Bolt fastening device for wind driven generator

Abstract

The utility model relates to the field of bolt fastening auxiliary devices, in particular to a bolt fastening device for a wind driven generator, a first threaded rod is arranged at the output end of a bidirectional motor, the other end of the first threaded rod extends into a first lifting cavity, and the surface of the first threaded rod is in threaded connection with a bolt fastening plate; the bolt fastening plate extends into the cavity, a telescopic rod is arranged on the inner wall of the groove, an extrusion spring is arranged on the inner wall of the groove and located outside the telescopic rod, extrusion plates are arranged on the back faces of the extrusion spring and the telescopic rod, and a distance sensor is arranged in the bolt fastening plate. When the bolt is located between the bolt fastening plates, the bidirectional motor is started, the first threaded rod rotates to enable the bolt fastening plates to move towards the bolt, the bolt fastening effect is achieved through extrusion force, meanwhile, the bolt makes contact with the extrusion plate and compresses the extrusion spring, and fastening of the bolt is further achieved under the resilience force effect of the extrusion spring. And the displacement is monitored through the distance sensor.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of bolt fastening auxiliary devices, in particular to a bolt fastening device for a wind driven generator. BACKGROUND

[0002] A wind driven generator set comprises a wind wheel and a generator; the wind wheel comprises blades, a hub, reinforcing members and the like; the wind driven generator set has the functions of rotating the blades to generate electricity under the action of wind force and rotating the head of the generator.

[0003] The existing fastening device only has the function of fastening, and is prone to loosening after long-term use and long-term vibration of the wind driven generator set, which may cause safety hazards. CONTENT OF THE UTILITY MODEL

[0004] The application provides a bolt fastening device for a wind driven generator, so as to solve the technical problem that the inventor realizes that the existing fastening device only has the function of fastening, and is prone to loosening after long-term use and long-term vibration of the wind driven generator set, which may cause safety hazards.

[0005] The application provides a bolt fastening device for a wind driven generator, which comprises a shell, a cavity and a first lifting cavity are formed in the interior of the shell, the cavity and the first lifting cavity are communicated, a bidirectional motor and a controller are arranged in the interior of the shell, a first threaded rod is arranged at the output end of the bidirectional motor, the other end of the first threaded rod extends into the interior of the first lifting cavity, a bolt fastening plate is threadedly connected to the surface of the first threaded rod, the bolt fastening plate extends into the interior of the cavity, a recess is formed in the interior of the bolt fastening plate, a telescopic rod is arranged on the inner wall of the recess, an extrusion spring is arranged on the inner wall of the recess and outside the telescopic rod, an extrusion plate is arranged on the back surfaces of the extrusion spring and the telescopic rod, a distance sensor is arranged in the interior of the bolt fastening plate, the distance sensor is used for monitoring the distance between the bolt fastening plate and the extrusion plate, and the distance sensor and the bidirectional motor are electrically connected with the controller.

[0006] In any of the above technical solutions, further, a second lifting cavity is formed in the interior of the shell, the second lifting cavity and the cavity are in communication, a second threaded rod is movably connected to the inner wall of the second lifting cavity, a nut fastening plate is arranged on the surface of the second threaded rod, the bolt fastening plate extends to the interior of the cavity, and a transmission member is further arranged, the first threaded rod and the second threaded rod are connected through the transmission member.

[0007] In any of the above technical solutions, further, the transmission member comprises a transmission roller and a transmission belt, a transmission cavity is formed in the interior of the shell, the first lifting cavity and the second lifting cavity are in communication with the transmission cavity, the other end of the first threaded rod and the second threaded rod is movably connected to the inner wall of the transmission cavity, the number of the transmission rollers is plural, and the transmission rollers are arranged on the surface of the first threaded rod and the second threaded rod respectively, and the surface of the transmission belt is in abutment with the surface of the transmission roller.

[0008] In any of the above technical solutions, further, a terminal is further arranged, the terminal comprises a display and a wireless communicator, the display and the wireless communicator are electrically connected, and the wireless communicator is in communication connection with the controller.

[0009] In any of the above technical solutions, further, a battery is arranged in the interior of the shell, and the battery is used for supplying power to the distance sensor, the bidirectional motor and the controller.

[0010] In any of the above technical solutions, further, a charging hole is formed in the front surface of the shell.

[0011] In any of the above technical solutions, further, a dustproof cover is hingedly connected to the front surface of the shell, and a plug is arranged on the surface of the dustproof cover, the plug can be inserted into the charging hole.

[0012] In any of the above technical solutions, further, a soft pad is arranged on the surface of the bolt fastening plate.

[0013] In any of the above technical solutions, further, anti-skid lines are formed on the surface of the soft pad.

[0014] Further, the number of the nut extrusion plates is multiple, the number of the telescopic rods, the extrusion springs, the extrusion plates, the bolt extrusion plates, the transmission members, the first lifting cavities, the second lifting cavities, the transmission cavity, the first threaded rods and the second threaded rods matches the number of the nut extrusion plates, and the multiple telescopic rods, the extrusion springs, the extrusion plates, the first lifting cavities, the second lifting cavities, the transmission cavity, the first threaded rods, the second threaded rods, the transmission members, the nut extrusion plates and the bolt extrusion plates are arranged horizontally symmetrically with respect to the shell.

[0015] The beneficial effects of the present application mainly lie in:

[0016] The shell is fixed to the inner wall of the generator set, the nut and the bolt are located between the bolt fastening plate and the nut fastening plate, then the bidirectional motor is started, the first threaded rod is rotated, the second threaded rod is synchronously rotated through the transmission member, the bolt fastening plate and the nut fastening plate are displaced to the bolt and the nut until they contact each other, the fastening effect of the bolt is realized under the extrusion force, the bolt contacts the extrusion plate and compresses the extrusion spring, the fastening of the bolt is further realized under the resilience of the extrusion spring, and when the bolt is loose, the extrusion plate is displaced, and the displacement amount is monitored through the distance sensor.

[0017] It should be understood that both the foregoing general description and the following detailed description are intended for purposes of illustration and description, and are not intended to limit the application. The accompanying drawings are referred to, which illustrate the subject matter of the present application. Also, the description and drawings are to be used for explaining the principles of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the specific embodiments or prior art of the present application, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0019] Figure 1 The structure schematic diagram (front view) of the fastening device of the embodiment of the present application;

[0020] Figure 2 The structure schematic diagram of the fastening device of the embodiment of the present application Figure 1 (front view cross-sectional view);

[0021] Figure 3 The structure schematic diagram of the fastening device in the embodiment of the present application Figure 2 (front view cross-sectional view);

[0022] Figure 4 Figure 1 is a schematic view (side view) of the structure of the fastening device in the embodiment of the present application;

[0023] Figure 5 Figure 2 is an enlarged schematic view of the structure at A in the embodiment of the present application; Figure 2

[0024] Figure 6 Figure 3 is an enlarged schematic view of the structure at B in the embodiment of the present application; Figure 3

[0025] Figure 7 Figure 4 is an enlarged schematic view of the structure at C in the embodiment of the present application. Figure 4 Figure 1 is a schematic view (side view) of the structure of the fastening device in the embodiment of the present application;

[0026]

[0027] 100 - housing; 101 - cavity; 102 - first lifting cavity; 103 - bidirectional motor; 104 - controller; 105 - first threaded rod; 106 - bolt fastening plate; 107 - groove; 108 - telescopic rod; 109 - extrusion spring; 110 - distance sensor; 111 - second lifting cavity; 112 - second threaded rod; 113 - nut fastening plate; 114 - transmission roller; 115 - transmission belt; 116 - transmission cavity; 117 - battery; 118 - charging hole; 119 - dustproof cover; 120 - soft pad; 121 - plug; 122 - extrusion plate. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments of the present application.

[0029] Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] ​​​In the description of the present application, it should be explained that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 And Figure 7 , in one or more embodiments, a bolt fastening device for wind turbine is provided, comprising a shell 100, a cavity 101 and a first lifting cavity 102 are arranged in the shell 100, the cavity 101 and the first lifting cavity 102 are communicated, a bidirectional motor 103 and a controller 104 are arranged in the shell 100, a first threaded rod 105 is arranged at the output end of the bidirectional motor 103, the other end of the first threaded rod 105 extends into the first lifting cavity 102, a bolt fastening plate 106 is threadedly connected to the surface of the first threaded rod 105, the bolt fastening plate 106 extends into the cavity 101, a recess 107 is arranged in the bolt fastening plate 106, a telescopic rod 108 is arranged on the inner wall of the recess 107, an extrusion spring 109 is arranged on the inner wall of the recess 107 and outside the telescopic rod 108, an extrusion plate 122 is arranged on the back of the telescopic rod 108 and the extrusion spring 109, a distance sensor 110 is arranged in the bolt fastening plate 106, the distance sensor 110 is used for monitoring the distance between the bolt fastening plate 106 and the extrusion plate 122, the distance sensor 110 and the bidirectional motor 103 are electrically connected with the controller 104, a soft pad 120 is arranged on the surface of the bolt fastening plate 106, anti-skid lines are arranged on the surface of the soft pad 120, the number of the nut extrusion plates 122 is multiple, the number of the telescopic rods 108, the extrusion springs 109, the extrusion plates 122, the bolt extrusion plates 122, the transmission members, the first lifting cavity 102, the second lifting cavity 111, the transmission cavity 116, the first threaded rod 105 and the second threaded rod 112 matches the number of the nut extrusion plates 122, the multiple telescopic rods 108, the extrusion springs 109, the extrusion plates 122, the first lifting cavity 102, the second lifting cavity 111, the transmission cavity 116, the first threaded rod 105, the second threaded rod 112, the transmission members, the nut extrusion plates 122 and the bolt extrusion plates 122 are arranged symmetrically with the horizontal line of the shell 100.

[0033] In this embodiment, the shell 100 is fixed to the inner wall of the generator set, the bolts are located between the bolt fastening plates 106, at this time the bolts will be in contact with the extrusion plate 122, and will extrude the extrusion plate 122, at this time the compression spring is in a compressed state, then start the bidirectional motor 103, make the threaded rod 105 rotate, make the bolt fastening plate 106 displace to the bolt direction and extrude the bolt, and then realize the effect of fastening the bolt, under the action of the rebound force of the extrusion spring 109, further improve the probability of bolt loosening, wherein the bolt loosening will change the length of the bolt in the shell 100, and then change the actual position of the extrusion plate 122, through the monitoring of the distance sensor 110 and the actual distance, and then know the situation, when the distance exceeds the set threshold, remind the staff; wherein the soft pad 120 is suitable for different types of bolts, and can also protect the bolts from wear.

[0034] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 And Figure 7 , in some embodiments, the inside of the shell 100 is provided with a second lifting cavity 111, the second lifting cavity 111 is in communication with the cavity 101, the inner wall of the second lifting cavity 111 is movably connected with a second threaded rod 112, the surface of the second threaded rod 112 is provided with a nut fastening plate 113, the bolt fastening plate 106 extends to the inside of the cavity 101, further comprising a transmission member, the first threaded rod 105 and the second threaded rod 112 are connected through the transmission member, the transmission member comprises a transmission roller 114 and a transmission belt 115, the inside of the shell 100 is provided with a transmission cavity 116, the first lifting cavity 102 and the second lifting cavity 111 are in communication with the transmission cavity 116, the other end of the first threaded rod 105 and the second threaded rod 112 are movably connected with the inner wall of the transmission cavity 116, the number of transmission rollers 114 is multiple, multiple transmission rollers 114 are respectively arranged on the surface of the first threaded rod 105 and the second threaded rod 112, the surface of the transmission belt 115 is in abutment with the surface of the transmission roller 114, the number of nut extrusion plates 122 is multiple, the number of the telescopic rods 108, the extrusion springs 109, the extrusion plates 122, the bolt extrusion plates 122, the transmission member, the first lifting cavity 102, the second lifting cavity 111, the transmission cavity 116, the first threaded rod 105 and the second threaded rod 112 matches with the number of the nut extrusion plates 122, multiple telescopic rods 108, extrusion springs 109, extrusion plates 122, first lifting cavity 102, second lifting cavity 111, transmission cavity 116, first threaded rod 105, second threaded rod 112, transmission member, nut extrusion plate 122 and bolt extrusion plate 122 are arranged symmetrically with the horizontal line of the shell 100.

[0035] In this embodiment, when the first threaded rod 105 rotates, the transmission roller 114 on the first threaded rod 105 also rotates accordingly. Through the transmission belt 115, it drives the transmission roller 114 on the second threaded rod 112 to rotate. The second threaded rod 112 rotates along with its transmission rod. The rotation of the second threaded rod 112 will cause the nut fixing plate to move towards the nut and squeeze the nut to ensure that the nut position is fixed, thereby ensuring the tightness of the nut fastening the bolt. The bolt fastening plate 106 and the nut fastening plate 113 may or may not be connected. It is necessary to ensure that the recessed positions of the bolt fastening plate 106 and the nut fastening plate 113 match the connection positions of the bolt and nut.

[0036] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In some embodiments, a terminal is also included, which includes a display and a wireless communication device. The display and the wireless communication device are electrically connected, and the wireless communication device is communicatively connected to the controller 104. A battery 117 is disposed inside the housing 100. The battery 117 is used to power the distance sensor 110, the bidirectional motor 103, and the controller 104. A charging hole 118 is provided on the front of the housing 100. A dust cover 119 is hinged to the front of the housing 100. A plug 121 is provided on the surface of the dust cover 119. The plug 121 can be inserted into the charging hole 118.

[0037] In this embodiment, the controller 104 can control the bidirectional motor 103 to work, and the data monitored by the distance sensor 110 will be transmitted to the wireless communication device through the controller 104 and displayed on the display. When a bolt is loose, it can remind the staff. The battery 117 can power the bidirectional motor 103, the controller 104 and the distance sensor 110, and the battery 117 can be charged through the charging port 118. Flip the dust cover 119 and insert the plug 121 into the charging port 118 to prevent the charging port 118 from being blocked by dust and affecting the charging efficiency. The terminal can be a mobile phone, computer, tablet, etc., and the communication connection can be 4G, 5G, WIFI, local area network, Bluetooth, etc.

[0038] It should be noted that the specific models and specifications of the battery 117, bidirectional motor 103, controller 104, distance sensor 110, wireless communicator, and display in this disclosure need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here. Its power supply and its principle are clear to those skilled in the art, and will not be described in detail here. The connection and installation of its various parts and the signal transmission principle are well known in this field.

[0039] Specifically, the working principle of the bolt fastening device for a wind turbine provided in the application is as follows:

[0040] The shell 100 is fixed to the inner wall of the generator set, and the bolts are located between the bolt fastening plates 106. At this time, the bolts will be in contact with the extrusion plates 122 and will extrude the extrusion plates 122. At this time, the compression spring is in a compressed state. Then, the bidirectional motor 103 is started, and the first threaded rod 105 is rotated, so that the bolt fastening plate 106 is displaced to the bolt direction and extrudes the bolt, thereby achieving the effect of fastening the bolt. Under the action of the rebound force of the extrusion spring 109, the probability of bolt loosening is further improved. Since the loosening of the bolt changes the length of the bolt in the shell 100, the actual position of the extrusion plate 122 is changed. The actual distance is monitored by the distance sensor 110, and the monitoring data of the distance sensor 110 is transmitted to the wireless communicator by the controller 104 and displayed by the display. When the distance exceeds the set threshold value, the display reminds the worker.

[0041] When the first threaded rod 105 rotates, the transmission roller 114 on the first threaded rod 105 also rotates, and the transmission roller 114 on the second threaded rod 112 is driven to rotate by the transmission belt 115. The second threaded rod 112 rotates with the transmission rod thereon. The rotation of the second threaded rod 112 will cause the nut fixing plate to be displaced to the nut direction and extrude the nut, so as to fix the position of the nut and ensure the fastening firmness of the nut to the bolt.

[0042] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A bolt fastening device for a wind turbine, characterized in that The utility model provides a kind of lifting device, including shell, the inside of the shell is opened with cavity and No.

2. A bolt fastening device for a wind turbine generator according to claim 1, characterized in that, The inside of the shell is opened with No.

3. A bolt fastening device for a wind turbine generator according to claim 2, characterized in that The inside of the shell is opened with transmission cavity, the No.

4. A bolt fastening device for a wind turbine generator according to claim 1, characterized in that, The inside of the shell is provided with battery, and the battery is used to power the distance sensor, the bidirectional motor and the controller.

5. A bolt fastening device for a wind turbine generator according to claim 1, characterized in that, The front of the shell is opened with charging hole.

6. A bolt fastening device for a wind turbine generator according to claim 5, characterized in that The front of the shell is hinged with dust cover, the surface of the dust cover is provided with plug, and the plug can be inserted into the charging hole.

7. A bolt fastening device for a wind turbine generator according to claim 6, characterized in that The surface of the bolt fastening plate is provided with soft pad.

8. A bolt fastening device for a wind turbine generator according to claim 1, characterized in that, The surface of the soft pad is opened with anti-skid line.

9. A bolt fastening device for a wind turbine generator according to claim 8, characterized in that The number of nut extrusion plate is multiple, and the number of the telescopic rod, the extrusion spring, the extrusion plate, the bolt extrusion plate, the transmission member, the No.

10. A bolt fastening device for a wind turbine generator according to claim 2, characterized in that, The number of nut extrusion plate is multiple, and the number of the telescopic rod, the extrusion spring, the extrusion plate, the bolt extrusion plate, the transmission member, the No.

Images