CN219265210U

CN219265210U - Novel dustproof sealing tool for detecting eccentric capacity

Info

Publication number: CN219265210U
Application number: CN202320291329.2U
Authority: CN
Inventors: 杜杰; 战希胜; 贾太宗
Original assignee: Yantai Runfuxiang Oil Seal Co ltd
Current assignee: Yantai Runfuxiang Oil Seal Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-06-27
Anticipated expiration: 2033-02-23

Abstract

The utility model relates to a novel tool for detecting eccentric capacity for dust sealing, which relates to the technical field of sealing ring detection tools and comprises a base, a main shaft, an adjusting disc, a pressure disc and a rotary seat, wherein the base is provided with a cavity and is provided with a pressurizing port communicated with the cavity, one end of the main shaft extends into the cavity and is fixed with the base, the adjusting disc is covered above the cavity and is connected with the base, a sealing ring to be detected is fixed to the adjusting disc and is attached to the main shaft, the cavity is formed into a closed cavity, the pressure disc is fixed above the adjusting disc, and one end of the main shaft extends out of the cavity and is rotationally connected with the rotary seat. The tool for detecting the eccentric capacity for the novel dust seal can detect the eccentric capacity of the sealing ring in any direction.

Description

Novel dustproof sealing tool for detecting eccentric capacity

Technical Field

The utility model relates to a sealing ring detection tool, in particular to a novel tool for detecting eccentric capacity for dust sealing.

Background

The sealing system of the common hydraulic cylinder mainly comprises two parts, namely a sealing part between the rod part and the piston and a dustproof sealing part. The dustproof seal is arranged at the front part (rod part) of the hydraulic cylinder and is used for blocking external impurities. The dust seal is very important for protecting the hydraulic cylinder, and the larger the reciprocating stroke of the hydraulic cylinder is, the larger the eccentric amount is, so that the eccentric resistance of the dust seal is required to be good. Therefore, it is necessary to detect the eccentric capability of the seal ring before it is installed. Based on the above, a tool capable of detecting the eccentric capacity of the sealing ring needs to be designed.

Disclosure of Invention

The utility model aims to: in order to overcome the defects in the prior art, the utility model provides a novel tool for detecting eccentric capacity for dust sealing.

The technical scheme is as follows: in order to achieve the above object, the utility model provides a novel tool for detecting eccentric capability for dust seal, comprising:

the base is provided with a cavity and a pressurizing port communicated with the cavity;

one end of the main shaft extends into the cavity and is fixed with the base;

the adjusting disc is arranged above the cavity in a covering mode, is connected with the base, is fixed to the adjusting disc by a sealing ring to be tested, is attached to the main shaft, and forms a closed cavity with the cavity;

a platen fixed to an upper side of the regulating plate;

and one end of the main shaft extends out of the cavity and is rotationally connected with the rotary seat.

Further, a groove communicated with the cavity is formed in the upper portion of the base, a third locking piece is connected to the side wall of the groove, and the third locking piece penetrates through the side wall of the groove to be abutted to the side wall of the adjusting disc.

Further, the adjusting plate is provided with an adjusting hole with a diameter larger than that of the first locking piece, the first locking piece passes through the adjusting hole and is connected to the base in a threaded manner, and the base and the adjusting plate are fixed through the first locking piece.

Further, the upper surface of the adjusting disk is provided with an annular bulge, the main shaft is arranged in the bulge, and the inner wall of the bulge and the outer wall of the main shaft form a containing space.

Further, the top end of the main shaft is connected with a bearing, and the bearing is fixed through a second locking piece; the rotary seat is sleeved with the bearing to be connected.

Further, the bottom of main shaft is connected with the base through fourth retaining member.

The utility model relates to a novel tool for detecting eccentric capacity for dust seal, which has at least the following technical effects:

fixing a sealing ring to be measured on an adjusting disc, rotating a rotary seat, measuring the eccentric amount of the rotary seat by using a dial indicator, and monitoring the sealing condition of the sealing ring under the condition of the eccentric amount by detecting the air pressure or other markers in a cavity; the adjusting disk can move in any radial direction, so that the eccentric capacity of the sealing ring in any radial direction can be detected; in addition, the main shaft and the adjusting disk can be replaced to adapt to detection of sealing performance of sealing rings of different types.

Drawings

Fig. 1 is a cross-sectional view of the structure of the present utility model.

In the figure, 1, a base; 2. a cavity; 3. a pressurizing port; 4. a main shaft; 5. an adjusting plate; 6. a sealing ring to be tested; 7. a pressure plate; 8. a rotary base; 9. a groove; 10. a third locking member; 11. a first locking member; 12. an adjustment aperture; 13. a protrusion; 14. an accommodating space; 15. a bearing; 16. a fourth locking member; 17. an O-shaped sealing ring; 18. a nut; 19. a second locking member; 20. and a fifth locking member.

Detailed Description

The principles and features of the present utility model are described below with reference to fig. 1, but the examples are provided for illustration only and are not intended to limit the scope of the utility model.

A novel tool for detecting eccentric capacity for dust seal comprises a base 1, a main shaft 4, an adjusting disc 5, a pressure disc 7 and a rotary seat 8.

The upper surface of base 1 is provided with upward open-ended cavity 2, simultaneously, base 1 is provided with the pressurization mouth 3 with cavity 2 intercommunication, pressurization mouth 3 and gas injection/injection equipment intercommunication for simulate actual operating mode. The upper surface of the base 1 is provided with a groove 9 communicating with the cavity 2, and the adjusting disk 5 is placed in the groove 9. The upper surface of the adjusting disk 5 and the upper surface of the base 1 are flush with each other. An O-shaped sealing ring 17 is arranged between the adjusting disc 5 and the base 1. A third locking member 10 is connected to the side wall of the recess 9, the third locking member 10 passing through the side wall of the recess 9 and abutting at its end against the outer wall of the adjustment disc 5. The third locking elements 10 are distributed in a circumferential array, by means of which third locking elements 10 the adjusting disk 5 can be adjusted in any radial direction. The adjusting disk 5 is provided with a plurality of adjusting holes 12, the diameter of the adjusting holes 12 is larger than that of the first locking piece 11, so as to ensure that the first locking piece 11 can be adjusted in the adjusting holes 12, and the first locking piece 11 is a bolt. The first locking member 11 is screwed to the base 1 through the adjustment hole 12, thereby fixing the adjustment plate 5 to the base 1. The center of the rotary seat 8 is provided with a center hole, and the sealing ring 6 to be tested is connected into the center hole. The pressure plate 7 is connected to the upper part of the adjusting plate 5 through a fifth locking member 20, and the fifth locking member 20 is a bolt. The pressing plate 7 axially compresses and fixes the sealing ring 6 to be tested. The upper surface of the adjusting disk 5 is provided with an annular protrusion 13, and the spindle 4 is arranged in the protrusion 13. The inner wall of the protrusion 13 and the outer wall of the spindle 4 form a containing space 14, and a detection object, such as dyed dust or grease, can be placed in the containing space 14, and after the dyed dust which is the same as the containing space 14 appears in the cavity 2, the sealing failure of the sealing ring 6 to be detected is indicated. The main shaft 4 extends into the cavity 2 and is fixed with the base 1 by a fourth locking member 16. The fourth locking member 16 is a bolt. An O-shaped sealing ring 17 is arranged between the main shaft 4 and the base 1. The top end of the main shaft 4 is connected with a bearing 15, a nut 18 is arranged on the end face of the main shaft 4, the bearing 15 is fixed by a second locking piece 19 through the nut 18, and the second locking piece 19 is a bolt. The rotary seat 18 is sleeved with the bearing 15, and the rotary seat 18 can rotate circumferentially. The rotary seat 18 is used for detecting the bearable eccentric amount of the disc sealing ring. During detection, the pointer of the dial indicator is abutted against the outer surface of the rotary seat 18, and the eccentric amount between the main shaft 4 and the central hole of the regulating disc 5 can be detected by rotating for one circle.

The using method of the device comprises the following steps: (1) Mounting the main shaft 4 to the base 1, mounting the sealing ring 6 to be measured to the adjusting disk 5, and then fixing the adjusting disk 5 to the base 1, wherein the main shaft 4 and the central hole of the adjusting disk 5 are ensured to be coaxial; (2) placing a detection object into the accommodating space 14; (3) Unscrewing the third locking piece 10, adjusting the first locking piece 11 to enable the central hole of the adjusting disc 5 and the main shaft 4 to generate a certain eccentric amount, measuring the eccentric amount by using a dial indicator, standing for a period of time, checking whether an object to be detected exists in the cavity 2, if the object to be detected exists, indicating that the eccentric amount exceeds the limit of the sealing ring 6 to be detected at the moment, and if the object to be detected does not exist, indicating that the eccentric amount is the bearable range of the sealing ring 6 to be detected; meanwhile, the sealing state of the sealing ring 6 to be tested can be judged according to the pressure of the cavity 2, and the pressure becomes smaller, so that the sealing ring is proved to be invalid; the pressure is unchanged, so that the sealing performance of the sealing ring is good.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. Novel dustproof sealing is with frock of detecting eccentric ability, its characterized in that includes:

the base (1), the said base (1) has cavity pocket (2), and there are pressurization mouths (3) communicated with cavity pocket (2);

the main shaft (4), one end of the main shaft (4) stretches into the cavity (2) and is fixed with the base (1);

the adjusting disc (5) is arranged above the cavity (2) in a covering mode, is connected with the base (1), and a sealing ring (6) to be detected is fixed to the adjusting disc (5) and is attached to the main shaft (4) to enable the cavity (2) to form a closed cavity;

a pressure plate (7), the pressure plate (7) being fixed above the adjustment plate (5);

and one end of the main shaft (4) extends out of the cavity (2) and is rotationally connected with the rotary seat (8).

2. The novel tool for detecting eccentric capacity for dust sealing according to claim 1, wherein a groove (9) communicated with the cavity (2) is formed above the base (1), a third locking piece (10) is connected to the side wall of the groove (9), and the third locking piece (10) passes through the side wall of the groove (9) to be abutted to the side wall of the adjusting disc (5).

3. The novel tool for detecting eccentric capability for dust seal according to claim 2, wherein the adjusting disk (5) is provided with an adjusting hole (12) with a larger diameter than the first locking member (11), the first locking member (11) is screwed to the base (1) through the adjusting hole (12), and the base (1) and the adjusting disk (5) are fixed through the first locking member (11).

4. The novel tool for detecting eccentric capacity for dust seal according to claim 1, wherein an annular protrusion (13) is arranged on the upper surface of the adjusting disc (5), the main shaft (4) is arranged in the protrusion (13), and a containing space (14) is formed by the inner wall of the protrusion (13) and the outer wall of the main shaft (4).

5. The novel tool for detecting eccentric capacity for dust seal according to claim 1, wherein the top end of the main shaft (4) is connected with a bearing (15), and the bearing (15) is fixed through a second locking piece (19); the rotary seat (8) is sleeved and connected with the bearing (15).

6. The novel tool for detecting eccentric capacity for dust seal according to claim 1, wherein the bottom of the main shaft (4) is connected with the base (1) through a fourth locking piece (16).