A power transmission tower foot welding device

Abstract

The application discloses a power transmission tower foot welding equipment, and relates to the field of welding.The equipment comprises a positioner, a web plate positioning mechanism, a bottom plate positioning mechanism, a bottom plate displacement mechanism and a welding area.The web plate positioning mechanism is arranged on the positioner, the bottom plate positioning mechanism is arranged on the web plate positioning mechanism or the positioner through the bottom plate displacement mechanism, and the welding area is located on the side of the positioner.A plurality of web plates are positioned and fixed on the positioner through the web plate positioning mechanism, and the bottom plate can be spliced with the plurality of web plates after being positioned through the bottom plate displacement mechanism and the bottom plate positioning mechanism, so that the welding efficiency and the welding precision of the tower foot are improved.The plurality of web plates are spliced in a way that the bottom plate is on the top, so that the problem that the web plates are not easy to be positioned when the bottom plate is on the bottom and the web plates are on the top during welding is solved, and the welding slag generated during the welding process will not fall on the bottom plate to affect the welding of the bottom plate and the web plates.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of welding, and particularly relates to a power transmission tower leg welding device. BACKGROUND

[0002] The tower leg is a connecting component between the power transmission tower and the tower foundation, and is a supporting component of the entire power transmission tower structure, so the stability of the tower leg directly determines the structural stability and service life of the power transmission tower.

[0003] The tower leg generally comprises a bottom plate and three rib plates connected by a weld, and the welds between the three rib plates and the bottom plate are in a cross shape. During welding, a positioner is used to fix and rotate the bottom plate, so that a worker or a welding robot on one side of the positioner can obtain an ideal welding field of view and position, so as to sequentially weld the three rib plates to the bottom plate and weld adjacent rib plates.

[0004] However, during welding, it is inconvenient to set a positioning device on the positioner for positioning the rib plates, and welding slag is prone to accumulate on the bottom plate, so generally a worker needs to position the rib plates by hand and clean the welding slag during welding. SUMMARY

[0005] The present application aims to provide a power transmission tower leg welding device to solve the above-mentioned defects in the prior art.

[0006] A power transmission tower leg welding device comprises a positioner, a rib plate positioning mechanism, a bottom plate positioning mechanism and a bottom plate displacement mechanism. The positioner is provided with a welding area on the side thereof. The rib plate positioning mechanism is arranged on the positioner. The bottom plate positioning mechanism is arranged on the rib plate positioning mechanism through the bottom plate displacement mechanism. The welding area is located on the side of the positioner.

[0007] The rib plate positioning mechanism comprises rib plate positioning columns and a base. The base is arranged on the positioner. A plurality of rib plate positioning columns are arranged on the base. The rib plate positioning columns are provided with rib plate limiting grooves on one side. The width of the rib plate limiting grooves is adapted to the thickness of the rib plate. The rib plate positioning columns and the rib plate positioning columns on the opposite side cooperate to clamp and position the rib plate located therebetween.

[0008] Preferably, the rib plate positioning columns are provided with four rib plate limiting grooves. The rib plate limiting grooves on the opposite two rib plate positioning columns are located on the same straight line. The rib plate limiting grooves on the adjacent two rib plate positioning columns are arranged non-parallelly.

[0009] Preferably, the muscle plate positioning column is provided with a through hole communicated with the muscle plate limiting groove, a resisting column is inserted into the through hole and is in sliding sealing fit with the hole wall, the muscle plate positioning column is provided with a hydraulic drive mechanism connected with the resisting column, and the muscle plate is clamped and positioned by the resisting column driven by the hydraulic drive mechanism.

[0010] Preferably, the muscle plate limiting groove is provided with through holes and resisting columns on both sides and the groove wall between the two sides.

[0011] Preferably, the hydraulic drive mechanism comprises a transmission piston rod and a reset spring, the inside of the muscle plate positioning column is provided with an air hole communicated with the through hole, one end of the transmission piston rod is inserted into the air hole and is in sliding sealing fit, the reset spring is sleeved on the transmission piston rod, one end of the reset spring is connected with the muscle plate positioning column and the other end is connected with the transmission piston rod.

[0012] The transmission piston rod is located on the movement path of the bottom plate positioning mechanism, and the bottom plate positioning mechanism drives the transmission piston rod during the movement of the muscle plate, so that the transmission piston rod drives the resisting column to clamp and position the muscle plate inserted into the muscle plate limiting groove by means of the fluid medium in the air hole.

[0013] Preferably, the bottom plate positioning mechanism comprises a supporting seat corresponding to the number of muscle plate positioning columns, a bottom plate positioning clamping plate, a screw rod and a nut, the supporting seat is horizontally arranged on the bottom plate displacement mechanism, and the transmission piston rod is located on the movement path of one end of the supporting seat.

[0014] The screw rod is arranged at the other end of the supporting seat, the nut is arranged on the screw rod, and the bottom plate positioning clamping plate is located between the nut and the supporting seat and is provided with a circular hole through which the screw rod passes.

[0015] Preferably, the bottom plate positioning clamping plate is provided with a circumferential limiting rod parallel to the screw rod, and the supporting seat is provided with a guide hole for sliding insertion of the circumferential limiting rod.

[0016] Preferably, the inside of the muscle plate positioning column is provided with a cylindrical hole, the bottom plate displacement mechanism comprises a lifting piston rod and a guide pipe communicated with the cylindrical hole, one end of the lifting piston rod is inserted into the cylindrical hole and is in sliding sealing fit, and the other end of the lifting piston rod is connected with the supporting seat.

[0017] The advantages of the present application are that:

[0018] 1. The muscle plate positioning mechanism of the present application can position and fix a plurality of muscle plates on the positioner, and the bottom plate can be spliced with the plurality of muscle plates simultaneously after being positioned by means of the bottom plate displacement mechanism and the bottom plate positioning mechanism, so as to improve the welding efficiency and welding precision of the tower leg.

[0019] 2. The present invention adopts a splicing method with multiple stiffening plates at the bottom and the base plate at the top, which not only solves the problem of difficulty in positioning the stiffening plates when the base plate is at the bottom and the stiffening plates are at the top during welding, but also prevents the welding slag generated during the welding process from falling onto the base plate and affecting the welding of the base plate and stiffening plates. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the rib positioning mechanism and the base plate positioning mechanism of the present invention.

[0022] Figure 3 for Figure 2 Side view.

[0023] Figure 4 for Figure 3 A cross-sectional view along direction A.

[0024] Figure 5 This is a schematic diagram of the tower's base structure.

[0025] The labels in the diagram represent the following:

[0026] 1-Positioning machine; 2-Rib plate positioning mechanism; 3-Base plate positioning mechanism; 4-Base plate displacement mechanism; 5-Circumferential limiting rod; 6-Rib plate limiting groove; 7-Through hole; 8-Hydraulic drive mechanism; 9-Abutment column; 10-Air hole; 11-Cylindrical hole;

[0027] 201-Firming plate positioning column; 202-Base;

[0028] 301-Support seat; 302-Base plate positioning clamp; 303-Screw; 304-Nut;

[0029] 401 - Lifting piston rod; 402 - Guide tube;

[0030] 801 - Drive piston rod; 802 - Return spring. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] like Figures 1 to 5 As shown, a welding device for the base of a power transmission tower includes a positioner 1, a stiffener positioning mechanism 2, a base plate positioning mechanism 3, and a base plate displacement mechanism 4. A welding area (not shown in the figure) is provided on the side of the positioner 1. The stiffener positioning mechanism 2 is set on the positioning disc of the positioner 1. The base plate positioning mechanism 3 is set on the stiffener positioning mechanism 2 through the base plate displacement mechanism 4. The welding area is located on the side of the positioner 1.

[0033] The tendon plate positioning mechanism 2 comprises tendon plate positioning columns 201 and a base 202, the base 202 is arranged on the positioning disc of the positioner 1, a plurality of tendon plate positioning columns 201 are arranged on the base 202, one side of the tendon plate positioning column 201 is provided with a tendon plate limiting groove 6, the width of the tendon plate limiting groove 6 is adapted to the thickness of the tendon plate, and the tendon plate positioning column 201 is matched with the tendon plate positioning column 201 on the opposite side to clamp and position the tendon plate between the two.

[0034] Different from the way of fixing the bottom plate on the positioner 1 and then sequentially splicing the tendon plates on the bottom plate and welding the tendon plates with the bottom plate in the prior art, the present application particularly adopts the splicing mode of multiple tendon plates below and the bottom plate above, the multiple tendon plates are arranged on the positioning disc of the positioner 1 by means of the tendon plate positioning mechanism 2, and the bottom plate can be spliced with the multiple tendon plates at the same time after being positioned by means of the bottom plate displacement mechanism 4 and the bottom plate positioning mechanism 3, which not only solves the problem that it is not easy to position the tendon plate when the bottom plate is below and the tendon plate is above during welding, but also prevents the welding slag generated during the welding process from falling on the bottom plate and affecting the welding of the bottom plate and the tendon plate.

[0035] Specifically, the tendon plate positioning column 201 is provided with four tendon plate positioning columns 201, the tendon plate limiting grooves 6 on the opposite two tendon plate positioning columns 201 are located on the same straight line, and the tendon plate limiting grooves 6 on the adjacent two tendon plate positioning columns 201 are non-parallel. The longer tendon plate is positioned by the two tendon plate positioning columns 201, and then the two short tendon plates are respectively inserted with the two tendon plate positioning columns 201 on the two sides of the longer tendon plate, so that the short tendon plates are kept in abutment with the side surface of the longer tendon plate under the positioning action of the corresponding tendon plate positioning column 201, thereby realizing the positioning of the three tendon plates.

[0036] Among them, the adjacent tendon plates can be welded immediately after the three tendon plates are positioned, or the adjacent tendon plates or the tendon plates and the bottom plate can be preferably welded after the three tendon plates are spliced with the bottom plate.

[0037] Moreover, the tendon plate positioning column 201 is provided with a through hole 7 in communication with the tendon plate limiting groove 6, the through hole 7 is inserted with a resisting column 9 in sliding sealing cooperation with the hole wall of the through hole 7, the tendon plate positioning column 201 is provided with a hydraulic drive mechanism 8 connected with the resisting column 9, and the resisting column 9 clamps and positions the tendon plate by means of the driving of the hydraulic drive mechanism 8. The through hole 7 and the resisting column 9 are arranged on both sides of the tendon plate limiting groove 6 and the groove wall between the both sides, thereby realizing the clamping and positioning of the tendon plate from both sides and the end of the tendon plate, so as to improve the positioning precision and stability of the tendon plate.

[0038] The hydraulic driving mechanism 8 comprises a transmission piston rod 801 and a reset spring 802, the inside of the rib plate positioning column 201 is provided with a gas hole 10 which is communicated with the through hole 7, one end of the transmission piston rod 801 is inserted into the gas hole 10 and is sealed in sliding mode, the reset spring 802 is sleeved on the transmission piston rod 801, one end of the reset spring 802 is connected with the rib plate positioning column 201 and the other end is connected with the transmission piston rod 801.

[0039] And the transmission piston rod 801 is located on the movement path of the bottom plate positioning mechanism 3, the bottom plate positioning mechanism 3 drives the transmission piston rod 801 in the process of moving the rib plate, so that the transmission piston rod 801 drives the rib plate clamped and positioned in the rib plate limiting groove 6 by means of the fluid medium in the gas hole 10.

[0040] The bottom plate positioning mechanism 3 comprises a supporting seat 301 corresponding to the number of the rib plate positioning column 201, a bottom plate positioning clamp plate 302, a screw rod 303 and a nut 304, the supporting seat 301 is horizontally arranged on the bottom plate displacement mechanism 4, and the transmission piston rod 801 is located on the movement path of one end of the supporting seat 301. The screw rod 303 is arranged at the other end of the supporting seat 301, the nut 304 is arranged on the screw rod 303, and the bottom plate positioning clamp plate 302 is located between the nut 304 and the supporting seat 301 and is provided with a circular hole through which the screw rod 303 passes.

[0041] The bottom plate is placed on the four supporting seats 301, at this time, the abutting plate is located between the four bottom plate positioning clamp plates 302, the spacing between the corresponding two bottom plate positioning clamp plates 302 is adjusted by tightening each nut 304, until the four bottom plate positioning clamp plates 302 clamp and position the bottom plate at the corresponding splicing position.

[0042] In order to prevent the bottom plate positioning clamp plate 302 from rotating around the screw rod 303 and not easily clamping and positioning the bottom plate, the circumferential limiting rod 5 parallel to the screw rod 303 is arranged on the bottom plate positioning clamp plate 302, and the supporting seat 301 is provided with an insertion hole in which the circumferential limiting rod 5 is slidably inserted.

[0043] The inside of the rib plate positioning column 201 is provided with a cylindrical hole 11, the bottom plate displacement mechanism 4 comprises a lifting piston rod 401 and a conduit 402 communicated with the cylindrical hole 11, one end of the lifting piston rod 401 is slidably arranged in the cylindrical hole 11, and the bottom plate positioning mechanism 3 is arranged on the lifting piston rod 401. An external oil pump or air pump pumps fluid medium into and out of the cylindrical hole 11 through the conduit 402, so as to realize the lifting of the lifting piston rod 401.

[0044] The working principle of the present application is as follows:

[0045] The positions of the positioning columns 201 of the various webs are moved according to the lengths of the various webs, and the bases of the positioning columns 201 of the webs are fixed on the base 202 through positioning bolts, at this time, the four positioning columns 201 of the webs are opposite to each other in pairs. The two ends of the long web are respectively inserted into the web limiting grooves 6 on the inner sides of the two positioning columns 201 of the web corresponding to the two ends, the width of the web limiting groove 6 is adapted to the thickness of the web, the distance between the groove walls of the two web limiting grooves 6 at the two ends of the long web is adapted to the length of the long web, the distance between the groove walls of the web limiting groove 6 on one side of the long web to the positioning column 201 on the same side is adapted to the length of the short web, that is, the positioning column 201 cooperates with the web on the opposite side or the positioning column 201 on the opposite side to clamp and position the web between them. After the bottom plate is placed on the four supporting seats 301 around, the four nuts 304 around are rotated to push the bottom plate positioning clamping plates 302 to be close to the bottom plate, so as to clamp and position the bottom plate, and the positioning position of the bottom plate can be adjusted. After the web and the bottom plate are positioned, the welding equipment or workers in the welding area weld the adjacent webs, then the hydraulic oil or air in the cylindrical hole 11 is drawn out through the conduit 402, the lifting piston rod 401 drives the supporting seat 301 to descend, when the supporting seat 301 descends to the position where the bottom plate is about to be spliced with the web, the supporting seat 301 contacts the transmission piston rod 801 below and is connected, and drives the transmission piston rod 801 to move downward, so that the hydraulic oil or air in the air hole 10 and the through hole 7 is compressed, to drive each abutment, until the bottom plate is spliced with the web, at this time, each abutment 9 clamps and positions the web, and then the welding of the web and the bottom plate is started. During the whole welding process, the positioner 1 rotates the base 202 to rotate the web and the bottom plate, so as to facilitate the welding of the welds in different directions of the tower leg.

[0046] It is to be understood by those skilled in the art that the present application can be carried out by other embodiments without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed above are merely exemplary in all aspects and are not restrictive. All changes within the scope of the present application or equivalent to the scope of the present application are intended to be included in the present application.

Claims

1. A power transmission tower leg welding apparatus, characterized by, The application relates to a positioning device for a welding area, which comprises a positioner (1), a web plate positioning mechanism (2), a bottom plate positioning mechanism (3) and a bottom plate displacement mechanism (4), the positioner (1) is provided with a welding area on the side, the web plate positioning mechanism (2) is arranged on the positioning disc of the positioner (1), and the bottom plate positioning mechanism (3) is arranged on the web plate positioning mechanism (2) through the bottom plate displacement mechanism (4). The web plate positioning mechanism (2) comprises web plate positioning columns (201) and a base (202), the base (202) is arranged on the positioning disc of the positioner (1), a plurality of web plate positioning columns (201) are arranged on the base (202), one side of the web plate positioning column (201) is provided with a web plate limiting groove (6), the width of the web plate limiting groove (6) is adapted to the thickness of the web plate, the web plate positioning column (201) is matched with the web plate positioning column (201) on the opposite side to clamp and position the web plate between the two web plate positioning columns (201). A through hole (7) in communication with the web plate limiting groove (6) is arranged in the web plate positioning column (201), a resisting column (9) in sliding sealing cooperation with the hole wall of the through hole (7) is inserted into the through hole (7), a hydraulic drive mechanism (8) connected with the resisting column (9) is arranged in the web plate positioning column (201), and the resisting column (9) clamps and positions the web plate by means of the driving of the hydraulic drive mechanism (8). The hydraulic drive mechanism (8) comprises a transmission piston rod (801) and a reset spring (802), the inside of the web plate positioning column (201) is provided with an air hole (10) in communication with the through hole (7), one end of the transmission piston rod (801) is inserted into the air hole (10) and is in sliding sealing cooperation, the reset spring (802) is sleeved on the transmission piston rod (801), one end of the reset spring (802) is connected with the web plate positioning column (201) and the other end is connected with the transmission piston rod (801). The transmission piston rod (801) is located on the movement path of the bottom plate positioning mechanism (3), the bottom plate positioning mechanism (3) drives the transmission piston rod (801) in the process of moving towards the web plate, so that the transmission piston rod (801) drives the resisting column (9) to clamp and position the web plate inserted into the web plate limiting groove (6) by means of the fluid medium in the air hole (10). The bottom plate positioning mechanism (3) comprises a plurality of supporting seats (301) corresponding to the number of the web plate positioning columns (201), a bottom plate positioning clamp plate (302), a screw rod (303) and a nut (304), the supporting seats (301) are horizontally arranged on the bottom plate displacement mechanism (4), and the transmission piston rod (801) is located on the movement path of one end of the supporting seat (301). The screw rod (303) is arranged at the other end of the supporting seat (301), the nut (304) is arranged on the screw rod (303), the bottom plate positioning clamp plate (302) is located between the nut (304) and the supporting seat (301) and is provided with a circular hole through which the screw rod (303) passes. The inside of the rib plate positioning column (201) is provided with a cylindrical hole (11), the bottom plate displacement mechanism (4) comprises a lifting piston rod (401) and a guide pipe (402) in communication with the cylindrical hole (11), one end of the lifting piston rod (401) is inserted into the cylindrical hole (11) and is in sliding seal, the other end of the lifting piston rod (401) is connected with the supporting seat (301).

2. The power transmission tower leg welding apparatus according to claim 1, wherein The rib plate positioning column (201) is provided with four, the rib plate limiting grooves (6) on the opposite two rib plate positioning columns (201) are located on the same straight line, the rib plate limiting grooves (6) on the adjacent two rib plate positioning columns (201) are non-parallelly arranged.

3. The power transmission tower leg welding apparatus according to claim 1, wherein The rib plate limiting groove (6) is provided with a through hole (7) and a resisting column (9) on both sides and the groove wall between the both sides.

4. The electric transmission tower leg welding apparatus according to claim 1, wherein, The bottom plate positioning clamping plate (302) is provided with a circumferential limiting rod (5) parallel to the screw rod (303), and the supporting seat (301) is provided with a insertion hole for the circumferential limiting rod (5) to slide and insert.

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