CN215979677U - High-pressure cycloid hydraulic motor - Google Patents

High-pressure cycloid hydraulic motor Download PDF

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Publication number
CN215979677U
CN215979677U CN202121892721.XU CN202121892721U CN215979677U CN 215979677 U CN215979677 U CN 215979677U CN 202121892721 U CN202121892721 U CN 202121892721U CN 215979677 U CN215979677 U CN 215979677U
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inner cavity
main shaft
shell
gear
shaft
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Chinese (zh)
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王玉庭
王永玲
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Dalian Meilian Hydraulic Transmission Equipment Co ltd
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Dalian Meilian Hydraulic Transmission Equipment Co ltd
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Abstract

The utility model discloses a high-pressure cycloid hydraulic motor, which comprises: a housing; the four-hole square flange is arranged on the left side of the outer wall of the shell; the reinforcing ribs are arranged on the right side of the four-hole square flange in the circumferential direction; the number of the deep groove ball bearings is two, and the two deep groove ball bearings are respectively embedded in the left side of the inner cavity of the shell; the main shaft is inserted into the inner walls of the inner rings of the two deep groove ball bearings, and the middle shaft shoulder of the main shaft limits the deep groove ball bearings on the right side; and the shaft check ring is clamped in the middle position of the main shaft and limits the deep groove ball bearing positioned on the left side. This high pressure cycloid hydraulic motor, universal driving shaft and cycloid wheel and main shaft meshing effect are better, do not receive the uncertain influence of the eccentric distance of cycloid wheel, are difficult for producing great vibration, and small in noise, the motion is steady to can utilize endless hydraulic oil to lubricate, need not regularly to change hydraulic oil, need not to dismantle labour saving and time saving to hydraulic motor.

Description

High-pressure cycloid hydraulic motor
Technical Field
The utility model relates to the technical field of hydraulic transmission, in particular to a high-pressure cycloid hydraulic motor.
Background
The cycloid hydraulic motor is widely applied to the fields of engineering machinery, agricultural machinery, fishery machinery and the like due to the characteristics of simple structure, small volume, wide rotating speed range, large torque and the like, the cycloid hydraulic motor is fixedly connected with a shell by an inner gear ring, oil entering from an oil port pushes a rotor to revolve around a central point, the slowly rotating rotor is driven and output by a spline shaft to be called as the cycloid hydraulic motor, after the first cycloid motor is brought into the market, the motor with another concept is formed after decades of evolution, rollers are arranged in a built-in gear ring of the motor, the motor with the rollers can provide higher starting and operating torque, the rollers reduce friction, the efficiency is improved, an output shaft can also generate stable output even at very low rotating speed, the motor is quickly reversed by changing the direction of input and output flow, and equivalent torque is generated in two directions, each series of motors has various displacement options to meet various speed and torque requirements
The existing high-pressure cycloid hydraulic motor is characterized in that a cycloid wheel and a main shaft are driven through a linkage shaft which is obliquely arranged, the linkage shaft is connected with the cycloid wheel and the main shaft through splines, the eccentric distance of the cycloid wheel is uncertain, the linkage shaft is poor in meshing effect with the cycloid wheel and the main shaft, great vibration is easily generated in the operation process, the noise is large, the movement is not stable, lubricating liquid needs to be replaced regularly, and the lubricating liquid is not needed to be detached from the hydraulic motor in a non-specific mode, so that time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-pressure cycloid hydraulic motor, which at least solves the problems that a universal driving shaft in the prior art is poor in meshing effect and needs to be replaced by lubricating liquid.
In order to achieve the purpose, the utility model provides the following technical scheme: a high pressure gerotor hydraulic motor comprising: a housing; the four-hole square flange is arranged on the left side of the outer wall of the shell; the reinforcing ribs are arranged on the right side of the four-hole square flange in the circumferential direction; the number of the deep groove ball bearings is two, and the two deep groove ball bearings are respectively embedded in the left side of the inner cavity of the shell; the main shaft is inserted into the inner walls of the inner rings of the two deep groove ball bearings, and the middle shaft shoulder of the main shaft limits the deep groove ball bearings on the right side; the shaft retaining ring is clamped in the middle of the main shaft and limits the deep groove ball bearing on the left side; the left end cover is fixedly arranged at the left end of the shell through a short screw and limits the deep groove ball bearing positioned on the left side; the oil distribution mechanism is arranged at the right end of the shell; the driving mechanism is fixedly arranged at the right end of the oil distribution mechanism; the right end cover is fixedly arranged at the right end of the driving mechanism through a long screw; the linkage mechanism is arranged in the inner cavity of the shell; the lubricating mechanism is arranged at the bottom of the shell;
the oil distribution mechanism comprises: the oil inlet pipe is arranged at the right end of the top of the shell; the return pipe is arranged at the top of the shell and is positioned on the left side of the oil inlet pipe; the flow distribution assembly is arranged at the right end of the main shaft; and the partition disc is fixedly arranged at the right end of the shell.
Preferably, the flow distribution assembly comprises: the second ring groove is formed in the right end of the outer wall of the main shaft and communicated with the oil inlet pipe; the first ring groove is formed in the outer wall of the main shaft, is positioned on the left side of the second ring groove, and is communicated with the return pipe; ten transverse grooves are respectively arranged on the outer wall of the main shaft at equal intervals along the circumferential direction, the ten transverse grooves are positioned between the first ring groove and the second ring groove, five transverse grooves are communicated with the first ring groove, and the other five transverse grooves are communicated with the second ring groove; seven inner holes are uniformly distributed on the right side of the shell respectively; the seven communicating grooves are respectively arranged on the outer wall of the inner cavity of the shell along the circumferential direction and are communicated with the seven inner holes one by one.
Preferably, the drive mechanism includes: the stator is fixedly arranged at the right end of the partition disc; the number of the needle teeth is seven, the needle teeth are respectively embedded in the side wall of the inner cavity of the stator along the circumferential direction, and the seven needle teeth are staggered with the seven inner holes; and the cycloidal gear is arranged in the inner cavity of the stator and is in fit engagement with the seven pin teeth.
Preferably, the linkage mechanism includes: the first internal gear is arranged at the left end of the inner cavity of the main shaft; the second internal gear is arranged in the inner cavity of the cycloid wheel; one end of the linkage shaft assembly is in fit meshing with the first internal gear, and the other end of the linkage shaft assembly is in fit meshing with the second internal gear; the baffle ring is fixedly arranged on the left side of the inner cavity of the main shaft and limits the linkage shaft assembly; and the check block is matched and inserted at the right side of the inner cavity of the cycloidal gear and limits the linkage shaft assembly.
Preferably, the universal joint shaft assembly comprises: the first ball gear is meshed with the inner wall of the first internal gear in a matched mode, and the baffle ring limits the first ball gear; the linkage shaft is arranged on the right side of the first ball gear; the second ball gear is arranged at the right end of the linkage shaft, is engaged with the second internal gear in a matching manner, and is limited by the stop block.
Preferably, the lubricating mechanism includes: the through hole is formed in the linkage shaft; one end of the lubricating pipe is communicated with the left side of the inner cavity of the main shaft, and the other end of the lubricating pipe is opposite to the middle part of the outer wall of the main shaft and the position of the deep groove ball bearing on the right side; the groove is formed in the bottom of the right side of the left end cover; the backflow groove is formed in the bottom of the left side of the inner cavity of the shell; the non-return assembly is arranged at the right end of the reflux groove; one end of the connecting pipe is communicated with the inner cavity of the non-return assembly, and the other end of the connecting pipe is communicated with the inner cavity of the return pipe; and the screw plug is in threaded connection with the middle position of the right side of the right end cover.
Preferably, the non-return assembly includes: the clamping cavity is formed at the right end of the reflux groove, and the connecting pipe is communicated with the side wall of the inner cavity of the clamping cavity; the clamping ball is slidably arranged on the side wall of the inner cavity of the clamping cavity; and one end of the spring is clamped on the right side of the inner cavity of the clamping cavity, and the other end of the spring is clamped on the right side of the clamping ball.
Preferably, a dustproof ring is arranged on the left side of the inner cavity of the left end cover, a shaft seal is arranged on the right side of the inner cavity of the left end cover, and a sealing ring is arranged between the left end cover and the shell.
Compared with the prior art, the utility model has the beneficial effects that: the high-pressure cycloid hydraulic motor sequentially passes through the communicating grooves by the transverse grooves communicated with the second annular groove, hydraulic oil is injected into the inner hole, then high-pressure oil enters the inner cavity of the stator and pushes the cycloidal gear to rotate, the main shaft rotates in the inner cavity of the shell, ten transverse grooves intermittently communicate the inner hole with the first annular groove and the second annular groove, therefore, seven inner holes are intermittently connected with the oil inlet pipe and the return pipe, the volume of the seven closed inner cavities is periodically changed along with the rotation of the cycloid wheel, so that the cycloid wheel is pushed to rotate, the teeth of the first spherical gear and the second spherical gear are circular, namely, the first spherical gear and the second spherical gear are engaged with the first internal gear and the second internal gear in a matching way no matter how large the inclination angle of the linkage shaft component is, therefore, the main shaft and the cycloid wheel can synchronously rotate, and hydraulic oil on the other side of the cycloid wheel is pressed into a corresponding inner hole and flows back to the oil tank from the return pipe; the hydraulic oil leaked between the cycloidal gear and the partition plate enters the inner cavity of the cycloidal gear and lubricates the second internal gear and the second spherical gear, part of the hydraulic oil enters the inner cavity of the main shaft through the through hole and lubricates the first internal gear and the first spherical gear, the rest of the hydraulic oil enters the lubricating pipe, under the action of the centrifugal force generated by the rotation of the main shaft, the hydraulic oil enters the inner cavity on the left side of the shell and lubricates the two deep groove ball bearings, then the hydraulic oil enters the backflow groove through the bottom groove of the left end cover, the hydraulic oil enters the clamping cavity through the backflow groove and pushes the clamping ball to the right side, the spring is stressed and compressed in the process, so that the hydraulic oil can flow back to the backflow pipe through the connecting pipe, after the hydraulic oil enters the connecting pipe, therefore, the meshing effect of the linkage shaft, the cycloidal gear and the main shaft is good, the influence of uncertain eccentric distance of the cycloidal gear is avoided, and large vibration is not easy to generate, the noise is little, moves steadily to can utilize the circulating hydraulic oil to lubricate, need not regularly to change hydraulic oil, need not to dismantle labour saving and time saving to hydraulic motor.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1;
FIG. 3 is a schematic view of the structure of FIG. 2;
FIG. 4 is a front cross-sectional structural view of FIG. 3;
FIG. 5 is an enlarged view of the structure at A in FIG. 4;
FIG. 6 is an enlarged view of the structure at B in FIG. 4;
FIG. 7 is a schematic right sectional view of FIG. 3;
FIG. 8 is a schematic diagram of the right side view of FIG. 3;
FIG. 9 is a schematic structural view of a flow distribution assembly;
FIG. 10 is a schematic view of a linkage shaft assembly.
In the figure: 2. the lubricating device comprises a shell, 3, a four-hole square flange, 4, a reinforcing rib, 5, a deep groove ball bearing, 6, a main shaft, 7, a shaft retainer ring, 8, a left end cover, 81, a dust ring, 82, a shaft seal, 83, a sealing ring, 9, an oil distribution mechanism, 91, an oil inlet pipe, 92, a return pipe, 93, a flow distribution assembly, 931, a first annular groove, 932, a second annular groove, 933, a transverse groove, 934, an inner hole, 935, a communication groove, 10, a driving mechanism, 101, a stator, 102, a pin tooth, 103, a cycloidal gear, 11, a right end cover, 12, a linkage mechanism, 121, a first inner gear, 122, a second inner gear, 123, a linkage shaft assembly, 1231, a first ball gear, 1232, a linkage shaft, 1233, a second ball gear, 124, a retainer ring, 125, a stopper, 13, a lubricating mechanism, 131, a through hole, 132, a lubricating pipe, 133, a groove, 134, a return groove, 135, a check assembly, 1351, a clamping cavity, 1352, Ball, 1353, spring, 136, connecting pipe, 137 and screw plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-10, the present invention provides a technical solution: a high pressure gerotor hydraulic motor comprising: the four-hole square flange type oil distribution device comprises a shell 2, a four-hole square flange 3, reinforcing ribs 4, deep groove ball bearings 5, a main shaft 6, a shaft check ring 7, a left end cover 8, an oil distribution mechanism 9, a driving mechanism 10, a right end cover 11, a linkage mechanism 12 and a lubricating mechanism 13, wherein the four-hole square flange 3 is arranged on the left side of the outer wall of the shell 2, the four-hole square flange 3 is used for being fixedly installed with an executing mechanism, the reinforcing ribs 4 are arranged on the right side of the four-hole square flange 3 along the circumferential direction respectively, the number of the deep groove ball bearings 5 is two and is embedded in the left side of the inner cavity of the shell 2 respectively, the main shaft 6 is inserted into the inner ring inner walls of the two deep groove ball bearings 5, the middle shaft shoulder of the main shaft 6 limits the deep groove ball bearings 5 on the right side, the shaft check ring 7 is clamped in the middle position of the main shaft 6, the shaft check ring 7 limits the deep groove ball bearings 5 on the left side, the left end cover 8 is fixedly installed at the left end of the shell 2 through a short screw, the deep groove ball bearing 5 on the left side is limited, the oil distribution mechanism 9 is arranged at the right end of the shell 2, the driving mechanism 10 is fixedly arranged at the right end of the oil distribution mechanism 9, the right end cover 11 is fixedly arranged at the right end of the driving mechanism 10 through a long screw, the linkage mechanism 12 is arranged in the inner cavity of the shell 2, and the lubricating mechanism 13 is arranged at the bottom of the shell 2;
the oil distribution mechanism 9 includes: the oil inlet pipe 91 is arranged at the right end of the top of the shell 2, the oil inlet pipe 91 is used for injecting high-pressure hydraulic oil, the return pipe 92 is arranged at the top of the shell 2 and is located on the left side of the oil inlet pipe 91, and the flow distribution assembly 93 is arranged at the right end of the main shaft 6, and is fixedly arranged at the right end of the shell 2 and a partition disc 94.
Preferably, the flow distribution assembly 93 further includes: a first annular groove 931, a second annular groove 932, transverse grooves 933, inner holes 934 and communicating grooves 935, the second annular groove 932 is arranged at the right end of the outer wall of the main shaft 6 and is communicated with the oil inlet pipe 91, the first annular groove 931 is arranged at the outer wall of the main shaft 6, the first annular groove 931 is positioned at the left side of the second annular groove 932, the first annular groove 931 is communicated with the return pipe 92, ten transverse grooves 933 are respectively arranged at the outer wall of the main shaft 6 at equal intervals along the circumferential direction, the ten transverse grooves 933 are positioned between the first annular groove 931 and the second annular groove 932, five transverse grooves 933 are communicated with the first annular groove 931, the other five transverse grooves are communicated with the second annular groove 932, the number of the inner holes 934 is seven, the seven transverse grooves are respectively arranged at the right side of the shell 2 uniformly, the number of the communicating grooves 935 is seven, the seven communicating grooves 935 are respectively arranged at the outer wall of the inner cavity of the shell 2 along the circumferential direction, the seven communicating grooves 935 are communicated with the seven inner holes 934 one by one, the main shaft 6 rotates in the inner cavity of the shell 2, ten cross grooves 933 intermittently communicate the inner hole 934 with the first ring groove 931 and the second ring groove 932, so that seven inner holes 934 are intermittently connected with the oil feed pipe 91 and the return pipe 92.
Preferably, the driving mechanism 10 further includes: the stator 101 is fixedly installed at the right end of the partition plate 94, the number of the pin teeth 102 is seven, the pin teeth 102 are respectively embedded in the side wall of the inner cavity of the stator 101 along the circumferential direction, the seven pin teeth 102 are staggered with the seven inner holes 934, the cycloidal gear 103 is installed in the inner cavity of the stator 101, the cycloidal gear 103 is in fit engagement with the seven pin teeth 102, the cycloidal gear 103 comprises six teeth, the outer walls of the seven pin teeth 102 are tightly attached to the outer wall of the cycloidal gear 103, seven closed inner cavities are formed, and the volume of the seven closed inner cavities is periodically changed along with the rotation of the cycloidal gear 103.
Preferably, the linkage 12 further includes: first internal gear 121, second internal gear 122, universal driving shaft subassembly 123, fender ring 124 and dog 125, first internal gear 121 sets up in the inner chamber left end of main shaft 6, second internal gear 122 sets up in the inner chamber of cycloid wheel 103, universal driving shaft subassembly 123 one end and first internal gear 121 looks adaptation meshing, the other end and second internal gear 122 looks adaptation meshing, fender ring 124 fixed mounting is in the inner chamber left side of main shaft 6, and carry on spacingly to universal driving shaft subassembly 123, dog 125 looks adaptation is pegged graft in the inner chamber right side of cycloid wheel 103, and carry on spacingly to universal driving shaft subassembly 123, be used for resisting the beating of universal driving shaft subassembly 123 in the axis direction.
Preferably, the linkage shaft assembly 123 further includes: first ball gear 1231, universal driving shaft 1232 and second ball gear 1233, first ball gear 1231 looks adaptation meshes in the inner wall of first internal gear 121, and keep off ring 124 and carry on spacingly to first ball gear 1231, universal driving shaft 1232 sets up in the right side of first ball gear 1231, second ball gear 1233 sets up in the right-hand member of universal driving shaft 1232, second ball gear 1233 meshes with second internal gear 122 looks adaptation, and dog 125 carries on spacingly to second ball gear 1233, the tooth of first ball gear 1231 and second ball gear 1233 is circular, no matter how big is linkage shaft subassembly 123 inclination, first ball gear 1231 and second ball gear 1233 all mesh with first internal gear 121 and second internal gear 122 looks adaptation, thereby guarantee that main shaft 6 and cycloid wheel 103 can synchronous revolution.
Preferably, the lubricating mechanism 13 further includes: the hydraulic oil release device comprises a through hole 131, a lubricating pipe 132, a groove 133, a backflow groove 134, a check assembly 135, a connecting pipe 136 and a screw plug 137, wherein the through hole 131 is formed in the linkage shaft 1232, one end of the lubricating pipe 132 is communicated with the left side of an inner cavity of the main shaft 6, the other end of the lubricating pipe 132 is communicated with the middle part of the outer wall of the main shaft 6 and is opposite to the deep groove ball bearing 5 on the right side, the groove 133 is formed in the bottom of the right side of the left end cover 8, the backflow groove 134 is formed in the bottom of the left side of the inner cavity of the shell 2, the check assembly 135 is arranged at the right end of the backflow groove 134, one end of the connecting pipe 136 is communicated with the inner cavity of the check assembly 135, the other end of the connecting pipe 136 is communicated with the inner cavity of the backflow pipe 92, the screw plug 137 is screwed in the middle position of the right side of the right end cover 11, and the screw plug 137 is used for releasing hydraulic oil in the inner cavity of the shell 2.
Preferably, the check assembly 135 further includes: the hydraulic oil return pipe comprises a clamping cavity 1351, a clamping ball 1352 and a spring 1353, wherein the clamping cavity 1351 is arranged at the right end of the return groove 134, the connecting pipe 136 is communicated with the side wall of the inner cavity of the clamping cavity 1351, the clamping ball 1352 is slidably arranged on the side wall of the inner cavity of the clamping cavity 1351, one end of the spring 1353 is clamped at the right side of the inner cavity of the clamping cavity 1351, the other end of the spring 1353 is clamped at the right side of the clamping ball 1352, the spring 1353 is a rotary spring and is elastically deformed after being stretched or squeezed, the spring recovers to an initial state after external force is removed, hydraulic oil enters the clamping cavity 1351 from the left return groove 134 and pushes the clamping ball 1352 to the right side, and therefore the hydraulic oil can flow back to the return pipe 92 through the connecting pipe 136.
Preferably, a dustproof ring 81 is arranged on the left side of the inner cavity of the left end cover 8, a shaft seal 82 is arranged on the right side of the inner cavity of the left end cover 8, and a sealing ring 83 is arranged between the left end cover 8 and the housing 2, so that the sealing performance of the left end cover 8 is ensured.
The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.
Firstly, high-pressure oil is injected into a second annular groove 932 of the main shaft 6 from an oil inlet pipe 91, the high-pressure oil sequentially passes through a communicating groove 935 and is injected into an inner hole 934 through a transverse groove 933 communicated with the second annular groove 932, then the high-pressure oil enters an inner cavity of the stator 101 and pushes the cycloidal gear 103 to rotate, the main shaft 6 rotates in the inner cavity of the shell 2, ten transverse grooves 933 intermittently communicate the inner hole 934 with a first annular groove 931 and a second annular groove 932, so that seven inner holes 934 are intermittently connected with the oil inlet pipe 91 and a return pipe 92, the volume of seven closed inner cavities periodically changes along with the rotation of the cycloidal gear 103 so as to push the cycloidal gear 103 to rotate, teeth of a first spherical gear 1231 and a second spherical gear 1233 are circular, namely, no matter how large the inclination angle of a linkage shaft assembly 123 is, the first spherical gear 1231 and the second spherical gear 1233 are both in adaptive meshing engagement with the first inner gear 121 and the second inner gear 122, so as to ensure that the main shaft 6 and the cycloidal gear 103 can synchronously rotate, hydraulic oil on the other side of the cycloidal gear 103 is pressed into the corresponding inner hole 934 and flows back to the oil tank from the return pipe 92;
step two, hydraulic oil leaking between the cycloidal gear 103 and the partition 94 enters an inner cavity of the cycloidal gear 103, lubricates the second internal gear 122 and the second ball gear 1233, a part of the hydraulic oil enters an inner cavity of the main shaft 6 through the through hole 131, lubricates the first internal gear 121 and the first ball gear 1231, the rest of the hydraulic oil enters the lubricating pipe 132, under the action of centrifugal force generated by rotation of the main shaft 6, the hydraulic oil enters an inner cavity on the left side of the housing 2 and lubricates the two deep groove ball bearings 5, then the hydraulic oil enters the return groove 134 through the bottom groove 133 of the left end cover 8, the hydraulic oil enters the clamping cavity 1351 through the return groove 134 and pushes the clamping ball 1352 to the right side, in the process, the spring 1353 is stressed and compressed, and therefore the hydraulic oil can flow back to the return pipe 92 through the connecting pipe 136, and after the hydraulic oil enters the connecting pipe 136;
the device has the advantages that the meshing effect of the universal driving shaft, the cycloid wheel and the main shaft is good, great vibration is not easy to generate, the noise is low, the movement is stable, the circulating hydraulic oil can be utilized for lubrication, the hydraulic oil does not need to be replaced periodically, and the time and the labor are saved.
In the description of the present invention, it is to be understood that the terms "bottom", "one end", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated; unless otherwise specifically stated or limited, the terms "snap" and "connect" and "set" and "open" and "electrically connect" and "fixedly connect" are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A high pressure gerotor hydraulic motor comprising: the novel bearing comprises a shell (2), a four-hole square flange (3), a plurality of reinforcing ribs (4), two deep groove ball bearings (5), a main shaft (6) and a shaft retaining ring (7), wherein the four-hole square flange (3) is arranged on the left side of the outer wall of the shell (2), the reinforcing ribs (4) are arranged on the right side of the four-hole square flange (3) in the circumferential direction respectively, the two deep groove ball bearings (5) are embedded in the left side of the inner cavity of the shell (2) respectively, the main shaft (6) is inserted into the inner ring inner walls of the two deep groove ball bearings (5), the middle shaft shoulder of the main shaft (6) limits the deep groove ball bearing (5) on the right side, the shaft retaining ring (7) is connected to the middle position of the main shaft (6), and the shaft retaining ring (7) limits the deep groove ball bearing (5) on the left side, and is characterized by further comprising:
the left end cover (8) is fixedly arranged at the left end of the shell (2) through a short screw, and limits the deep groove ball bearing (5) on the left side;
the oil distribution mechanism (9) is arranged at the right end of the shell (2);
the driving mechanism (10) is fixedly arranged at the right end of the oil distribution mechanism (9);
the right end cover (11) is fixedly arranged at the right end of the driving mechanism (10) through a long screw;
the linkage mechanism (12) is arranged in an inner cavity of the shell (2);
a lubricating mechanism (13) provided at the bottom of the housing (2);
the oil distribution mechanism (9) includes:
the oil inlet pipe (91) is arranged at the right end of the top of the shell (2);
the return pipe (92) is arranged at the top of the shell (2) and is positioned on the left side of the oil inlet pipe (91);
the flow distribution assembly (93) is arranged at the right end of the main shaft (6);
and the partition disc (94) is fixedly arranged at the right end of the shell (2).
2. A high pressure gerotor hydraulic motor as set forth in claim 1, further comprising: the flow distribution assembly (93) comprises:
the second annular groove (932) is formed in the right end of the outer wall of the main shaft (6) and is communicated with the oil inlet pipe (91);
a first ring groove (931) opened in an outer wall of the main shaft (6), the first ring groove (931) being located on a left side of the second ring groove (932), and the first ring groove (931) being communicated with a return pipe (92);
ten transverse grooves (933) are arranged on the outer wall of the main shaft (6) at equal intervals along the circumferential direction, the ten transverse grooves (933) are positioned between the first annular groove (931) and the second annular groove (932), five transverse grooves (933) are communicated with the first annular groove (931), and the other five transverse grooves are communicated with the second annular groove (932);
seven inner holes (934) are uniformly distributed on the right side of the shell (2);
the seven communication grooves (935) are circumferentially arranged on the outer wall of the inner cavity of the shell (2), and the seven communication grooves (935) are communicated with the seven inner holes (934) one by one.
3. A high pressure gerotor hydraulic motor as set forth in claim 1, further comprising: the drive mechanism (10) comprises:
a stator (101) fixedly mounted on the right end of the partition plate (94);
the number of the pin teeth (102) is seven, the pin teeth are respectively embedded in the side wall of the inner cavity of the stator (101) along the circumferential direction, and the seven pin teeth (102) are staggered with the seven inner holes (934);
the cycloidal gear (103) is installed in the inner cavity of the stator (101), and the cycloidal gear (103) is in fit engagement with the seven pin teeth (102).
4. A high pressure gerotor hydraulic motor as set forth in claim 3, further comprising: the linkage mechanism (12) includes:
the first internal gear (121) is arranged at the left end of the inner cavity of the main shaft (6);
a second internal gear (122) provided in an inner cavity of the cycloid gear (103);
one end of the linkage shaft assembly (123) is in fit meshing with the first internal gear (121), and the other end of the linkage shaft assembly is in fit meshing with the second internal gear (122);
the baffle ring (124) is fixedly arranged on the left side of the inner cavity of the main shaft (6) and limits the linkage shaft assembly (123);
and the stop block (125) is matched and inserted into the right side of the inner cavity of the cycloidal gear (103) and limits the linkage shaft assembly (123).
5. The high pressure gerotor hydraulic motor of claim 4, wherein: the linkage shaft assembly (123) includes:
the first ball gear (1231) is meshed with the inner wall of the first internal gear (121) in a matching mode, and the baffle ring (124) limits the first ball gear (1231);
a linkage shaft (1232) provided to the right side of the first ball gear (1231);
the second ball gear (1233) is arranged at the right end of the linkage shaft (1232), the second ball gear (1233) is meshed with the second inner gear (122) in a matching mode, and the stop block (125) limits the second ball gear (1233).
6. The high pressure gerotor hydraulic motor of claim 5, wherein: the lubricating mechanism (13) includes:
the through hole (131) is formed in the linkage shaft (1232);
one end of the lubricating pipe (132) is communicated with the left side of the inner cavity of the main shaft (6), and the other end of the lubricating pipe is opposite to the middle part of the outer wall of the main shaft (6) and the position of the deep groove ball bearing (5) on the right side;
the groove (133) is formed in the bottom of the right side of the left end cover (8);
the backflow groove (134) is formed in the bottom of the left side of the inner cavity of the shell (2);
a check assembly (135) disposed at a right end of the backflow tank (134);
one end of the connecting pipe (136) is communicated with the inner cavity of the non-return assembly (135), and the other end of the connecting pipe is communicated with the inner cavity of the return pipe (92);
and the screw plug (137) is screwed in the middle position of the right side of the right end cover (11).
7. The high pressure gerotor hydraulic motor of claim 6, wherein: the non-return assembly (135) comprises:
the clamping cavity (1351) is formed at the right end of the backflow groove (134), and the connecting pipe (136) is communicated with the side wall of the inner cavity of the clamping cavity (1351);
a card ball (1352) slidably mounted to an inner cavity side wall of the card cavity (1351);
one end of the spring (1353) is clamped on the right side of the inner cavity of the clamping cavity (1351), and the other end of the spring is clamped on the right side of the clamping ball (1352).
8. A high pressure gerotor hydraulic motor as set forth in claim 1, further comprising: the dust ring sealing structure is characterized in that a dust ring (81) is arranged on the left side of an inner cavity of the left end cover (8), a shaft seal (82) is arranged on the right side of the inner cavity of the left end cover (8), and a sealing ring (83) is arranged between the left end cover (8) and the shell (2).
CN202121892721.XU 2021-08-13 2021-08-13 High-pressure cycloid hydraulic motor Active CN215979677U (en)

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CN202121892721.XU CN215979677U (en) 2021-08-13 2021-08-13 High-pressure cycloid hydraulic motor

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Application Number Priority Date Filing Date Title
CN202121892721.XU CN215979677U (en) 2021-08-13 2021-08-13 High-pressure cycloid hydraulic motor

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