CN202441398U - Sliding shoes connecting structure for bottom-lifting jack of hydraulic support - Google Patents
Sliding shoes connecting structure for bottom-lifting jack of hydraulic support Download PDFInfo
- Publication number
- CN202441398U CN202441398U CN2012200748714U CN201220074871U CN202441398U CN 202441398 U CN202441398 U CN 202441398U CN 2012200748714 U CN2012200748714 U CN 2012200748714U CN 201220074871 U CN201220074871 U CN 201220074871U CN 202441398 U CN202441398 U CN 202441398U
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- cylinder
- piston shoes
- cylinder bottom
- pin
- sliding shoes
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Abstract
The utility model discloses a sliding shoes connecting structure for a bottom-lifting jack of a hydraulic support, wherein the connecting structure is characterized in that a circular concave platform is arranged on the end face at the bottom of a cylinder of the bottom-lifting jack and at the center of the end face at the bottom of the cylinder, a pair of cylinder bottom round pin holes are arranged in the side wall of the circular concave platform and on the same-diameter position, and the cylinder bottom round pin holes penetrate through the side wall of the concave platform; the sliding shoes are sleeved on the bottom of the cylinder, on the sliding shoes, sliding shoes pin holes are arranged at the positions which correspond to the cylinder bottom round pin holes, and the sliding shoes pin holes penetrate through the side walls of the sliding shoes; and the cylinder bottom round pin holes and the sliding shoes pin holes arranged at the corresponding positions are fixedly connected with one another by round pins which are in interference fit with one another, and the round pins can be withdrawn into the circular concave platform under the impact of an external force. The utility model is firm in structure and convenient to assemble and disassemble.
Description
Technical field
The utility model relates to the hydraulic support that is applied in the down-hole coal excavation work plane and lifts end jack piston shoes syndeton.
Background technology
Hydraulic support is a fully-mechanized mining working support apparatus under the coal mine, and it mainly acts on is supporting stope top board, maintenance safe working space, pass work plane fells and transports equipment.Form by load assembly, hydraulic jack, control assembly and servicing unit.
Lifting end jack is a kind of of hydraulic jack in the hydraulic support, its effect be fall post when moving frame as lifting support, more smooth to reduce the frictional resistance between bracket base and the seat earth, to make moving frame, and the application life that guarantees to pass jack.
At present, in standing shield hydraulic support, the end jack of distinguishing with mounting means of lifting mainly contains two kinds of forms, promptly telescopic and skid shoe type.Telescopic is to be installed in and to be welded in base and to cross in the sleeve on the bridge plate lifting end jack, with upper frame location, cage guiding; Skid shoe type is piston shoes to be housed at the bottom of lifting end jack cylinder, is installed in to be welded in the base in the slideway on the main muscle, with upper frame location, slideway guiding.
Existing skid shoe type is lifted end jack; The syndeton of its piston shoes and cylinder bottom is as shown in Figure 1: welding cylinder sleeve 3 on the cylinder barrel of lifting end jack 2; Bearing pin 4 is welded together with piston shoes 1; Piston shoes 1 are sleeved on the cylinder bottom, bearing pin 4 pass on the cylinder sleeve 3 pin shaft hole with lift end jack 2 and be connected, fix through cottor pin again.In actual the use, it is not quick detachable when the support overhaul that the skid shoe type of this connected mode is lifted end jack, and link quantity is many, manufacturing procedure is many.
Summary of the invention
The utility model is for avoiding above-mentioned existing in prior technology weak point, provides that a kind of structure is firm, the hydraulic support of easy accessibility is lifted end jack piston shoes syndeton.
The utility model adopts following technical scheme for the technical solution problem:
The characteristics that the utility model hydraulic support is lifted end jack piston shoes syndeton are:
Lifting on the cylinder bottom end face of end jack, be in cylinder bottom end face middle position and be provided with circular concave station, in the sidewall of said circular concave station, be in a pair of cylinder bottom cylinder pin hole is set on the same diametrical position, said cylinder bottom cylinder pin hole connects the sidewall of circular concave station; Piston shoes are sleeved on the cylinder bottom, on said piston shoes, with said cylinder bottom cylinder pin hole corresponding position the piston shoes pin-and-hole are set, and said piston shoes pin-and-hole connects the sidewall of piston shoes; Between the piston shoes pin-and-hole of said cylinder bottom cylinder pin hole and corresponding position, with the straight pin fixed connection of interference fit, said straight pin can be retracted in circular concave station under external impacts.
The characteristics that the utility model hydraulic support is lifted end jack piston shoes syndeton also are in the periphery of said cylinder bottom chamfering to be set.
Compared with present technology, the utility model beneficial effect is embodied in:
1, the utility model is simple in structure, processing capacity is little, material and low cost of manufacture;
2, the utility model is easy and simple to handle, can easily realize installation and removal.
Description of drawings
Fig. 1 is the prior art structural representation;
Fig. 2 is the utility model structural representation;
Fig. 3 is the A-A generalized section of Fig. 2;
Label among the figure: 1 piston shoes; 2 lift end jack; 3 cylinder sleeves; 4 bearing pins; 5 straight pins; 6 circular concave stations.
The specific embodiment
Referring to Fig. 2 and Fig. 3; It is to lift on the cylinder bottom end face of end jack 2 that the present embodiment hydraulic support is lifted end jack piston shoes syndeton; Be in cylinder bottom end face middle position and be provided with circular concave station 6; In the sidewall of circular concave station 6, be in a pair of cylinder bottom cylinder pin hole be set on the same diametrical position, the cylinder bottom cylinder pin hole connects the sidewall of circular concave station 6; Piston shoes 1 are sleeved on the cylinder bottom, on piston shoes 1, with cylinder bottom cylinder pin hole corresponding position the piston shoes pin-and-hole are set, and the piston shoes pin-and-hole connects the sidewall of piston shoes 1; Between the piston shoes pin-and-hole of cylinder bottom cylinder pin hole and corresponding position, with straight pin 5 fixed connections of interference fit, straight pin 5 can be retracted in circular concave station under external impacts.
Installation and removal assembling for the ease of piston shoes 1 can be provided with 20 chamfering in the periphery of cylinder bottom.
Assembling process: at first piston shoes 1 are sleeved on the cylinder bottom of lifting end jack 2; Then; In the piston shoes pin-and-hole, pound into straight pin 5, straight pin 5 is fixed simultaneously in piston shoes pin-and-hole and cylinder bottom cylinder pin hole, thereby piston shoes are fixed on the cylinder bottom; Stop between piston shoes and the cylinder bottom relatively rotating in a circumferential direction, accomplish and install.During dismounting, only need straight pin 5 pounded in the circular concave station 6 of cylinder bottom into and get final product.
Claims (2)
1. hydraulic support is lifted end jack piston shoes syndeton; It is characterized in that on the cylinder bottom end face of lifting end jack (2); Be in cylinder bottom end face middle position and be provided with circular concave station (6); In the sidewall of said circular concave station (6), be in a pair of cylinder bottom cylinder pin hole be set on the same diametrical position, said cylinder bottom cylinder pin hole connects the sidewall of circular concave station (6); Piston shoes (1) are sleeved on the cylinder bottom, on said piston shoes (1), with said cylinder bottom cylinder pin hole corresponding position the piston shoes pin-and-hole are set, and said piston shoes pin-and-hole connects the sidewall of piston shoes (1); Between the piston shoes pin-and-hole of said cylinder bottom cylinder pin hole and corresponding position, with the straight pin fixed connection of interference fit, said straight pin can be retracted in circular concave station under external impacts.
2. hydraulic support according to claim 1 is lifted end jack piston shoes syndeton, it is characterized in that in the periphery of said cylinder bottom chamfering being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200748714U CN202441398U (en) | 2012-03-02 | 2012-03-02 | Sliding shoes connecting structure for bottom-lifting jack of hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200748714U CN202441398U (en) | 2012-03-02 | 2012-03-02 | Sliding shoes connecting structure for bottom-lifting jack of hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441398U true CN202441398U (en) | 2012-09-19 |
Family
ID=46822851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200748714U Expired - Fee Related CN202441398U (en) | 2012-03-02 | 2012-03-02 | Sliding shoes connecting structure for bottom-lifting jack of hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441398U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108373124A (en) * | 2017-12-12 | 2018-08-07 | 柳州市建桥预应力智能设备有限公司 | Turnable jack |
| CN108386220A (en) * | 2018-03-02 | 2018-08-10 | 中煤北京煤矿机械有限责任公司 | Air return lane advance timbering bottom raising mechanism suitable for soft seat |
-
2012
- 2012-03-02 CN CN2012200748714U patent/CN202441398U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108373124A (en) * | 2017-12-12 | 2018-08-07 | 柳州市建桥预应力智能设备有限公司 | Turnable jack |
| CN108386220A (en) * | 2018-03-02 | 2018-08-10 | 中煤北京煤矿机械有限责任公司 | Air return lane advance timbering bottom raising mechanism suitable for soft seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20170302 |