CN111017764A

CN111017764A - Overhead working transfer device

Info

Publication number: CN111017764A
Application number: CN201911313870.3A
Authority: CN
Inventors: 赵全虎; 刘利钊; 周爱国; 段志国; 赵志锋; 霍维光; 贾卫军; 刘保安; 吴振奎; 张贺伟; 张兰钦; 刘辉; 刘光宝; 赵美琪
Original assignee: State Grid Corp of China SGCC; State Grid Hebei Electric Power Co Ltd; Shijiazhuang Power Supply Co of State Grid Hebei Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Hebei Electric Power Co Ltd; Shijiazhuang Power Supply Co of State Grid Hebei Electric Power Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-04-17
Anticipated expiration: 2039-12-19
Also published as: CN111017764B

Abstract

The invention discloses an overhead working transfer device, which is used for solving the defects of low efficiency and high labor intensity when tool parts are transferred between an overhead working surface and the ground in the daily installation, maintenance and overhaul work of an electric power facility at present. The lifting rope comprises a control box, a speed reducing motor, a lifting rope and a pull rope, wherein one end of a connecting body is connected with the speed reducing motor, the other end of the connecting body is connected with a machine shell, and a transmission device, a ratchet wheel device, a pulley and a manual device are arranged inside the machine shell. The clutch is installed at the left end of the speed reducing motor, and a hanging rope connected with the transferred object is fixed on the hanging rope through a quick joint on the hanging rope. The transmission device comprises a driving wheel and a pressing wheel, wherein arc-shaped grooves are formed in the circumferences of the driving wheel and the pressing wheel, and the driving wheel is installed on the main shaft and can rotate along with the main shaft. The control box can control the rotating speed and the rotating direction of the speed reducing motor. In addition, the control box is also provided with a set of wireless receiving system, and the staff can remotely control the wireless receiving system through a remote control device.

Description

Overhead working transfer device

Technical Field

The invention relates to a practical tool for high-altitude operation, in particular to a high-altitude operation transfer device.

Background

In the daily installation, maintenance and overhaul work of a transformer substation and various electric power facilities, various parts and tools need to be transmitted between operators working on the ground and high above the ground, large parts comprise a disconnecting link, a conducting rod and a composite insulator, and small parts comprise bolts, gaskets, various tools such as pliers, wrenches and the like. In many practical operations, such as the past and the present, the transmission of the tools must be carried out by binding the articles and tools to be transmitted by using transmission ropes, and then the required articles are pulled to the framework by the personnel working on the framework or by the personnel working on the ground through pulleys arranged on the framework, so that the labor intensity of the high-altitude operation is high, and the operation mode is dangerous, and the operation mode is not easy to aggravate.

Disclosure of Invention

The invention aims to provide an aerial work transfer device, which is used for solving the defect of low efficiency when tool parts are transferred between an aerial framework and the ground in the process of electric installation, maintenance and overhaul of aerial work at present.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

a high-altitude operation transfer device comprises a control box, a speed reducing motor, a connecting body, a driving wheel, a pressing wheel, a lifting rope and a pull rope; the control box is electrically connected with the speed reducing motor; a connecting body is arranged between the speed reducing motor and the shell; the driving wheel is fixedly connected with the main shaft, and an arc-shaped groove is formed in the circumference of the driving wheel; two pinch rollers with arc-shaped grooves are symmetrically arranged on the upper part of the driving wheel; the circumference of the pinch roller is in circumferential contact with the driving wheel; the pull rope is used for connecting the transferred articles and is connected with the lifting rope; the lifting rope is sequentially wound in the arc-shaped grooves on the surfaces of the driving wheel and the two pressing wheels; under the action of friction force, the pressing wheel rotates along with the rotation of the driving wheel, so that the lifting rope and the pull rope connected to the lifting rope are driven to do vertical linear motion together.

Furthermore, a quick connector is arranged between one end of the pull rope and the lifting rope, and a hanging ring with a safety device is arranged at the other end of the pull rope.

Furthermore, the emergency manual device is arranged at the lower part of the shell and comprises a driven gear, a driving gear meshed with the driven gear, a handle assembly and a manual shaft; the driven gear is fixedly connected with the main shaft; the manual shaft is arranged below the main shaft and is rotationally connected with the shell, and two ends of the manual shaft extend out of the shell; the manual shaft is provided with a step for axial positioning at one end close to the speed reducing motor, and a handle assembly is arranged at the other end; the driving gear is fixedly connected with the manual shaft; the handle assembly can drive the driving wheel to rotate when rotating.

Furthermore, the manual device is provided with a horizontal moving system, and the horizontal moving system comprises a circular retainer ring, a spring T, an unlocking handle and a tension spring; the check ring is fixed in the middle of the manual shaft, the spring T is arranged between the shell and the check ring and is positioned on the manual shaft, and the check ring, the driving gear and the handle assembly can axially move along with the manual shaft; the unlocking handle is arranged beside a step of a manual shaft outside a shell close to one side of the speed reduction motor, the inner surface of the unlocking handle is an arc-shaped surface, the end part of the unlocking handle is hinged to the shell, a cylindrical pin is arranged on each of the unlocking handle and the shell, and a tension spring used for enabling the unlocking handle and the step of the end part of the manual shaft to be tightly attached is arranged between the cylindrical pins.

Furthermore, the handle assembly comprises a crank, a fixed rod, a sliding sleeve, a spring pentagon and a rotating rod; one end of the crank is connected with the manual shaft, and the other end of the crank is connected with the fixed rod; the rotating rod is provided with an elongated slot along the axial direction, the elongated slot is communicated with the end part and the side surface of the rotating rod, and the side surface is hinged with the top of the fixed rod; the sliding sleeve is cylindrical, a rectangular block is arranged at one end close to the inner side of the sliding sleeve, two ends of the rectangular block are fixed with the inner wall of the sliding sleeve, the rectangular block transversely penetrates through an elongated slot on the rotating rod, the rectangular block is in sliding fit with the elongated slot, and the sliding sleeve is in sliding fit with the rotating rod; the sliding sleeve can axially slide along the rotating rod; and the spring E is arranged between the rectangular block of the sliding sleeve and the bottom of the long groove of the rotating rod.

Furthermore, a pressing device is arranged on the pressing wheel and comprises a wheel frame, a spring A, a supporting plate, a lock nut and an adjusting screw; the supporting plate is rectangular, two cylinders are arranged below the supporting plate, the side surface of the supporting plate is in sliding fit with the sliding block on the shell, and the supporting plate can do vertical linear motion along the sliding block; the wheel frame is provided with two cylinders, the center of each cylinder is provided with a blind hole which is used for being in sliding fit with the cylinder below the supporting plate, and a central shaft of the pressing wheel is fixed at the lower part of the wheel frame; the two springs are respectively sleeved on the two cylinders on the upper side of the wheel frame, and two ends of the springs are respectively pressed against the top surface of the wheel frame and the bottom surface of the supporting plate; the top of the shell is provided with a boss, the center of the boss is provided with a threaded hole communicated with the interior of the shell, and the adjusting screw is arranged in the threaded hole; the bottom of the adjusting screw is tightly pressed on the top surface of the supporting plate; the adjusting screw is provided with a locking nut for locking the adjusting screw.

The clutch comprises a driven disc fixedly connected with the end part of the main shaft, a driving disc in friction fit with the driven disc, a sliding rod, a nut fixed on a clutch cover, a handle, a clutch cover fixed at the end part of the speed reducing motor, a spring C, a static disc, a thrust bearing and a moving disc; the output shaft of the speed reducing motor is a hollow shaft, and a driving shaft connected with the hollow shaft through a sliding key is arranged in the hollow shaft; the output end of the driving shaft is fixedly connected with the driving disc, and the tail end of the driving shaft is fixedly connected with the driving disc; one end of the spring C is connected with the bottom surface inside the clutch cover, and the other end of the spring C is connected with the static disc; the thrust bearing is arranged between the static disc and the dynamic disc; slide bar one end has cylindrical boss, and the other end has the screw thread, cylindrical boss shoulder leans on driving disk excircle department, the handle is fixed in slide bar screwed one end, the slide bar is screw-thread fit with the nut to the slide bar can follow its axis linear motion under the effect of screw thread in the pivoted, and then its tip boss can drive the driving disk and together be linear motion.

Furthermore, a set of ratchet device is provided, and the ratchet device comprises a ratchet wheel, a pawl, a spring B, a cylindrical pin, a protective cover, a knob, an armature and a pawl cover; the ratchet wheel fixed on the main shaft is provided with a plurality of trapezoidal grooves on the circumference, the pawl is in a two-section cylindrical shape with a thin upper part and a thick lower part, the bottom of the pawl is provided with two inclined planes, one inclined plane is tightly attached to the side surface of the trapezoidal groove of the ratchet wheel, and the other inclined plane forms a certain angle with the inclined plane; the knob is fixed at the top of the pawl; the cylindrical pawl cover is fixed below a top plate of the machine shell, a blind hole is formed in the bottom of the pawl cover, a round hole for enabling the upper portion of a pawl to pass through is formed in the top of the pawl cover, and two other small holes symmetrically arranged along the center are formed in two sides of the round hole; the pawl and the pawl cover are in clearance fit; the armature is fixed in the middle of the pawl, two cylindrical pins are arranged on the bottom surface of the armature, and the cylindrical pins are in clearance fit with the small holes; the spring B is positioned between the pawl cover and the pawl; the protective cover is cylindrical, a cover plate is arranged on the top surface of the protective cover, a through hole which is in sliding fit with the pawl is formed in the center of the cover plate, the bottom of the protective cover is fixedly connected with the shell, and the armature is in sliding fit with the inner wall of the protective cover.

Furthermore, an electromagnet is arranged at the upper part in the protective cover, a through hole is formed in the center of the electromagnet, and the through hole is in clearance fit with the pawl; the electromagnet is electrically connected with the control box; the electromagnet can attract the armature after being electrified, so that the pawl connected with the armature is driven to move upwards in a straight line, and the pawl is separated from the ratchet wheel.

Furthermore, a power supply and a controller are arranged in the electric cabinet, and the controller can control the transmission speed of the lifting rope and control the electromagnet; the electric control box has local control operation element and remote control receiver connected wirelessly to the remote control emitter.

The invention has the positive effects that:

the electric device composed of the speed reducing motor, the driving wheel, the pressing wheel and the like is used for replacing a manual pull rope to transfer articles, so that the working efficiency can be greatly improved, the labor intensity of field workers is reduced, and the construction danger is reduced to a certain extent. The staff can use the control box more convenient to control the speed of article that transfer, and transfer speed can be selected according to the weight and the nature (such as fragile article, high value article) of transfer article. The use of a remote control makes it more convenient in field operations. The standby manual device can be used in an emergency on site after the electric device fails without influencing site construction. The quick connector on the pull rope can be quickly and reliably connected with and separated from the lifting rope, so that the accessible quick loading of parts and tools on a working site is realized. A plurality of pull ropes can be arranged on the same lifting rope, so that the working efficiency is further improved. Therefore, the invention solves the defects of low efficiency, high labor intensity and poor reliability when tool parts are transferred between the high-altitude framework and the ground in the daily installation, maintenance and overhaul work of the electric power facility at present.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a mechanical part of the present invention;

FIG. 3 is a schematic view of the mechanical part of the present invention with a portion of the housing removed;

FIG. 4 is a schematic view of the structure of the manual device;

FIG. 5 is a schematic structural view of the handle assembly;

FIG. 6 is a schematic diagram of the structure of the transfer device;

FIG. 7 is a schematic view of the construction of the compacting apparatus;

FIG. 8 is a schematic structural view of the ratchet mechanism;

FIG. 9 is a schematic structural view of the clutch;

FIG. 10 is a schematic view of the release handle;

in the figure, 1, a control box; 2. a clutch; 3. a reduction motor; 4. a linker; 5. lifting lugs; 6. a manual device; 7. a ratchet gear; 8. a transmission device; 9. pulling a rope; 10. balancing weight; 11. a lifting rope; 601. a driven gear; 602. a driving gear; 603. a handle assembly; 604. a manual shaft; 605. a retainer ring; 606. a spring T; 607. an unlocking handle; 608. a tension spring; 6031. a crank; 6032. fixing the rod; 6033. a sliding sleeve; 6034. e, a spring E; 6035. a rotating rod; 801. A pulley; 802. a driving wheel; 803. a pinch roller; 804. a pressing device; 8041. a wheel frame; 8042. a spring A; 8043. a support plate; 8044. locking a nut; 8045. adjusting the screw; 701. a ratchet wheel; 702. a pawl; 703. a spring B; 704. a cylindrical pin; 705. a shield; 706. a knob; 707. an electromagnet; 708. an armature; 709. a detent cover; 201. a driven plate; 202. a driving disk; 203. a slide bar; 204. a nut; 205. a handle; 206. a clutch cover; 207. a spring C; 208. a stationary disc; 209. a thrust bearing; 210. and the movable disc.

Detailed Description

The present invention will be described in further detail with reference to the attached drawings, wherein like parts are designated by like reference numerals. It should be noted that, as used in the following description, the terms "upper," "middle," "lower," "left," and "right" refer to the orientation of the referenced component within the corresponding drawing figures, and the terms "bottom" and "top," "inner," and "outer" refer to directions toward and away from, respectively, the geometric center of the particular component.

An aerial work transfer device, as shown in fig. 1, 2, 3, 6 and 7, includes a control box 1, a reduction motor 3, a lifting rope 11 and a pulling rope 9. The control box 1 is electrically connected with the gear motor 3 through a lead, one end of the connecting body 4 is connected with the gear motor 3, the other end of the connecting body is connected with the casing, and the transmission device 8, the ratchet wheel device 7, the pulley 801 and the manual device 6 are arranged in the casing. The gear motor 3 has a self-locking function, the clutch 2 is installed at the left end of the gear motor, lifting lugs 5 are arranged on the top of the casing and the gear motor 3, the tool can be hung on a field operation surface through the lifting lugs 5, and the pull rope 9 is fixed on the lifting rope 11 through a quick joint on the pull rope. The bottom of the hanging rope 9 is provided with a hanging ring with a safety device. The hanging ring is used for hanging the tool bag and the bag for containing small-volume articles. The transmission device comprises a driving wheel 802 and pressing wheels 803, arc-shaped grooves are formed in the circumferences of the driving wheel 802 and the pressing wheels 803, the driving wheel 802 is in key connection with a main shaft and can rotate along with the main shaft, the two pressing wheels 803 are installed at the lower part of a pressing device 804 and are tightly attached to the driving wheel 802 under the action of the pressing device 804, and the pressing device 804 is installed on the top surface inside the machine shell. The hoist rope 11 passes through the pulley 801, the pinch roller 803, the capstan 802, another pinch roller 803, and another pulley 801 in this order, and then the counterweight 10 is suspended below. The weight of the counterweight 10 can be adjusted according to the weight of the transferred object, and is used for tensioning the lifting rope 11 and balancing the weight of a part of the lifted object. The speed reduction motor 2 drives the main shaft and the driving wheel 802 mounted on the main shaft to rotate, and meanwhile, the two pressing wheels 803 attached to the driving wheel 802 rotate together, so that under the action of friction force, the transmission device 8 can lift or drop the pull rope 9 fixed on the lifting rope 11 when conveying the lifting rope 11. Therefore, the machine can be used for replacing manual work to transfer articles up and down, and the working efficiency can be effectively improved.

As shown in fig. 7 and 8, two pinch rollers 803 are mounted on a pinch device 804, and the pinch device 804 includes a roller frame 8041, a spring armor 8042, a support plate 8043, a lock nut 8044, and an adjusting screw 8045. Two cylinders are arranged below the rectangular support plate 8043, slide blocks are arranged at corresponding positions on the periphery of the support plate 8043 on the machine shell, and the support plate 8043 can do vertical linear motion along the slide blocks; the top surface of the wheel frame 8041 is provided with two cylinders which are symmetrically arranged, the center of each cylinder is provided with a cylindrical blind hole, the two pinch rollers 803 are respectively arranged at two ends of the lower part of the wheel frame 8041 and can freely rotate around respective central shafts, and the cylindrical blind holes of the wheel frame 8041 are in clearance fit with the cylinders at the lower part of the supporting plate 8043, so that the wheel frame 8041 can move along the axis of the cylinders; the two spring nails 8042 are arranged between the supporting plate 8043 and the wheel frame 8041 and are respectively sleeved outside the two cylinders on the upper side of the wheel frame 8041; the adjusting screw 8045 is screwed into the internal thread of the boss at the top of the machine shell, enters the interior of the machine shell and then is pressed at the top of the supporting plate 8043, and the adjusting screw 8045 is provided with a locking nut 8044 for locking the adjusting screw 8045. When the pressing force of the pressing wheel 803 needs to be adjusted, only the lock nut 8044 needs to be loosened, the adjusting screw 8045 needs to be rotated, and the length of the adjusting screw 8045 screwed into the machine shell is changed, so that the supporting plate 8043 is caused to move up and down, the compression amount of the spring armor 8042 arranged on the supporting plate 8043 is changed, the pressing force between the pressing wheel 803 and the driving wheel 802 is changed, and further the maximum friction force between the pressing wheel 803 and the lifting rope 11, namely the maximum weight difference between the transferred articles and the balance weight, can be changed. The force exerted on the lifting rope 11 by the pressing wheel 803 and the driving wheel 802 can be conveniently adjusted through the pressing device 804, and the pressing wheel 803 and the driving wheel 802 can be ensured to rotate flexibly and labor-saving while the conveying requirement is met.

As shown in fig. 1, 4, 7 and 10, the present invention has a set of manual devices 6. The driven gear 601 is mounted on the main shaft and rotates together with the main shaft, the driving gear 602 is mounted on the manual shaft 604 and meshed with the driven gear 601, the driving gear 602 can rotate together with the manual shaft 604, and the manual shaft 604 can rotate freely in two corresponding holes on the housing. The left end of the manual shaft 604 is provided with a cylindrical boss for axial positioning, the shoulder part of the boss is attached to the casing, the retainer ring 605 is fixed at the middle part of the manual shaft 604 and can rotate along with the manual shaft, a spring T606 is arranged between the retainer ring 605 and the casing, and the boss on the manual shaft 604, the retainer ring 605 and the compressed spring T606 axially position the manual shaft 604. The other end of the manual shaft 604 is provided with a handle assembly 603. An unlocking handle 607 is arranged outside the machine shell close to the boss at the shaft end of the manual shaft 604, the side surface of the unlocking handle 607 is an arc-shaped surface, and one end of the unlocking handle is hinged with the machine shell. A tension spring 608 is installed between the cylindrical pin on the unlocking handle 607 and the cylindrical pin on the housing and pulls the unlocking handle 607 tight against the surface of the manual shaft 604. When the handle assembly 603 is shaken, the driving gear 602 on the manual shaft 604 drives the driven gear 601 to rotate, so that the main shaft rotates, and when the main shaft rotates, the driving gear 802 connected with the main shaft through a key rotates together. When the handle assembly 603 is pressed to the left, the manual shaft 604, together with the driving gear 602 and the retainer ring 605 mounted thereon, moves to the left, disengaging the driving gear 602 from the driven gear 601 and increasing the compression of the spring nut 606. When the manual shaft 604 moves leftward, the boss at the end moves leftward, so that the boss is staggered with the unlocking handle 607, and at this time, the unlocking handle 607 is pulled by the tension spring 608 to make the arc-shaped surface of the unlocking handle closely contact with the thinner part of the manual shaft 604. Meanwhile, under the action of the spring T606, the left end face of the unlocking handle 607 abuts against the shoulder of the boss of the manual shaft 604, and the manual shaft 604 is axially positioned again. When the unlocking handle 607 is pulled, the end surface thereof is disengaged from the shaft shoulder at the boss of the manual shaft 604, and the manual shaft 604 and the driving gear 602 thereon move rightwards under the action of the spring nut 606, so that the driving gear 602 is re-engaged with the driven gear 601. The manual device 6 can be used in emergency when the control box 1 or the reduction motor 3 is out of order, which improves the reliability of the whole system.

As shown in fig. 3 and 9, the main shaft is provided with a ratchet device 7 which comprises a ratchet wheel 701 which is arranged on the main shaft and rotates along with the main shaft, and the ratchet wheel 701 is provided with a trapezoidal groove on the circumference. The pawl cover 709 is fixed inside the casing and has a blind hole in its lower part, and the blind hole is installed with the pawl 702 capable of sliding along its inner wall. The top of the detent cover 709 is provided with three through holes, one is positioned at the center, and the other two are symmetrically distributed along the center. The pawl 702 is a two-section cylinder with a thicker lower portion and a thinner upper portion. The end face of the bottom of the pawl 702 is provided with two planes with a certain angle, one of the planes is tightly attached to the side face of the trapezoidal groove of the ratchet wheel 701, and the other plane inclines with a certain angle. A spring B703 is arranged between the upper part of the ratchet cover 709 and the upper end surface of the lower cylinder of the pawl 702. The armature 708 is fixed to the thin rod of the pawl 702 and has two cylindrical pins on its bottom surface that are inserted into two symmetrically disposed through holes in the top of the pawl cage 704 and can move up and down. The shield 705 is cylindrical and has a cap at the top with a hole in the center. The shield 705 fits over the armature 708 and is a clearance fit with the armature 708. The lower end of the shield 705 is mounted on the top of the housing and the inner top end is mounted with an electromagnet 707. The thin rod portion of the pawl 702 is a clearance fit with the hole in the center of the pawl cage 705 and the hole in the center of the shroud 705, and a knob 706 is fixed to the top of the pawl. Due to the shape of the contact portion between the ratchet 701 and the pawl 702, the ratchet 701 can only rotate in one direction. After the knob 706 or the electromagnet 707 is pulled upward to electrically attract the armature, the pawl 706 can move upward, so that the bottom of the pawl 702 is disengaged from the trapezoidal groove on the ratchet 701, and the ratchet 701 can rotate in both directions. When the knob is pulled upwards, two cylindrical pins on the bottom surface of the armature 708 are separated from corresponding holes on the detent cover 709, for example, when the armature 708 rotates 90 degrees, the two cylindrical pins on the armature 708 are propped against the top surface of the detent cover 709, so that the bottom of the detent 702 is kept separated from the ratchet 701; for example, when the armature 708 rotates 180 degrees, the two cylindrical pins reenter the two circular holes on the pawl cage 709, so that the two flat positions at the bottom of the pawl 702 are interchanged, and the ratchet 701 can only rotate in the other direction. The housing is marked with "on", "off" and directional arrows, and the top of the knob 706 is marked with an arrow. When the manual device 6 is in use, the arrow of the knob 706 points to the mark on the housing, i.e. the current state and rotation direction of the current ratchet device 7. The ratchet gear 7 can prevent accidents caused by falling of the lifted article after the main shaft is accidentally rotated reversely when the manual device 6 is used for lifting the article.

As shown in fig. 4 and 5, the handle assembly 603 includes a crank 6031, a fixed rod 6032, a sliding sleeve 6033, a spring arm 6034, and a rotating rod 6035. One end of a crank 6031 is mounted on the end of the manual shaft 604, the bottom of a fixed rod 6032 is fixed on the other end of the crank 6031, the bottom surface of the crank 6031 is cylindrical, two side surfaces of the upper part of the crank 6031 are processed into planes, and the whole section is in a T shape. The rotating rod 6035 is cylindrical, and has an elongated slot at one end that communicates with the end face, and the slotted end is hinged to the top of the fixed rod 6032 and can rotate along the hinge axis. The sliding sleeve 6033 is cylindrical and is sleeved outside the fixed rod 6032 and the rotating rod 6035, and a rectangular block is arranged inside the sliding sleeve 6033 to radially connect the inner walls. The sliding sleeve 6033 slides along the fixed rod 6032 and the rotating rod 6035 along with the rectangular block sliding in the long groove of the rotating rod 6035. A spring 6034 is arranged between the bottom of the rotating rod 6035 and the rectangular block of the sliding sleeve 6033. After the sliding sleeve 6033 is pulled rightwards and separated from the fixed rod 6032, the sliding sleeve 6033 is pressed, and the fixed rod 6032 is driven by the sliding sleeve 6033 to rotate along the hinge shaft, so that the rotating rod 6035 and the sliding sleeve 6033 are flatly placed on the end face of the crank 6031. The handle assembly 603 allows the hand-held portion to be laid flat when the hand-operated device 6 is not in use, preventing accidental damage or injury.

As shown in fig. 2, 3 and 10, the reduction motor 3 is provided with a set of clutch 2 for transmission and separation of power between the reduction motor 3 and the main shaft. The clutch comprises a driven disc 201, a driving disc 202, a sliding rod 203, a nut 204, a handle 205, a clutch cover 206, a spring retainer 207, a static disc 208, a thrust bearing 209 and a movable disc 210. The driven disk 201 is mounted on the main shaft, the driving disk 202 is mounted on the driving shaft, and power transmission between the driven disk 201 and the driving disk 202 is performed by friction. The drive shaft is mounted in the hollow shaft of the reduction motor 3 and is keyed thereto. The driving shaft is in clearance fit with the hollow shaft of the speed reducing motor 3 and can axially slide in the driving shaft, and the left end of the driving shaft is provided with a movable disc 210. The clutch 2 is externally provided with a shell, the right end of the shell is fixed on the shell of the speed reducing motor 3, and the left end of the shell is provided with a clutch cover 206. The clutch cover 206 is provided with a nut 204, and the cylindrical sliding rod 203 is connected to the nut 204 by a thread at the left end thereof. The right end of the sliding rod 203 is provided with a boss, and the shoulder part of the boss is attached to the right end surface of the movable disc 210. The left end of the sliding rod 203 is provided with a handle 205 which can drive the sliding rod 203 to rotate, and the right end surface of the clutch cover 206 is provided with a spring jack 207. The static disc 208 is arranged at the right end of the spring C, and a thrust bearing 209 is arranged between the static disc and the dynamic disc 210. The spring C207 presses the driving disk 202 at the right end of the driving shaft against the end face of the driven disk 201 at the left end of the main shaft sequentially through the static disk 208, the thrust bearing 209, the movable disk 210 and the driving shaft. When the handle 205 is turned, the sliding rod 203 can move axially under the action of the screw thread, and the driving shaft can move horizontally along with the driven disc under the action of the spring rod 207, so that the driving disc 202 and the driven disc 201 are combined or separated. In operation, the corresponding operation can be realized only by pointing the corresponding arrows on the clutch cover 206 to the rotating handle 205 according to the on and off directions. When the electric system is normally used, the clutch 2 is required to be in a closed position; when the manual device 6 is used for operation, the clutch 2 is used for disconnecting the driving disk 202 and the driven disk 201, and the manual device 6 can be used for operation, so that the continuity of field work is guaranteed.

As shown in fig. 1, the control box 1 has a power supply and a controller therein, which control the reduction motor 3 and the electromagnet 707 through wires. The controller can control the rotating speed and direction of the speed reducing motor 3 and the action of the electromagnet. In addition, the control box 1 is also provided with a set of wireless receiving device, and the staff can remotely control the wireless receiving device through a remote control device.

The field use process of the invention is as follows: the mechanical part is firstly installed on a working site, the control box 1 is installed nearby, the control box 1, the speed reducing motor 3 and the electromagnet 707 are connected through wires, and quick connectors are arranged at two ends of the wires, so that the connection can be quickly and reliably carried out. When the electric operation is carried out, the clutch 2 is closed, the pressing device 804 is adjusted to a proper position, the driving gear 602 and the driven gear 601 of the manual device 6 are in a disengaging position, a proper counter weight 10 is installed, after a starting button is pressed, the electromagnet 707 is electrified, the ratchet 701 and the pawl 702 are disengaged, the pull rope 9 can be lifted or lowered along with the lifting rope 11, and the running speed can be adjusted according to the type, the weight and the value of the transferred articles. When the electric device fails, the clutch 2 can be placed in "minute" and the unlocking handle 607 is pulled to bring the driving gear 602 and the driven gear 601 of the manual device 6 into an engaged position. The knob in the ratchet device 7 is adjusted to the corresponding direction, the sliding sleeve 6033 is pulled up and shaken, and the sliding sleeve 6033 can be shaken for temporary emergency use. The pull rope 9 and the counterweight can be interchanged according to the actual situation in the field.

The invention has good effect in practical use. According to the reflection of some used workers, the pull ropes 9 can be used for binding and fixing various articles with different sizes and lengths or be hung and connected through hanging rings at the end parts of the pull ropes, and one lifting rope 11 can be connected with a plurality of pull ropes 9 through quick connectors, so that the working efficiency is improved. Meanwhile, due to the adoption of the electric device, the working strength can be greatly reduced, the working efficiency is improved, and the manual device 6 can also be used in an emergency after the electric device goes wrong.

However, they also address some of these deficiencies. If the manual device 6 is used to transfer a certain amount of articles with weight exceeding the weight, the manual device 6 is subjected to a larger force, and the required control force is increased, and if the weight is not increased, the manual device sometimes operates the clutch 2 to make the driving disc 202 and the driven disc 210 combine to some extent to counteract a part of the force, which causes abnormal wear of the driving disc 202 and the driven disc 210.

The present invention has achieved some success in field use, but there are some places where further improvements are needed.

Claims

1. A high altitude construction transfer device which characterized in that: the device comprises a control box (1), a speed reducing motor (3), a connecting body (4), a driving wheel (802), a pinch roller (803), a lifting rope (11) and a pull rope (9); the control box (1) is electrically connected with the speed reducing motor (3); a connecting body (4) is arranged between the speed reducing motor (3) and the shell; the driving wheel (802) is fixedly connected with the main shaft, and an arc-shaped groove is formed in the circumference of the driving wheel; two pinch rollers (803) with arc-shaped grooves on the circumference are symmetrically arranged on the upper part of the driving wheel (802); the circumference of the pinch roller (803) is in circumferential contact with the driving wheel (802); the pull rope (9) for connecting the transferred articles is connected with the lifting rope (11); the lifting rope (11) is sequentially wound in the arc-shaped grooves on the surfaces of the driving wheel (802) and the two pinch rollers (803); under the action of friction force, the pressing wheel (803) rotates along with the rotation of the driving wheel (802), so that the lifting rope (11) and the pull rope (9) connected with the lifting rope are driven to do vertical linear motion together.

2. An aerial work transfer device as defined in claim 1 wherein: a quick joint is arranged between one end of the pull rope (9) and the lifting rope (11), and a hanging ring with a safety device is arranged at the other end of the pull rope.

3. An aerial work transfer device as defined in claim 1 wherein: the emergency manual device is arranged at the lower part of the machine shell and used for emergency, and comprises a driven gear (601), a driving gear (602) meshed with the driven gear (601), a handle assembly (603) and a manual shaft (604); the driven gear (602) is fixedly connected with the main shaft; the manual shaft (604) is arranged below the main shaft and is rotatably connected with the machine shell, and two ends of the manual shaft (604) extend out of the machine shell; one end of the manual shaft (604) close to the speed reducing motor (3) is provided with a step for axial positioning, and the other end of the manual shaft is provided with a handle assembly (603); the driving gear (602) is fixedly connected with the manual shaft (604); the handle assembly (603) can drive the driving wheel (802) to rotate when rotating.

4. An aerial work transfer unit as defined in claim 3 wherein: the manual device is provided with a horizontal moving system, and the horizontal moving system comprises a circular retainer ring (605), a spring T (606), an unlocking handle (607) and a tension spring (608); the check ring (605) is fixed in the middle of the manual shaft (604), the spring T (606) is installed between the casing and the check ring (605) and is positioned on the manual shaft (604), and the check ring (605), the driving gear (602) and the handle assembly (603) can move axially along with the manual shaft (604); unblock handle (607) set up by the step of the outside manual shaft (604) of casing that is close to gear motor (3) one side, unblock handle (607) internal surface is the arcwall face, unblock handle (607) tip is articulated with the casing, respectively have a cylindric lock on unblock handle (607) and the casing, there is extension spring (608) that is used for making unblock handle (607) and manual shaft (604) tip step to paste tightly between the cylindric lock.

5. An aerial work transfer unit as defined in claim 3 wherein: the handle assembly (603) comprises a crank (6031), a fixed rod (6032), a sliding sleeve (6033), a spring pentagon (6034) and a rotating rod (6035); one end of the crank (6031) is connected with the manual shaft (604), and the other end of the crank is connected with the fixed rod (6032); the rotating rod (6035) is provided with an elongated slot along the axial direction, the elongated slot is communicated with the end part and the side surface of the rotating rod (6035), and the side surface is hinged with the top of the fixed rod (6032); the sliding sleeve (6033) is cylindrical, a rectangular block is arranged at one end close to the inner side of the sliding sleeve (6033), two ends of the rectangular block are fixed with the inner wall of the sliding sleeve (6033), the rectangular block transversely penetrates through a long groove in the rotating rod (6035), the rectangular block and the long groove are in sliding fit, and the sliding sleeve (6033) and the rotating rod (6035) are in sliding fit; the sliding sleeve (6033) can axially slide along the rotating rod (6035); the spring (6034) is arranged between the rectangular block of the sliding sleeve (6033) and the bottom of the long groove of the rotating rod (6035).

6. An aerial work transfer device as defined in claim 1 wherein: the pressing wheel (803) is provided with a pressing device (804) which comprises a wheel frame (8041), a spring armor (8042), a supporting plate (8043), a locking nut (8044) and an adjusting screw (8045); the supporting plate (8043) is rectangular, two cylinders are arranged below the supporting plate, the side surface of the supporting plate (8043) is in sliding fit with a sliding block on the machine shell, and the supporting plate (8043) can do vertical linear motion along the sliding block; the wheel frame (8041) is provided with two cylinders, the center of each cylinder is provided with a blind hole which is used for being in sliding fit with the cylinder below the supporting plate (8043), and the central shaft of the pressing wheel (803) is fixed at the lower part of the wheel frame (8041); the two spring nails (8042) are respectively sleeved on the two cylinders on the upper side of the wheel frame (8041), and the two ends of the spring nails are respectively pressed against the top surface of the wheel frame (8041) and the bottom surface of the supporting plate (8043); a boss is arranged at the top of the shell, a threaded hole communicated with the interior of the shell is formed in the center of the boss, and the adjusting screw (8045) is arranged in the threaded hole; the bottom of the adjusting screw (8045) is tightly pressed on the top surface of the supporting plate (8043); the adjusting screw (8045) is provided with a locking nut (8044) for locking the adjusting screw.

7. An aerial work transfer device as defined in claim 1 wherein: the clutch device is characterized by further comprising a clutch (2), wherein the clutch (2) comprises a driven disc (201) fixedly connected with the end portion of the spindle, a driving disc (202) in friction fit with the driven disc (201), a sliding rod (203), a nut (204) fixed on a clutch cover, a handle (205), a clutch cover (206) fixed on the end portion of the speed reducing motor (3), a spring C (207), a static disc (208), a thrust bearing (209) and a movable disc (210); an output shaft of the speed reducing motor (3) is a hollow shaft, and a driving shaft connected with the hollow shaft through a sliding key is arranged in the hollow shaft; the output end of the driving shaft is fixedly connected with the driving disc (202), and the tail end of the driving shaft is fixedly connected with the driving disc (210); one end of the spring C (207) is connected with the bottom surface inside the clutch cover (206), and the other end of the spring C is connected with the static disc (208); the thrust bearing (209) is arranged between the static disc (208) and the movable disc (210); slide bar (203) one end has cylindrical boss, and the other end has the screw thread, cylindrical boss shoulder leans on driving disk (210) excircle department, handle (205) are fixed in slide bar (203) screwed one end, slide bar (203) are screw-thread fit with nut (204) to slide bar (203) can follow its axis linear motion under the effect of screw thread in the pivoted, and then its tip boss can drive driving disk (210) and together do linear motion.

8. An aerial work transfer device as defined in claim 1 wherein: the ratchet device (7) comprises a ratchet wheel (701), a pawl (702), a spring B (703), a cylindrical pin (704), a shield (705), a knob (706), an armature (708) and a pawl cover (709); the ratchet wheel (701) fixed on the main shaft is provided with a plurality of trapezoidal grooves on the circumference, the pawl (702) is in a two-section cylindrical shape with a thin upper part and a thick lower part, the bottom of the pawl is provided with two inclined planes, one inclined plane is tightly attached to the side surface of the trapezoidal groove of the ratchet wheel (701), and the other inclined plane forms a certain angle with the inclined plane; the knob (706) is fixed on the top of the pawl (702); a cylindrical pawl cover (709) is fixed below a top plate of the machine shell, a blind hole is formed in the bottom of the pawl cover (709), a round hole for enabling the upper part of a pawl (702) to pass through is formed in the top of the pawl cover, and two other small holes which are symmetrically arranged along the center are formed in two sides of the round hole; the pawl (702) is in clearance fit with the pawl cover (709); the armature (708) is fixed in the middle of the pawl (701), two cylindrical pins (704) are arranged on the bottom surface of the armature (708), and the cylindrical pins (704) are in clearance fit with the small holes; the spring B (703) is positioned between the pawl cover (709) and the pawl (702); the protective cover (705) is cylindrical, the top surface of the protective cover is provided with a cover plate, the center of the cover plate is provided with a through hole which is used for being in sliding fit with the pawl (702), the bottom of the protective cover (705) is fixedly connected with the machine shell, and the armature (708) is in sliding fit with the inner wall of the protective cover (705).

9. An aerial work transfer device as defined in claim 8 wherein: an electromagnet (707) is arranged at the upper part in the protective cover (705), a through hole is formed in the center of the electromagnet (707), and the through hole is in clearance fit with the pawl (702); the electromagnet (707) is electrically connected with the control box (1); the electromagnet (707) can attract the armature (708) after being electrified, so that the pawl (702) connected with the armature (708) is driven to move upwards in a straight line, and the pawl (702) is separated from the ratchet wheel (701).

10. An aerial work transfer device as defined in claim 1 wherein: a power supply and a controller are arranged in the electric cabinet (1), the controller can control the transmission speed of the lifting rope (11) and control the electromagnet (707); the shell of the electric cabinet (1) is provided with a local control operation element and a set of remote control receiving device which can be wirelessly connected with a remote control transmitting device.