CN214063574U

CN214063574U - Compact leakage-proof shield slurry joint

Info

Publication number: CN214063574U
Application number: CN202023230019.5U
Authority: CN
Inventors: 范杰; 张鹰; 陈新
Original assignee: CHANGZHOU HYH HYDRAULIC EQUIPMENT CO LTD
Current assignee: CHANGZHOU HYH HYDRAULIC EQUIPMENT CO LTD
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-08-27
Anticipated expiration: 2030-12-28

Abstract

The utility model relates to a shield muddy water joint is prevented leaking by compact, include: the fixing sleeve is provided with a first channel for muddy water to pass through along the axis direction; the rotating mandrel penetrates through a second channel for muddy water to pass through along the axis direction of the rotating mandrel, and one end of the rotating mandrel is inserted into the fixed sleeve; the copper slip ring is sleeved on the fixed sleeve, and the inner side surface of the copper slip ring is hermetically connected with the outer wall of the rotating mandrel; the gland is fixed at the opening of the fixed sleeve and limits the movement of the copper slip ring; the half card key is clamped between the gland and the copper slip ring, and the inner circle part of the half card key is inserted into the rotating mandrel; the device is provided with a copper slip ring, three O-shaped ring static seals and a fixed sleeve which are arranged in a tight fit manner, under the condition of low-speed full lubrication, the device replaces the prior ball bearing, and three unidirectional rotary seals are used as rotary main seals; the half clamp key is fixed on the rotary mandrel in a matched mode through the gland, plays a role in limiting the movement of the mandrel and the outer sleeve, and replaces the function of the self-aligning bearing.

Description

Compact leakage-proof shield slurry joint

Technical Field

The utility model relates to a muddy water connects specifically is a shield muddy water connects is prevented leaking to compact.

Background

In the slurry water rotary joint of the shield tunneling machine, slurry water is left to a subsequent slurry water conveying pipeline from the front of a cutter head to the right through a channel slurry water channel, and an elastic connector is arranged between the slurry water rotary joint and a slurry conveying pipe. Because the external mud conveying pipe and the muddy water rotary joint cannot be stably coaxial, a fixed sleeve and a rotary mandrel of the muddy water rotary joint always have a certain side-loading external force in the muddy water conveying process. In addition, the impact vibration in the mud water conveying process also enables the rotating mandrel of the mud water rotating joint and the fixed sleeve to always bear the axial push-pull external force. In the past, a self-aligning bearing and a ball bearing are arranged to bear axial push-pull impact force and radial unbalance loading force in operation.

However, since the mud-water joint has a large diameter, the required outer diameters of the ball bearing and the self-aligning bearing are large, which is contradictory to the installation space of some devices.

In summary, how to replace the function of the self-aligning bearing and the ball bearing becomes a problem that researchers of the company need to solve urgently.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: how to replace the functions of a self-aligning bearing and a ball bearing;

in order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model relates to a shield muddy water joint is prevented leaking to compact, include: the fixing sleeve is provided with a first channel for muddy water to pass through along the axis direction; the rotating mandrel penetrates through a second channel for muddy water to pass through along the axis direction of the rotating mandrel, and one end of the rotating mandrel is inserted into the fixed sleeve; the copper slip ring is sleeved on the fixed sleeve, and the inner side surface of the copper slip ring is hermetically connected with the outer wall of the rotating mandrel; the gland is fixed at the opening of the fixed sleeve and limits the movement of the copper slip ring; the half card key is clamped between the gland and the copper slip ring, and one end of the half card key is inserted into the rotating mandrel;

in this scheme, the one end of rotatory dabber injects in the fixed cover, connect rotatory dabber through the sliding sleeve, fixed cover, in the sliding sleeve, the outer lane all is provided with O type circle respectively with rotatory dabber outer wall, fixed cover inner wall is sealed, through setting up the gland with the sliding sleeve restriction at rotatory dabber, in the space that fixed cover constitutes, play and replace the ball bearing effect, take place axial displacement along fixed cover for the rotatory dabber of restriction, insert through hough card key and establish in advancing rotatory dabber, through the gland, the clamp of copper sliding ring establishes, the removal of restriction hough card key, hough card key has replaced self-aligning bearing's function.

In order to increase the sealed lubricating property of copper sliding ring and rotatory dabber, fixed cover, the utility model discloses a this device includes: the first lubricating grease injection port is formed in the top of the fixed sleeve and penetrates through the fixed sleeve; the second lubricating grease injection port is formed in the top of the fixed sleeve and penetrates through the fixed sleeve and the sliding sleeve; the first lubricating leakage port is formed at the bottom of the fixed sleeve and penetrates through the fixed sleeve; the second lubricating leakage port is formed at the bottom of the fixed sleeve and penetrates through the fixed sleeve and the sliding sleeve;

the second lubricating grease injection port is suitable for injecting lubricating oil into the copper slip ring and the rotating mandrel, and the second lubricating leakage port is suitable for discharging the lubricating oil between the copper slip ring and the rotating mandrel; the first lubricating grease injection port is suitable for injecting lubricating oil between the copper slip ring and the fixed sleeve, and the first lubricating leakage port is suitable for discharging the lubricating oil between the copper slip ring and the fixed sleeve.

The utility model has the advantages that: the utility model relates to a compact leakage-proof shield slurry joint, which is provided with a copper slip ring, three O-shaped ring static seals and a fixed sleeve which are arranged in a tight fit way, under the condition of low-speed full lubrication, the compact leakage-proof shield slurry joint replaces the prior ball bearing, and three unidirectional rotary seals are used as rotary main seals; through half card key, fix on rotatory dabber through the gland cooperation, half card key just plays the removal effect of restriction dabber and overcoat, replaces self-aligning bearing's function.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

in the figure: the lubricating device comprises a fixed sleeve 1, a first channel 2, a rotating mandrel 3, a second channel 4, a copper slip ring 5, a gland 6, a Hough card key 7, a first lubricating grease injection port 8, a second lubricating grease injection port 9, a first lubricating leakage port 10 and a second lubricating leakage port 11.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1, the utility model relates to a shield muddy water joint is prevented leaking to compact, include: the fixing sleeve 1 is provided with a first channel 2 for muddy water to pass through along the axis direction; the rotating mandrel 3 is provided with a second channel 4 for muddy water to pass through along the axis direction in a penetrating manner, and one end of the rotating mandrel is inserted into the fixed sleeve 1; the copper slip ring 5 is sleeved on the fixed sleeve 1, and the inner side surface of the copper slip ring is hermetically connected with the outer wall of the rotating mandrel 3; the gland 6 is fixed at the opening of the fixed sleeve 1 and limits the movement of the copper slip ring 5; the half card key 7 is clamped between the gland 6 and the copper slip ring 5, and one end of the half card key is inserted into the rotating mandrel 3;

As shown in fig. 1, in order to increase the sealing and lubricating performance of the copper slip ring, the rotary mandrel and the fixed sleeve, the utility model discloses a this device includes: the first lubricating grease injection port 8 is formed in the top of the fixed sleeve 1 and penetrates through the fixed sleeve 1; the second lubricating grease injection port 9 is formed in the top of the fixed sleeve 1 and penetrates through the fixed sleeve 1 and the sliding sleeve 5; the first lubricating leakage port 10 is formed at the bottom of the fixed sleeve 1 and penetrates through the fixed sleeve 1; the second lubricating leakage port 11 is formed at the bottom of the fixed sleeve 1 and penetrates through the fixed sleeve 1 and the sliding sleeve 5;

The utility model relates to a compact leakage-proof shield slurry joint, which is provided with a copper slip ring, three O-shaped ring static seals and a fixed sleeve which are arranged in a tight fit way, under the condition of low-speed full lubrication, the compact leakage-proof shield slurry joint replaces the prior ball bearing, and three unidirectional rotary seals are used as rotary main seals; through half card key, fix on rotatory dabber through the gland cooperation, half card key just plays the removal effect of restriction dabber and overcoat, replaces self-aligning bearing's function.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a shield muddy water joint is prevented leaking to compact which characterized in that includes:

the fixing sleeve is provided with a first channel for muddy water to pass through along the axis direction;

the rotating mandrel penetrates through a second channel for muddy water to pass through along the axis direction of the rotating mandrel, and one end of the rotating mandrel is inserted into the fixed sleeve;

the copper slip ring is sleeved on the fixed sleeve, and the inner side surface of the copper slip ring is hermetically connected with the outer wall of the rotating mandrel;

the gland is fixed at the opening of the fixed sleeve and limits the movement of the copper slip ring;

and the half card key is clamped between the gland and the copper slip ring, and the inner circle part of the half card key is inserted into the rotating mandrel.

2. The compact leak-proof shield mud joint of claim 1, further comprising:

the first lubricating grease injection port is formed in the top of the fixed sleeve and penetrates through the fixed sleeve;

the second lubricating grease injection port is formed in the top of the fixed sleeve and penetrates through the fixed sleeve and the sliding sleeve;

the first lubricating leakage port is formed at the bottom of the fixed sleeve and penetrates through the fixed sleeve;

and the second lubricating leakage port is formed at the bottom of the fixed sleeve and penetrates through the fixed sleeve and the sliding sleeve.