Wear-resistant piston rod structure

Abstract

The utility model provides a wear-resistant piston rod structure, which relates to the technical field of piston rods and comprises a rod body, a piston block is fixedly mounted at one end of the rod body, a rubber ring is arranged on the piston block, a mounting block is fixedly mounted at the other end of the rod body, and a fixing block is fixedly mounted on the rod body. And a driving motor is arranged at the top end of the fixing block, a lead screw is fixedly installed at the output end of the driving motor, a threaded block is installed on the lead screw in a threaded mode, and a cleaning mechanism is arranged on the threaded block. By controlling the driving motor to operate, the rubber semi-ring can move to the end, close to the piston cylinder, of the rod body, the telescopic end of the micro telescopic air cylinder is controlled to drive the rubber semi-ring to be attached to the rod body, the driving motor is controlled to rotate reversely, the rubber semi-ring scrapes the surface of the rod body, and therefore dust on the surface of the rod body can be cleaned conveniently; abrasion of the rod body is reduced, and the abrasion-resistant degree is improved.

Description

Technical Field

[0001] This utility model relates to the field of piston rod technology, specifically a wear-resistant piston rod structure. Background Technology

[0002] The piston rod is a key component in actuators such as cylinders and hydraulic cylinders. It connects the piston to the external mechanical structure and plays an important role in transmitting force and motion.

[0003] A search of Chinese patent CN221591411U reveals a piston rod structure with a buffer function. A buffer seat is movably fitted into the buffer cavity under the pressure of a thrust spring. Oil overflow holes are evenly distributed at the rear of the buffer cavity. A piston rod limiting seat is located at the front of the piston rod, and a limiting buffer pad is located at the rear of the limiting seat. A buffer cavity is located on the inner rear side of the hydraulic cylinder. When the buffer seat is impacted by the piston rod, the hydraulic oil in the buffer cavity is compressed by the rearward movement, causing the oil to overflow from the oil overflow holes and flow back into the hydraulic cylinder cavity. The small diameter of the oil overflow holes provides a reverse buffering thrust to the buffer seat during the backflow, thus providing buffer protection for the piston rod. Furthermore, the piston rod limiting seat at the front of the piston rod provides secondary buffer protection through flexible contact. This dual protection effectively prevents damage to the cylinder due to impact.

[0004] Based on the above search and existing technology, it was found that the above patent has certain defects. When the piston rod extends, it may remain in the outside environment for a period of time due to working requirements, making the surface of the piston rod easy to get dusty. When the piston rod moves into the piston cylinder, the dust may block the piston rod and piston cylinder, thus causing damage and low wear resistance. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wear-resistant piston rod structure.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] An embodiment of this utility model provides a wear-resistant piston rod structure, including a rod body. A piston block is fixedly installed at one end of the rod body, and a rubber ring is provided on the piston block. An installation block is fixedly installed at the other end of the rod body, and a fixing block is fixedly installed on the rod body. A drive motor is provided at the top of the fixing block, and a lead screw is fixedly installed at the output end of the drive motor. A threaded block is threaded on the lead screw, and a cleaning mechanism is provided on the threaded block. The cleaning mechanism is used to clean dust from the surface of the rod body, and an oiling mechanism is provided on the drive motor.

[0008] Furthermore, the rubber ring is made of rubber.

[0009] Furthermore, the cleaning mechanism includes two brackets symmetrically fixedly installed on the threaded block, each bracket having a miniature telescopic cylinder fixedly installed at its end, and a rubber semi-ring fixedly installed on the telescopic end of the miniature telescopic cylinder.

[0010] Furthermore, the rubber semi-rings are made of rubber, and the combined size of the two rubber semi-rings is adapted to the rod body.

[0011] Furthermore, a long cover adapted to the threaded block is fixedly installed on the drive motor, and the long cover has a through hole.

[0012] Furthermore, the oil filling mechanism includes two fixed frames symmetrically fixed on the long cover, with an oil drum fixedly installed between the two fixed frames. An outlet shell is fixedly installed at the bottom of the oil drum, and a first spring is connected to the inner wall of the outlet shell. An actuating block adapted to the outlet shell is connected to the end of the first spring.

[0013] Furthermore, a second spring is connected to the threaded block, and a limit cap is connected to the end of the second spring.

[0014] The above-described solution of this utility model has at least the following beneficial effects:

[0015] 1. In this utility model, the drive motor is controlled to rotate, causing the lead screw to rotate and drive the threaded block to move. The threaded block, through the bracket and the miniature telescopic cylinder, drives the rubber half-ring to move, allowing the rubber half-ring to move to the end of the rod body close to the piston cylinder. The telescopic end of the miniature telescopic cylinder is controlled to drive the rubber half-ring to fit against the rod body. The drive motor is controlled to reverse, causing the rubber half-ring to scrape the surface of the rod body, thereby facilitating the cleaning of dust on the surface of the rod body, reducing wear on the rod body, and improving wear resistance.

[0016] 2. In this utility model, when the threaded block moves, it will squeeze against the contact block, squeezing the contact block to the inside of the inlet and outlet shell, so that the contact block no longer blocks the outlet shell, allowing the oil inside the oil tank to flow out through the outlet shell, and allowing the oil to flow through the threaded block to the lead screw, so as to ensure the normal transmission of the lead screw. Some oil drips onto the rod body through the threaded block, so as to promote the rubber half ring to scrape the rod body and improve the cleaning ability. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a wear-resistant piston rod structure according to the present invention;

[0018] Figure 2 This is a schematic diagram of the exploded structure of the piston block of a wear-resistant piston rod structure according to this utility model;

[0019] Figure 3 This is an exploded view of the long cover structure of a wear-resistant piston rod structure according to this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of a threaded block in a wear-resistant piston rod structure according to this utility model;

[0021] Figure 5 This is a cross-sectional view of an oil drum showing a wear-resistant piston rod structure according to the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Rod body; 2. Piston block; 3. Rubber ring; 4. Mounting block; 5. Fixing block; 6. Drive motor; 7. Lead screw; 8. Threaded block; 9. Bracket; 10. Miniature telescopic cylinder; 11. Rubber semi-ring; 12. Long cover; 13. Fixing frame; 14. Oil drum; 15. Outlet shell; 16. First spring; 17. Actuating block; 18. Second spring; 19. Limiting cover. Detailed Implementation

[0024] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0025] like Figures 1 to 5 As shown, an embodiment of this utility model provides a wear-resistant piston rod structure, including a rod body 1. A piston block 2 is fixedly installed at one end of the rod body 1, and a rubber ring 3 is fixedly provided on the piston block 2. An installation block 4 is fixedly installed at the other end of the rod body 1, and a fixing block 5 is fixedly installed on the rod body 1. A drive motor 6 is fixedly installed at the top of the fixing block 5, and a lead screw 7 is fixedly installed at the output end of the drive motor 6. A threaded block 8 is threadedly installed on the lead screw 7, and a cleaning mechanism is provided on the threaded block 8. The cleaning mechanism is used to clean the dust on the surface of the rod body 1. The rubber ring 3 is made of rubber. The cleaning mechanism includes two brackets 9 symmetrically fixedly installed on the threaded block 8. A miniature telescopic cylinder 10 is fixedly installed at the end of each bracket 9. A rubber semi-ring 11 is fixedly installed on the telescopic end of the miniature telescopic cylinder 10. The rubber semi-ring 11 is made of rubber, and the combined size of the two rubber semi-rings 11 is adapted to the rod body 1.

[0026] In this embodiment of the utility model, the operator controls the drive motor 6 to operate, causing the output end of the drive motor 6 to rotate, which in turn drives the lead screw 7 to rotate. The rotation of the lead screw 7, through the thread action, drives the threaded block 8 to move. The threaded block 8, through the bracket 9 and the miniature telescopic cylinder 10, drives the rubber half-ring 11 to move, allowing the rubber half-ring 11 to move to the end of the rod 1 close to the piston cylinder. The telescopic end of the miniature telescopic cylinder 10 is controlled to drive the rubber half-ring 11 to fit against the rod 1. The drive motor 6 is then controlled to reverse, causing the two rubber half-rings 11 to return along the original path. This causes the rubber half-rings 11 to scrape the surface of the rod 1, thereby facilitating the cleaning of dust from the surface of the rod 1, reducing wear on the rod 1, and improving its wear resistance.

[0027] Figures 1 to 5 As shown, a long cover 12 adapted to the threaded block 8 is fixedly installed on the drive motor 6. The long cover 12 has a through hole. The drive motor 6 is provided with an oiling mechanism. The oiling mechanism includes two fixing brackets 13 symmetrically fixed on the long cover 12. An oil tank 14 is fixedly installed between the two fixing brackets 13. An outlet shell 15 is fixedly installed at the bottom of the oil tank 14. A first spring 16 is connected to the inner wall of the outlet shell 15. An actuating block 17 adapted to the outlet shell 15 is connected to the end of the first spring 16. A second spring 18 is connected to the threaded block 8. A limit cover 19 is connected to the end of the second spring 18.

[0028] In this embodiment of the utility model, the operator opens the lid of the oil drum 14 and pours the lubricating oil into the inside of the oil drum 14 in advance. When the threaded block 8 moves, it will squeeze the contact block 17, squeezing the contact block 17 to the inside of the inlet and outlet shell 15, so that the contact block 17 no longer blocks the outlet shell 15, allowing the oil inside the oil drum 14 to flow out through the outlet shell 15, and allowing the oil to flow through the threaded block 8 to the lead screw 7, ensuring that the lead screw 7 is driven normally. Some of the oil drips onto the rod body 1 through the threaded block 8, so as to promote the rubber half ring 11 to scrape the rod body 1 and improve the cleaning ability.

[0029] Working principle: The operator controls the drive motor 6 to rotate the lead screw 7, which in turn moves the threaded block 8. The threaded block 8, through the bracket 9 and the miniature telescopic cylinder 10, moves the rubber half-ring 11, allowing it to move to the end of the rod 1 near the piston cylinder. The telescopic end of the miniature telescopic cylinder 10 is then controlled to move the rubber half-ring 11 to fit against the rod 1. The drive motor 6 is then reversed, causing the rubber half-ring 11 to scrape the surface of the rod 1, cleaning the dust. When the threaded block 8 moves, it presses against the contact block 17, pushing the contact block 17 to the inside of the outlet shell 15. This prevents the contact block 17 from blocking the outlet shell 15, allowing the oil inside the oil tank 14 to flow out through the outlet shell 15. The oil then flows through the threaded block 8 to the lead screw 7, ensuring normal transmission of the lead screw 7. Some oil drips onto the rod 1 through the threaded block 8, further promoting the scraping of the rod 1 by the rubber half-ring 11 and improving cleaning efficiency.

[0030] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A wear-resistant piston rod structure, comprising a rod body (1), a piston block (2) fixedly mounted on one end of the rod body (1), a rubber ring (3) provided on the piston block (2), and an mounting block (4) fixedly mounted on the other end of the rod body (1), characterized in that: A fixing block (5) is fixedly installed on the rod (1). A drive motor (6) is provided at the top of the fixing block (5). A lead screw (7) is fixedly installed on the output end of the drive motor (6). A threaded block (8) is threaded on the lead screw (7). A cleaning mechanism is provided on the threaded block (8). The cleaning mechanism is used to clean the dust on the surface of the rod (1). An oiling mechanism is provided on the drive motor (6).

2. The wear-resistant piston rod structure according to claim 1, characterized in that: The rubber ring (3) is made of rubber.

3. The wear-resistant piston rod structure according to claim 2, characterized in that: The cleaning mechanism includes two brackets (9) symmetrically fixedly installed on the threaded block (8), and a miniature telescopic cylinder (10) is fixedly installed at the end of each bracket (9). A rubber semi-ring (11) is fixedly installed on the telescopic end of the miniature telescopic cylinder (10).

4. The wear-resistant piston rod structure according to claim 3, characterized in that: The rubber semi-ring (11) is made of rubber, and the combined size of the two rubber semi-rings (11) is adapted to the rod body (1).

5. The wear-resistant piston rod structure according to claim 4, characterized in that: A long cover (12) adapted to the threaded block (8) is fixedly installed on the drive motor (6), and a through hole is provided on the long cover (12).

6. The wear-resistant piston rod structure according to claim 5, characterized in that: The oil filling mechanism includes two fixed brackets (13) symmetrically fixed on the long cover (12), and an oil drum (14) is fixedly installed between the two fixed brackets (13). An outlet shell (15) is fixedly installed at the bottom of the oil drum (14). A first spring (16) is connected to the inner wall of the outlet shell (15), and an actuating block (17) adapted to the outlet shell (15) is connected to the end of the first spring (16).

7. The wear-resistant piston rod structure according to claim 6, characterized in that: A second spring (18) is connected to the threaded block (8), and a limit cap (19) is connected to the end of the second spring (18).

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