Maintenance auxiliary device for frequency conversion cabinet of wind turbine generator

Abstract

The utility model provides a wind turbine generator frequency conversion cabinet maintenance auxiliary device, and relates to the field of wind power maintenance, the wind turbine generator frequency conversion cabinet maintenance auxiliary device comprises a base, a lifting mechanism is hinged above the base, the base comprises a cross beam, and two ends of the cross beam are provided with base frames; the middles of the two base frames are connected in an inserted mode through a supporting beam parallel to the cross beam, the lifting mechanism comprises a hinged bottom rod connected to the outer surface of the supporting beam in a sleeving mode, and a hinged top rod is hinged to the free end of the hinged bottom rod. According to the maintenance auxiliary device for the frequency conversion cabinet of the wind turbine generator, stretching and retracting are controlled through a lead rod by arranging a multi-stage telescopic part, and a hinged bottom rod and a hinged top rod which are hinged to each other can be driven to swing through lifting of a first hydraulic telescopic arm and a second hydraulic telescopic arm, so that the hoisting height of the device can be changed, a hoisting point can be set, and the hoisting efficiency is improved. And heavy objects can be conveniently hoisted.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power maintenance technical field, concretely is a kind of wind turbine generator unit frequency conversion cabinet maintenance auxiliary device. BACKGROUND

[0002] As the important component in double-fed unit, the main component of frequency converter will be damaged due to installation process, material and other reasons, and the electric element life needs to be replaced frequently,

[0003] At present, the operation method of replacing electric reactance and frequency converter is time-consuming and laborious. The existing method: one, manual handling and lifting. Since the weight of frequency converter itself is relatively large (about 50 kg), the method of personnel cooperation lifting tests personnel strength, when replacing motor, the strength of two persons is insufficient, three persons space is not enough, the height (about 120 cm) from ground is just right to make personnel lifting unable to exert force and exist cooperation failure to lead to frequency converter to hurt personnel and personnel waist injury risk. Two, use cabin crane hand chain block to hoist. Since the length of wind turbine generator internal hoist arm is not enough, cannot provide lifting point above electric reactance and frequency converter, cannot obtain good hoisting space, thus a kind of device capable of establishing temporary hoisting point by disassembling is required. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a kind of wind turbine generator unit frequency conversion cabinet maintenance auxiliary device, solve the problem of heavy lifting inconvenience proposed in background art.

[0005] TECHNICAL SCHEME

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of wind turbine generator unit frequency conversion cabinet maintenance auxiliary device, including base, the upper side of base is hinged with lifting mechanism, the base includes crossbeam, the both ends of crossbeam are provided with base frame, the middle part of two base frames is inserted by the support beam parallel to crossbeam, the lifting mechanism includes the hinged bottom bar of sleeve joint in the outer surface of support beam, the free end of hinged bottom bar is hinged with hinged top bar, the outer surface of hinged bottom bar is provided with hydraulic telescopic arm one, the free end of hydraulic telescopic arm one is in contact with hinged top bar, the upper side of crossbeam is inserted with hydraulic telescopic arm two, the top end of hydraulic telescopic arm two is in contact with hinged bottom bar, the hinged top bar is divided into multistage telescopic part and the hook below end face, multistage telescopic part is controlled telescopic by lead screw rod.

[0007] Further, the end away from base of base frame is fixedly installed with clamp, and the bottom end of clamp is threadedly connected with rotating bolt.

[0008] Further, the both ends of crossbeam are provided with the insertion port of inclination to both sides in front side, and the end face of base frame is provided with the insertion block inserted in the inside of insertion port.

[0009] Further, the side wall of the plug-in interface is provided with a pin hole perpendicular to the plug-in block, and a pin penetrating through the plug-in block is inserted into the pin hole.

[0010] Further, the two end front sides of the cross beam are provided with thread holes inclined to the two sides, and the end surface of the base frame is provided with threaded columns screw-connected with the thread holes.

[0011] Further, the top end of the articulated bottom rod is provided with an articulated sleeve, and the bottom end of the articulated top rod is fixedly installed with an articulated frame, and the articulated frame and the articulated shaft are articulated through the articulated shaft in a clamping plug-in mode.

[0012] Further, the outer surface of the articulated bottom rod is slidably connected with a sliding sleeve, and the sliding sleeve and the articulated bottom rod are connected through a positioning pin, and the hydraulic telescopic arm two is fixedly installed above the sliding sleeve.

[0013] The wind turbine generator set variable frequency cabinet maintenance auxiliary device has the advantages that:

[0014] 1. The wind turbine generator set variable frequency cabinet maintenance auxiliary device can change the lifting height of the device through the swinging of the articulated bottom rod and the articulated top rod driven by the lifting of the hydraulic telescopic arm one and the hydraulic telescopic arm two, so that the lifting point can be set, and the heavy object can be conveniently lifted.

[0015] 2. The wind turbine generator set variable frequency cabinet maintenance auxiliary device can be disassembled and separated for convenient carrying. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a lifting mechanism connection schematic view of the utility model;

[0018] Figure 3 It is a support beam connection schematic view of the utility model;

[0019] Figure 4 It is a cross beam connection schematic view of the utility model;

[0020] Figure 5 It is a base frame connection schematic view of the utility model.

[0021] Wherein, 1, base; 2, lifting mechanism; 101, crossbeam; 102, base frame; 103, support beam; 104, clamp; 105, rotating bolt; 106, plug interface; 107, plug block; 108, pin hole; 109, pin; 110, threaded hole; 111, threaded column; 201, hinged bottom bar; 22, hinged top bar; 203, hydraulic telescopic arm one; 204, hydraulic telescopic arm two; 221, multi-stage telescopic part; 222, hook; 223, lead screw; 205, hinged frame; 206, hinged shaft; 207, sliding sleeve; 208, positioning pin; 209, hinged sleeve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Referring to Figures 1-5 A kind of wind turbine generator set frequency conversion cabinet maintenance auxiliary device, including base 1, lifting mechanism 2 is hinged in the top of base 1, base 1 includes crossbeam 101, two ends of crossbeam 101 are provided with base frame 102, the middle part of two base frames 102 is inserted with support beam 103 parallel to crossbeam 101, the top of base frame 102 is provided with limiting sleeve, support beam 103 is sleeved in the inside of limiting sleeve, one end of support beam 103 is provided with the stopper limiting transverse displacement, lifting mechanism 2 includes hinged bottom bar 201 that is sleeved in the outer surface of support beam 103, the bottom end of hinged bottom bar 201 is fixedly installed with rotating sleeve, rotating sleeve is rotatably connected with sliding ring in inner ring, sliding ring is slidably connected with support beam 103, the surface of support beam 103 is provided with baffle limiting sliding of hinged bottom bar 201, hinged top bar 22 is hinged to the free end of hinged bottom bar 201, the outer surface of hinged bottom bar 201 is provided with hydraulic telescopic arm one 203, the free end of hydraulic telescopic arm one 203 is in contact with hinged top bar 22, crossbeam 101 is inserted with hydraulic telescopic arm two 204 in the top, the top end of hydraulic telescopic arm two 204 is in contact with hinged bottom bar 201, hinged top bar 22 is divided into multi-stage telescopic part 221 and hook 222 below end face, multi-stage telescopic part 221 is controlled telescopic by lead screw 223, by the lifting of hydraulic telescopic arm one 203 and hydraulic telescopic arm two 204, hinged bottom bar 201 and hinged top bar 22 that are hingedly connected can be swung, so that the device can change hoisting height.

[0024] The end of the base frame 102 away from the base 1 is fixedly provided with a clamp 104, and the bottom end of the clamp 104 is threadedly connected with a rotating bolt 105, which is used for sleeving at the bottom plate of the existing frequency conversion cabinet and plays a limiting role.

[0025] The two ends of the beam 101 are provided with plug-in interfaces 106 inclined to both sides, and the end surface of the base frame 102 is provided with plug-in blocks 107 plugged into the plug-in interfaces 106, so that the beam 101 and the base frame 102 can be connected.

[0026] The sidewall of the plug-in interface 106 is provided with a pin hole 108 perpendicular to the plug-in block 107, and the pin hole 108 is plugged with a pin 109 penetrating through the plug-in block 107, so that the beam 101 and the base frame 102 are not easily separated.

[0027] The two ends of the beam 101 are provided with threaded holes 110 inclined to both sides, and the end surface of the base frame 102 is provided with threaded columns 111 threadedly connected with the threaded holes 110, so that the connecting pieces during splicing can be reduced.

[0028] The top end of the articulated bottom rod 201 is provided with an articulated sleeve 209, and the bottom end of the articulated top rod 22 is fixedly provided with an articulated frame 205, which is articulated with the articulated shaft 206 through clamping and plugging, so that the articulated bottom rod 201 and the articulated top rod 22 can be separated, thereby facilitating separate carrying.

[0029] The outer surface of the articulated bottom rod 201 is slidingly connected with a sliding sleeve 207, and the sliding sleeve 207 and the articulated bottom rod 201 are connected through a positioning pin 208. The hydraulic telescopic arm two 204 is fixedly installed above the sliding sleeve 207. Through such a setting, the position of the hydraulic telescopic arm two 204 can be changed, which can be used for jacking the articulated top rod 22 and adjusting the gravity center of the device.

[0030] In use, the base frame 102 and the beam 101 are connected with each other, the articulated bottom rod 201 is sleeved on the surface of the support beam 103, the support beam 103 is clamped with the base frame 102, the articulated top rod 22 is articulated with the articulated bottom rod 201 through the articulated shaft 206, the inclination angle of the articulated bottom rod 201 is adjusted by controlling the hydraulic telescopic arm two 204, the hydraulic telescopic arm two 204 is plugged and fixed with the beam 101, the position of the hydraulic telescopic arm one 203 is changed by sliding the sliding sleeve 207, the articulated top rod 22 is adjusted by changing the extension length of the hydraulic telescopic arm one 203, the extension length of the multi-stage telescopic part 221 of the articulated top rod 22 is changed by rotating the lead screw 223, so that the position of the hook 222 can be changed.

[0031] It is to be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions.

[0032] The above description is merely the preferred specific embodiments of the present application, and the protection scope of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent substitutions or changes within the technical range disclosed by the present application, and all of them should be covered within the protection scope of the present application.

Claims

1. A maintenance auxiliary device for a wind turbine inverter cabinet, comprising a base (1), characterized in that: A lifting mechanism (2) is hinged to the top of the base (1); The base (1) includes a crossbeam (101), and base frames (102) are provided at both ends of the crossbeam (101). The middle of the two base frames (102) is connected by a support beam (103) parallel to the crossbeam (101). The lifting mechanism (2) includes a hinged bottom rod (201) sleeved on the outer surface of the support beam (103), a hinged top rod (22) hinged to the free end of the hinged bottom rod (201), a hydraulic telescopic arm (203) is provided on the outer surface of the hinged bottom rod (201), the free end of the hydraulic telescopic arm (203) contacts the hinged top rod (22), a hydraulic telescopic arm (204) is inserted above the crossbeam (101), and the top end of the hydraulic telescopic arm (204) contacts the hinged bottom rod (201); The hinged top rod (22) is divided into a multi-stage telescopic section (221) and a hook (222) below the end face. The multi-stage telescopic section (221) is controlled to extend and retract by a guide rod (223).

2. The auxiliary maintenance device for wind turbine inverter cabinet according to claim 1, characterized in that: A clip (104) is fixedly installed at the end of the base frame (102) away from the base (1), and a rotating bolt (105) is threaded to the bottom end of the clip (104).

3. The wind turbine inverter cabinet maintenance auxiliary device according to claim 2, characterized in that: The front sides of both ends of the crossbeam (101) are provided with insertion interfaces (106) that are inclined to both sides, and the end face of the base frame (102) is provided with insertion blocks (107) that are inserted into the insertion interfaces (106).

4. The auxiliary maintenance device for wind turbine inverter cabinet according to claim 3, characterized in that: The side wall of the insertion interface (106) is provided with a pin hole (108) perpendicular to the insertion block (107), and a pin (109) that penetrates the insertion block (107) is inserted into the inside of the pin hole (108).

5. A maintenance auxiliary device for a wind turbine inverter cabinet according to claim 2, characterized in that: The front sides of both ends of the crossbeam (101) are provided with threaded holes (110) that are inclined to both sides, and the end face of the base frame (102) is provided with threaded posts (111) that are threadedly connected to the threaded holes (110).

6. A maintenance auxiliary device for wind turbine inverter cabinet according to any one of claims 1-5, characterized in that: The top end of the hinged bottom rod (201) is provided with a hinged sleeve (209), and the bottom end of the hinged top rod (22) is fixedly installed with a hinged frame (205). The hinged frame (205) and the hinged shaft (206) are hinged by the snap-fit ​​hinged shaft (206).

7. The auxiliary maintenance device for wind turbine inverter cabinet according to claim 1, characterized in that: The outer surface of the hinged bottom rod (201) is slidably connected to a sliding sleeve (207), and the sliding sleeve (207) is connected to the hinged bottom rod (201) by a positioning pin (208). The hydraulic telescopic arm (204) is fixedly installed above the sliding sleeve (207).

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