CN203510057U - Pneumatic torque wrench - Google Patents
Pneumatic torque wrench Download PDFInfo
- Publication number
- CN203510057U CN203510057U CN201320649268.9U CN201320649268U CN203510057U CN 203510057 U CN203510057 U CN 203510057U CN 201320649268 U CN201320649268 U CN 201320649268U CN 203510057 U CN203510057 U CN 203510057U
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- China
- Prior art keywords
- square
- head
- motor device
- pneumatic motor
- rotor
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- Expired - Fee Related
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a pneumatic torque wrench, comprising a head part and a handle, wherein the head part is fixed at one end of the handle, the head part comprises a pneumatic motor device and a gear device, the front end of the pneumatic motor device is connected with the gear device, a cylinder is fixedly arranged in the motor chamber of the pneumatic motor device, the cylinder is movably connected with a rotor, a plurality of blades are fixedly arranged on the rotor, an annular gear is fixedly arranged in the cavity of the gear device, the annular gear is internally engaged with a plurality of planet gears, and the plurality of planet gears are engaged with one another, the plurality of planet gears are fixedly connected with one end of a square-head shaft, the other end of the square-end shaft is a square-head connecting part, and the square-head shaft is connected with the output shaft of the rotor. The pneumatic torque wrench is provided with the pneumatic motor device on basis of a torque wrench with fixed torsion, transmits the output power of the pneumatic motor device through the gear device, and automatically locks a threaded fastener through the pneumatic motor device, so that the work efficiency is improved.
Description
Technical field
The utility model relates to a kind of torque wrench, is specifically related to a kind of pneumatic type torque wrench.
Background technology
Torque wrench is also torque spanner, torque spanner or torque spanner.Moment is exactly the product of power and distance, when the threaded fasteners such as holding screw, bolt, nut, needs to control the moment size applying, to guarantee screw threads for fastening and to be unlikely to destroy because moment is excessive screw thread, so operate with torque wrench.
Existing torque wrench as shown in Figure 1, comprises ratchet pawl head 31, handle 32.It is preset torque spanner, by being arranged at the spring assembly at handle 32 positions, presets certain value as the torque value upper limit.When the moment of torsion applying reaches this preset value, spanner can send " Ka Ta " sound or spanner junction bending one angle, and just representative is fastening not afterburning again for this.
The torque wrench of this structure in use needs both hands to pull back and forth spanner, in this process, both consumes one's strength, and loses time again.And torque wrench is less than preset value and can ring, so really use the time of torque spanner, be exactly the last value of reading.Yet the early stage of locking screw securing member is comparatively loaded down with trivial details.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of pneumatic type torque wrench, and it can be increased work efficiency.
For solving the problems of the technologies described above, the technical solution of the utility model pneumatic type torque wrench is:
Between the end face of the head shell 202 of described geared system and the housing 106 of Pneumatic motor device, be provided with sealing gasket 201.
One end of described ratchet pawl 210 is fixedly installed positive and negative adjusting device 209, and positive and negative adjusting device 209 is for regulating the engagement direction of ratchet pawl 210 and square head shaft 206 circumferential gears.
The technique effect that the utility model can reach is:
The utility model is provided with Pneumatic motor device on the basis of determining torsion torque wrench, and by geared system, transmit the outputting power of Pneumatic motor device, by Pneumatic motor device, being automatically locked in advance certain value, then by ratchet pawl locking screw securing member, thereby can increase work efficiency.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the schematic diagram of prior art torque wrench;
Fig. 2 is the schematic diagram of the utility model pneumatic type torque wrench;
Fig. 3 is the schematic diagram of Pneumatic motor device of the present utility model;
Fig. 4 is the schematic diagram of geared system of the present utility model.
Description of reference numerals in figure:
1 is head, and 2 is handle,
3 is tracheae,
101 is bearing, and 102 is bonnet,
103 is rotor, and 104 is blade,
105 is cylinder, and 106 is housing,
107 is protecgulum, and 108 is bearing,
109 is adapter,
201 is sealing gasket, and 202 is head shell,
203 is rim gear wheel, and 204 is pad,
205 is planetary gear, and 206 is square head shaft,
207 is lid, and 208 is screw,
209 is positive and negative adjusting knob, and 210 is ratchet pawl,
31 is ratchet pawl head, and 32 is handle.
The specific embodiment
As shown in Figure 2, the utility model pneumatic type torque wrench, comprises head 1, handle 2, and head 1 is fixedly installed on one end of handle 2; Head 1 is provided with tracheae 3;
As shown in Figure 3, Pneumatic motor device comprises cylinder 105, and cylinder 105 is fixedly installed in housing 106; The front end of cylinder 105 is provided with protecgulum 107, and the rear end of cylinder 105 is provided with bonnet 102; In cylinder 105, be provided with rotor 103, cylinder 105 is flexibly connected rotor 103 by two bearings 101,108, is fixedly installed a plurality of blades 104 on rotor 103; Cylinder 105 is provided with cylinder back cover 102;
As shown in Figure 4, geared system comprises head shell 202, and head shell 202 is fixedly connected with lid 207 by a plurality of screws 208, and head shell 202 forms cavity with lid 207; In cavity, be fixedly installed rim gear wheel 203, rim gear wheel 203 and three interior engagements of planetary gear 205, three planetary gears 205 are meshed with one end (this end of rotor 103 is provided with spline) of rotor 103 respectively; Three planetary gears 205 are fixedly connected with one end of square head shaft 206, and the other end of square head shaft 206 is square toes connecting portion; Square head shaft 206 is connected with transmitting torque with rotor 103 by a plurality of planetary gears 205, and the square toes connecting portion of square head shaft 206 stretches out cavity, for being connected with threaded fastener;
Between the end face of rim gear wheel 203 and square head shaft 206, be provided with pad 204;
Between the end face of the head shell 202 of geared system and the housing 106 of Pneumatic motor device, be provided with sealing gasket 201.
One end of ratchet pawl 210 is fixedly installed resilient positive and negative adjusting device 209, and positive and negative adjusting device 209 is for regulating the engagement direction of ratchet pawl 210 and square head shaft 206 circumferential gears.
Operation principle of the present utility model is as follows:
Gas enters motor chamber through tracheae 3, and band moving vane 104 rotates, blade 104 rotor driven 103 rotations; The output shaft of rotor 103 drives square head shaft 206 rotations, thereby the outputting power of Pneumatic motor device is passed to square head shaft 206, and finally the square toes connecting portion by square head shaft 206 drives threaded fastener to rotate.
Claims (3)
1. a pneumatic type torque wrench, is characterized in that: comprise head (1), handle (2), head (1) is fixedly installed on one end of handle (2); Head (1) comprises Pneumatic motor device and geared system, the front end connection teeth wheel apparatus of Pneumatic motor device;
Pneumatic motor device comprises cylinder (105), and cylinder (105) is fixedly installed in housing (106); In cylinder (105), be provided with rotor (103), on rotor (103), be fixedly installed a plurality of blades (104); Housing (106) connects one end of tracheae (3), and tracheae (3) is used to cylinder (105) that power source is provided;
Geared system comprises head shell (202), and head shell (202) is fixedly connected with lid (207), and head shell (202) forms cavity with lid (207); In cavity, be fixedly installed rim gear wheel (203), rim gear wheel (203) and the interior engagement of a plurality of planetary gears (205), a plurality of planetary gears (205) are meshed with one end of rotor (103) respectively; A plurality of planetary gears (205) are fixedly connected with one end of square head shaft (206), and the other end of square head shaft (206) is square toes connecting portion; Square head shaft (206) is connected with transmitting torque with rotor (103) by a plurality of planetary gears (205), and the square toes connecting portion of square head shaft (206) stretches out cavity, for being connected with threaded fastener;
Square head shaft (206) be circumferentially provided with gear, the gear of square head shaft (206) is meshed with ratchet pawl (210); Ratchet pawl (210) is for locking screw securing member after being locked into certain value in advance at Pneumatic motor device.
2. pneumatic type torque wrench according to claim 1, is characterized in that: between the end face of the housing (106) of the head shell of described geared system (202) and Pneumatic motor device, be provided with sealing gasket (201).
3. pneumatic type torque wrench according to claim 1, it is characterized in that: one end of described ratchet pawl (210) is fixedly installed positive and negative adjusting device (209), positive and negative adjusting device (209) is for regulating the circumferentially engagement direction of gear of ratchet pawl (210) and square head shaft (206).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320649268.9U CN203510057U (en) | 2013-10-22 | 2013-10-22 | Pneumatic torque wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320649268.9U CN203510057U (en) | 2013-10-22 | 2013-10-22 | Pneumatic torque wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203510057U true CN203510057U (en) | 2014-04-02 |
Family
ID=50369039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320649268.9U Expired - Fee Related CN203510057U (en) | 2013-10-22 | 2013-10-22 | Pneumatic torque wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203510057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522243A (en) * | 2013-10-22 | 2014-01-22 | 浙江荣鹏气动工具有限公司 | Pneumatic type torque wrench |
-
2013
- 2013-10-22 CN CN201320649268.9U patent/CN203510057U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522243A (en) * | 2013-10-22 | 2014-01-22 | 浙江荣鹏气动工具有限公司 | Pneumatic type torque wrench |
| CN103522243B (en) * | 2013-10-22 | 2015-04-08 | 浙江荣鹏气动工具有限公司 | Pneumatic type torque wrench |
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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: 20140402 Termination date: 20161022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |