Parking device

Abstract

The utility model discloses a parking device, relates to the technical field of parking, and aims to solve the technical problems that the parking device needs larger driving force and is smaller in torque, the parking device comprises a rear shell and a front shell which are connected with each other, a motor is arranged in the rear shell, a double-cycloid speed reducer is arranged on one side of the motor, the driving end of the motor is connected with the input end of the double-cycloid speed reducer, and the driving end of the motor is connected with the output end of the double-cycloid speed reducer. A worm is arranged in the front shell, worm teeth of a fan-shaped structure are meshed with the periphery of the worm, one end of the worm is connected with the output end of the double-cycloid speed reducer, a spiral part on the worm is formed by splicing a plurality of discontinuous blocks, the worm is composed of a main rod and a plurality of spiral blocks, and connecting structures are arranged between the spiral blocks and the main rod. A reduction gear is replaced by a double-cycloid speed reduction structure, transmission matching of the worm and the worm teeth is matched, and stable fixing of a connecting structure is combined through split composition design of the worm, so that the double-cycloid speed reduction mechanism has the advantages that large driving force and torsion are achieved through a motor with small driving force, and maintenance convenience is high.

Description

Technical Field

[0001] The utility model relates to the technical field of parking, and more particularly to a parking device. Background Art

[0002] A parking brake is a braking mechanism used to prevent a car from moving and potentially causing dangerous situations such as landslides. Existing parking brakes primarily consist of a motor, a reduction gear, and a transmission structure. However, using a reduction gear requires a large motor driving force and relatively low torque. Therefore, we propose a parking brake. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art, meet practical needs, and provide a parking device to solve the technical problem that the current parking device requires a large driving force but has a small torque.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a parking device, comprising a rear shell and a front shell connected to each other, a motor is arranged inside the rear shell, a double cycloid reducer is arranged on one side of the motor, the motor driving end is connected to the input end of the double cycloid reducer, a worm is arranged inside the front shell, the outer periphery of the worm is meshed with worm teeth of a fan-shaped structure, one end of the worm is connected to the output end of the double cycloid reducer, the worm part on the worm is composed of a plurality of discontinuous blocks, the worm consists of a main rod and a plurality of worm blocks, and a connecting structure is provided between the worm block and the main rod.

[0005] Preferably, the rear shell is composed of a main shell, an intermediate layer and a bottom shell, an electrical connector is provided between one side of the bottom shell and the intermediate layer, the electrical connector is connected to the motor, and the area between the intermediate layer and the bottom shell is in contact with the outer periphery of the motor.

[0006] Preferably, the motor, the double cycloid reducer and the outer periphery of the worm are all provided with a plurality of stabilizing bushings, and the center of the worm gear sector is fixed to the external actuator rod.

[0007] Preferably, the plurality of spiral blocks are designed with the same spiral trajectory, and the plurality of spiral blocks fit tightly together.

[0008] Preferably, the connection structure includes a limiting screw groove and an inlet screw groove opened on the outer periphery of the main rod, the inlet screw groove is connected to the limiting screw groove and is located at the end position, and a plurality of sliding seats are provided inside the limiting screw groove.

[0009] Preferably, the number of the plurality of sliding seats corresponds to that of the volute blocks and they are fixedly connected, a screw hole is provided on the sliding seat, and the volute block is provided with a threaded rod passing through the sliding seat and threadedly connected to the main rod.

[0010] Preferably, a fixing sleeve is threadedly fixed to the end of the main rod, and one side of the fixing sleeve is fitted with the end of the volute block.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model adopts a double cycloid reduction structure to replace the reduction gear, and cooperates with the transmission of the worm and worm gear to have greater torsional force and driving force, and realizes the conversion of a small driving force motor into a large driving force structure through a double cycloid reducer, thereby solving the problem that the parking device requires a large driving force but has a small torque.

[0013] 2. The utility model also adopts the design of splitting and assembling the worm, and then combines the limiting cooperation of the worm block, the sliding seat and the limiting screw groove with the fixation of the threaded rod. Thus, through the limiting cooperation of the groove and the fixation of the threaded rod, and then with the sleeve constraint of the fixing sleeve, it is possible to replace it according to the damaged part, and the replacement process does not require the entire part to be dismantled, which greatly improves the convenience of maintenance and further solves the problem of maintenance convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the split structure in the utility model;

[0016] Figure 3 For this utility model Figure 2 A magnified view of the structure at center A;

[0017] Figure 4 This is a schematic diagram of the structure of the worm in the utility model;

[0018] Figure 5 This is a schematic diagram of the split structure of the connection structure in the utility model.

[0019] Explanation of the numbers in the figure: 1. rear housing; 2. front housing; 3. motor; 4. double cycloid reducer; 5. worm; 6. worm gear; 7. connection structure; 8. electrical connection; 9. stabilizing sleeve; 10. fixing sleeve;

[0020] 101, main shell; 102, middle layer; 103, bottom shell;

[0021] 501, main rod; 502, volute block;

[0022] 701, limiting screw groove; 702, inlet screw groove; 703, sliding seat; 704, threaded rod. DETAILED DESCRIPTION

[0023] like Figures 1 to 5As shown, the present invention relates to a parking device, comprising a rear shell 1 and a front shell 2 connected to each other, the rear shell 1 is composed of a main shell 101, an intermediate layer 102 and a bottom shell 103, an electrical connector 8 is provided between one side of the bottom shell 103 and the intermediate layer 102, the electrical connector 8 is composed of a circuit board, circuit components and lines, the area between the intermediate layer 102 and the bottom shell 103 is a concave-convex design, the inner periphery of the concave-convex is provided with a motor 3, the electrical connector 8 is connected to the motor 3, a double cycloid reducer 4 is provided on one side of the motor 3, and the double cycloid reducer 4 adopts multiple The engagement of the small teeth replaces the needle-shaped pin pin, which has stronger stability. The driving end of the motor 3 is connected to the input end of the double cycloid reducer 4. A worm 5 is provided inside the front housing 2. The outer periphery of the worm 5 is meshed with a fan-shaped worm gear 6. One end of the worm 5 is connected to the output end of the double cycloid reducer 4. The outer periphery of the motor 3, the double cycloid reducer 4 and the worm 5 are all provided with a number of stabilizing bushings 9. The center of the fan surface of the worm gear 6 is fixed to the external actuator rod. The external actuator rod is selected according to the actual application. For example, if the car is manually parked, the actuator rod is the operating rod of the handbrake.

[0024] Thus, the motor 3 with small driving force is converted into a large driving force structure through the double cycloid reducer 4, and has stronger torque.

[0025] It is worth mentioning that this design can also be applied in more scenarios, especially in space-constrained environments, such as robot arms, space-constrained clamping parts, etc.

[0026] In the embodiment of the present invention, although the driving force is strengthened, the worm 5 is also subjected to greater force during its movement, and the spiral part on the periphery of the worm 5 is easily damaged. Moreover, since the two ends of the worm 5 pass through multiple components and are connected with bearings, if the entire worm 5 is replaced, it will not only be costly but also very troublesome during the replacement process. In view of this, the spiral part on the worm 5 is composed of multiple discontinuous blocks. The worm 5 is composed of a main rod 501 and multiple spiral blocks 502. A connecting structure 7 is provided between the spiral block 502 and the main rod 501. The connecting structure 7 includes A limiting screw groove 701 and an inlet screw groove 702 are provided on the outer periphery of the main rod 501. The inlet screw groove 702 is connected to the limiting screw groove 701 and is at an end position. A plurality of sliding seats 703 are provided inside the limiting screw groove 701. The plurality of sliding seats 703 correspond to the number of the volute block 502 and are fixedly connected. The inner circumferential cross-section of the inlet screw groove 702 is larger than the limiting screw groove 701, so that the sliding seat 703 can be removed from the inlet screw groove 702. A screw opening is provided on the sliding seat 703. A threaded rod 704 is provided on the volute block 502, which passes through the sliding seat 703 and is threadedly connected to the main rod 501.

[0027] To further enhance the installation stability, a fixing sleeve 10 is threadedly fixed to the end of the main rod 501. One side of the fixing sleeve 10 fits against the end of the volute block 502. The fixing sleeve 10 also blocks part of the inlet screw groove 702.

[0028] Working principle: when it is necessary to replace the damaged volute block 502, loosen the fixing sleeve 10 to expose the inlet screw groove 702, and then remove the corresponding number of threaded rods 704 (if the volute block 502 on the side is damaged, only one threaded rod 704 on the side needs to be removed), and the volute block 502 is rotated along the trajectory of the limiting screw groove 701. When it is rotated to the inlet screw groove 702, the volute block 502 can be taken out. After taking out the damaged volute block 502, a new volute block 502 is placed from the inlet screw groove 702 and screwed into the limiting screw groove 701. Then, the above reverse operation is performed to complete the replacement.

[0029] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A parking device, characterized in that: The invention comprises a rear shell (1) and a front shell (2) connected to each other, wherein a motor (3) is arranged inside the rear shell (1), a double cycloid reducer (4) is arranged on one side of the motor (3), a driving end of the motor (3) is connected to the input end of the double cycloid reducer (4), a worm (5) is arranged inside the front shell (2), a worm gear (6) with a fan-shaped structure is meshed on the outer periphery of the worm (5), one end of the worm (5) is connected to the output end of the double cycloid reducer (4), a spiral part on the worm (5) is composed of a plurality of discontinuous blocks, the worm (5) is composed of a main rod (501) and a plurality of spiral blocks (502), and a connecting structure (7) is provided between the spiral block (502) and the main rod (501).

2. A parking device according to claim 1, characterized in that: The rear shell (1) is composed of a main shell (101), an intermediate layer (102) and a bottom shell (103); an electrical connector (8) is provided between one side of the bottom shell (103) and the intermediate layer (102); the electrical connector (8) is connected to the motor (3); and the area between the intermediate layer (102) and the bottom shell (103) is in contact with the outer periphery of the motor (3).

3. The parking device according to claim 2, characterized in that: The outer peripheries of the motor (3), the double cycloid reducer (4) and the worm (5) are all provided with a plurality of stabilizing sleeves (9), and the sector center of the worm gear (6) is fixed to an external actuator rod.

4. The parking device according to claim 3, characterized in that: The plurality of spiral blocks (502) are designed with the same spiral trajectory, and the plurality of spiral blocks (502) are tightly fitted.

5. The parking device according to claim 4, characterized in that: The connection structure (7) comprises a limiting screw groove (701) and an inlet screw groove (702) provided on the outer periphery of the main rod (501); the inlet screw groove (702) is connected to the limiting screw groove (701) and is located at an end position; a plurality of sliding seats (703) are provided inside the limiting screw groove (701).

6. The parking device according to claim 5, characterized in that: The plurality of sliding seats (703) correspond in number to the volute block (502) and are fixedly connected. The sliding seat (703) is provided with a screw hole. The volute block (502) is provided with a threaded rod (704) passing through the sliding seat (703) and threadedly connected to the main rod (501).

7. The parking device according to claim 6, characterized in that: A fixing sleeve (10) is threadedly fixed to the end of the main rod (501), and one side of the fixing sleeve (10) is in contact with the end of the volute block (502).

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