CN112682486B

CN112682486B - Intermittent transmission gear and reciprocating intermittent transmission mechanism

Info

Publication number: CN112682486B
Application number: CN202110270147.2A
Authority: CN
Inventors: 洪健荣; 陆军; 何普万; 王永辉
Original assignee: South China Xinhai Shenzhen Technology Co ltd
Current assignee: South China Xinhai Shenzhen Technology Co ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2021-05-25
Anticipated expiration: 2041-03-12
Also published as: CN112682486A

Abstract

The invention discloses an intermittent drive gear, comprising: the oil duct structure comprises an annular first shell, a second shell and a connecting piece, wherein at least two slots and oil ducts respectively communicated with the slots are arranged in the first shell; the axial direction of the oil duct is parallel to the axial direction of the first shell, and a control device for controlling the on-off of the oil duct is installed in the oil duct; the gear shaping device comprises at least two gear shaping teeth, a first shell and a second shell, wherein the gear shaping teeth comprise connecting parts inserted into slots, piston parts inserted into oil ducts and tooth parts extending out of the outer peripheral surface of the first shell; the gear shaping is movably arranged in the slot, and the moving direction is parallel to the axial direction of the first shell; and the hydraulic device is connected with the first shell and used for controlling the oil pressure in each oil duct. The intermittent transmission gear disclosed by the invention can adjust the movement and intermittent periods in the intermittent transmission process, so that the intermittent transmission gear is suitable for special working conditions. The invention also provides a reciprocating intermittent motion mechanism.

Description

Intermittent transmission gear and reciprocating intermittent transmission mechanism

Technical Field

The invention relates to the field of transmission, in particular to an intermittent transmission gear and a reciprocating intermittent transmission mechanism.

Background

In the industrial production and transportation process, a conveying belt is often adopted to convey workpieces, workers stand at corresponding stations to perform corresponding construction actions on the workpieces, and in order to facilitate interaction between the workers and the workpieces, an intermittent transmission mechanism is required to change the continuously moving conveying belt into intermittent motion. The intermittent transmission mechanism mainly comprises a ratchet mechanism, a sheave mechanism, an incomplete gear mechanism and the like, but the mechanism can only realize intermittent transmission in a single mode, namely, only can realize periodic movement and stop after the parameters of the mechanism are fixed, so that the intermittent transmission mechanism has certain limitation when being applied to industrial production and transportation.

The utility model discloses a notice number is CN 207621285U's utility model discloses a can realize intermittent type transmission and divide driven incomplete gear mechanism, this incomplete gear mechanism can divide a motion transmission into a plurality of minutes motion, single minute motion can realize intermittent type motion, can each noninterference between the motion, but when the fixed back of tooth number isoparametric of this incomplete gear mechanism, the motion of each minute motion and the cycle of outage have also been fixed, can't adjust the motion and the off-cycle of each minute motion of this incomplete gear mechanism again, be difficult to be applicable to some special operating modes.

Disclosure of Invention

In order to solve the technical problems, the invention provides the intermittent transmission gear which can adjust the movement period and the stop time, and improves the adaptability to different intermittent movement working conditions. The specific technical scheme is as follows:

an intermittent drive gear comprising:

the oil duct structure comprises an annular first shell, a second shell and a connecting piece, wherein at least two slots and oil ducts respectively communicated with the slots are arranged in the first shell; the axial direction of the oil duct is parallel to the axial direction of the first shell, and a control device for controlling the on-off of the oil duct is installed in the oil duct;

the gear shaping device comprises at least two gear shaping teeth, a first shell and a second shell, wherein the gear shaping teeth comprise connecting parts inserted into slots, piston parts inserted into oil ducts and tooth parts extending out of the outer peripheral surface of the first shell; the gear shaping is movably arranged in the slot, and the moving direction is parallel to the axial direction of the first shell;

and the hydraulic device is connected with the first shell and used for controlling the oil pressure in each oil duct.

Furthermore, the control device comprises an electromagnet, a spring, a metal rod body and a mounting seat, wherein one end of the spring is fixedly connected with the electromagnet, the other end of the spring is fixedly connected with the metal rod body, and the mounting seat is fixedly connected with the electromagnet; the first shell is provided with a mounting hole for accommodating the control device, the mounting hole is communicated with the oil duct, and the axial direction of the mounting hole is vertical to the axial direction of the oil duct; the mounting seat is fixedly connected with the first shell, the metal rod body is movably arranged in the mounting hole, and the moving direction is parallel to the axial direction of the mounting hole; the metal rod body blocks the oil duct under the elastic force action of the spring.

Furthermore, one end of the metal rod body, which is far away from the spring, is provided with a hemispherical head; the bottom of the oil duct is provided with a hemispherical groove matched with the hemispherical head; when the metal rod body blocks the oil duct, the hemispherical head is inserted into the hemispherical groove.

Furthermore, the device also comprises an annular second shell and a shaft sleeve; the second shell comprises a second shell body and at least two limiting blocks arranged on one end face of the second shell body, and the limiting blocks are inserted into the slots; when the intermittent transmission gear is assembled, one end face, far away from the limiting block, of the second shell body abuts against a shaft shoulder of the assembling shaft, and the shaft sleeve is fixedly connected with the assembling shaft and tightly presses the first shell.

Further, the hydraulic device comprises

The annular cover cap is fixedly connected with the first shell to form a first cavity, hydraulic oil is injected into the first cavity, and the first cavity is communicated with each oil duct respectively;

the gear pump is arranged on the cover and is communicated with the first cavity; the oil cylinder is arranged on the cover and communicated with the gear pump.

Furthermore, the number of the slots is 10-20, and all the slots are uniformly distributed along the peripheral surface of the first shell.

In order to adapt to special working conditions and realize reciprocating intermittent motion with different motion and intermittent periods, the invention also provides a reciprocating intermittent transmission mechanism, which comprises:

the first moving mechanism comprises a moving piece, a first rack and a second rack, and the first rack and the second rack are respectively and symmetrically arranged on two sides of the moving piece;

any one of the two intermittent transmission gears is arranged on two sides of the first moving mechanism respectively, and the two intermittent transmission gears are meshed with the first rack and the second rack respectively;

and the first driving mechanism is in transmission connection with the two intermittent transmission gears respectively and is used for driving the intermittent transmission gears to rotate.

Furthermore, the first driving mechanism comprises a driving motor, a driving gear and two transmission assemblies, the driving gear is fixedly connected with an output shaft of the driving motor, and the transmission assemblies comprise transmission gears and transmission shafts fixedly connected with the transmission gears; the transmission gears of the two transmission assemblies are respectively meshed with the driving gear; the transmission shafts of the two transmission assemblies are respectively and fixedly connected with the two intermittent transmission gears.

In order to further adapt to different working conditions and realize reciprocating intermittent motion with different motion and intermittent periods, the invention also provides another reciprocating intermittent transmission mechanism which comprises

The second moving mechanism comprises a third rack, a fourth rack, a first connecting piece and a second connecting piece, the third rack and the fourth rack are symmetrically arranged, and the first connecting piece, the third rack, the second connecting piece and the fourth rack are sequentially connected to form a ring;

the intermittent transmission gear is positioned between the third rack and the fourth rack, and is respectively meshed with the third rack and the fourth rack;

and the second driving mechanism is in transmission connection with the intermittent transmission gear and is used for driving the intermittent transmission gear to rotate.

Furthermore, the first connecting piece and the second connecting piece are respectively in a semicircular ring shape.

Has the advantages that: 1. the intermittent transmission gear provided by the invention changes the number of teeth meshed with the driven gear or the driven rack of the intermittent transmission gear by controlling the movement of the gear shaping, so that the movement and intermittent periods in the intermittent transmission process are adjusted, and different special working conditions are adapted.

2. The intermittent transmission gear provided by the invention adjusts the movement of different gear shaping through the matching of the hydraulic device and the control device, and realizes the change of the number of meshing teeth.

3. According to the intermittent transmission gear provided by the invention, the intermittent transmission gear is assembled on the assembly shaft through the matching of the shaft sleeve and the second shell, the assembling difficulty of the intermittent transmission gear is simplified, and the moving distance of the gear shaping is limited.

4. According to the reciprocating intermittent transmission mechanism provided by the invention, through the matching of the two intermittent transmission gears and the two racks, the number of teeth meshed with the racks is changed by moving the gear shaping in the transmission process, so that the movement and the dead time of intermittent movement can be changed, and the reciprocating movement can be realized.

5. According to the other reciprocating intermittent transmission mechanism provided by the invention, through the matching of the intermittent transmission gear and the two racks, the number of teeth meshed with the racks is changed by moving the gear shaping in the transmission process, so that the movement and the dead time of intermittent movement can be changed, and the reciprocating movement can be realized.

Drawings

FIG. 1 is a schematic view of the overall structure of an intermittent drive gear and an assembly shaft after they are assembled in accordance with embodiment 1 of the present invention;

FIG. 2 is a schematic front view of an intermittent drive gear in embodiment 1 of the invention;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is an enlarged view of area B of FIG. 3;

FIG. 5 is an exploded view of an intermittent drive gear according to embodiment 1, which includes only one control device and one gear shaping;

FIG. 6 is a schematic structural view of a gear shaping in embodiment 1;

FIG. 7 is a schematic view showing one of the states of an intermittent drive gear in embodiment 1;

FIG. 8 is a second schematic view showing a state of an intermittent drive gear in the embodiment 1;

FIG. 9 is a schematic view of a reciprocating intermittent drive mechanism according to embodiment 2;

FIG. 10 is a schematic view of a first drive mechanism in embodiment 2;

FIG. 11 is a schematic view of another reciprocating intermittent drive mechanism in embodiment 3.

Reference numerals: 1. a first housing; 2. gear shaping; 3. a hydraulic device; 4. a shaft sleeve; 5. a second housing; 6. assembling a shaft; 7. a control device; 11. a slot; 12. an oil passage; 13. a first cavity; 14. mounting holes; 21. a connecting portion; 22. a piston portion; 23. a tooth portion; 31. a cover; 32. a gear pump; 33. an oil cylinder; 51. a limiting block; 71. a mounting seat; 72. a metal rod body; 73. a spring; 74. an electromagnet; 81. a first moving mechanism; 82. a first intermittent drive gear; 83. a second intermittent drive gear; 84. a first drive mechanism; 91. a second moving mechanism; 92. a third intermittent drive gear; 93. a second drive mechanism; 811. a first rack; 812. a second rack; 813. a moving member; 841. a driving gear; 842. a transmission gear; 911. a third rack; 912. a fourth rack; 913. a first connecting member; 914. a second connecting member.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all 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 application.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1 to 8, wherein fig. 1 is a schematic view of an overall structure of an intermittent drive gear assembled with an assembly shaft 6; FIG. 2 is a schematic front view of an intermittent drive gear; FIG. 3 is a cross-sectional view taken along A-A of FIG. 2; FIG. 4 is an enlarged view of area B of FIG. 3; fig. 5 is an exploded schematic view of an intermittent drive gear, and in order to facilitate clear illustration of the structure of the intermittent drive gear, only one control device 7 and one gear shaping 2 are shown in fig. 5; fig. 6 is a schematic structural view of the gear shaping 2; FIG. 7 is one of the schematic views showing the state of an intermittent drive gear; FIG. 8 is a second schematic view showing the state of the intermittent drive gear.

As shown in fig. 4 and 5, the intermittent drive gear provided by the present embodiment includes an annular first housing 1, and a total of 18 slots 11 are provided in the first housing 1, and the 18 slots 11 are arranged along the circumferential direction of the first housing 1; the first shell 1 is also internally provided with 18 oil ducts 12, and the 18 oil ducts 12 are respectively communicated with the 18 slots 11 in a one-to-one correspondence manner; the axial direction of the oil passage 12 is parallel to the axial direction of the first housing 1; a control device 7 for controlling the on-off of the oil channel 12 is respectively arranged in each oil channel 12;

a movable gear shaping 2 is inserted into each slot 11, the moving direction of the gear shaping 2 is parallel to the axial direction of the first housing 1, as shown in fig. 5 and 6, the gear shaping 2 includes a connecting portion 21 inserted into the slot 11, a piston portion 22 inserted into the oil passage 12, and a tooth portion 23 protruding to the outer peripheral surface of the first housing 1, and the intermittent drive gear is engaged with the driven gear or the rack through the exposed tooth portion 23;

the intermittent drive gear further comprises a hydraulic device 3, and the hydraulic device 3 is connected with the first shell 1 and used for controlling oil pressure in each oil duct 12.

Specifically, in the present embodiment, the length of the slot 11 is 25 to 30mm, the thickness of the tooth portion 23 is 10mm, that is, the length of the slot 11 needs to be greater than twice the thickness of the tooth portion 23, and the thickness of the tooth portion 23 of the driven gear or rack is equal to the thickness of the tooth portion 23 of the intermittent drive gear, and is also 10 mm; the hydraulic device 3 drives the hydraulic oil in the oil duct 12 to move, so that the gear shaping 2 is driven to move in the slot 11, and the gear shaping 2 can be divided into an engaged state and a non-engaged state.

Specifically, in order to enable the intermittent drive gear to be rapidly meshed with the corresponding gear or rack, as shown in fig. 6, one end of the tooth portion 23 of the gear shaping 2, which is far away from the connecting portion 21, is arc-shaped.

It should be noted that, in the present invention, the meshing state means that the tooth portion 23 can enter the tooth slot of the corresponding gear or rack to realize transmission in the rotating process of the intermittent transmission gear; the non-meshing state means that the tooth part 23 and the tooth groove of the corresponding gear or rack are staggered in the axial direction in the rotating process of the intermittent transmission gear, and transmission cannot be achieved.

In the present embodiment, the movement of the pinion 2 is driven by the hydraulic device 3 to change the pinion 2 to the meshing state and the non-meshing state, thereby changing the number of meshing teeth between the intermittent drive gear and the driven gear or rack thereof; when the number of the meshing teeth is large, the time of the pause in the intermittent motion is short, and when the number of the meshing teeth is small, the time of the pause in the intermittent motion is long; therefore, the intermittent transmission gear changes the movement and the dead cycle in the intermittent movement process and is suitable for different working conditions.

In the present embodiment, the control device 7 adopts an electromagnetic control method. Specifically, the control device 7 includes an electromagnet 74, a spring 73, a metal rod 72, and an installation seat 71, wherein one end of the spring 73 is fixedly connected to the electromagnet 74, the other end of the spring 73 is fixedly connected to the metal rod 72, and the installation seat 71 is fixedly connected to the electromagnet 74; the first shell 1 is provided with a mounting hole 14 for accommodating the control device 7, one oil passage 12 corresponds to one mounting hole 14, the oil passage 12 is communicated with the mounting hole 14, and the axial direction of the mounting hole 14 is perpendicular to the axial direction of the corresponding oil passage 12. Specifically, when the control device 7 is installed, the metal rod 72 and the electromagnet 74 are inserted into the installation hole 14, the installation seat 71 is exposed from the installation hole 14 and is fixedly connected with the first casing 1, the metal rod 72 can move along the axial direction of the installation hole 14, and the metal rod 72 blocks the oil passage 12 under the elastic force of the spring 73 to cut off the flow of oil; when the electromagnet 74 is energized, magnetic force is generated to attract the metal rod 72, and the metal rod 72 moves toward the electromagnet 74 against the elastic force of the spring 73, so that the oil passage 12 is opened.

In this embodiment, when the position of a certain gear shaping 2 needs to be fixed, cut off the circulation of fluid through the metal rod body 72 for even change the oil pressure in the oil duct 12 through hydraulic means 3, this gear shaping 2 also no longer removes, simultaneously, utilizes the incompressibility of fluid, when the tooth portion 23 of gear shaping 2 and rack or gear engagement transmission, can guarantee the stability of gear shaping 2, thereby guarantees driven stability. When the position of one of the gear shaping gears 2 needs to be changed, the oil channel 12 is conducted, and the oil pressure in the oil channel 12 is changed through the hydraulic device 3, so that the position of the gear shaping gear 2 can be changed, namely, the gear part 23 of the gear shaping gear 2 is changed into a meshing state or a non-meshing state with a rack or a gear. In the embodiment, the movement of the gear shaping 2 is controlled by adopting hydraulic pressure, so that the moving stability and the meshing stability of the gear shaping 2 can be effectively ensured.

In the present embodiment, as shown in fig. 3, in order to ensure the thoroughness of the metal rod 72 in cutting off the oil passage 12, one end of the metal rod 72, which is far away from the spring 73, is provided with a hemispherical head; the bottom of the oil duct 12 is provided with a hemispherical groove matched with the hemispherical head; when the metal rod body 72 blocks the oil duct 12, the hemispherical head is inserted into the hemispherical groove.

In this embodiment, in order to facilitate the assembly of the intermittent drive gear, as shown in fig. 5, the intermittent drive gear further includes an annular second housing 5 and a shaft sleeve 4, the second housing 5 includes an annular second housing 5 body and 18 limit blocks 51 disposed on an end surface of the second housing 5 body, and the limit blocks 51 are inserted into the insertion slots 11; specifically, the slot 11 includes a first opening and a second opening, the orientation of the first opening is perpendicular to the orientation of the second opening, the tooth portion 23 of the gear shaping 2 extends out to the outer peripheral surface of the first housing 1 along the first opening, the second opening of the limit block 51 is inserted into the slot 11, when the intermittent transmission gear is assembled, one end surface of the body of the second housing 5, which is far away from the limit block 51, abuts against a shaft shoulder of the assembly shaft 6, the shaft sleeve 4 is fixedly connected with the assembly shaft 6 and compresses the first housing 1, and the assembled structural schematic diagram is shown in fig. 1.

In the present embodiment, as shown in fig. 2 and 5, the hydraulic device 3 includes an annular cover 31, a gear pump 32, and an oil cylinder 33, the cover 31 is fixedly connected to the first casing 1, a first cavity 13 is formed between the cover 31 and the first casing 1, hydraulic oil is filled in the first cavity 13, and the first cavity 13 is respectively communicated with each oil passage 12; the gear pump 32 is mounted on the cover 31 and is communicated with the first cavity 13; the oil cylinder 33 is mounted on the cover 31 and communicates with the gear pump 32. The oil pressure in the first cavity 13 is adjusted by forward rotation or reverse rotation of the gear pump 32, so that the oil pressure in each oil passage 12 is adjusted, and the movement of the gear shaping 2 is realized.

The specific use mode of the intermittent drive gear provided by the embodiment comprises the following steps:

when the down time needs to be increased, the electromagnet 74 corresponding to the gear shaping 2 needing to be moved is electrified, and the oil passage 12 corresponding to the gear shaping 2 is conducted; through the gear pump 32 with the fluid pump in the hydro-cylinder 33 go into first cavity 13 in, make the oil pressure increase in the first cavity 13, fluid promotes corresponding gear shaping 2 and moves until offsetting with stopper 51 towards stopper 51 to reduce the number of teeth of meshing and increase down time, after removing the completion, make electro-magnet 74 outage, corresponding oil duct 12 blocks up once more, guarantees the stability of gear shaping 2. The adjusted state of the intermittent drive gear is shown in fig. 7.

When the down time needs to be reduced, the electromagnet 74 corresponding to the gear shaping 2 needing to be moved is electrified, and the oil passage 12 corresponding to the gear shaping 2 is conducted; the oil pump 32 is used for pumping oil in the first cavity 13 into the oil cylinder 33, so that the oil pressure in the first cavity 13 is reduced, the corresponding gear shaping 2 is far away from the limiting block 51 under the action of the oil pressure and moves until the limiting block offsets the side wall of the slot 11, therefore, the number of teeth of meshing is increased to reduce the dead time, after the movement is completed, the electromagnet 74 is powered off, the corresponding oil duct 12 is blocked again, and the stability of the gear shaping 2 is guaranteed. The adjusted state of the intermittent drive gear is shown in fig. 8.

It should be noted that in this embodiment, the arrangement of the slots 11 provided in the first housing 1 does not necessarily need to be completely distributed on the outer peripheral surface of the first housing 1, the number of the slots 11 may be two or more, and it is only necessary to ensure that the intervals between the slots 11 are equal, and the tooth portions 23 of the gear shaping 2 can mesh with corresponding gears or racks.

Example 2

In order to adapt to special working conditions, the embodiment provides a reciprocating intermittent transmission mechanism which can adjust the movement and the rest period of the intermittent movement while executing the reciprocating intermittent movement.

Specifically, as shown in FIG. 9, the reciprocating intermittent drive mechanism includes

The first moving mechanism 81 comprises a moving member 813, a first rack 811 and a second rack 812, wherein the first rack 811 and the second rack 812 are respectively arranged at two sides of the moving member 813, the first rack 811 and the second rack 812 can be fixedly installed with the moving member 813, or can be integrally formed with the moving member 813, and the tooth parts 23 of the first rack 811 and the second rack 812 respectively face the outer sides of the moving member 813;

two intermittent drive gears as described in embodiment 1, that is, a first intermittent drive gear 82 and a second intermittent drive gear 83, the first intermittent drive gear 82 being meshed with the first rack 811, the second intermittent drive gear 83 being meshed with the second rack 812;

and the first driving mechanism 84 and the first transmission mechanism are respectively connected with the two intermittent transmission gears and are used for driving the intermittent transmission gears to rotate.

The reciprocating intermittent transmission mechanism provided by the embodiment can drive the gear shaping 2 to move through the hydraulic device 3 in the motion process, and can realize various motion modes. For example:

in the first mode, the hydraulic driving device drives all the gear shaping 2 of the first intermittent drive gear 82 to move towards the limiting block 51, so that all the gear shaping 2 of the first intermittent drive gear 82 and the first rack 811 are in a non-meshed state; the hydraulic device 3 drives all the gear shaping 2 of the second intermittent drive gear 83 to move away from the limit block 51, so that all the gear shaping 2 of the second intermittent drive gear 83 are in a meshed state with the second rack 812, and the moving part 813 moves continuously in a single direction;

in the second mode, the hydraulic driving device drives all the gear shaping 2 of the first intermittent drive gear 82 to move towards the limiting block 51, so that all the gear shaping 2 of the first intermittent drive gear 82 and the first rack 811 are in a non-meshed state; the hydraulic device 3 drives part of the gear shaping 2 of the second intermittent drive gear 83 to move away from the limit block 51, so that part of the gear shaping 2 of the second intermittent drive gear 83 is meshed with the second rack 812, and the moving part 813 moves intermittently in a single direction; the period of movement and stoppage in the intermittent movement is changed by changing the number of the gear shaping 2 in the engaged state;

in the third mode, the hydraulic driving device drives all the gear shaping 2 of the first intermittent driving gear 82 to move away from the limiting block 51, so that all the gear shaping 2 of the first intermittent driving gear 82 are meshed with the first rack 811; the hydraulic device 3 drives all the gear shaping 2 of the second intermittent drive gear 83 to move towards the limit block 51, so that all the gear shaping 2 of the second intermittent drive gear 83 are in a non-meshed state with the second rack 812, and the moving piece 813 moves continuously in another single direction;

in the fourth mode, the hydraulic driving device drives part of the gear shaping 2 of the first intermittent transmission gear 82 to move away from the limiting block 51, so that part of the gear shaping 2 of the first intermittent transmission gear 82 is meshed with the first rack 811; the hydraulic device 3 drives all the gear shaping 2 of the second intermittent drive gear 83 to move towards the limit block 51, so that all the gear shaping 2 of the second intermittent drive gear 83 are in a non-meshed state with the second rack 812, and the moving piece 813 moves intermittently in another single direction; the period of movement and stoppage in the intermittent movement is changed by changing the number of the gear shaping 2 in the engaged state;

in the fifth mode, the hydraulic driving device drives part of the gear shaping 2 of the first intermittent transmission gear 82 to move away from the limiting block 51, so that part of the gear shaping 2 of the first intermittent transmission gear 82 is meshed with the first rack 811; the hydraulic device 3 drives part of the gear shaping 2 of the second intermittent transmission gear 83 to move away from the limiting block 51, so that part of the gear shaping 2 of the second intermittent transmission gear 83 is meshed with the second rack 812, and the moving part 813 forms reciprocating intermittent motion; the movement and the dead time period of the intermittent movement board are changed by adjusting the number of the inserted teeth 2 in which the first intermittent drive gear 82 or the second intermittent drive gear 83 is in the meshing state.

Fig. 9 shows a schematic view of the state of the reciprocating intermittent drive mechanism corresponding to the fifth motion mode.

As shown in fig. 10, in this embodiment, in order to ensure that the first intermittent drive gear 82 and the second intermittent drive gear 83 rotate at the same speed, the first driving mechanism 84 includes a driving motor, a driving gear 841, and two transmission assemblies, the driving gear 841 is fixedly connected with an output shaft of the driving motor, and the transmission assemblies include a transmission gear 842 and a transmission shaft fixedly connected with the transmission gear 842; the transmission gears 842 of the two transmission assemblies are respectively meshed with the driving gear 841; the transmission shafts of the two transmission assemblies are respectively and fixedly connected with the two intermittent transmission gears.

Example 3

To accommodate particular operating conditions, the present embodiment provides an alternative reciprocating intermittent drive mechanism comprising

The second moving mechanism 91 comprises a third rack 911, a fourth rack 912, a first connecting piece 913 and a second connecting piece 914, the third rack 911 and the fourth rack 912 are symmetrically arranged, and the first connecting piece 913, the third rack 911, the second connecting piece 914 and the fourth rack 912 are sequentially connected to form a ring shape;

an intermittent drive gear in embodiment 1, that is, a third intermittent drive gear 92, the third intermittent drive gear 92 is located between a third rack 911 and a fourth rack 912, and a toothed part 23 of the third intermittent drive gear 92 is meshed with the third rack 911 and the fourth rack 912, respectively

And the second driving mechanism 93 is in transmission connection with the intermittent transmission gear and is used for driving the intermittent transmission gear to rotate.

In the embodiment, a part of the gear shaping 2 is driven by the hydraulic device 3 to move towards the limiting block 51, so that the part of the gear shaping 2 is respectively in an engaged state with the third rack 911 and the fourth rack 912, and the other part of the gear shaping 2 is not in an engaged state with the third rack 911 and the fourth rack 912, as shown in fig. 11; when the gear shaping 2 in the meshing state rotates to mesh with the third rack 911 during the rotation, the gear shaping 2 meshing with the fourth gear does not exist in the third intermittent drive gear 92, and the second moving mechanism 91 is driven to move in a single direction; in the same way; when the pinion 2 in the engaged state rotates to be engaged with the fourth rack 912 in the rotation process, the pinion 2 engaged with the third gear does not exist in the third intermittent drive gear 92, so that the reciprocating intermittent movement of the second moving mechanism 91 is realized. The number of the gear shaping 2 in the meshing state is changed by driving the gear shaping 2 to move through the hydraulic device 3, so that the motion and the dead time period of the intermittent motion are changed.

Example 4

Because the first shell 1 in the intermittent drive gear needs to be provided with the plurality of oil ducts 12 and the slots 11, and the first shell 1 needs to bear the circumferential force and the radial force generated by the gear shaping 2 in the transmission process, the strength of the first shell 1 needs to be ensured so as to ensure the stability of the intermittent drive gear in the transmission process.

The embodiment provides a processing method of the first shell 1, which comprises the following steps

S1, establishing a 3D model of a first shell 1;

s2, slicing the 3D model, and sending sliced data to a 3D printer;

s3, printing the composite zirconia powder to form a first shell 1 by using an SLS printing technology, wherein the laser power is 180-240W in the printing process, and the thickness of each layer of dusting powder is 50 um; the composite zirconia powder comprises the following components in parts by weight: 20-40 parts of zirconium dioxide, 1-5 parts of yttrium oxide, 5-8 parts of a binder and 12-15 parts of a binder;

the auxiliary agent is aluminum oxide or magnesium oxide;

the binder is one or more than two of sodium carboxymethylcellulose, polymethyl methacrylate, carrageenan and silicon dioxide.

The process for preparing the composite zirconia powder comprises the steps of mixing and ball-milling the zirconia powder, the yttrium oxide, the auxiliary binder and the adhesive for 14-18 hours according to the material ratio to obtain the composite zirconia powder with the powder granularity of 10-25 um.

In the embodiment, in order to ensure the stability of the intermittent transmission gear in the transmission process, a 3D printing technology is adopted to form composite zirconia powder to obtain the first shell 1, and the gear shaping 2 of the first shell 1 is ensured to bear the acting force of the gear shaping 2 in the transmission process by utilizing the ultrahigh hardness, wear resistance and strength of zirconia; the zirconia-compliant powder prepared by the above proportioning and manner further ensures the mechanical property of the first shell 1 by using the zirconia crystal structure stabilized by yttria, thereby ensuring the stability of the intermittent transmission gear in the transmission process.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several equivalent substitutions or obvious modifications can be made without departing from the spirit of the invention, and all the properties or uses are considered to be within the scope of the invention.

Claims

1. An intermittent drive gear, comprising:

the oil-gas separator comprises an annular first shell (1), wherein at least two slots (11) and oil passages (12) respectively communicated with the slots (11) are arranged in the first shell (1); the axial direction of the oil duct (12) is parallel to the axial direction of the first shell (1), and a control device (7) for controlling the on-off of the oil duct (12) is installed in the oil duct (12);

the gear shaping device comprises at least two gear shaping teeth (2), wherein each gear shaping tooth (2) comprises a connecting part (21) inserted into a slot (11), a piston part (22) inserted into an oil channel (12), and a tooth part (23) extending out of the outer peripheral surface of the first shell (1); the gear shaping (2) is movably arranged in the slot (11), and the moving direction is parallel to the axial direction of the first shell (1);

and the hydraulic device (3) is connected with the first shell (1) and is used for controlling the oil pressure in each oil duct (12).

2. An intermittent drive gear as defined in claim 1, wherein: the control device (7) comprises an electromagnet (74), a spring (73), a metal rod body (72) and a mounting seat (71), one end of the spring (73) is fixedly connected with the electromagnet (74), the other end of the spring (73) is fixedly connected with the metal rod body (72), and the mounting seat (71) is fixedly connected with the electromagnet (74); the first shell (1) is provided with a mounting hole (14) for accommodating the control device (7), the mounting hole (14) is communicated with the oil duct (12), and the axial direction of the mounting hole (14) is perpendicular to the axial direction of the oil duct (12); the mounting seat (71) is fixedly connected with the first shell (1), the metal rod body (72) is movably arranged in the mounting hole (14), and the moving direction is parallel to the axial direction of the mounting hole (14); the metal rod body (72) blocks the oil channel (12) under the elastic force action of the spring (73).

3. An intermittent drive gear as defined in claim 2, wherein: one end of the metal rod body (72) far away from the spring (73) is provided with a hemispherical head; the bottom of the oil duct (12) is provided with a hemispherical groove matched with the hemispherical head; when the metal rod body (72) blocks the oil duct (12), the hemispherical head is inserted into the hemispherical groove.

4. An intermittent drive gear as defined in claim 1, wherein: the device also comprises an annular second shell (5) and a shaft sleeve (4); the second shell (5) comprises a second shell body and at least two limiting blocks (51) arranged on one end face of the second shell body, and the limiting blocks (51) are inserted into the slots (11); when the intermittent transmission gear is assembled, one end face, far away from the limiting block (51), of the second shell body is abutted against a shaft shoulder of the assembling shaft (6), and the shaft sleeve (4) is fixedly connected with the assembling shaft (6) and tightly presses the first shell (1).

5. An intermittent drive gear as defined in claim 1, wherein: the hydraulic device (3) comprises

The oil pump comprises an annular cover cap (31), wherein the cover cap (31) is fixedly connected with a first shell (1) to form a first cavity (13), hydraulic oil is injected into the first cavity (13), and the first cavity (13) is respectively communicated with each oil duct (12);

the gear pump (32) and the oil cylinder (33) are arranged, and the gear pump (32) is arranged on the cover cap (31) and is communicated with the first cavity (13); the oil cylinder (33) is arranged on the cover cap (31) and is communicated with the gear pump (32).

6. An intermittent drive gear according to claim 1, wherein the number of the slots (11) is 10 to 20, and all the slots (11) are uniformly distributed along the outer peripheral surface of the first housing (1).

7. A reciprocating intermittent drive mechanism, comprising:

the first moving mechanism (81) comprises a moving part (813), a first rack (811) and a second rack (812), wherein the first rack (811) and the second rack (812) are respectively and symmetrically arranged on two sides of the moving part (813);

two intermittent drive gears according to any one of claims 1 to 6, wherein the two intermittent drive gears are respectively arranged on both sides of the first moving mechanism (81), and are respectively meshed with the first rack (811) and the second rack (812);

the first driving mechanism (84) is in transmission connection with the two intermittent transmission gears respectively and used for driving the intermittent transmission gears to rotate.

8. A reciprocating intermittent drive mechanism as defined in claim 7 wherein: the first driving mechanism (84) comprises a driving motor, a driving gear (841) and two transmission assemblies, the driving gear (841) is fixedly connected with an output shaft of the driving motor, and each transmission assembly comprises a transmission gear (842) and a transmission shaft fixedly connected with the transmission gear (842); the transmission gears (842) of the two transmission assemblies are respectively meshed with the driving gear (841); the transmission shafts of the two transmission assemblies are respectively and fixedly connected with the two intermittent transmission gears.

9. A reciprocating intermittent transmission mechanism is characterized in that: comprises that

The second moving mechanism (91) comprises a third rack (911), a fourth rack (912), a first connecting piece (913) and a second connecting piece (914), the third rack (911) and the fourth rack (912) are symmetrically arranged, and the first connecting piece (913), the third rack (911), the second connecting piece (914) and the fourth rack (912) are sequentially connected to form a ring shape;

an intermittent drive gear according to any one of claims 1 to 6, said intermittent drive gear being located between a third rack (911) and a fourth rack (912), and being engaged with the third rack (911) and the fourth rack (912), respectively;

and the second driving mechanism (93) is in transmission connection with the intermittent transmission gear and is used for driving the intermittent transmission gear to rotate.

10. A reciprocating intermittent drive mechanism as defined in claim 9 wherein: the first connecting piece (913) and the second connecting piece (914) are respectively in a semicircular ring shape.