CN209912322U - Imitative chewing device with flexible temporomandibular joint - Google Patents
Imitative chewing device with flexible temporomandibular joint Download PDFInfo
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- CN209912322U CN209912322U CN201920577702.4U CN201920577702U CN209912322U CN 209912322 U CN209912322 U CN 209912322U CN 201920577702 U CN201920577702 U CN 201920577702U CN 209912322 U CN209912322 U CN 209912322U
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Abstract
The utility model relates to an imitative device of chewing with flexible temporomandibular joint, install the upper jaw in the frame and decide the platform, the upper jaw is decided the platform below and is provided with the lower jaw and moves the platform, the upper jaw is decided the platform and is connected with the lower jaw through two sets of flexible temporomandibular joint and two sets of reset spring, the vertical setting of flexible temporomandibular joint and fixed mounting are at the well rear portion of upper jaw fixed platform, two sets of flexible temporomandibular joint transversely set up side by side, two sets of reset spring are located upper jaw respectively and decide platform and lower jaw and move the platform both sides, the both sides front end that the lower jaw moved the platform is equallyd divide and is do not connected with two drive arrangement transmissions through flexible cable, every drive arrangement is used for moving the platform for the lower jaw of homonymy and provides decurrent and antecedent drive power, two sets of flexible temporomandibular joint provide rotation support. The device has the advantages of simple structure, high bionic degree, good flexibility and the like, and can be used in the fields of false tooth material detection, medical teaching and the like.
Description
Technical Field
The utility model relates to a simulation machine technical field, specific imitative mastication device with flexible temporomandibular joint that says so.
Background
Faux chewing devices are a class of mechanical devices that can simulate the behavior of human chewing. The novel chewing gum can truly reproduce the chewing action of human beings and collect and analyze chewing information including chewing force, speed, vibration and the like. The artificial chewing device is a comprehensive bionic robot system integrating trajectory planning, a sensing system, a real-time control system and biological simulation, and research results of the artificial chewing device can be applied to the fields of dental training, food evaluation, language medical treatment and the like.
The human mandible is driven by masticatory muscles, and does complex opening and closing movement in three-dimensional space relative to the maxilla under the constraint of temporomandibular joint. As one of the most complex motor joints of the human body, the temporomandibular joint has multiple axes of instantaneous motion with the condyloid process having a compound motion pattern of rotation and sliding with varying degrees of mandibular opening. The temporomandibular joint plays an important role in the mandibular system, and is coordinated and constrained with the masticatory muscles, ensuring efficient, smooth and stable masticatory movement of the human mandible. The existing chewing device does not fully consider the structure, the function and the compound movement form of the temporomandibular joint, so that the existing chewing device is deficient in the bionic aspect and cannot truly reproduce the movement and biomechanical characteristics of the mandible.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide an imitative chewing device with flexible temporomandibular joint, the device have simple structure, bionical degree height, compliance advantage such as good, can be applied to scientific fields such as food rerum natura aassessment, artificial tooth material detection, medical teaching.
In order to solve the technical problem, the utility model discloses a technical scheme does:
a simulated chew device having a flexible temporomandibular joint characterized by: comprises a frame, an upper jaw fixed platform which is horizontally arranged is arranged on the frame, a lower jaw movable platform is arranged below the upper jaw fixed platform, the upper jaw fixed platform is connected with the lower jaw movable platform through two groups of flexible temporomandibular joints and two groups of reset springs, the flexible temporomandibular joints are vertically arranged and fixedly arranged at the middle rear part of the upper maxillary fixed platform, the two groups of flexible temporomandibular joints are transversely arranged side by side, the two groups of reset springs are respectively positioned at two sides of the upper jaw fixed platform and the lower jaw moving platform, the front ends of the two sides of the lower jaw moving platform are respectively in transmission connection with two driving devices through flexible cables, each driving device is used for providing downward and forward driving force for the lower jaw moving platform at the same side, the two groups of flexible temporomandibular joints provide rotary support for the movement of the mandible platform, and the two groups of reset springs are used for providing power for the reset movement of the mandible platform.
The frame include the base and keep apart the platform, the top that keeps apart the platform level and be located the base, isolation platform lower surface through a plurality of support columns and base fixed connection, the last fixed surface of isolation platform install L shape hanger plate, L shape hanger plate include the diaphragm that the top level set up, the upper jaw decide the platform pass through the cooperation fixed mounting of bolt and nut at the lower surface of diaphragm.
Two drive arrangement set up respectively at the upper surface front end both sides edge of base, drive arrangement's output shaft and cable pulley transmission be connected, cable pulley and flexible cable one end fixed connection, the flexible cable other end passes switching-over pulley and flexible cable connecting hole fixed connection, switching-over pulley fixed mounting at the upper surface front end both sides edge of keeping apart the platform, flexible cable connecting hole fixed mounting at jaw movable platform both sides wall front end.
The driving device comprises a motor, an output shaft of the motor is in transmission connection with an input shaft of a speed reducer, an output shaft of the speed reducer is in transmission connection with a cable wheel through a coupler, the motor and the speed reducer are fixedly installed on a motor base, the motor base is fixedly connected with a base, the cable wheel is rotatably connected with the cable wheel base, and the cable wheel base is fixedly connected with the base.
The back side of the upper jaw fixed platform is provided with a plurality of screw holes, the bolts sequentially penetrate through a transverse plate and the screw holes at the top of the L-shaped hanging plate, the upper jaw fixed platform is fixedly arranged on the lower surface of the transverse plate at the top of the L-shaped hanging plate through a matched nut, spring fixing holes are fixedly arranged at the tail ends of two side walls of the upper jaw fixed platform, spring fixing holes are fixedly arranged in the middle of two side walls of the lower jaw movable platform, and the spring fixing holes are used for fixing the end portions of the reset springs.
The lower surface of the rear side of the upper jaw fixed platform is fixedly provided with two groups of slide rail seats, a linear guide rod is fixedly arranged between the two groups of slide rail seats, the axial direction of the linear guide rod is used for determining the front-back motion direction of the lower jaw movable platform, the linear guide rod penetrates through a sliding block, the sliding block can freely slide along the axial direction of the linear guide rod, a first spring is nested on the linear guide rod, one end of the first spring is connected with the sliding block, the other end of the first spring is connected with the slide rail seat close to one side of a driving device, the lower surface of the sliding block is fixedly provided with a spherical hinge seat, a ball head is embedded in the spherical hinge seat, the lower end of the ball head is fixedly connected with a connecting rod, the ball head can rotate on the spherical hinge seat, a horizontally arranged spring installation sheet is sheathed outside the connecting rod, the spring installation sheet is nested on the, a plurality of second springs are arranged between the upper surface of the spring mounting plate and the lower surface of the sliding block, the second springs surround the connecting rod and are uniformly distributed, and the bottom end of the connecting rod is fixedly connected with the upper surface of the mandible moving platform.
The lower surface of the ball head is fixedly provided with a limiting end cover, the inner surface of the limiting end cover is provided with a limiting cambered surface, and the limiting cambered surface is used for limiting the inclination angle of the connecting rod.
The fixed surface of spring mounting piece install the spacing ring, but holding screw passes the spacing ring and is connected with the connecting rod split in close contact with, holding screw be used for spacing spring mounting piece.
The simulated chewing device with the flexible temporomandibular joint can produce the following beneficial effects: firstly, the driving device pulls the mandible platform to move through the flexible cables, the traction force of the flexible cables provides forward and downward traction force for the mandible platform to move, the movement of the peristome is simulated, and when the flexible cables on two sides are symmetrically contracted, the simulation of the cutting and biting action of a human body during chewing is completed; when the flexible cables on the two sides are asymmetrically contracted, the simulation of grinding action when the human is chewed is finished. And secondly, the flexible temporomandibular joint is used for simulating the temporomandibular joint of the human body, a multi-angle rotating and resetting mechanism is provided, a rotating fulcrum is provided for the movement of the mandible platform, and the mandible platform can be assisted to reset. Thirdly, the sliding rail and the ball pair are provided with springs to provide good flexibility for the movement of the mandible platform, the provided flexible temporomandibular joint can fully restore the movement form of the human temporomandibular joint, the simulation of the human mandible system is more real, and the bionic performance of the chewing device is greatly improved. Fourthly, the flexible cable is driven by matching with a return spring, and compared with the existing rigidly driven chewing device, the flexible chewing device has the advantages of simple structure, good flexibility and the like; the flexible cable simulates the peristome to provide downward and forward pulling force, and the return spring simulates the obturator muscle to provide upward and backward pulling force, so that the force application characteristic of the chewing system is met.
Drawings
Fig. 1 is a schematic structural view of a simulated chewing device with a flexible temporomandibular joint of the present invention.
Fig. 2 is a schematic structural view of the frame and the driving device of the artificial chewing device with flexible temporomandibular joint of the present invention.
Fig. 3 is a side view of the present invention of a simulated chew device having a flexible temporomandibular joint.
Fig. 4 is a schematic structural view of the flexible temporomandibular joint of the artificial chewing device with the flexible temporomandibular joint of the present invention.
Fig. 5 is a schematic structural view of the chewing device-simulated spacing cambered surface with the flexible temporomandibular joint of the present invention.
Fig. 6 is a schematic position diagram of a flexible cable connecting hole of a simulated chewing device with a flexible temporomandibular joint of the present invention.
The attached drawings of the specification are marked as follows: 1. a frame; 2. a maxillary fixed platform; 3. a flexible temporomandibular joint; 4. a lower jaw moving platform; 5. a return spring; 6. a drive device; 7. a diverting pulley;
11. a base; 12. a support pillar; 13. isolating the platform; 14. an L-shaped hanger plate; 15. a bolt; 16. a nut;
21. a spring fixing hole; 22. a screw hole;
31. a slide rail seat; 32. a linear guide rod; 33. a slider; 34. a first spring; 35. a spherical hinge seat; 36. a ball head; 37. a connecting rod; 38. a limiting end cover; 39. a spring mounting tab;
310. tightening the screw; 311. a second spring; 312. limiting the arc surface;
41. a flexible cable connecting hole;
61. a motor; 62. a speed reducer; 63. a motor base; 64. a coupling; 65. a cable pulley; 66. a cable pulley seat; 67. and (4) a flexible cable.
Detailed Description
The invention is further described below with reference to the drawings and specific preferred embodiments.
As shown in fig. 1, a simulated chewing device with a flexible temporomandibular joint is characterized by: the device comprises a rack 1, wherein a horizontally arranged upper jaw fixed platform 2 is arranged on the rack 1, a lower jaw movable platform 4 is arranged below the upper jaw fixed platform 2, the upper jaw fixed platform 2 is connected with the lower jaw movable platform 4 through two groups of flexible temporomandibular joints 3 and two groups of reset springs 5, the flexible temporomandibular joints 3 are vertically arranged and fixedly arranged at the middle rear part of the upper jaw fixed platform 2, the two groups of flexible temporomandibular joints 3 are transversely arranged side by side, the two groups of reset springs 5 are respectively arranged at two sides of the upper jaw fixed platform 2 and the lower jaw movable platform 4, the front ends of two sides of the lower jaw movable platform 4 are respectively in transmission connection with two driving devices 6 through flexible cables 67, each driving device 6 is used for providing downward and forward driving force for the lower jaw movable platform 4 at the same side, and the two groups of flexible temporomandibular joints 3 provide rotary support for the movement of the lower jaw movable platform 4, the two groups of return springs 5 are used for providing power for the return movement of the mandible platform 4.
In this embodiment, frame 1 includes base 11 and isolation platform 13, isolation platform 13 level be located the top of base 11, isolation platform 13 lower surface through a plurality of support columns 12 and base 11 fixed connection, isolation platform 13's last fixed surface install L shape hanger plate 14, L shape hanger plate 14 include the diaphragm that the top level set up, upper jaw fixed platform 2 pass through the cooperation fixed mounting of bolt 15 and nut 16 at the lower surface of diaphragm.
In this embodiment, two drive arrangement 6 set up respectively at the upper surface front end both sides edge of base 11, drive arrangement 6's output shaft and cable pulley 65 transmission be connected, cable pulley 65 and flexible cable 67 one end fixed connection, the flexible cable 67 other end passes switching-over pulley 7 and flexible cable connecting hole 41 fixed connection, switching-over pulley 7 fixed mounting at the upper surface front end both sides edge of keeping apart platform 13, flexible cable connecting hole 41 fixed mounting at the both sides wall front end of lower jaw movable platform 4.
In this embodiment, the driving device 6 includes a motor 61, an output shaft of the motor 61 is in transmission connection with an input shaft of a speed reducer 62, an output shaft of the speed reducer 62 is in transmission connection with a cable wheel 65 through a coupling 64, the motor 61 and the speed reducer 62 are fixedly mounted on a motor base 63, the motor base 63 is fixedly connected with the base 11, the cable wheel 65 is rotatably connected with a cable wheel base 66, and the cable wheel base 66 is fixedly connected with the base 11.
In this embodiment, the rear side of the upper jaw fixed platform 2 is provided with a plurality of screw holes 22, the bolt 15 sequentially penetrates through the transverse plate and the screw holes 22 at the top of the L-shaped hanging plate 14, the matched nut 16 is used for fixedly mounting the upper jaw fixed platform 2 on the lower surface of the transverse plate at the top of the L-shaped hanging plate 14, the tail ends of the two side walls of the upper jaw fixed platform 2 are fixedly provided with spring fixing holes 21, the middle parts of the two side walls of the lower jaw movable platform 4 are fixedly provided with spring fixing holes 21, and the spring fixing holes 21 are used for fixing the end parts of the reset springs 5.
In this embodiment, two sets of slide rail seats 31 are fixedly installed on the lower surface of the rear side of the maxillary fixed platform 2, a linear guide rod 32 is fixedly installed between the two sets of slide rail seats 31, the axial direction of the linear guide rod 32 is used for determining the front-rear movement direction of the mandibular movable platform 4, the linear guide rod 32 passes through a slide block 33, the slide block 33 can freely slide along the axial direction of the linear guide rod 32, a first spring 34 is nested on the linear guide rod 32, one end of the first spring 34 is connected with the slide block 33, the other end of the first spring is connected with the slide rail seat 31 close to one side of the driving device 6, a ball hinge seat 35 is fixedly installed on the lower surface of the slide block 33, a ball head 36 is embedded in the ball hinge seat 35, the lower end of the ball head 36 is fixedly connected with a connecting rod 37, the ball head 36 can rotate on the ball hinge seat 35, a spring installation piece 39 which is horizontally, the spring mounting plate 39 is nested on the connecting rod 37 and can axially slide along the connecting rod 37, a plurality of second springs 311 are mounted between the upper surface of the spring mounting plate 39 and the lower surface of the sliding block 33, the plurality of second springs 311 surround the connecting rod 37 and are uniformly distributed, and the bottom end of the connecting rod 37 is fixedly connected with the upper surface of the lower jaw moving platform 4.
In this embodiment, the lower surface of the ball head 36 is fixedly provided with a limiting end cover 38, the inner surface of the limiting end cover 38 is provided with a limiting arc surface 312, and the limiting arc surface 312 is used for limiting the inclination angle of the connecting rod 37.
In this embodiment, a limiting ring is fixedly mounted on the surface of the spring mounting plate 39, the set screw 310 passes through the limiting ring and is detachably connected with the connecting rod 37 in close contact, and the set screw 310 is used for limiting the spring mounting plate 39.
Further, when the artificial chewing device does not work, under the constraint of the first spring 34, the second spring 311 and the return spring 5, the sliding block 33 is tightly attached to the rear end of the sliding rail seat 31, the connecting rod 37 is in the vertical direction, and the mandible moving platform 4 keeps the jaw closing state.
When the two groups of driving devices 6 symmetrically retract cables, the two groups of flexible temporomandibular joints 3 symmetrically move, the sliding blocks 33 on the two sides synchronously slide forwards along the linear guide rods 32 along with the rotation of the connecting rods 37 around the coronary axes, and after the cables of the driving devices 6 are released, the mandible platform 4 rapidly returns to the initial position under the elastic force action of the first springs 34, the second springs 311 and the return springs 5, so that the simulation of the incised and bitten actions during the chewing of human beings is completed;
when the two groups of driving devices 6 are asymmetrically retracted, the sliding block 33 of one group of flexible temporomandibular joints 3 slides forwards along the linear guide rod 32, the sliding block 33 of the other group of flexible temporomandibular joints 3 is tightly attached to the rear end of the sliding rail seat 31 along with the rotation of the connecting rod 37 in a three-dimensional space, after the driving devices 6 are retracted, the mandible moving platform 4 rapidly returns to the initial position under the elastic force action of the first spring 34, the second spring 311 and the return spring 5, and the grinding action simulation during the chewing of human beings is completed.
In this embodiment, the motor 61 is a servo motor of model MSMD022G1V, and a servo driver of model MADHT 1507.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.
Claims (8)
1. A simulated chew device having a flexible temporomandibular joint characterized by: the device comprises a rack (1), wherein a horizontally arranged upper jaw fixed platform (2) is arranged on the rack (1), a lower jaw movable platform (4) is arranged below the upper jaw fixed platform (2), the upper jaw fixed platform (2) is connected with the lower jaw movable platform (4) through two groups of flexible temporomandibular joints (3) and two groups of reset springs (5), the flexible temporomandibular joints (3) are vertically arranged and fixedly arranged at the middle rear part of the upper jaw fixed platform (2), the two groups of flexible temporomandibular joints (3) are transversely arranged side by side, the two groups of reset springs (5) are respectively positioned at two sides of the upper jaw fixed platform (2) and the lower jaw movable platform (4), the front ends at two sides of the lower jaw movable platform (4) are respectively in transmission connection with two driving devices (6) through flexible cables (67), and each driving device (6) is used for providing downward and forward driving forces for the lower jaw movable platform (4) at the same side, the two groups of flexible temporomandibular joints (3) provide rotary support for the movement of the mandible platform (4), and the two groups of return springs (5) are used for providing power for the return movement of the mandible platform (4).
2. The simulated chew device of claim 1 having a flexible temporomandibular joint wherein: frame (1) include base (11) and isolation platform (13), isolation platform (13) level be located the top of base (11), isolation platform (13) lower surface through a plurality of support columns (12) and base (11) fixed connection, the last fixed surface of isolation platform (13) install L shape hanger plate (14), L shape hanger plate (14) including the diaphragm of top level setting, maxillary platform (2) through the cooperation fixed mounting of bolt (15) and nut (16) at the lower surface of diaphragm.
3. The simulated chew device of claim 2 having a flexible temporomandibular joint wherein: two drive arrangement (6) set up respectively at the upper surface front end both sides edge of base (11), the output shaft and cable pulley (65) transmission of drive arrangement (6) be connected, cable pulley (65) and flexible cable (67) one end fixed connection, flexible cable (67) other end pass reverse pulley (7) and flexible cable connecting hole (41) fixed connection, reverse pulley (7) fixed mounting at the upper surface front end both sides edge of keeping apart platform (13), flexible cable connecting hole (41) fixed mounting at jaw movable platform (4) both sides wall front end down.
4. The simulated chew device of claim 3 having a flexible temporomandibular joint wherein: drive arrangement (6) include motor (61), the output shaft of motor (61) be connected with the input shaft transmission of reduction gear (62), the output shaft of reduction gear (62) pass through shaft coupling (64) and cable pulley (65) transmission connection, motor (61) and reduction gear (62) fixed mounting on motor cabinet (63), motor cabinet (63) and base (11) fixed connection, cable pulley (65) rotate with cable pulley seat (66) and be connected, cable pulley seat (66) and base (11) fixed connection.
5. The simulated chew device of claim 3 having a flexible temporomandibular joint wherein: the utility model discloses a fixed platform of upper jaw (2) rear side be provided with a plurality of screw (22), bolt (15) pass diaphragm and screw (22) at L shape hanger plate (14) top in proper order, cooperation nut (16) are used for deciding platform (2) fixed mounting at the lower surface of L shape hanger plate (14) top diaphragm with upper jaw, the equal fixed mounting of tail end of upper jaw decide platform (2) both sides wall have spring fixed orifices (21), the equal fixed mounting in middle part of lower jaw move platform (4) both sides wall have spring fixed orifices (21), spring fixed orifices (21) be used for the tip of fixed reset spring (5).
6. The simulated chew device of claim 3 having a flexible temporomandibular joint wherein: the upper jaw decides platform (2) rear side lower surface fixed mounting have two sets of slide rail seats (31), two sets of slide rail seats (31) between fixed mounting have straight line guide arm (32), the axial of straight line guide arm (32) be used for determining the seesaw direction of lower jaw moving platform (4), straight line guide arm (32) pass slider (33), slider (33) can freely slide along straight line guide arm (32) axial, straight line guide arm (32) on the nested first spring (34), first spring (34) one end be connected with slider (33), the other end is connected with slide rail seat (31) that is close to drive arrangement (6) one side, the lower surface fixed mounting of slider (33) have ball hinge seat (35), ball hinge seat (35) embedded bulb (36), bulb (36) lower extreme and connecting rod (37) fixed connection, the ball head (36) can rotate on the spherical hinge seat (35), a spring mounting piece (39) horizontally arranged is sleeved outside the connecting rod (37), the spring mounting piece (39) is nested on the connecting rod (37) and can axially slide along the connecting rod (37), a plurality of second springs (311) are mounted between the upper surface of the spring mounting piece (39) and the lower surface of the sliding block (33), the second springs (311) surround the connecting rod (37) and are uniformly distributed, and the bottom end of the connecting rod (37) is fixedly connected with the upper surface of the lower jaw moving platform (4).
7. The simulated chew device of claim 6 having a flexible temporomandibular joint wherein: the lower surface of the ball head (36) is fixedly provided with a limiting end cover (38), the inner surface of the limiting end cover (38) is provided with a limiting arc surface (312), and the limiting arc surface (312) is used for limiting the inclination angle of the connecting rod (37).
8. The simulated chew device of claim 6 having a flexible temporomandibular joint wherein: the fixed surface of spring mounting piece (39) install the spacing ring, but holding screw (310) pass the spacing ring and be connected with connecting rod (37) split in close contact with, holding screw (310) be used for spacing spring mounting piece (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920577702.4U CN209912322U (en) | 2019-04-25 | 2019-04-25 | Imitative chewing device with flexible temporomandibular joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920577702.4U CN209912322U (en) | 2019-04-25 | 2019-04-25 | Imitative chewing device with flexible temporomandibular joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209912322U true CN209912322U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920577702.4U Expired - Fee Related CN209912322U (en) | 2019-04-25 | 2019-04-25 | Imitative chewing device with flexible temporomandibular joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209912322U (en) |
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2019
- 2019-04-25 CN CN201920577702.4U patent/CN209912322U/en not_active Expired - Fee Related
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Granted publication date: 20200107 |