Detection tool for rapidly detecting initial position of velocity measurement arc

Abstract

The utility model discloses a testing fixture for rapidly testing the initial position of a velocity measurement arc, and relates to the technical field of flywheel detection. The testing fixture comprises a flywheel body and a testing fixture body, a central hole is arranged at the axis of the flywheel body, a pin hole is arranged on the flywheel body, a gear ring is arranged on the peripheral side surface of the flywheel body, a speed measuring arc is arranged on the gear ring, the testing fixture body comprises a positioning disc, an extension arm and two detection sheets, a positioning shaft is fixed at the axis of the bottom of the positioning disc, and a positioning pin is arranged on the positioning disc. The positioning disc covers the top face of the flywheel body, the positioning shaft is arranged in the center hole in a clearance mode, the positioning pin is arranged in the pin hole in a clearance mode, and one end of the extension arm is fixed to the top of the positioning disc. By designing the novel detection tool, accurate positioning between the detection tool and the flywheel is facilitated, a detection result can be rapidly obtained through the detection sheet, and the detection tool has the characteristics of simple structure and convenient assembly process, is accurate in detection and high in efficiency, and effectively improves the product quality.

Description

Technical Field

[0001] The utility model belongs to the technical field of flywheel detection, in particular to a detection tool for quickly detecting the starting position of a speed measuring arc. Background Art

[0002] A circle of speed measuring arc needs to be processed on the flywheel assembly. If the starting position of this circle of speed measuring arc has a large deviation, the sensor will be unable to sense, so the starting position of the flywheel speed measuring arc needs to be detected.

[0003] At present, the detection method for the starting position of the speed measuring arc is to use an old-fashioned gauge. Since the old-fashioned gauge is positioned by the bolt holes on the flywheel and the bolt hole position accuracy requirement is not high, it will lead to inaccurate measurement of the gauge and large errors.

[0004] To this end, designing an inspection device that can improve the inspection accuracy of the starting position of the flywheel speed measuring arc and reduce labor costs has an urgent need and is of great significance. Therefore, designing a inspection fixture that can improve the inspection accuracy of the starting position of the speed measuring arc and has high clamping efficiency is a problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0005] The purpose of the utility model is to provide a gauge for quickly checking the starting position of a speed measuring arc. By designing a new gauge, accurate positioning between the gauge and the flywheel is facilitated, and the detection result can be quickly obtained through the detection piece. The gauge also has the characteristics of simple structure and convenient assembly process, and the inspection is accurate and efficient, which effectively improves the quality of the product.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a check fixture for quickly checking the starting position of a speed measuring arc, comprising a flywheel body and a check fixture body, wherein a center hole is arranged at the axis of the flywheel body, a pin hole is arranged on the flywheel body, a gear ring is arranged on the peripheral side of the flywheel body, and a speed measuring arc is arranged on the gear ring;

[0008] The inspection tool body includes a positioning plate, an extension arm and two inspection pieces;

[0009] A positioning shaft is fixed at the axis center of the bottom of the positioning plate, a positioning pin is provided on the positioning plate, the positioning plate covers the top surface of the flywheel body, the positioning shaft gap is set in the center hole, and the positioning pin gap is set in the pin hole;

[0010] One end of the extension arm is fixed to the top of the positioning plate, and the other end of the extension arm is provided with a lower folding edge, and the lower folding edge is provided with a group of slots, and the two detection pieces are respectively fixed in the slots;

[0011] The bottom end of the detection piece exceeds the bottom surface of the lower folded edge to form a detection end, and the detection ends of the two detection pieces are both located outside the speed measuring arc.

[0012] Furthermore, an embedding opening is provided on the top surface of the positioning plate, a gap at one end of the extension arm is arranged in the embedding opening, and one end of the extension arm located in the embedding opening is connected to the positioning plate through a plurality of fasteners.

[0013] Furthermore, a group of handles are fixed on the top surface of the positioning plate, and the handles are T-shaped handles. The handles and the positioning pins are misaligned with the embedding opening.

[0014] Furthermore, a lower opening is provided at the axis center of the positioning plate, a T-shaped opening concentric with the lower opening is provided at the end of the extension arm, and the positioning shaft is fixed to the positioning plate by bolts, and the bolts are arranged in the T-shaped opening and the lower opening.

[0015] Furthermore, a group of screws are provided through both sides of the lower folding edge, and the detection piece is fixed in the slot by the screws.

[0016] Furthermore, a weight-reducing hole is provided on the extension arm, and the weight-reducing hole is a rectangular hole.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model designs a new type of inspection fixture, which is convenient for accurate positioning with the flywheel. At the same time, the inspection result can be quickly obtained through the detection piece. The inspection fixture also has the characteristics of simple structure and convenient assembly process, and the inspection is accurate and efficient, which effectively improves the quality of the product.

[0019] 2. The utility model designs a modular inspection fixture, and the various parts are connected to each other by fasteners. The components can be easily disassembled and replaced. It is suitable for use with flywheels of different specifications and types, and can be quickly replaced after wear and tear, reducing the inspection and maintenance costs, thereby improving inspection efficiency and production efficiency.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the structure of a test fixture for quickly testing the starting position of a speed measuring arc according to the utility model;

[0023] Figure 2 It is a structural diagram of the inspection fixture body;

[0024] Figure 3 It is a structural sectional view of the utility model;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1-flywheel body, 2-gauge body, 3-positioning plate, 4-extension arm, 5-detection piece, 101-center hole, 102-pin hole, 103-gear ring, 104-speed measuring arc, 301-positioning shaft, 302-positioning pin, 303-embedded opening, 304-fastener, 305-handle, 306-lower opening, 401-lower folding edge, 402-slot, 403-T-shaped opening, 404-screw, 405-weight reduction hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-3 As shown, the utility model is a check fixture for quickly checking the starting position of a speed measuring arc, comprising a flywheel body 1 and a check fixture body 2, wherein a center hole 101 is provided at the axis of the flywheel body 1, a pin hole 102 is provided on the flywheel body 1, a gear ring 103 is provided on the side surface of the flywheel body 1, and a speed measuring arc 104 is provided on the gear ring 103;

[0029] The inspection tool body 2 includes a positioning plate 3, an extension arm 4 and two inspection pieces 5;

[0030] A positioning shaft 301 is fixed at the axis center of the bottom of the positioning plate 3, and a positioning pin 302 is provided on the positioning plate 3. The positioning plate 3 covers the top surface of the flywheel body 1, and the positioning shaft 301 is set in the center hole 101, and the positioning pin 302 is set in the pin hole 102;

[0031] One end of the extension arm 4 is fixed to the top of the positioning plate 3, and the other end of the extension arm 4 is provided with a lower folding edge 401, and a group of slots 402 are provided on the lower folding edge 401, and two detection pieces 5 are respectively fixed in the slots 402;

[0032] The bottom end of the detection piece 5 exceeds the bottom surface of the lower folded edge 401 to form a detection end. The detection ends of the two detection pieces 5 are both located outside the speed measuring arc 104 .

[0033] Among them Figure 1-3 As shown, an embedding opening 303 is provided on the top surface of the positioning plate 3 , one end of the extension arm 4 is spaced in the embedding opening 303 , and one end of the extension arm 4 located in the embedding opening 303 is connected to the positioning plate 3 through a plurality of fasteners 304 .

[0034] Among them Figure 1-3 As shown, a group of handles 305 are fixed on the top surface of the positioning plate 3 . The handles 305 are T-shaped handles. The handles 305 and the positioning pins 302 are misaligned with the embedding opening 303 .

[0035] Among them Figure 1 and Figure 3 As shown, a lower opening 306 is provided at the axis center of the positioning plate 3 , a T-shaped opening 403 concentric with the lower opening 306 is provided at the end of the extension arm 4 , and the positioning shaft 301 is fixed to the positioning plate 3 by bolts, and the bolts are arranged in the T-shaped opening 403 and the lower opening 306 .

[0036] Among them Figure 1-2 As shown, a group of screws 404 are provided through both sides of the lower folding edge 401 , and the detection piece 5 is fixed in the slot 402 by the screws 404 .

[0037] Among them Figure 1-3 As shown, a weight-reducing hole 405 is provided on the extension arm 4, and the weight-reducing hole 405 is a rectangular hole.

[0038] The working principle of the utility model is as follows: the positioning pin 302 cooperates with the pin hole 102, and the positioning shaft 301 cooperates with the center hole 101 to play a positioning role. The positioning plate 3 can be covered on the top of the flywheel body 1 through positioning. At this time, the detection piece 5 at the end of the extension arm 4 is on the outside of the gear ring 103, and the detection end formed at the bottom end of the detection piece 5 is located on the outside of the speed measuring arc 104. If the inner sides of the two detection pieces 5 are flush with the speed measuring arc 104, it means that the starting position of the speed measuring arc 104 meets the requirements, otherwise it means that the position is deviated.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A test fixture for quickly checking the starting position of a speed measuring arc, comprising a flywheel body (1) and a test fixture body (2), wherein the flywheel body (1) is provided with a center hole (101) at the axis center, the flywheel body (1) is provided with a pin hole (102), the flywheel body (1) is provided with a gear ring (103) on the peripheral side surface, and the gear ring (103) is provided with a speed measuring arc (104), characterized in that: The inspection tool body (2) comprises a positioning plate (3), an extension arm (4) and two inspection pieces (5); A positioning shaft (301) is fixed at the axis center of the bottom of the positioning plate (3), a positioning pin (302) is provided on the positioning plate (3), the positioning plate (3) covers the top surface of the flywheel body (1), the positioning shaft (301) is arranged with a clearance in the center hole (101), and the positioning pin (302) is arranged with a clearance in the pin hole (102); One end of the extension arm (4) is fixed to the top of the positioning plate (3), and the other end of the extension arm (4) is provided with a lower folding edge (401), and a group of slots (402) are provided on the lower folding edge (401), and the two detection pieces (5) are respectively fixed in the slots (402); The bottom end of the detection piece (5) exceeds the bottom surface of the lower folded edge (401) to form a detection end, and the detection ends of the two detection pieces (5) are both located outside the speed measuring arc (104).

2. A test fixture for quickly checking the starting position of a speed measuring arc according to claim 1, characterized in that: The top surface of the positioning plate (3) is provided with an embedding opening (303), one end of the extension arm (4) is spaced in the embedding opening (303), and one end of the extension arm (4) located in the embedding opening (303) is connected to the positioning plate (3) via a plurality of fasteners (304).

3. A test fixture for quickly checking the starting position of a speed measuring arc according to claim 2, characterized in that: A group of handles (305) are fixed on the top surface of the positioning plate (3); the handles (305) are T-shaped handles; the handles (305) and the positioning pins (302) are both misaligned with the embedding opening (303).

4. A test fixture for quickly checking the starting position of a speed measuring arc according to claim 1, characterized in that: The positioning plate (3) is provided with a lower opening (306) at the axis center, the end of the extension arm (4) is provided with a T-shaped opening (403) concentric with the lower opening (306), and the positioning shaft (301) is fixed to the positioning plate (3) by bolts, and the bolts are arranged in the T-shaped opening (403) and the lower opening (306).

5. A test fixture for quickly checking the starting position of a speed measuring arc according to claim 1, characterized in that: A group of screws (404) are provided through both sides of the lower folding edge (401), and the detection piece (5) is fixed in the slot (402) by the screws (404).

6. A test fixture for quickly checking the starting position of a speed measuring arc according to claim 1, characterized in that: The extension arm (4) is provided with a weight-reducing hole (405), and the weight-reducing hole (405) is a rectangular hole.

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