CN204321914U - Self-centering Hydraulic Clamping Mechanism - Google Patents
Self-centering Hydraulic Clamping Mechanism Download PDFInfo
- Publication number
- CN204321914U CN204321914U CN201420746523.6U CN201420746523U CN204321914U CN 204321914 U CN204321914 U CN 204321914U CN 201420746523 U CN201420746523 U CN 201420746523U CN 204321914 U CN204321914 U CN 204321914U
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- CN
- China
- Prior art keywords
- clamping cylinder
- support body
- self
- sliding block
- top shoe
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Abstract
The utility model relates to a kind of self-centering Hydraulic Clamping Mechanism, it comprises clamp system support body (1), described clamp system support body (1) top and bottom are respectively arranged with clamping cylinder (2) and lower clamping cylinder (3), described upper clamping cylinder (2) and lower clamping cylinder (3) positioned opposite, described upper clamping cylinder (2) is provided with top shoe (4), described lower clamping cylinder (3) is provided with sliding block (5), described top shoe (4) and sliding block (5) are provided with vee-block (10), rack-and-pinion lazy-tongs (6) are provided with between described top shoe (4) and sliding block (5).A kind of self-centering Hydraulic Clamping Mechanism of the utility model, its action is simple, centering accurately, substantially reduce stator case be threaded and screw thread disassembles the time, operating efficiency significantly improves.
Description
Technical field
The utility model relates to a kind of self-centering Hydraulic Clamping Mechanism, so disassemble with the screw thread that is threadedly connected to by exploitation stator housing of screw drill used, belongs to oil exploration equipment technical field.
Background technology
Oil exploitation drilling tool normally carries out high strength by upper and lower two joints by end internal and external threads and is formed by connecting, being threaded of such as helicoid hydraulic motor drill collar stator case.This be threaded and disassemble the very large moment of torsion of needs just can complete.Drill collar stator case particularly after oil field welldrilling, due to be connected very tight of screw thread and serious corrosion want to disassemble this screw thread and need larger to disassemble moment of torsion.
Because stator housing of screw drill outer wall is cylindrical surface, very large clamping force must be applied to outer wall and can resist so big high strength and be threaded or disassemble.The stator case more ripe on the market disassemblerassembler that is threaded clamps two stator case outer wall cylindrical surfaces respectively by two group oil cylinders, and often group by multiple (being generally 4 ~ 6) oil cylinder simultaneously and synchronously clamp respectively two stator cases.Wherein maintain static after one group of clamping, after another group clamping, its whole clamping system will do high pulling torque rotary motion to screw or disassemble housing connecting thread, because clamping cylinder is more, and clamping process is difficult to accomplish synchronously, so be difficult to realize multi-cylinder synchronous clamping and continuous large torque rotation.The disassemblerassembler of current China and foreign countries stator housing of screw drill, general is all utilize other two oil cylinders to apply high pulling torque discontinuity repeated rotation (clamping and rotation 10 ~ 14 oil cylinders), each action can only be rotated less than 35 ° of corners, and owing to rotating the change of the arm of force, rotating torque is also changed.And being threaded of general stator case also obtains tens buttons, so this equipment operating efficiency is very low.Two group oil cylinders (be fixedly clamped and clamp rotation) of this disassemblerassembler in addition, due to clamping cylinder more and not easily synchronous clamping so the serious decentraction of the centre of gyration, stator case is threaded and causes very large difficulty.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of self-centering Hydraulic Clamping Mechanism, and its action is simple, centering accurately, substantially reduce stator case be threaded and screw thread disassembles the time, operating efficiency significantly improves.
The purpose of this utility model is achieved in that a kind of self-centering Hydraulic Clamping Mechanism, it comprises clamp system support body, described clamp system support body top and bottom are respectively arranged with clamping cylinder and lower clamping cylinder, described upper clamping cylinder is identical with lower clamping cylinder push-pull effort and stroke, described upper clamping cylinder and lower clamping cylinder positioned opposite, described upper clamping cylinder is provided with top shoe, described lower clamping cylinder is provided with sliding block, described top shoe and sliding block are provided with vee-block, rack-and-pinion lazy-tongs are provided with between described top shoe and sliding block.
Described rack-and-pinion lazy-tongs comprise rack and pinion, described tooth bar is arranged at the clamp system support body left and right sides, described tooth bar bottom is fixedly connected with sliding block, described gear is arranged between tooth bar top and top shoe, described gear is arranged on clamp system support body by rotating shaft, and described gear is meshed with tooth bar and top shoe respectively.
Before and after described top shoe and sliding block, both sides vertically offer gathering sill, and before and after described clamp system support body, both sides are provided with feather key, and described gathering sill and feather key match.
Described clamp system support body side is provided with micro hydraulic station, and described upper clamping cylinder is connected with micro hydraulic station respectively with lower clamping cylinder.
Compared with prior art, the utility model has following beneficial effect:
1, this self-centering Hydraulic Clamping Mechanism is owing to adopting vee-block clamping, and contact point many clampings component is large, so clamping cylinder quantity few (only having two to be arranged symmetrically with), because the few arrangement space of clamping cylinder quantity is large, oil cylinder cylinder diameter also can strengthen;
2, this self-centering Hydraulic Clamping Mechanism realizes self-centering clamping by both sides rack-and-pinion, V-block and guiding mechanism etc.;
3, the action due to this self-centering Hydraulic Clamping Mechanism is simple, and accurately, so the time of disassembling with screw thread that is threaded of stator case shortens greatly, operating efficiency significantly improves in centering.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of self-centering Hydraulic Clamping Mechanism of the utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the working state schematic representation of a kind of self-centering Hydraulic Clamping Mechanism of the utility model.
Wherein:
Clamp system support body 1
Upper clamping cylinder 2
Lower clamping cylinder 3
Top shoe 4
Sliding block 5
Rack-and-pinion lazy-tongs 6
Tooth bar 6.1
Gear 6.2
Rotating shaft 6.3
Gathering sill 7
Micro hydraulic station (hydraulic pressure bag) 8
Feather key 9
Vee-block 10.
Detailed description of the invention
See Fig. 1 ~ Fig. 3, a kind of self-centering Hydraulic Clamping Mechanism of the utility model, it comprises clamp system support body 1, described clamp system support body 1 top and bottom are respectively arranged with clamping cylinder 2 and lower clamping cylinder 3, described upper clamping cylinder 2 and lower clamping cylinder 3 positioned opposite, described upper clamping cylinder 2 is provided with top shoe 4, described lower clamping cylinder 3 is provided with sliding block 5, described top shoe 4 and sliding block 5 are provided with vee-block 10, between described top shoe 4 and sliding block 5, are provided with rack-and-pinion lazy-tongs 6.
Described rack-and-pinion lazy-tongs 6 comprise tooth bar 6.1 and gear 6.2, described tooth bar 6.1 is arranged at clamp system support body 1 left and right sides, described tooth bar 6.1 bottom is fixedly connected with sliding block 5, described gear 6.2 is arranged between tooth bar 6.1 top and top shoe 4, described gear 6.2 is arranged on clamp system support body 1 by rotating shaft 6.3, described top shoe 4 left and right sides is provided with engaging tooth, and described gear 6.2 is meshed with tooth bar 6.1 and top shoe 4 respectively.
Before and after described top shoe 4 and sliding block 5, both sides vertically offer gathering sill 7, and before and after described clamp system support body 1, both sides are provided with feather key 9, and described gathering sill 7 and feather key 9 match.
Described clamp system support body 1 side is provided with micro hydraulic station 8, and described upper clamping cylinder 2 is connected with micro hydraulic station 8 respectively with lower clamping cylinder 3.
Claims (4)
1. a self-centering Hydraulic Clamping Mechanism, it is characterized in that: it comprises clamp system support body (1), described clamp system support body (1) top and bottom are respectively arranged with clamping cylinder (2) and lower clamping cylinder (3), described upper clamping cylinder (2) and lower clamping cylinder (3) positioned opposite, described upper clamping cylinder (2) is provided with top shoe (4), described lower clamping cylinder (3) is provided with sliding block (5), described top shoe (4) and sliding block (5) are provided with vee-block (10), rack-and-pinion lazy-tongs (6) are provided with between described top shoe (4) and sliding block (5).
2. a kind of self-centering Hydraulic Clamping Mechanism according to claim 1, it is characterized in that: described rack-and-pinion lazy-tongs (6) comprise tooth bar (6.1) and gear (6.2), described tooth bar (6.1) is arranged at clamp system support body (1) left and right sides, described tooth bar (6.1) bottom is fixedly connected with sliding block (5), described gear (6.2) is arranged between tooth bar (6.1) top and top shoe (4), described gear (6.2) is arranged on clamp system support body (1) by rotating shaft (6.3), described gear (6.2) is meshed with tooth bar (6.1) and top shoe (4) respectively.
3. a kind of self-centering Hydraulic Clamping Mechanism according to claim 1, it is characterized in that: described top shoe (4) and both sides, sliding block (5) front and back vertically offer gathering sill (7), before and after described clamp system support body (1), both sides are provided with feather key (9), and described gathering sill (7) and feather key (9) match.
4. a kind of self-centering Hydraulic Clamping Mechanism according to claim 1, it is characterized in that: described clamp system support body (1) side is provided with micro hydraulic station (8), and described upper clamping cylinder (2) is connected with micro hydraulic station (8) respectively with lower clamping cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420746523.6U CN204321914U (en) | 2014-12-03 | 2014-12-03 | Self-centering Hydraulic Clamping Mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420746523.6U CN204321914U (en) | 2014-12-03 | 2014-12-03 | Self-centering Hydraulic Clamping Mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204321914U true CN204321914U (en) | 2015-05-13 |
Family
ID=53158317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420746523.6U Expired - Fee Related CN204321914U (en) | 2014-12-03 | 2014-12-03 | Self-centering Hydraulic Clamping Mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204321914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440687A (en) * | 2014-12-03 | 2015-03-25 | 江阴东辰钻探设备有限公司 | Self-centering hydraulic clamping mechanism |
-
2014
- 2014-12-03 CN CN201420746523.6U patent/CN204321914U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440687A (en) * | 2014-12-03 | 2015-03-25 | 江阴东辰钻探设备有限公司 | Self-centering hydraulic clamping mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20161203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |