CN209488318U - A kind of sealing structure of micro machine casing - Google Patents

Abstract

The utility model discloses a kind of sealing structures of micro machine casing, including electric machine casing, the lower end outside of the electric machine casing is fixedly connected with outer pitch thread, the electric machine casing lower end outside is connected with lower cover, interior pitch thread is fixedly connected in the lower cover, the electric machine casing upper end offers limiting slot, limiting slot lower end offers the first perforation around setting in the electric machine casing, being connected together in the limiting slot has sealing ring, the second perforation around setting is offered on the sealing ring, the electric machine casing upper end is connected with upper end cover, the upper end cover upper end is fixedly connected with shaft mouth, the threaded hole, bolt is connected in first perforation and the second perforation.The sealing structure of the micro machine casing enhances the leakproofness of lower end, convenient for the disassembly of electric machine casing and lower cover, further strengthens the leakproofness between electric machine casing and upper end cover, improves the service life of micro machine.

Description

A kind of sealing structure of micro machine casing

Technical field

The utility model relates to micro machine technical field, specially a kind of sealing structure of micro machine casing.

Background technique

Micro machine is small in size and capacity is smaller, is mainly used in the control system or gearing load of precision machinery, tool There is low noise, light-weight.

With the continuous development of science and technology, original mechanical structure and equipment volume are gradually reduced, and should meet specific Structural object meet functional objective again, therefore the appearance of micro machine is essential, avoids due to the big bring of motor volume Assembly difficulty, but existing micro machine casing, which is generally whole structure, to be existed and be inconvenient to dismantle and not strong scarce of leakproofness Point.

Utility model content

The purpose of this utility model is to provide a kind of sealing structures of micro machine casing, to solve in above-mentioned background technique Proposition is inconvenient to dismantle and the not strong problem of leakproofness.

To achieve the above object, the utility model provides the following technical solutions: a kind of sealing structure of micro machine casing, packet Electric machine casing is included, the lower end outside of the electric machine casing is fixedly connected with outer pitch thread, the electric machine casing lower end outside activity It is connected with lower cover, interior pitch thread is fixedly connected in the lower cover, the electric machine casing upper end offers limiting slot, described Limiting slot lower end offers the first perforation around setting in electric machine casing, and being connected together in the limiting slot has sealing ring, institute The second perforation offered on sealing ring around setting is stated, the electric machine casing upper end is connected with upper end cover, the upper end It covers end and is fixedly connected with shaft mouth, the threaded hole around setting, the threaded hole, the first perforation are offered on the upper end cover Bolt is connected with in the second perforation.

Preferably, the diameter of the electric machine casing, lower cover and upper end cover is equal.

Preferably, the outer pitch thread and interior pitch thread are to be threadedly coupled, and the height of outer pitch thread is equal to interior pitch thread Height.

Preferably, the height of the limiting slot is equal to the height of sealing ring, and the width of limiting slot is greater than the width of sealing ring Degree.

Preferably, it is described first perforation, second perforation it is equal with the diameter of threaded hole, and first perforation, second perforation and The central point consistency from top to bottom of threaded hole.

Preferably, the bolt is provided with 4, and bolt, the first perforation, the second perforation and threaded hole correspond, and And the height of bolt is greater than the sum of sealing ring and the height of upper end cover.

Compared with prior art, the utility model has the beneficial effects that the sealing structure of the micro machine casing, existing On the basis of micro machine casing, the outer pitch thread of addition, lower cover, interior pitch thread, limiting slot, sealing ring and upper end cover have been carried out Lower cover and electric machine casing are sealed by being used cooperatively for outer pitch thread and interior pitch thread, enhance the sealing of lower end by change Property, while being convenient for the disassembly of electric machine casing and lower cover, by being used cooperatively for limiting slot, sealing ring and upper end cover, further The leakproofness reinforced between electric machine casing and upper end cover is sealed electric machine casing by the cooperation of upper and lower side, reduces ash in air Dirt, liquid etc. enter a possibility that in shell, improve the service life of micro machine.

Detailed description of the invention

Fig. 1 is the utility model schematic perspective view；

Fig. 2 is the utility model positive structure schematic；

Fig. 3 is the utility model overlooking structure diagram.

In figure: 1, electric machine casing；2, outer pitch thread；3, lower cover；4, interior pitch thread；5, limiting slot；6, the first perforation；7, Sealing ring；8, the second perforation；9, upper end cover；10, shaft mouth；11, threaded hole；12, bolt.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of sealing structure of micro machine casing, including Electric machine casing 1, outer pitch thread 2, lower cover 3, interior pitch thread 4, limiting slot 5, first perforation 6, sealing ring 7, second perforation 8, on End cap 9, shaft mouth 10, threaded hole 11 and bolt 12, the lower end outside of electric machine casing 1 are fixedly connected with outer pitch thread 2, motor casing 1 lower end outside of body is connected with lower cover 3, and interior pitch thread 4 is fixedly connected in lower cover 3, and 1 upper end of electric machine casing offers Limiting slot 5,5 lower end of limiting slot offers the first perforation 6 around setting in electric machine casing 1, and being connected together in limiting slot 5, there have to be close Seal 7 offers the second perforation 8 around setting on sealing ring 7, and 1 upper end of electric machine casing is connected with upper end cover 9, upper end 9 upper end of lid is fixedly connected with shaft mouth 10, and the threaded hole 11 around setting is offered on upper end cover 9, and threaded hole 11, first is perforated 6 and second perforation 8 in be connected with bolt 12；

Further, electric machine casing 1, lower cover 3 are equal with the diameter of upper end cover 9, pass through electric machine casing 1,3 and of lower cover Upper end cover 9 is used cooperatively, and 1 upper and lower ends of electric machine casing are sealed, and reduces external dust to the damage in electric machine casing 1；

Further, outer pitch thread 2 and interior pitch thread 4 are to be threadedly coupled, and the height of outer pitch thread 2 is equal to interior pitch thread 4 height reinforces the leakproofness between electric machine casing 1 and lower cover 3 by being used cooperatively for outer pitch thread 2 and interior pitch thread 4, All impurity are prevented to enter from lower cover 3；

Further, the height of limiting slot 5 is equal to the height of sealing ring 7, and the width of limiting slot 5 is greater than sealing ring 7 Width reinforces the fastness between 1 upper end cover 9 of electric machine casing by being used cooperatively for limiting slot 5 and sealing ring 7, while reinforcing electricity Leakproofness between 1 upper end cover 9 of casing body；

Further, first the 6, second perforation 8 of perforation is equal with the diameter of threaded hole 11, and first the 6, second perforation of perforation 8 and threaded hole 11 central point consistency from top to bottom, it is ensured that bolt 12 can be solid between first the 6, second perforation 8 of perforation and threaded hole 11 It is fixed；

Further, bolt 12 is provided with 4, and 6, second perforation 8 of the perforation of bolt 12, first and threaded hole 11 1 are a pair of It answers, and the height of bolt 12 is greater than the sum of sealing ring 7 and the height of upper end cover 9, is worn by the perforation of bolt 12, first 6, second Hole 8 and threaded hole 11 are used cooperatively, and 1 upper end cover 9 of electric machine casing is fixed.

Working principle: it first as shown in Figure 1, rotation lower cover 3, interior pitch thread 4 is threadedly coupled with outer pitch thread 2, covers Upper and lower end cap 3, motor is put into electric machine casing 1, then sealing ring 7 is put into limiting slot 5, by the first perforation 6 and second 8 alignment of perforation, covers upper end cover 9, and one end of motor shaft is exposed from shaft mouth 10, then threaded hole 11 and second is perforated 8 alignment, as shown in Fig. 2, bolt 12 is put into threaded hole 11, rotating bolt 12, then bolt 12 passes through the second perforation 8 and the One perforation, 6 connection completes the sealing of micro machine casing until 9 lower end of upper end cover is bonded with sealing ring 7 and 1 upper end of electric machine casing, A possibility that dust in air, liquid etc. are entered in electric machine casing 1 is reduced, the service life of micro machine is improved.

Finally it should be noted that the above content is only to illustrate the technical solution of the utility model, rather than it is practical to this The limitation of novel protected range, those skilled in the art to the technical solution of the utility model carry out it is simple modification or Person's equivalent replacement, all without departing from the spirit and scope of technical solutions of the utility model.

Claims (6)

1. a kind of sealing structure of micro machine casing, including electric machine casing (1), it is characterised in that: under the electric machine casing (1) End outside is fixedly connected with outer pitch thread (2), and electric machine casing (1) lower end outside is connected with lower cover (3), under described It is fixedly connected with interior pitch thread (4) in end cap (3), electric machine casing (1) upper end offers limiting slot (5), the motor casing Body (1) interior limiting slot (5) lower end offers the first perforation (6) around setting, and being connected together in the limiting slot (5) has sealing It encloses (7), the second perforation (8) around setting is offered on the sealing ring (7), electric machine casing (1) upper end is flexibly connected Have upper end cover (9), upper end cover (9) upper end is fixedly connected with shaft mouth (10), and circular set is offered on the upper end cover (9) The threaded hole (11) set, the threaded hole (11), the first perforation (6) and second are perforated, and (8) are interior to be connected with bolt (12).

2. a kind of sealing structure of micro machine casing according to claim 1, it is characterised in that: the electric machine casing (1), The diameter of lower cover (3) and upper end cover (9) is equal.

3. a kind of sealing structure of micro machine casing according to claim 1, it is characterised in that: the outer pitch thread (2) It is to be threadedly coupled, and the height of outer pitch thread (2) is equal to the height of interior pitch thread (4) with interior pitch thread (4).

4. a kind of sealing structure of micro machine casing according to claim 1, it is characterised in that: the limiting slot (5) Height is equal to the height of sealing ring (7), and the width of limiting slot (5) is greater than the width of sealing ring (7).

5. a kind of sealing structure of micro machine casing according to claim 1, it is characterised in that: first perforation (6), The diameter of second perforation (8) and threaded hole (11) is equal, and the center of the first perforation (6), the second perforation (8) and threaded hole (11) Point consistency from top to bottom.

6. a kind of sealing structure of micro machine casing according to claim 1, it is characterised in that: bolt (12) setting There are 4, and bolt (12), the first perforation (6), the second perforation (8) and threaded hole (11) correspond, and the height of bolt (12) Degree is greater than the sum of the height of sealing ring (7) and upper end cover (9).