CN213839347U - Reset stop brake for top drive of petroleum drilling machine - Google Patents
Reset stop brake for top drive of petroleum drilling machine Download PDFInfo
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- CN213839347U CN213839347U CN202022878976.2U CN202022878976U CN213839347U CN 213839347 U CN213839347 U CN 213839347U CN 202022878976 U CN202022878976 U CN 202022878976U CN 213839347 U CN213839347 U CN 213839347U
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- cylinder body
- friction plate
- lower cylinder
- upper cylinder
- brake pad
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Abstract
The utility model relates to an oil-well rig top drives stopper that stops that resets of usefulness, include: an oil cylinder; the hydro-cylinder includes: the upper cylinder body, the lower cylinder body, the piston and the sealing ring; the upper cylinder body and the lower cylinder body are fixedly connected through a first screw and a nut; the piston is arranged in the upper cylinder body and is sealed by a sealing ring; the upper cylinder body and the lower cylinder body have the same piston and sealing ring; the upper cylinder body and the lower cylinder body are provided with oil inlets; the brake pad set is also included; the brake pad group includes: a friction plate seat and a friction plate; the friction plate is bonded on the friction plate seat and is connected on the lower cylinder body through a second screw, and the middle part of the friction plate is provided with a return spring; the brake pad group can axially move relative to the second screw; the upper cylinder body and the lower cylinder body have the same brake pad set, and are both provided with return springs; further comprising: a retaining pin; the stop pin is fixed on the lower cylinder body and penetrates through the friction plate seat to prevent the brake plate group from generating tangential movement during braking; the upper cylinder body and the lower cylinder body have the same stop pin.
Description
Technical Field
The utility model relates to an oil-well rig top drives the structure that the usefulness stops the stopper that resets, especially relates to this stopper.
Background
The caliper brake is widely applied to braking of hoisting, mines, petroleum and other mechanical transmission mechanisms.
The caliper brake in the prior art mainly adopts a group of springs, and the springs push pistons to push brake friction plate groups to clamp a brake disc so as to realize braking of the brake disc. The braking mode is limited by the spring, the caliper brake with the same size has small braking torque, and in the using process, the stroke of the piston is increased due to the abrasion of the friction plate, the compression amount of the spring is reduced through phase change, and the torque cannot be relatively stable.
Disclosure of Invention
The utility model provides a petroleum drilling machine top drives the stopper that stops that resets of usefulness aims at solving foretell problem.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model discloses a: an oil cylinder; the hydro-cylinder include: the upper cylinder body, the lower cylinder body, the piston and the sealing ring; the upper cylinder body and the lower cylinder body are fixedly connected through a first screw and a nut; the piston is arranged in the upper cylinder body and is sealed by a sealing ring; the upper cylinder body and the lower cylinder body have the same piston and sealing ring; the upper cylinder body and the lower cylinder body are provided with oil inlets; the brake pad set is also included; the brake pad group includes: a friction plate seat and a friction plate; the friction plate is bonded on the friction plate seat and is connected to the lower cylinder body through a second screw, and the middle of the friction plate is provided with a return spring; the brake pad group can axially move relative to the second screw; the upper cylinder body and the lower cylinder body have the same brake pad set, and are both provided with return springs; further comprising: a retaining pin; the stop pin is fixed on the lower cylinder body and penetrates through the friction plate seat to prevent the brake pad group from generating tangential movement during braking; the upper cylinder body and the lower cylinder body have the same stop pin.
Compared with the prior art, the beneficial effects of the utility model are that: the piston is pushed by oil pressure, and the friction plate set is pushed to compress the brake disc to realize braking. The magnitude of the oil pressure can be adjusted by the hydraulic station, and the magnitude of the brake torque is in direct proportion to the oil pressure and is not limited. When the oil pressure is not adjusted, the abrasion of the friction plate can be automatically compensated by the stroke of the piston, and the torque cannot be influenced. Thereby obtaining a more stable torque.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
as can be seen from fig. 1: the utility model discloses a: an oil cylinder; the hydro-cylinder include: the device comprises an upper cylinder body 1, a lower cylinder body 2, a piston 3 and a sealing ring 4; the upper cylinder body 1 and the lower cylinder body 2 are fixedly connected through a first screw 10 and a nut 11; the piston 3 is arranged in the upper cylinder body 1 and is sealed by a sealing ring 4; the upper cylinder body 1 and the lower cylinder body 2 have the same piston and sealing ring; the upper cylinder body 1 and the lower cylinder body 2 are both provided with oil inlets A; the brake pad set is also included; the brake pad group includes: a friction plate seat 5 and a friction plate 6; the friction plate 6 is bonded on the friction plate seat 5 and is connected on the lower cylinder body 2 through a second screw 7, and a return spring 8 is arranged in the middle; the brake pad set can move axially relative to the second screw 7; the upper cylinder body 1 and the lower cylinder body 2 have the same brake pad set, and are both provided with a return spring 8; further comprising: the stop pin 9; the stop pin 9 is fixed on the lower cylinder body 2 and penetrates through the friction plate seat 5 to prevent the brake pad group from generating tangential movement during braking; the upper cylinder 1 and the lower cylinder 2 have the same stop pin 9.
The utility model discloses a theory of operation is: when hydraulic oil from the outside enters the oil cylinder through the port A, the piston 3 in the upper cylinder body 1 and the lower cylinder body 2 is pushed to move towards the middle, and the piston 3 pushes the brake pad group to clamp the brake disc, so that braking is realized. When the hydraulic oil is discharged from the port A, the second screw 7 is jacked up by the reset spring 8 to drive the brake pad group to move towards two sides, the brake pad group is opened, and the brake disc can rotate.
Claims (1)
1. A reset stop brake for oil rig top drive, comprising: an oil cylinder; the hydro-cylinder include: the upper cylinder body, the lower cylinder body, the piston and the sealing ring; the upper cylinder body and the lower cylinder body are fixedly connected through a first screw and a nut; the piston is arranged in the upper cylinder body and is sealed by a sealing ring; the upper cylinder body and the lower cylinder body have the same piston and sealing ring; the upper cylinder body and the lower cylinder body are provided with oil inlets; the brake pad set is also included; the brake pad group includes: a friction plate seat and a friction plate; the friction plate is bonded on the friction plate seat and is connected to the lower cylinder body through a second screw, and the middle of the friction plate is provided with a return spring; the brake pad group can axially move relative to the second screw; the upper cylinder body and the lower cylinder body have the same brake pad set, and are both provided with return springs; further comprising: a retaining pin; the stop pin is fixed on the lower cylinder body and penetrates through the friction plate seat to prevent the brake pad group from generating tangential movement during braking; the upper cylinder body and the lower cylinder body have the same stop pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022878976.2U CN213839347U (en) | 2020-12-02 | 2020-12-02 | Reset stop brake for top drive of petroleum drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022878976.2U CN213839347U (en) | 2020-12-02 | 2020-12-02 | Reset stop brake for top drive of petroleum drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213839347U true CN213839347U (en) | 2021-07-30 |
Family
ID=76996065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022878976.2U Active CN213839347U (en) | 2020-12-02 | 2020-12-02 | Reset stop brake for top drive of petroleum drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213839347U (en) |
-
2020
- 2020-12-02 CN CN202022878976.2U patent/CN213839347U/en active Active
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