CN106695500B - Wind turbine blade root molding seam grinding device - Google Patents

Abstract

The utility model relates to a grinding device for the clamping seam at the root of a wind power blade, which belongs to the field of wind power blade processing equipment. It includes a telescopic beam (2), a telescopic shaft, a lateral positioning and pushing mechanism, a grinding positioning device and two sets of blade grinding mechanisms (4), and a walking mechanism is provided between the two ends of the telescopic beam (2) and the bracket (5); the telescopic shaft The two ends are respectively connected to the traveling mechanism through universal joints (14); the lateral positioning and pushing mechanism pushes the telescopic beam (2) and the telescopic shaft to expand and contract laterally; two sets of blade grinding mechanisms (4) are respectively arranged at both ends of the telescopic beam (2) , there is an elastic buffer mechanism between the blade grinding mechanism (4) and the telescopic beam (2), and the elastic buffer mechanism pushes the blade grinding mechanism (4) downward; the grinding positioning device is fixed at the lower end of the elastic buffer mechanism, and the blade (1) Contact positioning of the surface to be polished. The invention has a simple structure, can automatically adjust according to the slope of the blade (1), and can automatically expand and contract.

Description

Grinding device for clamping seam of wind turbine blade root

technical field

The utility model relates to a grinding device for the clamping seam at the root of a wind power blade, which belongs to the field of wind power blade processing equipment.

Background technique

Most wind turbine blades are made of glass fiber reinforced epoxy resin as their main material, and are vacuum infused. Each wind turbine blade is formed by butting two parts. Before the butt joint, the joint of the root of the wind turbine blade needs to be polished. In the past, the grinding of wind turbine blades was done manually, with a large workload and low work efficiency. The dust produced during the time is very harmful to the human body, and it is easy for the human body to suffer from respiratory diseases. Moreover, the two end surfaces of wind turbine blades are not of the same height, and it is difficult to achieve simultaneous grinding on both sides by mechanical equipment, and the machining accuracy cannot be guaranteed.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a wind power blade root clamping seam grinding device that can automatically adjust according to the slope of the blade, can automatically expand and contract, and has a simple structure.

The technical solution adopted by the present invention to solve the technical problem is: the grinding device for the clamping seam at the root of the wind power blade includes: a telescopic beam, a telescopic shaft, a lateral positioning and pushing mechanism, a grinding positioning device and two sets of blade grinding mechanisms, and the telescopic beam is free horizontally. The telescopic one is set on the support, and there is a walking mechanism between the two ends of the telescopic beam and the support; the telescopic shaft is free to expand and contract horizontally, and the two ends are respectively connected to the walking mechanism through a universal joint, and one walking mechanism is connected to a walking power unit; The mechanism is set on the walking mechanism, or between the telescopic beam and the support, to push the telescopic beam and the telescopic shaft to expand and contract laterally; two sets of blade grinding mechanisms are respectively arranged at both ends of the telescopic beam, and the There is an elastic buffer mechanism, and the elastic buffer mechanism pushes the blade grinding mechanism downward; the grinding positioning device is fixed at the lower end of the elastic buffer mechanism, and is positioned in contact with the surface of the blade to be polished.

The telescopic crossbeam includes a first square tube and a second square pipe which are socketed together; longitudinal beams are fixed at both ends of the telescopic crossbeam, and the longitudinal beam is slidably connected with the bracket, and the traveling mechanism is fixed on the longitudinal beam.

The traveling mechanism includes a traveling gear and a rack. The traveling gear is rotatably arranged at both ends of the telescopic beam, and the rack is fixedly connected to the support. The lateral positioning and pushing mechanism includes positioning guide plates arranged on both sides of the rack.

The rack is fixed in a channel steel, and the two side walls of the channel steel form the positioning guide plate.

The blade grinding mechanism includes a grinding wheel, a fixing seat and a grinding wheel power unit, the grinding wheel is connected to the grinding wheel power unit and fixed on the fixing seat, the lower end of the elastic buffer mechanism is fixedly connected to the fixing seat, and the grinding positioning device is fixed on the front side of the fixing seat .

The elastic buffer mechanism is a cylinder, the piston rod of the cylinder is fixedly connected with the blade grinding mechanism, and the rodless chamber of the cylinder is filled with compressed air and sealed.

The grinding positioning device is a rotatable idler wheel.

Preferably, the roller is made of rubber with a Shore hardness of 41-42.5.

The telescopic shaft includes a first telescopic shaft and a second telescopic shaft that are socketed together, the outer cross section of the first telescopic shaft is polygonal, and the second telescopic shaft has a corresponding inner cavity.

A horizontal adjustment mechanism is provided between the elastic buffer mechanism and the telescopic beam, and the horizontal adjustment mechanism adjusts the horizontal distance between the two grinding wheels.

The horizontal adjustment mechanism includes an adjustment screw, an adjustment handle and an adjustment fixing plate, the adjustment screw is fixed on the upper side of the telescopic beam, the adjustment handle is fixedly connected to one end of the adjustment screw, and the adjustment fixing plate is arranged on the upper side of the telescopic beam for lateral sliding On the side, the upper end of the elastic buffer mechanism is connected with the adjustment fixed plate, and a dust suction fan is also fixed on the upper side of the adjustable fixed plate.

Compared with the prior art, the beneficial effect of the present invention is that both the telescopic beam and the telescopic shaft are free to expand and contract, and the lateral positioning and moving mechanism is pushing the telescopic beam and the telescopic shaft to expand and contract laterally, which can be adjusted according to the characteristics of the blades gradually increasing , so that the blade grinding mechanism always grinds the surface to be processed. An elastic buffer mechanism is provided between the blade grinding mechanism and the telescopic beam. The lower end of the elastic buffer mechanism is also equipped with a grinding positioning device. The cost is too high, and it is not suitable for the blade grinding device with serious environmental pollution. The grinding positioning device is used to contact and position the blade surface to be polished. The structure is simple, and the blade grinding mechanism can always grind a certain thickness to ensure that the two blades are completely docked.

Description of drawings

Fig. 1 is a three-dimensional structural schematic view of the wind power blade root clamping seam grinding device installed on the blade.

Fig. 2 is a schematic diagram of a grinding device for a mold joint at the root of a wind power blade.

Fig. 3 is a front view of the device for grinding the clamping seam at the root of the wind power blade.

Figure 4 is a schematic diagram of a fan.

Among them: 1. Blade 2 telescopic beam 201, first square tube 202, second square tube 3, cylinder 4, blade grinding mechanism 401, grinding wheel 402, grinding motor 403, fixing seat 5, bracket 6, guide rail 7, adjusting screw 8 , Dust suction fan 9, adjustment fixed plate 10, adjustment handle 11, travel motor 12, first telescopic shaft 13, second telescopic shaft 14, universal joint 15, travel gear 16, channel steel 17, positioning guide plate 18, rollers 19, longitudinal beam 20, wheel 21, fan.

Detailed ways

Figures 1 to 3 are the best embodiments of the device for grinding the clamping seam at the root of the wind power blade, and the present invention will be further described below in conjunction with the accompanying drawings 1 to 4.

Referring to Figures 1 to 3, the grinding device for the clamping seam at the root of the wind power blade includes: a telescopic beam 2, a telescopic shaft, a lateral positioning and pushing mechanism, a grinding positioning device and two sets of blade grinding mechanisms 4, and the telescopic beam 2 is set on the On the bracket 5, a traveling mechanism is provided between the two ends of the telescopic beam 2 and the bracket 5; the telescopic shaft is free to expand and contract horizontally, and the two ends are respectively connected to the traveling mechanism through universal joints 14, and one traveling mechanism is connected with a walking power unit; The mechanism is arranged on the walking mechanism, and the lateral positioning and pushing mechanism can also be arranged between the telescopic beam 2 and the support 5, and the telescopic beam 2 and the telescopic shaft are pushed to expand and contract laterally; two sets of blade grinding mechanisms 4 are respectively arranged at both ends of the telescopic beam 2 Part, between the blade grinding mechanism 4 and the telescopic beam 2, an elastic buffer mechanism is arranged, and the elastic buffer mechanism pushes the blade grinding mechanism 4 downward; Both the telescopic beam 2 and the telescopic shaft are free to expand and contract, and the lateral positioning and pushing mechanism pushes the telescopic beam 2 and the telescopic shaft to expand and contract laterally, which can be adjusted according to the characteristics of the gradual increase of the blade 1, so that the blade grinding mechanism 4 always grinds the surface to be processed, and the blade An elastic buffer mechanism is provided between the grinding mechanism 4 and the telescopic beam 2, and a grinding positioning device is provided at the lower end of the elastic buffer mechanism, because the surface of the blade 1 to be polished has a certain slope, the cost of laser detection is too high, and it is not suitable for serious environmental pollution. The grinding device for the blade 1 uses the grinding positioning device to contact and position the surface of the blade 1 to be polished, and has a simple structure, which ensures that the blade grinding mechanism 4 always grinds to a certain thickness and ensures that the two blades 1 are completely docked.

Specifically, the telescopic beam 2 in this embodiment includes a first square tube 201 and a second square tube 202 that are nested together; both ends of the telescopic beam 2 are also fixed with longitudinal beams 19, and the bracket 5 is fixed with a guide rail 6, The longitudinal beam 19 is slidingly connected to the guide rail 6, and the lower side of the support 5 is also provided with a roller 18, because the volume of the blade 1 is very large, after one end is polished, it is usually necessary to move the grinding equipment instead of moving the blade 1, and the grinding device is moved by the roller 18 , easy to use. Utilize the first square tube 201 and the second square tube 202 socket, when the blade 1 narrows or widens, the lateral positioning and pushing mechanism will push the first square tube 201 and the second square tube 202 to move relatively, ensuring that the blade grinding mechanism 4 The blade 1 is always polished, the structure is simple, and no electrical control is required. The telescopic shaft includes a first telescopic shaft 12 and a second telescopic shaft 13 that are socketed together. The outer cross section of the first telescopic shaft 12 is polygonal, and the second telescopic shaft 13 has a corresponding inner cavity. When wide, the lateral positioning pushing mechanism can push the first telescopic shaft 12 and the second telescopic shaft 13 to move relative to each other, so as to ensure the synchronous movement of the two traveling mechanisms.

The traveling mechanism includes a traveling gear 15 and a rack. The traveling gear 15 is rotated and arranged at both ends of the telescopic beam 2, and the rack is fixedly connected to the bracket 5; the rack is fixed in a channel steel 16, and the two side walls of the channel steel 16 form a positioning The guide plate 17, when the traveling gear 15 meshes with the rack and drives the telescopic beam 2 to move longitudinally along the length direction of the blade 1, the rack is arranged along the length direction of the blade 1, and the traveling gear 15 contacts the positioning guide plate 17, thereby driving the telescopic beam 2 The telescopic shaft is telescopic, the structure is simple, and no additional power control and position detection mechanisms are required.

The blade grinding mechanism 4 includes a grinding wheel 401, a fixed seat 403 and a grinding wheel power unit. The grinding wheel 401 is connected with the grinding wheel power unit and fixed on the fixed seat 403. The direction of rotation of the grinding wheel 401 is opposite to that of the telescopic crossbeam 2. The reverse grinding can be used to effectively Reducing the calorific value of the grinding wheel 401 can not only increase the service life of the grinding wheel 401 , but also protect the blade 1 . The elastic buffer mechanism in this embodiment is the cylinder 3, the piston rod at the lower end of the cylinder 3 is fixedly connected with the blade grinding mechanism 4, and the rodless cavity of the cylinder 3 is filled with compressed air and sealed. The grinding and positioning device is the wheel 20 fixed on the front side of the fixed seat 403. The wheel 20 is in contact with the surface to be polished of the blade 1. When the surface to be polished of the blade 1 rises, the wheel 20 will push the piston rod of the cylinder 3 to rise. , thereby driving the fixing seat 403 and the grinding wheel 401 to rise, so as to ensure that the grinding wheel 401 grinds to a specified thickness. Further, in the present invention, the roller 20 is preferably made of rubber. The inventor found in practice that the surface to be polished of the blade 1 is not smooth, and there are some granular protrusions on the surface to be polished of the blade 1. In the present invention, the roller 20 is designed as a rubber material, which can effectively prevent the roller 20 from bouncing, thereby ensuring the smoothness of the grinding surface. The Shore hardness of the roller 20 is 41~42.5. The roller 20 should not only prevent jumping, but also have a certain hardness. It cannot be deformed when climbing a slope, which will affect the positioning accuracy. , then the wheel 20 is easy to deform when climbing a slope, which will cause inaccurate positioning accuracy, and if the hardness is greater than 42.5, the wheel 20 will still jump when encountering a granular bump, so the inventor has gone through many times. After the first experiment, the Shore hardness of the roller 20 was selected to be 41~42.5.

A horizontal adjustment mechanism is arranged between the cylinder 3 and the telescopic beam 2, and the horizontal adjustment mechanism adjusts the horizontal distance between the two grinding wheels 401. Specifically, the horizontal adjustment mechanism includes an adjustment screw 7, an adjustment handle 10 and an adjustment fixed plate 9, the adjustment screw 7 is fixed on the upper side of the telescopic beam 2, the adjustment handle 10 is fixedly connected with one end of the adjustment screw 7, and the adjustment fixed plate 9 horizontal slides are arranged on the upper side of the telescopic beam 2, and the upper end of the cylinder 3 is connected with the adjustment fixed plate 9, and the dust suction fan 8 is also fixed on the upper side of the adjustable fixed plate 9.

Working process: the travel motor 11 drives the travel gear 15 to rotate through the sprocket chain or the synchronous belt. The travel gear 15 meshes with the rack and drives the telescopic beam 2 to move longitudinally. At the same time, the telescopic shaft drives the two travel gears 15 to rotate synchronously. The grinding motor 402 passes The synchronous belt drives the grinding wheel 401 to rotate, and the surface to be polished of the blade 1 is polished, and the wheel 20 is positioned in contact with the blade 1. During the movement of the telescopic beam 2, the wheel 20 rises and falls along with the slope of the surface to be polished of the blade 1, and The grinding wheel 401 is driven up and down synchronously by the cylinder 3, so as to grind the blade 1 with equal thickness. When the width of the blade 1 changes, the traveling gear 15 will contact the positioning guide plate 17, thereby driving the telescopic beam 2 and the telescopic shaft to expand and contract.

Referring to Fig. 4, the present invention is also provided with a fan 21 on the front side of the grinding wheel 401, the fan 21 rotates synchronously with the shaft of the grinding wheel 401 through the gear, and the rotation direction of the fan 21 is opposite to the direction of the grinding wheel 401, the grinding wheel 401 is in the process of grinding A lot of dust will be generated in the workshop, and the dust in the workshop is generally collected by the dust suction system, but in practice, it is found that the dust suction effect is not good after the dust falls, and the dust falls on the grinding surface, which affects the subsequent processing, so the design A fan 21 is provided, and the dust is blown backwards by the fan 21 while grinding. One, the dust can be prevented from falling on the grinding device, and the other is that the dust collection effect of the dust collection equipment can be improved. No extra power is needed, and the structure is simple.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention to other forms. Any skilled person who is familiar with this profession may use the technical content disclosed above to change or modify the equivalent of equivalent changes. Example. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (9)

1. A device for grinding joints at the root of a wind power blade, characterized in that it comprises: The telescopic crossbeam (2), the telescopic crossbeam (2) is set on the bracket (5) freely expandable in the transverse direction, and a walking mechanism is arranged between the two ends of the telescopic crossbeam (2) and the bracket (5); Telescopic shaft, the telescopic shaft is free to expand and contract horizontally, and the two ends are respectively connected to the traveling mechanism through universal joints (14), and one traveling mechanism is connected to a walking power unit; The lateral positioning and pushing mechanism is arranged on the traveling mechanism, or arranged between the telescopic beam (2) and the bracket (5), to push the telescopic beam (2) and the telescopic shaft to expand and contract laterally; Two sets of blade grinding mechanisms (4) are respectively arranged at both ends of the telescopic beam (2). An elastic buffer mechanism is provided between the blade grinding mechanism (4) and the telescopic beam (2). The elastic buffer mechanism pushes the blade grinding downwards. institution (4); The grinding positioning device is fixed at the lower end of the elastic buffer mechanism, and is positioned in contact with the surface of the blade (1) to be polished; The telescopic beam (2) includes a first square tube (201) and a second square tube (202) that are socketed together; longitudinal beams (19) are fixed at both ends of the telescopic beam (2), and the longitudinal beams (19 ) is slidingly connected with the bracket (5), and the running gear is fixed on the longitudinal beam (19). 2. The device for grinding the clamping seam at the root of wind power blades according to claim 1, characterized in that: the traveling mechanism includes a traveling gear (15) and a rack, and the traveling gear (15) is rotated and arranged on the telescopic beam (2). At both ends, the rack is fixedly connected to the bracket (5); the lateral positioning and moving mechanism includes positioning guide plates (17) arranged on both sides of the rack. 3. The device for grinding the clamping seam at the root of wind power blades according to claim 2, characterized in that: the rack is fixed in a channel steel (16), and the two side walls of the channel steel (16) form the positioning guide plate (17). 4. The device for grinding the clamping seam at the root of a wind power blade according to claim 1, characterized in that: the blade grinding mechanism (4) includes a grinding wheel (401), a fixing seat (403) and a grinding wheel power unit, the grinding wheel (401) It is connected with the grinding wheel power unit and fixed on the fixed seat (403), the lower end of the elastic buffer mechanism is fixedly connected with the fixed seat (403), and the grinding positioning device is fixed on the front side of the fixed seat (403). 5. The device for grinding the clamping seam at the root of wind power blades according to claim 1 or 4, characterized in that: the elastic buffer mechanism is a cylinder (3), and the piston rod of the cylinder (3) is fixed to the blade grinding mechanism (4) Connected, the rodless cavity of the cylinder (3) is filled with compressed air and sealed. 6. The device for grinding mold joints at the root of wind power blades according to claim 1 or 4, characterized in that: the grinding and positioning device is a roller (20) arranged for rotation. 7. The device for grinding the clamping seam at the root of a wind turbine blade according to claim 1, characterized in that: the telescopic shaft includes a first telescopic shaft (12) and a second telescopic shaft (13) that are socketed together, the first The outer section of the telescopic shaft (12) is polygonal, and the second telescopic shaft (13) has a corresponding inner cavity. 8. The device for grinding mold joints at the root of wind power blades according to claim 1, characterized in that: a horizontal adjustment mechanism is provided between the elastic buffer mechanism and the telescopic beam (2), and the horizontal adjustment mechanism adjusts the two grinding wheels (401 ) between the horizontal spacing. 9. The device for grinding the clamping seam at the root of wind power blades according to claim 8, characterized in that: the horizontal adjustment mechanism includes an adjustment screw (7), an adjustment handle (10) and an adjustment fixing plate (9), and the adjustment wire The bar (7) is fixed on the upper side of the telescopic beam (2), the adjustment handle (10) is fixedly connected with one end of the adjustment screw (7), and the adjustment fixing plate (9) is horizontally slid and set on the upper side of the telescopic beam (2) , the upper end of the elastic buffer mechanism is connected with the adjustment fixing plate (9), and a dust suction fan (8) is also fixed on the upper side of the adjustment fixing plate (9).