CN210003420U - cylinder cover housing sealing structure - Google Patents
cylinder cover housing sealing structure Download PDFInfo
- Publication number
- CN210003420U CN210003420U CN201920192592.XU CN201920192592U CN210003420U CN 210003420 U CN210003420 U CN 210003420U CN 201920192592 U CN201920192592 U CN 201920192592U CN 210003420 U CN210003420 U CN 210003420U
- Authority
- CN
- China
- Prior art keywords
- housing
- cylinder
- bolt
- cylinder head
- sealing
- 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 discloses an kind cylinder cap housing seal structure, including the cylinder cap, with cylinder cap complex cylinder cap housing to and the cylinder cap housing sealing gasket of setting between cylinder cap and cylinder cap housing, be equipped with the bolt hole on the corresponding position of cylinder cap and cylinder cap housing, the cylinder cap passes through bolted connection with the cylinder cap housing, and is equipped with the slot on the terminal surface of cylinder cap, the cylinder cap housing sealing gasket is including the bolt portion of sealed cylinder cap housing bolt, the sealed piece of sealed slot, and the connecting portion of connecting bolt portion and sealed piece, connecting portion are used for the contact surface between sealed cylinder cap and the cylinder cap housing, the utility model discloses a cylinder cap housing bolt has realized the connection of cylinder cap housing and cylinder cap and the sealed compressing tightly of cylinder cap housing sealing gasket, because the cylinder cap housing sealing gasket is style sealed pad, need not additionally to use the semicircle iron plate to seal up the slot, has reduced part quantity, need not to paint.
Description
Technical Field
The utility model relates to an engine accessories technical field, more specifically say, relate to kinds of cylinder cap housing seal structures.
Background
The cylinder cover housing of the heavy diesel engine has a large sealing area and two semicircular holes, so that the cylinder cover housing cannot be sealed in a plane sealing mode.
In the prior art, a semicircular hole in a cylinder cover is blocked by gluing a semicircular iron block, and then the cylinder cover and a cylinder cover housing are sealed by using a plane sealing mode.
In the prior art, the requirements on the manufacturing precision of the semicircular iron block and the semicircular hole of the cylinder cover are extremely high, and a step can be formed in the semicircular block area, so that sealant needs to be smeared at the step. If the step is too big, the resilience amount of the rubber sealing gasket cannot make up the gap, and finally oil leakage can be caused. In addition, the sealant needs to be cleaned up during secondary disassembly and assembly.
In summary, how to seal the cylinder cover housing and the cylinder cover on the premise of being convenient for disassembly and assembly is a problem to be solved urgently by those skilled in the art at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing kind of cylinder cap housing seal structures, can realize the sealed to the cylinder cap housing under the prerequisite of the dismouting of being convenient for.
In order to achieve the above object, the present invention provides the following technical solutions:
sealing structure of cylinder cover case, comprising cylinder cover, cylinder cover case matching with the cylinder cover, and cylinder cover case sealing pad between the cylinder cover and the cylinder cover case;
the corresponding positions of the cylinder cover and the cylinder cover housing are provided with bolt holes, the cylinder cover and the cylinder cover housing are connected through the cylinder cover housing by bolts, and the end surface of the cylinder cover is provided with a groove;
the cylinder cover housing is sealed to fill up including sealing the bolt portion of cylinder cover housing bolt, sealing the sealed piece of slot, and connect bolt portion with the connecting portion of sealed piece, connecting portion are used for sealing the cylinder cap with contact surface between the cylinder cover housing.
Preferably, a gasket and a cylinder cover housing bolt damping pad are arranged between the cylinder cover housing bolt and the cylinder cover housing.
Preferably, the gasket and the cylinder cover housing bolt damping pad are of a vulcanized body structure.
Preferably, the number of the cylinder cover housing bolts on two sides of the groove is two, the two cylinder cover housing bolts are respectively arranged on two sides of the sealing block, and the distance between the two cylinder cover housing bolts is 105-125 mm.
Preferably, a cylinder cover housing bolt spacer bush used for preventing the cylinder cover housing bolt from loosening is arranged between the outer side wall of the cylinder cover housing bolt and the inner side wall of the bolt hole.
Preferably, around the bolt hole, be provided with cylinder head housing seal groove on the cylinder head housing, the end that is close to the cylinder head housing on the bolt portion is provided with the upper seal lip of cylinder head housing seal groove complex.
Preferably, sealing lip supporting shoulders for supporting the upper sealing lip are arranged on two sides of the upper sealing lip.
Preferably, on the contact surface of the bolt part and the cylinder cover, at least lower sealing lips are arranged on the bolt part.
Preferably, the number of the lower sealing lips is three, and the three lower sealing lips are symmetrically distributed along the axis of the upper sealing lip.
Preferably, around the bolt hole, a limit groove is arranged on the cylinder cover, and the end of the bolt part close to the cylinder cover is provided with a thrust surface matched with the limit groove so as to prevent the axial movement of the sealing block.
The utility model provides a cylinder cap housing seal structure can realize the sealed to the cylinder cap housing under the prerequisite of the dismouting of being convenient for.
The utility model provides a cylinder cover housing sealing structure, which comprises a cylinder cover, a cylinder cover housing matched with the cylinder cover, and a cylinder cover housing sealing gasket arranged between the cylinder cover and the cylinder cover housing; the corresponding positions of the cylinder cover and the cylinder cover housing are provided with bolt holes, the cylinder cover and the cylinder cover housing are connected through bolts, and the end surface of the cylinder cover is provided with a groove; the cylinder cover housing sealing gasket comprises a bolt part for sealing a cylinder cover housing bolt, a sealing block for sealing a groove and a connecting part for connecting the bolt part and the sealing block, wherein the connecting part is used for sealing a contact surface between a cylinder cover and the cylinder cover housing.
The sealed piece can seal up the slot on the cylinder cap terminal surface, bolt portion can seal up cylinder cap housing bolt, connecting portion can seal up the contact surface between cylinder cap and the cylinder cap housing, cylinder cap housing bolted connection cylinder cap and cylinder cap housing, can compress tightly the sealed pad of cylinder cap housing that sets up between the two, therefore the sealed pad of cylinder cap housing can seal up the cylinder cap housing, and simultaneously, the sealed pad of cylinder cap housing is style sealed pad, need not additionally to use the semicircle iron plate to seal up the semicircle orifice, the part quantity has been reduced in the aspect of , in addition, in the aspect of , need not to paint sealed glue, the dismouting of being convenient for, it is convenient to change.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a mounting structure of a specific embodiment of a cylinder head housing seal structure provided by the present invention;
FIG. 2 is a schematic cross-sectional view of a sealing area of the cylinder head housing seal arrangement provided in FIG. 1;
fig. 3 is a schematic cross-sectional view of the cylinder head housing seal structure provided in fig. 1.
In FIGS. 1-3:
the cylinder cover comprises a cylinder cover housing 1, a cylinder cover housing seal groove 11, a cylinder cover 2, a cylinder cover housing seal gasket 3, a bolt part 31, an upper seal surface 311, an upper seal lip 312, a seal lip support shoulder 313, a lower seal lip 314, a thrust surface 315, a seal block 32, a connecting part 33, a cylinder cover housing bolt 4, a gasket 5, a cylinder cover housing bolt damping pad 6 and a cylinder cover housing bolt spacer 7.
Detailed Description
The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of , but not all embodiments.
The utility model discloses a core provides kind cylinder cap housing seal structure, can realize the sealed to the cylinder cap housing under the prerequisite of the dismouting of being convenient for.
Referring to fig. 1 to 3, fig. 1 is a schematic cross-sectional view of a mounting structure of an embodiment of a cylinder head housing sealing structure provided in the present invention; FIG. 2 is a schematic cross-sectional view of a sealing area of the cylinder head housing seal arrangement provided in FIG. 1; fig. 3 is a schematic cross-sectional view of the cylinder head housing seal structure provided in fig. 1.
The utility model provides a cylinder cover housing sealing structure, which comprises a cylinder cover 2, a cylinder cover housing 1 matched with the cylinder cover 2 and a cylinder cover housing sealing gasket 3 arranged between the cylinder cover 2 and the cylinder cover housing 1; bolt holes are arranged at corresponding positions of the cylinder cover 2 and the cylinder cover housing 1, the cylinder cover 2 is connected with the cylinder cover housing 1 through the cylinder cover housing bolts 4, and a groove is arranged on the end surface of the cylinder cover 2; the head cover housing gasket 3 includes a bolt portion 31 for sealing the head cover housing bolt 4, a seal block 32 for sealing the groove, and a connecting portion 33 for connecting the bolt portion 31 and the seal block 32, the connecting portion 33 being for sealing the contact surface between the head cover 2 and the head cover housing 1.
The cylinder head 2 is provided with two grooves, the cross sections of the grooves are mostly semicircular, and the grooves are sealed by a sealing block 32 of the cylinder head housing sealing gasket 3. Compared with a semicircular iron block, the sealing block 32 has larger elastic deformation, and the requirement on the machining precision of the groove on the cylinder cover 2 is reduced; meanwhile, no step is formed at the sealing position, so that the groove and the sealing block 32 do not need to be coated with sealant when sealing is formed, and the disassembly and assembly operations of workers are facilitated.
The cylinder cover 2 is connected with the cylinder cover housing 1 through the cylinder cover housing bolt 4, and the pressing force provided by the cylinder cover housing bolt 4 can compress the cylinder cover housing sealing gasket 3 arranged between the cylinder cover 2 and the cylinder cover housing 1, so that the sealing of the cylinder cover housing sealing gasket 3 to the cylinder cover housing 1 is realized.
The arrangement position of the cylinder cover housing bolt 4 should make the compression amount of the cylinder cover housing sealing gasket 3 on the whole sealing plane as uniform as possible so as to realize better sealing effect.
Preferably, in consideration of the sealing effect, the number of the head housing bolts 4 on both sides of the groove may be set to two, the two head housing bolts 4 are respectively disposed on both sides of the sealing block 32, and the distance between the two head housing bolts 4 may be set between 105mm and 125mm according to the experience of actual production.
Since the arrangement of the cylinder head 2 and the cylinder head housing 1 on both sides of the groove is not symmetrical, it is preferable that the two cylinder head housing bolts 4 are arranged asymmetrically with respect to the groove in order to make the pressing forces about the same in all places on the sealing plane.
The cylinder head cover bolt 4 is sealed by the bolt portion 31, so that the sealing of the area near the cylinder head cover bolt 4 is ensured, and the fuel leakage from the bolt hole is avoided.
In this embodiment, the cylinder head 2 and the cylinder head housing 1 are connected by the cylinder head housing bolt 4, the bolt portion and the sealing block 32 of the cylinder head housing gasket 3 respectively seal the cylinder head bolt 4 and the groove on the end face of the cylinder head 2, other contact surfaces between the cylinder head 2 and the cylinder head housing 1 are sealed by the connecting portion 33, and the cylinder head housing bolt 4 presses the cylinder head housing gasket 3 to form a seal.
Because the sealed pad 3 of cylinder cap housing is the sealed pad of style, has avoided using the semicircle iron plate to seal the semicircle orifice, has reduced part quantity in the aspect of , in addition, in the aspect of , need not to use sealed glue to bond, the workman of being convenient for dismantles and installation operation, and it is convenient to change, has improved production and maintenance efficiency.
In addition to the above embodiment, in order to prevent the head cover housing bolt 4 from loosening and perform vibration damping, a gasket 5 and a head cover housing bolt damping washer 6 may be provided between the head cover housing bolt 4 and the head cover housing 1.
The gasket 5 is used for increasing the contact area between the cylinder cover housing bolt 4 and the cylinder cover housing 1, reducing the pressure on the contact surface and simultaneously playing a role in preventing the cylinder cover housing bolt 4 from loosening.
The cylinder cover housing bolt vibration reduction pad 6 is used for weakening vibration generated to the cylinder cover housing bolt 4 when the buffering diesel engine works, and is arranged below the gasket 5 so as to prevent the cylinder cover housing bolt vibration reduction pad 6 from cracking due to direct contact stress with the cylinder cover housing bolt 4.
Preferably, in order to prolong the service life of the cylinder cover housing bolt damping pad 6, the gasket 5 and the cylinder cover housing bolt damping pad 6 can be vulcanized into an -body structure, the tightening force of the cylinder cover housing bolt 4 is transmitted to the cylinder cover housing bolt damping pad 6 through the gasket 5, and the cracking of the cylinder cover housing bolt damping pad 6 caused by direct stress is avoided.
In addition to the above embodiment, in order to prevent the cylinder head cover bolt 4 from coming loose, a cylinder head cover bolt spacer 7 may be provided between the outer side wall of the cylinder head cover bolt 4 and the inner side wall of the bolt hole.
The cylinder cover housing bolt spacer 7 is arranged between the cylinder cover housing bolt 4 and the bolt hole, and can provide a counterforce for preventing the cylinder cover housing bolt 4 from loosening due to the contact with the cylinder cover housing bolt spacer and the bolt hole. Meanwhile, the two ends of the cylinder cover housing bolt spacer 7 are respectively contacted with the cylinder cover housing bolt damping pad 6 and the bolt part of the cylinder cover housing sealing pad 3, so that the compression amount of the cylinder cover housing bolt damping pad 6 and the cylinder cover housing sealing pad 3 can be controlled, and the sealing effect can be controlled.
On the basis of the above embodiment, in order to realize the sealing between the cylinder head cover 1 and the cylinder head cover sealing gasket 3, around the bolt hole, the cylinder head cover 1 may be provided with the cylinder head cover sealing groove 11, and the end of the bolt portion 31 near the cylinder head cover 1 may be provided with the upper sealing lip 312 engaged with the cylinder head cover sealing groove 11.
The head cover housing seal groove 11 is provided on the lower plane of the head cover housing 1, the upper seal lip 312 is provided on the upper seal surface 311 of the bolt portion 31, and the height of the upper seal lip 312 is slightly larger than the depth of the head cover housing seal groove 11.
The upper sealing lip 312 has a decreasing cross-sectional area from the bottom to the top in contact with the upper sealing surface 311, and is designed with a protrusion at the top.
The specific shape and length of the upper sealing lip 312 and the position of the upper sealing surface 311 are designed according to the actual production requirements.
Preferably, in order to prevent the upper seal lip 312 from being deflected and cracked, seal lip support shoulders 313 for supporting the upper seal lip 312 may be provided at both sides of the upper seal lip 312.
The height of seal lip support shoulder 313 slightly is less than the degree of depth of cylinder cap housing seal groove 11, can prevent because the width of last seal lip 312 is less than the width of cylinder cap housing seal groove 11 when last seal lip 312 contacts with cylinder cap housing seal groove 11 and cooperates, goes up seal lip 312 and takes place the deflection in cylinder cap housing seal groove 11, and the atress direction is not parallel with the axis of last seal lip 312, and then leads to going up seal lip 312 fracture.
In addition to the above-described embodiments, in order to enhance the sealing effect between the head cover housing gasket 3 and the cylinder head 2, the bolt portion 31 may be provided with at least lower seal lips 314 on the contact surface of the bolt portion 31 and the cylinder head 2.
The smaller the distance from the cylinder head 2, the smaller the sectional area of the lower seal lip 314. The lower sealing lip 314 may be trapezoidal, triangular, or other shapes.
The specific shape and height of the lower sealing lip 314 is designed according to actual production requirements.
Preferably, the number of the lower seal lips 314 may be three, and the three lower seal lips 314 are symmetrically distributed about the axis of the upper seal lip 312.
In addition to the above embodiments, in order to prevent the axial play of the sealing block 32, a limiting groove may be provided on the cylinder head 2 around the bolt hole, and the end of the bolt portion 31 near the cylinder head 2 may be provided with a thrust surface 315 engaged with the limiting groove.
The limiting groove can be clamped in the two thrust surfaces 315 of the bolt part 31, so that the thrust surfaces 315 cannot move relative to the limiting groove, and the sealing block 32 and the bolt part 31 are bodies, so that axial movement of the sealing block 32 and possible dislocation of the upper sealing lip 312 and the lower sealing lip 314 are avoided, and the sealing performance of the cylinder cover housing sealing gasket 3 is effectively guaranteed.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a cylinder cap housing seal structure has carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
- The cylinder cover housing sealing structure is characterized by comprising a cylinder cover (2), a cylinder cover housing (1) matched with the cylinder cover (2), and a cylinder cover housing sealing gasket (3) arranged between the cylinder cover (2) and the cylinder cover housing (1);bolt holes are arranged at the corresponding positions of the cylinder cover (2) and the cylinder cover housing (1), the cylinder cover (2) and the cylinder cover housing (1) are connected through cylinder cover housing bolts (4), and a groove is arranged on the end face of the cylinder cover (2);the cylinder cover housing sealing gasket (3) comprises a bolt portion (31) for sealing a cylinder cover housing bolt (4), a sealing block (32) for sealing a groove, and a connecting portion (33) for connecting the bolt portion (31) with the sealing block (32), wherein the connecting portion (33) is used for sealing a contact surface between the cylinder cover (2) and the cylinder cover housing (1).
- 2. The cylinder head housing seal structure according to claim 1, characterized in that a gasket (5) and a cylinder head housing bolt damping pad (6) are provided between the cylinder head housing bolt (4) and the cylinder head housing (1).
- 3. The cylinder head housing seal structure according to claim 2, characterized in that the gasket (5) and the cylinder head housing bolt damping pad (6) are vulcanized body structures.
- 4. The cylinder head housing seal structure according to claim 3, characterized in that a cylinder head housing bolt spacer (7) for preventing the cylinder head housing bolt (4) from coming loose is provided between an outer side wall of the cylinder head housing bolt (4) and an inner side wall of the bolt hole.
- 5. The cylinder head cover sealing structure according to claim 4, wherein the number of the cylinder head cover bolts (4) on both sides of the groove is two, the two cylinder head cover bolts (4) are respectively disposed on both sides of the seal block (32), and the distance between the two cylinder head cover bolts (4) is 105-125 mm.
- 6. The cylinder head cover housing sealing structure according to claim 5, wherein a cylinder head housing sealing groove (11) is provided on the cylinder head housing (1) around the bolt hole, and an upper sealing lip (312) that engages with the cylinder head housing sealing groove (11) is provided on the bolt portion (31) near the end of the cylinder head housing (1).
- 7. The head cover housing seal structure according to claim 6, wherein a seal lip support shoulder (313) for supporting the upper seal lip (312) is provided on both sides of the upper seal lip (312).
- 8. The head cover housing seal structure according to claim 7, characterized in that at least lower seal lips (314) are provided on the bolt portion (31) on the contact surface of the bolt portion (31) with the cylinder head (2).
- 9. The head cover housing seal structure according to claim 8, characterized in that the number of said lower seal lips (314) is three, and three of said lower seal lips (314) are symmetrically distributed along an axis of said upper seal lip (312).
- 10. Cylinder head housing sealing arrangement according to any of claims 1-9, characterized in that a limiting groove is provided on the cylinder head (2) around the bolt hole, and the bolt portion (31) is provided with a thrust surface (315) near the end of the cylinder head (2) cooperating with the limiting groove in order to prevent axial play of the sealing block (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920192592.XU CN210003420U (en) | 2019-02-12 | 2019-02-12 | cylinder cover housing sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920192592.XU CN210003420U (en) | 2019-02-12 | 2019-02-12 | cylinder cover housing sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210003420U true CN210003420U (en) | 2020-01-31 |
Family
ID=69300230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920192592.XU Active CN210003420U (en) | 2019-02-12 | 2019-02-12 | cylinder cover housing sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210003420U (en) |
-
2019
- 2019-02-12 CN CN201920192592.XU patent/CN210003420U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102639909B (en) | Sealing and sealing configuration | |
| CN201853990U (en) | Dense busway | |
| CN210003420U (en) | cylinder cover housing sealing structure | |
| CN109538373A (en) | A kind of cylinder cover enclosure sealing structure | |
| CN201757175U (en) | Tapered piece ring sealing device | |
| CN214368338U (en) | High-pressure oil pipe joint with good sealing performance | |
| CN202468120U (en) | Fuel injector gasket | |
| CN213711467U (en) | Heavy pressure type pneumatic cylinder that corrosion resistance is high | |
| CN215060259U (en) | Comb tooth type combined sealing precision flange | |
| CN210890457U (en) | Novel seal wire aligning assembly | |
| CN215927627U (en) | Fuel injector compact heap and engine | |
| CN220310731U (en) | Sealing structure for spraying equipment | |
| CN217572709U (en) | Convenient mounting structure of pump body oil blanket | |
| CN205190198U (en) | Compact pump body structure that can maintain fast | |
| CN217898325U (en) | Stability gland of proportional servo valve installation usefulness | |
| CN218939877U (en) | Sealing member and battery pack | |
| CN217055405U (en) | Cylinder head gasket and engine | |
| CN216882606U (en) | Self-adaptive pressure head for multi-point equal force application of press fitting and plugging | |
| CN204984561U (en) | Catalyst converter is connected with booster and is used conjugative component | |
| CN213954340U (en) | Rubber sealing element for piston | |
| CN212642833U (en) | Cover body structure of vehicle engine oil filling port | |
| CN217440519U (en) | Wear-resisting high strength copper packing ring | |
| CN216279479U (en) | Novel shearing valve | |
| CN219411279U (en) | Novel steel construction connection mounting structure | |
| CN214789379U (en) | Sealing stuffing box with multiple sealing structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |