Explosion-proof and intrinsically-safe variable-frequency speed-regulation control box body for driving and anchoring all-in-one machine

Abstract

The utility model discloses an explosion-proof and intrinsically safe frequency conversion speed regulation control box body for a digging and anchoring all-in-one machine, a main cavity and a wiring cavity are arranged in the box body, the main cavity is divided into a main control cavity, a frequency conversion cavity, a reactor cavity and a transformer cavity through cooling partition plates, and wire passing channels are arranged on the cooling partition plates. According to the utility model, a mainstream single control box or a control box body and a variable frequency speed regulation box body are integrated into a variable frequency speed regulation and control integrated box body, so that the control function is enhanced, and at the same time, the cable passing between the cavities inside the main cavity is realized. Cable connection between the electric control box bodies is greatly reduced, and fault points and installation workload are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mining equipment, in particular to a flameproof and intrinsically safe variable frequency speed regulation control box body for an integrated digging and anchoring machine. Background Art

[0002] Domestic integrated digging and anchoring machines are gradually developing in the direction of intelligence and complete sets. The technical level of integrated digging and anchoring machines has been improved to a considerable extent, and there have been great progress in function, structure and automation. Therefore, the scope of application of rapid excavation equipment, especially integrated digging and anchoring machines, is becoming wider and wider. The explosion-proof and intrinsically safe inverter speed control box for integrated digging and anchoring machines is the core component of the control unit of the integrated digging and anchoring machine. The high and low voltage electrical control components are integrated inside. The structure, layout and heat dissipation effect of the box directly affect the overall stability and practical effect of the entire integrated digging and anchoring machine. There are many high and low voltage and variable voltage and frequency conversion equipment inside the box. The voltage level and AC and DC of the equipment in the main circuit and control circuit are also different, mainly AC 1140V, 380V, 220V, 36V, DC 24V and 12V, etc. Various electrical interferences will be generated between equipment with different frequencies and voltages. Therefore, the reasonable layout of the box structure affects the practical life of the equipment and the installation and maintenance costs.

[0003] At present, the electrical control units of mainstream integrated drilling and anchoring machines on the market mainly adopt non-frequency conversion speed control or frequency converter speed control and control, which are installed in two boxes. Various devices inside the boxes are mixed in the same space. There are no effective anti-interference measures, and the control functions are limited and cannot meet the control function requirements of intelligent development. There are many cables and water pipes outside the box, and the installation and maintenance costs are high. Utility Model Content

[0004] The purpose of the utility model is to provide a flameproof and intrinsically safe variable frequency speed regulation control box body for an integrated anchoring and digging machine, which integrates the mainstream single control box or the two boxes of control and variable frequency speed regulation into a box that integrates variable frequency speed regulation and control, thereby enhancing the control function and greatly reducing the cable connections between the electric control boxes, thereby reducing the failure points and installation workload.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] The utility model discloses a flameproof and intrinsically safe variable frequency speed control box body for an integrated anchoring and digging machine, wherein the interior of the box body comprises a main cavity and a wiring cavity, the main cavity is divided into a main control cavity, a frequency conversion cavity, a reactor cavity and a transformer cavity by a cooling partition, a wire passage is provided on the cooling partition, and is used for passing cables between cavities inside the main cavity, the wiring cavity is separated from the main cavity by a through-wall plate, and a wire passage hole is left on the through-wall plate.

[0007] Further, the main cavity also includes a left side plate, a right side plate, a rear plate and a bottom plate, the left side plate and the right side plate are arranged on both sides of the bottom plate, the rear plate is vertically arranged at the rear end of the bottom plate, the through-wall plate is installed on the top of the left side plate and the right side plate, the cooling baffle includes cooling baffle 1, cooling baffle 2 and cooling baffle 3, and cooling baffle 1, cooling baffle 2 and cooling baffle 3 are vertically arranged between the through-wall plate and the bottom plate;

[0008] The wiring chamber includes a wiring chamber left plate, a wiring chamber right plate, a wiring chamber rear plate and a wiring chamber flange. The wiring chamber left plate, the wiring chamber right plate and the wiring chamber rear plate are vertically mounted on the through-wall plate. The wiring chamber rear plate is arranged at the rear ends of the wiring chamber left plate and the wiring chamber right plate. The wiring chamber flange is arranged on the tops of the wiring chamber left plate, the wiring chamber right plate and the wiring chamber rear plate.

[0009] The front ends of the main cavity and the wiring cavity are provided with front flanges.

[0010] Furthermore, cooling water channels are provided inside the bottom plate, cooling baffle 1, cooling baffle 2, cooling baffle 3 and the right side plate.

[0011] Furthermore, the cooling water channels are connected in each plate, and two water channel openings, one for inlet and one for outlet, are provided at the left rear corner of the bottom plate.

[0012] Furthermore, the middle wall plate, the left side plate of the wiring chamber, the right side plate of the wiring chamber and the rear plate of the wiring chamber are provided with cable through holes and cable inlet and outlet holes.

[0013] Furthermore, the wiring cavity of the box is connected to the main cavity for input and output cables through wall terminals and wire guides, and the cable wire guide holes and cable entry and exit holes on the left side panel, right side panel, and rear panel of the wiring cavity connect the external equipment to the wall terminals and wire guides of the wiring cavity through cable introduction devices.

[0014] Furthermore, the wiring cavity, main control cavity, frequency conversion cavity, reactor cavity and outer sides of the transformer cavity inside the box are all provided with cover plates.

[0015] The beneficial effects of the utility model are:

[0016] The utility model integrates the mainstream single control box or the two boxes of control and frequency conversion speed regulation into a box integrating frequency conversion speed regulation and control, which enhances the control function and greatly reduces the cable connection between the electric control boxes.

[0017] All electrical equipment inside the box is installed and connected inside the main cavity. The peripheral equipment is connected to the inside of the box through wall terminals, wire groups and cable reference devices in the wiring cavity. The clear partitions facilitate installation and maintenance.

[0018] The main control circuit components, frequency converter, reactor and traction transformer are placed in the main cavity respectively, and the main circuit functions and the main control circuit are separated separately, which effectively reduces the electrical interference between the main circuits, especially the interference of strong interference sources such as frequency converters on the control circuit.

[0019] The wiring cavity is separated from the main cavity by a penetration plate, and a through-wall wire hole is left on the penetration plate. The electrical connection between the wiring cavity and the main cavity is completed through the through-wall terminal and the wire group. The inner part of the wiring cavity is divided into the main cable wiring area and the control cable wiring area. The cover plates of each wiring area of ​​the wiring cavity are provided with an upper cover plate and a front cover plate, etc. Each functional area is separated separately, which greatly improves the timeliness and safety of installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is a schematic diagram of an embodiment of the utility model.

[0022] Figure 2 This is a top cross-sectional view of an embodiment of the utility model.

[0023] Figure 3 This is a front cross-sectional view of an embodiment of the utility model. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model.

[0025] As shown in the figure, the utility model discloses a flameproof and intrinsically safe variable frequency speed control box body for an integrated anchoring and digging machine, wherein the interior of the box body is a main cavity A and a wiring cavity B, and the main cavity A is divided into a main control cavity 17, a frequency conversion cavity 18, a reactor cavity 19 and a transformer cavity 20 by a cooling partition, and a wire passage 14 is provided on the cooling partition for passing cables between the cavities inside the main cavity A, and the wiring cavity B is separated from the main cavity 1 by a through-wall plate 9, and a wire passage hole is left on the through-wall plate 9.

[0026] The main control circuit components, frequency converter, reactor and traction transformer are placed in the main control cavity 17, frequency converter cavity 18, reactor cavity 19 and transformer cavity 20 respectively, and the main circuit functions and the main control circuit are separated separately, so as to effectively reduce the electrical interference between the main circuits, especially the interference of strong interference sources such as frequency converters to the control circuit.

[0027] The cable passage 14 is used for passing cables between the cavities inside the main cavity.

[0028] In one embodiment of the utility model, the main cavity A also includes a left side plate 2, a right side plate 6, a rear plate 8 and a bottom plate 1, the left side plate 2 and the right side plate 6 are arranged on both sides of the bottom plate 1, the rear plate 8 is vertically arranged at the rear end of the bottom plate 1, the through-wall plate 9 is installed on the top of the left side plate 2 and the right side plate 6, the cooling partition includes a cooling partition 1 3, a cooling partition 2 4 and a cooling partition 3 5, and the cooling partition 1, the cooling partition 2 4 and the cooling partition 3 5 are vertically arranged between the through-wall plate 9 and the bottom plate 1; the main cavity A is welded into a frame structure by parts.

[0029] The wiring chamber B includes a wiring chamber left side plate 10, a wiring chamber right side plate 11, a wiring chamber rear plate 12 and a wiring chamber flange 13. The bottoms of the wiring chamber left side plate 10, the wiring chamber right side plate 11 and the wiring chamber rear plate 12 are vertically installed on the wall penetration plate 9, the wiring chamber rear plate 12 is arranged at the rear ends of the wiring chamber left side plate 10 and the wiring chamber right side plate 11, and the wiring chamber flange 13 is arranged on the tops of the wiring chamber left side plate 10, the wiring chamber right side plate 11 and the wiring chamber rear plate 12; the wiring chamber B is welded into a frame structure by parts.

[0030] The front ends of the main cavity A and the wiring cavity B are flush, so that the front ends of the main cavity A and the wiring cavity B are provided with a front flange 7.

[0031] In an embodiment of the present invention, cooling water channels are provided inside the bottom plate 1 , cooling baffle 1 3 , cooling baffle 2 4 , cooling baffle 3 5 and the right side plate 6 .

[0032] In one embodiment of the utility model, the cooling water channels are connected in each plate, and two water channel openings, one for inlet and one for outlet, are provided at the left rear corner of the bottom plate.

[0033] In one embodiment of the utility model, the middle wall plate 9, the wiring chamber left plate 10, the wiring chamber right plate 11 and the wiring chamber rear plate 12 are provided with cable through holes and cable inlet and outlet holes.

[0034] In one embodiment of the utility model, the wiring cavity of the box body is connected to the main cavity through the wall terminals and the wire group for input and output cables, and the cable wire holes and cable inlet and outlet holes of the left side plate, the right side plate and the rear plate of the wiring cavity connect the external equipment to the wall terminals and wires of the wiring cavity through the cable introduction device. Specifically, the left side plate 10 of the wiring cavity is provided with a power cable introduction device installation hole 21, the middle wall plate 9 is provided with an input wall terminal installation hole 22, an output wall terminal installation hole 23 and a wire group installation hole 25, the rear plate of the wiring cavity is provided with an output cable introduction device installation hole 24, and the wiring cavity is provided with a main cable wiring area 26 and a control cable wiring area 27. The main circuit and the control circuit are separated to reduce interference and improve safety.

[0035] In one embodiment of the utility model, the wiring chamber, main control chamber, frequency conversion chamber, reactor chamber and transformer chamber inside the box are all provided with cover plates on the outside. The cover plates are installed on the front flange 7, which is not shown in the figure. The design of the cover plates and the cover plates installed on the front flange 7 improves the timeliness and convenience of installation and maintenance of different wiring areas.

[0036] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. Flameproof and intrinsically safe variable frequency speed control box for anchoring and digging machine, characterized by: The interior of the box body is a main cavity and a wiring cavity. The main cavity is divided into a main control cavity, a frequency conversion cavity, a reactor cavity and a transformer cavity by a cooling partition. The cooling partition is provided with a wire passage for passing cables between the cavities inside the main cavity. The wiring cavity is separated from the main cavity by a through-wall plate, and a wire passage hole is left on the through-wall plate.

2. The flameproof and intrinsically safe variable frequency speed control box for the anchoring and digging machine according to claim 1 is characterized in that: The main cavity also includes a left plate, a right plate, a rear plate and a bottom plate, the left plate and the right plate are arranged on both sides of the bottom plate, the rear plate is vertically arranged at the rear end of the bottom plate, the through-wall plate is installed on the top of the left plate and the right plate, the cooling baffle includes cooling baffle 1, cooling baffle 2 and cooling baffle 3, and cooling baffle 1, cooling baffle 2 and cooling baffle 3 are vertically arranged between the through-wall plate and the bottom plate; The wiring chamber includes a wiring chamber left plate, a wiring chamber right plate, a wiring chamber rear plate and a wiring chamber flange. The wiring chamber left plate, the wiring chamber right plate and the wiring chamber rear plate are vertically mounted on the through-wall plate. The wiring chamber rear plate is arranged at the rear ends of the wiring chamber left plate and the wiring chamber right plate. The wiring chamber flange is arranged on the tops of the wiring chamber left plate, the wiring chamber right plate and the wiring chamber rear plate. Front flanges are provided at the front ends of the main cavity and the wiring cavity.

3. The flameproof and intrinsically safe variable frequency speed control box for the anchoring and digging machine according to claim 2 is characterized in that: The bottom plate, cooling baffle plate 1, cooling baffle plate 2, cooling baffle plate 3 and the right side plate are all provided with cooling water channels.

4. The flameproof and intrinsically safe variable frequency speed control box for the anchoring and digging machine according to claim 3 is characterized in that: The cooling water channels are connected inside each plate, and two water channel openings, one inlet and one outlet, are provided at the left rear corner of the bottom plate.

5. The flameproof and intrinsically safe variable frequency speed control box for the anchoring and digging machine according to claim 2 is characterized in that: The middle wall plate, the left side plate of the wiring chamber, the right side plate of the wiring chamber and the rear plate of the wiring chamber are provided with cable passing holes and cable inlet and outlet holes.

6. The flameproof and intrinsically safe variable frequency speed control box for the anchoring and digging machine according to claim 5 is characterized in that: The wiring cavity of the box is connected to the main cavity for input and output cables through wall terminals and wire passing groups. The cable wire passing holes and cable inlet and outlet holes on the left side plate, right side plate and rear plate of the wiring cavity connect external equipment to the wall terminals and wire passing holes of the wiring cavity through cable introduction devices.

7. The flameproof and intrinsically safe variable frequency speed control box for the anchoring and digging machine according to claim 1 is characterized in that: Cover plates are arranged on the outsides of the wiring cavity, the main control cavity, the frequency conversion cavity, the reactor cavity and the transformer cavity in the box body.

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