Automatic anchoring device for crane trolley

Abstract

This utility model discloses an automatic anchoring device for a crane trolley, including a crossbeam. A crane trolley is slidably mounted on the upper side of the crossbeam. The upper sides of both ends of the crossbeam are respectively provided with locking structures corresponding to the left and right side walls of the crane trolley. The locking structures are electrically connected to external control equipment. Locking rings are fixedly mounted on the left and right side walls of the crane trolley corresponding to the locking structures. When one side of the crane trolley travels to the locking structure, it can automatically lock into the locking structure through the locking ring. By setting the locking structures, when the crane trolley needs to be anchored, the operator only needs to control the crane trolley to move towards the locking structure until the locking structure locks into the locking ring. This process does not require the operator to aim at the anchoring point, and the anchoring is fast and stable, allowing for timely response to emergencies.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to an automatic anchoring device for a crane trolley. Background Art

[0002] Cranes are mainly used for loading and unloading operations in outdoor cargo yards, material yards, and bulk cargo. Their metal structure is like a door-shaped frame, with two legs installed under the load-bearing main beam. They can run directly on the ground track, and both ends of the main beam can have outward cantilever beams. They have the characteristics of high site utilization, large operating range, wide adaptability, and strong versatility.

[0003] Currently, two drivers are required to anchor or unanchor the trolley on the crane. One driver operates the action instructions in the driver's cab, and the other operates the anchor pin on the trolley platform when the opportunity arises to anchor or unanchor it, resulting in a waste of manpower. Especially when encountering sudden strong winds, the second person cannot arrive in time, resulting in the equipment not being anchored in time. Utility Model Content

[0004] In view of the technical problems in the above-mentioned prior art, the utility model provides an automatic anchoring device for a crane trolley, aiming to solve the above-mentioned problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An automatic anchoring device for a crane trolley comprises a crossbeam, on the upper side of which a lifting trolley is slidably provided. The device is characterized in that: the upper side surfaces at both ends of the crossbeam are respectively provided with clamping structures corresponding to the left and right side walls of the lifting trolley, the clamping structures are electrically connected to an external control device, and the left and right side walls of the lifting trolley are respectively fixed with clamping rings corresponding to the clamping structures. When one side of the lifting trolley travels to the clamping structure, it can automatically clamp into the clamping structure through the clamping ring.

[0007] Preferably, the clamping structure includes a fixed block, a side of the fixed block facing the lifting trolley is provided with an insertion port adapted to the size of the clamping ring, the insertion port corresponds to the position of the clamping ring, an insertion rod is vertically provided on the upper side of the fixed block, the lower end of the insertion rod passes downward through the fixed block and extends to the insertion port, a limit block is provided on the top of the insertion rod corresponding to the upper side of the fixed block, and one end of the insertion rod located in the insertion port is provided with an inclined surface inclined from top to bottom into the insertion port, and when the clamping ring is inserted into the insertion port, the lower end of the insertion rod can be inserted downward into the clamping ring.

[0008] Preferably, a movable cavity is longitudinally opened in the fixed block corresponding to the part of the insertion rod located in the fixed block, and a limiting slider slidably connected to the movable cavity is provided at the bottom of the movable cavity of the insertion rod. A spring is also provided on the upper side of the limiting slider in the movable cavity, and the spring is inserted on the insertion rod.

[0009] Preferably, a buffer pad is provided on the side of the fixing block facing the lifting trolley, and the buffer pad is arranged on the periphery of the insertion port.

[0010] Preferably, a support block is fixedly provided on the side of the fixed block facing away from the insertion port, a first hydraulic cylinder is longitudinally fixedly provided on the upper side of the support block, the first hydraulic cylinder is connected to an external hydraulic device, and the limit block at the top of the insertion rod extends laterally toward the first hydraulic cylinder to the top of the first hydraulic cylinder.

[0011] Preferably, a second hydraulic cylinder is transversely provided at the corresponding insertion port in the support block, the second hydraulic cylinder is connected to the external hydraulic equipment, the piston rod of the second hydraulic cylinder transversely passes through the support block and extends into the insertion port, and the piston rod of the second hydraulic cylinder is slidably connected to the support block.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model provides an automatic anchoring device for a crane trolley. When the trolley needs to be anchored, the external control device controls the lifting trolley to move left or right until the clamping ring is inserted into the insertion port. When inserting, the clamping ring first touches the inclined surface of the insertion rod. When the lifting trolley continues to move, the clamping ring can lift the insertion rod until the side wall of the lifting trolley abuts against the buffer pad. At this time, the insertion rod is inserted downward into the clamping ring under the action of the spring, thereby completing the anchoring of the lifting trolley. There is no need for the staff to aim at the anchoring point. The anchoring is fast and stable, and the emergency situation can be responded to in time.

[0014] When releasing the anchor, firstly, the piston rod of the first hydraulic cylinder is controlled to extend through the external hydraulic equipment to lift the limit block of the plug-in rod, so as to pull the plug-in rod out of the clamping ring, and then the piston rod of the second hydraulic cylinder is controlled to extend to insert the top of the clamping ring into the plug-in port, so as to release the anchor. It is convenient, fast and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of an automatic anchoring device for a crane trolley according to the utility model (not anchored);

[0016] Figure 2 It is a schematic diagram of the clamping structure and the clamping ring clamping structure of the automatic anchoring device of the crane trolley described in the utility model (anchoring).

[0017] In the figure: 1. crossbeam; 2. lifting trolley; 21. clamping ring; 3. clamping structure; 31. fixing block; 32. insertion port; 33. insertion rod; 34. limit block; 35. inclined plane; 36. movable cavity; 37. limit slider; 38. spring; 39. buffer pad; 4. support block; 41. first hydraulic cylinder; 42. second hydraulic cylinder. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2 In the embodiment proposed in the present application, a crane trolley automatic anchoring device comprises a cross beam 1, a lifting trolley 2 is slidably provided on the upper side of the cross beam 1, and a clamping structure 3 is respectively provided on the upper side surfaces at both ends of the cross beam 1 corresponding to the left and right side walls of the lifting trolley 2, the clamping structure 3 is electrically connected to the external control device, and a clamping ring 21 is respectively fixedly provided on the left and right side walls of the lifting trolley 2 corresponding to the clamping structure 3, when one side of the lifting trolley 2 travels to the clamping structure 3, it can be automatically clamped into the clamping structure 3 through the clamping ring 21;

[0020] By setting the clamping structure 3, when the lifting trolley 2 needs to be anchored, the staff only needs to control the lifting trolley 2 to move toward the clamping structure 3 until the clamping structure 3 is clamped with the clamping ring 21. In this process, the staff does not need to aim at the anchoring point. The anchoring is fast and stable, and emergencies can be responded to in time.

[0021] In another embodiment, see Figure 1-2 The clamping structure 3 includes a fixing block 31, and a plug-in port 32 that is adapted to the size of the clamping ring 21 is opened on the side of the fixing block 31 facing the lifting trolley 2, and the plug-in port 32 corresponds to the position of the clamping ring 21. A buffer pad 39 is provided on the side of the fixing block 31 facing the lifting trolley 2, and the buffer pad 39 is arranged on the periphery of the plug-in port 32 to reduce the impact force when the lifting trolley 2 is inserted. An insertion rod 33 is vertically provided on the upper side of the fixing block 31, and the lower end of the insertion rod 33 passes through the fixing block 31 downward and extends to the insertion port 32. A limit block 34 is provided on the top of the insertion rod 33 corresponding to the upper side of the fixing block 31, and one end of the insertion rod 33 located in the insertion port 32 is provided with an inclined surface 35 inclined from top to bottom into the insertion port 32. When the clamping ring 21 is inserted into the insertion port 32, the lower end of the insertion rod 33 can be inserted downward into the clamping ring 21.

[0022] At the same time, a movable cavity 36 is longitudinally opened in the portion of the fixed block 31 corresponding to the insertion rod 33 located in the fixed block 31, and a limit slider 37 slidably connected to the movable cavity 36 is provided at the bottom of the movable cavity 36 where the insertion rod 33 is located. A spring 38 is also provided in the movable cavity 36 on the upper side of the limit slider 37, and the spring 38 is inserted on the insertion rod 33;

[0023] When the trolley needs to be anchored, the lifting trolley 2 is controlled by the external control device to move left or right until the clamping ring 21 is inserted into the insertion port 32. When inserting, the clamping ring 21 first touches the inclined surface 35 of the insertion rod 33. As the lifting trolley 2 continues to move, the clamping ring 21 can lift the insertion rod 33 until the side wall of the lifting trolley 2 abuts against the buffer pad 39. At this time, the insertion rod 33 is inserted downward into the clamping ring 21 under the action of the spring 38, thereby completing the anchoring of the lifting trolley 2. There is no need for the staff to aim at the anchoring point, and the anchoring is fast and stable. The external control equipment, control method and working principle of the lifting trolley 2 here are all existing technologies and commonly used means by technical personnel in this field.

[0024] In another embodiment, see Figure 1-2 A support block 4 is fixedly arranged on the side of the fixed block 31 facing away from the insertion port 32, a first hydraulic cylinder 41 is longitudinally fixedly arranged on the upper side of the support block 4, the first hydraulic cylinder 41 is connected with external hydraulic equipment, a limit block 34 at the top of the insertion rod 33 extends transversely to the top of the first hydraulic cylinder 41 in the direction of the first hydraulic cylinder 41, a second hydraulic cylinder 42 is transversely arranged at the corresponding insertion port 32 in the support block 4, the second hydraulic cylinder 42 is connected with external hydraulic equipment, a piston rod of the second hydraulic cylinder 42 transversely passes through the support block 4 and extends into the insertion port 32, and the piston rod of the second hydraulic cylinder 42 is slidably connected with the support block 4;

[0025] When the lifting trolley 2 needs to be unanchored, firstly, the piston rod of the first hydraulic cylinder 41 is controlled to extend through the external hydraulic equipment to lift the limit block 34 of the insertion rod 33, so as to pull the insertion rod 33 out of the clamping ring 21, and then the piston rod of the second hydraulic cylinder 42 is controlled to extend to insert the insertion port 32 at the top of the clamping ring 21, so as to release the anchoring; the operation is convenient and quick, and the external hydraulic equipment and the connection method with the hydraulic cylinder are all prior art.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic anchoring device for a crane trolley, comprising a crossbeam (1), a crane trolley (2) being slidably arranged on the upper side of the crossbeam (1), characterized in that: The upper side surfaces at both ends of the cross beam (1) are respectively provided with a clamping structure (3) corresponding to the left and right side walls of the lifting trolley (2); the clamping structure (3) is electrically connected to an external control device; the left and right side walls of the lifting trolley (2) are respectively fixed with a clamping ring (21) corresponding to the clamping structure (3); when one side of the lifting trolley (2) travels to the clamping structure (3), it can be automatically clamped into the clamping structure (3) through the clamping ring (21).

2. According to claim 1, the automatic anchoring device for a crane trolley is characterized in that: The clamping structure (3) comprises a fixed block (31). A plug-in opening (32) matching the size of the clamping ring (21) is provided on a side of the fixed block (31) facing the lifting trolley (2). The plug-in opening (32) corresponds to the position of the clamping ring (21). A plug-in rod (33) is vertically provided on the upper side of the fixed block (31). The lower end of the plug-in rod (33) passes through the fixed block (31) downward and extends to the plug-in opening (32). A limit block (34) is provided on the top of the plug-in rod (33) corresponding to the upper side of the fixed block (31). An end of the plug-in rod (33) located in the plug-in opening (32) is provided with an inclined surface (35) inclined from top to bottom into the plug-in opening (32). When the clamping ring (21) is inserted into the plug-in opening (32), the lower end of the plug-in rod (33) can be inserted downward into the clamping ring (21).

3. The automatic anchoring device for a crane trolley according to claim 2, characterized in that: The fixed block (31) is longitudinally provided with an active cavity (36) at a portion of the fixed block (31) corresponding to the insertion rod (33); the insertion rod (33) is provided with a limit slider (37) slidably connected to the active cavity (36) at the bottom of the active cavity (36); a spring (38) is also provided on the upper side of the limit slider (37) in the active cavity (36); the spring (38) is inserted on the insertion rod (33).

4. The automatic anchoring device for a crane trolley according to claim 2, characterized in that: A buffer pad (39) is provided on the side of the fixing block (31) facing the lifting trolley (2), and the buffer pad (39) is arranged on the periphery of the insertion port (32).

5. The automatic anchoring device for a crane trolley according to claim 2, characterized in that: A support block (4) is fixedly provided on the side of the fixed block (31) facing away from the insertion port (32); a first hydraulic cylinder (41) is longitudinally fixedly provided on the upper side of the support block (4); the first hydraulic cylinder (41) is connected to an external hydraulic device; and a limit block (34) at the top of the insertion rod (33) extends transversely in the direction of the first hydraulic cylinder (41) to the top of the first hydraulic cylinder (41).

6. The automatic anchoring device for a crane trolley according to claim 5, characterized in that: A second hydraulic cylinder (42) is transversely arranged at a position corresponding to the insertion port (32) in the support block (4); the second hydraulic cylinder (42) is connected to an external hydraulic device; a piston rod of the second hydraulic cylinder (42) transversely passes through the support block (4) and extends into the insertion port (32); the piston rod of the second hydraulic cylinder (42) is slidably connected to the support block (4).

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