Anti-rotation guide structure of electric cylinder

Abstract

The utility model discloses an anti-rotation guide structure of an electric cylinder, and relates to the technical field of electric cylinders. The guide structure for preventing the electric cylinder from rotating comprises a limiting plate, four sets of embedding grooves are formed in the outer portion of the limiting plate and arranged in a rectangular array, two sets of supporting shafts are embedded in the embedding grooves and symmetrically arranged, the opposite sides of the supporting shafts are fixedly connected with a rotating disc, and the rotating disc is fixedly connected with the limiting plate. The outer portion of the rotating disc is rotationally connected with multiple sets of wheel pieces, the multiple sets of wheel pieces are arranged outside the rotating disc in a circumferential array mode and limited by the limiting plate and the rotating disc, the limiting plate and the telescopic sleeve linearly slide in the positioning shell and cannot rotate along with rotation of the limiting plate, and when the limiting plate is limited to rotate, the wheel pieces slide in the positioning shell, so that the limiting plate and the telescopic sleeve can rotate. The friction force during sliding is reduced, the smooth sliding effect is achieved, the problem that abrasion is large during moving due to the fact that only a special-shaped structure is adopted for sliding is solved, and the friction force is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric cylinders, in particular to a guide structure for preventing an electric cylinder from rotating. Background Art

[0002] Electric cylinders are products designed for continuous motion, low to high loads (usually high speeds), and can be cycled many times over their service life. These products have extremely high positioning accuracy and controllability, and can achieve precise motion control under loads from several kilograms to 50 tons.

[0003] According to Chinese patent publication number CN218648685U, an electric cylinder with an anti-rotation guide structure includes a cylinder body, a power compartment is fixedly installed on one side of the cylinder body, a cover plate is fixedly installed on the other side of the cylinder body, and a motor is fixedly installed on one side of the power compartment. The utility model achieves the purpose of good anti-rotation guide effect by setting a limit rod, a guide block and a cover plate, etc. The start motor drives the transmission shaft to rotate, and the transmission column is driven to rotate through the transmission belt. The cylinder body limits the transmission column, the guide block is limited by the limit rod, and the guide block is guided by the limit rod at the same time. Four sliding blocks slide inside the limit groove respectively. Since the sliding block is made of silicone material, the toughness of the sliding block is increased, and the friction with the inner wall of the cylinder body is reduced. The guide block is limited by four limit rods to avoid rotation guide during the movement of the guide block, so that the purpose of good anti-rotation guide effect is achieved.

[0004] With the restriction of the above scheme, when the electric cylinder slides, the friction is large, which causes wear and tear after long-term use. After a period of use, the entire cylinder needs to be replaced, resulting in a high replacement cost. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a guide structure for preventing rotation of an electric cylinder, which solves the problem that when the electric cylinder slides, the friction is large, resulting in wear due to long-term use, and the entire cylinder needs to be replaced after a period of use, resulting in high replacement costs.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a guide structure for preventing an electric cylinder from rotating, including a limit plate, an embedding groove is opened on the outside of the limit plate, and there are four groups of embedding grooves arranged in a rectangular array. Support shafts are embedded in the embedding grooves, and there are two groups of support shafts arranged symmetrically. A rotating disk is fixedly connected to the opposite side of the support shaft, and a wheel piece is rotatably connected to the outside of the rotating disk. There are multiple groups of wheel pieces in a circular array outside the rotating disk.

[0007] Preferably, a telescopic slot is provided at a position of the engaging slot close to the supporting shaft, a spring is fixedly connected inside the telescopic slot, and one end of the spring away from the telescopic slot is fixedly connected to a limiting block.

[0008] Preferably, the limiting block is arranged with a rounded corner at one end away from the spring, one end of the limiting plate is fixedly connected to a telescopic sleeve, and a screw is rotatably connected inside the telescopic sleeve.

[0009] Preferably, a positioning shell is disposed outside the limiting plate, one end of the positioning shell away from the telescopic sleeve is fixedly connected to a motor, and the screw is fixedly connected to an output end of the motor.

[0010] Preferably, the telescopic sleeve and the screw are arranged inside the positioning shell, one end of the telescopic sleeve away from the screw is fixedly connected to a connector, and a sealing component is arranged outside the telescopic sleeve near the connector.

[0011] Preferably, the sealing assembly comprises a sealing cover, the sealing cover abuts against an end of the positioning shell away from the motor, the sealing cover and the positioning shell are rotatably connected with bolts, and there are four groups of bolts arranged in a rectangular array.

[0012] The utility model provides a guide structure for preventing an electric cylinder from rotating. Compared with the prior art, it has the following beneficial effects:

[0013] 1. The anti-rotation guide structure of the electric cylinder is limited by the limit plate and the rotating disk, so that the limit plate and the telescopic sleeve can slide linearly inside the positioning shell and will not rotate with the rotation of the limit plate. When the wheel piece limits the rotation of the limit plate, it slides inside the positioning shell through the wheel piece, reducing the friction during sliding and achieving a smooth sliding effect. This solves the problem of large wear during movement caused by sliding only with special-shaped structures and reduces friction.

[0014] 2. The anti-rotation guide structure of the electric cylinder pushes the limit block inside the telescopic slot to contact the support shaft through the spring, so that the limit block limits the position of the support shaft. This solves the problem of loose installation difficulty during replacement due to wear caused by long-term movement when only using wheel sets, and improves the convenience of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the positioning shell of the utility model;

[0017] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4This is a schematic diagram of the cross-sectional structure of the limiting plate of the utility model;

[0019] Figure 5 For this utility model Figure 4 Enlarged structural diagram at B in the middle.

[0020] In the figure: 1. mounting plate; 2. connecting rod; 3. rotating groove; 4. rotating shaft; 5. fixed wheel; 6. rubber sleeve; 7. rotating rod; 8. rubber sheet; 9. positioning block; 10. fixing sleeve; 11. fitting block; 12. moving plate; 13. engaging groove; 14. threaded groove. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-Figure 5 The utility model provides a technical solution: a guide structure for preventing an electric cylinder from rotating, comprising a limit plate 1, an engaging groove 2 is provided on the outside of the limit plate 1, and the engaging groove 2 has four groups arranged in a rectangular array, a support shaft 3 is engaged inside the engaging groove 2, and the support shaft 3 has two groups arranged symmetrically, a rotating disk 4 is fixedly connected to the opposite side of the support shaft 3, and a wheel piece 5 is rotatably connected to the outside of the rotating disk 4, and the wheel piece 5 has multiple groups arranged in a circular array on the outside of the rotating disk 4, a telescopic groove 7 is provided near the support shaft 3 of the engaging groove 2, a spring 6 is fixedly connected inside the telescopic groove 7, and a limiting block 8 is fixedly connected to the end of the spring 6 away from the telescopic groove 7.

[0023] During operation, when the limit plate 1 slides, the support shaft 3 and the rotating disk 4 can rotate inside the fitting groove 2, thereby reducing friction, and the wheel piece 5 outside the rotating disk 4 can rotate laterally, which improves the smoothness of the movement of the limit plate 1. After long-term use, the rotating disk 4 and the wheel piece 5 will inevitably wear out. At this time, the rotating disk 4 can be replaced, and the rotating disk 4 and the support shaft 3 are taken out from the fitting groove 2, and then the new rotating disk 4 and the support shaft 3 are pressed into the fitting groove 2. The spring 6 inside the telescopic groove 7 pushes the limit block 8 to limit the support shaft 3, preventing the support shaft 3 at the bottom from slipping out of the fitting groove 2 during installation, thereby improving the convenience during installation.

[0024] The end of the limit block 8 away from the spring 6 is rounded, one end of the limit plate 1 is fixedly connected to a telescopic sleeve 10, the telescopic sleeve 10 is rotatably connected with a screw 9, a positioning shell 12 is arranged outside the limit plate 1, the end of the positioning shell 12 away from the telescopic sleeve 10 is fixedly connected to a motor 11, and the screw 9 is fixedly connected to the output end of the motor 11.

[0025] During operation, the motor 11 provides kinetic energy to the screw 9, allowing the screw 9 to rotate, driving the telescopic sleeve 10 and the limit plate 1 to slide outside the screw 9, and the telescopic sleeve 10 and the limit plate 1 slide inside the positioning shell 12 to ensure that the telescopic sleeve 10 will not rotate with the rotation of the screw 9, thus achieving a smooth telescopic effect.

[0026] The telescopic sleeve 10 and the screw 9 are arranged inside the positioning shell 12. The end of the telescopic sleeve 10 away from the screw 9 is fixedly connected to a connecting head 15. A sealing assembly is arranged outside the telescopic sleeve 10 near the connecting head 15. The sealing assembly includes a sealing cover 13. The sealing cover 13 abuts against the end of the positioning shell 12 away from the motor 11. The sealing cover 13 and the positioning shell 12 are rotatably connected with bolts 14. There are four groups of bolts 14 arranged in a rectangular array.

[0027] During operation, the telescopic structure to be installed can be connected to the telescopic sleeve 10 through the connecting head 15, and the telescopic sleeve 10 can be extended and retracted. When installing and replacing the support shaft 3 and the rotating disk 4, the bolt 14 can be rotated to remove the sealing cover 13 from one side of the positioning shell 12. At this time, the rotating limit plate 1 can be used to replace the support shaft 3 and the rotating disk 4 inside the interlocking groove 2 opened in the limit plate 1, thereby achieving a more convenient replacement effect.

[0028] When working or in use, when the limit plate 1 slides, the support shaft 3 and the rotating disk 4 can be rotated inside the fitting groove 2, thereby reducing friction, and the wheel piece 5 outside the rotating disk 4 can be rotated horizontally, which improves the smoothness of the movement of the limit plate 1. After long-term use, the rotating disk 4 and the wheel piece 5 will inevitably wear out. At this time, the rotating disk 4 can be replaced, and the rotating disk 4 and the support shaft 3 are taken out from the fitting groove 2, and then the new rotating disk 4 and the support shaft 3 are pressed into the fitting groove 2. The spring 6 inside the telescopic groove 7 pushes the limit block 8 to limit the support shaft 3 to prevent the support shaft 3 at the bottom from slipping out of the fitting groove 2 during installation, thereby improving the convenience during installation. The motor 11 provides kinetic energy to the screw Rod 9 allows the screw 9 to rotate, driving the telescopic sleeve 10 and the limit plate 1 to slide outside the screw 9, and the telescopic sleeve 10 and the limit plate 1 slide inside the positioning shell 12 to ensure that the telescopic sleeve 10 will not rotate with the rotation of the screw 9, thus achieving a smooth telescopic effect. The telescopic structure to be installed can be connected to the telescopic sleeve 10 through the connecting head 15, and the telescopic sleeve 10 can then be allowed to telescope. When installing and replacing the support shaft 3 and the rotating disk 4, the bolt 14 can be rotated to remove the sealing cover 13 from one side of the positioning shell 12. At this time, the limit plate 1 can be rotated to replace the support shaft 3 and the rotating disk 4 inside the interlocking groove 2 opened in the limit plate 1, thereby achieving a more convenient replacement effect.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0030] 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.

Claims

1. A guide structure for preventing an electric cylinder from rotating, comprising a limit plate (1), characterized in that: The limit plate (1) is provided with an engaging groove (2) on the outside, and the engaging grooves (2) are arranged in a rectangular array in total of four groups. Support shafts (3) are engaged inside the engaging grooves (2), and the support shafts (3) are arranged in a symmetrical shape in total of two groups. A rotating disk (4) is fixedly connected to the opposite side of the support shaft (3), and a wheel piece (5) is rotatably connected to the outside of the rotating disk (4). The wheel pieces (5) are arranged in a circular array on the outside of the rotating disk (4).

2. The guide structure for preventing electric cylinder from rotating according to claim 1, characterized in that: The engaging groove (2) is provided with a telescopic groove (7) near the supporting shaft (3), a spring (6) is fixedly connected inside the telescopic groove (7), and one end of the spring (6) away from the telescopic groove (7) is fixedly connected to a limiting block (8).

3. The guide structure for preventing electric cylinder from rotating according to claim 2, characterized in that: The end of the limit block (8) away from the spring (6) is rounded, one end of the limit plate (1) is fixedly connected to a telescopic sleeve (10), and a screw rod (9) is rotatably connected inside the telescopic sleeve (10).

4. The guide structure for preventing electric cylinder from rotating according to claim 3, characterized in that: A positioning shell (12) is disposed outside the limiting plate (1), and an end of the positioning shell (12) away from the telescopic sleeve (10) is fixedly connected to a motor (11), and the screw rod (9) is fixedly connected to an output end of the motor (11).

5. The guide structure for preventing electric cylinder from rotating according to claim 4, characterized in that: The telescopic sleeve (10) and the screw rod (9) are arranged inside the positioning shell (12); one end of the telescopic sleeve (10) away from the screw rod (9) is fixedly connected to a connector (15); and a sealing component is arranged outside the telescopic sleeve (10) close to the connector (15).

6. The guide structure for preventing electric cylinder from rotating according to claim 5, characterized in that: The sealing assembly comprises a sealing cover (13), the sealing cover (13) abutting against an end of the positioning shell (12) away from the motor (11), the sealing cover (13) and the positioning shell (12) being rotatably connected with bolts (14) inside, the bolts (14) being arranged in a rectangular array in a total of four groups.

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