CN203730720U - Casing airtight structure - Google Patents
Casing airtight structure Download PDFInfo
- Publication number
- CN203730720U CN203730720U CN201420090623.8U CN201420090623U CN203730720U CN 203730720 U CN203730720 U CN 203730720U CN 201420090623 U CN201420090623 U CN 201420090623U CN 203730720 U CN203730720 U CN 203730720U
- Authority
- CN
- China
- Prior art keywords
- shell
- packing ring
- ring
- type
- lid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012856 packing Methods 0.000 claims description 74
- 238000010276 construction Methods 0.000 claims description 10
- 238000005192 partition Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000008041 oiling agent Substances 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model provides a casing airtight structure and relates to airtight structures of wiring throughout portions of a gearbox of a motor steering device of an automobile and a shell of an actuating mechanism. The casing airtight structure is characterized in that a gasket is arranged in the position where a wiring penetrates the partition portion of the shell, the shell is composed of a shell body, a shell cover and an internal shell component, the internal shell component is used for partitioning the interior of the shell, and grooves clamped with O-shaped rings and protrusions clamped with the internal shell component are partially arranged on the outer peripheral surface of the gasket.
Description
Technical field
The utility model relates to the airtight construction of the shell of gear-box, the motor etc. of use in general industry machinery and automobile, outboard motor etc.
Background technique
In the shell of gear-box and actuator etc. that is built-in with the sensor elements such as the mechanical part of reduction gear, angular sensor, torque sensor, outside shell, do not spill and become airtight construction in order to make to be coated in the oiling agents such as the lubricating grease on mechanical part.In order to prevent spilling and the intrusion of water, dust etc. of the oiling agents such as lubricating grease, and on the position of passing through at segmentation and the distribution of shell, used sealed member, sealing parts use the elastomers such as rubber.For example, mostly on the segmentation of shell, use O type ring, and use packing ring on the position of passing through at distribution.Packing ring is clipped between cut apart shell and is fixed, and in order to increase the intimate contact area between packing ring and shell, and makes packing ring longer than the sectional dimension of packing ring, is formed with for spreading all over the assembly department of close contact endlong for whole packing ring on shell.At this, need to support the end of power transmission shaft in the enclosure of gear-box, the shell inner member that is provided with bearing and lug boss need to be arranged on to the inside of shell.The aperture surface of shell inner member and shell is chimeric and install, but in this case, is difficult to the close contact portion of packing ring to guarantee portion in the enclosure, thereby has the problem that causes sealability to reduce.In addition, significantly stretch out to the outside of shell at the assembly department that makes packing ring in order to ensure sealability, guarantee in the situation of intimate contact area, having shell can become large-scale problem.
Model utility content
Problem of the present utility model is to have in the shell of shell inner member in inside, and a kind of shell airtight construction that can not cause maximization and can improve the sealability based on packing ring is provided.Its technological scheme is as described below.
(1) provide a kind of shell airtight construction, formed by shell, lid, shell inner member, O type ring and packing ring, this shell has opening portion, this lid engages with the opening portion of described shell and this opening portion is sealed, this shell inner member engages and enclosure is divided with the internal diameter of described shell, this O type ring is crimped and is installed on the snap-latch surface between described lid and described shell, this packing ring is crimped and is installed in a part for described snap-latch surface, this shell airtight construction is characterised in that
On described lid, be formed with the packing ring assembly department for embedding for described packing ring and the O type ring bearing portion that engages and support O type ring with O type ring, on described shell, be formed with snap-latch surface and the packing ring support of described O type ring, the fixing part that is formed with packing ring support and for described packing ring embeds, described packing ring is located on described shell inner member, on described packing ring, be formed with the projection chimeric with described fixing part
Described projection and the described fixing part of described packing ring are chimeric, and meanwhile, described packing ring is seamlessly clipped between the described packing ring support of described shell and described shell inner member and the described packing ring assembly department of described lid and fixes.
(2) according to the shell airtight construction (1) described, it is characterized in that, described packing ring has the O type annular groove for clamping described O type ring on the embedding part between the described packing ring assembly department of described packing ring and described shell,
A part for the circumferencial direction of described O type ring is seamlessly installed between described packing ring assembly department and described packing ring.
According to technique scheme, even if be provided with in the enclosure in the situation of shell inner member, can not cause shell to maximize yet, the close contact portion of packing ring can be guaranteed to portion in the enclosure, and improve sealability.
Brief description of the drawings
Fig. 1 is the figure that represents the formation of the shell of mode of execution of the present utility model.
Fig. 2 is the figure representing the state after the shell assembling of mode of execution of the present utility model.
Embodiment
Fig. 1 and Fig. 2 represent the formation of shell of the present utility model.In addition,, in order to illustrate, the lid 12 in figure represents in the mode of a part of incised notch.Shell 10 is by housing main body 11, with the chimeric shell inner member 13 in the inside of shell 10, form the lid of the covering of the opening portion of shell 12, packing ring 21 and O type ring 22.
On lid 12, be formed with the packing ring assembly department 12a of the incised notch for packing ring 21 is embedded and the O type ring bearing 12b of portion of supporting O type ring 22.Packing ring assembly department 12a be formed with the outer circumferential face of packing ring in the chimeric surface of three face close contacts.On housing main body 11, be formed with packing ring support 11a, this packing ring support 11a on one side its with above-mentioned packing ring assembly department 12a between compression washer 21 one side supporting beads 21.Shell inner member 13 is chimeric with the internal diameter of housing main body 11, and the space of enclosure is divided.In addition, be formed with the packing ring support 13a of supporting bead 21 on member 13 in the enclosure and engage with packing ring and limit in the longitudinal direction the fixing part 13b of the overshooting shape of packing ring.On packing ring 21, be formed with for making multiple wiring hole 21a that distribution passes and for the multiple projections chimeric with the fixing part 13b of shell inner member 13.In the inside of shell 10, contain element and the not shown electric components such as not shown gear.In the present embodiment, lid 12 is arranged on housing main body 11 by multiple bolts 13.In addition, on housing main body 11, shell inner member 13, be formed with the not shown lug boss that supplies the axle of the power that transmits above-mentioned element to run through.
Fig. 1 is the figure that represents the parts formation of shell 10.Fig. 2 is the figure representing the state after the assembling parts shown in Fig. 1.
As shown in Figure 1 and Figure 2, shell inner member 13 is chimeric with the internal diameter of housing main body 11.The packing ring support 11a of housing main body 11 with the packing ring support 13a of shell inner member 13 so that highly identical mode configure.Packing ring 21 is chimeric with the fixing part 13b of shell inner member 13,, is configured on packing ring support 11a, the 13a of housing main body 11 and shell inner member 13 meanwhile.Under this state, make packing ring assembly department 12a and packing ring 21 chimeric on one side, on one side lid 12 is entrenched on housing main body 11, and by fastening and fixing bolt 14, thereby be assembled into shell 10.
In the embodiment shown in Fig. 1, Fig. 2, in the O type ring bearing 12b of portion, embed and have under the state of O type ring, lid 12 is arranged on housing main body 11.Now, O type ring 22 be clipped in lid 12 the O type ring bearing 12b of portion, and be formed between the groove 21b on packing ring 21, and be deformed into packing ring assembly department 12a aperture surface shape while be crimped.In addition, packing ring 21 is pressed into by the packing ring assembly department 12a to lid 12, meanwhile, and by the packing ring support 11a of housing main body 11 and the packing ring support 13a crimping of shell inner member 13 and fix.O type ring 22 engages with the groove 21a being formed on packing ring 21 on one side, and one side and packing ring 21 1 coexist and be crimped between lid 12, housing main body 11 and shell inner member 13.According to foregoing, because packing ring 21 has sufficient intimate contact area, so can obtain good seal.
In addition, the wiring hole of packing ring 21 also can suitably change quantity and size.In addition, can be also, on housing main body 11, lid 12 and shell inner member 13, be formed with suitably the opening portion for being connected motor and pipe arrangement, power transmission shaft etc.
Claims (2)
1. a shell airtight construction, formed by shell, lid, shell inner member, O type ring and packing ring, this shell has opening portion, this lid engages with the opening portion of described shell and this opening portion is sealed, this shell inner member engages and enclosure is divided with the internal diameter of described shell, and this O type ring is crimped and is installed on the snap-latch surface between described lid and described shell, and this packing ring is crimped and is installed in a part for described snap-latch surface, this shell airtight construction is characterised in that
On described lid, be formed with the packing ring assembly department for embedding for described packing ring and the O type ring bearing portion that engages and support O type ring with O type ring, on described shell, be formed with snap-latch surface and the packing ring support of described O type ring, the fixing part that is formed with packing ring support and for described packing ring embeds, described packing ring is located on described shell inner member, on described packing ring, be formed with the projection chimeric with described fixing part
Described projection and the described fixing part of described packing ring are chimeric, and meanwhile, described packing ring is seamlessly clipped between the described packing ring support of described shell and described shell inner member and the described packing ring assembly department of described lid and fixes.
2. shell airtight construction according to claim 1, it is characterized in that, described packing ring has the O type annular groove for clamping described O type ring on the embedding part between the described packing ring assembly department of described packing ring and described shell, and a part for the circumferencial direction of described O type ring is seamlessly installed between described packing ring assembly department and described packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090623.8U CN203730720U (en) | 2014-02-28 | 2014-02-28 | Casing airtight structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090623.8U CN203730720U (en) | 2014-02-28 | 2014-02-28 | Casing airtight structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730720U true CN203730720U (en) | 2014-07-23 |
Family
ID=51200796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420090623.8U Expired - Fee Related CN203730720U (en) | 2014-02-28 | 2014-02-28 | Casing airtight structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730720U (en) |
-
2014
- 2014-02-28 CN CN201420090623.8U patent/CN203730720U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |