CN202780967U - Reaction mechanism of electric straight wrench with fixed torsion - Google Patents
Reaction mechanism of electric straight wrench with fixed torsion Download PDFInfo
- Publication number
- CN202780967U CN202780967U CN 201220365885 CN201220365885U CN202780967U CN 202780967 U CN202780967 U CN 202780967U CN 201220365885 CN201220365885 CN 201220365885 CN 201220365885 U CN201220365885 U CN 201220365885U CN 202780967 U CN202780967 U CN 202780967U
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- China
- Prior art keywords
- counter
- torque wrench
- constant torque
- straight type
- type electric
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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 - Lifetime
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model provides a reaction mechanism of an electric straight wrench with fixed torsion. The technical scheme includes that the reaction mechanism of the electric straight wrench with the fixed torsion comprises a planetary transmission device, a reaction arm, a sleeve and an inner gear; a connecting device is arranged at the joint between one end of the planetary transmission device and a power device, and comprises a connecting plate, a stopper and a coil spring retainer ring. According to the technical scheme, problems about rotation of a work head of the electric straight wrench with fixed torsion are solved, and the reaction mechanism is simple in structure and low in cost.
Description
Technical field
The utility model relates to the electric tool technical field, especially relates to a kind of straight type electric constant torque wrench counter-force mechanism.
Background technology
Electric constant torque wrench belongs to the electromechanical integration instrument, is mainly used in the Steel Structure Installation industry, is used for fixing of high-strength bolt, during installation bolt is wanted just tight rear tight eventually first, and electric constant torque wrench tights a bolt or the counter-force of nut must overcome by counter-force arm.Prior art is, electric constant torque wrench is finished by manually-operated, its shortcoming is, take when the workman constructs and carve the riding position of noting counter-force arm, if the position is improper, then counter-force arm need to be rotated to seek and added the force during machine run, can drive whole machine turns, the workman grasps incessantly easily, causes the accident or injures.There is hidden danger.Can lose time again if note riding position constantly, operation inconvenience is slowed down project progress.And a lot of small spaces must just can be constructed with straight type spanner.This is the existing weak point of prior art.
Summary of the invention
The purpose of this utility model is exactly for the existing deficiency of prior art, provides a kind of volume little, simple in structure, safe and reliable, a kind of straight type electric constant torque wrench counter-force mechanism that can the Automatic-searching counter-force arm strong point.The straight type electric constant torque wrench counter-force mechanism of this scheme, can alleviate the labour intensity of work, solve straight type electric constant torque wrench working head Rotation, both be elongated straight type, working head again can 360 ° of rotations, and is easy to operate, be more suitable for the operation construction in most of spaces, and safe and reliable, improved operating efficiency, reduced cost.
This programme is achieved by the following technical measures: include planetary driving device, counter-force arm, sleeve, internal gear, the characteristics of this programme are, an end and power set junction at described planetary driving device are provided with jockey, and described jockey includes terminal pad, baffle ring, disc spring back-up ring.Its objective is, can be axially with free rotation between working head and the counter-force arm.
Further improvement of the utility model has, and on the internal diameter of described internal gear one end, is provided with annular groove, and the external diameter of described disc spring back-up ring is put in the annular groove with described internal gear.
Further improvement of the utility model also has, and described disc spring back-up ring is slidingly connected on the external diameter of described baffle ring.
Further improvement of the utility model also has, and described baffle ring is connected in an end of described terminal pad.
Further improvement of the utility model also has, and the external diameter of described baffle ring and the internal diameter of described internal gear are slidingly connected.
Further improvement of the utility model also has, and the other end of described terminal pad and the power set described shift knob that is connected is arranged on the below of described controller.
Operation principle: after spanner starts, armature shaft connects by gear and level Four planet connecting band moving sleeve begins to rotate, sleeve has opposition when tighting a bolt (nut), reaction force passes to ring gear and counter-force arm by planetary gear, in the normal construction process, because bolt carried out pretension, so sleeve remains static during entry into service.Therefore counter-force arm begins to be rotated counterclockwise to seek and adds the force.After counter-force arm found the strong point, counter-force arm was fixed, and at this moment, sleeve begins to rotate tight a bolt (nut).Belong to prior art without the structure of describing in the utility model.
The beneficial effect of this programme can learn that according to the narration to such scheme owing to be provided with jockey in an end and the power set junction of described planetary driving device in this scheme, jockey includes terminal pad, baffle ring, disc spring back-up ring.Because internal gear is to be fixedly connected with counter-force arm, and be to be slidingly connected between the terminal pad, can not drive the terminal pad rotation so counter-force arm is rotated, also can the casing handle at rear not exerted an influence.Just need not constantly to note the riding position of counter-force arm when the workman constructs, counter-force arm can go searching to add the force by automatic rotation during machine run, and can not drive whole machine turns, has reduced the generation of accident, has improved operating efficiency.This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is apparent.
Description of drawings
Fig. 1 is the structural representation of the utility model specific embodiment, and Fig. 2 is the partial structurtes enlarged diagram.Among the figure, 1, sleeve, 2, counter-force arm, 3, internal gear, 4, sheathing, 5. baffle ring, 6. check ring, 7, terminal pad.8, front middle cover, 9, rear middle cover, 10, the motor part, 11, the handle control section, 12, armature shaft, 13, the primary centre wheel, 14, one-level planet section dress, 15, secondary planet section dress, 16, third-level planetary section dress, 17, level Four planet section dress, 18 bolts.
The specific embodiment
For clearly demonstrating the technical characterstic of this programme, below by a specific embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
Can find out by accompanying drawing, the straight type electric constant torque wrench counter-force mechanism of this programme, include planetary driving device, counter-force arm 2, sleeve 1, internal gear 3, an end and power set junction at planetary driving device are provided with jockey, and jockey includes terminal pad 7, baffle ring 5, disc spring back-up ring 6.Controller is arranged on the top of described handle.On the internal diameter of internal gear 3 one ends, be provided with annular groove, the external diameter of disc spring back-up ring 6 is put in the annular groove with internal gear 3.Disc spring back-up ring 6 is slidingly connected on the external diameter of described baffle ring 5.Baffle ring 5 is connected in an end of described terminal pad 7.The internal diameter of the external diameter of baffle ring 5 and described internal gear 3 is slidingly connected.The other end and the power set of terminal pad 7 are connected.
Certainly; above-mentioned explanation is not limitation of the utility model; the utility model also is not limited only to above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also belong to protection domain of the present utility model.
Claims (6)
1. straight type electric constant torque wrench counter-force mechanism, include planetary driving device, counter-force arm (2), sleeve (1), internal gear (3), it is characterized in that: an end and power set junction at described planetary driving device are provided with jockey, and described jockey includes terminal pad (7), baffle ring (5), disc spring back-up ring (6).
2. straight type electric constant torque wrench counter-force mechanism according to claim 1, it is characterized in that: on the internal diameter of described internal gear (3) one ends, be provided with annular groove, the external diameter of described disc spring back-up ring (6) places in the annular groove of described internal gear (3).
3. straight type electric constant torque wrench counter-force mechanism according to claim 1, it is characterized in that: described disc spring back-up ring (6) is slidingly connected on the external diameter of described baffle ring (5).
4. straight type electric constant torque wrench counter-force mechanism according to claim 1, it is characterized in that: described baffle ring (5) is connected in an end of described terminal pad (7).
5. straight type electric constant torque wrench counter-force mechanism according to claim 1, it is characterized in that: the internal diameter of the external diameter of described baffle ring (5) and described internal gear (3) is slidingly connected.
6. straight type electric constant torque wrench counter-force mechanism according to claim 1, it is characterized in that: the other end and the power set of described terminal pad (7) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220365885 CN202780967U (en) | 2012-07-27 | 2012-07-27 | Reaction mechanism of electric straight wrench with fixed torsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220365885 CN202780967U (en) | 2012-07-27 | 2012-07-27 | Reaction mechanism of electric straight wrench with fixed torsion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202780967U true CN202780967U (en) | 2013-03-13 |
Family
ID=47808301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220365885 Expired - Lifetime CN202780967U (en) | 2012-07-27 | 2012-07-27 | Reaction mechanism of electric straight wrench with fixed torsion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202780967U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669185A (en) * | 2015-03-09 | 2015-06-03 | 广西玉柴机器股份有限公司 | Sleeve capable of setting torque |
| CN109277798A (en) * | 2017-07-22 | 2019-01-29 | 青岛理工大学 | A kind of automatic screwing device and its application method |
| CN112847227A (en) * | 2020-12-31 | 2021-05-28 | 宁波赛维思机械有限公司 | Unload electronic torque wrench of power reversal formula |
-
2012
- 2012-07-27 CN CN 201220365885 patent/CN202780967U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669185A (en) * | 2015-03-09 | 2015-06-03 | 广西玉柴机器股份有限公司 | Sleeve capable of setting torque |
| CN104669185B (en) * | 2015-03-09 | 2016-04-27 | 广西玉柴机器股份有限公司 | The sleeve of moment can be determined |
| CN109277798A (en) * | 2017-07-22 | 2019-01-29 | 青岛理工大学 | A kind of automatic screwing device and its application method |
| CN112847227A (en) * | 2020-12-31 | 2021-05-28 | 宁波赛维思机械有限公司 | Unload electronic torque wrench of power reversal formula |
| CN112847227B (en) * | 2020-12-31 | 2022-05-17 | 宁波赛维思机械有限公司 | Unload electronic torque wrench of power reversal formula |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |