Axle bearing press-fitting in-place detection and clearance measurement equipment

Abstract

The utility model discloses a wheel shaft bearing press-fitting in-place detection and clearance measurement device. The whole device is composed of a frame body (1), a lifting mechanism (2), a pushing and blocking wheel mechanism (3), a centering mechanism (4), a clearance measurement mechanism (5), a reference lifting mechanism (6) and a shaft end measurement mechanism (7). The utility model relates to the technical field of railway vehicle maintenance, in particular to a rear stop and bearing press-fitting device of a railway vehicle axle, which can realize automatic operation completion of a detection process, reduces errors generated during manual measurement of numerical values, improves measurement precision, solves the problem of overhigh labor intensity during manual measurement, and improves the detection efficiency. Potential safety hazards in the measurement process are reduced, a foundation is laid for unmanned operation of axle bearing press fitting of railway vehicles, the overhaul efficiency is improved, the overhaul quality is improved, and the device is important equipment in the railway vehicle overhaul process.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway vehicle maintenance, in particular to a bearing press-fit detection and clearance measurement device. Background Art

[0002] During the inspection and maintenance of railway vehicle axles, it is necessary to press-fit bearings at both ends of the wheelset after inspection. The bearing clearance and installation dimensions of the pressed bearings must meet the qualified standards. It is necessary to manually use measuring tools on site to measure the pressed bearings. According to the recorded measurement data, it is manually determined whether the pressed bearings are qualified. Due to the large number of axles to be inspected, high work intensity, and numerical errors in manual measurement, the risk of missed inspections and wrong inspections is prone to occur, resulting in problems such as low axle inspection quality and low inspection efficiency. The wheel axle bearing press-fit detection and clearance measurement equipment is a device that can automatically measure the clearance and press-fit dimensions of the wheel axle bearings. Utility Model Content

[0003] The purpose of the utility model is to provide a wheel axle bearing press-fit detection and clearance measurement device that can reduce the safety hazards in the process of repairing the vehicle body, reduce the labor intensity of the operator, and improve the detection accuracy, so as to solve the problems existing in the above-mentioned prior art, thereby reducing the labor intensity of the operator and improving the maintenance efficiency and maintenance quality of the equipment.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] A wheel axle bearing press-fit detection and clearance measurement device, characterized in that the whole machine consists of a frame (1), a lifting mechanism (2), a push wheel mechanism (3), a centering mechanism (4), a clearance measuring mechanism (5), a reference lifting mechanism (6), and an axle end measuring mechanism (7); the frame (1) is fixed in a foundation pit by anchor bolts, and consists of a column (11), a lower base (12), and an upper crossbeam (13); the inner sides of the columns (11) on both sides of the frame (1) are provided with a clearance measuring mechanism (5) and a reference lifting mechanism (6), the lower base (12) of the frame (1) is centrally mounted with a lifting mechanism (2) and a push wheel mechanism (3), and the column (11) is centrally mounted with a centering mechanism (4), and the centering mechanism (4), the clearance measuring mechanism (5), the reference lifting mechanism (6), and the axle end measuring mechanism (7) are symmetrically mounted with the axis of the frame (1) as the center.

[0006] Preferably, the wheel axle bearing press-fit detection and clearance measurement equipment is characterized in that the lifting mechanism (2) is composed of a lifting seat (21), a guide column (22), a limit pad (23), a tug roller frame (24), and a lifting cylinder (25); the lifting seat (21) is centrally installed on the lower base (12), the lifting cylinder (25) is fixed on the lifting seat (21), there are two guide columns (22), which are respectively installed on both sides of the lifting cylinder (25), the limit pad (23) is installed at the bottom of the guide column (22) to limit the lifting stroke, and the tug roller frame (24) is connected through the lifting cylinder (25) and the guide column (22).

[0007] Preferably, the wheel axle bearing press-fit detection and clearance measurement equipment is characterized in that the push-wheel mechanism (3) is composed of a guide rail (31), a push-wheel plate (32), a swing pin shaft (33), and a push-wheel cylinder (34); the push-wheel plate (32) is connected to the guide rail (31) through the swing pin shaft (33), the push-wheel cylinder (34) is installed on the guide rail (31), and the head of the push-wheel cylinder (34) is connected to the push-wheel plate (32).

[0008] Preferably, the axle bearing press-fit detection and clearance measurement equipment is characterized in that the centering mechanism (4) is composed of a centering top seat (41), a centering slide rail (42), a centering guide rod (43), a centering connecting rod (44), a center turntable (45) and a centering cylinder (46); the centering top seat (41) is installed in the columns (11) on both sides of the frame (1) through the centering slide rail (42), and the center lines of the top seats (41) on both sides are the same horizontal straight line; the centering top seat (41), the centering slide rail (42), the centering guide rod (43) and the centering cylinder (46) are in total two sets, which are fixed on the columns (11) respectively, and the center turntable (45) is installed at the center position of the lower base (12), and a centering connecting rod (44) is connected to each side, and the centering connecting rods on both sides are (44) are respectively connected to the centering guide rods (43) on both sides. The central turntable (45) can ensure the synchronization of the horizontal movement of the top seats (41) on both sides of the equipment, and ensure that the centering mechanism (4) can effectively center the wheel axle to be measured; the centering top seat (41) is composed of a base (411), a top (412), a top shaft (413), and a cover (414); the top (412) is installed in the shaft hole of the top shaft (413), and a spring is installed in the shaft hole of the top shaft (413); the cover (414) is installed on the shaft end face of the top shaft (413) to prevent the top (412) from separating from the top shaft (413); the top shaft (413) is installed on the shaft hole of the base (411), and its end extends from the shaft hole on the other side of the base (411) and is fixed with a round nut.

[0009] Preferably, the wheel axle bearing press-fit detection and clearance measurement equipment is characterized in that the clearance measurement mechanism (5) is composed of a fixed slide plate (51), a lifting slide platform (52), a lifting cylinder (53), left and right workstation cylinders (54), left and right workstation platforms (55), front and rear cylinders (56), a tension pressure sensor (57), a clamping platform (58), a clamping block (59), a clamping cam (510), a clamping cylinder (511), a displacement cylinder (512), a linear displacement sensor (513), a swing arm cylinder (514), and a reference swing arm (515); The fixed slide plate (51) is installed on the inner side of the column (11) and is located close to the upper crossbeam (13). The lifting slide platform (52) is connected to the fixed slide plate (51) through a linear slide. The cylinder shaft head of the lifting cylinder (53) is connected to the lifting slide platform (52). The cylinder base of the lifting cylinder (53) is connected to the fixed slide plate (51). The cylinder seats of the left and right workstation cylinders (54) are connected to the upper surface of the lifting slide platform (52). The left and right workstation platforms (55) are connected to the lower surface of the lifting slide platform (52) through a linear slide. The left and right workstation platforms (55) are connected to the lower surface of the lifting slide platform (52). ) is connected to the cylinder shaft heads of the left and right working cylinders (54), the cylinder seats of the front and rear cylinders (56) are connected to the bottom planes of the left and right working platforms (55), one end of the tension pressure sensor (57) is connected to the cylinder heads of the front and rear cylinders (56), and the other end is connected to the top of the clamping platform (58), the clamping platform (58) is connected to the linear slide rail, and its lower plane is connected to the cylinder base of the clamping cylinder (511), the cylinder shaft head of the clamping cylinder (511) is hinged to the clamping cam (510), and the clamping block (59) is hinged to the protrusion below the clamping platform (58). The inner side surface is tangent to the cam surface of the clamping cam (510); the clamping block (59), the clamping cam (510), and the clamping cylinder (511) are each in two pieces, which are respectively installed on both sides below the clamping platform (58); the cylinder seat of the displacement cylinder (512) is installed in the middle below the clamping platform (58); the linear displacement sensor (513) is installed on the cylinder rod head of the displacement cylinder (512); the swing arm cylinder (514) is installed on the inner side of the clamping surface of the clamping platform (58); and the cylinder rod head of the swing arm cylinder (514) is installed with a reference swing arm (515).

[0010] Preferably, the wheel axle bearing press-fit detection and clearance measurement equipment is characterized in that the reference lifting mechanism (6) is composed of a reference lifting cylinder (61), a reference mounting plate (62), a reference lifting platform (63), a reference plate (64), and a reference calibration cylinder (65); the cylinder shaft head of the reference lifting cylinder (61) is connected to the reference lifting platform (63), and its side is connected to the reference mounting plate (62) through a linear slide rail; the reference mounting plate (62) is installed on the inner side of the column (11) and is close to the lower base (12); the cylinder seat of the reference calibration cylinder (65) is installed on the reference lifting platform (63); the reference plate (64) is connected to the cylinder shaft head of the reference calibration cylinder (65), and it is connected to the top of the reference lifting platform (63) through a linear slide rail.

[0011] Preferably, the wheel axle bearing press-fit detection and clearance measurement equipment is characterized in that the shaft end measurement mechanism (7) is composed of a shaft end measurement mounting plate (71), a shaft type switching cylinder (72), a cylinder frame (73), a displacement sensor (74), a shaft end measurement displacement cylinder (75), and a detection plate (76); the shaft end measurement mounting plate (71) is mounted on the end face of the centering top seat (41), and shaft type switching cylinders (72) are mounted on both sides thereof, a cylinder frame (73) is mounted on the shaft type switching cylinder (72), a displacement sensor (74) is mounted on the cylinder frame (73), a shaft end measurement displacement cylinder (75) is mounted on the side of the cylinder frame (73), a cylinder shaft head of the shaft end measurement displacement cylinder (75) is mounted with a detection plate (76), and a detection rod of the displacement sensor (74) is against the back of the detection plate (76).

[0012] Compared with the prior art, the utility model has achieved the following beneficial technical effects:

[0013] 1. High degree of automation, strong applicability and precise positioning.

[0014] 2. The double-axis type switching of the clearance measuring mechanism has two types of detection axes.

[0015] 3. Unmanned operation of wheel axle bearing press-fit detection and clearance measurement.

[0016] 4. Improve maintenance efficiency and enhance maintenance quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 This is a front view of a wheel bearing press-fit detection and clearance measurement device;

[0019] Figure 2 Axonometric drawing of a wheel bearing press-fit detection and clearance measurement equipment;

[0020] Figure 3 This is an axonometric diagram of a wheel bearing press-fit detection and clearance measurement equipment frame;

[0021] Figure 4 This is a front view of the lifting mechanism of a wheel axle bearing press-fit detection and clearance measurement equipment;

[0022] Figure 5 This is an axonometric diagram of a wheel bearing press-fit detection and clearance measurement device, which is a push-wheel mechanism.

[0023] Figure 6 This is a front view of the centering mechanism of a wheel bearing press-fit detection and clearance measurement device;

[0024] Figure 7 A planing diagram of the centering seat of a wheel bearing press-fit detection and clearance measurement equipment;

[0025] Figure 8 It is a schematic diagram of the kinematic structure of the clearance measuring mechanism of a wheel axle bearing press-fit detection and clearance measuring device;

[0026] Fig. 9 It is a schematic diagram of the measurement structure of the clearance measuring mechanism of a wheel axle bearing press-fit detection and clearance measuring equipment;

[0027] Fig.10 This is an axonometric diagram of a reference lifting mechanism for a wheel bearing press-fit detection and clearance measurement device;

[0028] Fig.11 This is an axonometric diagram of the shaft end measuring mechanism of a wheel bearing press-fit detection and clearance measurement equipment;

[0029] Markings in the figure: 1-frame, 2-lifting mechanism, 3-pushing wheel mechanism, 4-centering mechanism, 5-clearance measuring mechanism, 6-reference lifting mechanism, 7-axis end measuring mechanism, 11-column, 12-lower base, 13-upper crossbeam, 21-lifting seat, 22-guide column, 23-limiting pad, 24-tug roller frame, 25-lifting cylinder, 31-guide rail, 32-push wheel plate, 33-swing pin, 34-push wheel cylinder, 41-centering top seat, 42-centering slide rail, 43-centering guide rod, 44-centering connecting rod, 46-center turntable, 47-centering cylinder, 51-fixed slide rail plate, 52-lifting slide rail platform, 53-lifting Lowering cylinder, 54-left and right workstation cylinder, 55-left and right workstation platform, 56-front and rear cylinder, 57-tension pressure sensor, 58-clamping platform, 59-clamping block, 510-clamping cam, 511-clamping cylinder, 512-displacement cylinder, 513-linear displacement sensor, 514-swing arm cylinder, 515-reference swing arm, 61-reference lifting cylinder, 62-reference mounting plate, 63-reference lifting platform, 64-reference plate, 65-reference calibration cylinder, 71-shaft end measurement mounting plate, 72-shaft type switching cylinder, 73-cylinder frame, 74-displacement sensor, 75-shaft end measurement displacement cylinder, 76-detection plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Please refer to the attached Figure 1 And attached Figure 2 The utility model is a wheel axle bearing press-fit detection and clearance measurement device, which is characterized in that the whole machine consists of a frame (1), a lifting mechanism (2), a push wheel mechanism (3), a centering mechanism (4), a clearance measuring mechanism (5), a reference lifting mechanism (6), and an axle end measuring mechanism (7); the frame (1) is fixed in a foundation pit by anchor bolts, and consists of a column (11), a lower base (12), and an upper crossbeam (13); the inner sides of the columns (11) on both sides of the frame (1) are provided with a clearance measuring mechanism (5) and a reference lifting mechanism (6), the lower base (12) of the frame (1) is centrally mounted with a wheel pair lifting device (2) and a push wheel device (3), and the column (11) is mounted with a centering mechanism (4), and the centering mechanism (4), the clearance measuring mechanism (5), the reference lifting mechanism (6), and the axle end measuring mechanism (7) are symmetrically mounted with the axis of the frame (1) as the center.

[0032] Please refer to the attached Figure 3 : The frame (1) is composed of a column (11), a lower base (12), and an upper crossbeam (13); the columns (11) are respectively placed on both sides of the measuring machine and connect the bottom lower base (12) and the top upper crossbeam (13).

[0033] Please refer to the attached Figure 4 The lifting mechanism (2) is composed of a lifting seat (21), a guide column (22), a limit pad (23), a tug roller frame (24) and a lifting cylinder (25); the lifting seat (21) is centrally mounted on the lower base (12), the lifting cylinder (25) is fixed on the lifting seat (21), there are two guide columns (22), which are respectively mounted on both sides of the lifting cylinder (25), and the limit pad (23) is mounted on the bottom of the guide column (22) to limit the lifting stroke. The tugboat roller frame (24) is connected via a lifting cylinder (25) and a guide column (22). When the wheel axle enters the work station, the lifting cylinder (25) extends a cylinder rod to drive the tugboat roller frame (24) to lift the wheel axle to the centering position of the centering mechanism (4). When the wheel axle measurement work is completed and the top (412) of the centering mechanism (4) falls off the wheel axle contact surface, the lifting cylinder (25) retracts the cylinder rod to drive the tugboat roller frame (24) to lift the wheel axle and lower it, placing the wheel axle on the guide rail (31).

[0034] Please refer to the attached Figure 5 The wheel pushing mechanism (3) is composed of a guide rail (31), a wheel pushing plate (32), a swing pin shaft (33), and a wheel pushing cylinder (34); the wheel pushing plate (32) is connected to the guide rail (31) through the swing pin shaft (33); the wheel pushing cylinder (34) is installed on the guide rail (31); the head of the wheel pushing cylinder (34) is connected to the wheel pushing plate (32); when the cylinder rod of the wheel pushing cylinder (34) is extended, the wheel pushing plate (32) rotates clockwise to extend the short side of the wheel pushing plate (32), so that the wheel pushing mechanism (3) can block the wheel axle passing through the guide rail (31); when the cylinder rod of the wheel pushing cylinder (34) is retracted, the wheel pushing plate (32) rotates counterclockwise to extend the long side of the wheel pushing plate (32), so that the wheel axle on the guide rail (31) can be pushed out of the work station.

[0035] Please refer to the attached Figure 6The centering mechanism (4) is composed of a centering top seat (41), a centering slide rail (42), a centering guide rod (43), a centering connecting rod (44), a center turntable (45) and a centering oil cylinder (46); the centering top seat (41) is installed in the columns (11) on both sides of the frame (1) through the centering slide rail (42), and the center lines of the centering top seats (41) on both sides are the same horizontal straight line. There are two sets of the centering top seat (41), the centering slide rail (42), the centering guide rod (43) and the centering oil cylinder (46), which are fixed on the columns (11) respectively. (45) is installed at the center of the lower base (12), and is connected to a centering connecting rod (44) on both sides. The centering connecting rods (44) on both sides are respectively connected to the centering guide rods (43) on both sides. When the lifting mechanism (2) lifts the wheel axle to the centering height through the tug roller frame (24), the tops (412) on both sides are inserted into the center holes at both ends of the wheel axle under the drive of the middle oil cylinder (46). Since the center turntable (45) connects the centering top seats (41) on both sides through the centering guide rod (43) and the centering connecting rod (44), the centering top seats (41) on both sides move synchronously to ensure the centering of the wheel axle.

[0036] Please refer to the attached Figure 7 The centering top seat (41) is composed of a base (411), a top (412), a top shaft (413), and a stop cover (414); the top (412) is installed in the shaft hole of the top shaft (413), a spring is installed in the shaft hole of the top shaft (413), the stop cover (414) is installed on the shaft end face of the top shaft (413) to prevent the top (412) from separating from the top shaft (413), and the top shaft (413) is installed on the shaft hole of the base (411), and its end extends from the shaft hole on the other side of the base (411) and is fixed by a round nut.

[0037] Please refer to the attached Figure 7 And attached Figure 8The clearance measuring mechanism (5) comprises a fixed slide plate (51), a lifting slide platform (52), a lifting cylinder (53), a left and right workstation cylinder (54), a left and right workstation platform (55), a front and rear cylinder (56), a tension pressure sensor (57), a clamping platform (58), a clamping block (59), a clamping cam (510), a clamping cylinder (511), a displacement cylinder (512), a linear displacement sensor (513), a swing arm cylinder (514), and a reference swing arm (515). The fixed slide plate (51) is installed on the inner side of the column (11) and is located close to the upper crossbeam (13). The lifting slide platform (52) is connected to the fixed slide plate (51) through a linear slide. The lifting cylinder (53) ) is connected to the lifting slide rail platform (52), the cylinder base of the lifting cylinder (53) is connected to the fixed slide rail plate (51), the cylinder seat of the left and right workstation cylinders (54) is connected to the top of the lifting slide rail platform (52), the left and right workstation platforms (55) are connected to the bottom of the lifting slide rail platform (52) through a linear slide rail, the left and right workstation platforms (55) are connected to the cylinder shaft heads of the left and right workstation cylinders (54), the cylinder seats of the front and rear cylinders (56) are connected to the bottom plane of the left and right workstation platforms (55), one end of the tension and pressure sensor (57) is connected to the cylinder heads of the front and rear cylinders (56), and the other end is connected to the top of the clamping platform (58), and the clamping platform (58) is connected to the linear slide rail. The slide rail is connected, and its lower plane is connected to the cylinder base of the clamping cylinder (511). The cylinder shaft head of the clamping cylinder (511) is hinged to the clamping cam (510). The clamping block (59) is hinged to the protrusion below the clamping platform (58), and its inner side surface is tangent to the cam surface of the clamping cam (510). The number of the clamping block (59), the clamping cam (510), and the clamping cylinder (511) are two, which are respectively installed on both sides below the clamping platform (58). The cylinder seat of the displacement cylinder (512) is installed in the middle of the clamping platform (58). The linear displacement sensor (513) is installed on the cylinder rod head of the displacement cylinder (512). The swing arm cylinder (514) is installed on the clamping platform (5 8) On the inner side of the clamping surface, the cylinder rod head of the swing arm cylinder (514) is installed with a reference swing arm (515). When the centering mechanism (4) completes the axle centering, the cylinder rods of the left and right station cylinders (54) extend or retract, driving the clamping platform (58) to switch to the shaft type station that needs to be clamped. The lifting cylinder (53) extends the cylinder rod to drive the lifting slide platform (52) to descend, so that the reference edge on one side of the clamping platform (58) is close to the end face of one side of the bearing outer hub. The clamping cylinder (511) extends the cylinder rod and rotates the clamping block (59) to clamp the other side of the bearing outer hub. At this time, the clamping work of the mechanism is completed. Then, the displacement cylinder (512) extends the cylinder rod to drive the linear displacement sensor (513) to move so that its needle contacts the outer side of the wheel hub.Then, the cylinder rods of the front and rear cylinders (56) are extended and retracted respectively, and the forces in the front and rear directions are applied to the clamping platform (58). At this time, the operating system collects the force and displacement data related to the clearance measurement through the tension pressure sensor (57) and the linear displacement sensor (513). After the measurement is completed, the linear displacement sensor (513) is retracted by the displacement cylinder (512), the clamping block (59) is released, the lifting slide platform (52) rises, and the reference surface of the reference swing arm (515) is used to calibrate the origin of the needle of the linear displacement sensor (513) regularly. The reference swing arm (515) is retracted when not in use.

[0038] Please refer to the attached Fig.10 The reference lifting mechanism (6) is composed of a reference lifting cylinder (61), a reference mounting plate (62), a reference lifting platform (63), a reference plate (64), and a reference calibration cylinder (65); the reference mounting plate (62) is mounted on the inner side of the column (11) and is located close to the lower base (12); the cylinder seat of the reference lifting cylinder (61) is mounted on the reference mounting plate (62); the cylinder shaft head of the reference lifting cylinder (61) is connected to the reference lifting platform (63); the side of the reference lifting platform (63) is connected to the reference mounting plate (62) via a linear slide rail; the cylinder seat of the reference calibration cylinder (65) is mounted on the reference lifting platform (63); the reference plate (64) is connected to the reference calibration cylinder (65) The reference plate (64) is connected to the reference lifting platform (63) through a linear slide rail. The mechanism is used for the displacement sensor (74) to perform reference calibration before the shaft end measuring mechanism (7) measures the pressed-in size. The reference lifting cylinder (61) drives the cylinder rod to extend to raise the reference lifting platform (63). Then, the cylinder rod of the reference calibration cylinder (65) is retracted to make the reference surface of the reference plate (64) contact the end surface of the baffle (414). After the extended detection plate (76) contacts the reference plate (64), the displacement sensor (74) completes the reference calibration. The cylinder rod of the reference calibration cylinder (65) is extended to make the reference plate (64) and the baffle (414) disengage, and the reference lifting platform (63) descends.

[0039] Please refer to the attached Fig.11The shaft end measuring mechanism (7) is composed of a shaft end measuring mounting plate (71), a shaft type switching cylinder (72), a cylinder frame (73), a displacement sensor (74), a shaft end measuring displacement cylinder (75), and a detection plate (76); the shaft end measuring mounting plate (71) is mounted on the end surface of the centering top seat (41), the shaft end measuring mounting plate (71) is respectively mounted with shaft type switching cylinders (72) on both sides, the shaft type switching cylinder (72) is mounted with a cylinder frame (73), the cylinder frame (73) is mounted with a displacement sensor (74) on the top, and the shaft end measuring mounting plate (71) is mounted with a displacement sensor (74) on the top. A shaft end displacement measuring cylinder (75) is installed on the side of the cylinder frame (73), and a detection plate (76) is installed on the cylinder shaft head of the shaft end displacement measuring cylinder (75). The detection rod of the displacement sensor (74) is against the back of the detection plate (76). The shaft type switching cylinder (72) can drive the detection plate (76) to move, thereby changing the spacing between the detection plates (76) on both sides to adapt to two bearing models. After the reference calibration, the shaft end displacement measuring cylinder (75) drives the detection plate (76) to touch the inner ring of the bearing, and the operating system records the measured data through the displacement sensor (74).

[0040] The utility model uses specific examples to illustrate the principle and implementation of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A wheel bearing press-fit detection and clearance measurement device, characterized in that The whole machine is composed of a frame (1), a lifting mechanism (2), a push wheel mechanism (3), a centering mechanism (4), a clearance measuring mechanism (5), a reference lifting mechanism (6), and an axle end measuring mechanism (7); the frame (1) is fixed in a foundation pit by anchor bolts, and is composed of a column (11), a lower base (12), and an upper crossbeam (13); the inner sides of the columns (11) on both sides of the frame (1) are provided with a clearance measuring mechanism (5) and a reference lifting mechanism (6); the lower base (12) of the frame (1) is centrally mounted with a lifting mechanism (2) and a push wheel mechanism (3); the column (11) is centrally mounted with a centering mechanism (4); the centering mechanism (4), the clearance measuring mechanism (5), the reference lifting mechanism (6), and the axle end measuring mechanism (7) are symmetrically mounted with the axis of the frame (1) as the center.

2. A wheel bearing press-fit detection and clearance measurement device according to claim 1, characterized in that The lifting mechanism (2) is composed of a lifting seat (21), a guide column (22), a limit pad (23), a tug roller frame (24), and a lifting cylinder (25); the lifting seat (21) is centrally mounted on the lower base (12), the lifting cylinder (25) is fixed on the lifting seat (21), there are two guide columns (22), which are respectively mounted on both sides of the lifting cylinder (25), the limit pad (23) is mounted on the bottom of the guide column (22) to limit the lifting stroke, and the tug roller frame (24) is connected through the lifting cylinder (25) and the guide column (22).

3. The wheel bearing press-fit detection and clearance measurement device according to claim 1 is characterized in that The wheel pushing mechanism (3) is composed of a guide rail (31), a wheel pushing plate (32), a swing pin shaft (33), and a wheel pushing cylinder (34); the wheel pushing plate (32) is connected to the guide rail (31) through the swing pin shaft (33), the wheel pushing cylinder (34) is installed on the guide rail (31), and the head of the wheel pushing cylinder (34) is connected to the wheel pushing plate (32).

4. The wheel bearing press-fit detection and clearance measurement device according to claim 1 is characterized in that The centering mechanism (4) is composed of a centering top seat (41), a centering slide rail (42), a centering guide rod (43), a centering connecting rod (44), a center turntable (45) and a centering oil cylinder (46); the centering top seat (41) is installed in the columns (11) on both sides of the frame (1) through the centering slide rail (42), and the center lines of the top seats (41) on both sides are the same horizontal straight line; the centering top seat (41), the centering slide rail (42), the centering guide rod (43) and the centering oil cylinder (46) are in total two sets, which are fixed on the columns (11) respectively, and the center turntable (45) is installed at the center position of the lower base (12), and a centering connecting rod (44) is connected to each of the two sides, and the centering connecting rods (44) on both sides are respectively connected to the centering guide rods (4 3), the central turntable (45) can ensure the synchronization of horizontal movement of the top seats (41) on both sides of the equipment, and ensure that the centering mechanism (4) can effectively center the wheel axle to be measured; the centering top seat (41) is composed of a base (411), a top (412), a top shaft (413), and a cover (414); the top (412) is installed in the shaft hole of the top shaft (413), a spring is installed in the shaft hole of the top shaft (413), the cover (414) is installed on the shaft end face of the top shaft (413), and is used to prevent the top (412) from separating from the top shaft (413), the top shaft (413) is installed on the shaft hole of the base (411), and its end extends from the shaft hole on the other side of the base (411) and is fixed by a round nut.

5. The wheel bearing press-fit detection and clearance measurement device according to claim 1 is characterized in that The clearance measuring mechanism (5) is composed of a fixed slide rail plate (51), a lifting slide rail platform (52), a lifting cylinder (53), a left and right work station cylinder (54), a left and right work station platform (55), a front and rear cylinder (56), a tension pressure sensor (57), a clamping platform (58), a clamping block (59), a clamping cam (510), a clamping cylinder (511), a displacement cylinder (512), a linear displacement sensor (513), a swing arm cylinder (514), and a reference swing arm (515); the fixed slide rail plate (51) is installed on the inner side of the column (11). The lifting slide platform (52) is located near the upper crossbeam (13), the lifting slide platform (52) is connected to the fixed slide plate (51) through a linear slide, the cylinder shaft head of the lifting cylinder (53) is connected to the lifting slide platform (52), the cylinder base of the lifting cylinder (53) is connected to the fixed slide plate (51), the cylinder seat of the left and right workstation cylinders (54) is connected to the upper surface of the lifting slide platform (52), the left and right workstation platforms (55) are connected to the lower surface of the lifting slide platform (52) through a linear slide, and the left and right workstation platforms (55) are connected to the cylinders of the left and right workstation cylinders (54). The front and rear cylinders (56) are connected to the shaft head, the cylinder seat of the front and rear cylinders (56) is connected to the bottom plane of the left and right workstation platforms (55), one end of the tension pressure sensor (57) is connected to the cylinder head of the front and rear cylinders (56), and the other end is connected to the top of the clamping platform (58), the clamping platform (58) is connected to the linear slide rail, and its lower plane is connected to the cylinder base of the clamping cylinder (511), the cylinder shaft head of the clamping cylinder (511) is hinged to the clamping cam (510), the clamping block (59) is hinged to the protrusion below the clamping platform (58), and its inner side surface is hinged to the clamping The cam surfaces of the clamping cam (510) are tangent to each other. The clamping block (59), the clamping cam (510) and the clamping cylinder (511) are each in two pieces, which are respectively installed on both sides below the clamping platform (58). The cylinder seat of the displacement cylinder (512) is installed in the middle below the clamping platform (58). The linear displacement sensor (513) is installed on the cylinder rod head of the displacement cylinder (512). The swing arm cylinder (514) is installed on the inner side of the clamping surface of the clamping platform (58). The cylinder rod head of the swing arm cylinder (514) is installed with a reference swing arm (515).

6. The wheel bearing press-fit detection and clearance measurement device according to claim 1 is characterized in that The reference lifting mechanism (6) is composed of a reference lifting cylinder (61), a reference mounting plate (62), a reference lifting platform (63), a reference plate (64), and a reference calibration cylinder (65); the cylinder shaft head of the reference lifting cylinder (61) is connected to the reference lifting platform (63), and its side is connected to the reference mounting plate (62) through a linear slide rail; the reference mounting plate (62) is installed on the inner side of the column (11) and is located close to the lower base (12); the cylinder seat of the reference calibration cylinder (65) is installed on the reference lifting platform (63); the reference plate (64) is connected to the cylinder shaft head of the reference calibration cylinder (65), and is connected to the top of the reference lifting platform (63) through a linear slide rail.

7. The wheel bearing press-fit detection and clearance measurement device according to claim 1 is characterized in that The shaft end measuring mechanism (7) is composed of a shaft end measuring mounting plate (71), a shaft type switching cylinder (72), a cylinder frame (73), a displacement sensor (74), a shaft end measuring displacement cylinder (75), and a detection plate (76); the shaft end measuring mounting plate (71) is mounted on the end surface of the centering top seat (41), and the shaft type switching cylinder (72) is mounted on both sides of the shaft end measuring mounting plate (71), the shaft type switching cylinder (72) is mounted on the cylinder frame (73), the displacement sensor (74) is mounted on the cylinder frame (73), the shaft end measuring displacement cylinder (75) is mounted on the side of the cylinder frame (73), the cylinder shaft head of the shaft end measuring displacement cylinder (75) is mounted with a detection plate (76), and the detection rod of the displacement sensor (74) is against the back of the detection plate (76).

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