CN216558676U - Electronic throttle valve output shaft axial clearance measuring device - Google Patents

Abstract

The utility model discloses an axial clearance measuring device for an output shaft of an electronic throttle valve, and relates to an axial clearance measuring device for an output shaft of an electronic throttle valve, which comprises: the device comprises a base, a dial indicator, a testing assembly, a throttle valve mounting block, a jacking assembly and an operating device, wherein the throttle valve mounting block, the jacking assembly and the operating device are mounted on the base, the dial indicator is arranged at the upper end of the base, the testing assembly is arranged on one side of the dial indicator, the throttle valve mounting block is arranged on one side of the testing assembly, which is far away from the testing assembly, the jacking assembly is located on one side of the throttle valve mounting block, which is far away from the testing assembly, and the operating device is located on one side of the throttle valve mounting block, which is far away from the jacking assembly. The detection time is shortened by 90%; product scrapping caused by a traditional detection means is avoided, and prevention is carried out before the gap distribution parameters of a production line deviate; the product is objectively detected, the reliability of the product is improved, and the probability of vehicle failure is reduced.

Description

Electronic throttle valve output shaft axial clearance measuring device

Technical Field

The utility model relates to the technical field of measurement of axial clearance of an output shaft of a throttle valve, in particular to an axial clearance measuring device of an output shaft of an electronic throttle valve.

Background

The axial clearance of the output shaft of the electronic throttle valve is guaranteed by the parameters set by a production line at present according to the distribution proportion of the axial clearance of the throttle valve, the product is assembled, the clearance is not measured, and whether the clearance is reasonable or not can be qualitatively determined in each batch in a sampling test mode and cannot be quantitatively measured.

At present, after the throttle valve is assembled, the actual axial gap size and the unilateral gap proportion are mostly determined whether the gap meets the application requirements by testing whether the throttle valve is blocked at high temperature or low temperature, the method belongs to qualitative test, quantitative test cannot be carried out, whether the gap program of a production line generates deviation cannot be judged, and the method is judged by experience, so that products with abnormal application easily flow out, or after detection, high-low temperature clamping stagnation detection needs to be carried out by 100% in the whole batch.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an axial clearance measuring device for an output shaft of an electronic throttle valve, which is used for solving the technical problem.

The technical scheme adopted by the utility model is as follows:

the utility model provides an electronic throttle valve output shaft axial clearance measuring device, includes base, amesdial, test assembly and install in throttle valve installation piece, jack-up subassembly and controlling means on the base, the upper end of base is equipped with the amesdial, one side of amesdial is equipped with the test assembly, one side that the test assembly kept away from the amesdial is equipped with throttle valve installation piece, the jack-up subassembly is located throttle valve installation piece is kept away from one side of test assembly, controlling means is located the jack-up subassembly is kept away from one side of throttle valve installation piece.

Preferably, the test device further comprises a guide rail sliding block assembly, the guide rail sliding block assembly is located at the lower end of the test assembly, and the test assembly is connected with the base through the guide rail sliding block assembly.

Preferably, the throttle valve mounting block is provided with a guide rail sliding block assembly, the throttle valve mounting block is provided with a throttle valve, and the guide rail sliding block assembly is arranged on the upper end of the base and used for driving the guide rail sliding block assembly.

As a further preference, the testing component includes an installation block, a clamping device, a shaft end retaining ring, a thrust disc, a spring, a linear bearing and a measuring head, the installation block is arranged at the upper end of the guide rail sliding block component, the clamping device is arranged at one side of the installation block close to the dial gauge, a placement groove is arranged on the installation block, the shaft end retaining ring is arranged on the inner wall of one side of the placement groove close to the clamping device, the thrust disc is arranged at one side of the shaft end retaining ring away from the clamping device, the measuring head is arranged at one side of the installation block away from the dial gauge, the measuring head part extends into the placement groove, the dial gauge measuring head of the dial gauge sequentially passes through the clamping device, the shaft end retaining ring and the thrust disc and extends into the placement groove, the spring is sleeved on the measuring head of the dial gauge, one side of the thrust disc away from the shaft end retaining ring is connected with one side of the spring, the other side of the spring is connected with the measuring head, one side, far away from the spring, of the measuring head penetrates through the mounting block and is located on the outer side of the mounting block, and the linear bearing is arranged between the measuring head and the placing groove.

Preferably, a throttle valve is arranged at the upper end of the throttle valve mounting block, a throttle valve end cover is arranged on one side of the throttle valve close to the measuring head, the throttle valve end cover is opposite to the measuring head, and a throttle valve gear box is arranged on one side of the throttle valve far away from the throttle valve end cover.

As a further preference, the guide rail sliding block assembly comprises a guide rail and a sliding block arranged on the guide rail, and the testing assembly is arranged at the upper end of the sliding block.

Preferably, the jacking assembly is provided with a jacking rod on one side close to the throttle valve gear box.

An electronic throttle output shaft axial clearance measurement method, the measurement method comprising:

s1, installing the throttle valve at the upper end of the throttle valve installation block, then driving a throttle valve plate of the throttle valve to a fully opened state, and clearing the scale of the dial indicator at the moment;

s2, screwing the screw rod assembly, wherein the screw rod assembly pushes the guide rail sliding block assembly to drive the testing assembly to move towards the direction close to the throttle valve end cover, and when the measuring head is not in contact with the throttle valve end cover, the dial indicator scale is displayed as 0;

s3, after the measuring head contacts the throttle end cover, continuing to screw the screw assembly to generate a thrust F1, retreating the measuring head under the action of the thrust F1 and compressing a spring, simultaneously observing the retreating displacement of the measuring head of the dial indicator, and stopping screwing the screw assembly when the retreating displacement of the measuring head of the dial indicator reaches a certain value;

s4, resetting the scale of the dial indicator, completely pushing the throttle valve output shaft to the throttle valve gear box, then extending a mandril of the jacking assembly to generate jacking force F2 and jacking the throttle valve output shaft, wherein the jacking force F2 is greater than the pushing force F1 so as to push the throttle valve output shaft to move from the throttle valve gear box to the throttle valve end cover, and at the moment, the numerical value displayed on the dial indicator is the stroke of the throttle valve output shaft moving from the throttle valve gear box to the throttle valve end cover, namely the axial total gap X of the throttle valve output shaft.

The technical scheme has the following advantages or beneficial effects:

the device and the method for measuring the axial clearance of the output shaft of the electronic throttle valve have the advantages that the detection time is shortened by 90%; product scrapping caused by a traditional detection means is avoided, and prevention is carried out before the gap distribution parameters of a production line deviate; the product is objectively detected, the reliability of the product is improved, and the probability of vehicle failure is reduced.

Drawings

FIG. 1 is a schematic structural diagram of an electronic throttle output shaft axial clearance measuring device according to the present invention;

FIG. 2 is a schematic cross-sectional structural view of an electronic throttle output shaft axial clearance measuring device of the present invention;

FIG. 3 is a structural diagram of a second step of the method for measuring the axial clearance of the output shaft of the electronic throttle valve of the present invention;

FIG. 4 is a structural diagram of a third step of the method for measuring the axial clearance of the output shaft of the electronic throttle valve of the present invention;

FIG. 5 is a schematic structural diagram of a fourth step of the method for measuring the axial clearance of the output shaft of the electronic throttle valve.

In the figure: 1. a base; 2. a guide rail slider assembly; 3. a screw assembly; 4. a dial indicator; 5. testing the component; 51. a clamping device; 52. a shaft end retainer ring; 53. a thrust plate; 54. a spring; 55. a linear bearing; 56. a measuring head; 57. a placement groove; 58. mounting blocks; 6. a throttle mounting block; 7. jacking the assembly; 71. a top rod; 8. an operating device; 9. a throttle valve; 91. a throttle cover; 92. a throttle gear box; 93. a throttle output shaft; 94. an air throttle aluminum body; 95. an output shaft limit pin.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a schematic structural diagram of an electronic throttle output shaft axial clearance measuring device of the present invention, fig. 2 is a schematic sectional structural diagram of an electronic throttle output shaft axial clearance measuring device of the present invention, fig. 3 is a schematic structural diagram of a second step of an electronic throttle output shaft axial clearance measuring method of the present invention, fig. 4 is a schematic structural diagram of a third step of an electronic throttle output shaft axial clearance measuring method of the present invention, fig. 5 is a schematic structural diagram of a fourth step of an electronic throttle output shaft axial clearance measuring method of the present invention, please refer to fig. 1 to 5, which illustrate a preferred embodiment, which illustrates an electronic throttle output shaft axial clearance measuring device, including: the air throttle valve testing device comprises a base 1, a dial indicator 4, a testing assembly 5, an air throttle valve mounting block 6, a jacking assembly 7 and an operating device 8, wherein the air throttle valve mounting block 6, the jacking assembly 7 and the operating device 8 are mounted on the base 1 and fixed with the base 1 through the matching of threaded holes in the base 1 and bolts. The upper end of the base 1 is provided with a dial indicator 4, and the dial indicator 4 is used for measuring and displaying displacement. One side of amesdial 4 is provided with test assembly 5, and the gauge outfit position of amesdial 4 sets up in test assembly 5's the outside, and one side that test assembly 5 kept away from amesdial 4 is provided with throttle valve installation piece 6, and throttle valve installation piece 6 is the rectangle setting, can set up different throttle valve installation piece 6 according to the product of difference. The jacking assembly 7 is located on the side of the throttle mounting block 6 remote from the test assembly 5, and the manipulator 8 is located on the side of the jacking assembly 7 remote from the throttle mounting block 6. The jacking assembly 7 is a cylinder or screw for producing a lift-out throttle output shaft 93. The handling device 8 is used for handling and jacking the jacking assembly 7. The operating device 8 is arranged according to the jacking assembly 7, and when the jacking assembly 7 is an oil cylinder, the operating device 8 consists of a pressure regulating valve and a series of control valves; if the jacking-up member 7 is a screw, the jacking-up member 7 is moved by screwing the screw without the need for the operating device 8.

Further, as a preferred implementation mode, still include guide rail slider assembly 2, guide rail slider assembly 2 is located the lower extreme of test assembly 5, and test assembly 5 passes through guide rail slider assembly 2 and is connected with base 1. The upper end of the guide rail sliding block component 2 is also provided with a plurality of threaded holes, and the testing component 5 is connected with the guide rail sliding block component 2 through the matching of bolts and the threaded holes. The guide rail sliding block assembly 2 comprises a guide rail and a sliding block arranged on the guide rail, and the testing assembly 5 is arranged at the upper end of the sliding block. The guide rail is laid on the base 1, and the guide rail sliding block component 2 is used for driving the sliding block to slide towards the direction of the throttle valve mounting block 6 along the guide rail.

Further, as a preferred embodiment, the air throttle device further comprises a screw assembly 3, the side of the guide rail slider assembly 2, which is far away from the throttle valve mounting block 6, is provided with the screw assembly 3, and the screw assembly 3 is arranged at the upper end of the base 1 and is used for driving the guide rail slider assembly 2. Screw rod component 3 is twisted, and the one end that screw rod component 3 is close to guide rail sliding block component 2 withstands guide rail sliding block component 2, withholds the slider and slides along the guide rail. The screw assembly 3 is connected with the base 1.

Further, as a preferred embodiment, the testing assembly 5 includes a mounting block 58, a clamping device 51, a shaft end retainer ring 52, a thrust disk 53, a spring 54, a linear bearing 55 and a measuring head 56, the mounting block 58 is disposed at the upper end of the guide rail slider assembly 2, the mounting block 58 is used for being connected with and synchronously moving with the guide rail slider assembly 2, the mounting block 58 is rectangular, and the mounting block 58 is connected with the guide rail slider assembly 2 through a bolt and a threaded hole in threaded fit. The side, close to the dial indicator 4, of the mounting block 58 is provided with a clamping device 51, and the clamping device 51 is used for clamping the dial indicator 4 so that the dial indicator 4 measures the displacement of the throttle output shaft 93. The mounting block 58 is provided with a placing groove 57, the inner wall of the placing groove 57 close to the clamping device 51 is provided with a shaft end retaining ring 52, one side of the shaft end retaining ring 52 far away from the clamping device 51 is provided with a thrust disc 53, one side of the mounting block 58 far away from the dial indicator 4 is provided with a measuring head 56, and the measuring head 56 partially extends into the placing groove 57. The micrometer gauge head of the micrometer gauge 4 sequentially penetrates through the clamping device 51, the shaft end retainer ring 52 and the thrust disc 53 and extends into the placing groove 57, the spring 54 is sleeved on the micrometer gauge head, and the micrometer gauge 4 gauge head 56 has certain elasticity. One side of the thrust disc 53, which is far away from the shaft end retainer ring 52, is connected with one side of the spring 54, the other side of the spring 54 is connected with the measuring head 56, one side of the measuring head 56, which is far away from the spring 54, penetrates through the mounting block 58 and is positioned on the outer side of the mounting block 58, and a linear bearing 55 is arranged between the measuring head 56 and the placement groove 57.

Further, as a preferred embodiment, after the dial indicator 4 is installed by the fixture device, the measuring head of the dial indicator is always in a compressed state and constantly abuts against the measuring head 56; the shaft end retainer ring 52 plays a role of axially limiting the thrust disc 53, so that one side of the spring 54 is connected to the thrust disc 53 and the other side of the spring presses the measuring head 56 whenever the spring 54 is in a compressed state, so that the measuring head 56 is always in an elastic extrusion state, when the measuring head 56 is stressed, the spring 54 is compressed, the compression amount of the spring 54 can be completely reflected to the measuring head of the dial indicator, and at the moment, the scale displayed by the dial indicator is compression displacement; the linear bearing 55 is provided to be engaged with the gauge head 56 because the gauge head 56 is provided with a sufficiently small axial compressive displacement resistance in order to provide the test module 5 with a sufficient response accuracy.

Further, as a preferred embodiment, the upper end of the throttle mounting block 6 is provided with a throttle valve 9, a throttle valve cover 91 is arranged on the side of the throttle valve 9 close to the measuring head 56, the throttle valve cover 91 is opposite to the measuring head 56, and a throttle valve gear box 92 is arranged on the side of the throttle valve 9 far away from the throttle valve cover 91. The throttle valve output shaft 93 is arranged in the throttle valve, the throttle valve end cover 91 is covered at one end of the throttle valve 9, the throttle valve gear box 92 is sleeved at the other end of the throttle valve 9, one end of the throttle valve output shaft 93 is tightly pressed against one end, close to the throttle valve 9, of the throttle valve end cover 91, and the other end of the throttle valve output shaft 93 is tightly pressed against one end, close to the throttle valve 9, of the throttle valve gear box 92. The jacking assembly 7 is provided with a jacking rod 71 at one side close to the throttle gear box 92. The jack 71 is used for jacking the throttle gear box 92. The throttle valve 9 comprises a throttle valve aluminum body 94, a throttle valve output shaft 93 and an output shaft limit pin 95, wherein the output shaft limit pin 95 is positioned between the throttle valve output shafts 93, and the throttle valve aluminum body 94 is positioned on two sides of the throttle valve output shaft 93.

The following describes a preferred measuring method of the axial clearance of the output shaft of the electronic throttle valve, and the measuring method comprises the following steps:

s1, installing the throttle valve 9 at the upper end of the throttle valve installation block 6, then driving a throttle valve plate of the throttle valve 9 to be in a fully opened state, and clearing the scale of the dial indicator 4 at the moment;

s2, screwing the screw assembly 3, wherein the screw assembly 3 pushes the guide rail sliding block assembly 2 to drive the testing assembly 5 to move towards the direction close to the throttle valve end cover 91, and when the measuring head 56 is not in contact with the throttle valve end cover 91, the scale of the dial indicator 4 is displayed as 0;

s3, after the measuring head 56 contacts the throttle end cover 91, the screw assembly 3 is continuously screwed to generate a thrust F1, the measuring head 56 retreats under the action of the thrust F1 and compresses the spring 54, the retreating displacement of the measuring head of the dial indicator is observed at the same time, and the screw assembly 3 is stopped being screwed when the retreating displacement of the measuring head of the dial indicator reaches a certain value;

s4 and clearing the scale of the dial indicator 4, wherein the throttle output shaft 93 is completely pushed to the throttle gear box 92, then the ejector rod 71 of the jacking assembly 7 extends out and jacks the throttle output shaft 93, the ejection force F2 is greater than the thrust F1, so that the throttle output shaft 93 is pushed to move from the throttle gear box 92 to the throttle end cover 91, and the numerical value displayed on the dial indicator 4 is the stroke of the throttle output shaft 93 moving from the throttle gear box 92 to the throttle end cover 91, namely the axial total gap X of the throttle output shaft 93.

As shown in fig. 3, the throttle output shaft 93 has a throttle cover 91 on the left side and a throttle gear box 92 on the right side, wherein the movable gap between the throttle output shaft and the throttle gear box is X1, the movable gap between the throttle output shaft and the throttle gear box is X2, and the total distance X is the sum of X1 and X2. As illustrated in fig. 4 and 5, the black position is a contact position.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims (7)

1. The utility model provides an electronic throttle valve output shaft axial clearance measuring device, its characterized in that, including base, amesdial, test assembly and install in throttle valve installation piece, jack-up subassembly and controlling means on the base, the upper end of base is equipped with the amesdial, one side of amesdial is equipped with the test assembly, one side that the test assembly kept away from the amesdial is equipped with the throttle valve installation piece, the jack-up subassembly is located one side that the test assembly was kept away from to the throttle valve installation piece, controlling means is located one side that the throttle valve installation piece was kept away from to the jack-up subassembly.

2. The device for measuring the axial clearance of the output shaft of the electronic throttle valve as claimed in claim 1, characterized by further comprising a guide rail slider assembly, wherein the guide rail slider assembly is positioned at the lower end of the testing assembly, and the testing assembly is connected with the base through the guide rail slider assembly.

3. The device for measuring the axial gap of the output shaft of the electronic throttle valve as claimed in claim 2, further comprising a screw assembly, wherein the screw assembly is arranged on the side of the guide rail sliding block assembly away from the throttle valve mounting block, and the screw assembly is arranged at the upper end of the base for driving the guide rail sliding block assembly.

4. The device for measuring the axial clearance of the output shaft of the electronic throttle valve as claimed in claim 2, wherein the testing assembly comprises a mounting block, a clamping device, a shaft end retaining ring, a thrust disk, a spring, a linear bearing and a measuring head, the mounting block is arranged at the upper end of the guide rail sliding block assembly, the clamping device is arranged on one side of the mounting block close to the dial indicator, a placing groove is formed in the mounting block, the shaft end retaining ring is arranged on the inner wall of one side of the placing groove close to the clamping device, the thrust disk is arranged on one side of the shaft end retaining ring away from the clamping device, the measuring head is arranged on one side of the mounting block away from the dial indicator, the measuring head partially extends into the placing groove, the measuring head of the dial indicator sequentially passes through the clamping device, the shaft end retaining ring and the thrust disk and extends into the placing groove, the spring is sleeved on the measuring head of the dial indicator, one side, far away from the shaft end check ring, of the thrust disc is connected with one side of the spring, the other side of the spring is connected with the measuring head, one side, far away from the spring, of the measuring head penetrates through the mounting block and is located on the outer side of the mounting block, and the linear bearing is arranged between the measuring head and the placing groove.

5. The device for measuring the axial clearance of the output shaft of the electronic throttle valve as claimed in claim 4, wherein a throttle valve is arranged at the upper end of the throttle valve mounting block, a throttle valve end cover is arranged on one side of the throttle valve close to the measuring head, the throttle valve end cover is opposite to the measuring head, and a throttle valve gear box is arranged on one side of the throttle valve far away from the throttle valve end cover.

6. The electronic throttle output shaft axial gap measuring device as defined in claim 5, wherein the guide rail slider assembly comprises a guide rail and a slider arranged on the guide rail, and the testing assembly is arranged at the upper end of the slider.

7. An electronic throttle output shaft axial gap measuring device as set forth in claim 5, characterized in that the jack assembly is provided with a jack rod on a side close to the throttle gear box.

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