CN212071752U

CN212071752U - Pneumatic torque wrench

Info

Publication number: CN212071752U
Application number: CN202020735025.7U
Authority: CN
Inventors: 李华侨
Original assignee: Nanjing Meiouhua Electromechanical Equipment Co ltd
Current assignee: Nanjing Meiouhua Electromechanical Equipment Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2020-12-04
Anticipated expiration: 2030-05-07

Abstract

The utility model discloses a pneumatic type torque wrench, including the second casing, the inside fixedly connected with pneumatic motor of second casing, pneumatic motor's output is provided with the planet wheel subassembly, pneumatic motor's rear side fixedly connected with blast pipe, pneumatic motor's front end fixedly connected with intake pipe, the gas vent has been seted up to the upper end intermediate position of second casing, the upper end of blast pipe with the lower extreme fixed connection of gas vent, the lower extreme fixedly connected with handle of second casing. The utility model discloses in, when dismantling the bolt, the adjustment auto-lock telescopic link makes vacuum chuck and plane contact, when pressing the trigger, and the air in the vacuum chuck is taken out through the connecting pipe by the aspiration pump, and this device is fixed on the plane this moment, and the auto-lock telescopic link plays the effect of the reaction arm of force, and the anticreep area of setting can be established on hand, increases about power with the slipmat together.

Description

Pneumatic torque wrench

Technical Field

The utility model relates to a torque wrench technical field especially relates to a pneumatic type torque wrench.

Background

The pneumatic torque wrench uses compressed air as a working medium to tighten and disassemble a threaded fastener. The pneumatic wrench has the advantages of convenience in use, low cost, no pollution and the like, and is widely applied to assembly of various industries such as automobiles, ships and the like.

The reaction arm that current pneumatic torque wrench front end set up need have certain obstacle to support to realize mostly, can't realize in some places that do not have the obstacle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a pneumatic torque wrench.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a pneumatic torque wrench comprises a second shell, a pneumatic motor is fixedly connected inside the second shell, a planetary wheel assembly is arranged at the output end of the pneumatic motor, an exhaust pipe is fixedly connected to the rear side of the pneumatic motor, an air inlet pipe is fixedly connected to the front end of the pneumatic motor, an air outlet is formed in the middle position of the upper end of the second shell, the upper end of the exhaust pipe is fixedly connected with the lower end of the air outlet, a handle is fixedly connected to the lower end of the second shell, an air inlet is formed in the right side of the lower end of the handle, the lower end of the air inlet pipe is fixedly connected with the upper end of the air inlet, a self-locking telescopic rod is fixedly connected to the lower end of the left side of the second shell, a vacuum chuck is fixedly connected to the left end of the self-locking telescopic rod, a, the lower end of the connecting pipe is fixedly connected with the upper end of the air pumping hole.

As a further description of the above technical solution:

the left end fixedly connected with first casing of second casing, planet wheel subassembly include with pneumatic motor output fixed connection's driving gear.

As a further description of the above technical solution:

the outer side of the driving gear is connected with a plurality of driven gears in a meshed mode, an inner gear ring is arranged on the outer side of each driven gear in a plurality of meshed modes, and the inner gear ring is connected with the driven gears in a meshed mode.

As a further description of the above technical solution:

the left end card of interior ring gear is established and is connected with three and grabs the fastener, three are grabbed fastener left end fixed connection connecting block, the left end fixed connection of connecting block has the dop, the left end of dop runs through the left wall of first casing and is connected with it rotation.

As a further description of the above technical solution:

the handle is characterized in that a trigger is arranged at the upper end of the left side of the handle, anti-slip pads are fixedly connected to the front end and the rear end of the handle, and anti-falling belts are fixedly connected to the rear end of the handle.

As a further description of the above technical solution:

the model number of the pneumatic motor is HX6 AM-F114.3-158.

The utility model discloses following beneficial effect has:

this pneumatic type torque wrench, dismantle at dop position installation and use sleeve or screwdriver bit, with the air inlet and the extraction opening of this device respectively with the air pump, the aspiration pump is connected, when dismantling the bolt, the adjustment auto-lock telescopic link makes vacuum chuck and plane contact, when pressing the trigger, the air in the vacuum chuck is taken out by the aspiration pump through the connecting pipe, this device is fixed on the plane this moment, the auto-lock telescopic link plays the effect of the counter-force arm, the anticreep area of setting can be established on hand, increase the confined power with the slipmat together.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a rear view of the present invention;

FIG. 3 is a schematic view of the overall structure of the present invention;

fig. 4 is the structure diagram of the planetary gear assembly of the present invention.

Illustration of the drawings:

1. clamping a head; 2. a first housing; 3. self-locking telescopic rods; 4. an exhaust port; 5. a second housing; 6. a trigger; 7. a handle; 8. a non-slip mat; 9. an air inlet; 10. a vacuum chuck; 11. a release-preventing band; 12. connecting blocks; 13. a three-grab fastener; 14. a planet wheel assembly; 15. an exhaust pipe; 16. a pneumatic motor; 17. an air extraction opening; 18. a connecting pipe; 19. a driving gear; 20. a driven gear; 21. an inner gear ring; 22. an air inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a pneumatic torque wrench comprises a second shell 5, a pneumatic motor 16 is fixedly connected inside the second shell 5, a planet wheel assembly 14 is arranged at the output end of the pneumatic motor 16, an exhaust pipe 15 is fixedly connected to the rear side of the pneumatic motor 16, an air inlet pipe 22 is fixedly connected to the front end of the pneumatic motor 16, an exhaust port 4 is formed in the middle position of the upper end of the second shell 5, the upper end of the exhaust pipe 15 is fixedly connected with the lower end of the exhaust port 4, a handle 7 is fixedly connected to the lower end of the second shell 5, an air inlet 9 is formed in the right side of the lower end of the handle 7, the lower end of the air inlet pipe 22 is fixedly connected with the upper end of the air inlet 9, a self-locking telescopic rod 3 is fixedly connected to the lower end of the left side of the second shell 5, a vacuum chuck 10 is fixedly connected to the left end of, the lower end of the connecting pipe 18 is fixedly connected with the upper end of the air suction opening 17.

The left end of the second shell 5 is fixedly connected with the first shell 2, and the planet wheel assembly 14 comprises a driving gear 19 fixedly connected with the output end of the pneumatic motor 16; a plurality of driven gears 20 are meshed and connected with the outer side of the driving gear 19, inner toothed rings 21 are arranged on the outer sides of the driven gears 20, and the inner toothed rings 21 are meshed and connected with the driven gears 20; the left end of the inner gear ring 21 is connected with a three-grabbing clamp 13 in a clamping mode, the left end of the three-grabbing clamp 13 is fixedly connected with a connecting block 12, the left end of the connecting block 12 is fixedly connected with a clamping head 1, the left end of the clamping head 1 penetrates through the left wall of the first shell 2 and is connected with the left wall in a rotating mode, after a trigger 6 is pressed, compressed air is pumped into the pneumatic motor 16 through an air inlet 9 and an air inlet pipe 22 and then is exhausted through an exhaust pipe 15 and an exhaust port 4 by an air pump, in the process, the pneumatic motor 16 drives a driving gear 19 to rotate, the driving gear 19 drives a driven gear 20 to rotate, the driven gear 20 drives the inner gear ring 21 to rotate, in the transmission process, the rotating speed transmitted by the pneumatic motor 16 can be reduced, after the inner gear ring 21 rotates, a sleeve or a screwdriver bit on the clamping head 1 is driven to rotate through the transmission of the three; a trigger 6 is arranged at the upper end of the left side of the handle 7, anti-slip pads 8 are fixedly connected to the front end and the rear end of the handle 7, an anti-release belt 11 is fixedly connected to the rear end of the handle 7, and the anti-release belt 11 can be sleeved on the hand and increases the constraining force together with the anti-slip pads 8; the pneumatic motor 16 is of the type HX6 AM-F114.3-158.

The working principle is as follows: when the bolt is disassembled, the self-locking telescopic rod 3 is adjusted to enable the vacuum sucker 10 to be in contact with a plane, when the trigger 6 is pressed, air in the vacuum sucker 10 is pumped out through the connecting pipe 18 by the air pump, at the moment, the device is fixed on the plane, the self-locking telescopic rod 3 plays a role of a reaction arm, after the trigger 6 is pressed, the air pump pumps compressed air into the pneumatic motor 16 from the air inlet 9 and the air inlet pipe 22 and then exhausts the compressed air from the exhaust pipe 15 and the exhaust port 4, in the process, the pneumatic motor 16 drives the driving gear 19 to rotate, the driving gear 19 drives the driven gear 20 to rotate, the driven gear 20 drives the inner gear ring 21 to rotate, in the transmission process, the rotation speed transmitted by the pneumatic motor 16 can be reduced, after the inner gear ring 21 rotates, a sleeve or a screwdriver bit on the chuck 1 is driven to rotate through the transmission of the three-grab clamping piece 13 and the connecting block 12, so that the anti-release belt 11 arranged after, increasing the restraining force together with the non-slip mat 8.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A pneumatic torque wrench, comprising a second housing (5), characterized in that: the pneumatic vacuum pump is characterized in that a pneumatic motor (16) is fixedly connected to the inside of the second shell (5), a planetary wheel assembly (14) is arranged at the output end of the pneumatic motor (16), an exhaust pipe (15) is fixedly connected to the rear side of the pneumatic motor (16), an air inlet pipe (22) is fixedly connected to the front end of the pneumatic motor (16), an exhaust port (4) is formed in the middle position of the upper end of the second shell (5), the upper end of the exhaust pipe (15) is fixedly connected with the lower end of the exhaust port (4), a handle (7) is fixedly connected to the lower end of the second shell (5), an air inlet (9) is formed in the right side of the lower end of the handle (7), the lower end of the air inlet pipe (22) is fixedly connected with the upper end of the air inlet (9), a self-locking telescopic rod (3) is fixedly connected to the lower end of the left side of the second shell (5), and a, the right end of the vacuum chuck (10) is fixedly connected with a connecting pipe (18), the left side of the lower end of the handle (7) is provided with an air pumping hole (17), and the lower end of the connecting pipe (18) is fixedly connected with the upper end of the air pumping hole (17).

2. A pneumatic torque wrench as claimed in claim 1, wherein: the left end of the second shell (5) is fixedly connected with the first shell (2), and the planetary wheel assembly (14) comprises a driving gear (19) fixedly connected with the output end of the pneumatic motor (16).

3. A pneumatic torque wrench as claimed in claim 2, wherein: the outer side of the driving gear (19) is connected with a plurality of driven gears (20) in a meshed mode, an inner gear ring (21) is arranged on the outer side of each driven gear (20), and the inner gear ring (21) is connected with the driven gears (20) in a meshed mode.

4. A pneumatic torque wrench as claimed in claim 3, wherein: the left end card of interior ring gear (21) is established to be connected with three and is grabbed fastener (13), three are grabbed fastener (13) left end fixed connection connecting block (12), the left end fixed connection of connecting block (12) has dop (1), the left end of dop (1) runs through the left wall of first casing (2) and is connected with it rotation.

5. A pneumatic torque wrench as claimed in claim 1, wherein: the handle (7) left side upper end is provided with trigger (6), the equal fixedly connected with slipmat (8) of front and back end of handle (7), the rear end fixedly connected with anticreep area (11) of handle (7).

6. A pneumatic torque wrench as claimed in claim 1, wherein: the type of the pneumatic motor (16) is HX6 AM-F114.3-158.