CN217780672U - Efficient industrial vehicle with small turning radius - Google Patents

Abstract

The utility model relates to an automatic change mechanical equipment field, concretely relates to industrial vehicle. The utility model discloses a can realize through following technical scheme: a high-efficiency industrial vehicle with a small turning radius comprises a driving wheel, a handle for driving the driving wheel to steer, a main frame and vehicle legs connected with the main frame, wherein the main frame comprises a side plate, a bottom plate and a top plate, the bottom plate, the side plate and the top plate form a semi-enclosed vehicle box accommodating area, and an oil cylinder is arranged in the vehicle box accommodating area; in the length direction of the vehicle, a battery box is positioned between the handle and the main frame; the utility model aims at providing a high-efficient industrial vehicle that turning radius is little, through the optimization to vehicle part and space, automobile body length reduces, and turning radius is little, and to the maintenance simple operation high efficiency of battery, promotes the vehicle practicality.

Description

An efficient industrial vehicle with a tight turning radius

technical field

The utility model relates to the field of automatic mechanical equipment, in particular to an industrial vehicle.

Background technique

Industrial vehicles refer to power-driven motor vehicles used to carry, push, tow, lift, stack or stack various goods. Common industrial vehicles include forklifts, side forklifts, tractors, pallet trucks, stackers and so on.

In terms of structure, industrial vehicles often include body, handle, fork, battery box, oil cylinder, pump station, controller and other components. Industrial vehicles have two actions during work, namely steering and lifting. During the lifting action, the oil cylinder is connected with the body, and the body is connected with the fork. When the piston rod in the oil cylinder is pushed out, the body and the fork are driven up and down. During the steering action, the handle is connected with the driving wheel assembly, and when the worker turns the handle, the driving wheel assembly is driven to turn synchronously.

For example, the Chinese patent document with the publication number CN201220551277.X discloses a small-sized electric pallet truck, which includes a main frame to which forks and handles are respectively connected. The box part of the main frame forms a housing space in which components such as pump stations, oil cylinders, controllers, etc. are installed. This kind of industrial vehicle has a stable and reliable structure and is widely used in warehouse logistics.

However, this structure has two drawbacks. On the one hand, with the development and maturity of logistics, the scale of goods in the warehouse is getting larger and larger. In order to improve the space efficiency of the warehouse, the distance between adjacent shelves is gradually reduced, that is, the width of the aisle is gradually reduced. Although the width of the industrial vehicle of this structure can often adapt to the narrow roadway, it also has a relatively long body length. This length makes the turning radius of the vehicle large, and it is easy to collide with the shelf when turning in the roadway. On the other hand, industrial vehicles are different from fuel vehicles, and their power often comes from battery packs. As the cargo weight of industrial vehicles increases and the driving environment becomes more complex, the battery life of the vehicles will naturally decrease. Carrying a large-volume battery further increases the length of the vehicle body, and the battery is loaded in the trunk, so it is very inconvenient to charge, replace, and maintain the battery.

Utility model content

The purpose of the utility model is to provide a high-efficiency industrial vehicle with a small turning radius. After optimizing the vehicle parts and space, the length of the vehicle body is reduced, the turning radius is small, and the maintenance operation of the battery is convenient and efficient, so as to improve the practicability of the vehicle.

A high-efficiency industrial vehicle with a small turning radius, comprising a driving wheel assembly, a handle that drives the driving wheel assembly to turn, a main frame and legs connected to the main frame, the main frame includes side panels , the bottom plate and the top plate, the bottom plate, the side plates and the top plate form a semi-enclosed carriage accommodation area, and the oil cylinder is arranged in the carriage accommodation area;

The handle and the driving wheel assembly are connected at the connection point a, during the rotation of the handle, the rotation track curve of the connection point a and the projection of the main frame on the ground form a rotation area B;

In the length direction of the vehicle, the battery box is located between the handle and the main frame;

The projection of the battery box on the ground, the front and side of the battery box, do not exceed or touch the boundary line of the rotation area B.

The main frame is located in the middle of the entire vehicle. According to the length direction of the vehicle, the direction close to the legs is defined as the rear, and the direction close to the front, that is, the direction close to the handle is defined as the front. The main frame is a box structure, forming a box accommodation area. First of all, this solution has redesigned the installation position of the battery box, which is neither arranged in the compartment storage area nor behind the main frame, that is, it is not arranged outside the compartment storage area, but placed on the legs superior. Instead, it is placed in front of the main frame, between the main frame and the handle.

Between the main frame and the handle, due to the existence of the driving wheel assembly, it is necessary to reserve a certain space in the length direction of the vehicle to facilitate the arrangement of the driving wheel assembly. In the present case, the battery box is arranged in this area. It can be the side end or the upper end of the drive wheel assembly, depending on the specific shape and style of the vehicle. No matter where it is located, the battery box will not occupy additional space in the direction of the vehicle length. Such a space design, on the one hand, makes the overall length of the vehicle body under control, and the vehicle has a smaller turning radius. On the other hand, even if the vehicle needs a larger battery capacity and a larger battery box volume, it only needs to increase the height of the battery, and the length of the vehicle body can still be effectively controlled.

Secondly, the shape and size design of the battery box is limited. Specifically, in actual work, the user operates the handle to steer the vehicle. The limit rotation angles of the handle are 90° to the left and 90° to the right respectively. The trajectory of the connection point a is a circle of 180° in the horizontal direction arc. As mentioned above, the location of the battery box and the projection of the battery box on the ground are not allowed to touch or exceed the 180° arc line of a mentioned above in the front and side. In actual work, the handle and the driving wheel assembly are hinged at the connection point a, and the handle can be turned over in the vertical direction. The limit angle of flipping is often set to be perpendicular to the horizontal plane and parallel to the horizontal plane. That is, with such a shape design of the battery box, when the handle turns left and right, any position of the battery box will not collide with the handle.

Again, since the piston rod of the oil cylinder needs to push the top plate of the main frame so as to realize the lifting of the main frame, it is inevitable to place the oil cylinder in the carriage accommodation area. In this case, because the battery box is not placed in the compartment of the car, the operation of charging, maintaining, and replacing the battery becomes very convenient, and the operation process does not involve collision or interference with the oil cylinder. Tools also have a larger operating space.

As a preference of the present utility model, the pump station is arranged in the compartment accommodation area.

As a preference of the present invention, the pump station is located on the side of the oil cylinder away from the handle.

As a preference of the present invention, it also includes a sub-frame, the sub-frame includes a fixed block above the driving wheel assembly, and the battery box is installed above the fixed block.

As a preference of the present utility model, the controller is installed on the fixed block or on the battery box.

As a preference of the present utility model, the sub-frame further includes a lower connecting plate connected to the fixed block, the lower connecting plate is located on both sides of the driving wheel assembly, and the lower connecting plate is hinged to The pieces are connected with the legs.

As a preference of the present utility model, the lower connection plate is provided with passage slots for passing through the wire harnesses, and the wire harnesses are respectively connected to the controller and the driving wheel assembly.

As a preference of the present utility model, the pump station is connected to the sub-frame, the cylinder barrel of the oil cylinder is connected to the sub-frame, and the piston rod of the oil cylinder conflicts with the bottom surface of the top plate.

As a preference of the present utility model, this kind of industrial vehicle has a central axis L2 in the vehicle length direction, and the battery box is centrally arranged relative to the central axis L2.

As a preference of the present invention, the projection of the battery box on the ground overlaps the projection of the main frame on the ground in the back direction of the battery box.

In summary, the utility model has the following beneficial effects:

1. The total length of the body is controlled, and the vehicle has a smaller turning radius. Even if the vehicle needs a larger battery capacity and a larger battery box volume, it only needs to increase the height of the battery, and the length of the vehicle body can still be effectively controlled.

2. The battery box is not placed in the compartment of the carriage, but placed above the sub-frame, so the operation of charging, maintaining and replacing the battery becomes very convenient, and the operation process does not involve collision with the oil cylinder Or interference, various tools also have a larger operating space.

3. There are no electrical components and wires on the main frame. During transportation, the main frame can be placed horizontally and upside down arbitrarily, which increases the number of containers transported and reduces transportation costs.

4. During the turning process of the vehicle, there will be no collision and interference between the battery box and the handle.

5. Regardless of the turning or lifting action of the vehicle, the battery box, controller, oil cylinder, and pump station are kept relatively still with the sub-frame, which avoids frequent movement of various components and component wires when the vehicle is running. bit, avoiding collision and wear during the shifting process.

6. The carriage adopts a trapezoidal folded design, with a narrow top and a bottom section. On the one hand, it is more conducive to the design trend of light and small industrial vehicles. On the other hand, it is beneficial to the widening and unobstructed view of workers during operation, improving the safety of work.

7. The pumping station and the oil cylinder are arranged in the carriage accommodation area, which optimizes the moment arm during the lifting process, improves the structural stability of the main frame, and further optimizes the turning radius of the vehicle.

Description of drawings:

Fig. 1 is the schematic diagram of embodiment 1;

Fig. 2 is an enlarged schematic view of the subframe in Fig. 1;

Fig. 3 is a side view of Fig. 1;

Fig. 4 is a schematic diagram of Fig. 3 hiding the main frame and the legs;

Fig. 5 is a schematic top view of Fig. 1 in the case of turning the handle;

Fig. 6 is the schematic diagram of embodiment 2;

7 is a schematic diagram of Embodiment 3.

In the picture:

11, main frame, 111, side plate, 112, top plate, 113, carriage accommodation area, 12, car leg, 21, handle, 22, drive wheel assembly, 3, sub-frame, 31, fixed block, 32, Lower connecting plate, 4, controller, 5, battery box, 6, oil cylinder, 7, pumping station, 8, hinge piece. a. Connection point 1, L1, central axis 1, B, rotation area, L2, central axis 2.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution according to needs after reading this specification, but as long as they are within the utility model All new claims are protected by patent law.

Embodiment 1, an industrial vehicle can be different types of vehicles such as forklifts, stackers, sorting vehicles, etc. This technical solution takes forklifts as an example.

As shown in FIGS. 1 and 3 , the main frame 11 and the legs 12 are often made of steel structures, which are the main load-bearing and force-bearing parts of the entire industrial vehicle. The legs 12 are connected to the main frame 11 and can be seen as a whole on the motion track.

The main frame 11 includes structural panels such as back panel, side panel 111 , bottom panel and roof panel 112 , and each panel forms a semi-enclosed area as shown in FIGS. In this case, the oil cylinder 6 and the pumping station 7 are arranged in the space of the compartment accommodation area 113 .

In this application document, the length direction of the vehicle is defined as the side close to the handle 21, that is, the left side in FIG. 1 is the front, and the length direction is close to the side of the leg 12, that is, the right side in FIG.

The layout position of the pumping station 7 is more backward than the oil cylinder 6.

In this case, a sub-frame 3 is provided, and the sub-frame 3 has no special function and is mainly used as a load-bearing component. It includes a fixed block 31 and a lower connection plate 32 . The handle 21 is connected with the driving wheel assembly 22, and the driving wheel assembly 22 is connected with the sub-frame 3 through components such as rotating shafts and bearings. And these parts of pumping station 7, battery box 5, controller 4 are all connected with subframe 3. And the part of oil cylinder 6, its cylinder tube is connected on the subframe 3, and the piston rod is in conflict with the lower surface of top plate 112, thereby drives the lifting of main frame 11 and vehicle leg 12.

The source of vehicle operation comes from the power pack, that is, the battery box 5 in FIG. 2 . In this case, the battery box is not placed in the box accommodation area 113 , but placed between the main frame 11 and the handle 21 . Furthermore, the fixed block 31 is located directly above the driving wheel assembly 22 in the vertical direction. And the battery box 5 is just installed in the top position of the fixed block 31 .

Between the main frame 11 and the handle 21, due to the existence of the driving wheel assembly 22, it is necessary to reserve a certain space in the vehicle length direction to facilitate the arrangement of the driving wheels. In the present case, the battery box 5 is arranged in this area. Thus, the battery box 5 does not occupy additional space in the longitudinal direction of the vehicle. Such a space design, on the one hand, makes the overall length of the vehicle body under control, and the vehicle has a smaller turning radius. On the other hand, even if the vehicle needs a larger battery capacity and a larger volume of the battery box 5, it only needs to increase the height of the battery, and the length of the vehicle body can still be effectively controlled.

Secondly, in this case, since the battery box 5 is not placed in the carriage accommodation area 113, operations such as charging, maintaining, and replacing the battery become very convenient, and the operation process does not involve collision with the oil cylinder 6 Or interference, various tools also have a larger operating space.

Such a design can also realize that there are no electrical components and no wires on the main frame 11 . The main frame 11 can be simplified, it can be a pure steel structure, and the manufacturing and workshop transfer costs are low. During transportation, the main frame 11 can be placed horizontally and upside down arbitrarily, which increases the number of containers transported and reduces transport costs.

The shape and size design of the battery box is limited. Specifically, as shown in FIG. 3 , FIG. 4 and FIG. 5 . The handle 22 and the driving wheel assembly 22 are hinged at the connection point a, and the user relies on the handle 22 to drive the driving wheel 22 to turn left and right. Meanwhile, the handle 22 can also rotate in the vertical direction relative to the driving wheel 22 .

As shown in Fig. 3 and Fig. 5, the driving wheel assembly 22 must include a rotating shaft. Like the prior art, the driving wheel assembly 22 and the handle 21 rotate horizontally around the axis of the rotating shaft, that is, the central axis-L1. When the handle 21 is rotating, 90° to the left and 90° to the right are the limit angles of the handle turning. The angular rotation limit design of the handle 21 is the content of the prior art, and there is no change in this solution, so it will not be described in detail here. During the turning process of the handle 21, the track of the connection point a is a 180-degree semicircular arc with the projection of L1 on the ground as the center.

The semicircular arc is at the front end, and the rear end is the projection of the main frame 11 on the ground, and the two together form a semicircular rotating area B. As for the projection of the battery box 5 on the ground, its shape and size must be designed so that it is in the rotation area B. Specifically, the front and side of the projection must not touch or cross the boundary line of B, and the boundary line of B is actually the semicircular trajectory of a's rotational movement.

As mentioned above, in actual work, the handle 21 can be turned over in the vertical direction. The limit angle of flipping is often set to be perpendicular to the horizontal plane and parallel to the horizontal plane. That is, with such a shape design of the battery box 5, when the handle turns left and right, any position of the battery box 5 will not interfere with the handle.

In this case, the movement independence of each component of the vehicle is also designed.

Specifically, as shown in Figure 1, this type of vehicle can be regarded as three general components. Composition A: the handle 21 on the left side in Fig. 1 and the driving wheel 22 are connected, and the worker turning the handle 21 in the horizontal direction will drive the driving wheel 22 to turn. Composition B: the main frame 11 on the right side of the figure and the legs 12 connected thereto, under the jacking action of the lifting structure, the main frame 11 and the legs 12 lift up and down to drive the goods up and down. Composition C: the part in the middle of the figure, including the subframe 3, and the subframe 3 is connected with four major parts, as shown in Figure 2, which are the battery box 5, the lifting structure cylinder 6, the pump station 7 and the controller 4 .

Under such an industrial design, when the vehicle turns, components C and A rotate relative to each other, but components in C remain relatively stationary, especially between the controller 4 and the battery box 5 . When the vehicle is raised and lowered, there is a relative lift between composition C and composition B, but each component in composition C remains relatively static, and only the piston rod of oil cylinder 6 is moving. Under such a design, whether it is the turning or lifting action of the vehicle, the battery box 5, the controller 4, the oil cylinder 6, and the pump station 7 are kept relatively stationary with the subframe 3, which avoids the various parts of the vehicle when the vehicle is running. Components and their wires are frequently displaced, avoiding collisions and abrasions during the displacement process.

The controller 4 is arranged on the front of the fixed block 31 , that is, on the side close to the handle 21 . On the one hand, the problem that the volume of the housing placed on the side of the fixing block 31 becomes larger is avoided. On the other hand, this area is close to directly above the drive wheels. The lower connection plate 32 is provided with a passage slot under the fixed block 31, and the wire harness can directly connect the drive wheel and the controller 4, the wiring distance is short, and the wiring is convenient.

In this case, the carriage adopts a trapezoidal folded design with a narrow top and a bottom section. On the one hand, it is more conducive to the design trend of light and small industrial vehicles. On the other hand, it is beneficial to the widening and unobstructed view of workers during operation, improving the safety of work. .

One end of the hinge piece 8 is rotatably connected with the main frame 11, and the other end is rotatably connected with the lower connection plate 32, so as to improve the stability of the main frame 11 during the lifting process.

Embodiment 2, as shown in 6, differs from Embodiment 1 in the shape of the battery box 5 . In the present embodiment, the part of the battery box 5 exceeds the limit of the rotation area B, but does not exceed the front or side, but the rear. That is, the rear end portion of the battery box 5 enters the compartment accommodating area 113 in the main frame 11 . The rear end of the battery box 5 can also be designed with a circular arc shape, which is used to avoid the oil cylinder 6. This implementation is also within the protection scope of the claims of the present application, can solve the same technical purpose, and achieve the same technical effect.

The center line of the vehicle in the length direction is the central axis L2 in the figure, and the battery box 5 is placed in the center relative to L2.

Embodiment 3, as shown in FIG. 7 , differs from Embodiment 1 in the left and right arrangement positions of the battery box 5 . In this embodiment, the battery box 5 is not centered relative to the central axis L2. But the front end and the side end of the battery box 5 are projected on the ground, and also do not touch or exceed the boundary line of B.

Claims (10)

1. A high-efficiency industrial vehicle with a small turning radius, comprising a driving wheel assembly (22), a handle (21) that drives the driving wheel assembly (22) to turn, a main frame (11) and the main vehicle The legs (12) connected by the frame (11) are characterized in that: the main frame (11) includes a side plate (111), a bottom plate and a top plate (112), and the bottom plate, the side plate (111) and The top plate (112) forms a semi-enclosed carriage accommodation area (113), and the oil cylinder (6) is arranged in the carriage accommodation area (113); the handle (21) and the drive wheel assembly (22) Connected at connection point one (a), during the rotation process of the handle (21), the rotation trajectory curve of the connection point one (a) and the projection of the main frame (11) on the ground form a rotation Area (B); in the length direction of this efficient industrial vehicle, the battery box (5) is located between the handle (21) and the main frame (11); the battery box (5) is on the ground In projection, the front and side of the battery box (5) neither exceed nor touch the boundary line of the rotation area (B). 2. The high-efficiency industrial vehicle with a small turning radius according to claim 1, characterized in that: the pumping station (7) is arranged in the compartment accommodation area (113). 3. The high-efficiency industrial vehicle with a small turning radius according to claim 2, characterized in that: the pump station (7) is located on the side of the oil cylinder (6) away from the handle (21). 4. The high-efficiency industrial vehicle with a small turning radius according to claim 1, characterized in that it also includes a subframe (3), and the subframe (3) includes the drive wheel assembly (22 ) above the fixed block (31), the battery box (5) is installed above the fixed block (31). 5. The high-efficiency industrial vehicle with small turning radius according to claim 4, characterized in that: the controller (4) is installed on the fixed block (31) or on the battery box (5). 6. The high-efficiency industrial vehicle with small turning radius according to claim 5, characterized in that: the sub-frame (3) also includes a lower connecting plate (32) connected to the fixed block (31), The lower connecting plate (32) is located on both sides of the driving wheel assembly (22), and the lower connecting plate (32) is connected to the vehicle leg (12) through a hinge piece (8). 7. The high-efficiency industrial vehicle with a small turning radius according to claim 6, characterized in that: the lower connection plate (32) is provided with passage slots for wire harnesses to pass through, and the wire harnesses are respectively connected to the control device (4) and the drive wheel assembly (22). 8. A high-efficiency industrial vehicle with a small turning radius according to claim 4, characterized in that: the pump station (7) is connected to the sub-frame (3), and the cylinder barrel of the oil cylinder (6) is connected to the sub-frame The vehicle frame (3) is connected, and the piston rod of the oil cylinder (6) is in conflict with the bottom surface of the top plate (112). 9. A high-efficiency industrial vehicle with a small turning radius according to any one of claims 1-8, characterized in that: the high-efficiency industrial vehicle has a central axis 2 (L2) in the vehicle length direction, and the battery box ( 5) Arranged centrally relative to the central axis 2 (L2). 10. A high-efficiency industrial vehicle with a small turning radius according to any one of claims 1-8, characterized in that: the projection of the battery box (5) on the ground is on the back of the battery box (5) There is an overlapping area between the direction and the projection of the main frame (11) on the ground.

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