CN101955141A - Push type high-efficiency and energy-saving forklift lifting structure - Google Patents

Push type high-efficiency and energy-saving forklift lifting structure Download PDF

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Publication number
CN101955141A
CN101955141A CN2010102757501A CN201010275750A CN101955141A CN 101955141 A CN101955141 A CN 101955141A CN 2010102757501 A CN2010102757501 A CN 2010102757501A CN 201010275750 A CN201010275750 A CN 201010275750A CN 101955141 A CN101955141 A CN 101955141A
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frame
fork truck
electronic cylinder
guide frame
push rod
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CN2010102757501A
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CN101955141B (en
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曾卫东
潘亚敏
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Shanxi Guoli Information Technology Co Ltd
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Abstract

The invention relates to a storage battery forklift, in particular to a push type high-efficiency and energy-saving forklift lifting structure, which at least comprises a push forklift body, a fork head frame, fork heads and a guide frame, wherein the fork head frame, the fork head and the guide frame are connected with the front end of the push forklift body; the fork head is connected with the guide frame in a sliding way through a guide groove, left and right two horizontal fork heads are connected with the fork frame through a forklift door frame; the guide frame and the chassis of the push forklift body are fixed; and the fork head frame slides up and down in the guide groove along the guide frame under the drive of a transmission belt/chain belt. The storage battery forklift is characterized in that: the lower end of a transverse lifting rod is vertically fixed and connected with the push rod of an electric cylinder; and the electric cylinder is fixed at eudipleural positions in the center of the guide frame. In the storage battery forklift, an electric ball screw is used to replace a fork driving cylinder, a front arm rotation cylinder, a steering cylinder, a fork transverse shit cylinder and other hydraulic cylinders of the storage battery forklift.

Description

The energy-efficient fork truck lift system of a kind of hand propelled
Technical field
The present invention relates to a kind of batter fork lift truck, relate in particular to the energy-efficient fork truck lift system of a kind of hand propelled.
Background technology
Present hand propelled fork truck lift system is driven by car fork driving oil cylinder.When fork truck was worked, the motor drives Hydraulic Pump rotated, and is connected to each oil cylinder by hydraulic tubing again, and with manually reaching motorized valve control oil circuit.But there is following problem in existing hydraulic efficiency pressure system:
1, hydraulic tubing connects complicated and easily produces leakage of oil and system's installation inconvenience.
2, hydraulic efficiency is low, so batter fork lift truck generally all adopts independent motor to drive Hydraulic Pump.Because the principle of work and the manufacture craft of Hydraulic Pump make that the work efficiency of system is lower, cause the waste of the energy.
3, hydraulic efficiency pressure system is brought fork truck single-piece decrease in efficiency, reliability reduction, big, the energy consumption increase of operation noise, the manufacturing cost height, and the system complex installation difficulty is big.
Summary of the invention
The object of the invention provides the energy-efficient fork truck lift system of a kind of hand propelled, and installation inconvenience, driving efficiency that fluid power system was brought are low, service life is low because of adopting, the operation technical matters that noise is big, reliability is low to solve existing batter fork lift truck.
The object of the present invention is achieved like this, the energy-efficient fork truck lift system of a kind of hand propelled, which comprises at least hand push fork truck body, be connected the jaw frame of hand push fork truck body front end, jaw and guide frame, jaw frame and guide frame are by the guide groove sliding block joint, two jaws on level one the first from left right side are by forklift door frame and jaw frame sliding block joint, guide frame and hand push fork truck body chassis are fixed, the jaw frame slides up and down at guide groove at belts/chain drive lower edge guide frame and claims to move, article two, belts/chain one end and jaw frame are fixed, the other end is fixed on the hand push fork truck body, article two, flexibly connect by horizontal lifting bar transition in the middle of the belts/chain, it is characterized in that: laterally vertically captive joint with the push rod of electronic cylinder in the lifting bar lower end, and electronic cylinder is fixed on left-right symmetric position, guide frame center.
Described electronic cylinder comprises electrical motor, gear pair, gear case, transmission shaft, drive bearing and push rod, electrical motor is by change-speed box or direct connection gear pair, gear pair is fixed in the gear case, gear pair connects transmission shaft simultaneously, transmission shaft is connected with the drive bearing bearing, and gear pair makes transmission shaft and motor reel constitute parallel construction.Electronic cylinder is connected with the operating mechanism of hand push fork truck body, starts, stops, stretching out, withdraws by operating mechanism control push rod.
Electronic cylinder in the described guide frame is two groups, vertically establishes between the framework of the guide frame left and right sides, and the left electronic cylinder of two groups of electronic cylinders and the balanced layout of right electronic cylinder, the left push rod of left electronic cylinder and right electronic cylinder, right push rod are connected with laterally lifting bar is vertical.
Position sensor in the described electronic cylinder; Position transduser is magnetic induction sensor or opto-electronic pickup, and the output signal of position transduser is sent into operating mechanism; Operating mechanism drives the push rod telescopic location that actuating unit is guaranteed electronic cylinder, reaches the raised position of control jaw.
Described push rod is an electric ball screw, or the connector of electric ball screw, is used for the set position transduser along push rod straight line moving direction position sensor.
The advantage that the present invention has is:
1, hand push fork truck of the present invention makes the system effectiveness height because whole drive system adopts a plurality of motors to drive respectively and control, and system's consumed energy hardly when not walking or do not promote.
2, the position feedback mechanism of each electric ball screw cylinder of hand push fork truck of the present invention is sent to the fork truck control system with the position of real-time detected electric ball screw.The height that forks object that the fork truck control system will be once, the anglec of rotation, travel distance, the heap of back steering wheel unload the height of object, position, track route record and store.By after being provided with of operating personal, full electric forklift can carry out the unmanned work of sequencing by former route according to the height that different automatically height that forks object and heap unload object.
3, electric ball screw cylinder of the present invention has forced stroke and work speed is accurately controlled, reliability is high, can not produce leakage of oil, system's advantage easy for installation.Adopt ball screw assembly, or lead screw pair to carry out movement conversion, have the advantage of conversion efficiency height, long service life.
4, electric ball screw cylinder operation noise of the present invention is low, environmentally safe.Low cost of manufacture.
5, electric ball screw cylinder of the present invention have manufacturing high conformity, be convenient to the advantage of repair and replacement.
Description of drawings
Fig. 1 is the embodiment of the invention 1 structural representation;
Fig. 2 is the side-looking structural representation of Fig. 1;
Fig. 3 is electronic cylinder structure scheme drawing;
Fig. 4 is the embodiment of the invention 2 structural representations.
Among the figure: 1, jaw frame; 2, jaw; 3, forklift door frame; 4, belts/chain; 5, lifting bar; 6, guide frame; 7, push rod; 8, electronic cylinder seat; 9, electronic cylinder; 10, fork truck moves wheel; 11, Left Drive band/chain; 12, right belts/chain; 13, left electronic cylinder; 14, right electronic cylinder; 15, left push rod; 16, right push rod; 17, hand push fork truck body; 18, electronic cylinder controller; 19, guide groove; 20, hand push handle; 21, gear pair; 22, change-speed box; 23, electrical motor; 24, gear case; 25, transmission shaft; 26, drive bearing.
The specific embodiment
Embodiment 1
As Fig. 1, shown in Figure 2, the energy-efficient fork truck lift system of a kind of hand propelled, which comprises at least hand push fork truck body 17, be connected the jaw frame 1 of hand push fork truck body 17 front ends, jaw 2 and guide frame 6, jaw frame 1 passes through guide groove 19 sliding block joints with guide frame 6, two jaws 2 on level one the first from left right side are by forklift door frame 3 and jaw frame 1 sliding block joint, guide frame 6 is fixed with hand push fork truck body 17 chassis, jaw frame 1 slides up and down at guide groove 19 at belts/chain 4 drive lower edge guide frames 6 and claims to move, article two, belts/chain 4 one ends and jaw frame 1 are fixing, the other end is fixed on the hand push fork truck body 17, article two, flexibly connect by horizontal lifting bar 5 transition in the middle of the belts/chain 4, laterally vertically captive joint with the push rod 7 of electronic cylinder 9 in lifting bar 5 lower ends, and electronic cylinder 9 is fixed on left-right symmetric position, guide frame 6 center.
As shown in Figure 3, electronic cylinder 9 comprises electrical motor 23, gear pair 21, gear case 24, transmission shaft 25, drive bearing 26 and push rod 7, electrical motor 23 output shaft connection gear pairs 21, or by change-speed box 22 connection gear pairs 21, gear pair 21 is fixed in the gear case 24, gear pair 21 connects transmission shaft 25 simultaneously, and transmission shaft 25 is connected with drive bearing 26 bearings, and gear pair 21 makes transmission shaft 25 and 23 formation parallel constructions of electrical motor.Electronic cylinder 9 is electrically connected with electronic cylinder controller 18, is located on the electronic cylinder seat 8, starts, stops, stretching out, withdraw by electronic cylinder controller 18 control push rods 7.
Embodiment 2
As shown in Figure 4, for propulsive effort and the balance that strengthens fork truck, electronic cylinder 9 in the guide frame 6 is two groups, vertically establish between guide frame 6 left and right sides frameworks, the left electronic cylinder 13 of two groups of electronic cylinders and right electronic cylinder 14 balanced layouts, Left Drive band/chain 11 and right belts/chain 12 1 ends and jaw frame 1 are fixing, the other end is fixed on the fork truck body 17, the fork truck body has for 17 times fork truck to move wheel 10, article two, flexibly connect the left push rod 15 of left electronic cylinder 13 and right electronic cylinder 14 by horizontal lifting bar 5 transition in the middle of the belts/chain 4, right push rod 16 and horizontal 5 vertical connections of lifting bar.
Hand push fork truck body 17 moves through rear end bonded assembly hand push handle 20 M/Cs, and for counterweight, there is bracing frame hand push fork truck body 17 rear ends, and fork truck integral body recedes and supported by bracing frame.
Two groups of electronic cylinders all comprise electrical motor 23, gear pair 21, gear case 24, transmission shaft 25, drive bearing 26 and push rod 7, the electrical motor of electronic cylinder 13 in a left side and right electronic cylinder 14 is connected with the electronic cylinder controller 18 of hand push fork truck body 17, by moving, move down, start, stop on the left push rod 15 of electronic cylinder controller 18 controls, the right push rod 16.
Position sensor in the electronic cylinder; Position transduser is magnetic induction sensor or opto-electronic pickup, and the output signal of position transduser is sent into operating mechanism; Operating mechanism drives the push rod telescopic location that actuating unit is guaranteed electronic cylinder, reaches the raised position of control jaw 2.
The push rod 7 of electronic cylinder can with the electric ball screw integral structure, or the connector of electric ball screw is used for the set position transduser along push rod 7 straight line moving direction position sensors.

Claims (5)

1. energy-efficient fork truck lift system of hand propelled, which comprises at least hand push fork truck body (17), be connected the jaw frame (1) of hand push fork truck body (17) front end, jaw (2) and guide frame (6), jaw frame (1) passes through guide groove (19) sliding block joint with guide frame (6), two jaws (2) on level one the first from left right side are by forklift door frame (3) and fixing, guide frame (6) is fixed with hand push fork truck body (17) chassis, jaw frame (1) slides up and down at guide groove (19) at belts/chain (4) drive lower edge guide frame (6) and claims to move, article two, belts/chain (4) one ends and jaw frame (1) are fixing, the other end is fixed on the hand push fork truck body (17), article two, flexibly connect by horizontal lifting bar (5) transition in the middle of the belts/chain (4), it is characterized in that: laterally vertically captive joint with the push rod (7) of electronic cylinder (9) in lifting bar (5) lower end, and electronic cylinder (9) is fixed on left-right symmetric position, guide frame (6) center.
2. the energy-efficient fork truck lift system of a kind of hand propelled according to claim 1, it is characterized in that: described electronic cylinder (9) comprises electrical motor (23), gear pair (21), gear case (24), transmission shaft (25), drive bearing (26) and push rod (7), electrical motor (23) is by change-speed box or direct connection gear pair (21), gear pair (21) is fixed in the gear case (24), gear pair (21) connects transmission shaft (25) simultaneously, transmission shaft (25) is connected with drive bearing (26) bearing, gear pair (21) makes transmission shaft (25) and electrical motor (23) axle formation parallel construction, electrical motor (23) is connected with the electronic cylinder controller (18) of hand push fork truck body (17), starts by electronic cylinder controller (18) control motor (23), stop, on move, move down.
3. the energy-efficient fork truck lift system of a kind of hand propelled according to claim 1, it is characterized in that: the electronic cylinder (9) in the described guide frame (6) is two groups, vertically establish between the framework of guide frame (6) left and right sides, the left electronic cylinder (13) of two groups of electronic cylinders and right electronic cylinder (14) are balanced to be arranged, left electronic cylinder (13) and the left push rod (15) of right electronic cylinder (14), right push rod (16) and horizontal vertical connection of lifting bar (5).
4. the energy-efficient fork truck lift system of a kind of hand propelled according to claim 1 is characterized in that: position sensor in the described electronic cylinder; Position transduser is magnetic induction sensor or opto-electronic pickup, and the output signal of position transduser is sent into operating mechanism; Operating mechanism drives the push rod telescopic location that actuating unit is guaranteed electronic cylinder, reaches the raised position of control jaw (2).
5. the energy-efficient fork truck lift system of a kind of hand propelled according to claim 4, it is characterized in that: described push rod (7) is an electric ball screw, or the connector of electric ball screw, be used for the set position transduser along push rod straight line moving direction position sensor.
?
CN201010275750.1A 2010-09-08 2010-09-08 Push type high-efficiency and energy-saving forklift lifting structure Active CN101955141B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102730602A (en) * 2012-06-29 2012-10-17 安徽德摩新能源叉车股份有限公司 Lighterage forklift structure
CN102807176A (en) * 2011-06-02 2012-12-05 蔡勇夫 Portable elevation type forklift
CN103879927A (en) * 2014-03-28 2014-06-25 高佳太阳能股份有限公司 Silicon wafer transferring forklift limiting mechanism
CN106044622A (en) * 2016-06-30 2016-10-26 南京卓基工业设备有限公司 Lifting device
CN111747340A (en) * 2019-03-28 2020-10-09 三菱重工业株式会社 Forklift truck

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458184A1 (en) * 1990-05-22 1991-11-27 Linde Aktiengesellschaft Fork lift truck
JP2001171990A (en) * 1999-12-22 2001-06-26 Nippon Yusoki Co Ltd Forklift
CN100419304C (en) * 2006-11-02 2008-09-17 上海交通大学 Two stage speed changing directly driving mechanism
CN201264889Y (en) * 2008-09-05 2009-07-01 晃益齿轮工业股份有限公司 Ball bearing lead electric cylinder strengthening structure
CN101717060A (en) * 2009-12-20 2010-06-02 曾卫东 Fork lifting device and electric fork truck
CN101811652A (en) * 2010-04-01 2010-08-25 张波 Electric forklift

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458184A1 (en) * 1990-05-22 1991-11-27 Linde Aktiengesellschaft Fork lift truck
JP2001171990A (en) * 1999-12-22 2001-06-26 Nippon Yusoki Co Ltd Forklift
CN100419304C (en) * 2006-11-02 2008-09-17 上海交通大学 Two stage speed changing directly driving mechanism
CN201264889Y (en) * 2008-09-05 2009-07-01 晃益齿轮工业股份有限公司 Ball bearing lead electric cylinder strengthening structure
CN101717060A (en) * 2009-12-20 2010-06-02 曾卫东 Fork lifting device and electric fork truck
CN101811652A (en) * 2010-04-01 2010-08-25 张波 Electric forklift

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102807176A (en) * 2011-06-02 2012-12-05 蔡勇夫 Portable elevation type forklift
CN102730602A (en) * 2012-06-29 2012-10-17 安徽德摩新能源叉车股份有限公司 Lighterage forklift structure
CN103879927A (en) * 2014-03-28 2014-06-25 高佳太阳能股份有限公司 Silicon wafer transferring forklift limiting mechanism
CN106044622A (en) * 2016-06-30 2016-10-26 南京卓基工业设备有限公司 Lifting device
CN111747340A (en) * 2019-03-28 2020-10-09 三菱重工业株式会社 Forklift truck

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