CN109263406B - Hub unit tightening device - Google Patents
Hub unit tightening device Download PDFInfo
- Publication number
- CN109263406B CN109263406B CN201811358656.5A CN201811358656A CN109263406B CN 109263406 B CN109263406 B CN 109263406B CN 201811358656 A CN201811358656 A CN 201811358656A CN 109263406 B CN109263406 B CN 109263406B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- adjusting nut
- core
- stop core
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B29/00—Apparatus or tools for mounting or dismounting wheels
- B60B29/003—Wrenches, e.g. of the ratchet type
- B60B29/006—Wrenches, e.g. of the ratchet type with electric or pneumatic drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Automatic Assembly (AREA)
Abstract
The invention belongs to the field of automobile hub units, and particularly discloses a hub unit tightening device which comprises a servo motor, a rotating shaft system, a stop core sleeve and an adjusting nut sleeve, wherein the servo motor is arranged on the rotating shaft system; the servo motor is connected with the rotating shaft system and drives the rotating shaft system to rotate, one end of the rotating shaft system is fixedly connected with an adjusting nut sleeve, and the adjusting nut sleeve is provided with a protrusion corresponding to the notch of the adjusting nut; the rotating shaft system is sleeved on the outer wall of the stop core, one end of the stop core, which is close to the adjusting nut sleeve, is fixedly connected with a stop core sleeve, and the stop core sleeve is provided with a bulge corresponding to the notch of the tile sleeve. The anti-loosening device has the functions of aligning and tightening the anti-loosening notch, is simple and convenient to operate, high in reliability and high in tightening precision, can be integrated on special equipment on a hub assembly production line for use, and solves the problems of inconvenience in manual operation, low efficiency and the like.
Description
Technical Field
The invention belongs to the field of automobile hub units, and particularly relates to a hub unit tightening device.
Background
In the field of automotive production, there is a considerable part of the hub structure shown in fig. 3. Wherein the adjusting nut has 4 or 6 slots and the tile sleeve has 5 slots. The specific technological requirement is that the tapered roller bearing generates a certain pretightening force by screwing the adjusting nut, and meanwhile, a certain notch on the adjusting nut is aligned with a certain notch of the bush sleeve, so that the locking plate is convenient to install, and the locking effect is achieved. Because the tile sleeve rotates freely, the conical roller bearing generates certain pretightening force by screwing the adjusting nut, the tile sleeve is firstly fixed so as not to rotate, then the adjusting nut can be screwed, in the screwing process, the torque is observed, whether the notch is aligned or not is also checked, and in actual operation, the method is very complicated, and the beat requirement cannot be met.
Disclosure of Invention
According to the defects existing in the prior art, the invention aims to provide the electric bolt tightening device which can automatically align the notch, is high in tightening precision and guarantees the pre-tightening force of the bearing, so that the problems of inconvenience in manual operation, low efficiency and the like are solved.
In order to achieve the purpose, the technical scheme adopted by the invention is that the hub unit tightening device comprises a servo motor, a rotating shaft system, a stop core sleeve and an adjusting nut sleeve; the servo motor is connected with the rotating shaft system and drives the rotating shaft system to rotate, one end of the rotating shaft system is fixedly connected with an adjusting nut sleeve, and the adjusting nut sleeve is provided with a protrusion corresponding to the notch of the adjusting nut; the rotating shaft system is sleeved on the outer wall of the stop core, one end of the stop core, which is close to the adjusting nut sleeve, is fixedly connected with the stop core sleeve, the stop core sleeve is provided with a bulge corresponding to the notch of the tile sleeve, and one end of the stop core, which is far away from the adjusting nut sleeve, is in sliding connection with the rotating shaft system.
Further, rotation axis system includes electronic screw up axle, gear box and output shaft, servo motor connects electronic screw up axle, and electronic screw up the axle and be connected with the output shaft transmission through the gear in the gear box, and the output fixedly connected with adjustment nut sleeve of output shaft, output shaft sleeve establish on the outer wall of stopping the core, stop the core and pass output shaft and gear box and upwards extend, stop core and gear box sliding connection.
Further, a fixed seat is arranged above the gear box, the upper part of the stop core is arranged in the fixed seat and is in sliding connection with the fixed seat, and a first detection switch for detecting whether the stop core is completely matched with the stop core sleeve is arranged on the stop core.
Further, a second detection switch for detecting whether the adjusting nut is completely matched with the adjusting nut sleeve or not is arranged on the output shaft.
Further, the stop core and the stop core sleeve are connected by driving square and pin. The upper end of the stop core is provided with an external spline, and the inner hole of the fixing seat is provided with an internal spline. The external spline slides in the internal spline. The up-and-down movement of the core stopping sleeve is realized by the fact that the tile sleeve rotates under the friction force of the adjusting nut, and the core stopping sleeve can be automatically matched with the tile sleeve, so that the rotation stopping is realized.
Further, a sensor for measuring torque is arranged on the electric tightening shaft.
Further, the output flange plate is connected with the output shaft through a spline, the output flange plate is provided with a pin, and the adjusting nut sleeve is connected to the output flange plate through the pin.
Further, an encoder for recording the position of the adjusting nut sleeve is arranged in the servo motor.
The beneficial effects of the invention are as follows: the anti-loosening device has the functions of aligning and tightening the anti-loosening notch, is simple and convenient to operate, high in reliability and high in tightening precision, can be integrated on special equipment on a hub assembly production line for use, and solves the problems of inconvenience in manual operation, low efficiency and the like.
Drawings
Figure 1 is a cross-sectional view of the structure of the present invention,
figure 2 is a perspective view of the structure of the present invention,
figure 3 is a cross-sectional view of the hub structure,
figure 4 is a top view of the hub structure,
figure 5 is a perspective view of the hub structure,
figure 6 is a schematic diagram of a circuit,
in the figure: 1. the electric tightening shaft 2, the sensor 3, the stop core 4, the gear box 5, the stop core sleeve 6, the adjusting nut sleeve 7, the first detection switch 8, the second detection switch 9, the fixing seat 10, the output shaft 11, the output flange 12, the pin 13, the servo motor 20, the locking plate 21, the adjusting nut 22, the bush sleeve 23, the hub 24, the tapered roller bearing, 25, the sleeve in-situ switch, 26, the low-position cap-identifying switch, 27 and the high-position cap-identifying switch.
Detailed Description
In order to make the technical scheme of the invention clearer, the technical scheme of the invention is further described below with reference to the attached drawings and the specific embodiments.
The hub unit tightening device comprises a servo motor 13, a rotating shaft system, a stop core 3, a stop core sleeve 5 and an adjusting nut sleeve 6; the servo motor 13 is connected with the rotating shaft system and drives the rotating shaft system to rotate, one end of the rotating shaft system is fixedly connected with the adjusting nut sleeve 6, and the adjusting nut sleeve 6 is provided with a bulge corresponding to the notch of the adjusting nut; the rotating shaft system is sleeved on the outer wall of the stop core 3, one end of the stop core 3, which is close to the adjusting nut sleeve 6, is fixedly connected with a stop core sleeve 5, and the stop core sleeve 5 is provided with a bulge corresponding to the notch of the tile sleeve.
Further, the rotation shaft system comprises an electric tightening shaft 1, a gear box 4 and an output shaft 10, the servo motor 13 is connected with the electric tightening shaft 1, the electric tightening shaft 1 is in transmission connection with the output shaft 10 through a gear in the gear box 4, the output end of the output shaft 10 is fixedly connected with an adjusting nut sleeve 6, the output shaft 10 is sleeved on the outer wall of the stop core 3, a fixing seat 9 is arranged above the gear box 4, the upper portion of the stop core 3 is in sliding connection with the fixing seat 9, namely, the upper portion of the gear box 4 is the fixing seat 9, the lower portion of the gear box 4 is connected with the output shaft 10, the output shaft 10 does not extend to the upper portion of the gear box, and the stop core 3 sequentially penetrates through the fixing seat 9, the gear box 4 and the output shaft 10 from top to bottom.
Further, the stopper 3 and the stopper sleeve 5 are connected by driving tetragonal and pin. The upper end of the stop core is provided with an external spline, and the inner hole of the fixing seat 9 is provided with an internal spline. The external spline slides in the internal spline. The up-and-down movement of the core stopping sleeve 5 is to enable the bushing to rotate under the friction force of the adjusting nut, and the core stopping sleeve 5 can be automatically matched with the bushing, so that rotation stopping is achieved.
Further, said output flange 11 is splined to the output shaft 10, the output flange 11 being provided with pins 12, and the adjustment nut sleeve 6 being connected to the output flange by means of the pins 12.
In the device, an electric tightening shaft 1 is a power source, a stop core 3 and a stop core sleeve 5 are concentrically arranged, the stop core 3 and the stop core sleeve 5 are slidable and non-rotatable, the end part of the stop core 3 is in a spline form and is connected with a fixed seat 9, the stop core 3 can drive the stop core sleeve 5 to slide in the fixed seat 9, and the fixed seat 9 is fixed on a gear box 4, so that the stop core sleeve 5 has a unique position relation for the gear box 4. An output shaft 10 is arranged outside the gear box 4, an output flange 11 is connected with the output shaft 10 in a spline form, the output flange 11 is provided with a pin 12, and the adjusting nut sleeve 6 is connected through the pin 12, so that the power output of the electric tightening shaft 1 can be acted on the adjusting nut.
The working process of the invention is as follows: the core-stopping sleeve 5 is provided with 5 bulges corresponding to 5 notches of the tile sleeve, and the adjusting nut sleeve 6 is provided with 4 or 6 bulges corresponding to different adjusting nuts. Integrating the device on equipment on a hub assembly production line: the wheel hub assembly to be assembled enters the working area of the device, and the device automatically falls down and floats on the wheel hub through the action of a machine tool. The device acts, firstly, the output shaft 10 drives the adjusting nut sleeve 6 to rotate, and the adjusting nut sleeve 6 is automatically matched with the adjusting nut 21 and drives the adjusting nut 21 to rotate. The initial torque of the adjusting nut 21 is small when rotating, the bush 22 may not coincide with the core-stopping sleeve 5, but with the increase of the torque of the adjusting nut 21, the bush 22 rotates under the friction force of the adjusting nut 21, so that the bush 22 coincides with the core-stopping sleeve 5. The adjustment nut sleeve 6 is rotated to a predetermined positional relationship, which is denoted as an initial 0 angle. The adjusting nut sleeve 6 is rotated by an angle alpha from the angle 0, so that the alignment of the adjusting nut and the tile sleeve is realized. For the adjusting nut 21 with 4 notches, as long as α=n×18° (n is a positive integer) is satisfied, it can be ensured that the tile sleeve 22 is aligned with a certain notch of the adjusting nut 21 under the condition that the bearing pre-tightening force requirement is satisfied; for the adjustment nut 21 with 6 slots, as long as α=n×12° (n is a positive integer) is satisfied, it can be ensured that a certain slot of the adjustment nut 21 is aligned with a certain slot of the adjustment nut 21 under the condition that the bearing pre-tightening force requirement is satisfied.
Preferably, the stop core 3 is provided with a first detection switch 7 for detecting whether the stop core 3 and the stop core sleeve 5 are completely matched. The first detection switch is a proximity switch, and the specific model is E2B-M12KS04-WP-B1 2M.
The output shaft 10 is preferably provided with a second detection switch 8 for detecting whether the adjustment nut 21 and the adjustment nut sleeve 6 are completely engaged with each other. The second detection switch is a proximity switch, and the specific model is E2B-M12KS04-WP-B1 2M.
Preferably, a sensor 2 for measuring torque is arranged on the electric tightening shaft 1, and the sensor 2 ensures the accuracy of torque application. The torque sensor model is TSE-300.
Preferably, an encoder for recording the position of the adjusting nut sleeve 21 is arranged in the servo motor 13.
The whole detection and control device of the sensor and the detection switch operates to replace manual control to adjust the rotation of the nut sleeve, so that the anastomosis accuracy is ensured, and the nut sleeve rotates in place. The specific principle is that firstly, the output shaft 10 drives the adjusting nut sleeve 6 to rotate, the adjusting nut sleeve 6 is automatically matched with the adjusting nut 21 and drives the adjusting nut 21 to rotate, and whether the adjusting nut 21 is completely matched or not can be detected through the second detection switch 8. The initial torque of the adjusting nut 21 is small when rotating, the bush 22 may not coincide with the core-stopping sleeve 5, but with the increase of the torque of the adjusting nut 21, the bush 22 rotates under the friction force of the adjusting nut 21, so that the bush 22 coincides with the core-stopping sleeve 5. Whether a complete match is detected by the first detection switch 7. The adjusting nut sleeve 6 continues to rotate until the detection of the predetermined position relation with the gear box by the detection switch 8, and the position of the adjusting nut sleeve 6 at this time is recorded by the encoder of the servo motor 13 and is recorded as an initial 0 angle. The torque applied by the adjustment nut 21 can be accurately measured by the sensor 2, and after a predetermined torque has been reached, the encoder of the servomotor 13 can be informed of how much the adjustment nut sleeve 6 has rotated in total after the predetermined torque has been reached. For the adjusting nut 21 with 4 notches, as long as α=n×18° (n is a positive integer) is satisfied, it can be ensured that a certain notch of the tile sleeve 22 and the remaining adjusting nut 21 are aligned under the condition that the bearing pre-tightening force requirement is satisfied; for the adjustment nut 21 with 6 slots, as long as α=n×12° (n is a positive integer) is satisfied, it can be ensured that a certain slot of the adjustment nut 21 is aligned with a certain slot of the adjustment nut 21 under the condition that the bearing pre-tightening force requirement is satisfied.
The tightening device with the function of aligning the anti-loosening notch has the advantages of simple and convenient operation, high reliability, high tightening precision and high degree of automation, can be integrated on special equipment on a hub assembly production line for use or is not limited to hub assembly, and can be applied to occasions with similar hub structures and the like which need the requirements of 'tile sleeve rotation stopping', 'nut tightening', 'notch alignment', and the like.
The foregoing list is only the preferred embodiments of the present invention. Obviously, the invention is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present invention.
Claims (8)
1. Wheel hub unit screws up device, its characterized in that: comprises a servo motor, a rotating shaft system, a stop core sleeve and an adjusting nut sleeve; the servo motor is connected with the rotating shaft system and drives the rotating shaft system to rotate, one end of the rotating shaft system is fixedly connected with an adjusting nut sleeve, and the adjusting nut sleeve is provided with a protrusion corresponding to the notch of the adjusting nut; the rotating shaft system is sleeved on the outer wall of the stop core, one end of the stop core, which is close to the adjusting nut sleeve, is fixedly connected with a stop core sleeve, and the stop core sleeve is provided with a bulge corresponding to the notch of the tile sleeve.
2. The hub unit tightening device according to claim 1, characterized in that: the rotary shaft system comprises an electric tightening shaft, a gear box and an output shaft, the servo motor is connected with the electric tightening shaft, the electric tightening shaft is in transmission connection with the output shaft through a gear in the gear box, the output end of the output shaft is fixedly connected with an adjusting nut sleeve, the output shaft is sleeved on the outer wall of the stop core, and the stop core penetrates through the output shaft and the gear box and extends upwards.
3. The hub unit tightening device according to claim 2, characterized in that: the gear box top sets up the fixing base, ends core upper portion and fixing base sliding connection, ends and is provided with the first detection switch that detects and ends whether core and the core sleeve of ending completely coincide on the core.
4. A hub unit tightening device as claimed in claim 3, wherein: the stop core and the stop core sleeve are connected through a driving square and a pin, the upper end of the stop core is provided with an external spline, the inner hole of the fixing seat is provided with an internal spline, and the external spline slides in the internal spline.
5. The hub unit tightening device according to claim 2, characterized in that: the output shaft is provided with a second detection switch for detecting whether the adjusting nut is completely matched with the adjusting nut sleeve.
6. The hub unit tightening device according to claim 2, characterized in that: and a sensor for measuring torque is arranged on the electric tightening shaft.
7. The hub unit tightening device according to claim 2, characterized in that: the output flange is connected with the output shaft through a spline, the output flange is provided with a pin, and the adjusting nut sleeve is connected to the output flange through the pin.
8. The hub unit tightening device according to claim 1 or 2, characterized in that: an encoder for recording the position of the adjusting nut sleeve is arranged in the servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811358656.5A CN109263406B (en) | 2018-11-15 | 2018-11-15 | Hub unit tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811358656.5A CN109263406B (en) | 2018-11-15 | 2018-11-15 | Hub unit tightening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109263406A CN109263406A (en) | 2019-01-25 |
| CN109263406B true CN109263406B (en) | 2023-05-23 |
Family
ID=65189038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811358656.5A Active CN109263406B (en) | 2018-11-15 | 2018-11-15 | Hub unit tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109263406B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3068385U (en) * | 1999-10-21 | 2000-05-12 | エス ケイ エフ メカン アーベー | Bearing device |
| CN101434030A (en) * | 2008-12-12 | 2009-05-20 | 电子科技大学 | Device for automatically screwing main flare nut and aligning hole |
| CN201891745U (en) * | 2010-11-17 | 2011-07-06 | 郑州精益达汽车零部件有限公司 | Locking structure of axle hub bearing |
| CN201998743U (en) * | 2011-02-14 | 2011-10-05 | 浙江万向精工有限公司 | Automobile hub bearing unit |
| CN203371997U (en) * | 2013-07-10 | 2014-01-01 | 宁波跃进汽车前桥有限公司 | Automobile wheel hub unit |
-
2018
- 2018-11-15 CN CN201811358656.5A patent/CN109263406B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3068385U (en) * | 1999-10-21 | 2000-05-12 | エス ケイ エフ メカン アーベー | Bearing device |
| CN101434030A (en) * | 2008-12-12 | 2009-05-20 | 电子科技大学 | Device for automatically screwing main flare nut and aligning hole |
| CN201891745U (en) * | 2010-11-17 | 2011-07-06 | 郑州精益达汽车零部件有限公司 | Locking structure of axle hub bearing |
| CN201998743U (en) * | 2011-02-14 | 2011-10-05 | 浙江万向精工有限公司 | Automobile hub bearing unit |
| CN203371997U (en) * | 2013-07-10 | 2014-01-01 | 宁波跃进汽车前桥有限公司 | Automobile wheel hub unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109263406A (en) | 2019-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101434030B (en) | Device for automatically screwing main flare nut and aligning hole | |
| CN107538209B (en) | Bolt locking device and control method thereof | |
| CN103512736B (en) | Front brake proving installation | |
| CN103934673A (en) | Numerical control electric screw driver based on static torque sensor, and control method | |
| CN201338185Y (en) | Main cone nut automatic tightening and hole aligning device | |
| CN209079552U (en) | A kind of hub unit device for screwing up | |
| CN112757209A (en) | Torque preset type intelligent electric sleeper bolt wrench | |
| CN203509913U (en) | Numerical control grinder workpiece main shaft | |
| CN109263406B (en) | Hub unit tightening device | |
| CN204612904U (en) | A kind of brake pedal stand | |
| CN109304600B (en) | Mounting tool for self-tapping thread bushing machine | |
| CN107191583B (en) | Driving wheel | |
| CN202469143U (en) | Torque control device of electric operator torque sensor | |
| CN102303300A (en) | Hydraulic retarder installation tool and installation method thereof | |
| CN109396817A (en) | A kind of winding device | |
| CN209407869U (en) | A kind of winding device | |
| CN204061781U (en) | Linear drives swing angle device | |
| CN210087746U (en) | Automatic locking device of revolving shaft | |
| CN204027590U (en) | A kind of erecting device for floating type sensor | |
| CN210707608U (en) | Automatic guided vehicle turns to detection mechanism | |
| CN203156328U (en) | Tightening machine for automobile hub bearing lock nut | |
| CN203639048U (en) | Gear transmission lifting device convenient to overhaul | |
| CN202937783U (en) | Gear set distance adjusting sleeve | |
| CN203259331U (en) | Device for detecting mechanical property of clock spring | |
| CN105353161A (en) | Rotary speed measurement device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |