CN218919478U - AGV charging machine brush piece telescopic machanism - Google Patents

Abstract

The application discloses AGV charging machine brush piece telescopic machanism, it includes the supporting disk, the activity sets up brush piece subassembly and be used for the drive that the brush piece subassembly is flexible in supporting disk one side, the supporting disk is close to one side rigid coupling of drive mechanism has two pterygoid lamina that are parallel arrangement, the supporting disk with two the pterygoid lamina encloses jointly and is used for holding drive mechanism's movable chamber; one side of the supporting disc, which is far away from the driving mechanism, is provided with a drag chain for accommodating a cable electrically connected with the electric brush block assembly. The electric brush block telescopic mechanism has the effect of avoiding potential safety hazards caused by easy winding when the electric cable connected with the electric brush block telescopic mechanism of the charger stretches along with the electric brush block.

Description

AGV charging machine brush piece telescopic machanism

Technical Field

The application relates to AGV field of charging especially relates to an AGV charging machine brush piece telescopic machanism.

Background

An AGV, commonly referred to as an AGV carriage, is a transport vehicle equipped with an automatic navigation device such as electromagnetic or optical devices, capable of traveling along a predetermined navigation path, and having safety protection and various transfer functions. The AGV trolley is characterized in that in industrial application, a driver is not needed, a rechargeable storage battery is used as a power source, and the traveling path and the behavior of the AGV trolley can be controlled through a computer.

AGV charges the charging device that the machine is the AGV dolly, and the AGV dolly removes to the department that charges under the control of computer, and makes the charging connector of AGV dolly and stretches out the brush piece butt joint that AGV charges the machine shell, can charge.

With respect to the related art in the above, the inventors consider that there are the following drawbacks: with the continuous development of batteries and quick charging technologies, higher requirements are put forward on the charging power of a charger, the charging current of the charger is obviously improved on the premise of limiting the charging voltage, brush blocks of an AGV trolley in the related technologies are mostly of telescopic design, the brush blocks extend out of the shell of the charger when the trolley is charged, and the brush blocks are retracted into the shell of the charger when the trolley is not charged; in the extending process, the electric cable connected with the electric brush block and the driving mechanism for driving the electric brush block to stretch out and draw back along with the electric brush block, the electric cable is difficult to return to the original position along with the electric brush block in the retracting process of the electric brush block, and is easy to wind inside the charger, and under the condition of overhigh charging current, the wound electric cable inside the charger can cause short circuit to cause safety accidents, and certain potential safety hazards exist.

Disclosure of Invention

In order to avoid the potential safety hazard that the cable that charges quick-witted brush piece telescopic machanism connects twines easily when following the brush piece and stretch out and draw back, this application provides a AGV charging machine brush piece telescopic machanism.

The application provides a pair of AGV charging machine brush piece telescopic machanism adopts following technical scheme:

the brush block telescopic mechanism of the AGV charging machine comprises a supporting disc, a brush block assembly movably arranged on one side of the supporting disc and a driving mechanism for driving the brush block assembly to stretch out and draw back, wherein two wing plates which are arranged in parallel are fixedly connected on one side, close to the driving mechanism, of the supporting disc, and the supporting disc and the two wing plates are jointly enclosed to form a movable cavity for accommodating the driving mechanism; one side of the supporting disc, which is far away from the driving mechanism, is provided with a drag chain for accommodating a cable electrically connected with the electric brush block assembly.

By adopting the technical scheme, the supporting disc and the wing plates are surrounded on one side of the supporting disc to form a first movable cavity capable of accommodating the driving mechanism, and a second movable cavity capable of being used for arranging cables is formed on the other side of the supporting disc, so that layered arrangement of the cables for electrically connecting the driving mechanism and the electric brush block assembly is realized; the cable is received inside the tow chain, does not take place relative slip as far as possible between cable and the cable and between cable and the tow chain, has reduced the possibility that the cable twines, and then has reduced the probability that potential safety hazards such as short circuit appear in AGV charging machine brush piece telescopic machanism.

Optionally, the brush piece subassembly is in including setting up the mounting panel of supporting disk perpendicular to ground one side, erect the mounting panel is kept away from the frame of supporting disk one side, the mounting panel is kept away from one side of supporting disk is provided with the roof, be provided with two brush pieces of being connected with the power on the roof.

Through adopting above-mentioned technical scheme, when the AGV dolly charges, the AGV dolly dock the front of brush piece, and the frame can play the protection to stretching out the outer brush piece side of AGV machine shell that charges, avoids other article as far as possible and the brush piece contact that has linked together the power to lead to appearing the potential safety hazard or influence the charging of AGV dolly.

Optionally, a plurality of connecting rods used for connecting the top plate are further arranged in the frame on the mounting plate, one end of each connecting rod is connected with the mounting plate, the other end of each connecting rod is connected with the top plate, and elastic pieces located between the top plate and the mounting plate are sleeved on the connecting rods.

Through adopting above-mentioned technical scheme, when AGV dolly charges, make brush piece and AGV dolly elasticity butt through the connecting rod that the cover was equipped with the elastic component, can make the conflict of brush piece and AGV dolly inseparabler, prevent as far as possible that brush piece and AGV dolly from contacting failure from leading to the short circuit.

Optionally, a micro switch is further arranged in the frame on the mounting plate, the micro switch is connected with a first controller, and the first controller is electrically connected with a circuit of the electric brush block connected with a power supply.

Through adopting above-mentioned technical scheme, when the AGV dolly charges, the AGV dolly has certain pressure to the brush piece, and the brush piece then produces a less pressure to micro-gap switch, after micro-gap switch atress, the circuit through first controller control brush piece switches on the power, charges the AGV dolly; when no AGV dolly charges, the brush piece subassembly income AGV charges built-in portion, and micro-gap switch and brush piece contactless consequently not atress, micro-gap switch make the circuit that the brush piece connected the power be in the state that is not connected with the power this moment, make the brush piece not be in the state of being connected with the power for a long time, slow down the ageing speed of brush piece and reduce the risk of AGV charges built-in portion short circuit to a certain extent, reduced the potential safety hazard.

Optionally, the actuating mechanism is including setting up the sharp driving piece of supporting disk one side, be used for keeping the flexible steady guide component of mounting panel and be used for right the loose end of sharp driving piece carries out the response subassembly of location, the loose end of sharp driving piece with the mounting panel rigid coupling.

Through adopting above-mentioned technical scheme, when AGV dolly charges, straight line driving piece drive mounting panel and then drive the brush piece and stretch out AGV machine shell along its flexible direction, and the AGV dolly charges and after ending, straight line moves piece drive mounting panel and then drives the brush piece and withdraw AGV machine shell along its flexible direction. The guiding component can enable the extension and retraction of the mounting plate to be stable, and then the extension and retraction of the electric brush block are stable, and the sensing component can sense the start and end positions of the movable end of the linear driving piece, so that the electric brush block and the AGV trolley or the mounting plate and the supporting plate are prevented from being impacted as much as possible in the extension and retraction process of the electric brush block component.

Optionally, the direction subassembly includes following the flexible direction of brush piece sets up two optical axis guide rails on the supporting disk, two optical axis guide rails rigid coupling respectively is in two opposite sides on the mounting panel, the supporting disk is last to be close to the one end of mounting panel still rigid coupling has the cover to establish the outside supporting seat of optical axis guide rail.

Through adopting above-mentioned technical scheme, the straight line driving piece is when promoting the mounting panel, can make the mounting panel along straight line driving piece axial as far as possible through two optical axis guide rails that the symmetry set up, and the flexible direction steady removal of brush piece just does not produce the displacement promptly, makes the contact between brush piece subassembly and the AGV dolly charging connection inseparabler, and the brush piece after making stretching out is in the position that suitable AGV dolly charges, and the difficult short circuit phenomenon that takes place leads to appearing the potential safety hazard.

Optionally, the induction component comprises a first proximity switch and a second proximity switch which are arranged on the supporting disc, wherein the first proximity switch and the second proximity switch are electrically connected with a second controller, and the second controller is electrically connected with the linear driving piece; one of them the optical axis guide rail is kept away from the one end of mounting panel is provided with the induction plate, works as the induction plate with when first proximity switch contradicts, the brush piece is received in AGV machine shell that charges, works as the induction plate with when the second proximity switch contradicts, the brush piece just stretches out to the position that is fit for charging.

Through adopting above-mentioned technical scheme, when the straight line driving piece drive mounting panel stretches out, the optical axis guide rail moves to the direction of stretching out of brush piece along with the straight line driving piece, and when the induction plate touches with the second proximity switch, the brush piece stretches out and is in the position that is fit for AGV dolly to charge, and the second proximity switch transmits the position of straight line driving piece to the second controller this moment, and the second controller controls straight line driving piece free end to stop moving, and the brush piece stops in the position that is fit for AGV dolly to charge; when the linear driving piece drives the mounting plate to retract, the optical axis guide rail moves along with the linear driving piece to the retracting direction of the brush block, when the induction plate touches the first proximity switch, the brush block is retracted inside the AGV charger, at the moment, the first proximity switch transmits the position of the linear driving piece to the second controller, the second controller controls the free end of the linear driving piece to stop moving, the brush block stops in the AGV charger and the collision between the mounting plate and the supporting plate in the retracting process of the brush block assembly can be avoided as much as possible, and the probability of short-circuit accidents is reduced to a certain extent.

Optionally, a protective cover for shielding a gap between the mounting plate and the supporting plate is arranged on the mounting plate.

Through adopting above-mentioned technical scheme, the safety cover that sets up on the mounting panel can stretch out along with the mounting panel, can shield the clearance that produces between mounting panel and the supporting disk in the in-process that the brush piece stretched out AGV machine shell that charges.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the movable cavity which is formed by the support disc and the wing plate and can accommodate the driving mechanism and the movable cavity which is formed by the other side of the support disc and can be used for arranging the cables is formed by the support disc and the wing plate on one side of the support disc, so that layered arrangement of the cables which are electrically connected with the driving mechanism and the brush block assembly is realized, further, the cables are bundled in the drag chain, the cables and the cables are prevented from sliding relatively as far as possible, the possibility of winding the cables is reduced, and the probability of potential safety hazards such as short circuit and the like of the brush block telescopic mechanism of the AGV charging machine is further reduced;

2. the electric brush block is communicated with the power supply only when the AGV trolley is in butt joint in-place charging through the microswitch, so that the electric brush block is prevented from being in a state communicated with the power supply for a long time as far as possible, the ageing speed of the electric brush block is slowed down to a certain extent, the risk of short circuit of an AGV charger is reduced, and the potential safety hazard is further reduced;

3. through the cooperation of being connected of induction plate, first proximity switch, second proximity switch and second controller, make the brush piece stop in the position of suitable AGV dolly by the in-process that linear drive piece driven stretched out, avoid the brush piece subassembly to withdraw the collision of in-process mounting panel and supporting disk as far as possible, reduce the probability of short circuit accident emergence to a certain extent.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present application.

Fig. 2 is a schematic structural diagram mainly used for showing a drag chain in the embodiment of the present application.

Fig. 3 is an exploded schematic view of an embodiment of the present application for showing a brush block assembly.

Fig. 4 is a schematic structural view of a driving mechanism according to an embodiment of the present application.

Reference numerals: 11. a support plate; 12. a wing plate; 13. a support backing plate; 21. a drag chain; 22. a protective plate; 31. a mounting plate; 32. a frame; 33. a top plate; 34. a brush block; 35. a connecting rod; 36. an elastic member; 37. a micro-switch; 41. a linear driving member; 421. an optical axis guide rail; 422. a support base; 431. a first proximity switch; 432. a second proximity switch; 433. an induction plate; 5. and a protective cover.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses AGV charging machine brush piece telescopic machanism. Referring to fig. 1 and 4, an AGV charging machine brush block telescoping mechanism includes a support disc 11, a brush block assembly movably disposed at one side of the support disc 11, and a driving mechanism for driving the brush block assembly to telescope, wherein two parallel wing plates 12 are fixedly connected to one side of the support disc 11 close to the driving mechanism, a support pad 13 for facilitating installation of the application is fixedly connected to one side of the wing plates 12 close to the ground, and the support disc 11 and the two wing plates 12 enclose a first movable cavity for accommodating the driving mechanism; the side of the supporting disk 11 far away from the driving mechanism is provided with a drag chain 21 for accommodating a cable electrically connected with the brush block assembly of the brush block assembly, and a protective plate 22 for preventing the drag chain 21 from sliding down is fixedly connected on the upper edge of the supporting disk 11 far away from the three-side edge of the mounting plate 31.

Specifically, referring to fig. 2, the brush block assembly includes a mounting plate 31 movably connected to one side of the supporting plate 11 perpendicular to the ground and two brush blocks 34 disposed on one side of the mounting plate 31 away from the supporting plate 11, the supporting plate 11 is connected to the middle of the mounting plate 31, at this time, one side of the supporting plate 11 is a first movable cavity for accommodating a driving mechanism, a second movable cavity for arranging a cable is formed on the opposite side of the driving mechanism, the driving mechanism can be disposed on one side of the supporting plate 11 close to the ground and one side of the supporting plate 11 far away from the ground, in the embodiment of the present application, the driving mechanism is disposed on one side of the supporting plate 11 close to the ground, so that the supporting plate 11 can directly support the drag chain 21 disposed on the opposite side of the driving mechanism, and an additional supporting base plate for mounting the drag chain 21 is not required, thereby simplifying the structure of the present application to a certain extent.

When the AGV trolley needs to be charged, the AGV trolley runs to be stopped after being butted with the brush block 34 extending out of the AGV charging motor shell, then charging is started, and certain speed is still maintained when the AGV trolley is butted with the brush block 34, so that certain impact is generated on the brush block 34. In order to reduce the impact force as much as possible, referring to fig. 3, the brush block assembly further includes a frame 32 erected on a side of the mounting plate 31 away from the supporting plate 11 and a top plate 33 disposed on a side of the frame 32 away from the mounting plate 31, two brush blocks 34 are fixedly connected to the top plate 33, the frame 32 may be square, rectangular or other shape, in this embodiment, the frame 32 is rectangular corresponding to the shape of the top plate 33, and the top plate 33 can be completely located inside the frame 32 when the brush blocks 34 are impacted by the AGV trolley to approach the mounting plate 31; one side rigid coupling that roof 33 is close to mounting panel 31 has a plurality of connecting rods 35, in this embodiment, connecting rod 35 is provided with four in roof 33 corner, the one end of connecting rod 35 runs through roof 33 and with mounting panel 31 rigid coupling in the inside of frame 32 on mounting panel 31, the other end rigid coupling has the arch, protruding butt is in one side that roof 33 is kept away from mounting panel 31, cover from roof 33 to mounting panel 31 department is equipped with elastic component 36 on the connecting rod 35, in this embodiment, elastic component 36 selects for use the spring, the brush piece 34 that can be better receives the impact plays the cushioning effect, brush piece 34 receives the impact of AGV dolly to be close to mounting panel 31, make AGV dolly and brush piece 34 elasticity butt through elastic component 36, make brush piece 34 and AGV dolly's conflict inseparabler, prevent as far as possible that brush piece 34 and AGV dolly from bad contact from causing the short circuit, also alleviate the wearing and tearing to brush piece 34 in the butt joint process that charges to a certain extent.

Along with the continuous development of battery and quick charge technology, put forward higher requirement to the charge power of charger, under the prerequisite of charge voltage restriction, the charge current of charger is showing and is improving, consequently among the prior art brush piece 34 of AGV charger is mostly flexible design, in can retrieving AGV charging shell when not having the AGV dolly to charge, reduce the potential safety hazard that the heavy current in the charger probably leads to as far as possible to avoid causing the incident. However, even if the brush block 34 is retracted into the shell of the AGV charger when no AGV trolley is charged, if the brush block 34 keeps a state of being communicated with a power supply for a long time, the aging rate of the brush block 34 is accelerated and the AGV charger has a certain short circuit risk, therefore, referring to fig. 3, a micro switch 37 is further arranged in the frame 32 on the mounting plate 31, the contact distance of the micro switch 37 is smaller, the state of being communicated with the power supply can be changed by a tiny force, when the AGV trolley is charged, the AGV trolley has a certain pressure on the brush block 34, the brush block 34 further generates a smaller pressure on the micro switch 37, and after the micro switch 37 is stressed, the circuit of the brush block 34 is controlled by the first controller to be connected with the power supply, so that the AGV trolley is charged; when no AGV trolley is charged, the brush block assembly of the brush block assembly is taken into the AGV charger, and the microswitch 37 is in a state of being not connected with a power supply at the moment and further the brush block 34 is not communicated with the power supply because the microswitch 37 is in non-contact with the brush block 34. The design of the micro switch 37 slows down the aging rate of the brush block 34 to a certain extent and reduces the risk of short circuit of the AGV charger, thereby further reducing the potential safety hazard.

In order to enable the brush block 34 to extend stably, and to be in accurate butt joint with the AGV trolley to be charged, a driving mechanism is further arranged on the supporting disc 11. Referring to fig. 4, the driving mechanism includes a linear driving member 41 fixedly connected to a side of the supporting plate 11 near the ground, where the linear driving member 41 may be an air cylinder or an electric push rod, and in this embodiment, the linear driving member 41 is an electric push rod. The drive assembly still includes the direction subassembly that is used for keeping mounting panel 31 flexible steady, the direction subassembly is including setting up two optical axis guide 421 near ground one side at supporting disk 11 and rigid coupling in supporting disk 11 near ground one side and the outside supporting seat 422 of cover at optical axis guide 421, the one end difference rigid coupling of two optical axis guide 421 is near the opposite side of supporting disk 11 one side at mounting panel 31, supporting seat 422 can be linear guide, bearing frame etc. in this application embodiment, supporting seat 422 selects box bearing frame for use, box bearing frame is kept away from the one side on ground and supporting disk 11 rigid coupling is near ground one side and the position that is adjacent with mounting panel 31 in supporting disk 11, optical axis guide 421 passes and two optical axis guide 421 are located the both sides of linear drive 41 respectively from box bearing frame. The optical axis guide rails 421 which are symmetrically arranged can enable the mounting plate 31 to move along the axial direction of the linear driving piece 41 as much as possible, namely, the extending direction of the brush block 34 moves stably and does not generate displacement, so that the brush block 34 after extending is positioned at a position suitable for charging an AGV trolley, and potential safety hazards are not caused by short circuit phenomenon.

Further, in order to prevent the linear driving member 41 from excessively extending during the process of driving the brush block 34 to extend or retract, the brush block 34 is excessively abutted against the AGV charging trolley to cause abrasion or insufficient retraction, so that the brush block 34 still has a part exposed outside the AGV charger housing, and the supporting disc 11 is further provided with a sensing assembly. Referring to fig. 4, the sensing assembly includes a first proximity switch 431, a second proximity switch 432, and a sensing plate 433, which are fixedly connected to one side of the supporting plate 11 near the ground, and are fixedly connected to one end of one of the optical axis rails 421 far away from the mounting plate 31, so that when the sensing plate 433 collides with the first proximity switch 431, the brush block 34 is retracted into the shell of the AGV charger, and when the sensing plate 433 collides with the second proximity switch 432, the brush block 34 just extends to a position suitable for charging. In this embodiment, the first proximity switch 431 and the second proximity switch 432 are located on the same side of the optical axis guide rail 421 fixedly connected with the sensing plate 433, and the layout is reasonable, and the cables connected with the first proximity switch 431 and the second proximity switch 432 are not easy to generate winding phenomenon.

After the AGV charger receives a charging instruction, the linear driving piece 41 drives the mounting plate 31 to extend, the optical axis guide rail 421 moves along with the linear driving piece 41 to extend towards the extending direction of the brush block 34, when the sensing plate 433 touches the second proximity switch 432, the brush block 34 extends and is positioned at a position suitable for charging of the AGV trolley, at the moment, the second proximity switch 432 transmits the position of the linear driving piece 41 to the second controller, the second controller controls the free end of the linear driving piece 41 to stop moving, and the brush block 34 stops at a position suitable for charging of the AGV trolley; after the AGV trolley is charged, the linear driving part 41 drives the mounting plate 31 to retract, the optical axis guide rail 421 moves along with the linear driving part 41 to retract the brush block 34, when the sensing plate 433 touches the first proximity switch 431, the brush block 34 retracts to be in the AGV charger, at the moment, the first proximity switch 431 transmits the position of the linear driving part 41 to the second controller, the second controller controls the free end of the linear driving part 41 to stop moving, and the brush block 34 stops in the AGV charger.

When the AGV trolley is charged, the linear driving part 41 drives the mounting plate 31 to move along the extending direction of the brush block 34, a gap is further formed between the mounting plate and the supporting plate 11, and a cable connected with a brush block assembly through a brush block assembly circuit is also exposed in the gap, so that potential safety hazards are caused. Therefore, referring to fig. 1, the mounting plate 31 is provided with the protection cover 5 for shielding the gap between the mounting plate 31 and the supporting plate 11, the three inner side walls of the protection cover 5 away from the ground are fixedly connected with the three side walls of the mounting plate 31 away from the ground, the protection cover 5 can stretch and retract together with the mounting plate 31, and the gap between the mounting plate 31 and the supporting plate 11 is shielded.

The implementation principle of the brush block telescopic mechanism of the AGV charging machine is as follows: the supporting disc 11 and the wing plates 12 are surrounded on one side of the supporting disc 11 to form a movable cavity capable of accommodating the linear driving piece 41 and the optical axis guide rail 421, and the other side of the supporting disc 11 is provided with a movable cavity for arranging cables, so that layered arrangement of the cables electrically connected with the linear driving piece 41 and the brush block assembly is realized, further, the cables are converged in the drag chain 21, relative sliding between the cables and the drag chain 21 is avoided as far as possible, the possibility of cable winding is reduced, and the probability of potential safety hazards such as short circuit and the like of the brush block telescopic mechanism of the AGV charging machine is further reduced; the electric brush block 34 is communicated with a power supply only when the AGV trolley is charged in place in a butt joint mode through the micro switch 37, the electric brush block 34 is prevented from being communicated with the power supply as far as possible, the ageing speed of the electric brush block 34 is slowed down to a certain extent, the risk of short circuit of an AGV charging machine is reduced, and potential safety hazards are further reduced.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. AGV charging machine brush piece telescopic machanism, its characterized in that: the electric brush comprises a supporting disc (11), an electric brush block assembly movably arranged on one side of the supporting disc (11) and a driving mechanism for driving the electric brush block assembly to stretch out and draw back, wherein two wing plates (12) which are arranged in parallel are fixedly connected on one side, close to the driving mechanism, of the supporting disc (11), and the supporting disc and the two wing plates (12) jointly enclose a movable cavity for accommodating the driving mechanism; one side of the supporting disc (11) far away from the driving mechanism is provided with a drag chain (21) for accommodating a cable electrically connected with the electric brush block assembly.
2. 2. The AGV charger brush block retraction mechanism according to claim 1 wherein: the electric brush block assembly comprises a mounting plate (31) arranged on one side of the supporting plate (11) perpendicular to the ground, a frame (32) arranged on one side of the mounting plate (31) away from the supporting plate (11), a top plate (33) arranged on one side of the mounting plate (31) away from the supporting plate (11), and two electric brush blocks (34) connected with a power supply are arranged on the top plate (33).
3. 3. The AGV charger brush block retraction mechanism according to claim 2 wherein: the mounting plate (31) is further provided with a plurality of connecting rods (35) used for connecting the top plate (33) in the frame (32), one end of each connecting rod (35) is connected with the mounting plate (31), the other end of each connecting rod is connected with the top plate (33), and elastic pieces (36) located between the top plate (33) and the mounting plate (31) are sleeved on the connecting rods (35).
4. 4. The AGV charger brush block retraction mechanism according to claim 3 wherein: the mounting plate (31) is further provided with a micro switch (37) in the frame (32), the micro switch (37) is connected with a first controller, and the first controller is electrically connected with a circuit of the electric brush block (34) connected with a power supply.
5. 5. The AGV charger brush block retraction mechanism according to claim 2 wherein: the driving mechanism comprises a linear driving piece (41) arranged on one side of the supporting plate (11), a guide assembly used for keeping the mounting plate (31) flexible and stable and an induction assembly used for positioning the movable end of the linear driving piece (41), and the movable end of the linear driving piece (41) is fixedly connected with the mounting plate (31).
6. 6. The AGV charger brush block retraction mechanism according to claim 5 wherein: the guide assembly comprises two optical axis guide rails (421) arranged on the support plate (11) along the extending and contracting direction of the electric brush block (34), the two optical axis guide rails (421) are fixedly connected to two opposite sides of the mounting plate (31) respectively, and one end, close to the mounting plate (31), of the support plate (11) is fixedly connected with a support seat (422) sleeved outside the optical axis guide rails (421).
7. 7. The AGV charger brush block retraction mechanism according to claim 6 wherein: the induction assembly comprises a first proximity switch (431) and a second proximity switch (432) which are arranged on the supporting disc (11), wherein the first proximity switch (431) and the second proximity switch (432) are electrically connected with a second controller, and the second controller is electrically connected with the linear driving piece (41); one of them optical axis guide rail (421) is kept away from the one end of mounting panel (31) is provided with sensing plate (433), works as sensing plate (433) with when first proximity switch (431) contradict, brush piece (34) are received in AGV machine shell that charges, works as sensing plate (433) with when second proximity switch (432) contradict, brush piece (34) just stretches out to the position that is fit for charging.
8. 8. The AGV charger brush retraction mechanism according to any one of claims 2-7 wherein: the mounting plate (31) is provided with a protective cover (5) for shielding a gap between the mounting plate (31) and the supporting plate (11).

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