Transport machine

Abstract

The transportation machine comprises a vehicle frame, a lifting platform and a plurality of guide mechanisms, the lifting platform is arranged on the vehicle frame in a lifting mode, each guide mechanism comprises a limiting part and a guide part, one end of each guide part is hinged to the corresponding lifting platform, and the limiting parts are fixed to the vehicle frame, connected to the guide parts and used for restraining the motion trail of the guide parts. According to the transportation machine, when the lifting platform inclines, the lifting platform is allowed to rotate relative to the guide part, guide clamping stagnation caused when the lifting platform inclines is effectively avoided, meanwhile, the manufacturing precision of the frame and the lifting platform is reduced, and production is facilitated.

Description

Technical Field

[0001] The present application relates to the field of transport machinery, and in particular to a transport machinery. Background Art

[0002] In order to facilitate the transfer of containers to a dedicated platform during transportation operations, a transportation machine with a lifting function has emerged in the prior art.

[0003] In the prior art, a transport vehicle with a lifting function is driven by multiple oil cylinders to lift the lifting platform, and a guide rod is arranged between the frame and the platform lifting. The guide rod is slidably arranged on the frame and fixedly connected to the platform lifting to guide the platform lifting during the lifting process.

[0004] However, during the operation, there will be a certain deviation in the stroke of multiple cylinders, which will cause the lifting platform to be uneven. Since the guide rod is fixedly connected to the platform lifting, when the above situation occurs, the guide rod will be deflected and stuck on the frame, affecting the lifting of the lifting platform, seriously affecting the life of the guide mechanism and damaging the frame structure. Summary of the invention

[0005] The present application provides a transport machine that can effectively avoid guide jamming caused by the tilt of the lifting platform itself, while also reducing the manufacturing precision of the frame and the lifting platform, thereby facilitating production.

[0006] A further object of the present application is to ensure that the guiding function can be achieved while releasing the rotational freedom of the guiding part according to the arrangement of the driving member.

[0007] In order to achieve the above objectives, this application adopts the following technical solutions:

[0008] The present application provides a transport machine, comprising: a vehicle frame; a lifting platform, the lifting platform being liftably arranged on the vehicle frame; a plurality of guide mechanisms, each guide mechanism comprising a limit portion and a guide portion, one end of the guide portion being hinged to the lifting platform, the limit portion being fixed to the vehicle frame and connected to the guide portion, for constraining the movement trajectory of the guide portion.

[0009] As an optional implementation, the limiting portion has a guide channel, and the guide channel is open along the lifting direction of the lifting platform; the guide portion passes through the guide channel.

[0010] As an optional embodiment, the transport machinery also includes: two groups of driving parts, which are arranged at intervals along the front-to-back direction of the frame and are used to drive the lifting platform to rise and fall; two groups of guide mechanisms, which are respectively recorded as the first guide mechanism and the second guide mechanism; in the first guide mechanism, the inner wall of the guide channel and the guide part are arranged at intervals in the front-to-back direction of the frame.

[0011] As an optional embodiment, the first guide mechanism also includes: a plurality of first lining parts, which are slidably disposed in the guide channel, and are arranged in a gap formed between the inner wall of the guide channel and the guide part in the left and right directions of the frame.

[0012] As an optional implementation, in the first guide mechanism, the distance between the guide channel and the guide portion in the front-rear direction of the frame is set to be greater than or equal to 20 mm and less than or equal to 30 mm.

[0013] As an optional embodiment, the second guide mechanism also includes: a plurality of second lining parts, which are slidably disposed in the guide channel, and are arranged in a gap formed between the inner wall of the guide channel and the guide part in the front-rear direction of the frame; and a plurality of third lining parts, which are slidably disposed in the guide channel, and are arranged in a gap formed between the inner wall of the guide channel and the guide part in the left-right direction of the frame.

[0014] As an optional implementation, the transport machine further includes: a plurality of groups of driving components, each group of driving components is arranged on the frame and connected to the lifting platform to drive the lifting platform to rise and fall.

[0015] As an optional embodiment, the driving member is configured as a power cylinder, which has a main body portion fixed to the frame and a piston portion telescopically arranged on the main body portion, and a distal end of the piston portion is hinged to the lifting platform.

[0016] As an optional embodiment, the transport machinery also includes: a chassis, the chassis includes a first drive axle, a second drive axle, a third drive axle and a fourth drive axle, the first drive axle and the second drive axle are arranged on the front side of the frame, and the third drive axle and the fourth drive axle are arranged on the rear side of the frame; there are two driving members, one of which is arranged between the first drive axle and the second drive axle, and the other drive member is arranged between the third drive axle and the fourth drive axle.

[0017] As an optional implementation, there are two groups of guide mechanisms, one group of guide mechanisms is arranged at the front side of the first drive axle, and the other group of guide mechanisms is arranged at the rear side of the fourth drive axle.

[0018] The transport machinery of the present application has a lifting platform which can be lifted on a frame, one end of a guide part is hinged to the lifting platform, a limiting part is fixed to the frame and connected to the guide part, and the limiting part is used to constrain the movement trajectory of the guide part so that the guide part moves along the lifting direction of the lifting platform. Since one end of the guide part is hinged to the lifting platform, the guide part and the lifting platform can rotate relative to each other, thereby releasing the freedom of rotation of the guide part and the lifting platform. In this way, when the lifting platform itself is tilted (for example, errors occur in the strokes of multiple driving parts, the lifting platform is overloaded, and the road surface is uneven), the lifting platform is allowed to rotate relative to the guide part, thereby effectively avoiding the guide jamming caused by the tilt of the lifting platform itself, and at the same time reducing the manufacturing accuracy of the frame and the lifting platform, thereby facilitating production.

[0019] Furthermore, in the transport machinery of the present application, two sets of driving parts are arranged at intervals along the front-to-back direction of the frame, and are used to drive the lifting platform to rise and fall. In the first guide mechanism, the guide channel and the guide part are arranged at intervals in the front-to-back direction of the frame, and the guide channel and the guide part are arranged at intervals in the front-to-back direction of the frame, and a plurality of lining parts are slidably arranged in the guide channel, and a plurality of lining parts are arranged in the gap formed by the guide channel and the guide part in the left-right direction of the frame, so that the rotational freedom of the guide part in the front-to-back direction in the guide channel can be released, and when the driving stroke of the two sets of driving parts deviates, the guide part can rotate slightly in the guide channel to avoid the guide part from being stuck, and the gap formed by the guide channel and the guide part in the left-to-right direction of the frame can be sealed, so that the guide part will not be offset in the left-to-right direction of the frame, so that the guide part can achieve the guiding function. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application 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 some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of a transport machine when the lifting platform is in a raised state in one embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of a transport machine when the lifting platform is in a descending state in one embodiment of the present application;

[0023] Figure 3 A schematic diagram of the connection relationship between a vehicle frame and a lifting platform in a transport machine according to an embodiment of the present application;

[0024] Figure 4A schematic diagram of the connection relationship between the lifting platform and the guide assembly in a transport machine according to an embodiment of the present application;

[0025] Figure 5 for Figure 4 A magnified view of part A;

[0026] Figure 6 for Figure 4 A top view of

[0027] Figure 7 for Figure 6 A magnified view of part B;

[0028] Figure 8 for Figure 6 Enlarged view of part C.

[0029] Description of reference numerals:

[0030] 100, vehicle frame; 200, lifting platform; 301, first guide mechanism; 302, second guide mechanism; 310, limit portion; 311, guide channel; 320, guide portion; 330, first lining portion; 340, second lining portion; 350, third lining portion; 400, driving member; 410, main body; 420, piston portion; 510, first drive axle; 520, second drive axle; 530, third drive axle; 540, fourth drive axle. DETAILED DESCRIPTION

[0031] In the prior art, a transport vehicle with a lifting function is driven by multiple oil cylinders to lift the lifting platform, and a guide rod is provided between the vehicle frame and the platform lifting platform, and the guide rod is slidably provided on the vehicle frame and fixedly connected to the platform lifting platform to guide the platform lifting platform during the lifting process. However, during the operation process, the strokes of the multiple oil cylinders will have a certain deviation, which will cause the lifting platform to be uneven, and since the guide rod is fixedly connected to the platform lifting platform, when the above situation occurs, the guide rod will be deflected and stuck on the vehicle frame, affecting the lifting of the platform lifting platform.

[0032] In order to overcome the defects in the prior art, the present application provides a transport machinery, in which a lifting platform can be lifted and lowered on a frame, one end of a guide part is hinged to the lifting platform, a limiting part is fixed to the frame and connected to the guide part, and the limiting part is used to constrain the movement trajectory of the guide part. The guide part and the lifting platform can rotate relative to each other, thereby releasing the freedom of rotation of the guide part and the lifting platform. In this way, when the lifting platform itself is tilted (for example, errors occur in the strokes of multiple driving parts, the lifting platform is overloaded, and the road surface is uneven), the lifting platform is allowed to rotate relative to the guide part, thereby effectively avoiding the guide jamming caused by the tilt of the lifting platform itself, and at the same time reducing the manufacturing accuracy of the frame and the lifting platform, which is convenient for production.

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0034] See also Figures 1 to 8 The present application provides a transport machine, which includes a frame 100, a lifting platform 200 and a plurality of guide mechanisms. The lifting platform 200 can be lifted and lowered on the frame 100. Each guide mechanism includes a limit portion 310 and a guide portion 320. One end of the guide portion 320 is hinged to the lifting platform 200. The limit portion 310 is fixed to the frame 100 and connected to the guide portion 320. The limit portion 310 is used to constrain the movement trajectory of the guide portion 320 so that the guide portion 320 moves along the lifting direction of the lifting platform 200.

[0035] The transport machine can be a transport vehicle. The frame 100 is the supporting base of the entire transport machine, and the lifting platform 200 is arranged on the frame 100 and can be driven by a plurality of driving members 400 so that the lifting platform 200 can be lifted and lowered in the height direction to lift and lower containers on the lifting platform 200.

[0036] In the transport machinery of this embodiment, one end of the guide part 320 of the guide mechanism is hinged to the lifting platform 200, the limiting part 310 is fixed to the frame 100 and connected to the guide part 320, and the limiting part 310 is used to constrain the movement trajectory of the guide part 320 so that the guide part 320 moves along the lifting direction of the lifting platform 200.

[0037] With such a design, the constraint guide portion 320 of the limiting portion 310 moves along the lifting direction of the lifting platform 200 when driven by the lifting platform 200, and can guide the lifting platform 200 to avoid deviation of the lifting platform 200 during lifting.

[0038] In addition, since one end of the guide portion 320 is hinged to the lifting platform 200, the guide portion 320 and the lifting platform 200 can rotate relative to each other, thereby releasing the freedom of rotation of the guide portion 320 and the lifting platform 200. In this way, when the lifting platform 200 itself is caused to tilt (for example, errors occur in the strokes of multiple driving members 400, the lifting platform 200 is overloaded, or the road surface is uneven), the lifting platform 200 is allowed to rotate relative to the guide portion 320, effectively avoiding guide jamming caused by the lifting platform 200 itself being tilted, and at the same time reducing the manufacturing precision of the frame 100 and the lifting platform 200, thereby facilitating production.

[0039] In some embodiments, the limiting portion 310 has a guide channel 311, and the guide channel 311 is open along the lifting direction of the lifting platform 200. The guide portion 320 is disposed in the guide channel 311.

[0040] In this embodiment, the limiting portion 310 may be a sleeve, and a through guide channel 311 is provided inside the sleeve. After the sleeve is fixed to the frame 100, the guide channel 311 is opened along the lifting direction of the lifting platform 200, that is, along the height direction of the frame 100. When the lifting platform 200 is lifted or lowered, the guide portion 320 may slide along the guide channel 311, and the guide channel 311 constrains the guide portion 320.

[0041] Furthermore, the transport machine may also include two sets of driving members 400, which are arranged at intervals along the front-rear direction of the frame 100 and are used to drive the lifting platform 200 to move up and down. There are two sets of guide mechanisms, which are respectively recorded as the first guide mechanism 301 and the second guide mechanism 302.

[0042] See also Figure 7 In the first guide mechanism 301 , the inner wall of the guide channel 311 and the guide portion 320 are arranged at intervals in the front-rear direction of the frame 100 .

[0043] In this embodiment, two sets of driving members 400 are arranged at intervals along the front-to-back direction of the vehicle frame 100, and are used to drive the vehicle frame 100 to rise and fall. That is, the two sets of driving members 400 are arranged on the same straight line in the front-to-back direction of the vehicle frame 100, so when the driving strokes of the two sets of driving members 400 deviate, the front-to-back direction of the lifting platform 200 will deviate, while the probability of deviation in the left-to-right direction is relatively small.

[0044] In this embodiment, since the guide portion 320 of the first guide mechanism 301 is disposed in the guide channel 311, and the inner wall of the guide channel 311 of the first guide mechanism 301 and the guide portion 320 are arranged at intervals in the front-to-back direction of the vehicle frame 100, such a design can release the rotational freedom of the guide portion 320 in the front-to-back direction in the guide channel 311. When the driving strokes of the two sets of driving members 400 deviate, the guide portion 320 of the first guide mechanism 301 can rotate slightly in the guide channel 311 to avoid the guide portion 320 from being stuck, thereby avoiding affecting the lifting and lowering of the lifting platform 200.

[0045] See also Figure 7 In some specific embodiments, in the first guide mechanism 301, the distance L between the guide channel 311 and the guide portion 320 in the front-rear direction of the frame 100 is set to be greater than or equal to 20 mm and less than or equal to 30 mm, for example, 20 mm, 23 mm, 25 mm, 28 mm, 30 mm, etc.

[0046] Setting the distance between the guide channel 311 and the guide portion 320 in the front-rear direction of the frame 100 within the above-mentioned range can ensure that the guide portion 320 has sufficient rotation space to release the internal stress generated by the deflection of the lifting platform 200, while preventing the distance between the two from being too large to affect the guiding function of the guide portion 320.

[0047] See also Figure 7 Furthermore, the first guide mechanism 301 may also include a plurality of first lining portions 330, which may be slidably disposed in the guide channel 311, and the plurality of first lining portions 330 are arranged in a gap formed between the inner wall of the guide channel 311 and the guide portion 320 in the left and right directions of the vehicle frame 100.

[0048] From the above analysis, it can be seen that since the two sets of driving members 400 are arranged at intervals along the front-to-back direction of the vehicle frame 100, when the driving strokes of the two sets of driving members 400 deviate, the front-to-back direction of the lifting platform 200 will deviate, while the probability of deviation in the left-right direction is relatively small. In other words, the guide part 320 will hardly release the internal stress generated by the deflection of the lifting platform 200 by swinging left and right.

[0049] In this embodiment, a plurality of first lining portions 330 are slidably disposed in the guide channel 311, and a plurality of first lining portions 330 are arranged in a gap formed between the guide channel 311 and the guide portion 320 in the left-right direction of the frame 100, so that the first lining portions 330 can seal the gap formed between the guide channel 311 and the guide portion 320 in the left-right direction of the frame 100, so that the guide portion 320 will not be offset in the left-right direction of the frame 100, so that the guide portion 320 can achieve a guiding function.

[0050] See also Figure 8 In some embodiments, the second guide mechanism 302 may further include a plurality of second lining parts 340 and a plurality of third lining parts 350. The plurality of second lining parts 340 may be slidably disposed in the guide channel 311, and the plurality of second lining parts 340 may be arranged in a gap formed between the inner wall of the guide channel 311 and the guide part 320 in the front-rear direction of the vehicle frame 100. The plurality of third lining parts 350 may be slidably disposed in the guide channel 311, and the plurality of third lining parts 350 may be arranged in a gap formed between the inner wall of the guide channel 311 and the guide part 320 in the left-right direction of the vehicle frame 100.

[0051] That is, the second guide mechanism 302 completely seals the gap between the inner wall of the guide channel 311 and the guide portion 320 by using the second inner lining portion 340 and the third inner lining portion 350. As can be seen from the above, since the first guide mechanism 301 can release the rotational freedom of its guide portion 320 to achieve the anti-jamming effect, there is no need to provide a spacer on the second guide mechanism 302 to release the rotational freedom of its guide portion 320, which can improve the guiding effect of the second guide mechanism 302.

[0052] In summary, the guide mechanism of the present application can not only completely limit the displacement of the guide part 320 in the left and right directions, but also release the freedom of the guide part 320 to swing in the front and rear directions, allowing the lifting platform 200 to have a certain displacement difference during the lifting process, effectively avoiding the guide jamming caused by asynchronous lifting, and reducing the manufacturing accuracy of the frame 100 and the lifting platform 200.

[0053] In some embodiments, the transport machine may further include a plurality of sets of driving components 400 , each set of driving components 400 is disposed on the frame 100 and connected to the lifting platform 200 to drive the lifting platform 200 to rise and fall.

[0054] Furthermore, the driving member 400 is configured as a power cylinder, which has a main body 410 fixed to the frame 100 and a piston 420 telescopically disposed on the main body 410 , and a distal end of the piston 420 is hinged to the lifting platform 200 .

[0055] The power cylinder is an actuator that converts hydraulic or pneumatic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the movement is smooth. According to the principle of providing pressure, the power cylinder can be divided into two categories: hydraulic cylinder and pneumatic cylinder.

[0056] In some specific embodiments, the power cylinder may be provided as a piston-type hydraulic cylinder, and the extension and retraction of the piston part 420 may be controlled by controlling a relief valve.

[0057] In this embodiment, the end of the piston part 420 can be connected to the ball head of the lifting platform 200, so that relative rotation can be achieved between the piston part 420 and the lifting platform 200. When multiple groups of driving parts 400 are unbalanced, the freedom of connection between the driving parts 400 and the lifting platform 200 is released to prevent the driving parts 400 from bearing the unbalanced load on the lifting platform 200.

[0058] Furthermore, the transport machinery may also include a chassis, and the chassis may also include a first drive axle 510, a second drive axle 520, a third drive axle 530 and a fourth drive axle 540, the first drive axle 510 and the second drive axle 520 are arranged on the front side of the frame 100, and the third drive axle 530 and the fourth drive axle 540 are arranged on the rear side of the frame 100.

[0059] That is, the transport machinery adopts an 8×4 chassis (4 driving steering axles, each driving steering axle is provided with a tire on the left and right, a total of 8 tires), among which the first driving axle 510, the second driving axle 520, the third driving axle 530 and the fourth driving axle 540 all have the function of driving the entire transport machinery forward or backward, and the second driving axle 520 and the third driving axle 530 also take into account the function of driving the entire transport machinery to steer.

[0060] At present, the existing container transport vehicles with jacking function in the market are all 4×4 chassis, with a load-bearing surface height of more than 2m, a high center of gravity, and 18-25 tires (30,000 / piece). Compared with the same rated load, this embodiment adopts an 8×4 chassis, which can reduce the requirements for each tire, lower the overall cost, and has a low center of gravity and better balance.

[0061] Further, there are two driving members 400 , one of which is arranged between the first driving bridge 510 and the second driving bridge 520 , and the other driving member 400 is arranged between the third driving bridge 530 and the fourth driving bridge 540 .

[0062] In this embodiment, since the position between the first drive axle 510 and the second drive axle 520, and the position between the third drive axle 530 and the fourth drive axle 540 are located at the balance point of the frame 100, and the position is more stable and the mechanical strength is greater, the two drive components 400 are also arranged at the balance point of the frame 100, ensuring that the drive components 400 can provide a balanced lifting force for the lifting platform 200 and making the two drive components 400 more stable.

[0063] In some embodiments, there are two groups of guide mechanisms, one group of guide mechanisms is respectively disposed at the front side of the first drive axle 510 , and the other group of guide mechanisms is respectively disposed at the rear side of the fourth drive axle 520 .

[0064] In this embodiment, since the vehicle frame 100 can avoid the first drive axle 510 and the fourth drive axle 540 at the front side of the first drive axle 510 and the rear side of the fourth drive axle 540, after the two sets of guide mechanisms are respectively arranged at the above positions, the guide part 320 can obtain a larger setting space, and the overall structure is more reasonable and compact.

[0065] In some embodiments, there are two sets of guide mechanisms, and the two sets of guide mechanisms are arranged at intervals along the front-to-back direction of the frame 100. The two sets of guide mechanisms can be on the same straight line in the front-to-back direction of the frame 100, and guide the lifting platform 200 to rise and fall in the front and back directions respectively.

[0066] The present application also provides a control method for a transport machine, which may include a frame 100, a lifting platform 200, two sets of guide mechanisms and two sets of driving members 400. The lifting platform 200 is escalably arranged on the frame 100. One end of the guide part 320 in each set of guide mechanisms is hinged to the lifting platform 200, and the limit part 310 is fixed to the frame 100 and connected to the guide part 320 to constrain the movement trajectory of the guide part 320. The driving member 400 is configured as a power cylinder, which has a main body 410 fixed to the frame 100 and a piston part 420 telescopically arranged on the main body 410, and the end of the piston part 420 is hinged to the lifting platform 200.

[0067] The control method of the transport machinery can be realized by the following steps:

[0068] The piston parts 420 of the plurality of driving members 400 are controlled to extend and retract according to the lifting instructions, so as to drive the lifting platform 200 to move up and down.

[0069] When the difference between the extension amounts of the two piston parts 420 is greater than the threshold difference, the extension amounts of the two piston parts 420 are synchronized to restore the lifting platform 200 to a horizontal state.

[0070] In the above steps, the threshold difference can be set between 8 mm and 10 mm. For example, when the difference between the elongation of the two piston parts 420 is greater than or equal to 10 mm, it can be considered that the elongation of the two piston parts 420 is too large, which has caused the lifting platform 200 to deflect.

[0071] In this embodiment, since one end of the guide part 320 in the guide mechanism is hinged to the lifting platform 200, the freedom of rotation of the guide part 320 and the lifting platform 200 is released. When the difference in the elongation of the two piston parts 420 is greater than the threshold difference, the guide part 320 will not get stuck in the lifting platform 200. Therefore, by adjusting the extension and contraction of the two piston parts 420, the balance of the lifting platform 200 can be adjusted in real time and flexibly, which is simple and easy.

[0072] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0073] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0074] It should be easily understood that the terms “on,” “above,” and “over” in this application should be interpreted in the broadest manner, so that “on” means not only “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above something” or “over,” but also may include the meaning of “above something” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0075] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90° or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A transport machine comprising: Frame (100); A lifting platform (200), the lifting platform (200) being liftably disposed on the vehicle frame (100); A plurality of guide mechanisms are provided, each guide mechanism comprising a limiting portion (310) and a guiding portion (320), one end of the guiding portion (320) being hinged to the lifting platform (200), the limiting portion (310) being fixed to the vehicle frame (100) and connected to the guiding portion (320) for constraining the movement trajectory of the guiding portion (320).

2. The transport machine according to claim 1, wherein: The limiting portion (310) has a guide channel (311), and the guide channel (311) is open along the lifting direction of the lifting platform (200); the guide portion (320) is arranged through the guide channel (311).

3. The transport machine according to claim 2, further comprising: Two groups of driving members (400), the two groups of driving members (400) are arranged at intervals along the front-rear direction of the vehicle frame (100), and are used to drive the lifting platform (200) to rise and fall; The guide mechanism comprises two groups, which are respectively referred to as a first guide mechanism (301) and a second guide mechanism (302); In the first guide mechanism (301), the inner wall of the guide channel (311) and the guide portion (320) are arranged at intervals in the front-rear direction of the vehicle frame (100).

4. The transport machine according to claim 3, wherein: The first guiding mechanism (301) further comprises: A plurality of first lining parts (330) are provided, wherein the plurality of first lining parts (330) are slidably disposed in the guide channel (311), and the plurality of first lining parts (330) are arranged in a gap formed between an inner wall of the guide channel (311) and the guide part (320) in the left-right direction of the vehicle frame (100).

5. The transport machine according to claim 3, wherein: In the first guide mechanism (301), the distance between the guide channel (311) and the guide portion (320) in the front-rear direction of the frame (100) is set to be greater than or equal to 20 mm and less than or equal to 30 mm.

6. The transport machine according to claim 3, wherein: The second guiding mechanism (302) further comprises: A plurality of second lining parts (340), wherein the plurality of second lining parts (340) are slidably disposed in the guide channel (311), and the plurality of second lining parts (340) are arranged in a gap formed between an inner wall of the guide channel (311) and the guide part (320) in a front-rear direction of the vehicle frame (100); A plurality of third lining parts (350) are provided, wherein the plurality of third lining parts (350) are slidably disposed in the guide channel (311), and the plurality of third lining parts (350) are arranged in a gap formed between the inner wall of the guide channel (311) and the guide part (320) in the left-right direction of the vehicle frame (100).

7. The transport machine according to any one of claims 1 to 6, further comprising: A plurality of groups of driving components (400), each group of the driving components (400) is arranged on the vehicle frame (100) and connected to the lifting platform (200) to drive the lifting platform (200) to rise and fall.

8. The transport machine according to claim 7, wherein: The driving member (400) is configured as a power cylinder, which comprises a main body (410) fixed to the frame (100) and a piston (420) telescopically arranged on the main body (410), wherein the end of the piston (420) is hinged to the lifting platform (200).

9. The transport machine according to claim 7, further comprising: A chassis, the chassis comprising a first drive axle (510), a second drive axle (520), a third drive axle (530) and a fourth drive axle (540), the first drive axle (510) and the second drive axle (520) being arranged on a front side of the vehicle frame (100), and the third drive axle (530) and the fourth drive axle (540) being arranged on a rear side of the vehicle frame (100); There are two driving members (400), one of which is arranged between the first driving bridge (510) and the second driving bridge (520), and the other driving member (400) is arranged between the third driving bridge (530) and the fourth driving bridge (540).

10. The transport machine according to claim 9, wherein: The guide mechanisms are in two groups, one of which is arranged at the front side of the first drive axle (510), and the other is arranged at the rear side of the fourth drive axle (520).

Images