CN206281652U - A Miniature Bearing Axial Stiffness Tester - Google Patents

Abstract

The utility model discloses a miniature bearing axial stiffness tester, including bearing frame, stay cord, cylinder connecting plate, supporting seat and mounting panel, the backup pad is installed to the supporting seat top, and installs the mounting panel above the backup pad, the stand is installed to the mounting panel top, the lifter is installed to the mounting panel top, and installs the measurement support above the lifter, two effect cylinders are installed to the supporting seat top, and install the cylinder connecting plate above two effect cylinders, cylinder connecting plate top is provided with force cell sensor, and installs the stay cord above force cell sensor, the stay cord top is provided with the bearing frame, and installs displacement sensor above the bearing frame, the bearing core is installed to the bearing frame top. The utility model discloses in, through being provided with displacement sensor, when carrying out the testing, displacement sensor can show the skew situation of bearing on the computer screen for convenience more when measuring has increased the functional of equipment.

Description

A Miniature Bearing Axial Stiffness Tester

technical field

The utility model relates to the technical field of stiffness testers, in particular to a miniature bearing axial stiffness tester.

Background technique

Bearing stiffness is one of the important parameters of high-speed precision bearings. The quality of bearing stiffness directly affects the performance of the entire shaft system. At present, when testing the axial stiffness of bearings, it is often only possible to perform simple testing. The measurement accuracy and repeatability are not guaranteed, and some old equipment is used to detect the stiffness of miniature bearings. The measurement accuracy is too low, the axial load cannot be loaded steplessly, the operation is troublesome, the error is large, and the repeatability is not good. , does not meet the needs of production and processing.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a miniature bearing axial stiffness tester.

In order to achieve the above object, the utility model adopts the following technical solutions:

A miniature bearing axial stiffness tester, comprising a bearing seat, a stay rope, a cylinder connection plate, a support base and a mounting plate, a support plate is installed above the support base, and a mounting plate is installed above the support plate, the mounting plate A column is installed above, a lifting rod is installed above the mounting plate, and a measuring bracket is installed above the lifting rod, a double-acting cylinder is installed above the support seat, and a cylinder connecting plate is installed above the double-acting cylinder, and the cylinder is connected to A force sensor is arranged above the plate, and a pull rope is installed above the force sensor, a bearing seat is arranged above the pull rope, and a displacement sensor is installed above the bearing seat, a bearing core is installed above the bearing seat, and the bearing A bearing measuring platform is installed on the right side of the seat, and a loading mandrel is arranged above the bearing measuring platform.

Preferably, a rotating nut is provided on the left side of the measuring bracket.

Preferably, a running driver is installed above the bearing core.

Preferably, a precision sensor is arranged inside the double-acting cylinder.

Preferably, a pressure sensor is arranged under the bearing measuring platform.

In the utility model, by being provided with a displacement sensor, the displacement sensor can display the offset condition of the bearing on the computer screen during the detection test, which makes the measurement more convenient and increases the functionality of the equipment. The pressure sensor can detect the pressure that the bearing can withstand. It is easy to operate. The output end of the precision sensor is electrically connected to the input end of the load cell, which makes the bearing stiffness measurement more accurate, with smaller errors and higher efficiency. Meet the needs of production and processing.

Description of drawings

Fig. 1 is the structural representation of a kind of miniature bearing axial stiffness tester that the utility model proposes;

Fig. 2 is a schematic diagram of the internal structure of a miniature bearing axial stiffness tester proposed by the utility model.

In the figure: 1, running driver, 2, bearing core, 3, displacement sensor, 4, bearing seat, 5, pull rope, 6, force sensor, 7, cylinder connecting plate, 8, double-acting cylinder, 9, support seat , 10, support plate, 11, mounting plate, 12, lifting rod, 13, rotating nut, 14, measuring bracket, 15, column, 16, loading mandrel, 17, bearing measuring table, 18, pressure sensor, 19, accuracy sensor.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Referring to Figures 1-2, a miniature bearing axial stiffness tester includes a bearing seat 4, a stay rope 5, a cylinder connection plate 7, a support seat 9 and a mounting plate 11, a support plate 10 is installed above the support seat 9, and supports A mounting plate 11 is installed above the plate 10, a column 15 is installed above the mounting plate 11, and a lifting rod 12 is installed above the mounting plate 11. The lifting rod 12 can adjust the height of the bearing measuring platform 17, making it more convenient to use, and the lifting rod 12 A measuring bracket 14 is installed above, a double-acting cylinder 8 is installed above the support seat 9, and a cylinder connecting plate 7 is installed above the double-acting cylinder 8, a force sensor 6 is arranged above the cylinder connecting plate 7, and a force sensor 6 is installed above There is a stay rope 5, a bearing seat 4 is arranged above the stay rope 5, and a displacement sensor 3 is installed above the bearing seat 4, a bearing core 2 is installed above the bearing seat 4, a bearing measuring platform 17 is installed on the right side of the bearing seat 4, and the bearing A loading mandrel 16 is arranged above the measuring platform 17, a rotating nut 13 is arranged on the left side of the measuring bracket 14, a running driver 1 is installed above the bearing core 2, a precision sensor 19 is arranged inside the double-acting cylinder 8, and a The pressure sensor 18 , the output end of the pressure sensor 18 is electrically connected to the input end of the displacement sensor 3 .

Working principle: when using the miniature bearing axial stiffness tester, put the tested bearing on the fixed bearing seat 4, and the bearing core 2 is matched with the tested bearing Installation, the displacement sensor 3 is placed above the bearing, the measuring head of the bearing is in contact with the section of the bearing core 2, the double-acting cylinder 8 and the load cell 6 are installed coaxially with the bearing under test, and are connected to the end of the bearing core 2 through the pull rope 5 During the measurement process, the double-acting cylinder 8 applies downward axial tension to the bearing under test. When the pressure is applied, the load cell 6 can transmit the measured data, so that the measured data can be obtained. The whole set of devices full run.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (5)

1. a kind of miniature bearing axial rigidity tester, including bearing block (4), drawstring (5), cylinder connecting plate (7), support base (9) and installing plate (11), it is characterised in that support base (9) top is provided with supporting plate (10), and supporting plate (10) top Installing plate (11) is installed, installing plate (11) top is provided with column (15), and installing plate (11) top is provided with liter Drop bar (12), and elevating lever (12) top is provided with measurement support (14), support base (9) top is provided with double-acting cylinder (8) cylinder connecting plate (7), and above double-acting cylinder (8) is installed, cylinder connecting plate (7) top is provided with dynamometry biography Sensor (6), and force cell (6) top is provided with drawstring (5), drawstring (5) top is provided with bearing block (4), and axle Bearing (4) top is provided with displacement transducer (3), and bearing block (4) top is provided with bearing core (2), the bearing block (4) Right side is provided with bearing measuring platform (17), and bearing measuring platform (17) top is provided with loading mandrel (16).

2. a kind of miniature bearing axial rigidity tester according to claim 1, it is characterised in that the measurement support (14) left side is provided with rotation nut (13).

3. a kind of miniature bearing axial rigidity tester according to claim 1, it is characterised in that the bearing core (2) Top is provided with operation driver (1).

4. a kind of miniature bearing axial rigidity tester according to claim 1, it is characterised in that the double-acting cylinder (8) it is internally provided with accurate sensor (19).

5. a kind of miniature bearing axial rigidity tester according to claim 1, it is characterised in that the bearing measuring platform (17) lower section is provided with pressure sensor (18).