Simple chain saw rebound testing machine

Abstract

The utility model discloses a simple chain saw rebound testing machine, which relates to the technical field of rebound testing and comprises a rack, a slide rail mounted on the rack, a movable insertion block slidably mounted on the slide rail and used for fixing wood, the movable insertion block is made of metal materials, an electromagnetic transmitter is mounted on the side edge of the slide rail, and a chain saw is rotatably mounted on the rack at one end of the slide rail. And an angle encoder is mounted on a saw chain of the chain saw. The device is simple in structure, the electromagnetic emitter can be used for rapidly emitting and optimizing the impact effect, the angle encoder can be used for directly reading the rebound angle, the effect is visual, the position of the balancing weight is adjustable so that the device can conveniently adapt to different chain saws, the weight can enable the movable insertion block to automatically reset, and the burden of workers is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of kickback testing, and particularly relates to a simple chain saw kickback testing machine. Background Art

[0002] When a chain saw encounters a rigid object, recoil energy will be generated. If this recoil energy exceeds the control ability of the operator, when the kickback angle is too large, it may cause physical or even life-threatening injuries to the operator. Therefore, before being put into use, the chain saw needs to be subjected to a kickback test.

[0003] Chinese Patent Publication No. CN202171555U discloses a chain saw kickback testing machine and its bracket. When testing the kickback angle of the chain saw, the specimen impacts the working chain saw, and the kinetic energy of the chain saw is converted into the potential energy of the test weight, thereby calculating the kickback angle of the chain saw.

[0004] However, the above device pulls the specimen to impact the chain saw through a weight, with a slow speed and possibly insufficient impact force; calculating the kickback angle of the chain saw by measuring the potential energy of the weight is rather cumbersome and may cause errors. Summary of the Utility Model

[0005] Aiming at the problems mentioned in the background art, the purpose of the utility model is to provide a simple chain saw kickback testing machine to solve the problems mentioned in the above background art.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A simple chain saw kickback testing machine includes a frame, on which a slide rail is installed. A movable insert block for fixing wood is slidably installed on the slide rail. The movable insert block is made of metal material. An electromagnetic emitter is installed on the side of the slide rail. A chain saw is rotatably installed on the frame at one end of the slide rail, and an angle encoder is installed on the saw chain of the chain saw.

[0008] As a preferred technical solution, a fixing bolt is installed on the movable insert block, and the inner wall of the fixing bolt is in contact connection with the wood.

[0009] As a preferred technical solution, a fixed pulley is installed at the top of the frame. A connecting line is installed on the movable insert block through a mounting ring, and the connecting line passes through the fixed pulley and is fixedly connected with a weight.

[0010] As a preferred technical solution, a set of fixed pulleys close to the chain saw is installed above the electromagnetic emitter.

[0011] As a preferred technical solution, it further includes a mounting rod. The chain saw is fixedly installed in the middle of the mounting rod and the saw chain of the chain saw faces the wood. The mounting rod is rotatably installed on the frame at one end of the slide rail, and counterweights are installed on both side rods of the mounting rod.

[0012] As a preferred technical solution, the saw chain is located directly above the central axis of the slide rail.

[0013] As a preferred technical solution, the counterweight is movably installed on both side rods of the mounting rod.

[0014] As a preferred technical solution, the mounting rod is in a U shape with the opening facing the slide rail. Connecting blocks are installed on both side rods of the mounting rod, rotating blocks are installed on the connecting blocks, and mounting plates are installed on both sides of the frame. The rotating blocks are rotatably connected to the mounting plates.

[0015] As a preferred technical solution, a balance block with a horizontal top surface and facing the wood is installed on the mounting plate, and a horizontal stop block is correspondingly installed on the rotating block. The bottom surface of the stop block is in contact connection with the top surface of the balance block.

[0016] As a preferred technical solution, a tray is movably installed on the frame below the slide rail.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the three-dimensional structure of the simple chain saw kickback tester proposed by the present utility model Figure 1 ;

[0019] Figure 2 is the front view of the simple chain saw kickback tester proposed by the present utility model;

[0020] Figure 3 is the three-dimensional structure of the simple chain saw kickback tester proposed by the present utility model Figure 2 ;

[0021] Figure 4 is the three-dimensional structure of the simple chain saw kickback tester proposed by the present utility model Figure 3 ;

[0022] Figure 5 is of the present utility model Figure 4 enlarged view of part A.

[0023] Reference numerals: 1, frame; 2, slide rail; 3, electromagnetic emitter; 4, movable insertion block; 41, fixing bolt; 5, wood; 6, fixed pulley; 7, connecting line; 8, weight; 9, mounting rod; 10, chain saw; 11, counterweight; 12, connecting block; 13, rotating block; 14, mounting plate; 15, stop block; 16, balance block; 17, tray; 18, angle encoder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar symbols represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0025] Embodiment 1

[0026] Referring to Figures 1 to 5 , the simple chain saw kickback tester described in this embodiment includes a frame 1. A slide rail 2 is installed on the frame 1. A movable insert block 4 for fixing a wood 5 is slidably installed on the slide rail 2. The movable insert block 4 is made of a metal material. An electromagnetic emitter 3 is installed on the side of the slide rail 2. Two groups of fixed pulleys 6 are installed at the top of the frame 1. A connecting line 7 is installed on the movable insert block 4 through a mounting ring. The connecting line 7 passes through the two groups of fixed pulleys 6 and is fixedly connected to a weight 8.

[0027] Preferably, a fixing bolt 41 is installed on the movable insert block 4, and the inner wall of the fixing bolt 41 is in contact connection with the wood 5.

[0028] Preferably, one group of fixed pulleys 6 away from the weight is installed above the electromagnetic emitter 3.

[0029] On both sides of the frame 1 at one end of the slide rail 2, mounting plates 14 are installed. It further includes a mounting rod 9 and a chain saw 10. The mounting rod 9 is in a U shape with the opening facing the slide rail 2. Connecting blocks 12 are installed on both side rods of the mounting rod 9. A rotating block 13 is fixedly connected to the connecting block 12. The rotating block 13 is rotatably connected to the mounting plate 14. The chain saw 10 is fixedly installed in the middle of the mounting rod 9. The saw chain of the chain saw 10 faces the wood 5 and an angle encoder 18 is installed on the saw chain of the chain saw 10. A set of counterweight blocks 11 are respectively installed on both side rods of the mounting rod 9.

[0030] Preferably, the saw chain is located directly above the central axis of the slide rail 2.

[0031] Preferably, the counterweight blocks 11 are movably installed on both side rods of the mounting rod 9.

[0032] Preferably, a balance block 16 with a horizontal top surface and facing the wood 5 is installed on the mounting plate 14. A horizontal stop block 15 is correspondingly installed on the rotating block 13. The bottom surface of the stop block 15 is in contact connection with the top surface of the balance block 16.

[0033] Preferably, a tray 17 is movably installed on the frame 1 below the slide rail 2.

[0034] Working principle: First, slide the mounting rod 9 to adjust the position of the counterweight 11 to adapt to different chain saws 10, adjust the balance of the chain saw 10 to make the saw chain horizontal, at this time, the block 15 and the balance block 16 are in contact, insert the wood 5 into the movable plug 4 and fix the wood 5 by the fixing bolt 41, control the movable plug 4 to be located between the electromagnetic transmitters 3, when the chain saw 10 is in horizontal balance, the coil of the electromagnetic transmitter 3 is energized to make the movable plug 4 quickly launch toward the chain saw 10, the wood 5 quickly collides with the saw chain, the saw chain rotates upward under the collision, and the angle encoder 18 measures the rebound angle of the saw chain; after the collision, the potential energy of the movable plug 4 is weakened, and under the drag of the gravity of the weight 8, the movable plug 4 returns to the electromagnetic transmitter 3 under the drag of the connecting line 7, and the tray 17 is used to receive impurities such as sawdust, waste oil, etc.

[0035] The device has a simple structure, but can be quickly launched through the electromagnetic transmitter 3 to optimize the impact effect. The angle encoder 18 can directly read the rebound angle, and the effect is intuitive. The position of the counterweight block 11 is adjustable to facilitate adaptation to different chain saws 10. The weight 8 can make the movable plug block 4 automatically reset to reduce the burden on workers.

[0036] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "linkage", "fixation" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral one; it may be a mechanical connection, an electrical connection or communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model may be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher level than the second feature in terms of horizontal height. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature in terms of horizontal height.

[0040] As mentioned above, the above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A simple chain saw rebound tester, comprising a frame (1), characterized in that: A slide rail (2) is installed on the frame (1), a movable plug block (4) for fixing wood (5) is slidably installed on the slide rail (2), the movable plug block (4) is made of metal material, an electromagnetic transmitter (3) is installed on the side of the slide rail (2), a chain saw (10) is rotatably installed on the frame (1) at one end of the slide rail (2), and an angle encoder (18) is installed on the saw chain of the chain saw (10).

2. The simple chain saw rebound testing machine according to claim 1, characterized in that: A fixing bolt (41) is installed on the movable plug block (4), and the inner wall of the fixing bolt (41) is in contact with the wood (5).

3. The simple chain saw rebound tester according to claim 1, characterized in that: A fixed pulley (6) is installed on the top of the frame (1), a connecting wire (7) is installed on the movable plug block (4) through a mounting ring, and the connecting wire (7) passes through the fixed pulley (6) and is fixedly connected to a weight (8).

4. The simple chain saw rebound testing machine according to claim 3, characterized in that: A set of fixed pulleys (6) close to the chain saw (10) is installed above the electromagnetic transmitter (3).

5. The simple chain saw rebound tester according to claim 1, characterized in that: The invention also comprises a mounting rod (9), a chain saw (10) fixedly mounted on the middle of the mounting rod (9) with the saw chain of the chain saw (10) facing the wood (5), the mounting rod (9) being rotatably mounted on the frame (1) at one end of the slide rail (2), and counterweights (11) being mounted on both sides of the mounting rod (9).

6. The simple chain saw rebound testing machine according to claim 5, characterized in that: The saw chain is located directly above the central axis of the slide rail (2).

7. The simple chain saw rebound tester according to claim 5, characterized in that: The counterweight block (11) is movably mounted on the two side rods of the mounting rod (9).

8. The simple chain saw rebound tester according to claim 5, characterized in that: The mounting rod (9) is in a U-shaped shape and has an opening facing the slide rail (2). Connecting blocks (12) are mounted on both sides of the mounting rod (9), and rotating blocks (13) are mounted on the connecting blocks (12). Mounting plates (14) are mounted on both sides of the frame (1), and the rotating blocks (13) are rotatably connected to the mounting plates (14).

9. The simple chain saw rebound testing machine according to claim 8, characterized in that: A balancing block (16) with a horizontal top surface facing the wood (5) is installed on the mounting plate (14), and a horizontal stopper (15) is correspondingly installed on the rotating block (13), and the bottom surface of the stopper (15) is in contact with the top surface of the balancing block (16).

10. The simple chain saw rebound tester according to claim 1, characterized in that: A tray (17) is movably mounted on the frame (1) below the slide rail (2).

Images