CN216144267U - Motor shaft extension end detection tool - Google Patents

Abstract

The utility model discloses a motor shaft extension end detection tool which comprises a base body, wherein an installation part is formed at one end of the base body; the meter clamp assembly comprises a clamping block part and a fastener, and is rotatably arranged on the mounting part; coupling assembling movably connects on the base member, and coupling assembling includes first adapting unit, second adapting unit and regulating part, is equipped with the first connecting portion that is used for connecting the base member on the first adapting unit, is equipped with the second connecting portion on the second adapting unit, and the regulating part cooperates the elasticity in order to adjust the second connecting portion with first adapting unit activity. Simple structure, convenient to use can carry out straightness that hangs down, axiality to cooperation terminal surface, cooperation boss and detect. Meanwhile, the jumping of the motor rotating shaft and the spline of the speed reducer can be detected only by replacing the clamping position of the tool, so that the labor intensity is greatly reduced, and the efficiency is greatly improved.

Description

Motor shaft extension end detection tool

Technical Field

The utility model belongs to the technical field of detection tools, and particularly relates to a motor shaft extension end detection tool.

Background

The electric drive system of the electric automobile is a core component of the electric automobile and comprises a drive motor, a drive motor controller, a speed reducer and other key components, and when the electric drive system of the new energy automobile is assembled, the coaxiality of the motor and the speed reducer is very critical, so that the working performance of the electric drive system is related to the matched use. When the coaxiality of the motor and the speed reducer is out of tolerance, the working performance of the matching use can be influenced, and the noise can be generated during the operation due to the abnormal interference of the motor rotating shaft spline and the speed reducer spline during the operation.

The shaft extension end connection mode of the existing new energy motor mainly comprises spline connection, key connection and locking interference connection, the spline connection motor needs to be matched with a spline of a speed reducer, when the coaxiality of the spline of the motor and the spline of the speed reducer is poor, abnormal sound is easy to occur in the operation process, and the service life of a product is shortened.

The current control mode of the coaxiality of the motor rotating shaft and the end cover is mainly guaranteed by the incoming material quality of parts, and the coaxiality of the motor is not detected in the production process. The motor shaft extension end detection project mainly has the axiality with the cooperation boss, with the straightness that hangs down of fitting surface, content such as pivot spline runout, and the current detection mode mainly adopts and uses special frock clamp fixed mode on examining test table, and detection tool installation adjustment monitoring point position to carry out relevant detection, detection efficiency is low, and different detection projects need be changed different detection tool or frock, and it is inconvenient to use, and intensity of labour is great.

Disclosure of Invention

In view of the above technical problems, the present invention aims to: the utility model provides a motor shaft stretches end and detects frock, simple structure, the part is changed conveniently, and the maintenance cost is low can carry out straightness, axiality, motor shaft and the jump of reduction gear spline and detect mating surface, cooperation boss, promotes efficiency by a wide margin.

The technical scheme of the utility model is as follows:

the utility model discloses a motor shaft extension end detection tool, which comprises:

a base body having a mounting portion formed at one end thereof;

the dial gauge comprises a dial gauge, a mounting part and a dial gauge clamping assembly, wherein the dial gauge clamping assembly comprises a clamping block part suitable for clamping the dial gauge for detection and a fastener connected to the clamping block part and used for switching the clamping block part between a clamping state and a loosening state;

coupling assembling, movably connect be in on the base member, coupling assembling includes first adapting unit, second adapting unit and regulating part, be equipped with on the first adapting unit and be used for connecting the first connecting portion of base member, be equipped with on the second adapting unit and be used for connecting the motor shaft or be used for with be connected the second connecting portion that the fixed subassembly of awaiting measuring reduction gear internal spline or connection motor front end housing is connected, the regulating part with first adapting unit movable fit is in order to adjust the elasticity of second connecting portion.

Preferably, the base member is shaft-like, the installation department is for setting up the mounting structure who is the L style of calligraphy of the one end of base member, the confession has been seted up on the mounting structure the first connecting hole that the fastener is connected, the axis perpendicular to of first connecting hole the axis of base member.

Preferably, the clamping block component comprises two clamping blocks which are opposite and adjustable in distance, and a second connecting hole for connecting the fastener is formed in the middle of each clamping block;

two arc-shaped concave parts are arranged on the end surface of each clamping block facing to the other clamping block, and the two concave parts are arranged at two ends of a second connecting hole on the clamping block;

the second connecting holes and the concave parts on the two clamping blocks correspond to each other one by one, and a clamping space for clamping the dial indicator is formed between the corresponding concave parts.

Preferably, the second connecting part is a U-shaped clamping block and comprises a first clamping arm and a second clamping arm which are arranged oppositely, and the second connecting part is a fourth connecting hole defined between the first clamping arm and the second clamping arm;

the first connecting part is a pull nail and is installed on one side of the first clamping arm through a supporting ring, the first connecting part is a third connecting hole formed in one end, far away from the first clamping arm, of the pull nail, and the axis of the third connecting hole is perpendicular to the axis of the fourth connecting hole and is not coplanar;

the adjusting piece is arranged on one side of the second clamping arm and is provided with an adjusting hand wheel opposite to the pull nail, and one end of the adjusting hand wheel is inserted into the second clamping arm and is connected with one end of the first clamping arm in a threaded manner through the pull nail.

Preferably, when the detection frock is used for reduction gear axis and reduction gear front end housing face straightness detection that hangs down, fixed subassembly includes:

the screw assembly comprises a screw and a support body which are coaxially sleeved, and one end of the support body is connected with an expansion plug;

the elastic sleeve is sleeved on the periphery of one end, connected with the expansion plug, of the support body, and the elastic sleeve is suitable for being connected with the inner spline of the speed reducer in a matched mode.

Preferably, one end of the screw rod, which is far away from the support body, is provided with a third connecting hole, and the axis of the third connecting hole is perpendicular to the axis of the screw rod; the fixing assembly further comprises:

a handle adapted to be removably attached within the third attachment aperture.

Preferably, when the detection tool is used for detecting the perpendicularity between the axis of the speed reducer and the front end cover surface of the speed reducer, the central line of the clamping block component, which is parallel to the front end cover surface of the speed reducer, is parallel to the axis of the base body.

Preferably, when the detection tool is used for detecting the circular runout of the spline tooth profile of the speed reducer or detecting the runout of the spline tooth profile of the motor shaft, the fixing assembly comprises a fixing rod and a fastening nut, and the fixing rod is suitable for being inserted into the front end cover of the motor or the front end cover of the speed reducer and locked and fixed by the fastening nut.

Preferably, when the detection tool is used for detecting the perpendicularity of the axis of the motor and the front end cover surface or the coaxiality of a boss of the front end surface, the center line of the clamping block part, which is parallel to the front end cover surface of the motor, and the axis of the base body form an included angle.

Compared with the prior art, the utility model has the advantages that:

the motor shaft extension end detection tool is simple in structure and convenient to use, and can be used for detecting the perpendicularity and the coaxiality of the matching end face and the matching boss. Meanwhile, the jumping of the motor rotating shaft and the spline of the speed reducer can be detected only by replacing the clamping position of the tool, so that the labor intensity is greatly reduced, and the efficiency is greatly improved.

Drawings

The utility model is further described with reference to the following figures and examples:

FIG. 1 is a schematic structural diagram of a motor shaft extension end detection tool according to an embodiment of the utility model;

FIG. 2 is a schematic structural diagram of a base body of the motor shaft extension end detection tool according to the embodiment of the utility model;

FIG. 3 is a schematic structural diagram of a clamp block component of the motor shaft extension end detection tool according to the embodiment of the utility model;

fig. 4 is a schematic structural diagram of a connecting assembly of the motor shaft extension end detection tool according to the embodiment of the utility model;

fig. 5 is a schematic structural diagram of one of the second connecting parts of the motor shaft extension end detection tool according to the embodiment of the utility model;

fig. 6 is another schematic structural diagram of a second connecting part of the motor shaft extension end detection tool according to the embodiment of the utility model;

fig. 7 is a schematic structural diagram of a first connecting component of the motor shaft extension end detection tool according to the embodiment of the utility model;

FIG. 8 is a schematic structural diagram of a fixing assembly of the motor shaft extension end detection tool for detecting the perpendicularity between the axis of the speed reducer and the front end face in the embodiment of the utility model;

FIG. 9 is a schematic structural diagram of the detection tool for the shaft extension end of the motor, which is used for detecting the perpendicularity between the axis of the speed reducer and the front end face, according to the embodiment of the utility model;

FIG. 10 is a schematic structural diagram of a motor shaft extension end detection tool used for detecting circular runout of a spline tooth profile of a speed reducer according to an embodiment of the utility model;

FIG. 11 is a schematic structural diagram of the motor shaft extension end detection tool for detecting the perpendicularity between the motor axis and the front end face according to the embodiment of the utility model;

FIG. 12 is a schematic structural diagram of the motor shaft extension end detection tool for detecting the perpendicularity between the motor axis and the front end boss according to the embodiment of the utility model;

FIG. 13 is a schematic structural view of the motor shaft extension end detection tool for detecting the runout of the spline tooth profile of the motor shaft according to the embodiment of the utility model;

fig. 14 is a schematic structural view of the motor shaft extension end detection tool in fig. 13, which is used for matching a motor shaft spline tooth profile run-out amount detection rod with a spline.

Wherein: 1. a substrate; 11. an installation part; 12. a first connection hole; 2. a meter jaw assembly; 21. a clamping block; 22. a second connection hole; 23. a recess; 24. a clamping space; 3. a connecting assembly; 31. a first connecting member; 311. a third connection hole; 32. a second connecting member; 320. a fourth connection hole; 321. a first clamp arm; 322. a second clamp arm; 33. an adjustment member; 34. a supporting ring; 35. a gasket; 4. a fixing assembly; 41. a screw assembly; 411. a screw; 412. a support body; 42. an elastic sleeve; 43. expanding and plugging; 44. a handle; 41', a fixing rod; 42', a fastening nut; 5. a dial indicator; 6. a speed reducer; 7. a motor; 71. a motor shaft; 72. a boss; 73. a motor shaft spline; 8. measuring the rod; 9. a rubber band.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Example (b):

referring to fig. 1 to 14, a motor shaft extension end detection tool according to an embodiment of the present invention includes a base 1, a meter clamp assembly 2, and a connection assembly 3. Wherein the base body 1 is rod-shaped, and an installation part 11 is formed on one end of the base body 1. The meter jaw assembly 2 includes a jaw member adapted to clamp the dial indicator 5 for detection and a fastener connected to the jaw member for switching the jaw member between a clamped state and an unclamped state, and the meter jaw assembly 2 is rotatably mounted on the mounting portion 11. Coupling assembling 3 movably connects on base member 1, coupling assembling 3 includes first adapting unit 31, second adapting unit 32 and regulating part 33, be equipped with the first connecting portion that is used for connecting base member 1 on the first connecting portion 31, be equipped with on the second adapting unit 32 and be used for connecting motor shaft 71, or be used for with connect the second connecting portion that the fixed subassembly 4 of the 6 internal splines of reduction gear that await measuring or connection motor 7 front end housing is connected, regulating part 33 and the elasticity of first connecting portion 31 clearance fit in order to adjust the second connecting portion.

As shown in fig. 2, the mounting portion 11 is an L-shaped mounting structure disposed at one end, i.e. the upper end, of the base 1, a first connection hole 12 for a fastener to connect is disposed on the mounting structure, and an axial direction of the first connection hole 12 is specifically a horizontal direction as shown in fig. 2, and is perpendicular to an axial direction of the base 1, specifically a vertical direction as shown in fig. 2.

As shown in fig. 3, the clamping block component includes two opposite clamping blocks 21 with adjustable distance, and a second connecting hole 22 for connecting a fastener is opened in the middle of each clamping block 21. Two arc-shaped concave parts 23 are formed on the end surface of each clamping block 21 facing the other clamping block 21, and the two concave parts 23 are respectively arranged at the two ends of the second connecting hole 22 on the clamping block 21, namely the left end and the right end as shown in fig. 3 or the upper end and the lower end as shown in fig. 2. The second connecting holes 22 and the concave parts 23 on the two clamping blocks 21 are in one-to-one correspondence, and a clamping space 24 for clamping the dial indicator 5 is formed between the corresponding concave parts 23.

The second connecting part 32 is a U-shaped clamping block and includes a first clamping arm 321 and a second clamping arm 322 disposed oppositely, and the second connecting part is a fourth connecting hole 320 defined between the first clamping arm 321 and the second clamping arm 322. As shown in fig. 7, the first connecting component 31 is a pull nail, the first connecting component 31 is mounted on one side of the first clamping arm 321, that is, the right side as shown in fig. 4, through a supporting ring 34, the first connecting component is a third connecting hole 311 opened on one end of the pull nail far from the first clamping arm 321, and the axis of the third connecting hole 311 is perpendicular to and not coplanar with the axis of the fourth connecting hole 320. The adjusting element 33 is an adjusting hand wheel which is arranged on one side of the second clamping arm 322, i.e. on the left side as shown in fig. 4, and is arranged opposite to the blind rivet, and one end of the adjusting hand wheel is inserted into the second clamping arm 322 and is in threaded connection with one end of the blind rivet inserted into the first clamping arm 321. Preferably, a gasket 35 is further arranged at the joint of the adjusting handwheel and the second clamping arm 322. As shown in fig. 5, when the detection tool is used for detecting the perpendicularity between the axis of the speed reducer 6 and the front end cover surface of the speed reducer 6, the second connecting hole 22 is a circular hole. As shown in fig. 6, when the detection tool is used for detecting the perpendicularity of the axis of the motor and the front end cover surface of the motor 7 or the coaxiality of the front end boss of the motor, the second connecting hole 22 is a connecting hole approximately shaped like a Chinese character '8'.

As shown in fig. 8, when the detection tool is used for detecting the perpendicularity between the axis of the speed reducer 6 and the front end cover surface of the speed reducer 6, the fixing assembly 4 comprises a screw assembly 41, an elastic sleeve 42 and a handle 44. The screw assembly 41 includes a screw 411 and a support 412 coaxially sleeved, and an expansion plug 43 is connected to one end of the support 412. The elastic sleeve 42 is sleeved on the periphery of one end of the support body 412, which is connected with the expansion plug 43, and the elastic sleeve 42 is suitable for being in spline fit connection with the speed reducer 6. One end of the screw 411, which is far away from the support body 412, is provided with a third connecting hole 311, and the axis of the third connecting hole 311 is perpendicular to the axis of the screw 411. The handle 44 is adapted to be detachably coupled in the third coupling hole 311. The operation of the handle 44 facilitates the firm spline fit of the elastic sleeve 42 with the inside of the decelerator 6. As an alternative embodiment, handle 44 may not be included in the fixture, and only screw assembly 41 and elastomeric sleeve 42 may be included. As shown in fig. 9, when the detection tool is used for detecting the perpendicularity between the axis of the speed reducer 6 and the front end cover surface of the speed reducer 6, the center line of the clamping block component parallel to the front end cover surface of the speed reducer is parallel to the axis of the base body 1.

When the detection tool is used for detecting the circular runout of the spline tooth profile of the speed reducer 6 as shown in fig. 10 or when the detection tool is used for detecting the runout of the spline tooth profile of the motor shaft 73 as shown in fig. 13, the fixing assembly 4 comprises a fixing rod 41 'and a fastening nut 42', and the fixing rod 41 'is suitable for being inserted into a front end cover of the motor 7 or the front end cover of the speed reducer 6 and is locked and fixed by the fastening nut 42'. The end of the fixing rod 41 'connected with the second connecting hole 22 can be set to have different diameters as required, that is, a plurality of fixing rods 41' with different dimensions can be configured to meet the actual use requirement. As shown in fig. 10, 13 and 14, during detection, the measuring rod 8 is fixed by the rubber band 9, so that the size related to the spline bounce can be detected.

As shown in fig. 11 and 12, when the detection tool is used for detecting the perpendicularity of the motor axis and the front end cover surface of the motor 7 or the coaxiality of the boss of the front end surface, the center line of the clamping block component parallel to the front end surface forms an included angle with the axis of the base body 1. And the second connecting part 32 adopts the structure of the 8-shaped second connecting hole 22 as shown in fig. 6, at this time, a fixing piece is not needed, the motor shaft 71 is directly inserted into the second connecting hole 22, and the second connecting part 32 is enabled to clamp the motor shaft 71 by adjusting the hand wheel. During detection, the included angle between the clamping block component and the base body 1 is adjusted, and meanwhile, the position of the connecting component 3 on the base body 1 is adjusted. As shown in fig. 11, when the detection tool is used for detecting the perpendicularity of the motor axis and the front end cover surface of the motor 7, the dial indicator 5 is clamped in a clamping space 24 defined by two concave parts 23 of the clamping block component above the first connecting hole 12. As shown in fig. 12, when the detection tool is used for detecting the coaxiality of the motor axis and the boss of the front end cover surface of the motor 7, the dial indicator 5 is clamped in a clamping space 24 defined by two concave parts 23 of the clamping block component, which are positioned below the first connecting hole 12. When different detection items are carried out, only the clamping position needs to be adjusted, and the adjustment is more convenient.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (9)

1. The utility model provides a motor shaft extension end detects frock which characterized in that includes:

a base body (1) having a mounting portion (11) formed at one end thereof;

the dial gauge clamp assembly (2) comprises a clamping block part suitable for clamping the dial gauge (5) for detection and a fastener connected to the clamping block part and used for switching the clamping block part between a clamping state and a loosening state, and the dial gauge clamp assembly (2) is rotatably installed on the installation part (11);

coupling assembling (3), movably connect be in on base member (1), coupling assembling (3) are including first adapting unit (31), second adapting unit (32) and regulating part (33), be equipped with on first adapting unit (31) and be used for connecting the first connecting portion of base member (1), be equipped with on second adapting unit (32) and be used for connecting the motor shaft, or be used for and be connected the second connecting portion that fixed subassembly (4) of awaiting measuring reduction gear (6) internal spline or connecting motor (7) front end housing are connected, regulating part (33) with first adapting unit (31) clearance fit is in order to adjust the elasticity of second connecting portion.

2. The motor shaft extension end detection tool according to claim 1, wherein the base body (1) is rod-shaped, the mounting portion (11) is an L-shaped mounting structure arranged at one end of the base body (1), a first connecting hole (12) for connecting the fastener is formed in the mounting structure, and the axis of the first connecting hole (12) is perpendicular to the axis of the base body (1).

3. The motor shaft extension end detection tool according to claim 1, wherein the clamping block component comprises two clamping blocks (21) which are opposite and adjustable in distance, and a second connecting hole (22) for connecting the fastening piece is formed in the middle of each clamping block (21);

two arc-shaped concave parts (23) are formed in the end face, facing the other clamping block (21), of each clamping block (21), and the two concave parts (23) are respectively arranged at two ends of a second connecting hole (22) in each clamping block (21);

the second connecting holes (22) and the concave parts (23) on the two clamping blocks (21) are in one-to-one correspondence, and a clamping space (24) for clamping the dial indicator (5) is formed between the corresponding concave parts (23).

4. The motor shaft extension end detection tool according to claim 1, wherein the second connecting part (32) is a U-shaped clamping block (21) and comprises a first clamping arm (321) and a second clamping arm (322) which are arranged oppositely, and the second connecting part is a fourth connecting hole (320) defined between the first clamping arm (321) and the second clamping arm (322);

the first connecting part (31) is a pull nail, the first connecting part (31) is installed on one side of the first clamping arm (321) through a supporting ring (34), the first connecting part is a third connecting hole (311) formed in one end, far away from the first clamping arm (321), of the pull nail, and the axis of the third connecting hole (311) is perpendicular to the axis of the fourth connecting hole (320) and is not coplanar;

the adjusting part (33) is arranged on one side of the second clamping arm (322) and is provided with an adjusting hand wheel opposite to the pull nail, one end of the adjusting hand wheel is inserted into the second clamping arm (322) and is connected with one end of the first clamping arm (321) in a threaded manner through the pull nail.

5. The motor shaft extension end detection tool according to claim 2, wherein when the detection tool is used for detecting the verticality of the axis of the speed reducer (6) and the front end cover surface of the speed reducer (6), the fixing assembly (4) comprises:

the screw assembly (41) comprises a screw (411) and a support body (412) which are coaxially sleeved, and one end of the support body (412) is connected with an expansion plug (43);

the elastic sleeve (42) is sleeved on the periphery of one end, connected with the expansion plug (43), of the support body (412), and the elastic sleeve (42) is suitable for being in fit connection with the inner spline of the speed reducer (6).

6. The motor shaft extension end detection tool according to claim 5, wherein a third connecting hole (311) is formed in one end, far away from the support body (412), of the screw rod (411), and the axis of the third connecting hole (311) is perpendicular to the axis of the screw rod (411); the fixing assembly (4) further comprises:

a handle (44), said handle (44) being adapted to be removably attached within said third attachment aperture (311).

7. The motor shaft extension end detection tool according to claim 2, wherein when the detection tool is used for detecting the perpendicularity between the axis of the speed reducer (6) and the front end cover face of the speed reducer (6), the center line of the clamping block component, which is parallel to the front end cover face of the speed reducer (6), is parallel to the axis of the base body (1).

8. The motor shaft extension end detection tool according to claim 2, wherein when the detection tool is used for detecting the circular runout of the spline tooth profile of the speed reducer (6) or the runout of the spline tooth profile of the motor shaft (73), the fixing assembly (4) comprises a fixing rod (41 ') and a fastening nut (42'), and the fixing rod (41 ') is suitable for being inserted into a front end cover of the motor (7) or the front end cover of the speed reducer (6) and is locked and fixed by the fastening nut (42').

9. The motor shaft extension end detection tool according to claim 2, wherein when the detection tool is used for detecting the perpendicularity of the motor axis and the front end cover face of the motor (7) or the coaxiality of a boss of the front end cover face, a center line of the clamping block component, which is parallel to the front end cover face of the motor (7), and the axis of the base body (1) form an included angle.

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