CN203259341U - Auxiliary detection device for detecting axial drift of roller pin bearing - Google Patents
Auxiliary detection device for detecting axial drift of roller pin bearing Download PDFInfo
- Publication number
- CN203259341U CN203259341U CN 201320206409 CN201320206409U CN203259341U CN 203259341 U CN203259341 U CN 203259341U CN 201320206409 CN201320206409 CN 201320206409 CN 201320206409 U CN201320206409 U CN 201320206409U CN 203259341 U CN203259341 U CN 203259341U
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- China
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- main shaft
- needle bearing
- roller pin
- pin bearing
- detection device
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses an auxiliary detection device for detecting axial drift of a roller pin bearing. The device comprises a frame, a main shaft, a hanging piece and a power device, wherein the main shaft is rotatably arranged on the frame and is horizontally arranged, a mandrel used for sheathing a roller pin bearing to be detected and concentric with the main shaft is arranged on one end of the main shaft, the hanging piece is sheathed on the mandrel, the width of the hanging piece is the same with that of the roller pin bearing to be detected, a gap used for installing the roller pin bearing to be detected is reserved between the hanging piece and the mandrel, and the power device drives the main shaft to rotate. The auxiliary detection device for detecting axial drift of a roller pin bearing can simulate real movement of the roller pin bearing in a rotation pair and can be matched with a measuring device in use to measure the amount of axial drift of the roller pin bearing before the roller pin bearing is assembled, thereby achieving the purpose of controlling the quality of the roller pin bearing before assembly, avoiding material waste caused by problems found after assembly and labor intensity increase caused by repeated disassembly and assembly and effectively improving the stability of product quality.
Description
Technical field
The utility model relates to machinery manufacturing technology field, relates in particular to the axially auxiliary detection device of drift of a kind of needle bearing.
Background technology
Needle bearing is actually the roller bearing with cylindrical roller, and its diameter relatively, roller are not only carefully but also long, thereby this roller is called as needle roller, although it has less cross section, this kind bearing still has very high load bearing capacity, and therefore application is all arranged in multiple revolute pair.
The structure of needle bearing as shown in fig. 1; It is comprised of a retainer 01 and a plurality of needle roller 02 that is set in parallel on retainer; Wherein be provided with a plurality of parallel windows on retainer 01; Needle roller 02 just is contained in window; The many reasons such as tapering due to the precision of the depth of parallelism of each parallel windows and needle roller 02 itself; When the needle bearing revolute pair during in high-speed rotation; Being sleeved on parts on needle bearing can produce and significantly move axially tendency; This moves axially the axial drift tendency that tendency is needle bearing; If the both sides of needle bearing do not have block piece; The parts that are sleeved on so on needle bearing can move axially with respect to the needle bearing generation; This moves axially the axial drift that is needle bearing; Axially harm is very large for revolute pair in drift; For example in motorcycle engine; Connecting rod; Needle bearing and crank pin have formed revolute pair jointly; After producing axially drift, needle bearing can cause that connecting rod or crankshaft grinding are inclined to one side; The piston ring mill partially; Cause the abnormal sound of engine etc.; Badly influence the serviceable life of engine.
Therefore; Be necessary the axial drift of needle bearing is controlled; And also the axial drift performance of needle bearing is not carried out the means that reliable detection is controlled in actual applications at present; Main work in-process is controlled; Its axial dipole field effect will just can display after assembling is used; As the needle bearing in motorcycle engine the installation after; Could find abnormal voice by test-run a machine; Perhaps the use by a period of time the mill local derviation occurs and causes the parts premature failure and could find that the axial drift of needle bearing is excessive; This not only can cause the waste of material; Increase test-run a machine personnel's labour intensity; Also can cause the unstable of product quality simultaneously.
The utility model content
The purpose of this utility model is to provide the axially auxiliary detection device of drift of a kind of needle bearing, with before needle bearing assembling to its axial drift mensuration of testing, thereby because excessive each parts to revolute pair of the axial drift value of needle bearing produce harm, improve the stability of product after effectively avoiding assembling.
For solving above-mentioned prior art problem, the needle bearing that the utility model provides the axially auxiliary detection device of drift comprises:
Frame;
Be arranged at rotationally the main shaft on described frame, described main shaft is horizontally disposed with and the one end is provided with the axle that is set with for needle bearing to be detected, and described axle arranges with described main shaft is concentric;
Be sheathed on described axle and suspension member that width is identical with needle bearing width to be detected, be reserved with the gap of installing for needle bearing to be detected between described suspension member and described axle;
Drive the propulsion system of described main shaft rotation.
Preferably, in technique scheme, the other end of described main shaft is provided with power wheel, is provided with driving wheel on described propulsion system, and described driving wheel is connected by belt with the power wheel of described main shaft.
Preferably, in technique scheme, described axle is connected with described main shaft is dismantled and assembled.
Preferably, in technique scheme, described spindle nose is provided with to the inner taper hole that extends of main shaft, and the end that described axle is used for being connected with described main shaft is provided with the Mohs cone that coordinates with described taper hole.
Preferably, in technique scheme, described axle is connected with described main shaft key.
Preferably, in technique scheme, described propulsion system are servomotor, are provided with frequency converter and the time relay in the supply line of described servomotor and are used for controlling the switch that described servomotor rotates and reverse.
The needle bearing provided by the utility model axially auxiliary detection device of drift need to be used in conjunction with measurement mechanism, vernier caliper for example, and its concrete course of work is:
The needle bearing that needs are detected is sleeved in gap between axle and suspension member; That is the needle bearing inner ring is sleeved on axle; Suspension member is sleeved on the outer ring of needle bearing; And with the two ends of suspension member and the justify align of needle bearing; Then the device that turns on the power drives the main shaft rotation; Axle is rotated under the drive of main shaft; By needle bearing realized relatively rotate between axle and suspension member this moment; This can simulate the motion state of needle bearing in revolute pair; Propulsion system stop after driving the rotation that main shaft carries out the stipulated time; This moment is by the axial drift value of vernier caliper measurement suspension member with respect to needle bearing; And will this axial drift value and the maximum of the needle bearing of regulation allow drift value to compare to determine whether this needle bearing qualified.
This shows, the needle bearing provided by the utility model axially auxiliary detection device of drift can be simulated the real moving situation of needle bearing in revolute pair, and can before assembling, needle bearing carry out the measurement of axial drift value to it in conjunction with measurement mechanism, thereby the purpose that realization was namely controlled the quality of needle bearing before assembling, the increase of the assembly crewman's that the material waste of avoiding pinpointing the problems after assembling and causing and repeated disassembled and assembled cause labour intensity, the stability of effectively improving the quality of products simultaneously.
Description of drawings
Fig. 1 is the structural representation of needle bearing;
The structural representation of the auxiliary detection device that the needle bearing that Fig. 2 provides for the utility model embodiment axially drifts about.
Wherein: 01 is retainer, and 02 is needle roller, and 1 is power wheel, and 2 is main shaft, and 3 is axle, and 4 is needle bearing, and 5 is suspension member, and 6 is switch, and 7 is the time relay, and 8 is frequency converter, and 9 is servomotor, and 10 is driving wheel, and 11 is belt.
Embodiment
The purpose of this utility model is to provide the axially auxiliary detection device of drift of a kind of needle bearing, this auxiliary detection device comes the axial drift value of subsidiary needle bearing by the simulation real motion state of needle bearing in revolute pair, thereby the quality of the needle roller that is about to assembling is controlled in advance.
In order to make those skilled in the art person understand better scheme of the present utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Needle bearing in the utility model is the auxiliary detection device of drift axially; Be used for the axial drift value of needle bearing is carried out auxiliary detection; This device coordinates the detection that can realize the axial drift value of needle bearing with measurement mechanism (as vernier caliper); This needle bearing axially auxiliary detection device of drift mainly comprises frame; Main shaft 2; Axle 3; Suspension member 5 and propulsion system; Its mid frame is used for supporting whole device; Main shaft 2 is rotating to be arranged on frame; And the axis of main shaft 2 is in surface level; Axle 3 is arranged on an end of main shaft 2; And can be rotated under the drive of main shaft 2; Should be noted that; Axle 3 and main shaft 2 should arrange with one heart; To avoid axle 3 to rock, test generation is affected; Be provided with sheathed hole on suspension member 5; Suspension member 5 is located on axle 3 by sheathed borehole jack; And be reserved with the gap of installing for needle bearing to be detected between the sheathed hole of suspension member 5 and the outer wall of axle 3; The width of suspension member 5 is identical with the width of needle bearing to be detected; In the utility model embodiment, the width of suspension member and needle bearing all refers to suspension member 5 and needle bearing axial dimension; Propulsion system can drive main shaft 2 rotations.
Can measure the concrete axial drift value of needle bearing after the auxiliary detection device that the needle bearing that provides in above-described embodiment axially drifts about and measurement mechanism are used in conjunction with, be specially:
The needle bearing that needs are detected is sleeved in gap between axle 3 and suspension member 5; That is the needle bearing inner ring is sleeved on axle 3; Suspension member 5 is sleeved on the outer ring of needle bearing; And with the two ends of suspension member 5 and the justify align of needle bearing; Then the device that turns on the power drives main shaft 2 rotations; Axle 3 is rotated under the drive of main shaft 2; By needle bearing realized relatively rotate between axle 3 and suspension member 5 this moment; This can simulate the motion state of needle bearing in revolute pair; Propulsion system stop after driving the rotation that main shaft 2 carries out the stipulated time; This moment is by the axial drift value of vernier caliper measurement suspension member 5 with respect to needle bearing; And will this axial drift value and the maximum of the needle bearing of regulation allow drift value to compare to determine whether this needle bearing qualified.
This shows, the needle bearing that the utility model embodiment provides the axially auxiliary detection device of drift can be simulated the real moving situation of needle bearing in revolute pair, and can before assembling, needle bearing carry out the measurement of axial drift value to it in conjunction with measurement mechanism, thereby the purpose that realization was namely controlled the quality of needle bearing before assembling, the increase of the assembly crewman's that the material waste of avoiding pinpointing the problems after assembling and causing and repeated disassembled and assembled cause labour intensity, the stability of effectively improving the quality of products simultaneously.
The mode that propulsion system drive main shaft 2 rotations has multiple; For example propulsion system can directly be connected to drive main shaft 2 with main shaft 2 by shaft coupling and are rotated; Perhaps be rotated by gear driven main shaft 2; For simplification device; And reduce the integral production cost of device; In the auxiliary detection device that the needle bearing that provides in the present embodiment axially drifts about; The end that main shaft 2 does not arrange axle 3 is provided with power wheel 1; Be provided with belt grooves on power wheel 1; Be provided with driving wheel 10 on propulsion system; Pass through belt 11 transmissions between the power wheel 1 of driving wheel 10 and main shaft 2; Belt gear has advantages of absorbing vibration; This can reduce mechanical shock and the impact of bringing for test result; Thereby further improve the accuracy of detection of the axial drift value of needle bearing.
In actual production process, difference along with the needle bearing model, the inner ring of needle bearing and the diameter of outer ring are not identical yet, thereby the needle bearing of different model is carried out the detection of axial drift value, just need to use axle 3 and the suspension members 5 of different sizes, for this reason, the dismantled and assembled connection between the axle 3 in the present embodiment and main shaft 2, with change different axle 3 and with the supporting suspension member 5 of axle 3, thereby adapt to the detection of the needle bearing of different model.
Certainly, dismantled and assembled connected mode between axle 3 and main shaft 2 also has multiple, the key that for example provides in the present embodiment connects, be specifically as follows spline joint, be provided with endoporus on main shaft 2, and in main shaft 2 endoporus, spline is set, at axle 3 one end settings and the adaptive spline of spline, thereby realize that axle 3 is connected with key between main shaft 2, it is emphasized that needs in connection procedure to guarantee that main shaft 2 and axle 3 arrange with one heart; Another connected mode also is provided in the present embodiment, namely adopt the Mohs cone to connect, concrete, be provided with in main shaft 2 ends to the inner taper hole that extends of main shaft 2, the end that axle 3 is used for being connected with main shaft 2 is provided with the Morse taper shank that matches with taper hole, and owing to being taper fit, thereby the axle in this kind connected mode 3 and main shaft 2 can be dismantled very easily, and adopt the mode of Mohs cone connection after changing axle 3, the right alignment of main shaft 2 and axle 3 need not to readjust.
In order to eliminate the inertia effects of propulsion system when stopping operating; Propulsion system in the present embodiment adopt servomotor 9; Servomotor 9 can stop rapidly when input voltage is zero; Without rotation phenomenon; Thereby can eliminate the inertia impact that axial drift value test brings on needle bearing; For further prioritization scheme; Can realize that the axial drift value to needle bearing is tested under different rotating speeds; Also be provided with in the supply line of the servomotor 9 in the present embodiment for the frequency converter 8 of controlling motor speed; Also be provided with simultaneously the time relay 7 in the supply line of servomotor 9; To realize the accurate control to servomotor 9 rotation times.
For further optimisation technique scheme, realization to needle bearing clockwise and rotate counterclockwise the detection of all carrying out axial drift value on direction, the switch 6 of the servomotor 9 in the present embodiment comprises forward switch and reversal switch, servomotor 9 is rotated and reverse, thus the detection of the axial drift value when realizing respectively needle bearing being clockwise rotated and the axial drift value when rotating counterclockwise.
For example; When detecting being used for needle bearing between motorcycle engine crank pin and connecting rod; Axle 3 is equivalent to crank pin; Suspension member 5 is equivalent to connecting rod; For the operation conditions that makes needle bearing close to actual motion; The roughness on axle 3 surfaces; Circularity and cylindricity are all tried one's best consistent with the requirement of crank pin; The weight of suspension member 5; The roughness in the sheathed hole on suspension member 5; Circularity; And cylindricity should be as far as possible consistent in the connecting rod of reality; The rotating speed of setting main shaft 2 is 700r/s; Setting detection time is 2S; Then open the forward switch; Make servomotor 9 drive main shaft 2 and carry out forward; After stopping, with vernier caliper, the side-play amount of suspension member 5 being measured by servomotor 9; Thereby draw the axial drift value of needle bearing; And then open reverser; Making servomotor 9 drive main shaft 2 reverses; After stopping, with vernier caliper, the side-play amount of suspension member 5 being measured by servomotor 9; If the side-play amount of twice measurement is all less than 3mm; So just can think that this needle bearing is qualified.
Certainly; This is only the test case of having enumerated the needle bearing at connecting rod and crank pin on motorcycle engine place; Its main shaft 2 speed settings of needle bearing for the different application occasion; The criterion of acceptability of rotational time setting and axial drift value is all different; The maximum axial drift value that the actual axle measured need to be allowed in drift value and the corresponding application scenario compares; Whether qualified finally just can draw; And should make the roughness in the sheathed hole on axle 3 and suspension member 5 in the process of testing as far as possible; Circularity and cylindricity should be as far as possible consistent with the parts in the actual rotation pair.
Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (6)
1. the auxiliary detection device that needle bearing axially drifts about, is characterized in that, comprising:
Frame;
Be arranged at rotationally the main shaft (2) on described frame, described main shaft (2) is horizontally disposed with and the one end is provided with the axle (3) that is set with for needle bearing to be detected, described axle (3) and the concentric setting of described main shaft (2);
Be sheathed on described axle (3) and the width suspension member (5) identical with needle bearing width to be detected, be reserved with the gap of installing for needle bearing to be detected between described suspension member (5) and described axle (3);
Drive the propulsion system of described main shaft (2) rotation.
2. the axial auxiliary detection device of drift of needle bearing according to claim 1, it is characterized in that, the other end of described main shaft (2) is provided with power wheel (1), be provided with driving wheel (10) on described propulsion system, described driving wheel (10) is connected by belt (11) with the power wheel (1) of described main shaft (2).
3. the auxiliary detection device of the axial drift of needle bearing according to claim 1, is characterized in that described axle (3) and dismantled and assembled connection of described main shaft (2).
4. the axial auxiliary detection device of drift of needle bearing according to claim 3, it is characterized in that, described main shaft (2) end is provided with to the inner taper hole that extends of main shaft (2), and the end that described axle (3) is used for being connected with described main shaft (2) is provided with the Mohs cone that coordinates with described taper hole.
5. the auxiliary detection device of the axial drift of needle bearing according to claim 3, is characterized in that, described axle (3) is connected with described main shaft (2) key.
6. the axial auxiliary detection device of drift of needle bearing according to claim 1, it is characterized in that, described propulsion system are servomotor (9), are provided with frequency converter (8) and the time relay (7) in the supply line of described servomotor (9) and are used for controlling the switch (6) that described servomotor (9) rotates and reverse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320206409 CN203259341U (en) | 2013-04-22 | 2013-04-22 | Auxiliary detection device for detecting axial drift of roller pin bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320206409 CN203259341U (en) | 2013-04-22 | 2013-04-22 | Auxiliary detection device for detecting axial drift of roller pin bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203259341U true CN203259341U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320206409 Expired - Lifetime CN203259341U (en) | 2013-04-22 | 2013-04-22 | Auxiliary detection device for detecting axial drift of roller pin bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN203259341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234754A (en) * | 2013-04-22 | 2013-08-07 | 青岛德盛机械制造有限公司 | Auxiliary detection device for detecting axial drift of needle bearing |
-
2013
- 2013-04-22 CN CN 201320206409 patent/CN203259341U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234754A (en) * | 2013-04-22 | 2013-08-07 | 青岛德盛机械制造有限公司 | Auxiliary detection device for detecting axial drift of needle bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |