CN215338264U - Axial play detection mechanism for bearing - Google Patents
Axial play detection mechanism for bearing Download PDFInfo
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- CN215338264U CN215338264U CN202121541180.6U CN202121541180U CN215338264U CN 215338264 U CN215338264 U CN 215338264U CN 202121541180 U CN202121541180 U CN 202121541180U CN 215338264 U CN215338264 U CN 215338264U
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Abstract
The utility model discloses an axial clearance detection mechanism for a bearing, which comprises a fixed frame, wherein a lifting assembly is fixed on the fixed frame, the lifting assembly is connected with a detection assembly, a detection fixed table is arranged below the detection assembly, and an ejection assembly is arranged below the detection fixed table. The utility model has the beneficial effects that: through the descending of lifting unit drive detection subassembly and ejecting subassembly drive second ejector pin from the quick jack-up in the below of bearing, make displacement sensor's probe jack-up that makes progress to produce an ascending displacement, realize the detection of the axial internal clearance of bearing, whole detection mechanism easy operation, convenience detect accurately, degree of automation is high.
Description
Technical Field
The utility model relates to the technical field of bearing clearance detection, in particular to an axial clearance detection mechanism for a bearing.
Background
The bearing play is the clearance between the bearing rolling elements and the bearing inner and outer race shells. The bearing play refers to a movement amount when the bearing is not mounted on the shaft or the bearing housing, the inner ring or the outer ring is fixed, and then the non-fixed bearing play is moved in the radial direction or the axial direction. According to the direction of movement, radial play and axial play can be divided. Axial play refers to a bearing which is not pre-tensioned and can bear axial loads in both directions, and the axial internal play G is the average value of the axial distances of one ring relative to the other ring from one axial limit position to the opposite limit position when no external load is applied. Before the bearing is installed and used, the axial clearance of the bearing generally needs to be detected, because the size of the clearance has influence on the performances of the bearing, such as rolling fatigue life, temperature rise, noise, vibration and the like. The conventional detection method relying on manual push-pull has the disadvantages of poor detection precision, large manual labor amount, high cost and low automation degree, and cannot meet the requirement of axial clearance detection of the bearing.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide an axial play detection mechanism for a bearing, which solves the problems set forth in the background art described above.
In order to achieve the purpose, the utility model provides the following technical scheme: an axial play detection mechanism for a bearing comprises a fixed frame, wherein a lifting assembly is fixed on the fixed frame and connected with a detection assembly, a detection fixed table is arranged below the detection assembly, and an ejection assembly is arranged below the detection fixed table;
the lifting assembly comprises a lifting cylinder; the lifting cylinder is fixed at the top end of the fixing frame, a vertical guide rail is arranged on the side face, close to a piston rod of the lifting cylinder, of the fixing frame, a first sliding block and a second sliding block which are connected up and down are connected onto the guide rail in a sliding mode, and the upper end of the first sliding block is connected with the piston rod of the lifting cylinder;
the detection assembly comprises a fixed plate, the fixed plate is fixed on a first sliding block, a bracket is arranged above the fixed plate, a displacement sensor is supposed to be arranged on the bracket, a vertical first ejector rod is arranged below a probe at the lower end of the displacement sensor, a first connecting block fixed on a second sliding block is arranged at the lower end of the first ejector rod, and a detection head designed according to the coaxiality of the first ejector rod is arranged on the connecting block;
the ejection assembly comprises a mounting frame, an ejection cylinder vertically arranged is fixed on the mounting frame, a side linear guide rail close to a piston rod of the ejection cylinder is arranged on the mounting frame, a second connecting block is fixed on a sliding block of the linear guide rail, the lower end of the second connecting block is connected with the piston rod end of the ejection cylinder, an adjusting block is arranged at the upper end of the second connecting block, and a second ejector rod vertically arranged is fixed on the adjusting block.
Further preferably, the side edges of the first sliding block and the second sliding block are connected with connecting pieces, and waist-shaped holes which are arranged up and down are formed in the connecting pieces.
Preferably, the lower end of the first sliding block is provided with a protrusion of an inverted T-shaped structure, and the second sliding block is provided with a groove matched with the protrusion of the T-shaped structure.
It is further preferred that the height of the projection extending into the transverse formation of the recess is less than the depth of the slot of the recess for receiving the transverse formation of the projection.
Preferably, a protective cover sleeved on the outer side of the first ejector rod is arranged below the fixing plate, and a vertical rectangular groove is formed in the side edge, close to the second sliding block, of the protective cover.
Preferably, a chassis is arranged below the protective cover, and an annular cushion block is arranged in the middle of the lower portion of the chassis.
Preferably, the upper end of the first ejector rod is provided with a circular groove, and the diameter of the circular groove is larger than that of the probe.
Further preferably, a limit block is arranged on the side edge, close to the fixing frame, of the detection fixing table.
Preferably, the adjusting block is provided with a cross-shaped clamping hole.
Has the advantages that: according to the axial play detection mechanism for the bearing, the lifting assembly drives the detection assembly to descend and the ejection assembly drives the second ejector rod to rapidly eject from the lower direction of the bearing, so that the probe of the displacement sensor is ejected upwards, an upward displacement is generated, the axial play of the bearing is detected, and the whole detection mechanism is simple and convenient to operate, accurate in detection and high in automation degree.
Drawings
Fig. 1 is a schematic axial structure diagram of an axial play detection mechanism for a bearing according to an embodiment of the present invention;
FIG. 2 is another schematic axial play detecting mechanism for a bearing according to an embodiment of the present invention;
fig. 3 is a front view structural schematic diagram of the axial play detection mechanism for a bearing disclosed in the embodiment of the utility model;
FIG. 4 is a schematic structural diagram of a lifting assembly and a detection assembly according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a detection fixing table and an ejection assembly according to an embodiment of the present invention.
Reference numerals: 1-a fixed frame, 2-a lifting component, 21-a lifting cylinder, 22-a guide rail, 23-a first sliding block, 231-a protrusion, 24-a second sliding block, 241-a groove, 25-a connecting sheet, 3-a detection component, 31-a fixed plate, 32-a support, 33-a displacement sensor, 331-a probe, 34-a first ejector rod, 35-a first connecting block, 36-a detection head, 37-a protective cover, 371-a chassis, 4-a detection fixed platform, 41-a limiting block, 5-an ejection component, 51-a mounting frame, 52-an ejection cylinder, 53-a linear guide rail, 54-a second connecting block, 55-an adjusting block and 56-a second ejector rod.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-5, an axial play detection mechanism for a bearing includes a fixed frame 1, a lifting assembly 2 is fixed on the fixed frame 1, the lifting assembly 2 is connected with a detection assembly 3, a detection fixed table 4 is arranged below the detection assembly 3, and an ejection assembly 5 is arranged below the detection fixed table 4;
the lifting assembly 2 comprises a lifting cylinder 21; the lifting cylinder 21 is fixed at the top end of the fixed frame 1, a vertical guide rail 22 is arranged on the side surface of the fixed frame 1 close to the piston rod of the lifting cylinder 21, a first sliding block 23 and a second sliding block 24 which are connected up and down are connected on the guide rail 22 in a sliding manner, and the upper end of the first sliding block 23 is connected with the piston rod of the lifting cylinder 21;
the detection assembly 3 comprises a fixed plate 31, the fixed plate 31 is fixed on a first slide block 23, a bracket 32 is arranged above the fixed plate 31, a displacement sensor 33 is supposed on the bracket, a vertical first ejector rod 34 is arranged below a lower end probe 331 of the displacement sensor 33, a first connecting block 35 fixed on a second slide block 24 is arranged at the lower end of the first ejector rod 34, and a detection head 36 designed for coaxiality of the first ejector rod 34 is arranged on the connecting block 35;
the ejection assembly 5 comprises a mounting frame 51, an ejection cylinder 52 vertically arranged is fixed on the mounting frame 51, a side linear guide rail 53 of the mounting frame 51, which is close to a piston rod of the ejection cylinder 52, is fixed on a slide block of the linear guide rail 53, a second connecting block 54 is fixed on a lower end of the second connecting block 54, and a piston rod end of the ejection cylinder 52 is connected with an upper end of the second connecting block 54, and a second ejector rod 56 vertically arranged is fixed on the upper end of the second connecting block 54.
In this application, axial play detection mechanism is used for the detection of the axial play of bearing, fixes the bearing through detecting fixed station 4, then descends through lifting unit 2 drive detection subassembly 3, makes and detects the inner circle that first 36 pushed down the bearing, ejecting subassembly 5 drive second ejector pin 56 from the lower of bearing to push up fast once, makes and detects first 36 upsets, and then through first ejector pin 34 upsets, makes displacement sensor 33's probe 331 jack-up to produce an ascending displacement, the axial play of bearing promptly. In this application, axial play detection mechanism easy operation detects accurately.
Preferably, the side edges of the first slider 23 and the second slider 24 are connected with a connecting piece 25, and a waist-shaped hole arranged up and down is formed in the connecting piece for connecting the first slider 23 and the second slider 24, so that relative movement between the first slider 23 and the second slider 24 is facilitated.
Preferably, the lower end of the first slider 23 is provided with a protrusion 231 with an inverted T-shaped structure, the second slider 24 is provided with a groove 241 with a T-shaped structure matching with the protrusion 231, the height of the protrusion 231 extending into the transverse structure of the groove 241 is smaller than the depth of a groove hole of the groove 241 for accommodating the transverse structure of the protrusion 231, so that when the detection head 36 is stressed, the first connecting block 35 and the second slider 24 can move upwards, and the first ejector rod 34 can jack up the probe 331 upwards.
Preferably, a protection cover 37 sleeved outside the first push rod 34 is arranged below the fixing plate 31 and used for protecting the first push rod 34, and a vertical rectangular groove is formed in the side edge, close to the second slide block 24, of the protection cover 37, so that the first connecting block 35 can move up and down.
Preferably, a chassis 371 is arranged below the protective cover 37, and an annular cushion block is arranged in the middle of the lower part of the chassis 371, so that the detection head 36 is ensured not to be inclined, the descending position of the detection assembly 3 can be limited, and the bearing is ensured not to be crushed.
Preferably, the upper end of the first push rod 34 is provided with a circular groove, the diameter of which is greater than that of the probe 331, so that the probe 33 can be vertically pushed upwards by the first push rod 34.
Preferably, a limit block 41 is arranged on the side edge of the detection fixing table 4 close to the fixing frame 1, and is used for limiting the descending position of the detection assembly 3.
Preferably, the adjusting block 55 is provided with a cross-shaped clamping hole, so that the height position of the second top rod 56 can be conveniently adjusted.
In this application, the work flow of the axial play detection mechanism for a bearing is: fixing the bearing on the detection fixing table 4, enabling the lifting assembly 2 to act, enabling the lifting cylinder 21 to drive the first sliding block 23 and the second sliding block 24 to descend, enabling the first sliding block 23 and the second sliding block 24 to drive the detection assembly 3 to integrally descend, and stopping moving downwards when the detection head 36 is pressed on the surface of the bearing; when the ejection assembly 5 acts, the ejection cylinder 52 drives the second connecting block 54 to rapidly eject upwards, so as to drive the second ejector rod 56 to rapidly eject upwards against the lower surface of the bearing, thereby achieving the rapid vertical extension and contraction of the second ejector rod 56, and further enabling the inner ring of the bearing to generate an upward displacement; the displacement generated by the bearing can drive the detection head 36 to generate an upward displacement, the detection head 36 drives the probe 331 to generate an upward displacement through the first connecting block 35 and the first ejector rod 34 thereon, and the displacement generated by the probe 331 is displayed on the displacement sensor 33, which is the value of the axial play of the detected bearing.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall be included in the contents of the present invention within the scope of the protection of the present invention.
Claims (9)
1. An axial play detection mechanism for a bearing, characterized in that: the device comprises a fixing frame (1), wherein a lifting assembly (2) is fixed on the fixing frame (1), the lifting assembly (2) is connected with a detection assembly (3), a detection fixing table (4) is arranged below the detection assembly (3), and an ejection assembly (5) is arranged below the detection fixing table (4);
the lifting assembly (2) comprises a lifting cylinder (21); the lifting air cylinder (21) is fixed at the top end of the fixing frame (1), a vertical guide rail (22) is arranged on the side face, close to a piston rod of the lifting air cylinder (21), of the fixing frame (1), a first sliding block (23) and a second sliding block (24) which are connected up and down are connected onto the guide rail (22) in a sliding mode, and the upper end of the first sliding block (23) is connected with the piston rod of the lifting air cylinder (21);
the detection assembly (3) comprises a fixing plate (31), the fixing plate (31) is fixed on a first sliding block (23), a support (32) is arranged above the fixing plate (31), a displacement sensor (33) is supposed on the support, a vertical first ejector rod (34) is arranged below a lower end probe (331) of the displacement sensor (33), a first connecting block (35) fixed on a second sliding block (24) is arranged at the lower end of the first ejector rod (34), and a detection head (36) designed for coaxiality of the first ejector rod (34) is arranged on the connecting block (35);
the ejection assembly (5) comprises a mounting frame (51), an ejection cylinder (52) vertically arranged is fixed on the mounting frame (51), a side linear guide rail (53) close to a piston rod of the ejection cylinder (52) of the mounting frame (51) is fixed on a slide block of the linear guide rail (53), a second connecting block (54) is fixed on a lower end of the second connecting block (54) and connected with a piston rod end of the ejection cylinder (52), an adjusting block (55) is arranged at the upper end of the second connecting block (54), and a second ejection rod (56) vertically arranged is fixed on the adjusting block.
2. An axial play detection mechanism for a bearing according to claim 1, characterized in that: the side edges of the first sliding block (23) and the second sliding block (24) are connected with connecting pieces (25), and waist-shaped holes which are arranged up and down are formed in the connecting pieces.
3. An axial play detection mechanism for a bearing according to claim 1, characterized in that: the lower end of the first sliding block (23) is provided with a protrusion (231) with an inverted T-shaped structure, and the second sliding block (24) is provided with a groove (241) which is matched with the protrusion (231) and has the T-shaped structure.
4. An axial play detection mechanism for a bearing according to claim 3, characterized in that: the height of the protrusion (231) extending into the transverse structure of the groove (241) is less than the depth of the groove hole of the groove (241) for accommodating the transverse structure of the protrusion (231).
5. An axial play detection mechanism for a bearing according to claim 1, characterized in that: the protection cover (37) sleeved outside the first ejector rod (34) is arranged below the fixing plate (31), and a vertical rectangular groove is formed in the side edge, close to the second sliding block (24), of the protection cover (37).
6. An axial play detection mechanism for a bearing according to claim 5, characterized in that: a chassis (371) is arranged below the protective cover (37), and an annular cushion block is arranged in the middle of the lower part of the chassis (371).
7. An axial play detection mechanism for a bearing according to claim 1, characterized in that: the upper end of the first ejector rod (34) is provided with a circular groove, and the diameter of the circular groove is larger than that of the probe (331).
8. An axial play detection mechanism for a bearing according to claim 1, characterized in that: and a limit block (41) is arranged on the side edge of the detection fixing table (4) close to the fixing frame (1).
9. An axial play detection mechanism for a bearing according to claim 1, characterized in that: the adjusting block (55) is provided with a cross-shaped clamping hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121541180.6U CN215338264U (en) | 2021-07-07 | 2021-07-07 | Axial play detection mechanism for bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121541180.6U CN215338264U (en) | 2021-07-07 | 2021-07-07 | Axial play detection mechanism for bearing |
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| Publication Number | Publication Date |
|---|---|
| CN215338264U true CN215338264U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121541180.6U Active CN215338264U (en) | 2021-07-07 | 2021-07-07 | Axial play detection mechanism for bearing |
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| CN (1) | CN215338264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636399A (en) * | 2022-05-17 | 2022-06-17 | 杭州泰尚智能装备有限公司 | New energy vehicle electronic water pump rotor axial clearance detection device and control method thereof |
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2021
- 2021-07-07 CN CN202121541180.6U patent/CN215338264U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636399A (en) * | 2022-05-17 | 2022-06-17 | 杭州泰尚智能装备有限公司 | New energy vehicle electronic water pump rotor axial clearance detection device and control method thereof |
| CN114636399B (en) * | 2022-05-17 | 2022-11-18 | 杭州泰尚智能装备股份有限公司 | New energy vehicle electronic water pump rotor axial clearance detection device and control method thereof |
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