CN203582387U - Short-distance lifting device - Google Patents

Abstract

The utility model discloses a short-distance lifting device, which comprises a base, a screw, a screw shaft, a cam lock device, a workbench and a chute, the chute is fixed on the base, the screw shaft is fixed in the chute, and one end of the screw is supported by The plate is installed on the chute and slides on the guide rail of the chute, and the other end is threadedly connected with the screw shaft. A cam lock device is installed on each screw rod, and the workbench is installed on the cam lock device through a hinge. This device has flexible lifting and conversion , cyclic execution, reliable performance, simple structure, heavy bearing and other characteristics, it is widely used in short-distance lifting requirements.

Description

A short-distance lifting device

technical field

The utility model relates to a short-distance lifting device, which is especially suitable for occasions where the lifting distance is short and can be repeatedly cycled.

Background technique

In today's industrial production process, the height of the workbench is often adjusted according to actual needs. The actual lifting device mainly includes a screw nut lifting mechanism and a rack and pinion lifting mechanism. In large-scale production, these devices usually require complex structures and huge auxiliary facilities to realize. This makes the structure of the lifting device complex and difficult to control. At the same time, the lifting conversion is slow, and the lifting requirements cannot be performed cyclically. The load-bearing is small and the adjustment is inconvenient. This not only brings a lot of inconvenience to the production site, but also increases unnecessary costs.

Contents of the invention

In view of the above technical shortcomings, the purpose of this utility model is to provide a short-distance lifting device, which has the advantages of simple structure, heavy bearing, flexible lifting conversion, and universal application.

The short-distance lifting device of the utility model includes a base 1, two screw rods 2, a screw shaft 3, a cam lock device 4, a workbench 5 and a chute 6, the chute 6 is fixed on the base 1, and the screw shaft 3 is fixed on the chute 6 Inside, one end of the screw 2 is installed on the chute 6 through the support plate 11 and slides on the guide rail of the chute 6, and the other end is screwed to the screw shaft 3, and a cam lock device 4 is installed on each screw 2, and the workbench 5 is fixed On the cam lock device 4.

Wherein the cam lock device 4 includes a steel ring 7, a quick release shaft 8, a stop nut 9, a cam lock 10, a small rotating shaft 12, and a lock nut 13. Two lifting lugs 14 are arranged on the steel ring 7, and the quick release shaft 8 is installed on the lower part of the steel ring 7 and connected to both sides of the steel ring gap. One end of the quick release shaft 8 is provided with a stop nut 9, and the other end is connected with the cam lock 10 through a small rotating shaft 12. The lock nut 13 is used to lock the cam lock 10 is connected with small rotating shaft 12, and workbench 5 is connected by hinge and lug 14, and steel ring 7 is installed on the screw rod 2, and gasket is provided between quick release shaft 8 and steel ring 7.

A driving device is installed in the middle of the screw shaft, and the driving device is gear transmission, chain transmission or belt transmission.

In the case where manual lifting is required, the installation position of the driving device is connected to the control handle or turntable; in the case where automatic operation is required, the driving device is installed in the middle of the screw shaft, the driving device is connected to the motor, and the forward and reverse rotation of the motor is controlled by an automatic control device .

The two screw rods are stepped and placed symmetrically on the left and right sides of the chute. One end of the screw rod is respectively connected to the screw shaft. The cam lock device is connected to ensure that the horizontal distance of the cam lock device remains unchanged. When the utility model is in operation, the screw shaft rotates, the two screws move relative to each other, and the distance between the two cam lock devices remains unchanged. The cam lock device moves up or down along the screw rod to realize the up and down movement of the workbench. The cam lock 10 can be moved Change the distance between the cam lock and the stop nut, thereby changing the size of the steel ring. When the cam lock device is fixed, it is an interference fit, and when the cam lock device slides, it is a clearance fit, which can realize the cam lock device on the screw rod. slide.

The utility model is characterized in that: under the action of the screw thread, the horizontal left and right movement is converted into a vertical lifting movement; the forward and reverse conversion of the screw shaft is flexible, and the lifting and lowering conversion of the device is rapid and can be executed cyclically. With the advantages of flexibility, heavy load and simple structure, it is widely used in short-distance lifting occasions.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation of cam lock device in the utility model;

Fig. 3 is a side view structural representation of the cam lock device in the utility model;

Fig. 4 is the structural representation when the workbench is low in the utility model;

Fig. 5 is a schematic structural view of the workbench in the high position of the utility model;

In the figure: 1-base, 2-screw, 3-screw shaft, 4-cam lock device, 5-table, 6-chute, 7-steel ring, 8-quick release shaft, 9-stop nut, 10 -cam lock, 11-support plate, 12-small rotating shaft, 13-lock nut, 14-hanging lug.

Detailed ways

The utility model will be described in further detail below through the accompanying drawings and embodiments, but the protection scope of the utility model is not limited to the content described.

The short-distance lifting device of the utility model includes a base 1, two screw rods 2, a screw shaft 3, a cam lock device 4, a workbench 5 and a chute 6, the chute 6 is fixed on the base 1, and the screw shaft 3 is fixed on the chute 6 Inside, one end of the screw 2 is installed on the chute 6 through the support plate 11 and slides on the guide rail of the chute 6, and the other end is screwed to the screw shaft 3, and a cam lock device 4 is installed on each screw 2, and the workbench 5 is fixed On the cam lock device 4;

Wherein the cam lock device 4 includes a steel ring 7, a quick release shaft 8, a stop nut 9, a cam lock 10, a small rotating shaft 12, and a lock nut 13. Two lifting lugs 14 are arranged on the steel ring 7, and the quick release shaft 8 is installed on the lower part of the steel ring 7 and connected to both sides of the steel ring gap. One end of the quick release shaft 8 is provided with a stop nut 9, and the other end is connected with the cam lock 10 through a small rotating shaft 12. The lock nut 13 is used to lock the cam lock 10 and the small rotating shaft 12, a gasket is arranged between the quick release shaft 8 and the steel ring 7, the workbench 5 is connected by a hinge and the lifting lug 14, and the steel ring 7 is installed on the screw rod 2 (see Figure 1-3).

In the case where manual lifting is required, the installation position of the driving device is connected to the control handle or turntable; in the case where automatic operation is required, the driving device is installed in the middle of the screw shaft, the driving device is connected to the motor, and the forward and reverse rotation of the motor is controlled by an automatic control device ;

During the rising process of the device, the screw shaft 3 is driven to rotate through gear transmission, chain transmission or belt transmission, and the screw shaft 3 rotates forward (clockwise rotation is forward rotation when viewed from the right side). Under the action of the thread, the two The screw rods 2 move to the middle respectively at the same time, and the two cam lock devices 4 that can slide on the screw rod 2 are fixed by the worktable 5, and the distance remains unchanged. With the movement of the two screw rods 2, the cam lock device 4 slowly moves along the screw rod Move upward, and the workbench 5 is fixed on the cam lock device 4, so it also rises, and finally realizes the rise of the workbench (see Figure 4);

In the process of descending work, through gear transmission, chain transmission or belt transmission, the screw shaft 3 is driven to rotate, and the screw shaft 3 is reversed (counterclockwise rotation is reversed when viewed from the right side). Under the action of the thread, the two screws 2 At the same time, the two cam lock devices 4 that can slide on the screw rod 2 are fixed by the worktable, and the distance remains unchanged. With the movement of the two screw rods 2, the cam lock device 4 slowly moves down the screw rod. , and the workbench 5 is fixed on the cam lock device 4, so it also descends, and finally the workbench is lowered (see Figure 5).

Claims (3)

1. A short-distance lifting device, characterized in that it includes a base (1), two screws (2), a screw shaft (3), a cam lock device (4), a workbench (5) and a chute (6) , the chute (6) is fixed on the base (1), the screw shaft (3) is fixed in the chute (6), one end of the screw (2) is installed on the chute (6) through the support plate (11) and The groove (6) slides on the guide rail, and the other end is threadedly connected with the screw shaft (3). A cam lock device (4) is installed on each screw rod (2), and the workbench (5) is installed on the cam lock device (4) through a hinge. )superior. 2. The short-distance lifting device according to claim 1, characterized in that: the cam lock device (4) includes a steel ring (7), a quick release shaft (8), a stop nut (9), and a cam lock (10) , small rotating shaft (12), lock nut (13), two lifting lugs (14) are arranged on the steel ring (7), the quick release shaft (8) is installed on the lower part of the steel ring (7) Side connection, one end of the quick release shaft (8) is provided with a stop nut (9), the other end is connected with the cam lock (10) through a small rotating shaft (12), and the lock nut (13) is used to lock the cam lock (10) With small rotating shaft (12), workbench (5) is connected by hinge and lug (14), and steel ring (7) is installed on the screw rod (2). 3. The short-distance lifting device according to claim 1, characterized in that: a driving device is installed in the middle of the screw shaft, and the driving device is gear transmission, chain transmission or belt transmission.

Images