Wheel steering device

Abstract

The utility model discloses a wheel steering device, and particularly relates to the technical field of wheel steering, the wheel steering device comprises two groups of steering mechanisms arranged on a ship cleaning vehicle, each group of steering mechanism comprises a steering oil cylinder, two piston rods are arranged on the steering oil cylinder, and steering shafts are fixedly arranged at two ends of the two piston rods. A steering pull rod is fixedly arranged at one end of the steering shaft, linkage frames are connected to one end of the steering pull rod, wheels are connected to the four corners of the bottom of the ship cleaning vehicle, and the multiple linkage frames are connected with the multiple wheels correspondingly. The steering oil cylinder pushes the wheels on the two sides of the ship cleaning vehicle to steer at the same time, the front steering mechanism and the rear steering mechanism are independently controlled, flexible and stable steering of the ship cleaning vehicle can be achieved, and therefore the flexibility of the ship cleaning vehicle is improved, the structure is simple, use and maintenance are very convenient, and the sealing cover covers the steering oil cylinder. The situation that the viscosity is increased and the steering flexibility is affected due to the fact that the temperature of oil in the steering oil cylinder is lowered is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel steering, more specifically to a wheel steering device. Background Art

[0002] Ship cleaning vehicles often need to maneuver between different ship berthing locations and port areas. A well-designed wheel steering system ensures the vehicle can maneuver flexibly in narrow spaces and complex terrain, quickly reaching the vessel in need of cleaning. The wheel steering system is a critical component in the vehicle, controlling the steering angle of the wheels. For example, prior art publication number CN209650369U discloses a wheel steering system with advantages such as a simple structure, small footprint, low cost, simultaneous adjustment of the front and rear wheels, and a small turning radius.

[0003] However, the above-mentioned prior art still has the following problems when used: when using the oil cylinder as a power source to drive the wheel steering, since the working environment of the ship cleaning vehicle is at the seaside, the cold air will cause the oil temperature in the oil cylinder to drop, resulting in increased oil viscosity, thereby increasing the friction between the piston rod and the oil cylinder, resulting in the problem of inflexible steering. Based on this, the utility model provides a wheel steering device with high flexibility. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a wheel steering device, which simultaneously pushes the wheels on both sides of the ship cleaning vehicle to steer through the steering cylinder. The front and rear steering mechanisms are independently controlled, so that the ship cleaning vehicle can be flexibly and smoothly steered, thereby improving the flexibility of the ship cleaning vehicle. The structure is simple and the use and maintenance are very convenient. A sealing cover is provided to cover the steering cylinder to prevent the oil temperature in the steering cylinder from decreasing and causing the viscosity to increase, thereby affecting the steering flexibility, so as to solve the problems arising from the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wheel steering device, comprising two steering mechanisms provided on a ship cleaning vehicle, each steering mechanism comprising a steering cylinder, two piston rods being provided on the steering cylinder, both ends of the two piston rods being fixed with steering shafts, one end of the steering shaft being fixed with a steering pull rod, one end of the steering pull rod being connected with a linkage frame, wheels being connected to the four corners of the bottom of the ship cleaning vehicle, and multiple linkage frames being respectively connected to multiple wheels, a sealing assembly being provided on the outer side of the steering cylinder, the sealing assembly comprising a sealing cover, an electric heating plate being fixed on the inner wall of the sealing cover, mounting holes being opened on both sides of the sealing cover, detachable ring plates being fixed inside the two mounting holes, and the two ring plates being respectively sleeved on the outer sides of the two piston rods.

[0006] In a preferred embodiment, two connecting seats are fixed to the bottom end of the steering cylinder, and both connecting seats are detachably fixed to the ship cleaning vehicle by high-strength bolts, which are used to improve the stability of the steering cylinder and facilitate the staff to disassemble the steering cylinder for inspection and maintenance.

[0007] In a preferred embodiment, the bottom of the sealing cover passes through two connecting seats and contacts the top of the ship cleaning vehicle. The sealing cover is arranged inside the high-strength bolt to prevent the sealing cover from affecting the installation of the high-strength bolt.

[0008] In a preferred embodiment, the multiple steering shafts and the multiple linkage frames are all rotatably connected to the ship cleaning vehicle, and the linkage frames pass through the top of the ship cleaning vehicle.

[0009] In a preferred embodiment, a water-swelling waterstop is provided between the ring plate and the mounting hole, and rubber sealing rings are provided on the inner walls of the two ring plates. The rubber sealing rings are sleeved on the piston rod to improve the sealing between the ring plate and the piston rod.

[0010] In a preferred embodiment, multiple positioning rods are fixed on the side where the two ring plates are close to each other, and multiple positioning holes are opened on the inner wall on the side where the two mounting holes are away from each other. The multiple positioning rods are respectively inserted into the multiple positioning holes, and the positioning rods cooperate with the positioning holes to facilitate the staff to quickly install the ring plates.

[0011] In a preferred embodiment, the sealing cover and the ring plate are both made of stainless steel, which has corrosion resistance, heat preservation, low temperature resistance and high temperature resistance. Therefore, the sealing cover made of stainless steel has heat preservation and corrosion resistance and can be corroded by seawater, thereby protecting the steering cylinder.

[0012] Technical effects and advantages of this utility model:

[0013] 1. The utility model uses a steering cylinder to simultaneously push the wheels on both sides of the ship cleaning vehicle to steer. The front and rear steering mechanisms are independently controlled, which can achieve flexible and smooth steering of the ship cleaning vehicle, thereby improving the flexibility of the ship cleaning vehicle. The structure is simple and the use and maintenance are very convenient. A sealing cover is provided to cover the steering cylinder to prevent the oil temperature in the steering cylinder from decreasing, resulting in increased viscosity and affecting steering flexibility.

[0014] 2. An electric heating plate is installed to increase the temperature of the steering cylinder to ensure the dilution flow of the oil in the steering cylinder, thereby driving the steering more stably. The sealing cover can also prevent the steering cylinder from being corroded by seawater, thereby extending the service life of the steering cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the sealing cover of the present utility model;

[0017] Figure 3 This is a structural diagram of the ring plate and sealing cover of the utility model;

[0018] Figure 4 This is a cross-sectional view of the sealing cover of the present utility model;

[0019] Figure 5 It is a side view of the ring plate of the present utility model.

[0020] The accompanying drawings are marked as follows: 1. Ship cleaning vehicle; 2. Steering mechanism; 3. Wheel; 4. Sealing assembly; 5. Connecting seat; 6. High-strength bolt; 7. Water-expandable waterstop; 8. Rubber sealing ring; 9. Positioning rod; 10. Positioning hole;

[0021] 201, steering cylinder; 202, piston rod; 203, steering shaft; 204, steering tie rod; 205, linkage frame;

[0022] 401, sealing cover; 402, electric heating plate; 403, mounting hole; 404, ring plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Refer to the instruction manual Figure 1-5 The present invention provides a wheel steering device, comprising two steering mechanisms 2 provided on a ship cleaning vehicle 1, each steering mechanism 2 comprising a steering cylinder 201, two piston rods 202 provided on the steering cylinder 201, both ends of the two piston rods 202 are fixed with a steering shaft 203, one end of the steering shaft 203 is fixed with a steering rod 204, one end of the steering rod 204 is connected to a linkage frame 205, the four corners of the bottom of the ship cleaning vehicle 1 are connected to wheels 3, and multiple linkage frames 205 are respectively connected to multiple wheels 3;

[0025] Two connecting seats 5 are fixed to the bottom end of the steering cylinder 201. The two connecting seats 5 are detachably fixed to the ship cleaning vehicle 1 through high-strength bolts 6, which are used to improve the stability of the steering cylinder 201 and facilitate staff to disassemble the steering cylinder 201 for inspection and maintenance. Multiple steering shafts 203 and multiple linkage frames 205 are all rotatably connected to the ship cleaning vehicle 1, and the linkage frames 205 pass through the top of the ship cleaning vehicle 1.

[0026] When in use, the steering cylinder 201 is used to simultaneously push the two piston rods 202 to move, and the piston rods 202 drive the wheels 3 on both sides of the ship cleaning vehicle 1 to steer through the steering shaft 203, the steering rod 204 and the linkage frame 205. Each ship cleaning vehicle 1 is provided with two sets of front and rear steering mechanisms 2, which are independently controlled to achieve flexible and smooth steering of the ship cleaning vehicle 1, thereby improving the flexibility of the ship cleaning vehicle 1. The structure is simple and the use and maintenance are very convenient.

[0027] Refer to the instruction manual Figure 1-5 The outer side of the steering cylinder 201 is provided with a sealing assembly 4, and the sealing assembly 4 includes a sealing cover 401. The sealing cover 401 and the ring plate 404 are both made of stainless steel, which is used to make the sealing cover 401 have heat preservation properties. The inner wall of the sealing cover 401 is fixed with an electric heating plate 402. The sealing cover 401 has mounting holes 403 on both sides. Removable ring plates 404 are fixed inside the two mounting holes 403. The two ring plates 404 are respectively sleeved on the outer sides of the two piston rods 202;

[0028] The bottom of the sealing cover 401 passes through the two connecting seats 5 and contacts the top of the ship cleaning vehicle 1. The sealing cover 401 is arranged on the inner side of the high-strength bolt 6 to prevent the sealing cover 401 from affecting the installation of the high-strength bolt 6.

[0029] To ensure the sealing of the ring plate 404, a water-swelling waterstop 7 is provided between the ring plate 404 and the mounting hole 403. The inner walls of the two ring plates 404 are provided with a rubber sealing ring 8, which is sleeved on the piston rod 202 to improve the sealing between the ring plate 404 and the piston rod 202.

[0030] A plurality of positioning rods 9 are fixed on the side where the two ring plates 404 are close to each other, and a plurality of positioning holes 10 are opened on the inner wall where the two mounting holes 403 are away from each other. The plurality of positioning rods 9 are respectively inserted into the plurality of positioning holes 10. With the help of the positioning rods 9 and the positioning holes 10, it is convenient for the staff to quickly install the ring plates 404.

[0031] A sealing cover 401 is put on the outside of the steering cylinder 201, and the steering cylinder 201 is sealed by the sealing cover 401. The sealing cover 401 is made of stainless steel, which can improve the heat insulation of the sealing cover 401, reduce the heat loss of the steering cylinder 201, and block cold air to prevent the viscosity of the oil in the steering cylinder 201 from increasing and affecting the steering flexibility. An electric heating plate 402 is provided to heat the steering cylinder 201, thereby ensuring the dilution flow of the oil in the steering cylinder 201, thereby better steering. At the same time, the sealing cover 401 can wrap the steering cylinder 201 to prevent the steering cylinder 201 from being corroded by seawater, thereby extending the service life of the steering cylinder 201.

[0032] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wheel steering device, characterized in that: The invention comprises two groups of steering mechanisms (2) provided on a ship cleaning vehicle (1), each group of steering mechanisms (2) comprises a steering oil cylinder (201), two piston rods (202) are provided on the steering oil cylinder (201), both ends of the two piston rods (202) are fixedly provided with a steering shaft (203), one end of the steering shaft (203) is fixedly provided with a steering tie rod (204), one end of the steering tie rod (204) is connected to a linkage frame (205), the four corners of the bottom of the ship cleaning vehicle (1) are connected to wheels (3), and a plurality of linkage frames (205) are respectively connected to a plurality of wheels (3); The outer side of the steering oil cylinder (201) is provided with a sealing assembly (4), the sealing assembly (4) comprises a sealing cover (401), an electric heating plate (402) is fixedly provided on the inner wall of the sealing cover (401), mounting holes (403) are provided on both sides of the sealing cover (401), and detachable ring plates (404) are fixedly provided inside the two mounting holes (403), and the two ring plates (404) are respectively sleeved on the outer sides of the two piston rods (202).

2. A wheel steering device according to claim 1, characterized in that: Two connecting seats (5) are fixedly provided at the bottom end of the steering oil cylinder (201), and the two connecting seats (5) are detachably fixed to the ship cleaning vehicle (1) via high-strength bolts (6).

3. A wheel steering device according to claim 2, characterized in that: The bottom of the sealing cover (401) passes through the two connecting seats (5) and contacts the top of the ship cleaning vehicle (1). The sealing cover (401) is arranged on the inner side of the high-strength bolt (6).

4. A wheel steering device according to claim 1, characterized in that: The plurality of steering shafts (203) and the plurality of linkage frames (205) are all rotatably connected to the ship cleaning vehicle (1), and the linkage frames (205) penetrate the top of the ship cleaning vehicle (1).

5. The wheel steering device according to claim 1, characterized in that: A water-swelling waterstop (7) is provided between the ring plate (404) and the mounting hole (403), and the inner walls of the two ring plates (404) are both provided with rubber sealing rings (8), which are sleeved on the piston rod (202).

6. The wheel steering device according to claim 1, characterized in that: A plurality of positioning rods (9) are fixedly provided on the adjacent side of the two ring plates (404), and a plurality of positioning holes (10) are opened on the inner wall of the distal side of the two mounting holes (403), and the plurality of positioning rods (9) are respectively inserted into the plurality of positioning holes (10).

7. The wheel steering device according to claim 1, characterized in that: The sealing cover (401) and the ring plate (404) are both made of stainless steel.

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