CN219221221U

CN219221221U - Self-lubricating gear shaft

Info

Publication number: CN219221221U
Application number: CN202223366949.2U
Authority: CN
Inventors: 张敏; 韩文辉
Original assignee: Zhangjiagang Aachen Machinery Co ltd
Current assignee: Zhangjiagang Aachen Machinery Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-06-20
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a self-lubricating gear shaft, which comprises a transmission shaft body, wherein a plurality of gears which are distributed in an annular equidistant manner are arranged on the outer wall of the transmission shaft body, an oil storage chamber is arranged in the transmission shaft body, connecting cavities are arranged on two sides of the oil storage chamber, the self-lubricating gear shaft also comprises leakage-proof cavities which are arranged outside the oil storage chamber, four leakage-proof cavities are distributed in an annular equidistant manner, sealing plates are arranged in the leakage-proof cavities, rubber blocks are adhered and fixed at the middle positions of the inner sides of the sealing plates, the leakage-proof cavities are communicated through oil outlet communication cavities, the self-lubricating gear shaft also comprises a fixing sleeve which is fixedly arranged at two ends of the transmission shaft body, one end of the outer part of the fixing sleeve is provided with a limiting pipe, and the other end of the outer part of the fixing sleeve is provided with four storage grooves which are distributed in an annular equidistant manner. The self-lubricating gear shaft has a good lubricating effect, and can effectively prevent lubricating oil from leaking when the gear shaft is not used, so that the self-lubricating gear is convenient to use.

Description

Self-lubricating gear shaft

Technical Field

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

Background

The gear shaft refers to a mechanical part which supports and rotates together with a rotating part to transmit motion, torque or bending moment, the mechanical part is generally in a metal round bar shape, each section can have different diameters, the part which rotates in the machine is arranged on the shaft, the shaft can be divided into a crank shaft and a straight shaft according to different axial shapes, gears on the gear shaft cannot be lubricated during rotation, enough lubrication can reduce damage of the gears, and the service life of the gears is prolonged.

The chinese patent of current application No. CN208417227U discloses a self-lubricating input gear shaft, including the axle body, the axle body is provided with the through-hole along the axial, the axle body includes first cylinder portion, the one end of first cylinder portion is provided with second cylinder portion, the one end of second cylinder portion is provided with the toper boss, be provided with first helicla flute and second helicla flute on the periphery of first cylinder portion, the spiral direction of first helicla flute is opposite with the spiral direction of second helicla flute, be provided with first oilhole on the periphery of first cylinder portion, first oilhole and through-hole are linked together, the axis of first oilhole and through-hole inclines mutually.

The scheme has better lubricating effect, can effectively reduce the abrasion and corrosion of the gear shaft and ensure the service life of the gear shaft, but the self-lubricating gear shaft lacks an oil leakage preventing function, so that the lubricating oil inside the self-lubricating gear shaft is easy to leak when the gear shaft is not applicable, and the prior requirement is not met, so that the self-lubricating gear shaft is provided.

Disclosure of Invention

The utility model aims to provide a self-lubricating gear shaft so as to solve the problem that internal lubricating oil is easy to leak when the gear shaft proposed in the background art is not used.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the self-lubricating gear shaft comprises a transmission shaft body, wherein a plurality of gears which are distributed in an annular equidistant manner are arranged on the outer wall of the transmission shaft body, an oil storage chamber is formed in the transmission shaft body, and connecting cavities are formed in two sides of the oil storage chamber;

the oil storage device comprises an oil storage chamber, and is characterized by further comprising leakage-proof cavities which are arranged outside the oil storage chamber, wherein four leakage-proof cavities are distributed at equal intervals in an annular shape, sealing plates are arranged inside the leakage-proof cavities, rubber blocks are adhered and fixed at the middle positions of the inner sides of the sealing plates, and the leakage-proof cavities are communicated through oil outlet communication cavities;

still including fixed cover, its fixed setting is in the both ends of transmission shaft body, the outside one end of fixed cover all is provided with spacing pipe, four storage tanks that are annular equidistance and distribute have all been seted up to the outside other end of fixed cover, the inside of storage tank all runs through and is provided with the connecting block, and the connecting block all with storage tank sliding fit.

Preferably, a group of compression springs are arranged at the lower ends of two sides of the cover plate, two compression springs are arranged in each group, and one ends of the compression springs are connected with the leakage-proof cavity.

Preferably, an oil outlet groove is formed in one side of the gear, and the oil outlet groove is communicated with the leakage-proof cavity and the oil outlet communicating cavity through oil delivery pipes.

Preferably, the connecting block is located the inside one end of storage tank and all welds there is the arc to press the board.

Preferably, the connecting block is located the inside one end of fixed cover and all adheres fixedly with arc extrusion piece, and the arc extrusion piece is the rubber material.

Preferably, the outer wall of the fixed sleeve is provided with annular external threads which are uniformly distributed, and the inside of the limiting pipe is provided with internal threads which are matched with the external threads.

Preferably, a plurality of oil outlet holes which are distributed at equal intervals are formed between the leakage-proof cavity and the oil storage chamber.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the oil storage chamber, the four annular leakage-proof cavities which are distributed at equal intervals are formed outside the oil storage chamber, when the gear shaft is not used, the oil outlet is blocked by the rubber block under the pulling of the compression spring, so that leakage of lubricating oil is effectively prevented, when the oil storage chamber is used, the compression spring is stretched under the action of centrifugal force, so that the sealing cover plate drives the rubber block to be separated from the oil outlet, lubricating oil can enter the leakage-proof cavities from the oil storage chamber, and then the leakage-proof cavities enter the oil delivery pipe, and self-lubricating operation is facilitated.

2. According to the utility model, the fixing sleeves are arranged on the two sides of the transmission shaft body, when the external oil conveying pipeline enters the oil storage chamber through the connecting cavity to convey lubricating oil, the arc-shaped pressing plate is pressed to enable the arc-shaped pressing plate to enter the storage groove, so that the penetrated external oil conveying pipeline can be fixed through the arc-shaped pressing plate, and then the arc-shaped pressing plate is limited by moving the rotation limiting pipe to the upper side of the storage groove, so that the fixation of the external oil conveying pipeline can be ensured, and the falling of the pipeline during oil conveying can be prevented.

3. According to the utility model, the oil outlet groove is formed in one side of the gear, and when the transmission shaft body rotates, the oil outlet groove is directly formed in one side of the gear, so that lubricating oil can directly act on the joint of the gear, the lubricating effect is obvious, and the daily use is convenient.

Drawings

FIG. 1 is a front view of the internal structure of the present utility model;

FIG. 2 is a side view of the internal structure of the present utility model;

FIG. 3 is a side view of the internal structure of the retaining sleeve of the present utility model;

fig. 4 is an enlarged view of a portion of the area a of fig. 1 in accordance with the present utility model.

In the figure: 1. a drive shaft body; 2. a gear; 3. an oil storage chamber; 4. a connecting cavity; 5. a leak-proof cavity; 6. an oil outlet hole; 7. a cover plate; 8. a rubber block; 9. a compression spring; 10. an oil delivery pipe; 11. an oil outlet groove; 12. a fixed sleeve; 13. a limiting tube; 14. a storage groove; 15. an arc-shaped pressing plate; 16. a connecting block; 17. arc extrusion blocks; 18. an external thread; 19. and the oil outlet is communicated with the cavity.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the self-lubricating gear shaft comprises a transmission shaft body 1, wherein a plurality of gears 2 which are distributed in an annular equidistant manner are arranged on the outer wall of the transmission shaft body 1, an oil storage chamber 3 is arranged in the transmission shaft body 1, and connecting cavities 4 are arranged on two sides of the oil storage chamber 3;

the oil storage device further comprises leakage-proof cavities 5 which are arranged outside the oil storage chamber 3, the four leakage-proof cavities 5 are distributed in an annular equidistant mode, sealing cover plates 7 are arranged inside the leakage-proof cavities 5, rubber blocks 8 are adhered and fixed at the middle positions of the inner sides of the sealing cover plates 7, and the leakage-proof cavities 5 are communicated through oil outlet communication cavities 19;

still include fixed cover 12, its fixed both ends that set up at transmission shaft body 1, the outside one end of fixed cover 12 all is provided with spacing pipe 13, and four storage tanks 14 that are annular equidistance and distribute are all seted up to the outside other end of fixed cover 12, and the inside of storage tank 14 all runs through and is provided with connecting block 16, and connecting block 16 all with storage tank 14 sliding fit.

Referring to fig. 2 and 4, a set of compression springs 9 are disposed at the lower ends of two sides of the cover plate 7, two compression springs 9 are disposed in each set, one end of each compression spring 9 is connected with the anti-leakage cavity 5, when the transmission shaft body 1 does not rotate, the cover plate 7 is driven to block the oil outlet 6 by the rubber block 8 under the pulling of the compression springs 9, so that the leakage of lubricating oil is effectively prevented;

referring to fig. 1 and 2, an oil outlet groove 11 is formed on one side of the gear 2, the oil outlet groove 11 is communicated with the leakage-proof cavity 5 and the oil outlet communicating cavity 19 through an oil conveying pipe 10, lubricating oil can be conveyed to the oil outlet groove 11 through the oil conveying pipe 10, and meanwhile, the oil outlet groove 11 is directly formed on one side of the gear 2, so that the lubricating oil can directly act on the joint of the gear 2, and the lubricating effect is obvious;

referring to fig. 1 and 3, one end of a connecting block 16, which is located inside a storage groove 14, is welded with an arc pressing plate 15, and the force application point for pressing the connecting block 16 is increased by the arc pressing plate 15, so that the arc pressing block 17 can conveniently press a penetrating external oil pipeline through the connection transmission of the connecting block 16;

referring to fig. 1 and 3, one end of the connecting block 16, which is located inside the fixing sleeve 12, is adhered and fixed with an arc extrusion block 17, the arc extrusion block 17 is made of rubber, and the arc extrusion block 17 is made of rubber, has certain elasticity, can play a role in skid resistance, and can avoid abrasion to an external oil pipeline during fixing;

referring to fig. 1, the outer wall of the fixing sleeve 12 is provided with annular external threads 18 which are uniformly distributed, the inside of the limiting tube 13 is provided with internal threads which are matched with the external threads 18, and the internal threads of the inside of the limiting tube 13 are matched with the threads of the external threads 18, so that the fixing sleeve 12 is not easy to move after moving, and the limiting effect of the limiting tube 13 on the arc-shaped pressing plate 15 is ensured;

referring to fig. 2 and 4, a plurality of oil outlet holes 6 are formed between the leakage preventing cavity 5 and the oil storage chamber 3, and the oil outlet holes 6 can reduce the communication area between the oil storage chamber 3 and the leakage preventing cavity 5, so that the rubber block 8 is convenient to block.

Working principle: during the use, pass outside oil pipeline and insert in connecting chamber 4 with fixed cover 12, press arc pressing plate 15 this moment, make arc pressing plate 15 get into and accomodate in the groove 14, can drive arc extrusion piece 17 under the connection transmission of connecting block 16 and extrude outside oil pipeline that passes in step, can accomplish the fixed to outside oil pipeline through the extrusion of four arc extrusion pieces 17, rethread external screw thread 18 rotates spacing pipe 13, make spacing pipe 13 remove to accomodate the top of groove 14, arc pressing plate 15 in the groove 14 carries out spacingly, thereby make arc extrusion piece 17 can firmly fix outside oil pipeline, prevent droing of pipeline when the oil transportation, under the pulling of compression spring 9, can drive seal plate 7 and make rubber piece 8 block up oil outlet 6, thereby effectively prevent the spill of lubricating oil, when transmission shaft 1 rotates and uses, the centrifugal force that transmission shaft 1 rotates and produce is greater than when compression spring 9 self elasticity, can lead to seal plate 7 extension compression spring 9, thereby make seal plate 7 drive piece 8 and oil outlet 6 separate to the top, prevent the drop off of pipeline when oil transportation room 3, can be directly connected through the oil transportation groove 10, thereby can be directly connected to the oil transportation pipe 2 through the oil transportation groove 11, thereby the place is directly connected to the place through the oil transportation groove 11, the position is opened in order to make the oil transportation pipe 2.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a self-lubricating gear shaft, includes transmission shaft body (1), the outer wall of transmission shaft body (1) is provided with a plurality of and is annular equidistance distributed gear (2), oil storage chamber (3) have been seted up to the inside of transmission shaft body (1), connecting chamber (4) have been seted up in the both sides of oil storage chamber (3), its characterized in that:

the oil storage device further comprises leakage-proof cavities (5) which are arranged outside the oil storage chamber (3), the four leakage-proof cavities (5) are distributed in an annular equidistant mode, sealing cover plates (7) are arranged inside the leakage-proof cavities (5), rubber blocks (8) are adhered and fixed at middle positions inside the sealing cover plates (7), and the leakage-proof cavities (5) are communicated through oil outlet communication cavities (19);

still including fixed cover (12), its fixed setting is in the both ends of transmission shaft body (1), the outside one end of fixed cover (12) all is provided with spacing pipe (13), four storage tank (14) that are annular equidistance and distribute are all seted up to the outside other end of fixed cover (12), the inside of storage tank (14) all runs through and is provided with connecting block (16), and connecting block (16) all with storage tank (14) sliding fit.

2. A self-lubricating gear shaft as defined in claim 1, wherein: the lower extreme of closing cap board (7) both sides all is provided with a set of compression spring (9), and every compression spring (9) of group all is provided with two, and the one end of compression spring (9) all is connected with leak protection chamber (5).

3. A self-lubricating gear shaft as defined in claim 1, wherein: an oil outlet groove (11) is formed in one side of the gear (2), and the oil outlet groove (11) is communicated with the leakage-proof cavity (5) and the oil outlet communicating cavity (19) through an oil conveying pipe (10).

4. A self-lubricating gear shaft as defined in claim 1, wherein: one end of the connecting block (16) positioned in the storage groove (14) is welded with an arc-shaped pressing plate (15).

5. A self-lubricating gear shaft as defined in claim 1, wherein: the connecting block (16) is located the inside one end of fixed cover (12) and all adheres to and be fixed with arc extrusion piece (17), and arc extrusion piece (17) are the rubber material.

6. A self-lubricating gear shaft as defined in claim 1, wherein: annular uniformly distributed external threads (18) are formed on the outer wall of the fixing sleeve (12), and internal threads matched with the external threads (18) are formed inside the limiting pipe (13).

7. A self-lubricating gear shaft as defined in claim 1, wherein: a plurality of oil outlet holes (6) which are distributed at equal intervals are formed between the leakage-proof cavity (5) and the oil storage chamber (3).