CN201685216U - Multiplying device for fastening large-torque bolt with small-range fixed-torque wrench - Google Patents
Multiplying device for fastening large-torque bolt with small-range fixed-torque wrench Download PDFInfo
- Publication number
- CN201685216U CN201685216U CN2010201604415U CN201020160441U CN201685216U CN 201685216 U CN201685216 U CN 201685216U CN 2010201604415 U CN2010201604415 U CN 2010201604415U CN 201020160441 U CN201020160441 U CN 201020160441U CN 201685216 U CN201685216 U CN 201685216U
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- Prior art keywords
- torque
- bolt
- torque wrench
- small
- socket
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- 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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model provides a multiplying device for fastening a large-torque bolt with a small-range fixed-torque wrench, and relates to the field of fastening bolts with fixed torque value. A nut socket is arranged at one end of a lengthening rod, and a square wedged socket is arranged at the other end. The large-torque bolt can be conveniently fastened according to designed torque value by disposing the nut socket and the square wedged socket at two ends of the lengthening rod and connecting with the small-range fixed-torque wrench with set torque value. The multiplying device is simple in structure, easy in material obtaining and simple in operation, and is economical and applicable.
Description
Technical field
The utility model relates to bolt and decides the fastening field of square value, the amplifying device of the fastening high pulling torque bolt of particularly a kind of a small amount of journey constant torque wrench.
Background technology
Water power construction industry has at home occurred in recent years such as various heavy construction equipments such as tower belt crane and supply line, cable machines, and these element of installation have adopted the above high pulling torque Bolt Connection of 4000 more Nm.Construction enterprises adopt the torque wrench of the little range of about 2000 Nm can't be directly fastening.Though the wide range constant torque wrench is arranged on the market, and price is more expensive, and the constant torque wrench utilization rate is not high, and therefore directly buying is uneconomical.
Summary of the invention
Technical problem to be solved in the utility model provides the amplifying device of the fastening high pulling torque bolt of a kind of a small amount of journey constant torque wrench, goes for utilizing the occasion of the fastening high pulling torque bolt of journey constant torque wrench in a small amount.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: the amplifying device of the fastening high pulling torque bolt of a kind of a small amount of journey constant torque wrench, extension bar one end is provided with ut socket, the other end side of being provided with cover of wedge tube.
The amplifying device of the fastening high pulling torque bolt of a kind of a small amount of journey constant torque wrench that the utility model provides, by ut socket and square cover of wedge tube are set at the extension bar two ends, link together with a small amount of journey constant torque wrench that sets torque value then, can be easily by the fastening high pulling torque bolt of torque value that designs.The utility model is simple in structure, it is easy, simple to operation, economic and practical to draw materials.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
In Fig. 1, the amplifying device of the fastening high pulling torque bolt of a kind of a small amount of journey constant torque wrench, extension bar 2 one ends are provided with ut socket 1, the other end side of being provided with cover of wedge tube 3.
Embodiment:
With the fastening design torque value of the AC2000 type torque wrench foundation bolt that is the M52 of 4060 Nm.Extension bar 2 adopts 2 channel-section steel butt welding to form, and is the steel alloy material according to M52 nut making ut socket 1 and square tenon sleeve 3, adopts machined to make, and ut socket 1 and square tenon sleeve 3 are welded on the two ends of extension bar 2 respectively.The length of extension bar 2 is 1030mm, torque wrench 4 self arm of force 820mm.During use according to formula:
T
1=L
1×T
2/(?L
1+L
2)
In the formula: T
1Torque value for torque wrench 4; L
1Arm of force value for torque wrench 4; L
2Arm of force value for extension bar 2; T
2Be the required torque value of fastening high pulling torque bolt.
Bring following formula into and get T
1Be the torque value of torque wrench 4:
0.82m×4060N·m/(1.03m＋0.82m)≈1800?N·m
The ut socket 1 of extension bar 2 one ends is nested on the M52 nut, the torque value of predetermined torque spanner 4 is 1800Nm, the square tenon of predetermined torque spanner 4 one ends inserts in the square cover of wedge tube 3 of extension bar 2 other ends, pull torque wrench 4 handles, after hearing that torque wrench 4 sends sound, bolt promptly reaches corresponding tightening torque value 4060Nm.
Claims (1)
1. amplifying device of the fastening high pulling torque bolt of journey constant torque wrench in a small amount, it is characterized in that: extension bar (2) one ends are provided with ut socket (1), the other end side of being provided with cover of wedge tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201604415U CN201685216U (en) | 2010-04-15 | 2010-04-15 | Multiplying device for fastening large-torque bolt with small-range fixed-torque wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201604415U CN201685216U (en) | 2010-04-15 | 2010-04-15 | Multiplying device for fastening large-torque bolt with small-range fixed-torque wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201685216U true CN201685216U (en) | 2010-12-29 |
Family
ID=43373505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201604415U Expired - Fee Related CN201685216U (en) | 2010-04-15 | 2010-04-15 | Multiplying device for fastening large-torque bolt with small-range fixed-torque wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201685216U (en) |
-
2010
- 2010-04-15 CN CN2010201604415U patent/CN201685216U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20180415 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |