A kind of electric construction cable hoist and winding type hoisting structure

Abstract

The present invention discloses an electric construction cable hoist and a winding type lifting structure, which relate to the technical field of lifting structures, including a crawling structure, which is arranged in a moving cavity and is used to drive the rope to lift, and the crawling structure includes a special-shaped hub and a bite wheel system, a narrow gap is formed between the special-shaped hub and the bite wheel system, and a winding cavity is formed on the special-shaped hub. When the rope is lifted, the rope enters the winding cavity along the narrow gap, and the bite force of the bite wheel system and the special-shaped hub acts on the rope, gradually driving the rope to move along the narrow gap, and the special-shaped hub generates a periodic compression effect on the rope during rotation, ensuring that the rope can smoothly pass through the contact point between the special-shaped hub and the wire pressing wheel during movement, avoiding energy loss due to excessive compression, thereby improving transmission efficiency. In addition, the design of the special-shaped hub and the wire pressing wheel for periodic compression of the rope can automatically adjust the compression force according to the actual diameter of the rope.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting structures, in particular to an electric power cable hoist and a winding type lifting structure. Background Art

[0002] In modern industry, cables, as an important transmission medium, are widely used in many fields such as electricity, communications, and construction. With the development of technology and the increase in engineering needs, higher requirements are placed on the lifting, laying, and maintenance of cables. Traditional cable lifting methods mainly include manual lifting, mechanical winch lifting, etc. These methods meet the needs of cable lifting to a certain extent, but there are still problems such as low efficiency, insufficient safety, and poor adaptability.

[0003] With the development of automation and intelligent technology, cable lifting technology is also developing towards a more efficient, safe and intelligent direction. For example, advanced sensors and control systems are used to achieve precise control of cable lifting; robotics technology is used to improve the flexibility and adaptability of cable lifting; and advances in material science are used to improve the performance of the cable itself and reduce damage during the lifting process.

[0004] The existing Chinese patent with publication number CN106877243A discloses a high-voltage electric power construction cable hoist, including a cable, a machine body is provided on the cable, a cable inlet and a cable slide connected to the cable inlet are provided in the machine body, a special-shaped hub driven by a first motor is provided in the cable slide, supporting pulleys corresponding to the special-shaped hub are also provided on both sides of the cable slide, the special-shaped hub and the supporting pulley are connected to the cable accordingly, a lifting chamber is also provided at the bottom of the machine body, a reel driven by a second motor is provided in the lifting chamber, a pull rope is provided on the reel, a pull ring is connected to the end of the pull rope, and a supporting pulley corresponding to the special-shaped hub is provided in the cable slide, so as to prevent the machine body from sliding on the cable at will, and the rotation of the reel can be driven by the rotation of the second motor, so as to realize the lifting of the cable, thereby further reducing the waste of manpower caused by manual pulling of the cable.

[0005] However, the existing hoist has a complex overall structure, and the outer surface of the cable will be damaged under the pulling mode, which will affect the structure of the internal core of the cable and cause overall cable failure during use.

[0006] To this end, the present invention proposes an electric construction cable hoist and a winding type hoisting structure to solve the above problems. Summary of the invention

[0007] In view of the above problems in the prior art, the present invention is proposed.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a winding lifting structure of an electric cable hoist, comprising:

[0009] A base body, wherein the base body is formed with a moving cavity for the rope to move during lifting;

[0010] A crawling structure, which is arranged in the moving cavity and is used to drive the rope to lift. The crawling structure includes a special-shaped hub and a bite wheel system. A slit gap is formed between the special-shaped hub and the bite wheel system. A winding cavity is formed on the special-shaped hub. When the rope is lifted, the rope enters the winding cavity along the slit gap, and the bite force of the bite wheel system and the special-shaped hub acts on the rope, gradually driving the rope to move along the slit gap.

[0011] The transmission structure is used to drive the special-shaped wheel hub and drive the meshing wheel train to rotate, and the special-shaped wheel hub and the meshing wheel train are wound around the rope when they rotate.

[0012] As a preferred solution of the winding type lifting structure of the electric power cable hoist described in the present invention, wherein: the special-shaped hub includes a wheel body and a transmission shaft, the transmission shaft is arranged along the axial direction of the wheel body and is connected to the transmission structure, the wheel body is symmetrically arranged in two along the transmission shaft, and a rope cavity for the rope to be wound and moved is formed between the two wheel bodies, and winding cavities are opened on opposite sides of the wheel body.

[0013] As a preferred solution of the winding lifting structure of the electric power cable hoist described in the present invention, wherein: the transmission structure includes a power source, a driving gear, a driven gear and a hub gear, the meshing gear system includes an inlet wheel and an outlet wheel, the inlet wheel and the outlet wheel are respectively arranged on both sides of the special-shaped hub along the radial direction, and are arranged parallel to the special-shaped hub, the output shaft of the power source is coaxially fixedly connected to the driving gear, the hub gear is coaxially fixed with the special-shaped hub, the driven gear is arranged between the driving gear and the hub gear, the driven gear is respectively meshed with the driving gear and the hub gear, the power source rotates the special-shaped hub gear through the driving gear and the driven gear so that the hub gear rotates coaxially with the special-shaped hub.

[0014] As a preferred solution of the winding type lifting structure of the electric power cable hoist of the present invention, it further comprises an adjustment structure, wherein the adjustment structure comprises an axial adjustment structure and a radial adjustment structure;

[0015] The axial adjustment structure includes a truss group and an axle pushing mechanism, wherein the axle pushing mechanism is arranged in the transmission shaft and connected to the truss group, and the truss group is coaxially arranged with the special-shaped wheel hub;

[0016] The radial adjustment structure includes a pushing plate and a pushing structure. The pushing structure is arranged in the truss group. The transmission shaft is provided with a plurality of long through grooves along a circumferential array. The pushing structure passes through the pushing plate and the transmission shaft and is connected to the pushing plate. The pushing structure pushes the pushing plate to extend or retract. When the pushing plate is extended, it is used to adjust the size of the slit gap.

[0017] As a preferred solution of the winding lifting structure of the electric power cable hoist described in the present invention, wherein: the truss group includes an inner truss, a middle truss and an outer truss, and a cross plate is connected between the inner truss, the middle truss and the outer truss, and the inner truss, the middle truss and the outer truss are connected as a whole through the cross plate, and the axial pushing mechanism is inserted into the center of the inner truss to push the inner truss to move, and the inner truss acts on the middle truss and the outer truss through the cross plate to drive the middle truss and the outer truss to move synchronously.

[0018] As a preferred solution of the winding type lifting structure of the electric power cable hoist described in the present invention, wherein: the shaft pushing mechanism includes a fixed plate and a driving motor, the driving motor is fixed to the inner cavity of the transmission shaft through the fixed plate, the output end of the driving motor rotates in the inner truss to drive the inner truss to linearly displace, and the inner truss and the output shaft of the driving motor are threadedly connected.

[0019] As a preferred solution of the winding lifting structure of the electric construction cable hoist described in the present invention, wherein: the pushing structure includes a pushing system and a gear system, the pushing system is engaged in the outer truss and the middle truss, the pushing system includes a limit plate and a rack, the limit plate and the push plate are fixed at both ends of the rack, and the gear system drives the rack to move;

[0020] The gear system comprises a circular wheel body and a driving shaft, wherein the driving shaft penetrates through the outer truss and is supported by the outer truss, and the driving shaft drives the circular wheel body to mesh with the rack.

[0021] As a preferred solution of the winding lifting structure of the electric power cable hoist described in the present invention, wherein: the outer truss includes a plurality of outer connecting blocks connected as one body, the outer truss formed by the plurality of outer connecting blocks is a polygonal outer frame, the middle truss includes a plurality of middle connecting blocks connected as one body, the middle truss formed by the plurality of middle connecting blocks is a polygonal middle frame, the polygonal outer frame and the polygonal middle frame are coaxial and have the same number of sides, and the outer connecting blocks are parallel to the middle connecting blocks;

[0022] There are multiple groups of the propulsion systems, which are equal to the number of sides of the polygonal outer frame, and the racks in the propulsion systems vertically penetrate the centers of the outer connecting blocks and the middle connecting blocks.

[0023] As a preferred solution of the winding lifting structure of the electric power cable hoist of the present invention, wherein: the pushing structure further includes a plurality of universal joints, a single universal joint is arranged between two adjacent groups of the driving shafts, and the two adjacent groups of the driving shafts rotate together through the universal joints;

[0024] A plurality of the driving shafts are connected through universal joints to form a transmission chain. A transmission source is provided at the head end of the transmission chain. The transmission source acts on the universal joint through the driving shaft to drive the universal joint to rotate.

[0025] An electric construction cable hoist, comprising:

[0026] A lifting structure, the lifting structure comprising a crawling structure and a transmission structure, the transmission structure is used to drive the crawling structure, and the crawling structure is used to drive the rope to lift;

[0027] The base comprises a frame and an electrical box, a mounting area is formed in the frame, the crawling structure is arranged in the mounting area, and the electrical box is arranged on one side of the frame.

[0028] Beneficial effects of the present invention:

[0029] The present invention generates a periodic compression effect on the rope by the special-shaped hub during the rotation process, ensuring that the rope can smoothly pass through the contact point between the special-shaped hub and the crimping wheel during the movement, avoiding energy loss caused by excessive compression, thereby improving the transmission efficiency. In addition, the design of the special-shaped hub and the crimping wheel for periodic compression of the rope can automatically adjust the compression force according to the actual diameter of the rope, so that the mechanism can adapt to ropes of different diameters, increasing the flexibility of the system;

[0030] The present invention adds an adjustment structure, which includes an axial adjustment structure and a radial adjustment structure. The telescopic action of the radial adjustment structure further optimizes the gap adjustment at the narrow part of the rope channel, thereby adapting to ropes of different diameters, or adjusting the clamping force between the special-shaped hub and the outlet wheel, and the special-shaped hub and the incoming wheel. The position of the radial adjustment structure is pushed by the axial adjustment structure to change the position of the contact point between the special-shaped hub and the rope, so that the special-shaped hub positively squeezes the rope to prevent the rope from slipping due to insufficient clamping force, thereby ensuring the stability and reliability of rope transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of 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.

[0032] Figure 1 It is a schematic diagram of the overall structure of the electric construction cable hoist in the present invention;

[0033] Figure 2 It is a front view of the overall structure of the limiting member in the present invention;

[0034] Figure 3 It is a schematic diagram of the internal structure of the shield in the present invention;

[0035] Figure 4 It is a schematic diagram of the overall structure of the special-shaped wheel hub in the present invention;

[0036] Figure 5 It is a front view of the overall structure of the special-shaped wheel hub in the present invention;

[0037] Figure 6 It is a connection diagram of the special-shaped wheel hub and the wheel hub gear of the present invention;

[0038] Figure 7 It is a schematic diagram of the overall structure of the radial adjustment structure in the present invention;

[0039] Figure 8 It is a schematic diagram of the overall structure of the axial adjustment structure in the present invention;

[0040] Fig. 9 It is an axonometric diagram of the overall structure of the axial adjustment structure in the present invention;

[0041] Fig.10 It is a schematic diagram of the overall structure of the truss group in the present invention;

[0042] Fig.11 For the present invention Fig.10 A magnified view of the structure of part A;

[0043] Fig.12 It is a schematic diagram of the overall structure of the propulsion structure in the present invention.

[0044] Figure numerals: 11, electrical box; 12, shield; 21, limiter; 211, limiter column; 212, limiter plate; 22, bolt group; 31, special-shaped hub; 311, transmission shaft; 3111, long through groove; 312, wheel body; 313, groove; 32, inlet wheel; 33, outlet wheel; 41, power source; 42, driving gear; 43, driven gear; 44, hub gear; 51, axial adjustment structure; 511, truss group; 5111, outer truss; 511 11. External connection block; 5112. Middle truss; 51121. Middle connection block; 5113. Internal truss; 5114. Cross plate; 512. Axle pushing mechanism; 5121. Fixed plate; 5122. Driving motor; 52. Radial adjustment structure; 521. Pushing structure; 5211. Pushing plate; 5212. Rack; 5213. Limiting plate; 522. Gear system; 5221. Circular wheel body; 5222. Driving shaft; 523. Universal joint; 524. Transmission source. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0046] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0047] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0048] Example 1

[0049] Reference Figure 1-Figure 6 As shown, it is the first embodiment of the present invention, which provides a winding type lifting structure of an electric construction cable hoist, including a base, a crawling structure and a transmission structure;

[0050] Reference Figure 1 and Figure 2 As shown, the base is formed with a moving cavity for movement during rope lifting, and the base includes an electrical box 11 and a protective cover 12. The gap between the electrical box 11 and the protective cover 12 is configured as the moving cavity. The electrical box 11 and the protective cover 12 are fixed by fasteners, and the size of the gap between the electrical box 11 and the protective cover 12 is limited.

[0051] Specifically, the fastener includes a limit piece 21 and a bolt group 22, and the fastener is configured as a matching bolt and nut. The limit piece 21 is configured as a limit column 211 with a limit plate 212. The limit column 211 is inserted into the electrical box 11 and the protective cover 12. The two groups of limit plates 212 respectively press against the electrical box 11 and the protective cover 12 to ensure the size of the gap between the electrical box 11 and the protective cover 12. The matching bolts and nuts determine the relative positions of the electrical box 11 and the protective cover 12, so that the electrical box 11 and the protective cover 12 are integrated.

[0052] Reference Figure 2-Figure 6 As shown, the crawling structure is arranged in the moving cavity and is used to drive the rope to lift. The crawling structure includes a special-shaped hub 31 and a bite wheel system. A slit gap is formed between the special-shaped hub 31 and the bite wheel system. A winding cavity is formed on the special-shaped hub 31. When the rope is lifted, the rope enters the winding cavity along the slit gap, and the bite force of the bite wheel system and the special-shaped hub 31 acts on the rope, gradually driving the rope to move along the slit gap; a transmission structure, the transmission structure is used to drive the special-shaped hub 31 and drive the bite wheel system to rotate, and the special-shaped hub 31 and the bite wheel system rotate to wind the rope.

[0053] Among them, the special-shaped hub 31 includes a wheel body 312 and a transmission shaft 311. The transmission shaft 311 passes through the electrical box 11 and the shield 12 and forms a support to support the special-shaped hub 31. The transmission shaft 311 is arranged along the axial direction of the wheel body 312 and is connected to the transmission structure. The wheel body 312 and the transmission shaft 311 are driven to rotate synchronously through the transmission structure. The wheel body 312 is symmetrically arranged in two along the transmission shaft 311. The two wheel bodies 312 are fixed on the transmission shaft 311. A rope cavity for the rope to wrap and move is formed between the two wheel bodies 312. Grooves 313 are opened on the opposite sides of the wheel body 312 to form a winding cavity.

[0054] Among them, the engaging wheel system includes two groups of crimping wheels, which are arranged according to the incoming and outgoing directions of the rope. The two groups of crimping wheels are respectively an outgoing wheel 33 and an incoming wheel 32. The outgoing wheel 33 and the incoming wheel 32 are respectively located on both sides of the special-shaped hub 31, and the outgoing wheel 33, the incoming wheel 32 and the special-shaped hub 31 are located on the same straight line. The outgoing wheel 33 and the special-shaped hub 31, the incoming wheel 32 and the special-shaped hub 31 form two groups of engaging structures, which jointly drive the smooth movement of the rope.

[0055] Specifically, when the transmission structure drives the special-shaped hub 31 to rotate, the rope wound inside the rope cavity is engaged by the feed wheel 32 and the special-shaped hub 31, and the rope is driven along the slit gap. The engaging force of the feed wheel 32 and the special-shaped hub 31 acts on the rope to drive the rope into the rope cavity and the winding cavity, and the pressing wheel and the special-shaped hub 31 cooperate to compress and transmit the rope.

[0056] The transmitted rope enters the clamping area of ​​the outlet wheel 33 and the special-shaped hub 31, and the bite force of the outlet wheel 33 and the special-shaped hub 31 acts on the rope to drive the rope out of the rope cavity. The outlet wheel 33 and the special-shaped hub 31 cooperate to compress and transmit the rope, and the periodic compression of the rope by the outlet wheel 33 and the special-shaped hub 31 cooperates with the periodic compression of the rope by the incoming wheel 32 and the special-shaped hub 31, so that the rope is continuously engaged and driven by the two sets of bite structures.

[0057] There are multiple winding cavities on the surface of the special-shaped hub 31, and the multiple winding cavities are circumferentially evenly distributed on the surface of the wheel body 312, causing the surface of the special-shaped hub 31 to have a periodic convex structure. The convex structure on the surface of the rotating special-shaped hub 31 acts on the rope, causing the special-shaped hub 31 and the incoming wheel 32, the special-shaped hub 31 and the outgoing wheel 33 to periodically compress the rope.

[0058] Specifically, the rope is compressed periodically rather than continuously through the cooperation of the special-shaped hub 31, the outlet wheel 33 and the inlet wheel 32, so as to avoid the special-shaped hub 31 and the compression wheel continuously compressing the rope with high strength. Continuous high-pressure compression causes the rope to be subjected to excessive local pressure, which can easily cause damage or even breakage of the rope, thereby reducing its service life.

[0059] Secondly, the special-shaped hub 31, the outlet wheel 33 and the inlet wheel 32 cooperate to periodically compress the rope to better control the movement of the rope, ensuring that the rope can smoothly pass through the contact point between the special-shaped hub 31 and the wire pressing wheel during movement, avoiding energy loss due to excessive compression, thereby improving transmission efficiency.

[0060] The transmission structure is used to drive the special-shaped wheel hub 31 to rotate. The transmission structure includes a power source 41, a driving gear 42, a driven gear 43 and a hub gear 44. The meshing gear train includes an incoming wire wheel 32 and an outgoing wire wheel 33. The incoming wire wheel 32 and the outgoing wire wheel 33 are respectively arranged on both sides of the special-shaped wheel hub 31 along the radial direction, and are arranged parallel to the special-shaped wheel hub 31. The output shaft of the power source 41 is coaxially fixedly connected to the driving gear 42. The hub gear 44 is coaxially fixedly arranged with the special-shaped wheel hub 31. The driven gear 43 is arranged between the driving gear 42 and the hub gear 44. The driven gear 43 is meshed with the driving gear 42 and the hub gear 44 respectively. The power source 41 drives the hub gear 44 to rotate through the driving gear 42 and the driven gear 43 so that the hub gear 44 rotates coaxially with the special-shaped wheel hub 31.

[0061] Working principle: A winding lifting structure of an electric power cable hoist is mainly composed of a base, a crawling structure and a transmission structure. The base part is designed with a moving cavity, which is composed of an electrical box 11 and a shield 12. The crawling structure is installed inside the moving cavity, including a special-shaped hub 31, an inlet wheel 32 and an outlet wheel 33. The smooth movement and lifting of the rope are achieved through the synergistic effect of the two interlocking structures of the special-shaped hub 31 and the inlet wheel 32, and the special-shaped hub 31 and the outlet wheel 33. The special-shaped hub 31 is designed with multiple winding cavities, which are arranged equidistantly along the circumference of the hub surface to form a periodic raised structure. The raised structure on the surface of the special-shaped hub 31 cooperates with the inlet wheel 32 and the outlet wheel 33 to compress the rope in a periodic manner, which not only ensures the effective transmission of the rope, but also avoids rope damage caused by continuous high pressure. The transmission structure is responsible for providing power. Its core components include a power source 41, a driving gear 42, a driven gear 43 and a hub gear 44. Power is transmitted through the mutual engagement of the gears, and the special-shaped hub 31 is finally driven to rotate, thereby driving the rope to smoothly wind and move along a preset path, thereby achieving efficient and stable rope lifting operations.

[0062] Example 2

[0063] Reference Figure 7-Figure 12 As shown, it is a second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a winding type lifting structure of an electric cable hoist, and also includes an adjustment structure, wherein the adjustment structure includes an axial adjustment structure 51 and a radial adjustment structure 52;

[0064] The axial adjustment structure 51 includes a truss group 511 and an axle pushing mechanism 512. The axle pushing mechanism 512 is arranged in the transmission shaft 311 and connected to the truss group 511. The truss group 511 is coaxially arranged with the special-shaped hub 31.

[0065] The radial adjustment structure 52 includes a pushing plate 5211 and a pushing structure 521. The pushing structure 521 is arranged in the truss group 511. The transmission shaft 311 is provided with a plurality of long through grooves 3111 along a circumferential array. The pushing structure 521 penetrates the transmission shaft 311 and is connected to the pushing plate 5211. The pushing structure 521 pushes the pushing plate 5211 to extend or retract. When the pushing plate 5211 is extended, it is used to adjust the size of the slit gap.

[0066] The truss group 511 includes an inner truss 5113, a middle truss 5112 and an outer truss 5111, and a cross plate 5114 is connected between the inner truss 5113, the middle truss 5112 and the outer truss 5111. The inner truss 5113, the middle truss 5112 and the outer truss 5111 are connected as a whole through the cross plate 5114. The axial pushing mechanism 512 is inserted into the center of the inner truss 5113 to push the inner truss 5113 to move. The inner truss 5113 acts on the middle truss 5112 and the outer truss 5111 through the cross plate 5114 to drive the middle truss 5112 and the outer truss 5111 to move synchronously.

[0067] Among them, the shaft pushing mechanism 512 includes a fixing plate 5121 and a driving motor 5122, and the driving motor 5122 is fixed to the inner cavity of the transmission shaft 311 through the fixing plate 5121. The output end of the driving motor 5122 rotates in the inner truss 5113 to drive the inner truss 5113 to linearly displace. The inner truss 5113 acts on the middle truss 5112 and the outer truss 5111 to drive the middle truss 5112 and the outer truss 5111 to displace along the direction of the long groove. The inner truss 5113 and the output shaft of the driving motor 5122 are threadedly connected.

[0068] The pushing structure 521 includes a pushing system and a gear system 522. The pushing system is engaged in the outer truss 5111 and the middle truss 5112, and the movement direction is limited by the outer truss 5111 and the middle truss 5112. The pushing system includes a limit plate 5213 and a rack 5212. The limit plate 5213 and the pushing plate 5211 are fixed at both ends of the rack 5212. The gear system 522 drives the rack 5212 to move.

[0069] The gear system 522 includes a circular wheel body 5221 and a driving shaft 5222 . The driving shaft 5222 penetrates the outer truss 5111 and is supported by the outer truss 5111 . The driving shaft 5222 drives the circular wheel body 5221 to mesh with the rack 5212 .

[0070] The outer truss 5111 includes a plurality of outer connection blocks 51111 connected as one body, and the outer truss 5111 formed by the plurality of outer connection blocks 51111 is a polygonal outer frame. The middle truss 5112 includes a plurality of middle connection blocks 51121 connected as one body, and the middle truss 5112 formed by the plurality of middle connection blocks 51121 is a polygonal middle frame. The polygonal outer frame and the polygonal middle frame are coaxial and have the same number of sides, and the outer connection blocks 51111 and the middle connection blocks 51121 are parallel.

[0071] There are multiple groups of the propulsion systems, which are equal to the number of sides of the polygonal outer frame. The rack 5212 in the propulsion system vertically penetrates the center of the outer connecting block 51111 and the middle connecting block 51121.

[0072] The pushing structure 521 further includes a plurality of universal joints 523, wherein a single universal joint 523 is disposed between two adjacent sets of driving shafts 5222, and the two adjacent sets of driving shafts 5222 rotate together through the universal joints 523;

[0073] A plurality of the driving shafts 5222 are connected via a universal joint 523 to form a transmission chain. A transmission source 524 is provided at the head end of the transmission chain. The transmission source 524 acts on the universal joint 523 via the driving shaft 5222 to drive the universal joint 523 to rotate.

[0074] Specifically, two adjacent groups of drive shafts 5222 are synchronously driven via a universal joint 523, and multiple drive shafts 5222 are connected into a transmission chain via the universal joint 523. The head end of the transmission chain is driven by a transmission source 524, and the transmission source 524 is configured as a motor.

[0075] Working principle: The axial adjustment structure 51 mainly includes a truss group 511 and an axial push mechanism 512. The truss group 511 is composed of an inner truss 5113, a middle truss 5112 and an outer truss 5111. The three trusses are connected as a whole through a cross plate 5114 to form a solid overall structure. The axial push mechanism 512 is arranged in the transmission shaft 311 and connected to the truss group 511. Through the rotational movement of the driving motor 5122, the axial push mechanism 512 will be able to push the inner truss 5113 to linearly displace, and then through the action of the cross plate 5114, the middle truss 5112 and the outer truss 5111 are driven to move linearly along the direction of the long through slot 3111 on the transmission shaft 311 synchronously, so as to achieve precise adjustment of the lateral position.

[0076] The radial adjustment structure 52 includes a push plate 5211 and a push structure 521, and the push structure 521 includes a push system and a gear system 522. The push system includes a limit plate 5213 and a rack 5212, and the limit plate 5213 and the push plate 5211 are fixed at both ends of the rack 5212. The gear system 522 includes a circular wheel body 5221 and a drive shaft 5222, and the drive shaft 5222 passes through the outer truss 5111 and is supported by the outer truss 5111. The rotation of the drive shaft 5222 drives the circular wheel body 5221 on the drive shaft 5222 to rotate, so as to drive the circular wheel body 5221 to mesh with the rack 5212, thereby driving the rack 5212 to move along the center of the outer truss 5111 and the middle truss 5112. The circular wheel body 5221 rotates in different directions to drive the push plate 5211 to extend or retract. The extended or retracted push plate 5211 can adjust the size of the slit gap to achieve precise adjustment of the radial position.

[0077] In order to ensure the synchronous movement of multiple propulsion systems, multiple sets of universal joints 523 and transmission sources 524 are designed. Two adjacent sets of drive shafts 5222 are connected and transmitted through universal joints 523. Multiple drive shafts 5222 and multiple universal joints 523 form a transmission chain, and the head end of this transmission chain is fixed to a motor. When the motor is started, all drive shafts 5222 rotate synchronously through the transmission of the transmission chain and universal joints 523, thereby driving all circular wheels 5221 on the transmission shaft 311 to rotate, and further through the engagement of the circular wheels 5221 and the rack 5212 to drive the push plate 5211 to extend or retract synchronously, so as to achieve coordinated action of the entire system.

[0078] Among them, the purpose of the radial adjustment structure 52 is to expand the demand for applicable ropes. When the diameter of the rope is small, resulting in a small compression force given to the rope by the special-shaped hub 31 and the outlet wheel 33, as well as the special-shaped hub 31 and the incoming wheel 32, the radial adjustment structure 52 drives the push plate 5211 to extend to adjust the size of the slit gap, thereby increasing the bite force given to the rope by the special-shaped hub 31 and the outlet wheel 33, as well as the special-shaped hub 31 and the incoming wheel 32, to ensure that the rope can be transmitted stably without slipping.

[0079] The purpose of the axial adjustment structure 51 is to change the contact position between the rope and the push plate 5211. For ropes of different diameters, the rope may be offset in the gap between the special-shaped hub 31 and the outlet wheel 33, and the special-shaped hub 31 and the incoming wheel 32, resulting in insufficient bite force between the special-shaped hub 31 and the outlet wheel 33, and the special-shaped hub 31 and the incoming wheel 32 on the rope. The axial adjustment structure 51 changes the position of the truss group 511 to adjust the working position of the radial adjustment structure 52, and flexibly adjusts the gap size at the narrow part of the rope channel according to actual needs, ensuring that no matter how the rope diameter changes, the appropriate clamping force can be maintained to ensure the stability and reliability of rope transmission.

[0080] In addition, in order to facilitate the installation of the radial adjustment structure 52 and the axial adjustment structure 51 in the inner cavity of the transmission shaft 311, the transmission shaft 311 is arranged in a split structure, and the transmission shaft 311 is separated along the center of the long through groove 3111. At the same time, the split transmission shaft 311 is plug-in connected to ensure that the transmission shafts 311 rotate synchronously.

[0081] An electric construction cable hoist, comprising:

[0082] A lifting structure, the lifting structure comprising a crawling structure and a transmission structure, the transmission structure is used to drive the crawling structure, and the crawling structure is used to drive the rope to lift;

[0083] The base comprises a frame and an electrical box 11. An installation area is formed in the frame, the crawling structure is arranged in the installation area, and the electrical box 11 is arranged on one side of the frame.

[0084] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and equal changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention should all fall within the scope of the patent coverage of the present invention.

[0085] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0086] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0087] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A winding lifting structure of an electric power cable hoist, characterized in that: include: A base body, wherein the base body is formed with a moving cavity for the rope to move during lifting; A crawling structure, the crawling structure is arranged in the moving cavity and is used to drive the rope to be lifted, the crawling structure comprises a special-shaped hub (31) and a bite wheel system, a slit gap is formed between the special-shaped hub (31) and the bite wheel system, a winding cavity is formed on the special-shaped hub (31), when the rope is lifted, the rope enters the winding cavity along the slit gap, and the bite force of the bite wheel system and the special-shaped hub (31) acts on the rope, gradually driving the rope to move along the slit gap; A transmission structure, the transmission structure is used to drive the special-shaped wheel hub (31) and drive the meshing wheel train to rotate, and the special-shaped wheel hub (31) and the meshing wheel train are wound around the rope when they rotate; An adjustment structure, the adjustment structure comprising an axial adjustment structure (51) and a radial adjustment structure (52); The axial adjustment structure (51) comprises a truss group (511) and an axle pushing mechanism (512); the axle pushing mechanism (512) is arranged in the transmission shaft (311) and connected to the truss group (511); the truss group (511) is coaxially arranged with the special-shaped wheel hub (31); The radial adjustment structure (52) comprises a pushing plate (5211) and a pushing structure (521); the pushing structure (521) is arranged in the truss group (511); the transmission shaft (311) is provided with a plurality of long through grooves (3111) in a circumferential array; the pushing structure (521) penetrates the transmission shaft (311) and is connected to the pushing plate (5211); the pushing structure (521) pushes the pushing plate (5211) to extend or retract; and the pushing plate (5211) is used to adjust the size of the slit gap when extended.

2. The winding lifting structure of the electric power cable hoist according to claim 1, characterized in that: The special-shaped wheel hub (31) comprises a wheel body (312) and a transmission shaft (311); the transmission shaft (311) is arranged along the axial direction of the wheel body (312) and is connected to the transmission structure; the wheel body (312) is symmetrically arranged in two along the transmission shaft (311); a rope cavity for the rope to be wound and moved is formed between the two wheel bodies (312); and winding cavities are provided on opposite sides of the wheel body (312).

3. The winding lifting structure of the electric power cable hoist as claimed in claim 2, characterized in that: The transmission structure comprises a power source (41), a driving gear (42), a driven gear (43) and a hub gear (44); the meshing gear train comprises an incoming wire wheel (32) and an outgoing wire wheel (33); the incoming wire wheel (32) and the outgoing wire wheel (33) are respectively arranged on both sides of the special-shaped hub (31) in the radial direction and are arranged parallel to the special-shaped hub (31); the output shaft of the power source (41) is coaxially fixedly connected to the driving gear (42); the hub The gear (44) is coaxially fixedly arranged with the special-shaped wheel hub (31); the driven gear (43) is arranged between the driving gear (42) and the wheel hub gear (44); the driven gear (43) is meshed with the driving gear (42) and the wheel hub gear (44) respectively; the power source (41) drives the wheel hub gear (44) to rotate through the driving gear (42) and the driven gear (43) so that the wheel hub gear (44) and the special-shaped wheel hub (31) rotate coaxially.

4. The winding type lifting structure of the electric power cable hoist as claimed in claim 3, characterized in that: The truss group (511) includes an inner truss (5113), a middle truss (5112) and an outer truss (5111); a transverse plate (5114) is connected between the inner truss (5113), the middle truss (5112) and the outer truss (5111); the inner truss (5113), the middle truss (5112) and the outer truss (5111) are connected as a whole via the transverse plate (5114); the axial pushing mechanism (512) is inserted into the center of the inner truss (5113) to push the inner truss (5113) to move; the inner truss (5113) acts on the middle truss (5112) and the outer truss (5111) via the transverse plate (5114) to drive the middle truss (5112) and the outer truss (5111) to move synchronously.

5. The winding type lifting structure of the electric power cable hoist as claimed in claim 4, characterized in that: The shaft pushing mechanism (512) comprises a fixing plate (5121) and a driving motor (5122); the driving motor (5122) is fixed to the inner cavity of the transmission shaft (311) via the fixing plate (5121); the output end of the driving motor (5122) rotates in the inner truss (5113) to drive the inner truss (5113) to linearly displace; the inner truss (5113) and the output shaft of the driving motor (5122) are threadedly connected.

6. The winding type lifting structure of the electric power cable hoist according to claim 5, characterized in that: The pushing structure (521) comprises a pushing system and a gear system (522), wherein the pushing system is engaged in the outer truss (5111) and the middle truss (5112), and the pushing system comprises a limit plate (5213) and a rack (5212), wherein the limit plate (5213) and the pushing plate (5211) are fixed at both ends of the rack (5212), and the gear system (522) drives the rack (5212) to move; The gear system (522) comprises a circular wheel body (5221) and a drive shaft (5222), wherein the drive shaft (5222) passes through the outer truss (5111) and is supported by the outer truss (5111), and the drive shaft (5222) drives the circular wheel body (5221) to mesh with the rack (5212).

7. The winding type lifting structure of the electric power cable hoist according to claim 6, characterized in that: The outer truss (5111) includes a plurality of outer connection blocks (51111) connected as one body, and the outer truss (5111) formed by the plurality of outer connection blocks (51111) is a polygonal outer frame; the middle truss (5112) includes a plurality of middle connection blocks (51121) connected as one body, and the middle truss (5112) formed by the plurality of middle connection blocks (51121) is a polygonal middle frame; the polygonal outer frame and the polygonal middle frame are coaxial and have the same number of sides; the outer connection blocks (51111) and the middle connection blocks (51121) are parallel; The number of the propulsion systems is multiple and equal to the number of sides of the polygonal outer frame, and the racks (5212) in the propulsion systems vertically penetrate the centers of the outer connecting block (51111) and the middle connecting block (51121).

8. The winding type lifting structure of the electric power cable hoist according to claim 7, characterized in that: The propulsion structure (521) further comprises a plurality of universal joints (523), wherein a single universal joint (523) is arranged between two adjacent groups of drive shafts (5222), and the two adjacent groups of drive shafts (5222) rotate together via the universal joints (523); A plurality of the driving shafts (5222) are connected via a universal joint (523) to form a transmission chain, and a transmission source (524) is provided at the head end of the transmission chain. The transmission source (524) acts on the universal joint (523) via the driving shaft (5222) to drive the universal joint (523) to rotate.

9. An electric power cable hoist, using the winding type hoisting structure of the electric power cable hoist as claimed in any one of claims 1 to 8, characterized in that: include: A lifting structure, the lifting structure comprising a crawling structure and a transmission structure, the transmission structure is used to drive the crawling structure, and the crawling structure is used to drive the rope to lift; The base comprises a frame and an electrical box (11); an installation area is formed in the frame, the crawling structure is arranged in the installation area, and the electrical box (11) is arranged on one side of the frame.

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