Pressure test device for bearing sheath

Abstract

The utility model belongs to the technical field of bearing sheath production, and particularly relates to a pressure test device for a bearing sheath, which comprises a workbench, a gear motor is fixedly mounted at the lower end of the workbench, a bevel gear and a first screw are arranged at the upper end of the gear motor, a moving block with a clamping block is spirally mounted on the first screw, and a dust collection bag is fixedly mounted on the right side of the moving block. Vertical frames are fixedly installed on the workbench, a lifting plate is installed between the two vertical frames in a sliding mode, an extrusion block and a pressure sensor are installed on the lifting plate in a sliding mode, and a displayer is fixedly installed on the right side of the vertical frames. The lifting motor drives the second screw to enable the extrusion block on the lifting plate to descend to horizontally stabilize the bearing sheath, the movable motor drives the third screw to enable the pressure sensor to move to the middle to perform pressure test on the bearing sheath, and the device can solve the problems of clamping inclination and inaccurate pressure value caused by dust on the bearing sheath.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing sleeve production, in particular to a pressure testing device for a bearing sleeve. Background Art

[0002] Bearings are an important component in contemporary mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. In the actual use of bearings, in order to ensure the service life and use accuracy of the bearings, it is often necessary to provide a matching bearing sleeve on the outer periphery of the middle bearing. Therefore, the bearing sleeve protects the bearing and effectively ensures the accuracy of mechanical movement. In order to ensure the use accuracy of the bearing sleeve, it is necessary to use a pressure test device to test the compressive strength of the bearing sleeve to meet the production standards of the bearing sleeve.

[0003] The existing bearing sleeve pressure test device directly clamps and tests the pressure of the bearing sleeve. When there is dust on the bearing sleeve and on the fixture, the pressure imbalance during clamping will cause the clamping to tilt, affecting the pressure value during the pressure test. Utility Model Content

[0004] The main purpose of the present disclosure is to provide a pressure testing device for a bearing sleeve to effectively solve the problems raised by the inventor in the above background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A pressure testing device for a bearing sleeve comprises a workbench, a gear motor is fixedly installed at the bottom of the workbench, an output end of the gear motor is fixedly connected to a bevel gear, screw rods are installed horizontally and rotatably on the left and right inner walls of the workbench, the opposite ends of the two screw rods are fixedly connected to the bevel gear and meshed with the bevel gear below, and moving blocks are spirally installed on the two screw rods, a groove is provided on the upper surface of the workbench, the two moving blocks penetrate the workbench and slide in the groove, clamping blocks are fixedly installed on the opposite sides of the two moving blocks, a plane table is fixedly installed at the center of the upper end of the workbench, vertical frames are fixedly installed on the left and right sides of the upper end of the workbench, a lifting plate is slidably installed between the two vertical frames, and an extrusion block and a pressure sensor are slidably installed on the lifting plate.

[0007] Preferably, a screw rod 2 and a limit rod are provided in the left frame, the upper end of the screw rod 2 is fixedly connected to the output end of the lifting motor, the lifting motor is fixedly installed on the upper end of the left frame, the lower end of the screw rod 2 is rotatably installed on the bottom of the frame, the limit rod is parallel to the screw rod 2 and fixedly installed between the upper and lower inner walls of the frame, and a slide groove is provided in the right frame, one end of the lifting plate is slidably installed in the slide groove of the frame, and the other end is respectively spirally installed and penetrated on the screw rod 2 and the limit rod, the screw rod 2 is driven to rotate by the lifting motor, and the screw rod 2 can move the lifting plate up and down.

[0008] Preferably, a mobile motor is fixedly installed on the right side of the lifting plate, the output end of the mobile motor is fixedly connected to screw three, the other end of screw three is rotatably installed on the left inner wall of the lifting plate, two fixed rods are fixedly installed between the inner walls of the lifting plate, the fixed rods are respectively parallel to the two sides of screw three, an extrusion block and a pressure sensor are spirally installed on screw three, the extrusion block and the pressure sensor are both slidably installed on the fixed rod, the extrusion block can first horizontally stabilize the bearing sleeve, and after stabilization, the pressure sensor is used to pressure test the bearing sleeve.

[0009] Preferably, a dust bag is fixedly installed on one of the moving blocks, an electric motor is fixedly installed in the inlet of the dust bag, a dust fan is fixedly connected to the output shaft of the electric motor, and a motor switch is fixedly installed on the upper end of the inlet of the dust bag to prevent dust from accumulating on the flat table and the bearing sleeve, affecting the uneven placement and the pressure value of the pressure test.

[0010] Preferably, a display is fixedly installed on the right side of the right stand, the display is electrically connected to the pressure sensor, and the tested pressure value is displayed on the display.

[0011] Preferably, the opposite ends of the two clamping blocks are both arc-shaped and have soft rubber pads on their surfaces to prevent the clamping from damaging the surface of the bearing sleeve.

[0012] Preferably, the lower end of the pressure sensor is fixedly connected to a pressure contact head, and a buffer pad is provided on the surface of the pressure contact head to prevent the pressure contact head from being damaged by direct contact and affecting the pressure value.

[0013] In view of this, compared with the prior art, the beneficial effects of the utility model are:

[0014] (i) In the present application, the dust suction motor is turned on to rotate the dust suction fan, and the dust suction fan will use wind force to suck the dust particles on the flat table and the bearing sleeve into the dust suction bag to prevent the dust particles on the bearing sleeve from affecting the pressure value.

[0015] (ii) In the present application, the bearing sleeve is stabilized on the workbench, the extrusion block is first lowered to fix the bearing sleeve in a flat surface to prevent tilting, and then the pressure block is used to perform a pressure test on the horizontal bearing sleeve, so that the pressure value of the pressure test is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic diagram of the structure of the pressure testing device for the bearing sleeve provided by the utility model;

[0017] Figure 2 The figure shows the inner side view of the stand of the pressure testing device for the bearing sleeve provided by the utility model;

[0018] Figure 3 The figure is a top view of the interior of the lifting plate of the pressure testing device for the bearing sleeve provided by the utility model;

[0019] Figure 4 The figure shows the structure of the dust collecting bag of the pressure testing device for the bearing sleeve provided by the utility model;

[0020] Figure 5 The figure is a top view of the working table of the pressure testing device for the bearing sleeve provided by the utility model;

[0021] Icons: 1- workbench; 2- stand; 3- display; 4- extrusion block; 5- pressure sensor; 6- pressure contact head; 7- gear motor; 8- bevel gear; 9- screw one; 10- moving block; 11- clamping block; 12- plane table; 13- dust bag; 14- screw two; 15- limit rod; 16- lifting motor; 17- lifting plate; 18- screw three; 19- fixed rod; 20- moving motor; 21- dust fan; 22- electric motor; 23- motor switch. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 , the utility model provides the following embodiments:

[0024] A pressure testing device for a bearing sleeve comprises a workbench 1, a gear motor 7 is fixedly installed at the bottom of the workbench 1, an output end of the gear motor 7 is fixedly connected to a bevel gear 8, screw rods 9 are installed on the left and right inner walls of the workbench 1 for horizontal rotation, opposite ends of two screw rods 9 are fixedly connected to the bevel gear 8 and mesh with the bevel gear 8 below, moving blocks 10 are spirally installed on the two screw rods 9, a groove is provided on the upper surface of the workbench 1, two moving blocks 10 penetrate the workbench 1 and slide in the groove, clamping blocks 11 are fixedly installed on the opposite sides of the two moving blocks 10, the gear motor 7 drives the bevel gear 8 to rotate, the bevel gear 8 drives the screw rod 9 to rotate, the screw rod 9 drives the clamping blocks on the moving blocks to move relatively, and the bearing sleeve is clamped, a plane table 12 is fixedly installed at the center of the upper end of the workbench 1, vertical frames 2 are fixedly installed on the left and right sides of the upper end of the workbench 1, a lifting plate 17 is slidably installed between the two vertical frames 2, and an extrusion block 4 and a pressure sensor 5 are slidably installed on the lifting plate 17.

[0025] Specifically, a screw rod 14 and a limit rod 15 are provided in the left frame 2, the upper end of the screw rod 14 is fixedly connected to the output end of the lifting motor 16, the lifting motor 16 is fixedly installed on the upper end of the left frame 2, the lower end of the screw rod 14 is rotatably installed on the bottom of the frame 2, the limit rod 15 is parallel to the screw rod 14 and fixedly installed between the upper and lower inner walls of the frame 2, and a slide groove is provided in the right frame 2, one end of the lifting plate 17 is slidably installed in the slide groove of the frame 2, and the other end is spirally installed and penetrated on the screw rod 14 and the limit rod 15 respectively, the screw rod 14 is driven to rotate by the lifting motor 16, and the screw rod 14 can make the lifting plate 17 move up and down.

[0026] Specifically, a mobile motor 20 is fixedly installed on the right side of the lifting plate 17, and the output end of the mobile motor 20 is fixedly connected to the screw rod 3 18, and the other end of the screw rod 3 18 is rotatably installed on the inner wall of the left side of the lifting plate 17. Two fixed rods 19 are fixedly installed between the inner walls of the lifting plate 17, and the fixed rods 19 are respectively parallel to the two sides of the screw rod 3 18. The extrusion block 4 and the pressure sensor 5 are spirally installed on the screw rod 3 18, and the extrusion block 4 and the pressure sensor 5 are both slidably installed on the fixed rod 19. The mobile motor 20 rotates the screw rod 3 18, and the screw rod 3 18 drives the extrusion block 4 and the pressure sensor 5 to translate. The extrusion block 4 can first horizontally stabilize the bearing sleeve, and after stabilization, the pressure sensor 5 is used to pressure test the bearing sleeve.

[0027] Specifically, a dust bag 13 is fixedly installed on one of the moving blocks 10, an electric motor 22 is fixedly installed in the entrance of the dust bag 13, a dust fan 21 is fixedly connected to the output shaft of the electric motor, and a motor switch 23 is fixedly installed on the upper end of the entrance of the dust bag 13. The motor switch 23 starts the electric motor 22 to drive the dust fan 21 to rotate, and the dust on the plane table 12 and the bearing sleeve is sucked into the dust bag 13 to prevent the dust from being on the plane table 12 and the bearing sleeve, affecting the uneven placement and the pressure value of the pressure test.

[0028] Specifically, a display 3 is fixedly installed on the right side of the right stand 2 , the display 3 is electrically connected to the pressure sensor 5 , and the tested pressure value is displayed on the display 5 .

[0029] Specifically, the opposite ends of the two clamping blocks 11 are both arc-shaped and have soft rubber pads on their surfaces to prevent the clamping from damaging the surface of the bearing sleeve.

[0030] Specifically, the lower end of the pressure sensor 5 is fixedly connected to the pressure contact head 6 , and a buffer pad is provided on the surface of the pressure contact head 6 to prevent the pressure contact head 6 from being damaged by direct contact and affecting the pressure value.

[0031] The working principle of the utility model is as follows: the bearing sleeve is placed on the flat table 12, the gear motor 7 is turned on, the three meshing bevel gears 8 are rotated, and the screw rod 1 9 is driven to rotate, and the screw rod 1 9 drives the clamping block 11 on the moving block 10 to move relatively, and the bearing sleeve is initially clamped, the lifting motor 16 is turned on to rotate the screw rod 2 14, and the screw rod 2 14 drives the lifting plate 17 to move downward, and the extrusion block 4 on the lifting plate 17 is used to stabilize the horizontal level of the bearing sleeve, and then the bearing sleeve is clamped, and the dust suction fan 21 is rotated by the electric motor 22 to suck the dust particles on the bearing sleeve into the dust suction bag 13, after the dust suction is completed, the moving motor 20 is turned on to drive the screw rod 3 18 to rotate, and the screw rod 3 18 drives the extrusion block 4 and the pressure sensor 5 to move left and right, and the pressure sensor 5 is moved to the top of the bearing sleeve, and the bearing sleeve is pressure tested through the pressure contact head 6, and the pressure value is displayed on the display 3.

[0032] 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 utility model. 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.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model 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 utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A pressure testing device for a bearing sleeve, comprising a workbench (1), characterized in that: A gear motor (7) is fixedly installed at the bottom of the workbench (1), and the output end of the gear motor (7) is fixedly connected to a bevel gear (8). The left and right inner walls of the workbench (1) are both horizontally rotatably installed with screw rods (9). The opposite ends of the two screw rods (9) are fixedly connected to the bevel gear (8) and mesh with the bevel gear (8) below. The two screw rods (9) are both spirally installed with moving blocks (10). A groove is opened on the upper surface of the workbench (1). The two moving blocks (10) penetrate the workbench (1) and slide in the groove. The opposite sides of the two moving blocks (10) are fixedly installed with clamping blocks (11). A plane table (12) is fixedly installed at the center of the upper end of the workbench (1). The upper left and right sides of the workbench (1) are fixedly installed with vertical frames (2). A lifting plate (17) is slidably installed between the two vertical frames (2). The extrusion block (4) and the pressure sensor (5) are slidably installed on the lifting plate (17).

2. A pressure testing device for a bearing sleeve according to claim 1, characterized in that: The left stand (2) is provided with a screw rod 2 (14) and a limit rod (15), the upper end of the screw rod 2 (14) is fixedly connected to the output end of the lifting motor (16), the lifting motor (16) is fixedly installed on the upper end of the left stand (2), the lower end of the screw rod 2 (14) is rotatably installed on the bottom of the stand (2), the limit rod (15) is fixedly installed between the upper and lower inner walls of the stand (2) parallel to the screw rod 2 (14), and a slide groove is provided in the right stand (2), one end of the lifting plate (17) is slidably installed in the slide groove of the stand (2), and the other end is respectively spirally installed and penetrated on the screw rod 2 (14) and the limit rod (15).

3. A pressure testing device for a bearing sleeve according to claim 2, characterized in that: A moving motor (20) is fixedly installed on the right side of the lifting plate (17), the output end of the moving motor (20) is fixedly connected to a screw rod three (18), the other end of the screw rod three (18) is rotatably installed on the left inner wall of the lifting plate (17), two fixing rods (19) are fixedly installed between the inner walls of the lifting plate (17), the fixing rods (19) are respectively parallel to the two sides of the screw rod three (18), the screw rod three (18) is spirally installed with an extrusion block (4) and a pressure sensor (5), and the extrusion block (4) and the pressure sensor (5) are both slidably installed on the fixing rod (19).

4. A pressure testing device for a bearing sleeve according to claim 1, characterized in that: A dust collection bag (13) is fixedly mounted on one of the moving blocks (10), an electric motor (22) is fixedly mounted in the inlet of the dust collection bag (13), a dust collection fan (21) is fixedly connected to the output shaft of the electric motor, and a motor switch (23) is fixedly mounted on the upper end of the inlet of the dust collection bag (13).

5. A pressure testing device for a bearing sleeve according to claim 1, characterized in that: A display (3) is fixedly installed on the right side of the right stand (2), and the display (3) is electrically connected to the pressure sensor (5).

6. A pressure testing device for a bearing sleeve according to claim 1, characterized in that: The opposite ends of the two clamping blocks (11) are both arc-shaped and have soft rubber pads on their surfaces.

7. A pressure testing device for a bearing sleeve according to claim 3, characterized in that: The lower end of the pressure sensor (5) is fixedly connected to a pressure contact head (6), and a buffer pad is provided on the surface of the pressure contact head (6).

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