CN111852808A - Hydraulic pump convenient to dismouting - Google Patents

Hydraulic pump convenient to dismouting Download PDF

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Publication number
CN111852808A
CN111852808A CN202010779359.9A CN202010779359A CN111852808A CN 111852808 A CN111852808 A CN 111852808A CN 202010779359 A CN202010779359 A CN 202010779359A CN 111852808 A CN111852808 A CN 111852808A
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CN
China
Prior art keywords
cylinder body
hydraulic pump
spring
ring body
positioning block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202010779359.9A
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Chinese (zh)
Inventor
王佳慧
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202010779359.9A priority Critical patent/CN111852808A/en
Publication of CN111852808A publication Critical patent/CN111852808A/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/22—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/2014—Details or component parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/2014—Details or component parts
    • F04B1/2042—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/22—Arrangements for enabling ready assembly or disassembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The invention discloses a hydraulic pump convenient to disassemble and assemble, which comprises a cylinder body, an oil distribution disc, a rotating shaft and a sealing ring, wherein the sealing ring comprises a ring body and an arc-surface table, and the ring body is in clearance connection with the arc-surface table; an inner cavity is further formed in the ring body, a positioning block is arranged in the inner cavity, one end of the positioning block is attached to the inner cavity in a sliding mode, and the other end of the positioning block extends out of the ring body and is connected with the cambered surface platform in a sliding mode; and the ring body is also provided with seepage holes for drainage. If there is fluid to leak, fluid can at first enter into the inner chamber through the seepage hole, because the cambered surface platform is fixed to pass through gasket fixed connection in the pivot to follow the pivot and do the rotation jointly, so enter into the inside fluid of inner chamber and can extrude the locating piece under the effect of centrifugal force, through the extrusion locating piece, make locating piece extrusion cambered surface platform, again because the other end of locating piece stretch out the circle body and with cambered surface platform sliding connection, and then can not hinder the rotation of pivot when playing sealed effect.

Description

Hydraulic pump convenient to dismouting
Technical Field
The invention relates to the field of hydraulic pumps, in particular to a hydraulic pump convenient to disassemble and assemble.
Background
The hydraulic pump is a power element of a hydraulic system, and is an element which is driven by an engine or an electric motor, sucks oil from a hydraulic oil tank, forms pressure oil, discharges the pressure oil and sends the pressure oil to an execution element. The hydraulic pump is divided into a gear pump, a plunger pump, a vane pump and a screw pump according to the structure.
The elements used for sealing and preventing oil leakage in the hydraulic pumps used in most occasions at present are sealing rings, the selection of the materials of the sealing rings has important significance on the sealing performance and the service life of the sealing rings, and the performance of the materials directly influences the service performance of the sealing rings; however, the sealing ring is generally made of a whole piece of elastic material, the diameter of the sealing ring in a normal state is smaller than that of the shaft, so that the sealing ring can be pulled and sealed in an assembly state, but in the disassembly process, the sealing ring in a stretching state is extremely difficult to disassemble, the sealing ring is used in a hydraulic pump in a large amount, and the hydraulic pump is difficult to disassemble, so that the hydraulic pump structure convenient to disassemble needs to be designed.
Disclosure of Invention
The present invention is directed to a hydraulic pump that is easy to assemble and disassemble, so as to solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a hydraulic pump convenient to disassemble and assemble comprises a cylinder body, an oil distribution disc, a rotating shaft and a sealing ring, wherein the cylinder body comprises a cylinder body and a clamping module, the end face of the cylinder body is connected with the oil distribution disc through the clamping module, a cavity is formed in the cylinder body, a swash plate is installed in the cavity, one end of the swash plate is fixedly connected with the rotating shaft, the other end of the swash plate is rotatably connected with a plurality of plungers, and the swash plate is further connected with the side wall of the cylinder body through a bearing; one end of the rotating shaft, which extends out of the cylinder body, is also connected with the output end of the power mechanism, a sealing ring is arranged on the circumferential surface of the rotating shaft, the sealing ring comprises a ring body and an arc platform, and the ring body is in clearance connection with the arc platform; an inner cavity is further formed in the ring body, a positioning block is arranged in the inner cavity, one end of the positioning block is attached to the inner cavity in a sliding mode, and the other end of the positioning block extends out of the ring body and is connected with the cambered surface platform in a sliding mode; and the ring body is also provided with a seepage hole for drainage, and the seepage hole is arranged between the positioning block and the inner wall of the ring body.
As a further scheme of the invention: the cambered surface bench is also provided with a sealing sheet and is fixedly connected with the rotating shaft through the sealing sheet.
As a still further scheme of the invention: the oil distribution disc is also provided with a one-way valve matched with the plunger, the one-way valve comprises a valve ball, a second spring, a screw and a third spring, one end of the screw is in threaded connection with the oil distribution disc, and the other end of the screw is in elastic connection with the valve ball through the second spring; and a third spring is sleeved on the circumferential surface of the screw.
As a still further scheme of the invention: the number of the second springs is multiple.
As a still further scheme of the invention: the clamping module comprises a fourth spring and a clamping block, and the clamping block is connected to the cylinder body through the fourth spring; the oil distribution disc is characterized in that a runner pipe is arranged on the oil distribution disc, a pushing cavity is further formed in one end of the runner pipe, an inner moving plate of the disc is arranged in the pushing cavity in a fitting sliding mode, a first sliding plate is further arranged in the pushing cavity, the first sliding plate is connected with a second sliding plate through a connecting column, and the connecting column penetrates through the side wall of the oil distribution disc.
As a still further scheme of the invention: the runner pipe is communicated with the oil liquid output port.
As a still further scheme of the invention: the connecting column is a telescopic column with a telescopic function.
Compared with the prior art, the invention has the beneficial effects that:
1. if oil leaks, the oil enters the inner cavity through the seepage hole, the cambered surface platform is fixedly connected to the rotating shaft through the sealing sheet and rotates along with the rotating shaft, so that the oil entering the inner cavity can extrude the positioning block under the action of centrifugal force, one end of the positioning block is attached to the inner cavity to slide, the positioning block extrudes the cambered surface platform through the extrusion of the positioning block, and the other end of the positioning block extends out of the ring body and is in sliding connection with the cambered surface platform, so that the rotation of the rotating shaft is not hindered while the sealing effect is achieved; when the sealing ring needs to be removed, only oil in the inner cavity needs to be removed, and then the pressure of the extrusion positioning block is removed, so that the cambered surface table is loosened, and the cambered surface table can be easily removed;
2. the fourth spring can improve the fixture block and enter into the degree of easiness of joining in marriage food tray block department, treats that the block accomplishes the back, the hydraulic pump is when using, and the inside fluid of joining in marriage the food tray can enter into from the runner pipe and pass the cavity, and then through liquid pressure, the movable plate in the extrusion dish to the first slide of movable plate extrusion in the promotion dish, make first slide promote the second slide through the spliced pole and stretch out, increase join in marriage the area of contact between food tray and the cylinder body, improve the degree of block.
Drawings
Fig. 1 is a schematic structural view of a hydraulic pump which is easy to disassemble and assemble.
Fig. 2 is a schematic structural view of a hydraulic pump in which a seal ring is assembled with a rotating shaft.
Fig. 3 is a schematic structural view of a check valve in a hydraulic pump which is convenient to disassemble and assemble.
Fig. 4 is a schematic structural diagram of a seal ring in a hydraulic pump convenient to disassemble and assemble.
Fig. 5 is a schematic structural view showing an assembly sectional view of a cylinder block and an oil distribution pan in a hydraulic pump which is easily disassembled.
Fig. 6 is a partially enlarged structural diagram of a in fig. 5.
In the figure: 1-cylinder body, 11-cylinder body, 12-fourth spring, 13-fixture block, 2-rotating shaft, 4-sealing ring, 41-ring body, 42-inner cavity, 43-seepage hole, 44-cambered surface table, 45-sealing piece, 46-positioning block, 5-bearing, 6-swash plate, 7-oil distribution disc, 72-runner pipe, 73-in-disc moving plate, 74-first sliding plate, 75-connecting column, 76-second sliding plate, 77-pushing cavity, 8-one-way valve, 81-valve ball, 82-second spring, 83-screw, 84-third spring and 9-plunger.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to specific embodiments.
Example 1
Referring to fig. 1-6, a hydraulic pump convenient to disassemble and assemble comprises a cylinder body 1, an oil distribution disc 7, a rotating shaft 2 and a sealing ring 4, wherein the cylinder body 1 comprises a cylinder body 11 and a clamping module, the end surface of the cylinder body 11 is connected with the oil distribution disc 7 through the clamping module, a cavity is formed in the cylinder body 11, a swash plate 6 is installed in the cavity, one end of the swash plate 6 is fixedly connected with the rotating shaft 2, the other end of the swash plate is rotatably connected with a plurality of plungers 9, and the swash plate 6 is further connected with the side wall of the cylinder body 11 through a bearing 5; the end, extending out of the cylinder body 11, of the rotating shaft 2 is further connected with the output end of the power mechanism, a sealing ring 4 is arranged on the circumferential surface of the rotating shaft 2, the sealing ring 4 comprises a ring body 41 and an arc platform 44, and the ring body 41 is in clearance connection with the arc platform 44; an inner cavity 42 is further formed in the ring body 41, a positioning block 46 is arranged in the inner cavity 42, one end of the positioning block 46 is attached to the inner cavity 42 to slide, and the other end of the positioning block 46 extends out of the ring body 41 and is connected with the cambered surface table 44 in a sliding mode; and the ring body 41 is further provided with a seepage hole 43 for drainage, and the seepage hole 43 is arranged between the positioning block 46 and the inner wall of the ring body 41.
The cambered surface table 44 is further provided with a sealing sheet 45 and is fixedly connected with the rotating shaft 2 through the sealing sheet 45.
When the oil leakage prevention device is used, if oil leaks, the oil enters the inner cavity 42 through the seepage hole 43, the arc surface table 44 is fixedly connected to the rotating shaft 2 through the sealing sheet 45 and rotates along with the rotating shaft 2, so that the oil entering the inner cavity 42 extrudes the positioning block 46 under the action of centrifugal force, one end of the positioning block 46 is attached to the inner cavity 42 and slides, the positioning block 46 extrudes the arc surface table 44 through extruding the positioning block 46, and the other end of the positioning block 46 extends out of the ring body 41 and is in sliding connection with the arc surface table 44, so that the rotation of the rotating shaft 2 is not hindered while the sealing effect is achieved;
specifically, the arc surface platforms 44 are multiple in number, and can be attached to each other in a compressed state, so that leakage of oil is prevented;
more specifically, one end of the positioning block 46 is in sliding fit with the inner wall of the inner cavity 42, so that the inner cavity 42 can extrude the arc table 44 while collecting leaked oil, and the arc table 44 can clamp the rotating shaft 2, thereby improving the sealing performance of the invention;
when the sealing ring 4 needs to be removed, only the oil in the inner cavity 42 needs to be removed, and then the pressure of the extrusion positioning block 46 is removed, so that the cambered surface table 44 is loosened, at the moment, the sealing sheet arranged on the cambered surface table 44 moves along with the oil, and thus the cambered surface table 44 can be easily removed;
preferably, each arc surface table 44 is provided with a sealing sheet 45, and the material of the sealing sheet 45 may be rubber, that is, the material which can increase the adhesion degree with the side wall of the rotating shaft 2 is adopted, so that the sealing capability of the design is improved.
Example 2
In order to further improve the sealing connection performance of the design, the improvement is added on the basis of the embodiment 1, and the improvement is as follows: referring to fig. 1 to 6, the clamping module includes a fourth spring 12 and a latch 13, and the latch 13 is connected to the cylinder body 11 through the fourth spring 12; the oil distribution disc 7 is provided with a runner pipe 72, one end of the runner pipe 72 is further provided with a pushing cavity 77, an in-disc moving plate 73 is arranged in the pushing cavity 77 in a fitting and sliding mode, a first sliding plate 74 is further arranged in the pushing cavity 77, the first sliding plate 74 is connected with a second sliding plate 76 through a connecting column 75, and the connecting column 75 penetrates through the side wall of the oil distribution disc 7.
The runner pipe 72 communicates with the oil outlet.
The connecting column 75 is a telescopic column having a telescopic function.
When the hydraulic pump is used, the fixture block 13 is firstly clamped into the oil distribution disc 7, the fourth spring 12 can improve the easiness of the fixture block 13 entering the clamping position of the oil distribution disc 7, after the clamping is finished, when the hydraulic pump is used, oil passing through the inside of the oil distribution disc 7 enters the pushing cavity 77 from the runner pipe 72, the moving plate 73 in the disc is extruded through the liquid pressure, the moving plate 73 in the disc is pushed to extrude the first sliding plate 74, the first sliding plate 74 pushes the second sliding plate 76 to extend through the connecting column 75, the contact area between the oil distribution disc 7 and the cylinder body 11 is increased, and the clamping degree is improved;
specifically, the inner wall of the tray moving plate 73 and the inner wall of the pushing cavity 77 are in a sliding fit design, so that leakage of oil can be effectively prevented.
Preferably, the connection column 75 is a telescopic column having a telescopic function, and may be a pneumatic telescopic column, a hydraulic telescopic column, or an electric telescopic column, that is, may be any column that can achieve the purpose of extending and retracting the connection column 75.
Example 3
In order to further improve the fluency of the hydraulic pump for entering and exiting the oil, the improvement is added on the basis of the embodiment, and the improvement is as follows: referring to fig. 1-6, a check valve 8 cooperating with the plunger 9 is further disposed on the oil distribution disc 7, the check valve 8 includes a valve ball 81, a second spring 82, a screw 83 and a third spring 84, one end of the screw 83 is screwed to the oil distribution disc 7, and the other end is elastically connected to the valve ball 81 through the second spring 82; and a third spring 84 is sleeved on the circumferential surface of the screw 83.
The number of the second springs 82 is plural.
When in use, on the basis of the prior art, the second spring 82 is added between the valve ball 81 and the screw 83, so that the one-way circulation effect can be achieved under the double buffering effect of the second spring 82 and the third spring 84, and the existence of the second spring 82 also increases a compensation value with a certain distance for the valve ball 81, so that the one-way circulation capability of the one-way valve 8 is improved;
specifically, the magnitude of the compensation value is determined by the spring length and the elastic modulus of the second spring 82.
It should be noted that, the power utilization components, such as the power mechanism, etc., in the present application are all connected to the external controller, the external controller is the prior art, and the present application does not improve the external controller, so that the specific model, the circuit structure, etc., of the external controller need not be disclosed, and the integrity of the present application is not affected.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (7)

1. A hydraulic pump convenient to disassemble and assemble comprises a cylinder body (1), an oil distribution disc (7), a rotating shaft (2) and a sealing ring (4), wherein the cylinder body (1) comprises a cylinder body (11) and a clamping module, the end face of the cylinder body (11) is connected with the oil distribution disc (7) through the clamping module, a cavity is formed in the cylinder body (11), a swash plate (6) is installed in the cavity, one end of the swash plate (6) is fixedly connected with the rotating shaft (2), the other end of the swash plate is rotatably connected with a plurality of plungers (9), and the swash plate (6) is further connected with the side wall of the cylinder body (11) through a bearing (5); the cylinder body is characterized in that one end of the rotating shaft (2) extending out of the cylinder body (11) is also connected with the output end of the power mechanism, and a sealing ring (4) is arranged on the circumferential surface of the rotating shaft (2), wherein the sealing ring (4) comprises a ring body (41) and an arc platform (44), and the ring body (41) is in clearance connection with the arc platform (44); an inner cavity (42) is further formed in the ring body (41), a positioning block (46) is arranged in the inner cavity (42), one end of the positioning block (46) is attached to the inner cavity (42) to slide, and the other end of the positioning block extends out of the ring body (41) and is connected with the arc surface table (44) in a sliding mode; and the ring body (41) is also provided with seepage holes (43) for drainage, and the seepage holes (43) are arranged between the positioning block (46) and the inner wall of the ring body (41).
2. The hydraulic pump convenient to disassemble and assemble according to claim 1, wherein the cambered surface platform (44) is further provided with a sealing sheet (45) and is fixedly connected with the rotating shaft (2) through the sealing sheet (45).
3. The hydraulic pump convenient to disassemble and assemble as claimed in claim 1, wherein the oil distribution disc (7) is further provided with a check valve (8) matched with the plunger (9), the check valve (8) comprises a valve ball (81), a second spring (82), a screw (83) and a third spring (84), one end of the screw (83) is connected to the oil distribution disc (7) in a threaded mode, and the other end of the screw is elastically connected with the valve ball (81) through the second spring (82); and a third spring (84) is sleeved on the circumferential surface of the screw (83).
4. A fluid pump as claimed in claim 3, wherein the number of the second spring (82) is plural.
5. The hydraulic pump convenient to disassemble and assemble according to claim 1, wherein the clamping module comprises a fourth spring (12) and a clamping block (13), and the clamping block (13) is connected to the cylinder body (11) through the fourth spring (12); the oil distribution disc is characterized in that a runner pipe (72) is arranged on the oil distribution disc (7), a pushing cavity (77) is further arranged at one end of the runner pipe (72), an in-disc moving plate (73) is arranged in the pushing cavity (77) in a fitting and sliding mode, a first sliding plate (74) is further arranged in the pushing cavity (77), the first sliding plate (74) is connected with a second sliding plate (76) through a connecting column (75), and the connecting column (75) penetrates through the side wall of the oil distribution disc (7).
6. The hydraulic pump as claimed in claim 5, wherein the runner pipe (72) communicates with an oil outlet.
7. A hydraulic pump easy to disassemble and assemble according to claim 5, characterized in that the connecting column (75) is a telescopic column with telescopic function.
CN202010779359.9A 2020-08-05 2020-08-05 Hydraulic pump convenient to dismouting Withdrawn CN111852808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010779359.9A CN111852808A (en) 2020-08-05 2020-08-05 Hydraulic pump convenient to dismouting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010779359.9A CN111852808A (en) 2020-08-05 2020-08-05 Hydraulic pump convenient to dismouting

Publications (1)

Publication Number Publication Date
CN111852808A true CN111852808A (en) 2020-10-30

Family

ID=72972573

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010779359.9A Withdrawn CN111852808A (en) 2020-08-05 2020-08-05 Hydraulic pump convenient to dismouting

Country Status (1)

Country Link
CN (1) CN111852808A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112879256A (en) * 2021-03-10 2021-06-01 焦秀智 Experimental device capable of simulating reservoir pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112879256A (en) * 2021-03-10 2021-06-01 焦秀智 Experimental device capable of simulating reservoir pressure

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Application publication date: 20201030

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