Recyclable temporary protection structure of crown block

Abstract

The invention relates to the technical field of crown blocks, in particular to a turnover temporary protection structure of a crown block. Comprising car stop bodies oppositely arranged on the two sides of the end of a crown block rail in a striding mode, a tensioning assembly is arranged between the car stop bodies, locking pieces opposite to the crown block rail are arranged on the car stop bodies, and after the car stop bodies are in butt joint, an arc-shaped contact face matched with the contour of a crown block wheel is formed on the crown block rail. The arrangement mode that the car stop body is arranged at the end of the rail in a striding mode gets rid of dependence on a permanent foundation, the car stop body can be independently constructed after the rail is installed, and the contradiction between binding of a traditional car stop and the civil engineering progress is effectively solved; the arc-shaped contact surface design ensures matching contact with the crown sheave, and compared with a plane stop block, the impact load can be dispersed more uniformly; the locking piece prevents the car stop from moving through mechanical constraint, the instant requirement for protection facilities in the equipment debugging stage is met, and a flexible safety guarantee scheme is provided for workshop layout adjustment.

Description

Technical Field

[0001] The invention relates to the technical field of overhead cranes, in particular to a temporary protective structure of an overhead crane that can be rotated. Background Art

[0002] In modern industrial production systems, rail-mounted overhead cranes have become critical equipment for material handling on the shop floor, with applications spanning machinery manufacturing, warehousing and logistics, steelmaking, and other fields. With the advancement of intelligent manufacturing technology, the automation level and operating speed of overhead crane equipment are constantly increasing, placing higher demands on supporting safety facilities. Traditional overhead crane safety protection relies primarily on permanent stop structures. This approach requires the simultaneous construction of the stop foundation during the track installation phase, involving multiple processes such as concrete pouring and steel structure welding. The construction period is closely linked to the progress of civil engineering.

[0003] In actual project implementation, due to factors such as workshop layout adjustments, changes in the order of equipment arrival, or delays in civil construction, overhead crane tracks often are installed but permanent stoppers are not in place in a timely manner. Delaying overhead crane commissioning to await stopper construction directly impacts the progress of integrated commissioning of the entire production system. Therefore, resolving the problem of stopper matching during overhead crane installation and commissioning has become a worthy technical issue in the field of industrial equipment installation. Summary of the Invention

[0004] The present invention aims to solve the above problems, thereby providing a temporary protective structure for an overhead crane that can be easily installed.

[0005] The present invention solves the above problems by adopting the following technical solutions: A temporary protective structure for an overhead crane that can be rotated includes a vehicle stop body relatively arranged on both sides of the end of the overhead crane track, a tensioning assembly is arranged between the vehicle stop bodies, and a locking piece opposite to the overhead crane track is provided on the vehicle stop body. After the vehicle stop bodies are docked, an arc-shaped contact surface matching the outline of the overhead crane wheel is formed on the overhead crane track.

[0006] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features: The modular design of the car stop body and the tensioning component combination enables rapid disassembly and reuse of temporary protective facilities. The arrangement of the car stop body across the end of the track eliminates the dependence on permanent foundations, allowing it to be independently constructed after the track installation is completed, effectively solving the contradiction between the traditional car stop and the civil engineering progress; the arc-shaped contact surface design ensures matching contact with the overhead sheave, and can more evenly disperse the impact load than the flat block; the locking part prevents the car stop from moving through mechanical constraints, and can maintain a stable position without welding or concrete fixation. This structure retains the safety protection function of the permanent car stop and has the mobility characteristics of temporary facilities. It is particularly suitable for the immediate demand for protective facilities during the equipment commissioning phase, and provides a flexible safety protection plan for workshop layout adjustments.

[0007] Preferably, a further technical solution of the present invention is: Furthermore, the vehicle stop body includes an inverted L-shaped base, the horizontal section of the base is located opposite to the overhead crane track, and a track plate is extended upward from the top of the vertical surface of the base. A half-track surface forming an arc-shaped contact surface is provided on one side of the track plate. The inverted L-shaped base achieves stable support through the contact between the horizontal section and the top of the track, and the track plate extended from the vertical surface forms a rigid skeleton structure. The half-track surface design enables the protective structure to form a natural transition contact surface with the overhead crane wheel, reducing the risk of impact stress concentration.

[0008] Furthermore, the joints of the half-track surfaces are provided with mutually meshing positioning teeth, which mesh with each other, thereby enhancing the mechanical interlocking effect of the docking parts, helping to maintain the continuity of the arc-shaped contact surface, and preventing the relative displacement of the vehicle stop body when subjected to force.

[0009] Furthermore, the tensioning assembly includes a plurality of tensioning screws, which pass through the relative base facades, and locking nuts are provided on the outside of the tensioning screws. The tensioning screws arranged at intervals form a bidirectional constraint by passing through the base facades, and the pre-tightening force can be adjusted in conjunction with the locking nuts, so that the vehicle stop bodies on both sides form an overall force system, thereby improving the overall stiffness of the temporary structure.

[0010] Furthermore, the locking part includes a tightening hole formed on the vertical surface of the base, a tightening nut is welded on the outer periphery of the tightening hole, and a tightening bolt is threaded into the tightening nut and passes through the tightening hole and is opposite to the web of the overhead crane track. The combined design of the tightening hole and the tightening nut allows the end of the tightening bolt to rest against the web of the track, thereby generating radial friction to resist the impact load of the overhead crane. This mechanical locking method can achieve reliable fixation without destroying the track structure.

[0011] Furthermore, a wear-resistant liner is detachably connected to the arc-shaped contact surface by bolts. The bolted liner is easy to replace after wear, and its material properties can absorb impact energy and reduce the risk of wheel slip. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of an embodiment of the present invention; The following are marked in the figure: vehicle stop body 1, base 11, track plate 12, half track surface 13, overhead crane track 2, tension screw 3, tightening nut 4, and tightening bolt 5. DETAILED DESCRIPTION

[0013] The present invention will be further described below with reference to the embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0014] A temporary protective structure for an overhead crane that can be rotated includes a vehicle stop body 1 that is relatively arranged on both sides of the end of the overhead crane track 2, a tensioning assembly is arranged between the vehicle stop bodies 1, and a locking part opposite to the overhead crane track 2 is provided on the vehicle stop body 1. After the vehicle stop body 1 is docked, an arc-shaped contact surface that matches the outline of the overhead crane wheel is formed on the overhead crane track 2.

[0015] Furthermore, the vehicle stop body 1 includes an inverted L-shaped base 11, the horizontal section of the base 11 is located opposite to the overhead crane track 2, and a track plate 12 is extended upward from the top of the vertical surface of the base 11. A half-track surface 13 constituting an arc-shaped contact surface is provided on one side of the track plate 12. The vertical surface of the base 11 and the track plate 12 are integrally formed. The inverted L-shaped base 11 achieves stable support through the contact between the horizontal section and the top of the track. The track plate 12 extending from the vertical surface forms a rigid skeleton structure. The design of the half-track surface 13 enables the protective structure to form a natural transition contact surface with the overhead crane wheel, thereby reducing the risk of impact stress concentration.

[0016] Furthermore, the joints of the half-track surfaces 13 are provided with mutually meshing positioning teeth, which mesh with each other, thereby enhancing the mechanical interlocking effect of the docking parts, helping to maintain the continuity of the arc-shaped contact surface, and preventing the vehicle stop body 1 from undergoing relative displacement when subjected to force.

[0017] Furthermore, the tensioning assembly includes a plurality of tensioning screws 3, which pass through the relative vertical surfaces of the base 11, and a locking nut is provided on the outside of the tensioning screw 3. The tensioning screw 3 forms a bidirectional constraint by passing through the vertical surface of the base 11, and the pre-tightening force can be adjusted in conjunction with the locking nut, so that the vehicle stop bodies 1 on both sides form an overall force system, thereby improving the overall stiffness of the temporary structure.

[0018] Furthermore, the locking part includes a tightening hole formed on the vertical surface of the base 11, a tightening nut 4 is welded to the outer periphery of the tightening hole, and a tightening bolt 5 is threaded into the tightening nut 4 and passes through the tightening hole and is opposite to the web of the overhead crane track 2. The combined design of the tightening hole and the tightening nut 4 enables the end of the tightening bolt 5 to rest against the web of the track by tightening it, thereby generating radial friction to resist the impact load of the overhead crane. This mechanical locking method can achieve reliable fixation without destroying the track structure.

[0019] Furthermore, a wear-resistant lining is detachably connected to the arc-shaped contact surface by bolts. The wear-resistant lining is made of a polymer wear-resistant material. The bolted lining is easy to replace after wear, and its material properties can absorb impact energy and reduce the risk of wheel slip.

[0020] The operator places the horizontal section of the inverted L-shaped base 11 across both sides of the track end, and screws the tightening bolts 5 into the tightening nuts 4 welded on the vertical surface of the base 11, so that the ends of the bolts are pressed against the track web to form a mechanical constraint; then the half-track surfaces 13 on both sides are precisely engaged and aligned through the positioning teeth, and the tensioning screws 3 passing through the vertical surface of the base 11 tighten the vehicle stop body 1 into a whole under the action of the locking nuts. At this time, the arc-shaped contact surface forms a continuously matching contact area with the overhead wheel; during the debugging process, if the overhead crane accidentally goes offside, the wheel first contacts the removable wear-resistant lining, and the impact energy is transmitted to the integral vehicle stop body 1 through the half-track surface 13 and is evenly dispersed by the tensioning assembly; after completing the debugging, only the locking parts need to be loosened to disassemble the entire device and turn it over to the next working position. This process not only meets the immediate protection needs of the overhead crane debugging stage, but also avoids project delays due to waiting for the progress of civil engineering.

[0021] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent changes made using the contents of the present invention specification and its drawings are included in the scope of the present invention.

Claims

1. A temporary protective structure for an overhead crane, characterized by: It includes a vehicle stop body relatively spanned on both sides of the end of the overhead crane track, a tensioning assembly is arranged between the vehicle stop bodies, and a locking part opposite to the overhead crane track is arranged on the vehicle stop body. After the vehicle stop body is docked, an arc-shaped contact surface matching the outline of the overhead crane wheel is formed on the overhead crane track.

2. The temporary protective structure for an overhead crane according to claim 1, characterized in that: The car stop body includes an inverted L-shaped base, the horizontal section of the base is located above the overhead crane track, and a track plate is extended upward from the top of the vertical surface of the base, and a half track surface forming an arc-shaped contact surface is provided on one side of the track plate.

3. The temporary protective structure for an overhead crane according to claim 2, characterized in that: The joints of the half-track surfaces are provided with mutually meshing positioning teeth.

4. The temporary protective structure for an overhead crane according to claim 2, characterized in that: The tensioning assembly includes a plurality of tensioning screws, the tensioning screws pass through the relative base facades, and locking nuts are provided on the outer sides of the tensioning screws.

5. The temporary protective structure for an overhead crane according to claim 2, characterized in that: The locking member comprises a tightening hole provided on the vertical surface of the base, a tightening nut is welded on the outer periphery of the tightening hole, and a tightening bolt which passes through the tightening hole and is opposite to the web of the overhead travelling vehicle track is screwed into the tightening nut.

6. The temporary protective structure for an overhead crane according to claim 1, characterized in that: The arc-shaped contact surface is detachably connected with a wear-resistant lining via bolts.

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