CN203667951U - Worm wheel spiral elevator - Google Patents
Worm wheel spiral elevator Download PDFInfo
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- CN203667951U CN203667951U CN201420018978.6U CN201420018978U CN203667951U CN 203667951 U CN203667951 U CN 203667951U CN 201420018978 U CN201420018978 U CN 201420018978U CN 203667951 U CN203667951 U CN 203667951U
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Abstract
The utility model relates to a worm wheel spiral elevator. The worm wheel spiral elevator comprises a worm, a convex worm wheel, guide pins, disc springs, a lead screw, bearings, a box body, a concave worm wheel, a screw, a guide key, lock nuts and a second bearing, wherein the disc springs are arranged in a groove between the convex worm wheel and the concave worm wheel, and the guide pins and the lock nuts are installed on the circumferences of the outer sides of the convex worm wheel and the concave worm wheel; one side of the convex worm wheel is connected with the box body through the first bearing; one side of the concave worm wheel is connected with the box body through the second bearing; the lead screw is installed in the box body, the convex worm wheel and the concave worm wheel, and the convex worm wheel and the concave worm wheel are meshed with the lead screw. The worm wheel spiral elevator is a micro-backlash transmission mechanism which can eliminate transmission errors in a transmission system.
Description
Technical field
The utility model relates to a kind of worm wheel helical elevator, particularly relates to a kind of smoothing roll roll-separating mechanism of straightener.For the roll gap size adjustment of plate flattening machine and the roller corner adjusting mechanism of cross-roll straightening machine.
Background technology
Existing cross-roll straightening machine adopts adjusting angle mechanism and the plate flattening machine roll gap lift adjustment mechanism of connecting-rod mechanism type: realize the lifting of roll gap by changing the leading screw stroke of rack-mounted worm wheel helical elevator; Or cross-roll straightening machine is adopting in four-bar linkage reclining apparatus, realizes the change of smoothing roll corner by changing the overhanging leading screw length of worm wheel helical elevator.Modern straightener belongs to height electromechanical integration equipment, and the actual change amount of its parameter of adjusting is all by entering control computing machine by detecting the position feedback of carrying out.And existing worm wheel helical elevator is because existing manufacturing errors to make to exist the problem without repeatable accuracy and irregular deviation from active drive part detected roll gap lifting value or smoothing roll angle and actual numerical value, cannot eliminate in actual use this irregular error, the precision problem that cannot eliminate of coming to electric self-adjusting straps.
If can there is a kind of motion work, can ensure that error between sensing data and actual displacement amount is within the scope of license, make existing arbour press use worm wheel helical elevator to adjust roll gap mechanism and use the adjustment of the cross roll smoothing roll corner of worm wheel helical elevator can realize accurate transmission and eliminate the device that detects driving error to seem particularly important.
As can be seen here, above-mentioned existing worm wheel helical elevator, in structure and use, obviously still has inconvenience and defect, and is urgently further improved.Therefore how to found a kind of worm wheel helical elevator of new structure, also becoming the current industry utmost point needs improved target.
Because the defect that above-mentioned existing cross-roll straightening machine exists, practical experience and the expertise of the inventor based on being engaged in this type of product design manufacture and enriching for many years, and the utilization of cooperation scientific principle, actively research and innovation in addition, to founding a kind of worm wheel helical elevator of new structure, can improve general existing cross-roll straightening machine, make it have more practicality.Through constantly research, design, and after repeatedly studying sample and improving, finally create the utility model having practical value.
Summary of the invention
The purpose of this utility model is, overcome the defect of the worm wheel helical elevator existence of existing use, and provide a kind of worm wheel helical elevator of new structure, technical matters to be solved is to make a kind of micro-side-clearance transmission mechanism that can eliminate driving error in driving system of its invention, not only can realize the accurate adjustment of stroke nor exist in the time that the motion of positive and negative both direction changes, occur bringing detection error because gap exists the idle travel producing, make micro-sideshake worm wheel helical elevator possess larger commonality.
The purpose of this utility model and solve its technical matters and realize by the following technical solutions.According to a kind of worm wheel helical elevator the utility model proposes, comprising: worm screw, protruding worm gear, guide finger, dish spring, leading screw, bearing, casing, recessed worm gear, screw, feather key, jam nut, the second bearing, wherein: be provided with described dish spring in the intermediate groove of described protruding worm gear and described recessed worm gear, and in outer circumference, be equiped with guide finger and jam nut; Be connected with casing by clutch shaft bearing in described protruding worm gear one side; A side at described recessed worm gear is connected with casing by the second bearing; Described leading screw is installed in described casing and described protruding worm gear, described recessed worm gear, and described protruding worm gear, described recessed worm gear engage with leading screw.
The purpose of this utility model and solve its technical matters and also can be applied to the following technical measures to achieve further.
Aforesaid a kind of worm wheel helical elevator, is characterized in that in described protruding worm gear and fastening engagement place and the worm mesh of described recessed worm gear.
Aforesaid a kind of worm wheel helical elevator, is characterized in that the one end that is installed in described casing and described protruding worm gear, described recessed worm gear at leading screw is provided with feather key.
Aforesaid a kind of worm wheel helical elevator, is characterized in that between described protruding worm gear, described recessed worm gear and worm screw being Vertical Meshing state.
Aforesaid a kind of worm wheel helical elevator, is characterized in that dish spring can be made as between protruding worm gear and the complete worm gear of recessed worm gear formation one or more.
The utility model compared with prior art has obvious advantage and beneficial effect.As known from the above, for achieving the above object, the utility model provides a kind of worm wheel helical elevator, comprise: worm screw, protruding worm gear, guide finger, dish spring, leading screw, bearing, casing, recessed worm gear, screw, feather key, jam nut, the second bearing, wherein: be provided with described dish spring in the intermediate groove of described protruding worm gear and described recessed worm gear, and in outer circumference, be equiped with guide finger and jam nut; Be connected with casing by clutch shaft bearing in described protruding worm gear one side; A side at described recessed worm gear is connected with casing by the second bearing; Described leading screw is installed in described casing and described protruding worm gear, described recessed worm gear, and described protruding worm gear, described recessed worm gear engage with leading screw; The utility model has greatly reduced to be present in the gap between each driving parts in worm reducer and screw-drive mechanism; The detecting element that makes to be connected on worm screw can feed back the leading screw displacement change value of worm wheel helical elevator accurately, thereby ensures the accuracy of roll gap adjustment and the particularity of automation control.In worm wheel helical elevator inside, worm and gear is as the vertically arranged speed reduction gearing of one, and worm gear is simultaneously again as the nut in worm drive.The utility model has increased the screwing length of worm gear and leading screw, overall worm gear is changed into the Split type structure of 2 half worm gears simultaneously.On 2 half worm gears, increase guiding fitting surface and prevent alignment pin in relative rotation, and between 2 half worm gears, lay a dish spring and make 2 half worm gears protect all the time the state of separation.Due to the Vertical Meshing state keeping between worm and gear, in the time that worm screw is rotated, worm gear rotates a tooth pitch, and the rotation axis of the worm gear gear teeth and worm gear self has certain angle.Along worm axis do one with the vertical plane surface of worm gear rotation axis, this plane is divided into 2 parts by worm gear along this face, in the time there is not relative swing offset and just axially separate certain distance along it in 2 parts of worm gear due to angle of the existence between the worm gear gear teeth and worm gear axis, this shift value will increase the transverse tooth thickness (having a functional relation between the two) of certain gear teeth accordingly, thereby eliminate or reduced the meshing backlass of worm couple, formed the worm-gear drive pair of micro-sideshake or zero sideshake; Simultaneously under the effect of dish spring, make to eliminate and make up nut and the manufacturing errors of threads of lead screw pair in pitch in released state all the time between 2 half worm gears as the worm gear of nut in worm drive pair, formed the worm drive pair of Zero clearance.
Eliminate idle travel and the actual displacement that thus cause and the error amount that detect displacement of worm and gear in the time of forward and reverse motion.By technique scheme, a kind of worm wheel helical elevator of the utility model at least has following advantages and beneficial effect:
1, utilize the feature that the worm gear gear teeth of worm-gear drive pair are helical teeth, form major-minor split worm gear, utilize the geometrical property that worm gear is helical teeth, change worm gear apart from time realized the transmission sideshake that reduces and eliminate worm gear pair;
2, in worm drive pair, adopt a point body nut, and between nut, be provided with extruded dish spring, eliminated the drive gap between nut and leading screw;
3, be delivered between the leading screw of linear movement output from the input end worm screw of rotation, because eliminating or reduced the drive gap of positive and negative both direction, the rotary encoder of installing at the other end of worm shaft can feed back the straight-line displacement numerical value of leading screw accurately;
4, simple in structure, easily manufactured, be beneficial to and use on-the-spot repair and maintenance;
5, be applicable to need the thin plate arbour press of roll gap feedback and the roll gap adjustment component of cross-roll straightening machine;
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification sheets, and for above and other object of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of worm wheel helical elevator of the utility model.
Fig. 2 A is the variation schematic diagram of a kind of worm wheel helical elevator of the utility model convex-concave worm gear transverse tooth thickness in the time of close contact.
Fig. 2 B is the variation schematic diagram of a kind of worm wheel helical elevator of the utility model convex-concave worm gear transverse tooth thickness in the time separating.
1: worm screw 2: protruding worm gear
3: guide finger 4: dish spring
5: leading screw 6: bearing
7: casing 8: recessed worm gear
9: screw 10: feather key
11: 12: the second bearings of jam nut
Detailed description of the invention
Technological means and effect of taking for reaching predetermined goal of the invention for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to a kind of its detailed description of the invention of worm wheel helical elevator, structure, feature and effect thereof according to the utility model proposes, be described in detail as follows.
Refer to shown in Fig. 1, Fig. 2 A, Fig. 2 B, Fig. 1 is the structural representation of a kind of worm wheel helical elevator of the utility model.Fig. 2 A is the variation schematic diagram of a kind of worm wheel helical elevator of the utility model convex-concave worm gear transverse tooth thickness in the time of close contact.Fig. 2 B is the variation schematic diagram of a kind of worm wheel helical elevator of the utility model convex-concave worm gear transverse tooth thickness in the time separating.
The utility model proposes a kind of worm wheel helical elevator, comprising: worm screw 1, protruding worm gear 2, guide finger 3, dish spring 4, leading screw 5, bearing 6, casing 7, recessed worm gear 8, screw 9, feather key 10, jam nut 11, the second bearing 12, wherein:
Be provided with described dish spring 4 in the intermediate groove of described protruding worm gear 2 and described recessed worm gear 8, and in outer circumference, be equiped with guide finger 3 and jam nut 11;
Be connected with casing 7 by clutch shaft bearing 6 in described protruding worm gear 2 one sides;
A side at described recessed worm gear 8 is connected with casing 7 by the second bearing 12;
Described leading screw 5 is installed in described casing 7 and described protruding worm gear 2, described recessed worm gear 8, and described protruding worm gear 2, described recessed worm gear 8 engage with leading screw 5.
A kind of worm wheel helical elevator the utility model proposes, in application: see Fig. 1, after protruding worm gear 2 and recessed worm gear 8 use guide fingers 3 and jam nut 12 are fastening in the middle of the worm gear region of gear teeth gear teeth of machining worm wheel and the screw thread at machining worm wheel middle part when gapless, the gear teeth profile of tooth now obtaining and the profile of tooth of overall worm gear are in full accord.
When assembling worm gear screw thread pair, dish spring 4 is put in intermediate groove region at protruding worm gear 2 and recessed worm gear 8, and continue to install guide finger 3 and jam nut 11, and after being compressed to rear screw-in leading screw 5, protruding worm gear 2 and recessed worm gear 8 unclamp jam nut 11, make locating dowel pin 3 and jam nut 11 no longer compress worm gear and reservation and allow and have certain gap between protruding worm gear 2 and recessed worm gear 8, jam nut 11 effects are to prevent guide finger 3 landing in use.
By bearing 6, worm gear pair is fixed on casing 7, also with screw 9, feather key 10 is fixed on casing 7 as figure places feather key 10, prevent the landing of feather key 10.The effect of feather key 10 is to stop leading screw 5 to rotate in the time of mechanism kinematic.
In the screw thread pair forming at protruding worm gear 2 and recessed worm gear 8 and leading screw 5, eliminate under the effect of dish spring 4 in gap axial in the screw thread pair that nut and leading screw form, thereby realized the gapless driving of the screw thread pair that protruding worm gear 2 and recessed worm gear 8 and leading screw 5 form.
In being present in gap in the screw thread pair that protruding worm gear 2 and recessed worm gear 8 and leading screw 5 form and eliminating, between protruding worm gear 2 and recessed worm gear 8, there is a micro-gap, as the gap s in Fig. 2 b under the centrifugation of dish spring 4.Must be oblique tooth-shaped due to the worm gear gear teeth, when rectilinear movement without spin occurs for protruding worm gear 2 after appearance distance between protruding worm gear 2 and recessed worm gear 8 and under the restriction of guide finger 3 and recessed worm gear 8, the result of released state is as shown in Figure 2 b: by the gear teeth thickness that makes worm gear from the wheel transverse tooth thickness t(of overall worm gear as Fig. 2 A) change into the wheel transverse tooth thickness t1 separation, increase (t1-t) value with respect to thickness when gapless between protruding worm gear 2 and recessed worm gear 8, thereby reduced the back lash between the worm gear gear teeth and worm screw 1.Thereby reduce the error amount producing when angle value that worm screw 1 inputs transmits in worm gear pair engagement process.Realize micro-sideshake transmission of worm wheel helical elevator.
Protruding worm gear 2 and recessed worm gear 8 and leading screw 5 are under the thrust of dish spring 4, realize with leading screw 5 and screwed omnidistance gapless driving, and at Fig. 2 b in the time that protruding worm gear 2 and recessed worm gear 8 distances are S, be equivalent to gear teeth thickness to be increased to t1, reduced the sideshake of protruding worm gear 2 and recessed worm gear 8 and worm screw 1 transmission.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, but not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (5)
1. a worm wheel helical elevator, it is characterized in that comprising: worm screw (1), protruding worm gear (2), guide finger (3), dish spring (4), leading screw (5), bearing (6), casing (7), recessed worm gear (8), screw (9), feather key (10), jam nut (11), the second bearing (12), wherein:
Intermediate groove at described protruding worm gear (2) and described recessed worm gear (8) is provided with described dish spring (4), and in outer circumference, is equiped with guide finger (3) and jam nut (11);
Be connected with casing (7) by clutch shaft bearing (6) in described protruding worm gear (2) one sides;
A side at described recessed worm gear (8) is connected with casing (7) by the second bearing (12);
Described leading screw (5) is installed in described casing (7) and described protruding worm gear (2), described recessed worm gear (8), and described protruding worm gear (2), described recessed worm gear (8) engage with leading screw (5).
2. a kind of worm wheel helical elevator as claimed in claim 1, is characterized in that engaging with worm screw (1) at described protruding worm gear (2) and the fastening engagement place of described recessed worm gear (8).
3. a kind of worm wheel helical elevator as claimed in claim 1, is characterized in that the one end that is installed in described casing (7) and described protruding worm gear (2), described recessed worm gear (8) at leading screw (5) is provided with feather key (10).
4. a kind of worm wheel helical elevator as claimed in claim 1, is characterized in that between described protruding worm gear (2), described recessed worm gear (8) and worm screw (1) being Vertical Meshing state.
5. a kind of worm wheel helical elevator as claimed in claim 1, is characterized in that dish spring (4) can be made as between protruding worm gear (2) and the complete worm gear of recessed worm gear (8) formation one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420018978.6U CN203667951U (en) | 2014-01-13 | 2014-01-13 | Worm wheel spiral elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420018978.6U CN203667951U (en) | 2014-01-13 | 2014-01-13 | Worm wheel spiral elevator |
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| Publication Number | Publication Date |
|---|---|
| CN203667951U true CN203667951U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420018978.6U Expired - Fee Related CN203667951U (en) | 2014-01-13 | 2014-01-13 | Worm wheel spiral elevator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103863976A (en) * | 2014-01-13 | 2014-06-18 | 洛阳锐腾机械设备有限公司 | Worm wheel spiral elevator |
| CN106383007A (en) * | 2016-11-14 | 2017-02-08 | 西安电子科技大学 | Revolving body axial mass center flexible measuring apparatus based on spiral elevators |
| WO2019137496A1 (en) * | 2018-01-12 | 2019-07-18 | 上海微电子装备（集团）股份有限公司 | Lifting mechanism, lifting platform device, lithography machine and lithography method |
-
2014
- 2014-01-13 CN CN201420018978.6U patent/CN203667951U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103863976A (en) * | 2014-01-13 | 2014-06-18 | 洛阳锐腾机械设备有限公司 | Worm wheel spiral elevator |
| CN106383007A (en) * | 2016-11-14 | 2017-02-08 | 西安电子科技大学 | Revolving body axial mass center flexible measuring apparatus based on spiral elevators |
| CN106383007B (en) * | 2016-11-14 | 2019-06-21 | 西安电子科技大学 | Based on the rotator shaft of spiral lift to measuring flexibility of mass centre device |
| WO2019137496A1 (en) * | 2018-01-12 | 2019-07-18 | 上海微电子装备（集团）股份有限公司 | Lifting mechanism, lifting platform device, lithography machine and lithography method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 |
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| CF01 | Termination of patent right due to non-payment of annual fee |