Integrated four-wheel steering and rear-wheel steering type multi-connecting-rod unloading loader
By designing an integrated four-wheel steering and rear-wheel steering multi-link unloading loader, the problems of body deviation and center of gravity instability caused by articulated steering of existing loaders are solved, and the stable lifting of the bucket and the flexibility and safety of the body are improved.
Patent Information
- Application Number
- CN202421419404.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-20
AI Technical Summary
Due to articulated steering, the bucket steering rotates with the steering wheel, causing the body to shift and the center of gravity to be unstable, which poses safety hazards.
An integrated four-wheel steering and rear-wheel steering multi-link unloading loader is designed. The bucket is lifted by setting up a second oil cylinder to drive the movement of the upper arm, and the cab is set in the middle of the upper arm, and the rear wheel is equipped with an engine. An integrated base is used to achieve a smaller turning radius, more flexible and more stable center of gravity.
The stable lifting and lowering of the bucket is achieved, the body length is shortened, the stability during loading is improved, the center of gravity is solved due to articulated steering is solved, and the flexibility and safety of the car body is enhanced.
Smart Images
Figure CN222666901U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of loaders, in particular to an integrated four-wheel steering and rear-wheel steering type multi-link unloading loader. Background Art
[0002] A loader is a type of earthwork construction machinery widely used in construction projects such as highways, railways, buildings, hydropower, ports, and mines. It is mainly used for shoveling loose materials such as soil, sand, lime, and coal, and can also perform light shoveling operations on ore, hard soil, etc. In road construction, especially in high-grade highway construction, loaders are used for operations such as filling and excavation of roadbed projects, and the collection and loading of asphalt mixtures and cement concrete material fields. In addition, it can also carry out operations such as pushing soil, leveling the ground, and towing other machinery. Because loaders have the advantages of fast operating speed, high efficiency, good maneuverability, and easy operation, they have become one of the main machines for earthwork construction in engineering construction.
[0003] Existing loaders are generally articulated and steered. The bucket and cab of such loaders are respectively installed on two mutually hinged bases. When turning, the bucket of the loader will turn in the direction of the steering wheel. Since the cargo carried by the loader is heavy, this will cause the entire body to shift, the center of gravity is unstable, and there are safety hazards. In view of this, we propose an integrated four-wheel steering and rear-wheel steering multi-link unloading loader. Utility Model Content
[0004] In order to make up for the above shortcomings, the utility model provides an integrated four-wheel steering and rear-wheel steering type multi-link unloading loader.
[0005] The technical solution of the utility model is:
[0006] An integrated four-wheel steering and rear-wheel steering multi-link unloading loader comprises a base, a group of front wheels and a group of rear wheels are fixedly arranged at the bottom of the base, an engine is fixedly arranged on the rear wheels, a fixed seat is fixedly arranged above the base, a cab is arranged at the front end of the fixed seat, first cylinders are symmetrically arranged on both sides of the cab, a second cylinder is arranged below the first cylinder, and a bucket is arranged on one side of the cab.
[0007] Preferably, a fixing plate is fixedly provided on the front side of the fixing seat, one end of the second oil cylinder is fixedly connected to the lower end of the fixing plate, a boom is provided at the other end of the second oil cylinder, a first connecting member is provided between the second oil cylinder and the boom, one end of the first connecting member is fixedly connected to the hydraulic rod of the second oil cylinder, and the other end of the first connecting member is rotatably connected to the boom.
[0008] Preferably, a connecting plate is rotatably provided at one end of the boom away from the second oil cylinder, and the bucket is provided at one end of the connecting plate away from the boom, and the bucket is fixedly connected to the connecting plate.
[0009] Preferably, a connecting rod is provided on one side of the first oil cylinder, and a group of connecting plates are provided between the connecting rod and the first oil cylinder, one end of the connecting plate is rotatably connected to the tail of the first oil cylinder, and the other end of the connecting plate is rotatably connected to the end of the connecting rod.
[0010] Preferably, a second connecting member is fixedly provided on the other side of the first oil cylinder, an inclined plate is rotatably provided on the end of the second connecting member, and an end of the inclined plate away from the first oil cylinder is rotatably connected to the upper end of the connecting plate.
[0011] Preferably, a bent plate is provided below the second connecting member, one end of the bent plate is rotatably connected to the upper arm, and the other end of the bent plate is rotatably connected to the second connecting member.
[0012] Preferably, the cab is fixedly connected to the base, and the cab is located at the front end of the base and in the middle of the first oil cylinder and the second oil cylinder.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1 The utility model sets a second oil cylinder. When the second oil cylinder is started, it can drive the big arm connected thereto to move, thereby realizing the lifting and lowering of the bucket. Since the rear half of the big arm cooperates with the connecting plate, the fulcrum of the big arm is backward when it moves, which increases the stability of the bucket lifting and lowering;
[0015] 2 The utility model arranges the cab in the middle of the big arm, so that the vehicle body length is shorter, so that the center of gravity of the transfer machine is moved backward when loading, and the body length is shortened, thereby increasing the stability when lifting;
[0016] 3 The utility model sets an engine through the rear wheel, uses the engine to drive the rear wheel to rotate, and sets an integrated base, so that the turning radius of the vehicle body is smaller and more flexible, the center of gravity is more stable, and solves the problem of unstable center of gravity caused by articulated steering in existing loaders. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a schematic diagram of the top plan structure of the utility model;
[0019] Figure 3 It is a partial structural schematic diagram of the utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the big arm of the utility model;
[0021] Figure 5 It is a schematic diagram of the partial structure of the rear wheel of the utility model.
[0022] In the figure:
[0023] 1. Base; 11. Front wheel; 12. Rear wheel; 121. Mounting block; 122. Mounting frame; 123. Third oil cylinder; 124. Steering rod; 125. Axle; 13. Engine; 14. Fixed seat; 15. Fixed plate; 2. Cab; 3. First oil cylinder; 31. Connecting rod; 32. Connecting plate; 33. Second connecting piece; 34. Inclined plate; 35. Bent plate; 4. Second oil cylinder; 41. Upper arm; 42. First connecting piece; 5. Bucket; 51. Connecting plate. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0026] See also Figure 1-5 The utility model describes the above technical solution in detail through the following embodiments:
[0027] An integrated four-wheel steering and rear-wheel steering multi-link unloading loader comprises a base 1, a group of front wheels 11 and a group of rear wheels 12 are fixedly arranged at the bottom of the base 1, an engine 13 is fixedly arranged on the rear wheels 12, a fixed seat 14 is fixedly arranged above the base 1, a cab 2 is arranged at the front end of the fixed seat 14, first cylinders 3 are symmetrically arranged on both sides of the cab 2, a second cylinder 4 is arranged below the first cylinder 3, a bucket 5 is arranged on one side of the cab 2, by arranging the second cylinder 4, when the second cylinder 4 is started, a large arm 41 connected thereto can be driven to move, thereby realizing the lifting and lowering of the bucket 5, because the rear half of the large arm 41 cooperates with the connecting plate 32, the fulcrum of the large arm 41 is moved backward, thereby increasing the stability of the lifting and lowering of the bucket 5.
[0028] It should be noted that the cab 2 is fixedly mounted on the front end of the base 1 .
[0029] It should be noted that an axle 125 is installed between the two symmetrically arranged rear wheels 12, and mounting blocks 121 are provided at both ends of the axle 125. A group of mounting frames 122 are rotatably provided on the mounting blocks 121. A third oil cylinder 123 is hingedly installed on the axle 125, and a steering rod 124 is provided on one side of the third oil cylinder 123. The third oil cylinder 123 has two piston rods, and the two piston rods are rotatably connected to the two mounting frames 122 respectively. The two ends of the steering rod 124 are rotatably connected to the two mounting frames 122 respectively. The steering of the rear wheels 12 can be driven by the cooperation of the third oil cylinder 123 and the steering rod 124.
[0030] It should be noted that the mounting block 121 is rotatably disposed at the end of the axle 125, and the mounting block 121 and the rear wheel 12 are fixedly connected. The axle 125 can provide stable support for the rear wheel 12 when it turns.
[0031] In addition, a steering mechanism consisting of an axle 125, a mounting block 121, a mounting frame 122, a third oil cylinder 123, and a steering rod 124 can also be installed between the two front wheels 11. Its principle is consistent with the driving of the rear wheels 12, thereby being able to drive the steering effect of the front wheels 11 and thereby achieving a four-wheel steering effect.
[0032] Furthermore, a fixing plate 15 is fixedly provided on the front side of the fixing seat 14, one end of the second oil cylinder 4 is rotatably connected to the lower end of the fixing plate 15, a boom 41 is provided at the other end of the second oil cylinder 4, a first connecting member 42 is provided between the second oil cylinder 4 and the boom 41, one end of the first connecting member 42 is fixedly connected to the hydraulic rod of the second oil cylinder 4, and the other end of the first connecting member 42 is rotatably connected to the boom 41. Through the setting of the second oil cylinder 4, when the second oil cylinder 4 is started, the movement of the boom 41 can be realized through the cooperation of the first connecting member 42.
[0033] It is worth noting that the second oil cylinder 4 is located at the bottom of the boom 41, and the connecting plate 32 is symmetrically arranged at the rear end of the boom 41. The middle part of the connecting plate 32 is rotatably connected to the rear end of the boom 41, so that the fulcrum of the boom 41 is at the rear when it is raised or lowered.
[0034] Furthermore, a connecting plate 51 is rotatably provided at one end of the boom 41 away from the second cylinder 4, and a bucket 5 is provided at one end of the connecting plate 51 away from the boom 41. The bucket 5 and the connecting plate 51 are fixedly connected. By providing the connecting plate 51 between the boom 41 and the bucket 5, the bucket 5 can be driven to move when the boom 41 moves.
[0035] It should be noted that one end of the large arm 41 away from the connecting plate 51 is rotatably disposed on the upper end of the fixing plate 15 .
[0036] Furthermore, a connecting rod 31 is provided on one side of the first oil cylinder 3, and a group of connecting plates 32 are provided between the connecting rod 31 and the first oil cylinder 3. One end of the connecting plate 32 is rotatably connected to the tail of the first oil cylinder 3, and the other end of the connecting plate 32 is rotatably connected to the end of the connecting rod 31. By providing the connecting rod 31 and the connecting plate 32, the first oil cylinder 3 can be connected to the fixed plate 15 when driving the inclined plate 34 to move, thereby ensuring the stability of the first oil cylinder 3.
[0037] It should be noted that one end of the connecting rod 31 away from the first oil cylinder 3 is rotatably connected to the fixing plate 15 .
[0038] Furthermore, a second connecting member 33 is fixedly provided on the other side of the first oil cylinder 3, and an inclined plate 34 is rotatably provided on the end of the second connecting member 33. The end of the inclined plate 34 away from the first oil cylinder 3 is rotatably connected to the upper end of the connecting plate 51. When the first oil cylinder 3 is started, the inclined plate 34 can be pushed to swing. The swing of the inclined plate 34 will drive the connecting plate 51 to swing, thereby driving the bucket 5 fixed on the connecting plate 51 to swing. This swing is centered on the connection point between the connecting plate 51 and the boom 41, so the bucket 5 can perform earth-moving operations. At the same time, the reverse swing can make the bucket 5 tend to be horizontal and thus realize mobile loading. Since the inclined plate 34 and the bucket 5 are connected by the connecting plate 51, and the connecting rod 31 cooperates with the connecting plate 32, the bucket 5 can be freely flipped.
[0039] Furthermore, a bent plate 35 is provided below the second connecting member 33, one end of the bent plate 35 is rotatably connected to the upper arm 41, and the other end of the bent plate 35 is rotatably connected to the second connecting member 33. By providing the bent plate 35, when the first oil cylinder 3 drives the inclined plate 34 to move, it is connected to the upper arm 41 through the bent plate 35, thereby increasing the stability of the movement of the inclined plate 34.
[0040] The connecting rod 31, the connecting plate 32, the second connecting member 33, the inclined plate 34, and the bent plate 35 together constitute a multi-link connection structure, which is used to connect the fixed seat 14 on the vehicle body and the bucket 5;
[0041] Furthermore, the cab 2 is fixedly connected to the base 1. The cab 2 is located at the front end of the base 1 and in the middle of the first cylinder 3 and the second cylinder 4. By arranging the cab 2 in the middle of the two large arms 41, the vehicle body length is shortened, so that the center of gravity of the transfer machine is moved backward during loading, and the body length is shortened, thereby increasing the stability during lifting.
[0042] Working principle:
[0043] When in use, the driver first enters the cab 2, then starts the engine 13, and uses the engine 13 to drive the rear wheel 12 to rotate to drive the entire loader. Finally, according to the working requirements, the third cylinder 123 is started so that the mounting frame 122 connected to the rear wheel 12 can be pushed under the drive of the third cylinder 123, so that the steering direction can be adjusted, thereby realizing the steering adjustment of the rear wheel 12, and then the first cylinder 3 is started so that the inclined plate 34 is swung. The swing of the inclined plate 34 will drive the connecting plate 51 to swing, thereby driving the bucket 5 fixed on the connecting plate 51 to swing. This swing is centered on the connection point between the connecting plate 51 and the large arm 41, so the bucket 5 can be realized. The bucket 5 can be freely turned over, and then the second oil cylinder 4 is started to drive the large arm 41 connected thereto to move, thereby realizing the lifting and lowering of the bucket 5, and then the operation is carried out. Moreover, by arranging the cab 2 between the two large arms 41, the vehicle body length is shortened, and an integrated base is arranged at the same time, so that the center of gravity of the transfer machine is moved backward during loading, while the body length is shortened, thereby increasing the stability during lifting, and making the body turning radius smaller and more flexible, and the center of gravity more stable, thereby solving the problem of unstable center of gravity caused by articulated steering in existing loaders.
[0044] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. An integrated four-wheel steering and rear-wheel steering multi-link dump loader, comprising a base (1), characterized in that: A group of front wheels (11) and a group of rear wheels (12) are fixedly arranged at the bottom of the base (1), an engine (13) is fixedly arranged on the rear wheels (12), a fixed seat (14) is fixedly arranged above the base (1), a cab (2) is arranged at the front end of the fixed seat (14), first cylinders (3) are symmetrically arranged on both sides of the cab (2), a second cylinder (4) is arranged below the first cylinder (3), and a bucket (5) is arranged on one side of the cab (2).
2. An integrated four-wheel steering and rear-wheel steering multi-link dump loader as claimed in claim 1, characterized in that: A fixing plate (15) is fixedly provided on the front side of the fixing seat (14); one end of the second oil cylinder (4) is rotatably connected to the lower end of the fixing plate (15); a large arm (41) is provided at the other end of the second oil cylinder (4); a first connecting member (42) is provided between the second oil cylinder (4) and the large arm (41); one end of the first connecting member (42) is fixedly connected to the hydraulic rod of the second oil cylinder (4); and the other end of the first connecting member (42) is rotatably connected to the large arm (41).
3. An integrated four-wheel steering and rear-wheel steering multi-link dump loader as claimed in claim 2, characterized in that: A connecting plate (51) is rotatably provided at one end of the boom (41) away from the second oil cylinder (4), and the bucket (5) is provided at one end of the connecting plate (51) away from the boom (41), and the bucket (5) is fixedly connected to the connecting plate (51).
4. The integrated four-wheel steering and rear-wheel steering multi-link dump loader according to claim 1, characterized in that: A connecting rod (31) is provided on one side of the first oil cylinder (3), and a group of connecting plates (32) are provided between the connecting rod (31) and the first oil cylinder (3), one end of the connecting plate (32) is rotatably connected to the tail of the first oil cylinder (3), and the other end of the connecting plate (32) is rotatably connected to the end of the connecting rod (31).
5. The integrated four-wheel steering and rear-wheel steering multi-link dump loader according to claim 3, characterized in that: A second connecting member (33) is fixedly provided on the other side of the first oil cylinder (3), and a slanted plate (34) is rotatably provided on the end of the second connecting member (33), and one end of the slanted plate (34) away from the first oil cylinder (3) is rotatably connected to the upper end of the connecting plate (51).
6. An integrated four-wheel steering and rear-wheel steering multi-link dump loader as claimed in claim 5, characterized in that: A bent plate (35) is provided below the second connecting member (33), one end of the bent plate (35) is rotatably connected to the large arm (41), and the other end of the bent plate (35) is rotatably connected to the second connecting member (33).
7. The integrated four-wheel steering and rear-wheel steering multi-link dump loader according to claim 1, characterized in that: The cab (2) is fixedly connected to the base (1); the cab (2) is located at the front end of the base (1) and in the middle between the first oil cylinder (3) and the second oil cylinder (4).