Needle bearing assembly detection mechanism

Abstract

The utility model relates to the technical field of needle bearing detection, and more specifically relates to a needle bearing assembly detection mechanism comprising a rotating shaft; the first fixing assembly is arranged corresponding to the rotating shaft, and a gap for fixing a bearing to be detected is reserved between the first fixing assembly and the rotating shaft; the second fixing assembly is arranged corresponding to the rotating shaft; the driving mechanism is connected with the rotating shaft and is used for driving the rotating shaft to rotate; and the pressure detection mechanism is correspondingly arranged between the first fixing assembly and the second fixing assembly and abuts against the rotating shaft. The utility model discloses a needle bearing assembly detection mechanism, and aims to solve the problem of low accuracy of a needle bearing detection mechanism in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of needle roller bearing detection, and more specifically, to a needle roller bearing assembly detection mechanism. Background Art

[0002] Bearings are an important component in mechanical equipment. They are installed between parts that produce relative rotation. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement and ensure its rotation accuracy.

[0003] The Chinese invention patent with application number CN103586219A discloses a needle roller bearing needle roller missing installation detection machine, including: a conveying device, a detection table, a detection device, a qualified product collection box and an unqualified product collection box. The conveying device is provided with a conveyor belt, and the conveyor belt transports the bearings to be detected to the detection table. The detection table includes a detection table and a mechanical pusher, and the mechanical pusher is installed on the side frame of the detection table. The detection device includes a detection irradiation device and a receiving induction device. The detection irradiation device is installed at the lower end of the detection table. It irradiates the detection irradiation device at the lower end of the detection table to the needle roller bearings to be detected on the detection table, and transmits the received light signal to the induction controller. The induction controller controls the mechanical pusher to classify the qualified and unqualified needle roller bearings into qualified products respectively.

[0004] However, the above needle bearing needle missing installation detection machine was found to have a low detection accuracy during actual detection. Utility Model Content

[0005] The main purpose of the utility model is to provide a needle roller bearing assembly detection mechanism, aiming to solve the problem of low accuracy of the needle roller bearing detection mechanism in the prior art.

[0006] In order to solve the above technical problems, a needle roller bearing assembly detection mechanism is proposed, comprising: a rotating shaft;

[0007] A first fixing component is arranged corresponding to the rotating shaft, and a gap is left between the first fixing component and the rotating shaft for fixing the bearing to be tested;

[0008] A second fixing component is arranged corresponding to the rotating shaft;

[0009] A driving mechanism, connected to the rotating shaft, and used to drive the rotating shaft to rotate;

[0010] The pressure detection mechanism is correspondingly arranged between the first fixing component and the second fixing component and abuts against the rotating shaft.

[0011] In any of the above technical solutions, further, the first fixing component includes:

[0012] at least one first abutment component and at least one second abutment component, and the total number of the first abutment components and the second abutment components is greater than or equal to three;

[0013] The first abutment assembly and the second abutment assembly are correspondingly arranged at different positions on the circumference of the rotating shaft, and the first abutment assembly and the second abutment assembly are both used to abut against the bearing to be detected at the gap;

[0014] The first abutting component is fixedly arranged, and the second abutting component is movably arranged.

[0015] In any of the above technical solutions, further, the second fixing component includes:

[0016] at least one third abutment assembly and at least one fourth abutment assembly, and the total number of the third abutment assembly and the fourth abutment assembly is greater than or equal to three;

[0017] The third abutting assembly and the fourth abutting assembly are correspondingly arranged at different positions on the circumference of the rotating shaft, and both the third abutting assembly and the fourth abutting assembly abut against the rotating shaft;

[0018] The third abutting assembly is fixedly arranged, and the fourth abutting assembly is movably arranged.

[0019] In any of the above technical solutions, further, the pressure detection mechanism includes:

[0020] A clamping member, arranged corresponding to the rotating shaft and slidably arranged on the guide member;

[0021] The guide member is arranged on a side of the clamping member away from the rotating shaft;

[0022] The pressure sensor is arranged on the guide member and abuts against the clamping member.

[0023] In any of the above technical solutions, further, the pressure detection mechanism also includes:

[0024] The telescopic cylinder is connected to the guide member and is used to drive the guide member to move.

[0025] In any of the above technical solutions, further, the pressure detection mechanism also includes:

[0026] A spring is fixed to the guide member, and the pressure sensor is fixed to the spring.

[0027] The beneficial effects are:

[0028] 1. The needle roller bearing assembly detection mechanism of the utility model flexibly fixes the two ends of the rotating shaft through the first fixing component and the second fixing component, and clamps the receiving rotating bearing at one end of the rotating shaft. Under the drive of the driving mechanism, the vibration force output when the rotating shaft rotates is detected by the pressure detection mechanism, and the qualification of the bearing is determined by the detection result.

[0029] 2. When the quality of the bearing to be tested is qualified, the pressure detected by the pressure testing mechanism will vary within a smaller range, and the test value will tend to a fixed value; when the quality of the bearing to be tested is unqualified, the pressure detected by the pressure testing mechanism will vary within a larger range, and the test value will change significantly back and forth.

[0030] 3. The detection method is simple and the detection accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 This is a first-view stereoscopic structural diagram of a needle roller bearing assembly detection mechanism of the utility model;

[0033] Figure 2 It is a second-viewing perspective stereoscopic structural diagram of a needle roller bearing assembly detection mechanism of the utility model.

[0034] The following are the descriptions of the reference numerals:

[0035] 1. Rotation axis;

[0036] 2. First fixing assembly; 201. First abutting assembly; 202. Second abutting assembly;

[0037] 3. Second fixing assembly; 301. Third abutting assembly; 302. Fourth abutting assembly;

[0038] 4. Driving mechanism;

[0039] 5. Pressure detection mechanism; 501. Clamp; 502. Guide; 503. Pressure sensor; 504. Telescopic cylinder; 505. Spring. DETAILED DESCRIPTION

[0040] Below, the example embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments in 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.

[0041] It should be noted that, as shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not specifically refer to the singular, but may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements.

[0042] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0045] The utility model proposes a needle roller bearing assembly detection mechanism, which softly fixes a rotating shaft through a first fixing component and a second fixing component, and then detects the pressure generated by the vibration amplitude when the rotating shaft rotates through a pressure detection mechanism, so as to detect whether the bearing assembly is qualified or not, and the detection accuracy is high.

[0046] A needle roller bearing assembly detection mechanism of the present application is described in detail through the following embodiments.

[0047] In this embodiment, if Figure 1 and Figure 2 As shown, the needle roller bearing assembly detection mechanism comprises: a rotating shaft 1;

[0048] The first fixing component 2 is arranged corresponding to the rotating shaft 1, and a gap is left between the first fixing component 2 and the rotating shaft 1 for fixing the bearing to be tested;

[0049] A second fixing component 3, arranged corresponding to the rotating shaft 1;

[0050] A driving mechanism 4, connected to the rotating shaft 1, and used to drive the rotating shaft 1 to rotate;

[0051] The pressure detection mechanism 5 is correspondingly disposed between the first fixing component 2 and the second fixing component 3 , and abuts against the rotating shaft 1 .

[0052] In the present technical solution, the needle bearing assembly detection mechanism is also provided with a base, the first fixed component 2 and the second fixed component 3 are symmetrical on the base, the rotating shaft 1 is passed through the first fixed component 2 and the second fixed component 3, a gap is left between the first fixed component 2 and the rotating shaft 1 for installing the bearing to be detected, and the second fixed component 3 abuts against the peripheral side of the rotating shaft 1. The driving mechanism 4 is a belt driving mechanism 4, which is fixed on the left side of the second fixed component 3. The pressure detection mechanism 5 is arranged on one side of the rotating shaft 1, and is correspondingly arranged between the first fixed component 2 and the second fixed component 3. The first fixed component 2 and the second fixed component 3 flexibly fix the rotating shaft 1, so that there is space for the rotating shaft 1 to vibrate up and down and / or forward and backward.

[0053] During testing, the bearing to be tested is installed in the gap between the rotating shaft 1 and the first fixed component 2. At this time, the inner and outer surfaces of the bearing to be tested are respectively in contact with the side walls of the rotating shaft 1 and the side walls of the first fixed component 2. When the tested bearing is an unqualified bearing, the rotating shaft 1 will be affected by the bearing during rotation and will produce a certain amplitude of vibration. At this time, the pressure value detected by the pressure detection mechanism 5 abutting on the rotating shaft 1 will increase or change within a larger range. When the tested bearing is a qualified bearing, the rotating shaft 1 can rotate smoothly, and the pressure value detected by the pressure detection mechanism 5 is small and tends to be stable.

[0054] In this embodiment, the first fixing component 2 includes:

[0055] At least one first abutting component 201 and at least one second abutting component 202, and the total number of the first abutting components 201 and the second abutting components 202 is greater than or equal to three;

[0056] The first abutting assembly 201 and the second abutting assembly 202 are correspondingly arranged at different positions on the circumference of the rotating shaft 1, and the first abutting assembly 201 and the second abutting assembly 202 are both used to abut against the bearing to be detected at the gap;

[0057] The first abutting component 201 is fixedly arranged, and the second abutting component 202 is movably arranged.

[0058] In the present technical solution, the number of the first abutment component 201 and the number of the second abutment component 202 are both three, and the six components are evenly arranged on the right side end of the rotating shaft 1. The three first abutment components 201 are fixed below the horizontal plane where the axis of the rotating shaft 1 is located, and the three second abutment components 202 are fixed above the horizontal plane where the axis of the rotating shaft 1 is located, so that the rotating shaft 1 can vibrate upward, and in this way, the rotating shaft 1 can be fixed on the base based on the three first abutment components 201, thereby avoiding resonance of the rotating shaft 1 caused by the drive of the driving mechanism 4.

[0059] The first abutment component 201 is directly fixed on the base, and the second abutment component 202 is fixed on the base through a spring, so that during detection, the first abutment component 201 and the bearing to be detected form a hard support, and the second abutment component 202 and the bearing to be detected form a soft support.

[0060] In this embodiment, the second fixing component 3 includes:

[0061] at least one third abutting component 301 and at least one fourth abutting component 302, and the total number of the third abutting components 301 and the fourth abutting components 302 is greater than or equal to three;

[0062] The third abutting assembly 301 and the fourth abutting assembly 302 are correspondingly arranged at different positions around the rotating shaft 1, and both the third abutting assembly 301 and the fourth abutting assembly 302 abut against the rotating shaft 1;

[0063] The third abutting assembly 301 is fixedly arranged, and the fourth abutting assembly 302 is movably arranged.

[0064] In the present technical solution, the third abutment assembly 301 and the fourth abutment assembly 302 are both set in three numbers, and the six assemblies are evenly arranged on the sitting side end of the rotating shaft 1 in a circumference, and the three third abutment assemblies 301 are fixed below the horizontal plane where the axis of the rotating shaft 1 is located, and the three fourth abutment assemblies 302 are fixed above the horizontal plane where the axis of the rotating shaft 1 is located, so that the rotating shaft 1 can vibrate upward, and in this way, the rotating shaft 1 can be fixed on the base based on the three third abutment assemblies 301, thereby avoiding the resonance of the rotating shaft 1 caused by the drive of the driving mechanism 4.

[0065] The third abutment component 301 is directly fixed on the base, and the fourth abutment component 302 is fixed on the base through a spring, so that during detection, the third abutment component 301 and the bearing to be detected form a hard support, and the fourth abutment component 302 and the bearing to be detected form a soft support.

[0066] The first abutting assembly 201, the second abutting assembly 202, the third abutting assembly 301 and the fourth abutting assembly 302 all include: a bracket and a rotating wheel;

[0067] The bracket is U-shaped, and the rotating wheel is rotatably arranged in the middle of the bracket. The brackets of the first abutting assembly 201 and the third abutting assembly 301 are fixed on the base, and the brackets of the second abutting assembly 202 and the fourth abutting assembly 302 are connected to the base through two springs.

[0068] In this embodiment, the pressure detection mechanism 5 includes:

[0069] The clamping member 501 is arranged corresponding to the rotating shaft 1 and is slidably arranged on the guide member 502;

[0070] The guide member 502 is arranged on a side of the clamping member 501 away from the rotating shaft 1;

[0071] The pressure sensor 503 is disposed on the guide member 502 and abuts against the clamping member 501;

[0072] The spring 505 is fixed to the guide member 502 , and the pressure sensor 503 is fixed to the spring 505 .

[0073] In the technical solution, the guide member 502 is arranged between the first fixing assembly 2 and the second fixing assembly 3. The guide member 502 extends downward and is provided with four guide posts. The clamp 501 is K-shaped and arranged horizontally. The clamp 501 is provided with four guide holes. The clamp 501 is slidably arranged on the guide posts of the guide member 502. The pressure sensor 503 is fixed to the guide member 502 by a spring 505, and the bottom surface of the pressure sensor 503 abuts against the top surface of the clamp 501. When the rotating shaft 1 vibrates, the rotating shaft 1 will deviate upward and then fall back. During this process, the pressure value detected by the pressure sensor 503 will first increase and then decrease.

[0074] In some technical solutions, the pressure sensor 503 is fixed on the base and directly abuts against the upper surface of the clamp 501 .

[0075] In this embodiment, the pressure detection mechanism 5 further includes:

[0076] The telescopic cylinder 504 is connected to the guide member 502 and is used to drive the guide member 502 to move.

[0077] In the present technical solution, the telescopic cylinder 504 is vertically arranged between the first fixed component 2 and the second fixed component 3, the guide member 502 is fixed on the telescopic shaft of the telescopic cylinder 504, the spring 505 is fixed on the guide member 502, and the pressure sensor 503 is connected to the spring 505. This arrangement is used to adjust the relative position of the pressure sensor 503 and the clamp 501, and adjust the contact pressure between the two.

[0078] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A needle roller bearing assembly detection mechanism, characterized in that: include: A rotating shaft (1); A first fixing component (2) is arranged corresponding to the rotating shaft (1), and a gap is left between the first fixing component (2) and the rotating shaft (1) for fixing the bearing to be tested; A second fixing component (3) is arranged corresponding to the rotating shaft (1); A driving mechanism (4) connected to the rotating shaft (1) and used to drive the rotating shaft (1) to rotate; The pressure detection mechanism (5) is correspondingly arranged between the first fixing component (2) and the second fixing component (3), and is in contact with the rotating shaft (1).

2. The needle roller bearing assembly detection mechanism according to claim 1, characterized in that: The first fixing component (2) comprises: at least one first abutment component (201) and at least one second abutment component (202), and the total number of the first abutment components (201) and the second abutment components (202) is greater than or equal to three; The first abutment component (201) and the second abutment component (202) are correspondingly arranged at different positions on the circumference of the rotating shaft (1), and the first abutment component (201) and the second abutment component (202) are both used to abut against the bearing to be detected at the gap; The first abutting component (201) is fixedly arranged, and the second abutting component (202) is movably arranged.

3. The needle roller bearing assembly detection mechanism according to claim 1 or 2, characterized in that: The second fixing component (3) comprises: at least one third abutment component (301) and at least one fourth abutment component (302), and the total number of the third abutment components (301) and the fourth abutment components (302) is greater than or equal to three; The third abutment component (301) and the fourth abutment component (302) are correspondingly arranged at different positions on the circumference of the rotating shaft (1), and both the third abutment component (301) and the fourth abutment component (302) abut against the rotating shaft (1); The third abutting component (301) is fixedly arranged, and the fourth abutting component (302) is movably arranged.

4. The needle roller bearing assembly detection mechanism according to claim 1, characterized in that: The pressure detection mechanism (5) comprises: A clamping member (501) is arranged corresponding to the rotating shaft (1) and is slidably arranged on the guide member (502); The guide member (502) is arranged on a side of the clamping member (501) away from the rotating shaft (1); The pressure sensor (503) is arranged on the guide member (502) and abuts against the clamping member (501).

5. The needle roller bearing assembly detection mechanism according to claim 4, characterized in that: The pressure detection mechanism (5) further comprises: The telescopic cylinder (504) is connected to the guide member (502) and is used to drive the guide member (502) to move.

6. The needle roller bearing assembly detection mechanism according to claim 4, characterized in that: The pressure detection mechanism (5) further comprises: The spring (505) is fixed to the guide member (502), and the pressure sensor (503) is fixed to the spring (505).

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