CN202746131U - Swash plate type variable displacement piston pump - Google Patents

Swash plate type variable displacement piston pump Download PDF

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Publication number
CN202746131U
CN202746131U CN 201220413305 CN201220413305U CN202746131U CN 202746131 U CN202746131 U CN 202746131U CN 201220413305 CN201220413305 CN 201220413305 CN 201220413305 U CN201220413305 U CN 201220413305U CN 202746131 U CN202746131 U CN 202746131U
Authority
CN
China
Prior art keywords
swash plate
hydraulic cylinder
rotor
oil
variable plunger
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.)
Expired - Fee Related
Application number
CN 201220413305
Other languages
Chinese (zh)
Inventor
甘朝维
黄良华
甘路
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING LANGTAI MACHINERY Co Ltd
Original Assignee
CHONGQING LANGTAI MACHINERY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHONGQING LANGTAI MACHINERY Co Ltd filed Critical CHONGQING LANGTAI MACHINERY Co Ltd
Priority to CN 201220413305 priority Critical patent/CN202746131U/en
Application granted granted Critical
Publication of CN202746131U publication Critical patent/CN202746131U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a swash plate type variable displacement piston pump. The swash plate type variable displacement piston pump comprises a swash plate, a rotor and a plunger piston component which is matched with the rotor. The plunger piston component is abutted against the swash plate through a piston shoe. The swash plate is connected with a following control system which comprises an operating valve, a feedback deflector rod and a hydraulic cylinder. Two ends of the feedback deflector rod are respectively connected with an inner valve core of the operating valve and inside members of the hydraulic cylinder. The rotor is connected with an oil recharging system through a rotating shaft. The swash plate type variable displacement piston pump is provided with the oil recharging system and the following control system at the same time in integrated mode, and therefore installation space can be effectively saved, and requirements on an auxiliary system can be reduced.

Description

A kind of plate variable plunger pump
Technical field
The utility model relates to a kind of plate variable plunger pump.
Background technique
In hydraulic system, oil hydraulic pump is as energy conversion component, converts the mechanical energy of electronic motivation the pressure energy of fluid to, and the liquid with certain pressure and flow is provided for hydraulic system.Can oil hydraulic pump mention regulating and can be divided into metering pump and variable displacement pump by input (or output) fluid within the unit time, and swash plate plunger pump just belongs to a kind of in the variable displacement pump.At present, the swash plate plunger pump that is integrated with simultaneously oil-supplementing system, following control system (stroking mechanism) is also very rare, but thisly integratedly can effectively save installing space, reduces the requirement to auxiliary system.
Summary of the invention
For above-mentioned deficiency of the prior art, the utility model provides a kind of plate variable plunger pump, is integrated with simultaneously oil-supplementing system, following control system, can effectively save installing space, reduces the requirement to auxiliary system.
The technical solution of the utility model is: a kind of plate variable plunger pump, comprise swash plate, rotor and the plunger assembly that matches with rotor, described plunger assembly leans on swash plate by piston shoes, described swash plate is connected with a following control system, described following control system comprises driven valve, feedback driving lever, oil hydraulic cylinder, and the two ends of described feedback driving lever are connected with the inner spool of driven valve, the internals of oil hydraulic cylinder respectively; Described rotor is connected with an oil-supplementing system by rotating shaft.
Further, described oil hydraulic cylinder is the through-rod piston oil hydraulic cylinder.
Further, described swash plate is connected with a slide block by bearing pin, and described slide block is connected with piston in the described oil hydraulic cylinder by connecting rod.
Further, described oil-supplementing system comprise slippage pump and be arranged on the slippage pump oil circuit and the main pump oil circuit on pressure valve.
Described slippage pump comprises a pair of mutually interior meshed gears that is connected in the rotating shaft.
Further, described pressure valve spool is connected with pressure valve valve body plug-in mounting.
Further, described rotating shaft is supported in the pump housing by anti-friction bearing.
Further, the part that is in rotor internal cavity in the described rotating shaft is socketed with spring.
The beneficial effects of the utility model are: be integrated with simultaneously oil-supplementing system, following control system, can effectively save installing space, reduce the requirement to auxiliary system; Adopt the through-rod piston oil hydraulic cylinder, not only good seal performance more can make swash plate produce positive and negative inclination angle, thereby changes the direction of fluid flow; Described feedback driving lever can guarantee that the inner spool corner of described operating valve is consistent with swashplate angle; Described rotor and slippage pump are connected to and form the axis driving on the same axle, can guarantee stability of rotation, prevent supporting; Be in the spring that the part of rotor internal cavity is socketed with in the described rotating shaft, can regulate axial force.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the utility model structural representation;
Fig. 2 is the pressure valve schematic representation among Fig. 1.
Embodiment
Further describe the utility model below in conjunction with specific embodiment and accompanying drawing.
A kind of plate variable plunger pump such as Fig. 1 and shown in Figure 2, comprise swash plate 4, rotor 2 and the plunger assembly 3 that matches with rotor 2, described plunger assembly 3 leans on swash plate 4 by piston shoes 34, described swash plate 4 is connected with a following control system, described following control system comprises driven valve, feedback driving lever 52, oil hydraulic cylinder, and the two ends of described feedback driving lever 52 are connected with the inner spool 51 of driven valve, the internals of oil hydraulic cylinder respectively; Described rotor 2 is connected with an oil-supplementing system by rotating shaft 1.Described oil hydraulic cylinder is the through-rod piston oil hydraulic cylinder.Described swash plate 4 is connected with a slide block 54 by bearing pin, and described slide block 54 is connected with piston 5 in the described oil hydraulic cylinder by connecting rod 53.Described oil-supplementing system comprise slippage pump 6 and be arranged on the slippage pump oil circuit and the main pump oil circuit on pressure valve 61.Described slippage pump 6 comprises a pair of mutually interior meshed gears that is connected in the rotating shaft 1.Described pressure valve spool is connected with pressure valve valve body plug-in mounting.Described rotating shaft 1 is supported in the pump housing by anti-friction bearing.The part that is in rotor 2 inner chambers in the described rotating shaft 1 is socketed with spring.
Rotate the inner spool 51 of driven valve, control fluid enters Hydraulic Cylinder piston 5 and moves, and piston 5 drivening rods 53 move, and connecting rod 53 obtains certain inclination angle so that slide block 54 swings thereby control swash plate 4; Rotor 2 is along with rotating shaft 1 is rotated together, plunger assembly 3 also follows rotor to rotate together, owing to plunger assembly 3 leans on swash plate 4, so plunger assembly 3 can rotate along swash plate 4, thereby plunger assembly 32 constantly stretches out, puts in rotor, and plunger cavity is constantly oil suction, oil extraction just.Slippage pump 6 is constantly to the working connection fuel feeding in the described oil-supplementing system, and when pressure valve 61 experienced that pressure is excessive in the main pump oil circuit, pressure valve 61 will be opened, thereby draining guarantees safety.
More than technological scheme that the utility model embodiment is provided be described in detail, used specific case herein the utility model embodiment's principle and mode of execution are set forth, above embodiment's explanation is only applicable to help to understand the utility model embodiment's principle; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, all will change on embodiment and application area, in sum, this description should not be construed as restriction of the present utility model.

Claims (8)

1. plate variable plunger pump, comprise swash plate, rotor and the plunger assembly that matches with rotor, described plunger assembly leans on swash plate by piston shoes, it is characterized in that: described swash plate is connected with a following control system, described following control system comprises driven valve, feedback driving lever, oil hydraulic cylinder, and the two ends of described feedback driving lever are connected with the inner spool of driven valve, the internals of oil hydraulic cylinder respectively; Described rotor is connected with an oil-supplementing system by rotating shaft.
2. a kind of plate variable plunger pump according to claim 1, it is characterized in that: described oil hydraulic cylinder is the through-rod piston oil hydraulic cylinder.
3. a kind of plate variable plunger pump according to claim 2, it is characterized in that: described swash plate is connected with a slide block by bearing pin, and described slide block is connected with piston in the described oil hydraulic cylinder by connecting rod.
4. a kind of plate variable plunger pump according to claim 1 is characterized in that: described oil-supplementing system comprise slippage pump and be arranged on the slippage pump oil circuit and the main pump oil circuit on pressure valve.
5. a kind of plate variable plunger pump according to claim 4 is characterized in that: described slippage pump comprise a pair of be connected in the rotating shaft mutually in meshed gears.
6. a kind of plate variable plunger pump according to claim 4, it is characterized in that: described pressure valve spool is connected with pressure valve valve body plug-in mounting.
7. a kind of plate variable plunger pump according to claim 1, it is characterized in that: described rotating shaft is supported in the pump housing by anti-friction bearing.
8. according to claim 1 or 7 described a kind of plate variable plunger pumps, it is characterized in that: the part that is in rotor internal cavity in the described rotating shaft is socketed with spring.
CN 201220413305 2012-08-20 2012-08-20 Swash plate type variable displacement piston pump Expired - Fee Related CN202746131U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220413305 CN202746131U (en) 2012-08-20 2012-08-20 Swash plate type variable displacement piston pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220413305 CN202746131U (en) 2012-08-20 2012-08-20 Swash plate type variable displacement piston pump

Publications (1)

Publication Number Publication Date
CN202746131U true CN202746131U (en) 2013-02-20

Family

ID=47705535

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220413305 Expired - Fee Related CN202746131U (en) 2012-08-20 2012-08-20 Swash plate type variable displacement piston pump

Country Status (1)

Country Link
CN (1) CN202746131U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103711689A (en) * 2014-01-09 2014-04-09 北京理工大学 High pressure hydraulic pump plunger of hollow structure
CN108425820A (en) * 2017-12-30 2018-08-21 徐秀芳 A kind of cam-type axial piston pump of included slippage pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103711689A (en) * 2014-01-09 2014-04-09 北京理工大学 High pressure hydraulic pump plunger of hollow structure
CN108425820A (en) * 2017-12-30 2018-08-21 徐秀芳 A kind of cam-type axial piston pump of included slippage pump

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130220

Termination date: 20140820

EXPY Termination of patent right or utility model