CN203035815U - Braking device of eccentric rotary table - Google Patents
Braking device of eccentric rotary table Download PDFInfo
- Publication number
- CN203035815U CN203035815U CN 201220725349 CN201220725349U CN203035815U CN 203035815 U CN203035815 U CN 203035815U CN 201220725349 CN201220725349 CN 201220725349 CN 201220725349 U CN201220725349 U CN 201220725349U CN 203035815 U CN203035815 U CN 203035815U
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- CN
- China
- Prior art keywords
- end cap
- left end
- body shell
- braking device
- oilhole
- 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.)
- Expired - Lifetime
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Abstract
Disclosed is a braking device of an eccentric rotary table. The left end of a shell is connected with a left end cap, the right end of the shell is connected with a right end cap, a rotating shaft is connectedly sleeved inside the shell, a rotating block is fixed on the rotating shaft, a gap is reserved between the rotating block and the inner wall of the shell, a fixed block for preventing the rotating block from rotation is fixed on the inner wall of the shell, a gap is reserved between the fixed block and the rotating shaft, the fixed block, the rotating block, the left end cover and the right end cover form two volume-variable chambers, a first oil hole and a second oil hole are arranged on the left end cover, the first oil hole is communicated with one chamber, the second oil hole is communicated with the other chamber, an oil tube is arranged outside the shell and provided with an electromagnetic valve, and one end of the oil tube is connected with the first oil hole while the other end thereof is connected with the second oil hole. By the braking device of the eccentric rotary table, braking time can be prolonged effectively, and quick braking of the rotary table is achieved. Besides, the braking device has the advantages of reasonable design, simple structure and remarkable braking effect.
Description
Technical field
The utility model relates to a kind of braking device, is specifically related to a kind of braking device of eccentric turntable.
Background technique
Revolving plate clamping device is one of field of machining usual means, in order to turntable is braked.Generally include the body shell, the left and right sides end cap that links to each other with the body shell fixedly has fixed block at the body shell, and moving block is fixedly arranged in the rotating shaft, and solenoid valve links to each other with two oilholes on the left end cap by oil pipe and pipe joint, is full of oil in body shell and the oil pipe.When turntable had eccentric load, if run out of steam in rotation process, because the effect of load, turntable can deflect, and causes unexpected mechanical failure.At present, normally brake by the device that steps up of hydraulic pressure related domain, yet, the stepping up because the influence of pipeline of hydraulic pressure, boosting needs the regular hour.Stepping up to move has hysteresis about 1 second with respect to instruction, can not satisfy the needs of turntable emergency braking, and related domain is needed a kind of new technological scheme badly and solved this difficult problem.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of braking device of eccentric turntable, can effectively solve the problem of turntable fast braking, has reasonable in design, simple in structure, braking effect outstanding feature.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of braking device of eccentric turntable, be connected with left end cap 14 at body shell 1 left end, right-hand member is connected with right end cap 4, body shell 1 internal sleeve is switched through axle 13, moving block 5 is fixedly arranged in the rotating shaft 13, leave the slit between moving block 5 and body shell 1 inwall, the fixed block 7 that stops moving block 5 to rotate is fixedly arranged on body shell 1 inwall, leave the slit between fixed block 7 and the rotating shaft 13, fixed block 7, moving block 5 and left end cap 14, right end cap 4, body shell 1 forms two variable-volume chambers, have first oilhole 12 and second oilhole, 16, the first oilholes 12 to be communicated with one of them chamber at left end cap 14, second oilhole 16 is communicated with wherein another chamber, oil pipe 10 is set outside body shell 1, one termination, first oilhole 12 of oil pipe 10, another termination second oilhole 16, oil pipe 10 is provided with solenoid valve 11.
Described fixed block 7 is 0.005-0.02mm with rotating shaft 13 slits, and the slit is 0.005-0.02mm between moving block 5 and the body shell 1.
Gap between described moving block 5 and left end cap 14, the right end cap 4 is 0.005-0.01mm.
The switch of described solenoid valve 11 and the switch gearing of eccentric turntable, and share one road power supply.
Compared with prior art, because the utility model adopted cutoff circuit to make enclosed cavity liquid bear the technological scheme of braking force, can effectively improve period of braking, reach the turntable fast braking purpose.Use this device at the five-axle linked blade grinding machine, the period of braking of grinding tool swing axis, when being stepped up by original hydraulic pressure 1 ~ 1.5 second reduces to 0.5 ~ 0.8 second, the timely braking problem fast of turntable during determined outer the running out of steam of efficient solution.
The technical solution of the utility model not only is suitable for the braking of turntable, also is fit to the similar mechanical device of needs braking.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the right elevation of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further details.
Embodiment one
As attached illustrated in figures 1 and 2, a kind of concrete structure for the braking device of the eccentric turntable of the utility model is connected with left end cap 14 at body shell 1 left end by first screw 15, and right-hand member is connected with right end cap 4 by second screw 3, and seal ring 2 is set guarantees sealing.Body shell 1 internal sleeve is switched through axle 13, and the rotating part of rotating shaft 13 and eccentric turntable is connected.By the 3rd screw 6 moving block 5 is arranged fixedly in the rotating shaft 13, leave the wide slit of 0.005mm between moving block 5 and body shell 1 inwall, and leave the wide slit of 0.005mm between the left end cap 14, right end cap 4.By the 4th screw 8 fixed block 7 that stops moving block 5 to rotate is arranged fixedly on body shell 1 inwall, leave the wide slit of 0.005mm between fixed block 7 and the rotating shaft 13, fixed block 7, moving block 5 and left end cap 14, right end cap 4, body shell 1 form two variable-volume chambers, at left end cap 14 first oilhole 12 and second oilhole 16 are arranged, first oilhole 12 is communicated with one of them chamber, second oilhole 16 is communicated with wherein another chamber, oil pipe 10 is set outside body shell 1, one termination, first oilhole 12 of oil pipe 10, another termination second oilhole 16, jointing is provided with pipe joint 9.Oil pipe 10 is provided with solenoid valve 11, and the switch of solenoid valve 11 and the switch gearing of eccentric turntable are worked simultaneously, and shares one road power supply.
Embodiment two
Be with embodiment's one difference, leave the wide slit of 0.02mm between moving block 5 and body shell 1 inwall, and leave the wide slit of 0.01mm between the left end cap 14, right end cap 4.Leave the wide slit of 0.02mm between fixed block 7 and the rotating shaft 13.
Embodiment three
Be with embodiment's one difference, leave the wide slit of 0.01mm between moving block 5 and body shell 1 inwall, and leave the wide slit of 0.01mm between the left end cap 14, right end cap 4.Leave the wide slit of 0.01mm between fixed block 7 and the rotating shaft 13.
Working principle of the present utility model is:
With reference to accompanying drawing, when eccentric turntable was worked, solenoid valve 11 was opened simultaneously, is full of oil among oil pipe 10 and body shell 1.Moving block 5 and rotating shaft 13 are moved with eccentric turntable.Because the effect of eccentric load can deflect when turntable runs out of steam.When running out of steam, solenoid valve 11 cuts out, and disconnects oil circuit, and the both sides of moving block 5 form independently oil-overflow enclosed cavity, and enclosed cavity has born the deflecting torque of turntable eccentric load, thereby eccentric turntable is in time braked.
Claims (4)
1. the braking device of an eccentric turntable, be connected with left end cap (14) at body shell (1) left end, right-hand member is connected with right end cap (4), body shell (1) internal sleeve is switched through axle (13), it is characterized in that, rotating shaft (13) is gone up fixedly moving block (5), leave the slit between moving block (5) and body shell (1) inwall, the fixed block (7) that fixedly has prevention moving block (5) to rotate on body shell (1) inwall, leave the slit between fixed block (7) and the rotating shaft (13), fixed block (7), moving block (5) and left end cap (14), right end cap (4), body shell (1) forms two variable-volume chambers, at left end cap (14) first oilhole (12) and second oilhole (16) are arranged, first oilhole (12) is communicated with one of them chamber, second oilhole (16) is communicated with wherein another chamber, oil pipe (10) is set, a termination first oilhole (12) of oil pipe (10) outside body shell (1), another termination second oilhole (16), oil pipe (10) is provided with solenoid valve (11).
2. according to the braking device of the described eccentric turntable of claim 1, it is characterized in that described fixed block (7) is 0.005-0.02mm with rotating shaft (13) slit, the slit is 0.005-0.02mm between moving block (5) and the body shell (1).
3. according to the braking device of the described eccentric turntable of claim 1, it is characterized in that the gap between described moving block (5) and left end cap (14), the right end cap (4) is 0.005-0.01mm.
4. according to the braking device of the described eccentric turntable of claim 1, it is characterized in that, the switch of described solenoid valve (11) and the switch gearing of eccentric turntable, and share one road power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725349 CN203035815U (en) | 2012-12-25 | 2012-12-25 | Braking device of eccentric rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725349 CN203035815U (en) | 2012-12-25 | 2012-12-25 | Braking device of eccentric rotary table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035815U true CN203035815U (en) | 2013-07-03 |
Family
ID=48687944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220725349 Expired - Lifetime CN203035815U (en) | 2012-12-25 | 2012-12-25 | Braking device of eccentric rotary table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035815U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084214A (en) * | 2017-05-05 | 2017-08-22 | 中国科学院长春光学精密机械与物理研究所 | A kind of rotation preventive mechanism of rotary shaft |
| CN113685463A (en) * | 2021-08-27 | 2021-11-23 | 张丽 | Rotating shaft locking mechanism for mechanical design |
-
2012
- 2012-12-25 CN CN 201220725349 patent/CN203035815U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084214A (en) * | 2017-05-05 | 2017-08-22 | 中国科学院长春光学精密机械与物理研究所 | A kind of rotation preventive mechanism of rotary shaft |
| CN113685463A (en) * | 2021-08-27 | 2021-11-23 | 张丽 | Rotating shaft locking mechanism for mechanical design |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: QINCHUAN MACHINE TOOL GROUP CO., LTD. Free format text: FORMER NAME: QINCHUAN MACHINERY DEVELOPMENT CO LTD, SHAANXI PROV |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 721009, 22 Tan Tan Road, Shaanxi, Baoji Patentee after: QINCHUAN MACHINE TOOL GROUP CO.,LTD. Address before: 721009, 22 Tan Tan Road, Shaanxi, Baoji Patentee before: Shaanxi Qinchuan Machinery Development Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |