CN205172849U - Closed axial plunger hydraulic pump with adjustable automatically controlled cutting device - Google Patents
Closed axial plunger hydraulic pump with adjustable automatically controlled cutting device Download PDFInfo
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- CN205172849U CN205172849U CN201520911315.1U CN201520911315U CN205172849U CN 205172849 U CN205172849 U CN 205172849U CN 201520911315 U CN201520911315 U CN 201520911315U CN 205172849 U CN205172849 U CN 205172849U
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- control valve
- adjustable
- hydraulic pump
- automatically controlled
- axial plunger
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Abstract
The utility model relates to a closed axial plunger hydraulic pump with adjustable automatically controlled cutting device, it includes, and bearing cap, casing, variable jar, adjustment handle, control valve, valve plate, hou gai, slippage pump, cylinder body, plunger piston shoes are vice, ball seat, return stroke board, sloping cam plate, main shaft and adjustable automatically controlled cutting device, adjustable automatically controlled cutting device includes adjustable damping and the automatically controlled unit that cuts off, adjustable damping install in in the hydraulic fluid port of variable jar, automatically controlled cut off the unit install in on the control valve, with two hydraulic fluid ports at variable jar both ends are connected. The utility model discloses an increase adjustable automatically controlled cutting device at control valve and variable jar, can shorten closed axial plunger hydraulic pump and carry out the response time that switches between " zero output " and " fuel feeding fast " to response time is adjustable, thereby can make the application of closed axial plunger hydraulic pump more wide.
Description
Technical field
The utility model relates to a kind of oil hydraulic pump, particularly relates to a kind of enclosed axial plunger hydraulic pump with adjustable electric-controlled shut-off means.
Background technique
Enclosed axial plunger hydraulic pump utilizes plunger in cylinder body the to-and-fro motion parallel with transmission shaft, the volume of seal operation cavity volume is made to change to realize oil suction, force feed, it is high that it has volumetric efficiency, smooth running, discharge uniformity is good, and noise is low, and working pressure is high, and the advantage such as lightweight of specific power, and be more and more widely used.
Refer to shown in Figure 1A, Figure 1B and Fig. 1 C, existing enclosed axial plunger hydraulic pump forms primarily of bearing cap 1, housing 2, variable cylinder 3, regulating handle 4, control valve 5, thrust plate 6, bonnet 7, slippage pump 8, cylinder body 9, plunger piston slippery boots pair 10, ball bowl 11, backhaul plate 12, swash plate 13 and main shaft 14.Wherein, regulating handle 4 is installed on control valve 5, actuator control valve 5, control valve 5 is three position four-way directional control valve, two actuator ports A1, B1 of control valve 5 are connected with two hydraulic fluid ports A2, the B2 at variable cylinder 3 two ends respectively, the oil inlet P 1 of control valve 5 is connected with slippage pump 8, and the oil return inlet T 1 of control valve 5 accesses the inner chamber of oil hydraulic pump (also claiming draining chamber), and the piston rod of variable cylinder 3 is connected with swash plate 13.
In the course of the work, swash plate 13 is fixed with thrust plate 6, and main shaft 14 drives cylinder body 9, plunger piston slippery boots secondary 10 and backhaul plate 12 to rotate together, and plunger piston slippery boots pair 10 is pressed on swash plate 13 by backhaul plate 12.When main shaft 14 rotates, plunger piston slippery boots pair 10 is doing fore and aft motion along in the pivotal process of swash plate 13 relative to cylinder body 9, realize the change of working volumes volume in cylinder body 9 cylinder bore, complete suction and the discharge of the oil-distribution port of fluid on thrust plate 6 in this process, wherein cylinder body 9 often rotates one week, each plunger reciprocates once, completes an oil suction and force feed action.
Oily one end of being introduced variable cylinder 3 from slippage pump 8 by control valve 5 will be controlled by rotating regulating handle 4, spring force will be overcome mobile by neutral position at the piston controlling variable cylinder 3 under oily promotion, the inclination angle of swash plate 13 changes along with the movement of variable cylinder 3 piston, the change at swash plate 13 inclination angle achieves the change of plunger effective sealing working volumes volume in cylinder body 9, thus achieves the variable of pump.When meta got back to by regulating handle 4, because variable cylinder 3 two ends are communicated with draining chamber respectively by control valve 5, the oil pressure at variable cylinder 3 piston two ends is the same, effective lifting surface area again due to variable cylinder 3 piston two ends is equal, the piston of variable cylinder 3 gets back to neutral position again under spring force, and then the vanishing again of the inclination angle of swash plate 13, oil hydraulic pump output flow is zero.
Because some operating mode needs oil hydraulic pump can switch rapidly between " zero output " and " quick fuel feeding ", and require that the response time is adjustable, namely enclosed axial plunger hydraulic pump swash plate when " zero output " is needed within the response time of system needs, neutral position can be got back to fast, when system needs work, swash plate can get back to working position fast again within the response time of system needs, and by the regulating handle of adjusting control valve come regulator solution pressure pump delivery can not reach required speed of response.
Summary of the invention
The purpose of this utility model is, solve the use limitation of existing enclosed axial plunger hydraulic pump, and a kind of enclosed axial plunger hydraulic pump with adjustable electric-controlled shut-off means of new structure is provided, technical problem to be solved makes it pass through to increase adjustable electric-controlled shut-off means at control valve and variable cylinder, the response time that enclosed axial plunger hydraulic pump carries out switching between " zero output " and " quick fuel feeding " can be shortened, and the response time is adjustable, thus the application of enclosed axial plunger hydraulic pump can be made more wide.
The purpose of this utility model and solve its technical problem be adopt following technological scheme realize.According to a kind of enclosed axial plunger hydraulic pump with adjustable electric-controlled shut-off means that the utility model proposes, comprise bearing cap, housing, variable cylinder, regulating handle, control valve, thrust plate, bonnet, slippage pump, cylinder body, plunger piston slippery boots is secondary, ball bowl, backhaul plate, swash plate and main shaft, it also comprises adjustable electric-controlled shut-off means, described adjustable electric-controlled shut-off means comprises adjustable damping and automatically controlled cutting unit, described adjustable damping is installed in the hydraulic fluid port of described variable cylinder, described automatically controlled cutting unit is installed on described control valve, be connected with two hydraulic fluid ports at described variable cylinder two ends.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
The aforesaid enclosed axial plunger hydraulic pump with adjustable electric-controlled shut-off means, wherein said automatically controlled cutting unit comprises solenoid directional control valve and valve base plate, described solenoid directional control valve is installed on described control valve by described valve base plate, and is connected with two hydraulic fluid ports at described variable cylinder two ends by described valve base plate.
The aforesaid enclosed axial plunger hydraulic pump with adjustable electric-controlled shut-off means, wherein said solenoid directional control valve is the two-way Normally closed type solenoid directional control valve of bi-bit bi-pass, and two actuator port is connected with two hydraulic fluid ports at described variable cylinder two ends respectively by described valve base plate.
The aforesaid enclosed axial plunger hydraulic pump with adjustable electric-controlled shut-off means, wherein said adjustable damping is nozzle.
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, a kind of enclosed axial plunger hydraulic pump with adjustable electric-controlled shut-off means of the utility model at least has following advantages and beneficial effect: the utility model is by increasing adjustable electric-controlled shut-off means at control valve and variable cylinder, the response time that enclosed axial plunger hydraulic pump carries out switching between " zero output " and " quick fuel feeding " can be shortened, and the response time is adjustable, thus the application of enclosed axial plunger hydraulic pump can be made more wide.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of specification, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Figure 1A is the broken section plan view of existing enclosed axial plunger hydraulic pump.
Figure 1B is the right elevation of existing enclosed axial plunger hydraulic pump.
Fig. 1 C is the schematic diagram of the control of existing enclosed axial plunger hydraulic pump and variable part.
Fig. 2 A is a kind of broken section plan view with the enclosed axial plunger hydraulic pump of adjustable electric-controlled shut-off means of the utility model.
Fig. 2 B is a kind of right elevation with the enclosed axial plunger hydraulic pump of adjustable electric-controlled shut-off means of the utility model.
Fig. 2 C is a kind of schematic diagram with the enclosed axial plunger hydraulic pump adjustable damping mounting point of adjustable electric-controlled shut-off means of the utility model.
Fig. 2 D is that a kind of enclosed axial plunger hydraulic pump with adjustable electric-controlled shut-off means of the utility model controls and the schematic diagram of variable part.
Fig. 3 is a kind of schematic diagram with the automatically controlled shut-off means of enclosed axial plunger hydraulic pump of adjustable electric-controlled shut-off means of the utility model.
1: bearing cap 2: housing
3: variable cylinder 4: regulating handle
5: control valve 6: thrust plate
7: bonnet 8: slippage pump
9: cylinder body 10: plunger piston slippery boots is secondary
11: ball bowl 12: backhaul plate
13: swash plate 14: main shaft
15: valve base plate 16: solenoid directional control valve
17: nozzle
Embodiment
For further setting forth the utility model for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to a kind of its embodiment of enclosed axial plunger hydraulic pump, structure, feature and the effect thereof with adjustable electric-controlled shut-off means that the utility model proposes, be described in detail as follows.
Refer to shown in Fig. 2 A, Fig. 2 B, Fig. 2 C, Fig. 2 D and Fig. 3, the enclosed axial plunger hydraulic pump that the utility model has adjustable electric-controlled shut-off means forms primarily of axle bearing lid 1, housing 2, variable cylinder 3, regulating handle 4, control valve 5, thrust plate 6, bonnet 7, slippage pump 8, cylinder body 9, plunger piston slippery boots pair 10, ball bowl 11, backhaul plate 12, swash plate 13, main shaft 14 and adjustable electric-controlled shut-off means.Wherein, adjustable electric-controlled shut-off means comprises adjustable damping and automatically controlled cutting unit, and adjustable damping is installed in hydraulic fluid port A2, B2 of variable cylinder 3, and automatically controlled cutting unit is installed on control valve 5, is connected with two hydraulic fluid ports A2, the B2 at variable cylinder 3 two ends.Automatically controlled cutting unit forms primarily of solenoid directional control valve 16 and valve base plate 15, and solenoid directional control valve 16 is installed on control valve 5 by valve base plate 15, and is connected with two hydraulic fluid ports A2, the B2 at variable cylinder 3 two ends by valve base plate 15.Wherein, solenoid directional control valve 16 is the two-way Normally closed type solenoid directional control valves of bi-bit bi-pass, and its actuator port A3, B3 are connected with two hydraulic fluid ports A2, the B2 at variable cylinder 3 two ends respectively by valve base plate 15.Adjustable damping is nozzle 17, can select as required.
When solenoid directional control valve 16 no electric circuit, the variable of oil hydraulic pump is controlled by control valve 5 completely.When solenoid directional control valve 16 is energized, solenoid directional control valve 16 has precedence over control valve 5, no matter the regulating handle 4 of control valve 5 is where, the oil circuit at variable cylinder 3 two ends will be linked up by solenoid directional control valve 16 moment, the pressure at variable cylinder 3 piston two ends is consistent, now the piston of variable cylinder 3 will get back to neutral position under spring force, and then the inclination angle vanishing of swash plate 13, and oil hydraulic pump output flow is zero.Because the volume that piston is getting back to variations per hour cylinder 3 two ends, neutral position of variable cylinder 3 changes, a part of hydraulic oil will be discharged in one end, the other end will supplement a part of hydraulic oil, when being communicated by Moderator Variable cylinder 3 two ends like this, the size of the nozzle 17 of fluid approach can get back to time in neutral position by Moderator Variable cylinder 3 piston, namely can regulate the response time of back to zero.When solenoid directional control valve 16 power-off, the piston of variable cylinder 3 get back to rapidly again under the control of control valve 5 solenoid directional control valve 16 be energized before position, achieve the quick fuel feeding of oil hydraulic pump.The response time of same fuel feeding fast also can be determined by the size of nozzle 17.
The utility model carrys out the fly back of hydraulic control pump by solenoid directional control valve and starts the manual tune that the time used is far smaller than the regulating handle by control valve fast, and the response time of oil hydraulic pump is adjustable by adjustable damping, fly back and the requirement that starts fast when therefore enclosed axial plunger hydraulic pump of the present utility model can meet use.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art are not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. one kind has the enclosed axial plunger hydraulic pump of adjustable electric-controlled shut-off means, comprise bearing cap, housing, variable cylinder, regulating handle, control valve, thrust plate, bonnet, slippage pump, cylinder body, plunger piston slippery boots is secondary, ball bowl, backhaul plate, swash plate and main shaft, it is characterized in that: it also comprises adjustable electric-controlled shut-off means, described adjustable electric-controlled shut-off means comprises adjustable damping and automatically controlled cutting unit, described adjustable damping is installed in the hydraulic fluid port of described variable cylinder, described automatically controlled cutting unit is installed on described control valve, be connected with two hydraulic fluid ports at described variable cylinder two ends.
2. the enclosed axial plunger hydraulic pump with adjustable electric-controlled shut-off means according to claim 1, it is characterized in that: described automatically controlled cutting unit comprises solenoid directional control valve and valve base plate, described solenoid directional control valve is installed on described control valve by described valve base plate, and is connected with two hydraulic fluid ports at described variable cylinder two ends by described valve base plate.
3. the enclosed axial plunger hydraulic pump with adjustable electric-controlled shut-off means according to claim 2, it is characterized in that: described solenoid directional control valve is the two-way Normally closed type solenoid directional control valve of bi-bit bi-pass, and two actuator port is connected with two hydraulic fluid ports at described variable cylinder two ends respectively by described valve base plate.
4. the enclosed axial plunger hydraulic pump with adjustable electric-controlled shut-off means according to claim 1, is characterized in that: described adjustable damping is nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520911315.1U CN205172849U (en) | 2015-11-16 | 2015-11-16 | Closed axial plunger hydraulic pump with adjustable automatically controlled cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520911315.1U CN205172849U (en) | 2015-11-16 | 2015-11-16 | Closed axial plunger hydraulic pump with adjustable automatically controlled cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205172849U true CN205172849U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520911315.1U Active CN205172849U (en) | 2015-11-16 | 2015-11-16 | Closed axial plunger hydraulic pump with adjustable automatically controlled cutting device |
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| CN (1) | CN205172849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826836A (en) * | 2019-01-11 | 2019-05-31 | 徐州工业职业技术学院 | A kind of intelligent variable pump and hydraulic control system |
-
2015
- 2015-11-16 CN CN201520911315.1U patent/CN205172849U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826836A (en) * | 2019-01-11 | 2019-05-31 | 徐州工业职业技术学院 | A kind of intelligent variable pump and hydraulic control system |
| CN109826836B (en) * | 2019-01-11 | 2020-07-24 | 徐州工业职业技术学院 | Intelligent variable pump and hydraulic control system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |