Improved device for a tensioner hammer

Abstract

The utility model relates to a kind of tightening machine hammer knife improving device. Including hammer knife, the fixed seat for supporting hammer knife, the connecting column installed on the air hammer output end and the pin shaft for limiting hammer knife;Pin shaft is inserted in fixed seat opening place;Hammer knife is circular structure, and the mounting hole of hammer knife center is equipped with the pin shaft adaptation;Hammer knife is rotatably connected on pin shaft;Fixed seat is installed on connecting column. It is solved in the prior art scheme that hammer knife is processed when chute, due to the sliding friction force of tool and workpiece surface is larger, it is easy to cause the process of clamping knife to move forward and hammer to damage rotor, and this processing defect can directly affect the dynamic balance performance and service life of rotor, in long time continuous operation, fixed hammer knife is also prone to thermal deformation, further intensifies the technical problem of unstable processing quality.

Description

Technical Field

[0001] This utility model relates to the field of hammer cutters, and in particular to an improved device for a tensioner hammer cutter. Background Technology

[0002] In the field of machining, the surface treatment process of the rotor of a tensioner has a significant impact on the equipment's performance and service life. Traditional rotor surface groove machining typically uses fixed hammer cutters for impact forming, a method with several technical drawbacks. First, the fixed hammer cutter generates significant static friction when in contact with the rotor surface, making it difficult to control the surface roughness and creating localized high temperatures in the contact area, accelerating tool wear. Second, during continuous machining, metal debris easily accumulates in the machining area, affecting machining accuracy and posing safety hazards. Furthermore, traditional hammer cutter devices lack effective protective structures, and the metal splatter generated by high-speed impacts poses a safety threat to operators.

[0003] More importantly, when machining inclined grooves, traditional hammer cutters are prone to jamming due to the high sliding friction between the tool and the workpiece surface. This can cause the tool to move forward during hammering, damaging the rotor. Furthermore, this machining defect directly affects the rotor's dynamic balance and service life. During prolonged continuous operation, fixed hammer cutters are also prone to thermal deformation, further exacerbating the instability of machining quality. Utility Model Content

[0004] This application provides an improved device for a tensioner hammer cutter, which solves the technical problem in the prior art where, when machining inclined grooves, the large sliding friction between the cutter and the workpiece surface easily causes the cutter to jam and move forward during hammering, damaging the rotor. At the same time, this machining defect directly affects the dynamic balance performance and service life of the rotor. In long-term continuous operation, fixed hammer cutters are also prone to thermal deformation, further aggravating the instability of machining quality.

[0005] The technical solutions adopted in the embodiments of this application are as follows.

[0006] An improved device for a tensioner hammer includes a hammer, a fixed base for supporting the hammer, a connecting column mounted on the output end of a pneumatic hammer, and a pin for limiting the hammer. The pin is inserted into the opening of the fixed base. The hammer has a circular structure, and a mounting hole adapted to the pin is opened in the center of the hammer. The hammer is rotatably connected to the pin. The fixed base is mounted on the connecting column.

[0007] A further technical solution is as follows: the improved hammer blade device for the tensioner also includes baffles; baffles are installed at both ends of the fixed base; the directions of the two sets of baffles are perpendicular to the direction of the hammer blade.

[0008] A further technical solution is that the hammer blade is made of impact-resistant steel.

[0009] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. The innovative design of the rotating hammer cutter, consisting of a hammer cutter, fixed base, connecting column, and pin, completely transforms the traditional fixed hammer cutter's operation. During impact, the hammer cutter rotates freely, converting sliding friction into rolling friction and significantly reducing the coefficient of friction. This improvement not only results in a smoother, flatter machined surface but also significantly reduces heat buildup during processing, effectively extending tool life. Practical applications show that this rotating design is particularly suitable for grooving, ensuring the accuracy and consistency of groove dimensions. Secondly, the support structure formed by the fixed base and connecting column provides the entire device with extremely high stability. This rigid connection ensures effective transmission of impact force, avoids energy loss, and ensures that the hammer cutter's rotation axis remains in the correct position. The protective design of the baffles effectively solves the safety hazard of flying metal chips, providing reliable protection for operators. Two sets of vertically installed baffles form a complete protective barrier, blocking flying chips to the greatest extent possible without obstructing the operator's view. In terms of material selection, the impact-resistant steel hammer cutter exhibits excellent overall performance. This material not only possesses sufficient hardness and strength to withstand impact loads but also exhibits excellent corrosion resistance and wear resistance. In practical applications, the impact-resistant steel hammer cutter maintains consistently high machining quality over long periods, significantly reducing tool replacement frequency and maintenance costs. The precise fit between the pin and mounting hole ensures smooth hammer cutter rotation while preventing excessive radial runout, thus guaranteeing machining accuracy. Another significant advantage of this device is its adaptability. By adjusting the diameter and thickness of the hammer cutter, it can accommodate the machining needs of rotors of different specifications. For machining specially shaped inclined slots, only hammer cutters with the corresponding contours need to be replaced, greatly improving the equipment's versatility. Furthermore, the entire device has a simple and compact structure, is easy to install and maintain, and requires no special tools or skills for routine maintenance. From a process perspective, this improved device achieves a comprehensive improvement in machining quality. The uniform impact force generated by the rotating hammer cutter makes the inclined slot surface denser, reducing the formation of micro-cracks. At the same time, the reduced frictional resistance significantly reduces vibration during machining, which not only improves machining accuracy but also reduces equipment noise and improves the working environment. This quality stability is particularly important for mass production, ensuring consistent performance for each rotor. In terms of safety performance, the multiple protection designs of this device provide a reliable guarantee for safe production. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of an improved tensioning machine hammer knife device according to an embodiment of this utility model.

[0011] Figure 2 This is a side view of an improved tensioner hammer cutter device according to an embodiment of the present invention.

[0012] In the diagram: 1. Hammer cutter; 2. Fixing base; 3. Connecting column; 4. Pin; 5. Baffle. Detailed Implementation

[0013] This application provides an improved device for a tensioner hammer cutter, which solves the technical problem in the prior art where, when machining inclined grooves, the large sliding friction between the cutter and the workpiece surface easily causes the cutter to jam and move forward during hammering, damaging the rotor. At the same time, this machining defect directly affects the dynamic balance performance and service life of the rotor. In long-term continuous operation, fixed hammer cutters are also prone to thermal deformation, further aggravating the instability of machining quality.

[0014] The technical solution in this application embodiment is to solve the above problems, and the overall idea is as follows: To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0015] An improved device for the hammer blade of a tensioner, such as Figure 1 and Figure 2 As shown, it includes a hammer blade 1, a fixed base 2 for supporting the hammer blade 1, a connecting column 3 installed on the output end of the air hammer, and a pin 4 for limiting the hammer blade 1; the pin 4 is inserted into the opening of the fixed base 2; the hammer blade 1 has a circular structure, and the center of the hammer blade 1 has a mounting hole that matches the pin 4; the hammer blade 1 is rotatably connected to the pin 4; the fixed base 2 is installed on the connecting column 3.

[0016] The improved hammer cutter device for the tensioner also includes baffles 5; baffles 5 are installed at both ends of the fixed base 2; the directions of the two sets of baffles 5 are perpendicular to the direction of the hammer cutter 1.

[0017] Hammer blade 1 is made of impact-resistant steel.

[0018] The hammer cutter 1 adopts a circular design with a centrally machined mounting hole for mating with the pin 4, allowing it to be rotatably mounted on the fixed base 2 via the pin 4. The fixed base 2 is connected to the output end of the air hammer via a connecting column 3, forming a stable power transmission structure. Baffles 5 are also installed at both ends of the fixed base 2, their installation direction perpendicular to the rotation plane of the hammer cutter 1, providing effective safety protection. When the air hammer drive device operates, the hammer cutter 1 generates a rotational motion while impacting the rotor surface. This rotational motion significantly reduces the frictional resistance between the cutter and the workpiece surface. The entire device is made of impact-resistant steel, ensuring durability under high-speed impact conditions. This device is particularly suitable for precision machining of inclined grooves on the surface of a tensioner rotor, effectively improving machining quality and operational safety. A positioning pin is provided on the connecting column 3, securing the connecting column 3 to the output end of the air hammer in a fixed state.

[0019] Beneficial effects The use of a rotating hammer cutter 1, fixed base 2, connecting column 3, and pin 4 completely changes the working method of traditional fixed hammer cutters. During impact, the hammer cutter 1 can rotate freely, converting the original sliding friction into rolling friction, significantly reducing the coefficient of friction. This improvement not only makes the machined surface smoother and flatter but also significantly reduces heat accumulation during processing, effectively extending tool life. Practical applications show that this rotating design is particularly suitable for grooving, ensuring the accuracy and consistency of groove dimensions. Secondly, the support structure formed by the fixed base 2 and connecting column 3 provides extremely high stability to the entire device. This rigid connection ensures effective transmission of impact force, avoids energy loss, and ensures that the rotation axis of the hammer cutter 1 always remains in the correct position. The protective design of the baffle 5 effectively solves the safety hazard of flying metal chips, providing reliable protection for operators. Two sets of vertically installed baffles 5 form a complete protective barrier, blocking flying chips to the greatest extent possible without obstructing the operator's view. In terms of material selection, the impact-resistant steel hammer cutter 1 exhibits excellent comprehensive performance. This material not only possesses sufficient hardness and strength to withstand impact loads but also exhibits excellent corrosion resistance and wear resistance. In practical applications, the impact-resistant steel hammer cutter 1 maintains consistently high machining quality over long periods, significantly reducing tool replacement frequency and maintenance costs. The precise fit between the pin 4 and the mounting hole ensures smooth rotation of the hammer cutter 1 while preventing excessive radial runout, thus guaranteeing machining accuracy. Another significant advantage of this device is its adaptability. By adjusting the diameter and thickness of the hammer cutter 1, it can accommodate the machining requirements of rotors of different specifications. For machining inclined grooves with special shapes, only the hammer cutter 1 with the corresponding contour needs needs to be replaced, greatly improving the equipment's versatility. Furthermore, the entire device has a simple and compact structure, is easy to install and maintain, and requires no special tools or skills for routine maintenance. From a process perspective, this improved device achieves a comprehensive improvement in machining quality. The uniform impact force generated by the rotating hammer cutter 1 makes the inclined groove surface denser, reducing the generation of micro-cracks. At the same time, the reduced frictional resistance significantly reduces vibration during machining, which not only improves machining accuracy but also reduces equipment noise and improves the working environment. This quality stability is particularly important for mass production, ensuring consistent performance across each rotor. In terms of safety, the device's multiple protective features provide reliable assurance for safe production.

[0020] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0021] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An improved device for a tensioner hammer blade, characterized in that, It includes a hammer blade (1), a fixed base (2) for supporting the hammer blade (1), a connecting column (3) installed on the output end of the pneumatic hammer, and a pin (4) for limiting the hammer blade (1); the pin (4) is inserted into the opening of the fixed base (2); the hammer blade (1) has a circular structure, and the center of the hammer blade (1) has a mounting hole that matches the pin (4); the hammer blade (1) is rotatably connected to the pin (4); the fixed base (2) is installed on the connecting column (3).

2. The improved device for a tensioner hammer as described in claim 1, characterized in that, The improved device for the tensioner hammer also includes baffles (5); baffles (5) are installed at both ends of the fixed base (2); the directions of the two sets of baffles (5) are perpendicular to the direction of the hammer (1).

3. The improved device for a tensioner hammer blade as described in claim 2, characterized in that, The hammer (1) is made of impact-resistant steel.

Images