CN110155865B - Winch assembly structure and installation method thereof - Google Patents
Winch assembly structure and installation method thereof Download PDFInfo
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- CN110155865B CN110155865B CN201910398435.9A CN201910398435A CN110155865B CN 110155865 B CN110155865 B CN 110155865B CN 201910398435 A CN201910398435 A CN 201910398435A CN 110155865 B CN110155865 B CN 110155865B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/06—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable positively attached to a winding drum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B15/00—Main component parts of mining-hoist winding devices
- B66B15/02—Rope or cable carriers
- B66B15/06—Drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention relates to a winch assembly structure and an installation method thereof. The rope angle of the existing winch is increased due to deformation of the shock pad, and the use safety is affected. The invention comprises a mounting seat, a winch and a winding drum, wherein the winding drum is driven to rotate by the winch, the axis of the winding drum is obliquely arranged, the extension end of the winding drum is lower than the linkage end, a shock pad group is arranged between the winch and the mounting seat, a rope groove is arranged on the winding drum, an included angle between the axis of the rope groove and a steel wire rope forms a rope releasing angle gamma, and when the steel wire rope is forced to drive the winding drum to swing, the shock pad group deforms and enables gamma to be less than or equal to 1 deg. The hoist engine is installed on the mount pad with reel axis slope mode, and the extension end of reel is less than the drive end setting, effectively prevents through reducing the rope angle of putting that wire rope from carrying out the axially sliding's condition along the reel periphery wall, and then prevents that wire rope from taking place the condition that breaks away from with corresponding rope groove, ensures that wire rope steadily pulls the car, guarantees elevator safety in utilization.
Description
Technical Field
The invention relates to the field of elevators, in particular to a winch assembly structure and an installation method thereof.
Background
The van-type elevator is widely applied to our life, and is convenient for people to go up and down in high-rise buildings. The existing van-type elevator comprises a vertically arranged well, a guide rail arranged in the well, a car capable of lifting along the guide rail in the well and a driving mechanism for driving the car to lift, wherein the driving mechanism comprises a winch with a winding drum, a steel wire rope and a pulley block, the winding drum comprises a linkage end matched with the winch and an extension end extending outwards, one end of the steel wire rope is fixedly connected and wound on the winding drum of the winch, the other end of the steel wire rope is fixedly connected and wound on the car, the middle part of the steel wire rope is wound on the pulley block, and the winding drum is used for winding and unwinding the steel wire rope to realize lifting of the car.
The existing winch is fixedly connected to the bottom of a hoistway through a mounting seat, after installation is completed, the axis of a winding drum is horizontally arranged, the driving end of the winding drum is arranged at the same height as the extension end, a shock pad group is clamped between the bottom of the winch and the mounting seat, and the structure has the following defects: because the shock pad group plays the effect of slowing down the vibration through self deformation, when the load is great in the car, the gravity of car can pass through wire rope and transmit to on the reel, and the shock pad group takes place deformation because of receiving the effort from the reel for the extension end of reel can lead to the rope angle grow of putting because of upwarp, leads to winding wire rope on the reel can slide along reel circumference lateral wall and take place to break away from the condition of reel, has the potential safety hazard.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a winch assembly structure and an installation method thereof, wherein a winch is installed on an installation seat in a manner of inclining the axis of a winding drum, so that the winding drum reserves the swinging deformation quantity after being stressed, the included angle between a steel wire rope and a rope groove is controlled in a smaller range when the steel wire rope is stressed, and the safety performance is improved.
The invention is realized by the following modes: the utility model provides a hoist assembly structure, includes the mount pad, sets up hoist engine and winding wire rope's on the mount pad reel, the reel passes through the linkage end to be connected in hoist engine lateral part, so that the hoist engine drives the reel and rotates, the axis of reel is the slope setting, the epitaxial end of reel is less than the linkage end of reel, be equipped with shock pad group between hoist engine and the mount pad, be equipped with on the periphery wall of reel and be the heliciform setting and supply wire rope winding rope groove, the rope groove axis with contained angle formation between the wire rope is put rope angle gamma, and when wire rope atress drove the reel and swings, shock pad group deformation and makes gamma be less than or equal to 1. The hoist engine is installed on the mount pad with reel axis slope mode, and the extension end of reel is less than the drive end setting, when the reel atress swing and make extension end upwarp, the rope groove axis with wire rope's axis tends to be each other to be parallel, through reducing the rope angle of putting and prevent effectively that wire rope from carrying out the axially sliding's condition along the reel periphery wall, and then prevent wire rope from taking place the condition that breaks away from with corresponding rope groove, ensure that wire rope steadily pulls the car, guarantee elevator safety in utilization. When gamma is less than or equal to 1 DEG, the axes of the rope groove and the steel wire rope tend to be parallel.
Preferably, the bottom surface of the winch is provided with a connecting lug, and the fastening piece passes through the connecting lug, the shock pad group and the mounting seat and is in threaded connection with the nut. The fastener is in threaded connection with the nut to vertically clamp the shock pad group, so that the winch is firmly installed on the installation seat, the shock pad group can reduce the vibration of the winch by utilizing self deformation, and further the stable operation of the winch is ensured.
Preferably, the damping pad group comprises a first damping block arranged between the mounting seat and the nut and a second damping block arranged between the mounting seat and the connecting lug, the first damping block is arranged on the bottom surface of the winch and is close to the side area of the winding drum, and the second damping block is arranged on the bottom surface of the winch and is far away from the side area of the winding drum. The first damping block and the second damping block can provide uniform and effective limiting support for two sides of the winch. In addition, when the winding drum is stressed and the outer extending end is tilted upwards, the first damping block and the second damping block absorb the load from the steel wire rope through compression.
Preferably, the first damper block and the second damper block have different heights so that the spool axis is disposed obliquely. After the winch is installed, the axis of the winding drum is inclined, and the extension end of the winding drum is lower than the driving end.
A method for installing a winch assembly structure comprises the steps that a winch is installed on an installation seat, an included angle alpha 2 is formed between the axis of a winding drum and the horizontal plane, when a steel wire rope is stressed, the included angle alpha 1 is formed between the axis of the winding drum and the horizontal plane, the angle difference between the axis of the winding drum and the horizontal plane before and after the stress is delta alpha, alpha 2 = alpha 1 plus delta alpha, the helix angle of the winding drum is A, and when A-1 degrees is more than or equal to alpha 1 degrees and less than or equal to A+1 degrees, the winding drum swings and enables gamma to be less than or equal to 1 degrees.
Firstly, when the winding machine is installed, the winding machine is installed on the installation seat at an angle of alpha 2 with the axis of the winding drum, when the winding machine is installed in place and the steel wire rope is not stressed, the included angle between the axis of the winding drum and the horizontal plane is alpha 2 in an unstressed state, when the elevator car is loaded and transported and the steel wire rope is stressed, the extending end of the winding drum is tilted upwards due to stress, at the moment, the included angle between the axis of the winding drum and the horizontal plane is alpha 1 in the stressed state, and the swing angle of the winding drum is delta alpha when the winding drum is switched between the two states, so that alpha 2 = alpha 1 < + > delta alpha is obtained; secondly, a small rope releasing angle is required between the steel wire rope and the axis of the rope groove when the steel wire rope is stressed, and as the rope groove is provided with a spiral angle A, gamma=α1-A, when the winding drum is stressed and A-1 degrees is more than or equal to α1 degrees and less than or equal to A+1 degrees, the requirement that gamma is less than or equal to 1 degrees is met, so that the steel wire rope and the rope groove have good anti-falling performance, the running safety of a car can be effectively ensured, and the value range of alpha 1 is obtained; finally, the parameter alpha 1 and the parameter delta alpha can be obtained through calculation, the parameter alpha 2 is obtained through calculation, the installation posture of the winch is adjusted according to the parameter alpha 2, the fact that the parameter gamma can be effectively reduced when the winch is used is ensured, and the anti-drop performance of the steel wire rope is effectively improved.
Preferably, α1=arctan (P/d), where the parameter P is the spool pitch and the parameter d is the spool diameter. When α1=a, γ=0°, the wire cross has a good anti-drop property, and the magnitude of the parameter a is correlated with the spool pitch and the spool diameter, thereby obtaining data of the parameter.
Preferably, Δα=2×arctan { f×cos [ arctan (p/d)]*（2*L1+L2）/（2*k* L2 2 ) And the parameter F is the load born by the steel wire rope, the parameter L1 is the axial distance between the joint of the steel wire rope and the winding drum and the first damping block, the parameter L2 is the distance between the first damping block and the second damping block, and the parameter K is the elastic coefficient of the damping pad group. The swing angle of the winding drum before and after the stress is related to the parameters F, L, L2 and K, and is obtained through the formula.
After specific values of the parameters alpha 1 and delta alpha are obtained, the value of the parameter alpha 2 can be obtained through a formula alpha 2 = alpha 1 plus delta alpha, so that an attitude adjustment basis is provided for installing the winch.
Preferably, the rated load of the steel wire rope is B, and F/B is more than or equal to 0.5 and less than or equal to 1. The car does not frequently run under full load when in use, so the parameter F is preferably an average value of actual loads, and the parameter F is set according to the use condition, so that the parameter gamma meets the preset requirement when the car runs.
Preferably, the axial distance between the extension end of the winding drum and the first damping block is L, and L1/L is more than or equal to 0.5 and less than or equal to 1. Because the wire rope can be spirally wound in the rope groove, when the height of the car changes, the position of the joint of the wire rope and the winding drum also changes, so that the parameter L1 is a change parameter, when the car is at two height extremes, two parameters L1 are obtained, the average value of the two extreme values is set to be the vertical position of the parameter L1, and the parameter gamma meets the preset requirement when the car runs.
Preferably, the angle delta alpha is more than or equal to 0 degree and less than or equal to 5 degrees, and the position and the elastic coefficient of the limiting shock pad group are adjusted by setting the swing amplitude of the winding drum, so that the running safety of the car is ensured.
Preferably, γ=0°, ensuring that the wire rope is always stably embedded in the rope groove, and ensuring the safety of the car running.
The invention has the outstanding beneficial effects that: the parameter alpha 2 is obtained through calculation of the parameters alpha 1 and delta alpha, the winch is installed at an alpha 2 angle with the axis of the winding drum, the rope releasing angle is enabled to be close to 0 after the winding drum swings under the force, the situation that the steel wire rope axially slides along the peripheral wall of the winding drum is effectively prevented by reducing the rope releasing angle, the situation that the steel wire rope is separated from a corresponding rope groove is further prevented, the stable dragging of the steel wire rope on the car is ensured, and the use safety of the elevator is ensured.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic diagram of a force-bearing structure of a hoist;
FIG. 3 is a schematic view of a spool axis wobble structure;
in the figure: 1. the wire rope is characterized by comprising an installation seat, 2, a winch, 3, a winding drum, 4, a wire rope, 5, rope grooves, 6, connecting lugs, 7, a first damping block, 8, a second damping block, 9 and a winding drum axis when the wire rope is in a non-stressed state, and 10 and a winding drum axis when the wire rope is in a stressed state.
Detailed Description
The essential features of the invention are further described in connection with the accompanying drawings and the detailed description.
The winch assembly structure shown in fig. 1 comprises an installation seat 1, a winch 2 arranged on the installation seat 1 and a winding drum 3 for winding a steel wire rope 4, wherein the winding drum 3 is connected to the side part of the winch 2 through a linkage end so that the winch 2 drives the winding drum 3 to rotate, the axis of the winding drum 3 is obliquely arranged, the extension end of the winding drum 3 is lower than the linkage end of the winding drum 3, a shock pad group is arranged between the winch 2 and the installation seat 1, a rope groove 5 which is spirally arranged and used for winding the steel wire rope 4 is arranged on the peripheral wall of the winding drum 3, and an included angle between the axis of the rope groove 5 and the steel wire rope 4 forms a rope releasing angle gamma.
In actual operation, the winch 2 is fixedly connected to the mounting seat 1 in a manner of inclining the axis of the winding drum 3, and a preliminary rotation amount is provided for the winch 2 to swing due to the stress deformation of the shock pad group, so that the winch 2 has a smaller rope releasing angle after the stress swing, the wire rope 4 is effectively prevented from being separated from the rope groove 5, and the operation safety of the elevator is ensured.
In actual operation, the winch 2 is installed on the installation seat 1, an included angle alpha 2 is formed between the axis of the winding drum 3 and the horizontal plane, when the steel wire rope 4 is stressed, the included angle alpha 1 is formed between the axis of the winding drum 3 and the horizontal plane, the angle difference between the axis of the winding drum 3 and the horizontal plane before and after the stress is delta alpha, alpha 2 = alpha 1 plus delta alpha, the helix angle of the winding drum 3 is A, and when A-1 degrees is more than or equal to alpha 1 degrees and less than or equal to A+1 degrees, the winding drum 3 swings and enables gamma to be less than or equal to 1 degrees. The winch 2 swings after receiving the load from the steel wire rope 4, the swing angle is delta alpha, meanwhile, the winch 2 needs to have a small rope releasing angle after swinging, the parameter alpha 1 of the winch 2 after being stressed is required to be close to the helix angle A of the winding drum 3, the axis of the winding drum 3 needs to be provided with the parameter alpha 2 when the winch 2 is installed, the winch 2 approaches to the helix angle A after being subjected to the swinging of the parameter delta alpha, and therefore the anti-falling performance of the steel wire rope 4 is ensured.
In actual operation, in order to calculate the parameter α2, the present solution adopts a method of calculating the parameters α1 and Δα, respectively.
In actual operation α1=arctan (P/d), where the parameter P is the spool 3 pitch and the parameter d is the spool 3 diameter. The parameter α1 is obtained by:
a first step of obtaining parameters P and d by direct measurement of the reel 3, obtaining a parameter a=arctan (P/d); second, since γ=a- α1, α1=a- γ is obtained; thirdly, carrying the formula in the first step into the formula in the second step to obtain α1=a- γ=arctan (p/d) - γ; in the fourth step, in order to secure the anti-drop performance of the wire rope 4, γ=0°, α1=arctan (p/d) is preferably obtained.
In practice, Δα=2×arctan { f×cos [ arctan (p/d)]*（2*L1+L2）/（2*k* L2 2 ) And the parameter F is the load born by the steel wire rope 4, the parameter L1 is the axial distance between the joint of the steel wire rope 4 and the winding drum 3 and the first damping block 7, the parameter L2 is the distance between the first damping block 7 and the second damping block 8, and the parameter K is the elastic coefficient of the damping pad group.
In actual operation, the parameter Δα is obtained by:
in the first step, according to the principle of conservation of energy, the load received by the wire rope 4 is transferred to the first damper block 7 and the second damper block 8, and the winding machine 2, the winding drum 3, the mounting seat 1 and the damping pad group are taken as a whole, at this time, as shown in fig. 2, the joint of the wire rope 4 and the winding drum 3 has an acting force F1 perpendicular to the axis of the winding drum 3, the first damper block 7 has an acting force F2 perpendicular to the axis of the winding drum 3, the second damper block 8 has an acting force F3 perpendicular to the axis of the winding drum 3, and the formulas f1=f2×l2 and f1×l1=f3×l2 are satisfied, so as to obtain f2=f1×l2/l2 and f3=f1×l1/l2;
and a second step of: assuming that the compression amount of the first shock pad is x and x=f2/k is satisfied, F2 in the first step is brought to obtain x=f1 (l1+l2)/(k×l2), and simultaneously assuming that the compression amount of the second shock pad is y and y=f3/k is satisfied, F3 in the first step is brought to obtain y=f1×l1/(k×l2);
and a third step of: as shown in fig. 3, assuming that the distance between the center of oscillation of the roll 3 and the outer extension end of the roll 3 is L3, the axial distance between the center of oscillation of the roll 3 and the first damper block 7 is L4, and l2=l3+l4, x/y=l3/L4 is satisfied, l3=xl2/(x+y) is obtained by combining simplification, wherebyObtaining tan (Δα/2) =0.5×x/L3, where Δα=2×arctan (x+y)/(2×l2), and taking the parameter x and the parameter y in the second step into Δα=2×arctan [ f1×2l1+l2)/(2k×l2 ] 2 ）]；
Fourth step: the wire rope 4 is subjected to a load F, when the wire rope 4 is stressed, γ=a- α1 and f1=f×cos α1, in order to obtain a result of γ=0°, substituting a=α1 into f1=f×cos α1 to obtain f1=f×cosa, and substituting this formula into the formula in the third step to obtain Δα=2×arctan { f×cos [ arctan (p/d)]*（2*L1+L2）/（2*k* L2 2 ）｝。
α2 is obtained by calculating parameters α1 and Δα, respectively, and: α2=arctan (p/d) +2×arctan { f×cos [ arctan (p/d)]*（2*L1+L2）/（2*k* L2 2 ) And provides a basis for the installation posture of the installation hoist 2.
In actual operation, the bottom surface of the winch 2 is provided with the connecting lug 6, and the fastener sequentially passes through the connecting lug 6, the shock pad group and the mounting seat 1 from top to bottom and then is in threaded connection with the nut, so that the connecting lug 6 and the mounting seat 1 can axially and relatively move along the axis of the fastener, the winch 2 is ensured to be firmly connected to the mounting seat 1, and the shock pad group can be utilized to play a role in shock absorption.
In actual operation, the shock pad group is including locating the first snubber block 7 between mount pad 1 and nut and locating the second snubber block 8 between mount pad 1 and engaging lug 6, first snubber block 7 is located hoist engine 2 bottom surface and is close to reel 3 side region, second snubber block 8 is located hoist engine 2 bottom surface is kept away from reel 3 side region. Specifically, the shock pad group still includes with the cooperation of first shock pad and set up the first auxiliary pad between mount pad 1 and engaging lug 6 and with the cooperation of second shock pad and set up the second auxiliary pad between mount pad 1 and nut. The parameter x represents the sum of the compression amounts of the first shock absorber mass 7 and the first auxiliary cushion. The parameter y represents the sum of the compression amounts of the second damper mass 8 and the second auxiliary cushion.
In actual operation, the rated load of the steel wire rope 4 is B, and F/B is more than or equal to 0.5 and less than or equal to 1. When the wire rope 4 is in an unstressed state, the wire rope 4 is not fixedly connected with the car at one end. From the perspective of use, on one hand, because wire rope 4 can be fixed with the car all the time when using for wire rope 4 receives effort all the time when using, on the other hand, wire rope 4 is in the time of full load state and reach rated load less because of the car, so parameter F usually can set up at reasonable scope according to actual state of use, ensures that the elevator has great probability to obtain less angle of putting when moving, and then ensures elevator safety in utilization. Specifically, when the elevator is a home elevator, the number of the members is fixed, so that the parameter F can be reasonably set according to the number of the members, for example, the number of the members is four, and the parameter F is set as the total of the weight of the car and the weight of two members.
In actual operation, the axial distance between the extension end of the winding drum 3 and the first shock absorption block 7 is L, and L1/L is more than or equal to 0.5 and less than or equal to 1. As the reel 3 winds and unwinds the wire rope 4, the connection point of the wire rope 4 to the reel 3 moves in the axial direction of the reel 3, so that the parameter L1 forms a variable. When determining the value of the parameter L1, it is preferable to set the value according to the lifting width of the car. Specifically, first, when the car is at the lowest point of operation or the lowest point of the usual operation range, a first position at which the wire rope 4 is connected to the reel 3 is obtained; then, when the car is at the highest running point or the highest running range, a second position of the connection part of the steel wire rope 4 and the winding drum 3 is obtained; finally, the midpoint between the first position and the second position is obtained, and the axial distance between the midpoint and the first damping block 7 is set as the value of the parameter L1, so that the rope releasing angle can approach 0 degree or reciprocate in the positive and negative areas of 0 degree when the elevator runs.
In actual operation, the delta alpha is more than or equal to 0 DEG and less than or equal to 5 DEG, and the values of the parameter L1, the parameter L2 and the parameter K are limited by limiting the delta alpha, so that the winding drum is ensured to swing in a safety range.
In actual operation, the first damper block 7 and the second damper block 8 have different heights, so that the axis of the winding drum 3 is obliquely arranged, the winding machine can realize the inclination of the axis of the winding drum through the first damper block 7 and the second damper block 8 with different heights, and the inclination of the axis of the winding drum can also be realized directly through the way of obliquely arranging the mounting seats, and the invention is also regarded as a specific embodiment of the invention.
Claims (7)
1. The installation method of the winch assembly structure comprises the steps that a shock pad group is arranged between a winch (2) and an installation seat (1), a connecting lug (6) is arranged on the bottom surface of the winch (2), a fastener penetrates through the connecting lug (6), the shock pad group and the installation seat (1) and then is in threaded connection with a nut, the shock pad group comprises a first shock absorption block (7) arranged between the installation seat (1) and the nut and a second shock absorption block (8) arranged between the installation seat (1) and the connecting lug (6), the winch (2) drives a winding drum (3) wound with a steel wire rope (4) to rotate, a rope groove (5) which is spirally arranged and is used for winding the steel wire rope (4) is arranged on the peripheral wall of the winding drum (3), an included angle gamma between the axis of the rope groove (5) and the steel wire rope (4) is formed, the winding drum (3) and the horizontal plane form an included angle alpha 2, when the axis of the winding drum (3) and the horizontal plane (4) are in a delta 1 DEG and delta alpha 1-alpha 1 DEG, alpha 1 DEG and alpha 1 DEG are equal to or less than or equal to alpha 1 DEG, alpha 1 DEG and alpha 1, wherein the parameter P is the pitch of the spool (3), the parameter d is the diameter of the spool (3), Δα=2×arctan { f×cos [ arctan (P/d)]*(2*L1+L2)/(2*K*L2 2 ) And the parameter F is the load born by the steel wire rope (4), the parameter L1 is the axial distance between the joint of the steel wire rope (4) and the winding drum (3) and the first damping block (7), the parameter L2 is the distance between the first damping block (7) and the second damping block (8), and the parameter K is the elastic coefficient of the damping pad group.
2. The method of installing a hoisting machine assembly according to claim 1, characterized in that the rated load of the wire rope (4) is B, 0.5-1.
3. The method for installing the winch assembly structure according to claim 1, wherein the axial distance between the extension end of the winding drum (3) and the first damper block (7) is L, and L1/L is more than or equal to 0.5 and less than or equal to 1.
4. The method of installing a hoisting machine assembling structure according to claim 1, wherein Δα is 0 ° or more and 5 ° or less; alternatively, γ=0°.
5. A winch assembly structure using the installation method of any one of claims 1 to 4, comprising an installation seat (1), a winch (2) arranged on the installation seat (1) and a winding drum (3) for winding a steel wire rope (4), wherein the winding drum (3) is connected to the side part of the winch (2) through a linkage end, and the winch assembly structure is characterized in that the axis of the winding drum (3) is obliquely arranged, the extension end of the winding drum (3) is lower than the linkage end of the winding drum (3), and when the steel wire rope (4) is stressed to drive the winding drum (3) to swing, the shock pad is deformed and gamma is less than or equal to 1 degree.
6. The winch assembly structure according to claim 5, wherein the first damper (7) is provided on a side area of a bottom surface of the winch (2) close to the winding drum (3), and the second damper (8) is provided on a side area of the bottom surface of the winch (2) away from the winding drum (3).
7. A hoisting machine assembly structure according to claim 6, characterized in that the first damper block (7) and the second damper block (8) have a differentiated height so that the spool (3) axis is arranged obliquely.
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| CN110155865A (en) | 2019-08-23 |
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