Cab flip structure and vehicle

Abstract

The present invention discloses a cab flipping structure and a car. The cab flipping structure comprises a flipping part, a driving assembly and a transmission mechanism. The flipping part has a fixed end and a movable end which are arranged relatively to each other. The fixed end is installed on the longitudinal beam of the cab, and the movable end is rotatably installed on the front suspension lower support along a left-right axis. The driving assembly is installed on the front suspension lower support. The driving assembly comprises a driving part which can rotate and move. The transmission mechanism comprises a worm wheel and a worm which are meshed with each other. The worm is extended along a front-back direction and is drivingly connected to the driving part. The worm wheel is rotatably arranged along a left-right axis and is drivingly connected to the flipping part. When the driving part rotates, the driving part drives the worm to rotate, and the rotation of the worm drives the worm wheel to rotate, and the worm wheel further drives the flipping part to rotate. Since the worm wheel and the worm have a self-locking function, the flipping part can be stably fixed at a required position. In addition, the cooperation of the worm wheel and the worm is convenient for troubleshooting, which greatly improves the safety of cab flipping and is easy to assemble and operate.

Description

Technical Field

[0001] The invention relates to the technical field of automobiles, and in particular to a cab flipping structure and an automobile. Background Art

[0002] At present, the cabs of mainstream trucks all use hydraulic systems to lift and flip the cabs, so that workers can repair and maintain the engines. The lifting cylinder is arranged on the left side of the cab, and the lifting pump is arranged on the right side of the cab. High-pressure oil pipes are used to connect various oil ports. The above scheme has many types and quantities of system parts, high costs, low assembly efficiency, and many problems at the oil pipe assembly site. At the same time, there are many oil leakage risk points, which are difficult to check and repair. Summary of the invention

[0003] The main purpose of the present invention is to provide a cab flip structure and a car, aiming to solve the problems of high cost, low assembly efficiency, and difficulty in troubleshooting and maintenance of the cab flip structure in the prior art.

[0004] To achieve the above object, the present invention provides a cab flipping structure, comprising:

[0005] The flip part has a fixed end and a movable end arranged opposite to each other, wherein the fixed end is used to be installed on the longitudinal beam of the cab, and the movable end is used to be rotated along the left-right axis and installed on the lower support of the front suspension;

[0006] A driving assembly, used for being mounted on the front suspension lower support, the driving assembly comprising a driving part capable of rotating and moving; and

[0007] The transmission mechanism comprises a worm wheel and a worm that mesh with each other. The worm is extended in the front-back direction and is drivingly connected to the driving part. The worm wheel is rotatably arranged along the left-right axis and is drivingly connected to the flipping part.

[0008] Optionally, the transmission mechanism also includes a rotating part, which has a connecting side end and a transmission side end spaced apart in the front-to-back direction and arranged oppositely in the left-to-right direction, the connecting side end is connected to the worm gear, and the transmission side end is hinged to the middle part of the flip part.

[0009] Optionally, a movable hole is provided in the middle of the flip portion along the left-right direction;

[0010] The transmission side end is provided with a first extension arm extending in the left-right direction, and the first extension arm is inserted into the movable hole.

[0011] Optionally, the movable hole is arranged to extend along the circumference of the worm gear; and / or,

[0012] The flip part includes two flip plates spaced apart in the left-right direction, and the two flip plates are used to be respectively installed on two side surfaces of the cab longitudinal beam that are oppositely arranged in the left-right direction;

[0013] The movable hole is arranged through the two flip plates.

[0014] Optionally, two side walls of the movable hole that are arranged opposite to each other in the front-rear direction are arranged to gradually move away from the end to the middle.

[0015] Optionally, the flip portion is used to be detachably mounted on the cab longitudinal beam; and / or,

[0016] The driving part comprises a driving motor, wherein the driving motor has a driving shaft extending in a front-rear direction, and the driving shaft is drivingly connected to the worm.

[0017] Optionally, during the rotational stroke of the flipping portion, the flipping portion has a flipping limit position and a falling back limit position;

[0018] The cab flipping structure further includes a limiting assembly, which is used to be installed on the front suspension lower support to limit the flipping part to the flipping limit position or the falling back limit position.

[0019] Optionally, the limit assembly includes two position sensors, which are arranged at intervals along the circumference of the worm gear on the front suspension lower support and are respectively arranged corresponding to the overturning limit position and the falling limit position;

[0020] The cab flipping structure also includes a controller, which is electrically connected to the two position sensors and the drive assembly.

[0021] To achieve the above object, the present invention provides a vehicle, comprising the cab flipping structure as described above, wherein the cab flipping structure comprises:

[0022] The flip part has a fixed end and a movable end arranged opposite to each other, wherein the fixed end is used to be installed on the longitudinal beam of the cab, and the movable end is used to be rotated along the left-right axis and installed on the lower support of the front suspension;

[0023] A driving assembly, used for being mounted on the front suspension lower support, the driving assembly comprising a driving part capable of rotating and moving; and

[0024] The transmission mechanism comprises a worm wheel and a worm that mesh with each other. The worm is extended in the front-back direction and is drivingly connected to the driving part. The worm wheel is rotatably arranged along the left-right axis and is drivingly connected to the flipping part.

[0025] Optionally, the vehicle comprises a commercial vehicle.

[0026] In the technical solution of the present invention, the fixed end of the flipping part is installed on the longitudinal beam of the cab, and the movable end of the flipping part is rotatably installed on the lower support of the front suspension along the left-right axis. The worm is connected to the driving part, and the worm wheel is rotatably arranged along the left-right axis and is connected to the flipping part. When the driving part rotates, the driving part drives the worm to rotate, and the rotation of the worm drives the worm wheel to rotate, and the worm wheel then drives the flipping part to rotate. Since the worm wheel and the worm have a self-locking function, the flipping part can be stably fixed in the required position. In addition, the cooperation between the worm wheel and the worm is convenient for troubleshooting, which greatly improves the safety of cab flipping. The assembly is easy to operate, which improves the assembly efficiency and reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 A schematic structural diagram of an embodiment of a cab flip structure provided by the present invention;

[0029] Figure 2 for Figure 1 A partial enlarged schematic diagram in the middle;

[0030] Figure 3 for Figure 1 A schematic diagram of the structure of the cab flip structure at one angle;

[0031] Figure 4 for Figure 1 Structural schematic diagram of the middle cab flip structure from another angle.

[0032] Description of Figure Numbers:

[0033]

[0034]

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that if a directional indication is involved in the embodiment of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] At present, the cabs of mainstream trucks all use hydraulic systems to lift and flip the cabs, so that workers can repair and maintain the engines. The lifting cylinder is arranged on the left side of the cab, and the lifting pump is arranged on the right side of the cab. High-pressure oil pipes are used to connect various oil ports. The above scheme has many types and quantities of system parts, high costs, low assembly efficiency, and many problems at the oil pipe assembly site. At the same time, there are many oil leakage risk points, which are difficult to check and repair.

[0040] In order to solve the above problems, the present invention provides a cab flipping structure and a vehicle. Figure 1 and Figure 4 A specific embodiment of the cab flipping structure provided by the present invention.

[0041] Reference Figures 1 to 3The cab flipping structure 100 includes a flipping part 1, a driving assembly 2 and a transmission mechanism 3. The flipping part 1 has a fixed end 1a and a movable end 1b arranged opposite to each other. The fixed end 1a is used to be installed on the cab longitudinal beam 200, and the movable end 1b is used to be rotatably installed on the front suspension lower support 300 along the left-right axis. The driving assembly 2 is used to be installed on the front suspension lower support 300. The driving assembly 2 includes a rotatable driving part 21. The transmission mechanism 3 includes a worm wheel 31 and a worm 32 that are meshed with each other. The worm 32 is extended in the front-back direction and is drivingly connected to the driving part 21. The worm wheel 31 is rotatably arranged along the left-right axis and is drivingly connected to the flipping part 1.

[0042] In the technical solution of the present invention, the fixed end 1a of the flipping part 1 is installed on the longitudinal beam 200 of the cab, and the movable end 1b of the flipping part 1 is rotatably installed on the front suspension lower support 300 along the left-right axis. The worm 32 is drivingly connected to the driving part 21, and the worm wheel 31 is rotatably arranged along the left-right axis and is transmission-connected to the flipping part 1. When the driving part 21 rotates, the driving part 21 drives the worm 32 to rotate, and the rotation of the worm 32 drives the worm wheel 31 to rotate, and the worm wheel 31 further drives the flipping part 1 to rotate. Since the worm wheel 31 and the worm 32 have a self-locking function, the flipping part can be stably fixed at the required position. In addition, the cooperation between the worm wheel 31 and the worm 32 is convenient for troubleshooting, which greatly improves the safety of cab flipping. The assembly is easy to operate, which improves the assembly efficiency and reduces the cost.

[0043] It should be noted that the worm gear is coaxially arranged with the tilting center of the front suspension of the cab.

[0044] There are many ways to connect the worm wheel 31 to the flip part 1. For example, the flip part 1 can be directly connected to the rotating shaft of the worm wheel 31, so that the flip part 1 can be driven to rotate during the rotation of the worm wheel 31. Figure 1 and Figure 2 In an embodiment of the present application, the transmission mechanism 3 also includes a rotating part 33, and the rotating part 33 has a connecting side end 331 and a transmission side end 332 that are spaced apart in the front-to-back direction and relatively arranged in the left-to-right direction. The connecting side end 331 is connected to the worm gear 31, and the transmission side end 332 is hinged to the middle part of the flipping part 1. Such an arrangement allows the flipping part 1 to rotate smoothly and effectively.

[0045] Specifically, the driving unit 21 includes a driving motor 211, and the driving motor 211 has a driving shaft 2111 extending in the front-to-back direction. The driving shaft 2111 is drivingly connected to the worm 32. With such a configuration, when the driving motor 211 is working, the driving shaft 2111 rotates, thereby driving the worm 32 drivingly connected to the driving shaft 2111 to rotate. The structure is compact and the effect is good.

[0046] Further, refer to Figure 2 as well as Figure 4 A movable hole 11 is penetrated in the middle of the flip part 1 along the left-right direction, and a first extension arm 3321 is extended along the left-right direction at the transmission side end 332. The first extension arm 3321 is inserted into the movable hole 11. In this way, the hinged installation between the rotating part 33 and the flip part 1 is realized through the first extension arm 3321, so as to avoid the rotating part 33 and the flip part 1 being too close to each other, resulting in friction between the two, thereby increasing the resistance of the flipping process.

[0047] Considering that there is also resistance when the worm wheel 31 and the rotating part 33 are too close, in order to solve this problem, the connecting side end 331 of the rotating part 33 is provided with a second extension arm 3311 extending in the left and right directions, and the free end of the second extension arm 3311 is connected to the edge of the worm wheel 31. Such an arrangement makes the interval between the rotating part 33 and the worm wheel 31 large enough to avoid friction between the two. The structure is simple and the effect is good.

[0048] Considering that the first extension arm 3321 may bounce during the flipping of the cab, Figure 4 The movable hole 11 is arranged to extend circumferentially along the worm gear 31. Such an arrangement provides space for the jumping of the first extension arm 3321, so that the flip part 1 moves smoothly and can reduce noise to a certain extent.

[0049] In the actual process of flipping the cab, the rotating part 33 also bounces in the front-to-back direction. Figure 4 By making the two side walls of the movable hole 11 that are relatively arranged in the front-to-back direction gradually move away from the end to the middle, when the first extension arm 3321 jumps along the front-to-back direction following the rotating part 33, the inner wall surface of the movable hole 11 can be avoided, so that the rotating part 33 moves smoothly and noise reduction can be achieved to a certain extent.

[0050] Reference Figure 1 and Figure 3The flip portion 1 includes two flip plates 12 spaced apart in the left-right direction, and the two flip plates 12 are used to be respectively installed on the two side surfaces of the cab longitudinal beam 200 that are oppositely arranged in the left-right direction. The movable hole 11 is arranged through the two flip plates 12. In this way, the first extension arm 3321 is hingedly connected to the two flip plates 12, so that the forces at both ends of the first extension arm 3321 are balanced, and the first extension arm 3321 is prevented from swinging when it moves, and the effect is good.

[0051] Considering that the flip part 1 will have the problem of wear after long-term use, the flip part 1 is made to be detachably installed on the cab longitudinal beam 200. When the flip part 1 is damaged, the flip part 1 can be replaced. In this way, the stability and reliability of flipping are improved, and the effect is good.

[0052] During the flipping process of the flipping part, there are two extreme positions, namely the flipping extreme position and the falling back extreme position. In order to enable the flipping part to accurately stay at the flipping extreme position and the falling back extreme position, in the present application, the cab flipping structure 100 also includes a limit assembly, and the limit assembly is used to be installed on the front suspension lower support 300. The limit assembly limits the movable stroke of the flipping part 1, so that the flipping part 1 can stop at the flipping extreme position and the falling back extreme position respectively, thereby ensuring the reliability of the cab flipping and good effect.

[0053] Specifically, refer to Figure 1 and Figure 2 The limit assembly includes two position sensors 41, which are arranged at intervals along the circumference of the worm gear 31 on the front suspension lower support 300, and are respectively arranged corresponding to the flip limit position and the fall back limit position. The cab flip structure 100 also includes a controller, which is electrically connected to the two position sensors 41 and the drive assembly 2. In this way, during the rotation stroke of the flip part 1, when the flip part 1 rotates to the flip limit position, the flip part 1 contacts the corresponding position sensor 41, and the position sensor 41 sends a first signal to the controller. The controller controls the driving component 2 to stop working according to the first signal, and under the self-locking action of the worm wheel 31 and the worm 32, the flip part 1 is limited and fixed at the current position, which is safe and reliable. During the rotation stroke of the flip part 1, when the flip part 1 rotates to the falling limit position, the flip part 1 contacts the corresponding position sensor 41, and the position sensor 41 sends a second signal to the controller. The controller controls the driving component 2 to stop working according to the second signal, and under the self-locking action of the worm wheel 31 and the worm 32, the flip part 1 is limited and fixed at the current position, which is safe and reliable.

[0054] Further, refer to Figure 2 The transmission mechanism 3 also includes a rotating part 33, and the rotating part 33 has a connecting side end 331 and a transmission side end 332 that are spaced apart in the front-to-back direction and oppositely arranged in the left-to-right direction. The connecting side end 331 is connected to the worm gear 31, and the transmission side end 332 is extended in the left-to-right direction to form a first extension arm 3321, and the first extension arm 3321 is hinged to the middle part of the flip part 1. During the rotation of the flip part 1, the first extension arm 3321 can selectively contact the two position sensors 41. Such an arrangement has a simple structure and is easy to operate.

[0055] The present invention also provides a car, which includes the above-mentioned cab flip structure 100. The specific structure of the cab flip structure 100 refers to the above-mentioned embodiment. Since the car adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by all the technical solutions of all the above-mentioned embodiments, which will not be repeated here one by one.

[0056] Specifically, in the present application, the automobile may include a commercial vehicle. Of course, in other embodiments, the automobile may be selected as needed, and the present application does not limit this.

[0057] In order to enable the cab of the commercial vehicle to flip smoothly, two cab longitudinal beams 200 are usually provided, and the two cab longitudinal beams 200 are arranged at intervals in the left and right directions. By providing two cab flipping structures 100, the two cab flipping structures 100 are respectively arranged corresponding to the two cab longitudinal beams 200. The cab is driven to flip simultaneously by the two cab flipping structures 100, so that the cab is evenly stressed, the movement is smooth, and the effect is good.

[0058] Specifically, in the present application, the commercial vehicle uses the above-mentioned cab flip structure 100 to work as follows:

[0059] When the cab needs to be flipped and lifted, the lifting control button set in the cab of the commercial vehicle is pressed, and the controller controls the drive motor 211 to drive the worm 32 to rotate forward, and the worm 32 drives the worm wheel 31 to rotate forward, and the worm wheel 31 drives the rotating part 33 to rotate forward, so that the first extension arm 3321 set on the rotating part 33 rotates upward to the upper part of the movable hole 11, and drives the flip part 1 to rotate forward, and the flip part 1 drives the cab to flip forward, so as to realize the function of flipping and lifting the cab. When the first extension arm 3321 set on the rotating part 33 contacts the position sensor 41 located at the flip limit position, the controller controls the drive motor 211 to stop working. When the cab needs to be flipped back, the fall control button set in the cab of the commercial vehicle is pressed, and the controller controls the drive motor 211 to drive the worm 32 to rotate in the opposite direction, and the worm 32 drives the worm wheel 31 to rotate in the opposite direction, and the worm wheel 31 drives the rotating part 33 to rotate in the opposite direction, so that the first extension arm 3321 set on the rotating part 33 rotates upward to the lower part of the movable hole 11, and drives the flip part 1 to rotate in the opposite direction, and the flip part 1 drives the cab to flip backward, so as to realize the function of flipping back the cab. When the first extension arm 3321 set on the rotating part 33 contacts the position sensor 41 located at the fall limit position, the controller controls the drive motor 211 to stop working. In addition, when flipping the lifting cab or flipping back the cab, the lifting control button or the fall control button is pressed at any position, and the controller controls the drive motor 211 to stop working, and the cab is safely fixed in the current position by using the self-locking function of the worm wheel 31 and the worm 32 structure.

[0060] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A cab flip structure, characterized in that: include: The flip part has a fixed end and a movable end which are arranged opposite to each other, the fixed end is used to be installed on the longitudinal beam of the cab, the movable end is used to be installed on the lower support of the front suspension by rotation along the left-right axis, the middle part of the flip part is penetrated by a movable hole along the left-right direction, the movable hole is extended along the circumference of the worm gear, and the movable hole is arranged along the two side walls which are arranged opposite to each other in the front-back direction and gradually move away from the end to the middle part; A driving assembly, used for being mounted on the front suspension lower support, the driving assembly comprising a driving part capable of rotating and moving; and The transmission mechanism includes a worm wheel and a worm that mesh with each other, and a rotating part. The worm is extended in the front-to-back direction and is drivingly connected to the driving part. The worm wheel is rotatably arranged along the left-right axis and is drivingly connected to the flipping part. The rotating part has a connecting side end and a transmission side end that are spaced apart in the front-to-back direction and are oppositely arranged in the left-right direction. The connecting side end is connected to the worm wheel. The transmission side end is extended in the left-right direction to form a first extension arm, and the first extension arm is inserted into the movable hole.

2. The cab flip structure according to claim 1, characterized in that: The flip part includes two flip plates spaced apart in the left-right direction, and the two flip plates are used to be respectively installed on two side surfaces of the cab longitudinal beam that are oppositely arranged in the left-right direction; The movable hole is arranged through the two flip plates.

3. The cab flip structure according to claim 1, characterized in that: The flip portion is used to be detachably mounted on the cab longitudinal beam; and / or, The driving part comprises a driving motor, wherein the driving motor has a driving shaft extending in a front-rear direction, and the driving shaft is drivingly connected to the worm.

4. The cab flip structure according to claim 1, characterized in that: During the rotational stroke of the flipping part, the flipping part has a flipping limit position and a falling back limit position; The cab flipping structure further includes a limiting assembly, which is used to be installed on the front suspension lower support to limit the flipping part to the flipping limit position or the falling back limit position.

5. The cab flip structure according to claim 4, characterized in that: The limit assembly includes two position sensors, which are arranged at intervals on the front suspension lower support along the circumference of the worm gear and are respectively arranged corresponding to the overturning limit position and the falling limit position; The cab flipping structure also includes a controller, which is electrically connected to the two position sensors and the drive assembly.

6. A car, characterized in that: It comprises a cab flipping structure as described in any one of claims 1 to 5.

7. The automobile according to claim 6, characterized in that: The vehicle includes a commercial vehicle.

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