Biaxial directional loading bearing test equipment

Abstract

The utility model discloses biaxial directional loading bearing test equipment, which relates to the technical field of bearing test and comprises a main machine frame, a biaxial directional loading mechanism is fixedly connected to one side of the main machine frame, and a tool test device is arranged on the upper side of the biaxial directional loading mechanism. A tool balancing device is arranged on the upper side of the tool testing device and fixedly connected to the host machine frame. With the adoption of the structure, the double-shaft directional loading mechanism, the tool testing device, the tool balancing device, the rotary driving device and the rotary shaft seat are arranged, so that axial, radial and deflection torque loading can be provided for the bearing, and the axial and radial loading force directions do not change along with the conditions of working condition change, tool deformation and the like; the system ensures that the direction of the loading force strictly meets the actual working condition requirement under various complex working conditions, so that the accuracy and the reliability of the test are greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing testing, and particularly relates to a bearing testing experimental device with dual-axis directional loading. Background Technique

[0002] In the bearing life test experiment, whether the load direction during the bearing test remains unchanged under the influence of the change in load magnitude and the position offset of the loading tooling is a prerequisite guarantee index for the accuracy of the bearing life test, and it is also an important guarantee factor for the reliability and accuracy of the bearing-related test system. It is closely related to the application of cutting-edge technology and civil facilities, such as various automotive wheel hub bearings, robot wheel-foot bearings, industrial rod-end transmission bearings, railway bearings, etc. The dual-axis directional loading bearing test machine is a multi-condition test equipment in the current bearing life test work, with rich uses and wide application fields, and can improve the accuracy of testing the life state of various bearings under different environments, different loads, and different speeds.

[0003] The test bearing tooling will produce different elastic deformations and thermal deformations under different loads, temperatures and other conditions, resulting in the offset of the loading point. Currently, common loading forms such as electric cylinders or oil cylinders all adopt the front and rear hinged form, and the loading point is the hinge point. When the loading point changes in the direction other than the loading axis, the loading cylinder will change its angle accordingly, resulting in the situation that the direction of the loading force does not conform to the actual working conditions. Summary of the Utility Model

[0004] Aiming at the problems mentioned in the background technique, the purpose of the utility model is to provide a bearing testing experimental device with dual-axis directional loading to solve the problems in the background technique.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A bearing testing experimental device with dual-axis directional loading, including a main machine frame. One side of the main machine frame is fixedly connected with a dual-axis directional loading mechanism. The upper side of the dual-axis directional loading mechanism is provided with a tooling testing device. The upper side of the tooling testing device is provided with a tooling balancing device. The tooling balancing device is fixedly connected to the main machine frame. One side of the main machine frame far from the dual-axis directional loading mechanism is fixedly connected with a rotary driving device. One side of the rotary driving device is provided with a rotary shaft seat.

[0007] The biaxial directional loading mechanism includes a vertical loading cylinder, which is fixedly connected to the main machine frame. A lower support base is installed on one side of the vertical loading cylinder. One side of the lower end of the lower support base is fixedly connected with a vertical displacement sensor. A horizontal guiding unit is installed on one side of the lower support base. The top of the vertical loading cylinder is installed with a vertical loading rod. One side of the vertical loading rod is fixedly connected with a vertical load sensor. One side of the vertical loading rod is connected with a horizontal loading rod through a loading joint. One side of the horizontal loading rod is fixedly connected with a horizontal load sensor. A vertical guiding unit is arranged on one side of the horizontal load sensor. A horizontal balancing unit is arranged on one side of the vertical guiding unit. A first horizontal connecting rod is installed on the side of the vertical guiding unit far away from the horizontal load sensor. One side inside the main machine frame is fixedly connected with a horizontal loading cylinder. The output end of the horizontal loading cylinder is fixedly connected with a second horizontal connecting rod. The first horizontal connecting rod is fixedly connected with the second horizontal connecting rod.

[0008] As a preferred technical solution, an environmental shielding frame is installed on one side of the main machine frame, and the environmental shielding frame covers the tooling test device.

[0009] As a preferred technical solution, the tooling test device includes a lower connecting seat, which is hinged on the loading joint. The upper end of the lower connecting seat is fixedly connected with a tooling frame. A test bearing connecting seat is movably connected inside the tooling frame. One side of the test bearing connecting seat is connected with a test bearing. One side of the test bearing is attached to the rotating shaft seat. An axial adjusting member is arranged on one side of the tooling frame. A radial adjusting member is arranged on one side of the test bearing connecting seat.

[0010] As a preferred technical solution, the tooling balancing device includes a tooling connecting frame, which is fixedly connected to the top of the tooling frame. A weighing sensor is fixedly connected to the top of the tooling connecting frame. One end of the main machine frame is fixedly connected with a balancing frame. A balancing adjusting member is arranged on one side of the balancing frame. One side of the balancing adjusting member is connected with the weighing sensor.

[0011] In summary, the main beneficial effects of the present utility model are as follows:

[0012] In the present utility model, by setting a biaxial directional loading mechanism, a tooling test device, a tooling balancing device, a rotary driving device, and a rotating shaft seat, axial, radial, and deflection moment loading can be provided for the bearing. The directions of the axial and radial loading forces do not change with working conditions, tooling deformation, etc. This system ensures that under various complex working conditions, the direction of the loading force strictly meets the requirements of the actual working conditions, thereby greatly improving the accuracy and reliability of the test. Description of the Drawings

[0013] Figure 1is a schematic structural view of the utility model;

[0014] Figure 2 is a partial schematic structural view of the mainframe rack of the utility model;

[0015] Figure 3 is a schematic internal structural view of the mainframe rack of the utility model;

[0016] Figure 4 is the utility model Figure 3 schematic enlarged structural view at position A.

[0017] Reference numerals: 1. Biaxial directional loading mechanism; 101. Vertical loading cylinder; 102. Vertical displacement sensor; 103. Lower support seat; 104. Horizontal guiding unit; 105. Vertical load sensor; 106. Vertical loading rod; 107. Loading joint; 108. Horizontal loading rod; 109. Horizontal load sensor; 110. First horizontal connecting rod; 111. Second horizontal connecting rod; 112. Horizontal loading cylinder; 113. Vertical guiding unit; 114. Horizontal balancing unit; 115. Adjusting frame; 2. Mainframe rack; 3. Environmental shielding frame; 4. Tooling test device; 41. Lower connecting seat; 42. Axial adjusting member; 43. Tooling frame; 44. Bearing connecting seat; 45. Radial adjusting member; 46. Test bearing; 5. Tooling balancing device; 51. Tooling connecting frame; 52. Weighing sensor; 53. Balancing adjusting member; 54. Balancing frame; 6. Rotary driving device; 7. Rotary shaft seat. Detailed implementation manners

[0018] Embodiment

[0019] Referring to Figures 1 to 4 , a biaxial directional loading bearing test device described in this embodiment includes a mainframe rack 2, a biaxial directional loading mechanism 1 is fixedly connected to one side of the mainframe rack 2, a tooling test device 4 is arranged above the biaxial directional loading mechanism 1, a tooling balancing device 5 is arranged above the tooling test device 4, the tooling balancing device 5 is fixedly connected to the mainframe rack 2, a rotary driving device 6 is fixedly connected to the side of the mainframe rack 2 away from the biaxial directional loading mechanism 1, and a rotary shaft seat 7 is installed on one side of the rotary driving device 6;

[0020] The biaxial directional loading mechanism 1 includes a vertical loading cylinder 101, which is fixedly connected to the main frame 2. A lower support seat 103 is installed on one side of the vertical loading cylinder 101, and a vertical displacement sensor 102 is fixedly connected to one side of the lower end of the lower support seat 103. A horizontal guide unit 104 is installed on one side of the lower support seat 103. A vertical loading rod 106 is installed on the top of the vertical loading cylinder 101, and a vertical load sensor 105 is fixedly connected to one side of the vertical loading rod 106. One side of the vertical loading rod 106 is connected to a horizontal loading rod 108 through a loading joint 107, one side of the horizontal loading rod 108 is fixedly connected to a horizontal load sensor 109, one side of the horizontal load sensor 109 is provided with a vertical guide unit 113, one side of the vertical guide unit 113 is provided with a horizontal balancing unit 114, and a first horizontal connecting rod 110 is installed on a side of the vertical guide unit 113 away from the horizontal load sensor 109. One side of the interior of the main frame 2 is fixedly connected to a horizontal loading cylinder 114. 12, the output end of the horizontal loading cylinder 112 is fixedly connected to the second horizontal connecting rod 111, the first horizontal connecting rod 110 is fixedly connected to the second horizontal connecting rod 111, the loading joint 107 is vertically connected to the vertical loading rod 106, the vertical load sensor 105, the vertical loading cylinder 101, the lower support seat 103, the horizontal guide unit 104 and the adjustment frame 115; the loading joint 107 is horizontally connected to the horizontal loading rod 108, the horizontal load sensor 109, the horizontal balancing unit 114, the vertical guide unit 113 and the adjustment frame 115. The adjusting frame 115 is connected to the first horizontal connecting rod 110, the second horizontal connecting rod 111, the horizontal displacement sensor, and the horizontal loading cylinder 112. The vertical loading rod 106 connected to the loading joint 107 and the horizontal guiding unit 104 always remain vertical. The horizontal loading rod 108 connected to the loading joint 107 and the vertical guiding unit 113 always remain vertical. The loading unit can maintain the accuracy and stability of the loading force direction during axial and radial loading, and is not affected by tooling deformation or changes in external conditions.

[0021] refer to Figure 1 An environmental shielding frame 3 is installed on one side of the main frame 2, and the environmental shielding frame 3 covers the tooling test device 4; by setting up the environmental shielding frame 3, it is used to isolate the tooling test device 4, which facilitates the bearing test.

[0022] refer to Figures 3 - 4, the tooling test device 4 includes a lower connecting seat 41, the lower connecting seat 41 is hinged on the loading joint 107, the upper end of the lower connecting seat 41 is fixedly connected with a tooling frame 43, a bearing connecting seat 44 is movably connected inside the tooling frame 43, one side of the bearing connecting seat 44 is connected with a test bearing 46, one side of the test bearing 46 is attached to the rotating shaft seat 7, an axial adjusting member 42 is provided on one side of the tooling frame 43, and a radial adjusting member 45 is provided on one side of the bearing connecting seat 44; by setting the tooling test device 4 and the bearing connecting seat 44, the test bearing 46 can be installed, so that one side of the test bearing 46 can be closely attached to the rotating shaft seat 7, simulating the operating state in the actual working environment. In order to further improve the accuracy of the test, an axial adjusting member 42 is specially equipped on one side of the tooling frame 43, allowing the operator to finely adjust the axial position of the test bearing 46 to adapt to different test parameters and conditions. By setting the radial adjusting member 45, the radial position of the test bearing 46 can also be accurately adjusted and controlled.

[0023] Reference Figure 3 , the tooling balance device 5 includes a tooling connecting frame 51, the tooling connecting frame 51 is fixedly connected to the top of the tooling frame 43, a weighing sensor 52 is fixedly connected to the top of the tooling connecting frame 51, one end of the main machine frame 2 is fixedly connected with a balance frame 54, a balance adjusting member 53 is provided on one side of the balance frame 54, and one side of the balance adjusting member 53 is connected with the weighing sensor 52; by setting the tooling balance device 5, the entire test system can operate in a more stable and reliable environment, effectively reducing the test error caused by the imbalance of the tooling and improving the accuracy of the test results.

[0024] Principle of use and advantages: By setting the biaxial directional loading mechanism 1, the tooling test device 4, the tooling balance device 5, the rotary drive device 6, and the rotating shaft seat 7, axial, radial, and deflection moment loading can be provided for the bearing. The directions of the axial and radial loading forces do not change with working conditions, tooling deformation, etc. This system ensures that under various complex working conditions, the direction of the loading force strictly meets the requirements of the actual working conditions, thus greatly improving the accuracy and reliability of the test.

Claims

1. A biaxial directional loading bearing test equipment, comprising a main frame (2), characterized in that: A dual-axis directional loading mechanism (1) is fixedly connected to one side of the main frame (2); a tooling test device (4) is provided on the upper side of the dual-axis directional loading mechanism (1); a tooling balancing device (5) is provided on the upper side of the tooling test device (4); the tooling balancing device (5) is fixedly connected to the main frame (2); a rotation drive device (6) is fixedly connected to the side of the main frame (2) away from the dual-axis directional loading mechanism (1); a rotation shaft seat (7) is installed on one side of the rotation drive device (6); The biaxial directional loading mechanism (1) comprises a vertical loading cylinder (101), the vertical loading cylinder (101) being fixedly connected to a main machine frame (2), a lower support seat (103) being installed on one side of the vertical loading cylinder (101), a vertical displacement sensor (102) being fixedly connected to one side of the lower end of the lower support seat (103), a horizontal guide unit (104) being installed on one side of the lower support seat (103), a vertical loading rod (106) being installed on the top end of the vertical loading cylinder (101), a vertical load sensor (105) being fixedly connected to one side of the vertical loading rod (106), and a horizontal loading sensor (105) being transmission-connected to one side of the vertical loading rod (106) via a loading joint (107). A loading rod (108), one side of the horizontal loading rod (108) is fixedly connected to a horizontal load sensor (109), one side of the horizontal load sensor (109) is provided with a vertical guide unit (113), one side of the vertical guide unit (113) is provided with a horizontal balancing unit (114), a first horizontal connecting rod (110) is installed on the side of the vertical guide unit (113) away from the horizontal load sensor (109), an inner side of the main frame (2) is fixedly connected to a horizontal loading cylinder (112), an output end of the horizontal loading cylinder (112) is fixedly connected to a second horizontal connecting rod (111), and the first horizontal connecting rod (110) and the second horizontal connecting rod (111) are fixedly connected.

2. A biaxial directional loading bearing test equipment according to claim 1, characterized in that: An environmental shielding frame (3) is installed on one side of the host frame (2), and the environmental shielding frame (3) covers the tooling test device (4).

3. A biaxial directional loading bearing test equipment according to claim 1, characterized in that: The tooling test device (4) comprises a lower connecting seat (41), the lower connecting seat (41) is hinged on the loading joint (107), the upper end of the lower connecting seat (41) is fixedly connected to a tooling frame (43), the interior of the tooling frame (43) is movably connected to a bearing connecting seat (44), one side of the bearing connecting seat (44) is connected to a test bearing (46), and one side of the test bearing (46) is attached to the rotating shaft seat (7).

4. A biaxial directional loading bearing test equipment according to claim 3, characterized in that: An axial adjustment member (42) is provided on one side of the tooling frame (43), and a radial adjustment member (45) is provided on one side of the bearing connection seat (44).

5. The biaxial directional loading bearing test equipment according to claim 3 is characterized in that: The tooling balancing device (5) comprises a tooling connecting frame (51), wherein the tooling connecting frame (51) is fixedly connected to the top end of the tooling frame (43), and a weighing sensor (52) is fixedly connected to the top end of the tooling connecting frame (51).

6. A biaxial directional loading bearing test equipment according to claim 5, characterized in that: One end of the main frame (2) is fixedly connected to a balancing frame (54), one side of the balancing frame (54) is provided with a balancing adjustment member (53), and one side of the balancing adjustment member (53) is connected to a weighing sensor (52).

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