CN203759578U - Crank sliding block type hand-wheel mechanism - Google Patents
Crank sliding block type hand-wheel mechanism Download PDFInfo
- Publication number
- CN203759578U CN203759578U CN201420188478.7U CN201420188478U CN203759578U CN 203759578 U CN203759578 U CN 203759578U CN 201420188478 U CN201420188478 U CN 201420188478U CN 203759578 U CN203759578 U CN 203759578U
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- China
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- screw rod
- wheel mechanism
- block type
- bent axle
- nut
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- Withdrawn - After Issue
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Abstract
The utility model provides a crank sliding block type hand-wheel mechanism. The crank sliding block type hand-wheel mechanism is prepared by assembling a hand wheel, a screw rod, guide blocks, an eccentric ring, a lead screw nut, a crank, a connecting plate, limiting nuts, a lead screw shaft sleeve, a box body and a box cover; the end part of the screw rod is positioned in the same acting axis as a hole formed in the center of the hand wheel, and the end part of the screw rod is connected with the hole and fixed by virtue of a round pin; after being pinned by a fixing ring with plane needle bearings at two ends, the screw rod is compressed to be located to the box body by virtue of an end cover of the box body; two guide blocks which are respectively fixed to the box body and the box cover are connected to the upper end and lower end of the lead screw nut; the lead screw nut is connected with the connecting plate by virtue of the eccentric ring; the initial position of the crank can be adjusted by rotating the eccentric ring; a first limiting nut and a second limiting nut are arranged on the screw rod according to the opening and closing positions of the lead screw nut and then are pinned to prevent the hand-wheel mechanism from being excessively started and stopped. The crank sliding block type hand-wheel mechanism has the characteristics of being high in strength, stable in transmission, large in output torque, high in transmission efficiency, long in service life, outstanding in cost performance, and the like.
Description
Technical field
The utility model relates to the hand rotary drive unit in manual control system, is specifically related to a kind of bent axle slide block type hand wheel mechanism.
Background technology
Along with scientific and technical development, robotization control has become a kind of trend, but because robotization control conventionally needs higher input, thus in part to the less demanding occasion of control accuracy, manually control be still a kind of simple and reliable, the selection of high performance-price ratio.
Existing handwheel adopts Worm-gear type handwheel conventionally.Its shortcoming is as follows: transmission efficiency is low, wearing and tearing are more serious, and when worm and gear engaged transmission, the relative sliding velocity of meshing wheel between cog is large, therefore frictional dissipation is large, efficiency is low.On the other hand, relative sliding velocity ambassador tooth surface abrasion is serious, heating is serious, in order to dispel the heat and to reduce wearing and tearing, often adopt antifriction quality and the good material of resistance to abrasion and good lubricating system that price is comparatively expensive, thereby cost is higher.
Summary of the invention
The utility model is mainly for improving existing Worm-gear type handwheel, and serviceable life is short, and cost is high, inconvenient defect is safeguarded in processing, and 90 ° of bent axle slide block type hand wheel mechanisms that a kind of combination property is superior are provided, and has reliability high, long service life, easily processing, the advantage that cost performance is high.
The purpose of this utility model is mainly achieved by following proposal: a kind of bent axle slide block type hand wheel mechanism, comprise that handwheel, screw rod, orienting lug, eccentric hoop, feed screw nut, bent axle, web joint, stop nut, screw mandrel axle sleeve, casing and cover structure are assembled: the hole that described screw rod end and handwheel center are provided with is positioned in same force axis, screw rod end is connected with hole, is then fixed by straight pin; Described screw rod is arranged behind the set collar pin position of plane needle bearing by two ends, is pressed on casing and positions together by housing plate; The upper/lower terminal of described feed screw nut connects two orienting lugs, and orienting lug is separately fixed on casing and case lid; Described feed screw nut is connected by eccentric hoop with web joint, and the rotation of eccentric hoop can realize the adjustment of bent axle initial position; On described screw rod, open and close position according to feed screw nut the first stop nut and the second stop nut pin are set respectively, prevent that handwheel from opening and closing position.
As preferably, described screw rod and feed screw nut are by the secondary carry-over moment of acme thread.
Described stop nut, and is fixed with straight pin for being threaded with screw rod.
Two places that described screw rod contacts with casing are arranged on the leading screw axle sleeve guiding on casing.
Described leading screw axle sleeve is xantal material.The screw mandrel axle sleeve of xantal material has higher intensity and good wearing quality, and for the higher wear-resisting parts of requirement of strength, the most outstanding feature is exactly its good wearing quality.
Further, the orienting lug that is positioned at feed screw nut upper/lower terminal guiding described in is xantal material orienting lug.In like manner xantal material orienting lug has higher intensity and good wearing quality, and for the higher wear-resisting parts of requirement of strength, the most outstanding feature is exactly its good wearing quality.
Further, described eccentric hoop is xantal material.In like manner web joint and feed screw nut are to realize by the eccentric hoop of two xantal materials, also have good wearing quality.
Described screw rod end is square head structure, and the hole of described handwheel center is square hole, and square hole and square head structure are positioned in same force axis, and square head structure is connected with square hole.
Principle of work of the present utility model is: 1. this bent axle slide block type hand wheel mechanism mainly drives the feed screw nut carry-over moment of moving by rotatablely moving of screw rod; 2. feed screw nut upper/lower terminal is all by linear steering: the orienting lug that connects two xantal materials by the upper/lower terminal of feed screw nut, orienting lug is separately fixed on casing and case lid, ensure the linear movement of feed screw nut, and orienting lug has good wearing quality; 3. feed screw nut is adjustable connection with web joint: web joint and feed screw nut are to realize by the eccentric hoop of two xantal materials, this eccentric hoop designs for capable of regulating, can adjust within the specific limits opening and closing position, use holding screw locked position determining behind feed screw nut and the suitable position of bent axle.4. screw rod is provided with two stop nuts.Stop nut, and is fixed with straight pin for being threaded with screw rod, and feed screw nut is moved all the time in this displacement range, and what ensure handwheel is 90 ° of angles of revolution; 5. the position of screw rod is fixed and is led: the screw rod ring dowel that is fixed, both ends of the surface are installed two groups of plane needle bearings, after be pressed on casing by end cap together, fixed the position of screw rod.Two places that screw rod contacts with casing are arranged on the xantal material leading screw axle sleeve guiding on casing; 6. being connected of handwheel and screw rod.Screw rod end square toes are connected with handwheel square hole, are then fixed by straight pin, ensure dependability; The structures shape of this product driving interface angular velocity speed when opening slow, fastest while moving to 90 °, can ensure that thus valve has slower angular velocity to impact to reduce medium in the time opening, and reduce the risk that produces vibrations in quick opening process.
Compared with prior art, the beneficial effects of the utility model are: input torque on handwheel, make screw rod rotation, and moment is passed to feed screw nut and produces linear movement, feed screw nut is passed to crank by web joint by power, makes crank produce rotation output torque; Feed screw nut linear movement, in the process that crank rotatablely moves, all there is axle sleeve guiding, high strength, high-level efficiency that acme thread is intrinsic, centering is good, the advantage such as easy to process, make that this device has that intensity is high, stable drive, output torque is large, transmission efficiency is high, the life-span is long, the advantage that cost performance is superior.
Brief description of the drawings
Fig. 1 is general assembly structural drawing of the present utility model;
Fig. 2 is the cross section view of bent axle slider guide part of the present utility model;
Fig. 3 is bent axle interface of the present utility model position cross section view.
Fig. 4 be bent axle in 0 ° of position the i.e. initial position schematic diagram of this handwheel;
Fig. 5 be bent axle in 90 ° of positions this handwheel be maximum travel position schematic diagram.
Shown in figure: 1. handwheel 2. screw rod 3. housing plate 4. set collar 5. plane needle roller thrust bearing 6. casing 7. web joint 8. orienting lug 9. eccentric hoop 10. feed screw nut 11. bent axle 12. case lid 13. first stop nut 14. second stop nut 15. leading screw axle sleeves, 16. housing bushing 17. pointer lid 18. pointers.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Be illustrated in figure 1 general assembly structural drawing of the present utility model, first after eccentric hoop 9, web joint 7, bent axle 11, jump ring etc. being connected in advance, pack in the casing 6 that installs lower orienting lug 8, leading screw axle sleeve 15, axle sleeve, penetrate screw rod 2, then pack successively the first stop nut 13, feed screw nut 10, the rear adjustment eccentric hoop 9 of the second stop nut 14 into and determine the screw on tightening web joint 7 after each part position, the screw rod other end imports in leading screw axle sleeve 15 afterwards.Screw case outer body is respectively charged into plane needle bearing 5, set collar 4, plane needle bearing 5, all heads into after leading screw axle sleeve 15 at the other end, with straight pin pin set collar 5, then compresses housing plate 3.After the initial position of adjusting screw nut and shift length, with first and second stop nuts at straight pin pin two ends, load onto successively afterwards pointer lid 17, handwheel 1, case lid 11, pointer 18 and securing member.
Be illustrated in figure 2 slider guide cut-away section view of the present utility model, wherein feed screw nut 10 is adjusted and is determined by eccentric hoop 3 with the position of web joint 7, simultaneously feed screw nut is to be directed in the gathering sill that piece 8 is fixed on casing 6 and case lid 12, can ensure thus the linear movement track of feed screw nut.
Be illustrated in figure 3 bent axle interface of the present utility model position cross section view, wherein bent axle 11 is fixed in the housing bushing 16 of casing 6, axially, by case lid 12, eccentric hoop and orienting lug in Fig. 2 position, and guarantee that bent axle only has a required rotary freedom.
Be respectively as shown in Figure 4,5 the initial position that bent axle is this handwheel in 0 ° of position, and bent axle is maximum travel position in 90 ° of positions.When bent axle is during in 0 °, along with the rotation of handwheel, screw rod drives feed screw nut to produce linear movement, under the guarantee of upper and lower two orienting lugs, the linear movement of feed screw nut is passed to bent axle reposefully by web joint, make the rotation of bent axle wire winding rod axle sleeve, output torque, arrives 90 ° of maximum travel position at stop nut place.Because screw rod designs for acme thread, carry-over moment is large, and processing is simple, and this class formation screw thread tooth base intensity is good, and transmission efficiency is high, and self-locking performance is good, adds that crank up center and screw rod have larger spacing, can ensure that thus this handwheel can transmit compared with high pulling torque.
What more than enumerate is only a specific embodiment of the present utility model.Obviously, the utility model can also have many distortion, and all distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model, all should think protection domain of the present utility model.
Claims (8)
1. a bent axle slide block type hand wheel mechanism, it is characterized in that: comprise that handwheel (1), screw rod (2), orienting lug (8), eccentric hoop (9), feed screw nut (10), bent axle (11), web joint (7), stop nut (13), screw mandrel axle sleeve (14), casing (6) and case lid (12) Standard form: the hole that described screw rod end and handwheel center are provided with is positioned in same force axis, screw rod end is connected with hole, is then fixed by straight pin; Described screw rod (2) is arranged behind set collar (4) the pin position of plane needle bearing (5) by two ends, is pressed on casing (6) and positions together by housing plate (3); The upper/lower terminal of described feed screw nut (10) connects two orienting lugs (8), and orienting lug is separately fixed on casing (6) and case lid (12); Described feed screw nut (10) is connected by eccentric hoop (9) with web joint (7), and the rotation of eccentric hoop can realize the adjustment of bent axle (11) initial position; On described screw rod, open and close position according to feed screw nut the first stop nut (13) and the second stop nut (14) pin are set respectively, prevent that handwheel from opening and closing position.
2. according to the bent axle slide block type hand wheel mechanism described in claims 1, it is characterized in that: described screw rod and feed screw nut are by the secondary carry-over moment of acme thread.
3. bent axle slide block type hand wheel mechanism according to claim 1, is characterized in that, described stop nut, and is fixed with straight pin for being threaded with screw rod.
4. bent axle slide block type hand wheel mechanism according to claim 1, is characterized in that, two places that described screw rod contacts with casing are arranged on leading screw axle sleeve (15) guiding on casing.
5. bent axle slide block type hand wheel mechanism according to claim 4, is characterized in that, described leading screw axle sleeve is xantal material.
6. bent axle slide block type hand wheel mechanism according to claim 1, is characterized in that: the described orienting lug for feed screw nut upper/lower terminal guiding is xantal material.
7. bent axle slide block type hand wheel mechanism according to claim 1, is characterized in that, described eccentric hoop is xantal material.
8. bent axle slide block type hand wheel mechanism according to claim 1, is characterized in that, described screw rod end is square head structure, and the hole of described handwheel center is square hole, and square hole and square head structure are positioned in same force axis, and square head structure is connected with square hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188478.7U CN203759578U (en) | 2014-04-18 | 2014-04-18 | Crank sliding block type hand-wheel mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188478.7U CN203759578U (en) | 2014-04-18 | 2014-04-18 | Crank sliding block type hand-wheel mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203759578U true CN203759578U (en) | 2014-08-06 |
Family
ID=51254831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420188478.7U Withdrawn - After Issue CN203759578U (en) | 2014-04-18 | 2014-04-18 | Crank sliding block type hand-wheel mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203759578U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984386A (en) * | 2014-04-18 | 2014-08-13 | 浙江三方控制阀股份有限公司 | Crankshaft sliding block type hand wheel mechanism |
| CN106704682A (en) * | 2015-08-13 | 2017-05-24 | 中核新能核工业工程有限责任公司 | Manual vacuum valve operation mechanism used for nuclear |
-
2014
- 2014-04-18 CN CN201420188478.7U patent/CN203759578U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984386A (en) * | 2014-04-18 | 2014-08-13 | 浙江三方控制阀股份有限公司 | Crankshaft sliding block type hand wheel mechanism |
| CN103984386B (en) * | 2014-04-18 | 2015-12-30 | 浙江三方控制阀股份有限公司 | Bent axle slide block type hand wheel mechanism |
| CN106704682A (en) * | 2015-08-13 | 2017-05-24 | 中核新能核工业工程有限责任公司 | Manual vacuum valve operation mechanism used for nuclear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20151230 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |