CN2532228Y - Power tongs clamping mechanism - Google Patents
Power tongs clamping mechanism Download PDFInfo
- Publication number
- CN2532228Y CN2532228Y CN 02218863 CN02218863U CN2532228Y CN 2532228 Y CN2532228 Y CN 2532228Y CN 02218863 CN02218863 CN 02218863 CN 02218863 U CN02218863 U CN 02218863U CN 2532228 Y CN2532228 Y CN 2532228Y
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- CN
- China
- Prior art keywords
- pipe
- utility
- model
- chain
- slide block
- 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
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Abstract
The utility model relates to a power tongs clamping mechanism. Currently the power tongs claming mechanism in the market clamps a pipe mainly by two tooth blocks, causing the pipe to be damaged by gnawing or uneven stress on. The utility model pushes a twisted necklace by a chain wheel for ensuring the twisted necklace to be circled around the pipe for one circumference and then to form multi-point contact clamping the pipe, so that the clamped pipe is mounted and dismounted under the condition of even stress. The utility model has the advantages of reasonable design, convenient operation, even stress on the clamped pipe and no damage produced.
Description
The utility model relates to a kind of Power Tong clamp mechanism.
At present, widely used Power Tong on the oil field, its clamp mechanism has damage largely to pipeline, causes unnecessary loss.These clamp mechanism mainly drive the ramp rotation by the rotation of opening gear, promote two block teeth clamping tubes by ramp compressing roller.Because of clamping tube mainly relies on the radial pressure of two block teeth, and have only two places of two block teeth positions to contact, so easily produce elastic deformation even damage pipe by pressure, the tooth of block teeth can chew pipe simultaneously, causes human and material resources and economic loss to Petroleum Production.Thereby people urgently wish to have a kind of novel Power Tong clamp mechanism to come out.
The purpose of this utility model is to provide a kind of Power Tong clamp mechanism.
The utility model is achieved through the following technical solutions, it comprises: sloping braces, bearing pin, guide, twisted strip sheet, turn round formations such as chain shelves, jaw, jaw plate frame, sprocket wheel, sprocket shaft, slide block, slide block slot, opening gear, two slide blocks are separately positioned in two slide block slots, two slide block slots are arranged on the jaw, turn round chain shelves, bearing pin, guide and connect to half garden shape by the twisted strip sheet and turn round chain.Turn round the chain shelves and be located at the two ends of turning round chain, two sprocket wheels are fixed on the jaw symmetrically by sprocket shaft, and jaw is arranged on the jaw plate frame.
The utlity model has advantages such as reasonable in design, easy to use, folded pipe fitting is stressed evenly, not damaged.
The utility model is described in further detail below in conjunction with accompanying drawing:
Accompanying drawing 1 is the total assembling structure half sectional view of the utility model.
Accompanying drawing 2 is turned round chain releasing orientation schematic diagram in the utility model;
Accompanying drawing 3 is turned round chain clamped condition schematic diagram in the utility model.
In the accompanying drawing, 1 is that sloping braces, 2,5 is that bearing pin, 3 is that twisted strip sheet, 4 is that guide, 6 is that jaw, 7 is that sprocket wheel, 8 is that jaw plate frame, 9 is that opening gear, 10 is that sprocket wheel uranium, 11 is that slide block, 12 is that slide block slot, 13 is for turning round the chain shelves.
As shown in drawings, constitute two and half garden shapes and turn round chain by turning round chain shelves 13, bearing pin 5, guide 4, twisted strip sheet 3, turn round the chain two ends and be respectively equipped with and turn round chain shelves 13, slide block 11 places in the slide block slot 12.Starter motor makes the rotation of opening gear 9 clockwise directions, driving sloping braces 1 turns round clockwise, bearing pin 2 drives two sprocket wheels 7 that are fixed on the sloping braces 1 clockwise rotate, two sprocket wheels 7 promote bearing pins 5 makes two to turn round chain and rotate counterclockwise, two turn round chain separately the chain shelves 13 of turning round of an end drive a slide block 11 that is arranged in the slide block slot 12 respectively and do motion counterclockwise, two slide blocks 11 slide in slide block slot 12 as Fig. 3 position and arrive slide block slot 12 1 ends, can not continue to slide, a back end of turning round chain this moment is turned round chain shelves 13 and stopped by slide block 11 and can not continue motion, that turns round the last end of chain turns round chain shelves 13 and slide block 11 relative fixed, turns round the last end of chain and continues movable.At this moment, sprocket wheel 7 is just turned round chain movable end engagement (as shown in Figure 3) with another.Being rotated further of sprocket wheel 7, make two last ends of turning round chain continue motion, article two, turn round chain and form a pair of rotation couple, contact with the oil pipe multiple spot, the result turns round chain 9 and tightly binds round on oil pipe, turn round the side that the twisted strip sheet 3 on the chain contacts with oil pipe and be designed to grind the shape flank of tooth, the frictional force that has guaranteed to turn round chain and oil pipe is enough, when being rotated further opening gear 9, because of the relative position of each parts in the Power Tong clamp mechanism shown in Figure 1 can not change, so extraneous motor can only make whole Power Tong clamp mechanism rotate together with oil pipe by opening gear 9.If starter motor is moved opening gear 9 and said process in the other direction, the then all counter motions of each parts in the said process, the result turns round chain still to drive oil pipe backward rotation together behind the banding oil pipe.So motor makes opening gear 9 to rotating clockwise or counterclockwise, by Power Tong clamp mechanism of the present utility model realized oil pipe clockwise or rotate counterclockwise, thereby the real loading and unloading of oil pipe.
Claims (2)
1, a kind of Power Tong clamp mechanism, it comprises opening gear (9), sloping braces (1), jaw (6), jaw plate frame (8), sprocket shaft formations such as (10), it is characterized in that jaw (6) is provided with slide block slot (12), slide block (11), sprocket wheel (7), turns round chain and be provided with bearing pin (5), twisted strip sheet (3), turn round chain shelves (13).
2, a kind of Power Tong clamp mechanism according to claim 1, its feature is that also sloping braces (1) is provided with bearing pin (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218863 CN2532228Y (en) | 2002-02-07 | 2002-02-07 | Power tongs clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218863 CN2532228Y (en) | 2002-02-07 | 2002-02-07 | Power tongs clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2532228Y true CN2532228Y (en) | 2003-01-22 |
Family
ID=33697450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02218863 Expired - Fee Related CN2532228Y (en) | 2002-02-07 | 2002-02-07 | Power tongs clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2532228Y (en) |
-
2002
- 2002-02-07 CN CN 02218863 patent/CN2532228Y/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 |