CN201546889U - Biserial radial ten-piston motor - Google Patents

Biserial radial ten-piston motor Download PDF

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Publication number
CN201546889U
CN201546889U CN2009200619622U CN200920061962U CN201546889U CN 201546889 U CN201546889 U CN 201546889U CN 2009200619622 U CN2009200619622 U CN 2009200619622U CN 200920061962 U CN200920061962 U CN 200920061962U CN 201546889 U CN201546889 U CN 201546889U
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CN
China
Prior art keywords
plunger
eccentric shaft
oil
sphere
cylinder
Prior art date
Application number
CN2009200619622U
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Chinese (zh)
Inventor
张国豪
朱小化
陈观兴
覃华胜
陈昌中
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佛山市顺德区中意液压有限公司
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Priority to CN2009200619622U priority Critical patent/CN201546889U/en
Application granted granted Critical
Publication of CN201546889U publication Critical patent/CN201546889U/en

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Abstract

The utility model discloses a biserial radial ten-piston motor, which comprises a shell, an eccentric shaft, a cylinder cover, plunger-type cylinders, plungers and an oil distribution mechanism, wherein two rows of plungers and plunger-type cylinders are supported between the spherical surface on the eccentric shaft and the spherical surface of the cylinder cover; springs are arranged in the corresponding plungers and plunger-type cylinders; the two ends of each spring are respectively clung to the spherical surface of the plunger-type cylinder and the spherical surface of the cylinder cover; the five plungers in one row can be restrained on the same circumference, so that the spherical surface on each plunger is clung to the spherical surface on the eccentric shaft; moreover, due to the action of the springs, the spherical surfaces of the plunger-type cylinders are clung to the spherical surface of the cylinder cover, so that the plungers and the plunger-type cylinders are automatically centered without radial force when the eccentric shaft rotates; under the action of the static pressure balance of the plungers and the plunger-type cylinders, the motor can run under the low friction state, and the pressure in the plunger-type cylinders can be transferred and directly acted on the eccentric shaft by the oil pressure without adopting any mechanical connecting piece; moreover, the four or six plungers in the ten plunger-type cylinders are periodically communicated with an oil inlet and an oil outlet respectively by the oil distribution mechanism. The motor has the advantages of high efficiency, long service life, low speed, high torque and large displacement.

Description

Biserial is ten piston motors radially

Technical field

The utility model relates to oil hydraulic motor new structure and Fluid Transmission and Control technical field, and especially a kind of biserial is ten piston motors radially.

Background technique

Be applied to various engineerings field along with hydraulics is increasingly extensive, current motor demand to low speed, high moment of torsion, big discharge capacity is increasing; Up to now, the motor kind of low speed, high moment of torsion, big discharge capacity is tired many, includes the radial motor of multiple-action inner curved motor, single-acting 5 or 7 plunger cases.Multiaction curve motor complex structure, the working portion contact stress is big, lateral force is big, the life-span is low and processing cost is high; The radial motor overall size of single-acting 5 or 7 plunger cases is big, and pressure and flow pulsation are big.

The model utility content

The purpose of this utility model is to solve all deficiencies that exist in the above-mentioned prior art, and a kind of efficient height, long service life are provided, and the biserial of low speed, high moment of torsion, big discharge capacity is ten piston motors radially.

The purpose of this utility model is achieved in that

A kind of biserial is ten piston motors radially, include housing, eccentric shaft, cylinder cap, front cover, rear end cover, fore bearing, rear bearing, plunger case, plunger, retaining ring, the retaining ring support, oil distribution mechanism and Sealing, between the sphere of sphere on the eccentric shaft and cylinder cap, be supported with two colonnade plug and plunger cases, and be provided with spring in corresponding plunger and the plunger case, the two ends of spring are adjacent to the sphere of plunger case and the sphere of cylinder cap respectively, with per five plungers is row, constrain on the same circumference by retaining ring, sphere on each plunger and the sphere on the eccentric shaft are adjacent to, active force because of spring is that the sphere of plunger case and the sphere of cylinder cap are adjacent to again, make eccentric shaft when rotation plunger and plunger case voluntarily centering do not have radial force, plunger and plunger case are under the static balance effect, make motor be in low Frotteurism operation, pressure in the plunger case is not by any mechanical fastener, but act directly on the eccentric shaft by the oil liquid pressure transmission, have in ten plunger cases four or six plungers periodically by oil distribution mechanism respectively with oil-feed, oil return is connected.

The purpose of this utility model can also adopt following technical measures to solve:

As scheme more specifically, described cylinder shell has ten cylinder body fitting seats, per five is row, be evenly distributed on the cylinder shell circumference, five cylinder body fitting seats of secondary series and five cylinder body fitting seats of first row stagger each other in the radial circumference direction and are separated by 36 °, be cast with ten runners of even distribution on ten runners and the cylinder shell ear end face and communicate respectively evenly having on the rear end cover, ten runners communicate with ten cylinder cap upper runners, such ten plungers, plunger case and two eccentric shaft spheres, ten cylinder cap spheres form ten airtight cavity volumes, and these ten airtight cavity volumes communicate with runner on the cylinder cap respectively.

Be distributed with two eccentric spheres in axial direction on the described eccentric shaft, two eccentric spheres, 180 degree that stagger mutually, reduce the bearing radial force so greatly, improved the efficient height, increased the life-span, and sphere adopts sprayed molybdenum technology, strengthened the wear resistance of sphere, anti-corrosive properties, high temperature resistance, oxidative stability are because of the sprayed molybdenum surface has good lubrication, significantly reduce the friction between the sphere, prolonged sphere working life.

Described oil distribution casing mechanism mainly is made up of bonnet, thrust spring, floating ring, oil distribution casing, transmission shaft, oil-distributing plate, housing, oil distribution casing is installed on the transmission shaft of motor eccentric shaft, so that transmission shaft can drive the oil distribution casing rotation, oil-distributing plate is fixed on the housing, floating ring is installed on the bonnet in not rotatable mode, floating ring can axially move compensating axial clearance under the thrust spring effect, whole oil distribution mechanism is installed in a side of motor by bonnet, offers the motor oil inlet and outlet on bonnet.

Described maintenance ring seat pass through screw on eccentric shaft, its mass cg is consistent with the axis of eccentric shaft, guarantee that it does not have centrifugal force at rotary course, can not produce the power effect of cliping and pasting, also can not produce periodically additional centrifugal force effect bearing to set screw.

The beneficial effects of the utility model are:

The utility model biserial is ten piston motors radially, by single-acting five plunger case radial plunger piston motors being carried out mechanism's redesign, increase number of plungers and make it to reach ten; Increase eccentric shaft sphere number simultaneously, make it two at the symmetrical sphere of radial direction, five plunger cases, plunger is combined on the cylinder body fitting seat that is listed as on the housing that evenly is installed in motor, five plunger cases of each row, eccentric sphere of the corresponding motor eccentric shaft of plunger, two single-row radial plunger piston motor effects in parallel have so just been formed, its discharge capacity has increased one times, export torque down with pressure and correspondingly increased one times, symmetrical between the two colonnade plug oil cylinders, motional inertia and radial force are offset each other, make it have motion steadily, compact structure, the efficient height, long service life, low speed, high moment of torsion, advantages such as big discharge capacity.

Description of drawings

Fig. 1 is the radially cut-away view of ten piston motors of the utility model biserial;

Fig. 2 is the retaining ring support schematic perspective view of the utility model motor;

Fig. 3 is the housing stereogram of the utility model motor.

Embodiment

As shown in Figure 1 to Figure 3, a kind of biserial is ten piston motors radially, include housing 33, eccentric shaft 1, cylinder cap 19, front cover 2, rear end cover 22, fore bearing 3, rear bearing 21, plunger case 5, plunger 7, retaining ring 12,16, retaining ring support 15, oil distribution mechanism and Sealing, between the sphere of sphere on the eccentric shaft 1 and cylinder cap 19, be supported with two colonnade plugs 7 and plunger case 5, and be provided with spring 8 in corresponding plunger 7 and the plunger case 5, the two ends of spring 8 are adjacent to the sphere of plunger case 5 and the sphere of cylinder cap 19 respectively, with per five plungers 7 is row, by retaining ring 12,16 constrain on the same circumference, sphere on each plunger 7 and the sphere on the eccentric shaft 1 are adjacent to, active force because of spring 8 is that the sphere of plunger case 5 and the sphere of cylinder cap 19 are adjacent to again, when making eccentric shaft 2 rotation plunger 7 and plunger case 5 voluntarily centering do not have radial force, plunger 7 and plunger case 5 are under the static balance effect, make motor be in low Frotteurism operation, pressure in the plunger case 5 is not by any mechanical fastener, but act directly on the eccentric shaft 1 by the oil liquid pressure transmission, have in ten plunger cases four or six plungers 7 periodically by oil distribution mechanism respectively with oil-feed, oil return is connected.

Further, described cylinder shell 19 has ten cylinder body fitting seats, per five is row, be evenly distributed on cylinder shell 19 circumference, five cylinder body fitting seats of secondary series and five cylinder body fitting seats of first row stagger each other in the radial circumference direction and are separated by 36 °, be cast with ten runners 18 of even distribution on ten runners 20 and cylinder shell 19 ear end faces and communicate respectively evenly having on the rear end cover 22, ten runners 18 communicate with ten cylinder cap upper runners 13, such ten plungers 7, plunger case 5 and two eccentric shaft spheres, ten cylinder cap spheres form ten airtight cavity volumes, and these ten airtight cavity volumes communicate with runner 13 on the cylinder cap 19 respectively.

As mode of execution more specifically, be distributed with two eccentric spheres in axial direction on the described eccentric shaft 1, two eccentric spheres, 180 degree that stagger mutually, fluid is cancelled out each other to the sphere radial effect power of eccentric shaft, reduce shaft strength so greatly, so efficient height, increased working life, and sphere adopts sprayed molybdenum technology, strengthened the wear resistance of sphere, anti-corrosive properties, high temperature resistance, oxidative stability are because of the sprayed molybdenum surface has good lubrication, significantly reduce the friction between the sphere, prolonged sphere working life.

Above-mentioned oil distribution casing mechanism is mainly by bonnet 26, thrust spring 25, floating ring 29, oil distribution casing 24, transmission shaft 23, oil-distributing plate 32, housing 33 is formed, oil distribution casing 24 is installed on the transmission shaft 23 of motor eccentric shaft 1, so that transmission shaft 23 can drive oil distribution casing 24 rotations, oil-distributing plate 32 is fixed on the housing 33, floating ring 29 is installed on the bonnet 26 in not rotatable mode, floating ring 29 can axially move compensating axial clearance under thrust spring 25 effects, whole oil distribution mechanism is installed in a side of motor by bonnet 26, offers the motor oil inlet and outlet on bonnet 26.

Described maintenance ring seat 15 pass through screw on eccentric shaft 1, its mass cg is consistent with the axis of eccentric shaft 1, to guarantee that it does not have centrifugal force at rotary course, can not produce the power effect of cliping and pasting to set screw, can not produce periodically additional centrifugal force effect to bearing yet.

Biserial of the present utility model is ten piston motors radially, and another advantage of design is to have cancelled the parts that connect, and oil cylinder only can be linear flexible, so active force does not have cross stream component.This means that moving element does not have oval wearing and tearing, the joint of oil cylinder does not have lateral force yet; Ten plunger cylinder assemblies are divided into two row, five stepless actions of every row are becoming on 180 ° of eccentric spheres that stagger, reduced radial force effect to bearing, each plunger cylinder and the every plunger cylinder in the secondary series in each row are symmetrical along the axis of eccentric shaft, and two symmetrical oil cylinders are by joining oil system while and filler opening or oil drain out switching.

Moreover the novel designs of shell construction has great importance for the minimizing of motor weight and the optimization of boundary dimension, and is particularly with respect to the conventional hydraulic motors of same displacement, with the obvious advantage.Even and moment of torsion output also is quite steady under low speed, even motor also shows high performance starting characteristic under load.

Claims (5)

1. a biserial ten piston motors radially, it is characterized in that, include housing (33), eccentric shaft (1), cylinder cap (19), front cover (2), rear end cover (22), fore bearing (3), rear bearing (21), plunger case (5), plunger (7), retaining ring (12,16), retaining ring support (15), oil distribution mechanism and Sealing, between the sphere of sphere on the eccentric shaft (1) and cylinder cap (19), be supported with two colonnade plugs (7) and plunger case (5), and be provided with spring (8) in corresponding plunger (7) and the plunger case (5), the two ends of spring (8) are adjacent to the sphere of plunger case (5) and the sphere of cylinder cap (19) respectively, with per five plungers (7) is row, by retaining ring (12,16) constrain on the same circumference, sphere on each plunger (7) and the sphere on the eccentric shaft (1) are adjacent to, active force because of spring (8) is adjacent to the sphere of plunger case (5) and the sphere of cylinder cap (19) again, make eccentric shaft (2) when rotation plunger (7) and plunger case (5) voluntarily centering do not have radial force, plunger (7) and plunger case (5) are under the static balance effect, make motor be in low Frotteurism operation, pressure in the plunger case (5) is not by any mechanical fastener, but act directly on the eccentric shaft (1) by the oil liquid pressure transmission, have in ten plunger cases four or six plungers (7) periodically by oil distribution mechanism respectively with oil-feed, oil return is connected.
2. according to the described biserial of claim 10 piston motors radially, it is characterized in that, described cylinder shell (19) has ten cylinder body fitting seats, per five is row, be evenly distributed on cylinder shell (19) circumference, five cylinder body fitting seats of secondary series and five cylinder body fitting seats of first row stagger each other in the radial circumference direction and are separated by 36 °, be cast with ten runners of even distribution (18) on ten runners (20) and cylinder shell (19) ear end face and communicate respectively evenly having on the rear end cover (22), ten runners (18) communicate with ten cylinder cap upper runners (13), such ten plungers (7), plunger case (5) and two eccentric shaft spheres, ten cylinder cap spheres form ten airtight cavity volumes, and these ten airtight cavity volumes communicate with runner (13) on the cylinder cap (19) respectively.
3. according to the described biserial of claim 10 piston motors radially, it is characterized in that, be distributed with two eccentric spheres in axial direction on the described eccentric shaft (1), two eccentric spheres, 180 degree that stagger mutually, sphere adopts sprayed molybdenum technology.
4. according to the described biserial of claim 10 piston motors radially, it is characterized in that, described oil distribution casing mechanism is mainly by bonnet (26), thrust spring (25), floating ring (29), oil distribution casing (24), transmission shaft (23), oil-distributing plate (32), housing (33) is formed, oil distribution casing (24) is installed on the transmission shaft (23) of motor eccentric shaft (1), so that transmission shaft (23) can drive oil distribution casing (24) rotation, oil-distributing plate (32) is fixed on the housing (33), floating ring (29) is installed on the bonnet (26) in not rotatable mode, floating ring (29) can axially move compensating axial clearance under thrust spring (25) effect, whole oil distribution mechanism is installed in a side of motor by bonnet (26), offers the motor oil inlet and outlet on bonnet (26).
5. according to the described biserial of claim 10 piston motors radially, it is characterized in that, described maintenance ring seat (15) pass through screw on eccentric shaft (1), its mass cg is consistent with the axis of eccentric shaft (1).
CN2009200619622U 2009-08-07 2009-08-07 Biserial radial ten-piston motor CN201546889U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103615353A (en) * 2013-12-13 2014-03-05 宁波欧易液压有限公司 Hydraulic motor with plungers and swinging cylinders
CN104329217A (en) * 2014-10-23 2015-02-04 佛山市顺德区中意液压有限公司 Telescopic tilt cylinder type hydraulic motor and machining method of eccentric spherical surface of telescopic tilt cylinder type hydraulic motor
CN106930916A (en) * 2017-04-25 2017-07-07 中国海洋大学 A kind of dynamic shell type multiaction water hydraulic radial plunger pump
CN107939594A (en) * 2017-11-08 2018-04-20 中国航空工业集团公司金城南京机电液压工程研究中心 A kind of radial plunger piston motor
CN108001671A (en) * 2017-11-08 2018-05-08 中国航空工业集团公司金城南京机电液压工程研究中心 A kind of aircraft nose wheel turning actuator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103615353A (en) * 2013-12-13 2014-03-05 宁波欧易液压有限公司 Hydraulic motor with plungers and swinging cylinders
CN103615353B (en) * 2013-12-13 2016-01-13 宁波欧易液压有限公司 Plunger tilt cylinder oil hydraulic motor
CN104329217A (en) * 2014-10-23 2015-02-04 佛山市顺德区中意液压有限公司 Telescopic tilt cylinder type hydraulic motor and machining method of eccentric spherical surface of telescopic tilt cylinder type hydraulic motor
CN106930916A (en) * 2017-04-25 2017-07-07 中国海洋大学 A kind of dynamic shell type multiaction water hydraulic radial plunger pump
CN106930916B (en) * 2017-04-25 2019-03-15 中国海洋大学 A kind of dynamic shell type multiaction water hydraulic radial plunger pump
CN107939594A (en) * 2017-11-08 2018-04-20 中国航空工业集团公司金城南京机电液压工程研究中心 A kind of radial plunger piston motor
CN108001671A (en) * 2017-11-08 2018-05-08 中国航空工业集团公司金城南京机电液压工程研究中心 A kind of aircraft nose wheel turning actuator
CN107939594B (en) * 2017-11-08 2019-11-19 中国航空工业集团公司金城南京机电液压工程研究中心 A kind of radial plunger piston motor

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Granted publication date: 20100811