CN212867888U - Hydraulic pump device - Google Patents

Abstract

The utility model belongs to a hydraulic pump, in particular to a hydraulic pump device, which comprises an oil tank, a fixed seat and a power component which are arranged in sequence, wherein an oil port is arranged on one side of the oil tank matched with the fixed seat, an oil inlet channel communicated with the oil port is arranged on the fixed seat, the power component comprises a flange, a gear pump fixedly arranged on one side of the flange and a driving medium arranged on the other side of the flange and used for driving the gear pump to work, the power component is fixedly connected with the fixed seat through the flange, a liquid inlet hole of the gear pump is positioned in the oil inlet channel, an oil outlet channel communicated with the liquid outlet hole of the gear pump is arranged on one side of the fixed seat, the oil inlet channel and the oil port are correspondingly arranged on the fixed seat and the oil tank, and the liquid inlet hole of the gear pump is positioned in the oil, the fixed seat is provided with an oil outlet channel communicated with the liquid outlet hole of the gear pump, so that the output of the hydraulic pump is conveniently connected with subsequent equipment.

Description

Hydraulic pump device

Technical Field

The utility model belongs to a hydraulic pump specifically relates to a hydraulic pump device.

Background

Gear pumps are rotary pumps that deliver or pressurize fluid by virtue of the change in working volume and movement created between a pump cylinder and a meshing gear. Two gears, pump body and front and back covers form two closed spaces, when the gears rotate, the space on the gear disengagement side becomes larger from smaller to larger to form vacuum to suck liquid, and the space on the gear engagement side becomes smaller from larger to smaller to squeeze liquid into the pipeline. The suction chamber and the discharge chamber are separated by a meshing line of two gears.

At present, the liquid inlet and the liquid outlet of a common gear pump are directly connected to two sides of a gear pair of the gear pump, the axial size is overlarge, and the pump body is directly connected with a power assembly, so that the gear pump is inconvenient to disassemble, assemble and maintain.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a hydraulic pump device of simple structure compactness.

The utility model discloses an content is including oil tank, fixing base and the power component that sets gradually, the oil tank is provided with the hydraulic fluid port with fixing base cooperation one side, be provided with the oil feed passageway with the hydraulic fluid port intercommunication on the fixing base, flange, the fixed gear pump that sets up in flange one side and the driving medium that sets up at the flange opposite side and be used for drive gear pump work that power component passes through flange and fixing base fixed connection, the feed liquor hole of gear pump is located the oil feed passageway, fixing base one side is provided with the passageway of producing oil that goes out liquid hole intercommunication with the gear pump.

Furthermore, the fixing seat is arranged on one side of the oil outlet channel and is provided with an oil return channel communicated with the oil inlet channel, the oil return channel is arranged, when the oil outlet channel and the oil return channel are simultaneously connected with the electromagnetic directional valve, the reciprocating motion of oil injection and oil return can be carried out, and the practicability is improved.

The utility model discloses still include the electromagnetic directional valve, electromagnetic directional valve one end is connected with oil feed passageway and oil return channel respectively.

Furthermore, be provided with the flange mounting groove that runs through to oil feed passageway on the fixing base, flange mounting groove axis is parallel with fixing base and oil tank contact surface, and the axis of flange and driving medium is parallel with the axis of oil tank promptly, reduces whole axial dimension.

Furthermore, the sealing rings are arranged at the matching positions of the two ends of the flange and the flange mounting groove, so that the sealing effect is ensured, and oil leakage is prevented.

Furthermore, be provided with the driving medium mounting groove that is the echelonment on the flange, echelonment driving medium mounting groove from being close to gear pump one side to deviating from gear pump one side diameter grow in proper order, the installation of each part of being convenient for simplifies the dismouting degree of difficulty, is convenient for maintain.

Further, the driving medium sets up the connecting axle including setting up the connecting axle in the driving medium mounting groove, the motor of being connected with the connecting axle and rotates the supporting component who sets up in the driving medium mounting groove with the connecting axle, sets up the connecting axle, and the transmission shaft of the gear pump of being convenient for is connected with the motor output shaft transmission of motor, when motor or gear pump damage, need not the replacement and corresponds equipment, change alone motor or gear pump can, very big reduction the maintenance cost.

Furthermore, the supporting component comprises a gland, a blocking piece and a bearing which are sequentially arranged in the transmission component mounting groove and are coaxially arranged with the connecting shaft.

Furthermore, an oil seal is arranged among the gland, the blocking piece and the connecting shaft, and a check ring is arranged on one side, away from the blocking piece, of the connecting shaft, so that the sealing effect is improved.

Furthermore, be provided with the stand in the oil tank, the slip is provided with the pressure food tray on the stand, and the pressure food tray is provided with conical spring with oil tank deviates from hydraulic fluid port one side, sets up pressure food tray and conical spring, can also guarantee that 1 interior grease of oil tank can get into the oil feed passageway when making the oil tank slope or upset.

The beneficial effects of the utility model are that, the utility model discloses with the oil tank, fixing base and power component fixed setting in proper order, improve compact structure nature, it sets up oil feed passageway and hydraulic fluid port to correspond on fixing base and the oil tank, and the feed liquor hole of gear pump is located the oil feed passageway, it is downthehole that the feed liquor that makes oil in the oil tank can directly enter into the gear pump is downthehole, need not other connecting tube, guarantee that the downthehole grease of feed liquor is sufficient all the time, overall structure is simple compact, set up on the fixing base in the oil outlet channel that the gear pump goes out liquid hole intercommunication, the output connection follow-up equipment of.

Drawings

Fig. 1 is a schematic view of a first angle structure of the present invention.

Fig. 2 is a front sectional view of the present invention.

Fig. 3 is a schematic diagram of a second angle structure of the present invention.

Fig. 4 is a schematic structural view of the middle fixing seat and the power assembly of the present invention.

Fig. 5 is a front view of the middle fixing base and the power assembly of the present invention.

Fig. 6 is a sectional view taken along line a-a in fig. 5.

Fig. 7 is a partial enlarged view of fig. 6 at B.

Fig. 8 is a bottom view of the middle fixing base and the power assembly of the present invention.

Fig. 9 is a sectional view taken along line C-C in fig. 8.

Fig. 10 is a sectional view taken along line D-D in fig. 8.

Fig. 11 is a sectional view taken along line E-E in fig. 8.

Fig. 12 is a top view of the power module of the present invention.

Fig. 13 is a sectional view taken along line F-F in fig. 12.

Fig. 14 is an exploded view of the gear pump and flange of the present invention.

Fig. 15 is a top view of the flange of the present invention.

Fig. 16 is a sectional view taken along line F-F in fig. 15.

In the figure, 1-oil tank; 101-a column; 102-a pressure pan; 103-conical spring; 104-oil port; 2-a fixed seat; 201-motor mounting groove; 202-flange mounting groove; 203-oil inlet channel; 204-an oil outlet channel; 205-oil return passage; 206-safety valve mounting groove; 207-safety valve channel; 208-an output seat; 209-mounting groove of electromagnetic directional valve; 210-oil outlet holes; 211-oil outlet joint; 212-fixed bumps; 3-a power assembly; 301-gear pump; 3011-lower pump body; 30111-liquid outlet; 30112-driving shaft hole I; 30113-driven shaft hole I; 30114-screw mounting hole I; 30115-flange fixing screw holes; 3012-intermediate pump body; 30121-gear mounting groove; 30122-screw mounting hole II; 3013-upper pump body; 30131-a liquid inlet hole; 30132-driving shaft hole II; 30133-driven shaft hole II; 30134-threaded mounting hole iii; 3014-a drive shaft; 3015-a drive gear; 3016-driven shaft; 3017-driven gear; 3018-mounting bolts; 302-a flange; 3022-driving shaft hole III; 3023-annular oil gallery; 3024-the liquid outlet hole is communicated with the channel; 3025-drive member mounting groove; 3026-flange screw holes; 303 — a transmission member; 3031-motor; 30311-motor output shaft; 3032-connecting shaft; 3033-capping; 3034-oil sealing; 3035-catch; 3036-bearing; 3037-a retainer ring; 4-an electromagnetic directional valve; 5-safety valve.

Detailed Description

As shown in fig. 1-16, the utility model discloses an oil tank 1 and power device, power device includes fixing base 2 and power component 3, wherein, oil tank 1, fixing base 2 and power component 3 set gradually, oil tank 1 is provided with hydraulic fluid port 104 with fixing base 2 cooperation one side, is provided with the oil feed passageway 203 with hydraulic fluid port 104 intercommunication on the fixing base 2, flange 302 that power component 3 includes, the fixed gear pump 301 that sets up in flange 302 one side and set up the driving medium 303 that is used for driving gear pump 301 work at flange 302 opposite side, and power component 3 passes through flange 302 and fixing base 2 fixed connection, the feed liquor hole 30131 of gear pump 301 is located oil feed passageway 203, fixing base 2 one side is provided with the oil outlet channel 204 that goes out liquid hole 30111 and communicate with gear pump 301.

The utility model discloses 1 oil tank, fixing base 2 and power component 3 are fixed the setting in proper order, improve compact structure nature, it sets up oil feed passageway 203 and hydraulic fluid port 104 to correspond on fixing base 2 and the oil tank 1, and feed liquor hole 30131 of gear pump 301 is located oil feed passageway 203, make in 1 interior grease of oil tank can directly enter into the feed liquor hole 30131 of gear pump 301, need not other connecting tube, in this embodiment, oil tank 1 sets up the upper end at fixing base 2 and gear pump 301, the grease is poured into in oil feed passageway 203 through gravity, and pour into the feed liquor hole 30131 of gear pump 301 all the time, guarantee that grease is sufficient all the time in feed liquor hole 30131, overall structure has been simplified simultaneously, set up on fixing base 2 in the play oil passageway 204 that gear pump 301 goes out oil hole 30111 and feeds through, be convenient for the output connection follow-up equipment of hydraulic pump, simplify.

As shown in fig. 9 and 13, the gear pump 301 includes a pump body and a gear pair disposed in the pump body, a liquid inlet 30131 and a liquid outlet 30111 are disposed on two sides of the gear pair, an annular oil passage 3023 is disposed on the flange 302, a liquid outlet communication channel 3024 communicated with the annular oil passage 3023 is disposed on a contact surface of the flange 302 and the gear pump 301, and the liquid outlet 30111 penetrates through the pump body and is communicated with the liquid outlet communication channel 3024.

Through setting up annular oil duct 3023 and the play liquid hole intercommunication channel 3024 of being connected with annular oil duct 3023, connect external equipment through flange 302 with the high pressure grease that gear pump 301 pumped, the oil duct is rationally distributed, with the reasonable setting of oil duct in power component 3's radial direction, reduced gear pump 301's radial dimension, can avoid oil pressure loss simultaneously, guarantee work efficiency.

Specifically, as shown in fig. 14, the pump body of the gear pump 301 includes an upper pump body 3013, a middle pump body 3012 and a lower pump body 3011, wherein the liquid inlet 30131 is disposed on the upper pump body 3013, the axis thereof is located on one side of the gear pair, the upper pump body 3013 is further provided with a driving shaft hole ii 30132, a driven shaft hole ii 30133 and a thread mounting hole iii 30134, the middle pump body 3012 is provided with a gear mounting groove 30121 and a thread mounting hole ii 30122, the lower pump body 3011 is provided with a driving shaft hole i 30112, a driven shaft hole i 30113 and a thread mounting hole i 30114, wherein the driving shaft hole i 30112, the gear mounting groove 30121 and the driving shaft hole ii 30132 are provided with a driving shaft 3014, the driven shaft hole i 30113, the gear mounting groove 30121 and the driven shaft hole ii 30133 are provided with a driven shaft 3016, the gear pair includes a driving gear 3015 and a driven gear 3017 which are disposed on the gear mounting groove 30121 and are matched with the driving shaft 3014 and the driven shaft 3016, the upper pump body 3013, the middle pump body 301, the utility model discloses a gear pump 301 overall structure is compact, and wherein, the diameter of the middle pump body 3012 and the last pump body 3013 is unanimous and is less than the diameter of the lower pump body 3011, and the middle pump body 3012 and the eccentric setting of the last pump body 3013 are on the lower pump body 3011, are provided with flange fixed screw 30115 on the lower pump body 3011, correspond on the flange 302 and are provided with flange screw 3026 for fix gear pump 301 on flange 302, the utility model discloses in, gear pump 301 is fixed to be set up on flange 302, and outstanding setting in oil feed passageway 203 in fixing base 2, guarantees the oil feed volume of gear pump 301, and wherein, goes out liquid hole 30111 and sets up on the lower pump body 3011, still be provided with the III shaft holes 3022 of initiative that correspond with transmission shaft 3014 on the.

As shown in fig. 13, a counter bore is formed in one side of the liquid outlet hole communicating channel 3024, which is located on the end surface of the flange 302, and a sealing ring is arranged in the counter bore, so that oil leakage from the contact surface between the lower pump body 3011 and the flange 302 is prevented, the sealing performance of the oil outlet is ensured, and the effect of the lubricating pump is ensured.

Go out liquid hole 30111 slope setting, go out liquid hole 30111 and be close to the distance of gear pair one side to gear pair meshing axle, be close to liquid hole intercommunication channel 3024 one side to the distance end of gear pair meshing axle than going out liquid hole 30111, will go out liquid hole 30111 slope setting, avoid going out liquid hole intercommunication channel 3024 and too being close driving medium mounting groove 3025, improve the structure steadiness, avoid its lateral wall to cross thinly, in addition, the slope sets up, the high pressure grease that makes the gear pair come out has certain cushioning effect, increase the output stroke.

In this embodiment, feed liquor hole 30131 runs through the terminal surface that the pump body deviates from flange 302 one side, through setting up feed liquor hole 30131 at gear pump 301's terminal surface, improves the feed liquor effect, is convenient for set up the chamfer of loudspeaker form at feed liquor hole 30131 tip, improves the oil feed effect, guarantees compact structure nature, in addition, be provided with the feed liquor auxiliary hole with feed liquor hole 30131 intercommunication on the pump body face of cylinder, very big improvement the feed liquor volume, guarantee gear pump 301's input/output power.

In this embodiment, the annular oil duct 3023 is an annular groove with an opening on the outer side, and the annular groove and the inner wall of the fixing seat 2 form an oil duct, so that the structure is greatly simplified, the cleaning and maintenance of the annular oil duct 3023 are facilitated, and the safety valve channel 207 and the oil outlet channel 204 are more convenient to communicate with the annular oil duct 3023, specifically, the axis of the oil outlet channel 204 is parallel to the axis of the annular oil duct 3023, so that the pressure loss is avoided, and high-pressure grease is conveyed into the oil outlet channel 204 along the annular oil duct 3023.

Be provided with the relief valve passageway 207 with annular oil duct 3023 intercommunication on the fixing base 2, the fixed relief valve 5 that is provided with of relief valve passageway 207 one end improves the security of hydraulic pump, wherein, be provided with the relief valve mounting groove 206 that is used for installing relief valve 5 on the fixing base 2, relief valve 5 and oil feed passageway 203 intercommunication, another of relief valve 5 that makes is located oil feed passageway 203, make the relief valve when pressure surpasss the setting value, the pressure release in-process directly carry the grease can oil feed passageway 203 be in oil tank 1 promptly, and reasonable in design is ingenious, the very big practicality that has improved.

As shown in fig. 1 and 10, an output seat 208 is disposed on the fixed seat 2, an oil outlet channel 204 communicated with an annular oil passage 3023 is disposed on the output seat 208, and the oil outlet channel 204 is disposed through the fixed seat 2, in this embodiment, an electromagnetic directional valve mounting groove 209 is disposed on the output seat 208, an electromagnetic directional valve 4 is disposed in the electromagnetic directional valve mounting groove 209, the other end of the oil outlet channel 204 is connected to the electromagnetic directional valve 4 for outputting high-pressure grease, in addition, a fixing bump 212 is further disposed on one side of a contact surface between the fixed seat 2 and the oil tank 1, and the fixed seat 2 is fixedly connected to the oil tank 1 through the fixing bump 212, so that the assembly and disassembly.

The utility model discloses in, fixing base 2 is located oil outlet channel 204 one side and is provided with the oil return channel 205 with oil feed channel 203 intercommunication. The oil inlet channel 203 and the oil return channel 205 are both connected to the electromagnetic directional valve 4 and are used for outputting and conveying oil and fat, in this embodiment, the fixing base 2 is further provided with two oil outlet holes 210 connected to the other side of the electromagnetic directional valve 4, the oil outlet holes 210 are provided with oil outlet joints 211 which can be used for outputting to two ends of the hydraulic cylinder, and the practicability of the hydraulic pump device is improved.

As shown in fig. 6, a flange mounting groove 202 penetrating to the oil inlet channel 203 is arranged on the fixed seat 2, and the axis of the flange mounting groove 202 is parallel to the contact surface between the fixed seat 2 and the oil tank 1, that is, the axis of the flange 302 and the transmission member 303 is parallel to the axis of the oil tank 1, so that the overall axial dimension is reduced.

The flange 302 both ends are provided with the sealing washer with flange mounting groove 202 cooperation department and avoid being located the grease of oil feed passageway 203 and enter into the condition that the oil leak appears between flange 302 and the flange mounting groove 202, improve the security performance.

As shown in fig. 6, a transmission member mounting groove 3025 in a stepped shape is arranged on the flange 302, the diameter of the stepped transmission member mounting groove 3025 is gradually increased from a side close to the gear pump 301 to a side away from the gear pump 301, the transmission member 303 includes a connecting shaft 3032 arranged in the transmission member mounting groove 3025, a motor 3031 connected with the connecting shaft 3032, and a support assembly rotatably arranging the connecting shaft 3032 in the transmission member mounting groove 3025, the support assembly includes a gland 3033, a blocking piece 3035 and a bearing 3036 which are arranged in the transmission member mounting groove 3025 in sequence and coaxially with the connecting shaft 3032, the connecting shaft 3032 is arranged, so that the transmission shaft 3014 of the gear pump 301 is in transmission connection with the motor output shaft 30311 of the motor 3031, when the motor 3031 or the gear pump 301 is damaged, a corresponding device does not need to be replaced, and the motor 3031 or the gear pump.

An oil seal 3034 is arranged among the gland 3033, the baffle plate 3035 and the connecting shaft 3032, and a retainer ring 3037 is arranged on one side, away from the baffle plate 3035, of the connecting shaft 3032 on the bearing 3036, so that the sealing performance is ensured, and the connecting shaft 3032 is connected and rotated stably.

Be provided with stand 101 in the oil tank 1, the slip is provided with pressure oil pan 102 on the stand 101, presses oil pan 102 and oil tank 1 to deviate from hydraulic fluid port 104 one side and is provided with conical spring 103, sets up pressure oil pan 102 and conical spring 103, can also guarantee that oil fat can get into oil feed passageway 203 in the oil tank 1 when making the slope of oil tank 1 or upset.

Claims (10)

1. A hydraulic pump device is characterized by comprising an oil tank (1), a fixed seat (2) and a power assembly (3) which are arranged in sequence, an oil port (104) is arranged on one side of the oil tank (1) matched with the fixed seat (2), an oil inlet channel (203) communicated with the oil port (104) is arranged on the fixed seat (2), the power assembly (3) comprises a flange (302), a gear pump (301) fixedly arranged on one side of the flange (302) and a transmission piece (303) arranged on the other side of the flange (302) and used for driving the gear pump (301) to work, the power assembly (3) is fixedly connected with the fixed seat (2) through the flange (302), a liquid inlet hole (30131) of the gear pump (301) is positioned in the oil inlet channel (203), and an oil outlet channel (204) communicated with the liquid outlet hole (30111) of the gear pump (301) is arranged on one side of the fixed seat (2).

2. The hydraulic pump unit as claimed in claim 1, characterized in that the holder (2) is provided on one side of the oil outlet passage (204) with an oil return passage (205) communicating with the oil inlet passage (203).

3. The hydraulic pump unit as claimed in claim 2, further comprising a solenoid directional valve (4), wherein one end of the solenoid directional valve (4) is connected to the oil inlet passage (203) and the oil return passage (205), respectively.

4. The hydraulic pump unit as claimed in claim 1, characterized in that the holder (2) is provided with a flange mounting groove (202) extending through to the oil inlet passage (203), and the axis of the flange mounting groove (202) is parallel to the contact surface of the holder (2) and the oil tank (1).

5. The hydraulic pump unit as claimed in claim 4, wherein the flange (302) is provided with sealing rings at the matching positions of both ends thereof and the flange mounting groove (202).

6. The hydraulic pump device as claimed in one of claims 1 to 5, characterized in that the flange (302) is provided with a stepped gear mechanism mounting recess (3025), the diameter of the stepped gear mechanism mounting recess (3025) increasing from the side close to the gear pump (301) to the side facing away from the gear pump (301).

7. The hydraulic pump device as claimed in any one of claims 1 to 5, wherein the driving member (303) includes a connection shaft (3032) disposed in the driving member mounting groove (3025), a motor (3031) connected to the connection shaft (3032), and a support assembly rotatably disposing the connection shaft (3032) in the driving member mounting groove (3025).

8. The hydraulic pump device as claimed in claim 7, wherein the support assembly comprises a gland (3033), a catch (3035) and a bearing (3036) which are sequentially disposed in the driving member mounting groove (3025) and coaxially disposed with the connecting shaft (3032).

9. The hydraulic pump device as claimed in claim 8, wherein an oil seal (3034) is arranged between the gland (3033), the blocking piece (3035) and the connecting shaft (3032), and a retaining ring (3037) is arranged on the connecting shaft (3032) on the side, away from the blocking piece (3035), of the bearing (3036).

10. The hydraulic pump device as claimed in any one of claims 1 to 5, characterized in that a column (101) is arranged in the oil tank (1), a pressure oil pan (102) is slidably arranged on the column (101), and a conical spring (103) is arranged on the side of the pressure oil pan (102) and the oil tank (1) which is far away from the oil port (104).

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