CN216869399U - Detection apparatus for engine cooling water pump water seal working height - Google Patents
Detection apparatus for engine cooling water pump water seal working height Download PDFInfo
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- CN216869399U CN216869399U CN202220334065.XU CN202220334065U CN216869399U CN 216869399 U CN216869399 U CN 216869399U CN 202220334065 U CN202220334065 U CN 202220334065U CN 216869399 U CN216869399 U CN 216869399U
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Abstract
The utility model belongs to the technical field of inspection equipment of an engine cooling water pump, and particularly relates to a device for detecting the working height of a water seal of the engine cooling water pump, which comprises a dial indicator, an end cover, an inspection body, a calibration block and a detection shaft, wherein a stepped hole and a shaft shoulder of the inspection body are designed in the inspection body, so that the detection shaft does not separate from the inspection body in the downward movement, the detection shaft is in clearance fit with a middle hole of the inspection body, the detection shaft is ensured not to shake in the upward and downward movement, a first blind hole of the detection shaft is in clearance fit with a rotating shaft of the cooling water pump, the positioning effect is realized, the detection position can be fixed at the same time, a first exhaust hole covers the upward and downward movement range of a second exhaust hole, air in the first blind hole can be exhausted in the measurement process, the detection shaft completely falls on the end face of the water seal, the calibration block is utilized to calibrate the dial indicator in advance, so that the offset of the water seal height can be directly displayed by the dial indicator in the actual detection process, the utility model solves the problems of inaccurate measurement and complicated steps in the related technology.
Description
Technical Field
The utility model belongs to the technical field of inspection equipment of an engine cooling water pump, and particularly relates to a detection device for the working height of a water seal of the engine cooling water pump.
Background
In the assembling process of the engine cooling water pump, the height of the water seal has a standard value, and after the water seal is installed, the height of the water seal needs to be detected, so that quality defects are avoided.
At present, a vernier caliper, a depth gauge and the like are generally adopted for detecting the water seal height, but the contact surface between the detection and the water seal is narrow, the verticality of the vernier caliper or the depth gauge cannot be kept, the measurement precision is influenced, in addition, the difference value between the current water seal height and the standard water seal height cannot be visually displayed by the numerical value measured by the vernier caliper or the depth gauge, the difference value with the standard water seal height needs to be compared with the standard height after the numerical value is recorded every time, and then the difference value with the standard water seal height is calculated, so that the steps are complicated.
SUMMERY OF THE UTILITY MODEL
The utility model provides a device for detecting the working height of a water seal of an engine cooling water pump, which solves the problems of inaccurate measurement and complicated steps in the process of detecting the height of the water seal of the engine cooling water pump in the related technology.
According to one aspect of the utility model, the application provides a device for detecting the water seal working height of an engine cooling water pump, which comprises a dial indicator, an end cover, a detector body, a calibration block and a detection shaft, wherein the dial indicator is detachably connected to the end cover, the end cover is fixedly connected to the detector body, the calibration block is movably arranged below the inner part of the detector body, a stepped first through hole is arranged at the axis of the detector body, the first through hole comprises an upper hole, a middle hole and a lower hole, the diameter of the upper hole is larger than that of the middle hole, the diameter of the middle hole is smaller than that of the lower hole, the detection shaft is in clearance fit with the middle hole, a shaft shoulder is arranged at the upper part of the detection shaft, the shaft shoulder is positioned in the upper hole, the diameter of the shaft shoulder is larger than that of the middle hole and smaller than that of the upper hole, and a first blind hole is arranged at the bottom surface of the detection shaft, the first blind hole is in clearance fit with a rotating shaft of the cooling water pump, a second exhaust hole is formed in the side face of the detection shaft and corresponds to the top of the first blind hole, a first exhaust hole is formed in the side face of the detection tool body, and the first exhaust hole covers the up-down moving range of the second exhaust hole.
Further, the end cover is of a cylindrical structure, the detection tool body is of a cylindrical structure, the diameter of the detection tool body is the same as that of the end cover, and the detection shaft is of a cylindrical structure.
Furthermore, the end cover, the detection body and the detection shaft are all of three-dimensional structures with square cross sections.
Furthermore, the end cover passes through the bolt with examine a body fixed connection, end cover axle center department is equipped with and is used for holding the telescopic second through-hole of percentage table, the end cover side is equipped with first screw thread through-hole, the first screw in-connection has fastening bolt.
Furthermore, the bottom of the detection shaft is provided with an arc-shaped bulge, the top of the detection shaft is provided with a cylindrical head, the top surface of the cylindrical head is abutted to the position below the measuring head of the dial indicator, one end of a spring is sleeved on the cylindrical head, and the other end of the spring is abutted to the position below the end cover and positioned at the second through hole.
Furthermore, the calibration block comprises a base and a calibration block, the calibration block is integrally connected above the base, the height of the calibration block is equal to the standard value of the height of the water seal of the cooling water pump to be measured, the calibration block is cylindrical, and the diameter of the calibration block is smaller than that of the lower hole.
The utility model has the advantages that:
according to the detection device for the water seal working height of the engine cooling water pump, the diameter of the upper hole is larger than that of the middle hole, so that a step is formed in the detection tool body, the upper part of the detection shaft is provided with the shaft shoulder, the shaft shoulder is positioned in the upper hole, the diameter of the shaft shoulder is larger than that of the middle hole and smaller than that of the upper hole, and the structural design can ensure that the detection shaft does not break away from the detection tool body in downward movement; the detection shaft is in clearance fit with the middle hole, so that the detection shaft is prevented from shaking left and right during measurement, and the measurement precision is ensured; the bottom surface of the detection shaft is provided with a first blind hole which is in clearance fit with a rotating shaft of the cooling water pump, so that the detection shaft has a positioning effect and can fix a detection position, and the cylindrical head above the detection shaft is directly contacted with a measuring head of the dial indicator, so that the movement of the detection shaft in the vertical direction is transmitted to the measuring head of the dial indicator without error, and the measurement precision is ensured; in conclusion, the detection device for the water seal working height of the engine cooling water pump can solve the problem that the measurement is not accurate when the water seal height of the engine cooling water pump is detected, meanwhile, the dial indicator is calibrated in advance by the aid of the calibration block, the pointer of the dial indicator is set to be zero when the water seal height is set to be a standard value X, in the actual detection process, the problem that the offset is converted and the steps are complicated after the reading of the depth gauge or the vernier caliper when the water seal height of the engine cooling water pump is detected in the related technology is solved.
Drawings
FIG. 1: the structure of embodiment 1 of the utility model is schematically shown;
FIG. 2: a cross-sectional view of embodiment 1 of the present invention;
FIG. 3: a specific structural schematic diagram in embodiment 1 of the present invention;
FIG. 4: the structure schematic diagram of the measuring shaft in the embodiment 1 of the utility model;
FIG. 5: a sectional view at the time of detection of embodiment 1 of the present invention;
FIG. 6: a specific structural schematic diagram in embodiment 2 of the present invention;
FIG. 7: the structure of the measuring shaft in embodiment 2 of the utility model is schematically shown.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the preset purposes, the following detailed description is given to the specific implementation modes, structures, characteristics and effects of the present invention with reference to the accompanying drawings and preferred embodiments.
It should be noted that the terms "first," "second," and the like in the description and in the claims of this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, it being understood that the terms so used are interchangeable under appropriate circumstances.
It should be noted that in this application, where the context requires no explicit mention, the use of directional terms such as "upper, lower, top, bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in a vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the utility model.
Example 1:
according to the drawings from 1 to 5, the device for detecting the water seal working height of the engine cooling water pump comprises a dial indicator 1, an end cover 2, a detection body 3, a detection shaft 4 and a calibration block 5.
End cover 2 is the cylinder structure, and 2 axle center departments of end cover are equipped with and are used for holding the telescopic second through-hole of percentage table 1, and 2 sides of end cover are equipped with first screw thread through-holes, and first screw thread through-hole in-connection has tightly decides the bolt, can install percentage table 1 on the second through-hole through tightly deciding the bolt, is equipped with 4 first connecting holes on the end cover 2.
Examine specific 3 and be the cylinder structure, it is the same with end cover 2 contact part diameter and end cover 2's diameter, whole look more pleasing to the eye like this, examine and correspond first connecting hole position on specific 3, be provided with the second threaded connection hole of the same quantity, utilize connecting bolt can be with end cover 2 fixed connection examine specific 3 on, it is equipped with the first through-hole of echelonment to examine 3 axle center departments of the body, first through-hole includes the hole, mesopore and lower hole, it is greater than mesopore diameter to go up the hole diameter, mesopore diameter is less than lower hole diameter, it is the plane to examine 3 bottoms of the body, the laminating is on engine cooling water pump water seal stationary ring seat circle terminal surface, embody the reference key element.
The detection shaft 4 is of a cylindrical structure, the middle part of the detection shaft 4 is in clearance fit with the middle hole of the detection tool body 3, so that the detection shaft 4 does not shake left and right in the detection process, the detection accuracy is improved, a shaft shoulder is arranged at the upper part of the detection shaft 4 and is positioned in the upper hole of the detection tool body 3, the diameter of the shaft shoulder is larger than that of the middle hole and smaller than that of the upper hole, the structural design can ensure that the detection shaft 4 does not break away from the detection tool body 3 in the downward movement, a first blind hole extending upwards is arranged at the bottom surface of the detection shaft 4 and is in clearance fit with a rotating shaft 7 of an engine cooling water pump, the positioning function is achieved, the detection position can be fixed, the detection accuracy is improved, a second exhaust hole is arranged at the position, which corresponds to the top of the first blind hole, a first exhaust hole is arranged at the side surface of the detection tool body 3, and the first exhaust hole completely covers the up-down movement range of the second exhaust hole, the air in the first blind hole is conveniently discharged in the measuring process, so that the detection shaft 4 completely falls on the end face of the rotating ring of the water seal of the engine cooling water pump, the measuring precision is ensured, an arc-shaped bulge is arranged below the detection shaft 4 and is in contact with the end face of the rotating ring of the water seal of the engine cooling water pump, the measured element is embodied, the top of the detection shaft 4 is provided with a cylindrical head, the top face of the cylindrical head is abutted to the lower part of the measuring head of the dial indicator, one end of the spring 6 is sleeved on the cylindrical head, the other end of the spring 6 is abutted to the lower part of the end cover 2 and is positioned at the position of the second through hole, the design of the spring 6 plays a role of buffering in the upward movement of the measuring head of the dial indicator 1, and the service life of the measuring head is prolonged.
The proof block 5 comprises a base and a calibration block, the calibration block is integrally connected above the base, the height of the calibration block is equal to the standard value X of the height of the water seal 8 of the measured cooling water pump, the calibration block is cylindrical, the diameter of the calibration block is smaller than the diameter of the lower hole of the checking body 3, and the proof block 5 is inserted into the lower hole of the checking body 3.
In specific use, the following steps are carried out
1S: calibrating the device by using a calibration block 5, inserting the calibration block 5 into a lower hole of the detection tool body 3, and setting the pointer of the dial indicator 1 to be zero;
2S: the device is used for detecting the working height of the water seal 8, the detection shaft 4 is slowly sleeved on the rotating shaft 7 of the engine water pump, and after the pointer of the dial indicator 1 is stable, the dial indicator 1 directly displays the offset of the height of the water seal 8;
3S: after detecting a position, the device is lifted up, rotates 60 degrees in the air, then the offset of the height of the water seal 8 is detected, after detecting six points, the device rotates for a circle, and the fluctuation range of the pointer of the dial indicator 1 is the end face jumping value of the movable ring of the water seal 8.
Example 2
According to the drawings of fig. 6 and 7, the detecting tool body 10 and the detecting shaft 11 are both of a three-dimensional structure with a square cross section, the cross section of an end cover (not shown in the drawings) is also of a three-dimensional structure with a square cross section, the size of the cross section is the same as that of the detecting tool body 10, the middle part of the detecting shaft 11 is in clearance fit with the middle hole of the detecting tool body 10, so that the detecting shaft 11 does not shake in the detecting process, the detecting accuracy is improved, a shaft shoulder is arranged at the upper part of the detecting shaft 11 and is positioned in the upper hole of the detecting tool body 10, the diameter of the shaft shoulder is larger than that of the middle hole and smaller than that of the upper hole, the structural design can ensure that the detecting shaft 11 does not break away from the detecting tool body 10 in the downward movement, a first blind hole extending upwards is arranged on the bottom surface of the detecting shaft 11, the first blind hole is in clearance fit with the rotating shaft 7 of the cooling water pump, the positioning function is realized, the detecting position can be fixed, and the detecting accuracy is improved, the side surface of the detection shaft 11 is provided with a second exhaust hole corresponding to the top of the first blind hole, the side surface of the detection tool body 10 is provided with a first exhaust hole, the first through hole exhaust hole is of a groove-shaped structure, the first exhaust hole covers the up-down moving range of the second exhaust hole so as to be convenient for exhausting air in the first blind hole in the measurement process, the detection shaft 11 completely falls on the end surface of a moving ring of the water seal 8 of the engine cooling water pump and ensure the measurement precision, an arc-shaped bulge is arranged below the detection shaft 11 and is contacted with the end surface of the moving ring of the water seal 8 of the engine cooling water pump to embody the measured element, the top of the detection shaft 11 is provided with a cylindrical head, the top surface of the cylindrical head is propped against the lower part of the measuring head of the dial indicator 1, one end of the spring 6 is sleeved on the cylindrical head, the other end of the spring 6 is propped against the lower part of the end cover 2 and is positioned at the second through hole, and the design of the spring 6 plays a buffer role in the upward movement of the measuring head of the dial indicator 1, the service life of the measuring head is prolonged.
Examine the body 10, detect the cross section of axle 11 and end cover and be the square, such structural design can drive the rotation that detects axle 11 when rotating and examining body 10 to realize the continuous detection of 8 rotating ring end face runouts of engine cooling water pump water seal, rather than the multiple spot detects, measure more accurately.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (6)
1. A detection device for the water seal working height of an engine cooling water pump comprises a dial indicator, an end cover, a detection body, a calibration block and a detection shaft, wherein the dial indicator is detachably connected to the end cover, the end cover is fixedly connected to the detection body, the calibration block is movably arranged below the inner portion of the detection body, and the detection device is characterized in that a step-shaped first through hole is arranged at the center of the detection body and comprises an upper hole, a middle hole and a lower hole, the diameter of the upper hole is larger than that of the middle hole, the diameter of the middle hole is smaller than that of the lower hole, the detection shaft is in clearance fit with the middle hole, a shaft shoulder is arranged at the upper portion of the detection shaft and is positioned in the upper hole, the diameter of the shaft shoulder is larger than that of the middle hole and smaller than that of the upper hole, a first blind hole is arranged on the bottom surface of the detection shaft and is in clearance fit with a rotating shaft of the cooling water pump, the side surface of the detection shaft is provided with a second exhaust hole corresponding to the top of the first blind hole, the side surface of the detection tool body is provided with a first exhaust hole, and the first exhaust hole covers the up-down moving range of the second exhaust hole.
2. The device for detecting the water seal working height of the engine cooling water pump according to claim 1, wherein the end cover is of a cylindrical structure, the detection tool body is of a cylindrical structure, the diameter of the detection tool body is the same as that of the end cover, and the detection shaft is of a cylindrical structure.
3. The device for detecting the water seal working height of the engine cooling water pump according to claim 1, wherein the end cover, the detector body and the detection shaft are all of three-dimensional structures with square cross sections.
4. The device for detecting the water seal working height of the engine cooling water pump according to claim 2, wherein the end cover is fixedly connected with the detection tool body through a bolt, a second through hole for accommodating the dial indicator sleeve is formed in the axis of the end cover, a first threaded through hole is formed in the side face of the end cover, and a fastening bolt is connected in the first thread.
5. The device for detecting the water seal working height of the engine cooling water pump according to claim 4, wherein an arc-shaped protrusion is arranged at the bottom of the detection shaft, a cylindrical head is arranged at the top of the detection shaft, the top surface of the cylindrical head abuts against the lower part of the measuring head of the dial indicator, one end of the spring is sleeved on the cylindrical head, and the other end of the spring abuts against the lower part of the end cover and is positioned at the second through hole.
6. The device for detecting the water seal working height of the cooling water pump of the engine as claimed in claim 5, wherein the calibration block comprises a base and a calibration block, the calibration block is integrally connected above the base, the height of the calibration block is equal to the standard value X of the water seal height of the cooling water pump to be detected, and the calibration block is cylindrical and has a diameter smaller than the diameter of the lower hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220334065.XU CN216869399U (en) | 2022-02-18 | 2022-02-18 | Detection apparatus for engine cooling water pump water seal working height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220334065.XU CN216869399U (en) | 2022-02-18 | 2022-02-18 | Detection apparatus for engine cooling water pump water seal working height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216869399U true CN216869399U (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220334065.XU Active CN216869399U (en) | 2022-02-18 | 2022-02-18 | Detection apparatus for engine cooling water pump water seal working height |
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| Country | Link |
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| CN (1) | CN216869399U (en) |
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- 2022-02-18 CN CN202220334065.XU patent/CN216869399U/en active Active
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