CN213379376U

CN213379376U - Adjustable shafting flange boring supporting device

Info

Publication number: CN213379376U
Application number: CN202021829981.8U
Authority: CN
Inventors: 李涛; 王波; 鲍洪亮; 孙超; 刘东傲; 白春鹏
Original assignee: Bohai Shipyard Group Co Ltd
Current assignee: Bohai Shipyard Group Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-06-08
Anticipated expiration: 2030-08-28

Abstract

The utility model provides a shafting flange bore hole strutting arrangement with adjustable. Comprises a supporting seat, a short-pitch transmission precision roller chain for locking the supporting seat on the shaft diameter and a bearing seat for supporting a boring rod; a wedge iron is arranged between the supporting seat and the bearing seat to adjust the radial position of a flange boring hole, and the stud penetrates through the wedge iron and is connected and fastened with the I-shaped hexagon nut in a two-way mode through a flat washer and a spring washer to form a support for limiting the boring rod; the bottom of the supporting seat is provided with an arc corresponding to the actual shaft diameter, and the bearing seat and the supporting seat are locked on one side of the shafting flange by a precise roller chain for short-pitch transmission; the boring rod penetrates through the bearing seat and is bored in a single cantilever mode to replace the traditional double-sided frame plate boring. The utility model discloses an adjustment drift height between supporting seat and the bearing frame, through each flange hole of the laminating of accurate roller chain for the short pitch transmission rotating process on the shaft diameter, flange hole machining precision can be guaranteed. The adjustable shaft system flange boring supporting device is suitable for being used as an adjustable shaft system flange boring supporting device.

Description

Adjustable shafting flange boring supporting device

Technical Field

The utility model relates to a flange bore hole when the shafting in boats and ships field is installed especially relates to shafting flange bore hole strutting arrangement with adjustable.

Background

The intermediate shaft flange of the ship product is connected with the output end flange of the main engine by adopting a tight-fit bolt, and the two flange connecting holes are processed by boring holes. The output torque of the flange at the output end of the host is large, so the flange hole machining precision directly influences the operation safety of a product, the double-sided frame plate boring is adopted in the conventional product flange hole machining, the construction process is complex, and the machining precision requirement is difficult to meet.

Due to the space limitation of the flywheel end of the main engine, in order to ensure the machining precision requirement of the flange hole, the boring tool needs to adopt cantilever type boring. The boring frock that uses at present has following problem that needs the improvement:

1. the existing tool is poor in structural strength, vibration is easy to occur in shaft system flange boring construction, a cutter breaking phenomenon is generated, and roundness, cylindricity and roughness are easy to be out of tolerance after flange hole machining.

2. The existing tool is connected with the middle shaft in a snap ring mode, the fastening mode is surface contact, sliding easily occurs, and therefore irreversible quality accidents are easily caused.

3. Due to the influence of a structural design body, the distance between a support bearing of the existing tool boring rod is short, so that the deviation between the boring rod and a theoretical axis is large in the rotation process, and the roundness, cylindricity and roughness of a machined flange hole are easy to be out of tolerance.

4. At present, the tool is poor in universality, a boring bar seat frame of the tool needs to be redesigned and manufactured for each type of product, and manufacturing cost waste is high.

5. At present, the processing quality of the tool is not easy to control, and the tool is only applied to the processing of a flange hole for connecting a crankshaft of a main machine and an intermediate shaft. The middle shaft and the stern shaft connecting flange hole are still constructed in a mode that the boring bar is supported by the frame plate, and the boring bar is complex to align and wastes time and labor.

Disclosure of Invention

In order to solve the flange hole machining precision problem of intermediate shaft flange and host computer output end flange, the utility model provides an adjustable shafting flange bore hole strutting arrangement. The device adjusts the wedge height through between supporting seat and the bearing frame, and the transmission of short pitch is rotatory on the shaft diameter with the laminating of accurate roller chain, and each flange hole of boring bar through bearing frame single cantilever mode bore hole processing solves the technical problem of flange hole machining precision.

The utility model provides a scheme that technical problem adopted is:

the adjustable shaft system flange boring supporting device comprises a supporting seat, a short-pitch transmission precision roller chain for locking the supporting seat on the shaft diameter and a bearing seat for supporting a boring rod; a wedge iron is arranged between the supporting seat and the bearing seat to adjust the radial position of a flange boring hole, and the stud penetrates through the wedge iron and is connected and fastened with the I-shaped hexagon nut in a two-way mode through a flat washer and a spring washer to form a support for limiting the boring rod; the bottom of the supporting seat is provided with an arc corresponding to the actual shaft diameter, and the bearing seat and the supporting seat are locked on one side of the shafting flange by a precise roller chain for short-pitch transmission; the boring rod penetrates through the bearing seat and is bored in a single cantilever mode to replace the traditional double-sided frame plate boring.

Further, the bearing seat is composed of a bottom plate, a connecting plate B and a bearing seat plate; connecting plates with equal length are arranged on two sides of the long edge of the bottom plate, and bearing seat plates are arranged on two sides of the short edge of the bottom plate for plugging to form a cuboid structure; the bearing seat plate is provided with a bearing seat for mounting the boring bar bearing, and the boring bar bearing is adjusted through a jackscrew at the side end of the bearing seat plate, so that the center of the boring bar bearing is superposed with the center of a flange boring hole; through holes are arranged on the bottom plate and are used for connecting the stud bolts with the supporting seat.

Furthermore, the supporting seat consists of a panel, an end supporting plate and a connecting plate A; the lower part of the end supporting plate is symmetrically clamped with connecting plates A, and the upper part of the end supporting plate is connected by adopting a panel seal cover; the panel is provided with through holes which are arranged corresponding to the bottom plate and used for connecting the stud bolts with the supporting seat; through holes are arranged on the connecting plate A and are used for connecting the short-pitch transmission precision roller chain; the end supporting plate is radially provided with an arc corresponding to the actual shaft diameter, the arc size is processed and manufactured according to the actual shaft diameter data, and when the supporting seat is installed on the shaft neck, the supporting seat is tightly attached to the shaft diameter.

Furthermore, one end of the precise roller chain for short-pitch transmission is connected with an eyelet bolt, and the eyelet bolt 9 passes through a through hole on the connecting plate A and is connected and fastened by an eyelet bolt flat washer, an eyelet bolt spring washer and an eyelet bolt I-shaped hexagon nut; the other end connects the two short pitch transmission precision roller chains through a chain clip.

Further, the chain clamp comprises a U-shaped plate-shaped clamping plate and a pressing plate for plugging the clamping plate, the clamping plate is provided with internal threads, the pressing plate is provided with a through hole, the clamping plate penetrates through the short-pitch transmission precise roller chain to be connected with the pressing plate on the other side, and the clamping plate is locked through an inner hexagonal socket head screw, a chain clamp flat gasket and a chain clamp spring washer; the length of the precise roller chain for short-pitch transmission is adjusted through the chain clamp, the supporting seat is fixed on the shaft diameter, and each flange hole can be directly machined on the shaft in a rotating mode.

Positive effect, because the utility model discloses an adjustment drift height between supporting seat and the bearing frame, through each flange hole of short pitch transmission with the laminating of accurate roller chain in the footpath rotation processing, be applicable to the shafting flange bore hole of different boats and ships, change the two-sided frame plate bore hole of tradition, adopt single cantilever mode bore hole. And directly rotating and processing each flange hole on the shaft under the condition of not disassembling the frame plate, and obtaining different processing requirements by simply adjusting the height of the wedge iron. The device has been widely used in various ship shafting flange hole milling work, through construction inspection, the processing method is simple and direct, the construction cost and the labor intensity are effectively reduced, the operability and the practical value are higher, the flange hole processing precision is ensured, and the product quality is improved. The adjustable shaft system flange boring supporting device is suitable for being used as an adjustable shaft system flange boring supporting device.

Drawings

FIG. 1 is a front view of an adjustable shafting flange boring supporting device;

FIG. 2 is a side view of an adjustable shafting flange boring support device;

FIG. 3 is a side view of the support base;

FIG. 4 is a top view of the support base;

FIG. 5 is a front view of the bearing housing;

FIG. 6 is a side view of the bearing seat;

fig. 7 is a chain card structure diagram.

In the figure: 1. the chain comprises a jackscrew, 2. a bearing seat, 3. a stud, 4. a flat washer, 5. a spring washer, 6. a I-shaped hexagon nut, 7. a wedge iron, 8. a support seat, 9. an eye bolt, 10. an eye bolt flat washer, 11. an eye bolt spring washer, 12. an eye bolt I-shaped hexagon nut, 13. a short pitch transmission precision roller chain, 14. a chain clip, 15. a panel, 16. an end support plate, 17. a connecting plate A, 18. a connecting plate B, 19. a bearing seat plate, 20. a bottom plate, 21. a clamping plate, 22. a pressing plate, 23. an inner hexagon socket head screw, 24. a chain clip flat washer and 25. a chain clip spring washer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in the figure, the adjustable shaft system flange boring supporting device comprises a supporting seat 8, a short-pitch transmission precision roller chain 13 for locking the supporting seat 8 on the shaft diameter and a bearing seat 2 for supporting a boring rod; a wedge 7 is arranged between the supporting seat 8 and the bearing seat 2 to adjust the radial position of the bored hole of the flange, and the stud 3 passes through the wedge 7 and is connected and fastened with an I-shaped hexagon nut 6 in two directions through a flat washer 4 and a spring washer 5 to form a support for limiting the boring rod; the bottom of the supporting seat 8 is provided with an arc corresponding to the actual shaft diameter, and the bearing seat 2 and the supporting seat 8 are locked on one side of a shafting flange through a short-pitch transmission precision roller chain 13; the boring rod penetrates through the bearing seat 2 and bores holes in a single cantilever mode, and the boring rod replaces the traditional double-sided frame plate boring hole.

The bearing seat 2 is composed of a bottom plate 20, a connecting plate B18 and a bearing seat plate 19; two sides of the long side of the bottom plate 20 are provided with connecting plates B18 with equal length, and two sides of the short side of the bottom plate 20 are provided with bearing seat plates 19 for plugging to form a cuboid structure; the bearing seat plate 19 is provided with a bearing seat for mounting the boring bar bearing, and the boring bar bearing is adjusted through the jackscrew 1 at the side end of the bearing seat plate 19, so that the center of the boring bar bearing is superposed with the center of the boring hole of the flange; through holes are arranged on the bottom plate 20 and are used for connecting the stud bolts 3 with the supporting seat 8.

The supporting seat 8 consists of a panel 15, an end supporting plate 16 and a connecting plate A17; the lower part of the end supporting plate 16 is symmetrically clamped with a connecting plate A17, and the upper part of the end supporting plate 16 is connected by a panel 15 in a sealing way; the panel 15 is provided with through holes which are arranged corresponding to the bottom plate 20 and used for connecting the stud bolts 3 with the supporting seat 8; through holes are arranged on the connecting plate A17 and are used for connecting the short-pitch transmission precision roller chain 13; the end supporting plate 16 is provided with an arc corresponding to the actual shaft diameter in the radial direction, the arc size is processed and manufactured according to the actual shaft diameter data, and when the supporting seat 8 is installed on the shaft neck, the supporting seat is tightly attached to the shaft diameter.

One end of the short-pitch transmission precision roller chain 13 is connected with an eyelet bolt 9, the eyelet bolt 9 penetrates through a through hole in a connecting plate A17, and an eyelet bolt flat washer 10, an eyelet bolt spring washer 11 and an eyelet bolt I-shaped hexagon nut 12 are adopted for connection and fastening; the other end connects two short pitch drive precision roller chains 13 through a chain clip 14.

The chain clamp 14 comprises a U-shaped plate-shaped clamping plate 21 and a pressing plate 22 for plugging the clamping plate 21, wherein the clamping plate 21 is provided with internal threads, the pressing plate 22 is provided with a through hole, the clamping plate 21 penetrates through the short-pitch transmission precision roller chain 13 to be connected with the pressing plate 22 on the other side, and the short-pitch transmission precision roller chain is locked by an inner hexagonal cylindrical head screw 23, a chain clamp flat washer 24 and a chain clamp spring washer 25; the length of the short pitch transmission precision roller chain 13 is adjusted by the chain clamp 14, the support seat 8 is fixed on the shaft diameter, and each flange hole can be directly processed on the shaft in a rotating mode.

The utility model discloses a theory of operation:

the hydraulic motor is connected with the transmission mechanism, is decelerated by the transmission mechanism and then transmitted to the boring rod to rotate, and the kinetic energy output condition of boring holes machined by the flange machine is achieved. The boring bar is supported and aligned by the developed high-precision shafting flange boring supporting device and then is machined, and the developed supporting device effectively ensures the machining quality, so that the machined flange hole can meet the installation requirements of drawings.

The utility model discloses a working process:

firstly, a support seat is selected according to the diameter of an actual shaft system, a proper adjusting wedge is selected according to the size of the actual shaft diameter from a flange hole, the support seat, the adjusting wedge and a bearing seat are connected through a stud, a ball bearing is installed on the bearing seat, and the ball bearing is fixed through a bolt.

Secondly, after adjusting the jackscrew to adjust the bearing, the arc part of the supporting seat is attached to the shaft diameter, the supporting frame is fixed on the shaft diameter by adopting a chain, the length of the chain is adjusted by the chain clamp, and the supporting seat is fixed on the shaft diameter.

And finally, penetrating a boring bar into the bearing, installing a rotary power device, a lead screw and a feed device, inserting the other end of the boring bar into the flange hole, checking the unevenness and the verticality of the flange hole, connecting the power device after proper adjustment, and machining the flange hole by using a cutter.

The utility model has the advantages that:

because the radial distance between the supporting seat and the supporting seat is changed by adjusting the height of the wedge iron, the processing requirements of different ship-shaped flange holes can be met.

Because the bearing block comprises a connecting plate B, a bearing seat plate and a bottom plate, and bearing brackets are erected at two ends of the bearing block, the width of the bearing block is lengthened, the distance between the bearings is increased, and the deviation between the cantilever end and the axis is small when the boring rod rotates.

Because the boring bar bearing of the bearing seat is adjusted by the jackscrew, the center of the boring bar bearing is coincided with the theoretical center, and the center of the processed hole is ensured to be parallel to the theoretical center.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. Shafting flange bore hole strutting arrangement with adjustable, characterized by: comprises a supporting seat (8), a short-pitch transmission precision roller chain (13) for locking the supporting seat (8) on the shaft diameter and a bearing seat (2) for supporting a boring rod; a wedge iron (7) is arranged between the supporting seat (8) and the bearing seat (2) to adjust the radial position of a flange boring hole, and the stud (3) penetrates through the wedge iron (7) and is connected and fastened with the I-shaped hexagon nut (6) in two directions through a flat washer (4) and a spring washer (5) to form a support for limiting the boring rod; the bottom of the supporting seat (8) is provided with an arc corresponding to the actual shaft diameter, and the bearing seat (2) and the supporting seat (8) are locked at one side of the shafting flange by a short-pitch transmission precision roller chain (13); the boring rod penetrates through the bearing seat (2) and bores holes in a single cantilever mode, and the boring rod replaces the traditional double-sided frame plate boring hole.

2. The adjustable shafting flange boring supporting device as claimed in claim 1, wherein:

the bearing seat (2) is composed of a bottom plate (20), a connecting plate B (18) and a bearing seat plate (19); two sides of the long side of the bottom plate (20) are provided with connecting plates B (18) with equal length, and two sides of the short side of the bottom plate (20) are provided with bearing seat plates (19) for plugging to form a cuboid structure; the bearing seat plate (19) is provided with a bearing seat for mounting the boring bar bearing, and the boring bar bearing is adjusted through a jackscrew (1) at the side end of the bearing seat plate (19), so that the center of the boring bar bearing is superposed with the center of a flange boring hole; through holes are arranged on the bottom plate (20) and are used for connecting the stud (3) with the supporting seat (8).

3. The adjustable shafting flange boring supporting device as claimed in claim 1, wherein:

the supporting seat (8) consists of a panel (15), an end supporting plate (16) and a connecting plate A (17); the lower part of the end supporting plate (16) is symmetrically clamped with connecting plates A (17), and the upper part of the end supporting plate (16) is connected by adopting a panel (15) in a sealing way; the panel (15) is provided with through holes which are arranged corresponding to the bottom plate (20) and used for connecting the stud (3) with the supporting seat (8); through holes are arranged on the connecting plate A (17) and are used for connecting the short-pitch transmission precision roller chain (13); the end supporting plate (16) is radially provided with an arc corresponding to the actual shaft diameter, the arc size is processed and manufactured according to the actual shaft diameter data, and when the supporting seat (8) is installed on the shaft neck, the supporting seat is tightly attached to the shaft diameter.

4. The adjustable shafting flange boring supporting device as claimed in claim 1, wherein:

one end of the short-pitch transmission precision roller chain (13) is connected with an eyelet bolt (9), the eyelet bolt (9) penetrates through a through hole in a connecting plate A (17), and an eyelet bolt flat washer (10), an eyelet bolt spring washer (11) and an eyelet bolt I-shaped hexagon nut (12) are adopted for connection and fastening; the other end connects two short pitch drive precision roller chains (13) through a chain clip (14).

5. The adjustable shafting flange boring supporting device as claimed in claim 4, wherein:

the chain clamp (14) comprises a U-shaped plate-shaped clamping plate (21) and a pressing plate (22) for plugging the clamping plate (21), wherein the clamping plate (21) is provided with an internal thread, the pressing plate (22) is provided with a through hole, the clamping plate (21) penetrates through the short-pitch transmission precise roller chain (13) to be connected with the pressing plate (22) on the other side, and is locked through an inner hexagonal cylindrical head screw (23), a chain clamp flat washer (24) and a chain clamp spring washer (25); the length of the short-pitch transmission precision roller chain (13) is adjusted through a chain clamp (14), the supporting seat (8) is fixed on the shaft diameter, and each flange hole can be directly machined on the shaft in a rotating mode.