Connecting structure of floor grinding machine and floor grinding machine

Abstract

The utility model relates to a connecting structure of a floor grinding machine and the floor grinding machine, and relates to the technical field of building construction related equipment. The connecting structure of the floor grinding machine comprises a first connecting plate connected with a machine body of the floor grinding machine and a second connecting plate used for installing and connecting a grinding disc. A connecting shaft used for connecting the first connecting plate and the second connecting plate is arranged between the first connecting plate and the second connecting plate and sleeved with a buffering rubber sleeve. A connecting hole is formed in the first connecting plate and / or the second connecting plate, the connecting shaft is inserted into the connecting hole, and the buffering rubber sleeve is located between the peripheral face of the connecting shaft and the hole wall of the connecting hole. The utility model further discloses a floor grinding machine with the connecting structure. The machine body and the grinding disc of the floor grinding machine are connected through the connecting shaft sleeved with the buffering rubber sleeve, the buffering effect is effectively achieved, vibration of the whole machine is greatly reduced, the service life of the machine is prolonged, and the operation comfort of the machine is improved.

Description

Technical Field

[0001] The present application relates to the technical field of equipment related to construction, and in particular to a connection structure of a floor grinder and a floor grinder. Background Art

[0002] At present, when building parks, squares or factories, floor grinding is usually required. Floor grinding refers to the grinding of concrete, stone, terrazzo or epoxy floors. By effectively grinding terrazzo, concrete surface or epoxy mortar layer and old epoxy floor, the floor surface is made cleaner, brighter and smoother. Floor grinder is one of the commonly used related equipment for floor grinding. When grinding the floor, floor grinder is light, flexible and efficient. It is an ideal equipment for floor engineering.

[0003] A floor grinder usually includes a body with walking wheels and a grinding disc connected to the body. The grinding disc rotates under the drive of a motor to grind the floor. Electrical components such as an operating table and a controller are arranged on the body.

[0004] For example, the related technology discloses a floor grinder, which includes a frame and a grinding mechanism installed on the frame, a traveling mechanism is arranged on the frame, the traveling mechanism includes a driving wheel and a supporting wheel installed on the frame, a mounting frame for mounting a grinding assembly is installed on the frame, one end of the mounting frame is hinged to the frame, the grinding mechanism is installed on the other end of the mounting frame, a pushing member is arranged between the mounting frame and the frame, the pushing member pushes the mounting frame to rotate around the hinged position with the frame to lift the grinding mechanism, and a control mechanism for controlling the operation of the driving wheel, the grinding mechanism and the pushing member is installed on the side of the frame away from the grinding mechanism.

[0005] In the above-mentioned floor grinder, the frame and the mounting frame for installing the grinding assembly are connected by bolts, and the torque between the two is rigidly transmitted. When the grinding disc in the grinding mechanism rotates rapidly, a large friction force is generated with the ground, which will generate a large vibration and be directly transmitted to the frame, affecting the operator's experience and seriously affecting the service life of various components installed on the machine body. Utility Model Content

[0006] In order to reduce the vibration of a floor grinder body and thus increase the service life of the floor grinder, the present application provides a connection structure of a floor grinder and a floor grinder.

[0007] The connection structure of the floor grinder provided in this application adopts the following technical solution:

[0008] A connecting structure of a floor grinding machine, comprising a first connecting plate connected to the body of the floor grinding machine and a second connecting plate for mounting and connecting a grinding disc; a connecting shaft for connecting the two is arranged between the first connecting plate and the second connecting plate, and a buffer rubber sleeve is sleeved on the connecting shaft; connecting holes are formed in the first connecting plate and / or the second connecting plate, the connecting shaft is inserted into the connecting holes, and the buffer rubber sleeve is located between the outer peripheral surface of the connecting shaft and the hole wall of the connecting holes.

[0009] The rotating grinding disc is used for grinding and polishing the floor surface, and it will generate large vibrations during operation. When the operator controls the body, if the vibration is too large, it will affect the comfort of the operator during use, and will also cause damage to each component, affecting its service life. By adopting the above technical solution, the connecting shaft sleeved with a buffer rubber sleeve connects the body of the floor grinding machine and the grinding disc, which can effectively play a buffering role, weaken the vibration of the grinding disc transmitted to the body, thereby greatly reducing the vibration of the whole machine and improving its service life and operation comfort.

[0010] Optionally, the first connecting plate has an extension portion located above the grinding disc, the connecting hole is formed in the extension portion, the second connecting plate is also provided with the connecting hole, and both ends of the buffer rubber sleeve and the connecting shaft are respectively inserted into the connecting hole of the extension portion and the connecting hole of the second connecting plate.

[0011] By adopting the above technical solution, adding an extension portion on the first connecting plate and arranging a connecting hole here facilitates the assembly and connection of the whole machine, and enhances the stability of the connecting shaft. At the same time, the buffer rubber sleeve can play a buffering role at both connection points at the extension portion and the second connecting plate, enabling the buffer rubber sleeve to better play its role and further reducing the vibration generated during the grinding process.

[0012] Optionally, the first connecting plate and the second connecting plate are abutted against each other, the connecting holes of the extension portion and the second connecting plate are coaxially arranged, and end caps are detachably fixed to the sides of the extension portion and the second connecting plate facing away from each other. The end caps are fixed at the orifice of the connecting hole to close the orifice of the connecting hole and limit the axial movement of the connecting shaft.

[0013] By adopting the above technical solution, it can be ensured that the connecting shaft and the buffer rubber sleeve can be accurately positioned between the first connecting plate and the second connecting plate. Furthermore, detachable end caps are designed on the sides of the extension portion and the second connecting plate facing away from each other. These end caps are fixed at the orifice of the connecting hole, which can not only close the connecting hole to prevent foreign objects from entering the connecting hole, but also limit the axial movement of the connecting shaft to prevent the connecting shaft and the buffer rubber sleeve from falling out of the connecting hole, thereby further enhancing the stability and reliability of the whole structure.

[0014] Optionally, the connection structure further includes a fixing plate fixedly connected to the grinding disc housing. A vertical plate is fixedly provided on the fixing plate. The second connecting plate is arranged vertically, and the lower end of the second connecting plate is fixedly connected to the vertical plate. The connection hole is located at the upper end of the second connecting plate.

[0015] By adopting the above technical solution, it is convenient for the second connecting plate to be fixedly connected to the grinding disc housing through the vertical plate, with low processing cost of parts, convenient assembly and firm connection.

[0016] Optionally, the fixing plate is horizontally abutted against the upper side of the grinding disc housing and the two are connected by a plurality of first connecting bolts. The lower end of the vertical plate is welded to the fixing plate, and the upper end of the vertical plate is fixedly connected to the second connecting plate by a plurality of second connecting bolts.

[0017] There are at least four first connecting bolts, which fix the fixing plate to the upper side of the grinding disc housing around the fixing plate. Three second connecting bolts can be selected and distributed in a triangle; by adopting the above technical solution, a more stable and reliable connection is provided for the second connecting plate, ensuring that during the grinding process of the machine, the second connecting plate will not shift or deform due to vibration or other external forces, thus ensuring that the buffer rubber sleeve can continuously and effectively play its role.

[0018] Optionally, a jack is provided in the middle of the fixing plate, and a convex strip is provided at the lower end of the vertical plate. The convex strip is inserted into the jack.

[0019] By adopting the above technical solution, the convex strip is inserted into the jack, further limiting and fixing the connection between the fixing plate and the vertical plate, and ensuring the firmness of the connection between the two.

[0020] Optionally, the number of the first connecting plates is two, and the two first connecting plates are arranged in parallel at intervals; the number of the second connecting plates is also two, and they are symmetrically fixedly arranged on both sides of the central axis of the grinding disc housing. Each of the two second connecting plates is correspondingly connected to one of the first connecting plates, and the two second connecting plates are clamped between the two first connecting plates.

[0021] By adopting the above technical solution, the two second connecting plates are clamped between the two first connecting plates, limiting the lateral position of the grinding disc housing and ensuring the firmness and reliability of the installation connection of the grinding disc housing.

[0022] Optionally, the connecting shaft is a metal rod, and the buffer rubber sleeve is made of polyurethane, natural rubber, chloroprene rubber, fluorosilicone rubber or nitrile rubber.

[0023] By adopting the above technical solution, the stability and reliability of the connection structure are ensured, and the cost is relatively low, with high cost performance.

[0024] The present application also discloses a floor grinding machine, which includes a body, a grinding disc, a housing, and a driving member for driving the grinding disc to rotate. An operating armrest is provided on the upper side of the body, and traveling wheels are provided at the bottom of the body. The grinding disc is installed in the housing; the body and the housing are connected by the above-mentioned connection structure.

[0025] The body is the main part of the entire device, usually made of metal materials, having good structural strength and stability, and being able to withstand the vibration and pressure during the grinding process. The driving member can be a fuel engine or an electric motor for driving the rotation of the grinding disc. The rotating grinding disc is used for grinding and polishing the floor surface; the operating armrest and the traveling wheels form a manual propulsion system to make the machine move forward stably during use. An operating lever or a handle or control buttons or a touch screen can also be provided on the operating armrest or the body for controlling functions such as starting, stopping, steering, and speed adjustment of the machine. By adopting the above technical solutions, the entire machine is comfortable to operate, has a long service life, and is stable and reliable.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. In the present application, by adding a buffer rubber sleeve on the connecting shaft, when the grinding disc of the floor grinding machine rotates at a high speed, the vibration generated will be effectively absorbed by the buffer rubber sleeve, thereby greatly reducing the vibration transmitted to the body, and further improving the service life of the device and the comfort of the operator.

[0028] 2. In the present application, the second connecting plate is connected by the fixing plate and the vertical plate, and a special fixing structure is designed, making the assembly and connection of the second connecting plate convenient, and stable and reliable.

[0029] 3. In the present application, two groups of first connecting plates and second connecting plates are provided, and the two second connecting plates are clamped between the two first connecting plates, ensuring the stable and reliable installation and connection of the grinding disc housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a three-dimensional structural schematic diagram of the floor grinding machine in the present application.

[0031] Figure 2 is Figure 1 a partial enlarged structural schematic diagram of part A in

[0032] Figure 3 is an exploded structural schematic diagram of the connection structure in the present application.

[0033] In the figure:

[0034] 100, body; 200, housing; 300, driving member; 400, operating armrest; 500, traveling wheels;

[0035] 10. First connecting plate; 11. Extension part;

[0036] 20. Second connecting plate;

[0037] 30. Connecting shaft;

[0038] 40. Buffer rubber sleeve;

[0039] 50. Connecting hole;

[0040] 60. End cover;

[0041] 70. Fixed plate; 71. Insertion hole;

[0042] 80. Vertical plate; 81. Rib;

[0043] 91. First connecting bolt; 92. Second connecting bolt. Specific embodiments

[0044] The following will further elaborate on this application in conjunction with the attached Figure 1 - attached Figure 3 , and make a more detailed description of this application.

[0045] Referring to Figure 1 and Figure 2 as shown, the floor grinding machine in this application includes a machine body, a grinding disc, a housing, and a driving member for driving the grinding disc to rotate. An operation handrail is provided on the upper side of the machine body, traveling wheels are provided at the bottom of the machine body, and the grinding disc is installed in the housing; the machine body and the housing are connected by a flexible connection structure. The machine body is the main part of the entire device, usually made of metal materials, having good structural strength and stability, and capable of withstanding the vibration and pressure during the grinding process. The driving member can be a fuel engine or an electric motor, used to drive the rotation of the grinding disc. The rotating grinding disc is used for grinding and polishing the floor surface; the operation handrail and the traveling wheels form a manual propulsion system, enabling the machine to move forward stably during use. An operation lever or handle or control button or touch screen can also be provided on the operation handrail or the machine body, used to control functions such as starting, stopping, steering, and speed adjustment of the machine.

[0046] Referring to Figure 1 , Figure 2 and Figure 3As shown in the figure, the connection structure in the present application includes a first connecting plate 10 and a second connecting plate 20. There are two first connecting plates 10 and two second connecting plates 20, which are arranged in one-to-one correspondence. The two first connecting plates 10 are arranged in parallel at intervals; the first connecting plate 10 is connected to the body 100 of the floor grinding machine, or the first connecting plate 10 is a part of the body 100. The first connecting plate 10 has an extension 11 located above the grinding disc; the two second connecting plates 20 are symmetrically fixed on both sides of the central axis of the grinding disc housing 200. The two second connecting plates 20 are respectively connected to one first connecting plate 10, and the two second connecting plates 20 are clamped between the two first connecting plates 10. The second connecting plate 20 is used to install and connect the grinding disc housing 200 and the grinding disc; the extension 11 of the first connecting plate 10 abuts against the corresponding second connecting plate 20, and a connecting shaft 30 for connecting the two is arranged between the extension 11 of the first connecting plate 10 and the corresponding second connecting plate 20. A buffer rubber sleeve 40 is sleeved on the connecting shaft 30; a connecting hole 50 is formed on the first connecting plate 10 and / or the second connecting plate 20. The connecting shaft 30 is inserted into the connecting hole 50, and the buffer rubber sleeve 40 is located between the outer peripheral surface of the connecting shaft 30 and the hole wall of the connecting hole 50. That is, at least one of the extension 11 of the first connecting plate 10 and the second connecting plate 20 is provided with a connecting hole 50 for inserting the connecting shaft 30 and the buffer rubber sleeve 40; when only one of the extension 11 of the first connecting plate 10 and the second connecting plate 20 is provided with a connecting hole 50 for inserting the connecting shaft 30 and the buffer rubber sleeve 40, one end of the connecting shaft 30 can be inserted into the connecting hole 50, and the other end is fixedly connected to the extension 11 of the first connecting plate 10 or the second connecting plate 20.

[0047] As a preferred solution, referring to Figure 2 and Figure 3As shown, a connection hole 50 is provided on the extension part 11 of the first connection plate 10 in the present application, and a connection hole 50 is also provided on the second connection plate 20. Both ends of the buffer rubber sleeve 40 and the connection shaft 30 are respectively inserted into the connection hole 50 of the extension part 11 and the connection hole 50 of the second connection plate 20. In this way, the buffer rubber sleeve 40 can play a buffering role at both connection points at the extension part 11 and the second connection plate 20, enabling the buffer rubber sleeve 40 to better play its role and further reducing the vibration generated during the grinding process. The connection hole 50 of the extension part 11 and the connection hole 50 of the second connection plate 20 are coaxially arranged. End caps 60 are detachably fixed to the sides of the extension part 11 and the second connection plate 20 that face away from each other. The end caps 60 are fixed at the orifice of the connection hole 50 to close the orifice of the connection hole 50 and limit the axial movement of the connection shaft 30. In this way, it can be ensured that the connection shaft 30 and the buffer rubber sleeve 40 can be accurately positioned between the first connection plate 10 and the second connection plate 20. Further, end caps 60 are designed on the sides of the extension part 11 and the second connection plate 20 that face away from each other. These end caps 60 are fixed at the orifice of the connection hole 50, which can not only close the connection hole 50 to prevent foreign objects from entering the connection hole 50, but also limit the axial movement of the connection shaft 30 to prevent the connection shaft 30 and the buffer rubber sleeve 40 from falling off from the connection hole 50, thereby further enhancing the stability and reliability of the entire structure.

[0048] Referring to Figure 2 and Figure 3 As shown, a fixing plate 70 is fixed on the grinding disk housing 200 in the present application. The fixing plate 70 is horizontally abutted against the upper side of the grinding disk housing 200 and the two are connected by a plurality of first connection bolts 91. There are at least four first connection bolts 91, and the fixing plate 70 is fixed to the upper side of the grinding disk housing 200 around one week. A vertical plate 80 is fixed on the fixing plate 70. The lower end of the vertical plate 80 is welded to the fixing plate 70. A jack 71 is provided in the middle of the fixing plate 70. The lower end of the vertical plate 80 has a rib 81, and the rib 81 is inserted into the jack 71. Such a matching structure further limits and fixes the connection between the fixing plate 70 and the vertical plate 80 to ensure the stability of their connection. The second connection plate 20 is vertically arranged, and the connection hole 50 on the second connection plate 20 is located at the upper end of the second connection plate 20. The upper end of the vertical plate 80 is fixedly connected to the second connection plate 20 by a plurality of second connection bolts 92. Three second connection bolts 92 can be selected and distributed in a triangle to provide a more stable and reliable connection for the second connection plate 20, ensuring that during the grinding process of the machine, the second connection plate 20 will not shift or deform due to vibration or other external forces, thereby ensuring that the buffer rubber sleeve 40 can continuously and effectively play its role.

[0049] The connecting shaft 30 in this application is a metal rod, and the buffer rubber sleeve 40 is made of polyurethane, natural rubber, neoprene, fluorosilicone rubber or nitrile rubber, ensuring the stable reliability of the connection structure, with low cost and high cost performance.

[0050] The implementation principle is as follows: The rotating grinding disc in this application is used for grinding and polishing the floor surface. When it works, it will generate large vibrations. When the operator controls the fuselage 100, if the vibration is too large, it will affect the comfort of the operator and cause damage to each component, affecting its service life. In this application, the connecting shaft 30 sleeved with the buffer rubber sleeve 40 is used to connect the fuselage 100 of the floor grinding machine and the grinding disc, which can effectively play a buffering role and weaken the vibration of the grinding disc transmitted to the fuselage 100, thus greatly reducing the vibration of the whole machine and improving its service life and operation comfort.

[0051] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A connection structure of a floor grinding machine, characterized in that: The invention comprises a first connecting plate (10) connected to a body (100) of a floor grinding machine and a second connecting plate (20) for mounting a connecting grinding disc; a connecting shaft (30) for connecting the first connecting plate (10) and the second connecting plate (20) is arranged between the first connecting plate (10) and the second connecting plate (20), and a buffer rubber sleeve (40) is sleeved on the connecting shaft (30); a connecting hole (50) is opened on the first connecting plate (10) and / or the second connecting plate (20), the connecting shaft (30) is inserted into the connecting hole (50), and the buffer rubber sleeve (40) is located between the outer peripheral surface of the connecting shaft (30) and the hole wall of the connecting hole (50).

2. The connection structure of the floor grinding machine according to claim 1, characterized in that: The first connecting plate (10) has an extension portion (11) located above the grinding disc, the extension portion (11) is provided with the connecting hole (50), the second connecting plate (20) is also provided with the connecting hole (50), and the two ends of the buffer rubber sleeve (40) and the connecting shaft (30) are respectively inserted into the connecting hole (50) of the extension portion (11) and the connecting hole (50) of the second connecting plate (20).

3. The connection structure of the floor grinding machine according to claim 2, characterized in that: The first connecting plate (10) is in contact with the second connecting plate (20), the connecting hole (50) of the extension portion (11) and the connecting hole (50) of the second connecting plate (20) are coaxially arranged, and the side of the extension portion (11) and the second connecting plate (20) opposite to each other are both detachably fixedly connected with an end cover (60), and the end cover (60) is fixedly arranged at the opening of the connecting hole (50) to close the opening of the connecting hole (50) and limit the axial movement of the connecting shaft (30).

4. The connection structure of the floor grinding machine according to claim 2, characterized in that: The connection structure also includes a fixing plate (70) fixedly connected to the grinding disc cover (200), a vertical plate (80) fixedly provided on the fixing plate (70), the second connecting plate (20) being vertically arranged, the lower end of the second connecting plate (20) being fixedly connected to the vertical plate (80), and the connecting hole (50) being located at the upper end of the second connecting plate (20).

5. The connection structure of the floor grinding machine according to claim 4, characterized in that: The fixed plate (70) is horizontally abutted against the upper side of the grinding disc cover (200) and the two are connected via a plurality of first connecting bolts (91); the lower end of the vertical plate (80) is welded to the fixed plate (70), and the upper end of the vertical plate (80) is fixedly connected to the second connecting plate (20) via a plurality of second connecting bolts (92).

6. The connection structure of the floor grinding machine according to claim 5, characterized in that: The middle of the fixed plate (70) is provided with an insertion hole (71), and the lower end of the vertical plate (80) has a convex strip (81), and the convex strip (81) is inserted into the insertion hole (71).

7. The connection structure of the floor grinding machine according to any one of claims 1 to 6, characterized in that: There are two first connecting plates (10) and the two first connecting plates (10) are arranged in parallel and spaced apart; there are also two second connecting plates (20) and they are symmetrically fixed on both sides of the central axis of the grinding disc cover (200); the two second connecting plates (20) are respectively connected to one first connecting plate (10) and the two second connecting plates (20) are clamped between the two first connecting plates (10).

8. The connection structure of the floor grinding machine according to claim 1, characterized in that: The connecting shaft (30) is a metal rod, and the buffer rubber sleeve (40) is made of polyurethane, natural rubber, chloroprene rubber, fluorosilicone rubber or nitrile rubber.

9. A floor grinding machine, comprising a machine body (100), a grinding disc, a cover (200) and a driving member (300) for driving the grinding disc to rotate, wherein an operating armrest (400) is arranged on the upper side of the machine body (100), a running wheel (500) is arranged on the bottom of the machine body (100), and the grinding disc is installed in the cover (200); characterized in that: The fuselage (100) and the cover shell (200) are connected via a connection structure as described in any one of claims 1 to 8.

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