CN212835551U

CN212835551U - Positive rotation six-connecting-rod working device and underground scraper

Info

Publication number: CN212835551U
Application number: CN202021116655.2U
Authority: CN
Inventors: 贾体锋; 赵兴寅; 杜祥虎; 张强
Original assignee: Xuzhou XCMG Railway Equipment Co Ltd
Current assignee: Xuzhou XCMG Railway Equipment Co Ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-03-30
Anticipated expiration: 2030-06-17

Abstract

The utility model discloses a six connecting rod equipment of corotation and underground scraper, including swing arm, pull rod, rocking arm, scraper bowl, tipping bucket hydro-cylinder and lift cylinder, wherein the swing arm is articulated with the scraper bowl bottom to it is articulated with the back of scraper bowl through the pull rod. One end of the tipping oil cylinder is hinged with the pull rod and the rocker arm together, the other end of the rocker arm is hinged with the movable arm, and one end of the lifting oil cylinder is hinged with the movable arm. The structure can improve the control force of the bucket and increase the shoveling force of the bucket.

Description

Positive rotation six-connecting-rod working device and underground scraper

Technical Field

The utility model relates to an underground scraper technical field, concretely relates to six connecting rod equipment in corotation and underground scraper.

Background

The working device of the underground scraper adopts a connecting rod structure to control the bucket, wherein the four-connecting-rod and five-connecting-rod mechanisms are simple in structure, but the connecting rod force multiplication coefficient is small, the scraping force is small, and the underground scraper is generally applied to a small-tonnage scraper. The reverse six-link mechanism has more forms and applications, but has a complex structure, large local stress during shoveling and easy mutual interference among components.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a six connecting rod equipment of corotation and underground scraper to solve the not enough of other connecting rod types of prior art, increase shovel power of getting and control power.

In order to achieve the above object, on the one hand, the utility model discloses a six-bar linkage working device for positive rotation, which comprises a movable arm, a pull rod, a rocker arm, a bucket, a tipping bucket oil cylinder and a lifting oil cylinder, wherein the movable arm is hinged with the bottom end of the bucket and is hinged with the back of the bucket through the pull rod; one end of the tipping bucket oil cylinder is hinged with the pull rod and the rocker arm together, and the other end of the rocker arm is hinged with the movable arm; one end of the lifting oil cylinder is hinged with the movable arm.

Further, the movable arm comprises a first arm body and a second arm body, the second arm body comprises a supporting rod and a connecting rod, the supporting rod is perpendicular to the first arm body and is fixedly connected with the first arm body, and the connecting rod is hinged to two ends of the supporting rod.

Further, the first arm body is of a box-type structure.

Furthermore, a cutting groove I is formed in the bottom end of the bucket, and a hinge point is arranged in the cutting groove I and used for being hinged with the connecting rod.

Further, a limiting assembly is further arranged in the cutting groove I and comprises a gasket and a limiting block, the gasket is located between the bottom surface of the cutting groove I and the limiting block, and the limiting block penetrates through the gasket through a bolt and is in threaded connection with the bottom surface of the cutting groove I.

Furthermore, a cutting groove II is formed in the back face of the bucket, and a hinge point is arranged inside the cutting groove II and used for being hinged with the pull rod.

On the other hand, the utility model also discloses an underground scraper, including the aforesaid corotation six-bar linkage equipment.

The utility model has the advantages that: the control force and the shoveling force of the movable arm to the bucket are enhanced by matching the movable arm with the connecting rod, the oil cylinder and the like and arranging the cutting groove on the bucket. By designing reasonable hinge point positions among all parts, the working device is ensured to be horizontally moved and lifted, meanwhile, the automatic leveling function is realized, and the working efficiency is improved. The limiting assembly is added on the bucket, so that the discharging impact is reduced, the safety of the equipment is improved, and the service life of the equipment is prolonged.

Drawings

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

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of a boom configuration;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic perspective view of the bucket;

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a schematic structural diagram of a stopper;

FIG. 8 is a schematic view of the operation of the present invention when the bucket is retracted;

FIG. 9 is a schematic view of the operation of the present invention;

in the figure, 1-movable arm, 11-first arm body, 12-second arm body, 12-1-supporting rod, 12-2-connecting rod, 2-pull rod, 3-rocker arm, 4-bucket, 41-cutting groove I, 42-cutting groove II, 43-limiting component, 43-1 gasket, 43-2-limiting block, 5-tipping oil cylinder and 6-lifting oil cylinder.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1-2 and fig. 8-9, the normal rotation six-bar working device comprises a movable arm 1, a pull rod 2, a rocker arm 3, a bucket 4, a tipping bucket cylinder 5 and a lifting cylinder 6, wherein the movable arm 1 is hinged with the bottom end of the bucket 4 and is hinged with the back surface of the bucket 4 through the pull rod 2. The side of the bucket 4 that first contacts the material or the ground is the front side, and the opposite side is the back side. One end of a tipping bucket oil cylinder 5 is hinged with the pull rod 2 and the rocker arm 3 together, and the other end of the rocker arm 3 is hinged with the movable arm 1. One end of the lifting oil cylinder 6 is hinged with the movable arm 1. The forward rotation in the forward rotation six-connecting rod means that the movement direction of the tipping bucket oil cylinder 5 is consistent with the movement direction of the bucket, the tipping bucket oil cylinder 5 extends forwards, the bucket 4 is in a forward unloading state, the tipping bucket oil cylinder 5 contracts backwards, and the bucket 4 is in a backward bucket collecting state, and the mode enables force matching among all parts to be more reasonable and is beneficial to enhancing the control force of a working device on the bucket 4.

Specifically, as shown in fig. 3-4, the movable arm 1 includes a first arm 11 and a second arm 12, the second arm 12 includes a support rod 12-1 and a connecting rod 12-2, the support rod 12-1 is perpendicular to and fixedly connected to the first arm 11, and the connecting rod 12-2 is hinged to two ends of the support rod 12-1.

Preferably, the first arm 11 is a box structure, which is reinforced. Of course, the first arm may have a double-arm plate structure.

As shown in fig. 5 and 6, the bucket 4 is provided at a bottom end thereof with a slot I41, in which a hinge point is provided for hinge-connection with the connecting rod 12-2.

As shown in figures 6-7, a limiting assembly 43 is further arranged in the cutting groove I41, the limiting assembly comprises a gasket 43-1 and a limiting block 43-2, the gasket 43-1 is located between the bottom surface of the cutting groove I41 and the limiting block 43-2, and the limiting block 43-2 is in threaded connection with the bottom surface of the cutting groove I41 through the gasket 43-1 by bolts. Specifically, four through-going unthreaded holes are formed in the limiting block 43-2, a truncated cone-shaped protrusion is arranged on one surface of the limiting block, a groove and four unthreaded holes corresponding to the protrusion are formed in the gasket 43-1, during installation, the protrusion on the limiting block 43-2 is placed in the groove on the gasket 43-1, then four bolts penetrate through the four unthreaded holes on the limiting block 43-2, then the four unthreaded holes on the gasket and finally the bottom surface of the cutting groove I41 in a threaded manner. The purpose of arranging the bulges and the grooves is to avoid the stress of the four bolts and prevent the bolts from being broken. If the height of the limiting block 43-2 is required to be adjusted, the height can be adjusted by selecting the spacers 43-1 with different heights.

In general, a limiting component is arranged to prevent the bucket 4 from rigidly colliding with the connecting rod 12-2 when the bucket is driven by the two cylinders to discharge or collect. The limiting block 43-2 is made of nylon or rubber.

Specifically, as shown in fig. 5, a slot II42 is further formed in the back of the bucket, and a hinge point is formed inside the slot II42 and used for being hinged with the pull rod.

The cutting groove I41 and the cutting groove II42 are arranged on the bucket 4, so that the control force of the boom 1 to the bucket is enhanced, and the shoveling force of the bucket is increased.

In addition, the structure of the six right connecting rods is used as a foundation, and the bucket 4 can be automatically leveled while being lifted in a translation manner through reasonable arrangement of hinged points among all the components, so that the shoveling action can be optimized, the shoveling time can be saved, and the shoveling work efficiency can be improved.

Fig. 8-9 are diagrams of the operation of the working device, among others, to enhance the understanding of the present invention.

The utility model also discloses an underground scraper, including foretell six connecting rod equipment of corotation, other component parts of underground scraper see prior art.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes that can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art can be made within the scope of the claims of the present invention.

Claims

1. The utility model provides a six connecting rod equipment of corotation which characterized in that: the lifting device comprises a movable arm (1), a pull rod (2), a rocker arm (3), a bucket (4), a tipping bucket oil cylinder (5) and a lifting oil cylinder (6), wherein the movable arm (1) is hinged with the bottom end of the bucket (4) and is hinged with the back surface of the bucket (4) through the pull rod (2); one end of the tipping bucket oil cylinder (5) is hinged with the pull rod (2) and the rocker arm (3) together, and the other end of the rocker arm (3) is hinged with the movable arm (1); one end of the lifting oil cylinder (6) is hinged with the movable arm (1).

2. The forward six-link working device according to claim 1, wherein: the movable arm (1) comprises a first arm body (11) and a second arm body (12), the second arm body (12) comprises a supporting rod (12-1) and a connecting rod (12-2), the supporting rod (12-1) is perpendicular to the first arm body (11) and is fixedly connected with the first arm body, and the connecting rod (12-2) is hinged to two ends of the supporting rod (12-1).

3. The forward six-link working device according to claim 2, characterized in that: the first arm body (11) is of a box-type structure.

4. The forward six-link working device according to claim 2, characterized in that: a cutting groove I (41) is formed in the bottom end of the bucket (4), and a hinge point is arranged in the cutting groove I (41) and used for being hinged with the connecting rod (12-2).

5. The forward six-link working device according to claim 4, wherein: a limiting assembly (43) is further arranged in the cutting groove I (41), the limiting assembly comprises a gasket (43-1) and a limiting block (43-2), the gasket (43-1) is located between the bottom surface of the cutting groove I (41) and the limiting block (43-2), and the limiting block (43-2) is in threaded connection with the bottom surface of the cutting groove I (41) through the gasket (43-1) through a bolt.

6. The forward six-link working device according to claim 5, wherein: a cutting groove II (42) is further formed in the back face of the bucket (4), and a hinge point is arranged inside the cutting groove II (42) and used for being hinged with the pull rod (2).

7. An underground scraper, characterized in that: comprising the normal rotation six-link working device according to any one of claims 1 to 6.