Hydraulic lifting device

Abstract

The utility model discloses a hydraulic lifting device which comprises a connecting arm assembly, a hydraulic oil cylinder and a walking mechanism. The connecting arm assembly comprises a first connecting arm and a second connecting arm, one end of the first connecting arm is rotationally connected with one end of the second connecting arm through a first transmission shaft, the other end of the second connecting arm is rotationally provided with a second transmission shaft, and the second transmission shaft is in transmission connection with the walking mechanism; the hydraulic oil cylinder is hinged to the second connecting arm. The hydraulic lifting device is used for adjusting the height of the left side and the right side of the frame to keep the balance of the left side and the right side of the frame, so that the harvesting equipment meets the requirements of walking on mountainous roads and harvesting operation on mountainous regions.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveying equipment, and in particular relates to a hydraulic lifting device. Background Art

[0002] During the annual Pseudostellaria baicalensis harvesting season, a large amount of manual labor is required to collect and obtain the Pseudostellaria baicalensis produced in mountainous areas with rugged terrain. After working for a long time, people become more tired and their work efficiency is reduced. However, due to the complexity of the terrain, mechanical equipment cannot be used for harvesting.

[0003] Traditional mechanical harvesting equipment is only suitable for flat ground and cannot adjust the height left and right, making it impossible to travel on rugged terrain, making it even more difficult to operate. To address the above problems, there is an urgent need for a lifting device that can adapt to mountain travel and operation to maintain the balance of the harvesting machinery. Utility Model Content

[0004] In view of the above-mentioned shortcomings, the technical problem to be solved by the utility model is to provide a hydraulic lifting device to meet the needs of walking on mountain roads and harvesting on slopes.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] A hydraulic lifting device comprises: a connecting arm assembly, a hydraulic cylinder and a walking mechanism;

[0007] The connecting arm assembly includes a first connecting arm and a second connecting arm, one end of the first connecting arm is rotatably connected to one end of the second connecting arm through a first transmission shaft, the other end of the second connecting arm is rotatably mounted with a second transmission shaft, and the second transmission shaft is transmission-connected to the walking mechanism;

[0008] The hydraulic cylinder is hinged to the second connecting arm.

[0009] Preferably, a first lifting transmission mechanism is installed on the first connecting arm, a second lifting transmission mechanism is installed on the second connecting arm, the first transmission shaft is used to transmit and connect the first lifting transmission mechanism and the second lifting transmission mechanism, and the second lifting transmission mechanism drives the second transmission shaft.

[0010] Preferably, the first lifting transmission mechanism includes a first lifting driving sprocket and a first lifting driven sprocket connected by chain transmission, the second lifting transmission mechanism includes a second lifting driving sprocket and a second lifting driven sprocket connected by chain transmission, the first lifting driven sprocket and the second lifting driving sprocket are fixed on the first transmission shaft, and the second lifting driven sprocket is fixedly connected to the second transmission shaft.

[0011] Preferably, the first connecting arm and the second connecting arm are box structures respectively, and the first lifting transmission mechanism and the second lifting transmission mechanism are respectively located in the box.

[0012] Preferably, the traveling mechanism comprises a traveling bracket, a chain track driving wheel and a chain track supporting wheel mounted on the traveling bracket, and a chain track wound around the chain track driving wheel and the chain track supporting wheel, and the chain track driving wheel is fixedly connected to the second transmission shaft.

[0013] Preferably, an articulated seat is fixed on the second connecting arm, and the hydraulic cylinder is connected to the articulated seat.

[0014] After adopting the above technical solution, the beneficial effects of the utility model are:

[0015] The hydraulic lifting device of the present application is used to adjust the height of the left and right sides of the frame to maintain the balance of the left and right sides of the frame, so that the harvesting equipment can meet the requirements of traveling on mountain roads and mountain harvesting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the hydraulic lifting device of the utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of an embodiment of the hydraulic lifting device of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a harvesting device using an embodiment of the hydraulic lifting device of the utility model;

[0019] In the figure: 1. frame; 2. hydraulic cylinder; 3. walking mechanism; 31. rail driving wheel; 32. chain rail supporting wheel; 33. chain rail; 34. tensioning device; 35. walking bracket; 401. first lifting active sprocket; 402. second lifting active sprocket; 403. second lifting driven sprocket; 404. first lifting driven sprocket; 405. second transmission shaft; 406. speed-changing active sprocket; 407. speed-changing driven sprocket; 410. first transmission shaft; 5. connecting arm assembly; 51. first connecting arm; 52. second connecting arm; 53. articulated seat. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] like Figure 1 and Figure 2As shown together, a hydraulic lifting device comprises: a connecting arm assembly 5, a hydraulic cylinder 2 and a walking mechanism 3;

[0022] The connecting arm assembly 5 includes a first connecting arm 51 and a second connecting arm 52. One end of the first connecting arm 51 is rotatably connected to one end of the second connecting arm 52 through a first transmission shaft 410. The other end of the second connecting arm 52 is rotatably mounted with a second transmission shaft 405. The second transmission shaft 405 is transmission-connected to the walking mechanism.

[0023] The hydraulic cylinder 2 is hinged to the second connecting arm 52 .

[0024] like Figure 3 As shown, the left and right sides of the frame 1 are respectively provided with a connecting arm assembly 5, a hydraulic cylinder 2 and a traveling mechanism 3, the upper end of the first connecting arm 51 is fixedly connected to the frame 1, and the hydraulic cylinder 2 is hinged to the frame 1. When the hydraulic cylinder 2 is extended and retracted, the hydraulic cylinder 2 drives the second connecting arm 52 to rotate around the first transmission shaft 410, thereby changing the height of the frame 1 on that side, and the left and right sides of the frame 1 are of the same height, the harvesting equipment has good balance, and meets the travel requirements of mountain roads or mountain harvesting operations.

[0025] A first lifting transmission mechanism is installed on the first connecting arm 51 , and a second lifting transmission mechanism is installed on the second connecting arm 52 . The first transmission shaft 410 is used for transmission connection between the first lifting transmission mechanism and the second lifting transmission mechanism, and the second lifting transmission mechanism drives the second transmission shaft 405 .

[0026] In the illustrated embodiment, the first lifting transmission mechanism is preferably a first lifting chain transmission mechanism, and the second lifting transmission mechanism is preferably a second lifting chain transmission mechanism. The first lifting chain transmission mechanism includes a first lifting active sprocket 401 and a first lifting driven sprocket 404 connected by chain transmission, and the second lifting chain transmission mechanism includes a second lifting active sprocket 402 and a second lifting driven sprocket 403 connected by chain transmission. The first lifting driven sprocket 404 and the second lifting active sprocket 402 are fixed on the first transmission shaft 410, and the second lifting driven sprocket 403 is fixedly connected to the second transmission shaft 405. In addition to the chain transmission mechanism, the first lifting transmission mechanism and the second lifting transmission mechanism can also adopt belt transmission or gear transmission, which is not illustrated in detail here. In the illustrated embodiment, the first connecting arm 51 and the second connecting arm 52 are preferably a box structure, and the first lifting chain transmission mechanism and the second lifting chain transmission mechanism are arranged in the box to effectively protect the first lifting chain transmission mechanism and the second lifting chain transmission mechanism. In other embodiments, the first connecting arm 51 and the second connecting arm 52 can be a connecting rod or a connecting plate.

[0027] When the height of the frame 1 is adjusted, the power transmission of the first lifting chain transmission mechanism and the second lifting chain transmission mechanism will not be hindered. The lifting mechanism of the present application can not only play a lifting role, but also serve as the installation base of the first lifting chain transmission mechanism and the second lifting chain transmission mechanism. The first transmission shaft 410 not only plays a role in power transmission between the first lifting chain transmission mechanism and the second lifting chain transmission mechanism, but also serves as the hinge shaft of the first connecting arm 51 and the second connecting arm 52. The second transmission shaft 405 not only plays a role in transmitting power to the walking mechanism 3, but also serves as the rotation center of the second connecting arm 52. Therefore, the lifting mechanism and the lifting chain transmission mechanism in the present application are organically combined to form a "you have me, I have you" structure, and the two are inseparable.

[0028] The walking mechanism 3 includes a chain rail driving wheel 31, a chain rail supporting wheel 32, and a chain rail 33 wound around the chain rail driving wheel 31 and the chain rail supporting wheel 32. The chain rail driving wheel 31 is fixedly mounted on the second transmission shaft 405. When the chain rail driving wheel 31 rotates, it drives the chain rail 33 to run, thereby driving the harvesting equipment forward and backward. Among them, the chain rail driving wheel 31 and the chain rail supporting wheel 32 are rotatably mounted on the walking bracket 35. A tensioning device 34 is provided between the walking bracket 35 and one of the chain rail supporting wheels 32 for adjusting the tension of the chain rail 33. In the illustrated embodiment, two chain rail supporting wheels 32 are provided. In actual applications, the chain rail supporting wheels 32 are set as needed and are not limited to a certain value.

[0029] An articulated seat 53 is fixed on the second connecting arm 52 , and the hydraulic cylinder 2 is connected to the articulated seat 53 .

[0030] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A hydraulic lifting device, characterized in that: include: Connecting arm assembly, hydraulic cylinder and walking mechanism; The connecting arm assembly includes a first connecting arm and a second connecting arm, one end of the first connecting arm is rotatably connected to one end of the second connecting arm through a first transmission shaft, the other end of the second connecting arm is rotatably mounted with a second transmission shaft, and the second transmission shaft is transmission-connected to the walking mechanism; The hydraulic cylinder is hinged to the second connecting arm.

2. The hydraulic lifting device according to claim 1, characterized in that: The first connecting arm is provided with a first lifting transmission mechanism, the second connecting arm is provided with a second lifting transmission mechanism, the first transmission shaft is used for transmission connection between the first lifting transmission mechanism and the second lifting transmission mechanism, and the second lifting transmission mechanism drives the second transmission shaft.

3. The hydraulic lifting device according to claim 2, characterized in that: The first lifting transmission mechanism includes a first lifting driving sprocket and a first lifting driven sprocket connected by chain transmission, and the second lifting transmission mechanism includes a second lifting driving sprocket and a second lifting driven sprocket connected by chain transmission, the first lifting driven sprocket and the second lifting driving sprocket are fixed on the first transmission shaft, and the second lifting driven sprocket is fixedly connected to the second transmission shaft.

4. The hydraulic lifting device according to claim 2, characterized in that: The first connecting arm and the second connecting arm are box structures respectively, and the first lifting transmission mechanism and the second lifting transmission mechanism are respectively located in the box.

5. The hydraulic lifting device according to claim 1, characterized in that: The walking mechanism includes a walking bracket, a chain rail driving wheel and a chain rail supporting wheel installed on the walking bracket, and a chain rail wound around the chain rail driving wheel and the chain rail supporting wheel. The chain rail driving wheel is fixedly connected to the second transmission shaft.

6. The hydraulic lifting device according to claim 1, characterized in that: An articulated seat is fixed on the second connecting arm, and the hydraulic cylinder is connected to the articulated seat.

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