CN2159449Y - Reverse-proof mechanism of rotary table - Google Patents
Reverse-proof mechanism of rotary table Download PDFInfo
- Publication number
- CN2159449Y CN2159449Y CN 93212340 CN93212340U CN2159449Y CN 2159449 Y CN2159449 Y CN 2159449Y CN 93212340 CN93212340 CN 93212340 CN 93212340 U CN93212340 U CN 93212340U CN 2159449 Y CN2159449 Y CN 2159449Y
- Authority
- CN
- China
- Prior art keywords
- brake
- rotating disk
- sprocket wheel
- rotary table
- reverse
- 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
Links
Landscapes
- Gear Transmission (AREA)
Abstract
The utility model relates to a reverse-proof mechanism of a rotary table. In the working process of cut thread, fishing and side tracking of a workover rig, because the torsional elastic deformation of drilling tools, the rotary table rotates inversely after the kinetic moment is removed, and mechanical damaged accidents of transmission components occur frequently. After the utility model is adopted, the occurrence of the accidents can be prevented effectively, and the loss can be avoided.
Description
The utility model belongs to mechanical engineering field, is particularly useful on the workover rig.
Rotating disk is the critical component of well workover in operation process such as thread making, salvaging, sidetracking, the power of motor changes tool by the rotation driving of rotating disk and reaches purposes such as sidetracking or thread making, because well depth is generally more than the km, cause the drilling tool torsional deflection very big, the rotating disk kinetic moment is in case remove, certainly will cause the rotating disk counter-rotating by drilling tool elastic deformation bounce-back return, this transient speed is quite high, thereby causes the mechanical destruction of power-transmitting part.
The purpose of the utility model is to design a kind of rotating disk anti-reverse mechanism, is used for preventing the rotating disk counter-rotating when rotating disk kinetic moment is removed, thereby prevents the mechanical destruction of power-transmitting part.
The utility model is to realize its purpose like this.
A kind of rotating disk anti-reverse mechanism, by power transmission shaft flange (1), the input flange (2) coaxial with power transmission shaft flange (1), input sprocket wheel (3), the output chain gear (7) that is connected by chain with input sprocket wheel (3), form with the rotating disk (8) that output sprocket wheel (7) is coaxial, wherein input sprocket wheel (3) is installed in the rotating disk drive chain case (4) with output sprocket wheel (7), it is characterized in that: on the axle of input sprocket wheel (3), brake gear (5) is arranged, brake gear (5) is made up of brake cylinder (6) and brake wheel assembly, the brake wheel assembly is by brake wheel (3 ') brake ribbon (5 '), and stop watt (6 ') constitutes.
Fig. 1 is the utility model overall pattern.
Fig. 2 is the utility model brake wheel assembly figure.
Fig. 3 is a brake wheel assembly sectional drawing.
Wherein: (1) power transmission shaft flange, (2) input flange, (3) input sprocket wheel, (4) rotating disk drive chain case, (5) brake gear, (6) brake cylinder, (7) output sprocket wheel, (8) rotating disk, (1 ') brake spacer, 2 ' positioning stud, 3 ' brake wheel, 4 ' rivet, 5 ' brake ribbon, 6 ' stops watt, 7 ' bearing pin, 8 ' wearing piece, (10) pin, (13) pull bar cam, (14) pin bearing.
Below in conjunction with accompanying drawing the utility model is further described.
Afterbody at rotating disk drive chain case power shaft is equipped with the rotating disk anti-reverse mechanism, in workover rig thread making, salvaging, sidetracking, power is passed to input flange (2), input sprocket wheel (3) from power transmission shaft flange (1), pass to output sprocket wheel (7) again, pass to rotating disk (8) by output sprocket wheel (7), thereby drive the drilling tool rotation, reach sidetracking, purposes such as thread making.After rotating disk (8) power is removed, owing to the drilling tool elastic deformation return that rebounds, above-mentioned action reversed, torque reaction is transferred on the power-transmitting part, cause mechanical damage, for preventing that this type of accident from taking place, when rotating disk (8) drives output, during the input sprocket counter-rotating, inflate to brake cylinder A mouth by one-way throttle valve, promote cylinder piston and move downward by gas control, thereby throw crank, make the brake ribbon 5 ' of brake gear (5), watt 6 ' brake wheel 3 ' of stopping is embraced the power shaft of rotating disk drive chain case, stops the rotating disk counter-rotating, after this release, gas control makes cylinder piston drive crank by three-position four-way valve again to the ventilation of B mouth and moves upward, the rotating disk anti-reverse mechanism is unclamped, guarantee working properly carrying out.
Through checking in oil well repairing operation is used, mixed this anti-reverse mechanism, do not find the mechanical destruction phenomenon of power-transmitting part, obtained good result of use.
Claims (2)
1, a kind of rotating disk anti-reverse mechanism, by power transmission shaft flange (1), input flange (2), the input sprocket wheel (3) coaxial with power transmission shaft flange (1), the output sprocket wheel (7) that is connected by chain with input sprocket wheel (3), form with the rotating disk (8) that output sprocket wheel (7) is coaxial, wherein input sprocket wheel (3) is installed in the rotating disk drive chain case (4) with output sprocket wheel (7), it is characterized in that: on the axle of input sprocket wheel (3) brake gear (5) is arranged.
2, rotating disk anti-reverse mechanism as claimed in claim 1 is characterized in that: brake gear (5) is made up of brake cylinder (6) and brake wheel assembly, and the brake wheel assembly is by brake wheel (3 ') brake ribbon (5 '), and stop watt (6 ') constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93212340 CN2159449Y (en) | 1993-05-06 | 1993-05-06 | Reverse-proof mechanism of rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93212340 CN2159449Y (en) | 1993-05-06 | 1993-05-06 | Reverse-proof mechanism of rotary table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2159449Y true CN2159449Y (en) | 1994-03-23 |
Family
ID=33793712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93212340 Expired - Fee Related CN2159449Y (en) | 1993-05-06 | 1993-05-06 | Reverse-proof mechanism of rotary table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2159449Y (en) |
-
1993
- 1993-05-06 CN CN 93212340 patent/CN2159449Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |