Gas turbine crankshaft channeling quantity measuring device

Abstract

The utility model relates to the technical field of shaft channeling amount measurement, in particular to a gas turbine crankshaft channeling amount measuring device which comprises a workbench, supporting legs are arranged at the four corners of the bottom of the workbench, and non-slip mats are arranged at the bottoms of the supporting legs. The longitudinal section of the workbench is in an L shape, and a clamping mechanism capable of fixing and limiting crankshafts of different specifications is arranged on the rear side wall of the workbench. The bottom of the workbench is provided with a pushing mechanism at one end of the crankshaft, and the other end is provided with a measuring mechanism. According to the measuring device, the clamping mechanism can clamp and fix the crankshaft and can adapt to crankshafts of different specifications, the practicability of the device is improved, automatic measurement can be achieved under the cooperation of the pushing mechanism and the measuring mechanism, a result is obtained, manual operation is not needed, the measuring precision is improved, and the working efficiency is improved. And errors are reduced to a great extent.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft drift measurement, in particular to a combustion engine crankshaft drift measurement device. Background Art

[0002] ‌The amount of axial movement usually refers to the amount of movement of a mechanical component in the axial direction. A Chinese patent discloses an axial axial movement measuring device (authorization announcement number CN208887518U), including

[0003] The front cover, piston cylinder assembly, gasket layer, measuring device and vernier caliper, the top of the front cover is provided with a sleeve, the inner cavity of the front cover is provided with a middle cylinder step; the piston cylinder assembly includes a piston cylinder and a plane bearing, and the contact end of the plane bearing and the piston cylinder is provided with a gasket layer; the measuring device includes a triangular ferrule, a measuring rod and an adjusting rod, etc., and the connecting end of the adjusting rod and the measuring rod is provided with a triangular ferrule; the gasket layer is composed of gaskets stacked, and the thickness of the gasket layer is measured by a vernier caliper, and a reading display screen is provided on the vernier caliper. The shaft drift measuring device can measure the height of the plane bearing by measuring the height of the middle cylinder step and the ring in the front cover and the height of the gasket layer, thereby measuring the size of the shaft drift, and the measurement is simple, convenient and accurate.

[0004] Although the above patent realizes the measurement of shaft runout, it adopts manual measurement, which may cause large errors and its accuracy is not precise enough. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a crankshaft drift measurement device for a combustion engine, comprising a workbench, support legs are arranged at the four corners of the bottom of the workbench, and anti-slip pads are arranged at the bottom of the support legs;

[0006] The longitudinal section of the workbench is L-shaped, and a clamping mechanism capable of fixing and limiting crankshafts of different specifications is arranged on the rear side wall;

[0007] The bottom of the workbench is located at one end of the crankshaft and a pushing mechanism is arranged, and the other end thereof is arranged with a measuring mechanism.

[0008] Preferably: the clamping mechanism includes two fixing plates, both of which are installed on the rear side wall of the workbench, a screw rod is rotatably connected between the two fixing plates, a motor is installed at one end of the screw rod, and the motor is fixed to the rear side wall of the workbench through a motor frame.

[0009] Preferably: a side groove is provided on the rear side wall of the workbench, and two left-right symmetrical slide seats are slidably connected in the side groove, the rear end of the slide seat is sleeved on the screw rod and threadedly connected thereto, and the internal threads of the two slide seats are opposite.

[0010] Preferably: the front ends of the two slides are detachably mounted with clamping seats, the clamping seats are threadedly connected to the slides, a screw hole is provided inside the slide, a screw rod is provided at the rear end of the clamping seat, the screw rod is installed in the screw hole, and an axial hole is also provided on the clamping seat, which corresponds to the outer diameter of the shaft at both ends of the crankshaft.

[0011] Preferably: the pushing mechanism includes a hydraulic rod 1, which is fixedly installed at the bottom of the workbench, and its piston rod end is fixedly connected to a push plate, the bottom of the push plate is located in a bottom groove opened at the bottom of the workbench and fixed to the hydraulic rod 1, the push plate slides in the bottom groove, and a protective pad is provided on the upper part of the push plate close to the crankshaft.

[0012] Preferably: the measuring mechanism comprises a mounting plate, the bottom of which is fixed on the workbench, a hydraulic rod 2 is arranged on one side of the mounting plate close to the crankshaft, a fixing seat is installed at the end of the hydraulic rod 2, and a measuring instrument is arranged in the fixing seat.

[0013] Technical effects and advantages of the utility model:

[0014] The clamping mechanism in the measuring device of the utility model can clamp and fix the crankshaft and can adapt to crankshafts of different specifications, thereby increasing the practicability of the device. At the same time, with the cooperation of the pushing mechanism and the measuring mechanism, automatic measurement can be achieved and the result can be obtained without manual operation, thereby improving the measurement accuracy and greatly reducing the error. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a combustion engine crankshaft drift measurement device provided in an embodiment of the present application. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of a combustion engine crankshaft drift measurement device provided in an embodiment of the present application. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of a combustion engine crankshaft drift measurement device provided in an embodiment of the present application. Figure 3 ;

[0018] Figure 4 It is an exploded diagram of a combustion engine crankshaft drift measurement device provided in an embodiment of the present application;

[0019] Figure 5 It is an exploded view of a clamping mechanism in a combustion engine crankshaft drift measurement device provided in an embodiment of the present application.

[0020] In the figure:

[0021] 1. Workbench; 2. Support legs; 3. Clamping mechanism; 4. Crankshaft; 5. Pushing mechanism; 6. Measuring mechanism; 11. Side groove; 12. Bottom groove; 31. Fixed plate; 32. Screw; 33. Motor; 34. Sliding seat; 35. Screw hole; 36. Clamping seat; 37. Screw; 38. Shaft hole; 51. Hydraulic rod one; 52. Push plate; 53. Protective pad; 61. Mounting plate; 62. Hydraulic rod two; 63. Fixed seat; 64. Measuring instrument. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes. Example

[0023] See also Figure 1 to Figure 5 In this embodiment, a crankshaft drift measurement device for a combustion engine is provided, comprising a workbench 1, support legs 2 are arranged at the four corners of the bottom of the workbench 1, and anti-slip pads are arranged at the bottom of the support legs 2 to increase the stability of the device after placement. The longitudinal section of the workbench 1 is L-shaped, and a clamping mechanism 3 is arranged on the rear side wall thereof. The clamping mechanism 3 can clamp and fix the crankshaft 4 to be measured, and the clamping mechanism 3 can be adjusted to effectively clamp different crankshafts 4, and the crankshaft 4 is clamped and fixed in the clamping mechanism 3;

[0024] The bottom of the workbench 1 is provided with a pushing mechanism 5 at one end of the crankshaft 4, and a measuring mechanism 6 is provided at the other end thereof. When the measurement work is in progress, the clamping mechanism 3 clamps and fixes the crankshaft 4, and then the measuring end of the measuring mechanism 6 is in close contact with one end of the crankshaft 4, and then the pushing mechanism 5 moves to pressurize and push the other end of the crankshaft 4, so that the axis of the crankshaft 4 will move to one side of the measuring mechanism 6 under the action of pressure, and act on the measuring mechanism 6, and the movement amount is the amount of crosstalk, and the crosstalk will be directly displayed by the measuring mechanism 6, which is fast and convenient, does not require manual measurement, minimizes the error to the greatest extent, and makes the measurement more accurate;

[0025] Specifically, the clamping mechanism 3 includes a fixing plate 31, two fixing plates 31 are provided, and the fixing plates 31 are both installed on the rear side wall of the workbench 1. A screw rod 32 is rotatably connected between the two fixing plates 31, and a motor 33 is installed at one end of the screw rod 32. The motor 33 is fixed to the rear side wall of the workbench 1 through a motor frame. After the motor 33 is started, it can drive the screw rod 32 to rotate in the fixing plate 31;

[0026] A side groove 11 is provided on the rear side wall of the workbench 1. Two left-right symmetrical slide seats 34 are slidably connected in the side groove 11. The rear end of the slide seat 34 is sleeved on the screw rod 32 and is threadedly connected thereto. The internal threads of the two slide seats 34 are opposite. In this way, when the screw rod 32 rotates, the two slide seats 34 move closer to each other or move away from each other in the side groove 11, thereby adjusting the distance between the two to achieve fixed clamping of crankshafts 4 of different lengths. The front ends of the two slide seats 34 are detachably installed with clamping seats 36. The holder 36 is threadedly connected to the slide 34, so that the holder 36 can be easily disassembled. A screw hole 35 is provided inside the slide 34, and a screw rod 37 is provided at the rear end of the holder 36. The screw rod 37 is installed in the screw hole 35. In addition, an axial hole 38 is provided on the holder 36. The axial hole 38 corresponds to the outer diameter of the shaft at both ends of the crankshaft 4. Since the holder 36 can be disassembled, when the outer diameter of the shaft of the crankshaft 4 is different, different holders 36 can be selected according to actual conditions, thereby increasing the practicality of the device.

[0027] The pushing mechanism 5 includes a hydraulic rod 51, which is fixedly installed at the bottom of the workbench 1, and the piston rod end of the hydraulic rod 51 is fixedly connected to a push plate 52. The bottom of the push plate 52 is located in a bottom groove 12 opened at the bottom of the workbench 1 and is fixed to the hydraulic rod 51. The push plate 52 slides in the bottom groove 12. A protective pad 53 is provided on the upper part of the push plate 52 close to the crankshaft 4. The protective pad 53 plays a protective role when the push plate 52 interacts with the axis of the crankshaft 4 to avoid direct hard contact between the two.

[0028] During measurement, the hydraulic rod 1 51 drives the push plate 52 to move in the bottom groove 12, and it approaches the crankshaft 4. The push plate 52 presses against one end of the crankshaft 4, and the crankshaft 4 tends to move toward the measuring mechanism 6. The distance it moves is the amount of drift. After the measurement is completed, the hydraulic rod 1 51 extends, driving the push plate 52 away from the crankshaft 4.

[0029] The measuring mechanism 6 includes a mounting plate 61, the bottom of which is fixed on the workbench 1, a hydraulic rod 62 is arranged on the side of the mounting plate 61 close to the crankshaft 4, a fixing seat 63 is installed on the end of the hydraulic rod 62, and a measuring instrument 64 is arranged in the fixing seat 63; before measurement, the hydraulic rod 62 drives the fixing seat 63 to approach the end of the crankshaft 4, and at the same time, the measuring instrument 64 moves along, and the measuring end of the measuring instrument 64 contacts the end of the crankshaft 4, so that when the push plate 52 pushes the axis of the crankshaft 4, the movement of the axis will squeeze the measuring instrument 64, and then the amount of leakage is measured and displayed on the measuring instrument 64, which is automatically displayed for easy viewing.

[0030] The clamping mechanism 3 in the measuring device of the utility model can clamp and fix the crankshaft 4, and can adapt to crankshafts 4 of different specifications, thereby increasing the practicability of the device. At the same time, with the cooperation of the pushing mechanism 5 and the measuring mechanism 6, automatic measurement can be achieved and the result can be obtained without manual operation, thereby improving the measurement accuracy and greatly reducing the error.

[0031] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A device for measuring crankshaft drift of a combustion engine, comprising a workbench (1), wherein support legs (2) are provided at four corners of the bottom of the workbench (1), and anti-slip pads are provided at the bottoms of the support legs (2), characterized in that: The longitudinal section of the workbench (1) is L-shaped, and a clamping mechanism (3) capable of fixing and limiting the position of crankshafts (4) of different specifications is provided on the rear side wall thereof; A pushing mechanism (5) is arranged at one end of the crankshaft (4) at the bottom of the workbench (1), and a measuring mechanism (6) is arranged at the other end thereof.

2. A combustion engine crankshaft drift measurement device according to claim 1, characterized in that: The clamping mechanism (3) comprises a fixing plate (31), two fixing plates (31) are provided, and both fixing plates (31) are mounted on the rear side wall of the workbench (1). A screw rod (32) is rotatably connected between the two fixing plates (31), and a motor (33) is mounted on one end of the screw rod (32). The motor (33) is fixed to the rear side wall of the workbench (1) via a motor frame.

3. A combustion engine crankshaft drift measurement device according to claim 2, characterized in that: The workbench (1) has a side groove (11) on the rear side wall. Two left-right symmetrical slide seats (34) are slidably connected in the side groove (11). The rear ends of the slide seats (34) are sleeved on the screw rod (32) and threadedly connected thereto. The internal threads of the two slide seats (34) are opposite.

4. A combustion engine crankshaft drift measurement device according to claim 3, characterized in that: A clamping seat (36) is detachably mounted at the front ends of the two slide seats (34). The clamping seat (36) and the slide seat (34) are threadedly connected. A screw hole (35) is provided inside the slide seat (34). A screw rod (37) is provided at the rear end of the clamping seat (36). The screw rod (37) is installed in the screw hole (35). The clamping seat (36) is also provided with an axial hole (38). The axial hole (38) corresponds to the outer diameter of the shaft at both ends of the crankshaft (4).

5. The device for measuring crankshaft drift of a combustion engine according to claim 1, characterized in that: The pushing mechanism (5) comprises a hydraulic rod (51) which is fixedly mounted on the bottom of the workbench (1). The piston rod end of the hydraulic rod is fixedly connected to a push plate (52). The bottom of the push plate (52) is located in a bottom groove (12) provided at the bottom of the workbench (1) and is fixed to the hydraulic rod (51). The push plate (52) slides in the bottom groove (12). A protective pad (53) is provided on the upper part of the push plate (52) close to the crankshaft (4).

6. A combustion engine crankshaft drift measurement device according to claim 1, characterized in that: The measuring mechanism (6) comprises a mounting plate (61), the bottom of the mounting plate (61) being fixed on the workbench (1), a second hydraulic rod (62) being arranged on a side of the mounting plate (61) close to the crankshaft (4), a fixing seat (63) being installed at the end of the second hydraulic rod (62), and a measuring instrument (64) being arranged in the fixing seat (63).

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