CN201934038U - Symmetrical type drilling rod clamping mechanism - Google Patents
Symmetrical type drilling rod clamping mechanism Download PDFInfo
- Publication number
- CN201934038U CN201934038U CN2010206926970U CN201020692697U CN201934038U CN 201934038 U CN201934038 U CN 201934038U CN 2010206926970 U CN2010206926970 U CN 2010206926970U CN 201020692697 U CN201020692697 U CN 201020692697U CN 201934038 U CN201934038 U CN 201934038U
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- drilling rod
- spring
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- cylinder body
- outer cylinder
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Abstract
The utility model provides a symmetrical type drilling rod clamping mechanism which comprises blocking tiles (1), blocking tile seats (2), loose springs (3), top covers (4), pistons (5), clamping springs (6), end covers (7), external cylinder bodies (8), connecting discs (9) and a connecting shell (10), wherein the blocking tiles (1) are fixed on the blocking tile seats (2); a clamping hole (11) used for clamping a drilling rod is formed in the center of the blocking tiles (1); the loose springs (3) are clamped between the two blocking tile seats (2); the other ends of the blocking tile seats (2) are contacted with one ends of the pistons (5) by the top covers (4); the other ends of the pistons (5) lean against the clamping springs (6) which are arranged on the end covers (7) of the external cylinder bodies (8) in a leaning way; opening cavities (a) are formed between the connecting discs (9) and the pistons (5); and the blocking tiles (1), the blocking tile seats (2), the loose springs (3), the top covers (4), the pistons (5), the clamping springs (6) and the end covers (7) are installed in the external cylinder bodies (8), the connecting discs (9) and the connecting shell (10), and are respectively arranged in a symmetrical way by taking the clamping hole (11) as a centre line. The symmetrical type drilling rod clamping mechanism is good in symmetry, longer in stroke and rapider in action.
Description
Technical field
The utility model relates to a kind of mineral products machinery, more specifically, relates to the symmetrical expression drilling rod clamping device of a kind of mineral products with borer drill rod.
Background technology
All use rig in the mineral products operation, for example need in the tunnel, carry out bore operation in the Coal Production because need to drilling rod fall bar, adorn bar and unload the bar operation, therefore need the drilling rod clamping device to clamp drilling rod, to finish above action.The present drilling rod clamping device that uses, the wedge shape clamping device that adopts asymmetric oil cylinder to combine with spring for example, Figure 1 shows that the disclosed drilling rod clamping device of CN 201474634U, wherein, 9 is clamper, and 6 is tube connector, and 7 is slip spider, 8 is slips, and 10 is collar, and 11 is piston, 12 is sealing ring, and 13 is shell, and 15 is protective cover, 16 is seal cover, and 17 is fairlead, and 18 is pressure oil pipe, 20 is spring, and 21 is locknut, and 23 is pressing plate.The connection of each parts of drilling rod clamping device shown in Figure 1 and position relation and the course of work are: 6 fixations of tube connector, one end is fixedlyed connected with transmission case, the other end is fixing by locknut 21, and locknut 21 usefulness bolts and shell 13 are fixing, thus fixing described clamper 9.Be formed with oil pocket 14 between shell 13 and the piston 11, oil pocket 14 cut-in pressure oil pipes 18, pressure oil pipe 18 connects oil hydraulic system, is provided with sealing ring 12 between housing 13 and piston 11.Piston 11 is sleeved on the collar 10, when it moves inward, can promote collar 10 and move to same direction.Collar 10 is sleeved on the slip spider 7 movably, has pressing plate groove 24 on it, and the groove face of pressing plate groove 24 is inclined-plane (being wedge structure), and pressing plate 23 is installed in pressing plate groove 24 movably, and pressing plate 23 can be done oblique movement along the groove face of pressing plate groove 24.On pressing plate 23, be fixed with slips 8 with sunk screw.Slips 8 is installed on the slip spider 7.Slip spider 7 is sleeved on the drilling rod 4, its be fix and do not contact with drilling rod 4.Spring 20 is sleeved on the slip spider 7, cooperates with collar 10.Protective cover 15 is screwed on shell 13 after being inserted in slip spider 7.Fairlead 17 is inserted in protective cover 15 back sealings, and fairlead 17, protective cover 15 are fixed by bolts on the slip spider 7.During use, as long as start oil hydraulic system, pressure oil is with regard to injection pressure oil pipe 18, and the back forms hydraulic pressure in oil pocket 14, be subjected to hydraulic action, and piston 11 promotes collar 10, and collar 10 promotes slips 8, and slips 8 clamps drilling rod 4; When closing oil hydraulic system, at the effect lower slips 8 of spring 20 drilling rod 4 is unclamped and to reset.
There are a lot of defectives in above-mentioned existing drilling rod clamping device, and wherein wedge shape clamping mechanism action is slow, stroke is less; The clamping device that asymmetric oil cylinder combines with spring, can not guarantee the slips opening to neutrality.
The utility model content
Drilling rod clamping device slow movement in the above-mentioned prior art problem, stroke are less in order to solve, during clamping to technical problem such as neutrality is bad or one of at least, the utility model provides a kind of symmetrical expression drilling rod clamping device, can effectively overcome the above-mentioned defective of prior art.
The technical solution that the utility model provides is: a kind of symmetrical expression drilling rod clamping device, it is characterized in that, comprise slips 1, slip spider 2, spring 3 gets loose, top cover 4, piston 5, garter spring 6, end cap 7, outer cylinder body 8, terminal pad 9 be connected shell 10, described slips 1 is fixed on the described slip spider 2, described slips 1 is installed in described the connection in the housing 10 with described slip spider 2, be formed centrally the clamping hole 11 of clamping drilling rod in the described slips 1, the described spring 3 that gets loose is clipped between two described slip spiders 2, the other end of described slip spider 2 is by described top cover 4 and described piston 5 one end in contact, the other end of described piston 5 is against described garter spring 6, described garter spring 6 is on the described end cap 7 that is installed on the described outer cylinder body 8, described garter spring 6 and described piston 5 are installed in the described outer cylinder body 8, described terminal pad 9 is installed between described outer cylinder body 8 and the described connection housing 10, be formed with between described terminal pad 9 and the described piston 5 and open chamber a, described slips 1, slip spider 2, spring 3 gets loose, top cover 4, piston 5, garter spring 6, end cap 7, outer cylinder body 8, terminal pad 9 and unlatching chamber a all are symmetrical arranged with the center line of described clamping hole 11.
Preferably, described slips 1, slip spider 2, top cover 4, piston 5, garter spring 6, end cap 7, outer cylinder body 8, terminal pad 9 and open chamber a and all be symmetrical set with the center line of described clamping hole 11, the described spring 3 that gets loose is symmetrical arranged up and down with the center line of described clamping hole 11.
Further, auxiliary chucking chamber b is arranged between described piston 5 and described outer cylinder body 8, described auxiliary chucking chamber b is symmetrical set with the center line of described clamping hole (11), and its direction to described piston 5 active forces gives the direction of described piston 5 active forces identical with described garter spring after feeding pressure oil.
Form pipeline 91 in described terminal pad 9 inside, described unlatching chamber a is communicated with described pipeline 91, and feeds pressure oil by described pipeline 91.
Preferably, described garter spring 6 is the dish spring, and the described spring 3 that gets loose is the compression spring.
Between described piston 5 and described outer cylinder body 8 and the described terminal pad 9, described outer cylinder body 8 and and described terminal pad 9 between, be provided with sealing ring 12.
The above-mentioned symmetrical expression drilling rod clamping device that provides according to the utility model, because of adopting the symmetrical expression setting, good during to the drilling rod clamping to neutrality, thus to the drilling rod chucking power be evenly distributed, stable; And because of not adopting traditional wedge structure, but adopt garter spring to add the mode that starts the chamber, make to tighten and get loose and be swift in motion, having improved work renders a service, and the slip travel of chucking is bigger, thereby make clamping device of the present utility model have bigger applicability, be applicable to the drilling rod of plurality of specifications.
Description of drawings
The wedge shape clamping structural scheme of mechanism that Fig. 1 combines with spring for asymmetric oil cylinder of the prior art;
The generalized section of Fig. 2 symmetrical expression drilling rod described in the utility model clamping device one embodiment.
The specific embodiment
Below in conjunction with description of drawings according to the specific embodiment of the present utility model.
A lot of details have been set forth in the following description so that fully understand the utility model, but, the utility model can also adopt other to be different from other modes described here and implement, and therefore, the utility model is not limited to the restriction of following public specific embodiment.
Fig. 2 shows the cross-section structure according to a kind of embodiment of symmetrical expression drilling rod clamping device of the present utility model.As shown in Figure 2, a kind of symmetrical expression drilling rod clamping device of the present utility model, comprise slips 1, slip spider 2, spring 3 gets loose, top cover 4, piston 5, garter spring 6, end cap 7, outer cylinder body 8, terminal pad 9 be connected shell 10, described slips 1 is fixed on the described slip spider 2, described slips 1 is installed in described the connection in the housing 10 with described slip spider 2, be formed centrally the clamping hole 11 of clamping drilling rod in the described slips 1, the described spring 3 that gets loose is clipped between two described slip spiders 2, the other end of described slip spider 2 is by the end in contact of described top cover 4 with described piston 5, the other end of described piston 5 is on described garter spring 6, described garter spring 6 is on the described end cap 7 that is installed on the described outer cylinder body 8, described garter spring 6 and described piston 5 are installed in the described outer cylinder body 8, described terminal pad 9 is installed between described outer cylinder body 8 and the described connection housing 10, be formed with between described terminal pad 9 and the described piston 5 and open chamber a, described slips 1, slip spider 2, spring 3 gets loose, top cover 4, piston 5, garter spring 6, end cap 7, outer cylinder body 8, terminal pad 9 and unlatching chamber a all are symmetrical arranged with the center line of described clamping hole 11.
Preferably, described slips 1, slip spider 2, top cover 4, piston 5, garter spring 6, end cap 7, outer cylinder body 8, terminal pad 9 and open chamber a and all be symmetrical set with the center line of described clamping hole 11, the described spring 3 that gets loose is symmetrical arranged up and down with the center line of described clamping hole 11.This symmetrical expression setting makes slips 1 effect be evenly distributed for the chucking power of drilling rod and stable, thereby good to neutrality; There is the garter spring of employing 6 to realize that chucking, employing get loose in conjunction with realizing with the pressure oil and the spring 3 that gets loose in opening chamber a, avoided adopting traditional wedge structure, thereby the chucking and the stroke that gets loose is bigger, the action rapider, especially the utility model is realized getting loose after adopting and adding pressure oil, makes that the chucking action is more guaranteed, more reliable.
Further, between described piston 5 and described outer cylinder body 8, also form auxiliary chucking chamber b, described auxiliary chucking chamber b is symmetrical set with the center line of described clamping hole 11, and its direction to described piston 5 active forces gives the direction of described piston 5 active forces identical with described garter spring after feeding pressure oil.This structure can increase clamping force, is convenient to drilling rod and unloads bar from boring.
Form pipeline 91 in described terminal pad 9 inside, described unlatching chamber a is communicated with described pipeline 91, and feeds pressure oil by described pipeline 91.This structure has made full use of terminal pad 9, compact conformation.
Preferably, described garter spring 6 is the dish spring, and the described spring 3 that gets loose is the compression spring.Like this, the elastic force of realizing garter spring 6 easily is greater than the elastic force of spring 3 that gets loose, and is convenient to install, and also can improve the life-span.
Between described piston 5 and described outer cylinder body 8 and the described terminal pad 9, between described outer cylinder body 8 and the described terminal pad 9, be provided with sealing ring 12.To prevent the leakage of pressure oil.
The course of work of present embodiment is: clamping device is before injection pressure oil, slips 1 is in gripping orientation under the effect of garter spring 6, behind injection pressure oil in the unlatching chamber a, along with the increase of opening pressure in the chamber, promote piston 5 and outwards move compression garter spring 6, garter spring 6 storage power; At this moment, the spring 3 that gets loose that is in compressive state releases energy, and promotes slip spider 2 and top cover 4 and outwards moves, and outwards moves thereby drive slips 1, and slips 1 opens, and unclamps drilling rod, and drilling rod can rotate freely in clamping device or translation.When discharging unlatching chamber a internal pressure oil, garter spring 6 releases energy and promotes piston 5 and move inward, and then promote top cover 4, slip spider 3 moves inward, driving slips 1 tightens up, slips 1 chucking drilling rod remains static the relative clamping device of drilling rod, i.e. clamped condition, in this process, the spring 3 that gets loose is compressed and storage power.When unloading drilling rod and need bigger chucking power, can tighten injection pressure oil in the b of chamber to assisting, making piston 5 be subjected to bigger is inside power to slip spider 2 directions, thereby the tightening force that imposes on slips 1 is bigger, the clamping force of this moment is the elastic force of garter spring 6 and making a concerted effort of the hydraulic coupling in the auxiliary chucking chamber b, can more reliable chucking drilling rod.
The drilling rod clamping body that present embodiment is above-mentioned, because slips 1, slip spider 2, top cover 4, piston 5, garter spring 6, end cap 7, outer cylinder body 8, terminal pad 9 and unlatching chamber a all are symmetrical set with the center line of clamping hole 11, thereby the chucking power that imposes on drilling rod is good to neutrality, and the chucking power of all directions evenly distributes; Adopt the chucking mode of garter spring 6 and auxiliary chucking chamber b again, and adopt and open the hydraulic pressure in a of chamber and the spring 3 that gets loose and combine and get loose, thereby the action that makes the stroke of slips 1 bigger, tightens and get loose is faster, operating efficiency is higher.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. symmetrical expression drilling rod clamping device, it is characterized in that, comprise slips (1), slip spider (2), spring (3) gets loose, top cover (4), piston (5), garter spring (6), end cap (7), outer cylinder body (8), terminal pad (9) be connected shell (10), described slips (1) is fixed on the described slip spider (2), described slips (1) is installed in described the connection in the housing (10) with described slip spider (2), be formed centrally the clamping hole (11) of clamping drilling rod in the described slips (1), the described spring that gets loose (3) is clipped between two described slip spiders (2), the other end of described slip spider (2) is by the end in contact of described top cover (4) with described piston (5), the other end of described piston (5) is against described garter spring (6), described garter spring (6) is on the described end cap (7) that is installed on the described outer cylinder body (8), described garter spring (6) and described piston (5) are installed in the described outer cylinder body (8), described terminal pad (9) is installed between described outer cylinder body (8) and the described connection housing (10), be formed with between described terminal pad (9) and the described piston (5) and open chamber (a), described slips (1), slip spider (2), spring (3) gets loose, top cover (4), piston (5), garter spring (6), end cap (7), outer cylinder body (8), terminal pad (9) and unlatching chamber (a) all are symmetrical arranged with the center line of described clamping hole (11).
2. symmetrical expression drilling rod clamping device according to claim 1, it is characterized in that, described slips (1), slip spider (2), top cover (4), piston (5), garter spring (6), end cap (7), outer cylinder body (8), terminal pad (9) and unlatching chamber (a) all are symmetrical set with the center line of described clamping hole (11), and the described spring that gets loose (3) is symmetrical arranged up and down with the center line of described clamping hole (11).
3. symmetrical expression drilling rod clamping device according to claim 2, it is characterized in that, auxiliary chucking chamber (b) is arranged between described piston (5) and described outer cylinder body (8), described auxiliary chucking chamber (b) is symmetrical set with the center line of described clamping hole (11), and its direction to described piston (5) active force gives the direction of described piston (5) active force identical with described garter spring after feeding pressure oil.
4. symmetrical expression drilling rod clamping device according to claim 3 is characterized in that, forms pipeline (91) in described terminal pad (9) inside, described unlatching chamber (a) and described pipeline (91) UNICOM, and by described pipeline (91) feeding pressure oil.
5. according to the arbitrary described symmetrical expression drilling rod clamping device of claim 1 to 4, it is characterized in that described garter spring (6) is the dish spring, the described spring that gets loose (3) is the compression spring.
6. symmetrical expression drilling rod clamping device according to claim 5 is characterized in that, between described piston (5) and described outer cylinder body (8) and the described terminal pad (9), between described outer cylinder body (8) and the described terminal pad (9), be provided with sealing ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206926970U CN201934038U (en) | 2010-12-22 | 2010-12-22 | Symmetrical type drilling rod clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206926970U CN201934038U (en) | 2010-12-22 | 2010-12-22 | Symmetrical type drilling rod clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934038U true CN201934038U (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206926970U Expired - Fee Related CN201934038U (en) | 2010-12-22 | 2010-12-22 | Symmetrical type drilling rod clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934038U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763354A (en) * | 2015-03-24 | 2015-07-08 | 淮南矿业(集团)有限责任公司 | Hole sealing pipe clamping device |
| CN106869855A (en) * | 2017-04-25 | 2017-06-20 | 中煤科工集团重庆研究院有限公司 | One kind automatically prevents gas exceeding limit device |
| CN107083936A (en) * | 2017-04-25 | 2017-08-22 | 中煤科工集团重庆研究院有限公司 | Automatically reset hole packer |
| CN107420051A (en) * | 2017-05-08 | 2017-12-01 | 中煤科工集团重庆研究院有限公司 | Automatic floating centering hydraulic gripper |
| CN112901087A (en) * | 2021-01-28 | 2021-06-04 | 李宛芸 | Petroleum drill pipe |
| CN116877046A (en) * | 2023-08-21 | 2023-10-13 | 石家庄博安煤矿机械制造有限公司 | Drill rod holder with fault detection function and fault detection method |
-
2010
- 2010-12-22 CN CN2010206926970U patent/CN201934038U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763354A (en) * | 2015-03-24 | 2015-07-08 | 淮南矿业(集团)有限责任公司 | Hole sealing pipe clamping device |
| CN106869855A (en) * | 2017-04-25 | 2017-06-20 | 中煤科工集团重庆研究院有限公司 | One kind automatically prevents gas exceeding limit device |
| CN107083936A (en) * | 2017-04-25 | 2017-08-22 | 中煤科工集团重庆研究院有限公司 | Automatically reset hole packer |
| CN107420051A (en) * | 2017-05-08 | 2017-12-01 | 中煤科工集团重庆研究院有限公司 | Automatic floating centering hydraulic gripper |
| CN112901087A (en) * | 2021-01-28 | 2021-06-04 | 李宛芸 | Petroleum drill pipe |
| CN112901087B (en) * | 2021-01-28 | 2023-08-25 | 延长永通石油技术服务有限责任公司 | Petroleum drill pipe |
| CN116877046A (en) * | 2023-08-21 | 2023-10-13 | 石家庄博安煤矿机械制造有限公司 | Drill rod holder with fault detection function and fault detection method |
| CN116877046B (en) * | 2023-08-21 | 2024-03-05 | 石家庄博安煤矿机械制造有限公司 | Drill rod holder with fault detection function and fault detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 050035 Xiangjiang Road, Shijiazhuang high tech Zone, Hebei, No. 418 Patentee after: JIKAI EQUIPMENT MANUFACTURING CO., LTD. Address before: 050035 No. 89, the Yellow River Avenue, hi tech Zone, Hebei, Shijiazhuang Patentee before: Shijiazhuang Zhongmei Coal Mine Equipment Manufacture Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160613 Address after: 050035 room, room, room 418, No. 409, Xiangjiang Road, hi tech Zone, Shijiazhuang, Hebei, China, 408 Patentee after: Hebei Mechanical & Electrical Technology Co., Ltd. Address before: 050035 Xiangjiang Road, Shijiazhuang high tech Zone, Hebei, No. 418 Patentee before: JIKAI EQUIPMENT MANUFACTURING CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160921 Address after: 050035 Xiangjiang Road, Shijiazhuang high tech Zone, Hebei, No. 418 Patentee after: JIKAI EQUIPMENT MANUFACTURING CO., LTD. Address before: 050035 room, room, room 418, No. 409, Xiangjiang Road, hi tech Zone, Shijiazhuang, Hebei, China, 408 Patentee before: Hebei Mechanical & Electrical Technology Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170220 Address after: Room 408, room 409, room 418, Xiangjiang Road, Shijiazhuang hi tech Zone, Hebei, 050035, China Patentee after: Hebei Mechanical & Electrical Technology Co., Ltd. Address before: 050035 Xiangjiang Road, Shijiazhuang high tech Zone, Hebei, No. 418 Patentee before: JIKAI EQUIPMENT MANUFACTURING CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20171222 |