CN217331611U

CN217331611U - Bearing testing machine

Info

Publication number: CN217331611U
Application number: CN202220072974.0U
Authority: CN
Inventors: 刘鹏; 黎建涛; 王健; 许冬冬; 赵伟桦; 刘公平; 张言伟; 马德锋
Original assignee: Luoyang Bearing Research Institute Co Ltd
Current assignee: Luoyang Bearing Research Institute Co Ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-08-30
Anticipated expiration: 2032-01-12

Abstract

The utility model belongs to the field of bearing test equipment, in particular to a bearing test machine, which comprises a frame, a first drive device and a second drive device, wherein the power output shaft of the first drive device and the power output shaft of the second drive device are oppositely arranged on the frame at intervals, the position between the two is a test position, a bearing test seat is used for arranging the test bearing at the test position and comprises a seat body, a test shaft and a loading mechanism, a test bearing mounting structure for mounting the test bearing is arranged between the test shaft and the seat body, the test shaft of the bearing test seat is in transmission connection with the first drive device or the second drive device so as to select the first drive device or the second drive device to test the test bearing in the bearing test seat according to the requirement of the test bearing, and the bearing test machine can carry out simulation tests of at least two states on the test bearing, and a plurality of bearing testing machines are not required to be manufactured or purchased, so that the testing cost is reduced.

Description

Bearing testing machine

Technical Field

The utility model belongs to bearing test equipment field, concretely relates to bearing testing machine.

Background

In the design, research and production processes of the bearing, the bearing needs to be tested to obtain the working performance parameters of the bearing and verify the working performance of the bearing, and particularly, the bearing is tested by simulating the actual working state of the bearing.

In the prior art, in order to test a bearing, a corresponding testing machine is designed aiming at the structural characteristics of the bearing to be tested, the testing machine generally comprises a mounting structure for simulating the use of the bearing, a loading mechanism capable of applying load to the bearing to be tested and a driving mechanism for driving the bearing to rotate are arranged, and the actual working state of the bearing is simulated to test the bearing. Besides, the bearing testing machine is also provided with a corresponding monitoring system to extract relevant data in the bearing testing process. If the utility model discloses a bearing testing machine that chinese utility model patent that the publication number of authorizing is CN214200637U, the publication date of authorizing is 2021 year 09 month 14 days, this bearing testing machine is including being used for installing the test axle of waiting to test the bearing and being used for treating axial loading mechanism and the radial loading mechanism that test the bearing and exert load, in addition, for the drive wait that test the bearing rotates according to required rotational speed, still be provided with the electricity main shaft, electricity main shaft and test axle transmission are connected.

Such as the bearing testing machine disclosed in the above patent document, the bearing testing machine in the prior art can well test the corresponding specific type of bearing, however, the bearing in the prior art is various in variety, different bearings are different in structure, working environments and testing conditions, taking the needle bearing as an example, the needle bearing includes a radial needle bearing and a thrust needle bearing, and the structures and working states of the two are completely different, the radial needle bearing is mainly applied to the working environment with low rotating speed and large torque and mainly bears radial load in the working process, and the thrust needle bearing is mainly applied to the working environment with high rotating speed and small torque and mainly bears axial load in the working process. For bearings with completely different structures and working environments, the structures of required testing machines are naturally different, for example, the driving device can output large torque at low rotating speed when the centering needle bearing is tested, and can provide high rotating speed and small torque when the thrust needle bearing is tested, if the corresponding testing machines are designed, manufactured or purchased respectively for each type of bearing, a large number of testing machines are not needed, the purchase cost is high, and then the testing cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bearing testing machine to need dispose the bearing testing machine of a plurality of different grade types and the high technical problem of test cost that leads to when experimenting to polytype bearing among the solution prior art.

In order to achieve the above object, the utility model provides a bearing testing machine's technical scheme is:

the utility model provides a bearing testing machine, includes the frame, is provided with first drive arrangement and second drive arrangement on the frame, first drive arrangement's power output shaft and second drive arrangement's power output shaft relatively interval set up on the frame, position between first drive arrangement and the second drive arrangement is experimental position, and bearing test seat is installed to experimental position, and bearing test seat is used for the installation to wait experimental bearing, bearing test seat includes pedestal, experimental axle and loading mechanism, has the experimental bearing mounting structure who is used for the experimental bearing of installation between experimental axle and the pedestal, bearing test seat's experimental axle is used for being connected with first drive arrangement or second drive arrangement transmission to the demand according to experimental bearing selects first drive arrangement or second drive arrangement to test the experimental bearing in the bearing test seat.

The beneficial effects are that: two integrated drive arrangement can drive the test bearing and move under different states on this bearing testing machine for just can carry out the analogue test of two kinds of states at least to test bearing with a bearing testing machine, need not to make or purchase multiple bearing testing machine, reduced testing cost.

As a further improvement, the base body of the bearing test base is provided with a mounting structure for realizing the detachable mounting of the bearing test base on the base, and the number of the bearing test bases is at least two for mounting test bearings with different structures.

The beneficial effects are that: set up two at least bearing test seats, when needing to test different bearings, with corresponding bearing test seat install on the frame can, so can realize that multiple type bearing carries out the experiment of multiple state.

As a further improvement, the mounting structures of the bearing test seats are the same.

The beneficial effects are that: therefore, only one mounting structure matching structure matched with the mounting structure of the bearing test seat is arranged on the base, so that the bearing testing machine has a simpler structure.

As a further improvement, at least one of the first driving device and the second driving device is mounted on the base in a position-adjustable manner along the axial extension direction of the power output shaft.

The beneficial effects are that: through the position of adjusting first drive arrangement or second drive arrangement, the size of adjustment installation position is convenient for install the bearing test seat of isostructure at the installation position, is convenient for realize the bearing test seat of isostructure simultaneously and is connected with corresponding drive arrangement transmission.

As a further improvement, the first driving device is mounted on the base through a support seat, the base is provided with a T-shaped groove extending along the axial extension direction of the power output shaft of the first driving device, and the support seat is mounted on the base through a T-shaped bolt arranged in the T-shaped groove in a position-adjustable manner.

The beneficial effects are that: the position adjustment of the supporting seat can be simply and conveniently realized by matching the T-shaped groove with the T-shaped bolt, so that the motor can be selected for the first driving device.

As a further improvement, the second driving device is fixed on the base through a mounting seat, the mounting seat comprises an upper half-open portion and a lower half-open portion, a fixing groove matched with the second driving device is arranged on each half-open portion, and the second driving device can move relative to the fixing groove along the axial extension direction of the power output shaft, so that the position of the second driving device along the axial extension direction of the power output shaft can be adjusted.

The beneficial effects are that: the position adjustment and fixation of the second driving device can be realized through the upper part and the lower part of the elastic mounting seat.

As a further development, the rated rotational speed of the first drive is less than the rated rotational speed of the second drive.

The beneficial effects are that: the test bearing can be driven to carry out tests at different rotating speeds.

As a further improvement, the bearing test seat is provided with a lubricating system for lubricating the bearing to be tested, the test position is provided with an oil receiving port for collecting lubricating oil flowing out of the bearing test seat, and the oil receiving port is of an open structure with an upward opening.

The beneficial effects are that: set up the collection hydraulic fluid port of ascending open structure of opening at experimental position, in the testing process, the collection and cyclic utilization to lubricating oil can be directly flowed to the realization in receiving the hydraulic fluid port to the lubricating oil from the lubricating oil that flows in the bearing test stand, owing to need change different bearing test stands when testing different bearings, the hydraulic fluid port of receiving that sets up like this can cooperate with all bearing test stands, and need not to dock corresponding back oil pipe way to the bearing test stand, when simplifying the structure of bearing testing machine, improve the convenience of bearing testing machine operation.

As a further improvement, the machine base is provided with an installation platform for installing the bearing test seat, the installation platform is provided with a main flow channel which is positioned in the middle and extends up and down, the installation platform is also provided with a side flow channel which is communicated with the main flow channel and extends to the side part of the installation platform, and the oil receiving port is formed by the main flow channel and the flow channel opening of the side flow channel.

The beneficial effects are that: set up the mount table, it has the runner of circulation to set up the confession lubrication in the mount table, realizes the collection and directional water conservancy diversion to lubricating oil, avoids lubricating oil to flow to other places and pollute the frame.

As further improvement, the mounting table comprises a pedestal and a surrounding plate fixed on the side wall of the pedestal, wherein the surrounding plate and the pedestal enclose an annular groove with an upward opening, the pedestal is provided with an oil passing branch communicated with the annular groove and the main flow passage, and the oil passing branch and the annular groove form the side flow passage.

The beneficial effects are that: through fixed bounding wall and the ascending part of pedestal cooperation enclosure side runner opening on the pedestal lateral wall, intersect in the mount table of integral type for the side runner is convenient for set up, reduces the degree of difficulty of mount table manufacturing.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the middle bearing testing machine of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

description of reference numerals:

1. a base; 2. a work table; 3. a boom; 4. a servo motor; 5. an electric spindle; 6. a supporting base; 7. a T-shaped groove; 8. a partition plate; 9. a left chamber; 10. a right lumen; 11. a main shaft supporting seat; 12. a clasping piece; 13. a base body; 14. a test shaft; 15. a pedestal; 16. enclosing plates; 17. a ring groove; 18. a T-bolt; 19. an installation table; 20. a main flow passage; 21. a side runner; 22. and an oil passing branch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, which may be present, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrases "comprising an … …," or the like, do not exclude the presence of such elements, processes, or methods.

In the description of the present invention, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," and "connected" that may be present are to be construed broadly, e.g., as a fixed connection, a releasable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art through specific situations.

The following detailed description of the bearing testing machine provided by the present invention is made in conjunction with the following embodiments, specifically as follows:

as shown in fig. 1, the bearing testing machine comprises a machine base, and the machine base comprises a base 1 and a workbench 2. A suspension rod 3 matched with a hook of the hoisting equipment is fixed on the base 1.

The base 1 adopts a steel plate welding structure, a left cavity 9 and a right cavity 10 are separated by arranging a partition plate 8 in the middle, a loading system is arranged in the left cavity 9, and a lubricating system is arranged in the right cavity 10. The loading system adopts an electro-hydraulic servo loading mode, is automatically controlled by a computer to load, and specifically comprises an oil tank, a motor, an oil pump, an oil filter, a proportional pressure reducing valve, a corresponding oil way and the like. When the axial and radial loading device works, pressure oil output by the oil pump enters the corresponding valve seats through the oil filter, then enters the two proportional pressure reducing valves in two paths, the proportional pressure reducing valves continuously output given oil pressure under the action of the controller, and the pressure oil enters the corresponding axial loading mechanism and the corresponding radial loading mechanism, so that axial and radial loading of a bearing to be tested is realized.

The lubricating system consists of an oil tank, a motor, an oil pump, an oil filter, an overflow valve, corresponding pipelines and the like. During operation, after pressure oil output by the oil pump enters the overflow valve through the oil filter, given oil pressure is continuously output through the overflow valve, the pressure oil flows to a tested bearing, and tests of two lubricating modes of circulating oil lubrication and oil bath lubrication can be realized. During the test, the flow can be adjusted by using an overflow valve.

Besides the loading system and the lubricating system, the bearing testing machine also comprises a data acquisition system which is used for measuring and acquiring temperature data, main body vibration data, driving part current and load data and lubricating oil pressure data of the bearing in real time.

The bearing testing machine further comprises a servo motor 4 and an electric spindle 5 which are arranged on the base, wherein the servo motor 4 is installed on the workbench 2 through a supporting seat 6, specifically, a T-shaped groove 7 is formed in the workbench 2, and the supporting seat 6 is locked on the workbench 2 through a T-shaped bolt 18 and corresponding nut matching. The length extending direction of the T-shaped groove 7 is consistent with the axis extending direction of the power output shaft of the servo motor 4, and the direction is defined to be the left and right direction, so that the position of the servo motor 4 can be adjusted along the axis extending direction of the power output shaft of the servo motor 4 according to actual conditions, various bearing test conditions are met, and the servo motor 4 is convenient to disassemble and assemble. The servo motor 4 is used as a first driving device, is suitable for a test shafting with low rotating speed and large torque, and can test a bearing suitable for a low rotating speed environment. In a specific test, the rotation speed of the servo motor 4 can be controlled according to a test object. In other embodiments, the first drive means may also be a conventional, non-variable speed motor.

Based on the cylindrical structure of electricity main shaft 5 self, electricity main shaft 5 passes through the main shaft mount pad to be installed on workstation 2, specifically, the main shaft mount pad adopts the half structure of opening from top to bottom, including main shaft supporting seat 11 with be used for with the main shaft supporting seat 11 cooperation with 5 fixed enclasping of electricity main shaft 12 tightly, enclasping be equipped with on 12 and the supporting seat 11 with 5 complex fixed slots of electricity main shaft, enclasping 12 and supporting seat 11 adoption screw-up. Adopt such fixed mode, make electric main shaft 5's position to adjust along its power output shaft's axis extending direction, specifically, when needing to adjust electric main shaft 5's position, loosen holding member 12, remove electric main shaft 5, it is fixed with main shaft supporting seat 11 relative tensioning to hold holding member 12 again after the adjustment is accomplished, accomplish the fixed to electric main shaft 5, can adjust electric main shaft 5's position according to actual need like this, satisfy the experimental operating mode of multiple bearing, still be convenient for simultaneously to the dismouting of electric main shaft 5. The electric spindle 5 serves as a second driving device, a power output shaft of the second driving device can rotate at a high rotating speed, and the second driving device is suitable for a high-rotating-speed and low-torque test shafting.

As shown in FIG. 1, the servo motor 4 and the power output shaft of the electric spindle 5 are oppositely arranged at intervals, and the space between the servo motor and the power output shaft is a test position. In order to mount the bearing to be tested, the bearing testing machine further comprises at least two bearing test seats. The bearing test seat comprises a seat body 13, a test shaft 14 and a corresponding loading mechanism, wherein the seat body is provided with a mounting structure for mounting the bearing test seat at a test position, and a test bearing mounting structure for mounting a bearing to be tested is arranged between the test shaft 14 and the seat body 13. In this embodiment, the test socket is provided with two bearing test sockets.

In order to install the bearing test seat, the base 1 is provided with an installation platform 19, the bearing test seat is installed on the installation platform 19, the installation platform 19 is provided with a main flow passage 20 which is located in the middle and extends up and down, and is also provided with a side flow passage 21 which is communicated with the main flow passage 20 and extends to the side part of the installation platform, the flow passage openings of the main flow passage 20 and the side flow passage 21 are open openings with upward openings, the open openings are used as oil receiving openings, and lubricating oil flowing out of the bearing test seat can flow into the oil receiving openings to realize the collection and recovery of the lubricating oil. As shown in fig. 2, in the present embodiment, the mounting table includes a base 15 and a surrounding plate 16 fixed on a side wall of the base 15, the surrounding plate 16 and the base 15 form an annular groove 17 with an upward opening, the base 15 is provided with an oil passing branch 22 communicating with the main flow passage 20 and the annular groove 17, and the oil passing branch 22 and the annular groove 17 form a side flow passage. For the oil receiving port, in other embodiments, the oil receiving port may also be directly arranged on the table top of the workbench 2.

When the device is used specifically, according to the type of the bearing to be tested, the corresponding bearing test seat is selected to be installed on the machine base and is in transmission connection with the corresponding driving device. The bearing testing machine of the utility model provides a bearing testing machine introduces with the needle bearing of different grade type as the example in this embodiment, aims at explaining the utility model provides a bearing testing machine can realize the many state test to the bearing, under this design, its structure that can specifically design for being applicable to any bearing, and is not limited to needle bearing.

The utility model discloses embodiment 2 of well bearing testing machine, the difference with embodiment 1 is that, in this embodiment, the bearing testing machine only sets up a bearing test seat, during the experiment, according to actual need, this bearing test seat select with the cooperation of first drive arrangement or with the cooperation of second drive arrangement to carry out different rotation state's test to the bearing of same structure.

The utility model discloses embodiment 3 of well bearing testing machine, the difference with embodiment 1 is, in this embodiment, directly fixes servo motor's supporting seat on workstation 2 through the bolt, and the direction sets up the mounting structure of multiunit servo motor supporting seat about along on the workstation, realizes that servo motor is the ascending position of left right side adjustable.

The utility model discloses embodiment 4 of middle bearing testing machine, different from embodiment 1, in this embodiment, set up electric main shaft mounting bracket to electric main shaft, electric main shaft fixes on electric main shaft mounting bracket, and electric main shaft mounting bracket sets up on the workstation along controlling the direction position adjustably.

The utility model discloses embodiment 5 of middle bearing testing machine, the difference with embodiment 1 is, in this embodiment, mount table formula structure as an organic whole, and is concrete, and the mount table upside is the path section, and the downside is the big footpath section, and big footpath section and path section transition department are the step face, and the side runner is seted up on the step face and is communicate with the sprue to the oil inlet oblique sprue.

Finally, it should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention, and 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 modifications may be made in the technical solutions described in the foregoing embodiments without inventive effort, or some technical features may be substituted in the equivalent. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bearing testing machine comprises a machine base and is characterized in that a first driving device and a second driving device are arranged on the machine base; the power output shaft of the first driving device and the power output shaft of the second driving device are oppositely arranged on the base at intervals, the position between the first driving device and the second driving device is a test position, a bearing test seat is installed at the test position and used for installing a bearing to be tested, the bearing test seat comprises a seat body, a test shaft and a loading mechanism, a test bearing installation structure used for installing the test bearing is arranged between the test shaft and the seat body, the test shaft of the bearing test seat is used for being in transmission connection with the first driving device or the second driving device, and the first driving device or the second driving device is selected to test the test bearing in the bearing test seat according to the requirement of the test bearing.

2. The bearing testing machine according to claim 1, wherein the base body of the bearing test base is provided with a mounting structure for detachably mounting the bearing test base on the base, and the bearing test base is provided with at least two test bearings for mounting different structures.

3. The bearing tester as claimed in claim 2, wherein the mounting structure of each bearing test seat is the same.

4. A bearing tester as claimed in claim 2 or 3 wherein at least one of the first and second drive means is adjustably mounted on the housing in the direction of axial extension of its power take-off shaft.

5. Bearing tester according to claim 4, characterized in that the first drive is mounted on the machine base by means of a support (6) having a T-shaped groove (7) extending in the direction of extension of the axis of the power take-off shaft of the first drive, the support (6) being mounted on the machine base in a position-adjustable manner by means of a T-bolt (34) arranged in the T-shaped groove (7).

6. The bearing testing machine according to claim 4, wherein the second driving device is fixed on the base through a mounting seat, the mounting seat comprises an upper half part and a lower half part, each half part is provided with a fixing groove matched with the second driving device, and the second driving device can move relative to the fixing grooves along the axial extension direction of the power output shaft so as to realize the position adjustment of the second driving device along the axial extension direction of the power output shaft.

7. A bearing tester as claimed in any one of claims 1 to 3 wherein the rated speed of rotation of the first drive means is less than the rated speed of rotation of the second drive means.

8. The bearing testing machine according to claim 2 or 3, wherein the bearing test seat is provided with a lubricating system for lubricating a bearing to be tested, the test position is provided with an oil receiving port for collecting lubricating oil flowing out of the bearing test seat, and the oil receiving port is of an open structure with an upward opening.

9. The bearing testing machine according to claim 8, wherein the machine base is provided with a mounting platform (19) for mounting the bearing test seat, the mounting platform (19) is provided with a main flow passage (20) which is positioned in the middle and extends up and down, and is also provided with a side flow passage (21) which is communicated with the main flow passage (20) and extends to the side part of the mounting platform (19), and the oil receiving port is formed by the flow passage openings of the main flow passage (20) and the side flow passage (21).

10. The bearing testing machine according to claim 9, wherein the mounting table (19) comprises a pedestal (15) and a surrounding plate (16) fixed on the side wall of the pedestal (15), the surrounding plate (16) and the pedestal (15) surround a ring groove (17) with an upward opening, an oil passing branch (22) communicated with the ring groove (17) and a main flow passage (20) is arranged on the pedestal (15), and the oil passing branch (22) and the ring groove (17) form the side flow passage (21).