Hydraulic lifting gear box structure of floor grinding machine

Abstract

The utility model discloses a hydraulic lifting gear box structure of a floor grinding machine, which belongs to the technical field of floor grinding equipment and comprises a machine body, a rotating shaft is mounted on the upper portion of the machine body in a swinging manner, a swinging frame is rotatably mounted on the machine body through the rotating shaft, and a motor gear box is fixedly connected onto the swinging frame. A grinding disc is fixedly connected to a rotor of the motor gearbox, an oil cylinder is connected between the swing frame and the machine body, the upper end of the oil cylinder is rotationally connected with the swing frame, and the lower end of the oil cylinder is rotationally connected with the machine body. And rollers are mounted at the lower part of the machine body. And universal wheels are mounted at the lower part of the machine body. The upper portion of the machine body is fixedly connected with a connecting frame. The driving oil cylinder is shortened, the swing frame is pulled by the oil cylinder to swing downwards, the motor gear box is driven by the swing frame to descend, the grinding disc is driven by the motor gear box to descend and make contact with the ground, the grinding disc is driven by the motor gear box to rotate, and grinding of the grinding disc along the ground is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of floor grinding equipment, and particularly relates to a hydraulic lifting gearbox structure of a floor grinding machine. Background Technique

[0002] Floor grinders are mainly used for grinding the ground, and can effectively grind terrazzo, the surface layer of concrete, epoxy mortar layer, and old epoxy floors, etc.

[0003] Since the grinding discs of some grinders always remain in contact with the ground, when the grinding discs are stationary and in contact with the ground, the frictional force with the ground is relatively large, making it difficult to move the position, and the additional wear is relatively large, thus resulting in a relatively low overall practicality of some grinders.

[0004] Therefore, we propose a hydraulic lifting gearbox structure of a floor grinding machine to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problem of relatively low overall practicality of some grinders, and to propose a hydraulic lifting gearbox structure of a floor grinding machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A hydraulic lifting gearbox structure of a floor grinding machine, including a machine body, a rotating shaft is swingably installed on the upper part of the machine body, a swing frame is rotatably installed on the machine body through the rotating shaft, a motor gearbox is fixedly connected to the swing frame, a grinding disc is fixedly connected to the rotor of the motor gearbox, an oil cylinder is connected between the swing frame and the machine body, the upper end of the oil cylinder is rotatably connected to the swing frame, and the lower end of the oil cylinder is rotatably connected to the machine body. Drive the oil cylinder to shorten, use the oil cylinder to pull the swing frame to swing downward, drive the motor gearbox to descend through the swing frame, drive the grinding disc to descend through the motor gearbox, make the grinding disc contact the ground, and drive the grinding disc to rotate by using the motor gearbox to facilitate grinding the ground along the ground.

[0008] Preferably, rollers are installed at the lower part of the machine body. Use the rollers to support the machine body to roll along the ground and reduce the moving resistance of the machine body.

[0009] Preferably, universal wheels are installed at the lower part of the machine body. Use the universal wheels to conveniently change the moving direction of the machine body.

[0010] Preferably, a connecting frame is fixedly connected to the upper part of the machine body. It is convenient to externally connect a trailer through the connecting frame.

[0011] Preferably, the swing frame includes a frame body and a first ear plate, and the first ear plate is rotatably connected to the frame body. When the oil cylinder extends, the frame body is lifted by the oil cylinder, and the motor gearbox is lifted by the frame body, so that the grinding disc is lifted. Similarly, when the oil cylinder shortens, the grinding disc is lowered to contact the ground, which is convenient for controlling the lifting and lowering of the grinding disc.

[0012] Preferably, a second ear plate is fixedly connected to the lower part of the oil cylinder. The second ear plate facilitates the rotational connection between the oil cylinder and the machine body.

[0013] In summary, the technical effects and advantages of the present utility model are as follows:

[0014] 1. Drive the oil cylinder to shorten, use the oil cylinder to pull the swing frame to swing downward, drive the motor gearbox to descend through the swing frame, drive the grinding disc to descend through the motor gearbox, make the grinding disc contact the ground, and use the motor gearbox to drive the grinding disc to rotate, which is convenient for the grinding disc to grind along the ground.

[0015] 2. When the oil cylinder extends, the frame body is lifted by the oil cylinder, and the motor gearbox is lifted by the frame body, so that the grinding disc is lifted. Similarly, when the oil cylinder shortens, the grinding disc is lowered to contact the ground, which is convenient for controlling the lifting and lowering of the grinding disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the lifting state of the grinding disc of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the unfolded swing frame and oil cylinder of the present utility model;

[0018] Figure 3 is a schematic structural diagram of the descending state of the grinding disc of the present utility model;

[0019] Figure 4 is a schematic structural diagram of the contracted swing frame and oil cylinder of the present utility model.

[0020] In the figure: 1, rotating shaft; 2, swing frame; 3, oil cylinder; 4, machine body; 5, grinding disc; 6, second ear plate; 7, motor gearbox; 8, universal wheel; 9, roller; 10, connecting frame; 21, frame body; 22, first ear plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments.

[0022] Refer to Figure 1 、 2, 3, and 4, a hydraulic lifting gearbox structure for a floor grinding machine, comprising a machine body 4. A rotating shaft 1 is swingably installed on the upper part of the machine body 4. The machine body 4 is rotatably installed with a swing frame 2 through the rotating shaft 1. A motor gearbox 7 is fixedly connected to the swing frame 2. A grinding disc 5 is fixedly connected to the rotor of the motor gearbox 7. An oil cylinder 3 is connected between the swing frame 2 and the machine body 4. The upper end of the oil cylinder 3 is rotatably connected to the swing frame 2, and the lower end of the oil cylinder 3 is rotatably connected to the machine body 4.

[0023] Referring to Figure 1 and 3 , a roller 9 is installed at the lower part of the machine body 4. The machine body 4 rolls along the ground through the roller 9.

[0024] Referring to Figure 1 and 3 , a caster 8 is installed at the lower part of the machine body 4. The moving direction of the machine body 4 is changed by using the caster 8.

[0025] Referring to Figure 1 and 3 , a connecting frame 10 is fixedly connected to the upper part of the machine body 4. The connecting frame 10 is used to connect an external vehicle body.

[0026] Referring to Figure 1 , 2 , 3, and 4, the swing frame 2 includes a frame body 21 and a first ear plate 22. The oil cylinder 3 is rotatably connected to the frame body 21 through the first ear plate 22. The frame body 21 is rotatably connected to the machine body 4 through the rotating shaft 1. The motor gearbox 7 is fixedly connected inside the frame body 21. The first ear plate 22 is rotatably connected to the frame body 21. When the oil cylinder 3 extends, the frame body 21 is lifted by the oil cylinder 3, and the motor gearbox 7 is lifted by the frame body 21, so that the grinding disc 5 is lifted. Similarly, when the oil cylinder 3 shortens, the grinding disc 5 is lowered to contact the ground.

[0027] Referring to Figure 1 , 2 , 3, and 4, a second ear plate 6 is fixedly connected to the lower part of the oil cylinder 3. The second ear plate 6 is rotatably connected to the machine body 4.

[0028] Working principle: Drive the oil cylinder 3 to shorten. Use the oil cylinder 3 to pull the swing frame 2 to swing downward. Drive the motor gearbox 7 to descend through the swing frame 2. Drive the grinding disc 5 to descend through the motor gearbox 7, so that the grinding disc 5 contacts the ground. Drive the grinding disc 5 to rotate by using the motor gearbox 7 to realize grinding of the grinding disc 5 along the ground.

[0029] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the utility model.

[0030] In the description, the application direction of the prior art that is well-known to those skilled in the art and has not been changed for the utility model is briefly mentioned, and it is combined with the utility model to form a complete technology; the well-known technology to those skilled in the art is avoided from being overly popularized to assist those skilled in the art to quickly understand the main content of the utility model.

Claims

1. A hydraulic lifting gearbox structure for a floor grinding machine, characterized in that: The invention comprises a machine body (4), the upper part of which is swingably mounted with a rotating shaft (1), the machine body (4) being rotatably mounted with a swing frame (2) via the rotating shaft (1), the swing frame (2) being fixedly connected with a motor gear box (7), the rotor of the motor gear box (7) being fixedly connected with a grinding disc (5), an oil cylinder (3) being connected between the swing frame (2) and the machine body (4), the upper end of the oil cylinder (3) being rotatably connected with the swing frame (2), and the lower end of the oil cylinder (3) being rotatably connected with the machine body (4).

2. The hydraulic lifting gearbox structure of a floor grinding machine according to claim 1 is characterized in that: A roller (9) is installed at the lower part of the machine body (4).

3. The hydraulic lifting gearbox structure of a floor grinding machine according to claim 1 is characterized in that: Universal wheels (8) are installed at the lower part of the machine body (4).

4. The hydraulic lifting gearbox structure of a floor grinding machine according to claim 1 is characterized in that: A connecting frame (10) is fixedly connected to the upper part of the machine body (4).

5. The hydraulic lifting gearbox structure of a floor grinding machine according to claim 1 is characterized in that: The swing frame (2) comprises a frame body (21) and a first ear plate (22), wherein the first ear plate (22) is rotatably connected to the frame body (21).

6. The hydraulic lifting gearbox structure of a floor grinding machine according to claim 1, characterized in that: A second ear plate (6) is fixedly connected to the lower part of the oil cylinder (3).

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