Guiding anti-rotation mechanism with longer service life

Abstract

The utility model discloses a guide anti-rotation mechanism with longer service life, which relates to the technical field of anti-rotation mechanisms, and comprises a guide seat and a base, the guide seat is fixedly connected with a guide block in the direction close to the base, a guide groove is formed in the center of the base, a square cushion block is arranged in the guide groove and attached to the guide block, and the square cushion block is fixedly connected with the guide seat. A guide check ring is arranged on the outer ring of the guide seat, and an annular cushion block is arranged between the guide check ring and the base. Through the design of the square cushion block and the annular cushion block, direct friction between metal parts is avoided, the abrasion degree is greatly reduced, the friction part can be effectively filled with lubricating grease through the oil storage hole and the oil injection hole, the service life of the parts is further prolonged, and the service life of the parts is prolonged. The overall modular design enables maintenance to be more convenient, and replacement of the square cushion block is faster.

Description

Technical Field

[0001] This utility model belongs to the technical field of anti-rotation mechanism, specifically, it relates to a guide anti-rotation mechanism with a longer service life. Background Technology

[0002] In various mechanical equipment, guiding and anti-rotation mechanisms are crucial components for ensuring stable operation and preventing abnormal rotation of parts. They are suitable for mechanical equipment requiring long-term stable operation and high precision, such as hydraulic cylinders and drive shafts. Taking hydraulic cylinders as an example, during operation, the piston rod needs to move stably in a specific direction while preventing unnecessary rotation. Otherwise, it will affect the working accuracy of the hydraulic cylinder and may even damage the seals, leading to oil leaks and other malfunctions. In drive shaft systems, the drive shaft needs to accurately transmit torque. Any slight rotational deviation can lead to reduced transmission efficiency, vibration and noise, and accelerated component wear.

[0003] Chinese patent CN218287722U discloses an internal anti-rotation guiding mechanism for an electronic power booster. It mainly consists of a front housing, a rear housing, an anti-rotation frame assembly, a screw, and a gear assembly. The front and rear housings, when assembled, form a relatively closed cavity. A fixed gear assembly with threaded holes is installed on the inner end face of the rear housing. The screw is fitted into the threaded hole of the gear assembly to form a threaded pair. The screw is installed in the cavity via the anti-rotation frame assembly, allowing only axial movement and preventing rotation. The overall structure relies on the friction between metal parts, which reduces the mechanism's lifespan after prolonged wear. As wear intensifies, the mechanism's accuracy gradually decreases, leading to unstable equipment operation. To maintain normal operation, frequent replacement of worn parts is necessary, undoubtedly increasing maintenance costs and affecting the overall performance and reliability of the equipment. In production scenarios with extremely high requirements for continuous equipment operation, such as automobile manufacturing and electronic chip production, frequent equipment maintenance and downtime for parts replacement can cause significant economic losses.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a guide anti-rotation mechanism with a longer service life, thus solving the problems mentioned in the background art.

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

[0007] A longer-lasting guide anti-rotation mechanism includes: a guide seat and a base, characterized in that: a guide block is fixedly connected to the guide seat in the direction close to the base; a guide groove is provided at the center of the base; a square pad is provided inside the guide groove in close contact with the guide block; mounting grooves are provided at the top and bottom of the guide groove; and a mounting plate is provided inside the mounting groove.

[0008] Optionally, the outer ring of the guide seat is provided with a guide retaining ring, and an annular pad is provided between the guide retaining ring and the base.

[0009] Optionally, an oil storage hole is provided at the bottom of the mounting groove, and an oil injection hole is provided horizontally in the oil storage hole.

[0010] Optionally, the square pad and the ring pad are made of the same polymer material.

[0011] Optionally, the base and guide seat are provided with a front housing on their outer rings, and the base is provided with a rear housing at its bottom.

[0012] Optionally, an anti-rotation retaining ring is provided between the rear housing and the guide seat.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0014] 1. This longer-life guide anti-rotation mechanism connects the base and guide seat by inserting a guide block into the guide groove of the base. A square pad is inserted into the contact surface to prevent direct contact between the metal surfaces and prevent relative rotation between the base and guide seat. At the same time, grease is squeezed into the oil injection hole and flows into the gap between the direction pad and the metal surface through the oil injection hole. Friction lubrication reduces the coefficient of friction and extends the service life, thereby reducing the overall use cost.

[0015] 2. This longer-lasting guide anti-rotation mechanism features a modular design, making disassembly and installation simple and convenient. After the square pad wears out over time, the front housing can be opened and the mounting plate removed to replace the steering pad. Lubricant can then be added to reduce friction loss, making maintenance and upkeep of the structure more convenient.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] In the picture:

[0019] Figure 1This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a longitudinal sectional view of the present invention;

[0021] Figure 3 This is a cross-sectional view of the oil storage hole of this utility model;

[0022] Figure 4 This is an exploded view of the present invention.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Guide seat; 101. Guide block; 102. Guide retaining ring; 201. Guide groove; 202. Mounting groove; 203. Oil reservoir hole; 204. Oil filling hole; 2. Base; 3. Square pad; 4. Annular pad; 5. Mounting plate; 6. Front housing; 7. Rear housing; 8. Anti-rotation retaining ring.

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] Please see Figure 1-4 As shown, this embodiment provides a guide anti-rotation mechanism with a longer service life, including: guide seat 1 and base 2.

[0028] like Figure 1-4As shown, in this embodiment, a guide block 101 is fixedly connected to the guide seat 1 near the base 2. A guide groove 201 is provided at the center of the base 2. A square pad 3 is provided inside the guide groove 201 to fit the guide block 101. Mounting grooves 202 are provided at the top and bottom of the guide groove 201, and mounting plates 5 are provided inside the mounting grooves 202. The guide seat 1 is usually designed to be cylindrical. This shape ensures structural strength while facilitating installation with other components. The guide block 101 connected to the bottom of the guide seat 1 is rectangular and can be inserted into the opening of the guide groove 201 at the center of the base 2. The gap between the two contact surfaces needs to be able to fit the directional pad 3 to ensure that the guide block 101 does not wobble in the guide groove 201. The base 1 is also cylindrical, and a horizontal surface is provided near the edge of the guide groove 201. Mounting slot 202, mounting plate 5 is fixed in mounting slot 202 by fasteners. The mounting plates 5 at the upper and lower ends are fixed to close the guide slot 201 at the upper and lower points, preventing the square pad 3 from falling out from the upper and lower openings of the guide slot 201, thereby connecting the guide seat 1 and the base 2, so that the guide seat 1 and the base 2 form a stable connection relationship, ensuring that the guide seat 1 can move accurately along the direction of the guide slot 201 during movement, while restricting its rotational freedom. The square pad 3 separates the contact between the inner wall of the guide slot 201 and the metal surface of the guide block 101, avoiding irreversible wear caused by friction between the two metal surfaces. The separately manufactured square pad 3 is more convenient to produce and replace. The back of the mounting plate 5 is arc-shaped. After being fixed by fasteners, the arc surface fits the arc surface of the base 2, making the base 2 form a whole, which is more aesthetically pleasing.

[0029] like Figure 4 As shown, the guide seat 1 in this embodiment is provided with a guide retaining ring 102 on its outer ring, and an annular pad 4 is provided between the guide retaining ring 102 and the base 2. The outer diameter of the guide retaining ring 102 is the same as the outer diameter of the base 2. When the guide block 101 is fully inserted into the guide groove 201, the guide retaining ring 102 is close to the front end of the base 2. The two are separated by the annular pad 4 to avoid wear caused by contact between the metal parts of the base 2 and the guide retaining ring 102. The annular pad 4 is bonded and fixed on the base 2. When the guide seat 1 moves, the guide groove 201 limits the guide block 101, so that it can only move back and forth. When the guide block 101 is moved out of the guide groove 201, the square pad 3 is blocked when pulled due to the fixation of the annular pad 4 on the base 2. The surface of the square pad 3 rubs against the guide block 101 to move, thereby reducing the friction of movement.

[0030] like Figure 1-4As shown, the mounting groove 202 in this embodiment has an oil storage hole 203 at the bottom, and an oil injection hole 204 is opened horizontally in the oil storage hole 203. The oil storage hole 203 is filled with grease. There are multiple sets of oil storage holes 203 connected on the guide groove 201. The oil storage port 203 is connected to the guide groove 201 through the oil injection hole 204. When the oil storage hole 203 is filled, the solid grease flows and merges, passes through the oil injection hole 204, enters the guide groove 201, and fills the gap between the side wall of the guide groove 201 and the square pad 3. A lubricating film is formed between the square pad 3 and the guide groove 201, which greatly reduces the friction between the two, thereby reducing the wear of the square pad 3.

[0031] like Figure 4 As shown, the square pad 3 and the annular pad 4 in this embodiment are made of the same polymer material. The polymer material used in the square pad 3 and the annular pad 4 has excellent properties such as high strength, high wear resistance, low coefficient of friction and good chemical stability. The square pad 3 body fits into the guide groove 201 and the guide block 101, avoiding direct contact between the two, while increasing the overall contact area and reducing the force. After the square pad 3 wears down due to friction, the stability of the guide seat 1 is affected. The square pad 3 can be pulled out from the guide groove 201 by removing the mounting plate 5 to replace it with a new square pad 3. The thickness of the square pad 3 produced in batches should be consistent to reduce the error generated in the guide groove 201. The annular pad 4 reduces the impact of the guide retainer 102 on the base 2 when the guide seat 1 moves by separating the top of the base 2 and the guide retainer 102, thereby protecting the overall stability of the structure.

[0032] like Figure 1 , 2 As shown, in this embodiment, the base 2 and guide seat 1 are provided with a front housing 6 on their outer rings, and a rear housing 7 is provided at the bottom of the base 2. The rear housing 7 is installed at the bottom of the base 2 by fasteners to support the entire base 2. The middle part of the front housing 6 is tapered inward and close to the surface of the base 2. Both ends are provided with mounting holes. The end that fits into the rear housing 7 is also fixed by fasteners. The mounting hole at the front end is used to connect other housings. After the two housings are spliced ​​together, the guide groove 201 and the guide block 101 are in a relatively closed space. They are fixed inside by the mounting plate 5 in advance to prevent foreign objects from interfering with the relative movement between the guide seat 1 and the base 2, thus ensuring the normal operation of the mechanism.

[0033] like Figure 4As shown, an anti-rotation retaining ring 8 is provided between the rear housing 7 and the guide seat 1 in this embodiment; wherein, the anti-rotation retaining ring 8 is sleeved on the front end of the guide seat 1 and fixed by fasteners. The anti-rotation retaining ring 8 extends out of the brackets on both sides and fits against the inner wall of the front housing 6. The front housing 6 extends forward a certain distance so that the anti-rotation retaining ring 8 moves with the guide retaining ring 102 connected to it when the guide seat 1 moves. The brackets at both ends always fit against the inner wall of the front housing 6, so that the front housing 6 and the guide seat 1 support each other stably.

[0034] Working principle: When the guide anti-rotation mechanism is working, the guide seat 1 moves along the guide groove 201 of the base 2 under the action of external driving force. During this process, the guide block 101 slides in the guide groove 201, and the square pad 3 plays a certain role in isolation and buffering. Because the square pad 3 is made of polymer material, its coefficient of friction with the guide groove 201 and guide block 101 is low, which can effectively reduce wear. At the same time, the grease in the oil storage hole 203 flows into the guide groove 201 through the oil injection hole 204, forming a lubricating film between the square pad 3 and the guide groove 201, which further reduces frictional resistance. This lubricating film can not only reduce friction, but also carry away the heat generated by friction, preventing the parts from being damaged due to overheating. During the movement of the guide seat 1, the guide retaining ring 102 and the annular pad 4 cooperate with each other to avoid direct metal-to-metal contact between the guide seat 1 and the base 2, reducing wear and impact. When the guide seat 1 tends to rotate, the bracket of the anti-rotation retaining ring 8 will generate an interaction force with the inner wall of the front housing 6 to prevent the guide seat 1 from rotating. Through the coordinated work of multiple parts, the guide anti-rotation mechanism can operate stably and efficiently, realizing its guiding and anti-rotation functions.

[0035] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A longer-lasting guide anti-rotation mechanism, comprising: The guide seat (1) and the base (2) are characterized in that the guide seat (1) is fixedly connected to the guide block (101) in the direction close to the base (2), the base (2) has a guide groove (201) at the center position, a square pad (3) is provided inside the guide groove (201) to fit the guide block (101), the top and bottom of the guide groove (201) are provided with mounting grooves (202), and a mounting plate (5) is provided inside the mounting groove (202).

2. The guide anti-rotation mechanism with a longer service life according to claim 1, characterized in that, The guide seat (1) is provided with a guide retaining ring (102) on its outer ring, and an annular pad (4) is provided between the guide retaining ring (102) and the base (2).

3. The guide anti-rotation mechanism with a longer service life according to claim 1, characterized in that, The bottom of the mounting groove (202) is provided with an oil storage hole (203), and the oil storage hole (203) is provided with an oil injection hole (204) in the horizontal direction.

4. A guide anti-rotation mechanism with a longer service life according to claim 2, characterized in that, The square pad (3) and the ring pad (4) are made of the same polymer material.

5. A guide anti-rotation mechanism with a longer service life according to claim 1, characterized in that, The base (2) and guide seat (1) are provided with a front housing (6) on their outer rings, and the base (2) is provided with a rear housing (7) at its bottom.

6. A guide anti-rotation mechanism with a longer service life according to claim 5, characterized in that, An anti-rotation retaining ring (8) is provided between the rear housing (7) and the guide seat (1).

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