CN212799535U - Portable hoisting and conveying vehicle - Google Patents

Abstract

The utility model relates to an equipment conveyer for the electric power industry specifically is a portable jack-up conveying car. The technical problem that the existing lifting equipment for power production generally does not have a transmission function, and particularly cannot convey articles up and down is solved. A portable hoisting and conveying vehicle comprises a vehicle body supported by wheels with locking mechanisms, wherein the front end of the vehicle body is horizontally inwards in a concave structure; a pulley is installed at the front end of the lifting arm, a roller assembly positioned behind the concave structure is installed on the trolley body, and at least one steel wire rope is wound between the roller assembly and the pulley; a conveying object placing table is movably arranged on the steel wire rope; the vehicle body is provided with a driving device for driving the roller component to rotate.

Description

Portable hoisting and conveying vehicle

Technical Field

The utility model relates to an equipment conveyer for the electric power industry specifically is a portable jack-up conveying car.

Background

The reliability, safety and advancement of the operation of the hoisting equipment, which is essential key and important equipment for power production, are always highly valued by people. Hoisting equipment is often seen to hoist and mount disconnecting links, circuit breakers, transformer parts and the like on the electric power construction site. The working characteristics of the hoisting equipment are analyzed from the perspective of safety technology: 1. hoisting machines generally have a bulky structure and a relatively complex mechanism; 2. most hoisting machines must ensure that the road is smooth and firm and can operate in a large range. However, in the process of transforming the transformer substation in live-line operation, hoisting equipment cannot enter the station for hoisting operation due to the particularity of geographical positions and environments. If the conditions allow, the hoisting equipment can be used only when all equipment in the working area is powered off. If external factors such as narrow space and the like do not have hoisting, the knife switch and the switch can be installed and positioned only by manually lifting the hand, so that the labor, the material resources and the financial resources are extremely consumed, and the operation is unsafe.

In view of the above situation, there is a need to develop a lifting apparatus which is convenient to move, can adjust the height and length, is suitable for lifting and transporting a disconnecting link, a circuit breaker and accessories in a narrow space, reduces labor intensity, has a transporting function, and can transport objects upwards or downwards.

Disclosure of Invention

The utility model discloses a solve present power production and generally do not possess transfer function, especially unable technical problem who carries article from top to bottom with jack-up equipment, provide a portable jack-up conveying car.

The utility model discloses an adopt following technical scheme to realize: a portable hoisting and conveying vehicle comprises a vehicle body supported by wheels with locking mechanisms, wherein the front end of the vehicle body is horizontally inwards in a concave structure; the front end of the lifting arm is provided with a pulley, the vehicle body is provided with a roller assembly positioned behind the concave structure, and at least one steel wire rope is wound between the roller assembly and the pulley; a conveying object placing table is movably arranged on the steel wire rope; the vehicle body is provided with a driving device for driving the roller component to rotate.

The utility model discloses when upwards carrying article, through the inclination that electric hydraulic cylinder adjusted the lifing arm, the back that targets in place is adjusted, puts the thing platform with the conveying and installs on wire rope, puts article on the thing platform is put in the conveying, rotates through drive arrangement driving roller subassembly, drives wire rope and conveying and puts thing platform rebound, sends article to top assigned position, then drive arrangement driving roller subassembly antiport, puts thing platform moving back below with the conveying. When the utility model conveys articles downwards, the vehicle body is reversely placed on a high working platform, the lifting arm is extended downwards, the front end of the lifting arm is supported on the ground, the conveying object placing platform is arranged on the steel wire rope, and the articles are conveyed from top to bottom by the driving device driving the roller and the steel wire rope; the concave structure at the front end of the vehicle body can just place articles on the conveying object placing table. When the automobile body was placed, electric hydraulic cylinder was located the platform edge outside, can not take place to interfere with the platform. The roller component is positioned behind the concave structure, so that the steel wire rope can be guaranteed to bypass the front side and the rear side of the lifting arm, and the object placing table can be installed and objects can be conveyed when the vehicle body is overturned.

No matter the article is conveyed downwards or upwards, a counterweight can be placed behind the vehicle body according to the requirement to ensure the balance of the vehicle body.

Furthermore, the lifting arm consists of a plurality of sections of electric telescopic rods and a base, the base is hinged on the vehicle body, the inclination angle is adjusted through an electric hydraulic cylinder, and a pulley is installed on the electric telescopic rod at the foremost end; the roller assembly comprises a first roller and a second roller which are rotatably mounted on the vehicle body, a pair of steel wire ropes is arranged, each steel wire rope is wound on the first roller, one end of each steel wire rope is fixed on the first roller, the other end of each steel wire rope is wound on the first roller for a plurality of circles and then led out, and the steel wire ropes wind around the pulleys and then wind on the second roller and are fixed with the second roller; the driving device comprises a first motor and a second motor, wherein the first motor and the second motor are used for driving the first roller to rotate respectively; the motor control system also comprises a PLC controller used for controlling the first motor and the second motor; the PLC is also used for controlling the actions of the electric telescopic rod and the electric hydraulic cylinder; the vehicle body is provided with a mobile power supply and/or a power plug.

The lifting arm can stretch out and draw back, is convenient for adjust length. The angle is adjusted well through electric hydraulic cylinder earlier generally, then stretches out through the motor drive telescopic link on the PLC control electric telescopic handle, and the motor that two cylinders of PLC synchronous control were joined in marriage this moment rotates to second motor rotational speed is less than first motor, and wire rope is along with electric telescopic handle's stretching out and the extension, still twines gradually on the second cylinder simultaneously. Through the preset setting (combining the extending speed of the telescopic rod and the rotating speed of the motor), the steel wire rope can be ensured to be wound on the second roller just under the condition of extension, and the strength of the steel wire rope is kept. After the length of the electric telescopic rod is adjusted to a proper position, the PLC stops controlling the electric telescopic rod and the electric hydraulic cylinder to act, the rotating speeds of the first motor and the second motor are changed at the moment, the first roller and the second roller synchronously rotate, the steel wire rope and the conveying object placing table are driven to move upwards or downwards in a reciprocating mode, and conveying of objects is completed.

Furthermore, the end part of the electric push rod at the most front end is hinged with a lapping plate.

The lapping plate can be put on the platform of eminence, makes the lifing arm have more a strong point on the one hand, and on the other hand can make article carry the assigned position along the lapping plate, ensures that article avoid colliding with.

At least one antiskid bearing supporting table is installed below the vehicle body, and the antiskid bearing supporting table comprises a screw rod vertically installed on the vehicle body through threaded connection and a positioning block which is fixedly installed at the bottom of the screw rod and provided with a positioning pointed cone.

The antiskid bearing supporting table can position the trolley on the ground, so that the stability of the trolley is further improved.

The portable hoisting and conveying vehicle can be conveniently moved, not only can adjust the height and the length, but also is suitable for hoisting and conveying disconnecting links, circuit breakers and accessories in a narrow space, and reduces the labor intensity; and have the transfer function, put the thing platform through the conveying and can convey the article from top to bottom, because have certain radian and gradient, prevented that the article from falling and the unnecessary loss that causes. The movable height-adjustable loading and unloading device is suitable for various conditions, has a compact and simple structure, is convenient to use, can move, can adjust the height, and can also load, unload and convey materials, and by using the movable height-adjustable loading and unloading device, the labor intensity of workers can be reduced, the loading and unloading cost can be reduced, the damage of goods can be reduced, and the labor productivity can be improved.

Drawings

Fig. 1 is a schematic view of the structure of the present invention when conveying articles upward.

Fig. 2 is a schematic view of the structure of the present invention when conveying an article downward.

Fig. 3 is a schematic view of a top view structure of the vehicle body of the present invention.

Fig. 4 shows one of the schematic structural diagrams (side view) of the drum assembly and the wire rope according to the present invention.

Fig. 5 is a second schematic structural view (top view) of the drum assembly and the wire rope according to the present invention.

1-wheel with locking mechanism, 2-electric hydraulic cylinder, 3-lifting arm, 4-pulley, 5-steel wire rope, 6-conveying object placing table, 7-first roller, 8-second roller, 9-first motor, 10-second motor, 11-PLC controller, 12-lapping plate, 13-antiskid bearing support table, 14-buckle, 15-trolley pull rod, 16-worktable surface and 17-article.

Detailed Description

The lifting arm 3 consists of a plurality of sections of electric telescopic rods and a base, the base is hinged on the vehicle body and the inclination angle of the base is adjusted through an electric hydraulic cylinder 2, and a pulley 4 is arranged on the electric telescopic rod at the foremost end; the drum assembly comprises a first drum 7 and a second drum 8 which are rotatably mounted on the vehicle body, a pair of steel wire ropes 5 are arranged, each steel wire rope 5 is wound on the first drum 7, one end of each steel wire rope 5 is fixed on the first drum 7, the other end of each steel wire rope 5 is wound on the first drum 7 for multiple circles and then led out, and the steel wire ropes wind around the pulley 4, then wind around the second drum 8 and are fixed with the second drum 8; the driving device comprises a first motor 9 and a second motor 10, wherein the first motor 9 and the second motor 10 are respectively used for driving the first roller 7 to rotate; the device also comprises a PLC (programmable logic controller) 11 for controlling the first motor 9 and the second motor 10; the PLC 11 is also used for controlling the actions of the electric telescopic rod and the electric hydraulic cylinder 2; the vehicle body is provided with a mobile power supply and/or a power plug.

As shown in fig. 3, the electric telescopic rod may be sleeved with a corresponding telescopic joint, for example, a telescopic structure is adopted, and the telescopic rods are nested one-stage at a first stage and driven by the telescopic joint respectively, so as to increase the surface area and meet the requirement of two steel wire ropes for conveying articles; or the electric telescopic rod is directly made into a relatively flat structure.

The front end of the foremost electric telescopic rod is also hinged with a lapping plate 12.

At least one antiskid bearing support table 13 is installed below the vehicle body, and each antiskid bearing support table 13 comprises a screw rod vertically installed on the vehicle body through threaded connection and a positioning block with a positioning pointed cone and fixedly installed at the bottom of the screw rod. The handle is connected with above the screw rod, and the height of the screw rod is adjusted through the handle, so that the height and the positioning force of the positioning block are adjusted. Preferably, a pair of skid-proof support bases 13 may be symmetrically provided on the left and right sides of the vehicle body to balance the vehicle body.

The pulley 4 adopts a ball bearing; the wheels are universal wheels; the ball bearings are a pair and are arranged on a shaft at the front end of the lifting arm, and a steel wire rope is wound on each ball bearing.

The longitudinal section of the conveying object placing table 6 is of an L-shaped structure, at least one pair of buckles 14 are arranged at the bottom of the conveying object placing table 6, and the conveying object placing table is fixed on the pair of steel wire ropes 5 through the buckles 14; the first motor and the second motor adopt stepping motors; the electric telescopic rod is of two stages.

The front end of the trolley body is also provided with a trolley pull rod 15 for pulling the trolley to advance.

As shown in fig. 1, when an article is conveyed upwards, the electric hydraulic cylinder adjusts the angle of the lifting arm, the lapping plate at the front end of the electric telescopic rod is lapped on the working platform, the lapping plate is positioned at the front end of the pulley, and the lapping plate and the pulley do not interfere with each other; the conveying object placing tables are arranged on the paired steel wire ropes so as to ensure the stability of the conveying object placing tables; the antiskid supporting platform is supported on the ground and ensures the stability of the vehicle body together with the locked universal wheels. The steel wire rope reciprocates, returns after being conveyed to the object placing table, and conveys the next batch of objects again.

As shown in figure 2, when the trolley is conveyed downwards, the trolley is placed upside down, the lifting arm extends downwards, and the lapping plate is lapped on the ground. The vertical wall of the L-shaped conveying object placing table is arranged forwards (not shown in the figure), so that articles can be prevented from falling.

As shown in fig. 3, a pair of steel wire ropes are wound on the first and second drums and the pulley, and the lifting arm is installed in the concave structure, so that articles can be conveniently placed on the object placing table through the concave structure and conveyed downwards. Two cylinders are located behind the concave structure to ensure that the steel wire rope bypasses the front side and the rear side of the lifting arm.

As shown in fig. 4, the two rollers form a roller assembly, the steel wire rope winds around the pulley after winding around the first roller, and then winds around the second roller under the lifting arm, and the structure can realize reciprocating motion along with the expansion and contraction of the electric telescopic rod and the positioning of the telescopic rod by matching with the differential operation of the motor; a certain margin is reserved for the steel wire rope to be wound on the two rollers so as to ensure the steel wire rope to reciprocate.

As shown in fig. 5, the PLC controller controls the rotation speed of the two motors, and the pair of wire ropes extend around the pulley after passing around the first drum and then pass around the second drum (dotted line). Referring to fig. 4, a pair of buckles (which can be elastic clamps) is respectively arranged on the left and right of the conveying object placing table, and the number of the buckles is four, and the buckles are fixedly connected with a pair of parallel steel wire ropes, so that the stability of the object placing table is ensured.

The portable hoisting and conveying vehicle is provided with a PLC controller which controls the lifting of the electric hydraulic cylinder, the stretching of the electric telescopic rod and the advancing, retreating and emergency stop of the steel wire rope. The portable concave platform can be fixed on the ground, and can also be arranged on a high working platform (as shown in figure 2) to convey articles downwards; the electric hydraulic cylinder and the electric telescopic rod stretch back and forth under the control of a direct current 24V power supply, an alternating current power supply is connected with a motor through an internal power line to control the positive and negative rotation of the motor, and the motor impels the steel wire reel to rotate by force; goods are conveyed by the conveying object placing table by utilizing the positive and negative rotation of the motor. Of course, the first motor and the second motor can also be supplied by a mobile power supply carried by the vehicle body.

The working principle is as follows: 1. the portable hoisting and conveying vehicle is arranged on a construction site, and the vehicle is fixed by using the antiskid bearing support platform to prevent sliding; then the angle of the lifting arm is adjusted through an electric hydraulic cylinder, then the first motor and the second motor are controlled to rotate forwards, and the steel wire rope is conveyed outwards; simultaneously PLC controller control electric telescopic handle's motor synchronous start, electric telescopic handle outwards extends, because it is first, there is the difference in second motor rotational speed, wire rope on the first cylinder outwards extends on one side the winding on the second cylinder, can extend corresponding length along with electric telescopic handle's stretching out, and twine on the second cylinder under the circumstances of guaranteeing that wire rope has certain tension, continue to extend until table surface when the lifing arm, PLC control electric telescopic handle's motor and first, the stop motion of second motor, this work is accomplished.

2. The goods are carried. The PLC controls the steel wire rope to move forwards or backwards, the motor rotates forwards and backwards to move forwards and backwards, and goods on the goods placing table are pulled by the steel wire rope to reach the working platform. At this time, the first and second motors have the same rotation speed.

3. In a similar way, when the trolley is used up, the PLC controls the first motor and the second motor to reversely rotate to take up the steel wire rope, the electric telescopic rod retracts to the shortest distance, and then the electric hydraulic cylinder is restarted to retract, so that the operation is completed.

The rotating speeds of the first motor and the second motor are adjusted to be the same or have a difference value, and the first motor and the second motor are matched with the motor on the electric telescopic rod to complete the stretching and the reciprocating motion of the steel wire rope, and corresponding programs are easy to write and realize.

Claims (8)

1. A portable hoisting and conveying vehicle comprises a vehicle body supported by wheels (1) with locking mechanisms, and is characterized in that the front end of the vehicle body is horizontally inwards in a concave structure, a lifting arm (3) supported by an electric hydraulic cylinder (2) is mounted on the vehicle body, and the tail end of the lifting arm (3) is hinged in the concave structure of the vehicle body; a pulley (4) is installed at the front end of the lifting arm (3), a roller assembly positioned behind the concave structure is installed on the vehicle body, and at least one steel wire rope (5) is wound between the roller assembly and the pulley; a conveying object placing table (6) is movably arranged on the steel wire rope (5); the vehicle body is provided with a driving device for driving the roller component to rotate.

2. The portable lifting and conveying vehicle of claim 1, characterized in that the lifting arm (3) consists of a plurality of sections of electric telescopic rods and a base, the base is hinged on the vehicle body and the inclination is adjusted by an electric hydraulic cylinder (2), and a pulley (4) is mounted on the electric telescopic rod at the foremost end; the drum assembly comprises a first drum (7) and a second drum (8) which are rotatably mounted on the vehicle body, a pair of steel wire ropes (5) are arranged, each steel wire rope (5) is wound on the first drum (7), one end of each steel wire rope (5) is fixed on the first drum (7), the other end of each steel wire rope (5) is wound on the first drum (7) for multiple circles and then led out, and the steel wire ropes wind on the second drum (8) after bypassing the pulleys (4) and are fixed with the second drum (8); the driving device comprises a first motor (9) and a second motor (10), wherein the first motor (9) and the second motor (10) are used for driving the first roller (7) to rotate and the second roller (8) to rotate respectively; the device also comprises a PLC (11) used for controlling the first motor (9) and the second motor (10); the PLC (11) is also used for controlling the actions of the electric telescopic rod and the electric hydraulic cylinder (2); the vehicle body is provided with a mobile power supply and/or a power plug.

3. A portable lifting and transfer vehicle as claimed in claim 2, wherein the front end of the foremost telescopic motor is further hinged with a strap (12).

4. The portable hoisting and conveying vehicle as claimed in any one of claims 1 to 3, wherein at least one antiskid bearing support platform (13) is mounted below the middle part of the vehicle body, and the antiskid bearing support platform (13) comprises a screw rod vertically connected and mounted on the vehicle body through threads and a positioning block with a positioning pointed cone fixedly mounted at the bottom of the screw rod; a handle is connected above the screw rod.

5. A portable lifting and conveying vehicle as claimed in any one of claims 1 to 3, characterised in that the pulleys (4) are ball bearings; the wheels are universal wheels.

6. The portable hoisting and conveying vehicle as claimed in claim 2 or 3, wherein the longitudinal section of the conveying and storage platform (6) is in an L-shaped structure, and the bottom of the conveying and storage platform (6) is provided with at least one pair of buckles (14) which are fixed on the pair of steel wire ropes (5) through the buckles (14); the first motor and the second motor adopt stepping motors; the electric telescopic rod is of two stages.

7. A portable lifting and transfer vehicle as claimed in any one of claims 1 to 3, wherein a trolley pull rod (15) is mounted at the front end of the vehicle body.

8. A portable lifting and transfer vehicle as claimed in claim 4, wherein a trolley pull rod (15) is mounted at the front end of the vehicle body.

Images