CN210768853U - Guide sleeve used on hydraulic support stand column for coal mine - Google Patents
Guide sleeve used on hydraulic support stand column for coal mine Download PDFInfo
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- CN210768853U CN210768853U CN201920611200.9U CN201920611200U CN210768853U CN 210768853 U CN210768853 U CN 210768853U CN 201920611200 U CN201920611200 U CN 201920611200U CN 210768853 U CN210768853 U CN 210768853U
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- cylinder body
- guide sleeve
- hydraulic support
- gland
- coal mine
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Abstract
The utility model provides a uide bushing that uses on hydraulic support stand for coal mine belongs to hydraulic support stand uide bushing technical field, including outer cylinder body, well cylinder body and columella, the inside embedding of outer cylinder body is provided with well cylinder body, and the inside embedding of well cylinder body is provided with the columella, and all the embedding is provided with the uide bushing between the right side of outer cylinder body and well cylinder body and columella, and the right side of uide bushing is fixed and is provided with the gland. The device is through being provided with the gland, is provided with the gland through the right side at the uide bushing, is provided with the external screw thread on the gland, and is provided with second guide ring and dustproof sealing ring in the inside embedding of gland, reaches direction and dirt-proof effect respectively, and only need take out or pack into the gland rotation from the cylinder body when the dismouting for the uide bushing need not rotate when installation and dismantlement, makes the uide bushing static seal face can not be impaired because of the rotation.
Description
Technical Field
The utility model relates to a hydraulic support stand uide bushing technical field specifically is a uide bushing that uses on hydraulic support stand for coal mine.
Background
In the coal mine well worker field, the stand is the most important component in the hydraulic support, be used for bearing the roof load and adjust the support height, the stand mainly includes the cylinder body, the post that lives, uide bushing and sealing member, its main maintenance work is when the sealing member damages, change the sealing member or repair the cylinder body when the cylinder body corrodes, current hydraulic support stand screw thread uide bushing leads to very easily with cylinder and uide bushing static seal fitting surface fish tail, even damage the static seal because the sealed face rotates along with the screw thread face when the dismouting, thereby play sealed effect or make sealing performance decline, reduce product reliability.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that above-mentioned background art exists, provide a uide bushing that uses on the hydraulic support stand for the colliery.
In order to achieve the purpose, the utility model provides a following technical scheme, a uide bushing that uses on hydraulic support stand for coal mine, including outer cylinder body, well cylinder body and pillar, the inside embedding of outer cylinder body is provided with well cylinder body, the inside embedding of well cylinder body is provided with the pillar, between outer cylinder body and the well cylinder body all the embedding is provided with the uide bushing between well cylinder body and the pillar, the fixed gland that is provided with in right side of uide bushing.
Furthermore, the two guide sleeves are different in size and are respectively embedded into the inner portion of the outer cylinder body and the inner portion of the middle cylinder body, the two guide sleeves comprise first inner guide rings, piston rod seal rings and guide sleeve static seal rings, and the two first inner guide rings are respectively arranged on the left side and the right side of the inner surface of each guide sleeve.
Further, the piston rod sealing ring is arranged between the two first inner guide rings.
Further, the guide sleeve static sealing ring is arranged on the outer side surface of the guide sleeve.
Furthermore, the number of the pressing covers is two, the pressing covers are respectively sleeved on the outer side surface of the middle cylinder body and the outer side surface of the small column, and a second inner guide ring is embedded in the center of the inside of the pressing cover.
Furthermore, the outside surfaces of the two pressing covers are fixedly provided with external threads, and the two external threads are respectively matched and connected with the internal threads on the inner surface of the outer cylinder body and the internal threads on the inner surface of the middle cylinder body.
Furthermore, bolt holes are formed in the four directions of the right side of the gland, and the bolt holes are connected with counter bores in the right side surface of the outer cylinder body or the middle cylinder body through inner hexagon screws.
Further, the right side of the external thread on the gland is sleeved with an external dustproof O ring.
Furthermore, the inner side of the right end face of the gland is sleeved with an inner dustproof sealing ring, so that the gland can achieve a dustproof effect.
Has the advantages that:
(1) the device is through being provided with the gland, is provided with the gland through the right side at the uide bushing, is provided with the screw thread on the gland, and is provided with second guide ring and dustproof sealing ring in the inside embedding of gland, reaches direction and dirt-proof effect respectively, and only need take out or pack into the gland rotation from the cylinder body when the dismouting for the uide bushing need not rotate when installation and dismantlement, makes the uide bushing static seal face can not be impaired because of the rotation.
(2) The device is provided with the guide sleeve, the surface of the inner edge of the guide sleeve is provided with the piston rod sealing ring and the second guide ring, and the surface of the outer side of the guide sleeve is provided with the static sealing ring, so that the guide sleeve plays a role in sealing and guiding.
(3) The device is provided with dustproof sealing ring through being provided with, is provided with dustproof sealing ring inside the right-hand member face of gland and external screw thread right side, can effectually prevent that the dust from getting into in the cylinder.
Drawings
Fig. 1 is a schematic sectional view of the overall structure of the present invention.
Fig. 2 is an enlarged schematic structural diagram of fig. 1A of the present invention.
Fig. 3 is a schematic view of the gland structure of the present invention.
In FIGS. 1-3: 1-outer cylinder body, 2-middle cylinder body, 3-small column, 4-guide sleeve, 5-gland, 501-external thread, 502-bolt hole, 503-dustproof O ring, 504-dustproof sealing ring, 6-first inner guide ring, 7-piston rod sealing ring, 8-guide sleeve static sealing ring, 9-second inner guide ring and 10-inner hexagon screw.
Detailed Description
Example (b):
referring to fig. 1 to 3, in an embodiment of the present invention, a guide sleeve used on a hydraulic support column for a coal mine includes an outer cylinder body 1, a middle cylinder body 2 and a small column 3, the middle cylinder body 2 is embedded in the outer cylinder body 1, the small column 3 is embedded in the middle cylinder body 2, guide sleeves 4 are embedded between the outer cylinder body 1 and the middle cylinder body 2 and between the middle cylinder body 2 and the right side of the small column 3, and a gland 5 is fixedly disposed on the right side of the guide sleeve 4;
furthermore, the two guide sleeves 4 are different in size and are respectively embedded into the outer cylinder body 1 and the middle cylinder body 2, the guide sleeves 4 comprise first inner guide rings 6, piston rod seal rings 7 and guide sleeve static seal rings 8, and the two first inner guide rings 6 are respectively arranged on the left side and the right side of the inner surface of each guide sleeve 4.
Further, a piston rod sealing ring 7 is arranged between the two first inner guide rings 6, so that the inner part of the guide sleeve 4 and the outer surface of the middle cylinder body 2 and the outer surface of the small column 3 achieve a sealing effect.
Further, the guide sleeve static sealing ring 8 is arranged on the outer side surface of the guide sleeve 4, so that the guide sleeve 4 can achieve a sealing effect with the inner side surface of the middle cylinder body 2 and the inner side surface of the outer cylinder body 1.
Furthermore, two pressing covers 5 are arranged and are respectively sleeved on the outer side surface of the middle cylinder body 2 and the outer side surface of the small column 3, and a second inner guide ring 9 is embedded in the center of the inside of each pressing cover 5, so that the pressing covers 5 can achieve the guiding effect.
Further, the outside surface of two glands 5 all fixes and is provided with external screw thread 501, and two external screw threads 501 are connected with the internal thread fit of the internal surface of external cylinder body 1 and the internal surface of well cylinder body 2 respectively, through threaded connection in the internal surface of external cylinder body 1 and the internal surface of well cylinder body 2 for easy to assemble and dismantlement.
Further, four directions on the right side of gland 5 all are provided with bolt hole 502, and are connected through hexagon socket head cap screw 10 and the right side surface of outer cylinder body 1 and well cylinder body 2 in the bolt hole 502, and fixed make gland 5 be fixed in outer cylinder body 1 and well cylinder body 2 through hexagon socket head cap screw 10 on, difficult rotation drops.
Further, the right side of the external thread 501 on the gland 5 is sleeved with a dustproof sealing ring 503, and the dustproof sealing ring 503 is arranged to enable the gland 5 to achieve a dustproof effect.
Further, an inner dustproof sealing ring 504 is sleeved on the inner side of the right end face of the gland 5, so that the gland 5 can achieve a dustproof effect.
Use the utility model relates to a during uide bushing that uses on hydraulic support stand for coal mine, at first install the device, through cup joint two uide bushings 4 respectively in the right side of columella 3 and the right side of well cylinder body 2, be provided with gland 5 through the right side bolt at uide bushing 4, external screw 501 and the inboard of outer cylinder body 1 and the inboard of interior cylinder body 2 in the outside through gland 5, then reuse hexagon socket head cap screw 10 is fixed gland 5, make in 4 crowding the device of uide bushing, can not make gland 5 and uide bushing 4 rotate together during the dismantlement, only need can take out gland 5 rotation, because two uide bushings 4 cup joint in the right side of columella 3 and the right side of well cylinder body 2, make things convenient for taking out of uide bushing 4, make the uide bushing static seal circle 8 of uide bushing 4 top can not lead to wearing and tearing because of the rotation when dismantling, broken ring leakproofness.
Claims (8)
1. The utility model provides a uide bushing that uses on hydraulic support stand for coal mine, including outer cylinder body (1), well cylinder body (2) and pillar (3), its characterized in that: the inner embedding of the outer cylinder body (1) is provided with a middle cylinder body (2), the inner embedding of the middle cylinder body (2) is provided with a small column (3), a guide sleeve (4) is embedded between the outer cylinder body (1) and the right side of the middle cylinder body (2) and the right side of the small column (3), and a gland (5) is fixedly arranged on the right side of the guide sleeve (4).
2. The guide sleeve used on the coal mine hydraulic support upright post is characterized in that: the two guide sleeves (4) are different in size and are respectively embedded into the inner portion of the outer cylinder body (1) and the inner portion of the middle cylinder body (2), the guide sleeves (4) comprise first inner guide rings (6), piston rod seal rings (7) and guide sleeve static seal rings (8), and the two inner guide rings (6) are respectively arranged on the left side and the right side of the inner surface of each guide sleeve (4).
3. The guide sleeve used on the coal mine hydraulic support upright post is characterized in that: the piston rod sealing ring (7) is arranged between the two first inner guide rings (6).
4. The guide sleeve used on the coal mine hydraulic support upright post is characterized in that: the guide sleeve static sealing ring (8) is arranged on the outer side surface of the guide sleeve (4).
5. The guide sleeve used on the coal mine hydraulic support upright post is characterized in that: the two pressing covers (5) are respectively sleeved on the outer side surface of the middle cylinder body (2) and the outer side surface of the small column (3), and a second inner guide ring (9) is embedded in the center of the inside of each pressing cover (5).
6. The guide sleeve used on the coal mine hydraulic support upright post is characterized in that: the outer side surfaces of the two pressing covers (5) are fixedly provided with external threads (501), and the two external threads (501) are respectively connected with the internal surface of the outer cylinder body (1) and the internal threads of the internal surface of the middle cylinder body (2) in a matched mode.
7. The guide sleeve used on the coal mine hydraulic support upright post is characterized in that: bolt holes (502) are formed in the four directions of the right side of the gland (5), and the bolt holes (502) are connected with counter bores in the right side surfaces of the outer cylinder body (1) and the middle cylinder body (2) through inner hexagon screws (10).
8. The guide sleeve used on the coal mine hydraulic support upright post is characterized in that: and a dustproof sealing ring (503) is sleeved on the right side of the external thread (501) on the gland (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920611200.9U CN210768853U (en) | 2019-04-30 | 2019-04-30 | Guide sleeve used on hydraulic support stand column for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920611200.9U CN210768853U (en) | 2019-04-30 | 2019-04-30 | Guide sleeve used on hydraulic support stand column for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210768853U true CN210768853U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920611200.9U Active CN210768853U (en) | 2019-04-30 | 2019-04-30 | Guide sleeve used on hydraulic support stand column for coal mine |
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| Country | Link |
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| CN (1) | CN210768853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163145A (en) * | 2022-09-05 | 2022-10-11 | 河南省豫煤矿机有限公司 | Double-telescopic upright post for hydraulic support of high-speed coal mine |
-
2019
- 2019-04-30 CN CN201920611200.9U patent/CN210768853U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163145A (en) * | 2022-09-05 | 2022-10-11 | 河南省豫煤矿机有限公司 | Double-telescopic upright post for hydraulic support of high-speed coal mine |
| CN115163145B (en) * | 2022-09-05 | 2022-11-18 | 河南省豫煤矿机有限公司 | Double-telescopic upright post for hydraulic support of high-speed coal mine |
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