Folding bulldozing device and engineering vehicle

Abstract

The utility model discloses a folding bulldozing device and an engineering vehicle, and relates to the technical field of engineering machinery, and the folding bulldozing device comprises a push frame assembly and a folding bulldozing shovel assembly. The push frame assembly comprises a push frame body, the folding dozer blade assembly comprises a first scraper knife assembly and a second scraper knife assembly, the first scraper knife assembly comprises a first main scraper knife and a first side scraper knife, the second scraper knife assembly comprises a second main scraper knife and a second side scraper knife, and the first main scraper knife and the second main scraper knife are hinged to the front end of the push frame body. The first side scraper knife is hinged to the end, away from the second main scraper knife, of the first main scraper knife, and the second side scraper knife is hinged to the end, away from the first main scraper knife, of the second main scraper knife. According to the folding bulldozing device, the foldable side shovel blade is additionally arranged at the end of the main shovel blade, the problem that the whole bulldozing blade is too wide after bulldozing blades are additionally arranged at the two ends of a traditional main shovel blade is solved, and the first shovel blade assembly and the second shovel blade assembly can be constructed into different structures so as to adapt to different working conditions.

Description

Technical Field

[0001] The present application relates to the technical field of construction machinery, and particularly relates to a folding bulldozing device and an engineering vehicle. Background Art

[0002] An engineering vehicle is an engineering operation vehicle applied to various environments, and is equipped with engineering operation devices such as a bulldozing device and an excavating device to meet different working conditions requirements.

[0003] Currently, the bulldozing device is a very important component on an engineering vehicle. Generally installed at the front of the vehicle body, it is mainly used to complete tasks such as bulldozing and clearing various non-explosive obstacles on the road surface. It can also be opened in a straight shovel posture to play an auxiliary leg role in supporting the vehicle body. During the use of bulldozing, although the position and angle of the bulldozing device can be adjusted at any time, there will still be traces of soil leakage at both ends of the bulldozing shovel, which need to be repeatedly leveled or manually assisted to eliminate, affecting the work efficiency. If additional bulldozing shovels are attached at both ends for clearing, it will cause the width of the entire bulldozing shovel to exceed the relevant transportation width requirements. The bulldozing shovel needs to be disassembled before transportation and reassembled before bulldozing and obstacle clearing, and the operation is not convenient enough. Content of the Utility Model

[0004] The purpose of the present application is to provide a folding bulldozing device and an engineering vehicle, which solves the problem that the entire bulldozing shovel becomes too wide after adding bulldozing shovels at both ends.

[0005] To achieve the above purpose, the present application provides a folding bulldozing device, including:

[0006] A push frame assembly, which includes a push frame body;

[0007] A folding bulldozing shovel assembly, which includes a first shovel blade assembly and a second shovel blade assembly. The first shovel blade assembly includes a first main shovel blade and a first side shovel blade, and the second shovel blade assembly includes a second main shovel blade and a second side shovel blade. The first main shovel blade and the second main shovel blade are hinged to the front end of the push frame body. The first side shovel blade is hinged to one end of the first main shovel blade away from the second main shovel blade, and the second side shovel blade is hinged to one end of the second main shovel blade away from the first main shovel blade, so that the first shovel blade assembly and the second shovel blade assembly can be configured into different structures to adapt to different working conditions.

[0008] In some embodiments, the folding bulldozing shovel assembly further includes a first shovel blade changing drive assembly and a second shovel blade changing drive assembly. The two ends of the first shovel blade changing drive assembly are respectively hinged to the first main shovel blade and the push frame body, and the two ends of the second shovel blade changing drive assembly are respectively hinged to the second main shovel blade and the push frame body.

[0009] In some embodiments, a support is provided on the push frame body. The back surfaces of both the first main shovel blade and the second main shovel blade are provided with main shovel blade hinge seats. The two ends of the first variable shovel driving assembly are respectively hinged to the main shovel blade hinge seat on the first main shovel blade and the support, and the two ends of the second variable shovel driving assembly are respectively hinged to the main shovel blade hinge seat on the second main shovel blade and the support.

[0010] In some embodiments, the push frame body includes a bracket in the shape of an isosceles triangle. The bracket includes a support rod, and the support is fixed to the support rod.

[0011] In some embodiments, the folding bulldozing shovel assembly further includes a first side shovel driving assembly, a second side shovel driving assembly, a first connecting rod, a second connecting rod, a first connecting link and a second connecting link;

[0012] One end of the first side shovel driving assembly is hinged to the first main shovel blade, and the other end is hinged to the hinge point of both the first connecting rod and the first connecting link. One end of the first connecting rod is hinged to the first side shovel blade, and the other end is hinged to the hinge point of the first side shovel driving assembly and the first connecting link. One end of the first connecting link is hinged to the hinge point of the first side shovel driving assembly and the first connecting rod, and the other end is hinged to the first main shovel blade;

[0013] One end of the second side shovel driving assembly is hinged to the second main shovel blade, and the other end is hinged to the hinge point of both the second connecting rod and the second connecting link. One end of the second connecting rod is hinged to the second side shovel blade, and the other end is hinged to the hinge point of the second side shovel driving assembly and the second connecting link. One end of the second connecting link is hinged to the hinge point of the second side shovel driving assembly and the second connecting rod, and the other end is hinged to the second main shovel blade.

[0014] In some embodiments, the back surfaces of both the first main shovel blade and the second main shovel blade are provided with connecting link hinge seats and side shovel driving assembly hinge seats, and the back surfaces of both the first side shovel blade and the second side shovel blade are provided with side shovel hinge seats;

[0015] One end of the first side shovel driving assembly is hinged to the side shovel driving assembly hinge seat on the first main shovel blade, and the other end is hinged to the hinge point of both the first connecting rod and the first connecting link. One end of the first connecting rod is hinged to the side shovel hinge seat on the first side shovel blade, and the other end is hinged to the hinge point of the first side shovel driving assembly and the first connecting link. One end of the first connecting link is hinged to the hinge point of the first side shovel driving assembly and the first connecting rod, and the other end is hinged to the connecting link hinge seat on the first main shovel blade;

[0016] One end of the second side shovel drive assembly is hinged to the side shovel drive assembly hinge seat on the second main shovel blade, and the other end is hinged to the hinge point between the second connecting rod and the second swing link. One end of the second connecting rod is hinged to the side shovel hinge seat on the second side shovel blade, and the other end is hinged to the hinge point between the second side shovel drive assembly and the second swing link. One end of the second swing link is hinged to the hinge point between the second side shovel drive assembly and the second connecting rod, and the other end is hinged to the swing link hinge seat on the second main shovel blade.

[0017] In some embodiments, the rotation angle range of the first side shovel blade relative to the first main shovel blade and the rotation angle range of the second side shovel blade relative to the second main shovel blade are both 0 - 90°.

[0018] In some embodiments, a central slewing pin is provided at the front end of the push frame body, and the first main shovel blade and the second main shovel blade are hinged to the central slewing pin.

[0019] In some embodiments, the folding earthmoving device further includes two lifting cylinders. One end of one lifting cylinder is hinged to the first hinge point of the push frame body, and the other end is for hinging to the vehicle body. One end of the other lifting cylinder is hinged to the second hinge point of the push frame body, and the other end is for hinging to the vehicle body.

[0020] This application also provides an engineering vehicle, including the folding earthmoving device of any one of the above.

[0021] Compared with the above background art, the folding bulldozing device provided by the embodiment of the present application includes a push frame assembly and a folding bulldozing shovel assembly. Among them, the push frame assembly includes a push frame body, and the folding bulldozing shovel assembly includes a first shovel blade assembly and a second shovel blade assembly. The first shovel blade assembly includes a first main shovel blade and a first side shovel blade, and the second shovel blade assembly includes a second main shovel blade and a second side shovel blade. The first main shovel blade and the second main shovel blade are hinged to the front end of the push frame body. The first side shovel blade is hinged to one end of the first main shovel blade away from the second main shovel blade, and the second side shovel blade is hinged to one end of the second main shovel blade away from the first main shovel blade. In this way, a foldable first side shovel blade is added to one end of the first main shovel blade, and a foldable second side shovel blade is added to one end of the second main shovel blade. At the same time, the first main shovel blade and the second main shovel blade can rotate relative to each other to achieve folding and unfolding. Compared with the traditional bulldozing device, the folding bulldozing device provided by the embodiment of the present application solves the problem that the entire bulldozing shovel is too wide after adding bulldozing shovels at both ends of the main shovel blade by adding foldable side shovel blades at the ends of the main shovel blade, and enables the first shovel blade assembly and the second shovel blade assembly to be constructed into different structures to adapt to different working conditions. For example, the folding bulldozing shovel assembly can be constructed into a straight shovel state, a V-shovel state, a folding state, and a single-side shovel state. Among them, when in the straight shovel state and the V-shovel state, the width of the bulldozing shovel increases, which can be applicable to scenarios with large requirements for the working width and improve the obstacle clearing speed; when in the folding state, the width of the bulldozing shovel reaches the minimum, which can be applicable to narrow occasions or other specific special requirements, and the width of the whole vehicle meets the requirements of relevant transportation width standards at the same time; the single-side shovel state can be applicable to the removal of obstacles such as triangular cones. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0023] Figure 1 Isometric view of the folding bulldozing device in the V-shovel state in the embodiment of the present application;

[0024] Figure 2 Isometric view of the folding bulldozing device in the folding state in the embodiment of the present application;

[0025] Figure 3 Isometric view of the folding bulldozing device in the straight shovel state in the embodiment of the present application;

[0026] Figure 4 Isometric view of the folding bulldozing device in the single-side shovel state in the embodiment of the present application;

[0027] Figure 5 Top view of the folding bulldozing device in the V-blade state in the embodiment of the present application;

[0028] Figure 6 Top view of the folding bulldozing device in the folded state in the embodiment of the present application;

[0029] Figure 7 Top view of the folding bulldozing device in the straight-blade state in the embodiment of the present application;

[0030] Figure 8 Top view of the folding bulldozing device in the single-side blade state in the embodiment of the present application.

[0031] Wherein:

[0032] 1 - First side blade;

[0033] 2 - First main blade;

[0034] 3 - Central slewing pin;

[0035] 4 - Second main blade;

[0036] 5 - Second side blade;

[0037] 6 - Side blade hinge seat;

[0038] 71 - First connecting rod; 72 - Second connecting rod;

[0039] 8 - Lifting oil cylinder;

[0040] 9 - Pusher frame body; 91 - Bracket; 92 - Support rod;

[0041] 101 - First rocker arm; 102 - Second rocker arm;

[0042] 111 - First side blade drive assembly; 112 - Second side blade drive assembly;

[0043] 12 - Rocker arm hinge seat;

[0044] 13 - Side blade drive assembly hinge seat;

[0045] 141 - First variable blade drive assembly; 142 - Second variable blade drive assembly;

[0046] 15 - Support;

[0047] 16 - Main blade hinge seat. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0049] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0050] It should be noted that the orientation words such as "upper end, lower end, left side, right side" described below are defined based on the accompanying drawings of the specification.

[0051] Please refer to Figures 1 to 8 , Figure 1 , which is an axonometric view of the folding bulldozing device in the V-shaped shovel state in the embodiment of the present application; Figure 2 , which is an axonometric view of the folding bulldozing device in the folded state in the embodiment of the present application; Figure 3 , which is an axonometric view of the folding bulldozing device in the straight shovel state in the embodiment of the present application; Figure 4 , which is an axonometric view of the folding bulldozing device in the single-sided shovel state in the embodiment of the present application; Figure 5 , which is a top view of the folding bulldozing device in the V-shaped shovel state in the embodiment of the present application; Figure 6 , which is a top view of the folding bulldozing device in the folded state in the embodiment of the present application; Figure 7 , which is a top view of the folding bulldozing device in the straight shovel state in the embodiment of the present application; Figure 8 , which is a top view of the folding bulldozing device in the single-sided shovel state in the embodiment of the present application.

[0052] The folding bulldozing device provided in the embodiment of the present application adopts a combined shovel structure and includes a push frame assembly and a folding bulldozing shovel assembly.

[0053] Among them, the push frame assembly includes a push frame body 9, and the folding bulldozing shovel assembly includes a first shovel blade assembly and a second shovel blade assembly. The first shovel blade assembly includes a first main shovel blade 2 and a first side shovel blade 1, and the second shovel blade assembly includes a second main shovel blade 4 and a second side shovel blade 5. The first main shovel blade 2 and the second main shovel blade 4 are hinged to the front end of the push frame body 9. For example, a central slewing pin 3 is provided at the front end of the push frame body 9, and the first main shovel blade 2 and the second main shovel blade 4 are hinged to the central slewing pin 3. The first side shovel blade 1 is hinged to one end of the first main shovel blade 2 away from the second main shovel blade 4, and the second side shovel blade 5 is hinged to one end of the second main shovel blade 4 away from the first main shovel blade 2.

[0054] In this way, a foldable first side blade 1 is added to one end of the first main blade 2, and a foldable second side blade 5 is added to one end of the second main blade 4. At the same time, the first main blade 2 and the second main blade 4 can rotate relative to each other to achieve folding and unfolding.

[0055] Compared with the traditional bulldozing device, the foldable bulldozing device provided by the embodiment of the present application solves the problem that the entire bulldozing blade becomes too wide after adding bulldozing blades at both ends of the main blade by adding foldable side blades at the end of the main blade, and enables the first blade assembly and the second blade assembly to be constructed into different structures to adapt to different working conditions. For example, the foldable bulldozing blade assembly can be constructed into a straight blade state, a V-blade state, a folded state, and a single-side blade state.

[0056] Among them, when in the straight blade state and the V-blade state, the width of the bulldozing blade increases, which can be applicable to scenarios with higher requirements for the working width and improve the obstacle clearing speed; when in the folded state, the width of the bulldozing blade reaches the minimum, which can be applicable to narrow occasions or other specific special requirements, and the vehicle width can meet the requirements of relevant transportation width standards at the same time; the single-side blade state can be applicable to the removal of obstacles such as triangular cones.

[0057] To facilitate driving the first main blade 2 and the second main blade 4, the foldable bulldozing blade assembly further includes a first blade-changing driving component 141 and a second blade-changing driving component 142. The two ends of the first blade-changing driving component 141 are respectively hinged to the first main blade 2 and the push frame body 9, and the two ends of the second blade-changing driving component 142 are respectively hinged to the second main blade 4 and the push frame body 9.

[0058] In some embodiments, a support 15 is provided on the push frame body 9, and main blade hinge seats 16 are provided on the back surfaces of both the first main blade 2 and the second main blade 4. The two ends of the first blade-changing driving component 141 are respectively hinged to the main blade hinge seat 16 on the first main blade 2 and the support 15, and the two ends of the second blade-changing driving component 142 are respectively hinged to the main blade hinge seat 16 on the second main blade 4 and the support 15.

[0059] Of course, according to actual needs, both the first blade-changing driving component 141 and the second blade-changing driving component 142 can be blade-changing driving cylinders. A hydraulic pipeline is installed on the blade-changing driving cylinder, and the blade-changing driving cylinder is operated to expand and contract through the hydraulic system to drive the first main blade 2 and / or the second main blade 4 to rotate around the central pivot pin 3.

[0060] In some embodiments, the push frame body 9 includes a bracket 91 in an isosceles triangle shape. The bracket 91 includes a support rod 92, and the support rod 92 is located on the central axis of the isosceles triangle bracket 91. The support 15 is fixed at a preset position on the support rod 92.

[0061] In some embodiments, the folding bulldozer blade assembly further includes a first side blade drive assembly 111, a second side blade drive assembly 112, a first connecting rod 71, a second connecting rod 72, a first rocker arm 101, and a second rocker arm 102.

[0062] One end of the first side blade drive assembly 111 is hinged to the first main blade 2, and the other end is hinged to the hinge point of both the first connecting rod 71 and the first rocker arm 101. One end of the first connecting rod 71 is hinged to the first side blade 1, and the other end is hinged to the hinge point of the first side blade drive assembly 111 and the first rocker arm 101. One end of the first rocker arm 101 is hinged to the hinge point of the first side blade drive assembly 111 and the first connecting rod 71, and the other end is hinged to the first main blade 2.

[0063] One end of the second side blade drive assembly 112 is hinged to the second main blade 4, and the other end is hinged to the hinge point of both the second connecting rod 72 and the second rocker arm 102. One end of the second connecting rod 72 is hinged to the second side blade 5, and the other end is hinged to the hinge point of the second side blade drive assembly 112 and the second rocker arm 102. One end of the second rocker arm 102 is hinged to the hinge point of the second side blade drive assembly 112 and the second connecting rod 72, and the other end is hinged to the second main blade 4.

[0064] In some embodiments, both the back surfaces of the first main blade 2 and the second main blade 4 are provided with rocker arm hinge seats 12 and side blade drive assembly hinge seats 13, and both the back surfaces of the first side blade 1 and the second side blade 5 are provided with side blade hinge seats 6.

[0065] One end of the first side blade drive assembly 111 is hinged to the side blade drive assembly hinge seat 13 on the first main blade 2, and the other end is hinged to the hinge point of both the first connecting rod 71 and the first rocker arm 101. One end of the first connecting rod 71 is hinged to the side blade hinge seat 6 on the first side blade 1, and the other end is hinged to the hinge point of the first side blade drive assembly 111 and the first rocker arm 101. One end of the first rocker arm 101 is hinged to the hinge point of the first side blade drive assembly 111 and the first connecting rod 71, and the other end is hinged to the rocker arm hinge seat 12 on the first main blade 2;

[0066] One end of the second side blade drive assembly 112 is hinged to the side blade drive assembly hinge seat 13 on the second main blade 4, and the other end is hinged to the hinge point of both the second connecting rod 72 and the second rocker arm 102. One end of the second connecting rod 72 is hinged to the side blade hinge seat 6 on the second side blade 5, and the other end is hinged to the hinge point of the second side blade drive assembly 112 and the second rocker arm 102. One end of the second rocker arm 102 is hinged to the hinge point of the second side blade drive assembly 112 and the second connecting rod 72, and the other end is hinged to the rocker arm hinge seat 12 on the second main blade 4.

[0067] Of course, according to actual needs, both the first side shovel drive assembly 111 and the second side shovel drive assembly 112 can be side shovel drive cylinders. A hydraulic pipeline is installed on the side shovel drive cylinder. By operating the hydraulic system, the side shovel drive cylinder can be telescoped to drive the first side shovel blade 1 and the second side shovel blade 5 to rotate around each hinge point.

[0068] The drive cylinder used in the above solution can also be replaced by an electric cylinder or a pneumatic cylinder, which is specifically determined according to the actual situation.

[0069] It should be noted that both the variable shovel drive cylinder and the side shovel drive cylinder can act asynchronously. The shovel blade can be switched between straight shovel, V-shaped shovel, folding and other states, and can also be in states such as single-sided straight shovel and single-sided inclined shovel, realizing the variable shovel action of the shovel blade. By controlling the transformation of the shovel blade shape with the drive cylinder, it can meet the requirements of obstacle clearance, bulldozing and some specific operations.

[0070] In some embodiments, the rotation angle range of the first side shovel blade 1 relative to the first main shovel blade 2 and the rotation angle range of the second side shovel blade 5 relative to the second main shovel blade 4 are both 0 - 90°.

[0071] When the folding bulldozing shovel assembly can be configured in a folded state, the included angle between the first side shovel blade 1 and the first main shovel blade 2 is 90°, and the included angle between the second side shovel blade 5 and the second main shovel blade 4 is 90°.

[0072] In some embodiments, the folding bulldozing device further includes two lifting cylinders 8. One end of one lifting cylinder 8 is hinged to the first hinge point of the push frame body 9 through a pin shaft, and the other end is used for hinging to the vehicle body. One end of the other lifting cylinder 8 is hinged to the second hinge point of the push frame body 9 through a pin shaft, and the other end is used for hinging to the vehicle body. Among them, the first hinge point and the first hinge point of the push frame body 9 are respectively located on the left and right sides of the push frame body 9.

[0073] The states of the folding bulldozing shovel assembly are specifically described below:

[0074] When the bulldozing device is in the V-shaped shovel state (see Figure 5 ): In this state, operate the first variable shovel drive assembly 141 and the second variable shovel drive assembly 142 to contract, driving the first main shovel blade 2 and the second main shovel blade 4 to rotate around the central slewing pin 3. Operate the first side shovel drive assembly 111 and the second side shovel drive assembly 112 to extend, driving the first side shovel blade 1 and the second side shovel blade 5 to rotate through each hinge point, making the first side shovel blade 1 flush with the first main shovel blade 2 and the second side shovel blade 5 flush with the second main shovel blade 4, so that the first main shovel blade 2, the second main shovel blade 4, the first side shovel blade 1 and the second side shovel blade 5 form a V-shaped structure. In this state, there is a certain included angle between the first main shovel blade 2 and the second main shovel blade 4, and during the bulldozing process, the obstacles cleared can be moved backward and to the side along the edge line of the shovel blade.

[0075] When the earth-moving device is in the folded state (see Figure 6 ): In this state, operate the first variable shovel drive assembly 141 and the second variable shovel drive assembly 142 to extend, driving the first main shovel blade 2 and the second main shovel blade 4 to rotate around the central slewing pin 3. Operate the first side shovel drive assembly 111 and the second side shovel drive assembly 112 to contract, driving the first side shovel blade 1 and the second side shovel blade 5 to rotate through each hinge point. The first side shovel blade 1 and the second side shovel blade 5 rotate 90° from the straight shovel state. The first side shovel blade 1 forms a 90° angle with the first main shovel blade 2, and the second side shovel blade 5 forms a 90° angle with the second main shovel blade 4. The width of the earth-moving shovel reaches the minimum in this state, which can be applied to occasions with a relatively narrow width or other specific special requirements. At this time, the width of the whole vehicle meets the requirements of relevant transportation width standards.

[0076] When the earth-moving device is in the straight shovel state (see Figure 7 ): In this state, operate the first variable shovel drive assembly 141 and the second variable shovel drive assembly 142 to extend, driving the first main shovel blade 2 and the second main shovel blade 4 to rotate around the central slewing pin 3. Operate the first side shovel drive assembly 111 and the second side shovel drive assembly 112 to extend, driving the first side shovel blade 1 and the second side shovel blade 5 to rotate through each hinge point, so that the first main shovel blade 2, the second main shovel blade 4, the first side shovel blade 1, and the second side shovel blade 5 are all in the same plane. The width of the earth-moving shovel is adjusted to the maximum in this state, which can be applied to scenarios with a large requirement for the operation width and improve the obstacle clearing speed.

[0077] When the earth-moving device is in the single-side shovel state (see Figure 8 ): In this state, operate one side of the variable shovel drive assembly to extend, so that the main shovel blade on that side rotates around the central slewing pin 3 and is in the straight shovel state. Operate the variable shovel drive assembly on the other side to contract, so that the main shovel blade on that side rotates around the central slewing pin 3 and is in the V-shovel state. The first side shovel drive assembly 111 and the second side shovel drive assembly 112 extend, driving the first side shovel blade 1 and the second side shovel blade 5 to rotate through each hinge point, so that the first side shovel blade 1 is flush with the first main shovel blade 2, and the second side shovel blade 5 is flush with the second main shovel blade 4.

[0078] An engineering vehicle provided by the present application includes the folding earth-moving device described in the above specific embodiments; other parts of the engineering vehicle can refer to the related art and will not be elaborated herein.

[0079] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0080] The above has introduced in detail the folding bulldozing device and the engineering vehicle provided by the present application. Specific examples are used in this text to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the solution of the present application and its core idea. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A folding bulldozer, characterized in that: include: A push frame assembly, the push frame assembly comprising a push frame body; A folding bulldozer assembly, the folding bulldozer assembly comprising a first blade assembly and a second blade assembly, the first blade assembly comprising a first main blade and a first side blade, the second blade assembly comprising a second main blade and a second side blade, the first main blade and the second main blade being hinged to the front end of the push frame body, the first side blade being hinged to an end of the first main blade away from the second main blade, and the second side blade being hinged to an end of the second main blade away from the first main blade, so that the first blade assembly and the second blade assembly can be constructed into different structures to adapt to different working conditions.

2. The folding bulldozer device according to claim 1, characterized in that: The folding bulldozer assembly also includes a first variable shovel drive assembly and a second variable shovel drive assembly, wherein two ends of the first variable shovel drive assembly are respectively hinged to the first main shovel blade and the push frame body, and two ends of the second variable shovel drive assembly are respectively hinged to the second main shovel blade and the push frame body.

3. The folding bulldozer device according to claim 2, characterized in that: A support is provided on the push frame body, and main blade articulated seats are provided on the backs of the first main blade and the second main blade. The two ends of the first variable shovel drive assembly are respectively hinged to the main blade articulated seat and the support on the first main blade, and the two ends of the second variable shovel drive assembly are respectively hinged to the main blade articulated seat and the support on the second main blade.

4. The folding bulldozer device according to claim 3, characterized in that: The push frame body comprises a bracket in the shape of an isosceles triangle, the bracket comprises a support rod, and the support seat is fixed on the support rod.

5. The folding bulldozer device according to claim 1, characterized in that: The folding bulldozer assembly further includes a first side blade drive assembly, a second side blade drive assembly, a first connecting rod, a second connecting rod, a first connecting rod and a second connecting rod; One end of the first side shovel drive assembly is hinged to the first main shovel blade, and the other end is hinged to the hinge point of the first connecting rod and the first frame rod; one end of the first connecting rod is hinged to the first side shovel blade, and the other end is hinged to the hinge point of the first side shovel drive assembly and the first frame rod; one end of the first frame rod is hinged to the hinge point of the first side shovel drive assembly and the first connecting rod, and the other end is hinged to the first main shovel blade; One end of the second side shovel drive assembly is hinged to the second main shovel blade, and the other end is hinged to the hinge point between the second connecting rod and the second frame rod. One end of the second connecting rod is hinged to the second side shovel blade, and the other end is hinged to the hinge point between the second side shovel drive assembly and the second frame rod. One end of the second frame rod is hinged to the hinge point between the second side shovel drive assembly and the second connecting rod, and the other end is hinged to the second main shovel blade.

6. The folding bulldozer device according to claim 5, characterized in that: The backs of the first main shovel blade and the second main shovel blade are both provided with a connecting rod hinge seat and a side shovel drive assembly hinge seat, and the backs of the first side shovel blade and the second side shovel blade are both provided with a side shovel hinge seat; One end of the first side shovel drive assembly is hinged to the side shovel drive assembly articulation seat on the first main shovel blade, and the other end is hinged to the hinge point of the first connecting rod and the first frame rod; one end of the first connecting rod is hinged to the side shovel articulation seat on the first side shovel blade, and the other end is hinged to the hinge point of the first side shovel drive assembly and the first frame rod; one end of the first frame rod is hinged to the hinge point of the first side shovel drive assembly and the first connecting rod, and the other end is hinged to the frame rod articulation seat on the first main shovel blade; One end of the second side shovel drive assembly is hinged to the side shovel drive assembly articulation seat on the second main shovel blade, and the other end is hinged to the hinge point between the second connecting rod and the second frame rod. One end of the second connecting rod is hinged to the side shovel articulation seat on the second side shovel blade, and the other end is hinged to the hinge point between the second side shovel drive assembly and the second frame rod. One end of the second frame rod is hinged to the hinge point between the second side shovel drive assembly and the second connecting rod, and the other end is hinged to the frame rod articulation seat on the second main shovel blade.

7. The folding bulldozer device according to claim 1, characterized in that: The rotation angle range of the first side scraper relative to the first main scraper and the rotation angle range of the second side scraper relative to the second main scraper are both 0-90°.

8. The folding bulldozer device according to claim 1, characterized in that: A central swivel pin is provided at the front end of the push frame body, and the first main shovel blade and the second main shovel blade are hinged to the central swivel pin.

9. The folding bulldozer device according to any one of claims 1 to 8, characterized in that: The folding bulldozer device also includes two lifting cylinders, one end of one of the lifting cylinders is hinged to the first hinge point of the push frame body, and the other end is used to be hinged to the vehicle body, and the other end of the lifting cylinder is hinged to the second hinge point of the push frame body, and the other end is used to be hinged to the vehicle body.

10. An engineering vehicle, characterized in that: It comprises a folding bulldozer device as described in any one of claims 1 to 9.

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