Device for detecting roundness of inner ring of tapered roller bearing

Abstract

The invention provides a tapered roller bearing inner ring roundness detection device, which relates to the field of bearing inner ring detection and comprises a first arc-shaped clamping plate, a second arc-shaped clamping plate, a square block and a detection rod, a transverse adjusting screw rod is rotationally clamped in the middle of the outer arc end of the first arc-shaped clamping plate; the outer arc end of the second arc-shaped clamping plate is fixedly connected with a U-shaped guide frame B, and the U-shaped guide frame B is further sleeved with a spring A; the telescopic end of the electric push rod penetrates through the inverted-U-shaped supporting frame to be connected with the top side of the adjusting frame, the square block is fixed to the bottom side end of the connecting shaft, two sets of sliding resistors are installed in the detection cavity, the number of the detection rods is two, and the two sets of detection rods are sleeved with springs B respectively and slidably inserted into the square block in a penetrating mode. The roundness detection device can detect the roundness of the inner rings of the tapered roller bearings of different sizes, gives an alarm through the alarm when detecting that the roundness of the inner rings changes, and solves the problem that the inner rings of the tapered roller bearings of only one size can be dealt with.

Description

Technical Field

[0001] The invention relates to the technical field of bearing inner ring detection, in particular to a device for detecting the roundness of a tapered roller bearing inner ring. Background Art

[0002] Tapered roller bearings are separable bearings, and both the inner and outer rings of the bearings have tapered raceways. Since the inner ring of the tapered roller bearing is closely matched with the shaft and is a support for mechanical transmission and load bearing, its dimensional error and inner ring roundness error will have a significant impact on the performance and service life of the entire bearing product.

[0003] For example, the patent with application number: CN201710451393.1 discloses a device for detecting the roundness of the inner ring of a tapered roller bearing, which belongs to the technical field of shaft component detection equipment. It includes a detection workbench, on which a left guide rail of the workbench is fixed, and a right guide rail of the workbench is fixed on the right side; the inner ring of the tapered roller bearing clamps the rotary mechanism and is supported on the detection workbench; the column forward and backward displacement mechanism is arranged on the detection workbench at a position corresponding to the right side of the right guide rail of the workbench; the transmission box left and right displacement mechanism, in a state of being vacated above the detection workbench, slides with the left guide rail of the workbench and the right guide rail of the workbench at the same time, and is in transmission cooperation with the column forward and backward displacement mechanism; the transmission box, which is arranged on the transmission box left and right displacement mechanism in a left-right movable manner; the lifting rod, the upper part of which is in transmission cooperation with the transmission box; the detection head, which is fixed to the lower part of the lifting rod. Automatic detection replaces manual detection, reduces the intensity of work, improves detection efficiency and ensures detection quality.

[0004] At present, the roundness detection of the inner ring of the tapered roller bearing can only deal with the inner ring of the tapered roller bearing of one size, and when the roundness changes during the detection process, it is impossible to issue an alarm notification in time. Summary of the invention

[0005] To solve the problems in the background technology, the present invention provides a tapered roller bearing inner ring roundness detection device, which can detect the roundness of the inner rings of tapered roller bearings of different sizes, and when a change in the inner ring roundness is detected, an alarm is sounded through an alarm and the change is recorded.

[0006] The tapered roller bearing inner ring roundness detection device provided by the present invention specifically comprises: a base, a first arc-shaped clamping plate, a second arc-shaped clamping plate, an electric push rod, an adjustment frame, a stepping motor, a connecting shaft, a square block and a detection rod; An inverted U-shaped support frame is fixed to the top side end of the base; The outer arc end of the first arc-shaped clamping plate is fixedly connected to a U-shaped guide frame A, and the U-shaped guide frame A is slidably inserted into one end side of the base. A transverse adjustment screw A is also rotatably mounted in the middle of the outer arc end of the first arc-shaped clamping plate, and the transverse adjustment screw A passes through a ring in the middle of the outer end of the U-shaped guide frame A and is threadedly engaged with a threaded barrel embedded in the base; A transverse adjustment screw B is also rotatably mounted in the middle of the outer arc end of the second arc-shaped clamping plate, and the transverse adjustment screw B passes through a ring in the middle of the outer end of the U-shaped guide frame B and is threadedly engaged with a threaded barrel embedded in the base; The electric push rod is fixed to the top of the inverted U-shaped support frame, and the telescopic end of the electric push rod passes through the inverted U-shaped support frame and is connected to the top side of the adjustment frame. The top two sides of the adjustment frame are also connected to U-shaped guide frames C, and the U-shaped guide frames C are slidably inserted on the inverted U-shaped support frame; The stepper motor is fixed in the adjustment frame, the coupling shaft is rotatably mounted on the adjustment frame through two sets of circular plates, and the motor shaft of the stepper motor is connected to the coupling shaft; A detection cavity is provided on one side of the square block and is fixed to the bottom side end of the connecting shaft. Two sets of sliding resistors are installed in the detection cavity. A plug is also fixed on the bottom side of the square block, and the plug is opposite to the positioning socket at the center position on the base. The detection rods are provided with two groups, and the two groups of detection rods are respectively fitted with springs B and are slidably inserted on the square blocks.

[0007] Furthermore, two sets of scales are inlaid on the base, and the scales of the scales extend from the middle of the base to both sides respectively. The first arc-shaped clamping plate and the second arc-shaped clamping plate are also provided with triangular structures at both ends of the bottom side, and the triangular structures point to the scales respectively.

[0008] Furthermore, the second arc-shaped clamping plate is opposite to the first arc-shaped clamping plate, and a sliding groove is also provided on the second arc-shaped clamping plate, and convex strips are respectively provided at both ends of the inner side of the sliding groove, and a group of square sliders are slidably mounted through the convex strips, and a vertical adjustment screw is inserted through one end of the outer side of the square slider through threaded engagement, and a vertical guide rod is slidably inserted through the other end, and the upper and lower ends of the vertical adjustment screw and the vertical guide rod are respectively connected to the upper and lower ends of the second arc-shaped clamping plate, and a horizontal connecting screw is also inserted in the middle of the square slider, and the connecting screw passes through the inner and outer sides of the square slider and is respectively screwed with locking nuts, and the inner end of the connecting screw is also fixedly connected to a baffle frame.

[0009] Furthermore, the upper and lower ends of the baffle frame on the side facing the first arc-shaped clamping plate are respectively an upward inclined structure and a downward inclined structure.

[0010] Furthermore, one end of the two groups of detection rods is respectively connected to a ball, and the other end is inserted into the detection cavity and is respectively connected to the sliding piece of the sliding resistor through a fixed connecting rod. The sliding piece of the sliding resistor and the outer end of the sliding resistor are respectively connected to the controller on the square block through wires.

[0011] Furthermore, the controller is also provided with a battery, a resistance value detection module, a recording module and a display module.

[0012] Furthermore, an alarm is fixed on the square block, and the alarm is electrically connected to the controller.

[0013] The tapered roller bearing inner ring roundness detection device provided by the present invention has the following beneficial effects: The invention can detect the roundness of the inner ring of the tapered roller bearing of different sizes, and when it is detected that the roundness of the inner ring changes, an alarm is given through an alarm device and the change is recorded.

[0014] In addition, by setting the first arc clamping plate and the second arc clamping plate and using the scale embedded in the base, the position of the first arc clamping plate is adjusted by rotating the lateral adjustment screw according to the size of the inner rings of the same batch of tapered roller bearings, so that when the inner ring of the tapered roller bearing is clamped between the first arc clamping plate and the second arc clamping plate, the number of marks on the scale pointed to by the triangular structures on the first arc clamping plate and the second arc clamping plate is the same, thereby making the center of the inner ring of the tapered roller bearing and the positioning hole on the same vertical line, thereby facilitating the detection of the roundness of the inner rings of tapered roller bearings of different sizes.

[0015] In addition, by setting up a stop frame, the vertical adjustment screw can be rotated according to the size of the inner rings of the same batch of tapered roller bearings, and the position of the stop frame can be adjusted through two sets of locking nuts. When the inner ring of the tapered roller bearing is clamped between the first arc-shaped clamping plate and the second arc-shaped clamping plate, the bottom side of the stop frame is attached to the top surface of the inner ring of the tapered roller bearing, and the inner vertical end of the stop frame is located on the inner side of the inner ring of the tapered roller bearing, so that the detection rod can slide smoothly to the inner side of the inner ring of the tapered roller bearing under the action of the stop frame during the downward movement of the detection rod.

[0016] In addition, by setting up two groups of detection rods and two groups of sliding resistors, the ball at the outer end of the detection rod is attached to the inner wall of the inner ring of the tapered roller bearing under the action of the spring B. When the stepper motor drives the connecting shaft and the square block to rotate one circle, the two groups of detection rods synchronously follow and rotate one circle. When the two groups of detection rods move, they will synchronously drive the sliding piece of the sliding resistor to move, thereby changing the resistance value of the sliding resistor, which is detected by the resistance value detection module in the controller, recorded by the recording module, displayed on the display module, and finally an alarm is sounded through the alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 A schematic diagram showing the overall structure of the present invention; Figure 2 The present invention shows Figure 1 The enlarged structural diagram at A in the middle; Figure 3 The present invention shows Figure 1 The schematic diagram of the structure is a side view on the middle right side; Figure 4 The present invention shows Figure 3 The enlarged structural diagram at B in the middle; Figure 5 The present invention shows Figure 1 The front structural diagram after the electric push rod drives the square block to lift upward; Figure 6 The present invention shows Figure 5 The enlarged structural diagram at C in the middle; Figure 7 The present invention shows Figure 5 Schematic diagram of the structure after the inner ring of the tapered roller bearing is removed; Figure 8 The present invention shows Figure 7 Schematic diagram of the structure enlarged at point D in the middle.

[0020] Reference numerals list 1. Base; 101. Scale; 102. Threaded tube; 103. Inverted U-shaped support; 104. Positioning jack; 2. First arc-shaped clamping plate; 201. U-shaped guide frame A; 202. Horizontal adjustment screw A; 3. Second arc-shaped clamping plate; 301. U-shaped guide frame B; 302. Slide; 3021. Raised strip; 303. Square slider; 3031. Vertical adjustment screw; 3032. Vertical guide rod; 304. Stop frame; 3041, connecting screw; 3042, locking nut; 305, lateral adjustment screw B; 4, electric push rod; 5, adjustment frame; 501, U-shaped guide frame C; 6, stepping motor; 601, connecting shaft; 7, square block; 701, detection chamber; 702, plug; 8, detection rod; 801, ball; 802, spring; 9, sliding resistor; 901, fixed connecting rod; 10, controller; 11, alarm. DETAILED DESCRIPTION

[0021] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0022] Example 1: Please refer to Figures 1 to 8 : The present invention proposes a device for detecting the roundness of the inner ring of a tapered roller bearing, comprising: a base 1, a first arc-shaped clamping plate 2, a second arc-shaped clamping plate 3, an electric push rod 4, an adjustment frame 5, a stepping motor 6, a connecting shaft 601, a square block 7 and a detection rod 8; An inverted U-shaped support frame 103 is fixed to the top side end of the base 1; The outer arc end of the first arc clamping plate 2 is fixedly connected with a U-shaped guide frame A201, and the U-shaped guide frame A201 is slidably inserted into one end side of the base 1. A lateral adjustment screw A202 is also rotatably mounted in the middle of the outer arc end of the first arc clamping plate 2, and the lateral adjustment screw A202 passes through a ring in the middle of the outer end of the U-shaped guide frame A201 and is threadedly engaged with a threaded barrel 102 embedded on the base 1; A transverse adjustment screw B305 is rotatably mounted in the middle of the outer arc end of the second arc-shaped clamping plate 3, and the transverse adjustment screw B305 passes through a ring in the middle of the outer end of the U-shaped guide frame B301 and is threadedly engaged with a threaded cylinder 102 embedded on the base 1; The electric push rod 4 is fixed to the top of the inverted U-shaped support frame 103, and the telescopic end of the electric push rod 4 passes through the inverted U-shaped support frame 103 and is connected to the top side of the adjustment frame 5. The top sides of the adjustment frame 5 are also connected to U-shaped guide frames C501, and the U-shaped guide frames C501 are slidably inserted on the inverted U-shaped support frame 103; The stepper motor 6 is fixed in the adjustment frame 5, and the connecting shaft 601 is rotatably mounted on the adjustment frame 5 through two sets of circular plates, and the motor shaft of the stepper motor 6 is connected to the connecting shaft 601; A detection cavity 701 is provided on one side of the square block 7 and is fixed to the bottom side end of the connecting shaft 601. Two sets of sliding resistors 9 are installed in the detection cavity 701. A plug 702 is also fixed to the bottom side of the square block 7, and the plug 702 is opposite to the positioning socket 104 at the center position on the base 1. There are two groups of detection rods 8, and the two groups of detection rods 8 are respectively fitted with springs B802 and slidably inserted on the square block 7.

[0023] In the embodiment of the present invention, Figure 1 and Figure 8As shown, two sets of scales 101 are inlaid on the base 1, and the scales of the scales 101 extend from the middle of the base 1 to both sides respectively. The bottom ends of the first arc-shaped clamping plate 2 and the second arc-shaped clamping plate 3 are also provided with triangular structures, and the triangular structures point to the scales 101 respectively. According to the size of the inner rings of the same batch of tapered roller bearings, the positions of the first arc-shaped clamping plate 2 and the second arc-shaped clamping plate 3 are adjusted by rotating the transverse adjustment screw A202 and the transverse adjustment screw B305, so that when the inner ring of the tapered roller bearing is clamped between the first arc-shaped clamping plate 2 and the second arc-shaped clamping plate 3, the number of marks on the scale 101 pointed to by the triangular structures on the first arc-shaped clamping plate 2 and the second arc-shaped clamping plate 3 is the same, so that the center of the inner ring of the tapered roller bearing and the positioning hole 104 are on the same vertical line.

[0024] In the embodiment of the present invention, Figure 2 and Figure 4 As shown, the second arc-shaped clamping plate 3 is opposite to the first arc-shaped clamping plate 2, and a sliding groove 302 is further provided on the second arc-shaped clamping plate 3, and convex strips 3021 are respectively provided at both ends of the inner side of the sliding groove 302, and a group of square sliders 303 are slidably mounted through the convex strips 3021, and a vertical adjustment screw 3031 is inserted through one end of the outer side of the square slider 303 through threaded engagement, and a vertical guide rod 3032 is slidably inserted through the other end, and the upper and lower ends of the vertical adjustment screw 3031 and the vertical guide rod 3032 are respectively connected to the upper and lower ends of the second arc-shaped clamping plate 3, and a horizontal connecting screw 3041 is also inserted in the middle of the square slider 303, and the connecting screw 3041 passes through the inner and outer sides of the square slider 303 and is respectively screwed with locking nuts 3042, and the connecting screw 304 The inner end of the retaining frame 304 is also fixedly connected to the inner end of the retaining frame 304. The upper and lower ends of the retaining frame 304 facing the first arc-shaped clamping plate 2 are respectively inclined upward and inclined downward. The position of the retaining frame 304 is adjusted by rotating the vertical adjustment screw 3031 and using two sets of locking nuts 3042. When the inner ring of the tapered roller bearing is clamped between the first arc-shaped clamping plate 2 and the second arc-shaped clamping plate 3, the bottom side of the retaining frame 304 is attached to the top surface of the inner ring of the tapered roller bearing, and the inner vertical end of the retaining frame 304 is located on the inner side of the inner ring of the tapered roller bearing. The adjusting frame 5 and the square block 7 are driven downward by the electric push rod 4, so that the ball of the detection rod 8 enters the inner ring of the tapered roller bearing under the action of the retaining frame 304, and is attached to the inner wall under the action of the spring B802.

[0025] In the embodiment of the present invention, Figure 6As shown, one end of the two groups of detection rods 8 is respectively connected to a ball 801, and the other end is inserted into the detection cavity 701, and is respectively connected to the slider of the sliding resistor 9 through a fixed connecting rod 901, and the slider of the sliding resistor 9 and the outer end of the resistance of the sliding resistor 9 are respectively connected to the controller 10 on the square block 7 through wires. The controller 10 is also provided with a battery, a resistance value detection module, a recording module and a display module. An alarm 11 is also fixed on the square block 7, and the alarm 11 is electrically connected to the controller 10. In the process of driving the connecting shaft 601 and the square block 7 to rotate one circle by the stepper motor 6, when the two groups of detection rods 8 move, the slider of the sliding resistor 9 will be synchronously driven to move, and the resistance value of the sliding resistor 9 will be changed, so that it will be detected by the resistance value detection module in the controller 10, recorded by the recording module, displayed on the display module, and finally an alarm will be sounded through the alarm 11.

[0026] Specific usage and function of this embodiment: In the present invention, the tapered roller bearing is placed between the first arc clamping plate 2 and the second arc clamping plate 3, and the lateral adjustment screw A202 and the lateral adjustment screw B305 are rotated to adjust the positions of the first arc clamping plate 2 and the second arc clamping plate 3, so that when the inner ring of the tapered roller bearing is clamped between the first arc clamping plate 2 and the second arc clamping plate 3, the number of marks on the triangular structure pointing to the scale 101 on the first arc clamping plate 2 and the second arc clamping plate 3 is the same, so that the center of the inner ring of the tapered roller bearing and the positioning socket 104 are on the same vertical line; Then, the vertical adjustment screw 3031 is rotated, and the position of the stop frame 304 is adjusted through two sets of locking nuts 3042, so that when the inner ring of the tapered roller bearing is clamped between the first arc-shaped clamping plate 2 and the second arc-shaped clamping plate 3, the bottom side of the stop frame 304 is attached to the top surface of the inner ring of the tapered roller bearing, and the inner vertical end of the stop frame 304 is located on the inner side of the inner ring of the tapered roller bearing; Then, the electric push rod 4 drives the adjustment frame 5 and the square block 7 to move downward, so that the ball of the detection rod 8 enters the inner ring of the tapered roller bearing under the action of the stop frame 304, and sticks to the inner wall under the action of the spring B802. After the plug 702 is inserted into the positioning socket 104, the electric push rod 4 stops moving, and the stepping motor 6 drives the connecting shaft 601 and the square block 7 to rotate one circle. In this process, when the two sets of detection rods 8 move, they will synchronously drive the sliding piece of the sliding resistor 9 to move, changing the resistance value of the sliding resistor 9, so that it is detected by the resistance value detection module in the controller 10, recorded by the recording module, displayed on the display module, and finally an alarm is sounded through the alarm 11; Then, the electric push rod 4 drives the square block and the detection rod 8 to move upward out of the inner ring of the tapered roller bearing, so as to detect the roundness of the inner ring of the next group of tapered roller bearings.

[0027] In this article, there are a few points to note: 1. The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention, and other structures can refer to the general design.

[0028] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0029] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Tapered roller bearing inner ring roundness detection device, including: A base (1), a first arc-shaped clamping plate (2), a second arc-shaped clamping plate (3), an electric push rod (4), an adjustment frame (5), a stepping motor (6), a connecting shaft (601), a square block (7) and a detection rod (8); An inverted U-shaped support frame (103) is fixed to the top side end of the base (1); the feature is that: The outer arc end of the first arc-shaped clamping plate (2) is fixedly connected to a U-shaped guide frame A (201), and the U-shaped guide frame A (201) is slidably inserted into one end side of the base (1); The outer arc end of the second arc-shaped clamping plate (3) is fixedly connected to a U-shaped guide frame B (301); The electric push rod (4) is fixed to the top end of the inverted U-shaped support frame (103), and the telescopic end of the electric push rod (4) passes through the inverted U-shaped support frame (103) and is connected to the top side of the adjustment frame (5); The stepper motor (6) is fixed in the adjustment frame (5), the connecting shaft (601) is rotatably mounted on the adjustment frame (5) via two sets of circular plates, and the motor shaft of the stepper motor (6) is connected to the connecting shaft (601); A detection cavity (701) is provided on one side of the square block (7) and is fixed to the bottom side end of the connecting shaft (601), and two sets of sliding resistors (9) are installed in the detection cavity (701); The detection rods (8) are provided in two groups, and the two groups of detection rods (8) are respectively fitted with springs B (802) and are slidably inserted on the square blocks (7).

2. The tapered roller bearing inner ring roundness detection device according to claim 1, characterized in that: Two sets of scales (101) are also inlaid on the base (1), and the scales of the scales (101) extend from the middle of the base (1) to both sides respectively, and triangular structures are also provided at both ends of the bottom sides of the first arc-shaped clamping plate (2) and the second arc-shaped clamping plate (3), and the triangular structures point to the scales (101) respectively.

3. The tapered roller bearing inner ring roundness detection device according to claim 1, characterized in that: A transverse adjustment screw A (202) is rotatably mounted in the middle of the outer arc end of the first arc-shaped clamping plate (2), and the transverse adjustment screw A (202) passes through a ring in the middle of the outer end of the U-shaped guide frame A (201) and is threadedly engaged with a threaded cylinder (102) embedded in the base (1).

4. The tapered roller bearing inner ring roundness detection device according to claim 1, characterized in that: A transverse adjustment screw B (305) is rotatably mounted in the middle of the outer arc end of the second arc-shaped clamping plate (3), and the transverse adjustment screw B (305) passes through a ring in the middle of the outer end of the U-shaped guide frame B (301) and is threadedly engaged with a threaded cylinder (102) embedded in the base (1).

5. The tapered roller bearing inner ring roundness detection device according to claim 1, characterized in that: The second arc-shaped clamping plate (3) is opposite to the first arc-shaped clamping plate (2), and the second arc-shaped clamping plate (3) is also provided with a slide groove (302), and the inner ends of the slide groove (302) are respectively provided with convex strips (3021), and a group of square sliders (303) are slidably mounted through the convex strips (3021), and one end of the outer side of the square slider (303) is interspersed with a vertical adjustment screw (3031) through threaded engagement, and the other end is slidably interspersed with a vertical guide rod (3031). 2), and the upper and lower ends of the vertical adjustment screw (3031) and the vertical guide rod (3032) are respectively connected to the upper and lower ends of the second arc-shaped clamping plate (3), and a horizontal connecting screw (3041) is inserted in the middle of the square slider (303), and the connecting screw (3041) passes through the inner and outer sides of the square slider (303) and is respectively screwed with locking nuts (3042), and the inner end of the connecting screw (3041) is also fixedly connected to the stop frame (304).

6. The tapered roller bearing inner ring roundness detection device according to claim 5, characterized in that: The upper and lower ends of the baffle frame (304) on the side facing the first arc-shaped clamping plate (2) are respectively an upwardly inclined structure and a downwardly inclined structure.

7. The tapered roller bearing inner ring roundness detection device according to claim 1, characterized in that: Both sides of the top of the adjustment frame (5) are also connected to U-shaped guide frames C (501), and the U-shaped guide frames C (501) are slidably inserted on the inverted U-shaped support frame (103).

8. The tapered roller bearing inner ring roundness detection device according to claim 1, characterized in that: One end of the two groups of detection rods (8) is respectively connected to a sphere (801), and the other end is inserted into the detection cavity (701) and is respectively connected to the sliding pieces of the sliding resistor (9) through a fixed connecting rod (901). The sliding pieces of the sliding resistor (9) and the outer ends of the sliding resistor (9) are respectively connected to the controller (10) on the square block (7) through a wire. The controller (10) is also provided with a storage battery, a resistance value detection module, a recording module and a display module.

9. The tapered roller bearing inner ring roundness detection device according to claim 8, characterized in that: A plug (702) is also fixed on the bottom side of the square block (7), and the plug (702) is opposite to a positioning socket (104) located at a central position on the base (1). An alarm (11) is also fixed on the square block (7), and the alarm (11) is electrically connected to the controller (10).

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