阅读说明：本技术 一种随车起重机的配重装置 (Counterweight device of lorry-mounted crane ) 是由 梁大伟 于 2021-08-23 设计创作，主要内容包括：本发明公开一种随车起重机的配重装置,包括车体和与车体转动连接的起重臂,所述车体两侧设置有若干用于支撑车体的支撑脚座,若干所述支撑脚座均通过油缸一转动安装于车体上,所述起重臂一侧固定连接有配重机构。本发明通过设置配重机构,配重机构内设置的驱动件用于带动配重盘在壳体上滑动,可移动的配重盘用于调整随车起重机的重心,便于适应不同的工作状态,通过在配重盘内设置配重块,可调整配重重量的配重盘,便于提高起吊的重量,提高了装置的实用性,配重盘底部设置的固定组件,用于固定配重块,避免配重盘移动过程中,配重槽内未固定的配重块随之移动,从而造成配重块的滑脱和偏移,影响起重机的运行。(The invention discloses a counterweight device of a lorry-mounted crane, which comprises a vehicle body and a crane boom rotationally connected with the vehicle body, wherein a plurality of supporting foot seats for supporting the vehicle body are arranged on two sides of the vehicle body, the supporting foot seats are rotationally arranged on the vehicle body through one oil cylinder, and one side of the crane boom is fixedly connected with a counterweight mechanism. The counterweight mechanism is arranged, the driving piece arranged in the counterweight mechanism is used for driving the counterweight plate to slide on the shell, the movable counterweight plate is used for adjusting the gravity center of the lorry-mounted crane, different working states are convenient to adapt, the counterweight plate with the counterweight weight can be adjusted by arranging the counterweight blocks in the counterweight plate, the hoisting weight is convenient to improve, the practicability of the device is improved, and the fixing component arranged at the bottom of the counterweight plate is used for fixing the counterweight blocks, so that the situation that the counterweight blocks which are not fixed in the counterweight grooves move along with the counterweight blocks in the moving process of the counterweight plate, the slippage and the offset of the counterweight blocks are caused, and the operation of the crane is influenced is avoided.)

1. A counterweight device of a lorry-mounted crane comprises a crane body (1) and a crane boom rotationally connected with the crane body (1), and is characterized in that a plurality of supporting foot seats (3) used for supporting the crane body (1) are arranged on two sides of the crane body (1), the supporting foot seats (3) are rotationally mounted on the crane body (1) through a first oil cylinder (2), and a counterweight mechanism (4) is fixedly connected to one side of the crane boom;

the counterweight mechanism (4) comprises a shell (5), a counterweight plate (6) and a driving piece (9) for driving the counterweight plate (6) to move, the counterweight plate (6) is slidably mounted on the shell (5), and a plurality of counterweight blocks (8) and fixing assemblies (7) for fixing the counterweight blocks (8) are arranged in the counterweight plate (6);

the fixing assembly (7) comprises a moving seat (705), the moving seat (705) is connected to the lead screw (702) in a threaded mode, and liftable baffles (708) are arranged on two sides of the moving seat (705).

2. The counterweight device for lorry-mounted crane according to claim 1, characterized in that a containing groove is formed in the housing (5), sliding grooves I (502) are symmetrically formed on two sides of the bottom of the containing groove, limiting grooves (501) are symmetrically formed on two sides of the containing groove, and an opening (503) is formed in the bottom of the containing groove.

3. The counterweight device of lorry-mounted crane according to claim 1, characterized in that two sides of the counterweight plate (6) are symmetrically provided with limiting rods (601), two limiting rods (601) are respectively slidably mounted in two limiting grooves (501), and hydraulic buffers (602) are fixedly mounted on the same side of two limiting rods (601).

4. The counterweight device of lorry-mounted crane according to claim 1, wherein the counterweight plate (6) is slidably mounted on two first sliding slots (502) through two sliding blocks (603) arranged at the bottom, the counterweight plate (6) is provided with counterweight slots, a plurality of counterweights (8) are arranged in the counterweight slots, the bottom of the counterweight plate (6) is provided with two second sliding slots (605), and a connecting plate (604) is fixedly mounted at the top of the counterweight plate (6).

5. The counterweight device of lorry-mounted crane according to claim 4, characterized in that the driving member (9) is a second cylinder, and a piston rod of the second cylinder is connected with the connecting plate (604).

6. The counterweight device of an on-vehicle crane according to claim 1, wherein two sliding rods (703) are fixedly installed between two fixed plates (701) in the fixed assembly (7), the lead screw (702) is rotatably installed between the two fixed plates (701), fixed seats (706) are symmetrically arranged on two sides of the movable seat (705), and two baffles (708) are respectively slidably installed on the two fixed seats (706).

7. The counterweight device of a lorry-mounted crane according to claim 6, characterized in that two lifting cylinders (707) are further arranged in the fixing component (7), the two lifting cylinders (707) are respectively and fixedly installed on the same side of the two fixing seats (706), and piston rods of the two lifting cylinders (707) are respectively and fixedly connected with one side of the two baffles (708).

8. The counterweight device for lorry-mounted crane according to claim 1, characterized in that said supporting foot base (3) comprises a fixed arm (301), a telescopic arm (302) is slidably mounted in said fixed arm (301), a hydraulic leg (304) is fixed at one end of said telescopic arm (302) far from said fixed arm (301), and a piston rod of said first oil cylinder (2) is rotatably mounted on one side of said fixed arm (301).

Technical Field

The invention relates to the technical field of crane counterweights, in particular to a counterweight device of a lorry-mounted crane.

Background

In the prior art, the counterweight of the lorry-mounted crane is generally directly fixedly mounted on the crane body, and the position of the counterweight is a fixed point. If joining in marriage the key point and can improve hoisting weight behind, nevertheless can make lorry crane focus too behind when the hoist is unloaded, influence the safety of lorry crane travel in-process, when joining in marriage the weight of the internal balance weight of key simultaneously and can not adjust, can't increase the weight of lifting, when adopting the counter weight device of addable weight, the balancing weight needs artificial locking of going, has reduced the efficiency of work.

Disclosure of Invention

The invention aims to provide a counterweight device of a lorry-mounted crane, which solves the following technical problems:

(1) the gravity center of the lorry-mounted crane cannot be adjusted, so that the driving is influenced;

(2) the balancing weight is difficult to fix, and the artificial locking work efficiency is low.

The purpose of the invention can be realized by the following technical scheme:

a counterweight device of a lorry-mounted crane comprises a vehicle body and a crane boom rotationally connected with the vehicle body, wherein a plurality of supporting foot seats used for supporting the vehicle body are arranged on two sides of the vehicle body, the supporting foot seats are rotationally arranged on the vehicle body through one oil cylinder, and one side of the crane boom is fixedly connected with a counterweight mechanism;

the counterweight mechanism comprises a shell, a counterweight disc and a driving piece for driving the counterweight disc to move, the counterweight disc is slidably mounted on the shell, and a plurality of counterweight blocks and fixing assemblies for fixing the counterweight blocks are arranged in the counterweight disc;

the fixed subassembly is including removing the seat, remove seat threaded connection on the lead screw, it all is provided with the baffle of liftable to remove seat both sides.

According to a further scheme of the invention, the shell is internally provided with a containing groove, sliding grooves I are symmetrically formed in two sides of the bottom of the containing groove, limiting grooves are symmetrically formed in two sides of the containing groove, and an opening is formed in the bottom of the containing groove.

As a further scheme of the invention, two sides of the counterweight plate are symmetrically provided with limiting rods, the two limiting rods are respectively installed in the two limiting grooves in a sliding manner, and hydraulic buffers are fixedly installed on the same sides of the two limiting rods.

As a further scheme of the invention, the counterweight plate is slidably mounted on the two sliding grooves I through the two sliding blocks arranged at the bottom, the counterweight plate is provided with a counterweight groove, the counterweight blocks are arranged in the counterweight groove, the bottom of the counterweight plate is provided with the two sliding grooves II, and the top of the counterweight plate is fixedly provided with the connecting plate.

As a further scheme of the invention, the driving piece is a second oil cylinder, and a piston rod of the second oil cylinder is connected with the connecting plate.

As a further scheme of the invention, two sliding rods are fixedly installed between two fixed plates in the fixed assembly, the screw rod is rotatably installed between the two fixed plates, fixed seats are symmetrically arranged on two sides of the movable seat, and the two baffles are respectively and slidably installed on the two fixed seats.

As a further scheme of the invention, two lifting cylinders are further arranged in the fixing assembly, the two lifting cylinders are respectively and fixedly arranged at the same side of the two fixing seats, and piston rods of the two lifting cylinders are respectively and fixedly connected with one sides of the two baffles.

As a further scheme of the invention, the supporting foot seat comprises a fixed arm, a telescopic arm is slidably mounted in the fixed arm, a hydraulic supporting leg is fixed at one end of the telescopic arm, which is far away from the fixed arm, and a piston rod of the oil cylinder is rotatably mounted at one side of the fixed arm.

The invention has the beneficial effects that:

(1) according to the counterweight device of the lorry-mounted crane, the counterweight mechanism is arranged, the driving piece arranged in the counterweight mechanism is used for driving the counterweight disc to slide on the shell, the movable counterweight disc is used for adjusting the gravity center of the lorry-mounted crane, so that the counterweight device is convenient to adapt to different working states, the lifting weight of the crane is improved due to backward movement of the gravity center, the forward movement of the gravity center is realized, and the stability of the lorry-mounted crane in the driving process is improved;

(2) through set up the balancing weight in the balancing weight dish, the balancing weight dish of adjustable counter weight, be convenient for improve the weight of lifting by crane, the practicality of device has been improved, the fixed subassembly that the balancing weight bottom set up for fixed balancing weight, avoid the balancing weight dish to remove the in-process, the balancing weight that the counter weight inslot was not fixed removes thereupon, thereby cause slippage and the skew of balancing weight, influence the operation of hoist, the baffle of liftable makes things convenient for getting of balancing weight to put, the fixed balancing weight inslot of being convenient for simultaneously superposes into the balancing weight block group of co-altitude.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a counterweight device of a lorry-mounted crane of the invention;

FIG. 2 is a top plan view of the vehicle body of the present invention;

FIG. 3 is a schematic structural view of the counterweight mechanism of the present invention;

FIG. 4 is a schematic structural view of the housing of the present invention;

FIG. 5 is a schematic view of the construction of the weight plate of the present invention;

FIG. 6 is a schematic structural view of the fixing assembly of the present invention;

FIG. 7 is a schematic structural diagram of the stand according to the present invention.

In the figure: 1. a vehicle body; 2. a first oil cylinder; 3. a supporting foot seat; 301. a fixed arm; 302. a telescopic arm; 303. a telescopic cylinder; 304. a hydraulic leg; 4. a counterweight mechanism; 5. a housing; 501. a limiting groove; 502. a first sliding groove; 503. an opening; 6. a weight plate; 601. a limiting rod; 602. a hydraulic buffer; 603. a slider; 604. a connecting plate; 605. a second sliding groove; 7. a fixing assembly; 701. a fixing plate; 702. a lead screw; 703. a slide bar; 704. a drive motor; 705. a movable seat; 706. a fixed seat; 707. a lifting cylinder; 708. a baffle plate; 8. a balancing weight; 9. a drive member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

Referring to fig. 1-7, the invention is a counterweight device of a lorry-mounted crane, comprising a vehicle body 1 and a boom rotatably connected with the vehicle body 1, wherein a plurality of supporting foot seats 3 for supporting the vehicle body 1 are arranged on two sides of the vehicle body 1, a plurality of oil cylinders 2 are arranged on the vehicle body 1, the plurality of oil cylinders 2 correspond to the plurality of supporting foot seats 3 one by one, an end part of each oil cylinder 2 is rotatably mounted on the vehicle body 1, a piston rod of each oil cylinder 2 is rotatably mounted on the supporting foot seat 3, the supporting foot seats 3 are rotatably mounted on the vehicle body 1 through the corresponding oil cylinders 2, a counterweight mechanism 4 is fixedly connected with one side of the boom, the counterweight mechanism 4 comprises a shell 5, a counterweight disc 6 and a driving part 9 for driving the counterweight disc 6 to move, the driving part 9 is fixedly mounted on the top of the shell 5, the driving part 9 can be a second oil cylinder or a cylinder, and other driving devices, the driving part 9 is used for driving the counterweight disc 6 to slide in the shell 5, and then the position of the counterweight plate 6 on the vehicle body 1 is adjusted, the gravity center of the vehicle body 1 is conveniently adjusted, and a fixing component 7 for fixing a counterweight block 8 is arranged in the counterweight plate 6.

A containing groove is formed in the shell 5, sliding grooves I502 are symmetrically formed in two sides of the bottom of the containing groove, limiting grooves 501 are symmetrically formed in two sides of the containing groove, an opening 503 is formed in the bottom of the containing groove, and the opening 503 is formed between the two sliding grooves I502;

the bilateral symmetry of the counterweight disk 6 is provided with limiting rods 601, two limiting rods 601 are respectively slidably mounted in two limiting grooves 501, the equal fixed mounting of two limiting rod 601 homonymies has a hydraulic buffer 602, the hydraulic buffer 602 is used for buffering the impact between the limiting rods 601 and the limiting grooves 501, avoid hard impact between the limiting rods 601 and the limiting grooves 501 to cause the damage of the counterweight disk 6 and the shell 5, the bilateral symmetry of the bottom of the counterweight disk 6 is provided with sliding blocks 603, the two sliding blocks 603 are slidably mounted on two sliding grooves 502 arranged in the shell 5, counterweight grooves are formed in the counterweight disk 6, a plurality of counterweight blocks 8 are arranged in the counterweight grooves, two sliding grooves two 605 are formed in the bottom of the counterweight disk 6, a connecting plate 604 is fixedly mounted at the top of the counterweight disk 6, and a piston rod of a cylinder is fixedly connected with one side of the connecting plate 604.

The fixing component 7 comprises two fixing plates 701, the fixing component 7 is fixedly arranged at the bottom of the counterweight plate 6 through the two fixing plates 701, two sliding rods 703 are fixedly arranged between the two fixing plates 701, one side of one fixing plate 701 is fixedly provided with a driving motor 704, an output shaft of the driving motor 704 penetrates through the fixing plate 701 to be connected with the end part of a screw 702, the screw 702 is rotatably arranged between the two fixing plates 701, the screw 702 is in threaded connection with a moving seat 705, the moving seat 705 is slidably arranged on the two sliding rods 703, two sides of the moving seat 705 are symmetrically provided with fixing seats 706, two fixing seats 706 are slidably provided with baffle plates 708, the same side of the two fixing seats 706 is provided with a groove, a lifting cylinder 707 is fixedly arranged in each groove, a piston rod of the lifting cylinder 707 is fixedly connected with one side of the baffle plate 708, the lifting cylinder 707 is started, the piston rod of the lifting cylinder 707 drives the baffle plates 708 to lift, the lifting baffle plates 708 facilitate taking and placing of the counterweight 8, meanwhile, the clump weight 8 groups with different heights can be conveniently superposed in the fixed counterweight groove, the driving motor 704 is started, the output shaft of the driving motor 704 drives the screw rod 702 to rotate, the screw rod 702 rotates to drive the movable seat 705 to slide on the sliding rod 703, and then the baffle 708 on the fixed seats 706 on the two sides of the movable seat 705 is driven to move, the baffle 708 slides in the sliding groove two 605 at the bottom of the counterweight plate 6, and then the clump weight 8 is fixed in the counterweight groove, so that the situation that the counterweight plate 6 moves in the process, the clump weight 8 which is not fixed in the counterweight groove moves along with the counterweight groove, and the slippage and the offset of the clump weight 8 are caused, and the counterweight of the crane is influenced.

Support foot stool 3 includes fixed arm 301, 2 piston rods of hydro-cylinder rotate and install in fixed arm 301 one side, slidable mounting has telescopic arm 302 in fixed arm 301, be provided with telescopic cylinder 303 in the fixed arm 301, telescopic cylinder 303 piston rod fixed connection is in telescopic arm 302 one end, telescopic cylinder 303 one end is kept away from to telescopic arm 302 is fixed with hydraulic leg 304, start hydro-cylinder 2, one 2 piston rods of hydro-cylinder drive fixed arm 301 and rotate on automobile body 1, when a plurality of fixed arms 301 rotate to certain angle, start telescopic cylinder 303, telescopic cylinder 303 piston rod drives telescopic arm 302 and slides in fixed arm 301, telescopic arm 302 extends the back, start the hydraulic leg 304 of telescopic arm 302 tip, hydraulic leg 304 contacts with ground and fixes automobile body 1.

Referring to fig. 1 to 7, the counterweight device of the lorry-mounted crane of the embodiment works as follows:

the method comprises the following steps: when the vehicle body 1 moves to a lifting point, starting the first oil cylinder 2, driving a piston rod of the first oil cylinder 2 to drive the fixed arm 301 to rotate on the vehicle body 1 to a certain angle, starting the telescopic cylinder 303, driving a telescopic arm 302 to slide in the fixed arm 301 by a piston rod of the telescopic cylinder 303, driving the telescopic arm 302 to extend to a required length, starting a hydraulic support leg 304 at the end part of the telescopic arm 302, and enabling the hydraulic support leg 304 to be in contact with the ground and fix the vehicle body 1;

step two: when the crane boom lifts heavy objects, the second oil cylinder is started, a piston rod of the second oil cylinder drives the counterweight plate 6 at the bottom of the connecting plate 604 to slide in the shell 5, so that the gravity center of the counterweight mechanism 4 is integrally moved backwards, the lifting weight of the crane boom is improved, when the vehicle body 1 is unloaded, the second oil cylinder drives the counterweight plate 6 to move forwards, the stability of the vehicle body 1 is improved, the driving motor 704 is started, and an output shaft of the driving motor 704 drives the screw rod 702 to rotate;

step three: when the counterweight weight needs to be added, the lifting cylinder 707 is started, the piston rod of the lifting cylinder 707 drives the baffle 708 to be lowered, and then the counterweight 8 is added into the counterweight groove, after the counterweight 8 is added, the lifting cylinder 707 drives the baffle 708 to rise to the height after the counterweight 8 is stacked, the driving motor 704 is started, the output shaft of the driving motor 704 drives the screw 702 to rotate, the screw 702 rotates to drive the moving seat 705 to slide on the sliding rod 703, and then the baffle 708 on the fixing seats 706 on the two sides of the moving seat 705 is driven to move, the baffle 708 fixes the counterweight 8 into the counterweight groove, and the counterweight 8 is fixed.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.