Reinforcing structure and pin shaft

Abstract

The utility model relates to the technical field of pin shafts, in particular to a reinforcing structure and a pin shaft, which comprises a wear-resistant sleeve, the wear-resistant sleeve is sleeved on a shaft body of the pin shaft, balls are embedded on the inner ring surface of the wear-resistant sleeve, and a rubber strip is arranged on the outer wall of the wear-resistant sleeve; the reinforcing structure and the pin shaft have the beneficial effects that the wear-resistant sleeve is sleeved on the pin shaft, and the balls are embedded in the inner ring surface of the wear-resistant sleeve, so that the friction and the abrasion between the pin shaft and the wear-resistant sleeve are effectively reduced, and the service life of the pin shaft is prolonged; due to the design of the wear-resistant sleeve, the pin shaft is more stable in a workpiece hole, and looseness or damage caused by vibration or impact is reduced; due to the design of the rubber strips on the outer wall of the wear-resistant sleeve, buffering and protection between the pin shaft and a workpiece hole are further enhanced, direct friction and collision are avoided, and the overall stability and reliability of mechanical equipment are improved.

Description

Technical Field

[0001] The utility model relates to the field of pin shafts, in particular to a reinforcement structure and a pin shaft. Background Art

[0002] In the process of mechanical manufacturing and assembly, the pin is a key component for connecting and fixing various mechanical equipment. Its stability and reliability have an important impact on the overall performance of the equipment. However, during the operation of mechanical equipment, the pin often needs to withstand large friction, impact and vibration, which may cause wear between the pin and the connecting parts, thereby affecting the stability and service life of the equipment.

[0003] Traditional pin designs often use exposed cylinders or structures with simple threads. These designs are prone to direct contact with connected parts when subjected to large friction, resulting in increased wear. Especially in mechanical equipment that runs at high speeds or rotates frequently, the wear problem of pins is particularly prominent.

[0004] Therefore, a reinforcement structure and a pin are needed to solve the wear problem between the existing pin and the workpiece after installation; the wear between the pin and the workpiece can be effectively solved. Utility Model Content

[0005] The purpose of the utility model is to provide a reinforcement structure and a pin shaft to solve the wear problem between the existing pin shaft and the workpiece after installation proposed in the above background technology; the wear between the pin shaft and the workpiece can be effectively solved.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a reinforcement structure, including a wear-resistant sleeve, the wear-resistant sleeve is installed on the shaft body of the pin shaft, and the inner ring surface of the wear-resistant sleeve is embedded with a ball.

[0007] The outer wall of the wear-resistant sleeve is provided with a rubber strip.

[0008] Preferably, the inner ring surface of the wear-resistant sleeve is provided with an embedding groove, and there are two groups of embedding grooves, which are respectively distributed on the inner ring surfaces at both ends of the wear-resistant sleeve, and the balls correspond to the embedding grooves one by one. The balls are installed inside the embedding grooves, and the balls protrude from the embedding grooves.

[0009] Preferably, a reserved groove is provided on the shaft body of the pin shaft, and the reserved groove is an annular groove. The wear-resistant sleeve is installed inside the reserved groove of the side groove. The width of the reserved groove is equal to the rod length of the wear-resistant sleeve, and the inner diameter of the wear-resistant sleeve is larger than the inner diameter of the reserved groove. After the wear-resistant sleeve is installed inside the reserved groove, the ball is clamped between the wear-resistant sleeve and the reserved groove and rolls.

[0010] Preferably, the outer ring diameter of the wear-resistant sleeve is larger than the rod diameter of the pin shaft.

[0011] Preferably, the outer ring surface of the wear-resistant sleeve is provided with a side groove, the long side length of the side groove is equal to the rod length of the wear-resistant sleeve, a plurality of side grooves are provided, and the plurality of side grooves are distributed in a circle with the wear-resistant sleeve as the central axis, the rubber strip corresponds to the side groove one by one, and the rubber strip is fixed in the side groove.

[0012] Preferably, the thickness of the rubber strip is greater than the depth of the side groove.

[0013] A pin shaft comprises the reinforcement structure.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The reinforced structure and pin shaft proposed by the utility model effectively reduce the friction and wear between the pin shaft and the wear-resistant sleeve by sleeve-arranging a wear-resistant sleeve on the pin shaft and embedding balls on the inner ring surface of the wear-resistant sleeve, thereby extending the service life of the pin shaft; the design of the wear-resistant sleeve makes the pin shaft more stable in the hole of the workpiece, and reduces loosening or damage caused by vibration or impact; the rubber strip design on the outer wall of the wear-resistant sleeve further enhances the buffering and protection between the pin shaft and the hole of the workpiece, avoids direct friction and collision, and improves the overall stability and reliability of the mechanical equipment; further solves the wear problem between the existing pin shaft and the workpiece after installation; and can effectively solve the wear between the pin shaft and the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a side view of the structure of the utility model;

[0018] Figure 3 for Figure 2 Structural cross-section at AA in the middle;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 5 This is a schematic diagram of the structure of the wear-resistant sleeve of the utility model;

[0021] Figure 6 This is a schematic diagram of the pin structure of the utility model.

[0022] In the figure: wear-resistant sleeve 1, embedded groove 2, ball 3, side groove 4, rubber strip 5, reserved groove 6, pin shaft 7. DETAILED DESCRIPTION

[0023] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0024] Embodiment 1

[0025] See also Figure 1-Figure 3 The utility model provides a technical solution: a reinforcement structure, including a wear-resistant sleeve 1, which is sleeved and installed on the shaft body of the pin shaft 7, the inner ring surface of the wear-resistant sleeve 1 is embedded with balls 3, and the outer wall of the wear-resistant sleeve 1 is provided with rubber strips 5; by sleeved on the pin shaft, and embedding balls on the inner ring surface of the wear-resistant sleeve, the friction and wear between the pin shaft and the wear-resistant sleeve are effectively reduced, thereby extending the service life of the pin shaft; the design of the wear-resistant sleeve makes the pin shaft more stable in the hole of the workpiece, reducing loosening or damage caused by vibration or impact; the rubber strip design on the outer wall of the wear-resistant sleeve further enhances the buffering and protection between the pin shaft and the hole of the workpiece, avoids direct friction and collision, and improves the overall stability and reliability of the mechanical equipment; further solves the wear problem between the existing pin shaft and the workpiece after installation; can effectively solve the wear between the pin shaft and the workpiece.

[0026] Embodiment 2

[0027] Refer to the attached Figures 4 to 6 On the basis of the first embodiment, in order to reduce the wear of the wear-resistant sleeve 1 after being sleeved on the pin shaft 7, an embedding groove 2 is provided on the inner ring surface of the wear-resistant sleeve 1, and two groups of embedding grooves 2 are provided. The two groups of embedding grooves 2 are respectively distributed on the inner ring surfaces at both ends of the wear-resistant sleeve 1, and the balls 3 correspond to the embedding grooves 2 one by one. The balls 3 are installed inside the embedding grooves 2, and the balls 3 protrude from the embedding grooves 2. A reserved groove 6 is provided on the shaft body of the pin shaft 7. The reserved groove 6 is an annular groove. The wear-resistant sleeve 1 is sleeved inside the reserved groove 6 of the side groove 4. The width of the reserved groove 6 is equal to the rod length of the wear-resistant sleeve 1. The inner diameter of the wear-resistant sleeve 1 is larger than the inner diameter of the reserved groove 6. After the wear-resistant sleeve 1 is sleeved inside the reserved groove 6, the balls 3 are clamped between the wear-resistant sleeve 1 and the reserved groove 6 and roll.

[0028] The reason why the wear-resistant sleeve 1 is installed on the rod body of the pin shaft 7 is to allow the pin shaft 7 and the wear-resistant sleeve 1 to rotate to avoid contact between the pin shaft 7 and the workpiece structure, and a plurality of balls 3 are embedded in the inner ring surface of the wear-resistant sleeve 1. When the wear-resistant sleeve 1 and the pin shaft 7 rotate relative to each other, the presence of the balls 3 reduces the wear between the wear-resistant sleeve 1 and the pin shaft 7.

[0029] Embodiment 3

[0030] On the basis of Example 2, in order to reduce the wear between the pin shaft 7 and the workpiece after the pin shaft 7 is installed on the workpiece together with the wear-resistant sleeve 1, the outer ring diameter of the wear-resistant sleeve 1 is larger than the rod diameter of the pin shaft 7, and the outer ring surface of the wear-resistant sleeve 1 is provided with a side groove 4, the long side length of the side groove 4 is equal to the rod length of the wear-resistant sleeve 1, and a plurality of side grooves 4 are provided, and the plurality of side grooves 4 are distributed in a circle with the wear-resistant sleeve 1 as the central axis, the rubber strip 5 corresponds to the side groove 4 one by one, the rubber strip 5 is fixed in the side groove 4, and the thickness of the rubber strip 5 is greater than the depth of the side groove 4.

[0031] When the pin shaft 7 with the wear-resistant sleeve 1 is inserted into the installation hole of the workpiece, since the outer ring surface of the wear-resistant sleeve 1 is installed with a rubber strip 5, after the pin shaft 7 is inserted into the hole of the workpiece, the rubber strip 5 is clamped between the wear-resistant sleeve 1 and the hole of the workpiece, so that the wear-resistant sleeve 1 is temporarily limited in the hole of the workpiece. If the pin shaft 7 rotates, there are two situations. One is that the pin shaft 7 rotates inside the wear-resistant sleeve 1 when rotating, that is, the pin shaft 7 does not drive the wear-resistant sleeve 1 to rotate; the other is that the pin shaft 7 drives the wear-resistant sleeve 1 to rotate when rotating; both situations effectively avoid wear between the pin shaft 7 and the hole of the workpiece, and the rubber strip 5 is between the wear-resistant sleeve 1 and the hole of the workpiece, thereby avoiding wear between the wear-resistant sleeve 1 and the hole of the workpiece.

[0032] Embodiment 4

[0033] Based on the third embodiment, a pin shaft is proposed, including a reinforcement structure.

[0034] When in use, the wear-resistant sleeve 1 is installed on the rod body of the pin shaft 7 to prevent the pin shaft 7 from contacting the workpiece structure, and a plurality of balls 3 are embedded on the inner ring surface of the wear-resistant sleeve 1. When the wear-resistant sleeve 1 and the pin shaft 7 rotate relative to each other, the wear between the wear-resistant sleeve 1 and the pin shaft 7 is reduced due to the presence of the balls 3. When the pin shaft 7 with the wear-resistant sleeve 1 is inserted into the installation hole of the workpiece, the rubber strip 5 is installed on the outer ring surface of the wear-resistant sleeve 1. The rubber strip 5 is clamped between the wear-resistant sleeve 1 and the hole of the workpiece, so that the wear-resistant sleeve 1 is temporarily limited in the hole of the workpiece. If the pin shaft 7 rotates, there are two situations. One is that the pin shaft 7 rotates inside the wear-resistant sleeve 1 when it rotates, that is, the pin shaft 7 will not drive the wear-resistant sleeve 1 to rotate; the other is that the pin shaft 7 drives the wear-resistant sleeve 1 to rotate when it rotates; both situations effectively avoid wear between the pin shaft 7 and the hole of the workpiece, and the rubber strip 5 is between the wear-resistant sleeve 1 and the hole of the workpiece, thereby avoiding wear between the wear-resistant sleeve 1 and the hole of the workpiece.

[0035] 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 reinforcement structure, comprising a wear-resistant sleeve (1), the wear-resistant sleeve (1) being sleeved and mounted on the shaft of a pin shaft (7), characterized in that: The inner ring surface of the wear-resistant sleeve (1) is embedded with a ball (3), and the outer wall of the wear-resistant sleeve (1) is provided with a rubber strip (5).

2. A reinforcement structure according to claim 1, characterized in that: The inner ring surface of the wear-resistant sleeve (1) is provided with an embedding groove (2), and the embedding groove (2) is provided with two groups. The two groups of embedding grooves (2) are respectively distributed on the inner ring surfaces at both ends of the wear-resistant sleeve (1), and the balls (3) and the embedding grooves (2) correspond one to one. The balls (3) are installed inside the embedding grooves (2), and the balls (3) protrude from the embedding grooves (2).

3. A reinforcement structure according to claim 1, characterized in that: The shaft body of the pin shaft (7) is provided with a reserved groove (6), which is an annular groove. The wear-resistant sleeve (1) is sleeved inside the reserved groove (6) of the side groove (4). The width of the reserved groove (6) is equal to the rod length of the wear-resistant sleeve (1), and the inner diameter of the wear-resistant sleeve (1) is larger than the inner diameter of the reserved groove (6). After the wear-resistant sleeve (1) is sleeved inside the reserved groove (6), the ball (3) is clamped between the wear-resistant sleeve (1) and the reserved groove (6) to roll.

4. A reinforcement structure according to claim 1, characterized in that: The outer ring diameter of the wear-resistant sleeve (1) is larger than the rod diameter of the pin shaft (7).

5. A reinforcement structure according to claim 1, characterized in that: The outer ring surface of the wear-resistant sleeve (1) is provided with a side groove (4), the long side length of the side groove (4) is equal to the rod length of the wear-resistant sleeve (1), a plurality of side grooves (4) are provided, and the plurality of side grooves (4) are distributed in a circle with the wear-resistant sleeve (1) as the central axis, the rubber strip (5) and the side groove (4) correspond one to one, and the rubber strip (5) is fixed in the side groove (4).

6. A reinforcement structure according to claim 5, characterized in that: The thickness of the rubber strip (5) is greater than the depth of the side groove (4).

7. A pin, characterized in that: The reinforcing structure comprises any one of claims 1 to 6.

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