TWI748825B - Carrier with tension warning - Google Patents

Abstract

A carrier with tension warning includes a machine body, an ascend device, a transmission device, and a tension warning device. The machine body includes a seat and a stand rack fixed on the seat. The ascend device is disposed on the machine body and able to ascend and descend along the stand rack. The transmission device is disposed on the stand rack, and includes a transmission belt connected with the ascend device. The tension warning device is disposed on a moving route of the transmission belt, and includes a sensing roller and a sensor. The sensing roller permanently abuts against the transmission belt. The sensor senses a movement variation of the sensing roller in a non-contact manner. When the sensing roller moves, the tension warning device generates a warning signal.

Description

Handling machine with tension warning

The present invention relates to a conveying machine, in particular to a conveying machine with tension warning.

Press, the handling machine is used for moving goods, in order to save manpower.

However, the main structure of the traditional transporter includes a base, a load-bearing mechanism, and a transmission mechanism. The load mechanism is set on the base, and the transmission mechanism is set on the base and connected to the load mechanism. Through the transmission mechanism, the load mechanism can raise and lower relative to the base to facilitate the transportation of goods up and down. However, the transmission mechanism uses belts and pulleys With other structures, the belt has a service life. Once it becomes fatigued, there may be a risk of goods falling along with the breakage, and even cause injury to the people around the transporter. Therefore, how to improve the safety of the transporter? This is one of the problems to be solved by the present invention.

In order to solve the above-mentioned problems, the present invention discloses a conveyor with tension warning, which uses a tension warning device to sense the tension change of the transmission belt. When the tension of the transmission belt changes, such as loosening or breaking, the tension warning device can A warning signal is generated to notify the staff so that the handling operation can be suspended to avoid hazards.

To achieve the above objective, an embodiment of the present invention provides a handling machine with tension warning, which includes a body, a lifting device, a transmission device, and a force warning device. The machine body has a base and a stand fixed to the base; the lifting device is arranged on the machine body and can produce lifting motion along the stand; the transmission device is arranged on the stand, and the transmission device includes a driving component, a transmission belt, and a The first pulley and a second pulley arranged oppositely, the transmission belt is wound between the first pulley and the second pulley, and is connected to the lifting device, the first pulley is in power connection with the driving assembly; and the tension warning device is arranged on the transmission belt On one of the moving paths, the tension warning device includes a sensor roller that is normally pressed against the transmission belt and a sensor. The sensor senses the change in the displacement of the roller in a non-contact manner. When the displacement of the roller is sensed, The tension warning device can generate a warning signal.

Thereby, the sensor of the present invention uses non-contact sensing to sense the displacement change of the roller. When the displacement of the sensing roller changes, the tension warning device can generate a warning signal to notify the staff to temporarily stop the handling operation. In this way, as a safety warning mechanism, hazards can be avoided.

The exemplary embodiments of the present invention are described in detail below with reference to the drawings, and are not intended to limit the technical principles of the present invention to specific disclosed embodiments, and the scope of the present invention is only limited by the scope of the patent application, covering alternatives, modifications and Equivalent.

Please refer to Figures 1 to 6, which is a conveyor 100 with tension warning in the present invention, which includes a body 10, a lifting device 20, a transmission device 30, and a force warning device 40. The present invention uses tension The warning device 40 detects the tension of the transmission device 30, and when the tension changes, it can send a warning signal to notify the staff to avoid possible hazards.

The body 10 has a base 11 and a stand 12 fixed to the base 11. The bottom of the body 10 is provided with wheels 13 so that the back side of the stand 12 is provided with a handle 14 so that the staff can operate the body 10 to move.

The lifting device 20 is installed in the machine body 10 and can generate lifting motions along the stand 12. The lifting device 20 is mainly used to pick up goods and carry out lifting and conveying.

The transmission device 30 is arranged on the stand 12. In the embodiment of the present invention, the transmission device 30 includes a driving assembly 31, a transmission belt 32, a first pulley 33, and a second pulley 34 disposed oppositely. The driving assembly 31 includes a driving motor 311 and a gear box 312, and the driving motor 311 is power connected to the gear box 312. There are two first pulleys 33, which are arranged on the stand 12 adjacent to the base 11 and located on both sides of the gear box 312 for transmission connection. Two second pulleys 34 are provided at one end of the stand 12 away from the base 11. Two transmission belts 32 are arranged side by side and are wound between the first pulley 33 and the second pulley 34, that is, a transmission belt 32 is wound between a set of opposed first pulley 33 and second pulley 34, wherein , The transmission belt 32 is connected to the lifting device 20, whereby the lifting device 20 is operated by the drive motor 311, and the power transmission of the gear box 312, the first pulley 33, the second pulley 34 and the transmission belt 32 can generate a lifting action .

The tension warning device 40 is arranged on a moving path S of the transmission belt 32 to detect the tension of the transmission belt 32 so as to promptly generate a warning according to the tension change. In the embodiment of the present invention, two tension warning devices 40 are provided on each transmission belt 32 respectively. Among them, for the convenience of description, only one tension warning device 40 is used as an example of the detailed structure below. The tension warning device 40 includes a fixed seat 41, a movable part 42, a sensing roller 43, a sensor 44 and an elastic part 45. The movable part 42 carries the sensing roller 43 and is movably disposed on the fixed seat 41. An elastic part 45 is provided between the movable part 42 and the fixed seat 41. Through the elastic part 45, the sensing roller 43 is normally pressed against the transmission belt 32, and The sensor 44 senses the displacement change of the roller 43 in a non-contact manner. In other words, when the displacement of the sensing roller 43 changes, the tension warning device 40 can generate a warning signal to notify the staff.

In another embodiment of the present invention, the sensing roller 43 is pressed along a direction perpendicular to a surface 321 of the transmission belt 32.

As shown in FIGS. 3 to 4, in another embodiment of the present invention, the fixing seat 41 includes a first shell part 411 and a second shell part 412, and the second shell part 412 is integrated in the first shell part 411, The sensor 44 is fixed in the first shell portion 411 of the fixing base 41, one end of the elastic member 45 abuts against the first shell portion 411, and the other end abuts against the movable member 42. A sliding groove 412 a is provided on both sides of the second shell portion 412 for sliding on both sides of the movable member 42. The sensor 44 is a proximity switch, which has a sensing part 441. A wing plate 421 is provided on both sides of the movable part 42 and exposed outside the second shell part 412 and the two sliding grooves 412a. One side of the movable part 42 has An L-shaped sensed portion 422 and the sensing portion 441 are arranged face-to-face in a non-contact manner for sensing. In the embodiment of the present invention, the sensed portion 422 is disposed on one of the wing plates 421 and is exposed outside the second shell portion 412.

In another embodiment of the present invention, the sliding groove 412 a has an inner end and an open end, and a stop 46 is provided on one side of the open end to limit the displacement of the movable member 42. In the embodiment of the present invention, The two wing plates 421 are restricted by the two stoppers 46 so that the sensing roller 43 will not fall out of the second shell portion 412.

In addition, the present invention further includes an electric control box 50 which is electrically connected to the driving motor 311 and the two force warning devices 40. The electric control box 50 is provided with a prompting device (not shown). The electric control box 50 is used for receiving the warning signal and correspondingly generating a warning reminder. The warning reminder is a sound, light, or a combination of sound and light as a reminder.

Therefore, as shown in FIG. 6, when the transmission belt 32 is loosened, the tension of the transmission belt 32 changes at this time, so that the movable member 42 is supported by the elastic member 45, which prompts the sensing roller 43 to be relative to the second The shell 412 is displaced, that is, to the right side of the drawing. In this way, the sensor 44 senses the change in the displacement of the sensing roller 43, so that the tension warning device 40 sends out a warning signal according to the change in displacement to remind the staff. In the embodiment of the present invention, the warning signal is received by the electric control box 50, and corresponding warning reminders are generated accordingly, so that the workers temporarily stop the handling operation and check the transmission belt 32 to avoid harm.

Above, although the present invention is described in a preferred embodiment, those skilled in the art can make various changes in various forms without departing from the spirit and scope of the present invention. The foregoing embodiments are only used to illustrate the present invention, and not to limit the scope of the present invention. All modifications or changes made without violating the spirit of the present invention belong to the scope of the patent application of the present invention.

100: Transporter 10: Body 11: Base 12: Stand 13: wheels 14: handle 20: Lifting device 30: Transmission 31: drive components 311: drive motor 312: Gear Box 32: drive belt 321: Surface 33: The first pulley 34: second pulley S: moving path 40: Tension warning device 41: fixed seat 411: First Shell 412: Second Shell 42: movable parts 43: sensor wheel 44: Sensor 45: Elastic 412a: Chute 421: Wing Board 441: Sensing Department 422: sensed part 46: stop 50: Electric control box

[Figure 1] is a schematic diagram of the appearance of the conveyor with tension warning of the present invention. [Figure 2] is a schematic side view of the conveyor with tension warning of the present invention. [Figure 3] is a schematic diagram of the structure of the tension warning device of the present invention. [Figure 4] is an exploded schematic diagram of the structure of the tension warning device of the present invention. [Fig. 5] is a schematic diagram of the sensing roller of the tension warning device of the present invention being pressed and contacted with the transmission belt. [Figure 6] is a schematic diagram of the displacement change action of the sensing roller of the tension warning device of the present invention.

32: drive belt

321: Surface

40: Tension warning device

411: First Shell

412: Second Shell

412a: Chute

42: movable parts

43: sensor wheel

44: Sensor

45: Elastic

421: Wing Board

441: Sensing Department

422: sensed part

46: stop

S: moving path

Claims (7)

A conveying machine with tension warning, comprising: a body with a base and a stand fixed on the base; a lifting device, which is arranged on the body and capable of generating lifting actions along the stand ; A transmission device is set on the stand, the transmission device includes a drive assembly, a transmission belt, a first pulley and a second pulley arranged opposite, the transmission belt is wound around the first pulley and the first pulley Between two pulleys and connected to the lifting device, the first pulley is in power connection with the drive assembly; and a force warning device is arranged on a moving path of the transmission belt, and the tension warning device includes a normal pressure On the sensing roller of the transmission belt and a sensor, the sensor senses the displacement change of the sensing roller in a non-contact manner, and when the sensing roller is displaced, the tension warning device can generate a warning signal; The tension warning device further includes a fixed seat, a movable part, and an elastic part. The movable part carries the sensing roller and is movably arranged on the fixed seat. The elastic part is arranged between the movable part and the fixed seat to make The sensing roller is normally pressed against the transmission belt; the sensor is fixed in the fixed seat and has a sensing part, and one side of the movable part is provided with a sensed part and the sensing part for non-contact sensing The fixing seat includes a first shell and a second shell, the second shell is combined with the first shell, the sensor is fixed in the first shell, and one end of the elastic member abuts against the The other end of the first shell portion abuts against the movable part, a sliding groove is provided on both sides of the second shell part for sliding on both sides of the movable part, and the sensed part is exposed outside the second shell part outside. The conveying machine with tension warning according to claim 1, wherein the sensed part is L-shaped. The conveyor with tension warning according to claim 1, wherein the two sliding grooves respectively have an inner end and an open end, and one side of the open end is provided with a stopper to limit the displacement of the movable part. The conveyor with tension warning according to claim 3, wherein a wing plate is provided on both sides of the movable part and is exposed outside the second shell part and the two sliding grooves, and the two wing plates are blocked by the two stoppers The position of the element is limited, so that the sensing roller will not fall out of the second shell part; the sensed part is arranged on one of the wings. The carrier with tension warning according to claim 3, wherein the drive assembly includes a drive motor and a gear box, the drive motor is power connected to the gear box, and the two first pulleys are arranged on the stand Adjacent to the base and located on both sides of the gear box for transmission connection, the second pulleys are two and are arranged at the end of the stand away from the base; the transmission belts are two, and the tension warning device is two . The conveying machine with tension warning according to claim 5, wherein the sensor is a proximity switch. The carrier with tension warning as described in claim 6, further comprising an electric control box, which is electrically connected to the drive motor and the two force warning devices, and the electric control box is used to receive the warning signal and generate a corresponding Warning reminder.

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