A soil shoulder slipform paving apparatus

Abstract

The present application relates to the technical field of shoulder soil material paving, and particularly relates to a soil shoulder slipform paving equipment, which comprises a mechanical arm, a load plate is fixedly installed at the bottom of the mechanical arm, a distributor is arranged at one end of the load plate, the distributor comprises a hopper which is rotationally connected with the load plate, a discharging cylinder is fixedly communicated at the bottom of the hopper, a forming template is arranged at the bottom of the discharging cylinder, the forming template comprises a material frame, a cutting plate is slidingly inserted at the two sides of the material frame, a tamping device is arranged between the load plate and the material frame, the tamping device comprises oil cylinders one and two which are fixedly connected with the load plate. In the present application, the two cutting plates are moved close to cut and intercept the excess soil material in the material frame to the upper side of the cutting plate, then after the material frame is moved to the next soil material paving station, the intercepted soil material is continuously paved to the remaining shoulder position, so that the soil material paving at different positions has the same height while saving the soil material.

Description

Technical Field

[0001] This invention relates to the field of road shoulder paving technology, specifically a slipform paving device for road shoulders. Background Technology

[0002] Slipform paving equipment for road shoulders is a type of equipment used for paving road shoulders in highway construction. It achieves continuous paving, shaping, and compaction of road shoulder soil through slipform technology. Commonly used paving equipment mainly consists of modules such as a forming template, a spiral distributor, and a compaction device. During paving, the auger on the spiral distributor transports the soil into the road shoulder material frame enclosed by the forming template. Then, the vibrator on the compaction device, along with the pressure plate, compacts the soil in the road shoulder material frame. Finally, an external tracked or tire-mounted engineering vehicle moves the paving equipment along the road shoulder to change positions and pave the road shoulder soil.

[0003] To ensure the compaction of the road shoulder soil, a large amount of soil is usually placed into the shoulder material frame enclosed by the shaped template for compaction. However, traditional paving equipment is not convenient to recycle the excess soil from the shoulder material frame to other road shoulder locations for continued paving. This can easily lead to height differences in the soil paved at different locations on the road shoulder. Furthermore, when a local bulge occurs on the road shoulder, the relatively fixed template on traditional paving equipment cannot easily pass through the bulge. Summary of the Invention

[0004] The purpose of this invention is to provide a slipform paving device for earth shoulders to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A slipform paving device for earth shoulders, comprising:

[0007] The robotic arm is used for installation with external construction vehicles.

[0008] The carrier plate is installed at the bottom of the robotic arm.

[0009] A material feeder is arranged at one end of a carrier plate. The material feeder includes a hopper that is rotatably connected to the carrier plate. A feeding cylinder is fixedly connected to the bottom of the hopper.

[0010] A forming template is used to process soil into blocks. The forming template includes a material frame, and cutting plates are slidably inserted into both sides of the material frame.

[0011] The compaction device can compact the soil inside the material frame and move the material frame to a different position. The compaction device includes a hydraulic cylinder 1 and a hydraulic cylinder 2, both of which are fixedly connected to the carrier plate. The output end of the hydraulic cylinder 1 is rotatably engaged with a pressure plate, and the output end of the hydraulic cylinder 2 is drivenly connected to the pressure plate.

[0012] Two double-headed cylinders are fixedly connected to the material frame. The double-headed cylinders can both drive the cutting plate to cut off excess soil and fix the pressure plate and the material frame together.

[0013] Furthermore, the bottom surface of the material frame is fixed with an insertion part, and a rectangular hole is opened at one end of the material frame.

[0014] Furthermore, the output end of the first hydraulic cylinder is fixed with a connecting column, and the top surface of the pressure plate is embedded with two limiting rings that rotate with the connecting column and are slidably engaged.

[0015] Furthermore, the output end of the second hydraulic cylinder is fixed with a connecting block, and the bottom surface of the connecting block is slidably engaged with a rotating seat that is rotatably connected to the pressure plate.

[0016] Furthermore, the bottom of the hopper is connected to a feed pipe that is rotatably connected to the carrier plate, and the feed pipe is connected to and fixed to the feed cylinder.

[0017] Furthermore, the fabric feeder also includes a geared motor fixed to the carrier plate, which can drive the feed tube to rotate.

[0018] Furthermore, the feed cylinder is rotatably connected to an auger, and a motor capable of driving the auger to rotate is fixed at one end of the feed cylinder.

[0019] Furthermore, one end of the cutting plate is fixed with a connecting seat that is slidably connected to the material frame, and one end of the connecting seat is fixed with a pin.

[0020] Furthermore, both ends of the pressure plate are provided with round holes, and the pin is movably inserted into the corresponding round holes.

[0021] Furthermore, both output ends of the double-headed cylinder are fixed with L-shaped rods, the L-shaped rods are fixed to the cutting plate, and the top of the L-shaped rods is fixed with a positioning shaft that is movably inserted into the round hole.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The soil is transported into the material frame by the material distributor. The output end of the hydraulic cylinder (including hydraulic cylinder one and hydraulic cylinder two) extends to move the pressure plate down into the material frame, thereby compacting the soil. The output end of the hydraulic cylinder retracts to move the pressure plate up to the opening of the material frame. The two output ends of the double-headed cylinder simultaneously move the two cutting plates into the material frame. The two cutting plates can cut off the excess soil inside the material frame to the top of the two cutting plates. After the material frame moves along the shoulder to the next soil paving position, the two output ends of the double-headed cylinder drive the two cutting plates away from the material frame, so that the cut-off excess soil can fall to the bottom of the material frame to continue paving the soil shoulder, which helps to save soil.

[0024] The two cutting plates can cut off the excess soil material at the top of the formed earth shoulder in the material frame, so that the soil material paved at different positions of the shoulder is the same height, and prevent the phenomenon of different soil material heights in different positions of the shoulder.

[0025] 2. The pressure plate is adjusted to the open position of the material frame by the hydraulic cylinder. The two output ends of the double-headed cylinder retract their length, so that the multiple positioning shafts on the multiple L-shaped rods are inserted into the round holes at both ends of the pressure plate, thereby fixing the pressure plate and the material frame together. The output ends of the hydraulic cylinder continue to retract their length, which allows the pressure plate to move the entire material frame away from the road surface. Then, an external engineering vehicle moves the entire paving equipment along the shoulder through the mechanical arm, so that the material frame that has left the road surface can be moved above the next paving position. Then, the output ends of the hydraulic cylinder extend so that the bottom surface of the material frame can contact the road surface for secondary paving of soil. Because the material frame can be moved up and down to the paving position as a whole, compared with the traditional material frame which is limited to moving along the road shoulder, it can effectively prevent the road surface bulges from obstructing the movement of the material frame, and facilitate the forming template to pass through the road surface bulges.

[0026] 3. By rotating the feed pipe on the carrier plate, when the pressure plate of the open material frame rotates and unfolds, the reduction motor drives the feed pipe to rotate, causing the feed cylinder to convey soil into the material frame. When the material frame is filled with an appropriate amount of soil, the reduction motor drives the feed pipe to continue rotating, causing the feed pipe to carry the feed cylinder away from the material frame and rotate towards the next shoulder to be paved. While the compaction device on the paving equipment compacts the soil inside the material frame, the feed cylinder can pre-place an appropriate amount of soil on the ground at the next shoulder to be paved, thereby achieving coordinated compaction and placement of shoulder soil, which helps to improve the overall efficiency of the paving equipment in paving earth shoulders.

[0027] 4. When the road shoulder is a flat surface, an external engineering vehicle can directly use a robotic arm to carry the paving equipment of this application to continue moving horizontally along the road to the next paving position without adjusting the height away from the ground. At this time, the paving equipment of this application can realize the function of traditional paving equipment to move and spread soil along the road. Combined with this application, it can also easily pass through the raised parts of the road, which is conducive to improving the wide range of applications of this application. In addition, the end of the material frame near the paving direction is set as a closed structure. When the soil is compacted by pressing down the pressure plate, it can effectively prevent the soil from overflowing from the end of the material frame in the paving direction, which is conducive to improving the compaction density of the soil inside the material frame. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the invention. Figure 1 ;

[0029] Figure 2 This is a schematic diagram of the overall structure of the invention. Figure 2;

[0030] Figure 3 This is a schematic diagram of the pressure plate in its flat position in this invention;

[0031] Figure 4 This is a schematic diagram of the fabric feeder structure in this invention;

[0032] Figure 5 This is a schematic diagram of the molding template and double-headed cylinder structure in this invention;

[0033] Figure 6 This is a schematic diagram of the material receiving plate in the material cutting state structure of the present invention;

[0034] Figure 7 This is a schematic diagram of the compaction device structure in this invention;

[0035] Figure 8 This is a schematic diagram of the connecting column, movable shaft, and limiting ring structure in this invention;

[0036] Figure 9 This is a schematic diagram of the structure of the hydraulic cylinder 2, connecting block, rotating seat, and support seat in this invention.

[0037] In the diagram: 100, robotic arm; 200, carrier plate; 300, material feeder; 310, hopper; 311, feeding pipe; 320, feeding cylinder; 321, motor one; 330, auger; 340, geared motor; 400, forming template; 410, material frame; 411, insertion part; 412, rectangular hole; 420, cutting plate; 430, connecting seat; 431, pin; 500, compaction device; 510, hydraulic cylinder one; 520, hydraulic cylinder two; 530, pressure plate; 531, limit ring; 532, support seat; 533, vibrating motor; 540, connecting block; 550, rotating seat; 560, connecting column; 561, movable shaft; 600, double-headed cylinder; 610, L-shaped rod; 611, positioning shaft. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1, please refer to Figure 1 - Figure 9In this embodiment of the invention, a slipform paving device for road shoulders includes a robotic arm 100 fixed to an external engineering vehicle. A carrier plate 200 is fixed to the bottom of the robotic arm 100. A material distributor 300 is provided at one end of the carrier plate 200, which can distribute soil material to the road shoulder. The material distributor 300 includes a hopper 310 rotatably connected to the carrier plate 200. A discharge cylinder 320 is fixedly connected to the bottom of the hopper 310. A forming template 400 is arranged at the bottom of the discharge cylinder 320. The forming template 400 includes a material frame 410. Cutting plates 420 are slidably inserted into both sides of the material frame 410, and the cutting plates 420 can recover excess soil material inside the material frame 410. A compaction device 500 is provided between the carrier plate 200 and the material frame 410. The compaction device 500 includes a first cylinder 510 and a second cylinder 520, both of which are fixedly connected to the carrier plate 200. The output end of the first cylinder 510 is rotatably engaged with a pressure plate 530. The pressure plate 530 can compact the soil inside the material frame 410 and move the material frame 410. The output end of the second cylinder 520 is connected to the pressure plate 530. The second cylinder 520 and the first cylinder 510 work together to level the pressure plate 530. Both ends of the material frame 410 are fixed with a double-headed cylinder 600. The output end of the double-headed cylinder 600 can move the cutting plate 420 to cut off the excess soil inside the material frame 410.

[0040] Specifically, by sliding two cutting plates 420 on the material frame 410 of the conventional forming template 400, after the soil inside the material frame 410 is compacted, the two cutting plates 420 can move close together to cut off the excess soil inside the material frame 410 and cut it off above the cutting plate 420. Then, after the material frame 410 moves to the next soil paving position, the cut soil is continued to be paved to the remaining road shoulder positions, which saves paint and makes the soil shoulder paved in different positions the same height.

[0041] The hydraulic cylinders 510 and 520 not only drive the pressure plate 530 to compact the soil in the material frame 410, but also drive the pressure plate 530 to move the material frame 410 upwards to above the road surface ridge, facilitating the passage of the forming template 400 through the road surface ridge. By sealing one end of the material frame 410 in the forward direction, soil overflows from one end of the material frame 410 when the pressure plate 530 compacts the soil inside, which helps to improve the compactness of the soil. Since the material frame 410 of this application is equipped with a cutting plate 420 that can cut off excess soil, an excessive amount of soil can be added when adding soil into the material frame 410. If enough soil is added at once, it can avoid frequent secondary addition of soil during the paving process, reduce construction interruptions, and improve continuity. In addition, in some emergency projects or when time is tight, adding an excessive amount of soil can quickly fill the shoulder soil frame 410, reduce construction time, and improve construction efficiency.

[0042] like Figure 2 and Figure 5 As shown, in this embodiment, the bottom surface of the material frame 410 is fixed with an insertion part 411. The insertion part 411 allows the bottom of the material frame 410 to be inserted into the road shoulder soil, improving the stability of the soil paving. One end of the material frame 410 is provided with a rectangular hole 412. The position of the rectangular hole 412 of the material frame 410 allows the material frame 410 to easily overlap with the end of the road shoulder soil that has been paved, so that the material frame 410 can advance along the paved road shoulder soil to pave the remaining road shoulder positions.

[0043] like Figure 7 As shown in Figure 9, in this embodiment, the output end of cylinder 1 510 is fixed with a connecting column 560, the bottom of the connecting column 560 is fixed with a movable shaft 561, the top surface of the pressure plate 530 is embedded with two limiting rings 531, and the two ends of the movable shaft 561 are respectively movably engaged with the corresponding limiting rings 531. The output end of cylinder 2 520 is fixed with a connecting block 540, the bottom surface of the connecting block 540 is slidably engaged with a rotating seat 550, and the top surface of the pressure plate 530 is fixed with a support seat 532 that is rotatably connected to the rotating seat 550, so that the output ends of cylinder 1 510 and cylinder 2 520 are both movably connected to the pressure plate 530.

[0044] In this embodiment, in the initial state, referencing Figure 3 At this time, the pressure plate 530 is placed flat at the opening of the material frame 410. If soil needs to be added to the material frame 410, the output ends of the two hydraulic cylinders extend simultaneously, causing the round hole at one end of the pressure plate 530 to move down to the position aligned with the pin 431. Then, refer to... Figure 1 and Figure 2 The output end of the double-headed cylinder 600 moves the L-shaped rod 610 towards the material frame 410, causing the pin 431 to insert into the round hole. The output end of the first cylinder 510 retracts, causing the pressure plate 530 to rotate around the pin 431, thus opening one end of the pressure plate 530 to facilitate the feeding of soil into the material frame 410. During the rotation of the pressure plate 530, the movable shaft 561 slides inside the limiting ring 531, and the rotating seat 550 slides on the connecting block 540. At the same time, the output end of the second cylinder 520 extends slightly to accommodate the rotation of the pressure plate 530, allowing the pressure plate 530 to unfold from one end. This enables the pressure plate 530 to rotate and feed soil within a small working space. Of course, in Figure 3 In this state, both cylinders can be retracted simultaneously, causing the pressure plate 530 to move upward as a whole. This makes it easier to feed more soil into the material frame 410, which is suitable for scenarios where the soil paving height of the road shoulder is relatively high.

[0045] In this embodiment, the two hydraulic cylinders working together to move the pressure plate 530 can also compact the soil. When soil is placed inside the material frame 410, the output ends of the two hydraulic cylinders can extend simultaneously, allowing the pressure plate 530 to press the soil inside the material frame 410 flat, facilitating the compaction of the coating. Before compacting the soil, the pressure plate 530 can also be adjusted to an inclined state and pressed down by extending or shortening the output ends of the two hydraulic cylinders. This helps to push the soil that is in excess in some areas inside the material frame 410 towards the underside of the tilted end of the pressure plate 530, because... The space below the raised end of the pressure plate 530 is larger than that below the other end. When pressing down on the soil, the soil can move downwards first from the raised end of the pressure plate 530. By adjusting the tilt of the pressure plate 530, the two ends of the material frame 410 can be evenly filled with soil before the pressure plate 530 is pressed flat. After the soil inside the material frame 410 has been initially squeezed and dispersed, the pressure plate 530 is adjusted to a flat position. Then, the output ends of the two hydraulic cylinders are extended at the same time, so that the pressure plate 530 can press down on the soil flatly, thereby further compacting the coating.

[0046] like Figure 4 As shown, in this embodiment, the bottom of the hopper 310 is connected and fixedly connected to a discharge pipe 311 that is rotatably connected to the carrier plate 200. The discharge pipe 311 is connected and fixedly connected to the discharge cylinder 320. The material distributor 300 also includes a reduction motor 340 fixed to the carrier plate 200, which can drive the discharge pipe 311 to rotate. An auger 330 is rotatably connected inside the discharge cylinder 320, and a motor 321 that can drive the auger 330 to rotate is fixed to one end of the discharge cylinder 320.

[0047] In this embodiment, an external loading and unloading vehicle dumps soil into the hopper 310. The soil falls through the discharge pipe 311 to one end of the auger 330 of the discharge cylinder 320. When soil needs to be added to the material frame 410, the reduction motor 340 drives the discharge pipe 311 to rotate, causing the discharge port of the discharge cylinder 320 to rotate to face the material frame 410. Then, the motor 321 drives the auger 330 to rotate, causing the auger 330 to transport the soil into the material frame 410. When the discharge cylinder 320 needs to transport the soil to other shoulder positions in the paving direction, the reduction motor 340 drives the discharge pipe 311 to rotate, causing the discharge cylinder 320 to rotate away from the position above the material frame 410 and point to the next paving position. At this time, the auger 330 can pre-discharge an appropriate amount of soil to the next paving position.

[0048] In this embodiment, gears are fixed on the outer side of the feed tube 311 and the output end of the reduction motor 340. The two gears mesh with each other to drive the feed tube 311 to rotate.

[0049] like Figure 5 and Figure 6As shown, in this embodiment, one end of the cutting plate 420 is fixed with a connecting seat 430 that is slidably connected to the material frame 410. One end of the connecting seat 430 is fixed with a pin 431. Both ends of the pressure plate 530 are provided with round holes. The pin 431 is movably inserted into the round hole at the corresponding position. Both output ends of the double-headed cylinder 600 are fixed with L-shaped rods 610. The bottoms of the two L-shaped rods 610 are directly fixed to the cutting plate 420. The other two L-shaped rods 610 are indirectly fixed to the cutting plate 420 by fixing them to the connecting seat 430 at the corresponding position. The top of the L-shaped rods 610 is also fixed with a positioning shaft 611 that is movably inserted into the round hole.

[0050] In this embodiment, when it is necessary to use two cutting plates 420 to cut off excess soil inside the material frame 410, refer to Figure 6 The output end of the double-headed cylinder 600 retracts, causing the L-shaped rod 610 to move closer to the two cutting plates 420. The cutting plates 420 cut the excess soil to their top, completing the removal of excess soil. At the same time, the positioning shaft 611 at the top of the L-shaped rod 610 is inserted into the corresponding round holes at both ends of the pressure plate 530, so that the excess soil inside the material frame 410 is removed while the pressure plate 530 and the material frame 410 are connected by the L-shaped rod 610 and the positioning shaft 611. Once fixed together, the hydraulic cylinder can drive the pressure plate 530 upward to move the entire material frame 410, carrying the cut soil material, upward away from the completed paved shoulder soil material. An external engineering vehicle uses the mechanical arm 100 to move the material frame 410 horizontally along the shoulder direction, so that the material frame 410 moves to the next paved soil material position. After that, the material frame 410 moves downward to contact the road surface, and the two cutting plates 420 move away from the material frame 410, so that the previously cut excess soil material can be used for paving another shoulder soil material.

[0051] In this embodiment, the external engineering vehicle moves the paving equipment with the robotic arm 100, which is existing technology. The specific working principle will not be described in detail. If it is necessary to adjust the height of the material frame 410 over a large distance on the road surface, the robotic arm 100 can also be used to assist in adjusting the position and height of the material frame 410.

[0052] like Figure 6 As shown, in this embodiment, one side of the cutting plate 420 is inclined, which facilitates the smooth insertion of the cutting plate 420 into the soil. Both sides of the material frame 410 are provided with rectangular through holes, which facilitate the sliding of the cutting plate 420 on the material frame 410. Two C-shaped plates are fixed at both ends of the material frame 410, which can install and fix the double-headed cylinder 600 on the material frame 410.

[0053] like Figure 5 and Figure 6As shown, in this embodiment, the pin 431 is semi-cylindrical in shape. When the two cutting plates 420 are close to each other, the two connecting seats 430 will also be close to each other. At this time, the two semi-cylindrical pins 431 can be spliced ​​into a complete cylinder, so that the two pins 431 do not interfere with each other when they are close to each other.

[0054] like Figure 3 As shown, in this embodiment, two vibration motors 533 are fixed on the top surface of the pressure plate 530. During the process of using the pressure plate 530 to compact the soil, the vibration motors 533 can be turned on to vibrate the pressure plate 530, which helps to further compact the soil in the material frame 410.

[0055] In this invention, when the material frame 410 is repositioned to lay the shoulder soil for the second time, the end face of the previously laid shoulder soil needs to be fitted inside the end of the material frame 410 near the rectangular hole 412. In this way, the soil near the end face of the already laid shoulder soil can be compacted again during the second laying process, and the shoulder soil laid in the two times can be tightly connected.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A slipform paving device for earth shoulders, characterized in that, include: A robotic arm (100) is installed with an external engineering vehicle; The carrier plate (200) is mounted to the bottom end of the robotic arm (100); A feeder (300) is arranged at one end of a carrier plate (200). The feeder (300) includes a hopper (310) rotatably connected to the carrier plate (200). A feed cylinder (320) is fixedly connected to the bottom of the hopper (310). The forming template (400) is capable of processing soil into blocks. The forming template (400) includes a material frame (410), and cutting plates (420) are slidably inserted on both sides of the material frame (410). The compaction device (500) can compact the soil inside the material frame (410) and move the material frame to a different position. The compaction device (500) includes a first cylinder (510) and a second cylinder (520) that are fixedly connected to the carrier plate (200). The output end of the first cylinder (510) is rotatably clamped to the pressure plate (530), and the output end of the second cylinder (520) is connected to the pressure plate (530) in a transmission connection. Two double-headed cylinders (600) are fixedly connected to the material frame (410). The double-headed cylinders (600) can drive the cutting plate (420) to cut off excess soil and can also fix the pressure plate (530) to the material frame (410). One end of the cutting plate (420) is fixed with a connecting seat (430) that is slidably connected to the material frame (410), and one end of the connecting seat (430) is fixed with a pin (431). When soil needs to be added to the material frame (410), the pin (431) is inserted into the round hole, and the output end of the hydraulic cylinder (510) retracts its length to make the pressure plate (530) rotate around the pin (431) as the axis; Both ends of the pressure plate (530) are provided with round holes, and the pin (431) is movably inserted into the corresponding round hole; Both output ends of the double-headed cylinder (600) are fixed with L-shaped rods (610), the L-shaped rods (610) are fixed with the cutting plate (420), and the top of the L-shaped rods (610) is fixed with a positioning shaft (611) that is movably inserted into the round hole. When it is necessary to use two cutting plates (420) to cut off excess soil inside the material frame (410), the positioning shaft (611) at the top of the L-shaped rod (610) is simultaneously inserted into the round holes at the corresponding positions at both ends of the pressure plate (530), so that while the excess soil inside the material frame (410) is cut off, the pressure plate (530) and the material frame (410) are connected and fixed together by means of the L-shaped rod (610) and the positioning shaft (611).

2. The slipform paving equipment for earth shoulders according to claim 1, characterized in that, The bottom surface of the material frame (410) is fixed with a plug-in part (411), and a rectangular hole (412) is opened at one end of the material frame (410).

3. The slipform paving equipment for earth shoulders according to claim 1, characterized in that, The output end of the hydraulic cylinder (510) is fixed with a connecting column (560), and the top surface of the pressure plate (530) is embedded with two limiting rings (531) that rotate with the connecting column (560) and slide in contact with it.

4. The slipform paving equipment for earth shoulders according to claim 1, characterized in that, The output end of the second cylinder (520) is fixed with a connecting block (540), and the bottom surface of the connecting block (540) is slidably engaged with a rotating seat (550) that is rotatably connected to the pressure plate (530).

5. The slipform paving equipment for earth shoulders according to claim 1, characterized in that, The bottom of the hopper (310) is connected to a feed pipe (311) that is rotatably connected to the carrier plate (200), and the feed pipe (311) is connected to the feed cylinder (320).

6. The slipform paving equipment for earth shoulders according to claim 5, characterized in that, The feeder (300) also includes a geared motor (340) fixed to the carrier plate (200), which can drive the feed tube (311) to rotate.

7. The slipform paving equipment for earth shoulders according to claim 5, characterized in that, The feed cylinder (320) is rotatably connected to an auger (330), and a motor (321) that can drive the auger (330) to rotate is fixed at one end of the feed cylinder (320).

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