CN202561048U

CN202561048U - Mortar box stirring shaft sealing device for shield device

Info

Publication number: CN202561048U
Application number: CN 201220183112
Authority: CN
Inventors: 赵芳; 王幸福; 张丽华; 王晓; 曲明月; 潘景敖
Original assignee: Dalian Huarui Heavy Industry Group Co Ltd
Current assignee: Dalian Huarui Heavy Industry Group Co Ltd
Priority date: 2012-04-26
Filing date: 2012-04-26
Publication date: 2012-11-28
Anticipated expiration: 2022-04-26

Abstract

The utility model discloses a mortar box stirring shaft sealing device for a shield device. The sealing device comprises a support, a hold-down mechanism, a supporting mechanism and a seal assembly. The sealing device is characterized in that the support is sleeved on the outer side of a stirring shaft to be fixed with an end plate of a mortar box body, a corner seal is fixed on the end portion of one side of the support close to the mortar box body through a corner seal gland, a hold-down device II is arranged on the inner side of the support and sleeved and fixed on the stirring shaft, a hold-down device I is sleeved and fixed on the stirring shaft as well, the supporting mechanism is fixed between the hold-down device II and the hold-down device I, floating seals are arranged at two ends of a bearing seat located in the supporting mechanism and tightly pressed through the hold-down device I and the hold-down device II, a round nut is sleeved and fixed on the stirring shaft, and the round nut is fixed on the outer side of the hold-down device I. By means of the mortar box stirring shaft sealing device for the shield device, slurry can be effectively prevented from leaking to the outside of a mortar box from the end portion of the stirring shaft, the service life is prolonged, the replacement is convenient, and the manufacturing costs are greatly lowered.

Description

Shield equipment is with mortar box stirring shaft seal arrangement

Technical field

The utility model relates to the mortar box of tunnel piercing with shield equipment, can also be used on the cement stirring device in the construction industry, and specifically a kind of shield equipment is with mortar box stirring shaft seal arrangement.

Background technique

At present, the existing tunnel driving is with the mortar box of shield equipment filling system, and traditional Stuffing box packing gland formula sealing is adopted in the sealing of stirring shaft usually; The sealing effect of conventional seals is relatively poor, is prone to problems such as leakage or seepage take place, because medium is a mortar; So in case take place to leak or the seepage phenomenon; Cause stirring shaft to damage easily, cause more gross leak, the repair difficulty.

The model utility content

According to the technical problem of above-mentioned proposition, and provide a kind of shield equipment with mortar box stirring shaft seal arrangement.The utility model mainly utilizes the sealing means of angle sealing and floating seal combination, prevents that slurries from draining to the situation of mortar box outside from the stirring shaft end thereby play.Seal life after the improvement increases, and it is convenient to change, and has reduced manufacture cost significantly.The technological means that the utility model adopts is following:

A kind of shield equipment comprises support, hold-down mechanism, supporting mechanism and black box with mortar box stirring shaft seal arrangement, it is characterized in that: said hold-down mechanism comprises hold down gag I and hold down gag II, and said hold down gag I is provided with plug screw; Said black box comprises angle sealing, angle sealing gland, floating seal, O RunddichtringO I, O RunddichtringO II, O RunddichtringO III and O RunddichtringO IV; Said support is nested with at the end plate of the outside of stirring shaft and mortar box casing and fixes; Be provided with said O RunddichtringO III between said support and the said mortar box casing, the sealing of said angle is fixed on the end face of support near said mortar box casing one side through said angle sealing gland; Inboard and the socket that said hold down gag II is arranged on said support is fixed on the said stirring shaft; Be provided with said O RunddichtringO II between said hold down gag II and the said stirring shaft, said hold down gag II is pressed on the part of the said bracket end face of said angle sealing protrusion; Said hold down gag I also socket is fixed on the said stirring shaft; Be provided with said O RunddichtringO IV between said hold down gag I and the said stirring shaft; Be fixed with supporting mechanism between said hold down gag II and the said hold down gag I; Said supporting mechanism comprises bearing support, rolling bearing, inner split ring and outer spacer ring; Said bearing support comprise main body be arranged on the stationary platen on the main body, said bearing support is nested with the outside at said stirring shaft, stationary platen on the said bearing support and said support are fixed; Be provided with said O RunddichtringO I between stationary platen on the said bearing support and the said support; Two said rolling bearings are arranged in the main body of said bearing support, and two said rolling bearings socket respectively are fixed on the said stirring shaft, are separated by said inner split ring and said outer spacer ring between two said rolling bearings; Two said floating seals are separately positioned on the main body two ends of said bearing support, and said hold down gag I and said hold down gag II are pressed to said floating seal respectively in main body two ends and the said hold down gag I of said bearing support and the Seal cage that said hold down gag II forms; Go back socket on the said stirring shaft and be fixed with round nut, said round nut is fixed on the outside of said hold down gag I.

The utlity model has following advantage:

1, adopt the angle sealing to play the effect of the first road barrier, the life-span of greatly having improved floating seal;

2, floating seal has superpower wear resistance, and can compensate automatically behind the end wear;

3, simple in structure, easy for installation, good sealing effect, long service life, the maintenance maintenance cost is low.

The utility model can be used on the mortar box of all shield equipment equipment or on the cement stirring device of construction industry for the foregoing reasons.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the side view of the utility model.

Among the figure: 1. support 2. bearing supports 3. rolling bearings 4. inner split rings 5. outer spacer ring 6. floating seals 7. hold down gag I 8. plug screws 9. round nut 10.O RunddichtringO I seal 12. jiaos of sealing gland 13.O RunddichtringO II, 14. stirring shafts, 15. hold down gag II 16.O RunddichtringO III 17.O RunddichtringO IV, 18. mortar box casings for 11. jiaos

Embodiment

Like Fig. 1, shown in Figure 2, a kind of shield equipment is made up of support 1, hold-down mechanism, supporting mechanism and black box with mortar box stirring shaft seal arrangement, and hold-down mechanism comprises hold down gag I7 and hold down gag II15, and hold down gag I7 is provided with plug screw 8.Black box comprises angle sealing 11, angle sealing gland 12, floating seal 6, O RunddichtringO I10, O RunddichtringO II13, O RunddichtringO III16 and O RunddichtringO IV17, and it is nitrile butadiene rubber (NBR) that the angle seals 11 materials; The end plate that support 1 is nested with at the outside of stirring shaft 14 and mortar box casing 18 passes through bolt; Be provided with O RunddichtringO III16 between support 1 and the mortar box casing 18; Angle sealing 11 is fixed on the end face of support 1 near mortar box casing 18 1 sides through angle sealing gland 12, and angle sealing gland 12, angle sealing 11 and support 1 pass through bolt; Inboard and the socket that hold down gag II15 is arranged on support 1 is fixed on the stirring shaft 14; Hold down gag II15 is connected on the shaft shoulder of stirring shaft 14, and the shaft shoulder through stirring shaft 14 carries out axially locating, is provided with O RunddichtringO II13 between the shaft shoulder of hold down gag II15 and stirring shaft 14; Hold down gag II15 is pressed against the angle and seals on the part of 11 protruding brackets, 1 end face; Hold down gag II15 produces axial deflection with angle sealing 11 jack-up vertically, forms sealing configuration; Hold down gag I7 also socket is fixed on the stirring shaft 14; Be provided with O RunddichtringO IV17 between hold down gag I7 and the stirring shaft 14; Be fixed with supporting mechanism between hold down gag II15 and the hold down gag I7, supporting mechanism comprises bearing support 2, rolling bearing 3, inner split ring 4 and outer spacer ring 5, and bearing support 2 comprises main body and is arranged on the stationary platen on the main body; Bearing support 2 is nested with the outside at stirring shaft 14; Stationary platen on the bearing support 2 and support 1 are provided with O RunddichtringO I10 through bolt between stationary platen on the bearing support 2 and the support 1, two rolling bearings 3 are arranged in the main body of bearing support 2; Two rolling bearings 3 socket respectively are fixed on the stirring shaft 14; Separated by inner split ring 4 and outer spacer ring 5 between two rolling bearings 3, two floating seals 6 are separately positioned on the main body two ends of bearing support 2, and hold down gag I7 and hold down gag II15 are pressed to floating seal 6 respectively in the Seal cage of main body two ends and hold down gag I7 and hold down gag II15 formation of bearing support 2; Go back socket on the stirring shaft 14 and be fixed with round nut 9, round nut 9 is fixed on the outside of hold down gag I7, and hold down gag I7 is through round nut 9 axial lockings.The utility model shield equipment is installed with mortar box stirring shaft seal arrangement respectively at stirring shaft 14 two ends, the installation back is good turns on plug screw 8, in Seal cage, injects moderate lubrication oil, after injection finishes plug screw 8 is tightened; Stirring shaft 14 two ends adopt flange to connect, and convenient disassembly is convenient to seal and the maintenance maintenance of bearing.

The above; Be merely the preferable embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technician who is familiar with the present technique field is equal to replacement or changes according to the technological scheme of the utility model and model utility design thereof in the technical scope that the utility model discloses, and all should be encompassed within the protection domain of the utility model.

Claims

1. a shield equipment is with mortar box stirring shaft seal arrangement; Comprise support (1), hold-down mechanism, supporting mechanism and black box; It is characterized in that: said hold-down mechanism comprises hold down gag I (7) and hold down gag II (15), and said hold down gag I (7) is provided with plug screw (8); Said black box comprises angle sealing (11), angle sealing gland (12), floating seal (6), O RunddichtringO I (10), O RunddichtringO II (13), O RunddichtringO III (16) and O RunddichtringO IV (17); Said support (1) is nested with at the end plate of the outside of stirring shaft (14) and mortar box casing (18) and fixes; Be provided with said O RunddichtringO III (16) between said support (1) and the said mortar box casing (18), said angle sealing (11) is fixed on the end face of support (1) near said mortar box casing (18) one sides through said angle sealing gland (12); Inboard and the socket that said hold down gag II (15) is arranged on said support (1) is fixed on the said stirring shaft (14); Be provided with said O RunddichtringO II (13) between said hold down gag II (15) and the said stirring shaft (14), said hold down gag II (15) is pressed on said angle sealing (11) and protrudes on the part of said support (1) end face; Said hold down gag I (7) also socket is fixed on the said stirring shaft (14); Be provided with said O RunddichtringO IV (17) between said hold down gag I (7) and the said stirring shaft (14); Be fixed with supporting mechanism between said hold down gag II (15) and the said hold down gag I (7); Said supporting mechanism comprises bearing support (2), rolling bearing (3), inner split ring (4) and outer spacer ring (5); Said bearing support (2) comprises main body and is arranged on the stationary platen on the main body; Said bearing support (2) is nested with the outside in said stirring shaft (14); Stationary platen on the said bearing support (2) and said support (1) are fixing, are provided with said O RunddichtringO I (10) between stationary platen on the said bearing support (2) and the said support (1), and two said rolling bearings (3) are arranged in the main body of said bearing support (2); Two said rolling bearings (3) socket respectively are fixed on the said stirring shaft (14); Separated by said inner split ring (4) and said outer spacer ring (5) between two said rolling bearings (3), two said floating seals (6) are separately positioned on the main body two ends of said bearing support (2), and said hold down gag I (7) and said hold down gag II (15) are pressed to said floating seal (6) respectively in main body two ends and the said hold down gag I (7) of said bearing support (2) and the Seal cage that said hold down gag II (15) forms; Said stirring shaft (14) is upward gone back socket and is fixed with round nut (9), and said round nut (9) is fixed on the outside of said hold down gag I (7).