Unattended crane

Abstract

The utility model provides an unattended crane which comprises a cart running mechanism, and corresponding anti-collision devices are arranged at the two ends of the cart running mechanism; the anti-collision device is provided with a mounting frame fixedly arranged at the end of a cart running mechanism, a positive anti-collision plate is elastically supported on the front side of the mounting frame, a trigger column is fixedly arranged in the middle of the side, close to the mounting frame, of the positive anti-collision plate, and a first proximity switch corresponding to the anti-collision column is fixedly erected on the mounting frame. A stand column is vertically and fixedly arranged at the end part of the mounting frame, and a safety grating is arranged on the stand column; the mounting gratings in the anti-collision devices at the two ends of the cart running mechanism are matched with each other; according to the utility model, collision accidents of the cart running mechanism can be avoided, running can be stopped in time when a person approaches the side surface of the cart running mechanism, and the safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cranes, and particularly relates to an unattended crane. Background Art

[0002] With the acceleration of the industrialization process, as an important handling equipment, the safe and stable operation of gantry cranes directly affects production efficiency and operation safety. The trolley running mechanism of the gantry crane moves along the track laid on the ground.

[0003] Most traditional gantry cranes rely on manual observation and judgment to prevent people from entering the operating range of the crane and causing collision accidents. However, the manual monitoring method has monitoring blind spots and high labor costs.

[0004] In the prior art, a Chinese utility model patent with the authorization announcement number of CN219652536U discloses an obstacle recognition device based on image recognition. It can obtain image information in the traveling direction through a camera, automatically recognize obstacles on the track, and timely control the gantry crane to stop moving to avoid collision accidents. However, it cannot recognize people who break in from the side of the trolley running mechanism, and its safety needs to be improved.

[0005] Therefore, it is necessary to design an unattended crane that can avoid collision accidents of the trolley running mechanism, and at the same time can stop running in time when someone approaches the side of the trolley running mechanism to improve safety to solve the current technical problems. Summary of the Utility Model

[0006] Aiming at the deficiencies in the prior art, the utility model provides an unattended crane that can avoid collision accidents of the trolley running mechanism, and at the same time can stop running in time when someone approaches the side of the trolley running mechanism to improve safety.

[0007] The technical solution of the utility model is: an unattended crane, including a trolley running mechanism, and corresponding anti-collision devices are arranged at both ends of the trolley running mechanism; the anti-collision device has a mounting frame fixedly arranged at the end of the trolley running mechanism, a front anti-collision plate is elastically supported on the front side of the mounting frame, a trigger post is fixedly arranged in the middle on the side of the front anti-collision plate close to the mounting frame, and a first proximity switch corresponding to the front anti-collision plate is fixedly arranged on the mounting frame; a column is vertically fixedly arranged at the end of the mounting frame, and a safety light curtain is arranged on the column; the safety light curtains in the anti-collision devices at both ends of the trolley running mechanism cooperate with each other.

[0008] A side anti-collision plate is slidably provided on one end of the front anti-collision plate close to the safety grating, the side anti-collision plate is arranged on the side of the safety grating away from the mounting frame, the side anti-collision plate is elastically supported between the end of the front anti-collision plate, and a second proximity switch corresponding to the side anti-collision plate is arranged at the end of the front anti-collision plate.

[0009] A support plate is fixedly provided at the end of the front anti-collision plate, a guide rod is symmetrically provided at the end of the side anti-collision plate, the guide rod is slidably connected to the support plate, a limit plate is fixedly provided at the end of the guide rod, and a second spring is sleeved on the outer side of the guide rod between the support plate and the side anti-collision plate; the second proximity switch is arranged on the support plate.

[0010] A front pad is arranged on the outer side of the front anti-collision plate, and a side pad is arranged on the outer side of the side anti-collision plate; the front pad and the side pad are both rubber plates.

[0011] Two sliding support members are symmetrically arranged between the positive anti-collision plate and the mounting frame, and a first spring is sleeved on the outer side of the sliding support member between the positive anti-collision plate and the mounting frame.

[0012] The sliding support member includes a sliding rod and a sliding cylinder, a retaining edge is provided at one end of the sliding cylinder, a sliding block is provided for sliding inside the sliding cylinder, a sliding rod is provided for sliding inside the retaining edge, and the sliding rod is fixedly connected to the sliding block; one end of the sliding rod facing away from the sliding block is fixedly connected to the positive anti-collision plate, and one end of the sliding cylinder facing away from the sliding rod is fixedly connected to the mounting frame.

[0013] A mounting plate is provided on the mounting frame, and the mounting plate is fixedly connected to the end of the trolley running mechanism.

[0014] Beneficial effects of the utility model:

[0015] (1) In the present invention, when the trolley operating mechanism is moving, if there is an obstacle or a person in the forward direction, the front anti-collision plate will first contact it, and the front anti-collision plate will move relative to the mounting plate, and the trigger column will trigger the first proximity switch. When the controller detects that the first proximity switch is triggered, it will immediately stop the movement of the trolley operating mechanism, thereby avoiding a collision;

[0016] (2) The safety gratings in the anti-collision devices at both ends of the trolley traveling mechanism cooperate with each other. One of the two safety gratings located at both ends of the trolley traveling mechanism is the transmitting end, and the other is the receiving end. The transmitting end emits a light beam towards the receiving end, emitting along the entire height direction of the safety grating to form a grating plane. When an object enters the light beam path, the object will block the light beam, causing the light signal received by the receiver to weaken or interrupt. At this time, the safety grating will send a signal to the controller to determine that someone is approaching the trolley traveling mechanism from the side, and the trolley traveling mechanism will brake emergently to prevent accidents and improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the unattended crane in the present invention.

[0018] Figure 2 It is one of the schematic structural diagrams of the anti-collision device in the present invention.

[0019] Figure 3 It is the second schematic structural diagram of the anti-collision device in the present invention.

[0020] Figure 4 is Figure 3 The partial enlarged view at A in

[0021] Figure 5 It is the schematic structural diagram of the sliding support member in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Now, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and does not constitute any limitation to the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully convey the scope of the present invention to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values described in these embodiments should be construed as merely exemplary and not as limitations.

[0023] The "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. Words such as "including" or "comprising" mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements. "Up", "down", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0024] AsFigures 1 to 5 As shown, the unattended crane comprises a trolley operating mechanism 1, and corresponding anti-collision devices 2 are arranged at both ends of the trolley operating mechanism 1; the anti-collision device 2 has a mounting frame 21 fixedly arranged at the end of the trolley operating mechanism 1, and a positive anti-collision plate 22 is elastically supported on the front side of the mounting frame 21, and a trigger column 221 is fixedly arranged in the center of the positive anti-collision plate 22 close to the mounting frame 21, and a first proximity switch 25 corresponding to the positive anti-collision plate 221 is fixedly arranged on the mounting frame 21; a column 29 is vertically fixedly arranged at the end of the mounting frame 21, and a safety grating 28 is arranged on the column 29; the safety gratings 28 in the anti-collision device 2 at both ends of the trolley operating mechanism 1 cooperate with each other; in this embodiment, when the trolley operating mechanism 1 is moving, if there is an obstacle or a person in the forward direction, the positive anti-collision plate 22 first contacts it, and the positive anti-collision plate 22 is relative to the safety grating The mounting plate 211 moves, and the trigger column 221 triggers the first proximity switch 25. When the controller detects that the first proximity switch 25 is triggered, it immediately stops the movement of the trolley operating mechanism 1 to avoid a collision. At the same time, the safety gratings 28 in the anti-collision devices 2 at both ends of the trolley operating mechanism 1 cooperate with each other, wherein one of the two safety gratings 28 located at both ends of the trolley operating mechanism 1 is a transmitting end, and the other is a receiving end. The transmitting end emits a light beam to the receiving end, and emits along the entire height direction of the safety grating 28 to form a grating surface. When an object enters the light beam path, the object will block the light beam, causing the light signal received by the receiver to be weakened or interrupted. At this time, the safety grating 28 will send a signal to the controller to determine that someone is approaching the trolley operating mechanism 1 from the side, and the trolley operating mechanism 1 will be emergency braked to prevent accidents and improve safety.

[0025] In the above embodiment, there is a blind spot on the outside of the safety grating 28. When the trolley operating mechanism 1 is moving, when an object contacts the outside of the safety grating 28, the trolley operating mechanism 1 will not stop, and there are certain hidden dangers. In order to solve this technical problem, a side anti-collision plate 23 is slidably provided on the end of the front anti-collision plate 22 close to the safety grating 28. The side anti-collision plate 23 is arranged on the side of the safety grating 28 away from the mounting frame 21. The side anti-collision plate 23 is elastically supported between the end of the front anti-collision plate 22, and a second proximity switch 28 corresponding to the side anti-collision plate 23 is arranged at the end of the front anti-collision plate 22; when the trolley operating mechanism 1 is moving, when an object is about to contact the outside of the safety grating 28, it first contacts the side anti-collision plate 23. After contacting the side anti-collision plate 23, the side anti-collision plate 23 moves toward the front anti-collision plate 22, triggering the second proximity switch 28. When the controller detects that the second proximity switch 28 is triggered, it immediately stops the movement of the trolley operating mechanism 1, thereby avoiding a collision.

[0026] In some embodiments, a support plate 223 is fixedly provided at the end of the front anti-collision plate 22, and the support plate 223 is vertically connected to the front anti-collision plate 22 to form an integrated structure. A guide rod 26 is symmetrically provided at the end of the side anti-collision plate 23, and the guide rod 26 is slidably connected to the support plate 223. A limiting plate 27 is fixedly provided at the end of the guide rod 26, and a second spring 261 is sleeved on the outer side of the guide rod 26 between the support plate 223 and the side anti-collision plate 23; the second proximity switch 28 is set on the support plate 223. After the side anti-collision plate 23 contacts an external object, the guide rod 26 slides with the support plate 223 to compress the second spring 261 and approach the second proximity switch 28 to trigger it.

[0027] In some embodiments, a front pad 222 is provided on the outer side of the front anti-collision plate 22, and a side pad 231 is provided on the outer side of the side anti-collision plate 23; the front pad 222 and the side pad 231 are both rubber plates, and the rubber plates have a certain elasticity. When the front anti-collision plate 22 and the side anti-collision plate 23 come into contact with external objects, the front pad 222 and the side pad 231 can play a certain buffering role. The front pad 222 and the side pad 231 are bonded and fixed to the outer sides of the front anti-collision plate 22 and the side anti-collision plate 23.

[0028] In some embodiments, two sliding support members 23 are symmetrically arranged between the front anti-collision plate 22 and the mounting frame 21 , and a first spring 24 is sleeved on the outer side of the sliding support member 23 between the front anti-collision plate 22 and the mounting frame 21 , and the first spring 24 provides elastic support for the front anti-collision plate 22 .

[0029] In some embodiments, Figure 5 As shown, the sliding support member 23 has a sliding rod 231 and a sliding cylinder 232, a stop edge 234 is provided at one end of the sliding cylinder 232, a slider 233 is provided for sliding inside the sliding cylinder 232, a sliding rod 231 is provided for sliding inside the stop edge 234, and the sliding rod 231 is fixedly connected to the slider 233; one end of the sliding rod 231 away from the slider 233 is fixedly connected to the positive anti-collision plate 22, and one end of the sliding cylinder 232 away from the sliding rod 231 is fixedly connected to the mounting frame 21.

[0030] In some embodiments, a mounting plate 211 is provided on the mounting frame 21, and the mounting plate 211 is fixedly connected to the end of the trolley running mechanism 1; specifically, the mounting plate 211 is fixed to the end of the trolley running mechanism 1 by welding or bolt assembly.

[0031] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0032] The above-described embodiments merely represent some implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. An unmanned crane, characterized in that: It includes a trolley running mechanism, and corresponding anti-collision devices are arranged at both ends of the trolley running mechanism; the anti-collision device has a mounting frame fixedly arranged at the end of the trolley running mechanism, the front side of the mounting frame is elastically supported with a positive anti-collision plate, a trigger column is fixedly arranged in the center of the positive anti-collision plate close to the mounting frame, and a first proximity switch corresponding to the positive anti-collision plate is fixedly arranged on the mounting frame; a column is vertically fixedly arranged at the end of the mounting frame, and a safety grating is arranged on the column; the safety gratings in the anti-collision devices at both ends of the trolley running mechanism cooperate with each other.

2. The unmanned crane according to claim 1, characterized in that: A side anti-collision plate is slidably provided on one end of the front anti-collision plate close to the safety grating, the side anti-collision plate is arranged on the side of the safety grating away from the mounting frame, the side anti-collision plate is elastically supported between the end of the front anti-collision plate, and a second proximity switch corresponding to the side anti-collision plate is arranged at the end of the front anti-collision plate.

3. The unmanned crane according to claim 2, characterized in that: A support plate is fixedly provided at the end of the front anti-collision plate, a guide rod is symmetrically provided at the end of the side anti-collision plate, the guide rod is slidably connected to the support plate, a limit plate is fixedly provided at the end of the guide rod, and a second spring is sleeved on the outer side of the guide rod between the support plate and the side anti-collision plate; the second proximity switch is arranged on the support plate.

4. The unmanned crane according to claim 2, characterized in that: A front pad is arranged on the outer side of the front anti-collision plate, and a side pad is arranged on the outer side of the side anti-collision plate; the front pad and the side pad are both rubber plates.

5. The unmanned crane according to claim 1, characterized in that: Two sliding support members are symmetrically arranged between the positive anti-collision plate and the mounting frame, and a first spring is sleeved on the outer side of the sliding support member between the positive anti-collision plate and the mounting frame.

6. The unmanned crane according to claim 5, characterized in that: The sliding support member includes a sliding rod and a sliding cylinder, a retaining edge is provided at one end of the sliding cylinder, a sliding block is provided for sliding inside the sliding cylinder, a sliding rod is provided for sliding inside the retaining edge, and the sliding rod is fixedly connected to the sliding block; one end of the sliding rod facing away from the sliding block is fixedly connected to the positive anti-collision plate, and one end of the sliding cylinder facing away from the sliding rod is fixedly connected to the mounting frame.

7. The unmanned crane according to claim 1, characterized in that: A mounting plate is provided on the mounting frame, and the mounting plate is fixedly connected to the end of the trolley running mechanism.

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