Anti-abrasion pin shaft

Abstract

The invention relates to the technical field of pin shafts, in particular to an anti-abrasion pin shaft which comprises a pin shaft rod, a preformed hole is formed in the surface of the pin shaft rod, a barrier strip is inserted into the preformed hole, a preformed groove is formed in one end of the pin shaft rod, a lantern ring is arranged in the preformed groove in a sleeved mode, and one end of the lantern ring is integrally formed on the surface of an end plate. The end plate is fixed to one end of the pin shaft rod, an oil storage cavity is formed in the end plate, a guide-in groove is formed in the lantern ring, the oil storage cavity communicates with the guide-in groove, an oil seepage hole is formed in the outer ring face of the lantern ring and communicates with the guide-in groove, and lubricating oil is contained in the oil storage cavity. The hinge pin has the beneficial effects that the shaft rod of the hinge pin is provided with the preformed hole, the barrier strip is inserted in the preformed hole, the limiting and buffering effects are achieved through the rubber ring on the barrier strip, and friction and abrasion between the hinge pin and a workpiece are effectively reduced. Meanwhile, lubricating oil in the oil storage cavity can continuously seep out and lubricate the pin shaft rod, abrasion is further reduced, and stability and reliability of connection are improved.

Description

Technical Field

[0001] The invention relates to the field of pin shafts, in particular to an anti-wear pin shaft. Background Art

[0002] In traditional mechanical connections, pins are a common connection element and are widely used in various equipment and structures. However, during the use of traditional pins, due to friction and wear between the pins and the workpiece, the connection often becomes loose or fails, thus affecting the normal operation and service life of the equipment. Especially in situations where frequent rotation or heavy loads are required, the wear problem of the pins is particularly prominent.

[0003] In order to solve the problem of pin wear, people have made many attempts and improvements. For example, the pin is made of a material with higher hardness, or the pin surface is specially treated to increase its wear resistance. However, these methods often have problems such as high cost, complex processing or limited effect, which are difficult to meet the needs of practical applications.

[0004] Therefore, the present invention proposes a new anti-wear pin technical solution, which aims to reduce pin wear, improve connection stability and extend service life by improving the structure and material of the pin. Summary of the invention

[0005] The object of the present invention is to provide a wear-resistant pin shaft to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-wear pin shaft, including a pin shaft shaft, a reserved hole is provided on the surface of the pin shaft shaft, a baffle is inserted inside the reserved hole, a reserved groove is provided at one end of the pin shaft shaft, a collar is sleeved inside the reserved groove, one end of the collar is integrally formed on the surface of an end plate, the end plate is fixed to one end of the pin shaft shaft, an oil storage cavity is provided inside the end plate, an inlet groove is provided inside the collar, the oil storage cavity and the inlet groove are connected, an oil seepage hole is provided on the outer ring surface of the collar, the oil seepage hole is connected to the inlet groove, and the oil storage cavity is filled with lubricating oil.

[0007] Preferably, two groups of rubber rings are fixedly mounted on the rod body of the baffle, the outer ring diameter of the rubber ring is larger than the hole diameter of the reserved hole, and each group of rubber rings is provided with multiple rubber rings, and the multiple rubber rings are arranged up and down with equal distances and sizes. After the baffle is inserted into the reserved hole, the two groups of rubber rings are symmetrically distributed about the reserved hole.

[0008] Preferably, the reserved groove is an annular groove, the outer diameter of the collar is equal to the rod diameter of the pin shaft, the circular surface diameter of the end plate is larger than the rod diameter of the pin shaft, and the oil storage cavity and the inlet groove are connected to form a "convex" shaped annular groove.

[0009] Preferably, an oil filling port is provided on the surface of the end plate, the oil filling port is connected to the oil storage cavity, a rubber seal is inserted and fixed inside the oil filling port, the thickness of the rubber seal is smaller than the depth of the oil filling port, and a pressure relief hole is provided on the surface of the rubber seal.

[0010] Preferably, a baffle ring is fixed to the inner wall of the oil filling port, a sealing block is inserted into the end of the oil filling port away from the rubber sealing block, a groove is provided on the ring surface of the sealing block, and the groove is an annular groove. When the sealing block abuts against one side of the baffle ring, a rubber ring is inserted into the inside of the groove, and the rubber ring is fixed inside the oil filling port.

[0011] Preferably, a surface of the sealing block away from the retaining ring is provided with a notch, and a pull rod is fixed on the surface of the notch.

[0012] Preferably, a sealing gasket is fixedly mounted on the outer ring surface of the sleeve ring, and the sealing gasket is a circular ring plate with an "L"-shaped cross section, and one end of the sealing gasket is fixed to the surface of the end plate.

[0013] Preferably, the oil seepage holes are provided in plurality, and the plurality of oil seepage holes are arranged and distributed at equal distances and in equal sizes along the outer ring surface of the collar.

[0014] Preferably, a steel ball is provided inside the oil storage chamber.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The wear-resistant pin shaft proposed by the present invention has a reserved hole on the pin shaft and inserts a baffle bar, and uses the rubber ring on the baffle bar to achieve the limiting and buffering effect, thereby effectively reducing the friction and wear between the pin shaft and the workpiece. At the same time, the lubricating oil in the oil storage cavity can continuously seep out and lubricate the pin shaft, further reducing wear and improving the stability and reliability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a front view of the structure of the present invention;

[0019] Figure 3 for Figure 2 Structural cross-section view at AA in the middle;

[0020] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 5 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0022] Figure 6 for Figure 3 A magnified schematic diagram of the structure at C in the middle;

[0023] Figure 7 This is a schematic diagram of the connection structure between the baffle bar and the rubber ring of the present invention;

[0024] Figure 8 It is a schematic diagram of the connection structure between the sleeve ring and the end plate of the present invention;

[0025] Fig. 9 This is a schematic diagram of the sealing block structure of the present invention;

[0026] Fig.10 It is a schematic diagram of the pin shaft structure of the present invention.

[0027] In the figure: pin shaft 1, reserved hole 2, baffle 3, rubber ring 4, reserved groove 5, collar 6, end plate 7, oil storage chamber 8, inlet groove 9, oil seepage hole 10, oil absorbing cotton pad 11, oil absorbing cotton sleeve 12, steel ball 13, oil filling port 14, rubber sealing block 15, pressure relief hole 16, baffle ring 17, sealing block 18, slot 19, rubber ring 20, missing groove 21, pull rod 22, sealing gasket 23. DETAILED DESCRIPTION

[0028] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 10 The present invention provides a technical solution: an anti-wear pin shaft, comprising a pin shaft shaft 1, a reserved hole 2 is opened on the surface of the pin shaft shaft 1, a retaining bar 3 is inserted inside the reserved hole 2, two groups of rubber rings 4 are fixedly sleeved on the rod body of the retaining bar 3, the outer ring diameter of the rubber ring 4 is larger than the aperture of the reserved hole 2, each group of rubber rings 4 is provided with multiple rubber rings 4, multiple rubber rings 4 are arranged up and down with equal distance and size, and after the retaining bar 3 is inserted into the reserved hole 2, the two groups of rubber rings 4 are symmetrically distributed about the reserved hole 2. When in use, after the pin shaft shaft 1 passes through the workpiece, the retaining bar 3 is inserted into the reserved hole 2, and the two groups of rubber rings 4 are respectively blocked on both sides of the reserved hole 2 to prevent the retaining bar 3 from falling off from the reserved hole 2.

[0030] The pin shaft 1 has a reserved groove 5 at one end, a collar 6 is sleeved inside the reserved groove 5, one end of the collar 6 is integrally formed on the surface of the end plate 7, the end plate 7 is fixed at one end of the pin shaft 1, an oil storage chamber 8 is provided inside the end plate 7, an introduction groove 9 is provided inside the collar 6, the oil storage chamber 8 and the introduction groove 9 are connected, an oil seepage hole 10 is provided on the outer ring surface of the collar 6, the oil seepage hole 10 is connected to the introduction groove 9, and the oil storage chamber 8 is filled with lubricating oil; the reserved groove 5 is an annular groove, and the outer ring surface of the collar 6 is provided with an oil hole 10, which is connected to the introduction groove 9. The inside of the oil storage chamber 8 is filled with lubricating oil; The diameter is equal to the rod diameter of the pin shaft 1, the circular surface diameter of the end plate 7 is larger than the rod diameter of the pin shaft 1, and the oil storage chamber 8 and the introduction groove 9 are connected to form a "convex" shaped circular ring groove; the outer ring surface of the ring 6 is sleeved with a sealing gasket 23, and the sealing gasket 23 is a circular ring plate with an "L"-shaped cross section, and one end of the sealing gasket 23 is fixed to the surface of the end plate 7; a plurality of oil seepage holes 10 are provided, and the plurality of oil seepage holes 10 are arranged and distributed at equal distances and sizes along the outer ring surface of the ring 6; a steel ball 13 is provided inside the oil storage chamber 8.

[0031] During use, when the pin shaft 1 passes through the workpiece and is limited by the stop bar 3, the end plate 7 rests on one side of the workpiece, and the sealing gasket 23 is clamped between the end plate 7 and the workpiece. After the lubricating oil inside the oil storage chamber 8 saturates the oil-absorbing cotton pad 11 and the oil-absorbing cotton sleeve 12, the saturated lubricating oil on the surface of the oil-absorbing cotton pad 11 seeps out through the oil seepage hole 10, and the seeped lubricating oil extends into between the pin shaft 1 and the through hole of the workpiece, lubricating the pin shaft 1 and reducing the wear of the pin shaft 1. The reason for adding steel balls 13 in the oil storage chamber 8 is that when the pin shaft 1 is shaken, the steel balls 13 jump in the oil storage chamber 8 to mix the lubricating oil inside the oil storage chamber 8.

[0032] An oil filling port 14 is provided on the surface of the end plate 7, and the oil filling port 14 is connected to the oil storage chamber 8. A rubber seal 15 is inserted and fixed inside the oil filling port 14. The thickness of the rubber seal 15 is less than the depth of the oil filling port 14, and a pressure relief hole 16 is provided on the surface of the rubber seal 15; a retaining ring 17 is fixed to the inner wall of the oil filling port 14, and a seal 18 is inserted at the end of the oil filling port 14 away from the rubber seal 15. A groove 19 is provided on the annular surface of the seal 18, and the groove 19 is an annular groove. When the seal 18 abuts against one side of the retaining ring 17, a rubber ring 20 is inserted inside the groove 19, and the rubber ring 20 is fixed inside the oil filling port 14; a notch 21 is provided on the surface of the seal 18 away from the retaining ring 17, and a pull rod 22 is fixed on the surface of the notch 21.

[0033] During use, it is necessary to add lubrication to the oil storage chamber 8. Sometimes, pinch the pull rod 22 by hand, pull the pull rod 22 to remove the sealing block 18 from the oil filling port 14, and then the rubber sealing block 15 is exposed. After sucking the lubricating oil with the help of a needle tube, pass the needle through the rubber sealing block 15, and inject the lubricating oil in the needle tube into the oil storage chamber 8. The pressure relief hole 16 is used to relieve pressure during oil filling. After the oil filling is completed, remove the needle, and then push the sealing block 18 back to the oil filling port 14, and insert the rubber ring 20 into the card slot 19 to realize the anti-detachment limit of the sealing block 18.

[0034] The use process of anti-wear pin is as follows:

[0035] 1. Install the pin shaft and the stop bar: Determine the workpiece that the pin shaft 1 needs to penetrate and the position of the hole. Pass the pin shaft 1 through the hole of the workpiece to ensure that the pin shaft 1 completely penetrates the workpiece. Insert the stop bar 3 into the reserved hole 2 on the pin shaft 1 to ensure that the stop bar 3 is fully inserted and fixed. The two sets of rubber rings 4 on the stop bar 3 will block the two sides of the reserved hole 2 respectively to prevent the stop bar 3 from falling off.

[0036] 2. Install the end plate and the gasket: Make sure that the end plate 7 and the collar 6 on its surface match one end of the pin shaft 1. Fix the end plate 7 to one end of the pin shaft 1, and make sure that the collar 6 is sleeved in the reserved groove 5. Sleeve the gasket 23 on the outer ring surface of the collar 6 and fix it on the surface of the end plate 7.

[0037] 3. Lubrication system preparation: Make sure that the oil storage chamber 8 is filled with enough lubricating oil, and check whether the steel ball 13 is in the oil storage chamber 8. Make sure that the oil seepage hole 10 is unobstructed so that the lubricating oil can seep out smoothly.

[0038] 4. Replenishing lubricating oil: prepare an appropriate amount of lubricating oil and oiling tools (such as a needle). Pinch the pull rod 22 by hand, and pull the pull rod 22 to remove the sealing block 18 from the oil filling port 14. Expose the rubber sealing block 15 and prepare for oil filling. After sucking the lubricating oil with the help of the needle, pass the needle through the rubber sealing block 15. Inject the lubricating oil in the needle into the oil storage chamber 8. Note that the pressure relief hole 16 is used to relieve pressure during oil filling. Pull the needle out of the rubber sealing block 15. Push the sealing block 18 back into the oil filling port 14, and make sure that the rubber ring 20 is inserted into the card slot 19 to prevent the sealing block 18 from falling off.

[0039] V. Use and Maintenance: The pin shaft 1 and the workpiece through-hole will be lubricated by lubricating oil to reduce wear. Regularly check the amount of lubricating oil in the oil storage chamber 8 and replenish the lubricating oil in time. Check the status of the sealing gasket 23 and the oil seepage hole 10 to ensure their normal operation. If the sealing gasket 23 is found to be aged or the oil seepage hole 10 is blocked, replace or clean it in time. Regularly check the status of the baffle 3 and the rubber ring 4 to ensure that they are fixed reliably.

[0040] 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 wear-resistant pin shaft, comprising a pin shaft shaft (1), a surface of the pin shaft shaft (1) is provided with a reserved hole (2), a retaining bar (3) is inserted into the reserved hole (2), and the characteristics are: A reserved groove (5) is provided at one end of the pin shaft (1), a sleeve (6) is sleeved inside the reserved groove (5), one end of the sleeve (6) is integrally formed on the surface of an end plate (7), the end plate (7) is fixed to one end of the pin shaft (1), an oil storage chamber (8) is provided inside the end plate (7), an introduction groove (9) is provided inside the sleeve (6), the oil storage chamber (8) and the introduction groove (9) are connected, an oil seepage hole (10) is provided on the outer ring surface of the sleeve (6), the oil seepage hole (10) is connected to the introduction groove (9), and the oil storage chamber (8) is filled with lubricating oil.

2. The wear-resistant pin according to claim 1, characterized in that: Two groups of rubber rings (4) are sleeved and fixed on the rod body of the baffle (3); the outer ring diameter of the rubber ring (4) is larger than the hole diameter of the reserved hole (2); each group of rubber rings (4) is provided with a plurality of rubber rings, and the plurality of rubber rings (4) are arranged up and down at equal distances and sizes; after the baffle (3) is inserted into the reserved hole (2), the two groups of rubber rings (4) are symmetrically distributed about the reserved hole (2).

3. The wear-resistant pin according to claim 1, characterized in that: The reserved groove (5) is an annular groove, the outer diameter of the collar (6) is equal to the rod diameter of the pin shaft (1), the circular surface diameter of the end plate (7) is larger than the rod diameter of the pin shaft (1), and the oil storage cavity (8) and the introduction groove (9) are connected to form a "convex" shaped annular groove.

4. The wear-resistant pin according to claim 1, characterized in that: The surface of the end plate (7) is provided with an oil filling port (14), the oil filling port (14) is connected to the oil storage chamber (8), a rubber sealing block (15) is inserted and fixed inside the oil filling port (14), the thickness of the rubber sealing block (15) is smaller than the depth of the oil filling port (14), and a pressure relief hole (16) is provided on the surface of the rubber sealing block (15).

5. The wear-resistant pin according to claim 4, characterized in that: A retaining ring (17) is fixed to the inner wall of the oil filling port (14); a sealing block (18) is inserted into the end of the oil filling port (14) away from the rubber sealing block (15); a clamping groove (19) is provided on the annular surface of the sealing block (18); the clamping groove (19) is an annular groove; when the sealing block (18) abuts against one side of the retaining ring (17), a rubber ring (20) is inserted into the interior of the clamping groove (19); and the rubber ring (20) is fixed inside the oil filling port (14).

6. The wear-resistant pin according to claim 5, characterized in that: A notch (21) is formed on the surface of the sealing block (18) away from the retaining ring (17), and a pull rod (22) is fixed on the surface of the notch (21).

7. The wear-resistant pin according to claim 1, characterized in that: A sealing gasket (23) is sleeved and fixed on the outer ring surface of the sleeve ring (6). The sealing gasket (23) is a circular ring plate with an "L"-shaped cross section. One end of the sealing gasket (23) is fixed to the surface of the end plate (7).

8. The wear-resistant pin according to claim 1, characterized in that: A plurality of oil seepage holes (10) are provided, and the plurality of oil seepage holes (10) are arranged and distributed at equal distances and in equal sizes along the outer ring surface of the collar (6).

9. The wear-resistant pin according to claim 1, characterized in that: A steel ball (13) is arranged inside the oil storage chamber (8).

Images