CN211398513U - Sealing connection structure between casing and end cover - Google Patents
Sealing connection structure between casing and end cover Download PDFInfo
- Publication number
- CN211398513U CN211398513U CN202020044800.4U CN202020044800U CN211398513U CN 211398513 U CN211398513 U CN 211398513U CN 202020044800 U CN202020044800 U CN 202020044800U CN 211398513 U CN211398513 U CN 211398513U
- Authority
- CN
- China
- Prior art keywords
- bolt
- end cover
- wall
- fixing hole
- casing
- 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.)
- Active
Links
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model aims at providing a can realize sealed and be convenient for sealed connection structure between casing and end cover of follow-up maintenance of bolt department. In order to achieve the above purpose, the utility model adopts the following technical scheme: a sealed connection structure between a machine shell and an end cover is characterized in that a first fixing hole penetrates through the machine shell from inside to outside, a second fixing hole is formed in the side wall of the end cover, the machine shell is fixed with the end cover through a bolt, so that the bolt is inserted and matched in the first fixing hole and the second fixing hole, the bolt is a countersunk bolt, a first sealing ring is sleeved on the bolt, and a sunken groove matched with the head of the bolt is formed in the machine shell; the bolt comprises a head portion, a matching portion and a fixing portion in sequence from outside to inside along an axis, a thread structure matched with each other is formed on the wall of the second fixing hole and the outer wall of the fixing portion, a step structure is formed between the head portion and the matching portion, and the casing, the end cover and the bolt are fixed to enable the first sealing ring to be in contact with the axial face of the sink groove wall, the outer wall of the matching portion and the head portion.
Description
Technical Field
The utility model relates to a sealing connection structure between casing and end cover.
Background
The shell and the end cover of the speed reducer or the motor are locked and fixed by bolts, and in order to avoid leakage of lubricating oil from the bolts, the bolts are sealed by adopting a glue filling mode. However, the subsequent speed reducer or motor needs to be maintained internally, and due to the glue filling, the bolt is difficult to take out so as to realize the disassembly between the shell and the end cover.
Disclosure of Invention
The utility model aims at providing a can realize sealed and be convenient for sealed connection structure between casing and end cover of follow-up maintenance of bolt department.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a sealed connection structure between a machine shell and an end cover is characterized in that a first fixing hole penetrates through the machine shell from inside to outside, a second fixing hole is formed in the side wall of the end cover, the machine shell is fixed with the end cover through a bolt, so that the bolt is inserted and matched in the first fixing hole and the second fixing hole, the bolt is a countersunk bolt, a first sealing ring is sleeved on the bolt, and a sunken groove matched with the head of the bolt is formed in the machine shell; the bolt comprises a head portion, a matching portion and a fixing portion in sequence from outside to inside along an axis, a thread structure matched with each other is formed on the wall of the second fixing hole and the outer wall of the fixing portion, a step structure is formed between the head portion and the matching portion, and the casing, the end cover and the bolt are fixed to enable the first sealing ring to be in contact with the axial face of the sink groove wall, the outer wall of the matching portion and the head portion.
The utility model discloses a first sealing washer is established to the cover on the bolt to realize the sealed between casing and end cover junction, through setting up the cooperation portion, need not set up the external screw thread structure in the cooperation portion, so that area of contact between first sealing washer and bolt is bigger, in order to guarantee sealed effect. The setting of cooperation portion can also avoid first sealing washer by the fish tail of external screw thread structure. Wherein, the utility model discloses an adopt countersunk head bolt's mode to make first sealing washer can be located heavy inslot, so that first sealing washer is hidden, in order to avoid first sealing washer impaired. The utility model discloses a bolt department does not have the encapsulating, does not influence the bolt in follow-up dismantlement when maintaining.
Preferably, the outer diameter of the fitting portion gradually increases from the inside to the outside. The contact area between the first sealing ring and the bolt is increased by the arrangement, so that the sealing effect of the bolt is ensured.
Preferably, the inner diameter of the sinking groove is gradually reduced from outside to inside, so that one end of the circumferential inner wall of the sinking groove is connected with the circumferential inner wall of the first fixing hole. The contact area between the first sealing ring and the wall of the sink groove is increased by the arrangement, so that the sealing effect of the bolt is ensured. The contact area between the first sealing ring and the bolt is increased by the arrangement, so that the sealing effect of the bolt is ensured.
Preferably, the inner diameter of the first seal ring is gradually reduced from the outside to the inside.
Preferably, the outer diameter of the first sealing ring is gradually reduced from outside to inside. The contact area between the first sealing ring and the wall of the sink groove is increased by the arrangement, so that the sealing effect of the bolt is ensured.
Preferably, the end cover axial end extends to the circumferential outer side to form an annular outer boss, an annular sealing groove is formed in the axial surface of the outer boss or the axial surface of the casing along the radial section of the end cover, and a second sealing ring is matched in the sealing groove.
The utility model has the advantages of can realize that bolt department is sealed and the follow-up bolt of being convenient for is dismantled and is maintained.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of fig. 1 at a.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments.
As shown in fig. 1 and 2, in the sealing connection structure between the casing and the end cover of the present invention, a first fixing hole is formed inside and outside the casing 1, a second fixing hole is formed on a side wall of the end cover 2, the casing 1 is fixed to the end cover 2 through a bolt 3, so that the bolt 3 is inserted into the first fixing hole and the second fixing hole, the bolt 3 is a countersunk bolt, a first sealing ring 4 is sleeved on the bolt 3, and a countersunk groove 11 matched with a head 31 of the bolt 3 is formed on the casing 1; bolt 3 includes head 31, cooperation portion 32 and fixed part 33 in proper order from outside to inside along the bolt axis, and second fixed orifices pore wall and fixed part 32 outer wall are formed with the helicitic texture of mutually supporting, constitute the stair structure between head 31 and cooperation portion 32, and casing 1, end cover 2 and bolt 3 three are fixed so that first sealing washer 4 contacts with 11 cell walls of heavy groove, cooperation portion 32 outer wall and the 31 axial planes of head.
Wherein, the outer diameter of the matching part 32 is gradually increased from inside to outside, and the inner diameter of the sink groove 11 is gradually reduced from outside to inside, so that one end of the circumferential inner wall of the sink groove 11 is connected with the circumferential inner wall of the first fixing hole.
Wherein, the inside diameter of the first sealing ring 4 is gradually reduced from outside to inside, and the outside diameter of the first sealing ring 4 is gradually reduced from outside to inside.
The axial end of the end cover 2 extends to the circumferential outer side to form an annular outer boss 21, an annular sealing groove is formed in the axial face of the outer boss 21 along the radial section of the end cover, and a second sealing ring 5 is matched in the sealing groove.
The utility model has the advantages of can realize that bolt department is sealed and the follow-up bolt of being convenient for is dismantled and is maintained.
Claims (6)
1. A sealed connection structure between a machine shell and an end cover is characterized in that a first fixing hole penetrates through the machine shell from inside to outside, a second fixing hole is formed in the side wall of the end cover, the machine shell is fixed with the end cover through a bolt, so that the bolt is inserted into the first fixing hole and the second fixing hole, the bolt is a countersunk bolt, a first sealing ring is sleeved on the bolt, and a sunken groove matched with the head of the bolt is formed in the machine shell; the bolt comprises a head portion, a matching portion and a fixing portion in sequence from outside to inside along an axis, a thread structure matched with each other is formed on the wall of the second fixing hole and the outer wall of the fixing portion, a step structure is formed between the head portion and the matching portion, and the casing, the end cover and the bolt are fixed to enable the first sealing ring to be in contact with the axial face of the sink groove wall, the outer wall of the matching portion and the head portion.
2. The sealing and connecting structure between a casing and an end cover according to claim 1, wherein the outer diameter of the engaging portion is gradually increased from inside to outside.
3. The sealing structure of claim 1, wherein the inner diameter of the sinking groove is gradually reduced from outside to inside, so that one end of the circumferential inner wall of the sinking groove is connected to the circumferential inner wall of the first fixing hole.
4. The sealing and connecting structure between a casing and an end cover according to claim 2, wherein the inner diameter of the first sealing ring is gradually reduced from outside to inside.
5. The sealing and connecting structure between a casing and an end cover according to claim 3, wherein the outer diameter of the first sealing ring is gradually reduced from outside to inside.
6. The structure according to claim 1, wherein the end cap extends outward in the circumferential direction to form an annular outer boss, a sealing groove having an annular shape along a radial cross section of the end cap is formed on an axial surface of the outer boss or an axial surface of the casing, and a second sealing ring is fitted in the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020044800.4U CN211398513U (en) | 2020-01-10 | 2020-01-10 | Sealing connection structure between casing and end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020044800.4U CN211398513U (en) | 2020-01-10 | 2020-01-10 | Sealing connection structure between casing and end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211398513U true CN211398513U (en) | 2020-09-01 |
Family
ID=72213171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020044800.4U Active CN211398513U (en) | 2020-01-10 | 2020-01-10 | Sealing connection structure between casing and end cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211398513U (en) |
-
2020
- 2020-01-10 CN CN202020044800.4U patent/CN211398513U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211398513U (en) | Sealing connection structure between casing and end cover | |
| CN213063779U (en) | Combined oil seal for spark plug and oil injector pipe | |
| CN211405694U (en) | Outer rotor electric machine rotor waterproof construction | |
| CN213800137U (en) | Electric propulsion archaize sightseeing boat shafting sealing system | |
| CN211624805U (en) | Electromagnetic motor with bearing inner cup lubricating arrangement | |
| CN214499569U (en) | Positioning structure of radial guide vane and pump body | |
| CN206477951U (en) | A kind of hydraulic motor with inner curved piston through hole device | |
| CN209881536U (en) | Sealing structure of brake end of special gear motor for stereo garage | |
| CN217107456U (en) | Water pump front cover structure | |
| CN218416012U (en) | Sealing structure for motor casing | |
| CN205212620U (en) | Sealing member of motor shaft through wires hole | |
| CN215419536U (en) | Cable sealing connection structure for water pump | |
| CN219659505U (en) | Motor sealing waterproof device of underwater robot | |
| CN203822949U (en) | Underwater reduction gearbox | |
| CN204145159U (en) | Electric motor end cap and motor, booster pump | |
| CN201521644U (en) | Highly eccentric oil seal | |
| CN220415665U (en) | Plunger pump water seal and plunger pump | |
| CN214838259U (en) | Output flange of speed reducer | |
| CN214008051U (en) | Sealing matching structure of steering engine shell and end cover | |
| CN220828504U (en) | Main reducer casing assembly that suitability is good | |
| CN209986252U (en) | Hydraulic expansion mandrel | |
| CN218390149U (en) | Shoulder sleeve type perfume bottle | |
| CN208299580U (en) | A kind of and drive end bearing bracket and water channel integral machine shell structure | |
| CN215929181U (en) | A oiling device for direction post steel bowl | |
| CN212429203U (en) | Slurry pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ZHEJIANG LINIX MOTOR Co.,Ltd. Assignor: HENGDIAN GROUP INNUOVO ELECTRIC Co.,Ltd. Contract record no.: X2023330000553 Denomination of utility model: Sealing connection structure between casing and end cover Granted publication date: 20200901 License type: Common License Record date: 20230822 |