Stepping grinder

Abstract

The stepping grinding machine comprises a vehicle body, a grinding mechanism, a driving mechanism, a control box and a remote controller, the grinding mechanism is arranged at the position of a machine head of the vehicle body, the driving mechanism is arranged below the vehicle body, the control box is installed on the vehicle body and electrically connected with the grinding mechanism and the driving mechanism, and the control box is in communication connection with the remote controller; the grinding mechanism comprises a gear box and at least two grinding discs, and the gear box is connected with the at least two grinding discs; the driving mechanism comprises a left driving wheel and a right driving wheel; and the vehicle body is controlled by the remote controller to advance according to an S-shaped route for grinding. According to the multi-millstone grinding machine, the problem that the grinding space between two overlapped grinding gear boxes of the multi-millstone grinding machine is different in depth under the condition that the ground is uneven can be effectively solved, the single-time grinding area is increased, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, and particularly relates to a stepping grinder. Background Art

[0002] Floor grinders are mainly used for grinding treatment of the ground. It can effectively grind terrazzo, concrete surface layer, epoxy mortar layer and old epoxy floor, etc., making the concrete surface smooth and flat to meet the roughness requirements and flatness requirements, making the horizontal error of the concrete surface meet the technical requirements, and having the characteristics of being portable, flexible and high work efficiency.

[0003] When a double-disc or multi-disc grinder works, the grinder moves linearly on the ground. However, a part of the rotation area of the abrasive discs on the discs will overlap. When the ground is uneven, the grinding distance of the two superimposed discs will be uneven, affecting the grinding effect. Content of the Utility Model

[0004] Purpose of the utility model: In order to overcome the above deficiencies, the purpose of the utility model is to provide a stepping grinder, which has a simple structure and reasonable design, adopts a stepping curve grinding method, and avoids the phenomenon that the grinding distance of the two superimposed grinding gearboxes is uneven when the ground is uneven.

[0005] Technical solution: In order to achieve the above purpose, the utility model provides a stepping grinder, which includes a vehicle body, a grinding mechanism, a driving mechanism, a control box and a remote control. The grinding mechanism is arranged at the nose position of the vehicle body, the driving mechanism is arranged under the vehicle body, the control box is installed on the vehicle body and is electrically connected to the grinding mechanism and the driving mechanism, and the control box is communicatively connected to the remote control; the grinding mechanism includes a gearbox and abrasive discs, and the gearbox is connected to at least two abrasive discs; the driving mechanism includes a left driving wheel and a right driving wheel, and grinding motors with the same number as the abrasive discs are arranged on the gearbox; the left driving wheel and the right driving wheel are respectively equipped with a left driving motor and a right driving motor, and the remote control can control the vehicle body to move along an S-shaped line through the control box.

[0006] Specifically, a display screen, a direction joystick, and function buttons are provided on the remote controller. The function buttons include a walking speed adjustment knob, a grinding disc speed adjustment knob, an offset compensation knob, a grinding disc rotation direction key, a vehicle body walking state key, a grinding disc start / stop key, and a power switch provided on the board surface, and further include a step grinding switch and an emergency stop switch provided on the side. The display screen can display parameters such as the grinding disc speed, walking speed, walking angle parameter, signal channel, etc.; by toggling the direction joystick, the left and right movement and turning of the grinding machine can be controlled; by rotating the walking speed adjustment knob and the grinding disc speed adjustment knob, the running speed of the vehicle body and the rotation speed of the grinding disc can be adjusted respectively. When there is a small-angle slope with the ground, if there is a deviation in observing the walking direction of the grinding machine and the walking angle in the display screen, the walking direction of the grinding machine can be adjusted through the offset compensation knob; by pressing the step grinding switch, the vehicle body starts step grinding along a pre-set "S"-shaped route.

[0007] Specifically, the vehicle body walking state key is a three-position switch, and the vehicle body walking state key can control the vehicle body to move forward, backward or stop. The grinding disc rotation direction key, the grinding disc start / stop key, and the power switch are all two-position switches.

[0008] Specifically, a lighting lamp is further provided at the front end of the vehicle body. The lighting lamp is connected to the control box, and a lighting on / off key is provided on the remote controller. When it is night or the light is dim, the lighting on / off key can be pressed to turn on the lighting lamp at the front end of the vehicle body to provide good lighting.

[0009] Specifically, a spray water pump is provided below the vehicle body. The spray water pump is connected to the control box; a water pump switch is provided on the remote controller. By turning on the water pump switch, the spray water pump is started to reduce the grinding dust.

[0010] Specifically, a frequency modulation button is further provided on the remote controller. When in a multi-segment signal frequency working condition, the signal received and transmitted by the remote controller may be interfered. The signal can be switched and the receiving frequency can be changed through the frequency modulation button, and at the same time, the switching of the channel can be displayed on the display screen.

[0011] Specifically, a battery box is further provided on the vehicle body. A seat is provided on the battery box, armrests are provided on both sides of the seat, and an operation panel is provided on any one of the armrests; an adjustable-angle handrail mechanism is further provided at the rear end of the vehicle body.

[0012] Specifically, a guide wheel lifting mechanism is further included. The guide wheel lifting mechanism includes a lifting frame, a fixed frame, and a lifting driving device;

[0013] The lifting frame is a retractable quadrilateral structure. The lifting frame includes a hinge seat, a boom, and two groups of connecting rods. The two ends of the connecting rod are respectively hinged to the hinge seat and the boom, and universal wheels are installed on the boom;

[0014] The lifting driving device is an electric hydraulic rod, and the two ends of the electric hydraulic rod are respectively hinged to the diagonals of the lifting frame;

[0015] A plurality of pin holes are provided at corresponding positions on the fixing frame and the hinge seat. The position of the lifting frame can be changed by locking through the pin holes at different positions between the hinge seat and the fixing frame.

[0016] The electric drive hydraulic rod can share a set of power sources with the drive wheels. The lifting frame is connected to the vehicle body through the hinge seat and the fixing frame. By selecting and locking the corresponding pin holes on the hinge seat and the fixing frame, the guide wheel lifting frame can be retracted or extended, which not only effectively reduces the overall volume but also organically combines with the working mode of the grinding machine.

[0017] As can be seen from the above technical solutions of the utility model, the utility model has the following beneficial effects:

[0018] 1. The step grinding machine described in the utility model is provided with a remote control and an operation panel. Remote control can be realized through the remote control, and the control of the grinding machine can also be realized by sitting on the seat manually using the operation panel.

[0019] 2. The step grinding method disclosed in the utility model increases the single grinding area and improves the construction efficiency; the step grinding vehicle body walks in an "S" shape to avoid the phenomenon that the grinding spacing where two grinding gearboxes are superimposed is uneven on uneven ground, thus improving the construction quality.

[0020] 3. The guide wheel lifting mechanism added at the head part of the utility model can lift the head, and the whole grinding mechanism can be lifted off the ground with a relatively small downward pressure to facilitate the replacement of the grinding disc, improving the work efficiency; when the guide wheel lifting mechanism is lowered, the efficient migration of the grinding machine in the field can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the principle structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the step grinding machine in the utility model;

[0023] Figure 3 It is a bottom view of the step grinding machine in the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the remote control in the utility model;

[0025] Figure 5 It is a right view of the remote control in the utility model;

[0026] Figure 6 It is a left view of the remote control in the utility model;

[0027] Figure 7 It is a schematic diagram of the structure of the guide wheel lifting mechanism in the utility model;

[0028] Figure 8Schematic diagram of the trajectory of the vehicle body of the present utility model moving along an S-shaped line;

[0029] Figure 9 Schematic structural diagram of the hand-held mechanism in Embodiment 3;

[0030] Figure 10 Schematic structural diagram of the angle adjustment mechanism in Embodiment 3.

[0031] In the figure: 1 - electric control box, 2 - gear box, 3 - grinding disc, 4 - left driving wheel, 5 - right driving wheel, 6 - grinding motor, 7 - display screen, 8 - direction rocker, 9 - walking speed adjustment knob, 10 - grinding disc speed adjustment knob, 11 - offset compensation knob, 12 - grinding disc rotation direction key, 13 - vehicle body walking state key, 14 - grinding disc start / stop key, 15 - power switch, 16 - step grinding switch, 17 - emergency stop switch, 18 - lighting lamp, 19 - lighting on / off key, 20 - spray water pump, 21 - water pump switch, 22 - frequency modulation button, 23 - seat, 24 - operation panel, 25 - hand-held mechanism, 251 - swing arm, 2511 - toothed disc, 2512 - pull rod, 2513 - clamping shaft, 252 - control panel, 253 - handrail, 2531 - steering switch, 26 - guide wheel lifting mechanism, 261 - lifting frame, 2611 - hinge seat, 2612 - boom, 2613 - connecting rod, 262 - fixed frame, 263 - electric drive hydraulic rod. Specific embodiments

[0032] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0033] Embodiment 1:

[0034] In one embodiment, as Figure 1-6 shown: A step grinding machine includes a vehicle body, a grinding mechanism, a driving mechanism, a control box 1 and a remote control. The grinding mechanism is arranged at the head position of the vehicle body. The driving mechanism is arranged under the vehicle body. The control box is installed on the vehicle body and is electrically connected to the grinding mechanism and the driving mechanism. The control box is in communication connection with the remote control. The grinding mechanism includes a gear box 2 and a grinding disc 3. The gear box 2 is connected to at least two grinding discs 3. The driving mechanism includes a left driving wheel 4 and a right driving wheel 5. A grinding motor 6 with the same number as the grinding discs 3 is arranged on the gear box 2. The left driving wheel 4 and the right driving wheel 5 are respectively provided with a left driving motor and a right driving motor. The remote control can control the vehicle body to move along an S-shaped line through the control box 1.

[0035] An optional or preferred solution is that the remote control is provided with a display screen 7, a directional joystick 8 and function buttons, and the function buttons include a travel speed control knob 9, a grinding disc speed control knob 10, an offset compensation knob 11, a grinding disc rotation direction key 12, a vehicle travel status key 13, a grinding disc start and stop key 14, a power switch 15, and also include a step grinding switch 16 and an emergency stop switch 17 arranged on the side.

[0036] An optional or preferred solution is that the vehicle body travel status key 13 is a three-speed switch, which can control the vehicle body to move forward, backward or stop, and the grinding wheel rotation key 12, grinding wheel start and stop key 14, and power switch 15 are all two-speed switches.

[0037] Specifically, the operating steps of the remote control provided in this embodiment are: select the forward and reverse rotation of the grinding wheel 3 through the grinding wheel rotation direction key 12, turn on the power switch 15, turn on the emergency stop switch 17, press the grinding wheel start and stop button 14, adjust the grinding wheel speed required for the current working condition through the grinding wheel speed control knob 10, and select the forward or backward movement of the vehicle body through the vehicle body travel status key 13 to start grinding; control the vehicle body travel speed through the travel speed control knob 9 according to the current working condition, turn the direction rocker 8 to control the left and right steering of the vehicle body, and press the step grinding switch 16 to start step grinding; when encountering a small angle slope on the bottom surface, observe through the display screen 7 if the vehicle body deviates in direction, it can be controlled through the offset compensation knob 11, and the vehicle body rotates counterclockwise when it deviates to the right, and rotates clockwise when it deviates to the left.

[0038] As an optional or preferred solution, a lighting lamp 18 is further provided at the front end of the vehicle body, the lighting lamp 18 is connected to the control box 1, and a lighting switch 19 is provided on the remote controller.

[0039] Optionally or preferably, a spray water pump 20 is provided under the vehicle body, and the spray water pump 20 is connected to a control box; a water pump switch 21 is provided on the remote controller.

[0040] Optionally or preferably, the remote controller is further provided with a frequency modulation button 22. Specifically, when the remote controller is in a working condition of multiple signal frequencies, the signal received by the remote controller may be interfered, and long pressing the frequency modulation button 22 switches the signal to change the receiving frequency.

[0041] As an optional or preferred solution, a battery box is further provided on the vehicle body, a seat 23 is provided on the battery box, armrests are provided on both sides of the seat 23, and an operating panel 24 is provided on the armrest on either side; and an angle-adjustable handrail mechanism 25 is also provided at the rear end of the vehicle body.

[0042] In addition, if Figure 7 As shown, it also includes a guide wheel lifting mechanism 26, and the guide wheel lifting mechanism 26 includes a lifting frame 261, a fixing frame 262 and a lifting drive device;

[0043] The lifting frame 261 is a retractable quadrilateral structure, and includes an articulated seat 2611, an arm 2612, and two sets of connecting rods 2613. The two ends of the connecting rod 2613 are respectively articulated with the articulated seat 2611 and the arm 2612, and a universal wheel is installed on the arm 2612.

[0044] The lifting drive device is an electric-driven hydraulic rod 263, and the two ends of the electric-driven hydraulic rod 263 are respectively hinged at the opposite corners of the lifting frame 261;

[0045] A plurality of pin holes are arranged at corresponding positions on the fixing frame 262 and the hinge seat 2611 , and the position of the lifting frame 261 can be changed by locking the hinge seat 2611 and the fixing frame 262 with the pin holes at different positions.

[0046] The working process of a stepping grinder provided by the utility model is as follows: S1, reset check, a reset check is required when starting or stopping the machine, and the emergency stop switch of the remote control and the operation panel is checked to be in a pressed state;

[0047] S2, select the forward and reverse rotation of the grinding disc through the grinding disc rotation key 12, and turn on the power switch 15 and the emergency stop switch 17;

[0048] S3, according to the grinding disc speed required by the current working conditions, turn the grinding disc speed knob 10 to start the grinding disc, and turn the vehicle body travel state key 13 to select the vehicle body to move forward or backward to start grinding;

[0049] S4, press the step grinding switch 16, the vehicle body starts to move in an S-shaped route, that is, step grinding, and press the step grinding switch 16 again to cancel the step grinding and the vehicle body starts to move in a straight line.

[0050] like Figure 8 As shown, the specific method for the vehicle body to take the S-shaped route in step S4 is:

[0051] The horizontal position deviation of the first swing is: LL*cos(θ1), the distance the left wheel moves forward is: s l1 =L*θ1;

[0052] Wherein L is the distance between the left driving wheel 4 and the right driving wheel 5, and θ1 is the preset initial swing angle;

[0053] The second horizontal swing needs to be aligned with the center of the machine's initial position. The second swing angle is: θ2 = arc((L-2*L*cos(θ1)) / L), and the right wheel advances distance: s r2 =L

[0054] *(θ1+θ2);

[0055] The third swing angle is 2*θ2, and the left driving wheel 4 and the right driving wheel 5 swing alternately for the same distance, and the left wheel moves forward by a distance slx = s rx = L * θ2 * 2

[0056] Embodiment 2:

[0057] This embodiment includes the structure shown in Embodiment 1. In addition, a lidar detector can be provided on the bottom surface of the vehicle body. The control box 1 receives the road surface information detected by the lidar detector and adjusts the grinding speed, traveling speed, etc. An ultrasonic ranging device is provided on the vehicle body, and the ultrasonic ranging device is communicatively connected to the control box 1. The control box 1 receives the information of the ultrasonic ranging device, and when an obstacle is encountered, it controls the drive mechanism and the grinding mechanism to stop running or turn to avoid the obstacle.

[0058] Embodiment 3:

[0059] As Figure 9 shown, the structures not listed in this embodiment are the same as those in Embodiment 1. In addition, the hand-held mechanism 25 includes a swing arm 251, a control panel 252, and a handrail 253. The swing arm 251 is rotatably installed at the end of the vehicle body. The control panel 252 is installed on the swing arm 251. The handrail 253 is provided at the end of the swing arm 251, and a steering switch 2531 is provided on the handrail 253;

[0060] As Figure 10 shown, an angle adjustment mechanism is further provided on the swing arm 251. The angle adjustment mechanism includes a gear disk 2511, a pull rod 2512, and a clamping shaft 2513. The gear disk 2511 is provided on the vehicle body. The swing arm 251 is connected to the gear disk 2511 through a rotating shaft. The pull rod 2512 is connected to the clamping shaft 2513 through a connecting rod. The clamping shaft 2513 is engaged with the teeth on the gear disk 2511; a reset device is provided on the connecting rod, and the reset device is a spring sleeved on the connecting rod. Pull up the pull rod 2512 to disengage the clamping shaft 2513 from the teeth of the gear disk 2511. Manually rotate the swing arm 251 to an appropriate angle and then release the pull rod 2512. Under the action of the spring, the clamping shaft 2513 resets and engages with the teeth of the gear disk 2511. The control panel 252 is provided with function buttons the same as those of the remote control. It can be switched to manual control of the grinding machine.

[0061] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements can still be made, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. A stepping grinding machine, comprising a body, a grinding mechanism, a driving mechanism, a control box (1) and a remote controller, characterized in that: The grinding mechanism is arranged at the head of the vehicle body, a driving mechanism is arranged under the vehicle body, the control box is mounted on the vehicle body and is electrically connected to the grinding mechanism, the driving mechanism, and the control box is communicatively connected to a remote controller; the grinding mechanism comprises a gear box (2) and grinding discs (3), the gear box (2) being connected to at least two grinding discs (3); the driving mechanism comprises a left driving wheel (4) and a right driving wheel (5), the gear box (2) being provided with grinding motors (6) the same number as the grinding discs (3); the left driving wheel (4) and the right driving wheel (5) are respectively provided with a left driving motor and a right driving motor, and the remote controller can control the vehicle body to follow an S-shaped route through the control box.

2. A stepping grinding machine according to claim 1, characterized in that: The remote controller is provided with a display screen (7), a directional joystick (8) and function buttons, wherein the function buttons include a travel speed control knob (9) arranged on the board surface, a grinding disc speed control knob (10), an offset compensation knob (11), a grinding disc rotation direction key (12), a vehicle body travel status key (13), a grinding disc start / stop key (14), a power switch (15), and also includes a step grinding switch (16) and an emergency stop switch (17) arranged on the side.

3. A stepping grinding machine according to claim 2, characterized in that: The vehicle body travel state key (13) is a three-speed switch, and the vehicle body travel state key (13) can control the vehicle body to move forward, backward or stop. The grinding wheel rotation key (12), the grinding wheel start and stop key (14), and the power switch (15) are all two-speed switches.

4. A step grinding machine according to claim 1, characterized in that: The front end of the vehicle body is also provided with a lighting lamp (18), the lighting lamp (18) is connected to the control box (1), and the remote controller is provided with a lighting switch (19).

5. A step grinding machine according to claim 1, characterized in that: A spray water pump (20) is arranged below the vehicle body, and the spray water pump (20) is connected to a control box; a water pump switch (21) is arranged on the remote controller.

6. A stepping grinding machine according to claim 1, characterized in that: The remote controller is also provided with a frequency modulation button (22).

7. A step grinding machine according to claim 1, characterized in that: A battery box is also provided on the vehicle body, a seat (23) is provided on the battery box, armrests are provided on both sides of the seat (23), and an operating panel (24) is provided on the armrest on either side; and an angle-adjustable handrail mechanism (25) is also provided at the rear end of the vehicle body.

8. The stepping grinding machine according to claim 1, characterized in that: It also includes a guide wheel lifting mechanism (26), wherein the guide wheel lifting mechanism (26) includes a lifting frame (261), a fixing frame (262) and a lifting drive device; The lifting frame (261) is a retractable quadrilateral structure, comprising an articulated seat (2611), an arm (2612) and two sets of connecting rods (2613), the two ends of the connecting rods (2613) being respectively articulated with the articulated seat (2611) and the arm (2612), and a universal wheel is installed on the arm (2612); The lifting drive device is an electric-driven hydraulic rod (263), and two ends of the electric-driven hydraulic rod (263) are respectively hinged at opposite corners of the lifting frame (261); A plurality of pin holes are arranged at corresponding positions on the fixing frame (262) and the hinge seat (2611), and the position of the lifting frame (261) can be changed by locking the hinge seat (2611) and the fixing frame (262) through the pin holes at different positions.

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