CN210289775U

CN210289775U - Adjusting device for digging head of coal mine heading machine

Info

Publication number: CN210289775U
Application number: CN201920861271.4U
Authority: CN
Inventors: 赵振宇; 董泽强; 刘建君; 张欣; 李江飞
Original assignee: Datong Coal Mine Group Co Ltd
Current assignee: Datong Coal Mine Group Co Ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-04-10
Anticipated expiration: 2029-06-10

Abstract

The utility model discloses an adjusting device of head is dug to colliery entry driving machine, include the dead lever with colliery entry driving machine fixed connection, the end fixing of dead lever has the installation pipe, the one end that the dead lever was kept away from to the installation pipe is inserted and is equipped with and dig the head, the one end that the installation pipe is close to the dead lever is inside to be fixed with fixed pipe, fixed intraductal two-way telescopic rod that is fixed, fixed pipe rotates on being close to one side outer wall of digging the head and is connected with the commentaries on classics board one that two symmetries set up, two drive ends of two-way telescopic rod all are fixed with the movable plate, every the movable plate all extends to the outside of installation pipe, and the movable plate is located. The utility model discloses the motion at two-way telescopic link drive end makes changes board one and changes the contained angle height of constituteing between the board two, can dig pushing of head or will dig the head ejecting, realize length adjustment to dig the fixed of head through the pneumatic cylinder, it is convenient to adjust, and is fixed firm.

Description

Adjusting device for digging head of coal mine heading machine

Technical Field

The utility model relates to a colliery entry driving machine technical field especially relates to a colliery entry driving machine digs adjusting device of head.

Background

The coal mine heading machine is a machine for excavating coal mines, and mainly works for continuously crushing rocks and coal mines through rotation of a heading head and then transporting the rocks and the coal mines out to realize excavation of the coal mines.

In the excavation process in colliery, when meetting the comparatively hard aspect in rock or colliery, generally need to shorten the length of digging the head, avoid digging the length overlength of head, lead to the atress easy break, when meetting the comparatively soft aspect in rock or colliery, generally need to lengthen the length of digging the head, realize darker excavation depth, and generally screw in of bolt is unscrewed out at present and is carried out the fixed and lax of digging the head, it is very inconvenient when the regulation of digging the head.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background art and providing an adjusting device of a coal mine heading machine digging head.

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

an adjusting device of a coal mine heading machine digging head comprises a fixed rod fixedly connected with the coal mine heading machine, a mounting pipe is fixed at the end part of the fixing rod, a digging head is inserted at one end of the mounting pipe far away from the fixing rod, a fixed pipe is fixed in one end of the installation pipe close to the fixed rod, a bidirectional telescopic rod is fixed in the fixed pipe, the outer wall of one side of the fixed pipe close to the digging head is rotatably connected with two symmetrically arranged rotating plates I, two driving ends of the bidirectional telescopic rod are both fixed with movable plates, each movable plate extends to the outside of the fixed tube, and one end of the moving plate positioned outside the fixed tube is rotatably connected with a second rotating plate, one end of the second rotating plate far away from the moving plate is rotatably connected with the end part of the first rotating plate positioned at the same side of the second rotating plate, two hydraulic cylinders are symmetrically fixed on the inner wall of the mounting pipe, and driving ends of the two hydraulic cylinders are arranged towards the digging head and fixedly connected with a resisting plate.

Preferably, two sets of guiding mechanisms are arranged on the inner wall of the installation pipe, each guiding mechanism comprises two connecting rods fixed on the inner wall of the installation pipe, and a turntable which is in contact with the outer wall of the digging head is installed at one end, far away from the inner wall of the installation pipe, of each connecting rod.

Preferably, the end part of the connecting rod, which is far away from the mounting pipe, is fixed with a rotating rod, and the rotating plate is sleeved on the outer wall of the rotating rod.

Preferably, a rotating opening is formed in the connecting position of the rotating disc and the rotating rod, a bearing is fixed in the rotating opening, and the rotating rod is inserted in the bearing.

Preferably, the turntable is made of high manganese steel.

Compared with the prior art, the adjusting device for the digging head of the coal mine heading machine has the advantages that:

1. a hydraulic cylinder is arranged, and a driving end of the hydraulic cylinder extends out to drive a supporting plate to be tightly supported against the outer wall of the digging head so as to fix the digging head;

2. the rotary table is arranged, when the digging head is pushed out or pushed in, the outer wall of the digging head is contacted with the rotary table, and the rotary table rotates to guide the digging head, so that the stable movement of the digging head is ensured;

3. the two-way telescopic rod, the first rotating plate and the second rotating plate are arranged, when the driving end of the two-way telescopic rod moves towards the outer side, the moving plate moves towards the outer side, one end of the second rotating plate is pulled to move towards the outer side, the other end of the second rotating plate pulls the first rotating plate to rotate towards the fixed pipe, the height of an included angle formed between the first rotating plate and the second rotating plate is reduced at the moment, the digging head is pushed in, the length of the digging head outside the installation pipe is reduced, when the driving end of the two-way telescopic rod moves towards the inner side, the second rotating plate moves towards the inner side, the first rotating plate is supported by the other end, the height of the included angle formed between the first rotating plate and the second rotating plate is increased at the moment, the digging head is pushed out;

to sum up, the utility model discloses the motion at two-way telescopic link drive end makes changes the board one and changes the contained angle height of constituteing between the board two, can dig pushing of head or will dig the head ejecting, realizes length adjustment to dig the fixed of head through the pneumatic cylinder, it is convenient to adjust, fixed firm.

Drawings

Fig. 1 is a sectional view of an adjusting device of a coal mine heading machine heading head provided by the utility model;

fig. 2 is a side view of the joint of the supporting plate, the turntable and the digging head in the adjusting device of the digging head of the coal mine heading machine provided by the utility model.

In the figure: the device comprises a fixing rod 1, a mounting tube 2, a fixing tube 3, a first rotating plate 4, a two-way telescopic rod 5, a moving plate 6, a second rotating plate 7, a digging head 8, a hydraulic cylinder 9, a supporting plate 10, a connecting rod 11 and a turntable 12.

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. 1-2, an adjusting device for a coal mine heading machine comprises a fixed rod 1 fixedly connected with the coal mine heading machine, an installation pipe 2 is fixed at the end part of the fixed rod 1, a heading head 8 is inserted at one end of the installation pipe 2 far away from the fixed rod 1, a fixed pipe 3 is fixed inside one end of the installation pipe 2 close to the fixed rod 1, a bidirectional telescopic rod 5 is fixed inside the fixed pipe 3, the bidirectional telescopic rod 5 can adopt a bidirectional hydraulic telescopic rod, two symmetrically arranged rotating plates one 4 are rotatably connected on the outer wall of one side of the fixed pipe 3 close to the heading head 8, moving plates 6 are fixed at two driving ends of the bidirectional telescopic rod 5, each moving plate 6 extends to the outside of the fixed pipe 3, one end of the moving plate 6 positioned at the outside of the fixed pipe 3 is rotatably connected with a rotating plate two 7, one end of the rotating plate two 7 far away from the moving plate 6 is rotatably connected with the end, two hydraulic cylinders 9 are symmetrically fixed on the inner wall of the installation pipe 2, the driving ends of the two hydraulic cylinders 9 are arranged towards the digging head 8 and fixedly connected with a resisting plate 10, when the length of the digging head 8 positioned outside the installation pipe 2 is adjusted, the driving ends of the two hydraulic cylinders 9 drive the resisting plate 10 to move back, the resisting plate 10 is not tightly contacted with the outer wall of the digging head 8, when the driving end of the bidirectional telescopic rod 5 moves towards the outside, the moving plate 6 moves towards the outside, one end of the rotating plate two 7 moves towards the outside, the other end of the rotating plate two 7 pulls the rotating plate one 4 to rotate towards the fixed pipe 3, the height of an included angle formed between the rotating plate one 4 and the rotating plate two 7 is reduced, the digging head 8 is pushed in, the length of the digging head 8 positioned outside the installation pipe 2 is reduced, when the driving end of the bidirectional telescopic rod 5 moves towards the inside, the rotating plate two 7 moves towards the inside, the other end props up the rotating plate one 4, and the height of an included angle formed, the digging head 8 is pushed out to increase the length of the digging head 8 positioned outside the mounting pipe 2, and after the regulation is completed, the end part of the hydraulic cylinder 9 extends to enable the abutting plate 10 to abut against the outer wall of the digging head 8, so that the digging head 8 is fixed.

Set up two sets of guiding mechanism on the inner wall of installation pipe 2, guiding mechanism is including fixing two connecting rods 11 on installation pipe 2 inner wall, the one end that installation pipe 2 inner wall was kept away from to two connecting rods 11 is installed and is dug the carousel 12 that 8 outer walls of head contacted, the end fixing that installation pipe 2 was kept away from to connecting rod 11 has the bull stick, carousel 12 cover is established on the outer wall of bull stick, the junction of carousel 12 and bull stick has been seted up and has been changeed the mouth, the mouth internal fixation has the bearing, carousel 12 realizes the rotation of carousel 12 through the bull stick rotation in the bearing, when digging head 8 and removing, the outer wall that digs head 8 contacts with the outer wall of carousel 12, it rotates to drive carousel 12, it removes the direction to realize digging head 8 through the rotation of carousel 12, guarantee to dig the steady that head 8 removes, the bull stick is inserted and is established in the bearing, carousel 12 is made for the high manganese steel.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

Now, the operation principle of the present invention is explained as follows:

when the length of the digging head 8 positioned outside the mounting pipe 2 is adjusted, the driving ends of the two hydraulic cylinders 9 drive the abutting plate 10 to move back, the abutting plate 10 is not abutted against the outer wall of the digging head 8, when the driving end of the bidirectional telescopic rod 5 moves towards the outer side, the moving plate 6 moves towards the outer side, one end of the rotating plate two 7 is pulled to move towards the outer side, the other end of the rotating plate two 7 pulls the rotating plate one 4 to rotate towards the fixed pipe 3, the height of an included angle formed between the rotating plate one 4 and the rotating plate two 7 is reduced at the moment, the digging head 8 is pushed in, the length of the digging head 8 positioned outside the mounting pipe 2 is reduced, when the driving end of the bidirectional telescopic rod 5 moves towards the inner side, the rotating plate two 7 moves towards the inner side, the rotating plate one 4 is supported by the other end, the height of an included angle formed between the rotating plate one 4 and the rotating plate two 7 is increased at the moment, the digging head 8 is pushed out, the length, the end of the hydraulic cylinder 9 is extended to make the abutting plate 10 abut against the outer wall of the digging head 8, and the digging head 8 is fixed.

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 adjusting device for the coal mine heading machine comprises a fixed rod (1) fixedly connected with the coal mine heading machine, and is characterized in that an installation pipe (2) is fixed at the end part of the fixed rod (1), one end, far away from the fixed rod (1), of the installation pipe (2) is inserted with a heading head (8), a fixed pipe (3) is fixed inside one end, close to the fixed rod (1), of the installation pipe (2), a bidirectional telescopic rod (5) is fixed in the fixed pipe (3), two rotating plates I (4) which are symmetrically arranged are rotatably connected on the outer wall of one side, close to the heading head (8), of the fixed pipe (3), two driving ends of the bidirectional telescopic rod (5) are both fixed with movable plates (6), each movable plate (6) extends to the outside of the fixed pipe (3), and one end, located at the outside of the fixed pipe (3), of the movable plate (6) is rotatably connected with a rotating plate II (7), one end of the second rotating plate (7) far away from the moving plate (6) is rotatably connected with the end part of the first rotating plate (4) positioned on the same side of the second rotating plate, two hydraulic cylinders (9) are symmetrically fixed on the inner wall of the installation pipe (2), and the driving ends of the two hydraulic cylinders (9) are arranged towards the digging head (8) and fixedly connected with a resisting plate (10).

2. The adjusting device for the coal mine heading machine according to claim 1, wherein two sets of guide mechanisms are arranged on the inner wall of the mounting pipe (2), each guide mechanism comprises two connecting rods (11) fixed on the inner wall of the mounting pipe (2), and a turntable (12) contacted with the outer wall of the heading head (8) is arranged at one end, far away from the inner wall of the mounting pipe (2), of the two connecting rods (11).

3. The adjusting device for the coal mine heading machine according to claim 2, wherein a rotating rod is fixed at the end of the connecting rod (11) far away from the mounting pipe (2), and the rotating disc (12) is sleeved on the outer wall of the rotating rod.

4. The adjusting device for the coal mine heading machine according to claim 3, wherein a rotary opening is formed at the joint of the rotary plate (12) and the rotary rod, a bearing is fixed in the rotary opening, and the rotary rod is inserted in the bearing.

5. An adjustment device for a coal mine entry head according to claim 2, characterised in that the turntable (12) is made of high manganese steel.