CN-224212247-U - Wind-powered electricity generation main shaft bearing hoist device

Abstract

The utility model discloses a wind power main shaft bearing hoisting device, which relates to the technical field of large bearing hoisting and comprises a supporting block, wherein a threaded hole is formed in the supporting block, a stud pin and a supporting stud are connected with the supporting block through the threaded hole, a long round hole and a threaded hole are formed in a pressing block, the pressing block is fixed through upper and lower large cap locking nuts after being placed at the middle part of the supporting stud, the clamping bolts are connected with the pressing block and then placed between two rollers arranged on a bearing, a rotary hoisting ring is placed at the upper end of the supporting stud, and the height of the rotary hoisting ring is adjusted through an adjusting nut. The wind power main shaft bearing lifting device provided by the utility model has the advantages that the structure is simple, the installation is convenient, the main shaft bearing heating and tool installation time is reduced, the integral lifting efficiency is improved, the lifting process is stable and controllable, and the lifting safety is improved.

Inventors

• DONG LIZHOU
• WANG JIAN
• YANG XUDONG
• CHENG WEI
• SUN YUEWEN

Assignees

• 中煤张家口煤矿机械有限责任公司

Dates

Publication Date

20260508

Application Date

20250605

Claims (4)

1. 1. The utility model provides a wind-powered electricity generation main shaft bearing hoist device, its characterized in that, including a supporting shoe, be equipped with the screw hole on the supporting shoe, the helicoidal pin passes through the screw hole with the supporting stud and is connected with the supporting shoe, and the briquetting is equipped with slotted hole and screw hole, and it is fixed through upper and lower big cap lock nut after placing the briquetting in supporting stud middle part position, and the chucking bolt is connected with the briquetting and then is placed between two rollers of arranging on the bearing, and rotatory rings are arranged in the supporting stud upper end, through adjusting nut regulation rotatory rings height.
2. 2. The wind power main shaft bearing lifting device according to claim 1, wherein the stud pin is made of high-strength stainless steel, and one end of the stud pin is not threaded, so that the stud pin is conveniently placed into a bearing lubrication hole.
3. 3. The wind power main shaft bearing lifting device according to claim 1, wherein the pressing block is provided with a slotted hole, and the pressing block can be adjusted in position up and down and front and back on the support stud and is fixed through an upper large cap locking nut and a lower large cap locking nut.
4. 4. The wind power spindle bearing lifting device according to claim 1, wherein the lifting ring is a rotary lifting ring, and the lifting ring can be adjusted up and down on the support stud through an adjusting nut.

Description

Wind-powered electricity generation main shaft bearing hoist device Technical Field The utility model relates to the technical field of wind generating set installation equipment, in particular to the technical field of large-scale bearing hoisting. Background The main shaft system of the doubly-fed wind generating set mainly adopts a double-row spherical roller bearing with a lubrication groove and three lubrication holes on an outer ring, and the traditional assembly method is that the bearing is heated by a power frequency upright column type induction heater, and then a professional circular bearing hoop is adopted for hoisting the bearing. The bearing anchor ear is installed on the bearing outer ring, and the anchor ear is fastened with the bearing through tightening the anchor ear with the bolt. The hoisting mode has the following defects that 1, the anchor ear is high in price, a plurality of anchor ears with different types are needed to be configured aiming at bearings with different sizes, and the cost is high. 2. The anchor ear bolt connecting pieces are more, and the installation effectiveness is low. 3. The hoop applies pretightening force through tightening the bolt, if the pretightening force is insufficient, the bearing can be caused to locally slip, even the risk of dropping exists, and potential safety hazards exist. 4. The annular anchor ear hoisting point does not have the height adjustment ability, if the hoist chain or the suspender does not have length adjustment instrument, the hoist and mount process hardly controls the bearing level. The caliper type or claw type lifting appliance is also adopted for lifting, and the lifting mode occupies a certain space because the caliper or claw clamps the bottom of the outer ring of the bearing, so that the bearing cannot be in place at one time due to the influence of the bottom retainer ring or the cover plate when falling into the main shaft bearing position, and meanwhile, the caliper or the claw is not easy to detach. Therefore, it is necessary to design a wind power main shaft bearing lifting device which is low in cost, easy to operate and safe, and the wind power main shaft bearing installation efficiency is improved. Disclosure of Invention Aiming at the defects in the prior art, the utility model provides the wind power main shaft bearing hoisting device which is low in cost, easy to operate and safe, and can improve the installation efficiency of the wind power main shaft bearing. The wind power main shaft bearing hoisting device is characterized by comprising a supporting block, wherein a threaded hole is formed in the supporting block, a threaded pin and a supporting stud are connected with the supporting block through the threaded hole, a pressing block is provided with a long round hole and a threaded hole, the pressing block is fixed through upper and lower large cap locking nuts after being placed at the middle position of the supporting stud, the clamping bolt is connected with the pressing block and then placed between two rollers of an upper row of bearings, a rotary hoisting ring is placed at the upper end of the supporting stud, and the height of the rotary hoisting ring is adjusted through an adjusting nut. When the device is used, the tool is preassembled, the threaded pins are inserted into the lubrication holes of the double-row spherical roller bearing, the threaded pins are rotated to be inserted into the lubrication holes to a certain depth, then the pressing blocks are arranged on the upper end face of the bearing, the upper and lower large cap locking nuts are adjusted, the pressing blocks are fastened, meanwhile, the clamping bolts of the pressing blocks are connected, the bolts are arranged between the two rollers in the bearing to clamp the edge of the outer ring of the bearing, and the heights of the hanging rings are adjusted by rotating the adjusting nuts during the hanging, so that the heights of three hanging chains are consistent, and the level gauge is matched, so that the bearing level in the hanging process is ensured. Preferably, the screw pin is made of high-strength stainless steel, one end of the screw pin is not provided with threads, and the screw pin is convenient to put into a bearing lubrication hole. Preferably, the pressing block is provided with a slotted hole, and the pressing block can be adjusted in position up and down and front and back on the support stud and is fixed through an upper large cap locking nut and a lower large cap locking nut. Preferably, the lifting ring is a rotary lifting ring, and the lifting ring can be adjusted up and down on the support stud through an adjusting nut. The hoisting device is suitable for double-row spherical roller bearings with lubrication grooves and three lubrication holes on the outer ring of the wind power main shaft, and can be used for bearings of the same type and different sizes without changing structural design, and only the sizes of rela