A bulldozing device and method of operation and disassembly thereof

Abstract

This invention discloses a bulldozing device and its operation and disassembly method. The device includes a bulldozing mechanism, a luffing mechanism, and a support mechanism. The bulldozing mechanism is hinged to an excavator, and the luffing mechanism is driven to connect to the bulldozing mechanism. The support mechanism is symmetrically installed between the luffing mechanism and the bulldozing mechanism and is used to contact the ground. The luffing mechanism and the bulldozing mechanism have a quadrilateral connection structure, and when a parallelogram connection structure is formed between the luffing mechanism and the bulldozing mechanism, the support mechanism is perpendicular to the ground. The power output from the first and second outrigger cylinders of the support mechanism drives the first and second outriggers to rotate relative to two sets of outrigger hinge seats, thereby adjusting the height of the two sets of outrigger discs and achieving support for the bulldozing mechanism and the luffing mechanism on both sides of the ground at different heights and shapes. This invention can achieve the best effect of ground support for the luffing mechanism and the bulldozing mechanism, thereby increasing the stability of the bulldozing mechanism's operating range.

Description

Technical Field

[0001] This invention relates to a bulldozing device and its operation and dismantling method, belonging to the field of engineering machinery technology. Background Technology

[0002] Currently, excavators with push blades on the market are more likely to tip over when operating on both sides due to their long boom span. Therefore, they can only sacrifice the working range to ensure operational stability.

[0003] Secondly, traditional bulldozers use a triangular luffing mechanism for operation. During the luffing process, the attitude of the bulldozer blade relative to the ground is constantly changing, resulting in a small and unstable working range. Although there are corresponding measures in the existing technology to improve the luffing mechanism to increase the working range, such as designing a quadrilateral luffing mechanism to increase the working range of the bulldozer blade, this quadrilateral luffing mechanism has poor stability due to its quadrilateral shape. When operating on uneven ground, it further aggravates the instability of the working range of the bulldozer blade and cannot be widely promoted and applied.

[0004] In addition, existing technologies have equipped some excavators with outriggers to ensure the stability of excavation or bulldozing operations. However, this improvement not only takes up a large amount of space on the vehicle body, but also increases the difficulty of modular disassembly of the whole machine, thus causing inconvenience in assembly and transportation.

[0005] Therefore, it is necessary to provide a new bulldozing and support composite device that can solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a bulldozing device and its operation and disassembly method. When the luffing mechanism and the bulldozing mechanism of this invention are adjusted to a parallelogram shape, the support mechanism is made perpendicular to the ground. By adjusting the lifting of the support mechanism, ground support can be provided at the connection points at both ends of the luffing mechanism and the bulldozing mechanism, thereby increasing the stability of the bulldozing mechanism's operating range.

[0007] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution.

[0008] A bulldozing device, comprising:

[0009] The bulldozing mechanism is hinged to the excavator, the luffing mechanism is driven by the bulldozing mechanism, and the support mechanism is symmetrically installed between the luffing mechanism and the bulldozing mechanism and in contact with the ground.

[0010] The support mechanism includes: two sets of outrigger hinge seats symmetrically and fixedly installed at the connection between the luffing mechanism and the bulldozing mechanism; a first outrigger and a second outrigger respectively hinged to the two sets of outrigger hinge seats by two connecting pins; a first outrigger cylinder and a second outrigger cylinder respectively hinged at one end to the two sets of outrigger hinge seats and at the other end to the first outrigger and the second outrigger; and two sets of outrigger discs respectively fixedly installed at the ends of the first outrigger and the second outrigger away from the outrigger hinge seats.

[0011] The power output from the first and second outrigger cylinders respectively drives the first and second outriggers to rotate relative to the two sets of outrigger hinge seats, so as to adjust the height of the two sets of outrigger discs and provide ground support for both sides of the bulldozing mechanism and the luffing mechanism.

[0012] The luffing mechanism and the bulldozing mechanism are connected by a quadrilateral structure. When the luffing mechanism and the bulldozing mechanism form a parallelogram connection structure, the support mechanism is perpendicular to the ground, achieving the best effect of ground support for the luffing mechanism and the bulldozing mechanism.

[0013] Optionally, both the first and second legs include: symmetrically arranged first and second leg side plates, a leg upper sealing plate and a leg lower sealing plate respectively fixedly connected between the first and second leg side plates, a cue inserted between the leg upper sealing plate and the leg lower sealing plate, a base plate hinged to the spherical end of the cue, and a fixing plate fixedly connected to the hinge point between the base plate and the cue.

[0014] Optionally, the top of the base plate is provided with a groove for receiving a spherical end, and the bottom diameter of the base plate is larger than the top diameter of the base plate;

[0015] The fixing plate is radially fixed to the opening of the groove by several fixing bolts, and the diameter of the fixing plate and the ball stick insertion point is smaller than the diameter of the spherical end, in order to prevent the spherical end of the ball stick from falling off the base plate.

[0016] Optionally, the bulldozing mechanism includes: a main shovel, and a bulldozing shovel bracket with one end hinged to the back of the main shovel and the other end hinged to the luffing mechanism.

[0017] The main shovel has a first side shovel and a second side shovel fixedly connected to its two ends respectively; two sets of main shovel hinge seats are fixedly connected to the two ends of the back of the main shovel, and the upper and lower ends of the main shovel hinge seats are provided with symmetrical holes for connecting to the bulldozer blade support and the luffing mechanism respectively through pins; the outer side of the main shovel hinge seat is also fixedly connected to the outrigger hinge seat for providing ground support for the luffing mechanism and the bulldozer blade support.

[0018] Optionally, the luffing mechanism includes: two sets of bulldozer blade bracket connecting seats that are fixedly installed on the excavator frame and connected to the bulldozer blade bracket respectively; two sets of adjusting cylinder connecting seats that are fixedly installed on the excavator frame respectively; two sets of bulldozer blade cylinder connecting seats that are fixedly installed on the excavator frame respectively; an adjusting cylinder that is connected at one end to the main blade hinge seat and at the other end to the adjusting cylinder connecting seat; and a bulldozer blade cylinder that is hinged at one end to the bulldozer blade bracket and at the other end to the bulldozer blade cylinder connecting seat.

[0019] The number of the adjusting cylinder and the bulldozer blade cylinder is two sets, and the adjusting cylinder and the bulldozer blade cylinder are arranged in parallel.

[0020] The power ends of the two sets of adjusting cylinders are respectively hinged to the symmetrical holes at the upper end of the two sets of main shovel hinge seats by pins. The power of the two sets of adjusting cylinders directly drives the upper end of the two sets of main shovel hinge seats to rotate, thereby driving the main shovel to rotate as a whole, so as to adjust the cutting angle of the main shovel relative to the ground.

[0021] Optionally, the bulldozer blade support includes: two sets of bottom connecting rods, one end of which is respectively connected to two sets of main blade hinge seats and the other end of which is respectively hinged to two sets of bulldozer blade support connecting seats; a crossbar fixedly installed between the two sets of bottom connecting rods; and two sets of parallel crossbar hinge seats symmetrically installed at both ends of the crossbar.

[0022] The two sets of horizontal bar hinge seats are connected to the two sets of bulldozer blade cylinders respectively via pins. The power output from the two sets of bulldozer blade cylinders is transmitted to the two sets of bottom connecting rods through the horizontal bar hinge seats. This is used to drive the two sets of bottom connecting rods to rotate relative to the two sets of bulldozer blade bracket connecting seats, while simultaneously driving the two sets of main blade hinge seats and the main blade to move up and down, so as to adjust the overall height of the main blade relative to the ground.

[0023] Optionally, the quadrilateral connection structure between the luffing mechanism and the bulldozing mechanism includes: a top two-point hinge formed by connecting the upper end of the main shovel hinge seat to the adjusting cylinder and the adjusting cylinder connecting seat; a bottom two-point hinge formed by connecting the lower end of the main shovel hinge seat to the bulldozer blade bracket and the bulldozer blade bracket connecting seat; and a quadrilateral connection structure with four points at the top and bottom formed by connecting the main shovel hinge seat itself and the bulldozer blade bracket connecting seat, the adjusting cylinder connecting seat, and the excavator frame.

[0024] The distance from the upper hinge point to the lower hinge point of the two sets of main shovel hinge seats is equal to the distance from the two sets of adjusting cylinder connecting seats to the two sets of bulldozer blade bracket connecting seats. At the same time, the lengths of the two sets of bottom connecting rods are equal and parallel to each other. At this time, only the power output of the adjusting cylinder is adjusted so that the luffing mechanism and the bulldozing mechanism can quickly achieve a parallelogram connection structure.

[0025] Optionally, a quick-release structure is also included, comprising: four sets of positioning pins respectively inserted into the connecting pins of the crossbar hinge seat and the bulldozer blade cylinder and the connecting pin of the main shovel hinge seat and the adjusting cylinder; four sets of positioning holes respectively opened at the ends of the four sets of positioning pins; four sets of B-type spring pins respectively inserted into the four sets of positioning holes; two sets of quick-release holes respectively opened on the two sets of bottom connecting rods and corresponding to the shaft holes of the two sets of crossbar hinge seats; pin fixing bolts respectively fixedly installed at the connecting pins of the two sets of bulldozer blade bracket connecting seats and the two sets of bottom connecting rods; and hydraulic quick-release connectors fixedly installed on the excavator frame and respectively connected to the first outrigger cylinder, the second outrigger cylinder and the hydraulic system.

[0026] Optionally, the hydraulic quick-release connector includes: a quick-release fixing block fixedly installed on the excavator frame and connected to the hydraulic system; a quick-release movable block abutting against the quick-release fixing block and communicating with the quick-release fixing block via a quick-release handle; four sets of hydraulic connectors inserted into the quick-release movable block and communicating with the hydraulic system; and two sets of oil inlet pipes and two sets of oil outlet pipes respectively installed on the four sets of hydraulic connectors and respectively connected to the first outrigger cylinder and the second outrigger cylinder.

[0027] The quick-connect fixing block has an opening for communication with the hydraulic system, and the hydraulic connector is positioned corresponding to the opening of the quick-connect fixing block, and is used to supply oil to the first leg cylinder and the second leg cylinder respectively.

[0028] The two sides of the quick-connect handle are hinged to the two sides of the quick-connect movable block. When the quick-connect handle rotates upward relative to the quick-connect movable block, the two sides of the quick-connect handle clamp onto the two sides of the quick-connect fixed block, fixing the quick-connect movable block onto the quick-connect fixed block. When the quick-connect handle rotates downward relative to the quick-connect movable block, the two sides of the quick-connect handle disengage from the two sides of the quick-connect fixed block, disconnecting the quick-connect movable block and the quick-connect fixed block.

[0029] Optionally, locking nuts are also fixedly connected to both sides of the quick-connect handle to position and lock the rotation angle between the quick-connect handle and the quick-connect movable step, preventing accidental operation.

[0030] Optionally, it also includes independently controlling the oil supply and return of the first and second outrigger cylinders via a hydraulic system to accommodate different ground and terrain conditions at the heights of the first and second outriggers.

[0031] A method of using a bulldozing device, based on the bulldozing device described above, includes:

[0032] Adjust the luffing mechanism according to the ground and terrain, so that the luffing mechanism drives the bulldozing mechanism to adjust the height of the main shovel and the cutting angle of the main shovel relative to the ground; and after adjustment, the two ends of the bulldozing mechanism and the two ends of the luffing mechanism form a parallelogram connection structure respectively.

[0033] When the bulldozing mechanism and the luffing mechanism are connected by a parallelogram structure, the two sets of outrigger hinge seats in the support mechanism, the two sides of the first outrigger and the second outrigger are respectively perpendicular to the ground, and the two sets of outrigger discs are parallel to the ground.

[0034] The raising and lowering of the first and second outriggers are independently controlled according to the ground height and terrain corresponding to the first and second outriggers, so as to enable the first and second outriggers to adapt to the different road surfaces on both sides of the bulldozer mechanism and increase the stability of the bulldozer mechanism's working range on ground at different heights.

[0035] A method for dismantling a bulldozing device, based on the aforementioned bulldozing device, includes:

[0036] For disassembling the bulldozing mechanism and luffing mechanism, firstly, pull out the four sets of B-type spring pins in the quick-release structure, then pull out the positioning pins acted upon by the B-type spring pins. This releases the limiting action on the connecting pins between the crossbar hinge seat and the bulldozer blade cylinder, and at the end of the connecting pin between the main blade hinge seat and the adjusting cylinder. This releases the fixed connection between the adjusting cylinder and the main blade, and between the bulldozer blade cylinder and the bulldozer blade bracket.

[0037] To disassemble the bulldozer mechanism from the excavator frame, the connection between the bulldozer mechanism and the excavator frame can be released by applying the pin fixing bolts at the connecting pins of the two sets of bulldozer blade bracket connecting seats and the two sets of bottom connecting rods.

[0038] For the disassembly of the excavator hydraulic system and support device, after hydraulic unloading and the hydraulic system stops operating, the quick-connect fixed block and quick-connect movable block are separated by applying the locking nut and changing the direction of the quick-connect handle, thereby achieving rapid separation of the support device cylinder from the excavator hydraulic system and the excavator frame.

[0039] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0040] When adjusting the luffing mechanism and the bulldozing mechanism to a parallelogram shape, the support mechanism is made perpendicular to the ground. By adjusting the lifting of the support mechanism, ground support can be provided at the connection points at both ends of the luffing mechanism and the bulldozing mechanism, thereby increasing the stability of the bulldozing mechanism's operating range.

[0041] The luffing mechanism and the bulldozing mechanism adopt a quadrilateral structure, in which the distance of three sides remains unchanged. Only the length of the connecting structure adjustment cylinder needs to be adjusted to be equal to the length of the two hinge points of the bulldozing support. This can quickly achieve the parallelogram shape of the luffing mechanism and the bulldozing mechanism. The adjustment cycle is short and the stability of the working range after adjustment is higher than that of the existing quadrilateral luffing mechanism.

[0042] The two legs are independently controlled by their respective outrigger cylinders to adapt to road surfaces with different heights on both sides; the main shovel 1A remains in the same posture under the parallelogram shape, and the outriggers also remain in the same posture on the ground when the bulldozer blade is at different heights, ensuring the stability of the outriggers.

[0043] The outrigger plate and outrigger are connected by a ball joint, which is more adaptable to uneven road surfaces and further improves the stability of the support.

[0044] Compared to the solution of mounting the outriggers on the vehicle body, arranging the outriggers on the bulldozer blade effectively frees up vehicle body space and improves the efficiency of modular assembly and disassembly of the whole machine.

[0045] In addition, the quick-release structure allows for the rapid disassembly of the bulldozing mechanism and luffing mechanism, the bulldozing mechanism from the excavator frame, and the excavator hydraulic system from the support device. This also shortens installation time, reduces installation difficulty, and lowers subsequent maintenance costs. Attached Figure Description

[0046] Figure 1 The diagram shown is a schematic representation of the overall structure of the bulldozing device of the present invention.

[0047] Figure 2 The diagram shown is a structural schematic of the bulldozing mechanism and the luffing mechanism of the present invention.

[0048] Figure 3 The diagram shown is a structural schematic of the support mechanism of the present invention;

[0049] Figure 4 The diagram shown is an embodiment of the support mechanism of the present invention;

[0050] Figure 5 The diagram shown is a structural schematic of the bulldozing device and excavator frame of the present invention.

[0051] Figure 6 The figure shown is an embodiment of the quick-release structure of the present invention. Figure 1 ;

[0052] Figure 7 The figure shown is an embodiment of the quick-release structure of the present invention. Figure 2 ;

[0053] Figure 8 The figure shown is an embodiment of the quick-release structure of the present invention. Figure 3 ;

[0054] Figure 9 The figure shown is an embodiment of the quick-release structure of the present invention. Figure 4 ;

[0055] In the diagram: 1-Bulldozer mechanism, 1A-Main shovel, 1A1-Main shovel hinge seat, 1B-Bulldozer support, 1B1-Bottom connecting rod, 1B2-Crossbar, 1B3-Crossbar hinge seat, 1D-First side shovel, 1E-Second side shovel, 2-Support mechanism, 2A-First outrigger, 2A1-First outrigger side plate, 2A2-Outrigger upper sealing plate, 2A3-Roller, 2A4-Second outrigger side plate, 2A5-Outrigger lower sealing plate, 2B-Outrigger disc, 2B1-Fixing bolt, 2B2-Fixing plate, 2B3-Base plate, 2C-Outrigger cylinder, 2D-Outrigger hinge seat, 3-Luffing mechanism 1C-Adjusting cylinder, 1F-Bulldozer blade cylinder, 3A-Bulldozer blade bracket connecting seat, 3B-Adjusting cylinder connecting seat, 3C-Bulldozer blade cylinder connecting seat, 4-Excavator frame, 5-Quick release structure, 5A-Type B spring pin, 5B-Positioning pin, 5C-Pin fixing bolt, 5D-Quick insertion fixing block, 5E-Quick insertion movable block, 5E1-First outrigger cylinder inlet pipe, 5E2-First outrigger cylinder outlet pipe, 5E3-Second outrigger cylinder inlet pipe, 5E4-Second outrigger cylinder outlet pipe, 5F-Quick insertion handle, 5G-Locking nut, 6-Connecting pin. Detailed Implementation

[0056] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention. Example

[0057] This embodiment provides a bulldozing device, such as Figure 1 The diagram shows: a bulldozing mechanism 1, a luffing mechanism 3, and a support mechanism 2; wherein, the bulldozing mechanism 1 is hinged to the excavator, the luffing mechanism 3 is driven to the bulldozing mechanism 1, and the support mechanism 2 is symmetrically installed between the luffing mechanism 3 and the bulldozing mechanism 1 and is used to contact the ground.

[0058] The support mechanism 2 includes: outrigger hinge 2D, first outrigger 2A, second outrigger, first outrigger cylinder 2C, second outrigger cylinder 2C, and outrigger disc 2B; there are two sets of outrigger hinge 2D, which are symmetrically and fixedly installed at the connection between the luffing mechanism 3 and the bulldozing mechanism 1. The first outrigger 2A and the second outrigger are respectively hinged to the two sets of outrigger hinge 2D by two connecting pins. One end of the first outrigger cylinder 2C and the second outrigger cylinder 2C are respectively hinged to the two sets of outrigger hinge 2D, and the other end is respectively hinged to the first outrigger 2A and the second outrigger. The number of outrigger discs 2B corresponds to the number of outrigger hinge 2D, and the two sets of outrigger discs 2B are respectively fixedly installed at the ends of the first outrigger 2A and the second outrigger away from the outrigger hinge 2D.

[0059] The power output from the first outrigger cylinder 2C and the second outrigger cylinder 2C respectively drives the first outrigger 2A and the second outrigger to rotate relative to the two sets of outrigger hinge seats 2D, so as to adjust the height of the two sets of outrigger discs 2B and realize ground support for both sides of the bulldozing mechanism 1 and the luffing mechanism 3.

[0060] like Figure 2 The luffing mechanism 3 and the bulldozing mechanism 1 are connected by a quadrilateral structure. When the luffing mechanism 3 and the bulldozing mechanism 1 form a parallelogram connection structure, the support mechanism 2 is perpendicular to the ground, so as to achieve the best effect of ground support for the luffing mechanism 3 and the bulldozing mechanism 1.

[0061] While existing technologies employ a quadrilateral design for the luffing mechanism 3 to increase the working range of the bulldozer blade, such quadrilateral luffing mechanisms 3 typically involve multiple hinged parallelogram linkages arranged at intervals along the width of the bulldozer blade. The parallelograms are formed by connecting the two upper hinge points, their corresponding front hinge points, and their rear hinge points. This linkage increases the vertical working range of the bulldozer blade. However, due to the shape of the parallelograms and the fact that all their connection points are movable hinges, the device suffers from poor stability, especially on uneven ground, leading to instability in the bulldozer blade's working range and hindering its widespread adoption. Therefore, this invention optimizes and improves upon the aforementioned device by adding a support mechanism 2 to support the luffing mechanism 3 and the bulldozer mechanism 1, thereby stabilizing their working ranges.

[0062] Preferred, such as Figures 3 to 4 The first leg 2A and the second leg shown both include: a side plate 2A1 of the first leg 2A, a side plate 2A4 of the second leg, an upper sealing plate 2A2 of the leg, a lower sealing plate 2A5 of the leg, a cue stick 2A3, a base plate 2B3, and a fixing plate 2B2;

[0063] The first leg 2A side plate 2A1 and the second leg side plate 2A4 are symmetrically arranged and are fixedly connected by the upper leg sealing plate 2A2 and the lower leg sealing plate 2A5. The upper leg sealing plate 2A2 and the lower leg sealing plate 2A5 are respectively fixedly connected between the first leg 2A side plate 2A1 and the second leg side plate 2A4. The ball stick 2A3 is inserted between the upper leg sealing plate 2A2 and the lower leg sealing plate 2A5. The base plate 2B3 is hinged to the spherical end of the ball stick 2A3. The fixing plate 2B2 is fixedly connected to the hinge between the base plate 2B3 and the ball stick 2A3.

[0064] Furthermore, the top of the base plate 2B3 is provided with a groove for receiving the spherical end, and the bottom diameter of the base plate 2B3 is larger than the top diameter of the base plate 2B3.

[0065] The fixing plate 2B2 is radially fixed to the opening of the groove by several fixing bolts 2B1, and the diameter of the fixing plate 2B2 and the ball rod 2A3 is smaller than the diameter of the spherical end, which is used to prevent the spherical end of the ball rod 2A3 from falling off the base plate 2B3. At the same time, in this embodiment, the support leg and the support leg plate 2B are connected by a ball joint, so that the support leg plate 2B can still effectively contact the ground when the ground is uneven, ensuring the stability of the support.

[0066] Preferably, the bulldozing mechanism 1 includes: a main shovel 1A and a bulldozing blade support. One end of the bulldozing blade support is hinged to the back of the main shovel 1A and the other end is hinged to the luffing mechanism 3. A first side shovel 1D and a second side shovel 1E are fixedly connected to both ends of the main shovel 1A. Two sets of main shovel 1A hinge seats 1A1 are fixedly connected to both ends of the back of the main shovel 1A. Symmetrical holes are opened at the upper and lower ends of the main shovel 1A hinge seats 1A1 for connecting to the bulldozing blade support and the luffing mechanism 3 respectively through pins. The outer side of the main shovel 1A hinge seat 1A1 is also fixedly connected to the outrigger hinge seat 2D for providing ground support for the luffing mechanism 3 and the bulldozing blade support. During bulldozing, the outrigger hinge seat 2D abuts against the ground to support the hinge point between the luffing mechanism 3 and the bulldozing blade support, reducing the swaying at the parallelogram hinge point, thereby stabilizing the working range of the bulldozing mechanism 1.

[0067] Preferred, such as Figure 5 The luffing mechanism 3 shown includes: a bulldozer blade support connecting seat 3A, an adjusting cylinder 1C connecting seat 3B, a bulldozer blade cylinder 1F connecting seat 3C, an adjusting cylinder 1C, and a bulldozer blade cylinder 1F. There are two sets of bulldozer blade support connecting seats 3A, each set fixedly installed on the excavator frame 4 and connected to the bulldozer blade support. The number of adjusting cylinder 1C connecting seat 3B, bulldozer blade cylinder 1F connecting seat 3C, adjusting cylinder 1C, and bulldozer blade cylinder 1F are all the same as the number of bulldozer blade support connecting seats 3A.

[0068] Two sets of adjusting cylinder 1C connecting seats 3B are respectively fixedly installed on the excavator frame 4, and two sets of bulldozer blade cylinder 1F connecting seats 3C are respectively fixedly installed on the excavator frame 4. One end of the adjusting cylinder 1C is connected to the hinge seat 1A1 of the main blade 1A and the other end is connected to the adjusting cylinder 1C connecting seat 3B. One end of the bulldozer blade cylinder 1F is hinged to the bulldozer blade bracket and the other end is connected to the bulldozer blade cylinder 1F connecting seat 3C.

[0069] In addition, the adjusting cylinders 1C and the bulldozer blade cylinders 1F are arranged in parallel. The power ends of the two sets of adjusting cylinders 1C are respectively hinged to the symmetrical holes at the upper end of the hinge seats 1A1 of the two sets of main blades 1A by pins. The power of the two sets of adjusting cylinders 1C directly drives the upper end of the hinge seats 1A1 of the two sets of main blades 1A to rotate, thereby driving the main blades 1A to rotate as a whole, so as to adjust the cutting angle of the main blades 1A relative to the ground.

[0070] Preferably, the existing quadrilateral design of the luffing mechanism 3 is a combination of a hydraulic cylinder and two parallel connecting rods, which increases motion error and complicates the structure during the linkage transmission process. The present invention replaces the multi-link hinge design with a hydraulic cylinder and a bulldozer blade bracket. The modified luffing mechanism 3 can quickly adjust the height and cutting angle of the main blade 1A. Compared with the existing quadrilateral luffing mechanism 3, it optimizes the transmission accuracy of the multi-link hinge and reduces the debugging time of the multi-link transmission accuracy. The bulldozer blade bracket includes: a bottom connecting rod 1B1, a crossbar 1B2 and a hinge seat 1B3 for the crossbar 1B2; the number of bottom connecting rod 1B1 and hinge seat 1B3 for the crossbar 1B2 are the same, both with two sets.

[0071] One end of each of the two sets of bottom connecting rods 1B1 is connected to the hinge seat 1A1 of the two sets of main shovels 1A respectively, and the other end is hinged to the support seat 3A of the two sets of bulldozer blades respectively. The crossbar 1B2 is fixedly installed between the two sets of bottom connecting rods 1B1. The two sets of hinge seats 1B3 of the crossbar 1B2 are symmetrically installed at both ends of the crossbar 1B2 and are parallel to each other.

[0072] Furthermore, the two sets of crossbar 1B2 hinge seats 1B3 are connected to the two sets of bulldozer blade cylinders 1F respectively via pins. The power output from the two sets of bulldozer blade cylinders 1F is transmitted to the two sets of bottom connecting rods 1B1 through the crossbar 1B2 hinge seats 1B3. This is used to drive the two sets of bottom connecting rods 1B1 to rotate relative to the two sets of bulldozer blade bracket connecting seats 3A, while simultaneously driving the two sets of main blade 1A hinge seats 1A1 and the main blade 1A to move up and down, so as to adjust the overall height of the main blade 1A relative to the ground.

[0073] Referring to the prior art, the luffing mechanism 3 and the bulldozing mechanism 1 of the present invention are connected in an approximately quadrilateral structure. Specifically, the four hinge points are: the upper end of the main shovel 1A hinge seat 1A1 is connected to the adjusting cylinder 1C and the adjusting cylinder 1C connecting seat 3B to form two hinge points at the top; the lower end of the main shovel 1A hinge seat 1A1 is connected to the bulldozer blade bracket and the bulldozer blade bracket connecting seat 3A to form two hinge points at the bottom; and the main shovel 1A hinge seat 1A1 itself and the connection between the bulldozer blade bracket connecting seat 3A, the adjusting cylinder 1C connecting seat 3B and the excavator frame form a quadrilateral connection structure with four points at the top and bottom.

[0074] Among them, the distance from the upper hinge point to the lower hinge point of the two sets of main shovel 1A hinge seats 1A1 is equal to the distance from the two sets of adjusting cylinder 1C connecting seats 3B to the two sets of bulldozer blade bracket connecting seats 3A. At the same time, the lengths of the two sets of bottom connecting rods 1B1 are equal and parallel to each other. At this time, only the power output of the adjusting cylinder 1C is adjusted so that the luffing mechanism 3 and the bulldozing mechanism 1 can quickly achieve a parallelogram connection structure.

[0075] Existing bulldozing devices occupy a large volume of space and are not suitable for long-distance transportation. Therefore, this invention adopts a quick-release structure 5 for the connection of the bulldozing device, which enables rapid disassembly and installation, such as... Figures 6 to 9 The quick-release structure 5 shown includes: positioning pins, positioning holes, type B spring pins 5A, quick-release holes, pin fixing bolts 5C, and hydraulic quick-release connectors; there are four sets of positioning pins, which are respectively inserted into the connecting pins 6 of the crossbar 1B2 hinge seat 1B3 and the bulldozer blade cylinder 1F, and the end of the connecting pin 6 of the main shovel 1A hinge seat 1A1 and the adjusting cylinder 1C. Positioning holes and type B spring pins 5A are provided corresponding to the positioning pins, and the number is equal. The four sets of positioning holes are respectively opened at the ends of the four sets of positioning pins. Spring pins 5A are inserted into positioning holes. There are two sets of quick-release holes. The two sets of quick-release holes are respectively opened on the shaft holes of the two sets of bottom connecting rods 1B1 and corresponding to the hinge seats 1B3 of the two sets of cross rods 1B2. There are two sets of pin fixing bolts 5C. The two sets of pin fixing bolts 5C are respectively fixedly installed at the connecting pins 6 of the two sets of bulldozer blade bracket connecting seats 3A and the two sets of bottom connecting rods 1B1. The hydraulic quick-release joint is fixedly installed on the excavator frame 4 and is respectively connected to the first outrigger cylinder 2C, the second outrigger cylinder 2C and the hydraulic system.

[0076] Preferably, the hydraulic quick-release connector includes: a quick-connect fixing block 5D, a quick-connect movable block 5E, a hydraulic connector, an inlet pipe, and an outlet pipe; the quick-connect fixing block 5D is fixedly installed on the excavator frame 4 and connected to the hydraulic system; the quick-connect movable block 5E abuts against the quick-connect fixing block 5D via a quick-connect handle 5F and is connected to the quick-connect fixing block 5D; there are four sets of hydraulic connectors, which are inserted into the quick-connect movable block 5E and connected to the hydraulic system; the inlet pipe and outlet pipe are provided in two sets for the first outrigger cylinder 2C and the second outrigger cylinder 2C, including: an inlet pipe 5E1 for the first outrigger cylinder 2C, an outlet pipe 5E2 for the first outrigger cylinder 2C, an inlet pipe 5E3 for the second outrigger cylinder 2C, and an outlet pipe 5E4 for the second outrigger cylinder 2C; the two sets of inlet pipes and the two sets of outlet pipes are respectively installed on the four sets of hydraulic connectors and are respectively connected to the first outrigger cylinder 2C and the second outrigger cylinder 2C.

[0077] The quick-connect fixing block 5D has a port that communicates with the hydraulic system. The hydraulic connector is positioned corresponding to the port of the quick-connect fixing block 5D and is used to supply and return oil to the first leg cylinder 2C and the second leg cylinder 2C respectively.

[0078] The two sides of the quick-connect handle 5F are hinged to the two sides of the quick-connect movable block 5E. When the quick-connect handle 5F rotates upward relative to the quick-connect movable block 5E, the two sides of the quick-connect handle 5F simultaneously clamp the two sides of the quick-connect fixed block 5D, fixing the quick-connect movable block 5E onto the quick-connect fixed block 5D. When the quick-connect handle 5F rotates downward relative to the quick-connect movable block 5E, the two sides of the quick-connect handle 5F simultaneously disengage from the two sides of the quick-connect fixed block 5D, disconnecting the quick-connect movable block 5E and the quick-connect fixed block 5D.

[0079] Furthermore, locking nuts 5G are fixedly connected to both sides of the quick-connect handle 5F to position and lock the rotation angle between the quick-connect handle 5F and the quick-connect movable lever, preventing accidental operation.

[0080] Preferably, the system also includes independent control of the oil supply and return of the first outrigger cylinder 2C and the second outrigger cylinder 2C via a hydraulic system, with the height of the first outrigger 2A and the height of the second outrigger satisfying different ground and terrain conditions.

[0081] In summary, the two outriggers are fixed to the main shovel 1A by connecting pins 6, effectively freeing up space in the vehicle body; secondly, the quick-release structure 5 improves the efficiency of modular assembly and disassembly of the whole machine; the outriggers are independently controlled by their respective outrigger cylinders 2C, which can realize the lowering and retraction of the outriggers, and the outriggers on both sides can be controlled separately to adapt to road surfaces with different heights on both sides. Example

[0082] This embodiment provides a method for using a bulldozing device, which, based on the bulldozing device described above, includes:

[0083] The luffing mechanism 3 is adjusted according to the ground and terrain to drive the bulldozing mechanism 1 to adjust the height and cutting angle of the main shovel 1A relative to the ground. After adjustment, the two ends of the bulldozing mechanism 1 and the two ends of the luffing mechanism 3 form parallelogram connection structures. The power ends of the two sets of adjusting cylinders 1C are respectively hinged to the symmetrical holes at the upper ends of the two sets of main shovel 1A hinge seats 1A1 via pins. The power of the two sets of adjusting cylinders 1C directly drives the upper ends of the two sets of main shovel 1A hinge seats 1A1 to rotate, thereby driving the main shovel 1A to rotate as a whole to adjust the cutting angle of the main shovel 1A relative to the ground. The power output from the two sets of bulldozer blade cylinders 1F is transmitted to the two sets of bottom connecting rods 1B1 through the hinge seat 1B3 of the crossbar 1B2. This is used to drive the two sets of bottom connecting rods 1B1 to rotate relative to the two sets of bulldozer blade support connecting seats 3A, while simultaneously driving the two sets of main blade 1A hinge seats 1A1 and the main blade 1A to move up and down, so as to adjust the overall height of the main blade 1A relative to the ground. After the cutting angle and height of the main blade 1A relative to the ground are adjusted, the two ends of the bulldozer mechanism 1 are connected to the two ends of the luffing mechanism 3 through the bulldozer support 1B, the adjusting cylinder 1C, the bulldozer blade cylinder 1F, and the two ends of the luffing mechanism 3, respectively, forming a parallelogram connection structure.

[0084] When the bulldozing mechanism 1 and the luffing mechanism 3 are connected by a parallelogram structure, the two sets of outrigger hinge seats 2D, the two sides of the first outrigger 2A and the second outrigger in the support mechanism 2 are respectively perpendicular to the ground and the two sets of outrigger discs 2B are parallel to the ground; wherein, the power output by the first outrigger cylinder 2C and the second outrigger cylinder 2C respectively drives the first outrigger 2A and the second outrigger to rotate relative to the two sets of outrigger hinge seats 2D, so as to adjust the height of the two sets of outrigger discs 2B, thereby achieving ground support for both sides of the bulldozing mechanism 1 and the luffing mechanism 3;

[0085] In addition, the lifting and lowering of the first outrigger 2A and the second outrigger are independently controlled according to the ground height and terrain corresponding to the first outrigger 2A and the second outrigger, so as to adapt the first outrigger 2A and the second outrigger to the road surface with different heights on both sides of the bulldozer mechanism 1, and increase the stability of the working range of the bulldozer mechanism 1 on ground at different heights.

[0086] After the first leg 2A and the second leg are fixed to the ground, they can support the bulldozing mechanism 1 and the luffing mechanism 3, reduce the motion error of the hinge point and each mechanism, and reduce swaying, so that the working range of the bulldozing device is stabilized within the preset range. Example

[0087] This embodiment provides a method for dismantling a bulldozing device, based on the bulldozing device described above, including:

[0088] For the disassembly of the bulldozing mechanism 1 and the luffing mechanism 3, firstly, pull out the four sets of B-type spring pins 5A in the quick-release structure 5, and then pull out the positioning pins acted by the B-type spring pins 5A to release the limiting on the connecting pin 6 between the crossbar 1B2 hinge seat 1B3 and the bulldozer blade cylinder 1F, and the end of the connecting pin 6 between the main blade 1A hinge seat 1A1 and the adjusting cylinder 1C, thereby releasing the fixed connection between the adjusting cylinder 1C and the main blade 1A, and between the bulldozer blade cylinder 1F and the bulldozer blade bracket.

[0089] To disassemble the bulldozer mechanism 1 from the excavator frame, the connection between the bulldozer mechanism 1 and the excavator frame can be released by applying the pin fixing bolts 5C at the connecting pins 6 of the two sets of bulldozer blade bracket connecting seats 3A and the two sets of bottom connecting rods 1B1.

[0090] For the disassembly of the excavator hydraulic system and support device, after hydraulic unloading and the hydraulic system stops operating, the quick-connect fixed block 5D and quick-connect movable block 5E are separated by applying the locking nut 5G and changing the direction of the quick-connect handle 5F, thereby achieving the rapid separation of the support device cylinder from the excavator hydraulic system and the excavator frame.

[0091] Combination Figures 6 to 9 The disassembly process is further explained as follows:

[0092] like Figure 6 Pull out the type B spring pin 5A in the direction of the arrow; pull out the positioning pin 5B in the direction of the arrow; pull out the connecting pin 6 of the main shovel 1A adjusting cylinder 1C in the direction of the arrow; this will disconnect the adjusting cylinder 1C from the main shovel 1A.

[0093] like Figure 7Remove the B-type spring pin 5A in the direction of the arrow; remove the positioning pin 5B in the direction of the arrow; use an iron bar to pass through the quick-release hole on the bulldozer bracket 1B, and knock off the connecting pin 6 of the bulldozer blade cylinder 1F in the direction of the arrow; this will disconnect the connection between the bulldozer blade cylinder 1F and the bulldozer bracket 1B.

[0094] like Figure 8 Unscrew the pin fixing bolt 5C; knock off the bulldozer bracket 1B frame connecting pin 6 in the direction of the arrow; the connection between the frame and the bulldozer bracket 1B will be released.

[0095] like Figure 9 Pull down the quick-release handle and remove the quick-release block 5E in the direction of the arrow to disconnect the hydraulic cylinder from the frame. Lock the nut 5G to prevent accidental operation. After completing the above operations, the bulldozer blade can be separated from the frame.

[0096] In summary, when the luffing mechanism 3 and the bulldozing mechanism 1 are adjusted to a parallelogram shape, the support mechanism 2 is made perpendicular to the ground. By adjusting the lifting and lowering of the support mechanism 2, ground support can be provided at the connection points of the luffing mechanism 3 and the bulldozing mechanism 1, thereby increasing the stability of the bulldozing mechanism 1's operating range. The luffing mechanism 3 and the bulldozing mechanism 1 adopt a quadrilateral structure, where the distances of three sides remain constant. Only the length of the connecting structure adjusting cylinder 1C needs to be adjusted to be equal to the lengths of the two hinge points of the bulldozing bracket 1B, which can quickly achieve the parallelogram shape of the luffing mechanism 3 and the bulldozing mechanism 1. This results in a short adjustment cycle and... The adjusted working range stability is higher than that of the existing four-sided luffing mechanism 3; the two outriggers are independently controlled by their respective outrigger cylinders 2C to adapt to road surfaces with different heights on both sides; the main shovel 1A remains in the same posture under the parallelogram shape, and the outriggers also remain in the same posture on the ground when the bulldozer blade is at different heights, ensuring the support stability of the outriggers; the outrigger disc 2B is connected to the outriggers by a ball joint, which is better able to adapt to uneven road surfaces and further improves the support stability; compared with the solution of assembling the outriggers on the vehicle body, arranging the outriggers on the bulldozer blade effectively frees up vehicle body space and also improves the efficiency of modular assembly and disassembly of the whole machine;

[0097] In addition, the quick-release structure 5 can quickly disassemble the bulldozing mechanism 1 and the luffing mechanism 3, the bulldozing mechanism 1 and the excavator frame, and the excavator hydraulic system and support device, while also shortening the installation time, reducing the installation difficulty and the later maintenance cost.

[0098] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0099] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A bulldozing device, characterized in that, include: The bulldozing mechanism is hinged to the excavator, the luffing mechanism is driven by the bulldozing mechanism, and the support mechanism is symmetrically installed between the luffing mechanism and the bulldozing mechanism and in contact with the ground. The support mechanism includes: two sets of outrigger hinge seats symmetrically and fixedly installed at the connection between the luffing mechanism and the bulldozing mechanism; a first outrigger and a second outrigger respectively hinged to the two sets of outrigger hinge seats by two connecting pins; a first outrigger cylinder and a second outrigger cylinder respectively hinged at one end to the two sets of outrigger hinge seats and at the other end to the first outrigger and the second outrigger; and two sets of outrigger discs respectively fixedly installed at the ends of the first outrigger and the second outrigger away from the outrigger hinge seats. The power output from the first and second outrigger cylinders respectively drives the first and second outriggers to rotate relative to the two sets of outrigger hinge seats, so as to adjust the height of the two sets of outrigger discs and provide ground support for both sides of the bulldozing mechanism and the luffing mechanism. The luffing mechanism and the bulldozing mechanism are connected by a quadrilateral structure. When the luffing mechanism and the bulldozing mechanism form a parallelogram connection structure, the support mechanism is perpendicular to the ground, achieving the best effect of ground support for the luffing mechanism and the bulldozing mechanism. The bulldozing mechanism includes: a main shovel, and a bulldozing shovel bracket with one end hinged to the back of the main shovel and the other end hinged to the luffing mechanism. The main shovel has a first side shovel and a second side shovel fixedly connected to its two ends respectively; two sets of main shovel hinge seats are fixedly connected to the two ends of the back of the main shovel, and the upper and lower ends of the main shovel hinge seats are provided with symmetrical holes for connecting to the bulldozer blade support and the luffing mechanism respectively through pins; the outer side of the main shovel hinge seat is also fixedly connected to the outrigger hinge seat for providing ground support for the luffing mechanism and the bulldozer blade support. The quadrilateral connection structure between the luffing mechanism and the bulldozing mechanism includes: a top two-point hinge formed by connecting the upper end of the main shovel hinge seat to the adjusting cylinder and the adjusting cylinder connecting seat; a bottom two-point hinge formed by connecting the lower end of the main shovel hinge seat to the bulldozer blade bracket and the bulldozer blade bracket connecting seat; and a quadrilateral connection structure with four points at the top and bottom formed by connecting the main shovel hinge seat itself and the bulldozer blade bracket connecting seat, the adjusting cylinder connecting seat and the excavator frame. The distance from the upper hinge point to the lower hinge point of each of the two sets of main shovel hinge seats is equal to the distance from the two sets of adjusting cylinder connecting seats to the two sets of bulldozer blade support connecting seats. One end of each of the two sets of bottom connecting rods is connected to the two sets of main shovel hinge seats, and the other end is hinged to the two sets of bulldozer blade support connecting seats. At the same time, the lengths of the two sets of bottom connecting rods are equal and parallel to each other. At this time, only the power output of the adjusting cylinder is adjusted so that the luffing mechanism and the bulldozing mechanism can quickly achieve a parallelogram connection structure.

2. The bulldozing device according to claim 1, characterized in that, The first leg and the second leg each include: a first leg side plate and a second leg side plate arranged symmetrically, an upper leg sealing plate and a lower leg sealing plate respectively fixedly connected between the first leg side plate and the second leg side plate, a ball stick inserted between the upper leg sealing plate and the lower leg sealing plate, a base plate hinged to the spherical end of the ball stick, and a fixing plate fixedly connected to the hinge point between the base plate and the ball stick.

3. The bulldozing device according to claim 2, characterized in that, The top of the base plate has a groove for receiving a spherical end, and the bottom diameter of the base plate is larger than the top diameter of the base plate. The fixing plate is radially fixed to the opening of the groove by several fixing bolts, and the diameter of the fixing plate and the ball stick insertion point is smaller than the diameter of the spherical end, in order to prevent the spherical end of the ball stick from falling off the base plate.

4. The bulldozing device according to claim 1, characterized in that, The luffing mechanism includes: two sets of bulldozer blade bracket connecting seats that are fixedly installed on the excavator frame and connected to the bulldozer blade bracket respectively; two sets of adjusting cylinder connecting seats that are fixedly installed on the excavator frame respectively; two sets of bulldozer blade cylinder connecting seats that are fixedly installed on the excavator frame respectively; an adjusting cylinder that is connected at one end to the main blade hinge seat and at the other end to the adjusting cylinder connecting seat; and a bulldozer blade cylinder that is hinged at one end to the bulldozer blade bracket and at the other end to the bulldozer blade cylinder connecting seat. The number of the adjusting cylinder and the bulldozer blade cylinder is two sets, and the adjusting cylinder and the bulldozer blade cylinder are arranged in parallel. The power ends of the two sets of adjusting cylinders are respectively hinged to the symmetrical holes at the upper end of the two sets of main shovel hinge seats by pins. The power of the two sets of adjusting cylinders directly drives the upper end of the two sets of main shovel hinge seats to rotate, thereby driving the main shovel to rotate as a whole, so as to adjust the cutting angle of the main shovel relative to the ground.

5. The bulldozing device according to claim 4, characterized in that, The bulldozer blade support includes: a crossbar fixedly installed between two sets of bottom connecting rods, and two sets of parallel crossbar hinge seats symmetrically installed at both ends of the crossbar; The two sets of horizontal bar hinge seats are connected to the two sets of bulldozer blade cylinders respectively via pins. The power output from the two sets of bulldozer blade cylinders is transmitted to the two sets of bottom connecting rods through the horizontal bar hinge seats. This is used to drive the two sets of bottom connecting rods to rotate relative to the two sets of bulldozer blade bracket connecting seats, while simultaneously driving the two sets of main blade hinge seats and the main blade to move up and down, so as to adjust the overall height of the main blade relative to the ground.

6. The bulldozing device according to claim 5, characterized in that, It also includes a quick-release structure, which comprises: four sets of positioning pins respectively inserted into the connecting pins of the crossbar hinge seat and the bulldozer blade cylinder and the connecting pin of the main shovel hinge seat and the adjusting cylinder; four sets of positioning holes respectively opened at the ends of the four sets of positioning pins; four sets of B-type spring pins respectively inserted into the four sets of positioning holes; two sets of quick-release holes respectively opened on the two sets of bottom connecting rods and corresponding to the shaft holes of the two sets of crossbar hinge seats; pin fixing bolts respectively fixedly installed at the connecting pins of the two sets of bulldozer blade bracket connecting seats and the two sets of bottom connecting rods; and hydraulic quick-release connectors fixedly installed on the excavator frame and respectively connected to the first outrigger cylinder, the second outrigger cylinder and the hydraulic system.

7. The bulldozing device according to claim 6, characterized in that, The hydraulic quick-release connector includes: a quick-release fixing block fixedly installed on the excavator frame and connected to the hydraulic system; a quick-release movable block abutting against the quick-release fixing block and communicating with the quick-release fixing block via a quick-release handle; four sets of hydraulic connectors inserted into the quick-release movable block and connected to the hydraulic system; and two sets of oil inlet pipes and two sets of oil outlet pipes respectively installed on the four sets of hydraulic connectors and respectively connected to the first outrigger cylinder and the second outrigger cylinder. The quick-connect fixing block has an opening for communication with the hydraulic system, and the hydraulic connector is positioned corresponding to the opening of the quick-connect fixing block, and is used to supply oil to the first leg cylinder and the second leg cylinder respectively. The two sides of the quick-connect handle are hinged to the two sides of the quick-connect movable block. When the quick-connect handle rotates upward relative to the quick-connect movable block, the two sides of the quick-connect handle clamp onto the two sides of the quick-connect fixed block, fixing the quick-connect movable block onto the quick-connect fixed block. When the quick-connect handle rotates downward relative to the quick-connect movable block, the two sides of the quick-connect handle disengage from the two sides of the quick-connect fixed block, disconnecting the quick-connect movable block and the quick-connect fixed block.

8. The bulldozing device according to claim 7, characterized in that, Locking nuts are also fixedly connected to both sides of the quick-connect handle to position and lock the rotation angle between the quick-connect handle and the quick-connect movable step, preventing accidental operation.

9. The bulldozing device according to claim 7, characterized in that, It also includes the independent control of the oil supply and return of the first and second outrigger cylinders via a hydraulic system, to accommodate different ground and terrain conditions at which the heights of the first and second outriggers are required.

10. A method of using a bulldozing device, characterized in that, Based on the bulldozing device according to any one of claims 1-9, it comprises: Adjust the luffing mechanism according to the ground and terrain, so that the luffing mechanism drives the bulldozing mechanism to adjust the height of the main shovel and the cutting angle of the main shovel relative to the ground; and after adjustment, the two ends of the bulldozing mechanism and the two ends of the luffing mechanism form a parallelogram connection structure respectively. When the bulldozing mechanism and the luffing mechanism are connected by a parallelogram structure, the two sets of outrigger hinge seats in the support mechanism, the two sides of the first outrigger and the second outrigger are respectively perpendicular to the ground, and the two sets of outrigger discs are parallel to the ground. The raising and lowering of the first and second outriggers are independently controlled according to the ground height and terrain corresponding to the first and second outriggers, so as to enable the first and second outriggers to adapt to the different road surfaces on both sides of the bulldozer mechanism and increase the stability of the bulldozer mechanism's working range on ground at different heights.

11. A method for dismantling a bulldozing device, characterized in that, The bulldozing device according to claim 7 includes: For disassembling the bulldozing mechanism and luffing mechanism, firstly, pull out the four sets of B-type spring pins in the quick-release structure, then pull out the positioning pins acted upon by the B-type spring pins. This releases the limiting action on the connecting pins between the crossbar hinge seat and the bulldozer blade cylinder, and at the end of the connecting pin between the main blade hinge seat and the adjusting cylinder. This releases the fixed connection between the adjusting cylinder and the main blade, and between the bulldozer blade cylinder and the bulldozer blade bracket. To disassemble the bulldozer mechanism from the excavator frame, the connection between the bulldozer mechanism and the excavator frame can be released by applying the pin fixing bolts at the connecting pins of the two sets of bulldozer blade bracket connecting seats and the two sets of bottom connecting rods. For the disassembly of the excavator hydraulic system and support device, after hydraulic unloading and the hydraulic system stops operating, the quick-connect fixed block and quick-connect movable block are separated by applying the locking nut and changing the direction of the quick-connect handle, thereby achieving rapid separation of the support device cylinder from the excavator hydraulic system and the excavator frame.

Images