Special hoisting equipment with adjustable mass center

Abstract

The invention discloses special hoisting equipment with the adjustable mass center, and relates to the technical field of special hoisting. The special hoisting equipment comprises a bottom plate, a bottom shell is fixed to the bottom surface of the bottom plate, a sliding groove is formed in the middle of the top surface of the bottom plate, balance sensors are fixed to the two sides of the top surface of the bottom plate, and a U-shaped long frame is fixed to the bottom end in the bottom shell; a screw penetrates through the inner wall of the U-shaped long frame and is rotationally installed on the inner wall of the U-shaped long frame, a servo motor is fixed to the bottom end of the interior of the bottom shell and located on the left side of the U-shaped long frame, the right side of a rotating shaft of the servo motor is fixedly connected with the left end of the screw, a sliding block is slidably installed on the outer wall of the screw, and the inner wall of the sliding block is meshed with the inner wall of a spiral groove of the screw. The material box is clamped by the rubber plate to move left and right in a reciprocating mode, the gravity center of the material box is kept balanced on the bottom plate, and therefore the situation that materials in the material box shake and are damaged due to the fact that the gravity center of the material box is unstable on the bottom plate is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of special hoisting, in particular to a special hoisting device with adjustable center of mass. Background Art

[0002] The main purpose of special lifting equipment is to lift material boxes for transportation and loading. Its function of automatically adjusting the center of mass position ensures the stability and safety of the material box lifting process and greatly improves the efficiency of material box loading.

[0003] The patent with publication number CN113651234B discloses a special lifting equipment with adjustable center of mass, which includes a lifting beam assembly, a lifting ring assembly and a center of mass adjustment assembly. The equipment has two lifting ring assemblies. The motor reduction device drives the movable screw to rotate, and the lateral movement of the movable nut is realized according to the transmission of the screw and the nut, thereby realizing the automatic adjustment of the distance between the lifting ring assemblies. Three missile clamps are installed on the lifting ring, and the angle between each clamp is 60° to ensure the stability of the loaded missiles. Different types of missile clamps can be replaced to adapt to the diameters of different types of missiles, thereby realizing the versatility of the lifting equipment. The hydraulic system can be adjusted to adjust the lifting point position by pushing the lifting sleeve to move, thereby realizing the automatic adjustment of the center of mass position and ensuring the stability of the lifting. The invention can be applied to various types of missile lifting work, is easy to operate, and has high efficiency.

[0004] However, the current special lifting equipment with adjustable center of mass has the following problems: when the special lifting equipment with adjustable center of mass is in use, the material box is prone to shake in the equipment when the special lifting equipment is carrying the material box, which in turn causes the center of gravity of the material box to be unstable on the bottom plate, causing the material in the material box to shake and be damaged. Therefore, we propose a special lifting equipment with adjustable center of mass. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a special hoisting device with adjustable center of mass, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a special lifting equipment with adjustable center of mass, comprising a bottom plate, a bottom shell is fixed to the bottom surface of the bottom plate, a slide groove is opened in the middle of the top surface of the bottom plate, balance sensors are fixed on both sides of the top surface of the bottom plate, a U-shaped long frame is fixed to the bottom end of the bottom shell, a screw rod is penetrated through and rotatably installed on the inner wall of the U-shaped long frame, a servo motor is fixed to the bottom end of the bottom shell, the servo motor is located on the left side of the U-shaped long frame, the right side of the rotating shaft of the servo motor is fixedly connected to the left end of the screw rod, a slider is slidably installed on the outer wall of the screw rod, the inner wall of the slider rod is meshed with the inner wall of the spiral groove of the screw rod, the outer wall of the slider rod is in sliding contact with the inner wall of the bottom plate, and the slider rod A U-shaped frame is fixed on the top surface, and the bottom surface of the U-shaped frame is in sliding contact with the top surface of the bottom plate, and U-shaped rods are penetrated and slidably installed on the left and right sides of the U-shaped frame, and electric telescopic rods are penetrated and fixedly installed on the left and right sides of the U-shaped frame, and the telescopic ends of the two electric telescopic rods are fixedly connected to the outer walls of the two U-shaped rods, and two rubber plates are respectively fixed on the sides of the two U-shaped rods close to each other, and the slider reciprocates left and right in the spiral groove of the screw, and the slider slides back and forth left and right in the slide groove of the bottom plate, the slider drives the U-shaped frame to reciprocate left and right, the U-shaped frame drives the U-shaped rod to reciprocate left and right, and the U-shaped rod drives the rubber plate to reciprocate left and right, so that the rubber plate clamps the material box to reciprocate left and right.

[0007] According to the above technical solution, vertical rings are fixed on the four sides of the top surface of the base plate, four steel cables are fixedly installed on the inner walls of the four vertical rings, a cross bar is fixed at one end of the four steel cables away from the four vertical rings, and a hook is set in the middle of the top surface of the cross bar.

[0008] According to the above technical solution, an anti-slip groove is provided on the side where the two rubber plates are close to each other, the two rubber plates are located on both sides of the inner wall of the U-shaped frame, and the two electric telescopic rods are respectively located in the middle of the side where the two rubber plates are away from each other.

[0009] According to the above technical solution, anti-skid devices are provided at the bottom of the left and right sides of the U-shaped frame, and the anti-skid devices are used to prevent the material box from slipping during transportation. The bottom surface of the anti-skid device is provided with an anti-obstruction device, and the anti-obstruction device is used to scrape off dirt on the top surface of the bottom plate.

[0010] According to the above technical solution, ring supports are fixed to the bottom of the left and right sides of the U-shaped frame, and a return rod is fixed to the inner walls of the two ring supports. The return rod is located below the two U-shaped rods, and four inclined plates are fixed to the outer wall of the return rod. The four inclined plates are arranged in groups of two at the front and rear of the U-shaped frame, and two strip plates are fixed opposite the four inclined plates. Two rubber strips are respectively fixed in the middle of the two strip plates opposite each other, and the strip plates drive the rubber strips to move back and forth left and right, so that the rubber plates clamp the material box to move back and forth left and right, and the rubber strips on the strip plates prevent the material box from slipping.

[0011] According to the above technical solution, two semi-ring plates are fixed respectively on the side where the two ring supports are away from each other, two T-shaped plates are fixed respectively on the bottom of the side where the two semi-ring plates are away from each other, two arc-shaped spring pieces are fixed respectively on the side where the two T-shaped plates are away from each other, L-shaped plates are fixed on both sides of the top surface of the bottom plate, the two L-shaped plates are located on the side where the two balance sensors are close to each other, and the two L-shaped plates are respectively located on the outer wall movement trajectory of the two arc-shaped spring pieces, and the arc-shaped spring pieces are in contact with the L-shaped plates during the reciprocating movement of the arc-shaped spring pieces to the left and right, and under the elastic force of the arc-shaped spring pieces, the return rod will not hit the balance sensor.

[0012] According to the above technical solution, two connecting plates are respectively fixed to the bottom surfaces of the two semi-ring plates, two long rods are respectively fixed to the bottom surfaces of the two connecting plates, the outer walls of the two long rods are provided with a number of vertical ring blocks, four chamfered plates are respectively fixed to the bottom surfaces of the vertical ring blocks, the four chamfered plates are respectively located at the bottom of both sides of the U-shaped frame in groups of two, the bottom surfaces of the four chamfered plates are in sliding contact with the top surface of the bottom plate, and the chamfered plates scrape off dirt on the bottom plate during the reciprocating movement of the chamfered plates left and right.

[0013] According to the above technical solution, two horizontal bars are fixed to the top surfaces of the four chamfered plates, two groove plates are respectively fixed to the bottom surfaces of the two horizontal bars, two sponge blocks are respectively fixed to the tops of the inner walls of the two groove plates, and the outer walls of the two sponge blocks are in sliding contact with the inner walls of the slide grooves of the bottom plate. When the sponge blocks move back and forth left and right, the sponge blocks will wipe foreign objects in the slide grooves of the bottom plate.

[0014] The present invention provides a special hoisting device with adjustable center of mass. It has the following beneficial effects: (1) The present invention comprises a bottom plate, a balancing sensor, a bottom shell, a U-shaped long frame, a screw, a servo motor, a slider, a U-shaped frame, a U-shaped rod and an electric telescopic rod in combination with a rubber plate. The rubber plate clamps the material box, and the balancing sensor senses whether the bottom plate is in a balanced state. The slider reciprocates left and right in the spiral groove of the screw, and the slider slides left and right in the slide groove of the bottom plate. The slider drives the U-shaped frame to reciprocate left and right, the U-shaped frame drives the U-shaped rod to reciprocate left and right, and the U-shaped rod drives the rubber plate to reciprocate left and right, so that the rubber plate clamps the material box to reciprocate left and right, so that the center of gravity of the material box is balanced on the bottom plate, and the material in the material box is prevented from shaking and being damaged due to the unstable center of gravity of the material box on the bottom plate.

[0015] (2) The present invention arranges an anti-skid device so that the ring support, the return rod, the inclined plate and the strip plate cooperate with the rubber strip. The return rod drives the inclined plate to move back and forth, the inclined plate drives the strip plate to move back and forth, and the strip plate drives the rubber strip to move back and forth. The rubber plate clamps the material box and moves back and forth. The rubber strip on the strip plate blocks the material box from sliding off, thereby preventing the material box from sliding off in the U-shaped frame and causing a poor lifting effect of the material box.

[0016] (3) The present invention provides an anti-slip device so that the semi-ring plate, the T-shaped plate and the arc-shaped spring sheet cooperate with the L-shaped plate. When the arc-shaped spring sheet moves back and forth, the arc-shaped spring sheet and the L-shaped plate come into contact. Under the elastic force of the arc-shaped spring sheet, the return rod will not hit the balance sensor, thereby preventing the balance sensor from being easily damaged by the return rod.

[0017] (4) The present invention sets an anti-blocking device so that the connecting plate, the long rod and the vertical ring block cooperate with the chamfered plate. The vertical ring block drives the chamfered plate to move back and forth left and right. During the reciprocating movement of the chamfered plate, the chamfered plate scrapes off the dirt on the bottom plate, preventing a large amount of dirt from accumulating on the bottom plate and causing the U-shaped frame to move unsmoothly.

[0018] (5) The present invention sets an anti-blocking device so that the horizontal bar and the groove plate cooperate with the sponge block, and the groove plate drives the sponge block to move back and forth left and right. During the reciprocating movement of the sponge block, the sponge block will wipe the foreign matter in the bottom plate slide groove to prevent a large amount of foreign matter in the bottom plate slide groove from causing the U-shaped frame to adjust the center of gravity to get stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the present invention as a whole; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a cross-sectional schematic diagram of the bottom shell of the present invention; Figure 4 is a schematic diagram of the anti-slip device of the present invention; Figure 5 For the present invention Figure 4 A local enlarged schematic diagram of the middle A; Figure 6 is a schematic diagram of the anti-blocking device of the present invention; Figure 7 For the present invention Figure 6 A local enlarged schematic diagram of point B in the middle.

[0020] In the figure: 1. bottom plate; 2. balance sensor; 3. bottom shell; 4. U-shaped long frame; 5. screw; 6. servo motor; 7. slider; 8. U-shaped frame; 9. U-shaped rod; 10. electric telescopic rod; 11. rubber plate; 12. anti-slip device; 121. ring support; 122. return rod; 123. inclined plate; 124. strip plate; 125. rubber strip; 126. semi-ring plate; 127. T-shaped plate; 128. arc spring piece; 129. L-shaped plate; 13. anti-obstruction device; 131. connecting plate; 132. long rod; 133. ring vertical block; 134. chamfered plate; 135. horizontal bar; 136. groove plate; 137. sponge block; 14. vertical ring; 15. steel cable; 16. cross bar. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figure 1-Figure 7One embodiment of the present invention is: a mass center adjustable special hoisting equipment, including a bottom plate 1, a bottom shell 3 is fixed to the bottom surface of the bottom plate 1, a slide groove is opened in the middle of the top surface of the bottom plate 1, and balance sensors 2 are fixed on both sides of the top surface of the bottom plate 1, a U-shaped long frame 4 is fixed to the bottom end of the bottom shell 3, a screw 5 is penetrated and rotatably installed on the inner wall of the U-shaped long frame 4, a servo motor 6 is fixed to the bottom end of the bottom shell 3, the servo motor 6 is located on the left side of the U-shaped long frame 4, the right side of the rotating shaft of the servo motor 6 is fixedly connected to the left end of the screw 5, a slider 7 is slidably installed on the outer wall of the screw 5, and the inner wall of the slider 7 is meshed with the inner wall of the spiral groove of the screw 5 The outer wall of the slider 7 is in sliding contact with the inner wall of the bottom plate 1, a U-shaped frame 8 is fixed on the top surface of the slider 7, the bottom surface of the U-shaped frame 8 is in sliding contact with the top surface of the bottom plate 1, the left and right sides of the U-shaped frame 8 are penetrated and slidably installed with U-shaped rods 9, the left and right sides of the U-shaped frame 8 are penetrated and fixedly installed with electric telescopic rods 10, the telescopic ends of the two electric telescopic rods 10 are fixedly connected to the outer walls of the two U-shaped rods 9, two rubber plates 11 are respectively fixed on the sides of the two U-shaped rods 9 close to each other, vertical rings 14 are fixed on the four sides of the top surface of the bottom plate 1, and four steel cables 15 are respectively fixedly installed on the inner walls of the four vertical rings 14. The four steel cables 15 A cross bar 16 is fixed to one end away from the four vertical rings 14, a hook is provided in the middle of the top surface of the cross bar 16, an anti-skid groove is provided on the side where the two rubber plates 11 are close to each other, the two rubber plates 11 are located on both sides of the inner wall of the U-shaped frame 8, and the two electric telescopic rods 10 are respectively located in the middle of the side where the two rubber plates 11 are away from each other, and an anti-skid device 12 is provided at the bottom of the left and right sides of the U-shaped frame 8, and the anti-skid device 12 is used to prevent the material box from slipping during transportation, and an anti-blocking device 13 is provided on the bottom surface of the anti-skid device 12, and the anti-blocking device 13 is used to scrape off the dirt on the top surface of the bottom plate 1, and the rubber plate 11 clamps the material box The balance sensor 2 senses whether the bottom plate 1 is in a balanced state, the slider 7 reciprocates left and right in the spiral groove of the screw 5, the slider 7 slides back and forth left and right in the slide groove of the bottom plate 1, the slider 7 drives the U-shaped frame 8 to reciprocate left and right, the U-shaped frame 8 drives the U-shaped rod 9 to reciprocate left and right, the U-shaped rod 9 drives the rubber plate 11 to reciprocate left and right, so that the rubber plate 11 clamps the material box to reciprocate left and right, so that the center of gravity of the material box on the bottom plate 1 is balanced, so as to avoid the material in the material box from shaking and being damaged due to the unstable center of gravity of the material box on the bottom plate 1 when the special lifting equipment is lifting the material box.

[0023] Since the material box is easy to shake in the equipment when the special lifting equipment is carrying the material box, when using it, the operator places the material box in the U-shaped frame 8, and the operator starts the electric telescopic rod 10 in the U-shaped frame 8. The telescopic end of the electric telescopic rod 10 begins to shrink, and the telescopic end of the electric telescopic rod 10 drives the U-shaped rod 9 to move toward the middle, and the U-shaped rod 9 slides toward the middle in the U-shaped frame 8. The U-shaped rod 9 drives the rubber plate 11 to move toward the middle, and the rubber plate 11 clamps the material box. At the same time, the operator hangs the hook of the crane on the hook of the cross bar 16, and the crane pulls up the cross bar 16, the cross bar 16 pulls up the steel cable 15, the steel cable 15 pulls up the vertical ring 14, the vertical ring 14 pulls up the bottom plate 1, and the bottom plate 1 pulls up the U-shaped frame 8. At the same time, the U-shaped frame 8 pulls up the bottom shell 3, and the balance sensor 2 will sense whether the bottom plate 1 is in a balanced state. When the center of gravity of the material box changes during the lifting process When offset, the balance sensor 2 starts the servo motor 6, and the shaft of the servo motor 6 starts to rotate back and forth, and the shaft of the servo motor 6 drives the screw 5 to rotate back and forth, and the screw 5 rotates back and forth in the U-shaped long frame 4. The slider 7 is restricted by the slide groove of the bottom plate 1, and the slider 7 moves back and forth in the spiral groove of the screw 5. The slider 7 slides back and forth in the slide groove of the bottom plate 1, and the slider 7 drives the U-shaped frame 8 to move back and forth, and the U-shaped frame 8 drives the U-shaped rod 9 to move back and forth, and the U-shaped rod 9 drives the rubber plate 11 to move back and forth, so that the rubber plate 11 clamps the material box to move back and forth, so that the center of gravity of the material box on the bottom plate 1 is balanced, so as to prevent the material box from being unstable on the bottom plate 1 when the equipment is in use, thereby avoiding the material in the material box from shaking and being damaged due to the unstable center of gravity of the material box on the bottom plate 1 when the special lifting equipment is lifting the material box.

[0024] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, ring brackets 121 are fixed to the bottom of the left and right sides of the U-shaped frame 8, and the inner walls of the two ring brackets 121 are fixed with a retractable rod 122, which is located below the two U-shaped rods 9. Four inclined plates 123 are fixed to the outer wall of the retractable rod 122. The four inclined plates 123 are arranged in pairs in front and rear of the U-shaped frame 8. Two strip plates 124 are fixed directly opposite the four inclined plates 123. Two rubber strips 125 are fixed in the middle of the opposite sides, and the return rod 122 drives the inclined plate 123 to move back and forth left and right, the inclined plate 123 drives the strip plate 124 to move back and forth left and right, and the strip plate 124 drives the rubber strip 125 to move back and forth left and right, so that the rubber plate 11 clamps the material box to move back and forth left and right, and the rubber strip 125 on the strip plate 124 prevents the material box from slipping, so as to prevent the material box from slipping in the U-shaped frame 8 when the special lifting equipment is lifting the material box, resulting in poor lifting effect of the material box.

[0025] Two semi-ring plates 126 are fixed on the side of the two ring supports 121 away from each other, two T-shaped plates 127 are fixed on the bottom of the side of the two semi-ring plates 126 away from each other, and two arc-shaped spring pieces 128 are fixed on the side of the two T-shaped plates 127 away from each other. L-shaped plates 129 are fixed on both sides of the top surface of the bottom plate 1. The two L-shaped plates 129 are located on the side where the two balance sensors 2 are close to each other. The two L-shaped plates 129 are respectively on the outer wall movement trajectory of the two arc-shaped spring pieces 128. When the arc-shaped spring pieces 128 reciprocate left and right, the arc-shaped spring pieces 128 and the L-shaped plates 129 are in contact. Under the elastic force of the arc-shaped spring pieces 128, the return rod 122 will not hit the balance sensor 2, so as to avoid the balance sensor 2 being easily damaged by the return rod 122 when the special lifting equipment is lifting the material box.

[0026] Two connecting plates 131 are fixed to the bottom surfaces of the two semi-ring plates 126, and two long rods 132 are fixed to the bottom surfaces of the two connecting plates 131. The outer walls of the two long rods 132 are provided with a number of vertical ring blocks 133. Four chamfered plates 134 are fixed to the bottom surfaces of the vertical ring blocks 133. The four chamfered plates 134 are respectively located at the bottom of both sides of the U-shaped frame 8 in groups of two. The bottom surfaces of the four chamfered plates 134 are in sliding contact with the top surface of the bottom plate 1, and the vertical ring blocks 133 drive the chamfered plates 134 to reciprocate left and right. In the process of the reciprocating movement of the chamfered plates 134, the chamfered plates 134 scrape off the dirt on the bottom plate 1, so as to avoid a large amount of dirt accumulating on the bottom plate 1 when the special lifting equipment is lifting the material box, causing the U-shaped frame 8 to move unsmoothly.

[0027] Two horizontal bars 135 are fixed to the top surfaces of the four chamfered plates 134, and two groove plates 136 are respectively fixed to the bottom surfaces of the two horizontal bars 135. Two sponge blocks 137 are respectively fixed to the tops of the inner walls of the two groove plates 136. The outer walls of the two sponge blocks 137 are in sliding contact with the inner walls of the slide grooves of the bottom plate 1, and the groove plates 136 drive the sponge blocks 137 to reciprocate left and right. During the reciprocating movement of the sponge blocks 137, the sponge blocks 137 will wipe the foreign matter in the slide groove of the bottom plate 1, so as to avoid a large amount of foreign matter in the slide groove of the bottom plate 1 when the special lifting equipment is lifting the material box, causing the U-shaped frame 8 to get stuck in adjusting the center of gravity.

[0028] While the slider 7 drives the U-shaped frame 8 to move back and forth left and right, the U-shaped frame 8 drives the ring support 121 to move back and forth left and right, the ring support 121 drives the return rod 122 to move back and forth left and right, the return rod 122 drives the inclined plate 123 to move back and forth left and right, the inclined plate 123 drives the strip plate 124 to move back and forth left and right, the strip plate 124 drives the rubber strip 125 to move back and forth left and right, so that the rubber plate 11 clamps the material box to move back and forth left and right, and the rubber strip 125 on the strip plate 124 blocks the material box from slipping, preventing the material box from slipping in the U-shaped frame 8 when the equipment is in use, thereby avoiding the problem of poor lifting effect of the material box caused by the material box slipping in the U-shaped frame 8 when the special lifting equipment is lifting the material box.

[0029] While the U-shaped frame 8 drives the ring support 121 to reciprocate left and right, the ring support 121 drives the semi-annular plate 126 to reciprocate left and right, the semi-annular plate 126 drives the T-shaped plate 127 to reciprocate left and right, and the T-shaped plate 127 drives the arc-shaped spring piece 128 to reciprocate left and right. During the reciprocating movement of the arc-shaped spring piece 128, the arc-shaped spring piece 128 contacts the L-shaped plate 129. Under the elastic force of the arc-shaped spring piece 128, the return rod 122 will not hit the balance sensor 2, thereby preventing the balance sensor 2 from being hit by the return rod 122 when the equipment is in use, thereby avoiding the problem of the balance sensor 2 being easily damaged due to the return rod 122 hitting the material box when the special lifting equipment is lifting the material box.

[0030] While the ring support 121 drives the semi-ring plate 126 to move back and forth left and right, the semi-ring plate 126 drives the connecting plate 131 to move back and forth left and right, the connecting plate 131 drives the long rod 132 to move back and forth left and right, the long rod 132 drives the ring vertical block 133 to move back and forth left and right, and the ring vertical block 133 drives the chamfered plate 134 to move back and forth left and right. In the process of the chamfered plate 134 moving back and forth left and right, the chamfered plate 134 scrapes off the dirt on the bottom plate 1 to prevent a large amount of dirt from accumulating on the bottom plate 1 when the equipment is in use, thereby avoiding the problem of a large amount of dirt accumulating on the bottom plate 1 when the special lifting equipment is lifting the material box, causing the U-shaped frame 8 to move unsmoothly.

[0031] While the vertical ring block 133 drives the chamfered plate 134 to move back and forth left and right, the chamfered plate 134 drives the horizontal bar 135 to move back and forth left and right, the horizontal bar 135 drives the groove plate 136 to move back and forth left and right, and the groove plate 136 drives the sponge block 137 to move back and forth left and right. During the reciprocating movement of the sponge block 137, the sponge block 137 will wipe the foreign matter in the slide groove of the bottom plate 1 to prevent a large amount of foreign matter from being in the slide groove of the bottom plate 1 when the equipment is in use, thereby avoiding the problem of a large amount of foreign matter in the slide groove of the bottom plate 1 causing the U-shaped frame 8 to get stuck in adjusting the center of gravity when the special lifting equipment is lifting the material box.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mass-center adjustable special lifting equipment, comprising a base plate (1), a bottom shell (3) being fixed to the bottom surface of the base plate (1), characterized in that: A slide groove is provided in the middle of the top surface of the bottom plate (1); balance sensors (2) are fixed on both sides of the top surface of the bottom plate (1); a U-shaped long frame (4) is fixed to the bottom end of the bottom shell (3); a screw (5) is rotatably installed through the inner wall of the U-shaped long frame (4); a servo motor (6) is fixed to the bottom end of the bottom shell (3); the servo motor (6) is located on the left side of the U-shaped long frame (4); the right side of the rotating shaft of the servo motor (6) is fixedly connected to the left end of the screw (5); a slider (7) is slidably installed on the outer wall of the screw (5); the inner wall of the slider (7) is rotatably connected to the inner wall of the spiral groove of the screw (5). The walls are meshed with each other, the outer wall of the slider (7) is in sliding contact with the inner wall of the bottom plate (1), a U-shaped frame (8) is fixed to the top surface of the slider (7), the bottom surface of the U-shaped frame (8) is in sliding contact with the top surface of the bottom plate (1), the left and right sides of the U-shaped frame (8) are penetrated and slidably mounted with U-shaped rods (9), the left and right sides of the U-shaped frame (8) are penetrated and fixedly mounted with electric telescopic rods (10), the telescopic ends of the two electric telescopic rods (10) are fixedly connected to the outer walls of the two U-shaped rods (9), and two rubber plates (11) are respectively fixed to the sides of the two U-shaped rods (9) that are close to each other.

2. The center-of-mass adjustable special hoisting equipment according to claim 1, characterized in that: Vertical rings (14) are fixed to the four sides of the top surface of the bottom plate (1), and four steel cables (15) are fixedly installed on the inner walls of the four vertical rings (14) respectively. A cross bar (16) is fixed to one end of the four steel cables (15) away from the four vertical rings (14), and a hook is provided in the middle of the top surface of the cross bar (16).

3. The center-of-mass adjustable special hoisting equipment according to claim 2, characterized in that: An anti-slip groove is provided on the side where the two rubber plates (11) are close to each other, the two rubber plates (11) are located on both sides of the inner wall of the U-shaped frame (8), and the two electric telescopic rods (10) are respectively located in the middle of the side where the two rubber plates (11) are away from each other.

4. The center-of-mass adjustable special hoisting equipment according to claim 3, characterized in that: The bottom of the left and right sides of the U-shaped frame (8) are provided with anti-skid devices (12), the anti-skid devices (12) are used to prevent the material box from sliding during transportation, and the bottom surface of the anti-skid device (12) is provided with an anti-blocking device (13), the anti-blocking device (13) is used to scrape dirt off the top surface of the bottom plate (1).

5. The center-of-mass adjustable special hoisting equipment according to claim 4, characterized in that: Ring brackets (121) are fixed to the bottom of the left and right sides of the U-shaped frame (8); a reciprocating rod (122) is fixed to the inner walls of the two ring brackets (121); the reciprocating rod (122) is located below the two U-shaped rods (9); four inclined plates (123) are fixed to the outer walls of the reciprocating rod (122); the four inclined plates (123) are arranged in groups of two at the front and rear of the U-shaped frame (8); two strip plates (124) are fixed directly opposite the four inclined plates (123); and two rubber strips (125) are respectively fixed in the middle of the two strip plates (124) directly opposite each other.

6. The center-of-mass adjustable special hoisting equipment according to claim 5, characterized in that: Two semi-annular plates (126) are fixed to the sides of the two ring brackets (121) that are away from each other, two T-shaped plates (127) are fixed to the bottoms of the sides of the two semi-annular plates (126) that are away from each other, two arc-shaped spring sheets (128) are fixed to the sides of the two T-shaped plates (127) that are away from each other, and L-shaped plates (129) are fixed to both sides of the top surface of the bottom plate (1), the two L-shaped plates (129) are located on the sides of the two balance sensors (2) that are close to each other, and the two L-shaped plates (129) are located on the outer wall movement trajectories of the two arc-shaped spring sheets (128).

7. The center-of-mass adjustable special hoisting equipment according to claim 6, characterized in that: Two connecting plates (131) are fixed to the bottom surfaces of the two semi-ring plates (126), two long rods (132) are fixed to the bottom surfaces of the two connecting plates (131), the outer walls of the two long rods (132) have a plurality of ring vertical blocks (133), four chamfered plates (134) are fixed to the bottom surfaces of the plurality of ring vertical blocks (133), the four chamfered plates (134) are respectively arranged in groups of two at the bottom of both sides of the U-shaped frame (8), and the bottom surfaces of the four chamfered plates (134) are in sliding contact with the top surface of the bottom plate (1).

8. The center-of-mass adjustable special hoisting equipment according to claim 7, characterized in that: Two horizontal bars (135) are fixed to the top surfaces of the four chamfered plates (134), two groove plates (136) are fixed to the bottom surfaces of the two horizontal bars (135), two sponge blocks (137) are fixed to the tops of the inner walls of the two groove plates (136), and the outer walls of the two sponge blocks (137) are in sliding contact with the inner wall of the slide groove of the bottom plate (1).

Images