Low oil level detection device for lubricating pump

Abstract

The utility model relates to the technical field of lubricating pumps, in particular to a lubricating pump low oil level detection device which comprises an electric lubricating pump, and the electric lubricating pump comprises an oil cup, a scraper assembly and a rotating motor. The scraper assembly comprises a connecting transverse plate and a vertical plate; a rotating oil level detection assembly is arranged at the rear edge of the connecting transverse plate; the oil level detection assembly comprises an oil level detection plate and a rotating shaft; the oil level detection plate comprises a control plate and a push-back plate; the control panel is composed of a first connecting plate and a second connecting plate which are connected in a bent mode. A bending angle between the first connecting plate and the second connecting plate is an obtuse angle; the first connecting plate is located above the connecting transverse plate; the second connecting plate and the rotating shaft are mutually fixed; the push-back plate is vertically arranged on the top surface of the end part of the second connecting plate; a reset block and a proximity switch are arranged on the bottom surface of the oil cup; the reset block is slightly lower than the height from the bottom surface of the connecting transverse plate to the bottom surface of the oil cup; the oil level of lubricating oil can be monitored in real time, and warning is given out in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to lubrication pump technical field especially lubrication pump low oil level detection device. BACKGROUND

[0002] The technical background of the lubrication pump low oil level device mainly comes from the pursuit of stability and reliability of mechanical equipment lubrication system. In the lubrication system, the lubrication pump is the core component, responsible for delivering lubricating oil to each friction point of the equipment to ensure normal operation and reduce wear. However, in the actual application process, the oil level control of lubricating oil becomes a key problem.

[0003] On the one hand, if the oil level of lubricating oil is too low, the lubrication pump may suck in air instead of lubricating oil, resulting in greatly reduced lubrication effect, and even may cause equipment failure or damage. This situation is particularly common in long-running or unattended equipment, so real-time monitoring and early warning of lubrication pump oil level become particularly important.

[0004] On the other hand, with the continuous development of industrial technology, the accuracy and stability of equipment lubrication are also increasingly high. The traditional lubrication method may not meet the high requirements of modern equipment for lubrication, so a more intelligent and reliable lubrication system is needed to ensure the normal operation of the equipment. SUMMARY

[0005] The purpose of the present application is to provide a lubrication pump low oil level detection device to solve the problems in the prior art.

[0006] The embodiment of the present application provides a lubrication pump low oil level detection device, which comprises an electric lubrication pump, the electric lubrication pump comprises an oil cup, a scraper assembly and a rotary motor; the scraper assembly comprises a connecting horizontal plate and a vertical plate; the two side edges of the connecting horizontal plate are divided into a front edge and a rear edge; an oil level detection assembly is arranged at the rear edge of the connecting horizontal plate; the oil level detection assembly comprises an oil level detection plate and a rotating shaft; the oil level detection plate comprises a control plate and a return plate; the control plate is composed of a first connecting plate and a second connecting plate which are connected by bending; the bending angle between the first connecting plate and the second connecting plate is an obtuse angle; the first connecting plate is located above the connecting horizontal plate; the second connecting plate is fixed with the rotating shaft; the return plate is vertically arranged on the top surface of the end portion of the second connecting plate; a reset block and a proximity switch are arranged on the bottom surface of the oil cup; the height of the reset block is slightly lower than the height from the bottom surface of the connecting horizontal plate to the bottom surface of the oil cup; when the second connecting plate rotates to the vertical direction, the end portion of the second connecting plate is located in the sensing range of the proximity switch.

[0007] Further, one end of the connecting horizontal plate is vertically fixed with the vertical plate, and the other end of the connecting horizontal plate is connected with the output end of the rotary motor.

[0008] Further, the connecting horizontal plate is arranged along the profile of the bottom surface of the oil cup; the front edge of the connecting horizontal plate is the front advancing edge of the connecting horizontal plate when rotating; and the rear edge is the opposite edge of the front edge.

[0009] Further, an installation support is fixedly arranged on the upper surface of the rear edge of the connecting horizontal plate; and the rotating shaft is rotationally connected with the installation support.

[0010] Further, a connecting block is arranged on the rotating shaft; and the second connecting plate is fixedly connected with the connecting block and perpendicular to the connecting block.

[0011] Further, the reset block and the proximity switch are arranged in a staggered manner, and the interval distance between the reset block and the proximity switch is not less than the radius of the oil cup.

[0012] The oil level detection assembly and the reset block are matched, the oil level of the lubricating oil is monitored in real time, and a warning is sent in time when the oil level is lower than the set value. The device not only improves the stability and reliability of the lubricating system, but also greatly reduces the failure rate caused by poor lubrication of the equipment, and provides a powerful guarantee for the smooth operation of industrial production. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a side structure sectional view (not containing the oil cup) of the utility model.

[0015] Figure 3 It is a structure schematic diagram of A when the oil amount in the oil cup is insufficient.

[0016] Figure 4 It is a structure schematic diagram of A when the oil amount in the oil cup is sufficient.

[0017] Figure 5 It is a top structure sectional view (counterclockwise rotation) of the utility model.

[0018] Figure 6 It is a structure schematic diagram of the scraper assembly and the oil level detection assembly.

[0019] Figure 7 It is a front view of the scraper assembly and the oil level detection assembly.

[0020] In the drawing:

[0021] 1, oil cup; 2, motor housing; 21, rotary motor; 3, scraper assembly; 31, connecting horizontal plate; 311, front edge; 312, rear edge; 32, vertical plate; 4, oil level detection assembly; 41, rotating shaft; 411, connecting block; 42, oil level detection plate; 420, first connecting plate; 421, second connecting plate; 422, pushback plate; 5, reset block; 6, proximity switch. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 7 The device shown is a low oil level detection device for a lubrication pump, including an electric lubrication pump, which includes an oil cup 1, a scraper assembly 3, and a rotary motor 21. The scraper assembly 3 includes a connecting horizontal plate 31 and a vertical plate 32. The two sides of the connecting horizontal plate 31 are divided into a front edge 311 and a rear edge 312. A rotating oil level detection component 4 is provided at the rear edge 312 of the connecting horizontal plate 31. The oil level detection component 4 includes an oil level detection plate 42 and a rotating shaft 41. The oil level detection plate 42 includes a control plate and a push plate 422. The control plate is composed of a first connecting plate 420 and a second connecting plate 421 that are bent and connected. The bending angle between the first connecting plate 420 and the second connecting plate 421 is an obtuse angle. The first connecting plate 420 is located at the connecting... Above the horizontal plate 31; the second connecting plate 421 is fixed to the rotating shaft 41; the push plate 422 is vertically arranged on the top surface of the end of the second connecting plate 421; a reset block 5 and a proximity switch 6 are provided on the bottom surface of the oil cup 1; the proximity switch 6 is a switch-type sensor, which is existing technology. The proximity switch used in this utility model has a sensing distance of 2mm. The height of the reset block 5 is slightly lower than the height from the bottom surface of the connecting horizontal plate 31 to the bottom surface of the oil cup 1 to avoid scraping when the connecting horizontal plate 31 rotates; when the second connecting plate 421 rotates to the vertical direction, the oil level detection plate 42, located within the sensing range of the proximity switch 6, can rotate around the rotating shaft 41. The second connecting plate 421 rotates from the side of the connecting horizontal plate 31 to the vertical direction. The bending structure and push plate of the oil level detection plate 42 allow it to flip downward around the rotating shaft 41 under the resistance of the grease, causing the second connecting plate 421 to flip from the rear edge outward, thus controlling the change in the position of the end of the second connecting plate 421.

[0024] The electric lubrication pump uses a rotating motor 21 to drive the scraper assembly 3 to rotate counterclockwise. The oil level detection plate 42 is reset by the resistance provided by the grease in the lubrication pump oil cup during rotation. For each counterclockwise rotation of the scraper assembly 3, the proximity switch 6 can provide a pulse signal.

[0025] If there is no grease in the lubricating pump body oil cup 1, the reset block 5 will lift the oil level detection plate 42 when the scraper assembly 3 rotates. Because there is a small amount of grease in the lubricating pump oil cup 1, the oil level detection plate 4 cannot be reset by the grease resistance, causing the proximity switch 6 to be more than 2mm away from the oil level detection plate 42, and unable to signal output.

[0026] One end of the connecting horizontal plate 31 is vertically fixed with the vertical plate 32, and the other end of the connecting horizontal plate 31 is connected with the output end of the rotating motor 21. Generally, the electric lubricating pump is provided with a scraper assembly. If it is not provided, it can be installed by referring to the existing structure.

[0027] The connecting horizontal plate 31 is arranged along the bottom surface contour of the oil cup 1. In the embodiment, the connecting horizontal plate 31 is bent. The front edge of the connecting horizontal plate 31 is the front edge when the connecting horizontal plate 31 rotates, and the rear edge is the opposite edge of the front edge. When rotating clockwise, the right side of the horizontal plate is the front edge, and when rotating counterclockwise, the left side of the horizontal plate is the front edge.

[0028] The upper surface of the rear edge of the connecting horizontal plate 31 is fixedly provided with a mounting bracket. The rotating shaft 41 is rotatably connected with the mounting bracket. The connecting horizontal plate 31 can rotate in the oil cup 1, driving the oil level detection assembly 4 to rotate synchronously in the oil cup 1, and successively passing through the reset block 5 and the proximity switch 6 at the bottom.

[0029] The rotating shaft 41 is provided with a connecting block 411. The second connecting plate 421 is vertically and fixedly connected with the connecting block 411.

[0030] The reset block 5 and the proximity switch 6 are arranged in a staggered manner, and the distance between them is not less than the radius of the oil cup.

[0031] When the lubricating pump works normally, the scraper assembly 3 rotates counterclockwise, the oil level detection assembly 4 rotates with the scraper, the oil level detection plate 42 overturns downward under the resistance of the grease in the lubricating pump oil cup 1, the end of the second connecting plate 421 enters the sensing range of the proximity switch 6, and when the scraper rotates above the proximity switch 6, the proximity switch 6 at the bottom detects the second connecting plate 421 and feeds back a pulse signal. This is the lubricating pump with oil state.

[0032] When the lubricating pump body is insufficient in grease, the reset block 5 lifts the second connecting plate 421 of the oil level detection plate 42 when the scraper rotates. At this time, the oil level detection plate 42 cannot be reset by the resistance of the grease in the lubricating pump oil cup, and the proximity switch 6 cannot detect the oil level detection plate 42, so that the proximity switch 6 cannot feed back a pulse signal. This is the low oil level state of the lubricating pump.

[0033] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A low oil level detection device for a lubrication pump comprising an electrically driven lubrication pump, characterized in that The electric lubricating pump comprises an oil cup, a scraper assembly and a rotary motor; the scraper assembly comprises a connecting horizontal plate and a vertical plate; the two side edges of the connecting horizontal plate are divided into a front edge and a rear edge; an oil level detection assembly is arranged at the rear edge of the connecting horizontal plate; the oil level detection assembly comprises an oil level detection plate and a rotating shaft; the oil level detection plate comprises a control plate and a return plate; the control plate is composed of a first connecting plate and a second connecting plate which are connected by bending; the bending angle between the first connecting plate and the second connecting plate is an obtuse angle; the first connecting plate is located above the connecting horizontal plate; the second connecting plate is fixed with the rotating shaft; the return plate is arranged vertically on the top surface of the end of the second connecting plate; a reset block and a proximity switch are arranged on the bottom surface of the oil cup; the height of the reset block is slightly lower than the height from the bottom surface of the connecting horizontal plate to the bottom surface of the oil cup; when the second connecting plate is rotated to the vertical direction, the end of the second connecting plate is located in the sensing range of the proximity switch.

2. The low oil level detection apparatus for a lubricating pump according to claim 1, characterized by One end of the connecting horizontal plate is vertically fixed with the vertical plate, and the other end of the connecting horizontal plate is connected with the output end of the rotary motor.

3. The low oil level detection apparatus for a lubricating pump according to claim 2, characterized by The connecting horizontal plate is arranged along the contour of the bottom surface of the oil cup; the front edge of the connecting horizontal plate is the advancing edge of the connecting horizontal plate when rotating; and the rear edge is the opposite edge of the front edge.

4. The low oil level detection apparatus for a lubricating pump according to claim 3, characterized by An installation support is fixedly arranged on the upper surface of the rear edge of the connecting horizontal plate; and the rotating shaft is rotatably connected with the installation support.

5. The low oil level detection apparatus for a lubricating pump according to claim 1, characterized by A connecting block is arranged on the rotating shaft; and the second connecting plate is fixedly connected with the connecting block.

6. The low oil level detection apparatus for a lubricating pump according to claim 1, characterized by The reset block and the proximity switch are arranged in a staggered manner, and the interval distance between the reset block and the proximity switch is not less than the radius of the oil cup.

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