Belleville spring with overload protection function

Abstract

The utility model discloses a belleville spring with an overload protection function, which relates to the technical field of belleville springs, solves the problems that the existing belleville spring is not provided with a load limiting structure, is very easy to deform excessively when in overload use and thus loses an elastic function, and comprises a load limiting seat which is inserted into a mounting upright post. The load limiting assembly can limit the maximum load when the belleville spring is used, and when the maximum load is reached, the original mode that external load is flexibly supported by the belleville spring is converted into rigid support of the mounting assembly, so that the overload load force cannot act on the belleville spring, and the load limiting assembly can limit the maximum load when the belleville spring is used. Stable use of the belleville springs is effectively protected, the phenomenon of overload damage failure is avoided, meanwhile, the maximum load value controlled by the load limiting assembly can be freely adjusted and controlled for use, and therefore the mounting assembly can be assembled with the belleville springs of different specifications and models for use.

Description

Technical Field

[0001] The utility model belongs to the technical field of butterfly springs, and more specifically, particularly relates to a butterfly spring with an overload protection function. Background Art

[0002] Disc spring is a special spring that looks like a circular gasket. It can provide sufficient elastic extension by stacking a considerable number of disc springs. Because of its variable stiffness characteristics and compact installation, it is widely used in mechanical equipment industry, petroleum industry, automobile industry, aerospace industry and other fields.

[0003] The existing butterfly spring has no load limiting structure when in use. Since the butterfly spring bears static or dynamic loads acting in the axial direction at the upper inner edge and the lower outer edge, it is deformed after being compressed to generate an elastic load. In addition, there is no load limiting structure. When the butterfly spring is overloaded, it is easy for the butterfly spring to be excessively deformed and lose its elastic function. The stability is poor and the practicality is not high. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a butterfly spring with an overload protection function to solve the problem that the existing butterfly spring has no load limiting structure and the butterfly spring is easily excessively deformed and loses its elastic function when overloaded.

[0005] The purpose and effect of the butterfly spring with overload protection function of the utility model are achieved by the following specific technical means:

[0006] A butterfly spring with an overload protection function comprises a mounting assembly and a butterfly spring, wherein the mounting assembly comprises a mounting column and a positioning base, wherein the mounting column is fixedly mounted on the top of the positioning base, and the butterfly spring is plugged into the outside of the mounting column; the mounting assembly also comprises a force-bearing pressure cover, which is plugged into the top of the mounting column; a load-limiting assembly, wherein the load-limiting assembly comprises a regulating rod, a load-limiting seat and a locking block, wherein the top and bottom of the regulating rod are rotatably connected to the inside of the force-bearing pressure cover and the positioning base respectively, the load-limiting seat is plugged into the inside of the mounting column, and the locking block is plugged into the top of the regulating rod.

[0007] Furthermore, a track block is provided on the side of the load limiting seat, and a track groove is provided inside the mounting column, and the track block is inserted into the inside of the track groove.

[0008] Furthermore, a load-limiting stopper is provided inside the force-bearing pressure cover, and the load-limiting stopper is inserted into the inside of the track groove, and the load-limiting stopper is located at the top of the track stopper.

[0009] Furthermore, the outside of the rod body of the regulating rod is provided with threads, and the regulating rod is screwed to the inside of the load limiting seat through the rod body threads.

[0010] Furthermore, a locking top spring is provided on the top of the locking block, and two ends of the locking top spring respectively abut against the bottom of the locking block and the inside of the regulating rod.

[0011] Furthermore, a locking tooth block is provided on the side of the locking block, and a locking tooth groove is provided inside the mounting column. Under the action of the locking top spring, when the locking block is not pressed by external force, the locking tooth block is inserted into the locking tooth groove.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The load limiting component can limit the maximum load of the butterfly spring when it is in use. When the maximum load is reached, the original flexible support method of the butterfly spring for the external load is converted into a rigid support of the installation component, so that the overload load force will not act on the butterfly spring, effectively protecting the stable use of the butterfly spring, and preventing overload damage and failure. At the same time, the maximum load value controlled by the load limiting component can be freely adjusted and used, so that the installation component can be assembled and used with butterfly springs of different specifications and models, with strong flexibility, adaptability, stability and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0016] Figure 3 It is a structural schematic diagram of the utility model after the installation component is disassembled.

[0017] Figure 4 It is a structural schematic diagram of the utility model after the load limiting component is disassembled.

[0018] Figure 5 It is a schematic diagram of the internal structure of the utility model after the locking block is pressed.

[0019] Figure 6 This utility model Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 1. Installation assembly; 101. Installation column; 1011. Track groove; 1012. Locking tooth groove; 102. Force-bearing pressure cover; 1021. Load-limiting block; 103. Positioning base; 2. Load-limiting assembly; 201. Control rod; 202. Load-limiting seat; 2021. Track block; 203. Locking block; 2031. Locking top spring; 2032. Locking tooth block; 3. Butterfly spring. DETAILED DESCRIPTION

[0022] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0023] As attached Figure 1 To Attachment Figure 6 As shown:

[0024] Embodiment 1: The utility model provides a butterfly spring with an overload protection function, including an installation component 1 and a butterfly spring 3, the installation component 1 includes a mounting column 101 and a positioning base 103, the mounting column 101 is fixedly installed on the top of the positioning base 103, and the butterfly spring 3 is plugged into the outside of the mounting column 101; the installation component 1 also includes a force-bearing pressure cover 102, the force-bearing pressure cover 102 is plugged into the top of the mounting column 101; the load limiting component 2, the load limiting component 2 includes a regulating rod 201, a load limiting seat 202 and a locking block 203, the top and bottom of the regulating rod 201 are respectively rotatably connected to the inside of the force-bearing pressure cover 102 and the positioning base 103, the load limiting seat 202 is plugged into the inside of the mounting column 101, and the locking block 203 is plugged into the top of the regulating rod 201.

[0025] Among them, a track block 2021 is provided on the side of the load limiting seat 202, and a track groove 1011 is provided inside the mounting column 101, and the track block 2021 is inserted into the track groove 1011. This design enables the track groove 1011 to limit the moving trajectory of the load limiting seat 202 inside the mounting column 101 through the track block 2021, so that the load limiting seat 202 will not be skewed, twisted, or rotated during movement, causing the device to be stuck and fail, and it is stable to use.

[0026] Among them, a load-limiting block 1021 is provided inside the stress-bearing pressure cover 102, and the load-limiting block 1021 is inserted into the inside of the track groove 1011, and the load-limiting block 1021 is located at the top of the track block 2021. In use, when the installation component 1 is in normal use, that is, when the external load force received is less than the control value of the load-limiting component 2, the external load force can act on the butterfly spring 3 through the stress-bearing pressure cover 102, thereby realizing functions such as buffering and protection of the load force. In normal use, the deformation of the butterfly spring 3 under the action of the external load is not enough to cause the load-limiting block 1021 to be blocked from moving by the track block 2021, so that the stress-bearing pressure cover 102 can move on the installation column 101 under the action of the external load force to realize the compression or release of the butterfly spring 3, which is stable to use. When the external load force applied to the assembly 1 is greater than the control (protection) force of the load-limiting assembly 2, when the stressed pressure cover 102 moves downward under the action of the load, the track block 2021 can block the movement of the stressed pressure cover 102 through the load-limiting block 1021, so that the stressed pressure cover 102 cannot continue to move downward to compress the butterfly spring 3, which can effectively avoid the phenomenon of overload damage to the butterfly spring 3. At the same time, when the control (protection) function of the load-limiting assembly 2 is triggered, the load force can be directly transmitted to the positioning base 103 through the stressed pressure cover 102, the load-limiting block 1021, the track block 2021, and the regulating rod 201, so that the load force will not continue to be applied to the butterfly spring 3, further avoiding the phenomenon of overload damage to the butterfly spring 3, thereby improving the stability and practicality of the device.

[0027] Among them, a locking top spring 2031 is provided on the top of the locking block 203, and the two ends of the locking top spring 2031 are respectively against the bottom of the locking block 203 and the inside of the regulating rod 201, a locking tooth block 2032 is provided on the side of the locking block 203, and a locking tooth groove 1012 is provided inside the mounting column 101. Under the action of the locking top spring 2031, when the locking block 203 is not pressed by an external force, the locking tooth block 2032 is inserted into the inside of the locking tooth groove 1012. In use, the control of the load limiting component 2 ( The control (protection) force can be adjusted by the regulating rod 201, so that the installation component 1 can be assembled and used with butterfly springs 3 of different specifications and models, and the regulating rod 201 has a self-locking structure, that is, when the locking block 203 is not pressed by external force, the locking tooth block 2032 can be inserted into the locking tooth groove 1012 under the action of the locking top spring 2031, so as to lock the regulating rod 201 and make it unable to rotate, thereby avoiding the phenomenon of accidentally changing the control (protection) force of the load limiting component 2 during use.

[0028] Among them, the outside of the rod body of the regulating rod 201 is provided with a thread, and the regulating rod 201 is screwed into the inside of the load limiting seat 202 through the rod body thread. During use, when it is necessary to adjust the control (protection) force of the load limiting component 2, only the locking block 203 needs to be pressed and the regulating rod 201 needs to be rotated. After rotation, the regulating rod 201 can drive the load limiting seat 202 to move up and down inside the mounting column 101 through the rod body thread to change the use position. The change of the use position of the load limiting seat 202 changes the maximum downward movement distance of the force-bearing pressure cover 102 when the load limiting block 1021 is blocked by the track block 2021, that is, the maximum compression amount of the butterfly spring 3, and it has strong adaptability.

[0029] The specific usage and function of this embodiment are as follows:

[0030] In the present invention, the control and protection strength of the load limiting component 2 is adjusted according to the actual use situation. The control (protection) strength of the load limiting component 2 can be adjusted by the regulating rod 201, so that the installation component 1 can be assembled and used with butterfly springs 3 of different specifications and models, and the regulating rod 201 has a self-locking structure, that is, when the locking block 203 is not pressed by an external force, the locking tooth block 2032 can be inserted into the inside of the locking tooth groove 1012 under the action of the locking top spring 2031, so as to lock the regulating rod 201 so that it cannot rotate, thereby avoiding the phenomenon of accidentally changing the control (protection) strength of the load limiting component 2 during use. When it is necessary to adjust the control (protection) force of the load limiting component 2, it is only necessary to press the locking block 203 and rotate the regulating rod 201. After the locking block 203 is pressed, the locking tooth block 2032 will slip out of the locking tooth groove 1012. After the regulating rod 201 is rotated, it can drive the load limiting seat 202 to move up and down inside the mounting column 101 through the rod body thread to change the use position. The change in the use position of the load limiting seat 202 changes the maximum downward movement distance of the force-bearing pressure cover 102 when the load limiting block 1021 is blocked by the track block 2021, that is, the maximum compression amount of the butterfly spring 3. When the mounting component 1 is in normal use, that is, when it receives an external load force When the external load force is less than the control value of the load limiting component 2, the external load force can act on the butterfly spring 3 through the force-bearing cover 102, thereby realizing functions such as buffering and protection of the load force. In normal use, the deformation of the butterfly spring 3 under the external load is not enough to block the movement trajectory of the load limiting block 1021 by the track block 2021, so that the force-bearing cover 102 can move on the installation column 101 under the action of the external load force to achieve compression or release of the butterfly spring 3. When the external load force applied to the installation component 1 is greater than the control (protection) force of the load limiting component 2, the force-bearing cover 102 is under the load When it moves downward under the action of, the track block 2021 can block the movement of the stressed pressure cover 102 through the load limiting block 1021, so that the stressed pressure cover 102 cannot continue to move downward to compress the butterfly spring 3, which can effectively avoid the phenomenon of overload damage to the butterfly spring 3. At the same time, when the control (protection) function of the load limiting component 2 is triggered, the load force can be directly transmitted to the positioning base 103 through the stressed pressure cover 102, the load limiting block 1021, the track block 2021, and the regulating rod 201, so that the load force will not continue to be applied to the butterfly spring 3, further avoiding the phenomenon of overload damage to the butterfly spring 3.

[0031] In another embodiment, the number of butterfly springs 3 used and the installation method (such as upright installation, inverted installation, etc.) can be freely selected according to actual conditions. Due to the adjustable position design of the load limiter seat 202, the load limiter seat 202 is adjusted to a suitable position according to the number of butterfly springs 3 used and the installation method, and the load limiter assembly 2 can stably realize the load limiter protection function.

Claims

1. A butterfly spring with overload protection function, comprising: The invention relates to a mounting assembly (1) and a butterfly spring (3), wherein the mounting assembly (1) comprises a mounting column (101) and a positioning base (103), wherein the mounting column (101) is fixedly mounted on the top of the positioning base (103), and the butterfly spring (3) is plugged into the outside of the mounting column (101); the characteristic is that the mounting assembly (1) also comprises a force-bearing pressure cover (102), wherein the force-bearing pressure cover (102) is plugged into the top of the mounting column (101); and a load-limiting assembly (2), wherein the load-limiting assembly (2) comprises a regulating rod (201), a load-limiting seat (202) and a locking block (203), wherein the top and bottom of the regulating rod (201) are rotatably connected to the inside of the force-bearing pressure cover (102) and the positioning base (103), respectively, wherein the load-limiting seat (202) is plugged into the inside of the mounting column (101), and the locking block (203) is plugged into the top of the regulating rod (201).

2. A butterfly spring with overload protection function as claimed in claim 1, characterized in that: A track block (2021) is provided on the side of the load limiting seat (202), and a track groove (1011) is provided inside the mounting column (101), and the track block (2021) is plugged into the inside of the track groove (1011).

3. A butterfly spring with overload protection function as claimed in claim 2, characterized in that: A load-limiting stopper (1021) is provided inside the force-bearing pressure cover (102), and the load-limiting stopper (1021) is plugged into the inside of the track groove (1011), and the load-limiting stopper (1021) is located at the top of the track stopper (2021).

4. A butterfly spring with overload protection function as claimed in claim 3, characterized in that: The rod body of the regulating rod (201) is provided with threads on the outside, and the regulating rod (201) is screwed to the inside of the load limiting seat (202) via the rod body threads.

5. A butterfly spring with overload protection function as claimed in claim 4, characterized in that: A locking top spring (2031) is provided on the top of the locking block (203), and two ends of the locking top spring (2031) respectively abut against the bottom of the locking block (203) and the inside of the regulating rod (201).

6. A butterfly spring with overload protection function as claimed in claim 5, characterized in that: A locking tooth block (2032) is provided on the side of the locking block (203), and a locking tooth groove (1012) is provided inside the mounting column (101); under the action of the locking top spring (2031), when the locking block (203) is not pressed by an external force, the locking tooth block (2032) is inserted into the locking tooth groove (1012).

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