CN217198426U

CN217198426U - Pin shaft structure of crawler-type engineering machinery

Info

Publication number: CN217198426U
Application number: CN202220264871.4U
Authority: CN
Inventors: 张伟
Original assignee: Zhengzhou Weichuang Machinery Manufacturing Co ltd
Current assignee: Zhengzhou Weichuang Machinery Manufacturing Co ltd
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-08-16
Anticipated expiration: 2032-02-09

Abstract

The utility model provides a pin shaft structure of crawler-type engineering machinery, which relates to the technical field of pin shafts, and comprises a pin shaft body, wherein one end of the pin shaft body is fixedly connected with a connecting block, the outside of the connecting block is slidably connected with a sealing sleeve, a limiting component used for limiting the sliding of the sealing sleeve is arranged between the sealing sleeve and the connecting block, one end of the pin shaft body, which is far away from the connecting block, is fixedly connected with a sealing platform with a circular cross section, a cavity added with lubricating oil is arranged inside the sealing platform, and a drainage groove is arranged on the side wall of the pin shaft body; install round pin axle to the inside of work piece, seal up the kneck through seal platform and seal cover to carry out spacing fixed to the seal cover through spacing part, make the seal cover can't slide in the connecting block outside, thereby effectually avoided the seal cover to take off because of equipment vibrations appear taking off, and lead to round pin axle and work piece to appear taking off the phenomenon of taking off, the result of use of reinforcing equipment.

Description

Pin shaft structure of crawler-type engineering machinery

Technical Field

The utility model relates to a round pin axle technical field specifically is crawler-type engineering machine tool's round pin axle construction.

Background

The pin shaft is a standard fastener, can be statically and fixedly connected, can also move relative to a connected piece, is mainly used for the hinged part of two parts to form hinged connection, is usually locked by a split pin, is reliable in work and convenient to disassemble, and also needs various pin shafts in crawler-type engineering machinery, so that the pin shaft is reasonably designed, and the work firmness of the engineering machinery can be effectively improved.

The Chinese patent with the publication number of CN210949458U discloses a pin shaft structure of crawler-type engineering machinery, which comprises a boss, wherein a pin shaft main body is arranged on the lower end surface of the boss, a screw thread part is arranged at the lower end of the pin shaft main body, a locking sleeve is arranged on the screw thread part, the pin shaft structure of the crawler-type engineering machinery is used for installing a mounting pin shaft by matching the locking sleeve with the pin shaft main body, an inserting block and a sealing gasket are used for sealing the mounting opening part, so that the mounting is stable, the gasket and a fastening pad improve the adaptability and stability of the installation, an oxidation resistant layer improves the corrosion resistance of the pin shaft, lubricating oil is injected through an oil filling hole, through the arrangement of a through groove, a lubricating groove and an oil guide groove, the lubricating oil is uniformly distributed on the surface of the pin shaft main body, the lubricating effect is improved, the anti-abrasion effect is improved, and the service life of the pin shaft is greatly prolonged, through setting up oxidation resisting layer, fastening pad and leading oil groove etc. have reached the installation stability and the leakproofness that have improved the round pin axle, have improved lubricated effect, have improved the life of round pin axle, and it is relatively poor to have solved sealed effect when present round pin axle installation, leads to round pin axle junction to get into dust gravel easily, leads to round pin axle wearing and tearing to accelerate, the problem that life reduces.

However, above-mentioned technical scheme still has following defect, and along with the vibrations of equipment when using, the lock sleeve appears rotating the pine easily and takes off, leads to appearing the pine easily and taking off between round pin axle and the equipment and influence the use, and when the clearance of round pin axle and equipment is less, the interpolation effect of lubricating oil is not good, and lubricating oil is difficult to get into between round pin axle and the work piece by transition portion.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pin structure of crawler-type engineering machine tool aims at solving the easy vibrations pine of the lock sleeve among the prior art and takes off, the not good problem of interpolation effect of lubricating oil.

In order to achieve the above purpose, the utility model adopts the following technical scheme: crawler-type engineering machine tool's round pin axle construction includes: the hinge pin comprises a hinge pin body, wherein one end of the hinge pin body is fixedly connected with a connecting block, the outside of the connecting block is connected with a sealing sleeve in a sliding manner, a limiting part used for limiting the sliding of the sealing sleeve is arranged between the sealing sleeve and the connecting block, the cross section of one end of the hinge pin body, which is far away from the connecting block, is fixedly connected with a sealing platform, the inside of the sealing platform is provided with a cavity for adding lubricating oil, the side wall of the hinge pin body is provided with a drainage groove, and the top end of the drainage groove is connected with the cavity.

In order to make the utility model discloses have better effect of sealing up the interface, the utility model discloses a further technical scheme does, the seal cover includes that the cross-section is the circular slab, the square cover of one side fixedly connected with of circular slab, just circular slab and the equal sliding connection of square cover are in the outside of connecting block, the lateral wall of circular slab is provided with first sealing washer.

In order to make the utility model discloses have better spacing fixed effect to the seal cover, the utility model discloses a further technical scheme does, spacing part is including seting up at the inside first screw hole of square cover, the second screw hole has been seted up to the lateral wall of connecting block, first screw hole and second screw hole are linked together, just the equal threaded connection in inside of first screw hole and second screw hole has the bolt, the connecting block is square.

In order to make the utility model discloses have the better effect that carries out lubricating oil and add, the utility model discloses a further technical scheme does, the quantity in drainage groove is a plurality of, and a plurality of drainage grooves arrange at the lateral wall of round pin axle body with annular array's form, the bottom fixedly connected with toper piece of cavity, the toper piece sets up the middle part in a plurality of drainage grooves.

In order to make the utility model discloses have the effect that improves the sealed effect of seal table, the utility model discloses a further technical scheme does, the bottom of seal table is provided with the second sealing washer.

In order to make the utility model discloses have the better effect of sealing up the cavity, the utility model discloses a further technical scheme does, the top of seal platform articulates there is the outside apron that is located the cavity, one side fixedly connected with cardboard of apron, the draw-in groove has been seted up at the top of seal platform, the cardboard joint is in the inside of draw-in groove, the length of cardboard is greater than the length of draw-in groove.

The utility model has the advantages that:

1. the utility model discloses when using, will sell the inside of axle installation to the work piece, seal up the kneck through seal platform and seal cover, and carry out spacing fixed to the seal cover through spacing part, make the seal cover can't slide in the connecting block outside, thereby effectually avoided the seal cover to appear taking off because of equipment vibrations, and lead to round pin axle and work piece to appear the phenomenon that takes off, the result of use of reinforcing equipment, and through adding lubricating oil to the inside of cavity, lubricating oil is under the guide of drainage groove, get into the inside of round pin axle body, make lubricating oil have inside direct interpolation to sell between axle body and the work piece, lubricating oil interpolation efficiency has not only been improved, more can be better increase lubricating oil the contact surface with the work piece, the lubricated effect of reinforcing.

2. The utility model discloses when using, inside making cardboard joint to the draw-in groove through rotating the apron, better sealing the cavity, because cardboard length is greater than the draw-in groove, the pulling cardboard that can be better breaks away from the draw-in groove to open the apron and carry out the interpolation of lubricating oil.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a cross-sectional view of an embodiment of the invention.

Fig. 3 is a schematic diagram of a split state according to an embodiment of the present invention.

In the figure: 1. a pin shaft body; 2. connecting blocks; 3. sealing sleeves; 31. a circular plate; 32. a square sleeve; 4. A limiting component; 41. a first threaded hole; 42. a second threaded hole; 43. a bolt; 5. a sealing table; 6. a cavity; 7. a drainage groove; 8. a first seal ring; 9. a conical block; 10. a second seal ring; 11. a cover plate; 12. Clamping a plate; 13. a clamping groove.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1 to 3, the pin structure of the crawler type engineering machine includes: round pin axle body 1, the one end fixedly connected with connecting block 2 of round pin axle body 1, the outside sliding connection of connecting block 2 has seal cover 3, be provided with between seal cover 3 and the connecting block 2 and be used for restricting gliding stop part 4 of seal cover 3, the one end fixedly connected with cross-section that round pin axle body 1 kept away from connecting block 2 is circular shape seal platform 5, cavity 6 that lubricating oil added is seted up to seal platform 5's inside, drainage groove 7 has been seted up to the lateral wall of round pin axle body 1, and the top of drainage groove 7 is together with cavity 6.

In this embodiment, with the inside of round pin axle installation to the work piece, joint department seals through seal platform 5 and seal cover 3, and carry out spacing fixed to seal cover 3 through spacing part 4, make seal cover 3 can't slide in connecting block 2 outsides, thereby effectually avoided seal cover 3 to appear loosening because of equipment vibrations, and lead to round pin axle and work piece to appear the phenomenon of loosening, the result of use of reinforcing equipment, and through adding lubricating oil to the inside of cavity 6, lubricating oil is under the guide of drainage groove 7, get into the inside of round pin axle body 1, make lubricating oil have inside direct interpolation to between round pin axle body 1 and the work piece, lubricating oil addition efficiency has not only been improved, the contact surface of the increase lubricating oil that more can be better and the work piece, the lubricated effect of reinforcing.

Specifically, seal cover 3 includes that the cross-section is circular plate 31, and one side fixedly connected with square cover 32 of circular plate 31, and the equal sliding connection of circular plate 31 and square cover 32 is in the outside of connecting block 2, blocks through circular plate 31 the interface of pintle body 1 and work piece and seals, fixes circular plate 31 through square cover 32.

Further, the side wall of the circular plate 31 is provided with the first sealing ring 8, so that the sealing effect of the circular plate 31 is effectively improved through the sealing ring.

Specifically, the limiting component 4 is including seting up at the inside first screw hole 41 of square cover 32, second screw hole 42 has been seted up to the lateral wall of connecting block 2, first screw hole 41 and second screw hole 42 are linked together, and the equal threaded connection in inside of first screw hole 41 and second screw hole 42 has bolt 43, fix square cover 32 and connecting block 2 through the better of the first screw hole 41 of bolt 43 cooperation and second screw hole 42, and then spacing seal cover 3, effectively avoid seal cover 3 to appear the pine to take off.

Preferably, the connecting block 2 is a square block, so that the second threaded hole 42 in the connecting block 2 and the first threaded hole 41 in the square sleeve 32 can be well aligned.

Specifically, the quantity of drainage groove 7 is a plurality of, and a plurality of drainage grooves 7 arrange at the lateral wall of round pin axle body 1 with the form of annular array, improve the area covered of lubricating oil interpolation.

Preferably, the bottom fixedly connected with toper piece 9 of cavity 6, toper piece 9 set up at the middle part of a plurality of drainage grooves 7, through toper piece 9, make inside entering drainage groove 7 that lubricating oil can be better, avoided lubricating oil to pile up in cavity 6 bottom.

Specifically, the bottom of the sealing table 5 is provided with a second sealing ring 10, so that the sealing effect of the sealing table 5 is improved.

Preferably, the top of seal platform 5 articulates there is the apron 11 that is located the outside of cavity 6, and one side fixedly connected with cardboard 12 of apron 11, draw-in groove 13 has been seted up at the top of seal platform 5, and cardboard 12 joint is in the inside of draw-in groove 13, and it is inside to make cardboard 12 joint to draw-in groove 13 through rotating apron 11, better seals cavity 6.

Specifically, the length of cardboard 12 is greater than the length of draw-in groove 13, and pulling cardboard 12 that can be better breaks away from draw-in groove 13 to open apron 11 and carry out the interpolation of lubricating oil.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. Pin structure of crawler-type engineering machine tool includes: the hinge pin body (1) is characterized in that one end of the hinge pin body (1) is fixedly connected with a connecting block (2), the outer portion of the connecting block (2) is connected with a sealing sleeve (3) in a sliding mode, a limiting component (4) used for limiting the sliding of the sealing sleeve (3) is arranged between the sealing sleeve (3) and the connecting block (2), the cross section of one end, far away from the connecting block (2), of the hinge pin body (1) is a round sealing table (5), a cavity (6) added with lubricating oil is formed in the sealing table (5), a drainage groove (7) is formed in the side wall of the hinge pin body (1), and the top end of the drainage groove (7) is connected with the cavity (6).

2. The pin structure of a crawler-type construction machine according to claim 1, wherein the sealing sleeve (3) comprises a circular plate (31) having a cross-section, a square sleeve (32) is fixedly connected to one side of the circular plate (31), and both the circular plate (31) and the square sleeve (32) are slidably connected to the outside of the connecting block (2).

3. The pin structure of a crawler type working machine according to claim 2, wherein a side wall of the circular plate (31) is provided with a first seal ring (8).

4. The pin shaft structure of the crawler-type engineering machine according to claim 2, wherein the limiting component (4) includes a first threaded hole (41) formed inside the square sleeve (32), a second threaded hole (42) is formed in a side wall of the connecting block (2), the first threaded hole (41) is communicated with the second threaded hole (42), and a bolt (43) is in threaded connection with both the inside of the first threaded hole (41) and the inside of the second threaded hole (42).

5. The pin structure of a crawler type construction machine according to claim 1, wherein the connection block (2) is a square block.

6. The pin shaft structure of the crawler-type engineering machine according to claim 1, wherein the number of the drainage grooves (7) is plural, and the plural drainage grooves (7) are arranged on the side wall of the pin shaft body (1) in an annular array.

7. The pin shaft structure of the crawler-type engineering machine according to claim 6, wherein a conical block (9) is fixedly connected to the bottom of the cavity (6), and the conical block (9) is arranged in the middle of the plurality of drainage grooves (7).

8. The pin structure of a crawler type construction machine according to claim 1, wherein a second seal ring (10) is provided at a bottom of the seal table (5).

9. The pin shaft structure of the crawler-type engineering machine according to any one of claims 1 to 8, wherein a cover plate (11) located outside the cavity (6) is hinged to the top of the sealing table (5), a clamping plate (12) is fixedly connected to one side of the cover plate (11), a clamping groove (13) is formed in the top of the sealing table (5), and the clamping plate (12) is clamped inside the clamping groove (13).

10. The pin structure of a crawler type working machine according to claim 9, wherein the length of the catch plate (12) is greater than the length of the catch groove (13).