JPH0622665U - Packing holder - Google Patents

Abstract

(57) [Summary] [Purpose] As a gland packing used in hydraulic equipment, not only for leakage adjustment but also for a packing retainer that can securely install new packing. [Structure] The packing presser is composed of a packing presser body 3 to which a pressing pin 5 is attached, and a pressing flange 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a packing retainer for a gland packing that is installed in hydraulic equipment such as a pump.

[0002]

[Prior art]

 As shown in FIG. 5, in a conventional gland packing of a pump or the like, a plurality of packings 52 in a packing box 51 are pressed by a packing presser 53 having an integral structure in order to prevent the main shaft 10 from leaking. The packing retainer 53 was used only to adjust the amount of screwing to adjust the amount of leakage, and when the packing was installed, it was pushed in one by one with a tool or the like. With such a method, it is extremely difficult to securely attach the packing, and it is the actual situation that the leakage is stopped by one or two packings on the atmosphere side, which may shorten the life of the gland packing.

[0003]

[Means for Solving the Problems]

 In order to eliminate the drawbacks of the packing presser of the conventional gland packing, the present invention provides a packing presser including a packing presser body having a presser pin and a pressing flange. .

[0004]

[Action]

 Since the packing presser of this invention has a pin, when replacing the packing, a new packing is pushed inside the packing box by pressing the presser with the pressing flange through the pin. It can be pushed securely into the back of the box.

[0005]

【Example】

 FIG. 1 is a side sectional view of the packing retainer in a state of normal use, and FIG. 2 is a view of the flange as viewed from the R direction, and FIG. 1 corresponds to the AA sectional view of FIG. 10 is a rotary shaft, 1 is a packing box, 2 is a plurality of packings, 3 is a packing pressing body, 4 is a pressing flange, and 5 is a pressing pin attached to the packing pressing body 3. 5 penetrates the hole 45 of the flange 4. Reference numeral 40 denotes a hole through which the rotary shaft 10 passes. A bolt 6 is attached to the packing box and passes through holes 46 at both ends of the flange 4. The bolt 6 and the nut 7 push the pressing flange 4 to the left in the figure, so that the packing pressing body 3 pressed by the flange 4 presses the packing 2. 3 is a side sectional view showing a state where the packing is pushed in, FIG. 4 is a view of the flange 4 seen from the R direction, and FIG. 3 corresponds to a BB section of FIG. When replacing the packing 2, push the new packing 2 into the packing box 1 and insert the packing retainer 3 to the new packing. At that time, the packing pressing body 3 is slightly rotated as compared with the case of FIG. 1, so that the position of the pin 5 is removed from the position of the hole 45 of the flange 4, and the pin 5 is pressed by the flange 4. When the pressing flange 4 is moved to the left in the figure by rotating the nut 7 on the bolt 6, the flange 4 presses the packing pressing body 3 via the pin 5, and a new packing is inserted into the packing box 1. It can be pushed in securely from the back. By repeating the above steps, the new packing can be surely installed in order from the back. When the packing is completely attached, it will return to the state shown in Fig. 1 again, and the packing will be used for leak adjustment.

[0006]

[Effect of device]

 The packing retainer of the present invention has the above-mentioned structure, and in addition to the normal use for adjusting the leakage of the gland packing, when replacing the packing, the new packing can be installed uniformly without using special tools. It can be done reliably.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a state where a packing retainer is in use.

FIG. 2 is a view of the flange viewed from the R direction in FIG.

FIG. 3 is a side cross-sectional view showing a state where the packing is replaced.

FIG. 4 is a view of the flange viewed from the R direction in FIG.

FIG. 5 is a sectional view of an example of a conventional gland packing.

[Explanation of symbols]

 1 Packing Box 2 Packing 3 Packing Presser 4 Pressing Flange 5 Pressing Pin 6 Bolt 7 Nut 10 Rotating Shaft 40 Hole for Rotating Shaft 45 Hole for passing Pin 46 Hole for Bolt 51 Packing Box 52 Packing 53 Packing holder

Claims (1)

[Scope of utility model registration request] 1. A packing presser for a gland packing provided in a shaft sealing portion of hydraulic equipment, wherein the packing presser comprises a packing presser body having a presser pin and a pressing flange.