CN202991594U - Abrasion-resistant pump shaft for water pump - Google Patents

Abrasion-resistant pump shaft for water pump Download PDF

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Publication number
CN202991594U
CN202991594U CN 201220632400 CN201220632400U CN202991594U CN 202991594 U CN202991594 U CN 202991594U CN 201220632400 CN201220632400 CN 201220632400 CN 201220632400 U CN201220632400 U CN 201220632400U CN 202991594 U CN202991594 U CN 202991594U
Authority
CN
China
Prior art keywords
pump shaft
shaft
pump
abrasion
resistant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220632400
Other languages
Chinese (zh)
Inventor
刘和明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MINGGUANG CITY LIUXIANG PUMP INDUSTRY Co Ltd
Original Assignee
MINGGUANG CITY LIUXIANG PUMP INDUSTRY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MINGGUANG CITY LIUXIANG PUMP INDUSTRY Co Ltd filed Critical MINGGUANG CITY LIUXIANG PUMP INDUSTRY Co Ltd
Priority to CN 201220632400 priority Critical patent/CN202991594U/en
Application granted granted Critical
Publication of CN202991594U publication Critical patent/CN202991594U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an abrasion-resistant pump shaft for a water pump. The abrasion-resistant pump shaft for a water pump comprises a stair-shaped pump shaft body, wherein the pump shaft is provided with an abrasion-resistant step matching with a shaft sleeve; the shaft neck section of the pump shaft is provided with a screw thread matching with a throttling bush; and the screw thread is a single-head or multi-head screw thread having the rotation direction opposite to that of the pump shaft. The abrasion-resistant pump shaft has a simple structure and long service life, efficiently improves abrasion resistance of the pump shaft efficiently as the design in which an abrasion-resistant step is arranged on the pump shaft and a chromium ion layer is plated on the surface of the pump shaft is adopted, and enables a gap between the pump shaft and the throttling bush to be filled with a medium when the pump shaft is in operation, further reduces a pressing force applied to a sealing padding and guarantees the sealing effect as the design of setting the screw thread at the shaft neck section is adopted.

Description

A kind of water pump wear-resisting type pump shaft
Technical field
The utility model relates to the water pump field, is specially a kind of water pump wear-resisting type pump shaft.
Background technique
Water pump generally is comprised of motor, the pump housing and impeller etc., and impeller is driven by pump shaft and rotates, and completes the water delivery operation, has wide range of applications.Pump shaft stretches in the pump housing by the gland on the pump housing, adds filler, mechanical seal etc. between pump shaft and gland and consists of sealing configuration, guarantees the relative negative pressure in the pump housing.Because the rotational speed of pump shaft is higher, and there is frictional force between the contact component such as axle sleeve, after long-time the use, can be formed with certain eroded area on pump shaft, cause shorten working life, affect sealability, and then affect the normal operation of water pump.
The model utility content
The purpose of this utility model is to provide a kind of water pump wear-resisting type pump shaft, to solve pump shaft traditional in prior art because rotational speed is higher, and there is frictional force between the contact components such as axle sleeve, after long-time the use, can be formed with certain eroded area on pump shaft, cause shorten working life, affect sealability, and then affect the problem of the normal operation of water pump.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of water pump wear-resisting type pump shaft, it is characterized in that: include a stepped shaft pump shaft body, described pump shaft is provided with the wear-resisting step that coordinates with axle sleeve, and the axle journal section of described pump shaft is provided with the screw thread that coordinates with nockbush, and described screw thread is single head or the multiple thread opposite with the pump shaft sense of rotation.
Described a kind of water pump wear-resisting type pump shaft is characterized in that: described pump shaft surface is coated with the chromium ion layer.
The beneficial effects of the utility model are:
The utility model is simple in structure, long service life, employing arranges wear-resisting step on pump shaft, and in the design of pump shaft chrome-faced sheath, effectively promoted the wear-resisting property of pump shaft, adopted the design that screw thread is set in the axle journal section, can make the gap between pump shaft and nockbush be full of medium during the pump shaft running, and then reduce the pressure that is applied to stuffing box packing, guaranteed sealing effect.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of water pump wear-resisting type pump shaft includes stepped shaft pump shaft 1 body, and pump shaft 1 is provided with the wear-resisting step 2 that coordinates with axle sleeve, the axle journal section of pump shaft 1 is provided with the screw thread 3 that coordinates with nockbush, and screw thread 3 is single head or the multiple thread opposite with pump shaft 1 sense of rotation.Pump shaft 1 surface is coated with the chromium ion layer.

Claims (2)

1. water pump wear-resisting type pump shaft, it is characterized in that: include a stepped shaft pump shaft body, described pump shaft is provided with the wear-resisting step that coordinates with axle sleeve, the axle journal section of described pump shaft is provided with the screw thread that coordinates with nockbush, and described screw thread is single head or the multiple thread opposite with the pump shaft sense of rotation.
2. a kind of water pump wear-resisting type pump shaft according to claim 1 is characterized in that: described pump shaft surface is coated with the chromium ion layer.
CN 201220632400 2012-11-26 2012-11-26 Abrasion-resistant pump shaft for water pump Expired - Fee Related CN202991594U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220632400 CN202991594U (en) 2012-11-26 2012-11-26 Abrasion-resistant pump shaft for water pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220632400 CN202991594U (en) 2012-11-26 2012-11-26 Abrasion-resistant pump shaft for water pump

Publications (1)

Publication Number Publication Date
CN202991594U true CN202991594U (en) 2013-06-12

Family

ID=48562778

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220632400 Expired - Fee Related CN202991594U (en) 2012-11-26 2012-11-26 Abrasion-resistant pump shaft for water pump

Country Status (1)

Country Link
CN (1) CN202991594U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130612

Termination date: 20151126