Laying layer eradication apparatus

Abstract

The application provides a paving layer removing device for removing the paving layer on the base surface, which comprises a machine body, a driving unit arranged on the machine body, and a plurality of shovels driven by the driving unit. The driving unit has a driving shaft arranged vertically to the paving layer, and a cutter holder mechanism is arranged on the driving shaft. Each shovel is arranged on the bottom of the cutter holder mechanism. The cutter holder mechanism is driven by the driving shaft to rotate and drive each shovel to rotate around the driving shaft to form the cutting of the paving layer. The paving layer removing device has the effect of easily removing the paving layer completely. Moreover, the paving layer can provide the reaction force to the shovel to form the power for the auxiliary equipment to move, so that the equipment is easy to operate and suitable for the removing operation of the paving layer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction equipment, in particular to a laying layer removing device. BACKGROUND

[0002] In the field of building construction, such as the waterproof layer of the roof, the clean area or the floor of the sports ground, these laying layers will be damaged after a long time of use, resulting in the loss of their waterproof, flat and other characteristics, and thus need to be removed and then re-laid.

[0003] The traditional method of removing the laying layer is to manually hold a shovel to clean it, which is low in efficiency and labor-intensive. Especially for the roof waterproof layer of a building, the removal of the old waterproof layer and the relaying of the new waterproof layer need to be completed in time according to the weather, and the construction period is very tight. Therefore, it is necessary to improve the way of removing the layer to improve the efficiency.

[0004] Some existing removing devices are generally used for breaking the hardened pavement, and use high-power breaking drills to break the hardened pavement, which is not suitable for removing the laying layer such as waterproof layer and floor. Some removing devices use horizontally arranged shovels to remove the laying layer by translation, which is poor in effect and laborious to operate. Some devices use a cylindrical cutter holder, and multiple cutters are arranged on the cutter holder. The cylindrical cutter holder rolls forward, and each cutter removes the laying layer by throwing and cutting. This way of removing is not thorough and a large amount of laying layer remains. SUMMARY

[0005] Therefore, the present application aims to provide a laying layer removing device suitable for removing the laying layer.

[0006] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0007] A laying layer removing device for removing the laying layer laid on the base surface, comprising a machine body, a driving unit arranged on the machine body, and a plurality of shovels driven by the driving unit; the driving unit has a driving shaft arranged vertically to the laying layer, and a cutter holder mechanism is installed on the driving shaft; each of the shovels is installed on the bottom of the cutter holder mechanism in a spaced manner around the driving shaft; the cutter holder mechanism is driven to rotate by the driving shaft, and each of the shovels is driven to rotate around the driving shaft to form a cutting of the laying layer.

[0008] Further, the driving shafts are arranged in a spaced manner, and each of the driving shafts is provided with the cutter holder mechanism, and each of the cutter holder mechanisms is provided with the same number of shovels.

[0009] Further, the rotation directions of the two driving shafts are opposite, and the rotation speeds are the same.

[0010] Further, the three shovels are mounted on the cutter holder mechanism and are evenly distributed around the driving shaft.

[0011] Further, the cutter holder mechanism comprises a shovel support for mounting each of the shovels, and a floating connection part connected between the driving shaft and the shovel support; the floating connection part has a floating amount that can swing relative to the driving shaft, so that each of the shovels can adhere to the paving layer to form a cutting of the paving layer when the paving layer has a slope change.

[0012] Further, the floating connection part uses a rubber pad, which is fixed to the driving shaft through a mounting seat; a plurality of first through holes and second through holes are formed in the rubber pad, the first through holes are used for mounting the rubber pad on the mounting seat, and the second through holes are used for fixedly connecting the shovel support and the rubber pad.

[0013] Further, corresponding to each of the first through holes, a plurality of protruding mounting tables are arranged at the bottom of the mounting seat, and the rubber pad is screwed to the mounting tables through fasteners arranged in the first through holes, so that a space is kept between the rubber pad and the mounting seat.

[0014] Further, a through hole is formed in the middle of the rubber pad, and an elastic member is arranged in the through hole and abuts against the mounting seat and the shovel support.

[0015] Further, the shovel has a cutting surface arranged in a tangential direction of rotation of the shovel, the cutting surface is arranged backwardly and is formed with a first cutting surface and a second cutting surface arranged at the bottom in a spaced manner, and a gap is formed between the first cutting surface and the second cutting surface.

[0016] Further, an upper cutting surface of the cutting surface is arranged to be sunken relative to the first cutting surface and the second cutting surface, and the gap extends upwardly to the upper cutting surface.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] The paving layer removing device disclosed by the present application uses a rotating cutter holder mechanism, a plurality of shovels are arranged at the periphery of the bottom of the cutter holder mechanism, so that the cutter holder mechanism drives each of the shovels to perform a rotating tangential motion to form a cutting of the paving layer, which has the effect of easily removing the paving layer completely; and in the process of cutting the paving layer, the paving layer can give a reaction force to the shovels, thereby forming a power to assist the movement of the device, so that the device is easy to operate and is suitable for the cleaning work of the paving layer.

[0019] Meanwhile, two groups of driving shafts and tool holder mechanisms are symmetrically arranged, and the same number of shovels are arranged on each tool holder mechanism, so that the shoveling efficiency of the device is increased, and the force balance of the device is improved. The two driving shafts rotate in opposite directions, and the reaction force of the laying layer on the two groups of tool holder mechanisms is more balanced, which is beneficial to the straight forward movement of the device and the operation control of the device.

[0020] In addition, the shovels and the floating connection part are arranged in the tool holder mechanism, so that the rotation and cutting of each shovel are realized, and the cutting planes formed by the shovels on the same tool holder mechanism can be changed within a certain range, so as to adapt to the uneven laying layer, and the problem that the uneven area caused by the slight change of the slope in the laying layer is difficult to clean is solved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and the illustrative embodiments of the present application and their descriptions are used to explain the present application. The front, back, up, down and other orientation words involved in the present application only represent relative positional relationships, and do not constitute improper limitations on the present application. In the drawings:

[0022] Figure 1 The overall structure schematic diagram of the laying layer shoveling device described in the embodiment of the present application is shown in the figure;

[0023] Figure 2 The bottom structure schematic diagram of the laying layer shoveling device described in the embodiment of the present application is shown in the figure;

[0024] Figure 3 The exploded view of the tool holder mechanism, the driving shaft and the shovel described in the embodiment of the present application is shown in the figure; Figure 2 The exploded view of the tool holder mechanism, the driving shaft and the shovel described in the embodiment of the present application is shown in the figure;

[0025] Figure 4 The exploded view of the tool holder mechanism, the driving shaft and the shovel described in the embodiment of the present application is shown in the figure;

[0026] Figure 5 The structure schematic diagram of the shovel support described in the embodiment of the present application is shown in the figure;

[0027] Figure 6 The schematic diagram of the speed reduction transmission mechanism in the driving unit described in the embodiment of the present application is shown in the figure;

[0028] Figure 7 The three-dimensional structure schematic diagram of the shovel described in the embodiment of the present application is shown in the figure;

[0029] Figure 8 The cross-sectional structure schematic diagram of the part shown in B-B in the figure; Figure 7 The cross-sectional structure schematic diagram of the part shown in B-B in the figure;

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031] 1, body; 10, lower shell; 11, upper shell; 100, speed reduction chamber; 101, buckling flange; 102, assembly hole; 110, cover cavity; 111, side wall;

[0032] 2, handrail frame; 21, roller; 200, handle; 201, frame body; 202, base; 203, adjusting frame; 204, rotating pin; 205, locking piece; 206, adjusting slide;

[0033] 3, drive motor; 30, first gear; 31, bearing seat; 32, second gear; 300, motor shaft;

[0034] 4, drive shaft; 40, shaft key; 400, stud; 401, lock nut;

[0035] 5, tool holder mechanism; 50, mounting seat; 51, floating connection part; 52, elastic piece; 53, spade holder; 500, mounting table; 501, threaded hole; 502, shaft hole; 503, key groove; 510, via hole; 511, first through hole; 512, second through hole; 530, tool holder arm; 531, first fastening hole; 532, second fastening hole; 533, abutting groove;

[0036] 6, spade; 60, blade; 600, mounting hole; 601, first blade surface; 602, second blade surface; 603, notch; 604, upper blade surface; 605, blade back;

[0037] 7, fastener. DETAILED DESCRIPTION

[0038] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0039] In the description of the present application, it should be noted that if the terms indicating the orientation or position relationship such as "upper", "lower", "inner", "back" appear, they are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; if the terms "first", "second" appear, they are also only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0040] Furthermore, in the description of the present application, unless otherwise specifically defined, the terms "mounting", "connection", "connecting", "connected", and "connection piece" should be interpreted broadly. For example, the connection can be a fixed connection, or a detachable connection, or an integral connection; can be a mechanical connection, or an electrical connection; can be a direct connection, or an indirect connection through an intermediate medium, or an internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood in combination with the specific circumstances.

[0041] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0042] The present embodiment relates to a paving layer removing device for removing paving layers such as roof waterproof layers and plastic floor pavements laid on a base surface; the paving layer removing device can easily remove the paving layers completely and is suitable for the removal of paving layers.

[0043] The paving layer removing device comprises a machine body, a driving unit arranged on the machine body, and a plurality of shovels driven by the driving unit. The driving unit has a driving shaft arranged vertically to the paving layer, and a knife holder mechanism is mounted on the driving shaft. Each shovel is arranged at intervals around the driving shaft and is mounted on the bottom of the knife holder mechanism. The knife holder mechanism is driven to rotate by the driving shaft, and each shovel is driven to rotate around the driving shaft to form a cutting of the paving layer.

[0044] Based on the above design idea, an exemplary structure of the paving layer removing device of the present embodiment is shown in Figure 1 and Figure 2 which mainly comprises a machine body 1, a handrail 2, a driving unit, a knife holder mechanism 5, and shovels 6.

[0045] The machine body 1 comprises a lower shell 10 and an upper shell 11. A driving motor 3 can be mounted on the upper shell 11 as a power source of the driving unit. The lower shell 10 and the upper shell 11 can be fastened together by a buckle 101 on their edges and fastened by fasteners 7 such as bolts, and the transmission mechanism of the driving unit can be installed inside the machine body 1. At the same time, the driving shaft 4 of the driving unit is arranged to pass through the bottom of the lower shell 10 for mounting the knife holder mechanism 5 and the shovels 6.

[0046] As shown in Figure 1As shown, the handrail 2 is mainly used by operators to hold onto and control the movement of the equipment. In this embodiment, the handrail 2 is fixed to the side of the lower housing 10 and includes a base 202, an adjustment frame 203, a frame body 201, and a handle 200. To facilitate adjustment of the height of the handle 200 to accommodate operators of different heights, the frame body 201 is hinged to the adjustment frame 203 via a rotating pin 204, allowing it to swing up and down to adjust the angle. The adjustment frame 203 is fastened to the base 202 by fasteners 7, and the base 202 can be welded to the side of the lower housing 10. The adjustment frame 203 has an arc-shaped adjustment slide 206 centered on the rotating pin 204, and a locking member 205 slidably passes through the frame body 201 within the adjustment slide 206. Once the frame 201 moves the handle 200 to the required height, tighten the locking piece 205. The frame 201 will then be fixed at the predetermined angle, and the handle 200 will also be fixed at the adjusted height, making it convenient for the operator to hold.

[0047] Control components such as switches used to control the start and stop of drive motor 3 can be installed on the frame 201 near the handle 200.

[0048] Meanwhile, a set of rollers 21 can be added to the bottom of the base 202 to assist the equipment in moving. When the equipment moves in a non-working state, the handrail 2 can be pressed down to make the blade 6 leave the ground, and the rollers 21 will carry the entire equipment forward, thereby increasing the mobility of the equipment.

[0049] like Figure 2 As shown, multiple scrapers 6 can be installed on each cutter holder mechanism 5. Each scraper 6 is preferably installed on the outer periphery of the bottom of the cutter holder mechanism 5, so that it can rotate tangentially with the rotation of the cutter holder mechanism 5, forming a scraping motion on the laying layer. Preferably, in this embodiment, three scrapers 6 are installed on one cutter holder mechanism 5, and these three scrapers 6 are evenly distributed around the axis of the drive shaft 4. The evenly distributed three scrapers 6 on each cutter holder mechanism 5 facilitates balanced force distribution, thereby improving the service life of the cutter holder mechanism 5; moreover, the arrangement of the scrapers 6 is reasonable and effective, facilitating the construction and assembly of the equipment.

[0050] Of course, the layer removal device in this embodiment could be equipped with only one drive shaft 4 and a blade holder mechanism 5, driving three blades 6 for cutting operations. However, to facilitate balanced force distribution on the device, two drive shafts 4 are spaced apart, each equipped with a blade holder mechanism 5, and each blade holder mechanism 5 is equipped with the same number of blades 6. Using two sets of symmetrically arranged drive shafts 4 and blade holder mechanisms 5, with each blade holder mechanism 5 equipped with the same number of blades 6, can increase the removal efficiency of the device.

[0051] Meanwhile, the rotation of the two driving shafts 4 is preferably set in opposite directions, and the rotation speed of the two driving shafts 4 is set to be the same. In this way, the reaction force of the paving layer on the two groups of cutter holder mechanisms 5 is more balanced, which is beneficial to the straight advancement of the control equipment and helps the operation control of the equipment.

[0052] As shown in Figure 3 , Figure 4 and in combination with Figure 5 , in order to further improve the use performance of the equipment, the cutter holder mechanism 5 of the present application is not of a common cutter holder structure, but has a certain floating effect. Specifically, the cutter holder mechanism 5 of the present embodiment includes a shovel blade support 53 for mounting each shovel blade 6, and a floating connection part 51 connected between the driving shaft 4 and the shovel blade support 53. The floating connection part 51 has a floating amount that can swing relative to the driving shaft 4, and when the paving layer has a slope change, it can ensure that each shovel blade 6 can adhere to the paving layer to form a shovel cutting of the paving layer. By arranging the shovel blade support 53 and the floating connection part 51 in the cutter holder mechanism 5, not only can the rotating cutting action of each shovel blade 6 be realized, but also the cutting plane formed by each shovel blade 6 on the same cutter holder mechanism 5 can float and change within a certain range to adapt to the unevenness of the paving layer, thereby solving the problem that the uneven area caused by slight changes in the slope of the paving layer is difficult to clean completely.

[0053] The floating connection part 51 described above can be in the form of a spring, an elastic skeleton, etc. Preferably, the floating connection part 51 of the present embodiment is made of a rubber pad. The rubber pad can be cut into a round disc shape from a rubber sheet with a thickness of 10-20 mm, and the diameter size is 15 cm. A plurality of first through holes 511 and second through holes 512 are formed on the rubber pad; at the same time, a mounting seat 50 is pre-installed on the driving shaft 4, and the rubber pad is mounted on the mounting seat 50 by means of a fastener 7 threaded through the first through hole 511; the shovel blade support 53 with the shovel blade 6 fixed thereon is then fixed to the rubber pad by means of the fastener 7 and the second through hole 512. The floating connection part 51 is made of a rubber pad, which can well achieve the purpose of small-angle swinging and floating of the shovel blade support 53, and is easy to process and manufacture; by forming through holes on the floating connection part 51, it is convenient to fix the mounting seat 50 and the shovel blade support 53.

[0054] Specifically, the mounting seat 50 described above can be designed in a disc shape. A shaft hole 502 is formed in the middle of the mounting seat 50, and a key groove 503 is formed on the shaft hole 502. The bottom end of the driving shaft 4 is provided with a threaded portion and a boss, and the threaded portion is provided with a key groove 503; a stud 400 is provided at the bottom of the threaded portion. The shaft hole 502 is sleeved on the threaded portion, the key grooves 503 arranged on the driving shaft 4 and the shaft hole 502 are aligned, a shaft key 40 is arranged in the key groove 503, and a lock nut 401 is screwed on the stud 400, so as to fasten the mounting seat 50 on the driving shaft 4.

[0055] In the embodiment, the shovel holder 53 is designed as a "Y" shape, including three divergent holder arms 530, two 521 are opened at the end of the holder arms 530 for installing the shovel 6. The shovel holder 53 can be cut from a circular steel plate, and the overall diameter can be designed as 30 cm. Meanwhile, a second fastening hole 532 is opened in the middle of each holder arm 530, which is preferably designed as a threaded hole, and the fastener 7 passing through the second passing hole 512 and screwed into the second fastening hole 532 can realize the fixed connection between the shovel holder 53 and the rubber pad.

[0056] In addition, corresponding to each first passing hole 511, a plurality of raised mounting tables 500 are provided on the bottom of the mounting seat 50, and a threaded hole 501 is opened on the mounting table 500. The rubber pad is screwed into the threaded hole 501 through the fastener 7 passing through the first passing hole 511, so that the rubber pad and the mounting seat 50 maintain a certain gap. Preferably, the mounting table 500 is spaced apart from the axis of the ring driving shaft 4 by three floating. By providing the mounting table 500 on the mounting seat 50, the rubber pad can be easily installed on the mounting seat 50 by the fastener 7, and a certain gap space can be formed between the bottom surface of the mounting seat 50 and the rubber pad, which is beneficial to the deformation of the floating connection part 51 itself, thereby improving the swing floating performance of the floating connection part 51.

[0057] As shown in Figure 4 and Figure 5 A through hole 510 is also opened in the middle of the rubber pad, and an elastic member 52 is arranged in the through hole 510, which is pressed between the mounting seat 50 and the shovel holder 53. Preferably, the elastic member 52 is a compression spring. For example, a steel spring with a diameter of 4 cm and a natural length of 6 cm is selected; when the compression spring is installed in place and in the pressed state, its length is about 4 cm. Correspondingly, the diameter of the through hole 510 can be designed as 4.5 cm.

[0058] To prevent the compression spring from moving, the upper end of the compression spring is sleeved on the lock nut 401, and a pressing groove 533 is opened in the middle of the shovel holder 53, and the lower end of the compression spring is limited in the pressing groove 533. By arranging the elastic member 52 between the mounting seat 50 and the shovel holder 53, the force support of the shovel holder 53 in the vertical direction can be provided, thereby providing good support force for the cutting of each shovel 6. Due to the elastic characteristics of the elastic member 52, it can not only well cooperate with the floating change of the floating connection part 51, but also respond to the situation of the change of the laying layer slope, so that each shovel 6 can maintain a moderate cutting force on the laying layer.

[0059] As shown in Figure 6The transmission mechanism in the driving unit described above can use the existing reduction gear transmission. The driving motor 3 above the upper housing 11 has its motor shaft 300 inserted into the reduction gear compartment 100 formed by the lower housing 10 and the upper housing 11 through the through hole on the upper housing 11 to drive the first gear 30 to rotate. Two second gears 32 of the same specification are symmetrically arranged in the reduction gear compartment 100 and mesh with each other, and the first gear 30 meshes with one of the two second gears 32. The two second gears 32 drive the two driving shafts 4 to rotate in opposite directions to drive the two sets of tool holder mechanisms 5 to rotate. In order to reduce the rotational resistance of the driving shaft 4, two bearing seats 31 can be provided on the lower housing 10 and the upper housing 11 for mounting the driving shaft 4 and its second gear 32. The lower housing 10 and the upper housing 11 are assembled by means of the fastening members 7 such as bolt pairs through the assembly holes 102 on the folded edges 101 of the lower housing 10 and the upper housing 11.

[0060] In addition, in combination with Figure 3 and Figure 1 As shown in the bottom of the lower housing 10, the side wall 111 of the lower housing 10 extends downward to form a side wall 111, and the two sets of tool holder mechanisms 5 are contained in the cover cavity 110 formed by the side wall 111, so that the exposure of the rotating parts can be reduced to avoid the operator being touched and injured. It should be pointed out that the lower edge of the side wall 111 should have a gap H from the paving layer, i.e. the shovel 6 partially protrudes, so as to prevent the side wall 111 from contacting the paving layer during operation of the equipment; at the same time, the debris of the paving layer removed by the shovel 6 can be discharged from the gap. Preferably, the gap H is 8-12 cm.

[0061] As shown in Figure 7 and Figure 8 The shovel 6 has a blade surface arranged towards the tangent direction of its own rotation, and the blade surface is arranged with a certain angle with the vertical plane, and the angle is preferably 15-40°. At the same time, the back 605 of the shovel 6 should also be arranged as an inclined surface, i.e. with a certain angle with the ground. The junction of the blade surface and the back 605 is the cutting edge 60 of the shovel 6. Preferably, the angle between the back 605 and the blade surface is 25-45°.

[0062] In addition, the above-mentioned blade surface comprises two parts at the upper part and the bottom part, the first blade surface 601 and the second blade surface 602 are arranged at the bottom part, and the gap 603 is arranged between the first blade surface 601 and the second blade surface 602. Meanwhile, the upper part blade surface 604 of the blade surface is arranged to be sunken relative to the first blade surface 601 and the second blade surface 602, and the gap 603 extends upwardly into the upper part blade surface 604. In this way, the first blade surface 601 and the second blade surface 602 are arranged to be higher than the upper part blade surface 604 by a certain height, and the height is preferably arranged to be 5-10 mm. The width of the spade 6 is preferably arranged to be 5 cm, the width of the gap 603 is arranged to be 1 cm, and the depth d of the gap 603 is arranged to be 8-15 mm. The thickness T of the whole spade 6 is preferably arranged to be 3-6 cm, and the length L is preferably arranged to be 8-15 cm.

[0063] Meanwhile, the two mounting holes 600 are arranged on the spade 6, and the two mounting holes 600 correspond to the two first fastening holes 531 on the blade holder arm 530; the fastener 7 arranged in the mounting hole 600 and the first fastening hole 531 can be used to fix the spade 6 on the spade holder 53.

[0064] The blade surface is arranged to be backward inclined, and is arranged to be directed to the moving direction of the spade 6, so that the spade 6 can be used to form the removing operation of the paving layer; the gap 603 arranged between the first blade surface 601 and the second blade surface 602 at the bottom part can be used to reduce the resistance of the spade 6, and facilitate the discharging of the removed paving layer. The upper part blade surface 604 is arranged to be sunken, so that the sunken upper part blade surface 604 can be used to provide a good discharging space for the removed waste; and the gap 603 extends into the upper part blade surface 604, so that the gap 603 can be used to have a good effect on the heat dissipation, stress and discharging of the spade 6.

[0065] The paving layer removing equipment described in the embodiment is arranged to be rotatable, and the plurality of spades 6 are arranged at the periphery of the bottom part of the blade holder mechanism 5, so that the blade holder mechanism 5 drives the plurality of spades 6 to perform the rotational tangent motion, so as to form the removing operation of the paving layer, and the spades 6 can be used to remove the paving layer easily. In addition, the paving layer can be used to give the reaction force to the spade 6 during the removing operation of the paving layer, so that the reaction force can be used to form the power for the auxiliary equipment to move, so that the equipment is convenient to operate, and is suitable for the removing operation of the paving layer.

[0066] The above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A paving layer removing device for removing a paving layer laid on a base surface, comprising a machine body (1), a driving unit arranged on the machine body (1), and a plurality of shovels (6) driven by the driving unit, characterized in that: the driving unit is provided with driving shafts (4) arranged perpendicularly to the paving layer, and each driving shaft (4) is provided with a blade holder mechanism (5); each of the shovels (6) is arranged at intervals around the driving shaft (4) and is arranged on the bottom of the blade holder mechanism (5); the blade holder mechanism (5) is driven to rotate by the driving shaft (4) and drives each of the shovels (6) to rotate around the driving shaft (4) to form a cutting of the paving layer; the driving shaft (4) is provided in two and each is provided with the blade holder mechanism (5), and each of the blade holder mechanisms (5) is provided with the same number of shovels (6); the two driving shafts (4) are arranged in opposite directions and have the same rotating speed; the blade holder mechanism (5) comprises a shovel support (53) for mounting each of the shovels (6), and a floating connection part (51) connected between the driving shaft (4) and the shovel support (53); the floating connection part (51) is provided with a rubber pad and has a floating amount that can swing relative to the driving shaft (4), so that when the paving layer has a slope change, each of the shovels (6) can be attached to the paving layer to form a cutting of the paving layer; the shovel (6) has a blade surface arranged towards a tangent direction of its own rotation, the blade surface is arranged backwardly and is formed with a first blade surface (601) and a second blade surface (602) arranged at intervals at the bottom, and a gap (603) is arranged between the first blade surface (601) and the second blade surface (602); three shovels (6) are arranged on the blade holder mechanism (5) and are arranged at intervals around the driving shaft (4); the rubber pad is fixed to the driving shaft (4) through a mounting seat (50); a plurality of first through holes (511) and second through holes (512) are arranged on the rubber pad, the first through holes (511) are used for mounting the rubber pad on the mounting seat (50), and the second through holes (512) are used for fixing the shovel support (53) and the rubber pad; a plurality of mounting tables (500) are arranged on the bottom of the mounting seat (50) corresponding to the first through holes (511), the rubber pad is screwed on the mounting tables (500) through fasteners (7) arranged in the first through holes (511), so that a gap is kept between the rubber pad and the mounting seat (50); a through hole (510) is arranged in the middle of the rubber pad, an elastic member (52) is arranged in the through hole (510), and the elastic member (52) is pressed between the mounting seat (50) and the shovel support (53); an upper blade surface (604) of the blade surface is arranged downwardly relative to the first blade surface (601) and the second blade surface (602), and the gap (603) extends upwardly to the upper blade surface (604). ​ ​ ​ ​ ​ 2. The laying course removal apparatus of claim 1, wherein: ​ 3. The laying strip removal apparatus according to claim 1 or 2, characterized in that: ​ 4. The laying course shovelling apparatus of claim 3, wherein: ​ 5. The laying course shovelling apparatus of claim 4, wherein: ​ 6. The mulch layer removal apparatus of claim 3, wherein: ​

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