Adjustable loader direction control mechanism

Abstract

The utility model discloses an adjustable loader direction control mechanism and a using method, and belongs to the technical field of loader direction control mechanism adjustment, the adjustable loader direction control mechanism comprises a mechanism shell, a steering wheel, a direction column and a steering gear connecting structure, and the direction column and the steering gear connecting structure are arranged in the mechanism shell; the lower end of the steering column is connected with the steering gear connecting structure; a column casing is arranged at the end, close to the steering wheel, of the steering column, an instrument support is arranged on the outer side of the column casing, and an instrument assembly is arranged on the instrument support. An air spring structure is further arranged on the outer side of the column casing and can drive the column body to swing to achieve position adjustment. The device provided by the utility model is convenient and quick to adjust the positions of the steering column and the instrument panel, can realize automatic locking after being adjusted in place, is time-saving and labor-saving, is simple and durable in structure, can be frequently used and is not easy to damage, provides multi-directional and multi-angle adjustment of the steering column and the instrument panel for a driver, and ensures the working efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the direction control mechanism of the loader, and particularly relates to an adjustable direction control mechanism of a loader. BACKGROUND

[0002] The statements herein only provide background technology related to the utility model and do not necessarily constitute prior art.

[0003] The loader is a cubic yard construction machine widely used in highway, railway, building, water and electricity, port and mine construction projects, and is mainly used for loading soil, sand, lime and other bulk materials, and is indispensable in the engineering machinery industry.

[0004] The traditional loader only focuses on loading and unloading performance, and the direction control mechanism thereof is mostly of fixed structure, that is, the height and angle of the direction machine and the instrument panel are fixed. This form ignores the feelings of the driver. Since the heights and figures of different drivers are different, the height and angle of the instrument panel and the steering mechanism of the loader cannot be adjusted. For some drivers, this brings great operation trouble to construction operation, increases the fatigue of the operator, reduces the construction quality, affects the work efficiency, and even easily causes safety accidents. Once a safety accident occurs, great economic losses will be caused.

[0005] In the prior art, there is a device for adjusting the height of the direction column of the loader. However, the current device usually uses gear, connecting rod and other mechanical structures to realize adjustment. There are the problems of jamming and inflexibility of the adjustable mechanism after a long time of non-use, and inconvenience in opening the locking mechanism used with the adjustment mechanism after a long time of locking. In addition, the locking mechanism deforms after a long time of frequent use, which slowly reduces the locking force of the locking mechanism and makes locking more and more difficult until failure. Moreover, after the adjustment mechanism and the locking mechanism fail, the direction column and the instrument assembly need to be disassembled, which involves many situations such as shell installation and wire harness connection, and the operation is very troublesome. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a kind of adjustable direction control mechanism of loader, with the function of adjusting the height and angle of the instrument assembly and direction column of loader, and the adjustment operation is convenient and fast, and automatic locking can be realized after adjustment, which saves time and effort, and the structure is simple and durable, and can be used frequently without being damaged, to provide the adjustment of direction column and instrument panel from multiple directions and angles for the driver, improve the work comfort of the driver, and ensure work efficiency.

[0007] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0008] The utility model discloses an embodiment of first aspect provides a kind of adjustable loader direction control mechanism, including mechanism shell, steering wheel, direction column and steering gear connecting structure, the direction column and steering gear connecting structure are arranged in mechanism shell inside;The upper end of the direction column is connected in the steering wheel in cab, the lower end of the direction column is connected steering gear connecting structure;The direction column includes upper column body and lower column body, and the upper column body and lower column body are connected by universal joint;The one end of the direction column close to steering wheel is equipped with column cylinder, and the outside of column cylinder is equipped with instrument support, and instrument assembly is equipped on the instrument support;The column cylinder includes upper column cylinder and lower column cylinder, and the upper column cylinder and lower column cylinder are mutually articulated rotation by two groups of symmetric hinge points, and the position of the two groups of symmetric hinge points corresponds with the position of universal joint;

[0009] The outside of column cylinder is also equipped with gas spring structure, and the upper and lower ends of the gas spring structure are articulated with the outer wall of upper column cylinder and the outer wall of lower column cylinder respectively, and the gas spring structure can drive upper column body to swing relative to lower column body.

[0010] As further technical solutions, the upper end of the upper column body is engaged with the steering wheel by spline, the lower end of the upper column body is connected with the lower column body by universal joint, and the lower end of the lower column body is connected with the steering gear connecting structure.

[0011] As further technical solutions, the lower end of the lower column body is flexibly connected with the upper end of the lower shaft by rubber pad, and the lower end of the lower shaft is connected with the steering gear connecting structure.

[0012] As further technical solutions, the steering gear connecting structure is connected with the rack by a plurality of shock absorbers.

[0013] As further technical solutions, the sidewall of the upper column cylinder is provided with an instrument support fixing plate, the instrument support is connected to the instrument support fixing plate, and the instrument assembly is provided on the instrument support;The sidewall of the lower column cylinder is provided with a lower column cylinder mounting plate, and the lower column cylinder mounting plate is used for fixing the entire direction column.

[0014] As further technical solutions, the gas spring structure includes a handle, a thimble, a piston rod, a thimble seat and a cylinder barrel, and a first piston and a second piston are arranged in the cylinder barrel.

[0015] The handle is connected to the upper end of the thimble, the thimble is slidably arranged in the piston rod, and the lower end of the piston rod extends into the cylinder barrel to connect the first piston;The first piston is provided with a hollow cylindrical structure in the axial direction, the thimble seat is arranged in the hollow cylindrical structure, the lower end of the thimble is connected to the thimble seat, the lower end of the thimble seat is provided with a disc structure penetrating through the first piston, and the diameter of the disc structure is greater than the diameter of the hollow cylindrical structure;The second piston is arranged at a certain distance below the first piston.

[0016] As a further technical scheme, the first piston and the upper part of the cylinder form a first cavity, the first piston and the second piston form a second cavity, the second piston and the lower part of the cylinder form a third cavity, the first cavity and the second cavity are filled with hydraulic oil, and the third cavity is filled with compressed air.

[0017] As a further technical scheme, the handle is provided with a special-shaped groove, and the upper end of the ejector pin is provided with a protruding structure which is clamped with the special-shaped groove of the handle.

[0018] As a further technical scheme, the side of the first piston is provided with a hydraulic oil channel which is communicated with the first cavity, and the ejector pin seat is provided with an annular groove which is communicated with the hydraulic oil channel.

[0019] As a further technical scheme, the first piston is provided with an annular sealing ring at a position in contact with the inner wall of the cylinder.

[0020] The beneficial effects of the above embodiments of the utility model are as follows:

[0021] The adjustable loader direction control mechanism has the functions of adjusting the height and angle of the loader instrument assembly and the direction column, is convenient and fast to adjust, can be automatically locked after adjustment, saves time and effort, has a simple and durable structure, can be frequently used and is not easy to be damaged, provides multi-direction and multi-angle adjustment of the direction column and the instrument panel for the driver, improves the operation comfort of the driver, and guarantees the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings constituting a part of the specification of the utility model are used to provide further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model.

[0023] Figure 1 The assembly structure schematic view of the loader direction column and the instrument panel is provided for the embodiment 1 of the utility model;

[0024] Figure 2 The assembly structure schematic view of the loader direction column and the instrument panel is provided for the embodiment 1 of the utility model;

[0025] Figure 3 The structure schematic of the loader direction column is provided for the embodiment 1 of the utility model Figure 1 ;

[0026] Figure 4 The structure schematic of the loader direction column is provided for the embodiment 1 of the utility model Figure 2 ;

[0027] Figure 5 It is the internal schematic view of the gas spring structure provided in the embodiment 1 of the utility model;

[0028] Figure 6 It is the internal schematic view of the gas spring structure provided in the embodiment 1 of the utility model; Figure 5 It is the local enlarged schematic view of A in the middle.

[0029] In the drawing: 1, steering wheel;2, instrument assembly;3, instrument front package;4, direction column package;5, instrument rear package;6, instrument support;7, upper column cylinder;8, lower column cylinder;9, handle;10, gas spring structure;101, special-shaped slot;102, thimble;103, piston rod;104, first piston;105, sealing ring;106, thimble base;107, cylinder;108, second piston;109, compressed gas;110, hydraulic oil passage;11, lower column body;12, rubber pad;13, sound insulation cotton;14, steering gear connecting structure;15, lower shaft welding;16, spline;17, first hinge point;18, upper hinge point;19, lower hinge point;20, upper column body;21, instrument support fixed plate;22, lower column cylinder mounting plate. DETAILED DESCRIPTION

[0030] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless otherwise specified, all technical and scientific terms used in the utility model have the same meaning as generally understood by those skilled in the art to which the utility model belongs.

[0031] Embodiment 1

[0032] In a typical embodiment of the utility model, a kind of adjustable loader direction control mechanism is provided, including mechanism shell, steering wheel 1, direction column and steering gear connecting structure 14, the direction column and steering gear connecting structure 14 are arranged inside mechanism shell;The upper end of the direction column is connected in the steering wheel 1 in cab, and the lower end of the direction column is connected steering gear connecting structure 14;The direction column includes upper column body 20 and lower column body 11, and the upper column body 20 and lower column body 11 are connected by universal joint;The end of the direction column close to steering wheel 1 is equipped with column cylinder, and the outside of the column cylinder is equipped with instrument support 6, and the instrument support 6 is equipped with instrument assembly 2;The column cylinder includes upper column cylinder 7 and lower column cylinder 8, and the upper column cylinder 7 and lower column cylinder 8 are hingedly rotated by two groups of symmetrical hinge points, and the positions of the two groups of symmetrical hinge points correspond to the positions of universal joint;

[0033] The outside of the column cylinder is also equipped with gas spring structure 10, and the upper and lower ends of the gas spring structure 10 are hingedly connected with the outer wall of the upper column cylinder 7 and the outer wall of the lower column cylinder 8 respectively, and the gas spring structure 10 can drive the upper column body 20 to swing relative to the lower column body 11.

[0034] In the present embodiment, as shown in Figure 2 and Figure 3 the upper column 7 and the lower column 8 are hingedly connected to each other through two sets of symmetrical first hinge points 17, the outer wall of the upper column 7 is provided with an upper extension structure, the upper end of the gas spring structure 10 is hingedly connected to the upper extension structure provided on the outer wall of the upper column 7 through two sets of symmetrical upper hinge points 18, the outer wall of the lower column 8 is provided with a lower extension structure, and the lower end of the gas spring structure 10 is hingedly connected to the lower extension structure provided on the outer wall of the lower column 8 through two sets of symmetrical lower hinge points 19.

[0035] In the present embodiment, as shown in Figure 1 the mechanism housing includes an instrument front enclosure 3, a column enclosure 4, and an instrument rear enclosure 5, which are respectively arranged outside the mechanism to protect the entire mechanism from damage.

[0036] Further, as shown in Figure 4 the upper end of the upper column 20 is engaged with the steering wheel 1 through a spline 16, the lower end of the upper column 20 is connected with the lower column 11 through a universal joint, and the lower end of the lower column 11 is connected with the steering gear connecting structure 14.

[0037] Further, the lower end of the lower column 11 is flexibly connected with the upper end of the lower shaft welding 15 through a rubber pad 12, and the lower end of the lower shaft welding 15 is connected with the steering gear connecting structure 14 through a spline 16.

[0038] In the present embodiment, the steering gear connecting structure 14 is provided with soundproof cotton 13, which can reduce the noise generated when the multiple shock absorbers provided on the steering gear connecting structure 14 are connected with the rack.

[0039] Further, the steering gear connecting structure 14 is connected with the rack through multiple shock absorbers.

[0040] Further, the side wall of the upper column 7 is provided with an instrument support fixing plate 21, the instrument support fixing plate 21 is connected with an instrument support 6, and the instrument support 6 is provided with an instrument assembly 2; the side wall of the lower column 8 is provided with a lower column mounting plate 22, and the lower column mounting plate 22 is used to fix the entire column.

[0041] Further, as shown in Figure 5 and Figure 6 the gas spring structure 10 includes a handle 9, a plunger 102, a piston rod 103, a plunger seat 106, and a cylinder 107, the cylinder 107 is provided with a first piston 104 and a second piston 108;

[0042] The handle 9 is connected with the upper end of the ejector pin 102, the ejector pin 102 is slidably arranged in the inside of the piston rod 103, the lower end of the piston rod 103 extends into the cylinder barrel 107 and is connected with the first piston 104; the first piston 104 is provided with a hollow cylindrical structure in the axial direction, the hollow cylindrical structure is provided with the ejector pin seat 106, the lower end of the ejector pin 102 is connected with the ejector pin seat 106, the lower end of the ejector pin seat 106 is provided with a disc structure penetrating through the first piston 104, and the diameter of the disc structure is greater than that of the hollow cylindrical structure; the second piston 108 is arranged at the lower part of the first piston 104 at a certain distance.

[0043] In the embodiment, the lower end of the piston rod 103 is connected with the first piston 104 through threads, so that the first piston 104 cannot move alone in the inside of the cylinder barrel 107.

[0044] Further, the first piston 104 and the upper part of the cylinder barrel 107 form a first cavity, the first piston 104 and the second piston 108 form a second cavity, the second piston 108 and the lower part of the cylinder barrel 107 form a third cavity, the first cavity and the second cavity are filled with hydraulic oil, and the third cavity is filled with compressed air.

[0045] Further, the handle 9 is provided with a special-shaped groove 101, the upper end of the ejector pin 102 is provided with a protruding structure, and the protruding structure is clamped with the special-shaped groove 101 on the handle 9.

[0046] Further, the side of the first piston 104 is provided with a hydraulic oil channel 110, the hydraulic oil channel 110 is communicated with the first cavity; the ejector pin seat 106 is provided with an annular groove, and the annular groove is communicated with the hydraulic oil channel 110.

[0047] In the embodiment, as shown in the drawings, Figure 5 The first piston 104 is provided as a segmented cylindrical structure, the diameter of the upper segment cylindrical structure of the first piston 104 is smaller than that of the lower segment cylindrical structure, the annular cavity space is formed between the upper segment cylindrical structure and the cylinder barrel 107, the upper segment cylindrical structure is provided with the hydraulic oil channel 110, the annular cavity space is communicated with the hydraulic oil channel 110, the lower segment cylindrical structure is in contact with the inner wall of the cylinder barrel 107, and the annular sealing ring 105 is arranged at the position where the lower segment cylindrical structure is in contact with the inner wall of the cylinder barrel 107, so that the sealing property is ensured.

[0048] In the second aspect of the utility model, a kind of adjustable loader direction control mechanism's use method is provided, comprising:

[0049] When the steering column needs to be adjusted, the handle 9 is rotated to move the plunger 102 and the plunger seat 106 downward, and in the process of moving downward, the disc structure at the lower end of the plunger seat 106 moves downward away from the bottom end face of the first piston 104, the annular groove at the lower end of the plunger seat 106 is communicated with the hydraulic oil channel 110 of the first piston 104, so that the hydraulic oil in the first cavity and the second cavity can flow to each other, the piston rod 103 can move up and down in the first cavity and the second cavity, and the up-down position of the steering wheel 1 is adjusted to achieve the position adjustment of the steering column.

[0050] When the steering column is adjusted to the position, the plunger 102 and the plunger seat 106 move upward under the pressure of the compressed gas 109 in the third cavity, the disc structure at the lower end of the plunger seat 106 moves upward and abuts against the bottom end face of the first piston 104, and the annular groove at the lower end of the plunger seat 106 is closed with the hydraulic oil channel 110 of the first piston 104, so that the hydraulic oil cannot flow between the first cavity and the second cavity, and the position of the steering column is automatically locked.

[0051] The use method of the adjustable loader direction control mechanism provided by the utility model is as follows:

[0052] When the steering column needs to be adjusted, the handle 9 is rotated to move the plunger 102 and the plunger seat 106 downward, and in the process of moving downward, the disc structure at the lower end of the plunger seat 106 moves downward away from the bottom end face of the first piston 104, the annular groove at the lower end of the plunger seat 106 is communicated with the hydraulic oil channel 110 of the first piston 104, so that the hydraulic oil in the first cavity and the second cavity can flow to each other, the piston rod 103 can move up and down in the first cavity and the second cavity, and the up-down position of the steering wheel 1 is adjusted to achieve the position adjustment of the steering column.

[0053] When the steering column is adjusted to the position, the plunger 102 and the plunger seat 106 move upward under the pressure of the compressed gas 109 in the third cavity, the disc structure at the lower end of the plunger seat 106 moves upward and abuts against the bottom end face of the first piston 104, and the annular groove at the lower end of the plunger seat 106 is closed with the hydraulic oil channel 110 of the first piston 104, so that the hydraulic oil cannot flow between the first cavity and the second cavity, and the position of the steering column is automatically locked.

[0054] It should be noted that in the process of moving the handle 9 downward to drive the plunger 102 and the plunger seat 106 to move so that the hydraulic oil in the second cavity and the first cavity can flow to each other, the handle 9 needs to be controlled to be pressed downward all the time, so that the disc structure at the lower end of the plunger seat 106 is not in contact with the bottom end face of the first piston 104 all the time, and the oil passage between the first cavity and the second cavity is communicated.

[0055] In addition, the compressed gas 109 in the third cavity here, because the first piston 104 is connected with the piston rod 103, the first piston 104 will not move alone, and the ejector pin 102 and the ejector pin seat 106 are controlled by the handle 9, the hydraulic oil has incompressibility, the upward pressure provided by the hydraulic oil cannot make the ejector pin and the ejector pin seat or the first piston move upward, and thus cannot affect the angle adjustment.

[0056] The adjustable loader direction control mechanism has the functions of adjusting the height and angle of the loader instrument assembly and the direction column, is convenient and fast to adjust, can be automatically locked after being adjusted in place, saves time and effort, has simple and durable structure, can be frequently used and is not easy to be damaged, provides the adjustment of the direction column and the instrument panel in multiple directions and multiple angles for the driver, improves the operation comfort of the driver, and guarantees the work efficiency.

[0057] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model, and the utility model can have various changes and variations for the person skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable loader directional control mechanism characterized by, The application relates to a steering column and steering gear connecting structure, which comprises a mechanism shell, a steering wheel, a steering column and a steering gear connecting structure, wherein the steering column and the steering gear connecting structure are arranged inside the mechanism shell; the upper end of the steering column is connected with the steering wheel in a cab, and the lower end of the steering column is connected with the steering gear connecting structure; the steering column comprises an upper column body and a lower column body, and the upper column body and the lower column body are connected through a universal joint; one end of the steering column close to the steering wheel is provided with a column cylinder, the outer side of the column cylinder is provided with an instrument support, and the instrument support is provided with an instrument assembly; the column cylinder comprises an upper column cylinder and a lower column cylinder, and the upper column cylinder and the lower column cylinder are hingedly connected and rotated through two groups of symmetrical hinge points, and the positions of the two groups of symmetrical hinge points correspond to the position of the universal joint; the outer side of the column cylinder is further provided with a gas spring structure, the upper and lower ends of the gas spring structure are hingedly connected with the outer wall of the upper column cylinder and the outer wall of the lower column cylinder respectively, and the gas spring structure can drive the upper column body to swing relative to the lower column body.

2. An adjustable loader directional control mechanism as claimed in claim 1 wherein, The upper end of the upper column body is engaged with the steering wheel through a spline, the lower end of the upper column body is connected with the lower column body through a universal joint, and the lower end of the lower column body is connected with the steering gear connecting structure.

3. An adjustable loader directional control mechanism as claimed in claim 2, wherein, The lower end of the lower column body is flexibly connected with the upper end of a lower shaft through a rubber pad, and the lower end of the lower shaft is connected with the steering gear connecting structure.

4. An adjustable loader directional control mechanism as claimed in claim 3 wherein, The steering gear connecting structure is connected with a rack through a plurality of shock absorbers.

5. An adjustable loader directional control mechanism as claimed in claim 1 wherein, An instrument support fixing plate is arranged on the side wall of the upper column cylinder, the instrument support fixing plate is connected with the instrument support, and the instrument support is provided with an instrument assembly; a lower column cylinder mounting plate is arranged on the side wall of the lower column cylinder, and the lower column cylinder mounting plate is used for fixing the whole steering column.

6. An adjustable loader directional control mechanism as claimed in claim 1 wherein, The gas spring structure comprises a handle, a plunger, a piston rod, a plunger seat and a cylinder barrel, and a first piston and a second piston are arranged in the cylinder barrel; the handle is connected with the upper end of the plunger, the plunger is slidably arranged in the piston rod, the lower end of the piston rod extends into the cylinder barrel and is connected with the first piston; the first piston is provided with a hollow cylindrical structure in the axial direction, the hollow cylindrical structure is provided with the plunger seat, the lower end of the plunger is connected with the plunger seat, the lower end of the plunger seat is provided with a disc structure penetrating through the first piston, and the diameter of the disc structure is larger than that of the hollow cylindrical structure; the second piston is arranged at a certain distance below the first piston.

7. An adjustable loader directional control mechanism as claimed in claim 6 wherein, The first piston and the upper part of the cylinder barrel form a first cavity, the first piston and the second piston form a second cavity, and the second piston and the lower part of the cylinder barrel form a third cavity, the first cavity and the second cavity are filled with hydraulic oil, and the third cavity is filled with compressed air.

8. An adjustable loader directional control mechanism as claimed in claim 6, wherein, The handle is provided with a special-shaped groove, the upper end of the plunger is provided with a protruding structure, and the protruding structure is clamped with the special-shaped groove on the handle.

9. An adjustable loader directional control mechanism as claimed in claim 6 wherein, The side of the first piston is provided with a hydraulic oil channel, the hydraulic oil channel is communicated with the first cavity; the plunger seat is provided with an annular groove, and the annular groove is communicated with the hydraulic oil channel.

10. An adjustable loader directional control mechanism as claimed in claim 6, wherein, An annular sealing ring is arranged at the position where the first piston is in contact with the inner wall of the cylinder barrel.

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