CN204992423U - Transmission line plays portable hand hank of heavy work and grinds - Google Patents

Abstract

The utility model portable hand winch for lifting operation of power transmission lines comprises a support frame, a winding barrel, a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are both rotatably mounted on the supporting frame. The bobbin is fixed on the first shaft, the first shaft is provided with a first gear, the second shaft is provided with a second gear, and the first gear and the second gear mesh with each other, so At least one of the two ends of the first rotating shaft and at least one of the two ends of the second rotating shaft are exposed and have a polygonal cross-section for mating connection with the hand crank. The utility model is simple in structure, easy to manufacture, and convenient to use. Three different gears can be set by adjusting the diameter of each gear to effectively control the lifting speed and weight of lifting heavy objects, and can overcome the lack of fixed points and laborious lifting of traditional manpower pulling wires. And the disadvantages such as poor security, has the advantages of portability, labor saving, easy operation, high reliability, and strong practicability.

Description

Portable hand winch for power transmission line lifting operation

technical field

The utility model relates to lifting equipment, in particular to a portable hand winch for lifting operation of transmission lines.

Background technique

The lifting operation of transmission line is an important part of line power outage operation or live maintenance, and it is very important to ensure the safety and smooth progress of line maintenance work.

In the existing maintenance work, the lifting is generally done by manpower. This method is labor-intensive, labor-intensive, and lacks a reliable anchor point. It is difficult to control the speed of the rope during operation, which brings inconvenience to the lifting of heavy objects in the maintenance work, and it is difficult to There are potential safety hazards, which threaten the personal safety and equipment safety of lifting operators, and also waste a lot of manpower and material resources.

Therefore, how to realize the portable, fast, labor-saving, controllable, reliable and safe lifting operation is a topic worthy of further study.

Utility model content

The technical problem to be solved by the utility model is to provide a portable, labor-saving, easy-to-operate, high-reliability, and practical portable hand winch for lifting operations on transmission lines.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: a portable hand winch for power transmission line lifting operation, including a support frame, a winding drum, a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are all rotatably mounted on the support frame, the bobbin is fixed on the first shaft, the first shaft is provided with a first gear, the second shaft is provided with a second gear, and the The first gear and the second gear are meshed with each other, at least one of the two ends of the first rotating shaft and at least one of the two ends of the second rotating shaft are exposed and have a polygonal cross-section. To be connected with the hand crank.

Further, a third rotating shaft is also rotatably installed on the support frame, a third gear is provided on the second rotating shaft, a fourth gear is provided on the third rotating shaft, and the third gear and the fourth gear are mutually Engagement, at least one of the two ends of the third rotating shaft is exposed and has a polygonal cross-section, which is used for mating connection with the hand crank.

Further, the third rotating shaft is also provided with a fifth gear, and a first threaded through hole is opened at the position corresponding to the fifth gear on the support frame, and the first threaded through hole is internally threaded with a backstop bolt , when the backstop bolt is screwed in and out in the first threaded through hole, the end of the backstop bolt close to the fifth gear can protrude in and out from the tooth slot of the fifth gear.

Further, the support frame is a rectangular frame structure formed by connecting two vertical supports and two horizontal supports, and the two vertical supports of the support frame respectively have a first connecting block protruding horizontally outwards, so The first rotating shaft is installed on the two first connecting blocks, the second rotating shaft and the third rotating shaft are installed on the two vertical supports of the support frame, and the third rotating shaft is located on the second rotating shaft Above, the first rotating shaft, the second rotating shaft and the third rotating shaft are arranged parallel to each other and horizontally, and the first threaded through hole is provided on the upper side cross bracket of the support frame.

Further, the support frame is also provided with a binding mechanism for binding the portable hand winch for lifting operation of the transmission line to the transmission line tower.

Further, the binding mechanism includes a second connection block, a third connection block, a screw rod and a binding rope, the second connection block and the third connection block are both hinged on the support frame, and the second connection block A second threaded through hole is opened on the top, and the screw rod is screwed into the second threaded through hole. A through hole and more than one threaded hole communicated with the through hole are opened on the third connecting block. One end of the binding rope passes through the through hole and is fixed by a set bolt screwed in the threaded hole, the other end of the binding rope is connected to one end of the screw, and the other end of the screw is screwed with a lock nut .

Further, the support frame is a rectangular frame structure formed by connecting two vertical supports and two horizontal supports, the two horizontal supports of the support frame are respectively provided with the binding mechanism, and the horizontal The two ends of the bracket respectively have protruding parts protruding horizontally outwards, and the second connecting block and the third connecting block are respectively hinged on the two protruding parts of the horizontal bracket of the supporting frame.

Further, both the second connection block and the third connection block have a degree of freedom of rotation in the horizontal plane, the axes of the second threaded through hole and the through hole are parallel to the horizontal plane, and the second connection block and the support The protrusions of the cross brackets of the frame are hingedly connected by a chain.

Further, the part of the cross bracket of the support frame between the two protruding parts is provided with a slot corresponding to the shape of the binding part of the transmission line tower.

The beneficial effects of the utility model are: the utility model is simple in structure, easy to manufacture, and convenient to use. Three different gear positions can be set by adjusting the diameter of each gear (according to the principle of torque action). Turning the corresponding shaft can effectively control the lifting speed and weight of the heavy object, and the operator can control it flexibly, which can overcome the shortcomings of traditional manpower cable lifting such as lack of fixed points, laborious and poor safety, etc. It is portable, labor-saving, easy to operate, The advantages of high reliability and strong practicability can greatly improve the efficiency, safety and reliability of power transmission line lifting operations, and have important promotion value and practical significance.

Description of drawings

Fig. 1 is a front view of an embodiment of the utility model.

FIG. 2 is a top view of FIG. 1 .

Fig. 3 is a left side view of Fig. 1 .

Fig. 4 is a right side view of Fig. 1 .

The marks of each component in the accompanying drawings are: 1 support frame, 11 first threaded through hole, 12 backstop bolt, 13 first connecting block, 14 protrusion, 15 card slot, 2 bobbin, 3 first rotating shaft, 31 First gear, 4 second rotating shaft, 41 second gear, 42 third gear, 5 third rotating shaft, 51 fourth gear, 52 fifth gear, 61 second connecting block, 611 second threaded through hole, 612 chain, 62 the third connecting block, 621 through hole, 622 threaded hole, 623 set bolt, 63 screw rod, 64 tie rope, 65 lock nut.

detailed description

Below in conjunction with accompanying drawing, the utility model will be further described:

See Figure 1.

The portable hand-cranked winch for power transmission line lifting operation according to an embodiment of the utility model includes a support frame 1, a bobbin 2, a first rotating shaft 3 and a second rotating shaft 4, and the first rotating shaft 3 and the second rotating shaft 4 are both Rotationally installed on the support frame 1, the bobbin 2 is fixed on the first rotating shaft 3, the first rotating shaft 3 is provided with a first gear 31, and the second rotating shaft 4 is provided with a first Two gears 41, the first gear 31 and the second gear 41 mesh with each other, at least one of the two ends of the first rotating shaft 3, at least one of the two ends of the second rotating shaft 4 Both parts are exposed and the cross-section is polygonal, which is used to cooperate with the hand crank.

Referring to FIG. 1 , in this embodiment, a third rotating shaft 5 is also rotatably mounted on the support frame 1 , a third gear 42 is provided on the second rotating shaft 4 , and a fourth gear is provided on the third rotating shaft 5 51, the third gear 42 and the fourth gear 51 mesh with each other, at least one of the two ends of the third rotating shaft 5 is exposed and has a polygonal cross-section, which is used to cooperate with the hand crank. Using the above technical scheme, three different gears can be set by adjusting the diameter of each gear (according to the principle of torque action). When in use, according to the need, the lifting speed of the heavy object can be effectively controlled by turning the corresponding shaft through the hand crank. with weight.

Referring to Fig. 1, in this embodiment, a fifth gear 52 is also provided on the third rotating shaft 5, and a first threaded through hole 11 is opened at a position corresponding to the fifth gear 52 on the support frame 1. A threaded through hole 11 is internally threaded with a backstop bolt 12. When the backstop bolt 12 is screwed in and out in the first threaded through hole 11, the backstop bolt 12 close to the fifth gear 52 One end of can extend in and out from the tooth groove of the fifth gear 52 . In this way, by adjusting the position of the backstop bolt 12, the fifth gear 52 can be controlled to rotate smoothly and stop, and then the first rotating shaft 3 can be controlled to rotate smoothly and stop, so as to achieve the purpose of lifting or backstop locking, and can achieve the purpose of lifting heavy objects. Lifting up and down and providing support for personnel to temporarily rest and fix gears.

Referring to Fig. 1, Fig. 3 and Fig. 4, in the present embodiment, the support frame 1 is a rectangular frame structure formed by connecting two vertical supports and two horizontal supports, and the two vertical supports of the support frame 1 are respectively There is a first connecting block 13 protruding horizontally, the first rotating shaft 3 is installed on the two first connecting blocks 13, and the second rotating shaft 4 and the third rotating shaft 5 are installed on the support frame 1, and the third rotating shaft 5 is located above the second rotating shaft 4, the first rotating shaft 3, the second rotating shaft 4 and the third rotating shaft 5 are arranged parallel to each other and horizontally, the first rotating shaft A threaded through hole 11 is provided on the upper side bracket of the support frame 1 .

In this embodiment, the support frame 1 is also provided with a binding mechanism for binding the portable hand winch for lifting operation of the transmission line to the transmission line tower. During specific implementation, referring to Fig. 2, the binding mechanism includes a second connecting block 61, a third connecting block 62, a screw rod 63 and a binding rope 64, and the second connecting block 61 and the third connecting block 62 are hinged on the On the support frame 1, the second connecting block 61 is provided with a second threaded through hole 611, the screw 63 is screwed into the second threaded through hole 611, and the third connecting block 62 is provided with a A through hole 621 and more than one threaded hole 622 communicated with the through hole 621, one end of the binding rope 64 passes through the through hole 621 and is fixed by a tightening bolt 623 screwed in the threaded hole 622. The other end of the rope 64 is connected to one end of the screw rod 63 , and the other end of the screw rod 63 is screwed with a locking nut 65 . During operation, the screw rod 63 is first loosened, then the tie rope 64 is surrounded on the transmission line tower (generally the bottom tower leg of the transmission line tower), and then the screw rod 63 is screwed on, and the tie rope 64 is continuously tightened by rotating the screw rod 63 effect, so as to realize the close fit and fixation between the utility model and the transmission line tower, the operation is convenient, fast, and the practicability is strong, which overcomes the problem that the traditional lifting device cannot be fixed due to the lack of a fixed site for anchoring the ground anchor, and realizes firmness and reliability fixed.

Referring to Fig. 2, during specific implementation, the support frame 1 is a rectangular frame structure formed by connecting two vertical brackets and two horizontal brackets, and the two horizontal brackets of the support frame 1 are respectively provided with the binding mechanism The two ends of the cross bracket of the support frame 1 respectively have protrusions 14 protruding horizontally outward, and the second connecting block 61 and the third connecting block 62 are hinged on the cross bracket of the support frame 1 one by one. On the two protrusions 14 of the Both the second connecting block 61 and the third connecting block 62 have a rotational degree of freedom in the horizontal plane, the axes of the second threaded through hole 611 and the through hole 621 are parallel to the horizontal plane, and the second connecting block 61 and the second connecting block 61 are connected to the horizontal plane. The protruding parts 14 of the horizontal brackets of the support frame 1 are hingedly connected by a chain 612 .

The part of the horizontal bracket of the support frame 1 between the two protrusions 14 is provided with a slot 15 corresponding to the shape of the binding part of the transmission line tower. Setting the card slot 15 can make the fit between the binding mechanism and the power transmission line tower higher and the connection stronger.

The hoisting rope of the utility model should use insulated ropes to ensure the safety of hoisting heavy objects in a live maintenance environment.

For the portable hand-cranked winch for power transmission line lifting operation according to an embodiment of the utility model, the operation process is as follows:

(1) Receive work tasks, carry out lifting operations according to work requirements, take on-site safety measures, and prepare safety tools, etc.;

(2) The safety equipment and other preparations are completed, and the portable hand-cranked winch for the lifting operation of the transmission line is debugged (whether it rotates smoothly, it is reliably locked, etc.), and the preparation work is completed after the test;

(3) The hoisting operation begins, and the operator on the tower climbs on the pole and hangs the bar on the tackle, and the auxiliary personnel under the tower fix the utility model firmly on the tower foot of the transmission line tower through the binding mechanism at the tower leg of the angle steel tower;

(4) The utility model is completed by hanging the block on the tower and fixing the tower under the tower, and the lifting objects are firmly connected by the hoisting rope;

(5) The operator on the tower commands and the auxiliary personnel under the tower operate the utility model to cooperate with lifting heavy objects. During the lifting process, the nonstop bolt can be used to realize continuous lifting or pause for rest. fixed;

(6) Carry out the operation on the tower and wait for the operation on the tower to be completed;

(7) After the operation on the tower is completed, the utility model is operated by the operator on the tower and the auxiliary personnel under the tower to cooperate with lowering the heavy objects;

(8) Remove the suspension blocks, hoisting ropes and the utility model on the tower, check the tools and utensils, check the work site, and finish the work task.

It should be understood that the examples and implementations described herein are only for illustration, and those skilled in the art can make various modifications or changes based on them, all of which belong to the protection scope of the present utility model without departing from the spirit of the utility model.

Claims (9)

1. transmission line hoisting operation Portable hand-operated wring grinder, it is characterized in that: comprise bracing frame (1), reel (2), first rotating shaft (3) and the second rotating shaft (4), described first rotating shaft (3) and the second rotating shaft (4) are all rotatably installed on support frame as described above (1), described reel (2) is fixed on described first rotating shaft (3), described first rotating shaft (3) is provided with the first gear (31), described second rotating shaft (4) is provided with the second gear (41), described first gear (31) and the second gear (41) engage each other, at least one end in two ends of described first rotating shaft (3), at least one end in two ends of the second rotating shaft (4) is all exposed and cross section is polygon, for being connected with hand crank.

2. transmission line hoisting operation Portable hand-operated wring grinder as claimed in claim 1, it is characterized in that: support frame as described above (1) is also rotatablely equipped with the 3rd rotating shaft (5), described second rotating shaft (4) is provided with the 3rd gear (42), described 3rd rotating shaft (5) is provided with the 4th gear (51), described 3rd gear (42) and the 4th gear (51) engage each other, at least one end in two ends of described 3rd rotating shaft (5) is exposed and cross section is polygon, for being connected with hand crank.

3. transmission line hoisting operation Portable hand-operated wring grinder as claimed in claim 2, it is characterized in that: described 3rd rotating shaft (5) is also provided with the 5th gear (52), the position of upper corresponding 5th gear (52) of support frame as described above (1) has the first tapped through hole (11), described first tapped through hole (11) internal thread is connected with check bolt (12), when the precession in described first tapped through hole (11) of described check bolt (12) is revolved and is moved back, one end of close described 5th gear (52) of described check bolt (12) can be stretched into and stretch out in the teeth groove of the 5th gear (52).

4. transmission line hoisting operation Portable hand-operated wring grinder as claimed in claim 3, it is characterized in that: support frame as described above (1) is the rectangular frame structure formed that to be connected with two lateral frames by two perpendicular supports, two perpendicular supports of support frame as described above (1) has respectively first contiguous block (13) horizontally outward stretched out, described first rotating shaft (3) is arranged on the first contiguous block (13) described in two, described second rotating shaft (4) and the 3rd rotating shaft (5) are installed on two perpendicular supports of support frame as described above (1), and described 3rd rotating shaft (5) is positioned at the top of described second rotating shaft (4), described first rotating shaft (3), second rotating shaft (4) and the 3rd rotating shaft (5) are parallel to each other and horizontal arrangement, described first tapped through hole (11) is located at the upper cross support of support frame as described above (1).

5. transmission line hoisting operation Portable hand-operated wring grinder as claimed in claim 1 or 2, is characterized in that: support frame as described above (1) is also provided with the binding mechanism for being tied to by described transmission line hoisting operation Portable hand-operated wring grinder on power transmission line column.

6. transmission line hoisting operation Portable hand-operated wring grinder as claimed in claim 5, it is characterized in that: described binding mechanism comprises the second contiguous block (61), 3rd contiguous block (62), screw rod (63) and tied rope (64), described second contiguous block (61) and the 3rd contiguous block (62) are all hinged on support frame as described above (1), described second contiguous block (61) has the second tapped through hole (611), described screw rod (63) is screwed in described second tapped through hole (611), described 3rd contiguous block (62) has a through hole (621) and more than one screwed hole (622) be connected with described through hole (621), one end of described tied rope (64) is passed through hole (621) and is fixed by the tight fixed bolt (623) be screwed in screwed hole (622), the other end of described tied rope (64) is connected to one end of described screw rod (63), the other end of described screw rod (63) is connected with locking nut (65).

7. transmission line hoisting operation Portable hand-operated wring grinder as claimed in claim 6, it is characterized in that: support frame as described above (1) is the rectangular frame structure formed that to be connected with two lateral frames by two perpendicular supports, two lateral frames of support frame as described above (1) are respectively equipped with described binding mechanism, the two ends of the lateral frame of support frame as described above (1) have the protuberance (14) horizontally outward stretched out respectively, described second contiguous block (61) and the 3rd contiguous block (62) one_to_one corresponding are hinged on two protuberances (14) of the lateral frame of support frame as described above (1).

8. transmission line hoisting operation Portable hand-operated wring grinder as claimed in claim 7, it is characterized in that: described second contiguous block (61) and the 3rd contiguous block (62) all have the rotational freedom in horizontal plane, the axis of described second tapped through hole (611) and through hole (621) is all parallel to horizontal plane, is hinged and connected between the protuberance (14) of the lateral frame of described second contiguous block (61) and support frame as described above (1) by chain (612).

9. transmission line hoisting operation Portable hand-operated wring grinder as claimed in claim 7, is characterized in that: the part be positioned between two protuberances (14) of the lateral frame of support frame as described above (1) is provided with the draw-in groove (15) corresponding to the binding position shape of power transmission line column.