Gear metering pump with novel sealing structure
By adopting a combined structure of inner cone groove and sealing ring in the gear metering pump, combined with a multi-stage sealing design, the problems of short sealing life and poor sealing effect in the prior art are solved, and better sealing performance and longer service life are achieved.
Patent Information
- Application Number
- CN202323637859.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The seals of existing para-aramid gear metering pumps have a short life, resulting in leakage of materials at the shaft head and poor sealing effect.
A gear metering pump with a new sealing structure is designed, adopting a combined structure of an inner cone groove and a sealing ring. The inner cone groove generates an inward lateral force to squeeze the leakage inward, enhancing the sealing performance, and further improving the sealing effect through multi-stage sealing designs (such as the cooperation of gaskets and sealing rings).
It effectively improves the sealing performance of the shaft head of the metering pump body, reduces leakage, significantly improves the sealing effect, and extends the service life of the seal.
Smart Images
Figure CN222558751U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gear pumps, in particular to a gear metering pump with a novel sealing structure. Background Art
[0002] The para-aramid metering pump is a gear pump in the form of a gear. It is one of the key components of the para-aramid spinning line. Its purpose is to evenly and equally transport the spinning melt to the spinning assembly. At present, many spinning metering pumps have unreliable shaft head seals and short seal life, resulting in shaft head leakage.
[0003] However, in the specific use of some existing traditional para-aramid gear metering pumps, due to the relative movement between the metering pump shaft and the seal, the high pressure inside the pump, and the serious corrosiveness of the raw materials, the seal life is short, and the shaft head leaks in the later period. Therefore, in view of the above problems, a gear metering pump with a new sealing structure is proposed, which can completely overcome the above technical problems. In actual application, the sealing effect is good and is suitable for comprehensive promotion and application. Utility Model Content
[0004] The utility model aims to solve the shortcomings of the prior art and proposes a gear metering pump with a novel sealing structure, aiming to improve the problems of low seal life and shaft head leakage in the prior art.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A gear metering pump with a novel sealing structure comprises a metering pump body, a transmission shaft connected to the metering pump body, a key fixedly connected to a sealing ring on the transmission shaft, the structure fixedly connected to the right side of the metering pump body, the right end of the metering pump body is a front cover plate, a sealing ring is connected to the right side of the front cover plate, a plurality of inner conical grooves are provided on the left side of the sealing ring, a gasket is connected to the outside of the sealing ring, a sealing seat is fixedly connected to the right side of the gasket, a screw is fixedly connected to the right part of the sealing seat and fastened to the front cover plate, a pressure cover is provided on the right side of the sealing seat, three screws are threadedly connected to the right side of the pressure cover, a gasket is connected to the left side of the outside of the pressure cover, a sealing ring is connected to the left side of the gasket one, a sealing ring is connected to the left side of the sealing ring one, a gasket is connected to the left side of the sealing ring one, and a sealing ring is connected to the left side of the gasket two.
[0007] Furthermore, the outside of the gasket 1 is slidably connected to the inside of the sealing seat, and the outside of the sealing ring 1 is slidably connected to the inside of the sealing seat.
[0008] Furthermore, the outer portion of the second gasket slides inside the sealing seat, and the outer portion of the second sealing ring is slidably connected to the inside of the sealing seat.
[0009] Furthermore, the sealing ring is slidably connected to the inside of the gasket, and the left side of the inner conical groove is in contact with the right side of the front cover plate.
[0010] The utility model has the following beneficial effects:
[0011] In the utility model, through the structural transformation of the utility model, in actual application, the inner conical groove generates an inward lateral force, which squeezes the leaked material inward, increases the pressure at the shaft head of the metering pump body, and reduces leakage. When the sealing ring is used in conjunction with the inner conical groove, it can assist in improving the sealing performance of the metering pump body. Then, through the structural design of gasket one and sealing ring one in conjunction with gasket two and sealing ring two, the overall sealing performance of the equipment is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a front view and a side view of a gear metering pump with a novel sealing structure according to the utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of a gear metering pump with a novel sealing structure according to the utility model;
[0014] Figure 3 This is a schematic diagram of the sealing ring structure of the utility model;
[0015] Figure 4 It is a side view of the sealing ring of the utility model.
[0016] In the figure: 1. metering pump body; 2. transmission shaft; 3. key; 4. front cover; 5. sealing ring; 6. inner conical groove; 7. gasket; 8. sealing seat; 9. pressure cover; 10. screw; 11. gasket 1; 12. sealing ring 1; 13. gasket 2; 14. sealing ring 2. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] Example 1
[0019] Reference Figure 1-4 As shown,
[0020] A gear metering pump with a novel sealing structure comprises a metering pump body 1, the metering pump body 1 is fixedly connected to the sealing structure, the right end of the metering pump body 1 is a front cover plate 4, the front cover plate 4 provides additional external protection and the function of maintaining the internal components of the metering pump body 1, the right side of the front cover plate 4 is fixedly connected with a sealing ring 5, the sealing ring 5 is fixedly connected to provide effective sealing performance, the inside of the sealing ring 5 is slidably connected to the right side of the metering pump body 1, the metering pump body 1 is used for accurately metering and conveying fluids, the right side of the metering pump body and the left side of the inner conical groove 6 are connected to the front The right side of the cover plate 4 is in contact, and a plurality of inner conical grooves 6 are provided on the left side of the sealing ring 5. The inner conical grooves 6 generate an inward lateral force to squeeze the leaked material inward, thereby increasing the pressure at the shaft head of the metering pump body 1 and reducing leakage. The outside of the sealing ring 5 is connected with a gasket 7, which provides additional support and sealing. The right side of the gasket 7 is fixedly connected with a sealing seat 8, and the right part of the sealing seat 8 is fixedly connected with a pressure cap 9. The pressure cap 9 is connected with three screws 10 through the right side thread to ensure a tight connection with the sealing seat 8. The right side of the pressure cap 9 is connected with three screws 10 through the right side thread.
[0021] A gasket 11 is fixedly connected to the left side of the outer part of the pressure cover 9, and the gasket 11 and the gasket 2 13 are used to block the sealing ring 12 and the sealing ring 2 14. The outer part of the gasket 11 is slidably connected to the inside of the sealing seat 8, and the outer part of the sealing ring 12 is slidably connected to the inside of the sealing seat 8. The left side of the gasket 11 is fixedly connected to the sealing ring 12. The sealing ring 12 and the sealing ring 2 14 are used to improve the sealing performance of the metering pump body 1. The left side of the sealing ring 12 is fixedly connected to the gasket 2 13, and the outer part of the gasket 2 13 slides inside the sealing seat 8. The outer part of the sealing ring 2 14 slides inside the sealing seat 8, and the left side of the gasket 2 13 is fixedly connected to the sealing ring 2 14.
[0022] Working principle: In order to prevent the material from leaking from the metering pump body, a sealing ring 5 with multiple inner conical grooves 6 is added between the front cover plate 4 and the sealing seat 8. The inner conical grooves 6 of the sealing ring 5 are close to the front cover plate 4. The sealing ring 5 rotates with the transmission shaft 2. The inner conical grooves 6 generate an inward lateral force to squeeze the leaked material inward, increase the pressure on the shaft head of the metering pump body 1, and reduce leakage. When the sealing ring 5 is used in conjunction with the inner conical grooves 6, it can help improve the sealing performance of the metering pump body 1, and then multi-stage sealing is performed through gasket 11 and sealing ring 12 in conjunction with gasket 2 13 and sealing ring 2 14, thereby improving the overall sealing performance of the equipment. In actual application, the sealing effect is good.
[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the present invention.
Claims
1. A gear metering pump with a novel sealing structure, comprising a metering pump body (1) and a transmission shaft (2), wherein the transmission shaft (2) is connected to the metering pump body (1), a key (3) fixedly connected to a sealing ring is provided on the transmission shaft (2), the right end of the metering pump body (1) is a front cover plate (4), and a sealing ring (5) is fixedly connected to the right side of the front cover plate (4), characterized in that: A plurality of inner conical grooves (6) are provided on the left side of the sealing ring (5), a gasket (7) is provided on the outside of the sealing ring (5), a sealing seat (8) is fixedly connected to the right side of the gasket (7), a pressure cover (9) is fixedly connected to the right side of the sealing seat (8), a plurality of screws (10) are threadedly connected to the right side of the pressure cover (9), a gasket 1 (11) is provided on the left side of the pressure cover (9), a sealing ring 1 (12) is provided on the left side of the gasket 1 (11), a gasket 2 (13) is provided on the left side of the sealing ring 1 (12), and a sealing ring 2 (14) is provided on the left side of the gasket 2 (13).
2. A gear metering pump with a novel sealing structure according to claim 1, characterized in that: The outside of the gasket 1 (11) is slidably connected to the inside of the sealing seat (8), and the outside of the sealing ring 1 (12) is slidably connected to the inside of the sealing seat (8).
3. The gear metering pump with a novel sealing structure according to claim 1, characterized in that: The outer portion of the second gasket (13) is slidably connected to the inner portion of the sealing seat (8), and the outer portion of the second sealing ring (14) is slidably connected to the inner portion of the sealing seat (8).
4. The gear metering pump with a novel sealing structure according to claim 1, characterized in that: The interior of the sealing ring (5) is slidably connected to the interior of the gasket (7), and the left side of the inner conical groove (6) is in contact and pressed against the right side of the front cover plate (4).