阅读说明：本技术 一种轴瓦研磨装置 (Bearing bush grinding device ) 是由 李二梅 于 2020-12-11 设计创作，主要内容包括：本发明涉及一种轴瓦研磨装置,利用第一固定座和第二固定座将上瓦枕和下瓦枕限定,避免研磨的过程中研磨发生偏斜,采用第一电机和第二电机双电机驱动,通过转换开关控制第一固定座带动下瓦枕、第二固定座带动上瓦枕左右相对往复移动,进一步避免单向研磨行程较长时研磨倾斜；由于研磨的过程中,第一电机和第二电机的共同作用下,下瓦枕和上瓦枕同一时刻向相反的方向运动进行研磨,相比单一的电机驱动研磨效率更高,下瓦枕通过移动,调整上瓦枕作用在下瓦枕的受力面,方便对下瓦枕球形研磨面进行充分研磨,确保研磨质量。(The invention relates to a bearing bush grinding device, which utilizes a first fixing seat and a second fixing seat to limit an upper bearing bush pillow and a lower bearing bush pillow, avoids grinding deflection in the grinding process, adopts double-motor drive of a first motor and a second motor, controls the first fixing seat to drive the lower bearing bush pillow and the second fixing seat to drive the upper bearing bush pillow to move left and right in a reciprocating manner through a change-over switch, and further avoids grinding inclination when a unidirectional grinding stroke is long; because the in-process of grinding, under the combined action of first motor and second motor, lower tile pillow and last tile pillow are same constantly to opposite direction motion grind, compare single motor drive grinding efficiency higher, lower tile pillow is through removing, and the adjustment is gone up the bearing surface that tile pillow acted on lower tile pillow, conveniently fully grinds the spherical abrasive surface of lower tile pillow, ensures to grind the quality.)

1. The utility model provides a bearing bush grinder, includes base, first fixing base, second fixing base, mount pad, its characterized in that: the left edge of the upper side of the base is provided with a first fixing plate, the upper side of the first fixing plate is sequentially provided with a lower tile pillow and an upper tile pillow, the upper side of the lower tile pillow is an inwards concave spherical grinding combination surface, the lower side of the upper tile pillow is an outwards convex spherical grinding surface, the upper tile pillow is fixed on a second fixing seat, and the second fixing seat is arranged in the mounting seat; the upper side of the base is provided with a bulge, a first supporting plate and a second supporting plate are sequentially arranged above the bulge, the first supporting plate is fixedly connected with the base through a supporting rod, the first supporting plate is connected with the second supporting plate through a telescopic rod, a first motor is fixed on the bulge, the output shaft of the first motor is a first output shaft, a second motor is fixed on the second supporting plate, the output shaft of the second motor is a second output shaft, the first output shaft and the second output shaft are horizontal to the left, the first fixing seat comprises a transmission part and a supporting part fixed on the upper side of the transmission part, a first gear is arranged on the right side of the supporting part and fixedly connected with the first output shaft, a first spherical rack is arranged on the upper side of the transmission part and meshed with the first gear, the arc center of the first spherical rack is coincided with the arc center of the upper side surface of the lower tile pillow, and a first spherical guide rail is arranged on, and the arc center of the first guide rail coincides with the arc center of the upper side of the lower tile pillow, the middle part of the upper side of the base is provided with a first guide block matched with the first guide rail, the first guide block is connected with the first guide rail in a sliding manner, a first fixing seat slides along the first guide rail, the front and the rear sides of the supporting part are symmetrically provided with limiting clamping plates, the left and the right ends of each limiting clamping plate are provided with limiting baffles for limiting the left and right movement of the lower tile pillow, the middle part of each limiting clamping plate is in threaded fit with a pre-tightening bolt, one end of each pre-tightening bolt is provided with.

2. The bearing pad grinding device as claimed in claim 1, wherein a spherical second guide rail is disposed on a side surface of the second fixing seat, an arc center of the second guide rail is spherically coincident with a lower side surface of the upper bearing pad, a second guide block matched with the second guide rail is disposed on the mounting seat, the second guide block is slidably connected with the second guide rail, so that the second fixing seat slides along the second guide rail, a second spherical rack is disposed on an upper side of the second fixing seat, the second spherical rack is spherically coincident with the arc center of the lower side surface of the upper bearing pad, a second gear is connected to the second spherical rack in a meshing transmission manner, and the second gear is fixed on a second output shaft.

3. The bearing bush grinding apparatus as claimed in claims 1-2, wherein when the first motor and the second motor are operated by power, the first output shaft and the second output shaft are rotated in opposite directions, the cable is provided with a switch having a leakage point preventing protector, and the cable is provided with a change-over switch.

4. A bearing shell grinding apparatus according to claims 1-3 wherein the spherical grinding engaging surfaces on the lower side of the upper bearing shell have the same spherical radius as the spherical grinding engaging surfaces on the upper side of the lower bearing shell.

Technical Field

The invention belongs to the technical field of bearing bush processing equipment, and particularly relates to a bearing bush and bearing bush pillow grinding device.

Background

The spherical surface contact bearing pad is widely applied to a steam turbine, however, the structure is complex, the requirement on the maintenance process is high, after the operation is carried out for many years, due to the vibration effect in the operation and the voltage ball discharge effect of a large shaft of the steam turbine on the bearing pad-shaped joint surface, a plurality of electric corrosion pits appear, the new contact condition of the spherical joint surface is worsened, the contact area is slowly reduced, the standard requirement of the contact area is not met, and finally the vibration condition of the bearing pad of the steam turbine is caused.

In order to ensure that the spherical joint surfaces of the bearing bolsters are in full contact and meet the standard requirement of the contact area, the bearing bolsters need to be ground, manual grinding is used, 3-5 days are needed, and the efficiency is low.

Disclosure of Invention

In view of the above, the present invention provides a bearing bush grinding apparatus to solve the above problems.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a bearing bush grinding device comprises a base, a first fixed seat, a second fixed seat and a mounting seat, wherein a first fixed plate is arranged at the left edge of the upper side of the base; the base upside is provided with the bellying, and the bellying top has set gradually first layer board and second layer board, and first layer board passes through four spinal branch pole fixed connection with the base, and first layer board passes through four telescopic links with the second layer board to be connected, be fixed with first motor on the bellying, the output shaft of first motor is first output shaft, be fixed with the second motor on the second layer board, the output shaft of second motor is the second output shaft, and the equal level of first output shaft and second output shaft is left.

The first fixed seat comprises a transmission part and a supporting part fixed on the upper side of the transmission part, a first gear is arranged on the right side of the supporting part and fixedly connected with a first output shaft, a first spherical rack is arranged on the upper side of the transmission part and meshed with the first gear, the arc center of the first spherical rack is superposed with the arc center of the upper side surface of the lower tile pillow, a spherical first guide rail is arranged on the transmission part, the arc center of the first guide rail is superposed with the arc center of the upper side surface of the lower tile pillow, a first guide block matched with the first guide rail is arranged in the middle of the upper side of the base and is in sliding connection with the first guide rail, so that the first fixed seat slides along the first guide rail, limiting clamping plates are symmetrically arranged on the front side and the rear side of the supporting part, limiting baffles for limiting the left and right movement of the lower tile pillow are arranged at the left and right ends of the limiting clamping plates, a, and the other end of the pre-tightening bolt is rotatably connected with the supporting part through a rolling bearing, and the lower bearing pillow is clamped on the supporting part by driving the limiting clamping plate to move through rotating the pre-tightening bolt.

The utility model discloses a bearing bush pillow, including first fixing base, second guide rail, the spherical coincidence of second guide rail complex, be provided with on the mount pad with the spherical second guide block of second guide rail, second guide block and second guide rail sliding connection make the second fixing base slide along the second guide rail, second fixing base upside is provided with the spherical rack of second, the spherical coincidence of the spherical and last bearing bush pillow downside arc center of second rack, the spherical rack meshing transmission of second is connected with the second gear, the second gear is fixed on the second output shaft.

When the first motor and the second motor are electrified to work, the rotating directions of the first output shaft and the second output shaft are opposite, the cable is provided with a switch which is used for controlling the first motor and the second motor to be synchronously opened and is provided with a leakage point preventing protector so as to ensure that equipment trips in time when electric leakage occurs, the cable is provided with a change-over switch which can realize the forward and reverse rotation of the first motor and the second motor, the speed regulation and forward and reverse rotation functions of the first motor and the second motor are realized, and the reciprocating circular motion of the tile pillow grinding process is controlled.

Preferably, the spherical grinding joint surface on the lower side of the upper tile pillow is the same as the spherical grinding joint surface on the upper side of the lower tile pillow in spherical radius, so that the grinding joint surfaces are tightly attached together and are not separated.

The invention has the beneficial effects that: according to the invention, the lower tile pillow is fixed on the first fixing seat, the upper tile pillow is fixed on the second fixing seat, the upper tile pillow and the lower tile pillow are limited by the first fixing seat and the second fixing seat, the grinding deflection in the grinding process is avoided, the double-motor driving of the first motor and the second motor is adopted, the rotating directions of the first output shaft and the second output shaft are controlled through the change-over switch, the movement of the first fixing seat and the second fixing seat is further controlled, the first fixing seat drives the lower tile pillow to reciprocate left and right, the second fixing seat drives the upper tile pillow to reciprocate left and right, and the grinding inclination when the unidirectional grinding stroke is longer is further avoided; because the in-process of grinding, under the combined action of first motor and second motor, lower tile pillow and last tile pillow are same constantly to opposite direction motion grind, compare single motor drive grinding efficiency higher, lower tile pillow is through removing, and the adjustment is gone up the bearing surface that tile pillow acted on lower tile pillow, conveniently fully grinds the spherical abrasive surface of lower tile pillow, ensures to grind the quality.

Drawings

FIG. 1 is a front view structural diagram of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention.

Reference numbers in the figures: 1, a base; 101 a convex part; 102 a first guide block; 2 a first fixed seat; 201 a transmission part; 202 a first guide rail; 203 a first ball rack; 204 a support part; 3 a first gear; 4, laying a tile pillow; 5, putting a tile pillow; 6 a second fixed seat; 601 a second guide rail; 602 a second ball rack; 7, mounting seats; 701 a second guide block; 8 a second gear; 9 a first motor; 901 a first output shaft; 10 a second motor; 1001 second output shaft; 11, a support rod; 12 a first pallet; 13, telescoping a rod; 14 a second pallet; 15 limiting clamping plates; the bolts are preloaded 16.

Detailed Description

The invention is described in further detail below with reference to the following figures and detailed description:

as shown in fig. 1-2, a bearing bush grinding device comprises a base 1, a first fixing seat 2, a second fixing seat 6 and a mounting seat 7, wherein a first fixing plate 2 is arranged at the left edge of the upper side of the base 1, the first fixing plate 2 sequentially comprises a lower bearing bush pillow 4 and an upper bearing bush pillow 5, the upper side of the lower bearing bush pillow 4 is an inwards concave spherical grinding joint surface, the lower side of the upper bearing bush pillow 5 is an outwards convex spherical grinding surface, the spherical grinding joint surface at the lower side of the upper bearing bush pillow 5 and the spherical grinding joint surface at the upper side of the lower bearing bush pillow 4 both have spherical radiuses of 1150mm, the upper bearing bush pillow 5 is fixed on the second fixing seat 6, and the second fixing seat 6 is arranged; the upper side of the base 1 is provided with a convex part 101, a first supporting plate 12 and a second supporting plate 14 are sequentially arranged above the convex part 101, the first supporting plate 12 is fixedly connected with the base 1 through four supporting rods 11, the first supporting plate 12 is connected with the second supporting plate 14 through four telescopic rods 13, the height of the second supporting plate 14 can be adjusted by the telescopic rods 13, a first motor 9 is fixed on the convex part 101, the output shaft of the first motor 9 is a first output shaft 901, a second motor 10 is fixed on the second supporting plate 14, the output shaft of the second motor is a second output shaft 1001, the first output shaft 901 and the second output shaft 1001 are both horizontally arranged to the left, the first motor 9 and the second motor 10 both use motors of 220V 1.5KW, the first motor 9 and the second motor 10 use four cores of 2.5 square wires as special cables to be connected with a power supply, and when the first motor 9 and the second motor 10 are electrified and operated, the rotating directions of the first output shaft 901 and the second output shaft 1001 are opposite, the cable is provided with a switch with a leakage point preventing protector for controlling the synchronous opening of the first motor 9 and the second motor 10 so as to ensure that the equipment trips in time when electric leakage occurs, the cable is provided with a change-over switch capable of realizing forward and reverse rotation of the first motor 9 and the second motor 10 so as to realize the speed regulation and forward and reverse rotation functions of the first motor 9 and the second motor 10 and further control the reciprocating circular motion of the tile pillow grinding process.

In this embodiment, the first fixing seat 2 includes a transmission portion 201 and a supporting portion 204 fixed on the upper side of the transmission portion 201, a first gear 3 is disposed on the right side of the supporting portion 204, the first gear 3 is fixedly connected to a first output shaft 901, a first ball-shaped rack 203 is disposed on the upper side of the transmission portion 201, the first ball-shaped rack 203 is engaged with the first gear 3, an arc center of the first ball-shaped rack 203 coincides with an arc center of an upper side of the lower tile pillow 4, a spherical first guide rail 202 is disposed on the transmission portion 201, and an arc center of the first guide rail 202 coincides with an arc center of an upper side of the lower tile pillow 4, a first guide block 102 adapted to the first guide rail 202 is disposed in the middle of the upper side of the base 1, the first guide block 102 is slidably connected to the first guide rail 202, so that the first fixing seat 2 slides along the first guide rail 202, limiting clamping plates 15 are symmetrically disposed on the front and rear sides of the supporting portion 204, limiting, the middle part of the limiting clamping plate 15 is connected with a pre-tightening bolt 16 in a threaded fit mode, one end of the pre-tightening bolt 16 is provided with a handle which is convenient to rotate, the other end of the pre-tightening bolt 16 is rotatably connected with the supporting part 204 through a rolling bearing, and the rotating pre-tightening bolt 16 drives the limiting clamping plate 15 to move to clamp the lower tile pillow 4 on the supporting part 204.

In this embodiment, a spherical second guide rail 601 is disposed on a side surface of the second fixing seat 6, an arc center of the second guide rail 601 is spherically overlapped with a lower side surface of the upper tile pillow 5, a second guide block 701 matched with the second guide rail 601 is disposed on the mounting seat 7, the second guide block 701 is slidably connected with the second guide rail 601, so that the second fixing seat 6 slides along the second guide rail 601, a second spherical rack 203 is disposed on an upper side of the second fixing seat 6, the spherical shape of the second spherical rack 203 is coincided with the arc center of the lower side surface of the upper tile pillow 5, the second spherical rack 203 is in meshing transmission connection with a second gear 8, and the second gear 8 is fixed on the second output shaft 1001.

The working principle of the invention is as follows: in the using process of the invention, the lower tile pillow 4 is clamped and fixed on the first fixing seat 2 by rotating the pre-tightening bolt 16 to drive the fiber clamping handle 15 to move, the upper tile pillow 5 is fixed on the second fixing seat 6, the upper tile pillow 5 is positioned right above the lower tile pillow 4, then the telescopic rod 13 is contracted, the mounting seat 7 and the second fixing plate 6 are driven to move downwards by the second supporting plate 14 until the grinding surface of the lower side surface of the upper tile pillow 5 is contacted with the grinding surface of the upper side of the lower tile pillow 4, then the first motor 9 and the second motor 10 are started, the first output shaft 901 drives the first gear 3 to rotate, the second output shaft 901 drives the second gear 8 to rotate, the second gear 8 and the first gear 3 rotate in opposite directions, when the first gear 3 rotates clockwise, the first fixing seat 2 is driven to move leftwards along the spherical track of the first guide block 102, and the second gear 8 rotates anticlockwise, drive second fixing base 6 and move along the ball shape orbit of second guide block 701 right side, work as first gear 3 anticlockwise rotation with the same reason, drive first fixing base 2 and move along the ball shape orbit of first guide block 102 right side, second gear 8 rotates clockwise simultaneously, drive second fixing base 6 and move along the ball shape orbit of second guide block 701 left side, the direction of rotation through change over switch control first output shaft 901 and second output shaft 1001, and then control the removal of first fixing base 2 and second fixing base 6, tile pillow 4 left and right reciprocating motion under first fixing base 2 drives, tile pillow 5 left and right reciprocating motion is gone up in second fixing base 6 drive, realize grinding.

In the grinding process, under the combined action of the first motor 9 and the second motor 10, the lower tile pillow 4 and the upper tile pillow 5 move in opposite directions at the same time for grinding, and compared with the method that one tile pillow is fixed and a single tile pillow is moved, the grinding efficiency is higher.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.