CN211813311U

CN211813311U - Crawler-type lifting operation platform

Info

Publication number: CN211813311U
Application number: CN202020272009.9U
Authority: CN
Inventors: 秦海建; 李洪良; 滕树升
Original assignee: Weifang Wallin Machinery Equipment Co ltd
Current assignee: Weifang Wallin Machinery Equipment Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-10-30
Anticipated expiration: 2030-03-09

Abstract

The utility model provides a crawler-type lift work platform, its characterized in that: the lifting mechanism comprises a frame, a first swing arm, an operation platform, a lifting mechanism and a travelling mechanism, wherein one end of the first swing arm is movably connected with the upper part of the frame, the other end of the first swing arm is movably connected with the operation platform, the lower end of the lifting mechanism is connected with the frame, the upper end of the lifting mechanism is movably connected with the middle part of the first swing arm, and the travelling mechanism is connected with the lower part of the frame; the frame includes first swing arm installation department, and first swing arm installation department sets up in the one end outside that work platform was kept away from to running gear. The utility model has the advantages that: the mounting positions of the swing arms and the frame are arranged behind the traveling mechanism, so that the traditional machine type structure is changed, and the machine is more stable. And secondly, the frame is integrated and inclined, so that the machine type is more stable, and the force is more quickly removed. And thirdly, through the arrangement of each wheel in the track, the force unloading is further faster, and the machine type is more stable. And fourthly, the swing arm is adjustable, so that the operation platform is convenient to install, and the machine type is more attractive and practical. And fifthly, the control pipeline is connected in series and parts such as an overflow valve and the like are arranged, so that the control system is simpler in structure, smaller and more compact in machine type and more convenient to operate. And sixthly, all the parts are coordinated, so that the whole machine is more durable and convenient to use, is not easy to damage and is convenient to maintain.

Description

Crawler-type lifting operation platform

Technical Field

The utility model relates to a lift operation platform.

In particular to a crawler type lifting work platform.

Background

During agricultural operation such as orchard, forest garden, need remove lift platform auxiliary operation, however, traditional lift operation device such as crane is difficult to be used in low place such as orchard owing to the volume is great, and the lift operation device of present stage is difficult to guarantee the stability of model under the situation of reduction volume, easily causes operation personnel's security threat to and defect such as machine life-span is short.

At present, the operation of traditional lift operation platform is mostly realized controlling respectively through the hydraulic pump respectively with lifting device and running part intercommunication, and this kind of controlling means sets up has following defect: firstly, the oil pressure required by the lifting device is high, the walking part is small, if the lifting device and the walking part are controlled by different pressures, the function of a hydraulic pump needs to be improved or two hydraulic pumps are arranged, and the production cost and the maintenance cost are increased; secondly, the power consumption is large, and the oil consumption is large when the device is used.

In addition, most of the tracks are designed to be consistent in front-back height, so that a good force unloading function cannot be realized, and the operation platform is easy to overturn.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned conventional art's weak point, provide a simple durable crawler-type lift operation platform.

The purpose of the utility model is achieved through the following technical measures:

crawler-type lift work platform, its characterized in that: the lifting mechanism comprises a frame, a first swing arm, an operation platform, a lifting mechanism and a travelling mechanism, wherein one end of the first swing arm is movably connected with the upper part of the frame, the other end of the first swing arm is movably connected with the operation platform, the lower end of the lifting mechanism is connected with the frame, the upper end of the lifting mechanism is movably connected with the middle part of the first swing arm, and the travelling mechanism is connected with the lower part of the frame;

the frame includes first swing arm installation department, and first swing arm installation department sets up in the one end outside that work platform was kept away from to running gear.

The utility model provides a concrete optimization scheme, still includes the second swing arm, and second swing arm one end is articulated with the frame, and second swing arm one end is articulated with work platform, and the second swing arm is located first swing arm below, and the frame includes second swing arm installation department, and first swing arm installation department is located one side that work platform was kept away from to second swing arm installation department, and the quantity of second swing arm is one at least.

According to a specific optimization scheme, the length of the second swing arm is adjustable;

the second swing arm comprises a first connecting portion, a second connecting portion and a third connecting portion, one end of the second connecting portion is provided with a first thread, the other end of the second connecting portion is provided with a second thread, one end of the first connecting portion is hinged to the frame, the other end of the first connecting portion is provided with a third thread matched with the first thread, one end of the second connecting portion is hinged to the operation platform, and the other end of the second connecting portion is provided with a fourth thread matched with the second thread.

The utility model provides a concrete optimization scheme, running gear includes the track, be equipped with the action wheel in the track, the supporting wheel, regulating wheel and drive wheel, the action wheel is located regulating wheel and drive wheel top, the action wheel is located between first swing arm installation department and the operation platform, the supporting wheel is located regulating wheel and drive wheel top, the supporting wheel is located between action wheel and the operation platform, the regulating wheel is located and drive wheel parallel arrangement, the regulating wheel is located between operation platform and the supporting wheel, the drive wheel is located between regulating wheel and the action wheel, the quantity of drive wheel is one at least.

According to a specific optimization scheme, the number of the crawler belts is two, and the two crawler belts are symmetrically arranged;

the walking mechanism further comprises at least one walking executing piece, and the walking executing piece is in transmission connection with the driving wheel.

According to a specific optimization scheme, the walking mechanism comprises a first walking executing part and a second walking executing part, the first walking executing part is in transmission connection with one driving wheel, and the second walking executing part is in transmission connection with the driving wheel on the other side.

A specific optimization scheme is that the operation platform comprises a guardrail, a standing part, a sitting part and/or a storage frame.

A specific optimization scheme is characterized in that a frame comprises a base, wherein the upper part of the base is obliquely arranged, a first swing arm support is fixedly connected to the upper part of the base and is positioned at one end with a higher height of the base, a plurality of support beams are fixedly connected to the lower part of the base, at least one support beam is positioned at one end with a higher height of the base, and at least one support beam is positioned at one end with a lower height of the base;

the base is a bent integrated plate or the base is an integrated casting.

According to a specific optimization scheme, the lifting mechanism comprises a lifting executing piece, the lower end of the lifting executing piece is fixedly connected with the frame, and the upper end of the lifting executing piece is hinged with the middle part of the first swing arm;

the lifting control component comprises a hydraulic cylinder, an electric cylinder, a linear motor or an electric push rod.

A concrete optimization scheme also comprises a control system, wherein the control system comprises a hydraulic pump, an oil tank and a master control part;

the liquid inlet of the hydraulic pump is communicated with the oil tank, the liquid outlet of the hydraulic pump is communicated with the liquid inlet of the master control part, the liquid outlet of the master control part is communicated with the liquid inlet of the lifting mechanism, the liquid outlet of the lifting mechanism is communicated with the liquid inlet of the travelling mechanism, the liquid outlet of the travelling mechanism is communicated with the oil tank and/or the master control part, a first overflow valve is arranged between the hydraulic pump and the master control part, a second overflow valve is arranged between the master control part and the travelling mechanism, and a throttle valve is arranged between the master control part and the lifting mechanism;

the master control part comprises a valve block, a first reversing valve and a second reversing valve;

the first reversing valve and the second reversing valve are connected in series through a valve block, the valve block is respectively communicated with the hydraulic pump and the oil tank, the first reversing valve is communicated with the lifting mechanism, and the second reversing valve is communicated with the travelling mechanism;

the traveling mechanism also comprises a pilot valve handle, the pilot valve handle is communicated with the second reversing valve, and the pilot valve handle is communicated with the traveling executing parts or respectively communicated with the plurality of traveling executing parts;

the lifting mechanism also comprises a lifting control switch and a lowering control switch, wherein the lifting control switch is used for controlling lifting, and the lowering control switch is used for controlling lowering; the walking mechanism further comprises a walking safety control switch, and the walking safety control switch is used for controlling the walking mechanism to start and stop.

Owing to adopted above-mentioned technical scheme, compare with prior art, the utility model has the advantages that:

the mounting positions of the swing arms and the frame are arranged at the rear of the travelling mechanism, so that the traditional machine type structure is changed, and the machine is more stable, is not easy to vibrate, shake and turn over backwards.

And secondly, the frame is integrated and inclined, so that the machine type is more stable, and the force is more quickly removed.

And thirdly, through the arrangement of each wheel in the track, the force unloading is further faster, and the machine type is more stable.

And fourthly, the swing arm is adjustable, so that the operation platform is convenient to install, and the machine type is more attractive and practical.

And fifthly, the control pipeline is connected in series and parts such as an overflow valve and the like are arranged, so that the control system is simpler in structure, smaller and more compact in machine type and more convenient to operate.

And sixthly, all the parts are coordinated, so that the whole machine is more durable and convenient to use, has long service life, is not easy to damage and is convenient to maintain.

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Drawings

Fig. 1 is a schematic structural diagram of the crawler-type lifting operation platform of the present invention.

Fig. 2 is a schematic view of a local structure of the crawler-type lifting work platform of the present invention.

Fig. 3 is a schematic view of a local structure of the crawler-type lifting work platform of the present invention.

Fig. 4 is a schematic structural diagram of the frame of the present invention.

Fig. 5 is a schematic cross-sectional view of a second swing arm of the present invention.

Fig. 6 is a schematic structural diagram of the control system of the present invention.

Detailed Description

Example 1: as shown in the attached figures 1-6, the crawler-type lifting work platform comprises a frame, a swing arm, a work platform, a lifting mechanism, a walking mechanism and a control system.

The upper portion of the frame is movably connected with the swing arm, one end, far away from the frame, of the swing arm is movably connected with the operation platform, the lifting mechanism is respectively connected with the frame and the middle portion of the swing arm, the lifting mechanism can enable the swing arm to ascend or descend through stretching and retracting, the lower portion of the frame is connected with the walking mechanism, the control system is respectively connected with the lifting mechanism and the walking mechanism, and the control system can control the lifting mechanism and the walking mechanism to act.

Through the positional relationship of swing arm, frame, work platform, track 51, can transmit the power that the platform was lifted to the frame through the swing arm, the frame is with power dispersion and lift off to avoid work platform to turn over backward, and tremble and rock when lifting.

The frame comprises a base 11, a support beam 12 and a swing arm bracket 13.

The lower part of the base 11 is fixedly connected with the support beam 12, and the upper part of the base 11 is fixedly connected with the swing arm bracket 13, and in addition, the lower part of the base 11 can also be integrally connected. The upper part of the base 11 is obliquely arranged, and the swing arm bracket 13 is positioned at the higher end of the base 11. The number of the support beams is plural, at least one support beam 12 is located at the higher end of the base 11, and at least one support beam 12 is located at the lower end of the base 11, in this embodiment, the number of the support beams 12 is two, and in addition, three support beams 12 may be provided, for example, the support beam 12 is provided at the middle of the base 11.

The base 11 is integrally provided. Specifically, the base 11 is a bent integrated plate. Further, the base 11 may be integrally cast.

The base 11 includes a base body 111, a flange 112, a cavity.

The number of the flanges 112 is two, the two flanges 112 are respectively arranged at two sides of the base body 111, and the base body 111 and the flanges 112 are integrally arranged. A cavity is located within the base body 111, which can hold heavier items.

The flange 112 is bent, one side of the flange 112 is connected with the outer side surface of the base body 111 and is perpendicular to the outer side of the base body, and the other side of the flange 112 is parallel to the outer side of the base body.

Two ends of the supporting beam 12 respectively penetrate through the base 11, and the lower part of at least one supporting beam 12 is connected with a reinforcing supporting beam. By reinforcing the thickness of the supporting beam, the durability of the whole machine is improved. In this embodiment, a reinforcing support beam 12 is disposed under the support beam 12 disposed at the lower end of the base 11, and the reinforcing support beam and the support beam have the same shape.

The swing arm bracket 13 includes a side plate 131, a first swing arm mounting portion 132, a rib 133, and a second swing arm mounting portion 134.

The quantity of curb plate 131 is two, and two curb plate 131 symmetries set up, and curb plate 131 slope sets up, and curb plate 131 upper portion sets up to keeping away from the lower one end slope in base 11 position, curb plate 131 lower part and base 11 fixed connection, and curb plate 131 upper portion is connected with first swing arm installation department 132.

The first swing arm mounting portion 132 is a connecting shaft, one end of the first swing arm mounting portion 132 is connected to one of the side plates 131, the other end of the first swing arm mounting portion 132 is connected to the other side plate 131, and two ribs 133 are disposed between the side plate 131 and the base 11 on each side. The ribs 133 may serve as reinforcement.

The swing arms include a first swing arm 21 and a second swing arm 22.

The first swing arm 21 is rotatably connected to the first swing arm mounting portion 132.

The second swing arm 22 is rotatably connected to the second swing arm mounting portion 134, and the first swing arm 21 mounting portion is located on one side of the second swing arm mounting portion 134 away from the work platform.

One end of the first swing arm 21 is hinged with the frame, and the other end of the first swing arm 21 is hinged with the operation platform. In this embodiment, the first swing arm 21 is a U-shaped shield. The U-shaped protective cover is provided with a connecting hole matched with the first swing arm mounting part 132.

One end of the second swing arm 22 is hinged to the frame, the other end of the second swing arm 22 is hinged to the operation platform, and the second swing arm 22 is located below the first swing arm 21.

The number of the second swing arms 22 is two, and the two second swing arms 22 are symmetrically arranged. In addition, the number of the second swing arms 22 may be one, three, or more as needed.

The length of the second swing arm 22 is adjustable. Second swing arm 22 includes first connecting portion, second connecting portion and third connecting portion, and the interior week of second connecting portion one end is equipped with first screw thread, and the interior week of the other one end of second connecting portion is equipped with the second screw thread, and first connecting portion one end is articulated with the frame, and the other end periphery is equipped with the third screw thread with first screw thread matched with, and second connecting portion one end is articulated with the work platform, and the other end periphery is equipped with second screw thread complex fourth screw thread.

Through the adjustable length of second swing arm 22, can be when the work platform installation, adjust the length of second swing arm 22 to rectify the work platform, prevent the defect that the slope can not be corrected when the work platform installation that causes because first swing arm 21 overlength.

The work platform comprises a railing 31, a standing part 32, a sitting part 33 and/or a storage frame.

Guardrail 31 sets up along 32 circumference of portion of standing, sits upright portion 33 and is located guardrail 31 middle part, and the storing frame can set up alone, also can with sit upright portion 33 an organic whole and set up, and guardrail 31 includes body and fence door, and fence door one end is articulated with the body, and fixed connection can be dismantled with the body to the other end.

The lifting mechanism comprises a lifting executive component 41 and a lifting connecting component.

The bottom end of the lifting executive 41 is fixedly connected with the base 11, and the upper end of the lifting executive 41 is hinged with the middle part of the first swing arm 21 through a lifting connecting piece.

The lifting connecting piece is a connecting shaft, one end of the connecting shaft is fixedly connected with one side of the first swing arm 21, and the other end of the connecting shaft is fixedly connected with the other side of the first swing arm 21.

The walking mechanism comprises a walking executing part, a crawler belt 51, a driving wheel 52, a supporting wheel 53, an adjusting wheel 54 and a transmission wheel 55.

The number of the crawler belts 51 is two, and the two crawler belts 51 are respectively positioned at both sides of the frame.

Each crawler belt 51 is provided therein with a set of driving wheels 52, supporting wheels 53, adjusting wheels 54 and driving wheels 55. The driving wheel 52 is positioned above the adjusting wheel 54 and the driving wheel 55, the driving wheel 52 is positioned between the mounting part of the first swing arm 21 and the working platform, the supporting wheel 53 is positioned above the adjusting wheel 54 and the driving wheel 55, the supporting wheel 53 is positioned between the driving wheel 52 and the working platform, the adjusting wheel 54 is positioned in parallel with the driving wheel 55, the adjusting wheel 54 is positioned between the working platform and the supporting wheel 53, and the driving wheel 55 is positioned between the adjusting wheel 54 and the driving wheel 52.

The number of the transmission wheels 55 is at least one. In this embodiment, the number of the transmission wheels 55 is three. Two, four, etc. are also possible.

The arrangement of the driving wheel 52, the supporting wheel 53, the adjusting wheel 54 and the transmission wheel 55 in the crawler 51 can further disperse the unloading force, so that the machine is more stable in lifting and running.

The walking executing part is a hydraulic motor. Further, a motor or the like may be substituted. The number of the walking executing parts is at least one. In this embodiment, the number of the walking executing parts is two, and the walking executing parts are respectively a first walking executing part 56 and a second walking executing part 57, wherein the first walking executing part 56 is in transmission connection with the driving wheel 52 on one side of the frame, and the second walking executing part 57 is in transmission connection with the driving wheel 52 on the other side of the frame.

The control device comprises a hydraulic pump 61, an oil tank 62, a master control part, a filter and a heat exchanger.

The inlet of the hydraulic pump 61 is communicated with the oil tank 62, the liquid outlet of the hydraulic pump 61 is communicated with the inlet of the master control part, the liquid outlet of the master control part is communicated with the inlet of the lifting mechanism, the liquid outlet of the lifting mechanism is communicated with the inlet of the traveling mechanism, the liquid outlet of the traveling mechanism is communicated with the oil tank 62 and/or the master control part, a first overflow valve 641 is arranged between the hydraulic pump 61 and the master control part, and a second overflow valve 642 is arranged between the master control part and the traveling mechanism. A throttle valve 63 is arranged between the master control part and the lifting mechanism.

The overall control section includes a valve block 65, a first direction valve 66, and a second direction valve 67.

The first direction valve 66 and the second direction valve 67 are connected in series through a valve block 65, the valve block 65 is respectively communicated with the hydraulic pump 61 and the oil tank 62, the first direction valve 66 is communicated with the lifting mechanism, and the second direction valve 67 is communicated with the traveling mechanism.

The first direction valve 66 includes a first oil inlet 661, a first oil outlet 662, a first oil port 663, and a second oil port 664.

The first oil inlet 661 is communicated with the master control part, the first oil outlet 662 is communicated with the master control part, the lifting mechanism comprises a lifting actuating element 41, the first oil port 663 and the second oil port 664 are respectively communicated with the lifting actuating element 41, and the first oil port 663 and the second oil port 664 can be reversed.

The second directional valve 67 includes a second oil inlet 671, a second oil outlet 672, a third oil port 673, and a fourth oil port 674.

The second oil inlet 671 is communicated with a master control part or a lifting mechanism, the second oil outlet 672 is communicated with the master control part, the third oil port 673 and the fourth oil port 674 are respectively communicated with a walking mechanism, and the third oil port 673 and the fourth oil port 674 can be reversed.

The lifting mechanism further comprises a lifting control switch 42 and a lowering control switch 43.

The up control switch 42 is used to control the up, and the down control switch 43 is used to control the down. The up control switch 42 and the down control switch 43 are electrically connected to the first direction changing valve 66, respectively. The lifting control switch 42 and the lowering control switch 43 are respectively positioned at two sides of the walking safety control switch 59, and one-key operation can be realized, so that the operation and control of personnel are facilitated.

The travel mechanism also includes a pilot valve handle 58.

The pilot valve handle 58 includes a third oil inlet 581, a third oil outlet 582, a fifth oil port 583, a sixth oil port 584, a seventh oil port 585, an eighth oil port 586, and a handle 587.

The third oil inlet 581 is communicated with the traveling mechanism, the third oil outlet 582 is communicated with the traveling mechanism, the fifth oil port 583 and the sixth oil port 584 are respectively communicated with the first traveling actuator, the seventh oil port 585 and the eighth oil port 586 are respectively communicated with the second traveling actuator, the directions of the fifth oil port 583 and the sixth oil port 584 are opposite and can be reversed, and the directions of the seventh oil port 585 and the eighth oil port 586 are opposite and can be reversed.

The first direction valve 66 is a three-position four-way valve, and may be a two-position four-way valve or a three-position five-way valve.

The second direction valve 67 is a three-position four-way valve, and may be a two-position four-way valve or a three-position five-way valve.

The handle 587 or pilot valve handle 58 is provided directly on the lifting work platform for ease of operation.

The travelling mechanism further comprises a travelling safety control switch 59, and the travelling safety control switch 59 is used for controlling the starting and stopping of the travelling mechanism. The travel safety control switch 59 is electrically connected to a second directional valve 67. In fact, walking safety control switch 59 is the relay switch commonly used for the break-make electricity of control pilot valve handle 58 to can control the walking by a key, through this setting, it is safer when making actual operation, when avoiding picking the operation, the machine suddenly removes and causes personnel's safety damage.

The filter, heat exchanger is located on the line back to the tank 62. In addition, a filter, a heat exchanger, a pressure gauge, and the like may be provided as necessary.

The hydraulic pump 61 is connected to the engine in use. In addition, the motor or the motor and the fan can be mixed power. The hydraulic pump 61 may also be replaced with an electro-hydraulic station.

When in use, oil conveyed by the hydraulic pump 61 firstly passes through the first overflow valve 641, then is conveyed to the valve block 65, enters the first reversing valve 66 through the first oil inlet 661, then returns to other oil ports of the valve block 65 through the first oil outlet 662, then is conveyed to the second oil inlet 671 through the pipeline in the valve block 65, then returns to other oil ports of the valve block 65 through the second oil outlet 672, and then returns to the oil tank 62 through the filter and the heat exchanger through the pipeline in the valve block 65; through the pipeline arrangement, the traditional parallel structure is simplified, and the pipeline connection is simple and easy.

The first overflow valve 641 makes the overall pipeline safer, and when the pressure exceeds the pressure required by the lifting mechanism, the redundant oil is sent back to the oil tank 62, so that the machine is prevented from being broken down, and the maintenance frequency is reduced.

Regarding the lifting mechanism, the flow directions of the first oil port 663 and the second oil port 664 can be operated through the first direction changing valve 66, so that the lifting actuator 41 is extended and contracted, thereby controlling lifting; a throttle valve 63 is arranged between the lifting executive 41 and the first reversing valve 66, and the throttle valve 63 can control the flow of hydraulic oil, so that the stretching speed of the lifting executive 41 is controlled, and the lifting speed is controlled.

Regarding the running mechanism, can control the removal through pilot valve handle 58, because pilot valve handle 58 generally uses in the loader before, but does not see the application in the small-size apparatus that orchard picking operation used yet, through this special use, make operating personnel operate when walking, only need push handle 587 forward, back, left or right movement, both can realize the forward simultaneously of first walking executive component, second walking executive component, one is positive and negative, one is negative and positive, four well modes of reversal simultaneously, therefore can realize the mode such as advancing, retreating, left turn, right turn of crawler-type lift work platform, even can rotate on the spot.

And a second overflow valve 642 is arranged between the travelling mechanism and the second reversing valve, and when the pressure is greater than the pressure required by the travelling mechanism, the overload pressure of the lifting mechanism or the master control part can be unloaded, so that the machine is prevented from being broken down, and the maintenance frequency is reduced.

Further, the first relief valve 641 may be provided only between the hydraulic pump 61 and the overall control unit. Or a second relief valve 642 may be provided only between the overall control unit and the travel mechanism. And may also communicate with the travel mechanism at the first oil outlet 662. The second oil inlet 671 is communicated with the lifting mechanism or the second oil outlet 672 is communicated with the general control part and the oil tank 62 respectively. The second direction valve 67 is a two-position four-way valve. And is not limited to the contents given in the examples.

The walking safety control switch 59, the pilot valve handle 58, the lifting control switch 42 and the lowering control switch 43 are arranged on the working platform, and can be specifically arranged on the guardrail 31 at the side part of the sitting part 33, so that the operation of personnel is facilitated.

When in use, the pilot valve handle 58 is operated, so that the first walking executing part and the second walking executing part which are communicated with the pilot valve handle 58 can move, and the whole machine can move forwards, backwards or turn; the walking mechanism can be powered on or off through the walking safety control switch 59, so that walking is started safely by one key or is locked safely by one key, and the machine is prevented from shaking during high-altitude operation; the first swing arm 21 can be swung along the first swing arm 21 mounting portion by extending and contracting the raising control switch 42 and the lowering control switch 43, thereby raising or lowering the work platform. When the first swing arm 21 lifts the operation platform, the first swing arm 21 transmits force to the swing arm support 13, and the swing arm support 13 unloads force to the ground through the base 11 and the support beam 12, so that the phenomenon that the machine is excessively influenced by the swing of the first swing arm 21 is avoided, the machine is prevented from being turned over backwards, and the whole machine is stable and durable.

Claims

1. Crawler-type lift work platform, its characterized in that: the lifting mechanism comprises a frame, a first swing arm, an operation platform, a lifting mechanism and a travelling mechanism, wherein one end of the first swing arm is movably connected with the upper part of the frame, the other end of the first swing arm is movably connected with the operation platform, the lower end of the lifting mechanism is connected with the frame, the upper end of the lifting mechanism is movably connected with the middle part of the first swing arm, and the travelling mechanism is connected with the lower part of the frame;

2. The tracked lift work platform of claim 1, wherein: the frame comprises a first swing arm mounting part, the first swing arm mounting part is located on one side, far away from the working platform, of the second swing arm, and the number of the second swing arms is at least one.

3. The tracked lift work platform of claim 2, wherein: the length of the second swing arm is adjustable;

4. A tracked lift work platform according to any of claims 1 to 3, wherein: running gear includes the track, be equipped with the action wheel in the track, the supporting wheel, regulating wheel and drive wheel, the action wheel is located regulating wheel and drive wheel top, the action wheel is located between first swing arm installation department and the work platform, the supporting wheel is located regulating wheel and drive wheel top, the supporting wheel is located between action wheel and the work platform, the regulating wheel is located and drive wheel parallel arrangement, the regulating wheel is located between work platform and the supporting wheel, the drive wheel is located between regulating wheel and the action wheel, the quantity of drive wheel is one at least.

5. The tracked lift work platform of claim 4, wherein: the number of the crawler belts is two, and the two crawler belts are symmetrically arranged;

6. The tracked lift work platform of claim 5, wherein: the walking mechanism comprises a first walking executing part and a second walking executing part, the first walking executing part is in transmission connection with one driving wheel, and the second walking executing part is in transmission connection with the driving wheel on the other side.

7. A tracked lift work platform according to any of claims 1 to 3, wherein: the work platform comprises a guardrail, a standing part, a sitting part and/or a storage frame.

8. A tracked lift work platform according to any of claims 1 to 3, wherein: the frame comprises a base, wherein the upper part of the base is obliquely arranged, the upper part of the base is fixedly connected with a first swing arm support, the first swing arm support is positioned at the higher end of the base, the lower part of the base is fixedly connected with a plurality of supporting beams, at least one supporting beam is positioned at the higher end of the base, and at least one supporting beam is positioned at the lower end of the base;

the base is a bent integrated plate or the base is an integrated casting.

9. A tracked lift work platform according to any of claims 1 to 3, wherein: the lifting mechanism comprises a lifting executing piece, the lower end of the lifting executing piece is fixedly connected with the frame, and the upper end of the lifting executing piece is hinged with the middle part of the first swing arm;

10. A tracked lift work platform according to any of claims 1 to 3, wherein: the hydraulic control system further comprises a control system, wherein the control system comprises a hydraulic pump, an oil tank and a master control part;