CN220412768U

CN220412768U - Automatic lifting mechanism for screw rod transmission

Info

Publication number: CN220412768U
Application number: CN202321717413.2U
Authority: CN
Inventors: 沈志伟; 邹学明
Original assignee: Suzhou Leqi Intelligent Technology Co ltd
Current assignee: Suzhou Leqi Intelligent Technology Co ltd
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2024-01-30
Anticipated expiration: 2033-07-03

Abstract

The utility model discloses a screw rod transmission automatic lifting mechanism which comprises a supporting base, a lifting table, a guide post, a screw rod, a nut and a driving device, wherein the guide post is vertically arranged on the upper plane of the supporting base, the lifting table is sleeved on the guide post, the nut is arranged at the bottom of the lifting table, the screw rod is arranged in the lifting table, the lower end of the screw rod is sleeved in the nut, the bottom of the screw rod is vertical to the supporting base and extends to the lower part of the supporting base, the driving device matched with the screw rod is arranged at the bottom of the supporting base, pulleys are respectively arranged at the front side and the rear side of the lifting table, and the pulleys are attached to the side surfaces of the guide post. Through the limit fit of the pulley and the guide post, the lifting platform vertically reciprocates on the guide post through the pulley, and the pulley further keeps the lifting platform stably running and can reduce movement friction.

Description

Automatic lifting mechanism for screw rod transmission

Technical Field

The utility model relates to a screw drive automatic lifting mechanism, and belongs to the technical field of lifting.

Background

Elevators are widely used in production and life, and there are many types of elevators to accommodate the needs of different situations. The ball screw is an ideal product for converting rotary motion into linear motion or converting linear motion into rotary motion, so the ball screw can be used as a power system of an elevator to improve up-down lifting motion.

The screw rod lifter usually takes off and land in the vertical direction, is driven by the motor, and is convenient to operate and good in flexibility. The ball of screw lift sets up in the bottom intermediate position of lift platform generally, and lift platform relies on ball alone to support, and stability is poor, and the skew easily.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model aims to provide a screw drive automatic lifting mechanism, which solves the problems of poor stability and easy deflection of a lifting platform in the prior art.

In order to achieve the above object, the present utility model adopts the following technical scheme:

a screw drive automatic lifting mechanism comprises a supporting base, a lifting table, a guide pillar, a screw, a nut and a driving device;

the guide post is vertically arranged on the upper plane of the supporting base, the lifting table is sleeved on the guide post, and the bottom of the lifting table is provided with a nut;

the lead screw sets up in the elevating platform, and the cover of lead screw lower extreme is established in the nut, and the lead screw bottom is mutually perpendicular and extend to the below of supporting the base with supporting the base, and the drive arrangement with lead screw looks adaptation is installed to supporting the base bottom.

Further, the number of the guide posts is two, and the guide posts are symmetrically arranged at the left side and the right side of the lifting table.

Further, pulleys are mounted on the front side and the rear side of the lifting table, and the pulleys are attached to the side faces of the guide posts.

Further, the top end of the screw rod is fixed in the mounting plate, and the mounting plate is fixedly connected to the top end of the lifting table.

Further, the driving device comprises a driven wheel, a transmission belt, a driving wheel and a driving element,

the bottom end of the screw rod is connected with a driven wheel, the driving element is arranged on the supporting base, the tail end of the driving element extends out of the supporting base and is fixedly connected with a driving wheel, and the driving wheel is connected with the driven wheel through a transmission belt.

Further, the driving element is a gear motor.

The utility model has the beneficial effects that:

1. the guide post is arranged in the lifting platform, so that the stability of the lifting platform during lifting or descending can be improved;

2. through the limit fit of the pulley and the guide post, the lifting platform vertically reciprocates on the guide post through the pulley, and the pulley further keeps the lifting platform stably running and can reduce movement friction.

Drawings

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a top view of the present utility model;

FIG. 4 is a cross-sectional view A-A of FIG. 2;

fig. 5 is an overall assembly view of the present utility model.

Meaning of reference numerals in the drawings: 1-a supporting base; 2-lifting platform; 3-guide posts; 4-pulleys; 5-a screw rod; 6-a nut; 7-driven wheel; 8-a transmission belt; 9-a driving wheel; 10-a speed reducing motor; 11-mounting plate.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

The embodiment discloses a screw drive automatic lifting mechanism, which comprises a support base 1, a lifting table 2, a guide pillar 3, a pulley 4, a screw 5, a nut 6, a driven wheel 7, a driving belt 8, a driving wheel 9, a gear motor 10 and a mounting plate 11, as shown in fig. 1.

Referring to fig. 1, a support base 1 is provided with at least one guide post 3, the guide post 3 is vertically arranged on the plane of the support base 1, and a lifting table 2 is sleeved on the guide post 3. As can be seen from fig. 3, the two sides of the lifting platform 2 are respectively provided with a pulley 4, the pulleys 4 are attached to the side surfaces of the guide posts 3, the lifting platform 2 vertically reciprocates on the guide posts 3 through the pulleys 4 by limiting cooperation of the pulleys 4 and the guide posts 3, and the pulleys 4 are used for keeping the lifting platform to stably run and reducing motion friction. Referring to fig. 4, a nut 6 is installed at the bottom of the lifting table 2, a screw rod 5 is sleeved in the nut 6, the screw rod 5 is parallel to the guide post 3, the top end of the screw rod 5 is fixed in a mounting plate 11, the mounting plate 11 is buckled at the top of the lifting table 2, and the bottom end of the screw rod 5 extends out of the supporting base 1 and is fixedly connected with a driven wheel 7. As shown in fig. 2, a gear motor 10 is further installed on the side edge of the support base 1, and the tail end of the gear motor 10 extends out of the support base and is fixedly connected with a driving wheel 9, and the driving wheel 9 and a driven wheel 7 are connected through a transmission belt 8. An overall schematic diagram of the lifting mechanism after assembly is shown in fig. 5.

The driving wheel 9 is driven to rotate through the gear motor 10, the driven wheel 7 and the screw rod 5 are driven to rotate through the transmission belt 8, the screw rod 5 rotates to drive the nut 6 and the lifting table 2 to slide on the screw rod 5, and lifting movement is achieved.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims

1. The screw rod transmission automatic lifting mechanism is characterized by comprising a supporting base (1), a lifting table (2), a guide pillar (3), a screw rod (5), a nut (6) and a driving device;

the guide post (3) is vertically arranged on the upper plane of the supporting base (1), the lifting table (2) is sleeved on the guide post (3), and a nut (6) is arranged at the bottom of the lifting table (2);

the screw rod (5) is arranged in the lifting table (2), the lower end of the screw rod (5) is sleeved in the nut (6), the bottom of the screw rod (5) is perpendicular to the supporting base (1) and extends to the lower side of the supporting base (1), and a driving device matched with the screw rod (5) is arranged at the bottom of the supporting base (1).

2. The automatic lifting mechanism for screw transmission according to claim 1, wherein the number of the guide posts (3) is two, and the guide posts are symmetrically arranged at the left side and the right side of the lifting table (2).

3. The automatic lifting mechanism for screw transmission according to claim 1, wherein pulleys (4) are mounted on the front side and the rear side of the lifting table (2), and the pulleys (4) are attached to the side face of the guide post (3).

4. A screw drive automatic lifting mechanism according to claim 1, characterized in that the top end of the screw (5) is fixed in a mounting plate (11), and the mounting plate (11) is fixedly connected to the top end of the lifting table (2).

5. A screw drive automatic lifting mechanism according to claim 1, characterized in that the drive means comprises a driven wheel (7), a drive belt (8), a driving wheel (9) and a drive element,

the bottom end of the screw rod (5) is connected with a driven wheel (7), the driving element is arranged on the supporting base (1), the tail end of the driving element extends out of the supporting base (1) and is fixedly connected with a driving wheel (9), and the driving wheel (9) is connected with the driven wheel (7) through a transmission belt (8).

6. A screw drive automatic lifting mechanism according to claim 5, characterized in that the drive element is a gear motor (10).