Engine crankshaft rotation detection mechanism

Abstract

The utility model belongs to the technical field of crankshaft detection, disclose a kind of engine crankshaft rotation detection mechanism, the technical scheme of utility model example, including workbench, the both sides of workbench top are respectively fixedly installed support, and the support on one side is fixedly installed motor, and the output of motor is fixedly installed first clamp, and the support on the other side is fixedly installed electric telescopic rod, and the movable end of electric telescopic rod is fixedly installed moving plate, and second clamp is rotatably installed on moving plate by bearing, and the stop slide groove is respectively set up on two supports, and the stop slide groove is respectively matched and installed stop slide block, and beam is equipped between two stop slide blocks, and the both sides of beam are respectively equipped with jack, and stop slide block can be inserted into corresponding jack respectively, by the device, each part of crankshaft can be detected simultaneously, improve detection efficiency, and both can be directly observed detection result, and detection result can be saved, improve the accuracy of detection.

Description

Technical Field

[0001] This utility model belongs to the field of crankshaft testing technology, specifically relating to an engine crankshaft rotation testing mechanism. Background Technology

[0002] The crankshaft is the main rotating mechanism of an engine. During crankshaft production, rotational testing is required to determine whether the crankshaft journals and end shafts are on the same axis. Existing testing equipment places the crankshaft on a workbench, rotates it, and uses measuring instruments to inspect it. However, crankshaft specifications vary depending on the number and arrangement of cylinders in the engine. Some existing devices can only test a single type of crankshaft, while others require sequential testing of each crankshaft journal and end shaft, resulting in low testing efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide an engine crankshaft rotation detection mechanism to solve the problems mentioned in the background art.

[0004] The technical solution adopted by this engine crankshaft rotation detection mechanism to solve its technical problem is as follows:

[0005] An engine crankshaft rotation detection mechanism is provided, including a worktable. Supports are fixedly mounted on both sides of the top surface of the worktable. A motor is fixedly mounted on one side of the support, and a first clamp is fixedly mounted on the output end of the motor. An electric telescopic rod is fixedly mounted on the other side of the support, and a movable plate is fixedly mounted on the movable rod. A second clamp is rotatably mounted on the movable plate via bearings. Limiting grooves are respectively formed on the two supports, and limiting sliders are respectively installed in the limiting grooves. A crossbeam is provided between the two limiting sliders, and insertion holes are provided on both sides of the crossbeam. The limiting sliders can be inserted into the corresponding insertion holes. Several slip rings are installed on the crossbeam, and detection mechanisms are fixedly mounted on the slip rings.

[0006] Furthermore, the detection mechanism includes a fixed block fixedly mounted on a slip ring, a vertical through groove on the fixed block for mounting a rack, a gear meshing with the rack on one side, a gear shaft fixedly mounted on the gear, the gear shaft rotatably mounted on a bearing seat, the bearing seat fixedly mounted on the fixed block, and a pointer fixedly mounted on the gear shaft.

[0007] Furthermore, a ring is fixedly installed on the bearing housing, the ring being coaxial with the gear shaft, and the ring having a scale.

[0008] Furthermore, a U-shaped frame is fixedly installed below the rack, and two horizontally arranged rollers are rotatably installed on the U-shaped frame.

[0009] Furthermore, springs are respectively fitted onto the racks, with one end of each spring fixedly connected to the corresponding rack and the other end of each spring fixedly mounted on the corresponding fixing block.

[0010] Furthermore, angle sensors are fixedly installed on the fixing blocks respectively, and the angle sensors are fixedly connected to the corresponding gear shafts respectively.

[0011] Furthermore, a slide rail is fixedly installed on the workbench, and a support slider is installed on the slide rail, with the support slider being fixedly connected to the moving plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides an engine crankshaft rotation detection mechanism. In use, one end of the crankshaft is fixed to a first clamp, and the other end of the crankshaft is fixed to a second clamp by adjusting the extension and retraction of the electric telescopic rod. According to the specifications of the crankshaft to be tested, a corresponding number of slip rings are fitted onto the crossbeam. Limiting sliders on both sides are inserted into the corresponding holes on the crossbeam and fitted into the corresponding limiting grooves. Moving the crossbeam moves the detection mechanism above the crankshaft, and starting the motor drives the crankshaft to rotate, thus enabling the crankshaft to be tested. This device allows for simultaneous testing of various parts of the crankshaft, improving testing efficiency.

[0014] 2. In the example of this utility model, an engine crankshaft rotation detection mechanism is used by contacting the rack with the corresponding crankshaft journal or end shaft below and observing the pointer direction. When the crankshaft is rotated, the pointer can be checked to see if each crankshaft journal and end shaft is on the same horizontal line.

[0015] 3. An engine crankshaft rotation detection mechanism according to this utility model allows for convenient reading of the pointer's direction through the scale on the ring.

[0016] 4. An engine crankshaft rotation detection mechanism according to this utility model uses two rollers to roll and contact the corresponding crankshaft journal or end shaft, which can facilitate the positioning of the crossbeam and the movement of the rack.

[0017] 5. An engine crankshaft rotation detection mechanism according to this utility model can easily make the rack abut against the corresponding crankshaft journal or end shaft by means of a spring, so as to make the detection more accurate.

[0018] 6. In an example of this utility model, an engine crankshaft rotation detection mechanism is provided, in which angle sensors are connected to a computer to take readings. By monitoring whether the readings change, the detection results can be better recorded and judged.

[0019] 7. An engine crankshaft rotation detection mechanism according to this utility model can conveniently support and guide the moving plate by means of a supporting slider. Attached Figure Description

[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 yes Figure 1 View from direction A;

[0023] Figure 3 yes Figure 1 A magnified view of part I.

[0024] In the diagram: 1. Workbench; 2. Support; 3. Motor; 4. First clamp; 5. Electric telescopic rod; 6. Moving plate; 7. Second clamp; 8. Limiting groove; 9. Limiting slider; 10. Crossbeam; 11. Slip ring; 12. Fixing block; 13. Rack; 14. Gear; 15. Gear shaft; 16. Bearing seat; 17. Pointer; 18. Ring; 19. U-shaped frame; 20. Roller; 21. Spring; 22. Angle sensor; 23. Slide rail; 24. Support slider. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Example 1:

[0028] like Figure 1 , Figure 2 and Figure 3As shown, this embodiment provides an engine crankshaft rotation detection mechanism, including a workbench 1. Supports 2 are fixedly installed on both sides of the top surface of the workbench 1. A motor 3 is fixedly installed on one side of the support 2, and a first clamp 4 is fixedly installed at the output end of the motor 3. An electric telescopic rod 5 is fixedly installed on the other side of the support 2, and a movable plate 6 is fixedly installed at the movable end of the electric telescopic rod 5. A second clamp 7 is rotatably installed on the movable plate 6 via bearings. (Specifically, in this embodiment, both the first clamp 4 and the second clamp 7 are three-jaw chucks.) Limiting grooves 8 are respectively opened on the two supports 2, and limiting sliders 9 are respectively installed in the limiting grooves 8. A crossbeam 10 is provided between the two limiting sliders 9. Insertion holes are provided on both sides of the crossbeam 10, and the limiting sliders 9 can be inserted into the corresponding insertion holes. Several slip rings 11 are installed on the crossbeam 10, and detection mechanisms are fixedly installed on the slip rings 11.

[0029] In this embodiment, the detection mechanism includes a fixed block 12 fixedly mounted on a slip ring 11. A vertical through slot is provided on the fixed block 12 to accommodate a rack 13. A gear 14 meshes with the rack 13 on one side. A gear shaft 15 is fixedly mounted on the gear 14. The gear shaft 15 is rotatably mounted on a bearing seat 16. The bearing seat 16 is fixedly mounted on the fixed block 12. A pointer 17 is fixedly mounted on the gear shaft 15.

[0030] In this embodiment, a ring 18 is fixedly installed on the bearing seat 16. The ring 18 is coaxial with the gear shaft 15 and has a scale.

[0031] In this embodiment, a U-shaped frame 19 is fixedly installed below the rack 13, and two horizontally arranged rollers 20 are rotatably installed on the U-shaped frame 19.

[0032] In this embodiment, springs 21 are respectively mounted on the racks 13. One end of each spring 21 is fixedly connected to the corresponding rack 13, and the other end of each spring 21 is fixedly mounted on the corresponding fixing block 12.

[0033] In this embodiment, angle sensors 22 are fixedly installed on the fixing block 12, and the angle sensors 22 are fixedly connected to the corresponding gear shafts 15.

[0034] In this embodiment, a slide rail 23 is fixedly installed on the workbench 1, and a support slider 24 is installed on the slide rail 23. The support slider 24 is fixedly connected to the moving plate 6.

[0035] In use, one end of the crankshaft is fixed to the first clamp 4, and the other end of the crankshaft is fixed to the second clamp 7 by adjusting the extension and retraction of the electric telescopic rod 5. According to the specifications of the crankshaft to be tested, the corresponding number of slip rings 11 are installed on the crossbeam 10. The limiting sliders 9 on both sides are inserted into the corresponding insertion holes of the crossbeam 10 and installed in the corresponding limiting slide grooves 8. The crossbeam 10 is moved so that the rack 13 moves above the crankshaft, and the two rollers 20 roll and contact the corresponding crankshaft journals or end shafts. The motor 3 is started to drive the crankshaft to rotate. During the rotation, it is possible to determine whether the crankshaft journals and end shafts are on the same axis by observing whether the pointer 18 rotates, and it is also possible to make a judgment on the computer based on the reading transmitted by the angle sensor 22. With this device, various parts of the crankshaft can be tested simultaneously, improving the testing efficiency. Furthermore, the test results can be observed intuitively and saved, improving the accuracy of the test.

[0036] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0037] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this utility model, the other technical features will not be described in detail here.

Claims

1. An engine crankshaft rotation detection mechanism, comprising a worktable (1), characterized in that, The workbench (1) has brackets (2) fixedly installed on both sides of its top surface. A motor (3) is fixedly installed on one side of the bracket (2), and a first clamp (4) is fixedly installed on the output end of the motor (3). An electric telescopic rod (5) is fixedly installed on the other side of the bracket (2), and a moving plate (6) is fixedly installed on the movable end of the electric telescopic rod (5). A second clamp (7) is installed on the moving plate (6) via a bearing. Limiting grooves (8) are opened on the two brackets (2), and limiting sliders (9) are installed in the limiting grooves (8). A crossbeam (10) is provided between the two limiting sliders (9). Insertion holes are provided on both sides of the crossbeam (10), and the limiting sliders (9) can be inserted into the corresponding insertion holes. Several slip rings (11) are installed on the crossbeam (10), and detection mechanisms are fixedly installed on the slip rings (11).

2. The engine crankshaft rotation detection mechanism according to claim 1, characterized in that, The detection mechanism includes a fixed block (12) fixedly installed on a slip ring (11). A vertical through groove is opened on the fixed block (12) and a rack (13) is installed in cooperation. A gear (14) meshes with the rack (13) on one side. A gear shaft (15) is fixedly installed on the gear (14). The gear shaft (15) is rotatably installed on a bearing seat (16). The bearing seat (16) is fixedly installed on the fixed block (12). A pointer (17) is fixedly installed on the gear shaft (15).

3. The engine crankshaft rotation detection mechanism according to claim 2, characterized in that, A ring (18) is fixedly installed on the bearing seat (16). The ring (18) is coaxial with the gear shaft (15) and has a scale.

4. The engine crankshaft rotation detection mechanism according to claim 3, characterized in that, U-shaped frames (19) are fixedly installed below the rack (13), and two horizontally arranged rollers (20) are rotatably installed on the U-shaped frames (19).

5. The engine crankshaft rotation detection mechanism according to claim 4, characterized in that, Springs (21) are respectively mounted on the racks (13). One end of each spring (21) is fixedly connected to the corresponding rack (13), and the other end of each spring (21) is fixedly mounted on the corresponding fixing block (12).

6. The engine crankshaft rotation detection mechanism according to claim 5, characterized in that, Angle sensors (22) are fixedly installed on the fixed block (12), and the angle sensors (22) are fixedly connected to the corresponding gear shafts (15).

7. The engine crankshaft rotation detection mechanism according to claim 1, characterized in that, A slide rail (23) is fixedly installed on the workbench (1), and a support slider (24) is installed on the slide rail (23). The support slider (24) is fixedly connected to the moving plate (6).

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