WO2020244135A1

WO2020244135A1 - Underwater construction equipment pressurization compensator

Info

Publication number: WO2020244135A1
Application number: PCT/CN2019/115170
Authority: WO
Inventors: 朱长林; 乔国华
Original assignee: 上海中联重科桩工机械有限公司
Priority date: 2019-06-05
Filing date: 2019-11-01
Publication date: 2020-12-10
Also published as: CN110230331A

Abstract

The present application provides an underwater construction equipment pressurization compensator, comprising a bladder, a housing, and a pressure member. The bladder is disposed in the housing; an opening is formed on the housing so that the cavity outside the bladder is communicated with the cavity outside the housing; the pressure member is disposed outside the bladder and abuts against the bladder to apply a pressure to the bladder to squeeze the bladder. In the underwater construction equipment pressurization compensator of the present application, an elastic member is provided to apply a pressure to the bladder, so that the liquid in the bladder generates an additional pressure, and thus, the difference between the pressure of the liquid inside the bladder and the pressure of the liquid outside the bladder can be increased, thereby overcoming the shortcoming of small difference between the pressures inside and outside the pressure compensator using only a bladder, and the bladder structure does not have the problem of failure caused by jamming and has high reliability.

Description

Pressurization compensator for underwater construction equipment

Technical field

This application relates to the technical field of foundation construction, and in particular to a booster compensator for underwater construction equipment.

Background technique

The milling tool holder of the slot milling machine is a steel frame with hydraulic and electrical control system. The bottom is equipped with two drums with milling teeth. The two drums rotate at low speed and in opposite directions. The milling teeth will mill the surrounding rock. , Through the sand suction port in the middle of the milling wheel, drain the excavated slag and mud to the ground mud station for centralized treatment and then return to the trough section, and repeat the cycle until the final hole becomes a trough. Slot milling machine is an important construction equipment in foundation construction.

For construction equipment in underwater environments such as slot milling machines, the construction depth can reach 20-150 meters underground. As the depth of the working area of construction equipment increases, the water pressure continues to increase, and the impact of mud and other impurities on the equipment sealing becomes more serious. At this time, not only the internal pressure of the working device and the external water pressure are required to balance each other, but also the key structure is required For example, the pressure in the transmission structure is slightly higher than the environmental pressure to ensure the normal operation of construction equipment while avoiding the intrusion of external mud into the work equipment.

A booster compensator for underwater construction equipment uses an open piston to sense the external mud pressure and transmit it to the inside of the transmission device. However, the piston is immersed in the mud, and it is easy to jam and cause failure. An open exposed skin bladder is used to sense the external mud pressure and transmit it to the inside of the transmission device. At the same time, the bladder is used to generate systolic pressure so that the internal pressure is greater than the external pressure. The open and exposed skin bladder is easy to rupture, the contraction force is limited, and the internal and external pressure difference cannot be too large, generally not exceeding the external pressure of 1 bar, which is difficult to meet the requirements.

The foregoing description is to provide general background information and does not necessarily constitute prior art.

Summary of the invention

technical problem

The solution to the problem

Technical solutions

The purpose of this application is to provide a booster compensator for underwater construction equipment, which can provide a sufficient internal and external pressure difference.

The present application provides a pressurization compensator for underwater construction equipment, which includes a bladder, a shell, and a pressure piece. The bladder is arranged in the shell, and an opening is opened on the shell to make a cavity outside the bladder In communication with the cavity outside the casing, the pressure member is arranged outside the skin bladder and abuts the bladder to apply pressure to the bladder to squeeze the bladder.

In one of the embodiments, the underwater construction equipment pressurization compensator further includes a tray, which is movably arranged between the pressure member and the bladder, and the pressure member abuts against the Bladder.

In one of the embodiments, the bladder includes opposite first and second ends, the second end of the bladder is arc-shaped, the side of the tray facing the bladder is arc-shaped, and The shape corresponds to the shape of the second end of the bladder.

In one of the embodiments, the shell has a cylindrical shape with the opening at one end, and the shell is sleeved outside the bladder.

In one of the embodiments, the pressure member is an elastic member.

In one of the embodiments, the underwater construction equipment pressurization compensator further includes a base connected to the housing, and one end of the elastic member abuts against the base.

In one of the embodiments, the bottom of the tray is provided with a positioning groove, one end of the elastic member is clamped into the positioning groove, the side of the base facing the bladder is provided with a guide sleeve, and the elastic member The end abutting the base is accommodated in the guide sleeve.

In one of the embodiments, the underwater construction equipment pressurization compensator further includes an adjustment piece located between the elastic member and the base and/or between the housing and the base .

In one of the embodiments, the adjustment piece includes an inner adjustment piece and an outer adjustment piece, the inner adjustment piece is located between the elastic member and the base, and the outer adjustment piece is located between the housing and the base. Between the bases.

In one of the embodiments, the base includes a bottom plate and a side wall, the side wall is provided on a side of the bottom plate away from the bladder, the bottom plate is provided with a through hole, and the side wall is provided with a scale The underwater construction equipment pressurization compensator further includes a limit rod and a limit block, one end of the limit rod is connected to the tray, and the other end extends through the through hole into the base The side of the bottom plate away from the elastic member, the limit block is provided on the limit rod, and the limit block is located on the side of the bottom plate away from the elastic member; the underwater construction equipment increases The pressure compensator also includes an indicator disc, which is arranged on the limit rod.

The beneficial effects of the invention

Beneficial effect

In the pressurization compensator for underwater construction equipment of the present application, an elastic member is provided to apply pressure to the bladder, so that the liquid in the bladder generates additional pressure, which can increase the difference between the liquid pressure inside the bladder and the liquid pressure outside the bladder, which overcomes pure The bladder pressure compensator has the disadvantage of small pressure difference between the inside and outside, and the bladder structure does not have the problem of jamming failure, and has high reliability.

Brief description of the drawings

Description of the drawings

FIG. 1 is a schematic diagram of the principle of a booster compensator for underwater construction equipment according to an embodiment of the application.

Figure 2 is a top view of the booster compensator of the underwater construction equipment shown in Figure 1.

Figure 3 is a side view of the booster compensator of the underwater construction equipment shown in Figure 1.

Invention embodiment

Embodiments of the invention

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

Please refer to FIGS. 1 to 3, the pressurization compensator for underwater construction equipment provided in an embodiment of the present application includes a bladder 11, a connecting pipe 12, a housing 13 and an elastic member 15. The bladder 11 is provided in the housing 13, and the bladder 11 is used for containing liquid. One end of the connecting tube 12 extends into the bladder 11, and the other end extends into the bladder 11 and is used to extend into the transmission device and other mechanisms, so as to communicate the inside of the bladder 11 with the transmission device and other mechanisms through the connection tube 12, so that The environmental pressure is equal to the pressure in the bladder 11. An opening is opened on the casing 13 to allow the cavity outside the bladder 11 to communicate with the cavity outside the casing 13. The elastic member 15 is disposed outside the skin bladder 11 and abuts against the bladder 11 to apply pressure to the bladder 11 to press the bladder 11. It can be understood that the elastic member 15 can also be replaced by other pressure members, such as a hydraulic oil cylinder or an air cylinder, as long as the bladder 11 can be pressed against the bladder 11.

In the pressurization compensator of the underwater construction equipment, an elastic member is provided to apply pressure to the bladder 11, so that the liquid in the bladder 11 generates additional pressure, which can increase the difference between the liquid pressure inside the bladder 11 and the liquid pressure outside the bladder 11 to overcome The shortcomings of the pure bladder pressure compensator are small internal and external pressure difference, and the bladder structure does not have the problem of jamming failure, and has high reliability.

In this embodiment, the bladder 11 includes opposite first and second ends, the connecting tube 12 extends from the first end of the bladder 11, and the elastic member 15 is provided at the second end of the bladder 11. Specifically, the first end and the second end of the bladder 11 are both arc-shaped.

In this embodiment, the housing 13 is cylindrical with an opening at one end, the housing 13 is sleeved outside the bladder 11, and the end of the housing 13 without an opening is provided at the first end of the bladder 11. The connecting tube 12 passes through the housing 13 and extends into the bladder 11. Specifically, the inner surface of the top of the housing 13 is an arc surface with a shape corresponding to the first end of the bladder 11.

Specifically, the housing 13 includes a receiving cavity 132 located at the second end of the bladder 11 away from the first end, and the elastic member 15 is located in the receiving cavity 132.

In this embodiment, the elastic member 15 is a compression spring. It is understandable that the elastic member 15 can also be a tension spring, as long as it can apply pressure to the bladder 11 to squeeze the bladder 11. For example, one end of the tension spring can be connected to the bladder 11, and the other end can be connected to the middle of the housing 13. The tension of the tension spring can pull the end of the bladder 11 toward the middle, and exert pressure on the bladder 11.

In this embodiment, the underwater construction equipment pressurization compensator further includes a tray 17 movably provided between the elastic member 15 and the bladder 11, and the elastic member 15 abuts the bladder 11 through the tray 17. The tray 17 can form a package protection for the bladder 11 to prevent the elastic member 15 from damaging the bladder 11. Specifically, the tray 17 is also located in the aforementioned receiving cavity 132. The elastic member 15 can push the tray 17 to move up and down.

Specifically, a gap is provided between the inner peripheral surface of the housing 13 and the outer peripheral surface of the tray 17, so that the housing 13 and the tray 17 will not be jammed under the action of mud.

Specifically, the side of the tray 17 facing the bladder 11 is arc-shaped, and its shape corresponds to the shape of the second end of the bladder 11. In this way, the bottom of the tray 17 and the second end of the bladder 11 form close contact and wrap, so that the protection effect is better.

Specifically, the bottom of the tray 17 is provided with a positioning groove 172, and one end of the elastic member 15 is clamped into the positioning groove 172 to prevent the elastic member 15 from moving randomly.

In this embodiment, the underwater construction equipment pressurization compensator further includes a base 19 connected to the housing 13, and one end of the elastic member 15 abuts against the base 19.

Specifically, a guide sleeve 192 is provided on the side of the base 19 facing the bladder 11, and one end of the elastic member 15 abutting the base 19 is accommodated in the guide sleeve 192. When the elastic member 15 is stretched and deformed, the guide sleeve 192 will center the elastic member 15 to avoid its skew and cause uneven force.

Specifically, the base 19 includes a bottom plate 194 and a side wall 196. The side wall 196 is disposed on a side of the bottom plate 194 away from the bladder 11. The bottom plate 194 is provided with a through hole 197, and the side wall 196 is provided with a scale 198.

In this embodiment, the underwater construction equipment pressurization compensator further includes a regulating piece located between the elastic member 15 and the base 19 and/or between the housing 13 and the base 19. Specifically, in this embodiment, the adjusting piece includes an inner adjusting piece 21 and an outer adjusting piece 23, the inner adjusting piece 21 is located between the elastic member 15 and the base 19, and the outer adjusting piece 23 is located between the housing 13 and the base 19. Increasing the height of the inner adjusting piece 21 or increasing the number of the inner adjusting piece 21 can compress the elastic piece 15 and increase the pre-pressure of the elastic piece 15, thereby increasing the pressure difference between the inside and outside of the bladder pressure compensator, and vice versa, it can reduce the inside and outside of the bladder pressure compensator. Pressure difference; increasing the height of the outer adjusting piece 23 or increasing the number of the outer adjusting piece 23 can stretch the elastic member 15 and reduce the pre-pressure of the elastic member 15, thereby reducing the pressure difference between the inside and outside of the bladder pressure compensator, and vice versa. The pressure difference between the inside and outside of the large bladder pressure compensator. It can be seen that the setting of the adjustment piece can adjust the pressure difference between the inside and outside of the bladder pressure compensator. It can be understood that only one or both of the inner adjusting piece 21 and the outer adjusting piece 23 may be provided.

In this embodiment, the underwater construction equipment pressurization compensator further includes a limit rod 25 and a limit block 27. One end of the limit rod 25 is connected to the tray 17, and the other end extends through the through hole 197 into the bottom plate 194 of the base 19 Below, the limiting block 27 is provided on the limiting rod 25, and the limiting block 27 is located on the side of the bottom plate 194 away from the elastic member 15. During the expansion and contraction of the elastic member 15, the limit rod 25 moves up and down along with the tray 17. When the limit block 27 contacts the bottom plate 194, the tray 17 is prevented from continuing to move upward and the maximum stroke of the elastic member 15 is limited.

Specifically, the limiting block 27 includes two nuts, and both nuts are screwed on the limiting rod 25.

In this embodiment, the underwater construction equipment pressurization compensator further includes an indicator plate 29, which is arranged on the limit rod 25, that is, it can also move up and down with the tray 17. According to the position of the indicating plate 29 aligned with the scale 196 on the base 19, the distance that the tray 17 moves can be indicated.

Specifically, the indicator disk 29 is sandwiched between two nuts, and the position of the nut on the limit rod 25 can be adjusted to adjust the initial position of the indicator disk 29, which can be adapted to the situation where the elastic member 15 has different pre-pressures.

It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. For the same and similar parts between the various embodiments, refer to each other. can. For the terminal-type embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

The above-mentioned embodiments do not constitute a limitation on the protection scope of the technical solution. Any modifications, equivalent replacements and improvements made within the spirit and principles of the above implementation methods shall be included in the protection scope of the technical solution.

Claims

A booster compensator for underwater construction equipment, which is characterized in that it comprises a bladder (11), a shell (13) and a pressure piece, the bladder (11) is arranged in the shell (13), and the shell An opening is opened on the body (13) so that the cavity outside the bladder (11) communicates with the cavity outside the casing (13), and the pressure piece is arranged outside the bladder (11) and abuts The bladder (11) is used to apply pressure to the bladder (11) to squeeze the bladder (11).
The underwater construction equipment pressurization compensator according to claim 1, wherein the underwater construction equipment pressurization compensator further comprises a tray (17), which is movably arranged between the pressure member and the Between the bladder (11), the pressure member abuts against the bladder (11) through the tray (17).
The pressurization compensator for underwater construction equipment according to claim 2, wherein the bladder (11) comprises opposite first and second ends, and the second end of the bladder (11) is An arc shape, the side of the tray (17) facing the bladder (11) is arc-shaped, and its shape corresponds to the shape of the second end of the bladder (11).
The booster compensator for underwater construction equipment according to claim 2, characterized in that a gap is provided between the inner peripheral surface of the housing (13) and the outer peripheral surface of the tray (17).
The pressurization compensator for underwater construction equipment according to claim 1, characterized in that the housing (13) is in the shape of a cylinder with the opening at one end, and the housing (13) is sleeved on the bladder (11) Outside.
The pressurization compensator of underwater construction equipment according to claim 3, characterized in that, the housing (13) includes a side of the second end of the bladder (11) away from the first end. The containing cavity (132), the pressure piece is located in the containing cavity (132).
The pressurization compensator for underwater construction equipment according to claim 2, wherein the pressure member is an elastic member (15).
The underwater construction equipment pressurization compensator according to claim 7, wherein the underwater construction equipment pressurization compensator further comprises a base (19) connected to the housing (13), and the elastic One end of the piece (15) abuts against the base (19).
The booster compensator for underwater construction equipment according to claim 8, characterized in that the bottom of the tray (17) is provided with a positioning groove (172), and one end of the elastic member (15) is locked into the positioning In the groove (172), the side of the base (19) facing the bladder (11) is provided with a guide sleeve (192), and one end of the elastic member (15) abutting against the base (19) is accommodated in the In the guide sleeve (192).
The underwater construction equipment pressurization compensator according to claim 8, characterized in that, the underwater construction equipment pressurization compensator further comprises a regulating piece, and the regulating piece is located between the elastic member (15) and the Between the bases (19) and/or between the housing (13) and the bases (19).
The pressurization compensator for underwater construction equipment according to claim 10, characterized in that, the adjustment piece includes an inner adjustment piece (21) and an outer adjustment piece (23), and the inner adjustment piece (21) is located in the Between the elastic member (15) and the base (19), the outer adjusting piece (23) is located between the housing (13) and the base (19).
The pressurization compensator for underwater construction equipment according to claim 8, wherein the base (19) includes a bottom plate (194) and a side wall (196), and the side wall (196) is provided on the bottom plate. (194) On the side away from the bladder (11), the bottom plate (194) is provided with a through hole (197), and the side wall (196) is provided with a scale (198).
The underwater construction equipment pressurization compensator according to claim 12, characterized in that, the underwater construction equipment pressurization compensator further comprises a limit rod (25) and a limit block (27), the limit One end of the rod (25) is connected to the tray (17), and the other end extends through the through hole (197) into the bottom plate (194) of the base (19) away from the elastic member (15) On one side, the limiting block (27) is provided on the limiting rod (25), and the limiting block (27) is located on the side of the bottom plate (194) away from the elastic member (15) .
The underwater construction equipment pressurization compensator according to claim 13, characterized in that the underwater construction equipment pressurization compensator further comprises an indicator disc (29), the indicator disc (29) is set at the limit On the pole (25).
The underwater construction equipment pressurization compensator according to claim 1, wherein the underwater construction equipment pressurization compensator further comprises a connecting pipe (12), one end of the connecting pipe (12) extends into the Inside the bladder (11), the other end extends out of the bladder (11); the shell (13) has an opening so that the cavity outside the bladder (11) and the outside of the shell (13) The cavity is connected.