CN210528400U - Lifting device - Google Patents
Lifting device Download PDFInfo
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- CN210528400U CN210528400U CN201921012766.6U CN201921012766U CN210528400U CN 210528400 U CN210528400 U CN 210528400U CN 201921012766 U CN201921012766 U CN 201921012766U CN 210528400 U CN210528400 U CN 210528400U
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- lead screw
- screw rod
- gland
- linear bearing
- cavity
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Abstract
The utility model provides a lifter, including box, lead screw, linear bearing and promotion lead screw gland, the box is equipped with cavity one, the bottom of cavity one is equipped with step one, linear bearing is located step one, the lead screw passes the bottom of cavity one and cup joints with linear bearing, the upper end of cavity one is equipped with step two, it is located step two to promote the lead screw gland, the centre that promotes the lead screw gland is equipped with the through-hole, one side of through-hole is equipped with the lug, the upper end of lead screw is equipped with the recess, the recess cooperatees with the lug. The utility model relates to a lifter, lead screw rotate along fixed axis, do not take place slope and the dead phenomenon of card, and the operation is smooth and easy, increase of service life.
Description
Technical Field
The utility model relates to a elevating gear's technical field, in particular to riser.
Background
The worm gear screw rod lifter can be widely applied to various industries such as machinery, metallurgy, building, chemical engineering, medical treatment, culture and sanitation and the like. The lifting or propelling height can be accurately controlled and adjusted according to a certain program, can be directly driven by a motor or other power, can also be manually driven, and has the advantages of compact structure, small volume, light weight, wide power source, low noise, convenient installation, flexible use, multiple functions, multiple matching forms, high reliability, long service life and the like.
The lifter (as shown in fig. 1 and 2) in the existing turbine screw lifter generally comprises a main box body 1, a screw rod 2 and an oil-containing bearing 3 connected with the main box body 1 and the screw rod 2, wherein the oil-containing bearing 3 is used, in the screw rod 2, if the screw rod is impacted by external force and other factors in the rotating process, the axis of the up-and-down movement of the screw rod 2 changes, so that the screw rod 2 rotates in an inclined manner, the friction between the screw rod 2 and the oil-containing bearing 3 is increased, and finally the screw rod 2 and the oil-containing bearing 3 are clamped, the normal operation of the lifter is influenced, and the service life of the screw rod 2 and the oil-containing bearing 3 are also reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a riser, the lead screw rotates along fixed axis, does not take place slope and the dead phenomenon of card, and the operation is smooth and easy, increase of service life.
In order to achieve the purpose, the utility model provides a lifter, including box, lead screw, linear bearing and promotion lead screw gland, the box is equipped with cavity one, the bottom of cavity one is equipped with step one, linear bearing is located step one, the lead screw passes the bottom of cavity one and cup joints with linear bearing, the upper end of cavity one is equipped with step two, it is located step two to promote the lead screw gland, the centre of promoting the lead screw gland is equipped with the through-hole, one side of through-hole is equipped with the lug, the upper end of lead screw is equipped with the recess, the recess cooperatees with the lug.
By adopting the technical scheme, in the up-and-down movement process of the screw rod, the linear bearing is sleeved outside the screw rod, so that compared with an oil-containing bearing, the friction between the screw rod and the linear bearing is reduced, the service life of the screw rod and the linear bearing is prolonged, and the screw rod moves up and down on a fixed axis through the double guide effects of the groove on the screw rod, the lug on the lifting screw rod gland and the linear bearing, so that the inclination phenomenon is avoided, the clamping is avoided, the normal operation of the lifter is ensured, and the working efficiency is improved; meanwhile, the lifting screw rod gland is positioned in the step II, so that the box is neat and attractive, and the size of the box body is reduced.
Preferably, the lower end of the box body is convexly provided with a hollow cylinder, and the step is positioned in the hollow cylinder. Through setting up hollow cylinder at the lower extreme of box, cup jointing of lead screw and linear bearing is located hollow cylinder, and such setting is compared with current box, and volume reduction, weight reduction, cost reduction uses nimble convenience more.
Preferably, a plurality of outer edge portions are uniformly arranged along one circle of the lower end face of the lifting screw rod gland, a first bolt hole is formed in each outer edge portion, a semicircular through groove is formed above each connecting hole, a second bolt hole corresponding to the first bolt hole is formed in one circle of the second step, and the first bolt hole and the second bolt hole are fixedly connected through bolts. Through setting up outer edge portion, bolt hole one on the outer edge portion and bolt hole two on the step two pass through bolted connection, have reduced the external diameter that promotes the lead screw gland, reduce the material cost, connect stably.
Preferably, the device further comprises a limiting plate, and the lower end of the screw rod is connected with the limiting plate. The limiting plate is arranged to limit the upward movement of the screw rod, and on the other hand, the stability of connection between the screw rod and the lifting platform is enhanced.
The utility model has the advantages that: the linear bearing is sleeved outside the screw rod, so that the friction between the screw rod and the linear bearing is reduced and the service life of the screw rod and the linear bearing is prolonged compared with an oil-containing bearing, and the screw rod moves up and down on a fixed axis through the double guide effects of the groove on the screw rod, the lug on the lifting screw rod gland and the linear bearing, so that the inclination phenomenon is avoided, the clamping is avoided, the normal operation of the lifter is ensured, and the working efficiency is improved; meanwhile, the lifting screw rod gland is positioned in the step II, so that the box is neat and attractive, and the volume of the box body is reduced; through setting up hollow cylinder at the lower extreme of box, compare with current box, the volume reduction, weight reduction, cost reduction uses nimble more convenient.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic view of a structure of a related art lifter.
Fig. 2 is an exploded view of a prior art riser.
Fig. 3 is a schematic structural diagram of an embodiment of the present invention.
Fig. 4 is an exploded view of an embodiment of the present invention.
Fig. 5 is a first overall structural diagram of the embodiment of the present invention in operation.
Fig. 6 is an exploded view of fig. 5.
Fig. 7 is a partially enlarged view of a portion a in fig. 6.
Fig. 8 is a second schematic structural diagram of the present invention during operation.
In the figure: 1-lifter body, 2-worm gear mechanism, 3-motor, 4-control box, 11-box body, 12-screw rod, 13-linear bearing, 14-lifting screw rod gland, 15-outer edge part, 21-worm gear, 22-worm, 31-first clamping hole, 36-brushless motor, 37-motor shell, 38-front shell cover, 39-rear shell cover, 40-gap, 100-lifting platform, 101-storage battery, 111-first hollow, 112-second hollow, 113-hollow cylinder, 121-fourth groove, 122-limit plate, 141-through hole, 142-lug, 151-first bolt hole, 152-semicircular through groove, 211-first plane bearing, 212-thread, 221-second clamping hole, etc, 1111-step three, 1112-step two, 1121-step five, 1122-plane bearing two, 1131-step one, 1411-bolt hole two.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1 to 8, the present embodiment provides a lifter, which includes a lifter body 1, wherein the lifter body 1 includes a box 11, a lead screw 12, a linear bearing 13 and a lifting lead screw gland 14, a hollow first 111 is disposed in the box 11, in order to reduce friction between the lead screw 12 and the linear bearing 13 and prolong service lives of the lead screw 12 and the linear bearing 13, a hollow cylinder 113 is disposed at a lower end of the box 11 in a protruding manner, a bottom end of the hollow first 111 coincides with the hollow cylinder 113, a step first 1131 is disposed at a bottom end of the hollow cylinder 113, the linear bearing 13 is located in the step first 1131, an upper end portion of the lead screw 12 penetrates through the bottom end of the hollow first 111 to be sleeved with the linear bearing 13, and compared with an oil-containing bearing, friction between the lead screw 12 and the linear bearing 13 is reduced, and service lives of the lead screw 12 and the.
In order to enable the screw rod 12 to move up and down on a fixed axis without inclination and jamming, ensure the normal operation of the lifter 1 and improve the working efficiency, the upper end of the hollow first 111 is provided with a step two 1112, the lifting screw rod gland 14 is positioned in the step two 1112, the middle of the lifting screw rod gland 14 is provided with a through hole 141, one side of the through hole 141 is provided with a lug 142, the upper end of the screw rod 12 is provided with a groove four 121, and the groove four 121 is matched with the lug 142.
In order to reduce the outer diameter of the lifting screw rod gland 14, reduce the material cost and enhance the stability of connection of the lifting screw rod gland 14 and the box body 11, a plurality of outer edge portions 15 are uniformly arranged along a circle of the lower end surface of the lifting screw rod gland 14, a first bolt hole 151 is arranged in each outer edge portion 15, a semicircular through groove 152 is arranged above each first bolt hole 151, a second bolt hole 1411 corresponding to the first bolt hole 151 is arranged in a circle of the second step 1112, and the first bolt hole 151 and the second bolt hole 1411 are fixedly connected through bolts.
In order to limit the upward movement of the screw rod 12 and enhance the stability of the connection between the screw rod 12 and the lifting platform 100, a limiting plate 122 is arranged at the lower end of the screw rod 12, and the limiting plate 122 is connected with the lifting platform 100.
In order to realize the up-and-down movement of the screw rod 12, a worm and gear mechanism 2 is arranged in the box body 11, the worm and gear mechanism 2 comprises a worm gear 21 and a worm 22, a hollow I111 is arranged in the vertical direction of the box body 11, a step III 1111 is arranged in the middle of the hollow I111, a hollow II 112 is arranged in the horizontal direction of the box body 11, the hollow II 112 is communicated with the middle of the hollow I111, the worm 22 is positioned in the hollow II 112, step V1121 is arranged at the left end and the right end of the hollow II 112, a plane bearing II 1122 is arranged in the step V1121, the plane bearing II 1122 is sleeved at the two ends of the worm 22, the worm gear 21 is positioned in the step III 1111, the plane bearing I211 is arranged at the upper end and the lower end of the worm gear 21, threads 212 are arranged on the circumference of the,
in order to provide power for rotation of the worm wheel 21 and the worm 22, the motor 3 is arranged on the right side of the worm wheel 21, the motor 3 comprises a brushless motor 36, a motor shell 37, a shell front cover 38 and a shell rear cover 39, the brushless motor 36 is located in the motor shell 37, a gap 40 is arranged between the brushless motor 36 and the motor shell 37, the shell front cover 38 is clamped in the gap 40, a first clamping hole 31 is formed in a motor shaft of the brushless motor 36, a second clamping hole 221 is formed in the worm rod 22, and two ends of the flat key 23 are located in the first clamping hole 31 and the second clamping hole 221 to connect the motor shaft with the worm 22, so that the motor shaft can drive the worm 22 to rotate, further drive the worm wheel 21 to rotate, and achieve.
During operation, at first, be connected lower terminal surface and lift platform 100 of limiting plate 122, place the battery in lift platform 100, when needing to get 101 out with the battery, starter motor 3, motor 3 rotates the back and drives turbine 21, worm 22 rotates, lead screw 12 passes through the rotation of turbine 21 and moves down, drive lift platform 100 and move down to required position, general control box control motor 3 stop work, if lift platform 100 one end is in the tilt state, then control box 4 control motor 3 continues to work a period, can take out battery 101.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (4)
1. An elevator characterized by: including box, lead screw, linear bearing and promotion lead screw gland, the box is equipped with cavity one, the bottom of cavity one is equipped with step one, linear bearing is located step one, the lead screw passes the bottom of cavity one and cup joints with linear bearing, the upper end of cavity one is equipped with step two, it is located step two to promote the lead screw gland, the centre that promotes the lead screw gland is equipped with the through-hole, one side of through-hole is equipped with the lug, the upper end of lead screw is equipped with the recess, the recess cooperatees with the lug.
2. The lifter according to claim 1, characterized in that: the lower end of the box body is convexly provided with a hollow cylinder, and the step is positioned in the hollow cylinder.
3. The lifter according to claim 1, characterized in that: the lifting screw rod gland is characterized in that a plurality of outer edge portions are evenly arranged on one circle of the lower end face of the lifting screw rod gland, a first bolt hole is formed in each outer edge portion, a semicircular through groove is formed in the upper portion of each bolt hole, a second bolt hole corresponding to the first bolt hole is formed in one circle of the second step, and the first bolt hole and the second bolt hole are fixedly connected through bolts.
4. The lifter according to claim 1, characterized in that: the lower end of the screw rod is connected with the limiting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921012766.6U CN210528400U (en) | 2019-06-21 | 2019-06-21 | Lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921012766.6U CN210528400U (en) | 2019-06-21 | 2019-06-21 | Lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210528400U true CN210528400U (en) | 2020-05-15 |
Family
ID=70596390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921012766.6U Active CN210528400U (en) | 2019-06-21 | 2019-06-21 | Lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210528400U (en) |
-
2019
- 2019-06-21 CN CN201921012766.6U patent/CN210528400U/en active Active
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