Self-positioning locking device for travelling crane

Abstract

The utility model relates to the technical field of cranes, in particular to a self-positioning locking device for a travelling crane, which comprises a travelling crane body, a sliding support arranged below the travelling crane body, a rail arranged below the sliding support, the sliding support moving along the extending direction of the rail, a roller group arranged at the bottom of the sliding support and abutted against the rail, and a locking device arranged on the rail. The rolling wheel set comprises a first supporting shell, a second supporting shell movably arranged at the bottom of the first supporting shell and rolling wheels rotationally arranged at the bottom of the second supporting shell, the multiple rolling wheels abut against the track, and a positioning locking device is further arranged on one side of the track. The positioning and locking device can be connected to the circumferential surface of the roller in a clamping and embedding manner, the positioning and locking device comprises a mounting block and a rotating plate, the mounting block is detachably connected to the track, one end of the rotating plate is rotatably connected to the mounting block, the other end of the rotating plate can abut against the circumferential surface of the roller, and a telescopic head is arranged on the track and located below the abutting head.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a self-positioning locking device for a crane. Background Art

[0002] A crane, commonly known as a gantry crane, overhead crane, or overhead crane, is widely used in industries such as docks and metallurgy, lifting billets, coils, rolls, and containers. A crane is an intermittent mechanism characterized by frequent starting and braking. Therefore, the brake serves as both a working mechanism and a safety device during crane operation. Brakes have three functions: supporting, stopping, and lowering loads. However, traditional cranes generally lack automatic positioning capabilities, requiring the operator to visually determine the position of the crane and cargo. This results in low accuracy, inefficiency, high labor costs, and potential safety hazards. In recent years, with the continuous advancement of information technology and the widespread adoption of ERP and MES systems, unmanned cranes have achieved unmanned operation and precise positioning capabilities through the application of automation technologies and intelligent warehouse management systems in warehouse management. Accurately locating the material's exact location is a prerequisite for automated lifting, and ensuring locking after positioning is crucial for unmanned crane operation. For example, Chinese patent CN202322444441.8 discloses a gantry crane anti-collision self-stop device, including a crane, the crane is used to make the gantry crane travel on the track, the end of the crane is provided with a limit switch, the limit switch is a piezoelectric switch, the end of the crane is also provided with a brake assembly, the brake assembly includes a vertically arranged guide groove, a guide cylinder, and a threaded rod, the guide cylinder is provided with an axial hole, the inner wall of the axial hole is provided with a thread, the threaded rod is engaged with the axial hole, the brake assembly also includes a motor, the motor is used to drive the threaded rod to rotate, the motor is electrically connected to the limit switch, when the threaded rod rotates, it drives the guide cylinder to move along the guide groove. The above patent uses a piezoelectric switch instead of a wireless detector, which greatly reduces the possibility of false alarms and ensures the stability of the brake. However, after the crane stops, a certain amount of shaking will occur during the suspension process. The above patent cannot ensure that the crane can be stably locked after the crane stops.

[0003] Therefore, it is necessary for those skilled in the art to provide a self-positioning locking device for a vehicle to improve the accuracy of vehicle braking, ensure that the vehicle can be stably locked after braking, and further ensure processing stability. Utility Model Content

[0004] The utility model aims to provide a self-positioning locking device for a vehicle, so as to solve the technical problem in the prior art that after the vehicle stops, a certain amount of shaking will occur during the suspension process, thereby affecting the stability of the suspension.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a self-positioning locking device for a traveling crane, comprising a traveling crane body, a sliding bracket provided under the traveling crane body, a track provided under the sliding bracket, the sliding bracket moves along the extension direction of the track, a roller group is provided at the bottom of the sliding bracket, the roller group abuts on the track, the roller group comprises a first support shell and a second support shell movably arranged at the bottom of the first support shell, and a roller rotatably arranged at the bottom of the second support shell, a plurality of rollers are provided and abut against the track, a positioning locking device is further provided on one side of the track, the positioning locking device can be snap-fitted and connected to the circumferential surface of the roller, the positioning locking device comprises a mounting block and a rotating plate, the mounting block is detachably connected to the track, one end of the rotating plate is rotatably connected to the mounting block, and the other end of the rotating plate can abut the circumferential surface of the roller, an elastic member is provided at the bottom of the rotating plate, the elastic member is elastically connected to the bottom of the rotating plate and abuts the rotating plate, a telescopic head is provided on the track below the abutment head, the axis of the telescopic head is vertically arranged and telescopically arranged on the track, and the telescopic head can abut the elastic member.

[0006] Furthermore, an abutment joint is provided at one end of the rotating plate away from the mounting block, a surface of the abutment joint abutting the roller is flat, and a surface of the abutment joint away from the roller is arcuate.

[0007] Furthermore, the elastic member is a spring plate.

[0008] Furthermore, the first supporting shell is movably disposed at the bottom of the sliding bracket, and the second supporting shell is also movably disposed at the bottom of the first supporting shell, and a plurality of the second supporting shells are provided.

[0009] Furthermore, the roller is rotatably arranged in the second supporting shell, the roller is made of stainless steel, a groove is provided on the outer contour of the roller, and a protrusion is provided on the track, and the protrusion is snap-fitted into the groove.

[0010] Furthermore, two first supporting shells are provided and are symmetrically arranged at the bottom of the sliding bracket, and two second supporting shells are provided and are symmetrically arranged at the bottom of the first supporting shell.

[0011] The beneficial effects of the present invention are as follows: the present invention utilizes a positioning and locking device to achieve rapid positioning and locking of the vehicle. When the vehicle moves to the positioning and locking device, the rotating plate will tightly fit against the circumferential surface of the roller, and the resistance generated by the abutment joint will be used to achieve automatic positioning, which is convenient for the operator to pre-position and ensures stability during use. The telescopic head is then used to tightly fit the abutment joint against the circumferential surface of the roller, ensuring that the roller cannot move. In this way, the present invention ensures stable suspension after the vehicle is braked, effectively preventing the vehicle from deviating due to swaying or movement of the cargo, and improving stability and safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the self-positioning locking device for a vehicle according to the present invention.

[0013] Figure 2 It is a three-dimensional diagram of the positioning and locking device in the utility model.

[0014] Figure 3 yes Figure 2 main view.

[0015] Figure 4 yes Figure 2 A partial enlarged schematic diagram of part A in the middle.

[0016] The components in the accompanying drawings are marked as follows: 10, trolley body; 11, sliding bracket; 12, track; 121, protrusion; 13, roller group; 131, first support shell; 132, second support shell; 133, roller; 134, groove; 14, positioning and locking device; 141, mounting block; 142, rotating plate; 143, elastic member; 144, telescopic head; 146, abutment head. DETAILED DESCRIPTION

[0017] The present invention will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, and therefore only shows the components related to the present invention.

[0018] See also Figure 1 The present invention provides a self-positioning and locking device for a trolley, comprising a trolley body 10, a sliding bracket 11 disposed below the trolley body 10, and a track 12 disposed below the sliding bracket 11. The sliding bracket 11 moves along the extension direction of the track 12. A roller assembly 13 is disposed at the bottom of the sliding bracket 11, and the roller assembly 13 abuts against the track 12 to drive the sliding bracket 11 to move and ensure smooth movement.

[0019] In this embodiment, the trolley body 10 and the sliding bracket 11 are both made of steel structure to ensure the stability of connection and transportation.

[0020] Further, see Figure 2 The roller assembly 13 includes a first supporting shell 131, a second supporting shell 132 movably disposed at the bottom of the first supporting shell 131, and a roller 133 rotatably disposed at the bottom of the second supporting shell 132. There are multiple second supporting shells 132, and there are multiple rollers 133 that abut against the track 12.

[0021] The first support shell 131 is movably arranged at the bottom of the sliding bracket 11 by means of rivets or other limiting members, and the second support shell 132 is also movably arranged at the bottom of the first support shell 131 by means of rivets or other limiting members, so that the second support shell 132 can rotate at a small angle around the axis of the limiting member on the first support shell 131, and the first support shell 131 can also rotate at a small angle around the axis of the limiting member on the sliding bracket 11. When in use, the weight of the cargo suspended on the sliding bracket 11 is large and it moves on the driving body 10, resulting in the sliding bracket 11 is subjected to uneven force, and some rollers 133 are prone to falling off the track 12. Therefore, the present invention arranges a movable connection between the sliding bracket 11 and the roller group 13, so that the first support shell 131 and the second support shell 132 can rotate at a small angle, thereby making the connection of the sliding bracket 11 on the track 11 more flexible, and the force-bearing position of the roller group 13 can be flexibly changed according to the force direction of the sliding bracket 11, thereby preventing extrusion damage caused by a rigid connection, improving the use stability of the present invention, and thus ensuring the stability of the sliding bracket 11 moving on the track 12.

[0022] In this embodiment, two first support shells 131 are provided and are symmetrically arranged at the bottom of the sliding bracket 11, and two second support shells 132 are provided and are symmetrically arranged at the bottom of the first support shell 131. In this way, the uniformity of force and the stability of the connection can be effectively guaranteed by the symmetrical arrangement of the two first support shells 131 and the two second support shells 132.

[0023] Further, see Figure 3 、 Figure 4 The roller 133 is rotatably arranged in the second support shell 132 by means of a bearing. The roller 133 is made of stainless steel. A groove 134 is provided on the outer contour of the roller 133. The track 12 is provided with a protrusion 121, which is snap-fitted into the groove 134 to ensure the stability of the connection.

[0024] The track 12 is further provided with a positioning and locking device 14 on one side of the protrusion 121 . The positioning and locking device 14 can be snap-fitted and connected to the circumferential surface of the roller 133 to achieve positioning and locking of the roller 133 .

[0025] The positioning and locking device 14 includes a mounting block 141 and a rotating plate 142. The mounting block 141 is detachably connected to the track 12. One end of the rotating plate 142 is rotatably connected to the mounting block 141, and the other end of the rotating plate 142 can abut the circumferential surface of the roller 133. An elastic member 143 is provided at the bottom of the rotating plate 142. The elastic member 143 is elastically connected to the bottom of the rotating plate 142 and abuts the rotating plate 142. Under the elastic action of the elastic member 143, the rotating plate 142 can be tightly attached to the circumferential surface of the roller 133.

[0026] In this embodiment, the elastic member 143 includes but is not limited to a spring plate. The spring plate has a certain stroke, so that the end of the rotating plate 142 away from the mounting block 141 is partially higher than the upper plane of the track 12 in a normal state.

[0027] An abutment joint 146 is provided at one end of the rotating plate 142 away from the mounting block 141. The side of the abutment joint 146 abutting the roller 133 is flat, and the side of the abutment joint 146 away from the roller 133 is curved, so as to ensure that the roller 133 can smoothly roll from the outside to the rotating plate 142. At the same time, the abutment of the flat surface against the roller 133 can increase the holding force, so that the roller 133 cannot easily fall out. The resistance generated by the abutment joint 146 facilitates the operator's pre-positioning and ensures stability during use.

[0028] A telescopic head 144 is provided on the track 12 below the abutment head 146. The axis of the telescopic head 144 is vertically arranged and telescopically arranged on the track 12. The telescopic head 144 can abut the elastic member 143. When in use, the telescopic head 144 is driven upward by a hydraulic cylinder to abut the elastic member 143, so that the abutment head 146 is tightly fitted to the circumferential surface of the roller 133, ensuring that the roller 133 cannot move, thereby ensuring the stability of the utility model during use.

[0029] The specific operation of the present invention is as follows: the sliding bracket 11 is driven to move on the track 12. When the rollers 133 move to the positioning and locking device 14, one roller 133 is locked and connected to the top of the rotating plate 142. At the same time, the rotating plate 142 automatically abuts the roller 133 under the elasticity of the elastic member 143, completing the pre-positioning. The hydraulic cylinder drives the telescopic head 144 upward, so that the abutment head 146 tightly fits the circumferential surface of the roller 133, ensuring that the roller 133 cannot move, completing the positioning and locking.

[0030] The present invention utilizes the positioning and locking device 14 to quickly position and lock the vehicle. When the vehicle moves to the positioning and locking device 14, the rotating plate 142 tightly fits against the circumference of the roller 133. The resistance generated by the abutment 146 achieves automatic positioning, facilitating pre-positioning by the operator and ensuring stability during use. The telescopic head 144 then tightly fits the abutment 146 against the circumference of the roller 133, preventing it from moving. This ensures stable suspension after the vehicle is braked, effectively preventing vehicle deviation caused by swaying or movement of cargo, and improving stability and safety.

[0031] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A self-positioning locking device for a traveling vehicle, comprising a traveling vehicle body (10), a sliding bracket (11) provided below the traveling vehicle body (10), a track (12) provided below the sliding bracket (11), the sliding bracket (11) moving along the extension direction of the track (12), characterized in that: The bottom of the sliding bracket (11) is provided with a roller group (13), the roller group (13) is in contact with the track (12), the roller group (13) includes a first support shell (131) and a second support shell (132) movably arranged at the bottom of the first support shell (131), and a roller (133) rotatably arranged at the bottom of the second support shell (132), the roller (133) is provided with a plurality of rollers (133) and is in contact with the track (12), and a positioning locking device (14) is further provided on one side of the track (12), the positioning locking device (14) can be snap-fitted to the circumferential surface of the roller (133), and the positioning locking device (14) includes a mounting block (141 ) and a rotating plate (142), the mounting block (141) is detachably connected to the track (12), one end of the rotating plate (142) is rotatably connected to the mounting block (141), the other end of the rotating plate (142) can abut the circumferential surface of the roller (133), an elastic member (143) is provided at the bottom of the rotating plate (142), the elastic member (143) is elastically connected to the bottom of the rotating plate (142) and abuts the rotating plate (142), a telescopic head (144) is provided on the track (12) below the abutting head (146), the axis of the telescopic head (144) is vertically arranged and telescopically arranged on the track (12), and the telescopic head (144) can abut the elastic member (143).

2. The vehicle self-positioning locking device according to claim 1, characterized in that: An abutment joint (146) is provided at one end of the rotating plate (142) away from the mounting block (141); a surface of the abutment joint (146) abutting the roller (133) is flat, and a surface of the abutment joint (146) away from the roller (133) is curved.

3. The vehicle self-positioning locking device according to claim 1, characterized in that: The elastic member (143) is a spring plate.

4. The vehicle self-positioning locking device according to claim 1, characterized in that: The first supporting shell (131) is movably arranged at the bottom of the sliding bracket (11), and the second supporting shell (132) is also movably arranged at the bottom of the first supporting shell (131), and a plurality of the second supporting shells (132) are provided.

5. The vehicle self-positioning locking device according to claim 4, characterized in that: The roller (133) is rotatably arranged in the second supporting shell (132). The roller (133) is made of stainless steel. A groove (134) is provided on the outer contour of the roller (133). The track (12) is provided with a protrusion (121), and the protrusion (121) is snap-fitted into the groove (134).

6. The vehicle self-positioning locking device according to claim 4, characterized in that: Two first supporting shells (131) are provided and symmetrically arranged at the bottom of the sliding bracket (11), and two second supporting shells (132) are provided and symmetrically arranged at the bottom of the first supporting shell (131).

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