Forklift truck capable of adjusting the attitude of the load and method of use thereof

Abstract

The application discloses a forklift capable of adjusting the posture of goods and a use method thereof, and relates to the technical field of forklifts. The forklift comprises a forklift body, a telescopic arm arranged on the forklift body, a goods fork arranged on the telescopic arm, and a gravity center adjusting mechanism arranged between the telescopic arm and the goods fork. The gravity center adjusting mechanism comprises a connecting arm rotatably connected to the end of the telescopic arm, wherein the rotating axis of the connecting arm is arranged along the length direction of the telescopic arm, and the goods fork is connected to the connecting arm. The gravity center adjusting mechanism further comprises a support and a supporting seat. The support is fixedly arranged on the connecting arm, the end of the telescopic arm is fixedly connected with the supporting seat, a power component one is arranged between the support and the supporting seat, the two ends of the power component one are hingedly connected to the support and the supporting seat, and the power component one is telescopic to drive the connecting arm to rotate. The gravity center adjusting mechanism is arranged to keep the goods in a horizontal state when the forklift body is used to transport goods along a slope in an S-shaped mode, thereby solving the problem that the goods are prone to tilting and falling when the goods are transported on a slope.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forklifts, in particular to a forklift capable of adjusting the posture of goods and a use method thereof. BACKGROUND

[0002] The telescopic arm forklift, also known as a telescopic arm forklift or a telescopic arm loading and unloading vehicle, is an industrial device with a telescopic arm, mainly used for material handling and loading and unloading operations. This forklift combines the functions of traditional forklifts and cranes, has excellent flexibility and expandability, and is widely used in construction sites, warehouses, logistics centers and farms, etc. The telescopic arm forklift not only can transport goods like a traditional forklift, but also can perform high-altitude operations and transport goods over long distances through the telescopic arm. The design of the telescopic arm allows the operator to operate flexibly in a small space, and also can extend the arm distance for high-altitude or long-distance transportation when needed. Due to the design and versatility of functions, the telescopic arm forklift can work efficiently in various complex and variable environments, including rough terrain.

[0003] At present, when transporting goods by a telescopic arm forklift, if the goods are heavy, the telescopic arm forklift cannot directly travel along a straight line from the slope to the top of the slope, so the telescopic arm forklift needs to travel along the slope in an S shape. At this time, the telescopic arm forklift is prone to tilting during travel on the slope, which can cause the goods to tilt and fall during climbing. Therefore, the prior art usually uses side stop structures on both sides of the goods fork to clamp and fix the goods on both sides. However, for some long and high goods, it is difficult to fix the goods on both sides by the side stop structure, and there is still a risk of goods falling. At the same time, the addition of the side stop structure can interfere with the loading of the forklift. SUMMARY

[0004] In order to make the forklift move the goods more stably, the present application provides a forklift capable of adjusting the posture of goods and a use method thereof.

[0005] In a first aspect, the present application provides a forklift capable of adjusting the posture of goods, which adopts the following technical solution:

[0006] A forklift capable of adjusting the posture of goods, comprising: a forklift body, a telescopic arm provided on the forklift body, a goods fork provided on the telescopic arm, and a gravity center adjusting mechanism provided between the telescopic arm and the goods fork.

[0007] The gravity center adjusting mechanism comprises a connecting arm, the connecting arm is rotationally connected at the end of the telescopic arm, the rotation axis of the connecting arm is arranged along the length direction of the telescopic arm, and the fork shelf is connected with the connecting arm; the gravity center adjusting mechanism further comprises a support, the support is fixedly arranged on the connecting arm, the end of the telescopic arm is fixedly connected with a supporting seat, a power component one is arranged between the support and the supporting seat, and the two ends of the power component one are respectively hinged on the support and the supporting seat; the power component one is telescopic to drive the connecting arm to rotate.

[0008] Optionally, an arc-shaped limiting groove is formed on the supporting seat, and the support is slidingly arranged in the limiting groove.

[0009] Optionally, the connecting arm is hinged with the fork shelf, the rotation axis of the fork shelf is arranged along the horizontal direction, and an inclination component for driving the fork shelf to rotate is further arranged on the connecting arm, the telescopic end of the inclination component is hinged with the fork shelf, and the fixed end is fixedly connected with the connecting arm.

[0010] Optionally, the fork shelf comprises a fork frame and a fork arm, the fork frame is hinged with the connecting arm, the fork arm is mounted on the fork frame, and a telescopic mechanism is arranged in the fork arm, the telescopic mechanism is used for fixing the fork arm with a tray when the fork arm is inserted into a tray hole formed on the tray.

[0011] Optionally, the telescopic mechanism comprises a power component two, the power component two is mounted in the fork arm, a telescopic plate is slidingly arranged in the fork arm along the horizontal direction, the telescopic plate is slidingly extended or retracted into the fork arm, one end of a hinged arm is hinged with the output end of the power component two, and the other end of the hinged arm is hinged with the telescopic plate.

[0012] Optionally, a horizontal adjusting mechanism is arranged on the connecting arm, the horizontal adjusting mechanism comprises a connecting seat, the connecting seat is hinged at the end of the connecting arm, a lead screw is rotationally connected on the connecting seat, the rotation axis of the lead screw is arranged along the horizontal direction, a sliding seat is connected with the lead screw through a lead screw nut, and the sliding seat is slidingly connected on the connecting seat along the horizontal direction; a power component three for driving the lead screw to rotate is further arranged on the connecting seat, and the fork shelf is fixedly mounted on the sliding seat.

[0013] Optionally, an angle adjusting mechanism is arranged on the fork frame, a fork arm seat is fixedly arranged on the fork shelf, the angle adjusting mechanism comprises a power component four, the power component four is mounted in the fork arm seat, a rack is mounted on the output end of the power component four, and the power component four is used for driving the rack to slide along the horizontal direction; a connecting shaft is rotationally arranged in the fork arm seat, the fork arm is rotationally connected with the fork wall seat through the connecting shaft; a gear is coaxially fixedly arranged on the connecting shaft, and the rack is engaged with the gear.

[0014] In the second aspect, the application provides a use method of the fork truck capable of adjusting the posture of the goods, and the following technical scheme is adopted:

[0015] A use method of a fork truck capable of adjusting the posture of goods, comprising the following steps:

[0016] S1, the forklift body is operated to drive, the fork arm is inserted into the tray hole, at this time, the angle between the side edge of the fork arm and the side wall of the tray hole is detected through the angle adjusting mechanism, and the fork arm is adjusted through the angle adjusting mechanism to make the side edge of the fork arm parallel to the side wall of the tray hole;

[0017] S2, the position of the fork arm in the tray hole is detected through the transverse adjusting mechanism, and the fork arm is adjusted to the center position of the tray hole;

[0018] S3, then the telescopic mechanism drives the telescopic plate to extend, the fork arm is fixed with the tray, and the forklift body is controlled to lift the goods;

[0019] S4, the forklift body is controlled to drive along the slope in an S shape, and in the driving process, the inclination state of the forklift body is detected through the gravity center adjusting mechanism, and the goods are adjusted to a horizontal state.

[0020] In summary, the present application has the following beneficial technical effects:

[0021] The gravity center adjusting mechanism is arranged, so that when the forklift body drives along the slope in an S shape to transport goods, the goods are always kept in a horizontal state, and the problem that the goods are inclined and fall off when transporting goods on the slope is solved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0023] Figure 2 It is a schematic diagram of the working state structure of the gravity center adjusting mechanism of the present application;

[0024] Figure 3 It is a schematic diagram of the state structure of the forklift body in the driving process of the present application;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the fork rack and the tray of the present application;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the telescopic mechanism in the working state of the present application;

[0027] Figure 6 It is a schematic diagram of the structure of the telescopic mechanism in the working state of the present application;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the transverse adjusting mechanism of the present application Figure 1 ;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the transverse adjusting mechanism of the present application Figure 2 ;

[0030] Figure 9 A perspective view of the angle adjusting mechanism of the present application;

[0031] Figure 10 A sectional view of the angle adjusting mechanism of the present application;

[0032] Figure 11 A flow chart of the method of the present application.

[0033] Legend of reference signs:

[0034] 1, forklift body; 11, telescopic arm; 12, fork carriage; 121, fork frame; 1211, fork arm seat; 122, fork arm; 2, gravity center adjusting mechanism; 21, sensor one; 22, connecting arm; 23, bracket; 24, supporting assembly; 241, supporting seat; 242, limiting groove; 25, power component one; 3, inclination assembly; 4, pallet; 41, pallet hole; 5, telescopic mechanism; 51, power component two; 52, articulated arm; 53, telescopic plate; 6, transverse adjusting mechanism; 61, sensor two; 62, connecting seat; 63, power component three; 64, lead screw; 65, sliding seat; 7, angle adjusting mechanism; 71, sensor three; 72, power component four; 73, rack; 74, connecting shaft; 75, gear. DETAILED DESCRIPTION

[0035] The following will be described in detail with reference to the accompanying drawings Figures 1-11 The present application will be further described in detail.

[0036] The present application discloses a forklift capable of adjusting the attitude of goods, referring to the accompanying drawings Figures 1 to 3 A forklift with a telescopic arm mechanism, comprising: a forklift body 1, a telescopic arm 11 is arranged on the forklift body 1, a fork carriage 12 is arranged at the end of the telescopic arm 11, and a gravity center adjusting mechanism 2 is arranged at the end of the telescopic arm 11, the gravity center adjusting mechanism 2 is used for adjusting the gravity center of goods;

[0037] The gravity center adjusting mechanism 2 comprises a connecting arm 22, the connecting arm 22 is articulated at the end of the telescopic arm 11, a sensor one 21 and a controller are arranged on the forklift body 1, the output end of the sensor one 21 is connected with the input end of the controller, a power component one 25 is arranged at the end of the telescopic arm 11, the output end of the power component one 25 is connected with the connecting arm 22, the output end of the controller is connected with the input end of the power component one 25, when the sensor one 21 detects that the forklift body 1 is in an inclined state, the controller adjusts the goods to a horizontal state through the power component one 25.

[0038] It should be noted that the sensor 21 is a tilt sensor, the controller is a PLC controller, and the power component 25 is a hydraulic cylinder. When the forklift body 1 is driving on a slope, the tilt state of the forklift body 1 is detected by the tilt sensor, and then the signal is transmitted to the PLC controller. The gravity adjusting mechanism 2 is controlled by the PLC controller to adjust the forked goods shelf 12 from the tilt state to the horizontal state.

[0039] The implementation scenario is as follows: when the forklift body 1 is driving in an S shape on a slope, the tilt state of the forklift body 1 is detected by the tilt sensor, and then the signal is transmitted to the PLC controller. The hydraulic cylinder is controlled by the PLC controller to push the connecting arm 22 to swing, so that the connecting arm 22 drives the forked goods shelf 12 to swing and adjust from the tilt state to the horizontal state. When the forklift body 1 transports goods on the slope, the goods are always kept in a horizontal state, solving the problem that the goods are prone to tilt and fall when transporting goods on the slope.

[0040] Further, referring to the drawings attached to the specification Figure 2 The gravity adjusting mechanism 2 further comprises a support 23 fixedly arranged on the connecting arm 22. The end of the telescopic arm 11 is provided with a supporting assembly 24. The supporting assembly 24 comprises a supporting seat 241 fixedly arranged on the end of the telescopic arm 11. The power component 25 is arranged on the supporting seat 241, and the output end of the power component 25 is connected with the support 23. A limiting groove 242 is arranged on the supporting seat 241, and the support 23 is slidingly arranged in the limiting groove 242.

[0041] It should be noted that the power component 25 is a hydraulic cylinder, which is hingedly arranged on the supporting seat 241, and the output end of the hydraulic cylinder is hingedly connected with the support 23. When the forklift body 1 is driving in an S shape to transport goods on the slope, when the sensor 21 detects that the forklift body 1 is in a tilt state, the hydraulic cylinder is controlled to push the support 23 to swing, so that the support 23 can drive the forked goods shelf 12 to swing and adjust to a horizontal state through the connecting arm 22.

[0042] Further, referring to the drawings attached to the specification Figure 1 The end of the connecting arm 22 away from the telescopic arm 11 is hingedly connected with the forked goods shelf 12. The connecting arm 22 is provided with an inclination assembly 3. The inclination assembly 3 is arranged on the connecting arm 22, and the output end of the inclination assembly 3 is connected with the forked goods shelf 12.

[0043] It should be noted that the inclination assembly 3 is a hydraulic cylinder, which is used to push the forked goods shelf 12 to swing to a required inclination angle when the goods are inserted, taken out or placed down.

[0044] In the above technical solution, when the fork carriage 12 picks up the goods, the current tray 4 is usually provided with a tray hole 41 to insert the fork arm 122 of the fork carriage 12 into the tray hole 41, and then pick up the goods for transportation, and the current tray hole 41 is usually large to facilitate the operator to insert the fork arm 122 into the tray hole 41, but when the center of gravity adjusting mechanism 2 adjusts the center of gravity of the goods, it needs to adjust the center of gravity again after detecting that the goods are inclined, but when the goods are inclined, the tray 4 and the goods will slide on the fork arm 122 due to the large tray hole 41, although the center of gravity adjusting mechanism 2 can adjust the goods to a horizontal state, but due to the sliding of the goods when inclined, the center of gravity of the goods and the center of gravity of the fork carriage 12 are inconsistent, thereby causing the goods to easily slide and fall, therefore, the present application provides a telescopic mechanism 5 to fix the fork arm 122 and the tray 4 after the fork arm 122 is inserted into the tray hole 41 to solve the above problems.

[0045] Specifically, referring to the description attached Figures 4 to 6 The fork carriage 12 includes a fork frame 121 and a fork arm 122, the fork arm 122 is installed on the fork frame 121, the fork arm 122 is provided with a telescopic mechanism 5, the telescopic mechanism 5 is used to fix the fork arm 122 and the tray 4 when the fork arm 122 is inserted into the tray hole 41 of the tray 4, the telescopic mechanism 5 includes a power component two 51, the power component two 51 is installed in the fork arm 122, the fork arm 122 is provided with a telescopic plate 53 which slides, the output end of the power component two 51 is hinged with a hinge arm 52, the hinge arm 52 is hinged with the telescopic plate 53, when the fork arm 122 is inserted into the tray hole 41 of the tray 4, the telescopic mechanism 5 drives the telescopic plate 53 to slide out of the fork arm 122 through the power component two 51, so that the telescopic plate 53 contacts and abuts against the tray hole 41.

[0046] It should be noted that the power component two 51 is a hydraulic cylinder, the hinge arm 52 is pushed by the hydraulic cylinder to push the telescopic plate 53 to slide out of the fork arm 122, so that the side wall of the telescopic plate 53 can contact the inner wall of the tray hole 41, and since the fork arm 122 is two, the two fork arms 122 respectively contact and abut against the inner wall of the corresponding tray hole 41, so that the fixing between the fork arm 122 and the tray 4 is realized.

[0047] In the above technical solution, since the operator operates the forklift body 1 to insert the fork arm 122 into the tray hole 41, the operator cannot accurately insert the fork arm 122 into the middle position of the tray hole 41, if there is deviation during operation, when the fork arm 122 is fixed with the tray 4 through the telescopic mechanism 5, since the forklift body 1 is usually heavy, at this time the goods are also heavy, so that after fixing, the center of gravity of the goods and the center of gravity of the fork carriage 12 are inconsistent, therefore, the present application provides a transverse adjusting mechanism 6 to solve the above problems.

[0048] Specifically, referring to the drawings Figure 7 and Figure 8 The end of the connecting arm 22 is provided with a transverse adjusting mechanism 6, the transverse adjusting mechanism 6 comprises a sensor two 61, the output end of the sensor two 61 is connected with the controller, the sensor two 61 is used for detecting the position of the fork arm 122 in the tray hole 41, the transverse adjusting mechanism 6 further comprises a connecting seat 62, the connecting seat 62 is hinged at the end of the connecting arm 22, a power component three 63 is installed on the connecting seat 62, the output end of the controller is connected with the input end of the power component three 63, the output end of the power component three 63 is provided with a lead screw 64, a sliding seat 65 is slidingly arranged on the connecting seat 62, the sliding seat 65 is threadedly connected with the lead screw 64, and the fork shelf 12 is fixedly installed on the sliding seat 65.

[0049] It should be noted that the sensor two 61 is a visual sensor, and the power component three 63 is a motor. The position of the fork arm 122 and the tray hole 41 is detected by the visual sensor, and then the signal is transmitted to the controller. The motor is driven by the controller to rotate the lead screw 64. The threaded connection between the lead screw 64 and the sliding seat 65 allows the fork shelf 12 to be driven by the sliding seat 65 to move transversely to adjust the position, so that the fork arm 122 is adjusted to the middle position of the tray hole 41. Then the fork arm 122 and the tray 4 are fixed by the telescopic mechanism 5, so that the center of gravity of the goods and the fork shelf 12 remains consistent.

[0050] In the above technical solution, since the operator operates the forklift body 1, the fork arm 122 is inserted into the tray hole 41, and the operator also cannot ensure that the fork arm 122 is kept parallel to the tray 4. If the fork arm 122 is inserted into the tray hole 41 at an angle, and because the goods and the forklift body 1 are heavy, the telescopic mechanism 5 cannot ensure that the fork arm 122 is tightly fixed with the tray 4, so that the contact between the fork arm 122 and the inner wall of the tray hole 41 is not tight, the fixing effect is poor, and the goods are likely to shake or slip during transportation, especially when the forklift body 1 drives along the inclined surface in an S shape, which is more likely to cause the goods to slip. Therefore, the present application provides an angle adjusting mechanism 7, so that the fork arm 122 can be kept parallel to the tray 4, and the fork arm 122 can be inserted into the tray hole 41.

[0051] Specifically, referring to the drawings Figure 9 and Figure 10, the fork 121 is provided with an angle adjusting mechanism 7, the angle adjusting mechanism 7 comprises a sensor three 71, an output end of the sensor three 71 is connected with a controller, the sensor three 71 is used for detecting an angle between a side edge of the fork arm 122 and a side wall of the tray hole 41, the fork 121 is fixedly provided with a fork arm seat 1211, the angle adjusting mechanism 7 further comprises a power component four 72, an output end of the controller is connected with an input end of the power component four 72, the power component four 72 is installed in the fork arm seat 1211, a rack 73 is installed at an output end of the power component four 72, a connecting shaft 74 is rotatably arranged in the fork arm seat 1211, an end of the fork arm 122 is fixedly installed on the connecting shaft 74, a gear 75 is fixedly arranged on the connecting shaft 74, and the rack 73 is engaged with the gear 75.

[0052] It should be noted that the sensor three 71 is an angle sensor, and the power component four 72 is a hydraulic cylinder, the angle between the fork arm 122 and the side wall of the tray hole 41 is detected by the angle sensor, and a signal is transmitted to the controller, the hydraulic cylinder is driven by the controller to push the rack 73 to move, when the rack 73 moves, the fork arm 122 can be driven to swing and adjust the angle through the engagement transmission of the rack 73 and the gear 75, so that the fork arm 122 and the tray 4 remain in a parallel state, the fork arm 122 is inserted into the tray hole 41, and after the goods are inserted and taken, the fork arm 122 is reset by driving the hydraulic cylinder to drive the rack 73 to reset.

[0053] Referring to the drawings accompanying the specification Figure 11 A use method of a forklift truck with a telescopic arm mechanism, comprising the following steps:

[0054] Step one, the driver drives the forklift truck body 1, controls the fork arm 122 to be inserted into the tray hole 41, at this time, the angle between the side edge of the fork arm 122 and the side wall of the tray hole 41 is detected by the angle adjusting mechanism 7, and the fork arm 122 is adjusted by the angle adjusting mechanism 7, so that the side edge of the fork arm 122 and the side wall of the tray hole 41 are in a parallel state;

[0055] Step two, then the transverse adjusting mechanism 6 detects the position of the fork arm 122 in the tray hole 41, and adjusts the fork arm 122 to be in the center position of the tray hole 41;

[0056] Step three, then the telescopic mechanism 5 drives the telescopic plate 53 to extend, fixes the fork arm 122 and the tray 4, and controls the forklift truck body 1 to fork the goods;

[0057] Step four, the forklift truck body 1 is controlled to drive in an S shape on the slope, in the driving process, the inclination state of the forklift truck body 1 is detected by the gravity center adjusting mechanism 2, and the goods are adjusted to be in a horizontal state.

[0058] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A forklift truck capable of adjusting the attitude of a load, characterized by: include: The forklift body is equipped with a telescopic arm, a fork rack is mounted on the telescopic arm, and a center of gravity adjustment mechanism is provided between the telescopic arm and the fork rack. The center of gravity adjustment mechanism includes a connecting arm, which is rotatably connected to the end of the telescopic arm. The rotation axis of the connecting arm is set along the length of the telescopic arm. The forklift rack is connected to the connecting arm. The center of gravity adjustment mechanism also includes a bracket and a support base. The bracket is fixedly mounted on the connecting arm. The end of the telescopic arm is fixedly connected to the support base. A power component is provided between the bracket and the support base. The two ends of the power component are respectively hinged to the bracket and the support base. The power component extends and retracts to drive the connecting arm to rotate. The support base is provided with an arc-shaped limiting groove, and the bracket is slidably disposed in the limiting groove; The connecting arm is hinged to the forklift rack, and the rotation axis of the forklift rack is set in the horizontal direction; the connecting arm is also provided with an inclination component for driving the rotation of the forklift rack, the telescopic end of the inclination component is hinged to the forklift rack, and its fixed end is fixedly connected to the connecting arm. The forklift rack includes a fork carriage and fork arms. The fork carriage is hinged to the connecting arm, and the fork arms are mounted on the fork carriage. A telescopic mechanism is provided inside the fork arms. The telescopic mechanism is used to fix the fork arms to the pallet when the fork arms are inserted into the pallet holes opened on the pallet.

2. The reach truck of claim 1, wherein: The telescopic mechanism includes a second power component, which is installed inside the fork arm. A telescopic plate is slidably arranged inside the fork arm in the horizontal direction. The telescopic plate slides to extend or retract into the fork arm. One end of a hinged arm is hinged to the output end of the second power component, and the other end of the hinged arm is hinged to the telescopic plate.

3. The reach truck of claim 2, wherein: The connecting arm is provided with a lateral adjustment mechanism, which includes a connecting seat that is hinged to the end of the connecting arm. A lead screw is rotatably connected to the connecting seat, and the axis of rotation of the lead screw is set in the horizontal direction. A slide is connected to the lead screw through a lead screw nut, and the slide is slidably connected to the connecting seat in the horizontal direction. The connecting seat is also provided with a power component for driving the lead screw to rotate. The forklift rack is fixedly installed on the slide.

4. The reach truck of claim 3, wherein: The fork carriage is equipped with an angle adjustment mechanism, and a fork arm seat is fixedly installed on the fork carriage. The angle adjustment mechanism includes a power component four, which is installed in the fork arm seat. A rack is installed at the output end of the power component four, and the power component four is used to drive the rack to slide in the horizontal direction. A connecting shaft is rotatably installed in the fork arm seat, and the fork arm is rotatably connected to the fork arm seat through the connecting shaft. A gear is coaxially fixed on the connecting shaft, and the rack meshes with the gear.

5. A method of using a load posture adjustable forklift truck using the load posture adjustable forklift truck according to claim 4, characterized in that Includes the following steps: S1. Operate the forklift body to move and control the fork arm to insert into the pallet hole. At this time, the angle adjustment mechanism detects the angle between the side of the fork arm and the side wall of the pallet hole, and adjusts the fork arm through the angle adjustment mechanism to make the side of the fork arm parallel to the side wall of the pallet hole. S2. Detect the position of the fork arm within the tray hole using the lateral adjustment mechanism, and adjust the fork arm to the center position of the tray hole; S3. Then the telescopic mechanism drives the telescopic plate to extend, fix the fork arm to the pallet, and control the forklift body to lift the goods. S4. Control the forklift body to travel in an S-shape along the slope. During the journey, the tilt status of the forklift body is detected by the center of gravity adjustment mechanism, and the goods are adjusted to a horizontal state.

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