Grinding device for concrete terrace

Abstract

The utility model discloses a grinding device for a concrete floor, which belongs to the technical field of grinding machines and comprises a vehicle body, a grinding mechanism is arranged at the bottom of the front end of the vehicle body, pipeline fans are symmetrically arranged at the top of the vehicle body, and the pipeline fans are connected with the grinding mechanism through pipelines. The other end of the pipeline fan is connected with a dust removal mechanism through a hose; the dust removal mechanism comprises a first-stage dust removal mechanism positioned at the bottom and a second-stage dust removal mechanism positioned at the upper part of the first-stage dust removal mechanism; a handle used for pushing the trolley is arranged at the rear end of the trolley body, and balance mechanisms are arranged at the positions, located on the two sides of the grinding mechanism, of the bottom of the trolley body. According to the grinding device for the concrete terrace, in the grinding process, the dust hood adsorbs dust at the grinding position through negative pressure, and the dust enters the dust removal mechanism through the pipeline fan to be subjected to primary dust removal and secondary dust removal, so that the dust removal efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a grinding machine technical field especially relates to a kind of grinding devices for concrete ground. BACKGROUND

[0002] Grinding device for concrete ground is indispensable equipment in ground processing, mainly for: preparing ground: removing old coating, oil stain, floating pulp, loose layer, opening concrete pore. Leveling ground: removing ground high point, leveling slight unevenness. Roughening ground: providing good adhesion for subsequent coating (epoxy, polyurethane etc.). Polishing ground: through multiple fine grinding, ground reaches high light effect (usually cooperates concrete sealing curing agent). Renovating ground: repairing wear and tear, scratch, stain etc. of old terrace. Exposing aggregate: grinding off surface cement paste, exposing decorative aggregate (pea stone terrace).

[0003] In addition to power source, grinding head, walking system and control system, dust removal system is also important component for key component of grinding device for concrete ground, grinding produces a large amount of harmful dust, dust removal is the core link of guaranteeing operation safety, personnel health, equipment stability and environmental compliance. Current dust removal system is mainly divided into:

[0004] Dry grinding: generally adopts integrated or external high-efficiency dust removal, wherein, the dust removal efficiency of integrated type is low, external type is inconvenient to operate, and cost is high.

[0005] Wet grinding: dust is inhibited by water spraying, but mud is generated, needs to be cleaned in time, and now large project is less used (low efficiency, subsequent processing is troublesome).

[0006] Based on this, the utility model provides a kind of grinding device for concrete ground, and the dust removal of grinding device is realized by integrated multi-stage dust removal. UTILITY MODEL CONTENT

[0007] The utility model aims at providing a kind of grinding device for concrete ground, solves the above-mentioned problems.

[0008] To solve the above technical problem, the utility model adopts the following technical scheme:

[0009] The utility model discloses a kind of grinding device for concrete ground, including car body, grinding mechanism is provided on the bottom position of the front end of the car body, the top of the car body is symmetrically provided with duct fan, the duct fan is connected with the grinding mechanism by pipeline;Another end of the duct fan is connected with dust removal mechanism by hose, the dust removal mechanism includes the first-stage dust removal mechanism in bottom and the second-stage dust removal mechanism in the upper portion of the first-stage dust removal mechanism;The rear end of the car body is provided with handle for pushing the car, the bottom of the car body is provided with balancing mechanism on the both sides position of the grinding mechanism.

[0010] Further, the primary dust removal mechanism comprises a large cone body symmetrically distributed inside the dust removal mechanism, an air inlet one is arranged on the upper side wall of the large cone body and communicated with the hose, and a dust outlet is arranged on the bottom of the large cone body; an air outlet one is arranged on the top of the large cone body, a connecting pipe is arranged on the top of the air outlet one, and the connecting pipe is communicated with the secondary dust removal mechanism.

[0011] Further, the secondary dust removal mechanism comprises a central cylinder located at the center, a plurality of air inlets two are circumferentially arranged on the top side wall of the central cylinder, a small cone body is communicated with the other end of the air inlet two, a dust hopper is arranged on the bottom of the small cone body, an air outlet two is arranged on the top of the small cone body, an air outlet three is communicated with the air outlet two and located at the center, and the air outlet three is integrally formed with the central cylinder; a plurality of small cone bodies are circumferentially distributed around the outer periphery of the central cylinder.

[0012] Further, the grinding mechanism comprises a grinding area and a dust suction area located outside the grinding area, a downwardly extending dust suction cover is arranged on the outer side wall of the dust suction area; the grinding area comprises a central intermediate grinding disc and a plurality of satellite discs distributed around the outer periphery of the intermediate grinding disc, and the intermediate grinding disc and the satellite discs are driven to rotate by a planetary gear train.

[0013] Further, the planetary gear train comprises a sun gear fixedly connected with the intermediate grinding disc, a plurality of planetary gears fixedly connected with the satellite discs are meshed with the outer periphery of the sun gear, and an outer steel ring is meshed with the outer periphery of the planetary gears; the sun gear is connected with a driving mechanism.

[0014] Further, the driving mechanism comprises a driving shaft fixedly connected with the sun gear, the upper end of the driving shaft is connected with a motor one through a chain wheel transmission mechanism, and the motor one is arranged on the upper end surface of the vehicle body.

[0015] Further, the pipeline fan comprises a cylinder body, a rotating disc is arranged at the central position inside the cylinder body, a plurality of fan blades are circumferentially arranged on the outer side wall of the rotating disc, and the rotating disc is connected with a motor two through a transmission mechanism after penetrating out of the cylinder body.

[0016] Further, the transmission mechanism comprises a vertical shaft fixedly connected with the motor two, a bevel gear one is connected with the other end of the vertical shaft, a bevel gear two is meshed with the bevel gear one, a horizontal shaft is fixedly connected with the bevel gear two, and the other end of the horizontal shaft is fixedly connected with the rotating disc.

[0017] Further, the balancing mechanism comprises symmetrically distributed balancing wheels arranged on mounting frames, balance bars are arranged between the mounting frames, and the balance bars are in contact with the pressing blocks on the upper end surfaces of the central positions of the balance bars; the tail portions of the mounting frames are hingedly connected with hinged rods, the other ends of the hinged rods are connected with body connecting blocks, the body connecting blocks are fixedly connected with the vehicle body, and the body connecting blocks are connected together through cross rods.

[0018] Compared with the prior art, the balancing mechanism comprises symmetrically distributed balancing wheels arranged on mounting frames, balance bars are arranged between the mounting frames, and the balance bars are in contact with the pressing blocks on the upper end surfaces of the central positions of the balance bars; the tail portions of the mounting frames are hingedly connected with hinged rods, the other ends of the hinged rods are connected with body connecting blocks, the body connecting blocks are fixedly connected with the vehicle body, and the body connecting blocks are connected together through cross rods.

[0019] The dust cover adsorbs dust under negative pressure at the grinding position in the grinding process, and one-stage dust removal and two-stage dust removal are achieved in the dust removal mechanism through the pipeline fan, so that the dust removal efficiency is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further described below in combination with the drawings.

[0021] Figure 1 It is a structure schematic view of the concrete floor grinding device of the utility model;

[0022] Figure 2 It is a bottom view of the grinding mechanism;

[0023] Figure 3 It is a planetary gear train structure schematic view;

[0024] Figure 4 It is a structure schematic view of the balancing mechanism;

[0025] Figure 5 It is a bottom view of the pipeline fan;

[0026] Figure 6 It is a structure schematic view of the transmission mechanism;

[0027] Figure 7 It is a main view of the internal structure of the dust removal mechanism;

[0028] Figure 8 It is a sectional view of the two-stage dust removal mechanism;

[0029] Reference signs: 1, vehicle body; 2, grinding mechanism; 3, balancing mechanism; 4, pipeline fan; 5, hose; 6, dust removal mechanism; 7, handle; 8, motor one; 9, chain wheel transmission mechanism;

[0030] 201, grinding area; 202, dust cover; 203, dust suction area; 204, intermediate grinding disc; 205, satellite disc; 206, sun wheel; 207, planetary gear; 208, drive shaft; 209, outer steel ring;

[0031] 301, balancing wheel; 302, mounting frame; 303, balancing rod; 304, pressing block; 305, hinged rod; 306, body connecting block; 307, cross bar;

[0032] 401, cylinder; 402, fan blades; 403, transmission mechanism; 404, motor 2; 405, vertical shaft; 406, bevel gear 1; 407, bevel gear 2; 408, horizontal shaft;

[0033] 601. Large cone; 602. Air inlet 1; 603. Dust outlet; 604. Air outlet 1; 605. Connecting pipe; 606. Ash hopper; 607. Small cone; 608. Air outlet 2; 609. Air outlet 3; 610. Air inlet 2. DETAILED DESCRIPTION

[0034] like Figures 1-8 As shown, a grinding device for concrete floors includes a vehicle body 1, with a grinding mechanism 2 mounted at the bottom of the front end of the vehicle body 1. Duct fans 4 are symmetrically mounted on the top of the vehicle body 1. The duct fans 4 are connected to the grinding mechanism 2 via a pipeline. When the duct fans 4 are activated, the negative pressure generated absorbs dust from the bottom. The other end of the duct fan 4 is connected to a dust removal mechanism 6 via a hose 5. The dust removal mechanism 6 includes a primary dust removal mechanism located at the bottom and a secondary dust removal mechanism located above the primary dust removal mechanism. A handle 7 for pushing the vehicle is mounted at the rear end of the vehicle body 1, and balancing mechanisms 3 are mounted on the bottom of the vehicle body 1 on both sides of the grinding mechanism 2.

[0035] like Figure 7 As shown, the primary dust removal mechanism includes a large cone 601 symmetrically distributed within the dust removal mechanism 6. An air inlet 602 connected to the hose 5 is installed on the upper sidewall of the large cone 601, and a dust outlet 603 is installed at the bottom of the large cone 601. An air outlet 604 is installed at the top of the large cone 601. A connecting pipe 605 is installed at the top of the air outlet 604. The top of the connecting pipe 605 is connected to the secondary dust removal mechanism. Dust-containing air enters the large cone 601 from the air inlet 602 for cyclonic separation. The separated dust falls from the dust outlet 603 to the bottom of the dust removal mechanism 6 below. The clean air enters the connecting pipe 605 from the air outlet 604 and enters the secondary dust removal mechanism from the connecting pipe 605 for further dust removal.

[0036] like Figure 8As shown, the secondary dust removal mechanism includes a central cylinder located in the center position, which is connected with the connecting pipe 605, and a plurality of air inlets two 610 are circumferentially arranged on the top side wall of the central cylinder, and the other end of the air inlets two 610 is communicated with a small cone 607. The bottom of the small cone 607 is provided with a dust hopper 606, and the top of the small cone 607 is provided with an air outlet two 608, which is communicated with an air outlet three 609 located in the center position, and the air outlet three 609 is an integral molding structure with the central cylinder. A plurality of small cones 607 are circumferentially distributed around the outer periphery of the central cylinder. The air after primary dust removal enters the small cone 607 from the air inlets two 610 of the central cylinder to perform cyclone separation operation again, the separated dust falls into the dust hopper 606 below, and the clean air enters the air outlet three 609 from the air outlet two 608, and finally is discharged into the air from the air outlet three 609.

[0037] As shown in Figure 2 As shown, the grinding mechanism 2 includes a grinding area 201 and a dust collection area 203 located outside the grinding area 201, and a downwardly extending dust collection cover 202 is mounted on the outer side wall of the dust collection area 203, which forms a closed space with the grinding area 201 and the dust collection area 203. Under the action of negative pressure, the dust generated during the grinding process is sucked away from the dust collection area 203. A protective net is arranged on the dust collection area 203 to prevent larger impurities from entering the pipeline fan 4 and damaging the fan and affecting its normal operation.

[0038] As shown in Figure 3 As shown, the grinding area 201 includes an intermediate grinding disc 204 located in the center position and a satellite disc 205 distributed around the outer periphery of the intermediate grinding disc 204, and the intermediate grinding disc 204 and the satellite disc 205 are driven to rotate by a planetary gear train. The planetary gear train includes a sun gear 206 fixedly connected with the intermediate grinding disc 204, a plurality of planetary gears 207 fixedly connected with the satellite disc 205 are meshed with the outer periphery of the sun gear 206, and an outer steel ring 209 is meshed with the outer periphery of the planetary gears 207. The sun gear 206 is connected with a driving mechanism. By driving the planetary gear train to rotate through the driving mechanism, the intermediate grinding disc 204 and the satellite disc 205 rotate around their own axes, and the satellite disc 205 also revolves around the intermediate grinding disc 204, thereby improving the efficiency of grinding.

[0039] The driving mechanism includes a driving shaft 208 fixedly connected with the sun gear 206, and the upper end of the driving shaft 208 is connected with a motor one 8 through a chain wheel transmission mechanism 9, and the motor one 8 is mounted on the upper end face of the vehicle body 1.

[0040] As shown in Figure 5As shown in the pipeline fan 4 includes the barrel 401, the barrel 401 inside the center position is installed with the rotating disc, the outer side wall of the rotating disc is circumferentially distributed with a plurality of fan blades 402, the rotating disc passes through the transmission mechanism 403 and is connected with motor two 404 after the barrel 401. Motor two 404 starts, and the fan blade 402 is rotated through the transmission mechanism 403, and the negative pressure is generated in the rotation process, and the dust is transported along the negative pressure wind direction.

[0041] As shown in the pipeline fan 4 includes the barrel 401, the barrel 401 inside the center position is installed with the rotating disc, the outer side wall of the rotating disc is circumferentially distributed with a plurality of fan blades 402, the rotating disc passes through the transmission mechanism 403 and is connected with motor two 404 after the barrel 401. Motor two 404 starts, and the fan blade 402 is rotated through the transmission mechanism 403, and the negative pressure is generated in the rotation process, and the dust is transported along the negative pressure wind direction. Figure 6 As shown in the pipeline fan 4 includes the barrel 401, the barrel 401 inside the center position is installed with the rotating disc, the outer side wall of the rotating disc is circumferentially distributed with a plurality of fan blades 402, the rotating disc passes through the transmission mechanism 403 and is connected with motor two 404 after the barrel 401. Motor two 404 starts, and the fan blade 402 is rotated through the transmission mechanism 403, and the negative pressure is generated in the rotation process, and the dust is transported along the negative pressure wind direction.

[0042] As shown in the pipeline fan 4 includes the barrel 401, the barrel 401 inside the center position is installed with the rotating disc, the outer side wall of the rotating disc is circumferentially distributed with a plurality of fan blades 402, the rotating disc passes through the transmission mechanism 403 and is connected with motor two 404 after the barrel 401. Motor two 404 starts, and the fan blade 402 is rotated through the transmission mechanism 403, and the negative pressure is generated in the rotation process, and the dust is transported along the negative pressure wind direction. Figure 4 The balance mechanism 3 includes the balance wheel 301 that is symmetrically distributed, the balance wheel 301 is installed on the mounting frame 302, the balance rod 303 is installed between the mounting frame 302, the balance rod 303 is in contact with the pressing block 304 on the center position end face, the tail of the mounting frame 302 is hingedly connected with the articulated rod 305, the other end of the articulated rod 305 is connected with the body connecting block 306, the body connecting block 306 is fixedly connected with the vehicle body 1, and the body connecting block 306 is connected together through the cross rod 307. The balance rod 303 is balanced left and right balance wheel 301 through lever linkage, so that the rising displacement of one side balance wheel 301 is offset by the descending part of the other side balance wheel 301, the probability of single side tire suspension is reduced, the ground adhesion is improved, and the stability in the driving process is improved through the elastic deformation of the rod piece buffer impact force.

[0043] The action process of the utility model is as follows:

[0044] First, start the pipeline fan 4, then start motor one 8, the grinding mechanism 2 starts to run, and the concrete pavement is ground; finally, the dust generated in the grinding process is under the action of the pipeline fan 4 and enters the dust removal mechanism 6 to carry out primary dust removal and secondary dust removal, the dust is collected, and the clean air is discharged into the atmosphere.

[0045] The above-described embodiments are only preferred modes of the utility model, and do not limit the scope of the utility model, and various deformations and improvements of the technical scheme of the utility model made by those skilled in the art without departing from the design spirit of the utility model should fall within the protection scope determined by the claims of the utility model.

Claims

1. A grinding device for concrete floor, characterized by: The invention comprises a vehicle body (1), a grinding mechanism (2) is provided at the bottom of the front end of the vehicle body (1), a duct fan (4) is symmetrically provided on the top of the vehicle body (1), and the duct fan (4) is connected to the grinding mechanism (2) through a pipeline; the other end of the duct fan (4) is connected to a dust removal mechanism (6) through a hose (5), and the dust removal mechanism (6) includes a primary dust removal mechanism located at the bottom and a secondary dust removal mechanism located above the primary dust removal mechanism; a handle (7) for pushing the vehicle is provided at the rear end of the vehicle body (1), and a balancing mechanism (3) is provided at the bottom of the vehicle body (1) at positions on both sides of the grinding mechanism (2).

2. The concrete floor grinding device according to claim 1, characterized in that: The primary dust removal mechanism comprises a large cone (601) symmetrically distributed inside the dust removal mechanism (6); an air inlet (602) communicating with the hose (5) is respectively provided on the upper side wall of the large cone (601); a dust outlet (603) is provided at the bottom of the large cone (601); an air outlet (604) is provided at the top of the large cone (601); a connecting pipe (605) is provided at the top of the air outlet (604); and the top of the connecting pipe (605) is communicated with the secondary dust removal mechanism.

3. The concrete floor grinding device according to claim 1, characterized in that: The secondary dust removal mechanism includes a central tube located at the center, a plurality of air inlet 2 (610) is opened on the circumference of the top side wall of the central tube, the other end of the air inlet 2 (610) is connected to the small cone (607), the bottom of the small cone (607) is provided with an ash hopper (606), the top of the small cone (607) is provided with an air outlet 2 (608), the air outlet 2 (608) is connected to the air outlet 3 (609) located at the center, and the air outlet 3 (609) and the central tube are an integrally formed structure; a plurality of the small cones (607) are distributed circumferentially around the outer periphery of the central tube.

4. The concrete floor grinding device according to claim 1, characterized in that: The grinding mechanism (2) comprises a grinding area (201) and a dust collection area (203) located outside the grinding area (201), wherein a dust collection cover (202) extending downward is provided on the outer wall of the dust collection area (203); the grinding area (201) comprises a central grinding disc (204) and satellite discs (205) distributed around the central grinding disc (204); the central grinding disc (204) and the satellite discs (205) are driven to rotate by a planetary gear train.

5. The concrete floor grinding device according to claim 4, characterized in that: The planetary gear train comprises a sun gear (206) fixedly connected to the intermediate grinding disc (204); a plurality of planetary gears (207) fixedly connected to the satellite discs (205) are meshed on the outer periphery of the sun gear (206); an outer steel ring (209) is meshed on the outer periphery of the planetary gears (207); and the sun gear (206) is connected to a driving mechanism.

6. The concrete floor grinding device according to claim 5, characterized in that: The driving mechanism includes a driving shaft (208) fixedly connected to the sun gear (206), the upper end of the driving shaft (208) is connected to a motor 1 (8) via a sprocket transmission mechanism (9), and the motor 1 (8) is arranged on the upper end surface of the vehicle body (1).

7. The concrete floor grinding device according to claim 1, characterized in that: The duct fan (4) comprises a cylinder (401), a rotating disk is provided at the center of the cylinder (401), a plurality of fan blades (402) are distributed circumferentially on the outer wall of the rotating disk, and the rotating disk passes through the cylinder (401) through a transmission mechanism (403) and is connected to a second motor (404).

8. The concrete floor grinding device according to claim 7, characterized in that: The transmission mechanism (403) includes a vertical shaft (405) fixedly connected to the second motor (404), the other end of the vertical shaft (405) is connected to the first bevel gear (406), the first bevel gear (406) is meshed with the second bevel gear (407), the second bevel gear (407) is fixedly connected to the horizontal shaft (408), and the other end of the horizontal shaft (408) is fixedly connected to the rotating disk.

9. The concrete floor grinding device according to claim 1, characterized in that: The balancing mechanism (3) comprises symmetrically distributed balancing wheels (301), the balancing wheels (301) being arranged on a mounting frame (302), a balancing rod (303) being arranged between the mounting frames (302), and a pressure block (304) being contacted and connected to the upper end surface of the center position of the balancing rod (303); the tail of the mounting frame (302) being hingedly connected to a hinge rod (305), the other end of the hinge rod (305) being connected to a body connecting block (306), and the body connecting block (306) being fixedly connected to the vehicle body (1); and the body connecting blocks (306) being connected together via a cross bar (307).

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