CN209990732U

CN209990732U - Positioning device for heavy tracked vehicle track pin shaft

Info

Publication number: CN209990732U
Application number: CN201920732351.XU
Authority: CN
Inventors: 刘海峰; 段德军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-01-24
Anticipated expiration: 2029-05-21

Abstract

The utility model discloses a positioner of heavy tracked vehicle track round pin axle, including the grip-pad connector, be equipped with the pinhole on the grip-pad connector, be equipped with the round pin axle in the pinhole, the left side opening part of pinhole inner wall is equipped with the standing groove, be equipped with the cover in the standing groove and establish at the epaxial wear ring of round pin, the outside of grip-pad connector left end is equipped with the cover and establishes at the epaxial spacing end cover of round pin, install the bolt through the screw thread between the left end of the spacing end cover of annular and grip-pad connector. The utility model discloses simple structure, economical and practical, low in manufacturing cost, the people of being convenient for make, and the fixed firm of round pin axle location, can ensure that the location that the round pin axle can stabilize fixes in the round pin hole on the grip-pad connector, has guaranteed the fail safe nature in the use, is favorable to using widely, has satisfied people's needs.

Description

Positioning device for heavy tracked vehicle track pin shaft

Technical Field

The utility model relates to the technical field of vehicle machinery, especially, relate to a positioner of heavy tracked vehicle track round pin axle.

Background

The traveling system of a heavy tracked vehicle generally consists of tracks, drive wheels, thrust wheels, drag sprockets and guide wheels. The crawler belt is a core component and is a carrier for converting the driving force of the walking motor into the walking power of the whole machine. The creeper tread and the creeper tread connector of the heavy-duty crawler vehicle are generally integrally cast and are connected by a pin shaft penetrating through a pin hole, and the creeper tread connector and the pin shaft are greatly stressed during walking and deform over time. Thus, the reliability of the track pin positioning determines to a large extent the reliability of the crawler.

However, in the prior art, most of the pin shaft positioning methods are that a positioning nut is mounted on a track shoe connecting head near the end of a pin shaft, and after the pin shaft is mounted and positioned, the positioning reliability of the track pin shaft is poor due to the fact that the pin shaft is not firmly positioned, so that the reliability of a track walking device is affected, and the use requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a positioning device for a heavy tracked vehicle track pin shaft.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a positioning device for a track pin shaft of a heavy tracked vehicle comprises a track shoe connector, wherein a pin hole is formed in the track shoe connector, a pin shaft is arranged in the pin hole, a placing groove is formed in a left opening of the inner wall of the pin hole, a wear-resisting ring sleeved on the pin shaft is arranged in the placing groove, an annular limiting end cover sleeved on the pin shaft is arranged on the outer side of the left end of the track shoe connector, and a bolt is arranged between the annular limiting end cover and the left end of the track shoe connector through threads;

a groove is formed in the right opening of the inner wall of the pin hole, a guide limiting block is fixedly connected to the right end of the pin shaft and is arranged in the groove, thread grooves are formed in two sides of the guide limiting block, through holes are formed in the inner walls of the two sides of the groove, positioning studs are arranged in the thread grooves in a threaded mode, and the positioning studs penetrate through the outer side of the through holes and are fixedly connected with inner hexagon nut heads;

the outer side opening of the inner wall of the through hole is provided with a spring groove, a spring sleeved on the positioning stud is arranged in the spring groove, and one end of the spring is abutted to the inner wall of the inner side of the spring groove.

Preferably, an annular gasket sleeved on the positioning stud is arranged between the socket head cap nut head and the track shoe connector, and one end of the spring is abutted against the inner side of the annular gasket.

Preferably, an inner hexagonal groove is formed in the outer side end of the socket head nut.

Preferably, the outer surface of the positioning stud is provided with an external thread, the inner wall of the thread groove is provided with an internal thread, and the external thread on the positioning stud is matched with the internal thread on the inner wall of the thread groove.

Preferably, the direction stopper is the rectangular block, the recess is the rectangular channel, and the direction stopper closely contacts with the inner wall of recess.

Preferably, the both sides of grip-pad connector left end all are equipped with the bolt groove, the one end of bolt runs through the spacing end cover of annular and with bolt groove threaded connection, and be equipped with the through hole with bolt looks adaptation on the spacing end cover of annular.

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

the utility model provides a heavy tracked vehicle track pin shaft's positioner, the one end and the direction stopper fixed connection of round pin axle, and the one end of round pin axle utilizes the direction stopper location fixed mounting in the recess, utilize the screw thread groove on positioning stud and the direction stopper to carry out the screw thread location fixed, the both ends of spring are compressed by the extrusion simultaneously, after the positioning stud carries out the screw thread fixed, the spring produces the reaction of elasticity, can make the external screw thread on the positioning stud and the internal thread interlock on the screw thread groove inner wall inseparabler, guaranteed threaded connection's reliability; on the other hand, the other end of the pin shaft is limited and fixed through the wear-resisting ring and the annular end cover, and finally, the pin shaft can be stably positioned and fixed in a pin hole in the creeper tread connector, so that the safety and reliability in the use process are ensured;

to sum up, the utility model discloses simple structure, economical and practical, low in manufacturing cost, the people of being convenient for make, and the fixed firm of round pin axle location, can ensure that the location that the round pin axle can stabilize fixes in the pinhole on the grip-pad connector, has guaranteed the fail safe nature in the use, is favorable to using widely, has satisfied people's needs.

Drawings

Fig. 1 is a schematic structural view of a positioning device for a track pin of a heavy tracked vehicle according to the present invention;

fig. 2 is a schematic structural view of the pin shaft of the present invention;

fig. 3 is an enlarged schematic structural view of a portion a in fig. 1.

In the figure: the crawler plate comprises a crawler plate connector 1, pin holes 2, pin shafts 3, guide limiting blocks 4, wear-resisting rings 5, annular limiting end covers 6, bolts 7, bolt grooves 8, hexagon socket head nuts 9, positioning studs 10, thread grooves 11, through holes 12, spring grooves 13, annular gaskets 14, grooves 15, springs 16 and placing grooves 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the positioning device for the crawler belt pin shaft of the heavy crawler belt vehicle comprises a crawler belt plate connector 1, wherein a pin hole 2 is formed in the crawler belt plate connector 1, a pin shaft 3 is arranged in the pin hole 2, a placing groove 17 is formed in a left opening of the inner wall of the pin hole 2, a wear-resisting ring 5 sleeved on the pin shaft 3 is arranged in the placing groove 17, an annular limiting end cover 6 sleeved on the pin shaft 3 is arranged on the outer side of the left end of the crawler belt plate connector 1, and a bolt 7 is installed between the annular limiting end cover 6 and the left end of the;

a groove 15 is formed in the right opening of the inner wall of the pin hole 2, a guide limiting block 4 is fixedly connected to the right end of the pin shaft 3, the guide limiting block 4 is arranged in the groove 15, thread grooves 11 are formed in two sides of the guide limiting block 4, through holes 12 are formed in the inner walls of two sides of the groove 15, positioning studs 10 are mounted in the thread grooves 11 in a threaded mode, and the positioning studs 10 penetrate through the outer side of the through holes 12 and are fixedly connected with hexagon socket head nuts 9;

a spring groove 13 is formed in an opening on the outer side of the inner wall of the through hole 12, a spring 16 sleeved on the positioning stud 10 is arranged in the spring groove 13, and one end of the spring 16 is abutted to the inner wall of the inner side of the spring groove 13; the utility model discloses simple structure, economical and practical, low in manufacturing cost, the people of being convenient for make, and the fixed firm in round pin axle 3 location, can ensure that the location that round pin axle 3 can stabilize fixes in pinhole 2 on grip-pad connector 1, has guaranteed the fail safe nature in the use, is favorable to using widely, has satisfied people's needs.

Specifically, an annular gasket 14 sleeved on the positioning stud 10 is arranged between the socket head cap nut 9 and the track shoe connector 1, and one end of the spring 16 is abutted against the inner side of the annular gasket 14; an inner hexagonal groove is formed in the outer side end of the inner hexagon nut head 9; the outer surface of the positioning stud 10 is provided with an external thread, the inner wall of the thread groove 11 is provided with an internal thread, and the external thread on the positioning stud 10 is matched with the internal thread on the inner wall of the thread groove 11; the guide limiting block 4 is a rectangular block, the groove 15 is a rectangular groove, and the guide limiting block 4 is in close contact with the inner wall of the groove 15; both sides of the left end of the track shoe connector 1 are provided with bolt grooves 8, one end of a bolt 7 penetrates through the annular limiting end cover 6 and is in threaded connection with the bolt grooves 8, and the annular limiting end cover 6 is provided with a through hole matched with the bolt 7; the utility model discloses simple structure, economical and practical, low in manufacturing cost, the people of being convenient for make, and the fixed firm in round pin axle 3 location, can ensure that the location that round pin axle 3 can stabilize fixes in pinhole 2 on grip-pad connector 1, has guaranteed the fail safe nature in the use, is favorable to using widely, has satisfied people's needs.

The utility model provides a positioner of heavy tracked vehicle track round pin axle, can make round pin axle 3 carry out firm location fixed in pinhole 2 on creeper tread connector 1, because the one end of round pin axle 3 and direction stopper 4 fixed connection, and the one end of round pin axle 3 utilizes direction stopper 4 location fixed mounting in recess 15, specifically, utilize positioning stud 10 and the thread groove 11 on the direction stopper 4 to carry out the screw thread location fixed, the both ends of spring 13 are extruded simultaneously and compressed, after positioning stud 10 carries out the screw thread fixation, spring 13 produces the reaction of elasticity, can make the external screw thread on positioning stud 10 and the internal thread interlock on the thread groove 11 inner wall inseparabler, guaranteed threaded connection's reliability; on the other hand, the other end of the pin shaft 3 is limited and fixed through a wear-resisting ring 5 and an annular end cover 6, and finally, the pin shaft 3 can be stably positioned and fixed in the pin hole 2 on the creeper tread connector 1; the utility model discloses simple structure, economical and practical, low in manufacturing cost, the people of being convenient for make, and the fixed firm in round pin axle 3 location is favorable to using widely, has satisfied people's needs.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The positioning device for the crawler belt pin shaft of the heavy crawler belt vehicle comprises a crawler belt plate connector (1) and is characterized in that a pin hole (2) is formed in the crawler belt plate connector (1), a pin shaft (3) is arranged in the pin hole (2), a placing groove (17) is formed in a left opening of the inner wall of the pin hole (2), a wear-resisting ring (5) sleeved on the pin shaft (3) is arranged in the placing groove (17), an annular limiting end cover (6) sleeved on the pin shaft (3) is arranged on the outer side of the left end of the crawler belt plate connector (1), and a bolt (7) is arranged between the annular limiting end cover (6) and the left end of the crawler belt plate connector (1) through threads;

a groove (15) is formed in the right side opening of the inner wall of the pin hole (2), a guide limiting block (4) is fixedly connected to the right end of the pin shaft (3), the guide limiting block (4) is arranged in the groove (15), thread grooves (11) are formed in the two sides of the guide limiting block (4), through holes (12) are formed in the inner walls of the two sides of the groove (15), positioning studs (10) are installed in the thread grooves (11) in a threaded mode, and the positioning studs (10) penetrate through the outer side of the through holes (12) and are fixedly connected with inner hexagon nut heads (9);

the outer side opening of the inner wall of the through hole (12) is provided with a spring groove (13), a spring (16) sleeved on the positioning stud (10) is arranged in the spring groove (13), and one end of the spring (16) is abutted to the inner wall of the inner side of the spring groove (13).

2. The positioning device for the heavy-duty track-laying vehicle track pin shaft according to claim 1, characterized in that an annular gasket (14) sleeved on the positioning stud (10) is arranged between the socket head cap nut (9) and the track shoe connector (1), and one end of the spring (16) is in abutting contact with the inner side of the annular gasket (14).

3. The positioning device for the heavy-duty crawler vehicle track pin shaft according to claim 1, wherein an inner hexagonal groove is formed in the outer side end of the inner hexagonal nut head (9).

4. The positioning device for the heavy track vehicle track pin shaft according to claim 1, characterized in that the outer surface of the positioning stud (10) is provided with an external thread, the inner wall of the thread groove (11) is provided with an internal thread, and the external thread on the positioning stud (10) is matched with the internal thread on the inner wall of the thread groove (11).

5. The positioning device for the heavy-duty track-laying vehicle track pin shaft as claimed in claim 1, wherein the guide limit block (4) is a rectangular block, the groove (15) is a rectangular groove, and the guide limit block (4) is in close contact with the inner wall of the groove (15).

6. The positioning device for the heavy track-laying vehicle track pin shaft according to claim 1, characterized in that bolt grooves (8) are formed in two sides of the left end of the track shoe connector (1), one end of each bolt (7) penetrates through the annular limiting end cover (6) and is in threaded connection with the bolt groove (8), and through holes matched with the bolts (7) are formed in the annular limiting end cover (6).