CN219466069U - Special tool for installing water pump oil seal - Google Patents

Special tool for installing water pump oil seal Download PDF

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Publication number
CN219466069U
CN219466069U CN202320134795.XU CN202320134795U CN219466069U CN 219466069 U CN219466069 U CN 219466069U CN 202320134795 U CN202320134795 U CN 202320134795U CN 219466069 U CN219466069 U CN 219466069U
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China
Prior art keywords
oil seal
screw rod
adjusting plate
guide rod
central guide
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CN202320134795.XU
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Chinese (zh)
Inventor
梁琼
刘海常
董志国
宋鹏
杜川
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Liaoning Hongyanhe Nuclear Power Co Ltd
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Liaoning Hongyanhe Nuclear Power Co Ltd
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Priority to CN202320134795.XU priority Critical patent/CN219466069U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

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  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The utility model provides a special tool for installing a water pump oil seal, which comprises a hollow heavy hammer, a central guide rod, a screw rod spacing adjusting plate and a plurality of screw rods, wherein the hollow heavy hammer is arranged on the central guide rod; the center of the screw rod interval adjusting plate is provided with a mounting hole, and a plurality of groups of array holes are arranged around the mounting hole; the central guide rod is fixed in the mounting hole, and a limiting block is arranged at the far end of the central guide rod; the hollow heavy hammer is sleeved on the outer surface of the central guide rod and moves relatively to the axial direction between the limiting block and the screw rod interval adjusting plate; after each screw rod passes through a through hole of the screw rod spacing adjusting plate and is fixed with the screw rod spacing adjusting plate, the far end of each screw rod is propped against the oil seal through a buffer part; when the hollow heavy hammer acts on the screw rod interval adjusting plate, all screw rods are driven to synchronously strike the surface of the oil seal, so that the oil seal is stressed and moves to the position to be installed in a balanced manner. By implementing the utility model, the four corners of the oil seal can be ensured to be stressed uniformly to finish installation, and the unexpected damage of the oil seal is avoided.

Description

Special tool for installing water pump oil seal
Technical Field
The utility model relates to the technical field of oil seal installation, in particular to a special tool for water pump oil seal installation.
Background
At present, when the oil seal is reinstalled in the water pump maintenance process, a double symmetrical knocking installation method is often adopted. However, when the knocking time of two persons is not synchronous or the knocking force is inconsistent, the installation method is easy to cause the risks of oil seal deflection, jamming and abrasion deformation, particularly the phenomena of extrusion injury or crush injury and the like caused by uneven stress of the O-shaped rubber ring in the oil seal are difficult to discover, and once the oil seal is started, the oil seal is in leakage risk, so that larger economic loss is caused.
Therefore, to the above problems, it is necessary to develop a portable oil seal installation special tool adjustable within a certain size range, which can ensure that four corners of the oil seal are stressed uniformly to complete the installation, and is beneficial to controlling the deflection angle and knocking force in the installation process of the oil seal, so as to avoid accidental damage of the oil seal.
Disclosure of Invention
The technical problem to be solved by the embodiment of the utility model is to provide a special tool for installing the water pump oil seal, which can ensure that four corners of the oil seal are stressed uniformly to finish the installation, is favorable for controlling the deflection angle and the knocking force in the installation process of the oil seal, and avoids the accidental damage of the oil seal.
In order to solve the technical problems, the embodiment of the utility model provides a special tool for installing a water pump oil seal, which comprises a hollow heavy hammer, a center guide rod, a screw rod spacing adjusting plate and a plurality of screw rods; wherein,,
the center of the screw rod interval adjusting plate is provided with a mounting hole for mounting the center guide rod, and a plurality of groups of array holes are formed around the mounting hole; wherein each group of array holes consists of a plurality of through holes;
the central guide rod is fixed in the mounting hole, and one end of the central guide rod, which is far away from the mounting hole, is provided with a limiting block;
the hollow heavy hammer is sleeved on the outer surface of the central guide rod and axially moves between the limiting block and the screw rod interval adjusting plate relative to the central guide rod;
after each screw rod passes through a corresponding through hole of the screw rod spacing adjusting plate and is fixed with the screw rod spacing adjusting plate, one end of the screw rod, which is far away from the hollow heavy hammer, is propped against the oil seal through a buffer part;
when the hollow heavy hammer is driven by external force to act on the screw rod interval adjusting plate, the screw rod interval adjusting plate drives all screw rods to synchronously strike the surface of the oil seal, so that the oil seal is stressed and moves to the position to be installed in a balanced manner.
Wherein the plurality of groups of array holes are three groups or four groups; wherein,,
the spacing angles between every two adjacent array holes in the three groups of array holes or the four groups of array holes are the same, and the array holes in each group are provided with the same number of through holes according to a preset distribution rule.
Wherein the mounting hole is a blind hole; the inner side wall of the blind hole is provided with an inner thread, and the inner side wall of the blind hole is in threaded connection with an outer thread arranged on the outer surface of one end of the central guide rod, which faces the blind hole, so that the central guide rod is fixed in the blind hole.
Each screw rod is a threaded rod and is fixed with the screw rod interval adjusting plate through two fastening nuts; the two fastening nuts are respectively positioned on two opposite sides of the screw rod interval adjusting plate.
The length of each screw rod reserved between the screw rod interval adjusting plate and the oil seal is equal.
Wherein each buffer part is a nylon buffer sleeve.
Each nylon cushioning sleeve is fixed on the corresponding screw rod in a threaded connection mode.
The embodiment of the utility model has the following beneficial effects:
when the hollow heavy hammer is driven by external force to act on the screw rod interval adjusting plate, the screw rod interval adjusting plate drives all screw rods to synchronously strike the surface of the oil seal, so that the oil seal is stressed and uniformly moves to the position to be installed, the four corners of the oil seal can be ensured to be stressed and uniformly installed, the deflection angle and the striking force in the installation process of the oil seal can be controlled, and the unexpected damage of the oil seal can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.
FIG. 1 is an assembly diagram of a special tool and an oil seal for installing a water pump oil seal according to an embodiment of the present utility model;
FIG. 2 is a left side view of the lead screw spacing adjustment plate of FIG. 1;
fig. 3 is a left side view of the oil seal of fig. 1.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.
Referring to fig. 1, in an embodiment of the present utility model, a special tool for installing a water pump oil seal is provided, including a hollow weight 1, a center guide rod 2, a screw pitch adjusting plate 3, and a plurality of screws 4; wherein,,
the screw rod interval adjusting plate 3 is made of channel steel, a mounting hole 31 for mounting the central guide rod 2 is formed in the center of the channel steel, and a plurality of groups of array holes A are formed in the periphery of the mounting hole 31; wherein each set of array holes a is made up of a plurality of through holes 32; in one example, the mounting hole 31 is a blind hole, and the inner side wall of the blind hole is provided with an internal thread;
the central guide rod 2 is made of stainless steel, is fixed in the mounting hole 31 in a mode that external threads arranged on the outer surface of one end of the central guide rod facing the mounting hole 31 (namely, a blind hole) are in threaded connection with internal threads in the mounting hole 31, and a limiting block 7 is arranged at one end of the central guide rod 2 far away from the mounting hole 31;
the hollow heavy hammer 1 is made of heavy steel, is sleeved on the outer surface of the central guide rod 2, and axially moves between the limiting block 7 and the screw rod interval adjusting plate 3 relative to the central guide rod 2; it can be understood that the diameter of the limiting block 7 is larger than the diameter of the axial through hole of the hollow weight 1, so that the hollow weight 1 cannot slide out of the central guide rod 2;
each screw rod 4 is a threaded solid rod made of stainless steel, and after each screw rod 4 passes through a corresponding through hole 32 of the screw rod spacing adjusting plate 3 and is fixed with the screw rod spacing adjusting plate 32 through two fastening nuts 5, one end of the screw rod 4 far away from the hollow heavy hammer 1 is pressed against the oil seal T through a buffer part 6 (such as a nylon shock absorbing sleeve which is fixed on the corresponding screw rod 4 through a threaded connection manner); the two fastening nuts 5 adopted by the same screw rod 4 are respectively positioned on two opposite sides of the screw rod spacing adjusting plate 3, at the moment, the two fastening nuts 5 are screwed on the outer surface of the same screw rod 4 in a threaded mode and are screwed relatively to fix the screw rod 4 on the screw rod spacing adjusting plate 3, and the reserved length of each screw rod 4 between the screw rod spacing adjusting plate 3 and the oil seal T is equal, so that the screw rod spacing adjusting plate 3 and the oil seal T are parallel, and the stress of the screw rod spacing adjusting plate 3 can be synchronously transmitted to the oil seal T; it should be noted that the oil seal T is already sleeved on the pump shaft M to be installed;
when the hollow weight 1 is driven by an external force to act on the screw pitch adjusting plate 3, all screws 4 are driven by the screw pitch adjusting plate 3 to synchronously strike the surface of the oil seal T, so that the oil seal T is stressed and moves to a position to be installed (not shown).
In one example, the plurality of groups of array holes a have three groups, the spacing angles between every two adjacent groups of the three groups of array holes a are the same (for example, 60 degrees apart), and each group of array holes a is provided with an equal number of through holes 32 according to a predetermined distribution rule (for example, a mode of sequentially increasing a fixed number of through holes in a direction away from the mounting hole 31).
In another example, the plurality of groups of array holes a have four groups, the spacing angles between every two adjacent groups of the four groups of array holes a are the same (e.g., 45 degrees apart), and each group of array holes a is provided with an equal number of through holes 32 according to the predetermined distribution rule, as shown in fig. 2. In fig. 2, a through hole 32 to which the screw 4 is not fixed is shown, and +.a through hole 32 to which the screw 4 is passed and fixed is shown.
At this time, +. ∈ in fig. 3 shows the corresponding position where the screw 4 is pressed against the oil seal T.
The application steps of the special tool for installing the water pump oil seal provided by the embodiment of the utility model are as follows:
the first stage: firstly, measuring the diameter size of an oil seal to be installed and the relative distance between the final installation position of the oil seal and the end face of a pump shaft; then, the installation positions of the screw rods 4 are selected on the screw rod interval adjusting plate 3 according to the symmetrical and uniform distribution of the drawing, and the reserved length of the screw rods 4 is determined; then, all the screw rods 4 are determined to be on a flat surface, and the lengths of all the screw rods 4 are finely adjusted through the nylon cushioning sleeve 6, so that the four feet are ensured to be in the same plane as much as possible.
And a second stage: when the oil seal is installed, two persons hold the screw rods 4 simultaneously, observe the contact state of four feet and whether the oil seal is inclined, tap the screw rod spacing adjusting plate 3 by using the hollow heavy hammer 1, drive all the screw rods 4 to synchronously strike the surface of the oil seal by the screw rod spacing adjusting plate 3, so that the oil seal is slowly and gradually installed to the final position to be installed.
The embodiment of the utility model has the following beneficial effects:
when the hollow heavy hammer is driven by external force to act on the screw rod interval adjusting plate, the screw rod interval adjusting plate drives all screw rods to synchronously strike the surface of the oil seal, so that the oil seal is stressed and uniformly moves to the position to be installed, the four corners of the oil seal can be ensured to be stressed and uniformly installed, the deflection angle and the striking force in the installation process of the oil seal can be controlled, and the unexpected damage of the oil seal can be avoided.
The above disclosure is only a preferred embodiment of the present utility model, and it is needless to say that the scope of the utility model is not limited thereto, and therefore, the equivalent changes according to the claims of the present utility model still fall within the scope of the present utility model.

Claims (7)

1. The special tool for installing the water pump oil seal is characterized by comprising a hollow heavy hammer, a central guide rod, a screw rod spacing adjusting plate and a plurality of screw rods; wherein,,
the center of the screw rod interval adjusting plate is provided with a mounting hole for mounting the center guide rod, and a plurality of groups of array holes are formed around the mounting hole; wherein each group of array holes consists of a plurality of through holes;
the central guide rod is fixed in the mounting hole, and one end of the central guide rod, which is far away from the mounting hole, is provided with a limiting block;
the hollow heavy hammer is sleeved on the outer surface of the central guide rod and axially moves between the limiting block and the screw rod interval adjusting plate relative to the central guide rod;
after each screw rod passes through a corresponding through hole of the screw rod spacing adjusting plate and is fixed with the screw rod spacing adjusting plate, one end of the screw rod, which is far away from the hollow heavy hammer, is propped against the oil seal through a buffer part;
when the hollow heavy hammer is driven by external force to act on the screw rod interval adjusting plate, the screw rod interval adjusting plate drives all screw rods to synchronously strike the surface of the oil seal, so that the oil seal is stressed and moves to the position to be installed in a balanced manner.
2. The special tool for installing a water pump oil seal according to claim 1, wherein the plurality of groups of array holes are three groups or four groups; wherein,,
the spacing angles between every two adjacent array holes in the three groups of array holes or the four groups of array holes are the same, and the array holes in each group are provided with the same number of through holes according to a preset distribution rule.
3. The special tool for installing a water pump oil seal according to claim 2, wherein the installation hole is a blind hole; the inner side wall of the blind hole is provided with an inner thread, and the inner side wall of the blind hole is in threaded connection with an outer thread arranged on the outer surface of one end of the central guide rod, which faces the blind hole, so that the central guide rod is fixed in the blind hole.
4. A special tool for installing a water pump oil seal as claimed in claim 3, wherein each screw is a threaded rod and is fixed with the screw pitch adjusting plate by two fastening nuts; the two fastening nuts are respectively positioned on two opposite sides of the screw rod interval adjusting plate.
5. The special tool for installing a water pump oil seal according to claim 4, wherein the reserved length of each screw rod between the screw rod spacing adjustment plate and the oil seal is equal.
6. The special tool for installing a water pump oil seal of claim 5, wherein each buffer component is a nylon buffer sleeve.
7. The special tool for installing a water pump oil seal according to claim 6, wherein each nylon damping sleeve is fixed on the corresponding screw rod in a threaded connection mode.
CN202320134795.XU 2023-02-06 2023-02-06 Special tool for installing water pump oil seal Active CN219466069U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320134795.XU CN219466069U (en) 2023-02-06 2023-02-06 Special tool for installing water pump oil seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320134795.XU CN219466069U (en) 2023-02-06 2023-02-06 Special tool for installing water pump oil seal

Publications (1)

Publication Number Publication Date
CN219466069U true CN219466069U (en) 2023-08-04

Family

ID=87442148

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320134795.XU Active CN219466069U (en) 2023-02-06 2023-02-06 Special tool for installing water pump oil seal

Country Status (1)

Country Link
CN (1) CN219466069U (en)

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