CN117927614A - Single-stage hypocycloid speed reducer for industrial robot - Google Patents

Abstract

The invention relates to the technical field of cycloidal reducers, and discloses a single-stage hypocycloidal reducer for an industrial robot, which comprises a shell, wherein pin shafts are uniformly and fixedly arranged on the inner surface of the shell in the circumferential direction, a central shaft is movably arranged in the middle of the shell, and the single-stage hypocycloidal reducer for the industrial robot is provided with a cooling disc between two cycloidal gears, so that the heat dissipation space can be increased by increasing the distance between the two cycloidal gears, the heat dissipation effect of the two cycloidal gears and an eccentric sleeve is improved, meanwhile, air filled in the annular wall extrudes a split ring after being heated and expanded to deform the split ring so that fine needles on the split ring puncture an inner ring bag, potassium nitrate in the inner ring bag flows out, and is mixed with water in the subsequent rotation process, so that the surrounding environment is cooled in the process of forming a potassium nitrate solution, and the temperature in the cooling disc can be lowered.

Description

Single-stage hypocycloid speed reducer for industrial robot

Technical Field

The invention relates to the technical field of cycloidal speed reducers, in particular to a single-stage hypocycloidal speed reducer for an industrial robot.

Background

The main working principle of the cycloidal speed reducer is that a motor drives an output part to rotate, and the power of the output part is decelerated by the deceleration part and then output from the output part, but the existing cycloidal speed reducer has some problems in the use process, and the cycloidal speed reducer is characterized in that:

The cycloidal speed reducer adopts a double eccentric sleeve structure with one hundred eighty degrees in a staggered way in a speed reducing part, and the rotating speed of an output shaft at the center is higher, so that the eccentric sleeve can apply larger centrifugal force sum to the center shaft during rotation, and as the two eccentric sleeves which are symmetrically arranged are simultaneously acted on, the center shaft can generate heat too quickly, meanwhile, the cycloidal gear and the needle gear sleeve are rubbed, so that the cycloidal gear can generate heat, the structure of the eccentric sleeve can enable the output shaft to generate more heat during rotation, the internal temperature of the equipment is further raised too quickly, the existing device is used for lubricating the internal structure, the internal space is used for filling lubricating liquid, the heat radiating effect of the existing cycloidal speed reducer is quite unsatisfactory, once the optimal working temperature of the existing cycloidal speed reducer is lower than ninety degrees, the cycloidal speed reducer can damage the equipment, and the existing cycloidal speed reducer cannot convert or emit the heat generated in the inside well, so that the application range of the equipment is limited.

For this purpose we propose a single stage hypocycloid reducer for industrial robots.

Disclosure of Invention

The invention provides a single-stage hypocycloid reducer for an industrial robot, which has the advantages of good heat dissipation effect and wide application range, and solves the problems in the background technology.

The invention provides the following technical scheme: the single-stage hypocycloid speed reducer for the industrial robot comprises a shell, wherein pin shafts are uniformly and fixedly arranged on the inner surface of the shell in the circumferential direction, a central shaft is movably arranged in the middle of the shell, two eccentric sleeves are fixedly arranged on the central shaft, pin teeth pins are uniformly and fixedly arranged in the middle of the inner part of the shell in the circumferential direction, cycloid gears are fixedly arranged on the eccentric sleeves, and a cooling disc is fixedly arranged on the central shaft between the two eccentric sleeves;

The cooling disc comprises a disc body, grooves are uniformly formed in two sides of the disc body in the circumferential direction respectively, side wing plates are movably mounted in the grooves, an inner cooling ring is detachably mounted in the disc body, a guide pipe is uniformly and fixedly mounted on the inner cooling ring in the circumferential direction, a positioning plate is fixedly mounted at the end part of the guide pipe, an inner pipe is fixedly mounted in the grooves, a connector is fixedly mounted at the end part of the positioning plate, and a connecting rod is movably mounted at one side of the connector.

In a preferred embodiment, the cooling disc and the two cycloidal gears are arranged at intervals, and the diameter of the cooling disc is smaller than the diameter corresponding to the installation position of the pin gear pin.

In a preferred embodiment, the bottom end of the side wing plate is movably connected to the end of the link, and the link is inclined in a state that the side wing plate is embedded in the groove.

In a preferred embodiment, the inner cooling ring is sleeved on the inner ring inside the tray body, and the guide pipe is detachably and movably connected with the inner cooling ring.

In a preferred embodiment, the end of the locating plate is located on the same side of the groove as the side of the rotation shaft of the flank plate, and the end of the locating plate located at the connector is provided with a telescopic hose.

In a preferred embodiment, two inner tubes are fixedly installed in each groove, and the two inner tubes are fixedly installed at two ends of the locating plate respectively at the ends of the locating plate.

In a preferred embodiment, the inner cooling ring comprises a ring wall, an inner ring of the ring wall is movably provided with an inner ring pocket, and a dividing ring is movably arranged inside the ring wall.

In a preferred embodiment, the inner ring bag is detachably arranged in the annular wall, the inner ring bag is formed by wrapping the potassium nitrate in a film, the dividing ring is of a single-coil spring structure, a needle insertion is arranged on the inner surface of the coil replacement at a position corresponding to the inner ring bag, and two ends of the dividing ring are in sealing connection through a telescopic sealing material.

In a preferred embodiment, water is filled between the inner surface of the split ring and the inner ring of the annular wall, air is filled between the outer surface of the split ring and the inner part of the annular wall, and the annular wall is a sealing structure.

The invention has the following beneficial effects:

1. This industrial robot is with single-stage hypocycloid reduction gear, through being provided with the cooling dish between two cycloid gears, so not only can increase radiating space through the distance between two cycloid gears of increase, thereby improve the radiating effect on two cycloid gears self and the eccentric sleeve, the air through the inside packing of rampart extrusion split ring takes place deformation after the thermal expansion simultaneously and makes the thin needle on the split ring puncture the inner ring bag, make the potassium nitrate in the inner ring bag flow, mix with water in the rotatory in-process afterwards, make the environmental cooling around in the in-process that forms the potassium nitrate solution like this, so can make the inside temperature reduction of cooling dish, the air of inflation can be through the connector department of inner tube conduction, utilize the transmission of connector and connecting rod to jack-up the flank board, can also utilize the flank board to increase radiating area like this in the rotatory in-process, and the flank board can also play the effect of stirring inside lubricating liquid in the rotatory in-process, and then improve the heat conduction efficiency between lubricating liquid and the device.

2. According to the single-stage hypocycloid speed reducer for the industrial robot, the split ring is arranged into a coil spring structure, so that air between the split ring and the annular wall can be deformed from the non-fixed end of the split ring when expanding, so that the inner annular bag is punctured one by one to form a solution with water to reduce the surrounding temperature, the service life of the device is greatly prolonged, meanwhile, the expanded air after absorbing heat, the low temperature generated by mixing potassium nitrate with water can be neutralized and complemented, the split ring cannot be deformed to the maximum degree so as to consume the inner annular bag, the service life of the whole device is further prolonged, meanwhile, the inner annular bag is sleeved in the annular wall, one side of the annular wall can be opened after the inner annular bag is consumed, the potassium nitrate solution in the inner annular bag is poured out, the device can be enabled to have a high-efficiency cooling effect again, and the service range of the device is greatly prolonged.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a right side view of the present invention;

FIG. 3 is a schematic view of the internal partial perspective structure of the present invention;

FIG. 4 is a schematic view of the internal cross-sectional structure of the cooling plate of the present invention;

FIG. 5 is an enlarged schematic view of the structure of FIG. 4A according to the present invention;

FIG. 6 is a schematic view of a portion of a longitudinal cross-sectional structure of a cooling plate according to the present invention;

FIG. 7 is a schematic diagram of a cross-sectional structure of an inner cooling ring according to the present invention.

In the figure: 1. a housing; 2. a pin shaft; 3. a central shaft; 4. an eccentric sleeve; 5. a pin tooth pin; 6. cycloidal gears; 7. a cooling plate; 71. a tray body; 72. a groove; 73. a side wing plate; 74. an inner cooling ring; 741. an annular wall; 742. an inner ring bag; 743. a split ring; 75. a conduit; 76. a positioning plate; 77. an inner tube; 78. a connector; 79. and a connecting rod.

Detailed Description

The embodiments of the present invention will be clearly and completely described below with reference to the drawings in the present invention, and the configurations of the structures described in the following embodiments are merely examples, and the single-stage hypocycloidal reducer for industrial robots according to the present invention is not limited to the structures described in the following embodiments, and all other embodiments obtained by a person having ordinary skill in the art without making any inventive effort are within the scope of the present invention.

Referring to fig. 1 and 3, a single-stage hypocycloid reducer for an industrial robot is shown, and comprises a housing 1, wherein a pin shaft 2 is uniformly and fixedly installed on the inner surface of the housing 1 in the circumferential direction, a central shaft 3 is movably installed in the middle of the housing 1, two eccentric sleeves 4 are fixedly installed on the central shaft 3, a pin tooth pin 5 is uniformly and fixedly installed in the middle of the interior of the housing 1 in the circumferential direction, a cycloid wheel 6 is fixedly installed on the eccentric sleeves 4, and a cooling disc 7 is fixedly installed on the central shaft 3 between the two eccentric sleeves 4;

Compared with the prior art, the application has the advantages that the cooling disc 7 is arranged between the two cycloid gears 6, so that the heat dissipation space can be increased by increasing the distance between the two cycloid gears 6, the heat dissipation effect on the two cycloid gears 6 and the eccentric sleeve 4 is improved, meanwhile, the air filled in the annular wall 741 extrudes the split ring 743 to deform after being heated and expands, so that the fine needle on the split ring 743 punctures the inner annular bag 742, the potassium nitrate in the inner annular bag 742 flows out, and is mixed with water in the subsequent rotation process, the surrounding environment is cooled in the process of forming the potassium nitrate solution, the temperature in the cooling disc 7 can be reduced, the expanded air can be conducted to the joint 78 through the inner pipe 77, the side wing plate 73 is jacked up by the transmission of the joint 78 and the connecting rod 79, the heat dissipation area can be increased by the side wing plate 73 in the rotation process, the heat dissipation effect is improved, the side wing plates 73 can also play a role of stirring internal lubricating liquid in the rotating process, so that the heat conduction efficiency between the lubricating liquid and the device is improved, meanwhile, the split ring 743 is arranged into a coil spring structure, so that the air between the split ring 743 and the annular wall 741 can be deformed from the non-fixed end of the split ring 743 when expanding by utilizing the characteristics of the coil spring, the inner annular bag 742 can be punctured one by one to form a solution with water to reduce the surrounding temperature, the service life of the device is greatly prolonged, meanwhile, the low temperature generated by mixing the expanded air and potassium nitrate with water after absorbing heat is neutralized and complemented, the split ring 743 can not deform the maximum so as to consume the inner annular bag 742, and the service life of the whole device is further prolonged, meanwhile, the inner ring bag 742 is sleeved inside the annular wall 741, so that one side of the annular wall 741 can be opened after the consumption of the inner ring bag 742 is completed, the potassium nitrate solution in the inner ring bag is poured out and the inner ring bag 742 is replaced, so that the device has an efficient cooling effect again, and the application range of the device is greatly improved.

Referring to fig. 3, a single-stage hypocycloid reducer for an industrial robot includes a cooling disc 7, wherein the cooling disc 7 and two cycloid gears 6 are arranged at intervals, and the diameter of the cooling disc 7 is smaller than the diameter corresponding to the installation position of a pin tooth pin 5;

in this embodiment, it should be noted that, through being provided with cooling disc 7 between two cycloidal gears 6, not only can increase radiating space through increasing the distance between two cycloidal gears 6 like this, thereby improve the radiating effect on two cycloidal gears 6 self and eccentric sleeve 4, the internal portion of cooling disc 7 also can mix through potassium nitrate and water simultaneously, make the in-process that forms the potassium nitrate solution with the environment cooling around, like this alright make the inside temperature reduction of cooling disc 7, thereby the heat that cooling disc 7 outside produced can carry out heat exchange here, and then improve the heat conduction efficiency between lubricating fluid and the device, just also improved the radiating effect of the device.

Referring to fig. 3, fig. 4, fig. 5 and fig. 6, a single-stage hypocycloid reducer for an industrial robot is shown, which comprises a cooling disc 7, wherein the cooling disc 7 comprises a disc body 71, grooves 72 are uniformly formed in the circumferential direction of two sides of the disc body 71, side wing plates 73 are movably mounted in the grooves 72, an inner cooling ring 74 is detachably mounted in the disc body 71, a guide pipe 75 is uniformly and fixedly mounted in the circumferential direction on the inner cooling ring 74, a positioning plate 76 is fixedly mounted at the end part of the guide pipe 75, an inner pipe 77 is fixedly mounted in the groove 72, a connector 78 is fixedly mounted at the end part of the positioning plate 76, and a connecting rod 79 is movably mounted at one side of the connector 78;

in this embodiment, it should be noted that, the bottom end of the side wing plate 73 is movably connected with the end of the connecting rod 79, the connecting rod 79 is inclined in a state that the side wing plate 73 is embedded in the groove 72, the inner cooling ring 74 is sleeved on the inner ring inside the tray body 71, the conduit 75 is detachably movably connected with the inner cooling ring 74, the end of the positioning plate 76 is located on the same side of the groove 72 as the side where the rotation shaft of the side wing plate 73 is located, the positioning plate 76 is located at one end of the connecting head 78 and is provided with a telescopic hose, two inner pipes 77 are fixedly installed in each groove 72, and the two inner pipes 77 are fixedly installed at two ends of the positioning plate 76, so that after the gas in the inner cooling ring 74 is heated and expanded, the gas can expand the positioning plate 76, further extend the positioning plate 76, the extending positioning plate 76 is directionally moved under the limiting action of the inner pipes 77, and further the connecting head 78 is pushed to move the side wing plate 73 to separate from the groove 72, thus realizing that the heat dissipation efficiency of the side wing plate 73 is increased, and the heat dissipation device is further increased under the action of the heat dissipation device.

Referring to fig. 4 and 7, a single-stage hypocycloid reducer for an industrial robot includes an inner cooling ring 74, wherein the inner cooling ring 74 includes a ring wall 741, an inner ring of the ring wall 741 is movably provided with an inner ring pocket 742, and a partition ring 743 is movably provided in the ring wall 741;

In this embodiment, the inner ring bag 742 is detachably mounted inside the annular wall 741, the inner ring bag 742 is provided with a film for wrapping the potassium nitrate, the dividing ring 743 is a single coil spring structure, a needle is provided on the inner surface of the coil at a position corresponding to the inner ring bag 742, two ends of the dividing ring 743 are connected in a sealing manner by a stretchable sealing material, water is filled between the inner surface of the dividing ring 743 and the inner ring of the annular wall 741, air is filled between the outer surface of the dividing ring 743 and the inner portion of the annular wall 741, the annular wall 741 is a sealing structure, thus after the air in the annular wall 741 is expanded by heating, one part overflows into the positioning plate 76 through the guide pipe 75 to push the side wing plate 73 to be unfolded, the other part applies pressure to the split ring 743, so that one movable end of the split ring 743 is bent, the greater the air expansion degree is, the greater the bending degree of the split ring 743 is, and the inner ring bag 742 is punctured by the puncture, so that potassium nitrate in the split ring 743 can be mixed with water under the rotating action of the cooling disc 7, the generated low temperature can cool the inside of the device, the cooling effect of the device is improved, the bending of the split ring 743 is gradually deepened, the inner ring bags 742 can be punctured one by the puncture, the service life of the inner ring bags 742 is greatly prolonged, and the continuity of the cooling effect of the device is also ensured.

The device is in the theory of operation, when the device is started, center pin 3 can drive eccentric sleeve 4 and cooling dish 7 rotation, the rotation of eccentric sleeve 4 then can drive two cycloidal gears 6 card pin 5 on rotate, can produce the heat at the device rotation in-process, the heat of production can make the air in the rampart 741 carry out the heating expansion, the gas of inflation can be conducted to in the locating plate 76 through pipe 75, the locating plate 76 then transversely moves under the effect of expanding gas thrust and the restriction effect of inner tube 77, and then promote connecting rod 79 activity through connector 78, connecting rod 79 then can jack up the expansion of flank 73, the radiating area of device has been increased like this, when the expansion of flank 73 is insufficient in time to dispel the heat, thereby with split ring 743 press bending, the inside pricking can prick inner ring bag 742, the inside potassium nitrate will be mixed with water in the rotatory in-process of inner cooling ring 74 and form the solution like this, the in-process that solution forms can make the temperature around reduce, so can further increase inside heat exchange, the radiating effect of device is improved, the radiating effect of the inside flank 73 also can be greatly improved to the heat of device is greatly agitate the radiating effect of the inside device.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. Single-stage hypocycloidal reducer for industrial robot, comprising a housing (1), characterized in that: the novel cooling device is characterized in that a pin shaft (2) is uniformly and fixedly arranged on the inner surface of the shell (1) in the circumferential direction, a central shaft (3) is movably arranged in the middle of the shell (1), two eccentric sleeves (4) are fixedly arranged on the central shaft (3), a pin tooth pin (5) is uniformly and fixedly arranged in the middle of the inner part of the shell (1) in the circumferential direction, cycloidal gears (6) are fixedly arranged on the eccentric sleeves (4), and a cooling disc (7) is fixedly arranged on the central shaft (3) between the two eccentric sleeves (4);

The cooling disc (7) comprises a disc body (71), grooves (72) are uniformly formed in the circumferential directions of two sides of the disc body (71), side wing plates (73) are movably mounted in the grooves (72), inner cooling rings (74) are detachably mounted in the disc body (71), guide pipes (75) are uniformly and fixedly mounted on the inner cooling rings (74) in the circumferential directions, positioning plates (76) are fixedly mounted at the end parts of the guide pipes (75), inner pipes (77) are fixedly mounted in the grooves (72), connectors (78) are fixedly mounted at the end parts of the positioning plates (76), and connecting rods (79) are movably mounted at one sides of the connectors (78).

2. A single stage hypocycloidal reducer for industrial robots according to claim 1 characterized in that: the cooling disc (7) and the two cycloidal gears (6) are arranged at intervals, and the diameter of the cooling disc (7) is smaller than the diameter corresponding to the installation position of the pin tooth pin (5).

3. A single stage hypocycloidal reducer for industrial robots according to claim 1 characterized in that: the bottom end of the side wing plate (73) is movably connected with the end part of the connecting rod (79), and the connecting rod (79) is inclined in a state that the side wing plate (73) is embedded into the groove (72).

4. A single stage hypocycloidal reducer for industrial robots according to claim 1 characterized in that: the inner cooling ring (74) is sleeved on the inner ring inside the tray body (71), and the guide pipe (75) is detachably and movably connected with the inner cooling ring (74).

5. A single stage hypocycloidal reducer for industrial robots according to claim 1 characterized in that: the end part of the locating plate (76) is positioned on the same side of the groove (72) as the side where the rotation shaft of the side wing plate (73) is positioned, and the end of the locating plate (76) positioned at the joint head (78) is provided with a telescopic hose.

6. A single stage hypocycloidal reducer for industrial robots according to claim 1 characterized in that: two inner pipes (77) are fixedly arranged in each groove (72), and the two inner pipes (77) are fixedly arranged at the two ends of the locating plate (76) respectively at the two ends of the locating plate (76).

7. A single stage hypocycloidal reducer for industrial robots according to claim 1 characterized in that: the inner cooling ring (74) comprises a ring wall (741), an inner ring bag (742) is movably mounted on the inner ring of the ring wall (741), and a partition ring (743) is movably mounted in the ring wall (741).

8. The single-stage hypocycloidal reducer for industrial robot according to claim 7, characterized in that: the inner ring bag (742) is detachably arranged inside the annular wall (741), the inner ring bag (742) is arranged in a film to wrap the potassium nitrate, the partition ring (743) is of a single-coil spring structure, the inner surface of the coil replacement is provided with a needle insertion at a position corresponding to the inner ring bag (742), and two ends of the partition ring (743) are connected in a sealing mode through a telescopic sealing material.

9. The single-stage hypocycloidal reducer for industrial robot according to claim 7, characterized in that: water is filled between the inner surface of the dividing ring (743) and the inner ring of the annular wall (741), air is filled between the outer surface of the dividing ring (743) and the inner part of the annular wall (741), and the annular wall (741) is of a sealing structure.