CN204691808U - Integral top beam plate type hydraulic support - Google Patents

Abstract

The utility model relates to an integral roof beam plate type hydraulic support, including a roof beam, a base, a hydraulic column, a column insertion, a slot, a telescopic beam, a hydraulic control valve assembly, a valve group support, a bridge, a tail beam, a connecting plate, an elevated frame, Bottom lifting device and pushing device; four hydraulic columns are arranged symmetrically between the top beam and the base, the upper end of the hydraulic column is connected with the top beam, and the lower end is connected with the base; the upper end of the post is hinged with the top beam, and the lower end slides with the slot Cooperate connection, the lower end of the slot is fixedly connected with the base; the front end of the top beam is connected with a telescopic beam, the rear end is hinged with the tail beam and the connecting plate in turn, and the bottom end of the connecting plate is hinged with the lifting frame; the pushing device is respectively hinged with the base and the scraper conveyor; hydraulic control The valve assembly is installed on the valve group bracket, and the bottom lifting device is connected to the bridge. The upper and lower motion tracks of the support top beam are a straight line, and can be designed in a modular manner, serialized and standardized in production, integrated in assembly, simple in structure and process, good in stability, safe and reliable, and have wide practicability.

Description

Integral top beam plate hydraulic support

technical field

The utility model relates to an integral roof beam plate type hydraulic support, which is especially suitable for the roof support of coal mining working faces in coal mines, and is also suitable for other occasions requiring support.

Background technique

Mine support equipment is one of the essential equipment in coal mines. The support equipment used in coal mines mainly includes four-bar linkage hydraulic supports, also known as four-link hydraulic supports. The upper and lower movement tracks of the top beam of four-link hydraulic supports are a double-button line. For details, see Coal Industry Press The content of the third chapter of the fifth chapter of the "Coal Mine Support Manual" published in 1993 and the "Eleventh Five-Year" national planning textbook "Mining Machinery" published by China University of Mining and Technology Press in 2010 are about Support device content. The four-link hydraulic support started in the 1950s, the technology entered a mature stage in the 1960s, and was introduced into my country's coal mining industry in the late 1970s. Problems existing in the four-link hydraulic support: 1: Since the top beam is a double-wire movement track, it needs to be redesigned one-to-one every time it is used, and the trial production and performance testing of the sample frame are carried out. After passing the test, it can be used After obtaining the safety standard certificate, the production and manufacture of the hydraulic support can be carried out at last. Such a cycle process can take as little as half a year and as long as more than a year before the equipment can be handed over to the coal mine for use. The efficiency is quite low; two: due to the structure of the four-link hydraulic support The characteristic is that it cannot realize modular design, and can only carry out one-to-one single-set design and production. The design workload is heavy, the production cycle is long, the labor intensity is high, the production cost is high, and the additional cost of the intermediate link is higher, which seriously affects my country's The promotion speed and application area of hydraulic supports. Three: Since the four-link hydraulic support must be designed and manufactured one-to-one, it brings great difficulties to modularization, standardization, serialization, and integrated production, and it is impossible to carry out large-scale production of parts, let alone Integrated assembly possible. Therefore, based on the problems of the existing four-link hydraulic support, changing the technical principle and technical structure of the existing hydraulic support has important practical and historical significance.

Utility model content

Technical problem: The purpose of this utility model is to solve the problems existing in the prior art, to provide a compact structure, reduce the labor intensity of miners, improve the safety of miners, reduce production costs, easy to popularize, and have a good supporting effect. stand.

Technical solution: integral top beam plate hydraulic support, characterized in that it mainly includes top beam, base, hydraulic column, inserting column, slot, telescopic beam, hydraulic control valve assembly, valve group bracket, bridge, tail beam, connecting plate , lifting frame, bottom lifting device, and pushing device; the hydraulic column is provided with four, symmetrically arranged between the roof beam and the base, the upper end of the hydraulic column is connected with the roof beam, and the lower end is connected with the base; the upper end of the inserted column The pin is hinged with the top beam, the lower end of the post is placed in the slot, the post and the slot are slidably connected, and the lower end of the slot is fixedly connected to the base; the front end of the top beam is connected with a telescopic beam; the rear end of the top beam is in turn The tail beam and the connecting plate are hinged, and the bottom end of the connecting plate is hinged with the lifting frame fixed on the base; the moving device is arranged in the base, and its two ends are respectively hinged with the base and the scraper conveyor in the coal mining face; The above-mentioned hydraulic control valve assembly is installed on the valve group bracket, and is supported on the front part of the base through a bridge, and a bottom lifting device is also connected to the bridge.

The telescopic beam is provided with a telescopic beam jack capable of controlling its expansion and contraction, and the cylinder body and the movable rod of the telescopic beam jack are respectively hinged with the top beam and the telescopic beam.

The front end of the telescopic beam is provided with a side guard capable of swinging up and down.

The side guard is hinged with the front end of the telescopic beam, and the side guard is provided with a side guard jack capable of controlling up and down swing, and the cylinder body and the movable rod of the side guard jack are respectively hinged with the telescopic beam and the side guard.

The skirting board can be a primary skirting board, a secondary skirting board or a multi-stage skirting board.

The posts and the slots form a plate-inserting mechanism, which is arranged at the rear of the bracket and is located at the center of the width of the bracket.

The hydraulic control valve assembly is composed of a group of dynamic operation valves or electro-hydraulic remote control valves, one-way valves, safety valves, pipe fittings and seals.

Beneficial effects: the overall roof beam plate type hydraulic support of the utility model, due to the setting of the inserting plate structure, the upper and lower motion tracks of the roof beam are a straight line, which can realize modular design, serialization, standardized production, integrated assembly, and The hydraulic support with the maximum height can cover the hydraulic support with a smaller height, which reduces the intermediate links, improves the production efficiency, reduces the production cost, and can realize the rapid promotion of the hydraulic support. Several modules are set according to the pressure and height of the roof of the coal mine, and each module is designed with a number of hydraulic support specifications with the same working resistance but different heights, and the height specifications meet the serialization standards. Frame trial production, sample frame testing, safety standards and evidence collection work, smaller size brackets are covered, reducing intermediate production links and shortening the production cycle. The main advantage:

(1) The utility model's overall roof beam plate type hydraulic support can realize serialization and standardized production, and the parts can be made into standard parts. According to the coal seam conditions, a standard series of supports with different height specifications can be formed. Whichever specification is needed by the coal mine can be selected. Which specification, after selection, the integrated assembly production is carried out, which improves the production efficiency;

(2) The utility model's overall roof beam plate hydraulic support can realize large-scale production, and each component can form a production line to realize large-scale, rapid and effective production, and to meet the purpose of large-scale promotion of hydraulic supports in coal mines;

(3) The integral top beam plate hydraulic support of the utility model can be applied to the fully mechanized mining face, and can also be used in the blast mining face. It has a simple structure, good stability, convenient and reliable use, and has wide practicability.

Description of drawings

Fig. 1 is a structural representation of the utility model.

In the figure, 1. Base, 2. Lifting frame, 3. Connecting plate, 4. Slot, 5. Tail beam, 6. Inserting column, 7. Top beam, 8. Pin shaft, 9. Hydraulic column, 10. Telescopic Beam Jack, 11. Telescopic Beam, 12. Side Guard Jack, 13. Side Guard, 14. Hydraulic Control Valve Assembly, 15. Valve Group Bracket, 16. Cross Bridge, 17. Bottom Lifting Device, 18. Pushing Device.

Detailed ways

An embodiment of the present utility model is further described below in conjunction with accompanying drawing:

As shown in Figure 1, the overall top beam plate hydraulic support of the present invention mainly consists of a base 1, an elevated frame 2, a connecting plate 3, a slot 4, a tail beam 5, a post 6, a top beam 7, a hydraulic column 9, Telescopic beam jack 10, telescopic beam 11, side panel jack 12, side panel 13, hydraulic control valve assembly 14, valve group bracket 15, bridge bridge 16, bottom lifting device 17, and pushing device 18 are formed. The top beam 7, the telescopic beam 11, the side guard 13, the post 6, the tail beam 5, the slot 4, the connecting plate 3, the elevating frame 2, the base 1, the valve group bracket 15, and the bridge 16 are made of steel plates or Steel welded. The hydraulic control valve assembly 14 is composed of a group of manual operation valves or electro-hydraulic remote control valves, one-way valves, safety valves, pipe fittings and seals. The hydraulic control valve assembly 14 is the control center of each action of the bracket and can be manually operated. Or electro-hydraulic remote control. The four hydraulic columns 9 are symmetrically arranged between the top beam 7 and the base 1, the upper end of the hydraulic column 9 is connected to the top beam 7, and the lower end is connected to the base 1; The beam 7 is hinged, the lower end of the post 6 is placed in the slot 4, and the lower end of the slot 4 is fixed to the base 1; a telescopic beam 11 is arranged in the top beam 7, and a telescopic beam jack connected to the telescopic beam 9 is provided under the top beam 7 10. The telescopic beam 11 expands and contracts with the expansion and contraction of the telescopic beam jack 10, and the two ends of the telescopic beam jack 10 are respectively hinged with the telescopic beam 11 and the top beam 7; It is a first-level side guard, a second-level side guard or a multi-level side guard, and the side guard 13 may not be provided for the lower model bracket. The side guard 13 is provided with a side guard jack 12 to make it swing, and the side guard jack 12 is hinged with the side guard 13 and the telescopic beam 11 respectively; The upper end of the plate 3 is hinged, the lower end of the connecting plate 3 is hinged with the upper end of the elevating frame 2, and the lower end of the elevating frame 2 is fixedly connected with the base 1. A bridge 16 is welded on the base 1, a valve group support 15 is installed on one side of the bridge 16, a hydraulic control valve assembly 14 is installed on the valve group support 15, and a bottom lifting device 17 is installed on the other side of the bridge 16 ; The moving device 18 is located in the base 1, and its two ends are respectively hinged with the base 1 and the scraper conveyor in the coal mining face. When the hydraulic column 9 stretches up and down, the top beam 7, the insertion column 6, the tail beam 5, etc. rise and fall accordingly, so that the tail beam 5 swings around the hinge axis with the top beam 7, and the connecting plate 3 surrounds and lifts the frame 2 accordingly. The hinge axis of the tail beam 5 also swings around the hinge axis of the connecting plate 3; a telescopic beam 11 is arranged in the top beam 7, and the two ends of the telescopic beam jack 10 are respectively hinged with the top beam 7 and the telescopic beam 11, and the telescopic The beam 11 moves in and out with the expansion and contraction of the telescopic beam jack 10; the pushing device 18 is used to push the scraper conveyor and move the parts of the hydraulic support itself, which are respectively hinged with the base 1 and the scraper conveyor; the hydraulic control valve assembly 14 is the control And the control center for controlling the high-pressure liquid, the hydraulic column 9 on the support, the telescopic beam jack 10, the side guard plate jack 12, the bottom lifting device 17, the side guard plate jack on the pushing device 18, the top beam 7 and the tail beam 5, etc. Controlled by the hydraulic control valve assembly 14, the hydraulic control valve assembly 14 is installed on the valve group bracket 15, the valve group bracket 15 is connected to the bridge 16, and the bridge 16 is welded with the base 1 as a whole, forming an integral roof beam as a whole Plate hydraulic support structure.

work process:

When the support is raised, the hydraulic control valve assembly 14 is operated, and the high-pressure liquid enters the large cavity of the four hydraulic columns 9, the top beam 7, the insertion column 6, and the tail beam 5 rise, and the telescopic beam 11, the telescopic beam jack 10, and the side guard 13. The side guard jack 12 rises accordingly, the post 6 rises vertically along the inner wall of the slot 4, the tail beam 5 rotates around the hinge axis with the top beam 7, and at the same time the tail beam 5 swings relatively around the hinge axis with the connecting plate 3 , the connecting plate 3 swings around the hinged shaft on the elevating frame 2 and rises.

When the bracket is lowered, by operating the hydraulic control valve assembly 14, the high-pressure liquid enters the small cavity of the four hydraulic columns 9, the top beam 7, the insertion column 6, and the tail beam 5 are lowered, and the telescopic beam 11, the telescopic beam jack 10, and the side guard 13. The side guard jack 12 descends accordingly, the post 6 descends vertically along the inner wall of the slot 4, the tail beam 5 rotates around the hinge axis with the top beam 7, and at the same time the tail beam 5 swings relatively around the hinge axis with the connecting plate 3 , the connecting plate 3 swings and descends around the hinged shaft on the elevating frame 2.

When the support pushes, by operating the hydraulic control valve assembly 14, the high-pressure liquid enters the large chamber of the jack in the pushing device 18 to push the scraper conveyor.

When the support is moved, the scraper conveyor is fixed, and by operating the hydraulic control valve assembly 14, the high-pressure liquid enters the small chamber of the jack in the pushing device 18 to push the hydraulic support.

The completion of the four actions of the support is accomplished by operating the hydraulic control valve assembly 14. The action sequence of the support is determined according to the site conditions of the working face. Every time the support completes four actions, the support completes a working cycle.

Claims (7)

1. an integral top beam plate type hydraulic support, is characterized in that: it mainly comprises back timber, base, hydraulic vertical prop, inserting column, slot, extensible canopy, hydraulic control valve assemblies, valve pack support, gap bridge, tail boom, connecting plate, raising bracket, bottom lifting device, push unit; Described hydraulic vertical prop arranges four, is arranged symmetrically between back timber and base, and the upper end of hydraulic vertical prop is connected with back timber, and lower end is connected with base; Described inserting column upper end by bearing pin and back timber hinged, inserting column lower end is placed in slot, inserting column and slot sliding connection, slot lower end and base affixed; Described back timber front end is connected with extensible canopy; Described top beam rear end is hinged tail boom and connecting plate successively, and the bottom of connecting plate is hinged with the raising bracket be connected on base; Described push unit is located in base, and its two ends are hinged with the drag conveyor in base and coal-face respectively; Described hydraulic control valve assemblies is arranged on valve pack support, and is supported on base front portion by gap bridge, and gap bridge is also connected with bottom lifting device.

2. a kind of integral top beam plate type hydraulic support according to claim 1, is characterized in that: described extensible canopy is provided with and can controls its flexible extensible canopy jack, and the cylinder body of extensible canopy jack and motion bar are hinged with back timber, extensible canopy respectively.

3. a kind of integral top beam plate type hydraulic support according to claim 1, is characterized in that: the front end of described extensible canopy is provided with the face guard that can swing up and down.

4. a kind of integral top beam plate type hydraulic support according to claim 3, it is characterized in that: the front end of described face guard and extensible canopy is hinged, described face guard is provided with the face guard jack that can control to swing up and down, and the cylinder body of face guard jack and motion bar are hinged with extensible canopy, face guard respectively.

5. a kind of integral top beam plate type hydraulic support according to claim 3, is characterized in that: described face guard can be one-level face guard, secondary protecting side plate or multistage face guard.

6. a kind of integral top beam plate type hydraulic support according to claim 1, is characterized in that: described inserting column and slot form flashboard mechanism, are arranged at the rear portion of support, and are positioned at the center of support width.

7. a kind of integral top beam plate type hydraulic support according to claim 1, is characterized in that: described hydraulic control valve assemblies is made up of one group of manual operating valve or electric liquid Remote control valve, one way valve, safety valve, pipe fitting and seal.