阅读说明：本技术 变速器液压阀板测试装置 (Transmission hydraulic valve plate testing device ) 是由 姜秋爽 王文丽 张德维 赵志强 于 2021-09-23 设计创作，主要内容包括：本发明涉及变速器液压阀板测试装置,包括阀板连接装置和换挡机构,阀板连接装置用于对接、固定阀板；所述换挡机构包括换挡拨盘和拨盘扭转弹簧,所述换挡拨盘转动安装在阀板连接装置上；换挡拨盘与换挡阀接触,换挡拨盘在换挡阀的推动下摆动；当换挡阀撤销作用在换挡拨盘上的作用力后,拨盘扭转弹簧推动换挡拨盘复位；阀板连接装置上设有挡位传感器,换挡拨盘上具有与挡位传感器配合的探头。变速器液压阀板测试装置创新性的设置了换挡机构,能够实现阀板的挡位检测,测量阀板的换挡性能。(The invention relates to a testing device for a hydraulic valve plate of a transmission, which comprises a valve plate connecting device and a gear shifting mechanism, wherein the valve plate connecting device is used for butting and fixing the valve plate; the gear shifting mechanism comprises a gear shifting drive plate and a drive plate torsion spring, and the gear shifting drive plate is rotatably arranged on the valve plate connecting device; the gear shifting drive plate is in contact with the gear shifting valve and swings under the pushing of the gear shifting valve; when the acting force of the gear shifting valve on the gear shifting drive plate is cancelled, the drive plate torsion spring pushes the gear shifting drive plate to reset; the valve plate connecting device is provided with a gear sensor, and the gear shifting drive plate is provided with a probe matched with the gear sensor. The gear shifting mechanism is innovatively arranged in the testing device for the hydraulic valve plate of the transmission, so that gear detection of the valve plate can be realized, and the gear shifting performance of the valve plate can be measured.)

1. Derailleur hydraulic pressure valve plate testing arrangement, its characterized in that: comprises that

The valve plate connecting device (2) is used for butting and fixing the valve plate (1);

and a gear shift mechanism (3), the gear shift mechanism (3) comprising

A shift dial (37), wherein the shift dial (37) is rotatably mounted on the valve plate connecting device (2); the gear shifting dial (37) is in contact with the gear shifting valve, and the gear shifting dial (37) swings under the pushing of the gear shifting valve;

and a dial torsion spring (36), when the acting force of the gear shift valve on the gear shift dial (37) is removed, the dial torsion spring (36) pushes the gear shift dial (37) to reset;

a gear sensor is arranged on the valve plate connecting device (2), and a probe matched with the gear sensor is arranged on the gear shifting dial (37).

2. The transmission hydraulic valve plate test apparatus of claim 1, wherein: the valve plate connecting device (2) comprises a connecting plate main body (21), wherein a plurality of positioning pin holes (22) are formed in the connecting plate main body (21) and used for positioning the valve plate (1).

3. The transmission hydraulic valve plate test apparatus of claim 2, wherein: and a plurality of shell simulation oil passages (23) are arranged on the butt joint surface of the connecting plate main body (21).

4. The transmission hydraulic valve plate test apparatus of claim 2, wherein: the connecting plate main body (21) is provided with a plurality of flow detection holes (24) and a plurality of oil pressure detection through holes; the oil pressure detection through hole is provided with a pressure sensor (26) for detecting the oil pressure of an oil passage of the valve plate (1); the flow detection hole (24) is communicated with the flowmeter through a pipeline.

5. The transmission hydraulic valve plate test apparatus of claim 1, wherein: the gear shifting mechanism (3) further comprises a baffle plate (35), and the baffle plate (35) is fixedly arranged on the valve plate connecting device (2); an adjustable limiting piece (34) is arranged on the baffle (35), a gear shifting shaft blocking piece (33) is arranged on the gear shifting dial (37), and the gear shifting shaft blocking piece (33) and the gear shifting dial (37) synchronously swing;

the lowest position of the gear shifting dial (37) in the swinging process is limited by the matching of the gear shifting shaft baffle piece (33) and the limiting piece (34).

6. The transmission hydraulic valve plate test apparatus of claim 5, wherein: the gear shifting device is characterized by further comprising a gear shifting shaft (32), wherein one end of the gear shifting shaft (32) is rotatably installed on the valve plate connecting device (2), and the gear shifting dial (37) and the gear shifting shaft blocking piece (33) are fixed on the gear shifting shaft (32).

7. The transmission hydraulic valve plate test apparatus of claim 6, wherein: the gear shifting mechanism (3) further comprises a gear shifting assembly shell (31), and the gear shifting assembly shell (31) is U-shaped; the gear shifting shaft (32) is rotatably mounted on the gear shifting assembly housing (31).

Technical Field

The invention relates to the technical field of transmissions, in particular to a hydraulic valve plate testing device for a transmission.

Background

The hydraulic valve plate is a core part of the automatic transmission and is used for controlling the flow, pressure and the like of a hydraulic element. The hydraulic valve plate integrates a hydraulic control element, combines an oil duct and a valve port arrangement, and realizes the control of the transmission by controlling the switch of each electromagnetic valve. At present, a detection device of a hydraulic valve plate is difficult to achieve high-precision detection, for example, the leakage amount of the valve plate cannot be detected, the current gear cannot be monitored, and the like.

Disclosure of Invention

The invention aims to solve the technical problem of providing a testing device for a hydraulic valve plate of a transmission, which can detect the execution gear of the valve plate and test the performance of the valve plate.

In order to solve the technical problems, the technical scheme of the invention is as follows: the testing device for the hydraulic valve plate of the transmission comprises

The valve plate connecting device is used for butting and fixing the valve plate;

and a shift mechanism including

The gear shifting drive plate is rotatably arranged on the valve plate connecting device; the gear shifting drive plate is in contact with the gear shifting valve and swings under the pushing of the gear shifting valve;

the driving plate torsion spring pushes the shifting driving plate to reset after the acting force of the shifting valve on the shifting driving plate is cancelled;

the valve plate connecting device is provided with a gear sensor, and the gear shifting drive plate is provided with a probe matched with the gear sensor.

As the preferred technical scheme, the valve plate connecting device comprises a connecting plate main body, wherein a plurality of positioning pin holes are formed in the connecting plate main body and used for positioning the valve plate.

As a preferred technical scheme, a plurality of shell simulation oil passages are arranged on the butt joint surface of the connecting plate main body.

As a preferred technical scheme, a plurality of flow detection holes and a plurality of oil pressure detection through holes are formed in the connecting plate main body; the oil pressure detection through hole is provided with a pressure sensor for detecting the oil pressure of the oil duct of the valve plate; the flow detection hole is communicated with the flowmeter through a pipeline.

As a preferred technical scheme, the gear shifting mechanism further comprises a baffle plate, and the baffle plate is fixedly arranged on the valve plate connecting device; the baffle is provided with an adjustable limiting piece, the gear shifting drive plate is provided with a gear shifting shaft baffle, and the gear shifting shaft baffle and the gear shifting drive plate synchronously swing;

the lowest position of the shifting dial in the swinging process is limited by the matching of the blocking piece of the shifting shaft and the limiting piece.

As the preferred technical scheme, the gear shifting device further comprises a gear shifting shaft, one end of the gear shifting shaft is rotatably installed on the valve plate connecting device, and the gear shifting drive plate and the gear shifting shaft blocking piece are fixed on the gear shifting shaft.

As a preferred technical scheme, the gear shifting mechanism further comprises a gear shifting assembly shell, and the gear shifting assembly shell is U-shaped; the shift shaft is rotatably mounted to the shift assembly housing.

Due to the adoption of the technical scheme, the testing device for the hydraulic valve plate of the transmission is innovatively provided with the gear shifting mechanism, so that the gear detection of the valve plate can be realized, and the gear shifting performance of the valve plate can be measured; the positioning function of the positioning pin is added, so that the valve plate is convenient to assemble and disassemble; and a shell simulation oil passage is added so as to enable the measured data to be more accurate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view from a first perspective of a valve plate testing device in use;

FIG. 2 is a schematic view from a second perspective of the valve plate testing device in use;

FIG. 3 is a schematic structural view of the valve plate testing apparatus;

fig. 4 is a partial enlarged view of the shift mechanism.

Detailed Description

As shown in fig. 1 and 2, the transmission hydraulic valve plate testing device includes a valve plate connecting device 2 and a shift mechanism 3. The valve plate connecting device 2 is used for being connected with the valve plate 1, fixing the valve plate 1 and realizing the butt joint of an oil duct and a valve port. The gear shifting mechanism 3 is fixedly installed on the valve plate connecting device 2 and used for monitoring the actual gear of the valve plate 1.

The valve plate connecting device 2 comprises a connecting plate main body 21, wherein the connecting plate main body 21 is provided with a plurality of positioning pin holes 22, and the positioning pin holes are used for being matched with functional holes in the valve plate 1 to realize positioning, for example, bolt holes for assembling the valve plate 1 are matched with the positioning pin holes 22 to position.

As shown in fig. 3, the side surface of the connection plate body 21 abutting against the valve plate 1 is set as an abutting surface, and the side surface opposite to the abutting surface is set as a detection surface.

The butt joint surface of the connecting plate main body 21 is provided with a plurality of shell simulation oil passages 23 for simulating oil passages on the transmission shell and communicating the oil passages on the valve plate 1. The arrangement of the shell simulation oil passage 23 enables test data to be closer to the actual running environment of the transmission, and the test accuracy is higher.

The connecting plate main body 21 is provided with a plurality of flow detection holes 24 and a plurality of oil pressure detection through holes. Two ends of the oil pressure detection through hole are respectively opened on the butt joint surface and the detection surface, one end of the oil pressure detection through hole is communicated with a valve port or an oil channel on the valve plate 1, and the other end of the oil pressure detection through hole is provided with a pressure sensor 26 for detecting the oil pressure of the corresponding valve port or the oil channel. The flow detection holes 24 are communicated with the flowmeter through pipelines, and a plurality of flow detection holes 24 are matched with each other to detect the leakage amount of the oil way of the valve plate 1 through the reasonable positions of the flow detection holes 24.

As shown in fig. 4, the shift mechanism 3 includes a shift dial 37 and a dial torsion spring 36, and the shift dial 37 is rotatably mounted on the link plate body 21. The shift dial 37 is in contact with the shift valve, and the shift dial 37 swings about its own axis under the urging of the shift valve. A gear sensor is arranged on the connecting plate main body 21, a probe matched with the gear sensor is arranged on the gear shifting dial 37, and the gear sensor detects the actual gear of the valve plate 1 by detecting the position of the probe. One end of the dial torsion spring 36 is fixed to the connection plate body 21, and the other end is fixed to the shift dial 37; when the shift valve cancels the force on the shift dial 37, the dial torsion spring 36 pushes the shift dial 37 to be reset.

The connecting plate further comprises a baffle 35, and the baffle 35 is fixed on the connecting plate main body 21 through a connecting piece such as a bolt. An adjustable limiting piece 34 is arranged on the baffle 35; the shift dial 37 is provided with a shift shaft stopper 33, and the shift shaft stopper 33 swings in synchronization with the shift dial 37. Through the cooperation of gear shift axle separation blade 33 and locating part 34, prescribe a limit to the lowest position of gear shift dial 37 swing in-process, still can fix a position gear shift dial 37 simultaneously, be convenient for dismouting valve plate 1. For convenience of manufacturing, the limiting member 34 is a bolt.

Specifically, the shift device further comprises a shift shaft 32, wherein the shift shaft 32 and a shift dial 37 are fixed into a whole; one end of the shift shaft 32 is rotatably attached to the link plate main body 21, and the other end extends outward of the link plate main body 21. A shift dial 37 is provided on the shift shaft 32 at a portion thereof protruding out of the link plate main body 21 so as to be in contact with the shift valve on the valve plate 1 across the link plate main body 21; the shift shaft stopper 33 is fitted over the end of the shift shaft 32 and fixed and locked by a lock nut.

In order to ensure the stability of the testing device and facilitate the processing and manufacturing, the gear shifting mechanism 3 is further provided with a gear shifting assembly shell 31, the gear shifting assembly shell 31 comprises two supporting parts which are oppositely arranged, the two supporting parts are connected through a connecting part, and the two supporting parts and the connecting part are connected to form a U shape; one of which is fixed to the connecting plate body 21. The shift shaft 32 is rotatably mounted on the two support portions.

During testing, the valve plate is placed on the butt joint surface of the connecting plate main body 21, then the valve plate 1 is positioned through the positioning pin hole 22, the gear shifting drive plate 37 is in contact connection with the gear shifting valve on the valve plate 1, and the gear shifting drive plate 37 can swing correspondingly when the gear shifting valve acts; after the wiring harness, the oil duct, the valve port and the like are butted, the valve plate 1 is fixed on the connecting plate main body 21 for testing.

When the test is carried out, the test paper is put into practical use,

the pressure of each clutch of the valve plate 1 is controlled by the TCU;

the oil pressure passing through each clutch oil passage is detected by the pressure sensor 26;

measuring the leakage amount of the valve plate 1 through a flowmeter;

the P-R-N-D gears are converted by controlling the action of the gear shifting valve, and the actual gears of the gear shifting mechanism 3 are detected by the gear sensor, so that the actual working gears of the valve plate 1 are judged.

The hydraulic valve plate testing device can complete all functions and performance tests of the hydraulic valve plate, and comprises valve plate gear shifting and durability tests.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.