CN202645472U - Screwing on/off plier - Google Patents
Screwing on/off plier Download PDFInfo
- Publication number
- CN202645472U CN202645472U CN 201220260206 CN201220260206U CN202645472U CN 202645472 U CN202645472 U CN 202645472U CN 201220260206 CN201220260206 CN 201220260206 CN 201220260206 U CN201220260206 U CN 201220260206U CN 202645472 U CN202645472 U CN 202645472U
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- pincers
- moment
- pivoted arm
- box
- clamping cylinder
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- Expired - Lifetime
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Abstract
The utility model discloses a screwing on/off plier, which includes upper pliers, back pliers, a rotating mechanism and a slideway mechanism, wherein the upper pliers include an upper box body and an upper clamping mechanism arranged in the upper box body, and the upper clamping mechanism clamps a pipe fitting; the back pliers include a lower box body and a lower clamping mechanism arranged in the lower box body, the lower clamping mechanism clamps the pipe fitting, and the back pliers are arranged under the upper pliers; the rotating mechanism includes upper torque cylinders and lower torque cylinders, the upper torque cylinders are connected with the upper pliers and drive the upper pliers to rotate, the lower torque cylinders are connected with the back pliers and drive a rotating arm to rotate, and the rotating arm rotates to drive the upper pliers to further rotate; the slideway mechanism is mounted between the back pliers and the upper pliers, the upper pliers slide relative to the back pliers along the slideway mechanism, and the slideway mechanism includes a circular arc male guide rail mounted on the upper surface of the upper box body, rolling wheels mounted on the lower surface of the upper box body, and double circular arc female guide rails mounted on the upper surface of the lower box body. The screwing on/off plier can rotate continuously for twice after clamping the pipe fitting once, so as to complete screwing on or screwing off during one operation.
Description
Technical field
The utility model relates to the oil drilling and extracting equipment field, more particularly, relate to a kind of for the pipe fittings such as drilling rod, sleeve pipe, oil pipe are carried out shackle on unload clasp forceps.
Background technology
In the drilling process and maintenance process of oil well, various iron drillers can be equipped with use, be used for upper button and shackle turnbuckle clamp and on unload the Core Feature parts that clasp forceps is iron driller, in order to upper the button and the program of shackle of finishing drilling rod, sleeve pipe, oil pipe (hereinafter to be referred as pipe fitting), but, unload clasp forceps or collapse clasp forceps on present and have common shortcoming:
1) the moment of torsion oil cylinder that unloads clasp forceps on adopts single oil cylinder arrangement, owing to the restriction of structure space, finishes the upper pincers of button or shackle, can only rotate once, if in the time of can not finishing button or shackle, just need upper pincers to unclamp pipe fitting and return the origin-location, operation is once again;
2) the clamp arrangement in upper pincers and the back-up tong is the double fastener pincers, and employing is arranged symmetrically with, in the process that clamps pipe fitting, and the automatic reclosing ability at jaw center and pipe fitting center;
3) when upper button or shackle, upper pincers rotate relative to back-up tong, rotating manner adopt upper clamp and back-up tong between coupling chute modes, frictional resistance is relatively large.
The utility model content
The utility model is intended to propose a kind ofly unload clasp forceps on novel.
According to an embodiment of the present utility model, propose to unload clasp forceps on a kind of, comprise pincers, back-up tong, rotating mechanism and sliding track mechanism.Upper pincers comprise upper box and the upper clamping mechanism that is arranged in the upper box, and upper clamping mechanism clamps pipe fitting.Back-up tong comprises lower box and the lower clamp mechanism that is arranged in the lower box, and lower clamp mechanism clamps pipe fitting, and back-up tong is arranged on the below of pincers.Rotating mechanism comprises moment of torsion oil cylinder and lower moment of torsion oil cylinder, and upper moment of torsion oil cylinder is connected to pincers and promotes upper the pincers and rotates, and lower moment of torsion oil cylinder is connected to back-up tong and promotes pivoted arm and rotates, and pivoted arm rotates to drive upward to clamp and is further rotated.Sliding track mechanism is installed between back-up tong and the upper pincers, upper pincers slide with respect to back-up tong along sliding track mechanism, and sliding track mechanism comprises the circular arc male guie rail that is installed on the upper box upper surface, be installed on the roller of upper box soffit and be installed on the female guide rail of Gothic of lower box upper surface.
In one embodiment, upper clamping mechanism comprises several epiplastrons, upper clamping cylinder, upper guide strip, top shoe and upper jaw.Several epiplastrons are fixed in the upper box.Upper clamping cylinder is installed in the epiplastron, in the upper clamping cylinder linear displacement transducer is installed.Upper guide strip is installed on the epiplastron, and upper guide strip is arranged on the both sides of clamping cylinder.Top shoe is installed in the front end of clamping cylinder.Upper jaw is connected to the piston end of clamping cylinder, and upper jaw is V-shaped and surperficially have a lines.In one embodiment, epiplastron is three, is 120 ° of distributions in upper box.Upper clamping cylinder is three, is placed on respectively in three epiplastrons, and upper clamping cylinder is 120 ° of distributions.The up and down both sides of upper jaw are equipped with the anti-attrition piece.
In one embodiment, lower clamp mechanism comprises several bottom webs, lower clamping cylinder, lower guide plate, sliding block and lower jaw.Several bottom webs are fixed in the lower box.Lower clamping cylinder is installed in the bottom web, in the lower clamping cylinder linear displacement transducer is installed.Lower guide plate is installed on the bottom web, and lower guide plate is arranged on the both sides of lower clamping cylinder.Sliding block is installed in the front end of lower clamping cylinder.Lower jaw is connected to the piston end of lower clamping cylinder, and lower jaw is V-shaped and surperficially have a lines.In one embodiment, bottom web is three, is 120 ° of distributions in lower box.Lower clamping cylinder is three, is placed on respectively in three bottom webs, and lower clamping cylinder is 120 ° of distributions.The up and down both sides of lower jaw are equipped with the anti-attrition piece.
In one embodiment, upper moment of torsion oil cylinder is two, is arranged in the both sides of pincers, and the telescopic end of upper moment of torsion oil cylinder is hinged to pincers.Lower moment of torsion oil cylinder is two, is arranged in the both sides of back-up tong, and the telescopic end of lower moment of torsion oil cylinder is hinged to back-up tong.Pivoted arm also comprises the first pivoted arm and the second pivoted arm, and the first pivoted arm and the second pivoted arm are arranged in the both sides of pincers and back-up tong, the first pivoted arm be connected pivoted arm and connect separately be positioned at the same side one upper moment of torsion oil cylinder and a lower moment of torsion oil cylinder.The first end of the first pivoted arm and the second pivoted arm is articulated on the lower box, and the second end of the first pivoted arm and the second pivoted arm is the double end end, comprises upper pin and lower bearing pin, and upper pin is hinged to the fixed end of moment of torsion oil cylinder, and lower bearing pin is hinged to the fixed end of lower moment of torsion oil cylinder.
In one embodiment, comprise two groups of rollers, two groups of rollers are arranged symmetrically with, and are consolidated in the soffit of upper box, and roller rolls along the female guide rail of Gothic between upper box and lower box.In one embodiment, roller comprises roller, self lubrication bearing, multi-directional ball, shaft block ring and fixed axis.
In one embodiment, unload clasp forceps on described and also comprise induction pin, inductive switch, shrouding and U-shaped plate.The induction pin is installed in the upper box tail end.Inductive switch is installed in the lower box afterbody, and the sensitive surface of inductive switch is also aimed at the induction pin up.Shrouding is fixed on the back-up tong by bearing pin.U-shaped plate is arranged on the both sides of pincers, the upper pincers of the common sealing of U-shaped plate and shrouding.Have interior circular arc on the shrouding, interior circular arc is stuck in the outer ring of circular arc male guie rail.
Unload the double rotation after clasp forceps can realize once clamping pipe fitting on of the present utility model, guarantee in once-through operation, to finish button or shackle, improve device efficiency.The arrangement of the clamp mechanism in upper pincers and back-up tong adopts 120 ° of equal mode for cloth of three clamps, and jaw is V-structure, and three V-type jaws clamp pipe fitting simultaneously, make to unload clasp forceps center and pipe fitting center superposition.Upper pincers rotate relative to back-up tong, and the pincers upper and lower surface arranges guide rail and adds the roller mode in the employing, reduces the frictional resistance in rotating.
Description of drawings
It is more obvious that the above and other feature of the utility model, character and advantage will become by the description below in conjunction with drawings and Examples, and identical Reference numeral represents identical feature all the time in the accompanying drawings, wherein:
Fig. 1 has disclosed according to the front view that unloads clasp forceps on the embodiment of the present utility model.
Fig. 2 has disclosed according to the lateral plan that unloads clasp forceps on the embodiment of the present utility model.
Fig. 3 has disclosed according to the top view that unloads clasp forceps on the embodiment of the present utility model.
Fig. 4 has disclosed according to the top view that unloads the upper pincers of clasp forceps on the embodiment of the present utility model.
Fig. 5 has disclosed according to the front view that unloads the upper pincers of clasp forceps on the embodiment of the present utility model.
Fig. 6 has disclosed the internal construction top view according to the upper pincers that unload clasp forceps on the embodiment of the present utility model.
Fig. 7 has disclosed according to the side view cutaway drawing that unloads the upper pincers of clasp forceps on the embodiment of the present utility model.
Fig. 8 has disclosed according to the top view that unloads the back-up tong of clasp forceps on the embodiment of the present utility model.
Fig. 9 has disclosed according to the lateral view that unloads the back-up tong of clasp forceps on the embodiment of the present utility model.
Figure 10 has disclosed according to the front view that unloads the back-up tong of clasp forceps on the embodiment of the present utility model.
Figure 11 has disclosed the internal construction top view according to the back-up tong that unloads clasp forceps on the embodiment of the present utility model.
Figure 12 has disclosed the sectional view according to the pivoted arm of the moment of torsion oil cylinder that unloads clasp forceps on the embodiment of the present utility model.
Figure 13 has disclosed according to the moment of torsion oil cylinder that unloads clasp forceps on the embodiment of the present utility model and the sectional view of upper clipper joint.
Figure 14 has disclosed the sectional view that is connected with back-up tong according to the moment of torsion oil cylinder that unloads clasp forceps on the embodiment of the present utility model.
Figure 15 has disclosed according to the sectional view that unloads the roller of clasp forceps on the embodiment of the present utility model.
Figure 16 has disclosed according to the structure chart that unloads the shrouding of clasp forceps on the embodiment of the present utility model.
Figure 17 has disclosed the sectional view according to the front end consolidation structure of the shrouding that unloads clasp forceps on the embodiment of the present utility model and back-up tong.
Figure 18 has disclosed the sectional view according to the rear end consolidation structure of the shrouding that unloads clasp forceps on the embodiment of the present utility model and back-up tong.
Figure 19 a has disclosed according to the upper pincers that unload clasp forceps on the embodiment of the present utility model and has clockwise rotated 30 °, makes pincers be in the shackle SBR.
Figure 19 b has disclosed according to the upper pincers that unload clasp forceps on the embodiment of the present utility model and has carried out the shackle action, rotates counterclockwise 30 ° state.
Figure 19 c has disclosed according to the pivoted arm that unloads clasp forceps on the embodiment of the present utility model to rotate, and pincers rotate counterclockwise 30 ° again in the drive, make pincers altogether rotate 60 ° state.
The specific embodiment
As shown in the figure, the utility model has disclosed and has unloaded clasp forceps on a kind of, comprising: on clamp 100, back-up tong 200, rotating mechanism 300 and sliding track mechanism 400.With reference to figure 1 and Fig. 2, upper pincers 100 comprise upper box and the upper clamping mechanism that is arranged in the upper box, and upper clamping mechanism clamps pipe fitting.Back-up tong 200 comprises lower box and the lower clamp mechanism that is arranged in the lower box, lower clamp mechanism clamps pipe fitting, the below rotating mechanism 300 that back-up tong 200 is arranged on pincers 100 comprises moment of torsion oil cylinder and lower moment of torsion oil cylinder, upper moment of torsion oil cylinder is connected to pincers 100 and promotes upper pincers 100 rotations, lower moment of torsion oil cylinder is connected to back-up tong 200 and promotes pivoted arm 311,312 and rotates, and pivoted arm 311,312 rotates the upper pincers 100 of drive and is further rotated.Sliding track mechanism 400 is installed between back-up tong 200 and the upper pincers 100, and upper pincers 100 slide with respect to back-up tong 200 along sliding track mechanism 400.Sliding track mechanism 400 comprises the circular arc male guie rail 402 that is installed on upper box 101 upper surfaces, be installed on the roller 401 of upper box 101 soffits and be installed on the female guide rail 403 of Gothic of lower box 201 upper surfaces.
With reference to figure 4, Fig. 5, Fig. 6 and Fig. 7, upper pincers 100 comprise upper box 101 and the upper clamping mechanism that is arranged in the upper box, and upper clamping mechanism comprises several epiplastrons 104, upper clamping cylinder 103, upper guide strip 105, top shoe 106 and upper jaw 108.Several epiplastrons 104 are fixed in the upper box.Upper clamping cylinder 103 is installed in the epiplastron 104, in the upper clamping cylinder 103 linear displacement transducer 102 is installed.Upper guide strip 105 is installed on the epiplastron 104, and upper guide strip 105 is arranged on the both sides of clamping cylinder 103.Top shoe 106 is installed in the front end of clamping cylinder 103.Upper jaw 108 is connected to the piston end of clamping cylinder 103, and upper jaw 108 is V-shaped and surperficially have a lines.In illustrated embodiment, epiplastron 104 is three, is 120 ° of distributions in upper box 101.Upper clamping cylinder 103 is three, is placed on respectively in three epiplastrons 104, and upper clamping cylinder 103 also is 120 ° of distributions.The up and down both sides of upper jaw 108 are equipped with anti-attrition piece 107.
With reference to figure 8, Fig. 9, Figure 10 and Figure 11, back-up tong 200 comprises lower box 201 and the lower clamp mechanism that is arranged in the lower box, and lower clamp mechanism comprises several bottom webs 204, lower clamping cylinder 203, lower guide plate 205, sliding block 206 and lower jaw 208.Several bottom webs 204 are fixed in the lower box 201.Lower clamping cylinder 203 is installed in the bottom web 204, in the lower clamping cylinder 203 linear displacement transducer 202 is installed.Lower guide plate 205 is installed on the bottom web 204, and lower guide plate 205 is arranged on the both sides of lower clamping cylinder 203.Sliding block 206 is installed in the front end of lower clamping cylinder 203.Lower jaw 208 is connected to the piston end of lower clamping cylinder 203, and lower jaw 208 is V-shaped and surperficially have a lines.In illustrated embodiment, bottom web 204 is three, is 120 ° of distributions in lower box 201.Lower clamping cylinder 203 is three, is placed on respectively in three bottom webs 204, and lower clamping cylinder 203 is 120 ° of distributions.The up and down both sides of lower jaw 208 are equipped with anti-attrition piece 207.
With reference to figure 2, Fig. 4, Figure 11, Figure 12, Figure 13 and Figure 14, upper moment of torsion oil cylinder is two, comprise on first moment of torsion oil cylinder 322 on the moment of torsion oil cylinder 321 and second, be arranged in the both sides of pincers 100, upper moment of torsion oil cylinder 321 and 322 telescopic end are hinged to the two ends of pincers 100.Lower moment of torsion oil cylinder is two also, comprises second time moment of torsion oil cylinder 331 and second time moment of torsion oil cylinder 332, is arranged in the both sides of back-up tong 200, and lower moment of torsion oil cylinder 331 and 332 telescopic end are hinged to the both sides of back-up tong 200.Pivoted arm comprises the first pivoted arm 311 and the second pivoted arm 312, the first pivoted arm 311 and the second pivoted arm 322 are arranged in the both sides of pincers 100 and back-up tong 200, the first pivoted arm 311 be connected pivoted arm 322 and connect separately be positioned at the same side one upper moment of torsion oil cylinder and a lower moment of torsion oil cylinder.Particularly, the first pivoted arm 311 connects moment of torsion oil cylinder 321 and first time moment of torsion oil cylinder 331 on first.The second pivoted arm 322 connects moment of torsion oil cylinder 322 and second time moment of torsion oil cylinder 332 on second.The first end of the first pivoted arm 311 and the second pivoted arm 312 is articulated on the lower box 201, specifically, is the rear side two ends that are articulated in lower box 201.The second end of the first pivoted arm 311 and the second pivoted arm 312 is the double end end, comprises upper pin and lower bearing pin, and upper pin is hinged to the fixed end of moment of torsion oil cylinder 321 and 322, and lower bearing pin is hinged to the fixed end of lower moment of torsion oil cylinder 331 and 332.
With reference to figure 1, Fig. 2, Fig. 3, Fig. 4, Fig. 7, Fig. 8, Figure 15, Figure 16, Figure 17 and Figure 18, sliding track mechanism 400 comprises circular arc male guie rail 402, the female guide rail 403 of Gothic and two groups of rollers 401.Circular arc male guie rail 402 is installed on the upper surface of upper box 101.The female guide rail 403 of Gothic is installed on the upper surface of lower box 201.Two groups of rollers 401 are arranged symmetrically with, and roller 401 is consolidated in the soffit of upper box 101, and roller 401 rolls along the female guide rail 403 of Gothic between upper box 101 and lower box 201.As shown in the figure, roller 401 comprises roller 411, self lubrication bearing 412, multi-directional ball 413, shaft block ring 414 and fixed axis 415.
Unload clasp forceps on being somebody's turn to do and also comprise induction pin 404, inductive switch 405, shrouding 406 and U-shaped plate 420.Induction pin 404 is installed in upper box 101 tail ends.Inductive switch 405 is installed in lower box 201 afterbodys, and the sensitive surface of inductive switch 405 is also aimed at induction pin 404 up.Shrouding 406 is fixed on the back-up tong 200 by bearing pin, and particularly, shrouding 406 is consolidated on the back-up tong 200 by two groups of bearing pins 407 of rear end and four groups of bearing pins 408 of front end.U-shaped plate 420 is arranged on the both sides of pincers 100, U-shaped plate 420 and the upper pincers 100 of shrouding 406 common sealings.Have interior circular arc on the shrouding 406, interior circular arc is stuck in the outer ring of circular arc male guie rail 402.
Should on to unload the course of work of clasp forceps as follows: the lower jaw 208 that three groups of back-up tong 200 are 120 ° of branches is stretched out by clamping cylinder 203 driven in synchronism under three groups, clamp a pipe fitting, lower clamping cylinder 203 built-in linear displacement transducers 202, after linear displacement transducer 202 confirms that the position synchronously, upper pincers 100 counterclockwise or clockwise rotate 30 °, be in button or shackle SBR, the upper jaw 108 that three groups of upper pincers 100 are 120 ° of branches is stretched out by clamping cylinder 103 driven in synchronism on three groups, upper clamping cylinder 103 built-in linear displacement transducers 102, after linear displacement transducer 102 confirmed that the position synchronously, another pipe fitting was clamped.The lower moment of torsion oil cylinder 331 and 332 hinged with back-up tong 200 is in and tight state, the first pivoted arm 311 and the second pivoted arm 312 need to be positioned the position, the upper moment of torsion oil cylinder 321 and 322 hinged with upper pincers 100 carries out counterclockwise or clockwise motion, pincers 100 rotate in the drive, carry out upper button or shackle, pincers 100 counterclockwise or clockwise rotated 30 ° on this moment, if the once rotation of upper pincers 100 can not be finished button or shackle, at this moment go up that moment of torsion oil cylinder 321 and 322 is in and tight state, lower moment of torsion oil cylinder 331 and 332 then stretches, drive the first pivoted arm 311 and 312 rotations of the second pivoted arm, the upper button of direction and upper pincers 100 or shackle rotation direction are in the same way, thereby pincers 100 rotate again in the drive, and pincers 100 have just rotated 60 ° counterclockwise or clockwise altogether on this moment.Shown in Figure 19 a, Figure 19 b, Figure 19 c is the rotation process of pincers 100 on the shackle process.
In the rotation process of upper pincers 100, two groups of rollers 401 roll in the female guide rail 403 of Gothic, and circular arc male guie rail 402 rotates along the inner arc surface of shrouding 406 simultaneously.
After finishing upper button or shackle, three of upper pincers 100 upper clamping cylinder 103 synchronous drive upper jaws 108 and regain, and linear displacement transducer 102 signal that makes zero is determined that clamp unclamps to return zero-bit.Upper moment of torsion oil cylinder 321 and 322 carries out counter-rotation, senses induction pin 404 when inductive switch 405, determines that upward pincers 100 are got back to zero-bit.Lower clamping cylinder 203 synchronous of three of back-up tong 200 drive lower jaws 208 and regain, and linear displacement transducer 202 signal that makes zero is determined that clamp unclamps to return zero-bit.
Unload the double rotation after clasp forceps can realize once clamping pipe fitting on of the present utility model, guarantee in once-through operation, to finish button or shackle, improve device efficiency.The arrangement of the clamp mechanism in upper pincers and back-up tong adopts 120 ° of equal mode for cloth of three clamps, and jaw is V-structure, and three V-type jaws clamp pipe fitting simultaneously, make to unload clasp forceps center and pipe fitting center superposition.Upper pincers rotate relative to back-up tong, and the pincers upper and lower surface arranges guide rail and adds the roller mode in the employing, reduces the frictional resistance in rotating.
Above-described embodiment provides to being familiar with the person in the art and realizes or use of the present utility model; those skilled in the art can make various modifications or variation to above-described embodiment and not break away from utility model thought of the present utility model; thereby protection domain of the present utility model do not limit by above-described embodiment, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (10)
1. unload clasp forceps on one kind, it is characterized in that, comprising:
Upper pincers, upper pincers comprise upper box and the upper clamping mechanism that is arranged in the upper box, and upper clamping mechanism clamps pipe fitting;
Back-up tong, back-up tong comprise lower box and the lower clamp mechanism that is arranged in the lower box, and lower clamp mechanism clamps pipe fitting, and back-up tong is arranged on the below of pincers;
Rotating mechanism comprises moment of torsion oil cylinder and lower moment of torsion oil cylinder, and upper moment of torsion oil cylinder is connected to pincers and promotes upper the pincers and rotates, and lower moment of torsion oil cylinder is connected to back-up tong and promotes pivoted arm and rotates, and pivoted arm rotates to drive upward to clamp and is further rotated;
Sliding track mechanism, sliding track mechanism is installed between back-up tong and the upper pincers, upper pincers slide with respect to back-up tong along sliding track mechanism, and sliding track mechanism comprises the circular arc male guie rail that is installed on the upper box upper surface, be installed on the roller of upper box soffit and be installed on the female guide rail of Gothic of lower box upper surface.
2. unload clasp forceps on as claimed in claim 1, it is characterized in that, described upper clamping mechanism comprises:
Several epiplastrons, several epiplastrons are fixed in the upper box;
Upper clamping cylinder, upper clamping cylinder is installed in the epiplastron, in the upper clamping cylinder linear displacement transducer is installed;
Upper guide strip is installed on the epiplastron, and upper guide strip is arranged on the both sides of clamping cylinder;
Top shoe is installed in the front end of clamping cylinder;
Upper jaw is connected to the piston end of clamping cylinder, and upper jaw is V-shaped and surperficially have a lines.
3. unload clasp forceps on as claimed in claim 2, it is characterized in that,
Described epiplastron is three, is 120 ° of distributions in upper box;
Upper clamping cylinder is three, is placed on respectively in three epiplastrons, and upper clamping cylinder is 120 ° of distributions;
The up and down both sides of upper jaw are equipped with the anti-attrition piece.
4. unload clasp forceps on as claimed in claim 2, it is characterized in that, described lower clamp mechanism comprises:
Several bottom webs, several bottom webs are fixed in the lower box;
Lower clamping cylinder, lower clamping cylinder is installed in the bottom web, in the lower clamping cylinder linear displacement transducer is installed;
Lower guide plate is installed on the bottom web, and lower guide plate is arranged on the both sides of lower clamping cylinder;
Sliding block is installed in the front end of lower clamping cylinder;
Lower jaw is connected to the piston end of lower clamping cylinder, and lower jaw is V-shaped and surperficially have a lines.
5. unload clasp forceps on as claimed in claim 4, it is characterized in that,
Described bottom web is three, is 120 ° of distributions in lower box;
Lower clamping cylinder is three, is placed on respectively in three bottom webs, and lower clamping cylinder is 120 ° of distributions;
The up and down both sides of lower jaw are equipped with the anti-attrition piece.
6. unload clasp forceps on as claimed in claim 4, it is characterized in that,
Upper moment of torsion oil cylinder is two, is arranged in the both sides of pincers, and the telescopic end of upper moment of torsion oil cylinder is hinged to pincers;
Lower moment of torsion oil cylinder is two, is arranged in the both sides of back-up tong, and the telescopic end of lower moment of torsion oil cylinder is hinged to back-up tong;
Described pivoted arm comprises the first pivoted arm and the second pivoted arm, and the first pivoted arm and the second pivoted arm are arranged in the both sides of pincers and back-up tong, the first pivoted arm be connected pivoted arm and connect separately be positioned at the same side one upper moment of torsion oil cylinder and a lower moment of torsion oil cylinder;
The first end of the first pivoted arm and the second pivoted arm is articulated on the lower box, and the second end of the first pivoted arm and the second pivoted arm is the double end end, comprises upper pin and lower bearing pin, and upper pin is hinged to the fixed end of moment of torsion oil cylinder, and lower bearing pin is hinged to the fixed end of lower moment of torsion oil cylinder.
7. unload clasp forceps on as claimed in claim 1, it is characterized in that, described sliding track mechanism comprises:
Described roller is two groups, and two groups of rollers are arranged symmetrically with, and are consolidated in the soffit of upper box, and described roller rolls along the female guide rail of Gothic between upper box and lower box.
8. unload clasp forceps on as claimed in claim 7, it is characterized in that, described roller comprises roller, self lubrication bearing, multi-directional ball, shaft block ring and fixed axis.
9. unload clasp forceps on as claimed in claim 7, it is characterized in that, also comprise:
The induction pin is installed in the upper box tail end;
Inductive switch is installed in the lower box afterbody, and the sensitive surface of inductive switch is also aimed at the induction pin up;
Shrouding is fixed on the back-up tong by bearing pin;
U-shaped plate is arranged on the both sides of pincers, the upper pincers of the common sealing of U-shaped plate and shrouding.
10. unload clasp forceps on as claimed in claim 9, it is characterized in that,
Have interior circular arc on the shrouding, interior circular arc is stuck in the outer ring of circular arc male guie rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220260206 CN202645472U (en) | 2012-06-04 | 2012-06-04 | Screwing on/off plier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220260206 CN202645472U (en) | 2012-06-04 | 2012-06-04 | Screwing on/off plier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645472U true CN202645472U (en) | 2013-01-02 |
Family
ID=47414594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220260206 Expired - Lifetime CN202645472U (en) | 2012-06-04 | 2012-06-04 | Screwing on/off plier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202645472U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806854A (en) * | 2014-01-29 | 2014-05-21 | 上海久卓机电设备有限公司 | Iron roughneck |
| CN106968623A (en) * | 2017-05-24 | 2017-07-21 | 上海振华重工(集团)股份有限公司 | It is a kind of that there is the iron driller that clasp forceps is unloaded on new |
-
2012
- 2012-06-04 CN CN 201220260206 patent/CN202645472U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806854A (en) * | 2014-01-29 | 2014-05-21 | 上海久卓机电设备有限公司 | Iron roughneck |
| CN106968623A (en) * | 2017-05-24 | 2017-07-21 | 上海振华重工(集团)股份有限公司 | It is a kind of that there is the iron driller that clasp forceps is unloaded on new |
| CN106968623B (en) * | 2017-05-24 | 2024-03-15 | 上海振华重工(集团)股份有限公司 | Iron roughneck with shackle clamp |
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| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20130102 |