CN205262746U

CN205262746U - Bearing testing machine

Info

Publication number: CN205262746U
Application number: CN201521039151.4U
Authority: CN
Inventors: 高解农; 张志诚
Original assignee: SHANGHAI UNITED BEARING CO Ltd
Current assignee: SHANGHAI UNITED BEARING CO Ltd
Priority date: 2015-12-14
Filing date: 2015-12-14
Publication date: 2016-05-25
Anticipated expiration: 2025-12-14

Abstract

The utility model discloses a bearing testing machine, it constructs to bear mechanism, pressure mechanism and impact tester including test bench, bearing. The middle part in the frame is established to the test bench, the bearing bears the mechanism including experimental bearing cap, experimental bearing frame, bearing driving motor. Experimental bearing cap is installed in the upper end of the inner circle by experimental bearing, experimental bearing frame is fixed and is connected on the test bench and with the outer lane by experimental bearing, bearing driving motor is connected with the inner circle lower extreme by experimental bearing, the lower compressing cylinder of pressure mechanism above lieing in the test bench, the piston rod of this time compressing cylinder is coaxial with experimental bearing cap, impact tester constructs including snatch mechanism, a pair of lifting hydro -cylinder and the experimental piece that hits, snatch mechanism includes a pair of snatch cylinder and a pair of connection manipulator on the piston rod of a pair of snatch cylinder, the both sides at the test bench are installed to a pair of lifting hydro -cylinder. The utility model discloses a bearing testing machine can simulate the operating condition that the bearing is strikeed well, can reflect well by the actual life of examination bearing.

Description

A kind of bearing tester

Technical field

The utility model relates to a kind of bearing tester.

Background technology

Along with scientific and technical development, bearing products is more and more, and producer is also more and more higher to the requirement of bearing test. People also more and more recognize the importance of bearing test. In the bearing products development phase, what do is the test of bearing arrangement, and can test products meet the applying working condition of its bearing, is mainly the examination to bearing arrangement. After production type test, be mainly the examination to bearing quality, differentiate its bearing products credit rating, promote the raising of quality, thereby find the place of problem in certain weak links such as bearing arrangement, material, manufacturing process, and controlled. Therefore, bearing test is an indispensable important proof procedure in design bearing, manufacture process. It is that quality risk is effectively controlled to bearing enterprise inside, instead of user is worked as to the important means at test site. Therefore must have some special detection testing equipment simulated conditions to test could examine it whether to reach required technical requirement. The detection testing equipment having is at present exactly the general testing equipments such as reliability of service life strenuous test substantially, and a lot of special testing equipments are still blank.

Utility model content

The purpose of this utility model is to overcome the defect of prior art and a kind of bearing tester is provided, and it can simulate the actual condition that bearing is impacted well, can reflect well the actual life of tested bearing.

The purpose of this utility model is achieved in that a kind of bearing tester, comprises frame, testing stand, loading ability of bearing mechanism, pressure mechanism and impact test mechanism, wherein,

Described testing stand is located at the middle part of frame;

Described loading ability of bearing mechanism comprises test bearing lid, test bearing seat, bearing drive motors, and described test bearing lid is arranged on by the inner ring upper end of test bearing; Described test bearing seat be fixed on described testing stand and be connected by the outer ring of test bearing; Described bearing drive motors is arranged in the bottom of described frame and by test rotating shaft and is connected by the inner ring lower end of test bearing;

Described pressure mechanism comprises a down pressing oil cylinder, and this down pressing oil cylinder is arranged on the top of described frame by an oil cylinder seat, and makes the piston rod of this down pressing oil cylinder coaxial with described test bearing lid;

Described impact test mechanism comprises snatch mechanism, a pair of lifting oil cylinder and a test collision block; Described snatch mechanism comprises the manipulator of the snatch cylinder of a pair of both sides, top that are arranged on described frame and the end of a pair of piston rod that is connected to correspondingly a pair of snatch cylinder; Described a pair of lifting oil cylinder is arranged on the both sides of described testing stand, the span between the piston rod of this pair of lifting oil cylinder be less than described a pair of snatch cylinder piston rod retract time a pair of manipulator span; The span adaptation of a pair of manipulator when the piston rod of the width of described test collision block and described a pair of snatch cylinder is retracted.

Above-mentioned bearing tester, wherein, described bearing drive motors is connected with described test rotating shaft by right angle decelerator.

Above-mentioned bearing tester, wherein, described test bearing lid is hollow structure, and welds a spheroid in hollow part, so that the piston rod of described down pressing oil cylinder contacts with test bearing lid by spheroid.

Above-mentioned bearing tester, wherein, the bottom of the piston of described down pressing oil cylinder also coaxially connects last item.

Above-mentioned bearing tester, wherein, described impact test mechanism also comprises a pair of guide post being located between the both sides of described testing stand and the top of described frame; On described test collision block to offering pilot hole and linear bearing be installed in pilot hole by a pair of guide post.

The technical scheme of bearing tester of the present utility model, pressure mechanism and impact test mechanism are set in frame, this pressure mechanism and impact test mechanism are in the time of work, can apply shock loading to tested bearing, and can not interfere phenomenon, thereby simulate well the actual condition of bearing, make tested bearing to press close to the practical working situation of bearing, improved the accuracy of test. Bearing tester of the present utility model, simple in structure, functional reliability is good, can reflect well the actual life of tested bearing, has guaranteed the reliability of product.

Brief description of the drawings

Fig. 1 is the front view of bearing tester of the present utility model;

Fig. 2 is the side view of Fig. 1.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Refer to Fig. 1 and Fig. 2, bearing tester of the present utility model, comprises frame 1, testing stand 2, loading ability of bearing mechanism, pressure mechanism and impact test mechanism, wherein:

Testing stand 2 is located at the middle part of frame 1;

Loading ability of bearing mechanism comprises test bearing lid 31, test bearing seat 32, bearing drive motors 33; Test bearing lid 31 is fixed on by the inner ring upper end of test bearing 10, and test bearing lid 31 is hollow structure, and welds a spheroid 320 at hollow position; Test bearing seat 32 be fixed on testing stand 2 and be connected by the outer ring of test bearing 10; Bearing drive motors 33 be arranged in the bottom of frame 1 and by test rotating shaft 34 be connected by the inner ring lower end of test bearing 10, this bearing drive motors 33 by right angle decelerator 35 with test rotating shaft 34 and be connected;

Pressure mechanism is a down pressing oil cylinder 4, this down pressing oil cylinder 4 is arranged on the top of frame 1 by an oil cylinder seat 40 and is positioned at the top of testing stand 2, and make the piston rod of this down pressing oil cylinder 4 coaxial with test bearing lid 31, the bottom of the piston of this down pressing oil cylinder 4 also coaxially connects last item 41, when the piston rod of this down pressing oil cylinder 4 stretches out, the lower surface of lower last item 41 contacts with the spheroid 310 on test bearing lid 31.

Impact test mechanism comprises snatch mechanism, a pair of lifting oil cylinder 53, a pair of guide post 54 and a test collision block 55; Snatch mechanism comprises the manipulator 52 of the snatch cylinder 51 of a pair of both sides, top that are arranged on frame 1 and the end of a pair of piston rod that is connected to correspondingly a pair of snatch cylinder 51; A pair of lifting oil cylinder 53 is arranged on the both sides of testing stand 2, the span between the piston rod of this pair of lifting oil cylinder 53 be less than a pair of snatch cylinder 51 piston rod retract time a pair of manipulator 52 span; A pair of guide post 54 is located between the both sides of testing stand 2 and the top of frame 1; Test collision block 55 is a Circular Plate, its internal diameter is greater than the diameter of lower last item 41, the span adaptation of a pair of manipulator 53 when the piston rod of its overall diameter and a pair of snatch cylinder 51 is retracted, on this test collision block 55 to offering pilot hole and linear bearing 56 be installed in pilot hole by a pair of guide post 54.

Taking fork truck with bearing QJS1036X3 as example, its impact test requires as follows:

Fixed form by test bearing: the 1. outer ring of bearing is fixed, inner ring rotation; 2. bearing needs positive and negative direction rotation, clockwise one minute, counterclockwise one minute; 3. on the inner ring of bearing, apply axial load 2000Kg; 4. on bearing, load shock loading: the one-shot load that applies per minute, shock loading is axial load 20Kg, apart from 200mm, freely falling body impacts; 5. test period is cyclic test in 30 minutes, and duration of test bearing should have no abnormal sound, and the sealing ring anomaly such as come off, should stop test immediately as there is anomaly.

Bearing tester of the present utility model is to being met above-mentioned requirements by fork truck during with the test of bearing QJS1036X3. first being fixed on test bearing seat 32 by the outer ring of test bearing 10, bearing inner race is fixed on to the bearing drive motors 33 of testing in rotating shaft 34 and being connected to frame 1 bottom simultaneously, by electrical control, make bearing drive motors 33 meet the demand of rotating, and one minute clockwise, one minute counterclockwise, altogether rotates 30 minutes, calculates the pressure of down pressing oil cylinder 4 simultaneously. after by test bearing 10 installations, allow these down pressing oil cylinder 4 prerequisite activities, make the piston rod of down pressing oil cylinder 4 on test bearing lid 31, apply the axial compressive force of a 2000Kg by lower last item 41, because test bearing lid 31 is the inner ring upper surfaces that are fixed on by test bearing 10, the pressure essence of down pressing oil cylinder 4 is to be applied on the inner ring of test bearing 10, simultaneously because the central authorities of test bearing lid 31 have spheroid 310, the lower surface of lower last item 41 and spheroid 310 are in contacting, frictional resistance is less, therefore can not affect test bearing lid 31 and be synchronizeed and rotate by the inner ring of test bearing 10, then control bearing drive motors 33 and turn round, make to be carried out rotating by test bearing 10, then by two lifting oil cylinders, 53 lifting test collision blocks 54 (this test collision block 54 as calculated rear weight is 20Kg), make to test collision block 54 and be lifted to the test height of the upper surface 200mm of distance test (DT) bearing cap 31, and the piston rod of controlling snatch cylinder 51 bounces back, allow manipulator 52 clamp test collision block 54, control the piston rod automatic retracted of two lifting oil cylinders 53 after initial position simultaneously, allow again snatch cylinder 51 decontrol test collision block 54, allow its mode with freely falling body fall bump test bearing cap 31, clash into by the inner ring of test bearing 10, because test collision block 55 falls by the guiding of a pair of guide post 54, therefore can not be offset, this percussion action is once per minute, until off-test.

Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that not departing from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.

Claims

1. a bearing tester, comprises frame, testing stand, loading ability of bearing mechanism, pressure mechanism and impact test mechanism, it is characterized in that,

Described testing stand is located at the middle part of frame;

2. bearing tester according to claim 1, is characterized in that, described bearing drive motors is connected with described test rotating shaft by right angle decelerator.

3. bearing tester according to claim 1, is characterized in that, described test bearing lid is hollow structure, and welds a spheroid in hollow part, so that the piston rod of described down pressing oil cylinder contacts with test bearing lid by spheroid.

4. bearing tester according to claim 1, is characterized in that, the bottom of the piston of described down pressing oil cylinder also coaxially connects last item.

5. bearing tester according to claim 1, is characterized in that, described impact test mechanism also comprises a pair of guide post being located between the both sides of described testing stand and the top of described frame; On described test collision block to offering pilot hole and linear bearing be installed in pilot hole by a pair of guide post.