Tire puncture prevention device for oil field engineering truck

Abstract

The invention relates to a tire puncturing prevention device for an oil field engineering vehicle, which belongs to the technical field of field service operation of oil field engineering vehicles, and comprises a strong magnetic baffle, a hydraulic cylinder and a nylon brush, a baffle fixing base is arranged below an engineering vehicle base between front wheels and rear wheels, and the baffle fixing base is connected with the upper end of the strong magnetic baffle through a baffle pin shaft; a hydraulic cylinder fixing base is arranged below the engineering truck base behind the baffle fixing base, the hydraulic cylinder fixing base is connected with a hydraulic cylinder through a hydraulic cylinder bottom pin shaft, and a hydraulic cylinder head and the baffle fixing base are arranged at the lower end of the strong magnetic baffle; the hydraulic cylinder head and the baffle fixing base are connected with a hydraulic rod at the telescopic end of the hydraulic cylinder through a hydraulic cylinder head pin shaft, and a nylon brush is arranged at the bottom end of the strong magnetic baffle. By means of the strong magnet and the nylon brush, a part of sundries wrapped by the front wheel and flying up are attracted by the strong magnet, a part of the sundries collide with the nylon brush to return to the ground again and are in a horizontal static state, and the situation that the rear wheel punctures a tire is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of on-site service operations of oilfield engineering vehicles, and in particular relates to a puncture prevention device for oilfield engineering vehicles. Background Art

[0002] At present, there are many engineering vehicles, including about 3,000 vehicles of all types, including work vehicles, cranes, tank trucks, pickup trucks, special vehicles and off-road vehicles. Due to the complex working environment, the road conditions are mainly muddy, mountainous and uneven terrain. Due to years of operation and a large number of intersections between the working area and the surrounding urban and rural villages, iron nails, small iron pieces and broken glass can be seen everywhere on the road. Cleaning up the debris on the road is almost an impossible task, which leads to frequent punctures of oilfield engineering vehicles during operation and return. The existing anti-puncture technology is relatively simple, which only selects tires with deeper treads to minimize the risk of punctures. For cost considerations, tires with shallow treads that have been used for a long time cannot be replaced immediately, resulting in more serious punctures at the end of the tire's use. Summary of the invention

[0003] In order to solve the problem of low pipe column installation efficiency during pipe lifting and lowering operations, the present invention proposes: an oilfield engineering vehicle puncture prevention device, comprising a baffle fixing base, a baffle pin shaft, a strong magnetic baffle, a hydraulic cylinder fixing base, a hydraulic cylinder bottom pin shaft, a hydraulic cylinder head pin shaft, a hydraulic cylinder, a hydraulic cylinder head and a baffle fixing base, and a nylon brush. A baffle fixing base is arranged below the engineering vehicle base between the front wheels and the rear wheels, the baffle fixing base is connected to the upper end of the strong magnetic baffle through the baffle pin shaft, a hydraulic cylinder fixing base is arranged below the engineering vehicle base behind the baffle fixing base, the hydraulic cylinder fixing base is connected to the hydraulic cylinder through the hydraulic cylinder bottom pin shaft, a hydraulic cylinder head and a baffle fixing base are arranged at the lower end of the strong magnetic baffle, the hydraulic cylinder head and the baffle fixing base are connected to the hydraulic rod at the telescopic end of the hydraulic cylinder through the hydraulic cylinder head pin shaft, and a nylon brush is arranged at the bottom end of the strong magnetic baffle.

[0004] Furthermore, the bottom end of the strong magnetic baffle is connected to the nylon brush via a nylon brush fixing bolt.

[0005] Furthermore, a baffle fixing base is fixedly arranged below the engineering vehicle base between the front wheels and the rear wheels.

[0006] Furthermore, a hydraulic cylinder fixing base is fixedly arranged below the engineering vehicle base behind the baffle fixing base.

[0007] Furthermore, the thickness of the steel plate of the baffle fixing base is 5 mm, and the distance between the baffle fixing base and the vertical tangent of the rear wheel is 600 mm.

[0008] Furthermore, the diameter of the baffle pin is 8 mm.

[0009] Furthermore, the width of the strong magnetic baffle is 800mm, and ordinary 2mm steel plate plus 5mm thick neodymium magnet are selected, and the adsorption force reaches 200kg / dm 2 .

[0010] Furthermore, the height of the strong magnetic baffle is 500 mm, and the distance between the strong magnetic baffle and the rear wheel is 600 mm.

[0011] The beneficial effects of the present invention are as follows: in view of the serious problem of punctures at present, the source of punctures is solved in principle. The statistical analysis of the puncture data of existing vehicles shows that more than 95% of the tires are rear tires. The reason is that the front wheel brings up iron nails, iron parts, broken glass and other debris on the ground that can cause punctures. The debris falls on the driving track of the rear wheel during the process of the front wheel wrapping and flying up. The rear wheel presses on the debris in the flying state, causing the debris to puncture the tire from the direction of the tread. The present invention can allow part of the debris brought up by the front wheel to be strongly magnetically adsorbed, and part of it to return to the ground and be in a horizontal static state. After the rear wheel passes, punctures are avoided.

[0012] The present invention utilizes strong magnets and nylon brushes, so that part of the debris flying up from the front wheel is absorbed by the strong magnet, and part of it hits the nylon brush and returns to the ground in a horizontal static state. After the rear wheel passes, a puncture is avoided. At the same time, when encountering complex road conditions, the baffle and the attached nylon brush are retracted and fit with the lower edge of the car body by shortening the cylinder stroke to prevent damage to the device and the vehicle. Compared with the traditional anti-puncture method that relies on the tire's own tread, this method solves the source of the puncture in principle and effectively prevents the punctured debris from harmfully contacting the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the puncture prevention device for oilfield engineering vehicles.

[0014] Among them, the figure markings are: 1. baffle fixing base; 2. baffle pin shaft; 3. strong magnetic baffle; 4. hydraulic cylinder fixing base; 5. hydraulic cylinder bottom pin shaft; 6. nylon brush fixing bolt; 7. hydraulic cylinder head pin shaft; 8. hydraulic cylinder; 9. hydraulic cylinder head and baffle fixing base; 10. nylon brush. DETAILED DESCRIPTION

[0015] A puncture prevention device for oilfield engineering vehicles, such as Figure 1As shown, it includes a baffle fixing base 1, a baffle pin shaft 2, a strong magnetic baffle 3, a hydraulic cylinder fixing base 4, a hydraulic cylinder bottom pin shaft 5, a hydraulic cylinder head pin shaft 7, a hydraulic cylinder 8, a hydraulic cylinder head and baffle fixing base 9, and a nylon brush 10. The baffle fixing base 1 is arranged below the engineering vehicle base between the front wheel and the rear wheel, the baffle fixing base 1 is connected to the upper end of the strong magnetic baffle 3 through the baffle pin shaft 2, a hydraulic cylinder fixing base 4 is arranged below the engineering vehicle base behind the baffle fixing base 1, the hydraulic cylinder fixing base 4 is connected to the hydraulic cylinder 8 through the hydraulic cylinder bottom pin shaft 5, a hydraulic cylinder head and baffle fixing base 9 is arranged at the lower end of the strong magnetic baffle 3, the hydraulic cylinder head and baffle fixing base 9 are connected to the hydraulic rod at the telescopic end of the hydraulic cylinder 8 through the hydraulic cylinder head pin shaft 7, and a nylon brush 10 is arranged at the bottom end of the strong magnetic baffle 3.

[0016] The bottom end of the strong magnetic baffle 3 is connected to the nylon brush 10 via a nylon brush fixing bolt 6 .

[0017] Wherein, a baffle fixing base 1 is fixedly arranged below the engineering vehicle base between the front wheels and the rear wheels.

[0018] Wherein, a hydraulic cylinder fixing base 4 is fixedly arranged below the engineering vehicle base behind the baffle fixing base 1.

[0019] The steel plate thickness of the baffle fixing base 1 is 5 mm, and the vertical tangent distance between the baffle fixing base 1 and the rear wheel is 600 mm.

[0020] Wherein, the diameter of the baffle pin 2 is 8 mm.

[0021] The strong magnetic baffle 3 is 800mm wide and is made of ordinary 2mm steel plate plus 5mm thick neodymium magnet, with an adsorption force of 200kg / dm 2 .

[0022] The height of the strong magnetic baffle 3 is 500 mm, and the distance between the strong magnetic baffle 3 and the rear wheel is 600 mm.

[0023] Its structural features are that the hydraulic cylinder, the strong magnetic baffle and the nylon brush are connected through two fixed bases. When the hydraulic cylinder is fully extended, the angle between the lower edge of the strong magnetic baffle and the tangent of the wheel and the ground is greater than the approach angle and departure angle of the vehicle itself. When the hydraulic cylinder is fully retracted, the baffle fits horizontally with the lower edge of the car body. Different from the traditional principle of preventing punctures by relying on tire tread, this invention avoids punctures by blocking and absorbing puncture debris, solving the puncture problem of oilfield engineering vehicles on complex road conditions from the source.

[0024] Design principles:

[0025] 1. When the device is perpendicular to the ground, the design data ensures that the angle between the lower edge of the baffle and the tangent line of the wheel and the ground is greater than the approach angle and departure angle of the vehicle itself, which will not affect the vehicle's passability. The nylon brush maintains a reasonable distance from the rear wheel to prevent the nylon brush from being crushed by the rear wheel and causing damage;

[0026] 2. When encountering complex road conditions such as partial depression of the ground, which causes the wheels to sink, the hydraulic cylinder stroke is shortened through the hydraulic principle, and the baffle and the attached nylon brush are retracted to fit the lower edge of the car body to prevent damage to the device and the vehicle;

[0027] 3. The design of replaceable nylon brushes, based on the strong plasticity and wear resistance of nylon brushes, can block the puncture debris while having no hard contact with the ground. After long-term use, it can be replaced;

[0028] 4. The development of a strong magnetic baffle. When the debris flying up driven by the front wheel is mostly iron debris and flying at a high altitude, it is not blocked by the nylon brush and can be absorbed by the strong magnetic baffle to avoid tire puncture.

[0029] Fender fixing base 1: Since the weight of the entire invention is 25kg, during the design process, the 5mm thickness of the steel plate of the fender fixing base 1 can support the overall weight, and the vertical tangent distance from the rear wheel is 600mm;

[0030] The baffle pin 2 is selected with a diameter of 8mm, which is versatile and easy to process;

[0031] Strong magnetic baffle 3. The design of strong magnetic baffle 3 should take into account the width of the rear wheel. The width is designed to be 800mm. Considering the adsorption of iron debris, ordinary 2mm steel plate plus 5mm thick neodymium magnet is selected, and the adsorption force reaches 200kg / dm 2 After field tests, it can absorb heavy objects within 3kg / 40km. Then, according to the approach angle of engineering vehicles (40°), the departure angle of engineering vehicles (30°) and the tire diameter of engineering vehicles (1100mm), the height of the baffle and the distance from the rear wheel are designed to prevent the invention from affecting the trafficability of engineering vehicles. Usually, the height of the baffle is designed to be 500mm and the distance from the rear wheel is 600mm to prevent the rear wheel from rolling over the nylon brush under the baffle.

[0032] The hydraulic cylinder fixing base 4 is designed in the same way as the baffle fixing base 1, and is made of 5mm steel plate. At the same time, the horizontal distance from the baffle base is 700mm to ensure that the baffle is closely fitted to the lower edge of the carriage when the hydraulic cylinder is retracted;

[0033] The hydraulic cylinder bottom pin 5 is designed the same as the baffle pin 2, and uses an 8mm diameter pin;

[0034] Nylon brush fixing bolt 6, use M6 male bolt, there are many standard parts, which are easier to select;

[0035] The hydraulic cylinder head pin 7 is designed the same as the baffle pin 2, and uses an 8mm diameter pin;

[0036] Hydraulic cylinder 8, the hydraulic cylinder is designed based on an overall weight of 25 kg, with a cylinder diameter of 30 mm, a piston diameter of 16 mm, a stroke of 400 mm, and an M8 male thread for the hydraulic oil interface, which matches the diameter of the female thread of the hydraulic source of the engineering vehicle. The rated pressure is 6 MPA, which matches the pressure of the hydraulic source of the engineering vehicle;

[0037] The hydraulic cylinder head and the baffle fixing base 9 are designed the same as the baffle fixing base 1, and a 5mm steel plate is selected, which is 10mm away from the bottom of the baffle; 10. The replaceable nylon brush, in order to effectively block various flying debris, the diameter of a single fiber of the nylon brush is selected to be 0.6mm to ensure a certain blocking property. The number of layers is 5. After multiple field tests, it can block heavy objects within 0.2kg / 40km. The length is 680mm to prevent the rear wheel from rolling over it. The distance from the ground is 20mm. The debris of the engineering tire 20mm cannot puncture the tire. While ensuring that debris above 20mm cannot pass through, the nylon brush is prevented from excessive wear. At the same time, the length of the replaceable nylon brush can be used to adjust the distance between the nylon brush and the ground to achieve the best anti-puncture effect.

[0038] In view of the serious problem of punctures at present, the source of punctures is solved in principle. The statistical analysis of the existing vehicle puncture data shows that more than 95% of the tires are rear tires. The reason is that the front wheel picks up iron nails, iron parts, broken glass and other debris on the ground during the forward movement. The debris falls on the driving track of the rear wheel during the flying process of the front wheel. The rear wheel presses on the flying debris, causing the debris to puncture the tire from the direction of the tread. The present invention can make part of the debris picked up by the front wheel be strongly magnetically adsorbed, and part of it return to the ground and be in a horizontal static state. After the rear wheel passes, the tire is avoided from being punctured.

[0039] The present invention utilizes strong magnets and nylon brushes, so that part of the debris flying up from the front wheel is absorbed by the strong magnet, and part of it hits the nylon brush and returns to the ground in a horizontal static state. After the rear wheel passes, a puncture is avoided. At the same time, when encountering complex road conditions, the baffle and the attached nylon brush are retracted and fit with the lower edge of the car body by shortening the cylinder stroke to prevent damage to the device and the vehicle. Compared with the traditional anti-puncture method that relies on the tire's own tread, this method solves the source of the puncture in principle and effectively prevents the punctured debris from harmfully contacting the tire.

[0040] The present invention has the following advantages

[0041] 1. Through the extensive application of the invention, the number of punctures on the same vehicle has been reduced from 1-2 times a month to once every two years;

[0042] 2. It improves the operation efficiency of engineering vehicles and reduces the procurement cost. Jilin Oilfield currently has about 3,000 engineering vehicles. A puncture requires an average of 0.5 days of downtime. There are 1-2 punctures a month. The total number of downtimes = 3,000 vehicles × 1-2 times / month × 12 months / year × 0.5 days / each downtime = 18,000 days-36,000 days, which is equivalent to 50-100 engineering vehicles being out of service throughout the year. The procurement cost of these engineering vehicles = an average of 500,000 yuan per vehicle × 50-100 vehicles = 25-50 million yuan;

[0043] 3. Reduced rescue costs: The average puncture site is 100 kilometers away from the tire repair site. The annual rescue distance = 3,000 vehicles × 1-2 times / month × 12 months / year × 100 kilometers = 3.6-7.2 million kilometers. Based on the rescue vehicle fee of 1 yuan / kilometer and tire repair of 50 yuan / time, the rescue cost = 3.6-7.2 million kilometers × 1 yuan / kilometer + 3,000 vehicles × 1-2 times / month × 12 months / year × 50 yuan / time = 5.4-10.8 million yuan. 4. Reduced tire replacement. Under the original background technology, tires need to be replaced after 50,000 kilometers of use per year, because after the tire pattern is worn thin, it will cause frequent punctures. The tire can only be replaced before the service life is reached, resulting in waste of materials. After the application of this invention, the tire life cycle is extended from 50,000 kilometers per year to the safe use cycle set for 2 years and 100,000 kilometers. The tire cost savings = 3,000 units × 8 rear tires / unit. Year ÷ 2 replaced every 2 years × 1,000 yuan / unit = 12 million yuan. 5. Comprehensive calculation of income = ② + ③ + ④ = 42.4 million to 72.8 million yuan. In addition to saving capital investment, it improves the production and transportation efficiency of engineering vehicles.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A puncture prevention device for oilfield engineering vehicles, characterized in that: The invention comprises a baffle fixing base (1), a baffle pin shaft (2), a strong magnetic baffle (3), a hydraulic cylinder fixing base (4), a hydraulic cylinder bottom pin shaft (5), a hydraulic cylinder head pin shaft (7), a hydraulic cylinder (8), a hydraulic cylinder head and a baffle fixing base (9), and a nylon brush (10). The baffle fixing base (1) is arranged below the engineering vehicle base between the front wheel and the rear wheel. The baffle fixing base (1) is connected to the upper end of the strong magnetic baffle (3) through the baffle pin shaft (2). A hydraulic cylinder fixing base (4) is arranged below the engineering vehicle base behind the baffle fixing base (1). The hydraulic cylinder fixing base (4) is connected to the hydraulic cylinder (8) through the hydraulic cylinder bottom pin shaft (5). A hydraulic cylinder head and a baffle fixing base (9) are arranged at the lower end of the strong magnetic baffle (3). The hydraulic cylinder head and the baffle fixing base (9) are connected to the hydraulic rod at the telescopic end of the hydraulic cylinder (8) through the hydraulic cylinder head pin shaft (7). A nylon brush (10) is arranged at the bottom end of the strong magnetic baffle (3).

2. The puncture prevention device for oilfield engineering vehicles according to claim 1, characterized in that: The bottom end of the strong magnetic baffle (3) is connected to the nylon brush (10) via a nylon brush fixing bolt (6).

3. The puncture prevention device for oilfield engineering vehicles according to claim 1, characterized in that: A baffle fixing base (1) is fixedly arranged below the engineering vehicle base between the front wheels and the rear wheels.

4. The puncture prevention device for oilfield engineering vehicles according to claim 1, characterized in that: A hydraulic cylinder fixing base (4) is fixedly arranged below the engineering vehicle base behind the baffle fixing base (1).

5. The puncture prevention device for oilfield engineering vehicles according to claim 1, characterized in that: The steel plate thickness of the baffle fixing base (1) is 5 mm, and the distance between the baffle fixing base (1) and the vertical tangent of the rear wheel is 600 mm.

6. The puncture prevention device for oilfield engineering vehicles according to claim 1, characterized in that: The diameter of the baffle pin (2) is 8 mm.

7. The puncture prevention device for oilfield engineering vehicles according to claim 1, characterized in that: The strong magnetic baffle (3) is 800mm wide and is made of ordinary 2mm steel plate with 5mm thick neodymium magnet, with an adsorption force of 200kg / dm 2 .

8. The puncture prevention device for oilfield engineering vehicles according to claim 1, characterized in that: The height of the strong magnetic baffle (3) is 500 mm, and the distance between the strong magnetic baffle (3) and the rear wheel is 600 mm.

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