Walking device and self-moving type high-pressure plunger pump

Abstract

The utility model provides a walking device and self-moving type high-pressure plunger pump, the walking device comprises a working platform and a walking assembly, the working platform is provided with a power driving assembly, the power driving assembly comprises a hydraulic pump, a reversing valve and a driving motor, the walking assembly is arranged below the working platform, and the hydraulic pump is arranged on the working platform. The walking assembly comprises a hydraulic actuator, a speed reducer and a walking unit, the driving motor drives the hydraulic pump to drive the reversing valve to execute reversing operation, and the hydraulic actuator drives the speed reducer to rotate and drives the walking unit to rotate. According to the embodiment of the utility model, the plunger pump is integrated with the walking device, so that underground autonomous movement can be realized without depending on pulling equipment such as a track and a winch, the risk of safety accidents such as car sliding and rope breaking in the pulling process of the equipment is solved, and the plunger pump has the characteristics of high movement turnover speed and flexibility in movement, and is convenient for improving the production efficiency and reducing the production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pumps, in particular to a walking device and a self-moving high-pressure plunger pump. Background Art

[0002] At present, in the track tunnels of domestic comprehensive mining working faces, high-pressure plunger pump equipment trains composed of high-pressure plunger pumps, frequency converters, water tanks, filtration systems, etc. are mostly placed in the following two ways: (1) through the equipment train method, that is, the high-pressure plunger pumps, frequency converters, water tanks, filtration systems and other equipment are fixed on the flatbed car by bolts or welding. The flatbed car is placed on the track laid in the tunnel. The flatbed cars are connected head to tail in sequence and driven forward by the winch along the advancement of the working face; (2) High-pressure plunger pumps, frequency converters, water tanks, filtration systems and other equipment are placed directly on the ground of the coal mine tunnel. When the equipment is moved, large machinery such as a forklift is required to move the equipment, which makes the equipment inconvenient to move.

[0003] Among them, if the track method is used for the equipment train mode, it is necessary to lay the track, which leads to high cost; if the winch is used for traction, additional power needs to be provided to the winch, which makes the operation inconvenient; during the movement of the traction winch, in the tunnels with ups and downs, accidents such as rope breaking and slipping are prone to occur, which poses a great safety hazard. For equipment trains stored in fixed positions, the coal mining face often extends for 5km-6km or even further, and a large number 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 on the coal mining face that need to use high-pressure liquid. At the same time, the pressure, equipment status and other signals of the coal mining face equipment need to be transmitted back to the control center of the comprehensive mining equipment train through the control line. The laying of pipelines and lines increases the cost and the laying cycle is long; the longer the pipeline is to transport the liquid, the greater the pressure loss along the stroke of the pipeline, resulting in a waste of resources; when a coal mining face is finished, the high-pressure plunger pump station, frequency converter, water tank, filtration system and other equipment need to be moved to change the position of the comprehensive mining face. It is necessary to borrow other machinery such as shovel trucks to move the high-pressure plunger pump station and other equipment, which is inconvenient to operate and has a high time cost. Utility Model Content

[0004] In view of this, the utility model aims to provide a walking device and a self-moving high-pressure plunger pump to solve the technical problems in the prior art of using equipment trains to tow high-pressure plunger pumps, such as high cost of laying tracks; inconvenient operation by winch towing; and easy occurrence of rope breaking, car slipping and other accidents in uphill and downhill lanes, posing great safety hazards.

[0005] On the one hand, the utility model provides a walking device, including a working platform and a walking component. A power drive component is arranged on the working platform, and the power drive component includes a hydraulic pump, a reversing valve and a driving motor. The walking component is arranged below the working platform, and the walking component includes a hydraulic actuator, a reducer and a walking unit. The driving motor drives the hydraulic pump to drive the reversing valve to perform a reversing operation, and the hydraulic actuator drives the reducer to rotate and drives the walking unit to rotate.

[0006] In some embodiments, there are two walking components, and the two walking components are respectively arranged on both sides below the working platform and along the length direction of the working platform.

[0007] In some embodiments, the power drive assembly further includes a filter and a hydraulic oil tank.

[0008] In some embodiments, the reversing valve is operated by manual control and / or remote control.

[0009] In some embodiments, a brake is disposed inside the reducer.

[0010] In some embodiments, the walking unit includes a track and a driving wheel, the driving wheel is connected to the reducer, and the track is covered on the driving wheel.

[0011] In some embodiments, the walking unit is a steel wheel, and the steel wheel is connected to the reducer.

[0012] In some embodiments, the hydraulic actuator is a hydraulic motor.

[0013] On one hand, the utility model provides a self-moving high-pressure plunger pump, comprising a plunger pump assembly and any one of the above-mentioned walking devices.

[0014] In some embodiments, the plunger pump assembly and the control assembly are arranged on the working platform, and the control assembly is used to control the operation of the power drive assembly, the plunger pump assembly and the travel assembly.

[0015] The embodiment of the utility model integrates the plunger pump into the walking device to realize autonomous movement underground, and no longer relies on rails, winches and other pulling and moving equipment, which solves the risk of safety accidents such as slipping and rope breaking during the pulling and moving of the equipment. It also has the characteristics of fast moving turnover speed and flexible movement, which is convenient for improving production efficiency and reducing production costs.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the disclosed embodiments. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method. The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 This is one of the structural schematic diagrams of the self-moving high-pressure plunger pump provided by the utility model;

[0019] Figure 2 This is the second structural schematic diagram of the self-moving high-pressure plunger pump provided by the utility model;

[0020] Figure 3 This is one of the structural schematic diagrams of the walking device provided by the utility model;

[0021] Figure 4 This is the second structural schematic diagram of the walking device provided by the utility model.

[0022] The above drawings include the following reference numerals:

[0023] 1-Hydraulic pump; 2-Reversing valve; 3-Drive motor; 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

[0024] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, but are not intended to limit the present invention.

[0025] It should be understood that various modifications may be made to the embodiments disclosed herein. Therefore, the above description should not be considered as limiting, but only as an example of an embodiment. Other modifications within the scope and spirit of the utility model will occur to those skilled in the art.

[0026] The accompanying drawings, which are included in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, are used to explain the principles of the present invention.

[0027] These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment given as a non-limiting example, with reference to the accompanying drawings.

[0028] It should also be understood that although the present invention has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present invention that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0029] The above and other aspects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0030] Specific embodiments of the present invention are described hereinafter with reference to the accompanying drawings; however, it should be understood that the disclosed embodiments are merely examples of the present invention, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that obscure the present invention. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use the present invention in a variety of ways with substantially any suitable detailed structure.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0032] This specification may use the phrases "in one embodiment", "in another embodiment", "in yet another embodiment" or "in other embodiments", all of which may refer to one or more of the same or different embodiments according to the present invention.

[0033] The first embodiment of the utility model provides a walking device, which is particularly suitable for working scenes in underground mine tunnels and for a self-moving high-pressure plunger pump, and the self-moving high-pressure plunger pump can be operated at a predetermined position by moving the walking device. Figure 1-Figure 4As shown, the walking device includes a working platform 10 and a walking assembly, wherein the walking assembly is arranged below the working platform 10; a power drive 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 here can be fixed to the working platform 10 by bolt fastening, for example. The control assembly 30 here is used to control the operation of the power drive assembly, the plunger pump assembly 20 and the walking assembly.

[0034] Furthermore, the power drive assembly includes a hydraulic pump 1, a reversing valve 2, a drive motor 3 and a combination switch 5, wherein the drive motor 3 drives the hydraulic pump 1 to operate, and the reversing valve 2 is driven to perform a reversing operation through the operation of the hydraulic pump 1; the combination switch 5 controls the power-on start and power-off shutdown of the drive motor 3, thereby controlling the hydraulic pump 1 to operate or stop.

[0035] In addition, the power drive assembly also includes a filter 8 and a hydraulic oil tank 9. The filter 8 is used to filter the hydraulic oil of the hydraulic system in the self-moving high-pressure plunger pump to ensure the cleanliness of the hydraulic oil, so that each hydraulic component is not damaged by hydraulic oil contamination, and the hydraulic system works normally; the hydraulic oil tank 9 is used to store the hydraulic oil of the entire hydraulic system. At the same time, due to the large surface area, the heat generated by the hydraulic oil during operation can be exchanged with the outside world to ensure that the hydraulic system is not damaged due to the increase in hydraulic oil temperature.

[0036] Furthermore, in this embodiment, there are two walking components, and the two walking components are respectively arranged on both sides below the working platform 10. The walking components here are arranged along the length direction of the working platform 10. Each walking component includes a hydraulic actuator 4, a reducer and a walking unit. The hydraulic actuator 4 here can be, for example, a hydraulic motor. The hydraulic motor is the actuator of the walking device and can convert liquid pressure energy into mechanical energy (such as torque and speed) of its output shaft. The hydraulic motor here is used to drive the reducer to rotate, and the reducer drives the walking unit to rotate, so that the self-moving high-pressure plunger pump moves in the underground tunnel.

[0037] Preferably, the reducer here has a brake, through which the self-moving high-pressure plunger pump can be braked in a sloping lane to ensure that accidents such as slipping do not occur, thereby ensuring safe production.

[0038] In one embodiment, the walking unit includes a crawler 6 and a driving wheel 7, wherein the driving wheel 7 is connected to the reducer, and the crawler 6 is covered on the driving wheel 7. The driving wheel 7 is provided with gear teeth, and the torque output by the hydraulic actuator 4 is reduced by the reducer, thereby driving the driving wheel 7 to rotate, and the gear teeth on the driving wheel 7 are meshed with the chain on the crawler 6 for transmission, so that the driving wheel 6 drives the crawler 7 to rotate, and finally realizes the walking of the crawler 7.

[0039] Specifically, the hydraulic pump 1 driven by the drive motor 3 is the power unit that realizes the self-movement of the self-moving high-pressure plunger pump. The kinetic energy of the drive motor 3 is converted into the pressure energy of the hydraulic oil through the hydraulic pump 1. The hydraulic oil here can drive the hydraulic actuator 4 to rotate, and the hydraulic actuator 4 drives the drive wheel 7 to rotate. In this way, the self-movement of the self-moving high-pressure plunger pump can be realized by driving the track 6 to move through the drive wheel 7.

[0040] In another embodiment, the travel unit is a steel wheel, and the steel wheel is connected to the reducer. The steel wheel can be driven to rotate by the hydraulic actuator 4 to achieve self-movement of the self-moving high-pressure plunger pump.

[0041] Furthermore, the reversing valve 2 in the power drive assembly is used to control the flow direction of the hydraulic oil, which can be manually controlled, for example. The reversing valve 2 has a valve core, and the working direction of the valve core is adjusted to switch the oil circuit direction of the hydraulic oil through the reversing valve 2, thereby changing the rotation direction of the hydraulic actuator 4, and finally completing the forward or backward movement of the self-moving high-pressure plunger pump.

[0042] Furthermore, the reversing valve 2 here can be switched to a remote control mode. In the remote control mode, the operator can remotely control the working direction of the valve core in the reversing valve 2 and thereby control the change in the rotation direction of the hydraulic actuator 4, thereby controlling the moving direction of the self-moving high-pressure plunger pump by remote control, which can better ensure the safety of the operator.

[0043] The above-mentioned power drive assembly, the plunger pump assembly 20 and the control assembly 30 are placed on the working platform 10 to realize movement as an equipment train, and are moved in the tunnel of the comprehensive mining working face by means of an equipment train, which has the purpose of fast turnover speed and improved production efficiency.

[0044] In other embodiments, other supporting devices may be arranged on the traveling device by welding or bolting. The supporting devices here are universal as special equipment for comprehensive mining working faces, for example, they can be used on equipment trains in comprehensive mining pumping stations.

[0045] When the self-movable high-pressure plunger pump is needed, the self-movable high-pressure plunger pump of this embodiment can be moved to a predetermined work location by the walking device of this embodiment and arranged in a row as required. In addition, when the self-movable high-pressure plunger pump needs to change the working surface or move the position, the self-movable high-pressure plunger pump can move to a new work location by itself by the walking device to work.

[0046] The working process of the self-moving high-pressure plunger pump involved in the utility model during self-movement is as follows: taking the walking unit including the crawler 6 and the driving wheel 7 as an example, the combination switch 5 is closed, and the driving motor 3 is controlled to rotate so that the hydraulic pump 1 starts working. The pressure oil output by the hydraulic pump 1 is filtered through the filter 8, and then the oil circuit direction of the hydraulic oil is controlled through the reversing valve 2, thereby controlling the rotation direction of the hydraulic actuator 4 so that the driving wheel 7 rotates forward or reversely, and the self-moving high-pressure plunger pump moves forward or backward to achieve self-movement.

[0047] Among them, when the two hydraulic actuators 4 in the two walking components here rotate in the same direction at the same time, the self-moving high-pressure plunger pump can realize the simultaneous rotation of the tracks 6 on both sides in the same direction, so that the self-moving high-pressure plunger pump moves forward or backward as a whole; when any one of the hydraulic actuators 4 rotates alone or the rotation speeds of the two hydraulic actuators 4 are different, the rotation of the track 6 on one side or the tracks 6 on both sides can be realized at different speeds, thereby realizing the turning function of the self-moving high-pressure plunger pump.

[0048] The reversing valve 2 here controls the opening size of the valve core manually or remotely, thereby controlling the flow of hydraulic oil, and finally adjusting the rotation speed of the hydraulic actuator 4. Here, the hydraulic actuator 4 can achieve different speed rotations, so that the self-moving high-pressure plunger pump can achieve adjustable walking speed. At the same time, the hydraulic system of the self-moving high-pressure plunger pump is equipped with relevant pipelines and joints to ensure the operation of the hydraulic system, realize the walking function of the self-moving high-pressure plunger pump, and achieve the purpose of transporting equipment.

[0049] The embodiment of the utility model can change the pulling and moving mode of the traditional high-pressure plunger pump equipment train, provide power through the hydraulic system, and control the rotation direction of the motor through the reversing valve, so as to realize movement in the tunnel of the comprehensive mining working face.

[0050] The second embodiment of the utility model provides a self-moving high-pressure plunger pump, which includes the walking device of the above embodiment, and the walking device includes a working platform 10, and a plunger pump assembly 20 and a control assembly 30 are arranged on the working platform 10. The control assembly 30 here is used to control the operation of the plunger pump assembly 20 and the walking assembly.

[0051] The embodiment of the utility model integrates the plunger pump into the walking device to realize autonomous movement underground, and no longer relies on rails, winches and other pulling and moving equipment, which solves the risk of safety accidents such as slipping and rope breaking during the pulling and moving of the equipment. It also has the characteristics of fast moving turnover speed and flexible movement, which is convenient for improving production efficiency and reducing production costs.

[0052] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0053] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0054] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present utility model.

[0055] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0056] 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. A walking device, characterized in that: It includes a working platform and a walking component. The working platform is provided with a power drive component. The power drive component includes a hydraulic pump, a reversing valve and a driving motor. The walking component is arranged below the working platform. The walking component includes a hydraulic actuator, a reducer and a walking unit. The driving motor drives the hydraulic pump to drive the reversing valve to perform a reversing operation. The hydraulic actuator drives the reducer to rotate and drives the walking unit to rotate.

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 valve is operated by manual control and / or remote control.

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

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 reducer, and the crawler belt is covered on the driving wheel.

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

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

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

10. The self-moving high-pressure 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 operation of the power drive assembly, the plunger pump assembly and the travel assembly.

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