CN219829814U - Brake disc end jump detection device - Google Patents
Brake disc end jump detection device Download PDFInfo
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- CN219829814U CN219829814U CN202320805524.2U CN202320805524U CN219829814U CN 219829814 U CN219829814 U CN 219829814U CN 202320805524 U CN202320805524 U CN 202320805524U CN 219829814 U CN219829814 U CN 219829814U
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- brake disc
- mounting plate
- lifting seat
- pressure head
- lower pressure
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- 238000001514 detection method Methods 0.000 title claims abstract description 70
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 239000002861 polymer material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 3
- 230000009191 jumping Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses a brake disc end jump detection device, which comprises a base, wherein a mounting rack is arranged above the base; the mounting frame comprises a mounting plate and support plates arranged on two sides of the mounting plate; a pressing mechanism is arranged in front of the upper end of the mounting plate, and a measuring mechanism is arranged behind the lower end of the mounting plate; one side of the base, which is far away from the mounting frame, is provided with a supporting and positioning table. According to the utility model, the lifting seat is driven to move downwards through the ball screw sliding table, so that the rotary detection shaft moves downwards to drive the lower pressure head to extrude the brake disc to be inspected; meanwhile, the rotating motor drives the lower pressure head to rotate, wherein the lower pressure head drives the brake disc to rotate by virtue of friction force; a balancing weight is arranged on the rotation detection shaft to make up the gap between the lower pressure head and the brake disc to be inspected, so that the loading environment is simulated to the greatest extent; the automatic detection of the brake disc end jump value to be detected through the distance measuring device can simplify the detection process of the end jump value and greatly improve the accuracy of the detection of the brake disc end jump value to be detected.
Description
Technical Field
The utility model relates to the technical field of vehicle brake disc detection, in particular to a brake disc end jump detection device.
Background
The brake disc is a key part in an automobile brake system, the automobile realizes the braking of the automobile through the brake disc, in particular to a brake caliper is arranged on the brake disc, and two pistons on the brake caliper respectively apply opposite-direction pressure to two end surfaces of the brake disc at the same time so as to realize the braking. The end face runout of the brake disc is one of the main reasons for vehicle brake shake, namely the axial height change of the disc surface of the brake disc along the circumferential direction, and the end face runout is one of the main reasons for vehicle brake shake, so that the brake shake not only accelerates the aging of related parts and influences the comfort of a vehicle, but also influences the safety of vehicle driving.
The existing device for detecting the end jump of the brake disc usually adopts a dial indicator as a measuring instrument, and reads the measured value by contacting the surface of the brake disc, however, the detection method easily causes a larger measurement error value, finally influences the detection precision of the brake disc, and causes the detection data value to not meet the requirement.
Disclosure of Invention
The utility model aims to provide a brake disc end jump detection device so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the brake disc end jump detection device comprises a base, wherein four corners of the bottom of the base are respectively provided with an adjustable foot cup, and a mounting rack is arranged above the base; the mounting frame comprises a mounting plate which is vertically arranged and supporting plates which are arranged on two sides of the mounting plate, wherein the supporting plates are fixedly connected with two sides of the mounting plate respectively; a pressing mechanism is arranged in front of the upper end of the mounting plate, and is in sliding connection with the mounting plate; the lower end of the mounting plate is provided with a rectangular through hole, wherein a measuring mechanism is arranged behind the lower end of the mounting plate, penetrates through the rectangular through hole and extends forwards; one side of the base, which is far away from the mounting frame, is provided with a supporting and positioning table, wherein the supporting and positioning table is arranged below the pressing mechanism.
Preferably, the compressing mechanism comprises a ball screw sliding table, wherein the ball screw sliding table is vertically arranged and fixedly connected with the mounting plate; an advancing motor is arranged at the upper end of the ball screw sliding table, and an output shaft of the advancing motor is fixedly connected with the top end of the screw rod through a coupler; and the movable block of the ball screw sliding table is fixedly provided with a lifting seat, and the lifting seat is in sliding connection with the mounting plate.
Preferably, a rotating motor is arranged at the top end of the lifting seat, and a rotation detection shaft is arranged at the lower end of the lifting seat; the rotary motor is fixedly connected with the lifting seat through the motor fixing seat, wherein an output shaft of the rotary motor downwards penetrates through the upper end surface of the lifting seat and extends into the lifting seat; the top end of the rotation detection shaft upwards penetrates through the bottom of the lifting seat, and a bearing is arranged between the rotation detection shaft and the lifting seat; a speed reducer is arranged in the lifting seat, one end of the speed reducer is connected with the output shaft of the rotating motor, and the other end of the speed reducer is connected with the rotation detection shaft.
Preferably, the measuring mechanism comprises a ball screw cross sliding table, and the ball screw cross sliding table consists of a vertical sliding rail and a horizontal sliding rail; the vertical sliding rail is fixedly connected with the rear of the mounting plate, and the front end of the horizontal sliding rail penetrates through the rectangular through hole and extends forwards to the lower part of the lifting seat; and a ranging device is fixedly arranged at the front end of the horizontal sliding rail, and the ranging device is positioned at the side part of the supporting and positioning table.
Preferably, the distance measuring device is any one of a laser sensor, an ultrasonic distance measuring sensor, an infrared distance measuring sensor and a radar distance measuring sensor.
Preferably, two groups of sliding blocks are symmetrically arranged on one side, close to the mounting plate, of the lifting seat, and linear sliding rails matched with the sliding blocks are arranged on the mounting plate.
Preferably, a proximity switch is arranged on the mounting plate, wherein the proximity switch is arranged on one side of the lifting seat.
Preferably, the tail end of the rotation detection shaft is provided with a lower pressure head, wherein the lower pressure head protrudes downwards, and the lower pressure head is abutted with the end face of the inner ring of the brake disc to be detected.
Preferably, the rotation detection shaft is provided with a balancing weight.
Preferably, the lower pressure head is made of PU high polymer materials.
Preferably, the bottom of the supporting and positioning table is fixedly connected with the base, and the upper end of the supporting and positioning table is arranged opposite to the lower pressure head.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the brake disc to be inspected is placed on the supporting and positioning table, and the ball screw slipway is controlled to drive the lifting seat to move downwards, so that the rotation detection shaft at the bottom of the lifting seat moves downwards to drive the lower pressure head to squeeze the brake disc to be inspected; the rotating motor is controlled to drive the rotation detection shaft to rotate, so that the rotation detection shaft drives the lower pressure head to rotate, the lower pressure head drives the brake disc to rotate by virtue of friction force, and in addition, the lower pressure head is stably contacted with the surface of the inner ring of the brake disc to be inspected, so that the radial level of the brake disc to be inspected is ensured, and meanwhile, the brake disc to be inspected can be driven to rotate by the generated friction force; the balancing weight is arranged on the rotation detection shaft to compensate for unstable factors caused by the gap between the lower pressure head and the brake disc to be inspected, so that the loading environment is simulated to the greatest extent; the end jump value of the brake disc to be inspected is obtained by irradiating the end face of the brake disc to be inspected through the distance measuring device, so that the automatic detection of the end jump value of the brake disc to be inspected is realized, and compared with the detection of measuring tools such as a dial indicator, the detection process of the end jump value can be simplified, and the accuracy of the end jump value detection of the brake disc to be inspected can be improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a side view of the present utility model;
FIG. 3 is a rear view of the present utility model;
FIG. 4 is a schematic view of the structure of the hold-down mechanism of the present utility model;
fig. 5 is a schematic view of the structure of the measuring mechanism of the present utility model.
Wherein: 1. a base; 2. an adjustable foot cup; 3. a mounting frame; 301. a mounting plate; 302. a support plate; 4. a compressing mechanism; 401. a ball screw sliding table; 402. an improved motor; 403. a coupling; 5. rectangular through holes; 6. a measuring mechanism; 601. ball screw cross sliding table; 6011. a vertical slide rail; 6012. a horizontal slide rail; 602. a distance measuring device; 7. supporting a positioning table; 8. a lifting seat; 9. a rotating electric machine; 10. rotating the detection shaft; 11. a motor fixing seat; 12. a slide block; 13. a linear slide rail; 14. a proximity switch; 15. a lower pressure head; 16. and (5) balancing weights.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings.
Referring to fig. 1 to 5 in combination, a brake disc end jump detection device comprises a base 1, wherein four corners of the bottom of the base 1 are respectively provided with an adjustable cup 2, and the levelness of the base 1 is adjusted by adjusting the adjustable cup 2, so that the radial level of a brake disc to be detected is ensured, and the accuracy of subsequent detection is facilitated; the mounting frame 3 is arranged above the base 1, the mounting frame 3 comprises a mounting plate 301 and supporting plates 302, wherein the mounting plate 301 is vertically arranged, the supporting plates 302 are arranged on two sides of the mounting plate 301, the supporting plates 302 are fixedly connected with two sides of the mounting plate 301 respectively, the lower ends of the mounting plate 301 and the supporting plates 302 are fixedly connected with the upper end face of the base 1 respectively, the supporting plates 302 are arranged on two sides of the mounting plate 301 and used for supporting and fixing the mounting plate 301, shaking of the supporting plates 302 during use is avoided, and the use stability of the mounting plate 301 is greatly improved; a pressing mechanism 4 is arranged in front of the upper end of the mounting plate 301, wherein the pressing mechanism 4 is in sliding connection with the mounting plate 301; the lower end of the mounting plate 301 is provided with a rectangular through hole 5, wherein a measuring mechanism 6 is arranged behind the lower end of the mounting plate 301, and the measuring mechanism 6 penetrates through the rectangular through hole 5 and extends forwards; a supporting and positioning table 7 is arranged on one side of the base 1 away from the mounting frame 3, wherein the supporting and positioning table 7 is arranged below the pressing mechanism 4; the compressing mechanism 4 slides up and down along the mounting plate 301, so that a compressing piece at the lower end of the compressing mechanism 4 moves downwards to be matched with the supporting and positioning table 7 to compress and fix the brake disc to be inspected, then the disc surface change condition of the brake disc to be inspected is obtained through the measuring mechanism 6, and the jumping value of the brake disc to be detected is calculated based on the obtained distance change condition, so that the automatic detection of the end jumping value of the brake disc to be detected is realized.
Referring to fig. 1 to fig. 4 in combination, as an embodiment of the present utility model, the pressing mechanism 4 includes a ball screw sliding table 401, where the ball screw sliding table 401 is vertically disposed and fixedly connected with the mounting plate 301; an advancing motor 402 is arranged at the upper end of the ball screw sliding table 401, wherein an output shaft of the advancing motor 402 is fixedly connected with the top end of the screw through a coupler 403; the movable block of the ball screw sliding table 401 is fixedly provided with a lifting seat 8, wherein the lifting seat 8 is in sliding connection with the mounting plate 301.
In the above scheme, the lead screw is driven to rotate through the progressive motor 402, so that the movable block on the drive lead screw drives the lifting seat 8 to move up and down along the vertical direction of the lead screw, the moving distance of the lifting seat 8 can be precisely controlled according to the detection requirement, the lifting seat 8 drives the lower pressure head 15 at the tail end of the rotary detection shaft 10 to precisely fit the brake disc to be inspected, the unstable factors caused by the clearance between the lower pressure head and the surface of the brake disc to be inspected are avoided, and the detection efficiency is improved.
Referring to fig. 1 to fig. 4 in combination, as an embodiment of the present utility model, a rotating motor 9 is disposed at the top end of the lifting seat 8, wherein a rotation detecting shaft 10 is disposed at the lower end of the lifting seat 8; the rotating motor 9 is fixedly connected with the upper part of the lifting seat 8 through a motor fixing seat 11, wherein an output shaft of the rotating motor 9 downwards penetrates through the upper end surface of the lifting seat 8 and extends into the lifting seat 8; the top end of the rotation detection shaft 10 upwards penetrates through the bottom of the lifting seat 8, and a bearing is arranged between the rotation detection shaft 10 and the lifting seat 8; a speed reducer (not shown) is arranged in the lifting seat 8, one end of the speed reducer is connected with an output shaft of the rotating motor 9, and the other end of the speed reducer is connected with the rotation detection shaft 10.
In the above scheme, the rotating motor 9 drives the rotation detection shaft 10 to rotate through the speed reducer, wherein the rotating speed of the rotation detection shaft 10 is controlled to be 15-20 r/min, so that the rotation stability of the rotation detection shaft 10 for driving the brake disc to be inspected can be ensured, and meanwhile, the brake disc cannot be damaged.
Referring to fig. 1 and fig. 5 in combination, as an embodiment of the present utility model, the measuring mechanism 6 includes a ball screw cross sliding table 601, where the ball screw cross sliding table 601 is composed of a vertical sliding rail 6011 and a horizontal sliding rail 6012; the vertical sliding rail 6011 is fixedly connected with the rear of the mounting plate 301, wherein the front end of the horizontal sliding rail 6012 penetrates through the rectangular through hole 5 and extends forward to the lower part of the lifting seat 8; the front end of the horizontal sliding rail 6012 is fixedly provided with a distance measuring device 602, wherein the distance measuring device 602 is positioned at the side part of the supporting and positioning table 7.
In the above-mentioned scheme, the ranging device 602 is any one of a laser sensor, an ultrasonic ranging sensor, an infrared ranging sensor and a radar ranging sensor, where the ranging devices such as the laser ranging sensor, the ultrasonic ranging sensor, the infrared ranging sensor and the radar ranging sensor have the characteristics of high detection accuracy, strong universality and convenient replacement; according to the set detection position, the vertical sliding rail 6011 on the ball screw cross sliding table 601 is controlled to adjust the height, meanwhile, the horizontal sliding rail 6012 is controlled to drive the distance measuring device 602 to horizontally move, the distance measuring device 602 is moved to the side edge of the brake disc to be detected, the end face of the brake disc to be detected is irradiated through the distance measuring device 602 to obtain the end jump value of the brake disc, and automatic detection of the end jump value of the brake disc to be detected is achieved.
Referring to fig. 4, as an embodiment of the present utility model, two sets of sliding blocks 12 are symmetrically disposed on a side of the lifting seat 8 near the mounting plate 301, wherein the mounting plate 301 is provided with a linear sliding rail 13 adapted to the sliding blocks 12.
In the above-mentioned scheme, the ball screw sliding table 401 drives the lifting seat 8 to move up and down along the vertical direction of the screw, and simultaneously cooperates with the sliding block 12 on the lifting seat 8 to slide along the linear sliding rail 13, so that the sliding stability of the lifting seat 8 is greatly improved.
Referring to fig. 4, as an embodiment of the present utility model, the mounting plate 301 is provided with a proximity switch 14, where the proximity switch 14 is disposed on one side of the lifting seat 8.
In the above-mentioned scheme, through installing proximity switch 14 in lifting seat 8 one side, but accurate control lifting seat 8 reciprocates the distance, the lifting seat 8 of being convenient for drives the terminal lower pressure head 15 accurate laminating of rotatory detection axle 10 and wait to inspect the brake disc, avoids lower pressure head 15 to exist the clearance with waiting to inspect the brake disc terminal surface and causes unstable factor to be convenient for lower pressure head 15 drives waiting to inspect the brake disc terminal rotation.
Referring to fig. 4, as an embodiment of the present utility model, a lower pressing head 15 is disposed at the end of the rotation detecting shaft 10, wherein the lower pressing head 15 protrudes downward, and the lower pressing head 15 abuts against the end face of the inner ring of the brake disc to be inspected.
In the above-mentioned scheme, rotating electrical machines 9 drive rotatory detection axle 10 through the reduction gear and rotate, make rotatory detection axle 10 rotate and drive down pressure head 15 rotatory, wherein down pressure head 15 relies on frictional force to drive and wait to inspect the brake disc rotatory, down pressure head 15 adopts PU macromolecular material to make in addition, this down pressure head 15 protruding end is steady with the inner circle surface contact of waiting to inspect the brake disc, it is rotatory also can be driven to wait to inspect the brake disc through the frictional force that pressure head 15 produced when having guaranteed to wait to inspect the radial level of brake disc, thereby be convenient for range finding device 602 to shine the end of waiting to inspect the brake disc and obtain the end jump value of brake disc, guarantee the detection precision.
Referring to fig. 4, as an embodiment of the present utility model, the rotation detecting shaft 10 is provided with a counterweight 16; the bottom of the supporting and positioning table 7 is fixedly connected with the base 1, wherein the upper end of the supporting and positioning table 7 is arranged opposite to the lower pressure head 15.
In the above scheme, the lower pressure head 15 is arranged opposite to the supporting and positioning table 7, wherein the supporting and positioning table 7 is arranged right below the lower pressure head 15, and is matched with the supporting and positioning table 7 through the lower pressure head 15 to tightly press and fix the brake disc to be inspected, so that the shake of the brake disc to be inspected is reduced to the greatest extent; the balancing weight 16 is used for increasing the pressing force applied by the lower pressing head 15 to the brake disc to be inspected, wherein the pressing force of the lower pressing head 15 to the brake disc to be inspected is 280-350 kgf/square meter, the unstable factors caused by the gap between the lower pressing head 15 and the brake disc to be inspected are compensated by installing the balancing weight 16 on the rotary detection shaft 10, the loading environment is simulated to the greatest extent, and meanwhile, the detection precision is ensured.
To sum up: according to the utility model, the brake disc to be inspected is placed on the supporting and positioning table 7, the ball screw sliding table 401 is controlled to drive the lifting seat 8 to move downwards, so that the rotation detection shaft 10 at the bottom of the lifting seat 8 moves downwards to drive the lower pressing head 15 to squeeze the brake disc to be inspected; the rotating motor 9 is controlled to drive the rotation detection shaft 10 to rotate, so that the rotation detection shaft 10 drives the lower pressure head 15 to rotate, wherein the lower pressure head 15 drives the brake disc to be inspected to rotate by virtue of friction force, the radial level of the brake disc to be inspected is ensured, the brake disc to be inspected can be driven to rotate by the generated friction force, and the unstable factors caused by the gap between the lower pressure head 15 and the brake disc to be inspected are compensated by arranging the balancing weight 16 on the rotation detection shaft 10, so that the loading environment is simulated to the greatest extent; when the lower pressure head 15 drives the brake disc to be inspected to rotate, the distance measuring device 602 arranged on one side of the supporting and positioning table 7 irradiates the end face of the brake disc to be inspected to obtain the end jump value of the brake disc to be inspected, so that the automatic detection of the end jump value of the brake disc to be inspected is realized.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.
Claims (10)
1. The brake disc end jump detection device comprises a base (1), wherein four corners of the bottom of the base (1) are respectively provided with an adjustable foot cup (2), and a mounting rack (3) is arranged above the base (1); the mounting rack (3) is characterized by comprising a mounting plate (301) and supporting plates (302) arranged on two sides of the mounting plate (301); a pressing mechanism (4) is arranged in front of the upper end of the mounting plate (301), and the pressing mechanism (4) is connected with the mounting plate (301) in a sliding manner; the lower end of the mounting plate (301) is provided with a rectangular through hole (5), wherein a measuring mechanism (6) is arranged behind the lower end of the mounting plate (301), and the measuring mechanism (6) penetrates through the rectangular through hole (5) and extends forwards; one side of the base (1) far away from the mounting frame (3) is provided with a supporting and positioning table (7), wherein the supporting and positioning table (7) is arranged below the pressing mechanism (4).
2. A brake disc end jump detection device according to claim 1, characterized in that the hold-down mechanism (4) comprises a ball screw slide (401), wherein the ball screw slide (401) is fixedly connected with the mounting plate (301); an advancing motor (402) is arranged at the upper end of the ball screw sliding table (401), and an output shaft of the advancing motor (402) is fixedly connected with the top end of the screw through a coupler (40); and a lifting seat (8) is fixedly arranged on the movable block of the ball screw sliding table (401), wherein the lifting seat (8) is in sliding connection with the mounting plate (301).
3. The brake disc end jump detection device according to claim 2, wherein a rotating motor (9) is arranged at the top end of the lifting seat (8), and a rotation detection shaft (10) is arranged at the lower end of the lifting seat (8); the rotating motor (9) is fixedly connected with the lifting seat (8) through a motor fixing seat (11), wherein an output shaft of the rotating motor (9) downwards penetrates through the upper end surface of the lifting seat (8) and extends into the lifting seat (8); the top end of the rotation detection shaft (10) upwards penetrates through the bottom of the lifting seat (8), and a bearing is arranged between the rotation detection shaft (10) and the lifting seat (8); a speed reducer is arranged in the lifting seat (8), one end of the speed reducer is connected with an output shaft of the rotating motor (9), and the other end of the speed reducer is connected with the rotation detection shaft (10).
4. A brake disc end jump detection device according to claim 1, characterized in that the measuring means (6) comprises a ball screw cross slide (601), the ball screw cross slide (601) being composed of a vertical slide rail (6011) and a horizontal slide rail (6012); the vertical sliding rail (6011) is fixedly connected with the rear of the mounting plate (301), and the front end of the horizontal sliding rail (6012) penetrates through the rectangular through hole (5) and extends forwards to the position below the lifting seat (8); the front end of the horizontal sliding rail (6012) is fixedly provided with a distance measuring device (602), wherein the distance measuring device (602) is positioned at the side part of the supporting and positioning table (7).
5. The brake disc end-jump detection apparatus according to claim 4, wherein said distance measuring device (602) is any one of a laser sensor, an ultrasonic distance measuring sensor, an infrared distance measuring sensor and a radar distance measuring sensor.
6. A brake disc end jump detection device according to claim 3, characterized in that two groups of sliding blocks (12) are symmetrically arranged on one side of the lifting seat (8) close to the mounting plate (301), and a linear sliding rail (13) matched with the sliding blocks (12) is arranged on the mounting plate (301).
7. A brake disc end jump detection device according to claim 6, characterized in that the mounting plate (301) is provided with a proximity switch (14), wherein the proximity switch (14) is arranged on one side of the lifting seat (8).
8. A brake disc end jump detecting device according to claim 3, characterized in that the rotation detecting shaft (10) is provided with a lower pressure head (15) at its end, wherein the lower pressure head (15) protrudes downwards.
9. Brake disc end jump detection device according to claim 8, characterized in that the rotation detection shaft (10) is provided with a balancing weight (16).
10. The brake disc end jump detection device according to claim 8, wherein the lower pressure head (15) is made of PU polymer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320805524.2U CN219829814U (en) | 2023-04-12 | 2023-04-12 | Brake disc end jump detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320805524.2U CN219829814U (en) | 2023-04-12 | 2023-04-12 | Brake disc end jump detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219829814U true CN219829814U (en) | 2023-10-13 |
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ID=88285264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320805524.2U Active CN219829814U (en) | 2023-04-12 | 2023-04-12 | Brake disc end jump detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219829814U (en) |
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2023
- 2023-04-12 CN CN202320805524.2U patent/CN219829814U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 430000, 21st Floor, Chensheng Center, No. 130 Shipailing Road, Wuchang District, Wuhan City, Hubei Province Patentee after: Hubei Provincial Institute of Mechanical and Electrical Engineering Group Co.,Ltd. Address before: 430000 No.118 shipailing, Wuchang District, Wuhan City, Hubei Province Patentee before: HUBEI MECHANICAL AND ELECTRICAL RESEARCH AND DESIGN INSTITUTE CO.,LTD. |
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| CP03 | Change of name, title or address |