CN210799571U

CN210799571U - Hydraulic cylinder pin shaft positioning structure for loader

Info

Publication number: CN210799571U
Application number: CN201921758474.7U
Authority: CN
Inventors: 汪朝虎; 曾晓亮
Original assignee: Liaoning Alfa Hydraulic Co ltd
Current assignee: Liaoning Alfa Hydraulic Co ltd
Priority date: 2019-10-20
Filing date: 2019-10-20
Publication date: 2020-06-19
Anticipated expiration: 2029-10-20

Abstract

The utility model relates to a loader field specifically is a pneumatic cylinder round pin axle location structure for loader, the top of pneumatic cylinder is provided with the actuating lever, the bottom of pneumatic cylinder is equipped with the base, the both ends welding of base has fixed ear, the bottom of base is provided with the bottom plate, it has the fixed pin to erect the gomphosis on the bottom plate, and fixed ear cup joints on the fixed pin, the welding of bottom center department of base has the location ear, the front end level of bottom plate runs through there is the locating pin, and the locating pin passes the location ear, the locating pin includes interior pole and urceolus, the urceolus cup joints on interior pole. This application adopts the mode of two-way location to fix the pneumatic cylinder, fixes a position the pneumatic cylinder through the locating pin of bottom plate front end at first, has seted up the recess on the bottom plate, and there is a location ear the base bottom of pneumatic cylinder, will fix a position the ear and imbed the recess in, insert the locating pin afterwards, will fix a position the ear in the recess.

Description

Hydraulic cylinder pin shaft positioning structure for loader

Technical Field

The utility model relates to a loader field specifically is a pneumatic cylinder round pin axle location structure for loader.

Background

The loader is used for shoveling and loading bulk materials such as soil, gravel, lime, coal and the like, and the bulk materials are usually dug and taken by a hydraulic cylinder, and the hydraulic cylinder is generally positioned and fixed by a pin shaft.

The existing hydraulic cylinder pin shaft positioning structure usually uses a bolt to limit and fix a pin shaft, but the positioning has a certain gap, and the produced shearing force easily breaks the bolt. Accordingly, those skilled in the art have provided a hydraulic cylinder pin positioning structure for a loader to solve the problems set forth in the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic cylinder round pin axle location structure for loader is in order to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a pneumatic cylinder round pin axle location structure for loader, includes the pneumatic cylinder, the top of pneumatic cylinder is provided with the actuating lever, the bottom of pneumatic cylinder is equipped with the base, the both ends welding of base has fixed ear, the bottom of base is provided with the bottom plate, it has the fixed pin to erect the gomphosis on the bottom plate, and fixed ear cup joints on the fixed pin, the welding of bottom center department of base has the location ear, the front end level of bottom plate runs through there is the locating pin, and the locating pin passes the location ear.

As a further aspect of the present invention: the locating pin includes interior pole and urceolus, the urceolus cup joints on interior pole, and urceolus both ends are the through structure.

As a further aspect of the present invention: the terminal of interior pole is provided with the inflation head, and sets up in the bottom plate and expands the recess that head and urceolus correspond.

As a further aspect of the present invention: the diameter of the expansion head is twice of the diameter of the cross section of the outer barrel, the outer barrel is fixedly embedded in the groove in the bottom plate, and the expansion head is formed by die-casting spring steel.

As a further aspect of the present invention: the bottom of fixed pin is provided with the round pin cap, and the fixed gomphosis of round pin cap is in the top of bottom plate, the second through-hole has been seted up to the upper end both sides of fixed pin.

As a further aspect of the present invention: the spring is horizontally arranged in the second through hole, the end part of the spring is lapped with an elastic sheet, and the diameter of the tail part of the elastic sheet is equal to that of the second through hole.

As a further aspect of the present invention: the top of fixed pin has cup jointed the restraint cover, and the both sides of restraint cover have seted up first through-hole, and the diameter of first through-hole and the diameter of second through-hole equal.

Compared with the prior art, the beneficial effects of the utility model are that: this application adopts the mode of two-way location to fix the pneumatic cylinder, at first the locating pin through the bottom plate front end is fixed a position the pneumatic cylinder, set up flutedly on the bottom plate, and there is a location ear the base bottom of pneumatic cylinder, it imbeds in the recess to fix a position the ear, insert the locating pin afterwards, fix a position the ear in the recess, the pneumatic cylinder is preliminary fixed a position on the bottom plate this moment, fix the pneumatic cylinder afterwards, a set of fixed pin through the bottom plate top realizes the fixed to the pneumatic cylinder, both ends in the bottom of pneumatic cylinder are equipped with two fixed ears, be equipped with the screw on its fixed ear, through cup jointing fixed ear on the fixed pin, use the restraint cover to fix the restraint afterwards, easy to assemble and quick location.

Drawings

FIG. 1 is a schematic structural view of a hydraulic cylinder pin shaft positioning structure for a loader;

FIG. 2 is a schematic side sectional view of a hydraulic cylinder pin positioning structure for a loader;

FIG. 3 is a schematic view of a positioning pin in a hydraulic cylinder pin positioning structure for a loader;

fig. 4 is a schematic diagram of a fixing pin structure in a hydraulic cylinder pin shaft positioning structure for a loader.

In the figure: 1. a drive rod; 2. a hydraulic cylinder; 3. a base; 4. a base plate; 5. positioning pins; 6. fixing the ear; 7. a fixing pin; 8. positioning the ear; 9. an outer cylinder; 10. an inner rod; 11. an expansion head; 12. a constraining sheath; 13. a spring; 14. a pin cap; 15. a first through hole; 16. a second through hole; 17. an elastic sheet.

Detailed Description

Please refer to fig. 1-3, in an embodiment of the present invention, a hydraulic cylinder pin shaft positioning structure for loader, including the hydraulic cylinder 2, the top of the hydraulic cylinder 2 is provided with the driving rod 1, the bottom of the hydraulic cylinder 2 is equipped with the base 3, the both ends welding of the base 3 has the fixed ear 6, the bottom of the base 3 is provided with the bottom plate 4, it has the fixed pin 7 to erect the gomphosis on the bottom plate 4, and the fixed ear 6 cup joints on the fixed pin 7, the welding of the bottom center department of the base 3 has the location ear 8, the front end level of the bottom plate 4 runs through there is the locating pin 5, and the locating pin.

In fig. 2, the positioning pin 5 comprises an inner rod 10 and an outer cylinder 9, the outer cylinder 9 is sleeved on the inner rod 10, two ends of the outer cylinder 9 are in a through structure, the outer cylinder 9 is embedded in the bottom plate 4 to increase friction on the inner rod 10, and the outer cylinder 9 and the inner rod 10 are embedded to reduce abrasion of the inner rod 10;

in fig. 2, an expansion head 11 is arranged at the tail end of an inner rod 10, grooves corresponding to the expansion head 11 and an outer cylinder 9 are formed in a bottom plate 4, the expansion head 11 is used for limiting the movement of the inner rod 10, when the inner rod 10 is inserted into the outer cylinder 9, the expansion head 11 is compressed through the outer cylinder 9, when the inner rod 10 completely enters the outer cylinder 9, the expansion head 11 can reset, at the moment, the diameter of the expansion head 11 is larger than that of the outer cylinder 9, and the inner rod 10 is restrained;

in fig. 2, the diameter of the expansion head 11 is twice the diameter of the cross section of the outer cylinder 9, the outer cylinder 9 is fixedly embedded in a groove inside the bottom plate 4, the expansion head 11 is made of spring steel by die casting, the spring steel is specially used for manufacturing elastic elements due to the elasticity of the spring steel in a quenching and tempering state, the elasticity of the steel depends on the elastic deformation capacity of the steel, namely, the elastic deformation capacity enables the steel to bear certain load within a specified range, permanent deformation does not occur after the load is removed, and the spring steel has excellent comprehensive performance;

in fig. 2, a pin cap 14 is disposed at the bottom end of the fixing pin 7, the pin cap 14 is fixedly embedded in the top of the bottom plate 4, a second through hole 16 is disposed at two sides of the upper end of the fixing pin 7, the pin cap 14 is used for fixing the fixing pin 7 on the bottom plate 4, and the second through hole 16 is used for accommodating an elastic sheet 17;

in fig. 2, a spring 13 is horizontally arranged in the second through hole 16, an elastic sheet 17 is lapped on the end of the spring 13, the diameter of the tail of the elastic sheet 17 is equal to the diameter of the second through hole 16, the spring 13 provides reset elastic force for the elastic sheet 17, and the elastic sheet 17 is used for being embedded in the first through hole 15, so that the restraining sleeve 12 is fixed on the fixing pin 7 to restrain and fix the fixing lug 6;

in fig. 2, the top of the fixing pin 7 is sleeved with the restraining sleeve 12, the two sides of the restraining sleeve 12 are provided with first through holes 15, the diameter of each first through hole 15 is equal to that of the corresponding second through hole 16, and the elastic sheet 17 is embedded in the first through holes 15 to fix the restraining sleeve 12 on the fixing pin 7 and restrain and fix the fixing lug 6.

The utility model discloses a theory of operation is: when the inner rod 10 is used, the hydraulic cylinder 2 is placed on the bottom plate 4, a groove is formed in the bottom plate 4, a positioning lug 8 is arranged at the bottom end of a base 3 of the hydraulic cylinder 2 (the type is ROB125-60), the positioning lug 8 is embedded into the groove of the bottom plate 4, then a positioning pin 5 is inserted, the positioning pin 5 comprises an inner rod 10 and an outer cylinder 9, the outer cylinder 9 is sleeved on the inner rod 10, the outer cylinder 9 is embedded in the bottom plate 4 to increase friction on the inner rod 10, meanwhile, the outer cylinder 9 and the inner rod 10 are embedded to reduce abrasion of the inner rod 10, an expansion head 11 is arranged at the tail end of the inner rod 10, the expansion head 11 is used for limiting movement of the inner rod 10, when the inner rod 10 is inserted into the outer cylinder 9, the expansion head 11 is compressed through the outer cylinder 9, when the inner rod 10 completely enters the outer cylinder 9, the expansion head 11 can reset, the diameter of the, the expansion head 11 is made by die casting spring steel, the spring steel is specially used for manufacturing steel of an elastic element due to elasticity in quenching and tempering states, the elasticity of the steel depends on the elastic deformation capacity of the steel, namely, within a specified range, the elastic deformation capacity enables the steel to bear certain load, permanent deformation does not occur after the load is removed, the spring steel has excellent comprehensive performance, a positioning lug 8 is fixed in a groove, the hydraulic cylinder 2 is preliminarily positioned on the bottom plate 4 at the moment, then the hydraulic cylinder 2 is fixed, the hydraulic cylinder 2 is fixed through a group of fixing pins 7 on the top of the bottom plate 4, the bottom end of each fixing pin 7 is provided with a pin cap 14, each pin cap 14 is used for fixing the corresponding fixing pin 7 on the bottom plate 4, each second through hole 16 is used for accommodating an elastic sheet 17, two fixing lugs 6 are arranged at two ends of the bottom end of the hydraulic cylinder 2, and each fixing lug 6, the fixing lug 6 is sleeved on the fixing pin 7, then the restraining sleeve 12 is used for fixing and restraining, the restraining sleeve 12 is directly sleeved on the top of the fixing pin 7, the inner wall of the restraining sleeve 12 presses the elastic sheet 17 when the restraining sleeve is sleeved, the elastic sheet 17 extrudes the spring 13, the spring 13 is compressed to make room for the elastic sheet 17 to retract and provide space, when the restraining sleeve 12 moves to the first through hole 15 and the elastic sheet 17 are on the same horizontal line, the elastic sheet 17 pushes the elastic sheet 17 into the first through hole 15 through the rebound force of the spring 13, the installation is convenient, the positioning is rapid, the diameter of the tail of the elastic sheet 17 is equal to that of the second through hole 16, the spring 13 provides reset elastic force for the elastic sheet 17, the elastic sheet 17 is used for being embedded in the first through hole 15, and the restraining sleeve 12 is fixed on the fixing pin 7 to restrain and fix.

The above-mentioned, 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 utility model provides a hydraulic cylinder round pin axle location structure for loader, includes pneumatic cylinder (2), its characterized in that: the top of pneumatic cylinder (2) is provided with actuating lever (1), the bottom of pneumatic cylinder (2) is equipped with base (3), the both ends welding of base (3) has fixed ear (6), the bottom of base (3) is provided with bottom plate (4), erect the gomphosis on bottom plate (4) and have fixed pin (7), and fixed ear (6) cup joint on fixed pin (7), the welding of the bottom center department of base (3) has location ear (8), the front end level of bottom plate (4) runs through locating pin (5), and locating pin (5) pass location ear (8).

2. The hydraulic cylinder pin shaft positioning structure for the loader as claimed in claim 1, wherein the positioning pin (5) comprises an inner rod (10) and an outer cylinder (9), the outer cylinder (9) is sleeved on the inner rod (10), and both ends of the outer cylinder (9) are in a through structure.

3. The hydraulic cylinder pin shaft positioning structure for the loader as claimed in claim 2 wherein the end of the inner rod (10) is provided with an expansion head (11), and the bottom plate (4) is provided with a groove corresponding to the expansion head (11) and the outer cylinder (9).

4. The hydraulic cylinder pin shaft positioning structure for the loader as claimed in claim 3, wherein the diameter of the expansion head (11) is twice the diameter of the cross section of the outer cylinder (9), and the outer cylinder (9) is fixedly embedded in the groove inside the base plate (4), and the expansion head (11) is made of spring steel by die casting.

5. The hydraulic cylinder pin shaft positioning structure for the loader as claimed in claim 1, wherein the bottom end of the fixing pin (7) is provided with a pin cap (14), the pin cap (14) is fixedly embedded in the top of the bottom plate (4), and the two sides of the upper end of the fixing pin (7) are provided with second through holes (16).

6. The hydraulic cylinder pin shaft positioning structure for the loader as claimed in claim 5, wherein a spring (13) is horizontally arranged in the second through hole (16), and an elastic sheet (17) is lapped on the end of the spring (13), and the tail diameter of the elastic sheet (17) is equal to the diameter of the second through hole (16).

7. The hydraulic cylinder pin shaft positioning structure for the loader as claimed in claim 5, wherein the top of the fixing pin (7) is sleeved with a restraining sleeve (12), and the two sides of the restraining sleeve (12) are provided with first through holes (15), and the diameter of the first through hole (15) is equal to the diameter of the second through hole (16).