CN222661544U - Moment-adjustable pneumatic air conditioner - Google Patents

Abstract

The utility model discloses a moment-adjustable pneumatic air screwdriver, which relates to the technical field of air screwdrivers and comprises an air motor, wherein a shell structure is arranged outside the air motor, a force measuring structure is arranged at the driving end of the air motor, a pressurizing structure is arranged on the front wall surface of the force measuring structure, an air valve structure is arranged at the tail part of the air motor, the force measuring structure comprises a force measuring bottom plate, a force measuring top frame, a top frame bearing, a top frame supporting plate and a supporting plate bearing, the force measuring bottom plate is fixedly arranged at the driving end of the air motor, and the force measuring top frame is movably arranged on the front wall surface of the force measuring bottom plate.

Description

Moment-adjustable pneumatic air conditioner

Technical Field

The utility model relates to the technical field of air batches, in particular to a moment-adjustable pneumatic air batch.

Background

The pneumatic screwdriver is a common pneumatic tool for screwing and unscrewing screws and nuts, and the pneumatic screwdriver runs by using compressed air as power, and has become an indispensable tool in the assembly industry due to the fact that the pneumatic screwdriver is high in speed, high in efficiency and small in temperature rise, and the pneumatic screwdriver head is a tool head on the pneumatic screwdriver.

The current stage of air batch adopts the mode of fixed torque mostly, but when assembling different bolts, needs different maximum torque, consequently just needs to prepare the moment of torsion of different models, and the power of the air motor in the air batch still can be adjusted to the mode of adjusting the air input to most air batch to accomplish the adjustment of air batch moment of torsion, but this kind of mode of adjusting the air input can't be accurate adjust the moment of torsion of air motor, when the air input is too big, is greater than the air motor maximum load, will cause the damage to air motor.

Disclosure of utility model

The utility model aims to solve the defects in the prior art, and provides a moment-adjustable pneumatic air conditioner. The utility model has two ways of adjusting moment, one can adjust the maximum moment value through the mechanical structure, can protect the pneumatic motor in the air batch, can make the pneumatic motor work under the allowable moment, and the other can adjust the power of the pneumatic motor through the way of adjusting the air inflow, thereby expanding the adjusting range of the moment of the utility model.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The moment-adjustable pneumatic air screwdriver comprises an air motor, wherein a shell structure is arranged outside the air motor, a force measuring structure is arranged at the driving end of the air motor, a pressurizing structure is arranged on the front wall surface of the force measuring structure, an air valve structure is arranged at the tail of the air motor, the force measuring structure comprises a force measuring bottom plate, a force measuring top frame, a top frame bearing, a top frame supporting plate and a supporting plate bearing, the force measuring bottom plate is fixedly arranged at the driving end of the air motor, the force measuring top frame is movably arranged on the front wall surface of the force measuring bottom plate, the top frame bearing is fixedly sleeved outside the force measuring top frame, the top frame supporting plate is movably sleeved outside the force measuring top frame, and the supporting plate bearing is sleeved outside the top frame supporting plate.

The utility model further provides the pressurizing structure which comprises two turntables and a pressurizing spring, wherein one turntable is arranged on the front wall surface of the force measuring top frame, one end of the pressurizing spring is arranged on the side wall surface of the turntable, and the other turntable is arranged on the other end of the pressurizing spring.

The utility model further provides the shell structure which comprises a main body shell, a support shell and a pressurizing shell, wherein the main body shell is sleeved outside the pneumatic motor, the support shell is sleeved outside the top frame bearing and the support plate bearing, and the pressurizing shell is movably sleeved outside the support shell through threads.

The utility model further provides that the air valve structure comprises an air pipe and an adjustable air valve, wherein one end of the air pipe is arranged at the tail part of the pneumatic motor, and the adjustable air valve is sleeved outside the air pipe.

The utility model further provides that the front wall surface of the force measuring top frame is provided with a tool shaft.

The utility model further provides that the upper wall surface of the main body shell is provided with a starting button.

The utility model is further provided that the force measuring bottom plate is provided with a plurality of round pits, and the round pits of the force measuring bottom plate can correspond to the ejector pins of the force measuring top frame.

The utility model has the beneficial effects that the air conditioner has two torque adjusting modes, one of which can adjust the maximum torque value through a mechanical structure, can protect the pneumatic motor in the air conditioner, can enable the pneumatic motor to work under the allowable torque, and the other can adjust the power of the pneumatic motor through the mode of adjusting the air inflow, thereby expanding the torque adjusting range of the utility model.

1. The torque-adjustable pneumatic air screwdriver is provided with the force measuring structure, the force measuring structure can adjust the maximum torque allowed to be driven by the pneumatic motor from the mechanical structure, and when the torque is overlarge, the force measuring structure can take off load and idle, so that the pneumatic motor is prevented from overload.

2. According to the torque-adjustable pneumatic air batch, through the arrangement of the air valve structure, the air inflow of the pneumatic motor can be adjusted through the air valve structure, so that the maximum power of the pneumatic motor is adjusted, and the maximum torque which can be borne by the pneumatic motor is adjusted from the angle of the pneumatic motor.

3. The torque-adjustable pneumatic air screwdriver is provided with the pressurizing structure, and the pressurizing structure can adjust the maximum torque peak value born by the force measuring structure, so that the safe operation of the pneumatic motor can be ensured.

Drawings

FIG. 1 is a schematic view of the external overall structure of a torque-adjustable pneumatic air brake set forth in the present utility model;

FIG. 2 is a schematic diagram of the overall internal structure of a torque-adjustable pneumatic air brake set according to the present utility model;

FIG. 3 is a schematic view of the internal part of a torque-adjustable pneumatic air brake set according to the present utility model;

fig. 4 is a schematic diagram of an internal local explosion structure of a torque-adjustable pneumatic air-jet mill according to the present utility model.

In the figure, 1, a pneumatic motor; 2, a force measuring bottom plate, 3, a force measuring top frame, 4, a top frame bearing, 5, a top frame supporting plate, 6, a supporting plate bearing, 7, a turntable, 8, a pressurizing spring, 9, a main body shell, 10, a bracket shell, 11, a pressurizing shell, 12, an air pipe, 13, an adjustable air valve, 14, a tool shaft, 15 and a starting button.

Detailed Description

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the patent and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and are therefore not to be construed as limiting the patent.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

Referring to figures 1-4, a moment-adjustable pneumatic air batch comprises an air motor 1, wherein a shell structure is arranged outside the air motor 1, a force measuring structure is arranged at the driving end of the air motor 1, a pressurizing structure is arranged on the front wall surface of the force measuring structure, an air valve structure is arranged at the tail of the air motor 1, the force measuring structure comprises a force measuring bottom plate 2, a force measuring top frame 3, a top frame bearing 4, a top frame supporting plate 5 and a supporting plate bearing 6, the force measuring bottom plate 2 is fixedly arranged at the driving end of the air motor 1, the force measuring top frame 3 is movably arranged on the front wall surface of the force measuring bottom plate 2, the top frame bearing 4 is fixedly sleeved outside the force measuring top frame 3, the top frame supporting plate 5 is movably sleeved outside the force measuring top frame 3, the supporting plate bearing 6 is sleeved outside the top frame supporting plate 5, a tool shaft 14 is arranged on the front wall surface of the force measuring top frame 3, the force measuring bottom plate 2 is provided with a plurality of round pits, the round pits of the force measuring bottom plate 2 can correspond to the ejector pins of the force measuring top frame 3, the force measuring structure can adjust the maximum torque allowed to be driven by the air motor 1 from the mechanical structure, and idle running of the air motor 1 can be avoided when the torque is excessively large.

The pressurizing structure comprises two turntables 7 and a pressurizing spring 8, wherein one turntable 7 is arranged on the front wall surface of the force measuring top frame 3, one end of the pressurizing spring 8 is arranged on the side wall surface of the turntable 7, the other turntable 7 is arranged on the other end of the pressurizing spring 8, and the pressurizing structure can adjust the maximum moment peak value born by the force measuring structure, so that the safe operation of the pneumatic motor 1 can be ensured.

Specifically, the air valve structure comprises an air pipe 12 and an adjustable air valve 13, one end of the air pipe 12 is arranged at the tail part of the air motor 1, the adjustable air valve 13 is sleeved outside the air pipe 12, and the air valve structure can adjust the air inflow of the air motor 1, so that the maximum power of the air motor 1 is adjusted, and the maximum torque which can be borne by the air motor 1 is adjusted from the angle of the air motor 1.

Specifically, the shell structure comprises a main body shell 9, a support shell 10 and a pressurizing shell 11, wherein the main body shell 9 is sleeved outside the pneumatic motor 1, the support shell 10 is sleeved outside the top frame bearing 4 and the support plate bearing 6, the pressurizing shell 11 is movably sleeved outside the support shell 10 through threads, and a starting button 15 is arranged on the upper wall surface of the main body shell 9.

When the pneumatic motor is used, an operator presses a start button 15 to start the pneumatic motor 1, drives a force measuring bottom plate 2 to rotate, drives a force measuring top plate 3 to rotate through friction force, namely drives a tool shaft 14 to rotate, at the moment, the rotating tool shaft 14 can rotate a bolt, when the bolt is installed to the bottom of the pneumatic motor, the friction force between the force measuring bottom plate 2 and the force measuring top plate 3 is small by Yu Gong, the torque of the tool shaft 14 is small, the force measuring bottom plate 2 and the force measuring top plate 3 idles, so that the damage to the pneumatic motor 1 caused by overlarge torque borne by the pneumatic motor 1 is avoided, the operator can increase the maximum torque by rotating a pressurizing shell 11, the pressurizing shell 11 is under the action of threads, the force measuring bottom plate 2 is driven to rotate, the force measuring top plate 3 is driven to rotate, the friction force is equal to the product of the friction factor and the positive pressure, the friction force between the force measuring bottom plate 2 and the force measuring top plate 3 is increased, the torque can be adjusted by the pneumatic motor 1, and the air input can be adjusted by the air valve 1, and the pneumatic motor 1 can be adjusted.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (7)

1. The torque-adjustable pneumatic air screwdriver comprises an air motor (1), and is characterized in that a shell structure is arranged outside the air motor (1), a force measuring structure is arranged at the driving end of the air motor (1), a pressurizing structure is arranged on the front wall surface of the force measuring structure, and an air valve structure is arranged at the tail part of the air motor (1);

the force measuring structure comprises a force measuring bottom plate (2), a force measuring top frame (3), a top frame bearing (4), a top frame supporting plate (5) and a supporting plate bearing (6);

The force measuring bottom plate (2) is fixedly arranged at the driving end of the pneumatic motor (1), the force measuring top frame (3) is movably arranged on the front wall surface of the force measuring bottom plate (2), the top frame bearing (4) is fixedly sleeved outside the force measuring top frame (3), the top frame supporting plate (5) is movably sleeved outside the force measuring top frame (3), and the supporting plate bearing (6) is sleeved outside the top frame supporting plate (5).

2. A moment adjustable pneumatic screwdriver according to claim 1, characterized in that the pressing structure comprises two turntables (7) and a pressing spring (8);

One turntable (7) is arranged on the front wall surface of the force measuring top frame (3), one end of the pressurizing spring (8) is arranged on the side wall surface of the turntable (7), and the other turntable (7) is arranged on the other end of the pressurizing spring (8).

3. A moment adjustable pneumatic screwdriver according to claim 1, wherein the housing structure comprises a main housing (9), a bracket housing (10) and a pressurized housing (11);

The main body shell (9) is sleeved outside the pneumatic motor (1), the support shell (10) is sleeved outside the top frame bearing (4) and the support plate bearing (6), and the pressurizing shell (11) is movably sleeved outside the support shell (10) through threads.

4. A moment adjustable pneumatic air batch as claimed in claim 1 wherein the air valve structure comprises an air tube (12) and an adjustable air valve (13);

One end of the air pipe (12) is arranged at the tail part of the pneumatic motor (1), and the adjustable air valve (13) is sleeved outside the air pipe (12).

5. A moment adjustable pneumatic screwdriver according to claim 1, characterized in that the front wall of the force measuring top frame (3) is provided with a tool shaft (14).

6. A moment adjustable pneumatic screwdriver according to claim 3, characterized in that the upper wall of the main body housing (9) is provided with a start button (15).

7. The moment-adjustable pneumatic screwdriver according to claim 1, wherein the force measuring bottom plate (2) is provided with a plurality of round pits, and the round pits of the force measuring bottom plate (2) can correspond to ejector pins of the force measuring top frame (3).