• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Summary The invention relates to a device for loading at least one belt (10) at a specified belt tension, which belt (10) is arranged in a machine installation (1) with belt drive. The machine installation comprises a stand (3) provided with legs (2) placed on a foundation (4). A driving pulley (5) and at least one driven pulley (6) are lined in relation to each other. The legs (2) are hingedly attached to at least one of the stands or the foundation, and at least two of the legs (2) consist of longitudinally adjustable clamping legs (20), each of which comprises a first clamping leg part (21) with a wedge socket intended to receive a wedged surface (32) provided with wedge and a second clamping part (22) provided with a knurled surface (23) directed towards said wedge socket, that the first (21) and the second (22) clamping part are arranged to be read in relation to each other by that the knurled surface (32) of the wedge (31) cooperates with the knurled surface (23) of the other part of the clamping bone part (22) when the wedge (31) is arranged to wedge firmly into the wedge socket (30).
    公开号:SE1400286A1
    申请号:SE1400286
    申请日:2014-06-05
    公开日:2015-12-06
    发明作者:Tommy Cederstrand
    申请人:Rönnqvist & Wettainens Mek Verkst Ab；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION The invention relates to a device for loading a belt at a specified belt tension in a machine installation of the type which appears from the preamble of claim 1.
    Background of the Invention For machines having belt drives with one or more V-belts / belts (in the text below) between an engine with or without gearbox (hereinafter text motor / gearbox) and a machine driven shaft / axles (in the text driven shaft below) a tensioning device is used for stretching the belt.
    More specifically, the belt tension is normally adjusted by applying a force between the motor / gearbox with driving pulley and a machine driven pulley, after which, and at the exact belt tension, the distance of the pulleys is read in relation to each other by e.g. a gait device.
    Today, the belt tension is adjusted on most belt drives with the help of threaded elements, e.g. walk rods and adjusting nuts that you screw on when you increase / decrease the belt tension, where the installation is read with a lock nut. To do this, you need a tool and a food instrument to verify the belt tension every time you change / adjust the belt.
    A disadvantage of commonly used elements for obtaining belt tension is that this usually means that one has at least two adjustment points. With this method, the alignment must be repeated with instruments every time you release the belt tension. This does not always happen in practice. 2 A further disadvantage is that after a while it is common for the passages to be damaged by corrosion and / or mechanically, which means that it is not possible to reduce / reduce the belt tension without replacing the damaged passage elements.
    Replacement of running elements is an extra maintenance cost and in many cases it meant a downtime for the machine, and it is not uncommon for production to be lost as a result.
    To minimize production losses, it is sometimes the case that you choose to replace the belt with the help of tools in an improper manner that damages the belt and impairs the life of the belt. A set year that you wind on the belt by breaking it on the discs with a tool by overstretching the belt. Then there is a very high risk of losing control of the belt tension and alignment.
    Incorrect belt tension and non-aligned pulleys mean that belt drive} cars with unnecessarily high energy consumption and poor efficiency and that the belt life is shortened.
    Summary of the invention The object of the invention is thus to completely or partially obviate the above disadvantages, such as long downtime and loss of production, since with a device according to the invention one can service belt drive in a relatively short time and always with properly installed belt tension, thereby optimizing energy access and efficiency. and provides the conditions for a normal lifespan.
    This object is achieved according to the invention with a device for loading at least one belt at a certain belt tension, which belt is arranged in a machine arrangement with belt drive, which machine arrangement comprises a leg-provided stand placed on a foundation, a driving pulley, which is arranged on a drive shaft, and at least one driven pulley, which pulleys are lined in relation to each other, the legs being articulated at at least one frame or the foundation, and the object of the invention being that at least two of the legs consist of longitudinally adjustable clamping legs, that each longitudinally adjustable clamping leg comprises a first clamping part with a wedge socket intended to receive a wedge provided with a grooved surface and a second clamping part provided with a knurled surface directed towards said wedge socket, that the first and the second clamping part are arranged to be read in relation to each other. in that the knurled surface of the wedge cooperates with the knurled y of the other part of the clamping part take when the wedge is arranged to wedge firmly in the wedge box.
    Further features have the device for loading a belt at a certain belt tension according to the invention are stated in the dependent patent claims.
    BRIEF DESCRIPTION OF THE DRAWINGS The invention is described in more detail below in the form of a non-limiting example with reference to the accompanying drawing, in which - Fig. 1 is a side view of a machine housing with belt drive comprising a device for loading at least one belt at a specified belt tension according to the invention, which machine assembly comprises a leg-mounted frame placed on a foundation, wherein a driving pulley and at least one driven pulley are aligned in relation to each other, - Fig. 2 is a view obliquely from above of the machine assembly in Fig. 1, - Figs. Fig. 3 is an enlarged view of the part of the circle designated A in Fig. 2 of a clamping leg with a device for loosening a belt 4 at a certain belt tension according to the invention, Fig. 4 is a perspective view of a wedge which forms part of the device for loading a strap in Fig. 3, and Fig. 5 is a separate view of a first (to the left) and a second (to the right) clamping leg portion entering a clamping leg arranged between the frame and the foundation.
    Detailed Description of the Preferred Embodiment In the first assembly of the invention, the pulleys between the motor / gearshift and driven shaft are aligned with the aid of a food equipment (not shown). This installation is done with a slack belt, which means that you line up the motor and the shafts without buoyancy stresses and deformations.
    A machine arrangement 1 with belt drive according to Fig. 1 comprises a frame 3 provided with legs 2 which is placed on a foundation 4. In the embodiment shown, a motor / gearbox with a driving pulley 5 arranged on a drive shaft 5b is placed on the stand and a driven shaft 6b with driven pulley 6 placed on the foundation, but it is obvious that the motor / gearbox with driving pulley 5 and the driven shaft 6b with driven pulley 6 can be placed transversely. The driving pulley 5 and the driven pulley 6 are aligned in relation to each other. It should be mentioned that in an embodiment not shown, one or more belts 10 can 18pa over more than two pulleys.
    As can be seen from Fig. 2, the frame 3 in the embodiment shown is provided with four legs 2, which extend between the frame and the foundation. The legs 2 are preferably hingedly attached to at least one of the frame or foundation. The drive shaft 5b of the motor / gearbox has a geometric shaft B-B with the same longitudinal direction as the longitudinal direction of the driven shaft 6b. The angles of the legs 2 placed at the longitudinal direction have the said geometric axis B-B formed by longitudinally adjustable clamping legs 20, each longitudinally adjustable clamping leg comprising a first 21 and a second 22 clamping leg part. More specifically, the front strut 21a has the first strut portion 21 hingedly attached to the foundation 4, and a first end 22a has the second strut portion 22 hinged to the frame 3.
    The first clamping portion 21, which extends from the foundation towards the frame, is provided with a wedge socket 30 intended to receive a wedge 31 provided with a grooved surface 32. The second clamping portion 22, which extends from the frame towards the foundation, is provided with a knurled surface. 23, the grooves having the surfaces 23,32 having complementary shape. The second clamping leg part 22 is slidably arranged in the wedge socket 30.
    From Fig. 3 it can be seen that the first 21 and the second 22 clamping part are arranged to be displaced along each other and in their longitudinal direction for tensioning / slackening of the belt 10. In order to lock the first 21 and the second 22 clamping part in relation to each other in a certain and repeatably making the wedge socket 30 fixedly connected to the first clamping part 21 and directed towards the side of said clamping part against which the second clamping part abuts. The wedge socket 30 is formed by two parallel tongues 33, which extend perpendicular to the longitudinal direction, has the first tension leg part, and a crosspiece 34, which connects the parallel tongues 33, so that the wedge socket forms a member enclosing the wedge 31. The crosspiece 34 is angled in relation to the lambing direction, the ram legs have so that the distance at a first end 35 has the crosspiece directed towards the foundation between said first end and the second leg member 22 is shorter than a distance at a second end 36 has the crosspiece directed towards the frame between said second spirit and the second clamping part 22. The first clamping part 21 is at a second end 21h, which is directed towards the frame 3, preferably provided with a sweep 25, through which the second clamping part 22 is suitably displaceably arranged to improve lateral stability of the bucket.
    Assembly and application of belt tension The following describes the assembly of a belt 10 at the machine installation 1 and the application of belt tension. The belt 10 is mounted in a slack condition on the pulleys 5,6, after which a jack 40 or some other suitable clamping device is placed in a position between the frame 3 and the foundation 4 in order to be able to apply a force so that the belt 10 is tensioned up to the desired tension. Thereafter, the wedge 31 is inserted into the wedge socket 30 of the respective span 20 with its rounded surface 32 against the knurled surface 23, the second span portion 22 having the said surfaces abutting each other.
    Then the jack is released and the desired belt tension is obtained and read automatically by the wedge wedges fixed in the wedge socket, the first 21 and the second 22 tensioning part being laser in relation to each other by the knurled wedge surface cooperating with the flattened surface has the second tensioning part. The wedge will abut against A on one side the crosspiece 32 and on the other side the rafted surface 23.
    The welding takes place by the dead weight of the machine housing 1 and the tensile stress from the belt 10, or only by the tensile stress from the belt, possibly in combination with friction between the parts, ie. wedge / wedge joint / clamping part without wedge ring / clamping part with wedge ring.
    Slackening of belt tension When slackening the belt tension, the jack 40 is placed in its position and force is applied between frame 3 and foundation 4 warp 7 the friction welding of the invention is neutralized, ie. the wedge action between the knurled surface 32 of the wedge 31 and the knurled surface 23 of the second clamping part 22 ceases. More specifically, by the applied force, the ram struts of the respective struts 20 will be displaced in relation to each other, i.e. the clamping leg 20 is extended, the wedge 30 possibly being moved, in the embodiment shown being lifted, somewhat out of its wedging layer. The wedge can then be easily lifted / moved and the mechanical loading can be done. Then lower the jack 40 and slacken the belt 10 to the point where it can be easily removed.
    The device according to the invention provides a repeatable accuracy of the belt tension and the alignment between the motor / gearbox and the driven shaft during maintenance work.
    Although, in the embodiment shown, the longitudinally adjustable clamping legs 20 are shown arranged vertically in a machine housing of the type shown, it is obvious to the person skilled in the art that said legs can be arranged vertically in another type of machine housing. In this case the welding of the wedge 31 takes place by means of only the tensile stress from the belt 10, possibly in combination with friction between the integral parts, i.e. wedge / wedge joint / clamping part without wedge ring / clamping part with wedge ring.
    It is further obvious to the person skilled in the art that the belt described and shown in the above description can be constituted by e.g. a multi-ribbed belt or a toothed belt. 8
    权利要求:
    Claims (2)
    [1]
    Device for loading at least one belt (10) at a specified belt tension, which belt (10) is arranged in a machine housing (1) with belt drive, which machine housing comprises a frame (3) stuffed with legs (2) placed on a foundation (4), a driving pulley (5), as arranged on a drive shaft (5b), and at least one driven pulley (6), which pulleys are aligned in relation to each other, the legs (2) being hingedly attached to at least one of the racks or the foundation, characterized in that at least two of the legs (2) are made of longitudinally adjustable clamping legs (20), that habit of longitudinally adjustable clamping leg comprises a first clamping leg part (21) with a wedge socket (30) intended to receive a knurled surface (30). 32) provided wedge (31) and a second clamping part (22) provided with a knurled surface (23) directed towards said wedge socket, that the first (21) and the second 22. clamping part are arranged to be read in relation to each other by the wedge (31) raft laid surface (32) interacts with the other on the ribbed surface of the clamping part (22) 23. the wedge (31) is arranged to wedge firmly in the wedge socket (30). Device according to claim 1, characterized in that the longitudinally adjustable clamping legs (20) are placed at right angles to the longitudinal direction (B-B) of the drive shaft (5b). Device according to claim 1 or 2, characterized in that the wedge (31) is arranged to wedge into the wedge socket (30) by the dead weight of the machine housing (1) in combination with the tensile stress from the belt (10). Device according to claim 1 or 2, characterized in that the wedge (31) is az-arranged to wedge into the wedge socket (30) only by the tensile stress from the belt (10). Device according to any one of claims 1-4, characterized in that the wedge (31) and the second clamping part (22) are arranged to be welded to each other partly mechanically via the cooperating knurled surfaces (23, 32) and partly by friction between the input ends. the parts formed by wedge / wedge groove / the first and the second part of the span bone. Device according to any one of claims 1-5, characterized in that a second spirit (21b) of the first clamping part (21) is provided with a sweep (25) through which the second clamping part (22) is threaded. Device according to any one of claims 1-6, characterized in that a first spirit (21a) of the first tension member (21) is hingedly attached to the foundation (4), and that a first (22a) spirit of the second tension member (22) ) is articulated attached to the stand (3). i ....-- .. -.--
    [2]
    2. 0 ----, ii ‘
    类似技术:
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    同族专利:
    公开号 | 公开日
    FI126867B|2017-07-14|
    AU2015268958B2|2017-05-18|
    AU2015268958A1|2016-11-24|
    US20180231107A1|2018-08-16|
    FI20165858A|2016-11-15|
    CA2951139A1|2015-12-10|
    PE20170170A1|2017-04-01|
    WO2015187085A1|2015-12-10|
    SE538270C2|2016-04-19|
    US10174817B2|2019-01-08|
    AU2015268958A8|2016-12-01|
    CL2016003086A1|2017-05-05|
    CA2951139C|2017-07-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4177684A|1977-08-10|1979-12-11|Hesston Corporation|Angularly adjustable mounting for sprocket wheels and the like|
    US6083132A|1998-05-04|2000-07-04|Moxee Innovations Corporation|Free floating belt idler|
    US6244981B1|1998-09-21|2001-06-12|Borgwarner Inc.|Hydraulic tensioner with pawl-style external rack|
    ITMI20031644A1|2003-08-08|2005-02-09|Regina Ind Spa|CHAIN POWER TRANSMISSION SYSTEM EQUIPPED WITH MECHANICAL TENSIONER.|
    CN101583812B|2007-01-26|2011-12-28|博格华纳公司|sliding rack ratchet tensioner|
    US20110306450A1|2010-06-09|2011-12-15|Calvin Chou|Ratchet-based drive belt adjusting device|CN112682484B|2021-03-15|2021-07-06|上海捷勃特机器人有限公司|Synchronous belt tensioning and anti-loosening device and tensioning and anti-loosening method|
    CN113339469A|2021-05-26|2021-09-03|深圳市海洋王石油照明技术有限公司|Belt adjusting device and method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1400286A|SE538270C2|2014-06-05|2014-06-05|Device for locking a belt at a specified belt tension|SE1400286A| SE538270C2|2014-06-05|2014-06-05|Device for locking a belt at a specified belt tension|
    AU2015268958A| AU2015268958B2|2014-06-05|2015-06-02|A device for locking a belt at predetermined belt tension|
    US15/313,619| US10174817B2|2014-06-05|2015-06-02|Device for locking a belt at predetermined belt tension|
    CA2951139A| CA2951139C|2014-06-05|2015-06-02|A device for locking a belt at predetermined belt tension|
    PCT/SE2015/050641| WO2015187085A1|2014-06-05|2015-06-02|A device for locking a belt at predetermined belt tension|
    PE2016002519A| PE20170170A1|2014-06-05|2015-06-02|DEVICE TO LOCK A BELT TO A DEFAULT BELT TENSION|
    FI20165858A| FI126867B|2014-06-05|2016-11-15|DEVICE TO LOCK THE BELT IN PRE-FIXED BELT TENSION|
    CL2016003086A| CL2016003086A1|2014-06-05|2016-12-01|Device for blocking a transmission belt at a predetermined belt tension, comprising a platform having adjustable legs placed on a base, adapted to lock one in relation to the other by means of cooperation between grooved surfaces and a wedge.|
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