Internal circulation cooling system and digging and anchoring complete equipment

Abstract

The utility model discloses an internal circulation cooling system, which realizes motor cooling, return oil cooling, drilling and slag flushing as well as dust falling and spraying through the cooperation of a first water cooler, a circulation water path assembly, a cooling water path assembly and a second water cooler, and meanwhile, compared with the prior art, water entering a roadway does not flow through a motor any more, so that the service life of the motor is prolonged. According to the motor cooling device, the cooling pipeline in the motor is prevented from being blocked, the cooling effect on the motor is guaranteed, the motor works stably, the construction efficiency is not affected any more, meanwhile, cooling water for cooling the motor can flow circularly and be reused, the water consumption is reduced, the water resource utilization rate is increased, practicability is high, and the motor cooling device is suitable for wide application and popularization. In addition, the utility model further discloses digging and anchoring complete equipment comprising the internal circulation cooling system.

Description

Technical Field

[0001] The utility model relates to the technical field of anchoring and digging equipment, in particular, to an internal circulation cooling system. In addition, the utility model also relates to an anchoring and digging complete set of equipment comprising the internal circulation cooling system. Background Art

[0002] The complete set of digging and anchoring equipment mainly includes a digging and anchoring machine, a coal mine anchor trolley and a belt transfer machine. The digging and anchoring machine is mainly used for coal breaking and loading processes, and can also carry out anchor and cable support operations on part of the roof and side walls at the same time; the hydraulic anchor trolley for coal mines is mainly used for anchor and cable support operations on the remaining roof and side walls; the belt transfer machine transfers coal to the belt conveyor to complete the continuous transportation process. During the construction process, the complete set of digging and anchoring equipment can realize the synchronous operation of tunnel excavation, support, loading and transportation, reduce the number of construction workers on the working surface, reduce the labor intensity of operators, and improve work efficiency, so it has been widely used.

[0003] However, the cooling water in the cooling system of the current anchor drilling equipment used for motor cooling, oil return cooling, drilling slag flushing and dust reduction spray all comes from the tunnel water inlet. However, since the tunnel water inlet contains mud and water rust, it is easy to clog the cooling pipe during use, resulting in insufficient cooling water flow and poor cooling effect. The motor temperature is too high, causing overheating protection and frequent shutdowns, which seriously reduces construction efficiency. In addition, when the anchor drilling equipment fails to achieve synchronous anchor drilling or dust reduction spray is not used, the motor cooling water will be directly discharged into the tunnel, resulting in a large amount of water resources being wasted. Utility Model Content

[0004] The utility model provides an internal circulation cooling system and a complete set of anchor digging equipment, so as to solve the technical problems of poor cooling effect of the cooling system in the existing complete set of anchor digging equipment, reduced construction efficiency and low water resource utilization.

[0005] According to one aspect of the utility model, an internal circulation cooling system is provided, comprising a first water cooler, a circulating water circuit assembly connected to the first water cooler and used for circulating cooling water to cool the motor, a cooling water circuit assembly connected to the first water cooler and used for entering water into the tunnel to cool the cooling water in the circulating water circuit assembly and to perform spraying and slag flushing, and a second water cooler arranged on the cooling water circuit assembly and used for connecting to a hydraulic oil return pipeline to cool the hydraulic oil.

[0006] As a further improvement of the above technical solution:

[0007] Furthermore, the circulating water circuit assembly includes a cooling water tank, a first circulating pipeline connected to the water outlet end of the cooling water tank and used to connect to the water inlet end of the cooling pipeline inside the motor, a second circulating pipeline connected to the first water cooler and used to connect to the water outlet end of the cooling pipeline inside the motor, a third circulating pipe connected to the first water cooler and connected to the return water end of the cooling water tank, a first ball valve arranged on the first circulating pipeline, and a water pump arranged on the first circulating pipeline.

[0008] Furthermore, the circulating water circuit assembly also includes a first pressure relief pipeline connected to the first circulating pipeline and the cooling water tank respectively, and a first overflow valve arranged on the first pressure relief pipeline.

[0009] Furthermore, the circulating water circuit assembly also includes a first pressure sensor arranged on the first circulating pipeline and arranged corresponding to the water inlet end of the first pressure relief pipeline.

[0010] Furthermore, the circulating water circuit assembly also includes a first filter arranged on the third circulating pipeline.

[0011] Furthermore, the cooling water circuit assembly includes a first cooling pipeline whose water outlet end is connected to the first water cooler and whose water inlet end is connected to the tunnel water inlet, a second cooling pipeline whose water inlet end is connected to the first water cooler and whose water outlet end is used for spraying and slag flushing, a second ball valve arranged on the first cooling pipeline and a second filter arranged on the first cooling pipeline, and the second water cooler is arranged on the second cooling pipeline.

[0012] Furthermore, the cooling water circuit assembly also includes an emergency protection pipeline respectively connected to the first cooling pipeline and the second cooling pipeline, and a check valve arranged on the emergency protection pipeline for opening the emergency protection pipeline under a preset pressure to connect the first cooling pipeline and the second cooling pipeline.

[0013] Furthermore, the cooling water circuit assembly also includes a second pressure relief pipeline whose water inlet end is connected to the first cooling pipeline and whose water outlet end is connected to the tunnel return water, and a second overflow valve arranged on the second pressure relief pipeline.

[0014] Furthermore, the cooling water circuit assembly also includes a second pressure sensor arranged on the first cooling pipeline and arranged corresponding to the water inlet end of the second pressure relief pipeline.

[0015] According to another aspect of the utility model, a complete set of anchoring and digging equipment is provided, which includes the above-mentioned internal circulation cooling system.

[0016] The utility model has the following beneficial effects:

[0017] The internal circulation cooling system of the utility model respectively sets two water circuits of a circulating water circuit component and a cooling water circuit component. The cooling water circuit component cools the first water cooler and the second water cooler through water inlet from the roadway, and the cooling return water of the cooling water circuit component performs dust reduction spraying and drilling and slag flushing. The circulating water circuit component cools the motor through the circulation of cooling water, and the cooling return water of the circulating water circuit component can cool the motor again after being cooled by the first water cooler. The second water cooler is connected to the hydraulic oil return line to cool the hydraulic oil. The scheme realizes motor cooling, oil return cooling, drilling and slag flushing and dust reduction spraying through the coordinated cooperation of the first water cooler, the circulating water circuit component, the cooling water circuit component and the second water cooler. Compared with the prior art, the water inlet from the roadway no longer circulates the motor, thus avoiding blockage of the cooling pipeline inside the motor and ensuring the cooling effect of the motor. The motor works stably and no longer affects the construction efficiency. At the same time, the cooling water for cooling the motor can circulate and be repeatedly utilized, thereby reducing water consumption and improving the utilization rate of water resources. It has strong practicality and is suitable for wide promotion and application.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the piping structure of the internal circulation cooling system of the preferred embodiment of the utility model.

[0021] Legend:

[0022] 100, first water cooler; 200, circulating water circuit assembly; 210, cooling water tank; 220, first ball valve; 230, water pump; 240, first overflow valve; 250, first pressure sensor; 260, first filter; 300, cooling water circuit assembly; 310, second ball valve; 320, second filter; 330, second overflow valve; 340, temperature sensor; 350, pressure gauge; 360, pressure reducing valve; 370, check valve; 380, second pressure sensor; 400, second water cooler. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0024] Figure 1It is a schematic diagram of the piping structure of the internal circulation cooling system of the preferred embodiment of the utility model.

[0025] like Figure 1 As shown, the internal circulation cooling system of this embodiment includes a first water cooler 100, a circulating water circuit assembly 200 connected to the first water cooler 100 and used for circulating cooling water to cool the motor, a cooling water circuit assembly 300 connected to the first water cooler 100 and used for entering water into the tunnel to cool the cooling water in the circulating water circuit assembly 200 and to spray and flush slag, and a second water cooler 400 arranged on the cooling water circuit assembly 300 and used for connecting the hydraulic oil return pipeline to cool the hydraulic oil. Specifically, the internal circulation cooling system of the utility model is provided with two water circuits, namely, a circulating water circuit assembly 200 and a cooling water circuit assembly 300. The cooling water circuit assembly 300 cools the first water cooler 100 and the second water cooler 400 through water inlet from the laneway, and the cooling return water of the cooling water circuit assembly 300 is used for dust suppression spraying and drilling and slag flushing. The circulating water circuit assembly 200 cools the motor by circulating cooling water, and the cooling return water of the circulating water circuit assembly 200 can cool the motor again after being cooled by the first water cooler 100. The second water cooler 400 is connected to the hydraulic oil return pipeline to cool the hydraulic oil. The compressed oil is cooled. This solution cooperates with the first water cooler 100, the circulating water circuit assembly 200, the cooling water circuit assembly 300 and the second water cooler 400. While achieving motor cooling, oil return cooling, drilling slag flushing and dust suppression spraying, compared with the prior art, the water entering the tunnel no longer circulates through the motor, avoiding blockage of the cooling pipeline inside the motor and ensuring the cooling effect on the motor. The motor works stably and no longer affects the construction efficiency. At the same time, the cooling water used to cool the motor can circulate and be reused repeatedly, reducing water consumption and improving water resource utilization. It is highly practical and suitable for wide promotion and application. It should be understood that in the cooling system, the specific structure of the water cooler belongs to the well-known technology of those skilled in the art and will not be elaborated here.

[0026] like Figure 1As shown, in this embodiment, the circulating water circuit assembly 200 includes a cooling water tank 210, a first circulating pipeline connected to the water outlet of the cooling water tank 210 for connecting the water inlet of the motor internal cooling pipeline, a second circulating pipeline connected to the first water cooler 100 for connecting the water outlet of the motor internal cooling pipeline, a third circulating pipe connected to the first water cooler 100 and connected to the return water end of the cooling water tank 210, a first ball valve 220 arranged on the first circulating pipeline, and a water pump 230 arranged on the first circulating pipeline. Specifically, the first circulation control is opened by the first ball valve 220, and the cooling water in the cooling water tank 210 is extracted by the water pump 230, so that the cooling water flows through the first circulating pipeline, the second circulating pipeline, the first water cooler 100 and the third circulating pipeline in sequence, and then flows back to the cooling water tank 210, so that it is cooled by the first water cooler 100 after cooling the motor, so as to realize the circulating flow of the motor cooling water. Optionally, the first ball valve 220 is a manual ball valve to simplify the internal circulation cooling system. It should be understood that the cooling water tank 210 can be cleaned regularly, and the cooling water in the cooling water tank 210 can be replaced regularly to effectively ensure the water quality.

[0027] like Figure 1 As shown, in this embodiment, the circulating water circuit assembly 200 further includes a first pressure relief pipeline respectively connected to the first circulating pipeline and the cooling water tank 210, and a first overflow valve 240 arranged on the first pressure relief pipeline. Specifically, when the water pressure in the first circulating pipeline is too high, the first overflow valve 240 opens the first pressure relief pipeline to return the cooling water in the first circulating pipeline to the cooling water tank 210 through the first pressure relief pipeline for pressure relief, so as to prevent the internal components of the motor from being damaged due to excessive pressure.

[0028] like Figure 1 As shown, in this embodiment, the circulating water circuit assembly 200 also includes a first pressure sensor 250 arranged on the first circulating pipeline and corresponding to the water inlet end of the first pressure relief pipeline. Specifically, the cooling water pressure in the first circulating pipeline is monitored by the first pressure sensor 250. Optionally, the circulating water circuit assembly 200 also includes an alarm electrically connected to the first pressure sensor 250. When the first pressure sensor 250 detects that the cooling water pressure is greater than a preset pressure value, the alarm sends a warning signal to remind the operator. Optionally, the circulating water circuit assembly 200 also includes a controller electrically connected to the first pressure sensor 250. When the first pressure sensor 250 detects that the cooling water pressure is greater than a preset pressure value, the controller controls the anchor digging equipment to shut down.

[0029] like Figure 1As shown, in this embodiment, the circulating water circuit assembly 200 further includes a first filter 260 arranged on the third circulating pipeline. Specifically, the impurities of the cooling water in the third circulating pipeline are filtered by the first filter 260 to ensure that the water quality meets the use requirements. Optionally, the first filter 260 is a Y-type filter.

[0030] like Figure 1 As shown, in this embodiment, the cooling water circuit assembly 300 includes a first cooling pipeline whose water outlet is connected to the first water cooler 100 and whose water inlet is connected to the water inlet of the roadway, a second cooling pipeline whose water inlet is connected to the first water cooler 100 and whose water outlet is used for spraying and slag flushing, a second ball valve 310 arranged on the first cooling pipeline, and a second filter 320 arranged on the first cooling pipeline, and the second water cooler 400 is arranged on the second cooling pipeline. Specifically, the first cooling pipeline is opened by the second ball valve 310, so that the water in the roadway is sequentially passed through the first cooling pipeline, the first water cooler 100, the second cooling pipeline, and the second water cooler 400, and the cooling return water is sprayed and slag flushed, and the impurities in the water in the roadway are filtered through the second filter 320 to ensure that the water quality meets the requirements as much as possible. Optionally, the second ball valve 310 is an electric ball valve, which can adaptively adjust the opening of the first cooling pipeline according to the working power of the anchor drilling equipment, so that the opening of the first cooling pipeline is appropriate, thereby ensuring the water resource utilization and cooling effect at the same time. When the opening of the first cooling pipeline is too large, it is easy to cause water resource waste; when the opening of the first cooling pipeline is too small, the cooling effect is poor and the hydraulic oil temperature is high. Optionally, the cooling water circuit assembly 300 also includes a temperature sensor 340 arranged on the second cooling pipeline, and the temperature of the tunnel return water is detected by the temperature sensor 340. When the detection value exceeds the set value, it can be inferred that the motor or hydraulic oil is not fully cooled. At this time, it is necessary to shut down and troubleshoot to ensure the normal operation of the equipment. Optionally, the cooling water circuit assembly 300 also includes a pressure gauge 350 arranged on the first cooling pipeline, and the pressure gauge 350 displays the tunnel inlet pressure in real time. Optionally, the cooling water circuit assembly 300 further includes a pressure reducing valve 360 ​​arranged on the first cooling pipeline, and the maximum pressure of the water entering the first water cooler 100 is controlled by the pressure reducing valve 360 ​​to prevent the water pressure from being too high and damaging the first water cooler 100 and the second water cooler 400, and to avoid oil mixing between the hydraulic oil and the cooling water. Optionally, the second filter 320 is a Y-type filter.

[0031] like Figure 1As shown, in this embodiment, the cooling water circuit assembly 300 also includes an emergency protection pipeline connected to the first cooling pipeline and the second cooling pipeline respectively, and a check valve 370 arranged on the emergency protection pipeline for opening the emergency protection pipeline at a preset pressure to connect the first cooling pipeline and the second cooling pipeline. It should be understood that as the cooling water circuit assembly 300 works for a long time, the first water cooler 100 may be blocked by accumulated impurities. At this time, the water pressure in the first cooling pipeline increases, and the check valve 370 opens the emergency protection pipeline at a preset pressure to connect the first cooling pipeline and the second cooling pipeline, so that the water in the lane flows through the second water cooler 400 to cool the hydraulic oil urgently. It should be understood that if the hydraulic oil works at a high temperature for a long time, it will cause the seals in the hydraulic system to age quickly, which is easy to cause leakage in the hydraulic system and affect the working efficiency of the hydraulic system.

[0032] like Figure 1 As shown, in this embodiment, the cooling water circuit assembly 300 further includes a second pressure relief pipeline whose water inlet end is connected to the first cooling pipeline and whose water outlet end is connected to the lane return water, and a second overflow valve 330 arranged on the second pressure relief pipeline. Specifically, when the water pressure in the first cooling pipeline is too high, the second overflow valve 330 opens the second pressure relief pipeline to discharge the lane inlet water in the first cooling pipeline through the second pressure relief pipeline to prevent the first water cooler 100 from being damaged by excessive pressure.

[0033] like Figure 1 As shown, in this embodiment, the cooling water circuit assembly 300 also includes a second pressure sensor 380 arranged on the first cooling pipeline and corresponding to the water inlet end of the second pressure relief pipeline. Specifically, the cooling water pressure in the first cooling pipeline is monitored by the second pressure sensor 380. Optionally, the cooling water circuit assembly 300 also includes an alarm electrically connected to the second pressure sensor 380. When the second pressure sensor 380 detects that the cooling water pressure is greater than a preset pressure value, the alarm sends a warning signal to remind the operator. Optionally, the cooling water circuit assembly 300 also includes a controller electrically connected to the second pressure sensor 380. When the second pressure sensor 380 detects that the cooling water pressure is greater than a preset pressure value, the controller controls the anchor drilling equipment to shut down.

[0034] The complete set of anchor drilling equipment of this embodiment includes the above-mentioned internal circulation cooling system. Specifically, by adopting the above-mentioned internal circulation cooling system in the complete set of anchor drilling equipment, the motor cooling, oil return cooling, drilling slag flushing and dust suppression spraying are realized, while the blockage of the cooling pipeline inside the motor is avoided and the cooling effect of the motor is guaranteed. The motor works stably and no longer affects the construction efficiency. At the same time, the cooling water used to cool the motor can be circulated and reused repeatedly, which reduces the water consumption and improves the utilization rate of water resources. It is highly practical and suitable for wide promotion and application.

[0035] The above description is only the preferred embodiment 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. An internal circulation cooling system, characterized in that: The invention comprises a first water cooler (100), a circulating water circuit assembly (200) connected to the first water cooler (100) and used for circulating cooling water to cool the motor, a cooling water circuit assembly (300) connected to the first water cooler (100) and used for entering the tunnel to cool the cooling water in the circulating water circuit assembly (200) and to spray and flush slag, and a second water cooler (400) arranged on the cooling water circuit assembly (300) and used for connecting the hydraulic oil return pipeline to cool the hydraulic oil.

2. The internal circulation cooling system according to claim 1, characterized in that: The circulating water circuit assembly (200) comprises a cooling water tank (210), a first circulating pipeline connected to the water outlet end of the cooling water tank (210) and used to connect to the water inlet end of the cooling pipeline inside the motor, a second circulating pipeline connected to the first water cooler (100) and used to connect to the water outlet end of the cooling pipeline inside the motor, a third circulating pipe connected to the first water cooler (100) and connected to the return water end of the cooling water tank (210), a first ball valve (220) arranged on the first circulating pipeline, and a water pump (230) arranged on the first circulating pipeline.

3. The internal circulation cooling system according to claim 2, characterized in that: The circulating water circuit assembly (200) further comprises a first pressure relief pipeline respectively connected to the first circulating pipeline and the cooling water tank (210), and a first overflow valve (240) arranged on the first pressure relief pipeline.

4. The internal circulation cooling system according to claim 3, characterized in that: The circulating water circuit assembly (200) further comprises a first pressure sensor (250) arranged on the first circulating pipeline and arranged corresponding to the water inlet end of the first pressure relief pipeline.

5. The internal circulation cooling system according to claim 2, characterized in that: The circulating water circuit assembly (200) further includes a first filter (260) arranged on the third circulating pipeline.

6. The internal circulation cooling system according to any one of claims 1 to 5, characterized in that: The cooling water circuit assembly (300) comprises a first cooling pipeline whose water outlet is connected to the first water cooler (100) and whose water inlet is connected to the tunnel water inlet, a second cooling pipeline whose water inlet is connected to the first water cooler (100) and whose water outlet is used for spraying and slag flushing, a second ball valve (310) arranged on the first cooling pipeline, and a second filter (320) arranged on the first cooling pipeline, and the second water cooler (400) is arranged on the second cooling pipeline.

7. The internal circulation cooling system according to claim 6, characterized in that: The cooling water circuit assembly (300) further comprises an emergency protection pipeline respectively connected to the first cooling pipeline and the second cooling pipeline, and a check valve (370) arranged on the emergency protection pipeline and used for opening the emergency protection pipeline under a preset pressure to connect the first cooling pipeline and the second cooling pipeline.

8. The internal circulation cooling system according to claim 6, characterized in that: The cooling water circuit assembly (300) further comprises a second pressure relief pipeline whose water inlet end is connected to the first cooling pipeline and whose water outlet end is connected to the tunnel return water, and a second overflow valve (330) arranged on the second pressure relief pipeline.

9. The internal circulation cooling system according to claim 8, characterized in that: The cooling water circuit assembly (300) also includes a second pressure sensor (380) arranged on the first cooling pipeline and arranged corresponding to the water inlet end of the second pressure relief pipeline.

10. A complete set of anchoring equipment, characterized in that: The invention comprises the internal circulation cooling system as described in any one of claims 1 to 9.

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