CN103322972B - Shaft system locking device - Google Patents
Shaft system locking device Download PDFInfo
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- CN103322972B CN103322972B CN201310280201.7A CN201310280201A CN103322972B CN 103322972 B CN103322972 B CN 103322972B CN 201310280201 A CN201310280201 A CN 201310280201A CN 103322972 B CN103322972 B CN 103322972B
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Abstract
The invention provides a shaft system locking device, belongs to the technical field of shaft system locking, and aims at solving the problems that the existing device has a complex structure and poor reliability. The device is characterized in that a left shaft hoop and a right shaft hoop are respectively fixedly connected with right rotary nuts and left rotary nuts of an upper screw rod and a lower screw rod, an upper driven gear is fixed on the upper screw rod, a lower driven gear is fixed on the lower screw rod, and a driving gear is meshed with the upper driven gear and the lower driven gear at the same time; the rotation of an operating handle drives the upper screw rod and the lower screw rod to rotate synchronously through a gear transmission mechanism, so as to further drive the left shaft hoop and the right shaft hoop to do opposite movement or back movement at the same time, so as to realize locking or loosening of a rotating shaft. According to the shaft system locking device, rubber blankets are arranged on the contact part of the left shaft hoop and the rotating shaft and the contact part of the right shaft hoop and the rotating shaft, so that the face-to-face contact is realized, the locking of a shaft system is reliable, and meanwhile, a faulty operation protection function is realized; during one cycle of rotation of the operating handle, the reliable locking and the thorough separation of the left shaft hoop and the right shaft hoop to the rotating shaft can be realized.
Description
Technical field
The invention belongs to axle system locking technical field, be specifically related to a kind of axle system locking device for the locking of big-and-middle-sized transit horizontal shafting optional position.
Background technology
Tradition transit adopts a set of worm-and-wheel gear to realize the locking of horizontal shafting optional position; Publication number is that the Chinese patent of CN2736805 discloses a key name and is called the locking fine setting of horizontal shafting and the technical scheme of tripper, and this device utilizes the self-lock mechanism of worm and gear, realizes the locking of horizontal shafting optional position; But on transit in use procedure, must could realize worm screw and transverse axis disengagement by a set of tripper, and then realize freely turning round of horizontal shafting; This device not only complex structure, poor reliability, and very easily occur throwing off not thoroughly phenomenon; Further, when horizontal shafting is in the lock state, once occur that horizontal shafting is turned round in maloperation by force or horizontal shafting runs into enormous impact in transportation, will does great damage to locking device and tripper thereof, even make it lose efficacy.
Summary of the invention
The object of the invention is to propose a kind of axle system locking device, solve the mechanical locking complex structure of prior art existence and the problem of poor reliability, there is fault-operation protection function.
For achieving the above object, a kind of axle system of the present invention locking device comprises leading screw, lower leading screw, the first left-hand threaded nut, the second left-hand threaded nut, the first right-handed nut, the second right-handed nut, left shaft clip, right shaft clip, driving gear, driving gear shaft, upper follower gear, lower follower gear, operating grip;
Described upper leading screw and lower leading screw are symmetrically arranged with left-handed and dextrorotation two sections of screw threads respectively, the left hand thread engagement of described first left-hand threaded nut and described upper leading screw, the left hand thread engagement of described second left-hand threaded nut and described lower leading screw, described first right-handed nut coordinates with the right-hand thread of described upper leading screw, described second right-handed nut coordinates with the right-hand thread of described lower leading screw, the top and bottom of described left shaft clip are connected with the first right-handed nut and the second right-handed nut respectively, the top and bottom of described right shaft clip are connected with the first left-hand threaded nut and the second left-hand threaded nut respectively, described upper follower gear is fixed on described upper leading screw, described lower follower gear is fixed on described lower leading screw, described upper follower gear is identical with the pitch diameter of described lower follower gear, described driving gear shaft one end is fixedly connected with driving gear, the other end is fixedly connected with described operating grip through the column of transit, described driving gear simultaneously with on engage from gear and lower follower gear, described operating grip rotates through gear drive and drives described upper leading screw and described lower screw synchronous to rotate, and then drive described left shaft clip and described right shaft clip in opposite directions or opposing motion simultaneously, realization is to the locking of revolving shaft or unclamp.
Described left shaft clip is identical with the structure of described right shaft clip, and described right shaft clip is provided with U-shaped link slot, rubber blanket groove and nut connecting hole; Described U-shaped link slot coordinates with the second left-hand threaded nut with described first left-hand threaded nut respectively and contacts, and is threaded with described first left-hand threaded nut and the second left-hand threaded nut by nut connecting hole; Described right shaft clip is contacted with revolving shaft by the rubber blanket of rubber blanket groove internal fixtion.
Described locking device also comprises deep groove ball bearing, bearing gland, circlip and taper bolt; Described upper leading screw, lower leading screw are all connected with circlip and column by deep groove ball bearing, bearing gland mutually with driving gear shaft, and described upper leading screw, lower leading screw and driving gear shaft are parallel to each other.
Left-hand thread (LHT) on the upper and lower leading screw of described upper leading screw is identical with pitch with the thread form of right-hand thread.
Driving gear and operating grip are connected in the two ends of driving gear shaft respectively by taper bolt, and upper follower gear is connected on upper leading screw by taper bolt, and lower follower gear is connected on lower leading screw by taper bolt.
Beneficial effect of the present invention is: the upper leading screw of a kind of axle system of the present invention locking device and lower leading screw respectively have left-hand thread (LHT) and right-hand thread, thread form, pitch are identical, symmetrical, when upper leading screw and lower leading screw under the effect at pinion rotation during synchronous revolving, indirectly drive left shaft clip and right shaft clip in opposite directions or opposing motion by left-hand threaded nut and right-handed nut, realization is to the locking of revolving shaft or unclamp, and makes axle system rest on optional position; Left shaft clip and right shaft clip and revolving shaft contact position are provided with rubber blanket, achieve the plane-plane contact of lock-out state bottom left shaft clip and right shaft clip and revolving shaft, and make the locking of axle system more reliable, shaft has fault-operation protection function simultaneously; Driving gear pitch diameter is 2.4 times of upper follower gear and lower follower gear, in operating grip returns and circles, can realize left shaft clip and right shaft clip to the positive lock of revolving shaft with thoroughly throw off, easy to operate.
Accompanying drawing explanation
Fig. 1 is the shape assumption diagram of axle system of the present invention locking device;
Fig. 2 is the structural drawing of axle system of the present invention locking device at locking state;
Fig. 3 is the structural drawing of axle system of the present invention locking device at releasing orientation;
Fig. 4 is the structural representation of the left shaft clip in axle system of the present invention locking device;
Wherein: 1, column, the 2, second left-hand threaded nut, 3, lower follower gear, 4, circlip, 5, lower leading screw, 6, bearing gland, 7, taper bolt, 8, driving gear, 9, operating grip, 10, driving gear shaft, 11, deep groove ball bearing, 12, upper follower gear, 13, right shaft clip, 14, upper leading screw, the 15, first left-hand threaded nut, the 16, first right-handed nut, 161, shaft clip mounting hole, 17, rubber blanket, 18, left shaft clip, 19, revolving shaft, 20, the second right-handed nut, 131, U-shaped link slot, 132, rubber blanket groove, 133, nut connecting hole.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
Embodiment one:
See accompanying drawing 1, a kind of axle system of the present invention locking device comprises leading screw 14, lower leading screw 5, first left-hand threaded nut 15, second left-hand threaded nut 2, first right-handed nut 16, second right-handed nut 20, left shaft clip 18, right shaft clip 13, driving gear 8, driving gear shaft 10, upper follower gear 12, lower follower gear 3, operating grip 9;
Described upper leading screw 14 and lower leading screw 5 are symmetrically arranged with left-handed and dextrorotation two sections of screw threads respectively, the left hand thread engagement of described first left-hand threaded nut 15 and described upper leading screw 14, the left hand thread engagement of described second left-hand threaded nut 2 and described lower leading screw 5, described first right-handed nut 16 coordinates with the right-hand thread of described upper leading screw 14, described second right-handed nut 20 coordinates with the right-hand thread of described lower leading screw 5, the top and bottom of described left shaft clip 18 are connected with the first right-handed nut 16 and the second right-handed nut 20 respectively, the top and bottom of described right shaft clip 13 are connected with the first left-hand threaded nut 15 and the second left-hand threaded nut 2 respectively, described upper follower gear 12 is fixed on described upper leading screw 14, described lower follower gear 3 is fixed on described lower leading screw 5, described upper follower gear 12 is identical with the pitch diameter of described lower follower gear 3, described driving gear shaft 10 one end is fixedly connected with driving gear 8, the other end is fixedly connected with described operating grip 9 through the column 1 of transit, described driving gear 8 simultaneously with on engage from gear and lower follower gear 3, described operating grip 9 rotates through driving gear shaft 10 and drives driving gear 8 to rotate, described driving gear 8 drives described upper follower gear 12 and described lower follower gear 3 to rotate, and then drive upper leading screw 14 and described lower leading screw 5 synchronous axial system, described left shaft clip 18 and described right shaft clip 13 is driven simultaneously in opposite directions or opposing motion by the cooperation of feed screw nut, realization is to the locking of revolving shaft 19 or unclamp.
See accompanying drawing 4, described left shaft clip 18 is identical with the structure of described right shaft clip 13, and described right shaft clip 13 is provided with U-shaped link slot 131, rubber blanket groove 132 and nut connecting hole 133; Described U-shaped link slot 131 coordinates with the second left-hand threaded nut 2 with described first left-hand threaded nut 15 respectively and contacts, and is threaded connection by the shaft clip mounting hole 161 of nut connecting hole 133 with described first left-hand threaded nut 15 and the second left-hand threaded nut 2; Described right shaft clip 13 is contacted with revolving shaft 19 by the rubber blanket 17 of rubber blanket groove 132 internal fixtion.
Described locking device also comprises deep groove ball bearing 11, bearing gland 6, circlip 4 and taper bolt 7; Described upper leading screw 14, lower leading screw 5 and driving gear shaft 10 are all connected with circlip 4 and column 1 mutually by deep groove ball bearing 11, bearing gland 6, and described upper leading screw 14, lower leading screw 5 and driving gear shaft 10 are parallel to each other.
Left-hand thread (LHT) on the upper and lower leading screw of described upper leading screw 14 5 is identical with pitch with the thread form of right-hand thread.
Driving gear 8 and operating grip 9 are connected in the two ends of driving gear shaft 10 respectively by taper bolt 7, and upper follower gear 12 is connected on upper leading screw 14 by taper bolt 7, and lower follower gear 3 is connected on lower leading screw 5 by taper bolt 7.
The pitch diameter of upper follower gear 12 and lower follower gear 3 is 1/2.4 of driving gear 8, when operating grip 9 turns round 300 °, the revolution 720 ° separately of upper leading screw 14 and lower leading screw 5, left shaft clip 18 and right shaft clip 13 respectively under the drive of the first right-handed nut 16, second right-handed nut 20 and the first left-hand threaded nut 15, second left-hand threaded nut 2 in opposite directions or the pitch of opposing each motion 2 feed screw nuts, to realize the positive lock of revolving shaft 19 or thoroughly to unclamp.
When utilizing the present invention that revolving shaft 19 is implemented to locking or unclamped, detailed process is: see accompanying drawing 2, device is in the lock state; Now, stirring operating grip 9 clockwise makes it turn round 300 °, upper leading screw 14, lower leading screw 5 be turning anticlockwise 720 ° under gear-driven drive, left shaft clip 18, right shaft clip 13 be the pitch of opposing each movement 2 feed screw nuts under the drive of the first right-handed nut 16, second right-handed nut 20 and the first left-hand threaded nut 15, second left-hand threaded nut 2 respectively, realize left shaft clip 18, right shaft clip 13 and the thorough disengagement of revolving shaft 19, make device reach releasing orientation.
See accompanying drawing 3, device is in releasing orientation.Now, stirring operating grip 9 counterclockwise makes it turn round 300 °, upper leading screw 14, lower leading screw 5 be revolution 720 ° clockwise under gear-driven drive, left shaft clip 18, right shaft clip 13 be the pitch of each in opposite directions movement 2 feed screw nuts under the drive of the first right-handed nut 16, second right-handed nut 20 and the first left-hand threaded nut 15, second left-hand threaded nut 2 respectively, realize the reliable locking of left shaft clip 18, right shaft clip 13 pairs of revolving shaftes 19, make device reach lock-out state.
Embodiment two:
The difference of the present embodiment and embodiment one is: the pitch diameter of upper follower gear 12 and lower follower gear 3 is 1/3.6 of driving gear 8, when operating grip 9 turns round 300 °, the revolution 1080 ° separately of upper leading screw 14 and lower leading screw 5, left shaft clip 18 and right shaft clip 13 under the drive of the first right-handed nut 16, second right-handed nut 20 and the first left-hand threaded nut 15 and the second left-hand threaded nut 2 in opposite directions or the pitch of opposing each motion 3 feed screw nuts, to realize the positive lock of revolving shaft 19 or thoroughly to unclamp.
Be more than the specific embodiment of the present invention, but limitation of the present invention absolutely not.
Claims (4)
1. an axle system locking device, it is characterized in that, comprise leading screw (14), lower leading screw (5), the first left-hand threaded nut (15), the second left-hand threaded nut (2), the first right-handed nut (16), the second right-handed nut (20), left shaft clip (18), right shaft clip (13), driving gear (8), driving gear shaft (10), upper follower gear (12), lower follower gear (3), operating grip (9);
Described upper leading screw (14) and lower leading screw (5) are symmetrically arranged with left-handed and dextrorotation two sections of screw threads respectively, the left hand thread engagement of described first left-hand threaded nut (15) and described upper leading screw (14), the left hand thread engagement of described second left-hand threaded nut (2) and described lower leading screw (5), described first right-handed nut (16) coordinates with the right-hand thread of described upper leading screw (14), described second right-handed nut (20) coordinates with the right-hand thread of described lower leading screw (5), the top and bottom of described left shaft clip (18) are connected with the first right-handed nut (16) and the second right-handed nut (20) respectively, the top and bottom of described right shaft clip (13) are connected with the first left-hand threaded nut (15) and the second left-hand threaded nut (2) respectively, described upper follower gear (12) is fixed on described upper leading screw (14), described lower follower gear (3) is fixed on described lower leading screw (5), described upper follower gear (12) is identical with the pitch diameter of described lower follower gear (3), described driving gear shaft (10) one end is fixedly connected with driving gear (8), the other end is fixedly connected with described operating grip (9) through the column (1) of transit, described driving gear (8) simultaneously with on engage from gear and lower follower gear (3), rotate described operating grip (9), thus drive described upper leading screw (14) and described lower leading screw (5) synchronous axial system by gear drive, and then drive described left shaft clip (18) and described right shaft clip (13) in opposite directions or opposing motion simultaneously, realization is to the locking of revolving shaft (19) or unclamp.
2. a kind of axle system according to claim 1 locking device, it is characterized in that, described left shaft clip (18) is identical with the structure of described right shaft clip (13), and described right shaft clip (13) is provided with U-shaped link slot (131), rubber blanket groove (132) and nut connecting hole (133); Described U-shaped link slot (131) coordinates with the second left-hand threaded nut (2) with described first left-hand threaded nut (15) respectively and contacts, and is threaded with described first left-hand threaded nut (15) and the second left-hand threaded nut (2) by nut connecting hole (133); Described right shaft clip (13) is contacted with revolving shaft (19) by the rubber blanket (17) of rubber blanket groove (132) internal fixtion.
3. a kind of axle system according to claim 1 locking device, is characterized in that, described locking device also comprises deep groove ball bearing (11), bearing gland (6), circlip (4) and taper bolt (7); Described upper leading screw (14), lower leading screw (5) and driving gear shaft (10) are all connected with circlip (4) and column (1) mutually by deep groove ball bearing (11), bearing gland (6), and described upper leading screw (14), lower leading screw (5) and driving gear shaft (10) are parallel to each other; Driving gear (8) and operating grip (9) are connected in the two ends of driving gear shaft (10) respectively by taper bolt (7), upper follower gear (12) is connected on upper leading screw (14) by taper bolt (7), and lower follower gear (3) is connected on lower leading screw (5) by taper bolt (7).
4. a kind of axle system according to claim 1 locking device, it is characterized in that, the left-hand thread (LHT) on the upper and lower leading screw of described upper leading screw (14) (5) is identical with pitch with the thread form of right-hand thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310280201.7A CN103322972B (en) | 2013-07-04 | 2013-07-04 | Shaft system locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310280201.7A CN103322972B (en) | 2013-07-04 | 2013-07-04 | Shaft system locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103322972A CN103322972A (en) | 2013-09-25 |
| CN103322972B true CN103322972B (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310280201.7A Active CN103322972B (en) | 2013-07-04 | 2013-07-04 | Shaft system locking device |
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| CN (1) | CN103322972B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052635B (en) * | 2016-05-24 | 2018-07-06 | 中国科学院长春光学精密机械与物理研究所 | A kind of shafting locking device |
| CN113001634B (en) * | 2021-02-06 | 2022-10-25 | 深圳市慧珑科技有限公司 | Special-shaped plate cutting device and method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3104386B2 (en) * | 1992-03-10 | 2000-10-30 | 株式会社ニコン | Surveying instrument |
| JP2001001702A (en) * | 1999-06-23 | 2001-01-09 | Sumitomo Constr Mach Co Ltd | Drive wheel mounting device in compacting equipment |
| CN2736805Y (en) * | 2004-10-27 | 2005-10-26 | 中国科学院西安光学精密机械研究所 | Locking fine adjustment and unlocking device for horizontal shaft system |
| CN201611255U (en) * | 2010-01-12 | 2010-10-20 | 宁波湛京光学仪器有限公司 | Theodolite |
| US8418283B2 (en) * | 2010-05-10 | 2013-04-16 | Drive Medical Design & Mfg. | Universal bed system |
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2013
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| CN103322972A (en) | 2013-09-25 |
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Effective date of registration: 20170927 Address after: 130000 E2296 room, No. 1759, Mingxi Road, Gaoxin North District, Jilin, Changchun Patentee after: Changchun Optical Precision Instrument Group Co. Ltd. Address before: 130033 southeast Lake Road, Jilin, Changchun, No. 3888 Patentee before: Changchun Inst. of Optics and Fine Mechanics and Physics, Chinese Academy of Sci |
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Effective date of registration: 20181114 Address after: 130000 No.1 Building, Incubation Base, 77 Yingkou Road, Changchun Economic Development Zone, Jilin Province Patentee after: Chang Guang Huada gene sequencing equipment (Changchun) Co., Ltd. Address before: 130000 room E2296, 1759 Mingxi Road, north new high tech, Changchun, Jilin. Patentee before: Changchun Optical Precision Instrument Group Co. Ltd. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 130000 No.1 Building, Incubation Base, 77 Yingkou Road, Changchun Economic Development Zone, Jilin Province Patentee after: Changchun Changguang Huada Zhizao sequencing Equipment Co.,Ltd. Address before: 130000 No.1 Building, Incubation Base, 77 Yingkou Road, Changchun Economic Development Zone, Jilin Province Patentee before: CHANGGUANG HUADA GENE SEQUENCING EQUIPMENT (CHANGCHUN) Co.,Ltd. |