A long glass fiber reinforced rubber skeleton type sealing ring structure

Abstract

The present invention discloses a long glass fiber reinforced rubber skeleton type sealing structure, which includes a supporting skeleton, a rubber waist, a rubber lip and a spring sheet. The supporting skeleton is used to install and support a sealing ring. The rubber waist is connected to the bottom of the supporting skeleton, and the rubber waist extends upward obliquely to form a space structure with a V-shaped cross section between the supporting skeleton. The rubber lip is located at the end of the rubber waist, which is used for interference fit with the rotating shaft. The spring sheet has a V-shaped cross section and is arranged in the V-shaped space. The spring sheet is fixed to the supporting skeleton and the rubber waist through the skeleton spring fixing ribs and the waist spring fixing ribs. The present invention has good flexibility and stability as a whole. The spring sheet gives the rubber lip a radial elastic force to ensure the sealing effect of the product, and the spring fixing ribs ensure that the spring sheet is attached to the rubber skeleton and the rubber waist to prevent the spring from falling off.

Description

Technical Field

[0001] The invention belongs to the field of bearing sealing rings, and in particular relates to a long glass fiber reinforced skeleton sealing structure. Background Art

[0002] As a clean and pollution-free renewable energy, wind energy has been valued by countries around the world. The wind resources available for power generation on the earth are about 10 billion kilowatts, which is 10 times the amount of hydropower generation in the world. The energy of coal combustion in the world each year provides 1 / 3 of the energy provided by wind power. The global new energy strategy focuses on the development of wind power and new energy. Wind turbines are the necessary devices to convert wind energy into electrical energy. Wind turbines are affected by complex working conditions such as different wind speeds, wind directions, rain, dust, ultraviolet rays, and ozone environments, which put forward strict requirements for the use of sealing rings used in the units. As an important component of wind turbines, the sealing ring is usually composed of three parts: a dipped cotton cloth skeleton layer, a rubber lip and a spring sheet. The dipped cotton cloth serves as a supporting skeleton layer, which plays a role in supporting and fixing the sealing ring in the installation groove. The rubber lip is interference-fitted with the wind turbine rotating main shaft to play a sealing role. The spring sheet is bonded to the rubber skeleton layer and the lip glue through an adhesive to play a role in supplementing the elastic sealing force. In practical applications, the dipped cotton cloth skeleton has the disadvantages of high rigidity, insufficient flexibility, and unstable size. The spring sheet has the risk of peeling and falling off from the rubber. Therefore, developing a spring with good flexibility, stable dimensions and no peeling or falling off is crucial for the long-term stable operation of wind turbines. Summary of the invention

[0003] The object of the present invention is to provide a long glass fiber reinforced rubber skeleton type sealing ring structure, which has good flexibility and stable dimensions and ensures that the spring sheet and the rubber do not peel off.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a long glass fiber reinforced rubber skeleton type sealing structure, which includes a supporting skeleton, a rubber waist, a rubber lip and a spring sheet, wherein the supporting skeleton is used to install and support the sealing ring, the rubber waist is connected to the bottom of the supporting skeleton, and the rubber waist extends upward at an angle to form a space structure with a V-shaped cross-section between the supporting skeleton, the rubber lip is located at the end of the rubber waist, and is used to interference fit with the rotating shaft, the spring sheet has a V-shaped cross-section, is arranged in the V-shaped space, and the spring sheet is fixed to the supporting skeleton and the rubber waist through the skeleton spring fixing ribs and the waist spring fixing ribs.

[0005] Furthermore, the support skeleton includes a rubber skeleton, reinforcing glass fibers and skeleton spring fixing ribs, and the reinforcing glass fibers are arranged inside the rubber skeleton to reinforce the rubber skeleton.

[0006] Furthermore, the support frame is installed in a mounting groove of the sealing seat.

[0007] Furthermore, a sealing pressure plate is installed on the outer side of the support frame, and a pressure plate through hole and a pressure plate contact surface are provided on the sealing pressure plate. The sealing pressure plate is fixed to the sealing seat by bolts, and the fixed sealing pressure plate limits the support frame.

[0008] Furthermore, the spring sheet is attached to the rubber waist and the rubber frame by an adhesive, so as to provide radial elastic force for the rubber lip and ensure that the rubber lip is completely attached to the rotating shaft.

[0009] Furthermore, the frame spring fixing ribs and the waist spring fixing ribs are respectively provided at two locations on the support frame and the rubber waist, and are used to fix the spring sheet to avoid the spring falling off due to poor bonding.

[0010] Furthermore, the support frame, the rubber waist, the rubber lip, the sealing bottom and the rotating shaft form a sealed space for sealing lubricating oil ester.

[0011] Furthermore, the rubber frame, the sealing waist, the frame spring fixing ribs, the waist spring fixing ribs and the sealing lip are made of the same flexible rubber material.

[0012] The beneficial effects of the present invention are as follows: the rubber skeleton, the rubber waist and the rubber lip are all made of rubber material, the sealing product as a whole has good flexibility, and the rubber skeleton is reinforced with long glass fiber to ensure good stability of product size. The spring sheet gives the rubber lip radial elasticity to ensure the sealing effect of the product. The spring fixing rib ensures that the spring sheet is attached to the rubber skeleton and the rubber waist to prevent the spring from falling off.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention;

[0015] Figure 1 The markings are: 110-support frame, 111-rubber frame, 112-reinforced glass fiber, 113-frame spring fixing ribs, 120-rubber waist, 121-waist spring fixing ribs, 130-rubber lip, 140-spring leaf.

[0016] Figure 2 It is a schematic diagram of the assembly of the present invention;

[0017] Figure 2The markings are: 200-seal seat, 211-seal seat mounting groove, 212-seal seat threaded hole, 300-seal pressure plate, 311-pressure plate contact surface, 312-pressure plate through hole, 400-rotating shaft, 500-seal space. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1 As shown, a long glass fiber reinforced rubber skeleton type sealing ring structure includes a support skeleton 110, a rubber waist 120, a rubber lip 130 and a spring sheet 140. The support skeleton 100 includes a rubber skeleton 111, a reinforced glass fiber 112 and a skeleton spring fixing rib 113, which play the role of fixing and supporting the sealing ring. The rubber waist 120 connects the support skeleton 110 and the rubber lip 140, and the three form a V-shaped structure. The spring sheet 140 is firmly riveted to the support skeleton 110, the rubber waist 120 and the rubber lip 130 through the skeleton spring fixing rib 113 and the waist spring fixing rib 121 to avoid the risk of the spring falling off.

[0020] In this embodiment, the support frame 110 is preformed by composite extrusion of a rubber material 111 and a reinforced glass fiber 112 through an extruder, and then reacts with the rubber waist 120, the rubber lip 130 and the spring sheet 140 in a mold to form an integrally formed product.

[0021] like Figure 2 As shown, the sealing seat 200 is provided with a sealing installation groove 211 and a sealing threaded hole 212, and the sealing pressure plate 300 includes a pressure plate through hole 311 and a pressure plate contact surface 312. The rotating shaft 400 is a lip contact rotating component, and forms a sealing space 500 with the sealing ring support frame 110, the rubber waist 120 and the rubber lip 140.

[0022] In this embodiment, the sealing ring product is assembled into the sealing seat installation groove 211, and the sealing pressure plate 300 is locked with the sealing seat 200 through threads and the supporting frame 110 of the sealing ring is clamped. The rubber lip 130 is interference fit with the rotating shaft 400. The supporting frame 110, the rubber waist 120 and the rubber lip 130 form a V-shaped structure, and form a sealed space with the sealing base 200 and the rotating shaft 400 for sealing lubricating oil ester. The spring sheet 140 gives the rubber lip 130 radial elastic force to ensure that the rubber lip 130 and the rotating shaft 400 are always tightly fitted to ensure the sealing performance.

[0023] In summary, in this sealing ring structure, rubber material is used instead of materials such as dipped cloth to make the rubber skeleton of the seal, which ensures the overall flexibility of the seal product. At the same time, the rubber skeleton is reinforced with long glass fiber to ensure the dimensional stability of the product. At the same time, spring fixing ribs are designed at the supporting skeleton and the rubber waist to prevent the spring from falling off during the service of the product, thereby ensuring long-term stable operation of the bearing.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the protection scope of the present invention in any form, and all technical solutions obtained by equivalent replacement and the like fall within the protection scope of the present invention. The parts not involved in the present invention are the same as the prior art or can be implemented by the prior art.

Claims

1. A long glass fiber reinforced rubber skeleton type sealing structure, characterized in that: The sealing structure includes a supporting frame, a rubber waist, a rubber lip and a spring sheet. The supporting frame is used to install, fix and support the sealing ring. The rubber waist is connected to the bottom of the supporting frame, and the rubber waist extends upward at an angle to form a space structure with a V-shaped cross section between the supporting frame. The rubber lip is located at the end of the rubber waist and is used to interference fit with the rotating shaft. The spring sheet has a V-shaped cross section and is arranged in the V-shaped space. The spring sheet is fixed to the supporting frame and the rubber waist through the frame spring fixing ribs and the waist spring fixing ribs.

2. A long glass fiber reinforced rubber skeleton type sealing structure according to claim 1, characterized in that: The support frame includes a rubber frame, reinforced glass fibers and frame spring fixing ribs. The reinforced glass fibers are arranged inside the rubber frame to reinforce the rubber frame.

3. The long glass fiber reinforced rubber skeleton type sealing structure according to claim 1, characterized in that: The supporting frame is installed in the installation groove of the sealing seat.

4. A long glass fiber reinforced rubber skeleton type sealing structure according to claim 3, characterized in that: A sealing pressure plate is installed on the outer side of the support frame. A pressure plate through hole and a pressure plate contact surface are provided on the sealing pressure plate. The sealing pressure plate is fixed to the sealing seat by bolts. The fixed sealing pressure plate limits the support frame.

5. The long glass fiber reinforced rubber skeleton type sealing structure according to claim 1, characterized in that: The spring sheet is attached to the rubber waist and the rubber frame by an adhesive, and is used to provide radial elastic force for the rubber lip, ensuring that the rubber lip is completely attached to the rotating shaft.

6. The long glass fiber reinforced rubber skeleton type sealing structure according to claim 1, characterized in that: The frame spring fixing ribs and the waist spring fixing ribs are respectively arranged at two places on the supporting frame and the rubber waist, and are used to fix the spring sheet to avoid the spring falling off due to poor bonding.

7. The long glass fiber reinforced rubber skeleton type sealing structure according to claim 1, characterized in that: The support frame, the rubber waist, the rubber lip, the sealing bottom and the rotating shaft form a sealing space for sealing lubricating oil ester.

8. The long glass fiber reinforced rubber skeleton type sealing structure according to claim 2, characterized in that: The rubber frame, the sealing waist, the frame spring fixing ribs, the waist spring fixing ribs and the sealing lip are made of the same flexible rubber material.

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