CN212532133U - External elevator of motor - Google Patents
External elevator of motor Download PDFInfo
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- CN212532133U CN212532133U CN202020767027.4U CN202020767027U CN212532133U CN 212532133 U CN212532133 U CN 212532133U CN 202020767027 U CN202020767027 U CN 202020767027U CN 212532133 U CN212532133 U CN 212532133U
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Abstract
The utility model discloses an external motor elevator, which comprises an outer column, a middle column and an inner column which are sleeved together, wherein a fixed screw rod and a motor are fixed on the top wall of the outer column, a rotary screw nut is arranged on the top plate of the middle column, and the fixed screw rod is meshed with the rotary screw nut; an output shaft of the motor is connected with a spline shaft through a coupler, a top plate of the center pillar is provided with a spline nut, and the spline shaft and the spline nut are installed in a matched mode; a ball screw is arranged on the top plate of the middle column, a screw nut is arranged on the top plate of the inner column, and the ball screw is meshed with the screw nut; the spline shaft is connected with the fixed screw rod and the ball screw rod through a belt pulley and a synchronous belt. Has the characteristics of compact structure, stable force transmission, large working range, rapid action and the like. And the elevator can transmit pulling force and pushing force, and can be used as an electric push-pull rod. The problem that the existing electric elevator can only transmit pulling force or pushing force is solved, and the application range of the electric elevator is effectively enlarged.
Description
Technical Field
The utility model relates to an electric lift equipment especially relates to an external lift of motor.
Background
With the long-term development of manufacturing industry, the trend of using machines instead of manpower is increasing. In this context, it is becoming more and more common to use electric elevator belts to lift articles or use elevators as transmission members instead of human power. The functions of the conventional electric lifter are generally single, and the conventional electric lifter can only be used for lifting; the essential reason is that the transmission system can only transmit pushing force or pulling force. Therefore, how to make the elevator transmit the pulling force and the pushing force is the key for enriching the functions of the elevator and expanding the application range of the elevator.
The electric elevator in the prior art can only be used for lifting, and cannot transmit pulling force and pushing force, so that the function and the application range of the elevator are limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an external lift of motor.
The utility model aims at realizing through the following technical scheme:
the utility model relates to an elevator with an external motor,
the device comprises an outer column, a middle column and an inner column which are sleeved together, wherein a fixed screw rod and a motor are fixed on the top wall of the outer column, the fixed screw rod downwards sequentially penetrates through the top plate of the middle column and the top plate of the inner column, a rotary screw nut is arranged on the top plate of the middle column, the fixed screw rod is meshed with the rotary screw nut, and a revolute pair is arranged between the top plate of the middle column and the rotary screw nut;
an output shaft of the motor is connected with a spline shaft through a coupler, a spline nut is mounted on a top plate of the center pillar, the spline shaft and the spline nut are mounted in a matched mode, and a revolute pair is arranged between the top plate of the center pillar and the spline nut;
a ball screw is arranged on the top plate of the middle column, the ball screw downwards penetrates through the top plate of the inner column, a screw nut is arranged on the top plate of the inner column, and the ball screw is meshed with the screw nut;
the spline nut is connected with the rotary lead screw nut and the ball screw through a belt pulley and a synchronous belt.
By the foregoing the utility model provides a technical scheme can see out, the embodiment of the utility model provides an external lift of motor has compact structure, stably passes power, working range is big, characteristics such as action rapidly. And the elevator can transmit pulling force and pushing force, and can be used as an electric push-pull rod. The problem that the existing electric elevator can only transmit pulling force or pushing force is solved. Effectively enlarging the application range of the electric elevator.
Drawings
FIG. 1 is a schematic view of an external motor elevator according to an embodiment of the present invention
In the figure:
the device comprises an outer column 1, a middle column 2, an inner column 3, a motor 4, a coupler 5, a spline shaft 6, a spline nut 7, a belt pulley 8, a synchronous belt 9, a screw nut 10, a ball screw 11, a fixed screw 12, a flange connecting plate 13, a rotary screw nut 14 and a nylon cushion 15.
Detailed Description
Embodiments of the present invention will be described in further detail below. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art.
The utility model discloses an external lift of motor, the concrete implementation of its preferred is:
the device comprises an outer column, a middle column and an inner column which are sleeved together, wherein a fixed screw rod and a motor are fixed on the top wall of the outer column, the fixed screw rod downwards sequentially penetrates through the top plate of the middle column and the top plate of the inner column, a rotary screw nut is arranged on the top plate of the middle column, the fixed screw rod is meshed with the rotary screw nut, and a revolute pair is arranged between the top plate of the middle column and the rotary screw nut;
an output shaft of the motor is connected with a spline shaft through a coupler, a spline nut is mounted on a top plate of the center pillar, the spline shaft and the spline nut are mounted in a matched mode, and a revolute pair is arranged between the top plate of the center pillar and the spline nut;
a ball screw is arranged on the top plate of the middle column, the ball screw downwards penetrates through the top plate of the inner column, a screw nut is arranged on the top plate of the inner column, and the ball screw is meshed with the screw nut;
the spline nut is connected with the rotary lead screw nut and the ball screw through a belt pulley and a synchronous belt.
The nut sleeve is installed on the top plate of the middle column through a flange connecting plate, the fixed screw rod is fixedly installed on the top plate of the outer column through a screw, and the ball screw rod is installed on the top plate of the middle column through a bearing and a baffle.
The motor is installed on the roof of outer post, spline nut, rotation type screw nut, hold-in range and band pulley are all arranged in the center pillar roof with the space between the interior post roof, the screw nut embedding in the roof of interior post.
The outer diameter and the lead of the ball screw are the same as those of the fixed screw, and the transmission ratio between the belt wheels is 1: 1.
The spline shaft, the ball screw and the fixed screw are arranged in a triangular shape on the plane, and the spline shaft is longitudinally provided with a sliding groove.
And nylon pads are respectively arranged between the inner wall of the outer column and the outer wall of the middle column and between the inner wall of the middle column and the outer wall of the inner column.
The utility model discloses an external lift of motor has compact structure, stable biography power, working range is big, characteristics such as action rapidly. And the elevator can transmit pulling force and pushing force, and can be used as an electric push-pull rod. The problem that the existing electric elevator can only transmit pulling force or pushing force is solved. Effectively enlarging the application range of the electric elevator.
The utility model discloses a show the effect and be:
the electric elevator adopts a transmission mode of combining the spline shaft, the ball screw and the synchronous belt, and the stability and the accuracy of the elevator in the process of lifting again are ensured.
In the lifting process, the relative sliding speed of the middle column and the outer column is the same as that of the inner column and the middle column, so that the control strategy of the motor is greatly simplified.
The specific embodiment is as follows:
as shown in fig. 1, the device comprises an outer column 1, a middle column 2, an inner column 3, a motor 4, a coupling 5, a spline shaft 6, a spline nut 7, a belt pulley 8, a synchronous belt 9, a screw nut 10, a ball screw 11, a fixed screw 12, a flange connecting plate 13, a rotary screw nut 14, a nylon cushion 15 and the like.
In the elevator with the external motor, the elevating process is essentially the relative sliding among the outer column 1, the middle column 2 and the inner column 3; during the lifting process, the relative sliding speed of the central column 2 and the outer column 1 is the same as the relative sliding speed of the inner column 3 and the central column 2. The lifting motion of the lifter is controlled by controlling the rotation direction of the motor.
As shown in fig. 1, the motor 4 first rotates the spline shaft 6 and the spline nut 7 through the coupling 5, and then simultaneously rotates the rotary screw nut 14 and the ball screw 11 through the pulley and the timing belt.
As shown in fig. 1, the nut sleeves of the rotary lead screw nut 10 and the spline nut 7 are connected to the center pillar by a flange connecting plate 13. Since the fixed screw 12 is fixedly connected with the outer column 1, when the pulley drives the rotary screw nut 14 to rotate, the rotary screw nut 14 will drive the central column 2 to slide relative to the outer column 1 through the flange connecting plate 13. Meanwhile, as the screw nut 10 is fixedly connected with the inner column 3, when the pulley drives the ball screw 11 to rotate, the screw nut 10 will drive the inner column 3 to slide relative to the middle column 2.
In summary, the elevator with the external motor of the utility model realizes the lifting movement of the elevator by the transmission mode of combining the ball screw, the ball spline and the synchronous belt; and the elevator can transmit pulling force and pushing force, and can be used as an electric push-pull rod. The problem that the existing electric elevator can only transmit pulling force or pushing force is solved. Effectively enlarging the application range of the electric elevator. Through the installation mode that the motor is external and on the outer post, the effectual degree of difficulty that has reduced the motor and walk the line.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. An elevator with an external motor is characterized by comprising an outer column, a middle column and an inner column which are sleeved together, wherein a fixed screw rod and a motor are fixed on the top wall of the outer column, the fixed screw rod downwards sequentially penetrates through a top plate of the middle column and a top plate of the inner column, a rotary screw nut is arranged on the top plate of the middle column, the fixed screw rod is meshed with the rotary screw nut, and a revolute pair is arranged between the top plate of the middle column and the rotary screw nut;
an output shaft of the motor is connected with a spline shaft through a coupler, a spline nut is mounted on a top plate of the center pillar, the spline shaft and the spline nut are mounted in a matched mode, and a revolute pair is arranged between the top plate of the center pillar and the spline nut;
a ball screw is arranged on the top plate of the middle column, the ball screw downwards penetrates through the top plate of the inner column, a screw nut is arranged on the top plate of the inner column, and the ball screw is meshed with the screw nut;
the spline nut is connected with the rotary lead screw nut and the ball screw through a belt pulley and a synchronous belt.
2. The elevator with the external motor as claimed in claim 1, wherein the rotary screw nut and the spline nut are each provided with a nut sleeve on the outside thereof, a revolute pair is provided between the nut sleeve and the rotary screw nut and the spline nut, the nut sleeve is mounted on the top plate of the center pillar by a flange connection plate, the fixed screw is fixedly mounted on the top plate of the outer pillar by a screw, and the ball screw is mounted on the top plate of the center pillar by a bearing and a baffle plate.
3. The elevator with the external motor as claimed in claim 2, wherein the motor is installed on the top plate of the outer column, the spline nut, the rotary screw nut, the synchronous belt and the pulley are disposed in the space between the top plate of the inner column and the top plate of the inner column, and the screw nut is embedded in the top plate of the inner column.
4. The elevator with external motor as claimed in claim 3, wherein the ball screw and the fixed screw have the same outer diameter and lead, and the transmission ratio between the pulleys is 1: 1.
5. The elevator with an external motor as claimed in claim 4, wherein the spline shaft, the ball screw and the lead screw are arranged in a triangular shape on a plane, and the spline shaft is longitudinally provided with a sliding groove.
6. The elevator with the external motor as claimed in any one of claims 1 to 5, wherein nylon pads are disposed between the inner wall of the outer column and the outer wall of the center column and between the inner wall of the center column and the outer wall of the inner column, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020767027.4U CN212532133U (en) | 2020-05-11 | 2020-05-11 | External elevator of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020767027.4U CN212532133U (en) | 2020-05-11 | 2020-05-11 | External elevator of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212532133U true CN212532133U (en) | 2021-02-12 |
Family
ID=74540370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020767027.4U Active CN212532133U (en) | 2020-05-11 | 2020-05-11 | External elevator of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212532133U (en) |
-
2020
- 2020-05-11 CN CN202020767027.4U patent/CN212532133U/en active Active
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