Lift valve self-adaptive double-riding-wheel-set mechanism with anti-deflection function

Abstract

The utility model discloses a lift valve self-adaption double riding wheel set mechanism with an anti-deflection function, which comprises a self-adaption double riding wheel set, the self-adaption double riding wheel set is arranged on a valve seat valve body assembly, and the valve seat valve body assembly and a valve shaft valve plate assembly are pressed and contacted to realize closing and sealing of a lift valve. In the process that the valve is pressed and opened, a valve rear shaft in the valve shaft assembly is always in close fit with the self-adaptive riding wheel set to achieve the purposes of deflection prevention and riding wheel guiding, and the self-adaptive double riding wheel set is composed of two parts including an anti-deflection flexible pressing wheel and a self-adaptive double riding wheel set. An anti-deflection flexible pressing wheel and a self-adaption double-supporting-wheel assembly are matched to form a rear supporting wheel set mechanism of the lifting valve, the anti-deflection flexible pressing wheel is installed above a valve rear shaft, the anti-deflection flexible pressing wheel is matched with a plane on the rear shaft through the pressing wheel, the self-adaption double-supporting-wheel assembly is installed below the valve rear shaft, and the rear shaft of the lifting valve is supported so that the levelness of the whole lifting valve can be kept.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, specifically relating to an adaptive double roller assembly mechanism for a lift valve with anti-deflection function. Background Technology

[0002] Volatile organic compounds (VOCs) generally refer to organic compounds that are volatile. In the environmental protection field, they refer to those VOCs that can cause harm, such as formaldehyde, benzene compounds, and hydrocarbons. These VOCs pose certain potential hazards to the atmospheric environment and human health, making them a key focus of air pollution prevention and control. With industrial development, the emission of organic waste gas has increased rapidly, and the issue of VOCs treatment has received increasing attention. With the development of comprehensive VOCs treatment technologies and continuous exploration in engineering practice, regenerative thermal oxidation (RTO) and regenerative catalytic oxidation (RCO) technologies have become the mainstream VOCs treatment processes.

[0003] As a core component of the RTO&RCO system, the lift valve is characterized by frequent switching (a reversing cycle every 90-180 seconds) and harsh operating environments (temperature fluctuations, corrosive exhaust gases, etc.). Based on the actual results of existing projects, there are some details that affect the stability and expected lifespan of the lift valve, mainly as follows:

[0004] Misalignment between the valve shaft and valve seat leads to poor shaft seal sealing; self-deflection of the valve plate and valve shaft affects the sealing effect and causes the cylinder connector to loosen; uneven wear of the bearings in the single roller group leads to premature shutdown for maintenance.

[0005] In view of the above factors, in order to ensure accurate positioning and stable operation of the lifting valve and extend the maintenance cycle, it is necessary to improve the valve structure design to ensure that the lifting valve has good sealing performance and operational stability. This paper proposes an adaptive double roller assembly mechanism for the lifting valve with anti-deflection function. The mechanism adopts an adaptive double roller assembly and an anti-deflection pressure roller structure, which enhances the adaptability of the roller assembly to uneven valve shaft and corrects the problem of self-deflection during valve operation. The improvement of the roller assembly structure eliminates or optimizes the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide an adaptive double roller assembly mechanism for a lift valve with anti-deflection function, so as to solve the problems mentioned in the background art.

[0007] The purpose of this utility model is achieved through the following technical solution: a lift valve adaptive double roller assembly mechanism with anti-deflection function, including an adaptive roller assembly, wherein the adaptive roller assembly is installed on the valve seat and valve body assembly, the valve seat and valve body assembly and the valve shaft and valve plate assembly are pressed together to realize the closing and sealing of the lift valve, and during the valve pressing and opening process, the valve rear shaft in the valve shaft assembly is always in close cooperation with the adaptive roller assembly to achieve the purpose of anti-deflection and roller guidance;

[0008] The adaptive roller assembly consists of two parts: an anti-deflection flexible pressure roller and an adaptive double roller assembly. The anti-deflection flexible pressure roller and the adaptive double roller assembly work together to form the rear roller assembly mechanism of the lifting valve.

[0009] The anti-deflection flexible pressure roller is installed above the valve's rear shaft. The pressure roller engages with the plane on the rear shaft. The adaptive double support roller assembly is installed below the valve's rear shaft to support the rear shaft of the lifting valve and maintain the overall levelness of the lifting valve.

[0010] Furthermore, the adaptive dual roller assembly consists of a roller mounting plate, a mounting base, and rollers. The rollers are mounted on two shafts on the front of the roller mounting plate, and the support shaft on the back cooperates with the mounting base to form an adaptive roller structure.

[0011] Furthermore, two guide rollers are installed on each of the left and right sides of the adaptive roller structure to provide radial support for the movement of the valve shaft and valve plate.

[0012] Furthermore, the anti-deflection flexible pressure roller assembly consists of a pressure roller and an elastic inner bushing. The pressure roller is made of wear-resistant alloy steel with a hardened surface; the elastic inner bushing is made of modified fluororubber or nano-carbon fiber composite material.

[0013] Furthermore, the adaptive roller structure can rotate around the support shaft to ensure contact between the roller and the valve shaft.

[0014] Furthermore, the cooperation between the back support shaft of the roller mounting plate and the wear-resistant sleeve allows the double roller assembly to rotate around the support shaft, thus ensuring that the contact angle between the roller and the valve shaft can be adaptively adjusted within a certain range.

[0015] Furthermore, the mounting base is embedded with a wear-resistant sleeve, which is made of graphite self-lubricating bushing or high-temperature and corrosion resistant non-metallic bushing. The wear-resistant sleeve ensures that the support shaft of the roller mounting plate and the mounting base can rotate freely without obstruction.

[0016] Furthermore, the upper surface of the valve rear shaft is provided with a plane that cooperates with the anti-deflection flexible pressure roller.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model adopts an adaptive double support roller assembly and an anti-deflection pressure roller structure, which enhances the adaptability of the support roller assembly to valve shaft unevenness and corrects the problem of self-deflection during valve operation. The aforementioned problems are eliminated or optimized by improving the support roller assembly structure.

[0019] This utility model relates to an adaptive double support roller assembly, which consists of a support roller mounting plate, a mounting base, and support rollers. The support rollers are mounted on two shafts on the front of the support roller mounting plate, and the support shaft on the back cooperates with the mounting base to form an adaptive support roller structure. Two guide rollers are installed on each of the left and right sides of this mechanism to provide radial support for the movement of the valve shaft and valve plate. Simultaneously, the design of this structure, which allows rotation around the support shaft, ensures contact between the support rollers and the valve shaft. That is, even when the valve shaft is uneven, the support rollers will adaptively adjust the contact angle to ensure contact with the valve shaft without any gaps or loose support.

[0020] This utility model has an anti-deflection function and an adaptive double support roller group structure, which provides adaptive support for large lifting valves, optimizes the smoothness of lifting valve operation, and extends the maintenance cycle. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the assembly of the adaptive roller assembly described in this utility model in the lift valve;

[0022] Figure 2 This is the adaptive roller assembly component described in this utility model;

[0023] Figure 3 This is an isometric drawing of the adaptive roller assembly described in this utility model;

[0024] Figure 4 The anti-deflection flexible pressure roller assembly described in this utility model;

[0025] Figure 5 This is a detailed drawing of the base of the adaptive roller assembly described in this utility model;

[0026] Figure 6 This is a detailed drawing of the adaptive roller support base described in this utility model. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] like Figure 1-6 As shown, a lift valve adaptive double roller assembly mechanism with anti-deflection function includes an adaptive roller assembly. The adaptive roller assembly is installed on the valve seat and valve body assembly. The valve seat and valve body assembly and the valve shaft and valve plate assembly are pressed together to achieve the closing and sealing of the lift valve. During the valve pressing and opening process, the valve rear shaft in the valve shaft assembly is always in close cooperation with the adaptive roller assembly to achieve the purpose of anti-deflection and roller guidance.

[0031] The adaptive roller assembly consists of two parts: an anti-deflection flexible pressure roller and an adaptive double roller assembly. The anti-deflection flexible pressure roller and the adaptive double roller assembly work together to form the rear roller assembly mechanism of the lifting valve.

[0032] The anti-deflection flexible pressure roller is installed above the valve's rear shaft. The pressure roller engages with the plane on the rear shaft. The adaptive double support roller assembly is installed below the valve's rear shaft to support the rear shaft of the lifting valve and maintain the overall levelness of the lifting valve.

[0033] A further preferred embodiment of this utility model is that the adaptive double support roller assembly consists of a support roller mounting plate, a mounting base, and support rollers. The support rollers are mounted on two shafts on the front of the support roller mounting plate, and the support shaft on the back cooperates with the mounting base to form an adaptive support roller structure.

[0034] A further preferred embodiment of this utility model is that two guide rollers are installed on each of the left and right sides of the adaptive roller structure to provide radial support for the movement of the valve shaft and valve plate.

[0035] A further preferred embodiment of this utility model is that the anti-deflection flexible pressure roller assembly consists of a pressure roller and an elastic inner bushing. The pressure roller is made of wear-resistant alloy steel with a hardened surface. The elastic inner bushing is made of modified fluororubber or nano-carbon fiber composite material.

[0036] A further preferred embodiment of this utility model is that the adaptive roller structure can rotate around the support shaft to ensure contact between the roller and the valve shaft.

[0037] In a further preferred embodiment of this utility model, the cooperation between the back support shaft of the roller mounting plate and the wear-resistant sleeve allows the double roller assembly to rotate around the support shaft, thus ensuring that the angle of contact between the roller and the valve shaft can be adaptively adjusted within a certain range.

[0038] A further preferred embodiment of this utility model is that the mounting base is embedded with a wear-resistant sleeve, which is a graphite self-lubricating bushing or a high-temperature and corrosion-resistant non-metallic bushing. The wear-resistant sleeve ensures that the support shaft of the roller mounting plate and the mounting base can rotate freely without obstruction.

[0039] A further preferred embodiment of this utility model is that the upper surface of the valve rear shaft is provided with a plane that cooperates with the anti-deflection flexible pressure roller.

[0040] like Figure 1 The diagram shows the assembly of the adaptive roller assembly of this utility model in a lift valve. The lift valve is in the open state and consists of three components: the adaptive roller assembly structural component 1, the valve shaft and valve plate assembly 2, and the valve seat assembly 3. The valve shaft and valve plate assembly 2 and the valve seat and valve body assembly 3 are pressed together to achieve the closing and sealing functions of the lift valve. During the valve pressing and opening process, the rear shaft in the valve shaft assembly 2 is always in close contact with the adaptive roller assembly to achieve the purpose of preventing deflection and guiding the rollers.

[0041] like Figure 2 and Figure 3 As shown, the anti-deflection flexible pressure roller 101 and the adaptive double support roller assembly 102 constitute the adaptive support roller assembly 1. The anti-deflection flexible pressure roller 101 is installed above the valve rear shaft 201, and through the mating of the pressure roller with the plane on the rear shaft, it prevents the valve shaft and valve plate from deflecting. The adaptive double support roller assembly 102 is installed below the valve rear shaft 201, supporting the rear shaft of the lifting valve to maintain the levelness of the entire lifting valve and ensure a tight seal between the valve plate and the valve seat. The support roller mounting plate 103 and the support roller assembly mounting base 104 together realize the adaptive function of the double support roller assembly. It can keep the contact between the support roller assembly and the valve shaft adjustable, so that the valve shaft can be well supported even in uneven conditions, optimizing the stress conditions and improving the service life of the rear support roller assembly.

[0042] like Figure 4As shown, the anti-deflection flexible pressure roller 101 assembly consists of a pressure roller 101-a and an elastic inner bushing 101-b. The pressure roller 101-a is made of wear-resistant alloy steel with a hardened surface, which has the characteristics of wear resistance, corrosion resistance, temperature resistance and long service life. The elastic inner bushing 101-b is made of modified fluororubber or nano carbon fiber composite material, which has the characteristics of corrosion resistance, high temperature resistance and high resilience, ensuring that the contact surface between the pressure roller and the valve shaft is in a flexible pressing state, that is, to reduce the friction loss caused by rigid contact while ensuring sliding guidance.

[0043] like Figure 5 and Figure 6 As shown, the roller mounting plate 103 and the mounting base 104 together form the structure of the adaptive double roller assembly. The cooperation between the back support shaft of the roller mounting plate 103 and the wear-resistant sleeve 104-b allows the double roller assembly to rotate around the support shaft. This ensures that the contact angle between the roller and the valve shaft is adaptively adjusted within a certain range, always supporting the valve shaft without any empty support. This setting ensures the support effect of the roller assembly, ensures the stability of the valve plate and valve seat, reduces the radial force on the piston inside the cylinder, and extends the service life of the lifting valve cylinder.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lift valve adaptive double support roller assembly mechanism with anti-deflection function, characterized in that: The device includes an adaptive roller assembly, which is mounted on the valve seat and valve body assembly. The valve seat and valve body assembly and the valve shaft and valve plate assembly are pressed together to achieve the closing and sealing of the lift valve. During the valve pressing and opening process, the valve shaft in the valve shaft assembly is always in close cooperation with the adaptive roller assembly to achieve the purpose of preventing deflection and guiding the rollers. The adaptive roller assembly consists of two parts: an anti-deflection flexible pressure roller and an adaptive double roller assembly. The anti-deflection flexible pressure roller and the adaptive double roller assembly work together to form the rear roller assembly mechanism of the lifting valve. The anti-deflection flexible pressure roller is installed above the valve's rear shaft. The pressure roller engages with the plane on the rear shaft. The adaptive double support roller assembly is installed below the valve's rear shaft to support the rear shaft of the lifting valve and maintain the overall levelness of the lifting valve.

2. The adaptive double-roller assembly mechanism for the lifting valve with anti-deflection function according to claim 1, characterized in that: The adaptive double roller assembly consists of a roller mounting plate, a mounting base, and rollers. The rollers are mounted on two shafts on the front of the roller mounting plate, and the support shaft on the back cooperates with the mounting base to form an adaptive roller structure.

3. The adaptive double-roller assembly mechanism for the lifting valve with anti-deflection function according to claim 2, characterized in that: The adaptive roller structure has two guide rollers installed on each of its left and right sides to provide radial support for the movement of the valve shaft and valve plate.

4. The adaptive double-roller assembly mechanism for the lifting valve with anti-deflection function according to claim 3, characterized in that: The anti-deflection flexible pressure roller assembly consists of a pressure roller and an elastic inner bushing. The pressure roller is made of wear-resistant alloy steel with a hardened surface. The elastic inner bushing is made of modified fluororubber or nano-carbon fiber composite material.

5. The adaptive double-roller assembly mechanism for the lifting valve with anti-deflection function according to claim 4, characterized in that: The adaptive roller structure can rotate around the support shaft to ensure contact between the roller and the valve shaft.

6. The adaptive double-roller assembly mechanism for the lifting valve with anti-deflection function according to claim 5, characterized in that: The cooperation between the back support shaft of the roller mounting plate and the wear-resistant sleeve allows the double roller assembly to rotate around the support shaft, thus ensuring that the contact angle between the roller and the valve shaft can be adaptively adjusted within a certain range.

7. The adaptive double-roller assembly mechanism for the lifting valve with anti-deflection function according to claim 6, characterized in that: The mounting base is embedded with a wear-resistant sleeve, which is made of graphite self-lubricating bushing or high-temperature and corrosion resistant non-metallic bushing. The wear-resistant sleeve ensures that the support shaft of the roller mounting plate and the mounting base can rotate freely without jamming.

8. The adaptive double-roller assembly mechanism for the lifting valve with anti-deflection function according to claim 7, characterized in that: The upper surface of the valve shaft is provided with a plane that cooperates with the anti-deflection flexible pressure roller.

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