Cab rotating device and transportation equipment

Abstract

The utility model relates to the technical field of transportation equipment, in particular to a cab rotating device and transportation equipment. The cab rotating device comprises an upper vehicle body and a cab, and the cab is provided with a control system. The rotating system comprises a rotating driver, a first rotating body, a second rotating body, a first supporting body and a second supporting body, one end of the driver is connected with the cab, and one end of the rotating driver is connected with the first rotating body; one end of the first supporting body is rotatably connected with the cab, the second rotating body is arranged on the first supporting body in a sleeving mode, and the first rotating body is rotatably connected with the second rotating body; one end of the second supporting body is connected with the cab, one end of the second supporting body is slidably connected with the second rotating body, and the second supporting body is provided with a damping part; the lower vehicle body is connected with the other end of the first supporting body. Therefore, the problem that the cab is poor in stability when rotating is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation equipment, and more specifically, to a cab rotation device and a transportation equipment. Background Art

[0002] There are generally two ways for existing transportation equipment to transport goods. One is that the goods are placed at the rear of the cab of the transportation equipment. When the transportation equipment is running, it is equivalent to the cab pulling the goods in the direction of transportation. The other is that the goods are placed in front of the cab of the transportation equipment. When the transportation equipment is running, it is equivalent to the cab pushing the goods in the direction of transportation.

[0003] For the second type of transportation equipment, since the goods are placed in front of the cab of the transportation equipment, when the goods have a certain height, they will block the view of the driver in the cab of the transportation equipment, or the height of the loading and unloading working device in front of the transportation equipment will block the view of the driver in the cab of the transportation equipment, resulting in the view of the cab in the direction of travel being blocked by the goods and the working device, causing accidents such as hitting people and objects by the transportation equipment. In this regard, the prior art provides a transportation equipment with a rotatable cab to solve the above problems. However, when the cab rotates in the prior art, due to the inertia generated by the rotation of the cab, the cab may be eccentric, resulting in the instability of the cab. Summary of the Utility Model

[0004] To solve the problem of poor stability of the cab during rotation, the utility model provides a cab rotation device and a transportation equipment.

[0005] According to the first aspect of the utility model, the utility model provides a cab rotation device, including:

[0006] An upper vehicle body, including a cab, and the cab is provided with a control system;

[0007] A rotation system, including a rotation driver, a first rotating body, a second rotating body, a first support body, and a second support body. One end of the driver is connected to the cab, and one end of the rotation driver is connected to the first rotating body; one end of the first support body is rotatably connected to the cab, the second rotating body is sleeved on the first support body, and the first rotating body is rotatably connected to the second rotating body; one end of the second support body is connected to the cab, one end of the second support body is slidably connected to the second rotating body, and the second support body has a shock absorption part;

[0008] A lower vehicle body, connected to the other end of the first support body.

[0009] According to an embodiment of the present utility model, the rotation system further includes a line distribution disk. The second rotating body is provided with a hollow channel for installing the line distribution disk. The line distribution disk is provided with a first wire passing hole for the oil circuit to pass through and a second wire passing hole for the circuit to pass through; the edge of the wire passing hole is set to be in flexible contact.

[0010] According to an embodiment of the present utility model, the lower vehicle body includes driving wheels, a lower vehicle frame, and a driving actuator. The driving wheels are installed through the lower vehicle frame; the other end of the first support body is connected to the lower vehicle frame; the driving actuator is connected to the driving wheels.

[0011] According to an embodiment of the present utility model, it further includes a controller assembly, and the controller assembly is electrically connected to the control system.

[0012] According to an embodiment of the present utility model, headlamps and front turn signals are provided on both sides of the front of the cab, rear turn and brake combination lamps are provided on both sides of the rear of the cab, and a high-mounted brake lamp is provided on the top of the rear of the cab; multiple said lamps are all electrically connected to the controller assembly.

[0013] According to an embodiment of the present utility model, the rotation system further includes a rotation limiting member. The rotation limiting member is arranged on the second rotating body; the rotation limiting member is provided with a limit sensor, and the limit sensor is electrically connected to the controller assembly in an electrical signal manner.

[0014] According to an embodiment of the present utility model, the first rotating body is located between the cab and the lower vehicle body; the cab is rotatably connected to the first support body through a support disk. One end of the second support body is connected to the support disk, and the other end of the second support body is slidably connected to the second rotating body. There are n second support bodies, where n is equal to or greater than 1 and n is a natural number.

[0015] According to an embodiment of the present utility model, one end of the second support body is provided with a roller or a slider, and the second rotating body is provided with a guiding track for guiding the roller or the slider.

[0016] According to an embodiment of the present utility model, the first rotating body is a rotating gear, the second rotating body is a fixed gear, the diameter of the fixed gear is larger than the diameter of the rotating gear, and the rotating gear is meshed and connected to the fixed gear.

[0017] According to an embodiment of the present utility model, the support disk is connected to the first support body through a bearing connection.

[0018] According to the second aspect of the present utility model, the present utility model provides a transportation device, including the above-mentioned cab rotating device.

[0019] To solve the problem of poor stability of the cab during rotation, the utility model has the following advantages:

[0020] 1. In the utility model, one end of the second support body is fixedly connected to the bottom of the cab, and the other end of the second support body is slidably connected to the second rotating body, so that the weight of the cab is borne by the second support body, providing reliable support for the cab and improving the structural stability. At the same time, through the setting of the second support force, the load-bearing force of the first support column is reduced, so that when the cab rotates relative to the first support body, the hard contact between the cab and the first support column is reduced. Through the setting of the shock-absorbing part of the second support body, the situation that the cab may shake during the rotation of the cab is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Shows a schematic structural diagram of a rotation system of an embodiment;

[0022] Figure 2 Shows a schematic top view structural diagram of a traveling vehicle base and a rotation system of an embodiment;

[0023] Figure 3 Shows a schematic top view structural diagram of a transportation device of an embodiment;

[0024] Figure 4 Shows a schematic side view structural diagram of a transportation device of an embodiment.

[0025] Reference numerals: 100 - cab; 110 - headlamp; 120 - front turn signal lamp; 130 - steering brake combination lamp; 140 - high - level brake lamp; 200 - rotation system; 210 - rotation driver; 220 - first rotating body; 230 - second rotating body; 240 - first support body; 250 - second support body; 260 - line distribution panel; 270 - rotation limit member; 280 - bearing; 300 - lower vehicle body; 310 - traveling wheel; 3110 - drive wheel; 320 - lower vehicle frame; 330 - traveling driver; 340 - steering wheel; 400 - cargo handling control assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Now, the content of the present disclosure will be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those of ordinary skill in the art to better understand and thus implement the content of the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0027] As used herein, the term "comprising" and its variants are to be construed as open-ended terms meaning "including but not limited to". The term "based on" is to be construed as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be construed as "at least one embodiment". The term "another embodiment" is to be construed as "at least one other embodiment". The orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc. are based on the orientation or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. Also, in addition to being able to represent orientation or positional relationships, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific circumstances. In addition, the terms "mounted", "arranged", "provided with", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral structure; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, or there may be internal communication between two devices, elements or components. 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. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "a plurality of" is two or more.

[0028] According to a first aspect of the present utility model, the present embodiment discloses a cab 100 rotating device, as Figures 1-4 shown, which may include:

[0029] An upper vehicle body, including a cab 100, wherein the cab 100 is provided with a control system;

[0030] The rotating system 200 includes a rotating drive 210, a first rotating body 220, a second rotating body 230, a first support body 240, and a second support body 250. One end of the drive is connected to the cab 100, and one end of the rotating drive 210 is connected to the first rotating body 220. One end of the first support body 240 is rotatably connected to the cab 100. The second rotating body 230 is sleeved on the first support body 240, and the first rotating body 220 is rotatably connected to the second rotating body 230. One end of the second support body 250 is connected to the cab 100, and one end of the second support body 250 is slidably connected to the second rotating body 230. The second support body 250 has a shock-absorbing portion.

[0031] The lower vehicle body 300 is connected to the other end of the first support body 240.

[0032] In this embodiment, from top to bottom, the cab 100, the steering system, and the lower vehicle body 300 are connected in sequence. One end of the first support body 240 is rotatably connected to the bottom of the cab 100, and the other end of the first support body 240 is fixedly connected to the lower vehicle body 300. The lower vehicle body 300 is electrically connected to the control system, so that the driving, steering, etc. of the lower vehicle body 300 can be controlled through the control system. The second rotating body 230 is sleeved on the outer periphery of the first support body 240 and is fixedly connected to the first support body 240. One end of the rotating drive 210 is connected to the bottom of the cab 100, and the other end, i.e., the output end, of the rotating drive 210 is connected to the first rotating body 220. The first rotating body 220 is rotatably connected to the second rotating body 230. The rotation limiting member 270 is provided on the second rotating body 230. When the rotating drive 210 operates, the rotating drive 210 can drive the first rotating body 220 to rotate, and the first rotating body 220 drives the cab 100 to rotate around the second rotating body 230 in a clockwise or counterclockwise direction with the first support body 240 as the axis. The cooperation of the rotating drive 210, the first rotating body 220, and the second rotating body 230 realizes the rotation of the cab 100. One end of the second support body 250 is fixedly connected to the bottom of the cab 100, and the other end of the second support body 250 is slidably connected to the second rotating body 230, so that the weight of the cab 100 is stressed through the second support body 250, providing reliable support for the cab 100 and improving the structural stability. At the same time, through the setting of the second support force, the load-bearing force of the first support column is reduced, so that when the cab 100 rotates relative to the first support body 240, the hard contact between the cab 100 and the first support column is reduced. Through the setting that the second support body 250 has a shock-absorbing portion, the situation where the cab 100 may shake during the rotation of the cab 100 is reduced.

[0033] In some embodiments, both the first rotating body 220 and the second rotating body 230 are gears. In a gear meshing manner, the first rotating body 220 rotates around the second rotating body 230 to enable the cab 100 to rotate.

[0034] In some embodiments, the second support body 250 is a telescopic rod.

[0035] According to an embodiment of the present invention, as Figure 1 shown, the first rotating body 220 is a rotating gear, the second rotating body 230 is a fixed gear, the diameter of the fixed gear is greater than the diameter of the rotating gear, and the rotating gear is meshed and connected with the fixed gear.

[0036] In this embodiment, a structural arrangement capable of rotating the cab is provided.

[0037] In some embodiments, the first rotating body 220 is a rotating disk, the second rotating body 230 is a fixed disk, a guiding slot is provided on the outer edge of the fixed disk, and a clamping portion cooperating with the guiding slot is provided on the outer edge of the rotating disk; or a guiding slot is provided on the outer edge of the rotating disk, and a clamping portion cooperating with the guiding slot is provided on the outer edge of the fixed disk. Through the cooperation of the clamping portion and the guiding slot, the rotation driver 210 can drive the rotating disk to rotate around the fixed disk, thereby driving the cab to rotate.

[0038] According to an embodiment of the present invention, as Figure 1 shown, the rotation system 200 further includes a line distribution disk 260. A hollow channel for installing the line distribution disk 260 is provided on the second rotating body 230. The line distribution disk 260 is provided with a first wire passing hole for an oil circuit to pass through and a second wire passing hole for an electric circuit to pass through; the edge of the wire passing hole is set as a flexible contact.

[0039] In this embodiment, the outer peripheral edge of the distribution disk is fixed to the inner side wall of the hollow channel. With the line distribution disk 260 provided with the first wire passing hole and the second wire passing hole for the electric circuit and the oil circuit to pass through respectively, the line distribution disk 260 can dredge multiple lines, avoiding multiple lines from being wound around each other, resulting in some lines being broken or out of contact and unable to perform related functions, affecting the use. Through the setting that the edge of the wire passing hole is set as a flexible contact, the situation of wear after the wire rubs against the edge of the wire passing hole for a long time is reduced, and the service life of the wire is increased.

[0040] In some embodiments, the number of wire passing holes is related to the number of control functions in the control system, further enhancing the function of the line distribution disk 260 in dredging lines.

[0041] In some embodiments, the wire passing hole is one or more of a circular hole or a rectangular hole, preferably a circular hole.

[0042] According to an embodiment of the present utility model, as Figure 2 shown,

[0043] the lower vehicle body 300 includes driving wheels 310, a lower vehicle frame 320, and a driving actuator 330. The driving wheels 310 are installed through the lower vehicle frame 320; the other end of the first support 240 is connected to the lower vehicle frame 320; the driving actuator 330 is connected to the driving wheels 310.

[0044] In this embodiment, the driving actuator 330 is located on the lower vehicle frame 320. The driving actuator 330 and the driving wheels 310 are mechanically connected in a common manner, and the driving actuator 330 drives the driving wheels 310 to travel. In addition to this solution, preferably, the driving actuator 330 is an axle.

[0045] In some embodiments, a brake oil pump is further included; the brake oil pump transmits the braking force to the brake shoe through the brake cylinder, and the brake shoe is linked to the axle housing; when the driver steps on the brake pedal to implement braking, the brake shoe contacts the driving wheels 310 to achieve braking, that is, the brake oil pump provides the energy source for the braking ability of the driving wheels 310. The hydraulic steering system and the hydraulic working system share a hydraulic oil pump, which is divided into two hydraulic oil circuits through a flow dividing valve. One circuit supplies the hydraulic working system; one circuit supplies the hydraulic steering system, which is connected to the steering knuckle through the steering oil pump of the steering system, and the other end of the steering knuckle is connected to the steering wheel 340 to achieve wheel steering. The hydraulic oil pump and the brake oil pump can be installed at appropriate positions on the lower vehicle frame 320.

[0046] In some embodiments, as Figure 4 shown, the driving wheels 310 are driving wheels 3110, the driving wheels are front wheels, and the steering wheels 340 are rear wheels; or the driving wheels 3110 are rear wheels, and the steering wheels 340 are front wheels.

[0047] In some embodiments, the control system further includes a cab rotation control lever, a steering wheel, a brake pedal, and an accelerator pedal. The cab rotation control lever is electrically connected to the rotation actuator 210. By operating the cab rotation control lever, an electrical signal for starting is given to the rotation actuator 210, and the rotation actuator 210 drives the first rotating body 220 to drive the cab 100 to rotate around the second rotating body 230. The steering wheel drives the steering wheels 340 to turn through a hydraulic steering gear. The brake pedal controls the braking of the driving wheels 310 through a brake pump. The accelerator pedal enables the driving actuator 330 to drive the driving wheels 310 to travel through an electrical signal.

[0048] Preferably, the rotation actuator 210 is a rotation drive motor, and the driving actuator 330 is a driving actuator.

[0049] According to an embodiment of the present utility model, it further includes a controller assembly, and the controller assembly is electrically connected to the control system.

[0050] In this embodiment, the controller assembly controls the conversion of forward and reverse signals.

[0051] According to an embodiment of the present utility model, as Figure 4 shown, on both sides of the front part of the cab 100, there are headlamps 110 and front turn signals 120, on both sides of the rear part of the cab, there are rear turn and brake combination lamps 130, and in the middle of the top crossbeam at the rear part of the cab, there is a high-mounted brake lamp 140; all the lamps are electrically connected to the controller assembly.

[0052] In this embodiment, when the cab 100 turns, the indication mode of the vehicle lamps changes. When the controller assembly receives the feedback signal of the position change of the cab 100, the controller assembly controls the lamp switch control system which is provided with switches for controlling various lamps.

[0053] According to an embodiment of the present utility model, as Figure 1 shown, the rotating system 200 further includes a rotation limit member 270, and the rotation limit member 270 is arranged on the second rotating body 230; the rotation limit member 270 is provided with a limit sensor, and the limit sensor is electrically connected to the controller assembly in an electrical signal manner.

[0054] In this embodiment, when the rotation driver 210 works, the rotation driver 210 can drive the first rotating body 220 to rotate, and the first rotating body 220 drives the cab 100 to rotate around the second rotating body 230 in a clockwise or counterclockwise direction with the first support body 240 as the axis until it abuts against the rotation limit member 270. The setting of the rotation limit member 270 limits the rotation of the cab 100, thereby controlling the rotation angle of the cab 100 and also preventing the cab 100 from rotating beyond the required angle.

[0055] In some embodiments, the rotation limiting member 270 is located on the rotation trajectory line of the first rotating body 220, so as to prevent the cab 100 from rotating when the first rotating body 220 abuts against the rotation limiting member 270. Preferably, there are two rotation limiting members 270, and the two rotation limiting members 270 are arranged side by side with the first support body 240, and the first support body 240 is located between the two rotating members, so that the rotatable angle of the cab 100 does not exceed 180°, so that when the cab 100 rotates relative to the lower frame 320, it is avoided that the cab 100 rotates multiple times in the same direction, resulting in the phenomenon of wire winding in the way of wire connection between the cab 100 and the driving system. Preferably, the two directions of the rotation limiting member 270 located on the second rotating body 230 are the two directions in which the cab 100 can move forward.

[0056] According to an embodiment of the present invention, as Figure 1 shown, the first rotating body 220 is located between the cab 100 and the lower vehicle body 300; the cab 100 is rotatably connected to the first support body 240 through a support disc, one end of the second support body 250 is connected to the support disc, and the other end of the second support body 250 is slidably connected to the second rotating body 230. There are n second support bodies 250, where n is equal to or greater than 1 and n is a natural number.

[0057] In this embodiment, through the setting of the support disc, the cab 100 can be driven to rotate relative to the lower vehicle body 300 around the second rotating body 230 through the support disc, further improving the reliability of the rotation of the cab 100. There are n support bodies, further improving the support stability.

[0058] According to an embodiment of the present invention, one end of the second support body 250 is provided with a roller or a slider, and the second rotating body 230 is provided with a guiding track for guiding the roller or the slider.

[0059] In this embodiment, the second support body 250 can not only provide support performance, but also roll or slide relative to the second rotating body 230 when the cab 100 rotates, reducing the contact friction between the two. The setting of the guiding track further improves the rotation stability of the cab 100 and avoids the deviation of the movement track of the second support body during movement.

[0060] In some embodiments, the roller is an elastic roller.

[0061] According to an embodiment of the present invention, the support disc is connected to the first support body 240 through a bearing 280.

[0062] In this embodiment, a method of connecting the support disk to the second rotating body 230 is provided, such that the cab 100 can rotate relative to the second support body 250 through the support disk.

[0063] According to an embodiment of the present utility model, the cab 100 rotating device further includes a cargo loading and unloading control assembly 400. The cargo loading and unloading control assembly 400 is used to control the actions of loading and unloading goods by the cargo loading and unloading mechanism. The cargo loading and unloading mechanism is arranged in front of the cab 100 and is installed at the front part of the lower frame 320. The cargo loading and unloading control assembly 400 includes a lifting control lever, and the lifting control lever is connected to the cargo loading and unloading mechanism through a lifting pump, so as to control the actions of loading or unloading goods.

[0064] According to an embodiment of the present utility model, the controller assembly is powered by a power battery. The power battery is a high-voltage power supply. The controller assembly includes a vehicle control unit, a cab rotation control unit, a brake control unit, a steering control unit, a lifting control unit, and a driving control unit.

[0065] The cab rotation control unit is strongly electrically connected to the rotation driver. The brake control unit is strongly electrically connected to the brake oil pump. The steering control unit is strongly electrically connected to the steering oil pump. The lifting control unit is strongly electrically connected to the lifting pump. The driving control unit is strongly electrically connected to the driving driver 330. The vehicle control unit is connected to other controllers through a DC / DC module (DC / DC converts the high-voltage direct current of the power battery into a low-voltage direct current of 12V to 24V), so as to achieve the conversion from high voltage to low voltage.

[0066] In some embodiments, the first wire passing hole includes a high-voltage wire passing hole and a low-voltage wire passing hole. The high-voltage and low-voltage wire harnesses are separated, which can eliminate the electromagnetic interference between them. Usually, the low-voltage wire line is a flexible wire harness, and the high-voltage wire line is a rigid wire harness. The flexible and rigid wire harnesses are arranged separately, which can also reduce the mechanical friction and damage caused by torsion between the wire harnesses.

[0067] In some embodiments, the limit sensor is electrically connected to the vehicle control unit. When the cab 100 is in the reverse state, the rotation limit sensor sends a signal to the vehicle control unit. The vehicle control unit interprets the reverse signal and sends corresponding reverse control signals to each controller. The signal changes are as follows:

[0068] (1) The gear control signal is reversed: from forward to reverse.

[0069] (2) The turn signal control signal is reversed, and the left and right are interchanged: from left to right.

[0070] (3) The steering motor control signal is reversed: from left to right.

[0071] (4) The front axle drive motor control signal is reversed: from forward to reverse.

[0072] After the above control signal is inverted, the driving habits of the driver can be ensured to remain unchanged.

[0073] According to the second aspect of the present utility model, as Figure 3 and Figure 4 shown, this embodiment discloses a transportation device, including the above-mentioned cab 100 rotating device.

[0074] In this embodiment, based on the height of the goods carried by the transportation device, the cab 100 rotating system 200 can control the rotation of the cab 100 of the transportation device.

[0075] In some embodiments, the transportation device can be a bulldozer, a dump front-tipping truck, a forklift, etc. The forklift can be a counterbalanced forklift, a reach forklift, a side loader or an off-road forklift. When it is a counterbalanced forklift, a reach forklift, a side loader or an off-road forklift, the driving power can be electric or internal combustion engine driven.

[0076] In some embodiments, for example, as Figure 4 shown, usually the front wheels of the forklift are the driving wheels 3110 and the rear wheels are the steering wheels 340. By rotating the cab 100 in a rotatable manner, when the cab 100 rotates to 180°, when the forward vision direction of the cab 100 facing the forklift is the forward direction, the front wheels are the steering wheels 340 and the rear wheels are the driving wheels 3110. The setting of this driving structure is closer to the driving structure setting of an automobile and is more convenient for the forklift to travel.

[0077] Those of ordinary skill in the art can understand that the above embodiments are specific cases for implementing the present disclosure, and in practical applications, various changes can be made to them in form and details without departing from the scope of the present disclosure.

Claims

1. A cab rotating device, characterized in that: include: The upper vehicle body includes a cab, wherein the cab is provided with a control system; A rotating system, comprising a rotating driver, a first rotating body, a second rotating body, a first supporting body and a second supporting body, wherein one end of the rotating driver is connected to the cab, and one end of the rotating driver is connected to the first rotating body; One end of the first support body is rotatably connected to the cab, the second rotating body is sleeved on the first support body, and the first rotating body and the second rotating body are rotatably connected; One end of the second support body is connected to the cab, one end of the second support body is slidably connected to the second rotating body, and the second support body has a shock absorbing part; The lower vehicle body is connected to the other end of the first supporting body.

2. A cab rotating device according to claim 1, characterized in that: The rotating system also includes a line distribution plate, the second rotating body is provided with a hollow channel for installing the line distribution plate, the line distribution plate is provided with a first line hole for the oil circuit to pass through and a second line hole for the circuit to pass through; the edge of the line hole is set to be flexible contact.

3. The cab rotating device according to claim 1, characterized in that: The lower vehicle body comprises a running wheel, a lower frame and a running drive, wherein the running wheel is installed through the lower frame; the other end of the first support body is connected to the lower frame; and the running drive is connected to the running wheel.

4. The cab rotating device according to claim 1, characterized in that: It also includes a controller assembly, which is electrically connected to the control system.

5. The cab rotating device according to claim 4, characterized in that: The front sides of the cab are provided with headlights and front turn signals, the rear sides of the cab are provided with rear turn brake combination lights, and the top of the rear of the cab is provided with a high-mounted brake light; all of the lights are electrically connected to the controller assembly.

6. The cab rotating device according to claim 4, characterized in that: The rotation system further comprises a rotation limiter, which is arranged on the second rotating body; the rotation limiter is provided with a limit sensor, and the limit sensor is electrically connected to the controller assembly.

7. The cab rotating device according to claim 1, characterized in that: The first rotating body is located between the cab and the lower body; the cab is rotatably connected to the first supporting body through a supporting plate, one end of the second supporting body is connected to the supporting plate, and the other end of the second supporting body is slidably connected to the second rotating body, and there are n second supporting bodies, where n is equal to or greater than 1, and n is a natural number.

8. The cab rotating device according to claim 7, characterized in that: A roller or a slider is disposed at one end of the second support body, and a guide path for guiding the movement of the roller or the slider is disposed at the second rotating body.

9. The cab rotating device according to claim 8, characterized in that: The support plate is connected to the first support body through a bearing.

10. The cab rotating device according to claim 1, characterized in that: The first rotating body is a rotating gear, and the second rotating body is a fixed gear. The diameter of the fixed gear is greater than the diameter of the rotating gear, and the rotating gear is meshed and connected with the fixed gear.

11. A transport device, characterized in that: It comprises the cab rotation device as claimed in any one of claims 1-10.

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