CN220039769U

CN220039769U - Oil seal rigidity testing machine

Info

Publication number: CN220039769U
Application number: CN202321491083.XU
Authority: CN
Inventors: 倪立伟; 倪彦波
Original assignee: Shanghai Jieying Sealing Technology Co ltd
Current assignee: Shanghai Jieying Sealing Technology Co ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-11-17
Anticipated expiration: 2033-06-12

Abstract

The utility model relates to the technical field of rigidity test equipment, and provides an oil seal rigidity test machine which comprises a frame, a workbench arranged on the frame and used for placing an oil seal framework, a pressing plate arranged above the workbench and a first driving piece for driving the pressing plate to lift along the height direction of the frame so as to compress the oil seal framework, wherein the workbench is provided with a first driving piece; the frame is provided with the fixed subassembly that is used for fixing the oil blanket skeleton, fixed subassembly is provided with two and sets up respectively in oil blanket skeleton both ends face, and fixed subassembly includes fixed part and the second driving piece that drive fixed part moved towards being close to the oil blanket skeleton, be provided with the locating part that restriction oil blanket skeleton radially slided on the fixed part. The utility model has the beneficial effect of improving the fixing effect on the oil seal framework.

Description

Oil seal rigidity testing machine

Technical Field

The utility model relates to the technical field of rigidity test equipment, in particular to an oil seal rigidity test machine.

Background

Oil seals are a common convention designation for seals, simply referred to as lubrication seals. The mechanical element is used for sealing grease, and isolates the parts which need to be lubricated from the output parts in the transmission parts, so that the lubricating oil cannot leak.

Because some oil seals are made of steel-reinforced rubber, after the oil seals are prepared, rigidity test is needed to detect whether the rigidity of an oil seal framework meets the standard. The oil seal framework to be detected is placed between two pressing plates, and is vertically compressed according to a specified condition, so that the deformation reaches a specified range, and the rigidity of the oil seal framework is calculated according to the force causing the deformation measured by a test.

Because the oil seal framework is annular, and the clamp plate is the plane setting, its in-process that compresses the oil seal framework can make the oil seal framework skew to some extent, though be provided with fixed part through in oil seal framework both sides and fix, can make the oil seal framework appear radial removal at the in-process of compression, and it is relatively poor to the location effect of oil seal framework, consequently needs further improvement.

Disclosure of Invention

In order to improve the fixing effect on an oil seal framework, the utility model provides an oil seal rigidity testing machine.

The utility model provides an oil seal rigidity testing machine, which adopts the following technical scheme:

the oil seal stiffness testing machine comprises a frame, a workbench arranged on the frame and used for placing an oil seal framework, a pressing plate arranged above the workbench and a first driving piece for driving the pressing plate to lift along the height direction of the frame so as to compress the oil seal framework; the frame is provided with the fixed subassembly that is used for fixing the oil blanket skeleton, fixed subassembly is provided with two and sets up respectively in oil blanket skeleton both ends face, and fixed subassembly includes fixed part and the second driving piece that drive fixed part moved towards being close to the oil blanket skeleton, be provided with the locating part that restriction oil blanket skeleton radially slided on the fixed part.

By adopting the technical scheme, the oil seal framework is firstly placed between the two fixing parts, the two fixing parts are respectively abutted against the two end faces of the oil seal framework by starting the second driving part, so that the oil seal framework is fixed, and meanwhile, the limiting part is used for limiting the oil seal framework; then starting a second driving piece to drive the pressing plate to move towards the direction close to the oil seal framework so as to compress the peripheral wall of the oil seal framework; in the compression process, through being provided with the locating part, the possibility that radial movement appears in the oil blanket skeleton along the surface of fixed part can be reduced to the fixed effect to the oil blanket skeleton has been improved.

Preferably, the limiting piece comprises two limiting rods which are all rotationally connected to the fixing parts, the two pairs of limiting rods arranged on the two fixing parts are mutually abutted, the two limiting rods arranged on one fixing part rotate in the direction away from each other, and the limiting rods are used for being abutted to the inner peripheral wall of the oil seal framework.

Through adopting above-mentioned technical scheme, through being provided with the gag lever post, when the fixed part of second driving piece drive moves towards being close to the oil blanket skeleton direction, with make the gag lever post on two fixed parts butt each other after, the in-process that the fixed part is close to the oil blanket skeleton gradually, the gag lever post of mutual butt is close to towards the inner peripheral wall that is close to the oil blanket skeleton gradually, when the fixed part butt in the terminal surface of oil blanket skeleton, the gag lever post also butt in succession in the inner peripheral wall of oil blanket skeleton this moment, in order to realize the restriction to the oil blanket skeleton, thereby in order to reduce the possibility that radial movement appears at the clamp plate in the in-process that compresses the oil blanket skeleton.

Preferably, the limiting part further comprises an air bag arranged on the fixing part, the air bag is wrapped on the limiting rod, and the frame is provided with an inflating part for inflating the air bag.

By adopting the technical scheme, as the oil seal framework is in the annular arrangement, the oil seal framework is possibly rotated around the axis of the oil seal framework in the process of compressing the oil seal framework by the pressing plate, so that the compression effect of the pressing plate on the oil seal framework is poor; when the fixing part is abutted to the end face of the oil seal framework, after the air bag is inflated through the inflation piece and is abutted to the inner peripheral wall of the oil seal framework, the contact area between the air bag and the oil seal framework is enlarged, the possibility that the oil seal framework rotates around the axis of the oil seal framework in the compression process is reduced, and therefore the fixing effect of the oil seal framework is further improved; and when matched with the limiting rod, the air bag can be inflated to have a certain shaping effect.

Preferably, a plurality of anti-skid convex points are arranged on the outer surface of the air bag, and the anti-skid convex points are made of silica gel.

Through adopting above-mentioned technical scheme, through being provided with anti-skidding bump, after the gasbag is inflated, the pressure of anti-skidding bump to the oil blanket skeleton increases to make anti-skidding bump atress, with the area of contact between increase anti-skidding bump and the oil blanket skeleton, further increase oil blanket skeleton is around self axis pivoted resistance, in order to reduce the oil blanket skeleton and appear around self axis pivoted possibility at the in-process of compression.

Preferably, an elastic pad is arranged at the end of the limiting rod, which is far away from the fixing part.

Through adopting above-mentioned technical scheme, through being provided with the elastic pad to reduce the tip of gag lever post and appear stabbing the possibility of gasbag.

Preferably, the fixing part comprises a fixing plate abutted to the oil seal framework and a mounting plate connected to the fixing plate in a sliding manner, the limiting rod is arranged on the mounting plate, and the fixing plate is provided with a third driving piece for driving the mounting plate to move towards the direction close to the oil seal framework.

Through adopting above-mentioned technical scheme, through including fixed plate and mounting panel with the fixed part, make the fixed plate be close to towards the terminal surface that is close to the oil blanket skeleton under the promotion of first driving piece earlier, and drive the mounting panel and also together be close to, when the fixed plate butt in the terminal surface of oil blanket skeleton, the gag lever post on the mounting panel is mutual butt this moment, because the gag lever post butt is when the inner peripheral wall of oil blanket skeleton, a little error probably appears, through being provided with the third driving piece, can further increase the butt effect of gag lever post and oil blanket skeleton inner peripheral wall, thereby further improve the fixed effect to the oil blanket skeleton, also can adjust the butt condition of gag lever post and oil blanket skeleton in a flexible way according to the internal diameter of oil blanket skeleton.

Preferably, the second driving part is a first cylinder, a piston rod of the first cylinder is fixedly connected with a first connecting plate, two ends of the first connecting plate are respectively fixedly connected with a second connecting plate, the third driving part is arranged on the first connecting plate, and the fixing plate is detachably connected with the second connecting plate.

Through adopting above-mentioned technical scheme, first cylinder removes with promotion second connecting plate and mounting panel towards the direction that is close to the oil blanket skeleton, starts the third driving piece in order to adjust the butt condition between gag lever post and the oil blanket skeleton according to the internal diameter of oil blanket skeleton afterwards, and through can dismantle the fixed plate and connect in the second connecting plate for the fixed plate can be according to the size of oil blanket skeleton in order to change.

Preferably, the frame is provided with graduation marks along the height direction thereof.

Through adopting above-mentioned technical scheme, through being provided with the scale mark to operate directly perceivedly and draw the altitude dimension, make things convenient for the operator to debug the operation to the testing machine.

In summary, the utility model has the following beneficial effects:

1. in the process of compressing the oil seal framework, the limiting piece is arranged, so that the possibility of radial movement of the oil seal framework along the surface of the fixing part can be reduced, and the fixing effect of the oil seal framework is improved.

2. Through being provided with the piece of aerifing to after aerifing the gasbag and when the butt is at the inner peripheral wall of oil blanket skeleton, with increase the area of contact with between the oil blanket skeleton, reduce the oil blanket skeleton and appear around self axis pivoted possibility at the in-process of compression, thereby further improve the fixed effect to the oil blanket skeleton.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic view of a fixing assembly according to an embodiment of the present utility model;

FIG. 3 is an enlarged partial schematic view of FIG. 2 at A;

FIG. 4 is a schematic view of a limiting member according to an embodiment of the present utility model;

fig. 5 is a schematic top cross-sectional view of a mounting plate in an embodiment of the utility model.

In the figure, 1, a rack; 11. a work table; 12. a pressing plate; 121. a slide plate; 13. a first driving member; 131. a driving motor; 132. a screw rod; 14. scale marks; 15. a support plate; 2. an oil seal framework; 3. a fixing assembly; 4. a fixing part; 41. a fixing plate; 411. inserting blocks; 42. a mounting plate; 421. an air outlet pipe; 422. a channel; 5. a first cylinder; 6. a first connection plate; 61. a second connecting plate; 611. a slot; 62. a second cylinder; 7. a bolt; 71. a nut; 8. a limiting piece; 81. a limit rod; 811. an elastic pad; 82. an air bag; 821. anti-skid convex points; 9. an inflatable member; 91. an inflator pump; 92. and (5) an inflation tube.

Detailed Description

The present utility model will be described in further detail with reference to fig. 1 to 5.

The embodiment of the utility model discloses an oil seal stiffness testing machine.

Examples:

referring to fig. 1, the oil seal stiffness testing machine comprises a frame 1, a workbench 11, a pressing plate 12 and a first driving piece 13, wherein the workbench 11 is horizontally arranged on the frame 1 and used for placing an oil seal framework 2, and the pressing plate 12 is arranged above the workbench 11 and parallel to the workbench 11. The first driving piece 13 is used for driving the pressing plate 12 to lift along the height direction of the frame 1 so as to compress the oil seal framework 2, in this embodiment, the first driving piece 13 comprises a driving motor 131 and a screw rod 132, the driving motor 131 is built in the frame 1, the length direction of the screw rod 132 is parallel to the height direction of the frame 1, the screw rod 132 is coaxially and fixedly connected with an output shaft of the driving motor 131, the pressing plate 12 is far away from a surface fixedly connected with a sliding plate 121 of the workbench 11, and the screw rod 132 is threaded through the sliding plate 121.

Referring to fig. 1, a frame 1 is provided with graduation marks 14 along a height direction thereof, and when the stiffness tester is used for testing an oil seal skeleton 2, the size of the oil seal skeleton and the stroke of a pressing plate 12 can be intuitively observed, so that an operator can conveniently debug the stiffness tester.

Referring to fig. 1 and 2, a frame 1 is provided with fixing assemblies 3 for fixing an oil seal frame 2, and in this embodiment, the fixing assemblies 3 are provided with two fixing assemblies and are respectively disposed on two sides of the oil seal frame 2. The fixing assembly 3 comprises a fixing part 4 and a second driving piece, and the second driving piece drives the fixing part 4 to move towards the position close to the oil seal framework 2.

Referring to fig. 2 and 3, the fixing portion 4 includes two fixing plates 41 and an installation plate 42, the fixing plates 41 are provided on both sides of the installation plate 42, the fixing plates 41 are abutted against the end face of the oil seal frame 2, and the installation plate 42 is slidably connected to the fixing plates 41.

Referring to fig. 2, in the embodiment, the second driving member is a first cylinder 5, an axial direction of a piston rod of the first cylinder 5 is parallel to a length direction of the workbench 11, a supporting plate 15 for installing the first cylinder 5 is fixed on an upper surface of the workbench 11, the first cylinder 5 is fixedly connected to the supporting plate 15, and the piston rod of the first cylinder 5 slides through the supporting plate 15.

Referring to fig. 2 and 3, a piston rod of the first cylinder 5 is fixedly connected with a first connecting plate 6, a length direction of the first connecting plate 6 is parallel to a width direction of the workbench 11, two ends of the first connecting plate 6 are respectively fixedly connected with a second connecting plate 61, in this embodiment, the second connecting plate 61 and the first connecting plate 6 are integrally formed, and a length direction of the second connecting plate 61 is parallel to the length direction of the workbench 11. The fixed plate 41 is detachably connected to the second connecting plate 61, the second connecting plate 61 is provided with a slot 611, the fixed plate 41 is fixedly provided with a plug 411 inserted into the slot 611 in a protruding mode, the side wall of the second connecting plate 61 is threaded with a bolt 7, the bolt 7 is threaded through the plug 411, and the bolt 7 is in threaded connection with a nut 71.

Referring to fig. 4, further, the mounting plate 42 is provided with a limiting member 8 for limiting the radial sliding of the oil seal skeleton 2, the limiting member 8 includes a limiting rod 81 and an air bag 82, the limiting rod 81 is provided with two limiting rods 81 and both hinged to the mounting plate 42, the two limiting rods 81 rotate in directions away from each other, and when the mounting plate 42 moves in directions approaching to the oil seal skeleton 2, the two pairs of limiting rods 81 located on the two mounting plates 42 abut against each other at this time, and the limiting rods 81 abut against the inner peripheral wall of the oil seal skeleton 2.

Referring to fig. 2 and 4, an airbag 82 is wrapped on a limit rod 81 and fixedly connected to an end surface of a mounting plate 42 near an oil seal skeleton 2, and an inflator 9 for inflating the airbag 82 is provided on a frame 1.

Referring to fig. 4 and 5, the inflatable member 9 includes an inflator 91 and an inflation tube 92, the inflator 91 is fixedly connected to the frame 1, an air outlet end of the inflator 91 is fixedly connected to an air inlet end of the inflation tube 92, an air outlet end of the inflation tube 92 is fixedly arranged on the mounting plate 42 in a penetrating manner, an air outlet pipe 421 is fixedly arranged on an end face, close to the oil seal framework 2, of the mounting plate 42 in a penetrating manner, and a channel 422 communicated with the air outlet end of the inflation tube 92 and the air inlet end of the air outlet pipe 421 is arranged in the mounting plate 42.

Referring to fig. 4, further, the outer surface of the air bag 82 is provided with a plurality of anti-slip bumps 821, and in this embodiment, the anti-slip bumps 821 are made of silica gel. For increasing the contact area between the air bag 82 and the inner peripheral wall of the oil seal frame 2, thereby reducing the possibility of the oil seal frame 2 rotating around its own axis during compression.

Referring to fig. 4 and 5, further, an elastic pad 811 is fixedly connected to the free end of the limit lever 81, and the elastic pad 811 abuts against the inner surface of the air bag 82, so as to reduce the possibility that the free end of the limit lever 81 will puncture the air bag 82.

Referring to fig. 3 and 4, further, the first connecting plate 6 is provided with a third driving member that urges the mounting plate 42 to move toward the direction approaching the oil seal frame 2, so as to urge the stopper rods 81 provided on the mounting plate 42 to abut against each other and move toward the inner peripheral wall approaching the oil seal frame 2. In this embodiment, the third driving member is a second cylinder 62, the axial direction of the piston rod of the second cylinder 62 is parallel to the length direction of the workbench 11, the second cylinder 62 is fixedly connected to the first connecting plate 6, the piston rod of the second cylinder 62 slides through the first connecting plate 6, and the piston rod of the second cylinder 62 is fixedly connected to the mounting plate 42.

The implementation principle of the oil seal rigidity testing machine provided by the embodiment of the utility model is as follows: when the rigidity test is carried out on the oil seal framework 2, the oil seal framework 2 is firstly placed between the oppositely arranged fixing plates 41, the first air cylinder 5 is started to move the fixing plates 41 towards the direction close to the oil seal framework 2, when the fixing plates 41 are abutted against the oil seal framework 2, the second air cylinder 62 is started to drive the limiting rods 81 on the mounting plates 42 to be close to each other and abutted against each other, and then the air pump 91 is started to inflate the air bag 82, so that the air bag 82 is abutted against the inner peripheral wall of the oil seal framework 2, and the oil seal framework 2 is fixed;

after the fixing, the driving motor 131 is started to drive the screw rod 132 to rotate, so that the sliding plate 121 descends along the height direction of the frame 1 to drive the pressing plate 12 to compress the oil seal framework 2, and the rigidity test of the oil seal framework 2 is performed.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides an oil blanket rigidity testing machine which characterized in that: the device comprises a frame (1), a workbench (11) arranged on the frame (1) and used for placing an oil seal framework (2), a pressing plate (12) arranged above the workbench (11) and a first driving piece (13) for driving the pressing plate (12) to lift along the height direction of the frame (1) so as to compress the oil seal framework (2); the frame (1) is provided with fixed subassembly (3) that are used for fixing oil blanket skeleton (2), fixed subassembly (3) are provided with two and set up respectively in oil blanket skeleton (2) both ends face, and fixed subassembly (3) are including fixed part (4) and drive fixed part (4) towards the second driving piece that is close to oil blanket skeleton (2) and remove, be provided with limiting piece (8) that restrict oil blanket skeleton (2) radial slip on fixed part (4).

2. The oil seal stiffness tester according to claim 1, wherein: the limiting piece (8) comprises two limiting rods (81) which are connected with the fixing portions (4) in a rotating mode, the two pairs of limiting rods (81) arranged on the two fixing portions (4) are in butt joint, the two limiting rods (81) located on one fixing portion (4) rotate in directions away from each other, and the limiting rods (81) are used for butt joint with the inner peripheral wall of the oil seal framework (2).

3. The oil seal stiffness tester according to claim 2, wherein: the limiting piece (8) further comprises an air bag (82) arranged on the fixing portion (4), the air bag (82) is wrapped on the limiting rod (81), and the frame (1) is provided with an inflating piece (9) for inflating the air bag (82).

4. An oil seal stiffness tester according to claim 3, wherein: the outer surface of the air bag (82) is provided with a plurality of anti-skid convex points (821), and the anti-skid convex points (821) are made of silica gel.

5. An oil seal stiffness tester according to claim 3, wherein: an elastic pad (811) is arranged at the end part of the limiting rod (81) far away from the fixed part (4).

6. The oil seal stiffness tester according to claim 2, wherein: the fixed part (4) comprises a fixed plate (41) abutted to the oil seal framework (2) and a mounting plate (42) connected to the fixed plate (41) in a sliding mode, the limiting rod (81) is arranged on the mounting plate (42), and the fixed plate (41) is provided with a third driving piece for driving the mounting plate (42) to move towards the direction close to the oil seal framework (2).

7. The oil seal stiffness tester according to claim 6, wherein: the second driving piece is a first air cylinder (5), a piston rod of the first air cylinder (5) is fixedly connected with a first connecting plate (6), two ends of the first connecting plate (6) are fixedly connected with a second connecting plate (61) respectively, the third driving piece is arranged on the first connecting plate (6), and the fixing plate (41) is detachably connected with the second connecting plate (61).

8. The oil seal stiffness tester according to claim 1, wherein: the frame (1) is provided with graduation marks (14) along the height direction thereof.