Displacement-adjustable plunger pump pressure lubricating device

Abstract

The utility model discloses a displacement-adjustable plunger pump pressure lubricating device, which relates to the technical field of plunger pump accessories, and comprises a plunger pump, an oil inlet pipe connected to the top of the plunger pump; the lubricating oil filtering mechanism is used for filtering the lubricating oil output by the plunger pump; the separation driving mechanism is used for separating the inner cavity of the shell and driving the circular filter screen to rotate; the separation driving mechanism comprises a first sealing shell, a second sealing shell and a driving motor; and the first sealing shell and the second sealing shell are jointly arranged on the outer side of the circular filter screen in a sleeving manner. The circular filter screen can be cleaned after lubricating oil is filtered by the circular filter screen, impurities in filter holes of the circular filter screen are cleaned, the situation that the lubricating oil passing efficiency is reduced due to impurity blockage is avoided, the filtering effect is guaranteed, and meanwhile the actual using effect is more ideal.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pump accessories, in particular to a plunger pump pressure lubrication device with adjustable displacement. Background Art

[0002] The plunger pump, also known as the reciprocating pump, is an important device in the hydraulic system. It relies on the reciprocating motion of the plunger in the cylinder to change the volume of the sealed working chamber to achieve the suction and compression of the medium. The plunger pumps commonly used in the market are equipped with a lubrication system during use to reduce friction in local areas and prevent wear.

[0003] The utility model patent with patent authorization announcement number CN 220470200 U discloses a single-cylinder plunger pump lubrication mechanism, including an oil inlet pipe and an oil outlet, and also includes a filter box, the two sides of the filter box are respectively connected to an oil drain pipe and an upper oil pipe, the oil drain pipe is connected to the oil inlet pipe through a flange, a partition is installed inside the filter box, and a U-shaped structure with an opening facing the upper oil pipe is provided at the bottom of the partition.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that during the lubricating oil filtration process, impurities in the lubricating oil will fill the filter holes on the filter layer. Therefore, as the use time increases, the efficiency of the lubricating oil passing through will continue to decrease, thereby affecting the filtration effect, and the actual use effect is not ideal.

[0005] Therefore, it is necessary to invent a plunger pump pressure lubrication device with adjustable displacement to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a plunger pump pressure lubrication device with adjustable displacement, which is provided with a partition driving mechanism so that the inner cavity of the shell can be divided into a cleaning chamber located at the top and a filtering chamber located at the bottom by utilizing a first sealed shell, a second sealed shell, a first partition and a second partition. The cleaning chamber provides a passage for cleaning liquid, and the filtering chamber provides a passage for the lubricating oil to be filtered. In addition, during the filtering process of the lubricating oil, the driving motor drives the circular filter screen to rotate continuously, so that the circular filter screen can be cleaned by the cleaning liquid during the filtering process of the lubricating oil, so as to solve the problem that during the filtering process of the lubricating oil proposed in the above background technology, impurities in the lubricating oil will fill the filter holes on the filter layer, so that with the extension of the use time, the efficiency of the lubricating oil passing will continue to decrease, thereby affecting the filtering effect, and the actual use effect is not ideal.

[0007] According to one aspect of the present disclosure, the following technical solution is provided: a plunger pump pressure lubrication device with adjustable displacement, comprising:

[0008] A plunger pump, wherein the top of the plunger pump is connected with an oil inlet pipe;

[0009] A lubricating oil filtering mechanism, wherein the lubricating oil filtering mechanism is used to filter the lubricating oil output by the plunger pump;

[0010] A partition driving mechanism, the partition driving mechanism is used to partition the internal chamber of the housing and drive the circular filter to rotate;

[0011] The separation driving mechanism comprises a first sealed housing, a second sealed housing and a driving motor;

[0012] The first sealed shell and the second sealed shell are jointly sleeved and arranged outside the circular filter screen, the first sealed shell and the second sealed shell are both fixedly connected to the inner wall of the shell, the first sealed shell and the second sealed shell are both penetrated by a channel, the drive motor is fixedly arranged in the middle of the right side of the second sealed shell, and its output shaft penetrates the second sealed shell and is fixedly connected to the circular filter screen; and

[0013] A cleaning mechanism is used to clean the circular filter screen.

[0014] According to at least one embodiment of the adjustable displacement plunger pump pressure lubrication device disclosed herein, the lubricating oil filtering mechanism includes a shell, an oil outlet pipe and a circular filter screen, the shell is fixedly connected to the end of the oil inlet pipe, the oil outlet pipe is fixedly penetrated and arranged at the bottom left side of the shell, and the circular filter screen is located inside the shell.

[0015] According to the adjustable displacement plunger pump pressure lubrication device of at least one embodiment of the present disclosure, the separation drive mechanism further includes a sealing cover, which is sleeved and disposed on the outside of the drive motor and fixedly connected to the second sealing housing.

[0016] According to the adjustable displacement plunger pump pressure lubrication device of at least one embodiment of the present disclosure, the partition drive mechanism also includes a first partition and a second partition, the first partition is fixedly arranged on the left side of the first sealed shell and fixedly connected to the inner wall of the shell, the second partition is fixedly sleeved on the outside of the sealing cover and fixedly connected to the second sealed shell, and the second partition is fixedly connected to the inner wall of the shell.

[0017] According to the adjustable displacement plunger pump pressure lubrication device of at least one embodiment of the present disclosure, the cleaning mechanism includes a cleaning liquid inlet pipe, a first flow regulating valve and a cleaning liquid outlet pipe, the cleaning liquid inlet pipe is fixedly arranged through the top right side of the shell, the first flow regulating valve is arranged on the cleaning liquid inlet pipe, and the cleaning liquid outlet pipe is fixedly arranged through the top left side of the shell.

[0018] Technical effects and advantages of the utility model:

[0019] The utility model is provided with a partition driving mechanism, so as to utilize the first sealed shell, the second sealed shell, the first partition and the second partition to separate the inner cavity of the shell into a cleaning chamber located at the top and a filtering chamber located at the bottom. The cleaning chamber provides a passage for the cleaning liquid, and the filtering chamber provides a passage for the lubricating oil to be filtered. In addition, during the filtering process of the lubricating oil, the driving motor drives the circular filter screen to rotate continuously, so that the circular filter screen can be cleaned by the cleaning liquid during the process of filtering the lubricating oil. Compared with the same type of device in the prior art, the utility model can clean the circular filter screen after filtering the lubricating oil, and then clean the impurities inside the filter holes of the circular filter screen, so as to avoid clogging of impurities and resulting in reduced efficiency of the lubricating oil passing, thereby ensuring the filtering effect and making the actual use effect more ideal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0021] Figure 1 It is a schematic diagram of the overall structure of a plunger pump pressure lubrication device with adjustable displacement according to an embodiment of the present disclosure.

[0022] Figure 2 It is a schematic structural diagram of a lubricating oil filtering mechanism and a cleaning mechanism of a plunger pump pressure lubrication device with adjustable displacement according to an embodiment of the present disclosure.

[0023] Figure 3 It is a schematic diagram of the structure of a separation drive mechanism of a plunger pump pressure lubrication device with adjustable displacement according to an embodiment of the present disclosure.

[0024] The specific reference numerals in the figure are:

[0025] Piston pump;

[0026] Oil inlet pipe;

[0027] Lubricating oil filtering mechanism; 31. housing; 32. oil outlet pipe; 33. circular filter screen;

[0028] Separation drive mechanism; 41, first sealed housing; 42, second sealed housing; 43, sealing cover; 44, driving motor; 45, first partition; 46, second partition;

[0029] Cleaning mechanism; 51, cleaning liquid input pipe; 52, first flow regulating valve; 53, cleaning liquid output pipe. DETAILED DESCRIPTION

[0030] For descriptive purposes, the present disclosure may use spatially relative terms such as "below," "beneath," "below," "above," "on," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, a component described as "below" or "beneath" another component or feature would then be positioned "above" the other component or feature. Thus, the exemplary term "below" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and as such, the spatially relative descriptors used herein should be interpreted accordingly.

[0031] Figure 1 It is a schematic diagram of the overall structure of a plunger pump pressure lubrication device with adjustable displacement according to an embodiment of the present disclosure.

[0032] Figure 2 It is a schematic structural diagram of a lubricating oil filtering mechanism 3 and a cleaning mechanism 5 of a plunger pump pressure lubrication device with adjustable displacement according to an embodiment of the present disclosure.

[0033] Figure 3 It is a schematic structural diagram of a separation drive mechanism 4 of a plunger pump pressure lubrication device with adjustable displacement according to an embodiment of the present disclosure. Example 1

[0034] like Figure 1-Figure 3 As shown, the adjustable displacement plunger pump pressure lubrication device disclosed in the present invention may include: a plunger pump 1, an oil inlet pipe 2, a lubricating oil filtering mechanism 3 and other components.

[0035] like Figure 2 As shown, in the present disclosure, the lubricating oil filtering mechanism 3 includes a shell 31, an oil outlet pipe 32 and a circular filter screen 33, wherein the shell 31 is fixedly connected to the end of the oil inlet pipe 2, the oil outlet pipe 32 is fixedly penetrated and arranged at the bottom left side of the shell 31, and the circular filter screen 33 is located inside the shell 31.

[0036] Thus, the oil outlet pipe 32 inputs the used lubricating oil into the interior of the housing 31, and the lubricating oil is filtered by the circular filter 33 through the channel on the first sealed shell 41. The filtered lubricating oil enters the interior of the oil inlet pipe 2 through the channel on the second sealed shell 42, and is then input into the interior of the oil inlet pipe 2 for lubrication.

[0037] like Figure 3As shown, in a preferred embodiment, the separation drive mechanism 4 includes a first sealed shell 41, a second sealed shell 42, a sealing cover 43, a driving motor 44, a first partition 45 and a second partition 46, wherein the first sealed shell 41 and the second sealed shell 42 are jointly sleeved and arranged on the outside of the circular filter screen 33, the first sealed shell 41 and the second sealed shell 42 are both fixedly connected to the inner wall of the outer shell 31, and the first sealed shell 41 and the second sealed shell 42 are both penetrated by a channel, the sealing cover 43 is sleeved and arranged on the outside of the driving motor 44 and is fixedly connected to the second sealed shell 42, the driving motor 44 is fixedly arranged in the middle of the right side of the second sealed shell 42 and its output shaft penetrates the second sealed shell 42 and is fixedly connected to the circular filter screen 33, the first partition 45 is fixedly arranged on the left side of the first sealed shell 41 and is fixedly connected to the inner wall of the outer shell 31, the second partition 46 is fixedly sleeved and arranged on the outside of the sealing cover 43 and is fixedly connected to the second sealed shell 42, and the second partition 46 is fixedly connected to the inner wall of the outer shell 31.

[0038] Thus, the inner cavity of the outer shell 31 is divided into a cleaning chamber located at the top and a filtering chamber located at the bottom by utilizing the first sealed shell 41, the second sealed shell 42, the first partition 45 and the second partition 46. The cleaning chamber provides a passage for the cleaning liquid, and the filtering chamber provides a passage for the lubricating oil to be filtered. In addition, during the filtering process of the lubricating oil, the driving motor 44 drives the circular filter screen 33 to rotate continuously, so that the circular filter screen 33 can be cleaned by the cleaning liquid during the filtering process of the lubricating oil.

[0039] like Figure 2 As shown, in the present disclosure, the cleaning mechanism 5 includes a cleaning liquid inlet pipe 51, a first flow regulating valve 52 and a cleaning liquid outlet pipe 53, wherein the cleaning liquid inlet pipe 51 is fixedly penetrated through the top right side of the outer shell 31, the first flow regulating valve 52 is arranged on the cleaning liquid inlet pipe 51, and the cleaning liquid outlet pipe 53 is fixedly penetrated through the top left side of the outer shell 31.

[0040] Therefore, the displacement of the cleaning liquid can be adjusted by the first flow regulating valve 52, and then the cleaning liquid enters the shell 31 through the cleaning liquid input pipe 51, and then the circular filter screen 33 is flushed through the channel on the second sealed shell 42. The waste liquid after flushing drives the impurities to be discharged through the cleaning liquid output pipe 53. Example 2

[0041] Different from the above-mentioned embodiment, the present device further comprises a second flow regulating valve arranged on the oil outlet pipe 32, a speed counter and a function-variable controller arranged on the plunger pump 1, and the second flow regulating valve and the speed counter are both electrically connected to the function-variable controller.

[0042] In order to utilize the speed counter to detect the strokes of the plunger pump 1, the function-variable controller adjusts the second flow regulating valve according to the strokes of the plunger pump 1, and further adjusts the displacement of the lubricating oil in the oil outlet pipe 32 according to the different strokes of the plunger pump 1, so that the amount of lubricating oil in the plunger pump 1 maintains a relatively constant pressure, thereby extending the service life of the plunger pump 1.

[0043] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A plunger pump pressure lubrication device with adjustable displacement, characterized in that: include: A plunger pump, wherein the top of the plunger pump is connected with an oil inlet pipe; A lubricating oil filtering mechanism, wherein the lubricating oil filtering mechanism is used to filter the lubricating oil output by the plunger pump; A partition driving mechanism, the partition driving mechanism is used to partition the internal chamber of the housing and drive the circular filter to rotate; The separation driving mechanism comprises a first sealed housing, a second sealed housing and a driving motor; The first sealed shell and the second sealed shell are jointly sleeved and arranged outside the circular filter screen, the first sealed shell and the second sealed shell are both fixedly connected to the inner wall of the shell, the first sealed shell and the second sealed shell are both penetrated by a channel, the drive motor is fixedly arranged in the middle of the right side of the second sealed shell, and its output shaft penetrates the second sealed shell and is fixedly connected to the circular filter screen; and A cleaning mechanism is used to clean the circular filter screen.

2. The adjustable displacement plunger pump pressure lubrication device according to claim 1, characterized in that: The lubricating oil filtering mechanism comprises a shell, an oil outlet pipe and a circular filter screen, wherein the shell is fixedly connected to the end of the oil inlet pipe, the oil outlet pipe is fixedly penetrated and arranged at the left bottom of the shell, and the circular filter screen is located inside the shell.

3. The adjustable displacement plunger pump pressure lubrication device according to claim 2, characterized in that: The separation driving mechanism further comprises a sealing cover, which is sleeved and arranged on the outside of the driving motor and fixedly connected to the second sealing shell.

4. The adjustable displacement plunger pump pressure lubrication device according to claim 3, characterized in that: The partition driving mechanism also includes a first partition and a second partition. The first partition is fixedly arranged on the left side of the first sealed shell and fixedly connected to the inner wall of the shell. The second partition is fixedly sleeved and arranged on the outside of the sealing cover and fixedly connected to the second sealed shell. The second partition is fixedly connected to the inner wall of the shell.

5. The adjustable displacement plunger pump pressure lubrication device according to claim 4, characterized in that: The cleaning mechanism includes a cleaning liquid input pipe, a first flow regulating valve and a cleaning liquid output pipe. The cleaning liquid input pipe is fixedly arranged through the top right side of the shell, the first flow regulating valve is arranged on the cleaning liquid input pipe, and the cleaning liquid output pipe is fixedly arranged through the top left side of the shell.

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