CN210715803U - High-precision lead screw of silence promotes structure - Google Patents
High-precision lead screw of silence promotes structure Download PDFInfo
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- CN210715803U CN210715803U CN201921321009.7U CN201921321009U CN210715803U CN 210715803 U CN210715803 U CN 210715803U CN 201921321009 U CN201921321009 U CN 201921321009U CN 210715803 U CN210715803 U CN 210715803U
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- lead screw
- sliding block
- screw rod
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Abstract
The utility model relates to a high-accuracy lead screw of silence promotes structure, including the motor, the output of motor passes through shaft coupling and lead screw one end swing joint, and the lead screw is close to the one end of motor is provided with first bearing subassembly, and the other end of lead screw is provided with second bearing subassembly, and the motor passes through shaft coupling drive lead screw at first bearing subassembly and the inside rotation of second bearing subassembly, installs on the track on the bearing base among the first bearing subassembly, the lead screw with the track is parallel, and threaded connection has slider assembly on the lead screw, and slider assembly keeps away from the one end of first bearing subassembly and is connected with the lifter, and the lifter cover is established on the lead screw, second bearing subassembly surface and lifter internal surface butt, the rotatory slider assembly and the lifter of driving of. The utility model relates to a lead screw in biax center promotes structure, and the lead screw passes through first bearing subassembly and connects the track, stabilizes the displacement of lifter on the lead screw through track cooperation second bearing subassembly.
Description
Technical Field
The utility model relates to a lead screw motion technical field especially relates to a high-accuracy lead screw of silence promotes structure.
Background
The lifting screw rod is widely applied to the industries of machinery, metallurgy, building and the like, can control the rising and falling height of the screw rod according to a certain program, and generally drives the screw rod to move up and down by a motor.
Various direct current motor push rods exist in the existing market, a screw rod-like technology is adopted, the existing direct current motor push rods are unstable, the noise is high, the motion amount is large, the control of the screw rod displacement amount is not accurate enough, and particularly in occasions needing accurate control of the screw rod displacement amount, such as photography, high-requirement industries of medical treatment and the like, the existing screw rod structure cannot meet the use requirements.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a silence high-precision lead screw pushing structure aiming at the condition that the noise of the current lead screw pushing structure is large and the lead screw displacement control is not accurate enough, so that the noise emitted in the motion process of the lead screw can be effectively reduced, and the displacement of the lead screw can be accurately controlled.
A silent high-precision lead screw pushing and lifting structure comprises a motor, wherein the output end of the motor is movably connected with one end of a lead screw through a coupler, a first bearing assembly is arranged at one end, close to the motor, of the lead screw, a second bearing assembly is arranged at the other end of the lead screw, the first bearing assembly comprises a bearing base and a first bearing, the first bearing is installed on the bearing base, the motor drives the lead screw to rotate inside the first bearing assembly and the second bearing assembly through the coupler, the bearing base is connected with a track, the lead screw is parallel to the track, a sliding block assembly is in threaded connection with the lead screw, the lead screw rotates to drive the sliding block assembly to move on the track, one end, far away from the first bearing assembly, of the sliding block assembly is connected with a lifting rod sleeved on the lead screw, and a guide ring is arranged at one end, close to, the outer surface of the second bearing assembly is abutted against the inner surface of the lifting rod, the guide ring is abutted against the outer surface of the lifting rod, and the sliding block assembly drives the lifting rod to displace along the guide ring.
Preferably, the lifting device further comprises a mounting assembly, the mounting assembly comprises an upper shell and a bottom shell, one end, far away from the motor, of the lifting rod penetrates through the bottom shell to be connected with the upper shell, and the outer shell is connected with the bottom shell through bolts.
Preferably, the second bearing assembly consists of a second lock nut and a second bearing, the second lock nut is in threaded connection with the screw rod, and an outer ring of the second bearing abuts against the inner surface of the lifting rod.
Preferably, the guide ring and the outer ring of the second bearing are made of POM.
Preferably, the vertical plate and the bottom plate form a U-shaped bearing base, a bolt penetrates through the bottom plate to be connected with the rail, and a stopper is arranged on the vertical plate close to one end of the sliding block assembly.
Preferably, the sliding block assembly comprises a sliding block shell, a sliding block base and a sliding block nut, a groove is formed in the sliding block shell, the sliding block nut is installed in the groove and connected with the screw rod, and the sliding block shell is abutted to the rail through the sliding block base.
Preferably, one end of the lifting rod, which is connected with the sliding block assembly, is provided with a notch, one end of the lifting rod is clamped in the groove, and the notch is abutted to the sliding block base.
Preferably, the first bearing assembly further comprises a first lock nut, the first lock nut is in threaded connection with the screw rod, and the first lock nut abuts against one end, close to the motor, of the first bearing.
Preferably, the lifting rod is sleeved with a protective cover, and the protective cover is connected with the track through a bolt.
Preferably, the lifting rod is made of aluminum or stainless steel.
The utility model discloses an useful part lies in: 1. the utility model relates to a screw rod of double axle center pushes away and rises structure, and the lead screw passes through first bearing subassembly and connects the track, stabilizes the displacement of lifter on the lead screw through track and second bearing subassembly, prevents that the lifter from keeping away from the one end of motor and taking place to rock the skew, and accurate control lifting range to can prevent that the lead screw pushes away and rises the device that the structure drove the lift and take place to rock; 2. the motor drives the screw rod to rotate so as to drive the lifting rod to move on the rail, the noise is low in the displacement process, and the noise reduction effect is achieved.
Drawings
Fig. 1 is an exploded schematic view of a silent high-precision screw rod pushing structure according to an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an exploded view of a mute high-precision lead screw pushing-up structure from another view angle;
FIG. 4 is an enlarged view of portion B of FIG. 3;
FIG. 5 is an exploded schematic view of a slider assembly;
FIG. 6 is a perspective view of a slider housing;
FIG. 7 is a perspective view of the first bearing assembly;
fig. 8 is a perspective view of the lift pins.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1-2, a silent high-precision lead screw pushing and lifting structure comprises a motor 1, an output end of the motor 1 is movably connected with one end of a lead screw 3 through a coupler 2, a first bearing assembly 4 is arranged at one end of the lead screw 3 close to the motor 1, a second bearing assembly 100 is arranged at the other end of the lead screw 3, the first bearing assembly 4 comprises a bearing base 41 and a first bearing 42, the first bearing 42 is mounted on the bearing base 41, the motor 1 drives the lead screw 3 to rotate inside the first bearing assembly 4 and the second bearing assembly 100 through the coupler 2, the bearing base 41 is connected with a rail 5, the lead screw 3 is parallel to the rail 5, a slider assembly 6 is connected with the lead screw 3 through threads, the lead screw 3 rotates to drive the slider assembly 6 to displace on the rail 5, one end of the slider assembly 6, which is far away from the first bearing assembly 4, is sleeved with a lifting device on the lead screw 3 The lifting rod 7 is connected, a guide ring 51 is arranged at one end of the track 5 close to the second bearing assembly 100, the outer surface of the second bearing assembly 100 is abutted against the inner surface of the lifting rod 7, the guide ring 51 is abutted against the outer surface of the lifting rod 7, and the slide block assembly 6 drives the lifting rod 7 to displace along the guide ring 51. Specifically, 3 one end of lead screw is fixed in bearing 42, and when motor 1 was under the drive of power, through shaft coupling 2 drive lead screw 3 rotatory, lead screw 3 was when bearing 42 internal rotation, lead screw 3 was through bearing 42 rotary motion, the noise that sends when reducing lead screw 3 rotatory. The screw rod 3 rotates to drive the sliding block assembly 6 which is in threaded connection with the screw rod 3 to move up and down, and meanwhile, the sliding block assembly 6 drives the lifting rod 7 which is connected with the sliding block assembly to move up and down. Further, bearing pedestal 41 passes through bolted connection with track 5, slider assembly 6 shifts on track 5, and then drive the lifter 7 displacement rather than being connected, simultaneously in order to avoid lifter 7 to rock at the displacement in-process, the one end that is close to second bearing assembly 100 at track 5 is provided with guide ring 51, lifter 7 and guide ring 51 displacement from top to bottom behind the butt, slider assembly 6 and guide ring 51 can make lifter 7 avoid direct and track 5 contact simultaneously, frictional force when reducing lifter 7 displacement from top to bottom, and then play the effect of making an uproar. In addition, the rail 5 and the screw rod 3 simultaneously serve as guide shafts of the lifting rod 7 and the sliding assembly 6, and play a role of double-shaft center guide. In addition, in order to avoid the problem that one end of the lifting rod 7, which is far away from the motor 1, is prone to shaking during lifting, the second bearing assembly 100 is correspondingly arranged on the screw rod 3, the outer surface of the second bearing assembly 100 abuts against the lifting rod 7, and the inner surface of the second bearing assembly 100 abuts against the screw rod 3, so that when the lifting rod 7 is too high, one end of the lifting rod 7, which is far away from the motor 1, is unstable, the shaking is prone to occurring, and then the lifting height of the lifting rod 7 is precisely controlled.
As shown in fig. 1, the device further comprises a mounting assembly 8, the mounting assembly 8 comprises an upper shell 81 and a bottom shell 82, one end of the lifting rod 7, which is far away from the motor 1, penetrates through the bottom shell 82 and is connected with the upper shell 81, and the outer shell 81 is connected with the bottom shell 82 through a bolt. Specifically, the mounting assembly 8 is disposed at one end of the lifting rod 7 far away from the motor 1, so as to avoid directly contacting with a component to be lifted (not shown in the figure) through the lifting rod 7, and avoid external dust and the like from entering the inside of the lifting rod 7, which leads to increase of friction between the lifting rod 7 and the second bearing assembly 100.
As shown in fig. 1, the second bearing assembly 100 is composed of a second lock nut 101 and a second bearing 102, the second lock nut 101 is screwed with the lead screw 3, and the outer ring of the second bearing 102 abuts against the inner surface of the lift lever 7. Specifically, the screw 3 rotates inside the second bearing 102 and the first bearing 42, and in order to avoid the second bearing 102 from shifting when the screw rotates, the second lock nut 101 is cooperatively arranged on the screw 3 to prevent the second bearing 102 from shifting on the screw 3.
As shown in fig. 1, the guide ring 51 and the outer ring of the second bearing 102 are made of POM. Specifically, the POM material has a smooth surface, and when the lift lever 7 abuts against the guide ring 81 and the second bearing 102, the friction force between the lift lever 7 and the guide ring 81 and between the lift lever and the second bearing 102 can be effectively reduced.
As shown in the figures, the vertical plate 411 and the bottom plate 412 form a U-shaped bearing base 41, a bolt penetrates through the bottom plate 412 to be connected with the track 5, and the vertical plate 411 near one end of the slider assembly 6 is provided with a stopper 200. Specifically, shaft coupling 2 passes through lead screw 3 and motor 1 card solid between two risers 411, and first bearing 42 is installed in the riser 411 that is close to slider assembly 6, and motor 1 passes through shaft coupling 2 drive lead screw 3 and at the inside rotation of first bearing 42 and second bearing 102, and then drives slider assembly 6 and shift on track 5, in order to prevent that slider assembly 6 is too close to bearing base 41 sets up stopper 200 on riser 411, and stopper 200 can prevent that slider assembly 6 from excessively moving towards motor 1 one end.
As shown in fig. 1 to 3, the slider assembly 6 includes a slider housing 61, a slider base 62 and a slider nut 63, a groove 611 is provided in the slider housing 61, the slider nut 63 is mounted in the groove 611 and connected to the lead screw 3, and the slider housing 61 abuts against the rail 5 through the slider base 62. Specifically, the slider nut 63 is in threaded connection with the lead screw 3, so that when the lead screw 3 rotates, the slider nut 63 drives the whole slider assembly 6 to move on the lead screw, and then the lifting rod 7 is pushed to move up and down.
As shown in fig. 4, a gap 71 is formed at one end of the lifting rod 7 connected with the slider assembly 6, one end of the lifting rod 7 is clamped in the groove 611, and the gap 71 abuts against the slider base 62. Specifically, the lifting rod 7 is directly clamped in the groove 611 of the slider shell 61, and then the lifting rod 7 is driven to move on the rail 5 through the slider assembly 6.
As shown in fig. 1-2, the first bearing assembly 4 further includes a first lock nut 43, the first lock nut 43 is in threaded connection with the lead screw 3, and the first lock nut 43 abuts against one end of the first bearing 42 close to the motor 1. Specifically, at the one end that first bearing 42 is close to motor 1, install lock nut 43 on the lead screw 3, prevent that lead screw 3 when the rotation in first bearing 42, first bearing 42 is because lead screw 3 is rotatory to take place the skew, avoids first bearing 42 from the interior roll-off of bearing base 41.
As shown in fig. 1, a protective cover 9 is sleeved outside the lifting rod 7, and the protective cover 9 is connected with the rail 5 through a bolt. Specifically, the protective cover 9 is used for protecting the push-up structure therein, and the push-up structure is not directly impacted by external force, so that the shapes of the screw rod 1, the rail 5 and the lifting rod 7 are deformed, and the screw rod cannot be lifted normally.
As shown in fig. 1, the lift pins 7 are made of aluminum or stainless steel. Specifically, the inner and outer surfaces of the lifter 7 made of aluminum or stainless steel are smooth, so that the friction between the lifter 7 and the guide ring 81 and the second bearing 102 can be reduced.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a high-accuracy lead screw of silence promotes structure which characterized in that: the device comprises a motor, wherein the output end of the motor is movably connected with one end of a screw rod through a coupler, a first bearing assembly is arranged at one end, close to the motor, of the screw rod, a second bearing assembly is arranged at the other end of the screw rod, the first bearing assembly comprises a bearing base and a first bearing, the first bearing is installed on the bearing base, the motor drives the screw rod to rotate inside the first bearing assembly and the second bearing assembly through the coupler, the bearing base is connected with a track, the screw rod is parallel to the track, a sliding block assembly is in threaded connection with the screw rod, the screw rod rotates to drive the sliding block assembly to move on the track, one end, away from the first bearing assembly, of the sliding block assembly is connected with a lifting rod sleeved on the screw rod, and a guide ring is arranged at one end, close to, the outer surface of the second bearing assembly is abutted against the inner surface of the lifting rod, the guide ring is abutted against the outer surface of the lifting rod, and the sliding block assembly drives the lifting rod to displace along the guide ring.
2. The high-precision lead screw pushing and lifting structure of claim 1, wherein: still include the installation component, the installation component includes epitheca and drain pan, the lifter is kept away from the one end of motor runs through the drain pan with the epitheca is connected, the epitheca with the drain pan passes through bolted connection.
3. The high-precision lead screw pushing and lifting structure of claim 1, wherein: the second bearing assembly consists of a second lock nut and a second bearing, the second lock nut is in threaded connection with the screw rod, and an outer ring of the second bearing is abutted to the inner surface of the lifting rod.
4. A silent high-precision screw rod pushing and lifting structure as claimed in claim 3, wherein: the guide ring and the outer ring of the second bearing are made of POM.
5. The high-precision lead screw pushing and lifting structure of claim 4, wherein: the vertical plate and the bottom plate form a U-shaped bearing base, a bolt penetrates through the bottom plate to be connected with the rail, and a stopper is arranged on the vertical plate close to one end of the sliding block assembly.
6. The high-precision lead screw pushing and lifting structure of claim 1, wherein: the sliding block assembly comprises a sliding block shell, a sliding block base and a sliding block nut, wherein a groove is formed in the sliding block shell, the sliding block nut is installed in the groove and connected with the screw rod, and the sliding block shell is abutted to the rail through the sliding block base.
7. The high-precision lead screw pushing and lifting structure of claim 6, wherein: the lifting rod with the slider component is connected one end and is had the breach, lifting rod one end joint is in the recess, the breach with the slider base butt.
8. The high-precision lead screw pushing and lifting structure of claim 1, wherein: the first bearing assembly further comprises a first locking nut, the first locking nut is in threaded connection with the screw rod, and the first locking nut is abutted to one end, close to the motor, of the first bearing.
9. The high-precision lead screw pushing and lifting structure of claim 1, wherein: the lifter overcoat is equipped with the protection casing, the protection casing pass through the bolt with rail connection.
10. A silent high-precision screw rod pushing and lifting structure as claimed in any one of claims 1 to 9, wherein: the lifting rod is made of aluminum or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921321009.7U CN210715803U (en) | 2019-08-15 | 2019-08-15 | High-precision lead screw of silence promotes structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921321009.7U CN210715803U (en) | 2019-08-15 | 2019-08-15 | High-precision lead screw of silence promotes structure |
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| Publication Number | Publication Date |
|---|---|
| CN210715803U true CN210715803U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921321009.7U Active CN210715803U (en) | 2019-08-15 | 2019-08-15 | High-precision lead screw of silence promotes structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747095A (en) * | 2020-12-29 | 2021-05-04 | 苏州天准科技股份有限公司 | Drive assembly and automatic visual detection device of flexible circuit board |
-
2019
- 2019-08-15 CN CN201921321009.7U patent/CN210715803U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747095A (en) * | 2020-12-29 | 2021-05-04 | 苏州天准科技股份有限公司 | Drive assembly and automatic visual detection device of flexible circuit board |
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Effective date of registration: 20230802 Address after: Floor 1, Science and Innovation Incubation Building, Sinovation Ventures, No. 1189, Jingdong Avenue, Nanchang Hi tech Industrial Development Zone, Jiangxi 330000 Patentee after: Jiangxi Shuihaier Digital Technology Co.,Ltd. Address before: Room 802 A8619, Building 10, Shenzhen Bay Science and Technology Ecological Park, No. 10 Gaoxin South 9th Road, Gaoxin Community, Yuehai Street, Nanshan District, Shenzhen City, Guangdong Province, 518000 Patentee before: Shenzhen blueprints Technology Co.,Ltd. |