CN205218981U - Hydraulic pin pulling device - Google Patents
Hydraulic pin pulling device Download PDFInfo
- Publication number
- CN205218981U CN205218981U CN201520847313.0U CN201520847313U CN205218981U CN 205218981 U CN205218981 U CN 205218981U CN 201520847313 U CN201520847313 U CN 201520847313U CN 205218981 U CN205218981 U CN 205218981U
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- CN
- China
- Prior art keywords
- pin
- piston rod
- hydraulic
- jack
- pulling
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- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of coal mine hydraulic support coupling pin's disassembling equipment, the utility model discloses a can dismantle hydraulic support's coupling pin fast, safely, provide a hydraulic pin pulling device, including hydraulic jack, a top section of thick bamboo and the head of pulling pin, the top barrel casing is adorned in the piston rod of jack peripherally, the head of pulling pin includes the round pin hub connection section and the piston rod linkage segment of transitional coupling, and it has the pinhole to open on the piston rod linkage segment, and the piston rod linkage segment passes through bolt connection with the tailpiece of the piston rod head of jack. The utility model discloses a through head and the round pin hub connection of pulling pin, utilize hydraulic jack's pulling force to extract connecting link pin, whole process is by power unit hydraulic power unit, control mechanism hydraulic pressure valves, driving and wire rope completions of mutually supporting in addition, and work efficiency is high, is especially combining and is adopting under the circumstances that a periodic weighting is big, spontaneous combustion period is short, surrouding rock deformation is fast, and the pin removal brings, and rapid effect of decomposing the support is better, and operation process is safer.
Description
Technical field
The utility model belongs to the detaching equipment technical field of coal-mine hydraulic support attachment pegs, is specifically related to a kind of hydraulic draw pin assembly.
Background technology
When overhaul underground coal mine fully-mechanized mining working uses hydraulic support, hydraulic support must be decomposed ability overhaul, decompose the speed of hydraulic support to decide to the labour cost caused to enterprise when the time of client's supply of material and overhaul, and decompose hydraulic pressure backbone block face and depend on the time of pulling out attachment pegs.The method adopted when decomposition hydraulic support is in the past pulled pin is extracted after utilizing artificial use chain block crane one side stand attachment pegs to be welded, and opposite side uses iron staff by knocking-on for its attachment pegs.The method decomposes that support speed is slow, potential safety hazard is many, and efficiency is low, and the most multipotency of per tour Chai Jia group 5 people decomposes 2 groups of hydraulic supports.And due to the high and low position of attachment pegs different, move frequently, fixing chain block not only cause temporal waste, if the fixed angle of chain block, mode also may cause the accident of chain rupture to occur, have a strong impact on the safety of tearing frame panelists open.
Summary of the invention
The utility model, in order to dismantle the attachment pegs of hydraulic support quickly and safely, provides a kind of hydraulic draw pin assembly.
The utility model adopts following technical scheme:
A kind of hydraulic draw pin assembly, comprise hydraulic jack, top cylinder and pin pulling head, the piston rod that described top collet is loaded on jack is peripheral, described pin pulling head comprises pinned connection section and the piston rod linkage section of transition connection, piston rod linkage section has pin-and-hole, and piston rod linkage section is connected by latch with the piston rod end of jack.
Described pinned connection section is cylindricality screw rod.
Described pinned connection section is vertebral body structure, and bigger diameter end is connected with piston rod linkage section.
Described top cylinder is provided with some suspension ring.
The utility model has following beneficial effect:
1, the utility model is by pin pulling head and pinned connection, the pulling force of hydraulic jack is utilized to be extracted by connecting link pin, whole process has been cooperatively interacted by actuating unit hydraulic power unit, controlling organization hydraulic valve bank, in addition driving and steel wire rope, operating efficiency is high, particularly large at fully mechanized coal face periodic weighting, when spontaneous combustion period is short, surrouding rock deformation is fast, the effect of the rapid decomposition support that pin removal brings is better, and operating process is safer;
2, the pin pulling head various structures of this device, can be applicable to dismantle the bearing pin of different structure, as down-hole withdraw decompose hydraulic support time, bolt hole pin pulling head (Fig. 2) can be adopted;
3, when not reducing pulling force, the utility model device can adopt compared with short oil cylinder and shorter top cylinder, more compact structure, and can alleviate this installation weight again while shortening usage space, single this device that just can hold up carries out operation;
4, this apparatus structure is simple, and easy accessibility, without the need to the change to existing equipment, with low cost, working service is simple.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2,3 is the structural representation of two kinds of pin pulling heads;
In figure: 1-suspension ring, 2-hydraulic jack, 3-push up cylinder, 4-pin pulling head, 5-latch, 6-bearing pin;
41-pinned connection section, 42-piston rod linkage section, 43-pin-and-hole.
Detailed description of the invention
By reference to the accompanying drawings, detailed description of the invention of the present utility model is described further:
Hydraulic draw pin assembly as shown in Figure 1, comprise hydraulic jack 2, top cylinder 3 and pin pulling head 4, the piston rod that described top cylinder 3 is set in jack 2 is peripheral, described pin pulling head 4 comprises pinned connection section 41 and the piston rod linkage section 42 of transition connection, piston rod linkage section 42 has pin-and-hole 43, piston rod linkage section 42 is connected by latch 5 with the piston rod end of jack 2, latch 5 is quick assembling or the attachment pegs changing pin pulling head 4, because the pulling force of jack is very large, after heat treatment make so this pin is special substance, bearing pin is avoided to bend can not changing or dismantle the problem of pin pulling head to occur.
Pin pulling head 4 is the execution unit of this device, is effectively extracted by target bearing pin 6 by power source operation jack.There are two kinds of pin pulling heads, for bearing pin carries a pin pulling head for bolt hole, use front screw tap the corrosion in pin bolt hole to be cleaned out, be screwed into pin bolt hole with the screw rod end of pin pulling head, then pin pulling head is connected with the piston rod headring of hydraulic jack, as shown in Figure 2.A kind of do not have bolt hole for bearing pin, and need special pin pulling head vertical welding to bearing pin center, be then connected with pin removal, the structure of pin pulling head as shown in Figure 3.
This device and actuating unit hydraulic power unit, controlling organization hydraulic valve bank, to drive a vehicle and steel wire rope is used in conjunction with each other in addition, power is provided by hydraulic power unit, attachment pegs is extracted with the pulling force of 500KN by piston rod of hydraulic jack, for the ease of steadily lifting this device, top cylinder 3 is provided with two suspension ring 1.
During use, hydraulic power supply push-and-pull hydraulic jack is utilized to be power, top cartridge withstands hydraulic support panel and pin pulling head by after the fastening bearing pin of the mode such as bolt or welding, and pull the device that target bearing pin is extracted by piston rod of hydraulic jack, in Fig. 1, the direction of arrow is direction of pulling pin.
The utility model is the special pin pulling out device when overhaul hydraulic support disintegrates, revolutionize tradition to pull pin the bad phenomenon such as the operating efficiency of mode is low, potential safety hazard is many, particularly withdraw (bolt hole pin pulling head can only be used) effect when decomposing hydraulic support in down-hole better, when not reducing pulling force, use compared with short oil cylinder and shorter top cylinder, can alleviate this installation weight again while shortening usage space, single this device that just can hold up carries out operation, respond well.Particularly large at fully mechanized coal face periodic weighting, when spontaneous combustion period is short, surrouding rock deformation is fast, the effect of the rapid decomposition support that pin removal brings is better.
Claims (4)
1. a hydraulic draw pin assembly, it is characterized in that: comprise hydraulic jack (2), top cylinder (3) and pin pulling head (4), the piston rod that described top cylinder (3) is set in jack (2) is peripheral, described pin pulling head (4) comprises pinned connection section (41) and the piston rod linkage section (42) of transition connection, piston rod linkage section (42) has pin-and-hole (43), piston rod linkage section (42) is connected by latch (5) with the piston rod end of jack (2).
2. hydraulic draw pin assembly according to claim 1, is characterized in that: described pinned connection section (41) is cylindricality screw rod.
3. hydraulic draw pin assembly according to claim 1, is characterized in that: described pinned connection section (41) is vertebral body structure, and bigger diameter end is connected with piston rod linkage section (42).
4. hydraulic draw pin assembly according to claim 1, is characterized in that: described top cylinder (3) is provided with some suspension ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847313.0U CN205218981U (en) | 2015-10-29 | 2015-10-29 | Hydraulic pin pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847313.0U CN205218981U (en) | 2015-10-29 | 2015-10-29 | Hydraulic pin pulling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205218981U true CN205218981U (en) | 2016-05-11 |
Family
ID=55894075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520847313.0U Expired - Fee Related CN205218981U (en) | 2015-10-29 | 2015-10-29 | Hydraulic pin pulling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205218981U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475957A (en) * | 2016-11-29 | 2017-03-08 | 淮北矿业股份有限公司 | A kind of comprehensive pick equipment means for tearing-down pin shaft of fully mechanized mining and its using method |
| CN106892132A (en) * | 2017-02-14 | 2017-06-27 | 江西昌河航空工业有限公司 | A kind of helicopter hub horizontal pin extracting tool and its method |
| CN107932419A (en) * | 2017-12-21 | 2018-04-20 | 淮南矿业(集团)有限责任公司 | Hydraulic pressure pin pulling out device and the method pulled pin using the device |
-
2015
- 2015-10-29 CN CN201520847313.0U patent/CN205218981U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475957A (en) * | 2016-11-29 | 2017-03-08 | 淮北矿业股份有限公司 | A kind of comprehensive pick equipment means for tearing-down pin shaft of fully mechanized mining and its using method |
| CN106892132A (en) * | 2017-02-14 | 2017-06-27 | 江西昌河航空工业有限公司 | A kind of helicopter hub horizontal pin extracting tool and its method |
| CN107932419A (en) * | 2017-12-21 | 2018-04-20 | 淮南矿业(集团)有限责任公司 | Hydraulic pressure pin pulling out device and the method pulled pin using the device |
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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: 20160511 Termination date: 20191029 |