CN107453281B - High-voltage auxiliary stringing device - Google Patents

Abstract

The invention relates to a high-voltage auxiliary stringing device, which belongs to the field of wire stringing equipment for power transmission lines. The cable to be erected is lifted by means of the mutual meshing of the lifting rack and the lifting gear, which realizes safe operation in high-altitude operations and avoids the use of artificial The dangers and hidden dangers caused by the pushing method ensure the safe and efficient construction to the greatest extent.

Description

High voltage auxiliary stringing device

technical field

The invention belongs to the field of power transmission line stringing equipment, and in particular relates to a high-voltage auxiliary stringing device.

Background technique

The laying of transmission lines needs to build transmission towers or transmission poles first, and put the transmission lines on the cross arms of transmission towers or transmission poles. The wire is lifted into the top groove of the insulator to complete the wiring construction.

At present, the wiring construction is completely dependent on manpower, and the construction personnel need to support the heavy transmission line with their shoulders, lift the transmission line to the same height as the top of the insulator, and then erect it into the groove on the top of the insulator. The top of the transmission tower or transmission pole, and the construction personnel mainly use the foot buckle or the cross arm as the foothold, and a little carelessness will cause a falling accident, which poses a great threat to personnel safety; and because the transmission line needs to be lifted during the wiring construction , If a high-voltage transmission line with a thicker wire diameter is encountered during construction, the physical strength of the construction personnel will be greatly consumed, and the efficiency of the wiring construction will be difficult to improve.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, the present invention provides a high-voltage auxiliary stringing device, which can apply force with the help of a cross arm, avoiding the safety hazard of relying on manual jacking, and improving construction efficiency.

The concrete technical scheme that the present invention adopts is:

High-voltage auxiliary stringing device, supplemented by lifting the transmission line into the top groove of the insulator on the cross arm, this device includes a base fixed to the cross arm, a vertical lifting mechanism fixed to the base, and a vertical lifting The movable end of the mechanism is fixedly connected with the horizontal moving mechanism, and the movable end of the horizontal moving mechanism is fixedly connected with a support bracket with an arc-shaped wire storage groove. , Two-dimensional displacement adjustment degrees of freedom in the horizontal direction.

The vertical lifting mechanism includes a lifting mechanism and a lowering mechanism with the same structure, and the vertical lifting mechanism is also provided with lifting racks with left and right split structures. The two sides of the rack are parallel and oppositely arranged; the lifting mechanism includes a vertical sliding sleeve fixed on the base with a through hole, the vertical sliding sleeve is fitted with a lifting rack, and is engaged with the lifting rack by means of the through hole The lifting gear, the lifting swing lever used to toggle the lifting gear and the lifting limit mechanism used to prevent the lifting gear from reversing, the horizontal movement mechanism is fixedly connected with the lifting rack; The descending gear meshed with the bar, the descending swing lever, the descending limit block used to prevent the reverse rotation of the descending gear, the descending teeth arranged on the descending swing lever for stirring the descending gear.

The lifting limiting mechanism includes a lifting limiting block hinged in the through hole, and the lifting limiting block is pressed on the teeth of the lifting gear by means of a torsion spring, and the lifting gear is lifted when the lifting gear rotates in its reverse direction. The limit block and the side wall of the through hole form a top pressure limit.

A lifting toggle tooth is provided between the lifting swing lever and the lifting gear, one end of which is hinged to the lifting swing lever and the other end meshes with the teeth of the lifting gear. The lifting swing lever moves the lifting gear by means of the lifting toggle tooth.

The lifting gear is hinged with the lifting pendulum and is pressed on the teeth of the lifting gear by means of a torsion spring. The hinged end of the lifting gear is also provided with a wedge-shaped block, and the wedge-shaped block presses against the lifting limit block to make the lifting The swing rod and the lifting limit block respectively have degrees of freedom to rotate around their respective hinge axes.

The horizontal moving mechanism includes a horizontal sliding sleeve fixedly connected with the lifting rack. The horizontal sliding sleeve is fitted with a translation rack. A through hole is arranged on the side of the horizontal sliding sleeve. A propulsion mechanism is arranged in the through hole. The mechanism includes a propulsion gear hinged in the through hole and meshed with the translation rack, a propulsion swing lever used to toggle the propulsion gear, and a propulsion limit block used to prevent the propulsion gear from reversing. In order to move the push tooth of the push gear, the support bracket is arranged at the end of the translation rack.

A retraction mechanism is also provided in the through hole of the horizontal sliding sleeve, and the retraction mechanism includes a retraction gear meshed with the translation rack, a retraction swing lever, and a retraction limit block for preventing the retraction gear from reversing . A retraction toggle tooth arranged on the retraction swing rod for activating the retraction gear, the retraction mechanism and the propulsion mechanism have a mirror-image symmetrical structure.

The beneficial effects of the present invention are:

The present invention lifts the cable to be erected by means of the mutual meshing of the lifting rack and the lifting gear, realizes safe operation in high-altitude operations, avoids hidden dangers caused by manual pushing, and ensures construction safety to the greatest extent. Proceed efficiently.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the schematic diagram of A perspective in Fig. 1;

Fig. 3 is the top view of Fig. 1;

Fig. 4 is a state diagram when the lifting mechanism pushes and lifts the rack;

Fig. 5 is a state diagram when the lifting mechanism relaxes the lifting rack;

Fig. 6 is the schematic diagram when moving horizontally;

In the accompanying drawings, 1, vertical sliding sleeve, 101, elevating rack, 102, elevating gear, 103, elevating swing bar, 104, elevating limit block, 105, elevating shifting tooth, 106, wedge block, 201, descending gear , 202, descending pendulum, 203, descending limit block, 204, descending gear, 3, supporting bracket, 4, horizontal sliding sleeve, 401, translation rack, 402, propulsion gear, 403, propulsion pendulum, 404 , advance the limit block, 405, advance the dial tooth, 501, retract the gear, 502, retract the pendulum, 503, retract the limit block, 504, retract the dial tooth, 6, the base.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

Specific embodiment 1, as shown in Fig. 1 to Fig. 5, the present invention is a high-voltage auxiliary stringing device, supplemented by lifting the transmission line into the top groove of the insulator on the cross arm, and the device includes a base 6 fixed to the cross arm , the vertical lifting mechanism fixedly connected with the base 6, and the horizontal moving mechanism fixedly connected with the movable end of the vertical lifting mechanism, the movable end of the horizontal moving mechanism is fixedly connected with a supporting bracket provided with an arc-shaped wire storage groove 3. The support bracket 3 has two-dimensional displacement adjustment degrees of freedom in the vertical and horizontal directions by means of the vertical lifting mechanism and the horizontal moving mechanism respectively.

The vertical lifting mechanism includes a lifting mechanism and a lowering mechanism with the same structure, and the lifting mechanism and the lowering mechanism are arranged in parallel and opposite directions; the described lifting mechanism includes a vertical sliding sleeve fixed on the base 6 and having a through hole 1. The vertical sliding sleeve 1 is fitted with a lifting rack 101. The lifting rack 101 has a left and right split structure. The lifting gear 102 meshed with the lifting rack 101 through the through hole is used to move the lifting gear 102. The swing rod 103 and the lifting limit mechanism used to prevent the lifting gear 102 from reversing, the horizontal movement mechanism is fixedly connected with the lifting rack; The rod 202 , the descending limit block 203 for preventing the descending gear 201 from reversing, and the descending toggle tooth 204 arranged on the descending swing rod 202 for toggling the descending gear 201 . When the present invention is in use, the cross arm is fixed with the present invention by means of the base 6. The base 6 is a U-shaped structure that can be plugged into the cross arm, which is convenient for fixing. The cables to be erected are supported by the supporting bracket 3, and the personnel are as shown in the figure. Shake the lifting swing bar 103 in the direction shown in 4, at this time, the lifting gear 102 rotates and pushes the lifting rack 101 to move. , the force arm of the lifting gear 102 is enlarged, and a labor-saving lever structure is formed, so that heavy cables, especially high-voltage cables with thick wire diameters, can be erected relatively labor-savingly, avoiding the safety hazard caused by direct pushing of personnel. Improve construction efficiency.

When the down operation is required, the lift rack 101 has been limited by the lifting mechanism, so the limit needs to be released. The operation method is as shown in Figure 5, with the help of the lifting pendulum 103 swinging counterclockwise, so that the wedge block 106 and the lifting The limit block 104 is pressed against the contact, so that the lifting swing bar 103 and the lifting limit block 104 are rotated around their respective hinge shafts respectively. Teeth are separated so as to release the limit position. Now, the lowering mechanism moves down the lifting rack 101 intermittently by the swing of the lowering swing rod 202 to ensure the convenience of use.

Specific embodiment 2, further, the lifting limiting mechanism includes a lifting limiting block 104 hinged in the through hole, and the lifting limiting block 104 is pressed on the teeth of the lifting gear 102 by means of a torsion spring. When the lifting gear 102 rotates in its reverse direction, the lifting limit block 104 and the side wall of the through hole form a pressure limit.

Between the lifting swing bar 103 and the lifting gear 102, there is a lifting toggle tooth 105 whose one end is hinged with the lifting swing link 103 and whose other end meshes with the teeth of the lifting gear 102. 105 to toggle the lifting gear 102.

The lifting dial 105 is hinged with the lifting swing rod 103 and is pressed on the teeth of the lifting gear 102 by means of a torsion spring. The hinged end of the lifting dial 105 is also provided with a wedge block 106, which is connected to the lifting limit position. The pressing contact of the block 104 enables the lifting swing bar 103 and the lifting limiting block 104 to have degrees of freedom to rotate around their respective hinge axes.

When lifting the pendulum 103 swinging once the distance is not enough to complete the stringing, multiple swings are required. At this time, the lifting pendant 103 is rocked in the opposite direction of the arrow shown in Fig. 4 . The cable is loaded, so it has a tendency to move in the opposite direction. When the lifting swing bar 103 is rocked in the opposite direction, the lifting gear 102 can no longer be pushed to the top by means of the lifting shifting teeth 105. The position block 104 is pushed to the top, and the lift limit block 104 deflects and contacts the side wall of the through hole for limit, thereby avoiding the hidden danger of the lift gear 102 reverse rotation that may occur when the lift pendulum 103 swings back and forth, and ensuring the stringing construction went smoothly.

Specific embodiment 3, the described horizontal movement mechanism includes the horizontal sliding sleeve 4 fixedly connected with the lifting rack 101, the horizontal sliding sleeve 4 is fitted with a translation rack 401, and the side of the horizontal sliding sleeve 4 is provided with a through hole, the through hole A propulsion mechanism is provided inside, and the propulsion mechanism includes a propulsion gear 402 hinged in the through hole and meshed with the translation rack 401, a propulsion pendulum 403 for pushing the propulsion gear 402, and a propulsion swing lever 403 for preventing the propulsion gear 402 from reversing The push limit block 404 and the push swing bar 403 are provided with a push tooth 405 for pushing the push gear 402, and the support bracket 3 is set at the end of the translation rack.

A retraction mechanism is also provided in the through hole of the horizontal sliding sleeve 4, and the retraction mechanism includes a retraction gear 501 meshing with the translation rack 401, a retraction pendulum 502, and a mechanism for preventing the retraction gear 501 from reversing. The retraction limiting block 503 and the retraction toggle tooth 504 arranged on the retraction pendulum 502 are used to toggle the retraction gear 501 , and the retraction mechanism and the propulsion mechanism have a mirror-image symmetrical structure.

As shown in FIG. 6 , the horizontal sliding sleeve 4 is used to push the translation rack 401 to push the cable waiting to be erected on the support bracket 3 to the left or right, so as to facilitate access to the insulation terminal erected on the cross arm. Thereby play the effect of convenient use.

The lifting mechanism, the descending mechanism, the retracting mechanism and the propulsion mechanism have the same structure and are interchangeable with each other, thereby reducing the manufacturing cost and difficulty, and the preparation of spare parts is also relatively convenient.

Further, in order to avoid the problem of unbalanced force, the lifting rack 101 adopts a left and right split structure, and the lowering mechanism and the lifting mechanism are respectively arranged on the lifting rack 101 of the left and right split structure. The lower end of the horizontal sliding sleeve 4 is provided with a sleeve, and the end of the lifting rack 101 is provided with an L-shaped insertion rod, which forms a flexible connection with the sleeve sleeve. After the wiring on one side is completed, it is necessary to When the other side is wired again, the horizontal sliding sleeve 4 can be pulled out, and after turning left and right, the plug-in rod and the sleeve are re-inserted, thereby realizing the stringing on the other side, avoiding the re-fixation of the base 6, and It is convenient for personnel to apply force and easy to operate.

Claims (3)

1. Supplementary overhead line device of high pressure is assisted in the top recess of insulator on lifting the power transmission line to the cross arm, its characterized in that: the device comprises a base (6) fixed with a cross arm, a vertical lifting mechanism fixedly connected with the base (6), and a horizontal moving mechanism fixedly connected with the movable end of the vertical lifting mechanism, wherein the movable end of the horizontal moving mechanism is fixedly connected with a bearing bracket (3) provided with an arc-shaped wire storage groove, and the bearing bracket (3) has two-dimensional displacement adjustment freedom degrees in the vertical direction and the horizontal direction by means of the vertical lifting mechanism and the horizontal moving mechanism respectively;

the vertical lifting mechanism comprises a lifting mechanism and a descending mechanism which have the same structure, the vertical lifting mechanism is also provided with a lifting rack (101) with a left split structure and a right split structure, and the lifting mechanism and the descending mechanism are arranged on two sides of the lifting rack (101) in parallel and in opposite directions; the lifting mechanism comprises a vertical sliding sleeve (1) which is fixed on the base (6) and is provided with a through hole, a lifting rack (101) is sleeved in the vertical sliding sleeve (1), a lifting gear (102) which is meshed with the lifting rack (101) by virtue of the through hole, a lifting swing rod (103) which is used for shifting the lifting gear (102) and a lifting limiting mechanism which is used for preventing the lifting gear (102) from reversing, and the horizontal moving mechanism is fixedly connected with the lifting rack (101); the descending mechanism comprises a descending gear (201) meshed with the lifting rack (101), a descending swing rod (202), a descending limiting block (203) used for preventing the descending gear (201) from reversely rotating, and a descending shifting tooth (204) arranged on the descending swing rod (202) and used for shifting the descending gear (201);

the lifting limiting mechanism comprises a lifting limiting block (104) hinged in the through hole, the lifting limiting block (104) is pressed on teeth of the lifting gear (102) by means of a torsion spring, and the lifting limiting block (104) and the side wall of the through hole form jacking limiting;

a lifting shifting tooth (105) with one end hinged with the lifting swing rod (103) and the other end meshed with teeth of the lifting gear (102) is arranged between the lifting swing rod (103) and the lifting gear (102), and the lifting swing rod (103) and the lifting gear (102) form a meshing structure by virtue of the lifting shifting tooth (105);

the lifting shifting teeth (105) are hinged with the lifting swing rod (103) and are pressed on teeth of the lifting gear (102) by means of torsion springs, the hinged ends of the lifting shifting teeth (105) are also provided with wedge blocks (106), and the wedge blocks (106) are in abutting contact with the lifting limiting blocks (104) so that the lifting swing rod (103) and the lifting limiting blocks (104) respectively have rotational freedom degrees around respective hinged shafts;

when the pushing distance of the lifting swing rod (103) which is rocked once is not enough to complete stringing, multiple times of swinging are needed, at the moment, the lifting swing rod (103) is rocked in the opposite direction, at the moment, the lifting rack (101) bears a cable, so that the cable has the trend of moving in the opposite direction, when the lifting swing rod (103) is rocked in the opposite direction, the lifting gear (102) can not be pushed by the lifting shifting teeth (105), when the lifting gear (102) rotates reversely, the teeth of the lifting gear can be pushed against the lifting limiting block (104), the lifting limiting block (104) deflects and is in contact with the side wall of the through hole for limitation, thereby avoiding the hidden danger that the lifting gear (102) rotates reversely when the lifting swing rod (103) swings in a reciprocating manner, and ensuring the smooth stringing construction.

2. The high voltage auxiliary stringing device as claimed in claim 1, wherein: the horizontal movement mechanism comprises a horizontal sliding sleeve (4) fixedly connected with a lifting rack (101), a translation rack (401) is sleeved in the horizontal sliding sleeve (4), a through hole is formed in the side portion of the horizontal sliding sleeve (4), a propelling mechanism is arranged in the through hole, the propelling mechanism comprises a propelling gear (402) hinged in the through hole and meshed with the translation rack (401), a propelling swing rod (403) used for pushing the propelling gear (402) and a propelling limiting block (404) used for preventing the propelling gear (402) from reversing, a propelling poking tooth (405) used for pushing the propelling gear (402) is arranged on the propelling swing rod (403), and a bearing bracket (3) is arranged at the end portion of the translation rack.

3. The high voltage auxiliary overhead line device of claim 2, wherein: the retraction mechanism is further arranged in the through hole of the horizontal sliding sleeve (4), the retraction mechanism comprises a retraction gear (501) meshed with the translation rack (401), a retraction swing rod (502), a retraction limiting block (503) used for preventing the retraction gear (501) from rotating reversely, and a retraction shifting tooth (504) arranged on the retraction swing rod (502) and used for shifting the retraction gear (501), and the retraction mechanism and the advancing mechanism are of a mirror symmetry structure.

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