An adaptive steel wire rope deflection compensation device and hoisting equipment
By introducing an adaptive wire rope deflection compensation device into the lifting equipment, the length of the wire rope with small deflection is adjusted by the elastic force of the spring, which solves the problem of maintaining the horizontal position of the lifting device when the load changes, and realizes stable lifting of the lifting device.
Patent Information
- Application Number
- CN202210803634.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-07-07
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2042-07-07
AI Technical Summary
Existing lifting equipment has difficulty keeping the lifting gear horizontal during load changes, and the actual lifting length of the parallel wire ropes is inconsistent, affecting the normal operation of the lifting equipment.
An adaptive wire rope deflection compensation device is used in the lifting equipment, including a first connecting plate, a second connecting plate, a guide bolt, a spring, and an adjusting nut. The actual lifting length of the wire rope with small deflection is compensated by adjusting the elastic force of the spring, so that it is consistent with other wire ropes.
When the load changes, the adaptive wire rope deflection compensation device can maintain the horizontal state of the lifting device, ensure the consistency of the lifting length, and improve the stability and reliability of the lifting equipment.
Smart Images

Figure CN116462117B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of hoisting equipment, in particular to a self-adaptive steel wire rope deflection compensation device and hoisting equipment. BACKGROUND
[0002] At present, in order to improve the hoisting stability and the load adaptability, the hoisting equipment mostly adopts the parallel connection of multiple steel wire rope assemblies to form a hoisting system, so as to enhance the hoisting performance. For example, the Chinese utility model patent application with the publication number CN216638715U discloses a portal crane with anti-swing function, which comprises a main beam, a driving motor, three winding drums, a fixed pulley set and a movable pulley set. The winding drums are connected with the driving motor through transmission mechanisms, and the synchronous rotation of the three winding drums is ensured through the transmission mechanisms. Each winding drum is correspondingly wound with a group of steel wire ropes, and each group of steel wire ropes is connected to different positions on the lifting tool through the movable pulley set. The winding and unwinding of the steel wire ropes realize the stable and reliable lifting of the lifting tool.
[0003] However, when the span is large and the stroke is long, the parallel connection of the steel wire rope assemblies will cause the deflection of the parallel steel wire ropes to be different due to the different winding paths, transmission efficiencies and installation structures and other factors (the deflection of the steel wire rope refers to the deviation of the extended axis of the steel wire rope in the unloaded state from the extended axis of the steel wire rope in the fully straightened state, and the greater the deviation, the greater the deflection of the steel wire rope). Since the actual hoisting length of the steel wire rope with different deflection changes differently when it is straightened under load, the actual hoisting length of the steel wire rope with large deflection changes greatly when the load changes, which causes the following tilting phenomena of the lifting tool: ① when the lifting tool changes from the unloaded state to the loaded state, the lifting tool is adjusted to be horizontal in the unloaded state, then the load is added, the load of the steel wire rope increases, the steel wire rope is gradually straightened, the actual hoisting length of the steel wire rope with large deflection increases greatly, which causes the lifting tool to gradually tilt obviously; ② when the lifting tool is adjusted to be horizontal in the loaded state, the steel wire rope changes from the straightened state to the natural curved state when it changes to the unloaded state, the actual hoisting length of the steel wire rope with large deflection decreases greatly, which causes the lifting tool to tilt obviously again, which directly affects the normal operation function of the hoisting equipment. SUMMARY
[0004] The present application aims to provide a hoisting equipment to solve the problem that the lifting tool of the existing hoisting equipment is difficult to maintain horizontal during the load change. The present application also provides a self-adaptive steel wire rope deflection compensation device for a hoisting equipment to solve the problem that the actual hoisting length of the parallel steel wire ropes in the existing hoisting equipment is difficult to maintain consistent during the load change.
[0005] To achieve the above object, the lifting device in the present application adopts the following technical scheme: it comprises a plurality of parallel lifting steel wires, each of which is connected between a winding drum and a fixed base, and further comprises a self-adaptive steel wire deflection compensation device, the steel wires including a small-deflection steel wire whose deflection under no-load state is smaller than that of other steel wires, the self-adaptive steel wire deflection compensation device being connected in series between the small-deflection steel wire far from the winding drum and the fixed base; the self-adaptive steel wire deflection compensation device comprises a first connecting plate, a second connecting plate, a guide bolt, a spring and an adjusting nut, the first connecting plate and the second connecting plate being arranged in parallel along the extension direction of a reference axis, the reference axis coinciding with the extension axis of the small-deflection steel wire under load state, the first connecting plate being connected with the small-deflection steel wire, and the second connecting plate being connected with the fixed base; the guide bolt is vertically threaded through the second connecting plate and the first connecting plate in turn along a direction parallel to the reference axis and is threadedly engaged with the adjusting nut, the first connecting plate is guided and fitted on the guide bolt along a direction parallel to the reference axis, the spring is sleeved on the guide bolt between the first connecting plate and the adjusting nut, one end of the spring is in abutting engagement with the adjusting nut, and the other end is in abutting engagement with the first connecting plate, the spring being used to apply an elastic force to the first connecting plate to make it close to the second connecting plate, and the adjusting nut being used to adjust the size of the elastic force to adapt to the deflection compensation requirement.
[0006] The lifting device of the present application has the following beneficial effects: the self-adaptive steel wire deflection compensation device is connected in series on the small-deflection steel wire among the plurality of parallel steel wires, when the load on the steel wire changes, the actual lifting length of the small-deflection steel wire is adaptively compensated by the self-adaptive steel wire deflection compensation device, so that it is consistent with the actual lifting length of other steel wires with larger deflection, thereby ensuring that the lifting appliance on the steel wire can always maintain a horizontal state even when the load changes. Meanwhile, in the self-adaptive steel wire deflection compensation device, the length of the spring can be adjusted by screwing the adjusting nut, and thereby the elastic force applied to the first connecting plate is adjusted, so that the length of the spring and the change relationship of the elastic force can adapt to the actual compensation requirement of the small-deflection steel wire, and the deflection compensation effect is ensured.
[0007] Preferably, the head of the guide bolt is in abutting engagement with the second connecting plate, and the end of the guide bolt with the head is fixed on the second connecting plate by threadedly engaging with a fixed nut.
[0008] The guide bolt is fixedly installed on the second connecting plate, which facilitates the assembly of components and reduces the collision between internal components when the self-adaptive steel wire deflection compensation device is stretched up and down, thereby improving the reliability of the device.
[0009] Preferably, a spacer sleeve is further sleeved between the spring and the guide bolt, the length of the spacer sleeve being smaller than the length of the spring in the initial state, and the spacer sleeve being used to support between the first connecting plate and the adjusting nut to prevent the spring from being excessively compressed.
[0010] The beneficial effect is that the spacer prevents the spring from being compressed too much, guarantees the service life of the self-adapting steel wire rope deflection compensation device, and further ensures reliable deflection compensation effect.
[0011] Preferably, the first connecting plate is hinged with a first connecting piece on the plate surface away from the second connecting plate, the hinge axis of the first connecting plate and the first connecting piece is perpendicular to the reference axis, the first connecting piece is used for fixed connection with the small deflection steel wire rope, the second connecting plate is hinged with a second connecting piece on the plate surface away from the first connecting plate, the hinge axis of the second connecting plate and the second connecting piece is perpendicular to the reference axis, and the second connecting piece is used for fixed connection with the fixed foundation.
[0012] The beneficial effect is that the first connecting plate and the second connecting plate are connected with the steel wire rope and the fixed foundation through the first connecting piece hinged on the first connecting plate and the second connecting piece hinged on the second connecting plate, the steel wire rope, the first connecting plate, the second connecting plate and the fixed foundation are connected one by one, which is convenient for adapting to the possible offset between the steel wire rope and the fixed foundation, guarantees reliable connection between the steel wire rope and the fixed foundation, and reduces the vibration transmission between the steel wire rope and the fixed foundation.
[0013] Preferably, the guide bolt has multiple and is uniformly and parallelly arranged around the reference axis, the first connecting plate and the second connecting plate are both provided with a connecting lug, one end of the first connecting piece is hinged with the connecting lug on the first connecting plate, and the other end is fixedly and detachably connected with the small deflection steel wire rope, one end of the second connecting piece is hinged with the connecting lug on the second connecting plate, and the other end is fixedly connected with the fixed foundation.
[0014] The beneficial effect is that the guide bolt is uniformly and parallelly arranged around the reference axis, which can ensure the consistency of the extension compensation direction of the self-adapting steel wire rope deflection compensation device and the extension direction of the steel wire rope, and is conducive to guaranteeing good deflection compensation effect.
[0015] The adaptive steel wire rope deflection compensation device for hoisting equipment provided by the present application adopts the technical scheme as follows: the adaptive steel wire rope deflection compensation device comprises a first connecting plate, a second connecting plate, a guide bolt, a spring and an adjusting nut, is used for being connected in series between a steel wire rope and a fixed base, the first connecting plate and the second connecting plate are arranged in parallel along the extension direction of a reference axis, the reference axis coincides with the extension axis of the steel wire rope in a load state, the first connecting plate is used for being connected with the steel wire rope, the second connecting plate is used for being connected with the fixed base, the guide bolt is vertically passed through the second connecting plate and the first connecting plate in sequence along a direction parallel to the reference axis and is threadedly matched with the adjusting nut, the first connecting plate is guided and mounted on the guide bolt along the direction parallel to the reference axis, the spring is sleeved on the guide bolt between the first connecting plate and the adjusting nut, one end of the spring is top-pressing matched with the adjusting nut, the other end is top-pressing matched with the first connecting plate, the spring is used for applying an elastic force to the first connecting plate to approach the second connecting plate, and the adjusting nut is used for adjusting the size of the elastic force to adapt to the deflection compensation requirement.
[0016] The adaptive steel wire rope deflection compensation device of the present application sets the guide bolt and the spring between the two connecting plates, so that the connecting plates form a floating telescopic cooperation structure, can adaptively compensate the actual hoisting length of the steel wire rope with smaller deflection in the parallel steel wire rope, and further ensure the horizontal hoisting of the lifting appliance.
[0017] Preferably, the bolt head of the guide bolt is stop matched with the second connecting plate, and the end of the guide bolt with the bolt head is fixed on the second connecting plate through the thread cooperation with the fixed nut.
[0018] Preferably, a spacer sleeve is further sleeved between the spring and the guide bolt, the length of the spacer sleeve is smaller than the length of the spring in the initial state, and the spacer sleeve is used for being supported between the first connecting plate and the adjusting nut to prevent the spring from being excessively compressed.
[0019] The spacer sleeve is arranged between the spring and the guide bolt to protect the spring, avoid the structure performance damage caused by the excessive compression of the spring, and ensure the compensation effect of the adaptive steel wire rope deflection compensation device.
[0020] Preferably, a first connecting piece is hinged on the plate surface of the first connecting plate away from the second connecting plate, the hinge axis of the first connecting plate and the first connecting piece is perpendicular to the reference axis, the first connecting piece is used for being fixedly connected with the small-deflection steel wire rope, and a second connecting piece is hinged on the plate surface of the second connecting plate away from the first connecting plate, the hinge axis of the second connecting plate and the second connecting piece is perpendicular to the reference axis, and the second connecting piece is used for being fixedly connected with the fixed base.
[0021] Preferably, the guide bolts are multiple and uniformly arranged around the reference axis, the first connecting plate and the second connecting plate are both provided with connecting ears, one end of the first connecting member is hingedly connected with the connecting ear on the first connecting plate, and the other end is fixedly and detachably connected with the small-deflection steel wire, one end of the second connecting member is hingedly connected with the connecting ear on the second connecting plate, and the other end is fixedly connected with the fixed base. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 Fig. 1 is a schematic diagram of the winding path of a single steel wire in the embodiment one of the hoisting device of the present application;
[0023] Figure 2 Fig. 2 is a schematic diagram of the structure of the self-adaptive steel wire deflection compensation device of the present application;
[0024] Figure 3 Fig. 3 is a side view of Figure 2 Fig. 4 is a side view of
[0025] In the figure: 1, winding drum; 2, fixed base; 3, steel wire; 4, fixed pulley; 5, movable pulley; 6, lifting tool; 7, first connecting plate; 8, second connecting plate; 9, guide bolt; 10, fixing nut; 11, adjusting nut; 12, spring; 13, spacer sleeve; 14, first connecting member; 15, second connecting member; 16, washer; 17, trolley; 18, trolley. DETAILED DESCRIPTION
[0026] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application, that is, the described embodiments are only one embodiment of the present application, but not all embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.
[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0028] It should be noted that the relationship terms such as "first" and "second" and the like appearing in the present disclosure are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, terms such as "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the elements defined by the statement "including a" and the like do not exclude the presence of additional identical elements in the process, method, article or device including the elements.
[0029] The features and performances of the present application are further described in detail below in conjunction with examples.
[0030] Specific embodiment one of the hoisting device of the present application: the hoisting device of the present embodiment includes a hoisting traction system, the hoisting traction system includes at least two steel wires 3 hoisted in parallel and a pulley block, the running path of a single steel wire 3 in the hoisting traction system is as shown in Figure 1 The definition of X direction is longitudinal direction, Y direction is transverse direction, and Z direction is vertical direction, both ends of the steel wire 3 extend along X direction, one end is connected to the winch 1, and the other end is connected to the fixed base 2 after running through the pulley block. The pulley block includes at least two pairs of fixed pulleys 4 and one movable pulley 5, one pair of fixed pulleys 4 is used to switch the extension direction of the running path of the steel wire 3 between X direction and Y direction, the pair of fixed pulleys 4 is arranged on a large car 17 which can move in X direction, the large car 17 is further provided with a small car 18 which can move in Y direction, and the other pair of fixed pulleys 4 is used to switch the extension direction of the running path of the steel wire 3 between Y direction and Z direction, the pair of fixed pulleys 4 is arranged on the small car 18, and the movable pulley 5 is arranged between the pair of fixed pulleys 4, the movable pulley 5 is connected with the lifting tool 6, the movable pulley 5 is vertically lifted by winding and unwinding the steel wire 3 through the winch 1, and then the lifting tool 6 connected with the movable pulley 5 is hoisted. The movement of the lifting tool in X, Y and Z directions is realized by the large car 17, the small car 18 and the movable pulley 5 respectively, and then the free movement of the lifting tool 6 is realized.
[0031] The present application includes a small-deflection steel wire in the plurality of parallel hoisted steel wires 3, the deflection of the small-deflection steel wire in the unloaded state is smaller than that of the other steel wires 3, and a self-adaptive steel wire deflection compensation device (not shown) is connected in series between the small-deflection steel wire and the fixed base 2, the specific structure of the self-adaptive steel wire deflection compensation device is referred to Figure 1 Figure 2 and Figure 3 As shown, the adaptive steel wire rope deflection compensation device mainly comprises a first connecting plate 7, a second connecting plate 8, a spring 12, a guide bolt 9 and an adjusting nut 11.
[0032] The guide bolt 9 has two guide bolts 9, both of which are vertically and perpendicularly installed on the second connecting plate 8 along a direction parallel to the extension direction of the reference axis, the bolt head of the guide bolt 9 is in abutting cooperation with the second connecting plate 8, and one end of the bolt head of the guide bolt 9 is fixed on the second connecting plate 8 by cooperation with the fixing nut 10. The first connecting plate 7 is provided with a guide hole corresponding to the guide bolt 9, the guide bolt 9 passes through the guide hole on the first connecting plate 7 and is in threaded cooperation with the adjusting nut 11, so that the first connecting plate 7 is movably guided and installed on the guide bolt 9 along a direction parallel to the reference axis.
[0033] The spring 12 is sleeved on the guide bolt 9 between the adjusting nut 11 and the first connecting plate 7, one end of the spring 12 is in abutting cooperation with the adjusting nut 11, and the other end is in abutting cooperation with the plate surface of the first connecting plate 7 away from the second connecting plate 8, the spring 12 in the initial state abuts and presses the first connecting plate 7 to the fixing nut 10 for fixing the guide bolt 9 on the second connecting plate 8, and a gasket 16 is further arranged between the adjusting nut 11 and the spring 12 to ensure the reliable abutting and pressing cooperation between the spring 12 and the adjusting nut 11.
[0034] The adjusting nut 11 is used for adjusting the length of the spring 12 in the initial state, a spacer sleeve 13 is further sleeved between the spring 12 and the guide bolt 9, the spacer sleeve 13 extends along the length direction of the guide bolt 9, the length of the spacer sleeve 13 is less than the length of the spring 12 in the initial state, the spacer sleeve 13 is supported between the adjusting nut 11 and the first connecting plate 7 to prevent the spring 12 from being damaged by being excessively compressed, and the length of the spring 12 in the initial state minus the length of the spacer sleeve 13 is the compensation distance of the adaptive steel wire rope 3 deflection compensation device.
[0035] The first connecting plate 7 is hingedly connected with a first connecting piece 14 on the plate surface away from the second connecting plate 8, the hinging axis of the first connecting plate 7 and the first connecting piece 14 is perpendicular to the reference axis, one end of the first connecting piece 14 away from the first connecting plate 7 is fixedly connected with the steel wire rope 3, and the plate surface of the second connecting plate 8 away from the first connecting plate 7 is hingedly connected with a second connecting piece 15, the hinging axis of the second connecting plate 8 and the second connecting piece 15 is also perpendicular to the reference axis, and the second connecting piece 15 is fixedly connected with the fixed base 2 to floatingly connect one end of the steel wire rope 3 away from the winding drum 1 to the fixed base 2.
[0036] The lifting device of the present application is used in practice, the deflection change of each parallel steel wire rope 3 of the lifting device is tested, that is, when the lifting device is in an unloaded state, the lifting device connected to the lifting appliance 6 is adjusted to a horizontal state, that is, the actual lifting length of each steel wire rope 3 is adjusted to be consistent, then the steel wire rope 3 is synchronously wound and unwound under a load state to lift the lifting appliance, according to the inclination of the lifting appliance, the actual lifting length change amount of each steel wire rope 3 after the unloaded state changes to the load state is judged, the actual lifting length change amount of the large deflection steel wire rope is large, and the actual lifting length change amount of the small deflection steel wire rope is small. Then the self-adaptive steel wire rope deflection compensation device is connected in series between the small deflection steel wire rope and the fixed base 2, and the compensation distance of the deflection compensation device is adjusted by screwing the adjusting nut 11 according to the actual compensation needs, when the lifting device is in an unloaded state, the lifting device connected to the lifting appliance 6 is adjusted to a horizontal state, with the loading of the lifting appliance 6, due to the deflection difference between the multiple parallel steel wire ropes 3 of the lifting device, the originally curved rope body is straightened under the force of the steel wire rope 3 with large deflection, the actual lifting length change amount of the small deflection steel wire rope is small, at this time the self-adaptive steel wire rope 3 deflection compensation device is automatically elongated under the load, the actual lifting length of the small deflection steel wire rope is compensated, the actual lifting length of the small deflection steel wire rope is basically consistent with the actual lifting length of the other steel wire ropes 3, and the lifting appliance 6 can still maintain a horizontal state, ensuring the balanced lifting of the lifting device under different loads.
[0037] The specific structure of the self-adaptive steel wire rope deflection compensation device of the present application is the same as that of the self-adaptive steel wire rope deflection compensation device used in the above lifting device, which will not be described here.
[0038] Of course, the self-adaptive steel wire rope deflection compensation device and the lifting device of the present application are not limited to the above-mentioned embodiments, and several other embodiments of the self-adaptive steel wire rope deflection compensation device and the lifting device based on the design concept of the present application are also provided, as follows:
[0039] In other embodiments, unlike the above embodiments, the head end of the guide bolt can not be fixed on the second connecting plate, and the second connecting plate can also be guided and installed on the guide bolt, so that the second connecting plate can move along the guide bolt.
[0040] In other embodiments, unlike the above embodiments, the first connecting plate and the second connecting plate can not be hingedly provided with the first connecting member and the second connecting member, and the first connecting plate and the second connecting plate can be directly fixedly connected with the steel wire rope and the fixed base, respectively.
[0041] In other embodiments, different from the above embodiments, the spacer sleeve can not be arranged between the guide bolt and the spring, and a spring which is not affected by the elastic performance in the fully compressed state can be selected. In other embodiments, different from the above embodiments, the guide bolt can not be provided with two, but other numbers, such as four, five, etc.
[0042] The above is only a preferred embodiment of the present application, and is not used to limit the present application. The patent protection scope of the present application is subject to the claims, and any equivalent structural changes made by using the content of the specification and drawings of the present application should also be included in the protection scope of the present application.
Claims
1. A lifting device comprising multiple parallel lifting wire ropes (3), each wire rope (3) being connected between a drum (1) and a fixed foundation (2), characterized in that: It also includes an adaptive wire rope deflection compensation device, wherein the wire rope (3) includes a small deflection wire rope whose deflection is less than that of other wire ropes (3) under no-load conditions, and the adaptive wire rope deflection compensation device is connected in series between the end of the small deflection wire rope away from the drum (1) and the fixed foundation (2). The adaptive wire rope deflection compensation device includes a first connecting plate (7), a second connecting plate (8), a guide bolt (9), a spring (12), and an adjusting nut (11). The first connecting plate (7) and the second connecting plate (8) are arranged parallel to each other along the extension direction of the reference axis. The reference axis coincides with the extension axis of the small deflection wire rope under load. The first connecting plate (7) is connected to the small deflection wire rope (3), and the second connecting plate (8) is connected to the fixed foundation (2). The guide bolt (9) passes perpendicularly through the second connecting plate (8) and the first connecting plate (7) in a direction parallel to the reference axis and is threaded into the adjusting nut (11). The first connecting plate (7) is guided and mounted on the guide bolt (9) in a direction parallel to the reference axis. The spring (12) is sleeved on the guide bolt (9) between the first connecting plate (7) and the adjusting nut (11). One end of the spring (12) is pressed against the adjusting nut (11), and the other end is pressed against the first connecting plate (7). The spring (12) is used to apply an elastic force close to the second connecting plate (8) to the first connecting plate (7). The adjusting nut (11) is used to adjust the magnitude of the elastic force to meet the deflection compensation requirements.
2. The lifting equipment according to claim 1, characterized in that, The bolt head of the guide bolt (9) is engaged with the second connecting plate (8) for a stop fit. One end of the guide bolt (9) with the bolt head is fixed to the second connecting plate (8) by threaded engagement with the fixing nut (10).
3. The lifting equipment according to claim 1, characterized in that, A spacer (13) is also provided between the spring (12) and the guide bolt (9). The length of the spacer (13) is less than the length of the spring (12). The spacer (13) is used to support the spring (12) between the first connecting plate (7) and the adjusting nut (11) to prevent the spring (12) from being over-compressed.
4. The lifting equipment according to any one of claims 1-3, characterized in that, A first connecting member (14) is hinged to the plate surface of the first connecting plate (7) away from the second connecting plate (8). The hinge axis of the first connecting plate (7) and the first connecting member (14) is perpendicular to the reference axis. The first connecting member (14) is used to fix the small deflection wire rope (3). A second connecting member (15) is hinged to the plate surface of the second connecting plate (8) away from the first connecting plate (7). The hinge axis of the second connecting plate (8) and the second connecting member (15) is perpendicular to the reference axis. The second connecting member (15) is used to fix the fixed foundation (2).
5. The lifting equipment according to claim 4, characterized in that, The guide bolts (9) are multiple and are evenly arranged in parallel around the reference axis. Both the first connecting plate (7) and the second connecting plate (8) are provided with connecting ears. One end of the first connecting member (14) is hinged to the connecting ear on the first connecting plate (7), and the other end is fixedly and detachably connected to the small deflection steel wire rope. One end of the second connecting member (15) is hinged to the connecting ear on the second connecting plate (8), and the other end is fixedly connected to the fixed foundation (2).
6. An adaptive wire rope deflection compensation device for lifting equipment, characterized in that, The device includes a first connecting plate (7), a second connecting plate (8), a guide bolt (9), a spring (12), and an adjusting nut (11). The adaptive wire rope deflection compensation device is connected in series between the wire rope (3) and the fixed foundation (2). The first connecting plate (7) and the second connecting plate (8) are arranged parallel to each other along the extension direction of the reference axis. The reference axis coincides with the extension axis of the small deflection wire rope under load. The first connecting plate (7) is used to connect to the wire rope (3), and the second connecting plate (8) is used to connect to the fixed foundation (2). The guide bolt (9) passes perpendicularly through the second connecting plate in a direction parallel to the reference axis. The plate (8) and the first connecting plate (7) are threaded together with the adjusting nut (11). The first connecting plate (7) is guided and mounted on the guide bolt (9) in a direction parallel to the reference axis. The spring (12) is sleeved on the guide bolt (9) between the first connecting plate (7) and the adjusting nut (11). One end of the spring (12) is pressed against the adjusting nut (11), and the other end is pressed against the first connecting plate (7). The spring (12) is used to apply an elastic force close to the second connecting plate (8) to the first connecting plate (7). The adjusting nut (11) is used to adjust the elastic force to adapt to the deflection compensation requirements.
7. The adaptive wire rope deflection compensation device according to claim 6, characterized in that, The bolt head of the guide bolt (9) is engaged with the second connecting plate (8) for a stop fit. One end of the guide bolt (9) with the bolt head is fixed to the second connecting plate (8) by threaded engagement with the fixing nut (10).
8. The adaptive wire rope deflection compensation device according to claim 6, characterized in that, A spacer (13) is also provided between the spring (12) and the guide bolt (9). The length of the spacer (13) is less than the length of the spring (12). The spacer (13) is used to support the spring (12) between the first connecting plate (7) and the adjusting nut (11) to prevent the spring (12) from being over-compressed.
9. The adaptive wire rope deflection compensation device according to claim 6, 7, or 8, characterized in that, A first connecting member (14) is hinged to the plate surface of the first connecting plate (7) away from the second connecting plate (8). The hinge axis of the first connecting plate (7) and the first connecting member (14) is perpendicular to the reference axis. The first connecting member (14) is used to fix the small deflection wire rope (3). A second connecting member (15) is hinged to the plate surface of the second connecting plate (8) away from the first connecting plate (7). The hinge axis of the second connecting plate (8) and the second connecting member (15) is perpendicular to the reference axis. The second connecting member (15) is used to fix the fixed foundation (2).
10. The adaptive wire rope deflection compensation device according to claim 9, characterized in that, The guide bolts (9) are multiple and are evenly arranged in parallel around the reference axis. Both the first connecting plate (7) and the second connecting plate (8) are provided with connecting ears. One end of the first connecting member (14) is hinged to the connecting ear on the first connecting plate (7), and the other end is fixedly and detachably connected to the small deflection steel wire rope. One end of the second connecting member (15) is hinged to the connecting ear on the second connecting plate (8), and the other end is fixedly connected to the fixed foundation (2).
Citation Information
Patent Citations
Portal crane with anti-swing function
CN216638715U
Device for releasing tension of steel cable
CN202321873U
Ware wire rope automatic compensating device is exempted from to climb in manned transportation
CN206872219U