A crane vehicle

Abstract

The utility model discloses a hoisting vehicle, comprising: a vehicle frame; a main beam mechanism, which includes an upper main beam, a rotating shaft assembly and a lower main beam from top to bottom, wherein the lower main beam is fixed on the vehicle frame, and the two ends of the rotating shaft assembly are respectively sleeved with the upper main beam and the lower main beam, and the upper main beam can rotate relative to the rotating shaft assembly; a lifting mechanism, which is installed on the upper main beam and is used to lift heavy objects. Compared with the prior art, the vehicle frame of the hoisting vehicle of the utility model is provided with a main beam mechanism and a lifting mechanism, and the lifting of heavy objects can be completed by the lifting mechanism installed on the upper main beam of the main beam mechanism, and the upper main beam can rotate relative to the sleeved rotating shaft assembly, so that the lifting direction can be rotated without moving the vehicle frame, and the operation is convenient. It can be seen that when installing platform doors, the hoisting vehicle of the utility model can help complete the installation of heavy objects, which is safe and labor-saving, and can improve the efficiency of on-site installation operations. At the same time, the lifting direction is easy to change, which is more conducive to the installation of platform doors.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting, in particular to a hoisting vehicle. Background Art

[0002] As people continue to pay more attention to the safety issues in the rail transit industry, the platform door equipment system, which can play a protective role, is also developing continuously. According to the structure, the subway platform door system can be divided into two categories: full-height doors and half-height doors. For the half-height platform door system, the components are usually installed on-site. This installation method is only suitable for situations where there is relatively sufficient installation time. In some cases, for example, when installing platform doors on the original operating line, the installation time is usually only two to three hours in the early morning. In order to improve the on-site installation efficiency, at present, the various components to be installed are assembled into several large components in the factory and adjusted to a usable state. After arriving at the site, the installation team is responsible for completing the overall installation. However, although this installation method can greatly improve the on-site installation efficiency, it also has the problem that the components are too heavy and cannot be assembled by manpower alone, and the risk factor of assembly is also greatly increased.

[0003] In view of this, the utility model provides a lifting vehicle which can help complete the installation of large parts with high efficiency and safety to solve the above-mentioned defects. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a lifting vehicle which can help complete the installation of large parts with high efficiency and safety.

[0005] In order to solve the above technical problems, the utility model provides a lifting vehicle, comprising:

[0006] Frame;

[0007] The main beam mechanism comprises, from top to bottom, an upper main beam, a rotating shaft assembly and a lower main beam, wherein the lower main beam is fixed to the vehicle frame, and the two ends of the rotating shaft assembly are respectively sleeved with the upper main beam and the lower main beam, and the upper main beam can rotate relative to the rotating shaft assembly;

[0008] The lifting mechanism is installed on the upper main beam and is used for lifting heavy objects.

[0009] Its further technical solution is: the rotating shaft assembly includes a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are respectively sleeved on the lower end of the upper main beam and the upper end of the lower main beam, the first rotating shaft is connected to the second rotating shaft, and the first rotating shaft can rotate relative to the second rotating shaft.

[0010] Its further technical solution is: the rotating shaft assembly also includes a limiting pad, a connecting shaft is formed in the middle of the second rotating shaft, the first rotating shaft is correspondingly provided with a groove that cooperates with the first connecting shaft, the limiting pad is sleeved on the connecting shaft and is located between the first rotating shaft and the second rotating shaft.

[0011] Its further technical solution is: the rotating shaft assembly also includes a rotation limiting member, and the rotation limiting member includes at least one limiting pin and at least one crescent-shaped socket opened on the limiting pad, and each of the limiting pins passes through the first rotating shaft and is located in a socket.

[0012] A further technical solution is as follows: the main beam mechanism also includes a swing arm connected to the upper main beam and used for rotating the lifting direction.

[0013] Its further technical solution is: the lifting mechanism includes a cantilever, a hydraulic oil rod and a hydraulic pump, wherein one end of the cantilever can be rotatably connected to the top of the upper main beam, and the other end is provided with a lifting hole for the lifting rope to pass through, one end of the hydraulic oil rod is connected to the middle part of the cantilever, and the other end is connected to the upper main beam, and the hydraulic pump is connected to the hydraulic oil rod to make the hydraulic oil rod retractable.

[0014] Its further technical solution is: the lifting mechanism also includes a limiting tension support, the limiting tension support includes a first pull rod and a second pull rod hinged to the first pull rod, the first pull rod and the second pull rod are also respectively hinged to the cantilever and the upper main beam to limit the lifting height of the cantilever.

[0015] A further technical solution is as follows: the hoisting vehicle further comprises a counterweight mechanism, the lower main beam is located on one side of the frame, the counterweight mechanism is located on the other side of the frame, and the counterweight mechanism comprises a plurality of counterweight blocks.

[0016] Its further technical solution is: multiple counterweight blocks are stacked on the frame, a clamping column is provided on the lower surface of each counterweight block, and a clamping groove is provided on the upper surface of the counterweight block, and adjacent counterweight blocks are connected by the cooperation of the clamping column and the clamping groove.

[0017] A further technical solution is as follows: a handrail is arranged on one side of the frame, at least one screw hole is arranged on the frame, each screw hole is threadedly connected to a foot support, and universal wheels are arranged at the four corners of the bottom of the frame.

[0018] The beneficial technical effect of the utility model is as follows: compared with the prior art, the frame of the lifting vehicle of the utility model is provided with a main beam mechanism and a lifting mechanism, and the lifting of heavy objects can be completed by means of the lifting mechanism installed on the upper main beam of the main beam mechanism, and the upper main beam can be rotated relative to the sleeved rotating shaft assembly, so the lifting direction can be rotated without moving the frame, and the operation is convenient. It can be seen that when adding platform doors, the lifting vehicle of the utility model can help complete the installation of heavy objects, which is safe and labor-saving, and can improve the efficiency of on-site installation operations. At the same time, the lifting direction is easy to change, which is more conducive to the installation of platform doors. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model crane;

[0020] Figure 2 yes Figure 1 The schematic diagram of the partial disassembly of the crane shown in the figure after the hydraulic pump and the swing arm are removed;

[0021] Figure 3 yes Figure 2 An enlarged schematic diagram of part A of the crane shown;

[0022] Figure 4 It is a cross-sectional schematic diagram of a rotating shaft assembly in a hoisting vehicle of the utility model. DETAILED DESCRIPTION

[0023] In order to more fully understand the technical content of the present invention, the technical solution of the present invention is further introduced and illustrated below in conjunction with schematic diagrams, but is not limited thereto.

[0024] Reference Figures 1 to 4 , Figures 1 to 4 A specific embodiment of the hoisting vehicle 1 of the utility model is shown. The hoisting vehicle 1 of the utility model can be applied to the technical field of platform door installation. In the embodiment shown in the accompanying drawings, the hoisting vehicle 1 includes a frame 11, a main beam mechanism 12 located on the frame 11, and a lifting mechanism 13 installed on the main beam mechanism 12, wherein the main beam mechanism 12 includes an upper main beam 123, a rotating shaft assembly 122 and a lower main beam 121 from top to bottom, and the lower main beam 121 is fixed to the frame 11, and the two ends of the rotating shaft assembly 122 are respectively connected to the upper main beam 123 and the lower main beam 121, and the upper main beam 123 can rotate relative to the rotating shaft assembly 122; the lifting mechanism 13 is installed on the top of the upper main beam 123 for lifting heavy objects. Preferably, in this embodiment, the main beam mechanism 12 also includes a swing rod 124 connected to the upper main beam 123 for rotating the hoisting direction, such as Figure 1As shown, one end of the swing rod 124 is connected to the upper main beam 123, and the other end is suspended. The installer can push the suspended end of the swing rod 124 to rotate the upper main beam 123 relative to the shaft assembly 122. Based on the above design, the lifting of heavy objects can be completed by the lifting mechanism 13 installed on the upper main beam 123 of the main beam mechanism 12, which is safe and labor-saving, and can improve the efficiency of on-site installation operations. The upper main beam 123 can rotate relative to the sleeved shaft assembly 122, so the lifting direction can be rotated without moving the frame 11, which is easy to operate and more conducive to the installation of the platform door.

[0025] In some embodiments, the rotating shaft assembly 122 includes a first rotating shaft 1221, a second rotating shaft 1222 and a limiting pad 1223, the first rotating shaft 1221 and the second rotating shaft 1222 are respectively sleeved on the lower end of the upper main beam 123 and the upper end of the lower main beam 121, a connecting shaft 1224 is formed in the middle of the second rotating shaft 1222, the first rotating shaft 1221 is correspondingly provided with a groove 1225 that cooperates with the first connecting shaft 1224, the connection between the first rotating shaft 1221 and the second rotating shaft 1222 is achieved through the cooperation between the connecting shaft 1224 and the groove 1225, and the first rotating shaft 1221 can rotate relative to the second rotating shaft 1222, and the limiting pad 1223 is sleeved on the connecting shaft 1224 and is located between the first rotating shaft 1221 and the second rotating shaft 1222, and a tapered roller bearing 1226 is sleeved on the connecting shaft 1224. Based on the above design, when the first rotating shaft 1221 rotates relative to the second rotating shaft 1222 , the upper main beam 123 can be driven to rotate.

[0026] Furthermore, if Figure 3 and Figure 4 As shown, the rotating shaft assembly 122 also includes a rotation limiting member 125, and the rotation limiting member 125 includes at least one limiting pin 1251 and at least one crescent-shaped insertion hole 1252 opened on the limiting pad 1223, and each of the limiting pins 1251 passes through the first rotating shaft 1221 and is located in a insertion hole 1252. Based on the above design, the rotation angle of the upper main beam 123 can be limited by cooperating with the crescent-shaped insertion hole 1252 and the limiting pin 1251. Preferably, it can be limited within 45° to avoid the risk of excessive rotation range caused by external force during hoisting.

[0027] Continue to refer to Figure 1 and Figure 2In some embodiments, the lifting mechanism 13 includes a cantilever 131, a hydraulic oil rod 132, a hydraulic pump and a limit brace 14, wherein one end of the cantilever 131 is rotatably connected to the top of the upper main beam 123, and the other end is provided with a lifting hole 1311 for the lifting rope to pass through, one end of the hydraulic oil rod 132 is connected to the middle of the cantilever 131, and the other end is connected to the upper main beam 123, the hydraulic pump is connected to the hydraulic oil rod 132, so that the hydraulic oil rod 132 can be extended and retracted, and the limit brace 14 includes a first pull rod 141 and a second pull rod 142 hinged to the first pull rod 141, and the first pull rod 141 and the second pull rod 142 are also hinged to the cantilever 131 and the upper main beam 123, respectively, to limit the lifting height of the cantilever 131. Based on the above design, heavy objects can be lifted by a lifting rope.

[0028] Specifically, in this embodiment, a bracket 15 is further provided in the middle of the frame 11, and the hydraulic pump includes an oil tank 1332, an oil pipe 1333, and a pressure rod 1331 for pumping out the hydraulic oil in the oil tank 1332. The oil tank 1332 is fixed on the bracket 15 and connected to the hydraulic oil rod 132 through the oil pipe 1333. The oil tank 1332 is also provided with a pressure relief valve. When in use, the pressure rod 1331 can be pressed by hand to pump the hydraulic oil in the oil tank 1332 into the hydraulic oil rod 132, and the hydraulic oil pushes the hydraulic oil rod 132 to extend, so that the cantilever 131 is lifted upward to play a lifting role. When the cantilever 131 needs to be lowered, it is only necessary to open the manual hydraulic pump pressure relief valve to allow the hydraulic oil to flow back into the oil tank 1332, and the hydraulic oil rod 132 will automatically retract.

[0029] Preferably, in this embodiment, the hoisting vehicle 1 also includes a counterweight mechanism 16, the lower main beam 121 is located on one side of the frame 11, and the counterweight mechanism 16 is located on the other side of the frame 11, the counterweight mechanism 16 includes a plurality of counterweight blocks 161, and the plurality of counterweight blocks 161 are stacked on the frame 11, each of the counterweight blocks 161 is provided with a clamping column 163 on the lower surface, and a clamping groove 162 is provided on the upper surface of the counterweight block 161, and the adjacent two counterweight blocks 161 are connected by the cooperation of the clamping column 163 and the clamping groove 162, that is, the clamping column 163 of the upper counterweight block 161 is clamped into the clamping groove 162 of the lower counterweight block 161 to achieve positioning, and the risk of offset of the counterweight block 161 can be avoided during use. It can be understood that the specifications, weight, etc. of each counterweight block 161 may be different. Based on the above design, the counterweight can be adjusted by one person by stacking multiple small counterweight blocks 161. When using the crane 1, the number of counterweight blocks 161 can be increased or decreased according to the lifting weight requirements. When lifting lighter materials, the counterweight blocks 161 can be reduced, thereby reducing the force applied when pushing and transferring the crane 1, making it convenient to push the car forward quickly. After the crane 1 is in place, the counterweight blocks 161 can be added to position and fix the crane 1, thereby fixing the crane 1.

[0030] In the embodiment shown in the drawings, a handrail 17 is provided on one side of the frame 11, and two screw holes are provided on the frame 11, each of which is threadedly connected to a foot support 18, and universal wheels 19 are provided at the four corners of the bottom of the frame 11, and the lower main beam 121 is also connected to the frame 11 through a pull rod 111, so that a multi-angle support is formed between the lower main beam 121 and the upper surface of the frame 11 and the pull rod 111. Based on the above design, when operating the hoisting vehicle 1 to hoist objects, in order to increase the overall stability, the foot support 18 can be supported on the ground by twisting the foot support 18 to increase friction and prevent the hoisting vehicle 1 from malfunctioning during operation.

[0031] To sum up, the lifting vehicle of the utility model can lift heavy objects through the lifting rope. As long as the lifted heavy objects can be connected through the lifting rope, the lifting vehicle can be used for lifting, which increases the versatility of the lifting vehicle of the utility model. When lifting heavy objects, the lifting direction can also be changed through the upper main beam and the rotating shaft assembly. In this process, the rotating limit piece can also limit the angle of change of the lifting direction. There is no need to move the frame, and the operation is convenient. The cantilever lifting height can also be limited by the limiting pull support, and the safety performance is higher. The lifting vehicle of the utility model is applied to the field of platform door installation. While quickly improving the working efficiency of the installation team, it can also maximize the safety during operation.

[0032] The above-mentioned preferred implementation modes should be regarded as examples of the implementation modes of the utility model scheme. Any technical deductions, replacements, improvements, etc. that are identical or similar to the utility model scheme or made based on it should be regarded as within the scope of protection of this patent.

Claims

1. A crane vehicle, characterized in that: Included are: Frame; The main beam mechanism comprises, from top to bottom, an upper main beam, a rotating shaft assembly and a lower main beam, wherein the lower main beam is fixed to the vehicle frame, and the two ends of the rotating shaft assembly are respectively sleeved with the upper main beam and the lower main beam, and the upper main beam can rotate relative to the rotating shaft assembly; The lifting mechanism is installed on the upper main beam and is used for lifting heavy objects.

2. The crane vehicle according to claim 1, characterized in that: The rotating shaft assembly includes a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are respectively sleeved on the lower end of the upper main beam and the upper end of the lower main beam, the first rotating shaft is connected to the second rotating shaft, and the first rotating shaft can rotate relative to the second rotating shaft.

3. The crane truck according to claim 2, characterized in that: The rotating shaft assembly also includes a limiting pad, a connecting shaft is formed in the middle of the second rotating shaft, the first rotating shaft is correspondingly provided with a groove that cooperates with the connecting shaft, the limiting pad is sleeved on the connecting shaft and is located between the first rotating shaft and the second rotating shaft.

4. The crane truck according to claim 3, characterized in that: The rotating shaft assembly also includes a rotation limiting member, which includes at least one limiting pin and at least one crescent-shaped insertion hole opened on the limiting pad. Each of the limiting pins passes through the first rotating shaft and is located in a insertion hole.

5. The crane truck according to claim 1, characterized in that: The main beam mechanism also includes a swing rod connected to the upper main beam and used for rotating the hoisting direction.

6. The crane truck according to claim 1, characterized in that: The lifting mechanism includes a cantilever, a hydraulic oil rod and a hydraulic pump, wherein one end of the cantilever is rotatably connected to the top of the upper main beam, and the other end is provided with a lifting hole for the lifting rope to pass through, one end of the hydraulic oil rod is connected to the middle part of the cantilever, and the other end is connected to the upper main beam, and the hydraulic pump is connected to the hydraulic oil rod to enable the hydraulic oil rod to be extended and retracted.

7. The crane truck according to claim 6, characterized in that: The lifting mechanism also includes a limiting tension support, which includes a first tension rod and a second tension rod hinged to the first tension rod. The first tension rod and the second tension rod are also hinged to the cantilever and the upper main beam respectively to limit the lifting height of the cantilever.

8. The crane truck according to claim 1, characterized in that: The hoisting vehicle also includes a counterweight mechanism. The lower main beam is located on one side of the frame, and the counterweight mechanism is located on the other side of the frame. The counterweight mechanism includes a plurality of counterweight blocks.

9. The crane vehicle according to claim 8, characterized in that: A plurality of counterweight blocks are stacked on the frame, a clamping column is arranged on the lower surface of each counterweight block, and a clamping slot is arranged on the upper surface of the counterweight block, and two adjacent counterweight blocks are connected by the cooperation of the clamping column and the clamping slot.

10. The crane truck according to claim 1, characterized in that: A handrail is arranged on one side of the frame, at least one screw hole is arranged on the frame, each screw hole is threadedly connected with a foot support, and universal wheels are arranged at four corners of the bottom of the frame respectively.

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