Flooring machine front wheel supporting mechanism based on electro-hydraulic and reducer coupling driving

Abstract

The utility model relates to a kind of floor machine front wheel support mechanism based on electric hydraulic pressure and reducer coupling drive, it is characterized by, including: symmetrically arranged fixed beam, the rear end of fixed beam is fixedly connected to the front end of floor machine rack beam;Reducer, its shell is fixedly installed in the side of fixed beam away from rack beam, and the input end of reducer is drivingly connected drive motor;Turnover frame, it is hinged to the front end portion of fixed beam by pin shaft, the axis of pin shaft is perpendicular to floor machine advancing direction;Connecting rod assembly, its two ends are drivingly connected the output shaft of reducer and the crossbeam of turnover frame respectively;Electric hydraulic drive cylinder, its cylinder body is fixedly installed in the front end of turnover frame, and the piston rod end of electric hydraulic drive cylinder is connected walking support wheel.Coupling drive mode reduces the limitation or deficiency possibly existing in single drive mode, so that front wheel support mechanism can maintain excellent performance under various working conditions.

Description

Technical Field

[0001] This utility model belongs to the field of floor machine technology, and particularly relates to a front wheel support mechanism for floor machines based on electro-hydraulic and reducer coupling drive. Background Technology

[0002] In the field of floor grinding machine equipment, the front wheel support mechanism of the machine head plays a crucial role in the ease of movement of the equipment during relocation. Currently, the industry commonly uses foldable (removable) front wheels installed at the front of the machine head to assist in equipment relocation.

[0003] Existing front wheel support systems are mainly divided into two types: manual and semi-automatic. The manual front wheel support system is relatively cumbersome, requiring the operator to first lower the front wheel support, then secure it with a pin, and finally manually rotate the screw to lift the front wheel. While the semi-automatic front wheel support system reduces the manual operation burden to some extent, it still requires the operator to manually lower the front wheel support and secure it with a pin, and then remotely control a hydraulic cylinder to lift the front wheel.

[0004] However, the aforementioned existing technologies have many drawbacks. On the one hand, the operation process is cumbersome, increasing the workload and time costs for operators. Moreover, there is a gap between the pin and the pin hole, and with prolonged use, the wear of the pin and the pin hole will become increasingly serious. This will not only affect the stability and reliability of the front wheel support mechanism but may also lead to safety hazards during equipment relocation. On the other hand, the existing structure has poor strength and cannot meet the usage requirements of the floor grinder under different working conditions. Especially in environments with high dust levels, the lead screw used in the manual front wheel support method is prone to jamming, requiring operators to frequently apply lubricating oil for maintenance. This not only increases the maintenance cost of the equipment but also affects its normal operating efficiency.

[0005] Furthermore, with the development of technology, although there have been some attempts to use hydraulic drive to achieve front wheel flipping, such as the applicant's prior application for a machine head lifting device for a floor grinding machine, publication number: CN222818521U; however, under the actual working conditions of the floor grinding machine, the hydraulic drive system is prone to leakage problems, which not only pollutes the environment around the equipment, but may also affect the normal operation of the equipment and reduce its service life.

[0006] In summary, designing an efficient, stable, and easy-to-operate front wheel support mechanism to solve the technical problems existing in the current front wheel support mechanism, and to assist in lifting the head of the floor grinder to facilitate the relocation of the grinder, has become a key technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] To address the problems existing in the prior art, this utility model provides a front wheel support mechanism for a floor machine based on electro-hydraulic coupling drive and reducer.

[0008] This utility model is implemented as follows: a front wheel support mechanism for a flooring machine based on electro-hydraulic and reducer coupling drive, characterized in that it includes: symmetrically arranged fixed beams, the rear end of which is fixedly connected to the front end of the flooring machine frame beam; a reducer, the housing of which is fixedly installed on the side of the fixed beam away from the frame beam, and the input end of the reducer is connected to a drive motor; a tilting frame, which is hinged to the front end of the fixed beam by a pin, the axis of which is perpendicular to the traveling direction of the flooring machine; a connecting rod assembly, the two ends of which are respectively connected to the output shaft of the reducer and the crossbeam of the tilting frame; and an electro-hydraulic drive cylinder, the cylinder body of which is fixedly installed on the front end of the tilting frame, and the piston rod end of the electro-hydraulic drive cylinder is connected to the traveling support wheel.

[0009] More preferably, the reducer is a dual-output-shaft reducer, with its two output shafts extending symmetrically in the horizontal direction, and each output shaft is connected to a set of connecting rod assemblies.

[0010] More preferably, the linkage assembly includes a first linkage and a second linkage; one end of the first linkage is fixedly sleeved on the output shaft of the reducer, and the other end is hinged to one end of the second linkage through a first hinge pin; the other end of the second linkage is hinged to the crossbeam of the tilting frame.

[0011] More preferably, the front end of the fixed beam is provided with two sets of pin holes spaced apart in the vertical direction, and the pins are detachably inserted into one set of pin holes to adjust the rotation angle range of the tilting frame relative to the fixed beam.

[0012] The advantages and technical effects of this utility model are as follows: Compared with using hydraulic drive alone, the coupled drive front wheel support mechanism of the floor machine has the following significant technical effects:

[0013] 1. More Flexible Angle Adjustment: Through the mechanical transmission of the reducer and linkage assembly, the tilting frame can achieve a wide range of tilting movements, thereby adjusting the angle of the travel support wheels. This mechanical transmission method has high rigidity and stability, ensuring the accuracy and reliability of the tilting frame during adjustment. The extension and retraction of the piston rod of the electro-hydraulic drive cylinder can further fine-tune the height and angle of the travel support wheels, enabling the front wheel support mechanism to adapt to more complex and varied terrains and work requirements.

[0014] 2. Enhanced Support: The reducer increases output torque through speed reduction and torque amplification, enabling the linkage assembly to transmit greater torque to the tilting frame, thereby strengthening the support force of the traveling support wheels. This mechanical transmission method offers high reliability and durability under heavy loads. The piston rod of the electro-hydraulic drive cylinder also provides stable support force during extension and retraction. Especially in situations requiring rapid response or precise control of support force, hydraulic drive offers greater flexibility and accuracy.

[0015] 3. Advantages of Coupled Drive: Coupled drive combines the advantages of mechanical and hydraulic transmission, enabling it to withstand larger loads while achieving precise angle and height adjustments. This drive method improves the adaptability and working efficiency of the front wheel support mechanism. In practical work, the ratio of mechanical to hydraulic transmission can be flexibly adjusted according to specific needs to achieve optimal working results. For example, when rapid height or angle adjustments are required, the electro-hydraulic drive cylinder can be relied upon primarily; while when bearing larger loads or maintaining stable support, the mechanical transmission of the reducer and connecting rod assembly can be relied upon primarily.

[0016] 4. Improve work efficiency and stability: By precisely controlling the angle and height of the tilting frame and the traveling support wheels, the stability and smoothness of the floor machine during operation can be ensured, thereby improving work efficiency and construction quality.

[0017] In summary, the coupled drive method reduces the limitations or shortcomings that may exist in a single drive method, enabling the front wheel support mechanism to maintain excellent performance under various working conditions. Attached Figure Description

[0018] Figure 1 This is the front view of this utility model;

[0019] Figure 2 yes Figure 1 Top view;

[0020] Figure 3 and Figure 4 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 5 This is a schematic diagram of the linkage assembly installation structure;

[0022] Figure 6 This is a schematic diagram of the grinding state of the walking support wheel;

[0023] Figure 7 This is a schematic diagram of the structure with the walking support wheel supporting the replacement of the grinding disc.

[0024] In the diagram, 1 is the fixed beam; 2 is the floor machine frame beam; 3 is the reducer; 31 is the reducer output shaft; 4 is the drive motor; 5 is the tilting frame; 51 is the tilting frame crossbeam; 6 is the pin; 7 is the connecting rod assembly; 71 is the first connecting rod; 72 is the second connecting rod; 73 is the first hinge pin; 8 is the electro-hydraulic drive cylinder; 81 is the piston rod; 9 is the traveling support wheel; and 10 is the pin hole. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0026] Please see Figures 1 to 7 A front wheel support mechanism for a flooring machine based on electro-hydraulic and reducer coupling drive is characterized by comprising: symmetrically arranged fixed beams 1, the rear end of which is fixedly connected to the front end of the flooring machine frame beam 2; a reducer 3, the housing of which is fixedly installed on the side of the fixed beam 1 away from the frame beam 2, and the input end of the reducer 3 is drive-connected to a drive motor 4; a tilting frame 5, which is hinged to the front end of the fixed beam 1 by a pin 6, the axis of the pin 6 being perpendicular to the direction of travel of the flooring machine; a connecting rod assembly 7, the two ends of which are drive-connected to the output shaft 31 of the reducer 3 and the crossbeam 51 of the tilting frame 5, respectively; and an electro-hydraulic drive cylinder 8, the cylinder body of which is fixedly installed at the front end of the tilting frame 5, and the piston rod 81 of the electro-hydraulic drive cylinder 8 is connected to a walking support wheel 9 at its end. The electro-hydraulic drive cylinder 8 is an existing product, mainly comprising an electro-hydraulic cylinder and a guide column. The guide column is connected to the piston rod of the electro-hydraulic cylinder, or is part of the piston rod, providing guidance and support for the movement of the piston rod. The guide column ensures that the piston rod maintains straightness during movement, preventing deflection or swaying.

[0027] Working principle:

[0028] The working principle of the front wheel support mechanism for the flooring machine, based on electro-hydraulic and reducer coupled drive, mainly involves the synergistic effect of electro-hydraulic drive and reducer drive to meet the needs of the flooring machine for grinding, walking, support, and grinding disc replacement. Please refer to [link / reference]. Figure 6 and Figure 7 This embodiment features a dual-head structure; the grinding head is not shown in the figure.

[0029] Reducer drive section: The rotational motion of the drive motor 4 is reduced in speed and increased in torque by the reducer 3 before being transmitted to the output shaft 31 of the reducer 3. The rotational motion of the output shaft 31 is converted into the tilting motion of the tilting frame 5 through the linkage assembly 7. The linkage assembly 7 converts the rotational motion of the output shaft 31 of the reducer 3 into the swinging motion of the tilting frame 5 around the pin shaft 6, thereby realizing the lifting or angle adjustment of the front wheel support mechanism.

[0030] Electro-hydraulic drive system: The electro-hydraulic drive cylinder 8 is fixedly installed at the front end of the tilting frame 5. The extension and retraction of its piston rod 81 directly drives the lifting and lowering of the traveling support wheel 9. By controlling the extension and retraction of the piston rod 81 of the electro-hydraulic drive cylinder 8, the height of the traveling support wheel 9 can be adjusted to adapt to different terrains or work requirements.

[0031] Coupled drive: The reducer drive and the electro-hydraulic drive are mechanically coupled together, acting jointly on the tilting frame 5 and the traveling support wheels 9. This coupled drive method combines the stability of mechanical transmission with the flexibility of hydraulic transmission, enabling the front wheel support mechanism to withstand large loads while also allowing for angle and height adjustments.

[0032] Preferably, the reducer 3 is a dual-output-shaft reducer, with its two output shafts 31 extending symmetrically in the horizontal direction, and each output shaft 31 is connected to a connecting rod assembly 7. The dual-output-shaft design enables symmetrical power transmission, improves the consistency of the tilting frame's movements, enhances the mechanism's stability and load capacity, ensures synchronous operation of the connecting rod assemblies on both sides, and optimizes support and adjustment effects.

[0033] More preferably, the linkage assembly 7 includes a first linkage 71 and a second linkage 72; one end of the first linkage 71 is fixedly sleeved on the output shaft 31 of the reducer 3, and the other end is hinged to one end of the second linkage 72 through a first hinge pin 73; the other end of the second linkage 72 is hinged to the crossbeam 51 of the tilting frame 5. The hinged design of the first and second linkages efficiently converts the rotational motion of the reducer output shaft into the tilting motion of the tilting frame, resulting in a compact structure and reliable transmission, ensuring smooth and precise tilting action.

[0034] Preferably, the front end of the fixed beam 1 is provided with two sets of pin holes 10 spaced apart in the vertical direction. The pins 6 are detachably inserted into one set of pin holes 10 to adjust the rotation angle range of the tilting frame 5 relative to the fixed beam 1. The two sets of vertically spaced pin holes at the front end of the fixed beam allow for detachable insertion of pins to adjust the rotation angle range of the tilting frame, adapting to different terrains and work requirements, and improving the flexibility and adaptability of the mechanism.

[0035] In summary, the coupled drive method reduces the limitations or shortcomings that may exist in a single drive method, enabling the front wheel support mechanism to maintain excellent performance under various working conditions.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A front wheel support mechanism for a floor machine based on electro-hydraulic and reducer coupled drive, characterized in that, include: A symmetrically arranged fixed beam (1) is provided, the rear end of which is fixedly connected to the front end of the floor machine frame beam (2); The reducer (3) has its housing fixedly installed on the side of the fixed beam (1) away from the frame beam (2), and the input end of the reducer (3) is connected to the drive motor (4). The tilting frame (5) is hinged to the front end of the fixed beam (1) by a pin (6), the axis of which is perpendicular to the direction of travel of the floor machine; The connecting rod assembly (7) has its two ends connected to the output shaft (31) of the reducer (3) and the crossbeam (51) of the tilting frame (5); An electro-hydraulic drive cylinder (8) has its cylinder body fixedly installed at the front end of the tilting frame (5), and the piston rod (81) of the electro-hydraulic drive cylinder (8) is connected to the end of the walking support wheel (9).

2. The front wheel support mechanism for a floor machine based on electro-hydraulic and reducer coupling drive according to claim 1, characterized in that: The reducer (3) is a dual-output shaft reducer, with its two output shafts (31) extending symmetrically in the horizontal direction, and each output shaft (31) is connected to a set of the connecting rod assembly (7).

3. The front wheel support mechanism for a floor machine based on electro-hydraulic and reducer coupling drive as described in claim 1 or 2, characterized in that: The linkage assembly (7) includes a first link (71) and a second link (72); One end of the first connecting rod (71) is fixedly sleeved on the output shaft (31) of the reducer (3), and the other end is hinged to one end of the second connecting rod (72) through the first hinge pin (73); The other end of the second link (72) is hinged to the crossbeam (51) of the tilting frame (5).

4. The front wheel support mechanism for a floor machine based on electro-hydraulic and reducer coupling drive according to claim 1, characterized in that: The front end of the fixed beam (1) is provided with two sets of pin holes (10) spaced apart in the vertical direction. The pin (6) is detachably inserted into one set of pin holes (10) to adjust the rotation angle range of the flipping frame (5) relative to the fixed beam (1).

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