CN219082246U

CN219082246U - Sealing device

Info

Publication number: CN219082246U
Application number: CN202223474586.4U
Authority: CN
Inventors: 台涛; 刘振明; 方少华
Original assignee: SUZHOU GERUNDE MACHINERY MANUFACTURING CO LTD
Current assignee: SUZHOU GERUNDE MACHINERY MANUFACTURING CO LTD
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-05-26
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a sealing device, a sealing cylinder cover is connected to the top of a fixed ring seat, a sealing seat mechanism is arranged in a cavity formed in the middle of the fixed ring seat, the sealing seat mechanism comprises a lower sealing seat and an upper sealing seat, the top of the lower sealing seat is fixedly provided with a wedge ring seat, the bottom of the upper sealing seat is provided with a wedge ring groove matched with the wedge ring seat, the wedge ring seat is inserted and embedded into the wedge ring groove, the sealing device adopts a wedge sealing structure, and the sealing of a central mechanism is completed through the embedded extrusion action between the wedge ring seat and the wedge ring groove.

Description

Sealing device

Technical Field

The utility model relates to the technical field of sealing devices, in particular to a sealing device.

Background

The tire vulcanizer generally adopts a traditional B-type vulcanizer central mechanism, namely, an upper ring lifting device adopts a hydraulic cylinder lifting device controlled by a hydraulic cylinder or an oil cylinder to operate, so that actions such as capsule stretching, shaping, upper ring back pressure control and the like are ensured, and a sealing device is required to be arranged between a central rod and a ring seat of a cylinder body in order to ensure the sealing performance of the cylinder body.

Patent number CN210792173U discloses a vulcanizer central mechanism is from tight sealing device that rises, it is through regard as split type structure with bush, go up clamping ring etc. on the one hand can easy to assemble, on the other hand can install the tight spring that rises in the inside, thereby but the automatic adjustment seal clearance, it is unavailable after the wearing and tearing, can play automatic tight effect that rises, can prolong the life of sealing member, reduce cost of maintenance and equipment maintainer amount of labour, promote the stability of equipment, and through setting up the clamping ring and seal base into matched with longitudinal section and be V-arrangement's structure, can change the shape of combination seal, be wave structure, on the one hand improves sealed effect, on the other hand can realize better sealedly when the tight spring effect that rises after wearing and tearing, it is reliable and stable.

The self-tensioning sealing device of the central mechanism of the vulcanizing machine has the following defects: the device adopts V-shaped section structure to match with the tension spring to finish sealing the ring rod, and although the sealing effect of the sealing part can be improved, the device adopts a spring structure, the structure is complex, the cost is relatively high, the later maintenance cost of the device is greatly increased, and the sealing property of the section contact part can be improved through axial extrusion force by adopting the V-shaped section structure to match with the tension spring, but the sealing property is relatively low due to the fact that the sealing property lacks of the expansion force to the side face of the sealing part.

Disclosure of Invention

The present utility model is directed to a sealing device, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the sealing device comprises an upper ring rod, and a sealing cylinder cover and a sealing seat mechanism which are sleeved on the upper ring rod, wherein a fixed ring seat is arranged outside the upper ring rod, the sealing cylinder cover is connected to the top of the fixed ring seat, and the sealing seat mechanism is arranged in a cavity formed in the middle of the fixed ring seat;

the sealing mechanism comprises a lower sealing seat and an upper sealing seat, wherein the lower sealing seat is connected to the bottom of the upper sealing seat, a wedge-shaped ring seat is fixedly arranged at the top of the lower sealing seat, a wedge-shaped ring groove matched with the wedge-shaped ring seat is formed in the bottom of the upper sealing seat, and the wedge-shaped ring seat is inserted into the wedge-shaped ring groove.

Preferably, a first bolt is arranged in a screw hole formed in the top of the sealing cylinder cover, the sealing cylinder cover is fixedly connected to the top of the fixed ring seat through the first bolt, a ring seat is fixedly arranged at the bottom of the sealing cylinder cover, the ring seat is connected to the inside of a cavity formed in the middle of the fixed ring seat in a jogged mode, and the top of the ring seat is in abutting connection with the bottom of the sealing cylinder cover.

Preferably, an inner sealing seat is arranged in the middle of the upper sealing seat, a third sleeve hole is formed in the middle of the inner sealing seat, and the upper sealing seat is sleeved outside the upper ring rod through the third sleeve hole.

Preferably, a first sleeve hole is formed in the middle of the wedge-shaped ring seat, the inner sealing seat is embedded and connected in the first sleeve hole, a second sleeve hole is formed in the middle of the lower sealing seat, and the lower sealing seat is sleeved on the outer portion of the upper ring rod through the second sleeve hole.

Preferably, the cross sections of the wedge ring seat and the wedge ring groove are wedge-shaped, and the bottom of the lower sealing seat is provided with an arc-shaped groove.

Preferably, a fixing seat is arranged at the bottom of the fixing ring seat, a slotted hole is formed in the top of the fixing seat, the bottom of the fixing ring seat is connected to the inside of the slotted hole, a screw hole is formed in the top of the fixing seat, and a second bolt is connected to the internal thread of the screw hole.

Compared with the prior art, the utility model has the beneficial effects that:

the sealing device adopts a wedge-shaped sealing structure, replaces the sealing structure formed by the matching of the V-shaped section structure and the tension spring in the original device, completes the sealing of the centering mechanism through the embedding extrusion effect between the wedge-shaped ring seat and the wedge-shaped ring groove, and can extrude the inner side of the wedge-shaped ring groove in an upward embedding way under the pushing effect of pressure during working, thereby simultaneously extruding the contact section and the lateral direction of the sealing structure, utilizing the sealing effect of the pressure improving device, and having stronger sealing effect of the device when the pressure is higher, simple and reliable structure and lower manufacturing cost compared with the original device, and having better sealing effect and replacement cost.

Drawings

FIG. 1 is a schematic view of the overall mounting structure of the present utility model;

FIG. 2 is a schematic diagram of the upper side structure of the lower seal seat of the present utility model;

FIG. 3 is a schematic view of the lower side structure of the lower seal seat of the present utility model;

fig. 4 is a schematic structural view of the upper seal seat of the present utility model.

In the figure: 1. sealing the cylinder cover; 2. a seat sealing mechanism; 3. a lower seal seat; 4. an upper seal seat; 5. a wedge-shaped ring seat; 6. a first sleeve hole; 7. a second set of holes; 8. an arc-shaped groove; 9. an inner seal seat; 10. a third set of holes; 11. wedge ring groove; 12. a first bolt; 13. a ring rod is arranged; 14. a fixed ring seat; 15. a fixing seat; 16. and a second bolt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a sealing device, including last ring pole 13 and cover establish the sealed cylinder cap 1 and the seal seat mechanism 2 on last ring pole 13, the outside of going up ring pole 13 is provided with solid fixed ring seat 14, be provided with first bolt 12 in the screw that sealed cylinder cap 1 top was seted up, sealed cylinder cap 1 passes through first bolt 12 fixed connection in the top of solid fixed ring seat 14, the bottom of sealed cylinder cap 1 is fixed and is provided with the ring seat, ring seat gomphosis is connected in the cavity that gu fixed ring seat 14 middle part was seted up inside, the top of ring seat is contradicted and is connected in the bottom of sealed cylinder cap 1, can contradict the bulldoze the top of going up seal seat 4, make the connection between upper seal seat 4 and lower seal seat 3 inseparabler, the bottom of solid fixed ring seat 14 is provided with fixing base 15, the slotted hole has been seted up at the top of fixing base 15, the screw is seted up at the bottom of solid fixed ring seat 14, the internal thread of screw is connected with second bolt 16 for the connection of fixing base 15 is fixed.

The sealing seat mechanism 2 is arranged in a cavity formed in the middle of the fixed ring seat 14, the sealing seat mechanism 2 comprises a lower sealing seat 3 and an upper sealing seat 4, the lower sealing seat 3 is connected to the bottom of the upper sealing seat 4, the top of the lower sealing seat 3 is fixedly provided with a wedge ring seat 5, the bottom of the upper sealing seat 4 is provided with a wedge ring groove 11 matched with the wedge ring seat 5, the cross sections of the wedge ring seat 5 and the wedge ring groove 11 are wedge-shaped, the wedge ring seat 5 is inserted and embedded into the wedge ring groove 11, when in sealing operation, the pressure in the device acts on the bottom of the lower sealing seat 3, under the pushing action of the pressure, the wedge ring seat 5 positioned at the top of the lower sealing seat 3 can upwards extrude the inner side of the wedge ring groove 11 formed in the bottom of the upper sealing seat 4, so that the wedge ring seat 5 is in closer contact with the wedge ring groove 11, and simultaneously under the extrusion action of the wedge ring seat 5, the outer side of the upper sealing seat 4 is expanded, and the contact between the upper sealing seat 4 and the fixed ring seat 14 is closer.

The middle part of going up seal holder 4 is provided with inboard seal holder 9, third trepanning 10 has been seted up at the middle part of inboard seal holder 9, go up seal holder 4 and cup joint in the outside of last ring pole 13 through third trepanning 10, the middle part of wedge ring seat 5 is provided with first trepanning 6, inboard seal holder 9 embedding is connected in the inside of first trepanning 6, the second trepanning 7 has been seted up at the middle part of lower seal holder 3, lower seal holder 3 cup joints in the outside of last ring pole 13 through second trepanning 7, arc wall 8 has been seted up to the bottom of lower seal holder 3, arc wall 8 is the cambered surface form recess, when receiving the atmospheric pressure effect, the promotion effort of multiplicable atmospheric pressure, make the bottom of going up seal holder 4 expand outwards, extrude in the inner chamber surface of solid fixed ring seat 14, make the contact of going up seal holder 4 and solid fixed ring seat 14 more inseparabler.

When the device is used, the lower sealing seat 3 is firstly arranged in the cavity formed in the middle of the fixed ring seat 14, the upper sealing seat 4 is arranged at the top of the lower sealing seat 3, the wedge-shaped ring seat 5 at the top of the lower sealing seat 3 is embedded in the wedge-shaped ring groove 11 formed in the bottom of the upper sealing seat 4, and finally the sealing cylinder cover 1 is fixed at the top of the fixed ring seat 14 through the first bolt 12 and screwed down, so that the device is installed, and the device can be disassembled through unscrewing the first bolt 12.

When the sealing operation is carried out, the pressure in the device acts on the bottom of the lower sealing seat 3, under the pushing action of the pressure, the wedge ring seat 5 positioned at the top of the lower sealing seat 3 can be upwards extruded on the inner side of the wedge ring groove 11 formed in the bottom of the upper sealing seat 4, so that the wedge ring seat 5 is in closer contact with the wedge ring groove 11, simultaneously, under the extrusion action of the wedge ring seat 5, the outer side of the upper sealing seat 4 is expanded and extruded on the inner cavity surface of the fixed ring seat 14, the contact between the upper sealing seat 4 and the fixed ring seat 14 is closer, the sealing operation of the device is completed, the sealing structure of the device is replaced by adopting a wedge sealing structure, the sealing of the central mechanism is completed by the embedding extrusion action between the wedge ring seat 5 and the wedge ring groove 11, the sealing effect of the pressure improving device is utilized, the sealing effect of the device is stronger, the structure is simple and reliable, the manufacturing cost is lower, and the sealing effect and the replacement cost is better compared with the original device.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sealing device, includes last ring pole (13) and cover seal cylinder cap (1) and seat sealing mechanism (2) of establishing on last ring pole (13), its characterized in that: the outer part of the upper ring rod (13) is provided with a fixed ring seat (14), the sealing cylinder cover (1) is connected to the top of the fixed ring seat (14), and the seat sealing mechanism (2) is arranged in a cavity formed in the middle of the fixed ring seat (14);

the sealing seat mechanism (2) comprises a lower sealing seat (3) and an upper sealing seat (4), the lower sealing seat (3) is connected to the bottom of the upper sealing seat (4), a wedge-shaped ring seat (5) is fixedly arranged at the top of the lower sealing seat (3), a wedge-shaped ring groove (11) matched with the wedge-shaped ring seat (5) is formed in the bottom of the upper sealing seat (4), and the wedge-shaped ring seat (5) is inserted and embedded into the wedge-shaped ring groove (11).

2. A sealing device according to claim 1, wherein: the sealing cylinder cover is characterized in that a first bolt (12) is arranged in a screw hole formed in the top of the sealing cylinder cover (1), the sealing cylinder cover (1) is fixedly connected to the top of a fixed ring seat (14) through the first bolt (12), a ring seat is fixedly arranged at the bottom of the sealing cylinder cover (1), the ring seat is embedded and connected into a cavity formed in the middle of the fixed ring seat (14), and the top of the ring seat is in abutting connection with the bottom of the sealing cylinder cover (1).

3. A sealing device according to claim 2, wherein: the middle part of going up seal holder (4) is provided with inboard seat (9), third trepanning (10) have been seted up at the middle part of inboard seat (9), go up seal holder (4) and cup joint in the outside of last ring pole (13) through third trepanning (10).

4. A sealing device according to claim 3, wherein: the middle part of wedge ring seat (5) is provided with first trepanning (6), inboard seat (9) embedding is connected in the inside of first trepanning (6), second trepanning (7) have been seted up at the middle part of lower seal seat (3), lower seal seat (3) cup joint in the outside of last loop bar (13) through second trepanning (7).

5. A sealing device according to claim 4, wherein: the cross sections of the wedge-shaped ring seat (5) and the wedge-shaped ring groove (11) are wedge-shaped, and an arc-shaped groove (8) is formed in the bottom of the lower sealing seat (3).

6. A sealing device according to claim 1, wherein: the bottom of fixed ring seat (14) is provided with fixing base (15), the slotted hole has been seted up at the top of fixing base (15), the bottom of fixed ring seat (14) is connected in the inside of slotted hole, the screw has been seted up at the top of fixing base (15), the inside threaded connection of screw has second bolt (16).