Combined parking gear

Abstract

The utility model relates to the technical field of parking gears, and discloses a combined parking gear which comprises an outer tooth gear, a mounting groove is formed in the middle of the outer tooth gear, limiting grooves are symmetrically formed in the side walls of the mounting groove, and an inner tooth gear is mounted in the middle of the outer tooth gear through the mounting groove. Due to the arrangement of the external tooth gear, the internal tooth gear, the limiting assembly and the like, when teeth on the surface of the external tooth gear or teeth on the inner ring of the internal tooth gear are damaged, the external tooth gear and the internal tooth gear are convenient to disassemble, assemble and separate through the arrangement of the limiting assembly, and independent replacement of internal teeth and external teeth of the combined parking gear is achieved; the integral structure is prevented from being damaged partially, so that the maintenance cost is increased; the cooling fins made of copper are arranged in the grooves in the front surface and the rear surface of the outer tooth gear, the surfaces of the cooling fins are coated with heat conduction silicone grease, the cooling efficiency of the combined parking gear in the using process is further improved, and therefore the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of parking gears, in particular to a combined parking gear. Background Art

[0002] To apply the parking brake, press down on the brake pedal and pull the parking brake lever upward completely. To release the parking brake, press down on the brake pedal, pull the parking brake lever upward slightly, press the button on the handle end with your thumb, and then lower the parking brake lever to its original position. A combined parking gear is installed inside the car brake, and the parking gear is used in conjunction with the steel claw.

[0003] A Chinese patent document with announcement number CN217108099U provides a combined parking gear, including a gear plate, external teeth and internal teeth, wherein the external teeth are integrally formed on the outer wall of the gear plate, and the internal teeth are arranged on the inner surface of the gear plate. The upper surface of the gear plate is provided with an assembly groove, and the bottom of the assembly groove is filled with a graphene thermally conductive gasket, and the upper surface of the graphene thermally conductive gasket is provided with a heat dissipation component, and the heat dissipation component includes a copper-aluminum alloy gasket and a copper-aluminum alloy fin. The bottom of the assembly groove of the gear plate is filled with a graphene thermally conductive gasket, and the upper surface of the graphene thermally conductive gasket is provided with a heat dissipation component, and the heat dissipation component includes a copper-aluminum alloy gasket and a copper-aluminum alloy fin. When the gear plate is working, the heat on its surface is transferred to the copper-aluminum alloy gasket through the graphene thermally conductive gasket. The copper-aluminum alloy gasket is used in conjunction with the copper-aluminum alloy fin and the elliptical heat dissipation groove, which increases the contact area with the air, improves the heat dissipation effect, reduces the accumulation of heat, reduces the corrosion of the gear plate by heat, and extends the service life;

[0004] In the above scheme, the combined parking gear has an integrated structure of the inner and outer gears of the gear plate. When the teeth on the outer tooth surface or the inner tooth surface are damaged, they need to be replaced as a whole, thereby increasing the cost of maintenance and replacement and causing waste of resources. Therefore, the utility model designs a combined parking gear to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a combined parking gear to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined parking gear, comprising: an external gear, a mounting groove is provided in the middle position of the external gear, limiting grooves are symmetrically provided on the side walls of the mounting groove, an internal gear is installed in the middle of the external gear through the mounting groove, and limiting components are arranged on both sides of the internal gear and between the adjacent limiting grooves.

[0007] Preferably, the limit assembly includes: a movable groove, which is opened on the side wall of one side of the internal gear, a limit pin is movably installed inside the movable groove, and one end of the limit pin extends to the interior of the adjacent limit groove, a return spring is fixedly connected to the inner wall of the movable groove, and one end of the return spring is fixedly connected to the other end of the limit pin, a fixing bolt is threadedly installed in the vertical direction between one end of the limit pin and the limit groove, and both ends of the fixing bolt extend to the outside of the external gear.

[0008] Preferably, both sides of the limit pin are provided with sliding grooves, the inner wall of the movable groove is symmetrically fixedly connected with sliding blocks, and the limit pin is slidably installed on the sliding block on the inner wall of the movable groove through the sliding grooves on both sides.

[0009] Preferably, through grooves are symmetrically provided on the surface of the internal gear, and the through grooves are connected to the interior of the movable groove, and a pull pin is fixedly connected to the surface of the other end of the limit pin, and the pull pin extends to the interior of the through groove.

[0010] Preferably, grooves are provided on both the front and rear sides of the external gear, and a plurality of heat sinks are fixedly installed at equal intervals inside the groove along the circumference.

[0011] Preferably, the heat sink is made of copper, and the surface of the heat sink is coated with thermal grease.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model provides components such as an external gear, an internal gear and a limit assembly. When the teeth on the surface of the external gear or the teeth on the inner ring of the internal gear are damaged, the limit assembly is provided to facilitate the disassembly and separation of the external gear and the internal gear, so that the internal and external teeth of the parking gear can be replaced separately, thereby avoiding the overall replacement of the integrated structure after partial damage, which increases the maintenance cost;

[0014] 2. The utility model arranges components such as external gears, grooves and heat sinks, arranges copper heat sinks in the grooves on the front and rear surfaces of the external gears, and coats the surfaces with thermal conductive silicone grease, so as to further improve the heat dissipation efficiency of the combined parking gear during use, thereby extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a main schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the front cross-sectional view of the utility model;

[0017] Figure 3 For the utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 4 It is a bottom view schematic diagram of the utility model.

[0019] In the figure: 1. external gear; 101. mounting groove; 102. limiting groove; 2. internal gear; 3. limiting assembly; 301. movable groove; 302. limiting pin; 303. return spring; 304. fixing bolt; 4. groove; 5. heat sink; 6. through groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides an embodiment: a combined parking gear, comprising: an external gear 1, a mounting groove 101 is provided in the middle of the external gear 1, and a limiting groove 102 is symmetrically provided on the side wall of the mounting groove 101, an internal gear 2 is installed in the middle of the external gear 1 through the mounting groove 101, and a limiting assembly 3 is provided between the two sides of the internal gear 2 and the adjacent limiting grooves 102. The setting of the limiting assembly 3 facilitates the separate replacement of the inner and outer teeth of the combined parking gear, avoiding the overall replacement of the integrated structure after partial damage, and increasing the maintenance cost.

[0022] See also Figure 1-3In an embodiment of the utility model: the limit assembly 3 includes: a movable groove 301, the movable groove 301 is opened on the side wall of one side of the internal gear 2, a limit pin 302 is movably installed inside the movable groove 301, and one end of the limit pin 302 extends to the inside of the adjacent limit groove 102, a return spring 303 is fixedly connected to the inner wall of the movable groove 301, and one end of the return spring 303 is fixedly connected to the other end of the limit pin 302, a fixing bolt 304 is threadedly installed in the vertical direction between one end of the limit pin 302 and the limit groove 102, and both ends of the fixing bolt 304 extend to the outside of the external gear 1. When the teeth on the surface of the external gear 1 or the teeth on the inner ring of the internal gear 2 are damaged, first remove the two symmetrical fixing bolts 304 on the surface of the external gear 1, and pull the pull pin on the other end surface of the limit pin 302 to move the limit pin 302 into the movable groove 301, so that the limit pin 302 is released from the insertion of the limit groove 102. At this time, the external gear 1 and the internal gear 2 can be separated and replaced. After installing, put the internal gear 2 on the installation groove 101 in the middle of the external gear 1, and push one end of the limit pin 302 into the movable groove 301 by squeezing. The inner gear 2 can be installed in the mounting groove 101 after one end of the limit pin 302 moves into the movable groove 301. At this time, one end of the limit pin 302 is released from the squeeze and the return spring 303 elastically resets the limit pin 302 to push the inner end of the limit pin 302 to move into the inner part of the limit groove 102, thereby completing the limitation of the inner gear 2. When the fixing bolt 304 is installed in place, the position of the limit pin 302 is locked. In this way, the inner and outer teeth of the parking gear can be replaced separately, thereby avoiding the overall replacement of the integrated structure after partial damage, thereby increasing the maintenance cost.

[0023] See also Figure 2-3 In the embodiment of the utility model, both sides of the limit pin 302 are provided with sliding grooves, and the inner wall of the movable groove 301 is symmetrically fixed with sliders, and the limit pin 302 is slidably installed on the slider on the inner wall of the movable groove 301 through the sliding grooves on both sides. The limit pin 302 is slidably installed inside the movable groove 301, and the stability of the installation of the limit pin 302 is further improved.

[0024] See also Figure 1 In the embodiment of the utility model, the surface of the internal gear 2 is symmetrically provided with through grooves 6, and the through grooves 6 are connected to the inside of the movable groove 301, and the surface of the other end of the stop pin 302 is fixedly connected with a pull pin, and the pull pin extends to the inside of the through groove 6. The pull pin is provided to facilitate the movement of the stop pin 302 toward the inside of the movable groove 301, so that one end of the stop pin 302 is released from the stop groove 102, and the disassembly and replacement between the external gear 1 and the internal gear 2 is convenient.

[0025] See also Figure 1 and Figure 4In the embodiment of the utility model: grooves 4 are provided on both the front and rear sides of the external gear 1, and a plurality of heat sinks 5 are fixedly installed at equal intervals along the circumference inside the groove 4. The plurality of heat sinks 5 are evenly distributed inside the groove 4, so that the surface of the combined parking gear can dissipate heat evenly.

[0026] See also Figure 1 and Figure 4 In the embodiment of the utility model, the heat sink 5 is made of copper, and the surface of the heat sink 5 is coated with thermal grease. The heat sink is made of copper and coated with thermal grease, so as to further improve the heat dissipation efficiency of the combined parking gear during use, thereby extending the service life.

[0027] Working principle: During the long-term use of the combined parking gear, when the teeth on the surface of the external gear 1 or the teeth on the inner ring of the internal gear 2 are damaged, first remove the two symmetrical fixing bolts 304 on the surface of the external gear 1, and pull the pull pin on the other end surface of the limit pin 302 to move the limit pin 302 into the movable groove 301, so that the limit pin 302 is released from the insertion of the limit groove 102. At this time, the external gear 1 and the internal gear 2 can be separated and replaced. After installation, the internal gear 2 is mounted on the external gear. 1, one end of the limit pin 302 is pushed to move into the movable groove 301 by squeezing, and after one end of the limit pin 302 moves into the movable groove 301, the internal gear 2 can be installed in the installation groove 101. At this time, one end of the limit pin 302 is released from squeezing, and the limit pin 302 is pushed to move into the limit groove 102 under the elastic reset of the reset spring 303, so as to limit the internal gear 2. After the fixing bolt 304 is installed in place, the position of the limit pin 302 is locked. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A combined parking gear, comprising: An external gear (1) is characterized in that: a mounting groove (101) is provided in the middle of the external gear (1), and limiting grooves (102) are symmetrically provided on the side walls of the mounting groove (101); an internal gear (2) is installed in the middle of the external gear (1) through the mounting groove (101), and limiting components (3) are provided between the two sides of the internal gear (2) and the adjacent limiting grooves (102).

2. The combined parking gear according to claim 1, characterized in that: The limit assembly (3) comprises: a movable groove (301), the movable groove (301) being provided on a side wall of one side of the internal gear (2), a limit pin (302) being movably installed inside the movable groove (301), and one end of the limit pin (302) extending to the inside of the adjacent limit groove (102), a return spring (303) being fixedly connected to the inner wall of the movable groove (301), and one end of the return spring (303) being fixedly connected to the other end of the limit pin (302), a fixing bolt (304) being threadedly installed in a vertical direction between one end of the limit pin (302) and the limit groove (102), and both ends of the fixing bolt (304) extending to the outside of the external gear (1).

3. A combined parking gear according to claim 2, characterized in that: Slide grooves are provided on both sides of the limit pin (302), and the inner wall of the movable groove (301) is symmetrically fixedly connected with sliders. The limit pin (302) is slidably installed on the slider on the inner wall of the movable groove (301) through the slide grooves on both sides.

4. The combined parking gear according to claim 2, characterized in that: The surface of the internal gear (2) is symmetrically provided with through grooves (6), and the through grooves (6) are connected to the inside of the movable groove (301); the surface of the other end of the limit pin (302) is fixedly connected with a pull pin, and the pull pin extends to the inside of the through groove (6).

5. The combined parking gear according to claim 1, characterized in that: The front and rear sides of the external gear (1) are both provided with grooves (4), and a plurality of heat sinks (5) are fixedly installed at equal intervals along the circumference of the groove (4).

6. The combined parking gear according to claim 5, characterized in that: The heat sink (5) is made of copper, and the surface of the heat sink (5) is coated with thermal conductive silicone grease.

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