Weeding machine for oil field well site

Abstract

The invention relates to the technical field of petroleum machinery, and provides a weeding machine for an oil field well site. Comprising a walking device and a weeding device, the walking device is provided with a chassis, a mounting hole for mounting the weeding device is formed in the middle of the chassis, and the weeding device is mounted in the mounting hole through a lifting mechanism; when an oil field pumping unit well site weed removing task is carried out, the electric four-wheel weeding machine is transferred to a well site where weeding work is carried out, one person operates panel function keys according to a remote controller, the weeding machine runs to the weed site, the needed height of a cutter from the ground is adjusted according to the weed removing position and the weed height, and the weeding machine is remotely controlled to complete the weeding work; the weed removing device can adapt to weed removing sites in different environments and working conditions, reduces weeding work of weeding personnel in severe weather such as severe cold winter and high-temperature intense heat, reduces labor intensity of workers, improves weed removing work efficiency, reduces weeding workers, and has remarkable field use effect and obvious economic benefits.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum machinery and provides a weed remover used in oil field well sites. Background Art

[0002] Pumping well sites have long been subject to standardized management, one of which is a requirement for weed-free areas. This is primarily because weeds in well sites pose a significant safety hazard. If weeds are set on fire and ignite, they could burn the pumping units and the wellhead. Oil and gas leaks from the wellhead could lead to a fire that could render the well useless. Therefore, timely weed removal is essential to ensure well safety. Furthermore, most pumping well sites are constructed on earthy ground, making it ideal for weed growth. Clearing weeds in well sites has become a crucial daily task for oil producers, but the following issues currently exist.

[0003] Manual weeding is inefficient and labor-intensive The pumping well site covers an area of 2,500 square meters. The ground is primarily earthy and uneven, making it prone to weed growth. Manual weeding requires the coordination of multiple people and takes several hours to complete, resulting in low efficiency. This is especially true in spring and autumn, when new weeds quickly grow after weeding, making the work very labor-intensive. With the advancement of oil company reforms and the optimization of human resources, the number of operators has been decreasing year by year, making manual weeding difficult to meet production needs.

[0004] 2. Mechanical weeding is highly efficient but poses safety risks Pumping well sites are crucial locations for oil and gas production and are therefore not suitable for engine-driven weed control equipment. The complex environment at oil well sites not only leads to rapid weed growth, but also to the presence of debris such as wire, gloves, cotton yarn, stones, and sand within the weeds. When using mechanical weed control, these debris can be knocked off the weeds, potentially causing injuries and flying objects, posing a significant safety hazard.

[0005] 3. Lack of weeding tools suitable for use at pumping well sites At present, the market is divided into hand-push type, semi-automatic towing type, mount type, tractor-mounted type, etc. according to the walking mode; according to the power, it is divided into engine drive, solar drive, electric drive, battery electric drive, etc.; according to the tool, it is divided into flexible and rigid; according to the purpose and function, it is divided into agriculture, gardening, fruit forest, etc., and some also have multi-functional facilities such as spraying pesticides, fertilizing, and loosening soil. For the above-mentioned weeders of different models and functional uses, combined with the on-site work situation, handheld (battery) weeders and hand-push electric (battery) weeders were selected for trial weeding at the well site. After the trial, they have a certain weeding effect, but there are still the following defects; The height of handheld weeders depends entirely on the feel of the hand, which is difficult to grasp. The hand-push weeder has a fixed height and cannot adapt to the site. The cutters of both weeders are easily damaged and have a short service life. Weeding a site requires replacing multiple cutters, which is costly. The reason for this is that they are not suitable for the complex site environment of the well site. The battery life is short, generally 30-40 minutes, and multiple spare batteries are required. Frequent charging also increases the workload. Compared with engine drive, the advantages are low noise and good environmental protection.

[0006] Whether it is hand-held or hand-pushed, the operator has to bear a certain amount of physical strength and the labor intensity is relatively high; To sum up, due to the defects of use such as cutting tools, usage time, high cost, complex structure and function, special and multi-functional weeders for agriculture, forestry, orchards, and gardens are not suitable for weeding in oil pumping well sites. In order to solve the above problems, it is proposed to independently develop an intelligent electric four-wheel weeder for use in oil field well sites, which is a special weeder suitable for oil pumping well sites.

[0007] In order to solve the above problems, the following related patent technologies have emerged: The existing public technology application number is: CN201811506996.8 A new type of automated CNC household lawn mower, the lawn mower hand lever is arranged on the lawn mower body, the lawn mower handle is arranged on the lawn mower hand lever, the automated CNC button is arranged on the lawn mower handle, the CNC display is arranged on the lawn mower handle, the engine unit is arranged on the lawn mower body, the engine heat dissipation hole is arranged on the engine unit, the wheel is arranged on the lawn mower body, the protective shell is arranged on the lawn mower body, the engine air intake is arranged on the protective shell, the lawn mower blade is arranged in the protective shell, and the lawn mower blade is arranged on the lawn mower body.

[0008] The above structure is a new type of automated CNC household weeder, which can effectively solve the problems of low safety factor, easy to cause unsafe accidents, low degree of automation, and inability to achieve accurate and comfortable weeding operations. However, there are problems such as loud engine noise, high heat emission, high fuel cost, fixed height of the cutter from the ground, and the height cannot be adjusted. It requires manual hand-operated control and cannot adapt to various working conditions. Operators not only find it difficult to avoid high temperatures and bad weather, but also inhale dust on site, and the labor intensity is high. It is not suitable for the weeding environment of oil field pumping well sites.

[0009] The existing public technology application number is: CN201821816763.3 A weeder for agricultural production. The utility model relates to the field of agricultural machinery technology. Wheels are rotatably arranged on the middle part of the left side of the bottom of the fixed plate and the front and rear ends of the right side of the bottom of the fixed plate through the wheel seat and the No. 1 rotating shaft; the No. 1 motor is fixedly arranged on the right side of the upper part of the fixed plate, and the No. 2 rotating shaft is fixedly arranged on the output end of the No. 1 motor. The bottom end of the No. 2 rotating shaft passes through the fixed plate and extends to the bottom of the fixed plate, and a mowing blade is fixedly arranged on the extended end; an electric control box is fixedly arranged on the fixed plate on the left side of the No. 1 motor; axle seats are fixedly arranged on the front and rear sides of the middle part of the bottom side of the fixed plate, and a soil-turning roller is rotatably arranged in the middle of the two axle seats through bearings; the No. 2 motor is fixedly arranged on the fixed plate on the left side of the electric control box, which can greatly improve the overall working efficiency of the equipment, save time, facilitate use, reduce the impact of weeds on crop yield, and is more practical.

[0010] The above structure is a weeder for agricultural production, which is driven by an electric motor and can effectively remove weeds in agricultural sites. It integrates weeding and soil turning and is suitable for use in agricultural production sites. During operation, it requires manual hand control. The height of the cutter from the ground is fixed and cannot be adjusted. It cannot adapt to various working conditions. Not only is it difficult for operators to avoid high temperatures and bad weather, but they also inhale dust on site, which has high labor intensity. It is not suitable for weeding environments in oil field pumping well sites.

[0011] The existing public technology application number is: CN201720628176.0 A remote control weeding system belongs to the technical field of weeding systems. A remote control weeding system includes a weeder, a remote control device and a display device. The weeder includes a camera device, a positioning device, a wireless device, a processor, a solar power generation device, a battery and a drive device. Compared with the existing technology, the advantages of the present invention are: the control method adopts wireless control by a remote control device, which reduces manpower compared with traditional hand-held control. The weeder can use the remote control device to wirelessly control the weeder through the display device to avoid heatstroke or exposure to the sun caused by high outdoor temperatures. The solar power generation device is used for power supply, which is economical, energy-saving and environmentally friendly compared with traditional batteries. The solar power generation device is installed through a card slot, which is convenient for maintenance of the solar power generation device.

[0012] The above structure is a remote-controlled weeding system, which is a weeding machine that integrates photovoltaic power storage, motor drive, and wireless remote control. It also has functions such as weeding, mechanical soil turning, and air pump spraying of pesticides. Due to the excessive number of functions and large size, it will increase its own weight, consume electricity too quickly, and the photovoltaic power storage is limited, which will inevitably affect the actual working time. Some functions are not suitable for the weeding needs of oil field pumping well sites. Summary of the Invention

[0013] The purpose of the present invention is to address the deficiencies of the prior art and to provide a weed remover for use in oilfield well sites. To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: A weeder for oilfield well sites comprises a traveling device and a weeding device. The traveling device is provided with a chassis. A mounting hole for mounting the weeding device is provided in the middle of the chassis. The weeding device is mounted in the mounting hole via a lifting mechanism.

[0014] Furthermore, the weeding device includes a cutter head, a cutter holder, a weeding motor, a motor connector and a guide assembly, the cutter head is mounted on the cutter holder, the cutter holder is mounted on the power end of the weeding motor, the weeding motor is mounted on the motor connector, the periphery of the motor connector is connected to a guide assembly, the guide assembly is fixed to the chassis, and the guide assembly is used to guide the up and down reciprocating motion of the weeding motor.

[0015] Furthermore, the guide components are divided into four groups, three of which are sliding sleeve and slide rod combinations, the slide rods are fixed to the chassis, the sliding sleeves are connected to the motor connector and then slidably sleeved on the slide rods, and the other group is a lifting mechanism.

[0016] Furthermore, the lifting mechanism includes a worm gear screw lift and a lifting motor. The worm gear screw lift includes a housing, a worm wheel and a screw. The screw is fixed to the chassis, the worm wheel is rotatably mounted on the housing, the housing is connected to the motor connector, the lifting motor is mounted on the chassis, and the power end of the lifting motor is connected to the rotating shaft of the worm wheel.

[0017] Furthermore, the walking device also includes wheels, a power control box and a battery pack, the wheels are electric wheels, and the power control box and the battery pack are electrically connected.

[0018] Furthermore, there are four wheels, which are installed at the four corners of the chassis.

[0019] Furthermore, it also includes an electric control box, in which a motor control module is provided, and the motor control module is connected to the battery pack through the power control box.

[0020] Furthermore, the motor control module includes a left control module, a right control module, a weeding control module and a lifting control module, wherein the left control module is connected to the two wheels on the left side of the chassis, the right control module is connected to the two wheels on the right side of the chassis, the weeding control module is connected to the weeding motor, and the lifting control module is connected to the lifting motor, which are used to control the two wheels on the left side of the chassis, the two wheels on the right side of the chassis, the weeding motor and the lifting motor respectively.

[0021] Furthermore, it also includes a receiver and a remote controller, wherein the remote controller is communicatively connected to the receiver, and the receiver is connected to the motor control module.

[0022] Furthermore, the cutter head is a cutter block or a wire brush.

[0023] The beneficial effects of the present invention are as follows: when the task of weeding is to be carried out at the well site where the oil field pumping unit is to be operated, the electric four-wheeled weeder is transported to the well site where the weeding work is to be done, and one person controls the function keys of the remote control panel to drive the weeder to the weed site, and adjusts the required height of the cutter from the ground according to the weed cleaning position and the height of the weeds, and the weeder is remotely controlled to complete the weeding work; the weed removal site can be adapted to different environments and working conditions, and the weeding workers are required to perform weeding work in severe weather such as severe winter and high temperature in summer, thereby reducing the labor intensity of employees, improving the efficiency of weed removal work, and reducing the number of weeding workers, which has significant on-site use effects and obvious economic benefits.

[0024] Compared with existing mechanical weed control technology, it has the following advantages: The structure is simple, light and small, making it easy to transport between weeding sites; It uses batteries as power source and is driven by four-wheel speed-regulating motors, which provide strong power, small steering angle, and flexible and reliable control. Compared with engine-powered lawn mowers, it is quieter, safer and more environmentally friendly; The cutter can be replaced according to different needs, and the height can be adjusted according to different working conditions, which can improve the weeding quality and efficiency; Compared with the previous weeding workload at the well site, only one person is needed to complete the weeding work of multiple people, which reduces the labor cost. Compared with the original operating environment, it is far away from the weeding site operation, reduces physical labor, and avoids the impact of dust and bad weather on health. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure; Figure 2 It is a schematic diagram of the overall side structure; Figure 3 This is a schematic diagram of the motor control module; Figure 4 It is a schematic diagram of remote control of the present invention; Figure 5 It is a schematic diagram of the wire brush structure; In the figure: 1. chassis, 2. wheels, 3. battery pack, 4. power control box, 5. electric control box, 6. receiver, 7. lifting motor, 8. lift, 9. weeding motor, 10. guide assembly, 11. motor connecting steel plate, 12. knife block, 13. knife holder, 81. screw rod, 82. worm gear, 83. housing, 51. left control module, 52. right control module, 53. weeding control module, 54. lifting control module. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1

[0028] like Figures 1 and 2 and 5. A weeding machine for oil field well sites, mainly consisting of a traveling device and a weeding device.

[0029] The running device is an industrial remote control vehicle, which is mainly composed of a chassis 1, wheels 2, a battery pack 3, a power control box 4, an electric control box 5, a receiver 6 and a remote controller.

[0030] The chassis 1 is used to fix and install all components. It has a frame structure and is made of welded steel plates. It is parallel to the ground and has a mounting hole in the middle for installing the weeding device. The wheels 2 are four electric wheels installed at the four corners of the chassis 1. They use a DC reduction motor and four-wheel drive. They have strong power, a small turning radius, can turn on the spot, and the direction control is flexible and reliable. The power control box 4 is installed at the front end of the chassis 1, and its panel is equipped with a power switch, a charging port and a power LCD display module. The receiver 6 is arranged on the top surface of the power control box 4 to facilitate receiving control signals, making the control more flexible and reliable. The battery pack 3 is installed on the chassis 1 behind the power control box 4, between the power control box 4 and the weeding device. It uses a 48V lead-acid battery, and a lithium battery can also be used, which can meet the weeding working time of 160 minutes. The electric control box 5 is installed on the chassis 1 behind the weeding device and fixed in an open position for easy heat dissipation.

[0031] The weeding device mainly consists of a lifting motor 7, a lifter 8, a weeding motor 9, a guide rod assembly, a motor connecting steel plate 11, a knife holder 13 and a knife block 12.

[0032] There are two blade blocks 12, which are bolted to the two ends of the blade holder 13. They are made of manganese steel, with a rhombus front end and a square rear end. The rear end is bolted to the outer end of the blade holder 13. The blade holder 13 is a steel strip, and the middle part is bolted to the end of the rotating shaft of the weeding motor 9. The motor connecting steel plate 11 is a rectangular plate, which is screwed to the front end of the weeding motor 9. One corner of the motor connecting steel plate 11 is connected to the elevator 8. The elevator 8 is a worm gear 82, a screw rod 81, and an elevator 8, which consists of a screw rod 81, a worm gear 82 and a housing 83. The bottom of the screw rod 81 The part is fixed to the chassis 1, and a through hole is provided on the shell 83 for sliding sleeve on the screw rod 81. The worm gear 82 is rotatably installed inside the shell 83 and engages with the screw rod 81. The up and down reciprocating motion of the shell 83 is realized by the transmission pair of the worm gear 82 and the screw rod 81. The shell 83 is connected to the motor connecting steel plate 11, and the rotating shaft of the worm gear 82 is connected to the power output shaft of the lifting motor 7. The lifting motor 7 is fixed to the chassis 1; in addition, the triangles are respectively connected to a group of guide components 10, which are a sliding sleeve and slide rod combination, used for the up and down reciprocating motion of the weeding motor 9.

[0033] In this embodiment, the blade block 12 can also be other replacement parts, such as a steel brush, and the corresponding parts can be replaced according to different requirements of the construction scene.

[0034] Example 2

[0035] like Figure 3-4 A weeder for an oilfield well site, a power management module is installed in the power control box 4, the power management module is provided with a power input terminal, a power output terminal, a charging terminal, a power display terminal and a switch terminal, the power input terminal is connected to the battery pack 3, the power output terminal is connected to the electric control box 5, the charging terminal is connected to the charging port, the power display terminal is connected to the power LCD display module, and the switch terminal is connected to the power switch.

[0036] The electric control box 5 is equipped with a motor control module, which is provided with a power input terminal, a power output terminal and a control terminal. The power input terminal of the motor control module is connected to the power output terminal of the power management module, the power output terminal of the motor control module is connected to the controlled motor, and the control terminal is connected to the receiver 6. The receiver 6 is wirelessly connected to the remote control for controlling the start and stop, forward and reverse rotation or speed regulation of the electric wheel, the weeding motor 9 and the lifting motor 7. The motor control module includes a left control module 51, a right control module 52, a weeding control module 53 and a lifting control module 54. The left control module 51 is used to control the two wheels 2 on the left side of the chassis 1, the right control module 52 is used to control the two wheels 2 on the right side of the chassis 1, the weeding control module 53 is used to control the weeding motor 9, and the lifting control module 54 is used to control the lifting motor 7.

[0037] Example 3

[0038] A weeder for oilfield well sites, the remote control is equipped with a remote control switch, a left wheel control lever, a right wheel control lever, a lifting control lever, a weeding knob switch and a weeding forward and reverse switch, and can be controlled by wireless communication modes such as Bluetooth and 2.4G, including the following usage methods: 1. Preparation 1. Wear labor protection supplies and protective equipment correctly; 2. Risk identification: Be familiar with the operation content and steps, identify safety risks and formulate protective measures, clearly identify operators, and prevent electric shock and mechanical injuries.

[0039] 2. Operation steps 1. Inspection (1) Make sure the batteries of the lawn mower and its remote control are fully charged before use; (2) Check the power supply and circuit of the lawn mower to ensure that there is no leakage in the circuit and the power supply is normal; (3) Check whether the connections of various parts of the machine are firm; (4) Check whether there are any obstacles, wire, glass or other debris in the weeding area and clean them up in time.

[0040] 2. Getting on and off the bus (1) Place the pedals on the rear trough of the transport vehicle according to the width of the machine; (2) Turn on the power switch on the machine; (3) Turn on the remote control switch on the remote control; (4) Use the left and right wheel control levers to adjust the position (align with the pedals); (5) Use the left and right wheel control levers to control the machine to move along the pedals into the vehicle slot (or move it to the ground).

[0041] 3. Weeding (1) Observe the height of the weeds and adjust the weeder to the appropriate height (the adjustment range is 2-10 cm, and the adjustment range is adjusted at any height through the worm gear 82 and the screw rod 81 transmission pair) to ensure the best weeding effect; (2) For weeds over 0.5 meters, first adjust the knife holder 13 to the upper end; after the higher weeds are cleared in the first pass, adjust the knife holder 13 to the lower end for the second pass of weeding; (3) For weeds below 0.5 meters, adjust the knife holder 13 to the lowest end and the weeds can be cleaned in one go; (4) After moving the mower to the weed area, turn on the cutter speed control button and adjust the speed of the mowing motor 9 according to the weed situation on site through the weeding knob switch. The speed can be lowered for soft weeds and increased for harder weeds.

[0042] Under normal circumstances, the weeding forward and reverse switch rotates clockwise. When weeds are entangled on the cutter, it can be adjusted to rotate counterclockwise and the entangled weeds will be cleared away. (5) After the weeder reaches the weed boundary, it can adjust the body and move backward to continue weeding. (6) After clearing the weeds, clean up the site, remotely control the weeder to the transport vehicle, turn off the remote control switch first, then turn off the power switch on the weeder, retract the pedal, and the weeding is complete.

[0043] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A weeder for oilfield well site, comprising a traveling device and a weeding device, wherein the traveling device is provided with a chassis, characterized in that: A mounting hole for mounting a weeding device is provided in the middle of the chassis, and the weeding device is mounted in the mounting hole through a lifting mechanism.

2. A weed remover for oil field well site according to claim 1, characterized in that: The weeding device includes a cutter head, a cutter holder, a weeding motor, a motor connector and a guide assembly, wherein the cutter head is mounted on the cutter holder, the cutter holder is mounted on the power end of the weeding motor, the weeding motor is mounted on the motor connector, the periphery of the motor connector is connected to a guide assembly, the guide assembly is fixed to the chassis, and the guide assembly is used to guide the weeding motor to move back and forth up and down.

3. A weeder for oil field well site according to claim 2, characterized in that: The guide components are divided into four groups, three of which are sliding sleeve and slide rod combinations. The slide rods are fixed to the chassis, and the sliding sleeves are connected to the motor connectors and then slidably sleeved on the slide rods. The other group is a lifting mechanism.

4. A weeder for oil field well site according to claim 3, characterized in that: The lifting mechanism includes a worm gear screw lifter and a lifting motor. The worm gear screw lifter includes a housing, a worm wheel and a screw. The screw is fixed to the chassis, and the worm wheel is rotatably mounted on the housing. The housing is connected to the motor connector. The lifting motor is mounted on the chassis, and the power end of the lifting motor is connected to the rotating shaft of the worm wheel.

5. A weeder for oil field well site according to any one of claims 1 to 4, characterized in that: The walking device also includes wheels, a power control box and a battery pack. The wheels are electric wheels, and the power control box and the battery pack are electrically connected.

6. A weed remover for oil field well site according to claim 5, characterized in that: There are four wheels, which are installed at the four corners of the chassis.

7. A weed remover for oil field well site according to claim 6, characterized in that: It also includes an electric control box, in which a motor control module is arranged. The motor control module is connected to a battery pack via a power control box.

8. The weeder for oil field well site according to claim 7, characterized in that: The motor control module includes a left control module, a right control module, a weeding control module and a lifting control module, wherein the left control module is connected to the two wheels on the left side of the chassis, the right control module is connected to the two wheels on the right side of the chassis, the weeding control module is connected to the weeding motor, and the lifting control module is connected to the lifting motor, which are used to control the two wheels on the left side of the chassis, the two wheels on the right side of the chassis, the weeding motor and the lifting motor respectively.

9. The weed remover for oil field well site according to claim 8, characterized in that: It also includes a receiver and a remote controller, wherein the remote controller is communicatively connected to the receiver, and the receiver is connected to the motor control module.

10. The weeder for oil field well site according to claim 9, characterized in that: The cutter head is a cutter block or a wire brush.

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