CN218374097U - Cantilever crane system and operation car - Google Patents

Abstract

The utility model discloses a boom system and a working vehicle, wherein the boom system comprises a first support arm, a second support arm, a third support arm, a first oil cylinder, a second oil cylinder and a third oil cylinder; one end of the first support arm is hinged with the upper frame, and the first support arm, the second support arm and the third support arm are sequentially and rotatably connected through a pin shaft; one of the first support arm and the second support arm is hinged with the end part of the cylinder barrel of the second oil cylinder, and the other support arm is hinged with the end part of the cylinder rod of the second oil cylinder; one of the second support arm and the third support arm is hinged with the end part of the cylinder barrel of the third oil cylinder, and the other one is hinged with the end part of the cylinder rod of the third oil cylinder. The utility model also discloses an operation car of including above-mentioned cantilever crane system. According to the arm support system, the working requirement under the height-limited environment can be met only by adjusting the oil cylinder operating valve, the normal working range requirement under the non-height-limited working environment can also be met, manual adjustment is not needed, and the flexibility and the safety of operation height adjustment are guaranteed.

Description

Cantilever crane system and operation car

Technical Field

The utility model relates to a highway railway work car technical field, in particular to cantilever crane system, the utility model discloses still relate to an operation car with this cantilever crane system.

Background

Along with the development of China railways towards high speed and heavy load, the acting force borne by railways is larger and larger, a railway business department needs to carry out a large amount of maintenance and railway repair work for many times every year, and the contradiction between railway transportation and maintenance and repair is increased day by day. At present, most of the temporary repair maintenance operations still adopt the traditional manual labor mode, and have low efficiency and high labor intensity. Therefore, the railway public service temporary repair equipment is produced at the same time.

At present, railway temporary repair equipment mainly comprises a tamping machine, a grinding machine, a sleeper-changing machine, a hoisting device, a combined vehicle for both highway and railway and the like, wherein when the common medium-large 15-ton combined vehicle for both highway and railway runs on a rail for operation, a track excavator platform is adopted, a steel rail self-walking device is arranged, and a three-section arm type operation arm is adopted. Because the height of the operation vehicle is required to be limited by the height limit requirement of the railway operation environment and the operation range requirement of the operation vehicle, the operation vehicle is required to be limited in height, the conventional mode is that the steel wire rope or the electronic limit is limited, the steel wire rope is broken or the electronic limit fails, which is a fault problem easily occurring, and the safety of operation personnel and equipment cannot be guaranteed.

Therefore, how to make the working vehicle safely operate in the railway operation height-limited environment is a technical problem that needs to be solved by those skilled in the art at present.

SUMMERY OF THE UTILITY MODEL

The application aims to provide an arm support system and an operation vehicle, which simultaneously meet the working requirement under a height-limited environment and the normal working range under a non-height-limited working environment through an oil cylinder locking device, do not need manual adjustment, only need to adjust an oil cylinder operating valve, and ensure the flexibility and the safety of operation height adjustment.

In order to achieve the purpose, the application provides the following technical scheme:

a boom system comprises a first support arm, a second support arm, a third support arm, a first oil cylinder, a second oil cylinder and a third oil cylinder; one end of the first support arm is hinged to the upper frame, and the first support arm, the second support arm and the third support arm are sequentially and rotatably connected through a pin shaft; one of the first support arm and the second support arm is hinged with the end part of the cylinder barrel of the second oil cylinder, and the other support arm is hinged with the end part of the cylinder rod of the second oil cylinder;

one of the second support arm and the third support arm is hinged with the end part of the cylinder barrel of the third oil cylinder, and the other one is hinged with the end part of the cylinder rod of the third oil cylinder.

Preferably, a fixed block is welded at one end of the upper frame, one of the fixed block and the first support arm is hinged with the end part of the cylinder barrel of the first oil cylinder, and the other one of the fixed block and the first support arm is hinged with the end part of the cylinder rod of the first oil cylinder.

Preferably, one end of the first supporting arm is welded with a first hinge seat for hinging the second oil cylinder and the first supporting arm.

Preferably, one end of the second support arm is welded with a second hinge seat for hinging the third oil cylinder, and is welded with a third hinge seat for hinging the second oil cylinder.

Preferably, the boom system further comprises a bucket and a bucket cylinder, one of the third arm and the bucket being articulated to an end of a cylinder barrel of the bucket cylinder, the other being articulated to an end of a rod of the bucket cylinder.

Preferably, one end of the third support arm, which is far away from the bucket, is welded with a fourth hinged seat; and the third oil cylinder and the bucket oil cylinder are hinged with the fourth hinged seat.

Preferably, one end of the bucket is provided with a link mechanism, and the third support arm and the bucket cylinder are both hinged with the link mechanism.

Preferably, a fifth hinge seat is welded at one end of the bucket close to the third support arm; the third support arm and the link mechanism are hinged with the fifth hinging seat.

The application also provides an operation vehicle with the arm support system, which comprises a get-off system, a get-on system and the arm support system.

The getting-off system comprises a crawler, a steel rail walking device and a crawler frame. And the getting-on system is arranged on a track frame of the getting-off system. And the arm support system is arranged on the getting-on system and is the arm support system.

Compared with the prior art, the application discloses a boom system and an operation vehicle, under the railway operation height limit environment, a first oil cylinder extends to the longest length, a third oil cylinder retracts to the shortest length, and the lifting heights of a second support arm and a third support arm are limited within the height limit range by locking a second oil cylinder operation valve; under the environment that the construction height is not limited, the second oil cylinder locking device is opened, and at the moment, the operation heights of the second support arm and the third support arm are not limited, so that the requirements of different operation heights can be met. The arm support system can intelligently adjust the operation height, ensures the operation range and flexibility of the operation vehicle, and also ensures the safety of operators and equipment.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a front view of a boom system provided in an embodiment of the present application;

fig. 2 is a side view of a boom system provided in an embodiment of the present application;

fig. 3 is a front view of the boom system in a railway operation height-limiting environment according to the embodiment of the present application;

fig. 4 is a front view of a boom system in an unrestricted construction height environment according to an embodiment of the present application;

fig. 5 is a front view of a work vehicle according to an embodiment of the present disclosure.

Wherein:

the system comprises a boom system 1, an upper vehicle system 2 and a lower vehicle system 3;

a first arm 11, a second arm 12, a third arm 13, a bucket 14, a first oil cylinder 15, a second oil cylinder 16, a third oil cylinder 17, a bucket oil cylinder 18, an upper frame 21, a crawler 31 and a rail traveling device 32;

the first hinge seat 111, the second hinge seat 121, the third hinge seat 122, the fourth hinge seat 131, the fifth hinge seat 141, the link mechanism 142, and the fixing block 211.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to enable those skilled in the art to better understand the scheme of the present application, the present application will be described in further detail with reference to the accompanying drawings and the detailed description.

The core of the application is to provide the boom system and the operation vehicle thereof, the working requirement under the height-limited environment and the normal working range under the non-height-limited working environment are met simultaneously through the oil cylinder locking device, manual adjustment is not needed, only the oil cylinder operation valve needs to be adjusted, and the flexibility and the safety of operation height adjustment are guaranteed.

As shown in fig. 1 and fig. 2, the boom system provided by the present application includes a first arm 11, a second arm 12, a third arm 13, a first oil cylinder 15, a second oil cylinder 16, and a third oil cylinder 17; one end of the first support arm 11 is hinged to the upper frame 21, and the first support arm 11, the second support arm 12 and the third support arm 13 are rotationally connected through a pin shaft in sequence; one of the first arm 11 and the second arm 12 is hinged with the end of the cylinder barrel of the second oil cylinder 16, and the other is hinged with the end of the cylinder rod of the second oil cylinder 16; one of the second arm 12 and the third arm 13 is hinged to the cylinder end of the third cylinder 17, and the other is hinged to the rod end of the third cylinder 17.

In this embodiment, the first arm 11, the second arm 12 and the third arm 13 are connected by a pin, that is, the first arm 11 and the second arm 12 can move relative to each other, and the second arm 12 and the third arm 13 can move relative to each other. Specifically, the movements of the first arm 11, the second arm 12, and the third arm 13 can be controlled by controlling the extension and retraction of the first cylinder 15, the second cylinder 16, and the third cylinder 17.

One of the first arm 11 and the second arm 12 is hinged to a cylinder end of the second cylinder 16, and the other is hinged to a rod end of the second cylinder 16. That is, one is that the first arm 11 is hinged to the end of the cylinder tube of the second cylinder 16, and the second arm 12 is hinged to the end of the rod of the second cylinder 16; the other is that the first arm 11 is hinged with the end of the rod of the second cylinder 16, and the second arm is hinged with the end of the cylinder barrel of the second cylinder 16. In any connection manner, the relative movement between the first arm 11 and the second arm 12 can be controlled by controlling the extension and contraction of the second cylinder 16, and the relative position between the two arms is limited.

One of the second arm 12 and the third arm 13 is hinged to the cylinder end of the third cylinder 17, and the other is hinged to the rod end of the third cylinder 17. That is, one is that the second arm 12 is hinged to the cylinder end of the third cylinder 17, and the third arm 13 is hinged to the rod end of the third cylinder 17; one is that the second arm 12 is hinged to the end of the rod of the third cylinder 17 and the third arm 13 is hinged to the end of the bore of the third cylinder 17. In any connection manner, the relative elevation of the third arm 13 and the second arm 12 can be controlled by controlling the contraction of the third cylinder 17.

The mechanism can also comprise a controller which is controlled in a unified mode, and the first oil cylinder 15, the second oil cylinder 16 and the third oil cylinder 17 are all connected with the controller. When the device is used, the oil cylinder can be controlled through the controller.

Under the environment of railway height limitation, by controlling the first oil cylinder 15 to extend to the longest length, because the first oil cylinder 15 is used for position locking, when the telescopic activity of the first oil cylinder 15 is stopped, the lifting height of the first support arm 11 is limited; then, the second oil cylinder 16 is controlled to retract to the shortest length, an operation valve of the second oil cylinder 16 is locked, and the lifting height of the second support arm 12 is limited; because the second support arm 12 and the third support arm 13 are both hinged to the third cylinder, after the third cylinder 17 is limited to retract to the shortest length, the lifting height of the third support arm 13 is also limited, and at the moment, the operating height of the boom system is limited. Under the condition that the construction height is not limited, after the first oil cylinder 15 is controlled to extend to the longest length, the second oil cylinder 16 operation valve is unlocked, and at the moment, the extension of the second oil cylinder 16 is not limited, namely the lifting height of the second support arm 12 is not limited; then the third oil cylinder 17 hinged on the second support arm 12 is not limited naturally, so the lifting height of the third support arm 13 hinged with the second support arm 12 is not limited naturally, and the operation height of the arm support system is flexible and adjustable.

Above, can satisfy the operation requirement under the limit for height environment and the working range under the operating environment of non-limit for height through the operating valve of control second hydro-cylinder, do not need manual adjustment, guaranteed the flexibility of operation height control and the safety of operation personnel and equipment.

On the basis of the above embodiment, one end of the upper frame 21 is welded with the fixing block 211, one of the fixing block 211 and the first supporting arm 11 is hinged with the end of the cylinder barrel of the first oil cylinder 15, and the other is hinged with the end of the cylinder rod of the first oil cylinder 15. Similarly, the fixed block 211 is hinged with the end of the cylinder barrel of the first oil cylinder 15, and the first supporting arm 11 is hinged with the end of the cylinder rod of the first oil cylinder 15; the other is that the fixed block 211 is hinged with the end part of the cylinder rod of the first oil cylinder 15, and the first supporting arm 11 is hinged with the end part of the cylinder barrel of the first oil cylinder 15.

The first arm 11 can be rotatably connected to the upper frame 21 by the hinge connection of the fixing block 211 to the first cylinder 15. Through the hinging of the first arm 11 and the first oil cylinder 15, the lifting height of the first arm 11 can be controlled by controlling the extension and contraction of the first oil cylinder 15. When the first cylinder 15 extends or retracts for a certain length, the lifting height of the first arm 11 is also constant.

On the basis of any one of the above embodiments, a first hinge seat 111 for hinging the second oil cylinder 16 and the first supporting arm 11 is welded at one end of the first supporting arm 11. The second cylinder 16 is fixed at one end to the first arm 11 in order to adjust the lifting height of the second arm 12 with respect to the first arm 11 after the lifting height of the first arm 11 is fixed.

The first hinge base 111 is preferably of an axial hinge structure, and may also be of a spherical hinge structure, so as to satisfy the hinge relationship between the first arm 11 and the second cylinder 16, and enable the two to be rotatably connected.

On the basis of any of the above embodiments, one end of the second arm 12 is welded with a second hinge seat 121 for hinging the third oil cylinder 17, and is welded with a third hinge seat 122 for hinging the second oil cylinder 16. The second hinge base 121 is used for connecting the third oil cylinder 17 with the second support arm 12, and the height of the third support arm 13 relative to the second support arm 12 can be limited by limiting the extension and contraction of the third oil cylinder 17; the third hinge base 122 is used to connect the second cylinder 16 to the second arm 12, and the lifting height of the second arm 12 is limited after the second cylinder 16 is locked. Likewise, the second hinge base 121 and the third hinge base 122 are preferably shaft hinge mechanisms, and the hinge shafts are preferably pin shafts.

On the basis of any of the above embodiments, the boom system 1 further comprises a bucket 14 and a bucket cylinder 18, one of the third arm 13 and the bucket 14 is hinged to a cylinder end of the bucket cylinder 18, and the other is hinged to a rod end of the bucket cylinder 18. That is, one is that the third arm 13 is hinged to the cylinder end of the bucket cylinder 18, and the bucket 14 is hinged to the rod end of the bucket cylinder 18; the other is that the third arm 13 is hinged to the end of the rod of the bucket cylinder 18 and the bucket 14 is hinged to the end of the bore of the bucket cylinder 18.

In either connection, in an environment where the working height is limited, since the third arm 13 and the bucket 14 are connected by the bucket cylinder 18, the height of the third arm 13 is limited, and the bucket cylinder is retracted to the shortest length, so that the lifting height of the bucket 14 is limited.

The above connection mode is hinge joint, the hinge shaft can have various forms, such as a pin shaft, no matter what form of the hinge shaft is adopted, the rotatable connection between the third support arm 13 and the bucket 14 and the bucket cylinder 18 can be satisfied to realize the above function.

On the basis of any of the above embodiments, the end of the third arm 13 away from the bucket 14 is welded with a fourth hinged seat 131; the third cylinder 17 and the bucket cylinder 18 are both hinged with a fourth hinge seat 131. The fourth hinge seat 131 is arranged to allow the third arm 13 and the second arm 12 to move relative to each other, and to allow the bucket cylinder 18 to be fixed to control the lifting height of the bucket 14. By hinging the bucket cylinder 18 to the third hinge base 131, the bucket cylinder 18 is contracted to the shortest length when the lifting height of the third arm 13 is limited, and the height of the bucket 14 with respect to the third arm 13 is also limited.

Likewise, the fourth hinge base 131 is preferably an axle hinge mechanism, i.e., a rotatable connection is formed with the rod end of the third cylinder 17 and the cylinder end of the bucket cylinder 18 by a pin.

Alternatively, the number of the hinge shafts of the fourth hinge base 131 may be one, or may be two.

On the basis of any of the above embodiments, one end of the bucket 14 is provided with a link mechanism 142; the third arm 13 and the bucket cylinder 18 are both hinged to the link mechanism 142. The link mechanism 142 is formed by two rods capable of moving relatively, and there is a hinge point between the two rods for connecting the bucket 14 with the third arm 13 and the bucket cylinder 18 to realize the relative movement between the three.

One of the rods of the link mechanism is connected to the bucket 14 through the fifth hinge base 141 at one end and to the bucket cylinder 18 at the other end, and the bucket cylinder 18 is connected to the fourth hinge base 131 fixed to the third arm 13, that is, the indirect connection of the third arm 13 and the bucket 14 is realized through the rod of the link mechanism 142. Then, the relative height between the bucket 14 and the third arm 13 can be restricted by adjusting the extension and contraction of the bucket cylinder 18.

One end of the other rod piece of the connecting rod mechanism is hinged with the third supporting arm 13, and the other end is hinged with the bucket cylinder 18. When the bucket cylinder 18 is retracted, the two rods can rotate about the hinge point, thereby forming a rotatable connection of the linkage 142 relative to the bucket 14 and the bucket cylinder 18.

Likewise, the number of the hinge shafts of the fifth hinge base 141 may be one or two.

On the basis of any one of the above embodiments, one end of the bucket 14 close to the third arm 13 is welded with a fifth hinged seat 141; the third arm 13 and the link mechanism 142 are both hinged to the fifth hinge base 141. The fifth articulated seat 141 and the bucket cylinder 18 are provided to control the bucket 14, such as lifting and lowering operations, by the working vehicle. Specifically, the fifth hinge seat 141 is pivotally connected to the bucket 14 by a pin, and the link mechanism 142 is also pivotally connected to the bucket cylinder 18 by a pin.

Optionally, the hinge may have various forms, such as a hinge pin, etc., as long as the hinge relationship of mutual rotation is satisfied.

Optionally, the number of the support arms can be multiple, and the form can be more flexible, such as a telescopic arm and the like.

Optionally, an anti-false-touch device can be additionally arranged on the hydraulic oil cylinder operating valve, so that the operation safety and the equipment safety are ensured.

The utility model also provides an operation car, include: the arm support system 1, the getting-on system 2 and the getting-off system 3.

The getting-off system 3 comprises a crawler 31, a steel rail walking device 32 and a crawler frame, and the getting-on system 2 is arranged on the crawler frame of the getting-off system 3. The boom system 1 is installed on the boarding system 2, and the boom system 1 is the boom system 1 provided in any one of the above embodiments. .

In particular, the working vehicle is a highway-railway dual-purpose working vehicle. Wherein, when the working vehicle travels on the railway, the steel rail traveling device 32 is erected on the road surface; when the vehicle travels on a road, the rail traveling device 32 is retracted and the vehicle travels by the crawler belt 31.

The operation vehicle can meet the working requirement under the height-limited environment and the normal working range under the non-height-limited working environment at the same time, does not need manual adjustment, and only needs to adjust the oil cylinder operating valve, thereby ensuring the flexibility and the safety of the operation height adjustment.

The working height of the working vehicle is adjusted by the three-section arm and the hydraulic cylinder, and a method of limiting the working height will be described in detail below.

Under the railway operation height-limiting environment, the concrete structure is shown in figure 3. Firstly, driving the first oil cylinder 15 to extend to the longest length, and at the moment, the first support arm 11 reaches the highest lifting height; further driving the second cylinder 16 to fully retract limits the raised height of the second arm 12 by locking the cylinder operating valve; the third oil cylinder 17 is driven to retract to the shortest length, and the second support arm 12 is connected with the third support arm 13 through the third oil cylinder 17, so that the lifting height of the third support arm 13 is limited; further, the bucket cylinder 18 is contracted to the shortest length, and the lifting height of the bucket 14 is limited after the lifting height of the third arm 13 is limited. Thus, the working height of the working vehicle in the height limiting environment is limited.

In an environment without limitation to the construction height, as shown in fig. 4. Firstly, the first oil cylinder 15 is driven to extend to the longest length, the operating valve of the second oil cylinder 16 is unlocked, the extending length of the second oil cylinder 16 can be freely adjusted, and the working height of the second support arm 12 is not limited; the extension of the third cylinder 17 connected to the second arm 12 is not restricted; the extension of the bucket cylinder 18, which is further connected to the third arm 13, is not limited, and different working height requirements can be met according to actual conditions. Therefore, the guarantee of the normal working range of the working vehicle under the unlimited height working environment is completed.

The specific construction height limit and the maximum working height are determined according to actual conditions.

It is right above that the utility model provides a cantilever crane system and operation car have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (9)

1. A boom system is characterized by comprising a first support arm (11), a second support arm (12), a third support arm (13), a first oil cylinder (15), a second oil cylinder (16) and a third oil cylinder (17);

one end of the first support arm (11) is hinged with an upper frame (21), and the first support arm (11), the second support arm (12) and the third support arm (13) are sequentially connected in a rotating manner through a pin shaft;

one of the first support arm (11) and the second support arm (12) is hinged with the end part of the cylinder barrel of the second oil cylinder (16), and the other one is hinged with the end part of the cylinder rod of the second oil cylinder (16);

one of the second support arm (12) and the third support arm (13) is hinged with the end part of the cylinder barrel of the third oil cylinder (17), and the other one is hinged with the end part of the cylinder rod of the third oil cylinder (17).

2. The boom system according to claim 1, characterized in that a fixed block (211) is welded to one end of the upper frame (21); one of the fixed block (211) and the first supporting arm (11) is hinged with the end part of the cylinder barrel of the first oil cylinder (15), and the other one is hinged with the end part of the cylinder rod of the first oil cylinder (15).

3. The boom system of claim 1, characterized in that a first hinge seat (111) for hinging the second cylinder (16) and the first boom (11) is welded to one end of the first boom (11).

4. The boom system according to claim 1, characterized in that one end of the second arm (12) is welded with a second hinge seat (121) for hinging the third cylinder (17) and with a third hinge seat (122) for hinging the second cylinder (16).

5. The boom system of any of claims 1 to 4, characterized in that the boom system (1) further comprises a bucket (14) and a bucket cylinder (18); one of the third arm (13) and the bucket (14) is hinged to a cylinder end of the bucket cylinder (18), and the other is hinged to a rod end of the bucket cylinder (18).

6. The boom system according to claim 5, characterized in that the end of the third arm (13) remote from the bucket (14) is welded with a fourth articulated seat (131); the third oil cylinder (17) and the bucket oil cylinder (18) are hinged with the fourth hinged seat (131).

7. The boom system of claim 6, characterized in that one end of the bucket (14) is provided with a linkage (142); the third support arm (13) and the bucket cylinder (18) are hinged with the connecting rod mechanism (142).

8. The boom system of claim 7, characterized in that a fifth articulated seat (141) is welded to one end of the bucket (14) close to the third arm (13); the third support arm (13) and the link mechanism (142) are hinged to the fifth hinged seat (141).

9. A work vehicle, comprising:

the get-off system (3), wherein the get-off system (3) comprises a crawler (31), a steel rail walking device (32) and a crawler frame;

the getting-on system (2) is arranged on the crawler frame of the getting-off system (3);

boom system (1), the boom system (1) of any of claims 1 to 8, the boom system (1) being mounted on the boarding system (2).

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