阅读说明：本技术 一种物流用重柜正面吊车支臂 (Logistics is with positive crane support arm of heavy cabinet ) 是由 程虹 于 2021-01-19 设计创作，主要内容包括：本发明涉及物流技术领域,具体为一种物流用重柜正面吊车支臂,包括支臂主体,所述支臂主体上连接有伸缩节,且伸缩节上固定安装有前支架,所述前支架上安装有吊具,且支臂主体上连接有液压杆,所述伸缩节上固定安装有保险箱,且保险箱上固定安装有端块,所述保险箱中设置有空腔,且空腔中固定安装有保险盘,所述保险盘上固定安装有定位齿,且保险盘上转动连接有绕卷轴,所述绕卷轴上绕卷有保险绳；在支臂主体的伸缩节上设置有静态补强、动态止损的保险机构,由保险箱以及连接在其中的保险绳构成,并设置有超速触发结构,在吊车伸缩节出现意外的折断掉落时,通过保险绳对脱落的伸缩节进行了制动,防止其掉落造成人身伤害。(The invention relates to the technical field of logistics, in particular to a support arm of a crane on the front side of a heavy cabinet for logistics, which comprises a support arm main body, wherein an expansion joint is connected onto the support arm main body, a front support is fixedly arranged on the expansion joint, a lifting appliance is arranged on the front support, a hydraulic rod is connected onto the support arm main body, a safe box is fixedly arranged on the expansion joint, an end block is fixedly arranged on the safe box, a cavity is arranged in the safe box, a safe disc is fixedly arranged in the cavity, positioning teeth are fixedly arranged on the safe disc, a winding shaft is rotatably connected onto the safe disc, and a safety rope is wound on the winding shaft; the telescopic joint of the support arm main body is provided with a safety mechanism for static reinforcement and dynamic damage prevention, the safety mechanism is composed of a safe box and a safety rope connected with the safe box, and an overspeed triggering structure is arranged, so that when the telescopic joint of the crane is broken and falls accidentally, the fallen telescopic joint is braked through the safety rope, and personal injury caused by falling of the telescopic joint is prevented.)

1. The utility model provides a commodity circulation is with positive crane arm of heavy cabinet, includes support arm main part (1), its characterized in that: the telescopic joint is characterized in that a telescopic joint (2) is connected onto a support arm main body (1), a front support (3) is fixedly mounted on the telescopic joint (2), a lifting appliance (4) is mounted on the front support (3), a hydraulic rod (5) is connected onto the support arm main body (1), a safe box (6) is fixedly mounted on the telescopic joint (2), an end block (7) is fixedly mounted on the safe box (6), a cavity (8) is arranged in the safe box (6), a safe disc (9) is fixedly mounted in the cavity (8), a positioning tooth (10) is fixedly mounted on the safe disc (9), a winding reel (11) is rotatably connected onto the safe disc (9), a safety rope (12) is wound onto the winding reel (11), a volute spring (13) and a connecting rod (14) are fixedly connected onto the winding reel (11), and a chute (15) is arranged in the connecting rod (14), and fixed mounting has spring (16) in spout (15), and fixedly connected with slider (17) on spring (16), fixed mounting has card post (18) on slider (17), and is provided with side fastener (19) on slider (17), and is provided with check groove (20) on connecting rod (14), be provided with grooving (21) on safe (6), and fixedly connected with balance rope (22) on safety rope (12).

2. The front crane arm for the heavy cabinet for logistics according to claim 1, wherein: the telescopic joint (2) is installed at the front end of the support arm main body (1), the front support (3) is installed at the end part of the telescopic joint (2), the lifting appliance (4) is composed of a steel wire rope and a lifting hook, the steel wire rope is connected to the wire guide grooves in the support arm main body (1) and the telescopic joint (2), and the hydraulic rod (5) is connected between the support arm main body (1) and a crane base.

3. The front crane arm for the heavy cabinet for logistics according to claim 1, wherein: the safe box (6) is arranged at each joint of the telescopic joint (2), the end block (7) is arranged on the side surface of the safe box (6), and the safety rope (12) is connected between the end block (7) and the safe box (6).

4. The front crane arm for the heavy cabinet for logistics according to claim 1, wherein: the safety disc (9) is installed in the center of the cavity (8), the positioning teeth (10) are annularly installed on the edge of the safety disc (9), the winding shaft (11) is connected to the circle center of the safety disc (9), the winding shaft (11) extends to be arranged on two sides of the safety disc (9), and the safety rope (12) and the volute spiral spring (13) are located on two sides of the safety disc (9) respectively.

5. The front crane arm for the heavy cabinet for logistics according to claim 1, wherein: the connecting rod (14) is installed on the winding shaft (11), the sliding block (17) is installed in the sliding groove (15) in a sliding mode, the spring (16) is connected between the sliding block (17) and the groove surface of the sliding groove (15), the clamping column (18) is installed at the front end of the sliding block (17), the side clamping piece (19) is composed of a metal elastic piece and a clamping block, and the check groove (20) is formed in the groove wall of the sliding groove (15).

6. The front crane arm for the heavy cabinet for logistics according to claim 1, wherein: the balance ropes (22) are connected to the joints of the safety ropes (12) and the end blocks (7), and the balance ropes (22) are symmetrically arranged on two sides of the telescopic joint (2).

Technical Field

The invention relates to the technical field of logistics, in particular to a support arm of a front crane of a heavy cabinet for logistics.

Background

The crane is a common name of a crane, and the crane is one of hoisting machines and is a machine which does circulating and intermittent motion. One simple duty cycle includes: the fetching device lifts the object from the fetching place, then moves horizontally to the appointed place to lower the object, and then carries out reverse movement to return the fetching device to the original position for carrying out the next circulation. The crane generally includes a fixed type rotary crane, a tower crane, a truck crane, a tire, a crawler crane, and the like.

The crane has very important significance for modern logistics, and the capacity of carrying heavy materials is far beyond the reach of manpower. The current logistics crane is often used for the handling of heavy cabinet, and the transport of crane mainly relies on its support arm structure, and it often includes a plurality of telescopic joints to reach the unsettled transport purpose of material, therefore the support arm structure often is very long and thin, only relies on hydraulic system to support during the use, and the steadiness is not good, has the risk of turning on one's side, especially under some extreme weather. In view of the above, we propose a front crane arm for a heavy cabinet for logistics.

Disclosure of Invention

The invention aims to provide a front crane support arm for a heavy cabinet for logistics, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a support arm of a front crane of a heavy cabinet for logistics comprises a support arm main body, wherein an expansion joint is connected onto the support arm main body, a front support is fixedly mounted on the expansion joint, a lifting appliance is mounted on the front support, a hydraulic rod is connected onto the support arm main body, a safety box is fixedly mounted on the expansion joint, an end block is fixedly mounted on the safety box, a cavity is formed in the safety box, a safety disc is fixedly mounted in the cavity, positioning teeth are fixedly mounted on the safety disc, a winding shaft is rotatably connected onto the safety disc, a safety rope is wound on the winding shaft, a volute spring and a connecting rod are fixedly connected onto the winding shaft, a sliding groove is formed in the connecting rod, a spring is fixedly mounted in the sliding groove, a sliding block is fixedly connected onto the spring, a clamping column is fixedly mounted on the sliding block, a side clamping piece is arranged on the sliding block, and a check groove is, a rope groove is formed in the safe box, and a balance rope is fixedly connected to the safe rope.

Preferably, the telescopic joint is installed at the front end of support arm main part, and the tip at the telescopic joint is installed to the fore-stock, the hoist comprises wire rope and lifting hook, and wire rope connects in the wire casing on support arm main part and telescopic joint, the hydraulic stem is connected between support arm main part and crane base.

Preferably, the safe is mounted at each joint of the telescopic joint, and the end block is mounted at the side of the safe, the safety line being connected between the end block and the safe.

Preferably, the safety disc is arranged at the center of the cavity, the positioning teeth are annularly arranged at the edge of the safety disc, the winding shaft is connected to the circle center of the safety disc and extends to be arranged on two sides of the safety disc, and the safety rope and the volute spiral spring are respectively arranged on two sides of the safety disc.

Preferably, the connecting rod is installed on the winding shaft, the sliding block is installed in the sliding groove in a sliding mode, the spring is connected between the sliding block and the groove surface of the sliding groove, the clamping column is installed at the front end of the sliding block, the side clamping piece is composed of a metal elastic piece and a clamping block, and the check groove is formed in the groove wall of the sliding groove.

Preferably, the balance ropes are connected to the joints of the safety ropes and the end blocks, and the balance ropes are symmetrically arranged on two sides of the telescopic joint.

Compared with the prior art, the invention has the beneficial effects that:

on one hand, a static reinforcing and dynamic damage-stopping safety mechanism is arranged on the telescopic joint of the support arm main body and comprises a safety box and a safety rope connected with the safety box, an overspeed triggering structure is arranged in the safety box, the safety rope is pulled out slowly when the telescopic joint is normally used and is attached to the side surface of the telescopic joint, the effect of reinforcing the maintenance stability can be achieved, when the telescopic joint of the crane is accidentally broken and falls, the safety rope is pulled out quickly, the connecting rod is driven to rotate in an overspeed manner, the clamping column is popped out by centrifugal force and is clamped with the positioning teeth, the safety rope is prevented from being pulled out continuously, the fallen telescopic joint is braked by the safety rope, and personal injury caused by falling of the safety rope is prevented; on the other hand, still additionally be connected with balanced rope on the safety rope, at the in-process that the safety rope used, balanced rope is connected in the both sides of telescopic joint to directly be connected with the crane base, can increase the stability of telescopic joint and support arm main part.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a schematic view of the telescopic joint structure of the present invention;

FIG. 3 is an enlarged view of area A in FIG. 2;

fig. 4 is a schematic diagram of the structure of the safety disc of the present invention.

In the figure: the safety device comprises a support arm main body 1, a telescopic joint 2, a front support 3, a lifting appliance 4, a hydraulic rod 5, a safe box 6, an end block 7, a cavity 8, a safety disc 9, a positioning tooth 10, a winding shaft 11, a safety rope 12, a volute spiral spring 13, a connecting rod 14, a sliding groove 15, a spring 16, a sliding block 17, a clamping column 18, a side clamping piece 19, a check groove 20, a rope groove 21 and a balance rope 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a support arm of a crane on the front side of a heavy cabinet for logistics comprises a support arm main body 1, wherein a telescopic joint 2 is connected to the support arm main body 1, a front support 3 is fixedly installed on the telescopic joint 2, a lifting appliance 4 is installed on the front support 3, a hydraulic rod 5 is connected to the support arm main body 1, a safe box 6 is fixedly installed on the telescopic joint 2, an end block 7 is fixedly installed on the safe box 6, a cavity 8 is formed in the safe box 6, a safe disc 9 is fixedly installed in the cavity 8, a positioning tooth 10 is fixedly installed on the safe disc 9, a winding shaft 11 is rotatably connected to the safe disc 9, a safety rope 12 is wound on the winding shaft 11, a volute spring 13 and a connecting rod 14 are fixedly connected to the winding shaft 11, a sliding groove 15 is formed in the connecting rod 14, a spring 16 is fixedly installed in the sliding groove 15, a sliding block 17 is fixedly connected to the spring 16, a clamping column 18 is fixedly installed on the sliding block 17, and, and the connecting rod 14 is provided with a check groove 20, the safe 6 is provided with a rope groove 21, and the safety rope 12 is fixedly connected with a balance rope 22.

The telescopic joint 2 is arranged at the front end of the support arm main body 1, the front support 3 is arranged at the end part of the telescopic joint 2, the lifting appliance 4 is composed of a steel wire rope and a lifting hook, the steel wire rope is connected in wire grooves on the support arm main body 1 and the telescopic joint 2, the hydraulic rod 5 is connected between the support arm main body 1 and a crane base, the support arm main body 1 is extended through the telescopic joint 2, so that a long rod type lifting structure is formed, the lifting appliance 4 on the front support 3 is used for connecting heavy materials, and the hydraulic rod 5 is used for steering lifting of the suspension arm main body 1;

the safe box 6 is arranged at each joint of the telescopic joint 2, the end block 7 is arranged on the side face of the safe box 6, the safety rope 12 is connected between the end block 7 and the safe box 6, when the telescopic joint 2 is stretched, the distance between the adjacent safe boxes 6 is increased, the safety rope 12 can be pulled out of the safe box 6 through the end block 7, and a certain reinforcing effect is achieved on the telescopic joint 2;

the safety disc 9 is arranged at the center of the cavity 8, the positioning teeth 10 are annularly arranged at the edge of the safety disc 9, the winding shaft 11 is connected to the center of the safety disc 9, the winding shaft 11 extends to be arranged on two sides of the safety disc 9, the safety rope 12 and the volute spiral spring 13 are respectively arranged on two sides of the safety disc 9, the winding shaft 11 is arranged through the safety disc 9, the safety rope 12 can be pulled out of the winding shaft 11 at a low speed, and elastic potential energy is continued in the volute spiral spring 13, so that the safety rope 12 is recovered through the elastic potential energy subsequently;

the connecting rod 14 is installed on the winding shaft 11, the sliding block 17 is installed in the sliding groove 15 in a sliding mode, the spring 16 is connected between the sliding block 17 and the groove surface of the sliding groove 15, the clamping column 18 is installed at the front end of the sliding block 17, the side clamping piece 19 is composed of a metal elastic sheet and a clamping block, the check groove 20 is formed in the groove wall of the sliding groove 15, if the telescopic joint 2 is damaged, the telescopic joint 2 is accidentally broken and falls off when the crane is used, the safety rope 12 on the winding shaft 11 is rapidly pulled out, so that the connecting rod 14 is driven to rotate in an overspeed mode, the sliding block 17 is subjected to centrifugal force exceeding the limit, the pulling force of the spring 16 can be overcome, the clamping column 18 is driven to extend out of the sliding groove 15 and is clamped with the positioning teeth 10, the safety rope 12 is prevented from being continuously pulled out, the fallen telescopic joint 2 is braked by the safety rope 12 to prevent the falling telescopic joint from falling and causing personal injury, the side clamping piece 19 is clamped with the check groove 20, so that the clamping column 18 can be prevented from retracting after the connecting rod 14 is decelerated, and the fixed state of the safety rope 12 is maintained;

the balance ropes 22 are connected to the joints of the safety ropes 12 and the end blocks 7, the balance ropes 22 are symmetrically arranged on two sides of the telescopic joint 2, and in the using process of the safety ropes 12, the balance ropes 22 can increase the stability of the telescopic joint 2 and the support arm main body 1;

the working principle is as follows: firstly, the extension of the arm main body 1 is carried out through the telescopic joint 2, so as to form a long-rod type hoisting structure, a lifting appliance 4 on a front support 3 is used for connecting heavy materials, a hydraulic rod 5 is used for steering and lifting the arm main body 1, in the process of normal use of the arm main body 1, along with the extension of the telescopic joint 2, the distance between adjacent safe boxes 6 is increased, the safety rope 12 can be pulled out of the safe boxes 6 through the end block 7, a certain reinforcing effect is achieved on the telescopic joint 2, the balance rope 22 can increase the stability of the telescopic joint 2 and the arm main body 1, in the process, the safety rope 12 is pulled out from the winding shaft 11 at a slow speed, and the elastic potential energy continues in the spring 13, so that when the telescopic joint 2 retracts, the safety rope 12 is subsequently recovered through the elastic potential energy, if the telescopic joint 2 is damaged, the telescopic joint 2 is accidentally broken and falls off when a crane is used, the safety rope 12 on the winding shaft 11 is rapidly pulled out, so that the connecting rod 14 is driven to rotate at an overspeed, the sliding block 17 is subjected to an over-limit centrifugal force, the pulling force of the spring 16 can be overcome, the clamping column 18 is driven to extend out of the sliding groove 15 and is clamped with the positioning teeth 10, the safety rope 12 is prevented from being continuously pulled out, the falling telescopic joint 2 is braked through the safety rope 12, the falling telescopic joint is prevented from falling to cause personal injury, in the process that the clamping column 18 is thrown out, the side clamping piece 19 is clamped with the check groove 20, the clamping column 18 can be prevented from retracting after the connecting rod 14 is decelerated, and the fixed state of the safety rope 12 is kept.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.