Wind turbine gearbox elastic support installation tool and installation method

Abstract

The application discloses a wind turbine gearbox elastic support installation tool and installation method. The elastic support has four parts which are symmetrically installed on the two sides of the front frame of the wind turbine through the installation tool. The installation tool comprises positioning pins, clamping arm mechanisms, screw rods and nuts. Two positioning pins are arranged on each elastic support. One end of the positioning pin is connected with the front frame, and the other end of the positioning pin penetrates into the elastic support. The clamping arm mechanisms are arranged on the outer sides or inner sides of the two elastic supports and are detachably connected with the elastic supports. The two clamping arm mechanisms are connected through the screw rod. The nuts are movably arranged on the outer sides of the two clamping arm mechanisms through the screw rod. Finally, a tensioning clamp is formed, so that the distance between the two elastic supports can be adjusted by screwing the nuts. The application can finely adjust the elastic support of the gearbox by screwing the nuts, improves the installation efficiency of the elastic support and saves the cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind turbine transmission chain installation, in particular to a wind turbine gearbox elastic support installation tool and installation method. BACKGROUND

[0002] In the installation of the elastic support of the wind turbine gearbox, the traditional installation method is to screw the connecting stud of the elastic support into the corresponding threaded mounting hole of the front frame, then disassemble the upper and lower supports of the elastic support, hoist the lower support of the elastic support, place it on the front frame along the stud, and then measure the distance between the two elastic supports on each side of the front frame. The elastic support is pushed by manpower until the distance meets the requirements. Generally, the distance is 2mm larger than the distance between the two retaining rings of the gearbox torque arm pin shaft to facilitate the hoisting of the transmission chain. Then hoist and drop the transmission chain, and when the gearbox torque arm pin shaft approaches the lower support of the elastic support, manually push the two lower supports of the elastic support on each side of the front frame towards each other until the end face of the lower support of the elastic support is flush with the end face of the elastic body. Finally, place the transmission chain and install the upper support of the elastic support. The weight of a lower support of an elastic support is about 600kg, which is very inconvenient to push by manpower, and manual measurement of the distance is required during the process. Therefore, this traditional installation method is time-consuming and labor-intensive, reduces the assembly efficiency, and increases the time and labor cost.

[0003] In view of the above problems, there is an urgent need for a wind turbine gearbox elastic support installation tool and installation method with high installation efficiency and low cost. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and provides a wind turbine gearbox elastic support installation tool and installation method, which can finely adjust the position of the gearbox elastic support by screwing the nut, improve the installation efficiency of the gearbox elastic support, and save time and labor cost.

[0005] The present application achieves the above-mentioned purpose by the following technical scheme: a wind turbine gearbox elastic support installation tool, the elastic support has four elastic supports symmetrically installed on both sides of the front frame of the wind turbine through the installation tool; the installation tool comprises a positioning pin, a clamping arm mechanism, a screw rod and a nut, two positioning pins are provided for each elastic support, one end of the positioning pin is connected with the front frame, and the other end of the positioning pin penetrates into the elastic support for positioning the elastic support; the clamping arm mechanism has two clamping arm mechanisms respectively arranged on the outer side or inner side of the two elastic supports and forming a detachable connection with the elastic support; the two clamping arm mechanisms are connected together by the screw rod, and the nut is movably installed on the outer side of the two clamping arm mechanisms through the screw rod, finally forming a tensioning clamp, so that the distance between the two elastic supports can be adjusted by screwing the nut.

[0006] Further, a gasket is arranged between the nut and the clamping arm mechanism.

[0007] Further, a plurality of mounting holes are arranged on both sides of the front frame and the elastic support, the mounting holes of the elastic support are through holes penetrating the elastic support from bottom to top, the elastic support is positioned by a positioning pin penetrating the mounting holes of the front frame and the elastic support, and the mounting holes of the front frame are threaded mounting holes.

[0008] Further, the positioning pin is a variable-diameter cylindrical structure, the large end surface of the positioning pin is provided with threads and forms a threaded connection with the mounting hole of the front frame, the small end of the positioning pin penetrates the elastic support, and the maximum diameter of the positioning pin is smaller than the diameter of the mounting hole of the elastic support.

[0009] Further, the positioning pin is an alloy structural steel positioning pin.

[0010] Further, the clamping arm mechanism comprises a cross plate and long hooks, the two long hooks are arranged at the two ends of the cross plate respectively, the two long hooks respectively extend into the mounting holes on the two sides of the top of the elastic support to form a detachable connection with the elastic support, and the two ends of the cross plate are provided with through holes for the screw rod to pass through.

[0011] Further, the cross plate is a steel cross plate.

[0012] Further, the long hook is a round steel long hook.

[0013] Further, the diameter of the long hook is smaller than the diameter of the mounting hole of the elastic support.

[0014] An installation method based on the above-mentioned elastic support installation tool for the gear box of a wind turbine, comprising the following steps:

[0015] First, the large end of the positioning pin is screwed into the mounting hole on both sides of the front frame of the wind turbine for installing the elastic support, two positioning pins are required for positioning the lower support of each elastic support, and the positioning pins are installed in the mounting hole in the middle of the lower support of the elastic support, then the lower supports of the four elastic supports are respectively lifted and placed symmetrically on both sides of the front frame along the positioning pins, the two clamping arm mechanisms are hung on the inner sides of the lower supports of the two elastic supports, that is, the long hooks of the clamping arm mechanisms hook the mounting holes on the inner sides of the lower supports of the two elastic supports, then the screw rod is inserted into the clamping arm mechanism and the nut, the two lower supports of the elastic support are moved in opposite directions by screwing the nut until the lower supports of the two elastic supports penetrate the mounting hole of the positioning pin and cannot be screwed any more, at this time, the distance between the lower supports of the two elastic supports reaches the maximum, then the nut is loosened, the clamping arm mechanism and the screw rod are removed, and the spacing of the lower supports of the elastic support is adjusted on the other side of the front frame according to the same method.

[0016] 2) first, the transmission chain is suspended to the lower support close to the elastic support, and then the elastic body on the torsion arm pin shaft of the gear box is installed in place; for the lower supports of the two elastic supports on the side of the front machine stand, the two clamping arm mechanisms are hung on the outer side of the lower supports of the two elastic supports, that is, the long hooks of the clamping arm mechanisms hook the mounting holes on the outer side of the lower supports of the two elastic supports, and then the screw rod is inserted into the clamping arm mechanism and the nut, and the two lower supports of the elastic supports are moved towards each other by screwing the nut until the inner end surface of the lower support of the elastic support is flush with the inner end surface of the elastic body, so that the lower surface of the elastic body is in full contact with the upper surface of the lower support; then the nut is loosened, the clamping arm mechanism and the screw rod are removed, and the lower supports of the two elastic supports on the other side of the front machine stand are adjusted in position according to the same method, and then the transmission chain is continued to be lowered and placed on the front machine stand, and the positioning of the lower supports of the elastic supports is completed;

[0017] 3) remove the installation tool, hoist the upper support of the elastic support of the wind turbine, and screw in the connecting stud to complete the installation of the elastic support of the gear box of the wind turbine.

[0018] Compared with the prior art, the present application has the following advantages and beneficial effects:

[0019] 1) The positioning pin and the screwing nut are used to adjust the elastic support to the required position, and size measurement and manual pushing are not required, so that the tedious size measurement and manual pushing process is avoided, the assembly efficiency of the transmission chain is improved, and time and labor cost are saved.

[0020] 2) The installation tool has simple structure, easy-to-buy materials and low manufacturing cost, and is economical.

[0021] 3) The gear box elastic support installation method realized based on the installation tool is simple and convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Figure 1 is a structural schematic diagram of the installation tool of the present application.

[0023] Figure 2 Figure 2 is another structural schematic diagram of the installation tool of the present application.

[0024] Figure 3 Figure 3 is a structural schematic diagram of the positioning pin.

[0025] Figure 4 Figure 4 is a structural schematic diagram of the clamping arm mechanism.

[0026] Figure 5 Figure 5 is a structural schematic diagram of the transmission chain installation structure.

[0027] Figure 6 Figure 6 is a side view of the transmission chain installation structure. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to specific embodiments.

[0029] Example 1

[0030] See also Figures 1 to 4 As shown, the wind turbine gearbox elastic support installation tool provided in this embodiment includes a positioning pin 1, a clamping arm mechanism 2, a screw 3 and a nut 4;

[0031] There are four elastic supports a installed on the top of the front base b of the wind turbine through the installation tool, and two elastic supports a are installed in parallel on each side of the front base b. The locating pins 1 are symmetrically arranged on both sides of the front base b of the wind turbine, and each elastic support a is correspondingly provided with two locating pins 1, wherein a plurality of mounting holes c are opened on both sides of the front base b and both sides of the elastic support a, and the mounting hole of the elastic support a is a hole that passes through the elastic support a from bottom to top, and the elastic support is positioned by inserting the locating pin 1 into the mounting hole c of the front base b and the elastic support a. The mounting hole of the front base b is a threaded mounting hole, and the locating pin 1 is a variable diameter cylindrical structure, and the threaded big head end 101 of the locating pin 1 is threadedly connected with the mounting hole of the front base b, and the small head end 102 of the locating pin 1 penetrates into the elastic support a, and the maximum diameter of the locating pin 1 is 2 mm smaller than the diameter of the mounting hole of the elastic support a, and the locating pin 1 is made of alloy structural steel;

[0032] The clamping arm mechanism 2 has two sections respectively arranged on the outside or inside of the two elastic supports a, and forms a detachable connection with the elastic supports a. The clamping arm mechanism 2 includes a horizontal plate 201 and a long hook 202. The horizontal plate 201 is a steel horizontal plate, and the long hook 202 is a round steel long hook. The long hook 202 has two sections respectively arranged at both ends of the horizontal plate 201. The two long hooks 202 respectively extend into the mounting holes c on both sides of the top of the elastic support a, forming a detachable connection with the elastic support a. The diameter of the long hook 202 is smaller than the diameter of the elastic support mounting hole c. Through holes 2011 for the screw 3 to pass through are opened at both ends of the horizontal plate 201. The two clamping arm mechanisms 2 are connected together by the screw 3 passing through the through holes 2011 of the two. The nut 4 is movably installed on the outside of the two clamping arm mechanisms 2 through the screw 3, and finally forms a tensioning clamp, so that the tensioning clamp can adjust the distance between the two elastic supports a by screwing the nut 4. A gasket (not shown) is provided between the nut 4 and the clamping arm mechanism 2 .

[0033] It should be noted that the elastic support described in this embodiment is the lower support of the commonly used gearbox elastic support. After the lower support of the gearbox elastic support is installed, the upper support of the gearbox elastic support is installed above the lower support of the gearbox elastic support.

[0034] Embodiment 2

[0035] Referring to Figure 1 , 2 , 5-6, the installation method of the wind turbine gearbox elastic support mounting tool according to Embodiment 1 provided in the present embodiment includes the following steps:

[0036] 1) First, the large head end 101 of the positioning pin is screwed into the mounting hole c on both sides of the front frame b of the wind turbine for installing the elastic support a. Two positioning pins 1 are required for positioning each elastic support a, and the positioning pins 1 are placed in the mounting hole in the middle of the elastic support a. Then, the lower supports of the four elastic supports a are respectively hoisted and then symmetrically placed on both sides of the front frame b along the positioning pins 1. The two clamping arm mechanisms 2 are hung on the inner side of the lower supports of the two elastic supports a, that is, the long hooks 202 of the clamping arm mechanisms are hooked onto the mounting holes c on the inner side of the lower supports of the two elastic supports a on one side of the front frame. Then, the screw rod 3 is inserted into the clamping arm mechanism 2 and the nut 4, and by simultaneously turning the nut 4 beside one of the lower supports, the lower supports of the two elastic supports a are moved in opposite directions until the mounting hole c in which the positioning pin is inserted in the lower supports of the two elastic supports a is in close contact with the positioning pin 1 and the nut 4 cannot be turned any more. At this time, the spacing between the lower supports of the two elastic supports a reaches the maximum, so as to facilitate the installation of the transmission chain by falling. Then, the nut 4 is loosened, and the clamping arm mechanism 2 and the screw rod 3 are removed. The spacing between the lower supports of the two elastic supports a on the other side of the front frame is adjusted in the same way;

[0037] 2) First, the transmission chain d is suspended close to the lower supports of the elastic supports a, and then the elastic body e on the torsion arm pin shaft of the gearbox is installed in place. For the lower supports of the two elastic supports a on one side of the front frame b, the two clamping arm mechanisms 2 are hung on the outer side of the lower supports of the two elastic supports a, that is, the long hooks 202 of the clamping arm mechanisms are hooked onto the mounting holes c on the outer side of the lower supports of the two elastic supports a. Then, the screw rod 3 is inserted into the clamping arm mechanism 2 and the nut 4, and by simultaneously turning the nut 4 beside one of the lower supports, the lower parts of the two elastic supports a are moved towards each other until the inner end surfaces of the lower supports of the two elastic supports a are flush with the inner end surface of the elastic body e, so that the lower surface of the elastic body e is in complete contact with the upper surface of the lower support. Then, the nut 4 is loosened, and the clamping arm mechanism 2 and the screw rod 3 are removed. The positions of the lower supports of the two elastic supports a on the other side of the front frame b are adjusted in the same way, and then the transmission chain d is continued to be lowered and placed on the front frame b, completing the positioning of the lower supports of the elastic supports a;

[0038] 3) The mounting tool is removed, the upper supports of the wind turbine elastic supports (not shown in the figure) are hoisted, the connecting studs are screwed in, and the installation of the wind turbine gearbox elastic supports is completed.

[0039] In summary, the mounting tool mainly adjusts the elastic support position by screwing the nut, increases the distance between the two elastic supports before the falling transmission chain, makes the falling transmission chain more smooth, reduces the distance between the two elastic supports until the inner end surface of the lower support is flush with the inner end surface of the elastic body when the transmission chain is close to but not in contact with the elastic support, so that the lower surface of the elastic body is in full contact with the upper surface of the lower support, and the installation precision of the elastic support is improved.

[0040] The above-mentioned embodiments are only the preferred embodiments of the present application, and are not intended to limit the scope of the present application. Any changes made in the shape and principle of the present application should be covered within the scope of protection of the present application.

Claims

1. A wind turbine gearbox elastic support installation tool, characterized by: The four elastic supports are symmetrically installed on both sides of the front base of the wind turbine through the installation tool; the installation tool includes a positioning pin, a clamping arm mechanism, a screw and a nut, and each elastic support is correspondingly provided with two positioning pins, one end of the positioning pin is connected to the front base, and the other end of the positioning pin is inserted into the elastic support to position the elastic support; there are two clamping arm mechanisms, which are respectively arranged on the outside or inside of the two elastic supports and form a detachable connection with the elastic supports; the two clamping arm mechanisms are connected together by a screw, and the nut is movably installed on the outside of the two clamping arm mechanisms through the screw, and finally forms a tensioning clamp, so that the tensioning clamp can adjust the distance between the two elastic supports by screwing the nut; both sides of the front base and both sides of the elastic support are A plurality of mounting holes are provided, and the mounting holes of the elastic support are holes that pass through the elastic support from bottom to top, and the elastic support is positioned by inserting a positioning pin into the mounting holes of the front base and the elastic support, and the mounting hole of the front base is a threaded mounting hole; the positioning pin is a variable diameter cylindrical structure, and the surface of the large head end of the positioning pin is provided with a thread, and forms a threaded connection with the mounting hole of the front base, and the small head end of the positioning pin penetrates into the elastic support, and the maximum diameter of the positioning pin is smaller than the diameter of the mounting hole of the elastic support; the clamping arm mechanism includes a horizontal plate and a long hook, and the long hook has two respectively arranged at both ends of the horizontal plate, and the two long hooks respectively extend into the mounting holes on both sides of the top of the elastic support to form a detachable connection with the elastic support, and the two ends of the horizontal plate are provided with through holes for the screw to pass through.

2. The wind turbine gearbox elastic support installation tool according to claim 1, characterized in that: A gasket is provided between the nut and the clamping arm mechanism.

3. The wind turbine gearbox elastic support installation tool according to claim 1, characterized in that: The positioning pin is an alloy structural steel positioning pin.

4. The wind turbine gearbox elastic support installation tool according to claim 1, characterized in that: The transverse plate is a steel transverse plate.

5. The wind turbine gearbox elastic support installation tool according to claim 1, characterized in that: The long hook is a round steel long hook.

6. The wind turbine gearbox elastic support installation tool according to claim 1, characterized in that: The diameter of the long hook is smaller than the diameter of the elastic support mounting hole.

7. A method for installing the wind turbine gearbox elastic support installation tool according to any one of claims 1 to 6, characterized in that: The following steps are involved: 1) First, screw the large ends of the locating pins into the mounting holes for installing the elastic supports on both sides of the front base of the wind turbine. Each lower support of the elastic support needs to be positioned with two locating pins, and the locating pins are installed in the mounting holes in the middle of the lower support of the elastic support. Then, lift the four lower supports of the elastic support respectively and drop them down along the locating pins and place them symmetrically on both sides of the front base. Hang the two clamping arm mechanisms on the inner sides of the lower supports of the two elastic supports, that is, the long hooks of the clamping arm mechanism hook the mounting holes on the inner sides of the lower supports of the two elastic supports, and then insert the screw into the clamping arm mechanism and the nut. By tightening the nut, the lower supports of the two elastic supports are moved in opposite directions until the mounting holes where the lower supports of the two elastic supports are inserted into the locating pins are firmly attached to the locating pins and the nuts cannot be tightened anymore. At this time, the distance between the lower supports of the two elastic supports reaches the maximum. Then, loosen the nuts, remove the clamping arm mechanism and the screw, and adjust the spacing of the lower supports of the elastic supports on the other side of the front base in the same way. 2) First, suspend the transmission chain close to the lower support of the elastic support, and then install the elastic body on the gearbox torque arm pin shaft in place; for the two elastic support lower supports on one side of the front machine base, hang the two clamping arm mechanisms on the outside of the two elastic support lower supports, that is, the long hooks of the clamping arm mechanisms hook the mounting holes on the outside of the two elastic support lower supports, and then insert the screw into the clamping arm mechanism and the nut, and by tightening the nut, the two elastic support lower supports move toward each other until the inner end surface of the elastic support lower support is flush with the inner end surface of the elastomer, so that the lower surface of the elastomer is in full contact with the upper surface of the lower support; then loosen the nut, remove the clamping arm mechanism and the screw, and adjust the position of the two elastic support lower supports on the other side of the front machine base in the same way, and then continue to lower the transmission chain and place it on the front machine base to complete the positioning of the elastic support lower supports; 3) Remove the installation tooling, hoist the upper support of the wind turbine elastic support, screw in the connecting studs, and complete the installation of the wind turbine gearbox elastic support.

Images