CN215573765U - Dynamic detection device for rotation of locomotive bearing - Google Patents
Dynamic detection device for rotation of locomotive bearing Download PDFInfo
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- CN215573765U CN215573765U CN202121221548.0U CN202121221548U CN215573765U CN 215573765 U CN215573765 U CN 215573765U CN 202121221548 U CN202121221548 U CN 202121221548U CN 215573765 U CN215573765 U CN 215573765U
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Abstract
The utility model provides a dynamic detection device for rotation of a locomotive bearing, which comprises a rack, a driving motor arranged on the rack, a secondary gearbox and a wheel hub, wherein the input end and the output end of the secondary gearbox are respectively connected with the driving motor and an output shaft, the output shaft is connected with a torque sensor through a first coupler, the end part of the torque sensor is connected with the wheel hub through a second coupler, a spindle head is inserted into a conical cavity in the wheel hub, a detected bearing is sleeved on the periphery of the spindle head, the output end of a first oil cylinder is connected with a pull rod, the end part of the pull rod penetrates through the center of the spindle head and is fixedly connected with the outer surface of the spindle head through a gasket, the side part of the gasket is pressed against the inner ring of the bearing, a temperature sensor connected with the detected bearing is arranged on the spindle head, and the torque sensor and the temperature sensor are connected with a PLC (programmable logic controller). The utility model can detect the temperature and the torque of the locomotive bearing in the rotation dynamic state in real time, and judge whether the detected bearing is damaged or not according to the temperature and the torque, the detection is quick, and the research and development period of the bearing is shortened.
Description
Technical Field
The utility model relates to the technical field of locomotive bearing detection, in particular to a dynamic detection device for rotation of a locomotive bearing.
Background
With the continuous development of scientific technology, the application of the rotating mechanism in various industrial fields is gradually widened. The bearing is used as an important part in the rotating mechanism, the precision and the service life of the bearing can influence the precision and the service life of the rotating mechanism, if the bearing cannot be found and maintained in time, unnecessary shutdown can be caused, the economic benefit of an enterprise is influenced, and safety accidents can be caused.
At present, the manufacturing quality detection of the locomotive bearing mainly comprises the detection of the geometric dimension of the bearing and the material inspection of the bearing, the fatigue service life of the bearing cannot be detected in a short time, generally, the bearing can only be used by actual loading, the quality condition of the bearing is analyzed according to the damage condition of the bearing, the reason for quality problem is analyzed, the detection period is long, and the development and production time of the bearing are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a dynamic detection device for rotation of a locomotive bearing, which solves the problems that the fatigue service life of the bearing cannot be detected in a short time and the detection period is long in the prior art.
In order to solve the technical problems, the utility model adopts the technical scheme that: a dynamic detection device for the rotation of a locomotive bearing comprises a rack, a driving motor, a secondary gearbox, an output shaft, a hub, a spindle head and a first oil cylinder, wherein the driving motor, the secondary gearbox, the output shaft, the hub, the spindle head and the first oil cylinder are arranged on the rack, the input end and the output end of the secondary gearbox are respectively connected with the driving motor and the output shaft and used for changing the output transmission ratio, the output shaft is connected with a torque sensor through a first coupler, the end part of the torque sensor is connected with the hub through a second coupler, a conical cavity is arranged in the hub, the spindle head is inserted into the conical cavity and is sleeved with a bearing to be detected at the periphery of the spindle head, the outer end part of the spindle head is fixedly connected to the rack through a supporting seat, the first oil cylinder is fixedly arranged at the side part of the supporting seat, the output end part of the first oil cylinder penetrates through the center of the spindle head and is fixedly connected with the outer surface of the spindle head through a gasket, and the side part of the gasket is abutted against the inner ring of the bearing, the spindle nose is provided with a temperature sensor connected with the measured bearing, and the torque sensor and the temperature sensor are connected with the PLC and used for detecting whether the measured bearing is qualified or not.
Preferably, the two-stage transmission comprises a transmission housing, and a transmission shaft and an output shaft rotatably arranged in the transmission housing, wherein a first master gear and a second master gear are fixedly arranged in the circumferential direction of the transmission shaft, a first slave gear and a second slave gear are fixedly arranged in the circumferential direction of the output shaft, the first master gear and the first slave gear are meshed with each other or the second master gear and the second slave gear are meshed with each other, the end of the transmission shaft is connected with a driving motor, a piston rod is further arranged in the transmission housing, a clamping plate is fixedly arranged on the piston rod, the first slave gear or the second slave gear extends into the clamping plate from the edge of the gear, a second oil cylinder is fixedly arranged on the outer side of the transmission housing, and the output end of the second oil cylinder is connected with the piston rod and used for driving the clamping plate to move left and right.
Preferably, the bottom end of the clamping plate is provided with a sliding block part, a fixed rail is arranged inside the gearbox shell, and the sliding block part is in sliding connection with the fixed rail in a matched mode.
Preferably, the first driven gear has a cylindrical portion extending in the circumferential direction, the second driven gear is fixedly arranged on the cylindrical portion in the circumferential direction, guide grooves are formed in two opposite side faces of the first driven gear and the output shaft, and a bar-shaped block is arranged in each guide groove.
Preferably, the output end of the first oil cylinder is connected with an oil cylinder shaft, and the oil cylinder shaft is connected with the end part of the pull rod through a connecting sleeve.
Compared with the prior art, the utility model has the beneficial effects that: the pre-tightening force in the preset direction is applied to the bearing to be detected, the bearing to be detected rotates, the temperature and the torque of the bearing of the locomotive under the dynamic rotation state can be detected in real time, whether the bearing to be detected is damaged or not is judged according to the pre-tightening force, the detection is quick, the research and development period of the bearing is shortened, and the development cost is reduced; the two-stage gearbox is additionally arranged between the driving motor and the transmission shaft, the two-stage gearbox drives the clamping plate to move through the second oil cylinder to push the duplicate gear consisting of the first slave gear and the second slave gear, when the clamping plate slides leftwards, the first slave gear is meshed with the first master gear, the transmission ratio is small at the moment, and the rotating speed of the output shaft is high; when the clamping plate slides rightwards, the second driven gear is meshed with the second main gear, the transmission ratio is high, and the rotating speed of the output shaft is low. The quality detection of the bearing at high and low rotating speeds is realized through the two-stage gearbox, and the two-stage gearbox is compact in structure and small in occupied size.
Drawings
The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. In the drawings, like reference numerals are used to refer to like parts. Wherein:
FIG. 1 is a schematic structural diagram of a dynamic rolling stock bearing rotation detection apparatus according to an embodiment of the present invention;
FIG. 2 is a transverse cross-sectional view of a two-stage transmission according to an embodiment of the present invention;
FIG. 3 is a longitudinal cross-sectional view of the hub and stub shaft of an embodiment of the present invention.
Reference numbers in the figures: the device comprises a frame 1, a two-stage gearbox 2, a driving motor 3, a first oil cylinder 4, an output shaft 5, a first coupler 6, a torque sensor 7, a second coupler 8, a wheel hub 9, a shaft head 10, a second oil cylinder 11, a transmission shaft 12, a gearbox shell 13, a first master gear 14, a second master gear 15, a first slave gear 16, a second slave gear 17, a clamping plate 18, a fixed rail 19, a sliding block part 20, a piston rod 21, a supporting seat 22, an oil cylinder shaft 23, an end cover plate 24, a coupling sleeve 25, a pull rod 26, a washer 27, a bearing to be measured 28 and a temperature sensor 29.
Detailed Description
It is easily understood that according to the technical solution of the present invention, a person skilled in the art can propose various alternative structures and implementation ways without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
An embodiment according to the present invention is shown in connection with fig. 1. The utility model provides a locomotive bearing rotates dynamic detection device, includes frame 1 and sets up driving motor 3, secondary gearbox 2, output shaft 5, wheel hub 9, spindle nose 10 and the first hydro-cylinder 4 on frame 1, and 2 input ends of secondary gearbox link to each other with driving motor 3 and output shaft 5 respectively with the output shaft for change output drive ratio. The transmission ratio is the ratio of the rotating speed of the driving wheel to the rotating speed of the driven wheel, under the condition that the rotating speed of the driving wheel is constant, the transmission ratio is large, the rotating speed of the driven wheel is low, the transmission ratio is small, and the rotating speed of the driven wheel is high.
Referring to fig. 2, the two-stage transmission 2 includes a transmission housing 13, and a transmission shaft 12 and an output shaft 5 rotatably disposed inside the transmission housing 13, the transmission shaft 12 is circumferentially and fixedly provided with a first master gear 14 and a second master gear 15, the output shaft 5 is circumferentially and fixedly provided with a first slave gear 16 and a second slave gear 17, the first slave gear 16 has a cylindrical portion extending circumferentially, the second slave gear 17 is circumferentially and fixedly disposed on the cylindrical portion, two opposite side surfaces of the first slave gear 16 and the output shaft 5 are both provided with guide grooves (not shown), a bar block (not shown) is disposed in the guide grooves, and under the pushing action of an external force, a dual gear formed by the first slave gear 16 and the second slave gear 17 moves along the guide grooves. The first master gear 14 is meshed with the first slave gear 16 or the second master gear 15 is meshed with the second slave gear 17, the end of the transmission shaft 12 is connected with the driving motor 3, a piston rod 21 is further arranged inside the gearbox shell 13, a clamping plate 18 is fixedly arranged on the piston rod 21, a sliding block portion 20 is arranged at the bottom end of the clamping plate 18, a fixed rail 19 is arranged inside the gearbox shell 13, and the sliding block portion 20 is matched with the fixed rail 19 in a sliding connection mode.
The first driven gear 16 or the second driven gear 17 extends into the clamping plate 18 from the edge, the second oil cylinder 11 is fixedly arranged on the outer side of the gearbox shell 13, and the output end of the second oil cylinder 11 is connected with a piston rod 21 and used for driving the clamping plate 18 to move left and right. The two-stage gearbox 2 drives the clamping plate 18 to move through the second oil cylinder 11, a duplicate gear consisting of a first slave gear 16 and a second slave gear 17 is pushed, when the clamping plate 18 slides leftwards, the first slave gear 16 is meshed with the first master gear 14, the transmission ratio is small at the moment, and the rotating speed of the output shaft 5 is high; when the clamping plate 18 slides to the right, the second driven gear 17 is meshed with the second main gear 15, the transmission ratio is large, and the rotation speed of the output shaft 5 is low.
In this embodiment, the output shaft 5 is connected to a torque sensor 7 through a first coupling 6, and an end of the torque sensor 7 is connected to a hub 9 through a second coupling 8.
Referring to fig. 3, a conical cavity is formed inside the hub 9, the spindle head 10 is inserted into the conical cavity, a detected bearing 28 is sleeved on the periphery of the spindle head 10, the outer end of the spindle head 10 is fixedly connected to the frame 1 through a supporting seat 22, the first oil cylinder 4 is fixedly arranged on the side of the supporting seat 22, and the output end of the first oil cylinder is connected with a pull rod 26. Specifically, the output end of the first oil cylinder 4 is connected with an oil cylinder shaft 23, and the oil cylinder shaft 23 is connected with the end part of the pull rod 26 through a connecting sleeve 25. The end of the pull rod 26 penetrates through the center of the shaft head 10 and is fixedly connected with the outer surface of the shaft head 10 through a gasket 27, and the side part of the gasket 27 is pressed against the inner ring of the bearing. When the device is used, a set pretightening force is applied to the bearing 28 to be measured through the first oil cylinder 4, and the output shaft 5 drives the torque sensor 7 and the hub 9 to rotate, so that the bearing 28 to be measured is driven to rotate.
Further, a temperature sensor 29 connected with the measured bearing 28 is arranged on the spindle head 10, and the torque sensor 7 and the temperature sensor 29 are connected with a PLC controller and used for detecting whether the measured bearing 28 is qualified or not. The PLC receives the collected bearing temperature and torque data, and judges whether the bearing is damaged or not when the temperature or the torque reaches a set threshold value. The determination part is controlled by the existing computer program, which is not described herein for the prior art.
In summary, the beneficial effects of the utility model include: by applying a pre-tightening force in a preset direction to the bearing 28 to be detected and enabling the bearing to rotate, the temperature and the torque of the locomotive bearing under the rotation dynamic state can be detected in real time, and whether the bearing 28 to be detected is damaged or not is judged according to the temperature and the torque, so that the detection is quick, the research and development period of the bearing is shortened, and the development cost is reduced; by additionally arranging the two-stage gearbox 2 between the driving motor 3 and the transmission shaft 12, the two-stage gearbox 2 drives the clamping plate 18 to move through the second oil cylinder 11, a duplicate gear consisting of the first slave gear 16 and the second slave gear 17 is pushed, when the clamping plate 18 slides leftwards, the first slave gear 16 is meshed with the first master gear 14, the transmission ratio is small at the moment, and the rotating speed of the output shaft 5 is high; when the clamping plate 18 slides to the right, the second driven gear 17 is meshed with the second main gear 15, the transmission ratio is large, and the rotation speed of the output shaft 5 is low. The quality detection of the bearing at high and low rotating speeds is realized through the two-stage gearbox 2, and the two-stage gearbox 2 is compact in structure and small in occupied size.
The technical scope of the present invention is not limited to the above description, and those skilled in the art can make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and such changes and modifications should fall within the protective scope of the present invention.
Claims (5)
1. A dynamic detection device for the rotation of a locomotive bearing is characterized by comprising a rack, a driving motor, a secondary gearbox, an output shaft, a hub, a spindle head and a first oil cylinder, wherein the driving motor, the secondary gearbox, the output shaft, the hub, the spindle head and the first oil cylinder are arranged on the rack, the input end and the output end of the secondary gearbox are respectively connected with the driving motor and the output shaft and used for changing the output transmission ratio, the output shaft is connected with a torque sensor through a first coupler, the end part of the torque sensor is connected with the hub through a second coupler, a conical cavity is arranged in the hub, the spindle head is inserted into the conical cavity and sleeved with a bearing to be detected at the periphery of the spindle head, the outer end part of the spindle head is fixedly connected to the rack through a supporting seat, the first oil cylinder is fixedly arranged at the side part of the supporting seat, the output end part of the first oil cylinder is connected with a pull rod, the end part of the pull rod penetrates through the center of the spindle head and is fixedly connected with the outer surface of the spindle head through a gasket, and the side part of the gasket is pressed against the inner ring of the bearing, the shaft head is provided with a temperature sensor connected with the measured bearing, and the torque sensor and the temperature sensor are connected with the PLC controller and used for detecting whether the measured bearing is qualified or not.
2. The rolling stock bearing rotation dynamic detection device of claim 1, wherein the two-stage transmission comprises a transmission housing, and a transmission shaft and an output shaft rotatably disposed inside the transmission housing, the transmission shaft is circumferentially and fixedly provided with a first master gear and a second master gear, the output shaft is circumferentially and fixedly provided with a first slave gear and a second slave gear, the first master gear and the first slave gear are engaged with each other or the second master gear and the second slave gear are engaged with each other, an end of the transmission shaft is connected with a driving motor, a piston rod is further disposed inside the transmission housing, a clamping plate is fixedly disposed on the piston rod, the first slave gear or the second slave gear extends into the clamping plate from an edge of the gear, a second cylinder is fixedly disposed outside the transmission housing, and an output end of the second cylinder is connected with the piston rod for driving the clamping plate to move left and right.
3. The rolling stock bearing rotation dynamics detection apparatus of claim 2, wherein the bottom end of the clamp plate has a slider portion, and the transmission housing has a fixed rail disposed therein, the slider portion being slidably engaged with the fixed rail.
4. The dynamic rolling stock bearing rotation detection device of claim 2, wherein the first driven gear has a cylindrical portion extending circumferentially, the second driven gear is fixed circumferentially on the cylindrical portion, guide grooves are formed in opposite side surfaces of the first driven gear and the output shaft, and a bar-shaped block is disposed in the guide grooves.
5. The dynamic rolling stock bearing rotation detector as claimed in claim 1, wherein the first cylinder output end is connected to a cylinder shaft, and the cylinder shaft is connected to the end of the drawbar via a coupling sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121221548.0U CN215573765U (en) | 2021-06-02 | 2021-06-02 | Dynamic detection device for rotation of locomotive bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121221548.0U CN215573765U (en) | 2021-06-02 | 2021-06-02 | Dynamic detection device for rotation of locomotive bearing |
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| Publication Number | Publication Date |
|---|---|
| CN215573765U true CN215573765U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121221548.0U Active CN215573765U (en) | 2021-06-02 | 2021-06-02 | Dynamic detection device for rotation of locomotive bearing |
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| CN (1) | CN215573765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115901088A (en) * | 2022-09-28 | 2023-04-04 | 南通盟鼎新材料有限公司 | Composite material's axle dynamic balance test machine |
-
2021
- 2021-06-02 CN CN202121221548.0U patent/CN215573765U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115901088A (en) * | 2022-09-28 | 2023-04-04 | 南通盟鼎新材料有限公司 | Composite material's axle dynamic balance test machine |
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