Reinforced forklift hydraulic steering axle

Abstract

The utility model relates to the technical field of forklifts, in particular to a reinforced forklift hydraulic steering axle. The first shell and the second shell are connected through a transverse plate, the first shell, the second shell and the transverse plate are of an integrally-formed structure, rotating shafts are installed at the two ends of the first shell and the two ends of the second shell, and the rotating shafts are sleeved with cleat crutches. Bosses extending outwards are arranged on the edges of the upper side and the lower side of the first shell or the second shell, connecting shafts are installed on the bosses, and the connecting shafts are connected with a frame. Due to the integrally-formed structure, the strength of the shell is improved, the bearing capacity of a forklift is improved, rollover is avoided in the turning process, and the working efficiency and the safety coefficient of the forklift are improved; left turning and right turning of the forklift are controlled through the oil cylinder, the rotating angle is small, so that the turning diameter is small, the forklift can work in a narrow space, adaptability is high, working precision is improved, operation is convenient and fast, working flexibility, working efficiency and safety of the forklift are improved, meanwhile, the space utilization rate is increased, and operation blind areas are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to a reinforced hydraulic steering axle for forklifts. Background Art

[0002] The hydraulic steering axle of a forklift is an important part of the forklift steering system. It drives the deflection of the forklift steering wheel through the reciprocating motion of the hydraulic cylinder to achieve the steering function of the forklift. The design of the hydraulic steering axle is crucial for the handling performance and stability of the forklift.

[0003] The existing forklifts have poor strength. During the turning process, the steering axle will tip over, especially when the road surface is uneven or the speed is relatively fast, which affects the overall operation efficiency. Moreover, the instability during turning will cause the goods to fall or the forklift to collide, increasing the safety risk.

[0004] In addition, the turning angle of the forklift is relatively large, so it cannot be operated in a narrow space, which further increases the operation difficulty of the operator and is prone to collision with surrounding objects. At the same time, with a relatively large turning angle, the operator's blind spot of vision is also relatively large, and due to frequent turning operations, the tire wear is serious, seriously affecting the service life of the tire. Summary of the Invention

[0005] The technical problem to be solved by the utility model is: to provide a reinforced hydraulic steering axle for forklifts in order to solve the problems existing in the prior art in the above-mentioned background art.

[0006] The technical solution adopted by the utility model to solve its technical problem is: a reinforced hydraulic steering axle for forklifts, including a housing, the housing includes a first housing and a second housing, the first housing and the second housing are connected by a cross plate, and the first housing, the second housing and the cross plate are integrally formed structures. An installation space is formed among the first housing, the second housing and the cross plate. Rotating shafts are installed at both ends of the first housing and the second housing, and knuckle arms are sleeved on the rotating shafts.

[0007] Convex platforms extending outwards are provided at the upper and lower edges of the first housing or the second housing, and connecting shafts are installed on the convex platforms and connected to the vehicle frame.

[0008] Furthermore, it further includes an oil cylinder, the oil cylinder is horizontally installed in the installation space, the knuckle arm is connected to the oil cylinder through a curved rod, a wheel hub is installed on the knuckle arm and locked by an end cover, and a tire is installed on the wheel hub.

[0009] Furthermore, a plurality of avoidance holes are opened on the bottom surface of the cross plate, and the avoidance holes are directly below the oil inlet end and the oil outlet end of the oil cylinder.

[0010] Furthermore, mounting blocks are installed on the inner sides of both ends of the first housing and the second housing. Screw holes are provided on the mounting blocks, and a mounting ring is clamped on the oil cylinder and is installed on the mounting block through bolts.

[0011] Furthermore, the space between the two bosses is hollow.

[0012] Furthermore, reinforcing blocks are provided on the side edges of both ends of the first housing and the second housing.

[0013] Furthermore, the crutch includes a crutch body. A through hole for cooperating with the rotating shaft is provided at the middle position of the crutch body; a connecting ear block is installed at the upper end of the crutch body, and the curved rod is connected to the connecting ear block through bolts;

[0014] A pawl is installed at the lower end of the crutch body, and the concave surface of the pawl faces the housing;

[0015] A mounting shaft is installed on the left side of the crutch body, and the wheel hub is installed on the mounting shaft and locked by an end cover.

[0016] Furthermore, a plurality of lug blocks are installed on the outer circumference of the wheel hub, and screw holes are provided on the lug blocks.

[0017] Furthermore, oil injection holes are provided at the end of the extending end of the oil cylinder, the end head of the first housing, the end head of the second housing, and the connecting ear block in the crutch.

[0018] Furthermore, the cross-sectional shape of the connecting shaft in the vertical direction is frustum-shaped, the cross-sectional shape of the connecting shaft in the transverse direction is elliptical, and the connecting shaft is a hollow structure.

[0019] The beneficial effects of the present utility model: The first housing, the second housing, and the cross plate of the present utility model are integrally formed structures, thereby increasing the strength of the housing, improving the load-bearing capacity of the forklift, and preventing rollover during turning, improving the operation efficiency and safety factor of the forklift; at the same time, the structure is simple, the left and right turns of the forklift are controlled by the oil cylinder, and the turning angle is small, so the turning diameter is small, and thus it can work in a narrow space, with strong adaptability, improving the operation accuracy, convenient operation, reducing the operation difficulty, improving the flexibility, work efficiency, and safety of the forklift work, and at the same time also improving the space utilization rate and reducing the operation blind area, thereby also reducing tire wear and increasing the service life. Description of the Drawings

[0020] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0021] Figure 1 is the structural schematic diagram of the present utility model;

[0022] Figure 2 is the structural schematic diagram of the present utility model in another direction;

[0023] Figure 3 It is a schematic structural view of the housing of the present utility model;

[0024] Figure 4 It is a schematic structural view of the crutch of the present utility model;

[0025] In the figure: 1. Housing, 11. First housing, 12. Second housing, 13. Cross plate, 15. Boss, 16. Connecting shaft, 17. Avoidance hole,

[0026] 2. Crutch, 21. Through hole, 22. Connecting ear block, 23. Pawl, 24. Mounting shaft,

[0027] 3. Oil cylinder, 4. Curved rod, 5. Mounting block, 6. Wheel hub, 7. End cover, 8. Oil injection hole, 9. Lug block. Specific embodiments

[0028] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0029] As Figures 1 to 3 shown, a reinforced forklift hydraulic steering axle includes a housing 1. The housing 1 includes a first housing 11 and a second housing 12. The first housing 11 and the second housing 12 are connected by a cross plate 13. The first housing 11, the second housing 12 and the cross plate 13 are integrally formed and cast. An installation space is formed among the first housing 11, the second housing 12 and the cross plate 13. Rotating shafts are installed at both ends of the first housing 11 and the second housing 12, and crutches 2 are sleeved on the rotating shafts;

[0030] Bosses 15 extending outward are provided at the upper and lower edges of the first housing 11 or the second housing 12. Connecting shafts 16 are installed on the bosses 15, and the connecting shafts 16 are connected to the vehicle frame.

[0031] In addition, the cross-sectional shape of the connecting shaft 16 in the vertical direction is frustum-shaped, and the cross-sectional shape of the connecting shaft 16 in the horizontal direction is oval. The connecting shaft 16 is a hollow structure, which can not only ensure the strength of the connecting shaft 16, but also reduce the use of materials, achieving the effect of reducing costs.

[0032] As Figures 1 to 2 shown, it further includes an oil cylinder 3. The oil cylinder 3 is horizontally installed in the installation space. The crutch 2 and the oil cylinder 3 are connected by a curved rod 4. A wheel hub 6 is installed on the crutch 2 and locked by an end cover 7. A tire is installed on the wheel hub 6.

[0033] In addition, a plurality of lug blocks 9 are installed on the outer circumference of the wheel hub 6, and screw holes are provided on the lug blocks 9.

[0034] An oil injection hole 8 is provided at the end of the extending end of the oil cylinder 3, the end of the first housing 11, the end of the second housing 12, and the connecting ear block 22 in the crank 2.

[0035] As Figure 3 shown, a plurality of avoidance holes 17 are formed in the bottom surface of the horizontal plate 13, and the avoidance holes 17 are located directly below the oil inlet end and the oil outlet end of the oil cylinder 3.

[0036] As Figure 3 shown, mounting blocks 5 are installed on the inner sides of both ends of the first housing 11 and the second housing 12. A threaded hole is formed in the mounting block 5, and a mounting ring is clamped on the oil cylinder 3 and is installed on the mounting block 5 through bolts.

[0037] As Figure 3 shown, the space between the two bosses 15 is hollowed out. On the basis of ensuring the strength of the two bosses 15, the weight of the housing 1 is reduced, the use of materials is reduced, and the production cost is lowered.

[0038] Among them, in order to increase the strength of the end heads of both ends of the first housing 11 and the second housing 12, reinforcing blocks are provided on the side edges of both ends of the first housing 11 and the second housing 12.

[0039] As Figure 4 shown, the crank 2 is used to prevent the wheel hub 6 from turning excessively, thereby improving the steering sensitivity of the forklift, reducing the abnormal wear of the tires, and effectively preventing the occurrence of running deviation. The crank 2 includes a crank body. A through hole 21 for cooperating with the rotating shaft is formed at the middle position of the crank body; a connecting ear block 22 is installed at the upper end of the crank body, and the curved rod 4 is connected to the connecting ear block 22 through bolts;

[0040] A pawl 23 is installed at the lower end of the crank body, and the concave surface of the pawl 23 faces the housing 1 to further prevent the wheel hub 6 from turning excessively;

[0041] An installation shaft 24 is installed on the left side of the crank body, and the wheel hub 6 is installed on the installation shaft 24 and is locked by an end cover 7.

[0042] Working process:

[0043] When the left side of the oil cylinder 3 is in a retracted state, it turns right with the right tire as the center to realize the right turn of the forklift;

[0044] When the right side of the oil cylinder 3 is in a retracted state, it turns left with the left tire as the center to realize the left turn of the forklift.

[0045] Based on the above inspiration from the ideal embodiments of the present utility model, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A reinforced forklift hydraulic steering axle, characterized by: The invention comprises a shell (1), wherein the shell (1) comprises a first shell (11) and a second shell (12), wherein the first shell (11) and the second shell (12) are connected via a transverse plate (13), wherein the first shell (11), the second shell (12) and the transverse plate (13) are an integrally formed structure, wherein an installation space is enclosed by the first shell (11), the second shell (12) and the transverse plate (13), and wherein rotating shafts are installed at both ends of the first shell (11) and the second shell (12), and wherein a horn crutch (2) is mounted on the rotating shafts; The upper and lower edges of the first shell (11) or the second shell (12) are both provided with bosses (15) extending outwards, and the bosses (15) are both provided with connecting shafts (16), and the connecting shafts (16) are connected to the vehicle frame.

2. The reinforced forklift hydraulic steering axle according to claim 1, characterized in that: It also includes an oil cylinder (3), which is installed transversely in the installation space. The clevis (2) and the oil cylinder (3) are connected via a curved rod (4). A wheel hub (6) is installed on the clevis (2) and is locked via an end cover (7). A tire is installed on the wheel hub (6).

3. The reinforced forklift hydraulic steering axle according to claim 1, characterized in that: A plurality of avoidance holes (17) are provided on the bottom surface of the transverse plate (13), and the avoidance holes (17) are located directly below the oil inlet end and the oil outlet end of the oil cylinder (3).

4. The reinforced forklift hydraulic steering axle according to claim 1, characterized in that: Mounting blocks (5) are installed on the inner sides of both ends of the first shell (11) and the second shell (12), screw holes are provided on the mounting blocks (5), and a mounting ring is clamped on the oil cylinder (3) and mounted on the mounting block (5) by means of bolts.

5. The reinforced forklift hydraulic steering axle according to claim 1, characterized in that: The space between the two bosses (15) is hollowed out.

6. The reinforced forklift hydraulic steering axle according to claim 1, characterized in that: Both end sides of the first shell (11) and the second shell (12) are provided with reinforcement blocks.

7. The reinforced forklift hydraulic steering axle according to claim 2, characterized in that: The described horn turn (2) comprises a horn turn body, a through hole (21) cooperating with the rotating shaft is provided at the middle position of the horn turn body; a connecting ear block (22) is installed at the upper end of the horn turn body, and the curved rod (4) and the connecting ear block (22) are connected by bolts; A ratchet (23) is installed at the lower end of the horn turn body, and the inner concave surface of the ratchet (23) faces the housing (1); A mounting shaft (24) is installed on the left side of the horn turn body, and the wheel hub (6) is installed on the mounting shaft (24) and locked by an end cover (7).

8. The reinforced forklift hydraulic steering axle according to claim 2, characterized in that: A plurality of lug blocks (9) are installed on the outer circumference of the wheel hub (6), and screw holes are provided on the lug blocks (9).

9. The reinforced forklift hydraulic steering axle according to claim 2, characterized in that: The extended end of the oil cylinder (3), the end of the first shell (11), the end of the second shell (12) and the connecting ear block (22) in the clevis (2) are all provided with oil injection holes (8).

10. The reinforced forklift hydraulic steering axle according to claim 1, characterized in that: The cross-sectional shape of the connecting shaft (16) in the vertical direction is a frustum, the cross-sectional shape of the connecting shaft (16) in the transverse direction is an ellipse, and the connecting shaft (16) is a hollow structure.

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