CN211761143U - Device for replacing piston seal of hydraulic support in pit - Google Patents
Device for replacing piston seal of hydraulic support in pit Download PDFInfo
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- CN211761143U CN211761143U CN201922236272.2U CN201922236272U CN211761143U CN 211761143 U CN211761143 U CN 211761143U CN 201922236272 U CN201922236272 U CN 201922236272U CN 211761143 U CN211761143 U CN 211761143U
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Abstract
The utility model provides a change hydraulic support piston sealed device in pit, draw the piece, two including mount, parallel arrangement's two push-and-pull mechanisms and post living draw the piece, two push-and-pull mechanism's stiff end fixed mounting is in on the mount, two form the flexible passageway of stand between the push-and-pull mechanism, the post living draws the piece to install two push-and-pull mechanism's drive end. The device for replacing the piston seal of the hydraulic support in the pit has the advantages of capability of performing underground operation, time and labor conservation, low replacement cost and no influence on production.
Description
Technical Field
The utility model relates to a hydraulic support maintenance device, specific theory has related to a change sealed device of hydraulic support piston in pit.
Background
The hydraulic support is a device for controlling the mine pressure of a coal face, and due to the limited underground condition, the piston sealing device of the conventional underground hydraulic support cannot be directly replaced underground after being damaged, and only an upright post is lifted to a factory for replacement; namely, 2-3 chain blocks are needed to be used, 5-6 persons spend 1 shift of time to replace, only the shaft is lifted, the steps of detaching the upright post, carrying to the scraper blade, carrying to the reversed loader, carrying to the nearest mine in the roadway along with the scraper blade of the reversed loader, pushing and pulling to the mine car, pulling the upright post into the mine car to lift the shaft by using the chain blocks and the like are included, the long-distance transportation of the vehicle is required to be arranged after the shaft is lifted, the vehicle is required to be pulled back to the factory for replacement, the shaft is required to be moved back to the mine after the replacement, the shaft is removed for installation and the like, the time is long, the labor consumption is large, the replacement cost is high, the safety is low, and the production is influenced sometimes.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The utility model aims at the not enough of prior art to a change hydraulic support piston sealing's device in pit that can borehole operation, labour saving and time saving, change with low costs, not influence production is provided.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the device for replacing the piston seal of the hydraulic support in the pit comprises a fixed frame, two push-pull mechanisms and a plunger pulling piece, wherein the two push-pull mechanisms are arranged in parallel, fixed ends of the two push-pull mechanisms are fixedly arranged on the fixed frame, a stand column telescopic channel is formed between the two push-pull mechanisms, and the plunger pulling piece is arranged at the driving ends of the two push-pull mechanisms.
Based on the above, the two push-pull mechanisms are both pushing jacks.
Based on the above, the mount includes the cylinder body lantern ring and sets up cylinder body locking piece on the cylinder body lantern ring, two mounting holes have been seted up to the symmetry on the anchor ring of cylinder body lantern ring, two the stiff end one-to-one of bulldozing jack is installed two in the mounting hole.
Based on the above, the cylinder locking piece is a joint seat clamping piece.
Based on the above, the joint seat clamping piece is provided with the locking bolt.
Based on the above, the push-pull jack further comprises a guide sleeve ring, wherein two through holes are symmetrically formed in the ring surface of the guide sleeve ring, and the end parts of the fixed ends of the two push-pull jacks are correspondingly arranged in the two through holes.
Based on the above, jack's stiff end is including connecting the extension rod in its cylinder body bottom, the extension rod top with jack's cylinder body bottom surface forms the centre gripping step, first perforation has been seted up on extension rod upper portion, first round pin axle is worn to be equipped with by detachably in the first perforation, first round pin axle with the centre gripping step centre gripping is in the both sides of the cylinder body lantern ring.
On the basis, a second perforation and a third perforation are further formed in the bottom of the extension rod, a second pin shaft is detachably arranged on the second perforation in a penetrating mode, a third pin shaft is detachably arranged on the third perforation in a penetrating mode, and the second pin shaft and the third pin shaft are clamped on two sides of the guide lantern ring.
Based on the above, the plunger pulling piece is an insertion rod for being inserted into the plunger hole.
Compared with the prior art, the utility model has substantive characteristics and progress, specific theory, the utility model discloses small in size is applicable to borehole operation, during the use, will break down the pillar head with hydraulic support earlier, and then during with the pillar retraction well jar, make the top leave enough and draw the space, tear the rubber tube of pillar head department open and install the end cap, make pillar and well jar tie up as an organic wholely, fix after along with the position of mount, will two the push-and-pull mechanism framework is established in the stand both sides, use the pillar draws the piece and fixes the pillar head, starts two the push-and-pull mechanism is flexible to pull out the pillar in succession well jar together, can change the sealed of well jar department, after having changed, aligns pillar and jar mouth, starts two again the push-and-pull mechanism is flexible to impress the pillar in the cylinder body in succession in the pillar in succession, tears the end cap of pillar head department open and adorns the rubber tube, and the original state can, it has can borehole operation, Time and labor saving, low replacement cost and no influence on production.
Furthermore, the pushing jack is used as the push-pull mechanism, and the detached rubber tube can be directly used for providing power for the pushing jack, so that the problem of a power source is solved; the cylinder body lantern ring can be coaxially sleeved on the outer side of the cylinder body, and the fixed ends of the two pushing and pressing jacks are symmetrically arranged, so that pulling stability is improved; the joint base clamping piece can be clamped and fixed on a joint base of the cylinder body, and the cylinder body lantern ring is fixed by utilizing the convex part of the cylinder body.
Further, the cylinder body is also established to the direction lantern ring, because bulldoze the jack and be rod-shaped structure, a fixed point leads to easily bulldoze the jack and draw the in-process and produce the slope, influence the smooth and easy pulling of plunger, the direction lantern ring will two the stiff end of bulldozing the jack is fixed together, forms two fixed points in flexible direction to avoid drawing the in-process of dragging and producing the slope.
Furthermore, the extension rod and set up first perforation, second perforation and the third perforation on the extension rod pole body are convenient for push jack with the cylinder body lantern ring with the dismantlement and the equipment of direction lantern ring are applicable to the environment in the pit better.
Drawings
Fig. 1 is a schematic view of the usage state of the device for replacing the piston seal of the hydraulic support in the well.
Fig. 2 is a schematic structural view of the middle pushing jack of the present invention.
In the figure: 1. a cylinder body lantern ring; 2. a jack; 3. inserting a rod; 4. a guide collar; 5. a cylinder body; 6. a plunger; 7. a middle cylinder; 8. a plug; 9. an extension rod; 10. a joint base clamp; 11. a first pin shaft; 12. a second pin shaft; 13. a third pin shaft; 51. a joint base; 91. clamping the step; 92. a first perforation; 93. a second perforation; 94. and a third perforation.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
As shown in fig. 1 and 2, a device for replacing a piston seal of a hydraulic support in a well comprises a fixed frame, two push-pull mechanisms and a plunger pulling piece, wherein the two push-pull mechanisms and the plunger pulling piece are arranged in parallel, fixed ends of the two push-pull mechanisms are fixedly arranged on the fixed frame, a plunger telescopic channel is formed between the two push-pull mechanisms, the plunger telescopic channel is a plunger position when the plunger 6 is disassembled and assembled, the plunger pulling piece is arranged at a driving end of the two push-pull mechanisms and used for fixing a column head of the plunger 6, and when the device is used, pulling of the plunger 6 is realized through the stretching of the two push-pull mechanisms.
Specifically, the two push-pull mechanisms are both push jacks 2, and as the push jacks 2 and the power source of the hydraulic support upright column can be used in common, the push jacks 2 can directly use rubber tubes detached from the column heads to provide power; in other embodiments, the pulling may be performed by using a telescopic device having sufficient power, such as an air cylinder, regardless of the convenience of power. The plunger pulling piece is specifically an inserted rod 3 inserted into a plunger 6 column hole, and when the plunger pulling piece is used, the inserted rod 3 penetrates through the column hole and then two sections of the inserted rod are fixed at the driving end of the pushing jack 2; in other embodiments, the plunger 6 may be pulled by using a thick chain, a hanger, or the like.
The fixing frame specifically comprises a cylinder body sleeve ring 1 and a cylinder body locking piece arranged on the cylinder body sleeve ring 1, two mounting holes are symmetrically formed in the ring surface of the cylinder body sleeve ring 1, the fixed ends of the two pushing jacks 2 are correspondingly mounted in the two mounting holes one by one, the cylinder body locking piece can be specifically a joint seat clamping piece 10, and a locking bolt is arranged on the joint seat clamping piece 10; during installation, the cylinder body lantern ring 1 can be coaxially sleeved on the outer side of the cylinder body 5, the joint seat clamping piece 10 is utilized to clamp the joint seat 11 fixed on the cylinder body 5, and fixation can be completed, and the fixed ends of the push jacks 2 are symmetrically installed, so that the pulling stability can be improved. In other embodiments, the fixing frame can also be fixed by using underground fixable points such as a hydraulic support base and the like, but the fixing frame is not as convenient to align and disassemble as the cylinder body lantern ring 1 in the embodiment.
In order to ensure the smoothness of pulling, the device further comprises a guide sleeve ring 4, wherein two through holes are symmetrically formed in the ring surface of the guide sleeve ring 4, and the end parts of the fixed ends of the two pushing jacks 2 are correspondingly arranged in the two through holes one by one; because bulldoze the jack and be rod-shaped structure, a fixed point leads to easily bulldoze the jack and draw the in-process and produce the slope, influence the smooth and easy pulling of plunger, during the installation, will the guide lantern ring 4 also overlaps and establishes in 5 outsides of cylinder body, and the stiff end tip that bulldozes jack 2 is fixed together, and on the flexible direction, bulldoze jack 2 has two fixed points to guarantee that bulldoze jack 2 draws the in-process and not take place the slope.
In order to be better suitable for the underground environment, the pushing jack 2, the cylinder sleeve ring 1 and the guide sleeve ring 4 are both detachable and assembled structures, specifically, the fixed end of the pushing jack 2 includes an extension rod 9 connected to the bottom end of the cylinder, the top end of the extension rod 9 and the bottom surface of the cylinder of the pushing jack 2 form a clamping step 91, a first through hole 92 is formed in the upper portion of the extension rod 9, a first pin shaft 11 is detachably inserted into the first through hole 92, and the first pin shaft 11 and the clamping step 91 are clamped at two sides of the cylinder sleeve ring 1; a second through hole 93 and a third through hole 94 are further formed in the bottom of the extension rod 9, a second pin shaft 12 is detachably arranged on the second through hole 93 in a penetrating mode, a third pin shaft 13 is detachably arranged on the third through hole 94 in a penetrating mode, and the second pin shaft 12 and the third pin shaft 13 are clamped on two sides of the guide lantern ring 4.
During the concrete use, because hydraulic support usually has two or more than two stands, when changing in the pit, in order to guarantee the support of hydraulic support to the mining working face, can change by one, concrete step is as follows:
(1) disassembling the head of the plunger 6 and the top of the hydraulic support;
(2) retracting the plunger 6 into the middle cylinder 7 to leave a sufficient pulling space above;
(3) the rubber tube at the column cap is removed and the plug 8 is arranged, so that the plunger 6 and the middle cylinder 7 are integrated;
(4) sleeving the assembly parts of the guide lantern ring 4, the cylinder lantern ring 1 and the pushing jack 2 from the upper part of the upright column, clamping and fixing the assembly parts with a joint seat 51 on the cylinder 5 by using a joint seat clamping part 10, or sleeving the guide lantern ring 4 and the cylinder lantern ring 1 outside the cylinder 5, then assembling the pushing jack 2, and connecting the disassembled rubber pipe to the pushing jack 2 after the installation is finished;
(5) inserting the inserted link 3 into a column hole of the plunger 6, wherein two ends of the inserted link 3 are fixed at the driving end of the pushing jack 2;
(6) starting the pushing jack 2, extending the pushing jack 2, and pulling out the plunger 6 together with the middle cylinder 7 to a position of 100mm of a cylinder opening;
(7) replacing the middle cylinder seal;
(8) aligning the plunger 6 with the cylinder opening, starting the pushing jack 2, shortening the pushing jack 2, and pressing the plunger 6 together with the middle cylinder 7 into the cylinder body 5;
(9) and disassembling the device to restore the hydraulic support.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (9)
1. The utility model provides a change sealed device of hydraulic support piston in pit which characterized in that: the device comprises a fixed frame, two push-pull mechanisms and a plunger pulling piece which are arranged in parallel, wherein fixed ends of the two push-pull mechanisms are fixedly arranged on the fixed frame, a stand column telescopic channel is formed between the two push-pull mechanisms, and the plunger pulling piece is arranged at the driving ends of the two push-pull mechanisms.
2. The apparatus for changing a hydraulic mount piston seal downhole as in claim 1, wherein: and both the push-pull mechanisms are pushing jacks.
3. The apparatus for changing a hydraulic mount piston seal downhole as in claim 2, wherein: the mount includes the cylinder body lantern ring and sets up cylinder body locking piece on the cylinder body lantern ring, two mounting holes have been seted up to the symmetry on the anchor ring of cylinder body lantern ring, two the stiff end one-to-one of bulldozing jack is installed two in the mounting hole.
4. The apparatus for changing a hydraulic mount piston seal downhole as in claim 3, wherein: the cylinder locking piece is a joint seat clamping piece.
5. The apparatus for changing a hydraulic mount piston seal downhole as in claim 4, wherein: and the joint seat clamping piece is provided with a locking bolt.
6. An apparatus for changing a hydraulic support piston seal downhole according to any of claims 3 to 5, wherein: the push-and-pull jack further comprises a guide sleeve ring, wherein two through holes are symmetrically formed in the ring surface of the guide sleeve ring, and the end parts of the fixed ends of the two push-and-pull jacks are correspondingly arranged in the two through holes one by one.
7. The apparatus for changing a hydraulic mount piston seal downhole as in claim 6, wherein: the stiff end that bulldozes jack is including connecting the extension rod in its cylinder body bottom, the extension rod top with the cylinder body bottom surface that bulldozes jack forms the centre gripping step, first perforation has been seted up on extension rod upper portion, detachably wears to be equipped with first round pin axle in the first perforation, first round pin axle with the centre gripping step centre gripping is in the both sides of the cylinder body lantern ring.
8. The apparatus for changing a hydraulic mount piston seal downhole as in claim 7, wherein: the extension rod bottom has still seted up the second and has perforated and the third, the second is perforated to go up detachably and is worn to be equipped with the second round pin axle, the third is perforated to go up detachably and is worn to be equipped with the third round pin axle, the second round pin axle with the centre gripping of third round pin axle is in the both sides of direction lantern ring.
9. An apparatus for downhole replacement of a hydraulic support piston seal according to any of claims 1, 2, 3, 4, 5, 7 or 8, wherein: the plunger pulling piece is an insertion rod inserted in the plunger hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922236272.2U CN211761143U (en) | 2019-12-13 | 2019-12-13 | Device for replacing piston seal of hydraulic support in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922236272.2U CN211761143U (en) | 2019-12-13 | 2019-12-13 | Device for replacing piston seal of hydraulic support in pit |
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| Publication Number | Publication Date |
|---|---|
| CN211761143U true CN211761143U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922236272.2U Active CN211761143U (en) | 2019-12-13 | 2019-12-13 | Device for replacing piston seal of hydraulic support in pit |
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| CN (1) | CN211761143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977860A (en) * | 2019-12-13 | 2020-04-10 | 郑州煤机综机设备有限公司 | Device for replacing piston seal of hydraulic support in well and method for replacing seal |
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2019
- 2019-12-13 CN CN201922236272.2U patent/CN211761143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977860A (en) * | 2019-12-13 | 2020-04-10 | 郑州煤机综机设备有限公司 | Device for replacing piston seal of hydraulic support in well and method for replacing seal |
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