CN109607430B - Manual fork truck with from leveling function - Google Patents
Manual fork truck with from leveling function Download PDFInfo
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- CN109607430B CN109607430B CN201811586637.8A CN201811586637A CN109607430B CN 109607430 B CN109607430 B CN 109607430B CN 201811586637 A CN201811586637 A CN 201811586637A CN 109607430 B CN109607430 B CN 109607430B
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- hydraulic
- forklift
- supporting plate
- movable supporting
- claw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/18—Load gripping or retaining means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention belongs to the technical field of wire coil transportation, and particularly relates to a manual forklift with a self-leveling function. The forklift comprises a movable supporting plate; the tail end of the movable supporting plate is in hinged fit with the tail end of the supporting claw, and the axis of a horizontal hinged shaft of the movable supporting plate and the axis of a disc tool on the supporting claw are vertically positioned; the forklift also comprises a hydraulic jack, wherein the bottom end of the hydraulic jack is fixed at the front end of the supporting claw, and the top end of the hydraulic jack extends vertically upwards and is supported on the lower plate surface at the head end of the movable supporting plate from bottom to top; the forklift further comprises a hydraulic assembly for driving the two groups of hydraulic jacks positioned at the front ends of the two supporting claws to generate synchronous lifting action, wherein the hydraulic assembly comprises a hydraulic pump, and the hydraulic pump is communicated to the two groups of hydraulic jacks through a hydraulic pipeline and an oil way distribution valve. The invention can simply, conveniently and quickly ensure that the supporting surface of the forklift is quickly in a horizontal state so as to ensure the reliability and efficiency of the penetrating action of the disc relative to the main shaft of the pay-off rack.
Description
Technical Field
The invention belongs to the technical field of wire coil transportation, and particularly relates to a manual forklift with a self-leveling function.
Background
In the process of stranded wire production, a manual hydraulic pallet fork truck is used for lifting a wire coil containing hundreds of kilograms of copper wires and sleeving the wire coil on a main shaft of a pay-off rack. Because the drum is heavier and block between two support jaws of fork truck, can cause two support jaw front ends to slightly part in the past this for the focus after the automobile body load is leading, the front wheel begins to warp and flattens, and the wearing and tearing are accelerated, and then cause the sunken phenomenon of support jaw head end department. In case the head ends of the two supporting claws of the forklift are sunk, the supporting surface of the forklift is not horizontal, and then the disc tool positioned on the supporting surface of the forklift is in an axis inclined state. The disc with the inclined axis obviously cannot penetrate into the spindle of the pay-off rack horizontally and smoothly, and can frequently impact the spindle of the pay-off rack and even clamp a chamber, so that the production efficiency of stranded wires is affected slightly, and the disc falls from a high position due to impact, thereby causing production accidents.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the manual forklift with the self-leveling function, which can simply, conveniently and quickly ensure that the supporting surface of the forklift is quickly in a horizontal state so as to ensure the reliability and the efficiency of the penetrating action of the disc relative to the main shaft of the pay-off rack.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a manual fork truck with from leveling function which characterized in that: the forklift comprises a movable support plate, wherein the plate surface of the movable support plate is horizontal and is arranged in a one-to-one correspondence manner with two groups of support claws of the forklift; the tail end of the movable supporting plate is in hinged fit with the tail end of the supporting claw, and the axis of a horizontal hinged shaft of the movable supporting plate and the axis of a disc tool on the supporting claw are vertically positioned; the forklift also comprises a hydraulic jack with a vertical axis, the bottom end of the hydraulic jack is fixed at the front end of the supporting claw, and the top end of the hydraulic jack extends vertically upwards and is supported on the lower plate surface of the head end of the movable supporting plate from bottom to top; the forklift further comprises a hydraulic assembly for driving the two groups of hydraulic jacks positioned at the front ends of the two supporting claws to generate synchronous lifting action, wherein the hydraulic assembly comprises a hydraulic pump, and the hydraulic pump is communicated to the two groups of hydraulic jacks through a hydraulic pipeline and an oil way distribution valve.
Preferably, the movable supporting plates are in the shape of a right-angle groove with a downward opening, and the groove length directions of the two groups of movable supporting plates are parallel to the length direction of the corresponding supporting claws; two shaft ends of the horizontal articulated shaft are respectively fixed at two groove walls of the tail end of the movable supporting plate, and a shaft body of the horizontal articulated shaft horizontally penetrates through the supporting claw body to form articulated matching between the tail end of the movable supporting plate and the tail end of the supporting claw; the top end of the hydraulic jack is abutted against the bottom surface of the head end groove of the movable supporting plate.
Preferably, the tank bottom face department of movable support plate still runs through and is provided with the waist shape that is used for dodging fork truck head end gyro wheel position and dodges the hole, the parallel support claw length direction of pass length direction in hole is dodged to the waist shape, and the waist shape dodges the hole and is located fork truck head end gyro wheel directly over department.
Preferably, a placing seat is horizontally and outwards convexly arranged on one side wall of the movable supporting plate, and a bubble level meter used for monitoring the horizontal state of the supporting surface of the movable supporting plate is arranged on the top end surface of the placing seat.
Preferably, the forklift further comprises a pressure relief valve for realizing the resetting function of the movable support plate, and the pressure relief valve and the oil way distribution valve are communicated with each other through a branch pipeline.
Preferably, a counter bore for arranging a hydraulic jack is concavely arranged on the supporting surface at the head end of the supporting claw.
Preferably, the hydraulic pump is a manual hydraulic cylinder.
Preferably, the operation process of the forklift is as follows:
after the disc is loaded, the supporting claw is integrally lifted to a set height, and then whether the supporting claw tilts forwards or not is observed through a bubble level meter; if the supporting claw is inclined forwards, the hydraulic pump is operated to pump oil, hydraulic oil is conveyed to the two groups of hydraulic jacks through the oil path distribution valve, so that the head end of the movable supporting plate is lifted and leveled through synchronous lifting actions of the two groups of hydraulic jacks until bubbles of the bubble level meter are located in the middle part, the leveling process is completed after the movable supporting plate is confirmed to be horizontal, and then the tray tool racking operation can be carried out.
The invention has the beneficial effects that:
1) the invention combines the inherent structure of the traditional manual forklift, and can lead the movable supporting plate to generate upward tilting hinging action along the tail end of the movable supporting plate by additionally arranging the hinging structure of the movable supporting plate, and then provides the synchronous jacking function of the hydraulic jack of hydraulic power by a corresponding hydraulic oil circuit. During specific operation, the leveling operation is not carried out in the process of conveying the disc tool or before the process, but is carried out only when the disc penetrating operation is carried out on the pay-off rack main shaft at the end of conveying and is ready to be realized, so that the reliability and the efficiency of the penetrating action of the disc tool relative to the pay-off rack main shaft are avoided.
In conclusion, the invention can simply, conveniently and quickly ensure that the supporting surface of the forklift is quickly in a horizontal state, finally avoid the condition of impact damage of production equipment caused by forced loading of the forklift due to the fact that the tray on the forklift is not horizontal, and meanwhile, because structural improvement is carried out based on the existing forklift, the updating cost is extremely low, and the use is convenient and reliable.
2) As a further preferable mode of the above mode, the movable supporting plate may be directly formed into a rectangular groove shape with an opening facing downward, so that the supporting claw may be caught by the groove cavity of the movable supporting plate to ensure structural stability after it bears a disk distance of a great weight. Meanwhile, when the movable supporting plate is hinged, the groove edges on the two sides of the movable supporting plate are matched with the two side walls of the supporting claw to form guide surfaces, so that the accuracy of the hinging action of the movable supporting plate is further ensured.
3) The arrangement of the waist-shaped avoiding hole considers the action interference condition possibly existing between the original front-end rollers of the forklift at the supporting claw when the movable supporting plate descends to the lowest point along the horizontal hinged shaft. Through setting up the waist shape and dodging the hole, can avoid the emergence of above-mentioned interference situation to guarantee fork truck normal operating.
4) The bubble level meter is used for realizing the purpose of monitoring whether the movable supporting plate is in a horizontal state on line, so that the invention is convenient to operate and quickly and reliably realizes the purpose of quickly leveling the movable supporting plate.
5) After the disc is loaded, the supporting claw is integrally lifted to a set height, and then whether the supporting claw tilts forwards or not is observed through a bubble level meter; if the supporting claw is inclined forwards, the hydraulic pump is operated to pump oil, hydraulic oil is conveyed to the two groups of hydraulic jacks through the oil path distribution valve, so that the head end of the movable supporting plate is lifted and leveled through synchronous lifting actions of the two groups of hydraulic jacks until bubbles of the bubble level meter are located in the middle part, the leveling process is completed after the movable supporting plate is confirmed to be horizontal, and then the tray tool racking operation can be carried out. And after the dish utensil is put on the shelf and is accomplished, then accessible operation relief valve realizes the quick pressure release function of whole hydraulic jack's oil circuit to reset rapidly and obtain the backup pad.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
fig. 3 is a schematic perspective view of the movable supporting plate.
The actual correspondence between each label and the part name of the invention is as follows:
a-support claw b-forklift head end roller
10-movable supporting plate 11-horizontal articulated shaft 12-waist-shaped avoidance hole
20-Hydraulic jack
31-hydraulic pump 32-hydraulic pipeline 33-oil path distribution valve 34-pressure relief valve
40-seat 41-bubble level meter
50-counter bore
Detailed Description
For ease of understanding, the specific structure and operation of the present invention is further described herein with reference to FIGS. 1-3:
the specific structure of the invention is shown in fig. 1-3, and the structure comprises two groups of supporting claws a which are positioned in front of a vehicle body and have a bearing function, wherein the two groups of supporting claws a are closed at the tail ends and driven by tail end rollers, and the front ends of the two groups of supporting claws a are respectively provided with a group of forklift head end rollers b.
On the basis of the structure, the invention also comprises a movable supporting plate 10 buckled at the upper plate surfaces of the two groups of supporting claws a. The shape of the movable supporting plate 10 is shown in fig. 3, and is a right-angle groove with a downward opening, and the width of the groove of the movable supporting plate 10 is inevitably larger than the width of the corresponding supporting jaw a, so that the movable supporting plate 10 can be buckled on the corresponding supporting jaw a as shown in fig. 1. A connecting pin is disposed at the rear end of the movable support plate 10, i.e., the left end as viewed in fig. 1-2, to form a horizontal hinge shaft 11. The connecting pin sequentially penetrates through the slot wall of one side of the movable support plate 10, the body of the support claw a and the slot wall of the other side of the movable support plate 10 along the slot width direction of the movable support plate 10, so that a hinge fit structure can be formed between the movable support plate 10 and the support claw a. Meanwhile, a counter bore 50 is dug at the head end of the supporting claw a, a hydraulic jack 20 is fixed in the counter bore 50, and the head end of the hydraulic jack 20 extends vertically upwards and abuts against the bottom surface of the groove at the head end of the movable supporting plate 10 from bottom to top. It should be noted that the top end of the hydraulic jack 20 only needs to abut against the movable supporting plate 10 without forming a fixed connection fit therebetween, so that the movable supporting plate 10 can respond to the lifting action of the hydraulic jack 20 quickly to perform a corresponding leveling operation.
Considering that the hydraulic jacks 20 are provided in two sets so as to correspond to the two sets of the supporting claws a, the two sets of the hydraulic jacks 20 must have a special effect of synchronous action. The hydraulic components are arranged as shown in fig. 1-2, the manual hydraulic cylinder is used as the hydraulic pump 31, the oil path distribution valve 33 is used for providing two groups of hydraulic jacks 20 to coordinate the action special effect, and the pressure release valve 34 is used for ensuring the quick reset function of the movable supporting plate 10, so that the working reliability of the whole structure is finally ensured.
For ease of understanding, the specific workflow of the invention is presented herein as follows:
after the disk is loaded, the supporting claws a are integrally lifted to a predetermined height, and then whether the supporting claws a tilt forward is observed by the bubble level meter 41. If the supporting claw a tilts forward, the hydraulic pump 31 is operated to pump oil, and hydraulic oil is conveyed to the two groups of hydraulic jacks 20 through the oil path distribution valve 33, so that the head end of the movable supporting plate 10 is lifted and leveled through the synchronous lifting action of the two groups of hydraulic jacks 20 until the bubble of the bubble level gauge 41 is positioned in the middle part, and the leveling process is completed after the movable supporting plate 10 is confirmed to be level, and then the tray racking operation can be carried out. After the tray is put on the shelf, the relief valve 34 is operated to quickly relieve the pressure of the oil path of the whole hydraulic jack 20, so that the support plate can be quickly restored. The leveling operation is performed only when the main shaft of the pay-off rack needs to be threaded, and the leveling operation needs to be quickly reset after the main shaft of the pay-off rack is threaded so as to be reused next time.
Claims (7)
1. The utility model provides a manual fork truck with from leveling function which characterized in that: the forklift comprises a movable support plate (10) which is provided with a horizontal plate surface and corresponds to two groups of support claws (a) of the forklift one by one; the tail end of the movable supporting plate (10) is in hinged fit with the tail end of the supporting claw (a), and the axis of a horizontal hinged shaft (11) of the movable supporting plate and the tail end of the supporting claw (a) is vertical to the axis of the disc tool on the supporting claw (a); the forklift also comprises a hydraulic jack (20) with a vertical axis, the bottom end of the hydraulic jack (20) is fixed at the front end of the supporting claw (a), and the top end of the hydraulic jack (20) vertically extends upwards and is supported at the lower plate surface of the head end of the movable supporting plate (10) from bottom to top; the forklift further comprises a hydraulic assembly for driving the two groups of hydraulic jacks (20) positioned at the front ends of the two supporting claws (a) to generate synchronous lifting action, wherein the hydraulic assembly comprises a hydraulic pump (31), and the hydraulic pump (31) is communicated to the two groups of hydraulic jacks (20) through a hydraulic pipeline (32) and an oil way distribution valve (33).
2. The manual forklift with the self-leveling function according to claim 1, wherein: the movable supporting plates (10) are in the shape of a right-angle groove with a downward opening, and the groove length directions of the two groups of movable supporting plates (10) are parallel to the length direction of the corresponding supporting claw (a); two shaft ends of the horizontal articulated shaft (11) are respectively fixed at two groove walls at the tail end of the movable supporting plate (10), and a shaft body of the horizontal articulated shaft (11) horizontally penetrates through a claw body of the supporting claw (a) to form articulated matching between the tail end of the movable supporting plate (10) and the tail end of the supporting claw (a); the top end of the hydraulic jack (20) is abutted against the bottom surface of the head end groove of the movable supporting plate (10).
3. The manual forklift with the self-leveling function according to claim 2, wherein: the groove bottom face department of movable supporting plate (10) still runs through and is provided with waist shape dodge hole (12) that are used for dodging fork truck head end gyro wheel (b) position, the parallel support claw of pass length direction (a) length direction of hole (12) is dodged to waist shape, and just the waist shape is dodged hole (12) and is located fork truck head end gyro wheel (b) department directly over.
4. A hand-operated forklift with self-leveling function according to claim 1, 2 or 3, wherein: a placing seat (40) is horizontally and outwards convexly arranged on one side wall of the movable supporting plate (10), and a bubble level meter (41) used for monitoring the horizontal state of the supporting surface of the movable supporting plate (10) is arranged on the top end surface of the placing seat (40).
5. The manual forklift with the self-leveling function according to claim 4, wherein: the forklift further comprises a pressure relief valve (34) used for achieving the reset function of the movable supporting plate (10), and the pressure relief valve (34) and the oil way distribution valve (33) are communicated with each other through a branch pipeline.
6. A hand-operated forklift with self-leveling function according to claim 1, 2 or 3, wherein: and a counter bore (50) for arranging a hydraulic jack (20) is concavely arranged on the supporting surface at the head end of the supporting claw (a).
7. The manual forklift with the self-leveling function according to claim 4, wherein: the operation flow of the forklift is as follows:
after the disc is loaded, the supporting claw (a) is integrally lifted to a set height, and then whether the supporting claw (a) tilts forwards or not is observed through a bubble level meter (41); if the supporting claw (a) inclines forwards, the hydraulic pump (31) is operated to pump oil, hydraulic oil is conveyed to the two groups of hydraulic jacks (20) through the oil path distribution valve (33), so that the head end of the movable supporting plate (10) is lifted and leveled through synchronous lifting actions of the two groups of hydraulic jacks (20) until bubbles of the bubble level gauge (41) are located in the middle part, and the leveling process is completed after the movable supporting plate (10) is confirmed to be horizontal, and then the tray tool racking operation can be carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811586637.8A CN109607430B (en) | 2018-12-25 | 2018-12-25 | Manual fork truck with from leveling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811586637.8A CN109607430B (en) | 2018-12-25 | 2018-12-25 | Manual fork truck with from leveling function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109607430A CN109607430A (en) | 2019-04-12 |
| CN109607430B true CN109607430B (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811586637.8A Active CN109607430B (en) | 2018-12-25 | 2018-12-25 | Manual fork truck with from leveling function |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112374423B (en) * | 2020-11-16 | 2022-03-04 | 青岛正方圆传动科技有限公司 | Auxiliary supporting mechanism for preventing forklift from inclining forwards |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004136996A (en) * | 2002-10-15 | 2004-05-13 | Nippon Yusoki Co Ltd | Low lift truck |
| CN103112802B (en) * | 2013-02-06 | 2015-09-30 | 南京沃力机电科技有限公司 | A kind of electrocar |
| CN206666037U (en) * | 2017-03-27 | 2017-11-24 | 南京联合全程物流有限公司 | For large-scale canned chemicals transhipment fork truck |
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2018
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| CN109607430A (en) | 2019-04-12 |
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