Automatic tensioner of automobile engine

Abstract

The invention relates to the technical field of tensioners, in particular to an automatic tensioner of an automobile engine, which comprises an engine body, a transmission belt mounted on the engine body, a fixed seat fixedly connected to the engine body, an oil seat fixedly connected to the fixed seat, and a tensioning mechanism fixedly connected to the lower side of the fixed seat. The waste oil cover is fixedly connected to the tensioning mechanism, the waste oil treatment mechanism is fixedly connected to the interior of the waste oil cover, the removing plates are arranged on the two sides of the waste oil treatment mechanism, and the lubricating mechanism is rotatably connected to the interior of the waste oil cover. The friction wheel can drive the oil spraying pipe to move in a reciprocating mode through transmission, lubricating oil is evenly sprayed to the transmission belt so as to reduce friction force and abrasion, and the service life of the tensioner, the belt and other transmission system components is prolonged by reducing friction and heat accumulation.

Description

Technical Field

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

[0002] The automobile engine is the core power device of the automobile. Its main function is to generate power by burning fuel and drive the car. The working principle, type and function of each component of the engine have a significant impact on the performance, efficiency and emissions of the car. The automobile engine is generally an internal combustion engine. Its basic working principle is to release a large amount of heat energy by burning a mixture of fuel (usually gasoline or diesel) and air, which is converted into mechanical energy to drive the various components of the engine, thereby driving the car.

[0003] In the engine, belts (such as timing belts and power transmission belts) are used to transmit power to drive other components, such as water pumps, generators, air conditioning compressors, power steering pumps, etc. In order to ensure that the belt works properly during operation, it is necessary to maintain appropriate tension. If the belt tension is too loose, it will cause the belt to slip, wear more, or even fall off; if the tension is too high, it may cause excessive load on the belt, tensioner, and even engine components, damaging the belt and system components.

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

[0005] In summary, the prior art lacks the technology for automatic lubrication and automatic replacement of lubricating oil for the automatic tensioner of the 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 purpose, the technical solution adopted by the present invention is: an automatic tensioner for an automobile engine, comprising an engine body, a transmission belt installed on the engine body, a fixing seat connected and fixedly arranged on the engine body, an oil seat connected and fixedly arranged on the fixing seat, a tensioning mechanism connected and fixedly arranged on the lower side of the fixing seat, a waste oil hood connected and fixedly arranged on the tensioning mechanism, a waste oil treatment mechanism connected and fixedly arranged inside the waste oil hood, removal plates are arranged on both sides of the waste oil treatment mechanism, and a lubrication mechanism is rotatably connected and arranged inside the waste oil hood.

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

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

[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 slidably provided in the slide groove, 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, the output end of the motor passes through the scraper and is fixedly connected to a toothed disc, one side of the toothed disc is fixedly connected to a toggle head, 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 gear is fixedly provided at one end of the removal plate connected to the fixed frame, a transmission wheel is fixedly provided at the top end of the universal joint A, and the transmission wheel is meshed with a 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 via 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, and a turntable is rotatably connected to the other end of the connecting rod. The turntable is rotatably connected to the waste oil hood, and a universal joint B is fixedly connected to one end of the turntable. An electric push rod B is fixedly connected to the bottom end of the universal joint B, and the electric push rod B is rotatably connected to the waste oil hood. A friction wheel is fixedly connected to the bottom end of the electric push rod B, 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 transmission, and the lubricating oil is evenly sprayed on 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 can be 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 dish, which can realize automatic regular cleaning and replacement of lubricating oil, 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 surface of the push plate, avoiding the accumulation of oil stains that may 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 It is a schematic diagram of the overall structure of an automatic tensioner of an automobile engine according to the present invention;

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

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

[0023] Figure 4 A schematic diagram of the tensioning mechanism structure of an automatic tensioner of an automobile engine according to the present invention;

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

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

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

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

[0028] The following are marked in the figure: 1. engine body; 2. transmission 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 wheel; 601. oil receiving pan; 602. mounting strip; 603. spring; 701. electric push rod A; 702. scraper; 703. slideway; 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 used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0030] like Figure 1-Figure 8 An automatic tensioner for an automobile engine is shown, comprising an engine body 1, a transmission belt 2 is mounted on the engine body 1, a fixing seat 3 is connected and fixedly arranged on the engine body 1, an oil seat 4 is connected and fixedly arranged on the fixing seat 3, a tensioning mechanism 5 is connected and fixedly arranged on the lower side of the fixing seat 3, a waste oil cover 6 is connected and fixedly arranged on the tensioning mechanism 5, a waste oil treatment mechanism 7 is connected and fixedly arranged inside the waste oil cover 6, removal plates 8 are arranged on both sides of the waste oil treatment mechanism 7, and a lubrication mechanism 9 is rotatably connected and arranged 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 connected and fixed to the fixing seat 3, and the other end of the hydraulic rod 501 is connected and fixed to an adjusting frame 502, and both ends of the adjusting frame 502 are rotatably connected to tensioning wheels 503, and the tensioning wheels 503 are arranged in sliding contact with the outer wall of the transmission belt 2. The hydraulic rod 501 drives the adjusting frame 502 to move downward, so that the two tensioning wheels 503 on the adjusting frame 502 tension the transmission belt 2.

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

[0033] like Figure 6 As shown, the waste oil treatment mechanism 7 includes an electric push rod A701, one end of which is connected and fixed to the waste oil cover 6, and the other end of which is connected and fixed to a scraper 702, which is arranged in sliding contact with the transmission belt 2, and a slide groove 703 is provided on the scraper 702, and a slider 704 is arranged in sliding cooperation in the slide groove 703, and a guide frame 705 is connected and fixed to the slider 704, and 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. 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 will be scraped off at this time.

[0034] The waste oil treatment mechanism 7 also includes a motor 707, which is connected and fixed to the scraper 702. The output end of the motor 707 passes through the scraper 702 and is connected and fixed to a toothed disc 708. A toggle head 709 is connected and fixed to one side of the toothed disc 708. A guide groove 710 is provided on the guide frame 705. The inner wall of the guide groove 710 is slidably matched with the outer wall of the toggle head 709. The motor 707 drives 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.

[0035] like Figure 7As shown, 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 connected and fixed to the scraper 702, and one side of the fixing frame 801 is rotatably connected to a universal joint A802.

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

[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 hood 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 hood 6, and an input end of the metering pump passes through the waste oil hood 6 and is fixedly connected to the oil seat 4 via a hose.

[0038] The fuel injection pipe 901 is rotatably connected with a connecting rod 902 in an eccentric structure, and a rotating disk 903 is rotatably connected with the other end of the connecting rod 902. The rotating disk 903 is rotatably connected with the waste oil cover 6. A universal joint B904 is fixedly connected with one end of the rotating disk 903, and an electric push rod B905 is fixedly connected with the bottom end of the universal joint B904. The electric push rod B905 is rotatably connected with the waste oil cover 6. A friction wheel 906 is fixedly connected with the bottom end of the electric push rod B905, and the friction wheel 906 is in friction contact with the transmission belt 2. The connecting rod 902 is rotatably connected with the rotating disk 903 at 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 drives 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 required 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 injection 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 and sprays it on the transmission belt 2 through the oil injection 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, and 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 strips 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 only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic tensioner for an automobile engine, comprising an engine body (1), characterized in that: A transmission belt (2) is installed on the engine body (1); a fixing seat (3) is connected and fixedly arranged on the engine body (1); an oil seat (4) is connected and fixedly arranged on the fixing seat (3); a tensioning mechanism (5) is connected and fixedly arranged on the lower side of the fixing seat (3); a waste oil cover (6) is connected and fixedly arranged on the tensioning mechanism (5); a waste oil treatment mechanism (7) is connected and fixedly arranged inside the waste oil cover (6); removal plates (8) are arranged on both sides of the waste oil treatment mechanism (7); and a lubrication mechanism (9) is rotatably connected and arranged inside the waste oil cover (6).

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

3. The automatic tensioner of an automobile engine according to claim 1, characterized in that: One end of the waste oil cover (6) is connected and fixedly arranged with the adjustment frame (502); an oil receiving dish (601) is arranged at the lower side of the waste oil cover (6); mounting strips (602) are slidably arranged at both sides of the top of the oil receiving dish (601); a spring (603) is connected and fixedly arranged at one end of the mounting strip (602); and the top of the mounting strip (602) is movably engaged with the bottom of the waste oil cover (6).

4. The automatic tensioner of an automobile engine according to claim 1, characterized in that: The waste oil treatment mechanism (7) comprises an electric push rod A (701), one end of which is connected and fixedly arranged with the waste oil cover (6), and the other end of which is connected and fixedly arranged with a scraper (702), and the scraper (702) is arranged in sliding contact with the transmission belt (2), and a sliding groove (703) is provided on the scraper (702), and a sliding block (704) is slidably arranged in the sliding groove (703), and a guide frame (705) is connected and fixedly arranged on the sliding block (704), and a push plate (706) is connected and fixedly arranged on the lower surface of the guide frame (705), and the two 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 of an automobile engine according to claim 4, characterized in that: The waste oil treatment mechanism (7) further comprises a motor (707), wherein the motor (707) is connected and fixedly arranged with the scraper (702), wherein the output end of the motor (707) passes through the scraper (702) and is connected and fixedly arranged with a toothed disc (708), wherein one side of the toothed disc (708) is connected and fixedly arranged with a toggle head (709), and a guide groove (710) is provided on the guide frame (705), wherein the inner wall of the guide groove (710) is slidably matched with the outer wall of the toggle head (709).

6. The automatic tensioner of an automobile engine according to claim 1, 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 connected and fixed 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 of an automobile engine according to claim 6, characterized in that: A worm (803) is fixedly connected to the bottom end of the universal joint A (802), a worm wheel (804) is fixedly connected to one end of the removal plate (8) connected to the fixed frame (801), and a transmission wheel (805) is fixedly connected to the top end of the universal joint A (802), and the transmission wheel (805) is meshed with a toothed disc (708) for transmission.

8. The automatic tensioner of an automobile engine according to claim 1, characterized in that: The lubricating mechanism (9) comprises an oil spray pipe (901), the oil spray pipe (901) being rotatably connected to the inner wall of the waste oil hood (6), one end of the oil spray pipe (901) being fixedly connected to a metering pump via a hose, the metering pump being fixedly connected to the waste oil hood (6), and an input end of the metering pump being fixedly connected to the oil seat (4) via a hose passing through the waste oil hood (6).

9. The automatic tensioner of an automobile engine according to claim 8, characterized in that: The fuel injection pipe (901) is provided with a connecting rod (902) in a rotatable connection in an eccentric structure, and a rotating disk (903) is provided at the other end of the connecting rod (902), and the rotating disk (903) is rotatably connected to the waste oil cover (6). A universal joint B (904) is fixedly provided at one end of the rotating disk (903), and an electric push rod B (905) is fixedly provided at the bottom end of the universal joint B (904), and the electric push rod B (905) is rotatably connected to the waste oil cover (6). A friction wheel (906) is fixedly provided at the bottom end of the electric push rod B (905), and the friction wheel (906) is provided in friction contact with the transmission belt (2).

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