Hydraulic release bearing piston position sensing device

Abstract

The utility model provides a hydraulic release bearing piston position sensing device, and belongs to the technical field of hydraulic release bearings. A hydraulic release bearing piston position sensing device is characterized by comprising a pump body, a piston is arranged in the pump body, a support is fixedly connected to the piston, a magnetic block is arranged in the support, a sensing device shell is fixedly connected to the pump body, a sensor and a filter are arranged in the sensing device shell, and the magnetic block is arranged in the sensor shell. A cable is arranged on the induction device shell, and a connector is arranged on the cable. When a product runs, the magnetic block moves along with the piston, the inductor induces magnetic field changes, generates electric signals and transmits the electric signals to the filter, the filter filters and amplifies the signals and then outputs the signals from the connector, the current position of the piston can be judged in real time according to the magnitude of the output signals, the structure is small and flexible, and operation is convenient. The original structure of the product is not influenced, the signal stability precision is high, and the sensitivity is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic release bearings and relates to a hydraulic release bearing piston position sensing device. Background Art

[0002] The control of power transmission by hydraulic release bearings in automatic transmission models is an automatic mechanical action through the transmission system control unit. The current hydraulic release bearings cannot determine the current position of the piston in real time, resulting in the control unit being unable to make a comprehensive assessment of the vehicle's driving status. Summary of the invention

[0003] The purpose of the utility model is to solve the above problems in the existing technology and propose a hydraulic release bearing piston position sensing device to solve the problem that the current hydraulic release bearing cannot judge the current position of the piston in real time.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A hydraulic release bearing piston position sensing device, characterized in that it includes a pump body, a piston is arranged in the pump body, a bracket is fixedly connected to the piston, a magnetic block is arranged in the bracket, a sensing device housing is fixedly connected to the pump body, a sensor and a filter are arranged in the sensing device housing, a cable is arranged on the sensing device housing, and a connector is arranged on the cable.

[0006] In the above-mentioned hydraulic release bearing piston position sensing device, the sensing device housing and the magnetic block are arranged on the same side.

[0007] In the above-mentioned hydraulic release bearing piston position sensing device, the connector is a four-pin structure, one for power input, two for signal output, and the other for a common negative pole.

[0008] In the above-mentioned hydraulic release bearing piston position sensing device, the magnetic block is neodymium iron boron.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] When the product is running, the magnet moves with the piston, the sensor senses the change in the magnetic field, generates an electrical signal and transmits it to the filter. The filter filters and amplifies the signal and outputs it from the connector. The current position of the piston can be determined in real time based on the size of the output signal. The device has a small and flexible structure, does not affect the original structure of the product, and has stable signals with high accuracy and sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the structure inside the housing of the sensing device of the utility model;

[0013] Figure 3 It is a structural schematic diagram of the connector of the utility model.

[0014] In the figure,

[0015] 1. Pump body; 2. Piston; 3. Bracket; 4. Magnet; 5. Sensor housing; 6. Sensor; 7. Filter; 8. Cable; 9. Connector; 10. Pin. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] like Figures 1 to 3 As shown,

[0018] A hydraulic release bearing piston position sensing device, characterized in that it includes a pump body 1, a piston 2 is arranged in the pump body 1, a bracket 3 is fixedly connected to the piston 2, a magnetic block 4 is arranged in the bracket 3, a sensing device housing 5 is fixedly connected to the pump body 1, a sensor 6 and a filter 7 are arranged in the sensing device housing 5, a cable 8 is arranged on the sensing device housing 5, and a connector 9 is arranged on the cable 8.

[0019] In this embodiment, the power supply supplies power to the filter 7. When the product is running, the magnetic block 4 moves with the piston 2. The sensor 6 senses the change in the magnetic field, generates an electrical signal and transmits it to the filter 7. The filter 7 filters and amplifies the signal and outputs it from the connector 9. The current position of the piston 2 can be determined in real time according to the size of the output signal. The device has a compact and flexible structure, does not affect the original structure of the product, and has a stable signal with high accuracy and sensitivity.

[0020] In this embodiment, the induction device housing 5 is arranged on the same side as the magnetic block 4. The induction device and the magnetic block 4 are arranged on the same side to facilitate signal collection.

[0021] In this embodiment, the connector 9 is a four-pin 10 structure, one for power input, two for signal output, and the other for a common negative pole.

[0022] In this embodiment, the magnetic block 4 is made of neodymium iron boron.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. At the same time, the meaning of "and / or" appearing in the full text is that it includes three schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0025] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0026] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A hydraulic release bearing piston position sensing device, characterized in that: The invention comprises a pump body (1), wherein a piston (2) is arranged in the pump body (1), a bracket (3) is fixedly connected to the piston (2), a magnetic block (4) is arranged in the bracket (3), an induction device housing (5) is fixedly connected to the pump body (1), an induction device housing (5) is arranged in the induction device housing (5), a cable (8) is arranged on the induction device housing (5), and a connector (9) is arranged on the cable (8).

2. The hydraulic release bearing piston position sensing device according to claim 1, characterized in that: The induction device housing (5) and the magnetic block (4) are arranged on the same side.

3. The hydraulic release bearing piston position sensing device according to claim 1, characterized in that: The connector (9) is a four-pin (10) structure, one for power input, two for signal output, and the other for a common negative pole.

4. The hydraulic release bearing piston position sensing device according to claim 1, characterized in that: The magnetic block (4) is Ru-Fe-B.

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