CN114436171A

CN114436171A - Forklift portal frame

Info

Publication number: CN114436171A
Application number: CN202111621023.0A
Authority: CN
Inventors: 吴鹏; 祝刘龙; 刘克; 王旭东
Original assignee: Zhejiang Youen Intelligent Technology Co ltd
Current assignee: Zhejiang Youen Intelligent Technology Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-06
Anticipated expiration: 2041-12-27
Also published as: CN114436171B

Abstract

The invention discloses a forklift mast, which relates to the technical field of forklifts and comprises an outer mast, an inner mast and a fork frame, wherein the outer mast is connected with the inner mast in a lifting way, the fork frame is arranged on the inner mast, and the forklift mast further comprises: the detection mechanism is used for assisting a forklift to carry out shoveling or stacking; the carrying mechanism is arranged on the fork frame, the fixed end of the detection mechanism is arranged on the carrying mechanism, and the detection end of the detection mechanism is used for scanning obstacles encountered during shovel loading or stacking. When a driver inconveniently gets off the vehicle, the detection mechanism starts to scan the obstacles and feeds the obstacles back to the driver, so that the driver can conveniently avoid the obstacles, the driver can conveniently drive the vehicle to shovel or stack goods, and the driver does not need to get off the vehicle to check and avoid the obstacles. This application has the effect of making things convenient for navigating mate shovel dress or stack operation.

Description

Forklift portal frame

Technical Field

The invention relates to the technical field of forklifts, in particular to a forklift gantry.

Background

The forklift gantry is a main bearing structure of a forklift load taking device, is also a mechanism for lifting goods, is also called a gantry, and is widely applied to transfer goods in factories.

Referring to fig. 1, a fork truck mast, which is assembled at the advancing end of a truck body 1, includes an outer mast 2 hinged to the truck body 1 by a tilting cylinder, an inner mast 3 nested opposite to the outer mast 2, and a fork carriage 4 mounted on the inner mast 3. The fork frame 4 loads goods, and the fork frame 4 goes up and down along the vertical direction of outer portal 2 along with inner portal 3, controls automobile body 1 and gos forward or retreat, and then makes things convenient for shovel dress or stack goods.

With respect to the above-described related art, the inventors consider that: when the forklift mast is used for shoveling or stacking, the shoveling or stacking operation of a driver is easily influenced due to the fact that goods are piled up and shielded.

Disclosure of Invention

For the convenience of driver's shovel dress or stack operation, this application provides a fork truck portal.

The utility model provides a fork truck portal, its includes outer portal, interior portal and fork frame, the outer portal links to each other with interior portal lift, the fork frame is installed in interior portal, still includes: the detection mechanism is used for assisting a forklift to carry out shoveling or stacking;

the carrying mechanism is arranged on the fork frame, the fixed end of the detection mechanism is arranged on the carrying mechanism, and the detection end of the detection mechanism is used for scanning obstacles encountered during shoveling or stacking.

Through adopting above-mentioned technical scheme, install detection mechanism on carrying mechanism, install carrying mechanism on the fork frame. When using above-mentioned fork truck portal, the fork frame begins to shovel dress or stack goods, at the in-process of goods shovel dress or stack goods, starts detection mechanism when navigating mate is inconvenient to get off, and detection mechanism begins to sweep the barrier of looking for to feed back to navigating mate, and then make things convenient for navigating mate to avoid the barrier, thereby make things convenient for navigating mate to drive shovel dress or stack goods, and finally make this application have the advantage of making things convenient for navigating mate to shovel dress or stack goods.

Optionally, the fork frame comprises a first fork and a second fork, and the distance between the first fork and the second fork is adjustable;

the carrying mechanism comprises a stepping motor, a reciprocating screw rod connected with the stepping motor and a matching rod matched with the reciprocating screw rod, the stepping motor is installed on the first fork, a limiting part is arranged at one end, away from the reciprocating screw rod, of the matching rod, the matching rod is connected with the second fork through the limiting part, and the limiting part is used for limiting axial displacement of the matching rod.

Through adopting above-mentioned technical scheme, the fork frame is because of the needs of in-service use, the goods of different specifications can be shoveled to interval adjustable fork one and fork two, for adapting to interval adjustable fork, remove the restriction of locating part and start step motor, the reciprocal lead screw of step motor drive, reciprocal lead screw drives cooperation pole axial displacement, consolidate the locating part again at last, and then it is adjustable to accomplish the adaptation fork, simultaneously because of carrying the mechanism and connecting fork one and fork two respectively, make the embarkation structure have the advantage that improves fork frame wholeness ability again.

Optionally, the limiting part comprises a displacement rod and a nut, one end of the displacement rod is fixedly connected with the matching rod, and the other end of the displacement rod penetrates through the second fork in a gap mode and is fixed with the second fork through the nut.

Through adopting above-mentioned technical scheme, when the installation locating part, earlier make the displacement pole clearance wear to establish fork two, later fix displacement pole and cooperation pole, and then realize becoming whole with fork one and two adjustable connections of fork, later remove the nut restriction, and then can make things convenient for step motor drive and then adapt to and adjust the fork frame, lock nut then realizes improving the wholeness of carrying mechanism and fork frame at last.

Optionally, the detection mechanism includes a detection module, the detection module is located between the stepping motor and the matching rod, and the detection module is matched with the reciprocating screw rod to move.

By adopting the technical scheme, the detection module is matched with the reciprocating screw rod, so that the stepping motor is started, the reciprocating screw rod is driven by the stepping motor, the reciprocating screw rod drives the detection module to perform reciprocating scanning on the barrier, the range of the detection module for scanning the barrier is further improved, and auxiliary shoveling or goods stacking is effectively performed.

Optionally, the detection mechanism further includes a damping cavity provided with a transparent region, and the detection module is located in the damping cavity.

Through adopting above-mentioned technical scheme, the shock attenuation chamber can hold the detection module on the one hand, reduces the impurity in the external environment to the pollution of detecting the module, and then improves the ability that the detection module surveyed the barrier, and the transparent region then adapts to the detection module and sweeps.

Optionally, the reciprocating screw rod is externally sleeved with a spring piece, one end of the spring piece is fixed with the stepping motor, and the other end of the spring piece is fixed with the damping cavity.

Through adopting above-mentioned technical scheme, because of operating environment's complexity, fork frame and carrying structure suffer the striking easily, the spring part can slow down axial striking effectively, improves reciprocating screw's use to the life of extension carrying mechanism.

Optionally, the inner wall of the damping cavity is square, a displacement block is arranged on the inner wall of the damping cavity in a matched manner, and the displacement block is matched with the reciprocating screw rod;

the periphery of the displacement block is provided with an accommodating cavity, and the detection module is located in the accommodating cavity.

Through adopting above-mentioned technical scheme, hold the chamber and further protect the detection module not influenced by the environment, and the displacement piece because of with square shock attenuation intracavity inner wall cooperation and with reciprocal lead screw cooperation, so the displacement piece can be followed the length direction of past multifilament pole and carried out reciprocating displacement, and then drives the detection module and carry out reciprocating sweep and examine the barrier comprehensively.

Optionally, the roof is equipped with the tooth condition in the shock attenuation intracavity, the displacement piece can be followed the length direction of past multifilament pole and rack spare relative slip, rack spare meshing has gear spare one, gear spare one meshes has gear spare two, two one ends of gear spare with hold the intracavity wall and rotate and link to each other, two other ends of gear spare are fixed with the detection module.

Through adopting above-mentioned technical scheme, because of displacement piece and rack spare relative displacement, so first also relative rack spare relative displacement of gear spare, and then drive gear spare and rotate, second rotation of gear spare drive gear spare is rotated to gear spare, and then drives the detection module and rotates, and the detection module rotates and further improves and sweep the check scope.

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

1. when a driver is inconvenient to get off the vehicle, the detection mechanism is started to scan the obstacles and feed the obstacles back to the driver, so that the driver can conveniently avoid the obstacles, the driver can conveniently drive to shovel or stack goods, and finally the vehicle has the advantage of conveniently shoveling or stacking the goods;

2. the step motor is started, the step motor drives the reciprocating screw rod, the reciprocating screw rod drives the matching rod to axially displace, and finally the limiting part is reinforced again, so that the adjustment of the fork is completed, and meanwhile, the carrying mechanism is respectively connected with the first fork and the second fork, so that the carrying structure has the advantage of improving the overall performance of the fork frame;

3. the reciprocating screw rod drives the detection module to perform reciprocating scanning on the obstacles, so that the range of the detection module for scanning the obstacles is enlarged, and auxiliary shovel loading or goods stacking is effectively performed;

4. the first gear piece also moves relative to the rack piece, so that the first gear piece is driven to rotate, the first gear piece rotates to drive the second gear piece to rotate, the detection module is driven to rotate, and the scanning range is further improved by the rotation of the detection module.

Drawings

FIG. 1 is a schematic diagram showing the construction of a forklift mast and body in the background of the present application;

FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 3 is a schematic diagram showing the construction of a fork carriage, a detection mechanism and a carrying mechanism according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a detection mechanism and a carrying mechanism according to an embodiment of the present application;

fig. 5 is an enlarged schematic view of a structure at a in fig. 4.

Description of the reference numerals: 1. a vehicle body; 2. an outer gantry; 3. an inner gantry; 4. a fork carriage; 41. a frame body; 42. an electric push rod; 43. a first pallet fork; 44. a second pallet fork; 5. a detection mechanism; 51. a detection module; 52. a damping chamber; 521. a transparent region; 522. a displacement block; 523. an accommodating chamber; 524. a sliding hole; 53. tooth condition; 531. a rack bar; 532. mounting a rod; 54. a first gear member; 541. a shaft lever; 542. a flat gear; 543. a damping spring; 55. a second gear piece; 551. a driven lever; 552. an upper bevel gear; 553. a lower bevel gear; 6. a mounting mechanism; 61. a stepping motor; 62. a reciprocating screw rod; 63. a mating rod; 64. a limiting member; 641. a displacement rod; 642. a nut; 65. a spring member.

Detailed Description

The present application is described in further detail below with reference to figures 2-5.

The embodiment of the application discloses fork truck portal, refer to fig. 2, it includes outer portal 2, interior portal 3, fork frame 4, detection mechanism 5 and carrying mechanism 6, it is inboard that interior portal 3 one side slides nested in outer portal 2, one side fixed connection that interior portal 3 deviates from outer portal 2 is in fork frame 4, interior portal 3 goes up and down along 2 vertical directions of outer portal, so fork frame 4 goes up and down the operation along with the lift of interior portal 3. The carrying mechanism 6 is installed on the fork frame 4, the detection mechanism 5 is installed on the carrying mechanism 6, when a forklift gantry is used for shoveling or placing goods, the detection mechanism 5 can sweep and check obstacles between stacks along with the fork frame 4 and feed back the obstacles to a driver, and then the driver is assisted in operating.

Referring to fig. 2 and 3, the fork carriage 4 includes a frame body 41, an electric push rod 42, a first fork 43 and a second fork 44 with adjustable intervals, the frame body 41 is fixed to the inner mast 3, two ends of the electric push rod 42 are both fixedly connected to the frame body 41, and the first fork 43 and the second fork 44 are respectively and movably connected to the electric push rod 42.

Referring to fig. 3 and 4, the carrying mechanism 6 includes a stepping motor 61, a reciprocating screw rod 62, a matching rod 63 and a limiting member 64, and the stepping motor 61 has good forward and reverse driving and self-locking functions. The stepping motor 61 is fixedly connected with the first pallet fork 43, the output end of the stepping motor 61 is fixedly connected with the reciprocating screw rod 62, and one end, far away from the stepping motor 61, of the reciprocating screw rod 62 is in threaded fit with the matching rod 63. In the initial state, one end of the matching rod 63, which is far away from the reciprocating screw rod 62, is connected with the second fork 44 in an abutting mode, and in order to adapt to the adjustable fork distance, the matching rod 63 and the second fork 44 are in the spaced state.

One end of the engaging rod 63 far away from the reciprocating screw rod 62 is fixedly connected to the limiting member 64. The position-limiting member 64 includes a displacement rod 641 and a nut 642, the displacement rod 641 is a threaded rod, one end of the displacement rod 641 is fixedly connected to the matching rod 63, and the other end of the displacement rod 641 penetrates through the second fork 44 and is fastened by the nut 642. In order to adapt to the adjustable fork spacing, the nut 642 is moved and the stepping motor 61 is started, when the fork spacing is adjusted and integrated, the stepping motor 61 is stopped and the nut 642 is tightly abutted against the second fork 44 again to realize stable spacing, and the integrity of the fork frame 4 is improved.

Referring to fig. 4 and 5, the detection mechanism 5 includes a detection module 51, and the detection module 51 may select an infrared thermal imager, which has an imaging function and is very convenient for detecting an obstacle.

The detection mechanism 5 further comprises a shock absorption cavity 52, a main body of the shock absorption cavity 52 is made of a material which is the same as that of the fork, the shock absorption cavity 52 is formed with a transparent area 521, and the transparent area 521 can be formed by: the shock absorption cavity 52 is provided with a gap, and the gap is fixed by acrylic transparent plates in a thermoplastic way, so that the gap is sealed.

The damping chamber 52 is elongated and the inner wall of the damping chamber 52 is square. The outer wall of one end of the shock absorption cavity 52 is fixedly connected to one side, facing the second fork 44, of the first fork 43, the other end of the shock absorption cavity 52 horizontally faces the second fork 44, the outer bottom wall of the shock absorption cavity 52 is higher than the bottom wall of the first fork 43 or the second fork 44, collision of the shock absorption cavity 52 caused when the bottom of the first fork 43 or the second fork 44 collides with a foreign object is weakened, and therefore stability of the shock absorption cavity 52 is improved.

Step motor 61 fixed mounting is in the inside one end of shock attenuation chamber 52, and step motor 61 is close to fork 43, and cooperation pole 63 is the square that suits with the shock attenuation chamber 52 inner wall shape, and cooperation pole 63 part is located inside shock attenuation chamber 52, and step motor 61 drive reciprocating screw 62 and then realize the relative shock attenuation chamber 52 axial displacement of cooperation pole 63, but cooperation pole 63 can not break away from shock attenuation chamber 52 and can not locate with motion to step motor 61.

The shock absorbing cavity 52 is further provided with a displacement block 522, the displacement block 522 is in threaded fit with the reciprocating screw rod 62, namely, the reciprocating screw rod 62 penetrates through the displacement block 522. The shape of the displacement block 522 is adapted to the inner wall of the damping cavity 52, the surface of the displacement block 522 is in sliding contact with the surface of the damping cavity 52, the stepping motor 61 is started, the stepping motor 61 drives the reciprocating screw rod 62, the reciprocating screw rod 62 can also drive the displacement block 522 to reciprocate along the length direction of the reciprocating screw rod 62, and it is noted that the moving range of the displacement block 522 is always consistent with the transparent area 521.

The displacement block 522 faces one side of the transparent area 521, and is provided with an accommodating cavity 523, and the detection module 51 is located in the accommodating cavity 523. Meanwhile, the stepping motor 61 is towards the one end fixedly connected with spring part 65 of displacement piece 522, and the spring part 65 is a buffer spring, and the one end and the displacement piece 522 perisporium fixed connection of the stepping motor 61 are kept away from to the spring part 65, and the spring part 65 cover is located to the reciprocating screw 62 outside. The spring member 65 provides limited damping when the shock absorbing chamber 52 is subjected to a horizontal axial load and improves the reciprocating movement of the displacement block 522 and the probing of the probe module 51. And the end of the stepping motor 61 departing from the reciprocating screw rod 62 is also provided with a spring element 65, and the spring element 65 is horizontally fixed with the inner wall of the damping cavity 52, so that the reciprocating motion of the displacement block 522 is further improved.

The damping chamber 52 is also provided with a rack member 53, and the rack member 53 is arranged in parallel with respect to the reciprocating screw rod 62. The rack member 53 includes a rack bar 531 horizontally disposed and two mounting bars 532, and the two mounting bars 532 are respectively vertically and fixedly coupled to ends of the rack bar 531 in a chevron shape. The ends of the two mounting rods 532 far away from the rack rod 531 are fixedly connected with the inner top wall of the damping cavity 52 in sequence, and can be mounted by welding. Meanwhile, the accommodating cavity 523 is provided with sliding holes 524 along two opposite side walls of the reciprocating screw rod 62 in the length direction, and the rack bar 531 sequentially penetrates through the two sliding holes 524 in a sliding manner.

The rack bar 531 is engaged with a first gear piece 54, the first gear piece 54 comprises a shaft rod 541, a flat gear 542 and a damping spring 543, the top of the shaft rod 541 is rotatably connected with the top wall in the accommodating cavity 523 through a bearing, the bottom end of the shaft rod 541 is coaxially fixed with the flat gear 542, and the flat gear 542 is engaged with the rack bar 531 for transmission.

The bottom surface of the flat gear 542, which is away from the shaft 541, is fixedly connected with a second gear 55, the second gear 55 includes a driven rod 551, an upper bevel gear 552 and a lower bevel gear 553 which is engaged with the upper bevel gear 552, one end of the driven rod 551 is rotatably connected with the peripheral side wall of the accommodating cavity 523 through a bearing, and the other end of the driven rod 551 is coaxially and fixedly connected with the detection module 51 after being fixedly arranged through the lower bevel gear 553. When the displacement block 522 moves, the flat gear 542 moves relative to the rack and then rotates, the flat gear 542 rotates and then drives the driven rod 551 to rotate, the driven rod 551 rotates and then drives the detection block to rotate in a reciprocating manner, the scanning range of the detection module 51 is further expanded, and the two different transmission structures can be realized only by one stepping motor 61.

The implementation principle of the embodiment of the application is as follows:

when the distance between the first fork 43 and the second fork 44 needs to be adjusted, the nut 642 is adjusted, the power supply of the stepping motor 61 and the power supply of the electric push rod 42 are simultaneously started, the reciprocating screw rod 62 drives the matching rod 63 to axially displace, the matching rod 63 further drives the displacement rod 641 to axially displace relative to the second fork 44, and when the distance between the first fork 43 and the second fork 44 is adjusted, the stepping motor 61 is stopped, and the nut 642 is locked.

When the forklift gantry is used for shoveling or stacking goods, the control power supply of the detection module 51 is started firstly, then the stepping motor 61 is started as required, the reciprocating screw rod 62 drives the displacement block 522 to axially reciprocate, the flat gear 542 rotates and moves relative to the rack rod 531, the driven rod 551 is driven to rotate through the upper bevel gear 552 and the lower bevel gear 553, the detection module 51 is driven to rotate to perform reciprocating scanning and horizontal reciprocating scanning, obstacles encountered during shoveling or stacking are scanned comprehensively, and a driver can conveniently avoid the obstacles, so that the forklift gantry is very convenient. Meanwhile, due to the limiting effect of the nut 642, the engagement rod 63 cannot be displaced to affect the use of the fork frame 4, and the integrity between the fork frame 4 and the carrying mechanism 6 is maintained.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a fork truck portal, includes outer portal (2), interior portal (3) and fork arm frame (4), outer portal (2) link to each other with interior portal (3) go up and down, install in interior portal (3) fork arm frame (4), its characterized in that:

further comprising: the detection mechanism (5) is used for assisting a forklift to carry out shoveling or stacking;

the carrying mechanism (6), the fork frame (4) is located in carrying mechanism (6), carrying mechanism (6) is located to the stiff end of detection mechanism (5), the detection end of detection mechanism (5) is used for sweeping the barrier that meets when looking over shovel dress or stack.

2. The forklift mast of claim 1, wherein:

the fork frame (4) comprises a first fork (43) and a second fork (44) with adjustable intervals;

carry on mechanism (6) including step motor (61), the reciprocal lead screw (62) that links to each other with step motor (61) and with reciprocal lead screw (62) complex cooperation pole (63), step motor (61) are installed in fork one (43), the one end that reciprocal lead screw (62) was kept away from in cooperation pole (63) is equipped with locating part (64), cooperation pole (63) link to each other with fork two (44) through locating part (64), locating part (64) are used for restricting cooperation pole (63) axial displacement.

3. The forklift mast of claim 2, wherein:

the limiting piece (64) comprises a displacement rod (641) and a nut (642), one end of the displacement rod (641) is fixedly connected with the matching rod (63), and the other end of the displacement rod (641) penetrates through the second fork (44) in a gap mode and is fixed with the second fork (44) through the nut (642).

4. The forklift mast of claim 2, wherein:

the detection mechanism (5) comprises a detection module (51), the detection module (51) is positioned between the stepping motor (61) and the matching rod (63), and the detection module (51) is matched with the reciprocating screw rod (62) to move.

5. The forklift mast of claim 2, wherein:

the detection mechanism (5) further comprises a damping cavity (52) provided with a transparent area (521), and the detection module (51) is located in the damping cavity (52).

6. The forklift mast of claim 5, wherein:

the reciprocating screw rod (62) is externally sleeved with a spring piece (65), one end of the spring piece (65) is fixed with the stepping motor (61), and the other end of the spring piece (65) is fixed with the damping cavity (52).

7. The forklift mast of claim 5, wherein:

the inner wall of the damping cavity (52) is square, a displacement block (522) is arranged on the inner wall of the damping cavity (52) in a matched mode, and the displacement block (522) is matched with the reciprocating screw rod (62);

the peripheral side of the displacement block (522) is provided with an accommodating cavity (523), and the detection module (51) is positioned in the accommodating cavity (523).

8. The forklift mast of claim 7, wherein:

roof is equipped with tooth condition (53) in shock attenuation chamber (52), the length direction and the tooth condition (53) relative slip that reciprocating screw rod (62) can be followed to displacement piece (522), tooth condition (53) meshing has gear piece (54), gear piece (54) meshing has gear piece two (55), gear piece two (55) one end with hold chamber (523) inner wall and rotate and link to each other, gear piece two (55) other end is fixed with detection module (51).