Lifting arm provided with insulating structural member and used for construction of movable spanning frame

Abstract

The invention discloses a movable spanning frame construction lifting arm provided with an insulating structural member in the technical field of insulating structural member mounting equipment, which comprises a fixed bottom plate, a plurality of groups of mounting seats are fixedly mounted on the upper surface of the fixed bottom plate, outer lifting arms are fixedly mounted at the upper ends of the mounting seats, and first lifting arms are slidably connected in the outer lifting arms; a second lifting arm is slidably connected into the first lifting arm, an inner lifting arm is slidably connected into the second lifting arm, a mounting plate is fixedly mounted at the upper end of the inner lifting arm, a lower connecting plate is fixedly mounted on the lower surface of the mounting plate, and rotating equipment is arranged below the lower connecting plate; and the rotating device is fixedly installed on the lower connecting plate, a side connecting plate is fixedly installed at the output end of the rotating device, and the rotating device can drive the side connecting plate to rotate and can automatically lock the position of the side connecting plate. And the telescopic arm is used for automatically adjusting the sealing net in the air.

Description

Technical Field

[0001] The present invention relates to the technical field of insulating structural member installation equipment, and specifically to a lifting arm for the construction of a mobile crossing frame provided with an insulating structural member. Background Art

[0002] The crossing frame has an all-terrain tracked vehicle as a base, an automatic telescopic arm is arranged on the base, and an insulating component is arranged at the upper end of the automatic telescopic arm as a main body of the crossing frame.

[0003] In the prior art, the automatic telescopic arm is generally operated by remote control to perform lifting and adjustment to achieve zero-altitude operation and net sealing, so as to meet the construction needs of crossing frames other than high-speed railways and highways. In this way, the net sealing is generally carried out by the staff on land before the telescopic arm is deployed. All net sealing construction is completed on land to avoid high-altitude operations. After the net is sealed, the telescopic arm rises to drive the net sealing up. During this operation, the net sealing moves up with the telescopic arm. During the upward movement, the net sealing may move, making the net sealing position inaccurate when it rises to a high altitude, or when the net sealing at a high altitude needs to be adjusted, the telescopic arm still needs to be lowered again to adjust it, which is inconvenient to adjust the net sealing. Summary of the invention

[0004] The technical problem of the present invention is to provide a lifting arm for mobile crossing frame construction with an insulating structural member, so as to provide a telescopic arm that can automatically adjust the sealing net at high altitude while maintaining zero-altitude operation to ensure the safety of workers in construction.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a lifting arm for construction of a mobile crossing frame with an insulating structural member, comprising a fixed base plate, a plurality of mounting seats fixedly installed on the upper surface of the fixed base plate, an outer lifting arm fixedly installed on the upper end of the mounting seats, a first lifting arm slidably connected in the outer lifting arm, a second lifting arm slidably connected in the first lifting arm, an inner lifting arm slidably connected in the second lifting arm, a mounting plate fixedly installed on the upper end of the inner lifting arm, a lower connecting plate fixedly installed on the lower surface of the mounting plate, a rotating device is arranged below the lower connecting plate, the rotating device is fixedly installed on the lower connecting plate and a side connecting plate is fixedly installed on the output end, the rotating device can drive the side connecting plate to rotate and can automatically lock the position of the side connecting plate, a mounting disk is fixedly installed on the side connecting plate, a rotating seat is fixedly installed on the mounting disk, an operating mechanical arm is rotatably installed on the rotating seat, and a mechanical gripper is fixedly installed on the upper end of the operating mechanical arm.

[0006] As a further solution of the present invention, the rotating device includes an extension plate and a fixed plate, the extension plate is fixedly installed on the lower surface of the lower connecting plate, a fixing ring is fixedly installed on the lower end of the extension plate, a plurality of connecting frames are fixedly installed on the outside of the fixing ring, a fixed gear ring is fixedly installed on one end of the connecting frame away from the fixing ring, an input shaft is rotatably installed in the fixing ring, and an intermediate gear is fixedly installed on one end of the input shaft away from the fixing ring.

[0007] As a further solution of the present invention, the fixed plate is fixed at both ends of the lower surface of the side connecting plate, and the output shaft is fixedly installed on the fixed plate. The output shaft passes through the fixed plate, and a follower is fixedly installed at one end of the output shaft close to the intermediate gear, and planetary gears are fixedly installed at both ends of the follower away from the output shaft, and the planetary gears are located between the intermediate gear and the fixed gear ring, and the planetary gears are meshed with the intermediate gear and the fixed gear ring.

[0008] As a further solution of the present invention, positioning tooth plates are fixedly installed on both symmetrical sides of the first lifting arm, the second lifting arm and the inner lifting arm, tooth plate grooves are opened at positions corresponding to the positioning tooth plates on the outer lifting arm, the first lifting arm and the second lifting arm, gear grooves are opened on one side corresponding to the gear plate grooves on the outer lifting arm, the first lifting arm and the second lifting arm, internal gears are rotatably installed in the gear grooves, a driving shaft is fixedly installed on the internal gear, and the end of the driving shaft away from the internal gear extends to the outside of the outer lifting arm, the first lifting arm and the second lifting arm.

[0009] As a further solution of the present invention, a movable seat is fixedly installed on the outer surface of the outer lifting arm, the first lifting arm and the second lifting arm and on one side corresponding to the positioning tooth plate, and a side mounting shaft is rotatably installed on the movable seat, and driving wheels are fixedly installed on both ends of the side mounting shaft, and driven wheels are fixedly installed on the driving shaft, and a transmission belt is connected to the outer shell of the driving wheel and the driven wheel.

[0010] As a further solution of the present invention, a side limit plate is fixedly installed on one side of the movable seat, a driving shaft is rotatably installed on the side limit plate, a driving gear is fixedly installed on the driving shaft, a driven gear is fixedly installed on the side mounting shaft at a position corresponding to the driving gear, the driven gear is meshed with the driving gear, a micro motor is fixedly installed on the side limit plate, and the output end of the micro motor is fixedly connected to the driving shaft.

[0011] As a further solution of the present invention, a rotating motor is fixedly installed on the extension plate, the output end of the rotating motor is fixedly connected to the input shaft, and two groups of outer lifting arms are provided with control components fixedly installed thereon, and the control components can drive micro motors at the same height to start simultaneously.

[0012] As a further solution of the present invention, a mounting hole is provided at the bottom of the fixed base plate, and the mounting hole is fixedly mounted to the base of the crawler vehicle. A picture acquisition device is provided at one end of the mechanical gripper close to the operating mechanical arm.

[0013] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the outer lifting arm, the first lifting arm, the second lifting arm and the inner lifting arm are extended and raised, so that the insulating structure is sent to a high altitude position. During the upward movement of the insulating structure, the lower connecting plate and the side connecting plate are moved up to the high altitude position together with the mounting plate, thereby driving the operating mechanical arm to move up together with the insulating structure and the sealing net, thereby ensuring that after the telescopic arm is raised, the position of the insulating structure and the sealing net can still be adjusted by remotely controlling the mechanical arm and the mechanical gripper, thereby avoiding the risk of manual high-altitude operation and the trouble of repeatedly moving the telescopic arm up and down to adjust the insulating structure and the sealing net.

[0014] The operating robot arm and the mechanical gripper in the present invention move up with the mounting plate, which is convenient for position adjustment and installation of insulating structural members and sealing nets at high places. In actual operation, the input shaft in the rotating device drives the fixed plate to rotate, and the side connecting plate is driven to rotate by the rotation of the fixed plate, and the mounting plate is driven to rotate by the rotation of the side connecting plate, thereby driving the operating robot arm and the mechanical gripper to rotate between the two groups of mounting plates, making it convenient to adjust the working angles of the mechanical gripper and the operating robot arm, and making it convenient to perform more comprehensive and specific position adjustment of the insulating structural members and sealing nets on the mounting plate, and the position of the operating robot arm and the mechanical gripper can be automatically locked, thereby increasing stability and safety during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A partial schematic diagram of the structure at A in the middle; Figure 3 This is a schematic diagram of the side view structure of the present invention; Figure 4 For the present invention Figure 3 A partial schematic diagram of the structure at B in the middle; Figure 5 For the present invention Figure 3A partial schematic diagram of the structure at C in the middle; Figure 6 For the present invention Figure 3 A partial schematic diagram of the structure at D in the middle; Figure 7 It is a structural cross-sectional view of the present invention; Figure 8 For the present invention Figure 7 Partial schematic diagram of the structure at E in the middle.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Fixed bottom plate; 2. Mounting seat; 3. Outer lifting arm; 4. First lifting arm; 5. Second lifting arm; 6. Inner lifting arm; 7. Positioning tooth plate; 8. Mounting plate; 9. Lower connecting plate; 10. Side connecting plate; 11. Fixed plate; 12. Mounting plate; 13. Rotating seat; 14. Operating mechanical arm; 15. Mechanical gripper; 16. Fixed gear ring; 17. Tooth plate groove; 18. Driving shaft; 19. Side mounting shaft; 20. Transmission belt; 21. Driven wheel; 22. Driving wheel; 23. Driving shaft; 24. Driving gear; 25. Driven gear; 26. Movable seat; 27. Side limit plate; 28. Extension plate; 29. ​​Fixed ring; 30. Input shaft; 31. Intermediate gear; 32. Planetary gear; 33. Driven member; 34. Output shaft; 35. Connecting frame; 36. Internal gear; 37. Gear groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 8The present invention provides a technical solution: a lifting arm for construction of a mobile crossing frame with an insulating structural member, comprising a fixed base plate 1, a plurality of mounting seats 2 are fixedly installed on the upper surface of the fixed base plate 1, an outer lifting arm 3 is fixedly installed on the upper end of the mounting seat 2, a first lifting arm 4 is slidably connected in the outer lifting arm 3, a second lifting arm 5 is slidably connected in the first lifting arm 4, an inner lifting arm 6 is slidably connected in the second lifting arm 5, a mounting plate 8 is fixedly installed on the upper end of the inner lifting arm 6, a lower connecting plate 9 is fixedly installed on the lower surface of the mounting plate 8, a rotating device is arranged below the lower connecting plate 9, the rotating device is fixedly installed on the lower connecting plate 9 and a side connecting plate 10 is fixedly installed on the output end, the rotating device can drive the side connecting plate 10 to rotate and can automatically lock the position of the side connecting plate 10, a mounting disk 12 is fixedly installed on the side connecting plate 10, a rotating seat 13 is fixedly installed on the mounting disk 12, an operating mechanical arm 14 is rotatably installed on the rotating seat 13, and a mechanical gripper 15 is fixedly installed on the upper end of the operating mechanical arm 14.

[0020] During operation, after the land operation is completed in the present invention, the outer lifting arm 3, the first lifting arm 4, the second lifting arm 5 and the inner lifting arm 6 are extended and lifted (the micro motors on the two sets of outer lifting arms 3 rotate simultaneously, thereby driving the driving shaft 23 to rotate, the driving shaft 23 rotates to drive the driving gear 24 to rotate, the driving gear 24 rotates to drive the driven gear 25 meshing therewith to rotate, the driven gear 25 rotates to drive the side installation shaft 19 to rotate, the side installation shaft 19 rotates to drive the driving wheel 22 to rotate, the driving wheel 22 rotates to drive the driven wheel 21 to rotate through the transmission belt 20, the driven wheel 21 rotates to drive the driving shaft 18 to rotate, the driving shaft 18 rotates to drive the internal gear 36 to rotate, the internal gear 36 rotates to interact with the positioning gear plate 7 , thereby driving the first lifting arm 4 to move upward, and as the lifting height increases, the micro motors on the first lifting arm 4 and the second lifting arm 5 are driven to rotate in turn), thereby sending the insulating structure to a high altitude position. During the upward movement of the insulating structure, the lower connecting plate 9 and the side connecting plate 10 are moved up to the high altitude position along with the mounting plate 8, thereby driving the operating mechanical arm 14 to move upward, which can move up together with the insulating structure and the sealing net, thereby ensuring that after the telescopic arm rises, the position of the insulating structure and the sealing net can still be adjusted by remotely controlling the operating mechanical arm 14 and the mechanical gripper 15, thereby avoiding the risk of manual high-altitude operation and the trouble of repeatedly moving the telescopic arm up and down to adjust the insulating structure and the sealing net.

[0021] In the present invention, the outer lifting arm 3, the first lifting arm 4, the second lifting arm 5 and the inner lifting arm 6 are extended and raised, so as to send the insulating structure to a high altitude position. During the upward movement of the insulating structure, the lower connecting plate 9 and the side connecting plate 10 are moved up to the high altitude position together with the mounting plate 8, thereby driving the operating mechanical arm 14 to move up together with the insulating structure and the sealing net, thereby ensuring that after the telescopic arm is raised, the position of the insulating structure and the sealing net can still be adjusted by remotely controlling the operating mechanical arm 14 and the mechanical gripper 15, avoiding the risk of manual high-altitude operation and the trouble of repeatedly moving the telescopic arm up and down to adjust the insulating structure and the sealing net.

[0022] As a further solution of the present invention, the rotating device includes an extension plate 28 and a fixed plate 11, the extension plate 28 is fixedly installed on the lower surface of the lower connecting plate 9, a fixing ring 29 is fixedly installed at the lower end of the extension plate 28, a plurality of connecting frames 35 are fixedly installed on the outside of the fixing ring 29, a fixed gear ring 16 is fixedly installed on one end of the connecting frame 35 away from the fixing ring 29, an input shaft 30 is rotatably installed in the fixing ring 29, and an intermediate gear 31 is fixedly installed on one end of the input shaft 30 away from the fixing ring 29.

[0023] During operation, the operating mechanical arm 14 and the mechanical gripper 15 move upward with the mounting plate 8, which is convenient for adjusting the position and installing the insulating structural parts and the sealing net at a high place. In the actual operation process, the input shaft 30 in the rotating device drives the fixed plate 11 to rotate, and the fixed plate 11 rotates to drive the side connecting plate 10 to rotate (the rotating motor drives the input shaft 30 to rotate, and the input shaft 30 rotates to drive the intermediate gear 31 to rotate. The rotation of the intermediate gear 31 interacts with the planetary gear 32, thereby driving the planetary gear 32 to move between the fixed gear ring 16, thereby driving the driven member 33 to rotate, and the driven member 33 rotates to drive the output shaft 34 to rotate, and the output shaft 34 rotates to drive the fixed plate 11 to rotate). The mounting plate 8 is driven to rotate by the rotation of the side connecting plate 10, thereby driving the operating mechanical arm 14 and the mechanical gripper 15 to rotate between the two groups of mounting plates 8, so as to facilitate the adjustment of the working angles of the mechanical gripper 15 and the operating mechanical arm 14, and facilitate more comprehensive and specific position adjustment of the insulating structural parts and the sealing net on the mounting plate 8, and the positions of the operating mechanical arm 14 and the mechanical gripper 15 can be automatically locked, thereby increasing stability and safety during operation.

[0024] In the present invention, the operating robot arm 14 and the mechanical gripper 15 move upward with the mounting plate 8, which is convenient for adjusting the position and installing the insulating structural parts and the sealing net at a high place. In the actual operation process, the input shaft 30 in the rotating device drives the fixed plate 11 to rotate, and the rotation of the fixed plate 11 drives the side connecting plate 10 to rotate, and the rotation of the side connecting plate 10 drives the mounting plate 8 to rotate, thereby driving the operating robot arm 14 and the mechanical gripper 15 to rotate between the two groups of mounting plates 8, which is convenient for adjusting the working angles of the mechanical gripper 15 and the operating robot arm 14, and convenient for more comprehensive and specific position adjustment of the insulating structural parts and the sealing net on the mounting plate 8, and the position of the operating robot arm 14 and the mechanical gripper 15 can be automatically locked, thereby increasing stability and safety during operation.

[0025] As a further solution of the present invention, the fixed plate 11 is fixed at both ends of the lower surface of the side connecting plate 10, and an output shaft 34 is fixedly installed on the fixed plate 11. The output shaft 34 passes through the fixed plate 11, and a follower 33 is fixedly installed at one end of the output shaft 34 close to the intermediate gear 31. Planetary gears 32 are fixedly installed at both ends of the follower 33 away from the output shaft 34. The planetary gears 32 are located between the intermediate gear 31 and the fixed gear ring 16, and the planetary gears 32 are meshed with the intermediate gear 31 and the fixed gear ring 16.

[0026] During operation, the rotating motor drives the input shaft 30 to rotate, the rotation of the input shaft 30 drives the intermediate gear 31 to rotate, the rotation of the intermediate gear 31 interacts with the planetary gear 32, thereby driving the planetary gear 32 to move between the fixed gear ring 16, thereby driving the driven member 33 to rotate, the rotation of the driven member 33 drives the output shaft 34 to rotate, and the rotation of the output shaft 34 drives the fixed plate 11 to rotate.

[0027] As a further solution of the present invention, positioning tooth plates 7 are fixedly installed on both symmetrical sides of the first lifting arm 4, the second lifting arm 5 and the inner lifting arm 6, and tooth plate grooves 17 are opened at positions corresponding to the positioning tooth plates 7 on the outer lifting arm 3, the first lifting arm 4 and the second lifting arm 5, and gear grooves 37 are opened on one side of the outer lifting arm 3, the first lifting arm 4 and the second lifting arm 5 corresponding to the tooth plate groove 17, and an internal gear 36 is rotatably installed in the gear groove 37, and a drive shaft 18 is fixedly installed on the internal gear 36, and the end of the drive shaft 18 away from the internal gear 36 extends to the outside of the outer lifting arm 3, the first lifting arm 4 and the second lifting arm 5.

[0028] During operation, the micro motors on the two sets of outer lifting arms 3 rotate simultaneously, thereby driving the driving shaft 23 to rotate, the driving shaft 23 rotates to drive the driving gear 24 to rotate, the driving gear 24 rotates to drive the driven gear 25 meshing therewith to rotate, the driven gear 25 rotates to drive the side mounting shaft 19 to rotate, the side mounting shaft 19 rotates to drive the driving wheel 22 to rotate, the driving wheel 22 rotates to drive the driven wheel 21 to rotate through the transmission belt 20, the driven wheel 21 rotates to drive the driving shaft 18 to rotate, the driving shaft 18 rotates to drive the internal gear 36 to rotate, the internal gear 36 rotates to interact with the positioning gear plate 7, thereby driving the first lifting arm 4 to move upward, and as the lifting height increases, the micro motors on the first lifting arm 4 and the second lifting arm 5 are driven to rotate in turn.

[0029] As a further solution of the present invention, a movable seat 26 is fixedly installed on the outer surfaces of the outer lifting arm 3, the first lifting arm 4 and the second lifting arm 5 and on one side corresponding to the positioning tooth plate 7, and a side mounting shaft 19 is rotatably mounted on the movable seat 26, and a driving wheel 22 is fixedly installed on both ends of the side mounting shaft 19, and a driven wheel 21 is fixedly installed on the driving shaft 18, and a transmission belt 20 is connected to the outer sleeve of the driving wheel 22 and the driven wheel 21.

[0030] As a further solution of the present invention, a side limit plate 27 is fixedly installed on one side of the movable seat 26, a driving shaft 23 is rotatably installed on the side limit plate 27, a driving gear 24 is fixedly installed on the driving shaft 23, a driven gear 25 is fixedly installed on the side mounting shaft 19 at a position corresponding to the driving gear 24, the driven gear 25 is meshed with the driving gear 24, a micro motor is fixedly installed on the side limit plate 27, and the output end of the micro motor is fixedly connected to the driving shaft 23.

[0031] As a further solution of the present invention, a rotating motor is fixedly installed on the extension plate 28, and the output end of the rotating motor is fixedly connected to the input shaft 30. Two groups of outer lifting arms 3 are provided and control components are fixedly installed on them. The control components can drive micro motors at the same height to start simultaneously.

[0032] As a further solution of the present invention, a mounting hole is provided at the bottom of the fixed base plate 1, and the mounting hole is fixedly installed with the base of the crawler vehicle. A picture acquisition device is provided at one end of the mechanical gripper 15 close to the operating mechanical arm 14.

Claims

1. A lifting arm for mobile spanning frame construction provided with insulating structural members, comprising a fixed bottom plate (1), characterized in that: A plurality of mounting seats (2) are fixedly mounted on the upper surface of the fixed base plate (1); an outer lifting arm (3) is fixedly mounted on the upper end of each mounting seat (2); a first lifting arm (4) is slidably connected to the inner side of the outer lifting arm (3); a second lifting arm (5) is slidably connected to the inner side of the first lifting arm (4); an inner lifting arm (6) is slidably connected to the inner side of the second lifting arm (5); a mounting plate (8) is fixedly mounted on the upper end of the inner lifting arm (6); a lower connecting plate (9) is fixedly mounted on the lower surface of the mounting plate (8); and a lower connecting plate (9) is fixedly mounted on the lower side of the lower connecting plate (9). A rotating device is provided on the side, the rotating device is fixedly mounted on the lower connecting plate (9) and a side connecting plate (10) is fixedly mounted on the output end, the rotating device can drive the side connecting plate (10) to rotate and can automatically lock the position of the side connecting plate (10), a mounting plate (12) is fixedly mounted on the side connecting plate (10), a rotating seat (13) is fixedly mounted on the mounting plate (12), an operating mechanical arm (14) is rotatably mounted on the rotating seat (13), and a mechanical gripper (15) is fixedly mounted on the upper end of the operating mechanical arm (14).

2. The lifting arm for construction of a mobile spanning frame provided with an insulating structural member according to claim 1, characterized in that: The rotating device comprises an extension plate (28) and a fixed plate (11); the extension plate (28) is fixedly mounted on the lower surface of the lower connecting plate (9); a fixed ring (29) is fixedly mounted on the lower end of the extension plate (28); a plurality of connecting frames (35) are fixedly mounted on the outer side of the fixing ring (29); a fixed gear ring (16) is fixedly mounted on one end of the connecting frame (35) away from the fixing ring (29); an input shaft (30) is rotatably mounted in the fixing ring (29); and an intermediate gear (31) is fixedly mounted on one end of the input shaft (30) away from the fixing ring (29).

3. The lifting arm for construction of a mobile spanning frame provided with an insulating structural member according to claim 2, characterized in that: The fixing plate (11) is fixed to both ends of the lower surface of the side connecting plate (10); an output shaft (34) is fixedly mounted on the fixing plate (11); the output shaft (34) passes through the fixing plate (11); a driven member (33) is fixedly mounted on one end of the output shaft (34) close to the intermediate gear (31); planetary gears (32) are fixedly mounted on both ends of the driven member (33) away from the output shaft (34); the planetary gears (32) are located between the intermediate gear (31) and the fixed gear ring (16); and the planetary gears (32) are meshed with the intermediate gear (31) and the fixed gear ring (16).

4. The lifting arm for construction of a mobile spanning frame provided with an insulating structural member according to claim 3, characterized in that: Positioning toothed plates (7) are fixedly mounted on symmetrical sides of the first lifting arm (4), the second lifting arm (5) and the inner lifting arm (6); toothed plate grooves (17) are provided at positions corresponding to the positioning toothed plates (7) on the outer lifting arm (3), the first lifting arm (4) and the second lifting arm (5); gear grooves (37) are provided on one side corresponding to the toothed plate grooves (17) on the outer lifting arm (3), the first lifting arm (4) and the second lifting arm (5); an internal gear (36) is rotatably mounted in the gear grooves (37); a drive shaft (18) is fixedly mounted on the internal gear (36); an end of the drive shaft (18) away from the internal gear (36) extends to the outside of the outer lifting arm (3), the first lifting arm (4) and the second lifting arm (5).

5. The lifting arm for construction of a mobile spanning frame provided with an insulating structural member according to claim 4, characterized in that: A movable seat (26) is fixedly mounted on the outer surfaces of the outer lifting arm (3), the first lifting arm (4) and the second lifting arm (5) and on one side corresponding to the positioning tooth plate (7); a side mounting shaft (19) is rotatably mounted on the movable seat (26); driving wheels (22) are fixedly mounted on both ends of the side mounting shaft (19); a driven wheel (21) is fixedly mounted on the driving shaft (18); and a transmission belt (20) is connected to the outer shells of the driving wheel (22) and the driven wheel (21).

6. The lifting arm for construction of a mobile spanning frame provided with an insulating structural member according to claim 5, characterized in that: A side limit plate (27) is fixedly mounted on one side of the movable seat (26), a driving shaft (23) is rotatably mounted on the side limit plate (27), a driving gear (24) is fixedly mounted on the driving shaft (23), a driven gear (25) is fixedly mounted on the side mounting shaft (19) at a position corresponding to the driving gear (24), the driven gear (25) meshes with the driving gear (24), a micro motor is fixedly mounted on the side limit plate (27), and an output end of the micro motor is fixedly connected to the driving shaft (23).

7. The lifting arm for construction of a mobile spanning frame provided with an insulating structural member according to claim 6, characterized in that: A rotating motor is fixedly mounted on the extension plate (28), the output end of the rotating motor is fixedly connected to the input shaft (30), and two groups of outer lifting arms (3) are provided and control components are fixedly mounted on both groups, and the control components can drive micro motors at the same height to start simultaneously.

8. The lifting arm for construction of a mobile spanning frame provided with an insulating structural member according to claim 7, characterized in that: The bottom of the fixed base plate (1) is provided with a mounting hole, the mounting hole being fixedly mounted to the crawler vehicle base, and an image acquisition device is provided at one end of the mechanical gripper (15) close to the operating mechanical arm (14).

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