Distribution valve of integrated drive control mechanism

Abstract

The utility model relates to the field of distribution valves, and discloses a distribution valve of an integrated drive control mechanism, which comprises a sealing cover and a shell, an encoder is fixedly connected to the upper surface of the sealing cover, a speed reducing mechanism is arranged on the inner side of the shell, a valve body is fixedly connected to the lower part of the shell, a drive motor is fixedly connected to the lower surface of the shell, and the drive motor is fixedly connected to the lower surface of the shell. A distribution mechanism is arranged on the inner side of the valve body and comprises a polished shaft, a rotating disc is inserted into the lower end of the polished shaft, a connecting base is rotationally connected to the lower surface of the rotating disc, and a distribution pipeline is fixedly connected to the lower portion of the inner surface of the connecting base. According to the utility model, the speed reducing mechanism, the driving motor, the encoder and the servo control program are arranged, so that integrated servo control on the optical axis can be formed, and a traditional stepping motor is replaced, thereby avoiding the phenomenon of step loss during accurate transmission and distribution of fluid, resulting in inaccurate butt joint of distribution pipelines, and further improving the working efficiency. And meanwhile, the integrated design can obviously reduce the overall size of the equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of distribution valve especially, it is a kind of distribution valve of integrated drive control mechanism. BACKGROUND

[0002] Distribution valve is a kind of device for controlling fluid (such as air, hydraulic oil etc.) distribution and flow direction, has been widely applied in multiple fields, in railway vehicle brake system, distribution valve controls the inflation of brake cylinder, pressure maintaining and air discharge according to the change of brake pipe pressure, to realize the brake, relief and pressure maintaining etc. of vehicle, guarantee train safe operation.

[0003] In hydraulic system, distribution valve can distribute the liquid output by pump to each execution element (such as hydraulic cylinder, hydraulic motor) according to working demand, to make them act according to predetermined order and speed.In pneumatic system, distribution valve can control the flow direction and on-off of compressed air, to drive pneumatic execution element to complete corresponding work.

[0004] But in prior art, distribution valve is often driven by step motor, and the passageway distribution of distribution valve is controlled by driving optical shaft to rotate through transmission mechanism, its structure is complex, and there are problems of insufficient control precision and slow response speed, in addition, due to the performance limitation of step motor itself, there is the risk of step loss in operation process, so it is inconvenient when high-precision liquid flow control is needed, therefore, a kind of distribution valve of integrated drive control mechanism is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a kind of distribution valve of integrated drive control mechanism, to improve the passageway distribution of distribution valve in prior art by driving optical shaft to rotate through transmission mechanism, its structure is complex, and there are problems of insufficient control precision and slow response speed.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme: a kind of distribution valve of integrated drive control mechanism, including cover, shell, the upper surface of the cover is fixedly connected with encoder, the inside of the shell is provided with speed reducer, the lower part of the shell is fixedly connected with valve body, the lower surface of the shell is fixedly connected with drive motor, the inside of the valve body is provided with distribution mechanism;

[0007] The distribution mechanism includes optical shaft, the lower end of the optical shaft is inserted with rotary disc, the lower surface of the rotary disc is rotatably connected with connecting seat, the inner surface lower part of the connecting seat is fixedly connected with distribution pipeline, the upper surface of the connecting seat is fixedly connected with distribution disc, the lower surface of the rotary disc is provided with distribution groove.

[0008] As further description of the above technical scheme:

[0009] The upper surface of the cover is provided with an arc-shaped groove, the inside of the shell is hollow, and the inside of the valve body is hollow.

[0010] As a further description of the above technical solution:

[0011] The transmission shaft of the encoder is fixedly connected with an output gear in the speed reduction mechanism, and the other end of the gear set in the speed reduction mechanism is fixedly connected with the driving motor.

[0012] As a further description of the above technical solution:

[0013] The cover and the shell are fixedly connected through bolts, and the lower end of the optical shaft is arranged in a rectangular shape.

[0014] As a further description of the above technical solution:

[0015] The upper surface of the rotating disc is provided with a rectangular insertion slot, and the upper end of the optical shaft is fixedly connected with the gear set in the speed reduction mechanism.

[0016] As a further description of the above technical solution:

[0017] The inner surface of the distribution disc is provided with a plurality of groups of through holes, the lower end of the distribution disc is connected with a distribution pipeline, and the number of hole positions and the number of pipelines between them are the same.

[0018] As a further description of the above technical solution:

[0019] The lower end of the connecting seat is provided with a plurality of groups of through holes, the four corners of the connecting seat are provided with through threaded holes, and the connecting seat is fixedly connected with the valve body.

[0020] As a further description of the above technical solution:

[0021] The two ends of the distribution groove are arranged in an arc shape, and the arc surface diameter is the same as the diameter of the through hole on the upper surface of the distribution disc.

[0022] The utility model has the advantages that:

[0023] 1、The utility model discloses a speed reduction mechanism, a driving motor, an encoder and a servo control program are arranged, integrated servo control of the optical shaft can be formed, the traditional step motor is replaced, the step loss phenomenon is avoided when the fluid is accurately transmitted and distributed, the final positioning accuracy is high, and the integrated design can significantly reduce the overall volume of the equipment.

[0024] 2、 The utility model discloses, through the position of encoder is fed back to servo system and carries out feedback control, can make the lower turntable and distribution disc rotation angle precision is higher, thereby avoiding the difference between the program control rotation angle and actual rotation angle of light axle and the influence of actual distribution valve's fluid control effect, make the equipment whole control precision is higher. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The whole schematic diagram of the distribution valve of the integrated drive control mechanism is provided for the utility model;

[0026] Figure 2 The reduction mechanism place schematic diagram of the distribution valve of the integrated drive control mechanism is provided for the utility model;

[0027] Figure 3 The valve body inside schematic diagram of the distribution valve of the integrated drive control mechanism is provided for the utility model;

[0028] Figure 4 The light axle place schematic diagram of the distribution valve of the integrated drive control mechanism is provided for the utility model;

[0029] Figure 5 The connecting seat place schematic diagram of the distribution valve of the integrated drive control mechanism is provided for the utility model.

[0030] LEGEND:

[0031] 1, cover, 2, distribution mechanism, 3, shell, 4, valve body, 5, reduction mechanism, 6, drive motor, 7, encoder, 201, light axle, 202, turntable, 203, connecting seat, 204, distribution disc, 205, distribution pipeline, 206, distribution groove. DETAILED DESCRIPTION

[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0033] REFERENCE Figure 1 - Figure 3 An embodiment provided by the utility model: a distribution valve of integrated drive control mechanism, including cover 1, shell 3, the upper surface of cover 1 is fixedly connected with encoder 7, the inside of shell 3 is provided with reduction mechanism 5, the lower part of shell 3 is fixedly connected with valve body 4, the lower surface of shell 3 is fixedly connected with drive motor 6, and the inside of valve body 4 is provided with distribution mechanism 2.

[0034] The distribution mechanism 2 comprises an optical shaft 201, the lower end of the optical shaft 201 is inserted with a rotating disc 202, the lower surface of the rotating disc 202 is rotationally connected with a connecting seat 203, the inner surface of the lower part of the connecting seat 203 is fixedly connected with a distribution pipeline 205, the upper surface of the connecting seat 203 is fixedly connected with a distribution disc 204, the lower surface of the rotating disc 202 is provided with a distribution groove 206.

[0035] The upper surface of the cover 1 is provided with an arc-shaped groove, the inside of the groove is used to store the control hardware of the encoder 7, and the power supply and signal transmission of the encoder 7 are ensured, the inside of the shell 3 is hollow, the inside of the valve body 4 is hollow, so that the optical shaft 201 and the components below the optical shaft 201 can be accommodated inside, the transmission shaft of the encoder 7 is fixedly connected with the output gear in the speed reduction mechanism 5, so that the rotation angle of the optical shaft 201 can be monitored in real time during the rotation of the gear set in the speed reduction mechanism 5, the other end of the gear set in the speed reduction mechanism 5 is fixedly connected with the driving motor 6, so that the driving motor 6 can be used as a power source to control the operation of the internal components of the distribution valve as a whole, the cover 1 and the shell 3 are fixedly connected by bolts, the lower end of the optical shaft 201 is rectangular, so that it can be inserted into the rotating disc 202 and drive it to rotate synchronously.

[0036] Referring to Figure 1 , Figure 4 and Figure 5 , the upper surface of the rotating disc 202 is provided with a rectangular insertion slot, the upper end of the optical shaft 201 is fixedly connected with the gear set in the speed reduction mechanism 5, so that it can be driven to rotate by the driving motor 6, and at the same time, the rotating information can be transmitted to the encoder 7 synchronously during the rotation, the inner surface of the distribution disc 204 is provided with a plurality of through holes, the lower end of the distribution disc 204 is connected with the distribution pipeline 205, so that the through holes of the distribution disc 204 and the distribution pipeline 205 are connected during the rotation of the rotating disc 202, and different distribution pipelines 205 can be connected with the fluid source, and the number of holes and pipelines between them is the same, the lower end of the connecting seat 203 is provided with a plurality of through holes, the four corners of the connecting seat 203 are provided with threaded through holes, the connecting seat 203 is fixedly connected with the valve body 4, the two ends of the distribution groove 206 are arc-shaped, and the diameters of the arc surfaces are the same as the diameters of the through holes on the upper surface of the distribution disc 204, so that the basic connection requirements of fluid transmission between them are met.

[0037] Working principle: the device in use, by starting the drive motor 6 gear set in the reduction mechanism 5 is rotated, gear set rotation can drive the optical axis 201 and the encoder 7 of the rotating shaft rotation, the encoder 7 will be in the rotation process will optical axis 201 rotation angle information feedback to the drive motor 6, the drive motor 6 will be according to the feedback information on the angle of the optical axis 201 further refinement control, at the same time because the lower end of the optical axis 201 inserted in the surface of the turntable 202 slot, and the lower end of the optical axis 201 is set to rectangular, therefore the optical axis 201 in rotation can drive the turntable 202 synchronous rotation, the turntable 202 rotation makes the distribution groove 206 channel 204 through hole and distribution pipeline 205 connected, and can control different distribution pipeline 205 and fluid source communication, because the distribution disc 204 of the inner surface is provided with a plurality of groups of through hole, and the lower end of the distribution disc 204 and distribution pipeline 205 is connected, so that the fluid can enter the distribution pipeline 205 inside through the through hole on the surface of the distribution disc 204, and from the distribution pipeline 205 inside discharge, realize the function of fluid transmission distribution.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application have, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A dispensing valve incorporating a drive control mechanism, comprising a cap (1), a housing (3), characterised in that: The upper surface of the cover (1) is fixedly connected with an encoder (7), the inner side of the shell (3) is provided with a speed reduction mechanism (5), the lower part of the shell (3) is fixedly connected with a valve body (4), the lower surface of the shell (3) is fixedly connected with a driving motor (6), and the inner side of the valve body (4) is provided with a distribution mechanism (2). The distribution mechanism (2) comprises an optical axis (201), the lower end of the optical axis (201) is inserted with a rotating disc (202), the lower surface of the rotating disc (202) is rotatably connected with a connecting seat (203), the inner surface of the connecting seat (203) is fixedly connected with a distribution pipeline (205) at the lower part, the upper surface of the connecting seat (203) is fixedly connected with a distribution disc (204), and the lower surface of the rotating disc (202) is provided with a distribution groove (206).

2. A pilot operated valve incorporating a drive control mechanism according to claim 1, wherein: The upper surface of the cover (1) is provided with an arc-shaped groove, the inside of the shell (3) is hollow, and the inside of the valve body (4) is hollow.

3. A pilot operated valve incorporating a drive control mechanism as claimed in claim 1 wherein: The transmission shaft of the encoder (7) is fixedly connected with a gear set in the speed reduction mechanism (5), and the other end of the gear set in the speed reduction mechanism (5) is fixedly connected with the driving motor (6).

4. The integrated drive control mechanism dispensing valve of claim 1, wherein: The cover (1) and the shell (3) are fixedly connected through bolts, and the lower end of the optical axis (201) is rectangular.

5. The integrated drive control mechanism dispensing valve of claim 1, wherein: The upper surface of the rotating disc (202) is provided with a rectangular insertion slot, and the upper end of the optical axis (201) is fixedly connected with an output gear in the speed reduction mechanism (5).

6. A pilot operated valve incorporating a drive control mechanism as claimed in claim 1 wherein: The inner surface of the distribution disc (204) is provided with a plurality of penetrating through holes, the lower end of the distribution disc (204) is communicated with the distribution pipeline (205), and the number of hole positions and pipelines between them is the same.

7. A pilot operated valve having an integrated drive control mechanism as defined in claim 1, wherein: The lower end of the connecting seat (203) is provided with a plurality of penetrating through holes, the four corners of the connecting seat (203) are provided with penetrating threaded holes, and the connecting seat (203) is fixedly connected with the valve body (4).

8. The integrated drive control mechanism dispensing valve of claim 1, wherein: The both ends of the distribution groove (206) are provided with arc shapes, and the arc surface diameters are the same as the diameters of the through holes on the upper surface of the distribution disc (204).

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