Auxiliary tool for measuring pitch of semi-open bearing hole

Abstract

The utility model relates to an auxiliary tool for measuring the hole distance of a semi-open bearing hole, which is characterized by comprising a lever, a front-end measuring block sleeved at the front end of the lever in a sliding manner, a rear-end measuring block coaxially positioned at the rear end of the lever, and an ejector rod assembly capable of pushing the lever to move on the front-end measuring block, wherein the ejector rod assembly is connected with the front-end measuring block and is in contact with the front end surface of the lever; and the front-end measuring block and the rear-end measuring block are respectively matched with semi-open bearing holes which are coaxially aligned on the shell, so that the lever is supported on the shell. According to the utility model, the hole pitch measurement operation process of the open-half bearing hole is standardized, the influence of manual operation is effectively reduced, errors are reduced, the measurement precision is improved, and the measurement convenience and efficiency are improved; the ejector rod assembly adjusts the distance between the front-end measuring block and the rear-end measuring block, is suitable for measuring the pitch of the semi-open bearing holes with various pitches, and is high in practicability.

Description

Technical Field

[0001] The utility model relates to an auxiliary tool for measuring the hole distance of a half-open bearing hole, which is used for measuring the hole distance of the bearing holes on a reducer housing. Background Art

[0002] In the field of new energy vehicles, the motor drives the reducer to achieve power output, and the reducer has a variety of structural forms. With the increasing frequency of high-speed motors and the increase in motor speed, the requirements for reducer assembly are also getting higher and higher. Some gear reducers are driven by two sets of gears, one set is the meshing transmission between the input shaft and the intermediate shaft connecting the motor, and the other is the meshing transmission between the output shaft and the intermediate shaft that outputs the power. The setting of the output shaft, input shaft and intermediate shaft in the reducer determines the size of the reducer. The housing of the reducer is a structure connected by the front housing and the rear housing. Semi-open bearing holes are provided in the front housing and the rear housing. The front housing and the rear housing are connected to splice the two semi-open bearing holes. The input shaft The bearings on the intermediate shaft and the output shaft are all assembled in the bearing holes formed by splicing two half-open bearing holes, that is to say, the half-open bearing holes corresponding to the bearings at both ends of the same shaft are coaxially aligned on the housing. In order to ensure the adaptation of the bearing holes, shafts and bearings during the assembly process, the end face spacing of the two coaxially aligned half-open bearing holes on the housing needs to be measured. The existing bearing hole spacing is mostly measured by a measuring rod or a vernier caliper. The main problem is that the measuring rod or the vernier caliper is not parallel to the center axis of the hole during the measurement, which is greatly affected by human operation factors, has low measurement efficiency and low measurement accuracy. Utility Model Content

[0003] The utility model provides an auxiliary tool for measuring the hole spacing of a semi-open bearing hole, which standardizes the hole spacing measurement operation process of the semi-open bearing hole, effectively reduces the influence of human operation, reduces errors, improves measurement accuracy, and improves measurement convenience and efficiency; the push rod assembly adjusts the spacing between the front end measuring block and the rear end measuring block, and is suitable for measuring the hole spacing of semi-open bearing holes with a variety of hole spacings, and is highly practical.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The hole distance measurement auxiliary tooling of a semi-open bearing hole is characterized in that it includes a lever, a front end measuring block slidably mounted on the front end of the lever, a rear end measuring block coaxially positioned on the rear end of the lever, and a push rod assembly that can push the lever to move on the front end measuring block. The push rod assembly is connected to the front end measuring block and contacts the front end surface of the lever. The front end measuring block and the rear end measuring block respectively cooperate with the semi-open bearing holes coaxially aligned on the shell to support the lever on the shell.

[0006] Preferably, the push rod assembly includes a support frame fixed to the front end measuring block by bolts, a push rod threadedly passing through the support frame and with its inner end in contact with the front end surface of the lever, and a nut threadedly sleeved on the push rod and located on the front side of the support frame. The push rod is coaxially aligned with the lever, and the lever moves on the front end measuring block as the push rod is pushed.

[0007] Preferably, the rear end of the lever has a rear end convex ring and an axial retaining ring of the clamp on the lever, the axial retaining ring is arranged on the rear side of the rear end convex ring, the rear end measuring block is sleeved on the lever, the front end face is abutted against the rear end convex ring, and the rear end face is abutted against the axial retaining ring.

[0008] Preferably, a bushing is coaxially fixed in the inner ring of the front end measuring block, and the bushing is sleeved on the lever.

[0009] Preferably, the rear end of the bushing has an annular flange folded outward by 90 degrees and fitted with the end face of the front measuring block, and the lever has a front convex ring that abuts against the annular flange.

[0010] The beneficial effects of the utility model are:

[0011] The utility model discloses an auxiliary tool for measuring the hole distance of a semi-open bearing hole. When in use, a front end measuring block and a rear end measuring block are respectively placed in the semi-open bearing holes coaxially aligned on a shell body, a lever is supported on the shell body, and a push rod assembly is used to push the lever to move and adjust the distance between the front end measuring block and the rear end measuring block, so that the front end measuring block and the rear end measuring block are respectively against the end faces of the semi-open bearing holes where they are located, and then a caliper is used to measure the distance from the front end face of the front end measuring block to the rear end face of the rear end measuring block, which is the hole distance of the semi-open bearing holes coaxially aligned on the shell body; the end faces of the semi-open bearing holes coaxially aligned on the shell body are synchronously extended upward by an auxiliary tool, and the caliper is set between the front end measuring block and the rear end measuring block to accurately measure the hole distance of the semi-open bearing holes, standardize the hole distance measurement operation process of the semi-open bearing holes, effectively reduce the influence of human operation, reduce errors, improve measurement accuracy, and improve measurement convenience and efficiency; the push rod assembly adjusts the distance between the front end measuring block and the rear end measuring block, which is suitable for the hole distance measurement of semi-open bearing holes with various hole distances, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the hole spacing measurement auxiliary tooling of the half-open bearing hole in a specific implementation manner.

[0013] Figure 2 This is a cross-sectional view of the auxiliary tooling for measuring the hole distance of a semi-open bearing hole.

[0014] Figure 3 It is a schematic diagram of the front end measuring block and the rear end measuring block respectively coaxially aligned with the half-open bearing holes on the housing. DETAILED DESCRIPTION

[0015] Combine the following Figures 1 to 3 The embodiments of the utility model are described in detail.

[0016] The hole distance measurement auxiliary tooling of the semi-open bearing hole is characterized in that it includes: a lever 1, a front end measuring block 2 slidably mounted on the front end of the lever 1, a rear end measuring block 3 coaxially positioned at the rear end of the lever 1, and a push rod assembly 4 that can push the lever 1 to move on the front end measuring block 2, the push rod assembly is connected to the front end measuring block and contacts with the front end surface of the lever 1, the front end measuring block 2 and the rear end measuring block 3 respectively cooperate with the semi-open bearing hole 101 coaxially aligned on the shell 100 to support the lever 1 on the shell 100.

[0017] The above-mentioned auxiliary tool for measuring the hole distance of the semi-open bearing hole is used as follows: Figure 3 As shown, first, the front end measuring block 2 and the rear end measuring block 3 are respectively placed in the coaxially aligned semi-open bearing hole 101 on the housing 100, and the lever 1 is supported on the housing 100. The lever 1 is pushed by the push rod assembly 4 to move and adjust the spacing between the front end measuring block 2 and the rear end measuring block 3, so that the front end measuring block 2 and the rear end measuring block 3 are respectively against the end surface of the semi-open bearing hole 101 where they are located, and then the distance from the front end surface of the front end measuring block 2 to the rear end surface of the rear end measuring block 3 is measured with a caliper, which is the coaxially aligned semi-open bearing hole 101 on the housing 100. 01; use auxiliary tooling to synchronously extend the end faces of the coaxially aligned half-open bearing holes 101 on the shell 100 upward, and the caliper is set between the front end measuring block and the rear end measuring block to accurately measure the hole spacing of the half-open bearing holes, standardize the hole spacing measurement operation process of the half-open bearing holes, effectively reduce the influence of human operation, reduce errors, improve measurement accuracy, and improve measurement convenience and efficiency; the push rod assembly 4 adjusts the spacing between the front end measuring block 2 and the rear end measuring block 3, and is suitable for the hole spacing measurement of semi-open bearing holes with a variety of hole spacings, and is highly practical.

[0018] The push rod assembly 4 comprises a support frame 41 fixedly connected to the front end measuring block 2 by bolts, a push rod 42 threadedly passing through the support frame 41 and with the inner end in contact with the front end surface of the lever 1, and a nut 43 threadedly sleeved on the push rod 42 and located at the front side of the support frame 41. The push rod 42 is coaxially aligned with the lever 1, and the lever 1 moves on the front end measuring block 2 as the push rod 42 pushes it. After the front end measuring block 2 and the rear end measuring block 3 are respectively placed in the coaxially aligned half-open bearing holes 101 on the housing 100, the front end measuring block 2 is firstly abutted against the end surface of the half-open bearing hole 101, and then the push rod 42 is rotated to push the lever 1 to move, so that the rear end measuring block 2 moves synchronously and abuts against the end surface of the half-open bearing hole 101, and then the nut 43 is tightened to make it abut against the support frame to prevent the push rod 42 from continuing to rotate, and then the distance from the front end surface of the front end measuring block 2 to the rear end surface of the rear end measuring block 3 is measured with a caliper, which is the hole distance of the coaxially aligned half-open bearing hole 101 on the housing 100.

[0019] The rear end of the lever 1 has a rear end convex ring 11 and an axial retaining ring 12 clamped on the lever 1, the axial retaining ring 12 is arranged on the rear side of the rear end convex ring 11, and the rear end measuring block 3 is sleeved on the lever 1, the front end face abuts against the rear end convex ring 11, and the rear end face abuts against the axial retaining ring 12. The rear end measuring block 11 is positioned on the lever 1 by the rear end convex ring 11 and the axial retaining ring 12, ensuring that the rear end measuring block 3 will not move along the lever 1 and is axially positioned on the lever 1.

[0020] The inner ring of the front end measuring block 2 is coaxially fixed with a bushing 21, which is sleeved on the lever 1. The bushing 21 contacts the lever 1 and slides on the lever 1, thereby reducing wear.

[0021] The rear end of the bushing 21 has an annular flange 22 that is folded outward by 90 degrees and fits with the end surface of the front measuring block 2, and the lever 1 has a front convex ring 13 that abuts against the annular flange 22. The front measuring block 2 is confined to the front end of the lever 1 by the abutment between the annular flange 22 and the front convex ring 13, so as to avoid the front measuring block 2 moving backward when the lever 1 causes the lever to bend and deform, thereby improving the structural reliability.

[0022] The above is a complete description of the technical solutions of the embodiments of the utility model in combination with the accompanying drawings. It should be noted that the described embodiments are only part of the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

Claims

1. Auxiliary tooling for measuring the hole distance of a semi-open bearing hole, characterized by: It includes a lever, a front end measuring block slidably mounted on the front end of the lever, a rear end measuring block coaxially positioned on the rear end of the lever, and a push rod assembly capable of pushing the lever to move on the front end measuring block. The push rod assembly is connected to the front end measuring block and contacts the front end surface of the lever. The front end measuring block and the rear end measuring block respectively cooperate with coaxially aligned half-open bearing holes on the shell to support the lever on the shell.

2. The hole distance measurement auxiliary tool for the half-open bearing hole according to claim 1 is characterized in that: The push rod assembly includes a support frame fixed to the front end measuring block by bolts, a push rod threadedly passing through the support frame and with its inner end in contact with the front end surface of the lever, and a nut threadedly sleeved on the push rod and located on the front side of the support frame. The push rod is coaxially aligned with the lever, and the lever moves on the front end measuring block as the push rod is pushed.

3. The hole distance measurement auxiliary tool for the half-open bearing hole according to claim 1 is characterized in that: The rear end of the lever has a rear end convex ring and an axial retaining ring of the clamp on the lever, the axial retaining ring is arranged on the rear side of the rear end convex ring, the rear end measuring block is sleeved on the lever, the front end face is against the rear end convex ring, and the rear end face is against the axial retaining ring.

4. The hole distance measurement auxiliary tool for the half-open bearing hole according to claim 2 is characterized in that: A bushing is coaxially fixed in the inner ring of the front end measuring block, and the bushing is sleeved on the lever.

5. The hole distance measurement auxiliary tool for the half-open bearing hole according to claim 4 is characterized in that: The rear end of the bushing is provided with an annular flange which is folded outwards by 90 degrees and fits with the end face of the front measuring block, and the lever is provided with a front convex ring which abuts against the annular flange.

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