Hub automatic rotation detection device

Abstract

The utility model discloses a wheel hub automatic rotation detection device, which comprises an operation table, a wheel hub, support rollers, a roller driving assembly and a wheel hub stabilizing mechanism, the operation table is provided with two mutually parallel support rollers, the roller driving assembly is connected with the two support rollers, the roller driving assembly can drive the two support rollers to synchronously rotate in the same direction, and the wheel hub stabilizing mechanism is connected with the wheel hub stabilizing mechanism. A hub to be detected is placed between the two supporting rollers, and the two supporting rollers support the hub from the bottom and drive the hub to rotate relatively. The hub stabilizing mechanism is fixedly arranged on the operation table and comprises a vertical lead screw module and a lifting limiting assembly, the vertical lead screw module is fixedly connected to the operation table, the lifting limiting assembly is connected to the vertical lead screw module, and the lifting limiting assembly can limit the top face of a hub. The hub is kept in a state of rotating around the axis of the hub all the time; the hub can rotate around the axis of the hub at a constant speed, workers can conveniently check the hub, operation is easy, and labor is saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric power assist bicycle technical field, concretely relates to a wheel hub automatic rotation detection device. BACKGROUND

[0002] Wheel hub is an important component of vehicle, and the state of wheel hub directly affects driving safety, if wheel hub appears deformation or crack, will influence wheel rotation performance, lead to unstable driving, even cause safety accident. In addition, if wheel hub surface has scratch or corrosion, possibly accelerates wear in driving process, and then influences the strength and rigidity of wheel hub, and there is security risk. At present, when detecting the wheel hub which is disassembled, usually adopts the way of manual hand wheel hub slow rotation to check and overhaul, and the worker needs to check the surface scratch, corrosion sign, deformation and crack of wheel hub one by one, because wheel hub is heavy, and the worker is difficult to operate at uniform speed and stability when rotating, and maintaining the stability of wheel hub also distracts the worker, and the inspection is not meticulous enough, and some wrong judgments are produced, and the subsequent repair of wheel hub is influenced. CONTENT OF THE UTILITY MODEL

[0003] In view of the above problems and technical needs, the utility model provides a wheel hub automatic rotation detection device, which can realize automatic rotation operation of the wheel hub, make the wheel hub rotate at uniform speed around its own axis, facilitate the worker to check the wheel hub, and is simple to operate and saves labor.

[0004] The technical scheme of the utility model is as follows: a wheel hub automatic rotation detection device, which comprises an operation table, a wheel hub, a supporting roller, a roller drive assembly and a wheel hub stabilizing mechanism, two supporting rollers parallel to each other are arranged on the operation table, the roller drive assembly is connected with the two supporting rollers, the roller drive assembly can drive the two supporting rollers to rotate synchronously and in the same direction, the wheel hub to be detected is placed between the two supporting rollers, the two supporting rollers support the wheel hub from the bottom and drive the wheel hub to rotate relatively; the wheel hub stabilizing mechanism is fixedly arranged on the operation table, and the wheel hub stabilizing mechanism comprises a vertical lead screw module and a lifting limiting assembly, the vertical lead screw module is fixedly connected to the operation table, and the lifting limiting assembly is connected to the vertical lead screw module; the lifting limiting assembly can limit the top surface of the wheel hub, so that the wheel hub always maintains a state of rotating around its own axis. In the scheme, the two supporting rollers can bear the wheel hub and drive the wheel hub to rotate automatically, in order to ensure the stability of the wheel hub rotation, a wheel hub stabilizing mechanism is arranged above the wheel hub, the wheel hub stabilizing mechanism limits the top of the wheel hub, three points contact with the outer periphery of the wheel hub, drive the wheel hub to rotate, can ensure that the wheel hub does not deviate during rotation, and the rotation is stable, which is beneficial to the operator to observe the state of the wheel hub.

[0005] Further, the support roller comprises a roller body, an axle and a bearing seat, the roller body is connected to the axle, the axle is connected to the bearing seat at both ends, rolling bearings are arranged at the connecting positions, the two bearing seats are fixedly installed on the operation table, the axle extends backward through the bearing seat at one end, and a belt pulley is fixedly connected to the end of the axle extending backward.

[0006] Further, the roller driving assembly comprises a motor support, a servo motor and a belt, the motor support is fixedly connected below the operation table, the servo motor is fixedly installed on the motor support, a rectangular notch is arranged on the operation table opposite to the two belt pulleys, the servo motor and the two belt pulleys are connected through the belt, and the belt passes through the rectangular notch. The servo motor and the belt can drive the two roller bodies to rotate simultaneously, so that the purpose of synchronous rotation in the same direction is achieved.

[0007] Further, the vertical screw module comprises a support, a vertical slide rail, a screw and a motor, the support is vertically connected to the operation table, a horizontal plate is connected to the top of the support, the vertical slide rail is fixedly arranged in the support, the motor is installed on the horizontal plate, the vertically arranged screw is connected to the motor at the top, and the tail end of the lifting limiting assembly is connected to the screw and the vertical slide rail, the motor drives the lifting limiting assembly to move up and down. The vertical screw module can drive the lifting limiting assembly to move up and down, the position of the lifting limiting assembly can be freely adjusted according to the diameter of the hub, and the lifting limiting assembly is suitable for rotation operation of hubs of various sizes.

[0008] Further, the lifting limiting assembly comprises a horizontal support plate, a spring and a roller frame, the tail end of the horizontal support plate is connected to the screw and the vertical slide rail, the bottom surface of the front section of the horizontal support plate is connected to the spring and the roller frame, the roller frame is parallel to the horizontal support plate and is movably connected, the upper end of the spring is connected to the bottom surface of the horizontal support plate, and the lower end of the spring is connected to the roller frame, the roller frame is located directly above the middle of the two support rollers, the roller frame can be elastically pressed on the top surface of the hub to be measured, the hub is limited, and the roller frame rotates relatively with the rotation of the hub.

[0009] Further, the roller frame comprises a frame body, a guide rod and a driven roller, two mounting grooves are arranged on the frame body, the two driven rollers are rotatably arranged in the mounting grooves, the frame body is connected to the spring at the middle, the guide rods are connected to the two sides of the frame body, the horizontal support plate is provided with a circular hole corresponding to the guide rod, the guide rod is slidably connected in the circular hole, the head of the guide rod is blocked on the horizontal support plate, and the bottom of the guide rod is fixedly connected to the frame body.

[0010] In the above scheme, the spring enables the two driven rollers to be in elastic rolling contact with the outer circumferential surface of the hub, when deformation occurs on the hub or foreign matter exists on the outer circumferential surface of the hub, the driven rollers can be elastically adjusted to avoid hard friction damage, and the guide rod enables the roller frame to be kept horizontal, thereby increasing the contact stability of the driven rollers.

[0011] Further, the two driven rollers and the two supporting rollers are arranged in parallel, and the two driven rollers and the two supporting rollers rotate in the same direction.

[0012] Further, the outer surface of the roller body is provided with a concave-convex roller trace.

[0013] Further, the operating table is provided with a distance detection sensor, which is arranged between the two supporting rollers and emits laser upward to detect the distance from the periphery of the wheel hub in real time.

[0014] The device has the following advantages: 1) the two supporting rollers are arranged on the operating table, and the supporting rollers can support and drive the wheel hub to rotate automatically, the two supporting rollers are driven to rotate by the same servo motor, and can rotate in the same direction and at the same speed, so that the wheel hub can rotate stably and uniformly, and the worker can check the state of the wheel hub; 2) the wheel hub stabilizing mechanism is arranged above the wheel hub to be detected, and the roller frame provided with the two driven rollers can be elastically abutted against the top surface of the wheel hub to limit the top of the wheel hub, so that the wheel hub can rotate uniformly around the fixed position of the shaft, and the stability of rotation is enhanced; 3) the distance detection sensor is arranged on the operating table, the linear distance of the periphery of the wheel hub can be monitored in real time, the deformation of the wheel hub and the degree of deformation can be judged through the change of data, and the subsequent repair of the wheel hub is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure of the wheel hub automatic rotating detection device of the utility model Figure 1 ;

[0016] Figure 2 It is a three-dimensional structure of the wheel hub automatic rotating detection device of the utility model Figure 2 ;

[0017] Figure 3 It is a connection diagram of the supporting roller and the roller driving assembly in the utility model;

[0018] Figure 4 It is a structure diagram of the wheel hub stabilizing mechanism in the utility model;

[0019] The figure is marked as: operation platform 1, distance detection sensor 11, rectangular notch 12, wheel hub 2, supporting roller 3, roller body 31, wheel shaft 32, bearing seat 33, rolling bearing 34, belt pulley 35, roller drive assembly 4, motor bracket 41, servo motor 42, belt 43, wheel hub stabilizing mechanism 5, vertical screw module 6, bracket 61, vertical slide rail 62, screw 63, motor 64, lifting limiting assembly 7, horizontal support plate 71, spring 72, rolling frame 73, frame body 731, guide rod 732, driven roller 733, mounting groove 734. DETAILED DESCRIPTION

[0020] The application will be further described below in conjunction with the drawings and examples.

[0021] As Figures 1-4 shown is a kind of wheel hub automatic rotation detection device of the utility model, including operation platform 1, wheel hub 2, supporting roller 3, roller drive assembly 4 and wheel hub stabilizing mechanism 5, operation platform 1 is equipped with two mutually parallel supporting roller 3, roller drive assembly 4 is connected with two supporting roller 3, roller drive assembly 4 can drive two supporting roller 3 synchronous same direction rotation, the wheel hub 2 to be detected is placed between two supporting roller 3, two supporting roller 3 from bottom hold wheel hub 2, drive wheel hub 2 relative rotation;Wheel hub stabilizing mechanism 5 is fixedly arranged on operation platform 1, wheel hub stabilizing mechanism 5 includes vertical screw module 6 and lifting limiting assembly 7, vertical screw module 6 is fixedly connected on operation platform 1, lifting limiting assembly 7 is connected on vertical screw module 6, lifting limiting assembly 7 can limit the top surface of wheel hub, so that wheel hub always keeps the state of rotating around its axis.The operation platform 1 is equipped with distance detection sensor 11, distance detection sensor 11 is arranged in the middle of two supporting roller 3, distance detection sensor 11 sends laser upwards, and the interval with the periphery of wheel hub 2 is detected in real time.

[0022] The supporting roller 3 includes roller body 31, wheel shaft 32 and bearing seat 33, roller body 31 is connected on wheel shaft 32, the outer surface of roller body 31 is equipped with concave-convex roll mark.Wheel shaft 32 is connected on bearing seat 33 at both ends, and rolling bearing 34 is equipped at the connecting portion, two bearing seats 33 are fixedly installed on operation platform, and wheel shaft 32 is stretched out backwards at one end through bearing seat 33, and belt pulley 35 is fixedly connected on the end of wheel shaft 32 stretched out backwards.The roller drive assembly 4 includes motor bracket 41, servo motor 42 and belt 43, motor bracket 41 is fixedly connected below operation platform 1, servo motor 42 is fixedly installed on motor bracket 41, rectangular notch 12 is opened on operation platform 1 opposite two belt pulleys 35, servo motor 42 and two belt pulleys 35 are connected through belt 43, and belt 43 passes through rectangular notch 12.Through servo motor 42 and belt 43, two roller bodies 31 can be driven to rotate simultaneously, so that the purpose of synchronous rotation in the same direction is realized.

[0023] By setting two supporting rollers 3 on the operation table 1, the supporting rollers 3 can support and drive the hub 2 to rotate automatically, the two supporting rollers 3 are driven to rotate by the same servo motor 42, can keep the same direction and the same speed rotation, make the hub 2 can keep stable and uniform rotation, facilitate the worker to check the hub state. The vertical screw module 6 includes a support 61, a vertical slide rail 62, a screw 63 and a motor 64, the support 61 is vertically connected on the operation table 1, the top of the support 61 is connected with a horizontal plate, the vertical slide rail 62 is fixedly arranged in the inner side of the support 61, the motor 64 is installed on the horizontal plate, the top of the vertically arranged screw 63 is connected with the motor 64, the tail end of the lifting limiting assembly 7 is connected with the screw 63 and the vertical slide rail 62 at the same time, and the motor 64 drives the lifting limiting assembly 7 to move up and down. The vertical screw module 6 can drive the lifting limiting assembly 7 to move up and down, and the position of the lifting limiting assembly can be freely adjusted according to the diameter of the hub 2, which is suitable for rotating operation of hubs of various sizes.

[0024] The lifting limiting assembly 7 includes a horizontal support plate 71, a spring 72 and a roller frame 73, the tail end of the horizontal support plate 71 is connected on the screw 63 and the vertical slide rail 62, the bottom surface of the front section of the horizontal support plate 71 is connected with the spring 72 and the roller frame 73, the roller frame 73 is parallel to and movably connected with the horizontal support plate 71, the upper end of the spring 72 is connected with the bottom surface of the horizontal support plate 71, and the lower end is connected with the roller frame 73, the roller frame 73 is located directly above the middle of the two supporting rollers 3, and can be elastically pressed on the top surface of the hub to be measured to limit the hub 2, and the roller frame 73 relatively rotates with the hub. The roller frame 73 includes a frame body 731, a guide rod 732 and a driven roller 733, two mounting grooves 734 are formed in the frame body 731, and the two driven rollers 733 are rotatably arranged in the mounting grooves 734, the middle of the frame body 731 is connected with the spring 72, the guide rods 732 are connected on both sides of the frame body 731, the horizontal support plate 71 is provided with a circular hole corresponding to the guide rod 731, the guide rod 732 is slidably connected in the circular hole, the head of the guide rod 732 is blocked on the horizontal support plate 71, and the bottom of the guide rod 732 is fixedly connected on the frame body 731. The two driven rollers 733 and the two supporting rollers 3 are parallel, and the rotating directions of the two driven rollers 733 and the two supporting rollers 3 are the same. The hub stabilizing mechanism 5 is arranged above the hub to be measured, and under the support of the horizontal support plate 71, the roller frame provided with the two driven rollers 733 can be elastically abutted on the top surface of the hub to limit the top of the hub 2, prevent the hub from deviating or losing the center of gravity during rotation, make the hub keep rotating at a fixed position around the axis at a constant speed, and enhance the stability of rotation.

[0025] The action process of the utility model discloses: place the hub 2 to be measured on two support rollers 3, the hub 2 is placed to the middle section of two support rollers 3, the motor 64 on vertical screw module 6 drives horizontal support plate 71 to descend vertically, make two driven rollers 733 on rolling frame 73 rest on the top surface of hub 2, and spring 72 is in compression state.Servo motor 42 starts, and servo motor 42 drives two roller bodies 31 to rotate simultaneously through belt 43, and roller body 31 drives hub 2 to rotate relatively, and hub 2 drives two driven rollers 733 in the upper to rotate, and hub 2 keeps rotating stably around the axis, and the worker checks hub 2, and hub bottom surface rotates through distance detection inductor 11 during the rotation of hub, and distance detection inductor 11 monitors the linear distance of hub outer periphery in real time, judges whether hub 2 is deformed and the degree of deformation through the change of data, and it is convenient for subsequent repair of hub.

[0026] The above is only a few preferred embodiments of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes and replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be the protection scope of the claims.

Claims

1. A wheel hub automatic rotation detection device, characterized by: The wheel hub testing device comprises an operation table, a wheel hub, supporting rollers, a roller driving assembly and a wheel hub stabilizing mechanism. The wheel hub stabilizing mechanism is fixedly arranged on the operation table and comprises a vertical screw module and a lifting limiting assembly.

2. The automatic wheel-hub rotation detection device of claim 1, wherein: The supporting rollers comprise roller bodies, shafts and bearing seats.

3. The wheel hub automatic rotation detection device of claim 2, wherein: The roller driving assembly comprises a motor support, a servo motor and a belt.

4. The wheel-hub automatic rotation detection device of claim 3, wherein: The vertical screw module comprises a support, vertical sliding rails, a screw and a motor.

5. The wheel-hub automatic rotation detection device of claim 4, wherein: The lifting limiting assembly comprises a horizontal support plate, a spring and a roller frame.

6. The wheel-hub automatic rotation detection device of claim 5, wherein: The roller frame comprises a frame body, guide rods and driven rollers.

7. The wheel-hub automatic rotation detection device of claim 6, wherein: The two driven rollers and the two supporting rollers are arranged in parallel and rotate in the same direction.

8. The wheel-hub automatic rotation detection device of claim 7, wherein: The outer surface of the roller body is provided with a concave-convex roller pattern.

9. The wheel-hub automatic rotation detection apparatus of claim 8, wherein: A distance detection sensor is arranged on the operation table and arranged between the two supporting rollers. The distance detection sensor emits laser upward to detect the distance from the wheel hub.

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