A rust-corroded nut cutting device
By combining a hydraulic drive assembly with a carbide cutting tool, efficient cutting and automatic resetting of rusted nuts are achieved, solving the problems of time-consuming, labor-intensive, and difficult resetting in existing devices, and improving cutting efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI BINCHANG WENJIAPO MINING IND CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-30
Smart Images

Figure CN224424401U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rust nut cutting technology, and in particular to a rust nut cutting device. Background Technology
[0002] In various industrial settings, such as petrochemical, power, and steelmaking enterprises, as well as outdoor work environments such as gardens and agriculture, equipment and machinery often rely on bolt assemblies to connect different structures. However, due to long-term exposure to humid, dusty, high-temperature, or corrosive environments, nuts are prone to rusting or corrosion. Rusty nuts are not only difficult to disassemble, but forced operation may also damage the nuts, bolts, and surrounding parts, leading to equipment failure and downtime, seriously affecting the progress of work, and may even cause safety accidents.
[0003] Existing splitting and cutting devices rely on manual pressure application to achieve the splitting and cutting operation. This process requires a lot of physical strength from the operator and is extremely time-consuming. Especially when dealing with large-sized or severely corroded nuts, multiple operations and prolonged pressure may be required to complete the splitting, which greatly reduces work efficiency. In addition, the resetting process of the splitting structure of existing splitting and cutting devices is often difficult after the splitting is completed. The resetting of some devices requires complicated manual operations, which not only increases the workload of the operator, but may also damage the splitting structure due to improper operation, further affecting the service life and subsequent use of the device. This inconvenience in resetting the splitting structure greatly reduces the continuity of the entire nut splitting process, which is also an important factor causing the inconvenience and low splitting efficiency of nut splitting and cutting devices. Utility Model Content
[0004] In order to overcome the problems of existing rust nut breaking devices, which are inconvenient to use and have low breaking efficiency due to the time-consuming and labor-intensive manual application of pressure and the difficulty in resetting the breaking structure, this utility model provides a rust nut breaking device.
[0005] The technical solution is as follows: A rusted nut breaking and cutting device includes a breaking and cutting blade assembly and a hydraulic drive assembly; the hydraulic drive assembly is provided at the rear end of the breaking and cutting blade assembly; the breaking and cutting blade assembly includes a cutting tube, a nut ring, a nut breaking and cutting tool, a push rod, and a spring; the hydraulic drive assembly includes a cylinder assembly sleeve and a cylinder.
[0006] Furthermore, a nut ring is provided at the front end of the cutter tube, and the nut ring is integrally formed with the cutter tube.
[0007] Furthermore, the inside of the cutter tube is equipped with a nut-breaking cutter; the lower end face of the nut-breaking cutter is provided with a movable groove, and the movable groove is integrally formed with the nut-breaking cutter, and the movable groove is slidably connected to the inner wall of the cutter tube.
[0008] Furthermore, a push rod is provided at the rear end of the nut-breaking cutter; a spring is provided on the outside of the push rod, and one end of the spring is fixedly connected to the push rod.
[0009] Furthermore, a hydraulic cylinder assembly sleeve is provided at the rear end of the cutter tube, and the hydraulic cylinder assembly sleeve is threadedly fixedly connected to the cutter tube.
[0010] Furthermore, a hydraulic cylinder is provided at the rear end of the hydraulic cylinder assembly sleeve, and the housing of the hydraulic cylinder is integrally formed with the hydraulic cylinder assembly sleeve.
[0011] Furthermore, the output end of the hydraulic cylinder is fixedly connected to the rear end of the push rod.
[0012] The beneficial effects are as follows: This utility model first places the nut ring onto the nut to be removed, ensuring that the nut is completely centered inside the nut ring, so that the two fit tightly together, avoiding misalignment during subsequent operations that would affect the cutting effect. After the nut ring is installed in place, the hydraulic power system is activated, which drives the oil cylinder to start working. The oil cylinder, as the power core of the entire cutting device, converts hydraulic energy into mechanical energy through the principle of hydraulic transmission, generating a powerful thrust. Under the thrust of the oil cylinder, the push rod moves smoothly forward along a preset track. One end of the push rod is connected to the piston of the oil cylinder, and the other end is fixedly installed with the nut cutting tool. As the push rod advances, the nut cutting tool also approaches the nut inside the nut ring. The nut cutting tool is made of a special hard alloy, with a sharp cutting edge and extremely high wear resistance and compressive strength. When the nut cutting tool contacts the nut, it begins to compress the nut under the continuous push of the push rod. As the compressive force increases, the nut gradually deforms and breaks under the action of the nut cutting tool. During the breaking and cutting process, the nut ring plays a crucial restraining role. It not only restricts the nut's movement under force but also disperses some of the compressive pressure, ensuring the safety and stability of the breaking and cutting process. After the nut is completely broken, the hydraulic power system is stopped, the nut ring is removed, and the broken nut fragments can be easily removed, thus successfully completing the nut removal and breaking work. It is important to note that throughout the entire operation, operators must strictly follow safety regulations, wear protective equipment, and constantly monitor the equipment's operating status to ensure the dismantling work is completed safely and efficiently.
[0013] By using a spring, the spring will reset the push rod that has lost its thrust, thus facilitating the feed and cutting of the tool for the next nut breaking operation. This eliminates the need for manual reset and adjustment, improving processing convenience. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0015] Figure 2 This is a three-dimensional cross-sectional view of the present invention.
[0016] Figure 3 This is a three-dimensional structural diagram of the cutting blade assembly of this utility model;
[0017] Figure 4 This is an exploded three-dimensional structural diagram of the cutting blade assembly of this utility model;
[0018] Figure 5 This is a schematic diagram of the three-dimensional structure of the cutter of this utility model.
[0019] In the attached diagram, the following are the reference numerals: 1. Cutter assembly; 2. Hydraulic drive assembly; 101. Cutter tube; 102. Nut ring; 103. Nut cutting tool; 104. Push rod; 105. Spring; 106. Movable groove; 201. Cylinder assembly sleeve; 202. Cylinder. Detailed Implementation
[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0021] Example 1
[0022] like Figures 1-5 As shown, a rust-corroded nut cutting device includes a cutting blade assembly 1 and a hydraulic drive assembly 2. The hydraulic drive assembly 2 is located at the rear end of the cutting blade assembly 1. The cutting blade assembly 1 includes a cutting tube 101, a nut ring 102, a nut cutting tool 103, a push rod 104, and a spring 105. The hydraulic drive assembly 2 includes a cylinder assembly sleeve 201 and a cylinder 202.
[0023] The front end of the cutter tube 101 is provided with a nut ring 102, and the nut ring 102 is integrally formed with the cutter tube 101.
[0024] The inside of the cutter tube 101 is provided with a nut-breaking cutter 103; the lower end face of the nut-breaking cutter 103 is provided with a movable groove 106, and the movable groove 106 is integrally formed with the nut-breaking cutter 103, and the movable groove 106 is slidably connected to the inner wall of the cutter tube 101.
[0025] A push rod 104 is provided at the rear end of the nut-breaking cutter 103; a spring 105 is provided on the outside of the push rod 104, and one end of the spring 105 is fixedly connected to the push rod 104.
[0026] First, place the nut ring 102 onto the nut to be removed, ensuring the nut is completely centered inside the nut ring 102, so that the two fit tightly together to prevent misalignment during subsequent operations that could affect the cutting effect. Once the nut ring 102 is in place, activate the hydraulic power system, which will drive the cylinder 202 to begin operation. The cylinder 202, as the power core of the entire cutting device, converts hydraulic energy into mechanical energy through hydraulic transmission, generating a powerful thrust. Under the thrust of the cylinder 202, the push rod 104 moves smoothly forward along a preset track. One end of the push rod 104 is connected to the piston of the cylinder 202, and the other end is fixedly mounted with the nut cutting tool 103. As the push rod 104 advances, the nut cutting tool 103 also approaches the nut inside the nut ring 102. The nut-breaking cutter 103 is made of a special hard alloy, with a sharp cutting edge and extremely high wear resistance and compressive strength. When the nut-breaking cutter 103 contacts the nut, it begins to compress the nut under the continuous push of the push rod 104. As the compressive force increases, the nut gradually deforms and breaks under the action of the nut-breaking cutter 103. During the breaking process, the nut ring 102 plays a crucial restraining role. It not only restricts the nut's movement direction under force but also disperses some of the compressive force, ensuring the safety and stability of the breaking process. After the nut is completely broken, the hydraulic power system is stopped, the nut ring 102 is removed, and the broken nut fragments can be easily removed, thus successfully completing the nut removal and breaking work. It is worth noting that throughout the entire operation, operators must strictly follow safety regulations, wear protective equipment, and constantly monitor the equipment's operating status to ensure the safe and efficient completion of the removal work.
[0027] Example 2
[0028] Based on Example 1, such as Figures 1-5 As shown, a hydraulic cylinder assembly sleeve 201 is provided at the rear end of the cutter tube 101, and the hydraulic cylinder assembly sleeve 201 is threadedly fixed to the cutter tube 101.
[0029] The rear end of the cylinder assembly sleeve 201 is provided with a cylinder 202, and the housing of the cylinder 202 is integrally formed with the cylinder assembly sleeve 201; the output end of the cylinder 202 is fixedly connected to the rear end of the push rod 104. Compared with the traditional manually driven nut cutter, the cutting drive efficiency of the cutter of this utility model is higher.
[0030] By setting the spring 105, the spring 105 will reset the push rod 104 that has lost its thrust, thereby facilitating the feed and cutting of the nut cutting tool 103 in the next cutting operation, without the need for manual reset and adjustment, thus improving the convenience of processing.
Claims
1. A rusted nut breaking device comprising a breaking knife assembly (1), characterized in that: It also includes a hydraulic drive assembly (2); the rear end of the cutting blade assembly (1) is provided with a hydraulic drive assembly (2); the cutting blade assembly (1) includes a cutter tube (101), a nut ring (102), a nut cutting tool (103), a push rod (104), and a spring (105); the hydraulic drive assembly (2) includes a cylinder assembly sleeve (201) and a cylinder (202).
2. A rusted nut breaking device according to claim 1, characterized in that: The front end of the cutter tube (101) is provided with a nut ring (102), and the nut ring (102) is integrally formed with the cutter tube (101).
3. The rust-breaking device for nuts according to claim 1, characterized in that: The inside of the cutter tube (101) is provided with a nut-breaking cutter (103); the lower end face of the nut-breaking cutter (103) is provided with a movable groove (106), and the movable groove (106) is integrally formed with the nut-breaking cutter (103), and the movable groove (106) is slidably connected to the inner wall of the cutter tube (101).
4. The rust-breaking device for nuts according to claim 3, characterized in that: A push rod (104) is provided at the rear end of the nut-breaking cutter (103); a spring (105) is provided on the outside of the push rod (104), and one end of the spring (105) is fixedly connected to the push rod (104).
5. A rust-breaking nut cutting device according to claim 1, characterized in that: The rear end of the cutter tube (101) is provided with a hydraulic cylinder assembly sleeve (201), and the hydraulic cylinder assembly sleeve (201) is threadedly fixed to the cutter tube (101).
6. A rust-breaking nut cutting device according to claim 5, characterized in that: The rear end of the cylinder assembly sleeve (201) is provided with a cylinder (202), and the housing of the cylinder (202) is integrally formed with the cylinder assembly sleeve (201).
7. A rust-breaking nut cutting device according to claim 6, characterized in that: The output end of the hydraulic cylinder (202) is fixedly connected to the rear end of the push rod (104).