Driven gear forge piece of gearbox

Abstract

The utility model relates to the field of movable gear forgings, and discloses a gearbox driven gear forgings which comprises a gear forgings body, a rotating shaft is connected to the center of the inner wall of the gear forgings body in a sliding mode, and a fixing sleeve is fixedly connected to the side wall of the gear forgings body. A plurality of conical clamping blocks are fixedly connected to the side wall of an end opening of the gear forge piece body, a plurality of grooves are formed in the side wall of the rotating shaft, the conical clamping blocks are matched with the grooves, a locking assembly is arranged between the gear forge piece body and the rotating shaft, and the locking assembly locks the rotating shaft through the conical clamping blocks. Compared with a traditional bolt fixing mode, through the clamping connection of the conical clamping blocks and the grooves and the action of the locking assemblies, the problems of looseness, fatigue fracture and the like caused by alternating loads are effectively solved, the connection stability between the gear forge piece and the rotating shaft is greatly improved, and the stability and reliability of transmission of a gearbox are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gear forging, in particular to a gearbox driven gear forging. BACKGROUND

[0002] The gearbox driven gear forging is a key component in the gearbox transmission system, which is processed by metal material through forging process. It has high strength, good wear resistance and toughness, plays an important role in transmitting power, changing speed and torque in the gearbox, and its quality and performance directly affect the overall operation efficiency and reliability of the gearbox.

[0003] Application No. 202222465514.7 discloses an automobile automatic gearbox parking gear forging. The automobile automatic gearbox parking gear forging is provided with a support assembly. Through the mutual cooperation between the structures in the support assembly, the inner ring can be assembled with the main gear through the combined mode of the installation groove, obtaining a complete parking gear forging. The inner and outer teeth of the parking gear can be machined separately, improving the production efficiency, reducing the material cost required during machining, reducing resource waste, and improving the practicability of the parking gear forging as a whole.

[0004] The above device uses bolt fixing mode between the gear forging and the shaft during use. The bolt is prone to loosening, fatigue fracture and other problems when bearing alternating load for a long time, resulting in connection failure of the gear and the shaft. Once the connection fails, the gearbox transmission will be unstable, abnormal vibration and noise will be generated, and the transmission efficiency will be reduced. Therefore, the utility model provides a gearbox driven gear forging. Utility model content

[0005] (I) Technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a gearbox driven gear forging, which solves the problem that the above device uses bolt fixing mode between the gear forging and the shaft during use. The bolt is prone to loosening, fatigue fracture and other problems when bearing alternating load for a long time, resulting in connection failure of the gear and the shaft. Once the connection fails, the gearbox transmission will be unstable, abnormal vibration and noise will be generated, and the transmission efficiency will be reduced.

[0007] (II) Technical scheme

[0008] To achieve the above-mentioned purposes, the utility model provides technical solutions as follows: A gearbox driven gear forge piece, including gear forge piece body, the gear forge piece body inner wall center place is connected with the pivot of sliding, the gear forge piece body side wall is connected with the fixed sleeve of fixedly connected, the gear forge piece body port side wall is connected with a plurality of conical clamping blocks of fixedly connected, there are a plurality of recesses in the pivot side wall, the conical clamping block is matched with recess, locking assembly is equipped between the gear forge piece body and pivot, and this locking assembly is locked to the pivot through conical clamping block.

[0009] Preferably, the pivot and the gear forge piece body are provided with a bolt, and the bolt is located on the fixed sleeve.

[0010] Preferably, the locking assembly further includes an annular movable ring, an inner clamping sleeve, and a conical clamping block. The rotating sleeve is movably sleeved on the outer wall of one end of the gear forge piece body. The conical clamping block is fixedly connected to the front end side wall of the gear forge piece body. The inner clamping sleeve is movably sleeved on the outer wall of the conical clamping block. The conical clamping block is provided with a plurality of groups and is distributed around the circumference of the front end side wall of the gear forge piece body. The inner clamping sleeve is located inside the rotating sleeve.

[0011] Preferably, the rotating sleeve side wall is fixed with an annular movable ring, and the gear forge piece body one end is provided with an annular movable groove. The annular movable ring is rotatably connected to the inner wall of the annular movable groove.

[0012] Preferably, the inner wall of the rotating sleeve is provided with internal threads, and the outer wall of the inner clamping sleeve is provided with external threads. The internal threads and the external threads are engaged.

[0013] Preferably, the front end side wall of the gear forge piece body is fixedly connected with a plurality of moving rods. A plurality of round holes are formed in the inner wall of the inner clamping sleeve. The outer wall of the moving rod is slidably connected to the inner wall of the round hole. The conical clamping block is provided with a slot.

[0014] Preferably, the inner wall of the inner clamping sleeve is provided with a slope. The slope is fixedly connected to the inner wall of the inner clamping sleeve and matched with the conical clamping block.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the utility model provides a gearbox driven gear forge piece, which has the following beneficial effects:

[0017] 1. Compared with the traditional bolt fixing mode, the gearbox driven gear forge piece effectively avoids problems such as loosening and fatigue fracture caused by alternating load, greatly improves the connection stability between the gear forge piece and the pivot, and ensures the stable and reliable transmission of the gearbox.

[0018] 2、The transmission passive gear forging is connected stably, abnormal vibration and noise caused by connection failure are reduced, wear of parts is reduced, and service life of the transmission passive gear forging and the whole transmission system is prolonged, and maintenance and replacement cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2 It is a sectional structure schematic view of the utility model;

[0021] Figure 3 It is a sectional structure schematic view of the utility model;

[0022] Figure 4 It is a sectional structure schematic view of the utility model;

[0023] Figure 5 It is Figure 4 A local enlarged schematic view in the of the utility model.

[0024] In the drawing: 1, gear forging body; 2, rotating shaft; 3, fixed sleeve; 4, bolt; 5, rotating sleeve; 6, recess; 7, annular movable ring; 8, annular movable groove; 9, internal thread; 10, external thread; 11, circular hole; 12, inner clamping sleeve; 13, moving rod; 14, conical clamping block; 15, slotted; 16, inclined surface. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] Please refer to Figures 1-5 A transmission passive gear forging, comprising a gear forging body 1, a rotating shaft 2 is slidably connected to the center of the inner wall of the gear forging body 1, a fixed sleeve 3 is fixedly connected to the side wall of the gear forging body 1, a plurality of conical clamping blocks 14 are fixedly connected to the side wall of the gear forging body 1, a plurality of recesses 6 are arranged on the side wall of the rotating shaft 2, the conical clamping blocks 14 are matched with the recesses 6, and a locking assembly is arranged between the gear forging body 1 and the rotating shaft 2, and the locking assembly locks the rotating shaft 2 through the conical clamping blocks 14. Compared with the traditional bolt fixing mode, the clamping of the conical clamping blocks 14 and the recesses 6 and the action of the locking assembly effectively avoid problems such as loosening and fatigue fracture caused by alternating load, greatly improve the connection stability between the gear forging and the rotating shaft, and ensure the stable and reliable transmission of the transmission.

[0027] The bolt 4 is arranged between the rotating shaft 2 and the gear forging body 1, is arranged on the fixing sleeve 3, and is used for fixing the rotating shaft 2 on the gear forging body 1 to preliminarily fix the gear forging body 1.

[0028] The locking assembly further comprises an annular movable ring 7, an inner clamping sleeve 12 and a conical clamping block 14. The rotating sleeve 5 is movably sleeved on the outer wall of one end of the gear forging body 1, the conical clamping block 14 is fixedly connected to the front end side wall of the gear forging body 1, the inner clamping sleeve 12 is movably sleeved on the outer wall of the conical clamping block 14, the conical clamping block 14 is provided with a plurality of groups and is distributed around the front end side wall of the gear forging body 1, and the inner clamping sleeve 12 is located inside the rotating sleeve 5. The slope 16 on the inner wall of the inner clamping sleeve 12 gradually exerts extrusion on the conical clamping block 14. Since the conical clamping block 14 is provided with a slot 15, the slot 15 gives the conical clamping block 14 a certain elastic deformation capacity. Under the extrusion of the slope 16, the conical clamping block 14 can be deformed and contracted along the slot 15, and then is tightly clamped on the groove 6.

[0029] The annular movable ring 7 is fixed to the side wall of the rotating sleeve 5, the annular movable groove 8 is arranged at one end of the gear forging body 1, and the annular movable ring 7 is rotationally connected to the inner wall of the annular movable groove 8. When the rotating sleeve 5 is rotated, since the rotating sleeve 5 is rotationally connected to the annular movable groove 8 at one end of the gear forging body 1 through the annular movable ring 7, the connecting mode ensures that the rotating sleeve 5 can stably rotate around the gear forging body 1, and provides a power source for the movement of the inner clamping sleeve 12.

[0030] The inner wall of the rotating sleeve 5 is provided with an inner thread 9, the outer wall of the inner clamping sleeve 12 is provided with an outer thread 10, and the inner thread 9 is engaged with the outer thread 10. With the rotation of the rotating sleeve 5, the inner thread 9 on the inner wall of the rotating sleeve 5 and the outer thread 10 on the outer wall of the inner clamping sleeve 12 are matched with each other. According to the thread transmission principle, the inner clamping sleeve 12 starts to move towards the side wall of the gear forging body 1.

[0031] The front end side wall of the gear forging body 1 is fixedly connected with a plurality of moving rods 13, a plurality of round holes 11 are formed in the inner wall of the inner clamping sleeve 12, the outer wall of the moving rod 13 is slidably connected to the inner wall of the round hole 11, a slotted groove 15 is arranged on the conical clamping block 14, and a slope 16 is arranged on the inner wall of the inner clamping sleeve 12 and matched with the conical clamping block 14; with the rotation of the rotating sleeve 5, the internal thread 9 on the inner wall thereof cooperates with the external thread 10 on the outer wall of the inner clamping sleeve 12, according to the screw transmission principle, the inner clamping sleeve 12 starts to move towards the side wall of the gear forging body 1, the slope 16 on the inner wall of the inner clamping sleeve 12 gradually exerts a pressing action on the conical clamping block 14, and due to the slotted groove 15 arranged on the conical clamping block 14, the slotted groove 15 gives the conical clamping block 14 a certain elastic deformation capacity, under the pressing of the slope 16, the conical clamping block 14 can be deformed along the slotted groove 15, and then be tightly clamped on the groove 6, at the same time, the fixed moving rod 13 on the front end side wall of the gear forging body 1 slides in the round hole 11, which precisely guides the movement of the inner clamping sleeve 12, prevents the inner clamping sleeve 12 from deviating or shaking during the movement, and ensures that the conical clamping block 14 can be accurately clamped into the groove 6, thereby completing the locking connection between the gear forging body 1 and the rotating shaft 2.

[0032] Structure description: gear forging body: as a core component, made of metal material through forging process, with high strength, good wear resistance and toughness, the inner wall center is slidably connected with the rotating shaft 2, the side wall is fixedly connected with the fixed sleeve 3, and the port side wall is fixedly connected with a plurality of conical clamping blocks 14, which bears the key task of transmitting power, changing speed and torque in the gearbox, and its quality and performance have a decisive influence on the overall operation efficiency and reliability of the gearbox.

[0033] Rotating shaft: cooperated with the gear forging body 1, is an important shaft body for power transmission, the side wall is provided with a plurality of grooves 6 for clamping cooperation with the conical clamping block 14 to realize stable connection with the gear forging body 1 and ensure effective transmission of power, which continuously bears the action of torque and speed during the operation of the gearbox.

[0034] Fixed sleeve: connected to the side wall of the gear forging body 1, plays a certain auxiliary fixing and protection role, and also provides a basic support structure for the installation or connection of other related components, enhances the stability and reliability of the overall structure.

[0035] Bolt: located on the fixed sleeve 3, which can assist in fixing the gear forging body 1 and the rotating shaft 2 under certain circumstances, but is not the main connection method, and its existence can increase the redundancy and safety of the connection to a certain extent to prevent connection failure under unexpected circumstances.

[0036] Rotary sleeve: the movable sleeve is arranged on the outer wall of one end of the gear forging body 1, which is the key operating component for realizing the locking function. The rotation of the rotary sleeve can drive the internal related components to move, so that the conical clamping block 14 completes the locking or unlocking action of the rotating shaft 2. The structure and movement mode design is directly related to the effectiveness and convenience of the whole connection locking mechanism.

[0037] Groove: distributed on the side wall of the rotating shaft 2, matched with the shape of the conical clamping block 14, when the conical clamping block 14 is deformed under the action of the related components, it can be accurately clamped into the groove 6, forming a stable clamping structure, ensuring that the gear forging body 1 and the rotating shaft 2 are relatively fixed in the circumferential and axial directions, and effectively transmitting power.

[0038] Annular movable ring: fixed on the side wall of the rotary sleeve 5, connected with the annular movable groove 8 opened at one end of the gear forging body 1. This connection allows the rotary sleeve 5 to rotate stably around the gear forging body 1, while limiting the axial displacement of the rotary sleeve 5, ensuring its accuracy and reliability during rotation, providing a stable movement basis for subsequent locking operation.

[0039] Annular movable groove: located at one end of the gear forging body 1, providing a rotating track and space for the annular movable ring 7, cooperating with the annular movable ring 7 to ensure that the rotary sleeve 5 does not deviate or shake during rotation, so that the rotary motion of the rotary sleeve 5 can be accurately converted into the linear motion of the internal components, realizing effective control of the conical clamping block 14.

[0040] Internal thread: arranged on the inner wall of the rotary sleeve 5, matched with the external thread 10 on the outer wall of the inner clamping sleeve 12. According to the screw transmission principle, when the rotary sleeve 5 rotates, it can drive the inner clamping sleeve 12 to move linearly along the axial direction. This screw transmission method has the characteristics of simple structure, high transmission efficiency and controllable movement precision, and is the key transmission mechanism for realizing the locking and unlocking action of the conical clamping block 14.

[0041] External thread: located on the outer wall of the inner clamping sleeve 12, matched with the internal thread 9 on the inner wall of the rotary sleeve 5. When the rotary sleeve 5 rotates, the rotary motion is converted into the linear motion of the inner clamping sleeve 12 through the interaction between the threads, so that the inclined surface 16 on the inner wall of the inner clamping sleeve 12 can perform extrusion operation on the conical clamping block 14, realizing the locking connection of the gear forging body 1 and the rotating shaft 2.

[0042] Circular hole: provided in the inner wall of the inner sleeve 12, cooperates with the movable rod 13 fixed on the front end side wall of the gear forging body 1, the outer wall of the movable rod 13 is slidingly connected to the inner wall of the circular hole 11, and the circular hole 11 provides sliding space for the movable rod 13 during the entire locking and unlocking process. The movable rod 13 plays a guiding role for the linear motion of the inner sleeve 12, ensures that the inner sleeve 12 does not rotate or deviate during the movement process, and ensures that the conical clamping block 14 can accurately engage or disengage with the groove 6.

[0043] Inner sleeve: movably sleeved on the outer wall of the conical clamping block 14 and located inside the rotating sleeve 5, the inner wall of the inner sleeve 12 interacts with the conical clamping block 14, and when the rotating sleeve 5 rotates, the inner sleeve 12 moves axially through the transmission of the inner thread 9 and the outer thread 10. The inner wall slope 16 of the inner sleeve 12 extrudes the conical clamping block 14, causing the conical clamping block 14 to shrink and deform and be clamped into the groove 6, completing the locking action. In the unlocking process, the inner sleeve 12 moves in the opposite direction, releasing the extrusion on the conical clamping block 14.

[0044] Movable rod: fixed on the front end side wall of the gear forging body 1, the outer wall of the movable rod 13 is slidingly connected to the inner wall of the circular hole 11, and the movable rod 13 always remains in a fixed position during the entire operation of the device. Through sliding in the circular hole 11, the movable rod 13 provides accurate guidance for the linear motion of the inner sleeve 12, ensuring the linearity and stability of the movement of the inner sleeve 12, thereby ensuring that the engagement or disengagement between the conical clamping block 14 and the groove 6 can be smoothly performed.

[0045] Conical clamping block: fixed on the port side wall of the gear forging body 1, provided with a plurality of groups and distributed around the circumference of the front end side wall of the gear forging body 1, the shape of the conical clamping block matches the groove 6, and in the normal state, it has a certain opening angle. When extruded by the inner wall slope 16 of the inner sleeve 12, due to the presence of the slot 15 on the conical clamping block 14, the conical clamping block 14 can shrink and deform along the slot 15, thereby being clamped into the groove 6, achieving locking of the rotating shaft 2 and ensuring stable connection between the gear forging body 1 and the rotating shaft 2. It is a key locking element in the connection structure.

[0046] Slot: located on the conical clamping block 14, giving the conical clamping block 14 a certain elastic deformation capability. When extruded by the inner wall slope 16 of the inner sleeve 12, the slot 15 can cause the conical clamping block 14 to shrink in its direction, thereby changing the outer diameter of the conical clamping block 14, allowing it to smoothly engage or disengage the groove 6. This elastic deformation design makes the entire connection and locking structure more flexible, reliable, and easy to operate and maintain.

[0047] The slope is fixedly connected to the inner wall of the inner clamping sleeve 12 and matches the tapered clamping block 14, when the rotating sleeve 5 drives the inner clamping sleeve 12 to move, the slope 16 exerts extrusion force on the tapered clamping block 14, so that the tapered clamping block 14 is deformed and clamped into the groove 6, realizing the locking function, the angle, shape and size of the slope 16 directly affect the extrusion effect on the tapered clamping block 14 and the smooth progress of the entire locking action.

[0048] Working principle

[0049] The gear forging body 1 is sleeved on the outside of the rotating shaft 2, so that the tapered clamping block 14 is preliminarily aligned with the groove 6 on the side wall of the rotating shaft 2, at this time, the rotating sleeve 5 is rotated, since the rotating sleeve 5 is rotationally connected with the annular movable groove 8 at one end of the gear forging body 1 through the annular movable ring 7, this connection mode ensures that the rotating sleeve 5 can stably rotate around the gear forging body 1, providing power source for the movement of the inner clamping sleeve 12, with the rotation of the rotating sleeve 5, the internal thread 9 on the inner wall thereof cooperates with the external thread 10 on the outer wall of the inner clamping sleeve 12, according to the screw transmission principle, the inner clamping sleeve 12 starts to move towards the side wall of the gear forging body 1, the slope 16 on the inner wall of the inner clamping sleeve 12 gradually exerts extrusion force on the tapered clamping block 14, since the tapered clamping block 14 is provided with the slot 15, the slot 15 endows the tapered clamping block 14 with certain elastic deformation capacity, under the extrusion of the slope 16, the tapered clamping block 14 can be deformed and contracted along the slot 15, and then tightly clamped in the groove 6. At the same time, the movable rod 13 fixed on the front end side wall of the gear forging body 1 slides in the circular hole 11, accurately guiding the movement of the inner clamping sleeve 12, preventing the inner clamping sleeve 12 from deviating or shaking during the movement, ensuring that the tapered clamping block 14 can be accurately clamped into the groove 6, completing the locking connection of the gear forging body 1 and the rotating shaft 2.

[0050] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A forged passive gear for a gearbox, comprising a gear forging body (1), wherein a rotating shaft (2) is slidably connected to the center of the inner wall of the gear forging body (1), and a fixing sleeve (3) is fixedly connected to the side wall of the gear forging body (1), characterized in that, Also includes: The gear forging body (1) has several conical clamping blocks (14) fixedly connected to its port sidewall. The shaft (2) has several grooves (6) on its sidewall. The conical clamping blocks (14) match the grooves (6). A locking component is provided between the gear forging body (1) and the shaft (2). The locking component locks the shaft (2) through the conical clamping blocks (14).

2. The forged passive gear of a gearbox according to claim 1, characterized in that: A bolt (4) is provided between the rotating shaft (2) and the gear forging body (1), and the bolt (4) is located on the fixing sleeve (3).

3. The forged passive gear of a gearbox according to claim 1, characterized in that: The locking assembly also includes an annular movable ring (7), an inner clamping sleeve (12), and a conical clamping block (14). The rotating sleeve (5) is movably sleeved on the outer wall of one end of the gear forging body (1). The conical clamping block (14) is fixedly connected to the front side wall of the gear forging body (1). The inner clamping sleeve (12) is movably sleeved on the outer wall of the conical clamping block (14). The conical clamping block (14) has several sets and is distributed around the circumference of the front side wall of the gear forging body (1). The inner clamping sleeve (12) is located inside the rotating sleeve (5).

4. A forged passive gear for a gearbox according to claim 3, characterized in that: The rotating sleeve (5) has an annular movable ring (7) fixed on its side wall. The gear forging body (1) has an annular movable groove (8) at one end. The annular movable ring (7) is rotatably connected to the inner wall of the annular movable groove (8).

5. A forged passive gear for a gearbox according to claim 4, characterized in that: The inner wall of the rotating sleeve (5) is provided with an internal thread (9), and the outer wall of the inner clamping sleeve (12) is provided with an external thread (10). The internal thread (9) and the external thread (10) mesh with each other.

6. A forged passive gear for a gearbox according to claim 5, characterized in that: The front side wall of the gear forging body (1) is fixedly connected to several moving rods (13), the inner wall of the inner clamping sleeve (12) is provided with several round holes (11), the outer wall of the moving rod (13) is slidably connected to the inner wall of the round hole (11), and the conical clamping block (14) is provided with a slot (15).

7. A forged passive gear for a gearbox according to claim 6, characterized in that: The inner wall of the inner clamping sleeve (12) is provided with an inclined surface (16), which is fixedly connected to the inner wall of the inner clamping sleeve (12) and matches the conical clamping block (14).

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