Mechanical lifting type engineering machinery transfer device

Abstract

The invention belongs to the technical field of mechanical transfer, and particularly relates to a mechanical lifting type engineering machinery transfer device which comprises a movable vehicle body. The supporting column is rotationally connected to the movable vehicle body; the cantilever is rotationally connected to the top of the supporting column; the clamping mechanism is arranged below the cantilever; the anti-shaking assemblies are arranged on the two sides of the clamping mechanism; under the control of a photoelectric sensor, a clamping mechanism is moved to the position over a containing basket, then an electric push rod is started, a second rack is driven to move through the output end of the electric push rod, a driving wheel is driven to rotate through the second rack, a connecting rod is driven to rotate through the driving wheel, and a driven wheel is driven to rotate through the connecting rod; the first racks on the two sides are driven by the driven wheels to move inwards at the same time, the sliding frames are driven by the first racks to move inwards at the same time, and the clamping hooks are driven by the sliding frames to move inwards at the same time till the clamping hooks clamp the containing baskets, so that the functions of automatic centering and automatic clamping are achieved, and the rapid transferring effect is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical transfer, in particular to a mechanical lifting type engineering machinery transfer device. Background Art

[0002] During the manufacturing process of mechanical parts, it is usually necessary to use a transfer device to transfer parts from one process to another, so as to achieve fast and accurate transfer of parts between different processes and improve the production efficiency of mechanical parts. Mechanical transfer is widely used in mechanical processing, automobile manufacturing, electronic manufacturing and other fields.

[0003] A Chinese patent with publication number CN112919337A discloses a mechanical lifting type engineering machinery transfer device, including a base, a turntable is rotatably connected to the upper side of the base, a support column is fixedly connected to the upper side of the turntable, a crossbeam is fixedly connected to the right side of the support column, a slide groove is provided on the inner side of the lower end of the crossbeam, a screw rod is rotatably connected to the inside of the slide groove, a slider is connected to the outer side of the screw rod through threaded engagement, a second motor is fixedly connected to the lower end of the slider, a traction rope is rotatably hinged to the output shaft of the second motor, and a hook is fixedly connected to the lower end of the traction rope; when the engineering machinery needs to be transferred, the device is first moved to the top of the engineering machinery, and then the second motor is controlled to reverse so that the hook hooks the engineering machinery, and then the second motor is controlled to rotate forward to pull up the engineering machinery, and then the first motor is rotated, and the first motor drives the screw rod to rotate through the first pulley to adjust the lateral position of the slider and the engineering machinery, and then the third motor is started, and the third motor drives the rotating shaft and the rotating wheel to rotate through the second pulley to make the support rod do a circular motion around the support column, so that the engineering machinery can be transferred to a specified position.

[0004] In the above technology, hooks are provided for hanging most products for transfer, but one person is required to hang the products on the hooks with ropes from below, which is not only inconvenient, but also poses a safety hazard to people if the hooks fall. In addition, during the transportation process, if external forces are encountered, the traction ropes and hooks are prone to swing, and the products cannot be accurately transferred to the designated location, resulting in unstable stacking.

[0005] To this end, the present invention provides a mechanical lifting type engineering machinery transfer device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a mechanical lifting type engineering machinery transfer device described in the present invention comprises: Moving the vehicle body; Rotating a support column connected to the moving vehicle body; rotating a cantilever arm connected to the top of a support column; A clamping mechanism disposed below the cantilever; Anti-sway components provided on both sides of the clamping mechanism; The clamping mechanism includes two hooks and a sliding frame; an electric slide rail is fixedly connected to the bottom of the cantilever; a winding box is slidably connected to the electric slide rail; the lower part of the winding box is connected to the cross plate by two steel ropes; a connecting rod is rotatably connected to the cross plate, and a driven wheel is fixedly connected to the bottom end of the connecting rod, and a first rack is provided on both sides of the driven wheel, and the first racks are meshed with the driven wheels; the two first racks are symmetrical about the center of the driven wheel; one end of the two driven wheels is fixedly connected to a sliding frame; two guide rails are fixedly connected to the bottom of the cross plate, and both ends of the sliding frame slide on the guide rails; the hooks are respectively fixed to the bottoms of the two sliding frames; and a driving mechanism is provided at the top of the connecting rod.

[0008] Preferably, the driving mechanism includes a driving wheel fixedly connected to the top of the connecting rod, an electric push rod is fixedly connected to the top of the cross plate, a second rack is fixedly connected to the output end of the electric push rod, and the second rack is meshed with the driving wheel.

[0009] Preferably, the anti-sway assembly includes a first auxiliary rope, a second auxiliary rope, a first counterweight and a second counterweight; one end of the cantilever is fixedly connected to a first slide rail, and the support column is fixedly connected to a second slide rail; the first counterweight is slidably connected to the first slide rail; the two ends of the first auxiliary rope are respectively fixedly connected to the first counterweight and the cross plate; the second counterweight is slidably connected to the second slide rail; the two ends of the second auxiliary rope are respectively fixedly connected to the second counterweight and the cross plate.

[0010] Preferably, a first gear is fixedly connected to the outer wall of the bottom end of the support column; a second gear is rotatably connected to the mobile body via a pin shaft, and the first gear is meshed with the second gear; an L-shaped plate is fixedly connected to the mobile body, a motor is fixedly connected to the bottom of the L-shaped plate, and the output shaft of the motor is fixedly connected to the second gear.

[0011] Preferably, the top end of the support column is fixedly connected to a fixing plate, the fixing plate is fixedly connected to a first mounting frame, the bottom of the cantilever is fixedly connected to a second mounting frame, a cylinder is provided between the first mounting frame and the second mounting frame, and both ends of the cylinder are rotatably connected to the first mounting frame and the second mounting frame respectively.

[0012] Preferably, photoelectric sensors are fixedly connected to the inner walls of the tops of the hooks, the photoelectric sensors are electrically connected to the electric slide rails, and the photoelectric sensors are electrically connected to the motors.

[0013] Preferably, pressure sensors are fixedly connected to the inner side walls of the hooks; and the pressure sensors are electrically connected to the electric push rods.

[0014] Preferably, two limit blocks are fixedly connected to the top of the transverse plate, and a sliding opening is provided on the second rack, and the limit blocks slide in the sliding opening.

[0015] The beneficial effects of the present invention are as follows: 1. A mechanical lifting engineering machinery transfer device described in the present invention, through the cooperation of a photoelectric sensor, a pressure sensor, a sliding frame and a hook, under the control of the photoelectric sensor, the clamping mechanism is moved to the top of the placement basket, stops moving, and by transmitting a signal to the control program, the control program controls the winder in the winding box, and drives the wire rope to move downward to the position where the basket is placed through the winder, and then by turning on the electric push rod, the second rack is driven to move through the output end of the electric push rod, the driving wheel is driven to rotate through the second rack, the connecting rod is driven to rotate through the driving wheel, the driven wheel is driven to rotate through the connecting rod, the first racks on both sides are driven to move inward at the same time through the driven wheel, the sliding frame is driven to move inward at the same time through the first rack, and the hook is driven to move inward at the same time through the sliding frame until the hook clamps the placement basket, thereby realizing the functions of automatic centering and automatic clamping, and achieving the effect of rapid transportation; wherein in the process of driving the hook to move inward to clamp the placement basket, when the placement basket contacts the pressure sensor, the signal is transmitted to the control system through the pressure sensor, and the control system controls the electric push rod to be closed, so that the hook stops moving.

[0016] 2. The mechanical lifting engineering machinery transfer device described in the present invention cooperates with the first auxiliary rope, the second auxiliary rope, the first counterweight block and the second counterweight block. During the transfer process, the clamping mechanism drives one end of the first auxiliary rope and the second auxiliary rope to move through the cross plate, while the other ends of the first auxiliary rope and the second auxiliary rope are respectively kept taut by the first counterweight block and the second counterweight block, thereby preventing the clamping mechanism from shaking; when the placement basket is not hung, it may shake due to wind force and cantilever shaking. At this time, the first counterweight block and the second counterweight block slide on the first slide rail and the second slide rail respectively with the cross plate and will not shake; after the placement basket is hung, with the cooperation of the placement basket's own gravity, the possibility of shaking is reduced, thereby completing the transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 is a stereogram of the present invention; Figure 2 It is a schematic diagram of the structure of the hook and the sliding frame in the present invention; Figure 3It is a schematic diagram of the structure of the driven wheel and the first rack in the present invention; Figure 4 It is a schematic diagram of the structure of the driving wheel and the second rack in the present invention; Figure 5 It is a schematic diagram of the structure of the first auxiliary rope and the second auxiliary rope in the present invention; Figure 6 It is a schematic diagram of the structure of the support column and the cantilever in the present invention; Figure 7 It is a structural schematic diagram of the guide rail in the present invention; In the figure: 1. mobile body; 11. support column; 12. fixed plate; 13. first mounting frame; 14. cylinder; 15. second mounting frame; 16. first gear; 17. second gear; 18. motor; 19. L-shaped plate; 2. cantilever; 21. winding box; 22. wire rope; 23. electric slide rail; 3. cross plate; 31. guide rail; 32. slide frame; 33. hook; 34. photoelectric sensor; 35. pressure sensor; 36. driven wheel; 361. first rack; 362. connecting rod; 363. driving wheel; 364. second rack; 365. electric push rod; 366. limit block; 367. sliding port; 4. first slide rail; 41. first counterweight block; 42. first auxiliary rope; 43. second slide rail; 44. second counterweight block; 45. second auxiliary rope. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] like Figures 1 to 7 As shown, a mechanical lifting engineering machinery transfer device according to an embodiment of the present invention comprises: a mobile body 1; a support column 11 rotatably connected to the mobile body 1; a cantilever 2 rotatably connected to the top of the support column 11; a clamping mechanism arranged below the cantilever 2; anti-sway components arranged on both sides of the clamping mechanism; the clamping mechanism comprises two hooks 33 and a sliding frame 32; an electric slide rail 23 is fixedly connected to the bottom of the cantilever 2; a winding box 21 is slidably connected to the electric slide rail 23; the lower part of the winding box 21 is connected to a horizontal plate 3 by two steel wire ropes 22; the horizontal plate 3 is rotatably connected to the cantilever 2. A connecting rod 362 is connected, and a driven wheel 36 is fixedly connected to the bottom end of the connecting rod 362. First racks 361 are provided on both sides of the driven wheel 36, and the first racks 361 are meshed with the driven wheel 36; the two first racks 361 are symmetrical about the center of the circle of the driven wheel 36; one end of the two driven wheels 36 is fixedly connected to a sliding frame 32; two guide rails 31 are fixedly connected to the bottom of the cross plate 3, and both ends of the sliding frame 32 slide on the guide rails 31; the hooks 33 are respectively fixed to the bottoms of the two sliding frames 32; and a driving mechanism is provided at the top of the connecting rod 362.

[0021] After the mechanical parts are manufactured, they are usually placed in a placement basket and then transferred and stacked. During the transfer, hooks are used in the prior art, but one person is required to hang the products on the hooks, which is not only inconvenient, but also poses a safety hazard to people if the hooks fall off. When the clamping mechanism provided by the present invention is used, a lighting strip is set on the midline of the placement basket. When adjusting the clamping mechanism, under the control of the photoelectric sensor 34, the clamping mechanism is moved to the top of the placement basket, and then the connecting rod 362 is driven to rotate by the driving mechanism, and the driven wheel 36 is driven to rotate by the connecting rod 362. The first racks 361 on both sides are driven to move inward at the same time by the driven wheel 36, and the sliding frame 32 is driven to move inward at the same time by the first rack 361, and the hook 33 is driven to move inward at the same time by the sliding frame 32, until the hook 33 clamps the placement basket, thereby realizing the functions of automatic centering and automatic clamping, and achieving the effect of rapid transportation.

[0022] like Figure 2 and Figure 4 As shown, the driving mechanism includes a driving wheel 363 fixedly connected to the top of the connecting rod 362, an electric push rod 365 is fixedly connected to the top of the cross plate 3, and a second rack 364 is fixedly connected to the output end of the electric push rod 365, and the second rack 364 is meshed with the driving wheel 363.

[0023] The driving mechanism provided by the present invention is used to drive the driven wheel 36 to rotate when in use. The electric push rod 365 is turned on, and the second rack 364 is driven to move through the output end of the electric push rod 365, and the driving wheel 363 is driven to rotate through the second rack 364, and the connecting rod 362 is driven to rotate through the driving wheel 363, and the driven wheel 36 is driven to rotate through the connecting rod 362, thereby realizing the function of driving the driven wheel 36 to rotate.

[0024] like Figure 1 and Figure 5 As shown, the anti-sway assembly includes a first auxiliary rope 42, a second auxiliary rope 45, a first counterweight block 41 and a second counterweight block 44; one end of the cantilever 2 is fixedly connected to the first slide rail 4, and the support column 11 is fixedly connected to the second slide rail 43; the first counterweight block 41 is slidably connected to the first slide rail 4; the two ends of the first auxiliary rope 42 are respectively fixedly connected to the first counterweight block 41 and the cross plate 3; the second counterweight block 44 is slidably connected to the second slide rail 43; the two ends of the second auxiliary rope 45 are respectively fixedly connected to the second counterweight block 44 and the cross plate 3.

[0025] The anti-sway component provided by the present invention is used to prevent the wire rope 22 clamping mechanism from swaying during the transfer process. During the transfer process, the clamping mechanism drives one end of the first auxiliary rope 42 and the second auxiliary rope 45 to move through the cross plate 3, and the other ends of the first auxiliary rope 42 and the second auxiliary rope 45 are respectively kept taut by the first counterweight block 41 and the second counterweight block 44, thereby preventing the clamping mechanism from swaying; when the placement basket is not hung, it may sway due to wind force and the shaking of the cantilever 2. At this time, the first counterweight block 41 and the second counterweight block 44 slide on the first slide rail 4 and the second slide rail 43 respectively with the cross plate 3 and will not sway; after the placement basket is hung, with the cooperation of the placement basket's own gravity, the possibility of swaying is reduced, thereby completing the transfer.

[0026] like Figure 6 As shown, a first gear 16 is fixedly connected to the outer wall of the bottom end of the support column 11; a second gear 17 is rotatably connected to the mobile body 1 through a pin shaft, and the first gear 16 is meshed with the second gear 17; an L-shaped plate 19 is fixedly connected to the mobile body 1, and a motor 18 is fixedly connected to the bottom of the L-shaped plate 19, and the output shaft of the motor 18 is fixedly connected to the second gear 17.

[0027] The first gear 16 and the second gear 17 provided by the present invention are used to drive the support column 11 to rotate when in use. By turning on the motor 18, the second gear 17 is driven to rotate by the output shaft of the motor 18, the first gear 16 is driven to rotate by the second gear 17, the support column 11 is driven to rotate by the first gear 16, and the cantilever 2, the clamping mechanism and the placement basket are driven to rotate by the support column 11, thereby transferring the placement basket to different directions and expanding the applicability of the transfer.

[0028] like Figure 6 As shown, a fixing plate 12 is fixedly connected to the top of the support column 11, a first mounting frame 13 is fixedly connected to the fixing plate 12, a second mounting frame 15 is fixedly connected to the bottom of the cantilever 2, a cylinder 14 is provided between the first mounting frame 13 and the second mounting frame 15, and both ends of the cylinder 14 are rotatably connected to the first mounting frame 13 and the second mounting frame 15 respectively.

[0029] The cylinder 14 provided by the present invention is used to drive the cantilever 2 to rotate when in use. By turning on the cylinder 14, the output end of the cylinder 14 drives the cantilever 2 to rotate through the second mounting bracket 15, thereby expanding the space for the cantilever 2 to rotate up and down and expanding the upper and lower spatial positions of the transfer.

[0030] like Figure 2 As shown, a photoelectric sensor 34 is fixedly connected to the top inner wall of the hook 33 , and the photoelectric sensor 34 is electrically connected to the electric slide rail 23 , and the photoelectric sensor 34 is electrically connected to the motor 18 .

[0031] When the photoelectric sensor 34 provided by the present invention is in use, a light strip is set on the midline of the placement basket, and the photoelectric sensor 34 is set on the hook 33. When the position of the clamping mechanism is adjusted by the electric slide rail 23 and the motor 18, when the photoelectric sensor 34 moves to the top of the light strip, the movement is stopped, and the signal is transmitted to the control program. The control program controls the winder in the winding box 21, and drives the wire rope 22 to move downward to the position of the placement basket through the winder, and then clamps the placement basket, and the hook 33 coincides with the midline of the placement basket to ensure the stability of the transfer.

[0032] like Figure 2 As shown, pressure sensors 35 are fixedly connected to the inner side walls of the hooks 33 ; the pressure sensors 35 are electrically connected to the electric push rods 365 .

[0033] When the pressure sensor 35 provided by the present invention is in use, it drives the hook 33 to move inward to clamp the placement basket. When the placement basket contacts the pressure sensor 35, the signal is transmitted to the control system through the pressure sensor 35. The control system controls the electric push rod 365 to be closed, so that the hook 33 stops moving to prevent the placement basket from being transferred safely when the movement is not in place. If the movement is too close, the placement basket and the hook 33 may be damaged.

[0034] like Figure 4 As shown, two limit blocks 366 are fixedly connected to the top of the transverse plate 3 , and a sliding opening 367 is formed on the second rack 364 , and the limit blocks 366 slide in the sliding opening 367 .

[0035] When the limiting block 366 provided by the present invention is in use, the second rack 364 slides on the limiting block 366 through the sliding opening 367 during the movement of the second rack 364, and the limiting block 366 limits the second rack 364 in the horizontal direction.

[0036] Working principle: by setting a lighting strip on the midline of the basket, when adjusting the clamping mechanism, under the control of the photoelectric sensor 34, the clamping mechanism is moved to the top of the basket, stops moving, and transmits a signal to the control program, the control program controls the winder in the winding box 21, drives the wire rope 22 to move downward to the position where the basket is placed, and then turns on the electric push rod 365, drives the second rack 364 to move through the output end of the electric push rod 365, drives the driving wheel 363 to rotate through the second rack 364, drives the connecting rod 362 to rotate through the driving wheel 363, drives the driven wheel 362 to rotate through the connecting rod 362, and drives the two driven wheels 36 to rotate through the driven wheel 36 The first rack 361 on the side moves inward at the same time, and the sliding frame 32 is driven to move inward at the same time by the first rack 361, and the hook 33 is driven to move inward at the same time by the sliding frame 32, until the hook 33 clamps the placement basket, thereby realizing the functions of automatic centering and automatic clamping, and achieving the effect of rapid transportation; in the process of driving the hook 33 to move inward to clamp the placement basket, when the placement basket contacts the pressure sensor 35, the pressure sensor 35 transmits a signal to the control system, and the control system controls the electric push rod 365 to be closed, so that the hook 33 stops moving, to prevent the placement basket from being transferred safely when the movement is not in place, and the placement basket and the hook 33 may be damaged when the movement is too close; During the transfer process, the clamping mechanism drives one end of the first auxiliary rope 42 and the second auxiliary rope 45 to move through the cross plate 3, and the other ends of the first auxiliary rope 42 and the second auxiliary rope 45 are respectively kept tight by the first counterweight block 41 and the second counterweight block 44, so as to prevent the clamping mechanism from shaking; when the placement basket is not hung, it may shake due to wind force and shaking of the cantilever 2. At this time, the first counterweight block 41 and the second counterweight block 44 slide on the first slide rail 4 and the second slide rail 43 respectively with the cross plate 3, and will not shake; after the placement basket is hung, the possibility of shaking is reduced with the cooperation of the placement basket's own gravity, thereby completing the transfer; By turning on the motor 18, the second gear 17 is driven to rotate through the output shaft of the motor 18, the first gear 16 is driven to rotate through the second gear 17, the support column 11 is driven to rotate through the first gear 16, and the cantilever 2, the clamping mechanism and the placement basket are driven to rotate through the support column 11, thereby transferring the placement basket to different directions; by turning on the cylinder 14, the output end of the cylinder 14 drives the cantilever 2 to rotate through the second mounting frame 15, thereby expanding the space for the cantilever 2 to rotate up and down, and expanding the upper and lower spatial position of the transfer.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A mechanical lifting engineering machinery transfer device, comprising: Moving the vehicle body (1); Rotating a support column (11) connected to the mobile vehicle body (1); Rotating a cantilever (2) connected to the top of a support column (11); A clamping mechanism disposed below the cantilever (2); Anti-sway components provided on both sides of the clamping mechanism; The invention is characterized in that: the clamping mechanism comprises two hooks (33) and a sliding frame (32); the bottom of the cantilever (2) is fixedly connected to an electric slide rail (23); a winding box (21) is slidably connected to the electric slide rail (23); the lower part of the winding box (21) is connected to the horizontal plate (3) through two steel wire ropes (22); a connecting rod (362) is rotatably connected to the horizontal plate (3), the bottom end of the connecting rod (362) is fixedly connected to a driven wheel (36), and both sides of the driven wheel (36) are provided with a first rack ( 361), the first racks (361) are meshed with the driven wheels (36); the two first racks (361) are symmetrical about the center of the driven wheels (36); one end of the two driven wheels (36) is fixedly connected to a sliding frame (32); the bottom of the cross plate (3) is fixedly connected to two guide rails (31), and both ends of the sliding frame (32) slide on the guide rails (31); the hooks (33) are respectively fixedly connected to the bottoms of the two sliding frames (32); and a driving mechanism is provided at the top of the connecting rod (362).

2. The mechanical lifting engineering machinery transfer device according to claim 1, characterized in that: The driving mechanism comprises a driving wheel (363) fixedly connected to the top of the connecting rod (362); an electric push rod (365) is fixedly connected to the top of the transverse plate (3); an output end of the electric push rod (365) is fixedly connected to a second rack (364); and the second rack (364) is meshed with the driving wheel (363).

3. The mechanical lifting engineering machinery transfer device according to claim 2, characterized in that: The anti-sway assembly comprises a first auxiliary rope (42), a second auxiliary rope (45), a first counterweight (41) and a second counterweight (44); one end of the cantilever (2) is fixedly connected to a first slide rail (4), and the support column (11) is fixedly connected to a second slide rail (43); the first counterweight (41) is slidably connected to the first slide rail (4); the two ends of the first auxiliary rope (42) are respectively fixedly connected to the first counterweight (41) and the cross plate (3); the second counterweight (44) is slidably connected to the second slide rail (43); and the two ends of the second auxiliary rope (45) are respectively fixedly connected to the second counterweight (44) and the cross plate (3).

4. The mechanical lifting engineering machinery transfer device according to claim 3, characterized in that: A first gear (16) is fixedly connected to the outer wall of the bottom end of the support column (11); a second gear (17) is rotatably connected to the mobile body (1) via a pin shaft, and the first gear (16) meshes with the second gear (17); an L-shaped plate (19) is fixedly connected to the mobile body (1), a motor (18) is fixedly connected to the bottom of the L-shaped plate (19), and an output shaft of the motor (18) is fixedly connected to the second gear (17).

5. The mechanical lifting engineering machinery transfer device according to claim 4, characterized in that: A fixing plate (12) is fixedly connected to the top of the support column (11), a first mounting frame (13) is fixedly connected to the fixing plate (12), a second mounting frame (15) is fixedly connected to the bottom of the cantilever (2), a cylinder (14) is provided between the first mounting frame (13) and the second mounting frame (15), and two ends of the cylinder (14) are rotatably connected to the first mounting frame (13) and the second mounting frame (15), respectively.

6. The mechanical lifting engineering machinery transfer device according to claim 5, characterized in that: A photoelectric sensor (34) is fixedly connected to the inner wall of the top of the hook (33), and the photoelectric sensor (34) is electrically connected to the electric slide rail (23), and the photoelectric sensor (34) is electrically connected to the motor (18).

7. The mechanical lifting engineering machinery transfer device according to claim 6, characterized in that: The inner side walls of the hooks (33) are all fixedly connected with pressure sensors (35); the pressure sensors (35) are all electrically connected to the electric push rods (365).

8. The mechanical lifting engineering machinery transfer device according to claim 7, characterized in that: Two limit blocks (366) are fixedly connected to the top of the transverse plate (3), and a sliding opening (367) is provided on the second rack (364), and the limit blocks (366) slide in the sliding opening (367).

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