Automatic tensioner for automobile engine

Abstract

The present invention relates to the technical field of tensioners, and in particular to an automatic tensioner of an automobile engine, comprising an engine body, a transmission belt mounted on the engine body, a fixing seat connected and fixedly provided on the engine body, an oil seat connected and fixedly provided on the fixing seat, a tensioning mechanism connected and fixedly provided on the lower side of the fixing seat, a waste oil cover connected and fixedly provided on the tensioning mechanism, a waste oil treatment mechanism connected and fixedly provided inside the waste oil cover, removal plates provided on both sides of the waste oil treatment mechanism, a lubricating mechanism rotatably provided inside the waste oil cover, and by providing the lubricating mechanism, when a tensioning wheel tensions the transmission belt, the friction wheel can be brought into contact with the transmission belt, thereby driving the friction wheel to rotate, so that the friction wheel can drive an oil injection pipe to move back and forth through transmission, and lubricating oil is evenly sprayed onto the transmission belt to reduce friction and wear, thereby extending the service life of the tensioner, belt and other transmission system components by reducing friction and heat accumulation.

Description

Technical Field

[0001] The present invention relates to the technical field of tensioners, in particular to an automatic tensioner for an automobile engine. Background Art

[0002] The automobile engine is the core power unit of a vehicle. Its primary function is to generate power by burning fuel, propelling the vehicle forward. The engine's operating principle, type, and the functions of its various components significantly influence a vehicle's performance, efficiency, and emissions. Automobile engines are typically internal combustion engines. Their basic operating principle is to burn a mixture of fuel (usually gasoline or diesel) and air, releasing a large amount of heat energy that is converted into mechanical energy to drive the engine's various components, thereby propelling the vehicle forward.

[0003] In an engine, belts (such as timing belts and power transmission belts) transmit power, driving other components such as the water pump, generator, air conditioning compressor, and power steering pump. To ensure proper belt operation, proper belt tension is essential. Too much tension can cause belt slippage, increased wear, and even belt detachment. Excessive tension can overload the belt, tensioner, and even engine components, potentially damaging them.

[0004] The existing automatic tensioner of an automobile engine automatically tensions the belt through a tensioner pulley. However, the existing technology is not convenient for properly lubricating the tensioner pulley and the belt, and for scraping the lubricating oil off the belt after use for a period of time for replacement. As a result, there is a lack of sufficient lubrication management and continuous lubrication cannot be provided between the belt and the tensioner. Without proper lubrication, friction loss and noise may be accelerated, affecting the working efficiency of the belt and tensioner. At the same time, as the use time passes, the lubricating oil will undergo chemical reactions such as oxidation and decomposition, resulting in a decrease in lubrication effect. Since it is not convenient to automatically and timely update the lubricating oil, it may cause excessive wear of the belt and tensioner, reducing the service life of the system.

[0005] In summary, the prior art lacks a technology for automatically lubricating and automatically replacing lubricating oil for an automatic tensioner of an automobile engine. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an automatic tensioner for an automobile engine.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: an automatic tensioner for an automobile engine, comprising an engine body, a transmission belt mounted on the engine body, a fixing seat connected and fixedly provided on the engine body, an oil seat connected and fixedly provided on the fixing seat, a tensioning mechanism connected and fixedly provided on the lower side of the fixing seat, a waste oil hood connected and fixedly provided on the tensioning mechanism, a waste oil treatment mechanism connected and fixedly provided inside the waste oil hood, removal plates provided on both sides of the waste oil treatment mechanism, and a lubrication mechanism rotatably connected and provided inside the waste oil hood.

[0008] Preferably, the tensioning mechanism includes a hydraulic rod, one end of which is fixedly connected to a fixed seat, and the other end of which is fixedly connected to an adjustment frame, and both ends of the adjustment frame are rotatably connected to tension wheels, and the tension wheels are in sliding contact with the outer wall of the transmission belt.

[0009] Preferably, one end of the waste oil cover is connected and fixed to the adjustment frame, an oil receiving pan is provided on the lower side of the waste oil cover, mounting strips are provided on both sides of the top of the oil receiving pan for sliding cooperation, one end of the mounting strip is connected and fixed to a spring, and the top of the mounting strip is movably engaged with the bottom end of the waste oil cover.

[0010] Preferably, the waste oil treatment mechanism includes an electric push rod A, one end of the electric push rod A is connected and fixed to the waste oil cover, the other end of the electric push rod A is connected and fixed to a scraper, the scraper is in sliding contact with the transmission belt, a slide groove is provided on the scraper, a slider is provided in the slide groove for sliding cooperation, a guide frame is connected and fixed to the slider, a push plate is connected and fixed to the lower surface of the guide frame, and both sides of one end of the push plate are respectively in sliding contact with the scraper and the transmission belt.

[0011] Preferably, the waste oil treatment mechanism also includes a motor, which is fixedly connected to the scraper, and the output end of the motor passes through the scraper and is fixedly connected to a gear disk, and a toggle head is fixedly connected to one side of the gear disk, and a guide groove is provided on the guide frame, and the inner wall of the guide groove is slidably matched with the outer wall of the toggle head.

[0012] Preferably, one end of the removal plate is arranged in sliding contact with the push plate, and the other end of the removal plate is rotatably connected to a fixing frame, the fixing frame is fixedly connected to the scraper, and a universal joint A is rotatably connected to one side of the fixing frame.

[0013] Preferably, a worm is fixedly provided at the bottom end of the universal joint A, a worm wheel is fixedly provided at one end of the removal plate connected to the fixed frame, and a transmission wheel is fixedly provided at the top end of the universal joint A, and the transmission wheel is meshed with the gear disk for transmission.

[0014] Preferably, the lubrication mechanism includes an oil spray pipe, which is rotatably connected to the inner wall of the waste oil hood. One end of the oil spray pipe is fixedly connected to a metering pump through a hose. The metering pump is fixedly connected to the waste oil hood, and the input end of the metering pump is fixedly connected to the oil seat through a hose passing through the waste oil hood.

[0015] Preferably, the fuel injection pipe is rotatably connected with a connecting rod in an eccentric structure, the other end of the connecting rod is rotatably connected with a turntable, the turntable is rotatably connected to the waste oil cover, one end of the turntable is fixedly connected with a universal joint B, the bottom end of the universal joint B is fixedly connected with an electric push rod B, the electric push rod B is rotatably connected to the waste oil cover, the bottom end of the electric push rod B is fixedly connected with a friction wheel, and the friction wheel is in friction contact with the transmission belt.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up a lubrication mechanism, when the tensioning wheel is tensioning the transmission belt, the friction wheel can be in contact with the transmission belt, thereby driving the friction wheel to rotate, so that the friction wheel can drive the oil spray pipe to move back and forth through the transmission, and the lubricating oil is evenly sprayed onto the transmission belt to reduce friction and wear. By reducing friction and heat accumulation, the service life of the tensioner, transmission belt and other transmission system components is extended;

[0018] 2. By setting up a waste oil treatment mechanism, after the lubricating oil on the transmission belt has been used for a period of time, the scraper can be used to contact the transmission belt to scrape off the old lubricating oil on the transmission belt. At the same time, the reciprocating push plate can push the lubricating oil scraped off by the scraper into the oil receiving pan. Automatic regular cleaning and replacement of lubricating oil can be achieved, which can effectively reduce equipment wear and failure, reduce maintenance costs, and effectively improve the service life of the transmission belt and the overall performance of the equipment.

[0019] 3. By setting up a removal plate, the removal plate can be driven to rotate while the push plate moves back and forth, and the lubricating oil attached to the push plate can be cleaned to ensure that too much lubricating oil will not accumulate on the push plate surface, avoiding the accumulation of oil stains that cause the push plate to work unsmoothly or reduce the oil pushing efficiency. The rotation of the removal plate improves the efficiency of waste oil cleaning, reduces waste oil residue, and helps to effectively clean the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an automatic tensioner for an automobile engine according to the present invention;

[0021] Figure 2 This is a partial cross-sectional schematic diagram of the overall structure of an automatic tensioner for an automobile engine according to the present invention;

[0022] Figure 3This is a partial cross-sectional schematic diagram of a structure of an automatic tensioner for an automobile engine according to the present invention;

[0023] Figure 4 This is a structural schematic diagram of a tensioning mechanism of an automatic tensioner for an automobile engine according to the present invention;

[0024] Figure 5 This is a partial cross-sectional expanded schematic diagram of a waste oil cover structure of an automatic tensioner of an automobile engine according to the present invention;

[0025] Figure 6 This is a schematic diagram of the expanded structure of a waste oil treatment mechanism of an automatic tensioner of an automobile engine according to the present invention;

[0026] Figure 7 This is a schematic diagram of a structure in which a plate of an automatic tensioner of an automobile engine is removed according to the present invention;

[0027] Figure 8 The present invention is a schematic structural diagram of a lubrication mechanism of an automatic tensioner for an automobile engine.

[0028] The following are marked in the figure: 1. Engine body; 2. Drive belt; 3. Fixing seat; 4. Oil seat; 5. Tensioning mechanism; 6. Waste oil cover; 7. Waste oil treatment mechanism; 8. Removal plate; 9. Lubrication mechanism; 501. Hydraulic rod; 502. Adjustment frame; 503. Tensioning pulley; 601. Oil collecting pan; 602. Mounting strip; 603. Spring; 701. Electric push rod A; 702. Scraper; 703. Slide; 704. 04, slider; 705, guide frame; 706, push plate; 707, motor; 708, gear plate; 709, toggle head; 710, guide groove; 801, fixed frame; 802, universal joint A; 803, worm; 804, worm wheel; 805, transmission wheel; 901, fuel injection pipe; 902, connecting rod; 903, turntable; 904, universal joint B; 905, electric push rod B; 906, friction wheel. DETAILED DESCRIPTION

[0029] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0030] like Figures 1-8 The automatic tensioner of an automobile engine shown in the figure includes an engine body 1, a transmission belt 2 is mounted on the engine body 1, a fixing seat 3 is fixedly connected to the engine body 1, an oil seat 4 is fixedly connected to the fixing seat 3, a tensioning mechanism 5 is fixedly connected to the lower side of the fixing seat 3, a waste oil cover 6 is fixedly connected to the tensioning mechanism 5, a waste oil treatment mechanism 7 is fixedly connected inside the waste oil cover 6, removal plates 8 are provided on both sides of the waste oil treatment mechanism 7, and a lubrication mechanism 9 is rotatably connected and provided inside the waste oil cover 6.

[0031] like Figure 4 As shown, the tensioning mechanism 5 includes a hydraulic rod 501, one end of which is fixedly connected to the fixed seat 3, and the other end of the hydraulic rod 501 is fixedly connected to the adjustment frame 502. The adjustment frame 502 is rotatably connected to both ends of the adjustment frame 502 with tensioning wheels 503. The tensioning wheels 503 are arranged in sliding contact with the outer wall of the transmission belt 2. The hydraulic rod 501 drives the adjustment frame 502 to move downward, so that the two tensioning wheels 503 on the adjustment frame 502 tension the transmission belt 2.

[0032] like Figure 5 As shown, one end of the waste oil cover 6 is connected and fixed to the adjustment frame 502, an oil receiving dish 601 is provided on the lower side of the waste oil cover 6, and mounting strips 602 are provided on both sides of the top of the oil receiving dish 601 for sliding cooperation, and a spring 603 is connected and fixed to one end of the mounting strip 602, and the top of the mounting strip 602 is movably connected to the bottom end of the waste oil cover 6.

[0033] like Figure 6 As shown, the waste oil treatment mechanism 7 includes an electric push rod A701, one end of which is fixedly connected to the waste oil cover 6, and the other end of the electric push rod A701 is fixedly connected to a scraper 702. The scraper 702 is in sliding contact with the transmission belt 2. The scraper 702 is provided with a chute 703, and a slider 704 is provided in sliding engagement with the chute 703. The slider 704 is fixedly connected to a guide frame 705, and a push plate 706 is fixedly connected to the lower surface of the guide frame 705. The two sides of one end of the push plate 706 are respectively in sliding contact with the scraper 702 and the transmission belt 2. The electric push rod A701 drives the scraper 702 downward, so that the scraper 702 contacts the transmission belt 2, at which time the lubricating oil on the transmission belt 2 is scraped off.

[0034] The waste oil treatment mechanism 7 further includes a motor 707, which is fixedly connected to the scraper 702. The output end of the motor 707 passes through the scraper 702 and is fixedly connected to a toothed disc 708. A toggle head 709 is fixedly connected to one side of the toothed disc 708. A guide groove 710 is formed on the guide frame 705, and the inner wall of the guide groove 710 is slidably engaged with the outer wall of the toggle head 709. The motor 707 drives the toothed disc 708 to rotate, and the toothed disc 708 drives the toggle head 709 to rotate, causing the toggle head 709 to slide within the guide groove 710, thereby driving the slider 704 connected to the guide frame 705 to slide back and forth within the slide groove 703, so that the push plate 706 connected to the guide frame 705 cleans the lubricating oil scraped from the transmission belt 2.

[0035] like Figure 7As shown, one end of the removal plate 8 is in sliding contact with the push plate 706, and the other end of the removal plate 8 is rotatably connected to a fixing frame 801, which is fixedly connected to the scraper 702, and a universal joint A802 is rotatably connected to one side of the fixing frame 801.

[0036] A worm 803 is fixedly connected to the bottom end of universal joint A802, and a worm gear 804 is fixedly connected to the end of removal plate 8 connected to fixed frame 801. A transmission wheel 805 is fixedly connected to the top end of universal joint A802, and transmission wheel 805 is meshed with gear plate 708. Gear plate 708 drives transmission wheel 805 to rotate, which in turn drives worm 803 connected to universal joint A802 to rotate, which in turn drives removal plate 8 connected to worm gear 804 to rotate, pushing down push plate 706.

[0037] like Figure 8 As shown, the lubrication mechanism 9 includes an oil injection pipe 901, which is rotatably connected to the inner wall of the waste oil cover 6. A metering pump is fixedly provided at one end of the oil injection pipe 901 through a hose. The metering pump is fixedly connected to the waste oil cover 6, and the input end of the metering pump is fixedly connected to the oil seat 4 through a hose passing through the waste oil cover 6.

[0038] A connecting rod 902 is rotatably connected to the fuel injection pipe 901 in an eccentric configuration. A turntable 903 is rotatably connected to the other end of the connecting rod 902. Turntable 903 is rotatably connected to the waste oil cover 6. A universal joint B904 is fixedly connected to one end of the turntable 903. An electric push rod B905 is fixedly connected to the bottom end of the universal joint B904. Electric push rod B905 is rotatably connected to the waste oil cover 6. A friction wheel 906 is fixedly connected to the bottom end of the electric push rod B905. Friction wheel 906 is in frictional contact with the transmission belt 2. The connecting rod 902 is rotatably connected to the turntable 903 in an eccentric position. The electric push rod B905 is used to drive the connected friction wheel 906 to move downward, so that the friction wheel 906 contacts the side of the transmission belt 2, thereby driving the friction wheel 906 to rotate, so that the friction wheel 906 drives the universal joint B904 connected to the electric push rod B905 to rotate, and the universal joint B904 drives the turntable 903 to rotate. At this time, the turntable 903 will drive the injection pipe 901 to swing back and forth through the connecting rod 902.

[0039] Working principle: When the transmission belt 2 needs to be tensioned, the hydraulic rod 501 is used to drive the adjustment frame 502 to move downward, so that the two tensioning wheels 503 on the adjustment frame 502 tension the transmission belt 2;

[0040] When lubrication is needed between the transmission belt 2 and the tensioning wheel 503, the electric push rod B905 is used to drive the connected friction wheel 906 to move downward, so that the friction wheel 906 contacts the side of the transmission belt 2, thereby driving the friction wheel 906 to rotate, so that the friction wheel 906 drives the universal joint B904 connected to the electric push rod B905 to rotate, so that the universal joint B904 drives the turntable 903 to rotate, and at this time the turntable 903 drives the oil spray pipe 901 to swing back and forth through the connecting rod 902, and at this time the metering pump draws the lubricating oil in the oil seat 4 out and sprays it on the transmission belt 2 through the oil spray pipe 901 for lubrication;

[0041] After the lubricating oil has been used for a period of time, the electric push rod A701 is used to drive the scraper 702 to move downward, so that the scraper 702 contacts the transmission belt 2, and the lubricating oil on the transmission belt 2 is scraped off. At the same time, the motor 707 is used to drive the toothed disc 708 to rotate. At this time, the toothed disc 708 drives the toggle head 709 to rotate, so that the toggle head 709 slides in the guide groove 710, thereby driving the slider 704 connected to the guide frame 705 to slide back and forth in the slide groove 703, so that the push plate 706 connected to the guide frame 705 cleans the lubricating oil scraped off the transmission belt 2;

[0042] At the same time, the toothed disc 708 drives the transmission wheel 805 to rotate, so that the transmission wheel 805 drives the worm 803 connected to the universal joint A802 to rotate, so that the worm 803 can drive the removal plate 8 connected to the worm wheel 804 to rotate, pushing down the push plate 706, so that the old lubricating oil can fall into the oil receiving dish 601;

[0043] Then, by pressing the two mounting bars 602 , the oil collecting pan 601 can be removed to clean the old lubricating oil.

[0044] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic tensioner for an automobile engine, comprising an engine body (1), characterized in that: The engine body (1) is provided with a transmission belt (2), a fixing seat (3) is fixedly connected to the engine body (1), an oil seat (4) is fixedly connected to the fixing seat (3), a tensioning mechanism (5) is fixedly connected to the lower side of the fixing seat (3), a waste oil cover (6) is fixedly connected to the tensioning mechanism (5), a waste oil treatment mechanism (7) is fixedly connected to the waste oil cover (6), removal plates (8) are provided on both sides of the waste oil treatment mechanism (7), a lubricating mechanism (9) is rotatably connected to the waste oil cover (6), the lubricating mechanism (9) comprises an oil injection pipe (901), the oil injection pipe (901) is rotatably connected to the inner wall of the waste oil cover (6), one end of the oil injection pipe (901) is fixedly connected to a metering pump via a hose, The metering pump is fixedly connected to the waste oil cover (6), and the input end of the metering pump is fixedly connected to the oil seat (4) through the waste oil cover (6) via a hose. The oil injection pipe (901) is rotatably connected to a connecting rod (902). The other end of the connecting rod (902) is rotatably connected to a turntable (903). The turntable (903) is rotatably connected to the waste oil cover (6). One end of the turntable (903) is fixedly connected to a universal joint B (904). The bottom end of the universal joint B (904) is fixedly connected to an electric push rod B (905). The electric push rod B (905) is rotatably connected to the waste oil cover (6). The bottom end of the electric push rod B (905) is fixedly connected to a friction wheel (906). The friction wheel (906) is in friction contact with the transmission belt (2).

2. The automatic tensioner for an automobile engine according to claim 1, characterized in that: The tensioning mechanism (5) comprises a hydraulic rod (501), one end of the hydraulic rod (501) being fixedly connected to a fixed seat (3), the other end of the hydraulic rod (501) being fixedly connected to an adjustment frame (502), both ends of the adjustment frame (502) being rotatably connected to tensioning wheels (503), the tensioning wheels (503) being in sliding contact with the outer wall of the transmission belt (2).

3. The automatic tensioner for an automobile engine according to claim 2, characterized in that: One end of the waste oil cover (6) is connected and fixed to the adjustment frame (502), an oil receiving dish (601) is provided on the lower side of the waste oil cover (6), mounting strips (602) are provided on both sides of the top of the oil receiving dish (601) in a sliding manner, a spring (603) is connected and fixed to one end of the mounting strip (602), and the top of the mounting strip (602) is movably engaged with the bottom end of the waste oil cover (6).

4. The automatic tensioner for an automobile engine according to claim 1, characterized in that: The waste oil treatment mechanism (7) includes an electric push rod A (701), one end of the electric push rod A (701) is connected and fixed to the waste oil cover (6), the other end of the electric push rod A (701) is connected and fixed to a scraper (702), the scraper (702) is arranged in sliding contact with the transmission belt (2), a sliding groove (703) is provided on the scraper (702), a slider (704) is provided in the sliding groove (703), a guide frame (705) is connected and fixed to the slider (704), a push plate (706) is connected and fixed to the lower surface of the guide frame (705), and both sides of one end of the push plate (706) are respectively arranged in sliding contact with the scraper (702) and the transmission belt (2).

5. The automatic tensioner for an automobile engine according to claim 4, characterized in that: The waste oil treatment mechanism (7) further comprises a motor (707), the motor (707) being fixedly connected to the scraper (702), the output end of the motor (707) passing through the scraper (702) and being fixedly connected to a toothed disc (708), one side of the toothed disc (708) being fixedly connected to a toggle head (709), the guide frame (705) being provided with a guide groove (710), the inner wall of the guide groove (710) being slidably matched with the outer wall of the toggle head (709).

6. The automatic tensioner for an automobile engine according to claim 5, characterized in that: One end of the removal plate (8) is arranged in sliding contact with the push plate (706), and the other end of the removal plate (8) is rotatably connected to a fixing frame (801), the fixing frame (801) is fixedly connected to the scraper (702), and one side of the fixing frame (801) is rotatably connected to a universal joint A (802).

7. The automatic tensioner for an automobile engine according to claim 6, characterized in that: The bottom end of the universal joint A (802) is connected and fixedly provided with a worm (803), the end of the removal plate (8) connected to the fixed frame (801) is connected and fixedly provided with a worm wheel (804), and the top end of the universal joint A (802) is connected and fixedly provided with a transmission wheel (805), and the transmission wheel (805) is meshed with the gear wheel (708) for transmission.

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