Power supply cable winding drum device of crane

Abstract

The invention relates to the technical field of cranes, and particularly discloses a power supply cable winding drum device of a crane. Comprising a hollow cylinder, and side discs are arranged on the two sides of the hollow cylinder; one side of the hollow cylinder is rotationally connected with one side of the side disc through a rotating bolt, an outer inclined round hole is formed in the outer side of the hollow cylinder, a cleaning assembly is rotationally connected to the inner wall of the hollow cylinder through a rotating bolt, an outer connecting rod is fixedly connected to the outer side of the side disc, and a concave connecting plate is fixedly connected to the end, away from the side disc, of the outer connecting rod. According to the power supply cable winding drum device of the crane, a plurality of outer inclined round holes are formed in the surface of the hollow cylinder, so that dust and impurities can conveniently penetrate through the outer inclined round holes, and the dust and the impurities are difficult to attach to the surface of the hollow cylinder; and damage caused by friction contact between the cable and the surface of the winding drum due to the fact that the winding drum is affected by the working environment after long-time use and a large amount of dust and impurities adhere to the surface is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, and in particular to a power supply cable drum device of a crane. Background Art

[0002] A crane is a multi-action lifting machine that uses a hook or other lifting device to hang heavy objects, vertically lift and horizontally move heavy objects within a certain range. It is also called a crane and belongs to material handling machinery. The power cable drum of the crane is a cable winding device that provides power supply, control power supply or control signal for the crane. The power supply cable can provide stable power supply and control signal for various parts of the crane, such as the lifting mechanism, running mechanism, luffing mechanism and slewing mechanism, to ensure the normal operation of the crane. The cable drum can wind and release the cable in an orderly manner to avoid problems such as cable entanglement, knotting or excessive stretching during the operation of the crane, thereby ensuring the safety and normal use of the cable. When the power supply cable is reeled up, it will be tightly wrapped around the surface of the drum. After long-term use, the drum will be easily attached with a large amount of dust and impurities due to the working environment, causing damage to the cable when it rubs against the drum surface. Therefore, we proposed a power supply cable drum device for a crane. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a power supply cable drum device for a crane, comprising: A connecting and fixing rod, both ends of which are provided with triangular side frames; A wire winding mechanism, wherein a driving motor is provided on one side of the wire winding mechanism; A flexible pressing mechanism, which is used to perform flexible pressing on the rolled power supply cable; One end of the connecting and fixing rod is fixedly connected to one side of the triangular side frame, the side of the triangular side frame close to the connecting and fixing rod is fixedly connected to one side of the winding mechanism, one side of the winding mechanism is fixedly connected to the driving shaft of the driving motor, the output end of the driving motor is fixedly connected to one side of the triangular side frame, and the outer side of the winding mechanism is fixedly connected to one side of the flexible pressing mechanism; Wherein, the winding mechanism comprises: A hollow cylinder, wherein side discs are arranged on both sides of the hollow cylinder; One side of the hollow cylinder is rotatably connected to one side of the side disc via a rotating bolt; The side disc is sleeved on the driving shaft of the driving motor and is rotatably connected to the driving shaft of the driving motor. The side of the side disc away from the hollow cylinder is fixedly connected to one side of the triangular side frame. The outer side of the side disc is fixedly connected to one side of the flexible pressing mechanism. One side of the hollow cylinder is fixedly connected to the driving shaft of the driving motor. The outer side of the hollow cylinder is provided with an outwardly inclined circular hole. By starting a plurality of outwardly inclined circular holes on the surface of the hollow cylinder, it is easy for dust and impurities to pass through and are difficult to adhere to the surface of the hollow cylinder, thereby preventing the reel from being easily attached to a large amount of dust and impurities due to the working environment after long-term use, causing damage to the cable when it is in friction contact with the surface of the reel. By setting the circular holes on the surface of the hollow cylinder to an outwardly inclined shape to expand their coverage area, the contact area between the power supply cable and the surface of the hollow cylinder is reduced, thereby preventing the surface of the hollow cylinder with a plurality of circular holes from still having a large area in friction contact with the power supply cable for a long time. The inner wall of the hollow cylinder is rotatably connected to a cleaning assembly via a rotating bolt, and the outer side of the side disc is fixedly connected to an outer connecting rod. One end of the connecting rod away from the side disc is fixedly connected with a concave connecting plate, the inner side of the concave connecting plate is fixedly connected with an electric slide rail, and the inner side of the electric slide rail is slidably connected with a built-in slider, and a built-in slider with a certain height is arranged on the outer side of the side disc so that the power supply cable passing through is always in a suspended state, so as to prevent a large amount of mud and ash impurities accumulated on the ground of the working area near the hollow cylinder from rubbing against the power supply cable when the power supply cable is wound, and the built-in slider is driven by the electric slide rail to make the power supply cable move laterally when the power supply cable is wound, so as to prevent the power supply cable from overlapping or twisting when being wound, resulting in uneven cable winding and easy damage, and a circular hole for passing the wire is opened on one side of the built-in slider; There are a plurality of the outer oblique circular holes, and the plurality of the outer oblique circular holes are distributed on the outside of the hollow cylinder, and the cleaning component is arranged at the center position of one side of the inner wall of the hollow cylinder; The outer connecting rod is arranged at a position near the top of the outer side of the side disc and is in a horizontal state, and the bottom of the built-in sliding block is slidably connected to the bottom of the inner wall of the concave connecting plate.

[0004] Furthermore, the cleaning assembly includes a long round rod, the outer side of which is fixedly connected with a square scraper, the square scraper scrapes and cleans the inner wall of the rotating hollow cylinder to prevent dust and impurities that fall into the hollow cylinder through the outer oblique circular hole from adhering to the inner wall of the hollow cylinder and being difficult to handle; a rectangular side hole is provided on one side of the square scraper, and arc-shaped scraper blades are fixedly connected on both sides of the square scraper, the arc-shaped scraper blade performs friction contact cleaning on the inner wall of the rotating hollow cylinder to prevent dust and impurities that remain on the inner wall of the hollow cylinder and fail to be scraped off by the square scraper from falling onto the power supply cable during subsequent rotation; a dust-passing circular hole is provided on the outer surface of the arc-shaped scraper blade, and by providing a plurality of dust-passing circular holes on the surface of the arc-shaped scraper blade, the cleaned dust can be easily passed through in time In order to prevent the dust and impurities scraped off by the arc scraper and the square scraper from accumulating between the square scraper and the arc scraper and being difficult to discharge, an arc brush is fixedly connected to the outer surface of the arc scraper, and as the hollow cylinder rotates, the arc brush rubs and cleans the inner wall of the outer oblique circular hole to prevent the outer oblique circular hole from gradually accumulating too much dust when used for a long time and becoming difficult to handle, gradually clogging the outer oblique circular hole and affecting the passage of dust. One end of the long round rod is rotatably connected to the inner wall of the hollow cylinder through a rotating bolt, three square scrapers are provided, and the three square scrapers are distributed on the long round rod, a plurality of dust-passing circular holes are provided, and the plurality of dust-passing circular holes are distributed on the arc scraper, a plurality of arc brushes are provided, and the plurality of arc brushes are distributed on the arc scraper.

[0005] Furthermore, the flexible pressing mechanism includes a curved connecting plate, an electric push rod is fixedly connected to the inner side of the curved connecting plate, a square pressing plate is fixedly connected to the driving shaft of the electric push rod, a square sponge pad is fixedly connected to the side of the square pressing plate away from the electric push rod, and the squeezed square sponge pad is wiped and cleaned on the surface of the wound power supply cable when it contacts the wound power supply cable rotating with the hollow reel, so as to prevent the wound power supply cable from being located near the working environment for a long time and continuously adhering to too much dust on the surface which is difficult to handle, and the square sponge pad is compressed by the square pressing plate and the wound power supply cable is flexibly pressed and pressed, so as to prevent the wound power supply cable from being loosely wound when being wound or unwound and affecting its use, and a side-opened circular groove is opened on the side of the square sponge pad close to the square pressing plate, and a circular gasket is fixedly connected to the inner wall of the side-opened circular groove, through which the square sponge pad is pressed. A circular gasket is arranged in the side circular groove to isolate the contact between the end of the return spring and the square sponge pad, so as to prevent the return spring made of hard material from being compressed so that the part in contact with the power supply cable becomes too hard and difficult to flexibly press the power supply cable. A return spring is fixedly connected to one side of the circular gasket. The return spring that loses pressure drives the square sponge pad to expand and recover through the stretching force, so as to prevent the square sponge pad from being affected by the pushing pressure for a long time and being difficult to expand and recover to the initial state when the pressure is suddenly lost. One side of the curved connecting plate is fixedly connected to the outer side of the side disc, and a plurality of the side circular grooves are provided, and the plurality of side circular grooves are distributed on one side of the square sponge pad. The inner wall of the side circular groove is fixedly connected to the outer side of the return spring, and the end of the return spring away from the circular gasket is fixedly connected to one side of the direction pressure plate.

[0006] The present invention provides a power cable reel device for a crane, which has the following beneficial effects: 1. A power supply cable drum device for a crane has multiple outwardly inclined circular holes on the surface of the hollow cylinder to facilitate the passage of dust and impurities, which are difficult to adhere to the surface of the hollow cylinder. This prevents the drum from being easily attached to a large amount of dust and impurities due to the working environment after long-term use, which may cause damage to the cable when it is in friction contact with the drum surface. The square scraper scrapes and cleans the inner wall of the rotating hollow cylinder to prevent dust and impurities that fall into the hollow cylinder through the outwardly inclined circular holes from adhering to the inner wall of the hollow cylinder and being difficult to handle. The square pressure plate compresses the square sponge pad and flexibly presses the wound power supply cable to prevent the wound power supply cable from being loose when being wound or unwound, which affects its use.

[0007] 2. A power supply cable drum device of a crane is provided with a winding mechanism, which facilitates the passage of dust and impurities by opening a plurality of outwardly inclined circular holes on the surface of the hollow cylinder, making it difficult for dust and impurities to adhere to the surface of the hollow cylinder, thereby preventing the drum from being easily attached to a large amount of dust and impurities after being used for a long time due to the working environment, causing damage to the cable when it is in friction contact with the drum surface; the circular holes on the surface of the hollow cylinder are set to an outwardly inclined shape to expand their coverage area to reduce the contact area between the power supply cable and the surface of the hollow cylinder, thereby preventing a large area on the surface of the hollow cylinder with a plurality of circular holes from being in friction contact with the power supply cable for a long time; and a built-in slider with a certain height is set on the outer side of the side disc so that the passed power supply cable is always in a suspended state, thereby preventing a large amount of mud and ash impurities accumulated on the ground in the working area near the hollow cylinder from friction contact with the power supply cable when the power supply cable is wound.

[0008] 3. The power supply cable drum device of the crane is provided with a cleaning component, wherein the square scraper performs a scraping cleaning on the inner wall of the rotating hollow cylinder to prevent dust and impurities that fall into the hollow cylinder through the outer oblique circular hole from adhering to the inner wall of the hollow cylinder and being difficult to handle, and the arc-shaped scraper performs a friction contact cleaning on the inner wall of the rotating hollow cylinder to prevent dust and impurities that remain on the inner wall of the hollow cylinder and fail to be scraped off by the square scraper from falling onto the power supply cable during subsequent rotation, and as the hollow cylinder rotates, the arc-shaped brush performs a friction cleaning on the inner wall of the outer oblique circular hole to prevent excessive dust from gradually accumulating inside the outer oblique circular hole when used for a long time and becoming difficult to handle, gradually clogging the outer oblique circular hole and affecting the passage of dust, and providing a plurality of dust-passing circular holes on the surface of the arc-shaped scraper to facilitate the timely passage of the cleaned dust, and to prevent dust and impurities scraped off by the arc-shaped scraper and the square scraper from accumulating between the square scraper and the arc-shaped scraper and being difficult to discharge.

[0009] 4. The power supply cable drum device of the crane is provided with a flexible pressing mechanism. When the squeezed square sponge pad contacts the wound power supply cable rotating with the hollow drum, its surface is wiped and cleaned, so as to prevent the wound power supply cable from being located near the working environment for a long time and continuously adhering too much dust on the surface which is difficult to handle. The square sponge pad is compressed by a square pressure plate and the wound power supply cable is flexibly pressed to prevent the wound power supply cable from being loosened when being wound or unwound, which affects its use. A circular gasket is arranged in the side circular groove to isolate the contact between the end of the reset spring and the square sponge pad, so as to prevent the reset spring made of hard material from being compressed so that the part in contact with the power supply cable is too hard to flexibly press the power supply cable. The reset spring that loses pressure drives the square sponge pad to expand and recover together through the stretching force, so as to prevent the square sponge pad from being affected by the pushing pressure for a long time and being difficult to expand and recover to the initial state when the pressure is suddenly lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1This is a schematic diagram of the structure of the power supply cable reel device of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the power supply cable reel device of the present invention; Figure 3 It is a schematic diagram of the bottom structure of the winding mechanism of the present invention; Figure 4 It is a schematic diagram of the side section structure of the winding mechanism of the present invention; Figure 5 This is a schematic diagram of the cleaning component structure of the present invention; Figure 6 This is an enlarged structural diagram of the cleaning component A of the present invention; Figure 7 It is a schematic diagram of the structure of the flexible pressing mechanism of the present invention; Figure 8 It is a schematic diagram of the side sectional structure of the flexible pressing mechanism of the present invention.

[0011] In the figure: 1. connecting fixed rod; 2. triangular side frame; 3. winding mechanism; 4. driving motor; 5. flexible pressing mechanism; 301. hollow cylinder; 302. outer oblique circular hole; 303. side disc; 304. cleaning component; 305. outer connecting rod; 306. concave connecting plate; 307. electric slide rail; 308. built-in slider; 309. through-wire circular hole; 3041. long round rod; 3042. square scraper; 3043. rectangular side hole; 3044. arc scraper; 3045. dust-passing circular hole; 3046. arc brush; 501. curved connecting plate; 502. electric push rod; 503. square pressure plate; 504. square sponge pad; 505. side-opening circular groove; 506. circular gasket; 507. reset spring. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] See also Figure 1-Figure 6 The present invention provides a power supply cable drum device for a crane, comprising: A connecting fixing rod 1, both ends of which are provided with triangular side frames 2; A winding mechanism 3, a driving motor 4 is provided on one side of the winding mechanism 3; A flexible pressing mechanism 5, which is used to perform flexible pressing on the rolled power supply cable; One end of the connecting and fixing rod 1 is fixedly connected to one side of the triangular side frame 2, the side of the triangular side frame 2 close to the connecting and fixing rod 1 is fixedly connected to one side of the winding mechanism 3, one side of the winding mechanism 3 is fixedly connected to the driving shaft of the driving motor 4, the output end of the driving motor 4 is fixedly connected to one side of the triangular side frame 2, and the outer side of the winding mechanism 3 is fixedly connected to one side of the flexible pressing mechanism 5; Wherein, the winding mechanism 3 comprises: A hollow cylinder 301, with side discs 303 disposed on both sides of the hollow cylinder 301; One side of the hollow cylinder 301 is rotatably connected to one side of the side disc 303 via a rotating bolt; The side disc 303 is sleeved on the driving shaft of the driving motor 4 and is rotatably connected to the driving shaft of the driving motor 4. The side disc 303 away from the hollow cylinder 301 is fixedly connected to one side of the triangular side frame 2. The outer side of the side disc 303 is fixedly connected to one side of the flexible pressing mechanism 5. One side of the hollow cylinder 301 is fixedly connected to the driving shaft of the driving motor 4. An outer oblique circular hole 302 is provided on the outer side of the hollow cylinder 301, and a cleaning assembly 304 is rotatably connected to the inner wall of the hollow cylinder 301 through a rotating bolt. An outer connecting rod 305 is fixedly connected to the outer side of the side disc 303, and a concave connecting plate 306 is fixedly connected to the end of the outer connecting rod 305 away from the side disc 303. An electric slide rail 307 is fixedly connected to the inner side of the concave connecting plate 306, and a built-in slider 308 is slidably connected to the inner side of the electric slide rail 307. A through-line circular hole 309 is provided on one side of the built-in slider 308. There are multiple outer oblique circular holes 302, and the multiple outer oblique circular holes 302 are distributed outside the hollow cylinder 301, and the cleaning component 304 is set at the center of one side of the inner wall of the hollow cylinder 301; The outer connecting rod 305 is arranged on the outer side of the side disc 303 near the top and is in a horizontal state, and the bottom of the built-in slider 308 is slidably connected to the bottom of the inner wall of the concave connecting plate 306; The cleaning assembly 304 includes an elongated round rod 3041, a square scraper 3042 is fixedly connected to the outer side of the elongated round rod 3041, a rectangular side hole 3043 is provided on one side of the square scraper 3042, arc-shaped scrapers 3044 are fixedly connected to both sides of the square scraper 3042, a dust-passing circular hole 3045 is provided on the outer surface of the arc-shaped scraper 3044, an arc-shaped brush 3046 is fixedly connected to the outer surface of the arc-shaped scraper 3044, one end of the elongated round rod 3041 is rotatably connected to the inner wall of the hollow cylinder 301 through a rotating bolt, three square scrapers 3042 are provided, and the three square scrapers 3042 are distributed on the elongated round rod 3041, a plurality of dust-passing circular holes 3045 are provided, and the plurality of dust-passing circular holes 3045 are distributed on the arc-shaped scraper 3044 There are multiple arc-shaped brushes 3046, and multiple arc-shaped brushes 3046 are distributed on the arc-shaped scraper 3044. When in use, the power supply cable to be wound is fixed on the winding mechanism 3 and the driving motor 4 is started to drive the winding mechanism 3 to reel in or unwind the power supply cable. When the winding mechanism 3 drives the power supply cable to unwind and rewind, the flexible pressing mechanism 5 always performs flexible pressing on the wound power supply cable, and the power supply cable passes through the wire-passing circular hole 309 on the built-in slider 308 and is fixed on the hollow cylinder 301. The driving motor 4 is started to drive the hollow cylinder 301 to rotate. When the hollow cylinder 301 rotates, the power supply cable is reeled in or unwinded, and multiple outer oblique circular holes 302 are started on the surface of the hollow cylinder 301. It is convenient for dust and impurities to pass through and are difficult to adhere to the surface of the hollow cylinder 301. The circular hole on the surface of the hollow cylinder 301 is set to an outward oblique shape to expand its coverage area to reduce the contact area between the power supply cable and the surface of the hollow cylinder 301. A built-in slider 308 with a certain height is set on the outside of the side disk 303 so that the passing power supply cable is always in a suspended state. When the power supply cable is wound, the built-in slider 308 is driven by the electric slide rail 307 to make the power supply cable move laterally. When the hollow cylinder 301 rotates, the cleaning component 304 connected internally will not rotate and clean the inner wall of the hollow cylinder 301 and the outward oblique circular hole 302. When the hollow cylinder 301 rotates, the long round rod 3041 connected internally will not rotate. When the core cylinder 301 rotates, it moves relative to the square scraper 3042 on the outside of the long round rod 3041. When the hollow cylinder 301 rotates, the square scraper 3042 inside and the arc scraper 3044 are in contact with its inner wall at all times. The square scraper 3042 scrapes and cleans the inner wall of the rotating hollow cylinder 301. The arc scraper 3044 frictionally cleans the inner wall of the rotating hollow cylinder 301. The arc brush 3046 on the surface of the arc scraper 3044 is intermittently inserted into the outer oblique circular hole 302. As the hollow cylinder 301 rotates, the arc brush 3046 frictionally cleans the inner wall of the outer oblique circular hole 302. By opening a plurality of dust-passing circular holes 3045 on the surface of the arc scraper 3044, the cleaned dust can pass through in time.

[0014] See also Figure 1-Figure 8 The present invention provides a power cable reel device for a crane: the flexible pressing mechanism 5 includes a curved connecting plate 501, an electric push rod 502 is fixedly connected to the inner side of the curved connecting plate 501, a square pressing plate 503 is fixedly connected to the driving shaft of the electric push rod 502, a square sponge pad 504 is fixedly connected to the side of the square pressing plate 503 away from the electric push rod 502, a side of the square sponge pad 504 close to the square pressing plate 503 is provided with a side-opened circular groove 505, and a circular gasket is fixedly connected to the inner wall of the side-opened circular groove 505 506, a return spring 507 is fixedly connected to one side of the circular gasket 506, one side of the curved connecting plate 501 is fixedly connected to the outer side of the side disc 303, a plurality of side circular grooves 505 are provided, and the plurality of side circular grooves 505 are distributed on one side of the square sponge pad 504, the inner wall of the side circular groove 505 is fixedly connected to the outer side of the return spring 507, and the end of the return spring 507 away from the circular gasket 506 is fixedly connected to one side of the direction pressure plate. When in use, the hollow reel is wound on the power supply cable. The electric push rod 502 drives the square pressing plate 503 to drive the square sponge pad 504 to move toward the hollow cylinder 301. When the square sponge pad 504 moves to contact the power supply cable, the square pressing plate 503 squeezes and compresses it. When the squeezed square sponge pad 504 contacts the wound power supply cable rotating with the hollow drum, the surface of the squeezed square sponge pad 504 is wiped and cleaned. The square pressing plate 503 compresses the square sponge pad 504 and flexibly presses the wound power supply cable. When compressed, the return spring 507 in the side circular groove 505 is also compressed. A circular gasket 506 is arranged in the side circular groove 505 to isolate the end of the return spring 507 from the contact with the square sponge pad 504. When there is no need to flexibly press the power supply cable, the square pressure plate 503 is driven back by the electric push rod 502. At this time, the square pressure plate 503 gradually releases the compression on the return spring 507. The return spring 507 that loses pressure drives the square sponge pad 504 to expand and recover together through the stretching force.

[0015] When the present invention is in operation, the power supply cable to be wound is fixed on the winding mechanism 3 and the driving motor 4 is started to drive the winding mechanism 3 to reel in or unwind the power supply cable. When the winding mechanism 3 drives the power supply cable to unwind and reel in, the flexible pressing mechanism 5 always performs flexible pressing and pressing on the wound power supply cable, and the power supply cable is passed through the wire-passing circular hole 309 on the built-in slider 308 and fixed on the hollow cylinder 301. The driving motor 4 is started to drive the hollow cylinder 301 to rotate. When the hollow cylinder 301 rotates, the power supply cable is reeled in or unwinded. By starting a plurality of outer oblique circular holes 302 on the surface of the hollow cylinder 301, it is easy for dust and impurities to pass through and are difficult to adhere to the surface of the hollow cylinder 301. By The hole is set to an outwardly oblique shape to expand its coverage area to reduce the contact area between the power supply cable and the surface of the hollow cylinder 301. By setting a built-in slider 308 with a certain height on the outside of the side disc 303, the power supply cable passing through is always in a suspended state. When the power supply cable is wound, the built-in slider 308 is driven by the electric slide rail 307 to make the power supply cable move laterally. When the hollow cylinder 301 rotates, the cleaning component 304 connected to the internal rotation will not rotate and clean the inner wall of the hollow cylinder 301 and the outer oblique circular hole 302. When the hollow cylinder 301 rotates, the long round rod 3041 connected to the internal rotation will not rotate. When the hollow cylinder 301 rotates, the square scraper 3042 on the outside of the long round rod 3041 moves relative to each other. The hollow cylinder 301 rotates When the hollow cylinder 301 is rotating, the square scraper 3042 and the arc scraper 3044 are in contact with its inner wall at all times. The square scraper 3042 scrapes and cleans the inner wall of the rotating hollow cylinder 301. The arc scraper 3044 performs friction contact cleaning on the inner wall of the rotating hollow cylinder 301. The arc brush 3046 on the surface of the arc scraper 3044 is intermittently inserted into the outer oblique circular hole 302. As the hollow cylinder 301 rotates, the arc brush 3046 performs friction cleaning on the inner wall of the outer oblique circular hole 302. By opening a plurality of dust-passing circular holes 3045 on the surface of the arc scraper 3044, the cleaned dust can pass through in time. When the hollow reel is winding the power supply cable, the electric push rod 502 drives the square pressing plate 503 to drive the square sponge pad 50 4 moves toward the direction of the hollow cylinder 301, and when the square sponge pad 504 moves to contact with the power supply cable, the square pressing plate 503 squeezes and compresses it. When the squeezed square sponge pad 504 contacts the wound power supply cable rotating with the hollow drum, its surface is wiped and cleaned. The square sponge pad 504 is compressed by the square pressing plate 503 and the wound power supply cable is pressed flexibly. When the square sponge pad 504 is compressed, the return spring 507 in the side circular groove 505 is compressed together. A circular gasket 506 is arranged in the side circular groove 505 to isolate the contact between the end of the return spring 507 and the square sponge pad 504. When there is no need to flexibly press the power supply cable, the electric push rod 502 drives the square pressing plate 503 to move back.At this time, the square pressure plate 503 gradually releases the compression on the return spring 507, and the return spring 507 without pressure drives the square sponge pad 504 to expand and recover through the stretching force.

[0016] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A power cable drum device for a crane, characterized in that: include: A connecting and fixing rod (1), wherein both ends of the connecting and fixing rod (1) are provided with triangular side frames (2); A wire winding mechanism (3), wherein a driving motor (4) is provided on one side of the wire winding mechanism (3); A flexible pressing mechanism (5), the flexible pressing mechanism (5) being used to perform flexible pressing and pressing on the rolled-up power supply cable; One end of the connecting and fixing rod (1) is fixedly connected to one side of the triangular side frame (2), the side of the triangular side frame (2) close to the connecting and fixing rod (1) is fixedly connected to one side of the winding mechanism (3), one side of the winding mechanism (3) is fixedly connected to the driving shaft of the driving motor (4), the output end of the driving motor (4) is fixedly connected to one side of the triangular side frame (2), and the outer side of the winding mechanism (3) is fixedly connected to one side of the flexible pressing mechanism (5); Wherein, the wire winding mechanism (3) comprises: A hollow cylinder (301), wherein side discs (303) are provided on both sides of the hollow cylinder (301); One side of the hollow cylinder (301) is rotatably connected to one side of the side disc (303) via a rotating bolt; The side disc (303) is sleeved on the drive shaft of the drive motor (4) and is rotatably connected to the drive shaft of the drive motor (4); a side of the side disc (303) away from the hollow cylinder (301) is fixedly connected to a side of the triangular side frame (2); an outer side of the side disc (303) is fixedly connected to a side of the flexible pressing mechanism (5); and a side of the hollow cylinder (301) is fixedly connected to the drive shaft of the drive motor (4).

2. The power cable drum device for a crane according to claim 1, characterized in that: An outer oblique circular hole (302) is provided on the outer side of the hollow cylinder (301); a cleaning assembly (304) is rotatably connected to the inner wall of the hollow cylinder (301) via a rotating bolt; an outer connecting rod (305) is fixedly connected to the outer side of the side disc (303); an end of the outer connecting rod (305) away from the side disc (303) is fixedly connected to a concave connecting plate (306); an electric slide rail (307) is fixedly connected to the inner side of the concave connecting plate (306); a built-in slider (308) is slidably connected to the inner side of the electric slide rail (307); and a wire-passing circular hole (309) is provided on one side of the built-in slider (308).

3. The power cable drum device for a crane according to claim 2, characterized in that: A plurality of the outer oblique circular holes (302) are provided, and the plurality of the outer oblique circular holes (302) are distributed outside the hollow cylinder (301), and the cleaning component (304) is provided at a central position on one side of the inner wall of the hollow cylinder (301).

4. The power cable drum device for a crane according to claim 2, characterized in that: The outer connecting rod (305) is arranged at a position outside the side disc (303) close to the top and is in a horizontal state, and the bottom of the built-in sliding block (308) is slidably connected to the bottom of the inner wall of the concave connecting plate (306).

5. The power cable drum device for a crane according to claim 2, characterized in that: The cleaning assembly (304) comprises a long round rod (3041), a square scraper (3042) is fixedly connected to the outside of the long round rod (3041), a rectangular side hole (3043) is provided on one side of the square scraper (3042), arc-shaped scrapers (3044) are fixedly connected to both sides of the square scraper (3042), a dust-passing circular hole (3045) is provided on the outer surface of the arc-shaped scraper (3044), and an arc-shaped brush (3046) is fixedly connected to the outer surface of the arc-shaped scraper (3044).

6. The power cable drum device for a crane according to claim 5, characterized in that: One end of the long round rod (3041) is rotatably connected to the inner wall of the hollow cylinder (301) via a rotating bolt, and three square scrapers (3042) are provided, and the three square scrapers (3042) are distributed on the long round rod (3041).

7. The power cable drum device for a crane according to claim 5, characterized in that: A plurality of the dust-passing circular holes (3045) are provided, and the plurality of the dust-passing circular holes (3045) are distributed on the arc-shaped scraper (3044); a plurality of the arc-shaped brushes (3046) are provided, and the plurality of the arc-shaped brushes (3046) are distributed on the arc-shaped scraper (3044).

8. The power cable drum device for a crane according to claim 1, characterized in that: The flexible pressing mechanism (5) comprises a curved connecting plate (501), an electric push rod (502) is fixedly connected to the inner side of the curved connecting plate (501), a driving shaft of the electric push rod (502) is fixedly connected to a square pressing plate (503), a side of the square pressing plate (503) away from the electric push rod (502) is fixedly connected to a square sponge pad (504), a side of the square sponge pad (504) close to the square pressing plate (503) is provided with a side-opened circular groove (505), an inner wall of the side-opened circular groove (505) is fixedly connected to a circular gasket (506), and one side of the circular gasket (506) is fixedly connected to a return spring (507).

9. The power cable drum device for a crane according to claim 8, characterized in that: One side of the curved connecting plate (501) is fixedly connected to the outer side of the side circular disc (303), a plurality of side circular grooves (505) are provided, and the plurality of side circular grooves (505) are distributed on one side of the square sponge pad (504).

10. The power cable drum device for a crane according to claim 8, characterized in that: The inner wall of the side-opened circular groove (505) is fixedly connected to the outer side of the return spring (507), and one end of the return spring (507) away from the circular gasket (506) is fixedly connected to one side of the direction pressure plate.

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