CN217620328U - Shaft puller for disassembling large-scale hydraulic support in coal mine - Google Patents
Shaft puller for disassembling large-scale hydraulic support in coal mine Download PDFInfo
- Publication number
- CN217620328U CN217620328U CN202221466516.1U CN202221466516U CN217620328U CN 217620328 U CN217620328 U CN 217620328U CN 202221466516 U CN202221466516 U CN 202221466516U CN 217620328 U CN217620328 U CN 217620328U
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- Prior art keywords
- tie
- strength bolt
- hydraulic support
- shaft
- disassembling
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- 239000003245 coal Substances 0.000 title claims description 9
- 210000000056 organ Anatomy 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000005065 mining Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Abstract
The utility model discloses a large-scale hydraulic support in colliery is disassembled and is used pulling out axial organ, including link, the hydraulic jack that sets up through the link, the link be equipped with left tie-beam, right tie-beam, be equipped with 2 interval parallel arrangement's hydraulic jack between left tie-beam, the right tie-beam, be equipped with the high strength bolt between two hydraulic jack, the left end of high strength bolt is worn out the centre bore of left tie-beam and is waited to disassemble the round pin hub connection, the right-hand member of high strength bolt is worn out the centre bore of right tie-beam and is equipped with the nut in end department. The shaft pulling device is light in weight, large in tension and suitable for efficiently disassembling the large hydraulic support hinged pin shaft in the pit.
Description
Technical Field
The utility model relates to a mining machinery, exactly one kind is the large-scale hydraulic support in colliery is disassembled and is used pulling out the axial organ.
Background
The hydraulic support is a necessary supporting facility for a comprehensive mechanized coal mining working face of a coal mine, the hydraulic support with a large mining height is generally used along with continuous extension of the well depth, the working resistance of the hydraulic support is increased, the connecting pin shaft between structural members of the hydraulic support is also increased, and the size of the pin shaft is increased from original phi 80 x 400 to phi 150 x 750. The large mining height hydraulic support is large in size and weight, the hydraulic support needs to be disassembled into three parts during underground installation and recovery so as to be convenient to transport and go into the well, when the support is disassembled, the shaft puller needs to pull out the pin shafts of all the components of the hydraulic support, the phi 150 x 750 needs to be pulled out, the clamped pin shafts need to be pulled out, and the old mechanical pin puller and the small-tonnage hydraulic shaft puller cannot meet the working requirements of disassembly. In addition, the design of the current working face is also developed towards a large mining face and a long trend, so that the hydraulic support needs about two years from being mounted on a disassembling and face reversing way, when the support is recycled and disassembled, the hinged large shaft is seriously corroded in the underground environment, the disassembly is more difficult, the support recycling efficiency is low, and therefore the shaft extractor suitable for disassembling the large hydraulic support needs to be developed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a large-scale hydraulic support in colliery is disassembled with pulling out a ware, should pull out a ware light in weight, the pulling force is big, be fit for the underground high efficiency disassemble large-scale hydraulic support hinge pin axle.
In order to solve the above technical problem, the utility model discloses a following technical means:
the utility model provides a large-scale hydraulic support in colliery is disassembled with pulling out axial organ, includes the link, through the hydraulic jack that the link set up, the link be equipped with left tie-beam, right tie-beam, be equipped with two interval parallel arrangement's hydraulic jack between left tie-beam, the right tie-beam, be equipped with the high strength bolt between two hydraulic jack, the left end of high strength bolt is worn out the centre bore of left tie-beam and is waited to disassemble the round pin hub connection, the right-hand member of high strength bolt is worn out the centre bore of right tie-beam and is equipped with the nut in end department.
The utility model discloses utilize left tie-beam, right tie-beam and two hydraulic jack of link to constitute braced frame, through set up high strength bolt between left tie-beam, right tie-beam, utilize high strength bolt's left end to connect and wait to disassemble the round pin axle, utilize two hydraulic jack common effects to connect the high strength bolt on right tie-beam and realize dialling out and disassemble.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a pull out axle ware is that the axle is pulled out to the extension force that utilizes hydraulic jack, because the jack stretches out the cavity area and withdraws the big twice of cavity area than, under the same condition of pump pressure, the pulling force is the big twice also to, through setting up the link two cylinder diameter 100mm pull out the round pin jack and utilize thick 80 mm's iron plate to fix and use together, the pulling force reaches 50 tons, if the pulling force is not enough, can also bind 4 simultaneously and pull out round pin jack and use simultaneously, the pulling force can reach 100 tons. In addition, the connecting mode of the pin shaft to be disassembled is simple, accessories such as a connecting head and the like do not need to be processed, the structure is simple, the weight is light, the tension is large, the operation is convenient, and the pin shaft is labor-saving and time-saving to pull and disassemble; the high-strength bolt is directly connected with the screw hole in the end face of the support pin shaft, the pin shaft with various thread specifications can be directly pulled out by changing the size of the high-strength bolt, and the universal bolt has universality. The shaft pulling device is used for disassembling Zy9200/25.5/55 supports on a 3221s working surface in the underground, and the effect is very good.
The further preferred technical scheme is as follows:
the left end and the right end of the connecting frame are both provided with lifting rings, and the lifting rings are connected with lifting ropes.
Through setting up rings, lifting ropes, be convenient for hoist device with this pull out the axial organ and hoist, guarantee to pull out the axial organ axis and tear the round pin axle concentric with what tear open, be convenient for connect and tear the round pin axle open.
The lifting ring that left end portion was equipped with connect and set up on left tie-beam, lifting ring 3 that right-hand member portion was equipped with sets up on linking bridge, linking bridge and right tie-beam adjacent and parallel arrangement, linking bridge's both ends are connected with hydraulic jack through clamp (4) respectively.
Through the arrangement, the gravity center is stable during hoisting.
The right connecting beam is connected with a protective cover, and the protective cover is arranged at the joint of the right connecting beam and the high-strength bolt.
Through setting up the protection casing, prevent that high strength bolt fracture departure from causing the harm to people or facility.
The center hole of the left connecting beam is larger than the diameter of the pin shaft to be disassembled.
Through above-mentioned setting, when disassembling the lower pin axle, the hole should be able to hold and wait to disassemble round pin axle, is convenient for disassemble.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a hydraulic control system diagram of the present invention;
description of reference numerals: 1-pin shaft to be disassembled; 2-a pin pulling jack; 3-lifting a ring; 4-left connecting beam; 5, clamping a hoop; 6-high-strength bolts; 7-a protective cover; 8-a nut; 9-right connecting beam.
Detailed Description
The present invention will be further described with reference to the following embodiments shown in the drawings.
Referring to fig. 1 and 2, the shaft puller for disassembling the large hydraulic support of the coal mine consists of a connecting frame, a hydraulic jack 2 arranged through the connecting frame and a high-strength bolt 6; two hydraulic jacks 2 arranged in parallel at intervals are arranged between the left connecting beam 4 and the right connecting beam 9, a high-strength bolt 6 is arranged between the two hydraulic jacks 2, the left end of the high-strength bolt 6 penetrates out of the central hole of the left connecting beam 4 to be connected with the pin shaft 1 to be disassembled, and the right end of the high-strength bolt 6 penetrates out of the central hole of the right connecting beam 9 and is provided with a nut 8 at the end.
Utilize left tie-beam 4, right tie-beam 9 and two hydraulic jack 2 of link to constitute braced frame, through set up high-strength bolt 6 between left tie-beam 4, right tie-beam 9, utilize the left end of high-strength bolt 6 to connect and wait to disassemble round pin axle 1, utilize two hydraulic jack 2 coactions to realize dialling out and disassembling in the high-strength bolt 6 of connecting on right tie-beam 9.
The left end and the right end of the connecting frame are both provided with lifting rings 3, and the lifting rings 3 are connected with lifting ropes.
Through setting up rings 3, lifting rope, be convenient for with hoisting device with this pull out the axial organ lift, guarantee to pull out axial organ axis and tear the round pin axle concentric with tearing open, be convenient for connect and tear the round pin axle open.
The left end portion have a rings 3 connect and set up on left tie-beam, the right end portion have a rings 3 set up on linking bridge, linking bridge and the adjacent and parallel arrangement of right tie-beam 9, linking bridge's both ends are connected with hydraulic jack 2 through clamp 5 respectively.
Through the arrangement, the center of gravity is stable when the crane is lifted.
The right connecting beam 9 is connected with a protective cover 7, and the protective cover 7 is arranged at the connecting position of the right connecting beam 9 and the high-strength bolt 6.
Through setting up protection casing 7, prevent that high-strength bolt 6 fracture departure from causing the harm to people or facility.
The central hole of the left connecting beam 4 is larger than the diameter of the pin shaft 1 to be disassembled.
Through the arrangement, when the lower pin shaft is disassembled, the pin shaft 1 to be disassembled can be accommodated in the hole, so that the disassembly is convenient.
The shaft pulling device has the following working principle and process:
(a) Carrying out fastening treatment on the internal thread hole on the end face of the hinge pin shaft of the hydraulic support to be disassembled; the hydraulic support to be disassembled is connected by a pin shaft, the hydraulic support is disassembled by disassembling the pin shaft, the internal thread is a threaded hole on the end surface of one side of the pin shaft 1 to be disassembled and is used for being connected with the high-strength bolt, and the thread passing is to repair the threaded hole by a screw tap, so that the high-strength bolt can be smoothly screwed in;
(b) Selecting a high-strength bolt 6 according to the size of the screw hole of the disassembled pin shaft;
(c) Hoisting the shaft puller by using a hoisting device to ensure that the axis of the shaft puller is concentric with the pin shaft 1 to be disassembled;
(d) One end of a high-strength bolt 6 is connected with the pin shaft 1 to be disassembled through a central hole of the left connecting beam 4, and the other end of the high-strength bolt 6 is fixed on a right connecting beam 9 with the length of 80mm by two nuts and is screwed by a spanner;
(e) A protective cover 7 is fastened on the right connecting beam 9 with the thickness of 80mm, so that the high-strength bolt 6 is prevented from being broken and flying out to hurt people;
(f) Operating the three-position four-way reversing valve to feed liquid into the lower cavity of the pushing cylinder and return liquid to the upper cavity, so that the connecting seat with the thickness of 16mm is tightly attached to the side plane of the pin shaft 1 to be disassembled of the bracket;
(g) And after checking that each part has no problem, continuously supplying liquid, and tensioning the pin shaft 1 to be disassembled through the high-strength bolt 6 until the pin shaft is pulled out.
In the prior art, a shaft pulling device pulls a shaft by utilizing the retraction force of a hydraulic jack, only one jack is used, the cylinder diameter of the jack is 160mm, the pulling force can only reach 30 tons, and the shaft pulling device is large in size and weight. The utility model discloses a pull out axle ware is that the axle is pulled out to the extension force that utilizes hydraulic jack, because the jack stretches out the cavity area and withdraws the big twice of cavity area than, under the same condition of pump pressure, the pulling force is the big twice also to, through setting up the link two cylinder diameter 100mm pull out round pin jack 2 utilize thick 80 mm's iron plate to fix and use together, the pulling force reaches 50 tons, if the pulling force is not enough, can also bind 4 simultaneously and pull out round pin jack 2 and use simultaneously, the pulling force can reach 100 tons. In addition, the connecting mode with the pin shaft 1 to be disassembled is simple, accessories such as a connecting head and the like do not need to be machined, the structure is simple, the weight is light, the tension is large, the operation is convenient, and the labor and the time are saved when the pin shaft is pulled and disassembled; the high-strength bolt 6 is directly connected with a screw hole in the end face of the support pin shaft, pin shafts with various thread specifications can be directly pulled out by changing the size of the high-strength bolt 6, and the universal screw shaft has universality. The shaft pulling device is used for disassembling Zy9200/25.5/55 supports on a 3221s working surface in the underground, and the effect is very good. As can be seen from the reference of FIG. 2, the present embodiment is equipped with a movable hydraulic control system, which can realize remote operation and ensure safe use.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (5)
1. The utility model provides a large-scale hydraulic support in colliery is disassembled with pulling out axial organ, includes link, hydraulic jack (2) through the link setting, its characterized in that: the link be equipped with left tie-beam (4), right tie-beam (9), be equipped with 2 interval parallel arrangement's hydraulic jack (2) between left tie-beam (4), right tie-beam (9), be equipped with high strength bolt (6) between 2 hydraulic jack (2), the centre bore that left tie-beam (4) were worn out to the left end of high strength bolt (6) with wait to disassemble the round pin hub connection, the right-hand member of high strength bolt (6) is worn out the centre bore of right tie-beam (9) and is equipped with nut (8) in end department.
2. The shaft puller for disassembling the large-sized hydraulic support of the coal mine according to claim 1, wherein: the left end part and the right end part of the connecting frame are both provided with lifting rings (3), and the lifting rings (3) are connected with lifting ropes.
3. The shaft puller for disassembling the large hydraulic support in the coal mine according to claim 2, wherein: the left end portion is equipped with plays rings (3) and connects and set up on left tie-beam, play rings (3) that right end portion was equipped with set up on linking bridge, linking bridge and right tie-beam (9) are adjacent and parallel arrangement, linking bridge's both ends are connected with hydraulic jack (2) through clamp (5) respectively.
4. The shaft puller for disassembling the large hydraulic support in the coal mine according to claim 1, wherein: the right connecting beam (9) is connected with a protective cover (7), and the protective cover (7) is arranged at the joint of the right connecting beam (9) and the high-strength bolt (6).
5. The shaft puller for disassembling the large-sized hydraulic support of the coal mine according to claim 1, wherein: the center hole of the left connecting beam (4) is larger than the shaft diameter of the pin shaft (1) to be disassembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221466516.1U CN217620328U (en) | 2022-06-13 | 2022-06-13 | Shaft puller for disassembling large-scale hydraulic support in coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221466516.1U CN217620328U (en) | 2022-06-13 | 2022-06-13 | Shaft puller for disassembling large-scale hydraulic support in coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217620328U true CN217620328U (en) | 2022-10-21 |
Family
ID=83625002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221466516.1U Expired - Fee Related CN217620328U (en) | 2022-06-13 | 2022-06-13 | Shaft puller for disassembling large-scale hydraulic support in coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217620328U (en) |
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2022
- 2022-06-13 CN CN202221466516.1U patent/CN217620328U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221021 |