Speed ​​control structure of a semi-electric platform vehicle

Abstract

This application discloses a speed control structure for a semi-electric platform vehicle; it includes a platform plate and a speed control component; the platform plate is movably mounted on the vehicle body and is adapted to be disassembled by translational movement relative to the vehicle body; the speed control component is located between the vehicle body and the platform plate, and is used to adjust the frictional force when the platform plate moves along the vehicle body during disassembly, thereby adjusting the disassembly and movement speed of the platform plate. The beneficial effects of this application are: speed control is achieved through the speed control component between the platform plate and the vehicle body; the speed control component changes the magnitude of the frictional force between itself and the platform plate or the vehicle body, thereby enabling more precise control of the relative movement speed between the platform plate and the vehicle body, resulting in stable movement speed and rapid response to speed adjustment, significantly improving work efficiency and safety stability.

Description

Technical Field

[0001] This application relates to the field of semi-electric platform vehicles, and in particular to a speed control structure for a semi-electric platform vehicle. Background Technology

[0002] Platform trucks are crucial equipment for material handling and high-altitude operations, their core purpose being to provide a stable and controllable vertical moving platform. Through a sophisticated track system, drive unit, and balancing mechanism, they achieve precise positioning, smooth operation, and safe load-bearing capacity of the platform panels under complex working conditions. The overall motion accuracy and operational stability of the platform truck directly determine handling efficiency, operational safety, and the equipment's applicability.

[0003] Currently, in the use and debugging of traditional platform vehicles, the horizontal movement of the platform plate mostly relies on simple mechanical transmission or manual adjustment. This results in unstable movement speed and difficulty in precise control. Furthermore, due to the significant weight of the platform plate, the inertia during movement is substantial, making accurate speed control even more challenging. Relying solely on manual experience or simple mechanisms for control is not only slow in response but also easily affects operational accuracy and safety. Moreover, the positioning of the platform plate often requires operators to repeatedly try and adjust, which is cumbersome, inefficient, and makes it difficult to ensure consistency under different working conditions. Based on these problems, a new solution is urgently needed. Utility Model Content

[0004] The purpose of this application is to provide a speed control structure for a semi-electric platform vehicle that can solve at least one of the defects in the above-mentioned background art.

[0005] To achieve at least one of the above objectives, this application provides a speed control structure for a semi-electric platform vehicle, including a platform plate and a speed control component; the platform plate is movably mounted on the vehicle body and is adapted to be disassembled by translation relative to the vehicle body; the speed control component is located between the vehicle body and the platform plate, and is used to adjust the frictional force when the platform plate moves along the vehicle body during disassembly, thereby adjusting the disassembly and movement speed of the platform plate.

[0006] Preferably, the speed control component is installed on the vehicle body in contact with the platform plate.

[0007] Preferably, the speed control component is installed on the platform plate and contacts the vehicle body.

[0008] Preferably, the speed regulating component includes a clamping component and an adjusting block; the clamping component is mounted on the platform plate, and a receiving cavity is provided at the end of the clamping component near the vehicle body; the adjusting block is disposed in the receiving cavity and rolls in contact with the vehicle body; the clamping component is adapted to adjust the clamping force on the adjusting block, thereby changing the rolling friction between the adjusting block and the vehicle body.

[0009] Preferably, the clamping assembly includes a connecting column and a clamping rod; the connecting column has a threaded hole at its center and is fixedly connected to the platform plate; the end of the connecting column near the vehicle body has a receiving cavity; the receiving cavity communicates with the threaded hole; the clamping rod is threaded into the threaded hole of the connecting column, the first end of the clamping rod extends out of the connecting column to the outside to drive the clamping rod to rotate, and the second end of the clamping rod contacts the adjusting block.

[0010] Preferably, the shape of the adjusting block is a sphere or a cylinder.

[0011] Preferably, the contact surface between the clamping rod and the adjusting block is a flat or arc-shaped surface.

[0012] Preferably, the platform plate is movably mounted to the vehicle body via a rolling assembly; a groove is provided on the side of the vehicle body, and the rolling assembly rolls into the groove.

[0013] Preferably, the rolling assembly includes a support member and a rolling member; the support member is fixedly installed on the platform plate, and the rolling member is installed on the support member and rolls in cooperation with the groove.

[0014] Preferably, the support member is the connecting column.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: In the technical solution of this application, speed is adjusted by a speed regulating component between the platform plate and the vehicle body. The speed regulating component changes the magnitude of the friction between itself and the platform plate or the vehicle body, thereby enabling more precise control of the relative movement speed between the platform plate and the vehicle body, making the movement speed stable, and the speed adjustment response rapid, which greatly improves work efficiency and safety stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0018] Figure 3 This is a schematic diagram illustrating the fit between the clamping rod and the clamping component of this utility model. Figure 1 .

[0019] Figure 4 This is a schematic diagram illustrating the fit between the clamping rod and the clamping component of this utility model. Figure 2 .

[0020] Figure 5 This is a schematic diagram illustrating the fit between the clamping rod and the clamping component of this utility model. Figure 3 .

[0021] In the figure: speed control component 1, clamping component 110, connecting column 111, receiving cavity 112, clamping rod 113, adjusting block 120, rolling component 2, rolling element 210, platform plate 3, vehicle body 4. Detailed Implementation

[0022] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0024] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0025] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0026] A preferred embodiment of this application, such as Figure 1 and Figure 2 As shown, a speed control structure for a semi-electric platform vehicle includes a platform plate 3 and a speed control component 1. The platform plate 3 is movably mounted on the vehicle body 4 and is adapted to be disassembled by translational motion relative to the vehicle body 4. The speed control component 1 is located between the vehicle body 4 and the platform plate 3. The speed control component 1 is used to adjust the friction force when the platform plate 3 moves along the vehicle body 4 during disassembly, thereby adjusting the disassembly and movement speed of the platform plate 3.

[0027] It should be understood that in the traditional platform vehicle, when the platform plate 3 needs to be disassembled or its position finely adjusted during use and debugging, simple mechanical transmission or manual adjustment methods are often used. If the resistance between the two is small, the speed is easily too high and difficult to control precisely; if the resistance between the two is large, the adjustment or disassembly process is too strenuous, greatly reducing production efficiency and increasing the workload of the operators. Furthermore, due to the large weight of the platform plate and the significant inertia, deceleration protection should be implemented to make the overall structure safer. Therefore, this application adopts a speed regulating component 1 between the platform plate 3 and the vehicle body 4. By changing the frictional resistance between the vehicle body 4 and the platform plate 3 through the speed regulating component 1, the relative speed of the platform plate 3 and the vehicle body 4 during relative movement is controlled.

[0028] Understandably, by precisely adjusting the magnitude of the friction force through the speed control component 1, it can be ensured that under any working condition, a suitable and stable friction force can be used to control the relative speed between the platform plate 3 and the vehicle body 4, preventing it from being too fast or too slow. This reduces the tedious and inefficient operation that requires repeated attempts and adjustments by the operator, and also reduces the risk of wear and tear on components due to frequent manual intervention.

[0029] Specifically, there are two ways to install the speed control component 1. In the first way, the speed control component 1 is installed on the vehicle body 4 and then contacts the platform plate 3 through the speed control component 1. In this way, the speed control component 1 is directly installed on the supporting frame of the vehicle body 4, and the side of the platform plate 3 is installed on the inner side of the frame of the vehicle body 4. This installation method makes the installation and disassembly of the platform plate 3 more convenient. No additional structure needs to be set on the platform plate 3. Ordinary platform plates 3 can be installed with the speed control component 1 installed on the vehicle body 4 for speed adjustment.

[0030] The second type, such as Figure 1-2 As shown, the speed control component 1 is installed on the platform plate 3 and then contacts the vehicle body 4 through the speed control component 1. In this method, no additional structure is installed on the vehicle body 4. Instead, the speed control component 1 is installed on the platform plate 3, and then the platform plate 3 contacts the vehicle body 4 through the speed control component 1, thereby achieving the effect of changing the friction. Since the platform plate 3 has the speed control component 1, this method makes it more flexible to use this type of platform plate 3 for various platform vehicles, improving the efficiency of replacement or movement. In addition, the structure of this installation method is more compact, and a recess can be set on the vehicle body 4 to accommodate the use of the speed control component 1.

[0031] The ability of the speed regulating component 1 to flexibly adjust the friction force is key to its function. A preferred embodiment of this application is as follows: Figure 2-5As shown, the speed control assembly 1 includes a clamping assembly 110 and an adjusting block 120; the clamping assembly 110 is mounted on the platform plate 3, and a receiving cavity 112 is provided at the end of the clamping assembly 110 near the vehicle body 4. The adjusting block 120 is disposed in the receiving cavity 112 and rolls in contact with the vehicle body 4; the clamping assembly 110 is adapted to adjust the clamping force on the adjusting block 120, thereby changing the rolling friction between the adjusting block 120 and the vehicle body 4.

[0032] It should be understood that the clamping assembly 110 can precisely control the normal pressure between the contact surface of the adjusting block 120 and the vehicle body 4 by changing the clamping force on the adjusting block 120, thereby precisely controlling and adjusting the rolling friction. In the initial stage of movement, when a large displacement is required, the clamping force can be reduced to reduce the rolling friction, and the platform plate 3 can be adjusted more quickly. When precise positioning is required, the clamping force can be increased to obtain a stable low-speed movement effect and precisely adjust the position of the platform plate 3.

[0033] It is understandable that the adjusting block 120 is set in the receiving cavity 112 of the pressing assembly 110. The adjusting block 120 is always in the receiving cavity 112. When the pressing effect of the pressing assembly 110 on the adjusting block 120 decreases, the contact between the adjusting block 120 and the contact surface of the vehicle body 4 decreases. When the pressing of the pressing assembly 110 on the adjusting block 120 completely disappears, the adjusting block 120 can roll freely in the receiving cavity 112, but will not leave the range of the receiving cavity 112. When the pressing assembly 110 generates sufficient pressing force on the adjusting block 120, the adjusting block 120 will be firmly frictionally locked with the vehicle body 4. At this time, the platform plate 3 will be difficult to move relative to the vehicle body 4, and the platform plate 3 will be firmly fixed to the vehicle body 4.

[0034] It should also be noted that by using rolling friction instead of sliding friction, the basic resistance to the movement of the platform plate 3 relative to the vehicle body 4 is significantly reduced. Furthermore, the adjustment of rolling friction is smoother than the adjustment of sliding friction, avoiding the possibility of excessive sliding friction causing jamming. Moreover, the wear caused by sliding friction is much greater than that caused by rolling friction.

[0035] The rapid and precise adjustment of the clamping force of the clamping assembly 110 on the adjusting block 120 is a prerequisite for the flexible and precise adjustment of the friction force of the speed regulating assembly 1. A preferred embodiment of this application is as follows: Figure 2-5As shown, the clamping assembly 110 includes a connecting post 111 and a clamping rod 113; the connecting post 111 has a threaded hole at its center and is fixedly connected to the platform plate 3; the end of the connecting post 111 near the vehicle body 4 has a receiving cavity 112; the receiving cavity 112 communicates with the threaded hole; the clamping rod 113 is threaded into the threaded hole of the connecting post 111, the first end of the clamping rod 113 extends out of the connecting post 111 to the outside to drive the clamping rod 113 to rotate, and the second end of the clamping rod 113 contacts the adjusting block 120.

[0036] It should be noted that the threaded connection between the connecting column 111 and the clamping rod 113 is the core of the clamping force transmission and precise adjustment. This design converts rotational motion into linear motion, and the operator only needs to rotate the clamping rod 113 to make minor adjustments to the clamping force of the adjusting block 120 in the receiving cavity 112. This adjustment method is convenient and has high adjustment accuracy, which can greatly ensure the control of the relative movement speed between the platform plate 3 and the vehicle body 4.

[0037] Understandably, the first end of the clamping rod 113 extends out of the connecting post 111 to the outside so that the operator can directly rotate and adjust the clamping rod 113 by hand. The second end of the clamping rod 113 contacts the adjusting block 120. When the operator rotates and adjusts the clamping rod 113, the clamping rod 113 will generate a larger or smaller clamping force on the adjusting block 120, thereby achieving the adjustment of the rolling friction force.

[0038] It should also be noted that an easy-to-operate drive structure, such as an internal hexagonal hole or a cross slot, can be provided at the first end of the clamping rod 113, which makes it easy for operators to quickly adjust the clamping rod 113 using tools. Using tools makes the adjustment more effortless and precise. A knob or handwheel can also be directly installed at the end, thereby increasing the operating torque radius. No additional tools are needed for effortless operation, which greatly improves the convenience and feel of operation.

[0039] It is also understandable that a scale and digital indicator can be added to the exposed part of the first end of the clamping rod 113, so that the operator can observe the scale and digital indicator corresponding to the screw-in position of the clamping rod 113, thereby judging whether the adjusting block 120 has reached a good clamping position and quantifying the adjustment of the clamping force.

[0040] The shape of the adjusting block 120 should be such that it can provide stable rolling friction. A preferred embodiment of this application is as follows: Figure 3-5 As shown, the shape of the adjusting block 120 is either a sphere or a cylinder.

[0041] It should be noted that when a ball is used as the adjusting block 120, the ball has omnidirectional rolling characteristics. During the rolling friction process between the ball and the vehicle body 4, it can adapt to some minor unevenness or tilt angle on the contact surface of the vehicle body 4, so that the rolling process of the ball has a certain degree of self-adaptability and will not get stuck due to local unevenness of the vehicle body 4.

[0042] It should also be noted that when a cylinder is used as the adjusting block 120, the contact area with the vehicle body 4 is larger, resulting in a more uniform stress distribution and stronger wear resistance, making it more suitable for long-term and frequent use. Furthermore, the rolling direction of the cylinder is clear, providing a certain degree of guidance and helping to maintain the stability of the moving direction of the platform plate 3. Moreover, by selecting cylinders of different diameters and widths, different load-bearing capacities, rolling resistances, and adjustment sensitivities can be obtained for platform vehicles with different needs.

[0043] Understandably, different shapes of adjustment blocks 120 can be selected according to different working conditions. If the working environment is complex, such as uneven ground or vibration, the adjustment block 120 needs to have a certain degree of self-adaptability, so a spherical adjustment block 120 is more suitable. If the working environment is stable and more precise adjustment is required, a cylindrical adjustment block 120 is more suitable.

[0044] When the adjusting block 120 is a sphere or a cylinder, the contact surface form between the clamping rod 113 and the adjusting block 120 will affect the control effect on the adjusting block 120. A preferred embodiment of this application is as follows: Figure 3-5 As shown, the contact surface between the clamping rod 113 and the adjusting block 120 is either a flat surface or an arc-shaped surface.

[0045] It should be noted that when the adjusting block 120 is a sphere or cylinder, if the contact surface between the clamping rod 113 and the adjusting block 120 is a plane, the force transmission is more concentrated. This design is easy to manufacture, has a simple structure and no risk of motion interference, and always has reliable contact with the adjusting block 120. However, during environmental vibration or during operation, due to stress concentration, it is more prone to wear and has poor durability.

[0046] It should also be noted that when the contact surface between the clamping rod 113 and the adjusting block 120 is an arc-shaped surface, the arc-shaped surface can perfectly match the side of a hemisphere or cylinder, and can form a very good contact with the adjusting block 120, avoiding abnormal wear or movement jamming of the adjusting block 120 caused by stress concentration. Furthermore, the arc-shaped surface can, to a certain extent, limit the lateral position of the adjusting block 120, increasing its rotational stability. However, the machining of the arc-shaped surface requires precise matching with the adjusting block 120, making its manufacturing more difficult than that of a planar contact surface. Therefore, the appropriate end face shape of the contact between the clamping rod 113 and the adjusting block 120 can be selected based on different working conditions, taking into account both cost and effectiveness.

[0047] A preferred embodiment of this application, such as Figure 2-5 As shown, the platform plate 3 is movably mounted on the vehicle body 4 via the rolling assembly 2; the side of the vehicle body 4 is provided with a sliding groove, and the rolling assembly 2 rolls and engages with the sliding groove.

[0048] It should be understood that the platform plate 3 needs to be movably installed and able to be horizontally disassembled from the vehicle body 4. Therefore, this is achieved by using the rolling assembly 2 in conjunction with the sliding groove on the side of the vehicle body 4. Although the traditional sliding fit structure can achieve the guiding and separation functions, it has high frictional resistance, which can easily lead to poor movement and increased wear. Moreover, it is difficult for operators to align and disassemble. In this embodiment, the rolling assembly 2 is used in conjunction with the sliding groove on the vehicle body 4, so that sliding friction is transformed into rolling friction, which greatly reduces the resistance. Furthermore, the relative movement speed between the platform plate 3 and the vehicle body 4 can be controlled by the speed regulating assembly 1. The rolling assembly 2 only needs to be able to smoothly achieve the relative movement between the platform plate 3 and the vehicle body 4.

[0049] It is also understandable that the groove structure guides the rolling component 2, preventing it from coming off during operation or being directly impacted by external forces, thus enhancing the overall structural safety.

[0050] The structure and installation of the rolling assembly 2 affect whether the platform plate 3 can move horizontally smoothly on the vehicle body 4. A preferred embodiment of this application, such as... Figure 2-5 As shown, the rolling assembly 2 includes a support member and a rolling member 210; the support member is fixedly installed on the platform plate 3, and the rolling member 210 is installed on the support member and rolls with the groove.

[0051] It should be understood that traditional integral rolling structures are simple in design, but difficult to replace when wear occurs or when adapting to different sized slides. Replacing the entire platform plate 3 is costly and inconvenient to adjust. Therefore, this embodiment adopts a separate form for the support and the rolling element 210, making the rolling element 210 detachable and replaceable. Thus, when the rolling element 210 needs to be replaced due to wear, or to adapt to different slides, only the rolling element 210 needs to be replaced and adjusted, which greatly increases the flexibility of the structure and improves the maintainability and service life of the entire structure.

[0052] It is understandable that the rolling component 2 can be set separately on the platform plate 3 and set separately from the speed regulating component 1; or it can be set together with the speed regulating component 1. Specifically, the support uses a connecting column 111, and the rolling component 210 is set on the support to complete the assembly of the rolling component 2; wherein, the rolling component 2 can be a ball bearing, with the inner ring of the bearing fixed to the second end of the connecting column 111, and the outer ring of the bearing rollingly engaging with the slide groove.

[0053] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A speed control structure for a semi-electric platform vehicle, characterized in that: It includes a platform plate and a speed control assembly; the platform plate is movably mounted on the vehicle body and is adapted to be disassembled by translation relative to the vehicle body; the speed control assembly is located between the vehicle body and the platform plate, and the speed control assembly is used to adjust the frictional force when the platform plate moves along the vehicle body during disassembly, thereby adjusting the disassembly and movement speed of the platform plate.

2. The speed regulating structure of a semi-electric platform truck according to claim 1, wherein: The speed control component is installed on the vehicle body and contacts the platform plate.

3. The speed regulating structure of a semi-electric platform truck according to claim 1, wherein: The speed control component is installed on the platform plate and contacts the vehicle body.

4. The speed regulating structure of a semi-electric platform truck according to claim 3, wherein: The speed regulating component includes a clamping component and an adjusting block; the clamping component is mounted on the platform plate, and a receiving cavity is provided at the end of the clamping component near the vehicle body. The adjusting block is disposed in the receiving cavity and rolls in contact with the vehicle body; the clamping component is adapted to adjust the clamping force on the adjusting block, thereby changing the rolling friction between the adjusting block and the vehicle body.

5. The speed control structure of the semi-electric platform vehicle as described in claim 4, characterized in that: The clamping assembly includes a connecting column and a clamping rod; the connecting column has a threaded hole at its center and is fixedly connected to the platform plate; the end of the connecting column near the vehicle body has a receiving cavity; the receiving cavity communicates with the threaded hole; the clamping rod is threaded into the threaded hole of the connecting column, the first end of the clamping rod extends out of the connecting column to the outside to drive the clamping rod to rotate, and the second end of the clamping rod contacts the adjusting block.

6. The speed regulation structure of the semi-electric platform vehicle as described in claim 5, characterized in that: The shape of the adjustment block is either sphere or cylinder.

7. The speed regulation structure of the semi-electric platform vehicle as described in claim 6, characterized in that: The contact surface between the clamping rod and the adjusting block is either a flat surface or an arc-shaped surface.

8. The speed control structure of the semi-electric platform vehicle as described in any one of claims 5-7, characterized in that: The platform plate is movably mounted to the vehicle body via a rolling assembly; a sliding groove is provided on the side of the vehicle body, and the rolling assembly rolls into the sliding groove.

9. The speed regulation structure of the semi-electric platform vehicle as described in claim 8, characterized in that: The rolling assembly includes a support member and a rolling member; the support member is fixedly installed on the platform plate, and the rolling member is installed on the support member and rolls in cooperation with the groove.

10. The speed regulation structure of the semi-electric platform vehicle as described in claim 9, characterized in that: The support component uses the connecting column.

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