JPS5813260A - Packing mounting structure capable of facilitating removal of gland packing - Google Patents

Abstract

PURPOSE:To facilitate replacement of gland packing, by employing such an arrangement that a gland packing replacing member is fitted to the inside of a stuffing box and the gland packing is placed in the gland packing replacing member. CONSTITUTION:A gland packing replacing member 4 fitted to the inside of a stuffing box 3 has at its rear end a flange portion 5 which serves to fix the gland packing replacing member 4 on the inside of the stuffing bod 3 and provides a hold for the operator in detaching the member 4. On the other hand, the top end portion of the gland packing replacing member 4 is projected inwards such that it almost comes into contact with the outer surface of a turning shaft 1, and a recess 9 for incorporating therein gland packing P is formed on the inside of the member 4. Further, a packing retainer 10 is fixed to the rear end of the member 4 in a freely detachable manner.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a banding device using a gland packing, which is essential for preventing ground leakage from rotating parts such as shafts. This invention relates to a new gland packing mounting structure that allows easy removal of the gland packing when it becomes necessary to replace it due to wear.

The present invention is applicable, for example, to a banding device for a rotating part such as the rotating shaft of a winnowing pump shown in Figure 5. is used, which is usually ground z < , 7
Place it in the decorative circle of the Kin PI nut flying box, compress it in the axial direction with the packing presser 21, and press it in the radial direction to attach it to the rotating part. Since it is made of cotton thread, asbestos thread, etc., knitted into a string shape and impregnated with oil pipes, it is prone to wear and requires frequent replacement.At this time, the gland packing packed deep in the stuffing box is strongly compressed. It has the following disadvantages: 1. It deforms when it is removed, and because it is in close contact with the inner wall, it cannot be peeled off, and it requires a very troublesome work such as turning out the tube, and it takes a long time to replace it. This was done in order to solve the conventional drawbacks such as this, and in ToO, there is a circular moat for the gland packing replacement member pipe inside the stuffing box, and the gland packing is stuffed inside this, and when replacing the stuffing box, the gland packing replacement member pipe stuffing is inserted into the stuffing box. It is KL7t so that it can be pulled out from the engine box and the gland packing tube can be taken out instantly at the same time.

Proceeding to the present invention, a detailed description will be given based on the illustrated embodiment of the tube. The drawing shows an enlarged view of the rotating part, where l is the rotating shaft, 2 is the casing, and
A large sealing device tube is constructed to prevent leakage from the gap between the two.
Reference numeral 3 denotes a stuffing box, which has a cylindrical body protruding from the casing 2 in the axial direction of the rotating shaft l and concentrically therewith. The big code 4 is metal acid □ll'l'
It is a gland packing replacement member made of hard synthetic resin or the like, which is fitted into the inner part of the stuffing box 30 and can be freely pulled out from the rear end opening of the stuffing box 3. In the illustrated embodiment, as an example, a cylindrical tube having an outer diameter 1 slightly smaller than the inner diameter of the stuffing box 3 is formed to enable internal fitting, and a flange portion 5 is formed at the rear end.

This item is fixed to the stuffing box 3 with the ground IF replacement parts 4t stuffing box 3 completed! At the same time, it is a large handle for the operator to pull out the Guerand Parkin replacement member 4t, by drilling a plurality of holes 6 as appropriate and attaching and detaching it to the end face of the Pstuffing box 3 using the hole 7. In addition, an appropriate distance 1 is provided between the flange portion 5 and the end face of the stuffing box 3 in advance. Since the helmet and gland packing replacement member 4 is made of a hard material such as metal, care should be taken to prevent leakage between this and the sag poly X3.
A short life. This part is usually sealed by fitting a sealing device (for example, an O-ring) between the stationary surfaces into a hole punched in the appropriate position. The illustrated embodiment is an example of the front face of the gland packing replacement member 4 and the nut wing bo. 8 O-rings are installed between the rubber box 3 and the stuffing box 3 to seal it by pressing from the axial direction.On the other hand, the inside of the gland packing replacement member 40 is attached to the front end S gold rotating shaft l. It extends to about the 12th side and divides the gland packing PO storage recess set, and the packing presser IO is removably attached to the rear end. This one has a 7-tuned WBu tube formed at the rear end of the cylindrical body that can be internally fitted inside the gland packing replacement member 4, and has a large t. It is attached to the rear end surface of the gland packing replacement member 40 with a bolt, and the compression degree of the housed gland packing P can be adjusted by adjusting the screwing condition of the hole 13.

By the way, the present invention is based on the above IM! Example - Although this is an example, it is not limited to this. For example, the gland packing replacement member 4 and J (the gland packing holder 10 has a flange portion of 8% U as an example)? , 13), but this was done using a screw-type cap.
Appropriately known methods can also be used to press and fix the entire tube. *Metaphing? The hand for pulling out the gland packing replacement member 4 housed inside the box 3 is not necessarily provided, but a hole into which a pipe such as a dryer can be inserted may also be provided. Furthermore, in this invention, gland packing replacement ms $ 4
For example, as shown in Figure 3, divide this into two to form a gutter-like IK#4', 4 holes, and in the joint wu have a groove 1j hole 9. Then, the packing 16 is moated here and sealed. t*%As shown in Figure 4, the alignment 1l14 should be made oblique to the normal direction of the cylinder 4? Since the present invention has been completed as described above, I will replace the gland packing at the meeting, and if it is too late, I will loosen it at the meeting and remove the tightening member 4o from the ground packing 1F. It is small because it is inserted into the gap between the gland packing replacement IHt44 7 flange 6 and the nut flying box 3 and pulled out to the rear using the lever action. At this time, the elephant gland packing P is pulled out at the same time by being tightly pressed by 1 m into the storage recess lIe of the gelatin seal replacement member 40, and a total of 11 IL can be pulled out.

As a result, all of the work on both sides, such as sending out the stuffing box (t/xs) from the staffing board (t/xs), will be canceled.
When the hole is large and the gland packing replacement member is divided into 4 parts, it has the advantage that after pulling it out from the metaphor box X3, the gland packing replacement member can be taken out from there.

As detailed above, in this invention, the gland packing replacement member is moated in the circular side of the stuffing box, and the gland is packed inside the hole, so when replacing it,
Take out the Meland packing O, the pole, and the nose. Ki2:”:・、
·worker. Is there anything that can significantly reduce labor? Yes◎

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view showing an embodiment of the present invention, and Figure 4 is an exploded perspective view of another embodiment of the present invention. A cross-sectional view showing the pipe, Figure 5 is a longitudinal cross-sectional view showing the conventional iit * sealing installation * mi''teTo
h〇1:11 Rolling shaft 2: Casing 3: Stuffing yltv tass 4 Nigelland packing replacement 1B# container, U: Flange part 6. Brocade: Hole 7, Brocade: Port 8: O-ring 9: Storage recess
1o: Patchkin presser 14: Meet @ 1
11; Juho: Packing Figure 2 Figure 5 Figure 4 4'

Claims (1)

[Claims] A stuffing box tube is formed in the sealed part between the rotating part and the casing, and the stuffing box tube is stuffed and sealed.
In the m-device, the Gelland packing replacement member is removably fitted inside the Nutaffing 1g box, and this is removably attached to the Stuffing Pocket, and the gland packing is stored inside the Gland packing replacement 115H. A packing mounting structure O that makes it easy to take out the gland packing, which has a 4I feature that divides the recessed part and has a packing holding tube attached to the rear end.