CN204942442U - Bolt-type locking and positioning device - Google Patents
Bolt-type locking and positioning device Download PDFInfo
- Publication number
- CN204942442U CN204942442U CN201520637111.3U CN201520637111U CN204942442U CN 204942442 U CN204942442 U CN 204942442U CN 201520637111 U CN201520637111 U CN 201520637111U CN 204942442 U CN204942442 U CN 204942442U
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- lead screw
- screw assembly
- bolt
- pin
- positioning device
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Abstract
The utility model discloses a kind of bolt-type locking and positioning device, solve the element option difficulty of servo-hydraulic control, cost is high, complex structure and the high problem of rate of fault, its drip irrigation device is a kind of bolt-type locking and positioning device, include motor, transmission device, lead screw assembly, described motor includes output shaft, described output shaft passes through described transmission device by power transmission to described lead screw assembly, one end of described lead screw assembly is also provided with braking or unclamps the bolt-type braking device of described lead screw assembly, described bolt-type braking device includes the brake disc be fixedly connected on described lead screw assembly, be uniformly distributed in hinge last and the latch feature at described brake disc edge, described latch feature includes the key seat of the position of pin and fixing described pin, described pin is arranged on the movement locus of described hinge last, the insertion of the described pin of the external control of described pin and the power source extracted, reach the reliable technique effect in location.
Description
Technical field
The utility model belongs to and relates to locking and positioning device, relates to a kind of bolt-type locking and positioning device in particular.
Background technique
The working principle of tyre uniformity test device common is at present: be arranged on by tire to be detected on a main shaft being provided with lower wheel rim, main shaft rotates under the drive of actuating motor, the in addition upper wheel rim that arrange corresponding to lower wheel rim, upper wheel rim be arranged on one relative to main shaft can near or away from chuck assembly on, chuck assembly is when testing beginning, move integrally under powered attendant-controlled wheelchairs promotion, until upper wheel rim and tire to be detected compress and seal, the now wheel hub of wheel rim simulation tire installation up and down, by the effect to the tyre inflating simulation inner tube of a tyre, the regular loading wheel of a geometrical shape parallel with main-shaft axis is set installing the mechanism side of tire to be detected, load cell is installed in the rotating shaft of loading wheel, detect radial force and axial force that in the rotary course of tire belt dynamic load wheel, loading wheel bears, to provide tyre evenness laboratory data.On tyre uniformity test device, the wheel hub in actual use not only simulated by upper and lower wheel rim, and, because tire to be detected is that tubeless is arranged, thus, need upper and lower wheel rim to tire reliable sealing in whole test process, and by the pore of lower wheel rim, inside tires is inflated.
In prior art, for the press seal of upper and lower wheel rim, chuck assembly normally by controlling to be provided with upper wheel rim accurately moves to specified position to be stopped and reliably locking the sealing realized tire, conventional locking device ensures that overall chuck assembly maintains special position by the oil hydraulic cylinder of tyre pressure dwelling loop, four-bar linkage is coordinated to realize entering at any time and exiting operating mode of upper wheel rim by the pneumatic cylinder of chuck assembly inside, in tyre evenness detection experiment, the external force that chuck assembly bears is maximum can to 30 tons, therefore, drive the size of oil hydraulic cylinder very large, the impact that takes up space for integrated testability system is very large, and, hydraulic cylinder structure needs the pump of a cooperation relatively high power, thus the structure of documents 1 is adopted can to cause difficulty to Systematic selection element, in addition, higher owing to being applied to the positioning accuracy request of chuck assembly, thus whole hydraulic system all adopts hydraulic servo element to connect whole system, and total system is involved great expense, very responsive to environment, in addition, the leakage problem of hydraulic system no matter adopts all insoluble technical barrier of which kind of element, thus, adopts the leakage problem of the cylinder device of external pressure dwelling loop also to cause very large adverse effect to detection.
In common locking braking device, for the braking of revolving part, such as the structure the most general such as braking automobile, main shaft spline is formula brake disc, namely utilizes mechanical structure pushing piece to contact with outside bearing shell, and relies on the braking of power realization to revolving part therebetween.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model be to provide a kind of structure simple, brake bolt-type braking device fast.
For achieving the above object, the utility model provides following technological scheme: a kind of bolt-type locking and positioning device, include motor, transmission device, lead screw assembly, described motor includes output shaft, described output shaft passes through described transmission device by power transmission to described lead screw assembly, one end of described lead screw assembly is also provided with braking or unclamps the bolt-type braking device of described lead screw assembly, described bolt-type braking device includes the brake disc be fixedly connected on described lead screw assembly, be uniformly distributed in hinge last and the latch feature at described brake disc edge, described latch feature includes the key seat of the position of pin and fixing described pin, described pin is arranged on the movement locus of described hinge last, the insertion of the described pin of the external control of described pin and the power source extracted.
By adopting technique scheme, the described transmission device that moves through that motor exports imports lead screw assembly into, lead screw assembly is driven to move to appointment station, now, stop motor, lead screw assembly is made to lose driving, the pin controlled in described bolt-type break by described power source inserts described pin-and-hole, like this, the position of lead screw assembly is limited completely by described bolt-type break, and, when external force changes, may reversal trend be there is in lead screw assembly, now, when only having the shear strength of described pin to be cut off by external force lower than external force, reversion can be there is in described lead screw assembly, and the pin by selecting suitable material to make, it can bear the external force demand that shearing can meet 30 tons completely, thus, this locking and positioning mode is very reliable, in addition, by increasing number and the distribution situation of the pin-and-hole on described brake disc, the location of bolt-type break to described lead screw assembly can be adjusted easily.
The utility model is set to further: described lead screw assembly adopts ball screw pair.
By adopting technique scheme, the precision of described ball screw pair own can ensure accurate location and the locking of described bolt-type locking and positioning device.
The utility model is set to further: described power source adopts actuating motor.
By adopting technique scheme, described actuating motor is closed loop control motor, can realize the stepless control of the highi degree of accuracy of the move distance of described lead screw assembly.
Accompanying drawing explanation
Fig. 1 is the structural scheme of mechanism of the utility model bolt-type locking and positioning device;
Fig. 2 is the perspective view of bolt-type break.
Accompanying drawing illustrates: 1, motor; 2, adpting flange; 3, transmission device; 4, lead screw assembly; 5, output terminal; 6, break; 61, brake disc; 62, hinge last; 63, sell; 64, key seat.
Embodiment
Referring to figs. 1 through Fig. 2, the tire uniformity testing system embodiment of the utility model bolt-type locking and positioning device and this device of application is described further.
A kind of bolt-type locking and positioning device, include motor 1, transmission device 3, break 6 and lead screw assembly 4, wherein: motor 1 imports motion into transmission device 3 by adpting flange 2, motion is converted to stretching out and retracting of the final control output end 5 of rotary motion of lead screw assembly 4 by transmission device 3, lead screw assembly 4 is also provided with latch 63 formula braking device, latch 63 formula braking device includes the brake disc 61 be arranged on lead screw assembly 4, be uniformly distributed in latch 63 hole 62 on brake disc 61 edge, latch 63 hole 62 can be inserted and realize the pin 63 of braking and the pin 63 of pin 63 installation, latch 63 formula break 6 is applicable to being applied to the occasion of some needs at fixed position braking screw assembly 4, the actual action of external power source drive pin 63 on pin 63 when using, can realize fast, braking effect accurately.
It is to be noted, lead screw assembly 4 is preferably ball screw pair, motor 1 is coordinated to elect stepper motor 1 or actuating motor 1 as, like this, the revolution that motor 1 exports to facilitate, accurate adjustment, thus the revolution in the unit time making lead screw assembly 4 obtain is definite value and adjustable, such realization is to the accurate control of the outreach of output terminal 5, this system is utilized to instead of original Hydrauservo System, effectively reduce cost, avoid the series of problems brought because of hydraulic system simultaneously, such as system architecture is complicated, safeguard and overhaul the problem of inconvenience, adopt the transmission substrate hold-down function that this cover system can realize for tire simultaneously, be worth marketing.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a bolt-type locking and positioning device, it is characterized in that: include motor, transmission device, lead screw assembly, described motor includes output shaft, described output shaft passes through described transmission device by power transmission to described lead screw assembly, one end of described lead screw assembly is also provided with braking or unclamps the bolt-type braking device of described lead screw assembly, described bolt-type braking device includes the brake disc be fixedly connected on described lead screw assembly, be uniformly distributed in hinge last and the latch feature at described brake disc edge, described latch feature includes the key seat of the position of pin and fixing described pin, described pin is arranged on the movement locus of described hinge last, the insertion of the described pin of the external control of described pin and the power source extracted.
2. bolt-type locking and positioning device according to claim 1, is characterized in that: described lead screw assembly adopts ball screw pair.
3. bolt-type locking and positioning device according to claim 1, is characterized in that: described power source adopts actuating motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520637111.3U CN204942442U (en) | 2015-08-22 | 2015-08-22 | Bolt-type locking and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520637111.3U CN204942442U (en) | 2015-08-22 | 2015-08-22 | Bolt-type locking and positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942442U true CN204942442U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520637111.3U Active CN204942442U (en) | 2015-08-22 | 2015-08-22 | Bolt-type locking and positioning device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204942442U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439943A (en) * | 2018-05-04 | 2019-11-12 | 赛峰起落架系统公司 | Locking device with pulse controlled rotary lock |
| CN111998024A (en) * | 2020-09-08 | 2020-11-27 | 张军 | Automatic brake locking device of oil pumping unit |
| CN114645917A (en) * | 2022-01-29 | 2022-06-21 | 北京航天发射技术研究所 | Dynamic mechanism braking locking device and method under impact action |
-
2015
- 2015-08-22 CN CN201520637111.3U patent/CN204942442U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439943A (en) * | 2018-05-04 | 2019-11-12 | 赛峰起落架系统公司 | Locking device with pulse controlled rotary lock |
| CN110439943B (en) * | 2018-05-04 | 2021-02-26 | 赛峰起落架系统公司 | Locking device with pulse controlled rotary lock |
| CN111998024A (en) * | 2020-09-08 | 2020-11-27 | 张军 | Automatic brake locking device of oil pumping unit |
| CN114645917A (en) * | 2022-01-29 | 2022-06-21 | 北京航天发射技术研究所 | Dynamic mechanism braking locking device and method under impact action |
| CN114645917B (en) * | 2022-01-29 | 2024-04-05 | 北京航天发射技术研究所 | Dynamic mechanism braking locking device and method under impact action |
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| GR01 | Patent grant |