Posture adjusting mechanism and chassis battery replacing platform

Abstract

The invention provides a posture adjusting mechanism and a chassis battery replacing platform, and relates to the technical field of electric vehicle battery replacing equipment, the posture adjusting mechanism comprises a first mounting plate, a second mounting plate and a supporting plate, a first power mechanism is arranged on the first mounting plate, the first power mechanism is connected with a first wedge block, and the second mounting plate is hinged to the first mounting plate; a first abutting part and a second power mechanism are arranged on the second mounting plate; the first power mechanism is connected with the first wedge-shaped block, the first abutting part abuts against the wedge-shaped face of the first wedge-shaped block, the second power mechanism is connected with the second wedge-shaped block, the supporting plate is hinged to the second hinge seat, the axial direction of a rotating shaft of the supporting plate is perpendicular to the axial direction of a rotating shaft of the second mounting plate, and the supporting plate is provided with a second abutting part abutting against the wedge-shaped face of the second wedge-shaped block. The two wedge-shaped blocks are pushed to move through the two power mechanisms, angle adjustment of the supporting plate in the two perpendicular directions can be achieved, the adjusting range is wider, adaptability is higher, and the supporting effect of the supporting plate is more stable and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle battery replacement equipment, and in particular to a posture adjustment mechanism and a chassis battery replacement platform. Background Art

[0002] Pure electric vehicles are developing more and more rapidly. One of the bottlenecks hindering the development of pure electric vehicles is the problem of charging power batteries. The traditional way is to use charging piles for fast charging, but the charging time is still relatively long. The problem of charging time can be solved by using battery swapping. Battery swapping refers to the method of replacing the low-power battery on the electric vehicle with a fully charged battery at a battery swap station, and the replaced low-power battery is charged at the battery swap station.

[0003] The battery replacement method in the technology known to the inventor is that the battery replacement cart is driven under the electric car, the lifting platform on the battery replacement cart rises to fit the battery pack, and then the battery pack is unlocked, the lifting platform supports the battery pack to descend, and the battery replacement cart carries the depleted battery pack to the battery replacement station for battery replacement.

[0004] However, in actual work, it was found that the battery frame at the bottom of the electric vehicle is not parallel to the ground, making it difficult for the lifting platform to fit the lower surface of the battery pack for effective support, resulting in difficulty in unlocking the battery pack. Unlocking often fails, affecting the battery replacement success rate and efficiency. In order to solve this technical problem, a spring can be set at the bottom of the lifting platform so that the lifting platform can passively adapt to the angle of the vehicle chassis. However, this form of adaptation to the vehicle chassis posture is small, and the adaptation effect to large-angle posture deviation is poor, and the battery replacement success rate is still difficult to improve. Summary of the invention

[0005] The purpose of the present invention is to provide a posture adjustment mechanism and a chassis power exchange platform to solve the problems existing in the above-mentioned prior art. By driving the two wedge blocks to move separately through two power mechanisms, the angle adjustment of the support plate in two perpendicular directions can be achieved. The adjustment range is wider, the adaptability is stronger, and the supporting effect of the support plate is more stable and reliable.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A posture adjustment mechanism, comprising a first mounting plate, a second mounting plate and a support plate, wherein a first power mechanism and a first hinge seat are arranged on the first mounting plate, an output end of the first power mechanism is connected to a first wedge block, and the first power mechanism is used to drive the first wedge block to move in a straight line; an angle is formed between the axial direction of the hinge hole in the first hinge seat and the moving direction of the first wedge block; the second mounting plate is located above the first mounting plate, and the second mounting plate is hinged to the first hinge seat; a first abutment portion, a second power mechanism and a second hinge seat are arranged on the second mounting plate; the first abutment portion abuts against the wedge surface of the first wedge block, and an output end of the second power mechanism is connected to the second wedge block, and the second power mechanism is used to drive the second wedge block to move in a straight line; an axial direction of the hinge hole in the second hinge seat is perpendicular to the axial direction of the hinge hole in the first hinge seat; an angle is formed between the axial direction of the hinge hole in the second hinge seat and the moving direction of the second wedge block; the support plate is located above the second mounting plate, and the support plate is hinged to the second hinge seat, and a second abutment portion abutting against the wedge surface of the second wedge block is arranged on the support plate.

[0008] As an embodiment, the first power mechanism includes a first rotation driving mechanism, the output end of the first rotation driving mechanism is connected to a first screw rod, the first screw rod is threadedly connected to a first nut, and the first nut is connected to the first wedge block.

[0009] As an embodiment, the first nut is connected to a first connecting plate, and one or a plurality of first wedge blocks are arranged in parallel on the first connecting plate.

[0010] As an embodiment, a first linear guide rail is further disposed on the first mounting plate, and a first sliding block slidably matched with the first linear guide rail is disposed at the bottom of the first mounting plate.

[0011] As an embodiment, the second power mechanism includes a second rotation drive mechanism, the output end of the second rotation drive mechanism is connected to a second screw rod, the second screw rod is threadedly connected to a second nut, and the second nut is connected to the second wedge block.

[0012] As an implementation manner, the second nut is connected to a second connecting plate, and one or a plurality of second wedge blocks are arranged in parallel on the second connecting plate.

[0013] As an embodiment, a second linear guide rail is further disposed on the second mounting plate, and a second sliding block slidably matched with the second linear guide rail is disposed at the bottom of the second mounting plate.

[0014] As an embodiment, the first abutting portion includes a first wheel-shaped member rotatably disposed at the bottom of the second mounting plate, and the second abutting portion includes a second wheel-shaped member rotatably disposed at the bottom of the support plate.

[0015] As an embodiment, the moving direction of the first wedge block is perpendicular to the axial direction of the hinge hole in the first hinge seat; the moving direction of the second wedge block is perpendicular to the axial direction of the hinge hole in the second hinge seat.

[0016] The present invention also provides a chassis battery replacement platform, comprising the posture adjustment mechanism as described above.

[0017] Compared with the prior art, the present invention has the following technical effects:

[0018] The present invention drives the two wedge blocks to move separately through two power mechanisms, so as to realize the angle adjustment of the support plate in two perpendicular directions, with a wider adjustment range and stronger adaptability; and the angle adjustment of the support plate in the present invention is active adjustment, and the components are rigidly connected, so the supporting effect of the support plate is also more stable and reliable.

[0019] Other technical solutions in the present invention also have the following technical effects:

[0020] The present invention converts the rotation of the servo motor into the movement of the wedge block through the screw-nut structure, and the matching accuracy and adjustment accuracy of the screw-nut structure are relatively high, which is convenient for precise adjustment of the posture of the support platform; moreover, the screw-nut structure is simple in structure, low in investment cost, and easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a schematic diagram of the overall structure of the posture adjustment mechanism in one embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of the first mounting plate and its assembled parts in one embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the assembly structure of the first mounting plate and the second mounting plate in one embodiment of the present invention;

[0025] Figure 4It is a schematic diagram of the overall structure of the second mounting plate and its assembled parts in one embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the assembly structure of the second mounting plate and the support plate in one embodiment of the present invention;

[0027] Description of reference numerals:

[0028] 1. First mounting plate; 101. First hinge seat; 102. First wedge block; 103. First servo motor; 104. First reducer; 105. First reducer mounting seat; 106. First coupling; 107. First lead screw; 108. First support end mounting seat; 109. First connecting plate; 110. First linear guide rail; 111. Support foot;

[0029] 2. second mounting plate; 201. second hinge seat; 202. second wedge block; 203. second servo motor; 204. second reducer; 205. second reducer mounting seat; 206. second coupling; 207. second lead screw; 208. second support end mounting seat; 209. second connecting plate; 210. second linear guide rail; 211. first abutting portion; 212. induction sheet;

[0030] 3. Support plate; 301. Second abutting portion. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The purpose of the present invention is to provide a posture adjustment mechanism and a chassis power exchange platform to solve the problems existing in the prior art. By driving the two wedge blocks to move separately through two power mechanisms, the angle adjustment of the support plate in two perpendicular directions can be achieved. The adjustment range is wider, the adaptability is stronger, and the supporting effect of the support plate is more stable and reliable.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Embodiment 1:

[0035] like Figure 1 to Figure 5As shown, this embodiment provides a posture adjustment mechanism, including a first mounting plate 1, a second mounting plate 2 and a support plate 3. A first power mechanism and a first articulated seat 101 are arranged on the first mounting plate 1. The output end of the first power mechanism is connected to the first wedge block 102. The first power mechanism is used to drive the first wedge block 102 to move in a straight line. The wedge surface on the first wedge block 102 is arranged toward the moving direction. The wedge surface can be a plane or an arc surface. When the wedge surface is an arc surface, it can be an upper convex arc surface or a lower concave arc surface. The first articulated seat 101 has an articulated hole for connecting the articulated shaft. The axial direction of the articulated hole has an angle with the moving direction of the first wedge block 102. The second mounting plate 2 is located above the first mounting plate 1. The second mounting plate 2 has an articulated shaft, which is articulated with the first articulated seat 101. The second mounting plate 2 is provided with a first abutting portion 211, a second power mechanism and a second hinge seat 201; the first abutting portion 211 abuts against the wedge surface of the first wedge block 102, the output end of the second power mechanism is connected to the second wedge block 202, and the second power mechanism is used to drive the second wedge block 202 to move in a straight line. The wedge surface on the second wedge block 202 is arranged in the moving direction, and the wedge surface can be a plane or an arc surface, and when it is an arc surface, it can be an upper convex arc surface or a lower concave arc surface. The second hinge seat 201 has a hinge hole for connecting the hinge shaft, and the axial direction of the hinge hole is perpendicular to the axial direction of the hinge hole in the first hinge seat 101; there is an angle between the axial direction of the hinge hole in the second hinge seat 201 and the moving direction of the second wedge block 202; the support plate 3 is used to support objects, the support plate 3 is located above the second mounting plate 2, the support plate 3 is hinged to the second hinge seat 201, and the support plate 3 is provided with a second abutting portion 301 that abuts against the wedge surface of the second wedge block 202.

[0036] When in use, the first power mechanism is activated to drive the first wedge block 102 to move in a straight line. During the movement, the first wedge block 102 drives the first abutting portion 211 to move upward or downward through the wedge surface, thereby driving the second mounting plate 2 to rotate around the hinge axis, and the end opposite to the hinge axis rises or falls; the second power mechanism is activated to drive the second wedge block 202 to move in a straight line. During the movement, the second wedge block 202 drives the second abutting portion 301 to move upward or downward through the wedge surface, thereby driving the support plate 3 to rotate around the hinge axis, and the end opposite to the hinge axis rises or falls. Since the hinge axis of the second mounting plate 2 and the hinge axis of the support plate 3 in this embodiment are perpendicular to each other, the angle adjustment of the support plate 3 in two perpendicular directions can be realized, and the adjustment range is wider and the adaptability is stronger; and in this embodiment, the angle adjustment of the support plate 3 is active adjustment, and the components are rigidly connected, so the supporting function of the support plate 3 is also more stable and reliable. When the posture adjustment mechanism in this embodiment is applied to a battery-exchange vehicle, the first mounting plate 1 can be installed on the lifting mechanism, and the support plate 3 is used to support the battery pack. The support plate 3 can better adapt to the tilting posture of the vehicle chassis at different angles and effectively support the battery pack, thereby facilitating the unlocking of the battery pack and improving the success rate of battery replacement.

[0037] Theoretically, in this embodiment, the moving direction of the first wedge block 102 is not 0° or 180° with the axial direction of the hinge hole in the first hinge seat 101. When the wedge block moves, the force generated on the first abutment portion 211 can cause the second mounting plate 2 to rotate, and the same applies to the support plate 3. In order to facilitate the arrangement of the first power mechanism and the second power mechanism, and to improve the conversion efficiency between the moving distance of the first wedge block 102 and the second wedge block 202 and the angle adjustment conversion of the support plate 3, in this embodiment, the moving direction of the first wedge block 102 is perpendicular to the axial direction of the hinge hole in the first hinge seat 101; the moving direction of the second wedge block 202 is perpendicular to the axial direction of the hinge hole in the second hinge seat 201.

[0038] In order to prevent the descending ends of the second mounting plate 2 and the support plate 3 from interfering with the bottom equipment when the posture is adjusted, the first hinge seat 101 and the second hinge seat 201 in the present embodiment are respectively arranged close to the ends of the first mounting plate 1 and the second mounting plate 2; the hinge axis on the second mounting plate 2 and the hinge axis on the support plate 3 are also respectively arranged close to the ends of the second mounting plate 2 and the support plate 3.

[0039] In this embodiment, a sensing sheet 212 is also provided on the second mounting plate 2. The sensing sheet 212 is used in conjunction with the proximity switch to ensure the perfection of the action of the posture adjustment mechanism. When the first power mechanism is in action, it will drive the second mounting plate 2 to act, thereby changing the position of the sensing sheet 212. When the sensing sheet 212 is aligned with the proximity switch, the proximity switch will have a signal feedback, indicating that it is aligned with the sensing sheet 212. If the second mounting plate 2 is in a horizontal state when the proximity switch is set to align with the sensing sheet 212, the origin of the first power mechanism can be found. Similarly, by setting the sensing sheet 212 on the support plate 3, the origin of the second power mechanism can be found. When the sensing sheet 212 is set on the support plate 3, in order to prevent the sensing sheet 212 from interfering with the support of the support plate 3, the sensing sheet 212 can be fixed on the lower surface of the support plate 3.

[0040] As an embodiment, the first power mechanism includes a first rotation drive mechanism, which includes a first servo motor 103 and a first reducer 104 in transmission connection, and the first reducer 104 is fixed on the first mounting plate 1 through a first reducer mounting seat 105. The output end of the first reducer 104 is connected to the first screw rod 107 through a first coupling 106, and the end of the first screw rod 107 is supported by a first support end mounting seat 108. The first screw rod 107 is threadedly connected to the first nut, and the thread profile of the first screw rod 107 in this embodiment is a trapezoid. The first nut is connected to the first connecting plate 109, and one or more first wedge blocks 102 are arranged on the first connecting plate 109 in parallel. A first linear guide 110 is also arranged on the first mounting plate 1, and a first slider that is slidably matched with the first linear guide 110 is arranged at the bottom of the first connecting plate 109, and the linear motion of the first connecting plate 109 and the first wedge block 102 is guided by the cooperation of the first linear guide 110 and the first slider.

[0041] As an embodiment, the second power mechanism includes a second rotation drive mechanism, which includes a second servo motor 203 and a second reducer 204 in transmission connection, and the second reducer 204 is fixed on the second mounting plate 2 through a second reducer mounting seat 205. The output end of the second reducer 204 is connected to the second screw rod 207 through a second coupling 206, and the end of the second screw rod 207 is supported by a second support end mounting seat 208. The second screw rod 207 is threadedly connected to the second nut, and the thread profile of the second screw rod 207 in this embodiment is a trapezoid. The second nut is connected to the second connecting plate 209, and one or more second wedge blocks 202 are arranged on the second connecting plate 209 in parallel. A second linear guide 210 is also arranged on the second mounting plate 2, and a second slider that is slidably matched with the second linear guide 210 is arranged at the bottom of the second connecting plate 209, and the linear motion of the second connecting plate 209 and the second wedge block 202 is guided by the cooperation of the second linear guide 210 and the second slider.

[0042] In this embodiment, the rotation of the servo motor is converted into the movement of the wedge block through the screw-nut structure, and the matching accuracy and adjustment accuracy of the screw-nut structure are relatively high, which is convenient for accurately adjusting the posture of the support platform. In addition, the screw-nut structure is simple in structure, low in investment cost, and easy to maintain.

[0043] In order to reduce the friction between the first abutting portion 211, the second abutting portion 301 and the wedge-shaped surface, in this embodiment, the first abutting portion 211 includes a first wheel-shaped member rotatably disposed at the bottom of the second mounting plate 2, and the second abutting portion 301 includes a second wheel-shaped member rotatably disposed at the bottom of the support plate 3. The first wheel-shaped member and the second wheel-shaped member can be rollers, bearings or balls.

[0044] Embodiment 2:

[0045] This embodiment provides a chassis battery swap platform, including a posture adjustment mechanism as in Embodiment 1. The first mounting plate 1 is fixed to a lifting mechanism in the chassis battery swap platform through legs 111, and the support plate 3 is used to support the battery pack.

[0046] Adaptive changes made according to actual needs are all within the protection scope of the present invention.

[0047] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A posture adjustment mechanism, characterized in that: include: A first mounting plate, on which a first power mechanism and a first hinge seat are disposed, an output end of the first power mechanism is connected to a first wedge block, and the first power mechanism is used to drive the first wedge block to move in a straight line; an angle is formed between the axial direction of the hinge hole in the first hinge seat and the moving direction of the first wedge block; A second mounting plate, the second mounting plate is located above the first mounting plate, and the second mounting plate is hinged to the first hinge seat; a first abutting portion, a second power mechanism and a second hinge seat are provided on the second mounting plate; the first abutting portion abuts against the wedge surface of the first wedge block, the output end of the second power mechanism is connected to the second wedge block, and the second power mechanism is used to drive the second wedge block to move along a straight line; the axial direction of the hinge hole in the second hinge seat is perpendicular to the axial direction of the hinge hole in the first hinge seat; an angle is formed between the axial direction of the hinge hole in the second hinge seat and the moving direction of the second wedge block; and a support plate, wherein the support plate is located above the second mounting plate, the support plate is hinged to the second hinge seat, and a second abutting portion abutting against the wedge surface of the second wedge block is provided on the support plate.

2. The posture adjustment mechanism according to claim 1, characterized in that: The first power mechanism comprises a first rotation driving mechanism, the output end of the first rotation driving mechanism is connected to a first screw rod, the first screw rod is threadedly connected to a first nut, and the first nut is connected to the first wedge block.

3. The posture adjustment mechanism according to claim 2, characterized in that: The first nut is connected to a first connecting plate, and the first connecting plate is provided with one or a plurality of first wedge blocks arranged in parallel.

4. The posture adjustment mechanism according to claim 3, characterized in that: A first linear guide rail is also disposed on the first mounting plate, and a first sliding block slidably matched with the first linear guide rail is disposed at the bottom of the first mounting plate.

5. The posture adjustment mechanism according to claim 1, characterized in that: The second power mechanism comprises a second rotation driving mechanism, the output end of the second rotation driving mechanism is connected to a second screw rod, the second screw rod is threadedly connected to a second nut, and the second nut is connected to the second wedge block.

6. The posture adjustment mechanism according to claim 5, characterized in that: The second nut is connected to a second connecting plate, and one or a plurality of second wedge blocks are arranged in parallel on the second connecting plate.

7. The posture adjustment mechanism according to claim 6, characterized in that: The second mounting plate is also provided with a second linear guide rail, and the bottom of the second mounting plate is provided with a second sliding block slidably matched with the second linear guide rail.

8. The posture adjustment mechanism according to claim 1, characterized in that: The first abutting portion includes a first wheel-shaped member rotatably disposed at the bottom of the second mounting plate, and the second abutting portion includes a second wheel-shaped member rotatably disposed at the bottom of the supporting plate.

9. The posture adjustment mechanism according to claim 1, characterized in that: The moving direction of the first wedge block is perpendicular to the axial direction of the hinge hole in the first hinge seat; the moving direction of the second wedge block is perpendicular to the axial direction of the hinge hole in the second hinge seat.

10. A chassis battery replacement platform, characterized in that: It comprises a posture adjustment mechanism as claimed in any one of claims 1 to 9.

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