A quick assembly device for a continuously variable transmission

Abstract

The application discloses a kind of continuously variable transmission quick assembly equipment, it is related to transmission production technical field, including installation platform, installation platform top is symmetrically provided with base, the offset mechanism for changing the inclination angle of transmission is set on each base top, the adjusting mechanism for changing the distance between two bases is set on the upper surface of installation platform, by being provided with deflection mechanism, the inclination angle is changed by bracket driving transmission, can provide better work field of view for installer, makes installer more easily see the installation position and direction of part, can reduce the collision risk between parts, reduce the possibility of part damage, so that installer has better visibility, to reduce the time required for installing parts, reduce the installation difficulty of transmission parts, simultaneously, changing the inclination angle of transmission can change the influence of gravity on parts, help more accurately align and install parts.

Description

Technical Field

[0001] This invention relates to the field of transmission manufacturing technology, specifically to a continuously variable transmission (CVT) rapid assembly equipment. Background Technology

[0002] A continuously variable transmission (CVT) is a type of automotive transmission that offers a virtually continuous range of variable gear ratios. Unlike traditional stepped automatic or manual transmissions, a CVT automatically adjusts the gear ratio based on engine speed and load, keeping the engine near its optimal operating point to maximize fuel economy and power output. The CVT has a relatively simple structure, primarily consisting of two sets of tapered discs and a steel belt. When engine speed and load change, the electronic controller adjusts the pressure of the tapered discs in real time based on sensor data, causing the steel belt to move between the discs and thus altering the gear ratio.

[0003] However, the following defects exist in the assembly and testing process of the transmission;

[0004] 1. Continuously variable transmissions (CVTs) are high-precision transmission devices. During assembly, it is necessary to ensure the accurate installation position and mutual cooperation of each component. However, some CVTs have narrow internal spaces, which may restrict visibility and make it difficult for installers to clearly see the installation position and the alignment of parts, increasing the risk of installation errors.

[0005] 2. Different support bases are required when installing gearboxes of different sizes and specifications. In order to match gearboxes of different sizes and specifications, multiple different support bases need to be prepared, which will increase equipment costs and management costs.

[0006] Therefore, the present invention proposes a rapid assembly device for continuously variable transmissions (CVTs) to compensate for and improve the deficiencies of the prior art. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] To address the aforementioned shortcomings of existing technologies, this invention provides a rapid assembly device for continuously variable transmissions (CVTs), which effectively solves the problems of transmission parts obstructing the installer's view and the mismatch between the support base and the transmission in existing technologies.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0011] This invention discloses a continuously variable transmission (CVT) rapid assembly device, including a mounting platform. The mounting platform has symmetrically arranged bases on its top. Each base has an offset mechanism on its top for changing the tilt angle of the transmission. The upper surface of the mounting platform has an adjustment mechanism for changing the distance between the two bases.

[0012] The offset mechanism includes a first roller and a second roller arranged symmetrically. The first roller and the second roller are rotatably connected to the base respectively. A bracket is rolled between the first roller and the second roller. A connector for mounting a gearbox is fixedly connected to the top of the bracket. A linkage component for synchronously adjusting the two brackets is provided between the two bases.

[0013] Furthermore, the offset mechanism also includes a drive gear rotatably connected to the base, a rack fixedly connected to the surface of the bracket, the rack meshing with the drive gear, and baffles fixedly connected to both sides of the drive gear, the baffles being located on the side of the bracket.

[0014] Furthermore, the linkage assembly includes a sleeve fixedly connected to the rotating shaft of the drive gear, a slide rod slidably sleeved at the end of the sleeve away from the rotating shaft of the drive gear, the slide rod having a rectangular longitudinal section, and the end of the slide rod away from the sleeve being fixedly connected to the rotating shaft of the drive gear on another base.

[0015] Furthermore, the linkage assembly also includes a worm gear fixedly connected to the rotating shaft of the drive gear, and a worm is rotatably connected to the side of the base, the worm meshing with the worm gear.

[0016] Furthermore, the adjustment mechanism includes a slide rail fixedly connected to the upper surface of the mounting platform, the base being slidably connected to the slide rail, a bidirectional lead screw being rotatably connected to the upper surface of the mounting platform, the threaded sections at both ends of the bidirectional lead screw being threadedly connected to the two bases respectively, a first bevel gear being fixedly connected to one end of the bidirectional lead screw, a fixed frame being fixedly connected to the side of the mounting platform, a drive shaft being rotatably connected inside the fixed frame, a second bevel gear being fixedly connected to one end of the drive shaft, the second bevel gear meshing with the first bevel gear, and a limiting component for fixing the distance between the two bases being provided on the outside of the drive shaft.

[0017] Furthermore, the limiting component includes a disc fixedly connected to the outside of the drive shaft, a slot being formed on the outside of the disc, an L-shaped crossbar being inserted into the top of the fixing frame, a plug being fixedly connected to one end of the L-shaped crossbar, a fixing block being fixedly connected to the other end of the L-shaped crossbar, a groove being formed at the bottom of the fixing block, a ball being embedded inside the groove, an inclined surface being formed at the bottom of the fixing block, and a vertical rod being fixedly connected to the middle of the L-shaped crossbar, the vertical rod being slidably connected to the fixing frame.

[0018] Furthermore, a slot is provided at the end of the drive shaft away from the second bevel gear, and a limit block is slidably connected in the slot. An inner ring is sleeved on the outside of the drive shaft, and the inner side of the inner ring is fixedly connected to the limit block. A connecting rod is fixedly connected to the outside of the inner ring, and an outer ring is fixedly connected to the end of the connecting rod away from the inner ring. The outer side of the outer ring is located below the inclined plane.

[0019] (III) Beneficial Effects

[0020] Compared with known prior art, the technical solution provided by this invention has the following beneficial effects:

[0021] 1. By incorporating a deflection mechanism, the bracket drives the transmission to change its tilt angle, providing installers with a better working field of vision. This makes it easier for installers to see the installation position and direction of parts, reducing the risk of collisions between parts and the possibility of damage. Improved visibility reduces the time required for installation and simplifies the installation of transmission parts. Furthermore, changing the tilt angle of the transmission alters the effect of gravity on the parts, facilitating more accurate alignment and installation. This contributes to improved installation precision and ensures the normal operation and performance of the transmission.

[0022] 2. By incorporating an adjustment mechanism, the distance between the two brackets can be changed via a two-way lead screw when assembling gearboxes of different sizes and specifications. This allows the brackets to secure gearboxes of different sizes and specifications, thereby increasing the versatility of the brackets. As a result, gearbox manufacturers do not need to manufacture dedicated support brackets for each specific gearbox, reducing costs and inventory management complexity. It also avoids frequent changes to tooling fixtures, reduces installation time and work interruptions, and allows workers to quickly and easily install and replace gearboxes of different sizes. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle.

[0026] Figure 3 This is an exploded view of the offset mechanism in this invention.

[0027] Figure 4This is a top view of the present invention.

[0028] Figure 5 This is a three-dimensional structural diagram of the linkage component in this invention.

[0029] Figure 6 This is a side view of the limiting component in this invention.

[0030] Figure 7 In this invention Figure 5 Enlarged view of the structure at point A in the middle.

[0031] The labels in the diagram represent: 1. Mounting platform; 2. Base; 3. Offset mechanism; 31. First roller; 32. Second roller; 33. Bracket; 34. Connector; 35. Rack; 36. Drive gear; 37. Baffle; 38. Linkage assembly; 381. Sleeve; 382. Slide rod; 383. Worm gear; 384. Worm; 4. Adjustment mechanism; 41. Slide rail; 42. Double-acting lead screw; 43. First bevel gear; 44. Second bevel gear; 45. Drive shaft; 46. Fixing frame; 47. Limiting assembly; 471. Disc; 472. Slot; 473. Insert block; 474. L-shaped crossbar; 475. Vertical rod; 476. Fixing block; 477. Groove; 478. Inclined surface; 5. Slot; 6. Inner ring; 7. Connecting rod; 8. Outer ring; 9. Limiting block. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] The present invention will be further described below with reference to embodiments.

[0034] This embodiment describes a rapid assembly device for a continuously variable transmission (CVT), see [reference]. Figure 1 It includes a mounting platform 1, with bases 2 symmetrically arranged on the top of the mounting platform 1. Each base 2 is equipped with an offset mechanism 3 for changing the tilt angle of the gearbox, and an adjustment mechanism 4 for changing the distance between the two bases 2 is provided on the upper surface of the mounting platform 1.

[0035] See Figure 6 and Figure 7The limiting component 47 includes a disc 471 fixedly connected to the outside of the drive shaft 45. A slot 472 is provided on the outside of the disc 471. An L-shaped crossbar 474 is inserted into the top of the fixing frame 46. A plug block 473 is fixedly connected to one end of the L-shaped crossbar 474. A fixing block 476 is fixedly connected to the other end of the L-shaped crossbar 474. A groove 477 is provided at the bottom of the fixing block 476. A ball is embedded in the groove 477. An inclined surface 478 is provided at the bottom of the fixing block 476. A vertical rod 475 is fixedly connected to the middle of the L-shaped crossbar 474. The vertical rod 475 is slidably connected to the fixing frame 46.

[0036] In actual operation, after the outer ring 8 slides into the groove 477, the outer side of the outer ring 8 pushes the fixing block 476 upward. The upward movement of the fixing block 476 drives the L-shaped crossbar 474 to move upward synchronously. When the L-shaped crossbar 474 moves upward, it is stabilized by the vertical bar 475. The L-shaped crossbar 474 drives the insert block 473 to disengage from the slot 472. After the insert block 473 disengages from the slot 472, the drive shaft 45 can rotate. Pull the outer ring 8 away from the fixing block 476, so that the outer ring 8 disengages from the groove 477. Without the support of the outer ring 8, the L-shaped crossbar 474 drives the insert block 473 to descend under the action of gravity, so that the insert block 473 falls back into the slot 472. The rotation of the drive shaft 45 is restricted by the mutual cooperation between the insert block 473 and the slot 472.

[0037] See Figure 6 and Figure 7 A slot 5 is provided at the end of the drive shaft 45 away from the second bevel gear 44. A limit block 9 is slidably connected in the slot 5. An inner ring 6 is sleeved on the outside of the drive shaft 45. The inner side of the inner ring 6 is fixedly connected to the limit block 9. A connecting rod 7 is fixedly connected to the outside of the inner ring 6. An outer ring 8 is fixedly connected to the end of the connecting rod 7 away from the inner ring 6. The outer side of the outer ring 8 is located below the inclined plane 478.

[0038] In actual operation, the outer ring 8 drives the inner ring 6 to slide outside the transmission shaft 45 through the connecting rod 7. After the outer ring 8 slides into the groove 477, the insert block 473 can be disengaged from the slot 472, and the transmission shaft 45 can rotate.

[0039] See Figure 1 , Figure 4 and Figure 5The adjustment mechanism 4 includes a slide rail 41 fixedly connected to the upper surface of the mounting platform 1, a base 2 slidably connected to the slide rail 41, a bidirectional lead screw 42 rotatably connected to the upper surface of the mounting platform 1, threaded sections at both ends of the bidirectional lead screw 42 being threadedly connected to the two bases 2 respectively, a first bevel gear 43 fixedly connected to one end of the bidirectional lead screw 42, a fixed frame 46 fixedly connected to the side of the mounting platform 1, a drive shaft 45 rotatably connected inside the fixed frame 46, a second bevel gear 44 fixedly connected to one end of the drive shaft 45, the second bevel gear 44 meshing with the first bevel gear 43, and a limiting component 47 for fixing the distance between the two bases 2 is provided on the outside of the drive shaft 45.

[0040] In actual operation, the rotating drive shaft 45 drives the bidirectional lead screw 42 to rotate through the meshing second bevel gear 44 and the first bevel gear 43. The bidirectional lead screw 42 drives the two bases 2 to move relative to each other. The bases 2 move along the slide rail 41 above the mounting platform 1, thereby changing the spacing of the brackets 33 on the bases 2.

[0041] See Figure 1 and Figure 3 The offset mechanism 3 includes a first roller 31 and a second roller 32 symmetrically arranged. The first roller 31 and the second roller 32 are rotatably connected to the base 2, and a bracket 33 is rolled between the first roller 31 and the second roller 32. A connecting piece 34 for mounting a gearbox is fixedly connected to the top of the bracket 33. A linkage assembly 38 for synchronously adjusting the two brackets 33 is provided between the two bases 2. The bracket 33 has a semi-circular structure, and the connecting piece 34 is fixedly installed at each of the two top ends of the bracket 33.

[0042] In actual operation, the transmission is placed on the connector 34 and fixedly connected to the connector 34 by fixing bolts. The bracket 33 rotates on the surface of the first roller 31 and the second roller 32. The first roller 31 and the second roller 32 provide support for the bracket 33. The rotating bracket 33 changes the tilt angle of the transmission.

[0043] See Figure 3 The offset mechanism 3 also includes a drive gear 36 rotatably connected to the base 2. A rack 35 is fixedly connected to the surface of the bracket 33, and the rack 35 meshes with the drive gear 36. Baffles 37 are fixedly connected to both sides of the drive gear 36, and the baffles 37 are located on the sides of the bracket 33. The baffles 37 on both sides of the drive gear 36 limit the bracket 33 to prevent it from tipping over.

[0044] In actual operation, the drive gear 36 drives the semi-circular bracket 33 to rotate through the rack 35. The bracket 33 rotates on the surface of the first roller 31 and the second roller 32. The first roller 31 and the second roller 32 provide support for the bracket 33. The rotating bracket 33 changes the tilt angle of the transmission.

[0045] See Figure 4 and Figure 5 The linkage assembly 38 includes a sleeve 381 fixedly connected to the rotating shaft of the drive gear 36. A slide rod 382 is slidably sleeved at the end of the sleeve 381 away from the rotating shaft of the drive gear 36. The slide rod 382 has a rectangular longitudinal section. The end of the slide rod 382 away from the sleeve 381 is fixedly connected to the rotating shaft of the drive gear 36 on another base 2. When the distance between the two brackets 33 is adjusted, the slide rod 382 can slide within the cavity of the sleeve 381.

[0046] In actual operation, the drive gear 36 transmits power to another drive gear 36 through the sleeve 381 and the slide bar 382, ​​thereby driving the other drive gear 36 to rotate synchronously. In this way, the sleeve 381 and the slide bar 382 drive the two brackets 33 to rotate and tilt synchronously.

[0047] See Figure 4 and Figure 5 The linkage assembly 38 also includes a worm gear 383 fixedly connected to the rotating shaft of the drive gear 36, and a worm 384 rotatably connected to the side of the base 2, which meshes with the worm gear 383. A handwheel is installed at one end of the worm 384 to drive the worm 384 to rotate.

[0048] In actual operation, the handwheel drives the worm 384 to rotate, which in turn drives the worm wheel 383 to rotate. The worm wheel 383 then drives the drive gear 36 to rotate. The self-locking property of the worm wheel 383 and the worm 384 is used to prevent the bracket 33 from moving when it is tilted.

[0049] Overall work process:

[0050] Step 1, unlocking: Push the outer ring 8 horizontally. The outer ring 8 drives the inner ring 6 to slide on the outside of the drive shaft 45 through the connecting rod 7. During this process, the outer ring 8 slides along the inclined surface 478 of the fixing block 476 into the groove 477. After the outer ring 8 slides into the groove 477, the outer side of the outer ring 8 pushes the fixing block 476 upward. The upward movement of the fixing block 476 drives the L-shaped crossbar 474 to move upward synchronously. When the L-shaped crossbar 474 moves upward, it is kept stable by the vertical rod 475. The L-shaped crossbar 474 drives the insert 473 to disengage from the slot 472. After the insert 473 disengages from the slot 472, the drive shaft 45 can rotate.

[0051] The second step is to adjust the spacing: according to the required size of the gearbox to be assembled, change the spacing between the two brackets 33 so that the gearbox housing can be better supported. At this time, rotate the outer ring 8. The outer ring 8 drives the inner ring 6 to rotate synchronously through the connecting rod 7. Since the limiting block 9 fixedly connected to the inner side of the inner ring 6 is in the slot 5, the rotating outer ring 8 can drive the drive shaft 45 to rotate. The rotating drive shaft 45 drives the double-acting screw 42 to rotate through the meshing second bevel gear 44 and first bevel gear 43. The double-acting screw 42 drives the two bases 2 to move relative to each other. The bases 2 move along the slide rail 41 above the mounting platform 1. By rotating the outer ring 8 clockwise or counterclockwise, the two bases 2 are controlled to move closer or further apart, thereby changing the spacing of the brackets 33 on the bases 2 so that the brackets 33 can support gearboxes of different sizes.

[0052] The third step is to relock: After adjusting the distance between the two brackets 33, pull the outer ring 8 away from the fixing block 476 so that the outer ring 8 disengages from the groove 477. Without the support of the outer ring 8, the L-shaped crossbar 474 drives the insert block 473 to descend under the action of gravity, so that the insert block 473 falls back into the slot 472. The mutual cooperation between the insert block 473 and the slot 472 restricts the rotation of the drive shaft 45, thereby completing the locking of the bracket 33 and preventing the distance of the bracket 33 from changing.

[0053] Step 4, Adjusting the tilt angle: After locking the positions of the two brackets 33, place the gearbox on the connector 34 and fix the gearbox to the connector 34 with fixing bolts. Then, the parts can be installed inside the gearbox. When it is necessary to rotate the tilt angle of the gearbox, turn the handwheel to drive the worm 384 to rotate. The worm 384 drives the worm wheel 383 to rotate, and the worm wheel 383 drives the drive gear 36 to rotate. Since the drive gear 36 is meshed with the rack 35 on the surface of the bracket 33, the drive gear 36 drives the semi-circular bracket 33 through the rack 35. 3. When the gear rotates, the drive gear 36 transmits power to another drive gear 36 through the sleeve 381 and the slide bar 382, ​​thereby driving the other drive gear 36 to rotate synchronously. In this way, the sleeve 381 and the slide bar 382 drive the two brackets 33 to rotate and tilt synchronously. The brackets 33 rotate on the surfaces of the first roller 31 and the second roller 32. The first roller 31 and the second roller 32 provide support for the brackets 33. The rotating brackets 33 change the tilt angle of the gearbox, and the self-locking property of the worm gear 383 and the worm 384 prevents the brackets 33 from moving when tilting.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A continuously variable transmission (CVT) rapid assembly device, characterized in that, It includes a mounting platform, with symmetrically arranged bases on the top of the mounting platform. Each base is equipped with an offset mechanism on its top for changing the tilt angle of the transmission. An adjustment mechanism for changing the distance between the two bases is provided on the upper surface of the mounting platform. The offset mechanism includes a first roller and a second roller arranged symmetrically. The first roller and the second roller are rotatably connected to the base respectively. A bracket is rolled between the first roller and the second roller. A connecting piece for mounting the gearbox is fixedly connected to the top of the bracket. A linkage component for synchronously adjusting the angle of the two brackets is provided between the two bases. The offset mechanism also includes a drive gear rotatably connected to the base, a rack fixedly connected to the surface of the bracket, the rack meshing with the drive gear, and baffles fixedly connected to both sides of the drive gear, with the baffles located on the side of the bracket. The linkage assembly includes a sleeve that is fixedly connected to the rotating shaft of a drive gear on a base. A slide rod is slidably sleeved on the end of the sleeve away from the rotating shaft of the drive gear. The slide rod has a rectangular longitudinal section. The end of the slide rod away from the sleeve is fixedly connected to the rotating shaft of a drive gear on another base. The linkage assembly also includes a worm gear fixedly connected to the rotating shaft of the drive gear on one of the bases, and a worm is rotatably connected to the side of the base, with the worm meshing with the worm gear; The adjustment mechanism includes a slide rail fixedly connected to the upper surface of the mounting platform, a base slidably connected to the slide rail, a bidirectional lead screw rotatably connected to the upper surface of the mounting platform, threaded sections at both ends of the bidirectional lead screw being threadedly connected to the two bases respectively, a first bevel gear fixedly connected to one end of the bidirectional lead screw, a fixed frame fixedly connected to the side of the mounting platform, a drive shaft rotatably connected inside the fixed frame, a second bevel gear fixedly connected to one end of the drive shaft, the second bevel gear meshing with the first bevel gear, and a limiting component for fixing the distance between the two bases is provided on the outside of the drive shaft; The limiting component includes a disc fixedly connected to the outside of the drive shaft, a slot on the outside of the disc, an L-shaped crossbar inserted into the top of the fixing frame, a block fixedly connected to one end of the L-shaped crossbar, a fixing block fixedly connected to the other end of the L-shaped crossbar, a groove on the bottom of the fixing block, a ball embedded in the groove, an inclined surface on the bottom of the fixing block, and a vertical rod fixedly connected to the middle of the L-shaped crossbar, which is slidably connected to the fixing frame. A slot is provided at the end of the drive shaft away from the second bevel gear. A limit block is slidably connected inside the slot. An inner ring is sleeved on the outside of the drive shaft. The inner side of the inner ring is fixedly connected to the limit block. A connecting rod is fixedly connected to the outside of the inner ring. An outer ring is fixedly connected to the end of the connecting rod away from the inner ring. The outer side of the outer ring is located below the inclined plane.

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