CN213117377U

CN213117377U - Sealing mechanism of electric push rod reduction box

Info

Publication number: CN213117377U
Application number: CN202021427569.3U
Authority: CN
Inventors: 冯云峰; 马巧芬
Original assignee: Zhejiang Linix Motor Co Ltd
Current assignee: Zhejiang Linix Motor Co Ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-05-04
Anticipated expiration: 2030-07-20

Abstract

The utility model relates to a sealing mechanism of electric putter reducing gear box, including case lid, middle box, box and the motor housing that sets gradually, the junction of case lid and middle box is sealed through the first sealing washer of locating between case lid and the middle box, the junction of middle box and box is sealed through the second sealing washer of locating between middle box and the box, the junction of box and motor housing is sealed through the third sealing washer of locating between box and the motor housing. The utility model has the characteristics of prevent that the foreign matter from getting into the box, and prevent that the machine oil in the box from oozing, the leakproofness is good etc.

Description

Sealing mechanism of electric push rod reduction box

Technical Field

The utility model belongs to a seal structure, concretely relates to sealing mechanism of electric putter reducing gear box.

Background

The gear reducer is generally used for transmission equipment with low rotating speed and large torque, and the common reducer of the motor also has several pairs of gears with the same principle to achieve an ideal speed reduction effect, and the ratio of the number of the teeth of the large gear to the number of the teeth of the small gear is the transmission ratio. With the continuous development of the speed reducer industry, more and more enterprises apply the speed reducer.

The box sealing performance of speed reducer is the assurance of whole equipment good operation, prevents that the foreign matter from getting into the box, prevents simultaneously that the machine oil in the box from oozing.

Disclosure of Invention

An object of the utility model is to provide a sealing mechanism of electric putter reducing gear box has solved the foreign matter that prior art exists and has got into the box and the machine oil oozes the scheduling problem.

The above technical purpose of the present invention is mainly solved by the following technical solutions: a sealing mechanism of an electric push rod reduction gearbox comprises a box cover, a middle box body, a box body and a motor housing which are sequentially arranged, wherein the joint of the box cover and the middle box body is sealed by a first sealing ring arranged between the box cover and the middle box body, the joint of the middle box body and the box body is sealed by a second sealing ring arranged between the middle box body and the box body, and the joint of the box body and the motor housing is sealed by a third sealing ring arranged between the box body and the motor housing; the arrangement of the first sealing ring, the second sealing ring and the third sealing ring ensures that gaps among the box cover, the middle box body, the box body and the motor housing can be reliably sealed, foreign matters can be effectively prevented from entering the box body, and engine oil in the box body is prevented from seeping out.

Preferably, a first placing groove for placing a first sealing ring is formed in one end, opposite to the box cover, of the middle box body; above-mentioned first standing groove and first sealing washer cooperation form seal structure, and it is more convenient to set up first standing groove processing on middle box, and more for the structure on the middle box case lid, and irregular, the processing degree of difficulty is high.

Preferably, a second placing groove and a third placing groove for placing a second sealing ring and a third sealing ring are respectively arranged at two ends of the box body; the placing grooves are formed in the two ends of the box body, so that the sealing structure is formed by matching with the sealing ring, the placing grooves are formed in the box body, the box body is simple and convenient to machine, the structure of the middle box body is more complex, the structure of the box body is simple, and machining is convenient.

Preferably, a first annular bulge, a second annular bulge and a third annular bulge are respectively arranged on one end face of the first sealing ring, the second sealing ring and the third sealing ring; the first annular bulge, the second annular bulge and the third annular bulge are arranged, so that the first annular bulge, the second annular bulge and the third annular bulge are arranged, the thickness of the sealing ring is increased, the gap filling effect between each component is enhanced, and the sealing performance is enhanced.

Preferably, when the first sealing ring, the second sealing ring and the third sealing ring are respectively placed in the first placing groove, the second placing groove and the third placing groove, the first annular bulge, the second annular bulge and the third annular bulge are all arranged outwards; to the setting of each annular bulge, when making each sealing washer in each standing groove, can form the extrusion force to the annular bulge, thereby play the effect of filling the gap between each part, effectively strengthen sealing strength.

Preferably, the first sealing ring and the second sealing ring are both provided with a plurality of through holes for bolts to pass through, and the first annular bulge and the second annular bulge are both provided with a plurality of circular bulges for bolts to pass through; above-mentioned through-hole and circular bellied setting to seal the gap between bolt and the through-hole, increase sealed coverability, and the third seal circles because of being connected with the motor, and the cooperation structure is less, need not to set up through-hole and circular arch on the third seal from this.

Therefore, the utility model has the characteristics of prevent that the foreign matter from getting into the box, and prevent that the machine oil in the box from oozing, the leakproofness is good etc.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an exploded view of the structure of FIG. 1;

fig. 3 is a schematic view of the structure of fig. 2 from another perspective.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

As shown in fig. 1-3, a sealing mechanism of an electric push rod reduction gearbox comprises a box cover 1, a middle box body 2, a box body 3 and a motor housing 4 which are sequentially arranged, wherein the joint of the box cover 1 and the middle box body 2 is sealed by a first sealing ring 21 arranged between the box cover 1 and the middle box body 2, the joint of the middle box body 2 and the box body 3 is sealed by a second sealing ring 31 arranged between the middle box body 2 and the box body 3, the joint of the box body 3 and the motor housing 4 is sealed by a third sealing ring 32 arranged between the box body 3 and the motor housing 4, and the arrangement of the first sealing ring, the second sealing ring and the third sealing ring ensures that gaps among the box cover, the middle box body, the box body and the motor housing can be reliably sealed, so that foreign matters can be effectively prevented from entering the box body, and engine oil in the box; all be equipped with a plurality of through-holes 212 that are used for supplying the bolt to pass on first sealing washer 21 and the second sealing washer 31, all be equipped with a plurality of circular archs 213 that are used for supplying the bolt to pass on first annular arch 211 and the second annular arch 311, above-mentioned through-hole and circular bellied setting set up to seal the gap between bolt and the through-hole, increase sealed coverability, and because of being connected with the motor on the third sealing washer, the cooperation structure is less, need not to set up through-hole and circular arch on the third sealing washer from this.

When the box cover 1, the middle box body 2, the box body 3 and the motor housing 4 are sequentially and tightly connected, the first sealing ring 21, the second sealing ring 31 and the third sealing ring 32 are sequentially placed in the first placing groove 22, the second placing groove 33 and the third placing groove 34, and gaps among all parts are filled while all annular bulges are extruded, so that stronger sealing performance is achieved.

A first placing groove 22 for placing a first sealing ring 21 is formed in the middle box body 2 corresponding to one end opposite to the box cover 1, the first placing groove is matched with the first sealing ring to form a sealing structure, the first placing groove is formed in the middle box body, the middle box body is more convenient to machine, and compared with the middle box body, the box cover is more in structure, irregular and high in machining difficulty; the two ends of the box body 3 are respectively provided with a second placing groove 33 and a third placing groove 34 which are used for placing a second sealing ring 31 and a third sealing ring 32, the placing grooves are arranged at the two ends of the box body so as to form a sealing structure in cooperation with the sealing rings, meanwhile, the placing grooves are arranged on the box body, the processing is simple and convenient, and compared with the box body, the structure of the middle box body is more complex, the structure of the box body is simple, and the processing is convenient.

A first annular bulge 211, a second annular bulge 311 and a third annular bulge 321 are respectively arranged on one end surface of the first sealing ring 21, the second sealing ring 31 and the third sealing ring 32, and the arrangement of the first annular bulge, the second annular bulge and the third annular bulge ensures that the arrangement of the first annular bulge, the second annular bulge and the third annular bulge is convenient for increasing the thickness of the sealing rings, so that the gap filling effect among all parts is enhanced, and the sealing performance is enhanced; when the first sealing ring 21, the second sealing ring 31 and the third sealing ring 32 are respectively placed in the first placing groove 22, the second placing groove 33 and the third placing groove 34, the first annular protrusion 211, the second annular protrusion 311 and the third annular protrusion 321 are all arranged outwards, and for the arrangement of each annular protrusion, when each sealing ring is placed in each placing groove, the annular protrusion can form extrusion force, so that the effect of filling gaps among all parts is achieved, and the sealing strength is effectively enhanced.

Claims

1. The utility model provides a sealing mechanism of electric putter reducing gear box, includes case lid (1), middle box (2), box (3) and motor housing (4) that set gradually in proper order, its characterized in that: the junction of case lid (1) and middle box (2) is sealed through locating first sealing washer (21) between case lid (1) and middle box (2), the junction of middle box (2) and box (3) is sealed through locating second sealing washer (31) between middle box (2) and box (3), the junction of box (3) and motor housing (4) is sealed through locating third sealing washer (32) between box (3) and motor housing (4).

2. The sealing mechanism of the electric push rod reduction gearbox according to claim 1, characterized in that: a first placing groove (22) for placing a first sealing ring (21) is formed in the middle box body (2) corresponding to one end opposite to the box cover (1).

3. The sealing mechanism of the electric push rod reduction gearbox according to claim 1, characterized in that: and a second placing groove (33) and a third placing groove (34) for placing a second sealing ring (31) and a third sealing ring (32) are respectively arranged at two ends of the box body (3).

4. The sealing mechanism of the electric push rod reduction gearbox according to claim 1, characterized in that: and a first annular bulge (211), a second annular bulge (311) and a third annular bulge (321) are respectively arranged on one end surface of the first sealing ring (21), the second sealing ring (31) and the third sealing ring (32).

5. The sealing mechanism of the electric push rod speed reduction box according to claim 4, characterized in that: when the first sealing ring (21), the second sealing ring (31) and the third sealing ring (32) are respectively placed in the first placing groove (22), the second placing groove (33) and the third placing groove (34), the first annular bulge (211), the second annular bulge (311) and the third annular bulge (321) are all arranged outwards.

6. The sealing mechanism of the electric push rod speed reduction box according to claim 4 or 5, characterized in that: the first sealing ring (21) and the second sealing ring (31) are provided with a plurality of through holes (212) for bolts to pass through, and the first annular bulge (211) and the second annular bulge (311) are provided with a plurality of circular bulges (213) for bolts to pass through.