A cylinder liner taper detection device

Abstract

The utility model discloses a kind of cylinder liner taper detection devices, comprising: symmetrically distributed two side plates, two the inside fixedly connected with symmetrically distributed two supporting plates of side plate, the upper end of two supporting plate is contacted with cylinder liner body, the inner wall of the cylinder liner body is contacted with micrometer, the lateral wall of the micrometer is fixedly connected with symmetrically distributed two connecting plates, two the inside screw thread connection of connecting plate has mounting rod, the utility model is provided with micrometer, connecting plate and other components, symmetrically distributed side plate and supporting plate design form stable measurement frame, direct contact measurement is adopted using micrometer, ensure the accuracy of measurement data, different length cylinder liner can be adapted by adjusting mounting rod, compared with traditional multi-point measurement method, the device can realize fast positioning measurement, and device is simple, convenient to install and use, and the error that the stable frame can reduce deviation produces simultaneously.

Description

Technical Field

[0001] This utility model relates to the technical field of taper detection devices, specifically a cylinder liner taper detection device. Background Technology

[0002] In the field of engine manufacturing and repair, the cylinder liner is a core component, and its machining accuracy directly affects the engine's sealing performance, wear resistance, and service life. Among these, the cylinder liner's taper (i.e., the diameter difference between different axial sections of the inner bore) is one of the key quality indicators. The cylinder liner taper should typically be controlled between 0.025 mm and 0.35 mm; this range refers to the absolute taper, which is the direct difference between the upper and lower diameters of the cylinder liner's inner bore.

[0003] While existing devices can achieve high-precision three-dimensional measurement using a coordinate measuring machine, they are expensive, complex to operate, and prone to large errors and difficult positioning when manually inspected. Therefore, we need to propose a cylinder liner taper detection device. Utility Model Content

[0004] The purpose of this utility model is to provide a cylinder liner taper detection device, which is equipped with components such as a micrometer and a connecting plate, so as to facilitate stable detection of the cylinder liner taper and solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cylinder liner taper detection device, comprising:

[0007] Two symmetrically distributed side plates are provided, and two symmetrically distributed support plates are fixedly connected inside the two side plates. The upper ends of the two support plates contact the cylinder liner body, and the inner wall of the cylinder liner body contacts a micrometer. Two symmetrically distributed connecting plates are fixedly connected to the side wall of the micrometer. The two connecting plates are internally threaded with mounting rods. The upper ends of the mounting rods are fixedly connected to lifting blocks, and the lower ends of the lifting blocks are fixedly connected to two symmetrically distributed guide rods. The two guide rods are respectively fixedly connected to one of the connecting plates.

[0008] Preferably, the end of the mounting rod is threaded with a fixing nut, and the fixing nut contacts the connecting plate.

[0009] Preferably, a fixing plate is fixedly connected to the upper end of the two side plates, and the fixing plate is slidably connected to the mounting rod and the guide rod respectively, and the fixing plate is in contact with the lifting block.

[0010] Preferably, two symmetrically distributed clamping plates are in contact with the side wall of the cylinder liner body, and a moving assembly for controlling the clamping plate is provided on the side wall of one of the side plates.

[0011] Preferably, the moving component includes a bidirectional lead screw, a mounting plate, and a turntable;

[0012] Both clamping plates are internally threaded with bidirectional lead screws, and two symmetrically distributed mounting plates are fixedly connected to the side wall of one of the side plates. The two mounting plates are rotatably connected to the bidirectional lead screws, and one end of the bidirectional lead screw passes through the mounting plate and is fixedly connected to a turntable.

[0013] Preferably, each of the ends of the two clamping plates is fixedly connected to a slider, and a first sliding groove is provided inside one of the side plates, which is slidably connected to the two sliders respectively.

[0014] Preferably, two symmetrically distributed brush rings are fixedly connected to the side walls of both clamping plates, and the multiple brush rings are in contact with the bidirectional lead screw.

[0015] Preferably, the side wall of the other side plate is provided with a second sliding groove, which is slidably connected to the two clamping plates respectively.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention features a stable measuring frame formed by components such as a micrometer and connecting plate, along with symmetrically distributed side plates and support plates. The micrometer is used for direct contact measurement, ensuring the accuracy of the measurement data. The mounting rod can be adjusted to accommodate cylinder liners of different lengths. Compared to traditional multi-point measurement methods, this device enables rapid positioning and measurement. The device is simple, easy to install and use, and the stable frame reduces errors caused by offset. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 This is a partial structural schematic diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the clamping assembly of this utility model.

[0022] In the diagram: 1. Side plate; 2. Support plate; 3. Cylinder liner body; 4. Micrometer; 5. Connecting plate; 6. Mounting rod; 7. Fixing nut; 8. Lifting block; 9. Guide rod; 10. Fixing plate; 11. Clamping plate; 12. Slider; 13. First slide groove; 14. Double-acting lead screw; 15. Brush ring; 16. Mounting plate; 17. Turntable; 18. Second slide groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A cylinder liner taper detection device, comprising:

[0026] Two symmetrically distributed side plates 1 are fixedly connected to the inside of the two side plates 1. The upper ends of the two support plates 2 are in contact with the cylinder liner body 3. The inner wall of the cylinder liner body 3 is in contact with a micrometer 4. Two symmetrically distributed connecting plates 5 are fixedly connected to the side wall of the micrometer 4. The two connecting plates 5 are threadedly connected to the inside of the two connecting plates 5. The end of the mounting rod 6 is threadedly connected to a fixing nut 7. The fixing nut 7 is in contact with the connecting plate 5. The upper end of the mounting rod 6 is fixedly connected to a lifting block 8. The lower end of the lifting block 8 is fixedly connected to two symmetrically distributed guide rods 9. The two guide rods 9 are respectively fixedly connected to one of the connecting plates 5.

[0027] For example, the side plate 1 is made of high-strength aluminum alloy and the surface is anodized to enhance corrosion resistance. The inner sides of the two side plates 1 are fixedly connected with symmetrically distributed support plates 2 by bolts. The support plates 2 are used to stably support the cylinder liner body 3. The inner wall of the cylinder liner body 3 is in close contact with the probe of the micrometer 4. The micrometer 4 is fixed to the mounting rod 6 by two symmetrically distributed connecting plates 5. The mounting rod 6 is a chrome-plated steel threaded rod, and its end is locked to the connecting plate 5 by a fixing nut 7 to ensure that the axial position of the micrometer 4 is adjustable and stable. A lifting block 8 is welded to the upper end of the mounting rod 6. The lower part of the lifting block 8 is connected to the connecting plate 5 by two guide rods 9. The guide rods 9 ensure that the micrometer 4 does not wobble during the lifting process, thereby improving the measurement accuracy.

[0028] The upper ends of the two side plates 1 are fixedly connected to the fixing plates 10. The fixing plates 10 are slidably connected to the mounting rod 6 and the guide rod 9 respectively, and the fixing plates 10 are in contact with the lifting block 8.

[0029] For example, the fixing plate 10 is made of carbon steel and galvanized for rust prevention. A guide hole is provided in the middle of the fixing plate 10. The mounting rod 6 passes through the guide hole and forms a sliding fit with the fixing plate 10. The guide rod 9 also passes through the auxiliary guide hole of the fixing plate 10 to form a double guide structure.

[0030] Two symmetrically distributed clamping plates 11 are in contact with the side wall of the cylinder liner body 3, and a moving assembly for controlling the clamping plate 11 is provided on the side wall of one of the side plates 1.

[0031] For example, the sidewall of the cylinder liner body 3 is radially positioned by two symmetrically distributed clamping plates 11. The clamping plates 11 are made of polyoxymethylene (POM) material and have anti-slip textures on the surface to increase friction. A moving component is provided on the outer side of the left side plate 1 to drive the clamping plates 11 to move closer to or further away from the cylinder liner body 3 synchronously, ensuring that the cylinder liner body 3 does not move axially during the testing process.

[0032] The moving assembly includes a bidirectional lead screw 14, a mounting plate 16, and a turntable 17;

[0033] Both clamping plates 11 are internally threaded with bidirectional lead screws 14. Two symmetrically distributed mounting plates 16 are fixedly connected to the side wall of one of the side plates 1. The two mounting plates 16 are rotatably connected to the bidirectional lead screws 14 respectively. One end of the bidirectional lead screws 14 passes through the mounting plate 16 and is fixedly connected to a turntable 17.

[0034] For example, the bidirectional lead screw 14 adopts a trapezoidal thread and has a self-locking function. Its two ends are respectively machined with left-hand and right-hand threads, which cooperate with the threaded holes inside the two clamping plates 11. Two mounting plates 16 are fixed to the outer side of the left side plate 1 by bolts. The mounting plates 16 are embedded with deep groove ball bearings. The bidirectional lead screw 14 forms a rotatable connection with the mounting plates 16 through the bearings to ensure smooth rotation without jamming. The turntable 17 is welded to the end of the bidirectional lead screw 14 and has anti-slip grooves engraved on its surface to facilitate manual rotation by the operator. When the turntable 17 is rotated, the bidirectional lead screw 14 drives the two clamping plates 11 to move synchronously in opposite directions, realizing the rapid clamping and release of the cylinder liner body 3.

[0035] Both clamping plates 11 are fixedly connected to sliders 12 at their ends. One of the side plates 1 has a first groove 13 inside, which is slidably connected to the two sliders 12 respectively.

[0036] For example, the slider 12 is made of nylon material with a smooth surface to reduce sliding resistance. One of the side plates 1 has a first groove 13 machined inside. The first groove 13 has a T-shaped structure and forms a precise fit with the slider 12 to prevent the clamping plate 11 from deflecting during movement. The gap between the slider 12 and the first groove 13 is controlled within 0.05mm to ensure the movement accuracy of the clamping plate 11, thereby ensuring the positioning accuracy of the cylinder liner body 3.

[0037] Two brush rings 15 are fixedly connected to the side walls of the two clamping plates 11, and the multiple brush rings 15 are in contact with the bidirectional lead screw 14 respectively.

[0038] For example, the brush ring 15 is made of steel wire brush with a diameter of 0.2 mm and is arranged circumferentially on both sides of the bidirectional lead screw 14. When the bidirectional lead screw 14 rotates, the brush ring 15 can automatically remove impurities such as iron filings and oil stains from the thread surface, prevent the thread from jamming or wearing, and extend the service life of the bidirectional lead screw 14. The brush bristles of the brush ring 15 have moderate hardness, which can effectively clean without damaging the thread surface.

[0039] The other side plate 1 has a second sliding groove 18 on its side wall, and the second sliding groove 18 is slidably connected to the two clamping plates 11 respectively.

[0040] For example, the second slide groove 18 and the clamping plate 11 form a precision fit. The second slide groove 18 and the first slide groove 13 together constitute a double guide system to ensure that the two clamping plates 11 remain parallel during movement, and to avoid the cylinder liner body 3 tilting due to unilateral force. The surface of the second slide groove 18 is hardened to a hardness of HRC50 or higher, which effectively resists the wear caused by long-term friction of the slider 12.

[0041] Working principle: The cylinder liner body 3 to be tested is placed vertically on two support plates 2. The operator manually rotates the turntable 17 clockwise to drive the double-acting screw 14 to rotate. The left-hand and right-hand threads of the double-acting screw 14 drive the two clamping plates 11 to move synchronously towards each other along the first slide groove 13 and the second slide groove 18, respectively. The slider 12 at the end of the clamping plate 11 slides in the first slide groove 13 to ensure smooth movement without deflection. When the polyoxymethylene (POM) anti-slip texture on the side wall of the clamping plate 11 contacts the outer wall of the cylinder liner, the friction increases and the cylinder liner is radially locked. The trapezoidal thread of the double-acting screw 14 has a self-locking function. After the rotation stops, the position of the clamping plate 11 is fixed to prevent the cylinder liner from loosening during the test. During the movement, the brush ring 15 automatically cleans the iron filings and oil stains on the thread surface of the double-acting screw 14 to avoid jamming or wear.

[0042] Before fixing, the mounting rod 6 and guide rod 9 are moved by the lifting block 8, and the micrometer 4 is raised and lowered so that the end with the smaller diameter of the inner wall of the cylinder liner body 3 is in contact with the measuring head of the micrometer 4. The micrometer 4 is zeroed, the cylinder liner body 3 is fixed, and the position of the micrometer 4 is moved so that the micrometer 4 moves from one end of the cylinder liner body 3 to the other end. The data of the micrometer 4 at both ends of the cylinder liner body 3 are recorded, and the taper is calculated based on the data.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cylinder liner taper detecting device characterized by comprising: Include: Two side plates (1) are symmetrically distributed, two support plates (2) are fixedly connected inside the two side plates (1), the upper end of the two support plates (2) is in contact with a cylinder sleeve body (3), the inner wall of the cylinder sleeve body (3) is in contact with a micrometer (4), two connecting plates (5) are fixedly connected on the side wall of the micrometer (4), an installation rod (6) is threadedly connected inside the two connecting plates (5), a lifting block (8) is fixedly connected to the upper end of the installation rod (6), two guide rods (9) are fixedly connected to the lower end of the lifting block (8), and the two guide rods (9) are respectively fixedly connected with one of the connecting plates (5).

2. The cylinder liner taper detection device according to claim 1, characterized by The end of the installation rod (6) is threadedly connected with a fixing nut (7), and the fixing nut (7) is in contact with the connecting plate (5).

3. The cylinder liner taper detection device according to claim 1, characterized by The upper end of the two side plates (1) is fixedly connected with a fixed plate (10), the fixed plate (10) is slidably connected with the installation rod (6) and the guide rod (9), and the fixed plate (10) is in contact with the lifting block (8).

4. The cylinder liner taper detection device according to claim 1, characterized by The side wall of the cylinder sleeve body (3) is in contact with two clamping plates (11) symmetrically distributed, and the side wall of one of the side plates (1) is provided with a moving assembly for controlling the clamping plate (11).

5. The cylinder liner taper detecting device according to claim 4, wherein The moving assembly comprises a bidirectional screw rod (14), a mounting plate (16) and a rotating disc (17). Wherein, the inside of the two clamping plates (11) is threadedly connected with a bidirectional screw rod (14), the side wall of one of the side plates (1) is fixedly connected with two mounting plates (16) symmetrically distributed, the two mounting plates (16) are respectively rotatably connected with the bidirectional screw rod (14), and one end of the bidirectional screw rod (14) penetrates the mounting plate (16) and is fixedly connected with the rotating disc (17).

6. The cylinder liner taper detection device according to claim 5, characterized by The end of the two clamping plates (11) is fixedly connected with a sliding block (12), and the inside of one of the side plates (1) is provided with a first sliding groove (13), and the first sliding groove (13) is slidably connected with the two sliding blocks (12).

7. The cylinder liner taper detection device according to claim 6, characterized by The side wall of the two clamping plates (11) is fixedly connected with two brush rings (15) symmetrically distributed, and the plurality of brush rings (15) are respectively in contact with the bidirectional screw rod (14).

8. The cylinder liner taper detection device according to claim 5, characterized by The side wall of the other side plate (1) is provided with a second sliding groove (18), and the second sliding groove (18) is slidably connected with the two clamping plates (11).

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