CN203477226U - Lead screw fixing device - Google Patents
Lead screw fixing device Download PDFInfo
- Publication number
- CN203477226U CN203477226U CN201320623441.8U CN201320623441U CN203477226U CN 203477226 U CN203477226 U CN 203477226U CN 201320623441 U CN201320623441 U CN 201320623441U CN 203477226 U CN203477226 U CN 203477226U
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- China
- Prior art keywords
- eye
- splice
- leading screw
- button
- fixing device
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- 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
Links
- 238000013016 damping Methods 0.000 claims description 15
- 230000004323 axial length Effects 0.000 claims description 8
- 230000002265 prevention Effects 0.000 claims description 4
- 230000009347 mechanical transmission Effects 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to accessories in the field of mechanical transmission, in particular to a lead screw fixing device. According to the lead screw fixing device, a buffering device used for reducing axial force borne by a nut is arranged between the locking nut and a bearing so as to enable the axial force generated by a lead screw to be decomposed, and therefore the axial force, directly acting on the locking nut, of the lead screw is reduced; due to the fact that the axial force directly acting on the locking nut is reduced, the locking nut is not prone to being damaged and the service life of the locking nut is prolonged; the lead screw fixing device is convenient to use.
Description
Technical field
The utility model relates to mechanical transmission fields accessory, relates in particular to leading screw fixing device.
Background technique
Lead screw pair can will rotatablely move and the mutual device of changing of straight line motion as a kind of, its groundwork principle coordinates to come accomplish linear motion and the conversion mutually that rotatablely moves by leading screw and nut, due to this performance of lead screw pair is widely used in lead screw pair need to be by straight line motion and the occasion of conversion mutually that rotatablely moves.
Leading screw in prior art lead screw pair is to be generally fixed on corresponding position by rolling bearing, and rolling bearing is locked on leading screw by locking nut, because lead screw pair is straight line motion and the device of conversion mutually that rotatablely moves, leading screw can produce axial force in the course of the work, therefore the rolling bearing that fixedly leading screw is used is generally radial thrust bearing, and lock the nut that bearing uses in prior art, be all generally directly to contact with bearing, because leading screw can produce axial force in the course of the work, and the axial force that screw thread bears is very little, therefore, the locking nut that in lead screw pair, rigid bearing is used often damages, the locking nut life-span is short, use inconvenient.
Summary of the invention
The leading screw fixing device that the utility model provides, is intended to overcome locking nut in prior art and directly contacts with bearing the deficiency that causes the stressed excessive frequent damage of locking nut.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: leading screw fixing device, comprise leading screw, be arranged on leading screw for supporting the bearing of leading screw, described leading screw two ends are provided with outside thread, also comprise and be arranged on bearing outside for locking the locking nut of bearing, the outside thread at the internal thread of described locking nut and leading screw two ends is suitable, is provided with for reducing the damping device of the suffered axial force of nut between described locking nut and bearing.
As preferably, described damping device holds and detains and at least one eye-splice at least one, the outer wall of described eye-splice is taper, the taper that the described inwall that holds button passes through completely for prevention eye-splice, the axial length of described eye-splice is less than the axial length that holds button, by being set, at least one holds button and at least one eye-splice, and eye-splice can not be completely by holding button, eye-splice length is less than holds button, after damping device is stressed, because eye-splice can not be completely by holding button, axial force on leading screw can hold button with eye-splice contact position on be decomposed into axial force and radial force, radial force is born by the intensity of holding button, axial force after being decomposed is just born by nut, therefore reduced the suffered axial force of nut, extended the working life of nut.
As preferably, the described eye-splice contacting with leading screw contacts with the inner ring of bearing simultaneously, because the eye-splice that contacts with leading screw contacts with bearing inner race simultaneously, the inner ring by bearing is delivered in eye-splice during leading screw axial force, has extended the working life of rolling bearing.
As preferably, between described eye-splice and bearing inner race, be provided with dividing plate, described dividing plate one side only contacts with the inner ring of bearing, the opposite side of described dividing plate contacts with all eye-splices, when thering are a plurality of eye-splices and a plurality of when holding button, by dividing plate is set, make the outer ring of rolling bearing not transmit the axial force on leading screw, by inner ring, transmit axial force, extended the working life of rolling bearing.
As preferably, described locking nut and hold and be provided with backing plate between button, the diameter of the large and locking nut of the diameter of described backing plate, a plurality of when holding button when having, by at locking nut and hold backing plate is set between button, less locking nut external diameter is set and can holds that button contacts and stressed with all, reduced the diameter of locking nut, reduced the manufacture cost of locking nut.
As preferably, described damping device is one and holds button and an eye-splice, described eye-splice is provided with at least one parallel and conical tooth eye-splice axis, described holding buckled the cone tank being provided with for stoping conical tooth to pass through completely, described cone tank is identical with the quantity of conical tooth, the length of described conical tooth is less than the length of cone tank, by cone tank and conical tooth are set, axial force on leading screw is broken down into the radial force of axial force and a plurality of different direction, avoided radial force excessive and damage and to hold button, improved and held button intensity, extended the working life of holding button.
As preferably, described conical tooth is symmetricly set in eye-splice, and described cone tank is symmetricly set on to hold and buckles, by cone tank and cone shape hole, be symmetrical arranged, make to hold button and eye-splice stressed evenly, improved the intensity of holding button and eye-splice, extended the working life of holding button and eye-splice.
As preferably, described in hold button and eye-splice and be provided with and be convenient to hold button and the correct centering structure of installing of eye-splice, by centering structure is set, makes to hold button and eye-splice and be convenient to assemble, improved to hold and detained and the efficiency of assembling of eye-splice, easy to use.
As preferably, described centering structure is to be separately positioned on the projection holding in button and eye-splice, by projection is set, make to hold button and eye-splice in assembly process easily centering hold and detain and the tram of eye-splice, operation is very easy.
As preferably, described centering structure is to be separately positioned on the groove holding in button and eye-splice, by groove is set, adopts the method for removing material to obtain, and has reduced to hold the material consumption of button and eye-splice, has reduced to hold and has detained and the manufacture cost of eye-splice.
The leading screw fixing device that the utility model provides, tool has the following advantages: by being provided with between locking nut and bearing for reducing the damping device of the suffered axial force of nut, the axial force that leading screw is produced is decomposed, reduce leading screw and acted directly on the axial force on locking nut, because the axial force acting on locking nut reduces, thereby it is damaged that locking nut is not easy, extended the working life of locking nut, easy to use.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model embodiment one schematic diagram,
Accompanying drawing 2 is schematic diagram of the utility model embodiment two,
Accompanying drawing 3 is schematic diagram of the utility model embodiment three,
Accompanying drawing 4 is the utility model leading screw fixing device working state schematic representations.
Embodiment
Embodiment one
Below in conjunction with accompanying drawing, leading screw fixing device of the present utility model is described further.As shown in Figure 1, leading screw fixing device, comprise leading screw 1, be arranged on leading screw 1 for supporting the bearing 2 of leading screw 1, described leading screw 1 two ends are provided with outside thread, also comprise and be arranged on bearing 2 outsides for locking the locking nut 3 of bearing 2, the outside thread at the internal thread of described locking nut 3 and leading screw 1 two ends is suitable, between described locking nut 3 and bearing 2, be provided with for reducing the damping device 4 of the suffered axial force of nut, described damping device 4 is one and holds 42 and eye-splices 41 of button, the outer wall of described eye-splice 41 is taper, the taper that the described inwall that holds button 42 passes through completely for prevention eye-splice 41, the axial length of described eye-splice 41 is less than the axial length that holds button 42, be that the diameter of bearing 2 shaft parts is set on described eye-splice 41 inwalls and leading screw 1 is suitable, eye-splice 41 is arranged on leading screw 1, even eye-splice 41 with hold button 42 and coordinate afterwards after stressed, holding button 42 still can make eye-splice 41 pass through completely, described in, holding button 42 only has part to contact with the conical surface that eye-splice 41 coordinates, by arranging one, hold 42 and eye-splices 41 of button, and eye-splice 41 can not be completely by holding button 42, eye-splice 41 length are less than holds button 42, hold button 42 with eye-splice 41 stressed after, gapped between eye-splice 41 and locking nut 3, after damping device 4 is stressed, because eye-splice 41 can not be completely by holding button 42, axial force on leading screw 1 can hold button 42 with eye-splice 41 contact positions on be decomposed into axial force and radial force, radial force is born by the intensity of holding button 42, axial force after being decomposed is just born by nut, therefore reduced the suffered axial force of nut, extended the working life of nut.
The described eye-splice contacting with leading screw 1 41 contacts with the inner ring 21 of bearing 2 simultaneously, be that axial force on described leading screw 1 is only delivered in eye-splice 41 by the inner ring 21 of rolling bearing 2, because the eye-splice 41 contacting with leading screw 1 contacts with bearing 2 inner rings 21 simultaneously, inner ring 21 by bearing 2 while being leading screw 1 axial force is delivered in eye-splice 41, has extended the working life of rolling bearing 2.
Embodiment two
As shown in Figure 2, the present embodiment and embodiment's one difference is, described damping device 4 also can hold button 42 and at least one eye-splice 41 at least one, the outer wall of described eye-splice 41 is taper, the taper that the described inwall that holds button 42 passes through completely for prevention eye-splice 41, the axial length of described eye-splice 41 is less than the axial length that holds button 42, being described damping device 4 holds button 42 and eye-splice 41 forms by a plurality of, holding button 42 cooperatively interacts with eye-splice 41, button 42 is held in sheathed one of eye-splice 41 outsides, this outer wall that holds button 42 is for holding with the next one eye-splice coordinating 41 outer walls of detaining 42, this holds button 42 and in when assembling, is that to hold button 42 be again eye-splice 41, logical keeping arranges a plurality of hold button 42 and eye-splices 41, make the axial force on leading screw 1 be divided into an axial force and a plurality of radial force, reduce to hold the power that button 42 and eye-splice 41 are born, extended the working life of holding button 42 and eye-splice 41, by being provided with between locking nut 3 and bearing 2 for reducing the damping device 4 of the suffered axial force of nut, the axial force that leading screw 1 is produced is decomposed, reduce leading screw 1 and acted directly on the axial force on locking nut 3, because the axial force acting on locking nut 3 reduces, thereby it is damaged that locking nut 3 is not easy, extended the working life of locking nut 3, easy to use.
Further, between described eye-splice 41 and bearing 2 inner rings 21, be provided with dividing plate 5, described dividing plate 5 one sides only contact with the inner ring 21 of bearing 2, the opposite side of described dividing plate 5 contacts with all eye-splices 41, be that the side that described dividing plate 5 contacts with eye-splice 41 is plane, the face that described dividing plate 5 contacts with bearing 2 inner rings 21 is provided with projection or hollow boss, the face that dividing plate 5 contacts with bearing 2 is only contacted with the inner ring 21 of bearing 2, when thering is a plurality of eye-splices 41 and a plurality of button that holds 42 time, by being set, dividing plate 5 make the outer ring of rolling bearing 2 not transmit the axial force on leading screw 1, by inner ring 21, transmit axial force, extended the working life of rolling bearing 2.
Described locking nut 3 and hold button and be provided with backing plate 6 between 42, the diameter of the large and locking nut 3 of the diameter of described backing plate 6, the structure that is described backing plate 6 is similar to pad, the diameter of the large and locking nut 3 of the diameter of backing plate 6, when thering are a plurality of buttons that hold 42 time, by backing plate 6 being set at locking nut 3 with holding between button 42, arranges less locking nut 3 external diameters can with all holding detain 42 contact also stressed, reduce the diameter of locking nut 3, reduced the manufacture cost of locking nut 3.
Embodiment three
As shown in Figure 3, the present embodiment and embodiment one and embodiment's two difference is, described damping device 4 is one and holds 42 and eye-splices 41 of button, described eye-splice 41 is provided with at least one parallel and conical tooth 411 eye-splice 41 axis, described button 42 cone tanks 421 that are provided with for stoping conical tooth 411 to pass through completely that hold, described cone tank 421 can be groove, also deep gouge, do not run through the groove that holds button 42, described cone tank 421 is identical with the quantity of conical tooth 411, the length of described conical tooth 411 is less than the length of cone tank 421, by cone tank 421 and conical tooth 411 are set, axial force on leading screw 1 is broken down into the radial force of axial force and a plurality of different direction, avoided radial force excessive and damage and to hold button 42, improved and held button 42 intensity, extended the working life of holding button 42, described conical tooth 411 is symmetricly set in eye-splice 41, described cone tank 421 is symmetricly set on and holds on button 42, by cone tank 421 and cone shape hole, be symmetrical arranged, make to hold button 42 and eye-splice 41 stressed evenly, improved the intensity of holding button 42 and eye-splice 41, extended the working life of holding button 42 and eye-splice 41.
Further, describedly hold button 42 and eye-splice 41 and be provided with and be convenient to hold button 42 and the correct centering structure 7 of installing of eye-splice 41, by centering structure 7 is set, make to hold button 42 and eye-splice 41 and be convenient to assembling, improved the efficiency of assembling that holds button 42 and eye-splice 41, easy to use, described centering structure 7 is for being separately positioned on the projection holding in button 42 and eye-splice 41, by projection is set, make to hold button 42 and eye-splice 41 in assembly process easily centering hold the tram of button 42 and eye-splice 41, operation is very easy.
Described centering structure 7 also can be for being separately positioned on the groove holding in button 42 and eye-splice 41, by groove is set, described centering structure 7 can be also the marks such as lines, paster, adopt the method for removing material to obtain, reduce to hold the material consumption of button 42 and eye-splice 41, reduced the manufacture cost of holding button 42 and eye-splice 41.
Technique scheme in use, as shown in Figure 4, during assembling, first bearing 2 is assemblied on screw mandrel, then eye-splice 41 is assembled on leading screw 1, button 42 is held in assembling again, making to hold button 42 coordinates with eye-splice 41, finally assemble locking nut 3, by being provided with, for what reduce the suffered axial force of nut, hold button 42 and eye-splice 41 between locking nut 3 and bearing 2, the axial force that leading screw 1 is produced is broken down into axial force and radial force, reduce leading screw 1 and acted directly on the axial force on locking nut 3, because the axial force acting on locking nut 3 reduces, thereby it is damaged that locking nut 3 is not easy, extended the working life of locking nut 3, easy to use
These are only the preferred embodiment of the present invention, be intended to embody outstanding technique effect of the present invention and advantage, is not the restriction to technological scheme of the present invention.Those skilled in the art will appreciate that all modifications of making based on the technology of the present invention content, variation or substitute technology feature, all should be covered by the technology category of claims opinion of the present invention.
Claims (10)
1. leading screw fixing device, comprise leading screw (1), be arranged on leading screw (1) above for supporting the bearing (2) of leading screw (1), described leading screw (1) two ends are provided with outside thread, also comprise and be arranged on the locking nut (3) that bearing (2) outside is used for locking bearing (2), the outside thread at the internal thread of described locking nut (3) and leading screw (1) two ends is suitable, it is characterized in that: between described locking nut (3) and bearing (2), be provided with the damping device (4) for reducing the suffered axial force of nut.
2. leading screw fixing device according to claim 1, it is characterized in that: described damping device (4) is at least one holds button (42) and at least one eye-splice (41), the outer wall of described eye-splice (41) is taper, the taper that the described inwall that holds button (42) passes through completely for prevention eye-splice (41), the axial length of described eye-splice (41) is less than the axial length that holds button (42).
3. leading screw fixing device according to claim 2, is characterized in that: the described eye-splice (41) contacting with leading screw (1) contacts with the inner ring (21) of bearing (2) simultaneously.
4. leading screw fixing device according to claim 3, it is characterized in that: between described eye-splice (41) and bearing (2) inner ring (21), be provided with dividing plate (5), described dividing plate (5) one sides only contact with the inner ring (21) of bearing (2), and the opposite side of described dividing plate (5) contacts with all eye-splices (41).
5. leading screw fixing device according to claim 2, is characterized in that: described locking nut (3) and hold and be provided with backing plate (6) between button (42), the diameter of the large and locking nut (3) of the diameter of described backing plate (6).
6. leading screw fixing device according to claim 1, it is characterized in that: described damping device (4) is one and holds button (42) and an eye-splice (41), described eye-splice (41) is provided with at least one parallel and conical tooth (411) eye-splice (41) axis, the described button (42) that holds is provided with the cone tank (421) for stoping conical tooth (411) to pass through completely, described cone tank (421) is identical with the quantity of conical tooth (411), and the length of described conical tooth (411) is less than the length of cone tank (421).
7. leading screw fixing device according to claim 6, is characterized in that: it is upper that described conical tooth (411) is symmetricly set on eye-splice (41), and described cone tank (421) is symmetricly set on and holds on button (42).
8. leading screw fixing device according to claim 6, is characterized in that: described in hold button (42) and eye-splice (41) and be provided with and be convenient to hold button (42) and the correct centering structure (7) of installing of eye-splice (41).
9. leading screw fixing device according to claim 8, is characterized in that: described centering structure (7) is for being separately positioned on the projection holding in button (42) and eye-splice (41).
10. leading screw fixing device according to claim 8, is characterized in that: described centering structure (7) is for being separately positioned on the groove holding in button (42) and eye-splice (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623441.8U CN203477226U (en) | 2013-10-10 | 2013-10-10 | Lead screw fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623441.8U CN203477226U (en) | 2013-10-10 | 2013-10-10 | Lead screw fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477226U true CN203477226U (en) | 2014-03-12 |
Family
ID=50225559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320623441.8U Expired - Lifetime CN203477226U (en) | 2013-10-10 | 2013-10-10 | Lead screw fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930149A (en) * | 2015-06-17 | 2015-09-23 | 川北真空科技(北京)有限公司 | Lead screw mounting structure and mounting method thereof |
-
2013
- 2013-10-10 CN CN201320623441.8U patent/CN203477226U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930149A (en) * | 2015-06-17 | 2015-09-23 | 川北真空科技(北京)有限公司 | Lead screw mounting structure and mounting method thereof |
| CN104930149B (en) * | 2015-06-17 | 2018-03-09 | 川北真空科技(北京)有限公司 | A kind of leading screw mounting structure and its installation method |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
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| CX01 | Expiry of patent term |