CN109029211B - Measuring instrument and measuring method for axial clearance of rotating shaft of transmission - Google Patents
Measuring instrument and measuring method for axial clearance of rotating shaft of transmission Download PDFInfo
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- CN109029211B CN109029211B CN201810834968.2A CN201810834968A CN109029211B CN 109029211 B CN109029211 B CN 109029211B CN 201810834968 A CN201810834968 A CN 201810834968A CN 109029211 B CN109029211 B CN 109029211B
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
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Abstract
The invention discloses a measuring instrument and a measuring method for axial clearance of a rotating shaft of a transmission, which comprises the following steps: A. abutting the lower end face of a measuring inner cylinder part of an inner sleeve of a measuring instrument of the axial clearance of a rotating shaft of the transmission with the upper end face of an outer ring of the conical bearing; B. adjusting the spherical horizontal adjusting block to enable the lower end surfaces of a plurality of detection bosses of the measuring outer connecting cylinder to be abutted against the upper end surface of the box body; C. starting the air gap detection device, and when the data value of the gas leakage quantity displayed by the leakage quantity display is larger than a set value, completely attaching the lower end face of the detection boss to the upper end face of the box body by adjusting the spherical horizontal adjusting block; and when the data value of the gas leakage quantity displayed by the leakage quantity display is smaller than the set value, the controller controls the plurality of measuring sensors to measure the depth value data of the plurality of detecting points. Compared with the prior art, the method can solve the problem that the depth value between the upper end surface of the box body of the existing transmission and the upper end surface of the outer ring of the conical bearing is easy to measure and has poor accuracy.
Description
Technical Field
The invention relates to the technical field of manufacturing of transmission measuring equipment, in particular to a measuring instrument for axial clearance of a transmission rotating shaft and a measuring method for the axial clearance of the transmission rotating shaft.
Background
There is a transmission as shown in fig. 1, which includes a housing 100 and a rotary shaft 200 provided in the housing, and one end of the rotary shaft 200 is fitted into a bearing hole of the housing 100 through a conical bearing 300. In order to control the pre-tightening force of the conical bearing and the like, the bearing pad needs to be selected according to the depth value between a plurality of detection points of the upper end surface of the box body and the upper end surface of the outer ring of the conical bearing. The existing measuring method is to take the upper end surface of a box body as a measuring reference, measure depth values between the upper end surface of the box body and a plurality of detection points in the circumferential direction of an outer ring of a conical bearing, and then take the depth values as a selected calculation basis of a bearing pad; therefore, the accuracy of these several depth value measurements is of particular importance. Because the upper end face of the box body is often polluted by oil stains and the like, the phenomena of unstable and inaccurate measurement and poor accuracy are easy to occur, and accurate calculation basis cannot be provided for the selection of the bearing pad.
Disclosure of Invention
The invention aims to solve the technical problem of providing a measuring instrument and a measuring method for axial clearance of a rotating shaft of a transmission, and aims to solve the problem that the depth value between the upper end surface of a box body of the existing transmission and the upper end surface of an outer ring of a conical bearing is easy to measure and has poor accuracy.
The technical scheme adopted by the invention for solving the technical problem is as follows: a measuring instrument for axial clearance of a rotating shaft of a transmission comprises an inner sleeve, wherein the inner sleeve is provided with an inner measuring cylinder part and a plate part connected to the top of the inner measuring cylinder part, a connecting cylinder is sleeved outside the inner measuring cylinder part, the lower part of the connecting cylinder is connected with an outer measuring connecting cylinder, the outer measuring connecting cylinder is provided with a plurality of detection bosses extending downwards, detection holes communicated with an air gap detection port on the lower end face are formed in the detection bosses, and the detection holes are connected with an air gap detection device; the upper part of the connecting cylinder is connected with a sensor mounting seat arranged above the plate body part, a horizontal adjusting column is arranged on the sensor mounting seat in a penetrating way, the horizontal adjusting column is provided with a column body and a ball head part arranged at the lower end of the column body, and the ball head part is movably arranged in a spherical crown-shaped groove of the plate body part; an adjusting column retaining ring is arranged between the plate body part and the sensor mounting seat of the column body, and a spring is sleeved on the column body between the adjusting column retaining ring and the sensor mounting seat; a plurality of measuring sensors with one ends abutting against the upper end face of the plate body part are circumferentially distributed on the sensor mounting seat; an outer connecting cylinder is arranged above the sensor mounting seat, the outer connecting cylinder is provided with an outer measuring cylinder and a spherical horizontal adjusting block arranged at the top of the outer measuring cylinder, and the spherical horizontal adjusting block is movably arranged in a spherical crown-shaped groove of the transition connecting plate; an outer spring is sleeved outside the outer measuring cylinder.
Further: the sensor mounting seat is provided with a top plate and a plurality of support legs circularly arranged on the top plate, and the plurality of support legs penetrate through the notches in the plate body part and are connected with the connecting cylinder; the horizontal adjusting column is arranged on the top plate in a penetrating way; the top plate is a circle and is provided with a plurality of through holes, the measuring sensors are respectively arranged in the through holes of the top plate in a penetrating mode through locking sleeves, and the locking sleeves are connected with the top plate through set screws.
Further: the adjusting column retainer ring is fixed on the column body through a cylindrical pin.
Further: the air gap detection device comprises an air pipeline with an air inlet, the air pipeline is connected with a silencer through a first electromagnetic directional valve, a pressure reducing valve and a second electromagnetic directional valve in sequence, the pressure reducing valve is connected with an air pipe branch on the air pipeline between the second electromagnetic directional valves, the air pipe branch is connected with a detection hole of a detection boss through a sensor module, the sensor module is connected with a pressure sensor between the pressure reducing valves, and the air pipe branch is provided with a leakage amount displayer.
Further: the first electromagnetic directional valve and the second electromagnetic directional valve are both two-position three-way directional valves.
In the technical scheme of the measuring instrument and the measuring method for the axial clearance of the rotating shaft of the transmission, a more specific technical scheme can be that: a measuring method for axial clearance of a rotating shaft of a transmission comprises a box body and the rotating shaft arranged in the box body, one end of the rotating shaft is arranged in a bearing hole of the box body through a conical bearing, the depth values of a plurality of detection points between the upper end surface of the box body and the upper end surface of the outer ring of the conical bearing are measured through a measuring instrument of the axial clearance of the rotating shaft of the speed changer, the measuring instrument for the axial clearance of the rotating shaft of the transmission comprises an inner sleeve, wherein the inner sleeve is provided with a measuring inner cylinder part and a plate body part connected to the top of the measuring inner cylinder part, a connecting cylinder is sleeved outside the measuring inner cylinder, the lower part of the connecting cylinder is connected with a measuring outer connecting cylinder, the measuring outer connecting cylinder is provided with a plurality of detecting lug bosses extending downwards, a detection hole communicated with the air gap detection port on the lower end face is formed in the detection boss and is connected with an air gap detection device; the upper part of the connecting cylinder is connected with a sensor mounting seat arranged above the plate body part, a horizontal adjusting column is arranged on the sensor mounting seat in a penetrating way, the horizontal adjusting column is provided with a column body and a ball head part arranged at the lower end of the column body, and the ball head part is movably arranged in a spherical crown-shaped groove of the plate body part; an adjusting column retaining ring is arranged between the plate body part and the sensor mounting seat of the column body, and a spring is sleeved on the column body between the adjusting column retaining ring and the sensor mounting seat; a plurality of measuring sensors with one ends abutting against the upper end face of the plate body part are circumferentially distributed on the sensor mounting seat, and the measuring sensors are in control connection with a controller; an outer connecting cylinder is arranged above the sensor mounting seat, the outer connecting cylinder is provided with an outer measuring cylinder and a spherical horizontal adjusting block arranged at the top of the outer measuring cylinder, and the spherical horizontal adjusting block is movably arranged in a spherical crown-shaped groove of the transition connecting plate; an outer spring is sleeved outside the outer measuring cylinder; the sensor mounting seat is provided with a top plate and a plurality of support legs circularly arranged on the top plate, and the plurality of support legs penetrate through the notches in the plate body part and are connected with the connecting cylinder; the horizontal adjusting column is arranged on the top plate in a penetrating way; the top plate is circularly provided with a plurality of through holes, the plurality of measuring sensors are respectively arranged in the through holes of the top plate in a penetrating manner through locking sleeves, and the locking sleeves are connected with the top plate through set screws; the air gap detection device comprises an air pipeline provided with an air inlet, the air pipeline is connected with a silencer through a first electromagnetic directional valve, a pressure reducing valve and a second electromagnetic directional valve in sequence, an air pipe branch is connected on the air pipeline between the pressure reducing valve and the second electromagnetic directional valve and connected with a detection hole of a detection boss through a sensor module, a pressure sensor in control connection with a controller is arranged on the air pipe branch between the sensor module and the pressure reducing valve, the sensor module is connected with a leakage amount display and is in control connection with the controller,
the measuring method comprises the following steps:
A. abutting the lower end surface of the measuring inner cylinder part of the inner sleeve of the measuring instrument of the axial clearance of the rotating shaft of the transmission with the upper end surface of the outer ring of the conical bearing;
B. adjusting the spherical horizontal adjusting block to enable the lower end faces of the plurality of detection bosses of the measuring outer connecting cylinder to be abutted against the upper end face of the box body;
C. starting the air gap detection device, and judging the fitting condition of the lower end face of the detection boss and the upper end face of the box body according to the data value of the gas leakage amount displayed on the leakage amount display;
when the data value of the gas leakage quantity displayed by the leakage quantity display is larger than a set value, the lower end face of the detection boss is completely attached to the upper end face of the box body by adjusting the spherical horizontal adjusting block;
and when the data value of the gas leakage quantity displayed by the leakage quantity display is smaller than a set value, the controller controls the measuring sensors to measure the depth value data of the detecting points.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects: 1. the position of the measuring instrument for the axial clearance of the rotating shaft of the transmission between the inner sleeve and the measuring outer connecting cylinder can be adjusted through the spherical head part of the horizontal adjusting column and the spherical horizontal adjusting block, and the two spherical pairs can more accurately measure the axial clearance of the rotating shaft which is not completely vertical to the transmission during assembly; the depth value between the upper end surface of the box body of the speed changer and the upper end surface of the conical bearing outer ring is high in measurement accuracy, and an accurate calculation basis is provided for the selection of the bearing pad; 2. through the setting of air gap detection device, can avoid among the measurement process, carry out the measurement of data under the condition that measuring basis and measuring face are not laminated.
Drawings
Fig. 1 is a schematic structural view of a transmission of embodiment 2 of the invention.
Fig. 2 is a schematic structural diagram of a measuring instrument for axial clearance of a rotating shaft of a transmission according to embodiment 1 of the present invention.
Fig. 3 is an isometric view of a measurement instrument for axial clearance of a transmission rotating shaft in embodiment 1 of the invention.
Fig. 4 is a schematic diagram of the measuring instrument for the axial clearance of the rotating shaft of the transmission according to embodiment 1 of the invention.
Fig. 5 is a schematic structural diagram of an air gap detection apparatus according to embodiment 1 of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
example 1:
the measuring instrument for the axial clearance of the rotating shaft of the transmission shown in FIG. 2 comprises an inner sleeve 1, wherein the inner sleeve 1 is provided with a measuring inner cylinder part 1-1 and a plate part 1-2 connected to the top of the measuring inner cylinder part 1-1, the plate part 1-2 is a circular plate, and the measuring inner cylinder part 1-1 is a cylinder, as shown in FIG. 3; a connecting cylinder 4 is sleeved outside the measuring inner cylinder part 1-1, the lower part of the connecting cylinder 4 is connected with a measuring outer connecting cylinder 2 through a bolt 3, the lower part of the measuring outer connecting cylinder 2 of the embodiment is provided with three detecting bosses 2-1 extending downwards, detecting holes communicated with air gap detecting ports on the lower end faces of the detecting bosses are arranged in the detecting bosses 2-1, the upper end face of the measuring outer connecting cylinder 2 is provided with three threaded holes, three air outlet pipes are respectively arranged on the threaded holes, and the other ends of the air outlet pipes are connected with an air gap detecting device 18; as shown in fig. 5, the air gap detection device 18 includes an air pipe having an air inlet 18-2, the air pipe is connected to the muffler 18-1 sequentially through a first electromagnetic directional valve 18-3, a pressure reducing valve 18-4, and a second electromagnetic directional valve 18-5, and the first electromagnetic directional valve 18-3 and the second electromagnetic directional valve 18-5 are two-position three-way directional valves in this embodiment; an air pipe branch is connected on an air pipe between the pressure reducing valve 18-4 and the second electromagnetic directional valve 18-5, the air pipe branch is connected with a detection hole of the detection boss 2-1 through a sensor module 18-7, a pressure sensor 18-6 is arranged on the air pipe branch between the sensor module 18-7 and the pressure reducing valve 18-4, a signal output end of the pressure sensor 18-6 is connected with a controller, and the sensor module 18-7 is connected with a leakage amount display (not shown in the figure) and is connected with the controller through a signal output end; when the device works, the first electromagnetic directional valve 18-3 and the second electromagnetic directional valve 18-5 are electrified, the first electromagnetic directional valve 18-3 and the second electromagnetic directional valve 18-5 are connected, airflow of an air source enters a detection hole of the detection boss 2-1 through the air pipe branch via the sensor module 18-7, when the sensor 18-6 detects that the air pressure variation of the air pipe branch is larger than the set air leakage amount, the sensor module 18-7 does not output signals to the controller, and the measuring instrument for the axial gap of the rotating shaft of the transmission does not perform the next measuring operation of the depth value H2 of three detection points between the upper end face of the box 100 and the upper end face of the outer ring of the conical bearing 300; meanwhile, the leakage display can display the gas leakage of the detection hole of the detection boss 2-1, and whether the contact surface between the upper end surface of the box body and the upper end surface of the outer ring of the conical bearing is attached or not can be judged according to the range of the gas leakage; the air gap detection device can accurately sense whether the workpieces to be detected are level or mutually attached within the micron grade, so that the surface of the workpiece to be detected is ensured to be coincident with a measurement reference, and the measurement error caused by the fact that foreign matters are attached to a measuring head in the measurement process is avoided; the upper part of the connecting cylinder 4 is connected with a sensor mounting seat 15 arranged above the plate body part of the inner sleeve 1 through a bolt, a horizontal adjusting column 14 is arranged on the sensor mounting seat 15 in a penetrating way, the sensor mounting seat 15 is provided with a top plate 15-2 and three support legs 15-1 circularly arranged on the top plate 15-2, and the three support legs 15-1 respectively penetrate through three gaps on the plate body part 1-2 of the inner sleeve 1 and are respectively connected with the connecting cylinder 4 through three bolts; the horizontal adjusting column 14 is arranged on the top plate 15-2 of the sensor mounting seat 15 in a penetrating way; the horizontal adjusting column 14 is provided with a column body and a ball head part arranged at the lower end of the column body, and the ball head part is movably arranged in the spherical-crown-shaped groove of the plate body part 1-2; an adjusting column retaining ring 17 is arranged between the plate body part 1-2 and the top plate 15-2 of the sensor mounting seat 15, and the adjusting column retaining ring 17 is fixed on the column body through a cylindrical pin 7; a spring 16 is sleeved on a column body between the adjusting column retaining ring 17 and the top plate 15-2 of the sensor mounting seat 15; in the embodiment, three measuring sensors 5 with one ends abutting against the upper end faces of the plate body parts 1-2 of the inner sleeve 1 are circumferentially distributed on the sensor mounting seat 15, and the control ends of the measuring sensors 5 are connected with a controller; in the embodiment, three through holes are circularly distributed on the top plate 15-2, the measuring sensor 5 is respectively arranged in the through hole of the top plate 15-2 through a locking sleeve 8 in a penetrating manner, and the locking sleeve 8 is connected with the top plate 15-2 through a set screw 7; an outer connecting cylinder is arranged above a top plate 15-2 of the sensor mounting seat 15, the outer connecting cylinder is provided with an outer measuring cylinder 12 and a spherical horizontal adjusting block 11 connected to the top of the outer measuring cylinder 12 through a bolt, and the outer measuring cylinder 12 is connected with the top plate 15-2 of the sensor mounting seat 15 through a bolt 9; the spherical horizontal adjusting block 11 is movably arranged in the spherical-crown-shaped groove of the transition connecting plate 10; an outer spring 13 is sleeved outside the outer measuring cylinder 12, one end of the outer spring 13 is abutted against the bottom surface of the transition connecting plate 10, and the other end of the outer spring 13 is abutted against a top plate 15 of the sensor mounting seat 15; the upper end of the horizontal adjustment column 14 is inserted into the outer measuring cylinder 12.
Example 2:
a measurement method for measuring axial clearance of a transmission rotating shaft is disclosed, wherein the transmission shown in figure 1 comprises a box 100 and a rotating shaft 200 arranged in the box 100, one end of the rotating shaft 200 is arranged in a bearing hole of the box 100 through a conical bearing 300, and depth values H2 of three detection points between the upper end surface of the box 100 and the upper end surface of an outer ring of the conical bearing 300 are measured through a measurement instrument for measuring the axial clearance of the transmission rotating shaft; the measuring instrument for the axial clearance of the rotating shaft of the transmission shown in FIG. 2 comprises an inner sleeve 1, wherein the inner sleeve 1 is provided with a measuring inner cylinder part 1-1 and a plate part 1-2 connected to the top of the measuring inner cylinder part 1-1, the plate part 1-2 is a circular plate, and the measuring inner cylinder part 1-1 is a cylinder, as shown in FIG. 3; a connecting cylinder 4 is sleeved outside the measuring inner cylinder part 1-1, the lower part of the connecting cylinder 4 is connected with a measuring outer connecting cylinder 2 through a bolt 3, the lower part of the measuring outer connecting cylinder 2 of the embodiment is provided with three detecting bosses 2-1 extending downwards, detecting holes communicated with air gap detecting ports on the lower end faces of the detecting bosses are arranged in the detecting bosses 2-1, the upper end face of the measuring outer connecting cylinder 2 is provided with three threaded holes, three air outlet pipes are respectively arranged on the threaded holes, and the other ends of the air outlet pipes are connected with an air gap detecting device 18; as shown in fig. 5, the air gap detection device 18 includes an air pipe having an air inlet 18-2, the air pipe is connected to the muffler 18-1 sequentially through a first electromagnetic directional valve 18-3, a pressure reducing valve 18-4, and a second electromagnetic directional valve 18-5, and the first electromagnetic directional valve 18-3 and the second electromagnetic directional valve 18-5 are two-position three-way directional valves in this embodiment; an air pipe branch is connected to an air pipe between the pressure reducing valve 18-4 and the second electromagnetic directional valve 18-5, the air pipe branch is connected with a detection hole of the detection boss 2-1 through a sensor module 18-7, a pressure sensor 18-6 is arranged on the air pipe branch between the sensor module 18-7 and the pressure reducing valve 18-4, a signal output end of the pressure sensor 18-6 is connected with a controller, and the sensor module 18-7 is connected with a leakage amount display and is connected with the controller through a signal output end; when the device works, the first electromagnetic directional valve 18-3 and the second electromagnetic directional valve 18-5 are electrified, the first electromagnetic directional valve 18-3 and the second electromagnetic directional valve 18-5 are connected, airflow of an air source enters a detection hole of the detection boss 2-1 through the air pipe branch via the sensor module 18-7, when the sensor 18-6 detects that the air pressure variation of the air pipe branch is larger than the set air leakage amount, the sensor module 18-7 does not output a signal to the controller, and the measuring instrument for the axial gap of the rotating shaft of the transmission does not perform the next measuring action of the depth value H2 between the upper end face of the box 100 and the three detection points on the upper end face of the outer ring of the conical bearing 300; meanwhile, the leakage display can display the gas leakage of the detection hole of the detection boss 2-1, and whether the contact surface between the upper end surface of the box body and the upper end surface of the outer ring of the conical bearing is attached or not can be judged according to the range of the gas leakage; the air gap detection device can accurately sense whether the workpieces to be detected are level or mutually attached within the micron grade, so that the surface of the workpiece to be detected is ensured to be coincident with a measurement reference, and the measurement error caused by the fact that foreign matters are attached to a measuring head in the measurement process is avoided; the upper part of the connecting cylinder 4 is connected with a sensor mounting seat 15 arranged above the plate body part of the inner sleeve 1 through a bolt, a horizontal adjusting column 14 is arranged on the sensor mounting seat 15 in a penetrating way, the sensor mounting seat 15 is provided with a top plate 15-2 and three support legs 15-1 circularly arranged on the top plate 15-2, and the three support legs 15-1 respectively penetrate through three gaps on the plate body part 1-2 of the inner sleeve 1 and are respectively connected with the connecting cylinder 4 through three bolts; the horizontal adjusting column 14 is arranged on the top plate 15-2 of the sensor mounting seat 15 in a penetrating way; the horizontal adjusting column 14 is provided with a column body and a ball head part arranged at the lower end of the column body, and the ball head part is movably arranged in the spherical-crown-shaped groove of the plate body part 1-2; an adjusting column retaining ring 17 is arranged between the plate body part 1-2 and the top plate 15-2 of the sensor mounting seat 15, and the adjusting column retaining ring 17 is fixed on the column body through a cylindrical pin 7; a spring 16 is sleeved on a column body between the adjusting column retaining ring 17 and the top plate 15-2 of the sensor mounting seat 15; in the embodiment, three measuring sensors 5 with one ends abutting against the upper end faces of the plate body parts 1-2 of the inner sleeve 1 are circumferentially distributed on the sensor mounting seat 15, and the control ends of the measuring sensors 5 are connected with a controller; in the embodiment, three through holes are circularly distributed on the top plate 15-2, the measuring sensor 5 is respectively arranged in the through hole of the top plate 15-2 through a locking sleeve 8 in a penetrating manner, and the locking sleeve 8 is connected with the top plate 15-2 through a set screw 7; an outer connecting cylinder is arranged above a top plate 15-2 of the sensor mounting seat 15, the outer connecting cylinder is provided with an outer measuring cylinder 12 and a spherical horizontal adjusting block 11 connected to the top of the outer measuring cylinder 12 through a bolt, and the outer measuring cylinder 12 is connected with the top plate 15-2 of the sensor mounting seat 15 through a bolt 9; the spherical horizontal adjusting block 11 is movably arranged in the spherical-crown-shaped groove of the transition connecting plate 10; an outer spring 13 is sleeved outside the outer measuring cylinder 12, one end of the outer spring 13 is abutted against the bottom surface of the transition connecting plate 10, and the other end of the outer spring 13 is abutted against a top plate 15 of the sensor mounting seat 15; the upper end of the horizontal adjusting column 14 is arranged in the outer measuring cylinder 12 in a penetrating way;
the measuring method comprises the following steps:
A. the lower end face of a measuring inner cylinder part 1-1 of an inner sleeve 1 of a measuring instrument of the axial clearance of a rotating shaft of the transmission is abutted with the upper end face of an outer ring of a conical bearing 300;
B. adjusting the spherical horizontal adjusting block 11 to enable the lower end surfaces of the three detection bosses 2-1 of the measuring outer connecting cylinder 2 to be abutted with the upper end surface of the box body 100;
C. starting the air gap detection device 18, and judging the fitting condition of the lower end face of the detection boss and the upper end face of the box body according to the data value of the gas leakage displayed on the leakage display; when the data value of the gas leakage quantity displayed by the leakage quantity display is larger than a set value, the lower end face of the detection boss 2-1 is completely attached to the upper end face of the box body 100 by adjusting the spherical horizontal adjusting block 11, and when the lower end face of the detection boss 2-1 is determined to be completely attached to the upper end face of the box body 100; when the data value of the gas leakage amount displayed by the leakage amount display is smaller than the set value, the controller controls the three measuring sensors to measure the data of the depth values H2 of the three detecting points, as shown in fig. 4.
Because the depth values H2 of the three detection points are accurately measured, accurate calculation basis is provided for the selection of the bearing pad.
Claims (6)
1. A measuring instrument for axial clearance of a rotating shaft of a transmission is characterized in that: the device comprises an inner sleeve (1), wherein the inner sleeve (1) is provided with a measuring inner cylinder part (1-1) and a plate part (1-2) connected to the top of the measuring inner cylinder part (1-1), a connecting cylinder (4) is sleeved outside the measuring inner cylinder part (1-1), the lower part of the connecting cylinder (4) is connected with a measuring outer connecting cylinder (2), the measuring outer connecting cylinder (2) is provided with a plurality of detecting bosses extending downwards, detecting holes communicated with an air gap detecting port on the lower end face are formed in the detecting bosses, and the detecting holes are connected with an air gap detecting device (18); the upper part of the connecting cylinder (4) is connected with a sensor mounting seat (15) arranged above the plate body part (1-2), a horizontal adjusting column (14) is arranged on the sensor mounting seat (15) in a penetrating manner, the horizontal adjusting column (14) is provided with a column body and a ball head part arranged at the lower end of the column body, and the ball head part is movably arranged in a spherical crown-shaped groove of the plate body part (1-2); an adjusting column retaining ring (17) is arranged between the plate body part (1-2) and the sensor mounting seat (15) of the column body, and a spring (16) is sleeved on the column body between the adjusting column retaining ring (17) and the sensor mounting seat (15); a plurality of measuring sensors (5) with one ends abutting against the upper end face of the plate body are circumferentially distributed on the sensor mounting seat (15); an outer connecting cylinder is arranged above the sensor mounting seat (15), the outer connecting cylinder is provided with an outer measuring cylinder (12) and a spherical horizontal adjusting block (11) arranged at the top of the outer measuring cylinder (12), and the spherical horizontal adjusting block (11) is movably arranged in a spherical-crown-shaped groove of the transition connecting plate (10); an outer spring (13) is sleeved outside the outer measuring cylinder (12);
air gap detection device is including the trachea way that is equipped with the air inlet, the trachea way loops through first electromagnetic directional valve, relief pressure valve and second electromagnetic directional valve and is connected with the silencer the relief pressure valve with be connected with a trachea branch road on the trachea way between the second electromagnetic directional valve, the trachea branch road pass through sensor module with the inspection hole that detects the boss sensor module with between the relief pressure valve be equipped with on the trachea branch road with controller control connection's pressure sensor, sensor module be connected with reveal volume display and with controller control connection.
2. The apparatus for measuring axial clearance of a rotating shaft of a transmission according to claim 1, wherein: the sensor mounting seat (15) is provided with a top plate (15-2) and a plurality of support legs (15-1) circularly arranged on the top plate, and the plurality of support legs (15-1) penetrate through gaps on the plate body part (1-2) to be connected with the connecting cylinder (4); the horizontal adjusting column (14) is arranged on the top plate in a penetrating way; the top plate is a circle and is provided with a plurality of through holes, the measuring sensors (5) are respectively arranged in the through holes of the top plate in a penetrating mode through locking sleeves, and the locking sleeves are connected with the top plate through set screws.
3. The apparatus for measuring axial clearance of a rotating shaft of a transmission according to claim 1, wherein: the sensor mounting seat (15) is in control connection with the controller.
4. A gauge of axial clearance of a rotating shaft of a transmission according to claim 1, 2 or 3, wherein: the adjusting column retainer ring (17) is fixed on the column body through a cylindrical pin.
5. The apparatus for measuring axial clearance of a rotating shaft of a transmission according to claim 4, wherein: the first electromagnetic directional valve and the second electromagnetic directional valve are both two-position three-way directional valves.
6. A measuring method for measuring axial clearance of a rotating shaft of a transmission comprises a box body and the rotating shaft arranged in the box body, wherein one end of the rotating shaft is arranged in a bearing hole of the box body through a conical bearing, and the measuring method is characterized in that: the depth values (H2) of a plurality of detection points between the upper end face of the box body and the upper end face of the conical bearing outer ring are measured by a measuring instrument of the axial clearance of the rotating shaft of the transmission, the measuring instrument of the axial clearance of the rotating shaft of the transmission comprises an inner sleeve (1), the inner sleeve (1) is provided with a measuring inner cylinder part (1-1) and a plate part (1-2) connected with the top of the measuring inner cylinder part (1-1), a connecting cylinder (4) is sleeved outside the measuring inner cylinder part (1-1), the lower part of the connecting cylinder (4) is connected with a measuring outer connecting cylinder (2), the measuring outer connecting cylinder (2) is provided with a plurality of detection bosses extending downwards, detection holes communicated with air gap detection ports of the lower end face are arranged in the detection bosses, and the detection holes are connected with an air gap detection device (18); the upper part of the connecting cylinder (4) is connected with a sensor mounting seat (15) arranged above the plate body part (1-2), a horizontal adjusting column (14) is arranged on the sensor mounting seat (15) in a penetrating manner, the horizontal adjusting column (14) is provided with a column body and a ball head part arranged at the lower end of the column body, and the ball head part is movably arranged in a spherical crown-shaped groove of the plate body part (1-2); an adjusting column retaining ring (17) is arranged between the plate body part (1-2) and the sensor mounting seat (15) of the column body, and a spring (16) is sleeved on the column body between the adjusting column retaining ring (17) and the sensor mounting seat (15); a plurality of measuring sensors (5) with one ends abutting against the upper end face of the plate body part are circumferentially distributed on the sensor mounting seat (15), and the measuring sensors (5) are in control connection with a controller; an outer connecting cylinder is arranged above the sensor mounting seat (15), the outer connecting cylinder is provided with an outer measuring cylinder (12) and a spherical horizontal adjusting block (11) arranged at the top of the outer measuring cylinder (12), and the spherical horizontal adjusting block (11) is movably arranged in a spherical-crown-shaped groove of the transition connecting plate (10); an outer spring (13) is sleeved outside the outer measuring cylinder (12); the sensor mounting seat (15) is provided with a top plate (15-2) and a plurality of support legs (15-1) circularly arranged on the top plate, and the plurality of support legs (15-1) penetrate through gaps on the plate body part (1-2) to be connected with the connecting cylinder (4); the horizontal adjusting column (14) is arranged on the top plate in a penetrating way; the top plate is circularly provided with a plurality of through holes, a plurality of measuring sensors (5) are respectively arranged in the through holes of the top plate in a penetrating manner through locking sleeves, and the locking sleeves are connected with the top plate through set screws; the air gap detection device comprises an air pipeline provided with an air inlet, the air pipeline is connected with a silencer through a first electromagnetic directional valve, a pressure reducing valve and a second electromagnetic directional valve in sequence, an air pipe branch is connected on the air pipeline between the pressure reducing valve and the second electromagnetic directional valve and connected with a detection hole of a detection boss through a sensor module, a pressure sensor in control connection with the controller is arranged on the air pipe branch between the sensor module and the pressure reducing valve, the sensor module is connected with a leakage amount display and is in control connection with the controller,
the measuring method comprises the following steps:
A. abutting the lower end face of the measuring inner cylinder part (1-1) of the inner sleeve (1) of the measuring instrument of the axial clearance of the rotating shaft of the transmission with the upper end face of the outer ring of the conical bearing (300);
B. adjusting the spherical horizontal adjusting block (11) to enable the lower end faces of the plurality of detection bosses (2-1) of the measuring outer connecting cylinder (2) to be abutted against the upper end face of the box body (100);
C. starting the air gap detection device, and judging the fitting condition of the lower end face of the detection boss and the upper end face of the box body according to the data value of the gas leakage amount displayed on the leakage amount display;
when the data value of the gas leakage quantity displayed by the leakage quantity display is larger than a set value, the lower end face of the detection boss is completely attached to the upper end face of the box body by adjusting the spherical horizontal adjusting block (11);
and when the data value of the gas leakage quantity displayed by the leakage quantity display is smaller than a set value, the controller controls the measuring sensors (5) to measure depth value data of the detecting points.
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| CN109724544B (en) * | 2019-01-14 | 2020-09-11 | 山东帝胜变速器有限公司 | Method for correcting piston clearance of brake belt of special automatic transmission |
| CN111977026B (en) * | 2020-07-29 | 2022-11-22 | 西安飞机工业（集团）有限责任公司 | Method for detecting circular opening of aircraft air inlet |
| CN115388836B (en) * | 2022-10-31 | 2023-03-24 | 坤泰车辆系统(常州)股份有限公司 | Dynamic measurement device and measurement method for dimension of hybrid power transmission shafting |
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