CN120274700A - Device and method for measuring axial gap of tapered roller bearings assembled back to back - Google Patents
Device and method for measuring axial gap of tapered roller bearings assembled back to back Download PDFInfo
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- CN120274700A CN120274700A CN202510764571.0A CN202510764571A CN120274700A CN 120274700 A CN120274700 A CN 120274700A CN 202510764571 A CN202510764571 A CN 202510764571A CN 120274700 A CN120274700 A CN 120274700A
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- tapered roller
- roller bearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a back-to-back assembly tapered roller bearing axial gap measuring device and method, which relate to the technical field of bearing detection and comprise a positioning counter force supporting plate, a measured workpiece assembly and a measuring mechanism, wherein the measured workpiece assembly comprises an upper shell, a lower shell and a transmission shaft, the transmission shaft is provided with a gland close to the upper shell, the upper side of the gland is provided with the measuring mechanism, the upper shell and the lower shell are connected through a first mounting bolt to form an accommodating space, the tapered roller bearings are mounted on the transmission shaft back-to-back, the axial position is primarily adjusted by the gland, an adjusting pad and a standard pad, the measuring mechanism realizes automatic control of a measuring process, in the measuring method, firstly, the second tapered roller bearing is used as a reference to measure the initial height h11 of the gland, the transmission shaft is driven to simulate the working state of the bearing and measure h12 after the height of the gland is adjusted, the axial gap delta h is calculated through a formula and is compared with the standard range, and the axial gap delta h is repeatedly adjusted until the design requirement is met.
Description
Technical Field
The invention relates to the technical field of bearing detection, in particular to a device and a method for measuring axial clearance of a tapered roller bearing assembled back to back.
Background
The tapered roller bearing assembled back to back is widely applied to various mechanical equipment by virtue of good bearing capacity and rigidity. The axial play of the bearing has a decisive influence on the operating accuracy, stability and service life of the device. The axial clearance is too small, so that the bearing is overheated due to friction heat generation, the aging of the bearing is accelerated, and the bearing is blocked when serious, thereby influencing the normal operation of the equipment;
At present, the traditional tapered roller bearing axial clearance measurement method has a plurality of defects. The part of measurement mode relies on manual operation and experience to judge, and measurement accuracy is low, inefficiency, is difficult to satisfy modern high accuracy mechanical manufacturing's demand and some automation measurement equipment structure complicacy, and is with high costs, and is few to the special measuring device of back-to-back assembly tapered roller bearing, can't accurate adaptation its unique assembly structure and measurement requirement. Accordingly, one skilled in the art provides a device and a method for measuring axial clearance of tapered roller bearings assembled back-to-back to solve the above-mentioned problems in the prior art.
Disclosure of Invention
The invention aims to provide a device and a method for measuring axial clearance of tapered roller bearings assembled back to back, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a back-to-back assembly tapered roller bearing axial gap measuring device, includes location counter force backup pad, is surveyed workpiece assembly and measuring mechanism, the second mounting bolt can be dismantled to location counter force backup pad below, it includes casing, lower casing and transmission shaft to survey workpiece assembly, and location counter force backup pad can dismantle through the second mounting bolt has the transmission shaft, and the transmission shaft is located between casing and the lower casing, and the transmission shaft is provided with the gland near last casing, and goes up the casing and can dismantle through the gland has second tapered roller bearing, and the gland upside is provided with measuring mechanism.
As a further scheme of the invention, the workpiece assembly to be tested comprises a pressing plate, a first input wheel, a first tapered roller bearing, a transmission shaft, a gland, bolts, an adjusting pad, a second tapered roller bearing and a second input wheel, wherein one side of the upper shell, which is close to the lower shell, is annularly provided with a first mounting bolt, the upper shell is detachably provided with the lower shell through the first mounting bolt, one side of the second mounting bolt, which is close to the lower shell, is provided with the pressing plate, one side of the pressing plate is provided with the first input wheel on the transmission shaft, and a second input wheel is arranged between the upper shell and the lower shell on the transmission shaft.
As a still further proposal of the invention, the upper side of the gland is provided with a bolt, the gland is movably connected with a transmission shaft through the bolt, and the gland and the transmission shaft are detachably provided with an adjusting pad on the bolt.
As a still further proposal of the invention, the clearance delta h between the transmission shaft and the gland is expressed as follows:
ΔL=h12-h11, Δh=L-ΔL=L-h12+h11;
L is a standard pad actual measurement value, h11 is the height of the gland measured by taking the second tapered roller bearing as a reference, and h12 is the height of the gland measured by taking the second tapered roller bearing as a reference.
As a still further scheme of the invention, the measuring mechanism comprises a positioning sleeve, a displacement sensor bracket, a displacement sensor, a guide shaft, a reset spring, a sliding sleeve, a guide shaft limiting surface, a trigger switch, a guide shaft trigger surface, a hanging ring, a second screw and a displacement sensor measuring head, wherein the positioning sleeve is detachable at the upper side of a gland, the displacement sensor bracket is arranged at two sides of the positioning sleeve, the displacement sensor is arranged on the displacement sensor bracket, the displacement sensor measuring head is arranged below the displacement sensor, the sliding sleeve is arranged at one side of the positioning sleeve far away from the gland, the guide shaft is connected in the sliding sleeve in a sliding manner, the end surface of the positioning sleeve is in a threaded structure, one side of the guide shaft close to the positioning sleeve is in a threaded structure, and threads are matched with each other between the guide shaft and the positioning.
As a still further scheme of the invention, one side of the guide shaft far away from the locating sleeve is fixedly connected with a guide shaft limiting surface, a lifting ring is fixedly connected on the guide shaft limiting surface, a trigger switch is arranged between the lifting ring and the guide shaft limiting surface, and one side of the guide shaft far away from the trigger switch is provided with a guide shaft trigger surface.
As a still further scheme of the invention, a reset spring is sleeved on the guide shaft between the positioning sleeve and the sliding rail, the guide shaft and the sliding sleeve are respectively fixedly connected to two ends of the reset spring, the position between the measuring head of the displacement sensor and the second tapered roller bearing is matched with each other, and a screw is arranged in the positioning sleeve and is matched with the reset spring.
As a still further proposal of the invention, the trigger switch is a photoelectric trigger switch, and the trigger switch is electrically connected with the guide shaft limiting surface and the guide shaft trigger surface.
As a still further proposal of the invention, the displacement sensor is a high-precision linear displacement sensor which is in communication connection with an external data processing terminal and is used for transmitting measurement data to the external data processing terminal for analysis and storage.
As a still further proposal of the invention, the displacement sensor bracket is an adjustable bracket and comprises a plurality of telescopic rod sections which are connected in a hinged way, and the telescopic rod sections are provided with positioning holes and positioning pins which are mutually matched.
A method of assembling tapered roller bearing axial gap measurement devices back-to-back, comprising the steps of:
S1, mounting a workpiece assembly to be tested on a positioning counter-force supporting plate through a second mounting bolt, fixedly connecting an upper shell with a lower shell through a first mounting bolt, and ensuring that a transmission shaft, a first tapered roller bearing, a second tapered roller bearing and other parts are mounted in place;
s2, according to the specification of the workpiece assembly to be measured, adjusting the height of the displacement sensor bracket to enable the measuring head of the displacement sensor to correspond to the measuring position of the second tapered roller bearing;
S3, taking the end face of the second tapered roller bearing as a reference, selecting a dial gauge or a height gauge high-precision measuring tool, measuring the initial height of the gland for multiple times, taking an average value, recording as h11, and reducing measurement errors;
S4, when the sliding sleeve moves to the triggering surface of the guide shaft to contact with the photoelectric trigger switch, the optical path is blocked, the trigger switch generates an electric signal, the displacement sensor is started, data are ready to be collected, the transmission shaft is driven to rotate through the first input wheel and the second input wheel, and the first tapered roller bearing and the second tapered roller bearing simulate operation in an actual working state;
S5, measuring the axial displacement of the second tapered roller bearing in real time by a displacement sensor, and transmitting measured data to an external data processing terminal;
and S6, after the measurement is completed, calculating the displacement delta L of the lifting of the gland according to a formula delta L=h12-h 11, knowing an actual measurement value delta L of the standard pad, accurately calculating the clearance delta h between the transmission shaft and the gland according to a formula delta h=L-delta L=L-h12+h11, and analyzing the calculated axial clearance delta h by an external data processing terminal and comparing the axial clearance delta h with a preset standard clearance range.
Compared with the prior art, the invention has the beneficial effects that:
1. The upper shell and the lower shell are connected in an annular mode through a first mounting bolt, a transmission shaft is located between the upper shell and the lower shell to form a space structure for accommodating parts such as a bearing, a first tapered roller bearing and a second tapered roller bearing are installed on the transmission shaft back to back, a gland is installed on one side, close to the upper shell, of the transmission shaft, the upper shell is movably connected with the transmission shaft through a bolt on the gland, an adjusting pad is installed on the bolt, the adjusting pad is used for preliminarily adjusting the relative position between the transmission shaft and the gland to prepare for subsequent accurate measurement and adjustment of a gap, meanwhile, a pressing plate is installed on one side, close to the lower shell, of the second mounting bolt, of the transmission shaft, a first input wheel and a second input wheel are installed on the transmission shaft, and are used for providing rotary power for the transmission shaft in a subsequent simulation bearing actual working state;
2. In the initial measurement state, the height of the gland is measured by using a measuring tool as a reference, the height is recorded as h11, then the transmission shaft is driven to rotate by a first input wheel and a second input wheel, the actual working state of the bearing is simulated, in the process, the gland can be lifted by adjusting the thickness of an adjusting pad or other modes according to actual requirements, the height of the lifted gland is measured again by using the second tapered roller bearing as a reference, the height is recorded as h12, the displacement ΔL of the lifted gland is calculated according to a formula ΔL=h12-h 11, L is a standard pad actual measurement value, the standard pad is a fixed size determined according to design requirements and is used as a measurement reference, the clearance Δh between the transmission shaft and the gland is calculated according to a formula Δh=L- ΔL-h12+h11, the clearance Δh reflects the axial clearance condition of the tapered roller bearing assembled back to back in the current assembly state, if the Δh is not in the standard range, the clearance Δh obtained by the calculation is not in the standard range, the clearance range between the tapered roller bearing and the designed back to back in the back assembly is calculated again, the clearance between the tapered roller bearing and the tapered roller can be calculated until the axial clearance between the transmission shaft and the tapered roller bearing can be stably assembled in the normal assembly condition is calculated, and the axial clearance is calculated until the clearance between the axial clearance and the tapered roller assembly can be stably measured and the clearance is guaranteed;
3. According to the specification and the measurement demand of the measured workpiece, the displacement sensor support is adjusted, so that the displacement sensor measuring head is accurately aligned with the measurement position of the second tapered roller bearing due to the fact that the displacement sensor support is an adjustable support, an operator pulls the sliding sleeve to drive the guide shaft to move, when the sliding sleeve moves to the contact of the guide shaft trigger surface and the trigger switch, the trigger switch is a photoelectric trigger switch, the optical path of the trigger switch generates an electric signal, the signal marks the starting of the measurement process, an external power source is started, the transmission shaft is driven to rotate through the first input wheel and the second input wheel, the first tapered roller bearing and the second tapered roller bearing simulate the operation under the actual working state, the bearing can generate axial displacement in the bearing operation process, the displacement sensor measuring head is in contact with the second tapered roller bearing, when the bearing generates axial displacement, the displacement sensor measuring head can move along with the bearing, the high-precision linear displacement sensor converts the displacement of the measuring head into an electric signal, and transmits measurement data to an external data processing terminal through communication connection, after the external data processing terminal receives the data transmitted by the displacement sensor, the data are analyzed and processed, the data are calculated, the data are matched with the reset shaft and the reset shaft can be reset to the reset position of the reset shaft and the reset shaft in the reset spring to meet the axial standard value, and the reset requirements of the reset spring can be fixed in the reset sleeve and the reset position is ensured, and the reset position is matched with the reset spring in the reset spring, and the reset position is stable with the reset spring, and the reset position is ensured, and the reset position is stable to the reset position is matched with the reset spring, and the reset position is stable to the spring and the position is stable.
Drawings
Fig. 1 is a schematic perspective view of an axial clearance measuring device for back-to-back assembled tapered roller bearings.
FIG. 2 is an elevation view of a measured workpiece assembly in a back-to-back assembled tapered roller bearing axial gap measurement apparatus and method.
FIG. 3 is a schematic view of the cross-sectional structure in the direction A-A in FIG. 2.
Fig. 4 is a diagram of a test shafting of a tested workpiece assembly in a back-to-back assembled tapered roller bearing axial gap measurement device.
FIG. 5 is a non-pad measurement of a measured workpiece assembly in a back-to-back assembled tapered roller bearing axial gap measurement device.
FIG. 6 is a standard shim-added measurement of a measured workpiece assembly in a back-to-back assembled tapered roller bearing axial gap measurement device.
Fig. 7 is a schematic view of a partial enlarged structure of a in fig. 6.
The device comprises a positioning counter-force supporting plate, a measured workpiece assembly, 201, an upper shell, 202, a lower shell, 203, a pressing plate, 204, a first input wheel, 205, a first tapered roller bearing, 206, a transmission shaft, 207, a pressing cover, 208, a bolt, 209, an adjusting pad, 210, a second tapered roller bearing, 211, a second input wheel, 3, a measuring mechanism, 301, a positioning sleeve, 302, a displacement sensor bracket, 303, a displacement sensor, 304, a guide shaft, 305, a return spring, 306, a sliding sleeve, 307, a guide shaft limiting surface, 308, a trigger switch, 309, a guide shaft trigger surface, 310, a lifting ring, 311, a screw, 312, a displacement sensor measuring head, 4, a first mounting bolt, 5, a second mounting bolt and 6, and a standard pad.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-7, this embodiment provides a back-to-back assembled tapered roller bearing axial gap measuring device, which comprises a positioning reaction force supporting plate 1, a measured workpiece assembly 2 and a measuring mechanism 3, wherein a second mounting bolt 5 can be detached below the positioning reaction force supporting plate 1, the measured workpiece assembly 2 comprises an upper shell 201, a lower shell 202 and a transmission shaft 206, the positioning reaction force supporting plate 1 is detached with the transmission shaft 206 through the second mounting bolt 5, the transmission shaft 206 is positioned between the upper shell 201 and the lower shell 202, the transmission shaft 206 is provided with a gland 207 close to the upper shell 201, the upper shell 201 is detached with a second tapered roller bearing 210 through the gland 207, and the measuring mechanism 3 is arranged on the upper side of the gland 207;
In this embodiment, specifically, the workpiece assembly 2 to be tested includes a pressing plate 203, a first input wheel 204, a first tapered roller bearing 205, a transmission shaft 206, a pressing cover 207, a bolt 208, an adjusting pad 209, a second tapered roller bearing 210, and a second input wheel 211, where a first mounting bolt 4 is annularly disposed on a side of the upper housing 201 close to the lower housing 202, the upper housing 201 is detachably provided with the lower housing 202 through the first mounting bolt 4, a pressing plate 203 is disposed on a side of the second mounting bolt 5 close to the lower housing 202, a first input wheel 204 is disposed on a side of the pressing plate 203 on the transmission shaft 206, and a second input wheel 211 is disposed between the upper housing 201 and the lower housing 202 on the transmission shaft 206;
a bolt 208 is arranged on the upper side of the gland 207, the gland 207 is movably connected with a transmission shaft 206 through the bolt 208, and the gland 207 and the transmission shaft 206 are detachably provided with an adjusting pad 209 on the bolt 208;
the clearance Δh between the transmission shaft 206 and the gland 207 is expressed as:
ΔL=h22-h11, Δh=L-ΔL=L-h22+h11;
L is an actual measurement value of the standard pad 6, h11 is the height of the gland 207 measured by taking the second tapered roller bearing 210 as a reference, and h12 is the height of the gland 207 measured by taking the second tapered roller bearing 210 as a reference;
The upper case 201 and the lower case 202 are connected in a ring shape by the first mounting bolts 4, a transmission shaft 206 is positioned between the upper case 201 and the lower case 202, a space structure for accommodating components such as bearings is formed, a first tapered roller bearing 205 and a second tapered roller bearing 210 are mounted back to back on the transmission shaft 206, a gland 207 is mounted on one side close to the upper case 201, the gland 207 is movably connected with the transmission shaft 206 by a bolt 208 on the gland 207, and an adjusting pad 209 is mounted on the bolt 208. The function of the adjustment pad 209 is to initially adjust the relative position between the drive shaft 206 and the gland 207 in preparation for subsequent accurate measurement and adjustment of the gap. Meanwhile, a pressing plate 203 is arranged on one side of the second mounting bolt 5, which is close to the lower shell 202, a first input wheel 204 and a second input wheel 211 are arranged on a transmission shaft 206, and the first input wheel 204 and the second input wheel 211 are used for simulating the actual working state of a bearing subsequently and providing rotating power for the transmission shaft 206;
In the initial measurement state, the height of the gland 207 is measured by using a measuring tool (such as a height gauge) with reference to the second tapered roller bearing 210, recorded as h11, then the transmission shaft 206 is driven to rotate by the first input wheel 204 and the second input wheel 211 to simulate the actual working state of the bearing, in the process, the gland 207 can be lifted by adjusting the thickness of the adjusting pad 209 or other modes according to actual requirements, the lifted height of the gland 207 is measured again with reference to the second tapered roller bearing 210, recorded as h22, the lifted displacement Δl of the gland 207 is calculated according to a formula Δl=h22-h 11, wherein L is the actual measurement value of the standard pad 6, the standard pad 6 is a fixed size determined according to design requirements, for reference measurement, the clearance Δh between the transmission shaft 206 and the gland 207 is calculated according to the formula Δh=l- Δl=l-h22+h11, the clearance Δh reflects the axial clearance condition of the tapered roller bearing assembled back to back in the current assembly state, the calculated clearance Δh is compared with the standard clearance range required by design, if Δh is not in the standard range, measurement and calculation are performed again by replacing the adjusting pads 209 with different thicknesses until the clearance Δh between the transmission shaft 206 and the gland 207 meets the design requirement, after adjustment is completed, the measurement process can be repeated, whether the axial clearance is stable in the standard range is verified, and the assembly precision of the tapered roller bearing assembled back to back and the normal operation of the device are ensured.
Example 2
Referring to fig. 1-3, this embodiment is different from the previous embodiment in that the measuring mechanism 3 includes a positioning sleeve 301, a displacement sensor bracket 302, a displacement sensor 303, a guide shaft 304, a return spring 305, a sliding sleeve 306, a guide shaft limiting surface 307, a trigger switch 308, a guide shaft triggering surface 309, a hanging ring 310, a screw 311 and a displacement sensor probe 312, the upper side of the gland 207 is detachable with the positioning sleeve 301, two sides of the positioning sleeve 301 are provided with the displacement sensor bracket 302, the displacement sensor bracket 302 is provided with the displacement sensor 303, a displacement sensor probe 312 is provided below the displacement sensor 303, one side of the positioning sleeve 301 away from the gland 207 is provided with the sliding sleeve 306, the sliding sleeve 306 is slidably connected with the guide shaft 304, the end surface of the positioning sleeve 301 is in a threaded structure, one side of the guide shaft 304 close to the positioning sleeve 301 is in a threaded structure, and the guide shaft 304 is in threaded interaction with the positioning;
A guide shaft limiting surface 307 is fixedly connected to one side, far away from the positioning sleeve 301, of the guide shaft 304, a lifting ring 310 is fixedly connected to the guide shaft limiting surface, a trigger switch 308 is arranged between the lifting ring 310 and the guide shaft limiting surface 307, and a guide shaft trigger surface 309 is arranged on one side, far away from the trigger switch 308, of the guide shaft 304;
A return spring 305 is sleeved on the guide shaft 304 between the positioning sleeve 301 and the slide rail, the guide shaft 304 and the slide sleeve 306 are fixedly connected to two ends of the return spring 305 respectively, the measuring heads of the displacement sensor 303 are matched with the second tapered roller bearing 210 in position, a screw 311 is arranged in the positioning sleeve 301, and the screw 311 is matched with the return spring 305;
the trigger switch 308 is a photoelectric trigger switch 308, and the trigger switch 308 is electrically connected with the guide shaft limiting surface 307 and the guide shaft trigger surface 309;
the displacement sensor 303 is a high-precision linear displacement sensor 303, and the displacement sensor 303 is in communication connection with an external data processing terminal and is used for transmitting measurement data to the external data processing terminal for analysis and storage;
The displacement sensor bracket 302 is an adjustable bracket and comprises a plurality of telescopic rod sections which are connected in a hinged manner, wherein positioning holes and positioning pins are formed in the telescopic rod sections, and the positioning holes are matched with the positioning pins;
The positioning sleeve 301 of the measuring mechanism 3 is detachably arranged on the upper side of the gland 207 to finish the preliminary construction of the whole device, the displacement sensor bracket 302 is adjusted according to the specification and the measurement requirement of a measured workpiece, the displacement sensor bracket 302 is an adjustable bracket, so that the measuring head 312 of the displacement sensor is accurately aligned with the measurement position of the second tapered roller bearing 210, an operator pulls the sliding sleeve 306 to drive the guide shaft 304 to move, when the sliding sleeve 306 moves to the guide shaft trigger surface 309 to contact with the trigger switch 308, the trigger switch 308 is a photoelectric trigger switch 308, the light path is blocked, the trigger switch 308 generates an electric signal, the signal marks the start of the measuring process, an external power source is started, the transmission shaft 206 is driven to rotate by the first input wheel 204 and the second input wheel 211, so that the first tapered roller bearing 205 and the second tapered roller bearing 210 simulate the operation in the actual working state, in the running process of the bearing, the bearing generates axial displacement, the measuring head 312 of the displacement sensor is contacted with the second tapered roller bearing 210, when the bearing generates axial displacement, the measuring head of the displacement sensor 303 moves along with the bearing, the high-precision linear displacement sensor 303 converts the displacement of the measuring head into an electric signal, measurement data are transmitted to an external data processing terminal through communication connection, the external data processing terminal analyzes and processes the data after receiving the data transmitted by the displacement sensor 303, the axial gap of the tapered roller bearing assembled back to back is calculated, whether the axial gap of the bearing meets the requirement can be judged by comparing with a preset standard value, when the measurement is finished, the sliding sleeve 306 slides along the guide shaft 304 and returns to the initial position under the action of the reset spring 305, the two ends of the reset spring 305 are respectively fixedly connected with the guide shaft 304 and the sliding sleeve 306, and screw 311 in positioning sleeve 301 cooperates with reset spring 305, ensure that the spring remains stable in the telescoping process, and provide reliable power for resetting sliding sleeve 306.
Example 3
A method of assembling tapered roller bearing axial gap measurement devices back-to-back, comprising the steps of:
s1, mounting a workpiece assembly 2 to be tested on a positioning counter-force supporting plate 1 through a second mounting bolt 5, fixedly connecting an upper shell 201 and a lower shell 202 through a first mounting bolt 4, and ensuring that a transmission shaft 206, a first tapered roller bearing 205, a second tapered roller bearing 210 and other parts are mounted in place;
S2, according to the specification of the workpiece assembly 2 to be measured, adjusting the height of the displacement sensor bracket 302 to enable the measuring head of the displacement sensor 303 to correspond to the measuring position of the second tapered roller bearing 210;
S3, taking the end face of the second tapered roller bearing 210 as a reference, selecting a dial gauge or a height gauge high-precision measuring tool, measuring the initial height of the gland 207 for a plurality of times, taking an average value, recording as h11, and reducing measurement errors;
S4, when the sliding sleeve 306 moves to the guide shaft trigger surface 309 to contact with the photoelectric trigger switch 308, the light path is blocked, the trigger switch 308 generates an electric signal, the displacement sensor 303 is started, data are ready to be collected, the transmission shaft 206 is driven to rotate through the first input wheel 204 and the second input wheel 211, and the first tapered roller bearing 205 and the second tapered roller bearing 210 simulate operation under an actual working state;
S5, the displacement sensor 303 measures the axial displacement of the second tapered roller bearing 210 in real time and transmits measured data to an external data processing terminal;
And S6, after the measurement is completed, calculating the displacement delta L of the lifting of the gland 207 according to a formula delta L=h22-h 11, knowing an actual measurement value delta L of the standard pad 6, accurately calculating the clearance delta h between the transmission shaft 206 and the gland 207 according to a formula delta h=L-delta L=L-h22+h11, and analyzing the calculated axial clearance delta h by an external data processing terminal and comparing the calculated axial clearance delta h with a preset standard clearance range.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
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