RU83770U1 - CAR HYDRAULIC LIFT AND WORK LIFT PLATFORM - Google Patents

Abstract

1. A hydraulic car lift containing a chassis on the running front and rear wheels, a telescopic boom is installed on the lifting and swinging frame of the support base located on the chassis between the running front and rear wheels, with the possibility of moving from the transport folded position to the working one - unfolded, which has a working platform mounted on the bracket, in a transport position located above the car cabin, while the telescopic boom is connected to the lifting cylinder m of lifting and rests in a transport position on a rack located in front of the supporting base, and the supporting base contains sliding front and rear supports, characterized in that the telescopic boom is four-section, the lifting hydraulic cylinder is located below the boom, and the electric cables and hydraulic pipes are located inside boom sections. ! 2. Hydraulic car lift according to claim 1, characterized in that the retractable front and rear supports are located at an angle relative to the longitudinal and transverse axes of the car lift. ! 3. Hydraulic car lift according to claim 1, characterized in that it is equipped with a remote control located in the transport position in the electrical compartment on a support base. ! 4. The hydraulic car lift according to claim 1, characterized in that the control of the telescopic boom is proportional to the electro-hydraulic. ! 5. The working platform of the automobile hydraulic lift, made in the form of a box, characterized in that the box is made transformable and consists of two sections, of which

Description

The utility model relates to hoisting-and-transport mechanisms, namely to automobile hydraulic elevators, and serves to move people and goods on work platforms from one level to another.

Known lifting device containing a self-propelled chassis, the drive of which provides its movement in the front and rear directions. A rotary platform is mounted on the chassis, horizontally rotated 180 ° between the front and rear positions. A sliding boom mounted on a turntable can rotate horizontally relative to the chassis. The boom faces the front and rear ends of the chassis when moving between the front and rear positions. An operator tower is mounted on the free end of the boom. On the tower there is a device control mechanism that the operator acts on (see US Pat. No. 5107955, IPC B66F 11/04, publ. 04/28/1992). The disadvantage of this lifting device is the low service area and the relatively low safety of its maintenance.

A device is known for lifting a working platform (cradle) mounted on a vehicle and containing a base, in the center of which a supporting platform is mounted, driven in rotation around the supporting axis in two directions by means of a drive gear, which is in constant engagement with the ring gear located inside the supporting platform, and equipped with two vertical brackets, to which the first pair of levers is attached, forming the first of the four mast sections for lifting the working platform mounted on the top Onze fourth mast sections, wherein the apparatus is adapted to

vertically oriented jacks to support the device with a raised mast, while the base contains a steel box-shaped frame X-shaped, with each arm of the X-shaped frame made telescopic. The second mast section contains a box lever and a stretch, which consists of two rectangular sections of different lengths and widths. The third mast section contains a box lever, one end of which is pivotally attached to the support element, and the other is connected to the fourth mast section by means of an additional support element (see RF patent No. 2038286, MPK B66F 11/04, published on June 27, 1995).

A well-known car lift containing a telescopic boom mounted on a vehicle platform with the ability to rotate from an inclined transport position to a vertical work platform, articulated from the main boom section, and a device for securing boom sections (see Ulanov R.N., Scherbakov V. D. Car lifts and forklifts, M., "Higher School", 1977, p.17-18).

Known hydraulic automobile lift containing a handle with a telescopic boom mounted on a rotary column of the support frame with the possibility of transfer from the transport folded position to the working unfolded, the handle pivotally articulated with the base of the boom having a retractable section, a working platform suspended from the boom, which is equipped with a sensor its position relative to the horizon and its orientation system with an actuator, outriggers and a pump for supplying the working fluid to the hydraulic system under puller (UK patent GB 1358850, IPC B66F 11/04, publ. 03.07.1974).

Known car lift containing a chassis on the running front and rear wheels, a working platform (cradle) mounted on an arm, a telescopic boom with a head mounted on a frame of a rotary base, connected to it by a lifting cylinder and

based on the landing gear in a transport position, while the swivel base is placed on a support base mounted on the chassis and containing retractable front and rear legs, the retractable front legs are located at an angle of 75-80 ° relative to the longitudinal and transverse axes of the car lift. The swivel base is placed on the chassis between the front and rear wheels, and the bracket of the working platform (cradle) located on the rear side is pivotally connected to the swivel bracket coaxially located relative to each other, with the telescopic boom head and the swivel bracket pivotally connected to each other by the ends of the levers with the formation of a parallelogram mechanism having a hydraulic cylinder for its movement (utility model patent No. 14208, IPC B66F 11/04, publ. 10.07.2000).

Known hydraulic car lift containing a handle with a telescopic boom mounted on a rotary column of the support frame with the possibility of transfer from a transport folded position to a working unfolded, and the handle is articulated with the base of the boom having a retractable section, a cradle suspended from the boom, which is equipped with a position sensor its relative to the horizon and its orientation system with an actuator, outriggers and a pump for supplying the working fluid to the hydraulic system emnika. The boom is equipped with a second pull-out section, to the head of which a limit switch is attached for signaling the cradle fastening, made removable, the cradle is equipped with a signaling device that detaches it from the ground and is installed on its lower part and has a load limit force limiter in the cradle located in its lower part . The sensor is mounted on a structure consisting of upper and lower bases and ties forming a hinged parallelogram to transfer the load to this

sensor, and connected to a V-shaped bracket pivotally attached to the fork of the working platform (cradle) connected to the head of the second pull-out section. The first retractable section is equipped with a limit switch to limit the cradle's lifting height, end supports for signaling the installation of supports are installed on the outriggers, and a second hydraulic pump is installed on the vehicle, which serves to supply working fluid to the cradle's orientation system, the lift is equipped with detachable connections of electrical and hydraulic equipment to disconnect the working platforms (cradles) in the operating mode of the elevator as a manipulator and attachment to the head of the second pull-out section in this mode of the hook suspension and ogre the limiter with the load in the aforementioned mode, which is mounted on a rotary column and has a pressure sensor that works when the load is exceeded when lifting the load. The invention provides increased ease of use of the elevator by ensuring its use in the mode of a crane-manipulator and the elevator mode, and also provides increased security (RF patent No. 2199484, IPC B66F 11/04, publ. 02.27.2003).

A hydraulic telescopic lift is known, the closest in technical essence to the claimed one and adopted as a prototype, containing an arrow made of telescopically connected to each other a fixed outer, movable middle and inner sections, the outer section being pivotally connected to the boom lifting hydraulic cylinder and a rotary stand mounted on the base mounted on the chassis frame of the car, and the inner section is pivotally connected by the free end to the working platform, the hydraulic cylinder moves the middle section and moving the actuator and the inner section. The drive movement of the inner section is made in the form of a hydraulic cylinder mounted in the inner cavity of the sections parallel to the specified hydraulic cylinder

moving the middle section and pivotally connected by a rod to the inner section. Each of the section moving cylinders is pivotally mounted on axles fixed to the middle section, the cylinder of the moving section middle section being pivotally connected to the outer section, and the piston cavities of the section moving hydraulic cylinders are connected by a pipe that is equipped with a matching valve. A hole is made on the upper shelf of the outer section, in which a clamp is installed perpendicular to the longitudinal axis of the sections, made in the form of a cylinder with an axially movable rod and a compression spring with a flat on the end for engaging with a stop, which is installed at the end of the middle section, said rod end mounted rollers for interaction with the tip, which is installed on the end of the inner section (RF patent No. 2108280, IPC B66F 11/04, publ. 04/10/1998). The known device has large dimensions in the transport position, not stable enough and not safe during maintenance.

The technical result, which the proposed utility model is aimed at, is to improve operational performance by reducing the size of the device, increasing the stability of the machine and the safety of maintenance of the lift.

The technical result is achieved by the fact that in the hydraulic car lift containing the chassis on the running front and rear wheels, on the lifting and swinging frame of the support base located on the chassis between the running front and rear wheels, there is a telescopic boom, with the possibility of moving from the transport folded position to unfolded working, on which the working platform is suspended, located in the transport position above the car cabin, while the telescopic boom is connected to the lifting frame-latitude lift cylinder and is supported in

transport position to the rack located in front of the support base, and the support base contains sliding front and rear supports, the new is that the telescopic boom is made four-section, the lifting hydraulic cylinder is located below the boom, the electric cables and hydraulic pipes are located inside the boom sections.

Retractable front and rear bearings are located at an angle relative to the longitudinal and transverse axes of the car lift.

The hydraulic car lift is equipped with a remote control located in the transport compartment in the electrical compartment on a support base.

The control of the telescopic boom is proportional electro-hydraulic.

The working platform of the automobile hydraulic lift is made in the form of a transformable box, consisting of two sections, of which the lower has a bottom and side walls, and the upper has side walls, while the sections are interconnected via side racks with a hinge mechanism equipped with a latch, with the possibility of rotation 180 ° of the upper section and folding it under the lower section.

Under the lower section of the working platform, insulators are installed, and the surface of the rail of the upper section is lined with low-heat-conducting material.

A control panel is installed on the fence of the upper section of the working platform and there are mounting points for the carabiners of the working safety belts.

Figure 1 - General view of the lift hydraulic TA-22 in the transport position; figure 2 is a General view of the lift in operating position; figure 3 - working platform in transport position; figure 4 - working platform in the working position; 5 is a view of the landing opening of the working platform; 6 is a cross section of a telescopic boom.

Here: 1 - chassis; 2 - supporting base; 3 - lifting and swiveling frame; 4 - telescopic arrow; 5 - working platform; 6 - front outriggers; 7 - rear outriggers; 8 - flooring; 9 - clamps of supports; 10 - a superstructure on which the rotary support 11 is mounted with a hydraulic motor 12; 13 - fencing base support 2; 14 - cargo compartment of the middle part of the base of the support 2 with hinged sides; 15 - compartment electrical equipment on the starboard side under the deck 8 in the rear of the base support 2; 16 - remote control, in the transport position is located inside the compartment of electrical equipment 15; 17 - stand supporting telescopic boom 4, located in front of the base of the support 2; 18 - node fixing the boom in the transport position; 19 - a tank of a hydraulic system; 20 - wheel chocks; 21 - a rear beam installed in the rear of the base of the support 2; 22 - hydraulic cylinder tracking system orientation of the working platform 5; 23 - bracket for mounting the hydraulic cylinder 24 lifting the boom 4; 25 - an arm of an arrow 4; 26 - a casing covering the hydraulic system of the lifting-rotary frame 3; 27, 28, 29, 30 - sections of the boom 4 (figure 1); 31, 32 - respectively, the upper and lower duct sections of the boom (Fig.6); 33 - telescoping hydraulic cylinder (figure 1); 34 - hydraulic cylinder orientation of the working platform 5; 35 - articulated mechanism of the working platform 5 (Fig.3, 4); 36 - fencing platform 5; 37 - lining of the railing of the platform 5; 38 - limit load limiter; 39 - insulators; 40 - clamps; 41 - control panel; 42 - fastening carbines safety belts workers (Fig.3, 4); 43 - the fence of the landing opening of the working platform 5 (figure 5); 44 - side racks of the upper and lower sections of the working platform with a swivel mechanism 35 (Fig.3, 4); 45 - bracket mounting the working platform 5 to the head of the upper section 30 of the telescoping boom 4.

Hydraulic car lift TA-22 with an electrically insulated working platform with a lifting capacity of 200 kg and

a working field with a height of 22 m and a reach of 8 m is designed to lift people with tools and materials to a height when performing electrical, construction, maintenance and other types of work.

The hydraulic car lift contains a chassis 1 on the running front and rear wheels, a telescopic boom 4 mounted on a lifting and swinging frame 3 of the support base 2, located on the chassis 1 between the running front and rear wheels. The telescopic boom 4 is mounted with the possibility of moving it from the transport folded position to the working - unfolded position, on it on the bracket 45 a working platform 5 is fixed, in the transport position located above the car cabin. The telescopic boom 4 is connected to a lifting and swinging frame 3 with a lifting hydraulic cylinder 24 and is supported in the transport position on a rack 17 located in front of the support base 2. The telescopic boom 4 is made of four sections, has sections 27, 28, 29, 30. The telescoping hydraulic cylinder 33 is located below, and the electric cables and hydraulic pipes are inside the boom sections 4. The support base 2 comprises retractable front 6 and rear 7 supports located at an angle relative to the longitudinal and transverse axes of the car lift.

The hydraulic car lift is equipped with a remote control 16 located in the transport position in the electrical compartment 15 on the supporting base 2.

The control of the telescopic boom 4 is proportional to the electro-hydraulic (the deviation of the governing body corresponds to the speed of the executive part of the lift).

The supporting base 2 (Fig. 1) is a welded box-section construction with outrigger supports 6 and 7 and floor 8. The front supports 6 are carried forward at an angle to the base platform, thereby increasing the support contour. Outriggers 6 and 7

telescopic, box section. The extension of the outriggers 6 and 7 is carried out using hydraulic cylinders that are installed inside them. In the transport position, the supports 6 and 7 are fixed from involuntary extension by the clamps 9.

On the basis of the supporting 2 (Fig. 1) in the rear there is a superstructure 10, on which a rotary support 11 with a hydraulic motor 12 is mounted.

A pivoting-swinging frame 3 is mounted on a pivoting support 11 with a hydraulic motor 12. A guard 13 is installed on two sides of the base of the supporting 2 (Fig. 2). In the middle part of the base of the supporting 2 there is a cargo compartment 14 with hinged sides. On the starboard side under deck 8 in the rear of the base of support 2, from the bottom there is a compartment for electrical equipment 15 with an external control panel 16. In front of the base of support 2 there is a support post 17 of boom 4 with a fixing unit in transport position 18 and a hydraulic system tank 19 is installed. anti-recoil stops are installed 20. At the rear of the base of the support 2, a rear beam 21 is installed.

The lifting and swinging frame 3 is a welded structure with box-section walls and with a rear sheet wall. The tracking cylinder of the orientation system 22 of the working platform 5 is mounted on the right wall of the lifting-rotary frame 3. On the bracket 23, one side is attached to the lifting cylinder 24 of the boom 4, the rod of which is mounted on the bracket 25 of the boom 4. A casing 26 is installed on the rear sheet wall to cover the frame hydraulic system tilt-up 3.

Telescopic boom 4 (figure 1) of the lift is made four-section. The boom sections 27, 28, 29, 30 of the welded construction of the box section are made of two upper 31 and lower 32 U-shaped boxes (Fig.6).

The telescoping mechanism, the laying of electric cables, hydraulic pipes and hoses is located inside sections 27, 28, 29, 30 of the boom 4. The telescoping hydraulic cylinder 33 is located under the boom 4.

A working platform 5 is attached to the head of the upper section 30 of the boom 4 on the bracket 45 and the orientation cylinder 34 of the working platform 5 is located. In the middle part of the boom section 27, there is a bracket 25 for attaching the rod of the telescoping hydraulic cylinder 33 of the boom 4.

The working platform 5 of the elevator (FIGS. 3 and 4) is folding, welded, made in the form of a box consisting of two sections, of which the lower has a bottom and side walls, and the upper has side walls, while the sections are interconnected via side racks 44 with a hinge mechanism 35 provided with clamps 40, with the possibility of rotation of the upper section by 180 ° and folding it under the lower section.

Under the lower section of the working platform 5, insulators 39 are installed, and the surface of the railing of the upper section (Fig. 3) is lined with low-conductivity material 37 and is convenient for grasping by hand.

On the fence of the upper section of the working platform 5, a control panel 41 is installed and there are attachment points for the carabiners of the working safety belts 42.

In the attachment point of the working platform 5 and boom 4, a limit load limiter 38 is installed.

Works hydraulic car lift as follows.

Translation of the lift from transport to working position is as follows.

The elevator is installed in the chosen place, manual clips are removed from the outrigger supports 6 and 7 and the boom.

The hydraulic lift is raised on the outrigger supports 6 and 7 to a height sufficient to unload the chassis springs 1. To do this, use the lower hydraulic circuit, and after setting the outrigger supports 6 and 7, it is turned off.

Turns on the upper hydraulic circuit (lifting and swiveling base 2 and boom 4) and the telescopic boom 4 is lifted from the support strut 17 and is pulled to the side (Fig. 2). After lowering the boom 4 down, the working platform 5 is transferred from the transport folded position (Fig. 3) to the working one, in which the upper section is rotated 180 °, increasing the height of the working platform 5, and is fixed in this position by the latches 40 (Fig. 4). The working platform 5 lowers to the landing position and people are planted through the landing opening, which has a guard 43 (Fig. 5). Telescoping boom 4 is the lifting platform working 5 with people to the required height for the work. The departure of boom 4 in the working field is limited automatically. The elevator is controlled from the lower remote control located in the electrical compartment 15, or from the remote control 41 mounted on the guard 36 of the working platform 5 (Fig. 4).

The transfer of the lift from the worker to the transport position is as follows.

Using the upper hydraulic circuit, the boom 4 with the working platform 5 is folded and lowered to a distance sufficient for safe landing of people. After disembarking people, the working platform 5 is transferred to the transport position (Fig. 3), while its upper section is pivoted by a hinge mechanism 35 through 180 °, is installed under the lower section and is fixed by latches 40.

Arrow 4 in the folded form is raised and mounted on a stand supporting 17, fixed with clamps 18.

The remote control panel 16 controls the lift is removed in the compartment for electrical equipment 15.

The lower hydraulic circuit is turned on and the elevator is lowered on the outrigger supports 6 and 7. After the outriggers 6 and 7 are completely folded out, the clamps 9 are installed from the worker to the transport position.

Thus, the proposed automotive hydraulic lift differs from the known devices of the same purpose in a compact design, high reliability, due to:

- implementation of the telescopic boom 4 four-section, which allows to make the dimensions of the lift compact and leads to better maneuverability in a city;

- the location of the telescoping hydraulic cylinder of sections 27, 28, 29, 30 of the boom 4 from below under the boom, which protects it from damage during operation and increases the convenience of inspection and maintenance;

- laying electric cables and hydraulic pipes inside sections 27, 28, 29, 30 of boom 4, which allows you to protect them from damage and improve the appearance of the boom;

- performing retractable front and rear supports at an angle relative to the longitudinal and transverse axes of the car lift, which increases the stability of the lift;

- the presence of the remote bottom console 16, located in the compartment of electrical equipment 15, which allows you to work within a radius of 5 m from the elevator, to improve the convenience of controlling the elevator and improve the appearance of the frame of the lifting-rotary 3 due to the absence of a platform with a control panel on it;

- execution of the working platform 5 transformable, folding, which reduces the overall dimensions of the hydraulic car lift in the transport position.

Claims (7)

1. A hydraulic car lift containing a chassis on the running front and rear wheels, a telescopic boom is installed on the lifting and swinging frame of the support base located on the chassis between the running front and rear wheels, with the possibility of moving from the transport folded position to the working one - unfolded, which has a working platform mounted on the bracket, in a transport position located above the car cabin, while the telescopic boom is connected to the lifting cylinder m of lifting and rests in a transport position on a rack located in front of the supporting base, and the supporting base contains sliding front and rear supports, characterized in that the telescopic boom is four-section, the lifting hydraulic cylinder is located below the boom, and the electric cables and hydraulic pipes are located inside boom sections. 2. Hydraulic car lift according to claim 1, characterized in that the retractable front and rear supports are located at an angle relative to the longitudinal and transverse axes of the car lift. 3. Hydraulic car lift according to claim 1, characterized in that it is equipped with a remote control located in the transport position in the electrical compartment on a support base. 4. The hydraulic car lift according to claim 1, characterized in that the control of the telescopic boom is proportional to the electro-hydraulic. 5. The working platform of the automobile hydraulic lift, made in the form of a box, characterized in that the box is made transformable and consists of two sections, of which the lower has a bottom and side walls, and the upper one has side walls, while the sections are interconnected via side racks with a swivel mechanism equipped with clamps, with the possibility of rotation of the upper section by 180 ° and folding it under the lower section. 6. The working platform according to claim 5, characterized in that insulators are installed under its lower section, and the surface of the railing of the upper section of the platform is lined with low heat-conducting material. 7. The working platform according to claim 5, characterized in that a control panel is installed on the fence of the upper section of the working platform and there are mounting points for the carabiners of the working safety belts.