Worm variable pitch module with adjustable limiting mechanism
By introducing an adjustable limiting mechanism into the worm gear variable distance module, the conflict mechanism between the limiting block and the stop is solved, and the problem of the guide column colliding with the end of the spiral track is achieved with a longer service life and lower maintenance costs.
Patent Information
- Application Number
- CN202421178236.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-27
AI Technical Summary
When the worm gear module is working, the ends of the guide column and the spiral track are prone to collision, resulting in transmission deviations and increasing maintenance costs.
A worm gear shift module with an adjustable limiting mechanism is designed. By setting a slide table and limiting block above the worm, the conflict mechanism between the limiting column and the stop is used to avoid collision between the guide column and the end of the spiral track.
It effectively avoids the end collision between the guide column and the spiral track, extends the service life of the worm and guide column, reduces maintenance costs, and improves the stability and controllability of the module.
Smart Images
Figure CN222612240U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pitch-changing modules, and in particular relates to a worm pitch-changing module with an adjustable limiting mechanism. Background Art
[0002] With the increasing development of mechanized production, the use of automated production equipment has become universal. In the process of automated production, it often happens that the storage distance requirements for products are inconsistent in different processing steps of products. The worm pitch module is widely used to solve this problem due to its mature technology, low cost, and precise and controllable displacement.
[0003] The worm pitch change module changes the distance of the product carried on it by processing a spiral track on the worm. In order to smoothly transmit the product, most worm torque conversion modules need to use a slide to support the product for transmission. In order to increase the controllability of the worm torque conversion transmission, the slide often needs to move in the spiral track through a guide column. In order to ensure the rigidity of the guide column and the worm, generally, the guide column and the worm are made of metal materials. Once a collision occurs between the guide column and the spiral track, the spiral track and the guide column are easily deformed, resulting in transmission deviation of the worm torque conversion module.
[0004] Since the guide post is in direct contact with the spiral track, when the worm torque converter module is currently working, the guide post and the end of the spiral track are prone to collision, which greatly increases the maintenance cost of the worm torque converter module. Utility Model Content
[0005] In order to solve the problems raised in the above background technology, the utility model provides a worm pitch changing module with an adjustable limit mechanism, which has the characteristics of simple structure, stable operation, and effective avoidance of collision between the guide column and the end of the spiral track.
[0006] To achieve the above-mentioned purpose, the utility model provides a worm pitch changing module with an adjustable limit mechanism, including a worm and several slides arranged above the worm, and a limit block. The limit block includes at least one limit column. The worm rotates to drive the slide to move along the spiral track arranged on the worm, and the rightmost slide moves to the first preset position and abuts against the limit column.
[0007] As a further description of the above technical solution: it also includes an end cover arranged on the right side of the worm, the worm can rotate relative to the end cover, and the limit block is arranged above the end cover.
[0008] As a further description of the above technical solution: the limiting column is sleeved in the limiting block.
[0009] As a further description of the above technical solution: the material of the limit column is non-metallic material.
[0010] As a further description of the above technical solution: the material of the limit column is urethane foam.
[0011] As a further description of the above technical solution: there are two limit columns.
[0012] As a further description of the above technical solution: a positioning column is provided on the slide, and a guide column is provided on one end of the positioning column close to the worm, and the slide can move along a spiral track provided on the worm through the guide column.
[0013] As a further description of the above technical solution: a stopper is also provided on the slide.
[0014] As a further description of the above technical solution: the material of the stopper is urethane foam.
[0015] As a further description of the above technical solution: it also includes a sensor.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] The utility model arranges an end cover at the end of the shell away from the motor side, and arranges a limit block above the end cover, the limit block includes at least one limit column, when the motor rotates clockwise, it drives the worm to rotate clockwise, the worm drives the slide to move along the spiral track toward the tail of the track, when the rightmost slide reaches the first preset position, the slide collides with the limit column, the guide column cannot reach the tail of the track, and the guide column will not collide with the tail of the track.
[0018] The utility model arranges a stopper on the slide, and when the motor rotates counterclockwise, it drives the worm to rotate counterclockwise, and the worm drives the slide to move along the spiral track toward the track head. When the rightmost slide reaches the second preset position, the stopper on the slide collides with the adjacent slide or the stopper on the adjacent slide, the guide column cannot reach the track head, and the guide column will not collide with the track head.
[0019] The utility model prolongs the service life of the worm and the guide column, has the characteristics of simple structure, stable operation, and effectively avoiding collision between the guide column and the end of the spiral track. It can effectively prolong the service life of the worm pitch change module, reduce the maintenance cost of the worm torque change module, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0021] Figure 1 This is a schematic diagram of the overall structure of a worm pitch-changing module with an adjustable limit mechanism proposed by the utility model;
[0022] Figure 2 A schematic diagram of a worm structure of a worm pitch-changing module with an adjustable limit mechanism proposed by the utility model;
[0023] Figure 3 This is a schematic diagram of the installation structure of a worm pitch-changing module with an adjustable limit mechanism proposed by the utility model;
[0024] Figure 4 It is a structural explosion diagram of a worm pitch-changing module with an adjustable limiting mechanism proposed by the utility model.
[0025] Reference numerals:
[0026] 10... housing, 101... end cover, 102... support rod
[0027] 11……Motor
[0028] 12...slide table, 121...positioning column, 122...guide column
[0029] 13... worm, 131... worm limit end, 132... spiral track, 133... track head, 134... track tail
[0030] 14...limit block, 141...limit column, 142...limit hole
[0031] 15...Block
[0032] 16...Sensors DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0034] See also Figure 1 The utility model provides a worm pitch-changing module with an adjustable limit mechanism, including a motor 11, a worm 13 and a slide 12.
[0035] Optionally, one end of the worm 13 is connected to the motor 11 via a bearing, and the motor 11 rotates to drive the worm 13 to rotate synchronously.
[0036] Optionally, a plurality of slides 12 are disposed above the worm 13 , and the slides 12 are arranged left and right along the length direction of the worm 13 , and the slides 12 can move relative to the worm 13 .
[0037] Optionally, the worm 13 is provided with a plurality of spiral tracks 132 along the axial direction.
[0038] Optionally, the number of the slides 12 is the same as the number of the spiral tracks 132 .
[0039] Optionally, in order to ensure the safety of the worm 13 during operation, a shell 10 is provided outside the worm 13 , and the shell 10 is sleeved on the outside of the worm 13 to wrap the worm 13 .
[0040] Optionally, for ease of disassembly and assembly, the housing 10 further includes an end cover 101 , and the end cover 101 is disposed at an end of the housing 10 away from the motor 11 .
[0041] Optionally, the worm 13 can rotate relative to the end cover 101 and the housing 10 .
[0042] Optionally, a limit block 14 is provided above the end cover 101 , and the limit block 14 is connected to the end cover 101 via threads.
[0043] Optionally, the housing 10 is further provided with a support rod 102, and the support rod 102 is arranged between the worm 13 and the slide 12. The slide 12 is connected to the support rod 102 and can move relative to the support rod 102. In this arrangement, the slide 21 will be constrained by the support rod 102 and the spiral track 132 at the same time when moving, and the movement is very reliable and accurate. At the same time, when the parameters need to be changed, it is also very convenient to set up.
[0044] Optionally, there are two support rods 102 .
[0045] Optionally, a sensor 16 is further included. The sensor 16 is disposed on a side of the housing 10 away from the motor 11. When the sensor 16 senses that the slide 12 passes by, the motor 11 is notified to rotate in the reverse direction.
[0046] Optionally, there are two sensors 16 .
[0047] For further information, see Figure 2, the worm 13 is provided with several spiral tracks 132 along the length direction, and the spiral track 132 has a track head 133 and a track tail 134. It is only necessary to set the distance between the track heads 133 and the distance between the track tails 134 as required, and the worm pitch-changing module can change the spacing of the items carried thereon. For example, if a product needs to be transported from point A with a spacing of 10mm to point B with a spacing of 20mm, it is only necessary to set the distance between the track heads 133 to 10mm, the distance between the track tails 134 to 20mm, and at the same time set the overall running distance of the pitch-changing module to A to B, so that the product can be transported from A to B with a variable spacing, and vice versa. With the further deepening of intelligentization and automation of production, the requirements for the accuracy of product spacing are becoming higher and higher. For example, spiral tracks 132 with different spacings can be set to realize the transportation of products with different spacings. It is very flexible, convenient and easy to set.
[0048] Optionally, a worm limit end 131 is provided at one end of the worm 13 away from the motor 11. When the worm 13 rotates, the worm limit end 131 rotates synchronously with the worm 13, wherein the rightmost slide 12 is the slide 12 closest to the worm limit end 131 among all the slides 12.
[0049] Optionally, the worm limiting end 131 is integrally formed with the worm 13, so that the transmission is more reliable.
[0050] For further information, see Figure 3 The limiting block 14 includes at least one limiting column 141 , and the limiting column 141 is sleeved in the limiting block 14 .
[0051] Optionally, the limiting block 14 is provided with a limiting hole 142 for installing a limiting column 141 .
[0052] Optionally, in order to accommodate different sizes of limit columns 141 and facilitate disassembly and adjustment of the position of the limit column 141, a limit groove is provided on at least one side of the limit hole 142. When the limit column 141 is sleeved in the limit hole 142, the limit hole 142 can be fastened by passing a thread through the limit groove. In this way, the limit column 141 can adjust its position in the left and right directions of the limit column 141 as needed, and indirectly adjust the position of the first preset position, so as to adapt to more usage requirements.
[0053] Optionally, the material of the limiting block 14 is metal, and the material of the limiting column 141 is non-metallic material.
[0054] Preferably, the material of the limiting block 14 is aluminum, and the material of the limiting column 141 is elastomeric rubber.
[0055] Optionally, for the accuracy and stability of the limiting, two limiting posts 141 are provided.
[0056] Optionally, the motor 11 rotates, driving the worm 13 to rotate, and the worm 13 drives the slide 12 to move along the spiral track 132 and the support rod 102 , and the rightmost slide 12 moves to the first preset position and abuts against the limit column 141 .
[0057] Optional, see Figure 4 A positioning column 121 is provided on one side of the slide 12 close to the worm 13 , and a guide column 122 is provided on one end of the positioning column 121 close to the worm 13 . The slide 12 can move along the corresponding spiral track 132 through the guide column 122 .
[0058] Optionally, the guide column 122 is made of metal.
[0059] Optionally, the motor 11 rotates to drive the worm 13 to rotate, and the slide 12 moves along the corresponding spiral track 132 through the guide column 122 .
[0060] In one embodiment, when the motor 11 rotates clockwise, it drives the worm 13 to rotate clockwise, and the worm 13 drives the slide 12 to move along the spiral track 132 toward the tail 134 of the track. When the rightmost slide 12 reaches the first preset position, the rightmost slide 12 collides with the limit column 141. At this time, it is only necessary to set that when the rightmost slide 12 collides with the limit column 141, the guide column 122 cannot reach the tail 134 of the track, and the guide column 122 will not collide with the tail 134 of the track.
[0061] Optionally, since all slides 12 will move synchronously, only one guide post 122 needs to be set so as not to reach the track tail 134 , and then all guide posts 122 will not reach the corresponding track tail 134 .
[0062] Optionally, a stopper 15 is provided on at least one side of at least one slide 12 .
[0063] In one embodiment, blocks 15 are provided on both sides of all slides 12. When the motor 11 rotates counterclockwise, the worm 13 is driven to rotate counterclockwise, and the worm 13 drives the slide 12 to move along the spiral track 132 toward the track head 133. When the rightmost slide 12 reaches the second preset position, the block 15 on the slide 12 collides with the block 15 on the adjacent slide 12. At this time, it is only necessary to set the block 15 on the slide 12 to collide with the block 15 on the adjacent slide 12, so that the guide column 122 cannot reach the track head 133, and the guide column 122 will not collide with the track head 133.
[0064] Optionally, since all slides 12 will move synchronously, only one guide post 122 needs to be set so that it cannot reach the rail head 133 , and then all guide posts 122 will not reach the corresponding rail head 133 .
[0065] In another embodiment, a stopper 15 is provided on one side of all slides 12. When the motor 11 rotates counterclockwise, the worm 13 is driven to rotate counterclockwise, and the worm 13 drives the slide 12 to move along the spiral track 132 toward the track head 133. When the rightmost slide 12 reaches the second preset position, the stopper 15 on the slide 12 collides with the adjacent slide 12. At this time, it is only necessary to set the stopper 15 on the slide 12 to collide with the adjacent slide 12, so that the guide column 122 cannot reach the track head 133, and the guide column 122 will not collide with the track head 133.
[0066] In the third embodiment, only the rightmost slide 12 is provided with blocks 15 on both sides. When the motor 11 rotates counterclockwise, it drives the worm 13 to rotate counterclockwise, and the worm 13 drives the slide 12 to move along the spiral track 132 toward the track head 133. When the rightmost slide 12 reaches the second preset position, the block 15 on the rightmost slide 12 collides with the adjacent slide 12. At this time, since all the slides 12 move synchronously along the spiral track 132, it is only necessary to set the block 15 on the rightmost slide 12 to collide with the adjacent slide 12, so that all the guide posts 122 cannot reach the track head 133, and the guide posts 122 will not collide with the track head 133.
[0067] Optionally, the positions of the stopper 15 and the limiting column 141 do not interfere with each other.
[0068] Optionally, the stopper 15 is made of flexible material.
[0069] Preferably, the material of the stopper 15 is elastomeric rubber.
[0070] Optionally, since the guide column 122 cannot contact the rail head 133 and the rail tail 134 during operation, when setting, the length of the spiral rail 132 needs to have sufficient margin. At the same time, the distance between the rail heads 133 and the distance between the rail tails 134 also need to have a design margin, that is, the distance between the rail heads 133 needs to be smaller than the actual requirement, and the distance between the rail tails 134 needs to be larger than the actual requirement.
[0071] The utility model sets an end cover 101 at the end of the housing 10 away from the motor 11, and sets a limit block 14 above the end cover 101. The limit block 14 includes at least one limit column 141. When the motor 11 rotates clockwise, the worm 13 is driven to rotate clockwise, and the worm 13 drives the slide 12 to move along the spiral track 132 toward the track tail 134. When the rightmost slide 12 reaches the first preset position, the slide 12 conflicts with the limit column 141, and the guide column 122 cannot reach the track tail 134, so the guide column 122 will not collide with the track tail 134.
[0072] The utility model sets a stopper 15 on the slide 12. When the motor 11 rotates counterclockwise, it drives the worm 13 to rotate counterclockwise. The worm 13 drives the slide 12 to move along the spiral track 132 toward the track head 133. When the rightmost slide 12 reaches the second preset position, the stopper 15 on the slide 12 collides with the adjacent slide 12 or the stopper 15 of the adjacent slide 12. The guide column 122 cannot reach the track head 133, and the guide column 122 will not collide with the track head 133.
[0073] The utility model prolongs the service life of the worm 13 and the guide column 122, has the characteristics of simple structure, stable operation, and effective avoidance of collision between the end of the guide column 122 and the spiral track 132, can effectively prolong the service life of the worm pitch change module, and reduce the maintenance cost of the worm torque change module.
[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
[0075] In the description of this specification, the description with reference to the terms "one embodiment", "another embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.
[0076] Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
[0077] The further embodiments of the utility model disclosed above are only used to help explain the utility model. The further embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model.
Claims
1. A worm pitch-changing module with an adjustable limit mechanism, comprising a worm (13) and a plurality of slides (12) arranged above the worm (13), characterized in that: The invention also comprises a limit block (14), wherein the limit block (14) comprises at least one limit column (141), and the worm (13) rotates clockwise to drive the slide (12) to move along a spiral track (132) provided on the worm (13), and the rightmost slide (12) moves to a first preset position and contacts the limit column (141).
2. A worm pitch-changing module with an adjustable limit mechanism according to claim 1, characterized in that: It also includes an end cover (101) arranged on the right side of the worm (13); the worm (13) can rotate relative to the end cover (101); and the limit block (14) is arranged above the end cover (101).
3. A worm pitch-changing module with an adjustable limit mechanism according to claim 2, characterized in that: The limiting column (141) is sleeved in the limiting block (14).
4. A worm pitch-changing module with an adjustable limit mechanism according to claim 3, characterized in that: The material of the limiting column (141) is non-metallic material.
5. The worm pitch-changing module with an adjustable limit mechanism according to claim 4, characterized in that: The material of the limiting column (141) is PU.
6. The worm pitch-changing module with an adjustable limit mechanism according to claim 5, characterized in that: There are two limiting columns (141).
7. The worm pitch-changing module with an adjustable limit mechanism according to claim 1, characterized in that: At least one of the slides (12) is also provided with a stopper (15).
8. The worm pitch-changing module with an adjustable limit mechanism according to claim 7, characterized in that: The worm (13) rotates counterclockwise to drive the slide (12) to move along the spiral track (132). When the rightmost slide (12) reaches the second preset position, the stopper (15) on the slide (12) abuts against the adjacent slide (12).
9. The worm pitch-changing module with an adjustable limit mechanism according to claim 8, characterized in that: The material of the stopper (15) is elastomeric rubber.
10. The worm pitch-changing module with an adjustable limit mechanism according to claim 1, characterized in that: The slide (12) is provided with a positioning column (121), and one end of the positioning column (121) close to the worm (13) is provided with a guide column (122). The slide (12) can move along a spiral track (132) provided on the worm (13) via the guide column (122).