Forklift

Abstract

The embodiment of the utility model provides a forklift. The forklift comprises a frame, a cab assembly and a swing mechanism. Wherein the slewing mechanism is connected between the cab assembly and the frame, and the cab assembly is rotationally connected to the frame through the slewing mechanism. According to the forklift provided by the embodiment of the invention, under the action of the slewing mechanism, the whole cab assembly can rotate relative to the frame, a driver can operate the forklift more conveniently, the operation accuracy of the forklift is improved, and the influence of an external structure of a cab on the operation view of the driver is avoided.

Description

Technical Field

[0001] This application belongs to the technical field of vehicle manufacturing, and particularly relates to a forklift truck. Background Art

[0002] During the operation process, a forklift truck needs to switch between forward and reverse to complete the handling and stacking of goods. In some working scenarios, such as operating in narrow or limited spaces, the forklift truck requires precise operation positioning to avoid obstacles within the working space.

[0003] In related technologies, in order to improve the operation convenience of forklift trucks in various working scenarios and enhance the operation accuracy, there is a rotatable driving structure on the market. Under this driving structure, the seat and control components in the cab can rotate at a certain angle. However, for this type of forklift truck with a rotating driving structure, the cab itself does not rotate. In the case of only the seat rotating, the external structure of the cab may affect the driver's line of sight, which is not conducive to the driver's driving operation and affects the operation accuracy of the forklift truck. Summary of the Utility Model

[0004] This application aims to provide a forklift truck to solve the problem that the external structure of the cab affects the driver's line of sight when the seat rotates in the existing cab rotating structure of the forklift truck.

[0005] To solve the above technical problems, this application is implemented as follows:

[0006] This application discloses a forklift truck, including: a vehicle frame, a cab assembly, and a slewing mechanism; wherein,

[0007] The vehicle frame includes a mast, and the mast is fixedly connected to the vehicle frame;

[0008] The slewing mechanism is connected between the cab assembly and the vehicle frame, and the cab assembly is rotatably connected to the vehicle frame through the slewing mechanism.

[0009] Optionally, the slewing mechanism includes a slewing bearing, and the slewing bearing includes an inner ring and an outer ring that are rotatably connected. Among them, the inner ring is fixedly connected to the vehicle frame, and the outer ring is fixedly connected to the cab assembly. When the outer ring rotates relative to the inner ring, the cab assembly rotates relative to the vehicle frame.

[0010] Optionally, the cab assembly includes a cab body and a cab bracket. The cab bracket is fixedly connected to the cab body, and the outer ring is fixedly connected to the cab bracket. Among them, a shock-absorbing structure is provided between the cab body and the cab bracket.

[0011] Optionally, the shock absorbing structure includes a plurality of shock absorbers, and the plurality of shock absorbers are arranged at intervals between the cab bracket and the cab body.

[0012] Optionally, the shock absorbing structure includes at least one of a damping shock absorber, a rubber shock absorber, and a spring shock absorber.

[0013] Optionally, a swivel joint is further provided between the vehicle frame and the cab assembly, the swivel joint comprising two ends disposed in opposite directions, one end of the swivel joint being fixedly connected to the vehicle frame, and the other end being rotatably connected to the cab assembly.

[0014] Optionally, the forklift further includes a gantry and a driving mechanism, wherein the gantry is fixedly connected to the frame, the driving mechanism is transmission-connected to the slewing mechanism, and the driving mechanism is used to drive the slewing mechanism to rotate, thereby driving the cab assembly to rotate relative to the frame and the gantry.

[0015] Optionally, the driving mechanism includes a driving motor and a driving gear, the output end of the driving motor is connected to the driving gear, and the driving gear is meshed with the outer ring of the slewing bearing to drive the outer ring of the slewing bearing to rotate under the rotation of the driving motor.

[0016] Optionally, the driving mechanism includes a driving motor, a driving gear and a transmission member, the output end of the driving motor is connected to the driving gear, the driving gear and the outer ring of the slewing bearing are spaced apart, the transmission member is sleeved on the driving gear and the outer ring of the slewing bearing, and is meshed with the driving gear and the outer ring.

[0017] Optionally, the transmission member is a chain or a transmission belt.

[0018] Optionally, the driving motor is a reduction motor.

[0019] Optionally, the forklift further includes a power-loss brake, and the power-loss brake is electrically connected to the drive motor.

[0020] In the embodiment of the present application, the slewing mechanism is connected between the cab assembly and the frame. The cab assembly rotates synchronously with the frame as the slewing mechanism rotates. Under the action of the slewing mechanism, the cab assembly as a whole can rotate relative to the frame, which makes the driver's operation more convenient and helps to improve the operating accuracy of the forklift. The driver's operating environment does not change before and after the rotation of the cab assembly, thereby avoiding the influence of the external structure of the cab on the driver's operating field of view.

[0021] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. Brief Description of the Drawings

[0022] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0023] Figure 1 is a schematic diagram of the forklift structure in an embodiment of the present application;

[0024] Figure 2 is a schematic diagram of the frame structure in an embodiment of the present application;

[0025] Figure 3 is a schematic diagram of the cab assembly structure in an embodiment of the present application;

[0026] Figure 4 is a schematic diagram of the cab bracket structure in an embodiment of the present application;

[0027] Figure 5 is the front view of the cab assembly in an embodiment of the present application;

[0028] Figure 6 is the side view of the cab assembly in an embodiment of the present application;

[0029] Figure 7 is a schematic diagram of the cab assembly structure in an embodiment of the present application;

[0030] Figure 8 is Figure 7 an enlarged schematic diagram of part A in;

[0031] Figure 9 is one of the schematic diagrams of the forklift rotation in an embodiment of the present application;

[0032] Figure 10 is another schematic diagram of the forklift rotation in an embodiment of the present application;

[0033] Figure 11 is the third schematic diagram of the forklift rotation in an embodiment of the present application.

[0034] Reference numerals: 10 - frame, 11 - mast, 12 - fork, 13 - cab mounting seat, 131 - support, 132 - support mounting hole, 133 - motor mounting hole, 20 - cab assembly, 21 - cab body, 22 - cab bracket, 221 - shock absorber mounting part, 30 - slewing mechanism, 31 - slewing bearing, 311 - inner ring, 312 - outer ring, 40 - driving mechanism, 41 - driving motor, 42 - driving gear, 50 - shock absorption structure, 60 - rotary joint. Detailed Description of the Embodiments

[0035] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of protection of the present application.

[0036] The terms "first" and "second" in the description and claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, "and / or" in the description and claims indicates at least one of the connected objects. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0037] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0038] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0039] An embodiment of the present application provides a forklift. The cab of the forklift can rotate integrally relative to the vehicle frame, and the driver in the cab can rotate relative to the vehicle frame following the rotation of the forklift cab. The driver can control the rotation angle of the cab according to the operation requirements of the forklift to improve the accuracy and convenience of forklift operation.

[0040] The following further describes in detail the forklift provided by the embodiment of the present application in conjunction with the accompanying drawings and specific embodiments.

[0041] Refer toFigure 1 , shows a schematic diagram of the forklift structure in an embodiment of the present application, such as Figure 1 As shown, the forklift provided by the present application may include: a frame 10 , a cab assembly 20 , a slewing mechanism 30 and a driving mechanism 40 .

[0042] Specifically, the chassis, power unit, etc. of the forklift are arranged on a frame 10. The frame 10 is also provided with a gantry 11, which is fixedly connected to the front end of the frame 10. A fork 12 is also fixedly connected to the gantry 11, wherein the gantry 11 and the fork 12 together constitute a lifting mechanism of the forklift. In actual applications, the fork 12 is used to carry and transport goods. It is a component of the forklift that is in direct contact with the goods, and the forklift realizes loading, unloading and stacking of goods through the lifting and tilting of the gantry 11.

[0043] The slewing mechanism 30 is connected between the cab assembly 20 and the frame 10, and the slewing mechanism 30 itself can rotate relatively. In actual applications, the cab assembly 20 is rotatably connected to the frame 10 through the slewing mechanism 30. When the slewing mechanism 30 partially rotates, the cab assembly 20 can rotate relative to the frame 10. For example, when a forklift is working in a limited working space, in order to complete the handling of goods, it may be necessary to switch between forward and reverse. When the driver needs to control the forklift to reverse or turn around, the driver's driving vision is poor and the operation is more difficult, which is not conducive to the driver's reverse or U-turn operation. At this time, the driver can control the rotation of the slewing mechanism 30 to rotate the cab assembly 20 as a whole. In this way, the driver can control the forklift to move forward normally and complete the reverse or U-turn operation of the forklift. It should be noted that since the position of the gantry relative to the frame remains unchanged during the rotation of the cab assembly, the cab assembly can complete the rotation in a narrow or limited working space, and the space required for the rotation is relatively low.

[0044] Furthermore, the forklift also includes a drive mechanism 40, which is connected to the slewing mechanism 30 by transmission. When the driver needs to rotate the cab, the drive mechanism 40 can be controlled to work. In actual applications, the drive mechanism 40 can be electrically connected to the control assembly of the cab, and the driver can control the operation of the drive mechanism 40 in the cab. The drive mechanism 40 is connected to the slewing mechanism 30 by transmission to transmit the driving force generated by the drive mechanism 40 to the slewing mechanism 30 to drive the slewing mechanism 30 to rotate. In this process, since the gantry is fixedly connected to the frame 10, when the slewing mechanism 30 rotates, the cab assembly 20 is driven to rotate relative to the frame 10 and the gantry. Setting the drive mechanism 40 can improve the convenience of controlling the rotation of the slewing mechanism 30, thereby facilitating the driver's control of the rotation of the cab.

[0045] It should be noted that in an existing rotary driving structure where only the seat and the control components inside the cab rotate, when the rotary driving structure rotates by 90°, the driver is too close to the side of the cab, which is not conducive to driving operations. Moreover, since there are door frames, door locks, handles, etc. on the side of the cab, it will affect the driver's driving vision. In addition, windshield wipers are generally not installed on the side of the cab, resulting in extremely poor vision when the forklift operates in rainy weather, posing a safety hazard. Compared with the above structure, the cab assembly 20 of the present application rotates relative to the frame 10, and the front glass of the cab always remains directly in front of the driver, facilitating the driver to observe the external environment under any weather conditions, and the structures such as the cab door frame will not affect the driver's vision.

[0046] The slewing mechanism 30 includes a slewing bearing 31. The slewing bearing 31 includes an inner ring 311 and an outer ring 312 that are rotatably connected. Among them, the inner ring 311 is fixedly connected to the frame 10, and the outer ring 312 is fixedly connected to the cab assembly 20. When the outer ring 312 rotates relative to the inner ring 311, the cab assembly 20 rotates relative to the frame 10.

[0047] Specifically, as Figure 2 shown, a cab mounting seat 13 is provided on the frame 10. A support 131 is provided on the cab mounting seat 13. A support mounting hole 132 is formed on the support 131. The inner ring 311 of the slewing bearing 31 is also provided with an inner ring 311 mounting hole. The slewing bearing 31 is connected to the frame 10 by bolts. The bolts can sequentially pass through the mounting holes on the inner ring 311 of the slewing bearing 31 and the support 131, so that the inner ring 311 of the slewing bearing 31 is fixedly connected to the frame 10; further, the outer ring 312 of the slewing bearing 31 is also connected to the cab assembly 20 by bolts, so that the outer ring 312 of the slewing bearing 31 is fixedly connected to the cab assembly 20. The inner ring 311 and the outer ring 312 of the slewing bearing 31 itself are rotatably connected to each other by balls. Therefore, when the inner ring 311 and the outer ring 312 of the slewing bearing 31 rotate relative to each other, the frame 10 and the cab assembly 20 respectively connected to the inner ring 311 and the outer ring 312 of the slewing bearing 31 also rotate relative to each other. In practical applications, the forklift is parked on the ground and the frame 10 is stationary relative to the ground. Therefore, the current cab assembly 20 can rotate in place.

[0048] Among them, the size and load-bearing capacity of the slewing bearing 31 can be selected according to the model specifications of the forklift. For example, for larger forklifts, a slewing bearing 31 with a larger size and load-bearing capacity can be selected, while for smaller forklifts, the requirement for the load-bearing capacity of the slewing bearing 31 is also lower, and a slewing bearing 31 with a smaller size and load-bearing capacity can be selected.

[0049] As Figures 3 to 8As shown, the cab assembly 20 includes a cab body 21 and a cab bracket 22. The cab bracket 22 is fixedly connected to the cab body 21, and the outer ring 312 is fixedly connected to the cab bracket 22. Among them, a shock-absorbing structure 50 is provided between the cab body 21 and the cab bracket 22.

[0050] Referring to Figure 4 , the cab bracket 22 is a rectangular tray structure with a through hole in the middle, which can be used for various pipelines and circuits to pass between the forklift cab body 21 and the vehicle frame 10. A shock-absorbing structure 50 is provided between the cab body 21 and the cab bracket 22. The setting of the shock-absorbing structure 50 can play a certain buffering effect on the vibration generated during the rotation or driving of the cab, making the cab rotation more stable, improving the driving experience, reducing the fatigue of the driver caused by the cab vibration, and avoiding spinal injuries to the driver.

[0051] Optionally, the shock-absorbing structure 50 includes a plurality of shock absorbers, and the plurality of shock absorbers are arranged at intervals between the cab bracket 22 and the cab body 21.

[0052] Exemplarily, as Figure 2 shown, in the embodiment of the present application, four shock absorber mounting parts 221 are respectively arranged at the four corners of the cab bracket 22. The shock-absorbing structure 50 includes four shock absorbers, and the four shock absorbers are respectively arranged on the shock absorber mounting parts 221 at the four corners of the cab bracket 22. In actual application, the number of shock absorbers can be selected according to factors such as the type of shock absorber and the mass of the cab assembly 20. The present application does not make specific limitations on this.

[0053] Optionally, the shock-absorbing structure 50 includes at least one of a damping shock absorber, a rubber shock absorber, and a spring shock absorber.

[0054] Exemplarily, in the embodiment of the present application, a hydraulic damping shock absorber is used as the shock-absorbing structure 50 between the cab assembly 20 and the cab bracket 22. The hydraulic damping shock absorber controls the damping force through liquid, has a compact structure, good corrosion resistance, can provide a large damping force, and has a shorter dynamic response time, better comfort and stability. In addition, a rubber shock absorber or a spring shock absorber can also be selected. Among them, the rubber shock absorber uses the viscoelastic properties of rubber materials to achieve the shock-absorbing effect, can freely determine the shape, and can control the hardness by adjusting the rubber formulation components. It has a small mass, and is more convenient for installation and disassembly; while the spring shock absorber is mainly used to suppress the oscillation when the spring rebounds after absorbing shock and the impact from the road surface. It can achieve a lower natural frequency, obtain a larger static compression amount, has strong corrosion resistance, stable performance, and a long service life. It should be noted that the hydraulic damping shock absorber adopted in the embodiment of the present application is only an example of an embodiment. In actual application, technicians can select the type of the shock-absorbing structure 50 according to actual needs.

[0055] In an embodiment of the present application, a swivel joint 60 is further provided between the vehicle frame 10 and the cab assembly 20. The swivel joint 60 includes two opposite ends. One end of the swivel joint 60 is fixedly connected to the vehicle frame 10, and the other end is rotatably connected to the cab assembly 20.

[0056] To achieve the electrical connection and pipeline connection between the cab assembly 20 and the vehicle frame 10, wires and oil pipes are connected between the cab assembly 20 and the vehicle frame 10. When the cab assembly 20 rotates, the wires and oil pipes connected between the cab assembly 20 and the vehicle frame 10 may become entangled, affecting the service life of the wires and oil pipes. Quality problems of the wires and oil pipes may pose safety risks, and the entanglement of the wires and oil pipes will also affect the operation of the cab. The swivel joint 60 is a tubular structure. The swivel joint 60 may include two opposite ends, and relative rotation may occur between the two ends. The wires and oil pipes can pass through the swivel joint 60 along the axial direction of the swivel joint 60. Since the two ends of the swivel joint 60 are respectively connected to the vehicle frame 10 and the cab assembly 20, when the cab assembly 20 rotates, the two ends of the swivel joint 60 also rotate relative to each other, thereby avoiding the entanglement of the wires and oil pipes passing through the swivel joint 60 and ensuring the structural safety of the wires and oil pipes.

[0057] In an embodiment of the present application, the drive mechanism 40 includes a drive motor 41 and a drive gear 42. The output end of the drive motor 41 is connected to the drive gear 42, and the drive gear 42 meshes with the outer ring 312 of the slewing bearing 31. In practical applications, after the drive motor 41 is powered on, the output shaft rotates, the drive gear 42 rotates synchronously, and drives the outer ring 312 of the slewing bearing 31 to rotate. Since the outer ring 312 of the slewing bearing 31 is fixedly connected to the cab assembly 20, the cab assembly 20 can rotate with the rotation of the outer ring 312 of the slewing bearing 31.

[0058] Optionally, the drive gear 42 can be a cylindrical gear or a bevel gear, and the teeth of the gear can also be straight teeth or helical teeth. The gear structure only needs to be adapted to the outer ring 312 of the slewing mechanism 30. The present application does not specifically limit the structural form of the drive gear 42.

[0059] In addition, the output shaft of the drive motor 41 can also be set in the form of a worm and directly mesh with the outer ring 312 of the slewing bearing 31 to drive the outer ring 312 to rotate when the output shaft rotates. In practical applications, different transmission methods can be selected by oneself, and the present application does not specifically limit this.

[0060] In another embodiment of the present application, the driving mechanism 40 includes a driving motor 41, a driving gear 42 and a transmission member. The output end of the driving motor 41 is connected to the driving gear 42. The driving gear 42 is arranged at an interval from the outer ring 312 of the slewing bearing 31. The transmission member is sleeved on the driving gear 42 and the outer ring 312 of the slewing bearing 31 and meshes with the driving gear 42 and the outer ring 312.

[0061] Specifically, the driving gear 42 and the slewing bearing 31 are arranged at an interval along the radial direction of the slewing bearing 31 and are located in the same plane. The transmission member is simultaneously sleeved on the driving gear 42 and the outer ring 312 of the slewing bearing 31. Since the driving gear 42 is connected to the output shaft of the driving motor 41, after the driving motor 41 is powered on, the output shaft rotates, and the driving gear 42 rotates synchronously. The transmission member meshes with the driving gear 42 and the outer ring 312 of the slewing bearing 31, so as to rotate synchronously and drive the outer ring 312 of the slewing bearing 31 to rotate, and the cab assembly 20 rotates accordingly.

[0062] Wherein, the transmission member in the embodiment of the present application can be a chain or a transmission belt. Specifically, the transmission belt is a synchronous toothed belt, and the inner surface is provided with a tooth shape adapted to the outer ring 312 of the slewing bearing 31 and the driving gear 42.

[0063] It should be noted that compared with the overall rotation of the upper body of large construction machinery such as excavators, only the cab of the forklift in the embodiment of the present application needs to rotate. Therefore, only a relatively small driving force is required to drive the slewing mechanism 30 to rotate. Therefore, the selection range of the driving motor 41 is wider and the type is more flexible.

[0064] Exemplarily, the driving motor 41 includes at least one of a stepper motor, a servo motor, and a hydraulic motor.

[0065] Preferably, a servo motor is selected as the driving motor 41 in the embodiment of the present application. Compared with the stepper motor and the hydraulic motor, the servo motor runs more smoothly, has higher control precision, and also has the advantages of fast dynamic response and fast start-stop speed. Among them, a motor mounting hole 133 is provided on the cab mounting seat 13 of the vehicle frame 10. The motor can pass through the motor mounting hole 133 from the bottom of the vehicle frame 10 and be connected to the cab assembly 20.

[0066] It can be understood that when the driving motor 41 is a servo motor, due to the characteristics of fast start-stop speed and high control precision of the servo motor, the rotation angle of the cab assembly 20 is more accurate and flexible. As Figures 9 to 11 shown, the driver can control the cab assembly 20 to turn left 90°, turn backward 180°, turn right 90°, etc. by controlling the operation of the servo motor, control the forklift to move forward in different directions, and can also control the cab assembly 20 to rotate in any direction and angle to facilitate observing the surrounding environment.

[0067] However, it should be noted that when a servo motor is selected, since the rotational speed of the servo motor is relatively high, while the forklift cab assembly 20 only requires a relatively low rotational speed during rotation. Therefore, in an embodiment of the present application, the drive mechanism 40 is a reduction motor. Among them, the reduction motor can be integrated by a servo motor and a speed reducer. The speed reducer is connected to the output end of the drive motor 41, and the output end of the speed reducer is connected to the drive gear 42. In practical applications, the drive motor 41 is set as a reduction motor. A servo motor with a relatively high rotational speed can be selected in the drive motor 41. The speed reducer can keep the servo motor at a relatively low rotational speed, so that the drive motor 41 can have the advantages of being more stable, having higher control accuracy, faster dynamic response, and faster start-stop speed while meeting the low rotational speed requirements for the rotation of the cab assembly 20. In addition, this reduction motor integrating the speed reducer and the motor adopts an integrated design, which can reduce the occupied space of the drive mechanism 40.

[0068] It should be noted that other types of motors, such as stepper motors, can also be selected for the reduction motor. The present application does not make specific limitations in this regard.

[0069] Optionally, the forklift further includes a power-off brake, and the power-off brake is electrically connected to the drive motor 41. By setting the power-off brake on the drive motor 41, since the power-off brake is electrically connected to the drive motor 41, when the drive motor 41 is powered off and stops running, the power-off brake is also powered off, thereby achieving a braking function to prevent the cab from rotating abnormally due to inertia or external force factors. In specific applications, to ensure the safety of forklift operation, it can also be set programmatically that the rotation of the cab assembly 20 can only be achieved when the forklift stops, that is, the cab assembly 20 cannot rotate during the driving process of the forklift, which can reduce the safety problems caused by the rotation of the cab assembly 20 during the driving of the forklift.

[0070] In practical applications, the brake can be an electromagnetic brake or a hydraulic brake, etc. The brake can be installed on the drive motor 41 later. In addition, a drive motor 41 with a brake can also be directly selected.

[0071] In summary, the forklift provided by the embodiment of the present application has at least the following advantages:

[0072] In the embodiment of the present application, a gantry is fixedly connected to the frame, and in actual application, the gantry can be used to fork and transport goods; the slewing mechanism is connected between the cab assembly and the frame, and since the slewing mechanism is in transmission connection with the drive mechanism, when the drive mechanism is working, the slewing mechanism can rotate under the drive of the drive mechanism, and at the same time, the cab assembly rotates synchronously with the frame as the slewing mechanism rotates, and during the rotation of the cab assembly, since the gantry is fixed relative to the frame, the position of the gantry does not change. The forklift provided in the embodiment of the present application, under the driving action of the drive mechanism and the transmission action of the slewing mechanism, the cab assembly as a whole can rotate relative to the frame, which makes the driver's operation more convenient, helps to improve the operation accuracy of the forklift, and the driver's operating environment does not change before and after the cab assembly rotates, avoiding the influence of the external structure of the cab on the driver's operating field of view; in addition, since the position of the gantry relative to the frame does not change during the rotation of the cab assembly, the cab assembly can complete the rotation in a narrow or limited working space, and the space required for the rotation is relatively low.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0074] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A forklift, characterized in that: include: Frame, cab assembly and slewing mechanism; among them, The slewing mechanism is connected between the cab assembly and the vehicle frame, and the cab assembly is rotatably connected to the vehicle frame via the slewing mechanism.

2. The forklift according to claim 1, characterized in that: The slewing mechanism includes a slewing bearing, and the slewing bearing includes an inner ring and an outer ring that are rotatably connected, wherein the inner ring is fixedly connected to the frame, and the outer ring is fixedly connected to the cab assembly, and when the outer ring rotates relative to the inner ring, the cab assembly rotates relative to the frame.

3. The forklift according to claim 2, characterized in that: The cab assembly includes a cab body and a cab bracket, the cab bracket is fixedly connected to the cab body, and the outer ring is fixedly connected to the cab bracket, wherein a shock absorbing structure is arranged between the cab body and the cab bracket.

4. The forklift according to claim 3, characterized in that: The shock absorbing structure includes a plurality of shock absorbers, and the plurality of shock absorbers are arranged between the cab bracket and the cab body at intervals.

5. The forklift according to claim 4, characterized in that: The shock absorbing structure includes at least one of a damping shock absorber, a rubber shock absorber, and a spring shock absorber.

6. The forklift according to claim 1, characterized in that: A swivel joint is also provided between the vehicle frame and the cab assembly. The swivel joint includes two ends that are arranged in opposite directions. One end of the swivel joint is fixedly connected to the vehicle frame, and the other end is rotatably connected to the cab assembly.

7. The forklift according to claim 2, characterized in that: The forklift also includes a gantry and a driving mechanism, wherein the gantry is fixedly connected to the vehicle frame, the driving mechanism is transmission-connected to the slewing mechanism, and the driving mechanism is used to drive the slewing mechanism to rotate, so as to drive the cab assembly to rotate relative to the vehicle frame and the gantry.

8. The forklift according to claim 7, characterized in that: The driving mechanism comprises a driving motor and a driving gear. The output end of the driving motor is connected to the driving gear. The driving gear is meshed with the outer ring of the slewing bearing to drive the outer ring of the slewing bearing to rotate under the rotation of the driving motor.

9. The forklift according to claim 7, characterized in that: The driving mechanism includes a driving motor, a driving gear and a transmission member. The output end of the driving motor is connected to the driving gear. The driving gear and the outer ring of the slewing bearing are spaced apart. The transmission member is sleeved on the driving gear and the outer ring of the slewing bearing and meshes with the driving gear and the outer ring.

10. The forklift according to claim 9, characterized in that: The transmission member is a chain or a transmission belt.

11. The forklift according to any one of claims 8 to 10, characterized in that: The driving motor is a reduction motor.

12. The forklift according to claim 11, characterized in that: The forklift further includes a power-off brake, which is electrically connected to the drive motor.

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