CN108365562B - Interval adjustable two-stage balance weight traction device - Google Patents

Abstract

The invention provides a two-stage balance weight traction device with adjustable space, which comprises a right-angle trapezoidal plate and a strip-shaped connecting plate through a traction bracket, wherein the two trapezoidal plates are sequentially overlapped and arranged on the connecting plate; the heads of the two trapezoid plates are coaxially and rotatably connected with the connecting plate through a first rotating shaft, and the distance between the outer side coupler holes of the two trapezoid plates is adjusted and positioned through connecting bolts; the front end of the traction bracket is connected with the traction rope through a coupler, and U-shaped rings at two ends of the rear end along the width direction are respectively connected with the lead through traction extension rods; the two counterweight hinges are symmetrically arranged at the two ends of the traction extension rod respectively and are arranged corresponding to the two outermost side wires at the rear end. The invention has simple structure, convenient installation and operation, repeated use, economy, practicality, reasonable design and compact structure, can be used in wire material spreading engineering such as traction of various ground wires, can ensure the safety, simplicity and rapidness of wire spreading construction, and is suitable for wide popularization.

Description

Two-stage balanced counterweight traction device with adjustable spacing

Technical field

The invention relates to the technical field of power system auxiliary equipment, and in particular to a two-stage balanced counterweight traction device with adjustable spacing.

Background technique

Due to the development of society and the advancement of science and technology, it is more and more common for people to use modern construction machinery in various construction projects to improve the efficiency of construction projects, reduce the occurrence of personal casualties, effectively protect people's property and life safety, and achieve harmonious development. Make greater contributions to a well-off life. In the construction of power grid, wire erection is an important part of power construction, which has a great impact on the construction period. Moreover, it is a high-altitude operation, and the safety risk is also great. Careless operation can cause personal injury and death accidents caused by falling from high altitude, causing serious damage to national property and family life. huge loss. There are the following problems when spreading traditional ground wires: 1. One traction rope can only spread out individual wires. When pulling three wires, one is too heavy and the work efficiency is low; 2. Because the walking board is installed on the axis of the traction wire, The weight is heavy and the counterweight method is unreasonable; 3. The weight is installed in the middle and cannot pull the wire; 4. It is easy to rotate when passing the pulley; 5. The distance between the board lines is fixed and cannot adapt to various sizes of racks. Line pulley; 6. After the counterweight hinge passes the pulley, due to the long counterweight hinge, the sudden fall will cause greater vibration, which increases construction safety risks; 7. When the walking plank passes the pulley, because the counterweight hinge loses its counterweight function, the walking plank will It is also easy to rotate, causing the display to not proceed normally. Therefore, the use of walking boards in line erection needs to be improved to better adapt to the requirements of modern construction technology, improve efficiency, shorten construction time, save costs, and develop new equipment.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned problems in the existing technology, provide measures to improve the function, and develop a new pay-off tractor with adjustable spacing and two-stage counterweights, which has a reasonable design and a compact structure.

In order to achieve the above objectives, the present invention is achieved through the following technical solutions:

The two-stage balanced counterweight traction device with adjustable spacing includes a traction bracket, a counterweight hinge, an inner coupling, an outer coupling and a traction extension rod; the traction bracket includes a right-angled trapezoidal plate and a long connecting plate. The two trapezoidal plates are stacked on the connecting plate in sequence; the heads of the two trapezoidal plates are coaxially connected to the connecting plate through a rotating shaft, and the tails are clamped and positioned by the connecting bolts on the connecting plate; The connecting bolts pass through the long slot positioning holes at the tail of the connecting plate in sequence, and the distance between the U-shaped rings on the two trapezoidal plates is adjusted by adjusting the connection depth between the connecting bolts and the connecting plate; The front end of the traction bracket is connected to the traction rope through an inner coupling, and the U-shaped rings at both ends of the rear end along the width direction are respectively connected to the conductor through a traction extension rod, and the traction extension rod and the conductor are connected to each other through an outer coupling. The two counterweight hinges are respectively symmetrically arranged at both ends of the traction extension rod and are arranged corresponding to the two outermost wires at the rear end.

Furthermore, the traction extension rod is a structure in which multiple chain link pieces are connected in series end to end.

Further, the length of the traction extension rod is greater than the length of the counterweight hinge.

Furthermore, the sides of the elongated slot positioning holes of the two trapezoidal plate fitting surfaces are provided with mutually meshing rack structures.

Further, the open end of the U-shaped ring is fixedly connected to the rear end of the traction bracket, and is connected to one end of the traction extension rod, and the other end of the traction extension rod is connected to the outer coupling shaft. One end of the outer coupling is connected to the wire, and the other end of the outer coupling is connected to the wire.

Furthermore, an outwardly convex arc-shaped positioning guide rib is provided at the middle position along the length direction of the lower surface of the connecting plate.

Further, the counterweight hinge includes a plurality of link pieces connected end to end in series and a pin for connecting the plurality of link pieces in series; the counterweight hinge is connected through the head of the top link piece. Hinged to the rear of the traction bracket.

Further, the chain link piece is a sheet steel structure, and the chain link piece is provided with a groove hole that matches the conductor.

Compared with the prior art, the beneficial effects of the present invention are:

1. When the present invention is in use, the hinges are configured on both sides to control a large rotational torque, the walking plate traction wire runs smoothly, and the vibration of the counterweight hinge is small when passing the pulley.

2. By setting the distance between the traction holes on both sides of the tail of the split traction support plate, it can be adjusted according to the distance of the pulley. It is suitable for different pay-off pulleys, and the traction bracket will not rotate when passing the pulley.

3. Using one traction rope to pull multiple wires, the speed is fast and the work efficiency is high.

4. By arranging hinges on both sides, the rotation torque is controlled to be large, and the traction wires on the walking board run smoothly, and the wires will not be twisted together, causing wire jams. At the same time, by configuring counterweight hinges on both sides of the rear part of the traction bracket, the traction force is reduced. , save time, speed up project progress, and reduce costs.

5. The invention has a simple structure, is easy to install and operate, can be reused, is economical and practical, has a reasonable design, and has a compact structure. It can be used in pulling various ground wires and other wire rod exhibition projects, and can ensure the safety, simplicity and speed of the cable exhibition construction. , suitable for widespread promotion.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. It is obvious that the drawings in the following description are only For some embodiments of the present invention, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts.

Figure 1 is a schematic three-dimensional structural diagram of the present invention;

Figure 2 is a side view of the present invention;

Figure 3 is a schematic diagram of the counterweight hinge of the present invention in use;

Figure 4 is a schematic structural diagram of the use state of the present invention on a pulley;

Figure 5 is a schematic structural diagram of the traction bracket of the present invention;

Figure 6 is a schematic structural diagram of the traction bracket of the present invention;

Figure 7 is a side view of Figure 6 of the present invention;

Figure 8 is a schematic three-dimensional structural diagram of the trapezoidal plate of the present invention;

Figure 9 is a schematic structural diagram of two trapezoidal plates of the present invention;

Explanation of numbers in the figure:

1. Traction bracket; 11. Trapezoidal plate; 111. Long slot positioning hole; 112. Rack structure; 12. Connecting plate; 121. Positioning guide rib; 2. Counterweight hinge; 21. Chain link piece; 211. Head Series joint; 212, grooved hole; 31, inner coupling; 32, outer coupling; 4, traction extension rod; 5, wire; 6, U-shaped ring; 7, pulley; 8, rotating shaft one; 9, Connecting bolts; 10. Traction rope.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the present invention. Examples, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

The present invention will be further described in conjunction with the accompanying drawings:

With reference to Figures 1, 2, 3 and 4, a two-stage balanced counterweight traction device with adjustable spacing is characterized by: including a traction bracket 1, a counterweight hinge 2, an inner coupling 31, an outer coupling 32 and the traction extension rod 4; the traction bracket 1 includes a right-angled trapezoidal plate 11 and a long connecting plate 12, and the two trapezoidal plates 11 are stacked on the connecting plate 12 in sequence; the two trapezoidal plates 11 The heads are all coaxially connected to the connecting plate 12 through the rotating shaft 8, and the tail parts are clamped and positioned by the connecting bolts 9 on the connecting plate 12; the connecting bolts 9 pass through the long slots at the tail of the connecting plate 12 in turn. Positioning holes 111, and adjusting the distance between the U-shaped rings 6 on the two trapezoidal plates 11 is achieved by adjusting the connection depth of the connecting bolt 9 and the connecting plate 12; the front end of the traction bracket 1 passes through the inner coupling The device 31 is connected to the traction rope 10, and the two U-shaped rings 6 at the rear end along the width direction are respectively connected to the wires 5 through the traction extension rod 4; the two counterweight hinges 2 are symmetrically arranged on the traction extension rod 4. Both ends are arranged correspondingly to the two outermost wires 5 at the rear end. By arranging a split traction bracket 1, the present invention realizes that the distance between the traction holes on both sides between the rear ends of the conductors can be adjusted according to the distance of the pulley, and is suitable for different pay-off pulleys; the front end of the connecting plate 12 is provided with a round hole , matched with the coupling of the traction rope 10; the two sides of the traction bracket are inclined planes to prevent the pay-off pulley 7 from getting stuck, and the pulley 7 can pass smoothly; the coupling is used to connect the driving shaft and the driven shaft in different mechanisms Mechanical components that are firmly connected to rotate together and transmit motion and torque. They can withstand a certain amount of tension and have a rotating shaft in the middle that can rotate. By connecting two shafts or a shaft and a rotating part, they rotate together in the process of transmitting motion and power. To break the torsional effect of the wire 5; by placing the counterweight hinges 2 on both sides, the moment arm controlling the traction bracket 1 can be maximized to prevent the rotation of the traction bracket 1 under the same weight, making the tractor walk more smoothly; because There are four counterweight hinges in total, and they are installed on both sides to prevent large torques. The length of each counterweight hinge is short. When passing the pulley, the vibration is small and will not cause a major safety risk; there are two traction extension rods on both sides at the end. The U-shaped ring and the counterweight hinge connection point, the U-shaped ring is on the counterweight hinge, the U-shaped ring is connected to the coupling, used to pull the wire; the counterweight hinge connection point is vertically slotted, and the horizontal axis pin makes it It can rotate in the vertical direction to prevent the traction bracket from rotating, so this counterweight hinge is a secondary counterweight.

As a preferred embodiment, the traction bracket is a steel component, composed of two right-angled trapezoidal and rectangular steel plates with a thickness of 8-12 mm to withstand different tensile forces; the upper bottom of the right-angled trapezoid is 30-40 mm long, and the height is 25 mm. The bottom is 250-300 mm; holes are opened on the bisector of the right angle of the upper bottom and within the acute angle of the bottom, 20 mm away from each side, to fix the plate bracket and install the coupling and counterweight hinge, and Process the acute angle into an arc shape; use the round hole at the upper bottom as the axis of rotation, align the right-angled sides of the two right-angled trapezoids with the other hypotenuse, and mark the intersection of the lower bases (if it exceeds, the right angle at the lower base may exceed the maximum Opening distance, which affects the movement of the plate through the pulley), connect a straight line to the center point of the opening, use the center point of the opening as the circle point, draw an arc with the right-angled distance to the bottom as the radius, and intersect with the straight line, 30 mm upward, respectively. Open a long arc-shaped hole in the direction of the right-angled edge, and keep it about 15 mm from the right-angled edge (take the center point of the opening as the circle point, and the intersection point 30 mm upward as the radius, and the difference between the large and small radius is 12.5-14.5 mm); connecting plate The width of 12 is 30-50 mm, and the length should exceed the length of the hypotenuse of the right-angled trapezoid by 50-100 mm to prevent the tail distance from being adjusted small so that the two trapezoidal plates 11 cannot move and affect the connection of the traction line of the middle connecting plate 12; the upper end is provided with two hole, one is consistent with the hole at the upper end of the trapezoid, the frontmost hole is matched with the coupling, the middle hole is consistent with the open slot, and the lowermost hole is connected with the intermediate phase conductor coupling and is used to pull the intermediate phase wire.

The traction extension rod 4 is a structure in which multiple chain links are connected in series end to end; the traction extension rod is also made of multiple sections, and the connection points between each section are vertically slotted and horizontally pinned so that they can rotate in the vertical direction. Prevents the tow extension from turning.

The length of the traction extension rod 4 is greater than the length of the counterweight hinge 2; the length of the traction extension rod is only 100 mm longer than the counterweight hinge. At this time, the front counterweight hinge does not have a counterweight function, and the secondary counterweight hinge does. Function, after the first level, the second level starts to pass through the pulley without the counterweight function, and the front-end first-level counterweight hinge works, so that the walking board can reliably pass the pulley and will not rotate.

With reference to Figure 5, Figure 6, Figure 7, Figure 8 and Figure 9, the sides of the long slot positioning holes 111 of the two trapezoidal plates 11 are provided with mutually meshing rack structures 112; through the space between the racks The smaller the tooth pitch, the more accurate the adjustment distance. When the middle bolt is tightened, it can be used to prevent the two trapezoids from moving inward, keep the distance between the two traction ropes at the tail unchanged, and adjust the traction path according to the distance of the pay-off pulley. The distance between the tails of the boards is equal, adapting to pay-off pulleys at different distances, making the adjustment more convenient and reliable.

The U-shaped ring 6 is provided on the trapezoidal plate 11. The U-shaped ring 6 is located on the counterweight hinge. The open end of the U-shaped ring 6 is fixedly connected to the rear end of the traction bracket 1. The other end is connected to the wire 5 through an outer coupling 32; a U-shaped ring 6 and a counterweight hinge 2 connection point are provided on both sides of the rear end of the traction bracket 1; the U-shaped ring 6 is connected to the outer side. The shaft 32 is connected and used to pull the conductor 5 .

The outer end of the trapezoidal plate 11 is provided with a connection hole matching the connecting shaft of the coupling, and the front and rear ends of the connecting plate 12 are provided with connection holes matching the coupling.

The connecting plate 12 is also provided with a convex arc-shaped positioning guide rib 121 at the middle position along the length direction of the connecting plate 12; the connecting plate 12 is provided with an arc-shaped positioning rib in the middle part facing the position of the traction rope coupling. The front end is half bullet-shaped, which can easily enter the pulley groove and play the role of traction bracket walking in the middle of the pulley.

The distance between the middle hole of the traction bracket 1 and the holes on both sides should be equal to the center distance of the pulleys 7 on both sides, so that the counterweight hinge 2 and the wire 5 can accurately walk in the groove of the pulley 7 to prevent them from coming out of the groove.

The counterweight hinge 2 includes a plurality of link pieces 21 connected end to end in series and a pin for connecting the plurality of link pieces 21 in series; the counterweight hinge 2 passes through the head of the top link piece 21 The series joint 211 is hinged to the rear of the traction bracket 1, thereby realizing the coaxial rotation of the top link piece 21 and the traction bracket 1; both axial ends of the pin are inserted into the tail accommodation opening, and at the same time The head series joint 211 of the rear link piece is provided with a through hole that matches the pin of the front link piece 21, thereby realizing coaxial rotation between the series connected link pieces 21; through the top link The head series joint 211 of the piece 21 is hinged with the traction bracket 1 and the coaxial rotation between the chain link piece 21 realizes the one-way rotation of the counterweight hinge 2. The counterweight hinge 2 is in the height direction of the traction bracket 1 Rotate, and at the same time prevent the traction bracket 1 from twisting, and avoid the situation where the wires 5 are twisted together and cannot be paid out.

The chain link piece 21 is a sheet steel structure; and the chain link piece 21 is provided with a groove hole 212 that matches the conductor 5; the cross section passing through the chain link piece is circular with a semicircular notch. , the circle with semicircular notch is used to place the wire. When the wire passes through the pulley, the counterweight hinge and the wire overlap and pass through the pulley. After passing, the counterweight hinge separates from the wire, and the counterweight hinge goes vertically downward.

The principle of use and installation method of the pay-off tractor with adjustable spacing and two-stage counterweight: Place the rectangular connector at the bottom, with the side with the positioning guide rib facing downwards, and thread the bolts from bottom to top (the lower end nut is on the guide (inside the ribs), thread the upper corner holes of the rectangle and the two trapezoids together, and then adjust the distance of the traction holes on both sides of the tail according to the center distance of the pulleys on both sides of the three pulleys. Use two bolts up and down to form a traction bracket. The front end of the traction bracket is connected to the traction rope through a coupling. Install the traction extension rod and the first-level counterweight hinge on the upper and lower connection points respectively. Then, connect the U-shaped ring and connection point at the tail of the traction extension rod with the coupling and the coupling respectively. The secondary counterweight hinges are connected together, and the U-shaped ring is above the counterweight hinge. The U-shaped ring is connected to the coupling and is used to pull the wires. According to the number of wires to be pulled, they are connected to the U-shaped ring at the end of the traction extension rod. When connecting two wires, use the U-shaped rings on both sides to connect to the wires through couplings; when pulling three wires, connect the wires to the middle hole, and the U-shaped rings on both sides are connected to the wires through couplings; according to the twist of the wires The size of the force, select the length (weight) of the counterweight hinge, install the counterweight hinge on the four connection points on both sides, and the semicircular notch on the counterweight hinge can coincide with the conductor, and the conductor can be carried out through the three-wheeled pulley. Exhibition work.

When the present invention is in use, the hinges are configured on both sides to control a large rotational torque, the traction wire of the walking plate runs smoothly, and when the counterweight hinge passes the pulley, the vibration is small; by arranging traction holes on both sides between the tail parts of the split traction support plate The distance can be adjusted according to the distance of the pulley, which is suitable for different pay-off pulleys, and the traction bracket will not rotate when passing the pulley; multiple wires can be pulled through one traction rope, which is fast and efficient; through two The hinges are configured on the side to control the large rotational torque. The traction wires on the walking board run smoothly and the wires will not be twisted together, causing wire jams. At the same time, counterweight hinges are configured on both sides of the rear of the traction bracket to reduce the traction force and save time. Accelerate the project progress and reduce costs; the invention has a simple structure, convenient installation and operation, can be reused, is economical and practical, has a reasonable design, and has a compact structure. It can be used in wire extension projects such as pulling various ground wires, etc., and can ensure the construction of wire extensions. Safe, simple and fast, suitable for widespread promotion.

It should be noted that the coupling can be a coupling, which is a common mechanical part that transmits torque; the front end of the wire is provided with a rope sleeve to connect to the coupling or U-shaped ring, which is common in power systems. Connection method.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis", The orientation or positional relationship indicated by "radial direction", "circumferential direction", etc. are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply the device or element to which they are referred. Must have a specific orientation, be constructed and operate in a specific orientation and are therefore not to be construed as limitations of the invention.

In the present invention, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified limitations. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are illustrative and should not be construed as limitations of the present invention. Those of ordinary skill in the art can make modifications to the above-mentioned embodiments within the scope of the present invention. The embodiments are subject to changes, modifications, substitutions and variations.

Claims (6)

1. Interval adjustable two-stage balance weight draw gear, its characterized in that: comprises a traction bracket (1), a counterweight hinge (2), an inner side coupler (31), an outer side coupler (32) and a traction extension rod (4); the traction support (1) comprises right-angle trapezoid plates (11) and long-strip-shaped connecting plates (12), wherein the trapezoid plates (11) are sequentially stacked on the connecting plates (12), and a right-angle edge and the other bevel edge of the trapezoid plates (11) are aligned; the front end of the traction support (1) is connected with a traction rope (10) through an inner side coupler (31), two ends of a U-shaped ring (6) at the rear end along the width direction are respectively connected with a lead (5) through a traction extension rod (4), the open end of the U-shaped ring (6) is fixedly connected with the rear end of the traction support (1) and is connected with one end of the traction extension rod (4), the other end of the traction extension rod (4) is connected with one end of an outer side coupler (32), and the other end of the outer side coupler (32) is connected with the lead (5); the heads of the two trapezoid plates (11) are coaxially and rotatably connected with the connecting plate (12) through a first rotating shaft (8), and the tails of the trapezoid plates are clamped and positioned through connecting bolts (9) on the connecting plate (12); the connecting bolts (9) sequentially penetrate through long groove positioning holes (111) at the tail parts of the connecting plates (12), and the distance between the U-shaped rings (6) on the two trapezoid plates (11) is adjusted by adjusting the connection depth of the connecting bolts (9) and the connecting plates (12); the two counterweight hinges (2) are symmetrically arranged at the two ends of the traction extension rod (4) respectively and are arranged corresponding to the two outermost side wires (5) at the rear end;

the sides of the long groove positioning holes (111) of the joint surfaces of the two trapezoid plates (11) are provided with mutually meshed rack structures (112).

2. The adjustable-spacing two-stage counterweight traction device of claim 1 wherein: the traction extension rod (4) is of a structure that a plurality of chain link sheets are sequentially connected in series from head to tail.

3. The adjustable-spacing two-stage counterweight traction device of claim 1 wherein: the length of the traction extension rod (4) is greater than the length of the counterweight hinge (2).

4. The adjustable-spacing two-stage counterweight traction device of claim 1 wherein: the middle position below the connecting plate (12) along the length direction is also provided with a convex arc-shaped positioning guide rib (121).

5. The adjustable-spacing two-stage counterweight traction device of claim 1 wherein: the counterweight hinge (2) comprises a plurality of chain link pieces (21) which are connected end to end in series and a pin shaft used for connecting the plurality of chain link pieces (21) in series; the counterweight hinge (2) is hinged with the rear part of the traction bracket (1) through a head serial joint (211) of the top chain link piece (21).

6. The adjustable pitch two-stage counterweight traction device of claim 5 wherein: the chain link piece (21) is of a sheet steel structure, and a groove hole (212) matched with the lead (5) is formed in the chain link piece (21).