CN209603899U - Clamp the swingable formula clamping clip of tooth - Google Patents
Clamp the swingable formula clamping clip of tooth Download PDFInfo
- Publication number
- CN209603899U CN209603899U CN201822188477.3U CN201822188477U CN209603899U CN 209603899 U CN209603899 U CN 209603899U CN 201822188477 U CN201822188477 U CN 201822188477U CN 209603899 U CN209603899 U CN 209603899U
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- CN
- China
- Prior art keywords
- tooth
- pincers
- drilling tool
- arm frame
- clamping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model discloses a kind of swingable formula clamping clips of pincers tooth, it includes combination fluid cylinder, left arm frame and right arm frame, left arm frame and right arm frame front end are equipped with pincers tooth retainer assembly, two groups of pliers tooth bases and pincers tooth are respectively installed in pincers tooth retainer assembly, pliers tooth base is triangular prism shape structure, the tail portion of its triangle is hinged in pincers tooth retainer assembly by pin shaft, pin shaft and the roller on tube drawbench lift arm in roller pincers are coaxial, concentric with the drilling tool for guaranteeing tight with roller clamp after pincers tooth clamps drilling tool；The groove of mounting clamp tooth is provided on pliers tooth base front end face, it is arc-shaped for clamping the gripper edge of tooth.The utility model is when in use, four groups of pincers dental assemblies that drilling tool is clamped pincers surround, clamping tooth can be as pin shaft be swung under clamping force and the collective effect of drilling tool, when the distance between the rotation center and drilling tool center for clamping tooth is minimum, four pincers teeth stop swinging under clamping force effect, by four point positioning, the clamping of drilling tool is realized.
Description
Technical field
The utility model relates to oil drilling and extracting equipment technical field, specifically a kind of swingable formula clamping clip of pincers tooth.
Background technique
The collet of oil drilling tube drawbench lift arm is mainly made of three classes pincers, respectively safety tongs, roller pincers and folder
Clencher, three groups of binding clips generally use combination fluid cylinder, are driven by link mechanism.Safety tongs prevents it for protecting drilling tool
Topple over.Centering of the roller pincers for drilling tool positions, and when grabbing drilling tool, passes through the roller and drilling tool of four rotations in same plane
It is circumscribed to be located.Clamping clip is the core component in lift arm binding clip, for clamping drilling tool, carries the weight of all drilling tools
Amount.
Situ of drilling well, drilling tool thribble are fitly emitted in fingerboard, but each thribble discharges position in fingerboard card slot
It is uncertain for setting.Lift arm must first go through roller pincers and position drilling tool when grabbing drilling tool, clamping clip clamps drilling tool again.Due to
Roller pincers by roller periphery with drilling tool is circumscribed is located, clamping clip is pressed from both sides by pincers tooth arc surface with drilling tool inscribe
Tightly, two groups of binding clips clamp drilling tools principle it is different, the center of drilling tool is inconsistent after causing binding clip to clamp drilling tool, generates certain inclined
The heart, if eccentric size is too big, will lead to clamping clip cannot clamp drilling tool, and in work, drilling tool the perils such as slides from binding clip.
The pliers tooth base majority of existing clamping clip is set as kidney-shaped, and arc elongated slot is offered on pliers tooth base, facilitates pincers tooth pendulum
It is dynamic, but within the scope of the drilling tool of grips, all tubing strings are not adapted to, it always will appear clamping clip and roller clamp take
The situation of decentraction after drilling tool.In order to overcome the problems, such as this, researcher improves this, sets the pincers tooth of clamping clip to
Arc shaped pincers tooth, arc radius and roller pincers roller are identical, and installation site is concentric, this kind pincers tooth although overcome clamping clip and
After the tight drilling tool of roller clamp the problem of tubing string decentraction, but clamp tooth arc surface and drilling tool be it is circumscribed, pincers sound of baby talk shape is zigzag,
Contact position is easy to wear, and holds the ineffective of drilling tool tightly, is unfavorable for clamping tooth clamping drilling tool.
Utility model content
The purpose of the utility model is to provide a kind of tube drawbench lift arms to clamp the swingable formula clamping clip of tooth, to solve existing skill
The pincers tooth of clamping clip and drilling tool contact position are easy to happen abrasion in tube drawbench lift arm in art, hold ineffective ask tightly
Topic.
In order to solve the above technical problems, technical solution adopted in the utility model are as follows:
A kind of swingable formula clamping clip of pincers tooth, it includes combination fluid cylinder, left arm frame and right arm frame, left arm frame and right arm frame
Tail end is hinged on combination fluid cylinder, and the middle part of left arm frame and right arm frame drives piston with the clamping clip for combining fluid cylinder by connecting rod
Bar is hinged, and pincers tooth retainer assembly, pincers tooth retainer assembly are equipped in the groove of the left arm frame and right arm frame front end
Two groups of pincers dental assemblies are respectively installed in vivo, every group of pincers dental assembly includes pliers tooth base and pincers tooth, and pliers tooth base is triangular prism shape structure,
The tail portion of triangle is hinged in pincers tooth retainer assembly by pin shaft, the rolling on pin shaft and tube drawbench lift arm in roller pincers
It is sub coaxial, it is concentric with the drilling tool for guaranteeing tight with roller clamp after pincers tooth clamps drilling tool；Mounting clamp is provided on pliers tooth base front end face
The groove of tooth, it is arc-shaped for clamping the gripper edge of tooth.
Preferably, the spaced set that interlocks on the side of the two neighboring pliers tooth base has several flanges, to prevent from clamping
Pincers pliers tooth base of left arm frame and right arm frame when clamping small diameter tube drilling tool interferes.
Preferably, the pincers tooth retainer assembly includes pincers tooth retainer and cover board, and cover board is mounted on pincers tooth retainer
Upper and lower ends, pincers tooth retainer is bolted the front end of left arm frame and right arm frame, and pincers dental assembly is hinged on pincers tooth and protects
It holds on frame front side wall in circular groove.
Preferably, the front end face of the pincers tooth is equipped with anti skid chequer.
The a part of the utility model as tube drawbench lift arm binding clip needs to cooperate safety tongs and roller when in use
Pincers work together.When lift arm binding clip clamps drilling tool, roller pincers first position drilling tool centering, and then, clamping clip is in combination liquid
Left arm frame and right arm frame closure are controlled under the driving of cylinder piston rod, the first pincers tooth and the second pincers tooth are in the common of clamping force and drilling tool
Effect is lower to be swung with pin shaft, and pin shaft and roller pincers roller are concentric, when the first pincers tooth and second clamp tooth rotation center and
When the distance between drilling tool center is minimum, four pincers teeth stop swinging under clamping force effect, by four point positioning, realize drilling tool
Clamping, at this point, center and roller the pincers clamping center of drilling tool of clamping clip clamping drilling tool are consistent, moreover, pincers tooth arc surface and
Drilling tool inscribe, under clamping force effect, contact effect is good, and clamping drilling tool is safe and reliable.Finally, combination fluid cylinder drives safe icarceration
It closes, completes drilling tool pinching action.
The utility model has the following beneficial effects:
(1) tail portion of pliers tooth base triangle is hinged in pincers tooth retainer assembly by the utility model by pin shaft, pin
Axis and the roller on tube drawbench lift arm in roller pincers are coaxial, ensure that drilling tool tight with roller clamp after pincers tooth clamps drilling tool is same
The heart；
(2) clamped in the utility model the gripper edge of tooth be it is arc-shaped, ensure that pincers tooth and drilling tool outer wall phase inscribe, increase
Contact area ensure that the stability of drilling tool clamping, improve the reliability of clamping clip；
(3) tooth is clamped in the utility model can meet and clamp according to the specification of clamping drilling tool, the pivot angle of self-adjusting pliers tooth
It is required that；
(4) it is wide to adapt to drilling tool caliber range for the utility model, can satisfy 2 7/8 " clampings of -13 5/8 " drilling tools requirement.
Detailed description of the invention
Fig. 1 is existing tube drawbench lift arm chuck structure form；
Fig. 2 is existing tube drawbench clamping clip structure type one；
Fig. 3 is existing tube drawbench clamping clip structure type two；
Fig. 4 is tube drawbench lift arm chuck structure schematic diagram used by the utility model；
Fig. 5 is the clamping clip structural schematic diagram of the utility model；
Fig. 6 is the pincers tooth swing angle schematic diagram of the utility model；
Fig. 7 is the pincers tooth retainer structural schematic diagram of the utility model；
Fig. 8 is the covering plate structure schematic diagram of the utility model；
Fig. 9 is the pincers tooth minimal closure angle schematic diagram of the utility model；
Figure 10 is the utility model clamping 2 7/8 " schematic diagram of drilling tool；
Figure 11 is A-A cross-sectional view in Figure 10；
Figure 12 is the utility model clamping 13 5/8 " structural schematic diagram of drilling tool；
Figure 13 is B-B cross-sectional view in Figure 12；
In figure: 1, roller clamps, 2, clamping clip, 3, safety tongs, the 4, first pliers tooth base, the 5, first pincers tooth, the 6, second pliers tooth base,
7, the second pincers tooth, 8, combination fluid cylinder, 9, left arm frame, 10, right arm frame, 11, pincers tooth retainer, 12, cover board, 13, pincers tooth, 14, pincers
Tooth seat, 15, pincers dental assembly, 16, connecting rod, 17, flange.
Specific embodiment
The utility model is described in more detail with reference to the accompanying drawing.
The swingable formula clamping clip of a kind of pincers tooth as shown in Figures 1 to 9, it includes combination fluid cylinder 8, left arm frame 9 and right arm
The tail end of frame 10, left arm frame 9 and right arm frame 10 is hinged on combination fluid cylinder 8, and the middle part of left arm frame 9 and right arm frame 10 passes through company
Bar 16 drives piston rod to be hinged with the clamping clip for combining fluid cylinder 8, is equipped with pincers in the groove of 10 front end of left arm frame 9 and right arm frame
Tooth retainer assembly clamps and is respectively equipped with two groups of pincers dental assemblies 15 in tooth retainer assembly, and every group of pincers dental assembly 15 includes pincers
Tooth seat 14 and pincers tooth 13, pliers tooth base 14 are triangular prism shape structure, and the tail portion of triangle is hinged to pincers tooth retainer by pin shaft
In assembly, pin shaft and on tube drawbench lift arm roller pincers 1 in roller it is coaxial, with guarantee pincers tooth 13 clamp drilling tool after with roller
The drilling tool that pincers 1 clamp is concentric；The groove of mounting clamp tooth 13 is provided on 14 front end face of pliers tooth base, the gripper edge of pincers tooth 13 is circular arc
Shape.
The spaced set that interlocks on the side of two neighboring pliers tooth base 14 has several flanges 17, to prevent clamping clip 2 from pressing from both sides
The pliers tooth base 14 of left arm frame 9 and right arm frame 10 interferes when tight small diameter tube drilling tool.
Clamping tooth retainer assembly includes pincers tooth retainer 11 and cover board 12, and cover board 12 is mounted on the upper of pincers tooth retainer 11
Lower both ends, pincers tooth retainer 11 are bolted the front end of left arm frame 9 and right arm frame 10, and pincers dental assembly 15 is hinged on pincers tooth
On 11 front side wall of retainer in circular groove.
The front end face for clamping tooth 13 is equipped with anti skid chequer.
The a part of the utility model as tube drawbench lift arm binding clip needs to cooperate safety tongs 3 and roller when in use
Pincers 1 work together.When lift arm binding clip clamps drilling tool, roller pincers 1 position drilling tool centering first, and then, clamping clip 2 is combining
Left arm frame 9 is controlled under the driving of 8 piston rod of fluid cylinder and right arm frame 10 is closed, and the first pincers tooth 5 and the second pincers tooth 7 are in clamping force and brill
It can be swung with pin shaft under the collective effect of tool, and pin shaft and roller 1 roller of pincers are concentric, when the first pincers tooth 5 and second clamps tooth 7
When the distance between rotation center and drilling tool center are minimum, four pincers teeth stop swinging under clamping force effect, fixed by 4 points
Position, realizes the clamping of drilling tool, at this point, the center that clamping clip 2 clamps drilling tool is consistent with the 1 clamping center of drilling tool of roller pincers, moreover,
Tooth arc surface and drilling tool inscribe are clamped, under clamping force effect, contact effect is good, and clamping drilling tool is safe and reliable.Finally, combination fluid cylinder
8 driving safety tongs 3 are closed, and complete drilling tool pinching action.
The tail portion of 14 triangle of pliers tooth base is hinged in pincers tooth retainer assembly by the utility model by pin shaft, pin shaft
It is coaxial with the roller on tube drawbench lift arm in roller pincers 1, it ensure that the drilling tool clamped after pincers tooth 13 clamps drilling tool with roller pincers 1
With one heart；The gripper edge of pincers tooth 13 is arc-shaped in the utility model, ensure that pincers tooth 13 and drilling tool outer wall phase inscribe, increases and connect
Contacting surface product, ensure that the stability of drilling tool clamping, improves the reliability of clamping clip 2.
Claims (4)
1. a kind of swingable formula clamping clip of pincers tooth, it includes combination fluid cylinder (8), left arm frame (9) and right arm frame (10), left arm frame
(9) it is hinged in combination fluid cylinder (8) with the tail end of right arm frame (10), passes through company in the middle part of left arm frame (9) and right arm frame (10)
Bar (16) drives piston rod to be hinged with the clamping clip for combining fluid cylinder (8), it is characterised in that: the left arm frame (9) and right arm frame
(10) pincers tooth retainer assembly is installed in the groove of front end, clamps in tooth retainer assembly and two groups of pincers dental assemblies is respectively installed
(15), every group of pincers dental assembly (15) includes pliers tooth base (14) and pincers tooth (13), and pliers tooth base (14) is triangular prism shape structure, triangle
The tail portion of shape is hinged in pincers tooth retainer assembly by pin shaft, the rolling on pin shaft and tube drawbench lift arm in roller pincers (1)
It is sub coaxial, to guarantee that the drilling tool clamped after pincers tooth (13) clamp drilling tool with roller pincers (1) is concentric；It is set on pliers tooth base (14) front end face
It is equipped with the groove of mounting clamp tooth (13), the gripper edge of pincers tooth (13) is arc-shaped.
2. the swingable formula clamping clip of pincers tooth according to claim 1, it is characterised in that: the two neighboring pliers tooth base (14)
Side on staggeredly spaced set have several flanges (17), to prevent clamping clip (2) left arm frame when clamping small diameter tube drilling tool
(9) it is interfered with the pliers tooth base (14) of right arm frame (10).
3. the swingable formula clamping clip of pincers tooth according to claim 1 or 2, it is characterised in that: the pincers tooth retainer assembly
Body includes pincers tooth retainer (11) and cover board (12), and cover board (12) is mounted on the upper and lower ends of pincers tooth retainer (11), and pincers tooth is protected
The front end that frame (11) is bolted left arm frame (9) and right arm frame (10) is held, pincers dental assembly (15) are hinged on pincers tooth and keep
On frame (11) front side wall in circular groove.
4. the swingable formula clamping clip of pincers tooth according to claim 3, it is characterised in that: on the front end face of pincers tooth (13)
Equipped with anti skid chequer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822188477.3U CN209603899U (en) | 2018-12-25 | 2018-12-25 | Clamp the swingable formula clamping clip of tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822188477.3U CN209603899U (en) | 2018-12-25 | 2018-12-25 | Clamp the swingable formula clamping clip of tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209603899U true CN209603899U (en) | 2019-11-08 |
Family
ID=68398317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822188477.3U Expired - Fee Related CN209603899U (en) | 2018-12-25 | 2018-12-25 | Clamp the swingable formula clamping clip of tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209603899U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505539A (en) * | 2018-12-25 | 2019-03-22 | 兰州兰石能源装备工程研究院有限公司 | Clamp the swingable formula clamping clip of tooth |
| CN111206887A (en) * | 2020-01-15 | 2020-05-29 | 宝鸡石油机械有限责任公司 | Single-drive double-action holding forceps |
-
2018
- 2018-12-25 CN CN201822188477.3U patent/CN209603899U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505539A (en) * | 2018-12-25 | 2019-03-22 | 兰州兰石能源装备工程研究院有限公司 | Clamp the swingable formula clamping clip of tooth |
| CN111206887A (en) * | 2020-01-15 | 2020-05-29 | 宝鸡石油机械有限责任公司 | Single-drive double-action holding forceps |
| CN111206887B (en) * | 2020-01-15 | 2021-10-15 | 宝鸡石油机械有限责任公司 | Single-drive double-action holding forceps |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20191108 Termination date: 20201225 |