CN115182876A

CN115182876A - Plunger pump with impurity filtering function

Info

Publication number: CN115182876A
Application number: CN202210838485.6A
Authority: CN
Inventors: 孙晓浩; 刘琴; 王福红; 武建华; 张武; 刘峰
Original assignee: Jiangsu Kenaili Machinery Manufacturing Co ltd
Current assignee: Jiangsu Kenaili Machinery Manufacturing Co ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-10-14
Anticipated expiration: 2042-07-18
Also published as: CN115182876B

Abstract

The invention discloses a plunger pump with an impurity filtering function, and relates to the technical field of plunger pumps. The axial plunger pump is adjusted to the back, easily makes hydraulic oil remain, influences the heat dissipation of hydraulic oil to plunger and cylinder body, and the problem of the cylinder body lateral wall is hindered to the easy drawing of impurity in the hydraulic oil. The utility model provides a plunger pump with impurity filtering capability, includes the casing, and the interior lower part of casing is equipped with adjustment mechanism, and the rear portion of casing is equipped with pressure protection mechanism, is equipped with filtering mechanism on the pressure protection mechanism, is equipped with switching mechanism on the filtering mechanism. The adjusting mechanism of the hydraulic oil pressure regulating device realizes the change of the working volume, achieves the effect of controlling the transport volume of hydraulic oil, realizes the adjustment of the maximum pressure value in the hydraulic system by combining the pressure protection mechanism, ensures the stable work of the hydraulic system, ensures the two filter plates to alternately and continuously work by matching the filter mechanism and the switching mechanism, prolongs the service life of the device, realizes the long-time stable work effect of the hydraulic system, and realizes the heat dissipation of the rotating disc by the heat dissipation mechanism.

Description

Plunger pump with impurity filtering function

Technical Field

The invention relates to the technical field of plunger pumps, in particular to a plunger pump with an impurity filtering function.

Background

The plunger pump changes a working cavity by utilizing the reciprocating motion of a plunger to realize oil absorption and pressure oil, has the advantages of high rated pressure, compact structure, high efficiency and the like, is widely applied to occasions of high pressure, large flow and the like, and is an important component in a hydraulic system.

When the existing axial plunger pump is used for transporting hydraulic oil, the axial plunger pump is adjusted according to actual needs in a targeted manner, the working volume of the reciprocating movement of the plunger is changed, the position of the plunger is changed at the moment, the plunger cannot move to the lowest end of the cylinder body, so that a section of hydraulic oil is remained in the cylinder body after the working volume is adjusted all the time, in the friction process between the reciprocating movement of the plunger and the cylinder body, heat generated between the reciprocating movement of the plunger and the cylinder body is transmitted into the section of hydraulic oil, the section of hydraulic oil cannot be removed in time, the heat dissipation effect between the plunger and the cylinder body is poor, the service life of the axial plunger pump is influenced, part of impurities are mixed in the hydraulic oil, the impurities enter the cylinder body, the side wall of the cylinder body is easy to be scratched, the matching and the working between the plunger and the cylinder body are influenced, the side wall of the cylinder body is scratched seriously, and the axial plunger pump is damaged and cannot absorb and press oil.

Therefore, in order to meet the current situation, a plunger pump having a function of filtering impurities and a function of preventing liquid residue needs to be developed to meet the requirement of practical use.

Disclosure of Invention

The invention provides a plunger pump with an impurity filtering function and a liquid residue preventing function, and aims to solve the problems that hydraulic oil is easy to remain after an axial plunger pump is adjusted, the heat dissipation of the plunger and a cylinder body by the hydraulic oil is influenced, and the plunger pump is damaged because impurities in the hydraulic oil easily injure the side wall of the cylinder body.

In order to achieve the above object, the technical embodiments of the present invention are realized by: the utility model provides a plunger pump with impurity filtering capability, which comprises a housin, the upper and lower both ends of casing rigid coupling respectively have second apron and first apron, set up two arc holes that are used for the liquid circulation on the second apron, the rigid coupling has the spacing ring in the casing, it is provided with first rotation post to rotate between spacing ring and the second apron, a plurality of cylinder hole has been seted up on the first rotation post, it is provided with the pivot to rotate between first apron and the second apron, the spline housing has been seted up at the middle part of pivot, and the pivot pierces through first rotation post and rather than the rigid coupling, all slide and be equipped with first slip post in a plurality of cylinder hole of first rotation post, the interior lower part of casing is equipped with the adjustment mechanism who is used for adjusting first slip post position, the rear portion of casing is equipped with the pressure protection mechanism that is used for protecting this device normal work, too big pressure protection mechanism triggers adjustment mechanism, prevent that the pressure protection mechanism is too high in the first rotation post, be equipped with the filtering mechanism who is used for filtering impurity, the switching mechanism that is equipped with the fluid flow channel on the filtering mechanism, trigger filtering mechanism work, be used for filtering mechanism alternating continuity filtering mechanism filters impurity, switching mechanism and remote terminal electrical connection.

More preferably, the adjusting mechanism comprises a spline housing, the spline housing is slidably disposed at a spline groove of the rotating shaft, a first spring is fixedly connected between the spline housing and the first rotating column, the first spring is sleeved on the rotating shaft, the upper diameter of the spline housing is larger than the lower diameter of the spline housing, the upper portion and the lower portion of the spline housing are excessively connected through a spherical surface, the spherical surface of the spline housing is rotatably provided with a disc, a plurality of circular holes are uniformly formed in the disc, a plurality of second sliding columns are slidably disposed in the circular holes of the disc respectively, the upper portions of the second sliding columns are fixedly connected with the adjacent first sliding column balls respectively, a first sliding block is slidably disposed on the inner lower portion of the shell, a rotating disc is rotatably disposed on the first sliding block, the upper end of the rotating disc is in contact with the lower ends of the plurality of second sliding columns, the left portion and the right portion of the first sliding block are rotatably disposed with the second rotating column respectively, the left portion and the right portion of the rotating disc are fixedly connected with arc racks respectively, two first straight gears are fixedly connected with two arc racks respectively, the upper end of the first cover plate, each first threaded column is fixedly connected with two second threaded sleeves, and each of the second threaded column is connected with two bevel gears respectively, and each of the rotating block set is connected with the second threaded sleeve.

More preferably, the pressure protection mechanism is including first fixed block, first fixed block rigid coupling is in the rear end of rolling disc, the spout has been seted up on the upper portion of first fixed block, the interior rear portion rigid coupling of casing has the telescopic link, the upper end of telescopic link and the lower extreme contact of first fixed block, the rigid coupling has the second spring between telescopic link and the casing, the second spring housing is on the telescopic link, the upper end rigid coupling of second apron has the set casing, the middle part of set casing is equipped with the baffle, set casing and second apron cooperation form two cavities, respectively with two arc holes of second apron intercommunication, the rear portion of second apron has the catheter through the supporting shoe rigid coupling, be equipped with two convex rings in the catheter, the rear portion intercommunication of catheter and set casing, the fixed pipe has been inlayed at the rear portion of second apron, the upper end and the catheter intercommunication of fixed pipe, the lower part of fixed pipe is located the casing, the lower part slip of fixed pipe is provided with the slip shell, the lower extreme of slip shell slides in the spout of first fixed block, the left end threaded connection of catheter has the second screw thread post, the slip plug is provided with the slip stopper, and the cylinder portion of the one-way compression spring is all seted up in the cylinder spring hole of third screw plug.

More preferably, the filtering mechanism is including leading the liquid shell, lead the front portion of liquid shell intercommunication at the set casing, the rear portion of set casing is equipped with the pipe, be equipped with the division board in leading the liquid shell, it is provided with two second sliding blocks to slide in leading the liquid shell, be equipped with sealed rubber ring on the lateral wall of second sliding block, a leakproofness for increasing the second sliding block and leading between the liquid shell, two second sliding blocks are located the both ends of controlling of leading liquid shell top division board respectively, both ends rigid coupling respectively have a fixed stop around two second sliding blocks, it has the filter to lead the front and back both ends difference sliding connection of liquid shell, two filter circumference symmetries set up, the upper end of leading the liquid shell is equipped with two sets of spacing subassemblies that are used for fixed filter, two sets of spacing subassembly circumference symmetries set up.

More preferably, the limiting component comprises a second fixing block, the second fixing block is fixedly connected to the upper end of the liquid guide shell, a first special-shaped sliding rod is arranged in the second fixing block in a sliding mode, a first tension spring is fixedly connected between the first special-shaped sliding rod and the second fixing block, a cylindrical through hole is formed in the upper end of the filter plate, and the first special-shaped sliding rod is in sliding fit with the cylindrical through hole of the filter plate and used for fixing and limiting the filter plate.

More preferably, the filter net of the filter plate is waved to increase the filtering area.

More preferably, the left end of the second sliding block on the left side is provided with a frustum pyramid hole for increasing the contact area with the liquid.

More preferably, the switching mechanism comprises two cylindrical shells, the two cylindrical shells are respectively communicated with the front side and the rear side of the liquid guide shell, the two cylindrical shells are respectively located at a partition plate of the liquid guide shell, the cylindrical shells are located on the right side of the filter plate, a second special-shaped sliding rod is arranged in each cylindrical shell in a sliding mode, the left ends of the two second special-shaped sliding rods are respectively fixedly connected with a pressure sensor, a second tension spring is fixedly connected between each second special-shaped sliding rod and an adjacent cylindrical shell, the two second tension springs are respectively sleeved on the two second special-shaped sliding rods in a sleeved mode, a connecting rod is fixedly connected to each second special-shaped sliding rod, the two connecting rods are respectively matched with the adjacent first special-shaped sliding rods, a rotating rod is arranged at the lower end of the liquid guide shell in a rotating mode through a fixing column, the rotating rod is in contact fit with the two fixed baffles, the left portions of the two second special-shaped sliding rods are respectively in contact fit with the rotating rod, a protruding column is arranged on the rotating rod, a protruding column is arranged at the lower end of the liquid guide shell, and a third tension spring is arranged between the protruding column of the liquid guide shell and the protruding column.

More preferred, still including heat dissipation mechanism, heat dissipation mechanism sets up the below at the rolling disc, heat dissipation mechanism is used for reducing its during operation temperature, heat dissipation mechanism is including the ring gear, the ring gear rigid coupling is sheathe in the spline, it is provided with two third rotation posts to rotate on the first sliding block, every third rotates all the rigid coupling on the post and has second straight-tooth gear and flabellum, the flabellum is located the top of second straight-tooth gear, two second straight-tooth gears all with the ring gear meshing, the flabellum is used for dispelling the heat to the rolling disc, a plurality of round hole has all been seted up on first sliding block and the first apron.

More preferably, a plurality of ring channels have been seted up to the upper end of rolling disc for reduce the frictional force between rolling disc and the second slip post, a plurality of frustum blind hole has evenly been seted up to the lower extreme of rolling disc, is used for increasing the heat radiating area of rolling disc.

Compared with the prior art, the invention achieves the technical effects that: the invention realizes the change of the working volume by rotating the rotating disc in the adjusting mechanism and changing the reciprocating path of the first sliding column through the connected parts, thereby achieving the effect of controlling the transportation amount of hydraulic oil, and then combining with the adjustment of the second threaded column in the pressure protection mechanism to change the compression degree of the third spring, thereby realizing the adjustment of the maximum pressure value in the hydraulic system, so that the discharge amount of the hydraulic oil is adjusted after the pressure of the hydraulic oil in the hydraulic system exceeds a certain pressure, thereby achieving the purpose of controlling the pressure in the hydraulic system.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a partial cross-sectional view of the present invention.

Fig. 4 is a partial structural schematic diagram of the adjusting mechanism of the present invention.

Fig. 5 is a partial cross-sectional view of an adjustment mechanism of the present invention.

Fig. 6 is an enlarged view of a portion of the adjustment mechanism of the present invention.

Fig. 7 is a schematic perspective view of the pressure protection mechanism of the present invention.

Fig. 8 is a partial cross-sectional view of the pressure protection mechanism of the present invention.

Fig. 9 is a cross-sectional view of the filter mechanism of the present invention.

FIG. 10 is a partial cross-sectional view of the filter mechanism of the present invention.

Fig. 11 is a partial sectional view of the switching mechanism of the present invention.

Fig. 12 is a schematic perspective view of the heat dissipation mechanism of the present invention.

Reference numbers: 1. a shell body, 101, a first cover plate, 102, a second cover plate, 103, a limiting ring, 104, a first rotating column, 105, a rotating shaft, 106, a first sliding column, 2, a spline sleeve, 201, a first spring, 202, a disk, 203, a second sliding column, 204, a first sliding block, 205, a rotating disk, 206, a second rotating column, 207, an arc-shaped rack, 208, a first straight gear, 209, a first threaded column, 210, a threaded sleeve, 3, a first fixing block, 301, a telescopic rod, 302, a second spring, 303, a fixing shell, 3031 and a catheter, 304, a fixed tube, 305, a sliding shell, 306, a second threaded column, 307, a sliding plug, 308, a third spring, 4, a gear ring, 401, a third rotating column, 402, a second spur gear, 403, fan blades, 5, a liquid guide shell, 501, a second sliding block, 502, a fixed baffle, 503, a filter plate, 5031, a second fixed block, 5032, a first special-shaped sliding rod, 5033, a first tension spring, 6, a cylindrical shell, 601, a second special-shaped sliding rod, 602, a second tension spring, 6021, a connecting rod, 603, a rotating rod, 604 and a third tension spring.

Detailed Description

To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure and are not limiting to the present disclosure.

Example 1

A plunger pump with an impurity filtering function is disclosed, referring to fig. 1 and fig. 2, comprising a housing 1, wherein the upper end and the lower end of the housing 1 are respectively connected with a second cover plate 102 and a first cover plate 101 by bolts, two arc-shaped holes for liquid circulation are arranged on the second cover plate 102, a spacing ring 103 is welded in the housing 1, a first rotating column 104 is rotatably connected between the spacing ring 103 and the second cover plate 102, seven cylindrical holes are arranged on the first rotating column 104, the cylindrical holes on the first rotating column 104 are matched with the arc-shaped holes of the second cover plate 102 to realize the transmission of hydraulic oil, a rotating shaft 105 is rotatably connected between the first cover plate 101 and the second cover plate 102, a spline groove is arranged in the middle of the rotating shaft 105, the rotating shaft 105 penetrates through the first rotating column 104 and is fixedly connected with the first rotating column 104, a first sliding column 106 is slidably arranged in the seven cylindrical holes of the first rotating column 104, the first sliding column 106 reciprocates up and down in the first rotating column 104, the first rotating column 104 is driven to rotate by combining the rotating shaft 105, hydraulic oil enters the first rotating column 104 through an arc-shaped hole on the second cover plate 102, the hydraulic oil in the first rotating column 104 is discharged from another arc-shaped hole on the second cover plate 102 under the action of the first sliding column 106, so that the purposes of oil suction and oil pressing are achieved, an adjusting mechanism for adjusting the position of the first sliding column 106 is arranged at the inner lower part of the shell 1, the first sliding column 106 reciprocates to change a path, so that the working volume is controlled to change, and the effect of controlling the transportation volume of the hydraulic oil is achieved, a pressure protecting mechanism for protecting the normal work of the device is arranged at the rear part of the shell 1, the pressure protecting mechanism triggers the adjusting mechanism when the pressure is too high, the pressure in the first rotating column 104 is prevented from being too high, the hydraulic system is prevented from being damaged due to too high pressure, and a filtering mechanism for filtering impurities is arranged on the pressure protecting mechanism, avoid first pivot post 104 to damage the work that influences this device, be equipped with the switching mechanism that is used for changing liquid flow path on the filtering mechanism, switching mechanism triggers filtering mechanism work for filtering mechanism alternating continuity filters impurity, makes this device steady operation for a long time, switching mechanism and remote terminal electrical connection.

The lower part of a rotating shaft 105 is connected with a power device through a belt wheel and a belt, a switching mechanism is electrically connected with a remote terminal, the remote terminal is electrically connected with the power device, a user communicates a filtering mechanism with two pipelines, the device is connected into a hydraulic system, the user starts the power device through the remote terminal, the power device works to drive a first sliding column 106 and an adjusting mechanism to work through the rotating shaft 105, under the action of a pressure protection mechanism and the adjusting mechanism, along with the rotation of the first rotating column 104, the first sliding column 106 reciprocates up and down in the first rotating column 104 simultaneously, hydraulic oil flows in the filtering mechanism to enter the first sliding column 106, the filtering mechanism filters and intercepts impurities in the hydraulic oil at the moment, the impurities are prevented from entering the first rotating column 104 to pull an inner side wall, then the first sliding column 106 works to discharge the hydraulic oil sucked in the first rotating column 104, the hydraulic oil is conveyed to enter a subsequent link, the impurities attached to the filtering mechanism are gradually increased along with the working of the filtering mechanism, at the moment, the first rotating column continuously rotates to trigger the working of the switching mechanism, the switching mechanism to perform switching on-line switching, the switching of the parts of the filtering mechanism, and the filtering mechanism can continuously prompt the user to perform continuous operation of the remote operation of the filtering mechanism.

When the pressure of the discharged hydraulic oil is too high, the discharged hydraulic oil extrudes the pressure protection mechanism to work, the pressure protection mechanism works to trigger the adjusting mechanism to work, so that the adjusting mechanism adjusts the reciprocating travel of the first sliding column 106, the adjustment of the discharge amount of the hydraulic oil is realized, and the hydraulic system and the device are prevented from being damaged due to too high pressure.

Example 2

On the basis of embodiment 1, referring to fig. 2 and 6, the adjusting mechanism includes a spline housing 2, the spline housing 2 is slidably connected to a spline groove of a rotating shaft 105, a first spring 201 is fixedly connected between the spline housing 2 and a first rotating column 104, the first spring 201 is sleeved on the rotating shaft 105, the first spring 201 is used for making the spline housing 2 be at the lowest position, the upper diameter of the spline housing 2 is larger than the lower diameter of the spline housing, the upper and lower parts of the spline housing 2 are excessively connected through a spherical surface, a disk 202 is rotatably arranged at the spherical surface of the spline housing 2, the spherical surface of the spline housing 2 is smooth for reducing the friction between the disk 202, seven circular holes are uniformly formed on the disk 202, second sliding columns 203 are respectively slidably connected in the seven circular holes of the disk 202, the upper parts of the seven second sliding columns 203 are respectively ball-jointed with adjacent first sliding columns 106, a first sliding block 204 is slidably arranged at the inner lower part of the housing 1, the first sliding block 204 is provided with a rotating disc 205 in a rotating manner, the upper end of the rotating disc 205 is contacted with the lower ends of seven second sliding columns 203, under the action of a first spring 201, the disc 202 downwards extrudes the second sliding columns 203 to be tightly attached to the rotating disc 205, due to the ball joint between the second sliding columns 203 and the first sliding columns 106, after the rotating disc 205 rotates, the second sliding columns 203 correspondingly swing, the first sliding columns 106 similarly rotate in the circumferential direction in the rotating process of the first rotating columns 104, under the action of the disc 202 and the rotating disc 205, in the circumferential rotating process of the first sliding columns 106, the first sliding columns 106 reciprocate up and down to convey hydraulic oil, the left and right parts of the first sliding block 204 are respectively provided with second rotating columns 206 in a rotating manner, the left and right parts of the rotating disc 205 are respectively fixedly connected with arc-shaped racks 207, the two second rotating columns 206 are respectively connected with first straight gears 208 through keys, two first straight gears 208 mesh with two arc-shaped racks 207 respectively, the upper end rigid coupling of first apron 101 has two first screw thread posts 209, all threaded connection has thread bush 210 on every first screw thread post 209, two thread bushes 210 all rotate and set up on first sliding block 204, all connect through bevel gear group between two screw bushes 210 and two second rotation posts 206, in the rotating disc 205 rotation process, make first sliding post 106 remove through the part that is connected, realize the change in first sliding post 106 reciprocating motion route, change working volume promptly, reach the change of control hydraulic oil output volume, ensure simultaneously that first sliding post 106 removes and all discharges the hydraulic oil in first rotation post 104 cylinder hole, make new hydraulic oil get into in first rotation post 104, dispel the heat between first sliding post 106 and the first rotation post 104, promote the radiating effect, make this device work more stable.

Referring to fig. 7 and 8, the pressure protection mechanism includes a first fixing block 3, the first fixing block 3 is welded at the rear end of the rotating disc 205, a sliding slot is formed at the upper portion of the first fixing block 3, an expansion rod 301 is embedded at the inner rear portion of the housing 1, the upper end of the expansion rod 301 contacts with the lower end of the first fixing block 3, a second spring 302 is fixedly connected between the expansion rod 301 and the housing 1, the second spring 302 is sleeved on the expansion rod 301 and is acted by the expansion rod 301 and the second spring 302, the first fixing block 3 and the rotating disc 205 are in an inclined state, a fixing shell 303 is welded at the upper end of the second cover plate 102, a partition plate is arranged at the middle portion of the fixing shell 303, the fixing shell 303 and the second cover plate 102 cooperate to form two chambers, which are respectively a liquid inlet chamber and a liquid outlet chamber, the two chambers are respectively communicated with two arc holes of the second cover plate 102, a liquid guide pipe 3031 is embedded at the rear portion of the second cover plate 102, two convex rings are arranged in the catheter 3031, the catheter 3031 is communicated with the rear part of the fixed shell 303, the rear part of the second cover plate 102 is embedded with a fixed tube 304, the upper end of the fixed tube 304 is communicated with the catheter 3031, the lower part of the fixed tube 304 is positioned in the shell 1, the lower part of the fixed tube 304 is connected with a sliding shell 305 in a sliding way, the lower end of the sliding shell 305 slides in a sliding way of the first fixed block 3, under the action of the fixed tube 304 and the sliding shell 305, when the first sliding column 106 drives the parts connected with the first sliding column to rotate together, the rotating disc 205 is always in an inclined state, the left end of the catheter 3031 is in threaded connection with a second threaded column 306, a sliding plug 307 is arranged in the catheter 3031 in a sliding way, the sliding plug 307 is positioned between the two convex rings of the catheter 3031, the convex rings of the catheter 3031 are used for limiting the movement of the sliding plug 307, and a third spring 308 is fixedly connected between the sliding plug 307 and the second threaded column 306, the cylinder hole has been seted up to the right part of sliding plug 307, and all be equipped with the check valve in the cylinder hole of sliding plug 307, second screw post 306 is used for adjusting the compression degree of third spring 308, when the hydraulic oil pressure in the drainage chamber is too big, hydraulic oil extrusion sliding plug 307 removes, receive hydraulic oil to get into fixed pipe 304 through catheter 3031 and extrude slip shell 305 and remove, change the gradient of rolling disc 205, realize the regulation of how much of hydraulic oil discharge amount, avoid the hydraulic oil pressure in the drainage chamber too big, influence hydraulic system's normal work.

Referring to fig. 9 and 10, the filtering mechanism includes a liquid guiding shell 5, the liquid guiding shell 5 is welded on the front portion of the fixing shell 303, the liquid guiding shell 5 is communicated with the fixing shell 303, the rear portion of the fixing shell 303 is provided with a circular tube for flowing hydraulic oil to a subsequent link, a partition plate is arranged in the liquid guiding shell 5, two second sliding blocks 501 are arranged in the liquid guiding shell 5 in a sliding manner, the side walls of the second sliding blocks 501 are provided with sealing rubber rings for increasing the sealing performance between the second sliding blocks 501 and the liquid guiding shell 5, the left end of the second sliding block 501 on the left side is provided with a frustum-shaped hole for increasing the contact area with liquid, the second sliding block 501 is pressed by hydraulic oil, and the second sliding block 501 is sealed with the liquid guiding shell 5 and the partition plate thereon in a fitting manner in a static state, at this moment, hydraulic oil passes through from one side of leading on the liquid shell 5 partition plate position shutoff, two second sliding blocks 501 are located two ends about leading 5 top separation plates of liquid shell respectively, both ends rigid coupling respectively have fixed stop 502 around two second sliding blocks 501, it has filter 503 to lead the both ends sliding connection respectively around the liquid shell 5, two filter 503 circumference symmetries set up, the filter screen on the filter 503 is the wave, be used for increasing filter area, filter the impurity in the hydraulic oil, it is downthehole to avoid impurity to get into the cylinder of first rotation post 104, the filter screen on the filter 503 is the wave simultaneously, increase the hydraulic oil pressure that it can bear, the upper end of leading liquid shell 5 is equipped with two sets of spacing subassemblies that are used for fixed filter 503, two sets of spacing subassembly circumference symmetries set up.

Referring to fig. 10, the limiting assembly includes a second fixing block 5031, the second fixing block 5031 is welded at the upper end of the liquid guiding shell 5, a first special-shaped sliding rod 5032 is slidably connected in the second fixing block 5031, a first tension spring 5033 is installed between the first special-shaped sliding rod 5032 and the second fixing block 5031, a cylindrical through hole is formed at the upper end of the filter plate 503, the first special-shaped sliding rod 5032 is in sliding fit with the cylindrical through hole of the filter plate 503 for fixing and limiting the filter plate 503, a sealing ring is arranged on the side wall of the filter plate 503 to increase the sealing performance between the filter plate 503 and the liquid guiding shell 5, and the filter plate 503 is in a close fit with the liquid guiding shell 5 in an initial state.

Referring to fig. 11, the switching mechanism includes two cylindrical cases 6, two cylindrical cases 6 are disposed, two cylindrical cases 6 are respectively fixed on the front and rear sides of the liquid guiding case 5, and two cylindrical cases 6 are both communicated with the liquid guiding case 5, and two cylindrical cases 6 are both located at the partition plate of the liquid guiding case 5, and the cylindrical case 6 is located on the right side of the filter plate 503 for monitoring the hydraulic oil pressure on the rear side of the filter plate 503, a second special-shaped sliding rod 601 is slidably disposed in each cylindrical case 6, the left ends of the two second special-shaped sliding rods 601 are respectively fixed with a pressure sensor, a second tension spring 602 is respectively fixed between the two second special-shaped sliding rods 601 and the adjacent cylindrical case 6, the two second tension springs 602 are respectively sleeved on the two second special-shaped sliding rods 601, when the impurities on the filter plate 503 are excessive, the hydraulic oil is influenced to pass through the filter plate 503, at this time, the first sliding column 106 works to draw the hydraulic oil, the hydraulic oil pressure on the rear side of the filter plate 503 is reduced, the second special-shaped sliding rods 601 move under the pressure change of the hydraulic oil, each second special-shaped sliding rod 601 is welded with a connecting rod 6021, the two connecting rods 6021 are respectively matched with the adjacent first special-shaped sliding rod 5032, the lower end of the liquid guide shell 5 is rotatably connected with a rotating rod 603 through a fixed column, the rotating rod 603 is in contact fit with the two fixed baffles 502 and is used for controlling the movement of the second sliding block 501, the left parts of the two second special-shaped sliding rods 601 are respectively in contact fit with the rotating rod 603, a convex column is arranged on the rotating rod 603, the lower end of the liquid guide shell 5 is provided with a convex column, a third tension spring 604 is arranged between the convex column of the liquid guide shell 5 and the convex column of the rotating rod 603, the second special-shaped sliding rod 601 moves to drive the connecting rod 6021 to move, the second special-shaped sliding rod 601 extrudes the liquid guide shell 603 to rotate, and after the rotating rod 603 rotates for a certain angle, under the action of the third tension spring 604, the rotating rod 603 swings to press the fixed baffle 502 and the second sliding block 501 to move, so that the filter plates 503 with a large amount of impurities attached are shielded in a sealing manner, and at the moment, hydraulic oil flows into the fixed shell 303 through the other filter plate 503.

The lower part of the rotating shaft 105 is connected with a power device through a belt wheel and a belt, the switching mechanism is electrically connected with a remote terminal, the remote terminal is electrically connected with the power device, a user communicates the filtering mechanism with two pipelines, the device is connected into a hydraulic system, under the initial state, under the action of a second spring 302, a telescopic rod 301 pushes a first fixed block 3, under the action of a fixed pipe 304 and a sliding shell 305, a rotating disc 205 is in an inclined state, under the action of a first spring 201, a spline housing 2 extrudes a disc 202, the disc 202 extrudes a second sliding column 203 to be in contact fit with the rotating disc 205, then the user starts the power device, the power device drives the rotating shaft 105 to rotate through the belt wheel and the belt, the rotating shaft 105 rotates to drive a first rotating column 104 and the spline housing 2 to rotate, the first rotating column 104 rotates in the rotating process, the first rotating column 104 drives the first sliding column 106, the second sliding column 203 and the disc 202 to rotate, because the rotating disc 205 is in an inclined state, the disc 202 keeps rotating in an inclined state, the disc 202 drives the first sliding column 106 to move up and down through the second sliding column 203 in the rotating process, because the first sliding column 106 is located in a cylindrical hole of the first rotating column 104, namely the first sliding column 106 moves up and down in the circumferential direction at the same time, hydraulic oil in the left part of the fixed shell 303 firstly enters the cylindrical hole of the first rotating column 104 through an arc-shaped hole in the second cover plate 102, then the first rotating column 104 rotates, hydraulic oil in the first rotating column enters the right part of the fixed shell 303 through another arc-shaped hole in the second cover plate 102, and high-pressure conveying of the hydraulic oil is achieved.

Along with the hydraulic oil in the fixed shell 303 is gradually pumped away, the hydraulic oil in the liquid guide shell 5 flows into the fixed shell 303, and under the action of the third tension spring 604 in the initial state, the rotating rod 603 swings to extrude the fixed baffle 502 on one side, so that the two second sliding blocks 501 seal the filter plate 503 on the side in the liquid guide shell 5, the hydraulic oil flowing in the liquid guide shell 5 enters the fixed shell 303 through the filter plate 503 on the other side, and at the moment, impurities in the hydraulic oil are attached to the filter screen of the filter plate 503.

Along with the flow of hydraulic oil in the fluid guide shell 5, the filter screen on the filter plate 503 has more and more attached impurities, and at this time, when the first rotating column 104 and the first sliding column 106 perform the above-mentioned cooperation work, the hydraulic oil in the fluid guide shell 5 is extracted, because the filter screen of the filter plate 503 has too many impurities, the hydraulic oil passing through the filter plate 503 is affected, and the hydraulic oil pressure on the right side of the filter plate 503 is reduced, and the hydraulic oil pressure is reduced, so that the second special-shaped sliding rod 601 on this side moves to stretch the second tension spring 602, and the second special-shaped sliding rod 601 moves to gradually press the rotating rod 603, after the rotating rod 603 rotates to a vertical state, under the action of the third tension spring 604, the rotating rod 603 swings to press the fixed baffle plate 502 on the other side, the fixed baffle plate 502 drives the second sliding block 501 to move, so that the second sliding block 501 seals and shields the filter plate 503 attached with a large amount of impurities, and at this time, the hydraulic oil enters the fixed shell 303 through the filter plate 503 without attached impurities to perform the above-mentioned hydraulic oil conveying work.

And in the moving process of the second special-shaped sliding rod 601, the pressure sensor thereon is contacted with the rotating rod 603 and then separated, at this time, the pressure sensor transmits a signal to the remote terminal to remind a user to replace the filter plate 503, because the second sliding block 501 seals the filter plate 503 with impurities, and the second special-shaped sliding rod 601 enables the first special-shaped sliding rod 5032 to be separated from the cylindrical through hole of the filter plate 503 through the connecting rod 6021 in the moving process, the limitation on the filter plate 503 is removed, the user replaces the filter plate 503 with a brand-new filter plate 503 with impurities, because the filter plate 503 is pulled out, the internal pressure of the second special-shaped sliding rod 601 is restored to the initial state under the action of the second tension spring 602, and simultaneously the first special-shaped sliding rod 5032 enters a new cylindrical through hole again, and the above reverse operation is carried out after the replacement is finished, so that the automatic alternate use of the two filter plates 503 is realized.

If the user does not change the filter plates 503 in time, along with the circulation of hydraulic oil, when the filter screens on the two filter plates 503 are blocked seriously, the pressure sensors of the two second special-shaped sliding rods 601 are all contacted with the rotating rod 603, at the moment, the two pressure sensors send instructions to the remote terminal to stop the work of a hydraulic system, at the moment, the user can change the two filter plates 503 in turn, and when the filter plate 503 on a certain side is changed, the user can move the second sliding block 501 to the side to perform the operation.

With the operation of the first rotating column 104 and the first sliding column 106, the hydraulic oil pressure in the circular tube on the liquid guide shell 5 gradually rises, when the hydraulic oil pressure is higher than the elastic force of the second spring 302, at this time, the hydraulic oil presses the sliding plug 307 through the liquid guide tube 3031, at this time, the one-way valve on the sliding plug 307 is closed, the sliding plug 307 gradually moves to the left, so that the sliding plug 307 moves to the left side of the fixed tube 304, at this time, the hydraulic oil enters the fixed tube 304 through the liquid guide tube 3031 to press the sliding shell 305 to move, the sliding shell 305 moves to press the first fixed block 3 to move downwards, and the telescopic rod 301 contracts and presses the second spring 302, the first fixed block 3 moves downwards to rotate the rotating disc 205 to the horizontal state, during the rotation of the rotating disc 205, the rotating disc 205 rotates the second rotating column 206 through the arc-shaped rack 207 and the first straight gear 208, the second rotating column 206 rotates through the driving the threaded sleeve 210 to rotate, because the first threaded sleeve 210 rotates to drive the first sliding block 204 to move upwards together with the parts connected with the first rotating column 104, wherein when the first sliding column 106 moves upwards, the sliding column 104 is close to the upper end of the sliding column 106, and all the sliding column 104 moves out of the sliding cylinder to the upper end of the first rotating cylinder, and the sliding column 106, thereby ensuring that all the hydraulic oil is parallel to be discharged from the upper end of the sliding column.

And the subsequent new hydraulic oil enters the hydraulic system again to dissipate heat of the first sliding column 106 and the first rotating column 104, so that the working stability of the hydraulic system is improved, the change of the inclination angle of the rotating disc 205 enables the disc 202 and the second sliding column 203 to drive the first sliding column 106 to swing, the volume change of the vertical movement of the first sliding columns 106 at the left side and the right side is adjusted, the discharge amount of the hydraulic oil passing through the circular pipe on the liquid guide shell 5 is changed, the hydraulic oil pressure of the circular pipe on the liquid guide shell 5 and the communication part of the circular pipe is controlled, the normal work of the pressure system is ensured, and a user adjusts the compression degree of the second threaded column 306 on the third spring 308 according to the actual condition of the hydraulic system, so that the change of the maximum pressure value in the hydraulic system is realized.

When the pressure of the hydraulic oil in the connection between the upper circular tube of the liquid guiding shell 5 and the upper circular tube is reduced, the sliding plug 307 is moved to return to the initial state under the action of the third spring 308, and at this time, the fixed tube 304 is located below the sliding plug 307, and under the action of the second spring 302, the expansion link 301 returns to the initial state, so that the parts thereon perform the above-mentioned reverse operation, and return to the initial state, and the sliding shell 305 moves upward, so that the hydraulic oil in the sliding shell passes through the one-way valve of the sliding plug 307 and then enters the fixed shell 303 again through the liquid guiding tube 3031.

Example 3

On the basis of embodiment 2, referring to fig. 12, the heat dissipation apparatus further includes a heat dissipation mechanism, the heat dissipation mechanism is disposed below the rotating disc 205, the heat dissipation mechanism is configured to reduce a working temperature of the heat dissipation mechanism, the heat dissipation mechanism includes a gear ring 4, the gear ring 4 is connected to the spline housing 2 through a key, two third rotating columns 401 are rotatably connected to the first sliding block 204, each third rotating column 401 is respectively connected to a second straight gear 402 and a fan blade 403 through a key, the fan blade 403 is located above the second straight gear 402, a fan-shaped hole is formed in the second straight gear 402 for air circulation, the two second straight gears 402 are both engaged with the gear ring 4, the fan blade 403 is configured to dissipate heat from the rotating disc 205, so that the second sliding column 203 stably rotates on the rotating disc 205, a plurality of circular holes are formed in the first sliding block 204 and the first cover plate 101, so that air flows to take heat away from the rotating disc 205, a plurality of annular grooves are formed in an upper end of the rotating disc 205, and are configured to reduce a friction force between the rotating disc 205 and the second sliding column 203, a plurality of frustum holes are uniformly formed in a lower end of the rotating disc 205, and configured to increase a blind hole of the rotating disc 205, thereby ensuring a stability of the rotating disc 205 and improving a working area of the rotating disc 205.

Spline housing 2 drives third rotation post 401 and flabellum 403 through ring gear 4 and second straight-tooth gear 402 and rotates at the rotation in-process, and flabellum 403 rotates and makes the gaseous round hole through first sliding block 204 and second apron 102 in the casing 1 flow, carries out wind-force heat dissipation to rolling disc 205, because the frustum blind hole setting of rolling disc 205 lower extreme promotes the radiating effect of rolling disc 205, promotes the job stabilization nature of this device.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention.

Claims

1. A plunger pump with impurity filtering function comprises a shell (1), wherein a second cover plate (102) and a first cover plate (101) are fixedly connected to the upper end and the lower end of the shell (1) respectively, two arc-shaped holes for liquid circulation are formed in the second cover plate (102), a limiting ring (103) is fixedly connected in the shell (1), a first rotating column (104) is rotatably arranged between the limiting ring (103) and the second cover plate (102), a plurality of cylindrical holes are formed in the first rotating column (104), a rotating shaft (105) is rotatably arranged between the first cover plate (101) and the second cover plate (102), a spline groove is formed in the middle of the rotating shaft (105), and the rotating shaft (105) penetrates through the first rotating column (104) and is fixedly connected with the first rotating column (104), the device is characterized by also comprising an adjusting mechanism, wherein the adjusting mechanism is arranged at the inner lower part of the shell (1), the adjusting mechanism is used for adjusting the position of the first sliding column (106), a pressure protection mechanism used for protecting the normal work of the device is arranged at the rear part of the shell (1), the pressure protection mechanism triggers the adjusting mechanism due to overlarge pressure to prevent the overhigh pressure in the first rotating column (104), a filtering mechanism used for filtering impurities is arranged on the pressure protection mechanism, a switching mechanism used for replacing a liquid flow channel is arranged on the filtering mechanism, the switching mechanism triggers the filtering mechanism to work and is used for filtering the impurities alternately and continuously, the switching mechanism is electrically connected to the remote terminal.

2. The plunger pump with the impurity filtering function according to claim 1, wherein the adjusting mechanism comprises a spline housing (2), the spline housing (2) is slidably disposed at a spline groove of the rotating shaft (105), a first spring (201) is fixedly connected between the spline housing (2) and the first rotating column (104), the first spring (201) is sleeved on the rotating shaft (105), the upper diameter of the spline housing (2) is larger than the lower diameter of the spline housing, the upper portion and the lower portion of the spline housing (2) are excessively connected through a spherical surface, a circular disc (202) is rotatably disposed at the spherical surface of the spline housing (2), a plurality of circular holes are uniformly formed in the circular disc (202), second sliding columns (203) are slidably disposed in the plurality of circular holes of the circular disc (202), the upper portions of the plurality of second sliding columns (203) are respectively connected with adjacent first sliding columns (106) through balls, the inner lower portion of the housing (1) is slidably disposed with first sliding blocks (204), a rotating disc (205) is rotatably disposed on the first sliding block (204), the upper portion of the rotating disc (205) is in contact with the plurality of second sliding columns (203), two rotating columns (206) which are fixedly connected with left and right portions of the rotating columns (206), two rotating blocks (206) which are fixedly connected with two rotating columns (206) which are fixedly connected with left and right rotating columns (206), two first straight gears (208) mesh with two arc racks (207) respectively, and the upper end rigid coupling of first apron (101) has two first screw thread posts (209), and all threaded connection has thread bush (210) on every first screw thread post (209), and two thread bushes (210) all rotate and set up on first sliding block (204), and two thread bushes (210) and two second rotate and all connect through bevel gear group between post (206).

3. The plunger pump with the impurity filtering function as claimed in claim 2, wherein the pressure protection mechanism comprises a first fixed block (3), the first fixed block (3) is fixedly connected to the rear end of the rotating disc (205), a sliding groove is formed in the upper portion of the first fixed block (3), an expansion link (301) is fixedly connected to the inner rear portion of the housing (1), the upper end of the expansion link (301) contacts with the lower end of the first fixed block (3), a second spring (302) is fixedly connected between the expansion link (301) and the housing (1), the second spring (302) is sleeved on the expansion link (301), a fixed shell (303) is fixedly connected to the upper end of the second cover plate (102), a partition plate is arranged in the middle of the fixed shell (303), the fixed shell (303) and the second cover plate (102) are matched to form two chambers, the two chambers are respectively communicated with two arc holes of the second cover plate (102), the rear portion of the second cover plate (102) is provided with a supporting block (3031), two convex rings are arranged in the catheter (3031), the fixed shell (303) and the fixed shell (303), the rear portion of the fixed shell (304) is communicated with the lower portion of the fixed tube (304) and the catheter tube (304) is arranged in the fixed tube (304), the lower extreme of slip shell (305) slides in the spout of first fixed block (3), the left end threaded connection of catheter (3031) has second screw thread post (306), it is provided with slip stopper (307) to slide in catheter (3031), and slip stopper (307) are located between two bulge loops of catheter (3031), the rigid coupling has third spring (308) between slip stopper (307) and second screw thread post (306), the cylinder hole has been seted up to the right part of slip stopper (307), and all be equipped with the check valve in the cylinder hole of slip stopper (307), second screw thread post (306) are used for adjusting the compression degree of third spring (308).

4. The plunger pump with the impurity filtering function as claimed in claim 3, wherein the filtering mechanism comprises a liquid guiding shell (5), the liquid guiding shell (5) is communicated with the front part of the fixed shell (303), the rear part of the fixed shell (303) is provided with a circular tube, a partition plate is arranged in the liquid guiding shell (5), two second sliding blocks (501) are arranged in the liquid guiding shell (5) in a sliding manner, sealing rubber rings are arranged on the side walls of the second sliding blocks (501) and used for increasing the sealing performance between the second sliding blocks (501) and the liquid guiding shell (5), the two second sliding blocks (501) are respectively arranged at the left end and the right end of the partition plate on the liquid guiding shell (5), the front end and the rear end of each second sliding block (501) are respectively fixedly connected with a fixed baffle (502), the front end and the rear end of the liquid guiding shell (5) are respectively and slidably connected with a filter plate (503), the two filter plates (503) are circumferentially symmetrically arranged, and two sets of limiting assemblies are circumferentially symmetrically arranged at the upper end of the liquid guiding shell (5).

5. The plunger pump with the impurity filtering function according to claim 4, wherein the limiting component comprises a second fixing block (5031), the second fixing block (5031) is fixedly connected to the upper end of the liquid guide shell (5), a first special-shaped sliding rod (5032) is slidably arranged in the second fixing block (5031), a first tension spring (5033) is fixedly connected between the first special-shaped sliding rod (5032) and the second fixing block (5031), a cylindrical through hole is formed in the upper end of the filter plate (503), and the first special-shaped sliding rod (5032) is in sliding fit with the cylindrical through hole of the filter plate (503) and used for fixing and limiting the filter plate (503).

6. The plunger pump with impurity filtering function according to claim 4, wherein the filter net of the filter plate (503) is formed in a wave shape for increasing a filtering area.

7. The plunger pump with the function of filtering impurities as claimed in claim 4, wherein the left end of the second sliding block (501) on the left side is provided with a frustum pyramid-shaped hole for increasing the contact area with the liquid.

8. The plunger pump with the function of filtering impurities as claimed in claim 4, wherein the switching mechanism comprises two cylindrical shells (6), the two cylindrical shells (6) are respectively communicated with the front side and the rear side of the liquid guide shell (5), the two cylindrical shells (6) are both arranged at the partition plate of the liquid guide shell (5), the cylindrical shells (6) are arranged at the right side of the filter plate (503), a second special-shaped sliding rod (601) is slidably arranged in each cylindrical shell (6), the left ends of the two second special-shaped sliding rods (601) are respectively and fixedly connected with a pressure sensor, a second tension spring (602) is respectively and fixedly connected between each two second special-shaped sliding rods (601) and the adjacent cylindrical shell (6), two second extension springs (602) are respectively sleeved on two second special-shaped sliding rods (601), each second special-shaped sliding rod (601) is fixedly connected with a connecting rod (6021), the two connecting rods (6021) are respectively matched with the adjacent first special-shaped sliding rod (5032), the lower end of the liquid guide shell (5) is provided with a rotating rod (603) in a rotating mode through a fixed column, the rotating rod (603) is in contact fit with the two fixed baffle plates (502), the left parts of the two second special-shaped sliding rods (601) are respectively in contact fit with the rotating rod (603), a convex column is arranged on the rotating rod (603), the lower end of the liquid guide shell (5) is provided with a convex column, and a third extension spring (a third extension spring) (between the convex column of the liquid guide shell (5) and the convex column of the rotating rod (603) 604).

9. The plunger pump with the impurity filtering function as claimed in claim 2, characterized by further comprising a heat dissipation mechanism, wherein the heat dissipation mechanism is arranged below the rotating disc (205) and used for reducing the working temperature of the plunger pump, the heat dissipation mechanism comprises a gear ring (4), the gear ring (4) is fixedly connected to the spline housing (2), two third rotating columns (401) are rotatably arranged on the first sliding block (204), each third rotating column (401) is fixedly connected to a second straight gear (402) and a fan blade (403), the fan blade (403) is arranged above the second straight gear (402), the two second straight gears (402) are respectively engaged with the gear ring (4), the fan blade (403) is used for dissipating heat of the rotating disc (205), and a plurality of round holes are respectively formed in the first sliding block (204) and the first cover plate (101).

10. The plunger pump with the impurity filtering function as claimed in claim 2, wherein the upper end of the rotating disc (205) is provided with a plurality of annular grooves for reducing the friction between the rotating disc (205) and the second sliding column (203), and the lower end of the rotating disc (205) is uniformly provided with a plurality of frustum blind holes for increasing the heat dissipation area of the rotating disc (205).