Guide wheel supporting and overturning device of floor grinding machine

Abstract

The utility model discloses a guide wheel supporting turnover device of a floor grinding machine. The guide wheel supporting turnover device comprises an upper limiting arm, a lower jacking arm and a turnover frame. One end of the upper limiting arm and one end of the lower jacking arm are hinged to a supporting position above the ground through a hinged support in a transverse posture, the overturning force arm of the lower jacking arm is larger than that of the upper limiting arm, the other end of the upper limiting arm is connected with the overturning frame in a limiting and hanging mode, and the other end of the lower limiting arm is hinged to the overturning frame in a jacking mode. A guide wheel is rotationally supported at the bottom of the overturning frame, and one side of the overturning frame is fixedly connected with a floor grinding machine through a connecting bolt. The turnover device effectively solves the problems that an existing turnover structure is inconvenient to operate, too large in balance weight and prone to toppling and sliding. And the overturning structure is small, light and convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of floor grinding equipment, in particular to a guide wheel support turning device of a floor grinding machine. Background Art

[0002] Currently, when inspecting and repairing a grinder, it is necessary to lift the head of the grinder to prevent the head of the grinder from bumping into protruding obstacles and to facilitate personnel to replace or repair damaged parts.

[0003] Especially when the head of the floor grinder is being repaired, the bottom of the head of the floor grinder needs to be facing the maintenance personnel. During this process, the center of gravity of the floor grinder will shift, which may cause accidents such as tipping and slipping. Therefore, when the grinder needs to be transferred or repaired in the prior art, the grinder is usually manually laid down. However, this method is still prone to mechanical injuries and damage to the floor grinder.

[0004] In summary, how to design a flipping device to solve the above-mentioned technical problems, facilitate the lifting and flipping of the machine head of the auxiliary floor grinder, and facilitate manual maintenance of the machine head has become a technical problem that needs to be urgently solved by people in this field. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a guide wheel support flip device for a floor grinder, which effectively solves the problems of the existing flip structure being inconvenient to operate, too heavy a counterweight, and prone to tipping and slipping. The flip structure is made compact and light, and is easy to install and maintain.

[0006] A guide wheel supporting flipping device for a floor grinder comprises an upper limit arm, a lower top support arm and a flipping frame; one end of the upper limit arm and the lower top support arm are hingedly connected to a support position above the ground in a horizontal posture through a hinge seat, and the flipping force arm of the lower top support arm is greater than the flipping force arm of the upper limit arm, wherein the other end of the upper limit arm is limit-hung and connected to the flipping frame, and the other end of the lower limit arm is hingedly supported on the flipping frame; the bottom rotation support of the flipping frame is provided with a guide wheel, and one side of the flipping frame is fixedly connected to the floor grinder through a connecting bolt.

[0007] Preferably, a limiting column is fixedly provided on one side wall of the upper limit arm; a limiting frame is fixedly provided on the flip frame, and the limiting frame is slidably and limitingly sleeved on the outside of the limiting column.

[0008] Preferably, the lower limit arm comprises an oil cylinder, a cylinder body end of the oil cylinder is hingedly connected to a hinge seat, a piston end of the oil cylinder is hingedly supported on a side wall of the flip frame, and position sensors for detecting the horizontality of the oil cylinder are fixedly provided at both ends of the oil cylinder body.

[0009] The advantages and technical effects of the utility model are:

[0010] The utility model discloses a guide wheel supporting and flipping device for a floor grinder. Firstly, an upper limit arm is used to hang and constrain the upper part of the floor grinder during the flipping process, and the torsion limit function of the upper limit arm and the flipping frame is realized through the sliding limit of the limit frame and the limit column. Secondly, the oil cylinder of the lower support arm provides support power for the lower part of the flipping frame. At the initial stage of support, the guide wheel contacts the ground to bear part of the dead weight of the floor grinder and the flipping device. At the later stage of support, the guide wheel is off the ground, and the oil cylinder pushes the limit column in the limit frame to reach the rotational hanging relationship after reaching the limit position, thereby providing lifting and flipping power for the head of the floor grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the front view of the utility model (posture one);

[0012] Figure 2 This is the front view of the utility model (posture 2);

[0013] Figure 3 This is the front view of the utility model (posture three);

[0014] Figure 4 This is the front view of the utility model (posture 4);

[0015] In the figure: 1-lower support arm; 2-upper limit arm; 3-limit frame; 4-limit column; 5-turn frame; 6-floor grinder; 7-guide wheel; 8-hinge seat; 9-position sensor. DETAILED DESCRIPTION

[0016] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings. It should be noted that the embodiments are descriptive, not restrictive, and the protection scope of the utility model cannot be limited thereby.

[0017] A guide wheel supporting flipping device for a floor grinder comprises an upper limit arm 2, a lower top support arm 1 and a flipping frame 5; one end of the upper limit arm and the lower top support arm are hingedly connected to a support position above the ground in a horizontal posture through a hinge seat 8, and the flipping force arm of the lower top support arm is greater than the flipping force arm of the upper limit arm, wherein the other end of the upper limit arm is limit-hung and connected to the flipping frame, and the other end of the lower limit arm is hingedly supported on the flipping frame; a guide wheel 7 is rotatably supported at the bottom of the flipping frame, and one side of the flipping frame is fixedly connected to the floor grinder 6 by a connecting bolt.

[0018] Preferably, a limiting column 4 is fixedly provided on one side wall of the upper limit arm; a limiting frame 3 is fixedly provided on the flip frame, and the limiting frame is slidably and limitingly sleeved on the outside of the limiting column.

[0019] Preferably, the lower limit arm comprises an oil cylinder, the cylinder body end of the oil cylinder is hingedly connected to the hinge seat, the piston end of the oil cylinder is hingedly supported on the side wall of the flip frame, and position sensors 9 for detecting the horizontality of the oil cylinder are fixedly provided at both ends of the oil cylinder body.

[0020] In order to more clearly illustrate the specific implementation of the utility model, an embodiment is provided below:

[0021] The utility model discloses a guide wheel supporting flipping device for a floor grinding machine, which solves the problems of inconvenient operation and excessive counterweight of the existing flipping structure, making the flipping structure compact and light, and convenient for installation and maintenance.

[0022] When working, the flip device performs Figures 1 to 4 The flipping action is that the oil cylinder of the lower top support arm first pushes the flip frame to move horizontally until the limit column is supported at the limit position inside the limit frame, and then the upper limit arm, the limit column and the limit frame apply a left limit pulling force to the upper part of the flip frame. During this process, the guide wheel is supported on the ground; as the oil cylinder piston rod continues to extend, the guide wheel leaves the ground, and the flip frame is not only lifted, but also performs a flipping action to Figure 4 .

[0023] It should be noted that the position sensor of the present invention is a mature product in the prior art, which is used to detect the horizontality of the cylinder and is only used in the initial posture (such as Figure 1 as shown) and the flip limit posture (as shown Figure 4 When the oil cylinder is in a horizontal position, the turning start position and the turning end position of the floor grinder are positioned with this horizontal position of the oil cylinder.

[0024] Finally, all the undescribed parts of the present invention adopt mature products and mature technical means in the prior art.

[0025] The method disclosed and proposed by the utility model can be realized by those skilled in the art by referring to the content of this article and appropriately changing the conditions, routes and other links. Although the method and preparation technology of the utility model have been described by preferred embodiments, relevant technical personnel can obviously modify or recombine the method and technical route of this article without departing from the content, spirit and scope of the utility model to achieve the final preparation technology. It is particularly important to point out that all similar substitutions and modifications are obvious to those skilled in the art, and they are all deemed to be included in the spirit, scope and content of the utility model. And it should be understood that for those of ordinary skill in the art, improvements or changes can be made according to the above description, and all these improvements and changes should belong to the scope of protection of the claims attached to the utility model.

Claims

1. A guide wheel support turning device for a floor grinding machine, characterized in that: It includes an upper limit arm, a lower support arm and a flip frame; one end of the upper limit arm and the lower support arm are hingedly connected to a support position above the ground in a horizontal posture through a hinge seat, and the flipping force arm of the lower support arm is greater than the flipping force arm of the upper limit arm, wherein the other end of the upper limit arm is limit-hung and connected to the flip frame, and the other end of the lower limit arm is hinged to support the flip frame; the bottom rotation support of the flip frame is provided with a guide wheel, and one side of the flip frame is fixedly connected to the floor grinder by a connecting bolt.

2. The guide wheel support turning device of a floor grinding machine according to claim 1, characterized in that: A limiting column is fixedly arranged on one side wall of the upper limit arm; a limiting frame is fixedly arranged on the flip frame, and the limiting frame is slidably and limitedly sleeved on the outside of the limiting column.

3. The guide wheel support turning device of a floor grinding machine according to claim 1, characterized in that: The lower limit arm comprises an oil cylinder, the cylinder body end of the oil cylinder is hingedly connected to the hinge seat, the piston end of the oil cylinder is hingedly supported on the side wall of the flip frame, and position sensors for detecting the horizontality of the oil cylinder are fixedly arranged at both ends of the oil cylinder body.

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