Gearbox gear set

Abstract

The utility model discloses gearbox gear set relates to mixer truck component technical field, including gear set unit and the gear set unit of buffer unit, gear set unit includes the shell, the shell one side fixed mounting has the fin, the shell inside is equipped with driven gear assembly. The position of the pivot is kept at the center of the driving gear through the rebound control of the elastic sheet, and the pivot can drive the driving gear to rotate through the elastic sheet, the outer wall is screwed into through the mounting sleeve, the final installation and the limiting effect of the driving gear are played, the deformation of the pivot caused by high frequency vibration can be avoided, and the noise can also be reduced, the shell is accelerated heat dissipation through the fin, and the heat dissipation is carried out in cooperation with traditional oil, the heat dissipation efficiency is increased, whether the wear of the wear -resisting layer reaches the degree that the color developing ring can be seen, thereby judging the wear degree, the wear degree of the color developing ring can be observed, and the wear degree of the gear is judged conveniently when maintaining.

Description

Technical Field

[0001] This utility model relates to the field of mixer truck component technology, and in particular to gearbox gear sets. Background Technology

[0002] A concrete mixer truck is a special truck used to transport concrete for construction. Due to its shape, it is often called a snail truck or olive truck. These trucks are equipped with a cylindrical mixing drum to transport the mixed concrete. The mixer truck uses an automatic transmission, and the gear set inside the automatic transmission is mostly a planetary gear set.

[0003] 1. The wear of gears in the gear set of the transmission cannot be seen intuitively, which is very inconvenient during maintenance and easy to misdiagnose. In the future, the transmission may suddenly fail due to excessive wear of the gears.

[0004] 2. When the motor is running at high speed, the gear set in the gearbox is prone to overheating, and traditional oil cooling is not efficient enough.

[0005] 3. There is no buffer and shock absorption structure between the gear and the shaft, which can easily cause the shaft to deform due to high-frequency vibration, and also easily generate noise. Utility Model Content

[0006] This utility model provides a gearbox gear set, which aims to solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] The gearbox gear set includes the gear set unit and the damping unit:

[0009] The gear unit includes a housing, a heat sink fixedly mounted on one side of the housing, a driven gear assembly inside the housing, a driving gear meshing with the inner circumference of the driven gear assembly, and a planetary gear ring fixedly mounted on the inner wall of the housing.

[0010] The damping unit includes a mounting sleeve, a bearing is fixedly mounted inside the mounting sleeve, a rotating shaft is fixedly mounted inside the bearing, a spring is fitted to the outer wall of the rotating shaft, a transmission rod is slidably mounted inside the rotating shaft, and a threaded sleeve is fixedly mounted on the top of the drive gear.

[0011] In a preferred embodiment, the driven gear assembly includes a disk, a color-developing ring is fixedly mounted around the disk, teeth are fixedly mounted around the color-developing ring, and an anti-wear layer is fixedly mounted around the teeth.

[0012] In a preferred embodiment, the outer wall of the wear-resistant layer is rotatably mounted to the outer shell, and the periphery of the wear-resistant layer is meshed with the planetary gear ring.

[0013] In a preferred embodiment, the inner circumference of the mounting sleeve is threadedly installed with the threaded sleeve, and the end of the transmission rod away from the rotating shaft is fixedly installed on the drive gear.

[0014] In a preferred embodiment, the number of spring pieces is four, and the four spring pieces are evenly distributed in a circle and fixedly mounted on the drive gear.

[0015] In a preferred embodiment, the rotating shaft has a sliding groove inside, and the transmission rod is slidably installed with the rotating shaft through the sliding groove.

[0016] The gearbox gear set provided by this utility model has the following technical effects:

[0017] The spring-loaded spring controls the position of the shaft to remain at the center of the drive gear. At the same time, the spring-loaded spring facilitates the shaft to drive the drive gear to rotate. The mounting sleeve screws into the outer wall to provide final installation and limit for the drive gear, which can prevent the shaft from deforming due to high-frequency vibration and also reduce noise.

[0018] The heat sink accelerates heat dissipation from the outer casing, combined with traditional oil cooling, increasing heat dissipation efficiency. The wear level can be determined by observing whether the wear of the anti-wear layer reaches the point where the color ring is visible, thus making the wear level of the color ring observable and facilitating the assessment of gear wear during maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the side cross-sectional structure proposed in this utility model.

[0021] Figure 3 The present utility model proposes Figure 2 Enlarged structural diagram at point A in the middle.

[0022] Figure 4 This is a top view cross-sectional structural diagram of the present invention.

[0023] Figure 5 The present utility model proposes Figure 4 Enlarged structural diagram at point B.

[0024] In the attached diagram: 100, gear set unit; 200, shock absorption unit; 101, housing; 102, heat sink; 103, driven gear assembly; 103-1, anti-wear layer; 103-2, teeth; 103-3, color ring; 103-4, disc; 104, driving gear; 105, planetary gear ring; 201, mounting sleeve; 202, shaft; 203, spring; 204, transmission rod; 205, bearing; 206, threaded sleeve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Reference Figures 1-5 As shown, this utility model provides a gearbox gear set, including a gear set unit 100 and a damping unit 200:

[0028] The gear unit 100 includes a housing 101, a heat sink 102 fixedly installed on one side of the housing 101, and heat sink 102 assists in cooling oil to accelerate heat dissipation. A driven gear assembly 103 is provided inside the housing 101, and a driving gear 104 is meshed and installed inside the driven gear assembly 103. A planetary gear ring 105 is fixedly installed on the inner wall of the housing 101.

[0029] The damping unit 200 includes a mounting sleeve 201, a bearing 205 is fixedly mounted inside the mounting sleeve 201, a rotating shaft 202 is fixedly mounted inside the bearing 205, and a spring piece 203 is fitted to the outer wall of the rotating shaft 202. The spring piece 203 provides cushioning and keeps the rotating shaft 202 at the center of the drive gear 104. A transmission rod 204 is slidably mounted inside the rotating shaft 202. The transmission rod 204 transmits rotational power from the rotating shaft 202 to the drive gear 104. A threaded sleeve 206 is fixedly mounted on the top of the drive gear 104. The threaded sleeve 206 can easily fix the positions of the rotating shaft 202 and the drive gear 104.

[0030] In this embodiment, the spring plate 203 controls the position of the rotating shaft 202 to be kept at the center of the drive gear 104. At the same time, the spring plate 203 facilitates the rotation of the shaft 202 to drive the drive gear 104. The mounting sleeve 201 is screwed into the outer wall of the threaded sleeve 206, which plays a final installation and limiting role for the drive gear 104. This can prevent the shaft from deforming due to high-frequency vibration and also reduce noise. The heat sink 102 accelerates the heat dissipation of the outer shell 101. Combined with traditional oil for heat dissipation, the heat dissipation efficiency is increased. The wear degree is judged by whether the wear of the anti-wear layer 103-1 reaches the point where the color ring 103-3 can be seen. This allows the wear degree of the color ring 103-3 to be observed, which is convenient for judging the wear degree of the gear during maintenance.

[0031] In a preferred embodiment, the driven gear assembly 103 includes a disc 103-4, a color-developing ring 103-3 fixedly mounted around the disc 103-4, teeth 103-2 fixedly mounted around the color-developing ring 103-3, and an anti-wear layer 103-1 fixedly mounted around the teeth 103-2. In this embodiment, the anti-wear layer 103-1 is made of wear-resistant metal to reduce the wear coefficient, and the color-developing ring 103-3 is colored so that it can be seen when the wear reaches a certain level, making it convenient to observe the wear coefficient.

[0032] In a preferred embodiment, the outer wall of the wear-resistant layer 103-1 is rotatably mounted to the outer shell 101, and the periphery of the wear-resistant layer 103-1 is meshed with the planetary gear ring 105; in this embodiment, the internal structure of the wear-resistant layer 103-1 is rotatably mounted to the outer shell 101, and the internal structure of the wear-resistant layer 103-1 is meshed with the planetary gear ring 105.

[0033] In a preferred embodiment, the inner circumference of the mounting sleeve 201 is threadedly mounted to the threaded sleeve 206, and the end of the transmission rod 204 away from the rotating shaft 202 is fixedly mounted on the drive gear 104. In this embodiment, the drive gear 104 can be restricted to a specified position on the rotating shaft 202 by the threaded connection between the mounting sleeve 201 and the threaded sleeve 206.

[0034] In a preferred embodiment, there are four spring pieces 203, which are evenly distributed in a circle and fixedly mounted on the drive gear 104. In this embodiment, the spring force of the spring pieces 203 provides a buffering and shock absorption effect, and also helps to keep the rotating shaft 202 in the center of the drive gear 104.

[0035] In a preferred embodiment, a sliding groove is provided inside the rotating shaft 202, and the transmission rod 204 is slidably installed with the rotating shaft 202 through the sliding groove; in this embodiment, rotational power is transmitted from the rotating shaft 202 to the drive gear 104 through the transmission rod 204.

[0036] Working principle: In use, the heat sink 102 first accelerates the heat dissipation of the outer shell 101. The wear level is judged by whether the wear of the anti-wear layer 103-1 reaches the point where the color ring 103-3 can be seen. The spring 203 controls the position of the rotating shaft 202 to be kept at the center of the drive gear 104. At the same time, the spring 203 facilitates the rotation of the shaft 202 to drive the drive gear 104 to rotate. The mounting sleeve 201 is screwed into the outer wall of the threaded sleeve 206, which plays the role of final installation and limiting of the drive gear 104.

[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Substitutions may include replacements for some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the scope of protection of this utility model.

Claims

1. A gearbox gear set, comprising a gear set unit (100) and a damping unit (200), characterized in that: The gear unit (100) includes a housing (101), a heat sink (102) is fixedly installed on one side of the housing (101), a driven gear assembly (103) is provided inside the housing (101), a driving gear (104) is meshed and installed inside the driven gear assembly (103), and a planetary gear ring (105) is fixedly installed on the inner wall of the housing (101). The damping unit (200) includes a mounting sleeve (201), a bearing (205) is fixedly mounted inside the mounting sleeve (201), a rotating shaft (202) is fixedly mounted inside the bearing (205), a spring piece (203) is fitted to the outer wall of the rotating shaft (202), a transmission rod (204) is slidably mounted inside the rotating shaft (202), and a threaded sleeve (206) is fixedly mounted on the top of the drive gear (104).

2. The gearbox gear set according to claim 1, characterized in that, The driven gear assembly (103) includes a disk (103-4), a color ring (103-3) is fixedly installed around the disk (103-4), teeth (103-2) are fixedly installed around the color ring (103-3), and an anti-wear layer (103-1) is fixedly installed around the teeth (103-2).

3. The gearbox gear set according to claim 2, characterized in that, The outer wall of the wear-resistant layer (103-1) is rotatably mounted to the outer shell (101), and the periphery of the wear-resistant layer (103-1) is meshed with the planetary gear ring (105).

4. The gearbox gear set according to claim 1, characterized in that, The inner circumference of the mounting sleeve (201) is threadedly installed with the threaded sleeve (206), and the end of the transmission rod (204) away from the rotating shaft (202) is fixedly installed on the drive gear (104).

5. The gearbox gear set according to claim 1, characterized in that, The number of the spring pieces (203) is four, and the four spring pieces (203) are evenly distributed in a circle and fixedly installed on the drive gear (104).

6. The gearbox gear set according to claim 1, characterized in that, The rotating shaft (202) has a sliding groove inside, and the transmission rod (204) is slidably installed with the rotating shaft (202) through the sliding groove.

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