Displacement device for welding main beam of heliostat bracket

Abstract

The invention discloses a displacement device for welding a main beam of a heliostat support, which comprises a frame type rack serving as a mounting foundation, the rack is divided into a left rack and a right rack, and roller carrier rollers for supporting the main beam are uniformly distributed and mounted on the left rack and the right rack at intervals; adjustable bottom feet are uniformly mounted at the lower ends of the left rack and the right rack, the distance between the left rack and the right rack is adjusted according to the length of the main beam, the adjustable bottom feet are fixed to the ground after adjustment, and the left rack and the right rack are adjusted to the same horizontal height through the adjustable bottom feet; a head component for positioning and clamping one end of the main beam and realizing rotary displacement is mounted on the left rack, and a tail component matched with the head component to realize axial positioning of the main beam is mounted on the right rack. The welding position and angle can be flexibly adjusted, welding is convenient, the welding quality and efficiency are improved through accurate displacement, the labor intensity of workers is reduced, the welding device can adapt to welding of main beams of different specifications, and diversified production requirements are met.

Description

Technical Field

[0001] The invention belongs to the technical field of manufacturing concentrated solar thermal power generation components, and in particular relates to a displacement device for welding a main beam of a heliostat support. Background Art

[0002] Solar thermal power generation is an important direction of new energy utilization. Its basic principle is to use solar energy to convert light energy into heat energy, and then convert heat energy into electrical energy.

[0003] With the rapid growth of global energy demand and the increasingly prominent limitation of traditional fossil energy, solar thermal power generation, as a renewable energy technology with great potential, has become a rising star in the field of new energy, and the solar thermal power generation market is ushering in a new wave of development.

[0004] Heliostat is one of the key components of tower solar thermal power station. As an important part of heliostat support, the strength, precision, service life and stability of heliostat support are crucial to the operation of the power station.

[0005] The main beam of the heliostat support is welded by 1 main beam steel pipe, 8 sets of supporting beam plates, 2 main beam supports, and 1 push rod support. The main beam steel pipe and the supporting beam plate are double-sided fillet welded, symmetrical on both sides for a total of 10 places, 8 places with a length of 40mm, 2 places with a length of 12mm, and a weld foot size of 4mm; the main beam steel pipe and the push rod support and the main beam support are all circumferentially welded, and the weld foot size is 3mm.

[0006] As the supporting structure of the heliostat, the main beam has very high dimensional accuracy requirements and large production demand. In the existing technology, it mainly relies on manual welding. The main beam is nearly 6 meters long, many positions need to be welded, and the weld is a spatial curve that needs to be rotated and displaced. Therefore, welding is difficult, labor intensity is high, and production efficiency is low. Traditional manual welding can no longer meet the quality and efficiency requirements of product manufacturing.

[0007] In the prior art, relatively close prior art includes:

[0008] The Chinese patent entitled Multi-station automatic welding method and equipment for main beam of heliostat support and patent number 202010490724.4 is the prior art closest to the present application, which discloses a multi-station automatic welding method for main beam of heliostat support, including the following steps: parts preparation; drilling holes in the main beam steel pipe for the main beam; positioning and assembling the support beam, push rod support welding parts, main beam support welding parts and main beam steel pipe before welding, and manually spot welding and positioning after all parts are in place; using a conveyor to deliver the workpiece after positioning welding to the support beam welding station , the support beam and the main beam steel pipe are welded; the push rod support welding parts are welded with the main beam support welding parts, and the workpiece after the support beam welding is sent to the welding station of the push rod support welding parts and the main beam support welding parts, and the push rod support welding parts, the main beam support welding parts and the main beam steel pipe are welded by using a rotary positioner and a welding robot; unloading and storage; the present invention realizes the multi-station flow-line automatic welding of the main beam of the heliostat bracket, which greatly reduces the labor intensity and cost of workers while ensuring the welding quality, improves the product welding efficiency, and shortens the production cycle.

[0009] The device disclosed in the patent realizes automatic welding through multiple stations and assembly line, which makes the structure relatively complicated overall.

[0010] In view of the above shortcomings of the prior art, the present invention is proposed. Summary of the invention

[0011] In order to overcome the shortcomings of the prior art and solve the problem that the main beam needs to be frequently adjusted in the welding process, which is time-consuming and labor-intensive and cannot meet the production capacity requirements, the present invention provides a displacement device for welding the main beam of a heliostat bracket, which can flexibly adjust the welding position and angle to facilitate welding, and improve the welding quality and efficiency through precise displacement, reduce the labor intensity, and can adapt to the welding of main beams of different specifications to meet diversified production needs.

[0012] The technical solution of the present invention is:

[0013] A displacement device for welding a main beam of a heliostat support includes a frame-type frame 1 as an installation basis, wherein the frame 1 is divided into a left frame and a right frame, wherein:

[0014] The left frame and the right frame are evenly spaced and installed with rollers 4 for supporting the main beam steel pipe 11;

[0015] The lower ends of the left frame and the right frame are evenly installed with adjustable feet 3, and the spacing between the left frame and the right frame is adjusted according to the length of the main beam steel pipe 11. After adjustment, the adjustable feet 3 are fixed to the ground, and the left frame and the right frame are adjusted to the same horizontal height through the adjustable feet 3;

[0016] The left frame is equipped with a head assembly 2 for positioning, clamping and rotating one end of the main beam steel pipe 11, and the right frame is equipped with a tail assembly 6 for cooperating with the head assembly 2 to realize the axial positioning of the main beam steel pipe 11; wherein,

[0017] The head assembly 2 includes: fixing the mounting seat 207 on the upper end surface of the support plate 205 with a hexagonal bolt 7, installing a slider 206 and a cylinder connector 208 on the lower end surface of the support plate 205, installing a cylinder connecting plate 201 and a linear guide 204 at the corresponding position of the left frame, and then inserting the slider 206 into the linear guide 204, and then fixing the locking cylinder 202 on the cylinder connecting plate 201 with a hexagonal bolt 7, and connecting the cylinder connector 208 to the other end of the locking cylinder 202 with a hexagonal socket head screw 214. ; Fix the planetary reducer 209 to the corresponding position of the mounting seat 207 with a hexagon socket head screw 214, then install the clamping claw head 213 to the corresponding position of the three-claw air claw 212 with a hexagon socket head screw 214, and fix it on the positioning baffle 211, and then install the positioning baffle 211 on one end of the air slip ring 210 with a hexagon socket head screw 214, and the other end of the air slip ring 210 is connected to the planetary reducer 209, and finally connect the servo motor 203 to the planetary reducer 209 with a hexagon socket head screw 214;

[0018] The tail assembly 6 includes: fixing the support seat 603 with a hexagonal bolt 7 at the upper end of the support plate 205, and installing the bearing seat 602 on the support seat 603, installing the slider 206 and the cylinder connector 208 at the lower end of the support plate 205, installing the linear guide 204 and the cylinder connecting plate 201 at the corresponding position of the right frame, and then inserting the slider 206 into the linear guide 204, and then fixing the clamping cylinder 605 on the cylinder connecting plate 201 with the hexagonal bolt 7, and connecting the other end of the clamping cylinder 605 to the cylinder connector 208 with a hexagon socket head screw 214; then installing the clamping claw head 213 at the corresponding position of the three-claw air claw 212 with the hexagon socket head screw 214, and fixing the three-claw air claw 212 on the baffle 601, and inserting the shaft end of the baffle 601 into the hole of the bearing seat 602, and fixing it with a fixing ring 604;

[0019] The main beam of the heliostat support is delivered by the conveying device after being spot-welded in the previous workstation, and falls on the roller 4. The telescopic rod of the locking cylinder 202 is extended to drive the head assembly 2 to move rightward as a whole and position it. At the same time, the telescopic rod of the clamping cylinder 605 at the right end is extended to drive the tail assembly 6 to move leftward as a whole. The baffle 601 pushes the main beam steel pipe 11 to move leftward, and stops in close contact with the positioning baffle 211, completing the axial positioning of the main beam.

[0020] Then the clamping claws 213 at both ends are simultaneously opened outwards to complete the clamping of the main beam steel pipe 11;

[0021] The servo motor 203 drives the main beam steel pipe 11 to rotate forward and reverse, and performs rotation displacement, and the welding robot completes the welding of all welds;

[0022] After welding is completed, the clamping claws 213 at both ends are retracted and released, the head assembly 2 and the tail assembly 6 return to their positions, the clamping and positioning of the main beam of the heliostat support is released, and the conveying device conveys the main beam to the next station.

[0023] Preferably, there are at least three clamping jaws 213 distributed along a circumference, and the end faces of the clamping jaws 213 are arc surfaces that fit the inner wall of the main beam steel pipe 11, and the arc surfaces are evenly distributed with transverse grooves.

[0024] Preferably, the roller idler 4 includes a mounting plate 401 fixed to the frame 1 by bolts, a U-shaped roller frame 404 is provided on the mounting plate 401, and bolt needle bearings 402 are fixed to the top ends of both ends of the U-shaped roller frame 404 by locking nuts 403.

[0025] Preferably, a conductive brush 5 is further provided on the right frame, and the outer circle of the steel pipe of the main beam 11 is in full contact with the arc surface of the conductive brush 5 .

[0026] Preferably, the main beam of the heliostat support is welded together by one main beam steel pipe 11 , eight groups of supporting beam plates 8 , one push rod support 9 and two main beam supports 10 .

[0027] Preferably, the main beam steel pipe 11 and the supporting beam plate 8 are double-sided corner welded, with a total of 10 locations symmetrically on both sides, the welding length is 40 mm at 8 locations, 12 mm at two locations, and the weld foot size is 4 mm; the main beam steel pipe 11 and the push rod support 9 and the main beam support 10 are all circumferentially welded, and the weld foot size is 3 mm.

[0028] Beneficial effects:

[0029] 1. The frame of this device is a frame structure with good stability;

[0030] 2. Able to adapt to main beams of different lengths;

[0031] 3. It has a self-locking function to avoid changes in welding position due to sudden power outages, which may affect welding quality;

[0032] 4. Adapt to the welding of space curve welds;

[0033] 5. Use air sliding ring to guide air to avoid entanglement of air pipe and ensure smooth air path;

[0034] 6. It can rotate forward and reverse, and the speed is adjustable to meet the requirements of fast forward and working forward;

[0035] 7. The cylinder with lock can prevent axial movement and has high positioning accuracy;

[0036] 8. This mechanism is safe and reliable, and its operation is programmed, realizing the automation of welding;

[0037] 9. The working conditions have been improved, the production efficiency has been greatly improved on the original basis, and the production capacity has been increased several times.

[0038] Actual use effect:

[0039] A large number of main beams have been produced using this mechanism, which has greatly improved working conditions, reduced labor intensity, greatly increased production efficiency, and improved product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural front view of the present invention;

[0041] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0042] Figure 3 It is a schematic diagram of the structure of the head assembly;

[0043] Figure 4 It is a schematic diagram of the three-dimensional structure of the gripper head;

[0044] Figure 5 It is a schematic diagram of the three-dimensional structure of the roller idler;

[0045] Figure 6 It is a structural schematic diagram of the tail assembly;

[0046] Meaning of the symbols in the attached drawings:

[0047] 1. Frame, 2. Head assembly, 3. Adjustable foot, 4. Roller, 5. Conductive brush, 6. Tail assembly, 7. Hexagonal bolt, 8. Support beam plate, 9. Push rod support, 10. Main beam support, 11. Main beam steel pipe;

[0048] 201. Cylinder connecting plate, 202. Locking cylinder, 203. Servo motor, 204. Linear guide, 205. Support plate, 206. Slider, 207. Mounting seat, 208. Cylinder connecting piece, 209. Planetary reducer, 210. Air slip ring, 211. Positioning baffle, 212. Three-claw air claw, 213. Clamping claw head, 214. Hexagon socket head screw;

[0049] 401. mounting plate, 402. bolt needle bearing, 403. locking nut, 404. roller frame;

[0050] 601. baffle, 602. bearing seat, 603. support seat, 604. fixing ring, 605. clamping cylinder. DETAILED DESCRIPTION

[0051] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Figure 1 This is a structural front view of the present invention. Figure 2 Schematic diagram of the three-dimensional structure of the present invention; combined with the accompanying drawings, a displacement device for welding the main beam of a heliostat support of the present invention includes a frame-type frame 1 as an installation basis, and the frame 1 is divided into a left frame and a right frame, wherein,

[0053] The left frame and the right frame are evenly spaced and installed with rollers 4 for supporting the main beam steel pipe 11;

[0054] The lower ends of the left frame and the right frame are evenly installed with adjustable feet 3, and the spacing between the left frame and the right frame is adjusted according to the length of the main beam steel pipe 11. After adjustment, the adjustable feet 3 are fixed to the ground, and the left frame and the right frame are adjusted to the same horizontal height through the adjustable feet 3;

[0055] The left frame is equipped with a head assembly 2 for positioning, clamping and rotating one end of the main beam steel pipe 11, and the right frame is equipped with a tail assembly 6 for cooperating with the head assembly 2 to realize the axial positioning of the main beam steel pipe 11; wherein,

[0056] like Figure 3 As shown, the head assembly 2 includes: fixing the mounting seat 207 on the upper end surface of the support plate 205 with a hexagonal bolt 7, installing a slider 206 and a cylinder connector 208 on the lower end surface of the support plate 205, installing a cylinder connecting plate 201 and a linear guide 204 at the corresponding position of the left frame, and then inserting the slider 206 into the linear guide 204, and then fixing the locking cylinder 202 on the cylinder connecting plate 201 with a hexagonal bolt 7, and using a hexagon socket head screw 214 to fix the cylinder connector 208 with the other end of the locking cylinder 202. The planetary reducer 209 is fixed to the corresponding position of the mounting seat 207 with a hexagon socket head screw 214, and then the jaw head 213 is installed at the corresponding position of the three-jaw air claw 212 with a hexagon socket head screw 214, and fixed on the positioning baffle 211, and then the positioning baffle 211 is installed on one end of the air slip ring 210 with a hexagon socket head screw 214, and the other end of the air slip ring 210 is connected to the planetary reducer 209, and finally the servo motor 203 is connected to the planetary reducer 209 with a hexagon socket head screw 214;

[0057] like Figure 4As shown, there are at least three clamping claw heads 213 distributed along the circumference, and the end faces of the clamping claw heads 213 are arc surfaces that fit the inner wall of the main beam steel pipe 11, and the arc surfaces are evenly distributed with transverse grooves.

[0058] like Figure 5 As shown, the roller idler 4 includes a mounting plate 401 fixed to the frame 1 by bolts, a U-shaped roller frame 404 is provided on the mounting plate 401, and bolt needle bearings 402 are fixed to the top ends of both ends of the U-shaped roller frame 404 by locking nuts 403.

[0059] like Figure 6 As shown, the tail assembly 6 includes: fixing the support seat 603 with a hexagonal bolt 7 at the upper end of the support plate 205, and installing the bearing seat 602 on the support seat 603, installing the slider 206 and the cylinder connector 208 at the lower end of the support plate 205, installing the linear guide 204 and the cylinder connecting plate 201 at the corresponding position of the right frame, and then inserting the slider 206 into the linear guide 204, and then fixing the clamping cylinder 605 on the cylinder connecting plate 201 with the hexagonal bolt 7, and connecting the other end of the clamping cylinder 605 to the cylinder connector 208 with a hexagon socket head screw 214; then installing the clamping claw head 213 at the corresponding position of the three-claw air claw 212 with a hexagon socket head screw 214, and fixing the three-claw air claw 212 on the baffle 601, and inserting the shaft end of the baffle 601 into the hole of the bearing seat 602, and fixing it with a fixing ring 604;

[0060] Conductive brushes 5 are also provided on the left and right frames, and the outer circle of the main beam steel pipe 11 is in full contact with the arc surface of the conductive brush 5, ensuring that the welding current is directly transmitted to the main beam steel pipe 11 without passing through the bearing.

[0061] After assembly, the two frames 1 must be adjusted to the same horizontal height, and the centers of the four roller idlers 4 must be kept in one line to ensure that the main beam steel pipe 11 is in full contact with the bolt needle bearing 402, and that the outer circle of the main beam steel pipe 11 is in full contact with the arc surface of the conductive brush 5; adjust the consistency of the clamping claw head 213 to ensure that the inner wall of the main beam steel pipe 11 is in full contact with the arc surface of the clamping claw head 213.

[0062] During actual operation, the main beam is delivered by the conveying device after spot welding is completed at the previous workstation, falls on the roller support roller 4, and the telescopic rod of the locking cylinder 202 is extended to drive the head assembly 2 to move rightward as a whole and position it; at the same time, the telescopic rod of the clamping cylinder 605 at the right end is extended to drive the tail assembly 6 to move leftward as a whole, and the baffle 601 pushes the main beam steel pipe 11 to move leftward, and stops in close contact with the positioning baffle 211, completing the axial positioning of the main beam;

[0063] Then the clamping claws 213 at both ends are simultaneously opened outwards to complete the clamping of the main beam steel pipe 11;

[0064] The servo motor 203 drives the main beam steel pipe 11 to rotate forward and reverse, and performs rotation displacement, and the welding robot completes the welding of all welds;

[0065] After welding is completed, the clamping claws 213 at both ends are retracted and released, the head assembly 2 and the tail assembly 6 return to their positions, the clamping and positioning of the main beam of the heliostat support is released, and the conveying device conveys the main beam to the next station.

[0066] The main beam of the heliostat support described in the present invention is welded together by a main beam steel pipe 11, eight groups of supporting beam plates 8, a push rod support 9 and two main beam supports 10.

[0067] The main beam steel pipe 11 and the supporting beam plate 8 are double-sided corner welded, with a total of 10 locations symmetrical on both sides, the welding length is 40mm at 8 locations, 12mm at two locations, and the weld foot size is 4mm; the main beam 11 and the push rod support 9 and the main beam support 10 are all circumferentially welded, and the weld foot size is 3mm.

[0068] The frame 1 of the present invention is a two-stage design, and can be applied to main beams of different lengths by changing the distance between the two frames 1;

[0069] The positioning baffle 211 is in contact with the end face of the main beam steel pipe 11 through a large plane, which avoids the end face verticality error of the main beam steel pipe 11 when cutting and blanking, and ensures the consistent positioning accuracy of the end when multiple stations move;

[0070] The three-jaw chuck is used to change point contact into surface contact, which is beneficial to reducing the deformation of the main beam steel pipe 11; the arc surface of the claw chuck 213 adopts grooves to increase the friction force.

[0071] The described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A displacement device for welding the main beam of a heliostat support, characterized in that: The invention comprises a frame-type rack (1) as an installation base, wherein the rack (1) is divided into a left rack and a right rack, wherein: Roller rollers (4) for supporting the main beam steel pipe (11) are evenly spaced and installed on the left frame and the right frame; The lower ends of the left frame and the right frame are evenly installed with adjustable feet (3), and the distance between the left frame and the right frame is adjusted according to the length of the main beam steel pipe (11). After the adjustment, the adjustable feet (3) are fixed to the ground, and the left frame and the right frame are adjusted to the same horizontal height through the adjustable feet (3); The left frame is provided with a head assembly (2) for positioning, clamping and realizing rotational displacement of one end of the main beam steel pipe (11), and the right frame is provided with a tail assembly (6) for cooperating with the head assembly (2) to realize axial positioning of the main beam steel pipe (11); wherein, The head assembly (2) includes: fixing the mounting seat (207) on the upper end surface of the support plate (205) with a hexagonal bolt (7), installing a slider (206) and a cylinder connector (208) on the lower end surface of the support plate (205), installing a cylinder connector plate (201) and a linear guide rail (204) at corresponding positions on the left frame, then inserting the slider (206) into the linear guide rail (204), and then fixing the locking cylinder (202) on the cylinder connector plate (201) with a hexagonal bolt (7), and connecting the cylinder connector (208) to the other end of the locking cylinder (202) with a hexagonal cylindrical screw (214). Connection: fix the planetary reducer (209) to the corresponding position of the mounting seat (207) with a hexagon socket cylindrical head screw (214), then install the clamping claw head (213) to the corresponding position of the three-claw air claw (212) with a hexagon socket cylindrical head screw (214), and fix it on the positioning baffle (211), and then install the positioning baffle (211) on one end of the air slip ring (210) with a hexagon socket cylindrical head screw (214), and the other end of the air slip ring (210) is connected to the planetary reducer (209), and finally connect the servo motor (203) to the planetary reducer (209) with a hexagon socket cylindrical head screw (214); The tail assembly (6) includes: fixing the support seat (603) with a hexagonal bolt (7) at the upper end of the support plate (205), installing the bearing seat (602) on the support seat (603), installing a slider (206) and a cylinder connecting piece (208) at the lower end of the support plate (205), installing a linear guide rail (204) and a cylinder connecting plate (201) at the corresponding position of the right frame, and then inserting the slider (206) into the linear guide rail (204), and then clamping the cylinder (605) with a hexagonal bolt (7). The bolt (7) is fixed on the cylinder connecting plate (201), and the other end of the clamping cylinder (605) is connected to the cylinder connecting piece (208) by a hexagon socket head screw (214); then the clamping claw head (213) is installed on the corresponding position of the three-claw air claw (212) by a hexagon socket head screw (214), and the three-claw air claw (212) is fixed on the baffle (601), and the axial end of the baffle (601) is inserted into the hole of the bearing seat (602) and fixed by a fixing ring (604); After the main beam of the heliostat support is spot welded at the previous workstation, it is delivered by a conveying device and falls on the roller support roller (4). The telescopic rod of the locking cylinder (202) is extended to drive the head assembly (2) to move rightward as a whole and position it. At the same time, the telescopic rod of the clamping cylinder (605) at the right end is extended to drive the tail assembly (6) to move leftward as a whole. The baffle (601) pushes the main beam steel pipe (11) to move leftward and stops in close contact with the positioning baffle (211), thereby completing the axial positioning of the main beam. Then the clamping claws (213) at both ends are simultaneously opened outwards to complete the clamping of the main beam steel pipe (11); The servo motor (203) drives the main beam steel pipe (11) to rotate forward and reverse, and performs rotation displacement, and the welding robot completes the welding of all welds; After welding is completed, the clamping claws (213) at both ends are retracted and released, the head assembly (2) and the tail assembly (6) are returned to their positions, the clamping and positioning of the main beam of the heliostat support is released, and the conveying device conveys the main beam to the next workstation.

2. A displacement device for welding the main beam of a heliostat support according to claim 1, characterized in that: There are at least three clamping claw heads (213) distributed along the circumference, and the end faces of the clamping claw heads (213) are arc surfaces that fit the inner wall of the main beam steel pipe (11), and the arc surfaces are evenly distributed with transverse grooves.

3. The displacement device for welding the main beam of a heliostat support according to claim 1, characterized in that: The roller support roller (4) comprises a mounting support plate (401) fixed to the frame (1) by bolts, a U-shaped roller frame (404) is provided on the mounting support plate (401), and bolt needle bearings (402) are fixed to the top ends of both ends of the U-shaped roller frame (404) by locking nuts (403).

4. The displacement device for welding the main beam of a heliostat support according to claim 1, characterized in that: The right frame is also provided with a conductive brush (5), and the outer circle of the main beam steel pipe (11) is in full contact with the arc surface of the conductive brush (5).

5. The displacement device for welding the main beam of a heliostat support according to claim 1, characterized in that: The main beam of the heliostat support is welded together by a main beam steel pipe (11), eight groups of supporting beam plates (8), a push rod support (9) and two main beam supports (10).

6. A displacement device for welding the main beam of a heliostat support according to claim 5, characterized in that: The main beam steel pipe (11) and the supporting beam plate (8) are double-sided fillet welded, symmetrically on both sides for a total of 10 locations, with a welding length of 40 mm at 8 locations and 12 mm at two locations, and a weld foot size of 4 mm; the main beam steel pipe (11) and the push rod support (9) and the main beam support (10) are all circumferentially welded, with a weld foot size of 3 mm.

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