Novel portal crane

Abstract

The utility model discloses a novel portal crane and relates to the technical field of cranes. The novel portal crane comprises a transverse support, a longitudinal support, a hoisting assembly and a moving assembly, the transverse support is fixedly locked and connected with the longitudinal support through bolts, the longitudinal support comprises an adjusting support and a supporting support, the adjusting support is embedded in the supporting support, and a plurality of adjusting holes are formed in the adjusting support and the supporting support in a penetrating mode. A moving assembly is mounted on the supporting bracket, a hoisting assembly is mounted on the transverse bracket in a sliding manner, the moving assembly comprises a plurality of moving wheels and stable supporting legs, the moving wheels are mounted at the bottom end of the supporting bracket through wheel carriers, and the stable supporting legs are positioned on the outer sides of the moving wheels and are in threaded connection with the supporting bracket. The portal crane disclosed by the utility model is simple in structure and stronger in mobility, and the lifting position can be flexibly changed; the stability of the crane during lifting is enhanced through the stable supporting legs, the lifting height is adjusted through the adjusting support, the detachability of the whole structure is higher, and carrying and transferring are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, and more specifically to a novel gantry crane. Background Art

[0002] A gantry crane (also known as a gantry crane) is a type of bridge crane whose bridge is supported on ground tracks by two outriggers. Some users have limited requirements for the lifting weight of a gantry crane, but place high demands on its flexibility, support stability, and adjustability. For example, an auto repair shop might need to hoist an engine, but only use a crane to remove it when it needs to be disassembled. To improve the crane's flexibility, support stability, and adjustability, the gantry crane structure proposed in this case was proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a new type of gantry crane in order to solve the above technical problems.

[0004] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0005] A new type of gantry crane includes a transverse support, a longitudinal support, a lifting assembly, and a moving assembly. The transverse support is locked and connected to the longitudinal support by bolts. The longitudinal support includes an adjusting bracket and a supporting bracket. The adjusting bracket is nested in the supporting bracket, and the adjusting bracket and the supporting bracket are penetrated by a plurality of adjusting holes. The adjusting bracket is connected to the supporting bracket by bolts. A moving assembly is installed on the supporting bracket. A lifting assembly is slidably installed on the transverse support. The supporting bracket is a T-shaped structure, and an inclined rod is welded on the supporting bracket. The moving assembly includes a plurality of moving wheels and stabilizing legs. The moving wheels are installed on the bottom end of the supporting bracket through a wheel frame, and the stabilizing legs are located on the outside of the moving wheels. The stabilizing legs are threadedly connected to the supporting bracket.

[0006] A better technical solution: a rubber block is provided at the bottom end of the stabilizing leg.

[0007] A preferred technical solution: a rotating handle is provided at the top of the stabilizing leg.

[0008] A better technical solution: the transverse bracket is I-shaped, and the bolt is a long bolt, which passes through the top of the adjustment bracket and the bottom and top of the transverse bracket in sequence, and the end of the long bolt is locked by a nut.

[0009] A preferred technical solution: The lifting assembly includes a mobile frame and a hand chain hoist. The mobile frame is hingedly connected to the hand chain hoist, which is equipped with a chain and a hook, with a hook at one end of the chain. A hand chain wheel is installed in the hand chain hoist, which adjusts the position of the chain and the hook at the end of the chain. The hook can be equipped with a stopper to close the hook during lifting and hanging, improving lifting safety.

[0010] A preferred technical solution: a guide rail is provided on the horizontal bracket.

[0011] A preferred technical solution: rollers are rotatably mounted on the movable frame, and the rollers move along the guide rails.

[0012] A better technical solution: the chain is made of manganese steel.

[0013] The beneficial effects of the utility model are as follows:

[0014] The gantry crane in the utility model has a simple structure, is more mobile, and can flexibly change the lifting position; the stability of the crane during lifting is enhanced by stabilizing the legs, and the lifting height is adjusted by adjusting the brackets; the overall structure is more detachable, and is convenient for transportation and transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the hoisting assembly in the present utility model;

[0017] Figure 3 It is a structural diagram of the connection between the transverse bracket and the top end of the adjustment bracket;

[0018] Figure 4 It is a structural diagram of the mobile component in the utility model.

[0019] Figure numerals: 1. Horizontal bracket; 11. Long bolt; 2. Longitudinal bracket; 21. Adjustment bracket; 22. Support bracket; 221. Diagonal rod; 23. Adjustment hole; 3. Lifting assembly; 31. Moving frame; 32. Hand hoist; 321. Chain; 322. Hook; 4. Moving assembly; 41. Moving wheel; 42. Stabilizing support foot; 421. Turning handle; 422. Rubber block; 43. Wheel frame. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0022] like Figures 1 to 4 As shown, this embodiment provides a new gantry crane, including a transverse bracket 1, a longitudinal bracket 2, a lifting assembly 3, and a moving assembly 4. The transverse bracket 1 is locked and connected to the longitudinal bracket 2 by bolts. The longitudinal bracket 2 includes an adjusting bracket 21 and a supporting bracket 22. The adjusting bracket 21 is nested in the supporting bracket 22, and the adjusting bracket 21 and the supporting bracket 22 are penetrated by a plurality of adjusting holes 23. The adjusting bracket 21 is limitedly connected to the supporting bracket 22 by bolts. The moving assembly 4 is installed on the supporting bracket 22, and the lifting assembly 3 is slidably installed on the transverse bracket 1. The supporting bracket 22 is a T-shaped structure, and an inclined rod 221 is welded on the supporting bracket 22. The moving assembly 4 includes a plurality of moving wheels 41 and a stabilizing leg 42. The moving wheel 41 is installed on the bottom end of the supporting bracket 22 through a wheel frame 43, and the stabilizing leg 42 is located on the outside of the moving wheel 41, and the stabilizing leg 42 is threadedly connected to the supporting bracket 22.

[0023] Furthermore, a rubber block 422 is provided at the bottom end of the stabilizing leg 42 .

[0024] Furthermore, a rotating handle 421 is provided at the top of the stabilizing leg 42 .

[0025] Furthermore, the transverse bracket 1 is I-shaped, and the bolt is a long bolt 11, which passes through the top of the adjustment bracket 21 and the bottom and top of the transverse bracket 1 in sequence, and the end of the long bolt 11 is locked by a nut.

[0026] Furthermore, the hoisting assembly 3 includes a mobile frame 31 and a hand chain hoist 32. The hand chain hoist 32 is hingedly connected to the mobile frame 31. The hand chain hoist 32 is provided with a chain 321 and a hook 322. The hook 322 is provided at one end of the chain 321. A hand chain wheel is provided within the hand chain hoist 32, which cooperates with the hand chain wheel to adjust the position of the chain 321 and the hook 322 at the end of the chain 321. The hook 322 can be equipped with an anti-slip blocker to close the hook 322 during lifting and hanging, thereby improving lifting safety.

[0027] Furthermore, a guide rail is provided on the transverse bracket 1 .

[0028] Furthermore, rollers are rotatably mounted on the movable frame 31 , and the rollers move along the guide rails.

[0029] Furthermore, the cable chain 321 is made of manganese steel.

[0030] When the new gantry crane in the present invention is used, the crane is moved to the corresponding lifting position. The moving wheel 41 can be a universal wheel. After moving to the corresponding lifting position, the rotating handle 421 is twisted to make the bottom end of the stabilizing leg 42 contact the ground; the stabilizing leg 42 can be used to lift the moving wheel 41 off the ground, effectively avoiding safety problems caused by the displacement of the moving wheel 41. The T-shaped support bracket 22 and the diagonal rod 221 form a symmetrical triangular structure, which is conducive to improving the overall stability of the crane. The adjustment bracket 21 can be extended into or out of the support bracket 22, and the height of the horizontal bracket 1 can be indirectly adjusted by inserting the bolt into the adjustment hole 23 of the corresponding height. When hoisting, hook the hook 322 to the corresponding load, pull the chain 321 on the hand hoist 32 to lift the load.

[0031] The principle of a commercially available chain hoist 32 is generally as follows: by pulling the cable chain 321, the hand chain wheel begins to rotate, causing the friction plate ratchet and brake seat (compressed into one piece) to rotate together. The long tooth axis then turns the plate gear, the short tooth axis, and the splined hole gear. This in turn, the lifting sprocket attached to the splined hole gear drives the lifting chain, thereby smoothly lifting the load. The ratchet friction plate one-way brake automatically brakes under load. The pawl engages the ratchet wheel under the action of a spring, ensuring safe operation of the brake.

Claims

1. A new type of gantry crane, characterized in that: The cam is mounted on a pivot part of the support frame, and the cam is mounted on a hinged portion for holding the cam in position relative to the support frame. The cam is mounted on a hinged portion for holding the cam in position relative to the support frame. The cam is mounted on a hinged portion for holding the cam in position relative to the support frame. The cam is mounted on a hinged portion for holding the cam in position relative to the support frame.

2. The new gantry crane according to claim 1 is characterized in that: A rubber block is provided at the bottom end of the stabilizing foot.

3. The new gantry crane according to claim 1 is characterized in that: A rotating handle is provided on the top of the stabilizing foot.

4. The new gantry crane according to claim 1 is characterized in that: The transverse bracket is I-shaped, and the bolt is a long bolt. The long bolt passes through the top of the adjustment bracket and the bottom and top of the transverse bracket in sequence, and the end of the long bolt is locked by a nut.

5. The new gantry crane according to claim 1 is characterized in that: The hoisting assembly includes a movable frame and a hand chain hoist. The movable frame is hinged with the hand chain hoist. A chain and a hook are arranged on the hand chain hoist. A hook is arranged at one end of the chain.

6. The new gantry crane according to claim 5 is characterized in that: The transverse bracket is provided with a guide rail.

7. The new gantry crane according to claim 6 is characterized in that: A roller is rotatably mounted on the movable frame, and the roller moves along the guide rail.

8. The new gantry crane according to claim 5 is characterized in that: The cable chain is made of manganese steel.

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