阅读说明：本技术 一种自动润滑器 (Automatic lubricator ) 是由 田宏霞 王峰 于 2021-08-02 设计创作，主要内容包括：本发明公开了一种自动润滑器,它包括上壳体、下壳体、防尘罩、油脂加注系统以及排出装置,所述下壳体安装于上壳体下方,所述防尘罩可拆卸套于上壳体和油脂加注系统外部；所述上壳体中心开设有套筒安装孔和电机安装孔；所述排出装置包括活动安装于电机安装孔内的减速电机,固接于减速电机输出端上的螺杆,安装于套筒安装孔内的套筒,以及固接于套筒下端并位于下壳体中央的出油端螺母,其中所述螺杆与套筒内腔配合连接；所述电机安装孔内壁上部安装有第二微控开关,电机安装孔内壁下部安装有第一微控开关,所述减速电机底端设置有衔铁。本发明结构简单,工作时对部件磨损很小,能够有效延长使用寿命。(The invention discloses an automatic lubricator, which comprises an upper shell, a lower shell, a dust cover, a grease filling system and a discharge device, wherein the lower shell is arranged below the upper shell; a sleeve mounting hole and a motor mounting hole are formed in the center of the upper shell; the discharging device comprises a speed reducing motor movably arranged in a motor mounting hole, a screw fixedly connected to the output end of the speed reducing motor, a sleeve arranged in the sleeve mounting hole, and an oil outlet end nut fixedly connected to the lower end of the sleeve and positioned in the center of the lower shell, wherein the screw is in fit connection with the inner cavity of the sleeve; the motor mounting hole inner wall upper portion is installed the second micro-control switch, and first micro-control switch is installed to motor mounting hole inner wall lower part, gear motor bottom is provided with armature. The invention has simple structure, little abrasion to the components during working and can effectively prolong the service life.)

1. An automatic lubricator, characterized by: the oil filling device comprises an upper shell (4), a lower shell (6), a dust cover (1), an oil filling system and a discharging device, wherein the lower shell (6) is arranged below the upper shell (4), the dust cover (1) is detachably sleeved outside the upper shell (4) and the oil filling system, the oil filling system is used for filling oil into the discharging device, and the discharging device is used for discharging the oil;

a sleeve mounting hole (42) and a motor mounting hole (43) are formed in the center of the upper shell (4);

the discharging device comprises a speed reducing motor (14) movably arranged in a motor mounting hole (43), a screw rod (9) fixedly connected to the output end of the speed reducing motor (14), a sleeve (8) arranged in a sleeve mounting hole (42), and an oil outlet end nut (7) fixedly connected to the lower end of the sleeve (8) and located in the center of the lower shell (6), wherein the screw rod (9) is connected with the inner cavity of the sleeve (8) in a matched mode;

a second micro-control switch (13) is mounted on the upper portion of the inner wall of the motor mounting hole (43), a first micro-control switch (12) is mounted on the lower portion of the inner wall of the motor mounting hole (43), and an armature (16) is arranged at the bottom end of the speed reducing motor (14);

when the armature (16) moves to the second micro-control switch (13), the speed reducing motor (14) rotates forwards and drives the screw rod (9) to move downwards, and when the armature (16) moves to the first micro-control switch (12), the speed reducing motor (14) rotates backwards and drives the screw rod (9) to move upwards.

2. The automatic lubricator of claim 1, wherein: still be provided with guide rail (11) on motor mounting hole (43) inner wall, gear motor (14) and guide rail (11) sliding fit.

3. The automatic lubricator of claim 1, wherein: the screw (9) comprises a metering section (91) at the bottom, a compression section (92) in the middle and a feeding section (93) at the upper part.

4. The automatic lubricator of claim 1, wherein: the oil outlet end is characterized in that a flange (10) is arranged in the center of the lower shell (6), the upper section of the flange (10) is embedded into the upper shell (4) and is connected with the middle section of the sleeve (8), and the upper end of the oil outlet end nut (7) is fastened with the lower section of the flange (10) through threads.

5. The automatic lubricator according to any one of claims 1 to 4, wherein: the grease filling system comprises a grease bag (3) which is assembled on the upper shell (4) and is positioned in the dust cover (1), and a plurality of grease channels (41) which are uniformly distributed at the top end of the upper shell (4), wherein the upper port of each grease channel (41) is communicated with the bottom of the grease bag (3);

a plurality of oil guide holes (81) corresponding to the number of the grease channels (41) are formed in the upper portion of the sleeve (8), and the lower end opening of each grease channel (41) is communicated with the corresponding oil guide hole (81).

6. The automatic lubricator of claim 5, wherein: the upper end opening of the grease channel (41) is funnel-shaped.

7. The automatic lubricator of claim 5, wherein: and a sealing ring (15) is arranged at the connection position of the lower port of the grease channel (41) and the corresponding oil guide hole (81).

8. The automatic lubricator of claim 5, wherein: and a fastening spring (2) is arranged between the dust cover (1) and the top end of the grease bag (3).

9. The automatic lubricator of claim 1, wherein: a buffer pad (5) is arranged between the upper shell (4) and the lower shell (6).

Technical Field

The invention relates to the technical field of automatic lubrication, in particular to an automatic lubricator.

Background

At present, the automatic lubricator is a reusable, environment-friendly and low-cost lubricator. In advanced countries around the world, automatic lubrication by timing and quantitative oil supply is widely applied to precise machine tools and large-scale metallurgical mining equipment. In both mechanical low pair friction: such as guide rails, upright posts, ram, etc., and also in high pair friction: such as lead screw nuts, rolling bearings, etc., are all used. The automatic lubricator is a part of a DeRuick (DERRICK) vibrating fine screen, which is introduced from the United states by the nonferrous metallurgy industry company, namely an automatic lubricator of a vibrating motor, is specially designed for lubricating oil of rolling bearings at two ends of the vibrating motor, has a simple structure, more parts are standard products, the power of a driving motor is small, the energy is saved, the automatic lubricator is automatically controlled by an electric appliance, the performance is stable and reliable, the manual oiling work of workers is replaced, the oil consumption is reduced, and the automatic lubricator has very remarkable effects on the aspects of improving the lubricating quality and the lubricating effect, preventing the environmental pollution and prolonging the service life of machinery.

The working process of the automatic lubricator is generally as follows: the timer starts the motor at preset time intervals (the time intervals are adjustable and can be respectively adjusted to be 5 min, 10 min, 15 min, 20min and the like), the gear pump is driven by the coupling, the oil pump generates 59.5-8.4kg/cm2 pressure in the oil delivery pipe, the pressure enables the oil injector to start circulation, filtered oil is injected into a vibration motor bearing, the circulation operation time is that the timer enables the oil pump to operate for preset time (5 s or 10 s, 15s and the like), the motor stops operating when the time is up, and when the pressure is removed, the oil injector resets and automatically reloads to prepare for the next oil injection circulation. However, the conventional automatic lubricating device mostly adopts a gear pump or a plunger pump, the structure is complex, the number of components is large, and the impact on the parts of the automatic lubricating device is large in the whole working process, so that the service life of the whole product is shortened.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and provides an automatic lubricator which is simple in structure, has small abrasion to parts during work and can effectively prolong the service life.

In order to solve the technical problems, the technical scheme of the invention is as follows:

an automatic lubricator comprises an upper shell, a lower shell, a dust cover, a grease filling system and a discharging device, wherein the lower shell is arranged below the upper shell;

a sleeve mounting hole and a motor mounting hole are formed in the center of the upper shell;

the discharging device comprises a speed reducing motor movably arranged in a motor mounting hole, a screw fixedly connected to the output end of the speed reducing motor, a sleeve arranged in the sleeve mounting hole, and an oil outlet end nut fixedly connected to the lower end of the sleeve and positioned in the center of the lower shell, wherein the screw is in fit connection with the inner cavity of the sleeve;

the upper part of the inner wall of the motor mounting hole is provided with a second micro-control switch, the lower part of the inner wall of the motor mounting hole is provided with a first micro-control switch, and the bottom end of the speed reducing motor is provided with an armature;

when the armature moves to the second micro-control switch, the speed reducing motor rotates forwards and drives the screw rod to move downwards, and when the armature moves to the first micro-control switch, the speed reducing motor rotates backwards and drives the screw rod to move upwards.

Further, still be provided with the guide rail on the motor mounting hole inner wall, gear motor and guide rail sliding fit.

Further, the screw comprises a metering section at the bottom, a compression section in the middle and a feeding section at the upper part.

Further, a flange is arranged in the center of the lower shell, the upper section of the flange is embedded into the upper shell and connected with the middle section of the sleeve, and the upper end of the oil outlet end nut is fastened with the lower section of the flange through threads.

Further, the grease filling system comprises a grease bag assembled on the upper shell and positioned in the dust cover, and a plurality of grease channels uniformly distributed on the top end of the upper shell, wherein an upper port of each grease channel is communicated with the bottom of the grease bag;

the upper portion of the sleeve is provided with a plurality of oil guide holes corresponding to the number of the grease channels, and the lower port of each grease channel is communicated with the corresponding oil guide hole.

Furthermore, the upper port of the grease channel is funnel-shaped.

Furthermore, a sealing ring is arranged at the joint of the lower port of the grease channel and the corresponding oil guide hole.

Further, a fastening spring is arranged between the dust cover and the top end of the grease bag.

Further, a cushion pad is arranged between the upper shell and the lower shell.

By adopting the technical scheme, the invention has the following beneficial effects:

the invention has novel structural design, the oil in the oil bag flows into the oil guide hole by utilizing gravity, the armature iron repeatedly moves up and down and is triggered by the first micro-control switch and the second micro-control switch, the speed reducing motor realizes the switching of forward and reverse rotation, the speed reducing motor drives the screw rod to rotate forward and reverse to realize the up and down movement, and simultaneously the screw rod rotates to meter and discharge the oil so as to finish the lubricating work. Therefore, the mechanical mechanism is greatly simplified, the cost of the automatic lubricator is reduced, the overall reliability and the service life of the product are improved, and the automatic lubricator is easy to popularize and use. Meanwhile, different displacement requirements can be realized by replacing screws of different models, standardization and serialization of products are realized, and design and manufacturing cost is reduced. In addition, a standard grease bag mode is adopted for oil injection, and the pollution problem of the traditional grease injection is solved.

Drawings

FIG. 1 is a cross-sectional view of the overall construction of the present invention;

FIG. 2 is a top view of the upper housing of the present invention;

FIG. 3 is a schematic view of the screw of the present invention;

wherein, 1, the dust cover; 2. a fastening spring; 3. a grease bag; 4. an upper housing; 41. a grease passage; 42. a sleeve mounting hole; 43. a motor mounting hole; 5. a cushion pad; 6. a lower housing; 7. an oil outlet end nut; 8. a sleeve; 81. an oil guide hole; 9. a screw; 91. a metering section; 92. a compression section; 93. a feeding section; 10. a flange plate; 11. a guide rail; 12. a first micro-control switch; 13. a second micro-control switch; 14. a reduction motor; 15. a seal ring; 16. an armature.

Detailed Description

In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

As shown in fig. 1 to 3, in the present embodiment, there is provided an automatic lubricator composed of an upper housing 4, a lower housing 6, a dust cover 1, a grease charging system, and a discharge device. Lower casing 6 installs in last casing 4 below, and dust cover 1 can be dismantled the cover and in last casing 4 and grease filling system outside, and dust cover 1 is used for preventing dust, removable inside grease after dismantling. The grease filling system is used for filling grease into the discharging device, and the discharging device is used for discharging the grease. The center of the upper shell 4 is provided with a sleeve mounting hole 42 and a motor mounting hole 43, and the discharging device is composed of a speed reducing motor 14 movably mounted in the motor mounting hole 43, a screw rod 9 fixedly connected to the output end of the speed reducing motor 14, a sleeve 8 mounted in the sleeve mounting hole 42, and an oil outlet end nut 7 fixedly connected to the lower end of the sleeve 8 and located in the center of the lower shell 6. The gear motor 14 is externally connected with a control panel and a power supply, the control panel can set various parameters such as timing time, rotating speed and the like, and the control panel can also control the forward or reverse current transmitted to the gear motor 14 so as to realize the forward and reverse rotation of the gear motor 14. The screw rod 9 is connected with the inner cavity of the sleeve 8 in a matched mode, the pushing threads are arranged on the outer surface of the screw rod 9, the coil matched with the threads is arranged inside the sleeve 8, and the screw rod 9 can move downwards relative to the sleeve 8 and push grease downwards when rotating in the forward direction. The upper part of the inner wall of the motor mounting hole 43 is provided with a second micro-control switch 13, the lower part of the inner wall of the motor mounting hole 43 is provided with a first micro-control switch 12, the two micro-control switches are electrically connected with a control panel, and the bottom end of the speed reducing motor 14 is also provided with an armature 16. In an initial state, the armature 16 is located at the second micro-control switch 13, the control panel inputs forward current to the speed reducing motor 14, the speed reducing motor 14 rotates forward to drive the screw rod 9 to rotate forward and move downward together, the grease is pushed downward, the armature 16 moves downward along with the speed reducing motor 14 until the armature 16 moves to the first micro-control switch 12, after the first micro-control switch 12 is triggered, the control panel inputs reverse current to the speed reducing motor 14, the speed reducing motor 14 rotates reversely to drive the screw rod 9 to rotate reversely and move upward together, the grease flows to the position below the sleeve 8, when the armature 16 moves to the second micro-control switch 13 again, the forward current is continuously switched, and after the grease pre-filling is completed in a circulating mode, the grease below the sleeve 8 can be discharged from the oil end nut 7 when the screw rod 9 moves downward, and the lubricating work is completed.

In order to make gear motor 14 more accurate firm when reciprocating, install guide rail 11 on the motor mounting hole 43 inner wall of this embodiment, gear motor 14 and 11 sliding fit of guide rail, gear motor 14 reciprocates under 11 guide effects of guide rail, also improves screw rod 9 and sleeve 8 complex degree of collimation, is difficult to appear the dead problem of card, makes the grease discharge more smoothly high-efficient.

In order to make the grease discharging amount more accurate and controllable, the screw 9 in this embodiment is composed of a metering section 91 at the bottom, a compression section 92 in the middle, and a feeding section 93 at the upper part, when the screw 9 moves downwards in forward rotation, the grease in the gap between the metering section 91 and the sleeve 8 enters the bottom end of the sleeve 8 and is discharged from the oil end nut 7, meanwhile, the space gap between the feeding section 93 and the sleeve 8 is supplemented by the grease, when the screw 9 moves upwards in reverse rotation, the grease in the gap between the compression section 92 and the sleeve 8 enters the gap between the metering section 91, and the grease in the gap between the feeding section 93 and the sleeve 8 enters the gap between the compression section 92 until the screw 9 moves downwards in forward rotation, so that the grease is discharged accurately and stably in circulation.

In order to ensure the tightness of the joint between the sleeve 8 and the oil outlet end nut 7 and prevent loosening and oil leakage, a flange 10 is arranged at the center of the lower shell 6 of the embodiment, the upper section of the flange 10 is embedded into the upper shell 4 and is connected with the middle section of the sleeve 8, and the upper end of the oil outlet end nut 7 is fastened with the lower section of the flange 10 through threads.

Specifically, in order to ensure environmental protection and high efficiency of grease filling, the grease filling system in this embodiment is composed of a grease bag 3 assembled on the upper housing 4 and located in the dust cover 1, and a plurality of grease channels 41 uniformly distributed and opened at the top end of the upper housing 4, an upper port of each grease channel 41 is communicated with the bottom of the grease bag 3, a plurality of oil guide holes 81 corresponding to the number of the grease channels 41 are formed in the upper portion of the sleeve 8, and a lower port of each grease channel 41 is communicated with the corresponding oil guide hole 81. The grease in the grease pocket 3 flows into the grease passage 41 under the action of gravity and enters the gap between the sleeve 8 and the screw 9 through the grease guide hole 81. The oil is injected into the inner grease bag 3, so that the environment can be prevented from being polluted, monitoring is carried out through the control panel, and the grease bag 3 is periodically replaced.

In order to ensure uniformity and efficiency during grease filling, an upper port of the grease channel 41 in the embodiment is designed into a funnel shape, and a funnel-shaped grease channel is adopted, so that filling can be more uniform and efficient.

In order to ensure stability and safety during filling, a sealing ring 15 is arranged at the connection position of the lower port of the grease channel 41 and the corresponding oil guide hole 81 in the embodiment, and the sealing ring 15 can play a role in sealing, so that the phenomenon of oil leakage of grease in the filling process is prevented, and the grease filling quality is further improved.

In order to improve the installation stability of the grease bag 3, the fastening spring 2 is placed between the dust cover 1 and the top end of the grease bag 3 in the embodiment, so that the fastening buffer effect can be achieved, and the installation stability is improved.

In order to enhance the stability of the fit between the upper casing 4 and the lower casing 6, a cushion 5 is installed between the upper casing 4 and the lower casing 6 of the present embodiment, so that the pressing force between the upper casing 4 and the lower casing 6 can be reduced, and the deformation of the casings can be prevented.

The overall working principle of the embodiment is as follows:

the cartridge 8 is first prefilled in the activated mode, filled with grease and the excess air is evacuated. The specific process is that the grease in the grease bag 3 flows to the oil guide holes 81 on the sleeve 8 through a plurality of grease channels 41 on the upper shell 4 under the action of gravity; then, a starting mode is started through a control panel to input forward current to the speed reducing motor 14, and the speed reducing motor 14 rotates forwards and drives the screw rod 9 to rotate forwards and move downwards; when the screw 9 moves downwards, the screw 9 and the inner wall of the sleeve 8 form partial vacuum, and under the action, grease gradually enters the sleeve 8 through gaps among threads; when the armature 16 at the bottom end of the speed reducing motor 14 moves to the first micro-control switch 12, the control panel inputs reverse current to the speed reducing motor 14, at the moment, the speed reducing motor 14 rotates reversely and drives the screw rod 9 to rotate reversely and move upwards together, and grease in a gap between the screw rod 9 and the sleeve 8 flows to the lower part of the sleeve 8; when the armature 16 at the bottom end of the speed reducing motor 14 moves to the second micro-control switch 13, the control panel inputs forward current to the speed reducing motor 14 at the moment, the speed reducing motor 14 rotates forwards and drives the screw rod 9 to rotate forwards and move downwards, and the process is repeated and circulated until the air in the sleeve 8 is completely exhausted, and the space is filled with lubricating grease to complete the starting mode operation.

Then the control panel is set to be in a working mode, and date and time are set for automatic lubrication. When the set time limit point is reached, the control panel inputs forward current to the speed reducing motor 14, the speed reducing motor 14 rotates forward and drives the screw rod 9 to rotate forward and move downward, when the screw rod 9 moves downward to the feeding section 93, the feeding section 93 and the inner wall of the sleeve 8 form partial vacuum, grease gradually enters the sleeve 8 through gaps among threads of the feeding section 93, meanwhile, grease in the compression section 92 of the screw rod 9 enters the metering section 91 through propulsion and compression, and along with the continuous movement of the speed reducing motor 14, grease in the metering section 91 is propelled to be pressed into the bottom end of the sleeve 8 to be discharged from the oil outlet end nut 7 and conveyed to a friction pair needing lubrication through the distributor; when the armature 16 at the bottom end of the speed reducing motor 14 moves to the first micro-control switch 12, the control panel inputs reverse current to the speed reducing motor 14, at the moment, the speed reducing motor 14 rotates reversely and drives the screw rod 9 to rotate reversely and move upwards, grease in a gap between the screw rod 9 and the sleeve 8 flows to the lower part of the sleeve 8 to fill the gap for discharging the grease, and the process is repeated in this way to discharge the grease to finish lubrication. The control panel can set the time length of each lubrication or the grease lubrication content, and after the set standard is reached, the control panel can cut off the power supply of the gear motor 14, and the gear motor 14 finishes resetting.

In addition, when needing to be changed grease package 3, the system can detect grease weight and be less than the setting value, and control panel "the liquid level is low" pilot lamp can twinkle, unpacks dust cover 1 apart this moment, takes off fastening spring 2, can change new grease package 3, convenient and environmental protection.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The technical problems, technical solutions and advantages of the present invention have been described in detail with reference to the above embodiments, and it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.