CN213969179U

CN213969179U - Large-diameter large-tonnage turntable rail machining tool

Info

Publication number: CN213969179U
Application number: CN202022821978.8U
Authority: CN
Inventors: 庄巍; 苏成; 朱超杰; 郑奥
Original assignee: Hangzhou Huaxin Mechanical & Electrical Engineering Co ltd; Zhejiang Haizhong Heavy Industry Co ltd
Current assignee: Hangzhou Huaxin Mechanical & Electrical Engineering Co ltd; Zhejiang Haizhong Heavy Industry Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-08-17
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to a major diameter large-tonnage carousel track processing frock, including power drive device, slewer and milling equipment, its characterized in that slewer includes the stabilizer blade, the bottom fixed mounting of stabilizer blade is on the carousel, and the top is provided with the solid of revolution, the solid of revolution includes the lower flange, the cooperation is provided with the gear wheel on the lower flange, one side meshing of gear wheel is provided with the pinion, and the top is fixed and is provided with the crossbeam, milling equipment fixed mounting be in on the crossbeam, power drive device with pinion connection. The turntable rail machining tool is simple to operate and guarantees the design precision of drawings. The milling fixture is suitable for workpieces with large diameters and small milling planes, and is easy to adjust and convenient to move. The relative position location is comparatively independent between each part of frock, and the adjustment flexibility is strong. All parts can be completely detached and separated, the movement is convenient, the occupied space is small, and the equipment cost is low.

Description

Large-diameter large-tonnage turntable rail machining tool

Technical Field

The utility model relates to the technical field of machining, specifically a large-diameter large-tonnage carousel track processing frock.

Background

With the development of the national re-manufacturing industry and port foundation construction equipment, the weight and the overall dimension of parts needing to be processed are greatly increased, and the processing requirements are higher and higher. For example, the track radius of a turntable of a slewing mechanism of a Lufeng nuclear power 900t fixed slewing crane is 12.78 m. If the rotating track is required to be machined by a machining process, a common lathe and milling machine cannot machine the rotating track. On one hand, the production quantity of the products of the company is small and the products are basically manufactured in a single piece, and if large-scale special milling machine processing equipment is purchased, a large amount of funds are spent, and the cost investment is large; on the other hand, considering the transportation condition, the tonnage of the rotary table reaches 250t after the rotary table is manufactured and molded, the space size is about 22.4m multiplied by 13.3m multiplied by 5.1m, the transportation by outside aid is difficult, the lifting cost is high, and the transportation by outside aid is inconvenient. Therefore, in view of the existing processing equipment and conditions of the company, the processing tool for the workpieces is designed by adopting a proper method and economical and applicable processing equipment, and the processing problem of large-sized rotary parts is effectively solved by formulating a reasonable process.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a with low costs, the transportation is easy to convenient, nimble, economy, the effective large-diameter large-tonnage carousel track processing frock that is high.

In order to solve the technical problem existing in the above, the utility model discloses a following scheme:

the utility model provides a major diameter large-tonnage carousel track processing frock, includes power drive device, slewer and mills equipment, its characterized in that slewer includes the stabilizer blade, the bottom fixed mounting of stabilizer blade is on the carousel, and the top is provided with the solid of revolution, the solid of revolution includes the lower flange, the cooperation is provided with the gear wheel on the lower flange, one side meshing of gear wheel is provided with the pinion, and the top is fixed and is provided with the crossbeam, it installs to mill equipment fixed mounting on the crossbeam, power drive device with pinion connection.

The large-diameter large-tonnage turntable rail machining tool is characterized in that the lower flange is fixedly installed at the top of the support leg, and a central shaft for positioning is arranged at the center of the lower flange and the center of the large gear.

The large-diameter large-tonnage turntable rail machining tool is characterized in that a roller path is arranged on the lower flange, a ball is arranged in the roller path, and the ball is arranged between the lower flange and the large gear.

The large-diameter large-tonnage turntable rail machining tool is characterized in that the power driving device comprises a motor, a transmission case is arranged on a driving shaft of the motor, a driving rod is arranged on the transmission case, and a pinion is fixedly installed on the driving rod.

The large-diameter large-tonnage turntable rail machining tool is characterized in that a speed reducer is further arranged between the motor and the speed changing box, the side clearance between the motor and the speed reducer is smaller than or equal to 1mm, and the side clearance between the speed reducer and the speed changing box is smaller than or equal to 1 mm.

The large-diameter large-tonnage turntable rail machining tool is characterized in that lubricating grease is arranged at the joint of the motor and the speed reducer, lubricating grease is arranged at the joint of the speed reducer and the gearbox, and gear oil is arranged in the speed reducer.

The large-diameter large-tonnage turntable rail machining tool is characterized in that the milling equipment comprises a screw rod and a tool rest movably arranged on the screw rod, and a milling cutter disc is arranged on the tool rest.

The large-diameter large-tonnage turntable rail machining tool is characterized in that the screw rod is fixedly mounted on the cross beam through a connecting piece, and a driving plate for driving the tool rest to move along the direction of the screw rod is arranged at the end part of the screw rod.

The large-diameter large-tonnage turntable rail machining tool is characterized in that lubricating grease is arranged on the tooth surface of the large gear, 150 balls are arranged, and the diameter of each ball is 50 mm.

The large-diameter large-tonnage turntable rail machining tool is characterized in that a balancing weight is arranged at one end of a cross beam, and the milling equipment is fixedly installed at the other end of the cross beam.

This major diameter large-tonnage carousel track processing frock has following beneficial effect:

the turntable rail machining tool is simple to operate and guarantees the design precision of drawings. After the fixture is installed according to the design requirements of the fixture, the feeding amount is controlled by adjusting the horizontal direction of the shifting block, and the axial feeding amount is completed by knocking a cutter after the horizontal direction machining is completed, so that the precision requirement of the machining of the track installation plane of the turntable can be met.

The milling cutter is suitable for workpieces with large diameters and small milling planes. The tool structure shows that the tool machining range is slightly influenced by the radius size of a workpiece, and the workpiece can be machined within an effective working stroke of a beam of the turning equipment as long as the ring width of a turning plane of the workpiece is within a certain range.

Easy to adjust and convenient to move. The relative position location is comparatively independent between each part of frock, and the adjustment flexibility is strong. All parts can be completely disassembled and separated, the movement is convenient, and the occupied space is small.

The equipment cost is low. The tool needs to purchase a revolving body and milling equipment, wherein the revolving body and the milling equipment are formed by a large gear ring and a lower flange, old equipment is used, a gearbox is connected with a small gear and a speed reducer, a motor can be provided by oneself, and other components can be manufactured by self. The overall cost is far lower than the cost of external processing or purchasing special processing equipment.

Drawings

FIG. 1: the utility model discloses the structure schematic diagram of frock.

Description of reference numerals:

1, a balancing weight; 2, a cross beam; 3, a gearwheel; 4, central shaft; 5, a motor; 6, a speed reducer; 7 a gearbox; 8 pinion gears; 9 feet; 10, a screw rod; 11 a tool holder; 12 a dial; 13 a turntable base; 131 processing a plane; 14, a lower plane of the turntable; 15 lower flange; 16 balls.

Detailed Description

The following detailed description will be made in conjunction with the accompanying drawings to make the technical solution of the present invention easier to understand and master.

As shown in figure 1, the large-diameter large-tonnage turntable rail machining tool comprises a power driving device, a rotating device and milling equipment. The power driving system comprises a motor 5, a speed reducer 6 and a gearbox 7, and a driving rod of the gearbox 7 is meshed with the rotating device to provide power for the rotating device.

The rotating device comprises a support leg 9, the bottom of the support leg 9 is fixedly arranged on the turntable through a mounting seat, and a lower flange 15 is fixedly arranged at the top of the support leg 9. The bull gear 3 is arranged above the lower flange 15, a plurality of balls 16 are arranged between the bull gear and the lower flange 15, the balls 16 can be arranged in a rolling way on the surface of the lower flange 15 in a rolling way, and 150 balls with the diameter of 50mm are arranged in the embodiment. The center of the lower flange 15 and the bull gear 3 is provided with a central shaft 4, and the central shaft 4 is used for positioning and placing the bull gear 3 and the lower flange 5 in a dislocation manner.

One side of the bull gear 3 is engaged with a pinion 8, the pinion 8 is fixedly arranged on a driving shaft of the gearbox 7 and connected with a power driving device, and the bull gear 3 is driven to rotate through the pinion 8 so as to realize the operation of the slewing device.

A beam 2 is fixedly arranged above the large gear 3, one end of the beam 2 is provided with a balancing weight 1, and the other end is provided with milling equipment.

The milling equipment is fixedly arranged on the cross beam 2 and comprises a tool rest 11 and a screw rod 10, the screw rod 10 is fixedly arranged on the cross beam 2 through a connecting piece, the tool rest is movably arranged on the screw rod 10, and the tool rest 11 is controlled to horizontally move on the screw rod 10 through a drive plate 12 arranged at the end part of the screw rod 10. The cutter frame 11 is provided with a plurality of groups of milling cutters, and can process tracks with different requirements.

The tool holder 11 is provided on the turntable base 13, and the milling cutter machines the machining plane 131.

The power driving device drives the pinion 8 to rotate through the gearbox 7, and the large gear 3 meshed with the pinion 8 drives the beam 2 fixed on the large gear 3 to rotate. The milling device is fixed to a fixed base surface on the cross beam 2, and the position of the tool holder 11 is adjusted by the screw 10. Turning equipment and a rotating device are started, the beam 2 rotates to provide feeding motion for turning, the tool rest 11 of the turning equipment horizontally adjusts and moves on the beam 2 through the driving plate 12 to provide radial feeding motion of a turntable track and the tool striking on the tool rest 11 provides axial feeding motion, and then the turntable track can be machined.

When the machining tool is installed, the turntable needing to be machined is inverted, the turntable base 13 faces upwards, and the plane 131 is conveniently milled. Firstly, a rotation center of the rotation device is determined, the rotation center is fixed on a lower plane 14 of the turntable through a supporting leg 9 flange according to the installation position of the tool supporting leg 9 and the rotation bearing, the rotation bearing falls on the supporting leg 9, and the rotation bearing is adjusted. Then the lower flange 15 is installed and leveled, and the ball 16 and the gearwheel 3 are installed to form a revolving body of the revolving device. Installing power driving device, i.e. motor, speed reducer, gear box and pinion, etc., the backlash is less than or equal to 1mm, and coating lubricating grease, and adding proper amount of gear oil with a certain purity into the speed reducer 6. And after the rotary working part is installed, a power supply is switched on, no-load test run is carried out, and lubricating grease is coated on the tooth surface of the large gear 3 in the test run process. And (5) after no load is abnormal, installing milling equipment, correcting the tool bit and performing trial run.

And after the tool is installed, debugged and trial run is finished, the processing of the mounting plane of the turntable track can be carried out.

During the machining process, it is first determined that the machining plane 131 of the rail has a machining allowance. The tool bit of the adjusting tool rest 11 is in contact with the processing plane 131, the motor 5 is started, the cross beam 2 rotates, and whether the rotating direction of the tool can be in contact with the processing plane 13 or not is observed at a close distance. Trial run processing is carried out, and the level of the tool rest 11 is adjusted. Adjusting the end face level of a cutter head of the cutter frame, fastening, adjusting the relative position of the cutter frame 11 and the rotary table machining plane 131, manually knocking the feed amount of the cutter in the vertical direction until the turning tool machines a primary plane, measuring the levelness of the turning plane by using a leveller to adjust the level of the milling surface of the milling cutter head, and fixedly installing the milling cutter head on the cutter frame 11. The machining can be carried out after all levels are adjusted, the stable condition of the cutter in the machining process is observed, and the turning feeding amount and the rotating speed of the beam 2 are adjusted according to the running condition of the cutter.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The present invention has been described in detail with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements of the method concept and the technical solution of the present invention can be made without modification, or the present invention can be directly applied to other occasions without modification, and is within the protection scope of the present invention.

Claims

1. The utility model provides a major diameter large-tonnage carousel track processing frock, includes power drive device, slewer and mills equipment, its characterized in that slewer includes the stabilizer blade, the bottom fixed mounting of stabilizer blade is on the carousel, and the top is provided with the solid of revolution, the solid of revolution includes the lower flange, the cooperation is provided with the gear wheel on the lower flange, one side meshing of gear wheel is provided with the pinion, and the top is fixed and is provided with the crossbeam, it installs to mill equipment fixed mounting on the crossbeam, power drive device with pinion connection.

2. The large-diameter large-tonnage turntable rail machining tool according to claim 1, wherein the lower flange is fixedly mounted on the top of the support leg, and a central shaft for positioning is arranged at the center of the lower flange and the bull gear.

3. The large-diameter large-tonnage turntable rail machining tool according to claim 1, characterized in that a raceway is provided on the lower flange, and a ball is provided in the raceway and disposed between the lower flange and the bull gear.

4. The large-diameter large-tonnage turntable rail machining tool according to claim 1, wherein the power driving device comprises a motor, a transmission is arranged on a driving shaft of the motor, a driving rod is arranged on the transmission, and the pinion is fixedly mounted on the driving rod.

5. The large-diameter large-tonnage turntable rail machining tool according to claim 4, characterized in that a reducer is further arranged between the motor and the gearbox, a backlash between the motor and the reducer is less than or equal to 1mm, and a backlash between the reducer and the gearbox is less than or equal to 1 mm.

6. The large-diameter large-tonnage turntable rail machining tool according to claim 5, characterized in that lubricating grease is arranged at the joint of the motor and the reducer, lubricating grease is arranged at the joint of the reducer and the gearbox, and gear oil is arranged in the reducer.

7. The large-diameter large-tonnage turntable rail machining tool according to claim 1, characterized in that the milling equipment comprises a screw and a tool rest movably arranged on the screw, and a milling cutter disc is arranged on the tool rest.

8. The large-diameter large-tonnage turntable rail machining tool according to claim 7, characterized in that the lead screw is fixedly mounted on the cross beam through a connecting piece, and a drive plate for driving the tool rest to move in the direction of the lead screw is arranged at the end of the lead screw.

9. The large-diameter large-tonnage turntable rail machining tool according to claim 3, wherein the tooth surface of the bull gear is provided with lubricating grease, the number of the balls is 150, and the diameter of each ball is 50 mm.

10. The large-diameter large-tonnage turntable rail machining tool according to claim 1, characterized in that a counterweight is arranged at one end of the cross beam, and the milling equipment is fixedly mounted at the other end of the cross beam.