Experimental device for testing sealing performance of sealing brush

Abstract

The utility model provides a sealing brush sealing performance test experiment device which comprises a pressure groove body, an adjusting mechanism is installed on the pressure groove body, a supporting frame is fixedly connected with the pressure groove body, a telescopic piece is fixedly connected in the supporting frame, a sealing piece is used for sealing a cavity of the pressure groove body, and the telescopic piece is fixedly connected in the cavity of the pressure groove body. The output end of the telescopic piece drives the sealing piece to extend into the pressure tank body, then the sealing space of the pressure tank body is changed, the telescopic piece in the supporting frame is started to drive the sealing piece to extend into the pressure tank body, the position of the sealing piece in the pressure tank body is changed, and then the sealing space of the pressure tank body is changed. The telescopic piece is arranged to provide power for the up-down movement of the sealing piece, and when the sealing brush bodies with different heights are tested, the telescopic piece enables the sealing piece to be adjusted more quickly in the pressure groove body, so that the experiment time is effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing brushes, in particular to a sealing brush sealing performance testing experimental device. Background Art

[0002] The shield tail sealing brush is usually composed of multiple sealing brushes. The gaps between these sealing brushes are filled by injecting shield tail sealing grease to ensure that the slurry synchronously grouting behind the shield tail segment will not leak from the gap between the segment and the shield machine.

[0003] Among them, the sealing brush needs to undergo a sealing performance test before leaving the factory. During the experiment, a pressure test box with a pressure groove is needed to store the sealing brush. After the sealing brush is installed, a cover is used to close the top of the pressure test box. In the actual experimental process, the actual height of the sealing brush is different, and the enclosed space of the pressure test box is not easy to adjust, resulting in a large gap between the top of the sealing brush and the cover, affecting the sealing. Therefore, we propose a sealing performance test device for a sealing brush. Utility Model Content

[0004] The utility model aims to provide a sealing brush sealing performance test device, which adjusts the position of the sealing member in the pressure tank body by a telescopic member, thereby adjusting the closed space of the pressure tank body to prevent the gap between the top of the sealing brush body and the sealing plate from being too large.

[0005] The utility model provides a sealing brush sealing performance test device, comprising a pressure tank body, on which an adjustment mechanism is installed, and the adjustment mechanism is used to adjust the closed space of the pressure tank body;

[0006] The adjustment mechanism includes a support frame, a telescopic member, a sealing member and a guide plate;

[0007] The support frame and the pressure tank body are fixedly connected, the telescopic member is fixedly connected in the support frame, the sealing member is used to close the pressure tank body cavity, the output end of the telescopic member drives the sealing member to extend into the pressure tank body, thereby changing the sealing space of the pressure tank body, the guide plate is inserted into the through groove of the support frame, and the bottom end of the guide plate is fixedly connected to the sealing member.

[0008] Preferably, the sealing member comprises a mounting plate, a strip plate, a positioning pin and a sealing plate;

[0009] The mounting plate is fixedly connected to the output end of the telescopic member, the strip plate is slidably connected in the slide groove of the mounting plate, the strip plate is connected to the mounting plate via the positioning pin, the sealing plate is fixedly connected to the strip plate, and the sealing plate is embedded in the cavity of the pressure tank body to achieve sealing of the cavity of the pressure tank body.

[0010] Preferably, the guide plate is machined with scales.

[0011] Preferably, the telescopic member is a hydraulic cylinder.

[0012] Preferably, a mounting mechanism is provided in the pressure tank body, and the mounting mechanism is used to separate the cavity of the pressure tank body;

[0013] The installation mechanism includes a storage plate, a connecting piece, a sealing brush body and a fixing piece;

[0014] The placement plate is connected to the pressure tank body via the connecting piece, the sealing brush body is embedded in the groove of the placement plate, the sealing brush body is connected to the placement plate via the fixing piece, and the cavity of the pressure tank body is divided by the sealing brush body distributed on the placement plate.

[0015] Preferably, the fixing member comprises a screw, a pressing plate and a nut;

[0016] The screw rod and the storage plate are fixedly connected, the pressure plate is inserted into the screw rod, the pressure plate presses the sealing brush body into the groove of the storage plate, and the nut is used to lock the position of the pressure plate on the screw rod.

[0017] Preferably, a plurality of pressure sensors are installed on the storage plate, and the pressure sensors are evenly distributed along the storage plate.

[0018] Preferably, the connecting piece is a hexagon socket bolt.

[0019] Preferably, the pressure tank body comprises an observation window, and the observation window is used to observe the internal conditions of the pressure tank body.

[0020] Preferably, the pressure tank body further comprises an oil inlet pipe and a liquid inlet pipe, the oil inlet pipe is used to introduce grease into the pressure tank body, and the liquid inlet pipe is used to introduce mud into the pressure tank body.

[0021] The utility model provides a sealing brush sealing performance test device through improvement, which has the following improvements and advantages compared with the prior art:

[0022] Through the coordinated use of the support frame, telescopic parts, seals and guide plates, the telescopic parts in the support frame are started to drive the seals to extend into the pressure tank body. The guide plates move with the seals, and the depth of the seals in the pressure tank body is determined by the guide plates. The position of the seals in the pressure tank body is changed, thereby achieving a change in the sealing space of the pressure tank body. The telescopic parts are set to provide power for the up and down movement of the seals. When testing the sealing brush bodies at different heights, the telescopic parts make the adjustment of the seals in the pressure tank body faster, effectively saving experimental time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the telescopic member, the mounting plate and the guide plate in the utility model;

[0026] Figure 3 It is a structural schematic diagram of the sealing plate, the pressure tank body and the mounting plate in the utility model;

[0027] Figure 4 It is a structural schematic diagram of the screw rod, the pressing plate and the nut in the utility model;

[0028] Figure 5 It is a structural schematic diagram of the sealing brush body, the storage plate and the pressure sensor in the utility model.

[0029] Description of reference numerals:

[0030] 1-pressure tank body, 11-observation window, 12-oil inlet pipe, 13-liquid inlet pipe, 2-adjusting mechanism, 21-support frame, 22-telescopic member, 23-seal, 231-mounting plate, 232-strip plate, 233-locating pin, 234-sealing plate, 24-guide plate, 241-scale, 3-mounting mechanism, 31-storage plate, 311-pressure sensor, 32-connecting member, 33-sealing brush body, 34-fixing member, 341-screw, 342-pressure plate, 343-nut. DETAILED DESCRIPTION

[0031] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0032] In the description of the present invention, it should be understood that the terms "center" - "longitudinal" - "lateral" - "length" - "width" - "thickness" - "up" - "down" - "front" - "back" - "left" - "right" - "vertical" - "horizontal" - "top" - "bottom" - "inside" - "outside" - "clockwise" - "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present utility model, it should be understood that the terms "first"-"second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first"-"second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed"-"connected"-"connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] In this embodiment, if Figure 1 and Figure 2 As shown, a sealing brush sealing performance test experimental device includes a pressure tank body 1, an adjusting mechanism 2 is installed on the pressure tank body 1, the adjusting mechanism 2 is used to adjust the closed space of the pressure tank body 1, the adjusting mechanism 2 includes a support frame 21, a telescopic member 22, a sealing member 23 and a guide plate 24, the support frame 21 and the pressure tank body 1 are fixedly connected, the telescopic member 22 is fixedly connected in the support frame 21, the sealing member 23 is used to seal the cavity of the pressure tank body 1, the output end of the telescopic member 22 drives the sealing member 23 to extend into the pressure tank body 1, thereby changing the sealing space of the pressure tank body 1, the guide plate 24 is inserted in the through groove of the support frame 21, and the bottom end of the guide plate 24 is fixedly connected to the sealing member 23.

[0035] Therefore, when it is necessary to change the sealing space of the pressure tank body 1, the telescopic member 22 in the support frame 21 is started, and the output end of the telescopic member 22 drives the sealing member 23 to extend into the pressure tank body 1. At the same time, the guide plate 24 moves with the sealing member 23, and the position of the sealing member 23 in the pressure tank body 1 is changed, thereby realizing the change of the sealing space of the pressure tank body 1. The setting of the telescopic member 22 makes the change of the sealing space of the pressure tank body 1 faster.

[0036] Furthermore, a cavity is processed in the pressure tank body 1, and the support frame 21 is used to support the telescopic member 22. A strip groove for limiting the upward and downward movement of the guide plate 24 is processed in the support frame 21. The design of the guide plate 24 allows the mounting plate 231 to move vertically with the telescopic member 22.

[0037] In some embodiments, Figure 2 and Figure 3 As shown, the sealing member 23 includes a mounting plate 231, a strip plate 232, a positioning pin 233 and a sealing plate 234. The mounting plate 231 and the output end of the telescopic member 22 are fixedly connected. The strip plate 232 is slidably connected in the slide groove of the mounting plate 231. The strip plate 232 is connected to the mounting plate 231 through the positioning pin 233. The sealing plate 234 and the strip plate 232 are fixedly connected. The sealing plate 234 is embedded in the cavity of the pressure tank body 1 to achieve the closure of the cavity of the pressure tank body 1.

[0038] Furthermore, two slide grooves are processed in the mounting plate 231, and the sealing plate 234 is connected to the bottom of the mounting plate 231 through two strip plates 232. The outer wall of the positioning pin 233 is processed with threads, and the use position of the strip plate 232 in the mounting plate 231 is determined by the positioning pin 233. The sealing plate 234 adopts a detachable connection method, which is convenient for replacement after long-term use.

[0039] In some embodiments, Figure 1 As shown, a scale 241 is processed on the guide plate 24 .

[0040] Furthermore, a scale 241 is machined on the guide plate 24 to facilitate determination of the depth of the sealing plate 234 inserted into the pressure tank body 1 .

[0041] In some embodiments, Figure 1 As shown, the telescopic member 22 is a hydraulic cylinder.

[0042] Furthermore, the telescopic member 22 is used to provide power to drive the sealing plate 234 to move, so as to facilitate adjustment of the position of the sealing plate 234 in the pressure tank body 1 .

[0043] In some embodiments, Figure 4 and Figure 5As shown, a mounting mechanism 3 is provided in the pressure tank body 1, and the mounting mechanism 3 is used to separate the cavity of the pressure tank body 1. The mounting mechanism 3 includes a placement plate 31, a connecting piece 32, a sealing brush body 33 and a fixing piece 34. The placement plate 31 is connected to the pressure tank body 1 through the connecting piece 32, and the sealing brush body 33 is embedded in the groove of the placement plate 31. The sealing brush body 33 is connected to the placement plate 31 through the fixing piece 34, and the cavity of the pressure tank body 1 is separated by the sealing brush body 33 distributed on the placement plate 31.

[0044] Furthermore, the storage plate 31 is installed in the cavity of the pressure tank body 1, and three grooves are processed in the storage plate 31. Three sealing brush bodies 33 are arranged in the grooves of the storage plate 31. A cavity is formed for observation between the sealing brush body 33 at the head end and the sealing plate 234 and the pressure tank body 1, and a grease cavity is formed between the adjacent sealing brush bodies 33 and the sealing plate 234 and the pressure tank body 1. A mud cavity is formed between the sealing brush body 33 at the end and the sealing plate 234 and the pressure tank body 1. The sealing brush body 33 and the storage plate 31 are connected using a fixing part 34.

[0045] In some embodiments, Figure 4 and Figure 5 As shown, the fixing member 34 includes a screw 341, a pressure plate 342 and a nut 343. The screw 341 is fixedly connected to the storage plate 31. The pressure plate 342 is inserted into the screw 341. The pressure plate 342 presses the sealing brush body 33 into the groove of the storage plate 31. The nut 343 is used to lock the position of the pressure plate 342 on the screw 341.

[0046] Furthermore, two screw rods 341 are inserted in each pressure plate 342, and the nut 343 is provided to lock the use position of the pressure plate 342. The sealing brush body 33 is fixed by the pressure plate 342, which changes the traditional bolt connection and requires punching holes in the sealing brush body 33 to prevent the overall structure of the sealing brush body 33 from being damaged.

[0047] In some embodiments, Figure 4 As shown, a plurality of pressure sensors 311 are installed on the storage plate 31 , and the pressure sensors 311 are evenly distributed along the storage plate 31 .

[0048] Furthermore, three pressure sensors 311 are provided, which are respectively located in the mud chamber and the two grease chambers. Since the pressures in the mud chamber and the grease chamber are detected, experimental values ​​can be obtained.

[0049] In some embodiments, Figure 4 As shown, the connecting member 32 is a hexagon socket bolt.

[0050] Furthermore, three connecting members 32 are provided to increase the connection strength between the storage plate 31 and the pressure tank body 1 .

[0051] In some embodiments, Figure 1 As shown, the pressure tank body 1 includes an observation window 11 , and the observation window 11 is used to observe the internal conditions of the pressure tank body 1 .

[0052] Furthermore, four observation windows 11 are provided, and the arrangement of the observation windows 11 facilitates observation of the internal conditions of the mud chamber and the grease chamber.

[0053] In some embodiments, Figure 1 As shown, the pressure tank body 1 further comprises an oil inlet pipe 12 and a liquid inlet pipe 13 . The oil inlet pipe 12 is used to introduce grease into the pressure tank body 1 , and the liquid inlet pipe 13 is used to introduce mud into the pressure tank body 1 .

[0054] Furthermore, two oil inlet pipes 12 are provided corresponding to the two grease chambers respectively, and the liquid inlet pipe 13 is designed to introduce mud into the mud chamber.

[0055] The working principle of this application is described below with a preferred embodiment:

[0056] Place the placement plate 31 in the cavity of the pressure tank body 1, use the connecting piece 32 to connect the placement plate 31 and the pressure tank body 1, then insert the sealing brush body 33 into the groove of the placement plate 31 in turn, then insert the pressing plate 342 into the screw 341, the pressing plate 342 fits the outer wall of the sealing brush body 33, use the nut 343 and the screw 341 to connect and lock the position of the pressing plate 342, connect the sealing brush body 33 and the placement plate 31 through the pressing plate 342, then start the telescopic member 22, the output end of the telescopic member 22 drives the mounting plate 231 to move, the mounting plate 231 drives the guide plate 24 to move, the depth of the sealing plate 234 inserted into the pressure tank body 1 is determined by the guide plate 24, and the mounting plate 231 drives the sealing plate 234 through the strip plate 232 234 moves downward to the cavity of the pressure tank body 1, and then the sealing plate 234 and the top of the sealing brush body 33 fit tightly. At this time, the three sealing brush bodies 33 separate the cavity in the pressure tank body 1, and the grease is introduced into the grease cavity through the two oil inlet pipes 12, and the mud is introduced into the mud cavity through the liquid inlet pipe 13. The pressure values ​​in the grease cavity and the mud cavity are monitored in real time by the pressure sensor 311. When the pressure in the grease cavity reaches the set value, mud continues to be added into the mud cavity to increase its pressure until the grease cavity leaks. The pressure value of the grease cavity at this time is recorded by the pressure sensor 311, and the position of the sealing plate 234 in the pressure tank body 1 is adjusted according to the height of the sealing brush body 33, so that the sealing plate 234 and the sealing brush body 33 are in a tightly fitted state.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A sealing brush sealing performance test device, comprising a pressure tank (1), characterized in that: The pressure tank body (1) is provided with an adjustment mechanism (2), and the adjustment mechanism (2) is used to adjust the closed space of the pressure tank body (1); The adjustment mechanism (2) comprises a support frame (21), a telescopic member (22), a sealing member (23) and a guide plate (24); The support frame (21) and the pressure tank body (1) are fixedly connected, the telescopic member (22) is fixedly connected in the support frame (21), the sealing member (23) is used to seal the cavity of the pressure tank body (1), the output end of the telescopic member (22) drives the sealing member (23) to extend into the pressure tank body (1), thereby changing the sealing space of the pressure tank body (1), the guide plate (24) is inserted into the through groove of the support frame (21), and the bottom end of the guide plate (24) is fixedly connected to the sealing member (23).

2. A sealing brush sealing performance test device according to claim 1, characterized in that: The sealing member (23) comprises a mounting plate (231), a strip plate (232), a positioning pin (233) and a sealing plate (234); The mounting plate (231) is fixedly connected to the output end of the telescopic member (22); the strip plate (232) is slidably connected in the slide groove of the mounting plate (231); the strip plate (232) is connected to the mounting plate (231) via the positioning pin (233); the sealing plate (234) is fixedly connected to the strip plate (232); the sealing plate (234) is embedded in the cavity of the pressure tank body (1) to achieve sealing of the cavity of the pressure tank body (1).

3. The sealing performance test device of a sealing brush according to claim 1, characterized in that: The guide plate (24) is machined with a scale (241).

4. A sealing brush sealing performance test device according to claim 1, characterized in that: The telescopic member (22) is a hydraulic cylinder.

5. The sealing performance test device of a sealing brush according to claim 1, characterized in that: The pressure tank body (1) is provided with a mounting mechanism (3), and the mounting mechanism (3) is used to separate the cavity of the pressure tank body (1); The mounting mechanism (3) comprises a storage plate (31), a connecting piece (32), a sealing brush body (33) and a fixing piece (34); The storage plate (31) is connected to the pressure tank body (1) via the connecting piece (32); the sealing brush body (33) is embedded in a groove of the storage plate (31); the sealing brush body (33) is connected to the storage plate (31) via the fixing piece (34); and the cavity of the pressure tank body (1) is divided by the sealing brush body (33) distributed on the storage plate (31).

6. A sealing brush sealing performance test device according to claim 5, characterized in that: The fixing member (34) comprises a screw rod (341), a pressing plate (342) and a nut (343); The screw rod (341) and the storage plate (31) are fixedly connected, the pressing plate (342) is inserted into the screw rod (341), the pressing plate (342) presses the sealing brush body (33) into the groove of the storage plate (31), and the nut (343) is used to lock the position of the pressing plate (342) on the screw rod (341).

7. The sealing performance test device of a sealing brush according to claim 5, characterized in that: A plurality of pressure sensors (311) are installed on the storage plate (31), and the pressure sensors (311) are evenly distributed along the storage plate (31).

8. The sealing performance test device of a sealing brush according to claim 5, characterized in that: The connecting piece (32) is a hexagon socket bolt.

9. The sealing performance test device of a sealing brush according to claim 1, characterized in that: The pressure tank body (1) comprises an observation window (11), and the observation window (11) is used to observe the internal conditions of the pressure tank body (1).

10. The sealing performance test device of a sealing brush according to claim 1, characterized in that: The pressure tank body (1) further comprises an oil inlet pipe (12) and a liquid inlet pipe (13); the oil inlet pipe (12) is used to introduce grease into the pressure tank body (1); and the liquid inlet pipe (13) is used to introduce mud into the pressure tank body (1).

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