Large-torque power takeoff for vehicle
By designing an adjustment and locking mechanism, the energy loss and complex connection problems of traditional power take-offs when not in use are solved, convenient separation and stable connection are achieved, the service life is extended and operational efficiency is improved.
Patent Information
- Application Number
- CN202422731155.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-11
AI Technical Summary
Traditional high-torque automotive power take-offs cannot be simply and effectively separated from the engine shaft when not in use, resulting in energy loss and wear of mechanical components, and the connection operation is complicated and time-consuming.
A power take-off (PTO) is designed, which includes an adjustment mechanism and a locking mechanism. The PTO is conveniently separated from the engine shaft through the adjustment teeth and the adjustment rod, and the connection process of the output shaft is simplified through the locking mechanism.
This prevents component wear when the power take-off is not in use, simplifies connection operations, extends the service life of the power take-off and engine, and improves vehicle reliability and operating efficiency.
Smart Images
Figure CN223318385U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power take-offs, in particular to a high-torque vehicle power take-off. Background Art
[0002] A power take-off (PTO) is a set of one or more sets of speed-changing gears, also known as a power output device. For high-torque vehicle PTOs, their primary function is to extract power from the vehicle's powertrain (e.g., engine, motor, etc.) and output it to power auxiliary equipment on the vehicle (e.g., water pumps on fire trucks, compressors on garbage trucks, etc.).
[0003] For most traditional automotive power take-offs, the coupling operation is complex and not convenient enough. In actual application scenarios, when the power take-off is not needed, it is often impossible to simply and effectively achieve separation from the engine shaft, which may lead to unnecessary energy loss and wear of mechanical components. For example, when the vehicle is driving normally and the power take-off is not needed, due to the inconvenience of coupling operation, the engine shaft continues to drive the power take-off related components to rotate, increasing the load on the engine, while also accelerating the aging and damage of the internal components of the power take-off, reducing the service life of the entire power take-off, and may affect the fuel economy of the vehicle; in addition, traditional power take-offs also have shortcomings in output shaft connection. When the output shaft needs to be connected to the output pulley or connecting shaft, the operation process is cumbersome and complicated. This requires professional technicians to spend a lot of time on the connection operation, which brings inconvenience to related operations. Utility Model Content
[0004] (1) Technical problems solved
[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a high-torque vehicle power take-off.
[0006] (2) Technical solution
[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-torque vehicle power take-off, comprising a shell, a fitting cavity being provided inside the shell, an adjustment mechanism being rotatably connected to the shell, a power take-off mechanism being fixedly connected to the adjustment mechanism, the power take-off mechanism being located inside the fitting cavity, an output bin being fixedly connected to the left side of the shell, an output gear set being provided inside the output bin, an output mechanism being fixedly connected to the output gear set, and a locking mechanism being provided on the output mechanism.
[0008] As mentioned above, the adjustment mechanism includes an adjustment disk, a plurality of adjustment teeth are fixedly connected to the outer surface of the adjustment disk, an adjustment rod is threadedly connected to the adjustment disk, one end of the adjustment rod is fixedly connected to the adjustment baffle, and the other end of the adjustment rod is fixedly connected to the power take-off mechanism.
[0009] As mentioned above, the power take-off mechanism includes a power take-off guide plate, four power take-off guide edges are fixedly connected to the outer surface of the power take-off guide plate, a power take-off gear is rotatably connected to the power take-off guide plate, a power take-off coupling cavity is provided inside the power take-off gear, and an easy-to-card groove is provided inside the power take-off coupling cavity.
[0010] As mentioned above, the power take-off guide plate is fixedly connected to the adjusting rod, and the power take-off guide plate is slidably connected to the inner surface of the engaging cavity through the power take-off guide edge.
[0011] As mentioned above, the output mechanism includes an output shaft, a fastening thread is provided on the surface of the output shaft, a fastening sleeve is threadedly connected to the surface of the output shaft, an output block is fixedly connected to the output shaft, and a fastening disk is slidably connected to the surface of the output block.
[0012] As mentioned above, the locking mechanism includes a locking cavity, which is opened inside the output card block. A locking slide is slidably connected inside the locking cavity, a locking block is fixedly connected to the top of the locking slide, and three locking springs are fixedly connected to the bottom of the locking slide.
[0013] As mentioned above, the housing and the output bin are both fixedly connected with a mounting plate, the mounting plate is fixedly connected with a buffer pad, and the buffer pad is made of rubber.
[0014] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:
[0015] First, the present invention incorporates an adjustment mechanism that works in conjunction with the power take-off mechanism. When the power take-off is not in use, the adjustment disc does not need to be disassembled. Simply turn the adjustment tooth to rotate the adjustment disc, causing it to rotate on the back of the housing. A threaded connection allows the adjustment rod to undergo linear motion due to the restriction of the power take-off mechanism. The adjustment rod is fixedly connected to the power take-off guide disc, and the outer surface of the power take-off guide disc is fixedly connected to the power take-off guide rib, ensuring linear movement of the power take-off guide disc. The power take-off gear on the power take-off guide disc is close to the engine shaft and coupled via a special-shaped power take-off coupling cavity, ensuring that the power take-off gear rotates when the vehicle's engine shaft rotates. When the power take-off is temporarily unavailable, the adjustment disc can be reversed, driving the power take-off mechanism away from the engine shaft, preventing wear and tear caused by idling of the power take-off and reducing the risk of component damage due to excessive friction and unnecessary operation. This extends the service life of the power take-off and engine, reduces the frequency of repairs and component replacements, and improves the reliability and durability of the vehicle.
[0016] Second, the present invention is provided with a locking mechanism that facilitates output coupling. When the output block is fixed to the pulley or connecting shaft of the locking mechanism, the pulley's engaging portion is simply inserted into the output block. The locking block has an arc-shaped outer side and an inner side perpendicular to the output block's connecting surface. Therefore, when the pulley is inserted into the output block, the locking block retracts into the locking cavity. After the pulley is fully engaged with the output block, the locking block returns to its original position due to the elastic force of the locking spring. At this time, the fastening sleeve is rotated to push the fastening disk to slide on the output block, tightening the pulley and ensuring the stability of the coupling. The output shaft is connected to the output pulley or connecting shaft with the matching operation simple and convenient, which allows the operator to complete the connection without complex operating procedures and professional skills. Whether it is daily vehicle maintenance or when the power take-off needs to be quickly activated in an emergency, the output shaft can be easily connected, greatly saving operation time and labor costs.
[0017] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the back structure of the utility model;
[0020] Figure 3 It is a structural diagram of the adjustment mechanism and the power take-off mechanism of the utility model;
[0021] Figure 4 This is a schematic structural diagram of the output mechanism of the present utility model;
[0022] Figure 5 It is a structural diagram of the locking mechanism of the output mechanism of the utility model.
[0023] In the figure: 1. Housing; 2. Engaging cavity; 3. Adjusting mechanism; 301. Adjusting disk; 302. Adjusting teeth; 303. Adjusting rod; 304. Adjusting baffle; 4. Power take-off mechanism; 401. Power take-off guide disk; 402. Power take-off guide rib; 403. Power take-off gear; 404. Power take-off coupling cavity; 405. Easy-to-lock slot; 5. Output bin; 6. Output gear set; 7. Output mechanism; 701. Output shaft; 702. Fastening thread; 703. Fastening sleeve; 704. Fastening disk; 705. Output clamping block; 8. Locking mechanism; 801. Locking cavity; 802. Locking slide; 803. Locking block; 804. Locking spring; 9. Mounting plate; 10. Buffer pad. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] like Figure 1-5 As shown, the utility model provides a technical solution: a high-torque vehicle power take-off, comprising a shell 1, a fitting cavity 2 being provided inside the shell 1, an adjusting mechanism 3 being rotatably connected to the shell 1, a power take-off mechanism 4 being fixedly connected to the adjusting mechanism 3, the power take-off mechanism 4 being located inside the fitting cavity 2, an output bin 5 being fixedly connected to the left side of the shell 1, an output gear set 6 being provided inside the output bin 5, an output mechanism 7 being fixedly connected to the output gear set 6, and a locking mechanism 8 being provided on the output mechanism 7.
[0026] The adjusting mechanism 3 includes an adjusting disk 301, the outer surface of which is fixedly connected to a plurality of adjusting teeth 302, an adjusting rod 303 is threadedly connected to the adjusting disk 301, one end of the adjusting rod 303 is fixedly connected to an adjusting baffle 304, and the other end of the adjusting rod 303 is fixedly connected to the power take-off mechanism 4, the power take-off mechanism 4 includes a power take-off guide disk 401, the outer surface of the power take-off guide disk 401 is fixedly connected to four power take-off guide ridges 402, a power take-off gear 403 is rotatably connected to the power take-off guide disk 401, a power take-off coupling cavity 404 is provided inside the power take-off gear 403, an easy-to-card groove 405 is provided inside the power take-off coupling cavity 404, the power take-off guide disk 401 is fixedly connected to the adjusting rod 303, and the power take-off guide disk 401 is slidably connected to the inner surface of the mosaic cavity 2 through the power take-off guide ridges 402.
[0027] The output mechanism 7 includes an output shaft 701, a fastening thread 702 is provided on the surface of the output shaft 701, a fastening sleeve 703 is threadedly connected to the surface of the output shaft 701, an output card block 705 is fixedly connected to the output shaft 701, and a fastening disk 704 is slidably connected to the surface of the output card block 705. The locking mechanism 8 includes a locking cavity 801, the locking cavity 801 is provided inside the output card block 705, and a locking slide 802 is slidably connected inside the locking cavity 801. The top of the locking slide 802 is fixedly connected to the locking block 803, and the bottom of the locking slide 802 is fixedly connected to three locking springs 804.
[0028] By setting up an adjustment mechanism 3 that cooperates with the power take-off mechanism 4, there is no need to disassemble the power take-off when it is not in use. You only need to rotate the adjustment disk 301 by toggling the adjustment tooth 302, so that the adjustment disk 301 rotates on the back of the shell 1, and the adjustment rod 303 is restricted by the power take-off mechanism 4 to undergo linear movement through a threaded connection. Since the adjustment rod 303 is fixedly connected to the power take-off guide plate 401, and the outer surface of the power take-off guide plate 401 is fixedly connected to the power take-off guide edge 402 to ensure the linear movement of the power take-off guide plate 401, the power take-off gear 403 on the power take-off guide plate 401 is close to the engine shaft and is coupled through the special-shaped power take-off coupling cavity 404 to ensure that the power take-off gear 403 rotates when the engine shaft on the car rotates. When the power take-off is temporarily not needed, the adjustment disk 301 can be reversed, and the adjustment disk 301 drives the power take-off mechanism 4 away from the engine. When the gear train 705 is in a state of rotation and the gear 706 is engaged, the gear train 706 is engaged with the gear 707 and the engagement ring 708 is engaged, and the engagement ring 708 is engaged with the gear 707 and the engagement ring 709.
[0029] like Figure 1-2 As shown, the housing 1 and the output bin 5 are fixedly connected with a mounting plate 9, and the mounting plate 9 is fixedly connected with a buffer pad 10. The buffer pad 10 is made of rubber. The power take-off is fixedly installed by using fasteners through the fastening holes on the mounting plate 9. The power take-off is installed at the output shaft of the automobile engine. The buffer pad 10 can perform shock absorption and reduce noise.
[0030] Working principle: By setting up an adjustment mechanism 3 that cooperates with the power take-off mechanism 4, there is no need to disassemble the power take-off when it is not in use. You only need to turn the adjustment tooth 302 to rotate the adjustment disk 301, so that the adjustment disk 301 rotates on the back of the shell 1, and the adjustment rod 303 is restricted by the power take-off mechanism 4 to undergo linear movement through a threaded connection. Since the adjustment rod 303 is fixedly connected to the power take-off guide plate 401, and the outer surface of the power take-off guide plate 401 is fixedly connected to the power take-off guide edge 402 to ensure the linear movement of the power take-off guide plate 401, the power take-off gear 403 on the power take-off guide plate 401 is close to the engine shaft and is coupled through the special-shaped power take-off coupling cavity 404 to ensure that the power take-off gear 403 rotates when the engine shaft on the car rotates. When the power take-off is not needed temporarily, When the output block 705 is fixed with the pulley or the connecting shaft of the locking mechanism 8, the pulley coupling part 705 is directly inserted into the output block 705. The outer side of the locking block 803 is arc-shaped, and the inner side is perpendicular to the connecting surface of the output block 705. Therefore, when the pulley is inserted into the output block 705, the locking block 803 will retract into the locking cavity 801. After the pulley is completely stuck in the output block 705, the locking block 803 will be reset due to the elastic force of the locking spring 804. At this time, the fastening sleeve 703 is rotated again to push the fastening disk 704 to slide on the output block 705, tightening the pulley and ensuring the stability of its coupling.
[0031] It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate positions or location relationships based on the positions or location relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-torque vehicle power take-off, comprising a housing (1), characterized in that: A fitting cavity (2) is provided inside the housing (1); an adjusting mechanism (3) is rotatably connected to the housing (1); a power take-off mechanism (4) is fixedly connected to the adjusting mechanism (3); the power take-off mechanism (4) is located inside the fitting cavity (2); an output bin (5) is fixedly connected to the left side of the housing (1); an output gear set (6) is provided inside the output bin (5); an output mechanism (7) is fixedly connected to the output gear set (6); and a locking mechanism (8) is provided on the output mechanism (7).
2. A high-torque vehicle power take-off according to claim 1, characterized in that: The regulating mechanism (3) comprises an regulating disk (301), a plurality of regulating teeth (302) being fixedly connected to the outer surface of the regulating disk (301), an regulating rod (303) being threadedly connected to the regulating disk (301), one end of the regulating rod (303) being fixedly connected to an regulating baffle (304), and the other end of the regulating rod (303) being fixedly connected to a power take-off mechanism (4).
3. The high-torque vehicle power take-off according to claim 1, characterized in that: The power take-off mechanism (4) comprises a power take-off guide disc (401), four power take-off guide edges (402) are fixedly connected to the outer surface of the power take-off guide disc (401), a power take-off gear (403) is rotatably connected to the power take-off guide disc (401), a power take-off coupling cavity (404) is provided inside the power take-off gear (403), and an easy-clamping groove (405) is provided inside the power take-off coupling cavity (404).
4. The high-torque vehicle power take-off according to claim 3, characterized in that: The power take-off guide disc (401) is fixedly connected to the adjustment rod (303), and the power take-off guide disc (401) is slidably connected to the inner surface of the interlocking cavity (2) via the power take-off guide edge (402).
5. The high-torque vehicle power take-off according to claim 1, characterized in that: The output mechanism (7) comprises an output shaft (701), a fastening thread (702) is provided on the surface of the output shaft (701), a fastening sleeve (703) is threadedly connected to the surface of the output shaft (701), an output clamping block (705) is fixedly connected to the output shaft (701), and a fastening disk (704) is slidably connected to the surface of the output clamping block (705).
6. The high-torque vehicle power take-off according to claim 1, characterized in that: The locking mechanism (8) comprises a locking cavity (801), the locking cavity (801) being opened inside the output card block (705), a locking slide (802) being slidably connected inside the locking cavity (801), a locking block (803) being fixedly connected to the top of the locking slide (802), and three locking springs (804) being fixedly connected to the bottom of the locking slide (802).
7. The high-torque vehicle power take-off according to claim 1, characterized in that: A mounting plate (9) is fixedly connected to both the housing (1) and the output bin (5), a buffer pad (10) is fixedly connected to the mounting plate (9), and the buffer pad (10) is made of rubber.