CN111490623A - Generator - Google Patents

Abstract

The invention relates to the technical field of power generation, in particular to a generator which comprises a front end cover and a rear end cover, wherein a first protrusion positioning structure or a first positioning groove is arranged on the right side of the front end cover, and a second protrusion positioning structure or a second positioning groove is arranged on the left side of the rear end cover. When front end housing and rear end cap installation assembly, install first protruding location structure in second positioning groove earlier, perhaps, in the first positioning groove of protruding location structure installation of second, carry out preliminary location to front end housing and rear end cap installation assembly, confirm the relative position of front end housing and rear end cap assembly, then carry out connecting screw to match and pass front end housing and rear end cap and link together front end housing and rear end cap, accomplish the installation assembly of generator, in addition, first protruding location structure, front end housing and rear end cap installation direction have been injectd to the second positioning groove, the mistake proofing structure of generator installation assembly has also been constituted, the installation assembly of the generator of being convenient for more, do benefit to the popularization.

Description

dynamo

technical field

The present invention relates to the technical field of power generation, and in particular, to a generator.

Background technique

At present, the generator includes a front end cover and a rear end cover. The front end cover and the rear end cover of the generator are provided with connecting through holes in the circumferential direction. The connecting through holes of the rear end cover are provided with bushing nuts, and the connecting bolts are matched through the front end. The connecting through hole of the cover and the bushing nut of the rear cover connect the front cover and the rear cover together. Since there is no positioning device on the front cover and the rear cover, the connecting through hole of the front cover and the bushing of the rear cover are connected together. The nuts are inconvenient to align, resulting in inconvenient assembly of the front and rear end caps.

SUMMARY OF THE INVENTION

The technical problem solved by the present invention is to provide a generator that is easy to install and assemble.

The technical solution adopted by the present invention to solve the technical problem is as follows: the generator includes a front end cover and a rear end cover, the right side of the front end cover is provided with a first convex positioning structure or a first positioning groove, and the left side of the rear end cover A second convex positioning structure or a second positioning groove is provided, and the first convex positioning structure is matched in the second positioning groove, or the second convex positioning structure is matched in the first positioning groove.

Further, the first convex positioning structure is adapted to the structure of the second positioning groove, and the shape of the first convex positioning structure is a convex shape.

Further, it also includes connecting bolts, square nuts, limit washers, and positioning bushings, the front end cover is provided with a first mounting lug in the circumferential direction, The mounting lug is provided with a first connecting through hole, the second mounting lug is provided with a second connecting through hole, the second connecting through hole includes a large hole section and a small hole section that are connected in sequence, and the small hole section is located in the large hole. On the right side of the segment, the cross-sectional shape of the small hole segment is square;

The outer diameter of the limit washer is larger than the outer diameter of the square nut. The limit washer is connected to the left side of the square nut. The cross-sectional shape of the square nut is the same as that of the small hole section. The square nut is matched and set in the small hole section. , and the connection between the square nut and the small hole segment is a clearance fit;

The positioning bushing is made of elastic material, and the positioning bushing is provided with an elastic opening structure arranged in the axial direction. On the left side, the connection and fit between the limit gasket and the large hole section is clearance fit, and the connection and fit between the positioning bushing and the large hole section is interference fit;

The connecting bolts are arranged through the first connecting through hole, the positioning bush, the limit washer and the square nut to connect the front end cover and the rear end cover together.

Further, the cross-sectional shape of the small hole segment is a hexagon.

Further, the square nut and the limit washer are integrated into one structure.

Further, the shape of the large hole section is cylindrical, and the shape of the positioning bushing is cylindrical.

Further, the minimum inner diameter of the positioning bush is larger than the outer diameter of the connecting bolt.

The beneficial effects of the present invention are: by setting the first convex positioning structure or the first positioning groove on the right side of the front end cover, and the left side of the rear end cover with the second convex positioning structure or the second positioning groove, The first convex positioning structure is matched and arranged in the second positioning groove, or, the second convex positioning structure is matched and arranged in the first positioning groove, the first convex positioning structure, the second positioning groove or the second convex positioning structure is matched and arranged in the first positioning groove. The positioning structure and the first positioning groove constitute the positioning structure of the front end cover and the rear end cover. When the front end cover and the rear end cover are installed and assembled, the first convex positioning structure is first installed in the second positioning groove, or the second convex positioning structure is installed in the first positioning groove, and the front end cover and the rear end cover are installed in the first positioning groove. Preliminary positioning of the installation and assembly is carried out to determine the relative positions of the front end cover and the rear end cover assembly, and then the connecting bolts are matched through the front end cover and the rear end cover to connect the front end cover and the rear end cover, and complete the installation and assembly of the generator. In addition, the first convex positioning structure, the second positioning groove or the second convex positioning structure and the first positioning groove define the installation directions of the front end cover and the rear end cover, and also constitute a wrong-proof structure for the installation and assembly of the generator. It is more convenient for the installation and assembly of the generator, which is conducive to promotion.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the enlarged view of A place in Fig. 1;

Fig. 3 is the partial structure schematic diagram of the second mounting lug;

Figure 4 is a schematic view of the square nut installed in the second mounting lug;

Figure 5 is a schematic view of the positioning bushing installed in the second mounting lug;

Marked as: front cover 1, first mounting lug 11, first raised positioning structure 12, rear end cover 2, second mounting lug 21, large hole section 211, small hole section 212, second positioning groove 22 , The first connecting through hole 3 , the square nut 4 , the limiting washer 5 , the positioning bushing 6 , and the elastic opening structure 61 .

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

The orientations referred to below are based on the orientations of the various components in FIG. 1 .

As shown in FIG. 1, the generator of the present invention includes a front end cover 1 and a rear end cover 2. The right side of the front end cover 1 is provided with a first convex positioning structure 12 or a first positioning groove, and the left side of the rear end cover 2 is provided with a first convex positioning structure 12 or a first positioning groove. A second convex positioning structure or a second positioning groove 22 is provided, the first convex positioning structure 12 is matched and arranged in the second positioning groove 22, or the second convex positioning structure is matched and arranged in the first positioning groove middle.

The first convex positioning structure 12 , the second positioning groove 22 or the second convex positioning structure and the first positioning groove constitute the positioning structure of the front end cover 1 and the rear end cover 2 . When the front end cover 1 and the rear end cover 2 are installed and assembled, the first convex positioning structure 12 is first installed in the second positioning groove 22, or the second convex positioning structure is installed in the first positioning groove, and the front end cover is installed in the first positioning groove. 1 and the rear end cover 2 are installed and assembled to perform preliminary positioning, determine the relative positions of the front end cover 1 and the rear end cover 2, and then match the connecting bolts through the front end cover 1 and the rear end cover 2 to connect the front end cover 1 and the rear end cover. 2 are connected together to complete the installation and assembly of the generator. In addition, the first convex positioning structure 12, the second positioning groove 22 or the second convex positioning structure and the first positioning groove define the front end cover 1 and the rear end cover. 2. The installation direction also constitutes an error-proof structure for the installation and assembly of the generator, which is more convenient for the installation and assembly of the generator and is conducive to promotion.

Specifically, in order to facilitate processing, it is preferred in the present invention that the middle position of the right side of the front end cover 1 is provided with a first convex positioning structure 12, the middle position of the left side of the rear end cover 2 is provided with a second positioning groove 22, and the first convex position The starting positioning structure 12 is adapted to the structure of the second positioning groove 22 . In order to increase the contact area between the first convex positioning structure 12 and the second positioning groove 22 and improve the positioning function, the shape of the first convex positioning structure 12 is preferably a convex shape. Furthermore, in order to facilitate the installation of the first protruding positioning structure 12 in the second positioning groove 22, the first convex positioning structure 12 and the second positioning groove 22 are connected and matched by a clearance fit, and the clearance fit can also be used for the second positioning groove 22. The position of a raised positioning structure 12 in the second positioning groove 22 is adjusted according to the actual situation.

The generator of the present invention is installed on the engine, and the front end cover 1, the rear end cover 2 and the engine cylinder block of the generator need to be abutted together to form a mutual limit and fixation. As shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, the generator of the present invention is further provided with connecting bolts, square nuts 4, limit washers 5, and positioning bushings 6. A first mounting lug 11 is provided, a second mounting lug 21 is provided in the circumferential direction of the rear end cover 2, a first connecting through hole 3 is provided in the first mounting lug 11, and a second mounting lug 21 is provided with a The second connecting through hole. The second connecting through hole includes a large hole section 211 and a small hole section 212 connected in sequence, and the small hole section is located on the right side of the large hole section 211. The cross-sectional shape of the small hole section is square, and the large hole section is square. The inner diameter of 211 is larger than the inner diameter of the small hole section 212 .

The outer diameter of the limit washer 5 is larger than the outer diameter of the square nut 4. The limit washer 5 is connected and arranged on the left side of the square nut 4. The cross-sectional shape of the square nut 4 is the same as that of the small hole section 212. The square nut 4 The matching is arranged in the small hole section 212, and the connection and matching method of the square nut 4 and the small hole section 212 is a clearance fit; the positioning bushing 6 and the limit washer 5 are matched and arranged in the large hole section 211, and the positioning bushing 6 Located on the left side of the limit washer 5, the connection between the limit washer 5 and the large hole section 211 is clearance fit; the positioning bushing 6 is made of elastic material, and the positioning bushing 6 is provided with axially arranged The elastic opening structure 61 of the locating bush 6 and the large hole section 211 are connected by interference fit, and the inner diameter of the locating bush 6 can be appropriately changed, so that the positioning bush 6 and the limiting washer 5 can only be used in the large Position adjustment is performed in the hole section 211 .

The connecting bolts are arranged through the first connecting through hole 3 , the positioning bushing 6 , the limiting washer 5 , and the square nut 4 to connect the front end cover 1 and the rear end cover 2 together.

The square nut 4 is matched and arranged in the small hole section 212, so that the square nut 4 will not rotate in the circumferential direction in the small hole section 212, and the connecting bolt will not rotate along with it, thereby improving the installation and connection effect. The positioning bushing 6 is made of elastic material. The positioning bushing 6 is provided with an elastic opening structure 61 arranged in the axial direction. The inner diameter can be changed appropriately, the connection and fit between the square nut 4 and the small hole section 212 is clearance fit, the connection and fit between the limit washer 5 and the large hole section 211 is clearance fit, and the interference fit and clearance fit ensure the smoothness of the connection. The tightness allows the square nut 4, the positioning bushing 6, and the limit washer 5 to be adjusted in a certain position according to the actual installation situation when the generator is installed. Set through the first connecting through hole 3, the positioning bush 6, the limit washer 5, and the square nut 4, especially when there are multiple sets of connecting bolts, the first mounting lugs 11, the second mounting lugs 21 and other connecting structures Moreover, this arrangement is also more convenient for the front end cover 1, the rear end cover 2 and the engine cylinder to abut against each other to complete the installation of the engine.

The cross-sectional shape of the small hole section 212 is quadrilateral, hexagonal, octagonal, etc. The present invention is preferably hexagonal, which is convenient for processing and ensures the use effect. In order to facilitate the processing of the square nut 4 and the limit washer 5 and to facilitate the adjustment of the position during installation, the square nut 4 and the limit washer 5 are preferably integrated, and the square nut 4 and the limit washer 5 constitute a flange nut structure , just choose the appropriate flange nut.

In order to facilitate the installation and connection operation, the shape of the large hole section 211 is preferably a cylindrical shape, and the shape of the positioning bushing 6 is preferably a cylindrical shape. Further, the positioning bushing 6 is made of elastic material, and the positioning bushing 6 is provided with an elastic opening structure 61 arranged in the axial direction. The inner diameter of the positioning bushing 6 can be changed according to the inner diameter of the large hole section 211, so that the positioning bushing The sleeve 6 is suitable for large hole segments 211 with different inner diameters, which improves the versatility of the positioning bushing 6 . In order to make it easier for the connecting bolt to pass through the first connecting through hole 3, the limit washer 5 and the square nut 4, the minimum inner diameter of the positioning bushing 6 is larger than the outer diameter of the connecting bolt. When the connecting bolt is connected and fixed, the positioning bushing 6 does not It will interfere with the connecting bolt, which is more convenient for the installation and use of the connecting bolt.

Claims (7)

1. A generator, comprising a front end cover (1) and a rear end cover (2), characterized in that: the right side of the front end cover (1) is provided with a first raised positioning structure (12) or a first positioning groove, The left side of the end cover (2) is provided with a second convex positioning structure or a second positioning groove (22), and the first convex positioning structure (12) is matched and arranged in the second positioning groove (22), or, The second convex positioning structure is matched and arranged in the first positioning groove. 2. The generator according to claim 1, characterized in that: the first convex positioning structure (12) is adapted to the structure of the second positioning groove (22), and the first convex positioning structure (12) The shape is convex. 3. The generator according to claim 1, characterized in that it further comprises connecting bolts, square nuts (4), limit washers (5), positioning bushings (6), and the circumferential direction of the front end cover (1) A first mounting lug (11) is provided, a second mounting lug (21) is provided in the circumferential direction of the rear end cover (2), and a first connecting through hole (3) is provided in the first mounting lug (11). , the second mounting lug (21) is provided with a second connecting through hole, the second connecting through hole includes a large hole section (211) and a small hole section (212) connected in sequence, and the small hole section is located in the large hole section (212). 211) on the right side, the cross-sectional shape of the small hole segment is square; The outer diameter of the limit washer (5) is larger than the outer diameter of the square nut (4), the limit washer (5) is connected and arranged on the left side of the square nut (4), and the cross-sectional shape of the square nut (4) is related to the small hole The section (212) has the same cross-sectional shape, the square nut (4) is matched and arranged in the small hole section (212), and the connection and fitting mode of the square nut (4) and the small hole section (212) is clearance fit; The positioning bushing (6) is made of elastic material, the positioning bushing (6) is provided with an elastic opening structure (61) arranged in the axial direction, and the positioning bushing (6) and the limit washer (5) are matched and arranged on the In the large hole section (211), and the positioning bushing (6) is located on the left side of the limit washer (5), the connection between the limit washer (5) and the large hole section (211) is a clearance fit, and the positioning The connection and fit between the bushing (6) and the large hole section (211) is interference fit; The connecting bolts are arranged through the first connecting through hole (3), the positioning bushing (6), the limit washer (5), and the square nut (4) to connect the front end cover (1) and the rear end cover (2) to the Together. 4. The generator according to claim 3, wherein the cross-sectional shape of the small hole section (212) is a hexagon. 5 . The generator according to claim 3 , wherein the square nut ( 4 ) and the limiting washer ( 5 ) are integrated in structure. 6 . 6. The generator according to any one of claims 3 to 5, characterized in that: the shape of the large hole section (211) is cylindrical, and the shape of the positioning bush (6) is cylindrical. 7. The generator according to claim 3, characterized in that the minimum inner diameter of the positioning bush (6) is larger than the outer diameter of the connecting bolt.

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