Bearing constant-pressure rolling durability experiment equipment

Abstract

The invention discloses a bearing constant-pressure rolling durability experiment device, which comprises a bottom frame, and a wear-resisting plate, a to-be-tested bearing frame and a pressurizing device which are arranged on the bottom frame, the wear-resisting plate is strip-shaped and extends along the length direction of the bottom frame, the to-be-tested bearing frame is slidably arranged above the wear-resisting plate, and the pressurizing device is arranged on the wear-resisting plate. The pressurizing device is arranged above the to-be-tested bearing frame and comprises a pressurizing frame, an air cylinder and a pressure regulating valve, the pressurizing frame is arranged above the wear-resisting plate in a sliding mode, a cylinder body of the air cylinder is fixedly installed on the pressurizing frame, a push rod is arranged downwards, the to-be-tested bearing frame is fixedly installed on the push rod of the air cylinder, and the pressure regulating valve is arranged on the pressure regulating valve. And the pressure regulating valve is fixed on the pressurizing frame and is communicated with the air cylinder. According to the bearing constant-pressure rolling durability experiment equipment, through the arrangement of the pressure regulating valve and the air cylinder, the effect that the pressure applied to the to-be-tested bearing is constant and adjustable can be effectively achieved through the pressure regulating effect of the pressure regulating valve.

Description

Technical Field

[0001] The invention relates to a rolling durability test device, and more particularly to a bearing constant pressure rolling durability test device. Background Art

[0002] The rolling endurance test of rolling bearings is very important and can evaluate the bearing life: by simulating long-term rolling operation under actual working conditions, it determines how long the bearing can continue to work normally under specified conditions, providing a life reference for the design, manufacture and application of bearings.

[0003] However, in the current existing technology, the pressure applied to the bearing by the equipment for rolling endurance test is a fixed pressure and cannot be adjusted. Therefore, the existing equipment for rolling endurance test cannot perform equidistant constant pressure tests according to the actual application scenarios of the bearings. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a bearing constant pressure rolling durability test equipment with improved efficiency, adjustable pressure, adjustable distance, and suitable for various bearing tests.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bearing constant pressure rolling durability test equipment, comprising a base frame and a wear-resistant plate arranged on the base frame, a bearing frame to be tested and a pressurizing device, wherein the wear-resistant plate is in the shape of an elongated strip and extends along the length direction of the base frame, the bearing frame to be tested can be slidably arranged above the wear-resistant plate, the pressurizing device is arranged above the bearing frame to be tested to apply pressure to the bearing to be tested, the bearing to be tested is mounted on the bearing frame to be tested, and the outer side surface of the outer ring contacts the wear-resistant plate, so that when the bearing frame to be tested is translated above the wear-resistant plate, the bearing to be tested rolls on the wear-resistant plate for testing, the pressurizing device comprises a pressurizing frame, a cylinder and a pressure regulating valve, the pressurizing frame can be slidably arranged above the wear-resistant plate, the cylinder body of the cylinder is fixedly mounted on the pressurizing frame, the push rod is arranged downward, the bearing frame to be tested is fixedly mounted on the push rod of the cylinder, the pressure regulating valve is fixed on the pressurizing frame and is connected to the cylinder to control the air pressure input into the cylinder, and then control the pressure applied to the bearing frame to be tested by the cylinder push rod.

[0006] As a further improvement of the present invention, a linear rail is fixed to the upper side of the base frame, and the linear rail extends along the length direction of the wear-resistant plate. A slider is fixed to the lower side of the pressure frame, and the slider is slidably arranged on the linear rail and has an I-shaped fit with the linear rail.

[0007] As a further improvement of the present invention, the pressure frame includes a bottom plate, a side plate and a connecting plate, the slider is fixedly mounted on the lower side of the bottom plate, the side plate is provided with two, which are respectively fixed on the two ends of the bottom plate, the two ends of the connecting plate are respectively fixed on the side plates, the pressure regulating valve is fixed between the lower side of the connecting plate and the upper side of the bottom plate, and the cylinder is provided with two, which are respectively fixed on the two side plates.

[0008] As a further improvement of the present invention, a servo motor is fixed to the upper side of one end of the base frame, and a synchronous belt pulley frame is fixed to the upper side of the other end. A synchronous belt is connected between the servo motor and the synchronous belt pulley frame, and the synchronous belt is fixedly installed on the upper side of the middle part of the base plate.

[0009] As a further improvement of the present invention, the bearing frame to be tested includes a fixed plate and a frame shaft, the fixed plate is fixedly mounted on the lower end of the push rod of the cylinder, the lower side of the fixed plate is fixed with frame plates spaced apart from each other, the two ends of the frame shaft are respectively mounted on the frame plates, and the bearing to be tested is sleeved on the frame shaft.

[0010] The beneficial effect of the present invention is that by configuring the pressurizing device to be a pressurizing frame, a cylinder and a pressure regulating valve, the pressure regulating effect of the pressure regulating valve can be effectively realized, and the pressure applied by the cylinder to the bearing frame to be tested can be regulated by adjusting the air pressure input into the cylinder, thereby achieving the effect of adjustable rolling endurance test pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the overall structure diagram of the bearing constant pressure rolling durability test equipment of the present invention;

[0012] Figure 2 for Figure 1 The overall structure diagram of the middle pressurization device part. DETAILED DESCRIPTION

[0013] The present invention will be further described below in detail with reference to the embodiments shown in the accompanying drawings.

[0014] Reference Figures 1 to 2As shown, a bearing constant pressure rolling durability test equipment of this embodiment comprises a base frame 1 and a wear-resistant plate 7 arranged on the base frame 1, a bearing frame 8 to be tested and a pressurizing device, wherein the wear-resistant plate 7 is in the shape of an elongated strip and extends along the length direction of the base frame 1, and the bearing frame 8 to be tested is slidably arranged above the wear-resistant plate 7, and the pressurizing device is arranged above the bearing frame 8 to be tested to apply pressure to the bearing to be tested, and the bearing to be tested is mounted on the bearing frame 8 to be tested, and the outer side surface of the outer ring contacts the wear-resistant plate 7, so that when the bearing frame 8 to be tested translates above the wear-resistant plate 7, the bearing to be tested rolls on the wear-resistant plate 7 for testing, and the pressurizing device comprises a pressurizing frame, a cylinder 4 and a pressure regulating valve 3, and the The pressure frame is slidably arranged above the wear-resistant plate 7, the cylinder body of the cylinder 4 is fixedly installed on the pressure frame, the push rod is arranged downward, the bearing frame 8 to be tested is fixedly installed on the push rod of the cylinder 4, and the pressure regulating valve 3 is fixed on the pressure frame and connected to the cylinder 4 to control the air pressure input into the cylinder 4, thereby controlling the pressure applied to the bearing frame 8 to be tested by the push rod of the cylinder 4. In the process of using the experimental equipment of this embodiment, it is only necessary to install the bearing to be tested on the bearing frame 8 to be tested, and then control the output air pressure of the pressure regulating valve 3 to control the pressure applied to the bearing frame 8 to be tested by the cylinder 4. Compared with the method in the prior art, this can achieve the effect of adjustable constant pressure.

[0015] Furthermore, in this embodiment, a linear rail 2 is set on the base frame 1, and then a slider is set under the pressure frame to cooperate with the linear rail 2 in an I-shaped manner to achieve the pressure frame being able to slide on the base frame 1, and the I-shaped groove can also be used to limit the up and down movement of the pressure frame, thereby achieving the effect of using the cylinder 4 to provide pressure.

[0016] Furthermore, in order to facilitate the installation of various components, the following pressure frame structure is adopted in this embodiment, including a bottom plate 41, a side plate 42 and a connecting plate 43. The slider is fixedly installed on the lower side of the bottom plate 41. The side plate 42 is provided with two, which are respectively fixed on the two ends of the bottom plate 41. The two ends of the connecting plate 43 are respectively fixed on the side plates 42. The pressure regulating valve 3 is fixed between the lower side of the connecting plate 43 and the upper side of the bottom plate 41. The cylinder 4 is provided with two, which are respectively fixed on the two side plates 42. At the same time, the pressure regulating valve 3 is fixed between the lower side of the connecting plate 43 and the upper side of the bottom plate 41. This position utilizes the space inside the frame, so that the pressure regulating valve 3 is well protected. At the same time, the two side plates 42 and the bottom plate 41 and the connecting plate 43 also provide a positioning reference for the installation of the pressure regulating valve 3, which is convenient for accurate installation. When subjected to pressure or external force impact, the frame structure can disperse the force and reduce the possibility of deformation, thereby providing a stable working environment for components such as the pressure regulating valve 3 and the cylinder 4 installed thereon.

[0017] Furthermore, in this embodiment, a servo motor 5 is fixed to the upper side of one end of the base frame 1, and a synchronous pulley frame 9 is fixed to the upper side of the other end. A synchronous belt is connected between the servo motor 5 and the synchronous pulley frame 9. The synchronous belt is fixedly installed on the upper side of the middle part of the base plate 41. This simply and effectively realizes a large stroke to drive the pressure frame to slide back and forth on the wear-resistant plate, thereby realizing the rolling durability test of the rolling bearing.

[0018] Furthermore, the present embodiment provides the following structure of the bearing frame 8 to be tested, including a fixed plate 81 and a frame shaft 82, wherein the fixed plate 81 is fixedly mounted on the lower end of the push rod of the cylinder 4, and the lower side of the fixed plate 81 is fixed with frame plates 83 spaced apart from each other, and the two ends of the frame shaft 82 are respectively mounted on the frame plates 83, and the bearing to be tested is sleeved on the frame shaft 82, and the two ends of the frame shaft 82 are mounted on the frame plate 83 on the lower side of the fixed plate, and this installation method is relatively stable. The frame plate 83 plays a good supporting role on the frame shaft 82, ensuring that the frame shaft 82 can remain stable when bearing the weight of the bearing and the external forces that may occur during the detection process, thereby providing a stable placement environment for the bearing.

[0019] To sum up, the bearing constant pressure rolling durability test equipment of this embodiment, through the setting of the pressure regulating valve 3 and the cylinder 4, can effectively use the pressure regulating valve 3 to regulate the air pressure input into the cylinder 4, and then realize the regulation of the pressure applied by the push rod of the cylinder 4 to the bearing frame 8 to be tested.

[0020] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A bearing constant pressure rolling durability test equipment, characterized by: The invention comprises a base frame (1), a wear-resistant plate (7) arranged on the base frame (1), a bearing frame to be tested (8) and a pressure device, wherein the wear-resistant plate (7) is in the shape of an elongated strip and extends along the length direction of the base frame (1), the bearing frame to be tested (8) is slidably arranged above the wear-resistant plate (7), the pressure device is arranged above the bearing frame to be tested (8) to apply pressure to the bearing to be tested, the bearing to be tested is mounted on the bearing frame to be tested (8), and the outer side surface of the outer ring is in contact with the wear-resistant plate (7), so that when the bearing frame to be tested (8) is translated above the wear-resistant plate (7), the pressure device is arranged above the bearing frame to be tested (8) to apply pressure to the bearing to be tested. The bearing to be tested is rolled on the wear-resistant plate (7). The pressurizing device comprises a pressurizing frame, a cylinder (4) and a pressure regulating valve (3). The pressurizing frame can be slidably arranged above the wear-resistant plate (7). The cylinder body of the cylinder (4) is fixedly mounted on the pressurizing frame, and the push rod is arranged downward. The bearing frame (8) to be tested is fixedly mounted on the push rod of the cylinder (4). The pressure regulating valve (3) is fixed on the pressurizing frame and connected to the cylinder (4) to control the air pressure input into the cylinder (4), thereby controlling the pressure applied by the push rod of the cylinder (4) to the bearing frame (8) to be tested.

2. The bearing constant pressure rolling durability test equipment according to claim 1, characterized in that: A linear rail (2) is fixed on the upper side of the base frame (1), and the linear rail (2) extends along the length direction of the wear-resistant plate (7). A slider is fixed on the lower side of the pressure frame, and the slider is slidably arranged on the linear rail (2) and is in an I-shaped fit with the linear rail (2).

3. The bearing constant pressure rolling durability test equipment according to claim 2 is characterized in that: The pressure frame comprises a bottom plate (41), a side plate (42) and a connecting plate (43); the slider is fixedly mounted on the lower side of the bottom plate (41); the side plate (42) is provided with two, which are respectively fixed on the two ends of the bottom plate (41); the two ends of the connecting plate (43) are respectively fixed on the side plate (42); the pressure regulating valve (3) is fixed between the lower side of the connecting plate (43) and the upper side of the bottom plate (41); and the cylinder (4) is provided with two, which are respectively fixed on the two side plates (42).

4. The bearing constant pressure rolling durability test equipment according to claim 3 is characterized by: A servo motor (5) is fixed to the upper side surface of one end of the base frame (1), and a synchronous belt pulley frame (9) is fixed to the upper side surface of the other end. A synchronous belt is connected between the servo motor (5) and the synchronous belt pulley frame (9), and the synchronous belt is fixedly mounted on the upper side surface of the middle part of the base plate (41).

5. The bearing constant pressure rolling durability test equipment according to claim 4, characterized in that: The bearing frame (8) to be tested comprises a fixing plate (81) and a frame shaft (82), wherein the fixing plate (81) is fixedly mounted on the lower end of the push rod of the cylinder (4), and frame plates (83) spaced apart from each other are fixed on the lower side of the fixing plate (81), and both ends of the frame shaft (82) are respectively mounted on the frame plates (83), and the bearing to be tested is sleeved on the frame shaft (82).

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