CN220036622U - Back-up wrench clamping mechanism - Google Patents
Back-up wrench clamping mechanism Download PDFInfo
- Publication number
- CN220036622U CN220036622U CN202321116143.XU CN202321116143U CN220036622U CN 220036622 U CN220036622 U CN 220036622U CN 202321116143 U CN202321116143 U CN 202321116143U CN 220036622 U CN220036622 U CN 220036622U
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- plate frame
- jaw plate
- hydraulic cylinder
- cam
- spline
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- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model relates to the technical field of shackle equipment, in particular to a back-up clamp clamping mechanism, which comprises a fixed inner gear ring, wherein the fixed inner gear ring is fixed on an equipment base, a hydraulic cylinder bracket is arranged on the fixed inner gear ring, a front jaw plate frame and a rear jaw plate frame are respectively arranged on two sides of the fixed inner gear ring through a plurality of positioning rollers, the front jaw plate frame and the rear jaw plate frame are connected into an integrated structure through connecting pin shafts, and jaw plate frame lug plates are arranged on the front jaw plate frame and the rear jaw plate frame; the fixed inner gear ring is meshed with three spline gear shafts, two ends of each spline gear shaft are respectively arranged on the front jaw plate frame and the rear jaw plate frame through bearings, one end of each spline gear shaft extending out of the front jaw plate frame is connected with a cam through a spline, a hydraulic cylinder is arranged on the hydraulic cylinder support, and a piston rod of the hydraulic cylinder is hinged with the jaw plate frame lug plate through a pin shaft. The switching between the fastening state and the unfastening state of the back-up pliers clamping mechanism of the cam clamping fastening and unfastening equipment is realized by the complete retraction and the extension of the operating hydraulic cylinder.
Description
Technical Field
The utility model relates to the technical field of shackle equipment, in particular to a back-up wrench clamping mechanism.
Background
The underground tool in the petroleum industry and the core rod needed by perforation and sizing in the production of the seamless steel pipe are connected through threads, cam clamping and screwing equipment is needed, and screwing states are frequently switched due to large screwing and screwing workload. The equipment adopts a cam clamping structure, the back tongs of the screwing-off equipment are passively clamped, the back tongs are fixed after clamping the workpiece, and because the back tongs adopt a cam clamping mode, one side of the cam is required to be used for clamping the workpiece during screwing-off, the other side of the cam is required to be used for clamping the workpiece during screwing-off, and after screwing-off or screwing-off is completed, the clamp is required to be loosened to a maximum opening state so as to be beneficial to the workpiece to enter the screwing-off equipment for screwing-off or screwing-off next time. At present, the back-up pliers mainly adopt a hydraulic cylinder or an air cylinder to drive a back-up pliers jaw plate frame to rotate, a hydraulic cylinder or an air cylinder connecting pin shaft is required to be replaced for switching the screwing-up state and the screwing-out state, namely, a screwing-out connecting lug plate and a screwing-up connecting lug plate are arranged on the back-up pliers, the connecting pin shaft is required to be disassembled on equipment manually, and then the back-up pliers are assembled on the corresponding connecting lug plate in a switching mode. The factory environment is urgent to need a back-up wrench which does not need manual operation for screwing and unscrewing switching, so that the labor intensity of operators is reduced, the automation level of equipment is improved, and the safety risk is reduced.
Disclosure of Invention
The utility model aims to provide a back-up clamp clamping mechanism which can realize the clamping and the shackle clamping of back-up clamps in cam clamping shackle equipment and the switching of the shackle and the shackle states, does not need to disassemble a connecting pin shaft, and is assembled on a corresponding connecting lug plate in a switching way to switch the shackle and the shackle states, so that the back-up clamp clamping mechanism is easy to realize automatic operation, reduces labor intensity and improves the safety of the back-up clamp operation of the cam clamping shackle equipment.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a back-up tong clamping mechanism, includes fixed ring gear 5, its characterized in that: the fixed inner gear ring 5 is fixed on an equipment base, a hydraulic cylinder bracket 12 is arranged on the fixed inner gear ring 5, a front jaw plate frame 3 and a rear jaw plate frame 6 are respectively arranged on two sides of the fixed inner gear ring 5 through a plurality of positioning rollers 4, the front jaw plate frame 3 and the rear jaw plate frame 6 are connected into an integrated structure through a connecting pin shaft 10, and jaw plate frame lug plates 9 are arranged on the front jaw plate frame 3 and the rear jaw plate frame 6; the fixed inner gear ring 5 is meshed with three spline gear shafts 2, the three spline gear shafts 2 and the fixed inner gear ring 5 form planetary transmission, two ends of each spline gear shaft 2 are respectively arranged on the front jaw plate frame 3 and the rear jaw plate frame 6 through bearings, one end of each spline gear shaft 2 extending out of the front jaw plate frame 3 is in spline connection with a cam 11, the outer end of each cam 11 is provided with an end cover 1, a hydraulic cylinder 7 is arranged on a hydraulic cylinder support 12, and a piston rod of each hydraulic cylinder 7 is hinged with a jaw plate frame lug plate 9 through a pin shaft 8.
When the piston rod of the hydraulic cylinder 7 is completely retracted, the hydraulic cylinder 7 is in a buckling state, and when the piston cylinder of the hydraulic cylinder 7 is completely extended, the hydraulic cylinder is in a unbuckling state; the complete retraction and extension of the operating hydraulic cylinder 7 realizes the switching between the fastening state and the unfastening state of the back-up clamp clamping mechanism of the cam clamping fastening and unfastening equipment.
When the piston rod of the hydraulic cylinder 7 is in a fully retracted state, the cam 11 is in a maximum opening state, the clamped workpiece is facilitated to enter the equipment, when the piston rod of the hydraulic cylinder 7 extends out, the front jaw plate frame 3 and the rear jaw plate frame 6 are pushed to rotate clockwise, the spline gear shaft 2 is driven to revolve clockwise, the spline gear shaft 2 rotates anticlockwise under the meshing of the fixed annular gear 5, the cam 11 is driven to rotate anticlockwise to clamp the workpiece, the counter torque is borne, after the operation is completed, the piston rod of the hydraulic cylinder 7 is retracted, and the cam moves reversely and reaches the maximum opening state.
When the piston rod of the hydraulic cylinder 7 extends out of the maximum stroke completely, the cam 11 is still in the maximum opening state after rotating 360 degrees, at the moment, the clamped workpiece is beneficial to entering the equipment, when the piston rod of the hydraulic cylinder 7 is retracted, the front jaw plate frame 3 and the rear jaw plate frame 6 are pushed to rotate anticlockwise together, the spline gear shaft 2 is driven to revolve anticlockwise, the spline gear shaft 2 rotates clockwise under the meshing of the fixed annular gear 5, the cam 11 is driven to rotate clockwise to clamp the workpiece, the counter torque is born, after the operation is completed, the piston rod of the hydraulic cylinder 7 extends out of the maximum stroke, and the cam moves reversely and reaches the maximum opening state.
The beneficial effects of the utility model are as follows: the back-up clamp clamping mechanism of the cam clamping and shackle-up equipment can realize the clamping and shackle clamping of the back-up clamp in the cam clamping and shackle-up equipment, and the switching of the shackle-up and shackle-up states, the connecting pin shaft is not required to be disassembled, the shackle-up and shackle-up states are switched and assembled on the corresponding connecting lug plate, the functions can be realized only by the action of the operating hydraulic cylinder, the automatic operation is easy to realize, the labor intensity is reduced, the automatic level and the operation safety of the back-up clamp of the cam clamping and shackle-up equipment are improved, and the automatic requirement of the back-up clamp of the cam clamping and shackle-up equipment is greatly facilitated for popularization and application of the technology.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
fig. 2 is a schematic structural diagram of the second embodiment of the present utility model.
In the figure: the hydraulic cylinder comprises an end cover 1, a spline gear shaft 2, a front jaw plate frame 3, a positioning roller 4, a fixed inner gear ring 5, a rear jaw plate frame 6, a hydraulic cylinder 7, a pin shaft 8, a jaw plate frame lug plate 9, a connecting pin shaft 10, a cam 11 and a hydraulic cylinder bracket 12.
Detailed Description
The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.
Example 1
1-2, a back-up tong clamping mechanism, including fixed ring gear 5, its characterized in that: the fixed inner gear ring 5 is fixed on an equipment base, a hydraulic cylinder bracket 12 is arranged on the fixed inner gear ring 5, a front jaw plate frame 3 and a rear jaw plate frame 6 are respectively arranged on two sides of the fixed inner gear ring 5 through a plurality of positioning rollers 4, the front jaw plate frame 3 and the rear jaw plate frame 6 are connected into an integrated structure through a connecting pin shaft 10, and jaw plate frame lug plates 9 are arranged on the front jaw plate frame 3 and the rear jaw plate frame 6; the fixed inner gear ring 5 is meshed with three spline gear shafts 2, the three spline gear shafts 2 and the fixed inner gear ring 5 form planetary transmission, two ends of each spline gear shaft 2 are respectively arranged on the front jaw plate frame 3 and the rear jaw plate frame 6 through bearings, one end of each spline gear shaft 2 extending out of the front jaw plate frame 3 is in spline connection with a cam 11, the outer end of each cam 11 is provided with an end cover 1, a hydraulic cylinder 7 is arranged on a hydraulic cylinder support 12, and a piston rod of each hydraulic cylinder 7 is hinged with a jaw plate frame lug plate 9 through a pin shaft 8.
When the piston rod of the hydraulic cylinder 7 is completely retracted, the hydraulic cylinder 7 is in a buckling state, and when the piston cylinder of the hydraulic cylinder 7 is completely extended, the hydraulic cylinder is in a unbuckling state; the complete retraction and extension of the operating hydraulic cylinder 7 realizes the switching between the fastening state and the unfastening state of the back-up clamp clamping mechanism of the cam clamping fastening and unfastening equipment.
Example two
When the piston rod of the hydraulic cylinder 7 is in a fully retracted state, the cam 11 is in a maximum opening state, the clamped workpiece is facilitated to enter the equipment, when the piston rod of the hydraulic cylinder 7 extends out, the front jaw plate frame 3 and the rear jaw plate frame 6 are pushed to rotate clockwise, the spline gear shaft 2 is driven to revolve clockwise, the spline gear shaft 2 rotates anticlockwise under the meshing of the fixed annular gear 5, the cam 11 is driven to rotate anticlockwise to clamp the workpiece, the counter torque is borne, after the operation is completed, the piston rod of the hydraulic cylinder 7 is retracted, and the cam moves reversely and reaches the maximum opening state.
When the piston rod of the hydraulic cylinder 7 fully extends out of the maximum stroke, the cam 11 is still in the maximum opening state after rotating for 360 degrees, at the moment, the clamped workpiece is beneficial to entering the equipment, when the piston rod of the hydraulic cylinder 7 is retracted, the front jaw plate frame (3) and the rear jaw plate frame 6 are pushed to rotate anticlockwise, the spline gear shaft 2 is driven to revolve anticlockwise, the spline gear shaft (2) rotates clockwise under the meshing of the fixed annular gear 5, the cam 11 is driven to rotate clockwise to clamp the workpiece, the counter torque is born, after the operation is completed, the piston rod of the hydraulic cylinder 7 extends out of the maximum stroke, and the cam moves reversely and reaches the maximum opening state.
The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.
Claims (2)
1. The utility model provides a back-up tong clamping mechanism, includes fixed ring gear (5), its characterized in that: the fixed inner gear ring (5) is fixed on the equipment base, a hydraulic cylinder bracket (12) is arranged on the fixed inner gear ring (5), a front jaw plate frame (3) and a rear jaw plate frame (6) are respectively arranged on two sides of the fixed inner gear ring (5) through a plurality of positioning rollers (4), the front jaw plate frame (3) and the rear jaw plate frame (6) are connected into an integrated structure through a connecting pin shaft (10), and jaw plate frame lug plates (9) are arranged on the front jaw plate frame (3) and the rear jaw plate frame (6); the fixed ring gear (5) is meshed with three spline gear shafts (2), three spline gear shafts (2) and the fixed ring gear (5) form planetary transmission, two ends of each spline gear shaft (2) are respectively arranged on the front jaw plate frame (3) and the rear jaw plate frame (6) through bearings, one end spline of each spline gear shaft (2) extending out of the front jaw plate frame (3) is connected with a cam (11), an end cover (1) is arranged at the outer end of each cam (11), a hydraulic cylinder (7) is arranged on each hydraulic cylinder support (12), and piston rods of the hydraulic cylinders (7) are hinged with jaw plate frame lug plates (9) through pin shafts (8).
2. A back-up tong clamping mechanism as in claim 1, wherein: when the piston rod of the hydraulic cylinder (7) is completely retracted, the hydraulic cylinder (7) is in a buckling state, and when the piston cylinder of the hydraulic cylinder (7) is completely extended, the hydraulic cylinder is in a unbuckling state; the complete retraction and extension of the operating hydraulic cylinder (7) are used for realizing the switching between the locking state and the unlocking state of the back-up clamp clamping mechanism of the cam clamping locking and unlocking equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321116143.XU CN220036622U (en) | 2023-05-10 | 2023-05-10 | Back-up wrench clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321116143.XU CN220036622U (en) | 2023-05-10 | 2023-05-10 | Back-up wrench clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220036622U true CN220036622U (en) | 2023-11-17 |
Family
ID=88723061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321116143.XU Active CN220036622U (en) | 2023-05-10 | 2023-05-10 | Back-up wrench clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220036622U (en) |
-
2023
- 2023-05-10 CN CN202321116143.XU patent/CN220036622U/en active Active
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