Spring compression tool

Abstract

The application provides a spring compression tool, comprising a base configured to abut against a first end of a brake spring; a rod body having one end connected to the base, the rod body being used to pass through the brake spring, and a side wall of the rod body being provided with threads; and a connecting cylinder sleeved on the rod body and threadedly connected to the rod body, one end of the connecting cylinder being configured to extrude a second end of the brake spring. The brake spring can be compressed by using the spring compression tool, so that the brake spring can be prevented from being subjected to unbalanced load, and in turn, the brake spring can be prevented from being damaged and plastically deformed due to the unbalanced load.

Description

Technical Field

[0001] This application relates to the field of wind turbine maintenance equipment technology, and in particular to a spring compression tool. Background Technology

[0002] As a key component ensuring the safe operation of wind turbines, the tip braking system directly affects the stability and reliability of the entire unit under various operating conditions. With the increasing age of wind turbines, the braking springs in the tip braking system are more prone to fatigue, wear, and even breakage due to long-term exposure to alternating loads. To ensure the safe and stable operation of the unit, regular inspection, replacement, and maintenance of the tip braking springs are necessary.

[0003] Currently, brake springs are typically installed and removed manually using common mechanical tools such as large wrenches and pry bars to compress them. However, this compression process can easily lead to uneven compression, causing damage and plastic deformation to the brake spring. Utility Model Content

[0004] This application provides a spring compression tool that can prevent damage and plastic deformation of the brake spring caused by uneven compression during the compression process.

[0005] This application provides a spring compression tool, including:

[0006] The base is configured to abut against the first end of the brake spring;

[0007] The rod is connected to the base at one end and is used to pass through the brake spring. The side wall of the rod is threaded.

[0008] A connecting sleeve is fitted onto the rod and threadedly connected to the rod. The end of the connecting sleeve facing the base is configured as the second end of the compression brake spring.

[0009] In one embodiment, the spring compression tool further includes a pressure plate through which a rod is disposed, with one end of a connecting cylinder facing the base abutting against the pressure plate, and the side of the pressure plate opposite to the connecting cylinder configured to engage with a second end of a braking spring.

[0010] In one embodiment, a first abutting portion is provided on the side of the base facing the connecting cylinder, the first abutting portion being used to abut against a portion of the first end of the brake spring;

[0011] A second abutment is provided on the side of the pressure plate facing the base, and the second abutment is used to abut against a portion of the second end of the brake spring.

[0012] In one embodiment, the first abutting portion includes a plurality of first ribs, which are arranged radially and uniformly around the rod body.

[0013] The second abutment portion includes multiple second ribs, which are arranged radially and uniformly around the rod body.

[0014] In one embodiment, the spring compression tool further includes a washer through which the rod passes, and the washer is held between the pressure plate and the connecting cylinder.

[0015] In one embodiment, the connecting cylinder includes a cylinder body and a connecting rod, the cylinder body is sleeved on the rod body and threadedly connected to the rod body, and one end of the connecting rod is fixed to the outer wall of the cylinder body.

[0016] In one embodiment, the connecting rod is a telescopic rod.

[0017] In one embodiment, the connecting sleeve is a hexagonal nut.

[0018] In one embodiment, the rod body includes a smooth rod segment and a threaded segment connected in sequence. The end of the smooth rod segment away from the threaded segment is connected to the base, and the connecting sleeve is sleeved on the threaded segment and threadedly connected to the threaded segment.

[0019] In one embodiment, the spring compression tool further includes a controller, a pressure sensor, and an alarm, each mounted on a base. The pressure sensor is configured to abut against a first end of the brake spring, and the pressure sensor and the alarm are electrically connected to the controller.

[0020] The spring compression tool provided in this application includes a base, a rod, and a connecting cylinder. One end of the rod is connected to the base, and the side wall of the rod is threaded. During the compression of the brake spring, the rod can pass through the brake spring, causing the first end of the brake spring to abut against the base. The connecting cylinder is sleeved on the rod. Since the connecting cylinder is threaded to the rod, rotating the connecting cylinder allows it to move closer to the base. As the connecting cylinder rotates, the connecting cylinder and the base respectively compress the two ends of the brake spring, thus compressing the brake spring. Because the connecting cylinder moves along the axis of the rod to compress the brake spring, uneven loading of the brake spring can be avoided, thereby preventing damage and plastic deformation of the brake spring due to uneven loading. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a front view of the connection between the base and the rod provided in an embodiment of this application;

[0023] Figure 2 A side view of the connection between the base and the rod provided in an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the connection between the base and the rod provided in an embodiment of this application;

[0025] Figure 4 A front view of the connecting cylinder provided in an embodiment of this application;

[0026] Figure 5 A side view of the connecting cylinder provided in an embodiment of this application;

[0027] Figure 6 A top view of the connecting cylinder provided in an embodiment of this application;

[0028] Figure 7 This is a schematic diagram of the structure of the connecting cylinder provided in an embodiment of this application;

[0029] Figure 8 A front view of the pressure plate provided in an embodiment of this application;

[0030] Figure 9 A side view of the pressure plate provided in an embodiment of this application;

[0031] Figure 10 This is a schematic diagram of the structure of the pressure plate provided in the embodiments of this application;

[0032] Figure 11 This is a schematic diagram of the structure of the gasket provided in the embodiments of this application;

[0033] Figure 12 A schematic diagram showing the connection between the spring compression tool and the brake spring provided in the embodiments of this application;

[0034] Figure 13 This is a schematic diagram of the connection between the spring compression tool and the brake spring provided in the embodiments of this application.

[0035] Figure label:

[0036] 100. Base; 110. First protruding rib;

[0037] 200, rod body; 210, smooth rod section; 220, threaded section;

[0038] 300. Connecting cylinder; 310. Cylinder body; 320. Connecting rod;

[0039] 400, pressure plate; 410, second rib;

[0040] 500, gasket;

[0041] 600. Brake spring. Detailed Implementation

[0042] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0043] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0044] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0046] The blade tip braking spring is installed at the tip of the wind turbine blades. When the hydraulic system is depressurized, the spring's own elasticity pushes the blade tip to rotate, changing the aerodynamic shape of the blade and generating air braking force to achieve unit braking. The wind turbine's blade tip braking system adopts a "fail-safe" mechanism: hydraulic pressure (100bar–106bar) overcomes the spring tension to retract the blade tip; when the turbine stops, hydraulic pressure is released, the spring releases, and pushes the blade tip out to achieve pneumatic braking. To ensure the safe and stable operation of the wind turbine, the blade tip braking springs need to be inspected, replaced, and maintained regularly. During replacement and repair, the braking springs need to be compressed. In actual operation, due to the special installation position of the blade tip braking springs and their large preload, traditional manual methods are difficult to effectively compress them, making disassembly and installation extremely difficult. This not only consumes a lot of manpower and time but also poses a high safety risk.

[0047] Currently, brake springs are typically installed and removed manually using common mechanical tools such as large wrenches and pry bars, leveraging the principle of leverage to compress them. However, this compression process can easily lead to uneven compression, causing damage and plastic deformation of the brake spring. When inspecting, replacing, or repairing brake springs, an additional 15%-20% of the springs are required, resulting in economic losses.

[0048] To address the aforementioned problems, this application provides a spring compression tool comprising a base, a rod, and a connecting cylinder. One end of the rod is connected to the base, and the side wall of the rod is threaded. During the compression of the brake spring, the rod can pass through the brake spring, causing the first end of the brake spring to abut against the base. The connecting cylinder is fitted onto the rod; since the connecting cylinder is threaded to the rod, rotating the connecting cylinder allows it to move closer to the base. As the connecting cylinder rotates, the connecting cylinder and the base respectively compress the two ends of the brake spring, thus compressing the brake spring. Because the connecting cylinder moves along the axis of the rod to compress the brake spring, uneven loading of the brake spring can be avoided, thereby preventing damage and plastic deformation of the brake spring due to uneven loading.

[0049] The specific structure of the spring compression tool provided in the embodiments of this application will be described below with reference to the accompanying drawings.

[0050] Reference Figures 1 to 13As shown, this application embodiment provides a spring compression tool, including a base 100, a rod 200, and a connecting cylinder 300. The base 100 is configured to abut against a first end of a brake spring 600. Indicatively, the base 100 can be a plate-like structure, and the shape of this plate-like structure can be rectangular or circular, or a suitable shape. Optionally, the base 100 can be a rectangular plate-like structure to provide stable support. The base 100 can be made of high-strength alloy steel, giving it good rigidity and stability, and enabling it to withstand the pressure generated during the compression of the brake spring 600.

[0051] One end of the rod 200 is connected to the base 100. The rod 200 passes through the brake spring 600, and its sidewall is threaded. For example, the rod 200 is cylindrical and can be fixed to the base 100 by welding. The axis of the rod 200 is perpendicular to the plane of the base 100. The length of the rod 200 is greater than the length of the brake spring 600 to be compressed, preventing the second end of the brake spring 600 from extending beyond the end of the rod 200 away from the base 100 after the rod 200 has completely passed through it. Figures 1-3 As shown, the end of the rod 200 is fixed to the middle of the base 100, so that the base 100 has sufficient width around the rod 200, so that the side of the base 100 connected to the rod 200 can reliably abut against the first end of the brake spring 600.

[0052] The connecting sleeve 300 is sleeved on the rod 200 and threadedly connected to the rod 200. The end of the connecting sleeve 300 facing the base 100 is configured as the second end of the compression braking spring 600. Understandably, the inner wall of the connecting sleeve 300 has internal threads. When the connecting sleeve 300 is sleeved on the rod 200, rotating the connecting sleeve 300 allows it to move axially along the rod 200 to approach or move away from the base 100.

[0053] In one possible implementation, the outer diameter of the connecting cylinder 300 is larger than the diameter of the brake spring 600, so that the connecting cylinder 300 can reliably compress the brake spring 600 when it moves towards the base 100 along the axial direction of the rod 200. The connection method of the various components of the spring compression tool is flexible and easy to operate, which facilitates production assembly and subsequent maintenance and replacement of parts, and reduces the cost of use.

[0054] When the worker needs to compress the brake spring 600, first pass the rod 200 through the brake spring 600 until the first end of the brake spring 600 abuts against the base 100. At this point, the end of the rod 200 away from the base 100 extends beyond the brake spring 600. Then, fit the connecting sleeve 300 onto the rod 200, and while fixing the base 100, rotate the connecting sleeve 300 so that it moves closer to the base 100 along the axis of the rod 200 to compress the brake spring 600. During the compression process, the length of the brake spring 600 can be measured using a measuring tool such as a ruler to precisely control the amount of compression. Once the brake spring 600 is compressed to the preset length, it can be secured using fasteners such as wire for installation or removal. After installation or removal, remove the fasteners from the brake spring 600.

[0055] In related technologies, when the brake spring 600 is compressed, it is prone to slippage, which can cause impact injuries. The compression efficiency of the brake spring 600 is low, requiring multiple people to work together during the compression process, and the time taken for a single compression is greater than 40 minutes.

[0056] The spring compression tool provided in this embodiment can compress a high-tension brake spring 600. The spring compression tool is simple to manufacture, low in cost, and easy to install. It also features mechanical self-locking through the engagement between the threaded rod 200 and the connecting cylinder 300. During the compression of the brake spring 600 using the spring compression tool, in addition to preventing uneven loading of the spring, the base 100 and connecting cylinder 300 confine the brake spring 600 to the rod 200. The tight fit between the rod 200 and other components enhances the overall stability of the spring compression tool, preventing the brake spring 600 from slipping and thus avoiding impact injuries. Furthermore, the spring compression tool can be operated by a single person, making it easier and faster to compress the brake spring 600. The time required for a single person to compress the brake spring 600 using the spring compression tool is ≤10 minutes, which is 75% more efficient than traditional methods of compressing the brake spring 600. In addition, the spring compression tool has a simple structure, making it suitable for safe operation in confined spaces within high-altitude aircraft cabins, facilitating the compression of the brake spring 600 by personnel in narrow locations. The spring compression tool weighs less than 10kg, eliminating the need for external equipment and making it easy to carry.

[0057] In one embodiment, such as Figures 8-13 As shown, the spring compression tool also includes a pressure plate 400. A rod 200 passes through the pressure plate 400, and the end of the connecting cylinder 300 facing the base 100 abuts against the pressure plate 400. The side of the pressure plate 400 opposite to the connecting cylinder 300 is configured to engage with the second end of the brake spring 600.

[0058] For example, the pressure plate 400 is an annular plate structure with a through hole in its center, through which the rod 200 passes. Notably, the diameter of the through hole in the pressure plate 400 is smaller than the outer diameter of the connecting cylinder 300, ensuring that the connecting cylinder 300 can reliably push against the pressure plate 400. The outer diameter of the pressure plate 400 is larger than the diameter of the brake spring 600, and the diameter of the through hole in the pressure plate 400 is smaller than the diameter of the brake spring 600, ensuring that the pressure plate 400 can reliably push against the second end of the brake spring 600. The pressure plate 400 can be made of high-strength, high-precision alloy steel, and its surface undergoes a special heat treatment process to improve its hardness and wear resistance.

[0059] When compressing the brake spring 600 using a spring compression tool, after the rod 200 passes through the brake spring 600, the pressure plate 400 is first fitted onto the rod 200, and then the connecting cylinder 300 is fitted onto the rod 200. As the operator rotates the connecting cylinder 300, the connecting cylinder 300 pushes the pressure plate 400, which in turn compresses the second end of the brake spring 600.

[0060] In this embodiment, the pressure plate 400 compresses the second end of the brake spring 600, making the force on the brake spring 600 more uniform during compression, thereby improving the compression stability of the brake spring 600. Simultaneously, the design of the pressure plate 400 effectively prevents the brake spring 600 from shifting or tilting during compression, further enhancing operational safety and reliability. The diameter of the connecting cylinder 300 can be relatively small, facilitating the operator's rotation of the connecting cylinder 300. During the rotation of the connecting cylinder 300, the torque generated by the rotation is less likely to be transmitted to the brake spring 600, thus reducing the risk of damage to the brake spring 600 due to torque.

[0061] In one specific embodiment, the base 100 is provided with a first abutting portion on the side facing the connecting cylinder 300, the first abutting portion being used to abut against a portion of the first end of the brake spring 600.

[0062] Optionally, the first abutment is a protrusion extending from the main body of the base 100, and the side of the first abutment facing the connecting cylinder 300 abuts against the first end of the brake spring 600. In another possible implementation, the base 100 has a plurality of holes arranged in a ring array around the axis of the rod 200, and a first abutment is defined between two adjacent holes. The base 100 abuts against the first end of the brake spring 600 through the first abutment, reducing the contact area between the base 100 and the brake spring 600, thereby reducing the friction between the base 100 and the brake spring 600.

[0063] The pressure plate 400 is provided with a second abutment on the side facing the base 100, and the second abutment is used to abut against a portion of the second end of the brake spring 600.

[0064] Optionally, the second abutment is a protrusion extending beyond the main body of the pressure plate 400, and the side of the second abutment facing the base 100 abuts against the second end of the brake spring 600. In another possible implementation, the pressure plate 400 has a plurality of holes arranged in a ring array around the axis of the rod 200, with a second abutment defined between two adjacent holes. The pressure plate 400 abuts against the second end of the brake spring 600 through the second abutment, reducing the contact area between the pressure plate 400 and the brake spring 600, thereby reducing the friction between the pressure plate 400 and the brake spring 600.

[0065] In this embodiment, the first end of the brake spring 600 abuts against the first abutting part of the base 100, and the second end of the brake spring 600 abuts against the second end of the pressure plate 400. The friction between the brake spring 600 and the base 100 and the pressure plate 400 is small. Correspondingly, the resistance encountered by the operator when rotating the connecting cylinder 300 is small, which makes it easier for the operator to use a spring compression tool to compress the brake spring 600.

[0066] In one specific implementation, such as Figures 1-3 , Figures 8-10 as well as Figure 13 As shown, the first abutment portion includes a plurality of first ribs 110, which are arranged radially and uniformly around the rod body 200. Each first rib 110 is a rod-shaped structure and can be welded to the base 100. The number of first ribs 110 is not limited, such as... Figures 1-3 As shown, the number of first protrusions 110 can be three, and the included angle between two adjacent first protrusions 110 can be 120°. When the brake spring 600 is compressed using a spring compression tool, the side of the multiple first protrusions 110 facing the connecting cylinder 300 abuts against the first end of the brake spring 600.

[0067] The second abutment portion includes a plurality of second ribs 410, which are arranged radially and uniformly around the rod body 200. Each second rib 410 is a rod-shaped structure and can be welded to the pressure plate 400. The number of second ribs 410 is not limited, such as... Figures 1-3 As shown, the number of second ribs 410 can be three, and the included angle between two adjacent second ribs 410 can be 120°. When the brake spring 600 is compressed using a spring compression tool, the side of the plurality of second ribs 410 facing the base 100 abuts against the second end of the brake spring 600.

[0068] In this embodiment, the first end of the brake spring 600 abuts against a plurality of first protrusions 110, and the second end abuts against a plurality of second protrusions 410, reducing the friction between the brake spring 600 and the base 100 and the pressure plate 400. Furthermore, the plurality of first protrusions 110 create a gap between the first end of the brake spring 600 and the main body of the base 100, and the plurality of second protrusions 410 create a gap between the second end of the brake spring 600 and the main body of the pressure plate 400. These gaps facilitate the use of fasteners such as wire to secure the brake spring 600.

[0069] In one embodiment, such as Figures 11-13 As shown, the spring compression tool also includes a washer 500, with the rod 200 passing through the washer 500 and the washer 500 clamped between the pressure plate 400 and the connecting cylinder 300.

[0070] The washer 500 can be an annular sheet structure with a through hole in its center for the rod 200 to pass through. After the rod 200 passes through the brake spring 600, the pressure plate 400 and the washer 500 are sequentially fitted onto the rod 200. Finally, the connecting cylinder 300 is fitted onto the rod 200 and rotated. It is worth mentioning that the outer diameter of the washer 500 is larger than the inner diameter of the pressure plate 400, and the outer diameter of the pressure plate 400 is larger than the inner diameter of the washer 500, ensuring that the washer 500 can reliably abut against the pressure plate 400.

[0071] In this embodiment, the size of the pressure plate 400 can be selected according to the size of the brake spring 600. A shim 500 is provided between the connecting cylinder 300 and the pressure plate 400 to ensure that the connecting cylinder 300 can reliably drive the pressure plate 400 close to the base 100 during rotation.

[0072] In one embodiment, such as Figures 4-7 , Figure 12 and Figure 13 As shown, the connecting cylinder 300 includes a cylinder body 310 and a connecting rod 320. The cylinder body 310 is sleeved on the rod body 200 and threadedly connected to the rod body 200, and one end of the connecting rod 320 is fixed to the outer wall of the cylinder body 310.

[0073] The cylinder 310 has a cylindrical structure with internal threads on its inner wall. Rotating the cylinder 310 allows it to move along the axis of the rod 200. The axis of the connecting rod 320 can be perpendicular to the axis of the cylinder 310, meaning the connecting rod 320 extends laterally. For example, the outer wall of the cylinder 310 can be fixed to the end of the connecting rod 320 by welding. There can be one or two connecting rods 320; when there are two connecting rods 320, they are located on opposite sides of the cylinder 310.

[0074] With the above setup, the operator can hold the connecting rod 320 and rotate the connecting cylinder 300, making it convenient for the operator to use a spring compression tool to compress the brake spring 600.

[0075] In one possible implementation, the connecting rod 320 is a telescopic rod.

[0076] For example, the connecting rod 320 can adopt an inner and outer tube structure. The end of the inner tube is connected to the outer wall of the cylinder 310, and the outer tube is sleeved on the inner tube and can slide along the axis of the inner tube. The length of the connecting rod 320 can be adjusted by sliding the outer tube. A locking device can be provided between the inner tube and the outer tube. When the connecting rod 320 is adjusted to the preset length, it can be fixed by the locking device.

[0077] In this embodiment, the length of the connecting rod 320 can be adjusted as needed. In confined spaces, the length of the connecting rod 320 can be shortened to compress the brake spring 600. In spaces with ample room, the length of the connecting rod 320 can be extended to allow the operator to rotate the connecting cylinder 300.

[0078] In one embodiment, the connecting sleeve 300 is a hexagonal nut.

[0079] In other words, the connecting cylinder 300 adopts an external hexagonal design. When compressing the brake spring 600, an electric drive component or a hydraulic drive component, such as an electric wrench or a hydraulic wrench, can be used to connect to the connecting cylinder 300 to improve the compression efficiency of the brake spring 600.

[0080] In one embodiment, such as Figure 2 , Figure 3 , Figure 12 and Figure 13 As shown, the rod body 200 includes a smooth rod section 210 and a threaded section 220 connected in sequence. The end of the smooth rod section 210 away from the threaded section 220 is connected to the base 100. The connecting sleeve 300 is sleeved on the threaded section 220 and threadedly connected to the threaded section 220.

[0081] Schematic illustration: threads can be formed on the rod 200 by turning. The threads on the rod 200 define a threaded section 220, meaning the length of the threaded portion of the rod 200 is less than the overall length of the rod 200. The dimensions of the threaded section 220 can be set according to the dimensions of the brake spring 600, and are not uniquely limited here.

[0082] In this embodiment, while ensuring that the spring compression tool can reliably compress the brake spring 600, the length of the threaded portion of the rod 200 is set to be less than the overall length of the rod 200, which helps to reduce the processing cost of the rod 200 and thus reduce the overall cost of the spring compression tool.

[0083] In one possible implementation, the spring compression tool further includes a controller, a pressure sensor, and an alarm, each mounted on the base 100. The pressure sensor is configured to abut against a first end of the brake spring 600, and the pressure sensor and alarm are electrically connected to the controller.

[0084] For example, the pressure sensor can be a thin-film pressure sensor, which can be attached to the side of the base 100 facing the connecting cylinder 300. When the brake spring 600 is compressed using a spring compression tool, the first end of the brake spring 600 abuts against the pressure sensor. The amount of compression of the brake spring 600 can be obtained by measuring the pressure applied by the brake spring 600.

[0085] Optionally, the controller can set a preset pressure. When the pressure applied by the brake spring 600 to the pressure sensor reaches the preset pressure, the controller can control the alarm to sound.

[0086] The above settings can prevent the brake spring 600 from being damaged due to excessive compression.

[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A spring compression tool, characterized in that, include: The base is configured to abut against the first end of the brake spring; A rod, one end of which is connected to the base, is used to pass through the brake spring, and the side wall of the rod is provided with threads; A connecting sleeve is sleeved on the rod and threadedly connected to the rod. One end of the connecting sleeve facing the base is configured to compress the second end of the brake spring.

2. The spring compression tool according to claim 1, characterized in that, The spring compression tool further includes a pressure plate, the rod is disposed through the pressure plate, one end of the connecting cylinder facing the base abuts against the pressure plate, and the side of the pressure plate away from the connecting cylinder is configured to contact the second end of the brake spring.

3. The spring compression tool according to claim 2, characterized in that, The base is provided with a first abutting part on the side facing the connecting cylinder, and the first abutting part is used to abut against a portion of the first end of the brake spring; The pressure plate is provided with a second abutting part on the side facing the base, and the second abutting part is used to abut against a portion of the second end of the brake spring.

4. The spring compression tool according to claim 3, characterized in that, The first abutting part includes a plurality of first protruding ribs, which are arranged radially and uniformly around the rod body; The second abutment portion includes a plurality of second ribs, which are arranged radially and uniformly around the rod body.

5. The spring compression tool according to claim 2, characterized in that, The spring compression tool also includes a washer, through which the rod passes and is held between the pressure plate and the connecting cylinder.

6. The spring compression tool according to claim 1, characterized in that, The connecting cylinder includes a cylinder body and a connecting rod. The cylinder body is sleeved on the rod body and threadedly connected to the rod body. One end of the connecting rod is fixed to the outer wall of the cylinder body.

7. The spring compression tool according to claim 6, characterized in that, The connecting rod is a telescopic rod.

8. The spring compression tool according to claim 1, characterized in that, The connecting cylinder is a hexagonal nut.

9. The spring compression tool according to any one of claims 1-8, characterized in that, The rod body includes a smooth rod section and a threaded section connected in sequence. The end of the smooth rod section away from the threaded section is connected to the base. The connecting sleeve is sleeved on the threaded section and threadedly connected to the threaded section.

10. The spring compression tool according to any one of claims 1-8, characterized in that, The spring compression tool also includes a controller, a pressure sensor, and an alarm, which are respectively mounted on the base. The pressure sensor is configured to abut against the first end of the brake spring, and the pressure sensor and the alarm are respectively electrically connected to the controller.

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