Shaft neck length detection device of motor shaft

Abstract

The utility model relates to the technical field of journal detection, and aims to solve the problem of poor detection accuracy caused by narrow application range and inconvenient detection of the conventional detection device. The utility model provides a shaft neck length detection device for a motor shaft. The shaft neck length detection device comprises a vernier caliper; the vernier caliper comprises a first measuring claw, a second measuring claw and a main caliper body. The first measuring claw and the second measuring claw are connected with the main ruler body. The ends, away from the main ruler body, of the first measuring claw and the second measuring claw are vertically connected with a first telescopic assembly and a second telescopic assembly respectively. The first telescopic assembly is provided with a first horizontal detection rod; the second telescopic assembly is provided with a second horizontal detection rod opposite to the first horizontal detection rod; according to the utility model, the first horizontal detection rod, the second horizontal detection rod and the second horizontal detection rod are added, so that the detection device has higher measurement precision and adaptability compared with a traditional vernier caliper, and the application range of the detection device is improved.

Description

Technical Field

[0001] This utility model relates to the field of journal detection technology, and more specifically, to a device for detecting the length of a motor shaft journal. Background Technology

[0002] The measurement of motor shaft journal length is widely used in various fields such as automobile manufacturing, industrial machinery, and power equipment, especially in applications requiring high transmission accuracy, such as precision machine tools and high-speed motors. Current technology typically employs conventional vernier calipers for manual inspection, directly reading the journal dimension by sliding the vernier. However, since the motor shaft journal comprises uniform, continuous cylindrical surfaces with varying diameters, it necessitates the use of compatible inspection tools. Furthermore, blind spots at both ends during length measurement can compromise the alignment of the inspection head, resulting in low accuracy.

[0003] Based on the above description, there is an urgent need for a motor shaft journal length detection device that is widely applicable and highly accurate. Utility Model Content

[0004] The purpose of this invention is to provide a motor shaft journal length detection device, which aims to solve the technical problem that the existing detection devices have a narrow range of applications and are inconvenient to use, resulting in poor detection accuracy.

[0005] The embodiments of this utility model are achieved through the following technical solutions:

[0006] A device for detecting the journal length of a motor shaft includes a vernier caliper; the vernier caliper includes a first measuring jaw, a second measuring jaw, and a main scale body; both the first measuring jaw and the second measuring jaw are connected to the main scale body; a first telescopic component and a second telescopic component are respectively vertically connected to the ends of the first measuring jaw and the second measuring jaw away from the main scale body; the first telescopic component is provided with a first horizontal detection rod; the second telescopic component is provided with a second horizontal detection rod opposite to the first horizontal detection rod.

[0007] Preferably, the first measuring claw is fixedly connected to one end of the main scale body; the second measuring claw is slidably connected to the main scale body.

[0008] Preferably, the first telescopic component includes an outer casing and a top pressing member; the outer casing is provided with a plurality of limiting holes at intervals; the first measuring claw is provided with a plurality of telescopic balls corresponding to the limiting holes; the top pressing member is slidably connected to the first measuring claw; the other end of the top pressing member extends toward the top of the outer casing.

[0009] Preferably, the pressing member includes a rod and a pressing block; the pressing block is located at the end of the rod away from the outer sleeve; the pressing block is slidably connected to the first measuring claw.

[0010] Preferably, the outer casing has an elastic component at one end near the main scale body; the rod extends toward the elastic component at one end near the outer casing.

[0011] Preferably, the elastic component includes multiple memory springs and a slot; the rod extends into the slot of the slot and is provided with an arc-shaped insert.

[0012] Preferably, the end of the outer casing near the second horizontal detection rod is screwed to the first horizontal detection rod.

[0013] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0014] This invention adjusts the first and second telescopic components according to the estimated length of the motor shaft journal, allowing the first and second horizontal detection rods to simultaneously contact both sides of the journal. Then, by reading the scale on the main scale, the precise length of the journal can be obtained. By adding the first, second, and third horizontal detection rods, the detection device achieves higher measurement accuracy and adaptability compared to traditional vernier calipers, thus expanding its application range. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is the front view of the present invention;

[0017] Figure 2 for Figure 1 Enlarged schematic diagram of local structure A in the middle;

[0018] Figure 3 This is a side view of the first working state of this utility model;

[0019] Figure 4 This is a side view of the second working state of this utility model.

[0020] Icons: 1-Vernier caliper, 11-First measuring jaw, 12-Second measuring jaw, 13-Main scale body, 4-First telescopic assembly, 41-Outer casing, 42-Top pressure component, 5-Second telescopic assembly, 6-First horizontal detection rod, 7-Second horizontal detection rod, 8-Elastic assembly, 81-Memory spring, 82-Gutter block. Detailed Implementation

[0021] Example 1

[0022] Please see Figures 1 to 4 The present invention provides the following technical solution: a motor shaft journal length detection device, which is suitable for detecting the journal length of a motor shaft.

[0023] Specifically, such as Figure 1 and Figure 2 As shown, a motor shaft journal length detection device includes a vernier caliper 1; the vernier caliper 1 includes a first measuring jaw 11, a second measuring jaw 12, and a main scale body 13; both the first measuring jaw 11 and the second measuring jaw 12 are connected to the main scale body 13; the ends of the first measuring jaw 11 and the second measuring jaw 12 away from the main scale body 13 are respectively vertically connected to a first telescopic component 4 and a second telescopic component 5; the first telescopic component 4 is provided with a first horizontal detection rod 6; the second telescopic component 5 is provided with a second horizontal detection rod 7 opposite to the first horizontal detection rod 6.

[0024] The specific implementation process is as follows: First, adjust the first telescopic component 4 and the second telescopic component 5 according to the estimated length of the motor shaft journal, so that the first horizontal detection rod 6 and the second horizontal detection rod 7 can simultaneously contact both sides of the journal; then, by reading the scale on the main scale body 13, the precise length of the journal can be obtained. By adding the first horizontal detection rod 6, the second horizontal detection rod 7, and the second horizontal detection rod 8, the detection device has higher measurement accuracy and adaptability compared to traditional vernier calipers, thus expanding the applicability range of the detection device.

[0025] Specifically, such as Figure 1 and Figure 2 As shown, the first measuring claw 11 is fixedly connected to one end of the main scale body 13; the second measuring claw 12 is slidably connected to the main scale body 13. The first telescopic assembly 4 includes an outer sleeve 41 and a pressing member 42; the outer sleeve 41 is provided with a plurality of limiting holes at intervals; the first measuring claw 11 is provided with a plurality of telescopic balls corresponding to the limiting holes; the pressing member 42 is slidably connected to the first measuring claw 11; the other end of the pressing member 42 extends toward the top of the outer sleeve 41.

[0026] In this embodiment, the expansion and contraction of the outer sleeve 41 is adjusted by adjusting the relative engagement position between the upper limit hole of the outer sleeve 41 and the telescopic ball, thereby achieving the position adjustment of the first horizontal detection rod 6. The second horizontal detection rod 7 has the same adjustment method and adjustment locking position as the first horizontal detection rod 6, thereby ensuring the fixed detection position of the second horizontal detection rod 7 and the first horizontal detection rod 6.

[0027] Specifically, such as Figures 2 to 4 As shown, the pressing member 42 includes a rod and a pressing block; the pressing block is located at the end of the rod away from the outer sleeve 41; the pressing block is slidably connected to the first measuring claw 11. The outer sleeve 41 is provided with an elastic component 8 at the end near the main scale body 13; the end of the rod near the outer sleeve 41 extends toward the elastic component 8.

[0028] In this embodiment, the elastic component 8 includes multiple memory springs 81 and a slot block 82; the rod extends into the slot of the slot block 82 and is provided with an arc-shaped insert. By repeatedly pressing the pressing block, the rod is controlled to repeatedly press the slot block 82, thereby repeatedly compressing the memory springs 81 to obtain elastic force. This facilitates easy adjustment of the extension and retraction state and locking position of the telescopic ball, and facilitates quick adjustment of the detection positions of the second horizontal detection rod 7 and the first horizontal detection rod 6, thus improving detection efficiency.

[0029] In this embodiment, the pressing block passes through the strip-shaped sliding opening of the measuring claw via a connecting slider, thereby achieving sliding adjustment. To ensure that the connecting slider does not slide out, a stop is set at its other end for limiting.

[0030] In this embodiment, the end of the outer sleeve 41 near the second horizontal detection rod 7 is screwed to the first horizontal detection rod 6. Specifically, the connection is achieved by setting threads at the end of the detection rod and embedding a threaded cylinder.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for detecting the length of the journal of a motor shaft, comprising a vernier caliper (1), characterized in that: The vernier caliper (1) comprises a first measuring claw (11), a second measuring claw (12) and a main ruler body (13); the first measuring claw (11) and the second measuring claw (12) are connected with the main ruler body (13); the first measuring claw (11) and the second measuring claw (12) are respectively connected with a first telescopic assembly (4) and a second telescopic assembly (5) at the end away from the main ruler body (13); the first telescopic assembly (4) is provided with a first horizontal detection rod (6); the second telescopic assembly (5) is provided with a second horizontal detection rod (7) opposite to the first horizontal detection rod (6).

2. The motor shaft neck length detection device according to claim 1, characterized by: The first measuring claw (11) is fixedly connected with one end of the main ruler body (13); the second measuring claw (12) is slidingly connected with the main ruler body (13).

3. The motor shaft neck length detection apparatus according to claim 2, characterized by: The first telescopic assembly (4) comprises an outer sleeve body (41) and a top pressing piece (42); the outer sleeve body (41) is provided with a plurality of limiting holes at intervals; the first measuring claw (11) is provided with a plurality of telescopic beads corresponding to the limiting holes; the top pressing piece (42) is slidingly connected with the first measuring claw (11); the other end of the top pressing piece (42) extends to the top of the outer sleeve body (41).

4. The motor shaft neck length detection apparatus according to claim 3, characterized by: The top pressing piece (42) comprises a rod body and a pressing block; the pressing block is arranged at the end of the rod body away from the outer sleeve body (41); the pressing block is slidingly connected with the first measuring claw (11).

5. The motor shaft neck length detection apparatus according to claim 4, characterized by: The outer sleeve body (41) is provided with an elastic assembly (8) at the end close to the main ruler body (13); the rod body extends to the elastic assembly (8) at the end close to the outer sleeve body (41).

6. The motor shaft neck length detection apparatus according to claim 5, characterized by: The elastic assembly (8) comprises a plurality of memory springs (81) and a groove block (82); the rod body extends to the arc-shaped socket of the groove cavity of the groove block (82).

7. A motor shaft neck length detection device according to any one of claims 3 to 6, characterised in that: The outer sleeve body (41) is screw-connected with the first horizontal detection rod (6) at the end close to the second horizontal detection rod (7).

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