CN211205147U

CN211205147U - Sensor installation clearance measuring tool

Info

Publication number: CN211205147U
Application number: CN202020227581.3U
Authority: CN
Inventors: 宁琨
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-08-07
Anticipated expiration: 2030-02-28

Abstract

The utility model discloses a sensor mounting clearance measuring tool, belonging to the measuring tool, solving the problem of inaccurate measurement when a depth vernier caliper is used for measuring the sensor mounting clearance; the measuring tool comprises a positioning sleeve with a sensor inserted into the top, a through hole is formed in the positioning sleeve, a scale surface is arranged on one side of the positioning sleeve, an observation window is formed in the scale surface, scales arranged along the axial direction are arranged on the outer side of the observation window, a measuring rod is movably inserted into the bottom of the positioning sleeve, a guide hole is formed in the other side of the positioning sleeve, and a driving rod penetrating through the guide hole is screwed on the measuring rod. The utility model discloses can accurate positioning signal disc tooth top peak to realize the accurate measurement in sensor installation clearance.

Description

Sensor installation clearance measuring tool

Technical Field

The utility model relates to a measuring tool, more specifically say, especially relate to a sensor installation clearance measuring tool.

Background

When the engine works, the information such as the rotating speed of each moving part and the like, such as the rotating speed of a camshaft, needs to be detected by a sensor. In order to ensure the accuracy of detection, it is necessary to ensure that the gap between the end face of the sensor probe and the tooth crest height of the signal disc meets the design requirements. If the design requirements are not met, the sensor shim is selected to have a different thickness to meet the design requirements. Use degree of depth slide caliper to measure this clearance among the prior art, degree of depth slide caliper's frame terminal surface is near the sensor installation face at the part during measurement, degree of depth slide caliper blade terminal surface tightly leans on signal disc addendum point (the tangent point of addendum circle), carry out the reading from degree of depth slide caliper, because the signal disc has been installed inside the part, the signal disc can not be observed in the actual measurement, and degree of depth slide caliper blade terminal surface is smaller, during the actual measurement, it leans on signal disc addendum point to be difficult to the accuracy, thereby cause and measure inaccurately.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sensor installation clearance measuring tool utilizes this measuring tool can accurate positioning signal dish tooth top peak to accurate measurement sensor's installation clearance.

The utility model adopts the technical scheme as follows:

the utility model provides a sensor installation clearance measuring tool, includes that the top is pegged graft there is the position sleeve of sensor, the through-hole has been seted up in the position sleeve, position sleeve one side is provided with the scale face, the observation window has been seted up on the scale face, the scale face is in the observation window outside is provided with along the scale of axial arrangement, the bottom activity of position sleeve is pegged graft there is the measuring stick, the guiding hole has been seted up to the position sleeve opposite side, it has passed to spin-joint on the measuring stick the driving lever of guiding hole.

Further, the top end of the observation window extends to the upper part of the measuring head of the sensor.

Further, there are two scales, and they are located the both sides of observation window respectively.

Further, the bottom end of the guide hole extends to the lower side of the observation window.

Furthermore, a sliding section which is inserted into the guide hole is arranged on the shifting lever, and the diameter of the sliding section is smaller than the width of the guide hole.

Further, the diameter of the measuring rod is smaller than that of the through hole.

Further, the scale surface is a plane parallel to the axis of the positioning sleeve.

Compared with the prior art, the utility model discloses the beneficial effect who has does: this measuring tool includes the position sleeve that the top was pegged graft and is had the sensor, position sleeve one side is provided with the scale surface, the observation window has been seted up on the scale surface, the scale surface is provided with along the scale that the axial was arranged in the observation window outside, the bottom activity of position sleeve is pegged graft and is had the measuring stick, when the bottom surface of measuring stick and the highest point contact (tangent) of circular signal dish addendum height, clearance between the top surface through observing the measuring stick and the side head terminal surface of sensor, and compare the scale in the observation window outside, can the required sensor gasket's of accurate measurement thickness, and convenient for operation, the measuring result is accurate.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a front view of the positioning sleeve of FIG. 1;

FIG. 3 is a schematic view of the structure taken along line A-A of FIG. 2;

FIG. 4 is a schematic view of the structure taken along line B-B of FIG. 2;

FIG. 5 is a schematic view of the construction of the measuring rod of FIG. 1;

FIG. 6 is a schematic structural view of the shift lever of FIG. 1;

FIG. 7 is a schematic diagram of the sensor of FIG. 1;

in the figure, the measuring instrument comprises a positioning sleeve 1, a positioning sleeve 11, a through hole 12, a scale surface 13, an observation window 14, scales 15, a guide hole 2, a measuring rod 21, a threaded hole 3, a deflector rod 31, a sliding section 32, a threaded section 33, a screwdriver groove 4 and a sensor.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the following detailed description, but the present invention is not limited thereto.

Referring to fig. 1 to 7, the utility model discloses a sensor installation clearance measuring tool, it has sensor 4's position sleeve 1 to peg graft including the top, through-hole 11 has been seted up in the

position sleeve

1, 1 one side of position sleeve is provided with scale face 12, observation window 13 has been seted up on scale face 12, scale face 12 is provided with along the scale 14 that the axial was arranged in the observation window 13 outside, the bottom activity of position sleeve 1 is pegged graft and is had measuring stick 2, guiding hole 15 has been seted up to 1 opposite side of position sleeve, the driving lever 3 that passes guiding hole 15 has been pegged graft on measuring stick 2. Threaded holes 21 are formed in the measuring rod 2, threaded sections 32 matched with the threaded holes 21 are arranged on the shifting rod 3, and the shifting rod 3 can be screwed on the measuring rod 2 through the matching between the threaded sections 32 and the threaded holes 21. The cross section of the shift lever 3 is provided with a screwdriver groove 33, and the shift lever 3 can be fast screwed on the measuring rod 2 through the screwdriver groove 33. When measuring, insert measuring stick 2 in the sensor 4 mounting hole of part, the sensor 4 mounting plane of part is hugged closely to the bottom surface of measuring stick 2, stirs driving lever 3 and pushes down, when the bottom surface of measuring stick 2 and the highest point contact of circular signal dish addendum height, can accurately reachd the thickness of required sensor 4 gasket through the scale 14 in the observation window 13 outside.

Preferably, the top end of the observation window 13 extends to the upper side of the measuring head of the sensor 4, so that the position of the measuring head of the sensor 4 can be observed conveniently.

Preferably, there are two scales 14 respectively located at both sides of the observation window 13, so that the accuracy of the detection result can be improved by the two scales 14, and the installation gap of the sensor 4 can be conveniently measured from different directions.

Preferably, the bottom end of the guide hole 15 extends to the lower part of the observation window 13, so that the measuring rod 2 can be conveniently moved up and down through the deflector rod 3, the measurement of the installation clearance of different sensors 4 is adapted, and the up-down position of the measuring rod 2 can be limited through the guide hole 15.

Preferably, the shift lever 3 is provided with a sliding section 31 inserted into the guide hole 15, and the diameter of the sliding section 31 is smaller than the width of the guide hole 15, so that the shift lever 3 can slide up and down in the guide hole 15.

Preferably, the diameter of the measuring rod 2 is smaller than that of the through hole 11, so that the measuring rod 2 is in clearance fit with the through hole 11 of the positioning sleeve 1, and the measuring rod 2 can freely slide in the through hole 11 of the positioning sleeve 1.

Preferably, the scale surface 12 is a plane parallel to the axis of the position sleeve 1, so that the gap between the measuring end of the sensor 4 and the top surface of the measuring rod 2 can be observed conveniently through the scale 14.

Be provided with the handle at the offside of the guiding hole 15 of position sleeve 1, position sleeve 1 can conveniently take through this handle, simultaneously the convenience is through reciprocating driving lever 3, and then drive measuring stick 2 and remove, the cover is equipped with the rubber pad on sliding section 31 of driving lever 3, when screwing driving lever 3 on measuring stick 2, the terminal surface of the sliding section of driving lever 3 compresses tightly the rubber pad, and then make the rubber pad compress tightly on position sleeve 1, thereby can fix the position of measuring stick 2 in position sleeve 1, be convenient for when the highest point contact of lower terminal surface and centre of a circle signal panel addendum height of measuring stick 2, through the position of fixed measuring stick 2, and then read the clearance between the up end of measuring stick 2 and the side head terminal surface of sensor 4 through scale 14, make the reading more accurate.

Above-mentioned measuring tool is when using, peg graft sensor 4 in position sleeve 1, make sensor 4's gauge head end extend to in position sleeve 1's the through-hole 11, the up end of position sleeve 1 is hugged closely to sensor 4's locating surface this moment, then hold position sleeve 1, insert in the sensor 4 mounting hole of part measuring rod 2, the sensor 4 mounting plane of part is hugged closely to measuring rod 2's lower extreme, the driving lever 3 is stirred and is pushed down to the finger, when measuring rod 2's lower terminal surface and the highest point contact of circular signal dish addendum height, through the clearance between the top surface of 14 side head terminal surfaces of measuring sensor 4 and measuring rod 2 of scale, thereby reachs the thickness of required sensor 4 gaskets. 2 end faces of measuring rod in this measuring tool are enough big, can pinpoint the signal disc addendum peak, solved slide caliper need relatively high measurement skill and because its terminal surface area is too little and be difficult to the problem of the peak of accurately finding the signal disc addendum, this measuring tool has compromise the manufacturing error of sensor 4 and the position error of signal disc assembly back on the engine simultaneously, audio-visual demonstration stack error between them, thereby can the required 4 gasket thicknesses of sensor of accurate measurement, high reliability convenience for operation, the measuring result is accurate, and do not need the operator to have higher measurement level alright realize measuring.

The above description is only for the preferred embodiment of the present invention, and all modifications, equivalents, improvements and the like made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A sensor installation clearance measuring tool, its characterized in that: the positioning sleeve (1) with the sensor (4) is spliced at the top, a through hole (11) is formed in the positioning sleeve (1), a scale face (12) is arranged on one side of the positioning sleeve (1), an observation window (13) is formed in the scale face (12), the scale face (12) is arranged on the outer side of the observation window (13) and is provided with scales (14) arranged along the axial direction, a measuring rod (2) is movably spliced at the bottom of the positioning sleeve (1), a guide hole (15) is formed in the other side of the positioning sleeve (1), and a shifting rod (3) penetrating through the guide hole (15) is rotationally connected on the measuring rod (2).

2. A sensor mounting clearance measuring tool according to claim 1, wherein: the top end of the observation window (13) extends to the upper part of the measuring end head of the sensor (4).

3. A sensor mounting clearance measuring tool according to claim 1, wherein: the scales (14) are two and are respectively positioned at two sides of the observation window (13).

4. A sensor mounting clearance measuring tool according to claim 1, wherein: the bottom end of the guide hole (15) extends to the lower part of the observation window (13).

5. A sensor mounting clearance measuring tool according to claim 1, wherein: the shifting rod (3) is provided with a sliding section (31) which is inserted into the guide hole (15), and the diameter of the sliding section (31) is smaller than the width of the guide hole (15).

6. A sensor mounting clearance measuring tool according to claim 1, wherein: the diameter of the measuring rod (2) is smaller than that of the through hole (11).

7. A sensor mounting clearance measuring tool according to claim 1, wherein: the scale surface (12) is a plane parallel to the axis of the positioning sleeve (1).