CN220748870U - Pliers head disc type braking device of power tongs - Google Patents
Pliers head disc type braking device of power tongs Download PDFInfo
- Publication number
- CN220748870U CN220748870U CN202321890925.9U CN202321890925U CN220748870U CN 220748870 U CN220748870 U CN 220748870U CN 202321890925 U CN202321890925 U CN 202321890925U CN 220748870 U CN220748870 U CN 220748870U
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- brake
- ring
- disc
- braking
- cylinder
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- 238000007667 floating Methods 0.000 claims abstract description 16
- 230000003068 static effect Effects 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 29
- 238000004140 cleaning Methods 0.000 description 20
- 238000005507 spraying Methods 0.000 description 19
- 239000004519 grease Substances 0.000 description 12
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Abstract
The utility model provides a clamp head disc type braking device of a power tongs, which relates to the technical field of power tongs braking and comprises the following components: the utility model provides a power tongs shell casing, brake disc, floating body, disk brake subassembly, braking ring and braking cylinder, the braking ring cover is established on the brake disc, and the disk brake subassembly includes: the brake cylinder is used for driving the brake ring to brake, and the disc brake lower ring is fixedly connected to the shell of the power tongs. The utility model has simple structure and reliable performance, changes the band braking mode of the traditional power tongs, adopts disc braking, increases the friction plate by adjusting the working air pressure of the braking air cylinder, can change the braking force and reduces the abrasion of the friction plate during normal operation.
Description
Technical Field
The utility model relates to the technical field of power clamp braking, in particular to a clamp head disc type braking device of a power clamp.
Background
When a common cam clamping type clamp head clamps a pipe column, a certain angle can be rotated between a brake disc and a floating body relatively, so that the relative position of the brake disc and the floating body is changed; when the working torque of the floating body driving the brake disc to rotate is smaller than the torque caused by the braking force, the floating body rotates but the brake disc does not rotate, and at the moment, the brake disc and the floating body relatively rotate by an angle; the traditional power tongs apply braking force by arranging a braking belt on the outer circle of the braking disc, and the braking belt is always held tightly on the outer circle of the braking disc, so that the torque output by the tongs head of the power tongs is consumed, and the braking belt is quickly worn.
Disclosure of Invention
The utility model aims to provide a clamp head disc type braking device of a power tongs, which aims to solve one or more problems in the background art.
In order to achieve the above object, one of the objects of the present utility model is a caliper head disc brake device of a power tongs, comprising: the utility model provides a power tongs shell casing, brake disc, floating body, disk brake subassembly, braking ring and braking cylinder, the braking ring cover is established on the brake disc, and the disk brake subassembly includes: the inner cavity of the brake disc is sleeved on the outer circumferential surface of the floating body and is positioned between the upper disc brake ring and the lower disc brake ring, the brake cylinder is used for driving the brake ring to brake, and the lower disc brake ring is fixedly connected to the shell of the power tongs.
In some realizable modes, a movable friction plate is arranged on the lower plane of the upper ring of the disc brake, the head part of a piston rod of a brake cylinder is connected with the movable friction plate, and the brake cylinder is used for driving the piston rod to extend out after ventilation so as to compress the movable friction plate on the brake ring.
In some implementations, a static friction plate is arranged on the lower plane of the lower disc brake ring, and the brake cylinder is used for driving the piston rod to extend after ventilation to compress the dynamic friction plate on the brake ring so as to be in contact with the static friction plate.
In some implementations, the body of the brake cylinder is fixedly connected to the disc brake upper ring.
In some implementations, the lower disc brake ring and the upper disc brake ring are fixedly connected by bolts.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model has simple structure and reliable performance, changes the band braking mode of the traditional power tongs, adopts the existing disc type braking, increases the friction plate by adjusting the working air pressure of the braking air cylinder, can change the braking force and reduces the abrasion of the friction plate during normal operation.
Drawings
FIG. 1 is a schematic view of the present utility model applied to a front view of a multi-functional drilling power tong;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic diagram of a top view of the present utility model;
FIG. 4 is a partial schematic view of a brake structure of the present utility model;
FIG. 5 is a schematic view of another embodiment of the present utility model applied to a multi-functional drilling power tong;
FIG. 6 is a partial schematic view of the cleaning guide of the present utility model as applied to a multi-functional drilling power tong;
FIG. 7 is a schematic diagram of a device for pumping out a threaded oil in a multifunctional drilling power tong;
FIG. 8 is a schematic view of a portion of the construction of the present utility model of FIG. 5 as applied to a multi-functional drilling power tong;
fig. 9 is a schematic diagram of the operation of the present utility model applied to a multifunctional drilling power tong screw oil spraying device.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a clamp head disc type braking device of a power tongs, which is applied to a multifunctional drilling power tongs, and specifically comprises: the power tong comprises a power tong body 1, a drilling tool cleaning guide device 2, a screw thread oil spraying device 4 and a tong head disc type braking device 3, wherein the tong head disc type braking device 3 is fixedly connected with a tong head of the power tong body 1, the drilling tool cleaning guide device is arranged above the tong head of the power tong body 1, the screw thread oil spraying device is fixed below the drilling tool cleaning guide device 2, and the axle center of the drilling tool cleaning guide device 2 and the axle center of the tong head of the power tong body 1 are coaxially arranged.
As shown in fig. 2, the caliper disc brake apparatus 3 includes a brake disc 31, a floating body 32, a disc brake assembly, a brake ring 33, and a brake cylinder 34, the brake ring 33 is sleeved on the brake disc 31, and the disc brake assembly includes: the inner cavity of the brake disc 31 is sleeved on the outer circumferential surface of the floating body and is positioned in a gap between the upper disc brake ring 35 and the lower disc brake ring 36, the lower disc brake ring 36 and the upper disc brake ring 35 are fixedly connected through bolts, the brake cylinder 34 is used for driving the brake ring 33 to brake, the lower disc brake ring 36 is fixedly connected to a shell at the front end of the power tongs body, and the cylinder body of the brake cylinder 34 is fixedly connected to the upper disc brake ring 35.
As shown in fig. 3-4, the caliper disc brake device 3 further includes a dynamic friction plate 37 and a static friction plate 38, the static friction plate 38 is fixedly arranged on the upper plane of the disc brake lower ring 36, the friction plate 37 is arranged on the lower plane of the disc brake upper ring 35, the piston rod head of the brake cylinder is connected with the dynamic friction plate, and the brake cylinder is used for driving the piston rod to extend out after ventilation so as to compress the dynamic friction plate on the brake ring. In use, when the brake cylinder 34 is not vented, the piston of the brake cylinder 34 is in a retracted state, at which time the dynamic friction plate 37 is separated from the brake ring 33, and the brake ring 33 and the brake disc 31 rotate together with the float body 32, and no change in relative position can be made.
Therefore, the application adopts disc braking, changes the band braking mode of the traditional power tongs, drives the braking ring 33 to rotate together through the braking disc 31, and ascends or descends along the sliding groove in the braking ring 33. When the brake cylinder 34 is ventilated, the piston rod of the brake cylinder 34 extends out, so that the movable friction plate 37 is pressed on the brake ring 33 and is in contact with the static friction plate 38, the friction force prevents the brake ring 33 from rotating, and the brake ring 33 is sleeved on the brake disc 1 through the sliding groove, so that the rotation of the brake disc 31 is correspondingly prevented. Thus, with this structure, the rotation of the brake disc 31 is prevented while the brake disc 31 and the floating body 32 are relatively rotated, so that the clip head is clamped uphill; when the floating body 32 continues to rotate, the rotating torque of the floating body 32 overcomes the braking force of the friction plate, so that the brake disc 31 and the floating body 32 are driven to synchronously rotate together, and the continuous turnbuckle of the clamp head is realized.
As a more preferable implementation manner, as shown in fig. 5, the drill cleaning guide device 2 in this embodiment is a hollow conical structure with a wide top and a narrow bottom, the hollow conical structure of the drill cleaning guide device 2 is connected with a compressed air source or a steam source of a drilling machine, a plurality of blowholes 21 are formed on an inner conical surface of the drill cleaning guide device 2, the drill cleaning guide device 2 is connected with an opening and closing driving mechanism 22, the opening and closing driving mechanism 22 is used for driving the drill cleaning guide device 2 to perform opening or closing movement, and the interior of the screw oil spraying device 4 is of a cavity structure.
As a more preferable implementation manner, as shown in fig. 6, the drill cleaning guiding device 2 of the present application is a hollow conical structure composed of a left opening and closing frame 23 and a right opening and closing frame 24, the opening and closing driving mechanism 22 includes an opening and closing driving cylinder 221, a left synchronizing wheel 222 and a right synchronizing wheel 223, the left opening and closing frame 23 is connected with the left synchronizing wheel 222, the right opening and closing frame 24 is connected with the right synchronizing wheel 223, one end of the opening and closing driving cylinder 221 is connected with the left opening and closing frame 23 through an opening and closing left hinge pin 25, and the other end is connected with the right opening and closing frame 24 through an opening and closing right hinge pin 26. The open-close driving mechanism 22 further includes a left hinge pin 27, a right hinge pin 28, and a bracket 29, the left synchronizing wheel 222 is hinged to the bracket 29 through the left hinge pin 27, and the right synchronizing wheel 223 is hinged to the bracket 39 through the right hinge pin 28.
Thus, in this embodiment, when the rod chamber of the opening and closing cylinder is ventilated, the opening and closing cylinder is retracted, and the left opening and closing frame and the right opening and closing frame are rotated around the left and right hinge pins, respectively, until the left opening and closing frame and the right opening and closing frame are closed. In this application, drilling tool 6 is placed in the through-hole of being synthesized by left opening and shutting frame 23 and right opening and shutting frame 24, and during the cleanness, left opening and shutting frame, right opening and shutting frame are closed, and drilling tool cleaning guider laminating drilling tool, the through-hole that left opening and shutting frame 23 and right opening and shutting frame 24 are synthesized guides the drilling tool to align, and the clean hole blowout high pressure air or steam on the interior conical surface of cavity toper structure blows clean filth on the drilling tool screw thread. Thus, the opening and closing driving mechanism 22 in the present application ensures that the left and right opening and closing frames move in opposite directions at the same speed by adopting the cooperation of the left and right synchronizing gears.
As shown in the figure, the screw thread oil spraying device 4 comprises an oil spraying ring 41 fixedly arranged below the drilling tool cleaning guide device 2, the drilling tool cleaning guide device 2 and the screw thread oil spraying device 4 are coaxial, the inside of the oil spraying ring is of a cavity structure, a plurality of oil spraying through holes 42 are formed in the inner ring surface of the oil spraying ring, and an oil injection hole and a compressed air inlet hole are formed in the outer ring surface of the oil spraying ring. When the drilling tool is continuously lowered from the drilling tool cleaning guide device to the screw thread oil spraying device 4, the drilling tool cleaning guide device stops blowing, and the screw thread oil spraying device 4 starts grease injection. Specifically, the screw thread oil spraying device 4 blows air from a compressed air inlet hole, and the screw thread grease is blown out from the oiling through hole of the inner ring surface of the screw thread oil spraying device 4 to the screw thread of the drilling tool, so that the grease coating operation is completed.
To the screw oil spraying device 4, a screw oil pump-out device 5 is connected, and the screw oil pump-out device 5 includes: the screw thread oil cylinder 51, the pneumatic grease pump 52 and the screw thread oil conveying pipe 54, the screw thread oil cylinder 51 is fixedly arranged on a shell of the power tongs through the mounting bracket 57, a heating pipe is spirally wound on the outer surface of the screw thread oil cylinder 51, the pneumatic grease pump 52 is connected to the upper end of the screw thread oil cylinder 51, the screw thread oil conveying pipe 54 is arranged on the pneumatic grease pump 52, the other end of the screw thread oil conveying pipe 54 is conveyed into an inner cavity of the screw thread oil spraying device, and the compressed air pipe 58 is further arranged on the pneumatic grease pump 52.
As a preferred implementation, as shown in fig. 7-9, the screw oil pump device 5 further includes a pneumatic control valve 55, where the pneumatic control valve 55 is connected to the pneumatic grease pump 52 by a pneumatic pipeline, and the pneumatic control valve 55 is connected to the oil injection ring 41 by a pneumatic pipeline, and the pneumatic grease pump 52 sucks screw oil from the screw oil cylinder 51 and delivers the screw oil to the cavity of the oil injection ring 41 through an oil pipe. When the drilling tool continues to be lowered to the screw oil spraying device 4, one side of the pneumatic control valve 55 acts, compressed air enters from the compressed air pipe 58, then the compressed air is conveyed to the pneumatic grease pump from one side of the pneumatic control valve, the pneumatic grease pump works, screw oil is extracted from the screw oil cylinder and conveyed into the cavity of the oil injection ring through the oil pipe, and after a certain period of work, the pneumatic grease pump stops working. The pneumatic control valve is switched to the other side, compressed air is conveyed to the oil injection ring from the other side of the pneumatic control valve, and after the compressed air splashes the screw thread oil stored in the cavity of the oil injection ring from the oil coating through hole on the inner ring surface of the oil injection ring to spray the screw thread of the drilling tool, the air supply is stopped, so that the greasing operation is completed.
Further, as shown in fig. 8, the device further comprises a height adjusting mechanism 7, the height adjusting mechanism 7 comprises an upgrade case frame 71 and a lifting cylinder 72, the upgrade case frame 71 is fixed on a power tongs shell, a cylinder body of the lifting cylinder 72 is fixed on the upgrade case frame 71, a support is in sliding connection with the upgrade case frame 71, a telescopic rod of the lifting cylinder 72 is fixedly connected with a support 29 in the drilling tool cleaning guide device 2, and the height adjusting mechanism is used for adjusting the working heights of the drilling tool cleaning guide device 2 and the screw oil spraying device 4. And the front side surface of the drilling tool cleaning guide device is fixedly provided with an opening and closing handle. Thus, when the drilling tool cleaning guide device needs to be manually opened, the handle can be manually held for opening.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. A head-disk brake device for a power tongs, comprising: the power tongs shell casing, brake disc (31), floating body (32), disc brake subassembly, braking ring (33) and braking cylinder (34), braking ring (33) cover is established on brake disc (31), the disc brake subassembly includes: the inner cavity of the brake disc (31) is sleeved on the outer circumferential surface of the floating body and is positioned between the upper disc brake ring (35) and the lower disc brake ring (36), the brake cylinder (34) is used for driving the brake ring to brake, and the lower disc brake ring (36) is fixedly connected to the shell of the power tongs.
2. A head disc brake apparatus for a power tong as recited in claim 1, wherein: the lower plane of the disc brake upper ring (35) is provided with a dynamic friction plate (37), the head of a piston rod of the brake cylinder (34) is connected with the dynamic friction plate (37), and the brake cylinder is used for driving the piston rod to extend out after ventilation so as to compress the dynamic friction plate (37) on the brake ring.
3. A head disc brake apparatus for a power tong as recited in claim 1, wherein: the upper plane of the disc brake lower ring (36) is provided with a static friction plate (38).
4. A calliper disc brake apparatus for a power tong according to claim 2, wherein the cylinder body of the brake cylinder (34) is fixedly connected to the disc brake upper ring (35).
5. A power tong head disc brake device according to claim 3, characterized in that the lower disc brake ring (36) and the upper disc brake ring (35) are fixedly connected by means of bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321890925.9U CN220748870U (en) | 2023-07-18 | 2023-07-18 | Pliers head disc type braking device of power tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321890925.9U CN220748870U (en) | 2023-07-18 | 2023-07-18 | Pliers head disc type braking device of power tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220748870U true CN220748870U (en) | 2024-04-09 |
Family
ID=90554150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321890925.9U Active CN220748870U (en) | 2023-07-18 | 2023-07-18 | Pliers head disc type braking device of power tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220748870U (en) |
-
2023
- 2023-07-18 CN CN202321890925.9U patent/CN220748870U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |