Pressure regulating assembly for pneumatic motor

Abstract

The utility model discloses a pressure regulating assembly for a pneumatic motor. The pressure regulating assembly comprises a fixed shell, a connecting cavity, an air supply hole, a linear valve element, a connecting hole, a replaceable filtering mechanism, a guide hole, a sliding block, a screw rod, a fixed cover, a regulating head, an air inlet pipe and an annular cavity. The filter has the advantages of being reasonable and simple in structure, low in production cost, convenient to install and complete in function, high-pressure gas enters the annular cavity through the gas inlet pipe, then the high-pressure gas in the annular cavity enters the replaceable filter mechanism through the connecting hole in the upper side to be filtered, and therefore it is guaranteed that no impurity exists in the high-pressure gas, and the filter quality is improved. The stability and the reliability of long-time operation of the motor body are improved; according to the utility model, the plurality of replaceable filtering mechanisms are arranged and can be replaced in sequence according to needs, so that the motor body is ensured not to be influenced during working, and the convenience during use is also improved.

Description

Technical field:

[0001] The utility model relates to the technical field of pneumatic motor pressure regulation, in particular to a pressure regulating component for a pneumatic motor. Background technology:

[0002] Pneumatic motor, also known as air motor, refers to a device that converts the pressure energy of compressed air into rotational mechanical energy. It is generally used as a rotational power source for more complex devices or machines. Pneumatic motors are classified according to their structure: vane pneumatic motor, piston pneumatic motor, compact vane pneumatic motor, compact piston pneumatic motor. However, in the prior art, the existing pneumatic motor drives the internal blades to rotate by compressing air, and most of the current pressure regulating components generally achieve the purpose of pressure regulation by controlling the compression strength of the air. When in use, a large amount of air needs to be drawn in for compression. At this time, if the impurity content in the air is high, if it is injected into the pneumatic motor without being processed, some particles may enter the gap between the blades and the shaft, thereby affecting the normal rotation of the blades, and some harder particles may directly cause wear of the internal pipes, which will affect the service life of the pneumatic motor. For example, there is an existing Chinese utility model patent with patent number CN 218475010 U, which discloses a pressure regulating component for a pneumatic motor. Although the pressure regulating component solves the above-mentioned problem by adding a filter device, the filter device is more troublesome to use and is not convenient for replacement and maintenance. Utility model content:

[0003] The purpose of the utility model is to provide a pressure regulating assembly for a pneumatic motor in order to solve the above problems, which solves the problem that although a filter device is added to the existing pressure regulating assembly, the filter device is troublesome to use and inconvenient to replace and maintain.

[0004] In order to solve the above problems, the utility model provides a technical solution: a pressure regulating assembly for a pneumatic motor, including a motor body, a fixed shell, a connecting cavity, an air supply hole, a linear valve core, a connecting hole, a replaceable filter mechanism, a guide hole, a slider, a screw, a fixed cover, an adjusting head, an air inlet pipe and an annular cavity; a connecting cavity is provided inside the lower side of the fixed shell; an air supply hole is provided in the center of the lower side of the connecting cavity, and the air supply hole is connected to the inlet of the motor body, a guide hole is provided in the center of the upper side of the connecting cavity, a plurality of connecting holes are provided around the upper side of the connecting cavity, and a replaceable filter mechanism is provided on the outer side of the central part of the connecting hole. The filter changing mechanism is provided; the fixed cover is fixedly connected to the upper opening of the guide hole; the upper outer part of the screw is movably connected to the central inner part of the fixed cover, and the upper end of the screw is fixedly connected to an adjusting head; the outer part of the slider is vertically movably connected to the inner part of the guide hole, the threaded hole arranged in the center of the slider is connected to the screw, a linear valve core is fixedly connected to the bottom of the slider, and the lower side of the linear valve core is connected to the inner part of the upper opening of the air supply hole; the annular cavity is arranged inside the upper side of the fixed shell, the lower side of the annular cavity is connected to the upper side of the connecting hole, and the upper left opening of the annular cavity is connected to the air inlet pipe.

[0005] Preferably, the specific structure of the replaceable filter mechanism includes a rotary valve core, an input hole, a slot seat, a block, a slot, a connecting shell, an air inlet, a filter tube body, a filter chamber, an air outlet, an output hole, a spring, a sliding chamber, a stopper and a stopper groove; the rotary valve core is movably connected to the central interior of the side of the fixed shell through the slot seat, an input hole is provided on the upper side of the rotary valve core, and the upper opening of the input hole is connected to the upper side of the connecting hole, an output hole is provided on the lower side of the rotary valve core, and the lower opening of the output hole is connected to the lower side of the connecting hole, a sliding chamber is provided on the lower left side of the rotary valve core; a slot is provided on the right side of the slot seat; the upper and lower positions of the left side of the connecting shell are fixed A card block is fixedly connected, and the card block is connected to the inside of the card slot, a filter chamber is provided inside the connecting shell, and a filter tube body is provided inside the filter chamber, an air inlet is provided inside the upper left side of the connecting shell; the upper opening of the air inlet is connected to the center of the upper side of the filter chamber, and the left entrance of the air inlet is connected to the right opening of the input hole; the air outlet is opened on the left side of the filter chamber, and the left opening of the air outlet is connected to the right opening of the output hole; the outside of the anti-rotation card head is laterally movably connected to the inside of the sliding cavity, a spring is provided between the right side of the anti-rotation card head and the right side of the inside of the sliding cavity, the left side of the anti-rotation card head is connected to the corresponding anti-rotation groove, and the anti-rotation groove is provided inside the fixed shell.

[0006] Preferably, notches are provided at the front and rear positions of the center of the right side of the card slot, and the inside of the notch matches the outside of the card block.

[0007] Preferably, a convex groove is provided on the left outer side of the air inlet and matches with the inside of the right opening of the input hole, and a convex groove is provided on the left outer side of the air outlet and matches with the inside of the right opening of the output hole.

[0008] Preferably, a hexagonal hole is provided in the center of the upper side of the adjusting head.

[0009] Beneficial effects of the utility model:

[0010] (1) The utility model has a reasonable and simple structure, low production cost, easy installation, and complete functions. Here, the high-pressure gas enters the annular cavity through the air inlet pipe, and then the high-pressure gas in the annular cavity enters the replaceable filter mechanism through the connecting hole on the upper side for filtration, thereby ensuring that there are no impurities in the high-pressure gas, thereby improving the stability and reliability of the long-term operation of the motor body.

[0011] (2) The several replaceable filter mechanisms provided in the present invention can be replaced in sequence as needed, thereby ensuring that the motor body will not be affected during operation, thereby improving the convenience during use.

[0012] (3) In the present invention, the connecting shell is rotated 90 degrees, so that the card block can be easily taken out from the notch in the front and rear position of the center of the right side of the card slot. Since the connecting shell is rotated 90 degrees, the rotating valve core will also be rotated 90 degrees, so as to block the connecting hole at this time, thereby ensuring that the work of other replaceable filter mechanisms will not be affected after the connecting shell is removed, thereby meeting the need for continuous operation of the motor body.

[0013] (4) The anti-rotation clamp and spring provided in the utility model can ensure that the anti-rotation clamp clamps the next anti-rotation groove after the valve core rotates ninety degrees, thereby ensuring that the valve core will not rotate after the connecting shell is removed, thereby ensuring the stability and reliability after the connecting shell is replaced. Description of the drawings:

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a structural schematic diagram of a replaceable filter mechanism.

[0016] 1-motor body; 2-fixed shell; 3-connecting chamber; 4-air supply hole; 5-linear valve core; 6-connecting hole; 7-interchangeable filter mechanism; 8-guide hole; 9-slider; 10-screw; 11-fixed cover; 12-adjusting head; 13-inlet pipe; 14-annular chamber; 71-rotating valve core; 72-input hole; 73-slot seat; 74-block; 75-slot; 76-connecting shell; 77-air inlet hole; 78-filter tube body; 79-filter chamber; 710-air outlet hole; 711-output hole; 712-spring; 713-sliding chamber; 714-stop-rotation clamp; 715-stop-rotation groove. Specific implementation method:

[0017] like Figure 1 As shown, this specific embodiment adopts the following technical scheme: a pressure regulating assembly for a pneumatic motor, including a motor body 1, and also including a fixed shell 2, a connecting cavity 3, an air supply hole 4, a linear valve core 5, a connecting hole 6, a replaceable filter mechanism 7, a guide hole 8, a slider 9, a screw 10, a fixed cover 11, an adjusting head 12, an air inlet pipe 13 and an annular cavity 14; a connecting cavity 3 is provided inside the lower side of the fixed shell 2; an air supply hole 4 is provided in the center of the lower side of the connecting cavity 3, and the air supply hole 4 is connected to the inlet of the motor body 1, a guide hole 8 is opened in the center of the upper side of the connecting cavity 3, and a plurality of connecting holes 6 are opened around the upper side of the connecting cavity 3, and a replaceable filter is provided on the outer side of the central part of the connecting hole 6. Mechanism 7; the fixed cover 11 is fixedly connected to the upper opening of the guide hole 8; the upper outer part of the screw rod 10 is movably connected to the central interior of the fixed cover 11, and the upper end of the screw rod 10 is fixedly connected to the adjusting head 12; the outer part of the slider 9 is vertically movably connected to the inside of the guide hole 8, the threaded hole arranged in the center of the slider 9 is connected to the screw rod 10, the bottom of the slider 9 is fixedly connected to the linear valve core 5, and the lower side of the linear valve core 5 is connected to the inner part of the upper opening of the air supply hole 4; the annular cavity 14 is arranged inside the upper side of the fixed shell 2, the lower side of the annular cavity 14 is connected to the upper side of the connecting hole 6, and the upper left opening of the annular cavity 14 is connected to the intake pipe 13.

[0018] like Figure 2As shown, the specific structure of the replaceable filter mechanism 7 includes a rotary valve core 71, an input hole 72, a slot seat 73, a block 74, a slot 75, a connecting shell 76, an air inlet 77, a filter tube body 78, a filter chamber 79, an air outlet 710, an output hole 711, a spring 712, a sliding chamber 713, a stopper 714 and a stopper groove 715; the rotary valve core 71 is movably connected to the central interior of the side of the fixed shell 2 through the slot seat 73, the upper side of the rotary valve core 71 is provided with an input hole 72, and the upper side opening of the input hole 72 is connected to the upper side of the connecting hole 6, the lower side of the rotary valve core 71 is provided with an output hole 711, and the lower side opening of the output hole 711 is connected to the lower side of the connecting hole 6, the lower left side of the rotary valve core 71 is provided with a sliding chamber 713; the right side of the slot seat 73 is provided with a slot 75; the upper and lower positions of the left side of the connecting shell 76 are provided A clamping block 74 is fixedly connected to each of the two housings, and the clamping block 74 is connected to the inside of the clamping slot 75. A filter chamber 79 is provided inside the connecting shell 76, and a filter tube body 78 is provided inside the filter chamber 79. An air inlet 77 is provided inside the upper left side of the connecting shell 76. The upper opening of the air inlet 77 is connected to the upper center of the filter chamber 79, and the left entrance of the air inlet 77 is connected to the right opening of the input hole 72. The air outlet 710 is opened on the left side of the filter chamber 79, and the left opening of the air outlet 710 is connected to the right opening of the output hole 711. The outside of the anti-rotation clamp 714 is laterally movably connected to the inside of the sliding cavity 713, and a spring 712 is provided between the right side of the anti-rotation clamp 714 and the right side of the inside of the sliding cavity 713. The left side of the anti-rotation clamp 714 is connected to the corresponding anti-rotation groove 715, and the anti-rotation groove 715 is provided inside the fixed shell 2.

[0019] Among them, the central front and rear positions of the right side of the slot 75 are both provided with notches, and the inside of the notches matches the outside of the block 74, so that the block 74 is convenient to be taken out from the notches at the central front and rear positions on the right side of the slot 75; the left side of the air inlet 77 is provided with a convex groove on the outside and matches the inside of the right side opening of the input hole 72, and the left side of the air outlet 710 is provided with a convex groove on the outside and matches the inside of the right side opening of the output hole 711; the upper center of the adjusting head 12 is provided with an inner hexagon hole, so that the adjusting head 12 can be driven to rotate by an inner hexagon wrench.

[0020] The use status of the utility model is as follows: the utility model has a reasonable and simple structure, low production cost, easy installation, and complete functions. When in use, the high-pressure gas first enters the annular cavity 14 through the air inlet pipe 13, and then the high-pressure gas in the annular cavity 14 enters the replaceable filter mechanism 7 through the upper connecting hole 6 for filtration, thereby ensuring that there are no impurities in the high-pressure gas, and thus improving the stability and reliability of the long-term operation of the motor body 1, and then the filtered gas enters the connecting cavity 3 through the lower connecting hole 6, and then enters the motor body 1 through the air supply hole 4. The several replaceable filter mechanisms 7 provided here can be replaced in sequence as needed, thereby ensuring that the motor body 1 will not be affected when working, and thus improving the use time. The convenience of replacement is achieved by first rotating the connecting shell 76 by ninety degrees, so that the block 74 can be easily taken out from the notch in the front and rear center of the right side of the slot 75. Since the connecting shell 76 rotates by ninety degrees, it will also drive the rotating valve core 71 to rotate by ninety degrees, so as to facilitate blocking the connecting hole 6 at this time, thereby ensuring that the operation of other replaceable filter mechanisms 7 will not be affected after the connecting shell 76 is removed, thereby meeting the needs of continuous operation of the motor body 1. The anti-rotation clamp 714 and spring 712 provided in addition can ensure that the anti-rotation clamp 714 clamps the next anti-rotation groove 715 after the valve core 71 rotates by ninety degrees, thereby ensuring that the valve core 71 will not rotate after the connecting shell 76 is removed, thereby ensuring the stability and reliability after the connecting shell 76 is replaced.

[0021] The control method in the present invention is to start manually or control by existing automation technology. The wiring diagram of the power element and the provision of power supply belong to the common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0022] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and 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 therefore should not be understood as a limitation on the present invention.

[0023] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0024] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A pressure regulating assembly for a pneumatic motor, comprising a motor body (1), characterized in that: It also includes a fixed housing (2), a connecting chamber (3), an air supply hole (4), a linear valve core (5), a connecting hole (6), a replaceable filter mechanism (7), a guide hole (8), a slider (9), a screw (10), a fixed cover (11), an adjusting head (12), an air inlet pipe (13) and an annular chamber (14); A connecting cavity (3) is provided inside the lower side of the fixed housing (2); An air supply hole (4) is provided at the center of the lower side of the connecting cavity (3), and the air supply hole (4) is connected to the inlet of the motor body (1); a guide hole (8) is provided at the center of the upper side of the connecting cavity (3); a plurality of connecting holes (6) are provided around the upper side of the connecting cavity (3), and a replaceable filter mechanism (7) is provided on the outer side of the center of the connecting hole (6); The fixed cover (11) is fixedly connected to the upper opening of the guide hole (8); The upper outer portion of the screw rod (10) is movably connected to the central inner portion of the fixed cover (11), and the upper end portion of the screw rod (10) is fixedly connected to an adjusting head (12); The outside of the slider (9) is vertically movably connected to the inside of the guide hole (8), the threaded hole arranged in the center of the slider (9) is connected to the screw rod (10), the bottom of the slider (9) is fixedly connected to a linear valve core (5), and the lower side of the linear valve core (5) is internally connected to the upper opening of the air supply hole (4); The annular cavity (14) is arranged inside the upper side of the fixed shell (2), the lower side of the annular cavity (14) is connected to the upper side of the connecting hole (6), and the upper left opening of the annular cavity (14) is connected to the air intake pipe (13).

2. The pressure regulating assembly for a pneumatic motor according to claim 1, characterized in that: The specific structure of the replaceable filter mechanism (7) comprises a rotary valve core (71), an input hole (72), a slot seat (73), a block (74), a slot (75), a connecting shell (76), an air inlet hole (77), a filter tube body (78), a filter cavity (79), an air outlet hole (710), an output hole (711), a spring (712), a sliding cavity (713), a rotation-stopping clamp (714) and a rotation-stopping groove (715); The rotary valve core (71) is movably connected to the central interior of the side of the fixed housing (2) through a slot seat (73); an input hole (72) is provided on the upper side of the rotary valve core (71), and the upper opening of the input hole (72) is connected to the upper side of the connecting hole (6); an output hole (711) is provided on the lower side of the rotary valve core (71), and the lower opening of the output hole (711) is connected to the lower side of the connecting hole (6); a sliding cavity (713) is provided inside the lower left side of the rotary valve core (71); A card slot (75) is provided inside the right side of the card slot seat (73); The upper and lower positions of the left side of the connecting shell (76) are fixedly connected with a clamping block (74), and the clamping block (74) is connected to the inside of the clamping slot (75). The connecting shell (76) is provided with a filter chamber (79), and the filter chamber (79) is provided with a filter tube (78). The upper left side of the connecting shell (76) is provided with an air inlet (77). The upper opening of the air inlet (77) is connected to the center of the upper side of the filter cavity (79), and the left entrance of the air inlet (77) is connected to the right opening of the input hole (72); The air outlet hole (710) is provided on the left side of the filter cavity (79), and the left opening of the air outlet hole (710) is connected to the right opening of the output hole (711); The outside of the anti-rotation clamp (714) is laterally movably connected to the inside of the sliding cavity (713), a spring (712) is provided between the right side of the anti-rotation clamp (714) and the right side of the inside of the sliding cavity (713), the left side of the anti-rotation clamp (714) is connected to the corresponding anti-rotation groove (715), and the anti-rotation groove (715) is provided inside the fixed shell (2).

3. The pressure regulating assembly for a pneumatic motor according to claim 2, characterized in that: Notches are provided at the front and rear positions of the center of the right side of the card slot (75), and the inside of the notch matches the outside of the card block (74).

4. The pressure regulating assembly for a pneumatic motor according to claim 2, characterized in that: The left side exterior of the air inlet (77) is provided with a convex groove and matches the inside of the right opening of the input hole (72); the left side exterior of the air outlet (710) is provided with a convex groove and matches the inside of the right opening of the output hole (711).

5. The pressure regulating assembly for a pneumatic motor according to claim 1, characterized in that: A hexagonal hole is provided in the center of the upper side of the adjusting head (12).

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