Hydraulic lifting device of dump trailer

Abstract

The utility model relates to a hydraulic lifting device of a dump trailer, which comprises a frame and a carriage hinged at the top of the frame, a driving mechanism for driving the carriage to rotate around a hinge point is arranged at the top of the frame, the driving mechanism comprises two groups of driving components, and each driving component comprises a hydraulic cylinder. The first rotating shaft and the second rotating shaft are installed at the two ends of the hydraulic cylinder respectively, the first rotating shaft is installed at the bottom of the frame through a first fixing mechanism, the second rotating shaft is installed at the bottom of the compartment through a second fixing mechanism, and the first fixing mechanism comprises a through hole formed in the frame; the hydraulic cylinder can be disassembled and assembled in the using process, when the hydraulic cylinder needs to be replaced and overhauled, a worker can conveniently carry out replacement and overhauling work, and the using convenience of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of trailers, and particularly relates to a hydraulic lifting device for a self-unloading trailer. Background Technique

[0002] A trailer refers to a vehicle that is towed by an automobile and has no self-powered driving device. It is a combination of an automobile (truck or tractor, forklift) and one or more trailers. The truck and the tractor are the driving sections of the vehicle train, called the main vehicle, and the trailing moving section towed by the main vehicle is called the trailer. It is an important vehicle type in road transportation. Using a vehicle train for transportation is an important and effective means to improve economic efficiency.

[0003] During the use of a trailer, a self-unloading mechanism will be set up for automatic unloading. Automatic unloading means self-unloading through hydraulic or mechanical lifting. A hydraulic cylinder is installed on the trailer, and the hydraulic cylinder expands and contracts for unloading. During the use of the current hydraulic lifting device, since the hydraulic cylinder is fixedly installed on the trailer, when it is necessary to repair and replace the hydraulic cylinder, it is not convenient to disassemble the hydraulic cylinder from the trailer, thus making it inconvenient for people to use. Content of the Utility Model

[0004] The purpose of the utility model is to provide a hydraulic lifting device for a self-unloading trailer with a simple structure and reasonable design to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A hydraulic lifting device for a self-unloading trailer includes a frame and a carriage hinged to the top of the frame. A driving mechanism for driving the carriage to rotate around the hinge point is arranged at the top of the frame. The driving mechanism includes two groups of driving components. Each driving component includes a hydraulic cylinder, and a first rotating shaft and a second rotating shaft respectively installed at both ends of the hydraulic cylinder. The first rotating shaft is installed at the bottom of the frame through a first fixing mechanism, and the second rotating shaft is installed at the bottom of the carriage through a second fixing mechanism.

[0007] As a further optimized solution of the utility model, the first fixing mechanism includes a through hole opened inside the frame, mounting plates installed at the bottom of the frame and located on both sides of the through hole, a first air cylinder installed on one side of one of the mounting plates, and a first fixing pipe installed at the output end of the first air cylinder. One end of the first fixing pipe passes through one of the mounting plates and extends between the two mounting plates. A first opening hole for cooperating with the first fixing pipe is opened inside the first rotating shaft.

[0008] As a further optimized solution of the present utility model, the second fixing mechanism includes an installation groove opened at the bottom of the carriage, a second air cylinder installed on one side of the carriage, and a second fixing pipe installed at one end of the second air cylinder. One end of the second fixing pipe extends into the interior of the installation groove. A second opening hole that cooperates with the second fixing pipe is opened inside the second rotating shaft. Lubricating mechanisms are provided inside both the first fixing pipe and the second fixing pipe.

[0009] As a further optimized solution of the present utility model, the lubricating mechanism includes a baffle installed inside the first fixing pipe and the second fixing pipe, a sponge strip installed inside the baffle and penetrating both sides of the baffle, and a pressing plate installed on the inner walls of the first opening hole and the second opening hole and pressing the sponge strip. A plurality of oil leakage holes are opened at the bottom ends of the first fixing pipe and the second fixing pipe.

[0010] As a further optimized solution of the present utility model, a feed hopper is installed at one end of both the first fixing pipe and the second fixing pipe.

[0011] As a further optimized solution of the present utility model, openings for facilitating the movement of the pressing plate are opened at the top ends of the first fixing pipe and the second fixing pipe, and the baffle is located on one side of the opening to block the first fixing pipe and the second fixing pipe.

[0012] The beneficial effects of the present utility model are as follows: During the use of the present utility model, the hydraulic cylinder can be disassembled and installed. When it is necessary to replace and repair the hydraulic cylinder, it is convenient for the staff to carry out the replacement and repair work, improving the convenience of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the structural schematic diagram of the first fixing mechanism of the present utility model;

[0015] Figure 3 is the Figure 1 magnified structural schematic diagram at position A in the present utility model;

[0016] Figure 4 is the Figure 1 magnified structural schematic diagram at position B in the present utility model;

[0017] Figure 5 is the Figure 2 magnified structural schematic diagram at position C in the present utility model.

[0018] In the figure: 1, vehicle frame; 2, carriage; 3, hydraulic cylinder; 4, first rotating shaft; 5, second rotating shaft; 6, through hole; 7, mounting plate; 8, first pneumatic cylinder; 9, first fixed pipe; 10, mounting groove; 11, second pneumatic cylinder; 12, second fixed pipe; 13, baffle; 14, sponge strip; 15, pressing plate; 16, oil leakage port; 17, feed hopper; 18, opening. Detailed implementation manners

[0019] The following further describes the present application in detail with reference to the accompanying drawings. It is necessary to point out here that the following specific implementation manners are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0020] Embodiment 1

[0021] As Figure 1 - Figure 5 shown, a hydraulic lifting device for a self-unloading trailer includes a vehicle frame 1 and a carriage 2 hinged to the top of the vehicle frame 1. A driving mechanism for driving the carriage 2 to rotate around the hinge point is provided at the top of the vehicle frame 1. The driving mechanism includes two groups of driving components. Each driving component includes a hydraulic cylinder 3, and a first rotating shaft 4 and a second rotating shaft 5 respectively installed at both ends of the hydraulic cylinder 3. The first rotating shaft 4 is installed at the bottom of the vehicle frame 1 through a first fixing mechanism, and the second rotating shaft 5 is installed at the bottom of the carriage 2 through a second fixing mechanism. The first fixing mechanism includes a through hole 6 opened inside the vehicle frame 1, mounting plates 7 installed at the bottom of the vehicle frame 1 and on both sides of the through hole 6, a first pneumatic cylinder 8 installed on one side of one of the mounting plates 7, and a first fixed pipe 9 installed at the output end of the first pneumatic cylinder 8. One end of the first fixed pipe 9 passes through one of the mounting plates 7 and extends between the two mounting plates 7. A first opening for cooperating with the first fixed pipe 9 is opened inside the first rotating shaft 4. The second fixing mechanism includes a mounting groove 10 opened at the bottom of the carriage 2, a second pneumatic cylinder 11 installed on one side of the carriage 2, and a second fixed pipe 12 installed at one end of the second pneumatic cylinder 11. One end of the second fixed pipe 12 extends into the mounting groove 10. A second opening for cooperating with the second fixed pipe 12 is opened inside the second rotating shaft 5. Lubrication mechanisms are provided inside both the first fixed pipe 9 and the second fixed pipe 12.

[0022] It should be noted that for the hydraulic lifting device of a self-unloading trailer, when it is necessary to disassemble the hydraulic cylinder 3 during use, the first pneumatic cylinder 8 and the second pneumatic cylinder 11 can be started. The first pneumatic cylinder 8 and the second pneumatic cylinder 11 will perform an elongation movement. At this time, driven by the first pneumatic cylinder 8, the first fixed pipe 9 moves, so that it can be withdrawn from the inside of the first opening. Driven by the second pneumatic cylinder 11, the second fixed pipe 12 will move, so that it can be withdrawn from the inside of the second opening. At this time, the hydraulic cylinder 3 can be directly disassembled. When it is necessary to install the hydraulic cylinder 3, the first rotating shaft 4 is placed between the two mounting plates 7, and the second rotating shaft 5 is placed inside the mounting groove 10. The first pneumatic cylinder 8 and the second pneumatic cylinder 11 will perform a contraction movement. At this time, it will drive the first fixed pipe 9 and the second fixed pipe 12 to move. The first fixed pipe 9 will move into the first opening, and the second fixed pipe 12 will move into the second opening, thus fixing the hydraulic cylinder 3.

[0023] Embodiment 2

[0024] As Figure 1 - Figure 5 As shown, for a hydraulic lifting device of a self-unloading trailer, the lubricating mechanism includes a baffle 13 installed inside the first fixed pipe 9 and the second fixed pipe 12, a sponge strip 14 installed inside the baffle 13 and penetrating both sides of the baffle 13, and a pressing plate 15 installed on the inner walls of the first opening and the second opening and pressing the sponge strip 14. A plurality of oil leakage holes 16 are opened at the bottom ends of the first fixed pipe 9 and the second fixed pipe 12. A feed hopper 17 is installed at one end of each of the first fixed pipe 9 and the second fixed pipe 12. The feed hopper 17 provided facilitates injecting lubricating oil into the inside of the first fixed pipe 9 and the second fixed pipe 12. Openings 18 for the pressing plate 15 to move are opened at the top ends of the first fixed pipe 9 and the second fixed pipe 12, and the baffle 13 is located on one side of the opening 18 to block the first fixed pipe 9 and the second fixed pipe 12.

[0025] It should be noted that for the hydraulic lifting device of a self-unloading trailer, when the first fixed pipe 9 is inserted into the first opening during use, the pressing plate 15 installed inside the first rotating shaft 4 will move along the opening 18. When the first fixed pipe 9 stops moving, the pressing plate 15 will be located on one side of the sponge strip 14. When the hydraulic cylinder 3 moves, the first rotating shaft 4 will move. Under the action of the first rotating shaft 4, the pressing plate 15 will press the sponge strip 14. At this time, the lubricating oil adsorbed inside the sponge strip 14 will drip into the inside of the first fixed pipe 9, and thus flow into the space between the first fixed pipe 9 and the first rotating shaft 4 through the plurality of oil leakage holes 16, so as to lubricate the rotation point. Similarly, the space between the second fixed pipe 12 and the second rotating shaft 5 can also be lubricated.

[0026] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model.

Claims

1. A hydraulic lifting device for a dump trailer, comprising a frame (1), and a carriage (2) hinged to the top of the frame (1), characterized in that: A driving mechanism for driving the carriage (2) to rotate around a hinge point is arranged on the top of the frame (1), and the driving mechanism includes two sets of driving components, the driving components include a hydraulic cylinder (3), and a first rotating shaft (4) and a second rotating shaft (5) respectively mounted at both ends of the hydraulic cylinder (3), the first rotating shaft (4) being mounted on the bottom of the frame (1) via a first fixing mechanism, and the second rotating shaft being mounted on the bottom of the carriage (2) via a second fixing mechanism.

2. A hydraulic lifting device for a dump trailer according to claim 1, characterized in that: The first fixing mechanism comprises a through hole (6) opened inside the frame (1), a mounting plate (7) mounted on the bottom of the frame (1) and located on both sides of the through hole (6), a first pneumatic cylinder (8) mounted on one side of one of the mounting plates (7), and a first fixing tube (9) mounted on the output end of the first pneumatic cylinder (8), one end of the first fixing tube (9) passes through one of the mounting plates (7) and extends between the two mounting plates (7), and a first opening is opened inside the first rotating shaft (4) for use with the first fixing tube (9).

3. A hydraulic lifting device for a dump trailer according to claim 2, characterized in that: The second fixing mechanism comprises a mounting groove (10) provided at the bottom of the carriage (2), a second pneumatic cylinder (11) installed at one side of the carriage (2), and a second fixing tube (12) installed at one end of the second pneumatic cylinder (11), one end of the second fixing tube (12) extending into the interior of the mounting groove (10), a second opening for use with the second fixing tube (12) provided inside the second rotating shaft (5), and a lubrication mechanism provided inside both the first fixing tube (9) and the second fixing tube (12).

4. A hydraulic lifting device for a dump trailer according to claim 3, characterized in that: The lubrication mechanism comprises a baffle (13) installed inside the first fixed tube (9) and the second fixed tube (12), a sponge strip (14) installed inside the baffle (13) and penetrating both sides of the baffle (13), and a pressing plate (15) installed on the inner wall of the first opening and the second opening and pressing the sponge strip (14), and the bottom ends of the first fixed tube (9) and the second fixed tube (12) are both provided with a plurality of oil leakage ports (16).

5. The hydraulic lifting device for dump trailer according to claim 4, characterized in that: A feed hopper (17) is installed at one end of each of the first fixed tube (9) and the second fixed tube (12).

6. The hydraulic lifting device for a dump trailer according to claim 4, characterized in that: The top ends of the first fixed tube (9) and the second fixed tube (12) are both provided with openings (18) for facilitating the movement of the pressing plate (15), and the baffle (13) is located on one side of the opening (18) to block the first fixed tube (9) and the second fixed tube (12).

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