阅读说明：本技术 一种设备底脚铰制螺栓孔平面刮排及平面刮平方法 (Equipment bottom foot hinged bolt hole plane scraping row and plane scraping method ) 是由 王凯 王春琳 邓庆彪 田歌 于 2019-11-15 设计创作，主要内容包括：本发明公开了一种设备底脚铰制螺栓孔平面刮排及平面刮平方法,包括刮排杆、衬套、上平面刮刀、上端螺母、上端平键、下平面刮刀、下端螺母、下端平键、下端螺母及推力球轴承,所述刮排杆上设置有上端键槽与下端键槽,所述上平面刮刀上开设有上刮刀键槽,所述下平面刮刀上开设有下刮刀键槽,述衬套与所述推力球轴承均套设于所述安装段的外部。本发明使用简单,无需专门培训,只需遵循基本操作流程即可完成,无需进行特殊的维护与保管。本发明实现了对铰制螺栓孔上、下表面的刮平精加工,提高铰制螺栓的安装精度,提高了船上设备的安装精度,减少了安装调整所用时间,提高了造船生产效率,同时也降低了工人的劳动强度。(The invention discloses a device footing hinged bolt hole plane scraping and leveling method, which comprises a scraping and leveling rod, a bushing, an upper plane scraper, an upper end nut, an upper end flat key, a lower plane scraper, a lower end nut, a lower end flat key, a lower end nut and a thrust ball bearing, wherein the scraping and leveling rod is provided with an upper end key groove and a lower end key groove, the upper plane scraper is provided with an upper scraper key groove, the lower plane scraper is provided with a lower scraper key groove, and the bushing and the thrust ball bearing are both sleeved outside an installation section. The invention is simple to use, does not need special training, can be completed only by following the basic operation flow, and does not need special maintenance and custody. The invention realizes the strickle finish machining of the upper surface and the lower surface of the hinged bolt hole, improves the installation precision of the hinged bolt, improves the installation precision of equipment on a ship, reduces the time for installation and adjustment, improves the shipbuilding production efficiency and simultaneously reduces the labor intensity of workers.)

1. A planar scraping bar of a bolt hole hinged on a bottom foot of equipment is characterized by comprising a scraping bar (1), a lining (2), an upper planar scraper (9), an upper end nut (4), an upper end flat key (8), a lower planar scraper (3), a lower end nut (7), a lower end flat key (5), a lower end nut (7) and a thrust ball bearing (5),

the scraper bar (1) comprises a conical section (101), an upper end thread section (103), an installation section (108) and a lower end thread section (106) which are sequentially arranged from top to bottom, an upper end nut (4) is matched with the upper end thread section (103), a lower end nut (7) is matched with the lower end thread section (106), the installation section (108) is close to the upper end thread section (103) and is provided with an upper end key groove (104) matched with the upper end flat key (8), the installation section (108) is close to the lower end thread section (106) and is provided with a lower end key groove (105) matched with the lower end flat key (5), an upper scraper key groove (302) matched with the upper end flat key (8) is arranged in an inner hole of the upper plane scraper (9), the hole aperture of the upper plane scraper (9) is slightly larger than the outer diameter of the installation section (108), seted up on the hole of lower flat scraper (3) with lower extreme parallel key (5) assorted scraper keyway (301), the hole aperture of lower flat scraper (3) slightly is greater than the external diameter of erection segment (108), bush (2) with thrust ball bearing (5) are all located the outside of erection segment (108), the external diameter of bush (2) is less than the aperture of hinge bolt hole (13), the length of bush (2) is less than the length of hinge bolt hole (13).

2. The planar scraping strip for the hinged bolt holes on the bottom of the equipment as claimed in claim 1, further comprising a side key groove (107), a side flat key (10) and a gasket set, wherein the side key groove (107) is arranged on the mounting section (108), the side key groove (107) is arranged above the lower end key groove (105) and is arranged in a staggered manner with the lower end key groove (105), the side flat key (10) is matched with the side key groove (107) and the lower scraper key groove (301), the gasket set is sleeved outside the mounting section (108), and one end face of the gasket set is attached to the lower end nut (7).

3. The plane scraping strip for the bolt holes in the hinged bottom of the equipment as claimed in claim 2, wherein the gasket group comprises a thick gasket (12) and a thin gasket (11), a first gasket key groove (303) matched with the lower end flat key (5) is formed in an inner hole of the thick gasket (12), and a second gasket key groove matched with the lower end flat key (5) is formed in an inner hole of the thin gasket (11).

4. The equipment foot reaming bolt hole plane scraping device as claimed in claim 1, characterized in that the bushing (2) comprises a bushing upper section (201), a bushing middle section (202) and a bushing lower section (203), the bushing upper section (201) and the bushing lower section (203) have the same structure, the outer diameter of the bushing upper section (201) is larger than that of the bushing middle section (202), and the inner hole diameter of the bushing upper section (201) is smaller than that of the bushing middle section (202).

5. The apparatus footing reamed bolt hole plane scrape row of claim 1, characterized in that said tapered section (101) is a morse No. 4 taper.

6. The scraping device for the plane of the bolt holes in the hinged bottom of the equipment as claimed in claim 5, wherein a hexagonal butt section (102) is arranged between the conical section (101) and the threaded upper end section (103), and the diagonal distance of the hexagonal butt section (102) is equal to the outer diameter of the threaded upper end section (103).

7. A device bottom foot hinged bolt hole plane scraping method is adopted by the device bottom foot hinged bolt hole plane scraping row of any one of claims 1-6, and is characterized by comprising the following steps:

step 1, scraping a plane of a hinged bolt hole of a bottom foot of an assembly device, and scraping the lower surface of a hinged bolt hole (13);

will bush (2) cover locate scrape the outside of arranging pole (1), the toper section (101) of scraping arranging pole (1) passes hinge bolt hole (13), adjust scrape the position of arranging pole (1), make bush (2) be located in hinge bolt hole (13), will lower extreme flat key (5) install in lower extreme keyway (105), lower scraper keyway (301) of lower plane scraper (3) with lower extreme flat key (5) block realizes lower plane scraper (3) with scrape the radial fixity of arranging pole (1), the sword mouth face of lower plane scraper (3) with the lower surface laminating of hinge bolt hole (13), will thrust ball bearing (5) cover is located scrape the outside of arranging pole (1), a terminal surface of thrust ball bearing (5) with the upper surface laminating of hinge bolt hole (13), sleeving the lower end nut (7) outside the lower end threaded section (106), screwing the lower end nut (7) to complete axial fixing of the lower plane scraper (3), sleeving the upper end nut (4) outside the upper end threaded section (103), screwing the upper end nut (4) to complete fixing of the thrust ball bearing (5), and driving the scraping rod (1) to rotate by adopting a power mechanism to drive the lower plane scraper (3) to rotate to scrape the lower surface of the hinged bolt hole (13);

step 2, scraping the plane of the hinged bolt hole of the bottom foot of the assembly equipment, and scraping the lower surface of the hinged bolt hole (13);

will bushing (2) cover locate scrape the outside of arranging pole (1), the toper section (101) of scraping arranging pole (1) passes hinge bolt hole (13), adjust scrape the position of arranging pole (1), make bushing (2) be located in hinge bolt hole (13), will upper end flat key (8) install in upper end keyway (104), go up scraper keyway (302) of plane scraper (9) and upper end flat key (8) block realize go up plane scraper (9) with scrape the radial fixation of arranging pole (1), the edge of a knife face of going up plane scraper (9) with the upper surface laminating of hinge bolt hole (13), will thrust ball bearing (5) cover locate scrape the outside of arranging pole (1), a terminal surface of thrust ball bearing (5) with the lower surface laminating of hinge bolt hole (13), will upper end nut (4) cover is located the outside of upper end screw thread section (103), screws up upper end nut (4), accomplishes go up the axial fixity of plane scraper (9), will lower extreme nut (7) cover is located the outside of lower extreme screw thread section (106), screws up lower extreme nut (7) are accomplished the fixed of thrust ball bearing (5) adopts power unit to drive scrapes gang rod (1) and rotates, drives and goes up plane scraper (9) and rotate the realization and strickle the last plane of hinge system bolt hole (13).

8. The device foot reaming bolt hole plane scraping method according to claim 7, characterized in that a side key groove (107) is formed in the scraping bar (1), the side key groove (107) is formed above the lower end key groove (105) and is arranged in a staggered manner with the lower end key groove (105), in the step 1, a gasket set is arranged between the lower plane scraper (3) and the lower end nut (7), a side flat key (10) is installed in the side key groove (107), the lower scraper key groove (301) of the lower plane scraper (3) is clamped with the side flat key (10) to radially fix the lower plane scraper (3) and the scraping bar (1), and in the step 2, a gasket set is arranged between the lower end nut (7) and the thrust ball bearing (5).

9. The plane scraper bar of the equipment foot hinge bolt hole according to claim 7 or 8, characterized in that the power mechanism comprises an air compressor and a pneumatic drill, the conical section (101) is inserted into the interface of the pneumatic drill, the air compressor drives the pneumatic drill to rotate, and further drives the scraper bar (1) to rotate.

10. An equipment foot reaming bolt hole plane scraping line according to claim 7 or 8, characterized in that step 2 is followed by the step of mounting the reaming bolt pair with the reaming bolt hole (13).

Technical Field

The invention belongs to the technical field of ship manufacturing, and particularly relates to a plane scraping row and a plane scraping method for a device bottom foot hinge bolt hole.

Background

At present, the installation of various important equipment is a very important task in the construction of ships. Wherein the equipment and the hull structure are fixed and the core operation is performed in the process of equipment installation. When many important devices are installed, the bottom plate (i.e. the base) of the device is connected with a device base welded on a ship body through bolts, and some parts of the connecting bolts are hinged bolts for accurately positioning the device. The reamed bolt hole is used for installing a reamed bolt, and the upper surface and the lower surface of the reamed bolt hole are respectively contacted with the hexagonal head on the reamed bolt and the surface of the fastening nut, so that in order to improve the connection firmness, the upper surface and the lower surface of the reamed bolt hole need to be ground. The existing grinding treatment process mostly adopts a manual grinding wheel to carry out grinding treatment, and has low grinding precision and large labor operation load.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a plane scraping row of a hinged bolt hole on a bottom foot of equipment, which can scrape and finish the upper surface and the lower surface of the hinged bolt hole, improve the mounting precision of the hinged bolt and improve the mounting precision of the equipment. In addition, the invention also provides a device footing hinge bolt hole plane scraping method.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a planar scraping bar of a hinged bolt hole of a bottom foot of equipment, which comprises a scraping bar rod, a lining, an upper planar scraper, an upper end nut, an upper end flat key, a lower planar scraper, a lower end nut, a lower end flat key, a lower end nut and a thrust ball bearing,

the scraping bar comprises a conical section, an upper end thread section, an installation section and a lower end thread section which are sequentially arranged from top to bottom, the upper end nut is matched with the upper end thread section, the lower end nut is matched with the lower end thread section, the installation section is close to the upper end thread section and is provided with an upper end key groove matched with the upper end flat key, the installation section is close to the lower end thread section and is provided with a lower end key groove matched with the lower end flat key, an upper scraper key groove matched with the upper end flat key is formed in an inner hole of the upper plane scraper, the inner hole aperture of the upper plane scraper is slightly larger than the outer diameter of the installation section, a lower scraper key groove matched with the lower end flat key is formed in an inner hole of the lower plane scraper, the inner hole aperture of the lower plane scraper is slightly larger than the outer diameter of the installation section, and the bush and the, the outer diameter of the bushing is smaller than the aperture of the hinge bolt hole, and the length of the bushing is smaller than the length of the hinge bolt hole.

According to the preferable technical scheme, the mounting section is provided with a side key groove, a side flat key and a gasket group, the side key groove is formed in the mounting section, the side key groove is located above the lower end key groove and is arranged in a staggered mode with the lower end key groove, the side flat key is matched with the side key groove and the lower scraper key groove, the gasket group is sleeved on the outside of the mounting section, and one end face of the gasket group is attached to the lower end nut.

The preferable technical scheme is characterized in that the gasket group comprises a thick gasket and a thin gasket, a first gasket key groove matched with the lower end flat key is formed in an inner hole of the thick gasket, and a second gasket key groove matched with the lower end flat key is formed in an inner hole of the thin gasket.

As a preferable technical solution, the bushing includes a bushing upper section, a bushing middle section, and a bushing lower section, the bushing upper section has the same structure as the bushing lower section, the outer diameter of the bushing upper section is larger than the outer diameter of the bushing middle section, and the inner hole diameter of the bushing upper section is smaller than the inner hole diameter of the bushing middle section.

As a preferred technical scheme, the conical section is a Morse No. 4 cone.

As a preferable technical scheme, a hexagonal opposite side section is arranged between the conical section and the upper end thread section, and the diagonal distance of the hexagonal opposite side section is equal to the outer diameter of the upper end thread section.

The invention provides a device footing hinged bolt hole plane scraping method, which adopts the device footing hinged bolt hole plane scraping row and comprises the following steps:

step 1, scraping a plane of a hinged bolt hole of a bottom foot of an assembly device, and scraping the lower surface of the hinged bolt hole;

sleeving the bushing sleeve outside the scraping bar, allowing the conical section of the scraping bar to penetrate through the hinged bolt hole, adjusting the position of the scraping bar to enable the bushing sleeve to be located in the hinged bolt hole, installing the lower end flat key in the lower end key groove, clamping the lower scraper key groove of the lower plane scraper with the lower end flat key to realize radial fixation of the lower plane scraper with the scraping bar, fitting the cutter edge surface of the lower plane scraper with the lower surface of the hinged bolt hole, sleeving the thrust ball bearing on the outer part of the scraping bar, fitting one end surface of the thrust ball bearing with the upper surface of the hinged bolt hole, sleeving the lower end nut on the outer part of the lower end thread section, screwing the lower end nut to complete axial fixation of the lower plane scraper, and sleeving the upper end nut on the outer part of the upper end thread section, screwing the upper end nut to fix the thrust ball bearing, and driving the scraping and arranging rod to rotate by adopting a power mechanism to drive the lower plane scraper to rotate so as to scrape the lower surface of the hinged bolt hole;

step 2, scraping the plane of the hinged bolt hole of the bottom foot of the assembly equipment, and scraping the lower surface of the hinged bolt hole;

sleeving the bushing sleeve outside the scraping bar, enabling the conical section of the scraping bar to penetrate through the hinged bolt hole, adjusting the position of the scraping bar to enable the bushing sleeve to be located in the hinged bolt hole, installing the upper end flat key in the upper end key groove, clamping the upper scraper key groove of the upper plane scraper with the upper end flat key to achieve radial fixing of the upper plane scraper and the scraping bar, enabling the knife edge surface of the upper plane scraper to be attached to the upper surface of the hinged bolt hole, sleeving the thrust ball bearing outside the scraping bar, attaching one end surface of the thrust ball bearing to the lower surface of the hinged bolt hole, sleeving the upper end nut outside the upper end thread section, screwing the upper end nut tightly to complete axial fixing of the upper plane scraper, and sleeving the lower end nut outside the lower end thread section, and screwing the lower end nut to complete the fixation of the thrust ball bearing, and driving the scraping rod to rotate by adopting a power mechanism to drive the upper plane scraper to rotate so as to realize the scraping of the upper plane of the hinged bolt hole.

As the preferred technical scheme, scrape and be provided with the side keyway on the tier pole, the side keyway set up in the top of lower extreme keyway and with lower extreme keyway dislocation set up, in step 1, lower flat scraper with be provided with the gasket group between the lower extreme nut, with the flat key of side install in the side keyway, the lower scraper keyway of lower flat scraper with the flat key block of side is realized lower flat scraper with scrape the radial fixation of tier pole, in step 2, the lower extreme nut with be equipped with the gasket group between the thrust ball bearing.

According to the preferable technical scheme, the power mechanism comprises an air compressor and an air drill, the conical section is inserted into a connector of the air drill, and the air compressor drives the air drill to rotate so as to further drive the scraping and arranging rod to rotate.

Preferably, the step 2 is followed by a step of mounting the pair of hinge bolts and the hinge bolt holes.

Compared with the prior art, the invention has the beneficial effects that:

(1) the plane scraping row of the equipment bottom foot hinge bolt hole is simple to use, does not need special training, can be completed only by following a basic operation flow, and does not need special maintenance and custody.

(2) The plane scraping row of the bolt holes hinged on the bottom of the equipment can be repeatedly used, and the use cost is greatly reduced.

(3) The plane scraping row of the equipment bottom foot hinged bolt hole can be driven by a compressed air power source and can also be rotated by manpower, and the scraping device can be suitable for different use environments.

(4) The plane scraping row of the hinged bolt holes on the bottom of the equipment can be suitable for scraping the upper surface and the lower surface of the hinged bolt holes with different apertures, namely different lengths, only by adding the gasket group and changing the types of the bushings, so that the comprehensive manufacturing cost is greatly reduced, and the scraping row is convenient to store.

(5) According to the plane scraping method for the hinged bolt hole of the equipment bottom foot, the plane scraping rows are fixed on two sides of the hinged bolt hole, and the upper surface and the lower surface of the hinged bolt hole are scraped step by step, so that the stability of construction is ensured, the scraping and fine machining of the upper surface and the lower surface of the hinged bolt hole are realized, the mounting precision of the hinged bolt is improved, the mounting precision of equipment on a ship is improved, the time for mounting and adjusting is shortened, the ship manufacturing production efficiency is improved, and the labor intensity of workers is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a scraping bar in a plane scraping row of the invention.

Fig. 2 is a schematic view of the construction of the bushing in the flat blade row of the present invention.

Fig. 3 is a schematic view of the structure of the lower plane blade in the plane blade row of the present invention.

Fig. 4 is a schematic view of the structure of the upper plane blade in the plane blade row of the present invention.

FIG. 5 is a schematic view of the structure of a thick shim in a planar shaving row according to the present invention.

Fig. 6 is a schematic view of the process of leveling the lower surface of the bolt hole in embodiment 1 of the present invention.

Fig. 7 is a schematic view of the process of leveling the upper surface of the bolt hole in embodiment 1 of the present invention.

Fig. 8 is a schematic view of the processing of leveling the lower surface of the bolt hole in embodiment 2 of the present invention.

Fig. 9 is a schematic view of the process of leveling the upper surface of the bolt hole in embodiment 2 of the present invention.

FIG. 10 is a schematic view of the assembly of the pair of hinge bolts with the hinge bolt holes of the present invention.

Wherein the reference numerals are specified as follows: the scraper bar comprises a scraper bar 1, a bushing 2, a lower plane scraper 3, an upper end nut 4, a thrust ball bearing 5, a lower end flat key 6, a lower end nut 7, an upper end flat key 8, an upper plane scraper 9, a side flat key 10, a thin gasket 11, a thick gasket 12, a hinge bolt hole 13, a hinge bolt 14, a fastening nut 15, a welding gasket 16, an equipment base bottom plate 17, an equipment base panel 18, an adjusting gasket 19, a conical section 101, a hexagonal butt section 102, an upper end threaded section 103, an upper end key groove 104, a lower end key groove 105, a lower end threaded section 106, a side key groove 107, an installation section 108, a bushing upper section 201, a bushing middle section 202, a bushing lower section 203, a lower scraper key groove 301, an upper scraper key groove 302 and a first gasket key groove.

Detailed Description

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

The utility model provides a row is scraped to equipment footing ream bolt hole plane, includes scrapes row pole 1, bush 2, goes up plane scraper 9, upper end nut 4, upper end parallel key 8, lower plane scraper 3, lower extreme nut 7, lower extreme parallel key 6, lower extreme nut 7, side parallel key 10, thrust ball bearing 5 and gasket group.

As shown in fig. 1, the scraping rod 1 includes a tapered section 101, a hexagonal opposite section 102, an upper threaded section 103, a mounting section 108, and a lower threaded section 106, which are sequentially arranged from top to bottom. The conical section 101 is a Morse 4-type cone and is used for being connected with a connecting port of an air drill, fine threads are arranged on the outer portions of the ends of the upper end threaded section 103 and the lower end threaded section 106, the upper end nut 4 is matched with the outer portion of the upper end threaded section 103, the lower end nut 7 is matched with the outer portion of the lower end threaded section 106, and the diagonal distance of the hexagonal opposite side section 102 is equal to the outer diameter of the upper end threaded section 103. The outer diameter of the upper threaded section 103 is greater than the outer diameter of the mounting section 108, and the outer diameter of the mounting section 108 is greater than the outer diameter of the lower threaded section 106. The installation section 108 is close to upper end screw thread section 103 and is equipped with upper end keyway 104, and the installation section 108 is close to lower extreme screw thread section 106 and is equipped with lower extreme keyway 105, and the top that lies in lower extreme keyway 105 on the installation section 108 is provided with side keyway 107, and side keyway 107 and lower extreme keyway 105 dislocation set, upper end flat key 8 and upper end keyway 104 match, and lower extreme flat key 6 matches with lower extreme keyway 105, and side flat key 10 and side keyway 107 phase-match. The Morse 4 cone, the hexagonal opposite side section 102, the upper end threaded section 103, the upper end key groove 104, the lower end threaded section 106 and the lower end key groove 105 are all standard sizes in mechanical design manual, the scraping bar 1 is made of alloy steel, and the outer diameter and the length of the scraping bar are designed according to the size of the hinged bolt hole 13.

As shown in fig. 2, the bushing 2 includes a bushing upper section 201, a bushing middle section 202, and a bushing lower section 203, the bushing upper section 201 and the bushing lower section 203 have the same structure, the outer diameter of the bushing upper section 201 is greater than the outer diameter of the bushing middle section 202, the inner hole diameter of the bushing upper section 201 is smaller than the inner hole diameter of the bushing middle section 202, the bushing 2 is made of brass, the length of the bushing 2 is designed according to the length of the hinge bolt hole 13, and the length of the bushing 2 is slightly smaller than the length of the hinge bolt hole 13. Bushing upper segment 201, the length of bushing hypomere 203 is less than the length of bushing middle section 202, when adding man-hour to the hinge bolt hole 13, bushing 2 sets up in the clearance of hinge bolt hole 13 and erection segment 108, adopt above-mentioned structure, when the installation, the surface of bushing middle section 202 can not with the internal surface contact of hinge bolt hole 13, the internal surface of bushing middle section 202 can not with the external surface contact of erection segment 108, bush 2 and hinge bolt hole 13 have been reduced, the area of contact of erection segment 108, frictional resistance has been reduced, the rotational resistance of scraping row's pole 1 has been reduced, make and scrape flat work and can go on under more steady environment.

As shown in fig. 3 and 4, the upper flat blade 9 and the lower flat blade 3 have the same configuration but have opposite cutting directions, and the shapes of the upper flat blade 9 and the lower flat blade 3 will be described by taking the lower flat blade 3 as an example. The lower plane scraper 3 is of a hollow annular structure, and the diameter of the excircle of the lower plane scraper 3 is slightly larger than the outer diameter of the hexagon head of the hinge bolt 14 and the outer diameter of the fastening nut 15, so that the hexagon head and the fastening bolt can be firmly installed with the hinge bolt hole 13 after the upper surface and the lower surface of the hinge bolt hole 13 are scraped. Wherein, the hole diameter of lower plane scraper 3 designs according to the external diameter of arranging and scraping gang bar 1, and hole diameter slightly is greater than the external diameter of scraping gang bar 1, has seted up down scraper keyway 301 on the hole of lower plane scraper 3, and the hole of going up plane scraper 9 has seted up scraper keyway 302, and scraper keyway 301 is down, and the width and the degree of depth of going up scraper keyway 302 design according to ordinary parallel key correlation standard GB/T1095 and GB/T1096.

As shown in fig. 5, the gasket set includes a thick gasket 12 and a thin gasket 11, a first gasket key groove 303 matching with the lower end flat key 6 is formed on an inner hole of the thick gasket 12, and a second gasket key groove matching with the lower end flat key 6 is formed on an inner hole of the thin gasket 11. The widths and depths of the first gasket key groove 303 and the second gasket key groove are designed according to the related standards GB/T1095 and GB/T1096 of common flat keys.

The method of use of the apparatus foot hinge bolt hole 13 plane scraping of the present invention is described below in connection with 2 embodiments.