CN216971770U

CN216971770U - Limiting mechanism of single-beam crane trolley

Info

Publication number: CN216971770U
Application number: CN202220733346.2U
Authority: CN
Inventors: 韩军印; 贾武希; 冯胜林; 李建功; 杨高建; 赵付瑞
Original assignee: Henan Feima Hoisting Machinery Group Co ltd
Current assignee: Henan Feima Hoisting Machinery Group Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-07-15
Anticipated expiration: 2032-03-31

Abstract

The utility model relates to a trolley limiting mechanism of a single-beam crane, which comprises a first limit switch, a first speed reducing plate, a second limit switch and a second speed reducing plate, wherein the first limit switch is connected with the first speed reducing plate; the first limit switch and the second limit switch are arranged on the main beam and are arranged within two meters of limit positions on two sides of the travel of the traveling mechanism, and the first limit switch and the second limit switch are arranged above the traveling working surface of the traveling mechanism; the first speed reduction plate and the second speed reduction plate are arranged on two sides of a walking track of the walking mechanism; the bottom surfaces of the first speed reducing plate and the second speed reducing plate are attached to the working surface of the travelling mechanism, and the inclination angles of one side facing the travelling mechanism and the bottom surface are acute; the first limit switch and the second limit switch are connected with a stop switch of the travelling mechanism.

Description

Limiting mechanism of single-beam crane trolley

Technical Field

The utility model relates to the technical field of single-beam crane trolley limiting mechanisms, in particular to a single-beam crane trolley limiting mechanism.

Background

At present, an electric hoist single-beam crane belongs to one type of hoisting machinery, and is a machinery which does circulating and intermittent motion. The electric hoist single-beam crane comprises a cross beam, a trolley and a controller; for the operation of the trolley, the limit positions of the two sides need to be considered. The trolley has the advantages that after the trolley carries a lifted heavy object, the inertia is large, the currently and generally adopted anti-collision device has large impact, the lifted object shakes greatly, larger potential safety hazards exist, meanwhile, the alarm is absent aiming at dangerous limit positions, particularly, after the trolley is too close to a shaking range, the position of the trolley needs to be considered for reducing the speed or limiting the operation, the collision is prevented, and the operation safety and reliability are improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a limiting mechanism of a single-beam crane trolley, which has the characteristics of reliable performance, linkage control, assistance of braking by a slope surface, simple structure, low cost and convenience in implementation.

In order to solve the problems, the utility model provides a limiting mechanism of a single-beam crane trolley, which comprises a first limit switch, a first speed reducing plate, a second limit switch and a second speed reducing plate; the first limit switch and the second limit switch are arranged on the main beam and are arranged within two meters of limit positions on two sides of the travel of the traveling mechanism, and the first limit switch and the second limit switch are arranged above the traveling working surface of the traveling mechanism; the first speed reduction plate and the second speed reduction plate are arranged on two sides of a walking track of the walking mechanism; the bottom surfaces of the first speed reducing plate and the second speed reducing plate are attached to the working surface of the travelling mechanism, and the inclination angles of one side facing the travelling mechanism and the bottom surface are acute; the first limit switch and the second limit switch are connected with a stop switch of the travelling mechanism.

The technical scheme provided by the utility model also has the following technical characteristics:

furthermore, the working surfaces of the first speed reducing plate and the second speed reducing plate, which face the walking mechanism, are provided with anti-skid particles.

Furthermore, the first limit switch and the second limit switch comprise a base bottom plate, a pressure protection plate, a shifting lever, a fork arm, a inching switch and a movable ball; two sides of the driving lever are provided with fork arms, and the fork arms are used for extruding the inching switch; the movable ball at the lower end of the deflector rod is embedded in the pressure guard plate and the base bottom plate to form a spherical revolute pair, and the deflector rod automatically swings to a drooping initial position under the action of gravity without external force interference.

Furthermore, the first speed reduction plate and the second speed reduction plate are triangular support plates, and the inclination angle of the surface for supporting is less than or equal to 15 degrees.

Furthermore, the first speed reduction plate, the second speed reduction plate and the main beam are welded or connected through bolts.

Furthermore, the main beam is a single beam.

Furthermore, the travelling mechanism is a travelling device of the electric hoist.

Furthermore, the first limit switch and the second limit switch are connected with an audible and visual alarm.

The utility model has the following beneficial effects:

according to the utility model, the second limit switch and the first limit switch are arranged at the limit positions of the running track of the running mechanism to control the running of the running mechanism in a linkage manner, and the operation is warned by combining with an audible and visual alarm, so that the danger of lifting goods caused by shaking, collision or sudden stop is avoided; set up first air brake, second air brake on extreme position simultaneously and assist extreme position and shut down, mainly be increase resistance, utilize the inclined plane to make it be difficult to break through extreme position, receive the article of lifting by crane in addition, the action of gravity also has the component on this inclined plane, makes its resistance of breaking through extreme position increase fast, makes its crashproof, protecting against shock, plays good limiting displacement.

Drawings

FIG. 1 is a perspective view of a single beam crane trolley spacing mechanism according to an embodiment of the present invention;

FIG. 2 is a perspective view of a first speed reduction plate of a trolley limiting mechanism of a single-beam crane according to an embodiment of the utility model;

FIG. 3 is a perspective view of a second speed reduction plate of the trolley limiting mechanism of the single-beam crane according to the embodiment of the utility model;

FIG. 4 is a front view of a first limit switch and a second limit switch of the trolley limiting mechanism of the single-beam crane according to the embodiment of the utility model;

FIG. 5 is a cross-sectional view of a second limit switch of the trolley limiting mechanism of the single beam crane according to the embodiment of the present invention;

in the figure: 1. The main beam 2, the first limit switch 3, the first speed reduction plate 4, the traveling mechanism 5, the second limit switch 6, the second speed reduction plate 11, the end beam 12, the track 51, the base bottom plate 52, the pressure protection plate 53, the shift lever 54, the fork arm 55, the inching switch 531 and the movable ball.

Detailed Description

The utility model will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The limiting mechanism of the single-beam crane trolley shown in the figures 1-5 comprises a first limit switch 2, a first speed reducing plate 3, a second limit switch 5 and a second speed reducing plate 6; in one embodiment of the present application, the first limit switch 2 and the second limit switch 5 are arranged on the main beam 1 and within two meters of the limit positions on both sides of the travel of the traveling mechanism 4, and the first limit switch 2 and the second limit switch 5 are arranged above the traveling working surface of the traveling mechanism 4; the first speed reduction plate 3 and the second speed reduction plate 6 are arranged on two sides of a walking track 12 of the walking mechanism 4; the bottom surfaces of the first speed reducing plate 3 and the second speed reducing plate 6 are attached to the working surface of the travelling mechanism 4, and the inclination angles of one side facing the travelling mechanism 4 and the bottom surface are acute; the first limit switch 2 and the second limit switch 5 are connected with a stop switch of the travelling mechanism 4.

When the utility model is implemented, the implementation key points are as follows: the utility model utilizes the limit position of the running track of the running mechanism 4 to be provided with the second limit switch 5 and the first limit switch 2 to control the running of the running mechanism 4 in a linkage way, and the operation is warned by combining with acousto-optic alarm, so that the danger of the lifted goods caused by shaking, collision or sudden stop is avoided; meanwhile, the first speed reducing plate 3 and the second speed reducing plate 6 are arranged at the limit positions to assist the stop of the limit positions, the resistance is mainly increased, the limit positions are difficult to break through by utilizing the inclined plane, and the gravity action of a lifted object has component force on the inclined plane, so that the resistance breaking through the limit positions is rapidly increased, the impact resistance and the impact resistance are enabled to be realized, and a good limit effect is exerted.

In one embodiment of the present application, the working surfaces of the first decelerating plates 3 and the second decelerating plates 6 facing the traveling mechanism 4 are provided with anti-skid particles; the friction force and the resistance are increased, the structure is simple, and meanwhile, the impact surface is prevented from being too smooth, so that the impact surface slides out of the track.

In one embodiment of the present application, the first limit switch 2 and the second limit switch 5 include a base bottom plate 51, a pressure guard plate 52, a shift lever 53, a fork arm 54, a jog switch 55, a movable ball 531; two sides of the shift lever 53 are provided with a fork arm 54, and the fork arm 54 is used for extruding the inching switch 55; the movable ball 531 at the lower end of the shift lever 53 is embedded in the pressure guard plate 52 and the base bottom plate 51 to form a spherical revolute pair, and the shift lever 53 automatically swings to a droop initial position under the action of gravity without external force interference; simple structure, convenient to use utilizes this oscillating mechanism of starting, forms control switch, comes the linkage to avoid running gear 4 to move outside the work extreme position of girder 1, increases the security.

In one embodiment of the present application, the first decelerating plate 3 and the second decelerating plate 6 are triangular supporting plates, and the inclination angle of the supporting surface is less than or equal to 15 °; the technical route is simple, a good resistance inclined plane can be obtained when the angle is less than 15 degrees, meanwhile, the height of the inclined plane is prevented from being too inclined, and other safety problems caused by too high speed of rising the height are avoided.

In one embodiment of the present application, the first speed reduction plate 3, the second speed reduction plate 6 and the main beam 1 are welded or bolted; the connection mode is simple and reliable, and can be fully implemented by combining the prior art.

In one embodiment of the present application, the main beam 1 is a single beam; the utility model is especially suitable for the trolley walking limit of the single-beam crane.

In one embodiment of the present application, the traveling mechanism 4 is a traveling device of an electric hoist; the utility model is especially suitable for the trolley travel limit of a single-beam crane, so that various implementation modes can be developed according to local conditions for popularization and application.

In one embodiment of the present application, the first limit switch 2 and the second limit switch 5 are connected with an audible and visual alarm; the auxiliary prompting device can assist in prompting the running extreme position, so that the relative controllable safety can be obtained.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a monospar monkey stop gear which characterized in that: comprises a first limit switch (2), a first speed reducing plate (3), a second limit switch (5) and a second speed reducing plate (6); the first limit switch (2) and the second limit switch (5) are arranged on the main beam (1) and are arranged within two meters of limit positions on two sides of the stroke of the travelling mechanism (4), and the first limit switch (2) and the second limit switch (5) are arranged above the travelling working surface of the travelling mechanism (4); the first speed reducing plate (3) and the second speed reducing plate (6) are arranged on two sides of a walking track (12) of the walking mechanism (4); the bottom surfaces of the first speed reducing plate (3) and the second speed reducing plate (6) are attached to the working surface of the travelling mechanism (4), and the inclination angles of one side facing the travelling mechanism (4) and the bottom surface are acute; the first limit switch (2) and the second limit switch (5) are connected with a stop switch of the traveling mechanism (4).

2. The single beam crane trolley limiting mechanism of claim 1, wherein: the working surfaces of the first speed reducing plate (3) and the second speed reducing plate (6) on one sides facing the travelling mechanism (4) are provided with anti-skid particles.

3. The single beam crane trolley spacing mechanism of claim 1, wherein: the first limit switch (2) and the second limit switch (5) comprise a base bottom plate (51), a pressure protection plate (52), a shifting lever (53), a fork arm (54), a inching switch (55) and a movable ball (531); two sides of the shifting lever (53) are provided with fork arms (54), and the fork arms (54) are used for extruding the inching switch (55); the movable ball (531) at the lower end of the shifting lever (53) is embedded in the pressure guard plate (52) and the base bottom plate (51) to form a spherical revolute pair, and the shifting lever (53) automatically swings to a droop initial position under the action of gravity without external force interference.

4. The single beam crane trolley spacing mechanism of claim 1, wherein: the first speed reduction plate (3) and the second speed reduction plate (6) are triangular support plates, and the inclination angle of the support surface is less than or equal to fifteen degrees.

5. The single beam crane trolley spacing mechanism of claim 1, wherein: the first speed reducing plate (3), the second speed reducing plate (6) and the main beam (1) are connected through welding or bolts.

6. The single beam crane trolley spacing mechanism of claim 1, wherein: the main beam (1) is a single beam.

7. The single beam crane trolley spacing mechanism of claim 1, wherein: the traveling mechanism (4) is a traveling device of an electric hoist.

8. The single beam crane trolley spacing mechanism of claim 1, wherein: the first limit switch (2) and the second limit switch (5) are connected with an audible and visual alarm.