CN105414929A - Ejection device for pin rolls of hydraulic support and pin ejecting method - Google Patents
Ejection device for pin rolls of hydraulic support and pin ejecting method Download PDFInfo
- Publication number
- CN105414929A CN105414929A CN201510560985.8A CN201510560985A CN105414929A CN 105414929 A CN105414929 A CN 105414929A CN 201510560985 A CN201510560985 A CN 201510560985A CN 105414929 A CN105414929 A CN 105414929A
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- Prior art keywords
- hydraulic support
- valve body
- venting
- bearing pin
- support bearing
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- 238000000034 method Methods 0.000 title claims abstract description 30
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 104
- 238000013022 venting Methods 0.000 claims abstract description 96
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 52
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 52
- 238000002309 gasification Methods 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 238000004880 explosion Methods 0.000 claims description 93
- 239000000428 dust Substances 0.000 claims description 92
- 238000010008 shearing Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 3
- 238000007906 compression Methods 0.000 abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to an ejection device for pin rolls of a hydraulic support and a pin ejecting method. The ejection device comprises a liquid carbon dioxide gasification expander and is characterized in that one end of the liquid carbon dioxide gasification expander is connected with a venting head, the other end of the liquid carbon dioxide gasification expander is connected with a valve connector, and the valve connector is connected with a compression end head. Meanwhile, the pin ejecting method through the ejection device for the pin rolls of the hydraulic support is provided. According to the ejection device, one end of the liquid carbon dioxide gasification expander is connected with the venting head, and the other end of the liquid carbon dioxide gasification expander is connected with the valve connector; the valve connector is connected with the compression end head, and the structure of the valve connector being connected with the compression end head is replaced by a structure that a valve connecting body is connected with an adjusting end head. The ejection device is simple in structure and convenient to operate. The pin ejecting method of the ejection device comprises that the pin roll on one side of the hydraulic support or the pin rolls on the two sides of the hydraulic support can be ejected out through ejecting conducted from a venting head exhausting hole of the venting head to the surface of the pin rolls of the hydraulic support, the method is safe, convenient and rapid, and deforming, crushing and bending of the ejected pin rolls are avoided; compared with a chain block method, the speed of disassembling the support is fast, safety hazards are avoided, and the efficiency is high.
Description
Technical field
The present invention relates to a kind of hydraulic support bearing pin extractor and exit method, particularly relating to a kind of liftout attachment and ejector pin method of hydraulic support bearing pin.
Background technology
The speed that withdraws of the hydraulic support of fully mechanized coal face supporting is directly relevant to Safety of Coal Mine Production and economic benefit, determines that one of key withdrawing speed decomposes the speed of hydraulic support, and what the speed of decomposition hydraulic support depended on hydraulic support bearing pin extracts the time.Particularly, spontaneous combustion period short, surrouding rock deformation fast situation large at fully mechanized coal face periodic weighting, problem is particularly important.
The time that hydraulic support uses in down-hole is long, under the running of down-hole rugged environment and heavy load, easily produces corrosion, and some corrosions are serious, and groove step appears in heavy wear, disassembles difficulty, and there is compressive deformation buckling phenomenon, and flexural deformation be cannot take out.
When decomposition hydraulic support exits pin, employing method comprised in the past: dobie method, explosive is stuck with paste on bearing pin surface, and personnel withdraw detonates, and the method operating time is short, technique is simple, but there is great potential safety hazard, such as, easily cause coal-dust explosion, the damage parts such as bearing pin, as being out of shape, breaking, bend, cause secondary to go the difficulty of bearing pin to increase, constructional difficulties is aggravated, and loses time; Chain block method: when working space is larger, utilizes the artificial chain block crane that uses to be extracted by support connecting pin; And when working space is narrow, utilize the artificial chain block crane that uses one side stand connection to be extracted, and opposite side uses iron staff that attachment pegs is knocking-on.The method decomposition support speed is slow, potential safety hazard is many, efficiency is low, and each bottom class 8 people decomposes at most 3 groups, and regulate support high and low position at Reusability boom hoisting, winch towing bracket front and back position is so that crane is pulled pin simultaneously.In the bad grasp in process medium-height trestle position of pulling pin, the time taken is long; There is steel wire rope and have unsafe factor such as bullet people, crane chain rupture etc.
At present, liftout attachment and the method for operating of the hydraulic support bearing pin that a kind of structure is simple, easy to operate, safety, efficiency are high is badly in need of.Reach the engineering time short, safe and reliable, do not produce spark after detonating, meet the apparatus and method that safety regulations in coal mine specifies.
Summary of the invention
The object of the invention is to the extractor and the method for operating technical deficiency that overcome existing hydraulic support bearing pin, a kind of liftout attachment and ejector pin method of hydraulic support bearing pin are provided.
The technical solution adopted for the present invention to solve the technical problems is: the liftout attachment providing a kind of hydraulic support bearing pin, comprise liquid carbon dioxide gasification expander, feature is: liquid carbon dioxide gasification expander one end connects venting of dust explosion head, the other end connects valve body connector, and valve body connector connects pressed end.
Wherein: liquid carbon dioxide gasification expander one end connects venting of dust explosion head, realized by venting of dust explosion head external screw thread and cylindrical shell internal thread, venting of dust explosion head is provided with venting of dust explosion head steam vent, the other end connects valve body connector, realized by valve body connector internal thread and cylindrical shell external screw thread, valve body connector connects pressed end, is realized by valve body termination external screw thread and pressed end internal thread, pressed end is with pressed end adjustment hole, and valve body connector is with detonating cord cable hole.
Wherein: liquid carbon dioxide gasification expander cylindrical shell one end and venting of dust explosion head contact jaw are provided with shearing sheet, the other end is fixed on valve body with the valve body connecting detonating cord electro-heat equipment by cylindrical shell internal thread and valve body external screw thread, with filling switch, filling mouth on valve body, venting of dust explosion head steam vent diameter is less than the diameter of hydraulic support bearing pin, and pressed joint diameter is greater than the diameter of hydraulic support bearing pin.
A kind of ejector pin method utilizing the liftout attachment of hydraulic support bearing pin, comprise and the venting of dust explosion head end of the liftout attachment of hydraulic support bearing pin is aimed at hydraulic support bearing pin center, pressed joint end aims at opposite side hydraulic support bearing pin center, joint is rotatably compressed by pressed end adjustment hole, the liftout attachment of hydraulic support bearing pin is made to be fixed on the hydraulic support of both sides, personnel withdraw, connecing electrical heating electro-heat equipment by detonating cord makes liquid carbon dioxide gasification expand, be ejected into hydraulic support bearing pin surface from the venting of dust explosion head steam vent of venting of dust explosion head, eject hydraulic support bearing pin.
A liftout attachment for hydraulic support bearing pin, comprise liquid carbon dioxide gasification expander, feature is: liquid carbon dioxide gasification expander one end connects venting of dust explosion head, and the other end connects valve body connector, and the connection of valve body connector regulates termination.
Wherein: liquid carbon dioxide gasification expander one end connects venting of dust explosion head, realized by venting of dust explosion head external screw thread and cylindrical shell internal thread, venting of dust explosion head is provided with venting of dust explosion head steam vent, the other end connects valve body connector, realized by valve body connector internal thread and cylindrical shell external screw thread, valve body connector connects adjustment termination, is realized by adjustment termination external screw thread and valve body connector screwed hole.
Wherein: liquid carbon dioxide gasification expander cylindrical shell one end and venting of dust explosion head contact jaw are provided with shearing sheet, the other end is fixed on valve body with the valve body connecting detonating cord electro-heat equipment by cylindrical shell internal thread and valve body external screw thread, with filling switch, filling mouth on valve body, venting of dust explosion head steam vent diameter is less than the diameter of hydraulic support bearing pin, regulates tip diameter to be less than the diameter of hydraulic support bearing pin.
A kind of ejector pin method utilizing the liftout attachment of hydraulic support bearing pin, comprise and the venting of dust explosion head end of the liftout attachment of hydraulic support bearing pin is aimed at hydraulic support bearing pin center, adjustable side head end aims at opposite side hydraulic support bearing pin center, termination is regulated by rotating, the liftout attachment of hydraulic support bearing pin is made to be fixed on the hydraulic support of both sides, personnel withdraw, connecing electrical heating electro-heat equipment by detonating cord makes liquid carbon dioxide gasification expand, be ejected into hydraulic support bearing pin surface from the venting of dust explosion head steam vent of venting of dust explosion head, eject both sides hydraulic support bearing pin.
The invention has the beneficial effects as follows: the liftout attachment of hydraulic support bearing pin of the present invention, liquid carbon dioxide gasification expander one end connects venting of dust explosion head, the other end connects valve body connector, and valve body connector connects pressed end, and changes valve body connector connection adjustable side header structure into.Structure is simple, easy to operate, the venting of dust explosion head steam vent of its ejector pin method from venting of dust explosion head is ejected into hydraulic support bearing pin surface, eject one or both sides hydraulic support bearing pin, safety, convenient, avoided occurring be out of shape, break by ejector pin axle, bending, contrast with chain block method, decomposition support speed soon, high without potential safety hazard, efficiency.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Fig. 1. the unidirectional ejector pin structural representation of the present invention;
Fig. 2. the present invention's unidirectional ejector pin Method And Principle schematic diagram;
Fig. 3. the two-way ejector pin structural representation of the present invention;
Fig. 4. the present invention's two-way ejector pin Method And Principle schematic diagram.
In figure: 18. hydraulic support gripper shoes, 19. hydraulic support bearing pins, 20. detonating cords, 21. fill switch, 22. fill mouth, 23. valve bodies, 24. cylindrical shell internal threads, 25. valve body external screw threads, 26. electro-heat equipments, 27. cylindrical shells, 100. red copper pads, 101. shear sheet, 102. venting of dust explosion head external screw threads, 103. venting of dust explosion head steam vents, 104. venting of dust explosion heads, 105. valve body connector internal threads, 106. valve body connector, 107. pressed end, 108. pressed end adjustment holes, 109. pressed end internal threads, 110. valve body termination external screw threads, 111. detonating cord cable holes, 112. valve body connectors, 113. valve body connector screwed holes, 114. regulate termination external screw thread, 115. regulate termination.
Detailed description of the invention
embodiment one
See Fig. 1, Fig. 2, a liftout attachment for hydraulic support bearing pin, comprise liquid carbon dioxide gasification expander, feature is: liquid carbon dioxide gasification expander one end connects venting of dust explosion head 104, the other end connects valve body connector 106, and valve body connector 106 connects pressed end 107.
Wherein: liquid carbon dioxide gasification expander one end connects venting of dust explosion head 104, realized by venting of dust explosion head external screw thread 102 and cylindrical shell 27 internal thread, venting of dust explosion head 104 is provided with venting of dust explosion head steam vent 103, the other end connects valve body connector 106, realized by valve body connector internal thread 105 and cylindrical shell 27 external screw thread, valve body connector 106 connects pressed end 107, realized by valve body termination external screw thread 110 and pressed end internal thread 109, pressed end 107 is with pressed end adjustment hole 108, and valve body connector 106 is with detonating cord cable hole 111.
embodiment two
See Fig. 1, Fig. 2, a liftout attachment for hydraulic support bearing pin, comprise liquid carbon dioxide gasification expander, feature is: liquid carbon dioxide gasification expander one end connects venting of dust explosion head 104, the other end connects valve body connector 106, and valve body connector 106 connects pressed end 107.
Wherein: liquid carbon dioxide gasification expander one end connects venting of dust explosion head 104, realized by venting of dust explosion head external screw thread 102 and cylindrical shell 27 internal thread, venting of dust explosion head 104 is provided with venting of dust explosion head steam vent 103, the other end connects valve body connector 106, realized by valve body connector internal thread 105 and cylindrical shell 27 external screw thread, valve body connector 106 connects pressed end 107, realized by valve body termination external screw thread 110 and pressed end internal thread 109, pressed end 107 is with pressed end adjustment hole 108, and valve body connector 106 is with detonating cord cable hole 111.
Wherein: liquid carbon dioxide gasification expander cylindrical shell 27 one end and venting of dust explosion head 104 contact jaw are provided with shears sheet 101, the other end is fixed on valve body 27, with filling switch 21, filling mouth 22 on valve body 23 with the valve body 23 connecting detonating cord 20 electro-heat equipment 26 by cylindrical shell internal thread 24 and valve body external screw thread 25.Cylindrical shell 27 is provided with red copper pad 101 with shearing sheet 101 contact site.
embodiment three
See Fig. 1, Fig. 2, a liftout attachment for hydraulic support bearing pin, comprise liquid carbon dioxide gasification expander, feature is: liquid carbon dioxide gasification expander one end connects venting of dust explosion head 104, the other end connects valve body connector 106, and valve body connector 106 connects pressed end 107.
Wherein: liquid carbon dioxide gasification expander one end connects venting of dust explosion head 104, realized by venting of dust explosion head external screw thread 102 and cylindrical shell 27 internal thread, venting of dust explosion head 104 is provided with venting of dust explosion head steam vent 103, the other end connects valve body connector 106, realized by valve body connector internal thread 105 and cylindrical shell 27 external screw thread, valve body connector 106 connects pressed end 107, realized by valve body termination external screw thread 110 and pressed end internal thread 109, pressed end 107 is with pressed end adjustment hole 108, and valve body connector 106 is with detonating cord cable hole 111.
Wherein: liquid carbon dioxide gasification expander cylindrical shell 27 one end and venting of dust explosion head 104 contact jaw are provided with shears sheet 101, the other end is fixed on valve body 27, with filling switch 21, filling mouth 22 on valve body 23 with the valve body 23 connecting detonating cord 20 electro-heat equipment 26 by cylindrical shell internal thread 24 and valve body external screw thread 25.Cylindrical shell 27 is provided with red copper pad 101 with shearing sheet 101 contact site.
Wherein: venting of dust explosion head steam vent 103 diameter is less than the diameter of hydraulic support bearing pin 19, and pressed joint 107 diameter is greater than the diameter of hydraulic support bearing pin 19.
A kind of ejector pin method utilizing the liftout attachment of hydraulic support bearing pin, comprise hydraulic support bearing pin 19 center in venting of dust explosion head 104 end of the liftout attachment of hydraulic support bearing pin aligning hydraulic support gripper shoe 18, pressed joint 107 end aims at hydraulic support bearing pin 19 center in opposite side hydraulic support gripper shoe 18, joint 107 is rotatably compressed by pressed end adjustment hole 108, the liftout attachment of hydraulic support bearing pin is made to be fixed on the hydraulic support of both sides, personnel withdraw, connecing electrical heating electro-heat equipment 26 by detonating cord 20 makes liquid carbon dioxide gasification expand, hydraulic support bearing pin 19 surface hydraulic support gripper shoe 18 is ejected into from the venting of dust explosion head steam vent 103 of venting of dust explosion head 104, eject the hydraulic support bearing pin 19 in hydraulic support gripper shoe 18.
embodiment four
See Fig. 3, Fig. 4, a liftout attachment for hydraulic support bearing pin, comprise liquid carbon dioxide gasification expander, feature is: liquid carbon dioxide gasification expander one end connects venting of dust explosion head 104, the other end connects valve body connector 112, and valve body connector 112 connects adjustment termination 115.
Wherein: liquid carbon dioxide gasification expander one end connects venting of dust explosion head 104, realized by venting of dust explosion head external screw thread 102 and cylindrical shell 27 internal thread, venting of dust explosion head 104 is provided with venting of dust explosion head steam vent 103, the other end connects valve body connector 112, realized by valve body connector internal thread 105 and cylindrical shell 27 external screw thread, valve body connector 112 connects adjustment termination 115, is realized with valve body connector screwed hole 113 by adjustment termination external screw thread 114.
embodiment five
See Fig. 3, Fig. 4, a liftout attachment for hydraulic support bearing pin, comprise liquid carbon dioxide gasification expander, feature is: liquid carbon dioxide gasification expander one end connects venting of dust explosion head 104, the other end connects valve body connector 112, and valve body connector 112 connects adjustment termination 115.
Wherein: liquid carbon dioxide gasification expander one end connects venting of dust explosion head 104, realized by venting of dust explosion head external screw thread 102 and cylindrical shell 27 internal thread, venting of dust explosion head 104 is provided with venting of dust explosion head steam vent 103, the other end connects valve body connector 112, realized by valve body connector internal thread 105 and cylindrical shell 27 external screw thread, valve body connector 112 connects adjustment termination 115, is realized with valve body connector screwed hole 113 by adjustment termination external screw thread 114.
Wherein: liquid carbon dioxide gasification expander cylindrical shell 27 one end and venting of dust explosion head 104 contact jaw are provided with shears sheet 101, the other end is fixed on valve body 27, with filling switch 21, filling mouth 22 on valve body 23 with the valve body 23 connecting detonating cord 20 electro-heat equipment 26 by cylindrical shell internal thread 24 and valve body external screw thread 25.Cylindrical shell 27 is provided with red copper pad 101 with shearing sheet 101 contact site.
embodiment six
See Fig. 3, Fig. 4, a liftout attachment for hydraulic support bearing pin, comprise liquid carbon dioxide gasification expander, feature is: liquid carbon dioxide gasification expander one end connects venting of dust explosion head 104, the other end connects valve body connector 112, and valve body connector 112 connects adjustment termination 115.
Wherein: liquid carbon dioxide gasification expander one end connects venting of dust explosion head 104, realized by venting of dust explosion head external screw thread 102 and cylindrical shell 27 internal thread, venting of dust explosion head 104 is provided with venting of dust explosion head steam vent 103, the other end connects valve body connector 112, realized by valve body connector internal thread 105 and cylindrical shell 27 external screw thread, valve body connector 112 connects adjustment termination 115, is realized with valve body connector screwed hole 113 by adjustment termination external screw thread 114.
Wherein: liquid carbon dioxide gasification expander cylindrical shell 27 one end and venting of dust explosion head 104 contact jaw are provided with shears sheet 101, the other end is fixed on valve body 27, with filling switch 21, filling mouth 22 on valve body 23 with the valve body 23 connecting detonating cord 20 electro-heat equipment 26 by cylindrical shell internal thread 24 and valve body external screw thread 25.Cylindrical shell 27 is provided with red copper pad 101 with shearing sheet 101 contact site.
Wherein: venting of dust explosion head steam vent 103 diameter is less than the diameter of hydraulic support bearing pin 19, termination 115 diameter is regulated to be less than the diameter of hydraulic support bearing pin 19.
A kind of ejector pin method utilizing the liftout attachment of hydraulic support bearing pin, comprise hydraulic support bearing pin 19 center in venting of dust explosion head 104 end of the liftout attachment of hydraulic support bearing pin aligning hydraulic support gripper shoe 18, regulate hydraulic support bearing pin 19 center in termination 115 end aligning opposite side hydraulic support gripper shoe 18, termination 115 is regulated by rotating, the liftout attachment of hydraulic support bearing pin is made to be fixed on the hydraulic support of both sides, personnel withdraw, connecing electrical heating electro-heat equipment 26 by detonating cord 20 makes liquid carbon dioxide gasification expand, hydraulic support bearing pin 19 surface hydraulic support gripper shoe 18 is ejected into from the venting of dust explosion head steam vent 103 of venting of dust explosion head 104, eject the hydraulic support bearing pin 19 in both sides hydraulic support gripper shoe 18.
Claims (10)
1. a liftout attachment for hydraulic support bearing pin, comprises liquid carbon dioxide gasification expander, is characterised in that: liquid carbon dioxide gasification expander one end connects venting of dust explosion head, and the other end connects valve body connector, and valve body connector connects pressed end.
2. the liftout attachment of a kind of hydraulic support bearing pin according to claim 1, it is characterized in that: liquid carbon dioxide gasification expander one end connects venting of dust explosion head, realized by venting of dust explosion head external screw thread and cylindrical shell internal thread, venting of dust explosion head is provided with venting of dust explosion head steam vent, the other end connects valve body connector, realized by valve body connector internal thread and cylindrical shell external screw thread, valve body connector connects pressed end, realized by valve body termination external screw thread and pressed end internal thread, pressed end is with pressed end adjustment hole, and valve body connector is with detonating cord cable hole.
3. the liftout attachment of a kind of hydraulic support bearing pin according to claim 1, it is characterized in that: liquid carbon dioxide gasification expander cylindrical shell one end and venting of dust explosion head contact jaw are provided with shearing sheet, the other end is fixed on valve body with the valve body connecting detonating cord electro-heat equipment by cylindrical shell internal thread and valve body external screw thread, with filling switch, filling mouth on valve body, venting of dust explosion head steam vent diameter is less than the diameter of hydraulic support bearing pin, and pressed joint diameter is greater than the diameter of hydraulic support bearing pin.
4. the liftout attachment of a kind of hydraulic support bearing pin according to claim 2, it is characterized in that: liquid carbon dioxide gasification expander cylindrical shell one end and venting of dust explosion head contact jaw are provided with shearing sheet, the other end is fixed on valve body with the valve body connecting detonating cord electro-heat equipment by cylindrical shell internal thread and valve body external screw thread, with filling switch, filling mouth on valve body, venting of dust explosion head steam vent diameter is less than the diameter of hydraulic support bearing pin, and pressed joint diameter is greater than the diameter of hydraulic support bearing pin.
5. a liftout attachment for hydraulic support bearing pin, comprises liquid carbon dioxide gasification expander, is characterised in that: liquid carbon dioxide gasification expander one end connects venting of dust explosion head, and the other end connects valve body connector, and the connection of valve body connector regulates termination.
6. the liftout attachment of a kind of hydraulic support bearing pin according to claim 5, be characterised in that: liquid carbon dioxide gasification expander one end connects venting of dust explosion head, realized by venting of dust explosion head external screw thread and cylindrical shell internal thread, venting of dust explosion head is provided with venting of dust explosion head steam vent, the other end connects valve body connector, realized by valve body connector internal thread and cylindrical shell external screw thread, valve body connector connects adjustment termination, is realized by adjustment termination external screw thread and valve body connector screwed hole.
7. the liftout attachment of a kind of hydraulic support bearing pin according to claim 5, be characterised in that: liquid carbon dioxide gasification expander cylindrical shell one end and venting of dust explosion head contact jaw are provided with shearing sheet, the other end is fixed on valve body with the valve body connecting detonating cord electro-heat equipment by cylindrical shell internal thread and valve body external screw thread, with filling switch, filling mouth on valve body, venting of dust explosion head steam vent diameter is less than the diameter of hydraulic support bearing pin, regulates tip diameter to be less than the diameter of hydraulic support bearing pin.
8. the liftout attachment of a kind of hydraulic support bearing pin according to claim 6, be characterised in that: liquid carbon dioxide gasification expander cylindrical shell one end and venting of dust explosion head contact jaw are provided with shearing sheet, the other end is fixed on valve body with the valve body connecting detonating cord electro-heat equipment by cylindrical shell internal thread and valve body external screw thread, with filling switch, filling mouth on valve body, venting of dust explosion head steam vent diameter is less than the diameter of hydraulic support bearing pin, regulates tip diameter to be less than the diameter of hydraulic support bearing pin.
9. one kind utilizes the ejector pin method of the liftout attachment of claim 1 or 2 or the hydraulic support bearing pin described in 3 or 4, be characterised in that: comprise and the venting of dust explosion head end of the liftout attachment of hydraulic support bearing pin is aimed at hydraulic support bearing pin center, pressed joint end aims at opposite side hydraulic support bearing pin center, joint is rotatably compressed by pressed end adjustment hole, the liftout attachment of hydraulic support bearing pin is made to be fixed on the hydraulic support of both sides, personnel withdraw, connecing electrical heating electro-heat equipment by detonating cord makes liquid carbon dioxide gasification expand, hydraulic support bearing pin surface is ejected into from the venting of dust explosion head steam vent of venting of dust explosion head, eject hydraulic support bearing pin.
10. one kind utilizes the ejector pin method of the liftout attachment of claim 5 or 6 or the hydraulic support bearing pin described in 7 or 8, be characterised in that: comprise and the venting of dust explosion head end of the liftout attachment of hydraulic support bearing pin is aimed at hydraulic support bearing pin center, adjustable side head end aims at opposite side hydraulic support bearing pin center, termination is regulated by rotating, the liftout attachment of hydraulic support bearing pin is made to be fixed on the hydraulic support of both sides, personnel withdraw, connecing electrical heating electro-heat equipment by detonating cord makes liquid carbon dioxide gasification expand, hydraulic support bearing pin surface is ejected into from the venting of dust explosion head steam vent of venting of dust explosion head, eject both sides hydraulic support bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560985.8A CN105414929B (en) | 2015-09-02 | 2015-09-02 | The liftout attachment and ejector pin method of hydraulic support bearing pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560985.8A CN105414929B (en) | 2015-09-02 | 2015-09-02 | The liftout attachment and ejector pin method of hydraulic support bearing pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105414929A true CN105414929A (en) | 2016-03-23 |
| CN105414929B CN105414929B (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510560985.8A Active CN105414929B (en) | 2015-09-02 | 2015-09-02 | The liftout attachment and ejector pin method of hydraulic support bearing pin |
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| CN (1) | CN105414929B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581931A (en) * | 2018-05-14 | 2018-09-28 | 汪丽 | A kind of large-scale mine hydraulic support detaching device for pin shaft |
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| CN102226410A (en) * | 2011-05-24 | 2011-10-26 | 中煤北京煤矿机械有限责任公司 | Hydraulic support advancing mechanism and thin coal seam hydraulic support |
| CN102501060A (en) * | 2011-11-08 | 2012-06-20 | 枣庄矿业(集团)有限责任公司物流中心 | Disassembling tool for pin shaft of mine hydraulic support |
| CN103033102A (en) * | 2013-01-04 | 2013-04-10 | 煤炭科学研究总院 | Carbon dioxide mining device |
| CN203719552U (en) * | 2014-03-03 | 2014-07-16 | 河北星云航天设备科技有限公司 | Exploiting device with carbon dioxide |
| CN203835393U (en) * | 2014-05-05 | 2014-09-17 | 中煤科工集团工程科技有限公司 | Carbon dioxide mining machine with self-adaptive flying-stop function |
| CN205111224U (en) * | 2015-09-02 | 2016-03-30 | 煤科集团沈阳研究院有限公司 | Ejecting device of hydraulic support round pin axle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581931A (en) * | 2018-05-14 | 2018-09-28 | 汪丽 | A kind of large-scale mine hydraulic support detaching device for pin shaft |
| CN108581931B (en) * | 2018-05-14 | 2020-01-07 | 吉林大黑山钼业股份有限公司 | Large-scale mining hydraulic support round pin axle dismounting device |
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