Middle slotting and stirring all-in-one machine

Abstract

The invention relates to the technical field of underground diaphragm wall construction equipment, in particular to a centrally-mounted slotting and stirring all-in-one machine which comprises two gantry stand column assemblies, a box-type rail chain cutter assembly, a platform support and a crawler chassis assembly, the length of the gantry stand column assemblies can be increased or decreased in the vertical direction, and the two gantry stand column assemblies are arranged in a left-right spaced mode; the box type rail chain cutter assembly is arranged between the two gantry stand column assemblies. The box type rail chain cutter assembly is located in the middle of the two gantry stand column assemblies, compared with a traditional box type rail chain cutter assembly which is arranged in an offset mode, the grounding specific pressure can be remarkably reduced, stress on the two sides of the cutting groove is balanced, and the situation that due to stress unbalance of the two sides of the cutting groove, a foundation collapses is avoided. Compared with a box-type rail chain cutter assembly which is arranged in an offset mode, the equipment has the lower requirement for the bearing capacity of a foundation during construction operation, and the equipment can be suitable for working environments such as reservoirs and dams with the small soil bearing capacity.

Description

Technical Field

[0001] The invention relates to the technical field of underground continuous wall construction equipment, in particular to a centrally mounted slotting and mixing integrated machine. Background Art

[0002] The underground continuous wall is a foundation project that uses a trenching machine on the ground to dig a long and narrow cutting groove along the peripheral axis of the deep excavation project under the condition of mud wall protection. After the groove is cleared, a steel cage is suspended in the groove, and then underwater concrete is poured through the conduit method to build a unit groove section. This process is carried out section by section to build a continuous reinforced concrete wall underground as a water interception, anti-seepage, load-bearing and water retaining structure.

[0003] The conventional underground continuous wall forming equipment (TRD method machine equipment) known at present is composed of a complete machine chassis, a supporting device, a cutting device, a box device and a power device, etc. For example, the Chinese invention patent application with application publication number CN115897551A discloses a continuous wall construction equipment and construction method based on a TRD method drilling machine. The cutting device of the equipment is arranged sideways with the center of gravity biased to the front side, which is easy to cause the supporting foundation to collapse. Summary of the invention

[0004] Based on this, it is necessary to provide a centrally mounted slotting and mixing integrated machine to address the problems existing in the current continuous wall forming equipment, so as to solve the problem that the center of gravity of the existing continuous wall construction equipment is offset and the supporting foundation is prone to collapse when in use.

[0005] The above purpose is achieved through the following technical solutions: A central slotted mixing machine comprises: A gantry column assembly, the length of which can be extended or shortened in the vertical direction, and there are two gantry column assemblies which are spaced apart on the left and right sides; A box-type rail chain tool assembly, which is arranged in the middle of two gantry column assemblies; Platform brackets, there are two platform brackets and they are respectively arranged at the bottom of the two gantry column assemblies; The crawler chassis assembly has two crawler chassis assemblies which are respectively arranged on the outsides of the two platform brackets.

[0006] In one of the embodiments, the gantry column includes a hydraulic telescopic gantry column body and an upper beam frame, wherein the upper beam frame is arranged at the telescopic end of the hydraulic telescopic gantry column body, and the two upper beam frames are connected via a pressure balancing component.

[0007] In one embodiment, the pressure balancing assembly includes a first linear tooth groove, a second linear tooth groove, an intermediate gear, an intermediate connecting plate and a connecting piece, the first linear tooth groove is opened on the right side surface of the upper beam frame on the left, the second linear tooth groove is opened on the left side surface of the upper beam frame on the right, the intermediate connecting plate is arranged on the front and rear sides of the upper beam frame, the intermediate connecting plate and the two upper beam frames are connected by elastic telescopic guide columns, the axis of the elastic telescopic guide columns is vertical, the intermediate gear is rotatably arranged on the intermediate connecting plate, the left and right sides of the intermediate gear are respectively meshed with the first linear tooth groove and the second linear tooth groove, and the box-type track chain tool assembly is connected to the bottom of the intermediate gear through a connecting piece.

[0008] In one of the embodiments, the platform support includes a first side support frame and a second side support frame, there are two first side support frames, the two first side support frames are spaced apart from each other, there are four second side support frames, the four second side support frames are divided into two groups, front and rear, one ends of the two second side support frames in the front group slide and abut against each other, the other ends of the two second side support frames in the front group are arranged in front of the corresponding first side support frame, one ends of the two second side support frames in the rear group slide and abut against each other, the other ends of the two second side support frames in the rear group are arranged in the rear of the corresponding first side support frame.

[0009] In one embodiment, a cab is arranged on the first side support frame on the left side.

[0010] In one of the embodiments, a hydraulic rod is provided between the lower part of the hydraulic telescopic gantry column and the upper beam frame, and the axis of the hydraulic rod is vertical.

[0011] In one embodiment, the box-type track chain tool assembly includes a power cutter head part, a cutter tail part, a track block part and a cutter chain part. The power cutter head part is connected to the bottom of the intermediate gear through a connecting piece, the track block part is arranged at the bottom of the power cutter head part, the cutter tail part is connected to the bottom of the track block part, and the cutter chain part is transmission-connected to the outside of the power cutter head part, the track block part and the cutter tail part.

[0012] In one embodiment, the track block part includes an upper track block part, a lower track block part and a plurality of intermediate track block parts, a card block is provided at the lower end of the upper track block part, a card slot is provided at the upper end of the lower track block part, a card slot is provided at the upper end of the intermediate track block part, and a card block is provided at the lower end of the intermediate track block part, and the card block and the card slot can be connected with each other.

[0013] In one of the embodiments, a power control system module is disposed on the platform bracket, and the power control system module is electrically connected to the power cutter head part, the crawler chassis assembly and the gantry column assembly.

[0014] In one embodiment, the track chassis assembly includes two track modules and two power sources. The two track modules are spaced apart from each other. The two power sources are respectively arranged in the two track modules. The track modules are independently driven by the power sources inside them.

[0015] The beneficial effects of the present invention are: 1. The present invention locates the box-type rail chain tool assembly in the middle of the two gantry column assemblies. Compared with the traditional offset placement of the box-type rail chain tool assembly, it can significantly reduce the ground pressure ratio, so that the forces on both sides of the cutting groove are balanced, thus avoiding the foundation collapse caused by the unbalanced forces on both sides of the cutting groove.

[0016] 2. The present invention is provided with a pressure balancing component. When the bearing capacities of the soils contacted by the two crawler chassis assemblies are different, under the meshing action of the intermediate gear, the card slot and the second straight tooth groove, the crawler chassis assembly located on the soil with smaller bearing capacity moves downward horizontally relative to the crawler chassis assembly on the soil with larger bearing capacity until the pressures between the two crawler chassis assemblies and the soil are the same. During this process, the two upper beams are always kept vertical, so that the box-type track chain tool assembly can always be in a vertical state, thereby ensuring that the cutting groove is vertical and avoiding the problem of deviation between the actual cutting size and the target cutting size. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of a centrally-mounted slotted mixing machine of the present invention; Figure 2 It is a front view of a centrally-mounted slotted mixing machine of the present invention; Figure 3 It is a side view of a central slotted mixing machine of the present invention; Figure 4 It is a schematic diagram of the position of a box-type rail chain tool assembly in a central slotting and mixing integrated machine of the present invention; Figure 5 for Figure 4 Middle AA section view; Figure 6 for Figure 4 Right view of; Figure 7 for Figure 6 Middle BB section view.

[0018] in: 100, gantry column assembly; 110, hydraulic telescopic gantry column; 120, upper beam; 130, pressure balance assembly; 131, first linear tooth groove; 132, second linear tooth groove; 133, intermediate gear; 134, intermediate connecting plate; 135, elastic telescopic guide column; 136, connecting piece; 140, hydraulic rod; 200, box-type track chain tool assembly; 210, power tool head part; 220, tool tail part; 230, track block part; 231, slot; 232, block; 233, upper track block part; 234, middle track block part; 235, lower track block part; 240, tool chain part; 300, platform bracket; 310, first side support frame; 320, second side support frame; 330, cab; 400, crawler chassis assembly; 410, crawler module; 420, power source. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] like Figure 1-Figure 7As shown, a central slotting and mixing machine includes a gantry column assembly 100, a box-type rail chain tool assembly 200, a platform bracket 300 and a crawler chassis assembly 400. The length of the gantry column assembly 100 can be extended or shortened in the vertical direction. There are two gantry column assemblies 100 and they are arranged at intervals on the left and right. The box-type rail chain tool assembly 200 is arranged in the middle of the two gantry column assemblies 100. The extension of the gantry column assembly 100 is used to drive the box-type rail chain tool assembly 200 to move upward, so that the box-type rail chain tool assembly The part 200 is moved out of the cutting groove, the shortening of the gantry column assembly 100 is used to drive the box-type track chain tool assembly 200 to move downward, so that the box-type track chain tool assembly 200 extends into the cutting groove, there are two platform brackets 300 and they are respectively arranged at the bottom of the gantry column assembly 100, the platform bracket 300 is used to support the bottom of the gantry column assembly 100 to keep the equipment vertical, there are two crawler chassis assemblies 400 and they are respectively arranged on the outside of the platform brackets 300, the crawler chassis assembly 400 is used to drive the equipment to move.

[0023] It is understandable that the box-type rail chain tool assembly 200 in the present device is located in the middle of the two gantry column assemblies 100. Compared with the offset placement of the traditional box-type rail chain tool assembly 200, it can significantly reduce the ground pressure ratio, so that the forces on both sides of the cutting groove are balanced, avoiding the foundation collapse caused by the imbalance of forces on both sides of the cutting groove. In addition, compared with the offset placement of the box-type rail chain tool assembly 200, the present device sets the box-type rail chain tool assembly 200 to the middle of the two gantry column assemblies 100, and the bearing capacity requirements of the foundation during construction are lower, which can be used in working environments with relatively small soil bearing capacity such as reservoir dams. Moreover, since the box-type rail chain tool assembly 200 is located in the middle of the two gantry column assemblies 100, the overall size of the equipment is small, and the corresponding floor space is also smaller than that of traditional equipment, which can achieve slotting and mixing to form a continuous wall when the site is limited.

[0024] In a further embodiment, Figure 2 and Figure 7As shown, the gantry column assembly 100 includes a hydraulic telescopic gantry column 110 and an upper beam frame 120, the upper beam frame 120 is arranged at the telescopic end of the hydraulic telescopic gantry column 110, and the two upper beam frames 120 are connected by a pressure balance assembly 130, and the pressure balance assembly 130 includes a first linear tooth groove 131, a second linear tooth groove 132, an intermediate gear 133, an intermediate connecting plate 134 and a connecting piece 136, the first linear tooth groove 131 is opened on the right side surface of the upper beam frame 120 on the left, the second linear tooth groove 132 is opened on the left side surface of the upper beam frame 120 on the right, the intermediate connecting plate 134 is arranged on the front and rear sides of the upper beam frame 120, and the intermediate connecting plate 134 and the two upper beam frames 120 are elastically telescopic. The guide column 135 is connected, and the axis of the elastic telescopic guide column 135 is vertical. Specifically, the elastic telescopic guide column 135 includes a telescopic rod and a spring. One end of the telescopic rod is connected to the middle connecting plate 134, and the other end is connected to the upper beam frame 120. The spring is sleeved on the outside of the telescopic rod and the two ends of the spring are respectively connected to the two ends of the telescopic rod. The intermediate gear 133 is rotatably set on the middle connecting plate 134, and the left and right sides of the intermediate gear 133 are respectively engaged with the first linear tooth groove 131 and the second linear tooth groove 132. The box-type rail chain tool assembly 200 is connected to the bottom of the intermediate gear 133 through a connecting piece 136, so that the axis of the hydraulic telescopic gantry column 110 and the extension line of the length direction of the box-type rail chain tool assembly 200 can always be parallel.

[0025] Whether the box-type rail chain tool assembly 200 is always in a vertical state when grooving is the key to ensuring the construction quality of the cutting groove. Once the box-type rail chain tool assembly 200 is tilted, the cutting groove cut by the box-type rail chain tool assembly 200 will inevitably no longer be vertical, which will cause a deviation between the actual cutting size and the target cutting size, affecting the construction quality. In actual operation, the tilt of the box-type rail chain tool assembly 200 is often due to the different bearing capacity of the ground contacted by the two crawler chassis assemblies 400, causing the two crawler chassis assemblies 400 to tilt to one side. The tilt of the crawler chassis assembly 400 causes the two gantry column assemblies 100 to tilt, which in turn causes the box-type rail chain tool assembly 200 to tilt. To solve this problem, a pressure balancing assembly 130 is provided between the two upper beams 120. Specifically, when the bearing capacity of the soil contacted by the two track chassis assemblies 400 is different, under the meshing action of the intermediate gear 133, the slot 231 and the second straight tooth groove 132, the track chassis assembly 400 located on the soil with smaller bearing capacity moves downward horizontally relative to the track chassis assembly 400 located on the soil with larger bearing capacity until the pressure between the two track chassis assemblies 400 and the soil is the same. During this process, the two upper beams 120 always remain vertical, so that the box-type track chain tool assembly 200 can always be in a vertical state, thereby ensuring that the cutting groove is vertical, avoiding the problem of deviation between the actual cutting size and the target cutting size.

[0026] In a further embodiment, Figure 1 As shown, the platform bracket 300 includes a first side support frame 310 and a second side support frame 320, there are two first side support frames 310, and the two first side support frames 310 are arranged at intervals on the left and right, there are four second side support frames 320, and the four second side support frames 320 are evenly divided into two groups, front and rear, one ends of the two second side support frames 320 of the front group slide and abut against each other, and the other ends of the two second side support frames 320 of the front group are arranged in front of the corresponding first side support frame 310, one ends of the two second side support frames 320 of the rear group slide and abut against each other, and the other ends of the two second side support frames 320 of the rear group are arranged at the rear of the corresponding first side support frame 310.

[0027] The first side support frame 310 and the second side support frame 320 corresponding to the two platform supports 300 are used to connect to form a rectangular area to support the lower part of the hydraulic telescopic gantry column 110 and increase the stability of the bottom of the hydraulic telescopic gantry column 110; the two second side support frames 320 located at the same end of the two platform supports 300 are slidably abutted to adapt to the situation where the two crawler chassis assemblies 400 can move downward relatively horizontally, ensuring that the two second side support frames 320 located at the same end of the hydraulic telescopic gantry column 110 can move relative to each other in the vertical direction while also supporting each other in the horizontal direction.

[0028] In a further embodiment, Figure 1 As shown, a cab 330 is provided on the first side support frame 310 on the left side, and the cab 330 is used for the staff to drive the equipment to move.

[0029] In a further embodiment, Figure 2 As shown, a hydraulic rod 140 is arranged between the lower part of the hydraulic telescopic gantry column 110 and the upper beam frame 120. The axis of the hydraulic rod 140 is vertical. The hydraulic rod 140 is added to assist the hydraulic telescopic gantry column 110 in supporting and enhancing stability.

[0030] In a further embodiment, Figure 5 As shown, the track block portion 230 includes an upper track block portion 233, a lower track block portion 235 and multiple intermediate track block portions 234, a clamping block 232 is provided at the lower end of the upper track block portion 233, a clamping slot 231 is provided at the upper end of the lower track block portion 235, a clamping slot 231 is provided at the upper end of the intermediate track block portion 234, a clamping block 232 is provided at the lower end of the intermediate track block portion 234, the clamping block 232 and the clamping slot 231 can be clamped with each other, and the clamping block 232 and the clamping slot 231 are provided for quickly connecting multiple intermediate track block portions 234 together.

[0031] In a further embodiment, Figure 5As shown, the box-type rail chain tool assembly 200 includes a power cutter head portion 210, a cutter tail portion 220, a track block portion 230 and a cutter chain portion 240. The power cutter head portion 210 is connected to the lower portion of the intermediate gear 133 through a connecting member 136. Specifically, the power cutter head portion 210 includes a driving sprocket and a driving motor. The output shaft of the driving motor is coaxially connected to the driving sprocket. The driving motor is arranged on the connecting member 136. The track block portion 230 is arranged below the power cutter head portion 210. Specifically, The power cutter head part 210 is connected to the upper track block part 233, and the cutter tail part 220 is connected to the bottom of the track block part 230. Specifically, the cutter tail part 220 is connected to the lower track block part 235. The cutter chain part 240 is transmission-connected to the outside of the power cutter head part 210, the track block part 230 and the cutter tail part 220. The power cutter head part 210, the cutter tail part 220 and the track block part 230 can be spliced ​​into one piece to provide guide support for the circumferential rotation of the cutter chain part 240.

[0032] When the cutting groove is cut downward, the hydraulic telescopic gantry column 110, the hydraulic rod 140 and the power cutter head part 210 are started, so that the hydraulic telescopic gantry column 110 and the hydraulic rod 140 are contracted, thereby making the box-type rail chain tool assembly 200 go deeper into the ground. Under the rotation of the power cutter head part 210, the knife chain part 240 rotates circumferentially to cut a vertical cutting groove on the ground. When the box-type rail chain tool assembly 200 needs to be moved out of the cutting groove, the hydraulic telescopic gantry column 110 and the hydraulic rod 140 are extended, thereby driving the box-type rail chain tool assembly 200 to move upward and move the box-type rail chain tool assembly 200 out of the cutting groove.

[0033] It should also be noted that in order to realize grooving, concrete pouring and mixing in one, in the prior art, a concrete pouring cavity is often opened in the track block part 230, and a pouring hole connected to the concrete pouring cavity is opened on the peripheral wall of the track block part 230. After the soil in the cutting hole is discharged, the external concrete delivery pipe is connected to the concrete pouring cavity, concrete slurry is added to the concrete pouring cavity, and the concrete slurry is poured into the cutting groove through the pouring hole. The concrete slurry is stirred by the circumferential rotation of the knife chain part 240. After the concrete slurry is evenly stirred, the box-type track chain tool assembly 200 is moved out of the cutting groove.

[0034] It should also be noted that if the cutting depth of the current box-type track chain tool assembly 200 is less than the target depth, in the prior art, the knife chain portion 240 is usually disengaged, the connection between the power cutter head portion 210 and the track block portion 230 is disassembled, and after adding an appropriate number of track block portions 230, the power cutter head portion 210 and the track block portion 230 are spliced ​​into one piece to increase the overall length of the box-type track chain tool assembly 200, and then the appropriate length of the knife chain portion 240 is added, and finally the knife chain portion 240 is connected end to end.

[0035] In a further embodiment, a power control system module (not shown in the figure) is provided on the platform bracket 300, and the power control system module is electrically connected to the power cutter head part 210, the crawler chassis assembly 400 and the gantry column assembly 100, so as to independently control the actions of the power cutter head part 210, the crawler chassis assembly 400 and the gantry column assembly 100.

[0036] In a further embodiment, Figure 3 As shown, the track chassis assembly 400 includes two track modules 410 and two power sources 420. The two track modules 410 are arranged at intervals on the left and right, and the two power sources 420 are respectively arranged in the two track modules 410. The track modules 410 are independently driven by the power sources 420 inside them.

[0037] The two power sources 420 are provided to independently control the two track modules 410 to adapt to the situation where the two track modules 410 are not at the same level.

[0038] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A central slotted mixing machine, characterized in that: include: A gantry column assembly, the length of which can be extended or shortened in the vertical direction, and there are two gantry column assemblies which are spaced apart on the left and right sides; A box-type rail chain tool assembly, which is arranged in the middle of two gantry column assemblies; Platform brackets, there are two platform brackets and they are respectively arranged at the bottom of the two gantry column assemblies; The crawler chassis assembly has two crawler chassis assemblies which are respectively arranged on the outsides of the two platform brackets.

2. A central slotted mixing machine according to claim 1, characterized in that: The gantry column comprises a hydraulic telescopic gantry column body and an upper beam frame, wherein the upper beam frame is arranged at the telescopic end of the hydraulic telescopic gantry column body, and the two upper beam frames are connected via a pressure balancing component.

3. A central slotted mixing machine according to claim 2, characterized in that: The pressure balancing assembly includes a first linear tooth groove, a second linear tooth groove, an intermediate gear, an intermediate connecting plate and a connecting piece. The first linear tooth groove is opened on the right side surface of the upper beam frame on the left, and the second linear tooth groove is opened on the left side surface of the upper beam frame on the right. The intermediate connecting plate is arranged on the front and rear sides of the upper beam frame. The intermediate connecting plate and the two upper beam frames are connected by elastic telescopic guide columns. The axis of the elastic telescopic guide columns is vertical. The intermediate gear is rotatably arranged on the intermediate connecting plate. The left and right sides of the intermediate gear are respectively meshed with the first linear tooth groove and the second linear tooth groove. The box-type track chain tool assembly is connected to the bottom of the intermediate gear through a connecting piece.

4. The central slotted mixing machine according to claim 2, characterized in that: The platform bracket includes a first side support frame and a second side support frame, there are two first side support frames, the two first side support frames are arranged at intervals on the left and right, there are four second side support frames, the four second side support frames are divided into two groups, front and rear, one ends of the two second side support frames in the front group slide and abut against each other, the other ends of the two second side support frames in the front group are arranged in front of the corresponding first side support frame, one ends of the two second side support frames in the rear group slide and abut against each other, and the other ends of the two second side support frames in the rear group are arranged in the rear of the corresponding first side support frame.

5. A central slotted mixing machine according to claim 4, characterized in that: A driving cab is arranged on the first side support frame on the left side.

6. A central slotted mixing machine according to claim 2, characterized in that: A hydraulic rod is arranged between the lower part of the hydraulic telescopic gantry column and the upper beam frame, and the axis of the hydraulic rod is vertical.

7. The central slotted mixing machine according to claim 3, characterized in that: The box-type track chain tool assembly includes a power cutter head part, a cutter tail part, a track block part and a cutter chain part. The power cutter head part is connected to the bottom of the intermediate gear through a connecting piece, the track block part is arranged at the bottom of the power cutter head part, the cutter tail part is connected to the bottom of the track block part, and the cutter chain part is transmission-connected to the outside of the power cutter head part, the track block part and the cutter tail part.

8. A central slotted mixing machine according to claim 7, characterized in that: The track block part includes an upper track block part, a lower track block part and multiple intermediate track block parts. A card block is arranged at the lower end of the upper track block part, a card slot is arranged at the upper end of the lower track block part, a card slot is arranged at the upper end of the intermediate track block part, and a card block is arranged at the lower end of the intermediate track block part. The card block and the card slot can be connected with each other.

9. The central slotted mixing machine according to claim 7, characterized in that: The platform bracket is provided with a power control system module, which is electrically connected to the power cutter head part, the crawler chassis assembly and the gantry column assembly.

10. The central slotted mixing machine according to claim 1, characterized in that: The crawler chassis assembly includes two crawler modules and two power sources. The two crawler modules are arranged at intervals on the left and right. The two power sources are respectively arranged in the two crawler modules. The crawler modules are independently driven by the power sources inside them.

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