CN205350239U - Transmission and drive mechanism - Google Patents
Transmission and drive mechanism Download PDFInfo
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- CN205350239U CN205350239U CN201620009459.2U CN201620009459U CN205350239U CN 205350239 U CN205350239 U CN 205350239U CN 201620009459 U CN201620009459 U CN 201620009459U CN 205350239 U CN205350239 U CN 205350239U
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- annular boss
- nut
- screw rod
- nut body
- face
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Abstract
The utility model relates to the field of machinary in helicoidal gear technical field, provide a transmission and drive mechanism, transmission include the screw rod and with screw rod complex nut, the nut includes nut body and the protruding annular boss of locating on the nut body terminal surface, annular boss has peripheral face and step face, it is surperficial with the intersection line's of peripheral face outside that the step face be nut body terminal surface, the screw rod has the screw thread section and is located the linkage segment of screw thread section one end, and screw flight section periphery is equipped with the screens piece, is equipped with the dog on the terminal surface of annular boss, and screens piece backstop is on the dog in the time of in screw rod screw in nut. Establish annular boss through a nut body terminal surface epirelief, be equipped with on the annular boss with the screens piece matched with dog of screw rod, reach screw rod and nut looks meshing rotation in order to realize screw rod or nut along the free reciprocating motion of axis, annular boss has peripheral face and step face simultaneously, makes the shaping of nut one -step refining, reduces the cost that the angle limit and just improves the spacing precision of angle.
Description
Technical field
This utility model relates to the helicoidal gear technical field in mechanical field, particularly relates to a kind of actuating device and drive mechanism.
Background technology
Bolt and nut is one of modern structure and the most widely used connection fastening accessory of plant equipment, simultaneously can be used among drive mechanism.Current screw rod and nut drive mechanism mainly adopt the mode that end face is spacing, this limit method is when transmitting high torque, make more greatly nut generation elastic deformation due to torsion, especially for adopt the nut of plastic cement material, very easily occur nut in the stuck problem of moving end.
Screw rod and nut drive mechanism can also adopt the mode of angle limit, by arranging breach or boss limits the angle of nut rotation at nut end face, and then realize spacing.But it is that hexagon or other non-cylindrical injection moulding nuts are when adopting angle limit for profile, in order to control the position of confined planes and confined planes, its mould structure must flow through the resetting-mechanism of complexity to ensure the positional precision of confined planes, causes that the limit accuracy of this series products is low and production cost is high.
Utility model content
The purpose of this utility model is in that to provide a kind of actuating device and drive mechanism, it is intended to the injection moulding nut end face solving to exist in prior art non-cylindrical profile is spacing easily stuck, simultaneously nut processed complex, the problem that angle limit cost is high and precision is low.
For solving above-mentioned technical problem, the technical solution of the utility model is: provide a kind of actuating device, described actuating device includes periphery and sets threaded screw rod and have the nut of internal thread hole, described nut and described screw rod engagement rotation move back and forth along axis to realize described screw rod or described nut, described nut includes nut body and the annular boss being convexly equipped on described nut body end face, described annular boss has the peripheral surface for inlaid piece of mould splicing and the step surface of the typing for mould, described step surface is the portion end surface that described nut body end face is positioned at the periphery of the intersecting lens that described nut body end face is formed with described peripheral surface；Described screw rod has thread segment and is positioned at the linkage section of described thread segment one end, described screw flight section periphery is provided with a screens block, the end face of described annular boss is provided with a block, when described screw flight section is screwed in described nut body by described annular boss end face, described screens block backstop is on described block.
Preferably, described block is described annular boss end threadingly rotation direction spiral forming, and around described annular boss axis in the shape of a spiral, described block has the confined planes for contacting with described screens block to the end face of described annular boss.
Preferably, described annular boss is cylindrical, and described peripheral surface is a face of cylinder.
Preferably, described screens block is located at the root of described thread segment.
Preferably, described screens block is wedge type, and described screens block has the first surface contacted with described block and with described first surface back to the second surface arranged, and described second surface is for and being obliquely installed to outside to described first surface by described screw rod periphery.
This utility model another object is in that to provide a kind of drive mechanism, and described drive mechanism is in order to drive a power transmission shaft, and it includes actuating device, and one end of described power transmission shaft is installed in described nut body.
Further, described drive mechanism includes the gear-box driven by driving device, described gear-box includes housing, be installed in described housing output port in and there is the bearing of installing hole, and the output shaft stretched out by described installing hole, the recessed mounting groove of described linkage section end face, described output shaft is adaptive with described mounting groove；Described screw rod linkage section is arranged on the installing hole of described bearing.
Further, described linkage section periphery projection one baffle ring and end opens have some claws, the all elastic gathering of some described claws inserts in described installing hole inside and elasticity is opened and is stuck in away from the described bearing face of described annular boss, and described baffle ring backstop is on the described bearing face of described annular boss.
Further, described drive mechanism includes the sleeve with accommodating hole, described nut body periphery is provided with some slide blocks of strip, some described slide blocks are all arranged along the axis direction of described nut body, described sleeve accommodating hole inwall is corresponding with some described slide blocks is arranged with some grooves, described nut body be inserted in described sleeve accommodating hole and some described slide blocks respectively with described groove fit.
Further, described nut body offers the some elastic clamping blocks that elastic can be flared out and inwardly have certain clamping force away from the sidewall of the end of described annular boss, and described power transmission shaft is plugged in described nut body away from the end of described annular boss and be locked on some described elastic clamping blocks.
This utility model has the technical effect that projection one annular boss on nut body end face relative to prior art, annular boss is provided with the block that the screens block with described screw rod matches, reach the screw rod rotation that is meshed with nut freely to move back and forth along axis realizing screw rod or nut, annular boss has the peripheral surface for inlaid piece of mould splicing and the step surface of the typing for mould simultaneously, make nut time processing molding, improve production efficiency, reduce the cost of angle limit and improve the precision of angle limit.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the actuating device that this utility model embodiment provides；
Fig. 2 is the axonometric chart of nut in the actuating device that this utility model embodiment provides；
Fig. 3 is the axonometric chart of another angle of Fig. 2；
Fig. 4 is the axonometric chart of screw rod in the actuating device that this utility model embodiment provides；
Fig. 5 is the axonometric chart of the drive mechanism that this utility model embodiment provides；
Fig. 6 is the drive mechanism sectional view along center line A-A of Fig. 5；
Fig. 7 is the enlarged drawing of B in Fig. 6.
Label involved by above-mentioned accompanying drawing is detailed as follows:
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
It should be noted that be referred to as on " being fixed on " or " being arranged at " another element when element, it can directly on another element or it be indirectly secured to or be arranged at possibly through the 3rd parts on another element.When an element is referred to as " being connected to " another element, it can be directly to another element or it is indirectly coupled on another element possibly through the 3rd parts.
Also, it should be noted the orientation term such as left and right, upper and lower in the present embodiment, be only relative concept or with the normal operating condition of product for reference each other, and should not be regarded as have restrictive.
Please refer to Fig. 1 to Fig. 4, a kind of actuating device that this utility model provides, actuating device includes periphery and sets threaded screw rod 10 and have the nut 20 of internal thread hole, nut 20 and screw rod 10 engagement rotation move back and forth along axis to realize screw rod 10 or nut 20, nut 20 includes nut body 21 and the annular boss 22 being convexly equipped on nut body 21 end face, annular boss 22 has the peripheral surface 221 for inlaid piece of mould splicing and the step surface 222 of the typing for mould, step surface 222 is the portion end surface that nut body 21 end face is positioned at the periphery of the intersecting lens that nut body 21 end face is formed with peripheral surface 221；Screw rod 10 has thread segment 11 and is positioned at the linkage section 12 of thread segment 11 one end, thread segment 11 periphery of screw rod 10 is provided with a screens block 13, the end face of annular boss 22 is provided with a block 23, when the thread segment 11 of screw rod 10 is screwed in nut body 21 by annular boss 22 end face, screens block 13 backstop is on block 23.
In the present embodiment, step surface 222 is perpendicular to described nut 20 axis and the die joint on nut 20 mould, it is simple to nut 20 single injection-molded；When utilizing mould processing annular boss 22, utilize the form that inlaid piece of mould splices, it is simple to annular boss 22 and nut body 21 single injection-molded；When annular boss 22 end face is plane, the height of block 23 annularly boss 22 axis direction is at least a pitch of nut 20 or screw rod 10, when being so prevented effectively from screens block 13 also non-backstop is on block 23, screw rod 10 has blocked on the end face dying from annular boss 22.By projection one annular boss 22 on nut body 21 end face, annular boss 22 is provided with the block 23 that the screens block 13 with screw rod 10 matches, reach screw rod 10 rotation that is meshed with nut 20 freely to move back and forth along axis realizing screw rod 10 or nut 20, annular boss 22 has the peripheral surface 221 for inlaid piece of mould splicing and the step surface 222 of the typing for mould simultaneously, make nut 20 time processing molding, improve production efficiency, reduce the cost of angle limit and improve the precision of angle limit.
Please refer to Fig. 1, Fig. 2, in the present embodiment, preferably, block 23 is annular boss 22 end threadingly rotation direction spiral forming, the end face of annular boss 22 is around annular boss 22 axis in the shape of a spiral, block 23 has the confined planes 231 for contacting with screens block 13, is prevented effectively from screw rod 10 card and dies from nut 20, reaches screw rod 10 and is meshed with nut 20 to rotate and freely moves back and forth along axis realizing screw rod 10 or nut 20.During injection mo(u)lding, mold insert opposing mold body is in rotary motion, owing to flank and confined planes 231 pass through process at one time and be absent from relative motion on same mold insert, and resetting-mechanism that need not be complicated can ensure the relative position of confined planes 231 well, realize high-precision spacing, owing to resetting-mechanism simplifies the processing capacity that mould is greatly reduced, process-cycle and manufacturing cost, the reduction of die cost enters also to make the cost of injection moulding nut 20 to reduce.
Please refer to Fig. 1, Fig. 2, in this embodiment, it is preferred that, annular boss 22 is cylindrical, and peripheral surface 221 is a face of cylinder 223, makes nut 20 time processing molding, more effectively improves production efficiency, reduces the cost of angle limit and improves the precision of angle limit.
Please refer to Fig. 1, Fig. 4, in this embodiment, it is preferred that, screens block 13 is located at the root of thread segment 11 and is positioned on the screw thread of root, improves the utilization rate of thread segment 11.
In the present embodiment, preferably, screens block 13 is in wedge type, screens block 13 have the first surface 131 contacted with block 23 and with first surface 131 back to arrange second surface 132, second surface 132 is for and being obliquely installed to outside to first surface 131 by screw rod 10 periphery, so design is effectively improved the moment of torsion that screens block 13 bears, and namely improves the intensity of screens block 13.
This utility model another object is in that to provide a kind of drive mechanism, and drive mechanism is in order to drive a power transmission shaft 60, its packet transmission device, and one end of power transmission shaft 60 is installed in nut body 21.Certainly, the application of this actuating device is not limited to that, for instance: mechanical pencil can be applied this actuating device and realize the reciprocating motion of pen core, etc..
Please refer to Fig. 1, Fig. 5 to Fig. 7, further, drive mechanism includes the gear-box 40 driven by driving device 30, gear-box 40 includes housing 41, is installed in housing 41 output port 411 and has the bearing 42 of installing hole 421, and the output shaft 43 stretched out by installing hole 421, the recessed mounting groove 121 of linkage section 12 end face, output shaft 43 is adaptive with mounting groove 121；Screw rod 10 linkage section 12 is arranged on the installing hole 421 of bearing 42.
In the present embodiment, gear-box 40 includes housing 41, bearing 42 in the gear train 44 being placed in housing 41, gear train 44 output shaft 43 driven and the output port 411 being installed in housing 41, and output shaft 43 is stretched out by the installing hole 421 of bearing 42；Bearing 42 and housing 41 are interference fit.Coordinated with the mounting groove 121 on screw rod 10 by output shaft 43, make screw rod 10 realize rotating.
In the present embodiment, mounting groove 121 has the first mounting groove 1211 and is positioned at the second mounting groove 1212 of linkage section 12 end, the axis of the first mounting groove 1211 and the axis of the second mounting groove 1212 are overlapping, the cross section of the first mounting groove 1211 is D type, the circular in cross-section of the second mounting groove 1212, the output shaft 43 of gear-box 40 and the first mounting groove corresponding setting of the 1211, second mounting groove 1212 and suitable, namely described output shaft 43 is D type with the cross section of described first mounting groove 1211 load segment, is round with the cross section of described second mounting groove 1212 load segment.
Alternatively, the cross section of mounting groove 12 is D type, and correspondingly, the cross section of output shaft 43 is also in D type and suitable with mounting groove 12.The shape of certain mounting groove 12 is not limited to that, is delivered on screw rod 10 by the moment of torsion of gear-box 40 as long as meeting.
Further, peripheral projection one baffle ring 122 of linkage section 12 and end opens have some claws 123, the all elastic gathering of some claws 123 inserts in installing hole 421 inside and elasticity is opened and is stuck in away from bearing 12 end face of annular boss 22, and baffle ring 122 backstop is on bearing 42 end face of annular boss 22.
In the present embodiment, baffle ring 122 is located at the root of linkage section 12；Screw rod 10, screens block 13 and baffle ring 122 can be one-body molded；The axis of baffle ring 122 is overlapping with the axis of linkage section 12；Claw 123 is two and is uniformly distributed in the periphery of linkage section 12 end, but the quantity of claw 123 is not limited to that.Effectively prevent screw rod 10 to be axially moveable by baffle ring 122 and arranging of claw 123, namely there is limit function.
Please refer to Fig. 1, Fig. 5 to Fig. 7, further, drive mechanism includes the sleeve 50 with accommodating hole 51, nut body 21 periphery is provided with some slide blocks 211 of strip, some slide blocks 211 are all arranged along the axis direction of nut body 21, accommodating hole 51 inwall of sleeve 50 is corresponding with some slide blocks 211 is arranged with some grooves 511, and nut body 21 is inserted in sleeve accommodating hole 51 and some cunnings 211 pieces coordinate with groove 511 respectively.
In the present embodiment, slide block 211 is two and is uniformly arranged peripheral with nut body 21, but the quantity of slide block 211 is not limited to that；Two sides relative tilt away from slide block 211 end of annular boss 22 is arranged, and so design contributes to being prone to when slide block 211 is installed be directed at groove 511；Groove 511 is correspondingly provided with two, but the quantity of groove 511 is also not limited to this.Nut 20 realizes reciprocatingly sliding under the drive of screw rod 10 in sleeve 50.
Please refer to Fig. 6, Fig. 1 to Fig. 3, further, nut body 21 offers the some elastic clamping blocks 212 that elastic can be flared out and inwardly have certain clamping force away from the sidewall of the end of annular boss 22, and power transmission shaft 60 is plugged in nut body 21 away from the end of annular boss 22 and be locked on some elastic clamping blocks 212.
In the present embodiment, elastic clamping block 212 is two and is arranged alternately with slide block 211, but the quantity of elastic clamping block 212 is not limited to that；Elastic clamping block 212 includes a spring plate 2121 of strip, spring plate 2121 is to be had the perforation 213 of two strips by nut body 21 sidewall parallel interval to be formed, wedge-shaped part 2122 that is that there is in the middle part of spring plate 2121 wedge shaped shape and that protrude to nut body 21 inside, wedge-shaped part 2122 and spring plate 2121 stack pile, it is placed on power transmission shaft 60 by wedge-shaped part 2122, the reciprocating motion of nut 20 drives power transmission shaft 60 to move back and forth；As an alternative, relative with wedge-shaped part 2122 on power transmission shaft 60 it is provided with lock groove (not shown), wedge-shaped part 2122 coordinates drive power transmission shaft 60 to move back and forth with lock groove, certainly, the connected mode of nut body 21 and power transmission shaft 60 is not limited to that, can according to specific circumstances with demand and determine.
These are only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.
Claims (10)
1. an actuating device, described actuating device includes periphery and sets threaded screw rod and have the nut of internal thread hole, described nut and described screw rod engagement rotation move back and forth along axis to realize described screw rod or described nut, it is characterized in that, described nut includes nut body and the annular boss being convexly equipped on described nut body end face, described annular boss has the peripheral surface for inlaid piece of mould splicing and the step surface of the typing for mould, described step surface is the portion end surface that described nut body end face is positioned at the periphery of the intersecting lens that described nut body end face is formed with described peripheral surface；Described screw rod has thread segment and is positioned at the linkage section of described thread segment one end, described screw flight section periphery is provided with a screens block, the end face of described annular boss is provided with a block, and when described screw rod screws in described nut, described screens block backstop is on described block.
2. actuating device as claimed in claim 1, it is characterized in that, described block is described annular boss end threadingly rotation direction spiral forming, and around described annular boss axis in the shape of a spiral, described block has the confined planes for contacting with described screens block to the end face of described annular boss.
3. actuating device as claimed in claim 1, it is characterised in that described annular boss is cylindrical, and described peripheral surface is a face of cylinder.
4. actuating device as claimed in claim 1, it is characterised in that described screens block is located at the root of described thread segment.
5. actuating device as claimed in claim 4, it is characterized in that, described screens block is wedge type, described screens block has the first surface contacted with described block and with described first surface back to the second surface arranged, and described second surface is for and being obliquely installed to outside to described first surface by described screw rod periphery.
6. a drive mechanism, described drive mechanism is in order to drive a power transmission shaft, it is characterised in that described drive mechanism also includes the actuating device described in any one of the claims 1～5, and one end of described power transmission shaft is installed in described nut body.
7. drive mechanism as claimed in claim 6, it is characterized in that, described drive mechanism includes the gear-box driven by driving device, described gear-box includes housing, be installed in described housing output port in and there is the bearing of installing hole, and the output shaft stretched out by described installing hole, the recessed mounting groove of described linkage section end face, described output shaft is adaptive with described mounting groove；Described screw rod linkage section is arranged on the installing hole of described bearing.
8. drive mechanism as claimed in claim 7, it is characterized in that, described linkage section periphery projection one baffle ring and end opens have some claws, the all elastic gathering of some described claws inserts in described installing hole inside and elasticity is opened and is stuck in away from the described bearing face of described annular boss, and described baffle ring backstop is on the described bearing face of described annular boss.
9. drive mechanism as claimed in claim 6, it is characterized in that, described drive mechanism includes the sleeve with accommodating hole, described nut body periphery is provided with some slide blocks of strip, some described slide blocks are all arranged along the axis direction of described nut body, described sleeve accommodating hole inwall is corresponding with some described slide blocks is arranged with some grooves, described nut body be inserted in described sleeve accommodating hole and some described slide blocks respectively with described groove fit.
10. drive mechanism as claimed in claim 6, it is characterized in that, described nut body offers the some elastic clamping blocks that elastic can be flared out and inwardly have certain clamping force away from the sidewall of the end of described annular boss, and described power transmission shaft is plugged in described nut body away from the end of described annular boss and be locked on some described elastic clamping blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620009459.2U CN205350239U (en) | 2016-01-06 | 2016-01-06 | Transmission and drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620009459.2U CN205350239U (en) | 2016-01-06 | 2016-01-06 | Transmission and drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350239U true CN205350239U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620009459.2U Active CN205350239U (en) | 2016-01-06 | 2016-01-06 | Transmission and drive mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN205350239U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195067A (en) * | 2016-08-29 | 2016-12-07 | 杭州南宇派科技有限公司 | The driving assembly and manufacture the manufacture method of this driving assembly of a kind of parking braking clamp |
| WO2017118172A1 (en) * | 2016-01-06 | 2017-07-13 | 深圳市兆威机电有限公司 | Transmission device and transmission mechanism |
-
2016
- 2016-01-06 CN CN201620009459.2U patent/CN205350239U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017118172A1 (en) * | 2016-01-06 | 2017-07-13 | 深圳市兆威机电有限公司 | Transmission device and transmission mechanism |
| CN106949216A (en) * | 2016-01-06 | 2017-07-14 | 深圳市兆威机电有限公司 | A kind of transmission device and transmission mechanism |
| CN106195067A (en) * | 2016-08-29 | 2016-12-07 | 杭州南宇派科技有限公司 | The driving assembly and manufacture the manufacture method of this driving assembly of a kind of parking braking clamp |
| CN106195067B (en) * | 2016-08-29 | 2018-08-28 | 杭州萧冠机械有限公司 | A kind of manufacturing method of the drive component of parking braking clamp |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong Shenzhen Baoan District Fuyong Street Dragon King Temple Industrial Park 18 Patentee after: Shenzhen mechatronics, mechatronics and Limited by Share Ltd Address before: 518000 Guangdong Shenzhen Baoan District Fuyong Street Dragon King Temple Industrial Park 18 Patentee before: Shenzhen Zhaowei Machinery & Electronics Co., Ltd. |