CN101569998B - Plane grinding equipment with single column and four-supporting-stand rings - Google Patents

Abstract

The invention discloses plane grinding equipment with single column and four-supporting-stand rings, which mainly comprises grinding heads, an upper connecting arm, an upper rotary body, a central shaft, vertical adjusting bolts, horizontal adjusting bolts, a central supporter, supporting arms, supporting seats, a telescopic mechanism, a lower connecting arm, a lower rotary body and the like, wherein, four supporting seats are arranged on lower rings of the stand rings and are evenly distributed; four supporting arms are arranged on the corresponding supporting seats; the vertical adjusting bolts at the ends of the supporting arms adjust the verticality of the central shaft; the horizontal adjusting bolts on the supporting seats adjust the contact ratio of the central shaft to the centers of the stand rings; the rotation of the connecting arms drives the grinding heads to rotate around the central shaft; the grinding heads are arranged at the ends of the upper connecting arms when upper planes are ground, and the grinding heads are arranged at the ends of the lower connecting arms when lower planes are ground. The upper planes and the lower planes of the stand rings are ground by changing the installation positions of the grinding heads. The rotation of the connecting arms is realized by manual drive, thereby the plane grinding equipment has the advantages of high efficiency, safety and reliability.

Description

Plane grinding equipment with single column and four-supporting-stand rings

Technical field: the structure and the processing method that the present invention relates to a kind of hydraulic generator field ring process equipment.

Background technology: generally all will process in the seat ring installation process, the processing precision direct influence of seat ring is to the assembly quality of turbine gate mechanism.At present, in the large-sized water turbine field ring is installed, processing method to seat ring has a variety of, for the mode that substantially all adopts manual grinding of being out of shape little or local deformation, bigger for pre-allowance and distortion, the artificial vapour of the employing that has digs the method for manual grinding then, also has methods such as turning and milling, by these method processing, form and position tolerance or surface roughness are difficult to guarantee.

Summary of the invention: the objective of the invention is to disclose a kind of turbine stay ring process equipment and using method, it has the characteristics of simple and safe operation, high efficiency.Technical scheme of the present invention is: a kind of plane grinding equipment with single column and four-supporting-stand rings, by grinding machine head, last linking arm, last rotary body, central shaft, horizontal adjusting bolt, the vertical bolt of adjusting, central support, support arm, bearing, telescoping mechanism, following linking arm, following rotary body is formed, grinding machine head is connected to the end of linking arm, last linking arm puts together on by bolt with last rotary body, last rotary body is connected to the top of central shaft by key, grinding machine head connects the telescoping mechanism end, telescoping mechanism puts together on down the front lower place of linking arm, following linking arm puts together on by bolt with following rotary body, following rotary body is connected to the bottom of central shaft by key, central support connects together with the middle part of central shaft by bearing, four support arms close face with four handles of central support respectively and connect together, four support arms and central support form one, four bearing seats are placed on the following ring of seat ring to be ground, be distributed in the middle of the fixed guide vane of seat ring to be ground, four support arms drop on respectively on four bearings, the equipped respectively vertical bolt of adjusting on four support arms, vertical adjust the perpendicularity that bolt is used for adjusting central shaft, the horizontal adjusting bolt on the bearing is used for adjusting the registration of central shaft and described seat ring center line to be ground.

The present invention makes full use of the confined space in the machine hole, makes the volume of equipment as far as possible little, alleviates the weight of equipment, reduces manufacturing cost.Turning arm and central shaft link together by key about adopting on the structure, and a pair of bigger single-row tapered roller bearing is installed at the middle part of central shaft, and distance between bearings is 1.5 times of bearing bore diameter, guarantee the stability of axle.When bearing is installed, add suitable pretightning force, reduce the bearing clearance, guarantee the running accuracy of equipment bearing.Telescoping mechanism adopts the rack-and-pinion transmission, and is simple and compact for structure, and telescopic shaft and copper sheathing adopt matched in clearance, are furnished with lubricating arrangement, guarantees that telescopic shaft slides freely.Process the screw thread of the different rotation directions in two ends on the tie down screw, match with lock shaft with rotation direction respectively, two lock shafts of rotation lock screw rod move in the same way or oppositely, realize the locking of telescopic shaft or unclamp.During erection unit, earlier four bearings are distributed in the fixed guide vane interval of seat ring to be ground, other parts of equipment can install outside the machine hole, and whole allocation and transportation are advanced in the machine hole, and four support arm correspondences are fallen on four bearings.Set-up time by this mounting means can be saved equipment greatly, shorten the process-cycle.Central support and four support arms keep motionless during use, and upper and lower rotary body and central shaft rotate around central support by bearing, rotate thereby drive upper and lower linking arm, and grinding machine head is rotated around central shaft, finish the processing of anchor ring.Because described seat ring to be ground will carry out welding sequence and casting cement when installing, the local location distortion is bigger, adopts the mode of manual partial grinding during work, and hand-held linking arm moves back and forth, and realizes the processing of grinding machine head to part plan, has saved process time.The invention has the beneficial effects as follows: the plane grinding equipment with single column and four-supporting-stand rings compact conformation, easy for installation, processing ease, machining accuracy height.The use of this equipment with change the manual grinding method that falls behind in the past, is compared with conventional method, and the precision of workpiece will have radical change, and operating efficiency can increase substantially, and unit installation period will shorten half wheat harvesting period, and it will be very considerable being converted to economic benefit.Simultaneously, the plane of seat ring is after polishing, and the assembly precision of water distributor has had reliable assurance.By using plane grinding equipment with single column and four-supporting-stand rings, processed circumferential plane degree reaches 0.03mm/m, and the integral planar degree reaches 0.08mm.The depth of parallelism of last plane and lower plane reaches 0.08mm/m, and surface roughness reaches Ra1.6 μ m.Improved the assembly quality of turbine gate mechanism greatly.

Employing can be expired the fine drawing requirement of satisfying according to the equipment that the present invention makes, and reaches the assembly precision of former mach quality requirement and assurance water distributor.Can carry out partly to the bigger position of distortion, easy to operate, safety, high efficiency.

Description of drawings

Fig. 1 is a structural representation of the present invention

Fig. 2 is the vertical view of Fig. 1

Fig. 3 is the structural representation of telescoping mechanism

Fig. 4 is the A-A cutaway view of Fig. 3

Fig. 5 is the B-B cutaway view of Fig. 3

The specific embodiment

Plane grinding equipment with single column and four-supporting-stand rings as shown in Figure 1, by grinding machine head 1, last linking arm 2, last rotary body 3, central shaft 4, horizontal adjusting bolt 5, the vertical bolt 6 of adjusting, central support 7, support arm 8, bearing 9, telescoping mechanism 10, following linking arm 11, following rotary body 12 is formed, first grinding machine head 1 is connected to the end of linking arm 2, last linking arm 2 puts together on by bolt with last rotary body 3, last rotary body 3 is connected to the top of central shaft 4 by key, second grinding machine head 1 connects telescoping mechanism 10 ends, telescoping mechanism 10 puts together on down the front lower place of linking arm 11, following linking arm 11 puts together on by bolt with following rotary body 12, following rotary body 12 is connected to the bottom of central shaft 4 by key, central support 7 connects together by the middle part of bearing with central shaft 4, four support arms 8 close face with four handles of central support 7 respectively and connect together, four support arms 8 form one with central support 7, as shown in Figure 2, four 9 of bearings are placed on down on the ring 13, be distributed in the middle of the fixed guide vane 14 of seat ring to be ground, four support arms 8 drop on respectively on four bearings 9, the equipped respectively vertical bolt 6 of adjusting on four support arms 8, vertical adjust the perpendicularity that bolt 6 is used for adjusting central shaft 4, the horizontal adjusting bolt 5 on the bearing 9 is used for adjusting the registration of central shaft 4 and described seat ring center line to be ground.

As shown in Figure 3, telescoping mechanism 10 is by protective cover 15, telescopic shaft 16, back copper sheathing 17, positioning key 18, preceding copper sheathing 19, tooth bar 20, guide finger 21, gear shaft 22, ball bearing 23, tie down screw 24, left-handed lock shaft 25, dextrorotation lock shaft 26 and pedestal 27 are formed, protective cover 15 puts together on the rearward end of pedestal 27, back copper sheathing 17 is installed in the back stomidium of pedestal 27, preceding copper sheathing 19 is installed in the front aperture of pedestal 27, telescopic shaft 16 slides in preceding copper sheathing 19 and back copper sheathing 17 endoporus, telescopic shaft 16 adopts matched in clearance H7/g6 with preceding copper sheathing 19 and back copper sheathing 17, two positioning keys 18 are installed in respectively telescoping mechanism 10 and following linking arm 11 are accurately located, tooth bar 20 is installed in the back lower place of telescopic shaft 16, pedestal 27 sides have guide pin hole, as shown in Figure 4, guide finger 21 is installed, gear shaft 22 axial and pedestal 27 axis normal, be installed in pedestal 27 afterbodys, link together by two ball bearings 23 and pedestal 27, the front portion of pedestal 27 has locking hole, as shown in Figure 5, respectively left-handed lock shaft 25 and dextrorotation lock shaft 26 are fixed on the both sides of telescopic shaft 16 and clamp telescopic shaft 16 by tie down screw 24.Adopt the mode of manual partial grinding during work.Earlier measure the spikes/low-points on processed plane, mark position and numerical value, earlier the height point is carried out partly, carry out successively, carry out areal survey with horizon rule, till flatness reaches requirement with dial gauge.After processing a described seat ring to be ground, except that four bearings 9, other parts can whole allocation and transportation be carried out installation, debugging and the use that next pedestal ring is processed.

Claims (1)

1. plane grinding equipment with single column and four-supporting-stand rings, it is characterized in that: by first grinding machine head (1), second grinding machine head (1), last linking arm (2), last rotary body (3), central shaft (4), horizontal adjusting bolt (5), the vertical bolt (6) of adjusting, central support (7), support arm (8), bearing (9), telescoping mechanism (10), following linking arm (11), following rotary body (12) is formed, first grinding machine head (1) is connected to the end of linking arm (2), last linking arm (2) puts together on by bolt with last rotary body (3), last rotary body (3) is connected to the top of central shaft (4) by key, second grinding machine head (1) connects telescoping mechanism (10) end, telescoping mechanism (10) puts together on down the front lower place of linking arm (11), following linking arm (11) puts together on by bolt with following rotary body (12), following rotary body (12) is connected to the bottom of central shaft (4) by key, central support (7) connects together by the middle part of bearing with central shaft (4), four support arms (8) close face with four handles of central support (7) respectively and connect together, four support arms (8) form one with central support (7), four bearings (9) seat is placed on the following ring (13) of seat ring to be ground, be distributed in the middle of the fixed guide vane (14) of seat ring to be ground, four support arms (8) drop on respectively on four bearings (9), the equipped respectively vertical bolt (6) of adjusting on four support arms (8), vertical adjust the perpendicularity that bolt (6) is used for adjusting central shaft (4), the horizontal adjusting bolt (5) on the bearing (9) is used for adjusting the registration of central shaft (4) and described seat ring center line to be ground; Telescoping mechanism (10) is by protective cover (15), telescopic shaft (16), back copper sheathing (17), positioning key (18), preceding copper sheathing (19), tooth bar (20), guide finger (21), gear shaft (22), ball bearing (23), tie down screw (24), left-handed lock shaft (25), dextrorotation lock shaft (26) and pedestal (27) are formed, protective cover (15) puts together on the rearward end of pedestal (27), back copper sheathing (17) is installed in the back stomidium of pedestal (27), preceding copper sheathing (19) is installed in the front aperture of pedestal (27), telescopic shaft (16) slides in preceding copper sheathing (19) and back copper sheathing (17) endoporus, telescopic shaft (16) adopts matched in clearance H7/g6 with preceding copper sheathing (19) and back copper sheathing (17), two positioning keys (18) are installed in respectively telescoping mechanism (10) and following linking arm (11) are accurately located, tooth bar (20) is installed in the back lower place of telescopic shaft (16), pedestal (27) side has guide pin hole, guide finger (21) is installed, axial and pedestal (27) axis normal of gear shaft (22), be installed in pedestal (27) afterbody, link together by two ball bearings (23) and pedestal (27), the front portion of pedestal (27) has locking hole, respectively left-handed lock shaft (25) and dextrorotation lock shaft (26) is fixed on the both sides of telescopic shaft (16) and clamps telescopic shaft (16) by tie down screw (24).

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