Rotary joint leakage alarm device

Abstract

The utility model discloses a rotary joint leakage alarm device, and relates to the technical field of rotary joint monitoring. Comprising a rotary connector and a mounting cover, the connecting pieces are arranged in the two sides of one end of the mounting cover; the static sealing piece is arranged at the other end of the mounting cover; and the movable sealing piece is arranged on one side of the static sealing piece, and the movable sealing piece is installed at the movable end of the rotary connector. According to the rotary joint leakage alarm device, the outer side of the static end of the rotary joint is sleeved with the mounting cover, the mounting cover seals the static end of the rotary joint through the sealing air bag, and the other end of the mounting cover is provided with the static sealing piece and the movable sealing piece; the static sealing piece and the movable sealing piece are matched to seal the movable end of the rotary connector while work of the rotary connector is not affected, loss of media in the rotary connector when the rotary connector leaks is avoided, and due to the sealed arrangement, the sensor set can conveniently detect the rotary connector for transmitting gas media.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary joint monitoring, in particular to a rotary joint leakage alarm device. Background Art

[0002] During the use of the floor-type boring machine tool rotary joint, the seal will age and leak, which will pollute the entire tank of hydraulic oil. The hydraulic oil pollution will make the processing accuracy unable to be guaranteed, and the replacement of hydraulic oil will cause a lot of economic losses. Under the existing technical conditions, the leakage of the rotary joint is not discovered in time, resulting in a huge cost investment in replacing the hydraulic oil.

[0003] The utility model with publication number CN 218441855 U discloses a rotary joint leakage alarm device, comprising a rotary joint and a boring bar, wherein a sensor is arranged inside the protective cover, a rotary joint is arranged at the rear end of the boring bar, and the rotary joint is arranged inside the protective cover.

[0004] As shown in the above-mentioned utility model, when the existing detection device leaks at the rotary joint seal due to aging, the sensor sends a signal to the system and alarms, thereby preventing water from flowing into the hydraulic oil and causing pollution. However, the general detection device does not seal the leakage of the rotary connector, so that the medium inside the rotary connector will still be lost when the rotary connector leaks, and if the rotary connector transmits a gaseous medium, the accuracy of the leakage detection of the existing detection device will be reduced. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a rotary joint leakage alarm device to solve the above-mentioned problems.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a rotary joint leakage alarm device, comprising:

[0007] A rotary connector and a mounting cover, wherein one end of the mounting cover is sleeved on the outside of the stationary end of the rotary connector, and a sensor group is mounted on the inner wall of the other end of the mounting cover for detecting leakage of the rotary connector;

[0008] Connectors, which are arranged inside both sides of one end of the mounting cover and are used to fix the mounting cover on the rotating connector;

[0009] A static seal, which is arranged at the other end of the mounting cover and is used for static sealing;

[0010] A dynamic seal is arranged on one side of the static seal. The dynamic seal is installed at the movable end of the rotary connector and cooperates with the static seal to play a role of sliding seal.

[0011] Preferably, a plurality of sensor groups distributed in a circular array are fixed on the inner wall of the other end of the mounting cover, a sealing airbag is bonded to the inner wall of the middle part of the mounting cover, the inner wall of the sealing airbag is tightly fitted with the stationary end of the rotating connector, an inflation head is arranged on the outer side of the middle part of the mounting cover, the inflation head is connected with the sealing airbag, and a plurality of mounting holes distributed in a circular array are provided on the outer edge of the other end of the mounting cover.

[0012] Preferably, the connecting member includes a pressure plate arranged inside both sides of one end of the mounting cover, a rubber pad is bonded to one side of the pressure plate, the rubber pad is fitted with the stationary end of the rotating connector, and a threaded knob is movably connected to the middle part of the other side of the pressure plate through a bearing, screw grooves are opened on both sides of one end of the mounting cover, and the threaded knob is connected with the screw groove.

[0013] Preferably, guide rods are fixed at both ends of the other side of the pressure plate, guide grooves are provided on both sides of one end of the mounting cover, and one end of the guide rod is located in the guide groove.

[0014] Preferably, the static seal comprises a static seal ring, one end edge of the static seal ring is connected to the mounting hole on the mounting cover via a plurality of bolts, and a baffle plate in an annular structure is fixed to the outer side of the static seal ring.

[0015] Preferably, the dynamic seal includes a dynamic sealing ring, which is tightly fitted with the movable end of the rotary connector through a sealing ring, and the dynamic sealing ring is located on the inner side of the baffle. An extension plate arranged in an annular structure is fixed to the outer side of the dynamic sealing ring, and a fixed seat is arranged on the inner side of the extension plate. The fixed seat is fixed to the outer side of the movable end of the rotary connector, and a plurality of grooves distributed in a circular array are provided on one side edge of the fixed seat, and a spring is arranged in the groove, and one end of the spring is connected to the dynamic sealing ring.

[0016] Beneficial Effects

[0017] The utility model provides a rotary joint leakage alarm device. Compared with the prior art, it has the following beneficial effects:

[0018] 1. The rotary joint leakage alarm device is provided with a mounting cover on the outer side of the stationary end of the rotary joint, and the mounting cover seals the stationary end of the rotary joint through a sealing airbag. A static seal and a dynamic seal are provided at the other end of the mounting cover. The static seal and the dynamic seal cooperate to seal the movable end of the rotary joint without affecting the operation of the rotary joint, thereby preventing the loss of the medium therein when the rotary joint leaks. At the same time, the sealing setting also facilitates the sensor group in the mounting cover to detect the rotary joint that transmits the gas medium.

[0019] 2. The rotary joint leakage alarm device is provided with a connector on the mounting cover. The connector fixes the mounting cover to the stationary end of the rotary connector through two pressure plates, thereby improving the stability of the installation of the device. The pressure plate is adjusted by a threaded knob, and the sealing airbag in the mounting cover enables the device to adapt to rotary connectors of different widths, thereby improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the connector of the utility model;

[0022] Figure 3 This is a schematic diagram of the back side of the installation cover structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the static seal of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the dynamic seal ring of the utility model;

[0025] Figure 6 It is a schematic diagram of the fixing seat structure of the utility model.

[0026] In the figure: rotating connector 1, mounting cover 2, sensor group 21, sealing airbag 22, inflation head 23, mounting hole 24, connector 3, pressure plate 31, rubber pad 32, threaded knob 33, screw groove 34, guide rod 35, guide groove 36, static seal 4, static sealing ring 41, bolt 42, baffle 43, dynamic seal 5, dynamic sealing ring 51, extension plate 52, fixing seat 54, groove 55, spring 56. DETAILED DESCRIPTION

[0027] 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.

[0028] The utility model provides two technical solutions:

[0029] Figure 1-3 A first embodiment is shown: a rotary joint leakage alarm device, comprising:

[0030] A rotary connector 1 and a mounting cover 2, one end of the mounting cover 2 is sleeved on the outer side of the stationary end of the rotary connector 1, a sensor group 21 is installed on the inner wall of the other end of the mounting cover 2, the sensor group 21 is used to detect leakage of the rotary connector 1, a plurality of sensor groups 21 distributed in a ring array are fixed on the inner wall of the other end of the mounting cover 2, and the cooperation of multiple sensors improves the detection accuracy of the device, a sealing airbag 22 is bonded to the middle inner wall of the mounting cover 2, the sealing airbag 22 can fit tightly with the stationary end of the rotary connector 1 after inflation, and is suitable for rotary connectors 1 of different thicknesses, playing a good sealing role, an inflation head 23 is arranged on the outer side of the middle of the mounting cover 2, the inflation head 23 is connected to the sealing airbag 22, the sealing airbag 22 can be quickly inflated through the inflation head 23, so that it plays a sealing role, and a plurality of mounting holes 24 distributed in a ring array are opened on the outer edge of the other end of the mounting cover 2.

[0031] The connecting member 3 is arranged inside the two sides of one end of the mounting cover 2, and is used to fix the mounting cover 2 on the rotating connector 1. The connecting member 3 includes a pressing plate 31 arranged inside the two sides of one end of the mounting cover 2. A rubber pad 32 is bonded to one side of the pressing plate 31. The rubber pad 32 fits the stationary end of the rotating connector 1. The setting of the rubber pad 32 prevents the pressing plate 31 from causing damage to the rotating connector 1 and improves the friction effect. The middle part of the other side of the pressing plate 31 is movably connected with a threaded knob 33 through a bearing. A screw groove 34 is provided on both sides, and the threaded knob 33 is connected with the screw groove 34. The threaded knob 33 and the screw groove 34 cooperate to drive the pressure plate 31 to move, so that the two pressure plates 31 cooperate to fix the mounting cover 2 on the rotating connector 1 with different thicknesses. Guide rods 35 are fixed at both ends of the other side of the pressure plate 31, and guide grooves 36 are provided on both sides of one end of the mounting cover 2. One end of the guide rod 35 is located in the guide groove 36. The guide rod 35 and the guide groove 36 cooperate to play a guiding role, so that the pressure plate 31 maintains linear movement.

[0032] Figure 1 and 4 -6 shows a second embodiment, which mainly differs from the first embodiment in that it includes a static seal 4, which is arranged at the other end of the mounting cover 2 for static sealing. The static seal 4 includes a static sealing ring 41, and one end edge of the static sealing ring 41 is connected to the mounting hole 24 on the mounting cover 2 through a plurality of bolts 42, and a baffle 43 arranged in an annular structure is fixed to the outer side of the static sealing ring 41.

[0033] Dynamic seal 5, the dynamic seal 5 is arranged on one side of the static seal 4, the dynamic seal 5 is installed at the movable end of the rotary connector 1, and cooperates with the static seal 4 to play a role of sliding seal, the dynamic seal 55 includes a dynamic seal ring 51, the dynamic seal ring 51 is tightly fitted with the movable end of the rotary connector 1 through the sealing ring, the dynamic seal ring 51 rotates with the movable end of the rotary connector 1, and cooperates with the static seal ring 41 to play a role of rotating seal, the dynamic seal ring 51 is located on the inner side of the baffle 43, an extension plate 52 arranged in an annular structure is fixed to the outer side of the dynamic seal ring 51, a fixed seat 54 is arranged on the inner side of the extension plate 52, the fixed seat 54 is fixed to the outer side of the movable end of the rotary connector 1, a plurality of grooves 55 distributed in a ring array are provided on one side edge of the fixed seat 54, a spring 56 is arranged in the groove 55, one end of the spring 56 is connected to the dynamic seal ring 51, and the setting of the spring 56 plays a certain squeezing effect on the dynamic seal ring 51, so that the dynamic seal ring 51 and the static seal ring 41 keep in close contact.

[0034] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0035] When in use, firstly sleeve the installation cover 2 on the outside of the static end of the rotary connector 1, then fix the static seal ring 41 on the other end of the installation cover 2 by means of the bolt 42, then select the corresponding dynamic seal ring 51 assembly according to the thickness of the movable end of the rotary connector 1, then sleeve the dynamic seal ring 51 on the outside of the movable end of the rotary connector 1, then fix the fixing seat 54 on the outside of the movable end of the rotary connector 1 by means of internal and external threads until the spring 56 on the fixing seat 54 fits with the dynamic seal ring 51, then move the installation cover 2 until the static seal ring 41 fits with the dynamic seal ring 51, then turn the threaded knob 33, the threaded knob 33 cooperates with the screw groove 34 to drive the pressure plate 31 to move, until Until the rubber pad 32 on the pressure plate 31 contacts the rotary connector 1, the mounting cover 2 is fixed, and then the threaded knob 33 is fine-tuned to ensure that the center line of the mounting cover 2 is as close to the center line of the rotary connector 1 as possible, and then the inflation head 23 is inflated by an external inflation mechanism to expand the sealing airbag 22 until the sealing airbag 22 is tightly fitted with the stationary end of the rotary connector 1, thereby playing a sealing role and sealing the connection of the rotary connector 1. The connection of the rotary connector 1 is monitored by the sensor group 21 in the mounting cover 2. When the rotary connector 1 leaks, the sensor group 21 transmits data to an external alarm, causing the alarm to sound an alarm.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary joint leakage alarm device, characterized in that ,include: A rotary connector and a mounting cover, wherein one end of the mounting cover is sleeved on the outside of the stationary end of the rotary connector, and a sensor group is mounted on the inner wall of the other end of the mounting cover for detecting leakage of the rotary connector; Connectors, which are arranged inside both sides of one end of the mounting cover and are used to fix the mounting cover on the rotating connector; A static seal, which is arranged at the other end of the mounting cover and is used for static sealing; A dynamic seal is arranged on one side of the static seal. The dynamic seal is installed at the movable end of the rotary connector and cooperates with the static seal to play a role of sliding seal.

2. A rotary joint leakage alarm device according to claim 1, characterized in that: A plurality of sensor groups distributed in a circular array are fixed on the inner wall of the other end of the mounting cover, a sealing airbag is bonded to the inner wall of the middle part of the mounting cover, the inner wall of the sealing airbag is tightly fitted with the stationary end of the rotating connector, an inflation head is arranged on the outer side of the middle part of the mounting cover, the inflation head is communicated with the sealing airbag, and a plurality of mounting holes distributed in a circular array are opened on the outer edge of the other end of the mounting cover.

3. A rotary joint leakage alarm device according to claim 1, characterized in that: The connecting piece includes a pressure plate arranged inside both sides of one end of the mounting cover, a rubber pad is bonded to one side of the pressure plate, the rubber pad is fitted with the stationary end of the rotating connector, a threaded knob is movably connected to the middle part of the other side of the pressure plate through a bearing, screw grooves are opened on both sides of one end of the mounting cover, and the threaded knob is connected through the screw grooves.

4. A rotary joint leakage alarm device according to claim 3, characterized in that: Guide rods are fixed at both ends of the other side of the pressure plate, and guide grooves are opened on both sides of one end of the installation cover, and one end of the guide rod is located in the guide groove.

5. A rotary joint leakage alarm device according to claim 1, characterized in that: The static seal comprises a static seal ring, one end edge of which is connected to a mounting hole on a mounting cover via a plurality of bolts, and a baffle plate in an annular structure is fixed to the outer side of the static seal ring.

6. A rotary joint leakage alarm device according to claim 1, characterized in that: The dynamic seal comprises a dynamic seal ring, which is tightly fitted with the movable end of the rotary connector via a seal ring. The dynamic seal ring is located on the inner side of the baffle plate. An extension plate arranged in an annular structure is fixed to the outer side of the dynamic seal ring. A fixing seat is arranged on the inner side of the extension plate. The fixing seat is fixed to the outer side of the movable end of the rotary connector. A plurality of grooves distributed in an annular array are provided on one side edge of the fixing seat. A spring is arranged in the groove, and one end of the spring is connected to the dynamic seal ring.

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