An adjustable European single-beam hoist operation limit installation structure

Abstract

The present invention relates to the technical field of single-beam cranes, and specifically to an adjustable European single-beam hoist operation limit installation structure, including a hoist limit stopper and a hoist arranged on a hoist slide C-type rail, the hoist limit stopper and the hoist slide C-type rail are fixedly installed by a first hanging card, and the hoist limit stopper includes a left parking limit stopper, a left deceleration limit stopper, a right parking limit stopper, and a right deceleration limit stopper; a trolley conductive frame is arranged on the side of the hoist, and the trolley conductive frame is fixedly connected to the hoist operation limit base by a second hanging card, and a limit switch is fixedly connected to the hoist operation limit base; when the cross limit of the cross-shift frame switch of the device hits the deceleration limit stopper, the hoist operation is reduced to low speed operation, and when it hits the parking limit stopper, the hoist stops at a high speed, and the hoist is completely prevented from colliding with the hoist car gear at a high speed. In a word, the present invention has the advantages of simple manufacture, convenient installation, and safe use.

Description

Technical Field

[0001] The invention relates to the technical field of single-beam hoist cranes, and in particular to an adjustable European single-beam hoist operation limit installation structure. Background Art

[0002] On a single-beam crane, due to installation position restrictions, a hoist operation limit is generally not installed. When the hoist is parked at the left or right limit, it depends entirely on the crane operator's visual inspection. Due to the operator's carelessness or fatigue, the hoist is prone to run out of control and collide with the hoist's extreme stop at high speed. The large impact causes the stop to fall off, causing a safety accident. Therefore, a single-beam hoist operation limit installation structure is needed to avoid the hoist running out of control and colliding with the hoist's extreme stop at high speed. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an adjustable European single-beam hoist operation limit installation structure which is simple to manufacture, convenient to install and safe to use.

[0004] To achieve the above-mentioned invention object, the technical solution of the present invention is: an adjustable European single-beam hoist operation limit installation structure, including a hoist limit lever and a hoist arranged on the hoist slide C-type rail, the hoist limit lever and the hoist slide C-type rail are fixedly installed by a first hanging card, and the hoist limit lever includes a left parking limit lever, a left deceleration limit lever, a right parking limit lever, and a right deceleration limit lever; a trolley conductive frame is arranged on the side of the hoist, and the trolley conductive frame is fixedly connected to the hoist operation limit base through a second hanging card, and a limit switch is fixedly connected to the hoist operation limit base.

[0005] Furthermore, the hoist slide C-type rail is provided with a left parking limit lever, a left deceleration limit lever, a right parking limit lever, and a right deceleration limit lever from left to right in sequence, and the positions of the left parking limit lever, the left deceleration limit lever, the right parking limit lever, and the right deceleration limit lever can be adjusted according to actual conditions on site.

[0006] Furthermore, the limit switch is a cross-shift switch. When the cross limit of the cross-shift switch hits the deceleration limit lever, the hoist is reduced to low speed and stops when it hits the parking limit lever. The two-level limit of the deceleration limit lever and the parking limit lever can completely prevent the hoist from colliding with the hoist gear at high speed.

[0007] Furthermore, the first hanging card is symmetrically arranged by two Z-shaped metal plates, and the upper ends of the Z-shaped metal plates are sequentially provided with a first connecting plate, a hoist limit stop rod, and a second connecting plate. The Z-shaped metal plate, the first connecting plate, the hoist limit stop rod, and the second connecting plate are fixedly connected by a bolt group. The first hanging card fixes the hoist limit stop rod on the hoist slide C-shaped rail. By loosening the bolt group, the position of the hoist limit stop rod on the hoist slide C-shaped rail can be adjusted.

[0008] Furthermore, the second hanging card is symmetrically arranged by two Z-shaped metal plates, and the upper ends of the Z-shaped metal plates are sequentially provided with a first connecting plate, a Z-shaped connecting plate, and a second connecting plate, and the Z-shaped metal plate, the first connecting plate, the Z-shaped connecting plate, and the second connecting plate are fixedly connected by a bolt group.

[0009] The beneficial effects of the present invention are as follows: the device fixes the hoist limit lever on the C-shaped rail of the hoist slide line through the first hanging card, and the position of the hoist limit lever on the C-shaped rail of the hoist slide line can be adjusted by loosening the bolt group, which is easy to use. A limit switch is fixedly connected to the hoist operation limit base, and the limit switch is a cross-shift frame switch. When the cross limit of the cross-shift frame switch hits the deceleration limit lever, the hoist operation is reduced to low speed operation, and stops when it hits the parking limit lever. Through the two-level limit of the deceleration limit lever and the parking limit lever, the high-speed collision of the hoist with the hoist gear is completely prevented. The whole device is simple to manufacture and easy to install, which liberates the crane operator and eliminates safety hazards. In short, the present invention has the advantages of simple manufacture, easy installation, and safe use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a top view of an adjustable European-style single-beam hoist operation limit installation structure of the present invention;

[0011] Figure 2 It is a front view of an adjustable European-style single-beam hoist operation limit installation structure of the present invention;

[0012] Figure 3 yes Figure 1 A magnified view of middle;

[0013] Figure 4 It is a structural diagram of the first hanging card in an adjustable European-style single-beam hoist operation limit installation structure of the present invention;

[0014] Figure 5 It is a structural diagram of the second hanging card in an adjustable European-style single-beam hoist operation limit installation structure of the present invention;

[0015] Among them: 1-hoist sliding line C-type rail, 2-hoist limit lever, 21-left parking limit lever, 22-left deceleration limit lever, 23-right parking limit lever, 24-right deceleration limit lever, 25-first elevator, 31-hoist, 32-limit switch, 33-hoist operation limit base, 34-trolley conductive frame, 35-second elevator. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] like Figure 1-4 As shown, an adjustable European single-beam hoist operation limit installation structure includes a hoist limit stop bar 2 and a hoist 31 arranged on a hoist slide C-type rail 1, and the hoist limit stop bar 2 and the hoist slide C-type rail 1 are fixedly installed by a first hanging card 25. The first hanging card 25 is symmetrically arranged by two Z-shaped metal plates, and the upper end of the Z-shaped metal plate is sequentially provided with a first connecting plate, a hoist limit stop bar 2, and a second connecting plate. The two Z-shaped metal plates and the first connecting plate, the hoist limit stop bar 2, and the second connecting plate are fixedly connected by a bolt group, so that the hoist slide C-type rail 1 is set between the two Z-shaped metal plates. By loosening the bolt group, the position of the first hanging card 25 on the hoist slide C-type rail 1 can be adjusted, thereby adjusting the position of the hoist limit stop bar 2 on the hoist slide C-type rail 1. The hoist limit stop bar 2 includes a left parking limit stop bar 21, a left deceleration limit stop bar 22, a right parking limit stop bar 23, and a right deceleration limit stop bar 24. A left parking limit lever 21, a left deceleration limit lever 22, a right parking limit lever 23, and a right deceleration limit lever 24 are arranged on the hoist slide C-type rail 1 from left to right. The positions of the left parking limit lever 21, the left deceleration limit lever 22, the right parking limit lever 23, and the right deceleration limit lever 24 can be adjusted according to actual conditions on site.

[0018] like Figure 1 , 2As shown in Figures 3, 5, a trolley conductive frame 34 is provided on the side of the hoist 31, and the trolley conductive frame 34 is fixedly connected to the hoist operation limit base 33 through a second hanging card 35. The second hanging card 35 is symmetrically arranged by two Z-shaped metal plates. The upper end of the Z-shaped metal plate is sequentially provided with a first connecting plate, a Z-shaped connecting plate, and a second connecting plate. The Z-shaped connecting plate is composed of a first horizontal portion, a vertical portion, and a second horizontal portion. The Z-shaped metal plate, the first connecting plate, the first horizontal portion of the Z-shaped connecting plate, and the second connecting plate are fixedly connected by a bolt group, so that the trolley conductive frame 34 is arranged between the two Z-shaped metal plates. By loosening the bolt group, the position of the second hanging card 35 on the trolley conductive frame 34 can be adjusted. The hoist operation limit base 33 is fixedly arranged on the second horizontal portion. A limit switch 32 is fixedly connected to the hoist operation limit base 33, and the limit switch 32 is a cross-type switch. When the cross limit of the cross-type switch hits the deceleration limit lever, the hoist 31 runs at a low speed and stops when it hits the parking limit lever. The two-level limit of the deceleration limit lever and the parking limit lever can completely prevent the hoist 31 from colliding with the hoist gear at high speed.

[0019] The operation process of the present invention is as follows: select a suitable position on the hoist slide C-type rail to install the hoist limit lever according to actual needs, first connect the hoist limit lever and the elevator, fix the hoist slide C-type rail in the elevator, and the positions of the left parking limit lever, the left deceleration limit lever, the right parking limit lever, and the right deceleration limit lever can be adjusted according to the actual situation on site. Select a suitable position on the trolley conductive frame to install the limit switch according to actual needs.

[0020] The beneficial effects of the present invention are as follows: the device fixes the hoist limit lever on the C-shaped rail of the hoist slide line through the first hanging card, and the position of the hoist limit lever on the C-shaped rail of the hoist slide line can be adjusted by loosening the bolt group, which is easy to use. A limit switch is fixedly connected to the hoist operation limit base, and the limit switch is a cross-shift frame switch. When the cross limit of the cross-shift frame switch hits the deceleration limit lever, the hoist operation is reduced to low speed operation, and stops when it hits the parking limit lever. Through the two-level limit of the deceleration limit lever and the parking limit lever, the high-speed collision of the hoist with the hoist gear is completely prevented. The whole device is simple to manufacture and easy to install, which liberates the crane operator and eliminates safety hazards. In short, the present invention has the advantages of simple manufacture, easy installation, and safe use.

Claims

1. An adjustable European single-beam hoist operation limit installation structure, comprising a hoist limit stop rod and a hoist arranged on a hoist slide C-shaped rail, characterized in that: The hoist limit lever and the hoist slide C-shaped rail are fixedly installed by the first hanging card, and the hoist limit lever includes a left parking limit lever, a left deceleration limit lever, a right parking limit lever, and a right deceleration limit lever; a trolley conductive frame is arranged on the side of the hoist, and the trolley conductive frame is fixedly connected to the hoist operation limit base by the second hanging card, and the hoist operation limit base is fixedly connected with a limit switch; The hoist slide C-shaped rail is provided with a left parking limit lever, a left deceleration limit lever, a right parking limit lever, and a right deceleration limit lever from left to right in sequence; The limit switch is a cross-type switch; The first hanging card is symmetrically arranged by two Z-shaped metal plates, and the upper ends of the Z-shaped metal plates are sequentially provided with a first connecting plate, a hoist limit stop rod, and a second connecting plate, and the Z-shaped metal plate, the first connecting plate, the hoist limit stop rod, and the second connecting plate are fixedly connected by a bolt group; The second hanging card is symmetrically arranged by two Z-shaped metal plates, and the upper ends of the Z-shaped metal plates are sequentially provided with a first connecting plate, a Z-shaped connecting plate, and a second connecting plate, and the Z-shaped metal plate, the first connecting plate, the Z-shaped connecting plate, and the second connecting plate are fixedly connected by a bolt group.

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