CN202276225U

CN202276225U - Motor of high-pressure cleaner

Info

Publication number: CN202276225U
Application number: CN2011203849708U
Authority: CN
Inventors: 孙伟国; 张时焜; 董乾清; 严锋杰
Original assignee: NINGBO FUSLE MECHANICAL MANUFACTURING Co Ltd
Current assignee: NINGBO FUSLE MECHANICAL MANUFACTURING Co Ltd
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2012-06-13
Anticipated expiration: 2021-09-29

Abstract

The utility model discloses a motor of a high-pressure cleaner. The motor comprises a left end cover, a casing, a right end cover, a stator, a rotor and a motor rotating shaft, wherein the casing comprises an outer casing and an inner casing, and a cooling water cavity is formed between the outer casing and the inner casing. The motor further comprises a left sealing ring and a right sealing ring, wherein the left sealing ring is sleeved on the left part of the inner casing and is connected with the outer casing, a first gap is formed between the left sealing ring and the left end cover, the right end cover is pressed on the inner casing and is connected with the left sealing ring and the outer casing, the right sealing ring is sleeved on the right part of the inner casing and is connected with the outer casing, a second gap is formed between the right sealing ring and the right end cover, the right end cover is pressed on the inner casing and is connected with the right sealing ring and the outer casing, first sealing rings are arranged between the right end cover as well as the left end cover and the inner casing, second sealing rings are arranged between the inner casing and the left sealing ring as well as the right sealing ring, and third sealing rings are arranged between the outer casing and the left sealing ring as well as the right sealing ring. According to the utility model, cooling water inside the cooling water cavity can be prevented from permeating into the inner cavity of the inner casing, and a stator coil is prevented from being burned down and the casing and the rotor are prevented from being electrified.

Description

The jetting machine motor

Technical field:

The utility model relates to the drive unit in a kind of jetting machine, specifically is a kind of jetting machine motor.

Background technology:

As shown in Figure 3; Existing jetting machine motor generally comprise left end cap 106, casing, right end cap 100, stator 107, rotor 108 and be rotatably connected to left end cap 106 and right end cap 100 on machine shaft 109; Casing comprises outer cage 103 and inner casing 104; Inner casing 104 is arranged in outer cage 103 inner chambers; Stator 107, rotor 108 and machine shaft 109 are arranged in inner casing 104 inner chambers, and circumferential staggered rows is shown a plurality of water fenders 110 between inner casing 104 and the outer cage 103, and a plurality of water fenders 110 surround a cooling water cavity 102; Water fender 110, inner casing 104 and outer cage 103 are an integral body; Outer cage 103 is provided with water inlet 105 and the delivery port that communicates with cooling water cavity 102, and left end cap 106 all is connected with outer cage 103 with right end cap 100, is equipped with sealing ring 101 between left end cap 106 and outer cage 103 and inner casing 104 and right end cap 100 and outer cage 103 and the inner casing 104.Though above-mentioned jetting machine motor is widely used; But still there are following two defectives in it in actual application: 1, when the cooling water pressure in the cooling water cavity 102 is big slightly; Cooling water will be penetrated in inner casing 104 inner chambers along sealing ring 101, cause stator 107 coils to burn out and casing and rotor charged; 2, the sealing ring 101 that is provided with between left end cap 106 and outer cage 103 and inner casing 104 and right end cap 100 and outer cage 103 and the inner casing 104 is easy to be aging in the long-time back of using; In case sealing ring 101 is aging; Cooling waters in the cooling water cavity 102 will permeate in inner casing 104 inner chambers, finally cause stator 107 coils to burn out and casing and rotor charged.

The utility model content:

The technical problem that the utility model will solve is to provide a kind of and can prevent effectively that the cooling water in the cooling water cavity is penetrated in the inner casing inner chamber, thereby avoid stator coil to burn out and casing and the charged jetting machine motor of rotor.

The technical solution of the utility model is; A kind of jetting machine motor with following structure is provided: comprise left end cap, casing, right end cap, stator, rotor and be rotatably connected to left end cap and right end cap on machine shaft, casing is included as holistic outer cage and inner casing, between outer cage and the inner casing cooling water cavity is arranged; Stator, rotor and machine shaft are arranged in the inner casing inner chamber; Wherein, also comprise left sealing ring and right sealing ring, left seal ring set is connected at the inner casing left part and with outer cage; Between left side sealing ring and the left end cap first gap is arranged; Left end cap is pressed on the inner casing and with left sealing ring and is connected with outer cage, and right seal ring set is connected at the inner casing right part and with outer cage, and second gap is arranged between right sealing ring and the right end cap; Right end cap is pressed on the inner casing and with right sealing ring and is connected with outer cage; Be equipped with first sealing ring between right end cap and the inner casing and between left end cap and the inner casing, be equipped with second sealing ring between inner casing and the left sealing ring and between inner casing and the right sealing ring, be equipped with the 3rd sealing ring between outer cage and the left sealing ring and between outer cage and the right sealing ring.

After adopting above structure, compared with prior art, the utility model jetting machine motor has the following advantages:

1, different with prior art; The utility model jetting machine motor increases left sealing ring and right sealing ring on the original basis; And first gap is arranged between left sealing ring and the left end cap, second gap is arranged, therefore between right sealing ring and the right end cap; When the cooling water pressure in the cooling water cavity is big slightly; The cooling water that penetrates along second sealing ring will flow in first gap and second gap, and finally flows out along first gap and second gap, can not go in the inner casing inner chamber through first sealing ring again.We are not difficult to find out thus, and the utility model jetting machine motor has prevented that the cooling water in the cooling water cavity is penetrated in the inner casing inner chamber, thereby it is charged to avoid burning out stator coil and casing and rotor;

2, when second sealing ring wears out because of long-time use; The cooling water that penetrates along second sealing ring also will flow into the inner casing outside along first gap and second gap, thereby has avoided cooling water in the cooling water cavity to be penetrated in the inner casing inner chamber and to burn out stator coil and casing and rotor charged.

The described jetting machine motor of the utility model; Wherein, Be evenly equipped with first lug that left engaging lug and the left lug on the outer cage on a plurality of and the left end cap match on the sealing ring periphery wall of a left side; Be symmetrically arranged with two second lugs that are used for being connected on the sealing ring periphery wall of a left side with outer cage; Be evenly equipped with the 3rd lug that right engaging lug and the right lug on the outer cage on a plurality of and the right end cap match on the right sealing ring periphery wall, be symmetrically arranged with two the 4th lugs that are used for being connected on the right sealing ring periphery wall with outer cage.

During assembling, through second lug and the 4th lug left sealing ring and right sealing ring are assembled on the outer cage earlier, and then assemble left end cap and right end cap, can guarantee the assembly precision of left sealing ring and right sealing ring like this.

Description of drawings:

Fig. 1 is the stereochemical structure profile sketch map of the utility model jetting machine motor;

Fig. 2 is that the master of the utility model jetting machine motor looks the sectional structure sketch map;

Fig. 3 is that the master of prior art jetting machine motor looks the sectional structure sketch map.

Embodiment:

Below in conjunction with accompanying drawing and embodiment the utility model jetting machine motor is done further explain:

As depicted in figs. 1 and 2; In this embodiment; The utility model jetting machine motor comprise left end cap 17, left sealing ring 16, casing, right sealing ring 10, right end cap 9, stator 26, rotor 27 and be rotatably connected to left end cap 17 and right end cap 9 on machine shaft 28, casing comprises outer cage 5 and inner casing 21, inner casing 21 is arranged in outer cage 5 inner chambers; Stator 26, rotor 27 and machine shaft 28 are arranged in inner casing 21 inner chambers; Stator 26 is connected with inner casing 21, and rotor 27 is connected with machine shaft 28, and circumferential staggered rows is shown a plurality of water fenders 23 between inner casing 21 and the outer cage 5; A plurality of water fenders 23 surround a cooling water cavity 22; Inner casing 21 is linked as an integral body through water fender 23 and outer cage 5, and outer cage 5 is provided with the water inlet 4 and delivery port 3 that communicates with cooling water cavity 22, is evenly equipped with four left lugs 1 on the outer cage 5 left part periphery walls; Be symmetrically arranged with two left boss 14 on the outer cage 5 left part periphery walls; Be evenly equipped with four left engaging lugs 19 that match with left lug 1 on left end cap 17 periphery walls, be evenly equipped with four first lugs 18 that match with left engaging lug 19 and left lug 1 on left sealing ring 16 periphery walls, left sealing ring 16 is enclosed within inner casing 21 left parts; Left end cap 17 is pressed on the inner casing 21; Between a left side sealing ring 16 and the left end cap 17 first gap 2 is arranged, be connected with screw in left engaging lug 19, first lug 18 and the left lug 1, be symmetrically arranged with two on left sealing ring 16 periphery walls and be used for second lug 15 that is connected with left boss 14; Be connected with screw in second lug 15 and the left boss 14; Be evenly equipped with four right lugs 6 on the outer cage 5 right part periphery walls, be symmetrically arranged with two right boss 12 on the outer cage 5 right part periphery walls, be evenly equipped with four right engaging lugs 8 that match with right lug 6 on right end cap 9 periphery walls; Be evenly equipped with four the 3rd lugs 7 that match with right engaging lug 8 and right lug 6 on right sealing ring 10 periphery walls; Right sealing ring 10 is enclosed within inner casing 21 right parts, and right end cap 9 is pressed on the inner casing 21, and second gap 13 is arranged between right sealing ring 10 and the right end cap 9; Be connected with screw in right engaging lug 8, the 3rd lug 7 and the right lug 6; Be symmetrically arranged with on right sealing ring 10 periphery walls in two the 4th lug 11, the four lugs 11 that are used for being connected and the right boss 12 and be connected with screw, be equipped with first sealing ring 25 between right end cap 9 left sides and inner casing 21 right sides and between left end cap 17 right sides and inner casing 21 left sides with right boss 12; Be equipped with second sealing ring 24 between inner casing 21 left part periphery walls and left sealing ring 16 internal chamber walls and between inner casing 21 right part periphery walls and right sealing ring 10 internal chamber walls, be equipped with the 3rd sealing ring 20 between outer cage 5 left sides and left sealing ring 16 right sides and between outer cage 5 right sides and right sealing ring 10 left sides.

Above-described embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that those of ordinary skills make the technical scheme of the utility model all should fall in the definite protection range of the utility model claims.

Claims

1. jetting machine motor; Comprise left end cap (17), casing, right end cap (9), stator (26), rotor (27) and be rotatably connected to left end cap (17) and right end cap (9) on machine shaft (28); Casing is included as holistic outer cage (5) and inner casing (21); Between outer cage (5) and the inner casing (21) cooling water cavity (23) is arranged; Stator (26), rotor (27) and machine shaft (28) are arranged in inner casing (21) inner chamber; It is characterized in that: also comprise left sealing ring (16) and right sealing ring (10); Left side sealing ring (16) is enclosed within inner casing (21) left part and is connected with outer cage (5), between left sealing ring (16) and the left end cap (17) first gap (2) is arranged, and left end cap (17) is pressed in inner casing (21) and upward and with left sealing ring (16) is connected with outer cage (5); Right sealing ring (10) is enclosed within inner casing (21) right part and is connected with outer cage (5); Between right sealing ring (10) and the right end cap (9) second gap (13) is arranged, right end cap (9) is pressed in inner casing (21) and upward and with right sealing ring (10) is connected with outer cage (5), is equipped with first sealing ring (25) between right end cap (9) and the inner casing (21) and between left end cap (17) and the inner casing (21); Be equipped with second sealing ring (24) between inner casing (21) and the left sealing ring (16) and between inner casing (21) and the right sealing ring (10), be equipped with the 3rd sealing ring (20) between outer cage (5) and the left sealing ring (16) and between outer cage (5) and the right sealing ring (10).

2. jetting machine motor according to claim 1; It is characterized in that: be evenly equipped with first lug (18) that left engaging lug (19) and the left lug (1) on the outer cage (5) on a plurality of and the left end cap (17) match on left sealing ring (16) periphery wall; Be symmetrically arranged with two on sealing ring (16) periphery wall of a left side and be used for second lug (15) that is connected with outer cage (5); Be evenly equipped with the 3rd lug (7) that right engaging lug (8) and the right lug (6) on the outer cage (5) on a plurality of and the right end cap (9) match on right sealing ring (10) periphery wall, be symmetrically arranged with two on right sealing ring (10) periphery wall and be used for the 4th lug (11) that is connected with outer cage (5).