Grinding machine with quickly-detached grinding head and working method of grinding machine

Abstract

The grinding machine comprises a grinding machine main body, the grinding head is detachably connected to the front side of the grinding machine main body, a lifting mechanism is installed on the front side of the grinding machine main body, a guide wheel assembly is detachably connected to the grinding machine main body, and the grinding machine further comprises a grinding head dismounting and replacing assembly; the grinding head dismounting and replacing assembly is detachably connected with the grinding head. The grinding machine is reasonable in design, through detachable connection of the grinding machine body and the grinding head and cooperation of the lifting mechanism, rapid separation of the grinding machine body and the grinding head is achieved, meanwhile, movement of the separated grinding machine body is achieved through the guide wheel assembly, movement of the separated grinding head is achieved through the grinding head dismounting and replacing assembly, a specific lifting table is not needed any more, and operation is convenient. And meanwhile, the grinding head can be adjusted in a self-adaptive mode according to the left-right height difference of the ground, and the grinding height of the grinding head can be adjusted in a self-adaptive mode in the grinding process.

Description

Technical Field

[0001] The invention relates to a grinding head quick-detachable grinding machine and a working method thereof. Background Art

[0002] At present, floor grinders are mainly used for ground grinding. They can effectively grind terrazzo, concrete surface, epoxy mortar layer and old epoxy floor, etc. They are light, flexible and have high work efficiency.

[0003] However, existing floor grinders generally include a movable grinder body, a grinding head installed on the front side of the grinder body, and a dust suction mechanism installed on the rear side of the grinder body. Different grinding heads or grinding discs are used for different floors. The general method for replacing the grinding head is: the large grinder body equipped with the grinding head is driven to a special lifting workbench similar to automobile repair operations, and the grinder body and the grinding head are dismantled through the lifting workbench. If only the grinding disc is replaced, the entire machine needs to be lifted and lowered so that the grinding disc can be replaced manually. Therefore, if the grinding head or grinding disc is quickly realized, it becomes a technical problem that needs to be solved urgently, and this case is born from this. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a quick-detachable grinding machine and a working method thereof. The design is reasonable, and the grinding machine body and the grinding head are quickly separated through the detachable connection between the grinding machine body and the grinding head and the cooperation of the lifting mechanism. At the same time, the movement of the grinding machine body after separation is achieved through the guide wheel assembly, and the movement of the grinding head after separation is achieved through the grinding head replacement assembly. No specific lifting platform is required, and disassembly and replacement are convenient, which facilitates professional grinding machine maintenance and care work.

[0005] The present invention is implemented by the following scheme: a grinding machine with a quick-detachable grinding head, including a grinding machine body, a grinding head detachably connected to the front side of the grinding machine body, a lifting mechanism installed on the front side of the grinding machine body, a guide wheel assembly detachably connected to the grinding machine body, and a grinding head replacement assembly, which is detachably connected to the grinding head.

[0006] Furthermore, a connecting bracket for connecting the grinding head is provided on the front side of the grinding machine body, and grinding head hinge seats are symmetrically provided on the left and right sides of the upper part of the grinding head. The side frame of the connecting bracket is rotatably connected to the grinding head hinge seat on the same side through a pin shaft.

[0007] Furthermore, the grinding head articulated seat includes vertical articulated plates symmetrically arranged on the left and right, a sleeve mounting hole is opened on the articulated plate, an eccentric sleeve is sleeved in the sleeve mounting hole, a pin is inserted between the two eccentric sleeves, and the side frame of the connecting bracket is rotatably connected between the two eccentric sleeves on the same side through the pin.

[0008] Furthermore, the grinding head includes a grinding head shell, a gear box mounting plate is mounted inside the grinding head shell, a grinding disc driven by the gear box is mounted under the gear box mounting plate, the grinding head articulated seat also includes an articulated base, the articulated base is mounted on the gear box mounting plate, an articulated connecting block is provided on the articulated base, the articulated plate is provided on the articulated connecting block, a clearance opening for the articulated plate to extend is opened on the grinding head shell, a clamping shoulder is provided on the outer periphery of the upper end of the articulated connecting block, and the clamping shoulder abuts against the lower part of the grinding head shell at the outer periphery of the clearance opening.

[0009] Furthermore, the lifting mechanism is installed on the front side of the connecting bracket, and the lifting mechanism includes a lifting cylinder, which is vertically installed on the middle part of the front side of the connecting bracket. A clearance hole is opened on the grinding head corresponding to the telescopic end of the jacking cylinder, and the telescopic end of the jacking cylinder is connected to a support base through a universal shaft.

[0010] Furthermore, a mounting bracket is provided on the middle part of the front side of the connecting bracket, the lifting mechanism is installed on the mounting bracket, the guide wheel assembly includes a front guide wheel assembly, the front guide wheel assembly includes a front guide wheel fixing bracket, the front guide wheel is rotatably connected to the lower end of the front guide wheel fixing bracket, a front guide wheel mounting seat is provided on the mounting bracket corresponding to the upper end of the front guide wheel fixing bracket, the upper end of the front guide wheel fixing bracket is fixed in the front guide wheel mounting seat by a pin, an L-shaped slot is provided on the front guide wheel mounting seat, and a pin that cooperates with the L-shaped slot is provided on the upper end of the front guide wheel fixing bracket.

[0011] Furthermore, the guide wheel assembly also includes a rear guide wheel assembly, and the rear guide wheel assembly includes a rear guide wheel fixing frame, the lower end of the rear guide wheel fixing frame is rotatably connected to the rear guide wheel, and a rear guide wheel mounting seat is provided on the middle part of the rear side of the grinding machine body corresponding to the upper end of the rear guide wheel fixing frame, and the upper end of the rear guide wheel fixing frame is fixed in the rear guide wheel mounting seat by a pin.

[0012] Furthermore, the grinding head replacement assembly includes a grinding head plug-in bracket symmetrically arranged on the left and right, the grinding head plug-in bracket includes a base plate, a walking wheel is rotatably connected under the base plate, a lifting rod is installed on the middle part of the base plate, a plug-in plate is provided on the side of the lifting rod, and a plug-in seat is symmetrically arranged on the left and right of the grinding head, and horizontal latch sleeves are correspondingly arranged on the front and back of the plug-in seat, and the direction of the latch sleeve is the same as that of the shaft sleeve mounting hole, and a plug-in pin is provided on the corresponding shaft sleeve mounting hole and the latch sleeve on the plug-in plate.

[0013] Furthermore, an electric wheel assembly is symmetrically installed on the lower part of the grinder body, and the electric wheel assembly includes a wheel frame, a wheel is rotatably connected to the lower part of the wheel frame, and a motor mechanism for driving the wheel to rotate is installed on the side of the wheel frame. A positioning pin hole is provided on the top of the wheel frame, and a matching pin hole is provided on the chassis of the grinder body corresponding to the positioning pin hole. The positioning pin holes are connected to each other by a positioning pin, and the wheel frame and the chassis of the grinder body are locked by at least two bolts.

[0014] A working method of a grinding head quick-detachable grinding machine: When the grinding head needs to be replaced or separated from the grinder body: Step 1: Pull out the pins in the hinged seats of the left and right grinding heads and remove the eccentric bushings to release the connection between the bracket and the grinding head; Step 2: Start the lifting cylinder, which drives the front side of the connecting bracket to lift up, so that the connecting bracket and the grinding head are completely separated; Step 3: Fix the front guide wheel assembly to the front side of the connecting bracket, then reset the jacking cylinder, and the telescopic end of the jacking cylinder will be separated from the grinding head from the upper end of the clearance hole, while the front guide wheel will be against the ground; Step 4: Fix the rear guide wheel assembly to the rear side of the grinder body; Step 5: Remove the grinder body; Step 6: Insert the plug pins on the left and right grinding head brackets into the corresponding sleeve mounting holes and plug sleeves on the same side, then lift the plug plate through the lifting rod to drive the grinding head off the ground to achieve mobility of the grinding head.

[0015] Compared with the prior art, the present invention has the following beneficial effects: reasonable design, through the detachable connection between the grinder body and the grinding head and the cooperation of the lifting mechanism, the grinder body and the grinding head can be quickly separated, and the movement of the grinder body after separation is achieved through the guide wheel assembly, and the movement of the grinding head after separation is achieved through the grinding head replacement assembly. No specific lifting platform is required, and the disassembly and replacement is convenient, which facilitates the professional grinder maintenance and care work. At the same time, the grinding head can be adaptively adjusted according to the left and right height difference of the ground, so that the grinding head can adaptively adjust the grinding height during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 A in the middle is an enlarged structural diagram; Figure 3 for Figure 2 Schematic diagram of the structure after removing the connecting bracket; Figure 4This is a schematic diagram of the main structure of the present invention (the grinding head is cut away); Figure 5 for Figure 4 The enlarged structural diagram at B in the middle; Figure 6 This is a schematic structural diagram of the grinding machine body and the guide wheel assembly after being connected (front side); Figure 7 for Figure 6 The enlarged structural diagram at C in the middle; Figure 8 This is a schematic diagram of the structure of the grinding machine body and the guide wheel assembly after being connected (rear side); Figure 9 for Figure 8 The enlarged structural diagram at D in the middle; Figure 10 This is a schematic diagram of the connection structure between the grinding head and the grinding head replacement assembly of the present invention; Figure 11 Schematic diagram of the main structure of the grinding machine of the present invention (bottom side); Figure 12 This is a schematic cross-sectional view of the grinding machine body and the guide wheel assembly after being connected; Figure 13 It is a schematic diagram of the connection structure between the grinding machine body and the grinding head of the present invention.

[0017] In the figure: 1-grinding machine body; 2-grinding head; 3-lifting mechanism; 4-guide wheel assembly; 5-grinding head replacement assembly; 6-connecting bracket; 7-grinding head hinge seat; 8-hinge plate; 9-sleeve mounting hole; 10-eccentric shaft sleeve; 11-pin shaft; 12-grinding head housing; 13-gearbox mounting plate; 14-gearbox; 15-grinding disc; 16-hinge base; 17-hinge connecting block; 17-1-clamping shoulder; 18-clearance port; 19-lifting cylinder; 20-clearance hole; 21-universal shaft; 22-support base; 23-mounting frame; 24-front guide wheel assembly; 25-front guide wheel fixing frame; 25-1-tilt plate; 25-2-connecting column; 26-front guide wheel; 27-front guide wheel mounting seat; 27-1-front guide wheel mounting seat plate; 28-latch; 29-L-shaped slot ;30-pin;31-rear guide wheel assembly;32-rear guide wheel fixing frame;32-1-support plate;32-2-horizontal connecting plate;32-3-connecting top plate;32-4-reinforced connecting ribs;32-5-slot;33-rear guide wheel;34-rear guide wheel mounting seat;34-1-rear guide wheel mounting plug-in plate;35-grinding head plug-in bracket;36-bottom plate;37-traveling wheel;38-lifting rod;39-plug-in plate;40-plug-in seat;40-1-plug-in seat bottom plate;40-2-plug-in seat connecting column;40-3-yield mounting hole;41-plug-in sleeve;42-plug-in pin shaft;43-electric wheel assembly;44-wheel frame;45-wheel;46-motor mechanism;46-1-motor;46-2-gear set;47-locating pin hole;48-matching pin hole;49-locating pin. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0020] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0021] like Figure 1-13As shown, a grinding machine with a quick-detachable grinding head includes a grinding machine body 1, a grinding head 2 is detachably connected to the front side of the grinding machine body 1, a lifting mechanism 3 is installed on the front side of the grinding machine body 1, a guide wheel assembly 4 is detachably connected to the grinding machine body 1, and a grinding head replacement assembly 5 is further included. The grinding head replacement assembly 5 is detachably connected to the grinding head 2; During use, when the grinding head 2 needs to be replaced, the connection between the grinding head 2 and the grinding machine body 1 is first removed, and then the front side of the grinding machine body 1 is lifted up by the lifting mechanism 3 to separate the grinding head 2 from the grinding machine body 1. Then, the guide wheel assembly 4 is installed on the grinding machine body 1, and the grinding machine body 1 can be quickly removed. Then, the grinding head replacement assembly 5 is connected to the grinding head 2 to realize the movement of the grinding head 2, and the grinding head 2 can be quickly separated and moved from the grinding machine body 1, which is convenient for replacing the grinding head and improving the replacement efficiency. At the same time, if only the grinding disk 15 at the bottom of the grinding head 2 needs to be replaced, the front side of the grinding machine body 1 can be lifted up by the lifting mechanism 3 without removing the connection between the grinding head 2 and the grinding machine body 1, so that the grinding head 2 is driven up by the front side of the grinding machine body 1, so that the bottom of the grinding head 2 is exposed, which is convenient for replacing the grinding disk 15.

[0022] In this embodiment, in order to achieve a detachable connection between the grinding head 2 and the grinder body 1, a connecting bracket 6 for connecting the grinding head 2 is provided on the front side of the grinder body 1, and the connecting bracket 6 includes bracket side panels that are symmetrically arranged on the left and right. A connecting plate is placed horizontally between the front ends of the two bracket side panels, and the rear ends of the two bracket side panels are respectively fixed on the left and right sides of the grinder body 1. Grinding head articulated seats 7 are symmetrically provided on the left and right sides of the upper part of the grinding head 2. The side frame of the connecting bracket 6 is rotatably connected to the grinding head articulated seat 7 on the same side through the pin shaft 11, that is, the bracket side plate is rotatably connected to the grinding head articulated seat 7 on the same side through the pin shaft 11, and the detachable connection between the grinding head 2 and the grinder body 1 is achieved by the insertion and disengagement of the pin shaft 11.

[0023] In this embodiment, in order to enable the grinding head 2 to be adaptively adjusted according to the left and right height difference of the ground, the grinding head articulated seat 7 includes a vertical hinge plate 8 symmetrically arranged on the left and right, and a sleeve mounting hole 9 is opened on the hinge plate 8. An eccentric sleeve 10 is sleeved in the sleeve mounting hole 9. The eccentric sleeve 10 is made of rubber material. The sleeve inner hole of the eccentric sleeve 10 is not concentric with the outer wall, that is, the sleeve inner hole of the eccentric sleeve 10 is not concentric with the sleeve mounting hole 9. When there is a height difference between the left and right sides of the ground, there is a height difference between the left and right sides of the grinding head 2. At this time, the eccentric sleeve Under the action of the supporting force of the pin 11 and the ground, the height is adaptively rotated to adjust the height, which is convenient for better grinding of the ground. A pin 11 is inserted between the two eccentric sleeves 10, and the side frame of the connecting bracket 6 is rotatably connected between the two eccentric sleeves 10 on the same side through the pin 11, that is, the bracket side plate is rotatably connected between the two eccentric sleeves 10 on the same side through the pin 11, that is, the bracket side plate is provided with a rotating hole that cooperates with the pin 11. Of course, the spacing between the two hinged plates is greater than the thickness of the bracket side plate, so that there is a movable gap between the bracket side plate and the two hinged plates.

[0024] In this embodiment, since the structural rigidity of the grinding head shell 12 of the grinding head 2 is unable to bear the internal structure of the entire grinding head, the grinding head shell 12 is only used to prevent dust from flying during grinding, so the grinding head articulated seat 7 is not fixed on the outer shell of the grinding head shell 12. Specifically, the grinding head 2 includes a grinding head shell 12, and a gear box mounting plate 13 is set inside the grinding head shell 12, that is, the supporting structure actually used to install various grinding components in the grinding head 2 is the gear box mounting plate 13, and the grinding head shell 12 is the shell outside the gear box mounting plate 13. A grinding disc 15 driven by a gear box 14 is installed under the gear box mounting plate 13. Of course, the relevant gear box drive motor is also installed on the gear box mounting plate 13, and the grinding head articulated seat 7 also includes an articulated base 16 The hinged base 16 is mounted on the gear box mounting plate 13, and a hinged connecting block 17 is provided on the hinged base 16. The hinged plate 8 is arranged on the hinged connecting block 17. A clearance opening 18 for the hinged plate 8 to extend is provided on the grinding head shell 12. The hinged plate 8 extends out of the clearance opening 18 to realize the detachable connection between the grinding head 2 and the grinding machine body 1. A snap shoulder 17-1 is provided on the outer periphery of the upper end of the hinged connecting block 17. The snap shoulder 17-1 abuts against the lower part of the grinding head shell 12 on the outer periphery of the clearance opening 18. In order to facilitate installation, the length and width of the clearance opening 18 are larger than the area of the two hinged plates 8. Therefore, in order to prevent the grinding dust from flying out from the edge gap of the clearance opening, a snap shoulder 17-1 is provided on the outer periphery of the upper end of the hinged connecting block 17 to seal the clearance opening 18.

[0025] In this embodiment, in order to realize that the lifting mechanism can lift the front side of the grinding machine body 1, the lifting mechanism 3 is installed on the connecting plate on the front side of the connecting bracket 6, and the lifting mechanism 3 includes a lifting cylinder 19, and the lifting cylinder 19 is vertically installed on the middle part of the connecting plate on the front side of the connecting bracket 6, and the telescopic end of the lifting cylinder 19 is downward, and a clearance hole 20 is provided on the grinding head 2 corresponding to the telescopic end of the lifting cylinder 19, that is, a clearance hole 20 is provided on the grinding head shell 12, and the mechanism in the grinding head 2 is set to give way corresponding to the lifting cylinder 19. Since the lifting cylinder 19 will tilt when jacking up the connecting bracket 6, the diameter of the clearance hole 20 is larger than the diameter of the lifting cylinder 19, and the clearance hole 20 is larger than the diameter of the lifting cylinder 19. The diameter matches the range of motion of the jacking cylinder 19 when jacking up the connecting bracket 6. The telescopic end of the jacking cylinder 19 is connected to a support base 22 through a universal joint 21. The support base is fitted with the ground to facilitate the definition of the telescopic end position of the jacking cylinder 19. At the same time, the jacking cylinder 19 between the connecting plate and the grinding head shell 12 is covered with an accordion cover. The lower end of the accordion cover can be fixed to the grinding head shell 12 outside the makeshift hole 20 by bolts, completely covering the makeshift hole 20. The upper end of the accordion cover is fixed to the jacking cylinder 19 to prevent dust from splashing from the makeshift hole 20. Of course, when replacing the grinding head, it is necessary to release the connection between the lower end of the accordion cover and the grinding head shell 12 outside the makeshift hole 20 in advance.

[0026] In this embodiment, in order to achieve rapid movement of the grinding machine body 1 after the grinding head 2 is removed, a mounting bracket 23 is provided on the middle part of the connecting plate on the front side of the connecting bracket 6, and the lifting mechanism 3 is installed on the mounting bracket 23, that is, the jacking cylinder 19 is installed on the mounting bracket 23, and the guide wheel assembly 4 includes a front guide wheel assembly 24, and the front guide wheel assembly 24 includes a front guide wheel fixing bracket 25, and the lower end of the front guide wheel fixing bracket 25 is rotatably connected to the front guide wheel 26, and the upper end of the front guide wheel fixing bracket 25 corresponding to the front guide wheel fixing bracket 25 is provided with a front guide wheel mounting seat 27 on the mounting bracket 23, and the upper end of the front guide wheel fixing bracket 25 is fixed in the front guide wheel mounting seat 27 by a latch 28, and an L-shaped slot 29 is provided on the front guide wheel mounting seat 27, and the upper end of the front guide wheel fixing bracket 25 is provided with a bayonet 30 that cooperates with the L-shaped slot 29; Specifically, the front guide wheel fixing frame 25 includes a vertically arranged inclined plate 25-1 symmetrically arranged on the left and right, and the two inclined plates 25-1 are connected by a number of connecting columns 25-2. The front guide wheel 26 is installed between the lower ends of the two inclined plates 25-1. The front guide wheel mounting seat 27 includes a front guide wheel mounting seat plate 27-1 symmetrically arranged on the left and right. The spacing between the two front guide wheel mounting seat plates 27-1 is greater than the spacing between the two inclined plates 25-1. L-shaped card slots 29 are correspondingly provided on the two front guide wheel mounting seat plates 27-1. The vertical portion of the L-shaped card slot 29 is on the top and the horizontal portion is on the bottom. The end of the horizontal portion passes through the front side of the front guide wheel mounting seat plate 27-1. A bayonet 30 is horizontally placed between the upper ends of the two inclined plates 25-1, and the two ends of the bayonet 30 respectively penetrate The front guide wheel fixing frame 25 and the front guide wheel mounting seat 27 are quickly and initially positioned through the L-shaped slot 29 and the bayonet 30, and then the front guide wheel fixing frame 25 and the front guide wheel mounting seat 27 are fixed through the latch 28. Of course, corresponding sockets 28 are provided on the front guide wheel fixing frame 25 and the front guide wheel mounting seat 27, and the height of the front guide wheel fixing frame 25 on the vertical plane is greater than the setting height of the front guide wheel mounting seat 27 when the grinder body 1 is in normal use, so that after the grinder body 1 removes the grinding head 2, the front guide wheel assembly 24 will still lift the connecting bracket 6, so as to facilitate the complete separation of the grinder body 1 from the grinding head 2.

[0027] In this embodiment, since the center of gravity of the grinder body 1 is at the rear after the grinding head 2 is removed from the grinder body 1, in order to prevent the grinder body 1 from falling backward during movement, the guide wheel assembly 4 further includes a rear guide wheel assembly 31, and the rear guide wheel assembly 31 includes a rear guide wheel fixing frame 32, and a rear guide wheel 33 is rotatably connected to the lower end of the rear guide wheel fixing frame 32. A rear guide wheel mounting seat 34 is provided on the middle portion of the rear side of the grinder body 1 corresponding to the upper end of the rear guide wheel fixing frame 32, and the upper end of the rear guide wheel fixing frame 32 is fixed in the rear guide wheel mounting seat 34 by a latch 28; Specifically: the rear guide wheel fixing frame 32 includes an inclined support plate 32-1, a horizontal connecting plate 32-2 is provided at the lower end of the support plate 32-1, the rear guide wheel 33 is rotatably connected to the lower side of the horizontal connecting plate 32-2, and a vertical connecting top plate 32-3 is provided at the upper end of the support plate 32-1 to fit the rear side of the grinder body 1, and vertical reinforcement connecting ribs 32-4 are provided on the support plate 32-1 and the connecting top plate 32-3. The reinforcement connecting ribs 32-4 are perpendicular to the support plate 32-1 and the connecting top plate 32-3. The rear guide wheel mounting seat 34 includes a rear guide wheel mounting plug-in plate 34-1 arranged symmetrically on the left and right. The rear guide wheel mounting plug-in plate 34-1 is fixed on the rear side of the grinding machine body 1. A slot 32-5 is provided on the connecting top plate 32-3 corresponding to the rear guide wheel mounting plug-in plate 34-1. After the guide wheel mounting plug-in plate passes through the slot 32-5, it is parallel to the reinforced connecting rib 32-4. The two guide wheel mounting plug-ins are fixed to the reinforced connecting rib 32-4 by at least two pins 28, thereby realizing the connection between the rear guide wheel assembly 31 and the grinding machine body 1.

[0028] In this embodiment, in order to realize the detachable connection between the grinding head replacement assembly 5 and the grinding head 2, the grinding head replacement assembly 5 includes a grinding head plug-in bracket 35 that is symmetrically arranged on the left and right. The grinding head plug-in bracket 35 includes a bottom plate 36, and a walking wheel 37 is rotatably connected to the bottom of the bottom plate 36. A lifting rod 38 is installed on the middle part of the bottom plate 36, and a plug-in plate 39 is provided on the side of the lifting rod 38. The grinding head 2 is symmetrically provided with a plug seat 40 on the left and right. The plug seat 40 is correspondingly provided with a horizontal latch sleeve 41 in the front and rear. The direction of the latch sleeve 41 is the same as the shaft sleeve mounting hole 9. The corresponding shaft sleeve mounting hole 9 and the latch sleeve 41 on the plug-in plate 39 are provided with a plug pin shaft 42. Specifically, the lifting rod 38 adopts the existing telescopic rod, which can be a vertically arranged The bottom rod is arranged on the bottom rod, and the outer rod is slidably connected to the upper end of the bottom rod. The outer rod is provided with a handle, and a cylinder or oil cylinder for driving the outer tube to rise and fall is installed in the bottom rod. The plug plate 39 is fixed to the outside of the outer rod and rises and falls with the lifting of the outer rod. At the same time, in order to be reasonable in design, the socket 40 includes a socket base plate 40-1, and a plurality of socket connecting columns 40-2 are arranged under the socket base plate 40-1. The grinding head shell 12 is provided with a yield mounting hole 40-3 corresponding to the socket connecting column 40-2. The socket connecting column 40-2 is inserted into the grinding head 2 through the yield mounting hole 40-3 and is screwed on the gear box mounting plate 13. The socket base plate 40-1 abuts against the grinding head shell 12 and covers the yield mounting hole 40-3 to prevent dust from splashing out. The latch sleeve 41 is installed on the socket base plate 40-1; During use, the two grinding head plug-in brackets 35 are driven to move to the two sides of the grinding head 2 through the sliding of the walking wheel 37, and then the plug-in pin 42 is inserted into the shaft sleeve mounting hole 9 and the plug-in sleeve 41 on the same side. After that, the plug-in plate 39 is lifted by the lifting rod 38 to drive the grinding head 2 off the ground, thereby realizing the movement of the grinding head 2.

[0029] In this embodiment, in order to realize the quick release of the electric wheel at the bottom of the grinding machine body 1, the lower part of the grinding machine body 1 is symmetrically installed with an electric wheel assembly 43, and the electric wheel assembly 43 includes a wheel frame 44, and the wheel frame 44 is rotatably connected to the lower part of the wheel frame 44. A motor mechanism 46 for driving the wheel 45 to rotate is installed on the side of the wheel frame 44. The motor mechanism 46 includes a motor 46-1 installed on one side of the wheel frame 44, and the motor shaft of the motor 46-1 and one end of the wheel shaft of the wheel 45 are driven by a plurality of meshing gear sets 46-2 to realize transmission, and the wheel is driven by the motor 46-1. 45 movement, a locating pin hole 47 is provided on the top of the wheel frame 44, and a matching pin hole 48 is provided on the chassis of the grinder body 1 corresponding to the locating pin hole 47. The locating pin hole 47 and the matching pin hole 48 are connected by a locating pin 49, and the wheel frame 44 and the chassis of the grinder body 1 are locked by at least two bolts. When in use, the locating pin hole 47 and the matching pin hole 48 are first connected by the locating pin 49 to achieve preliminary positioning of the electric wheel assembly 43, and then the wheel frame 44 is connected to the chassis of the grinder body 1 by bolts to achieve quick release of the electric wheel at the bottom of the grinder body 1.

[0030] A working method of a grinding head quick-detachable grinding machine: When the grinding head 2 needs to be replaced or the grinding head 2 needs to be separated from the grinding machine body 1: Step 1: Pull out the pins 11 in the hinged seats of the left and right grinding heads 2 and remove the eccentric bushings 10 to release the connection between the connecting bracket 6 and the grinding head 2; Step 2: Start the lifting cylinder 19, which drives the front side of the connecting bracket 6 to lift up, so that the connecting bracket 6 is completely separated from the grinding head 2; Step 3: Fix the front guide wheel assembly 24 to the front side of the connecting bracket 6, then reset the jacking cylinder 19, and the telescopic end of the jacking cylinder 19 is separated from the grinding head 2 through the upper end of the clearance hole 20, while the front guide wheel 26 is against the ground; Step 4: Fix the rear guide wheel assembly 31 to the rear side of the grinding machine body 1; Step 5: Remove the grinding machine body 1; Step 6: Insert the plug pins 42 on the left and right grinding head plug-in brackets 35 into the corresponding sleeve mounting holes 9 and the plug sleeve 41 on the same side, and then lift the plug-in plate 39 through the lifting rod 38 to drive the grinding head 2 off the ground to achieve the mobility of the grinding head 2.

[0031] Unless otherwise stated, for any of the technical solutions disclosed in the present invention, if a numerical range is disclosed, the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely a numerical range that is representative or has a more obvious technical effect among many feasible numerical values. Due to the large number of numerical values, it is impossible to enumerate them exhaustively. Therefore, the present invention discloses some numerical values to illustrate the technical solutions of the present invention. Moreover, the numerical values listed above should not be construed as limiting the scope of protection of the present invention.

[0032] If words such as "first" and "second" are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of description to distinguish between components. Unless otherwise stated, the above words have no special meaning.

[0033] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously not possible to use an integrated molding process).

[0034] In addition, the orientations or positional relationships indicated by terms such as "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" used in any of the technical solutions disclosed in the above invention are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this patent, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this patent. Unless otherwise stated, the terms used to indicate shapes used in any of the technical solutions disclosed in the above invention include shapes that are approximate, similar, or close to them.

[0035] Any component provided by the present invention may be assembled from multiple separate components, or may be a separate component manufactured by an integral molding process.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention. They should all be included in the scope of the technical solution for protection of the present invention.

Claims

1. A quick-detachable grinding machine, comprising a grinding machine body (1), a grinding head (2) being detachably connected to the front side of the grinding machine body (1), characterized in that: A lifting mechanism (3) is installed on the front side of the grinding machine body (1), a guide wheel assembly (4) is detachably connected to the grinding machine body (1), and a grinding head replacement assembly (5) is also included, and the grinding head replacement assembly (5) is detachably connected to the grinding head (2); A connecting bracket (6) for connecting to a grinding head (2) is provided on the front side of the grinding machine body (1), and grinding head hinge seats (7) are symmetrically provided on the left and right sides of the upper part of the grinding head (2), and the side frame of the connecting bracket (6) is rotatably connected to the grinding head hinge seat (7) on the same side through a pin shaft (11); The grinding head hinge seat (7) includes a vertical hinge plate (8) symmetrically arranged on the left and right, a sleeve mounting hole (9) is provided on the hinge plate (8), an eccentric sleeve (10) is sleeved in the sleeve mounting hole (9), a pin (11) is inserted between the two eccentric sleeves (10), and the side frame of the connecting bracket (6) is rotatably connected to the two eccentric sleeves (10) on the same side through the pin (11); The lifting mechanism (3) is installed on the front side of the connecting bracket (6), and the lifting mechanism (3) includes a lifting cylinder (19). The lifting cylinder (19) is vertically installed on the middle part of the front side of the connecting bracket (6). A clearance hole (20) is opened on the grinding head (2) corresponding to the telescopic end of the lifting cylinder (19), and the telescopic end of the lifting cylinder (19) is connected to a support base (22) through a universal shaft (21).

2. The quick-detachable grinding machine according to claim 1, characterized in that: The grinding head (2) includes a grinding head shell (12), a gear box mounting plate (13) is mounted inside the grinding head shell (12), a grinding disc (15) driven by a gear box (14) is mounted under the gear box mounting plate (13), the grinding head articulated seat (7) further includes an articulated base (16), the articulated base (16) is mounted on the gear box mounting plate (13), an articulated connecting block (17) is provided on the articulated base (16), the articulated plate (8) is arranged on the articulated connecting block (17), a clearance opening (18) for the articulated plate (8) to extend is opened on the grinding head shell (12), a clamping shoulder (17-1) is provided on the outer periphery of the upper end of the articulated connecting block (17), and the clamping shoulder (17-1) abuts against the lower part of the grinding head shell (12) on the outer periphery of the clearance opening (18).

3. The quick-detachable grinding machine according to claim 1, characterized in that: A mounting frame (23) is provided on the middle portion of the front side of the connecting bracket (6), and the lifting mechanism (3) is mounted on the mounting frame (23). The guide wheel assembly (4) includes a front guide wheel assembly (24), and the front guide wheel assembly (24) includes a front guide wheel fixing frame (25). A front guide wheel (26) is rotatably connected to the lower end of the front guide wheel fixing frame (25). A front guide wheel mounting seat (27) is provided on the mounting frame (23) at an upper end corresponding to the front guide wheel fixing frame (25). The upper end of the front guide wheel fixing frame (25) is fixed in the front guide wheel mounting seat (27) by a latch (28). An L-shaped slot (29) is provided on the front guide wheel mounting seat (27), and a latch pin (30) that cooperates with the L-shaped slot (29) is provided on the upper end of the front guide wheel fixing frame (25).

4. The quick-detachable grinding machine according to claim 3, characterized in that: The guide wheel assembly (4) further includes a rear guide wheel assembly (31), the rear guide wheel assembly (31) including a rear guide wheel fixing frame (32), a rear guide wheel (33) being rotatably connected to the lower end of the rear guide wheel fixing frame (32), a rear guide wheel mounting seat (34) being provided on the middle portion of the rear side of the grinding machine body (1) corresponding to the upper end of the rear guide wheel fixing frame (32), and the upper end of the rear guide wheel fixing frame (32) being fixed in the rear guide wheel mounting seat (34) by a latch (28).

5. The quick-detachable grinding machine according to claim 4, characterized in that: The grinding head replacement assembly (5) includes a grinding head plug-in bracket (35) symmetrically arranged on the left and right, and the grinding head plug-in bracket (35) includes a base plate (36), a walking wheel (37) is rotatably connected to the bottom of the base plate (36), a lifting rod (38) is installed on the middle part of the base plate (36), and a plug-in plate (39) is provided on the side of the lifting rod (38), and a plug-in seat (40) is symmetrically arranged on the left and right of the grinding head (2), and a horizontal latch sleeve (41) is correspondingly arranged on the front and back of the plug-in seat (40), and the direction of the latch sleeve (41) is the same as that of the shaft sleeve mounting hole (9), and a plug-in pin shaft (42) is provided on the plug-in plate (39) corresponding to the shaft sleeve mounting hole (9) and the latch sleeve (41).

6. The quick-detachable grinding machine according to claim 5, characterized in that: An electric wheel assembly (43) is symmetrically mounted on the lower portion of the grinding machine body (1), the electric wheel assembly (43) comprising a wheel frame (44), a wheel (45) being rotatably connected to the lower portion of the wheel frame (44), a motor mechanism (46) for driving the wheel (45) to rotate being mounted on the side of the wheel frame (44), a positioning pin hole (47) being provided on the top of the wheel frame (44), a matching pin hole (48) being provided on the chassis of the grinding machine body (1) corresponding to the positioning pin hole (47), the positioning pin hole (47) and the matching pin hole (48) being connected via a positioning pin (49), and the wheel frame (44) and the chassis of the grinding machine body (1) being locked via at least two bolts.

7. A method for operating a grinding machine with a quick-detachable grinding head, using the grinding machine with a quick-detachable grinding head according to any one of claims 4 or 5, characterized in that: When the grinding head (2) needs to be replaced or the grinding head (2) needs to be separated from the grinding machine body (1): Step 1: Pull out the pins (11) in the hinged seats of the left and right grinding heads (2) and remove the eccentric bushings (10), thereby releasing the connection between the connecting bracket (6) and the grinding head (2); Step 2: Start the lifting cylinder (19), which drives the front side of the connecting bracket (6) to lift up, so that the connecting bracket (6) and the grinding head (2) are completely separated; Step 3: Fix the front guide wheel assembly (24) to the front side of the connecting bracket (6), then reset the jacking cylinder (19), and the telescopic end of the jacking cylinder (19) is separated from the grinding head (2) from the upper end of the clearance hole (20), while the front guide wheel (26) is against the ground; Step 4: Fix the rear guide wheel assembly (31) to the rear side of the grinding machine body (1); Step 5: Remove the grinder body (1); Step 6: Insert the plug pins (42) on the left and right grinding head plug brackets (35) into the corresponding shaft sleeve mounting holes (9) and the plug sleeve (41) on the same side, and then lift the plug plate (39) by the lifting rod (38) to drive the grinding head (2) off the ground, so that the grinding head (2) can be moved.

Images