Self-lubricating gear shaft

Abstract

The utility model relates to the technical field of gear shafts, and discloses a self-lubricating gear shaft which comprises a gear shaft body, a bearing is installed at one end of the gear shaft body, a self-lubricating sleeve is installed on the outer surface of the bearing, a connecting pipe is arranged on the outer surface of the self-lubricating sleeve, a connecting sleeve is arranged on the outer surface of the gear shaft body, and a gear disc is arranged on the outer side of the connecting sleeve. One end of the oil outlet hole extends into the oil conveying pipeline, the gear disc is installed on the outer surface of the connecting sleeve through a connecting assembly, and a filtering assembly is arranged in the connecting pipe. The ejector pin extends into the circular hole, one end of the ejector pin makes contact with the fixing block, the fixing block is squeezed, the fixing block is gradually separated from the interior of the fixing groove, after the fixing block is completely separated from the fixing groove, the gear disc is pulled outwards, the gear disc is separated from the connecting sleeve, and then the gear disc is disassembled. When the gear disc is damaged, the gear shaft body does not need to be replaced, and therefore the effect of saving materials is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear shafts, in particular to a self-lubricating gear shaft. Background Art

[0002] A gear shaft refers to a mechanical part that supports a rotating part and rotates with it to transmit motion, torque or bending moment. It is generally in the shape of a metal round rod, and each section can have different diameters.

[0003] The utility model patent application document with publication number "CN221278396U" discloses a gear shaft with a self-lubricating component based on a new energy vehicle motor. It is mainly composed of a gear shaft body, a gear plate, a gear bar, a gear oil pipe, an oil outlet, an oil pipe outlet, an oil tank, an oil inlet, a bearing, a self-lubricating sleeve and a connecting pipe. This technical solution uses the bearings, self-lubricating sleeve and connecting pipe to enable the gear shaft to transport lubricating oil for lubrication during operation, thereby avoiding the gear shaft from being subjected to high friction during operation, thereby improving the service life of the gear shaft.

[0004] The gear shaft disclosed in the above document has the following defects: in the prior art, the gear shaft and the gear plate are an integrally formed structure. After a long period of use, the gear bar of the gear plate is more likely to wear out. Therefore, when replacing a damaged gear plate, the gear shaft needs to be replaced together, which results in a waste of materials.

[0005] It can be seen from this that the existing gear shaft does not have a structure for replacing the gear plate, and it is necessary to improve the existing shortcomings and provide a self-lubricating gear shaft. Utility Model Content

[0006] The purpose of the present invention is to provide a self-lubricating gear shaft to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The utility model is a self-lubricating gear shaft, comprising a gear shaft body, a bearing installed at one end of the gear shaft body, a self-lubricating sleeve installed on the outer surface of the bearing, a connecting pipe provided on the outer surface of the self-lubricating sleeve, a connecting sleeve provided on the outer surface of the gear shaft body, a gear plate provided on the outer side of the connecting sleeve, an oil pipeline provided inside the gear shaft body, an oil inlet hole provided at one end of the gear shaft body, an oil outlet hole provided on the outer surface of the gear plate, one end of the oil outlet hole extending to the interior of the oil pipeline, the gear plate installed on the outer surface of the connecting sleeve through a connecting assembly, and a filter assembly provided inside the connecting pipe.

[0009] Furthermore, the filter assembly includes a cylinder, an oil outlet pipe is provided on the lower surface of the cylinder, an oil inlet pipe is provided on the outer surface of the cylinder, a cover body is threadedly connected to the outer surface of the cylinder, the inner thread of the connecting pipe is connected to the oil outlet pipe, and a filter element is provided inside the oil outlet pipe.

[0010] Furthermore, a magnetic rod is installed on the lower surface of the cover.

[0011] Furthermore, the connecting assembly includes a limit block, a limit block is provided on the inner surface of the gear plate, a mounting groove is provided on the outer surface of the limit block, a slide groove is provided on the inner surface of the mounting groove, a baffle is installed inside the mounting groove, a slide is slidably connected inside the slide groove, a fixed block is provided at one end of the slide, a spring is installed at the other end of the slide, the other end of the spring is installed on the inner surface of the slide groove, and one end of the fixed block passes through the baffle and extends outward.

[0012] Furthermore, a guide rod is provided at one end of the baffle, and a slide plate is slidably connected to the outer surface of the guide rod.

[0013] Furthermore, a limiting groove is provided on the outer surface of the connecting sleeve, a fixing groove is provided on the inner surface of the limiting groove, a limiting block is installed inside the limiting groove, a fixing block is installed inside the fixing groove, and a circular hole is provided at one end of the connecting sleeve, and one end of the circular hole extends to the inside of the fixing groove.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model extends the ejector pin into the inside of the circular hole so that one end of the ejector pin contacts the fixed block and displaces the fixed block so that the fixed block gradually detaches from the inside of the fixed groove. When the fixed block is completely detached from the fixed groove, the gear plate is pulled outward to separate the gear plate from the connecting sleeve, thereby completing the disassembly of the gear plate. When the gear plate is damaged, there is no need to replace the gear shaft body, thereby achieving the effect of saving materials.

[0016] (2) The utility model can filter the lubricating oil by setting up a filter component to prevent impurities in the lubricating oil from entering the interior of the oil pipeline and then clogging the oil outlet hole, affecting the lubrication of the gear plate by the lubricating oil.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

[0020] Figure 2 This is an exploded view of the overall structure of the utility model;

[0021] Figure 3 This is a cross-sectional view of the overall structure of the utility model;

[0022] Figure 4 For this utility model Figure 3 A schematic diagram of the structure at center A;

[0023] Figure 5 This is an exploded view of the filter assembly structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the gear plate and connecting components of the utility model;

[0025] Figure 7 For this utility model Figure 6 A magnified schematic diagram of the structure at point B in the middle;

[0026] Figure 8 This is a schematic diagram of the structure of the connecting sleeve of the utility model;

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] In the figure: 1. Gear shaft body; 101. Connecting sleeve; 102. Oil pipeline; 103. Oil inlet hole; 104. Limiting groove; 105. Fixing groove; 106. Round hole; 2. Bearing; 3. Self-lubricating sleeve; 301. Connecting pipe; 4. Gear plate; 5. Oil outlet hole; 6. Connecting assembly; 601. Limiting block; 602. Mounting groove; 603. Slide groove; 604. Baffle; 605. Slide plate; 606. Fixing block; 607. Spring; 608. Guide rod; 7. Filter assembly; 701. Cylinder; 702. Oil outlet pipe; 703. Oil inlet pipe; 704. Cover; 705. Filter element; 706. Magnetic rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1 - Figure 8 As shown, the utility model is a self-lubricating gear shaft, including a gear shaft body 1, a bearing 2 is mounted on one end of the gear shaft body 1, a self-lubricating sleeve 3 is mounted on the outer surface of the bearing 2, a connecting tube 301 is provided on the outer surface of the self-lubricating sleeve 3, a connecting sleeve 101 is provided on the outer surface of the gear shaft body 1, a gear plate 4 is provided on the outer side of the connecting sleeve 101, an oil pipeline 102 is opened inside the gear shaft body 1, an oil inlet hole 103 is opened at one end of the gear shaft body 1, an oil outlet hole 5 is opened on the outer surface of the gear plate 4, one end of the oil outlet hole 5 extends to the interior of the oil pipeline 102, the gear plate 4 is mounted on the outer surface of the connecting sleeve 101 through a connecting assembly 6, and a filter assembly 7 is provided inside the connecting tube 301;

[0031] By providing the connecting assembly 6, the gear plate 4 can be separated from the connecting sleeve 101, thereby completing the disassembly of the gear plate 4. When the gear plate 4 is damaged, there is no need to replace the gear shaft body 1, thereby achieving the effect of saving materials;

[0032] By providing a filter assembly 7, the lubricating oil can be filtered to prevent impurities in the lubricating oil from entering the interior of the oil pipeline 102, thereby clogging the oil outlet hole 5 and affecting the lubrication of the gear plate 4;

[0033] The filter assembly 7 includes a cylinder 701, an oil outlet pipe 702 is provided on the lower surface of the cylinder 701, an oil inlet pipe 703 is provided on the outer surface of the cylinder 701, a cover 704 is threadedly connected to the outer surface of the cylinder 701, the inner surface of the connecting pipe 301 is threadedly connected to the oil outlet pipe 702, and a filter element 705 is provided inside the oil outlet pipe 702;

[0034] A magnetic rod 706 is mounted on the lower surface of the cover 704;

[0035] The connecting assembly 6 includes a limit block 601. The limit block 601 is provided on the inner surface of the gear plate 4. The outer surface of the limit block 601 is provided with a mounting groove 602. The inner surface of the mounting groove 602 is provided with a slide groove 603. A baffle 604 is installed inside the mounting groove 602. A slide plate 605 is slidably connected to the slide groove 603. One end of the slide plate 605 is provided with a fixed block 606. The other end of the slide plate 605 is installed with a spring 607. The other end of the spring 607 is installed on the inner surface of the slide groove 603. One end of the fixed block 606 passes through the baffle 604 and extends outward.

[0036] A guide rod 608 is provided at one end of the baffle 604, and a slide plate 605 is slidably connected to the outer surface of the guide rod 608;

[0037] A limiting groove 104 is provided on the outer surface of the connecting sleeve 101, a fixing groove 105 is provided on the inner surface of the limiting groove 104, a limiting block 601 is installed inside the limiting groove 104, and a fixing block 606 is installed inside the fixing groove 105. A circular hole 106 is provided at one end of the connecting sleeve 101, and one end of the circular hole 106 extends to the inside of the fixing groove 105.

[0038] When in use, first install the external oil delivery pipe on the oil inlet pipe 703. When the gear shaft body 1 rotates, the gear shaft body 1 drives the gear plate to rotate 4, and the bearing 2 will also rotate. The self-lubricating sleeve 3 will be fixed in position through the bearing 2, and the lubricating oil enters the interior of the cylinder 701 through the oil inlet pipe 703. The iron impurities in the lubricating oil can be adsorbed by the provided magnetic rod 706. The lubricating oil in the cylinder 701 is filtered by the filter element 705 and then enters the self-lubricating sleeve 3 through the oil outlet pipe 702, and enters the interior of the oil delivery pipe 102 through the oil inlet hole 103. Then the lubricating oil is delivered to the gear bar of the gear plate 4 through the oil outlet hole 5, thereby lubricating the gear bar. The lubricating oil can be filtered by the provided filter assembly 7 to prevent impurities in the lubricating oil from entering the interior of the oil delivery pipe 102, thereby blocking the oil outlet hole 5 and affecting the lubrication of the gear plate 4 by the lubricating oil.

[0039] When the gear plate 4 needs to be disassembled, the gear shaft body 1 is first taken out, and the ejector pin is inserted into the circular hole 106 so that one end of the ejector pin contacts the fixing block 606 and the fixing block 606 is displaced so that the fixing block 606 gradually disengages from the fixing groove 105. When the fixing block 606 is completely disengaged from the fixing groove 105, the gear plate 4 is pulled outward to separate the gear plate 4 from the connecting sleeve 101, thereby completing the disassembly of the gear plate 4. When the gear plate 4 is damaged, there is no need to replace the gear shaft body 1.

[0040] When the gear plate 4 needs to be installed, the gear plate 4 is sleeved on the gear shaft body 1 so that the limit block 601 is aligned with the limit groove 104 and the gear plate 4 is pushed. Since the outer surface of the fixing block 606 is provided with a slope, when one end of the limit block 601 is installed in the limit groove 104, the fixing block 606 pushes the slide plate 605 to move into the slide groove 603, and the spring 607 gradually contracts. At this time, the gear plate 4 is continued to be pushed so that the limit block 601 is fully fitted and installed inside the limit groove 104. At the same time, the spring 607 restores its elasticity and pushes the slide plate 605 to reset, so that the fixing block 606 is fitted and installed inside the fixing groove 105, completing the fixed installation of the gear plate 4 and the gear shaft body 1.

[0041] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A self-lubricating gear shaft, comprising a gear shaft body (1), a bearing (2) mounted on one end of the gear shaft body (1), a self-lubricating sleeve (3) mounted on the outer surface of the bearing (2), a connecting pipe (301) disposed on the outer surface of the self-lubricating sleeve (3), a connecting sleeve (101) disposed on the outer surface of the gear shaft body (1), a gear plate (4) disposed on the outer side of the connecting sleeve (101), an oil pipeline (102) disposed inside the gear shaft body (1), an oil inlet hole (103) disposed on one end of the gear shaft body (1), an oil outlet hole (5) disposed on the outer surface of the gear plate (4), one end of the oil outlet hole (5) extending to the interior of the oil pipeline (102), characterized in that: The gear plate (4) is mounted on the outer surface of the connecting sleeve (101) via a connecting assembly (6), and a filter assembly (7) is provided inside the connecting pipe (301).

2. The self-lubricating gear shaft according to claim 1, characterized in that: The filter assembly (7) comprises a cylinder (701), an oil outlet pipe (702) is provided on the lower surface of the cylinder (701), an oil inlet pipe (703) is provided on the outer surface of the cylinder (701), a cover (704) is threadedly connected to the outer surface of the cylinder (701), the inner portion of the connecting pipe (301) is threadedly connected to the oil outlet pipe (702), and a filter element (705) is provided inside the oil outlet pipe (702).

3. The self-lubricating gear shaft according to claim 2, characterized in that: A magnetic rod (706) is installed on the lower surface of the cover (704).

4. The self-lubricating gear shaft according to claim 1, characterized in that: The connecting assembly (6) includes a limit block (601), the inner surface of the gear plate (4) is provided with the limit block (601), the outer surface of the limit block (601) is provided with a mounting groove (602), and the inner surface of the mounting groove (602) is provided with a sliding groove (603); A baffle (604) is installed inside the mounting groove (602), a slide plate (605) is slidably connected inside the slide groove (603), one end of the slide plate (605) is provided with a fixing block (606), the other end of the slide plate (605) is installed with a spring (607), the other end of the spring (607) is installed on the inner surface of the slide groove (603), and one end of the fixing block (606) passes through the baffle (604) and extends outward.

5. The self-lubricating gear shaft according to claim 4, characterized in that: A guide rod (608) is provided at one end of the baffle (604), and a slide plate (605) is slidably connected to the outer surface of the guide rod (608).

6. The self-lubricating gear shaft according to claim 1, characterized in that: A limiting groove (104) is provided on the outer surface of the connecting sleeve (101), a fixing groove (105) is provided on the inner surface of the limiting groove (104), a limiting block (601) is installed in cooperation with the interior of the limiting groove (104), and a fixing block (606) is installed in cooperation with the interior of the fixing groove (105), and a circular hole (106) is provided at one end of the connecting sleeve (101), and one end of the circular hole (106) extends to the interior of the fixing groove (105).

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