Sliding type detection module for coaxiality of crankshaft of internal combustion engine

Abstract

The utility model relates to a slippage type detection module for coaxiality of a crankshaft of an internal combustion engine. The crankshaft part is mounted on the base; the sliding plate is laid in the length direction of the crankshaft part; the bearing plate is connected to the sliding plate in a sliding manner and can slide along the track of the sliding plate under the driving of an external force so as to continuously detect multiple sections of main journals; the supporting piece is vertically mounted above the bearing plate; and the detection piece is used for detecting the main journal, and the detection piece is connected with the supporting piece in a sliding mode and can be driven by external force to ascend and descend along the track of the supporting piece. According to the utility model, the detection piece is driven to slide along the track of the sliding plate and is matched with the lifting of the detection piece, so that multiple sections of main journals can be continuously detected, and the detection efficiency is improved; and meanwhile, through the arrangement of a limiting piece and a spring, the output motor can be extruded, and a trend force facing one side of the helical rack is provided, so that the meshing effect between the helical gear and the helical rack is ensured, the tooth skipping phenomenon is avoided, and the transmission stability is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of crankshaft detection, and particularly relates to a coaxiality sliding detection module for a crankshaft of an internal combustion engine. Background Art

[0002] The crankshaft is composed of main journals, crank throws and connecting rod journals that are alternately connected. During the daily operation of the internal combustion engine, the crankshaft is subjected to the combined effects of the centrifugal force of the rotating mass, the periodically changing gas pressure, the reciprocating inertia force and its torque. Therefore, the coaxiality of the main journals needs to be inspected regularly to avoid failures during actual operation. However, since a crankshaft has multiple main journals, how to conduct continuous inspections during regular inspections is a technical problem that needs to be solved. Utility Model Content

[0003] The utility model aims at solving the problems in the prior art and provides a sliding detection module for the coaxiality of the crankshaft of an internal combustion engine. The specific technical solution is as follows:

[0004] Internal combustion engine crankshaft coaxiality sliding detection module, including:

[0005] Base;

[0006] A crankshaft member, mounted on the base;

[0007] A slide plate is laid along the length direction of the crankshaft member;

[0008] A bearing plate is slidably connected to the slide plate and driven by an external force to slide along the slide track so as to continuously detect multiple main journal sections;

[0009] A support member, vertically mounted above the bearing plate;

[0010] And a detection member, used for detecting the main shaft journal, the detection member is slidably connected with the support member and can be lifted and lowered along the track of the support member when driven by an external force.

[0011] As a further technical solution of the utility model, it also includes a bearing plate installed on the skateboard, an output motor is installed on the upper surface of the bearing plate, an output end of the output motor extends downward and passes through the bearing plate, and the output end of the output motor is connected to a bevel gear;

[0012] A helical rack is connected above the slide plate and is arranged along the length direction of the slide plate, and the helical rack is meshed with the helical gear.

[0013] As a further technical solution of the utility model, the slide plate has at least two groups of convex strips arranged at intervals, and concave strips corresponding to the convex strips are connected below the bearing plate, and the concave strips are slidably connected to the convex strips.

[0014] As a further technical solution of the utility model, a limiting member is connected to the bearing plate, the limiting member is "U"-shaped and surrounds and fits outside the output motor, and the opening end of the limiting member faces the bevel rack.

[0015] As a further technical solution of the utility model, a spring is provided on the inner side wall of the limiting member at one end away from the helical rack, and the spring is in a compressed state to press the helical gear toward the helical rack.

[0016] The beneficial effects of the utility model are as follows:

[0017] (1) In the present application, by driving the detection member to slide along the track of the slide plate and coordinating its own lifting and lowering, multiple sections of the main shaft neck can be continuously detected, thereby improving the detection efficiency.

[0018] (2) In the present application, by setting the limiter and the spring, the output motor can be squeezed and a tendency force toward the helical rack can be provided, thereby ensuring the meshing effect between the helical gear and the helical rack, avoiding the tooth jumping phenomenon, and ensuring the stability of the transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structural schematic diagram of the internal combustion engine crankshaft coaxiality sliding detection module is shown;

[0020] Figure 2 A schematic diagram of the structure of a slide plate and a support member is shown;

[0021] Figure 3 A schematic diagram of the structure of a slide plate, a load-bearing plate and a support member is shown;

[0022] Figure 4 A schematic structural diagram of a load-bearing plate is shown;

[0023] Figure 5 Shows Figure 4 Schematic diagram of the structure at AA in the middle;

[0024] Figure 6 Shows Figure 2 Enlarged structural diagram at A in the middle.

[0025] Legend:

[0026] 100, base; 200, crankshaft; 300, slide plate; 310, bevel rack; 320, convex strip; 400, bearing plate; 410, output motor; 420, bevel gear; 430, concave strip; 440, limiter; 450, spring; 460, cover; 500, support member; 600, detection member. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0028] The crankshaft of an internal combustion engine is composed of a main journal, a crank throw and a connecting rod journal that are alternately connected. During the daily operation of the internal combustion engine, the crankshaft is subjected to the combined effects of the centrifugal force of the rotating mass, the periodically changing gas pressure, the reciprocating inertia force and its torque. Therefore, the coaxiality of the main journal needs to be inspected regularly to avoid failures during actual operation. However, since there are multiple main journals on a crankshaft, how to conduct continuous inspections during the regular inspection process is a technical problem that needs to be solved at present.

[0029] In view of the above technical problems, the present application provides a crankshaft coaxiality sliding detection module for an internal combustion engine. Figure 1 The overall structural schematic diagram of the internal combustion engine crankshaft coaxiality sliding detection module is shown; Figure 2 A schematic structural diagram of a slide plate 300 and a support member 500 is shown; Figure 3 A schematic structural diagram of a slide plate 300, a load-bearing plate 400 and a support member 500 is shown; Figure 1-Figure 3 The internal combustion engine crankshaft coaxiality sliding detection module includes:

[0030] A base 100 is used to carry the crankshaft;

[0031] The crankshaft 200 is mounted on the base 100;

[0032] The slide plate 300 is laid along the length direction of the crankshaft;

[0033] The bearing plate 400 is slidably connected to the slide plate 300 and driven by an external force to slide along the track of the slide plate 300 to continuously detect multiple main journal sections;

[0034] The support member 500 is vertically mounted above the carrying plate 400;

[0035] The detection member 600 is used to detect the main shaft journal. The detection member 600 is slidably connected to the support member 500 and can be driven by an external force to rise and fall along the track of the support member 500.

[0036] During use, a power source is provided for the sliding of the supporting plate 400 along the track of the slide plate 300 and the sliding of the detection member 600 along the track of the support member 500, and the supporting plate 400 is driven to slide along the track of the slide plate 300 until it is located on the same longitudinal line as the main shaft neck to be detected. At this time, the detection member 600 is driven to slide along the track of the support member 500 until it reaches the detection position. After the detection is completed, the detection member 600 is driven again to rise and reset along the track of the support member 500. By repeating the above steps, multiple sections of main shaft necks can be continuously detected. In this application, by driving the detection member 600 to slide along the track of the slide plate 300 and coordinating its own lifting and lowering, multiple sections of main shaft necks can be continuously detected, thereby improving the detection efficiency.

[0037] Figure 4 shows a schematic structural diagram of a carrier plate 400; Figure 5 Shows Figure 4 Schematic diagram of the structure at AA in the middle; Figure 6 Shows Figure 2 The enlarged structural diagram at A in the middle; Figure 4-Figure 6 In the embodiment, the internal combustion engine crankshaft coaxiality sliding detection module further includes a carrier plate 400 mounted on the slide plate 300, an output motor 410 is mounted on the upper surface of the carrier plate 400, an output end of the output motor 410 extends downward and passes through the carrier plate 400, and a bevel gear 420 is connected to the output end of the output motor 410;

[0038] A bevel rack 310 is connected to the top of the slide plate 300 and is arranged along the length direction of the slide plate 300 . The bevel rack 310 is meshed with the bevel gear 420 .

[0039] During use, the output motor 410 is started, and its output end drives the bevel gear 420 to rotate. Through the meshing of the output motor 410 and the bevel gear 420, the supporting plate 400 can slide along the track of the bevel rack 310 to drive the detection member 600 to slide on the horizontal plane.

[0040] It should be noted that the support member 500 and the detection member 600 may also adopt this driving method, which will not be described in detail here.

[0041] Continue to see Figure 4-6 The slide plate 300 has at least two groups of convex strips 320 arranged at intervals, and the lower part of the supporting plate 400 is connected with concave strips 430 corresponding to the convex strips 320, and the concave strips 430 are slidably connected with the convex strips 320.

[0042] During use, on one hand, at least the cooperation between the concave strips 430 and the convex strips 320 can form support for the carrying plate 400 , and on the other hand, the sliding of the concave strips 430 along the tracks of the convex strips 320 can ensure the stability of the carrying plate 400 during movement.

[0043] It should be noted that the mating surface between the concave strip 430 and the convex strip 320 may be in a dovetail shape.

[0044] Continue to see Figure 5 A limiting member 440 is connected to the bearing plate 400 . The limiting member 440 is U-shaped and surrounds and fits outside the output motor 410 . The opening end of the limiting member 440 faces the bevel rack 310 .

[0045] During use, the “U”-shaped limiter 440 can limit the three directions of the output motor 410 to prevent the output motor 410 from vibrating and deviating to only one side of the helical rack 310 , thereby preventing the helical gear 420 from being disengaged from the helical rack 310 .

[0046] Continue to see Figure 5 A spring 450 is provided on the inner side wall of the end of the limiting member 440 away from the helical rack 310 . The spring 450 is in a compressed state to press the helical gear 420 toward the helical rack 310 .

[0047] During use, since the limiter 440 is in a compressed state, it squeezes the output motor 410 and provides a tendency force toward the side of the bevel rack 310, thereby ensuring the meshing effect between the bevel gear 420 and the bevel rack 310, avoiding tooth jumping, and ensuring the accuracy of transmission.

[0048] See also Figure 5 A cover body 460 is provided above the supporting plate 400 to protect the output motor 410 .

[0049] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. An internal combustion engine crankshaft coaxiality sliding detection module, characterized in that: include: Base (100); A crankshaft member (200) is mounted on the base (100); A slide plate (300) is laid along the length direction of the crankshaft member (200); A bearing plate (400) is slidably connected to the slide plate (300) and driven by an external force to slide along the track of the slide plate (300) to continuously detect multiple sections of main journals; A support member (500) is vertically mounted above the carrying plate (400); And a detection member (600) for detecting the main shaft journal, wherein the detection member (600) is slidably connected to the support member (500) and can be driven by an external force to rise and fall along the track of the support member (500).

2. The internal combustion engine crankshaft coaxiality sliding detection module according to claim 1, characterized in that: It also includes a carrier plate (400) mounted on the skateboard (300), an output motor (410) being mounted on the upper surface of the carrier plate (400), an output end of the output motor (410) extending downward and passing through the carrier plate (400), and a bevel gear (420) being connected to the output end of the output motor (410); A bevel gear rack (310) is connected above the slide plate (300) and is arranged along the length direction of the slide plate (300), and the bevel gear rack (310) is meshed with the bevel gear (420).

3. The internal combustion engine crankshaft coaxiality sliding detection module according to claim 1 or 2, characterized in that: The slide plate (300) has at least two groups of convex strips (320) arranged at intervals, and a concave strip (430) corresponding to the convex strip (320) is connected below the support plate (400), and the concave strip (430) is slidably connected to the convex strip (320).

4. The internal combustion engine crankshaft coaxiality sliding detection module according to claim 2, characterized in that: A limiting member (440) is connected to the bearing plate (400). The limiting member (440) is U-shaped and surrounds and fits outside the output motor (410). The opening end of the limiting member (440) faces the bevel rack (310).

5. The internal combustion engine crankshaft coaxiality sliding detection module according to claim 4, characterized in that: A spring (450) is provided on the inner side wall of the limiting member (440) at one end away from the helical rack (310), and the spring (450) is in a compressed state to press the helical gear (420) toward the helical rack (310).

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