Adjustable mounting auxiliary device for worm shaft

Abstract

The invention relates to the technical field of speed reducer worm installation, in particular to a worm shaft adjustable installation auxiliary device which comprises a fixed base, a belt wheel transmission assembly is arranged on the outer side surface of the fixed base, a lifting control assembly is arranged on the outer side surface of the fixed base, and a delay pushing assembly is arranged on the outer side surface of the fixed base. A lifting contact shaft is arranged on the surface of the outer side of the fixed base, the lifting control assembly is continuously pushed through the delay pushing assembly, the lifting contact shaft is driven to ascend to be matched with worm and worm wheel meshing, and the lifting control assembly and the delay pushing assembly can automatically ascend according to the actual working state of worm installation. The operation meshing state meets the requirement, the installation quality is improved, the delay pushing assembly can automatically detect the operation meshing clearance situation in the installation process, meshing is helped by pushing the lifting control assembly, it is ensured that operation is in the proper meshing state all the time, and subsequent maintenance work is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of the installation of the worm of a speed reducer, and particularly to an adjustable installation auxiliary device for a worm shaft. Background Technique

[0002] A worm and worm gear speed reducer is a mechanical device used to transmit power and change the rotational speed, mainly composed of a worm and a worm gear. The worm is similar to a spiral rod and is usually installed on the input shaft of the speed reducer. The worm gear is a toothed disc installed on the output shaft. When the worm rotates, it drives the worm gear to rotate through the meshing between the teeth, thereby achieving the effect of speed reduction. The motion and power are transmitted based on the meshing of the worm and the worm gear. The thread of the worm and the teeth of the worm gear cooperate with each other like a screw and a nut. The teeth of the worm continuously contact the teeth of the worm gear, pushing the worm gear to rotate slowly. For example, in some small lifting equipment, the electric motor drives the worm to rotate at a high speed, while the meshing worm gear rotates at a lower speed and outputs a larger torque at the same time, enabling the heavy object to be lifted or lowered smoothly.

[0003] When the existing speed reducer is installed, it is difficult to automatically adjust the meshing condition according to the actual working state of the worm installation, and it is only possible to automatically detect the meshing clearance between the worm and the worm gear during the installation process. It can only be processed by manual inspection and adjustment after the installation is completed. This not only increases the subsequent workload but also may affect the normal operation and service life of the equipment due to the clearance problem, reducing the installation quality.

[0004] In view of this, we have proposed an adjustable installation auxiliary device for a worm shaft. Summary of the Invention

[0005] The purpose of the present invention is to provide an adjustable installation auxiliary device for a worm shaft to solve the problem that in the existing worm installation, it is difficult to automatically adjust the meshing condition according to the actual working state of the worm installation as mentioned in the above background technique. To achieve the above purpose, the present invention provides the following technical solution: An adjustable installation auxiliary device for a worm shaft, including a fixed base, the outer surface of the fixed base is fixedly connected with a telescopic guide rail, the top surface of the telescopic guide rail is slidably connected with a moving support, the outer surface of the moving support is provided with a lifting limit chute, the outer surface of the fixed base is provided with a belt drive assembly, the outer surface of the fixed base is provided with a lifting control assembly, the outer surface of the fixed base is provided with a delay pushing assembly, and the outer surface of the fixed base is provided with a lifting contact shaft;

[0006] The delay pushing assembly continuously pushes the lifting control assembly to drive the lifting contact shaft to rise to control the meshing of the worm and the worm gear.

[0007] Preferably, the belt pulley transmission assembly includes an input belt pulley, which is rotatably connected to the outer surface of the fixed base and penetrates through the fixed base. A coupling installation groove is fixedly connected to one side surface of the input belt pulley. An input gear is fixedly connected to the outer surface of the input belt pulley. An idler gear group is engaged with the outer surface of the input gear. An output gear is engaged with the other side of the idler gear group. A fixed belt pulley is rotatably connected to the outer surface of the fixed base and is at the same height as the input belt pulley. A driving belt pulley is rotatably connected to the outer surface of the fixed base and is located at the bottom of the input belt pulley.

[0008] The coupling installation groove is connected to the reducer rotating shaft. A worm shaft is sleeved between the input belt pulley and the driving belt pulley to form a belt drive. The idler gear group consists of a pair of engaged gears, and the gears in the idler gear group are all rotatably connected to the fixed base. The output gear is fixedly connected to the outer surface of the fixed belt pulley.

[0009] Preferably, the lifting control assembly includes a lifting chute, which is opened on the outer surface of the fixed base and is a vertical rectangle. A lifting belt pulley is slidably connected to the inner surface of the lifting chute. A turnover chute is opened on the outer surface of the fixed base and is an arc. A turnover belt pulley is slidably connected to the inner surface of the turnover chute. A driven column is fixedly connected to the outer surface of the turnover belt pulley. A belt pulley rotating arm is rotatably connected to the outer surface of the lifting belt pulley. An arm hinge frame is rotatably connected to the outer surface of the turnover belt pulley.

[0010] Preferably, a worm shaft is sleeved between the lifting belt pulley, the turnover belt pulley and the fixed belt pulley to form a belt drive. The other end of the belt pulley rotating arm on the lifting belt pulley is hinge-connected to the arm hinge frame. A belt pulley rotating arm is rotatably connected to the outer surface of the fixed belt pulley, and the other end of the belt pulley rotating arm on the fixed belt pulley is hinge-connected to the arm hinge frame.

[0011] Preferably, the delay pushing component includes a driving worm, which is fixedly connected to a driving belt pulley. The outer surface of the driving worm meshes with a driven worm gear. The outer surface of the driven worm gear is fixedly connected to a trapezoidal threaded shaft. The outer surface of the trapezoidal threaded shaft is rotatably connected to a screw shaft bracket. The outer surface of the fixed base is slidably connected to a driving pushing seat. The outer surface of the driving pushing seat is provided with connecting grooves, and the connecting grooves are symmetrically distributed on the driving pushing seat and penetrate the driving pushing seat. The inner surface of the driving pushing seat is fixedly connected to an inner mounting rod. The outer surface of the inner mounting rod is sleeved with symmetrically distributed clamping springs. The outer surface of the driving pushing seat is slidably connected to movable threaded seats, and the number of the movable threaded seats is two. The movable threaded seats are threadedly connected to the trapezoidal threaded shaft. The outer surface of the driving pushing seat is fixedly connected to a fixed shaft support, and the trapezoidal threaded shaft is slidably connected to the inner surface of the fixed shaft support. The outer surface of the movable threaded seat is hingedly connected to a hinge rod, and the other end of the hinge rod is hingedly connected to a pressing boss. The outer surface of the fixed base is slidably connected to a driven pushing seat. The outer surface of the driven pushing seat is fixedly connected to an extending sliding groove. The outer surfaces of the driven pushing seat and the extending sliding groove are both provided with inner sliding grooves. The outer surface of the driven pushing seat is fixedly connected to symmetrically distributed connecting columns, and the connecting columns are slidably connected to the inner surface of the connecting groove. The outer surface of the connecting column is sleeved with a jacking spring, and both ends of the jacking spring are fixedly connected to the driving pushing seat and the driven pushing seat respectively. The outer surface of the driven pushing seat is slidably connected to a column clamping plate. The outer surface of the column clamping plate is fixedly connected to a connecting clamping block, and the connecting clamping block is slidably connected to the inner surface of the inner sliding groove.

[0012] Preferably, the number of the screw shaft brackets is two, and both of the two screw shaft brackets are fixedly connected to the fixed base. The inner mounting rod penetrates the movable threaded seat, and the movable threaded seat is slidably connected to the inner mounting rod. Both ends of the clamping spring are fixedly connected to the inner surface of the driving pushing seat and the outer surface of the movable threaded seat respectively. The pressing bosses on both sides of the hinge rod are symmetrically distributed. The pressing boss contacts the driven pushing seat. The inner surface of the column clamping plate is slidably connected to the driven column.

[0013] Preferably, the lifting contact shaft includes a driving rotating block, which is fixedly connected to a lifting pulley. The outer surface of the driving rotating block is fixedly connected to a driving rotating shaft, and the driving rotating shaft is a hexagonal prism. The other end of the driving rotating shaft is slidably connected to a driven rotating block. The outer surface of the driven rotating block is rotatably connected to a clamping lifting table. The inner surface of the clamping lifting table is slidably connected to symmetrically distributed clamping columns, and one end of each clamping column is a spherical head. One end of each clamping column is fixedly connected to a clamping spring, and both ends of the clamping spring are fixedly connected to the clamping column and the clamping lifting table respectively. The two side surfaces of the moving support are provided with equally spaced clamping grooves, and the clamping grooves are slidably connected to the clamping columns. The outer surface of the driving rotating shaft is sleeved with a connecting disc. The outer surface of the connecting disc is fixedly connected to an outer contact wheel, and the outer surface of the connecting disc is hinged to a hinge block.

[0014] Preferably, the driving rotating shaft penetrates through the driven rotating block, the clamping lifting table and the connecting disc. The driven rotating block penetrates through the clamping lifting table and is rotatably connected to its inner wall. The clamping lifting table is slidably connected to the outer surface of the moving support. The connecting discs and the outer contact wheels are equally spaced, and the two side connecting discs are respectively fixedly connected to the driving rotating block and the driven rotating block. The hinge blocks on the connecting discs are hinged to each other.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] In the present invention, through the combined action of the belt pulley transmission assembly, the lifting control assembly and the lifting contact shaft, the power installed on the worm is reasonably distributed to each component through the belt pulley transmission assembly to achieve control, reducing the cumbersome operation of manual adjustment and improving the installation efficiency.

[0017] In the present invention, through the combined action of the delay pushing assembly and the lifting control assembly, the lifting control assembly and the delay pushing assembly can automatically engage according to the actual working state of the worm installation, ensuring that the meshing state of the running belt meets the requirements, improving the installation quality. The delay pushing assembly can automatically detect the meshing situation of the worm and worm gear during the installation process. If there is a gap, it will automatically lift the worm to ensure that the running is always in a suitable meshing state, reducing subsequent maintenance work.

[0018] In the present invention, when the outer contact wheel on the lifting contact shaft contacts the worm through the combined action of the belt pulley transmission assembly and the lifting contact shaft, relative static is achieved through rotation, reducing friction and wear and extending the service life of the running and the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view schematic diagram A of the overall structure of the present invention;

[0020] Figure 2 It is a right view schematic diagram of the overall structure of the present invention;

[0021] Figure 3 It is the side view schematic diagram B of the overall structure of the present invention;

[0022] Figure 4 It is the schematic diagram of the cooperation structure between the pulley rotating arm and the arm hinge frame of the present invention;

[0023] Figure 5 It is the schematic diagram of the cooperation structure among the input pulley, input gear, output gear, and fixed pulley of the present invention;

[0024] Figure 6 It is the schematic diagram of the cooperation structure of each component of the delay pushing assembly of the present invention;

[0025] Figure 7 It is the schematic diagram of the cooperation structure among the driven pushing seat, column splint, and driven column of the present invention;

[0026] Figure 8 It is the schematic diagram of the cooperation structure between the active pushing seat and the driven pushing seat of the present invention;

[0027] Figure 9 For the present invention Figure 8 The enlarged view at A in;

[0028] Figure 10 It is the schematic diagram of the cooperation structure among the active pushing seat, clamping spring, and movable thread seat of the present invention;

[0029] Figure 11 It is the schematic diagram of the cooperation structure among the active pushing seat, movable thread seat, and pressing boss of the present invention;

[0030] Figure 12 It is the schematic diagram of the cooperation structure among the active pushing seat, ejecting spring, and driven pushing seat of the present invention;

[0031] Figure 13 It is the schematic diagram of the cooperation structure of each component of the lifting contact shaft of the present invention;

[0032] Figure 14 It is the schematic diagram of the cooperation structure among the connecting disc, outer contact wheel, and hinge block of the present invention;

[0033] Figure 15 It is the schematic diagram of the cooperation structure among the clamping lifting table, clamping column, and clamping spring of the present invention;

[0034] Figure 16 It is the schematic diagram of the cooperation structure between the lifting control assembly and the delay pushing assembly of the present invention;

[0035] Figure 17 It is the schematic diagram of the cooperation structure between the lifting control assembly and the pulley transmission assembly of the present invention.

[0036] In the figure: 1, fixed base; 11, telescopic guide rail; 2, moving support; 21, lifting limit chute; 3, belt pulley drive assembly; 31, input belt pulley; 311, coupling installation groove; 312, input gear; 313, idler gear group; 314, output gear; 32, fixed belt pulley; 33, drive belt pulley; 4, lifting control assembly; 41, lifting chute; 411, lifting belt pulley; 42, turnover chute; 421, turnover belt pulley; 422, driven column; 43, belt pulley rotating arm; 431, arm hinge bracket; 5, delay pushing assembly; 51, active worm; 52, driven worm gear; 521, trapezoidal threaded shaft; 522, screw shaft bracket; 53, active pushing seat; 531, connection groove; 532, inner mounting rod; 5321, clamping spring; 533, movable threaded seat; 534, fixed shaft support; 535, hinge rod; 5351, pressing boss; 54, driven pushing seat; 541, extension chute; 542, inner sliding chute; 543, connection column; 5431, ejecting spring; 55, column clamping plate; 551, connection block; 6, lifting contact shaft; 61, active rotating block; 62, active rotating shaft; 63, driven rotating block; 64, clamping lifting table; 641, engaging column; 642, engaging spring; 643, clamping groove; 65, connection disk; 651, outer contact wheel; 652, hinge block. Specific implementation mode

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0038] Please refer to Figures 1 to 17 , the present invention provides a technical solution: a worm shaft adjustable installation auxiliary device, including a fixed base 1, the outer surface of the fixed base 1 is fixedly connected with a telescopic guide rail 11, the top surface of the telescopic guide rail 11 is slidably connected with a moving support 2, the outer surface of the moving support 2 is provided with a lifting limit chute 21, the outer surface of the fixed base 1 is provided with a belt pulley drive assembly 3, the outer surface of the fixed base 1 is provided with a lifting control assembly 4, the outer surface of the fixed base 1 is provided with a delay pushing assembly 5, and the outer surface of the fixed base 1 is provided with a lifting contact shaft 6;

[0039] By continuously pushing the lifting control assembly 4 through the delay pushing assembly 5, the lifting contact shaft 6 is driven to rise to control the meshing of the worm and the worm gear;

[0040] The fixed base 1 is placed in a fixed position on one side of the reduction gear. Pull the movable support 2 to move it on the telescopic guide rail 11 to adapt to the length of the reduction gear, so that the fixed base 1 and the pulled movable support 2 are clamped on both sides of the reduction gear. During the process of adjusting the length, the lifting contact shaft 6 will be pulled apart, thereby extending the length to match reduction gears of different lengths, achieving the effect of facilitating installation. After the length adjustment is completed, a part of the power from the input end of the reduction gear is connected to the input pulley 31 through a coupling and a coupling installation groove 311. During the operation of the reduction gear, a part of the power is diverted to drive the delay pushing component 5 and the lifting contact shaft 6.

[0041] The belt pulley transmission component 3 includes an input pulley 31. The input pulley 31 is rotatably connected to the outer surface of the fixed base 1, and the input pulley 31 penetrates through the fixed base 1. A coupling installation groove 311 is fixedly connected to one side surface of the input pulley 31. An input gear 312 is fixedly connected to the outer surface of the input pulley 31. An idler gear group 313 is meshed with the outer surface of the input gear 312. The other side of the idler gear group 313 is meshed with an output gear 314. A fixed pulley 32 is rotatably connected to the outer surface of the fixed base 1, and the fixed pulley 32 is at the same height as the input pulley 31. A driving pulley 33 is rotatably connected to the outer surface of the fixed base 1, and the driving pulley 33 is located at the bottom of the input pulley 31;

[0042] Through the setting of the belt pulley transmission component 3, during use, the input pulley 31 is connected to the fixed pulley 32 through gears and to the driving pulley 33 through a worm shaft, thereby respectively driving the lifting contact shaft 6 and the delay pushing component 5. The position of the fixed pulley 32 remains unchanged and is used to drive the lifting contact shaft 6 to rotate. Since the longitudinal height of the fixed pulley 32 is the same as that of the input pulley 31 but the lateral position is different, and the lifting contact shaft 6 is directly below the fixed pulley 32, in this way, the lifting contact shaft 6 will not be below the input pulley 31 and only contacts the normal plane of the worm of the worm reduction gear. Moreover, the input pulley 31 drives the fixed pulley 32 to rotate through the idler gear group 313 and the output gear 314. There are a total of four gears, and the rotation directions of the input pulley 31 and the output gear 314 are opposite, so that the rotation directions of the input pulley 31 and the fixed pulley 32 are opposite;

[0043] The coupling installation groove 311 is used to receive the power from the input end of the reduction gear shaft. A belt is sleeved between the input pulley 31 and the driving pulley 33 to form a belt drive. The idler gear group 313 consists of a pair of meshing gears, and the gears in the idler gear group 313 are all rotatably connected to the fixed base 1. The output gear 314 is fixedly connected to the outer surface of the fixed pulley 32.

[0044] The lifting control assembly 4 includes a lifting chute 41 which is provided on the outer surface of the fixed base 1, and the lifting chute 41 is a vertical rectangle. A lifting pulley 411 is slidably connected to the inner surface of the lifting chute 41. A turnover chute 42 is provided on the outer surface of the fixed base 1, and the turnover chute 42 is arc-shaped. A turnover pulley 421 is slidably connected to the inner surface of the turnover chute 42. A driven column 422 is fixedly connected to the outer surface of the turnover pulley 421. A pulley rotating arm 43 is rotatably connected to the outer surface of the lifting pulley 411, and an arm hinge frame 431 is rotatably connected to the outer surface of the turnover pulley 421;

[0045] Through the setting of the lifting control assembly 4, during the use process, the fixed pulley 32 and the turnover pulley 421 are in belt transmission, and the turnover pulley 421 and the lifting pulley 411 are in belt transmission. Thus, the rotation of the fixed pulley 32 is transmitted to the lifting pulley 411 after passing through the turnover pulley 421. The lifting pulley 411 can longitudinally move within the lifting chute 41, and the turnover pulley 421 can move along an arc path within the turnover chute 42, and when moving, it takes the fixed pulley 32 as the center of the circle. The fixed pulley 32, the lifting pulley 411 and the turnover pulley 421 are connected by the pulley rotating arm 43 and the arm hinge frame 431. The turnover pulley 421 is connected to the arm hinge frame 431 at the middle position. When the turnover pulley 421 drives the arm hinge frame 431 to move horizontally, since both the fixed pulley 32 and the lifting pulley 411 cannot move horizontally and the position of the fixed pulley 32 is fixed, only the lifting pulley 411 can be pulled to rise. In this way, the two pulley rotating arms 43 rotate on the arm hinge frame 431 to adjust the included angle to become smaller, and further the distance between the two pulley rotating arms 43 also becomes smaller. And during the rising process of the lifting pulley 411, the distance between the fixed pulley 32 and the lifting pulley 411 remains unchanged, and the distance between the turnover pulley 421 and the lifting pulley 411 remains unchanged. The stable sleeving of the worm shaft is still maintained to make the lifting pulley 411 rotate. After the lifting pulley 411 rises, it will drive the lifting contact shaft 6 to rise. If there is a gap between the worm and the worm gear, the bottom of the worm of the speed reducer will be lifted upward to keep the worm and worm gear on the speed reducer in a meshing state.

[0046] A worm shaft is sleeved between the lifting pulley 411, the turnover pulley 421 and the fixed pulley 32 to form a belt drive. The other end of the pulley rotating arm 43 on the lifting pulley 411 is hingedly connected to the arm hinge frame 431. A pulley rotating arm 43 is rotatably connected to the outer surface of the fixed pulley 32, and the other end of the pulley rotating arm 43 on the fixed pulley 32 is hingedly connected to the arm hinge frame 431.

[0047] The delay pushing component 5 includes a driving worm 51, the driving worm 51 is fixedly connected with the driving pulley 33, a driven worm wheel 52 is meshed with the outer surface of the driving worm 51, a trapezoidal threaded shaft 521 is fixedly connected with the outer surface of the driven worm wheel 52, a screw shaft bracket 522 is rotatably connected with the outer surface of the trapezoidal threaded shaft 521, a driving pushing seat 53 is slidably connected with the outer surface of the fixed base 1, a connecting groove 531 is formed on the outer surface of the driving pushing seat 53, and the connecting grooves 531 are symmetrically distributed on the driving pushing seat 53 and penetrate through the driving pushing seat 53. An inner mounting rod 532 is fixedly connected with the inner surface of the driving pushing seat 53, symmetrically distributed clamping springs 5321 are sleeved on the outer surface of the inner mounting rod 532. An active thread seat 533 is slidably connected with the outer surface of the driving pushing seat 53, and the number of the active thread seats 533 is two. The active thread seat 533 is threadedly connected with the trapezoidal threaded shaft 521. A fixed shaft support 534 is fixedly connected with the outer surface of the driving pushing seat 53, and the trapezoidal threaded shaft 521 is slidably connected with the inner surface of the fixed shaft support 534. An articulated rod 535 is hinged to the outer surface of the active thread seat 533, and the other end of the articulated rod 535 is hinged to a pressing boss 5351. A driven pushing seat 54 is slidably connected with the outer surface of the fixed base 1, an extending sliding groove 541 is fixedly connected with the outer surface of the driven pushing seat 54, inner sliding grooves 542 are formed on the outer surfaces of the driven pushing seat 54 and the extending sliding groove 541. Symmetrically distributed connecting columns 543 are fixedly connected with the outer surface of the driven pushing seat 54, and the connecting columns 543 are slidably connected with the inner surface of the connecting groove 531. A jacking spring 5431 is sleeved on the outer surface of the connecting column 543, and both ends of the jacking spring 5431 are fixedly connected with the driving pushing seat 53 and the driven pushing seat 54 respectively. A column clamping plate 55 is slidably connected with the outer surface of the driven pushing seat 54, a connecting clamping block 551 is fixedly connected with the outer surface of the column clamping plate 55, and the connecting clamping block 551 is slidably connected with the inner surface of the inner sliding groove 542;

[0048] By delaying the setting of the pushing component 5, during use, the input pulley 31 and the driving pulley 33 are belt-driven to drive the driving worm 51 to rotate. The driving worm 51 meshes with the driven worm wheel 52, changing the transmission direction and achieving a speed reduction effect. The driven worm wheel 52 is fixedly connected to the trapezoidal threaded shaft 521 and supported by the screw shaft bracket 522. The driven worm wheel 52 drives the trapezoidal threaded shaft 521 to rotate. The trapezoidal threaded shaft 521 passes through the movable threaded seat 533 and the fixed shaft support 534 on the active pushing seat 53. In the initial state, the movable threaded seats 533 are pushed inward by the clamping springs 5321 on both sides and merged together to form a complete thread and are threadedly connected to the trapezoidal threaded shaft 521, so that the trapezoidal threaded shaft 521 drives the active pushing seat 53 to move towards the driven pushing seat 54 during rotation. If the worm installation descends during operation at this time, resulting in incomplete meshing, it will push the ejecting spring 5431 and then continue to push the driven pushing seat 54 to move. The driven pushing seat 54 continues to push the column clamp 55 to drive the driven column 422 and the turnover pulley 421 to move, so that the turnover pulley 421 is pushed and drives the lifting pulley 411 to rise, thereby pushing the worm to keep it meshing continuously. If the worm is already meshed during installation, it is difficult to push, the driven column 422 and the turnover pulley 421 cannot move, and the driven pushing seat 54 cannot be pushed by the active pushing seat 53 and can only stay in place temporarily. When the active pushing seat 53 moves, it will gradually press against the driven pushing seat 54 and compress the ejecting spring 5431, and the pressing boss 5351 on the active pushing seat 53 will be pressed down by the driven pushing seat 54, and the movable threaded seat 533 will be pushed to both sides by the hinge rod 535. At this time, the movable threaded seat 533 is separated from the trapezoidal threaded shaft 521 and does not form a threaded drive. The fixed shaft support 534 is connected to the trapezoidal threaded shaft 521 only for support. At this time, the rotation of the trapezoidal threaded shaft 521 will no longer push the active pushing seat 53 to move, so when installing the worm, the normal plane is automatically lifted from the bottom to improve the meshing stability. If there is a large meshing gap in subsequent work, the compressed ejecting spring 5431 will push the driven pushing seat 54 out again to continue to lift the worm or worm wheel of the reducer. After the driven pushing seat 54 is pushed out, the pressing boss 5351 is no longer pressed down, and the movable threaded seats 533 are pushed together again by the clamping springs 5321. At this time, the trapezoidal threaded shaft 521 will push the active pushing seat 53 for a second cycle, achieving the effect of automatically lifting the worm to keep it meshing when installing the reducer worm, and pushing again to reduce the gap and keep it meshing when there is a gap due to vibration or wear during long-term use of subsequent meshing impressions;

[0049] The column splint 55 is connected to the inner sliding groove 542 on the driven push seat 54 through the connecting block 551. In this way, the column splint 55 can not only be pushed horizontally, but also slide longitudinally on the driven push seat 54 to adapt to the changes in the longitudinal and horizontal positions after the turnover of the turnover pulley 421. Moreover, the extension sliding grooves 541 at the top and bottom of the driven push seat 54 can extend the maximum distance of the longitudinal movement of the column splint 55.

[0050] The number of the screw shaft brackets 522 is two, and both of the two screw shaft brackets 522 are fixedly connected to the fixed base 1. The inner mounting rod 532 penetrates through the movable threaded seat 533, and the movable threaded seat 533 is slidably connected to the inner mounting rod 532. The two ends of the clamping spring 5321 are respectively fixedly connected to the inner side surface of the active push seat 53 and the outer side surface of the movable threaded seat 533. The pressing bosses 5351 of the hinge rods 535 are symmetrically distributed on both sides. The pressing boss 5351 contacts the driven push seat 54, and the inner side surface of the column splint 55 is slidably connected to the driven column 422.

[0051] The lifting contact shaft 6 includes an active rotating block 61. The active rotating block 61 is fixedly connected to the lifting pulley 411. The outer side surface of the active rotating block 61 is fixedly connected to an active rotating shaft 62, and the active rotating shaft 62 is a hexagonal prism. The other end of the active rotating shaft 62 is slidably connected to a driven rotating block 63. The outer side surface of the driven rotating block 63 is rotatably connected to a clamping lifting table 64. The inner side surface of the clamping lifting table 64 is slidably connected to symmetrically distributed clamping columns 641, and one end of the clamping column 641 is a spherical head. One end of the clamping column 641 is fixedly connected to a clamping spring 642, and the two ends of the clamping spring 642 are respectively fixedly connected to the clamping column 641 and the clamping lifting table 64. The two side surfaces of the moving support 2 are provided with equidistantly distributed clamping grooves 643, and the clamping grooves 643 are slidably connected to the clamping columns 641. The outer side surface of the active rotating shaft 62 is sleeved with a connecting disc 65. The outer side surface of the connecting disc 65 is fixedly connected to an outer contact wheel 651. The outer side surface of the connecting disc 65 is hinged to a hinge block 652;

[0052] By setting up the lifting contact shaft 6, during use, the position of the active rotating block 61 on the fixed base 1 is fixed, and the driven rotating block 63 moves along with the moving support 2. In this way, when the moving support 2 moves, the active rotating block 61 and the driven rotating block 63 will pull or push the connecting plate 65 from both sides. The connecting plates 65 are hinged to each other through hinge blocks 652. According to the different angles of the hinge blocks 652, the distances at both ends are different, so that the distance between the connecting plates 65 can change with the distance between the fixed base 1 and the moving support 2, thus adapting to the installation of the worm of reducers with different lengths. Moreover, the distances between the connecting plates 65 change to the same length simultaneously, achieving the effect of stable support with dispersed force. After the position of the connecting plate 65 is determined, the connecting plate 65 contacts the normal plane at the bottom of the worm or worm gear through the outer contact wheel 651 on the outside. And the active rotating block 61 is connected to the lifting belt pulley 411 through the active rotating shaft 62. The rotation and lifting of the lifting belt pulley 411 will be transmitted to the connecting plate 65 and the outer contact wheel 651 through the active rotating block 61 and the active rotating shaft 62. Lifting realizes maintaining the meshing state, and rotation realizes making the rotational speeds of the outer contact wheel 651 and the worm the same but in opposite directions, so as to reduce friction and wear due to relative static at the contact points.

[0053] The active rotating shaft 62 passes through the driven rotating block 63, the clamping lifting table 64 and the connecting plate 65. The driven rotating block 63 passes through the clamping lifting table 64 and is rotatably connected to its inner wall. The clamping lifting table 64 is slidably connected to the outer surface of the moving support 2. The connecting plates 65 and the outer contact wheels 651 are evenly distributed. And the connecting plates 65 on both sides are respectively fixedly connected to the active rotating block 61 and the driven rotating block 63. The hinge blocks 652 on the connecting plates 65 are hinged to each other. During the upward movement of the active rotating shaft 62, the other end passes through the lifting limit sliding groove 21 and can lift inside, and is clamped to the outside of the moving support 2 through the clamping lifting table 64. The clamping column 641 will be pressed into the inside of the clamping lifting table 64, and when it contacts the next clamping groove 643, the clamping column 641 will be pushed into the clamping groove 643 by the clamping spring 642, and only the ball head of the clamping column 641 always enters the clamping groove 643, thereby increasing the stability after lifting on this side;

[0054] The connecting plates 65 are connected to each other through the hinge blocks 652 that are hinged to each other. These hinge blocks 652 are connected by hinge means to form a parallelogram mechanism, ensuring that the opposite sides are always parallel and equal in length during the telescoping process, which is a whole linkage system. When one of the connecting plates 65 moves and the angle of the pulled hinge block 652 changes, the characteristic of the opposite sides being parallel and equal in length remains unchanged. This causes the angles at all hinge points to change simultaneously, and will drive the angles of the adjacent connecting rods to change accordingly through the connection at the hinge points to maintain the parallelogram structure of the whole mechanism, so that the distances between the connecting plates 65 always increase and decrease simultaneously.

[0055] In this embodiment, as Figure 1 shown, the input pulley 31 is connected to the fixed pulley 32 through a gear, and a part of the power output from the speed reducer drives the pulley 33, thereby driving the lifting contact shaft 6 and the delay pushing assembly 5 respectively;

[0056] In this embodiment, as Figure 2 , Figure 3 , Figure 13 , Figure 14 shown, the moving support 2 is pulled to move on the telescopic guide rail 11 to adapt to the length of the worm of the speed reducer. During the process of adjusting the length, the lifting contact shaft 6 will be pulled apart;

[0057] In this embodiment, as Figure 1 , Figure 4 shown, the other end of the pulley rotating arm 43 on the lifting pulley 411 is hinged to the arm hinge frame 431, and the other end of the pulley rotating arm 43 on the fixed pulley 32 is hinged to the arm hinge frame 431;

[0058] In this embodiment, as Figure 1 , Figure 5 shown, the input pulley 31 is connected to the fixed pulley 32 through a gear. The fixed pulley 32 is driven to rotate by the input pulley 31, the idler gear group 313 and the output gear 314. There are a total of four gears. The rotation directions of the input pulley 31 and the output gear 314 are opposite, so that the rotation directions of the input pulley 31 and the fixed pulley 32 are opposite;

[0059] In this embodiment, as Figure 6 , Figure 10 , Figure 11 shown, if the movable thread seat 533 is pushed inward by the clamping springs 5321 on both sides and merged together to form a complete thread and thread-connect with the trapezoidal thread shaft 521 in the initial state, the trapezoidal thread shaft 521 drives the active pushing seat 53 to move towards the driven pushing seat 54 during rotation;

[0060] In this embodiment, as Figure 7 shown, the driven pushing seat 54 continues to push the column clamping plate 55 to clamp the driven column 422 and the turnover pulley 421. The column clamping plate 55 can be pushed not only horizontally but also slide longitudinally on the driven pushing seat 54;

[0061] In this embodiment, as Figure 8 , Figure 9 , Figure 11 , Figure 12As shown, the driven push seat 54 cannot be pushed by the driving push seat 53 and can only stay in place temporarily. When the driving push seat 53 moves, it will gradually press against the driven push seat 54 and compress the ejecting spring 5431. Moreover, the pressing boss 5351 on the driving push seat 53 will be immediately pressed down by the driven push seat 54, and the movable threaded seat 533 will be pushed to both sides by using the hinge rod 535. At this time, the movable threaded seat 533 is separated from the trapezoidal threaded shaft 521 and does not form a threaded drive;

[0062] In this embodiment, as Figure 15 shown, the engaging post 641 will be pressed into the clamping lifting table 64, and when it contacts the next clamping groove 643, the engaging post 641 will be pushed into the clamping groove 643 by the engaging spring 642;

[0063] In this embodiment, as Figure 16 、 Figure 17 shown, the turnover pulley 421 is pushed and drives the lifting pulley 411 and the lifting contact shaft 6 to rise, thereby tightening the running belt on which the worm is installed.

[0064] The usage method and advantages of the present invention: For this worm and worm gear shaft adjustable installation auxiliary device, the working process is as follows:

[0065] As Figures 1 to 17As shown in the figure, during use, the fixed base 1 is fixed in position and placed on one side of the worm of the speed reducer. The movable support 2 is pulled to move on the telescopic guide rail 11 to adapt to the length of the worm, so that the fixed base 1 and the pulled movable support 2 are located on both sides of the worm. During the process of adjusting the length, the lifting contact shaft 6 will be pulled apart. The active rotating block 61 and the driven rotating block 63 will pull or push the connecting plate 65 from both sides. The connecting plates 65 are hinged to each other through the hinge block 652. According to the different angles of the hinge block 652, the distances at both ends are different, so that the distance between the connecting plates 65 can change following the distance between the fixed base 1 and the movable support 2, and the distances between the connecting plates 65 change to the same length at the same time, achieving the effect of stable support with distributed force to match speed reducers of different lengths. A part of the rotation of the speed reducer is divided through the coupling and connected to the input pulley 31 through the coupling installation groove 311. The input pulley 31 drives the lifting contact shaft 6 and the delay pushing component 5 respectively, but the rotation direction of the input pulley 31 is opposite to that of the output gear 314. The driving pulley 33 drives the belt and drives the active worm 51 to rotate. The active worm 51 meshes with the driven worm wheel 52, and the driven worm wheel 52 drives the trapezoidal threaded shaft 521 to rotate. The trapezoidal threaded shaft 521 passes through the movable threaded seat 533 and the fixed shaft support 534 on the active pushing seat 53. In the initial state, the movable threaded seats 533 are pushed inward by the clamping springs 5321 on both sides and merged together to form a complete thread and are threadedly connected to the trapezoidal threaded shaft 521, so that the trapezoidal threaded shaft 521 drives the active pushing seat 53 to move towards the driven pushing seat 54 during rotation. If there is a gap in the operation of the worm installation at this time, resulting in unstable meshing with the worm wheel, it will push the ejecting spring 5431 and then continue to push the driven pushing seat 54 to move. The driven pushing seat 54 continues to push the column clamping plate 55 to drive the driven column 422 and the turnover pulley 421 to move. When the turnover pulley 421 drives the arm hinge frame 431 to move horizontally, since both the fixed pulley 32 and the lifting pulley 411 cannot move horizontally and the position of the fixed pulley 32 is fixed, only the lifting pulley 411 can be pulled up. In this way, the two pulley rotating arms 43 rotate on the arm hinge frame 431 to adjust the included angle to become smaller, and then the distance between the two pulley rotating arms 43 also becomes smaller. And during the process of the lifting pulley 411 rising, the distance between the fixed pulley 32 and the lifting pulley 411 remains unchanged, and the distance between the turnover pulley 421 and the lifting pulley 411 remains unchanged. The stable sleeving of the worm shaft is still maintained to make the lifting pulley 411 rotate. After the lifting pulley 411 rises, it will drive the lifting contact shaft 6 to rise, thus lifting the worm of the speed reducer from the bottom upwards. And the active rotating block 61 is connected to the lifting pulley 411 through the active rotating shaft 62. The rotation and lifting of the lifting pulley 411 will be transmitted to the connecting plate 65 and the outer contact wheel 651 through the active rotating block 61 and the active rotating shaft 62. The lifting realizes the control of meshing, and the rotation realizes that the rotational speed between the outer contact wheel 651 and the worm is the same but the rotation direction is opposite, reducing the friction between them, and being in a suitable meshing state under the action of the ejecting spring 5431.At this time, when the active pushing seat 53 is actively pushed to move, it will gradually press against the driven pushing seat 54 and compress the ejecting spring 5431. Once the pressing boss 5351 on the active pushing seat 53 contacts the driven pushing seat 54, it will be pressed down, and the movable threaded seat 533 will be pushed to both sides by the hinge rod 535. At this time, the movable threaded seat 533 is separated from the trapezoidal threaded shaft 521 and does not form a threaded drive. The fixed shaft support 534 is connected to the trapezoidal threaded shaft 521 only for support. At this time, the rotation of the trapezoidal threaded shaft 521 will no longer push the active pushing seat 53 to move. If the meshing of the worm and worm gear is unstable again subsequently, the compressed ejecting spring 5431 will eject the driven pushing seat 54 again to continue to lift the worm shaft. After the driven pushing seat 54 is ejected, the pressing boss 5351 is no longer pressed down, and the movable threaded seat 533 is pushed inward by the clamping spring 5321 and merges together again. At this time, the trapezoidal threaded shaft 521 will push the active pushing seat 53 to perform a second cycle, achieving the effect of lifting and meshing when installing the worm shaft of the reducer and meshing again when there is a gap in subsequent work.,

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable installation auxiliary device for a worm shaft, comprising a fixed base (1). The outer surface of the fixed base (1) is fixedly connected with a telescopic guide rail (11). The top surface of the telescopic guide rail (11) is slidably connected with a moving support (2). A lifting limit chute (21) is formed on the outer surface of the moving support (2). It is characterized in that: A pulley drive assembly (3) is arranged on the outer surface of the fixed base (1). A lifting control assembly (4) is arranged on the outer surface of the fixed base (1). A delay pushing assembly (5) is arranged on the outer surface of the fixed base (1). A lifting contact shaft (6) is arranged on the outer surface of the fixed base (1). The delay pushing assembly (5) continuously pushes the lifting control assembly (4) to drive the lifting contact shaft (6) to rise to control the meshing of the worm and the worm wheel. The lifting control assembly (4) includes a lifting chute (41). The lifting chute (41) is formed on the outer surface of the fixed base (1), and the lifting chute (41) is a vertical rectangle. A lifting pulley (411) is slidably connected to the inner surface of the lifting chute (41). A turnover chute (42) is formed on the outer surface of the fixed base (1), and the turnover chute (42) is arc-shaped. A turnover pulley (421) is slidably connected to the inner surface of the turnover chute (42). A driven column (422) is fixedly connected to the outer surface of the turnover pulley (421). A pulley rotating arm (43) is rotatably connected to the outer surface of the lifting pulley (411). An arm hinge frame (431) is rotatably connected to the outer surface of the turnover pulley (421).

2. The adjustable installation auxiliary device for a worm shaft according to claim 1, characterized in that: The pulley drive assembly (3) includes an input pulley (31). The input pulley (31) is rotatably connected to the outer surface of the fixed base (1), and the input pulley (31) penetrates through the fixed base (1). A coupling installation groove (311) is fixedly connected to one side surface of the input pulley (31). An input gear (312) is fixedly connected to the outer surface of the input pulley (31). An idler gear group (313) is meshed with the outer surface of the input gear (312). The other side of the idler gear group (313) is meshed with an output gear (314). A fixed pulley (32) is rotatably connected to the outer surface of the fixed base (1), and the fixed pulley (32) and the input pulley (31) are at the same height. A driving pulley (33) is rotatably connected to the outer surface of the fixed base (1), and the driving pulley (33) is located at the bottom of the input pulley (31).

3. An adjustable installation auxiliary device for a worm shaft according to claim 1, characterized in that: The coupling installation groove (311) is connected to the reducer rotating shaft. A belt drive is formed by sleeving a worm shaft between the input pulley (31) and the driving pulley (33). The idler gear group (313) is composed of a pair of meshing gears, and the gears in the idler gear group (313) are all rotatably connected to the fixed base (1). The output gear (314) is fixedly connected to the outer surface of the fixed pulley (32).

4. A worm shaft adjustable mounting auxiliary device according to claim 1, characterized in that: A belt drive is formed by sleeving a worm shaft between the lifting pulley (411), the epicyclic pulley (421) and the fixed pulley (32). The other end of the pulley rotating arm (43) on the lifting pulley (411) is hinged to the arm hinge frame (431). The outer surface of the fixed pulley (32) is rotatably connected with the pulley rotating arm (43), and the other end of the pulley rotating arm (43) on the fixed pulley (32) is hinged to the arm hinge frame (431).

5. An adjustable worm shaft mounting auxiliary device according to claim 1, characterized in that: The delay pushing assembly (5) includes a driving worm (51), which is fixedly connected with the driving pulley (33). The outer surface of the driving worm (51) is meshed with a driven worm wheel (52). The outer surface of the driven worm wheel (52) is fixedly connected with a trapezoidal threaded shaft (521). The outer surface of the trapezoidal threaded shaft (521) is rotatably connected with a screw shaft bracket (522). The outer surface of the fixed base (1) is slidably connected with a driving pushing seat (53). The outer surface of the driving pushing seat (53) is provided with connecting grooves (531), and the connecting grooves (531) are symmetrically distributed on the driving pushing seat (53) and penetrate through the driving pushing seat (53). The inner surface of the driving pushing seat (53) is fixedly connected with an inner mounting rod (532). The outer surface of the inner mounting rod (532) is sleeved with symmetrically distributed clamping springs (5321). The outer surface of the driving pushing seat (53) is slidably connected with movable threaded seats (533), and the number of the movable threaded seats (533) is two. The movable threaded seats (533) are threadedly connected with the trapezoidal threaded shaft (521). The outer surface of the driving pushing seat (53) is fixedly connected with a fixed shaft support (534), and the trapezoidal threaded shaft (521) is slidably connected with the inner surface of the fixed shaft support (534). The outer surface of the movable threaded seat (533) is hinged with a hinge rod (535). The other end of the hinge rod (535) is hinged with a pressing boss (5351). The outer surface of the fixed base (1) is slidably connected with a driven pushing seat (54). The outer surface of the driven pushing seat (54) is fixedly connected with an extending sliding groove (541). The outer surfaces of the driven pushing seat (54) and the extending sliding groove (541) are both provided with inner sliding grooves (542). The outer surface of the driven pushing seat (54) is fixedly connected with symmetrically distributed connecting columns (543), and the connecting columns (543) are slidably connected with the inner surfaces of the connecting grooves (531). The outer surface of the connecting column (543) is sleeved with an ejecting spring (5431), and both ends of the ejecting spring (5431) are fixedly connected with the driving pushing seat (53) and the driven pushing seat (54) respectively. The outer surface of the driven pushing seat (54) is slidably connected with a column clamping plate (55). The outer surface of the column clamping plate (55) is fixedly connected with a connecting block (551), and the connecting block (551) is slidably connected with the inner surface of the inner sliding groove (542).

6. An adjustable mounting auxiliary device for a worm shaft according to claim 5, characterized in that: The number of the screw shaft brackets (522) is two, and both of the two screw shaft brackets (522) are fixedly connected to the fixed base (1). The inner mounting rod (532) penetrates through the movable threaded seat (533), and the movable threaded seat (533) is slidably connected to the inner mounting rod (532). The two ends of the clamping spring (5321) are respectively fixedly connected to the inner surface of the active pushing seat (53) and the outer surface of the movable threaded seat (533). The pressing convex platforms (5351) of the hinge rod (535) are symmetrically distributed on both sides. The pressing convex platform (5351) contacts the driven pushing seat (54). The inner surface of the column clamp (55) is slidably connected to the driven column (422).

7. An adjustable mounting auxiliary device for a worm shaft according to claim 1, characterized in that: The lifting contact shaft (6) includes an active rotating block (61). The active rotating block (61) is fixedly connected to the lifting pulley (411). The outer surface of the active rotating block (61) is fixedly connected to an active rotating shaft (62), and the active rotating shaft (62) is a hexagonal prism. The other end of the active rotating shaft (62) is slidably connected to a driven rotating block (63). The outer surface of the driven rotating block (63) is rotatably connected to a clamping lifting table (64). The inner surface of the clamping lifting table (64) is slidably connected to symmetrically distributed clamping columns (641), and one end of the clamping column (641) is a ball head. One end of the clamping column (641) is fixedly connected to a clamping spring (642), and the two ends of the clamping spring (642) are respectively fixedly connected to the clamping column (641) and the clamping lifting table (64). The two side surfaces of the moving support (2) are provided with equidistantly distributed clamping grooves (643), and the clamping grooves (643) are slidably connected to the clamping columns (641). The outer surface of the active rotating shaft (62) is sleeved with a connecting disk (65). The outer surface of the connecting disk (65) is fixedly connected to an outer contact wheel (651). The outer surface of the connecting disk (65) is hinge-connected to a hinge block (652).

8. An adjustable mounting auxiliary device for a worm shaft according to claim 7, characterized in that: The active rotating shaft (62) penetrates through the driven rotating block (63), the clamping lifting table (64) and the connecting disk (65). The driven rotating block (63) penetrates through the clamping lifting table (64) and is rotatably connected to its inner wall. The clamping lifting table (64) is slidably connected to the outer surface of the moving support (2). The connecting disks (65) and the outer contact wheels (651) are equidistantly distributed, and the two side connecting disks (65) are respectively fixedly connected to the active rotating block (61) and the driven rotating block (63). The hinge blocks (652) on the connecting disks (65) are hinged to each other.

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