CN111536070A

CN111536070A - Stove water pump oiling structure

Info

Publication number: CN111536070A
Application number: CN201911331737.0A
Authority: CN
Inventors: 徐成; 姚荣祥; 周巧霞; 陈林
Original assignee: Hefei Wanhua Electric Pump Co ltd
Current assignee: Hefei Wanhua Electric Pump Co ltd
Priority date: 2019-12-21
Filing date: 2019-12-21
Publication date: 2020-08-14

Abstract

A furnace water pump oil injection structure. The oil injection pump is fixed on a box body through screws, a lever is pushed to swing around a supporting pin by rotation of a camshaft, the oil injection pumps are fixed on the top plane of the oil tank in an arrayed mode, each oil injection pump works under the drive of a cam on an inner camshaft of the box, and the transmission part drives the camshaft to rotate through secondary transmission of a speed reducer below the motor. The invention simplifies the oiling operation and improves the user experience.

Description

Stove water pump oiling structure

Technical Field

The invention relates to the technical field of furnace water pumps, in particular to a furnace water pump oil injection structure.

Background

The boiler water circulating pump is a large-flow, low-lift single-stage centrifugal pump which is arranged in a boiler evaporation system and bears high temperature and high pressure to make working media perform forced flow, and structurally comprises a pump shell, pump blades, a bearing and a heat insulator. Boiler water circulation pumps are commonly used in start-up systems for forced circulation drum boilers and once-through boilers. A pump housing and an impeller. The pump casing is a hemispherical structure, and is characterized by that its wall thickness is small, its correspondent thermal stress is small, and the pump blade is a high-specific revolution centrifugal type, close to mixed flow type single-stage centrifugal pump, and the outlet of pump blade is equipped with pump blade to make partial kinetic energy be converted into pressure energy.

Current oiling device uses oiling device to pour into oil into in the atomizer when opening the atomizer, then covers the atomizer again, and present oiling device and unable direct intercommunication of atomizer lead to the oiling device to need open the atomizer to atomizer injection oil to complex operation leads to user experience not high, leaks the outside with oil easily.

Disclosure of Invention

Aiming at the problems in the related art, the invention provides a furnace water pump oil injection structure, the piston is connected with the inner wall of the piston oil cylinder in a sliding manner, two ends of the oil inlet pipe are respectively used for communicating a tobacco tar bottle and the piston oil cylinder, the upper cover or the lower cover of an atomizer is not required to be opened, and oil is directly injected into the atomizer through an oil inlet hole, so that the oil injection operation is simplified, and the user experience is improved.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a furnace water pump oiling structure, which adopts the following scheme:

the oil injection pump is fixed on a box body through screws, a lever is pushed to swing around a supporting pin by rotation of a camshaft, the oil injection pumps are fixed on the top plane of the oil tank in an arrayed mode, each oil injection pump works under the drive of a cam on an inner camshaft of the box, and the transmission part drives the camshaft to rotate through secondary transmission of a speed reducer below the motor.

The invention has the beneficial effects that:

the invention simplifies the oiling operation and improves the user experience.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

According to the embodiment of the invention, a furnace water pump oiling structure is provided, and the scheme is as follows:

1. oil filling pump

The oil filling pump is the main part of the oil injector, each oil filling pump is fixed on the box body by a screw, the lever is pushed by the rotation of the cam shaft to swing around the bearing pin, and when the eccentricity of the cam is gradually reduced, the plunger moves downwards under the action of the spring, so that vacuum is formed in the plunger sleeve of the pump body. The oil is sucked from the oil suction pipe under the action of atmospheric pressure, the sucked oil enters the oil dripping pipe through the oil inlet pipeline in the pump body, the interior of the oil observing cover is also in a vacuum state, the oil is sucked from the oil dripping pipe through the vacuum state, the sucked oil enters the pump body again through the small hole in the oil observing cover, and a closed passage is formed in the oil observing cover. When the eccentricity is gradually increased, the plunger moves upwards to discharge the lubricating oil to each lubricating point through the oil injection valve. The required number of oil filling pumps can be arranged on the tank according to the number of lubrication points of a user.

According to the difference of the plunger diameter and the plunger stroke, the method comprises the following steps: medium pressure (16MPa), high pressure (32MPa) and ultrahigh pressure (40, 63 and 100 MPa). The oil filling pump, the corresponding oil tank and the transmission part can be combined into three types of oil injectors of medium pressure, high pressure and ultrahigh pressure.

2. Oil tank

The oil tank is a part for storing lubricating oil, installing an oil filling pump and supporting a camshaft. Usually, one or two oil tanks (one single connection and two double connections) are provided, the oil injection pumps are arranged and fixed on the top plane of the oil tanks, and the work of each oil injection pump is driven by a cam on an inner cam shaft of the tank. The camshaft is composed of different numbers of cams according to different product specifications (namely different lubrication points), and the camshaft is driven by the transmission part to work.

3. Transmission part

The transmission part of the oil injector has two main types: i. Driven by the host; II, independent transmission.

I. The oil injector driven by the main machine has three standard types:

(1) type ZL: coupling type, operated by a main machine driven by an overrunning clutch coupling

(2) Type ZB: of the pendulum-rod type, the pendulum-rod being driven by a main machine to operate

(3) Type ZJ: the key connection type cam shaft has flat keys at the head and is directly driven by a host machine to work.

II. The oil injector with single transmission is of ZD type:

the motor drives the cam shaft to rotate through the two-stage transmission of a speed reducer (a worm and a worm gear for speed reduction and a small and large gear for speed reduction) below. If the double-connection oil ejector is used, a coupling is arranged between the cam shafts of the two oil tanks to drive the two cam shafts to synchronously rotate, so that the two oil injection pumps above the two oil tanks synchronously operate, and the crank on the side surface of the oil tank is only used when manual operation is needed.

Use and maintenance

1. The working medium of the oil ejector is lubricating oil with the kinematic viscosity of 7-40 CST at 50 ℃, and the impurity particles contained in the working medium are not larger than 0.025 mm.

2. When the oil is added into the oil tank, the oil filter screen in the oil adding port is needed to pass through.

3. The size of the oil injection amount can be adjusted by the adjusting screw sleeve, and the oil injection amount is increased by rotating the adjusting screw sleeve anticlockwise. And the oil injection amount is reduced by clockwise rotation, the minimum oil injection amount can be reduced to zero, and the locking nut is locked after adjustment.

4. Before the oil delivery pipe is connected with the oil injection point of the main machine, lubricating oil is added to the highest oil level position of the oil tank, the oil pump is adjusted to the maximum oil quantity position, the oil ejector is started or the handle is shaken or the knob is pressed one by one, when oil continuously drips out from the oil dripping pipe, after the oil delivery pipe is filled with the lubricating oil, the oil delivery pipe can be connected with the oil injection point of the main machine to start working.

5. When the oil level of the oil in the oil tank is reduced, the oil should be added in time.

6. The oil inspection cover is not required to be detached at will, so that the oil absorption is prevented from being influenced by leakage.

7. When the oil dripping pipe does not drip oil, the pump body can be taken out and disassembled to be cleaned by clean kerosene, and the check valve of the check valve body of the oil pump and the check oil circuit are overhauled to check whether leakage exists or not.

8. When the oil is not discharged from the outlet, the tightness of the check valve and the matching surface of the oil filling valve can be checked, whether the oil path is leaked or not can be checked, or the oil filling pressure is reduced or the oil is not discharged due to the fact that the abrasion clearance between the plunger and the plunger sleeve is increased.

9. The lubricator should be periodically cleaned with clean kerosene to remove impurities and dirt from the lubricator and the tank, and the lubricator should be cleaned at intervals of one month in a continuous working state.

Special attention is paid to:

(1) the speed reducer should be started after refueling, and the lubricating oil in the speed reducer should be cleaned and replaced once a month.

(2) The oil level of the oil feeder tank cannot be lower than the bottom of the cam, and the oil should be added in time when the oil level is lower than the bottom of the cam. Otherwise, the service life of the oil ejector and the camshaft is influenced.

(3) If the oil filler is not used temporarily, the oil filling amount is adjusted to zero or the anti-rust oil is removed for sealing.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The furnace water pump oil injection structure is characterized by comprising an oil injection pump, an oil tank and a transmission part, wherein the oil injection pump is fixed on a tank body through screws, a lever is pushed to swing around a supporting pin by the rotation of a cam shaft, the oil injection pumps are arranged and fixed on the top plane of the oil tank, the work of each oil injection pump is driven by a cam on the cam shaft in the tank, and the transmission part drives the cam shaft to rotate through the secondary transmission of a speed reducer below by a motor.