CN203441489U - Supporting and guiding device for walking part of coal winning machine - Google Patents

Abstract

The utility model patent relates to the field of coal mining machinery, in particular to a support and guide device for the walking part of a coal mining machine, which belongs to the field of coal mining equipment. The utility model reduces the stress of a single support slide shoe and a single guide slide shoe in the walking part of the coal mining machine by adding several support slide shoes and non-guidance slide shoes to the original coal mining machine, thereby improving the meshing of the walking wheel and the gear rail State, increase the service life of support shoes, guide shoes, traveling wheels and gear rails and related parts, reduce machine failure rate, at the same time, install wear-resistant devices that are easy to replace on non-guide shoes, which not only saves Coal cost, and improved coal mining efficiency. The utility model has simple principle, ingenious and reasonable structure, good working effect and safe and reliable operation.

Description

A support and guide device for the traveling part of a coal mining machine

technical field

The patent of the present invention relates to the field of coal mining machinery, in particular to a support and guide device for the traveling part of a coal mining machine.

Background technique

At present, the traction system of the shearer adopts a two-wheel drive system. The side of the shearer close to the coal wall has two support shoes, and the other side has two guide shoes. Due to the irregular geological structure of the coal field, the thickness and inclination of the coal seam often fluctuate in a mining area. During the working process of the coal shearer, the force on the traveling part is extremely complicated, and various failures often occur in the traveling mechanism, such as broken teeth of the traveling wheel. , Abnormal wear of guide shoes, etc., both affect production and reduce the service life of equipment, causing great losses to production enterprises, increasing coal mining costs in disguise, and affecting the normal development of the national economy. At present, a wear-resistant layer is welded on the inner side of the guide shoe. When the guide shoe fails to work normally, the guide shoe is removed, re-surfacing or scrapped directly. It takes a long time for replacement and maintenance, which seriously reduces the coal mining efficiency. In order to improve the stress state of the walking part of the shearer, increase the service life of the wearing parts such as the traveling wheel and the guide shoe, and improve the coal mining efficiency, it is imperative to innovate the structure of the supporting and guiding device of the walking part.

Contents of the invention

The purpose of this utility model patent is to provide a support and guide device for the walking part of the coal mining machine, which can reduce the stress on the single support shoe and the single guide shoe of the walking part of the coal mining machine, thereby improving the engagement between the walking wheel and the rack state, increase the service life of support slide shoes, guide slide shoes, traveling wheels, gear rails and related parts, reduce machine failure rate, and at the same time, facilitate the replacement of vulnerable guide and non-guide slide shoes, thereby improving coal mining efficiency .

In order to achieve the above-mentioned purpose of the invention, the utility model adopts following design:

On the side of the traditional shearer equipped with support slide shoes, add several same support slide shoes between the two support slide shoes, and on the side where the guide slide shoes are installed, add several pieces between the two guide slide shoes A non-guiding shoe that acts as a support but not a guide.

In order to achieve the above object, the utility model adopts the following technical solutions:

A support and guide device for the running part of a coal mining machine, comprising several support slide shoes, two guide slide shoes and several non-guide slide shoes, several wear-resistant devices, several baffle plates, and several connecting screws. The non-guiding shoe can be obtained by improving the existing guiding shoe. The difference between it and the existing guiding shoe is that the non-guiding shoe is symmetrically provided with two sets of easily replaceable wear-resistant devices, baffles and Attach the screws. There is no hook-shaped structure on the bottom of the non-guiding shoe, and there are two U-shaped gaps on its side, which are symmetrically distributed on both sides along the vertical direction, so as to avoid interference between the rack and the guiding shoe when the shearer is cutting and feeding. There are a number of threaded holes drilled on both ends of the non-guiding shoe, and the top of the inner side is symmetrically provided with unreachable installation grooves along the traction direction, one along the vertical direction. The surface of the installation groove is an arc surface, and a wear-resistant device is installed in the installation groove. The end surface of one side of the wear-resistant plate is in contact with the inner surface of the impassable side of the installation groove, and there are several circular blind holes with a certain depth at the bottom of the installation groove for installing springs. The wear-resistant device is composed of a wear-resistant plate and a number of springs. In order to prevent the wear-resistant plate and the non-guiding shoe from moving relative to each other along the forward direction of the shearer, a baffle is installed on both ends of the non-guiding shoe, and its shape is rectangular. The lower end surface of the baffle plate is slightly higher than the lower end surface of the wear plate, and there are several circular through holes on the baffle plate, and the screws pass through the circular through holes on the baffle plate to be connected with the screw holes on the end surface of the sliding shoe. The wear-resistant plate is made of high wear-resistant material, and its contact surface with the non-guiding shoe is an arc surface. There are several circular holes on the top of the wear-resistant plate corresponding to the circular blind holes at the bottom of the installation groove for installing springs. The wear device can also be used on the guide shoe.

The advantages of the present invention are: (1) It can improve the stress state of the original two supporting shoes and the two guiding shoes, and at the same time, improve the meshing state of the traveling wheel and the gear rail, increase the service life of the traveling part, and further improve Coal mining production efficiency, reduce equipment loss and failure rate; (2) increase the wear-resistant device, when the non-guided shoe in the present invention does not work normally, the guide shoe and the non-guided shoe can be replaced by replacing the wear-resistant device. The boots work normally and are easy to replace, reducing product cost. Therefore, the present invention has certain economic benefits.

Description of drawings

Accompanying drawing 1 is the non-guiding shoe structure schematic diagram in the device of the present invention, Fig. 2 is the sectional view of existing guiding shoe, Fig. 3 is the front view of wear-resistant device, Fig. 4 is the top view of wear-resistant device, Fig. 5 is the schematic diagram of baffle plate structure, Fig. 6 is a schematic diagram of the practical application of the device of the present invention in a coal shearer. Among them, 1 is a support shoe, 2 is a guide shoe, 3 is a non-guide shoe, 4 is a wear plate, and 5 is a spring.

Detailed ways

On the side of the traditional coal mining machine where the support slide shoes are installed, two identical support slide shoes 1 are installed in the middle of the two support slide shoes; A non-guiding shoe 3 that only plays a supporting role and does not play a guiding role. The bottom surface of the non-guiding shoe 3 has no hook structure, and two U-shaped gaps are opened on its side, symmetrically distributed on both sides along the vertical direction. To avoid interference between the gear rail and the non-guiding shoe 3 when the shearer is cutting and feeding, the non-guiding shoe 3 is symmetrically provided with two sets of easily replaceable wear-resistant devices, baffles and connecting screws along the vertical direction. A number of threaded holes are drilled on the two ends of the non-guiding shoe 3, and the inner top is symmetrically provided with impassable installation grooves along the traction direction, one along the vertical direction, the surface of the installation groove is an arc surface, and a wear-resistant device is installed in the installation groove , The end face of the wear plate 4 is in contact with the inner surface of the side of the mounting groove, and there are 4 circular blind holes with a certain depth at the bottom of the mounting groove for installing the spring. The wear-resistant device is composed of a wear-resistant plate 4 and four springs 5. The wear-resistant plate 4 is made of high wear-resistant material, and its contact surface with the non-guiding shoe 3 is an arc surface. The circular hole corresponding to the circular blind hole at the bottom is used for installing the spring 5 . In order to prevent the wear-resistant plate 4 and the non-guiding shoe 3 from moving relative to each other along the forward direction of the shearer, a baffle is installed on both ends of the non-guiding shoe 3. The shape of the baffle is rectangular, and the lower surface of the baffle is slightly higher than The lower end surface of the wear plate 3 has some circular through holes on the baffle plate, and the screws pass through the circular through holes on the baffle plate to be connected with the screw holes on the end surface of the non-guiding shoe 3 .

Claims (2)

1. a Walk Part of Shearer supports and guiding device, its technical characterictic is: a kind of Walk Part of Shearer supports and guiding device, comprise several and support piston shoes (1), two guide slip shoes (2) and several non-guide slip shoes (3), several wear-resistant devices, several baffle plates and several attachment screws.

2. a kind of Walk Part of Shearer according to claim 1 supports and guiding device, its non-guide slip shoe (3) is symmetrically arranged with the easily changeable wear-resistant device of two covers along vertical, baffle plate and attachment screw, non-guide slip shoe (3) bottom surface does not have hook formation, in its side, have two similar U-shaped gap, along vertical bilateral symmetry, distribute, non-guide slip shoe (3) both ends of the surface are drilled with some screwed holes, inside top is symmetrically arranged with obstructed mounting groove along lead, along one of vertical one side, mounting groove surface is cambered surface, wear-resistant device is installed in mounting groove, wearing plate (4) one side end faces contact with the obstructed side medial surface of mounting groove, the circular blind hole of some certain depths is arranged at mounting groove bottom, be used for mounting spring (5).

3. a kind of Walk Part of Shearer according to claim 1 supports and guiding device, its wear-resistant device is comprised of wearing plate (4) and some springs (5), wearing plate (4) is used high abrasion resisting material, itself and non-guide slip shoe (3) contact surface are cambered surface, several circular ports corresponding with the circular blind hole in mounting groove bottom are arranged at wearing plate (4) top, be used for mounting spring (5), this wear-resistant device can be applied on guide slip shoe (2) equally.

4. a kind of Walk Part of Shearer according to claim 1 supports and guiding device, its baffle plate profile is rectangle, baffle plate lower surface is a little more than wearing plate (4) lower surface, on baffle plate, have some manholes, screw is connected with the screw hole of non-guide slip shoe (3) end face through the manhole on baffle plate.

Images