CN115339301A - Roof lifting mechanism for cab of mining engineering vehicle - Google Patents

Abstract

The invention discloses a roof lifting mechanism of a cab of a mining engineering vehicle, and belongs to the technical field of engineering mechanical equipment manufacturing. The lifting mechanism comprises a supporting structure for supporting a ceiling of a cab, wherein the supporting structure comprises a first upright post, a second upright post, a third upright post and a fourth upright post; the lifting structure is connected with the supporting structure and used for controlling the pitching lifting of the cab ceiling, the lifting structure comprises a first oil cylinder, a second oil cylinder, a first sleeve and a second sleeve, the first oil cylinder and the first sleeve are located in the first stand column, and the second oil cylinder and the second sleeve are located in the second stand column. The invention can enable the cab ceiling to pitch a certain angle in the working process of the mining engineering automobile, and improves the working visual field and the head space. The operation of the mining engineering automobile is more convenient for operators to drive, and the construction safety is further ensured.

Description

Roof lifting mechanism for cab of mining engineering vehicle

Technical Field

The invention belongs to the technical field of engineering machinery equipment manufacturing, and particularly relates to a roof lifting mechanism of a cab of a mining engineering vehicle.

Background

The mining truck belongs to off-highway truck, mainly used in mine, engineering, more durable than general truck, the load also more. Structurally, mining trucks and ordinary dump trucks appear not to be as large as if they were just "large". In fact, the mining truck is substantially different from the common dump truck in design concept. The common dump truck is used for road transportation, and the mining truck is used for mine construction operation, so that the whole truck and parts of the mining truck take the mine operation environment into consideration, and the dump truck is designed and manufactured for the users.

The mining engineering vehicle belongs to a mining automobile, a cab plays a very important role in the mining engineering vehicle, the cab is usually connected with a frame, a cab bottom plate, a seat, an operation table, a protective cover and a front protective plate are generally arranged in the cab, and certainly, for safety, fire extinguishers are too few. When the mining engineering vehicle works, if the ceiling of a cab is fixed, the visual field of an operator is too small, even the sight is blocked, the construction precision is influenced, and in addition, the mine operation environment is complex, and even the construction safety is influenced.

CN202227984U discloses a liftable ceiling of a driver cab of a tunnel drilling machine, which utilizes a lifting rack to adjust the height. Although the ceiling can be adjusted in height, the ceiling still has the defects that: 1. the lifting rack is easy to damage and not easy to maintain; 2. the ceiling further comprises a hollow guide upright post (4), and the ceiling is unstable and easy to shake when lifted; 3. the ceiling can only be adjusted in height and not in angle.

CN206598894U provides a liftable cab of a drill jumbo, "ceiling lifting cylinders are respectively arranged on two sides of the cab, wherein the ceiling lifting cylinders on the two sides are synchronous, and vertical lifting of a protective ceiling is realized". Although the height of the protection ceiling can be adjusted through the lifting oil cylinder in the patent, the angle of the protection ceiling cannot be adjusted.

Disclosure of Invention

The invention aims to provide a mining engineering vehicle cab ceiling lifting mechanism, which aims to solve the problems that the sight of operators is easily influenced, the construction is influenced and the height and the angle of a ceiling cannot be adjusted when a cab ceiling of a mining engineering vehicle is fixed. The invention can enable the cab ceiling to pitch a certain angle in the working process of the mining engineering automobile, and improves the working visual field and the head space. The mine engineering automobile is more convenient for operators to drive to work, and meanwhile, the construction safety is further guaranteed.

The invention provides a ceiling lifting mechanism for a cab of a mining engineering vehicle, which comprises a supporting structure and a lifting structure, wherein the supporting structure is used for supporting a ceiling of the cab and is connected with the ceiling supporting the cab, the lifting structure is used for controlling the adjustment of the pitch angle of the ceiling of the cab, one end of the lifting structure is connected with the supporting structure, and the other end of the lifting structure is connected with the ceiling.

The supporting structure comprises a first stand column, a second stand column, a third stand column and a fourth stand column, wherein the first stand column, the second stand column, the third stand column and the fourth stand column are located around the cab.

In some embodiments, the first column, the second column, the third column and the fourth column are all fixedly arranged on the cab bottom plate.

In some embodiments, the first and second pillars are disposed on a cab floor, and the third and fourth pillars are disposed on a frame.

In some embodiments, the first upright and the second upright are respectively located on two sides of the operation table, and the first upright and the second upright are equal in height, and the third upright and the fourth upright are respectively located on two sides of the seat, and the third upright and the fourth upright are equal in height.

In some embodiments, the third and fourth pillars are higher than the first and second pillars.

And the third upright column and the fourth upright column are connected with a ceiling.

In some embodiments, the third upright and the fourth upright are both rotatably connected with the ceiling.

In some embodiments, a fifth pin shaft and a third connecting block are arranged between the third upright column and the ceiling, the fifth pin shaft is located at the upper end of the third upright column and located inside the third upright column, one end of the third connecting block is hinged to the fifth pin shaft, the other end of the third connecting block is connected to the ceiling, a sixth pin shaft and a fourth connecting block are arranged between the fourth upright column and the ceiling, the sixth pin shaft is located at the upper end of the fourth upright column and located inside the fourth upright column, one end of the fourth connecting block is hinged to the sixth pin shaft, and the other end of the fourth connecting block is connected to the ceiling.

In some embodiments, the upper ends of the third upright column and the fourth upright column are provided with a clearance, and the clearance is arranged at the position where the third upright column, the fourth upright column and the ceiling are rotatably connected, so that sufficient space can be reserved for the third connecting block and the fourth connecting block when the ceiling performs pitching motion, and the ceiling can conveniently rotate on the third upright column and the fourth upright column.

The third pillar is provided with a fire extinguishing device, and the fire extinguishing device is arranged to cope with emergency situations, for example, when the operating platform breaks down and a fire breaks out, a driver can take out the fire extinguishing device from the third pillar to extinguish the fire.

In some embodiments, the fire suppression apparatus is a fire extinguisher.

In some embodiments, the fire extinguishing device is disposed on a side of the third pillar, and the fire extinguishing device is located on a side away from the console.

The lifting structure comprises a first oil cylinder, a second oil cylinder, a first sleeve and a second sleeve, wherein the second oil cylinder and the first sleeve are positioned in the first stand column, and the first oil cylinder and the second sleeve are positioned in the second stand column.

The oil cylinder is connected with the sleeve.

In some embodiments, a second pin is disposed between the first oil cylinder and the second sleeve, the first oil cylinder is hinged to the second sleeve through the second pin, a ninth pin is disposed between the second oil cylinder and the first sleeve, and the second oil cylinder is hinged to the first sleeve through the ninth pin.

In some embodiments, the first and second rams are connected in parallel.

The lifting structure is connected with the supporting structure.

In some embodiments, a first pin is disposed between the first oil cylinder and the second upright, the first oil cylinder is hinged to the second upright through the first pin, a tenth pin is disposed between the second oil cylinder and the first upright, and the second oil cylinder is hinged to the first upright through the tenth pin.

And a hinged plate is arranged between the lifting structure and the ceiling.

In some embodiments, a first hinge plate is arranged between the second sleeve and the ceiling, and a second hinge plate is arranged between the first sleeve and the ceiling.

One end of the sleeve is connected with the oil cylinder, and the other end of the sleeve is connected with the hinged plate.

In some embodiments, a third pin is disposed between the second sleeve and the first hinge plate, the second sleeve is hinged to the first hinge plate through the third pin, the third pin is located on the second sleeve, an eighth pin is disposed between the first sleeve and the second hinge plate, the eighth pin is located on the first sleeve, and the first sleeve is hinged to the second hinge plate through the eighth pin.

One end of the hinged plate is connected with the sleeve, and the other end of the hinged plate is connected with the ceiling.

In some embodiments, a fourth pin shaft and a second connecting block are arranged between the first hinge plate and the ceiling, the fourth pin shaft is located at the lower end of the second connecting block, one end of the second connecting block is hinged to the first hinge plate through the fourth pin shaft, the other end of the second connecting block is connected with the ceiling, a seventh pin shaft and a first connecting block are arranged between the second hinge plate and the ceiling, the seventh pin shaft is located at the lower end of the first connecting block, one end of the first connecting block is hinged to the second hinge plate through the seventh pin shaft, and the other end of the first connecting block is connected with the ceiling.

The upper ends of the first upright post and the second upright post are provided with concaves, and the concaves are used for accommodating the hinged plates.

In some embodiments, the concave part is provided with a clearance, and the clearance can leave a space for the hinged plate when the ceiling performs pitching motion, so that the hinged plate can move conveniently.

The operating platform is provided with a protective cover for protecting the operating platform.

In some embodiments, the shield is shaped as a grid.

In some embodiments, the protective cover is provided with a downward-folded protective plate, the downward-folded protective plate can protect the operation table when the ceiling is in a raised state, because the falling rocks and the like can hit the operation table obliquely when the ceiling is in the raised state, although the protective cover does not necessarily play a role in protection at this time, the downward-folded protective plate can block the falling rocks and the like, and the operation table and the instrument panel are prevented from being damaged by the falling rocks and the like.

In some embodiments, the shield is connected to the hinge plate.

In some embodiments, the protective cover is fixedly connected with the first hinge plate and the second hinge plate respectively.

In some embodiments, the shield is connected to a ceiling.

In some embodiments, the upper end of the shield is hinged to an end of the ceiling proximate the console.

The protective cover is parallel to the hinged plate.

The invention has the technical effects and advantages that:

1. the positions of the third upright post and the fourth upright post are higher than the positions of the first upright post and the second upright post, and have height difference, so that the operator in the cab can have a wider visual field during operation, and certain head space is increased.

2. The lifting adjusting device utilizes the two oil cylinders, the two sleeves and the two hinged plates to carry out lifting adjustment, adjusts the height of the ceiling and adjusts the angle of the ceiling at the same time, not only enables the ceiling of the cab to be lifted stably in a pitching manner, but also saves energy consumption and relatively reduces cost.

3. When the cab ceiling does not need to be lifted in a supine manner, the hinged plate can make up for the height difference between the third upright post and the fourth upright post and between the first upright post and the second upright post, so that the cab ceiling is stably positioned above the cab; when the cab roof is required to be lifted in a supine position, the hinging motion of the hinging plates drives the roof to do pitching motion around the fifth pin shaft of the fixed hinging point and the sixth pin shaft of the fixed hinging point, so that the purpose of pitching lifting of the roof is achieved.

Drawings

Fig. 1 is a schematic view of the overall structure of the lifting mechanism of the present application;

FIG. 2 is a side view of the lift mechanism of the present application;

FIG. 3 is a front view of the lift mechanism of the present application;

FIG. 4 is a side view of the lift mechanism of the present application;

FIG. 5 is a schematic view of the overall construction of another angle of the lift mechanism of the present application;

fig. 6 is a state diagram of the use of the lifting mechanism of the present application.

In the figure:

1. a front guard plate;

2. a protective cover;

3. a first pin shaft;

4. a first cylinder;

5. a second pin shaft;

6. a third pin shaft;

7. an operation table;

8. a first hinge plate;

9. a fourth pin shaft;

10. a ceiling;

11. a seat;

12. a third column;

13. a fifth pin shaft;

14. a first upright post;

15. a first sleeve;

16. a second sleeve;

17. a second upright;

18. a fire extinguisher;

19. a fourth column;

20. a sixth pin shaft;

21. a seventh pin shaft;

22. a second hinge plate;

23. an eighth pin shaft;

24. a ninth pin shaft;

25. a second cylinder;

26. a tenth pin shaft;

27. a cab floor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Example 1

Referring to fig. 1 to 6 (the indicated directions or positional relationships are shown in fig. 1), in the present embodiment, there is provided a ceiling lifting mechanism for a cab of a mining engineering vehicle, including a supporting structure and a lifting structure, the supporting structure is used for supporting a ceiling 10 of the cab, the lifting structure is connected to the supporting structure and is used for controlling the ceiling of the cab to lift in a pitching manner, the cab is connected to a vehicle frame, a cab floor 27, a seat 11, an operation console 7, a protective cover 2 and a front guard plate 1 are generally arranged in the cab, and certainly, for safety, a fire extinguisher 18 is too few; the supporting structure comprises four upright posts, namely a first upright post 14, a second upright post 17, a third upright post 12 and a fourth upright post 19, wherein the first upright post 14, the second upright post 17, the third upright post 12 and the fourth upright post 19 are positioned around the cab, and the first upright post 14, the second upright post 17, the third upright post 12 and the fourth upright post 19 are all fixedly arranged on a cab bottom plate 27 (if actual conditions need to be met, the four upright posts can also be arranged as follows: the first upright column 14 and the second upright column 17 are arranged on a cab bottom plate 27, the third upright column 12 and the fourth upright column 19 are arranged on a frame, wherein the first upright column 14 is a first front upright column 14, the second upright column 17 is a second front upright column 17, the first upright column 14 is positioned on the right side of an operation console, the second upright column 17 is positioned on the left side of the operation console, the first upright column 14 and the second upright column 17 have the same height, the third upright column 12 is a first rear upright column 12, the fourth upright column 19 is a second rear upright column 19, the third upright column 12 is positioned on the left rear side of a seat, the fourth upright column 19 is positioned on the right rear side of the seat, the third upright column 12 and the fourth upright column 19 are symmetrical with respect to the seat 11, the third upright column 12 and the fourth upright column 19 have the same height, the third upright column 12 and the fourth upright column 19 are positioned higher than the first upright column 14 and the second upright column 17 (here, "higher than" means that the third upright column 12 and the fourth upright column 19 are positioned higher than the first upright column 14 and the second upright column 17, the third upright column 12 and the fourth upright column 19 are positioned higher than the first upright column 14 and the second upright column 14 and the fourth upright column 17, but the third upright column 14 and the fourth upright column 17 are positioned on the cab bottom plate 27, and the cab bottom plate 27, so that the third upright column 14 and the fourth upright column 17 are positioned on the cab bottom plate 14 and the cab bottom plate 27 are positioned as seen from the entire cab bottom plate 14 and the frame 14, the first upright column 17, and the cab bottom plate 27 may also may be positioned, the second upright column 17), starting from the left front of the cab seat 11, is sequentially provided with the second upright column 17, the first upright column 14, the fourth upright column 19 and the third upright column 12 in the clockwise direction, the first upright column 14 and the fourth upright column 19 are positioned on the same straight line, the second upright column 17 and the third upright column 12 are positioned on the same straight line, and the first upright column 14, the second upright column 17, the third upright column 12 and the fourth upright column 19 form a rectangle (can also be a square) when viewed from top to bottom; the lifting structure is positioned in front of the cab seat 11 and comprises a first oil cylinder 4, a second oil cylinder 25, a first sleeve 15 and a second sleeve 16, the second oil cylinder 25 and the first sleeve 15 are positioned in the first upright post 14, and the first oil cylinder 4 and the second sleeve 16 are positioned in the second upright post 14; preceding backplate 1 is located second stand 17, first stand 14 preceding, and ceiling 10 front end is in operation panel 7 top, and 2 lower extremes of protection casing are preceding in backplate 1 in the front, and 2 upper ends of protection casing are connected with ceiling 10 front end, and protection casing 2 is the grid form, and protection casing 2 is the tilt state (promptly protection casing 2 has certain angle with ceiling 10, in the driver's cabin, and protection casing 2 is the obtuse angle with the contained angle of ceiling 10), and this mining engineering vehicle driver's cabin ceiling elevating system specifically connects as follows:

the second upright post 17 is a hollow post, a first pin shaft 3 is arranged in the second upright post 17, the first pin shaft 3 is positioned at the lower end of the second upright post 17, a first oil cylinder 4 is arranged above the first pin shaft 3, the first oil cylinder 4 is hinged with the second upright post 17 through the first pin shaft 3, a second pin shaft 5 is arranged above the first oil cylinder 4, a second sleeve 16 is arranged above the second pin shaft 5, the first oil cylinder 4 is hinged with the second sleeve 16 through the second pin shaft 5, the lower end of the second sleeve 16 is sleeved at the upper end of the first oil cylinder 4, the first oil cylinder 4 is provided with a first movable end, the first movable end is positioned at the upper end of the first oil cylinder 4, the first movable end is positioned in the second sleeve 16, a first hinged plate 8 is arranged between the second sleeve 16 and the ceiling 10 (the first hinged plate 8 is parallel to the protective cover 2, namely, the first hinged plate 8 has a certain angle with the ceiling 10, in the cab, the included angle between the first hinged plate 8 and the ceiling 10 is an obtuse angle, the included angle between the first hinged plate 8 and the ceiling 10 is equal to the included angle between the protective cover 2 and the ceiling 10, a third pin shaft 6 is arranged between the second sleeve 16 and the first hinged plate 8, the third pin shaft 6 is arranged at the upper end of the second sleeve 16, the third pin shaft 6 is arranged at the lower end of the first hinged plate 8, the second sleeve 16 is hinged with the first hinged plate 8 through the third pin shaft 6, the upper end of the second upright post 17 is provided with a concave recess, a second clearance is arranged at the rear side of the concave recess and is arranged at the upper end of the second upright post 17 (the second clearance can accommodate the first hinged plate 8, so that the lower end of the first hinged plate 8 rotates on the second upright post 17 when the ceiling performs pitching motion), the lower end of the first hinged plate 8 is connected with the second sleeve 16, the upper end of the first hinged plate 8 is connected with the front end of the ceiling 10, the first hinged plate 8 is located on the left side of the ceiling 10, a fourth pin shaft 9 and a second connecting block are arranged between the first hinged plate 8 and the ceiling 10, the fourth pin shaft 9 is located at the upper end of the first hinged plate 8, the fourth pin shaft 9 is located at the lower end of the second connecting block, the lower end of the second connecting block is hinged to the first hinged plate 8 through the fourth pin shaft 9, the upper end of the second connecting block is connected with the ceiling 10, the second connecting block is located at the front end of the ceiling 10, a fifth pin shaft 13 and a third connecting block are arranged between the ceiling 10 and a third upright column 12, the fifth pin shaft 13 is located at the upper end of the third upright column 12 and located inside the third upright column 12, the lower end of the third connecting block is hinged to the fifth pin shaft 13, the upper end of the third connecting block is connected with the ceiling 10, the fifth pin shaft 13 and the third connecting block are located at the rear end of the ceiling 10, a fire extinguishing device is arranged on the left side of the third upright column 12 (the fire extinguishing device refers to a fire extinguisher, the fire extinguishing device is arranged to deal with sudden emergency situations, the fire extinguishing device is arranged on the third upright column 12, and the third upright column 12 can be conveniently held on the third connecting block when the third upright column 12 for pitching motion; the first upright post 14 is a hollow post, a tenth hinge pin 26 is arranged in the first upright post 14, the tenth hinge pin 26 is positioned at the lower end of the first upright post 14, a second oil cylinder 25 is arranged above the tenth hinge pin 26, the second oil cylinder 25 is hinged with the first upright post 14 through the tenth hinge pin 26, a ninth hinge pin 24 is arranged above the second oil cylinder 25, a first sleeve 15 is arranged above the ninth hinge pin 24, the second oil cylinder 25 is hinged with the first sleeve 15 through the ninth hinge pin 24, the lower end of the first sleeve 15 is sleeved at the upper end of the second oil cylinder 25, the second oil cylinder 25 is provided with a second movable end, the second movable end is positioned at the upper end of the second oil cylinder 25, the second movable end is positioned in the first sleeve 15, a second hinge plate 22 is arranged between the first sleeve 15 and the ceiling 10, the second hinge plate 22 is parallel to the first hinge plate 8 (namely, the second hinge plate 22 and the ceiling 10 have a certain angle, in a cab, the included angle between the second hinged plate 22 and the ceiling 10 is an obtuse angle, and in the process of pitching and lifting of the ceiling 10, the included angle between the second hinged plate 22 and the ceiling 10 is always equal to the included angle between the first hinged plate 8 and the ceiling 10, so that the second hinged plate 22 and the first hinged plate 8 can be ensured to synchronously perform hinged motion, and the synchronism and the stability of the ceiling in pitching and lifting are kept, an eighth pin shaft 23 is arranged between the first sleeve 15 and the second hinged plate 22, the eighth pin shaft 23 is arranged at the upper end of the first sleeve 15, the eighth pin shaft 23 is arranged at the lower end of the second hinged plate 22, the first sleeve 15 is hinged with the second hinged plate 22 through the eighth pin shaft 23, the lower end of the second hinged plate 22 is connected with the first sleeve 15, the upper end of the second hinged plate 22 is connected with the front end of the ceiling 10, the upper end of the first upright column 14 is provided with a concave rear side provided with a first clearance, the first clearance is positioned at the upper end of the first upright post 14 (the first clearance can accommodate a second hinged plate 22, so that the lower end of the second hinged plate 22 can conveniently rotate on the first upright post 14 when the ceiling performs pitching motion), a seventh pin shaft 21 and a first connecting block are arranged between the second hinged plate 22 and the ceiling 10, the seventh pin shaft 21 is positioned at the upper end of the second hinged plate 22, the seventh pin shaft 21 is positioned at the lower end of the first connecting block, the lower end of the first connecting block is hinged with the second hinged plate 22 through the seventh pin shaft 21, the upper end of the first connecting block is connected with the ceiling 10, the first connecting block is positioned at the front end of the ceiling 10, a sixth pin shaft 20 and a fourth connecting block are arranged between the ceiling 10 and the fourth upright post 19, the sixth pin shaft 20 is positioned at the upper end of the fourth upright post 19 and positioned inside the fourth upright post 19, the lower end of the fourth connecting block is hinged with the sixth pin shaft 20, the upper end of the fourth connecting block is connected with the ceiling 10, the sixth pin shaft 20 and the fourth connecting block are positioned at the rear end of the ceiling 10, the fourth upright post 19 is arranged at the rear side of the fourth upright post 19, and the fourth clearance can conveniently accommodate the fourth upright post 19 when the ceiling 19 performs pitching motion; the first oil cylinder 4 and the second oil cylinder 25 are connected in parallel.

The working principle of the invention is as follows: the first oil cylinder 4 and the second oil cylinder 25 are connected in parallel, when the movable ends of the first oil cylinder 4 and the second oil cylinder 25 extend out simultaneously, the first sleeve 15 and the second sleeve 16 can lift in the first upright post 14 and the second upright post 17 simultaneously, and the ceiling 10 can do pitching motion around the fifth pin shaft 13 of the fixed hinged point and the sixth pin shaft 20 of the fixed hinged point through the hinged motion of the first hinged plate 8 and the second hinged plate 22, so that the purpose of pitching and lifting of the ceiling is achieved.

Example 2

In this embodiment, the lower end of the shield 2 is in front of the front guard plate 1, the upper end of the shield 2 is connected with the hinged plate, the upper end of the left side of the shield 2 is connected with the first hinged plate 8, the upper end of the right side of the shield 2 is connected with the second hinged plate 22 (the shield 2 is connected with the hinged plate to strengthen the strength of the hinged plate and reduce the pressure of the ceiling on the hinged plate), at this time, the shield 2 is equivalent to a connecting rod of the first hinged plate 8 and the second hinged plate 22, when the first hinged plate 8 performs the hinged motion, the first hinged plate 8 can drive the second hinged plate 22 through the shield 2 to perform the hinged motion together synchronously (or when the second hinged plate 22 performs the hinged motion, the second hinged plate 22 can drive the first hinged plate 8 through the shield 2 to perform the hinged motion together synchronously), and the rest structures are the same as those in embodiment 1.

Example 3

In this embodiment, the lower end of the protection cover 2 has a downward folded protection plate, the downward folded protection plate is parallel to the front protection plate 1, the downward folded protection plate can also protect the operation table when the ceiling is in the raised state, because the ceiling is in the raised state, the falling stones and the like can be obliquely hit towards the operation table, although the protection cover 2 does not necessarily play a role of protection at this moment, the downward folded protection plate can block the falling stones and the like, the operation table and the instrument panel are prevented from being damaged by the falling stones and the like, and other structures are the same as those in embodiment 1.

Example 4

In this embodiment, the first oil cylinder 4 is not arranged inside the second upright column 17 (or the second oil cylinder 25 is not arranged inside the first upright column 14), and a connecting rod is arranged between the first hinge plate 8 and the second hinge plate 22, so that when the second oil cylinder 25 drives the first sleeve 15 to rise in the first upright column 14 and drives the second hinge plate 22 to perform a hinge motion, the second hinge plate 22 drives the first hinge plate 8 to perform a hinge motion together through the connecting rod (or when the first oil cylinder 4 drives the second sleeve 16 to rise in the second upright column 17 and drives the first hinge plate 8 to perform a hinge motion, the first hinge plate 8 drives the second hinge plate 22 to perform a hinge motion together through the connecting rod), thereby realizing the pitching lifting of the ceiling.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

It should be apparent that the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are not specifically illustrated or described, but are instead contemplated to be practiced in the art by those skilled in the art.

Claims (10)

1. The utility model provides a mining engineering vehicle driver's cabin ceiling elevating system which characterized in that includes:

the supporting structure is used for supporting a ceiling (10) of a cab, and comprises a first upright post (14), a second upright post (17), a third upright post (12) and a fourth upright post (19), wherein the first upright post (14), the second upright post (17), the third upright post (12) and the fourth upright post (19) are positioned around the cab, the first upright post (14) and the second upright post (17) are positioned on one side close to an operation table (7), the ceiling (10) is respectively hinged with the first upright post (14) and the second upright post (17), the third upright post (12) and the fourth upright post (19) are positioned on one side far away from the operation table (7), and the ceiling (10) is respectively connected with the third upright post (12) and the fourth upright post (19) in a rotating manner;

elevation structure is connected with bearing structure for the pitch angle regulation of control driver's cabin roof (10), elevation structure includes first hydro-cylinder (4), second hydro-cylinder (25), first sleeve (15) and second sleeve (16), second hydro-cylinder (25), first sleeve (15) are located inside first stand (14), inside first hydro-cylinder (4), second sleeve (16) are located second stand (14), and first sleeve (15) and second sleeve (16) are articulated through articulated slab and roof (10).

2. The mining engineering vehicle cab shed lifting mechanism according to claim 1, wherein the first upright column (14) and the second upright column (17) are arranged on a cab bottom plate (27), the first upright column (14) and the second upright column (17) are respectively located on two sides of the operating platform (7), the first upright column (14) and the second upright column (17) are equal in height, the third upright column (12) and the fourth upright column (19) are arranged on the vehicle frame, the third upright column (12) and the fourth upright column (19) are respectively located on two sides of the seat (11), and the third upright column (12) and the fourth upright column (19) are equal in height.

3. The mining engineering vehicle cab canopy lifting mechanism according to claim 1, wherein the third upright column (12) and the fourth upright column (19) are located at positions higher than the first upright column (14) and the second upright column (17).

4. The mining engineering vehicle cab canopy lifting mechanism according to claim 1, wherein one end of the first oil cylinder (4) is hinged to the second upright post (17), the other end of the first oil cylinder (4) is hinged to the second sleeve (16), and the other end of the first oil cylinder (4) is located inside the second sleeve (16).

5. The mining engineering vehicle cab ceiling lifting mechanism is characterized in that a first hinge plate (8) is arranged between the second sleeve (16) and a ceiling (10), a third hinge pin (6) is arranged between the first hinge plate (8) and the second sleeve (16), one end of the first hinge plate (8) is hinged to the second sleeve (16) through the third hinge pin (6), a fourth hinge pin (9) is arranged between the first hinge plate (8) and the ceiling (10), and the other end of the first hinge plate (8) is hinged to the ceiling (10) through the fourth hinge pin (9).

6. The mining engineering vehicle cab canopy lifting mechanism according to claim 1, wherein one end of the second oil cylinder (25) is hinged to the first upright (14), the other end of the second oil cylinder (25) is hinged to the first sleeve (15), and the other end of the second oil cylinder (25) is located inside the first sleeve (15).

7. The mining engineering vehicle cab ceiling lifting mechanism according to claim 1, wherein a second hinge plate (22) is arranged between the first sleeve (15) and the ceiling (10), an eighth hinge pin (23) is arranged between the second hinge plate (22) and the first sleeve (15), one end of the second hinge plate (22) is hinged to the first sleeve (15) through the eighth hinge pin (23), a seventh hinge pin (21) is arranged between the second hinge plate (22) and the ceiling (10), and the other end of the second hinge plate (22) is hinged to the ceiling (10) through the seventh hinge pin (21).

8. The mining engineering vehicle cab canopy lifting mechanism according to claim 1, wherein the first cylinder (4) and the second cylinder (25) are connected in parallel.

9. The mining engineering vehicle cab ceiling lifting mechanism is characterized in that the first upright post (14) is provided with a first clearance which is arranged at the joint of the first upright post (14) and the second hinge plate (22), the second upright post (17) is provided with a second clearance which is arranged at the joint of the second upright post (17) and the first hinge plate (8), the third upright post (12) and the fourth upright post (19) are provided with a third clearance and a fourth clearance which are respectively arranged at the positions where the third upright post (12), the fourth upright post (19) and a ceiling are rotatably connected.

10. The mining engineering vehicle cab ceiling lifting mechanism is characterized in that a protective cover (2) is arranged on the operating platform (7), and the protective cover (2) is provided with a downward-folded protective plate.

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