Tricycle with loading, unloading and self-loading functions

Abstract

The utility model discloses a tricycle with assembling, disassembling and self-assembling functions. The utility model relates to a four-bar linkage tricycle which comprises a tricycle frame body, and further comprises a bucket, a lifting arm assembly, a fixed seat, a four-bar linkage rotating mechanism and a rotating arm supporting body, the fixed seat is fixedly arranged on one side of the front portion of the tricycle frame body, and the rotating arm supporting body is rotatably connected with the fixed seat through a hinge; one end of the lifting arm assembly is rotatably connected with the rotating arm supporting body through a bucket supporting arm shaft, the bucket is rotatably connected with the other end of the lifting arm assembly through a bucket rotating shaft, and the four-connecting-rod rotating mechanism is arranged on the side face of the fixing base and comprises a hydraulic oil cylinder III and a four-connecting-rod mechanism. One end of the hydraulic oil cylinder III is connected with the tricycle frame body, the other end of the hydraulic oil cylinder III is connected with the four-connecting-rod mechanism, and the terminal end of the four-connecting-rod mechanism is connected with the rotating arm supporting body. The hydraulic oil cylinder III can drive the rotating arm supporting body to rotate through the four-connecting-rod mechanism, and therefore the bucket and the lifting arm assembly are driven to rotate.

Description

Technical Field

[0001] The utility model relates to a tricycle, in particular to a tricycle with loading and unloading and self-loading functions, belonging to the technical field of agricultural machinery. Background Art

[0002] A tricycle is a widely used light vehicle, which is often used to carry sand, gravel, grain, etc. Existing tricycles basically do not have the function of self-loading and unloading and loading and unloading for other vehicles, and usually need to be loaded and unloaded manually, which is time-consuming and labor-intensive. Utility Model Content

[0003] In view of the above defects existing in the prior art, the utility model provides a tricycle with simple structure, low cost and the functions of loading and unloading and self-loading.

[0004] The utility model is realized through the following technical scheme: a tricycle with loading and unloading and self-loading functions, including a tricycle frame, characterized in that: it also includes a bucket, a lifting arm assembly, a fixed seat, a four-link rotating mechanism, and a rotating arm supporting body, the fixed seat is fixedly arranged on one side of the front part of the tricycle frame, the rotating arm supporting body is rotatably connected to the fixed seat through a hinge, the lifting arm assembly includes a lifting arm, a hydraulic cylinder I, a hydraulic cylinder II, a bucket support arm fixing plate, and a bucket support arm, one end of the lifting arm is rotatably connected to the rotating arm supporting body through a bucket support arm shaft, the bucket is rotatably connected to the other end of the lifting arm through the bucket rotating shaft, the hydraulic cylinder I and the hydraulic cylinder II are both hinged to the rotating arm supporting body at one end, and the other end is hinged to the bucket support arm fixing plate, one end of the bucket support arm is hinged to the bucket, and the other end of the bucket support arm is hinged to the bucket support arm fixing plate, The four-bar rotating mechanism is arranged on the side of the fixed seat. The four-bar rotating mechanism includes a hydraulic cylinder III and a four-bar mechanism. The four-bar mechanism includes a connecting rod I, a connecting rod II, a connecting rod III, a connecting rod IV, a connecting rod fixing seat I, and a connecting rod fixing seat II. The connecting rods II, III, and IV are all in the shape of a crank arm. The connecting rod fixing seat I is fixed on the side of the fixing seat, and the connecting rod fixing seat II is fixed on the rotating arm support body. One end of each of the connecting rods I and III is movably connected to the connecting rod fixing seat I. One end of the connecting rod II is movably connected to the connecting rod I and the connecting rod III through the connecting rod shaft I and the connecting rod shaft II respectively. The other end of the connecting rod II is movably connected to the connecting rod fixing seat II. One end of the connecting rod IV is movably connected to the end of the connecting rod III away from the connecting rod fixing seat I through the connecting rod shaft III. The other end of the connecting rod IV is movably connected to the connecting rod fixing seat II. One end of the hydraulic cylinder III is connected to the three-wheeled vehicle frame, and the other end of the hydraulic cylinder III is connected to the four-bar mechanism.

[0005] In the utility model, the bucket and lifting arm assembly can be lifted and unloaded under the action of hydraulic cylinders I and II. Under the action of hydraulic cylinder III, the rotating arm support body can be driven to rotate through the four-bar linkage mechanism, thereby driving the bucket and lifting arm assembly to rotate, so that the bucket can be rotated in the forward or backward direction, which is used to realize self-loading, or to rotate the bucket to a certain angle for loading and unloading other vehicles.

[0006] Furthermore, it also includes a limit plate, which is fixed on the rotating arm support body or the fixed seat.

[0007] Furthermore, the maximum rotation angle of the four-bar linkage is 180°.

[0008] The beneficial effects of the utility model are as follows: the utility model has a simple structure, has loading and unloading and self-loading functions, can load and unload other vehicles, and can also realize self-loading, is easy to use, can save manpower, is flexible in operation, can greatly improve loading and unloading efficiency, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model;

[0010] Figure 2 This is a schematic diagram of the structure of the bucket of the utility model after rotating 180°;

[0011] Figure 3 This is the position state diagram of the four-link rotating mechanism when the bucket is facing backward;

[0012] Figure 4 This is the position state diagram of the four-link rotating mechanism when the bucket is facing forward;

[0013] In the figure, 1, bucket, 2, four-bar linkage joint, 3, lifting arm, 4, hydraulic cylinder oil pipe, 5, hydraulic cylinder Ⅰ, 6, hydraulic cylinder Ⅱ, 7, bucket arm fixing plate, 8, bucket arm, 9, rotating arm support body, 10, rotating shaft, 11, bucket arm shaft, 12, bucket rotating shaft, 13, bucket arm seat, 14, hydraulic cylinder Ⅱ support, 15, hydraulic cylinder Ⅲ, 16, connecting rod shaft Ⅰ, 17, connecting rod Ⅰ, 18, connecting rod Ⅱ, 19, connecting rod Ⅲ, 20, connecting rod Ⅳ, 21, connecting rod fixing seat Ⅰ, 22, connecting rod fixing seat Ⅱ, 23, limiting plate, 24, fixing seat, 25, rotating shaft hinge plate, 26, connecting rod shaft Ⅱ, 27, connecting rod shaft Ⅲ, 28, three-wheeled vehicle frame. DETAILED DESCRIPTION

[0014] The present invention is further described below by way of non-limiting embodiments and in conjunction with the accompanying drawings:

[0015] As shown in the accompanying drawings, a tricycle with loading and unloading and self-loading functions includes a tricycle frame 28, which is a prior art, and also includes a bucket 1, a lifting arm assembly, a fixed seat 24, a four-link rotating mechanism, and a rotating arm support body 9. The fixed seat 24 is fixedly arranged on one side of the front part of the tricycle frame 28, and the rotating arm support body 9 is rotatably connected to the fixed seat 24 through a rotating shaft 10 with a rotating shaft hinge plate 25. The lifting arm assembly includes a lifting arm 3, a hydraulic cylinder I5, a hydraulic cylinder II6, a bucket arm fixing plate 7, and a bucket arm 8. One end of the lifting arm 3 is rotatably connected to the rotating arm support body 9 through the bucket arm shaft 11, and the bucket 1 is rotatably connected to the other end of the lifting arm 3 through the bucket rotating shaft 12. The hydraulic cylinder I5 and the hydraulic cylinder II6 are both hinged to the rotating arm support body 9 at one end and hinged to the bucket arm fixing plate 7 at the other end. One end of the bucket arm 8 is hinged to the bucket 1, and the other end of the bucket arm 8 is hinged to the bucket arm fixing plate 7. The four-link rotating mechanism is arranged on the side of the fixed seat 24, and the four-link rotating mechanism includes a hydraulic cylinder III15 and a four-link mechanism. The four-bar linkage includes a connecting rod Ⅰ17, a connecting rod Ⅱ18, a connecting rod Ⅲ19, a connecting rod Ⅳ20, a connecting rod fixing seat Ⅰ21, and a connecting rod fixing seat Ⅱ22, wherein the connecting rod Ⅱ18, the connecting rod Ⅲ19, and the connecting rod Ⅳ20 are all in the shape of a crank arm, the connecting rod fixing seat Ⅰ21 is fixed to the side of the fixing seat 24, the connecting rod fixing seat Ⅱ22 is fixed on the rotating arm support body 9, one end of the connecting rod Ⅰ17 and the connecting rod Ⅲ19 are movably connected to the connecting rod fixing seat Ⅰ21, one end of the connecting rod Ⅱ18 is movably connected to the connecting rod Ⅰ17 and the connecting rod Ⅲ19 through the connecting rod shaft Ⅰ16 and the connecting rod shaft Ⅱ26 respectively, the other end of the connecting rod Ⅱ18 is movably connected to the connecting rod fixing seat Ⅱ22, one end of the connecting rod Ⅳ20 is movably connected to the end of the connecting rod Ⅲ19 away from the connecting rod fixing seat Ⅰ21 through the connecting rod shaft Ⅲ27, and the other end of the connecting rod Ⅳ20 is movably connected to the connecting rod fixing seat Ⅱ22. In order to limit the rotation of the rotating arm support body 9, a limit plate 23 is also included, and the limit plate 23 is fixed on the rotating arm support body 9 or fixed on the fixing seat 24. One end of the hydraulic cylinder III15 is fixed on the tricycle frame 28, and the other end of the hydraulic cylinder III15 is connected to the four-bar linkage.

[0016] For ease of operation, the center of gravity of the loading and unloading part of the utility model should be centered when it is installed on one side of the tricycle frame.

[0017] The utility model has the functions of self-loading and loading and unloading for other vehicles.

[0018] The working principle of the utility model is:

[0019] Self-loading and unloading process of bucket:

[0020] When bucket 1 shovels the material, start the tricycle to move forward, and under the action of hydraulic oil, hydraulic cylinder Ⅰ5 and hydraulic cylinder Ⅱ6 cooperate with each other to make the bucket and the ground form a certain appropriate angle, so as to shovel the material into the bucket. As the tricycle slowly moves forward, the material fills the bucket. At this time, the piston rod of hydraulic cylinder Ⅰ5 shortens, the piston rod of hydraulic cylinder Ⅱ6 extends, and the bucket support arm 8 pulls the bucket so that the upper end of the bucket is in a horizontal state, and the material is slowly lifted. As the piston rod of hydraulic cylinder Ⅰ5 further shortens, at the same time, the piston rod of hydraulic cylinder Ⅱ6 gradually extends, the bucket is lifted to the highest point, and then under the action of the four-bar rotating mechanism, the lifting arm assembly drives the bucket to rotate 180 degrees. At this time, the bucket is directly above the bucket of the tricycle, and the upper end of the bucket is still in a horizontal state, as shown in the attached figure. Figure 2 As shown. Self-unloading of bucket materials: Under the action of hydraulic oil, the piston rod of hydraulic cylinder Ⅰ5 is extended and lengthened, and hydraulic cylinder Ⅱ6 is shortened. Under the push of bucket support arm 8, the bucket turns down around bucket rotation axis 12, and the materials are unloaded into the bucket. After unloading, the bucket and lifting arm return to the initial shoveling state, and the material loading and unloading process is completed repeatedly.

[0021] Bucket loading and unloading function: This utility model not only has self-loading and unloading function, but also can load and unload for other vehicles. Bucket loading and unloading function is simpler than self-loading and unloading. When loading and unloading for other vehicles, the four-link rotating mechanism does not need to rotate a large range, and only needs to rotate between 0-90 degrees to complete the loading and unloading task. The loading and unloading process of the bucket is the same as the operation procedure of self-loading and unloading.

[0022] Bucket and lifting arm rotation principle: Bucket and lifting arm rotation is controlled by a four-bar linkage under the action of hydraulic cylinder III15, making a 180-degree controllable rotation, so that the bucket can rotate forward or backward. Figure 3 The figure shows the position state of the four-link rotating mechanism when the bucket is facing backward. Figure 4 This is the position state diagram of the four-link rotating mechanism when the bucket is facing forward. When the bucket needs to rotate from the back to the front, the hydraulic cylinder Ⅲ15 starts to work, the cylinder piston rod extends outward to push the connecting rod Ⅰ17 and the connecting rod Ⅱ18 forward, the connecting rod Ⅱ18 pushes the connecting rod Ⅲ19 to move through the connecting rod shaft Ⅱ26, and the connecting rod Ⅲ19 pushes the connecting rod Ⅳ20 to move in conjunction through the connecting rod shaft Ⅲ27. Driven by the hydraulic cylinder, the connecting rod Ⅲ19 and the connecting rod Ⅳ20 are forced to rotate around the rotating axis 10 and change direction. When the piston rod of the hydraulic cylinder Ⅲ15 reaches a certain length, the bucket rotates from the back to the front. If the bucket needs to rotate from the front to the back, the piston rod of the hydraulic cylinder Ⅲ15 is shortened in the reverse direction. Under the traction of the cylinder, the four-link mechanism returns in the reverse direction, that is, the bucket rotates from the front position to the rear position again. This cycle is repeated to complete the task of loading and unloading materials.

[0023] The other parts of this embodiment are all prior art and will not be described in detail here.

Claims

1. A tricycle with loading and unloading and self-loading functions, comprising a tricycle frame (28), characterized in that: The invention also comprises a bucket (1), a lifting arm assembly, a fixing seat (24), a four-link rotating mechanism, and a rotating arm supporting body (9). The fixing seat (24) is fixedly arranged on one side of the front part of the tricycle frame (28). The rotating arm supporting body (9) is rotatably connected to the fixing seat (24) via a hinge. The lifting arm assembly comprises a lifting arm (3), a hydraulic cylinder I (5), a hydraulic cylinder II (6), a bucket support arm fixing plate (7), and a bucket support arm (8). One end of the lifting arm (3) is rotatably connected to the rotating arm supporting body via a bucket support arm shaft (11). (9), the bucket (1) is rotatably connected to the other end of the lifting arm (3) through the bucket rotating shaft (12), the hydraulic cylinder I (5) and the hydraulic cylinder II (6) are both hinged at one end to the rotating arm support body (9), and the other end is hinged to the bucket support arm fixing plate (7), one end of the bucket support arm (8) is hinged to the bucket (1), and the other end of the bucket support arm (8) is hinged to the bucket support arm fixing plate (7), and the four-link rotating mechanism is arranged on the side of the fixing seat (24), and the four-link rotating mechanism includes a hydraulic cylinder III (15), a four-link mechanism, and a four-link mechanism. The structure comprises a connecting rod I (17), a connecting rod II (18), a connecting rod III (19), a connecting rod IV (20), a connecting rod fixing seat I (21), and a connecting rod fixing seat II (22). The connecting rod II (18), the connecting rod III (19), and the connecting rod IV (20) are all in the shape of a crank arm. The connecting rod fixing seat I (21) is fixed to the side of the fixing seat (24), and the connecting rod fixing seat II (22) is fixed to the rotating arm support body (9). One end of the connecting rod I (17) and the connecting rod III (19) are movably connected to the connecting rod fixing seat I (21), and one end of the connecting rod II (18) is respectively connected to the connecting rod fixing seat I (21) through the connecting rod. The shaft I (16) and the connecting rod shaft II (26) are movably connected with the connecting rod I (17) and the connecting rod III (19); the other end of the connecting rod II (18) is movably connected with the connecting rod fixing seat II (22); one end of the connecting rod IV (20) is movably connected with the end of the connecting rod III (19) away from the connecting rod fixing seat I (21) through the connecting rod shaft III (27); the other end of the connecting rod IV (20) is movably connected with the connecting rod fixing seat II (22); one end of the hydraulic cylinder III (15) is connected to the tricycle frame (28); and the other end of the hydraulic cylinder III (15) is connected to the four-bar linkage.

2. The tricycle with loading and unloading and self-loading functions according to claim 1 is characterized in that: It also includes a limiting plate (23), which is fixed on the rotating arm supporting body (9) or the fixing seat (24).

3. The tricycle with loading and unloading and self-loading functions according to claim 1 or 2, characterized in that: The maximum rotation angle of the four-bar rotating mechanism is 180°.

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