Heat-resistant differential gear with locking function

Abstract

The utility model discloses a kind of heat-resistant differential gear with locking function, it is related to differential gear technical field, including driving shaft, the outer surface of the driving shaft is provided with positioning slot and is slidably sleeved with locking sleeve, the side of locking sleeve is fixedly connected with differential gear, the inside of differential gear is provided with four heat dissipation through slots around the outside of locking sleeve, the inside of locking sleeve is provided with positioning fixing assembly, positioning fixing assembly includes locating block, by the setting of locating block, the positioning between driving shaft and locking sleeve can be facilitated, thereby the relative position of gear and driving shaft can be quickly calibrated, locking screw can be simultaneously cooperated to facilitate the fixing of locking sleeve and driving shaft, so that the positioning installation between differential gear and driving shaft is facilitated, so as to solve the problem that traditional differential gear is inconveniently positioned and installed with driving shaft, so that the differential gear can be better used.

Description

Technical Field

[0001] This utility model relates to the field of differential gear technology, and in particular to a heat-resistant differential gear with locking function. Background Technology

[0002] In the power transmission system of a diesel engine, the differential gear is a key component for torque distribution and speed regulation. Its performance directly affects the stability of the engine's power output and the overall reliability of the engine. Diesel engines are known for their high torque and heavy load operation. During operation, they are accompanied by strong vibrations and shocks and complex changes in working conditions, which places stringent requirements on the connection strength and stability between the differential gear and the drive shaft.

[0003] Currently, patent publication number CN217762001U describes a novel differential gear with a locking function. By placing a ring sleeve on the outside of a square protrusion and utilizing the elasticity of a spring, a limiting pin can be automatically reset, locking it into the inside of the ring sleeve to fix the drive wheel. Further rotation of the screw compresses the annular pad, pushing the limiting pin out of the ring sleeve to release the limiting pin and allow for disassembly. The operation is simple and convenient, allowing for easy disassembly and replacement, saving costs, and facilitating maintenance and use.

[0004] While the above solution can use a limit pin to easily fix the drive wheel, the connection structure between the drive wheel and the drive shaft in the above solution lacks a positioning design during the installation of the drive wheel. As a result, it is difficult to quickly calibrate the relative position of the drive wheel and the drive shaft during the installation process, which makes it inconvenient to position and install the differential gear. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a heat-resistant differential gear with locking function. This can solve the problem that the connection structure between the drive wheel and the drive shaft in the above solution lacks a positioning design, making it difficult to quickly calibrate the relative position of the drive wheel and the drive shaft during installation, thus making it inconvenient to position and install the differential gear.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat-resistant differential gear with locking function, comprising a drive shaft, a positioning groove on the outer surface of the drive shaft and a locking sleeve slidably fitted thereon, a differential gear fixedly connected to one side of the locking sleeve, four heat dissipation grooves annularly formed inside the differential gear around the outside of the locking sleeve, a positioning and fixing assembly provided inside the locking sleeve, the positioning and fixing assembly comprising a positioning block, the top end of the positioning block being slidably connected to the top end of the inner wall of the locking sleeve, the outer surface of the positioning block being slidably adapted to the inner wall of the positioning groove, a through groove being formed inside the positioning block, two limiting slide plates being slidably connected inside the through groove, and sliding grooves being formed on both sides of the positioning block, the interiors of the two sliding grooves being respectively connected to the interiors of the through grooves, and locking sliders being slidably connected inside the two sliding grooves.

[0007] Preferably, the opposite ends of the two locking sliders are both beveled ends, and one side of each locking slider is fixedly connected to one end of the corresponding limiting slide plate.

[0008] Preferably, the top end of the locking sleeve is provided with a threaded groove, and a locking screw is threadedly connected inside the threaded groove, with the bottom end of the locking screw threaded through the inside of the groove.

[0009] Preferably, the bottom end of the locking screw is located above the opposite inclined ends of the two locking sliders, and the bottom end of the locking screw is spherical.

[0010] Preferably, two pull plates are slidably connected to one side of the positioning block, and the two pull plates are respectively fixedly connected to one end of the corresponding limiting slide plate.

[0011] Preferably, the inner wall of the positioning groove is provided with fixing grooves on both sides, and the interior of the two fixing grooves is slidably adapted to one end of the corresponding locking slider.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the heat-resistant differential gear with locking function, through the setting of the positioning block, can facilitate the positioning between the drive shaft and the locking sleeve, thereby enabling quick calibration of the relative position of the gear and the drive shaft. At the same time, in conjunction with the locking screw, the locking sleeve and the drive shaft can be easily fixed, thus facilitating the positioning and installation of the differential gear and the drive shaft. This solves the problem of the inconvenience of positioning and installing the traditional differential gear with the drive shaft, thereby enabling the differential gear to be used better. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of a heat-resistant differential gear with locking function according to the present invention. Figure 2 For the present utility model Figure 1Enlarged view of point A in the image; Figure 3 This is a schematic diagram of the internal structure of the locking sleeve of this utility model; Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point B in the image.

[0014] Reference numerals in the attached diagram: 1. Drive shaft; 2. Locking sleeve; 3. Differential gear; 4. Heat dissipation groove; 5. Threaded groove; 6. Locking screw; 7. Positioning groove; 8. Fixing groove; 9. Positioning block; 10. Through groove; 11. Limiting slide plate; 12. Pull plate; 13. Slide groove; 14. Locking slider. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of this utility model. Preferred embodiments of this utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, enabling a person to intuitively and vividly understand each technical feature and overall technical solution of this utility model. However, they should not be construed as limiting the scope of protection of this utility model. In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships 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 limiting this utility model.

[0016] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the order of the indicated technical features. In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution.

[0017] Please see Figure 1-4This utility model provides a technical solution: a heat-resistant differential gear with locking function, including a drive shaft 1. The outer surface of the drive shaft 1 has a positioning groove 7 and a locking sleeve 2 is slidably sleeved thereon. A differential gear 3 is fixedly connected to one side of the locking sleeve 2. The differential gear 3 has four heat dissipation grooves 4 circumferentially formed around the outside of the locking sleeve. A positioning and fixing component is provided inside the locking sleeve 2. The positioning and fixing component includes a positioning block 9. The top end of the positioning block 9 is slidably connected to the top end of the inner wall of the locking sleeve 2. The outer surface of the positioning block 9 is slidably adapted to the inner wall of the positioning groove 7. A through groove 10 is formed inside the positioning block 9. Two limiting slide plates 11 are slidably connected inside the through groove 10. Slide grooves 13 are formed on both sides of the positioning block 9. The interior of the two slide grooves 13 are respectively connected to the interior of the through groove 10. Locking sliders 14 are slidably connected inside the two slide grooves 13.

[0018] Furthermore, the opposite ends of the two locking sliders 14 are both beveled ends, and one side of each locking slider 14 is fixedly connected to one end of the corresponding limiting slide plate 11.

[0019] Furthermore, the top of the locking sleeve 2 is provided with a threaded groove 5, and the inside of the threaded groove 5 is connected to a locking screw 6. The bottom end of the locking screw 6 is threaded through the inside of the through groove 10. The bottom end of the locking screw 6 is located above the opposite inclined ends of the two locking sliders 14, and the bottom end of the locking screw 6 is spherical.

[0020] Furthermore, two pull plates 12 are slidably connected to one side of the positioning block 9, and the two pull plates 12 are respectively fixedly connected to one end of the corresponding limiting slide plate 11.

[0021] Furthermore, fixing grooves 8 are provided on both sides of the inner wall of the positioning groove 7, and the interior of the two fixing grooves 8 are respectively adapted to slide with one end of the corresponding locking slider 14.

[0022] Furthermore, during the installation of the differential gear 3 and the drive shaft 1, the positioning block 9 is aligned with the inside of the positioning groove 7, and then the positioning block 9 slides into the inside of the positioning groove 7, thus facilitating the locking sleeve 2 to drive the differential gear 3 for installation and positioning. At the same time, the inside of the locking sleeve 2 slides on the surface of the drive shaft 1. After the locking sleeve 2 is positioned, the two locking sliders 14 are aligned with the inside of the two fixing grooves 8 respectively. Then, the locking screw 6 is rotated, and then the locking screw 6 rotates downward, and then the locking screw 6 presses downward. The inclined ends of the two locking sliders 14 then enter the interior of the two fixing grooves 8 respectively, thereby fixing and limiting the positioning block 9 inside the positioning groove 7. The positioning block 9 facilitates the positioning between the drive shaft 1 and the locking sleeve 2. At the same time, in conjunction with the locking screw 6, it facilitates the fixing of the locking sleeve 2 and the drive shaft 1, thereby facilitating the positioning and installation between the differential gear 3 and the drive shaft 1, thus locking the differential gear 3 and the drive shaft 1, thereby completing the locking process.

[0023] Furthermore, when it is necessary to disassemble the differential gear 3, the locking screw 6 is rotated in the opposite direction to move it upward, thereby eliminating the squeezing force on the two locking sliders 14. Then, the two pull plates 12 are pulled, and the pull plates 12 will drive the corresponding limiting slide plates 11 to cause the corresponding locking sliders 14 to slide relative to each other in the through groove 10, thereby causing the two locking sliders 14 to slide out from the inside of the two fixing grooves 8, thereby releasing the fixation on the locking sleeve 2, thus making it convenient to remove the differential gear 3 and the locking sleeve 2 from the drive shaft 1.

[0024] Furthermore, when a large amount of heat is generated during the operation of the differential gear 3, the four heat dissipation channels 4 can increase the contact area between the differential gear 3 and the air, accelerate the dissipation of heat, and at the same time, the air can flow inside the differential gear 3 through the heat dissipation channels 4 to carry away the heat generated during operation, effectively reducing the temperature of the differential gear 3, thereby achieving heat resistance.

[0025] Structural Description: Drive shaft 1: As the starting component for power transmission of the differential gear, it provides rotational power input to the differential gear 3. The positioning groove 7 opened on its outer surface is the basic structure for achieving precise positioning and installation of the differential gear 3 and drive shaft 1, which determines the installation position and direction of the differential gear 3 on the drive shaft 1.

[0026] Positioning groove 7: It is formed on the outer surface of the drive shaft 1 and is used to cooperate with the positioning block 9 to provide precise positioning for the installation of the locking sleeve 2 and the differential gear 3, ensuring the accuracy of the installation position of the differential gear 3 on the drive shaft 1. Locking sleeve 2: It is slidably sleeved on the outer surface of the drive shaft 1, and the differential gear 3 is fixedly connected on one side, which serves to connect the drive shaft 1 and the differential gear 3. At the same time, the positioning and fixing components inside it can lock and fix the differential gear 3 and the drive shaft 1 to ensure the stability of power transmission. Differential gear 3: As a key component for power transmission and distribution, it meshes with other gears to distribute and transmit the power of the drive shaft 1, achieving power output at different speeds. The heat dissipation slots 4 inside it can effectively reduce the heat generated during operation. Heat dissipation channel 4: Four channels are formed inside the differential gear 3 and around the outside of the locking sleeve 2. By increasing the contact area between the differential gear 3 and the air, the air circulation is accelerated, the heat generated during operation is carried away, the temperature of the differential gear 3 is effectively reduced, and its heat resistance and service life are improved. Positioning block 9: During installation, it slides into the positioning groove 7 to guide and position the locking sleeve 2 and differential gear 3, ensuring accurate installation. Through groove 10: It is opened inside the positioning block 9 to provide space for the sliding of the limiting slide plate 11 and the locking slider 14, so that the locking slider 14 can extend and retract with the cooperation of the through groove 10 and the slide groove 13, thereby completing the fixing and disassembly of the differential gear 3. Limiting slide plate 11: It slides in the through groove 10 and is fixedly connected to the locking slider 14. By sliding, it drives the locking slider 14 to move, thereby realizing the engagement and disengagement of the locking slider 14 and the fixed groove 8, and thus controlling the locking and unlocking of the differential gear 3. Slide 13: Provides guidance and support for the sliding of locking slider 14, ensuring that locking slider 14 can accurately slide into and out of fixing groove 8, thereby achieving stable fixing of differential gear 3. Locking slider 14: Under the pressure of the locking screw 6, it can slide into the fixing grooves 8 on both sides of the inner wall of the positioning groove 7 of the drive shaft 1, thereby fixing and limiting the positioning block 9, and then firmly installing the differential gear 3 on the drive shaft 1. Threaded groove 5: It is opened at the top of the locking sleeve 2 and is used to connect with the locking screw 6. By rotating the locking screw 6, the lifting and lowering of the locking screw 6 can be controlled, thereby squeezing or loosening the locking slider 14, realizing the fixing and disassembly of the differential gear 3. Locking screw 6: Threaded to the threaded groove 5, its bottom end extends into the through groove 10 and is spherical, located above the opposing inclined ends of the two locking sliders 14. When the locking screw 6 is rotated, its bottom end presses against the inclined end of the locking slider 14 to fix it in place; rotating it in the opposite direction releases the pressure, facilitating disassembly. Pull plate 12: When disassembling the differential gear 3, pulling the pull plate 12 can cause the limit slide plate 11 and the locking slider 14 to retract and slide into the through groove 10, so that the locking slider 14 slides out of the fixed groove 8 and releases the fixation of the locking sleeve 2. Fixed groove 8: When the locking slider 14 slides into the fixed groove 8, the positioning block 9 can be fixed and limited, thereby firmly installing the differential gear 3 on the drive shaft 1 and ensuring the reliability of power transmission.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A heat-resistant differential gear with locking function, comprising a drive shaft (1), characterized in that: The outer surface of the drive shaft (1) is provided with a positioning groove (7) and a locking sleeve (2) is slidably sleeved thereon. A differential gear (3) is fixedly connected to one side of the locking sleeve (2). The differential gear (3) is provided with four heat dissipation grooves (4) in a ring around the outside of the locking sleeve. A positioning and fixing component is provided inside the locking sleeve (2). The positioning and fixing component includes a positioning block (9). The top of the positioning block (9) is slidably connected to the top of the inner wall of the locking sleeve (2). The outer surface of the positioning block (9) is slidably adapted to the inner wall of the positioning groove (7). A through groove (10) is provided inside the positioning block (9). Two limiting slide plates (11) are slidably connected inside the through groove (10). Slide grooves (13) are provided on both sides of the positioning block (9). The interior of the two slide grooves (13) is connected to the interior of the through groove (10). Locking sliders (14) are slidably connected inside the two slide grooves (13).

2. The heat-resistant differential gear with locking function according to claim 1, characterized in that: The opposite ends of the two locking sliders (14) are both beveled ends, and one side of each locking slider (14) is fixedly connected to one end of the corresponding limiting slide plate (11).

3. A heat-resistant differential gear with locking function according to claim 1 or 2, characterized in that: The top end of the locking sleeve (2) is provided with a threaded groove (5), and the inside of the threaded groove (5) is connected to a locking screw (6). The bottom end of the locking screw (6) is threaded through the inside of the through groove (10).

4. A heat-resistant differential gear with locking function according to claim 3, characterized in that: The bottom end of the locking screw (6) is located above the opposite inclined ends of the two locking sliders (14), and the bottom end of the locking screw (6) is spherical.

5. A heat-resistant differential gear with locking function according to claim 1 or 2, characterized in that: Two pull plates (12) are slidably connected to one side of the positioning block (9), and the two pull plates (12) are respectively fixedly connected to one end of the corresponding limiting slide plate (11).

6. A heat-resistant differential gear with locking function according to claim 1, characterized in that: The positioning groove (7) has fixing grooves (8) on both sides of its inner wall. The interior of the two fixing grooves (8) is slidably adapted to one end of the corresponding locking slider (14).

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