CN116857174B - Exhaust structure of hydraulic pump - Google Patents
Exhaust structure of hydraulic pump Download PDFInfo
- Publication number
- CN116857174B CN116857174B CN202310677650.9A CN202310677650A CN116857174B CN 116857174 B CN116857174 B CN 116857174B CN 202310677650 A CN202310677650 A CN 202310677650A CN 116857174 B CN116857174 B CN 116857174B
- Authority
- CN
- China
- Prior art keywords
- sealing
- fixing
- adjacent
- fixedly connected
- blocks
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 231
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 239000010720 hydraulic oil Substances 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000004140 cleaning Methods 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 12
- 239000012535 impurity Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 239000007788 liquid Substances 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- 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
- F04B53/06—Venting
-
- 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
-
- 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
- F04B53/10—Valves; Arrangement of 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
- F04B53/10—Valves; Arrangement of valves
- F04B53/1087—Valve seats
-
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
-
- 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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention relates to the technical field of hydraulic pumps, and discloses a hydraulic pump exhaust structure, which comprises a fixed frame, wherein a first fixed pipe is fixedly connected with the fixed frame, a second fixed pipe is fixedly connected and communicated with the first fixed pipe, a symmetrical sealing seat is fixedly connected with the inner wall of the second fixed pipe, an inclined surface is arranged on the upper side of the sealing seat, a first fixed plate which is symmetrical and is positioned on the upper side of an adjacent sealing seat is fixedly connected with the inner wall of the second fixed pipe, a first sliding rod is connected with the first fixed plate in a sliding manner, a sealing block matched with the adjacent sealing seat is fixedly connected with the first sliding rod, a first elastic piece is fixedly connected between the fixed plate and the adjacent sealing block, a supporting component for pushing the adjacent sealing block is arranged in the sealing seat, and a detection component for driving the sealing block is arranged in the fixed frame. According to the invention, the sealing blocks are arranged in the shape of the convex and are matched with the inclined surfaces of the sealing seats, so that the contact area between the sealing blocks and the adjacent sealing seats is increased, and the sealing performance between the sealing seats and the adjacent sealing blocks is improved.
Description
Technical Field
The invention relates to the technical field of hydraulic pumps, and discloses a hydraulic pump exhaust structure.
Background
A plunger pump is a common type of hydraulic pump, which consists of a plunger, a cylinder, a crank mechanism, etc., and is reciprocated inside the cylinder by the plunger to thereby transfer liquid from a low pressure area to a high pressure area, and compress and accelerate it to generate high pressure and high speed flow.
The existing plunger pump is provided with a one-way valve structure at a liquid inlet and a liquid outlet, the one-way valve structure in the existing plunger pump is sealed through the cooperation of a sealing ball and a valve seat, liquid is conveyed to a high-pressure area from a low-pressure area through the reciprocating movement of a plunger in the liquid conveying process, the contact area between the sealing ball and the valve seat is small, the sealing effect is poor, the sealing performance between the sealing ball and the valve seat is reduced due to friction, the sealing performance between the sealing ball and the valve seat is reduced, and the working pressure and the working displacement of a hydraulic pump are unstable.
Disclosure of Invention
The invention discloses an industrial hydraulic pump with an automatic exhaust function, which is used for overcoming the problems of the prior hydraulic pump in the background technology.
The technical scheme of the invention is as follows: the utility model provides a hydraulic pump exhaust structure, including the mount, the mount rigid coupling has first fixed pipe, first fixed pipe rigid coupling and intercommunication have the second fixed pipe, the mount swivelling joint has electric rotating shaft, electric rotating shaft rigid coupling has the eccentric wheel, the interlock pole is installed to the eccentric wheel, the mount rigid coupling has the fixed cover with interlock pole sliding connection, the interlock pole rigid coupling has the plunger of sliding connection in first fixed intraductal, the inner wall rigid coupling of second fixed pipe has symmetrical seal holder, the upside of seal holder is provided with the inclined plane, the inner wall rigid coupling of second fixed pipe has symmetrical and is located adjacent seal holder upside first fixed plate, first fixed plate sliding connection has first slide bar, first slide bar rigid coupling has the sealing piece with adjacent seal holder complex, rigid coupling has first elastic component between fixed plate and the adjacent sealing piece, the sealing piece sets up to the font and cooperates with the inclined plane of adjacent seal holder, be used for increasing the area of contact of sealing piece and adjacent seal holder, be provided with the supporting component that is used for promoting adjacent sealing piece in the seal holder, the mount is provided with the detection component that is used for driving the sealing piece.
Further, the support assembly comprises a sliding ring, the sealing seat is provided with a ring-shaped cavity, the sliding ring is in sliding connection with the adjacent ring-shaped cavity, a limiting ring used for limiting the adjacent sliding ring is fixedly connected to the inner wall of the ring-shaped cavity, the sealing seat is in sliding connection with a support column with equal circumferential spacing in a sealing manner, and the support column is in extrusion fit with the adjacent sealing block.
Further, the detection assembly comprises symmetrical fixing blocks which are fixedly connected to the front part and the rear part of the electric rotating shaft respectively, the fixing blocks are located on connecting lines of the circle center of the electric rotating shaft and the circle center of the eccentric wheel, fixing frames are fixedly connected with fixing shells which are symmetrical with the center point of the electric rotating shaft, connecting pipes are communicated between one fixing shell and an annular cavity at the water inlet, connecting pipes are communicated between the other fixing shell and the annular cavity at the water outlet, a third piston is connected in the fixing shells in a sliding mode, hydraulic oil is filled in the fixing shells, connecting pipes and the annular cavity, second elastic pieces are arranged in the fixing shells, two ends of each second elastic piece are fixedly connected to the adjacent fixing shells and the third piston respectively, and connecting frames are fixedly connected to the third piston.
Further, the rotating wheel is installed on one side of the connecting frame, which is close to the electric rotating shaft, and is in extrusion fit with the adjacent fixed block, and the diameter of the rotating wheel is larger than the width of the fixed block, so that the connecting frame and the fixed block are prevented from being impacted.
Further, the diameter of the fixing case is larger than the diameter of the connection pipe.
Further, the sealing assembly is arranged on the adjacent sealing blocks, the sealing assembly is used for increasing the tightness between the sealing seat and the adjacent sealing blocks, the sealing assembly comprises symmetrical second fixing plates, symmetrical first cavities are formed in the upper portions of the sealing blocks, the symmetrical second fixing plates are fixedly connected in the adjacent first cavities respectively, second sliding rods are slidably connected to the second fixing plates, symmetrical first pistons are fixedly connected to the second sliding rods, the first pistons are slidably connected with the adjacent first cavities and are in sealing fit with the first cavities, annular grooves are formed in the sealing blocks, sealing lantern rings are fixedly connected in the annular grooves of the sealing blocks, symmetrical first channels are formed in the sealing blocks, the first channels are communicated with the adjacent first cavities and the sealing lantern rings, symmetrical second channels are formed in the sealing blocks, second cavities are formed in the middle portions of the sealing blocks, and are communicated with the adjacent first cavities and the second cavities, and the second pistons are in limiting sliding connection with the second pistons in the second cavities.
Further, hydraulic oil is filled between the second fixing plate and the first piston far away from one side of the first channel, and the sealing sleeve ring, the first channel, the second channel and the second cavity are all filled with the hydraulic oil, and the second channel is communicated between the second fixing plate and the first piston far away from one side of the first channel.
Further, the sealing lantern ring is made of elastic rubber and used for improving the tightness between the sealing seat and the adjacent sealing block.
Further, the motor-driven rotating shaft further comprises symmetrically distributed balancing weights, the symmetrically distributed balancing weights are fixedly connected to the front portion and the rear portion of the motor-driven rotating shaft respectively, the balancing weights are located on opposite sides of the adjacent fixing blocks, and the balancing weights enable the motor-driven rotating shaft to rotate in a stable state.
Further, the cleaning device further comprises a cleaning ring, the cleaning ring is fixedly connected to the plunger, the cleaning ring is in sliding fit with the inner wall of the first fixed pipe, and the cleaning ring is used for removing particle impurities on the inner wall of the first fixed pipe.
The invention has the beneficial effects that:
1. the sealing blocks are arranged in a convex shape and are matched with the inclined surfaces of the sealing seats, so that the contact area between the sealing blocks and the adjacent sealing seats is increased, and the sealing performance of the sealing seats and the adjacent sealing blocks is improved.
2. When the plunger moves leftwards, the sealing of the upper sealing seat and the sealing blocks is released, so that air between the two sealing blocks is prevented from being extruded firstly when the plunger moves leftwards, the air compression occupies the volume between the two sealing blocks, the unstable output pressure of the hydraulic pump is caused, the actual displacement of the hydraulic pump is reduced, and the efficiency and the performance of the pump are further reduced.
3. The support column of lower part releases the sealing of sealing block and sealing seat, prevents that the negative pressure that the pull produced when the plunger moved rightwards from making the air between two sealing blocks take place to expand, leads to the lower part sealing block to open and has detained, causes this hydraulic pump output pressure unstable, produces the pressure wave and causes this hydraulic pump to take place abnormal sound.
4. The sealing collars of the upper part and the lower part move left and right along with the plunger piston, so that the tightness between the adjacent sealing seats and the sealing blocks is improved, and the sealing between the adjacent sealing seats and the sealing blocks is prevented from being reduced in the use process of the hydraulic pump, so that the output pressure and the discharge capacity of the hydraulic pump are unstable.
5. The plunger drives the cleaning ring fixedly connected with the plunger to clean the particle impurities attached to the inner wall of the first fixed pipe, so that the particle impurities suspended in water are prevented from being attached to the inner wall of the first fixed pipe, and the service life of the plunger is prolonged.
6. The weight of the two fixed blocks is balanced through the symmetrical balance blocks, so that vibration in the rotation process of the electric rotating shaft is reduced.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic cross-sectional perspective view of a first stationary tube and a second stationary tube according to the present invention.
FIG. 3 is a schematic perspective view of a seal block and other parts of the present invention in cross-section.
Fig. 4 is a schematic perspective view of a detection assembly according to the present invention.
Fig. 5 is a schematic cross-sectional perspective view of the fixing case of the present invention.
Fig. 6 is an enlarged perspective view of the present invention at a.
FIG. 7 is a schematic perspective view in cross-section of a plunger and purge ring of the present invention.
Marked in the figure as: 101-fixing frame, 102-first fixing tube, 103-second fixing tube, 104-electric rotating shaft, 105-eccentric wheel, 106-linkage rod, 107-fixing sleeve, 108-plunger, 201-sealing seat, 202-first fixing plate, 203-first sliding rod, 204-sealing block, 205-first elastic piece, 301-annular cavity, 302-sliding ring, 303-limiting ring, 304-supporting column, 401-first cavity, 402-second fixing plate, 403-second sliding rod, 404-first piston, 405-sealing sleeve ring, 406-first channel, 407-second channel, 408-second cavity, 409-second piston, 501-fixing block, 502-fixing shell, 503-connecting tube, 504-third piston, 505-second elastic piece, 506-connecting frame, 507-rotating wheel, 6-balancing block, 7-cleaning ring.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description. The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Example 1: 1-4, a hydraulic pump exhaust structure, including a fixing frame 101, the left side of the fixing frame 101 is fixedly connected with a first fixing tube 102, the left end of the first fixing tube 102 is fixedly connected and communicated with a second fixing tube 103, the upper end of the second fixing tube 103 is a liquid outlet, the lower end of the second fixing tube 103 is a liquid inlet, the right side of the fixing frame 101 is rotatably connected with an electric rotating shaft 104, the electric rotating shaft 104 is fixedly connected with an eccentric wheel 105, the eccentric wheel 105 is provided with a linkage rod 106, the electric rotating shaft 104 drives the linkage rod 106 to reciprocate left and right through the eccentric wheel 105, the middle part of the fixing frame 101 is fixedly connected with a fixing sleeve 107, the linkage rod 106 passes through the fixing sleeve 107 and is in sliding connection with the fixing sleeve, the left end of the linkage rod 106 is fixedly connected with a plunger 108, the plunger 108 is in the first fixing tube 102 in sliding connection, the linkage rod 106 is driven by the plunger 108 to move left and right to convey water from a low pressure area to a high pressure area, the inner wall of the second fixed pipe 103 is fixedly connected with two symmetrical sealing seats 201, the upper side of the sealing seat 201 is provided with inclined surfaces, the inner wall of the second fixed pipe 103 is fixedly connected with two symmetrical first fixed plates 202, the first fixed plates 202 are positioned on the upper sides of the adjacent sealing seats 201, the first fixed plates 202 are in sliding connection with first sliding rods 203, the first sliding rods 203 are fixedly connected with sealing blocks 204 matched with the adjacent sealing seats 201, first elastic pieces 205 are fixedly connected between the first fixed plates 202 and the adjacent sealing blocks 204, the first elastic pieces 205 are arranged as springs, the first elastic pieces 205 are sleeved on the adjacent first sliding rods 203, the sealing blocks 204 are arranged in a convex shape and are matched with the inclined surfaces of the adjacent sealing seats 201 to increase the contact area between the sealing blocks 204 and the adjacent sealing seats 201, the sealing property between the sealing seats 201 and the adjacent sealing blocks 204 is further improved, the unstable conveying pressure and the discharge capacity of the hydraulic pump are avoided, a supporting component for pushing the adjacent sealing blocks 204 is arranged in the sealing seat 201, and a detecting component for driving the sealing blocks 204 is arranged on one side of the fixing frame 101.
As shown in fig. 6, the support assembly comprises a sliding ring 302, the sealing seat 201 is provided with a ring-shaped cavity 301, the sliding ring 302 is slidably connected in the adjacent ring-shaped cavity 301, the sealing seat 201 is in sealing fit with the adjacent ring-shaped cavity 301, a limiting ring 303 is fixedly connected to the inner wall of the ring-shaped cavity 301, the limiting ring 303 is used for limiting the adjacent sliding ring 302, under the action of the limiting ring 303, the sliding ring 302 is prevented from moving to the bottommost side of the ring-shaped cavity 301, the sealing seat 201 is slidably and hermetically connected with four support columns 304 with equal intervals in the circumferential direction, the support columns 304 are in extrusion fit with the adjacent sealing blocks 204, when the plunger 108 starts to move leftwards from the right side, the four support columns 304 are upwards moved by the extrusion force of hydraulic oil in the ring-shaped cavity 301, so that the upper sealing block 204 is unsealed from the adjacent sealing seat 201, and compressed air is avoided when the plunger 108 starts to move leftwards from the right side.
As shown in fig. 4 and 5, the detection assembly includes two symmetrical fixing blocks 501, the two symmetrical fixing blocks 501 are respectively and fixedly connected to the right sides of the front and rear parts of the electric rotating shaft 104, the fixing blocks 501 are located on the connecting line between the center of the electric rotating shaft 104 and the center of the eccentric wheel 105, the fixing frame 101 is fixedly connected with two fixing shells 502 which are symmetrical about the center point of the electric rotating shaft 104, a connecting pipe 503 is communicated between the left fixing shell 502 and the annular cavity 301 at the water inlet, a connecting pipe 503 is communicated between the right fixing shell 502 and the annular cavity 301 at the water outlet, a third piston 504 is connected in the fixing shell 502 in a sliding manner, the fixing shells 502, the connecting pipe 503 and the annular cavity 301 are filled with hydraulic oil, the third piston 504 moves along the adjacent fixing shells 502 to change the pressure in the annular cavity 301, thereby controlling the position of the supporting column 304, the diameter of the fixing shells 502 is larger than that of the connecting pipe 503, the third piston 504 moves a small distance, the supporting column 304 can completely explore, a second elastic piece 505 is arranged in the fixing shells 502, two ends of the second elastic piece 505 are respectively and fixedly connected with the adjacent fixing shells 504 and the third piston 506, the third piston 506 is connected with the third piston 506, the third piston 502 is connected with the rotating frame 506, the third piston 506 is connected with the rotating frame 501, the rotating stably and the rotating stably is matched with the rotating frame, and the rotating frame is prevented from being matched with the rotating frame, and the rotating stably, and the rotating frame is connected with the rotating frame 501.
When the water pump is used, a worker connects a conveying pipeline to two ends of the second fixed pipe 103, the worker starts the electric rotating shaft 104, the electric rotating shaft 104 drives the eccentric wheel 105 to rotate circumferentially, the eccentric wheel 105 drives the plunger 108 to reciprocate left and right along the first fixed pipe 102 through the linkage rod 106, when the plunger 108 moves to the right, the sealing block 204 at the lower side drives the first sliding rod 203 fixedly connected to the lower side to move upwards, the first elastic piece 205 at the lower side is compressed, water flows into the first fixed pipe 102 from a gap between the sealing block 204 at the lower side and the sealing seat 201, the sealing block 204 at the upper side keeps a sealing state, when the plunger 108 moves to the left to drain, the plunger 108 pushes water in the first fixed pipe 102 to the left, the sealing block 204 at the upper side drives the first sliding rod 203 fixedly connected to the upper side to move upwards, and simultaneously the sealing block 204 at the lower side moves downwards to reset, and the sealing block 204 at the lower side is resealed with the adjacent sealing seat 201, so that water is continuously drained.
In the process of rotating the electric rotating shaft 104, the electric rotating shaft 104 drives the two fixed blocks 501 to rotate circumferentially, when the rear fixed block 501 rotates to the right, the plunger 108 moves to the right side of the first fixed pipe 102 at this time, meanwhile, the rear fixed block 501 presses the rear rotating wheel 507, the rotating wheel 507 is pressed to drive the rear connecting frame 506 to move rightwards, the connecting frame 506 drives the rear third piston 504 to move rightwards, the rear third piston 504 presses the hydraulic oil in the adjacent fixed shell 502, the elastic piece of the rear second elastic piece 505 is compressed, the hydraulic oil in the rear fixed shell 502 flows into the upper annular cavity 301 along the rear connecting pipe 503, the pressure of the hydraulic oil in the annular cavity 301 increases, the hydraulic oil in the annular cavity 301 presses the sliding ring 302 upwards, the sliding ring 302 drives the four supporting columns 304 to move upwards along the sealing seat 201, the four support columns 304 on the upper side squeeze the adjacent sealing blocks 204, the sealing blocks 204 on the upper side are unsealed from the sealing seat 201, water on the upper part of the second fixed pipe 103 is in a communicating state with the first fixed pipe 102, along with the high-speed rotation of the electric rotating shaft 104, at the moment, the rotating wheel 507 on the right side loses contact with the fixed block 501 on the rear side, meanwhile, the plunger 108 starts to move leftwards, the plunger 108 pushes the water in the first fixed pipe 102 to enable the water to flow upwards along the second fixed pipe 103, the sealing between the sealing seat 201 on the upper side and the sealing blocks 204 is further released when the plunger 108 moves leftwards, the air between the two sealing blocks 204 is prevented from being squeezed firstly when the plunger 108 moves leftwards, the air compression occupies the volume between the two sealing blocks 204, the actual displacement of the hydraulic pump is reduced due to the instability of the output pressure of the hydraulic pump, and the efficiency and the performance of the pump are reduced.
In the process that the electric rotating shaft 104 drives the eccentric wheel 105 to rotate, after the rear fixed block 501 and the right rotating wheel 507 lose coordination, the right third piston 504 and parts on the third piston are reset under the elastic action of the second elastic piece 505, and hydraulic oil in the upper annular cavity 301 flows back into the right fixed shell 502 along the rear connecting pipe 503.
In the process that the electric rotating shaft 104 drives the eccentric wheel 105 to rotate, when the eccentric wheel 105 drives the plunger 108 to move rightwards from the left side, at this time, under the action of the elastic force of the upper first elastic piece 205, the upper sealing block 204 and the sealing seat 201 are resealed, meanwhile, the front fixing block 501 presses the left rotating wheel 507, so that hydraulic oil in the left fixing shell 502 flows into the lower annular cavity 301 along the front connecting pipe 503, the lower four supporting columns 304 upwards press the adjacent sealing blocks 204, the lower sealing blocks 204 and the sealing seat 201 are unsealed, so that lower liquid of the second fixing pipe 103 flows into the first fixing pipe 102 through a gap between the lower sealing blocks 204 and the sealing seat 201, and when the plunger 108 moves leftwards, the sealing between the sealing blocks 204 and the sealing seat 201 is released by the lower supporting columns 304, and air between the two sealing blocks 204 is prevented from expanding due to negative pressure generated by pulling when the plunger 108 moves rightwards, so that the lower sealing blocks 204 are opened and are retained, the output pressure of the hydraulic pump is unstable, and abnormal sound is caused.
Example 2: on the basis of embodiment 1, as shown in fig. 6, the sealing assembly is further provided with symmetrical sealing assemblies, the sealing assemblies are arranged on adjacent sealing blocks 204, the sealing assemblies are used for increasing the tightness between the sealing seat 201 and the adjacent sealing blocks 204, the sealing assemblies comprise symmetrical second fixing plates 402, the upper parts of the sealing blocks 204 are provided with symmetrical first cavities 401, the symmetrical second fixing plates 402 are fixedly connected in the adjacent first cavities 401 respectively, the second fixing plates 402 are in sliding connection with second sliding rods 403, the second sliding rods 403 are fixedly connected with symmetrical first pistons 404, the first pistons 404 are in sliding connection with the adjacent first cavities 401 and are in sealing fit, after the pressure on the upper sides of the first pistons 404 is increased, the first pistons 404 slide downwards along the adjacent first cavities 401, the sealing blocks 204 are provided with annular grooves, sealing lantern rings 405 are fixedly connected in the annular grooves of the sealing blocks 204, the sealing sleeve ring 405 is made of elastic rubber, the pressure of hydraulic oil in the sealing sleeve ring 405 is increased, the sealing sleeve ring 405 is expanded, otherwise, the sealing sleeve ring is contracted, the sealing sleeve ring is used for increasing the tightness between the sealing seat 201 and the adjacent sealing block 204, the phenomenon that the tightness between the sealing block 204 and the sealing seat 201 is reduced in the using process of the hydraulic pump, the pressure and the displacement of water in the hydraulic pump are unstable is avoided, the sealing block 204 is provided with two symmetrical first channels 406, the first channels 406 are communicated with the adjacent first cavities 401 and the sealing sleeve ring 405, the sealing block 204 is provided with two symmetrical second channels 407, the middle part of the sealing block 204 is provided with a second cavity 408, the second channels 407 are communicated with the adjacent first cavities 401 and the second cavities 408, a second piston 409 is in limit sliding connection in the second cavity 408, the second piston 409 moves upwards along the adjacent second cavities 408 after being subjected to pressure, the hydraulic oil in the second cavity 408 flows into the adjacent first cavity 401 along the adjacent second channel 407, hydraulic oil is filled between the second fixing plate 402 and the first piston 404 on the upper side of the second fixing plate 402, the sealing collar 405, the first channel 406, the second channel 407 and the second cavity 408 are all filled with hydraulic oil, and the second channel 407 is communicated between the second fixing plate 402 and the first piston 404 on the upper side.
In the use process, when the plunger 108 starts to move rightwards, the pressure at the water outlet of the second fixing pipe 103 is larger than the pressure of water at the lower side of the upper side sealing block 204, at the moment, the two first pistons 404 of the upper side sealing block 204 are pressed downwards by the pressure of water at the upper side of the upper side sealing block 204, the two first pistons 404 at the upper side of the upper side sealing block 204 respectively drive the adjacent second sliding rod 403 and other parts at the upper side of the upper side sealing block 204 to move downwards, at the moment, the two first pistons 404 at the upper side of the upper side sealing block 204 move downwards, hydraulic oil between the second fixing plate 402 and the adjacent first pistons 404 flows into the second cavity 408 along the second channel 407, hydraulic oil in the second cavity 408 downwards presses the second piston 409, the second piston 409 downwards moves along the second cavity 408, at the same time, the two first pistons 404 at the lower side of the upper side sealing block 204 respectively press the hydraulic oil into the sealing collar 405 along the two first channels 406 of the upper side sealing block 204, the pressure of the hydraulic oil in the sealing collar 405 increases, the sealing collar 405 is enabled to be tightly attached to the inner wall of the upper side sealing block 201 and further the sealing seat 201 is increased by the sealing collar 405.
The plunger 108 starts to move rightwards to reduce the pressure born by the upper side of the lower sealing block 204, so that hydraulic oil in the lower sealing sleeve flows into the two first cavities 401 of the lower sealing block 204, the pressure of the hydraulic oil in the sealing sleeve 405 is reduced, the lower sealing sleeve 405 is deformed at the moment, the extrusion force between the lower sealing sleeve 405 and the adjacent sealing seat 201 is reduced, meanwhile, the hydraulic oil in the lower second cavity 408 flows between the lower first piston 404 and the second fixing plate 402 along the second channel 407, the lower second piston 409 moves upwards along the lower second cavity 408, and when the lower sealing block 204 moves upwards along the adjacent sealing seat 201, the friction between the lower sealing sleeve 405 and the adjacent sealing seat 201 is reduced, and the service life of the sealing sleeve 405 is prolonged.
When the plunger 108 starts to move leftwards from the right part, the pressure of water between the two sealing blocks 204 is increased, the extrusion force of water received by the upper second piston 409 and the lower first piston 404 is increased, the extrusion force of water received by the upper second piston 409 is increased along the second cavity 408, hydraulic oil in the upper second cavity 408 flows into the upper two first cavities 401 along the second channel 407, at this time, the extrusion force of hydraulic oil received by the upper two first pistons 404 in the upper sealing block 204 is increased, the two first pistons 404 in the upper sealing block 204 and positioned at the lower side are synchronously moved upwards, hydraulic oil in the upper sealing collar 405 flows into the first cavities 401 through the first channel 406, the extrusion force of hydraulic oil between the upper sealing collar 405 and the adjacent sealing seat 201 is reduced, at the same time, the extrusion force of hydraulic oil received by the lower sealing collar 405 and the adjacent sealing seat 201 is synchronously increased, the sealing property between the lower sealing seat 201 and the adjacent sealing block 204 is improved, the displacement of hydraulic oil is prevented from being steadily increased between the upper sealing collar 405 and the adjacent sealing seat 201, and the displacement of the hydraulic pump is prevented from being steadily decreased by the displacement between the upper sealing block and the lower sealing seat 201 and the adjacent sealing seat 201.
Example 3: on the basis of embodiment 2, as shown in fig. 4, the electric rotating shaft further comprises two symmetrically distributed balancing weights 6, the two symmetrically distributed balancing weights 6 are fixedly connected to the front and rear parts of the electric rotating shaft 104 respectively, the balancing weights 6 are located on opposite sides of the adjacent fixing blocks 501, the balancing weights 6 enable the electric rotating shaft 104 to keep stable rotation, and in the rotation process of the electric rotating shaft 104, the weight of the two fixing blocks 501 is balanced through the symmetrical balancing weights 6, so that vibration in the rotation process of the electric rotating shaft 104 is reduced.
As shown in fig. 7, the cleaning ring 7 is further included, the cleaning ring 7 is fixedly connected to the plunger 108, the cleaning ring 7 is slidably matched with the inner wall of the first fixed pipe 102, the cleaning ring 7 is used for cleaning the particle impurities on the inner wall of the first fixed pipe 102, the plunger 108 drives the cleaning ring 7 fixedly connected to the plunger 108 to clean the particle impurities attached to the inner wall of the first fixed pipe 102 in the process of moving the plunger 108 leftwards, and the particle impurities suspended in water are prevented from being attached to the inner wall of the first fixed pipe 102, so that the service life of the plunger 108 is prolonged.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (7)
1. The utility model provides a hydraulic pump exhaust structure, including mount (101), mount (101) rigid coupling has first fixed pipe (102), first fixed pipe (102) rigid coupling and intercommunication have second fixed pipe (103), mount (101) swivelling joint has electric rotating shaft (104), electric rotating shaft (104) rigid coupling has eccentric wheel (105), interlock pole (106) are installed to eccentric wheel (105), mount (101) rigid coupling has fixed cover (107) with interlock pole (106) sliding connection, interlock pole (106) rigid coupling has plunger (108) sliding connection in first fixed pipe (102), a serial communication port, still include two seal holders (201), two seal holders (201) symmetry rigid coupling are in the upper and lower two portions of second fixed pipe (103) inner wall, the upside of seal holder (201) is provided with the inclined plane, every seal holder (201) upside is equipped with first fixed plate (202), and two first fixed plate (202) symmetry are consolidated in the inner wall of second fixed pipe (103), first fixed plate (202) sliding connection has first slide bar (203) sliding connection in plunger (108) in first fixed pipe (102), first seal holder (203) sliding connection has between seal holder (204) and the adjacent seal holder (204), the sealing blocks (204) are arranged in a convex shape and are matched with inclined surfaces of adjacent sealing seats (201) to increase the contact area between the sealing blocks (204) and the adjacent sealing seats (201), supporting components for pushing the adjacent sealing blocks (204) are arranged in the sealing seats (201), and the fixing frame (101) is provided with detection components for driving the sealing blocks (204);
the support assembly comprises a sliding ring (302), the sealing seat (201) is provided with a ring-shaped cavity (301), the sliding ring (302) is connected in the ring-shaped cavity (301) in a sliding mode, a limiting ring (303) used for limiting the sliding ring (302) is fixedly connected to the inner wall of the ring-shaped cavity (301), the sealing seat (201) is connected with circumferentially equidistant supporting columns (304) in a sliding mode in a sealing mode, and the supporting columns (304) are in extrusion fit with adjacent sealing blocks (204);
the detection assembly comprises two fixing blocks (501), wherein the two fixing blocks (501) are fixedly connected to the front part and the rear part of the electric rotating shaft (104) respectively, the two fixing blocks (501) are arranged in a front-back symmetrical mode, the fixing blocks (501) are positioned on a connecting line between the circle center of the electric rotating shaft (104) and the circle center of the eccentric wheel (105), a fixing shell (502) which is symmetrical with the center point of the electric rotating shaft (104) is fixedly connected to the fixing frame (101), a connecting pipe (503) is communicated between one fixing shell (502) and an annular cavity (301) at a water inlet, a connecting pipe (503) is communicated between the other fixing shell (502) and the annular cavity (301) at a water outlet, a third piston (504) is connected to the two fixing shells (502), hydraulic oil is filled in the fixing shells (502), a second elastic piece (505) is arranged in the fixing shells (502), and two ends of the second elastic piece (505) are fixedly connected to the fixing shells (502) and the third piston (504) respectively, and the third piston (504) is fixedly connected to the connecting frame (506);
one side of the connecting frame (506) close to the electric rotating shaft (104) is provided with a rotating wheel (507), the rotating wheel (507) is in extrusion fit with the adjacent fixed block (501), the diameter of the rotating wheel (507) is larger than the width of the fixed block (501), and the connecting frame (506) is prevented from being impacted with the fixed block (501).
2. A hydraulic pump discharge structure according to claim 1, characterized in that the diameter of the fixed housing (502) is larger than the diameter of the connection pipe (503).
3. The hydraulic pump exhaust structure according to claim 1, further comprising two sealing components, wherein the sealing components are symmetrically arranged on the sealing block (204), the sealing components are used for increasing tightness between the sealing seat (201) and the adjacent sealing block (204), the sealing components comprise two second fixing plates (402), two first cavities (401) are symmetrically arranged on the upper part of the sealing block (204), the two second fixing plates (402) are fixedly connected in the adjacent first cavities (401) respectively, the two second fixing plates (402) are symmetrically arranged, the second fixing plates (402) are slidably connected with a second sliding rod (403), two ends of the second sliding rod (403) are fixedly connected with a first piston (404) respectively, the two first pistons (404) are symmetrically arranged relative to the second fixing plates (402), the first piston (404) is slidably connected with the first cavities (401) and in sealing fit, the sealing block (204) is provided with an annular groove, a sealing collar (405) is fixedly connected in the annular groove of the sealing block (204), the sealing block (204) is fixedly connected in the annular groove, the sealing block (406) is slidably connected with a second sliding rod (403), two symmetrical channels (408) are respectively arranged at two ends of the second sliding rod (403), two symmetrical channels (408) are respectively, two symmetrical channels (204) are respectively arranged between the first sealing block (406) and the second sealing block (204), the second channel (407) is respectively communicated with the adjacent first cavity (401) and second cavity (408), and a second piston (409) is connected in the second cavity (408) in a limiting sliding way.
4. A hydraulic pump discharge structure according to claim 3, characterized in that hydraulic oil is filled between the second fixing plate (402) and the first piston (404) on the side far from the first passage (406), the sealing collar (405), the first passage (406), the second passage (407) and the second cavity (408) are filled with hydraulic oil, and the second passage (407) is communicated between the second fixing plate (402) and the first piston (404) on the side far from the first passage (406).
5. A hydraulic pump discharge structure according to claim 3, characterized in that the sealing collar (405) is provided in an elastic rubber material for increasing the tightness between the sealing seat (201) and the adjacent sealing block (204).
6. The hydraulic pump exhaust structure according to claim 1, further comprising two balancing weights (6), wherein the two balancing weights (6) are fixedly connected to the front and rear portions of the electric rotating shaft (104) respectively, the two balancing weights (6) are symmetrically distributed on the front and rear portions of the electric rotating shaft (104), the balancing weights (6) are located on opposite sides of the adjacent fixed blocks (501), and the balancing weights (6) enable the electric rotating shaft (104) to rotate in a stable state.
7. The hydraulic pump exhaust structure according to claim 1, further comprising a cleaning ring (7), wherein the cleaning ring (7) is fixedly connected to the plunger (108), the cleaning ring (7) is slidably matched with the inner wall of the first fixed pipe (102), and the cleaning ring (7) is used for cleaning particle impurities on the inner wall of the first fixed pipe (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310677650.9A CN116857174B (en) | 2023-06-09 | 2023-06-09 | Exhaust structure of hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310677650.9A CN116857174B (en) | 2023-06-09 | 2023-06-09 | Exhaust structure of hydraulic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116857174A CN116857174A (en) | 2023-10-10 |
| CN116857174B true CN116857174B (en) | 2024-01-23 |
Family
ID=88224192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310677650.9A Active CN116857174B (en) | 2023-06-09 | 2023-06-09 | Exhaust structure of hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116857174B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1058192A (en) * | 1962-11-01 | 1967-02-08 | Williams & James Engineers Ltd | Improvements in or relating to fluid seals |
| CN102748293A (en) * | 2012-06-07 | 2012-10-24 | 珠海格力电器股份有限公司 | Variable-stage or variable-cylinder variable displacement compressor and control method thereof |
| CN205714724U (en) * | 2016-04-22 | 2016-11-23 | 无锡中节能建筑能源有限公司 | Novel reciprocating type water injecting pump |
-
2023
- 2023-06-09 CN CN202310677650.9A patent/CN116857174B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1058192A (en) * | 1962-11-01 | 1967-02-08 | Williams & James Engineers Ltd | Improvements in or relating to fluid seals |
| CN102748293A (en) * | 2012-06-07 | 2012-10-24 | 珠海格力电器股份有限公司 | Variable-stage or variable-cylinder variable displacement compressor and control method thereof |
| CN205714724U (en) * | 2016-04-22 | 2016-11-23 | 无锡中节能建筑能源有限公司 | Novel reciprocating type water injecting pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116857174A (en) | 2023-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100513783C (en) | Multi-stage diaphragm pump | |
| CN101936282B (en) | Pneumatic type two diaphragm pump | |
| CN116857174B (en) | Exhaust structure of hydraulic pump | |
| CN1643252A (en) | Reciprocable piston with a fluid scavenging system and method of scavenging a fluid | |
| CN108278186B (en) | A kind of two-dimentional plunger hydraulic pamp of water-oil separating formula space cam transmission | |
| CN203560050U (en) | Five-plunger high-pressure pump power end capable of reducing torque of crankshaft | |
| CN213870211U (en) | Reciprocating displacement pump | |
| CN214464718U (en) | Filtering isolation type double-membrane diaphragm pump | |
| CN114876756A (en) | Ultrahigh pressure hydraulic end assembly | |
| CN108361189B (en) | Bidirectional radial plunger pump for distributing flow of motor valve and flow distribution method thereof | |
| CN210509543U (en) | Electric diaphragm pump | |
| CN203201745U (en) | Double-cavity double-effect air pump and window wiping robot with double-cavity double-effect air pump | |
| CN103742395B (en) | A kind of design method of primary air extractor | |
| CN217873152U (en) | Liquid-driven piston compressor cylinder with isolated liquid cavity and compressor | |
| CN117889068B (en) | Oil field oil pump capable of preventing floating valve from being eccentrically worn | |
| CN213360383U (en) | Lifting type linear single-tube pump | |
| CN210178553U (en) | Pneumatic diaphragm pump | |
| CN115306695B (en) | Pressure-adjustable type bias-wear-resistant ultrahigh-pressure high-speed electrohydraulic multi-control slideway plunger pump | |
| CN1458409A (en) | Reciprocating movement type compressor | |
| CN219672818U (en) | Pneumatic liquid conveying device | |
| CN202338474U (en) | Chord-variable type compressor | |
| CN112392719B (en) | High-efficient compact plunger pump plunger device | |
| CN213928699U (en) | Tympanic membrane box pump | |
| CN216975220U (en) | Leakage-free device of screw pump | |
| CN213981169U (en) | Split type plunger pump and electro-hydraulic tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |