High-stability pulley

Abstract

The utility model relates to the technical field of mechanical engineering, and discloses a high-stability pulley which comprises an expansion assembly, an expansion piece, three clamping plates, three hinged plates, a supporting ring and a threaded rod, the three hinged plates are all arranged on the outer sides of the clamping plates in a sleeving mode, the three clamping plates are all arranged on the inner walls of the hinged plates, the hinged plates are hinged to one ends of the clamping plates, and the supporting ring is arranged on the other ends of the clamping plates. The supporting ring is arranged on the inner wall of the hinge plate, the hinge plate is hinged to one end of the supporting ring, and the threaded rod is arranged at one end of the supporting ring; and the moving assembly is arranged on one side of the clamping plate and comprises a moving part which comprises two moving plates, two moving strips, a moving rod, a hinge strip and a driving plate, and the two moving strips are both arranged at the bottom of the moving plates. The pulley frame has the advantages that pulleys of different sizes and the frame can be installed, different application scenes have different requirements for equipment, and the equipment can better adapt to various special environments and task requirements by installing the pulleys of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, in particular to a high-stability pulley. Background Art

[0002] A pulley is a simple machine consisting of a grooved disc that can rotate around a central axis and a flexible cable that crosses the disc. In order to enhance the stability of the pulley, a more robust support structure is usually set in the pulley, including thick spokes, a reinforced hub and a stable bearing system, which can withstand large loads without deformation or damage. The pulley is usually fixed to the frame, and the frame provides a stable installation base for the pulley to ensure that the pulley will not be displaced or deformed when subjected to various forces. Pulleys vary in size and shape and cannot be adapted to different frames. Pulleys of different specifications differ in size, shape, quality, etc., which may lead to different fit accuracy with the frame. Pulleys that do not fit tightly may shake, jump, etc., affecting the smooth operation and accuracy of the equipment. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the above problems and / or the problems existing in the existing high-stability pulleys, the present utility model is proposed.

[0005] Therefore, the problem to be solved by the present invention is that different pulleys cannot be adapted to different frames.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a high-stability pulley, comprising an expansion assembly, an expansion piece, a splint, a hinged plate, a support ring and a threaded rod, wherein the number of the hinged plates is three and each is sleeved on the outer side of the splint, the number of the splints is three and each is arranged on the inner wall of the hinged plate, the hinged plate is hinged to one end of the splint, the support ring is arranged on the inner wall of the hinged plate, the hinged plate is hinged to one end of the support ring, and the threaded rod is arranged at one end of the support ring;

[0007] The moving assembly is arranged on one side of the splint, and includes a moving part, including a moving plate, a moving bar, a moving rod, a hinge bar and a driving plate. There are two moving bars, both of which are arranged at the bottom of the moving plate, there are two moving plates, both of which are arranged at the top of the moving bar, there are four moving rods, both of which are hinged at the top of the moving bar, there are four hinge bars, both of which are hinged at the bottom of the moving rod, and there are two driving plates, both of which are hinged at the bottom of the hinge bar.

[0008] As a preferred solution of the high-stability pulley described in the utility model, a positioning ring is provided on the outside of the threaded rod, and three first hinge blocks are provided on the outside of the positioning ring. The other end of the first hinge block is hinged to one end of the splint.

[0009] As a preferred solution of the high-stability pulley described in the utility model, a second hinge block is provided at the bottom of each of the first hinge blocks, one end of the second hinge block is hinged to one end of the positioning ring, and the other end is hinged to one end of the splint.

[0010] As a preferred solution of the high-stability pulley of the utility model, one end of the threaded rod is provided with a rotating ring, and one side of the positioning ring is provided with a driving plate.

[0011] As a preferred solution of the high-stability pulley described in the utility model, wherein: a fixed plate is provided at the bottom of the movable plate, the movable plate slides on the top of the fixed plate, a fixed block is provided on the top of the fixed plate, three driving bars are inserted into the inner wall of the fixed block, a rack is provided on one side of the driving bar, and a gear is provided on one side of the rack.

[0012] As a preferred solution of the high-stability pulley described in the utility model, a limit bar is provided on one side of the gear, a support frame is provided on the outside of the limit bar, a stop block is provided at one end of the limit bar, a driving shaft is provided at one end of the stop block, and a spring is provided on the outside of the driving shaft.

[0013] As a preferred solution of the high-stability pulley of the utility model, one end of the driving bar is provided with a pushing plate, and the pushing plate is hinged to one end of the moving plate.

[0014] As a preferred solution of the high-stability pulley of the utility model, wherein: a connecting rod is provided at the bottom of the moving rod, a support rod is provided at the bottom of the connecting rod, the support rod is movably connected to the connecting rod, and the connecting rod is hinged to one end of the moving rod.

[0015] As a preferred solution of the high-stability pulley of the utility model, two driving rods are provided at one end of the driving plate, and the driving rods are located on the inner wall of the fixed plate and slide.

[0016] As a preferred solution of the high-stability pulley of the utility model, it further includes a main body component, including a pulley, and the pulley is sleeved on the outside of the splint.

[0017] The beneficial effects of the utility model are: pulleys and frames of different sizes can be installed, and different application scenarios have different requirements for equipment. By being able to install pulleys of different sizes, the equipment can better adapt to various special environments and task requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 inventive work. Among them:

[0019] Figure 1 This is the overall structure diagram of the high stability pulley.

[0020] Figure 2 Diagram of the threaded rod structure of a high-stability pulley.

[0021] Figure 3 For high stability pulley Figure 2 A partial enlarged structural diagram of point A in the middle.

[0022] Figure 4 Diagram of the splint structure of a high-stability pulley.

[0023] Figure 5 Diagram of the drive rod structure of the high-stability pulley.

[0024] Figure 6 Diagram of the hinge bar structure of a high-stability pulley. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1

[0029] Reference Figures 1-6 , which is the first embodiment of the present invention, provides a high-stability pulley. The high-stability pulley includes a main body component 100, an expansion component 200 and a moving component 300. The three can cooperate to install pulleys and frames of different sizes.

[0030] Specifically, the expansion assembly 200 includes an expansion piece 201, including a splint 201a, a hinged plate 201b, a support ring 201c and a threaded rod 201d. There are three hinged plates 201b, all of which are mounted on the outside of the splint 201a. There are three splints 201a, all of which are arranged on the inner wall of the hinged plate 201b. The hinged plate 201b is hinged to one end of the splint 201a. The support ring 201c is arranged on the inner wall of the hinged plate 201b. The hinged plate 201b is hinged to one end of the support ring 201c. The threaded rod 201d is arranged at one end of the support ring 201c.

[0031] By moving the threaded rod 201d, the threaded rod 201d moves to squeeze the support ring 201c, and the movement of the support ring 201c drives the three hinged plates 201b to move simultaneously. The movement of the hinged plate 201b drives the clamping plate 201a to move, and the movement of the hinged plate 201b can make the clamping plate 201a expand.

[0032] Specifically, the moving assembly 300 is arranged on one side of the splint 201a, and includes a moving part 301, including a moving plate 301a, a moving bar 301b, a moving rod 301c, a hinge bar 301d and a driving plate 301e. There are two moving bars 301b, both of which are arranged at the bottom of the moving plate 301a, there are two moving plates 301a, both of which are arranged at the top of the moving bar 301b, there are four moving rods 301c, both of which are hinged at the top of the moving bar 301b, there are four hinged bars 301d, both of which are hinged at the bottom of the moving rod 301c, and there are two driving plates 301e, both of which are hinged at the bottom of the hinge bar 301d.

[0033] By moving the movable plate 301a, the movable plate 301a drives the movable bar 301b to move, the movable bar 301b drives the movable rod 301c to move, the movable rod 301c drives the hinge bar 301d to move, the hinge bar 301d drives the driving plate 301e to move, and the driving plate 301e drives the positioning ring 202a to move.

[0034] Example 2

[0035] Reference Figures 1-6 , which is the second embodiment of the present utility model, and this embodiment is based on the previous embodiment.

[0036] Specifically, a positioning ring 202a is sleeved on the outside of the threaded rod 201d, and three first hinge blocks 202b are sleeved on the outside of the positioning ring 202a. The other end of the first hinge block 202b is hinged to one end of the clamping plate 201a.

[0037] The positioning ring 202a is used to support the threaded rod 201d, and the first hinge block 202b is used to support the clamping plate 201a. A driving block corresponding to the threaded rod 201d is provided on the inner wall of the positioning ring 202a. When the threaded rod 201d moves, the thread groove will be driven to slide in the driving block, squeezing the thread groove, thereby enabling the threaded rod 201d to move.

[0038] Specifically, a second hinge block 202c is provided at the bottom of each first hinge block 202b. One end of the second hinge block 202c is hinged to one end of the positioning ring 202a, and the other end is hinged to one end of the clamping plate 201a.

[0039] By moving the threaded rod 201d, the threaded rod 201d moves to squeeze the support ring 201c, and the movement of the support ring 201c drives the three hinged plates 201b to move simultaneously. The movement of the hinged plate 201b drives the splint 201a to move. The movement of the hinged plate 201b drives the first hinge block 202b and the second hinge block 202c to move. By moving the hinged plate 201b, the first hinge block 202b and the second hinge block 202c, the splint 201a can be expanded.

[0040] Specifically, a rotating ring 202d is provided at one end of the threaded rod 201d, and a driving plate 301e is provided at one side of the positioning ring 202a.

[0041] The driving plate 301e is used to support the positioning ring 202a, and by rotating the rotating ring 202d, the rotating ring 202d drives the threaded rod 201d to rotate.

[0042] Specifically, a fixed plate 302a is provided at the bottom of the movable plate 301a, and the movable plate 301a slides on the top of the fixed plate 302a. A fixed block 302b is provided on the top of the fixed plate 302a. Three driving bars 302c are inserted into the inner wall of the fixed block 302b. A rack 302d is provided on one side of the driving bar 302c, and a gear 302e is provided on one side of the rack 302d.

[0043] Only one side of the driving bar 302c is provided with a rack 302d, and a support column is provided at the bottom of the gear 302e. The support column is fixed to the top of the fixing plate 302a for supporting the gear 302e.

[0044] The fixed plate 302a is used to support the movable plate 301a, and the fixed block 302b is used to support the driving bar 302c. By moving the three driving bars 302c, the driving bar 302c moves and drives the rack 302d to move. The rack 302d moves and engages with the gear 302e. The rack 302d moves and drives the gear 302e to rotate.

[0045] Specifically, a limit bar 302f is provided on one side of the gear 302e, a support frame 302g is provided on the outside of the limit bar 302f, a stopper 302h is provided on one end of the limit bar 302f, a driving shaft 302i is provided on one end of the stopper 302h, and a spring 302j is provided on the outside of the driving shaft 302i.

[0046] A placement block is sleeved on the outside of the pushing shaft 302i, which is used to support the pushing shaft 302i. A support frame is provided at the bottom of the placement block to support the placement block. One end of the spring 302j is fixed to one end of the placement block, and the other end is fixed to one end of the stop block 302h.

[0047] When the driving bar 302c needs to be moved, the limit on the gear 302e is first released, and the pushing shaft 302i is pulled. The pushing shaft 302i pulls the block 302h, and the block 302h squeezes the spring 302j. The movement of the block 302h drives the limit bar 302f to move. The limit bar 302f moves to separate from the tooth groove in the gear 302e, so that the driving bar 302c can be moved. After the driving bar 302c moves to the desired position, the pushing shaft 302i is released, and the limit bar 302f is re-engaged with the gear 302e through the rebound of the spring 302j, thereby completing the limit.

[0048] Example 3

[0049] Reference Figure 5-Figure 6 , which is the third embodiment of the present utility model, and is based on the first two embodiments.

[0050] Specifically, a push plate 302k is provided at one end of the driving bar 302c, and the push plate 302k is hinged to one end of the moving plate 301a.

[0051] By moving the driving bar 302c, the driving bar 302c presses the pushing plate 302k, and the pushing plate 302k moves to drive the moving plate 301a to slide on the fixed plate 302a.

[0052] Specifically, a connecting rod 3021 is provided at the bottom of the moving rod 301c, a supporting rod 302m is provided at the bottom of the connecting rod 3021, the supporting rod 302m is movably connected to the connecting rod 3021, and the connecting rod 3021 is hinged to one end of the moving rod 301c.

[0053] The support rod 302m is used to support the connecting rod 302l.

[0054] The movement of the moving bar 301b drives the moving rod 301c to move, and the movement of the moving rod 301c also drives the connecting rod 302l to move.

[0055] Specifically, two driving rods 302n are provided at one end of the driving plate 301e, and the driving rods 302n are located on the inner wall of the fixing plate 302a and slide.

[0056] The driving rod 302n is used to support the driving plate 301e. The movement of the driving plate 301e will drive the driving rod 302n to move on the inner wall of the fixed plate 302a.

[0057] Specifically, it also includes a main body component 100, including a pulley 101, and the pulley 101 is sleeved on the outside of the clamping plate 201a.

[0058] A rotating ring is provided inside the pulley 101 , and the pulley 101 and the rotating ring are rotatably connected via a bearing. By fixing the rotating ring, the pulley 101 can be fixed.

[0059] In many practical application scenarios, the direction of force applied can be changed by using the pulley 101 to better adapt to the working environment and operation requirements.

[0060] When in use, first release the limit on gear 302e, by pulling the pushing shaft 302i, the pushing shaft 302i pulls the stopper 302h, the stopper 302h squeezes the spring 302j, the stopper 302h moves and drives the limit bar 302f to move, and the limit bar 302f moves to separate from the tooth groove in the gear 302e, and then push the pushing plate 302k, the pushing plate 302k moves and drives the driving bar 302c to move, the driving bar 302c moves and drives the rack 302d to move, the rack 302d moves and engages with the gear 302e, and the rack 302d moves and drives the gear 302e to rotate, and the movement of the pushing plate 302k drives the moving plate 301a to be fixed The plate 302a slides, and the moving plate 301a moves, driving the moving bar 301b to move, and the moving bar 301b moves, driving the moving rod 301c to move, and the moving rod 301c moves, driving the connecting rod 302l to move, and the moving rod 301c also drives the hinged bar 301d to move, and the hinged bar 301d moves, driving the driving plate 301e to move, and the driving plate 301e moves, driving the driving rod 302n to move on the inner wall of the fixed plate 302a, and the driving plate 301e moves, driving the positioning ring 202a to move. After moving to the desired position, by releasing the pull on the pushing shaft 302i, the limit bar 302f and the gear 302e are re-engaged by the rebound force of the spring 302j to complete the limit.

[0061] When it is necessary to tighten the rotating rings on the inner walls of pulleys of different sizes, the rotating ring 202d is rotated, and the rotating ring 202d drives the threaded rod 201d to rotate. The threaded rod 201d moves to squeeze the support ring 201c. The support ring 201c moves and drives the three hinged plates 201b to move at the same time. The movement of the hinged plate 201b drives the splint 201a to move. The movement of the hinged plate 201b drives the first hinge block 202b and the second hinge block 202c to move. Through the movement of the hinged plate 201b, the first hinge block 202b and the second hinge block 202c, the splint 201a can be moved to fit the inner wall of the pulley. The movement of the splint 201a can adapt to different pulleys.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A high stability pulley, characterized by: include, An expansion assembly (200) comprises an expansion member (201), comprising a splint (201a), a hinged plate (201b), a support ring (201c) and a threaded rod (201d), wherein the number of the hinged plates (201b) is three and all are sleeved on the outside of the splint (201a), the number of the splints (201a) is three and all are arranged on the inner wall of the hinged plate (201b), the hinged plate (201b) is hinged to one end of the splint (201a), the support ring (201c) is arranged on the inner wall of the hinged plate (201b), the hinged plate (201b) is hinged to one end of the support ring (201c), and the threaded rod (201d) is arranged on one end of the support ring (201c); The moving assembly (300) is arranged on one side of the splint (201a), and includes a moving part (301), including a moving plate (301a), a moving bar (301b), a moving rod (301c), a hinge bar (301d) and a driving plate (301e). The number of the moving bars (301b) is two, and both are arranged at the bottom of the moving plate (301a). The number of the moving plates (301a) is two, and both are arranged at the top of the moving bar (301b). The number of the moving rods (301c) is four, and both are arranged at the top of the moving bar (301b) and are hinged. The number of the hinge bars (301d) is four, and both are arranged at the bottom of the moving rod (301c) and are hinged. The number of the driving plates (301e) is two, and both are arranged at the bottom of the hinge bar (301d) and are hinged.

2. The high stability pulley according to claim 1, characterized in that: A positioning ring (202a) is sleeved on the outside of the threaded rod (201d), and three first hinge blocks (202b) are sleeved on the outside of each positioning ring (202a). The other end of the first hinge block (202b) is hingedly arranged on one end of the clamping plate (201a).

3. The high stability pulley according to claim 2, wherein: A second hinge block (202c) is provided at the bottom of each of the first hinge blocks (202b); one end of the second hinge block (202c) is hinged to one end of the positioning ring (202a), and the other end is hinged to one end of the splint (201a).

4. The high stability pulley according to claim 3, wherein: A rotating ring (202d) is provided at one end of the threaded rod (201d), and a driving plate (301e) is provided at one side of the positioning ring (202a).

5. The high stability pulley according to claim 4, characterized in that: A fixed plate (302a) is provided at the bottom of the movable plate (301a), the movable plate (301a) is located on the top of the fixed plate (302a) and slides, a fixed block (302b) is provided on the top of the fixed plate (302a), three driving bars (302c) are plugged into the inner wall of each of the fixed blocks (302b), a rack (302d) is provided on one side of the driving bar (302c), and a gear (302e) is provided on one side of the rack (302d).

6. The high stability pulley according to claim 5, characterized in that: A limit bar (302f) is provided on one side of the gear (302e), a support frame (302g) is sleeved on the outside of the limit bar (302f), a stopper (302h) is provided on one end of the limit bar (302f), a driving shaft (302i) is provided on one end of the stopper (302h), and a spring (302j) is sleeved on the outside of the driving shaft (302i).

7. The high stability pulley according to claim 6, characterized in that: A push plate (302k) is provided at one end of the driving bar (302c), and the push plate (302k) is hinged to one end of the moving plate (301a).

8. The high stability pulley according to claim 7, wherein: The bottom of each movable rod (301c) is provided with a connecting rod (302l), the bottom of each connecting rod (302l) is provided with a supporting rod (302m), the supporting rod (302m) is movably connected to the connecting rod (302l), and the connecting rod (302l) is hinged to one end of the movable rod (301c).

9. The high stability pulley according to claim 8, characterized in that: Two driving rods (302n) are provided at one end of the driving plate (301e), and the driving rods (302n) are located on the inner wall of the fixing plate (302a) and slide.

10. The high stability pulley according to claim 9, characterized in that: It also includes a main body component (100), including a pulley (101), and the pulley (101) is sleeved on the outside of the clamping plate (201a).

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