CN212503843U

CN212503843U - Forklift electronic scale

Info

Publication number: CN212503843U
Application number: CN202021896776.3U
Authority: CN
Inventors: 魏万邦
Original assignee: Zhengzhou Jingheng Industrial Co Ltd
Current assignee: Zhengzhou Jingheng Industrial Co Ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-02-09
Anticipated expiration: 2030-09-02

Abstract

The utility model provides a fork truck electronic scale relates to fork truck technical field, and it is great that the fork truck electronic scale among the prior art receives driver's operation horizontally influence, technical problem that measurement accuracy is low to have solved. This fork truck electronic scale includes weighing sensor, position sensor, response slider and weighing control appearance, and position sensor includes along the first response contact and the second response contact of vertical setting, and the response slider is connected with the fork subassembly, weighing control appearance and weighing sensor and position sensor communication connection, the utility model discloses a decide to get a measurement of highly carrying out speed and weight to rectify through the weighing control appearance, during the actual weighing, the driver need not master the size of throttle excessively, whether speed is fast and at the uniform velocity, all can carry out dynamic measurement and weigh, has greatly reduced the influence of driver operation level symmetrical weighing sensor measurement accuracy, the utility model is used for make fork truck electronic scale's use convenient more and accurate.

Description

Forklift electronic scale

Technical Field

The utility model belongs to the technical field of the fork truck technique and specifically relates to a fork truck electronic scale is related to.

Background

Fork trucks are industrial handling vehicles, and refer to various wheeled handling vehicles that perform handling, stacking, and short-distance transport operations on piece pallet goods.

When loading in the logistics industry, goods need to be weighed by a wagon balance firstly, then loaded, special personnel are needed to record data, and the loading amount of one wagon can be known after the data are added, so that overload is prevented, and the efficiency is low, and time and labor are consumed; moreover, when goods are placed at a high position of the warehouse, if the weight of the goods is too large and exceeds the bearing capacity of the goods shelf, accidents can be caused; in factory workshops, some bulk materials or large-sized goods are inconvenient to weigh by using a wagon balance.

At present, some forklifts are used for weighing in the market, the weighing mode is that a fork forks a cargo, a driver starts to weigh and read data when pulling a stop lever, an instrument in the forklift is used for pulling the stop lever, the maximum value in a period from the moment when the fork lifts to the moment when the fork lifts is stable, but when some drivers operate, the stop lever needs to be pulled to lift when the cargo is dug, the accelerator is also increased to a large extent, the instant impact force of suddenly increasing the accelerator is large, the number of the forklift is not accurate, so that the forklift driver needs to lift the fork to leave the ground, and then the fork lifts for 3 seconds at a constant speed by a small accelerator to automatically obtain the maximum value of the cargo weight, so that the accurate value of the cargo weight can be obtained, but the operation requirement on the driver is excessive, the operation level of the driver directly influences the precision of the number taking of an electronic scale, and the factor of artificial interference is too large, this limits its use.

Therefore, how to solve the technical problems that the forklift electronic scale in the prior art is greatly influenced by the operation level of a driver and the measurement precision is low becomes an important technical problem to be solved by the personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fork truck electronic scale, the fork truck electronic scale who has solved among the prior art receives driver's operation horizontally influences great, technical problem that measurement accuracy is low. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a fork truck electronic scale sets up on fork truck, include: a load cell for measuring the weight of the cargo; the position sensor is arranged on the outer gantry and comprises a first induction contact and a second induction contact which are vertically arranged; the induction sliding block is used for triggering the first induction contact and the second induction contact and is fixedly connected with the fork assembly; and the weighing controller is in communication connection with the weighing sensor and the position sensor.

Preferably, a vertical distance value between the first sensing contact and the second sensing contact is a fixed value.

Preferably, the vertical distance value between the first sensing contact and the second sensing contact is 50 mm-100 mm.

Preferably, the weighing controller comprises a touch panel arranged in the cab.

Preferably, the weighing controller is in communication connection with a server.

Preferably, the load cell is arranged at the end of a chain in the outer gantry.

Preferably, the weighing controller is in communication connection with the printer.

Preferably, the weighing sensor is a U-shaped sensor.

Preferably, the weighing sensors are provided with at least two weighing sensors which are respectively and correspondingly arranged at the tail end of the chain.

Preferably, the position sensor is a proximity sensor.

The utility model discloses compare in prior art and have following beneficial effect:

(1) the utility model discloses a set up weighing sensor, position sensor, response slider and weighing control appearance on fork truck, surely get a height and carry out the measurement of speed and weight, and rectify through weighing control appearance, in the actual weighing process, the driver need not master the size of throttle excessively, whether speed is fast or not at the uniform velocity, can carry out dynamic metering weighing, greatly reduced the influence of driver operation level weighing sensor measurement accuracy, control error within one percent range, accord with the accuracy requirement of the state to the level four balance, it is greatly convenient to the loading and prevent the goods overload, in this way, neither influence the loading efficiency of driver, can weigh through weighing sensor and carry out the automatic accumulation through weighing control appearance again, let the driver can accurately master the load capacity again, it is great to solve the electronic scale among the prior art and influenced by driver's operation level fork truck, the measurement precision is low.

(2) The utility model discloses direct mount is on fork truck, and the in-process automatic weighing who lifts or descend at the fork adds up, can simply weigh in time bulk cargo or major possession goods fast, and work flow such as the ground pound of having significantly reduced and artificial record to can learn the load capacity of goods in real time on weighing control appearance, and, just can acquire goods weight earlier before putting the goods, greatly reduced the emergence of the overload condition.

(3) The fixed end that sets up the chain in outer portal of weighing sensor, the weight of goods passes through the chain and transmits for weighing sensor, compares in installing weighing sensor inside the fork, the utility model discloses an installation can reduce weighing sensor's mechanical wear, and fault rate greatly reduced and cost are lower.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of the positions of various components of an electronic scale for a forklift truck according to an embodiment of the present invention;

FIG. 2 is a diagram illustrating the relationship between the fork lifting height and the load cell output provided by an embodiment of the present invention;

fig. 3 is a schematic position diagram of a position sensor and an induction slider according to an embodiment of the present invention;

fig. 4 is a schematic position diagram of a load cell provided by an embodiment of the present invention;

fig. 5 is a schematic force diagram of a weighing sensor provided in an embodiment of the present invention;

fig. 6 is an internal schematic view of a load cell according to an embodiment of the present invention.

FIG. 1-load cell; 2-a position sensor; 3-induction slide block; 4-weighing control instrument; 5-a chain; 6-screw rod; 7-bearing plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An object of the utility model is to provide a fork truck electronic scale, the fork truck electronic scale who has solved among the prior art receives driver's operation horizontally influences great, technical problem that measurement accuracy is low.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1-4, the utility model provides a fork truck electronic scale, including weighing sensor 1, position sensor 2, response slider 3 and weighing control appearance 4, position sensor 2 fixed connection is on outer portal, and position sensor 2 includes along the first response contact and the second response contact of vertical setting. The induction sliding block 3 is fixedly connected with the fork assembly and used for triggering the first induction contact and the second induction contact to timely obtain the time when the corresponding position passes through in the lifting or descending process of the fork. The fork assembly may include a fork and a fork carriage that move in unison. Weighing sensor 1 and position sensor 2 all with weighing controller 4 communication connection, weighing sensor 1 installs on fork truck, can lift or when descending at fork truck automatic weighing and with the weight information transfer who records to weighing controller 4.

So set up, the user can freely decide on the fork truck outer mast and get a highly fixed position sensor 2 that sets up, other times are not counted heavily, when the fork drives response slider 3 when position sensor 2's first response contact, weighing control appearance 4 begins the count, when the fork drives response slider 3 and reachs the second response contact, weighing control appearance 4 finishes the count, distance value between first response contact and the second response contact is known, the fork drives response slider 3 and has surveyed through the time difference between first response contact and the second response contact, can reachd the velocity value of this high position response slider 3.

The utility model discloses during the first use, at first carry out zero calibration, when the fork is empty promptly, the user can use different throttle to lift many times to the fork from little to big, be about to the throttle and divide into a plurality ofly by little to big, the user once lifts with a certain throttle, and then lift many times respectively with the throttle by little to big, position sensor 2 measures the time of response slider 3 when should predetermineeing the height and transmits it to weighing control appearance 4, weighing control appearance 4 records that the weight value of weighing sensor 1 when should predetermine the height is the zero-bit with the corresponding velocity value under a plurality of different throttle, zero setting promptly, reduce initial stage service error.

Then, the fork forks the weights to lift different accelerographs for a plurality of times from small to large, namely the accelerographs are divided into a plurality of accelerographs from small to large, a user lifts one time by using one accelerograph, then the accelerator from small to large is respectively used for lifting for a plurality of times, the weighing controller 4 records the weight value of the weighing sensor 1 at the preset height and the speed values corresponding to a plurality of different accelerators, the weighing controller 4 defaults that the weight value of the weighing sensor 1 corresponding to any speed value measured at the moment is the measured weight value of the weight at the speed value, at the moment, at this speed, the proportional value between the measured weight value of the weight measured by the weighing sensor 1 and the actual weight value of the weight forms correction information, the correction information is information used in the operation process of the weighing controller 4, and the information actually displayed by the weighing controller 4 is the actual weight value of the weight after being processed according to the correction information. It should be noted here that, during zero calibration and weight calibration, the weighing controller 4 records the time when various throttles pass through the position sensor 2, and the finer the throttle section is, the more the lifting times are, and the more accurate the finally obtained weighing data is.

And finally, after the weighing controller 4 stores and records all the information, a driver can use different accelerators to lift and weigh when actually weighing, and the weighing controller 4 can automatically call correction information at the speed of the accelerator to automatically match an accurate weight value. For example, if the weight is calibrated, the actual weight of the weight is 10 kg, and the measured weight of the weight measured by the weighing sensor 1 at a certain speed is 9.5 kg, when the driver actually weighs and lifts with the accelerator, and the weighing controller 4 obtains a corresponding speed value according to the information transmitted by the position sensor 2, the weighing controller 4 can directly call the correction information at the speed, that is, when the driver actually weighs and lifts with the accelerator, the measured weight of the weighing sensor 1 at the speed is 95 kg, and after the weighing sensor 1 processes according to the correction information, the actual weight of the goods is automatically matched and displayed as 100 kg. The utility model discloses direct mount is on fork truck, and the in-process that lifts or descends at the fork all can automatic weighing and add up, can simply weigh in time bulk cargo or major possession goods fast, and work flow such as the ground pound of having significantly reduced and artificial record to can learn the load capacity of goods in real time on weighing control instrument 4, and, just can acquire goods weight earlier before putting the goods, greatly reduced the emergence of the overload condition.

Meanwhile, the utility model measures the speed and the weight by determining a height, and corrects the height by the weighing controller 4, during the actual weighing process, the driver does not need to master the size of the accelerator excessively, can carry out dynamic metering weighing regardless of the speed and whether the speed is constant, greatly reduces the influence of the driver on the measurement precision of the horizontal symmetrical retransmission sensor 1, controls the error within a hundredth range, meets the national requirement on the accuracy of the four-level scale, the intelligent electronic weighing system has the advantages that great convenience is brought to loading and cargo overload prevention, so that the loading efficiency of a driver is not influenced, the weighing can be realized through the weighing sensor 1, automatic accumulation can be realized through the weighing controller 4, the driver can accurately master the loading capacity, and the technical problems that the forklift electronic scale in the prior art is greatly influenced by the operation level of the driver and the measuring precision is low are solved.

It should be noted that, in practical use, it is found that the force value F of the load cell 1 has a functional relationship with the fork material weight value W, that is: and the output force value F of the weighing sensor 1 is not only related to the material weight value W, but also related to the fork angle, the acceleration of the direction and the like, namely F is a multivariate function, wherein the value range of F can be 0.8-1.3. The basic principle of the utility model is that the weight value W of material on the fork is indirectly obtained through the value of exerting oneself F that measures weighing sensor 1, and position sensor 2's high H is fixed, only needs to measure through position sensor 2's speed T, and the weight calculation relational expression of material is visible as: w is Tx F H, which can refer to the same material weight value W shown in fig. 2, and the output value F of the load cell 1 changes in different proportions at different speeds and different positions and heights H, and at the same height and different speeds, the output value F of the load cell 1 changes in different proportions, and the weighing controller 4 calibrates the weights to determine the proportional value of the correction information at different speeds. The detailed structure of the weighing controller 4 is similar to that of the prior art and is not described herein again.

As the embodiment of the utility model provides an optional implementation mode, vertical distance value between first response contact and the second response contact is the fixed value, keep the distance value between first response contact and the second response contact unchangeable promptly in weighing measurement process, in order to reduce the influence of measuring altitude variation to measurement accuracy, it is here to explain that, because the power that the chain 5 was transmitted to the high fork of difference is different, because external tension and frictional force are along with the rising of height, the power that chain 5 received is bigger and bigger, but at the same height, weighing sensor 1 transmits the weight value that gives weighing controller 4 and is the same, consequently, decide on fork truck outer gantry and take a height fixed and set up position sensor 2 and can reduce the influence of altitude variation symmetry retransmission sensor 1 measured value.

Further, the range of the vertical distance value between the first sensing contact and the second sensing contact is 50 mm-100 mm, preferably, the vertical distance value between the first sensing contact and the second sensing contact is 80mm, and the distance value is a constant and can be selected within the range in actual use.

Referring to fig. 1, as the embodiment of the utility model discloses optional, the control appearance 4 that weighs includes touch panel, and touch panel sets up in the driver's cabin, can supply the driver to operate in real time, but multiple information direct input, but like driver, goods name, motorcycle type, car number, company's name one-key formula operation, show more directly perceived, and human-computer interaction is more convenient. The main control component in the weighing controller 4 can be but is not limited to Siemens S7-200 series PLC, and the operation is stable and reliable.

As the utility model discloses optional embodiment, weighing control appearance 4 and server communication connection, weighing control appearance 4 can be provided with GPS signal receiver promptly, can transmit weight information for the high in the clouds of server through the 4G network very conveniently to make the computer in the company receive weighing information in real time, computer and cell-phone can look over in real time through the server.

Referring to fig. 4, as the embodiment of the utility model provides an optional implementation mode, chain 5's end in outer portal is connected to weighing sensor 1 fixed connection, specifically, chain 5 that fork truck's hoisting mechanism used is plate chain 5, it walks around the sprocket on portal upper portion in the fork truck, one end is connected on the fork frame, the other end runs through and is connected with weighing sensor 1 behind the chaining seat of outer portal lower part, on the portal in the lift cylinder promotes, during the down motion, fork truck chain 5 drives fork frame and goods lift, fall, so that fork truck realizes goods loading and unloading, the weight of goods passes through chain 5 and transmits for weighing sensor 1, compare in installing weighing sensor 1 inside the fork, the utility model discloses an installation can reduce weighing sensor 1's mechanical wear, fault rate greatly reduced and cost are lower.

Further, weighing sensor 1 is provided with at least two and sets up respectively in the end of

chain

5, and 5 ends of arbitrary chain of fork truck all can correspond promptly and be provided with a weighing sensor 1, and all with 4 communication connection of weighing control appearance, all can carry out dual measurement to the goods weight of this predetermineeing high department promptly, avoid only setting up single weighing sensor 1 and damage the back, influence the measurement.

As the embodiment of the utility model provides an optional implementation mode, weighing control appearance 4 and printer communication connection to in print record data. Wherein, the printer can be a micro printer arranged in the shell of the weighing control instrument 4, and is convenient to use.

Referring to fig. 5-6, as the embodiment of the present invention can be selected, the weighing sensor 1 is a U-shaped sensor, the occupied space is small, and the applicable forklift range is wide. Wherein, the screw rod 6 of the weighing sensor 1 can penetrate through the bearing plate 7 and then is connected with the tail end of the chain 5.

As the embodiment of the utility model provides an optional implementation mode, position sensor 2 is proximity sensor, and when response slider 3 was close to rather than setting for the distance promptly, position sensor 2 just can send actuating signal, and position sensor 2 need not to be in direct contact with response slider 3, and optionally, position sensor 2 can be but not limited to for the electromagnetic type, has reduced because of the measuring error that mechanical wear caused.

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a fork truck electronic scale, sets up on fork truck, its characterized in that includes:

a load cell (1) for measuring the weight of the load;

the position sensor (2) is arranged on the outer gantry and comprises a first induction contact and a second induction contact which are vertically arranged;

the induction sliding block (3) is used for triggering the first induction contact and the second induction contact and is fixedly connected with the fork assembly;

and the weighing controller (4) is in communication connection with the weighing sensor (1) and the position sensor (2).

2. The forklift electronic scale of claim 1, wherein a vertical distance value between the first inductive contact and the second inductive contact is a fixed value.

3. The forklift electronic scale according to claim 2, wherein a vertical distance value between the first sensing contact and the second sensing contact is 50mm to 100 mm.

4. Forklift electronic scale according to claim 1, characterized in that the weighing control instrument (4) comprises a touch panel arranged in the cab.

5. Forklift electronic scale according to claim 1, characterized in that the weighing control unit (4) is in communication connection with a server.

6. Forklift electronic scale according to claim 1, characterized in that the load cell (1) is arranged at the end of the chain (5) in the outer gantry.

7. Forklift electronic scale according to claim 1, characterized in that the weighing control unit (4) is in communication connection with a printer.

8. Forklift electronic scale according to claim 1, characterized in that the load cell (1) is a U-shaped structure sensor.

9. Forklift electronic scale according to claim 6, characterized in that the load cell (1) is provided with at least two and respectively arranged in correspondence with the chain (5) ends.

10. Forklift electronic scale according to claim 1, characterized in that the position sensor (2) is a proximity sensor.