A cross roller bearing grease leakage test device and test method

Abstract

The present invention discloses a cross roller bearing grease leakage test device and a test method thereof, and relates to the technical field of bearing testing. The present invention comprises: an oil chamber base, which is used to fix the bearing; the oil chamber base is located on one side of the bearing and is fixed to the outer ring of the bearing; a rotating connecting rod, which is used to drive the bearing; the rotating connecting rod is located on the other side of the bearing and is fixed to the inner ring of the bearing; an oil storage chamber and four locking screw holes are provided on one side of the oil chamber base, and the four locking screw holes are located at the edge of one side of the oil chamber base, and an oil filling hole is provided on the peripheral side of the oil chamber base, and a plugging screw is provided inside the oil filling hole. The present invention realizes the purpose of conducting grease leakage test and controlling bearing quality in the bearing manufacturing link, and through the structural coordination design of the oil chamber base and the rotating connecting rod, the test method can simulate working conditions, can achieve equivalent simulated installation test conditions, and has high test reliability; and the operation is simple, and the test can be realized without a complex driving device.

Description

Technical Field

[0001] The invention belongs to the technical field of bearing testing, and in particular relates to a grease leakage testing device for a cross roller bearing and a testing method thereof. Background Art

[0002] Cross roller bearings are the core components of robot reducers, and their quality directly determines the operating quality of the reducer.

[0003] During the manufacturing process of the bearing, a certain amount of grease will be filled, and during the later use, the bearing will come into contact with the gear lubricant. This determines that during the actual working process of the bearing, the lubrication is a mixture of grease and gear oil. Grease leakage performance is one of the key factors determining the quality of the bearing, so the bearing production process must be strictly controlled; however, some traditional cross roller bearing test methods are not convenient for simulating working conditions, and are not convenient for achieving equivalent simulated installation test conditions, and the test reliability is low; the operation is difficult, and a complex drive device is required to achieve the test. Summary of the invention

[0004] The purpose of the present invention is to provide a cross roller bearing grease leakage test device and a test method thereof to solve the existing problem: some traditional cross roller bearing test methods are inconvenient to simulate working conditions, inconvenient to achieve equivalent simulated installation test conditions, and the test reliability is low.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a cross roller bearing grease leakage testing device, comprising:

[0007] Oil chamber base, used to fix the bearing;

[0008] The oil chamber base is located on one side of the bearing and is fixed to the outer ring of the bearing;

[0009] Rotating connecting rod for driving the bearing;

[0010] The rotating connecting rod is located on the other side of the bearing and is fixed to the inner ring of the bearing.

[0011] Furthermore, an oil storage chamber and four locking screw holes are opened on one side of the oil chamber base, and the four locking screw holes are located at the edge of one side of the oil chamber base. An oil filling hole is opened on the surrounding side of the oil chamber base, and a plugging screw is arranged inside the oil filling hole.

[0012] Furthermore, the oil chamber base has an oil storage chamber on one side which fits the bearing, and the oil chamber base is detachably connected to the outer ring of the bearing through the cooperation of four locking screw holes and screws.

[0013] Furthermore, the rotating connecting rod includes a connecting rod part, a shaft section, a step, and a screw hole. The step is fixed to one end of the connecting rod part, a screw hole is opened inside the step, and the shaft section is fixed to the side of the step away from the connecting rod part.

[0014] Furthermore, the rotating connecting rod is located at the other side of the bearing, the rotating connecting rod cooperates with the inner hole of the bearing through the shaft section, the step fits with the other side of the bearing, and the rotating connecting rod is detachably connected to the inner ring of the bearing through the screw through the hole and the screw.

[0015] Furthermore, one end of the rotating connecting rod away from the bearing is connected to the output end of the motor through the connecting rod part.

[0016] A cross roller bearing grease leakage test device and test method thereof, used for any of the above items, the steps are as follows:

[0017] S1: Assemble the oil chamber base, bearing and rotating rod;

[0018] S2: After assembling the oil chamber base, bearings, and rotating connecting rod, add gear oil into the oil storage chamber and tighten the plugging screws to seal it;

[0019] S3: Fix the oil chamber base, drive the rotating connecting rod through the motor, and perform a running-in test according to the predetermined test standard;

[0020] S4: During the test, regularly observe whether there is grease leakage at the oil seal. If no grease leakage is found after the test, it indicates that the bearing sealing effect is good and the performance is reliable.

[0021] The present invention has the following beneficial effects:

[0022] The present invention achieves the purpose of conducting grease leakage test and controlling bearing quality in the bearing manufacturing process. Through the structural coordination design of the oil chamber base and the rotating connecting rod, the test method can simulate working conditions and can achieve equivalent simulated installation test conditions, with high test reliability. The operation is simple and the test can be realized without the need for a complex driving device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 It is a cross-sectional view of the connection structure of the oil chamber base, the bearing, and the rotating connecting rod of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall structure of the oil chamber base of the present invention;

[0026] Figure 3 It is a schematic diagram of the overall structure of the rotary connecting rod of the present invention.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Oil chamber base; 2. Bearing; 3. Rotating connecting rod; 11. Blocking screw; 12. Oil filling hole; 13. Oil storage chamber; 14. Locking screw hole; 21. Oil seal; 31. Connecting rod part; 32. Shaft section; 33. Step; 34. Screw through hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] See also Figure 1-Figure 3 As shown, the present invention is a cross roller bearing grease leakage test device, comprising:

[0032] The oil chamber base 1 is used to fix the bearing 2;

[0033] The oil chamber base 1 is located on one side of the bearing 2 and is fixed to the outer ring of the bearing 2;

[0034] Specifically, an oil storage chamber 13 and four locking screw holes 14 are opened on one side of the oil chamber base 1. The four locking screw holes 14 are located at the edge of one side of the oil chamber base 1. In order to facilitate the filling of gear oil into the oil storage chamber 13, an oil filling hole 12 is opened on the peripheral side of the oil chamber base 1. In order to facilitate the plugging of the oil filling hole 12 to prevent the leakage of the gear oil after filling, a plugging screw 11 is arranged inside the oil filling hole 12.

[0035] Among them, the oil chamber base 1 is provided with an oil storage chamber 13 on one side which fits with the bearing 2, so that the added gear oil can enter the bearing 2. The oil chamber base 1 is detachably connected to the outer ring of the bearing 2 through four locking screw holes 14 and screws, which facilitates the installation or disassembly of the oil chamber base 1 and the bearing 2.

[0036] The rotating connecting rod 3 is used to drive the bearing 2; the rotating connecting rod 3 drives the bearing 2 to rotate to simulate the working condition, thereby achieving the equivalent simulated installation test condition;

[0037] The rotating connecting rod 3 is located at the other side of the bearing 2 and is fixed to the inner ring of the bearing 2 .

[0038] Specifically, the rotating connecting rod 3 includes a connecting rod part 31, a shaft section 32, a step 33, and a screw hole 34. In order to realize the connection between the connecting rod part 31 and the bearing 2 and facilitate the rotation of the bearing 2, a step 33 is fixed at one end of the connecting rod part 31, a screw hole 34 is opened inside the step 33, and a shaft section 32 is fixed on the side of the step 33 away from the connecting rod part 31.

[0039] Among them, the rotating connecting rod 3 is located at the other side of the bearing 2, the rotating connecting rod 3 cooperates with the inner hole of the bearing 2 through the shaft section 32, the step 33 fits with the other side of the bearing 2, and the rotating connecting rod 3 is detachably fixedly connected to the inner ring of the bearing 2 through the screw through hole 34 and the screw, which facilitates the installation or disassembly of the rotating connecting rod 3 and the bearing 2.

[0040] In order to drive the rotating connecting rod 3 to drive the inner ring of the bearing 2 to rotate to simulate the installation test conditions, the end of the rotating connecting rod 3 away from the bearing 2 is connected to the output end of the motor through the connecting rod part 31, and the rotating connecting rod 3 is driven to rotate by starting the motor, or by connecting the rotating connecting rod part 31 through other power devices to drive the rotating connecting rod 3 to rotate.

[0041] Embodiment 2:

[0042] Based on the above embodiment 1, the test method is disclosed:

[0043] Step 1: Assemble the oil chamber base 1, bearing 2, and rotating rod 3 as Figure 1 Assemble as shown;

[0044] Step 2: After assembling the oil chamber base 1, the bearing 2, and the rotating connecting rod 3, add gear oil into the oil storage chamber 13, and tighten the plugging screw 11 to seal it;

[0045] Step 3: Fix the oil chamber base 1, drive the rotating connecting rod 3 through the motor, and perform a running-in test according to the predetermined test standard;

[0046] Step 4: During the test, regularly observe whether there is grease leakage at the oil seal 21. If no grease leakage is found after the test, it indicates that the sealing effect of the bearing 2 is good and the performance is reliable.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cross roller bearing grease leakage test device, characterized in that: include: An oil chamber base (1) for fixing the bearing (2); The oil chamber base (1) is located on one side of the bearing (2) and is fixed to the outer ring of the bearing (2); A rotating connecting rod (3) for driving the bearing (2); The rotating connecting rod (3) is located on the other side of the bearing (2) and is fixed to the inner ring of the bearing (2); An oil storage chamber (13) and four locking screw holes (14) are provided on one side of the oil chamber base (1), and the four locking screw holes (14) are located at the edge of one side of the oil chamber base (1). An oil filling hole (12) is provided on the peripheral side of the oil chamber base (1), and a plugging screw (11) is provided inside the oil filling hole (12); The oil chamber base (1) is provided with an oil storage chamber (13) on one side thereof, which is in contact with the bearing (2); the oil chamber base (1) is detachably connected to the outer ring of the bearing (2) through the cooperation of four locking screw holes (14) and screws; The rotating connecting rod (3) comprises a connecting rod portion (31), a shaft section (32), a step (33), and a screw through hole (34); the step (33) is fixed to one end of the connecting rod portion (31); a screw through hole (34) is provided inside the step (33); and the shaft section (32) is fixed to a side of the step (33) away from the connecting rod portion (31); The rotating connecting rod (3) is located at the other side of the bearing (2), the rotating connecting rod (3) cooperates with the inner hole of the bearing (2) through the shaft section (32), the step (33) fits with the other side of the bearing (2), and the rotating connecting rod (3) is detachably connected to the inner ring of the bearing (2) through the screw through hole (34) and the screw. One end of the rotating connecting rod (3) away from the bearing (2) is connected to the output end of the motor through a connecting rod portion (31).

2. A test method for a cross roller bearing grease leakage test device, used for the cross roller bearing grease leakage test device according to claim 1, the steps are as follows: S1: Assemble the oil chamber base (1), the bearing (2), and the rotating connecting rod (3); S2: After assembling the oil chamber base (1), the bearing (2) and the rotating connecting rod (3), add gear oil into the oil storage chamber (13), and tighten the plugging screw (11) to seal it; S3: Fix the oil chamber base (1), drive the rotating connecting rod (3) by the motor, and perform a running-in test according to a predetermined test standard; S4: During the test, the oil seal (21) is regularly observed for grease leakage. If no grease leakage is found after the test, it indicates that the sealing effect of the bearing (2) is good and the performance is reliable.

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