Traveling device and self-moving plunger pump

Abstract

A traveling device and a self-moving plunger pump. The traveling device comprises a working platform (10) and a traveling assembly, wherein the traveling assembly is arranged below the working platform (10); and a power driving assembly, a plunger pump assembly (20) and a control assembly (30) are provided on the working platform (10). The plunger pump is integrated in the traveling device, such that the plunger pump can autonomously move underground without depending on pulling apparatuses such as rails and winches any more, thereby avoiding the risk of safety accidents such as vehicle rolling and rope breakage during an apparatus pulling process, thus achieving the characteristics of a fast movement turn-around speed and flexible movement, and facilitating an improvement in the production efficiency and a reduction in the production cost.

Description

Walking device and self-moving plunger pump TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of plunger pumps, in particular, to a walking device and a self-moving plunger pump. BACKGROUND

[0002] At present, in the rail roadway of the fully mechanized coal mining face in China, the high-pressure plunger pump equipment train composed of high-pressure plunger pumps, frequency converters, water tanks, filtration systems and the like is mostly placed in the following two ways: (1) through the equipment train mode, that is, the high-pressure plunger pumps, frequency converters, water tanks, filtration systems and the like are fixed on the flat cars by bolts or welding, the flat cars are placed on the tracks laid in the roadway, the flat cars are sequentially connected in head-to-tail, and the flat cars are moved forward by being driven by the winches along the advance of the working face; (2) the high-pressure plunger pumps, frequency converters, water tanks, filtration systems and the like are directly placed on the ground in the coal mine roadway, and large machinery such as a shovel car needs to be used to move the equipment when the equipment is moved, and the equipment is inconvenient to move.

[0003] Among them, if the equipment train mode adopts the track mode, the track needs to be laid, resulting in high cost; the winch needs to be provided with additional power, making the operation inconvenient; in the process of moving the winch, in the roadway with ups and downs, accidents such as rope breaking and car sliding are easy to occur, and the safety hidden danger is great. For the equipment train stored in the fixed position, the coal mining face often extends 5-6 km or even a longer distance, and a large amount of pipelines and control lines need to be laid to transport the high-pressure liquid of the high-pressure plunger pump to the hydraulic supports and coal mining machines and the like of the coal mining face which need to use the high-pressure liquid, and the signals such as the pressure and the equipment state of the coal mining face equipment need to be transmitted back to the control center of the fully mechanized equipment train through the control line, and the laying of the pipelines and the lines causes the cost to increase and the laying period to be long; the longer pipeline transports the liquid, the pressure loss along the pipeline is large, causing resource waste; when the coal mining of a coal mining face is completed, the high-pressure plunger pump station, the frequency converter, the water tank, the filtration system and the like need to be moved to replace the position of the fully mechanized coal mining face, and other machinery such as a shovel car needs to be borrowed to move the high-pressure plunger pump station and the like, which is inconvenient to operate and has a high time cost.

[0004] SUMMARY

[0005] Therefore, the present disclosure aims to provide a walking device and a self-moving plunger pump to solve the technical problems in the prior art that the laying of the track causes high cost when the high-pressure plunger pump is pulled by the equipment train mode; the winch is inconvenient to operate and accidents such as rope breaking and car sliding are easy to occur in the roadway with ups and downs, and the safety hidden danger is great.

[0006] The walking device provided by the present disclosure comprises a working platform and a walking assembly, a power driving assembly for driving the walking assembly is arranged on the working platform, the power driving assembly comprises a hydraulic power device, a reversing device and a driving device, the walking assembly is arranged below the working platform, the walking assembly comprises a hydraulic actuator, a speed changing device and a walking unit, the driving device drives the hydraulic power device to drive the reversing device to perform reversing operation, and the hydraulic actuator drives the walking unit to run through the speed changing device.

[0007] In some embodiments, the walking assembly is two, and the two walking assemblies are arranged on both sides below the working platform and along the length direction of the working platform.

[0008] In some embodiments, the power driving assembly further comprises a filter and a hydraulic oil tank.

[0009] In some embodiments, the reversing device is operated in a manual control and / or remote control mode.

[0010] In some embodiments, a brake is arranged in the speed changing device.

[0011] In some embodiments, the walking unit comprises a track and a driving wheel, the driving wheel is connected with the speed changing device, and the track is arranged on the driving wheel in a wrapping mode.

[0012] In some embodiments, the walking unit is a steel wheel, and the steel wheel is connected with the speed changing device.

[0013] In some embodiments, the hydraulic actuator is a hydraulic motor.

[0014] The self-moving plunger pump provided by the present disclosure comprises a plunger pump assembly and the walking device described in any one of the above.

[0015] In some embodiments, the plunger pump assembly and a control assembly are arranged on the working platform, and the control assembly is used for controlling the operation of the power driving assembly, the plunger pump assembly and the walking assembly.

[0016] The plunger pump integrated with the walking device provided by the present disclosure can realize autonomous movement underground, and no longer relies on track, winch and other pulling and moving devices, thereby solving the risk of safety accidents such as vehicle sliding and rope breaking during the pulling and moving process of the device, and having the characteristics of fast moving turnover speed and flexible movement, thereby facilitating the improvement of production efficiency and the reduction of production cost.

[0017] In order to make the above-mentioned purposes, features and advantages of the present disclosure more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0018] In the drawings, which are not necessarily drawn to scale, like numerals describe similar components throughout the several views. Like numerals having different letter extensions can represent different instances of the component identified by the numerals. The illustrative drawings are intended to illustrate various embodiments of the disclosure and are not intended to limit the disclosure in any way. Same reference numerals in different drawings can identify the same or similar components. Such embodiments are illustrative rather than limiting and are intended to provide examples of the present devices or methods. The present drawings are intended to accommodate changes in design which will become obvious to those of skill in the art upon reading this disclosure. In all the drawings:

[0019] FIG. 1 is a schematic view of a self-moving plunger pump according to the present disclosure;

[0020] FIG. 2 is a schematic view of a self-moving plunger pump according to the present disclosure;

[0021] FIG. 3 is a schematic view of a traveling device according to the present disclosure;

[0022] FIG. 4 is a schematic view of a traveling device according to the present disclosure.

[0023] In the above drawings, like reference numerals can refer to like parts throughout the various figures of the drawings. These embodiments are illustrative rather than limiting in which:

[0024] 1 - hydraulic power device; 2 - reversing device; 3 - drive device; 4 - hydraulic actuator; 5 - combination switch; 6 - track; 7 - drive wheel; 8 - filter; 9 - hydraulic oil tank; 10 - working platform; 20 - plunger pump assembly; 30 - control assembly. DETAILED DESCRIPTION

[0025] Hereinafter, specific embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, but are not limited thereto.

[0026] It is to be understood that various alterations can be made to the embodiments disclosed herein. Therefore, the above description should not be construed as limiting, but merely as exemplification of the embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the disclosure.

[0027] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and, together with the general description of the disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.

[0028] These and other characteristics of the present disclosure will become patently apparent as the description proceeds in conjunction with the accompanying drawings.

[0029] It should also be understood that, although the present disclosure has been described in terms of certain embodiments, and although it is apparent that many other forms of the present disclosure can be implemented, those skilled in the art will readily appreciate that the true scope of the present disclosure is measured by the claims hereinafter.

[0030] The above and other aspects, features and advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0031] Specific embodiments of the present disclosure will be described hereinafter with reference to the accompanying drawings; however, it will be understood that the disclosed embodiments are merely examples of the present disclosure, which can be implemented in various ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present disclosure unnecessarily. Therefore, specific structural and functional details disclosed herein are not intended to limit, but merely as a basis for the claims and a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriate detailed structure.

[0032] It is to be noted that the terms "first", "second", and the like, used in the description and the claims of the present disclosure as well as above description of the drawings, are used to differentiate between similar objects, not necessarily described in a particular sequential or chronological order. It is to be understood that the use of these terms in some contexts can be interchanged with one another, where appropriate, to permit the embodiments of the present disclosure, which are described, to be carried out in sequences other than those illustrated or other than those explicitly described herein. Also, the terms "comprise" and "have," and variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, product, or apparatus that comprises a list of steps or units are not necessarily limited to those steps or units, but can include other not expressly listed steps or units, or additional steps or units inherent to such process, method, product, or apparatus.

[0033] The specification can use phrases such as "in one embodiment", "in another embodiment", "in yet another embodiment", or "in other embodiments", which can refer to one or more of the same or different embodiments of the present disclosure.

[0034] The first embodiment of the present disclosure provides a walking device, which is especially suitable for the working scene of the coal mine underground roadway and used for the autonomous movement of the self-moving plunger pump, and the working of the self-moving plunger pump in the predetermined position is realized through the movement of the walking device. As shown in FIGS. 1-4, the walking device comprises a working platform 10 and a walking assembly arranged below the working platform 10; a power driving assembly, a plunger pump assembly 20 and a control assembly 30 are arranged on the working platform 10, wherein the plunger pump assembly 20 and the control assembly 30 herein can be fixed on the working platform 10 in the bolt fastening manner, for example. The control assembly 30 herein is used for controlling the operation of the power driving assembly, the plunger pump assembly 20 and the walking assembly.

[0035] Further, the power driving assembly is used for driving the walking assembly, which comprises a hydraulic power device 1, a reversing device 2, a driving device 3 and a combination switch 5, wherein the driving device 3 drives the hydraulic power device 1 to drive the reversing device 2 to perform the reversing operation. The hydraulic power device 1 herein adopts a hydraulic pump, for example, the reversing device 2 adopts a reversing valve, for example, the driving device 3 herein is used for driving the working of the hydraulic power device 1, and the driving device 3 adopts a driving motor, for example; the working of the hydraulic power device 1 can drive the reversing device 2 to perform the reversing operation; the combination switch 5 herein is used for controlling the power-on starting and power-off shutdown of the driving device 3, so as to control the working or stopping of the hydraulic power device 1.

[0036] In addition, the power driving assembly further comprises a filter 8 and a hydraulic oil tank 9. The filter 8 herein is used for filtering the hydraulic oil of the hydraulic system in the self-moving plunger pump, so as to ensure the cleanliness of the hydraulic oil, thereby preventing the damage of each hydraulic device due to the pollution of the hydraulic oil and ensuring the normal working of the hydraulic system; the hydraulic oil tank 9 is used for storing the hydraulic oil of the entire hydraulic system, and since it has a large surface area, it can exchange heat with the outside world when the hydraulic oil works, so as to prevent the damage of the hydraulic system due to the temperature rise of the hydraulic oil.

[0037] Further, in the embodiment, the walking assemblies are two, which are arranged on the two sides below the working platform 10, and the walking assemblies are arranged along the length direction of the working platform 10. Each walking assembly comprises a hydraulic actuator 4, a speed changing device and a walking unit, and the hydraulic actuator 4 drives the walking unit to move through the speed changing device. The hydraulic actuator 4 can be a hydraulic motor, which is an executing element of the walking device and can convert the liquid pressure energy into mechanical energy (such as torque and rotating speed) of the output shaft, and the hydraulic motor is used to drive the speed changing device to rotate, and the speed changing device can be a speed reducer, which drives the walking unit to move, so that the self-moving piston pump can move autonomously in the underground tunnel.

[0038] Preferably, the speed changing device has a brake, by which the self-moving piston pump can brake in the tunnel with slope, so as to ensure safe production by avoiding accidents such as vehicle sliding.

[0039] In an embodiment, the walking unit comprises a track 6 and a driving wheel 7, the driving wheel 7 is connected with the speed changing device, and the track 6 is arranged on the driving wheel 7. The driving wheel 7 is provided with gear teeth, the torque output by the hydraulic actuator 4 is reduced by the speed changing device to drive the driving wheel 7 to rotate, the gear teeth on the driving wheel 7 are engaged with the chain on the track 6 to drive the track 7 to rotate through the driving wheel 6, and finally the walking of the walking unit is realized.

[0040] Specifically, the hydraulic power device 1 driven by the driving device 3 is a power unit for realizing the self-movement of the self-moving piston pump, and the kinetic energy of the driving device 3 is converted into the pressure energy or potential energy of the hydraulic oil by the hydraulic power device 1, which can be used to drive the hydraulic actuator 4 to rotate, and the hydraulic actuator 4 drives the driving wheel 7 to rotate, so that the self-movement of the self-moving piston pump can be realized by the walking of the track 6 driven by the driving wheel 7.

[0041] In another embodiment, the walking unit is a steel wheel, which is connected with the speed changing device and can be driven by the hydraulic actuator 4 to rotate, so as to realize the self-movement of the self-moving piston pump.

[0042] Further, the reversing device 2 in the power driving assembly is used to control the flow direction of the hydraulic oil, which can be controlled manually. The reversing device 2 has a valve core, and the rotation direction of the hydraulic actuator 4 is changed by adjusting the working direction of the valve core to switch the oil path direction of the hydraulic oil through the reversing device 2, so as to complete the forward or backward movement of the self-moving plunger pump.

[0043] Further, the reversing device 2 can be switched to a remote control mode, in which the operator can remotely control the working direction of the valve core in the reversing device 2 to control the rotation direction of the hydraulic actuator 4, so as to control the moving direction of the self-moving plunger pump through remote control, which can better ensure the safety of the operator.

[0044] The power driving assembly, the plunger pump assembly 20 and the control assembly 30 are placed on the working platform 10 to realize movement as a device train in the working scene of the coal mine roadway, and the device train is used to realize movement in the roadway of the fully-mechanized coal mining face, which has the advantages of fast turnover and improved production efficiency.

[0045] In other embodiments, other matching devices can be arranged on the walking device by welding or bolt connection, and the matching devices have universality as special equipment for the fully-mechanized coal mining face, for example, can be used on the device train in the fully-mechanized pump station.

[0046] When the self-moving plunger pump needs to be used, the self-moving plunger pump can be moved to a predetermined working site by the walking device and arranged in a train according to the needs. In addition, when the self-moving plunger pump needs to change the working face or move the position, the self-moving plunger pump can be moved to a new working site for work by the walking device.

[0047] The working process of the self-moving plunger pump during self-moving is as follows: taking the walking unit including the track 6 and the driving wheel 7 as an example, first, the combination switch 5 is closed, the driving device 3 is controlled to rotate, the hydraulic power device 1 starts to work, the pressure oil output by the hydraulic power device 1 is filtered through the filter 8, then enters the reversing device 2, and the oil path direction of the hydraulic oil is controlled through the reversing device 2, so as to control the rotation direction of the hydraulic actuator 4, and then the driving wheel 7 is controlled to rotate forward or reverse, and finally the self-moving plunger pump is controlled to move forward or backward to realize self-moving.

[0048] In addition, when the two hydraulic actuators 4 of the two walking assemblies rotate in the same direction at the same time, the two caterpillar belts 6 on the sides of the self-moving plunger pump rotate in the same direction at the same time, so that the self-moving plunger pump as a whole moves forward or backward linearly; when any one of the hydraulic actuators 4 rotates alone or the rotating speeds of the two hydraulic actuators 4 are different, the rotation of the caterpillar belt 6 on one side or the rotation of the caterpillar belts 6 on both sides at different speeds can be realized, so that the turning function of the self-moving plunger pump in movement can be realized.

[0049] The reversing device 2 can also control the opening size of the valve core inside the reversing device 2 by manual or remote control, so as to control the flow of hydraulic oil, and finally realize the adjustment of the rotating speed of the hydraulic actuator 4. Different rotating speeds can be realized by the hydraulic actuator 4, so that the walking speed of the self-moving plunger pump can be adjusted.

[0050] In addition, the hydraulic system of the self-moving plunger pump is configured with related pipelines and joints to ensure the operation of the hydraulic system and realize the walking function of the self-moving plunger pump, so as to achieve the purpose of the transportation equipment.

[0051] The embodiment of the present disclosure can change the pulling and moving mode of the conventional high-pressure plunger pump equipment train, provide power through the hydraulic system, control the rotating direction of the hydraulic actuator through the reversing device, and thus realize movement in the roadway of the fully-mechanized coal mining face.

[0052] The second embodiment of the present disclosure provides a self-moving plunger pump, which comprises the walking device of the above-mentioned embodiments, and the walking device comprises a working platform 10, a plunger pump assembly 20 and a control assembly 30 are arranged on the working platform 10. The control assembly 30 is used for controlling the operation of the plunger pump assembly 20 and the walking assembly.

[0053] The embodiment of the present disclosure integrates the plunger pump with the walking device to realize autonomous movement underground, and no longer relies on the track, winch and other pulling and moving equipment, so that the risk of safety accidents such as vehicle sliding and rope breaking during the pulling and moving of the equipment is solved, and the self-moving plunger pump has the characteristics of fast movement and flexible movement, which is convenient for improving the production efficiency and reducing the production cost.

[0054] In the above-mentioned embodiments of the present disclosure, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0055] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "vertical", "horizontal", "top", "bottom", "lateral", "medial", "superior", "inferior", "proximal", "distal" and derivatives thereof shall relate to the application as it is shown in the drawings and shall be used herein, merely for purposes of the description to facilitate discussion of the concepts embodied by the application. It is submitted with the understanding that such terms are intended to encompass different orientations of the application in its various embodiments or uses consistent with its

[0056] In addition to the above, it is to be understood that the describing relative terms, including "one embodiment", "another embodiment", "an embodiment", etc., are used herein to generally describe various embodiments of the application. The features of the application are not limited to the embodiment(s) described in the above. The use of the same reference symbols in different drawings indicates similar or identical features.

[0057] In the above embodiments, the description of each embodiment is focused on a certain aspect. The description of the aspects not detailed in a certain embodiment can be found in the description of other embodiments.

[0058] The preferred embodiments of the present application have been described above with the specific details. Obviously, the present application can be carried out without the specific details. Thus, the above description is not intended to limit the scope of the present application, and various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the present application.

Claims

1. A walking device, characterized in that: It includes a working platform and a traveling assembly. A power drive assembly for driving the traveling assembly is provided on the working platform. The power drive assembly includes a hydraulic power device, a reversing device and a drive device. The traveling assembly is provided below the working platform. The traveling assembly includes a hydraulic actuator, a speed change device and a traveling unit. The drive device drives the hydraulic power device to drive the reversing device to perform a reversing operation. The hydraulic actuator drives the traveling unit to operate through the speed change device.

2. The walking device according to claim 1, characterized in that: There are two walking assemblies, which are respectively arranged on both sides below the working platform and along the length direction of the working platform.

3. The walking device according to claim 1, characterized in that: The power drive assembly also includes a filter and a hydraulic oil tank.

4. The walking device according to claim 1, characterized in that: The reversing device is operated by manual control and / or remote control.

5. The walking device according to claim 1, characterized in that: A brake is arranged in the speed change device.

6. The walking device according to claim 1, characterized in that: The walking unit includes a crawler belt and a driving wheel. The driving wheel is connected to the speed change device, and the crawler belt is wrapped around the driving wheel.

7. The traveling device according to claim 1, characterized in that: The walking unit is a steel wheel, and the steel wheel is connected to the speed change device.

8. The traveling device according to claim 1, characterized in that: The hydraulic actuator is a hydraulic motor.

9. A self-propelled plunger pump, characterized in that: The utility model comprises a plunger pump assembly and the traveling device according to any one of claims 1 to 8.

10. The self-propelled plunger pump according to claim 9, characterized in that The plunger pump assembly and the control assembly are arranged on the working platform, and the control assembly is used to control the operations of the power drive assembly, the plunger pump assembly and the travel assembly.

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