CN212509529U - Sealing device for coal mine tunneling equipment - Google Patents
Sealing device for coal mine tunneling equipment Download PDFInfo
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- CN212509529U CN212509529U CN202020485670.8U CN202020485670U CN212509529U CN 212509529 U CN212509529 U CN 212509529U CN 202020485670 U CN202020485670 U CN 202020485670U CN 212509529 U CN212509529 U CN 212509529U
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Abstract
The utility model discloses a sealing device for coal mine tunneling equipment, which belongs to the technical field of sealing devices and comprises a floating ring A, wherein the inner side wall of the floating ring A is provided with an arc-shaped groove, the inner side wall of the arc-shaped groove is connected with a sealing ring A, the outer side wall of the floating ring A is connected with a chamfer, the outer side wall of the floating ring A is connected with a floating ring B, the sealing ring of the sealing device adopts a supporting inner ring made of metal material as an inner lining, nitrile rubber is coated on the outer layer, supporting teeth are welded on the surface of the supporting inner ring, the supporting teeth enable the sealing ring and the floating ring to be more closely connected, namely, the sealing performance of the sealing ring is increased, the structural strength of the sealing ring is increased, the service life of the sealing ring is prolonged, the groove of the inner side wall of the floating ring of the sealing device is arc-shaped, the corners of the, the wear resistance of the floating ring is improved, and the service life of the floating ring is prolonged.
Description
Technical Field
The utility model relates to a sealing device technical field especially relates to a colliery is sealing device for heading equipment.
Background
As is known, coal mine tunneling equipment not only needs to operate in environments with high particle pollution and high dust pollution, but also is not suitable for dismounting and replacing a floating oil seal for many times, so that the coal mine tunneling equipment needs to be provided with a shaft end sealing device; at present, most of existing coal mine tunneling equipment adopts a floating oil seal as a sealing device for sealing, and each set of sealing device is only provided with a pair of floating oil seals, namely the floating oil seal consisting of a moving ring and a static ring; when a floating oil seal in the sealing device is damaged, pollutants in the operating environment can enter the main bearing and abrade the main bearing, so that the phenomena of abnormal sound or heat productivity increase and the like of equipment can be caused, abrasion of the main bearing can be accelerated, and the service life of the main bearing is shortened; in addition, when abnormal sound or heat productivity of the equipment is increased, the equipment needs to be shut down and overhauled to remove the damaged floating oil seal and replace a new floating oil seal, so that important equipment or special equipment needing to limit the shutdown times often brings huge economic loss to a user due to the shut down and overhauled condition when the equipment meets the complaint condition.
The patent number CN 104197021B discloses a sealing device applied to coal mine heading equipment, put the adoption with two pairs or two pairs of above floating oil seal nests the mode of establishing ties and using together to effectual floating oil seal's that has improved sealed effect has reduced the probability that the pollutant enters into the main bearing inside, and then correspondingly has reached and has reduced the main bearing degree of wear, extension main bearing life's purpose, simultaneously, owing to can also effectual reduction lead to the equipment to shut down the number of times of overhaul because of changing floating oil seal, consequently, sealing device be particularly useful for the equipment of restriction shut down number of times.
The sealing device for coal mine heading equipment disclosed in the above patent has the following disadvantages: 1. the sealing device for the coal mine tunneling equipment disclosed in the patent uses a nitrile rubber O-shaped ring as a sealing ring, the rubber is soft and non-wear-resistant, the service life is long, the sealing device is easy to wear or age and break, and the service life is short; 2. the floating ring of the sealing device for the coal mine tunneling equipment disclosed in the patent is easily washed and eroded by media, so that the floating ring is corroded and rusted, and particularly, the service life of the floating ring is short at corners; therefore, a sealing device for coal mine tunneling equipment is provided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sealing device for coal mine tunneling equipment, the sealing ring of the sealing device of the utility model adopts a supporting inner ring made of metal material as an inner lining, the nitrile rubber is coated on the outer layer, the surface of the supporting inner ring is welded with supporting teeth, the supporting teeth enable the sealing ring and a floating ring to be connected more tightly, the sealing performance of sealing washer has been increased promptly, has increased the structural strength of sealing washer again, has increased the life of sealing washer, the utility model discloses the groove of sealing device's floating ring inside wall is the arc, and the design of radius angle has all been done at the angle of lateral wall, makes the floating ring more stand wear and tear, and the surface spraying of floating ring has polytetrafluoroethylene anti-corrosion coating, and polytetrafluoroethylene has good chemical stability, corrosion resistance, leakproofness, high lubrication non-adhesion, electrical insulation and good ageing resistance, increases the wear resistance of floating ring, increases the life of floating ring.
The utility model provides a specific technical scheme as follows:
the utility model provides a pair of sealing device for coal mine tunnelling equipment, including floating ring A, the arc wall has been seted up to floating ring A inside wall, the arc wall inside wall is connected with sealing washer A, floating ring A lateral wall is connected with the chamfer, floating ring A lateral wall is connected with floating ring B, the arc wall and the sealing washer B of floating ring B inside wall are connected, floating ring A and floating ring B surface all spray have anti-corrosion coating, sealing washer A includes the rubber layer, supports inner circle and supports the tooth, the inside grafting of rubber layer has the support inner circle, it has the support tooth to support inner circle skin weld.
Optionally, the floating ring a and the floating ring B are made of iron alloy materials.
Optionally, the support inner ring and the support teeth are made of metal materials.
Optionally, the corrosion-resistant coating is polytetrafluoroethylene powder.
Optionally, the sealing ring a and the sealing ring B are made of nitrile rubber and are O-shaped.
The utility model has the advantages as follows:
the embodiment of the utility model provides a sealing device for colliery tunnelling equipment:
1. the utility model discloses sealing device's sealing washer adopts the support inner circle of metal material as the inside lining, the butadiene-acrylonitrile rubber cladding is outer, support inner circle skin weld has a support tooth, it makes to be connected more closely between sealing washer and the floating ring to support the tooth, the sealing performance of sealing washer has been increased promptly, the structural strength of sealing washer has been increased again, the life of sealing washer has been increased, solve the long life of the sealing washer of the colliery sealing device for the tunnelling equipment that publishes in the above-mentioned patent easy by wearing and tearing or ageing rupture, the short problem of life.
2. The utility model discloses the groove of sealing device's floating ring inside wall is the arc, the design of radius angle has all been done at the angle of lateral wall, it is more stand wear and tear to make the floating ring, floating ring surface coating has polytetrafluoroethylene anti-corrosion coating, polytetrafluoroethylene has good chemical stability, corrosion resistance, leakproofness, high lubrication non-adhesion, electrical insulation and good ageing resistance, increase the wear resistance of floating ring, increase the life of floating ring, the floating ring of solving the colliery for the tunnelling equipment sealing device that publishes in the above-mentioned patent is easily washed by the medium, corrode, lead to the rusty problem of floating ring corrosion.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of a sealing device for coal mine tunneling equipment according to an embodiment of the present invention;
fig. 2 is the utility model discloses a structural schematic of the sealing washer of colliery sealing device for tunnelling equipment of embodiment.
In the figure: 1. a sealing ring A; 101. a rubber layer; 102. supporting the inner ring; 103. supporting the teeth; 2. a floating ring A; 3. chamfering; 4. a floating ring B; 5. a seal ring B; 6. an anti-corrosion coating; 7. an arc-shaped groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
A sealing device for a coal mine excavation device according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 2.
Referring to fig. 1 and 2, the embodiment of the utility model provides a sealing device for coal mine tunnelling equipment, including floating ring A2, arc 7 has been seted up to floating ring A2 inside wall, arc 7 inside wall and sealing washer A1 are connected, floating ring A2 lateral wall is connected with chamfer 3, floating ring A2 lateral wall is connected with floating ring B4, the arc 7 and the sealing washer B5 of floating ring B4 inside wall are connected, floating ring A2 and floating ring B4 surface all have sprayed anti-corrosion coating 6, sealing washer A1 includes rubber layer 101, support inner circle 102 and support tooth 103, rubber layer 101 is inside to be pegged graft and is had support inner circle 102, support inner circle 102 skin weld has support tooth 103.
The sealing ring of the sealing device is characterized in that a supporting inner ring 102 made of a metal material is used as an inner lining, the butadiene-acrylonitrile rubber is coated on the outer layer, supporting teeth 103 are welded on the surface of the supporting inner ring 102, the supporting teeth 103 enable the sealing ring and the floating ring to be connected more tightly, namely, the sealing performance of the sealing ring is improved, the structural strength of the sealing ring is improved, the service life of the sealing ring is prolonged, a groove in the inner side wall of the floating ring of the sealing device is arc-shaped, corners of the outer side wall are rounded, the floating ring is more wear-resistant, a polytetrafluoroethylene anti-corrosion coating 6 is sprayed on the surface of the floating ring, polytetrafluoroethylene has excellent chemical stability, corrosion resistance, sealing performance, high lubrication non-adhesion performance, electrical insulation performance and good ageing resistance, the wear resistance of the floating ring is improved, and the service life.
Referring to fig. 1, the floating rings a2 and B4 are made of iron alloy material.
In an example, the floating ring A2 and the floating ring B4 are made of iron alloy materials, and the iron alloy materials have good wear resistance and corrosion resistance.
Referring to fig. 2, the support inner ring 102 and the support teeth 103 are made of a metal material.
Illustratively, the support inner ring 102 and the support teeth 103 are made of metal materials and have high hardness.
Referring to fig. 1, the corrosion protection coating 6 is polytetrafluoroethylene powder.
Illustratively, the corrosion-resistant coating 6 is polytetrafluoroethylene powder, which has excellent chemical stability, corrosion resistance, sealability, high lubrication non-tackiness, electrical insulation properties, and good aging resistance.
Referring to fig. 1, the sealing ring a1 and the sealing ring B5 are both made of nitrile rubber and have an O-shape.
In an example, the sealing ring A1 and the sealing ring B5 are made of nitrile rubber and are O-shaped, and the nitrile rubber is mainly produced by a low-temperature emulsion polymerization method, so that the oil resistance is excellent, the wear resistance is high, the heat resistance is high, and the bonding force is strong.
When the sealing device is used, the floating ring A2 and the floating ring B4 generate pressing force on the sealing end face of the floating ring by means of deformation of the O-shaped sealing ring after being axially compressed, the elastic energy stored by the O-shaped sealing ring is gradually released along with uniform abrasion of the sealing end face, so that the sealing device has an axial compensation effect, the sealing surface can be well attached within a set time, meanwhile, the sealing ring of the sealing device adopts a supporting inner ring 102 made of a metal material as an inner lining, supporting teeth 103 are welded on the surface of the supporting inner ring 102, the supporting teeth 103 enable the sealing ring and the floating ring to be connected more tightly, the sealing performance of the sealing ring is improved, the structural strength of the sealing ring is also improved, a groove on the inner side wall of the floating ring of the sealing device is arc-shaped, corners of the outer side wall are both designed to be chamfered, so that the floating ring is more wear-resistant, a polytetrafluoroethylene anti-corrosion coating 6 is sprayed, Corrosion resistance, sealing performance, high lubrication non-stick performance, electrical insulation performance and good anti-aging endurance, increases the wear resistance of the floating ring, and prolongs the service life of the floating ring.
The utility model relates to a sealing device for coal mine tunneling equipment, which comprises a sealing ring 1 and a sealing ring A; 101. a rubber layer; 102. supporting the inner ring; 103. supporting the teeth; 2. a floating ring A; 3. chamfering; 4. A floating ring B; 5. a seal ring B; 6. an anti-corrosion coating; 7. the arc-shaped slots, the components are all universal standard parts or components known to those skilled in the art, the structure and the principle of which are known to those skilled in the art through technical manuals or through routine experimentation.
It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. The utility model provides a sealing device for coal mine tunnelling equipment, includes and floats ring A (2), its characterized in that, it has seted up arc wall (7) to float ring A (2) inside wall, arc wall (7) inside wall is connected with sealing washer A (1), it is connected with chamfer (3) to float ring A (2) lateral wall, it is connected with floats ring B (4) to float ring A (2) lateral wall, arc wall (7) and sealing washer B (5) of float ring B (4) inside wall are connected, it has anticorrosive coating (6) all to spray on float ring A (2) and float ring B (4) surface, sealing washer A (1) includes rubber layer (101), supports inner circle (102) and supports tooth (103), inside grafting in rubber layer (101) has supported inner circle (102), support inner circle (102) skin weld has support tooth (103).
2. The sealing device for the coal mine tunneling equipment according to claim 1, wherein the floating ring A (2) and the floating ring B (4) are made of iron alloy materials.
3. A sealing device for coal mine tunnelling equipment as claimed in claim 1, wherein the inner support ring (102) and the support teeth (103) are made of a metallic material.
4. A sealing arrangement for a coal mine tunnelling device as claimed in claim 1, in which the corrosion protection coating (6) is polytetrafluoroethylene powder.
5. The sealing device for the coal mine tunneling equipment according to claim 1, wherein the sealing ring A (1) and the sealing ring B (5) are both made of nitrile rubber and are O-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020485670.8U CN212509529U (en) | 2020-04-07 | 2020-04-07 | Sealing device for coal mine tunneling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020485670.8U CN212509529U (en) | 2020-04-07 | 2020-04-07 | Sealing device for coal mine tunneling equipment |
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| CN212509529U true CN212509529U (en) | 2021-02-09 |
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| CN202020485670.8U Active CN212509529U (en) | 2020-04-07 | 2020-04-07 | Sealing device for coal mine tunneling equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115596390A (en) * | 2021-07-07 | 2023-01-13 | 中国石油天然气股份有限公司（Cn） | Sealing device |
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2020
- 2020-04-07 CN CN202020485670.8U patent/CN212509529U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115596390A (en) * | 2021-07-07 | 2023-01-13 | 中国石油天然气股份有限公司（Cn） | Sealing device |
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