Background
The horizontal suspension rod can be used for a motorized suspension device for suspending lamps in studios, movie studios and theaters, and mainly drives the horizontal suspension rod with the lamps to ascend, descend or move in parallel by using an electric transmission mechanism. In the prior art, a winding drum of a boom machine only rotates and does not horizontally displace in the operation process, so that the phenomena of steel wire rope superposition and displacement are easily caused, and further danger is caused; moreover, because the defect of the existing horizontal suspender transmission structure, the horizontal suspender has large swaying property when rotating and walking horizontally, and the light distribution effect is directly influenced.
In chinese patent document CN108313909A, a self-rope-discharging winch is disclosed, which comprises a winding drum, a motor and a base, wherein the motor is connected with a speed reducer, and the winding drum is mounted on the base; the speed reducer is connected with a winding drum shaft of the winding drum and drives the winding drum to rotate; the pulley is arranged on the winding drum and moves along the axial direction of the winding drum; the rope guide pulley is arranged after a steel wire rope is discharged from the winding drum and wound around the pulley; the drum shaft drives the ball screw to rotate through the chain wheel; the pulley is arranged on a pulley bracket, the pulley bracket is assembled on the ball screw, and the pulley bracket horizontally moves through the rotation of the ball screw; the pulley is fixedly connected with a sliding block, and the sliding block is assembled on the guide rail assembly to move freely.
In the technical scheme, the guide rail assembly is not suitable for high-speed and rapid lifting of the lifting point due to the problem of the adopted guide rail assembly, and the impact resistance is poor.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a can realize that the high-speed quick lift of hoisting point, impact resistance is good from arranging rope hoist engine.
In order to solve the technical problem, the utility model adopts the technical scheme that the self-rope-discharging winch comprises a winding drum, a motor speed reducer and a base, wherein the motor speed reducer is connected with a winding drum shaft of the winding drum to drive the winding drum to rotate; the rope guiding device also comprises a rope guiding pulley, and the rope guiding pulley moves along the axial direction of the winding drum; the rope discharging pulley is arranged on the movable pulley component, and the movable pulley component freely reciprocates along a linear guide rail on the base; the linear guide rails are distributed along the axial direction of the winding drum shaft and are positioned below the winding drum.
The linear guide rails are distributed along the axial direction of the drum shaft, namely the guide rails are horizontally arranged and positioned below the drum, so that the lifting point can be quickly lifted at a high speed and has good impact resistance; by arranging the rope arranging pulley and the rope outlet pulley, the steel wire rope is discharged from the winding drum, wound around the rope arranging pulley and then is arranged (rope winding is carried out reversely) by the rope outlet pulley, and the rope outlet directions are fixed and uniform; the rope arranging pulley moves along the axial direction of the winding drum, so that the moving distance of the pulley is consistent with the lead of the winding drum, rope skipping and rope tangling are effectively avoided, and rope arranging or rope winding is orderly carried out; on the fixed unified basis of play rope direction, can realize this from arranging rope winch horizontal installation, furred ceiling installation and perpendicular installation, all can not exert an influence to play rope direction, convenient to use, wire rope homoenergetic realizes orderly winding on the reel, guarantees that each hoisting point goes up and down in step.
Preferably, the winding drum shaft drives the ball screw to rotate through a chain wheel; the movable pulley component is arranged on a pulley bracket, the pulley bracket is assembled on the ball screw, and the pulley bracket horizontally moves through the rotation of the ball screw; the pulley bracket is fixedly connected with a sliding block, and the sliding block is assembled on the linear guide rail and can freely reciprocate.
The lead of the ball screw is consistent with that of the winding drum, the winding drum shaft drives the pulley support on the ball screw to move through the chain wheel, so that the movement of the rope arranging pulley on the pulley support is synchronous with the rotation of the winding drum, and the ball screw gives power for the rope arranging pulley to move freely; matched with, the slider is furnished with and is freely removed on linear guide, and linear guide gives the direction that the rope arrangement pulley freely removed, gives the direction, makes its removal have the directionality for pulley moving direction is stable, orderly, can realize high-speed and reel rotation synchronization, and further the guarantee wire rope is put in order or the rope arrangement is orderly on the reel, and the effectual rope skipping of having avoided twines the phenomenon disorderly.
Preferably, the ball screw is provided with an external thread, the pulley bracket is provided with a guide sleeve with an internal thread, and the pulley bracket is sleeved on the ball screw; by adopting the screw rod structure, the sliding block moves more accurately.
Preferably, a conductive plate is arranged on the side surface of the winding drum and above the movable pulley assembly; the winding drum shaft is further connected with a stroke detection device.
The current-conducting plate is arranged to have the effect that once the steel wire rope is overlapped and arranged (rope is discharged), the thickness is increased, the steel wire rope can touch the current-conducting plate, and the self-rope-arranging winch can stop running; and the stroke detection device is used for detecting the length of the steel wire rope in winding and unwinding.
Preferably, the movable pulley assembly is located below the winding drum and arranged in the accommodating cavity of the base; the structure layout is compact and reasonable, and the movement is not interfered when the device is positioned in the accommodating cavity.
Preferably, the self-discharging rope winch is provided with two rope outlet wheels, namely a first rope outlet wheel and a second rope outlet wheel; the wire rope is discharged from the winding drum and wound around the rope arranging pulley, then is arranged by the first rope outlet wheel and is upwards connected with a hoisting point, and the wire rope is discharged from the winding drum and wound around the rope arranging pulley, then is arranged by the second rope outlet wheel and is downwards connected with another hoisting point.
On the basis of the fixed rope outlet direction, the diversification of the rope outlet direction is realized, and the rope can be discharged upwards or downwards.
Preferably, vertical plates are arranged at two ends of the winding drum; the rope arranging pulley is fixed on the pulley bracket through a simple support shaft.
The simple support shaft can bear the high-speed lifting of the lifting point and has good impact resistance.
Preferably, the radial section of the rope arranging pulley is perpendicular to the radial section of the winding drum, and an included angle of 10-40 degrees is formed between the radial section of the rope arranging pulley and the axial section of the winding drum.
Thus, the steel cable passing from the winding drum to the rope-winding pulley does not have large torsion or even no torsion, and it should be noted that the radial section of the rope-winding pulley, i.e. the plane where the maximum surface area of the rope-winding pulley is located, is parallel to the radial section.
Preferably, the chain wheel is fixedly connected to the vertical plate in the horizontal direction through a bolt.
The existing installation modes are all vertical installation and horizontal installation, the connection direction is changed by 90 degrees, and the installation is more convenient; the adjustment and maintenance are convenient.
Preferably, the winding drum is provided with a rope winding and unwinding groove, and the number of the rope winding and unwinding groove is the same as that of the hoisting points of the self-rope-discharging winch; the rope winding and unwinding groove is provided with a plurality of grooves for winding the steel wire rope; pulley grooves are formed in the rope arranging pulleys, and the number of the rope winding and unwinding grooves is the same as that of the rope arranging pulleys; the rope outlet wheel is provided with at least one rope outlet groove, and the number of the rope collecting and releasing grooves is the same as that of the rope outlet grooves.
One rope winding and unwinding groove corresponds to one lifting point and is provided with a plurality of grooves for winding steel wire ropes, the steel wire ropes cannot be placed in disorder or jump, the ropes are wound in order, and the rope arrangement is ordered; the number of the rope winding and unwinding grooves is the same as that of the rope arrangement pulleys, and one rope winding and unwinding groove corresponds to one rope arrangement pulley, so that disorder is avoided; the rope outlet wheel is provided with rope outlet grooves, the number of the rope winding and unwinding grooves is the same as that of the rope outlet grooves, all the steel wire ropes on the winding drum are discharged from the rope outlet wheel to be connected with the hoisting points, and the rope outlet direction is fixed and is not disordered.
Detailed Description
As shown in fig. 1-4, the self-rope-discharging winch of the embodiment includes a winding drum 1, a motor reducer 2 and a base 3, wherein the motor reducer 2 is connected to a winding drum shaft 101 of the winding drum 1 to drive the winding drum 1 to rotate; the rope guiding device also comprises a rope guiding pulley 4, and the rope guiding pulley 4 moves along the axial direction of the winding drum 1; the rope winding device is characterized by further comprising rope outlet wheels 5 and 13, a steel wire rope is discharged from the winding drum 1 and wound around the rope winding pulley 4, then rope winding is carried out through the rope outlet wheels 5 and 13, the rope winding pulley 4 is arranged on the movable pulley assembly 6, and the movable pulley assembly 6 freely reciprocates along a linear guide rail 7 on the base 3; the linear guide rails 7 are distributed along the axial direction of the winding drum shaft 101 and are positioned below the winding drum 1; bolts 17, 18 fixedly attach the sprocket 8 to the vertical plate in the horizontal direction.
The drum shaft 101 drives the ball screw 9 to rotate through the chain wheel 8; the moving pulley assembly 6 is mounted on a pulley bracket 10, the pulley bracket 10 is mounted on the ball screw 9, and the pulley bracket 10 moves horizontally by the rotation of the ball screw 9; a slider 1001 is fixedly connected to the pulley bracket 10, and the slider 1001 is fitted to the linear guide 7 to freely reciprocate.
In this embodiment, the ball screw 9 has an external thread, the pulley holder 10 is provided with a guide sleeve 1002 having an internal thread, and the pulley holder 10 is fitted over the ball screw 9.
A conductive plate 11 is arranged on the side surface of the winding drum 1 and above the movable pulley assembly 6; the spool shaft 101 is also connected with a stroke detection device 12.
The movable pulley assembly 6 is located below the winding drum 1 and is arranged in the accommodating cavity 301 of the base 3.
As shown in fig. 1, the self-discharging rope winch is provided with two rope outlet wheels, namely a first rope outlet wheel 5 and a second rope outlet wheel 13; wherein, wire rope follow the reel 1 is discharged the warp and is walked around carry out the rope arranging by first play rope sheave 5 behind rope arranging pulley 4 and upwards connect the hoisting point, wire rope follow the reel 1 is discharged the warp and is walked around carry out the rope arranging by second play rope sheave 13 behind rope arranging pulley 4 and downwards connect another hoisting point.
Vertical plates 14 and 15 are arranged at two ends of the winding drum 1; the rope guide pulley 4 is fixed on the pulley bracket 10 through a simple support shaft 16, as shown in fig. 5; the radial section of the rope guide pulley 4 is perpendicular to the radial section of the winding drum 1, and an included angle of 10-40 degrees is formed between the radial section of the rope guide pulley and the axial section of the winding drum 1.
The winding drum 1 is provided with a rope winding and unwinding groove 102, and the number of the rope winding and unwinding groove 102 is the same as that of the hoisting points of the self-discharging rope hoister; the rope winding and unwinding groove 102 is provided with a plurality of grooves 103 for winding a steel wire rope; pulley grooves 401 are formed in the rope arranging pulley 4, and the number of the rope winding and unwinding grooves 102 is the same as that of the rope arranging pulley 4; the rope outlet wheels 5 and 13 are provided with at least one rope outlet groove 501, and the number of the rope storage grooves 102 is the same as that of the rope outlet grooves 501.
When the self-rope-discharging winch of the embodiment is used specifically, the motor speed reducer 2 is opened, the winding drum 1 rotates, the rope-discharging pulley 4 is driven to move through the chain wheel 8, the steel wire rope is wound on the winding drum 1, the rope is discharged from the rope-discharging pulley 4 and then is discharged (reversely wound) through the rope-discharging pulleys 5 and 13, and the lifting height and the horizontal position of each lifting point are adjusted.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather is described in the embodiments and descriptions herein to illustrate the principles of the invention and that there can be variations and modifications, such as size enlargement or size reduction, or material changes, without departing from the spirit and scope of the invention. The scope of the invention is defined by the appended claims and equivalents thereof.