CN114109757A - Motion mechanism of small-displacement high-pressure high-rotation-speed oblique-shaft type quantitative motor - Google Patents
Motion mechanism of small-displacement high-pressure high-rotation-speed oblique-shaft type quantitative motor Download PDFInfo
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- CN114109757A CN114109757A CN202111558952.1A CN202111558952A CN114109757A CN 114109757 A CN114109757 A CN 114109757A CN 202111558952 A CN202111558952 A CN 202111558952A CN 114109757 A CN114109757 A CN 114109757A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 230000033001 locomotion Effects 0.000 title claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 description 11
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
- F04B1/124—Pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2021—Details or component parts characterised by the contact area between cylinder barrel and valve plate
- F04B1/2028—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2035—Cylinder barrels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/22—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
- F04B1/24—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons inclined to the main shaft axis
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a movement mechanism of a small-displacement high-pressure high-rotation-speed oblique shaft type quantitative motor, which comprises an output shaft with a cam disc at the tail end and a cylinder body arranged at a certain inclined included angle with the output shaft, wherein a plunger used for pushing the output shaft to rotate is arranged in a plunger hole formed in the cylinder body in a sliding manner, and a ball head formed at the front end of the plunger is hinged with a ball socket formed on the cam disc of the output shaft; the front end surface of the cylinder body is formed with a concave cavity with the depth larger than the thickness of the cam disc, the annular top surface of the concave cavity is processed with a tooth groove forming a gear ring, the output shaft is fixedly sleeved with a gear ring clinging to the cam disc, and the gear ring is processed with a rack which is meshed with the tooth groove of the cylinder body and is used for driving the cylinder body to synchronously rotate along with the output shaft. The cylinder body of the invention adopts a meshing mode for transmission, has simple structure, can effectively avoid the tangential force born by the plunger, lightens the weight of the plunger, improves the rotating speed of the motor and prolongs the service life of the motor.
Description
Technical Field
The invention relates to a manufacturing technology of a hydraulic motor, in particular to an inclined shaft type quantitative motor, and specifically relates to a movement mechanism of the inclined shaft type quantitative motor with small displacement, high pressure and high rotation speed.
Background
At present, in a commonly used movement mechanism of a quantitative plunger motor, high-pressure oil is communicated to the bottom of a plunger in a general force transmission mode, and force is transmitted to an output shaft through the plunger due to the fact that the plunger and the output shaft form a certain angle, so that the output shaft rotates to achieve power output. The output shaft can drive the plunger head to rotate in the rotating process, so that a certain included angle is formed between the head end and the tail end of the plunger, and then the plunger wall is attached to the plunger hole wall formed by the cylinder body to drive the cylinder body to rotate. In the process, the tail end of the plunger slides in the plunger hole, and the plunger wall is attached to and extruded with the wall of the plunger hole, so that the plunger wall and the wall of the plunger hole are easily abraded, and the service life of the motor is influenced. In particular, the plunger is required to bear a certain tangential force for driving the cylinder body to rotate, which determines that the diameter of the plunger cannot be too small, and the diameter of the plunger limits the rotating speed of the motor to a certain extent. Moreover, the motor has high requirement on the processing precision of the plunger, thereby causing the problems of high production cost, high processing difficulty and the like.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a movement mechanism of a small-displacement high-pressure high-rotation-speed oblique shaft type quantitative motor, which is easy to process, low in production cost and capable of preventing a plunger from bearing tangential force.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a movement mechanism of a small-displacement high-pressure high-rotation-speed oblique-shaft type quantitative motor comprises an output shaft with a cam disc at the tail end and a cylinder body arranged at a certain inclined included angle with the output shaft, wherein a plunger used for pushing the output shaft to rotate is arranged in a plunger hole formed in the cylinder body in a sliding manner, and a ball head formed at the front end of the plunger is hinged with a ball socket formed in the cam disc of the output shaft; the front end surface of the cylinder body is formed with a concave cavity with the depth larger than the thickness of the cam disc, the annular top surface of the concave cavity is processed with a tooth groove forming a gear ring, the output shaft is fixedly sleeved with a gear ring clinging to the cam disc, and the gear ring is processed with a rack which is meshed with the tooth groove of the cylinder body and is used for driving the cylinder body to synchronously rotate along with the output shaft.
In order to optimize the technical scheme, the specific measures adopted further comprise:
a positioning pin hole is processed on the output shaft, a positioning pin for preventing the gear ring from rotating relative to the output shaft is clamped in the positioning pin hole, and the positioning pin and the gear ring are processed with pin shaft holes which are penetrated and matched.
The output shaft is tightly matched and sleeved with a thrust bearing used for rotatably supporting the output shaft, and the thrust bearing comprises a rear conical thrust bearing which is tightly attached to the gear ring and used for preventing the output shaft from axially moving forwards and a front conical thrust bearing which is arranged at the front part of the rear conical thrust bearing and used for preventing the output shaft from axially moving backwards.
A space ring is additionally arranged between the front conical thrust bearing and the rear conical thrust bearing, the front annular end surface of the space ring is in abutting joint with the rear end surface of the outer ring of the front conical thrust bearing, and the rear annular end surface of the space ring is in abutting joint with the front end surface of the outer ring of the rear conical thrust bearing.
The front end of the output shaft, which is positioned at the front end where the front conical thrust bearing is installed, is provided with an external thread, and the external thread is spirally provided with a locking nut which is in abutting fit with the front end surface of the inner ring of the front conical thrust bearing and is used for preventing the thrust bearing from moving.
And a stop piece is additionally arranged between the locking nut and the inner ring of the front conical thrust bearing.
The ball socket is a semi-spherical ball socket which is larger than a hemisphere, a flattened annular surface is turned on the peripheral surface of the ball head, and the diameter S1 of a circle formed by the flattened annular surface is matched with the diameter S2 of a circle formed by the ball socket opening of the semi-spherical ball socket.
The diameter S2 of the circle formed by the socket opening of the over-hemispherical ball socket is smaller than that of the over-hemispherical ball socket; the diameter S1 of the circle formed by the flattened annular surface is smaller than that of the ball head; the diameter of the ball head is matched with that of the semi-spherical ball socket.
Compared with the prior art, the invention has the advantages that the front end of the cylinder body is formed with the gear ring consisting of a plurality of tooth grooves, the output shaft is fixedly sleeved with the gear ring, and the gear ring are meshed to form a gear transmission structure, so that the cylinder body can synchronously rotate under the driving of the output shaft. Because the rotation of cylinder body is driven by the output shaft, consequently the plunger is not receiving tangential force, and the diameter of plunger just can greatly reduced, and the weight of plunger is little, and the centrifugal force that receives when rotatory is little, and the corresponding rotational speed that just can improve the motor. In a similar way, the plunger does not drive the cylinder body to rotate to bear tangential force, so that abnormal abrasion caused by extrusion of the plunger and the cylinder body can be avoided, and the service lives of the plunger and the cylinder body are prolonged to the maximum extent.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the assembled structure of the plunger and the semi-spherical ball socket of the invention.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Wherein the reference numerals are: the device comprises an output shaft 1, a semi-spherical ball socket 1a, a positioning pin hole 1b, a cam disc 11, a cylinder body 2, a plunger hole 2a, a cavity 2b, a tooth groove 21, a plunger 3, a ball head 31, a flattened annular surface 32, a gear ring 4, a rack 41, a positioning pin 5, a front conical thrust bearing 61, a rear conical thrust bearing 62, a spacer 7, a locking nut 8 and a stop sheet 9.
Fig. 1 and 2 are schematic views of the structure of the present invention, as shown in fig. 1,
in the working process of a moving mechanism of a traditional oblique shaft type quantitative motor, a cylinder body rotates under the action of a plunger, so that the plunger needs to bear certain shearing force, the diameter of the plunger cannot be too small, and the rotating speed of the motor is limited to a certain extent by the diameter of the plunger. Particularly, the motion structure can lead the plunger wall to be attached and extruded with the wall of the plunger hole of the cylinder body, thereby causing the problem that the plunger wall and the plunger hole wall are easy to wear. The invention discloses a movement mechanism of a small-displacement high-pressure high-rotation-speed oblique shaft type quantitative motor, which can solve the problem of abnormal abrasion between a plunger and a cylinder body in the use process of the movement mechanism of the traditional motor, greatly reduce the weight of the traditional plunger and improve the rotation speed of the motor.
As shown in figure 1, the motion mechanism of the small-displacement high-pressure high-rotation-speed oblique shaft type quantitative motor comprises an output shaft 1 and a cylinder body 2, wherein a cam plate 11 is formed at the tail end of the output shaft 1, the cam plate 11 is a disk body with a certain thickness, and a ball socket is processed on the disk surface of the cam plate 11. The cylinder body 2 is arranged at the rear end of the output shaft 1 in a certain inclined included angle mode, a plunger hole 2a is formed in the cylinder body 2, and a plunger 3 is arranged in the plunger hole 2a in a liquid-tight sliding mode. The front end of the plunger 3 is formed with a ball head 31, the ball head 31 is hinged with the ball socket of the cam plate 11 of the output shaft 1, when high-pressure oil is introduced into the plunger hole 2a, the high-pressure oil acts on the bottom of the plunger 3 to push the plunger 3, so that the plunger 3 pushes the output shaft 1 to rotate, and power output is realized. As shown in fig. 1, the main contributions of the present invention are: the front end surface of the cylinder block 2 is formed with a cavity 2b having a depth greater than the thickness of the cam plate 11, and the cavity 2b enables a portion of the lower portion of the cam plate 11 of the output shaft 1 to be located in the cavity 2 b. The recess 2b is formed with an annular top surface on the periphery thereof, and teeth grooves 21 are formed on the annular top surface at equal intervals in the circumferential direction, and the plurality of teeth grooves 21 form a ring gear formed at the front end of the cylinder 2. The output shaft 1 is fixedly sleeved with a gear ring 4 tightly attached to the cam plate 11, and the gear ring 4 is provided with a rack 41 meshed with the tooth groove 21 of the cylinder body 2. The gear ring 4 and the gear ring form a gear transmission mechanism, so that the output shaft 1 can drive the cylinder body 2 to synchronously rotate along with the output shaft 1 through the matching of the gear ring 4 and the gear ring. Because the rotation of the cylinder body 2 is driven by the output shaft 1, the extrusion of the plunger and the cylinder body is avoided due to the meshing form, so that the abnormal abrasion of the plunger and the cylinder body can be effectively avoided, and the processing precision of the surface of the plunger is reduced. Meanwhile, the diameter of the plunger can be greatly reduced because the plunger is not subjected to tangential force. The diameter of the plunger is reduced, the weight is lightened, the centrifugal force applied during rotation is small, and accordingly the rotating speed of the motor can be improved.
In the embodiment, as shown in fig. 2, a positioning pin hole 1b is processed on an output shaft 1 of the present invention, a positioning pin 5 for preventing a gear ring 4 from rotating circumferentially relative to the output shaft 1 is clamped in the positioning pin hole 1b, and the positioning pin 5 is inserted and matched with a pin hole processed on the gear ring 4. The positioning pin 5 passes through the pin shaft hole of the gear ring 4 and is positioned and inserted in the positioning pin hole, so that the gear ring 4 cannot rotate relative to the output shaft 1.
In the embodiment of the present invention, the output shaft 1 is tightly fitted with two thrust bearings for rotatably supporting the output shaft 1, and the two thrust bearings include a rear tapered thrust bearing 62 disposed closely to the ring gear 4 and a front tapered thrust bearing 61 disposed in front of the rear tapered thrust bearing 62. The two thrust bearings are both roller axial thrust bearings, the rear tapered thrust bearing 62 can effectively prevent the output shaft 1 from moving forwards axially, and the front tapered thrust bearing 61 can effectively prevent the output shaft 1 from moving backwards axially.
In the embodiment of the present invention, a spacer 7 is interposed between the front tapered thrust bearing 61 and the rear tapered thrust bearing 62. The spacer 7 prevents the two thrust bearings from interfering with each other. The front annular end surface of the spacer 7 is abutted and matched with the rear end surface of the outer ring of the front tapered thrust bearing 61, and the rear annular end surface of the spacer 7 is abutted and matched with the front end surface of the outer ring of the rear tapered thrust bearing 62.
In the embodiment, the front end of the output shaft 1, which is positioned at the front end where the front tapered thrust bearing 61 is installed, is processed with an external thread, and the external thread is spirally provided with a locking nut 8. The top pressing surface of the locking nut 8 is matched with the front end surface of the inner ring of the front conical thrust bearing 61 in a top pressing mode, and the locking nut 8 is used for preventing the two thrust bearings from moving in an axial direction.
In the embodiment, a stop piece 9 is additionally arranged between the lock nut 8 and the inner ring of the front tapered thrust bearing 61.
In the prior art, when the oblique shaft type quantitative motor is used, a matching mode of pressing a seven-hole pressing plate is generally adopted between a ball head of a plunger and a ball socket of an output shaft 1. The ball head of the plunger is placed in a more than hemispherical ball socket formed by combining the output shaft 1 and the seven-hole pressing plate together, and the seven-hole pressing plate is glued and locked and fixed on the output shaft 1 through a pressing plate screw. The structure is that firstly, a ball socket which is more than hemispherical is formed by matching two sub-ball sockets, one of the two sub-ball sockets is formed on the cam plate 11 of the output shaft 1, and the other sub-ball socket is formed on the seven-hole pressure plate. Two matched ball distributing sockets are separately machined, the dimensional tolerance is difficult to keep consistent, the requirements on the position precision of the seven-hole pressing plate and the ball distributing socket on the output shaft 1 are high, the phenomenon that a single plunger ball head is clamped and blocked easily in the assembling process and cannot rotate flexibly occurs easily. When needs are disassembled, glue is applied to the locking screw, so the disassembling is difficult, and the phenomenon that the whole rotor assembly is damaged due to the falling of the locking screw can also occur in the using process of a customer, so the using requirements of convenience and quickness in current maintenance and assembly can not be met.
As shown in FIG. 2, the ball socket machined on the cam plate 11 is a semi-hemispherical ball socket 1a, a flattened annular surface 32 is turned on the peripheral surface of the ball head 31, and the diameter S1 of the circle formed by the flattened annular surface 32 is matched with the diameter S2 of the circle formed by the ball socket opening of the semi-hemispherical ball socket 1 a. The diameter S2 of the circle formed by the socket opening of the semi-spherical socket 1a is smaller than that of the semi-spherical socket; the diameter S1 of the circle formed by the flattened annular surface 32 is smaller than the diameter of the ball head 31; the diameter of the ball head 31 is matched with that of the semi-spherical ball socket.
The invention improves the ball socket structure of the output shaft 1, and because the included angle between the output shaft 1 and the plunger 3 of the oblique shaft type quantitative motor is fixed, the ball socket is designed into a semi-spherical ball socket 1a which is larger than a hemisphere at present from the original hemisphere. The size of the socket opening of the semi-spherical socket 1a is matched with the size of the flat annular surface 32 on the plunger ball head, so that the ball head 31 of the plunger 3 can be horizontally installed in the semi-spherical socket 1a of the output shaft 1, as shown in fig. 2. When the plunger 3 is rotated to the working angle, as shown in fig. 1, the plunger ball cannot fall out of the over-hemispherical ball socket 1a of the output shaft 1. The improved matching mode reduces parts such as a seven-hole pressing plate, a pressing plate screw and the like, the cost is reduced, and then the semi-spherical ball socket 1a is formed at one time and is matched with the plunger ball head more smoothly and flexibly. The plunger is more convenient to assemble and disassemble, and the condition that the whole motor is damaged due to falling off of the locking screw and damage of the seven-hole pressing plate can be reduced.
The moving mechanism can avoid abnormal abrasion caused by extrusion of the plunger and the cylinder body, and can reduce the diameter of the plunger and improve the rotating speed. In this mechanism, as shown in fig. 1, high-pressure oil is supplied to the bottom of the plunger 3, hydraulic pressure is transmitted to the output shaft 1 through the plunger 3 to rotate the output shaft 1, the output shaft 1 rotates while driving the ring gear 4 to move by the positioning pin 5, and the ring gear 4 and the cylinder 2 are engaged with the tooth grooves 21 through the rack 41 to keep synchronous rotation. This form of engagement avoids squeezing of the plunger 3 against the cylinder 2. The surface machining precision of the plunger 3 is reduced, and the machining difficulty is reduced. In addition, the plunger 3 is not subjected to tangential force, and the diameter of the plunger 3 can be greatly reduced. The plunger is light in weight, and the centrifugal force applied to the plunger during rotation is small, so that the rotating speed of the motor can be correspondingly increased.
While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by one skilled in the art without departing from the scope of the invention.
Claims (8)
1. A movement mechanism of a small-displacement high-pressure high-rotation-speed oblique-shaft type quantitative motor comprises an output shaft (1) with a cam disc (11) at the tail end and a cylinder body (2) arranged at a certain inclined included angle with the output shaft (1), wherein a plunger (3) for pushing the output shaft (1) to rotate is arranged in a plunger hole (2a) formed in the cylinder body (2) in a sliding mode, and a ball head (31) formed at the front end of the plunger (3) is hinged to a ball socket formed on the cam disc (11) of the output shaft (1); the method is characterized in that: the front end face molding of cylinder body (2) have cavity (2b) that the degree of depth is greater than the thickness of cam disc (11), processing has tooth's socket (21) that constitute the ring gear on the annular top surface of this cavity (2b), output shaft (1) go up to paste fixed the cover of cam disc (11) and be equipped with ring gear (4), ring gear (4) go up processing have tooth's socket (21) with cylinder body (2) mesh mutually and be used for driving cylinder body (2) along with output shaft (1) synchronous rotating's rack (41).
2. The motion mechanism of a small-displacement high-pressure high-speed oblique axis type quantitative motor as claimed in claim 1, wherein: the output shaft (1) on process and to have location pinhole (1b), the location clamps in this location pinhole (1b) and is equipped with and is used for preventing that ring gear (4) from rotating relative output shaft (1) locating pin (5), locating pin (5) and ring gear (4) on process and to have the round pin shaft hole to wear to establish to cooperate.
3. The motion mechanism of a small-displacement high-pressure high-speed oblique axis type quantitative motor as claimed in claim 2, wherein: the output shaft (1) go up the cooperation cover and be equipped with the thrust bearing who is used for rotating support output shaft (1), thrust bearing including close back toper thrust bearing (62) that is used for preventing output shaft (1) axial to move forward that contacts the ring gear (4) setting and set up in this back toper thrust bearing (62) the front portion be used for preventing output shaft (1) axial backward to move forward tapered thrust bearing (61).
4. A movement mechanism of a small displacement high pressure high speed oblique axis type quantitative motor as claimed in claim 3, wherein: a spacer ring (7) is additionally arranged between the front conical thrust bearing (61) and the rear conical thrust bearing (62), the front annular end face of the spacer ring (7) is in top connection and matching with the rear end face of the outer ring of the front conical thrust bearing (61), and the rear annular end face of the spacer ring (7) is in top connection with the front end face of the outer ring of the rear conical thrust bearing (62).
5. The motion mechanism of small-displacement high-pressure high-speed oblique axis type quantitative motor as claimed in claim 4, wherein: the front end of the output shaft (1) positioned at the front conical thrust bearing (61) is provided with an external thread, and the external thread is spirally provided with a locking nut (8) which is in abutting fit with the front end surface of the inner ring of the front conical thrust bearing (61) and is used for preventing the thrust bearing from moving.
6. The motion mechanism of small-displacement high-pressure high-speed oblique axis type quantitative motor as claimed in claim 5, wherein: and a stop piece (9) is additionally arranged between the locking nut (8) and the inner ring of the front conical thrust bearing (61).
7. The motion mechanism of small-displacement high-pressure high-speed oblique axis type quantitative motor as claimed in claim 6, wherein: the ball socket is a semi-spherical ball socket (1a) which is larger than the semi-spherical shape, a flattened annular surface (32) is turned on the peripheral surface of the ball head (31), and the diameter S1 of a circle formed by the flattened annular surface (32) is matched with the diameter S2 of a circle formed by the ball socket opening of the semi-spherical ball socket (1 a).
8. The motion mechanism of a small-displacement high-pressure high-speed oblique axis type quantitative motor as claimed in claim 7, wherein: the diameter S2 of a circle formed by the socket opening of the over-hemispherical socket (1a) is smaller than that of the over-hemispherical socket; the diameter S1 of a circle formed by the flattened annular surface (32) is smaller than that of the ball head (31); the diameter of the ball head (31) is matched with that of the semi-spherical ball socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111558952.1A CN114109757A (en) | 2021-12-20 | 2021-12-20 | Motion mechanism of small-displacement high-pressure high-rotation-speed oblique-shaft type quantitative motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111558952.1A CN114109757A (en) | 2021-12-20 | 2021-12-20 | Motion mechanism of small-displacement high-pressure high-rotation-speed oblique-shaft type quantitative motor |
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| Publication Number | Publication Date |
|---|---|
| CN114109757A true CN114109757A (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111558952.1A Pending CN114109757A (en) | 2021-12-20 | 2021-12-20 | Motion mechanism of small-displacement high-pressure high-rotation-speed oblique-shaft type quantitative motor |
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| CN (1) | CN114109757A (en) |
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| JPS62218664A (en) * | 1986-03-18 | 1987-09-26 | Honda Motor Co Ltd | Swash plate type hydraulic device |
| JPH0364672A (en) * | 1989-07-31 | 1991-03-20 | Honda Motor Co Ltd | Swash plate type hydraulic device |
| DE4214765A1 (en) * | 1992-05-04 | 1993-11-11 | Sachsenhydraulik Gmbh | Piston-slipper connection for axial piston swashplate pump - uses ball with flattened surfaces attached to neck of slipper |
| CN201377475Y (en) * | 2009-04-29 | 2010-01-06 | 国家林业局哈尔滨林业机械研究所 | Oblique-shaft type axial piston motor with synchronous gear |
| CN202900558U (en) * | 2012-11-26 | 2013-04-24 | 重庆红江机械有限责任公司 | Inclined-shaft type ration plunger pump |
| CN103850904A (en) * | 2012-11-28 | 2014-06-11 | 北京华德液压工业集团有限责任公司 | Oblique-shaft type axial plunger pump/motor with novel-structured plunger |
| CN104074738A (en) * | 2014-06-30 | 2014-10-01 | 徐州徐工液压件有限公司 | Plunger pump and plunger motor and closing-in-prevention forward-packet plunger sliding boot assembly thereof |
-
2021
- 2021-12-20 CN CN202111558952.1A patent/CN114109757A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62218664A (en) * | 1986-03-18 | 1987-09-26 | Honda Motor Co Ltd | Swash plate type hydraulic device |
| JPH0364672A (en) * | 1989-07-31 | 1991-03-20 | Honda Motor Co Ltd | Swash plate type hydraulic device |
| DE4214765A1 (en) * | 1992-05-04 | 1993-11-11 | Sachsenhydraulik Gmbh | Piston-slipper connection for axial piston swashplate pump - uses ball with flattened surfaces attached to neck of slipper |
| CN201377475Y (en) * | 2009-04-29 | 2010-01-06 | 国家林业局哈尔滨林业机械研究所 | Oblique-shaft type axial piston motor with synchronous gear |
| CN202900558U (en) * | 2012-11-26 | 2013-04-24 | 重庆红江机械有限责任公司 | Inclined-shaft type ration plunger pump |
| CN103850904A (en) * | 2012-11-28 | 2014-06-11 | 北京华德液压工业集团有限责任公司 | Oblique-shaft type axial plunger pump/motor with novel-structured plunger |
| CN104074738A (en) * | 2014-06-30 | 2014-10-01 | 徐州徐工液压件有限公司 | Plunger pump and plunger motor and closing-in-prevention forward-packet plunger sliding boot assembly thereof |
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Application publication date: 20220301 |