Self-lubricating centrifugal pump

Abstract

The utility model discloses a self-lubricating centrifugal pump, which belongs to the technical field of centrifugal pump lubrication and comprises a base, a pump body, an oil injection mechanism and a heating mechanism. The pump body, the heating mechanism and the oil injection mechanism are all arranged at the top of the base, an oil injection port is formed in the outer wall of the pump body, and one end of the oil injection port is fixedly connected with an electromagnetic valve; the oil injection mechanism comprises an oil storage bottle, a screw cap in threaded connection with one end of the oil storage bottle, a servo electric cylinder fixed to the top of the screw cap and a piston plate in transmission connection with one end of a driving shaft of the servo electric cylinder, a guide-out pipe is fixed to the outer wall of the oil storage bottle, and oil is supplied to an oil injection opening through the guide-out pipe. The servo electric cylinder of the oil injection mechanism is matched with the electromagnetic valve, lubricating oil can be automatically injected to the pump body on time, the maintenance process is convenient, and the manual burden is reduced.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump lubrication technology, specifically a self-lubricating centrifugal pump. Background Technology

[0002] A centrifugal pump is a device that works by using the rotation of an impeller to cause water to move at a centrifugal speed. It generally consists of a water pump and a motor. The motor drives the impeller and water inside the pump shaft to rotate at high speed, causing the water to move at a centrifugal speed and be thrown towards the outer edge of the impeller. The water then flows into the pump's discharge pipe through the flow channel of the volute casing.

[0003] Centrifugal pumps tend to dry out and become difficult to rotate over time during use, requiring frequent addition of lubricant. Therefore, the design includes a lubricant filler port for lubrication and maintenance.

[0004] Currently, when adding lubricating oil through the pre-installed oil inlet of a centrifugal pump, it is still necessary for staff to manually open and close the oil inlet before adding the lubricating oil, which is inconvenient and increases the manual burden.

[0005] Based on this, the present invention designs a self-lubricating centrifugal pump to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a self-lubricating centrifugal pump to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a self-lubricating centrifugal pump, comprising: a base, a pump body, an oil injection mechanism, and a heating mechanism; the pump body, the heating mechanism, and the oil injection mechanism are all disposed on the top of the base, and an oil injection port is provided on the outer wall of the pump body, with a solenoid valve fixedly connected to one end of the oil injection port;

[0008] The oil filling mechanism includes an oil storage bottle, a screw cap threaded to one end of the oil storage bottle, a servo electric cylinder fixed to the top of the screw cap, and a piston plate driven to one end of the drive shaft of the servo electric cylinder. An outlet pipe is fixed to the outer wall of the oil storage bottle, and oil is supplied to the oil filling port through the outlet pipe.

[0009] The heating mechanism includes a heating base, on which the oil storage bottle is mounted and heated.

[0010] Preferably, a heat-conducting plate is fixed to one end of the oil storage bottle, and a threaded groove is opened at one end of the heating base, with an electric heating plate fixed in the threaded groove of the heating base.

[0011] Preferably, one end of the oil storage bottle is threaded into the threaded groove of the heating base, and the heat-conducting plate is in contact with the heating plate of the heating base.

[0012] Preferably, the outlet pipe is fixed with an oil delivery hose between one end and the inlet end of the electromagnetic valve.

[0013] Preferably, the pump body and the heating seat of the heating mechanism are fixedly connected to the base.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] Firstly, the specific operation time value is set through the servo electric cylinder of the oil injection mechanism and the electromagnetic valve, so that the lubricating oil injection operation is accurately time controlled, and the lubricating oil can be automatically injected into the pump body on time, the maintenance process is convenient and the labor burden is reduced.

[0016] Secondly, in cold weather, the heating mechanism can transfer heat to the lubricating oil in the oil storage bottle to heat the lubricating oil, improve the flowability of the lubricating oil, reduce the viscosity, and ensure normal conveying and use. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 It is the overall structure schematic view of the embodiment;

[0019] Figure 2 It is the highlighting base mounting structure schematic view of the embodiment;

[0020] Figure 3 It is the highlighting oil injection mechanism schematic view of the embodiment;

[0021] Figure 4 It is the highlighting heating seat structure schematic view of the embodiment;

[0022] Figure 5 It is the highlighting oil storage bottle structure schematic view of the embodiment.

[0023] In the drawings, the component list represented by each sign is as follows:

[0024] 1, base;2, pump body;3, oil injection port;4, electromagnetic valve;5, heating seat;6, oil storage bottle;7, cap;8, servo electric cylinder;9, piston plate;10, electric heating plate;11, heat conduction plate;12, oil delivery hose. DETAILED DESCRIPTION

[0025] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0026] Please refer to Figures 1-5 The present application provides a technical scheme: a self-lubricating centrifugal pump, comprising: a base 1, a pump body 2, an oil injection mechanism and a heating mechanism; the pump body 2, the heating mechanism and the oil injection mechanism are all arranged on the top of the base 1, the outer wall of the pump body 2 is provided with an oil injection port 3, and one end of the oil injection port 3 is fixedly connected with an electromagnetic valve 4;

[0027] The oil injection mechanism comprises an oil storage bottle 6, a screw cap 7 threadedly connected to one end of the oil storage bottle 6, a servo cylinder 8 fixed to the top of the screw cap 7, and a piston plate 9 drivingly connected to one end of the driving shaft of the servo cylinder 8, and the outer wall of the oil storage bottle 6 is fixedly provided with a discharge pipe for supplying oil to the oil injection port 3;

[0028] The heating mechanism comprises a heating seat 5, and the oil storage bottle 6 is installed on the heating seat 5 and heated by the heating seat 5;

[0029] The pre-set oil injection port 3 of the pump body 2 ensures the injection of lubricating oil, the threaded connection between the open end of the oil storage bottle 6 and the screw cap 7 enables the lubricating oil to be stored in the oil storage bottle 6 after the screw cap 7 is removed, and the installation of the screw cap 7 enables the piston plate 9 to be simultaneously installed in the oil storage bottle 6, and the servo cylinder 8 and the electromagnetic valve 4 can be set to specific operation time values, so that the injection of lubricating oil can be accurately controlled in time, and the injection of lubricating oil can also be performed at intervals to meet more operation needs, and the heating mechanism uses the heating seat 5 to install the oil storage bottle 6, so that the pre-stored lubricating oil can be normally used in cold weather.

[0030] Further preferably, one end of the oil storage bottle 6 is fixedly provided with a heat-conducting plate 11, and one end of the heating seat 5 is provided with a threaded groove, and an electric heating plate 10 is fixed in the threaded groove of the heating seat 5;

[0031] The heat-conducting plate 11 installed at one end of the oil storage bottle 6 directly extends into the oil storage bottle 6 and can directly contact the lubricating oil in the oil storage bottle 6, and the heat-conducting plate 11 is made of copper and has good heat conductivity, so that the heat from the electric heating plate 10 can be transferred to the contacted lubricating oil.

[0032] Further preferably, one end of the oil storage bottle 6 is threadedly connected to the threaded groove of the heating seat 5, and the heat-conducting plate 11 is in contact with the electric heating plate 10 of the heating seat 5;

[0033] The bottom end of the oil storage bottle 6 is also threaded, which can be disassembled with the threaded groove of the heating seat 5, facilitating replacement, cleaning and maintenance, etc.

[0034] Further preferably, the oil delivery hose 12 is fixed between one end of the delivery pipe and the inlet end of the electromagnetic valve 4.

[0035] The lubricating oil output by the delivery pipe is guided to the electromagnetic valve 4 through the oil delivery hose 12 and is controlled to be injected towards the oil injection port 3 through the electromagnetic valve 4.

[0036] Further preferably, the pump body 2 and the heating seat 5 of the heating mechanism are both fixedly connected to the base 1.

[0037] The pump body 2 is fixed to the base 1 for operation, and the heating seat 5 is fixed to the base 1 to facilitate quick disassembly of the oil storage bottle 6.

[0038] One specific application of the embodiment is that when it is necessary to inject lubricating oil through the oil injection port 3 of the pump body 2, the electromagnetic valve 4 of the oil injection port 3 of the pump body 2 is opened, the driving end of the servo cylinder 8 controls the piston plate 9 to move downward by a predetermined distance in the oil storage bottle 6, and the piston plate 9 pushes part of the pre-stored lubricating oil in the oil storage bottle 6 to be discharged to the oil delivery hose 12 through the delivery pipe, the lubricating oil delivered by the oil delivery hose 12 is injected into the pump body 2 through the oil injection port 3 by the electromagnetic valve 4, and is used for lubrication, after completing the quantitative injection of lubricating oil, the electromagnetic valve 4 is closed, and the servo cylinder 8 also stops running, and the reciprocating operation can be performed to perform the operation of injecting lubricating oil at intervals.

[0039] In cold weather, the pre-stored lubricating oil in the oil storage bottle 6 will become viscous and have poor flowability due to low temperature, and at this time, the lubricating oil needs to be injected, and the electric heating plate 10 of the heating seat 5 can generate heat, the heat is transmitted to the lubricating oil in the oil storage bottle 6 through the heat conduction plate 11, the lubricating oil is heated, the flowability is improved, the viscosity is reduced, and normal delivery and use are ensured.

[0040] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0041] In the utility model, unless another definite provision and limitation, the term "installation", "arrangement", "connection", "fixation", "screw connection" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation, for the ordinary skill of the art, can understand the above-mentioned term in the utility model specific meaning according to specific circumstances.

[0042] Although the embodiments of the utility model have been shown and described, it will be appreciated by those of ordinary skill in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A self-lubricating centrifugal pump, characterized by Include: Base (1), pump body (2), oil injection mechanism and heating mechanism; the pump body (2), heating mechanism and oil injection mechanism are all arranged on the top of the base (1), the outer wall of the pump body (2) is provided with an oil injection port (3), one end of the oil injection port (3) is fixedly connected with an electromagnetic valve (4); The oil injection mechanism comprises an oil storage bottle (6), a screw cap (7) threadedly connected to one end of the oil storage bottle (6), a servo cylinder (8) fixed to the top of the screw cap (7), and a piston plate (9) drivingly connected to one end of the driving shaft of the servo cylinder (8), and the outer wall of the oil storage bottle (6) is fixed with a lead-out pipe for supplying oil to the oil injection port (3); The heating mechanism comprises a heating seat (5), the oil storage bottle (6) is installed on the heating seat (5), and the heating seat (5) is heated.

2. A self-lubricating centrifugal pump according to claim 1, characterized in that: One end of the oil storage bottle (6) is fixed with a heat conduction plate (11), one end of the heating seat (5) is provided with a threaded groove, and the heating seat (5) is fixed with an electric heating plate (10) in the threaded groove.

3. A self-lubricating centrifugal pump according to claim 2, characterized in that: One end of the oil storage bottle (6) is threadedly connected to the threaded groove of the heating seat (5), and the heat conduction plate (11) is in contact with the electric heating plate (10) of the heating seat (5).

4. A self-lubricating centrifugal pump according to claim 1, characterized in that: One end of the lead-out pipe is fixed with an oil delivery hose (12) between the inlet of the electromagnetic valve (4).

5. A self-lubricating centrifugal pump according to claim 1, characterized in that: The pump body (2) and the heating seat (5) of the heating mechanism are both fixedly connected to the base (1).

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