阅读说明：本技术 一种油脂加注泵 (Grease filling pump ) 是由 李�根 梅立文 姜友爱 焦立军 冯继冲 邓帅奇 于 2020-12-15 设计创作，主要内容包括：本发明涉及润滑领域,尤其涉及一种油脂加注泵。本发明的油脂加注泵包括：泵壳,其上安装有泵体；油箱,密封安装在泵壳上方；驱动电机,安装在泵壳内,与泵体传动连接而可带动泵体进行泵油工作；搅拌桨,处于箱内；驱动电机与搅拌桨传动连接,在泵体工作时,驱动电机同时带动搅拌桨运转以对油箱内的润滑油脂进行搅匀。本发明的油脂加注泵的驱动电机还传动连接有搅拌桨,在泵体工作而向外泵油的同时,搅拌桨能够将油箱内的润滑油脂进行搅拌,这样即使油脂润滑泵在停机的一段时间内产生了分油,也能够在搅拌桨的搅拌作用下搅匀,保证了润滑油脂的质量,进而保证了润滑点位的润滑效果。(The invention relates to the field of lubrication, in particular to a grease filling pump. The grease filling pump of the present invention comprises: a pump housing on which a pump body is mounted; the oil tank is hermetically arranged above the pump shell; the driving motor is arranged in the pump shell and is in transmission connection with the pump body so as to drive the pump body to pump oil; the stirring paddle is positioned in the box; the driving motor is connected with the stirring paddle in a transmission mode, and when the pump body works, the driving motor drives the stirring paddle to operate simultaneously so as to stir the lubricating grease in the oil tank evenly. The driving motor of the grease filling pump is also in transmission connection with the stirring paddle, and the stirring paddle can stir the lubricating grease in the oil tank while the pump body works to pump oil outwards, so that even if the grease lubricating pump is stopped for a period of time to distribute oil, the lubricating grease can be uniformly stirred under the stirring action of the stirring paddle, the quality of the lubricating grease is ensured, and the lubricating effect of a lubricating point position is further ensured.)

1. A grease filling pump comprising:

a pump housing (1) on which a pump body (10) is mounted;

the oil tank (2) is hermetically arranged above the pump shell (1);

the driving motor (3) is arranged in the pump shell (1) and is in transmission connection with the pump body (10) to drive the pump body (10) to pump oil;

characterized by, the grease filling pump still includes:

the stirring paddle (11) is positioned in the oil tank (2);

the driving motor (3) is in transmission connection with the stirring paddle (11), and when the pump body (10) works, the driving motor (3) simultaneously drives the stirring paddle (11) to operate so as to uniformly stir the lubricating grease in the oil tank (2).

2. A grease filling pump according to claim 1, characterized in that the axis of rotation of the mixing paddle (11) is located in the centre of the tank (2) and extends vertically, and the pump body (10) is offset to one side of the centre of the tank (2).

3. A grease filling pump according to claim 2, characterized in that the axis of rotation of the pump body (10) is spaced parallel to the axis of rotation of the mixing paddle (11), the mixing paddle (11) being located on the upper side of the pump body (10).

4. A grease filling pump according to any of claims 1-3, characterized in that the drive motor (3) is a dual output shaft motor, one of the two output shafts of the drive motor (3) being connected to the pump body (10) and the other being connected to the mixing paddle (11).

5. The grease filling pump according to claim 4, wherein the oil tank (2) is in sealed butt joint with the upper end of the pump casing (1) to define an oil storage cavity, the upper end surface of the pump casing (1) forms a cavity bottom of the oil storage cavity, the stirring paddle (11) is arranged close to the cavity bottom, the upper end surface of the pump casing (1) is further provided with a sinking groove, and the pump body (10) is arranged in the sinking groove.

6. The grease filling pump according to claim 5, wherein the pump casing (1) comprises an upper casing and a lower casing, the upper casing and the lower casing are buckled with each other to enclose an inner cavity, the driving motor (3) is installed in the inner cavity, the pump body (10) and the stirring paddle (11) are installed on the upper casing, and the oil tank (2) is in sealed butt joint with the upper casing.

7. A grease filling pump according to claim 5, characterized in that the mixing paddle (11) is a U-shaped paddle with an upward opening, the two parallel sides (112) of the U-shaped paddle are at least partially of a sloping configuration to drive the grease to flow horizontally during mixing, and the bottom side (111) of the U-shaped paddle is at least partially of a sloping configuration to drive the grease to flow up and down during mixing.

8. A grease filling pump according to claim 7, characterised in that the two parallel sides (112) of the U-shaped blade abut against the inner wall of the tank (2).

9. The grease filling pump according to claim 7, wherein the U-shaped paddle is an integrally formed sheet, and the ramp structure is formed by stamping or bending.

10. A grease filling pump according to any of claims 1-3, characterized in that the mixing paddles (11) comprise a radially extending part, which is at least partly ramp-shaped for driving the grease up and down during mixing, and an axially extending part, which is at least partly ramp-shaped for driving the grease horizontally during mixing.

Technical Field

The invention relates to the field of lubrication, in particular to a grease filling pump.

Background

With the wide application of large engineering vehicles and engineering equipment, concentrated lubrication systems are increasingly applied. The centralized lubricating system supplies oil through a grease filling pump, and lubricating grease is conveyed to each lubricating point by an oil conveying pipeline and a distributor connected in series on the oil conveying pipeline. The lubricating grease is a stable solid or semisolid product formed by dispersing a thickening agent in base lubricating oil, and a small amount of base lubricating oil is separated out during use or long-term storage, which is called oil separation. And once the phenomenon of oil separation appears, the colloid stability of the lubricating grease is greatly reduced, so that the serious oil separation is easier to cause under the action of temperature, pressure, centrifugal force and the like, the quality of the lubricating grease is greatly influenced, and the lubricating effect is further influenced. The centralized lubricating system usually runs intermittently in the actual use process, so that lubricating grease in the oil tank of the grease filling pump can be separated when the operation is stopped, particularly under the vibration working condition of a vehicle, and great hidden danger is caused to the lubricating effect of a lubricating point.

Disclosure of Invention

The invention aims to provide a grease filling pump, which is used for solving the problem that the oil distribution phenomenon is easy to occur in an oil tank of the grease filling pump of the existing centralized lubricating system, and further the hidden danger is caused to the lubricating effect of a lubricating point position.

The grease filling pump of the present invention comprises:

a pump housing on which a pump body is mounted;

the oil tank is hermetically arranged above the pump shell;

the driving motor is arranged in the pump shell and is in transmission connection with the pump body so as to drive the pump body to pump oil;

the stirring paddle is positioned in the box;

the driving motor is connected with the stirring paddle in a transmission mode, and when the pump body works, the driving motor drives the stirring paddle to operate simultaneously so as to stir the lubricating grease in the oil tank evenly.

The pump body driving motor of the grease filling pump is also in transmission connection with the stirring paddle, and the stirring paddle can stir the lubricating grease in the oil tank when the pump body works to pump oil outwards, so that even if the grease lubricating pump generates oil distribution within a period of shutdown, the lubricating grease can be uniformly stirred under the stirring action of the stirring paddle, the quality of the lubricating grease is ensured, and the lubricating effect of a lubricating point position is further ensured.

Furthermore, the axis of rotation of stirring rake is in the central point of oil tank and vertical extension, the pump body is the one side at the oil tank center partially. The stirring paddle is positioned in such a position, so that the lubricating grease in the oil tank can be stirred uniformly as much as possible.

Furthermore, the rotating axis of the pump body is parallel to and spaced from the rotating axis of the stirring paddle, and the stirring paddle is positioned on the upper side of the pump body. Such position setting makes the pump body be in lower position as far as possible on the one hand, can carry out the complete suction to the lubricating grease in the oil tank, and on the other hand can make the pump body when the upside suction lubricating grease, the lubricating grease that is pumped by it is the lubricating grease that has been stirred by the stirring rake, guarantees lubricated effect.

Furthermore, the driving motor is a motor with double output shafts, one of the two output shafts of the driving motor is connected to the pump body, and the other output shaft of the driving motor is connected to the stirring paddle. The structure of the transmission part of the whole grease filling pump can be simplified by adopting the motor with double output shafts, and the volume of the grease filling pump is reduced.

Furthermore, the oil tank is in sealed butt joint with the upper end of the pump shell to form an oil storage cavity, the upper end surface of the pump shell forms a cavity bottom of the oil storage cavity, the stirring paddle is arranged close to the cavity bottom, a sinking groove is further formed in the upper end surface of the pump shell, and the pump body is installed in the sinking groove. Set up the pump head in heavy inslot and set up the stirring rake on heavy groove notch, guarantee on the one hand that the pump body can not take place to interfere with the stirring rake, on the other hand makes the pump body be in less space, the lubricating grease in the extraction oil storage chamber that can be more abundant, after the lubricating grease in the oil storage chamber has been taken out, inside lubricating grease surplus is great, causes the grease extravagant.

As a further optimized scheme, the pump shell comprises an upper shell and a lower shell, the upper shell and the lower shell are connected in a buckling mode to form an inner cavity, the driving motor is installed in the inner cavity, the pump body and the stirring paddle are installed on the upper shell, and the oil tank is in sealing butt joint with the upper shell. The pump shell structure is simple to assemble and convenient to manufacture, and the integral upper shell is butted with the oil tank so as to ensure sealing.

As another further optimized scheme, the stirring paddle is a U-shaped paddle with an upward opening, at least part of two parallel edges of the U-shaped paddle is of a slope structure, and the stirring paddle drives lubricating grease to flow horizontally during stirring, and at least part of the bottom edge of the U-shaped paddle is of a slope structure, and the stirring paddle drives lubricating grease to flow vertically during stirring. The stirring paddle is simple in structure, can stir lubricating grease to flow in more directions, and is convenient to stir uniformly.

Furthermore, two parallel edges of the U-shaped blade abut against the inner wall of the oil tank. Lubricating grease can be stirred from the most marginal position of oil storage chamber and radially flow like this, can make the interior all grease of oil storage chamber all take place to flow, and stirring effect is better.

Furthermore, the U-shaped paddle is an integrally formed sheet body, and a slope surface structure on the U-shaped paddle is formed by stamping or bending. The paddle is simple in structure, convenient to manufacture and low in adhered lubricating grease amount.

In addition, another optimization scheme, the stirring paddle comprises a radial extension part and an axial extension part, wherein at least part of the radial extension part is of a slope surface structure, lubricating grease is driven to flow up and down during stirring, and at least part of the axial extension part is of a slope surface structure, and lubricating grease is driven to flow horizontally during stirring. Therefore, the lubricating grease can flow in the oil tank in the axial direction and the radial direction, and the uniform stirring effect is better.

Drawings

FIG. 1 is a schematic structural view of a first embodiment of a grease filling pump according to the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken at B-B of FIG. 1;

FIG. 4 is a cross-sectional view taken at C-C of FIG. 2;

FIG. 5 is a schematic perspective view of a paddle;

fig. 6 is a top view of the paddle.

In the figure: 1. a pump housing; 10. a pump body; 11. a stirring paddle; 110. a connecting section; 111. an upper and lower agitation section; 112. a horizontal agitation section; 2. an oil tank; 3. a drive motor; 30. a first output shaft; 31. a second output shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

The first specific embodiment of the grease filling pump of the invention:

the grease filling pump of the embodiment is shown in fig. 1-4, and comprises a pump shell 1 and an oil tank 2, wherein the pump shell 1 mainly comprises a lower shell and an upper shell, the upper shell and the lower shell are buckled and connected to form an inner cavity, and a driving motor 3 is fixedly installed in the inner cavity. The driving motor 3 is a motor with two output shafts, and has a first output shaft 30 and a second output shaft 31, and the two output shafts vertically penetrate out of the upper shell from the upper side surface of the driving motor 3 and are arranged in parallel at intervals.

The oil tank 2 is integrally of a cylindrical structure with a downward opening, and the oil tank 2 is buckled on the upper end face of the upper shell through the lower end opening of the oil tank in a sealing mode and forms an oil storage cavity with the upper shell. The upper end of the oil storage cavity is provided with an air hole so as to balance the pressure when oil is supplied to the oil storage cavity and is pumped out from the oil storage cavity. Two output shafts of driving motor 3 are stretched into the oil storage cavity after being worn out from the upper shell, and in order to avoid lubricating grease in the oil storage cavity from leaking into the inner cavity of the pump shell from the positions where the output shafts are worn out, the two output shafts are in rotary sealing fit with the upper shell.

The upper shell is structurally shown in figures 2-4, the outer contour of the upper end face of the upper shell is circular, the oil tank 2 with a cylindrical structure is just hermetically buckled at the edge position of the upper shell, the upper end face of the upper shell sinks in a D-shaped area on the chord side to form a sinking groove, a pump body 10 of the gear pump is installed in the sinking groove, and the pump body 10 is lower than the groove edge. The first output shaft 30 of the driving motor 3 is connected with the pump body and used for driving the pump body 10 to operate, the second output shaft 31 of the driving motor 3 penetrates out from the center of the upper shell, and one end of the second output shaft extending into the oil storage cavity is connected with the stirring paddle 11.

Like this drive pump body work and when outwards pumping oil at driving motor, the stirring rake can stir the lubricating grease in the oil tank under driving motor's drive, even grease lubricant pump has produced the branch oil in a period of shutting down like this, also can homogenize under the stirring effect of stirring rake, has guaranteed the quality of lubricating grease, and then has guaranteed the lubricated effect of lubricated position. And the two output shafts of the driving motor are radially spaced, the action parts connected with the two output shafts are axially spaced and staggered in space, the operation of the two output shafts is not influenced mutually, and the reliable operation of the whole grease filling pump is ensured.

Specifically, the structure of the paddle 11 is as shown in fig. 4-6, and it is a U-shaped blade with an upward opening formed by processing an integrally formed sheet structure. The middle part of the bottom edge of the U-shaped paddle is provided with a connecting section 110, the middle position of the connecting section 110 is provided with a rotation stopping connecting hole, and the U-shaped paddle is connected with the second output shaft in a rotation stopping way through the rotation stopping connecting hole; the bottom edges of two sides of the connecting section 110 form an upper stirring section 111 and a lower stirring section 111, the upper stirring section 111 and the lower stirring section 111 are stamped into a slope structure with one higher side and one lower side in the width direction, so that the whole bottom edge is in a fan blade shape, and lubricating grease in the oil storage cavity is driven to flow in the up-down direction when the U-shaped paddle rotates; two parallel edges of the U-shaped blade are horizontal stirring sections 112, the upper end of the U-shaped blade is internally folded with a part of inclined plane to form a slope structure, and lubricating grease in the oil storage cavity is driven to flow in the horizontal direction when the U-shaped blade rotates.

In order to fully and completely stir the lubricating grease in the oil storage cavity, the bottom edge of the U-shaped paddle is abutted against (not contacted with) the upper end surface of the upper shell, namely the cavity bottom of the oil storage cavity is arranged, and two parallel edges of the U-shaped paddle are abutted against (not contacted with) the inner wall of the oil tank, so that the lubricating grease can be stirred from the most edge position of the oil storage cavity to flow, all the grease in the oil storage cavity can flow, and the stirring effect is better.

By introducing the grease filling pump in the embodiment, the grease filling pump synchronously drives the pump body and the stirring paddle to rotate through the driving motor with the double output shafts, so that the phenomenon of oil separation of lubricating grease in the oil tank in the shutdown phase can be avoided, and the quality and the lubricating effect of oil products are ensured. Of course, the grease filling pump of the present invention is not limited to the above-described embodiments, and modified embodiments based on the design concept of the present invention are provided below.

For example, in other embodiments, unlike the embodiments described above, the pump body is a plunger pump, and includes a central cam drivingly connected to the first output shaft, and a plunger assembly engaged with an outer contour of the central cam, wherein the central cam, when rotated, drives a plunger of the plunger assembly to reciprocate to pump oil.

For example, in other embodiments, unlike the above-described embodiment, the pump body and the paddles are symmetrically arranged about the center of the oil tank, and the radial coverage of the paddles needs to be appropriately reduced to avoid interference with the pump body; or when more than two stirring paddles exist, the pump body is located in the middle of the oil tank, the stirring paddles are uniformly arranged in the oil tank around the pump body, and the radial coverage range of the stirring paddles needs to be designed appropriately at the moment so as to avoid the mutual interference between the stirring paddles and the pump body and between the stirring paddles.

For example, in other embodiments, different from the above-described embodiments, the driving motor is a single-output-shaft motor, and is in transmission connection with two transmission shafts through the output shaft, and drives the pump body and the stirring paddle to rotate through the two transmission shafts, respectively, and performs appropriate speed reduction and torque increase design on the transmission path between the output shaft and the two transmission shafts according to the loads corresponding to the pump body and the stirring shaft; the axes of the two transmission shafts are not necessarily parallel and spaced, but can also be arranged perpendicular to each other, for example, one of the transmission shafts horizontally extends into the sink groove of the upper shell and is connected with the pump body, and the other transmission shaft vertically penetrates through the upper shell and is connected with the stirring paddle.

For another example, in other embodiments, different from the above-described embodiments, the pump body and the stirring paddle may be both located on the upper end surface of the upper housing and spaced in the up-down direction; the stirring paddle can be in an impeller type comprising a plurality of blades, or in a continuous spiral blade type, or in a roller comb type; the slope structure on the paddle can also be formed by fixing a wedge-shaped block on the page; a single-side L-shaped paddle can be used, the structure of the paddle is the same as that of a half U-shaped paddle, the vertical paddle stirs grease near the wall of the oil tank, the grease flows to the center of the oil tank, and the horizontal paddle extrudes the grease downwards.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.