CN220012057U - Working arm and working vehicle - Google Patents

Abstract

The utility model discloses a working arm and a working vehicle, wherein the working arm comprises a first rotating arm group, a telescopic arm group and a second rotating arm group, the first rotating arm group is suitable for being rotatably arranged on a chassis of the working vehicle, and two ends of the telescopic arm group are respectively and rotatably connected with the first rotating arm group and the second rotating arm group. Among the above-mentioned operation car arm, first rotating arm group, flexible arm group and second rotating arm group motion are nimble, can reach the optional position of track girder, satisfy the operating mode that the track girder needs many operations, improve the operating efficiency, satisfy the user demand.

Description

Working arm and working vehicle

Technical Field

The utility model relates to the technical field of rail operation equipment, in particular to a working arm and a working vehicle.

Background

In the construction and maintenance of high-altitude rails, beam-up and beam-down operations are often required. In the related art, the track steel beam working vehicle only has the high-altitude working function, the beam-up operation can be realized, and the operation under the beam is generally realized by the ground high-altitude working vehicle, so that the track steel beam working vehicle and the ground high-altitude working vehicle are simultaneously required for the construction and maintenance work of a high-altitude track, the working conditions of multiple operations on the track steel beam are required, the working efficiency is lower, and the use requirements of the existing working conditions cannot be met.

Disclosure of Invention

The embodiment of the utility model provides a working arm and a working vehicle.

The working arm comprises a first rotating arm group, a telescopic arm group and a second rotating arm group;

the first rotating arm set is suitable for being rotatably installed on a chassis of the working vehicle, and two ends of the telescopic arm set are rotatably connected with the first rotating arm set and the second rotating arm set respectively.

Among the above-mentioned operation car arm, first rotating arm group, flexible arm group and second rotating arm group motion are nimble, can reach the optional position of track girder, satisfy the operating mode that the track girder needs many operations, improve the operating efficiency, satisfy the user demand.

In some embodiments, the first swing arm set includes a vertical arm, a primary arm, and a swing arm rotatably connected in sequence, the vertical arm being rotatably mounted to a chassis of the work vehicle, the swing arm being rotatably connected to the telescopic arm set.

In certain embodiments, the primary arm includes a first fixed arm slidably disposed within the first fixed arm, the first fixed arm rotatably coupled to the riser arm, and a first telescoping arm rotatably coupled to the swivel arm.

In some embodiments, the working arm further comprises a lifting device mounted at an end of the first telescoping arm remote from the first fixed arm.

In some embodiments, the telescopic arm set includes a second fixed arm and a second telescopic arm, the second telescopic arm slidably disposed within the second fixed arm, the second fixed arm rotatably coupled to the first rotary arm set, the second telescopic arm rotatably coupled to the second rotary arm set.

In some embodiments, the second rotating arm set includes a primary adjusting arm, a secondary adjusting arm, and a tertiary adjusting arm that are sequentially rotatably connected, and the primary adjusting arm is connected to the telescopic arm set.

The working vehicle of the embodiment of the utility model comprises a chassis, a working platform and the working arm of any embodiment, wherein the first rotating arm set is rotatably installed on the chassis, and the working platform is arranged on the second rotating arm set.

In some embodiments, the work vehicle includes a drive mechanism disposed on the work arm and a control system including a controller for controlling the drive mechanism to drive the work platform to different stations.

In some embodiments, the driving mechanism comprises a lifting mechanism arranged on the working arm, the control system comprises an angle sensor arranged on the working arm, and the controller is used for controlling the lifting mechanism according to a first angle signal of the angle sensor so as to enable the working platform to reach different stations.

In some embodiments, the driving mechanism comprises a swing mechanism arranged on the working arm, the control system comprises an encoder arranged on the swing mechanism, and the controller is used for controlling the swing mechanism according to a second angle signal of the encoder so as to enable the working platform to reach different stations.

In some embodiments, the control system includes a pressure sensor disposed below the work platform, and the controller is configured to monitor a load weight of the work platform based on a pressure signal of the pressure sensor.

In some embodiments, the work vehicle further comprises a stability holding mechanism comprising a hydraulic leg including a land mounted below the chassis, a drive bar connecting the land and the support block, and a support block supported on the rail steel beam with the hydraulic leg extended.

In some embodiments, the stabilizing and maintaining mechanism further comprises a beam holding device, the beam holding device is installed below the chassis, the beam holding device comprises a hook body, a manual locking device and a clamp, the hook body is used for connecting the chassis, the manual locking device is used for enabling the clamp to clamp the track steel beam to limit the movement of the working vehicle when in a clamping state, and the working vehicle can walk along the track steel beam when in an unlocking state.

Above-mentioned operation car, but drive operation arm drives the optional position that operation platform arrived the track roof beam, and the motion is nimble, can satisfy the operating mode that the track girder steel needs the operation of many places, improves the operating efficiency, satisfies the user demand. Meanwhile, the stable retaining mechanism is arranged on the chassis of the operation vehicle, so that the operation vehicle can be stably fixed on the track beam, and the safety of operators is ensured.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a front elevational view of a work vehicle according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the boom assembly and work platform of an embodiment of the present utility model;

FIG. 3 is a top view of a boom assembly and work platform according to an embodiment of the present utility model;

FIG. 4 is a schematic illustration of the location of a work platform at a beam station according to an embodiment of the present utility model;

FIG. 5 is a schematic illustration of another position of a work platform of an embodiment of the present utility model at a beam station;

FIG. 6 is a schematic illustration of the position of a work platform at a beam side station according to an embodiment of the present utility model;

FIG. 7 is a schematic illustration of the position of a work platform in an underbeam station according to an embodiment of the present utility model;

FIG. 8 is a schematic view of another position of a work platform in an underbeam station according to an embodiment of the present utility model;

FIG. 9 is a schematic view of a lifting operation of a work vehicle according to an embodiment of the present utility model;

FIG. 10 is a schematic view of the structure of a hydraulic leg of an embodiment of the present utility model;

fig. 11 is a schematic structural view of a beam clasping device according to an embodiment of the present utility model;

FIG. 12 is a schematic view of the structure of a stabilization holding mechanism of an embodiment of the present utility model;

fig. 13 is a schematic block diagram of a work vehicle according to an embodiment of the present utility model.

Description of main reference numerals:

the arm-to-arm 10,

the working vehicle-100, the control system-200, the track steel beam-11, the working platform-12, the chassis-13, the cab-14, the front maintenance platform-16, the rear maintenance platform-18, the front non-bogie system-20, the rear power bogie system-22, the first rotating arm group-23, the telescopic arm group-24, the second rotating arm group-25, the vertical arm-26, the primary arm-28, the rotating arm-29, the first movable arm-30, the primary adjusting arm-32, the secondary adjusting arm-33, the tertiary adjusting arm-34, the first fixed arm-35, the first telescopic arm-36, the second fixed arm-37, the second telescopic arm-38, the third fixed arm-39, the first hydraulic cylinder-40, the second hydraulic cylinder-41, the third hydraulic cylinder-42, fourth hydraulic cylinder-43, fifth hydraulic cylinder-44, sixth hydraulic cylinder-45, first swing mechanism-46, second swing mechanism-47, third swing mechanism-48, first hydraulic motor-49, second hydraulic motor-50, third hydraulic motor-51, first angle sensor-52, second angle sensor-53, third angle sensor-54, fourth angle sensor-55, fifth angle sensor-56, controller-57, first encoder-58, second encoder-59, third encoder-60, seventh hydraulic cylinder-61, eighth hydraulic cylinder-62, first displacement sensor-63, second displacement sensor-64, pressure sensor-65, the hydraulic support leg comprises a hydraulic support leg body, a connecting disc, a driving rod, a supporting block, a position detection device, a beam holding device, a hook body, a manual locking device, a clamp, a lifting device and a lifting weight, wherein the hydraulic support leg body, the connecting disc, the driving rod, the supporting block, the position detection device, the beam holding device, the hook body and the lifting weight are arranged in sequence, and the manual locking device is arranged in sequence.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the embodiments of the present utility model and are not to be construed as limiting the embodiments of the present utility model.

In an embodiment of the utility model, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different structures of embodiments of the utility model. In order to simplify the disclosure of embodiments of the present utility model, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Embodiments of the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and do not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present utility model provide examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 to 4, a work arm 10 according to an embodiment of the present utility model includes a first rotating arm set 23, a telescopic arm set 24 and a second rotating arm set 25.

The first swing arm group 23 is adapted to be rotatably mounted on the chassis 13 of the work vehicle 100, and both ends of the telescopic arm group 24 are rotatably connected to the first swing arm group 23 and the second swing arm group 25, respectively.

In the arm of the working vehicle 100, the first rotating arm group 23, the telescopic arm group 24 and the second rotating arm group 25 move flexibly, and can reach any position of the track beam, so that the working condition that the track beam needs to work at a plurality of positions can be met, the working efficiency is improved, and the use requirement is met.

Specifically, the operations on the track beam mainly comprise overhead operations and low-altitude operations, wherein the overhead operations mainly comprise overhauling of charging bows above roads, platform illumination and monitoring, AP signal rods, line antennas, line signal lamps, line monitoring and the like; the low-altitude operation mainly comprises: foot beam side, underbeam equipment (such as equipment under the tracks of AP cabinets, power supply cabinets, transponders, walking beams, cover beams, and the like) and other track side equipment. Based on the above operation requirements, the working arm 10 provided by the utility model integrates various operation capabilities, is flexible to move and can move to different stations on the track beam.

The first swing arm group 23 is rotatably mounted on the chassis 13 of the work vehicle 100, and both ends of the telescopic arm group 24 are rotatably connected to the first swing arm group 23 and the second swing arm group 25, respectively. The first rotating arm group 23, the telescopic arm group 24 and the second rotating arm group 25 can flexibly move to different works of the track beam, so that multi-station work on the beam, liang Ce and under the beam is realized.

The first pivoting arm group 23 includes sub-arms rotatably connected in a plurality of stages, each of which is rotatable about a connection point to adjust the positions of the telescopic arm group 24 and the second pivoting arm group 25 connected thereto.

The telescopic boom set 24 may comprise a plurality of telescopic sub-arms, each of which may be extended or retracted to adjust the length of the telescopic boom set 24 and thus the position of the second rotating boom set 25 connected after the telescopic boom set 24.

The second rotating arm group 25 includes sub-arms rotatably connected in multiple stages, each of which is rotatable about a connection point, and the posture and position of the work arm 10 can be adjusted by rotation between the sub-arms.

The working arm 10 can be used for being installed on the working vehicle 100 and connected with the working platform 12 of the working vehicle 100, and the working platform 12 is driven to reach different stations on the track beam by the rotation of the first rotating arm group 23, the telescopic arm group 24 and the second rotating arm group 25, so that the working personnel can conveniently work.

In some embodiments, the first swing arm set 23 includes a vertical arm 26, a primary arm 28, and a swing arm 29 that are pivotally connected in sequence, the vertical arm 26 being rotatably mounted to the chassis 13 of the work vehicle 100, the swing arm 29 being rotatably connected to the telescopic arm set 24.

In this manner, the first swing arm group 23 can be turned to adjust the position of the work arm 10.

Specifically, the vertical arm 26 is mounted on the chassis 13 of the work vehicle 100, the vertical arm 26 is rotatable on the chassis 13, the swing arm 29 includes a third fixed arm 39 and a first movable arm 30, the first movable arm 30 is rotatable with respect to the third fixed arm 39, the third fixed arm 39 is connected to the primary arm 28, and the first movable arm 30 is connected to the telescopic arm group 24, so that the telescopic arm group 24 is rotatable about the first swing arm group 23.

In certain embodiments, primary arm 28 includes a first fixed arm 35 and a first telescoping arm 36, first telescoping arm 36 slidably disposed within first fixed arm 35, first fixed arm 35 rotatably coupled to riser arm 26, and first telescoping arm 36 rotatably coupled to swivel arm 29.

Thus, the primary arm 28 can drive the arm set connected with the primary arm to move in a wider range.

Specifically, primary arm 28 includes a first fixed arm 35 and a first telescoping arm 36, first fixed arm 35 being connected to riser arm 26, and first telescoping arm 36 being connected to a third fixed arm 39. The first telescopic arm 36 is provided in the first fixed arm 35, and extends or retracts along the first fixed portion. The first telescopic arm 36 can make 0-1.5m telescopic movement in the first fixed arm 35.

In some embodiments, the work arm 10 further includes a lifting device 75, the lifting device 75 being mounted to the end of the first telescoping arm 36 remote from the first fixed arm 35.

In this way, the boom 10 integrates a lifting function, and the work function of the boom 10 is increased.

Specifically, the arm 10 may also have the capability of lifting operations, for example, the arm 10 may be required to lift materials such as platform doors, switch drive motors, etc. The lifting device 75 comprises a starter, the primary arm 28 rotates around the connecting point with the vertical arm 26 during operation, the first telescopic arm 36 extends out of the first fixed arm 35, and the vertical arm 26 can rotate to adjust the lifting position. The starter comprises a steel wire rope for fixing the lifting weight. After the hoist weight 76 is fixed, the starter works to lift the hoist weight 76 to a specified position.

In certain embodiments, the telescoping arm set 24 includes a second stationary arm 37 and a second telescoping arm 38, the second telescoping arm 38 slidably disposed within the second stationary arm 37, the second stationary arm 37 rotatably coupled to the first rotating arm set 23, and the second telescoping arm 38 rotatably coupled to the second rotating arm set 25.

In this manner, the telescopic arm group 24 can adjust the position of the work arm 10 by telescopic movement.

Specifically, the telescopic arm group 24 includes a second fixed arm 37 and a second telescopic arm 38, the second fixed arm 37 is connected to the first movable arm 30, and the second telescopic arm 38 is connected to the second rotating arm group 25. The second telescopic arm 38 is slidably disposed in the second fixed arm 37 to extend or retract along the first fixed portion, and the second telescopic arm 38 can perform a telescopic motion of 0-1.3m along the second fixed arm 37.

In some embodiments, the second rotating arm set 25 includes a primary adjusting arm 32, a secondary adjusting arm 33, and a tertiary adjusting arm 34 that are rotatably connected in sequence, with the primary adjusting arm 32 being connected to the telescoping arm set 24.

In this way, the second rotating arm group 25 can adjust the posture and position of the work arm 10.

Specifically, primary adjustment arm 32, secondary adjustment arm 33, and tertiary adjustment arm 34 are rotatably connected in that order, primary adjustment arm 32 being connected to second telescoping arm 38 to connect second rotating arm set 25 to telescoping arm set 24, and tertiary adjustment arm 34 being rotatably connected to work platform 12 to connect work platform 12 to work arm 10 when work platform 12 is mounted on work arm 10. The position of the working platform 12 can be adjusted by rotating the primary adjusting arm 32, the secondary adjusting arm 33 and the tertiary adjusting arm 34, so that the working platform 12 can be kept horizontal when the working arm 10 moves to different stations, thereby being beneficial to the working of operators on the working platform 12.

In summary, the working arm 10 includes the first rotating arm set 23, the telescopic arm set 24 and the second rotating arm set 25, where the first rotating arm set 23 has a telescopic first telescopic arm 36, the telescopic arm set 24 has a telescopic second telescopic arm 38, and the first rotating arm set 23 further has a rotating arm 29, and the telescopic arm set 24 and the second rotating arm set 25 can rotate around the first rotating arm set 23. The operation arm 10 can flexibly move through the rotation of the three arm groups, can reach any position of the track beam, can meet the working condition of needing multiple operations on the track beam, improves the operation efficiency and meets the use requirement.

A work vehicle 100 according to an embodiment of the present utility model includes a chassis 13, a work platform 12, and the work arm 10 according to any of the above embodiments, wherein a first pivot arm group 23 is rotatably mounted on the chassis 13, and the work platform 12 is disposed on a second pivot arm group 25.

The working vehicle 100 can drive the working arm 10 to drive the working platform 12 to reach any position of the track beam, is flexible in movement, can meet the working conditions of multiple working positions required by the track steel beam, improves the working efficiency and meets the use requirement. Meanwhile, a stable retaining mechanism is arranged on the chassis 13 of the working vehicle 100, so that the working vehicle 100 can be stably fixed on a track beam when the working arm 10 moves between different stations to work, and the safety of operators is ensured.

As shown in fig. 1, the whole vehicle scheme is that an integrated working vehicle 100 is composed of a chassis 13, a cab 14, a working platform 12, a front maintenance platform 16, a rear maintenance platform 18, a front non-bogie system 20, a rear power bogie system 22, a whole vehicle electrical system and the like. The chassis 13 adopts a steel structure to ensure the strength of the vehicle, the cab 14 integrates subsystems such as a driver control desk, a whole vehicle control box, an air conditioner, a smoke alarm, an indoor lighting lamp and the like, the practicability of driving is fully considered, maintenance personnel can enter the cab 14 from a platform through a fence door and enter the rear of the rear maintenance platform 18, and the maintenance personnel can perform maintenance operation through the fence door on the front maintenance platform 16 and the fence door side lower rail steel beam 11 on the rear maintenance platform 18; static electricity generated by the vehicle running on the track steel beam 11 is released through grounding electric shoes, and a front non-bogie system 20 and a rear power bogie system 22 are arranged below the chassis 13, wherein the rear power bogie system 22 is externally provided with an electric assembly and has the functions of traction, whole vehicle, steering and the like.

In one embodiment, the working vehicle 100 adopts a pure electric driving technology, is configured with a 150kWh lithium iron phosphate power battery, and consists of a whole vehicle control system 200, a traction system, a power system, a cooling system, a working platform 12 and the like, wherein the highest speed per hour is 80kM/h, the comprehensive endurance capacity is more than 150kM, and the pure working mode can reach 24 hours.

The working arm 10 includes a first rotating arm group 23, a telescopic arm group 24 and a second rotating arm group 25 which are connected in turn, the first rotating arm group 23 includes a standing arm 26, a primary arm 28 and a rotating arm 29 which are connected in turn, the working arm 10 is rotatably mounted on the chassis 13 through the standing arm 26, and the rotating arm 29 is connected with the telescopic arm group 24. The second rotating arm group 25 includes a primary adjusting arm 32, a secondary adjusting arm 33, and a tertiary adjusting arm 34 which are rotatably connected in this order, and when the work platform 12 is mounted on the work arm 10, the tertiary adjusting arm 34 rotatably connects the work platform 12 to mount the work platform 12 on the work arm 10.

Rotation of the first swing arm set 23 moves the work platform 12 to the aerial work station and rotation of the primary arm 28 about the riser arm 26 moves the work platform to the aerial work station, the riser arm 26 being rotatable to adjust the position of the work platform 12 as shown in figures 4 and 5. When the working arm performs a lifting operation, the first telescopic arm 36 may extend from the first fixed arm 35, and the lifting device may perform a lifting operation, as shown in fig. 9. The first pivot arm group 23, the telescopic arm group 24, and the second pivot arm group 25 cooperate together to move the work platform 12 to the beam side station of the track steel beam 11, as shown in fig. 6. On the basis of the beam-side work station, the second telescopic arm 38 is extended, so that the work platform 12 can be moved to the low-altitude work station, and the position of the work platform can be adjusted by rotating the rotary arm 29, as shown in fig. 7 and 8.

In some embodiments, work vehicle 100 includes a drive mechanism disposed on work arm 10 and a control system including a controller for controlling the drive mechanism to drive work platform 12 to different work stations.

In this way, the control system controls the driving mechanism, and can drive the work arm 10 to different stations.

Specifically, a drive mechanism is provided on the work arm 10 for controlling the first swing arm group 23, the telescopic arm group 24, and the second swing arm group 25 to swing and retract. The drive mechanism may be a hydraulic, pneumatic or electric drive mechanism.

The control device comprises a controller which can be controlled by manual or computer programs. The controller may control the drive mechanism to start or stop operation, thereby being capable of controlling different sets of arms on the work arm 10 to rotate or telescope and further move the work platform 12 to different stations.

In some embodiments, the drive mechanism includes a lift mechanism disposed on the work arm 10, and the control system includes an angle sensor disposed on the work arm 10, and the controller is configured to control the lift mechanism to reach the work platform 12 to different stations based on a first angle signal from the angle sensor.

Thus, the rotation angle of the work arm 10 can be precisely controlled to adjust the position of the work platform 12.

Specifically, in the illustrated embodiment, the lifting mechanism is a hydraulic cylinder including a first hydraulic cylinder 40 disposed between the standing arm 26 and the first fixed arm 35, a second hydraulic cylinder 41 disposed between the first fixed arm 35 and the third fixed arm 39, a third hydraulic cylinder 42 disposed between the first movable arm 30 and the second fixed arm 37, a fourth hydraulic cylinder 43 disposed between the second fixed arm 37 and the primary adjusting arm 32, a fifth hydraulic cylinder 44 disposed between the primary adjusting arm 32 and the secondary adjusting arm 33, and a sixth hydraulic cylinder 45 disposed between the secondary adjusting arm 33 and the tertiary adjusting arm 34. The first, second, third, fourth, fifth, and sixth hydraulic cylinders 40, 41, 42, 43, 44, 45 are used to drive the interconnected boom sets to rotate, thereby moving and adjusting the position of work platform 12.

The angle sensors include a first angle sensor 52 provided on the primary arm 28, a second angle sensor 53 provided on the rotary arm 29, a third angle sensor 54 provided on the primary adjusting arm 32, a fourth angle sensor 55 provided on the secondary adjusting arm 33, and a fifth angle sensor 56 provided on the tertiary adjusting arm 34, and the controller 57 is capable of receiving the first angle signals of the first angle sensor 52, the second angle sensor 53, the third angle sensor 54, the fourth angle sensor 55, and the fifth angle sensor 56, and acquiring the current rotation state of the boom assembly 13 according to the angle signals, thereby precisely adjusting the rotation angle of the work arm 10 to adjust the position of the work platform 12.

The hydraulic cylinders further comprise a seventh hydraulic cylinder 61 arranged between the first fixed arm 35 and the first telescopic arm 36 and an eighth hydraulic cylinder 62 arranged between the second fixed arm 37 and the second telescopic arm 38. The seventh hydraulic cylinder 61 and the eighth hydraulic cylinder 62 are used to drive the first telescopic arm 36 and the second telescopic arm 38 in telescopic movements.

The control system further includes displacement sensors including a first displacement sensor 63 disposed on first telescoping arm 36 and a second displacement sensor 64 disposed on second telescoping arm 38, with the controller 57 being able to precisely control the length of primary arm 28 and telescoping arm set 24 via displacement signals from first displacement sensor 63 and second displacement sensor 64, thereby adjusting the position of work platform 12.

In some embodiments, the drive mechanism includes a swing mechanism disposed on the work arm 10, and the control system includes an encoder disposed on the swing mechanism, the controller being configured to control the swing mechanism to cause the work platform 12 to reach different work stations based on a second angle signal from the encoder.

In this way, the swing mechanism controls the working arm 10 to rotate, and the encoder sends a second angle signal to the controller according to the rotation angle, so that the controller can accurately control the rotation angle of the swing mechanism.

Specifically, the swing mechanism includes a first swing mechanism 46 provided between the standing arm 26 and the chassis 13, a second swing mechanism 47 provided therebetween, and a third swing mechanism 48 provided between the tertiary adjusting arm 34 and the work platform 12. The first swing mechanism 46 is provided with a first hydraulic motor 49 which can rotate the vertical arm 26 on the chassis 13 by 100 degrees; the second swing mechanism 47 has a second hydraulic motor 50 that can rotate the first movable arm 30 by 180 ° with respect to the third fixed arm 39; the third swing mechanism 48 has a third hydraulic motor 51 that enables 360 ° rotation of the work platform 12 relative to the tertiary adjustment arm 34.

The encoders include a first encoder 58 provided on the first swing mechanism 46, a second encoder 59 provided on the second swing mechanism 47, and a third encoder 60 provided on the third swing mechanism 48, and the controller 57 is configured to control the first hydraulic motor 49 on the first swing mechanism 46, the second hydraulic motor 50 on the second swing mechanism 47, and the third hydraulic motor 51 on the third swing mechanism 48 in accordance with the second angle signals of the first encoder 58, the second encoder 59, and the third encoder 60 to rotate the vertical arm 26, the swing arm 29, and the work platform 12.

In certain embodiments, the control system includes a pressure sensor disposed below work platform 12 and the controller is configured to monitor the load weight of work platform 12 based on the pressure signal from the pressure sensor.

In this manner, the load calculation and monitoring of work platform 12 can be performed by collecting the pressure sensor 65 signals in real time.

Specifically, as shown in fig. 3, pressure sensors 65 are respectively disposed at four corners of the bottom of the working platform 12, and the controller 57 is configured to monitor the load weight of the working platform 12 according to the pressure signal output by the pressure sensors 65, and when the load weight of the working platform 12 exceeds a preset threshold, the working personnel can be prompted by an audible and visual alarm of an alarm lamp.

In some embodiments, work vehicle 100 further includes a stability maintenance mechanism including hydraulic leg 66, hydraulic leg 66 including a connecting disc 67, a drive rod 68, and a support block 69, connecting disc 67 mounted below chassis 13, drive rod 68 connecting disc 67 and support block 69, support block 69 being supported on the rail steel beam with hydraulic leg 66 extended.

In this way, the support stability of the work vehicle 100 during the parking work is improved.

Specifically, as shown in fig. 10, the hydraulic leg 66 includes a connection plate 67, a driving lever 68, and a support block 69, the connection plate 67 is installed below the chassis 13, the driving lever 68 connects the connection plate 67 and the support block 69, and the support block 69 is supported on the rail steel beam 11 with the hydraulic leg 66 extended. The supporting block 69 can also be provided with a universal ball head, the contact position of the supporting block 69 and the track steel beam 11 is provided with an anti-corrosion rubber pad, and the hydraulic support leg 66 also comprises a position detection device 70.

The connecting disc 67 is connected with the chassis 13 through bolts, the driving rod 68 is driven by hydraulic pressure, the working vehicle 100 is supported on the track steel beam 11, a universal ball head is arranged to be compatible with a beam surface with a gradient, a sliding damping is increased by an anti-corrosion rubber pad, the contact surface with the track steel beam 11 is guaranteed not to slide during supporting, a laser displacement sensor arranged in the position detection device 70 detects the telescopic state of the driving rod 68, signals are transmitted to the controller 57, interlocking control of a working mode and a driving mode is achieved, and each hydraulic support leg 66 can provide four hydraulic support legs 66 with 60kN supporting force and 240kN supporting force.

In some embodiments, the stable holding mechanism further comprises a beam holding device 71, the beam holding device 71 is installed below the chassis 13, the beam holding device 71 comprises a hook 72, a manual locking device 73 and a clamp 74, the hook 72 is used for connecting the chassis 13, the clamp 74 is used for clamping the rail steel beam 11 when the manual locking device 73 is in a clamping state so as to limit the movement of the rail steel beam 11, and the rail steel beam 11 can be walked by the operation vehicle 100 when the manual locking device 73 is in an unlocking state.

Thus, the position of the work vehicle 100 can be locked, and movement and rollover during work can be prevented.

Specifically, as shown in fig. 11, the beam holding device 71 is composed of a hook 72, a manual locking device 73 and a clamp 74, wherein the hook 72 is connected with the chassis 13, the clamp 74 grabs the upper edge of the rail steel beam 11, the chassis 13 and the rail steel beam 11 are tensioned by adjusting the manual locking device 73, and each beam holding device 71 can provide a tensile force of 50kN and a total tensile force of 200 kN.

As shown in fig. 10 and 12, the beam clasping device 71 and the hydraulic support leg 66 cooperate to ensure smooth and safe operation of the integrated work vehicle 100 on special beam surfaces such as slopes, superelevation, and the like.

The specific implementation steps of the control method of the stable holding mechanism comprise:

step S101: stopping the working vehicle 100 and braking at the maximum level, wherein the working vehicle 100 automatically applies the parking brake;

step S103: the controller 57 checks to confirm that the parking brake has been applied and checks to confirm that the work platform 12 is fault-free;

step S105: manually controlling to extend the hydraulic support legs 66 and support the chassis 13 on the beam surface of the rail steel beam 11 to fully bear the weight of the working vehicle 100;

step S107: whether the vehicle body of the working vehicle 100 is inclined left and right is determined by measuring through a level bar, and the vehicle body is adjusted;

step S111: the beam holding device 71 is hung below the chassis 13 through the hook 72, the clamp 74 is clamped on the beam surface edge of the rail steel beam 11, and the chassis 13 and the beam surface of the rail steel beam 11 are tensioned through the manual locker;

step S113: the control operation platform 12 operates normally;

step S115: after the operation is completed, removing the beam holding device 71;

step S117: four hydraulic legs 66 are retracted and work vehicle 100 is then reset.

In summary, when the working vehicle 100 performs the overhead working, as shown in fig. 4 and 5, the operator stands inside the working platform 12 to operate the operation table, controls the first swing mechanism 46 to drive the vertical arm 26 to rotate, controls the first hydraulic cylinder 40, the fifth hydraulic cylinder 44 and the sixth hydraulic cylinder 45 to drive the primary arm 28, the secondary adjusting arm 33 and the tertiary adjusting arm 34 to rotate, and controls the third swing mechanism 48 to drive the working platform 12 to rotate, thereby realizing the overhead working of the working platform 12. In one embodiment, work vehicle 100 is capable of performing aerial work within a range of + -100 deg. in the Z direction based on 1.5-4 meters in the X direction, 0-6 meters in the Y direction, and up to 300kg in the Z direction of the bottom surface of riser 26, wherein the X direction, Y direction, and Z direction are as shown in FIG. 4.

When the working vehicle 100 performs low-altitude work, as shown in fig. 7 and 8, a worker stands in the working platform 12 to operate the operation table, controls the first swing mechanism 46 to drive the vertical arm 26 to rotate, controls the first hydraulic cylinder 40 to drive the first-stage arm 28 to rotate, controls the first hydraulic motor 49 to control the swing arm 29 to rotate, controls the second hydraulic cylinder 41 and the third hydraulic cylinder 42 to drive the second-stage arm 31 to rotate, drives the second telescopic arm 38 to extend and retract through the eighth hydraulic cylinder 62, drives the first-stage adjusting arm 32, the second-stage adjusting arm 33 and the third-stage adjusting arm 34 to rotate through the fourth hydraulic cylinder 43, and drives the working platform 12 to rotate through the third swing mechanism 48, thereby realizing low-altitude work of the working platform 12. In one embodiment, work vehicle 100 is capable of performing a low-level work in the range of 0 to-4 m in the Y direction and ±100° in the Z direction, from 1.5 to 4 m in the X direction based on the bottom surface of vertical arm 26.

When the working vehicle 100 performs a hoisting operation, as shown in fig. 9, an operator stands next to the vertical arm 26 to operate a button on the controller 57, and controls the first swing mechanism 46 to rotate the vertical arm 26 and simultaneously controls the first fixed arm 35, the first telescopic arm 36, and the hoisting device 75 to operate. In one embodiment, the work vehicle 100 is capable of performing a lifting operation of up to 500kg based on the X-direction 1.5-4 meters, the Y-direction 5 to 5 meters, and the Z-direction ±100° of the bottom surface of the vertical arm 26.

In the description of the present specification, reference is made to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., meaning that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (13)

1. The working arm of the working vehicle is characterized by comprising a first rotating arm group, a telescopic arm group and a second rotating arm group;

the first rotating arm set is suitable for being rotatably installed on a chassis of the working vehicle, and two ends of the telescopic arm set are rotatably connected with the first rotating arm set and the second rotating arm set respectively.

2. The work arm of claim 1, wherein the first swing arm set includes a vertical arm, a primary arm, and a swing arm rotatably connected in sequence, the vertical arm rotatably mounted to a chassis of the work vehicle, the swing arm rotatably connected to the telescopic arm set.

3. The work arm of claim 2 wherein the primary arm comprises a first fixed arm and a first telescoping arm, the first telescoping arm slidably disposed within the first fixed arm, the first fixed arm rotatably coupled to the upright arm, the first telescoping arm rotatably coupled to the swivel arm.

4. A boom according to claim 3, further comprising a lifting device mounted at an end of the first telescopic boom remote from the first fixed boom.

5. The work arm of claim 1, wherein the telescoping arm set includes a second fixed arm and a second telescoping arm, the second telescoping arm slidably disposed within the second fixed arm, the second fixed arm rotatably coupled to the first rotating arm set, the second telescoping arm rotatably coupled to the second rotating arm set.

6. The work arm of claim 1, wherein the second rotating arm set comprises a primary adjusting arm, a secondary adjusting arm and a tertiary adjusting arm which are sequentially connected in a rotating manner, and the primary adjusting arm is connected with the telescopic arm set.

7. A work vehicle, comprising:

a chassis;

an operation platform; and

the work arm of any of the preceding claims 1-6, said first set of swing arms being rotatably mounted on said chassis, said work platform being disposed on said second set of swing arms.

8. The work vehicle of claim 7, comprising a drive mechanism disposed on the work arm and a control system including a controller for controlling the drive mechanism to drive the work platform to different stations.

9. The work vehicle of claim 8 wherein said drive mechanism includes a lift mechanism disposed on said work arm, said control system including an angle sensor disposed on said work arm, said controller for controlling said lift mechanism to reach different stations based on a first angle signal from said angle sensor.

10. The work vehicle of claim 8 wherein said drive mechanism includes a swing mechanism disposed on said work arm, said control system including an encoder disposed on said swing mechanism, said controller for controlling said swing mechanism to cause said work platform to reach different stations based on a second angle signal from said encoder.

11. The work vehicle of claim 8, wherein the control system includes a pressure sensor disposed below the work platform, the controller configured to monitor a load weight of the work platform based on a pressure signal of the pressure sensor.

12. The work vehicle of claim 7 further comprising a stability retention mechanism comprising a hydraulic leg including a land, a drive bar, and a support block, the land being mounted below the chassis, the drive bar connecting the land and the support block, the support block being supported on a rail steel beam with the hydraulic leg extended.

13. The work vehicle of claim 12, wherein the stability retention mechanism further comprises a beam clasping device mounted below the chassis, the beam clasping device comprising a hook for connecting the chassis, a manual locking device for clamping the clamp to the rail steel beam to limit movement of the work vehicle when in a clamped state, and a clamp for allowing the work vehicle to travel along the rail steel beam when in an unlocked state.