CN210461579U - Screw rod adjusting mechanism - Google Patents
Screw rod adjusting mechanism Download PDFInfo
- Publication number
- CN210461579U CN210461579U CN201921536052.5U CN201921536052U CN210461579U CN 210461579 U CN210461579 U CN 210461579U CN 201921536052 U CN201921536052 U CN 201921536052U CN 210461579 U CN210461579 U CN 210461579U
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- China
- Prior art keywords
- lead screw
- sleeve
- supporting component
- adjustment mechanism
- assembly
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- 230000033001 locomotion Effects 0.000 claims description 15
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model relates to a lead screw adjusting mechanism, lead screw adjusting mechanism includes supporting component, the lead screw of relative supporting component flexible setting, with lead screw thread fit's rotating assembly, the setting that the rotating assembly rotated around self axle center, the lead screw slides in its length extension direction relative supporting component, lead screw adjusting mechanism still includes the drive assembly that fixes on the supporting component and provides power for the rotating assembly rotates, when the drive assembly drives the rotating assembly and rotates, the rotating assembly can drive the lead screw to slide relative supporting component; the mechanism realizes the accurate adjustment of the object to be adjusted; and then avoid adopting the traditional mode that drives by nut cover and is adjusted the object and adjust, realized compacter structure, reduce holistic cost of manufacture.
Description
Technical Field
The utility model relates to a lead screw adjustment mechanism.
Background
In the screw rod adjusting mechanism in the prior art, usually, a power output shaft of a driver for providing a rotating force is fixedly connected with a screw rod, a nut sleeve in threaded fit with the screw rod is sleeved on the screw rod, the nut sleeve needs to be fixed in the rotating direction of the nut sleeve, namely, the nut sleeve cannot rotate along with the screw rod, so that when the driver drives the screw rod to rotate, the nut sleeve can do linear motion along the screw rod, and thus an adjusted object is driven by the nut rod to move accurately, the above method is applicable to an adjusted object which can be fixed with the nut sleeve, because the nut sleeve is fixed with the adjusted object, the adjusted object can prevent the nut sleeve from rotating along with the screw rod, but for the adjusted object which cannot be directly fixed with the nut sleeve, the nut sleeve cannot move along the linear motion by adopting the above method, if the above method is adopted forcibly, a guide part is additionally arranged, let nut cover can only slide the setting along the guide part straight line, then nut cover rectilinear motion can push away and be adjusted the object, but the guide part need set up along the straight line and set up certain length so that lead to the nut cover, must let the whole volume increase of adjustment mechanism, to the less operating mode in space, such design is very unsuitable: in addition, the precision of the sliding fit between the guide part and the nut sleeve is very high in manufacturing requirement and very high in manufacturing requirement, the nut sleeve is generally made of copper materials in order to avoid abrasion of the screw threads of the lead screw, friction is generated between the copper nut sleeve and the guide part, the temperature reduction and lubrication of the nut sleeve become troublesome problems, and the problem of the sliding precision of the nut sleeve is caused by abrasion after long-time use.
Disclosure of Invention
The utility model aims to solve the technical problem that it provides a lead screw adjustment mechanism to overcome the not enough of prior art.
For solving the above technical problem, the utility model discloses a technical scheme is:
the utility model provides a lead screw adjustment mechanism, lead screw adjustment mechanism includes the supporting component, the flexible lead screw that sets up of relative supporting component, with lead screw thread fit's rotating assembly, rotating assembly is around self axle center pivoted setting, the lead screw is in the gliding setting of its relative supporting component of length extending direction, lead screw adjustment mechanism is still including fixing on the supporting component and for the rotating assembly rotates the drive assembly who provides power, when drive assembly drives the rotating assembly and rotates, rotating assembly can drive the relative supporting component slip of lead screw.
Preferably, the rotating assembly comprises a support sleeve and a nut sleeve which are fixedly connected with each other, the support sleeve is fixedly connected with a power output shaft of the driving assembly, and the nut sleeve is in threaded fit with the screw rod.
Preferably, the support sleeve comprises a first annular body and a second annular body with the outer diameter larger than that of the first annular body, one end of the first annular body far away from the second annular body is fixedly connected with a power output shaft of the driving assembly, and the nut sleeve is fixed on the inner periphery of the second annular body.
Preferably, the rotating assembly further comprises a first bearing sleeved on the periphery of the first annular body and a second bearing sleeved on the periphery of the second annular body.
Preferably, the adjusting mechanism further comprises a guide mechanism for preventing the screw rod from rotating and guiding the screw rod to move linearly in a telescopic way.
Preferably, the periphery of the screw rod is provided with a sliding groove extending along the movement direction of the screw rod, the guide mechanism comprises a sliding sleeve sleeved on the periphery of the screw rod and a clamping block detachably connected to the supporting assembly, and when the clamping block is installed on the supporting assembly, one end of the clamping block sequentially penetrates through the supporting assembly and the sliding sleeve to the sliding groove of the screw rod.
Preferably, a sliding portion is formed on one side of the length direction of the screw rod, the sliding portion is slidably inserted into the inner periphery of the sliding sleeve, the sliding groove is formed in the sliding portion, a threaded portion with threads is formed on the other side of the length direction of the screw rod, and the nut sleeve is in threaded fit connection with the threaded portion.
Preferably, the threaded portion is located on a side adjacent to the drive assembly and the sliding portion is located on a side remote from the drive assembly.
Preferably, the supporting component comprises a first sleeve seat and a second sleeve seat which are detachably connected with each other, the first sleeve seat is in butt joint with the driving component in an installing mode, and a cavity for containing the rotating component and the screw rod is formed in the inner peripheries of the first sleeve seat and the second sleeve seat in a closed mode. The sliding sleeve is arranged on the inner periphery of the second sleeve seat.
Preferably, the second sleeve seat is provided with an injection hole for injecting lubricating oil into the inner cavity of the support assembly.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
the screw rod adjusting mechanism of the utility model has the advantages that through the brand-new structural design, the rotating assembly is butted with the driving assembly, and the rotating assembly converts the rotating force into the force of the screw rod along the linear telescopic motion, thereby realizing the accurate adjustment of the object to be adjusted; and then avoid adopting the traditional mode that drives by nut cover and is adjusted the object and adjust, realized compacter structure, reduce holistic cost of manufacture. In addition, the screw rod can not rotate when obtaining the force of linear motion, thereby avoiding the abrasion of the pushing end part of the screw rod caused by the contact and rotation of the pushing end part of the screw rod and the regulated object, and further avoiding the condition of inaccurate precision control when the screw rod moves back and forth to regulate the regulated object due to the abrasion of the pushing end part of the screw rod.
Drawings
Fig. 1 is a three-dimensional exploded view of the screw adjusting mechanism of the present invention;
wherein: 101. a first nest base; 102. a second socket; 1020. an injection hole; 111. a first bearing; 112. a second bearing; 13. a support sleeve; 131. a first annular body; 132. a second annular body; 14. a nut sleeve; 15. a screw rod; 151. a threaded portion; 152. a sliding part; 1520. a chute; 16. a sliding sleeve; 17. and (7) clamping blocks.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, a lead screw 15 adjustment mechanism, lead screw 15 adjustment mechanism includes the supporting component, lead screw 15 of relative supporting component flexible setting, rotating assembly with 15 screw-thread fit of lead screw, rotating assembly is around self axle center pivoted setting, lead screw 15 is at the gliding setting of its length extending direction relative supporting component, lead screw 15 adjustment mechanism is still including fixing on the supporting component and for rotating the drive assembly (including servo motor and speed reducer) that provides power of rotating assembly rotation, a guiding mechanism for preventing 15 rotations of lead screw and for 15 edges straight line concertina movement of lead screw provide the direction, when drive assembly drives rotating assembly and rotates, rotating assembly can drive 15 relative supporting component of lead screw and slide, promptly. The screw rod 15 makes a linear telescopic motion along the length extension direction thereof.
The concrete steps are as follows; the supporting component comprises a first sleeve seat 101 and a second sleeve seat 102 which are detachably connected with each other, the first sleeve seat 101 is in butt joint with the driving component, and a cavity for accommodating the rotating component and the screw rod 15 is formed in the inner peripheries of the first sleeve seat 101 and the second sleeve seat 102 in a closed mode. And offer the filling hole 1020 that is used for pouring into lubricating oil to the supporting component inner chamber body on the second sleeve seat 102, first sleeve seat 101 and second sleeve seat 102 can be dismantled to be connected and be convenient for adjustment mechanism's maintenance and maintenance, can effectively lubricate inside each part at filling hole 1020 moreover, and lubricating oil can reduce the friction temperature between the part to reduce the friction, improve life and finally stably keep the precision that lead screw 15 adjusted.
Further, the rotating assembly comprises a supporting sleeve 13 and a nut sleeve 14 (made of copper) which are fixedly connected with each other, the supporting sleeve 13 is fixedly connected with a power output shaft of the driving assembly, and the nut sleeve 14 is in threaded fit with the screw rod 15. The support sleeve 13 comprises a first annular body 131 and a second annular body 132 with the outer diameter larger than that of the first annular body 131, one end of the first annular body 131 far away from the second annular body 132 is fixedly connected with a power output shaft of the driving assembly, and the nut sleeve 14 is fixed on the inner periphery of the second annular body 132. In addition, the rotating assembly further comprises a first bearing 111 disposed on the outer periphery of the first ring 131 and a second bearing 112 disposed on the outer periphery of the second ring 132.
Furthermore, a sliding portion 152 is formed on one longitudinal side of the lead screw 15, a sliding groove 1520 extending along the moving direction of the sliding portion 152 is formed on the outer circumference of the sliding portion 152, a threaded portion 151 with threads is formed on the other longitudinal side of the lead screw 15, and the nut sleeve 14 is in threaded fit connection with the threaded portion 151. The threaded portion 151 is located on a side close to the drive assembly and the sliding portion 152 is located on a side remote from the drive assembly.
In addition, the guiding mechanism includes a sliding sleeve 16 (the sliding sleeve 16 is disposed on the inner periphery of the second sleeve seat 102) that is disposed on the outer periphery of the sliding portion 152, and a latch 17 that is detachably connected to the supporting assembly, and when the latch 17 is mounted on the supporting assembly, one end of the latch 17 sequentially passes through the supporting assembly, the sliding sleeve 16, and the sliding groove 1520 of the lead screw 15. When the first end of the fixture block 17 is clamped with the sliding groove 1520, the screw rod 15 can be prevented from rotating, but a gap is reserved on the end surface of the fixture block 17 corresponding to the groove bottom surface of the sliding groove 1520, so that the fixture block 17 is prevented from abutting against the screw rod 15 in the radial direction of the screw rod 15, and the telescopic sliding of the screw rod 15 is prevented from being influenced.
The guide mechanism can prevent the screw rod 15 from rotating and only can do telescopic motion along the linear direction, so that the condition that one end of the screw rod 15 pushing the regulated object is abraded due to rotation is avoided. The use precision is improved.
The utility model discloses a when 15 adjustment mechanism of lead screw used, drive assembly can drive and support cover 13 and rotate, supports cover 13 and nut cover 14 fixed connection, so support cover 13 and rotate also to rotate at nut cover 14, when nut cover 14 rotates, because of lead screw 15 can not the rotation, consequently lead screw 15 is along sharp concertina movement under nut cover 14's turning force effect, and then the regulation is waited to adjust the object.
To sum up, the screw rod adjusting mechanism of the utility model, through a brand new structural design, enables the rotating assembly to be butted with the driving assembly, and enables the rotating assembly to convert the rotating force thereof into the force of the screw rod along the linear telescopic motion, thereby realizing the accurate adjustment of the object to be adjusted; and then avoid adopting the traditional mode that drives the object that waits to adjust with the nut cover to adjust, realized compacter structure, reduced holistic cost of manufacture. In addition, the screw rod can not rotate when obtaining the force of linear motion, thereby avoiding the abrasion of the pushing end part of the screw rod caused by the self-rotation of the pushing end part of the screw rod due to the contact with the object to be adjusted, and further avoiding the condition of inaccurate precision control when the object to be adjusted is adjusted by the forward and backward motion of the screw rod due to the abrasion of the pushing end part of the screw rod.
The present invention has been described in detail, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the scope of the present invention is not limited thereto, and the present invention is not limited to the above-mentioned embodiments, and all equivalent changes or modifications made according to the spirit of the present invention should be covered within the scope of the present invention.
Claims (10)
1. The utility model provides a lead screw adjustment mechanism which characterized in that: lead screw adjustment mechanism includes supporting component, relative the flexible lead screw that sets up of supporting component, with lead screw thread fit's rotating assembly, rotating assembly is around self axle center pivoted setting, the lead screw is relative at its length extending direction the gliding setting of supporting component, lead screw adjustment mechanism is still including fixing on the supporting component and for rotating assembly rotates the drive assembly who provides power, works as drive assembly drives when rotating assembly rotates, rotating assembly can drive the lead screw is relative the supporting component slides.
2. The lead screw adjustment mechanism of claim 1, wherein: the rotating assembly comprises a supporting sleeve and a nut sleeve which are fixedly connected with each other, the supporting sleeve is fixedly connected with a power output shaft of the driving assembly, and the nut sleeve is in threaded fit with the screw rod.
3. The lead screw adjustment mechanism of claim 2, wherein: the support sleeve comprises a first annular body and a second annular body with the outer diameter larger than that of the first annular body, one end of the first annular body, which is far away from the second annular body, is fixedly connected with a power output shaft of the driving assembly, and the nut sleeve is fixed on the inner periphery of the second annular body.
4. The lead screw adjustment mechanism of claim 3, wherein: the rotating assembly further comprises a first bearing sleeved on the periphery of the first annular body and a second bearing sleeved on the periphery of the second annular body.
5. The lead screw adjustment mechanism of claim 2, wherein: the adjusting mechanism further comprises a guide mechanism for preventing the screw rod from rotating and guiding the screw rod to do linear telescopic motion.
6. The lead screw adjustment mechanism of claim 5, wherein: offer the spout that extends along its direction of motion in the periphery of lead screw, guiding mechanism establishes including the cover the sliding sleeve of lead screw periphery, detachable connect fixture block on the supporting component, work as the fixture block is installed when on the supporting component, the one end of fixture block passes in proper order supporting component, sliding sleeve extremely in the spout of lead screw.
7. The lead screw adjustment mechanism of claim 6, wherein: the nut sleeve is characterized in that a sliding part is formed on one side of the threaded rod in the length direction, the sliding part is slidably inserted into the inner periphery of the sliding sleeve, the sliding groove is formed in the sliding part, a threaded part with threads is formed on the other side of the threaded rod in the length direction, and the nut sleeve is in threaded fit connection with the threaded part.
8. The lead screw adjustment mechanism of claim 7, wherein: the threaded portion is located on one side close to the driving assembly, and the sliding portion is located on one side far away from the driving assembly.
9. The lead screw adjustment mechanism of claim 1, wherein: the supporting component comprises a first sleeve seat and a second sleeve seat which are detachably connected with each other, the first sleeve seat is in butt joint with the driving component in an installation mode, and a cavity for containing the rotating component and the screw rod is formed in the inner peripheries of the first sleeve seat and the second sleeve seat in a closed mode.
10. The lead screw adjustment mechanism of claim 9, wherein: and the second sleeve seat is provided with an injection hole for injecting lubricating oil into the inner cavity of the supporting assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921536052.5U CN210461579U (en) | 2019-09-16 | 2019-09-16 | Screw rod adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921536052.5U CN210461579U (en) | 2019-09-16 | 2019-09-16 | Screw rod adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210461579U true CN210461579U (en) | 2020-05-05 |
Family
ID=70433172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921536052.5U Active CN210461579U (en) | 2019-09-16 | 2019-09-16 | Screw rod adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210461579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486432A (en) * | 2019-09-16 | 2019-11-22 | 苏州奥智智能设备股份有限公司 | screw adjustment mechanism |
-
2019
- 2019-09-16 CN CN201921536052.5U patent/CN210461579U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486432A (en) * | 2019-09-16 | 2019-11-22 | 苏州奥智智能设备股份有限公司 | screw adjustment mechanism |
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