CN210286656U

CN210286656U - Lifting structure of driver cab of material grabbing machine

Info

Publication number: CN210286656U
Application number: CN201921339176.4U
Authority: CN
Inventors: 崔永利; 廖建军
Original assignee: Sichuan Bonny Heavy Machinery Co ltd
Current assignee: Sichuan Bonny Heavy Machinery Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-04-10
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses a grab quick-witted cab elevation structure, including strutting arrangement, be used for promoting the promotion platform of driver's cab and be used for connecting the hoisting device who promotes platform and strutting arrangement, two relative sides of hoisting device all are provided with power device, and power device's one end and promotion platform articulate in A point, and the other end articulates in D point with strutting arrangement, and power device drives and promotes the platform and uses D point to make circular motion as the centre of a circle to it keeps the level to promote the platform. The device has simple structure and convenient operation and use.

Description

Lifting structure of driver cab of material grabbing machine

Technical Field

The utility model relates to a mechanical engineering field, concretely relates to grab material machine cab elevation structure.

Background

Due to the working condition, the sight range required by the material grabbing machine in the working process is very large and wide; the existing lifting mechanism of a cab of a material grabbing machine consists of a mounting seat, a parallelogram mechanism, a cab mounting platform and a lifting oil cylinder; the telescopic action of the oil cylinder can lead the parallelogram mechanism to drive the cab to ascend and descend so as to adapt to the change of sight.

However, the existing lifting mechanism is supported by a cylinder, so that the following defects exist in use:

1. the lifting range of the lifting cab is very small due to the problems of installation and strength of one oil cylinder: can only effectively rise by about 1700 mm; the working condition requirement of the full-coverage material grabbing machine cannot be met;

2. the existing lifting mechanism also causes the insufficient distance of forward extension of a cab due to the small stroke of the oil cylinder, and can only reach 420mm, and the existing lifting mechanism can not fully cover the working condition of a material grabbing machine;

3. the cab is not quite stable in the lifting process due to the lifting oil cylinder, and the shaking phenomenon occurs; this creates a very unsafe feeling and hazard to the operator.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that current cab elevation structure not only rises highly can not reach the requirement, and lift process stationarity is relatively poor simultaneously, and the availability factor is lower, and aim at provides grabs material machine cab elevation structure, solves elevation structure's the problem of use.

The utility model discloses a following technical scheme realizes:

grab quick-witted cab elevation structure, including strutting arrangement, be used for promoting the lifting platform of driver's cab and be used for connecting the hoisting device who promotes platform and strutting arrangement, two relative sides of hoisting device all are provided with power device, and power device's one end and promotion platform articulate in A point, and the other end articulates in D point with strutting arrangement, and power device drives and promotes the platform and uses D point to make circular motion as the centre of a circle to it keeps the level to promote the platform.

Furthermore, this device all sets up power device through the both sides at hoisting device, and then when using, the process ability of going up and down is more steady. Simultaneously, current power device sets up one usually, and the setting goes up and down at hoisting device's lower extreme, not only can be unstable like this, the high also great reduction that can of lift, consequently to grabbing the cab that the material machine needs the large field of vision, it is inapplicable, and this device sets up the both sides at hoisting device simultaneously through two power device, not only it is more stable to go up and down, the position that the power device of this device set up simultaneously, at the A point of lift platform and strutting arrangement's D point, such mounted position, can not only effectual improvement height that rises, the distance of the proud of improvement cab that can also be further, more convenient to use.

Specifically, the lifting structure of the grab machine cab comprises a connecting rod and a power arm, wherein one end of the connecting rod is hinged to a point C with a supporting device, and the other end of the connecting rod is hinged to a point A with a lifting platform; one end of the power arm is hinged with the supporting device at the point D, and the other end of the power arm is hinged with the lifting platform at the point B.

The connecting rod and the power arm of the lifting device, the lifting platform and the supporting device form a parallelogram structure, so that when the lifting device is used, the lifting platform can be driven to lift stably, the horizontal lifting can be kept higher, and the use efficiency is higher.

Preferably, in the lifting structure of the cab of the material grabbing machine, two points A, B are located on the same vertical straight line, two points C, D are located on the same vertical straight line, the distance between the two points A, B is 45cm, and the distance between the two points C, D is 45 cm. When the power device is in an original state, an included angle between a straight line where the power device is located and a vertical straight line is 45 degrees.

The setting of such mounted position, the distance of the height that can further improve to rise and the protraction of cab satisfies the use of the cab altitude mixture control of grabbing machine, and application range is wider.

Preferably, the material grabbing machine cab lifting structure is provided with a limiting buffer device for buffering the distance between the lifting device and the supporting device. The limiting buffer device is a nylon buffer pad.

The setting of spacing buffer can be when hoisting device is close to strutting arrangement, effectually cushions it, and further rocking of alleviating the lift in-process has increased operator's security, travelling comfort.

Concretely, grab quick-witted cab elevation structure, the promotion platform is the channel-section steel. The framework of the lifting platform is of a channel steel structure, so that the strength and rigidity of the lifting platform can be greatly improved, and support is provided for stable lifting of a cab.

Concretely, grab quick-witted cab elevation structure, strutting arrangement's lower extreme passes through the bolt fastening on rotary platform. The supporting device is fixed on a rotary platform of the material grabbing machine through bolts and can provide support for the whole lifting mechanism.

Specifically, grab quick-witted cab elevation structure, power device is hydraulic cylinder. And the hydraulic oil cylinder is adopted, so that the operation and the use are convenient.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the lifting structure of the driver cab of the grab machine effectively improves the lifting height and the extending distance of the driver cab, almost fully covers the working condition requirement of the grab machine, and is more convenient to operate and use;

2. the utility model discloses grab quick-witted cab elevation structure, the hydraulic cylinder's of this structure mounted position can effectual improvement cab's lift stationarity, the effectual comfort level that improves the operator;

3. the utility model discloses grab quick-witted cab elevation structure, this device simple structure, convenient to operate and use.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Reference numbers and corresponding part names in the drawings:

1-lifting platform, 2-supporting device, 3-power device, 4-connecting rod, 5-power arm and 6-limiting buffer device.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

As shown in fig. 1, the utility model discloses grab quick-witted cab elevation structure, including strutting arrangement 2, a hoisting device who is used for promoting the promotion platform 1 of driver's cab and is used for connecting promotion platform 1 and strutting arrangement 2, a serial communication port, hoisting device's two relative sides all are provided with power device 3, power device 3's one end and promotion platform 1 articulate in the A point, the other end and strutting arrangement 2 articulate in the D point, power device 3 drives promotion platform 1 and uses the D point to make circular motion as the centre of a circle to promotion platform 1 keeps the level.

Example 2

A lifting structure of a driver cab of a material grabbing machine is characterized in that on the basis of embodiment 1, a lifting device comprises a connecting rod 4 and a power arm 5, one end of the connecting rod 4 is hinged to a point C with a supporting device 2, and the other end of the connecting rod is hinged to a point A with a lifting platform 1; one end of the power arm 5 is hinged with the supporting device 2 at a point D, and the other end is hinged with the lifting platform 1 at a point B.

A. The two points B are positioned on the same vertical straight line, the two points C, D are positioned on the same vertical straight line, the distance between the two points A, B is 45cm, and the distance between the two points C, D is 45 cm. When the power device 3 is in an original state, an included angle between a straight line where the power device 3 is located and a vertical straight line is 45 degrees.

When in use, the existing lifting structure is lifted by about 1700 mm; the forward extension of the cab can only reach 420mm, and under the lifting structure of the device, the rising height of the lifting cab is raised to 2500mm, the forward extension distance of the cab is raised to 725mm, and the sight requirement of most of material grabbing machines can be completely met.

Example 3

Grab quick-witted cab elevation structure, on embodiment 2's basis, be provided with the nylon blotter that is used for buffering the distance between hoisting device and the strutting arrangement 2 on strutting arrangement 2. The lifting platform 1 is a channel steel of 250X 82X 11 mm. The lower end of the supporting device 2 is fixed on the rotary platform through bolts. The power device 3 is a hydraulic oil cylinder.

When the lifting mechanism is used, the two oil cylinders are controlled by a driver to realize synchronous lifting in a cab through pilot control, and the supporting device 2, namely the lifting mechanism mounting seat, is fixed on a rotary platform of the material grabbing machine in a bolt mode to provide basic support for the whole lifting mechanism;

when the cab is lifted, a driver controls the pilot control to enable the piston rods of the double lifting oil cylinders to simultaneously and stably extend out, and the cab lifting platform 1 move circumferentially around a hinge point D at the top of the supporting device 2 under the connection of the lifting device; when the stroke of the lifting oil cylinder reaches the maximum, the cab reaches the highest position. In the process, the double lifting oil cylinders enable the thrust to act on the lifting mechanism more uniformly, and the parallelogram mechanism formed by the lifting device and the connecting platform of the lifting platform ensures that the cab moves in parallel in the whole process, so that the phenomenon that the cab shakes in the whole process is improved.

When the cab descends, a driver controls the pilot control to enable the double-oil-cylinder piston rods to retract stably at the same time, and the cab lifting platform 5 move downwards in a circle around the hinge point of the supporting device 2 under the connection of the lifting device; when the lifting device is in contact with the limit buffer device 6, the cab reaches the lowest position.

In the process, the double lifting oil cylinders enable the thrust to act on the lifting mechanism more uniformly, and the formed parallelogram mechanism ensures that the cab moves in parallel in the whole process, so that the phenomenon that the cab shakes in the whole process is improved. The adoption of the limiting buffer device 6 also avoids the lift cylinder from being impacted, and simultaneously increases the comfort of a driver.

When the lifting device is moved to the horizontal position, the cab reaches the most extended position.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. Grab quick-witted cab elevation structure, including strutting arrangement (2), a hoisting platform (1) that is used for promoting the driver's cab and be used for connecting the hoisting device who promotes platform (1) and strutting arrangement (2), a serial communication port, hoisting device's two relative sides all are provided with power device (3), the one end and the hoisting platform (1) of power device (3) articulate in A point, the other end articulates in D point with strutting arrangement (2), power device (3) drive and promote platform (1) and use D point to make circular motion as the centre of a circle, and promote platform (1) and keep the level.

2. The lifting structure of the cab of the grab machine according to claim 1, wherein the lifting device comprises a connecting rod (4) and a power arm (5), one end of the connecting rod (4) is hinged with the supporting device (2) at a point C, and the other end is hinged with the lifting platform (1) at a point A; one end of the power arm (5) is hinged with the supporting device (2) at a point D, and the other end of the power arm is hinged with the lifting platform (1) at a point B.

3. The cab lifting structure of the grab machine according to claim 2, wherein A, B two points are located on the same vertical line, C, D two points are located on the same vertical line, the distance between A, B two points is 45cm, and the distance between C, D two points is 45 cm.

4. The lifting structure of the cab of the grab machine according to claim 1, wherein when the power device (3) is in the original state, the included angle between the straight line where the power device (3) is located and the vertical straight line is 45 degrees.

5. The lifting structure of the cab of the grab machine according to claim 1, characterized in that the supporting device (2) is provided with a limit buffer device (6) for buffering the distance between the lifting device and the supporting device (2).

6. The lifting structure of the cab of the material grabbing machine according to claim 5, wherein the limiting buffer device (6) is a nylon buffer pad.

7. The grab machine cab lifting structure according to claim 1, wherein the lifting platform (1) is a channel steel.

8. The lifting structure of the cab of the grab machine according to claim 1, wherein the lower end of the supporting device (2) is fixed on the rotary platform by bolts.

9. The cab lifting structure of a grab machine according to claim 1, characterized in that the power device (3) is a hydraulic cylinder.