CN215847906U

CN215847906U - Positive and negative pressure suction release fastener pneumatic torque tool

Info

Publication number: CN215847906U
Application number: CN202121905419.3U
Authority: CN
Inventors: 陈文杰; 马岩; 屈健
Original assignee: Xifei International Aviation Manufacturing Tianjin Co ltd
Current assignee: Xifei International Aviation Manufacturing Tianjin Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-02-18
Anticipated expiration: 2031-08-16

Abstract

The utility model relates to the technical field of pneumatic torque, and discloses a pneumatic torque tool with a positive-negative pressure adsorptive release fastener, which comprises a pneumatic wrench, wherein an air inlet pipe is fixedly inserted into the inner surface of the pneumatic wrench, a pneumatic motor is fixedly installed on the outer surface of the air inlet pipe, a starting switch is fixedly installed on the outer surface of the pneumatic motor, a pressing rod is movably connected to the outer surface of the pneumatic wrench, a first spring is fixedly welded to the outer surface of the pressing rod, and a T-shaped push rod is fixedly installed on the outer surface of the pressing rod. Drive T type push rod through promoting according to the depression bar and remove, T type push rod exerts an extrusion force to starting switch, opens the first axis of rotation of pneumatic motor drive and rotates, and the setting of bracing piece is according to the depression bar in order to support, avoids unexpected extrusion for according to the depression bar removal, exert the extrusion force to T type push rod, make pneumatic motor function, thereby reached certain guard action.

Description

Positive and negative pressure suction release fastener pneumatic torque tool

Technical Field

The utility model relates to the technical field of pneumatic torque, in particular to a pneumatic torque tool capable of absorbing and releasing a fastener by positive pressure and negative pressure.

Background

The pneumatic torque wrench is a torque wrench using a high-pressure air pump as a power source, and is characterized in that one or two powerful pneumatic motors are used for driving a torque multiplier with three or more layers of turnover gears, and the stable and continuous torque output of the pneumatic torque wrench enables the pneumatic torque wrench to be widely applied to torque control on various occasions with nuts and without nut connection.

The prior patent number is CN201320834251.0, the utility model relates to a pneumatic fixed torque wrench, a clutch component, a torque multiplier, a pneumatic engine and an air inlet valve are arranged in a wrench rod; the clutch assembly comprises a driver and a clutch; the front end of the driver is connected with the wrench head, the rear end of the driver is positioned in the cavity at the front end of the clutch, and the rear end of the clutch is connected with the pneumatic engine; a through cavity is formed in the clutch, a guide post is arranged on the outer wall of the cavity, a pin post is arranged behind the cavity, and a through hole is formed in the pin post; the clutch is sequentially sleeved with the connecting ring and the torque adjusting spring, the guide post can push the connecting ring to move backwards, and the connecting ring presses the pin post downwards to enable the through hole to be communicated with the cavity; a valve rod is arranged in the pneumatic engine, the front end of the valve rod extends into a cavity of the clutch and can abut against the pin column or penetrate through the through hole, and a valve plug is arranged at the rear end of the valve rod. After the moment of torsion reachd the default, the valve rod passes the through-hole and makes valve plug shutoff air inlet, in time accomplishes the automatic cutout of air supply, and then guarantees the accurate control output moment of torsion, and the pneumatic torque wrench who mentions in the current patent can only turn round tightly vertical bolt, and the bolt that can not adapt to many angles turns round tightly, can lead to work efficiency's reduction.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a pneumatic torque tool capable of absorbing and releasing a fastener by positive pressure and negative pressure, which aims to solve the problem that the pneumatic torque wrench mentioned in the background technology can only tighten a longitudinal bolt and cannot adapt to the tightening of bolts at a plurality of angles, so that the working efficiency is possibly reduced.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a pnematic moment of torsion instrument of adsorbable release fastener of positive and negative pressure, includes pneumatic spanner, pneumatic spanner's internal fixed surface inserts and is equipped with the intake pipe, the fixed surface of intake pipe installs pneumatic motor, pneumatic motor's fixed surface installs starting switch, pneumatic spanner's surface swing joint has the pressure pole, the fixed surface welding of pressure pole has first spring, the fixed surface who presses the pressure pole installs T type push rod, the fixed surface who presses the pressure pole installs square stopper, the internal surface swing joint who presses the pressure pole has the bracing piece, pneumatic spanner's internal fixed surface installs first axis of rotation.

Preferably, the outer surface of the pneumatic wrench is movably connected with an L-shaped steering box, the outer surface of the first rotating shaft is movably connected with a U-shaped frame, the inner surface of the L-shaped steering box is fixedly provided with a square stabilizing block, the outer surface of the U-shaped frame is fixedly provided with a first toothed bar, the outer surface of the first toothed bar is meshed with a second toothed bar, the outer surface of the L-shaped steering box is movably connected with a second rotating shaft, the inner surface of the pneumatic wrench is slidably connected with two sliding bars, the outer surfaces of the two sliding bars are fixedly provided with arc limiting blocks, the inner surface of the pneumatic wrench is fixedly welded with two second springs, the sliding bars are pressed to drive the arc limiting blocks to move, the L-shaped steering box is conveniently inserted into the outer surface of the first rotating shaft, then the sliding bars are loosened, and the arc limiting blocks are driven to be connected with the L-shaped steering box under the acting force of the second springs to achieve limiting effect, the first rotating shaft drives the first rack bar to rotate, the first rack bar drives the second rack bar to rotate, and the second rack bar drives the second rotating shaft to rotate, so that the purpose of changing the rotating direction is achieved.

Preferably, the outer surface of the T-shaped push rod is movably connected with the outer surface of the starting switch, the outer surface of the pneumatic wrench is fixedly welded with the outer surface of the first spring, the T-shaped push rod is connected with the starting switch to achieve the purpose of opening the switch, and the pneumatic wrench is connected with the first spring to achieve the effect of providing supporting force for the pressing rod.

Preferably, the surface of bracing piece and air wrench's surface swing joint, the surface of bracing piece and the surface swing joint of square stopper link to each other through bracing piece and air wrench and come to reach the purpose that the restriction pressure push rod moved down, and the bracing piece links to each other with square stopper and comes to reach the purpose that the restriction bracing piece removed.

Preferably, two the surface of arc stopper all turns to the internal surface swing joint of case with the L type, the surface of first ratch and the internal surface swing joint of square stable piece reach the purpose that the restriction L type turned to the case and remove through the setting that arc stopper turned to the case with the L type, and first ratch links to each other with square stable piece and reaches the purpose of stabilizing first ratch pivoted.

Preferably, two the surface of second spring respectively with the fixed surface welding of two arc stopper, two the surface of arc stopper all with pneumatic wrench's internal surface swing joint, link to each other with the arc stopper through the second spring and come to reach the purpose of extrusion arc stopper, the arc stopper links to each other with pneumatic wrench internal surface and comes to reach the purpose of stably moving the arc stopper.

Compared with the prior art, the utility model has the beneficial effects that:

1. this pnematic moment of torsion instrument of fastener is released in adsorbable of positive and negative pressure drives T type push rod through promoting to remove according to the depression bar, and T type push rod exerts an extrusion force to starting switch, opens pneumatic motor and drives first axis of rotation and rotate, and the setting of bracing piece is according to the depression bar in order to support, avoids unexpected extrusion for according to the depression bar removal, exert the extrusion force to T type push rod, make pneumatic motor function, thereby certain guard action has been reached.

2. This pnematic moment of torsion instrument of adsorbable release fastener of positive negative pressure drives the arc stopper through pressing down the slide bar and removes, conveniently turns to the case cover with the L type like this at the air wrench surface, loosens the slide bar, makes the arc stopper turn to the case with the L type and be connected under the effort of second spring, reaches a limiting displacement, and first rack bar drives the rotation of second rack bar to the purpose to the direction of rotation change has been reached.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic cross-sectional elevation view of the structure of the present invention;

FIG. 3 is a front cross-sectional schematic view of the L-shaped steering case of the present invention;

FIG. 4 is an enlarged view of the position A in FIG. 1 according to the present invention.

In the figure: 1. a pneumatic wrench; 2. an air inlet pipe; 3. a pneumatic motor; 4. starting a switch; 5. a pressing lever; 6. a first spring; 7. a T-shaped push rod; 8. a square limiting block; 9. a support bar; 10. a first rotating shaft; 11. an L-shaped steering box; 12. a U-shaped frame; 13. a square stabilization block; 14. a first rack bar; 15. a second rack bar; 16. a second rotating shaft; 17. a slide bar; 18. an arc-shaped limiting block; 19. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1-4:

example 1: through promoting to press the depression bar 5 to drive T type push rod 7 and remove, T type push rod 7 exerts an extrusion force to starting switch, opens pneumatic motor 3 and drives first axis of rotation 10 and rotate, and the setting of bracing piece 9 is in order to support to press the depression bar 5, avoids unexpected extrusion for press the depression bar 5 to remove, exert the extrusion force to T type push rod 7, make pneumatic motor 3 function, thereby certain guard action has been reached.

Example 2: the sliding rod 17 is pressed to drive the arc-shaped limiting block 18 to move, so that the L-shaped steering box 11 is conveniently sleeved on the outer surface of the pneumatic wrench 1, the sliding rod 17 is loosened, the arc-shaped limiting block 18 is connected with the L-shaped steering box 11 under the action force of the second spring 19, a limiting effect is achieved, the first toothed bar 14 drives the second toothed bar 15 to rotate, and the purpose of changing the rotating direction is achieved.

The model of the pneumatic motor 3 is MA3S358M, and the start switch 4 is a known prior art, which is not described herein.

The working principle is as follows: when the pneumatic torque tool with the fastener capable of being absorbed and released by positive and negative pressure is used, the air inlet pipe 2 is connected with an air pipe to provide power for the pneumatic motor 3, the supporting rod 9 is moved to push the pressing rod 5, the pressing rod 5 drives the T-shaped push rod 7 to move, the T-shaped push rod 7 extrudes the starting switch 4, the pneumatic motor 3 is opened, the pneumatic motor 3 drives the first rotating shaft 10 to rotate, thereby achieving the function of transmitting power, when the utility model is not needed to be used, the pressing rod 5 is loosened, a supporting force is exerted on the pressing rod 5 under the action of the first spring 6, so that the pressing rod 5 drives the T-shaped push rod 7 to move, make T type push rod 7 keep away from starting switch 4, remove bracing piece 9 for bracing piece 9 exerts a holding power to pressing down pole 5, avoids receiving external force extrusion to press down pole 5 to remove, makes air wrench 1 function, thereby causes unnecessary injury.

When the twisting direction needs to be changed, the L-shaped steering box 11 is sleeved on the first rotating shaft 10, the arc-shaped limiting block 18 is connected with the L-shaped steering box 11 to achieve the purpose of stabilizing the L-shaped steering box 11, the first rotating shaft 10 drives the U-shaped frame 12 to rotate, the U-shaped frame 12 drives the first rack bar 14 to rotate, the first rack bar 14 drives the second rack bar 15 to rotate, the second rack bar 15 drives the second rotating shaft 16 to rotate, the second rotating shaft 16 rotates to fix and tighten the bolt, when the L-shaped steering box 11 needs to be disassembled, the sliding rod 17 is pressed to drive the arc-shaped limiting block 18 to move, the L-shaped steering box 11 is conveniently disassembled, and the purpose of conveniently changing the rotating direction is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pnematic torque tool of fastener is adsorbed to positive negative pressure, includes air wrench (1), its characterized in that: the utility model discloses a pneumatic wrench, including pneumatic wrench (1), air intake pipe (2), the fixed surface of air intake pipe (2) is inserted and is equipped with pneumatic motor (3), the fixed surface of pneumatic motor (3) installs starting switch (4), the surface swing joint of pneumatic wrench (1) has pressure lever (5), the fixed surface welding of pressing lever (5) has first spring (6), the fixed surface of pressing lever (5) installs T type push rod (7), the fixed surface of pressing lever (5) installs square stopper (8), the internal surface swing joint of pressing lever (5) has bracing piece (9), the fixed surface of pneumatic wrench (1) installs first axis of rotation (10).

2. The positive and negative pressure suction releasable fastener pneumatic torque tool of claim 1, wherein: the surface swing joint of air wrench (1) has the L type to turn to case (11), the surface swing joint of first axis of rotation (10) has U type frame (12), the L type turns to the internal surface fixed mounting of case (11) and has square stable piece (13), the surface fixed mounting of U type frame (12) has first ratch (14), the surface meshing of first ratch (14) is connected with second ratch (15), the surface swing joint that the L type turned to case (11) has second axis of rotation (16), the internal surface sliding connection of air wrench (1) has two slide bars (17), two the equal fixed mounting in surface of slide bar (17) has arc stopper (18), and the internal surface fixed welding of air wrench (1) has two second springs (19).

3. The positive and negative pressure suction releasable fastener pneumatic torque tool of claim 1, wherein: the outer surface of the T-shaped push rod (7) is movably connected with the outer surface of the starting switch (4), and the outer surface of the pneumatic wrench (1) is fixedly welded with the outer surface of the first spring (6).

4. The positive and negative pressure suction releasable fastener pneumatic torque tool of claim 1, wherein: the outer surface of the supporting rod (9) is movably connected with the outer surface of the pneumatic wrench (1), and the outer surface of the supporting rod (9) is movably connected with the outer surface of the square limiting block (8).

5. The positive and negative pressure suction releasable fastener pneumatic torque tool of claim 1, wherein: the outer surfaces of the two arc-shaped limiting blocks (18) are movably connected with the inner surface of the L-shaped steering box (11), and the outer surface of the first rack bar (14) is movably connected with the inner surface of the square stabilizing block (13).

6. The positive and negative pressure suction releasable fastener pneumatic torque tool of claim 2, wherein: the outer surfaces of the two second springs (19) are fixedly welded with the outer surfaces of the two arc-shaped limiting blocks (18) respectively, and the outer surfaces of the two arc-shaped limiting blocks (18) are movably connected with the inner surface of the pneumatic wrench (1).