CN211255154U - Small front overhang hoisting system - Google Patents
Small front overhang hoisting system Download PDFInfo
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- CN211255154U CN211255154U CN201922067595.3U CN201922067595U CN211255154U CN 211255154 U CN211255154 U CN 211255154U CN 201922067595 U CN201922067595 U CN 201922067595U CN 211255154 U CN211255154 U CN 211255154U
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- portal
- gantry
- proximity switch
- fixedly connected
- gear
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Abstract
The utility model discloses a small front suspension lifting system, which comprises an outer portal frame and an inner portal frame which is connected with the outer portal frame in a vertical sliding way, the inner side of the outer portal frame is close to the inner portal frame, a gear is arranged at the position of the inner portal frame, a rack is fixedly connected with the inner portal frame, the rack is connected with the gear in a meshing way, the lower end of the outer portal frame is fixedly connected with a lower buffer proximity switch, the upper end of the outer portal frame is fixedly connected with an upper buffer proximity switch, the upper buffer proximity switch is positioned above the lower buffer proximity switch, the middle part of the inner portal frame is fixedly connected with an induction support plate, the application replaces the original hydraulic transmission system by arranging a gear and rack transmission system, thereby needing no installation of a hydraulic oil circuit and a lifting oil cylinder, greatly simplifying the structure of the forklift portal frame, reducing the weight of the whole forklift, therefore, the requirement on the front suspension of the forklift is reduced, the front suspension of the forklift is lower, and the turning radius of the forklift is further reduced.
Description
Technical Field
The utility model relates to a fork truck hoisting system specifically is a little front overhang hoisting system.
Background
The hoisting system includes: outer door frame, inner door frame, fork frame, fender goods shelves, gyro wheel, and hydraulic system and electrical system. The outer gantry is fixed on the front axle, the whole front and back inclination of the gantry is realized through the inclined oil cylinder, the elevation of the gantry is realized between the inner gantry and the outer gantry through a hydraulic system, and the hydraulic system mainly comprises a reversing valve, a synchronous valve, a stop valve, a hydraulic motor and a reduction gearbox. The hydraulic oil evenly distributes the oil to the left oil circuit and the right oil circuit through the synchronous valves, and then the two hydraulic oil cylinders drive the inner gantry to lift.
However, in the design process of the hoisting system, the front overhang is an important parameter of the design, and in the design, the smaller the front overhang is, the better the front overhang is. The traditional hoisting system has the problem that due to the existence of a hoisting oil cylinder (and the view of the hoisting system is considered), the front overhang of the whole hoisting system is very large, and the reduction is difficult.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a little front overhang hoisting system to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a little front overhang hoisting system, including outer portal and with outer portal upper and lower sliding connection's interior portal, it is inboard that interior portal is located outer portal, outer portal inboard is close to interior portal department is equipped with the gear, fixedly connected with rack on the interior portal, the rack with gear engagement connects, buffering proximity switch under outer portal lower extreme fixedly connected with, buffering proximity switch is gone up to outer portal upper end fixedly connected with, it is located to go up buffering proximity switch down buffering proximity switch's top, interior portal middle part fixedly connected with response extension board, the response extension board is located go up buffering proximity switch, down between the buffering proximity switch.
As a further aspect of the present invention: the outer door frame comprises an outer door frame channel steel and an outer door frame middle cross beam and an outer door frame upper cross beam which are fixedly connected to the inner side of the outer door frame channel steel.
As a further aspect of the present invention: the lower buffering proximity switch is fixedly connected to the upper end of the middle cross beam of the outer gantry, and the upper buffering proximity switch is located at the lower end of the upper cross beam of the outer gantry.
As a further aspect of the present invention: and the outer gantry channel steel is fixedly connected with a power motor, and the power motor is in power connection with the gear.
As a further aspect of the present invention: the outer gantry channel steel is fixedly connected with a power motor support, the power motor is fixedly connected to the power motor support, and the power motor is in power connection with the gear through a speed reducer.
As a further aspect of the present invention: the power motor support, the power motor, the gear and the rack are arranged symmetrically.
As a further aspect of the present invention: and an inclined oil cylinder support used for being connected with an inclined oil cylinder of the forklift is fixedly connected to one side of the middle cross beam of the outer gantry, which is far away from the inner gantry.
As a further aspect of the present invention: one end of the outer door frame far away from the inner door frame is fixedly connected with a door frame support, and the door frame support is located below a middle cross beam of the outer door frame.
As a further aspect of the present invention: interior portal include interior portal channel-section steel and fixed connection in interior portal bottom end rail and interior portal entablature on the interior portal channel-section steel, rack fixed connection in be close on the interior portal channel-section steel one side of outer portal.
As a further aspect of the present invention: one end of the inner gantry, which is far away from the outer gantry, is connected with a fork frame.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the hydraulic transmission system is replaced by the gear rack transmission system, so that a hydraulic oil way and a lifting oil cylinder are not required to be installed, the structure of the forklift gantry is greatly simplified, the reduction of a front suspension is realized, the weight of the whole forklift is reduced, the oil consumption of the forklift is reduced, and the structure is simple, the required installation space is small, so that the requirement on the front suspension of the forklift is reduced, the front suspension of the forklift is lower, and the turning radius of the forklift is further reduced;
2. according to the forklift gantry lifting control system, the upper proximity buffer switch, the lower proximity buffer switch and the sensing support plate are arranged, and the position of the sensing support plate is detected through the proximity switch, so that position signals can be sent out at the high position and the low position of the lifting of a forklift gantry, and therefore the output rotating speed of a power motor and a speed reducer of the forklift can be controlled through the position signals, so that the speed reduction and buffering of the movement of the inner gantry in the upper limit position and the lower limit position are realized, and the safety performance;
3. this application has replaced original hydraulic system and hydraulic cylinder as power transmission structure through rack and pinion for it is simpler to play to rise the system, easily overhauls moreover, has reduced use cost, has also reduced fork truck fault rate.
Drawings
FIG. 1 is a front view of the door frame of the present embodiment;
FIG. 2 is a side view of the door frame of the present embodiment;
FIG. 3 is a front view of the outer gantry of the present embodiment;
FIG. 4 is a side view of the outer gantry of the present embodiment;
fig. 5 is a front view of the inner gantry.
In the figure: 1-outer door frame, 11-outer door frame middle beam, 12-outer door frame upper beam, 13-lower buffer proximity switch, 14-power motor, 15-power motor bracket and 16-gear;
2-an inner gantry, 21-an inner gantry lower beam, 22-an outer gantry upper beam, 23-a rack and 24-an induction support plate;
3-a gantry support, 4-a fork frame and 5-an inclined oil cylinder support.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-5, in the embodiment of the utility model, a little front overhang hoisting system, including outer portal 1 and with outer portal 1 upper and lower sliding connection's interior portal 2, interior portal 2 is located outer portal 1 inboard, one side fixedly connected with that keeps away from interior portal 2 on the outer portal 1 is used for connecting the slope hydro-cylinder support 5 of fork truck slope hydro-cylinder, outer portal 1 keeps away from the one end fixedly connected with portal support 3 of interior portal 2, the one end that outer portal 1 was kept away from to interior portal 2 is connected with fork frame 4, and then rotate the portal whole with fork truck front axle through portal support 3 and be connected, drive the portal main part through the slope hydro-cylinder and rotate around portal support 3, in order to realize the holistic slope of portal.
The outer gantry 1 comprises an outer gantry channel steel, an outer gantry middle cross beam 11 and an outer gantry upper cross beam 12 which are fixedly connected to the inner side of the outer gantry channel steel, an inclined oil cylinder is rotatably connected to the outer gantry middle cross beam 11, the lower end of the outer gantry 1 is fixedly connected with a lower buffering proximity switch 13, the upper end of the outer gantry 1 is fixedly connected with an upper buffering proximity switch 17, the lower buffering proximity switch 13 is fixedly connected to the upper end of the outer gantry middle cross beam 11, the upper buffering proximity switch 17 is positioned at the lower end of the outer gantry upper cross beam 12, the upper buffering proximity switch 17 is positioned above the lower buffering proximity switch 13, a gear 16 is arranged on the inner side of the outer gantry 1 close to the inner gantry 2, a power motor support 15 is fixedly connected to the outer gantry channel steel, the power motor 14 is fixedly connected to the power motor support 15, the power motor 14 is in power connection with the gear 16 through a speed reducer, the power motor support 15, and then can drive gear revolve through power motor 14 to rise to provide power for the fork truck portal.
The utility model discloses when using, when the portal 2 is in the lifting state in the fork truck, the driving motor 14 drives gear 16 through the reduction gear and rotates, because gear 16 is connected with rack 23 meshing, therefore in the pivoted in-process of gear 16, rack 23 moves up relative to gear 16, namely inner portal 2 moves up relative to outer portal 1, in order to reach the effect that the portal lifted, when inner portal lifted to the high position, response extension board 24 was close to upper buffering proximity switch 17, upper buffering proximity switch 17 detected the proximity of response extension board 24, when reaching preset position, reduce the output rotational speed of reduction gear, and then can reduce the rotational speed of gear 16, therefore can play the cushioning effect to the lifting of portal 2 in the fork truck; when the inner gantry 2 is in a descending state, the power motor 14 and the speed reducer drive the gear 16 to rotate reversely, and further drive the rack 23 to move downwards relative to the gear 16, namely the inner gantry 2 moves downwards relative to the gear 23, when the lower buffer proximity switch 13 detects that the induction support plate 24 is close to the induction support plate, information that the inner gantry 2 moves to a low-position state is sent, and further the output rotating speed of the speed reducer can be reduced, so that the descending speed of the inner gantry 2 is reduced, and the safety performance of the gantry is guaranteed.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a little overhang hoisting system, including outer portal (1) and with outer portal (1) upper and lower sliding connection's interior portal (2), interior portal (2) are located outer portal (1) inboard, its characterized in that, outer portal (1) inboard is close to interior portal (2) department is equipped with gear (16), fixedly connected with rack (23) are gone up to interior portal (2), rack (23) with gear (16) meshing is connected, buffering proximity switch (13) under outer portal (1) lower extreme fixedly connected with, buffering proximity switch (17) are gone up to outer portal (1) upper end fixedly connected with, it is located to go up buffering proximity switch (17) down the top of buffering proximity switch (13), interior portal (2) middle part fixedly connected with response extension board (24), response extension board (24) are located go up buffering proximity switch (17), Between the lower buffer proximity switches (13).
2. A small front overhang hoisting system as in claim 1 wherein said outer gantry (1) comprises an outer gantry channel and an outer gantry middle beam (11) and an outer gantry upper beam (12) fixedly attached to the inside of said outer gantry channel.
3. A small front overhang hoisting system as in claim 2 wherein said lower buffer proximity switch (13) is fixedly attached to the upper end of said outer gantry middle beam (11) and said upper buffer proximity switch (17) is located at the lower end of said outer gantry upper beam (12).
4. The small front overhang hoisting system of claim 2, wherein a power motor (14) is fixedly connected to the outer gantry channel steel, and the power motor (14) is in power connection with the gear (16).
5. A small front overhang hoisting system as in claim 4, wherein said outer gantry channel steel is fixedly connected with a power motor bracket (15), said power motor (14) is fixedly connected with said power motor bracket (15), and said power motor (14) is power-connected with said gear (16) through a speed reducer.
6. Small front suspension crane system according to claim 5, characterized in that the power motor bracket (15), the power motor (14), the gear (16) and the rack (23) are arranged in two groups and are arranged symmetrically.
7. A small front overhang hoisting system as in claim 2 wherein a tilt cylinder support (5) for attachment of a forklift tilt cylinder is fixedly attached to the outer mast center sill (11) on the side remote from the inner mast (2).
8. A small front overhang hoisting system as claimed in claim 2, wherein a mast support (3) is fixedly attached to an end of said outer mast (1) remote from said inner mast (2), said mast support (3) being located below said outer mast center sill (11).
9. A small front overhang hoisting system as in claim 1 wherein said inner gantry (2) comprises an inner gantry channel and an inner gantry lower beam (21) and an inner gantry upper beam (22) fixedly attached to said inner gantry channel, said rack (23) being fixedly attached to said inner gantry channel on the side close to said outer gantry (1).
10. A small front overhang hoisting system as in claim 1 wherein the end of the inner mast (2) remote from the outer mast (1) is attached to a fork carriage (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922067595.3U CN211255154U (en) | 2019-11-26 | 2019-11-26 | Small front overhang hoisting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922067595.3U CN211255154U (en) | 2019-11-26 | 2019-11-26 | Small front overhang hoisting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211255154U true CN211255154U (en) | 2020-08-14 |
Family
ID=71959923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922067595.3U Active CN211255154U (en) | 2019-11-26 | 2019-11-26 | Small front overhang hoisting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211255154U (en) |
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2019
- 2019-11-26 CN CN201922067595.3U patent/CN211255154U/en active Active
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