Engine oil electric pick structure capable of precisely controlling oil quantity

Abstract

The utility model belongs to the technical field of electric picks, and discloses an engine oil electric pick structure capable of precisely controlling oil mass, which comprises a gear box and an oil tank, a front cylinder is fixedly mounted at one end of the gear box, a working head is arranged at one end of the front cylinder far away from the gear box, and a transmission component for driving the working head to operate is arranged in the gear box. The oil tank is fixedly embedded in the gearbox, an oil adding mechanism is arranged at the bottom of the oil tank, and the transmission assembly can periodically control opening and closing of the oil adding mechanism during operation, so that engine oil in the oil tank is quantitatively added into the gearbox. Opening and closing of the oil adding mechanism are periodically controlled through the transmission assembly, quantitative adding of engine oil is achieved, the use amount of the engine oil is accurately controlled, engine oil waste is avoided, the manual engine oil adding frequency is reduced, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric pick, especially relates to a machine oil electric pick structure of precision control oil quantity. BACKGROUND

[0002] In the scene needing to carry out high strength breaking operation such as building demolition, road maintenance, mining, machine oil electric pick is one of commonly used tools. Machine oil electric pick is a handheld electric tool with single-phase series motor as power. It has a set of impact device inside, mainly consisting of eccentric shaft, connecting rod, gas piston and impact piston etc. Motor operation drives eccentric shaft rotation, and eccentric shaft drives gas piston reciprocating in cylinder through connecting rod, so that hammer head hits the tail end of tool with high impact frequency, thereby generating forward impact force, realizing breaking, chiseling, excavating, grooving and cutting operation to concrete, masonry structure, asphalt pavement etc. There are big problems in machine oil supply of traditional machine oil electric pick. The machine oil consumption mainly depends on the density of wool felt, and this oil quantity control mode relying on wool felt is extensive, leading to generally excessive machine oil consumption. Under normal circumstances, the machine oil filled in machine oil tank can not meet the lubrication demand of internal parts of electric pick during the whole service life.

[0003] This makes the user have to frequently reopen the oil tank to add machine oil, greatly increasing the operation complexity. Moreover, if the machine oil of incompatible brand is added by mistake during machine oil addition, it is easy to cause machine failure, influence normal use of electric pick, reduce work efficiency and increase maintenance cost.

[0004] Therefore, the utility model provides a machine oil electric pick structure of precision control oil quantity. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a machine oil electric pick structure of precision control oil quantity, so as to solve or at least alleviate one or more of the above problems and other aspects in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the main technical scheme including:

[0007] A machine oil electric pick structure of precision control oil quantity, including gear box and oil tank, the one end of gear box is fixedly installed with front cylinder, the one end away from gear box of front cylinder is provided with working head, the gear box is provided with transmission assembly for driving the operation of working head inside;

[0008] The oil tank is fixedly embedded in the gear box, the bottom of oil tank is provided with oil adding mechanism, and the transmission assembly can periodically control the opening and closing of oil adding mechanism during operation, so that the machine oil in the oil tank is added quantitatively into the gear box.

[0009] As preferred, the oil adding mechanism comprises an oil tank and a wool felt, the oil tank is fixedly connected to the bottom of the oil tank, the upper end of the wool felt is arranged in the oil tank, the lower end of the wool felt extends into the oil tank, one end of the oil tank is provided with an oil outlet hole, the oil outlet hole is slidably connected with an oil control valve, the oil tank is provided with a spring, one end of the spring is arranged on one end of the oil control valve, the oil tank is provided with a connecting plate, and the end of the spring away from the oil control valve is arranged on the connecting plate.

[0010] As preferred, the connecting plate is fixedly connected with an assembling rod on one side, and the end of the spring away from the oil control valve is sleeved on the assembling rod.

[0011] As preferred, the connecting plate is fixedly connected with a guide rod, and the oil control valve is provided with a guide groove, and the end of the guide rod away from the connecting plate is slidably connected in the guide groove.

[0012] As preferred, one end of the oil tank is provided with an opening, and the opening end of the oil tank is fixedly connected with a cover plate through a fixing screw, and the connecting plate is arranged on one side of the cover plate.

[0013] As preferred, the cover plate and the inner wall of the oil tank are provided with a first sealing ring, and the oil control valve and the inner wall of the oil tank are provided with a second sealing ring.

[0014] As preferred, the transmission assembly comprises a cylinder, a connecting rod and an internal hexagonal screw, the cylinder is slidably arranged in the front cylinder, the cylinder is slidably arranged with a piston, one end of the connecting rod is fixedly connected with the piston, the gear box is rotatably connected with an eccentric wheel, the end of the connecting rod away from the cylinder is rotatably sleeved on the eccentric shaft sleeve of the eccentric wheel through a ball bearing, and the lower end of the internal hexagonal screw is screwed on the eccentric wheel after penetrating the eccentric shaft sleeve, and the internal hexagonal screw can periodically extrude the oil control valve when rotating, so that the oil in the oil tank is quantitatively added into the gear box from the oil outlet hole.

[0015] As preferred, the bottom of the eccentric wheel is fixedly connected with a transmission shaft, and the lower end of the transmission shaft is rotatably connected with a transmission gear.

[0016] The utility model at least has the following beneficial effects:

[0017] (1) Precise control of oil, reduce cost: through the transmission assembly periodic control oil adding mechanism open and close, realize the quantitative addition of oil, accurate control of oil consumption, compared with the traditional electric grab rely on wool felt density to determine the oil consumption, avoid the waste of oil, reduce the frequency of addition, reduce the use cost, and can prevent the fault caused by the mismatch of oil grade, reduce the maintenance cost;

[0018] (2) Stable structure, reliable performance: the oil drain groove body, connecting plate, assembly rod, guide rod and other components of the oil adding mechanism cooperate with each other, the spring provides stable elastic force, and the sealing ring ensures the sealing, which ensures the stable work of the oil control valve, makes the lubrication system of the electric grab stable, guarantees the normal operation of the transmission assembly, improves the work reliability and stability of the electric grab, and prolongs the service life;

[0019] (3) Simple operation, wide application: automatic quantitative oil adding system, the operator does not need to add oil manually frequently, simplifies the operation process, reduces the technical requirement, the electric grab is suitable for high strength crushing operation scene such as building demolition, road repair, mine exploitation, can stably run in harsh environment, and has strong adaptability;

[0020] (4) Energy saving and environmental protection, in line with the trend: accurate control of oil reduces oil leakage and waste, reduces the pollution to the environment; stable and efficient transmission system reduces energy consumption, in line with the modern environmental protection and energy saving concept, conforms to the development trend of the industry, is more easily accepted and popularized in the current environmental protection, and is more easily accepted and popularized in the current environmental protection. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0022] Figure 1 It is a structure section structure schematic view of the electric grab with precise control of oil amount of the utility model;

[0023] Figure 2 It is an enlarged structure schematic view of A part in Figure 1

[0024] Figure 3 It is a structure schematic view of the oil tank in the utility model.

[0025] Explanation of reference numerals:

[0026] ​1, gear box; 2, front tube; 3, cylinder; 301, connecting rod; 3011, ball bearing; 302, piston; 303, eccentric wheel; 304, transmission shaft; 305, transmission gear; 306, hexagonal screw; 4, oil tank; 4011, oil drain groove body; 4012, oil outlet hole; 401, wool felt; 402, oil control valve; 4021, guide groove; 403, cover plate; 4031, first sealing ring; 404, connecting plate; 405, assembly rod; 406, guide rod; 407, fixing screw; 408, second sealing ring; 409, spring; 5, working head. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below with the accompanying drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

[0028] As Figures 1 to 3 shown, the embodiment of the utility model provides a precise control oil quantity's engine oil electric hoist structure, including gear box 1 and oil tank 4, gear box 1 one end fixed installation has front tube 2, and front tube 2 is away from the one end of gear box 1 and is provided with working head 5, and gear box 1 is provided with transmission assembly for driving working head 5 operation inside; oil tank 4 is fixedly embedded in gear box 1, and the bottom of oil tank 4 is provided with oil adding mechanism, and transmission assembly can periodically control oil adding mechanism opening and closing during operation, thereby the engine oil in oil tank 4 is quantitatively added to gear box 1.

[0029] Specifically, the oil adding mechanism includes oil drain groove body 4011 and wool felt 401, the oil drain groove body 4011 is fixedly connected at the bottom of oil tank 4, the upper end of wool felt 401 is arranged in the inside of oil tank 4, the lower end of wool felt 401 extends into the inside of oil drain groove body 4011, the one end of oil drain groove body 4011 is provided with oil outlet hole 4012, the oil outlet hole 4012 is slidably inserted with oil control valve 402, the inside of oil drain groove body 4011 is provided with spring 409, one end of spring 409 abuts against one end of oil control valve 402, the inside of oil drain groove body 4011 is provided with connecting plate 404, and one end of spring 409 away from oil control valve 402 abuts against connecting plate 404.

[0030] In use, the oil in the oil tank 4 penetrates into the oil discharge groove body 4011 through the wool felt 401, and when the transmission assembly is operated to a specific position, the oil control valve 402 is extruded. After the oil control valve 402 is extruded, the spring 409 is moved away from the oil outlet hole 4012, and at this time the oil outlet hole 4012 is opened, and the oil in the oil discharge groove body 4011 flows out from the oil outlet hole 4012 and is added to the gear box 1. When the extrusion force of the transmission assembly on the oil control valve 402 disappears, the spring 409 restores the elastic deformation and pushes the oil control valve 402 to block the oil outlet hole 4012 again to stop the oil addition. The wool felt 401 plays a role in filtering oil and ensures that the added oil is pure, while slowing down the penetration speed of the oil, which helps to realize quantitative addition.

[0031] Specifically, one side of the connecting plate 404 is fixedly connected with an assembly rod 405, and one end of the spring 409 away from the oil control valve 402 is sleeved on the assembly rod 405. The above design provides a mounting position for the spring 409 on the assembly rod 405, so that the spring 409 can be stably mounted in the oil discharge groove body 4011. The spring 409 sleeved on the assembly rod 405 will not be offset or twisted during compression and stretching, which ensures that the spring 409 exerts stable and consistent elastic force on the oil control valve 402, and further ensures that the oil control valve 402 can accurately control the opening and closing of the oil outlet hole 4012, and maintain the stability of the quantitative oil addition.

[0032] Specifically, the connecting plate 404 is fixedly connected with a guide rod 406, and the oil control valve 402 is provided with a guide groove 4021, and one end of the guide rod 406 away from the connecting plate 404 is slidingly inserted into the guide groove 4021. The above design, the guide rod 406 and the guide groove 4021 cooperate with each other to provide a guide function for the oil control valve 402 during extrusion and spring 409 pushing. Ensure that the oil control valve 402 can only slide linearly in the oil outlet hole 4012 along the direction of the guide rod 406, avoid the oil control valve 402 from being skewed during movement, ensure the sealing effect between the oil control valve 402 and the oil outlet hole 4012, and thus accurately control the oil addition amount.

[0033] Specifically, one end of the oil drain groove body 4011 is provided with an opening, and the opening end of the oil drain groove body 4011 is fixedly installed with a cover plate 403 through a fixing screw 407, and the connecting plate 404 abuts against one side of the cover plate 403. The above design, the cover plate 403 is installed at the opening end of the oil drain groove body 4011 through the fixing screw 407, which plays a role in closing the oil drain groove body 4011 and preventing oil leakage. At the same time, the cover plate 403 provides a support point for the connecting plate 404, so that the connecting plate 404 can be stably fixed in the oil drain groove body 4011, thereby ensuring the normal work of the spring 409, the guide rod 406 and other components, maintaining the stability of the oil adding mechanism, ensuring the reliability of the oil adding process, and facilitating the installation of the internal parts of the oil drain groove body 4011.

[0034] Specifically, the cover plate 403 and the inner wall of the oil drain groove body 4011 are provided with a first sealing ring 4031, and the oil control valve 402 and the inner wall of the oil drain groove body 4011 are provided with a second sealing ring 408. The above design, the first sealing ring 4031 enhances the sealing between the cover plate 403 and the oil drain groove body 4011, preventing oil leakage from the connection between the cover plate 403 and the oil drain groove body 4011. The second sealing ring 408 ensures the sealing between the oil control valve 402 and the inner wall of the oil drain groove body 4011, avoiding the leakage of oil from the gap between the oil control valve 402 and the oil drain groove body 4011 when the oil control valve 402 closes the oil outlet hole 4012, further improving the accuracy of the quantitative addition of oil.

[0035] Specifically, the transmission assembly includes a cylinder 3, a connecting rod 301 and an internal hexagonal screw 306, the cylinder 3 is slidingly arranged in the front barrel 2, the inside of the cylinder 3 is slidingly provided with a piston 302, one end of the connecting rod 301 is fixedly connected with the piston 302, the inside of the gear box 1 is rotatably connected with an eccentric wheel 303, the end of the connecting rod 301 away from the cylinder 3 is rotatably sleeved on the eccentric shaft sleeve of the eccentric wheel 303 through a ball bearing 3011, the lower end of the internal hexagonal screw 306 is threadedly fixed on the eccentric wheel 303 after penetrating the eccentric shaft sleeve, and the internal hexagonal screw 306 can periodically extrude the oil control valve 402 when rotating, thereby quantitatively adding the oil in the oil tank 4 from the oil outlet hole 4012 into the gear box 1.

[0036] The above design, eccentric wheel 303 rotates in the gear box 1, drive set in its eccentric shaft sleeve on the connecting rod 301 do eccentric motion. The movement of connecting rod 301 drive and its connected piston 302 in the cylinder 3 do reciprocating motion, the impact force generated by transmission to the working head 5, realize crushing operation. At the same time, with the rotation of eccentric wheel 303, fixed on the eccentric wheel 303 on the hexagonal screw 306 also rotates. When the hexagonal screw 306 rotates to a specific position, will be extruded control valve 402, make control valve 402 open oil hole 4012, realize the addition of oil. Eccentric wheel 303 every rotation, hexagonal screw 306 will be extruded control valve 402 once, so as to realize the quantitative addition of oil.

[0037] Specifically, the bottom of eccentric wheel 303 is fixedly connected with transmission shaft 304, and the lower end of transmission shaft 304 is rotatably penetrated through oil tank 4 and fixedly connected with transmission gear 305. The above design, eccentric wheel 303 is connected with transmission gear 305 through transmission shaft 304, and an external power source (such as a motor) drives transmission gear 305 to rotate, thereby driving transmission shaft 304 and eccentric wheel 303 to rotate synchronously.

[0038] Working principle:

[0039] The external power is transmitted to transmission shaft 304 through transmission gear 305, and drives eccentric wheel 303 to rotate in the gear box 1. The rotation of eccentric wheel 303 makes connecting rod 301 do eccentric motion, and drives piston 302 to reciprocate in cylinder 3, so as to drive working head 5 to carry out high-strength crushing operation. In the process of rotation of eccentric wheel 303, hexagonal screw 306 fixed on the eccentric shaft sleeve of eccentric wheel 303 periodically extrudes control valve 402. When hexagonal screw 306 extrudes control valve 402, control valve 402 overcomes the elastic force of spring 409, so that oil outlet hole 4012 is opened, and the oil in oil tank 4 filtered by wool felt 401 flows into gear box 1 to provide lubrication for the transmission assembly. After hexagonal screw 306 leaves control valve 402, spring 409 pushes control valve 402 to close oil outlet hole 4012, and the addition of oil is stopped.

[0040] The above description shows and describes several preferred embodiments of the utility model, but it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept disclosed herein by the above teaching or related technology or knowledge. The modification and change made by the person skilled in the art without departing from the spirit and scope of the utility model should be within the protection scope of the claims attached to the utility model.

Claims

1. A precision oil quantity control mechanism for an electric oil pump, characterized in that, Including gear box and oil tank, one end of the gear box is fixedly installed with front barrel, the front barrel is provided with working head away from one end of the gear box, the gear box is provided with transmission assembly for driving the working head to run; The oil tank is fixedly embedded in the gear box, the bottom of the oil tank is provided with an oil adding mechanism, and the transmission assembly can periodically control the oil adding mechanism to open and close during operation, so that the oil in the oil tank is quantitatively added to the gear box.

2. The oil volume precisely controlled oil electro-scoop structure according to claim 1, characterized in that: The oil adding mechanism comprises an oil drain groove body and a wool felt, the oil drain groove body is fixedly connected to the bottom of the oil tank, the upper end of the wool felt is arranged in the oil tank, the lower end of the wool felt extends into the inside of the oil drain groove body, an oil outlet hole is formed in one end of the oil drain groove body, a control valve is slidably inserted into the oil outlet hole, a spring is arranged in the oil drain groove body, one end of the spring abuts against one end of the control valve, and a connecting plate is arranged in the oil drain groove body.

3. The oil volume precisely controlled oil electro-scoop structure according to claim 2, characterized in that: One end of the spring away from the control valve is sleeved on the assembling rod.

4. The oil volume precisely controlled oil electro-scoop structure according to claim 3, characterized in that: The connecting plate is fixedly connected with a guide rod, and the control valve is provided with a guide groove.

5. The oil volume precisely controlled oil electro-scoop structure according to claim 4, characterized in that: One end of the oil drain groove body is open, and the open end of the oil drain groove body is fixedly installed with a cover plate through a fixing screw, and the connecting plate abuts against one side of the cover plate.

6. The oil volume precisely controlled oil electro-scoop structure according to claim 5, characterized in that: The first sealing ring is arranged between the cover plate and the inner wall of the oil drain groove body, and the second sealing ring is arranged between the control valve and the inner wall of the oil drain groove body.

7. The oil volume precisely controlled oil electro-scoop structure according to claim 2, characterized in that: The transmission assembly comprises a cylinder, a connecting rod and an internal hexagonal screw, the cylinder is slidably arranged in the front barrel, a piston is slidably arranged in the inside of the cylinder, one end of the connecting rod is fixedly connected with the piston, an eccentric wheel is rotatably connected in the inside of the gear box, the connecting rod is rotatably sleeved on the eccentric shaft sleeve of the eccentric wheel through a ball bearing at one end away from the cylinder, and the lower end of the internal hexagonal screw is threadedly fixed on the eccentric wheel after penetrating through the eccentric shaft sleeve.

8. The oil volume precisely controlled oil electro-scoop structure according to claim 7, characterized in that: The bottom of the eccentric wheel is fixedly connected with a transmission shaft, and the lower end of the transmission shaft is rotatably penetrated through the oil tank and fixedly connected with a transmission gear. The transmission shaft is rotatably penetrated through the oil tank and fixedly connected with a transmission gear.

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