Engine belt power take-off transmission mechanism

Abstract

The utility model relates to the technical field of airport ground equipment, in particular to an engine belt power take-off transmission mechanism which comprises a synchronous belt pulley, a synchronous belt, an oil pump belt pulley, a rotating assembly, a concentric assembly and an oil pump assembly. The synchronous belt is adopted to meet driving of the high-power top-mounted hydraulic pump, the transmission power is large, the service life is long, slipping is not prone to occurring, stable oil output is guaranteed, the concentrically-arranged bearing seat is adopted, the rotating radial stress of a hydraulic pump shaft is reduced, and continuous and stable torque rotating speed is input from the belt pulley to the hydraulic pump. The use is available. Due to high-power transmission and high-rotating-speed input, long-time reliable operation of the hydraulic pump is guaranteed, and therefore the problem that a conventional belt transmission mechanism cannot operate at high power is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of airport ground equipment, in particular to an engine belt power take-off transmission mechanism. Background Art

[0002] Construction machinery with loadouts typically requires a power take-off port on the engine or transmission, allowing for direct access to a hydraulic pump or a power take-off drive shaft. Without a power take-off port, it's difficult to support the high power and torque demands of the loadout.

[0003] Conventional belt drives only support smaller power requirements. Higher power drives can easily lead to a short belt life, and the hydraulic pump shaft can be deformed due to stress, causing damage to the pulley or even the oil pump. Utility Model Content

[0004] The purpose of the utility model is to provide an engine belt power take-off transmission mechanism, aiming to solve the problem that conventional belt transmission mechanisms cannot operate under higher power.

[0005] To achieve the above-mentioned purpose, the utility model provides an engine belt power take-off transmission mechanism, comprising a synchronous pulley, a synchronous belt, an oil pump pulley, a rotating assembly, a concentric assembly and an oil pump assembly;

[0006] The synchronous belt is sleeved on the synchronous pulley and the oil pump pulley, the rotating assembly is installed on the oil pump pulley, the concentric assembly is installed on one side of the rotating assembly, and the oil pump assembly is installed on one side of the concentric assembly.

[0007] Wherein, the rotating assembly includes an auxiliary reinforcing plate and a rotating shaft. The auxiliary reinforcing plate is fixedly connected to the oil pump pulley and is located on one side of the oil pump pulley. The rotating shaft is fixedly connected to the auxiliary reinforcing plate and is located on one side of the auxiliary reinforcing plate.

[0008] Among them, the rotating assembly also includes two rolling bearings, a bearing sleeve, a mounting plate and a cover plate. The two rolling bearings are respectively fixedly connected to the rotating shaft and are respectively located around the rotating shaft. The bearing sleeve is fixedly connected to the two rolling bearings and is located on the side of the rolling bearing away from the rotating shaft. The mounting plate is fixedly connected to the bearing sleeve and is located on the side of the bearing sleeve away from the rolling bearing. The cover plate is fixedly connected to the mounting plate and is located on one side of the mounting plate.

[0009] Wherein, the rotating assembly further includes a spacer sleeve, which is fixedly connected to the bearing sleeve and is located between the two rolling bearings.

[0010] Among them, the oil pump assembly includes an oil pump mounting bracket, multiple bolt sleeves and an oil pump body. The oil pump mounting bracket is fixedly connected to the mounting plate and is located on one side of the mounting plate. The multiple bolt sleeves all pass through the outer shell of the oil pump body and are respectively threadedly connected to the oil pump mounting bracket and the mounting plate.

[0011] The present invention provides an engine belt power take-off transmission mechanism. The synchronous pulley and the oil pump pulley provide mounting conditions for the synchronous belt. The oil pump assembly can supply oil to the rotating assembly via the concentric assembly. Rotation of the oil pump pulley drives the rotating assembly to rotate on the concentric assembly. The present invention adds a set of pulleys at the front end of the engine crankshaft pulley for power take-off. This provides high torque and sustained output. The synchronous belt is used to drive a high-power upper hydraulic pump, delivering high power, a long life, and resistance to slippage, ensuring stable oil output. The concentrically arranged bearing seats reduce radial forces on the hydraulic pump shaft, ensuring a continuous and stable torque and speed input from the pulley to the hydraulic pump. This solution is suitable for belt-driven high-power hydraulic pumps, compressors, and low-power generators, offering flexible layout, easy installation, and high reliability. It can be used in applications where a dedicated power take-off port is not available and where engine efficiency is required. The high power transmission and high speed input ensure long-term, reliable operation of the hydraulic pump, thus resolving the issue of conventional belt drives being unable to operate at high power levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0013] Figure 1 The utility model is a structural diagram of an engine belt power take-off transmission mechanism.

[0014] Figure 2 It is a cross-sectional view of an engine belt power take-off transmission mechanism of the utility model.

[0015] In the figure: 1- synchronous pulley, 2- synchronous belt, 3- oil pump pulley, 4- auxiliary reinforcement plate, 5- rotating shaft, 6- cover plate, 7- rolling bearing, 8- spacer, 9- oil pump mounting bracket, 10- bolt sleeve rod, 11- oil pump body, 12- mounting plate, 13- bearing sleeve. DETAILED DESCRIPTION

[0016] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0017] See also Figure 1-Figure 2 The utility model provides an engine belt power take-off transmission mechanism, comprising a synchronous pulley 1, a synchronous belt, an oil pump pulley 3, a rotating assembly, a concentric assembly and an oil pump assembly;

[0018] The synchronous belt is mounted on the synchronous pulley 1 and the oil pump pulley 3, the rotating assembly is mounted on the oil pump pulley 3, the concentric assembly is mounted on one side of the rotating assembly, and the oil pump assembly is mounted on one side of the concentric assembly.

[0019] In this embodiment, the synchronous pulley 1 and the oil pump pulley 3 provide mounting conditions for the synchronous belt. The oil pump assembly can supply oil to the rotating assembly via the concentric assembly. Rotation of the oil pump pulley 3 drives the rotating assembly on the concentric assembly. This utility model adds a set of pulleys at the front end of the engine crankshaft pulley for power takeoff. This power takeoff torque is high and output is relatively continuous. The synchronous belt can meet the needs of driving a high-power upper hydraulic pump, providing high power transmission, long life, and low slippage, ensuring stable oil output. The concentric arrangement of the bearing seats reduces radial forces on the hydraulic pump shaft, ensuring a continuous and stable torque and speed input from the pulley to the hydraulic pump. This solution is suitable for belt-driven high-power hydraulic pumps, compressors, low-power generators, etc., offering flexible layout, easy installation, and high reliability. It can be used in applications where a dedicated power takeoff port is not available and where engine efficiency is required. The high power transmission and high speed input ensure long-term and reliable operation of the hydraulic pump, thus resolving the problem of conventional belt drives being unable to operate at high power levels.

[0020] Furthermore, the rotating assembly includes an auxiliary reinforcement plate 4 and a rotating shaft 5, the auxiliary reinforcement plate 4 is fixedly connected to the oil pump pulley 3 and is located on one side of the oil pump pulley 3, and the rotating shaft 5 is fixedly connected to the auxiliary reinforcement plate 4 and is located on one side of the auxiliary reinforcement plate 4.

[0021] In this embodiment, the auxiliary reinforcement plate 4 and the oil pump pulley 3 are fixed by bolts with evenly distributed threaded holes. The through hole of the auxiliary reinforcement plate 4 is a square rhombus, which ensures the axial driving force and the torque transmitted to the rotating shaft 5. A shaft hole with a flat key is provided at the end of the rotating shaft 5 for inserting the oil pump body 11.

[0022] Furthermore, the rotating assembly also includes two rolling bearings 7, a bearing sleeve 13, a mounting plate 12 and a cover plate 6. The two rolling bearings 7 are respectively fixedly connected to the rotating shaft 5 and are respectively located around the rotating shaft 5. The bearing sleeve 13 is fixedly connected to the two rolling bearings 7 and is located on the side of the rolling bearing 7 away from the rotating shaft 5. The mounting plate 12 is fixedly connected to the bearing sleeve 13 and is located on the side of the bearing sleeve 13 away from the rolling bearing 7. The cover plate 6 is fixedly connected to the mounting plate 12 and is located on one side of the mounting plate 12.

[0023] In this embodiment, the cover plate 6 is installed to seal and limit the outer rings of the rolling bearings 7. The rotating shaft 5 rotates concentrically through two sets of rolling bearings 7. A boss is designed at the center of the rotating shaft 5. The boss maintains a distance between the inner rings of the two sets of rolling bearings 7. The two sets of rolling bearings 7 ensure the concentricity of the rotating shaft 5 while increasing radial force, ensuring smooth input to the oil pump pulley 3 at the end of the rotating shaft 5.

[0024] Furthermore, the rotating assembly further includes a spacer sleeve 8 , which is fixedly connected to the bearing sleeve 13 and is located between the two rolling bearings 7 .

[0025] In this embodiment, the spacer sleeve 8 is used to stop the outer rings of the two groups of rolling bearings 7 in the bearing sleeve 13.

[0026] Furthermore, the oil pump assembly includes an oil pump mounting bracket, a plurality of bolt sleeves 10 and an oil pump body 11. The oil pump mounting bracket is fixedly connected to the mounting plate 12 and is located on one side of the mounting plate 12. The plurality of bolt sleeves 10 all pass through the outer shell of the oil pump body 11 and are threadedly connected to the oil pump mounting bracket and the mounting plate 12 respectively.

[0027] In this embodiment, the oil pump mounting bracket and mounting plate 12 are designed with lubricating oil holes on their sides for installing grease fittings. The bearing sleeve 13 has corresponding through-holes aligned with the lubricating oil holes for transferring lubricating oil. The spacer sleeve 8 is designed with four sets of through-holes evenly distributed throughout its center for the flow of lubricating oil. The lubricating oil ultimately lubricates the balls of the rolling bearing 7 regularly, ensuring high-speed operation and long-term reliability of the rolling bearing 7. Four sets of bolt sleeves 10 are installed between the flange holes of the oil pump body 11 and the oil pump mounting bracket and mounting plate 12. Long bolts are inserted into the sleeves to secure the housing of the oil pump body 11.

[0028] Beneficial effects:

[0029] 1. The utility model is suitable for belt-driven high-power hydraulic pumps or compressors, low-power generators, etc. It has flexible layout, low installation difficulty and high applicability and reliability.

[0030] Second, the utility model can be used when there is no dedicated power take-off port and the efficiency of the engine is improved. The high power transmission and high speed input ensure the long-term reliable operation of the hydraulic pump.

[0031] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. An engine belt power take-off transmission mechanism, characterized in that: It includes a synchronous pulley, a synchronous belt, an oil pump pulley, a rotating assembly, a concentric assembly and an oil pump assembly; The synchronous belt is sleeved on the synchronous pulley and the oil pump pulley, the rotating assembly is installed on the oil pump pulley, the concentric assembly is installed on one side of the rotating assembly, and the oil pump assembly is installed on one side of the concentric assembly.

2. The engine belt power take-off transmission mechanism according to claim 1, characterized in that: The rotating assembly includes an auxiliary reinforcing plate and a rotating shaft. The auxiliary reinforcing plate is fixedly connected to the oil pump pulley and is located on one side of the oil pump pulley. The rotating shaft is fixedly connected to the auxiliary reinforcing plate and is located on one side of the auxiliary reinforcing plate.

3. The engine belt power take-off transmission mechanism according to claim 2, characterized in that: The rotating assembly also includes two rolling bearings, a bearing sleeve, a mounting plate and a cover plate. The two rolling bearings are respectively fixedly connected to the rotating shaft and are respectively located around the rotating shaft. The bearing sleeve is fixedly connected to the two rolling bearings and is located on the side of the rolling bearing away from the rotating shaft. The mounting plate is fixedly connected to the bearing sleeve and is located on the side of the bearing sleeve away from the rolling bearing. The cover plate is fixedly connected to the mounting plate and is located on one side of the mounting plate.

4. The engine belt power take-off transmission mechanism according to claim 3, characterized in that: The rotating assembly further includes a spacer sleeve, which is fixedly connected to the bearing sleeve and is located between the two rolling bearings.

5. The engine belt power take-off transmission mechanism according to claim 3, characterized in that: The oil pump assembly includes an oil pump mounting bracket, a plurality of bolt sleeves and an oil pump body. The oil pump mounting bracket is fixedly connected to the mounting plate and is located on one side of the mounting plate. The plurality of bolt sleeves all pass through the outer shell of the oil pump body and are respectively threadedly connected to the oil pump mounting bracket and the mounting plate.

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