High-temperature-resistant belleville spring

Abstract

The utility model provides a high temperature resistant belleville spring, which relates to the technical field of belleville springs and comprises a limit sleeve, a plurality of belleville springs are arranged in the limit sleeve, center holes are formed in the tops of the belleville springs, a shaft hole is formed in the bottom of the limit sleeve, a support shaft is inserted in the shaft hole, and a plurality of belleville springs are arranged in the support shaft. And one end of the supporting shaft penetrates through a plurality of belleville springs. According to the utility model, when the supporting shaft is pressed, the pressing plate presses the plurality of belleville springs, so that the limiting sleeve can limit the plurality of belleville springs, the belleville springs can only move up and down in the limiting sleeve, and the belleville springs can only move up and down in the limiting sleeve under the positioning action of the positioning groove and the guide rail; and the multiple belleville springs can stably move up and down in the limiting sleeve and cannot deflect, the belleville springs are further limited, the situation of circumferential movement and displacement between the belleville springs is effectively prevented, and the stability of the belleville springs in the using process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of disc springs, in particular to a high-temperature-resistant disc spring. Background Art

[0002] A disc spring is a special spring of a mechanical fitting made of different metals with an outer shape similar to a circular gasket. Because its outer shape is similar to a bowl or dish shape, it is called a disc spring. In the prior art, the disc spring has the characteristics of small volume, large load, convenient combined use, etc. At the same time, it has the advantage of concentrated load transfer. It can adopt single-piece mating combination, multi-piece stacking combination, and hybrid combination to obtain various different pressure curves.

[0003] In the prior art, disc springs are generally used together by being coaxially stacked. They have a relatively high elastic modulus. However, for the disc springs used together by stacking, there is no limiting mechanism between two adjacent disc springs, resulting in easy circumferential crosstalk displacement or deflection between the two disc springs, that is, the disc springs are not stable enough during use, which not only affects the elastic performance, but also increases the abnormal wear between the disc springs and is not conducive to long-term use. Summary of the Invention

[0004] The purpose of the utility model is to solve the problem in the prior art that there is no limiting mechanism between two adjacent disc springs, resulting in easy circumferential crosstalk displacement or deflection between the two disc springs, that is, the disc springs are not stable enough during use, which not only affects the elastic performance, but also increases the abnormal wear between the disc springs and is not conducive to long-term use, and to propose a high-temperature-resistant disc spring.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A high-temperature-resistant disc spring, including a limiting sleeve, wherein a plurality of disc springs are arranged in the limiting sleeve. Central holes are opened at the tops of the plurality of disc springs. An axial hole is opened at the bottom of the limiting sleeve. A support shaft is inserted into the axial hole. One end of the support shaft penetrates through the plurality of disc springs. A pressing plate is fixedly installed on the outer surface of the support shaft. A plurality of positioning grooves are opened on the outer surfaces of the plurality of disc springs. A plurality of guide rails are fixedly connected to the inner surface of the limiting sleeve. The positioning grooves are slidably connected to the surfaces of the guide rails. A plugging mechanism is arranged on the outer surface of the limiting sleeve, and a positioning mechanism is arranged on the plugging mechanism.

[0006] Preferably, the plugging mechanism includes a fixing frame fixedly connected to the outer surface of the limiting sleeve.

[0007] Preferably, a screw rod is threadedly connected to the inner side of the fixing frame. One end of the screw rod movably penetrates through the limiting sleeve, and a rotating handle is fixedly installed at the other end of the screw rod.

[0008] Preferably, the positioning mechanism includes a gear fixedly sleeved on the outer surface of the screw rod. A placement groove is formed on one side of the fixed frame, and a fixed rod is fixedly connected in the placement groove.

[0009] Preferably, a return spring is sleeved on the outer surface of the fixed rod, and a moving plate is sleeved on the outer surface of the fixed rod. One end of the return spring is fixedly connected to the moving plate.

[0010] Preferably, a positioning block is fixedly connected to one side of the moving plate. The end of the positioning block away from the moving plate is engaged in the tooth marks of the gear. A handle is fixedly connected to the front side of the moving plate.

[0011] Preferably, a high-temperature resistant coating is provided on the outer surface of each of the plurality of disc springs. The high-temperature resistant coating is made of tungsten alloy material.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, when the support shaft is under pressure, the pressing plate presses down on a plurality of disc springs. Since the edges of the plurality of disc springs are all in contact with the inner wall of the limiting sleeve, the limiting sleeve can limit the plurality of disc springs, so that the disc springs can only move up and down in the limiting sleeve. At the same time, under the positioning action of the positioning groove and the guide rail, the plurality of disc springs can stably move up and down in the limiting sleeve without deflection, further limiting the disc springs, effectively preventing the occurrence of circumferential crosstalk displacement between the disc springs, and improving the stability of the disc springs during use.

[0014] 2. In the present utility model, by providing a positioning mechanism, pulling the handle to move, making the handle away from the screw rod, so that the moving plate drives the positioning block to move away from the screw rod. At the same time, the return spring is compressed and starts to contract. Then, after the pressing plate is clamped in the limiting sleeve by the blocking mechanism, the handle is released. Under the elastic force of the return spring, the moving plate drives the positioning block to squeeze into the tooth marks of the gear, thereby limiting and fixing the screw rod, avoiding the self-rotation of the screw rod from affecting the stability of the disc springs during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of the main structure of a high-temperature resistant disc spring proposed by the present utility model;

[0016] Figure 2 is a three-dimensional view of the sectional structure of a high-temperature resistant disc spring proposed by the present utility model;

[0017] Figure 3 is a three-dimensional view of the bottom side structure of a high-temperature resistant disc spring proposed by the present utility model;

[0018] Figure 4 The present utility model provides a three-dimensional structure diagram of a disc spring in a high-temperature resistant disc spring.

[0019] Figure 5 The present utility model provides a three-dimensional structure diagram of a limit sleeve in a high-temperature resistant disc spring.

[0020] Figure 6 For Figure 1 the enlarged view at position A in

[0021] Legend: 1. Limit sleeve; 2. Disc spring; 3. Central hole; 4. Shaft hole; 5. Support shaft; 6. Pressure plate; 7. Positioning groove; 8. Guide rail; 9. Sealing mechanism; 901. Fixed frame; 902. Screw; 903. Rotating handle; 10. Positioning mechanism; 110. Gear; 120. Placing groove; 130. Fixed rod; 140. Return spring; 150. Moving plate; 160. Positioning block; 170. Handle. Detailed implementation mode

[0022] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0023] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0024] Embodiment 1: As Figure 1 - Figure 6 shown, the present utility model provides a high-temperature resistant disc spring, including a limit sleeve 1, a plurality of disc springs 2 are arranged inside the limit sleeve 1, central holes 3 are opened at the tops of the plurality of disc springs 2, a shaft hole 4 is opened at the bottom of the limit sleeve 1, a support shaft 5 is inserted into the shaft hole 4, one end of the support shaft 5 penetrates through the plurality of disc springs 2, a pressure plate 6 is fixedly installed on the outer surface of the support shaft 5, a plurality of positioning grooves 7 are opened on the outer surfaces of the plurality of disc springs 2, a plurality of guide rails 8 are fixedly connected to the inner surface of the limit sleeve 1, and the positioning grooves 7 are slidably connected to the surfaces of the guide rails 8. A sealing mechanism 9 is arranged on the outer surface of the limit sleeve 1, and a positioning mechanism 10 is arranged on the sealing mechanism 9.

[0025] The effect achieved by the entire Embodiment 1 is that when the support shaft 5 is under pressure, the pressing plate 6 presses down several disc springs 2. Since the edges of the several disc springs 2 are all in contact with the inner wall of the limiting sleeve 1, the limiting sleeve 1 can limit the several disc springs 2, enabling the disc springs 2 to only move up and down within the limiting sleeve 1. At the same time, under the positioning action of the positioning groove 7 and the guide rail 8, the several disc springs 2 can stably move up and down within the limiting sleeve 1 without deflection, further limiting the disc springs 2 and effectively preventing the occurrence of circumferential crosstalk displacement between the disc springs 2, improving the stability of the disc springs 2 during use.

[0026] Embodiment 2: As Figure 1 - Figure 6 shown, the plugging mechanism 9 includes a fixing frame 901, the fixing frame 901 is fixedly connected to the outer surface of the limiting sleeve 1, a screw rod 902 is threadedly connected to the inner side of the fixing frame 901, one end of the screw rod 902 movably penetrates through the limiting sleeve 1, a rotating handle 903 is fixedly installed at the other end of the screw rod 902, the positioning mechanism 10 includes a gear 110, the gear 110 is fixedly sleeved on the outer surface of the screw rod 902, a placement groove 120 is opened on one side of the fixing frame 901, a fixing rod 130 is fixedly connected in the placement groove 120, a return spring 140 is sleeved on the outer surface of the fixing rod 130, a moving plate 150 is sleeved on the outer surface of the fixing rod 130, one end of the return spring 140 is fixedly connected to the moving plate 150, a positioning block 160 is fixedly connected to one side of the moving plate 150, and one end of the positioning block 160 away from the moving plate 150 is engaged in the tooth marks of the gear 110. A handle 170 is fixedly connected to the front side of the moving plate 150. High-temperature resistant coatings are provided on the outer surfaces of the several disc springs 2, and the high-temperature resistant coatings are made of tungsten alloy materials.

[0027] The effect achieved by the entire embodiment 2 is that, by providing a blocking mechanism 9, the handle 903 is rotated forwardly to drive the screw rod 902 to rotate forwardly, and under the action of the thread, the screw rod 902 is driven to move into the limiting sleeve 1, which is convenient for blocking the pressure plate 6. The pressure plate 6 can be stuck in the limiting sleeve 1, so that the support shaft 5 and the plurality of disc springs 2 are all stuck inside the limiting sleeve 1. At the same time, the handle 903 is reversed to drive the screw rod 902 to move to the outside of the limiting sleeve 1, which is convenient for releasing the limit of the pressure plate 6, that is, the support shaft 5, the plurality of disc springs 2, the pressure plate 6 and the limiting sleeve 1 can be easily disassembled, and then the positioning mechanism 10 is provided to pull the handle 170 to move, so that the handle 170 is away from the screw rod 902, so that the movable plate 150 drives the positioning block 160 to move and away from the screw rod 902, and at the same time the reset spring 140 is squeezed and starts to shrink, and then the pressure plate 6 is stuck in the limiting sleeve 1 through the blocking mechanism 9, and then the handle 170 is released, and under the elastic force of the reset spring 140, the movable plate 150 drives the positioning block 160 to squeeze into the tooth mark of the gear 110, so as to limit and fix the screw rod 902, and prevent the screw rod 902 from rotating and affecting the stability of the disc spring 2 during use, and then the outer surfaces of the disc springs 2 are provided with a high-temperature resistant coating, and the high-temperature resistant coating is made of tungsten alloy material, so that the disc spring 2 can be suitable for high-temperature occasions.

[0028] Working principle: When in use, pull the handle 170 to move, so that the handle 170 is away from the screw rod 902, so that the moving plate 150 drives the positioning block 160 to move and move away from the screw rod 902, and at the same time the reset spring 140 is squeezed and begins to shrink, and then the handle 903 is turned forward to drive the screw rod 902 to rotate forward, and under the action of the thread, the screw rod 902 is driven to move into the limiting sleeve 1, and the pressure plate 6 can be stuck in the limiting sleeve 1, so that the support shaft 5 and several disc springs 2 are all stuck in the limiting sleeve 1, and then the handle 170 is released, and under the elastic force of the reset spring 140, the moving plate 150 drives the positioning block 160 to squeeze into the tooth mark of the gear 110, thereby limiting and fixing the screw rod 902 to prevent the screw rod 902 from being stuck. 02 The rotation affects the stability of the disc spring 2 during use. When the support shaft 5 is subjected to pressure, the pressure plate 6 presses down the disc springs 2. Since the edges of the disc springs 2 are in contact with the inner wall of the limiting sleeve 1, the limiting sleeve 1 can limit the disc springs 2, so that the disc springs 2 can only move up and down in the limiting sleeve 1. At the same time, under the positioning action of the positioning groove 7 and the guide rail 8, the disc springs 2 can stably move up and down in the limiting sleeve 1 without deflection, and the disc springs 2 are further limited, effectively preventing the circumferential movement and displacement between the disc springs 2. At the same time, the outer surfaces of the disc springs 2 are provided with a high-temperature resistant coating, so that the disc springs 2 can be suitable for high-temperature occasions.

[0029] As described above, it is only the preferred embodiment of the present utility model, and does not impose other forms of restrictions on the present utility model. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high temperature resistant disc spring, comprising a limiting sleeve (1), characterized in that: A plurality of disc springs (2) are arranged in the limiting sleeve (1), and a center hole (3) is formed at the top of each of the disc springs (2). An axial hole (4) is formed at the bottom of the limiting sleeve (1), and a support shaft (5) is inserted into the axial hole (4). One end of the support shaft (5) passes through the plurality of disc springs (2). A pressure plate (6) is fixedly mounted on the outer surface of the support shaft (5). A plurality of positioning grooves (7) are formed on the outer surfaces of each of the disc springs (2). A plurality of guide rails (8) are fixedly connected to the inner surface of the limiting sleeve (1), and the positioning grooves (7) are slidably connected to the surface of the guide rails (8). A blocking mechanism (9) is provided on the outer surface of the limiting sleeve (1), and a positioning mechanism (10) is provided on the blocking mechanism (9).

2. A high temperature resistant disc spring according to claim 1, characterized in that: The blocking mechanism (9) comprises a fixing frame (901), and the fixing frame (901) is fixedly connected to the outer surface of the limiting sleeve (1).

3. A high temperature resistant disc spring according to claim 2, characterized in that: The inner side of the fixing frame (901) is threadedly connected to a screw rod (902), one end of the screw rod (902) movably passes through the limiting sleeve (1), and the other end of the screw rod (902) is fixedly mounted with a rotating handle (903).

4. A high temperature resistant disc spring according to claim 2, characterized in that: The positioning mechanism (10) comprises a gear (110), the gear (110) being fixedly sleeved on the outer surface of the screw rod (902), a placement groove (120) being provided on one side of the fixing frame (901), and a fixing rod (130) being fixedly connected in the placement groove (120).

5. The high temperature resistant disc spring according to claim 4, characterized in that: The outer surface of the fixed rod (130) is sleeved with a return spring (140), the outer surface of the fixed rod (130) is sleeved with a moving plate (150), and one end of the return spring (140) is fixedly connected to the moving plate (150).

6. A high temperature resistant disc spring according to claim 5, characterized in that: A positioning block (160) is fixedly connected to one side of the movable plate (150), and an end of the positioning block (160) away from the movable plate (150) is engaged in a tooth mark of the gear (110). A handle (170) is fixedly connected to the front side of the movable plate (150).

7. The high temperature resistant disc spring according to claim 1, characterized in that: The outer surfaces of the plurality of disc springs (2) are provided with a high temperature resistant coating, and the high temperature resistant coating is made of tungsten alloy material.

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