Automatic roof lifting mechanism for paver

Abstract

The application discloses a top automatic lifting mechanism for a paver in the technical field of paver transport machinery, and aims to solve the problem that the height of the paver is too high during transportation, leading to difficult transportation in the prior art, which comprises a middle connecting frame and a telescopic oil cylinder, the telescopic oil cylinder is arranged in the middle connecting frame and connected with the outer circumferential side of a top stand column, the end of the top stand column is rotationally connected with the middle connecting frame, a double-hand holding shaft is arranged above the middle connecting frame, and a zipper assembly is arranged at the end of the double-hand holding shaft; the zipper assembly can control the freedom of the double-hand holding shaft through opening and closing, so that the double-hand holding shaft is in a fastening state or a loosening state; when the double-hand holding shaft is in the loosening state, the telescopic oil cylinder can drive the top stand column to rotate around the end thereof until the top stand column reaches a horizontal position. The application can reduce the height of the paver during transportation, facilitate transportation operation, and greatly improve the user experience.

Description

Technical Field

[0001] This invention relates to an automatic lifting mechanism for the canopy of a paver, belonging to the technical field of paver transportation machinery. Background Technology

[0002] Construction machinery such as pavers are difficult to transport due to their large size. In actual transportation, the overall height often exceeds the standard. Therefore, most pavers are equipped with a canopy lifting and adjustment mechanism to reduce the overall height and facilitate transportation.

[0003] Currently, the raising and lowering of the paver canopy is all manually mechanically adjusted. Methods such as manually operating hydraulic cylinders with iron rods to drive the canopy columns to move and thus adjust the canopy height are cumbersome and inconvenient. At the same time, these operations require the driver to make large physical movements, which can easily lead to safety accidents. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic lifting mechanism for the roof of a paver, which can lower the height of the paver during transportation, making transportation operations more convenient.

[0005] To achieve the above objectives, the present invention is implemented using the following technical solution: an automatic lifting mechanism for a paver canopy, wherein canopy columns are provided at the four corners below the canopy, including a central connecting frame and a telescopic cylinder, the telescopic cylinder is inserted inside the central connecting frame and connected to the outer periphery of the canopy column, the end of the canopy column is rotatably connected to the central connecting frame, and a double-handed shaft is inserted above it, the ends of the double-handed shafts are provided with a pull lock assembly;

[0006] The zipper assembly can control the degree of freedom of the two-handed shaft by opening and closing, so that the two-handed shaft is in a tight state or a loose state; when the two-handed shaft is in a loose state, the telescopic cylinder can drive the ceiling column to rotate around its end, completing the switching between the vertical and horizontal positions of the ceiling column.

[0007] Optionally, the end of the ceiling column is provided with a pin hole, and the intermediate connecting frame is provided with a pin shaft inside. The pin shaft passes through the pin hole to realize the rotatable connection between the end of the ceiling column and the intermediate connecting frame.

[0008] Optionally, the ceiling column has a through hole above the pin hole, and the two-handed shaft is inserted into the through hole and welded to the ceiling column.

[0009] Optionally, the intermediate connecting frame is provided with a first groove and a second groove, and the first groove and the second groove are symmetrically arranged;

[0010] When the ceiling column is in a vertical position, the ends of the two-handed shaft are inserted into the first groove; when the ceiling column is in a horizontal position, the ends of the two-handed shaft are inserted into the second groove.

[0011] Optionally, the number of zipper assemblies is two sets, respectively located in the first groove and the second groove.

[0012] Optionally, the zipper assembly includes an electrically controlled pull rod and two pressure-sensitive zippers, which are symmetrically arranged on both sides of the intermediate connecting frame. The ends of the two-handed shaft pass through the grooves and are then inserted into the pressure-sensitive zippers.

[0013] The pressure-sensitive zipper is equipped with a connecting rod below it, which is connected to an electrically controlled pull rod, which is connected to an external electrical control device.

[0014] Optionally, the outer perimeter of the ceiling column is symmetrically provided with connecting plates, the connecting plates are provided with through holes, the output end of the telescopic cylinder is provided with a connector, the connector is inserted into the through hole and welded to the connecting plate.

[0015] Optionally, it also includes a housing, which is located on both sides of the intermediate connecting frame and connected to the paver cab below. The housing is used to protect and cover the lifting mechanism.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0017] This invention changes the traditional principle of ceiling lifting, replacing the manual hydraulic cylinder adjustment of ceiling lifting with electronic control to achieve automatic ceiling lifting, which is convenient to operate and reduces the probability of safety accidents for workers.

[0018] This invention replaces the traditional plug-in pin method with a two-hand gripping shaft and a locking mechanism, allowing for direct electronic control of the operation. This makes it more convenient to use and provides a new automatic canopy lifting mechanism design for pavers and other construction machinery, greatly improving the user experience. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the installation structure of an automatic lifting mechanism for a paver canopy in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of an automatic lifting mechanism for a paver canopy in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of an automatic lifting mechanism for a paver canopy in one embodiment of the present invention;

[0022] Figure 4This is an exploded structural diagram of an automatic lifting mechanism for a paver canopy in one embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the operation process of the automatic lifting mechanism for the paver canopy in one embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the paver canopy lifting process in one embodiment of the present invention;

[0025] In the diagram: 1. Canopy, 2. Canopy column, 21. Pin hole, 22. Through hole, 23. Connecting plate, 3. Intermediate connecting frame, 31. First groove, 32. Second groove, 4. Telescopic cylinder, 5. Two-handed shaft, 6. Pull lock assembly, 61. Pressure-sensitive pull lock, 611. Connecting rod, 62. Electrically controlled pull rod, 7. Housing. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Example 1:

[0030] like Figure 1 As shown, a canopy 1 is provided above the paver cab, and canopy columns 2 are provided at the four corners below the canopy 1. The automatic canopy lifting mechanism for a paver provided in this embodiment of the invention has two components, which are respectively installed at the ends of two canopy columns 2 on one side.

[0031] As Figures 2-4 shown, the automatic lifting mechanism for the overhead canopy of a paver includes an intermediate connecting frame 3 and a telescopic oil cylinder 4. The overall top view cross-section of the intermediate connecting frame 3 is in an inverted U shape, and the overall side view cross-section is in an L shape. A pin shaft is provided inside it. A pin hole 21 is provided at the end of the overhead canopy column 2, and the pin shaft passes through the pin hole 21 of the overhead canopy column 2, thus realizing the rotational connection between the overhead canopy column 2 and the intermediate connecting frame 3.

[0032] On one side of the outer periphery of the end of the overhead canopy column 2, connecting plates 23 are symmetrically provided. Through holes are provided on the connecting plates 23, and the shapes of the through holes are adapted to the shape of the end connecting member of the output shaft of the telescopic oil cylinder 4. The output shaft of the telescopic oil cylinder 4 passes through from below to the inside of the intermediate connecting frame 3 and is connected to the connecting plate 23 of the overhead canopy column 2. Therefore, the telescopic oil cylinder 4 can drive the overhead canopy column 2 to rotate around the pin shaft from a vertical state to a horizontal state.

[0033] Above the pin hole 21 of the overhead canopy column 2, a through hole 22 is further provided. A double-handed holding shaft 5 is passed through and welded in the through hole 22, and the two ends of the double-handed holding shaft 5 just fit into the grooves inside the intermediate connecting frame 3. A first groove 31 and a second groove 32 are provided on the intermediate connecting frame 3. When the double-handed holding shaft 5 when the overhead canopy column 2 is in a vertical state just passes through the first groove 31, and when the double-handed holding shaft 5 when the overhead canopy column 2 is in a horizontal state just passes through the second groove 32.

[0034] It further includes a zip component 6. There are two groups of zip components 6, which are respectively provided at the first groove 31 and the second groove 32 of the intermediate connecting frame 3. The zip component 6 includes an electric control pull rod 62 and two pressure-sensing zip fasteners 61. The pressure-sensing zip fasteners 61 are symmetrically provided on both sides of the intermediate connecting frame 3, so that the end of the double-handed holding shaft 5 can be clamped into the pressure-sensing zip fastener 61 after passing through the groove.

[0035] Below each of the pressure-sensing zip fasteners 61, a connecting rod 611 is provided. The connecting rod 611 is connected to the electric control pull rod 62. The electric control pull rod 62 is overall in a T shape. The end of its vertical rod is connected to an external electric control device, and both ends of the cross bar are respectively connected to the connecting rods 611 on both sides.

[0036] By controlling the electric control pull rod 62 by an external electric control device to provide a pulling force and pulling the connecting rod 611 in a direction away from the pressure-sensing zip fastener 61, the opening and closing of the pressure-sensing zip fastener 61 are controlled, and the degree of freedom of the double-handed holding shaft 5 is changed. When the pressure-sensing zip fastener 61 is closed, the double-handed holding shaft 5 is fastened, so the overhead canopy column 2 cannot rotate around the pin shaft; when the pressure-sensing zip fastener 61 is open, the double-handed holding shaft 5 is loose, and at this time the overhead canopy column 2 can rotate around the pin shaft.

[0037] Embodiment 2:

[0038] Based on Embodiment 1, this embodiment also includes a housing 7, which is located on both sides of the intermediate connecting frame 3 and connected to the paver cab below. The housing 7 can protect and cover the overall lifting mechanism.

[0039] Combination Figures 5-6 The workflow of this invention is as follows: Figure 5 A represents the initial state, where both sets of zipper assemblies 6 are in the closed state, and the shaft 5 is held tightly with both hands, thus fixing the ceiling column 2 in a vertical position.

[0040] like Figure 5 As shown in B, the two sets of zipper assemblies 6 are opened. Specifically, the power switch of the external electrical control device is driven to provide a downward pulling force to the electric control lever 62 at the first groove 31 and a rightward pulling force to the electric control lever 62 at the second groove 32, thereby pulling the pressure-sensing zipper 61 and opening the latch. At this time, the hands holding the shaft 5 are no longer restricted and are in a loose state.

[0041] Then, as Figure 5 As shown in C~5D, start the telescopic cylinder 4. The telescopic cylinder 4 pulls the ceiling column 2 to rotate around the pin shaft, slowly rotating from the vertical state to the horizontal state.

[0042] like Figure 5 As shown in E, when the ceiling column 2 is rotated to a horizontal position, the two-handed shaft 5 falls into the second groove 32, and the ends are also locked in the zipper assembly 6 at the second groove 32. Finally, the two sets of zipper assemblies 6 are closed. Specifically, the power switch is turned off so that the electric control rod 62 no longer provides pulling force. Thus, the zipper assembly 6 at the second groove 32 can fasten the two-handed shaft 5 and fix the ceiling column 2 in a horizontal position.

[0043] like Figure 6 As shown, after the entire process is completed, the height of the canopy 1 is lowered, facilitating subsequent paver transport operations. When the transport work is finished and the canopy supports need to be switched to working mode, simply press... Figure 5 Simply reverse the steps shown.

[0044] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An automatic lifting mechanism for a paver canopy, wherein canopy columns are provided at the four corners below the canopy, characterized in that: It includes an intermediate connecting frame and a telescopic hydraulic cylinder. The telescopic hydraulic cylinder is installed inside the intermediate connecting frame and connected to the outer periphery of the ceiling column. The end of the ceiling column is rotatably connected to the intermediate connecting frame, and a double-handed shaft is installed above it. The ends of the double-handed shaft are equipped with a pull lock assembly. The zipper assembly can control the degree of freedom of the two-handed shaft by opening and closing, so that the two-handed shaft is in a tight state or a loose state; when the two-handed shaft is in a loose state, the telescopic cylinder can drive the ceiling column to rotate around its end, completing the switching between the vertical and horizontal positions of the ceiling column. The intermediate connecting frame is provided with a first groove and a second groove, which are symmetrically arranged; the number of the zipper assembly is 2 sets, respectively located at the first groove and the second groove. The zipper assembly includes an electrically controlled pull rod and two pressure-sensitive zippers. The pressure-sensitive zippers are symmetrically arranged on both sides of the middle connecting frame. The ends of the two-handed shaft pass through the grooves and are inserted into the pressure-sensitive zippers. A connecting rod is provided below the pressure-sensitive zippers. The connecting rod is connected to the electrically controlled pull rod, and the electrically controlled pull rod is connected to an external electrical control device. When the ceiling column is in a vertical position, the ends of the two-handed shaft are inserted into the first groove; when the ceiling column is in a horizontal position, the ends of the two-handed shaft are inserted into the second groove.

2. The automatic lifting mechanism for the canopy of a paver according to claim 1, characterized in that: The end of the ceiling column is provided with a pin hole, and the middle connecting frame is provided with a pin shaft inside. The pin shaft passes through the pin hole to realize the rotatable connection between the end of the ceiling column and the middle connecting frame.

3. The automatic lifting mechanism for the canopy of a paver according to claim 1, characterized in that: The ceiling column has a through hole above the pin hole, and the two-handed shaft is inserted into the through hole and welded to the ceiling column.

4. The automatic lifting mechanism for the canopy of a paver according to claim 1, characterized in that: The outer perimeter of the ceiling column is symmetrically provided with connecting plates, and the connecting plates are provided with through holes. The output end of the telescopic cylinder is provided with a connector, which passes through the through hole and is welded to the connecting plate.

5. An automatic lifting mechanism for the canopy of a paver according to any one of claims 1 to 4, characterized in that: It also includes a housing, which is located on both sides of the intermediate connecting frame and connected to the paver cab below. The housing is used to protect and cover the lifting mechanism.

Images