Axle assembly

Abstract

The invention relates to an axle assembly which comprises an axle, two brake mechanisms, two discs, two buffers and a pushing device. The two brake mechanisms are arranged at the two ends of the vehicle in a one-to-one correspondence mode. Each brake mechanism comprises a first driving assembly and a brake disc. The two discs are arranged in the brake disc in a one-to-one correspondence mode, and corrugated grooves are formed in the faces, facing the center of the axle, of the discs. The two buffers are in one-to-one correspondence with the two discs, and the driving ends of the buffers face the corrugated groove; the pushing device is arranged on the axle and used for pushing the buffer to move towards the corrugated groove. When the driving end of the buffer is in contact with the corrugated groove, the periodic fluctuation of the corrugated groove enables the driving end of the buffer to be compressed and reset in the moving process, rigid impact is converted into elastic deformation, the instantaneous braking force is improved, and the braking time is shortened. The elastic reset characteristic of the buffer allows continuous multiple times of compression, and continuous output of braking force is ensured when the slipping phenomenon occurs during rigid braking of the brake disc.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and particularly to an axle assembly. Background Art

[0002] In the existing vehicle braking system, the braking mechanism usually realizes braking through the direct contact between the friction plate and the brake disc. However, such a structure is prone to the following problems during frequent braking or emergency braking: First, the braking mechanism lacks a buffer mechanism, resulting in the direct transmission of the impact force during braking to the axle, which may cause vehicle body vibration or component wear.

[0003] Second, the rigid contact easily leads to rapid wear of the caliper and the brake disc, not only making the braking time longer, but also possibly causing a slipping phenomenon. Summary of the Invention

[0004] Based on the above description, the present invention provides an axle assembly, aiming to solve the problem that the existing braking mechanism lacks a buffer mechanism.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: An axle assembly includes: An axle; Two braking mechanisms, which are respectively arranged at both ends of the axle in a one-to-one correspondence. The braking mechanism includes a first driving component and a brake disc; Two discs, which are respectively arranged in the brake disc in a one-to-one correspondence. The surface of the disc facing the center of the axle is provided with corrugated grooves; Two buffers, corresponding to the two discs one by one. The driving end of the buffer faces the corrugated groove; A pushing device, which is arranged on the axle. The pushing device is used to push the buffer to move towards the corrugated groove.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Further, a limit sleeve is provided on the axle corresponding to each buffer, and the output ends of the two buffers respectively pass through the limit sleeve.

[0008] Further, the pushing device includes a first pushing component and a power mechanism. The number of the first pushing components is associated with the number of the buffers, and the first pushing components correspond to the buffers one by one. The first pushing component includes a bearing sleeve, a connecting sleeve, and a first push rod. The connecting sleeve is connected to the axle through the bearing sleeve. The buffer is disposed within the connecting sleeve. One end of the first push rod penetrates into and is connected to the non-driving end of the buffer from the end of the connecting sleeve facing away from the disc, and the other end of the first push rod is connected to the output end of the power mechanism.

[0009] Further, the first pushing component includes a push plate disposed between the non-driving end of the buffer and the other end of the first push rod.

[0010] Further, the connecting sleeve has a first accommodation cavity and a second accommodation cavity. The buffer is located within the first accommodation cavity. The first pushing component includes a first elastic member sleeved on the first push rod. One end of the first elastic member abuts against the side wall of the second accommodation cavity, and the other end of the first elastic member abuts against the first flange of the first push rod.

[0011] Further, at least two sliding grooves are formed in the inner wall of the first accommodation cavity. The push plate is provided with sliding protrusions corresponding to each of the sliding grooves, and the sliding protrusions are slidably connected to the sliding grooves.

[0012] Further, the power mechanism includes a second driving component, a second pushing component, and a second push rod. The first connection end of the second pushing component is connected to the output end of the second driving component. The number of the second push rods is associated with the number of the first pushing components. One end of two second push rods is respectively connected to the second connection ends of two second pushing components of the second pushing component, and the other end of the second push rod serves as the output end of the power mechanism.

[0013] Further, the second driving component includes a driving motor and an eccentric wheel. The driving motor is disposed on the axle, and the eccentric wheel is disposed on the output end of the driving motor. The eccentric wheel serves as the output end of the second driving component.

[0014] Further, the second pushing component includes a connecting member and a support seat. The connecting member includes a moving rod and a connecting rod disposed perpendicularly. The moving rod is connected to the axle through the support seat. The end of the moving rod facing away from the connecting rod serves as the first connection end of the second pushing component, and both ends of the connecting rod serve as the second connection ends of two second pushing components of the second pushing component.

[0015] Further, the second driving component includes a second elastic member sleeved on the moving rod. One end of the second elastic member abuts against the support seat, and the other end of the second elastic member abuts against the second flange of the moving rod.

[0016] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects: (1) When the driving end of the buffer contacts the corrugated groove in the present invention, the periodic undulation of the corrugated groove causes the driving end of the buffer to be compressed and reset during movement, converting the rigid impact into elastic deformation, improving the instantaneous braking force, and shortening the braking time. The elastic reset characteristic of the buffer allows continuous compression multiple times. When the rigid braking of the brake disc slips, it ensures the continuous output of the braking force.

[0017] (2) In the present invention, the limiting sleeve is used to prevent the buffer from deflecting or jittering due to the lateral force, ensuring that the driving end of the buffer is always aligned with the preset track of the corrugated groove and avoiding local wear caused by misalignment.

[0018] (3) In the present invention, the second driving component provides the initial driving force, and the second driving component distributes the driving force to the two second push rods, realizing the synchronous application of thrust to the two first push rods to ensure that the two side buffers respond simultaneously. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is the general assembly drawing of an axle assembly provided in the embodiment of the present invention; Figure 2 It is the structural schematic diagram of the brake disc in the embodiment of the present invention; Figure 3 It is the structural schematic diagram of the disc in the embodiment of the present invention; Figure 4 It is the mechanism schematic diagram of the pushing device in the embodiment of the present invention; Figure 5 It is the structural schematic diagram of the first driving component in the embodiment of the present invention; Figure 6 It is the vertical sectional view of the first driving component in the embodiment of the present invention; Figure 7 It is Figure 6 the partial enlarged view at A in Figure 8This is a schematic structural diagram of the power mechanism in an embodiment of the present invention.

[0021] Explanation of reference numerals in the drawings: 10. Axle; 11. Limit sleeve; 20. Braking mechanism; 21. First driving assembly; 22. Brake disc; 30. Disc; 31. Corrugated groove; 40. Buffer; 50. Pushing device; 51. First pushing assembly; 511. Bearing sleeve; 512. Connecting sleeve; 5121. First accommodating area; 51211. Chute; 5122. Second accommodating area; 513. First push rod; 514. Push plate; 5141. Sliding protrusion; 515. First elastic member; 52. Power mechanism; 521. Second driving assembly; 5211. Driving motor; 5212. Eccentric wheel; 522. Second pushing assembly; 5221. Connecting member; 52211. Moving rod; 522111. Second flange; 52212. Connecting rod; 5222. Support seat; 5223. Second elastic member; 523. Second push rod. Detailed implementation manners

[0022] For the convenience of understanding the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0024] It can be understood that spatial relationship terms such as "under", "below", "lower", "beneath", "above", "upper", etc. can be used herein to describe the relationship between an element or feature shown in the drawing and other elements or features. It should be understood that in addition to the orientation shown in the drawing, spatial relationship terms also include different orientations of the device during use and operation. For example, if the device in the drawing is flipped, the element or feature described as "under other elements" or "beneath it" or "under it" will be oriented "above" other elements or features. Therefore, the exemplary terms "under" and "below" can include both the upper and lower orientations. In addition, the device can also include other orientations (such as rotating 90 degrees or other orientations), and the spatial description language used herein is accordingly interpreted.

[0025] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising", "including" or "having" and the like specify the presence of the stated features, integers, steps, operations, components, parts or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts or combinations thereof.

[0026] Referring to Figures 1 to 3 As shown, the present invention provides a technical solution: an axle assembly, comprising an axle 10, two braking mechanisms 20, two discs 30, two buffers 40 and a pushing device 50; the two braking mechanisms 20 are respectively arranged at two ends of the axle 10, and the braking mechanism 20 includes a first driving assembly 21 and a brake disc 22; the two discs 30 are respectively arranged in the brake discs 22, and a corrugated groove 31 is formed on the surface of the disc 30 facing the center of the axle 10; the two buffers 40 correspond to the two discs 30 one by one, and the driving end of the buffer 40 faces the corrugated groove 31; the pushing device 50 is arranged on the axle 10, and the pushing device 50 is used to push the buffer 40 to move towards the corrugated groove 31.

[0027] Exemplarily, the pushing device 50 may include two pushing members, and the driving ends of the two pushing members are respectively connected to the non-driving ends of the two buffers 40. The buffer 40 may be a pneumatic buffer 40, a hydraulic buffer 40 or a spring buffer 40, etc.

[0028] In this embodiment, during braking, the pushing device 50 drives the driving end of the buffer 40 to contact the corrugated groove 31. As the brake disc rotates, the periodic undulation of the corrugated groove 31 causes the driving end of the buffer 40 to be compressed and reset during movement, converting the rigid impact into elastic deformation, improving the instantaneous braking force and shortening the braking time. The elastic reset characteristic of the buffer 40 allows continuous compression for multiple times, ensuring continuous output of the braking force when the rigid braking of the brake disc 22 slips.

[0029] Referring to Figure 1 As shown, in some embodiments, the axle 10 is provided with a limiting sleeve 11 corresponding to each buffer 40, and the output ends of the two buffers 40 respectively pass through the limiting sleeve 11.

[0030] In this embodiment, the inner diameter of the limiting sleeve 11 matches the outer diameter of the output end of the buffer 40, restricting the movement path of the buffer 40 to be a straight line. During braking, the limiting sleeve 11 prevents the buffer 40 from deflecting or jittering due to lateral force. Ensure that the driving end of the buffer 40 is always aligned with the preset trajectory of the corrugated groove 31, avoiding local wear caused by misalignment.

[0031] Referring to Figures 4 to 5As shown, in some embodiments, the pushing device 50 includes a first pushing component 51 and a power mechanism 52. The number of the first pushing components 51 is associated with the number of the buffers 40. The first pushing components 51 correspond one-to-one to the buffers 40. The first pushing component 51 includes a bearing sleeve 511, a connecting sleeve 512 and a first push rod 513. The connecting sleeve 512 is connected to the axle 10 through the bearing sleeve 511. The buffer 40 is arranged in the connecting sleeve 512. One end of the first push rod 513 penetrates from the end of the connecting sleeve 512 away from the disc 30 and is connected to the non-driving end of the buffer 40. The other end of the first push rod 513 is connected to the output end of the power mechanism 52.

[0032] Exemplarily, the power mechanism 52 may be a bidirectional air cylinder or a bidirectional hydraulic cylinder.

[0033] In this embodiment, the power mechanism 52 outputs linear thrust to the two first push rods 513, so that the first push rods 513 are transmitted to the non-driving end of the buffer 40, pushing the buffer 40 to move toward the corrugated groove 31, so that the driving end of the buffer 40 contacts the corrugated groove 31.

[0034] Reference Figure 6 As shown, in some embodiments, the first pushing assembly 51 includes a push plate 514 , which is disposed between the non-driving end of the buffer 40 and the other end of the first push rod 513 .

[0035] In this embodiment, the push plate 514 serves as an intermediary structure to evenly distribute the concentrated force of the first push rod 513 to the non-driving end of the buffer 40, thereby avoiding stress concentration caused by point contact.

[0036] Reference Figure 6 As shown, in some embodiments, the connecting sleeve 512 has a first accommodating cavity and a second accommodating cavity, the buffer 40 is located in the first accommodating cavity, and the first pushing assembly 51 includes a first elastic member 515, which is sleeved on the first push rod 513, and one end of the first elastic member 515 abuts against the side wall of the second accommodating cavity, and the other end of the first elastic member 515 abuts against the first flange of the first push rod 513.

[0037] For example, the first elastic member 515 may be a spring or an elastic rubber ring, etc. The first push rod 513 may be configured in a stepped shape, and the thicker diameter section of the first push rod 513 may serve as a first flange of the first push rod 513 .

[0038] In this embodiment, the first elastic member 515 provides a reverse elastic force when the buffer 40 is reset, thereby assisting the buffer 40 to quickly disengage from the corrugated groove 31 .

[0039] Reference Figure 7As shown, in some embodiments, at least two sliding grooves 51211 are formed on the inner wall of the first accommodating cavity. The pushing plate 514 is provided with sliding protrusions 5141 corresponding to each sliding groove 51211, and the sliding protrusions 5141 are slidably connected to the sliding grooves 51211.

[0040] In this embodiment, the sliding groove 51211 and the sliding protrusion 5141 form a guide rail structure, restricting the movement direction of the pushing plate 514 to a single axial direction. Thus, the radial offset of the pushing plate 514 is eliminated, ensuring that the thrust direction is consistent with the axis of the corrugated groove 31.

[0041] Referring to Figure 4 and Figure 8 As shown, in some embodiments, the power mechanism 52 includes a second driving component 521, a second pushing component 522, and a second push rod 523. The first connection end of the second pushing component 522 is connected to the output end of the second driving component 521. The number of the second push rods 523 is associated with the number of the first pushing components 51. One end of two second push rods 523 is correspondingly connected to the second connection ends of two second pushing components 522 of the second pushing component 522, and the other end of the second push rod 523 serves as the output end of the power mechanism 52.

[0042] Exemplarily, the second driving component 521 can be a cylinder or a hydraulic cylinder, etc. The second pushing component 522 can be a frame structure, etc.

[0043] In this embodiment, the second driving component 521 provides an initial driving force, and the second pushing component 522 distributes the driving force to the two second push rods 523, realizing the synchronous application of thrust to the two first push rods 513. In this way, the two second push rods 523 act synchronously, ensuring that the two buffers 40 respond simultaneously.

[0044] Referring to Figure 4 and Figure 8 As shown, in some embodiments, the second driving component 521 includes a driving motor 5211 and an eccentric wheel 5212. The driving motor 5211 is arranged on the axle 10, and the eccentric wheel 5212 is arranged at the output end of the driving motor 5211. The eccentric wheel 5212 serves as the output end of the second driving component 521.

[0045] In this embodiment, the driving motor 5211 drives the eccentric wheel 5212 to rotate, and the contour of the eccentric wheel 5212 converts the rotational motion into the linear motion of the second pushing component 522. When the second pushing component 522 moves linearly, the second pushing component 522 applies a thrust to the first push rod 513 through the second push rod 523, realizing that the buffer 40 can contact the corrugated groove 31 synchronously.

[0046] Referring to Figure 4 and Figure 8As shown, in some embodiments, the second pushing assembly 522 includes a connecting member 5221 and a support seat 5222, the connecting member 5221 includes a vertically arranged moving rod 52211 and a connecting rod 52212, the moving rod 52211 is connected to the axle 10 through the support seat 5222, and the end of the moving rod 52211 away from the connecting rod 52212 serves as the first connecting end of the second pushing assembly 522, and the two ends of the connecting rod 52212 serve as the second connecting ends of the two second pushing assemblies 522.

[0047] In this embodiment, when the eccentric wheel 5212 applies a thrust to the movable rod 52211 , it can drive the connecting rod 52212 to apply a thrust to the first push rod 513 via the second push rod 523 .

[0048] Reference Figure 4 and Figure 8 As shown, in some embodiments, the second pushing assembly 522 includes a second elastic member 5223, which is sleeved on the moving rod 52211, one end of the second elastic member 5223 abuts against the support seat 5222, and the other end of the second elastic member 5223 abuts against the second flange 522111 of the moving rod 52211.

[0049] Exemplarily, the second elastic member 5223 may be a spring or an elastic rubber ring.

[0050] In this embodiment, the second elastic member 5223 provides auxiliary elastic force during resetting to ensure that the moving rod 52211 is quickly reset.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An axle assembly, characterized in that, include: Axle (10); Two brake mechanisms (20) are provided at both ends of the axle (10) in a one-to-one correspondence, and the brake mechanisms (20) include a first drive assembly (21) and a brake disc (22); Two discs (30) are disposed in a one-to-one correspondence within the brake disc (22), and a surface of the disc (30) facing the center of the axle (10) is provided with a corrugated groove (31); Two buffers (40) corresponding one to one to the two discs (30), with the driving ends of the buffers (40) facing the corrugated grooves (31); A pushing device (50) is provided on the axle (10), and the pushing device (50) is used to push the buffer (40) to move toward the corrugated groove (31).

2. The axle assembly according to claim 1, wherein The axle (10) is provided with a limiting sleeve (11) corresponding to each buffer (40), and the output ends of the two buffers (40) pass through the limiting sleeve (11) in a one-to-one correspondence.

3. The axle assembly according to claim 1, characterized in that, The pushing device (50) includes a first pushing component (51) and a power mechanism (52). The number of the first pushing components (51) is associated with the number of the buffers (40). The first pushing components (51) correspond to the buffers (40) one by one. The first pushing component (51) includes a bearing sleeve (511), a connecting sleeve (512) and a first push rod (513). The connecting sleeve (512) is connected to the axle (10) through the bearing sleeve (511). The buffer (40) is arranged in the connecting sleeve (512). One end of the first push rod (513) penetrates from the end of the connecting sleeve (512) away from the disc (30) and is connected to the non-driving end of the buffer (40). The other end of the first push rod (513) is connected to the output end of the power mechanism (52).

4. The axle assembly according to claim 3, characterized in that, The first pushing assembly (51) comprises a push plate (514), and the push plate (514) is arranged between the non-driving end of the buffer (40) and the other end of the first push rod (513).

5. The axle assembly according to claim 4, characterized in that, The connecting sleeve (512) has a first accommodating cavity and a second accommodating cavity, the buffer (40) is located in the first accommodating cavity, the first pushing assembly (51) includes a first elastic member (515), the first elastic member (515) is sleeved on the first push rod (513), one end of the first elastic member (515) abuts against the side wall of the second accommodating cavity, and the other end of the first elastic member (515) abuts against the first flange of the first push rod (513).

6. The axle assembly according to claim 5, characterized in that, At least two slide grooves (51211) are provided on the inner wall of the first accommodating cavity, and the push plate (514) is provided with a sliding protrusion (5141) corresponding to each of the slide grooves (51211), and the sliding protrusion (5141) is slidably connected to the slide groove (51211).

7. The axle assembly according to claim 6, wherein, The power mechanism (52) includes a second driving assembly (521), a second pushing assembly (522) and a second push rod (523). The first connection end of the second pushing assembly (522) is connected to the output end of the second driving assembly (521). The number of the second push rods (523) is associated with the number of the first pushing assemblies (51). One ends of two of the second push rods (523) are respectively connected to the second connection ends of two of the second pushing assemblies (522) of the second pushing assembly (522), and the other ends of the second push rods (523) serve as the output end of the power mechanism (52).

8. The axle assembly according to claim 7, wherein, The second driving assembly (521) includes a driving motor (5211) and an eccentric wheel (5212). The driving motor (5211) is disposed on the axle (10), and the eccentric wheel (5212) is disposed on the output end of the driving motor (5211). The eccentric wheel (5212) serves as the output end of the second driving assembly (521).

9. The axle assembly according to claim 8, wherein, The second pushing assembly (522) includes a connecting member (5221) and a support seat (5222). The connecting member (5221) includes a moving rod (52211) and a connecting rod (52212) which are vertically arranged. The moving rod (52211) is connected to the axle (10) through the support seat (5222). The end of the moving rod (52211) away from the connecting rod (52212) serves as the first connection end of the second pushing assembly (522), and both ends of the connecting rod (52212) serve as the second connection ends of two of the second pushing assemblies (522) of the second pushing assembly (522).

10. The axle assembly according to claim 9, wherein, The second pushing assembly (522) includes a second elastic member (5223). The second elastic member (5223) is sleeved on the moving rod (52211). One end of the second elastic member (5223) abuts against the support seat (5222), and the other end of the second elastic member (5223) abuts against the second flange (522111) of the moving rod (52211).

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