CN1049721C - Limiting protection structure for radial plunger type hydraulic motor and pump - Google Patents
Limiting protection structure for radial plunger type hydraulic motor and pump Download PDFInfo
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- CN1049721C CN1049721C CN94102439A CN94102439A CN1049721C CN 1049721 C CN1049721 C CN 1049721C CN 94102439 A CN94102439 A CN 94102439A CN 94102439 A CN94102439 A CN 94102439A CN 1049721 C CN1049721 C CN 1049721C
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- motor
- plunger
- odd number
- supporting
- hydraulic motor
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Abstract
The present invention relates to a protecting structure for a radial plunger type hydraulic motor and a pump in over-position and journal sticking, which belongs to the improvement of motors. A star wheel (1) arranged in a casing (10) is made into a polygonal structure (13) with an odd number of sides, and the inside of the casing is made to be broken at both sides of a supporting seat (11). An inner polygonal structure (14) with an equal odd number of sides, which is symmetrical with the star wheel and contains a moving support (5), is arranged, and a plunger in a cylinder (2) of the star wheel is connected with a nut of the support (5) supported on the supporting seat (11) so as to form a press cover (12). The over-position protecting mechanism is simple in structure and can ensure that the parts of the motor are free from damage when dirty oil causes journal sticking to the motor. The hydraulic motor is good in performance through six years' production practice. After the over-position protecting mechanism is additionally arranged, the over-position protecting mechanism can ensure that the performance of the motor is better, the motor is more reliable and practical, and the motor is more favorable to be popularized and used on a rotary mechanism.
Description
The invention belongs to the improvement of radial piston hydraulic motor and pump.
Oil hydraulic motor and oil hydraulic pump commonly used have gear type, blade type, plunger type etc., the present invention only relates to and has three, five, seven, nine ... Deng eccentric odd number multi-cylinder radial plunger hydraulic motor and pump, patent of invention CN85103508 is the radial piston hydraulic motor concrete structure that example is described the applicant's invention in detail with five cylinder oil hydraulic motors, this motor is that housing is rotary, it has a rotation pentacle weel (1), the oil cylinder (2) that five radial arrangement of dividing equally are arranged on it, have in each oil cylinder one can reciprocating within it plunger (3), described plunger has hollow hole and holds balance spring (4), plunger head is protruding spherical sphere, agree with mutually with a concave ball support (5) with same radius, described pentacle weel is bearing on the eccentric body of eccentric shaft (7) by the cylindrical center bore (6) that is arranged on its center portion, have between described oil cylinder (2) and the center hole (6) and join oily fenestra (8) and be communicated with, pressure oil duct and oil return duct are arranged on the eccentric shaft (7), respectively be arranged on the eccentric body cylindrical on the oily runner (9) of joining communicate; Pentacle weel (1) is contained in the housing (10), housing (10) all is contained on the front and rear cover with eccentric shaft (7), there are 5 plane bearing seats of dividing equally (11) with its one described housing (10) inboard, supporting plunger supporting (5) and plunger (3) thereon combines as a whole with nut, under free state, can make plunger (3) in the space of supporting (5) and nut, do the axial and radial displacement of trace, and can rotate, during work rigid joint.
Above-mentioned five cylinder oil hydraulic motors have been made three motors with different parameters, and data see the following form
1
#, 2
#Motor has all passed through testing property and hoisting test, and is functional, " the Liao Dynasty's brocade 1 under Jinzhou aquatic products research institute
#" take turns on the stable car of oceanographic research ship (80 horsepowers of fishing vessels), changing former belt transmission July nineteen eighty-three is 2
#The hydraulic transmission of motor (this stable car mainly as hoisting heavy and weigh anchor), this motor from July to 1988 nineteen eighty-three year moved the long-term production run nearly 500 hours functional.
3
#Motor is for satisfying the windlass torque demand in design in 1989, be near completion when hanging last and hanging 5 tons of weights at hoisting test, having full load mode moment, eccentric shaft and pentacle weel locking (abbreviation seize), motor has produced offside, and supporting and nut are destroyed.The inventor has delivered " dehiscing to calculate and the mechanical synchronization apparatus " literary composition, has solved the offside problem of puzzled this class motor theoretically, 2
#Motor production practices in nearly 6 years have proved that also the oil hydraulic motor that does not have the mechanical synchronization apparatus does not produce offside problem, to 2
#, 3
#The investigation and analysis of motor use condition find that oil was earlier by filter when Jinzhou wheel used, and impurity is not with or seldom is with to the oil that enters motor, even it is dirtier, cleaning polishing back is used (Jinzhou wheel meets once slight seize in 6 years, the cleaning polishing continues to come into operation), 3 as usual
#Motor also has oil strainer, and is bad in the using process, the dirty full load mode seize that caused of oil, because full load mode is used to power and causes offside seize, and parts damages, current seize reason is not at motor.
The object of the invention provides the seize limiting protection mechanism of a kind of oil radial piston hydraulic motor and pump when dirty, guarantees that motor performance is more reliable.
The seize limiting protection mechanism of radial piston hydraulic motor of the present invention and pump realizes like this; warp-wise plunger hydraulic motor and pump main structure are that a star-wheel that is installed in the housing is arranged; which is provided with the oil cylinder of odd number radial arrangement; have in each oil cylinder one can reciprocating within it plunger; plunger head is protruding ball or recessed spherical sphere; agree with mutually with a recessed ball or a protruding Ball support with same radius; the housing inboard has and equates with the odd number of star-wheel symmetry and housing one and the plane bearing seat divided equally; supporting embolism supporting thereon combines as a whole with nut with plunger; seize limiting protection mechanism characteristics of the present invention is that star-wheel is made the odd number square structure; the housing inboard is formed in the interior odd number square structure of two disconnections of supporting base, embolism and supporting are combined as a whole with gland.
Motor limiting protection of the present invention mechanism; it is the reservation measure on the motor; simple in structure, when oil cleaned, this protection mechanism cut little ice; it only is the safeguard measure of reserving on the motor of making provision against emergencies; this is the necessary condition and the assurance of motor success, if run into when oil is dirty to cause seize, this protection mechanism promptly plays a role; this limiting protection mechanism will make the artificer design a motor performance, i.e. motor performance of success.
Because radial piston hydraulic motor and the pump of CN85103508 have passed through nearly 6 years production practices with five cylinder oil hydraulic motors; proved functional and its production practicability; now increased simple limiting protection mechanism; to make such motor performance more reliable, practical, will more be applicable on rotating machinery and apply.
Description of drawings:
Fig. 1 is the axial section that has the oil hydraulic motor of seize limiting protection mechanism, and it is that B-B line from Fig. 2 cuts the axial section that gets off;
Fig. 2 is the radial section figure of said motor, and it is that A-A line from Fig. 1 cuts the radial section figure that gets off;
Reference character:
(1) pentacle weel (2) oil cylinder (3) plunger (4) balance spring
(5) supporting (6) center hole (7) eccentric shaft (8) is joined oily fenestra
(9) join oily runner (10) housing (11) plane bearing and sit (12) gland
(13) the interior odd structure of the odd number square structure (14) of a star-wheel landing both sides disconnection
Fig. 1, the 2nd, a kind of five cylinder motor concrete structures of radial piston hydraulic motor and pump; this motor concrete structure was described in aforementioned; five square structures (13) are made with pentacle weel by motor seize limiting protection of the present invention mechanism; the housing inboard is formed in interior five square structures (14) that the supporting both sides disconnect; coupling nut is made gland (12); the odd number square structure of seize limiting protection of the present invention mechanism becomes with the cylinder number; three cylinder motors; star-wheel is made trigonal crystal structure; housing is made interior trigonal crystal structure; five cylinder motors are then made five above-mentioned square structures, by that analogy.
The edge that described pentacle weel is provided with oil cylinder is the plane, each plane is prolonged, five square structures have then been become, the circumferential section that can find out star-wheel from accompanying drawing 2 all has more a wedge angle part, and this has just increased the weight of star-wheel, for alleviating motor weight, only make five square structures as shown in Figure 1 at the intermediate portion of star-wheel thickness, intermediate portion thickness is decided to satisfy requirement of strength, the interior five square structure thickness of same housing also can with star-wheel five square structure consistency of thickness, also can be consistent with thickness of shell.
Coupling nut between described plunger and supporting is changed system into not threaded gland (12), be the micro-relative displacement needs between plunger and supporting when adapting to seize like this, need not gland directly be pressed into too big power during installation, plunger and supporting are combined as a whole, when the generation seize is offside, allow the gland trace to leave original position, make to fill in supporting and move freely, not got final product by obstruction very energetically, this no union (screwed)bonnet (UB can be with nonmetal oil resisting material manufacturing, gland is shaped as the right angle type that has little flange on one side, in supporting, the little flange of another side then can be real with the supporting button with the plunger shelves on right angle type long limit, and nonmetallic material are flexible, take place micro-ly when offside, gland just can leave original position by trace.
Plane bearing seat (11) in the described housing (10) is actually five square structures in, can be described as five sides in one deck, and the housing inboard can be described as five sides in two layers at interior five square structures (14) that the supporting both sides disconnect, five sides are parallel with the position, five square structure three every side planes of star-wheel in one or two layers, in one, two layer five sides between the two distance be a bit larger tham supporting (5) and gland (12) one side thickness sum.
When eccentric shaft (5) during in upper dead center 0 ' position, five side's interplanar gap values are more little good more in star-wheel five sides and the housing, press three kind of five cylinder motor of table 1, and the gap is got 0.5mm and got final product.When off-centre rotates to the 36 ° of seizes in least good operating mode angle; calculating the relative housing of five square wheels (1) corner is to the maximum about 1.5 ° and (can claims offside corner); be offside corner when reaching 1.5 °, five sides are stuck in star-wheel five sides and the housing, and motor can not rotate; be bearing in one, two layer and be subjected to protection in five side spaces; meanwhile, each plunger and supporting spherical are respectively made microdisplacement (for the part static balancing), and two spheres can not damage; each plunger and oil cylinder can be by pluckings, and this is also by 1989 3
#The offside inspection of motor heavy duty seize confirms.
1989 3
#During the motor seize; according to the actual destructiveness estimation of supporting; about 20 ° of offside corner; for uncontrollable, limiting protection of the present invention mechanism, offside corner is only about 1.5 °; and be controlled; be motor can carry out offside design control offside, so during seize in addition parts can not damage, repair a little or do not repair and can continue to use.
Claims (1)
1; the seize limiting protection mechanism of a kind of radial piston hydraulic motor and pump; this radial piston hydraulic motor and pump main structure are that a star-wheel that is installed in the housing is arranged; the oil cylinder that does not have the odd number radial arrangement on it; have in each oil cylinder one can reciprocating within it plunger; plunger head is protruding ball or recessed spherical sphere; agree with mutually with a recessed ball or a protruding Ball support with same radius; the housing inboard has and equates with the odd number of star-wheel symmetry and housing one and the plane bearing seat divided equally; supporting plunger supporting thereon combines as a whole with nut with plunger; seize limiting protection mechanism characteristics of the present invention is that star-wheel is made the odd number square structure; the housing inboard is formed in the interior odd number square structure that the supporting base both sides disconnect, plunger and supporting are combined as a whole with gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94102439A CN1049721C (en) | 1994-03-26 | 1994-03-26 | Limiting protection structure for radial plunger type hydraulic motor and pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94102439A CN1049721C (en) | 1994-03-26 | 1994-03-26 | Limiting protection structure for radial plunger type hydraulic motor and pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1100779A CN1100779A (en) | 1995-03-29 |
| CN1049721C true CN1049721C (en) | 2000-02-23 |
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ID=5030654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94102439A Expired - Lifetime CN1049721C (en) | 1994-03-26 | 1994-03-26 | Limiting protection structure for radial plunger type hydraulic motor and pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1049721C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103508A (en) * | 1985-05-01 | 1986-10-29 | 新河船舶修造厂 | The oil hydraulic motor of fixed type ball ream structure and pump |
| CN1052172A (en) * | 1989-11-28 | 1991-06-12 | 浙江省机电设计研究院 | Hydraulic motor with constant-stress rolling track and radial spherical pistons |
| CN2086317U (en) * | 1991-03-09 | 1991-10-09 | 宁波液压马达厂 | Hydraulic gearing with machinery brake characteristic |
-
1994
- 1994-03-26 CN CN94102439A patent/CN1049721C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103508A (en) * | 1985-05-01 | 1986-10-29 | 新河船舶修造厂 | The oil hydraulic motor of fixed type ball ream structure and pump |
| CN1052172A (en) * | 1989-11-28 | 1991-06-12 | 浙江省机电设计研究院 | Hydraulic motor with constant-stress rolling track and radial spherical pistons |
| CN2086317U (en) * | 1991-03-09 | 1991-10-09 | 宁波液压马达厂 | Hydraulic gearing with machinery brake characteristic |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1100779A (en) | 1995-03-29 |
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