A control method for adjusting the position of a cab of a double-arm forklift

Abstract

The present invention discloses a control method for adjusting the position of a cab of a double-arm forklift, which belongs to the field of forklifts; the forklift comprises a vehicle body, a cab arranged in the middle of the vehicle body, and a forklift arm assembly arranged parallel to both sides of the cab; the forklift arm assembly comprises a telescopic arm, a hydraulic push rod, and a cargo fork, one end of the telescopic arm is hinged to the vehicle body, and the other end is provided with the cargo fork; the two ends of the hydraulic push rod are respectively hinged to the telescopic arm and the vehicle body, and are used to push the telescopic arm to lift; the forklift also comprises an actuator connected between the cab and the vehicle body, and the forklift is provided with a control module; by acquiring the position of the forklift in real time, the cab posture is automatically adjusted, so that the operator can always obtain the best field of view and operating environment; the control module can quickly respond to the needs of different working areas and adjust the cab posture in real time through steps such as area matching, parameter query, and dynamic correction.

Description

Technical Field

[0001] The invention relates to a control method for adjusting the position of a cab of a double-arm forklift, belonging to the field of forklifts. Background Art

[0002] In traditional forklift operations, the cab position is typically fixed. This design often fails to provide the operator with an optimal field of view and operating environment in complex and changing work environments. For example, in different work areas, varying cargo stacking heights, aisle heights, and work processes require different cab positions to ensure safe and efficient operations. However, traditional forklifts struggle to automatically adjust the cab position to accommodate changes in the work area, increasing the operator's workload, reducing efficiency, and potentially posing safety risks.

[0003] Therefore, developing a system that can accurately adjust the position of the double-arm forklift cab in real time to adapt to the needs of different operating areas and improve the operator's work efficiency and work safety has become an urgent problem to be solved in the current forklift technology field. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention aims to provide a control method for adjusting the position of the cab of a double-arm forklift to solve the problem.

[0005] To achieve the above-mentioned object, the present invention is implemented through the following technical solutions: a control method for adjusting the position of a cab of a double-arm forklift, the forklift comprising a vehicle body, a cab disposed in the middle of the vehicle body, and a forklift arm assembly disposed parallel to both sides of the cab; the forklift arm assembly comprising a telescopic arm, a hydraulic push rod, and a cargo fork, wherein one end of the telescopic arm is hinged to the vehicle body, and the other end is provided with the cargo fork; the two ends of the hydraulic push rod are respectively hinged to the telescopic arm and the vehicle body, for pushing the telescopic arm to lift; the forklift further comprising an actuator connected between the cab and the vehicle body, and the forklift is provided with a control module;

[0006] The control method comprises the following steps:

[0007] According to different working scenarios, the control module controls the forklift to enter different working modes, and the working modes include heavy object handling mode, high-rise stacking / picking mode, and general mode; wherein, in the heavy object handling mode, the cab is controlled to move to the rear end of the vehicle body with the help of the actuator to shift the center of gravity of the vehicle body backward to prevent overturning; in the high-rise stacking / picking mode, the actuator is controlled to lift the cab to the top limit position; in the general mode, the actuator is controlled to lift the cab to a position where the field of view is higher than the telescopic arm.

[0008] Preferably, the forklift is provided with a positioning module for obtaining the position coordinates of the vehicle body in real time; the control module interacts with a cloud database, and the database stores the adjustment parameters of the cab in the working area corresponding to the working mode.

[0009] Preferably, the actuator receives a control instruction for adjusting the cab to a target posture; the control module generates the control instruction by the following steps:

[0010] Step 1: Area matching, comparing the vehicle position with the database to determine the current operating area of ​​the vehicle;

[0011] Step 2: Parameter query, extracting the adjustment parameters of the cab corresponding to the operating area where the vehicle body is located from the database;

[0012] Step 3: Dynamic correction, sending control instructions to the actuator according to the adjustment parameters.

[0013] Preferably, the vehicle body includes an operator operation panel, allowing the operator to manually adjust the posture of the cab or override control instructions.

[0014] Preferably, the vehicle body includes an emergency stop module, which immediately stops the cab adjustment action when an abnormal situation is detected.

[0015] Preferably, the actuator includes a sliding track module provided on the vehicle body and a hydraulic lifting module acting on the cab; the cab is slidably mounted on the sliding track module, and the sliding track module is provided parallel to the telescopic arm.

[0016] Preferably, in the heavy object handling mode, the cab is controlled to move to the rear end of the vehicle body by relying on the sliding track module to move the center of gravity of the vehicle body backward to prevent overturning; in the high-rise stacking / picking mode, the hydraulic lifting module is controlled to lift the cab to the top limit position; in the general mode, the hydraulic lifting module is controlled to lift the cab to a position where the field of view is higher than the telescopic arm.

[0017] Beneficial effects

[0018] The present invention automatically adjusts the cab posture by acquiring the forklift's position in real time, so that the operator can always obtain the best field of view and operating environment; the control module can quickly respond to the needs of different operating areas and adjust the cab posture in real time through steps such as area matching, parameter query, and dynamic correction; this dynamic correction mechanism ensures the flexibility and adaptability of the cab posture to cope with changes in the forklift's working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0020] Figure 1 This is a structural schematic diagram of a control method for adjusting the position of a cab of a double-arm forklift according to the present invention; DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figure 1 The present invention provides a technical solution for a control method for adjusting the position of a cab of a double-arm forklift: the forklift includes a vehicle body 1, a cab 2 arranged in the middle of the vehicle body 1, and a forklift arm assembly 3 arranged parallel to both sides of the cab 2; the forklift arm assembly 3 includes a telescopic arm 31, a hydraulic push rod 32 and a fork 33, one end of the telescopic arm 31 is hinged to the vehicle body 1, and the other end is provided with the fork 33, the two ends of the hydraulic push rod 32 are respectively hinged to the telescopic arm 31 and the vehicle body 1, for pushing the telescopic arm 31 to lift; the forklift also includes an actuator 4 connected between the cab 2 and the vehicle body 1, and the forklift is provided with a control module.

[0023] The control method comprises the following steps:

[0024] According to different working scenarios, the control module controls the forklift to enter different working modes, and the working modes include heavy object handling mode, high-rise stacking / picking mode, and general mode; wherein, in the heavy object handling mode, the cab 2 is controlled to move to the rear end of the vehicle body 1 with the help of the actuator 4 to move the center of gravity of the vehicle body 1 backward to prevent overturning; in the high-rise stacking / picking mode, the actuator 4 is controlled to lift the cab 2 to the top limit position; in the general mode, the actuator 4 is controlled to lift the cab 2 to a position where the field of view is higher than the telescopic arm 31.

[0025] The forklift is provided with a positioning module for obtaining the position coordinates of the vehicle body 1 in real time; the control module interacts with a cloud database, which stores the adjustment parameters of the cab 2 in the working area corresponding to the working mode. In one embodiment, the positioning module adopts the existing high-precision GPS.

[0026] The positioning module accurately captures the real-time position coordinates of the vehicle body 1, providing an accurate data basis for subsequent work area matching and cab 2 adjustment.

[0027] The database stores adjustment parameters of the cab 2 in the operating area corresponding to the working mode, wherein the operating area refers to several transport workshops or different cargo storage areas in the same workshop to correspond to the working mode.

[0028] The database provides a decision-making basis for the control module; through preset adjustment parameters, the control module can quickly respond to the needs of different operating areas and realize automatic adjustment of the cab 2 posture.

[0029] The control module generates control instructions for adjusting the posture of the cab 2 based on the current position of the forklift through steps such as area matching, parameter query, and dynamic correction.

[0030] The control module is responsible for processing the data transmitted by the positioning module and, in combination with the information in the database, generates control instructions for the actuator 4. Through the dynamic correction mechanism, the attitude of the cab 2 can be adjusted in real time to adapt to changes in the working state of the forklift.

[0031] The control module generates control instructions through the following steps:

[0032] Step 1: Area matching, comparing the forklift position with the database to determine the current operating area of ​​the vehicle body 1;

[0033] Step 2: Parameter query, extracting the adjustment parameters of the cab 2 corresponding to the working area where the vehicle body 1 is located from the database;

[0034] Step 3: Dynamic correction, sending a control instruction to the actuator 4 according to the adjustment parameters.

[0035] The actuator 4 comprises a sliding track module mounted on the vehicle body 1 and a hydraulic lift module acting on the cab. The cab 2 is slidably mounted on the sliding track module, which is arranged parallel to the telescopic arm 31. The hydraulic lift module slides along the sliding track module with the cab. Both the sliding track module and the hydraulic lift module are conventional technologies and can be optionally installed depending on the vehicle model. Therefore, these structural features will not be described in detail in this manual.

[0036] The actuator 4 is responsible for converting the control module's control instructions into actual adjustments to the cab 2. Its diverse adjustment methods ensure the flexibility and adaptability of the cab 2's posture, enabling rapid and accurate adjustments to the cab 2's posture, providing the operator with an optimal field of view and operating environment.

[0037] The vehicle body 1 includes an operator operation panel, allowing the operator to manually adjust the posture of the cab 2 or override control instructions.

[0038] The emergency stop module immediately stops the adjustment action of the cab 2 when an abnormal situation is detected (such as failure of the actuator 4 or emergency command from the operator) to ensure the safety of the operator.

[0039] Example 1

[0040] In a large warehouse, forklifts are used to move heavy goods; due to the heavy weight of the goods, the forklift needs to pay special attention to stability during the handling process to prevent it from overturning.

[0041] The positioning module on the forklift obtains the forklift's position coordinates in the warehouse in real time and determines that the forklift's current operating area is the heavy object handling area;

[0042] The control module switches the forklift to heavy-load handling mode based on the positioning information;

[0043] The actuator 4 receives the instruction from the control module and moves the cab 2 to the rear end of the vehicle body 1 through the sliding track module to shift the center of gravity of the vehicle body 1 backward, increase stability and prevent overturning;

[0044] The operator can safely carry out heavy object transport work in the adjusted cab 2.

[0045] Example 2

[0046] In another warehouse, goods are stacked on higher shelves, requiring forklifts for high-level stacking or retrieval operations;

[0047] The positioning module on the forklift obtains the forklift's position in real time and determines that the forklift's current operating area is the high-rise stacking / picking area;

[0048] The control module automatically switches the forklift to high-level stacking / picking mode based on the positioning information;

[0049] The actuator 4 receives the control command and lifts the cab 2 to the top limit position through the hydraulic lifting module, so that the operator can clearly see the goods on the high-level shelves;

[0050] The operator performs high-level stacking or picking operations in the adjusted cab 2.

[0051] Example 3

[0052] In daily warehouse operations, a forklift often needs to shuttle between different operating areas to perform general cargo handling and stacking operations; these operating areas may include low shelf areas, spacious aisle areas, etc., and the visual field requirements of the cab 2 vary.

[0053] When the forklift moves in the warehouse, the positioning module continuously obtains the forklift's position and identifies the forklift's current operating area as a general operating area.

[0054] The control module automatically switches the forklift to normal mode based on the positioning information;

[0055] When the forklift enters the low shelf area, the actuator 4 lifts the cab 2 to a position where the visual field is higher than the telescopic arm 31 through the hydraulic lifting module, ensuring that the operator can clearly see the goods;

[0056] When the forklift enters a wide aisle area, if visibility is sufficient, the cab 2 can remain in its current position or be fine-tuned through the operator's operating panel to suit the operator's comfort.

[0057] The operator can flexibly carry out cargo handling and stacking operations based on the adjustment of the cab 2.

[0058] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0059] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A control method for adjusting the position of a cab of a double-arm forklift, the forklift comprising a vehicle body, a cab disposed in the middle of the vehicle body, and forklift arm assemblies disposed parallel to both sides of the cab; the forklift arm assembly comprising a telescopic arm, a hydraulic push rod, and a cargo fork, wherein one end of the telescopic arm is hinged to the vehicle body, and the cargo fork is disposed at the other end; the ends of the hydraulic push rod are respectively hinged to the telescopic arm and the vehicle body, and are used to push the telescopic arm to lift; the method is characterized in that: The forklift further includes an actuator connected between the cab and the vehicle body, and the forklift is provided with a control module; The control method comprises the following steps: According to different working scenarios, the control module controls the forklift to enter different working modes, including heavy-duty handling mode, high-rise stacking / picking mode, and general mode. In the heavy-duty handling mode, the driver's cab is controlled to move to the rear end of the vehicle body with the aid of the actuator to shift the center of gravity of the vehicle body backward to prevent overturning. In the high-rise stacking / picking mode, the actuator is controlled to lift the driver's cab to the top limit position. In the general mode, the actuator is controlled to lift the driver's cab to a position where the field of view is higher than that of the telescopic arm. The forklift is provided with a positioning module for obtaining the position coordinates of the vehicle body in real time; the control module interacts with a cloud database, and the database stores the adjustment parameters of the cab of the working area corresponding to the working mode; The actuator receives a control instruction for adjusting the cab to a target posture; the control module generates the control instruction by the following steps: Step 1: Area matching, comparing the vehicle position with the database to determine the current operating area of ​​the vehicle; Step 2: Parameter query, extracting the adjustment parameters of the cab corresponding to the operating area where the vehicle body is located from the database; Step 3: Dynamic correction, sending control instructions to the actuator according to the adjustment parameters.

2. A control method for adjusting the position of a cab of a double-arm forklift according to claim 1, characterized in that: The vehicle body includes an operator operation panel that allows the operator to manually adjust the attitude of the cab or override control instructions.

3. The control method for adjusting the position of the cab of a double-arm forklift according to claim 1, characterized in that: The vehicle body includes an emergency stop module, which immediately stops the cab adjustment action when an abnormal situation is detected.

4. The control method for adjusting the position of a cab of a double-arm forklift according to claim 1, characterized in that: The actuator includes a sliding track module arranged on the vehicle body and a hydraulic lifting module acting on the cab; the cab is slidably mounted on the sliding track module, and the sliding track module is arranged parallel to the telescopic arm.

5. The control method for adjusting the position of the cab of a double-arm forklift according to claim 4, characterized in that: In the heavy object handling mode, the cab is controlled to move to the rear end of the vehicle body by relying on the sliding track module to move the center of gravity of the vehicle body backward to prevent overturning; in the high-rise stacking / picking mode, the hydraulic lifting module is controlled to lift the cab to the top limit position; in the general mode, the hydraulic lifting module is controlled to lift the cab to a position where the field of view is higher than the telescopic arm.

Images