Forklift with box turnover lifting appliance

Abstract

The forklift comprises a forklift body and a cab, a transverse moving frame and a pallet fork clamping frame are arranged at the front end of the forklift body, the transverse moving frame is in an L shape, a side plate of the transverse moving frame is provided with a side moving driving device and a turnover oil cylinder, and side moving rolling wheels are arranged between the side moving driving device and the forklift body; the pallet fork clamping frame is of a semi-surrounding structure, the pallet fork clamping frame comprises two parallel clamping arms, one clamping arm of the pallet fork clamping frame is movably connected with a bottom plate of the transverse moving frame, and the clamping arm is connected with a piston of the overturning oil cylinder, so that the pallet fork clamping frame can rotate by 90 degrees around the bottom plate of the transverse moving frame. According to the fork clamping frame of the forklift, the two parallel clamping arms are adopted, one clamping arm stretches into the box culvert piece and can rotate by 90 degrees around the bottom plate of the transverse moving frame, and therefore the box can be clamped and turned over, and the stability and flexibility of the box culvert piece in the hoisting process can be greatly improved.

Description

Technical Field

[0001] The invention relates to a forklift, in particular to a forklift with a letter box turning hoist. Background Art

[0002] Box culverts are widely used in the construction of large-diameter shield tunnels. Their main function is to serve as culverts for laying high and low voltage cables and some water pipes. They can also be used as emergency passages when necessary. The surface of the culvert can be used for transport vehicles such as materials and pipe segments to travel.

[0003] The main components of a box culvert are the reinforced concrete culvert body, wing walls, foundation, and expansion joints. There are two main methods for box culvert construction: cast-in-place and prefabricated assembly. The latter is generally used in shield construction, so the lifting of box culvert parts is involved. Most of the current box culvert hoists are lifting hoists. Lifting and transporting the box culvert not only causes stability problems during transportation, but also may cause the box culvert parts to slip and cause impact damage. In addition, in some tunnel construction, due to the limited vertical space in the shield machine frame, the box culvert parts can only be transported horizontally to the equipment connection bridge using a transfer trolley, and the box culvert is flipped and then spliced ​​using a box culvert hoist. Therefore, it is necessary to provide a forklift with a box flipping hoist. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a forklift with a box turning hoist, which can greatly improve the stability and flexibility of the box culvert lifting process.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is to provide a forklift with a box turning hoist, including a body and a cab, wherein a transverse frame and a fork clamp frame are arranged at the front end of the body, the transverse frame is L-shaped, a side shift drive device and a turning cylinder are arranged on the side plate of the transverse frame, and a side shift roller is arranged between the side shift drive device and the body; the fork clamp frame is a semi-enclosed structure, and the fork clamp frame includes two clamping arms arranged in parallel, one clamping arm of the fork clamp frame is movably connected to the bottom plate of the transverse frame, and the clamping arm is connected to the piston of the turning cylinder, so that the fork clamp frame can rotate 90 degrees around the bottom plate of the transverse frame.

[0006] Furthermore, support seats are provided at both ends of the side plates of the transverse frame, and the transverse frame is fixedly connected to the lateral shifting drive device through the support seats; a pin seat is provided at the end of the bottom plate of the transverse frame, and the transverse frame and a clamping arm of the fork clamp frame are movably connected through the pin seat and the pin.

[0007] Furthermore, a clamping device is provided on the fork clamp frame.

[0008] Furthermore, the transverse frame has a deadweight of 1.6 t and is welded from three pieces of 20 mm thick Q235B plates.

[0009] Furthermore, the fork clamp has a deadweight of 1.4 t and is welded from a number of 16 mm thick plates.

[0010] Furthermore, the cab is mounted on the vehicle body via a manual-automatic tilting mechanism, which allows the cab to tilt 60° to the right.

[0011] Compared with the prior art, the present invention has the following beneficial effects: the forklift with a letter box flipping hoist provided by the present invention has a fork clamp frame using two parallel clamping arms, one clamping arm extends into the box culvert and can rotate 90 degrees around the bottom plate of the transverse frame, so that the letter box can be clamped and flipped, which can greatly improve the stability and flexibility of the box culvert lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of a forklift with a letter box turning hoist according to the present invention; Figure 2 It is a schematic structural diagram of the transverse shift frame of the forklift of the present invention; Figure 3 It is a schematic structural diagram of the fork clamp frame of the forklift of the present invention.

[0013] The markings in the figure are: 1 Side shift drive 2 Transverse frame 3 Fork clamp 4 Clamping device 5 Flip cylinder 6 Side shift roller 7 Body 8 Cab 9 Culvert Parts 21 Support seat 22 Pin seat 31 Clamping arm DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a schematic structural diagram of a forklift with a letter box turning hoist according to the present invention; Figure 2 It is a schematic structural diagram of the transverse shift frame of the forklift of the present invention; Figure 3 It is a schematic structural diagram of the fork clamp frame of the forklift of the present invention.

[0016] See also Figure 1 , Figure 2 and Figure 3The forklift with a box flipping sling provided by the present invention comprises a body 7 and a cab 8, wherein a transverse frame 2 and a fork clamp frame 3 are arranged at the front end of the body 7, the transverse frame 2 is L-shaped, a side shift drive device 1 and a flip cylinder 5 are arranged on the side plate of the transverse frame 2, and a side shift roller 6 is arranged between the side shift drive device 1 and the body 7; the fork clamp frame 3 is a semi-enclosed structure, and the fork clamp frame 3 includes two parallel clamping arms 31 for extending into the box culvert member 9 and clamping it; a clamping arm 31 of the fork clamp frame 3 is movably connected to the bottom plate of the transverse frame 2, and the clamping arm 31 is connected to the piston of the flip cylinder 5, so that the fork clamp frame 3 can rotate 90 degrees around the bottom plate of the transverse frame 2, thereby driving the box to flip.

[0017] The forklift with a box turning hoist provided by the present invention has support seats 21 at both ends of the side plates of the lateral frame 2, and the lateral frame 2 is fixedly connected to the lateral driving device 1 through the support seats 21; a pin seat 22 is provided at the bottom plate end of the lateral frame 2, and the lateral frame 2 and a clamping arm 31 of the fork clamp frame 3 are movably connected through the pin seat 22 and the pin. The diameter of the pin is φ70, ensuring that it can withstand the weight of the fork clamp frame 3 and the box culvert member 9.

[0018] The forklift with the box turning hoist provided by the present invention has a clamping device 4 disposed on the fork clamp frame 3; the fork clamp frame 3 has a deadweight of 1.4 t and is welded from a plurality of 16 mm thick plates.

[0019] The forklift with the letter box turning hoist provided by the present invention has the following features: the lateral moving frame 2 has a deadweight of 1.6 t and is welded from three pieces of Q235B plates with a thickness of 20 mm.

[0020] The forklift with the letter box tipping sling provided by the present invention has a cab 8 mounted on the vehicle body 7 via a manual-automatic tipping mechanism, which can tip the cab 8 60° to the right, thereby greatly increasing the maintenance space.

[0021] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the definition of the claims.

Claims

1. A forklift with a box-turning sling, comprising a body (7) and a cab (8), characterized in that: The front end of the vehicle body (7) is provided with a transverse frame (2) and a fork clamp frame (3); the transverse frame (2) is L-shaped; a side shift drive device (1) and a tilting cylinder (5) are provided on the side plate of the transverse frame (2); a side shift roller (6) is provided between the side shift drive device (1) and the vehicle body (7); the fork clamp frame (3) is a semi-enclosed structure; the fork clamp frame (3) comprises two clamping arms (31) arranged in parallel; one clamping arm (31) of the fork clamp frame (3) is movably connected to the bottom plate of the transverse frame (2), and the clamping arm (31) is connected to the piston of the tilting cylinder (5), so that the fork clamp frame (3) can rotate 90 degrees around the bottom plate of the transverse frame (2).

2. The forklift with a letter box tilting sling according to claim 1, characterized in that: Support seats (21) are provided at both ends of the side plates of the transverse frame (2), and the transverse frame (2) is fixedly connected to the lateral shift driving device (1) via the support seats (21); a pin seat (22) is provided at the end of the bottom plate of the transverse frame (2), and the transverse frame (2) and a clamping arm (31) of the fork clamp frame (3) are movably connected via the pin seat (22) and the pin.

3. The forklift with a letter box turning sling according to claim 1, characterized in that: The fork clamp frame (3) is provided with a clamping device (4).

4. The forklift with a box turning sling according to claim 1, characterized in that: The transverse frame (2) has a deadweight of 1.6 t and is welded from three pieces of 20 mm thick Q235B plates.

5. The forklift with a letter box turning sling according to claim 1, characterized in that: The fork clamp frame (3) has a deadweight of 1.4 t and is welded from a number of 16 mm thick plates.

6. The forklift with a letter box turning sling according to claim 1, characterized in that: The cab (8) is mounted on the vehicle body (7) via a manual-automatic tilting mechanism, and the cab (8) can be tilted 60° to the right.

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