CN204755176U - Double speed tilt cylinder formula hydraulic motor - Google Patents

Double speed tilt cylinder formula hydraulic motor Download PDF

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Publication number
CN204755176U
CN204755176U CN201520436057.6U CN201520436057U CN204755176U CN 204755176 U CN204755176 U CN 204755176U CN 201520436057 U CN201520436057 U CN 201520436057U CN 204755176 U CN204755176 U CN 204755176U
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China
Prior art keywords
hole
piston
bent axle
hydraulic motor
tilt cylinder
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Application number
CN201520436057.6U
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Chinese (zh)
Inventor
刘伟涛
翟琨
叶兵兵
王建斌
戎正林
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NINGBO XINHONG HYDRAULIC CO Ltd
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NINGBO XINHONG HYDRAULIC CO Ltd
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Priority to CN201520436057.6U priority Critical patent/CN204755176U/en
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Abstract

The utility model discloses a double speed tilt cylinder formula hydraulic motor, including mutual split cap and casing, cap one side be provided with logical food tray and with the bent axle rotatory food tray of joining in marriage together, the upper end of cap is provided with oil inlet B, and oil inlet B is connected with logical oil pipe way, and it has slide bearing to lead to oil pipe way end -to -end connection, and slide bearing one side is connected with belleville spring, and slide bearing's upper portion is provided with the ring channel, the periphery of bent axle is provided with the bearing housing, bent axle and middle piston hole A, the piston hole B who is in upper and lower position that be provided with of bearing housing, and piston hole A, piston hole B's inside is provided with piston A, piston B respectively, set up porose A, hole B, hole C on the bent axle, hole A and piston hole A communicate with each other, hole B and piston hole B, and hole C communicates with each other with the ring channel. The utility model discloses a tilt cylinder formula hydraulic motor passes through piston oil feed on one side, and the another side piston is the oil feed not, realizes that the bearing housing reciprocates in the middle of the bent axle to this changes eccentricly, thereby changes the rotational speed.

Description

A kind of double speed tilt cylinder type hydraulic motor
Technical field
The utility model relates to a kind of oil hydraulic motor, more specifically, relates to a kind of double speed tilt cylinder type hydraulic motor.
Background technique
As the critical piece provided in high-torque hydraulic system, the quality of radial plunger type motor directly affects the machine work efficiency under actual conditions.It reliablely and stablely can work under very low rotating speed, directly can be connected with needing the operation mechanism of low-speed running, complete machine structure is simplified, also there is efficiency and can accept the advantage longer with the life-span, so in recent years there is larger development, be widely used in the hydraulic system of light industry and machinery, engineering machinery, mining machinery, handling machinery, ship deck machinery and farm machinery etc.
Tilt cylinder type hydraulic motor is the one in radial plunger piston motor.The axis of tilt cylinder and piston is all the time by the center of crankshaft bearing bush, thus tilt cylinder and piston are without lateral force, high pressure oil enters the oil distribution casing rotated together with bent axle from the filler opening of logical food tray, and enter upper piston area through cap runner and tilt cylinder earrings place and enter piston lower portion counter balance pocket through throttling pore again, now the piston of logical high pressure oil is under oil pressure effect, by sphere bearing case and roller, power is delivered on eccentric shaft, bent axle rotates under eccentric moment effect, along with high pressure oil enters, piston to axis direction move until lower dead centre extremely, piston cavity starts to connect with return opening by oil distribution casing, now piston pushed away from axis direction and moves under the promotion of bent axle, piston cavity volume reduces, low pressure oil is through tilt cylinder earrings place passage, housing runner, oil distribution casing, logical food tray is discharged to return opening, each piston connects high pressure and low pressure according to this, the piston of each logical high pressure is added in the same way to the driving moment that output shaft center produces, rotary torque is stablized with regard to making hydraulic motor output shaft obtain continuously.When changing oily flow path direction, just can change turning to of oil hydraulic motor, if thrust plate to be turned over 180 degree of assemblings, also can realize the reversion of oil hydraulic motor.
The product great majority of the multiple industry such as boats and ships, engineering, colliery are transferred for hoisting of weight, and user wishes to transfer or in hollow hook lowering process at weight, and the rotating speed of motor can be quicker, can save a lot of time and cost like this.In reel or after motor, add clutch, when weight is transferred, clutch is opened, empty hook and weight free releasing, although saved the time, this scheme cost is too high, volume is too large, and the momentum that the free releasing of weight produces is too large, and risk factor significantly rises.Therefore consider motors designs to become double-speed motor, with at a slow speed in heavy lift process, with quick in weight decentralization process.Change motor rotary speed and namely change the discharge capacity of motor, and change motor displacement and have two kinds of modes, one is the diameter changing motor piston, and another is the bias changing bent axle.
Model utility content
For solving the problems of the prior art, the utility model provides the double speed tilt cylinder type hydraulic motor that a kind of bias by changing bent axle realizes double speed function.
The utility model provides a kind of double speed tilt cylinder type hydraulic motor, comprise cap (1) and the housing (2) of mutual split, the oil distribution casing (4) being fixedly connected with logical food tray (3) outside cap and rotating together with bent axle (5), the upper end of described cap is provided with filler opening B (1a), filler opening B connects oil pipe road (6), oil pipe road end is connected with sliding bearing (7), sliding bearing side connects belleville spring (8), and the top of sliding bearing is provided with circular groove (9); The periphery of described bent axle is provided with bearing housing (10), be provided with in the middle of bent axle and bearing housing be in upper-lower position piston hole A (11), piston hole B (12), piston hole A, piston hole B inside be separately installed with piston A (14), piston B (15); Described bent axle has porose A (5a), hole B (5b), hole C (5c), hole A communicates with piston hole A, and hole B and piston hole B, hole C communicates with circular groove.
Described logical food tray is provided with filler opening A (3a), oil distribution casing is provided with the oil inlet passage (4a) be connected with filler opening A, oil inlet passage is communicated with hole C.
Shuttle valve is provided with in described oil distribution casing.
Also be provided with piston hole C (13) in the middle of described bent axle and bearing housing, piston hole C inside is provided with piston C (16).
The inside of piston B and piston C is separately installed with spring 1 (17), spring 2 (18).
Piston hole A is positioned at the top of piston hole B, piston hole C.
Described bent axle is also arranged porose D (5d), hole E (5e), hole F (5f), hole G (5g), hole H (5h), hole I (5i), hole A passing hole D, hole F, hole H communicate with piston hole A, and hole B passing hole E, hole G, hole I communicate with piston hole B.
The beneficial effects of the utility model are: by arranging the piston being in upper-lower position in the middle of bent axle and bearing housing, as long as piston oil-feed on one side, the not oil-feed of another side piston, just can realize bearing housing moving up and down in the middle of bent axle, change bias with this, thus change rotating speed.
Accompanying drawing explanation
Fig. 1 is the plan view of double speed tilt cylinder type hydraulic motor of the present utility model when filler opening B not oil-feed;
Fig. 2 is the plan view of double speed tilt cylinder type hydraulic motor of the present utility model when filler opening B oil-feed;
Fig. 3 is the partial enlarged drawing of the bent axle corresponding with Fig. 1 and circular groove connection part;
Fig. 4 is the partial enlarged drawing of the bent axle corresponding with Fig. 2 and circular groove connection part;
Fig. 5 is the plan view of crankshaft structure of the present utility model;
Fig. 6 is the left view of crankshaft structure of the present utility model.
In figure,
1, cap; 1a, filler opening B; 2, housing; 3, logical food tray; 3a, filler opening A; 4, oil distribution casing; 4a, oil inlet passage; 5, bent axle; 5a, hole A; 5b, hole B; 5c, hole C; 5d, hole D; 5e, hole E; 5f, hole F; 5g, hole G; 5h, hole H; 5i, hole I; 5j, hole J; 5k, hole K; 6, oil pipe road; 7, sliding bearing; 8, belleville spring; 9, circular groove; 10, bearing housing; 11, piston hole A; 12, piston hole B; 13, piston hole C; 14, piston A; 15, piston B; 16, piston C; 17, spring 1; 18, spring 2.
Embodiment
Below in conjunction with drawings and Examples, explanation is explained in detail to structure of the present utility model.
When flow rate of hydraulic system is certain, by formula: the rotating speed=flow system flow/motor displacement of motor learns that the speed of motor rotary speed depends on the displacement size of motor, discharge capacity is less, and rotating speed is faster, and discharge capacity is larger, rotating speed is slower, and the number of square * 2* crankshaft eccentric * plunger of the discharge capacity of motor=3.14* plug radius, thus draw: when crankshaft eccentric is larger, motor displacement is larger, crankshaft eccentric is less, and motor displacement is less.Double speed tilt cylinder type hydraulic motor of the present utility model just by changing the bias of bent axle, changes rotating speed.
As shown in Figure 1 and Figure 2, a kind of double speed tilt cylinder type hydraulic motor of the present utility model, comprise cap 1 and the housing 2 of mutual split, the oil distribution casing 4 being fixedly connected with logical food tray 3 and rotating together with bent axle 5 of cap 1, the upper end of cap 1 is provided with filler opening B1a, and filler opening B1a is connected with oil pipe road 6, and oil pipe road 6 end is connected with sliding bearing 7, sliding bearing 7 side connects belleville spring 8, and the top of sliding bearing is provided with circular groove 9; The periphery of bent axle 5 is provided with bearing housing 10, being provided with the piston hole A11, the piston hole B12 that are in upper-lower position, in order to increase dynamics, being also provided with piston hole C13 in the middle of bent axle 5 and bearing housing 10; Piston hole A11 is positioned at the top of piston hole B12 and piston hole C13.The inside of piston hole A11, piston hole B12, piston hole C13 is separately installed with piston A14, piston B15, piston C16; Described bent axle 5 is arranged porose A5a, hole B5b, hole C5c, hole A5a communicates with piston hole A11, and hole B5b communicates with piston hole B12, piston hole C13, and hole C5c communicates with circular groove 9.
As shown in Figure 1, Figure 3, when filler opening B1a not oil-feed, belleville spring 8 promotes sliding bearing 7 and withstands cap 1 to left movement, by circular groove 9, hole A5a and hole C5c is communicated, thus promotion piston A14 moves upward, and increases eccentric, and discharge capacity becomes large, spin down; As shown in Figure 2, Figure 4 shows, when filler opening B1a oil-feed, input pressure is greater than the pressure of belleville spring 8, promote sliding bearing 7 to move right, by circular groove 9, hole B5b and hole C5c is communicated, and promotion piston B15, piston C16 move upward, reduce eccentric, discharge capacity diminishes, and rotating speed speeds.By the side-to-side movement of sliding bearing 7, thus drive the movement of circular groove 9, make the piston upwards of different parts, thus change eccentric, rotating speed is changed.
Logical food tray 3 is provided with filler opening A3a, and oil distribution casing 4 is provided with the oil inlet passage 4a be connected with filler opening A3a, oil inlet passage 4a is communicated with hole C5c.As shown in Figure 5, Figure 6, bent axle 5 is also arranged porose D5d, hole E5e, hole F5f, hole G5g, hole H5h, hole I5i.Hole A5a passing hole D5d communicates with hole F5f, hole J5j (hole F5f and hole J5j integrally opens, and hole J5j plug is blocked), and hole F5f passing hole H5h communicates with piston hole A11; Finally achieve communicating of hole A5a and piston hole A11; Hole B5b passing hole E5e communicates with hole G5g, hole K5k, and (hole G5g and hole K5k integrally opens, hole K5k plug is blocked), hole G5g passing hole I5i communicates with piston hole B, piston hole C, finally realizes hole B5b and piston hole B12, the communicating of piston hole C13.Hole D5d, hole E5e, hole F5f, hole G5g, hole H5h, hole I5i are transitional pore.
When filler opening A3a oil-feed on logical food tray 3, hole A5a, hole D5d, hole F5f, hole H5h, piston hole A11 communicate, and such fluid enters piston hole A11, thus promote moving upward of piston A14, piston A14 pushing shaft bearing sleeve 10 moves, thus increases crankshaft eccentric; Or hole B5b, hole E5e, hole G5g, hole I5i communicate with piston hole B12, piston hole C13, fluid enters in piston hole B12, piston hole C13, thus promotion piston B15, piston C16 move upward, piston B15, piston C16 pushing shaft bearing sleeve 10 move, thus reduce crankshaft eccentric.
Shuttle valve is provided with in oil distribution casing 4.The object of such setting be make to be shunted by the fluid of oil distribution casing 4, be communicated with hole C5c by oil inlet passage 4a by a fluid part for oil distribution casing 4 periphery, thus make hole C5c have fluid to pass through always.
The inside of piston B15 and piston C16 is respectively arranged with spring 117, spring 218.The object of such setting is when filler opening B1a not oil-feed, and when piston B15 and piston C16 returns to original state, spring 117, spring 218 play the effect of buffering.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all do in the utility model flesh and blood any amendment, equivalent to replace and simple modifications etc., all should be included within protection domain of the present utility model.

Claims (7)

1. a double speed tilt cylinder type hydraulic motor, comprise cap (1) and the housing (2) of mutual split, the oil distribution casing (4) being fixedly connected with logical food tray (3) outside cap and rotating together with bent axle (5), it is characterized in that: the upper end of described cap is provided with filler opening B (1a), filler opening B connects oil pipe road (6), oil pipe road end is connected with sliding bearing (7), sliding bearing side connects belleville spring (8), and the top of sliding bearing is provided with circular groove (9); The periphery of described bent axle is provided with bearing housing (10), be provided with in the middle of bent axle and bearing housing be in upper-lower position piston hole A (11), piston hole B (12), piston hole A, piston hole B inside be separately installed with piston A (14), piston B (15); Described bent axle has porose A (5a), hole B (5b), hole C (5c), hole A communicates with piston hole A, and hole B and piston hole B, hole C communicates with circular groove.
2. double speed tilt cylinder type hydraulic motor according to claim 1, it is characterized in that: described logical food tray is provided with filler opening A (3a), oil distribution casing is provided with the oil inlet passage (4a) be connected with filler opening A, oil inlet passage is communicated with hole C.
3. double speed tilt cylinder type hydraulic motor according to claim 1, is characterized in that: be provided with shuttle valve in described oil distribution casing.
4. double speed tilt cylinder type hydraulic motor according to claim 1, is characterized in that: be also provided with piston hole C (13) in the middle of described bent axle and bearing housing, piston hole C inside is provided with piston C (16).
5. double speed tilt cylinder type hydraulic motor according to claim 4, is characterized in that: the inside of piston B and piston C is separately installed with spring 1 (17), spring 2 (18).
6. double speed tilt cylinder type hydraulic motor according to claim 4, is characterized in that: piston hole A is positioned at the top of piston hole B, piston hole C.
7. double speed tilt cylinder type hydraulic motor according to claim 1, it is characterized in that: described bent axle is also arranged porose D (5d), hole E (5e), hole F (5f), hole G (5g), hole H (5h), hole I (5i), hole A passing hole D, hole F, hole H communicate with piston hole A, and hole B passing hole E, hole G, hole I communicate with piston hole B.
CN201520436057.6U 2015-06-24 2015-06-24 Double speed tilt cylinder formula hydraulic motor Active CN204755176U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520436057.6U CN204755176U (en) 2015-06-24 2015-06-24 Double speed tilt cylinder formula hydraulic motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520436057.6U CN204755176U (en) 2015-06-24 2015-06-24 Double speed tilt cylinder formula hydraulic motor

Publications (1)

Publication Number Publication Date
CN204755176U true CN204755176U (en) 2015-11-11

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Application Number Title Priority Date Filing Date
CN201520436057.6U Active CN204755176U (en) 2015-06-24 2015-06-24 Double speed tilt cylinder formula hydraulic motor

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105822493A (en) * 2016-03-18 2016-08-03 宁波新宏液压有限公司 Oscillating cylinder type hydraulic motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105822493A (en) * 2016-03-18 2016-08-03 宁波新宏液压有限公司 Oscillating cylinder type hydraulic motor

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