阅读说明：本技术 直升机吊索法作业专用配重球 (Special counterweight ball for helicopter sling method operation ) 是由 吴维国 吴建军 杨金刚 王铁军 李帅 刘丽元 亢国娜 孙国毕 王楠 于 2020-06-01 设计创作，主要内容包括：本发明提供了一种直升机吊索法作业专用配重球,包括：主半球,设置有第一径向槽和凸台,凸台的一端与主半球的底面连接,第一径向槽沿主半球的直径方向设置在底面上,且第一径向槽贯穿凸台并与凸台的另一端外侧连通；压板,呈圆环状结构,压板与主半球的底面能拆卸地连接,压板的一侧端面能够将吊索压紧于第一径向槽中,凸台能够穿过压板的中部环空并置于压板的另一侧；副半球,设置有与凸台配合插接的凹槽,副半球与压板的另一侧端面连接。本发明的有益效果是,采用球体作为吊索法作业的配重装置,流线型好,风阻系数低,且球体为无极结构,不会在使用中向某一方向有明显的偏转,能够达到提高直升机吊索法作业安全性的目的。(The invention provides a counterweight ball special for helicopter sling method operation, which comprises: the main hemisphere is provided with a first radial groove and a boss, one end of the boss is connected with the bottom surface of the main hemisphere, the first radial groove is arranged on the bottom surface along the diameter direction of the main hemisphere, and the first radial groove penetrates through the boss and is communicated with the outer side of the other end of the boss; the pressing plate is of a circular ring structure and detachably connected with the bottom surface of the main hemisphere, the end surface of one side of the pressing plate can press the sling in the first radial groove, and the boss can penetrate through the middle annular space of the pressing plate and is arranged on the other side of the pressing plate; and the auxiliary hemisphere is provided with a groove which is matched and spliced with the boss, and the auxiliary hemisphere is connected with the end face of the other side of the pressing plate. The invention has the advantages that the sphere is adopted as the counterweight device for the operation of the suspension cable method, the streamline is good, the wind resistance coefficient is low, the sphere is of an electrodeless structure, the sphere cannot obviously deflect to a certain direction in use, and the purpose of improving the safety of the operation of the suspension cable method of the helicopter can be achieved.)

1. The utility model provides a special counter weight ball of helicopter hoist cable method operation which characterized in that includes:

the main hemisphere (1) is provided with a first radial groove (11) and a boss (12), one end of the boss (12) is connected with the bottom surface of the main hemisphere (1), the first radial groove (11) is arranged on the bottom surface along the diameter direction of the main hemisphere (1), and the first radial groove (11) penetrates through the boss (12) and is communicated with the outer side of the other end of the boss (12);

the pressing plate (2) is of a circular ring structure, the pressing plate (2) is detachably connected with the bottom surface of the main hemisphere (1), the sling (6) can be tightly pressed in the first radial groove (11) through the end surface of one side of the pressing plate (2), and the boss (12) can penetrate through the middle annular space of the pressing plate (2) and is placed on the other side of the pressing plate (2);

the auxiliary hemisphere (3) is provided with a groove (31) which is matched and spliced with the boss (12), and the auxiliary hemisphere (3) is connected with the end face of the other side of the pressing plate (2).

2. The counterweight ball special for helicopter sling method work according to claim 1, characterized in that one side end surface of the pressure plate (2) is provided with a second radial groove (21), and the first radial groove (11) and the second radial groove (21) are matched to form a radial through groove for accommodating the sling (6).

3. The counterweight ball special for helicopter sling method operation is characterized in that a plurality of first fixing threaded holes (13) are arranged on the main hemisphere (1), a plurality of first fixing threaded matching holes (22) are arranged on the pressing plate (2), and the plurality of first fixing threaded matching holes (22) are matched with the plurality of first fixing threaded holes (13) in a one-to-one correspondence mode.

4. The counterweight ball special for helicopter sling method operation according to claim 1, wherein the outer circumference of the boss (12) is provided with an external thread, and the inner circumference of the groove (31) is provided with an internal thread matched with the external thread.

5. The counterweight ball special for helicopter sling method operation is characterized in that a plurality of second fixing threaded holes (14) are arranged at the end face of the other end of the boss (12), a plurality of second fixing threaded matching holes (32) are arranged on the auxiliary hemisphere (3), and the plurality of second fixing threaded holes (14) are matched with the plurality of second fixing threaded matching holes (32) in a one-to-one correspondence mode.

6. The helicopter sling method work special purpose counterweight ball of claim 2, wherein both ends of said radial through slot are provided with chamfers.

7. The helicopter sling method work special counterweight ball according to claim 1, further comprising two anti-slip hoops (4), wherein each anti-slip hoop (4) is connected with the sling (6), and the two anti-slip hoops (4) are arranged outside the two ends of the first radial groove (11) at intervals.

8. The counterweight ball special for helicopter sling method operation according to claim 7, wherein the anti-slip anchor ear (4) comprises an upper anchor ear (41) and a lower anchor ear (42), the upper anchor ear (41) and the lower anchor ear (42) are semi-annular, one end of the upper anchor ear (41) is hinged with one end of the lower anchor ear (42), and the other end of the upper anchor ear (41) is detachably connected with the other end of the lower anchor ear (42).

9. The counterweight ball special for helicopter sling method operation is characterized in that the inner ring of the upper anchor ear (41) and the inner ring of the lower anchor ear (42) are both provided with rubber layers.

10. The counterweight ball special for helicopter sling method operation according to claim 7, characterized in that the main hemisphere (1) is provided with a through hole (15) arranged in parallel with the first radial groove (11), the counterweight ball further comprises a connecting steel wire, the connecting steel wire is arranged in the through hole (15) in a penetrating way, and two ends of the connecting steel wire are respectively connected with two anti-skidding anchor ears (4) arranged at intervals.

Technical Field

The invention relates to a counterweight ball special for helicopter sling method operation.

Background

With the rise of voltage level and the progress of technical means, the helicopter has larger and deeper electric power operation range and deeper operation depth, and participates in the construction, operation and maintenance of a power grid more and more, and some new operation modes are generated at the same time.

The helicopter sling method is a common operation mode for a helicopter to participate in electric power operation at present. The sling hangs goods and materials, personnel to the designated position after unhook, and the helicopter flies apart, because lack of weight after the unhook, helicopter flying speed is very fast again, and the sling has the danger of drawing into the tail-rotor, and it is fatal to the helicopter to have the foreign matter to draw into the tail-rotor.

At present, the site generally hangs the heavy objects on the site on slings. Due to the randomness of the weights, there are many risks.

1) The heavy object is difficult to be connected with the sling, and the heavy object generally has no special interface on a construction site, so that the heavy object is difficult to be connected with the sling.

2) The connecting part is not firmly connected with the sling, so that people are easily injured by falling, the counterweight function is lost, and new danger is brought.

3) The wind resistance of the heavy object is large, so that the counterweight effect cannot be achieved, and the sling is lifted due to the wind resistance, so that danger is caused.

4) Weight is not easy to control, the lifting weight of the helicopter is influenced by overweight of the balance weight, the balance weight is lightened, and the danger of rolling into a tail rotor still exists.

5) The corners of the weight are clearly frayed or cut into the sling.

6) The sharp weight may injure field workers or wire.

7) When the helicopter sling method live working is carried out, the heavy object does not meet the requirement of insulating property, and discharge is caused.

Disclosure of Invention

The invention provides a counterweight ball special for helicopter sling method operation, which aims to improve the safety of helicopter sling method operation.

The technical scheme adopted by the invention for solving the technical problems is as follows: a special counterweight ball for helicopter sling method operation comprises: the main hemisphere is provided with a first radial groove and a boss, one end of the boss is connected with the bottom surface of the main hemisphere, the first radial groove is arranged on the bottom surface along the diameter direction of the main hemisphere, and the first radial groove penetrates through the boss and is communicated with the outer side of the other end of the boss; the pressing plate is of a circular ring structure and detachably connected with the bottom surface of the main hemisphere, the end surface of one side of the pressing plate can press the sling in the first radial groove, and the boss can penetrate through the middle annular space of the pressing plate and is arranged on the other side of the pressing plate; and the auxiliary hemisphere is provided with a groove which is matched and spliced with the boss, and the auxiliary hemisphere is connected with the end face of the other side of the pressing plate.

Furthermore, a second radial groove is formed in the end face of one side of the pressing plate, and the first radial groove and the second radial groove are matched to form a radial through groove for containing the sling.

Furthermore, be provided with a plurality of first fixed screw hole on the main hemisphere, be provided with a plurality of first fixed screw mating holes on the clamp plate, a plurality of first fixed screw mating holes and a plurality of first fixed screw hole one-to-one cooperation.

Further, the boss periphery is provided with the external screw thread, and the internal periphery of recess is provided with the internal thread with external screw thread fit.

Furthermore, the end face of the other end of the boss is provided with a plurality of second fixing threaded holes, the auxiliary hemisphere is provided with a plurality of second fixing threaded matching holes, and the plurality of second fixing threaded holes are matched with the plurality of second fixing threaded matching holes in a one-to-one correspondence mode.

Further, both ends of the radial through groove are provided with chamfers.

Furthermore, the special counterweight ball for helicopter sling method operation further comprises two anti-slip anchor ears, each anti-slip anchor ear is connected with a sling, and the two anti-slip anchor ears are arranged at the outer sides of the two ends of the first radial groove at intervals.

Furthermore, the anti-skidding hoop comprises an upper hoop and a lower hoop, the upper hoop and the lower hoop are semi-annular, one end of the upper hoop is hinged with one end of the lower hoop, and the other end of the upper hoop is detachably connected with the other end of the lower hoop.

Furthermore, the inner ring of the upper anchor ear and the inner ring of the lower anchor ear are both provided with rubber layers.

Furthermore, the main hemisphere is provided with the perforating hole with first radial groove parallel arrangement, and helicopter hoist cable method operation special counterweight ball is still including connecting the steel wire, and it wears to establish in the perforating hole to connect the steel wire, and the both ends of connecting the steel wire are connected with two anti-skidding staple bolts that the interval set up respectively.

The invention has the advantages that the sphere is adopted as the counterweight device for the operation of the suspension cable method, the streamline is good, the wind resistance coefficient is low, the sphere is of an electrodeless structure, the sphere cannot obviously deflect to a certain direction in use, and the purpose of improving the safety of the operation of the suspension cable method of the helicopter can be achieved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a counterweight ball specially used for helicopter sling method operation in the embodiment of the invention;

FIG. 2 is a schematic view of a main hemisphere;

FIG. 3 is a schematic view of the platen;

FIG. 4 is a schematic view of a sub-hemisphere;

fig. 5 is a schematic structural view of the anti-slip anchor ear.

Reference numbers in the figures: 1. a main hemisphere; 11. a first radial slot; 12. a boss; 13. a first fixing threaded hole; 14. a second fixing threaded hole; 15. a through hole; 2. pressing a plate; 21. a second radial slot; 22. a first fixed thread engagement hole; 3. a secondary hemisphere; 31. a groove; 32. fixing the threaded matching hole; 33. a positioning groove; 4. an anti-slip hoop; 41. an anchor ear is arranged; 42. a lower hoop; 5. an insulating rubber cushion layer; 6. a sling.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 5, the embodiment of the invention provides a counterweight ball special for helicopter sling method operation, which comprises a main hemisphere 1, a pressing plate 2 and an auxiliary hemisphere 3. The main hemisphere 1 is provided with first radial groove 11 and boss 12, and the one end of boss 12 is connected with the bottom surface of main hemisphere 1, and first radial groove 11 sets up on the bottom surface along the diameter direction of main hemisphere 1, and first radial groove 11 runs through boss 12 and communicates with the other end outside of boss 12. The pressing plate 2 is of a circular ring structure, the pressing plate 2 is detachably connected with the bottom surface of the main hemisphere 1, the sling 6 can be tightly pressed in the first radial groove 11 through the end face of one side of the pressing plate 2, and the boss 12 can penetrate through the middle annular space of the pressing plate 2 and is arranged on the other side of the pressing plate 2. The auxiliary hemisphere 3 is provided with a groove 31 which is matched and spliced with the boss 12, and the auxiliary hemisphere 3 is connected with the end face of the other side of the pressing plate 2.

The sphere is adopted as a counterweight device for operation by a sling method, the streamline is good, the wind resistance coefficient is low, the sphere is of an electrodeless structure, obvious deflection to a certain direction in use can not be caused, and the purpose of improving the safety of the operation by the sling method of the helicopter can be achieved.

The first radial groove 11 penetrates the boss 12 and communicates with the outside of the other end of the boss 12, that is, the first radial groove 11 extends from the other end of the boss 12 toward the bottom surface of the main hemisphere 1 and forms a groove provided in the diameter direction at the bottom surface of the main hemisphere 1, so that the suspension cable 6 can pass through the boss 12 and be placed at the bottom surface position.

One side end face of the pressure plate 2 is provided with a second radial groove 21, and the first radial groove 11 and the second radial groove 21 are matched to form a radial through groove for accommodating the sling 6. The radial through groove can be used for placing the suspension ropes 6, so that the suspension ropes 6 are tightly pressed at the radial through groove by the pressing plate 2, and the balance weight ball and the suspension ropes 6 are prevented from moving. It should be noted that the radial through groove is arranged along the diameter of the counterweight ball and passes through the position of the circle center.

Be provided with a plurality of first fixed screw hole 13 on the main hemisphere 1, be provided with a plurality of first fixed screw mating holes 22 on the clamp plate 2, a plurality of first fixed screw mating holes 22 and a plurality of first fixed screw hole 13 one-to-one cooperation.

When the device is installed, the first fixing thread matching hole 22 and the first fixing thread hole 13 are connected through screws, the pressing plate 2 is fixed at the bottom surface of the main hemisphere 1, the pressing plate 2 is enabled to press the sling 6, and meanwhile the boss 12 penetrates through the annular space and can be connected with the auxiliary hemisphere 3.

In this embodiment, the outer circumference of the boss 12 is provided with an external thread, and the inner circumference of the groove 31 is provided with an internal thread engaged with the external thread. When the pressing plate is installed, the boss 12 is connected with the groove 31 through threads, the auxiliary hemisphere 3 is pressed on the other side of the pressing plate 2, the pressing plate 2 can be limited, and meanwhile, reliable extrusion force is provided for the pressing plate 2 to press the sling 6.

Preferably, a plurality of second fixing threaded holes 14 are formed in the end face of the other end of the boss 12, a plurality of second fixing threaded matching holes 32 are formed in the auxiliary hemisphere 3, and the plurality of second fixing threaded holes 14 are matched with the plurality of second fixing threaded matching holes 32 in a one-to-one correspondence manner. The second fixing threaded hole 14 and the second fixing threaded matching hole 32 are arranged, and the second fixing threaded hole 14 and the second fixing threaded matching hole 32 can be connected through screws so as to achieve the purpose of fixing the auxiliary hemisphere 3 and the pressing plate 2.

In this embodiment, the both ends that lead to the groove radially all are provided with the chamfer. Namely, the upper and lower ends of the first radial groove 11 and the second radial groove 21 are provided with chamfers, so that the sling 6 can be prevented from being scratched and worn.

It should be noted that the auxiliary hemisphere 3 is provided with a positioning groove 33, which is used for cooperating with the pressing plate 2 and positioning the pressing plate 2. The main hemisphere 1, the pressing plate 2 and the auxiliary hemisphere 3 are connected to form a complete sphere structure, wherein the main hemisphere 1 is a half of a sphere, and the pressing plate 2 and the auxiliary hemisphere 3 form the other half of the sphere.

As shown in fig. 1 and 5, the helicopter sling method operation dedicated counterweight ball further comprises two anti-slip hoops 4, each anti-slip hoop 4 is connected with a sling 6, and the two anti-slip hoops 4 are arranged outside the two ends of the radial through groove at intervals. The anti-skidding hoop 4 is arranged to limit the vertical sliding of the counterweight ball and prevent the counterweight ball from falling off from the sling 6.

As shown in fig. 5, the anti-slip hoop 4 includes an upper hoop 41 and a lower hoop 42, both the upper hoop 41 and the lower hoop 42 are semi-annular, a space for accommodating the suspension cable 6 is formed between the upper hoop 41 and the lower hoop 42, one end of the upper hoop 41 is hinged to one end of the lower hoop 42, and the other end of the upper hoop 41 is detachably connected to the other end of the lower hoop 42. The other end of the upper hoop 41 and the other end of the lower hoop 42 are opened during working, so that the sling 6 is arranged in the anti-skidding hoop 4, and then the other end of the upper hoop 41 is fixed with the lower hoop 42, so that the anti-skidding hoop 4 clamps the sling 6 to achieve the limiting effect.

Preferably, the inner ring of the upper anchor ear 41 and the inner ring of the lower anchor ear 42 are both provided with a rubber layer. The rubber layer is arranged, so that the friction force between the anti-skidding hoop 4 and the sling 6 can be increased, and the limiting effect is firmer. In the embodiment, the outside of the connecting section of the sling 6 opposite to the counterweight ball is coated with the insulating rubber cushion layer 5, so that the connecting friction force between the anti-skidding hoop 4 and the sling 6 can be increased. Of course, when the diameter of the sling 6 is changed, the insulating rubber cushions 5 with different thicknesses can be selected, so that the sling 6 and the counterweight ball are matched tightly and reliably all the time.

The other end of the upper anchor ear 41 and the other end of the lower anchor ear 42 are detachably connected through a limit bolt or a separation-proof energy-saving manner. The other end of the middle and upper anchor ear 41 and the other end of the lower anchor ear 42 can be prevented from falling off from the bolt after the nut is loosened by arranging the limiting bolt, so that the falling danger of the device is avoided.

Further, main hemisphere 1 is provided with the perforating hole 15 with first radial groove 11 parallel arrangement, and the special counter weight ball of helicopter hoist cable method operation still includes the connecting wire, and the connecting wire is worn to establish in perforating hole 15, and the both ends of connecting wire are connected with two anti-skidding staple bolts 4 that the interval set up respectively.

Through setting up the anti-skidding staple bolt 4 of both sides about the steel wire will be in the same place through linking together, can all receive another anti-skidding staple bolt 4 restriction after any anti-skidding staple bolt 4 drops, make the whole of two anti-skidding staple bolts 4 formation can not drop and cause danger.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

the sphere is adopted as a counterweight device for operation by a sling method, the streamline is good, the wind resistance coefficient is low, and the sphere is of an electrodeless structure and cannot obviously deflect to a certain direction in use.

The bolt is mainly matched, the antiskid hoop is fixed, and the concave-convex table is matched for assistance, so that multiple protection is realized, and the reliable connection is ensured.

The anti-slip anchor ear can effectively prevent the vertical sliding of the counterweight ball, and the anti-slip anchor ear is provided with the anti-slip section, so that the nut can be prevented from falling off after loosening.

When the diameter of the rope changes, the insulating rubber pads with different thicknesses can be selected, so that the matching is always tight and reliable.

The sling method counterweight ball can provide powerful support for the flight safety of the helicopter, ensure that the sling does not swing along with the wind or swing in a small amplitude in the flight process, help the helicopter to avoid the accident that the sling hits the tail rotor in the flight, and improve the operation safety of the helicopter in a sling method.

The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features, the technical schemes and the technical schemes can be freely combined and used.