A multiple surface grinding process for slope reduction of industrial building roof structure

Abstract

The invention relates to the technical field of roof grinding, and specifically to a process for multiple grinding of the slope of an industrial building roof structure, the process comprising the following steps: first, preparation work, constructing a casting template for the roof casting part, and fixing steel bars in the template; second, grinding treatment, after pouring concrete into the template, using a leveler to cyclically level and compact the unsolidified concrete for multiple times to increase the anti-seepage and anti-leakage performance; finally, drainage treatment, after the concrete solidifies, using a grinding device to grind the solidified concrete, grinding an inclined surface of the concrete to facilitate drainage and sewage discharge; after grinding the concrete multiple times, the density of the concrete can be improved, and the infiltration of water can be greatly reduced during use. At the same time, due to the increased density, the wear of the surface can be reduced during daily use, and the service life can be increased while avoiding water leakage.

Description

Technical Field

[0001] The invention relates to the technical field of roof grinding, in particular to a slope multiple grinding process for an industrial building roof structure. Background Art

[0002] When pouring concrete on the roof, the concrete poured on the roof floor is usually leveled, and a waterproof coating is subsequently applied to the concrete surface. Considering that the waterproof coating on the roof will gradually wear out under the sun, rain, and people walking, some water will still seep into the building after long-term use. At the same time, the existing technology usually only performs a single leveling process on the concrete. After long-term use, the concrete may seep into water due to insufficient density, which affects the stability of the building.

[0003] Considering that when encountering raised foreign objects when grinding the solidified concrete, the existing technology may cause the corners of the grinding disc to directly collide with the foreign objects if they are not avoided during grinding, which may cause damage to the grinding disc. At the same time, when the foreign objects are hit at high speed, the foreign objects may be shattered and splashed outward; considering that the equipment may encounter uneven surfaces during grinding, when encountering a roof surface with a large angle, the grinding operation may not be able to be performed normally. If grinding is performed normally, the dust baffle may not be able to wrap the grinding disc normally, which may cause dust to splash. Summary of the invention

[0004] The object of the present invention is to provide a multiple-surface grinding process for the slope of an industrial building roof structure to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a process for multiple surface grinding of the slope of an industrial building roof structure, and the process comprises the following steps:

[0007] S1. Preparation work, cleaning and measuring the roof pouring part, ensuring the pouring thickness, building the pouring formwork, and fixing the steel bars in the formwork to complete the preparation work;

[0008] S2. Surface grinding: pour concrete into the formwork first, use a leveler to initially level and compact the unsolidified concrete for rough grinding, then use a leveler to level and compact the surface for fine grinding, and level and compact the surface again before the concrete is completely solidified. Repeated leveling and grinding cycles will make the density of the roof floor concrete reach the best state, thereby increasing the anti-seepage and anti-leakage performance;

[0009] S3. Drainage treatment: after the concrete solidifies, use grinding equipment to grind the solidified concrete and grind out an inclined surface on the concrete to facilitate drainage and sewage discharge;

[0010] The grinding device comprises a main body shell and a grinding unit; one side of the main body shell is fixedly connected to the grinding unit, handles are fixedly connected to both sides of the main body shell near the top, one side of the main body shell is fixedly connected to a hydraulic unit, the hydraulic unit is connected to the grinding unit through a hydraulic pipe, a moving wheel is arranged at the bottom of one side of the main body shell near the grinding unit, a limited support foot is arranged at the bottom of one side of the main body shell away from the grinding unit, and a cover plate is arranged at one side of the main body shell away from the grinding unit;

[0011] The grinding unit comprises a supporting shell, a grinding mechanism and a driving unit, wherein the driving unit is located at the top of the supporting shell and is used to drive the grinding mechanism to perform rotational grinding; the grinding mechanism is located below the supporting shell and is fixedly connected to the driving unit;

[0012] The grinding mechanism comprises a support plate, the support plate is fixedly connected to the driving unit, a rubber dust cover is fixedly connected to the bottom of the support plate, a grinding disc is slidably connected in the rubber dust cover, and an angle adjustment mechanism is fixedly connected to the top of the grinding disc;

[0013] The angle adjustment mechanism includes a traction block, one end of which is fixedly connected to the grinding disc, and the other end of which passes through the support plate and is fixedly connected to the follower block; a piston rod is fixedly connected to the bottom of one end of the follower block away from the traction block, and the piston rod passes through the support plate and the rubber dust cover, and the piston rods are slidably connected to the support plate and the rubber dust cover.

[0014] By adopting the above technical scheme, in this process, when pouring the roof floor, in addition to the waterproof coating, the anti-seepage and waterproof properties of the floor concrete itself are taken into consideration. In the prior art, only a single leveling and grinding is performed after the floor is poured, and the density of the concrete is poor. Considering that the anti-seepage and waterproof properties of the concrete itself should be improved, when pouring the floor, the unsolidified concrete is leveled and ground for multiple cycles to compact the concrete on the roof floor, thereby reducing the gap between the concretes and improving the density of the concrete. When using it, the infiltration of water can be greatly reduced. At the same time, the increased density will also reduce the wear of the surface during daily use, thereby avoiding water leakage and increasing the service life.

[0015] When encountering larger foreign objects, the rubber dust cover will be squeezed and deformed by the protruding foreign objects or the roof surface with a larger angle contacting it during the movement. The squeezing of the rubber dust cover will push the internal air. When the air inside the rubber dust cover is pushed, the traction block will pull up the rotating disk and grind it flat after the protruding foreign objects enter, so as to avoid direct collision and damage between the rotating disk and the grinding disc when encountering foreign objects.

[0016] Furthermore, the drive unit includes a drive motor, which is fixedly connected to the main shell; a cavity is opened inside the support shell, and the output shaft of the drive motor passes through the support shell and extends to the bottom of the cavity, and the bottom of the output shaft is fixedly connected to a first gear; the first gear meshes with a second gear; the second gear is located at the center of the support shell, and the bottom of the second gear is fixedly connected to a hollow shaft; the hollow shaft passes through the bottom of the support shell and is fixedly connected to the support plate.

[0017] By adopting the above technical solution, when the roof surface is polished, the first gear is driven to rotate by the driving motor, so that it drives the second gear to rotate. When the second gear rotates, it drives the support plate to rotate through the hollow shaft. The support plate and the polishing disk are connected by the angle adjustment mechanism, so that the support plate and the polishing disk rotate synchronously. When the polishing disk rotates, the roof surface can be polished; when the polishing speed needs to be changed, it can be controlled by adjusting the speed of the driving motor.

[0018] Furthermore, the grinding disc includes a rotating disc, the top of which is fixedly connected to the traction block, and a plurality of grinding discs are installed in a circular array on the bottom of the rotating disc; the grinding discs are fan-shaped, and the corners of the bottom of the grinding discs are chamfered and bent in the opposite direction of rotation, and the gaps between adjacent grinding discs form dust exhaust grooves, which are used to collect dust.

[0019] By adopting the above technical scheme, a grinding disc is installed at the bottom of the rotating disk, and grinding can be carried out when the grinding disc contacts the roof surface and rotates, and a suitable grinding disc can be replaced according to different grinding standards; since the corners of the bottom surface of the grinding disc are chamfered, when encountering smaller foreign objects, the rotating disk can be lifted along the height of the foreign objects under the action of the pressure adjustment mechanism, and then grind them; since the grinding disc is fan-shaped and a dust exhaust groove is set, dust will enter the dust exhaust groove when the fan-shaped grinding disc is grinding, and because the corners of the bottom surface of the grinding disc are bent in the opposite direction of rotation, the dust will be subjected to centrifugal force in the dust exhaust groove during rotation, and flow along the edge of the dust exhaust groove to the center of the rotating disk; thereby, more powder can be collected and accommodated.

[0020] Furthermore, the rubber dust cover is made of wear-resistant material, the side of the rubber dust cover in contact with the rotating disk is made of metal material, and the part of the piston rod that moves in the rubber dust cover is made of metal material.

[0021] By adopting the above technical scheme, since the rubber dust cover will inevitably come into contact with the roof surface and rub against it during the operation of the equipment, and since the rubber dust cover is made of wear-resistant material, compared with the existing technology, it will not only fit the roof surface when in contact with the roof surface, avoiding rigid contact with the roof surface and reducing the wear caused by contact with the roof surface, but it can also maintain its own shape through its own toughness, thereby increasing its service life; since some parts of the rubber dust cover are made of metal material, its shape can be kept unchanged during use, ensuring that the piston rod can move smoothly, and when encountering foreign objects squeezing the rubber dust cover, the rubber dust cover will not squeeze the grinding disc, thereby avoiding the grinding disc being squeezed and causing failure to grind normally.

[0022] Furthermore, the grinding equipment also includes a dust suction unit, which includes an air pump, a dust suction pipe and a collecting filter. The air pump is located at the top of the main shell and is connected to the interior of the main shell; one end of the dust suction pipe is fixed to one side of the main shell and is connected to the main shell, and the other end of the dust suction pipe passes through the center of the support plate and the rotating disk and the bottom surface is flush with the bottom surface of the rotating disk. The part of the dust suction pipe located below the support shell is made of flexible material; the collecting filter is located inside the main shell and is clamped with the main shell, the collecting filter is connected to the dust suction pipe, and the collecting filter is used to store dust generated by grinding.

[0023] By adopting the above technical solution, the dust can be sucked out at the center of the grinding mechanism to ensure that the suction force at all points on the bottom surface of the grinding mechanism is uniform, thereby avoiding the inability to suck in dust due to uneven suction force. When the dust in the dust exhaust trough gathers at the center of the rotating disk, the dust can be sucked out through the dust suction pipe through the suction force of the air pump, and the dust is sucked into the collection filter through the dust suction pipe for collection; thereby, the impact of dust on the rubber dust cover can be reduced and the service life can be increased.

[0024] Furthermore, the grinding unit also includes a pressure regulating mechanism, which is connected to a hydraulic pipe, and the pressure regulating mechanism includes a transmission pipe and a hydraulic disc, and the transmission pipe runs through a supporting shell; the hydraulic disc is fixedly connected to the bottom of the supporting shell, and the hydraulic disc is communicated with the hydraulic pipe through the transmission pipe, the hydraulic disc is sleeved on the outer wall of the hollow shaft, and a plurality of groups of hydraulic holes are provided in an annular array at the bottom of the hydraulic disc, and a hydraulic block is slidably connected in the hydraulic holes; a push plate is fixedly connected to the bottom of the hydraulic block; the push plate is sleeved on the outer wall of the hollow shaft, and a first spring is fixedly connected between the push plate and the hydraulic disc; a pressure hole is provided in an annular array on the surface of the support plate, and a pressure block is slidably connected in the pressure hole; the bottom of the push plate contacts the pressure block; an adjusting hole is provided on the top surface of the rotating disc, and the adjusting hole is slidably connected to the outer wall of the bottom of the pressure block; a spring baffle is provided on the top of the pressure block, and a second spring is fixedly connected between the spring baffle and the support plate, and the second spring is used to reset the pressure block.

[0025] By adopting the above technical solution, when encountering an uneven roof surface or grinding a protrusion, the hydraulic pressure of the hydraulic unit can be increased. At this time, the contact pressure between the grinding disc and the roof surface will increase, and the efficiency and effect of grinding will be increased, thereby grinding the uneven or protruding roof surface; when the contact pressure between the grinding disc and the roof surface increases, the rotation speed of the rotating disk will be slowed down, thereby facilitating observation and reducing dust splashing. If the grinding efficiency needs to be increased, it only needs to increase the power of the driving motor.

[0026] Furthermore, a partition plate is slidably connected between adjacent piston rods; the partition plate evenly divides the interior of the rubber dust cover into multiple spaces, one end of the partition plate away from the piston rod is in a free state, and the partition plate is used to support the rubber dust cover.

[0027] By adopting the above technical solution, when the air inside the rubber dust cover is pushed, it will push the piston rod above it in the separate space separated by the partition plate. When the piston rod is pushed, it will push the follower block and the traction block to move upward, and the traction block will pull the rotating disk to pull it up, and the rotating disk will be lifted up by the pulling force in a single direction.

[0028] Furthermore, a fixing block is symmetrically fixedly connected to one side of the handle close to the main shell, and a pressing rod is hingedly connected to the opposite side of the fixing block; a steel wire is fixedly connected to the one side of the pressing rod close to the fixing block; the steel wire passes through the fixing block and the handle and is fixedly connected to a hydraulic connecting rod at one end away from the pressing rod; the hydraulic connecting rod is fixedly connected to a pushing block at one end away from the steel wire and is slidably connected to the inner wall of the hydraulic unit, the pushing block is used to generate hydraulic pressure for the hydraulic unit, and the middle part of the hydraulic connecting rod is rotatably connected to a rotating rod; the rotating rod is fixedly connected to the outer wall of the main shell.

[0029] By adopting the above technical scheme, the steel wire can be pulled by the setting of the pressing rod, so that the hydraulic pressure of the hydraulic unit can be controlled. The hydraulic pressure of the hydraulic unit can be manually controlled, and the grinding intensity can also be manually adjusted when grinding uneven surfaces; and emergency braking operation can be performed when the equipment fails. In an emergency, the pressure regulating mechanism can push the rotating disk and the grinding disc to contact the roof surface to achieve the effect of emergency braking.

[0030] Furthermore, two thirds of the inner space of the rubber dust cover is filled with expanded perlite, and one third of the inner space of the rubber dust cover is used for the movement of the piston rod.

[0031] By adopting the above technical solution, by filling the rubber dust cover with expanded perlite, when the equipment is running, the noise can collide with the expanded perlite and consume the energy of the noise, so that the sound energy is converted into heat energy and lost, that is, the noise is absorbed. The amount of noise absorption can be increased during grinding to prevent noise from damaging people's hearing.

[0032] Furthermore, a status monitoring screen is provided at the top of one side of the main body shell close to the handle, and the status monitoring screen is used to monitor the status of the grinding mechanism and the pressure regulating mechanism; a level is provided inside the grinding mechanism.

[0033] By adopting the above technical solution, the angle changes of the grinding mechanism and the hydraulic changes inside the pressure regulating mechanism and the hydraulic unit can be observed during the operation of the equipment through the setting of the level meter and the status monitoring screen, so as to prevent equipment damage caused by large angles or operational errors.

[0034] The present invention has the following beneficial effects:

[0035] 1. The present invention can improve the density of concrete after multiple leveling and grinding of the concrete surface, which can greatly reduce the infiltration of water during use. At the same time, due to the increased density, the wear of the surface can be reduced during daily use, thereby avoiding water leakage and increasing the service life.

[0036] 2. When encountering a larger foreign object, the present invention can squeeze and deform the rubber dust cover by allowing the foreign object or the roof surface at a larger angle to contact the rubber dust cover during movement. The squeezing of the rubber dust cover will push the internal air. When the air inside the rubber dust cover is pushed, the traction block will pull up the rotating disk and grind the protruding foreign object flat after it enters, thereby avoiding damage caused by direct impact of the grinding disk when encountering a foreign object.

[0037] 3. When encountering an uneven roof surface or grinding a protrusion, the present invention can increase the hydraulic pressure of the hydraulic unit. At this time, the contact pressure between the grinding disc and the roof surface will increase, and the efficiency and effect of grinding will be increased, thereby grinding the uneven or protruding roof surface; when the contact pressure between the grinding disc and the roof surface increases, the rotation speed of the rotating disk will be slowed down, thereby facilitating observation and reducing dust splashing. If it is necessary to increase the grinding efficiency, it only needs to increase the power of the driving motor.

[0038] 4. When grinding the roof surface, the present invention starts the driving motor and rotates the grinding disc installed at the bottom of the rotating disk to perform grinding. The appropriate grinding disc can be replaced according to different grinding standards. Since the grinding disc is fan-shaped and the edges are bent in the opposite direction of rotation, and the dust exhaust groove is set, the dust will move toward the center along the inner wall of the dust exhaust groove during grinding. At the same time, since the dust suction pipe is at the center of the rotating disk, the dust is sucked out under the suction force of the air pump, and the suction force at each part of the dust exhaust groove is even, so as to avoid the inability to inhale dust due to uneven suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0040] Figure 1 It is a schematic diagram of the process flow of the present invention;

[0041] Figure 2 It is a schematic diagram of the front three-dimensional structure of the main body of the present invention;

[0042] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle part;

[0043] Figure 4 It is a schematic diagram of the three-dimensional structure of the back of the main body of the present invention;

[0044] Figure 5 It is a cross-sectional view of the interior of the main body of the present invention;

[0045] Figure 6 It is a cross-sectional view of the grinding unit of the present invention;

[0046] Figure 7 For the present invention Figure 6 A partial enlarged view of point C in the middle;

[0047] Figure 8 It is an exploded view of the grinding mechanism and the pressure regulating mechanism of the present invention;

[0048] Fig. 9 For the present invention Figure 8 A partial enlarged view of point D in the middle;

[0049] Fig.10 This is a schematic diagram of the bottom structure of the grinding mechanism of the present invention;

[0050] Fig.11 This is an internal cross-sectional view of the grinding mechanism of the present invention.

[0051] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0052] In the figure: 1. main body shell; 11. support shell; 12. drive motor; 13. air pump; 14. dust suction pipe; 15. handle; 151. fixed block; 152. pressing rod; 153. steel wire; 16. hydraulic unit; 161. hydraulic connecting rod; 18. limit support foot; 19. collection filter; 2. grinding mechanism; 21. first gear; 22. second gear; 23. support plate; 24. rotating disk; 25. grinding disc; 26. rubber dust cover; 3. pressure regulating mechanism; 31. transmission tube; 32. hydraulic disk; 33. hydraulic block; 34. push plate; 35. first spring; 36. pressing block; 37. second spring; 4. angle adjusting mechanism; 41. traction block; 42. follower block; 43. piston rod; 45. partition plate; 5. grinding unit; 6. dust suction unit; 7. driving unit; 8. grinding disk. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] See also Figure 1-Figure 11 As shown, the present invention is a process for multiple surface grinding of the slope of the roof structure of an industrial building, and the process comprises the following steps:

[0055] S1. Preparation work, cleaning and measuring the roof pouring part, ensuring the pouring thickness, building the pouring formwork, and fixing the steel bars in the formwork to complete the preparation work;

[0056] S2. Surface grinding: pour concrete into the formwork first, use a leveler to initially level and compact the unsolidified concrete for rough grinding, then use a leveler to level and compact the surface for fine grinding, and level and compact the surface again before the concrete is completely solidified. Repeated leveling and grinding cycles will make the density of the roof floor concrete reach the best state, thereby increasing the anti-seepage and anti-leakage performance;

[0057] S3. Drainage treatment: after the concrete solidifies, use grinding equipment to grind the solidified concrete and grind out an inclined surface on the concrete to facilitate drainage and sewage discharge;

[0058] The grinding device comprises a main body shell 1 and a grinding unit 5; one side of the main body shell 1 is fixedly connected to the grinding unit 5, handles 15 are fixedly connected to both sides of the main body shell 1 near the top, one side of the main body shell 1 is fixedly connected to a hydraulic unit 16, the hydraulic unit 16 is connected to the grinding unit 5 through a hydraulic pipe, a moving wheel is arranged at the bottom of one side of the main body shell 1 near the grinding unit 5, a limiting support foot 18 is arranged at the bottom of one side of the main body shell 1 away from the grinding unit 5, and a cover plate is arranged at one side of the main body shell 1 away from the grinding unit 5;

[0059] The grinding unit 5 includes a supporting shell 11, a grinding mechanism 2 and a driving unit 7. The driving unit 7 is located at the top of the supporting shell 11, and the driving unit 7 is used to drive the grinding mechanism 2 to perform rotational grinding; the grinding mechanism 2 is located below the supporting shell 11, and the grinding mechanism 2 is fixedly connected to the driving unit 7;

[0060] The grinding mechanism 2 includes a support plate 23, the support plate 23 is fixedly connected to the driving unit 7, a rubber dust cover 26 is fixedly connected to the bottom of the support plate 23, a grinding disc 8 is slidably connected inside the rubber dust cover 26, and an angle adjustment mechanism 4 is fixedly connected to the top of the grinding disc 8;

[0061] The angle adjustment mechanism 4 includes a traction block 41, one end of which is fixedly connected to the grinding disc 8, and the other end of the traction block 41 passes through the support plate 23 and is fixedly connected to the follower block 42; a piston rod 43 is fixedly connected to the bottom of the end of the follower block 42 away from the traction block 41, and the piston rod 43 passes through the support plate 23 and the rubber dust cover 26, and the piston rod 43 is slidably connected to the support plate 23 and the rubber dust cover 26.

[0062] In this embodiment, when pouring the roof floor, in addition to the waterproof coating, the floor concrete itself has impermeability and waterproofness. In the prior art, only a single leveling and grinding is performed after the floor is poured, and the density of the concrete is poor. Considering that the impermeability and waterproofness of the concrete itself should be improved, when pouring the floor, the unsolidified concrete is leveled and ground for multiple cycles to compact the concrete on the roof floor, narrowing the gap between the concretes, thereby improving the density of the concrete, which can greatly reduce the infiltration of water during use. At the same time, due to the increased density, the wear of the surface is also reduced during daily use, thereby preventing water leakage and increasing the service life;

[0063] Considering that when encountering raised foreign objects during grinding, the prior art may cause the corners of the grinding disc 8 to directly collide with the foreign objects if they are not avoided during grinding, which may cause the grinding disc 8 to be damaged, and the foreign objects may be crushed and splashed outward when they collide with the foreign objects at high speed; considering that the equipment may encounter uneven surfaces during grinding, when encountering a large angle of the roof surface, the grinding operation may not be performed normally. If grinding is performed normally, the dust baffle may not be able to wrap the grinding disc 8 normally, which may cause dust to splash;

[0064] When grinding the roof surface, a person holds the handle 15 to push the device to move. During the movement, the grinding mechanism 2 grinds the roof surface. When encountering an uneven roof surface, the grinding mechanism 2 will change the angle according to the roof surface through the angle adjustment mechanism 4 to ensure that the device will not tilt when encountering an uneven roof surface, thereby reducing the splashing of dust.

[0065] When grinding, the support plate 23 is driven to rotate by the driving unit 7. When the support plate 23 rotates, the grinding disc 8 can be rotated by the connection between the angle adjustment mechanism 4 and the grinding disc 8, so that the grinding disc 8 can grind the roof surface;

[0066] When encountering a larger protruding foreign object, the protruding foreign object contacts the rubber dust cover 26 during the movement, causing it to be squeezed and deformed. When the air inside the rubber dust cover 26 is pushed, it will push the piston rod 43 to move. When the piston rod 43 is pushed, it will push the follower block 42 and the traction block 41 to move upward, and the traction block 41 will pull the rotating disk 24 to pull it up. The rotating disk 24 will be lifted up, and after the foreign object enters, the thrust on the rubber dust cover 26 will be lost, so that the rotating disk 24 will fall down, and after the protruding foreign object enters, it will be polished flat by the rotating disk 24, so as to avoid the grinding disc 25 directly hitting the foreign object and causing damage when the equipment is moving; because the rubber dust cover 26 falls down due to the loss of the force of the foreign object, the rubber dust cover 26 has been restored to its original state when the rotating disk 24 is polishing the foreign object. At this time, the splash generated by the polishing of the foreign object will be blocked by the rubber dust cover 26, so as to avoid the splashing of foreign objects and prevent the personnel in front of the equipment from being injured by the splashing foreign objects;

[0067] When encountering a roof surface with a large angle, the roof surface will squeeze the rubber dust shield 26 and push the air through the air inside the rubber dust shield 26, so that the traction block 41 moves upward. At this time, the rubber dust shield 26 will adapt to the angle of the roof surface, thereby reducing the splashing of dust;

[0068] By setting the limiting support foot 18, the grinding mechanism 2 contacts the roof surface when reaching the maximum adjustment angle and prevents the equipment from moving, thereby preventing the grinding mechanism 2 from breaking due to excessive angle and causing damage to the equipment, and preventing the equipment from further tilting to prevent the equipment from tipping over due to a change in the center of gravity of the equipment.

[0069] Specifically, the drive unit 7 includes a drive motor 12, which is fixedly connected to the main shell 1; a cavity is opened inside the support shell 11, and the output shaft of the drive motor 12 passes through the support shell 11 and extends to the bottom of the cavity, and the bottom of the output shaft is fixedly connected with a first gear 21; the first gear 21 meshes with the second gear 22; the second gear 22 is located at the center of the support shell 11, and the bottom of the second gear 22 is fixedly connected with a hollow shaft; the hollow shaft passes through the bottom of the support shell 11 and is fixedly connected to the support plate 23.

[0070] In this embodiment, when the roof surface is polished, the first gear 21 is driven to rotate by the driving motor 12, so that it drives the second gear 22 to rotate. When the second gear 22 rotates, it drives the support plate 23 to rotate through the hollow shaft. The support plate 23 and the polishing disk 8 are connected by the angle adjustment mechanism 4, so that the support plate 23 and the polishing disk 8 rotate synchronously. When the polishing disk 8 rotates, the roof surface can be polished; when the polishing speed needs to be changed, it can be controlled by adjusting the speed of the driving motor 12.

[0071] Specifically, the grinding disc 8 includes a rotating disc 24, the top of the rotating disc 24 is fixedly connected to the traction block 41, and a plurality of grinding discs 25 are installed in a circular array on the bottom surface of the rotating disc 24; the grinding discs 25 are fan-shaped, and the corners of the bottom surface of the grinding discs 25 are chamfered and bent in the opposite direction of rotation, and the gaps between adjacent grinding discs 25 form dust exhaust grooves for collecting dust.

[0072] In this embodiment, it is considered that during the grinding process, dust will be thrown onto the rubber dust cover 26 due to the centrifugal force of the grinding disc 8. When the grinding disc 8 rotates at a high speed, the dust may damage the rubber dust cover 26 due to the high-speed impact, and the inertia of the foreign matter may also increase. At this time, if the suction force of the air pump 13 is insufficient, the high speed may be caused, thereby reducing the life of the rubber dust cover 26.

[0073] By installing the grinding disc 25 at the bottom of the rotating disk 24, grinding can be carried out when the grinding disc 25 contacts the roof surface and rotates, and the appropriate grinding disc 25 can be replaced according to different grinding standards; since the corners of the bottom surface of the grinding disc 25 are chamfered, when encountering smaller foreign objects, the rotating disk 24 can be lifted along the height of the foreign objects under the action of the pressure regulating mechanism 3, and then grind them; since the grinding disc 25 is fan-shaped and the dust exhaust groove is set, dust will enter the dust exhaust groove when the fan-shaped grinding disc 25 is grinding, and because the corners of the bottom surface of the grinding disc 25 are bent in the opposite direction of rotation, the dust will be subjected to centrifugal force in the dust exhaust groove during rotation, and flow along the edge of the dust exhaust groove to the center of the rotating disk 24; thereby, more dust can be collected and accommodated.

[0074] Specifically, the rubber dust cover 26 is made of wear-resistant material, the surface of the rubber dust cover 26 that contacts the rotating disk 24 is made of metal material, and the portion of the piston rod 43 that moves in the rubber dust cover 26 is made of metal material.

[0075] In the present embodiment, since the rubber dust cover 26 will inevitably come into contact with the roof surface and rub against it during the operation of the equipment, and since the rubber dust cover 26 is made of wear-resistant material, compared with the prior art, it will not only fit the roof surface when in contact with the roof surface, avoiding rigid contact with the roof surface and reducing the wear caused by contact with the roof surface, but it can also maintain its own shape through its own toughness, thereby increasing its service life; since some parts of the rubber dust cover 26 are made of metal material, its shape can be kept unchanged during use, ensuring that the piston rod 43 can move smoothly, and when encountering foreign objects squeezing the rubber dust cover 26, the rubber dust cover 26 will not squeeze the grinding disc 8, thereby avoiding the grinding disc 8 being squeezed and unable to grind normally.

[0076] Specifically, the grinding equipment also includes a dust suction unit 6, which includes an air pump 13, a dust suction pipe 14 and a collecting filter 19. The air pump 13 is located at the top of the main shell 1 and is connected to the inside of the main shell 1; one end of the dust suction pipe 14 is fixed to one side of the main shell 1 and is connected to the main shell 1, and the other end of the dust suction pipe 14 passes through the center of the support plate 23 and the rotating disk 24 and the bottom surface is flush with the bottom surface of the rotating disk 24. The part of the dust suction pipe 14 located below the support shell 11 is made of flexible material; the collecting filter 19 is located inside the main shell 1 and is clamped with the main shell 1. The collecting filter 19 is connected to the dust suction pipe 14, and the collecting filter 19 is used to store dust generated by grinding.

[0077] In this embodiment, considering that the prior art usually sets a dust baffle on the periphery of the grinding mechanism 2, and sets a dust suction port on the dust baffle to suck in dust, since the grinding disc 8 will generate centrifugal force on the dust, the dust will be caused by the centrifugal force so that the dust suction port is only set at the edge of the grinding mechanism 2, which will result in a smaller dust suction force on the other side of the dust suction port, which may result in poor dust removal effect on the other side of the dust suction port during use, and cause dust to splash during the movement of the equipment;

[0078] By sucking out the dust at the center of the grinding mechanism 2, it can be ensured that the suction force at all locations on the bottom surface of the grinding mechanism 2 is uniform, thereby avoiding the inability to suck in dust due to uneven suction force. When the dust in the dust exhaust trough gathers at the center of the rotating disk 24, the dust can be sucked out through the dust suction pipe 14 through the suction force of the air pump 13, and the dust is sucked into the collection filter 19 through the dust suction pipe 14 for collection; thereby, the impact of dust on the rubber dust cover 26 can be reduced, thereby increasing the service life.

[0079] Specifically, the grinding unit 5 also includes a pressure regulating mechanism 3, which is connected to the hydraulic pipe. The pressure regulating mechanism 3 includes a transmission pipe 31 and a hydraulic disc 32. The transmission pipe 31 penetrates the supporting shell 11; the hydraulic disc 32 is fixedly connected to the bottom of the supporting shell 11, and the hydraulic disc 32 is connected to the hydraulic pipe through the transmission pipe 31. The hydraulic disc 32 is sleeved on the outer wall of the hollow shaft, and a plurality of hydraulic holes are provided in an annular array at the bottom of the hydraulic disc 32. A hydraulic block 33 is slidably connected in the hydraulic hole; a push plate 34 is fixedly connected to the bottom of the hydraulic block 33. The push plate 34 is sleeved on the outer wall of the hollow shaft, and a first spring 35 is fixedly connected between the push plate 34 and the hydraulic disc 32; a ring array of pressing holes is provided on the surface of the support plate 23, and a pressing block 36 is slidably connected in the pressing holes; the bottom of the push plate 34 is in contact with the pressing block 36; an adjustment hole is provided on the top surface of the rotating disc 24, and the adjustment hole is slidably connected to the outer wall of the bottom of the pressing block 36; a spring baffle is provided on the top of the pressing block 36, and a second spring 37 is fixedly connected between the spring baffle and the support plate 23, and the second spring 37 is used to reset the pressing block 36.

[0080] In this embodiment, when not in use, the hydraulic unit 16 does not apply pressure to the transmission pipe 31 and the hydraulic disc 32. At this time, the push plate 34 is kept in the initial position under the force of the first spring 35 and the second spring 37 pushing the pressing block 36, and the pressing block 36 is at the top of the adjustment hole.

[0081] When grinding the roof surface, the hydraulic pressure in the transmission pipe 31 is increased by the hydraulic unit 16, and the hydraulic block 33 is pushed by the hydraulic pressure in the hydraulic disc 32, so that the hydraulic block 33 pushes the push plate 34 to move. When the push plate 34 moves, it will contact and push the pressing block 36 to move downward, so that the bottom of the pressing block 36 contacts the bottom of the adjustment hole, and pushes the rotating disc 24 to move downward. At the same time, the pressing block 36 is pushed to compress the second spring 37. At this time, the second spring 37 is not fully compressed. When the rotating disc 24 moves downward, it will increase the pressure of the grinding disc 25 on the roof surface, thereby making the grinding disc 25 completely contact with the roof surface, and grinding can be performed normally. At this time, the hydraulic unit 16 only outputs a small hydraulic pressure, and it is only necessary to ensure that the grinding disc 25 is in contact with the roof surface; when the angle of the roof surface changes, the roof surface will squeeze the grinding disc 25 and the rotating disc 24 to move upward, and the pressing block 36 pushes the push plate 34 so that the hydraulic block 33 can be pushed into the hydraulic disc 32, so that the angles of the rotating disc 24 and the grinding disc 25 are adaptive and fit the angle of the roof surface;

[0082] When the angle of the roof surface is matched and adjusted by the angle adjustment mechanism 4, the rotating disk 24 is lifted upward to push the pressing block 36 to move upward, and at the same time pushes the push plate 34 to move the hydraulic block 33 into the hydraulic disk 32 so that it has a lifting space. At this time, the hydraulic unit 16 can use less hydraulic pressure to enable the pressure adjustment mechanism 3 to push the rotating disk 24 downward;

[0083] When encountering an uneven roof surface or grinding a protrusion, the hydraulic pressure of the hydraulic unit 16 can be increased so that the pressing block 36 continues to apply pressure to push the rotating disk 24 downward. At this time, the contact pressure between the grinding disc 25 and the roof surface increases. At the same time, the increase in the contact pressure between the grinding disc 25 and the roof surface will increase the efficiency and effect of grinding, thereby grinding uneven or protruding roof surfaces; when the contact pressure between the grinding disc 25 and the roof surface increases, the rotation speed of the rotating disk 24 will be slowed down, thereby facilitating observation and reducing the splashing of dust. If it is necessary to increase the grinding efficiency, it is only necessary to increase the power of the driving motor 12;

[0084] When the driving motor 12 is added, the equipment will run at a high speed. At this time, the grinding position of the equipment will be offset due to the influence of centrifugal force and inertia. When the grinding disc 25 increases the pressure between it and the roof surface, the roof surface can be completely contacted with the grinding disc 25. At this time, grinding can prevent the equipment from being offset by the pressure between it and the roof surface, and can avoid offset during grinding, so as to prevent the position that does not need to be polished or has been polished from being polished, and avoid the roof surface angle from changing significantly due to excessive polishing or the appearance of potholes caused by local grinding; in the event of an emergency such as about to hit the wall, the rotating disk 24 and the grinding disc 25 can be pressed down to quickly decelerate the equipment, so that the equipment stops in time to prevent accidents;

[0085] After grinding is completed, the hydraulic pressure of the transfer pipe 31 and the hydraulic disc 32 is reduced through the hydraulic unit 16, and the push plate 34 is pulled upward under the action of the first spring 35, thereby resetting the push plate 34 and the pressing block 36; at this time, the pressing block 36 will be reset under the force of the second spring 37.

[0086] Specifically, a partition plate 45 is slidably connected between adjacent piston rods 43 ; the partition plate 45 evenly divides the interior of the rubber dust cover 26 into a plurality of spaces, and one end of the partition plate 45 away from the piston rod 43 is in a free state, and the partition plate 45 is used to support the rubber dust cover 26 .

[0087] In this embodiment, it is considered that the air inside the rubber dust cover 26 pushes the piston rod 43 to move, which will drive the rotating disk 24 to move upward. However, when encountering a small foreign object, the driving force of the air may be insufficient, and the rotating disk 24 cannot be effectively lifted.

[0088] When the air inside the rubber dust cover 26 is pushed, it will push the piston rod 43 above it in the separate space separated by the partition plate 45. When the piston rod 43 is pushed, it will push the follower block 42 and the traction block 41 to move upward, and the traction block 41 will pull the rotating disk 24 to pull it up, and the rotating disk 24 will be pulled in a single direction and tilted;

[0089] Since the end of the partition plate 45 away from the piston rod 43 is in a free state, when the foreign matter contacts the rubber dust cover 26 and pushes the air inside the rod, the partition plate 45 will be offset to the side away from the foreign matter, so that even the space not in contact with the foreign matter will push the internal air, thereby lifting the rotating disk 24, thereby preventing the other side of the rotating disk 24 from contacting the roof surface with an increase in the area after one side of the rotating disk 24 is lifted, thereby preventing the occurrence of excessive grinding;

[0090] When the contact surface of the foreign matter is at the same position as the partition plate 45, the partition plate 45 will be pushed to move to either side, and the air inside the rubber dust cover 26 will be pushed by the movement of the partition plate 45, so that the rotating disk 24 and the grinding plate 25 can be lifted over a larger area. At the same time, when encountering a wider protrusion, the rotating disk 24 and the grinding plate 25 can be lifted over a larger area and grinding can also be performed.

[0091] Specifically, a fixing block 151 is symmetrically fixedly connected to one side of the handle 15 close to the main shell 1, and a pressing rod 152 is hinged on the opposite side of the fixing block 151; a steel wire 153 is fixedly connected to the side of the pressing rod 152 close to the fixing block 151; the steel wire 153 passes through the fixing block 151 and the handle 15 and is fixedly connected to a hydraulic connecting rod 161 at one end away from the pressing rod 152; the hydraulic connecting rod 161 is fixedly connected to a pushing block at one end away from the steel wire 153 and is slidably connected to the inner wall of the hydraulic unit 16, the pushing block is used to generate hydraulic pressure for the hydraulic unit 16, and the middle part of the hydraulic connecting rod 161 is rotatably connected to a rotating rod; the rotating rod is fixedly connected to the outer wall of the main shell 1.

[0092] In this embodiment, it is considered that some existing technologies use tires on motors and other driving devices to move the device to save the force of personnel pushing the device. However, when the device is in use, it may encounter equipment failure or there may be people or obstacles on the road, which requires the ability to have emergency braking;

[0093] By setting the pressing rod 152, the steel wire 153 can be pulled. Since the length of the steel wire 153 is fixed, when the steel wire 153 is pulled, the hydraulic connecting rod 161 will be pulled. At this time, the hydraulic connecting rod 161 will make a small angle rotation on the rotating shaft, and push the pushing block to move while rotating, thereby generating hydraulic pressure on the hydraulic unit 16, and the hydraulic pressure is transmitted to the pressure regulating mechanism 3 and the tire respectively; through the above operation, the hydraulic pressure of the hydraulic unit 16 can be manually controlled, and the intensity of the grinding can also be manually adjusted when grinding an uneven surface; and emergency braking operation can be performed when the equipment fails. In an emergency, the pressure regulating mechanism 3 can push the rotating disk 24 and the grinding plate 25 to make them contact the roof surface to achieve the effect of emergency braking.

[0094] Specifically, two thirds of the inner space of the rubber dust cover 26 is filled with expanded perlite, and one third of the inner space of the rubber dust cover 26 is used for the movement of the piston rod 43 .

[0095] In this embodiment, it is considered that the noise is high during the use of the equipment, which may cause damage to the hearing of the staff; by filling the rubber dust cover 26 with expanded perlite, when the equipment is running, the noise can collide with the expanded perlite and consume the energy of the noise, so that the sound energy is converted into heat energy and lost, that is, the noise is absorbed; in the initial state, the rotating disk 24 will not completely contact the roof surface due to the traction of the pressure regulating mechanism 3. At this time, the piston rod 43 will be at the top of the rubber dust cover 26. When the rotating disk 24 moves downward to the extreme position, the piston rod 43 will completely move one-third of the space of the rubber dust cover 26. When the piston rod 43 moves, the air inside will be kept between the expanded perlite, making the expanded perlite more dispersed, so that the contact area between the noise and the expanded perlite is larger, thereby increasing the amount of noise absorption during grinding, and avoiding noise damage to the hearing of personnel; at the same time, when there is a protrusion squeezing the rubber dust cover 26, the expanded perlite inside will be squeezed, and the piston rod 43 will be pushed to move by the expanded perlite. Pushing by the expanded perlite is more stable than pushing the piston rod 43 by air.

[0096] Specifically, a status monitoring screen is provided on the top of one side of the main shell 1 close to the handle 15 , and the status monitoring screen is used to monitor the status of the grinding mechanism 2 and the pressure regulating mechanism 3 ; a level is provided inside the grinding mechanism 2 .

[0097] In this embodiment, by setting up a level meter and a status monitoring screen, the angle changes of the grinding mechanism 2 and the hydraulic changes inside the pressure regulating mechanism 3 and the hydraulic unit 16 can be observed during the operation of the equipment to prevent damage to the equipment due to large angles or operational errors.

[0098] When using,

[0099] First, when grinding the roof surface, a person holds the handle 15 to push the device to move. During the movement, the roof surface is grinded by the grinding mechanism 2. When grinding, the first gear 21 is driven by the driving motor 12 to rotate so that it drives the second gear 22 to rotate. When the second gear 22 rotates, it drives the support plate 23 to rotate through the hollow shaft. The support plate 23 and the rotating disk 24 are connected by the angle adjustment mechanism 4, so that the support plate 23 and the rotating disk 24 rotate synchronously. When the grinding disk 8 rotates, the roof surface can be grinded; when the grinding speed needs to be changed, it can be controlled by adjusting the rotation speed of the driving motor 12;

[0100] The hydraulic pressure in the transmission pipe 31 is increased by the hydraulic unit 16, and the hydraulic block 33 is pushed by the hydraulic pressure in the hydraulic disc 32, so that the hydraulic block 33 pushes the push plate 34 to move. When the push plate 34 moves, it will contact and push the pressing block 36 to move downward, so that the bottom of the pressing block 36 contacts the bottom of the adjustment hole, and pushes the rotating disc 24 to move downward. At the same time, the pressing block 36 is pushed to compress the second spring 37. At this time, the second spring 37 is not fully compressed. When the rotating disc 24 moves downward, it will increase the pressure of the grinding disc 25 on the roof surface, thereby making the grinding disc 25 completely contact with the roof surface, and can perform grinding normally. At this time, the hydraulic unit 16 only outputs a small hydraulic pressure, and it is only necessary to ensure that the grinding disc 25 is in contact with the roof surface; when the angle of the roof surface changes, the roof surface will squeeze the grinding disc 25 and the rotating disc 24 to move upward, and the pressing block 36 pushes the push plate 34 so that the hydraulic block 33 can be pushed into the hydraulic disc 32, so that the angles of the rotating disc 24 and the grinding disc 25 are adaptive and fit the angle of the roof surface;

[0101] When the angle of the roof surface is matched and adjusted through the angle adjustment mechanism 4, the rotating disk 24 will push the pressure block 36 to move upward when it is lifted up, and at the same time push the push plate 34 to move the hydraulic block 33 into the hydraulic disk 32 so that it has space to be lifted. At this time, the hydraulic unit 16 can use less hydraulic pressure to enable the pressure adjustment mechanism 3 to push the rotating disk 24 to move downward.

[0102] Secondly, when encountering a larger protruding foreign object, the protruding foreign object contacts the rubber dust cover 26 during the movement, causing it to be squeezed and deformed. When the air inside the rubber dust cover 26 is pushed, it will push the piston rod 43 to move. When the piston rod 43 is pushed, it will push the follower block 42 and the traction block 41 to move upward, and the traction block 41 will pull the rotating disk 24 to pull it up. The rotating disk 24 will be lifted up, and after the foreign object enters, the thrust on the rubber dust cover 26 will be lost, so that the rotating disk 24 will fall down, and after the protruding foreign object enters, it will be polished flat by the rotating disk 24, so as to avoid the grinding disc 25 directly hitting the foreign object and causing damage when the equipment is moving; because the rubber dust cover 26 falls down due to the loss of the force of the foreign object, the rubber dust cover 26 has been restored to its original state when the rotating disk 24 is polishing the foreign object. At this time, the splash generated by the grinding of the foreign object will be blocked by the rubber dust cover 26, so as to avoid the splash of foreign objects and prevent the personnel in front of the equipment from being injured by the splashing foreign objects;

[0103] When encountering a roof surface with a larger angle, the roof surface will squeeze the rubber dust cover 26 and push the air through the air inside the rubber dust cover 26, so that the traction block 41 moves upward. At this time, the rubber dust cover 26 will adapt to the angle of the roof surface, thereby reducing the splashing of dust.

[0104] Then, when encountering an uneven roof surface or grinding a protrusion, the hydraulic pressure of the hydraulic unit 16 can be increased, so that the pressing block 36 continues to apply pressure to push the rotating disk 24 downward. At this time, the contact pressure between the grinding disc 25 and the roof surface increases. At the same time, the increase in the contact pressure between the grinding disc 25 and the roof surface will increase the efficiency and effect of grinding, thereby grinding uneven or protruding roof surfaces; when the contact pressure between the grinding disc 25 and the roof surface increases, the rotation speed of the rotating disk 24 will be slowed down, thereby facilitating observation and reducing the splashing of dust. If it is necessary to increase the grinding efficiency, it is only necessary to increase the power of the driving motor 12;

[0105] When the drive motor 12 is added, the equipment will run at a high speed. At this time, the grinding position of the equipment will be offset due to the influence of centrifugal force and inertia. When the grinding disc 25 increases the pressure between it and the roof surface, the roof surface can be completely contacted with the grinding disc 25. At this time, grinding can prevent the equipment from shifting by the pressure between it and the roof surface, and can avoid shifting during grinding, so as to prevent the positions that do not need to be polished or have been polished from being polished, and to avoid large changes in the angle of the roof surface due to excessive polishing or potholes caused by local grinding. In case of emergency situations such as about to hit the wall, the rotating disk 24 and the grinding disc 25 can be pressed down to quickly decelerate the equipment, so that the equipment can be stopped in time to prevent accidents.

[0106] At the same time, since the end of the partition plate 45 away from the piston rod 43 is in a free state, when the foreign matter contacts the rubber dust cover 26 and pushes the air inside the rod, the partition plate 45 will be offset to the side away from the foreign matter, so that even the space not in contact with the foreign matter will push the internal air, thereby lifting the rotating disk 24, thereby preventing the other side of the rotating disk 24 from contacting the roof surface after one side of the rotating disk 24 is lifted, thereby preventing the occurrence of excessive grinding;

[0107] When the contact surface of the foreign matter is at the same position as the partition plate 45, the partition plate 45 will be pushed to move to either side, and the air inside the rubber dust cover 26 will be pushed by the movement of the partition plate 45, so that the rotating disk 24 and the grinding plate 25 can be lifted over a larger area. At the same time, when encountering a wider protrusion, the rotating disk 24 and the grinding plate 25 can be lifted over a larger area and grinding can also be performed.

[0108] Finally, by sucking out the dust at the center of the grinding mechanism 2, it can be ensured that the suction force at all locations on the bottom surface of the grinding mechanism 2 is uniform, thereby avoiding the inability to suck in dust due to uneven suction force. When the dust in the dust discharge slot gathers at the center of the rotating disk 24, the dust can be sucked out through the dust suction pipe 14 by the suction force of the air pump 13, and the dust is sucked to the collection filter 19 through the dust suction pipe 14 for collection; thereby, the impact of dust on the rubber dust cover 26 can be reduced, thereby increasing the service life;

[0109] After grinding is completed, the hydraulic pressure of the transfer pipe 31 and the hydraulic disc 32 is reduced by the hydraulic unit 16, and the push plate 34 is pulled upward under the action of the first spring 35, thereby resetting the push plate 34 and the pressing block 36.

[0110] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A process for multiple surface grinding of industrial building roof structure slope, characterized by: The process includes the following steps: S1. Preparation work, cleaning and measuring the roof pouring part, ensuring the pouring thickness, building the pouring formwork, and fixing the steel bars in the formwork to complete the preparation work; S2. Surface grinding: pour concrete into the formwork first, use a leveler to initially level and compact the unsolidified concrete for rough grinding, then use a leveler to level and compact the surface for fine grinding, and level and compact the surface again before the concrete is completely solidified. Repeated leveling and grinding cycles will make the density of the roof floor concrete reach the best state, thereby increasing the anti-seepage and anti-leakage performance; S3. Drainage treatment: after the concrete solidifies, use grinding equipment to grind the solidified concrete and grind out an inclined surface on the concrete to facilitate drainage and sewage discharge; The grinding device comprises a main body shell (1) and a grinding unit (5); one side of the main body shell (1) is fixedly connected to the grinding unit (5); handles (15) are fixedly connected to both sides of the main body shell (1) near the top; one side of the main body shell (1) is fixedly connected to a hydraulic unit (16); the hydraulic unit (16) is connected to the grinding unit (5) through a hydraulic pipe; a moving wheel is arranged at the bottom of a side of the main body shell (1) near the grinding unit (5); a limiting support foot (18) is arranged at the bottom of a side of the main body shell (1) away from the grinding unit (5); and a cover plate is arranged at a side of the main body shell (1) away from the grinding unit (5); The grinding unit (5) comprises a supporting shell (11), a grinding mechanism (2) and a driving unit (7); the driving unit (7) is located at the top of the supporting shell (11), and the driving unit (7) is used to drive the grinding mechanism (2) to perform rotational grinding; the grinding mechanism (2) is located below the supporting shell (11), and the grinding mechanism (2) is fixedly connected to the driving unit (7); The grinding mechanism (2) comprises a support plate (23), the support plate (23) is fixedly connected to the drive unit (7), a rubber dust cover (26) is fixedly connected to the bottom of the support plate (23), a grinding disc (8) is slidably connected inside the rubber dust cover (26), and an angle adjustment mechanism (4) is fixedly connected to the top of the grinding disc (8); The angle adjustment mechanism (4) comprises a traction block (41), one end of which is fixedly connected to the grinding disc (8), and the other end of which passes through the support plate (23) and is fixedly connected to the follower block (42); a piston rod (43) is fixedly connected to the bottom of one end of the follower block (42) away from the traction block (41), the piston rod (43) passes through the support plate (23) and the rubber dust cover (26), and the piston rod (43) is slidably connected to the support plate (23) and the rubber dust cover (26).

2. The process for multiple surface grinding of industrial building roof structure slope according to claim 1, characterized in that: The drive unit (7) comprises a drive motor (12), the drive motor (12) being fixedly connected to the main housing (1); a cavity is provided inside the support housing (11); an output shaft of the drive motor (12) passes through the support housing (11) and extends to the bottom surface of the cavity; a first gear (21) is fixedly connected to the bottom of the output shaft; the first gear (21) meshes with a second gear (22); the second gear (22) is located at the center of the support housing (11), and a hollow shaft is fixedly connected to the bottom of the second gear (22); the hollow shaft passes through the bottom of the support housing (11) and is fixedly connected to the support plate (23).

3. The process for multiple surface grinding of the slope of an industrial building roof structure according to claim 1, characterized in that: The grinding disc (8) comprises a rotating disc (24), the top of which is fixedly connected to a traction block (41), and a plurality of grinding discs (25) are installed in a circular array on the bottom of the rotating disc (24); the grinding discs (25) are fan-shaped, and the corners of the bottom of the grinding discs (25) are chamfered and bent in the opposite direction of rotation, and the gaps between adjacent grinding discs (25) form dust discharge grooves, which are used to collect dust.

4. The process for multiple surface grinding of the slope of an industrial building roof structure according to claim 1, characterized in that: The rubber dust cover (26) is made of wear-resistant material, the side of the rubber dust cover (26) in contact with the rotating disk (24) is made of metal material, and the part of the piston rod (43) that moves inside the rubber dust cover (26) is made of metal material.

5. The process for multiple slope grinding of industrial building roof structure according to claim 1, characterized in that: The grinding device further comprises a dust suction unit (6), the dust suction unit (6) comprising an air pump (13), a dust suction pipe (14) and a collection filter (19), the air pump (13) being located at the top of the main shell (1) and being connected to the inside of the main shell (1); one end of the dust suction pipe (14) being fixed to one side of the main shell (1) and being connected to the main shell (1), the other end of the dust suction pipe (14) passing through the center of the support plate (23) and the rotating disk (24) and the bottom surface being flush with the bottom surface of the rotating disk (24), the portion of the dust suction pipe (14) located below the support shell (11) being made of a flexible material; the collection filter (19) being located inside the main shell (1) and being snap-connected to the main shell (1), the collection filter (19) being connected to the dust suction pipe (14), and the collection filter (19) being used to store dust generated by grinding.

6. The process for multiple surface grinding of industrial building roof structure slope according to claim 3, characterized in that: The grinding unit (5) further comprises a pressure regulating mechanism (3), wherein the pressure regulating mechanism (3) is connected to a hydraulic pipe, and the pressure regulating mechanism (3) comprises a transmission pipe (31) and a hydraulic disc (32), wherein the transmission pipe (31) penetrates the supporting shell (11); the hydraulic disc (32) is fixedly connected to the bottom of the supporting shell (11), and the hydraulic disc (32) and the hydraulic pipe are communicated through the transmission pipe (31); the hydraulic disc (32) is sleeved on the outer wall of the hollow shaft, and a plurality of groups of hydraulic holes are provided in an annular array at the bottom of the hydraulic disc (32), and a hydraulic block (33) is slidably connected in the hydraulic hole; a push plate (34) is fixedly connected to the bottom of the hydraulic block (33) ); the push plate (34) is sleeved on the outer wall of the hollow shaft, and a first spring (35) is fixedly connected between the push plate (34) and the hydraulic disc (32); a ring array of pressing holes is provided on the surface of the support plate (23), and a pressing block (36) is slidably connected in the pressing holes; the bottom of the push plate (34) is in contact with the pressing block (36); an adjustment hole is provided on the top surface of the rotating disc (24), and the adjustment hole is slidably connected to the outer wall of the bottom of the pressing block (36); a spring baffle is provided on the top of the pressing block (36), and a second spring (37) is fixedly connected between the spring baffle and the support plate (23), and the second spring (37) is used to reset the pressing block (36).

7. The process for multiple slope grinding of industrial building roof structure according to claim 1, characterized in that: A partition plate (45) is slidably connected between adjacent piston rods (43); the partition plate (45) evenly divides the interior of the rubber dust cover (26) into a plurality of spaces, and one end of the partition plate (45) away from the piston rod (43) is in a free state, and the partition plate (45) is used to support the rubber dust cover (26).

8. The process for multiple surface grinding of the slope of an industrial building roof structure according to claim 1, characterized in that: A fixed block (151) is symmetrically fixedly connected to one side of the handle (15) close to the main housing (1), and a pressing rod (152) is hingedly connected to the opposite side of the fixed block (151); a steel wire (153) is fixedly connected to one side of the pressing rod (152) close to the fixed block (151); the steel wire (153) passes through the fixed block (151) and the handle (15), and one end away from the pressing rod (152) is fixedly connected to a hydraulic connecting rod (161); one end of the hydraulic connecting rod (161) away from the steel wire (153) is fixedly connected to a pushing block and is slidably connected to the inner wall of the hydraulic unit (16), the pushing block is used to generate hydraulic pressure for the hydraulic unit (16), and the middle part of the hydraulic connecting rod (161) is rotatably connected to a rotating rod; the rotating rod is fixedly connected to the outer wall of the main housing (1).

9. The process for multiple surface grinding of industrial building roof structure slope according to claim 1, characterized in that: Two thirds of the inner space of the rubber dust cover (26) is filled with expanded perlite, and one third of the inner space of the rubber dust cover (26) is used for the movement of the piston rod (43).

10. The process for multiple surface grinding of industrial building roof structure slope according to claim 1, characterized in that: A status monitoring screen is provided at the top of one side of the main housing (1) close to the handle (15), and the status monitoring screen is used to monitor the status of the grinding mechanism (2) and the pressure regulating mechanism (3); a level is provided inside the grinding mechanism (2).

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