CN215921900U - Workshop material conveying trolley - Google Patents

Abstract

The utility model discloses a workshop material conveying trolley, which comprises: the system comprises a power supply control module and a travel control module; the power supply control module comprises a frequency converter, an alternating current motor and a transformer assembly, wherein the frequency converter is provided with a wire inlet terminal and a wire outlet terminal, the transformer assembly comprises a first transformer and a second transformer, the first transformer comprises a first output end, the second transformer comprises a second input end and a second output end, the first output end is connected with the second input end, the second output end is connected with the wire inlet terminal, and the wire outlet terminal is connected with the alternating current motor; the stroke control module is connected with first output and second input respectively, and the stroke control module is including the first subassembly that is used for adjusting the forward and removes and the second subassembly that is used for adjusting reverse movement, and first subassembly and second subassembly are connected with the converter respectively. The workshop material conveying trolley provided by the utility model is strong in applicability, high in stability and reliability, and capable of improving the conveying efficiency.

Description

Workshop material conveying trolley

Technical Field

The utility model relates to the technical field of material transportation equipment, in particular to a workshop material transportation trolley.

Background

In a production workshop, in order to improve the material transportation efficiency, a transport trolley is often adopted to transport materials. In the related art, the alternating current contactor is adopted to control the direct current motor to drive the transport trolley, but in the using process, the requirement on passing current is high, the transport trolley is easy to damage due to large current output, the fault rate of the transport trolley is high, the stability is poor, and workshop production is influenced.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the workshop material conveying trolley provided by the utility model has the advantages of high stability, high reliability, low failure rate and capability of improving the conveying efficiency.

The embodiment of the utility model provides a workshop material conveying trolley, which comprises: the system comprises a power supply control module and a travel control module; the power supply control module comprises a frequency converter, an alternating current motor and a transformer assembly, wherein the frequency converter is provided with an incoming line terminal and an outgoing line terminal, the transformer assembly comprises a first transformer and a second transformer, the first transformer comprises a first output end, the second transformer comprises a second input end and a second output end, the first output end is connected with the second input end, the second output end is connected with the incoming line terminal, and the outgoing line terminal is connected with the alternating current motor; the stroke control module respectively with first output with the second input is connected, the stroke control module is including being used for changing the first subassembly that workshop fortune material dolly positive direction removed and being used for changing the second subassembly that workshop fortune material dolly reverse direction removed, first subassembly with the second subassembly respectively with the converter is connected.

The workshop material conveying trolley provided by the embodiment of the utility model at least has the following beneficial effects: the frequency converter, the transformer assembly and the alternating current motor are adopted to drive and control the workshop material conveying trolley, and the voltage is reduced through the transformer to realize power supply to the stroke control module. The incoming line terminal and the transformer subassembly of converter are connected, and outlet terminal is connected with AC motor, and the converter can change the frequency and control AC motor's mode to can cooperate the first subassembly and the second subassembly of stroke control module to adjust AC motor's corotation and reversal, thereby realize the forward movement and the reverse movement of workshop fortune material dolly. Therefore, the workshop material transporting trolley avoids using an alternating current contactor and a direct current motor to drive, and is easy to damage due to overheating of a contact of the alternating current contactor caused by vibration in the operation process because the alternating current contactor and the direct current motor have high requirements on environmental factors, or the workshop material transporting trolley cannot be used due to the fact that an exciting coil of the direct current motor is damaged due to unstable current, and the workshop material transporting efficiency is influenced. The workshop material transporting trolley is driven by the frequency converter and the alternating current motor, so that the running stability and reliability of the workshop material transporting trolley can be improved, the failure rate is reduced, the transportation efficiency is improved, and the maintenance cost is reduced.

According to some embodiments of the utility model, the first component comprises a forward button and a forward relay which are connected, the second component comprises a reverse button and a reverse relay which are connected, the forward relay and the reverse relay are respectively connected with the frequency converter, and the frequency converter is controlled through an electromagnetic relay, so that the stability is improved.

According to some embodiments of the utility model, the forward relay comprises a matched forward electromagnet and a first electromagnetic switch, the reverse relay comprises a matched reverse electromagnet and a second electromagnetic switch, the forward electromagnet is connected with the forward button, the reverse electromagnet is connected with the reverse button, the first electromagnetic switch and the second electromagnetic switch are respectively connected with the frequency converter, and the electromagnet is electrified to control the on-off of the electromagnetic switch, so that the frequency converter is controlled, and the stability is improved.

According to some embodiments of the present invention, the forward relay further includes a third electromagnetic switch and a fourth electromagnetic switch matched with the forward electromagnet, the reverse relay further includes a fifth electromagnetic switch and a sixth electromagnetic switch matched with the reverse electromagnet, the third electromagnetic switch is respectively connected with the forward button, the sixth electromagnetic switch and the forward electromagnet, and the fifth electromagnetic switch is respectively connected with the reverse button, the fourth electromagnetic switch and the reverse electromagnet, so as to implement a self-locking function of the electromagnetic relay and improve stability.

According to some embodiments of the utility model, the third electromagnetic switch is connected in parallel with the forward button; and the fifth electromagnetic switch and the reverse button are connected in parallel, so that the self-locking function of the electromagnetic relay is realized, and the stability is improved.

According to some embodiments of the present invention, the stroke control module further comprises an indication assembly for displaying a stroke direction, the indication assembly comprising a forward indicator light and a reverse indicator light, the forward indicator light being connected in parallel with the forward electromagnet, and the reverse indicator light being connected in parallel with the reverse electromagnet, for a user's convenience.

According to some embodiments of the utility model, the stroke control module further comprises a third component for assisting in changing the forward direction of the workshop material conveying trolley and a fourth component for assisting in changing the reverse direction of the workshop material conveying trolley, the third component comprises a forward auxiliary switch and a forward auxiliary relay which are connected, the forward auxiliary relay is connected with the forward electromagnet, the fourth component comprises a reverse auxiliary switch and a reverse auxiliary relay which are connected, and the reverse auxiliary relay is connected with the reverse electromagnet, so that the stability of stroke control is improved.

According to some embodiments of the present invention, the forward auxiliary relay includes a forward auxiliary electromagnet and a seventh electromagnetic switch, the reverse auxiliary relay includes a reverse auxiliary electromagnet and an eighth electromagnetic switch, the forward auxiliary electromagnet is connected to the forward auxiliary switch, the seventh electromagnetic switch is respectively connected to the sixth electromagnetic switch and the forward electromagnet, the reverse auxiliary electromagnet is connected to the reverse auxiliary switch, and the eighth electromagnetic switch is respectively connected to the fourth electromagnetic switch and the reverse electromagnet, so that stability of stroke control is improved.

According to some embodiments of the utility model, the stroke control module further comprises an emergency stop switch, the emergency stop switch comprises a first communication end and a second communication end, the first communication end is connected with the first output end, and the second communication end is respectively connected with the first assembly and the second assembly, so that the stability of stroke control and the reliability of the workshop material conveying trolley are improved.

According to some embodiments of the utility model, the type of the frequency converter is GD200A-5R5G/7R5P-4, so that the failure rate is reduced, and the use stability of the workshop material conveying trolley is improved.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic illustration of the connection of a shop floor material handling cart according to some embodiments of the present invention;

FIG. 2 is a schematic diagram of the connections of the travel control module of the shop floor material handling cart according to some embodiments of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

The utility model provides a workshop material conveying trolley, which is driven and controlled by a frequency converter, a transformer assembly and an alternating current motor, and the voltage is reduced by a transformer to realize the power supply of a stroke control module. The incoming line terminal and the transformer subassembly of converter are connected, and outlet terminal is connected with AC motor, and the converter can change the frequency and control AC motor's mode to can cooperate the first subassembly and the second subassembly of stroke control module to adjust AC motor's corotation and reversal, thereby realize the forward movement and the reverse movement of workshop fortune material dolly. Therefore, the workshop material transporting trolley avoids using an alternating current contactor and a direct current motor to drive, and is easy to damage due to overheating of a contact of the alternating current contactor caused by vibration in the operation process because the alternating current contactor and the direct current motor have high requirements on environmental factors, or the workshop material transporting trolley cannot be used due to the fact that an exciting coil of the direct current motor is damaged due to unstable current, and the workshop material transporting efficiency is influenced. The workshop material transporting trolley is driven by the frequency converter and the alternating current motor, so that the running stability and reliability of the workshop material transporting trolley can be improved, the failure rate is reduced, the transportation efficiency is improved, and the maintenance cost is reduced.

The embodiments of the present invention will be further explained with reference to the drawings.

The utility model provides a workshop material conveying trolley.

With reference to fig. 1, it can be understood that the workshop material conveying trolley is provided with a power supply control module and a stroke control module. Wherein, the power control module includes a frequency converter a1, an ac motor M1 and a transformer assembly 110, the frequency converter a1 is provided with an inlet terminal 111 and an outlet terminal 112, the ac motor M1 is connected with the frequency converter a1 through the outlet terminal 112, the transformer assembly 110 includes a first transformer KT1 and a second transformer KT2, the first transformer 1 includes a first input terminal KT I1 and a first output terminal T1, the first input terminal I1 is connected to a 380V voltage power supply, the first output terminal T1 outputs 36V voltage, the second transformer KT2 includes a second input terminal I2 and a second output terminal T2, the second input terminal I2 is connected with the first output terminal T1, the second output terminal T2 is connected with the frequency converter a1 through the inlet terminal 111, therefore, the second input terminal I2 is connected with a 36V voltage power supply, the second output terminal T2 outputs 380V voltage, and the voltage is provided for the alternating current motor M1 through the frequency converter A1 to drive the workshop material conveying trolley. The transformer assembly 110 can provide a low-voltage power supply for the stroke control module, the stroke control module is respectively connected with the first output end T1 and the second input end I2, the stroke control module is connected with the frequency converter A1 through the first assembly and the second assembly, so that the frequency is changed through the frequency converter A1 to adjust the working mode of the alternating current motor M1, the first assembly can change the workshop material conveying trolley to move in the positive direction through the frequency converter A1, namely the alternating current motor M1 rotates in the positive direction, and the second assembly can change the workshop material conveying trolley to move in the reverse direction through the frequency converter A1, namely the alternating current motor M1 rotates in the reverse direction, so that the moving direction of the workshop material conveying trolley can be adjusted. In the related art, the transportation trolley generally adopts a low-voltage alternating current contactor to control a direct current motor, so that the situation of large current often occurs in the use process, the contact of the alternating current contactor is damaged due to overheating, or the transportation trolley cannot be used due to the excitation damage of the direct current motor, and the transportation efficiency is influenced. Therefore, the workshop transport trolley is driven by the transformer assembly 110, the frequency converter A1 and the alternating current motor, the use of the direct current motor and the alternating current contactor is avoided, the fault rate is reduced, the reliability and the stability of transportation are improved, the maintenance frequency is reduced, the transportation efficiency is improved, and the maintenance cost is reduced.

With reference to fig. 2, it can be understood that the first assembly includes a forward button SB1 and a forward relay B1 connected thereto, the second assembly includes a reverse button SB2 and a reverse relay B2 connected thereto, the forward relay B1 and the reverse relay B2 are both electromagnetic relays, and the forward relay B1 and the reverse relay B2 are connected to the inverter a1, respectively, and the frequency of the inverter a1 is changed by the forward relay B1 and the reverse relay B2, thereby changing the forward rotation and the reverse rotation of the alternating-current motor M1. For example, when the forward button SB1 is triggered, the forward relay B1 is energized to change the frequency of the inverter A1, thereby causing the AC motor M1 to rotate in the forward direction, i.e., causing the workshop cart to move in the forward direction. For another example, when the reverse button SB2 is activated, the reverse relay B2 is energized to change the frequency of the inverter a1, thereby reversing the ac motor M1, i.e., causing the shop floor cart to move in the reverse direction. Therefore, the workshop material transporting trolley can realize the forward and reverse directions of the control alternating current motor M1 by arranging the forward button SB1, the reverse button SB2, the forward relay B1 and the reverse relay B2, the change of the moving direction of the workshop material transporting trolley is realized, the use of an alternating current contactor and a direct current motor is avoided, the failure rate is reduced, the stability and the reliability are improved, and the transportation efficiency is improved.

It is understood that the forward relay B1 includes a forward electromagnet K1 and a first electromagnetic switch S1, the first electromagnetic switch S1 is matched with the forward electromagnet K1, and when the forward electromagnet K1 is energized, the forward electromagnet K1 attracts the first electromagnetic switch S1, so that the first electromagnetic switch S1 is closed. And the reverse relay B2 comprises a reverse electromagnet K2 and a second electromagnetic switch S2, the second electromagnetic switch S2 is matched with the reverse electromagnet K2, and when the reverse electromagnet K2 is electrified, the reverse electromagnet K2 adsorbs the second electromagnetic switch S2, so that the second electromagnetic switch S2 is closed. The first electromagnetic switch S1 and the second electromagnetic switch S2 are connected to the inverter a1, respectively, so that when the forward electromagnet K1 is energized, the first electromagnetic switch S1 is attracted and the first electromagnetic switch S1 is closed, the frequency of the inverter a1 is changed, and the ac motor M1 is rotated in the forward direction. When the reverse electromagnet K2 is energized, the second electromagnetic switch S2 is attracted so that the second electromagnetic switch S2 is closed, and the frequency of the inverter a1 is changed so that the alternating-current motor M1 is reversed. Therefore, the workshop material transporting trolley can realize the forward and reverse directions of the control alternating current motor M1 by arranging the forward electromagnet K1, the reverse electromagnet K2, the first electromagnetic switch S1 and the second electromagnetic switch S2, the change of the moving direction of the workshop material transporting trolley is realized, an alternating current contactor and a direct current motor are avoided, the failure rate is reduced, the stability and the reliability are improved, and the transportation efficiency is improved.

It is understood that the forward relay B1 further includes a third electromagnetic switch S3 and a fourth electromagnetic switch S4, both the third electromagnetic switch S3 and the fourth electromagnetic switch S4 are matched with the forward electromagnet K1, when the forward electromagnet K1 is energized, the third electromagnetic switch S3 is attracted and closed by the magnetic force, and the fourth electromagnetic switch S4 is switched from the closed state to the open state. The reverse relay B2 further comprises a fifth electromagnetic switch S5 and a sixth electromagnetic switch S6, the fifth electromagnetic switch S5 and the sixth electromagnetic switch S6 are matched with the reverse electromagnet K2, when the reverse electromagnet K2 is electrified, the fifth electromagnetic switch S5 is attracted and closed under the action of magnetic force, and the sixth electromagnetic switch S6 is switched from a closed state to an open state. The forward button SB1 is connected to the third electromagnetic switch S3, the third electromagnetic switch S3 is connected in series to the sixth electromagnetic switch S6, and the sixth electromagnetic switch S6 is connected in series to the forward electromagnet K1. The reverse button SB2 is connected to the fifth electromagnetic switch S5, the fifth electromagnetic switch S5 is connected to the fourth electromagnetic switch S4, and the fourth electromagnetic switch S4 is connected to the reverse electromagnet K2. Therefore, when the forward button SB1 is triggered, the reverse electromagnet K2 is not electrified, the sixth electromagnetic switch S6 is in a closed state, the forward electromagnet K1 is electrified and started, and the third electromagnetic switch S3 is closed under the adsorption action, so that the self-locking function of the forward relay B1 is realized, the forward movement of the workshop material conveying trolley is kept, and the stability of the workshop material conveying trolley is improved. When the reverse button SB2 is triggered, the forward electromagnet K1 is not electrified, the fourth electromagnetic switch S4 is in a closed state, the reverse electromagnet K2 is electrified and started, and the fifth electromagnetic switch S5 is closed under the adsorption action, so that the self-locking function of the reverse relay B2 is realized, and the reverse movement of the workshop material conveying trolley is kept. Therefore, the workshop material conveying trolley has high reliability and high stability, and the conveying efficiency is improved.

It can be understood that the third electromagnetic switch S3 is connected in parallel with the forward button SB1, therefore, when the forward button SB1 is triggered, the reverse electromagnet K2 is not energized, the sixth electromagnetic switch S6 is in a closed state, the forward electromagnet K1 is energized and started, and the third electromagnetic switch S3 is closed by adsorption, so that the self-locking function of the forward relay B1 is realized, even if the forward button SB1 is opened due to misoperation, the workshop material conveying trolley can keep moving forward, and the failure rate is reduced. The fifth electromagnetic switch S5 is connected with the reverse button SB2 in parallel, when the reverse button SB2 is triggered, the forward electromagnet K1 is not electrified, the fourth electromagnetic switch S4 is in a closed state, the reverse electromagnet K2 is electrified and started, and the fifth electromagnetic switch S5 is closed under the adsorption action, so that the self-locking function of the reverse relay B2 is realized, even if the reverse button SB2 is disconnected due to misoperation, the workshop material conveying trolley can keep moving reversely, and the failure rate is reduced. Therefore, the workshop material conveying trolley has high reliability and high stability, the failure rate can be reduced, the maintenance frequency is reduced, and the transportation efficiency is improved.

It will be appreciated that the stroke control module is also provided with an indication assembly for displaying the direction of the stroke, i.e. the operating state of the ac motor M1. The indicating assembly comprises a forward indicating lamp LED1 and a reverse indicating lamp LED2, the forward indicating lamp LED1 is connected with a forward electromagnet K1 in parallel, therefore, the forward indicating lamp LED1 can be electrified with a forward electromagnet K1 at the same time, when the forward electromagnet K1 is electrified, the frequency of a frequency converter A1 is changed, so that an alternating current motor M1 rotates positively, the forward indicating lamp LED1 is electrified and lighted, and the display workshop material conveying trolley moves towards the forward direction. In addition, the reverse indicator light LED2 is connected with the reverse electromagnet K2 in parallel, so the reverse indicator light LED2 can be electrified with the reverse electromagnet K2 simultaneously, when the reverse electromagnet K2 is electrified, the frequency of the frequency converter A1 is changed to enable the alternating current motor M1 to be reversed, the reverse indicator light LED2 is electrified and lighted, and the workshop material conveying trolley is displayed to move in the reverse direction. Therefore, the workshop material conveying trolley prompts the user of the moving direction of the current workshop material conveying trolley through the forward indicator light LED1 and the reverse indicator light LED2, and the workshop material conveying trolley is convenient for the user to use.

It will be appreciated that the travel control module also includes third and fourth components that can assist in changing the direction of movement of the shop floor cart. The third component comprises a forward auxiliary switch SP1 and a forward auxiliary relay which are connected, the fourth component comprises a reverse auxiliary switch SP2 and a reverse auxiliary relay which are connected, the forward auxiliary relay is connected with a forward electromagnet K1, and the reverse auxiliary relay is connected with a reverse electromagnet K2, so that after the forward auxiliary switch SP1 is closed, under the condition that the forward auxiliary relay is switched on, the forward electromagnet K1 can be powered on and started to change the workshop material conveying trolley to move towards the forward direction. Accordingly, when the reverse auxiliary relay is turned on after the reverse auxiliary switch SP2 is closed, the reverse electromagnet K2 can be electrically activated to change the movement of the workshop material conveying trolley in the reverse direction. Therefore, the workshop material conveying trolley can avoid the misoperation of a user and change the moving direction of the workshop material conveying trolley by arranging the third component and the fourth component, the safety and the transportation stability are improved, and the failure rate is reduced.

It is understood that the forward auxiliary relay includes a matched forward auxiliary electromagnet K3 and a seventh electromagnetic switch S7, the reverse auxiliary relay includes a matched reverse auxiliary electromagnet K4 and an eighth electromagnetic switch S8, the forward auxiliary electromagnet K3 is connected with the forward auxiliary switch SP1, the seventh electromagnetic switch S7 is connected between the sixth electromagnetic switch S6 and the forward electromagnet K1, the reverse auxiliary electromagnet K4 is connected with the reverse auxiliary switch SP2, and the eighth electromagnetic switch S8 is connected between the fourth electromagnetic switch S4 and the reverse electromagnet K2. Therefore, when the forward auxiliary switch SP1 is triggered, the forward auxiliary electromagnet K3 is powered on, so that the seventh electromagnetic switch S7 is closed, the sixth electromagnetic switch S6 can be switched on with the forward electromagnet K1, so that the forward electromagnet K1 is powered on, and the workshop material conveying trolley is changed to move towards the forward direction. When the reverse auxiliary switch SP2 is triggered, the reverse auxiliary electromagnet K4 is electrified, so that the eighth electromagnetic switch S8 is closed, the fourth electromagnetic switch S4 can be switched on with the reverse electromagnet K2, and the reverse electromagnet K2 is electrified, so that the workshop material conveying trolley is changed to move in the reverse direction. Therefore, the workshop material conveying trolley can avoid the misoperation of a user and change the moving direction of the workshop material conveying trolley by arranging the forward auxiliary electromagnet K3, the seventh electromagnetic switch S7, the reverse auxiliary electromagnet K4 and the eighth electromagnetic switch S8, so that the safety and the transportation stability are improved, and the failure rate is reduced.

It can be understood that the stroke control module further includes an emergency stop switch ST1, the emergency stop switch ST1 includes a first connection end and a second connection solitary, the first connection end is connected with the first output end T1, the second connection end is respectively connected with the first assembly and the second assembly, therefore, when the emergency stop switch ST1 is disconnected, the first assembly and the second assembly lose power supply, the frequency of the frequency converter a1 cannot be changed to drive the alternating current motor M1, thereby realizing braking or changing the moving direction of the workshop material conveying trolley. The first communicating end of scram switch ST1 can also be connected at first output T1, and the second communicating end is connected at second input I2, and when scram switch ST1 disconnection, first subassembly, second subassembly, converter A1 and alternating current motor M1 lose the power supply, realize the braking function of workshop fortune material dolly, be applicable to different scenes, improve the reliability and the stability of workshop fortune material dolly, reduce the maintenance number of times, improve conveying efficiency.

It can be understood that the frequency converter A1 is GD200A-5R5G/7R5P-4 model. The frequency converter A1 with the model number of GD200A-5R5G/7R5P-4 has a wide speed regulation range, can adapt to different scenes, and can be connected with various frequency setting signals through terminals, namely the forward and reverse rotation of the alternating current motor M1 is controlled through the terminals. In addition, the frequency converter A1 with the model number GD200A-5R5G/7R5P-4 has high stability under the conditions of overvoltage, undervoltage, overcurrent, overload or overheating. Therefore, the workshop material conveying trolley adopts the frequency converter A1 with the model number of GD200A-5R5G/7R5P-4, so that the reliability and the stability can be improved, the failure rate is reduced, and the transportation efficiency is improved.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. A workshop material conveying trolley is characterized by comprising: the system comprises a power supply control module and a travel control module;

the power supply control module comprises a frequency converter, an alternating current motor and a transformer assembly, wherein the frequency converter is provided with an incoming line terminal and an outgoing line terminal, the transformer assembly comprises a first transformer and a second transformer, the first transformer comprises a first output end, the second transformer comprises a second input end and a second output end, the first output end is connected with the second input end, the second output end is connected with the incoming line terminal, and the outgoing line terminal is connected with the alternating current motor;

the stroke control module respectively with first output with the second input is connected, the stroke control module is including being used for changing the first subassembly that workshop fortune material dolly positive direction removed and being used for changing the second subassembly that workshop fortune material dolly reverse direction removed, first subassembly with the second subassembly respectively with the converter is connected.

2. The workshop cart of claim 1, wherein the first assembly includes a forward button and a forward relay connected thereto, and the second assembly includes a reverse button and a reverse relay connected thereto, the forward relay and the reverse relay being connected to the frequency converter, respectively.

3. The workshop material conveying trolley as claimed in claim 2, wherein the forward relay comprises a forward electromagnet and a first electromagnetic switch which are matched, the reverse relay comprises a reverse electromagnet and a second electromagnetic switch which are matched, the forward electromagnet is connected with the forward button, the reverse electromagnet is connected with the reverse button, and the first electromagnetic switch and the second electromagnetic switch are respectively connected with the frequency converter.

4. The workshop material conveying trolley according to claim 3, wherein the forward relay further comprises a third electromagnetic switch and a fourth electromagnetic switch which are matched with the forward electromagnet, the reverse relay further comprises a fifth electromagnetic switch and a sixth electromagnetic switch which are matched with the reverse electromagnet, the third electromagnetic switch is respectively connected with the forward button, the sixth electromagnetic switch and the forward electromagnet, and the fifth electromagnetic switch is respectively connected with the reverse button, the fourth electromagnetic switch and the reverse electromagnet.

5. The workshop dumper as claimed in claim 4, wherein said third electromagnetic switch is connected in parallel with said forward button; the fifth electromagnetic switch is connected with the reverse button in parallel.

6. The workshop transport trolley according to any one of claims 3 to 5, wherein the stroke control module further comprises an indicating assembly for displaying a stroke direction, the indicating assembly comprises a forward indicator light and a reverse indicator light, the forward indicator light is connected in parallel with the forward electromagnet, and the reverse indicator light is connected in parallel with the reverse electromagnet.

7. The workshop material conveying trolley of claim 4, wherein the stroke control module further comprises a third component for assisting in changing the forward direction of the workshop material conveying trolley and a fourth component for assisting in changing the reverse direction of the workshop material conveying trolley, the third component comprises a forward auxiliary switch and a forward auxiliary relay which are connected, the forward auxiliary relay is connected with the forward electromagnet, the fourth component comprises a reverse auxiliary switch and a reverse auxiliary relay which are connected, and the reverse auxiliary relay is connected with the reverse electromagnet.

8. The workshop material conveying trolley according to claim 7, wherein the forward auxiliary relay comprises a forward auxiliary electromagnet and a seventh electromagnetic switch which are matched, the reverse auxiliary relay comprises a reverse auxiliary electromagnet and an eighth electromagnetic switch which are matched, the forward auxiliary electromagnet is connected with the forward auxiliary switch, the seventh electromagnetic switch is respectively connected with the sixth electromagnetic switch and the forward electromagnet, the reverse auxiliary electromagnet is connected with the reverse auxiliary switch, and the eighth electromagnetic switch is respectively connected with the fourth electromagnetic switch and the reverse electromagnet.

9. The workshop cart of claim 1, wherein the travel control module further comprises an emergency stop switch, the emergency stop switch including a first communication port and a second communication port, the first communication port connected to the first output port, the second communication port connected to the first component and the second component, respectively.

10. The workshop dumper according to claim 1, wherein the frequency converter is GD200A-5R5G/7R5P-4 in model number.

Images