阅读说明：本技术 一种高压泵 (High-pressure pump ) 是由 陈阳 于 2020-07-24 设计创作，主要内容包括：本发明涉及一种通用机械,具体说是高压泵。它包括泵头和筒状的泵体,泵头与泵体相连,且泵体的筒底朝向泵头。所述泵体的筒底上沿其周向均布有活塞杆,活塞杆均沿泵体的轴向布置,活塞杆的两端分别从泵体的筒底两侧伸出,活塞杆与泵体间呈滑动密封状配合,位于泵体外的活塞杆一端均与泵头相连。其特点是所述泵体内同心设置有转轴,转轴与泵体间呈转动状配合,转轴上固定有斜盘,位于泵体内的那段活塞杆内侧壁均有豁口,活塞杆均通过豁口卡在斜盘上,斜盘的外边沿与豁口的底部间均有间隙,斜盘与豁口的两个端面间均有球头,斜盘对应的球头一侧有平板,平板与斜盘相抵。该高压泵的使用寿命较长,泵水压力较高。(The invention relates to a general machine, in particular to a high-pressure pump. The pump comprises a pump head and a cylindrical pump body, wherein the pump head is connected with the pump body, and the bottom of the pump body faces the pump head. The cylinder bottom of the pump body is uniformly provided with piston rods along the circumferential direction, the piston rods are arranged along the axial direction of the pump body, two ends of each piston rod extend out from two sides of the cylinder bottom of the pump body respectively, the piston rods are matched with the pump body in a sliding sealing manner, and one end of each piston rod positioned outside the pump body is connected with the pump head. The swash plate is characterized in that a rotating shaft is concentrically arranged in the pump body, the rotating shaft is in rotating fit with the pump body, a swash plate is fixed on the rotating shaft, openings are formed in the inner side walls of the piston rods located in the pump body, the piston rods are clamped on the swash plate through the openings, a gap is formed between the outer edge of the swash plate and the bottom of the opening, ball heads are arranged between the swash plate and two end faces of the opening, a flat plate is arranged on one side of each ball head corresponding to the swash plate, and the flat plate abuts against the swash plate. The high-pressure pump has the advantages of long service life and high water pumping pressure.)

1. A high-pressure pump comprises a pump head (2) and a cylindrical pump body (5), wherein the pump head (2) is connected with the pump body (5), and the cylindrical bottom of the pump body (5) faces the pump head (2); piston rods are uniformly distributed on the cylinder bottom of the pump body (5) along the circumferential direction of the cylinder bottom, the piston rods are all arranged along the axial direction of the pump body (5), two ends of each piston rod respectively extend out of two sides of the cylinder bottom of the pump body (5), the piston rods are matched with the pump body (5) in a sliding sealing manner, and one end of each piston rod positioned outside the pump body (5) is connected with the pump head (2); the novel oil pump is characterized in that a rotating shaft (8) is concentrically arranged in the pump body (5), the rotating shaft (8) is matched with the pump body (5) in a rotating mode, a swash plate (23) is fixed on the rotating shaft (8), gaps (22) are formed in the inner side wall of the section of the piston rod located in the pump body (5), the piston rod is clamped on the swash plate (23) through the gaps (22), gaps are formed between the outer edge of the swash plate (23) and the bottom of the gaps (22), a ball head (24) is arranged between the swash plate (23) and two end faces of the gaps (22), one side of the ball head (24) corresponding to the swash plate (23) is provided with a flat plate, and the flat plate is abutted to the swash plate (23.

2. The high-pressure pump according to claim 1, characterized in that the pump heads (2) corresponding to the piston rods each have an axial through hole (16), one end of the piston rod located outside the pump body (5) extends into the axial through hole (16), the piston rod and the axial through hole (16) are in sliding seal fit, one end of the axial through hole (16) far away from the pump body (5) is provided with a water inlet check valve (15), and the flow direction of the water inlet check valve (15) is from one end of the axial through hole (16) far away from the pump body (5) to the other end; one end of the pump head (2) far away from the pump body (5) is provided with a central water outlet hole (11), the central water outlet hole (11) is a blind hole, communication holes (19) are formed between the axial through hole (16) between the water inlet check valve (15) and the piston rod and the central water outlet hole (11), water outlet check valves (18) are arranged in the communication holes (19), and the flow direction of the water outlet check valves (18) is from the axial through hole (16) to the central water outlet hole (11).

3. A high-pressure pump according to claim 2, characterized in that the communication holes (19) are arranged in the radial direction of the pump head (2), and one end of the communication hole (19) is communicated with the central water outlet hole (11), the other end of the communication hole (19) penetrates the axial through hole (16) and is located on the outer circular surface of the pump head (2), the plunger (3) is arranged in the outer end of the communication hole (19), and the water outlet check valve (18) is located in the communication hole (19) between the axial through hole (16) and the central water outlet hole (11).

4. The high-pressure pump according to claim 2, characterized in that an annular recess (17) is concentrically arranged at one end of the pump head (2) far away from the pump body (5), one end of the axial through hole (16) far away from the pump body (5) is located on the bottom of the annular recess (17), a front cover (1) is arranged outside the annular recess (17), the front cover (1) is fixed on the pump head (2), a main water inlet (13) is arranged on the front cover (1) corresponding to the annular recess (17), and a abdicating opening (12) is arranged on the front cover (1) corresponding to the central water outlet (11).

5. The high-pressure pump according to claim 4, characterized in that the pump head (2) is provided with axial connecting holes along the circumferential direction, the axial connecting holes are located between the bottom of the annular recess (17) and the end of the pump head (2) close to the pump body (5), the bottom of the pump body (5) corresponding to the axial connecting holes is provided with bolt (14) holes, and the axial connecting holes and the corresponding bolt (14) holes are provided with bolts (14), so that the pump head (2) and the pump body (5) are connected together; the section of bolt (14) between the pump head (2) and the pump body (5) is sleeved with a support sleeve (4), one end of the support sleeve (4) is abutted against the pump head (2), and the other end of the support sleeve is abutted against the pump body (5), so that a space is reserved between the pump head (2) and the pump body (5).

6. The high-pressure pump according to claim 2, characterized in that the piston rod comprises a movable rod (9) and a piston head (10) which are concentrically arranged, the movable rod (9) is located on the pump body (5), two ends of the movable rod (9) respectively extend out from two sides of the cylinder bottom of the pump body (5), a first sealing ring (20) is arranged between the movable rod (9) and the pump body (5) so that the movable rod (9) and the pump body (5) are in sliding sealing fit, and the notch (22) is located on the movable rod (9); the piston head (10) is fixed at one end of a movable rod (9) positioned outside the pump body (5), one end of the piston head (10) far away from the movable rod (9) is positioned in a corresponding axial through hole (16), and a second sealing ring (21) is arranged between the piston head (10) and the axial through hole (16) so that the piston head (10) is matched with the axial through hole (16) in a sliding sealing manner.

7. The high pressure pump as recited in claim 1, characterized in that said bulb (24) is hemispherical, the plane of the hemisphere being said flat plate.

8. The high-pressure pump according to claim 6, characterized in that the two end faces of the gap (22) are provided with support pillars (25), the axes of the support pillars (25) are parallel to the axis of the piston rod, one end of each support pillar (25) far away from the end face of the gap (22) is provided with a support pit (29), each support pit (29) is spherical, and the spherical side of the ball head (24) is positioned in each support pit (29).

9. The high-pressure pump according to any one of claims 1 to 8, characterized in that the cylinder opening of the pump body (5) is provided with a rear cover (6), the periphery of the rear cover (6) is in sealing fixed fit with the periphery of the cylinder opening of the pump body (5), the rear cover (6) is provided with a central through hole, the inner side wall of the outer end of the central through hole is provided with an internal thread, an adjusting threaded sleeve (7) is connected in the outer end of the central through hole in a threaded manner, a third sealing ring (27) is arranged between the adjusting threaded sleeve (7) and the central through hole, one end of the rotating shaft (8) penetrates through the adjusting threaded sleeve (7) to extend out, a fourth sealing ring (28) is arranged between the rotating shaft (8) and the adjusting threaded sleeve (7), the rotating shaft (8) and the adjusting threaded sleeve (7) are matched in a rotating sealing mode, a first annular boss (801) is arranged on the section of the rotating shaft (8) on the inner side of the adjusting threaded sleeve (7), and a first taper bearing (26) is arranged on the section of the rotating shaft (8) between the first annular boss (801) and the adjusting threaded sleeve (7); there is central pit on the internal surface of the pump body (5) barrel head, and pivot (8) one end that is close to the pump body (5) barrel head has second annular boss (802), and that section pivot (8) between second annular boss (802) and the pump body (5) barrel head is located central pit, and pivot (8) are gapped with the bottom of the pit of central pit, have second taper bearing (27) on the bottom of the pit of central pit and that section pivot (8) between second annular boss (802).

Technical Field

The invention relates to a general machine, in particular to a high-pressure pump for pumping liquid. It is especially suitable for high pressure cleaning pump and mining emulsion pump.

Background

Chinese patent application No. 2019215277049 discloses a high pressure pump. It mainly comprises a pump head and a shell. There is the cylindrical cam in the casing, be axial fixity between cylindrical cam and casing, the cooperation of circumferential direction form, be provided with the piston rod along cylindrical cam's circumference in the casing in the cylindrical cam outside, the piston rod all arranges along cylindrical cam's axial, the one end of piston rod all passes the casing and stretches out outward, be the cooperation of axial activity form along the piston rod between piston rod and casing, it all has the stopper to be served on the piston rod one that is located the casing, stopper one side of keeping away from the piston rod all is located cylindrical cam's cam groove, there is the mandrel bearing on stopper one side that is located the cylindrical cam recess. One end of the piston rod outside the shell is connected with the pump head. The high-pressure pump drives a piston rod to reciprocate by using a cylindrical cam. When the cylindrical cam works, the radial bearing is in point or line contact with the cam groove, the contact area is small, and the pressure is high and the abrasion is fast under the same pressure. Thus, the service life of such a high-pressure pump is short. Also, since the abrasion is fast, such a high pressure pump needs to control the maximum rotation speed, resulting in a low pumping pressure.

Disclosure of Invention

The invention aims to provide a high-pressure pump which is long in service life and high in pumping water pressure.

In order to solve the problems, the following technical scheme is provided:

the high-pressure pump comprises a pump head and a cylindrical pump body, wherein the pump head is connected with the pump body, and the cylindrical bottom of the pump body faces the pump head. The cylinder bottom of the pump body is uniformly provided with piston rods along the circumferential direction, the piston rods are arranged along the axial direction of the pump body, two ends of each piston rod extend out from two sides of the cylinder bottom of the pump body respectively, the piston rods are matched with the pump body in a sliding sealing manner, and one end of each piston rod positioned outside the pump body is connected with the pump head. The swash plate is characterized in that a rotating shaft is concentrically arranged in the pump body, the rotating shaft is in rotating fit with the pump body, a swash plate is fixed on the rotating shaft, openings are formed in the inner side walls of the piston rods located in the pump body, the piston rods are clamped on the swash plate through the openings, a gap is formed between the outer edge of the swash plate and the bottom of the opening, ball heads are arranged between the swash plate and two end faces of the opening, a flat plate is arranged on one side of each ball head corresponding to the swash plate, and the flat plate abuts against the swash plate.

The pump head that the piston rod corresponds all has the axial through hole, and the piston rod one end that is located the pump body outside stretches into in the axial through hole, and is the sliding seal form cooperation between piston rod and the axial through hole, has the check valve of intaking in the axial through hole one end of keeping away from the pump body, and the flow direction of the check valve of intaking is from the axial through hole one end to the other end of keeping away from the pump body. The pump head end far away from the pump body is provided with a central water outlet hole which is a blind hole, communication holes are formed between the axial through hole between the water inlet one-way valve and the piston rod and the central water outlet hole, water outlet one-way valves are arranged in the communication holes, and the flow direction of the water outlet one-way valves is from the axial through hole to the central water outlet hole.

The intercommunicating pore all arranges along the radial of pump head, and intercommunicating pore one end is linked together with central apopore, and the other end of intercommunicating pore runs through the outer disc that transversely is located the pump head of axial through-hole, all has the plunger in the outer end of intercommunicating pore, the play water check valve is located that section intercommunicating pore between axial through-hole and central apopore.

Keep away from one of the pump head of the pump body and serve and be provided with annular pit with one heart, keep away from the axial through-hole one end of the pump body and all be located the pot head of annular pit, the outside of annular pit is provided with the protecgulum, and the protecgulum is fixed on the pump head, has total water inlet on the protecgulum that annular pit corresponds, lets the position mouth on the protecgulum that the central apopore corresponds.

Axial connecting holes are uniformly distributed on the pump head along the circumferential direction of the pump head, the axial connecting holes are located between the bottom of the annular pit and one end of the pump head close to the pump body, bolt holes are formed in the bottom of the pump body barrel corresponding to the axial connecting holes, and bolts are arranged between the axial connecting holes and the corresponding bolt holes, so that the pump head and the pump body are connected together. The section of bolt between the pump head and the pump body is sleeved with a support sleeve, one end of the support sleeve is abutted against the pump head, and the other end of the support sleeve is abutted against the pump body, so that a space is reserved between the pump head and the pump body.

The piston rod comprises a movable rod and a piston head which are concentrically arranged, the movable rod is positioned on the pump body, two ends of the movable rod respectively extend out of two sides of the cylinder bottom of the pump body, a first sealing ring is arranged between the movable rod and the pump body, so that the movable rod and the pump body are matched in a sliding sealing manner, and the opening is positioned on the movable rod; the piston head is fixed on one end of the movable rod positioned outside the pump body, one end of the piston head far away from the movable rod is positioned in the corresponding axial through hole, and a second sealing ring is arranged between the piston head and the axial through hole, so that the piston head and the axial through hole are matched in a sliding sealing manner.

The ball head is in a hemisphere shape, and the plane of the hemisphere is the flat plate.

The support columns are arranged on the two end faces of the opening, the axes of the support columns are parallel to the axis of the piston rod, a support pit is arranged at one end of each support column far away from the end face of the opening, the support pits are spherical, and the spherical side of the ball head is located in the support pits.

The utility model discloses a pump body, including pump body, pump body barrel head, back lid, regulation swivel nut, first annular boss, first taper bearing, back lid and regulation swivel nut, the rear cover of pump body has the back lid, and the back lid is sealed fixed form cooperation all around with around the pump body barrel head, and the back is covered and is had central through-hole, and processing has the internal thread on the inside wall of central through-hole outer end, and threaded connection has the regulation swivel nut in the outer end of central through-hole, has the third sealing washer between regulation swivel nut and central through-hole, the one end of pivot is passed and is adjusted the swivel nut and stretch out outside, has the fourth sealing washer between pivot and regulation swivel nut, is the sealed form cooperation of rotation between pivot and regulation swivel nut, adjusts the inboard section. The inner surface of the cylinder bottom of the pump body is provided with a central pit, one end of a rotating shaft close to the cylinder bottom of the pump body is provided with a second annular boss, the section of the rotating shaft between the second annular boss and the cylinder bottom of the pump body is positioned in the central pit, a gap is reserved between the rotating shaft and the pit bottom of the central pit, and a second taper bearing is arranged on the section of the rotating shaft between the pit bottom of the central pit and the second annular boss.

By adopting the scheme, the method has the following advantages:

the rotating shaft is concentrically arranged in the pump body of the high-pressure pump, the rotating shaft is in rotating fit with the pump body, the rotating shaft is fixedly provided with the swash plate, the inner side walls of the piston rods positioned in the pump body are provided with openings, the piston rods are clamped on the swash plate through the openings, a gap is formed between the outer edge of the swash plate and the bottom of the opening, a ball head is arranged between the swash plate and two end faces of the opening, a flat plate is arranged on one side of the ball head corresponding to the swash plate, and the flat plate is abutted to the swash plate. The high-pressure pump utilizes the swash plate to drive the piston rod to reciprocate, the swash plate is in surface contact with the piston rod through the flat plate, compared with the point or line contact of a cylindrical cam in the background technology, the contact area is greatly increased, and the high-pressure pump has the advantages of small pressure and low possibility of abrasion under the same pressure. Thus, the service life of such a high-pressure pump is long. Moreover, the high-pressure pump is not easy to wear, so that the maximum rotating speed of the high-pressure pump can be greatly increased, and the pumping water pressure of the high-pressure pump is higher.

Drawings

FIG. 1 is a schematic view of the high pressure pump of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic view of the structure of FIG. 2 after the front cover is hidden;

FIG. 4 is a schematic sectional view taken along line A-A of FIG. 2;

FIG. 5 is a schematic view of the connection of the swash plate to the piston rods in the high pressure pump of the present invention;

FIG. 6 is an exploded view of the high pressure pump of the present invention;

fig. 7 is an exploded view of the movable rod and ball of the high pressure pump of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 7, the high pressure pump of the present invention includes a pump head 2 and a cylindrical pump body 5, wherein the pump head 2 is connected to the pump body 5, and a cylindrical bottom of the pump body 5 faces the pump head 2. The cylinder bottom of the pump body 5 is uniformly provided with piston rods along the circumferential direction, the piston rods are all arranged along the axial direction of the pump body 5, two ends of each piston rod respectively extend out from two sides of the cylinder bottom of the pump body 5, the piston rods are matched with the pump body 5 in a sliding sealing manner, and one end of each piston rod positioned outside the pump body 5 is connected with the pump head 2. The utility model discloses a swash plate pump, including pump body 5, be provided with pivot 8 in the pump body 5 with one heart, be the cooperation of rotating form between pivot 8 and the pump body 5, be fixed with sloping cam plate 23 on the pivot 8, that section piston rod inside wall that is located the pump body 5 all has opening 22, the piston rod all blocks on sloping cam plate 23 through opening 22, it is gapped all between the outer border of sloping cam plate 23 and the bottom of opening 22, all there is bulb 24 between two terminal surfaces of sloping cam plate 23 and opening 22, there is the flat board bulb 24 one side that sloping cam plate 23 corresponds, dull and stereotyped 23 counterbalance with.

The pump head 2 that the piston rod corresponds all has axial through hole 16, and the piston rod one end that is located outside the pump body 5 stretches into in the axial through hole 16, and is the sliding seal form cooperation between piston rod and the axial through hole 16, has into check valve 15 in the axial through hole 16 one end of keeping away from the pump body 5, and the flow direction of intaking check valve 15 is from the axial through hole 16 one end to the other end of keeping away from the pump body 5. A central water outlet hole 11 is formed in one end, far away from the pump body 5, of the pump head 2, the central water outlet hole 11 is a blind hole, communication holes 19 are formed between the axial through hole 16 between the water inlet check valve 15 and the piston rod and the central water outlet hole 11, water outlet check valves 18 are arranged in the communication holes 19, and the flow direction of the water outlet check valves 18 is from the axial through hole 16 to the central water outlet hole 11.

In order to facilitate the installation of the water outlet check valve 18, the communication holes 19 are all arranged along the radial direction of the pump head 2, one end of each communication hole 19 is communicated with the central water outlet hole 11, the other end of each communication hole 19 penetrates through the axial through hole 16 and is transversely positioned on the outer circular surface of the pump head 2, the plunger 3 is arranged in the outer end of each communication hole 19, and the water outlet check valve 18 is positioned in the communication hole 19 between the axial through hole 16 and the central water outlet hole 11.

In order to facilitate water inflow, one end of the pump head 2, far away from the pump body 5, is concentrically provided with an annular pit 17, one end of the axial through hole 16, far away from the pump body 5, is located at the bottom of the annular pit 17, the outer side of the annular pit 17 is provided with a front cover 1, the front cover 1 is fixed on the pump head 2, the front cover 1 corresponding to the annular pit 17 is provided with a main water inlet 13, and the front cover 1 corresponding to the central water outlet 11 is provided with a abdicating opening 12.

In order to guarantee the distance between the pump head 2 and the pump body 5, axial connecting holes are uniformly distributed on the pump head 2 along the circumferential direction of the pump head, the axial connecting holes are located between the bottom of the annular concave pit 17 and one end of the pump head 2 close to the pump body 5, bolt 14 holes are formed in the barrel bottom of the pump body 5 corresponding to the axial connecting holes, and bolts 14 are arranged between the axial connecting holes and the corresponding bolt 14 holes, so that the pump head 2 is connected with the pump body 5. The section of bolt 14 between the pump head 2 and the pump body 5 is sleeved with a support sleeve 4, one end of the support sleeve 4 is abutted against the pump head 2, and the other end of the support sleeve is abutted against the pump body 5, so that a space is reserved between the pump head 2 and the pump body 5.

The piston rod comprises a movable rod 9 and a piston head 10 which are concentrically arranged, the movable rod 9 is positioned on the pump body 5, two ends of the movable rod 9 respectively extend out from two sides of the cylinder bottom of the pump body 5, a first sealing ring 20 is arranged between the movable rod 9 and the pump body 5, so that the movable rod 9 and the pump body 5 are matched in a sliding sealing manner, and the notch 22 is positioned on the movable rod 9; the piston head 10 is fixed on one end of the movable rod 9 positioned outside the pump body 5, one end of the piston head 10 far away from the movable rod 9 is positioned in the corresponding axial through hole 16, and a second sealing ring 21 is arranged between the piston head 10 and the axial through hole 16, so that the piston head 10 and the axial through hole 16 are in sliding sealing fit.

The ball head 24 is shaped like a hemisphere, and the plane of the hemisphere is the flat plate.

Support columns 25 are arranged on two end faces of the opening 22, the axes of the support columns 25 are parallel to the axis of the piston rod, support pits 29 are arranged at one ends of the support columns 25 far away from the end face of the opening 22, the support pits 29 are spherical, and the spherical side of the ball head 24 is located in the support pits 29.

In order to adjust the tightness, a rear cover 6 is arranged at the barrel opening of the pump body 5, the periphery of the rear cover 6 is in sealed fixed fit with the periphery of the barrel opening of the pump body 5, a central through hole is formed in the rear cover 6, an internal thread is processed on the inner side wall of the outer end of the central through hole, an adjusting screw sleeve 7 is connected to the outer end of the central through hole in a threaded manner, a third sealing ring 27 is arranged between the adjusting screw sleeve 7 and the central through hole, one end of a rotating shaft 8 penetrates through the adjusting screw sleeve 7 to extend out, a fourth sealing ring 28 is arranged between the rotating shaft 8 and the adjusting screw sleeve 7, the rotating shaft 8 is in rotating sealed fit with the adjusting screw sleeve 7, a first annular boss 801 is arranged on the section of the rotating shaft 8 on the inner side of the adjusting screw sleeve 7, and a first taper bearing 26 is arranged on the section of the rotating shaft 8. The inner surface of the bottom of the pump body 5 is provided with a central pit, one end of the rotating shaft 8 close to the bottom of the pump body 5 is provided with a second annular boss 802, the section of the rotating shaft 8 between the second annular boss 802 and the bottom of the pump body 5 is positioned in the central pit, a gap is reserved between the rotating shaft 8 and the bottom of the central pit, and the section of the rotating shaft 8 between the bottom of the central pit and the second annular boss 802 is provided with a second taper bearing 27.

For an extended service life, the bulb 24 is made of copper.

When in use, the pipe joint is arranged in the central water outlet hole 11, the main water inlet 13 is connected with a water source through a pipeline, and the pipe joint is connected with a water outlet pipe. The high-pressure pump of the invention utilizes the swash plate 23 to drive the piston rod to reciprocate in the axial through hole 16 to pump liquid. The pump hydraulic pressure can be provided by arranging enough piston rods around the swash plate 23, the swash plate 23 and the piston rods are in surface contact through the plane of the ball head 24, compared with the point or line contact of a cylindrical cam in the background technology, the contact area is greatly increased, and the pressure intensity is small and is not easy to wear under the same pressure. Thus, the service life of such a high-pressure pump is long. Moreover, the high-pressure pump is not easy to wear, so that the maximum rotating speed of the high-pressure pump can be greatly increased, and the pumping water pressure of the high-pressure pump is higher.