CN110360283A - A kind of transmission mechanism and finance device with the defencive function that crosses the border - Google Patents
A kind of transmission mechanism and finance device with the defencive function that crosses the border Download PDFInfo
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- CN110360283A CN110360283A CN201910711001.XA CN201910711001A CN110360283A CN 110360283 A CN110360283 A CN 110360283A CN 201910711001 A CN201910711001 A CN 201910711001A CN 110360283 A CN110360283 A CN 110360283A
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- gear
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- detection device
- boundary portion
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 49
- 238000001514 detection method Methods 0.000 claims abstract description 67
- 230000033001 locomotion Effects 0.000 claims abstract description 21
- 238000007689 inspection Methods 0.000 claims 2
- 238000000034 method Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 208000036829 Device dislocation Diseases 0.000 description 1
- 208000033748 Device issues Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of transmission mechanism and finance device with the defencive function that crosses the border, the drive mechanism include reciprocating rack gear, the gear for driving the rack gear to move back and forth and for preventing the gear from crossing the protection location of the rack gear；Wherein, the rack gear includes driving section and the boundary portion for being connected to the driving section end；The protection location includes mobile device and detection device, and the mobile device is at least partly Chong Die with the boundary portion of the rack gear and moves back and forth with the rack gear；The gear contacts while engagement with the boundary portion and drives the mobile device mobile, and the detection device is used for the mobile device for detecting with moving after the Gear Contact, to issue the triggering command for changing the gear movement state.A kind of transmission mechanism and finance device with the defencive function that crosses the border of the invention, it is intended to improve the safety and stability during rack pinion.
Description
Technical field
The present invention relates to drive apparatus fields, and in particular to a kind of transmission mechanism and finance with the defencive function that crosses the border is set
It is standby.
Background technique
In current financial module, this reciprocal transmission mode of rack-and-pinion is largely used, motor-driven gear is used
Rotation, gear & rack structure are converted to the reciprocating motion of reciprocation module.Existing rack gear scheme (linear type, arc), does not all have
There is end protection scheme, if drive control is improper, may cause two kinds of consequences: the stuck damage of 1. driving motors or reciprocal mould
Block structure damage or rack pinion play tooth damage.2. rack gear module overruns, cause gear that can not make tooth rotating backward
Module homing.
Summary of the invention
In order to overcome the deficiencies of the prior art, the present invention provides a kind of transmission mechanism with the defencive function that crosses the border and finance is set
It is standby, it is intended to improve the safety and stability during rack pinion.
The present invention provides a kind of transmission mechanism with the defencive function that crosses the border, including reciprocating rack gear, it is used for
Drive the gear of the rack gear reciprocating motion and for preventing the gear from crossing the protection location of the rack gear；Wherein, described
Rack gear includes driving section and the boundary portion for being connected to the driving section end；The protection location includes mobile device and detection dress
It sets, the mobile device is at least partly Chong Die with the boundary portion of the rack gear and moves back and forth with the rack gear；The tooth
Wheel contact while engagement with the boundary portion and drives the mobile device mobile, the detection device be used for detection with it is described
The mobile device moved after Gear Contact, to issue the triggering command for changing the gear movement state.
Preferably, the mobile device includes liftable component, and the liftable overlapped thereto is set to the boundary portion side
Portion, the detection device interval are set to the liftable component bottom and relatively fixed with the boundary portion；The liftable group
Part not only can with the boundary portion move back and forth again can the relatively described boundary portion under the driving of the gear towards the detection dress
Set movement；The detection device issues triggering command when detecting the liftable component.
Preferably, the mobile device further includes that overlapping is fixedly arranged on the shell of the boundary portion side and is set to the shell
Interior elastic component；The detection device is fixedly arranged on the intracorporal bottom position of the shell；The liftable inter-module is described every being set to
In the shell on detection device and can the relatively described shell under the contact driving of the gear towards detection dress
Set movement；Described elastic component one end connects the liftable component, and the other end connects the shell, and the elastic component is for pushing
The liftable component is far from the detection device.
Preferably, the rack gear is equipped with first gear teeth, and the gear is equipped with can be with the of first gear teeth meshing
Two gear teeth, the liftable component include the first lifting platform being disposed in the housing and are set to first lifting platform surface simultaneously
Can with the third gear teeth of second gear teeth meshing, in the Gear Contact and before driving the liftable component, described in part
The third gear teeth and first gear teeth in the boundary portion are opposite one by one.
Preferably, the detection device and the liftable component are diagonally positioned in the shell, and the detection
Device is located at the side close to the boundary portion of the shell, and described elastic component one end connects the close side of the shell
The side wall in portion, boundary, other end connect the outer wall of first lifting platform opposite with the side wall.
Preferably, the two sidewalls parallel with the rack movement direction of the shell, which are equipped with, is directed toward the detection device
Oblique guide groove, be respectively equipped with guide rod, the guide rod on the two sidewalls opposite with the oblique guide groove of first lifting platform
It is embedded on the oblique guide groove and is moved back and forth with the length direction of the oblique guide groove.
Preferably, the rack gear is equipped with first gear teeth, and the gear is equipped with can be with the of first gear teeth meshing
Two gear teeth, the liftable component include the second lifting platform being disposed in the housing, and the top surface of second lifting platform is higher by
The tooth root disc of first gear teeth, and the face towards the gear of second lifting platform is inclined-plane, the elastic component one
End connects the inner bottom surface of the shell, and other end connects the bottom surface of second lifting platform.
Preferably, the detection device is touch-switch, and the driven mobile device is by touching described touch out
It closes and the touch-switch is made to issue triggering command；Or the detection device is sensor, the sensor sensing is to being driven
The mobile device and issue triggering command.
Preferably, there are two the protection location is set, two protection locations are located at the rack gear both ends.
The present invention also provides a kind of finance devices, including the transmission mechanism with the defencive function that crosses the border described above.
Compared with prior art, the present invention in the transmission mechanism and finance device with the defencive function that crosses the border of the invention
Protection location effectively prevents and crosses rack gear end during sliding tooth wheel drive, avoids that driving motor is stuck, reciprocal module
Structural failure, rack pinion play the generation of the results such as tooth damage, ensure that the safety and stabilization during rack pinion
Property；Transmission mechanism structure of the invention simultaneously is simple, is convenient for control, is conducive to industrialized production.
Detailed description of the invention
Fig. 1 is the overlooking structure diagram for the transmission mechanism that the present invention illustratively has the defencive function that crosses the border；
Fig. 2 is the structural schematic diagram of the transmission mechanism with the defencive function that crosses the border of the embodiment of the present invention 1；
Fig. 3 is the structural schematic diagram of the transmission mechanism with the defencive function that crosses the border of the embodiment of the present invention 2；
Fig. 4 is the structural schematic diagram of the transmission mechanism with the defencive function that crosses the border of the embodiment of the present invention 3.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention is retouched in detail
It states, it is clear that described embodiment is only a part of example of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art's every other embodiment obtained without making creative work,
Belong to the scope of the present invention.
Fig. 1 is a kind of illustrative overlooking structure diagram of the transmission mechanism with the defencive function that crosses the border of the present invention.
Shown in referring to Fig.1, a kind of illustrative transmission mechanism with the defencive function that crosses the border of the present invention, including reciprocally transport
Dynamic rack gear 1, the gear 2 moved back and forth for drive rack 1 and the protection location 3 for preventing gear 2 from crossing rack gear 1.Its
In, it should be noted that the present invention is to the setting quantity of protection location 3 and is not specifically limited, for example, protection location 3 can root
According to actual needs in the unilateral setting of rack gear 1.Preferably, there are two protection location 3 is set, two protection locations 3 are located at rack gear 1
Both ends.
Wherein, rack gear 1 includes driving section 11 and the boundary portion 12 for being connected to 11 end of driving section, and rack gear 1 is equipped with first
Gear teeth a, the first gear teeth a are present on driving section 11, also exist simultaneously in boundary portion 12, and on driving section 11 and boundary portion 12
The first gear teeth a it is continuously uninterrupted.
Gear 2 is equipped with the second gear teeth b that can be engaged with the first gear teeth a on rack gear 1, and gear 2 rotates, on gear 2
Second gear teeth b is engaged with the first gear teeth a on rack gear 1, to move with carry-over bar 1, realizes the reciprocating motion of rack gear 1.
Protection location 3 includes mobile device 31 and detection device 32, boundary portion of the mobile device 31 at least partly with rack gear 1
12 are overlapped and can move back and forth with rack gear 1, meanwhile, also with respect to rack gear 1 relative motion can occur for mobile device 31.Mobile device 31
It is examined with overlapping for boundary portion 12 so that gear 2 contacts while engagement with boundary portion 12 and drives mobile device 31 mobile
After survey device 32 detects mobile device 31, triggering command is issued, gear 2 changes motion state, this fortune according to triggering command
The change of dynamic state prevents gear 2 to cross the boundary of rack gear 1, ensure that the safety and stability of transmission.Wherein, gear 2
The change of motion state can be gear 2 and stop operating, can also be the stopping of gear 2 and continue to rotate in same direction and become reversely turning
Dynamic, also or gear 2 first slows down and stops again, and the purpose reached is the boundary for preventing gear 2 from crossing rack gear 1.
In addition it should be noted that, while due to that need to guarantee that gear 2 engages in normal rotation process with boundary portion 12
It contacts and drives the mobile device 31 Chong Die with boundary portion 12, therefore, above-mentioned overlapping refers to the weight in the plane of rotation of gear 2
It is folded, and not superposition up and down.
As a kind of embodiment of above-mentioned detection device 32, detection device 32 is touch-switch, by the shifting of contact driving
Dynamic device 31 makes touch-switch issue triggering command and touching touch-switch.Another middle embodiment party as detection device 32
Formula, detection device 32 can be sensor, and sensor sensing issues triggering command to by the mobile device 31 of contact driving.It should
Understand, detection device 32 is not limited to above-mentioned, and further, the setting position of detection device 32 can be set according to actual needs
It sets, as long as detection device 32 is detectable to know driven mobile device 31.
Embodiment 1
Based on the above-mentioned transmission mechanism with the defencive function that crosses the border including rack gear 1, gear 2 and protection location 3, this reality
It applies example and proposes a kind of specific embodiment.
Fig. 2 is the structural schematic diagram of the transmission mechanism with the defencive function that crosses the border of the present embodiment.
Referring to figs. 1 and 2, the transmission mechanism with the defencive function that crosses the border of the present embodiment includes rack gear 1, gear 2
And protection location 3.Wherein, protection location 3 includes mobile device 31 and detection device 32.
Specifically, mobile device 31 includes shell 312 and liftable component 311 and elastic component in shell 312
313.The overlapping of shell 312 is fixedly arranged on 12 side of boundary portion, then shell 312 and boundary portion 12 are relatively fixed, and shell 312 can lagging edge
Portion, boundary 12 moves back and forth.Detection device 32 is fixedly arranged on the side bottom position of the close boundary portion 12 in shell 312.
The interval of liftable component 311 is set in the shell 312 on detection device 32, and detection device 32 and liftable group
Part 311 is diagonally positioned in shell 312.Specifically, liftable component 311 includes the first lifting platform in shell 312
3111 and set on 3111 surface of the first lifting platform and the third gear teeth c that can be engaged with the second gear teeth b of gear 2.Wherein, in order to protect
Effective the engaging for demonstrate,proving its second gear teeth b and the third gear c of liftable component 311 in 2 rotation process of gear is contacted in gear 2
Before driving liftable component 311, part third gear teeth c and the first gear teeth a in boundary portion 12 are opposite one by one, and which makes tooth
The second gear teeth b on wheel 2 is engaged while initially engagement with the first gear teeth a with third gear teeth c, without colliding.Into one
Step is in order to guarantee the safety and stability in engagement process, it is preferred that the top surface of third gear teeth c is slightly less than the first gear teeth a's
Top surface, or flushed with the top surface of the first gear teeth a, so that avoiding occurring with the second gear teeth b engagement process on gear 2
Collision, while ensure that and can contact simultaneously.Certainly, if further for the second gear teeth b on 2 rotation process middle gear 2 of gear
In the contact process of third gear teeth c, biggish relative motion occurs for liftable component 311, then can make the tooth root of third gear teeth c
Face is higher by the root face of the first gear teeth a, in this way, the second gear teeth b and the first gear teeth a and third gear teeth c of gear 2 engage it is same
When, 311 1 downward thrusts of liftable component can be given, so that relatively large displacement can occur for liftable component 311, more just
In detection.Certainly, above-mentioned is only preferable embodiment, the setting of each gear teeth can be arranged as the case may be, not office
It is limited to above-mentioned.
(side wall refers to the right side of shell 312 in Fig. 2 to the side wall of the close boundary portion 12 of 313 one end of elastic component connection shell 312
Wall), (outer wall refers to the first lifting platform 3111 in Fig. 2 to the outer wall of other end connection the first lifting platform 3111 opposite with side wall
Right side wall).When gear 2 is not in contact with driving liftable component 311, elastic component 313 pushes liftable component 311 far from detection dress
32 are set, is resisted against one end of the separate boundary portion 12 of liftable component 311 on the inner wall of shell 312.Illustratively, elastic component
313 be spring.When gear 2 is not in contact with driving liftable component 311, elastic component 313 is in compressive state, and elastic component 311 squeezes
Pressure liftable component 311 makes it be directed away from the movement of the side of detection device 32, makes the separate boundary portion 12 of liftable component 311
One side wall and shell 312 separate boundary portion 12 inner wall against.Which is on the one hand in gear 2 not in contact with driving liftable
When component 311, certain fixation can be carried out to liftable component 311, on the other hand, contact driving liftable component in gear 2
During 311, the certain resistance of the mobile generation to liftable component 311, thus further can be to driving liftable component
The driving of 311 gear 2 generates certain resistance, and with the lasting driving of gear 2, the elasticity of elastic component 313 is stronger, then resistance
Bigger, bigger resistance is bigger to the deboost of gear 2, is more conducive to prevent gear 2 from crossing the boundary of rack gear 1, greatly improve
Protecting effect.
Further, in order to guarantee the stability in 311 moving process of liftable component, shell 312 is moved with rack gear 1
The parallel two sidewalls in direction be equipped with direct detection device 32 oblique guide groove 3121, the first lifting platform 3111 with oblique guide groove
Guide rod 3112 is respectively equipped on 3121 opposite two sidewalls, guide rod 3112 is embedded on oblique guide groove 3121 with oblique guide groove 3121
Length direction move back and forth.As an implementation, for the convenience in technique manufacturing process, oblique guide groove 3121 is
The oblique through-hole of two be formed in the two opposite side walls of shell 312, the two-phase on the first lifting platform 3111 of liftable component 311
Guide rod 3112 is embedded on corresponding through-hole respectively, so that liftable component 311 is slidably connected with shell 312, and in liftable
Component 311 diagonally through-hole close to or far from detection device 32.
The transmission mechanism course of work with the defencive function that crosses the border based on the present embodiment are as follows: the transmission of gear 2 and rack gear 1
11 engaged transmission of portion, shell 312 are moved with respect to 1 fixed random rack gear 1 of rack gear, make its boundary portion 12 and gear 2 when rack gear 1 moves to
When engagement, gear 2 contacts engagement with the third gear teeth c on liftable component 311 simultaneously, and driving liftable component 311 is diagonally
3121 detecting direction 32 of guide groove is mobile, and when detection device 32 detects liftable component 311, detection device 32 issues touching
Send instructions, gear 2 changes motion state according to triggering command, so that gear 2 be avoided to cross the boundary of rack gear 1.When gear 2 drives
When being detached from the engagement of the contact with third gear teeth c, elastic component 313 pushes liftable component 311 to lead liftable component 311 diagonally
The side that slot 3121 is directed away from detection device 32 is mobile, liftable component 311 return to shell 312 against initial position.
Embodiment 2
Based on the above-mentioned transmission mechanism with the defencive function that crosses the border including rack gear 1, gear 2 and protection location 3, this reality
It applies example and proposes another specific embodiment.
Fig. 3 is the structural schematic diagram of the transmission mechanism with the defencive function that crosses the border of the present embodiment.
In conjunction with shown in Fig. 1 and Fig. 3, the transmission mechanism with the defencive function that crosses the border of the present embodiment includes rack gear 1, gear 2
And protection location 3.Wherein, protection location 3 includes mobile device 31 and detection device 32.
Specifically, mobile device 31 includes shell 312 and liftable component 311 and elastic component in shell 312
313.The overlapping of shell 312 is fixedly arranged on 12 side of boundary portion, and shell 312 and boundary portion 12 are relatively fixed, and shell 312 can be with boundary portion
12 move back and forth.Detection device 32 is fixedly arranged on the bottom position in shell 312, it is preferable that installs close to 312 interposition of shell
It sets.
The interval of liftable component 311 is set in the shell 312 on detection device 32, and detection device 32 and liftable group
Part 311 is in be oppositely arranged in shell 312 up and down.Specifically, liftable component 311 includes first liter in shell 312
Drop platform 3111 and set on 3111 surface of the first lifting platform and the third gear teeth c that can be engaged with the second gear teeth b.Wherein, in order to guarantee
With effective the engaging of the third gear c of liftable component 311 in 2 rotation process of gear, driving liftable component is contacted in gear 2
Before 311, part third gear teeth c and the first gear teeth a in boundary portion 12 are opposite one by one, and which makes second on gear 2 to take turns
It is engaged while tooth b is initially engaged with the first gear teeth a with third gear teeth c, without colliding.It is engaged further for guarantee
Safety and stability in the process, it is preferred that the top surface of third gear teeth c is slightly less than the top surface of the first gear teeth a, or with first
The top surface of gear teeth a flushes, so that avoiding colliding, ensure that simultaneously with the second gear teeth b engagement process on gear 2
It can contact simultaneously.Certainly, if connecing further for the second gear teeth b and third gear teeth c on 2 rotation process middle gear 2 of gear
During touching, biggish relative motion occurs for liftable component 311, then the root face of third gear teeth c can be made to be higher by the first gear teeth a
Root face, in this way, liftable component can be given while the second gear teeth b and the first gear teeth a and third gear teeth c of gear 2 are engaged
311 1 downward thrusts are more convenient for detecting so that relatively large displacement can occur for liftable component 311.Certainly, above-mentioned
It is only preferable embodiment, the setting of a gear teeth can be arranged as the case may be, it is not limited to above-mentioned.
313 one end of elastic component connects the bottom wall of shell 312, and other end connects first opposite with the bottom wall of shell 312
The bottom wall of lifting platform 3111.When gear 2 is not in contact with driving liftable component 311, elastic component 313 pushes liftable component 311
Far from detection device 32.Illustratively, elastic component 313 is spring.In the initial state, i.e. gear 2 is not in contact with driving liftable
When component 311, the spring of the present embodiment is in nature elongation state.
The transmission mechanism course of work with the defencive function that crosses the border based on the present embodiment are as follows: the transmission of gear 2 and rack gear 1
11 engaged transmission of portion, shell 312 is fixed with respect to rack gear 1 and moves with rack gear 1, makes its boundary portion 12 and tooth when rack gear 1 moves to
When 2 engagement of wheel, gear 2 contacts engagement with the third gear teeth c on liftable component 311 simultaneously, drives 311 direction of liftable component
The detection device 32 of bottom is mobile, and when detection device 32 detects liftable component 311, detection device 32 issues triggering and refers to
It enables, gear 2 changes motion state according to triggering command, so that gear 2 be avoided to cross the boundary of rack gear 1.It is detached from when gear 2 drives
When the contact with third gear teeth c is engaged, elastic component 313 pushes liftable component 311 that liftable component 311 is made to be directed away from detection
The side of device 32 is mobile, and liftable component 311 is made to return to initial position.
Embodiment 3
Based on the above-mentioned transmission mechanism with the defencive function that crosses the border including rack gear 1, gear 2 and protection location 3, this reality
It applies example and proposes another specific embodiment.
Fig. 4 is the structural schematic diagram of the transmission mechanism with the defencive function that crosses the border of the present embodiment.
In conjunction with shown in Fig. 1 and Fig. 4, the transmission mechanism with the defencive function that crosses the border of the present embodiment includes rack gear 1, gear 2
And protection location 3.Wherein, protection location 3 includes mobile device 31 and detection device 32.
Specifically, mobile device 31 includes shell 312 and liftable component 311 and elastic component in shell 312
313.The overlapping of shell 312 is fixedly arranged on 12 side of boundary portion, and shell 312 and boundary portion 12 are relatively fixed, and shell 312 can be with boundary portion
12 move back and forth.Detection device 32 is fixedly arranged on the bottom position in shell 312, it is preferable that installs close to 312 interposition of shell
It sets.
The interval of liftable component 311 is set in the shell 312 on detection device 32, and detection device 32 and liftable group
Part 311 is in be oppositely arranged in shell 312 up and down.Specifically, liftable component 311 includes second liter in shell 312
Platform 3112 drops, and the top surface of the second lifting platform 3112 is higher by the tooth root disc of the first gear teeth a, if height h1 is higher by height h2 in Fig. 4,
The setting ensure that gear 2 in the engagement process of the first gear teeth a on rack gear 1, can be with the table of the second lifting platform 3112
Face contact simultaneously generates downward thrust to the second lifting platform 3112, and the second lifting platform 3112 of driving moves down.Meanwhile in order to guarantee tooth
Wheel 2 and the initial contact of the second lifting platform 3112 do not collide, and are transferred to 3112 surface of the second lifting platform conducive to gear 2, and second
The face towards gear 2 of lifting platform 3112 is inclined-plane m.
313 one end of elastic component connects the bottom wall of shell 312, and other end connects second opposite with the bottom wall of shell 312
The bottom wall of lifting platform 3112.When gear 2 is not in contact with driving liftable component 311, elastic component 313 pushes liftable component 311
Far from detection device 32.Illustratively, elastic component 313 is spring.In the initial state, i.e. gear 2 is not in contact with driving liftable
When component 311, the spring of the present embodiment is in nature elongation state.
The transmission mechanism course of work with the defencive function that crosses the border based on the present embodiment are as follows: the transmission of gear 2 and rack gear 1
11 engaged transmission of portion, shell 312 is fixed with respect to rack gear 1 and moves with rack gear 1, makes its boundary portion 12 and tooth when rack gear 1 moves to
When 2 engagement of wheel, gear 2 is contacted with the inclined-plane m of the second lifting platform 3112 simultaneously, and is transferred to by inclined-plane m to second and is gone up and down
The contact of 3112 top surface of platform, the top of the tooth root disc of the first gear teeth a on rack gear 1 is higher by due to the top surface of the second lifting platform 3112
Face, then the detection device 32 that gear 2 squeezes driving liftable component 311 towards bottom is mobile, when detection device 32 detects can
When lifting assembly 311, detection device 32 issues triggering command, and gear 2 changes motion state according to triggering command, to avoid tooth
Wheel 2 crosses the boundary of rack gear 1.When the driving of gear 2 is detached from the contact of the second lifting platform 3112, the promotion of elastic component 313 can be risen
The side that part 311 of coming down to a lower group makes liftable component 311 be directed away from detection device 32 is mobile, returns to liftable component 311 initially
Position.
Based on the above-mentioned transmission mechanism with the defencive function that crosses the border, the present invention also provides a kind of including tool described above
There is the finance device of the transmission mechanism for the defencive function that crosses the border.
It is of the invention have cross the border the transmission mechanism of defencive function and the protection location in finance device effectively prevents drive
Rack gear end is crossed during movable tooth wheel drive, avoids stuck driving motor, reciprocal modular structure damage, rack pinion beat tooth
The generation of the results such as damage, ensure that the safety and stability during rack pinion；Driver of the invention simultaneously
Structure structure is simple, is convenient for control, is conducive to industrialized production.
Although the present invention has shown and described referring to specific embodiment, it should be understood by those skilled in the art that:
In the case where not departing from the spirit and scope of the present invention being defined by the claims and their equivalents, can carry out herein form and
Various change in details.
Claims (10)
1. a kind of transmission mechanism with the defencive function that crosses the border, which is characterized in that including reciprocating rack gear (1), be used for
Drive the gear (2) of the rack gear (1) reciprocating motion and for preventing the gear (2) from crossing the protection list of the rack gear (1)
First (3)；Wherein, the rack gear (1) includes driving section (11) and the boundary portion (12) for being connected to the driving section (11) end；Institute
Stating protection location (3) includes mobile device (31) and detection device (32), the mobile device (31) at least partly with the tooth
The boundary portion (12) of item (1) is overlapped and moves back and forth with the rack gear (1)；The gear (2) and the boundary portion (12)
It is contacted while engagement and drives the mobile device (31) mobile, the detection device (32) is for detecting and the gear
(2) mobile device (31) moved after contacting, to issue the triggering command for changing gear (2) motion state.
2. the transmission mechanism with the defencive function that crosses the border according to claim 1, which is characterized in that the mobile device
It (31) include liftable component (311), liftable component (311) overlapping is set to the boundary portion (12) side, the inspection
It surveys device (32) interval and is set to liftable component (311) bottom and relatively fixed with the boundary portion (12)；It is described to rise
Come down to a lower group part (311) not only can with the boundary portion (12) move back and forth but also can the relatively described boundary portion (12) in the gear (2)
It is mobile towards the detection device (32) under driving；The detection device (32) is sent out when detecting liftable component (311)
Triggering command out.
3. the transmission mechanism with the defencive function that crosses the border according to claim 2, which is characterized in that the mobile device
It (31) further include the elasticity for being overlapped the shell (312) for being fixedly arranged on the boundary portion (12) side and being set in the shell (312)
Part (313)；The detection device (32) is fixedly arranged on the bottom position in the shell (312)；Between the liftable component (311)
Every be set to the detection device (32) on the shell (312) in and can the relatively described shell (312) in the gear
(2) mobile towards the detection device (32) under contact driving；Described elastic component (313) one end connects the liftable component
(311), the other end connects the shell (312), and the elastic component (313) is for pushing the liftable component (311) separate
The detection device (32).
4. the transmission mechanism with the defencive function that crosses the border according to claim 3, which is characterized in that on the rack gear (1)
Equipped with first gear teeth (a), the gear (2) is equipped with second gear teeth (b) that can engage with first gear teeth (a), it is described can
Lifting assembly (311) includes the first lifting platform (3111) in the shell (312) and is set to first lifting platform
(3111) surface and the third gear teeth (c) that can be engaged with second gear teeth (b) are contacted and are driven described in the gear (2)
Before liftable component (311), first gear teeth (a) on the part third gear teeth (c) and the boundary portion (12) are one by one
Relatively.
5. the transmission mechanism with the defencive function that crosses the border according to claim 4, which is characterized in that the detection device
(32) diagonally positioned in the shell (312) with the liftable component (311), and the detection device (32) is located at institute
The side close to the boundary portion (12) of shell (312) is stated, described elastic component (313) one end connects the shell (312)
Side wall close to the boundary portion (12), other end connect the outer of first lifting platform (3111) opposite with the side wall
Wall.
6. the transmission mechanism with the defencive function that crosses the border according to claim 5, which is characterized in that the shell (312)
The two sidewalls parallel with the rack gear (1) direction of motion be equipped with the oblique guide groove for being directed toward the detection device (32)
(3121), guide rod is respectively equipped on the two sidewalls opposite with the oblique guide groove (3121) of first lifting platform (3111)
(3112), the guide rod (3112) is embedded on the oblique guide groove (3121) with the length direction of the oblique guide groove (3121)
It moves back and forth.
7. the transmission mechanism with the defencive function that crosses the border according to claim 3, which is characterized in that on the rack gear (1)
Equipped with first gear teeth (a), the gear (2) is equipped with second gear teeth (b) that can engage with first gear teeth (a), it is described can
Lifting assembly (311) includes the second lifting platform (3112) in the shell (312), second lifting platform (3112)
Top surface is higher by the tooth root disc of first gear teeth (a), and the face towards the gear (2) of second lifting platform (3112)
For inclined-plane, described elastic component (313) one end connects the inner bottom surface of the shell (312), other end connection second lifting
The bottom surface of platform (3112).
8. any transmission mechanism with the defencive function that crosses the border according to claim 1~7, which is characterized in that the inspection
Surveying device (32) is touch-switch, and the driven mobile device (31) makes described touch and touching the touch-switch
Switch issues triggering command；Or the detection device (32) is sensor, the sensor sensing to the driven movement
Device (31) and issue triggering command.
9. any transmission mechanism with the defencive function that crosses the border according to claim 1~7, which is characterized in that the guarantor
There are two shield unit (3) is set, two protection locations (3) are located at the rack gear (1) both ends.
10. a kind of finance device, which is characterized in that there is the defencive function that crosses the border including as described in any one of claims 1 to 9
Transmission mechanism.
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| CN201910711001.XA CN110360283A (en) | 2019-08-02 | 2019-08-02 | A kind of transmission mechanism and finance device with the defencive function that crosses the border |
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| CN201910711001.XA CN110360283A (en) | 2019-08-02 | 2019-08-02 | A kind of transmission mechanism and finance device with the defencive function that crosses the border |
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