Carrier device and transmission system
Patent Information
- Application Number
- CN202522031836.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-19
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-19
AI Technical Summary
[0003]相关技术中，托盘固设于输送装置，并配置有夹持结构，以适用不同规格电池的夹持，然而，由于夹持结构对电池规格的适用范围有限，导致适用性受到限制
Smart Images
Figure CN224831031U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary equipment technology, specifically to a carrying device and a transmission system. Background Technology
[0002] In the battery manufacturing production line, trays containing batteries need to be transported to designated workstations so that the batteries can be processed accordingly at those workstations.
[0003] In related technologies, a tray is fixed to a conveying device and is equipped with a clamping structure to accommodate batteries of different specifications. However, the applicability is limited because the clamping structure has a limited range of applicability to battery specifications. Utility Model Content
[0004] The present invention provides a carrier device and a transmission system to at least partially solve the above-mentioned technical problems.
[0005] In a first aspect, embodiments of the present invention provide a supporting device, comprising:
[0006] The base is configured to connect to an external conveying device;
[0007] The tray is detachably connected to the base along the first direction;
[0008] A clamping assembly is mounted on the tray, the clamping assembly being configured to limit the battery to a first preset position on the tray;
[0009] The base is provided with a first positioning structure, and the tray is provided with a second positioning structure that cooperates with the first positioning structure to position the tray to a second preset position on the base.
[0010] By adopting the above scheme, the battery can be positioned at a first preset position on the tray by setting the clamping component, so as to achieve effective clamping of the battery; and by detachably connecting the base and the tray, if the battery specifications exceed the applicable range of the clamping component, different trays can be replaced to adapt to the battery specifications, thereby improving the applicability of the carrying device; at the same time, by setting the first positioning structure and the second positioning structure, the accurate positioning of the tray and the base can be achieved during the tray replacement process.
[0011] Optionally, in some embodiments of this application, one of the first positioning structure and the second positioning structure includes: a positioning hole;
[0012] The other of the first and second positioning structures includes: a positioning pin;
[0013] At least a portion of the positioning pin is inserted into the positioning hole.
[0014] By adopting the above solution, the pallet can be quickly positioned on the base through the cooperation of positioning pins and positioning holes, thereby improving the pallet replacement efficiency and reducing the downtime of the conveyor.
[0015] Optionally, in some embodiments of this application, on a projection plane perpendicular to the first direction, the projections of at least two of the locating pins are located diagonally opposite to the projection of the tray.
[0016] By employing the above scheme, and limiting the projections of the two locating pins to diagonal positions on the projection of the tray, with a relatively large distance between the two locating pins, high positioning accuracy is achieved. Simultaneously, this projection relationship constraint prevents 180° reverse installation errors when the tray and base are assembled, thus ensuring the consistency of battery orientation (e.g., the orientation of positive and negative terminals) on each tray.
[0017] Optionally, in some embodiments of this application, the clamping assembly includes:
[0018] A limiting component, detachably connected to the tray;
[0019] Among them, at least two limiting members are spaced apart along the second direction, and at least two limiting members are spaced apart along the third direction to enclose a receiving space for accommodating the battery;
[0020] The second direction and the third direction intersect the first direction respectively, and the second direction intersects the third direction.
[0021] By adopting the above solution, the battery can be stably clamped by the cooperation of the limiting components in the second direction and the third direction. At the same time, since the limiting components are detachably connected to the tray, different sizes of limiting components can be replaced according to the specifications of the battery, thereby improving the applicability of the clamping components.
[0022] Optionally, in some embodiments of this application, the limiting member has:
[0023] The limiting surface is configured to abut against and cooperate with the battery.
[0024] A guide surface is located on the side of the limiting surface away from the tray;
[0025] In the second direction, the distance between the guide surfaces of the two oppositely arranged limiting members is greater than or equal to the distance between the limiting surfaces of the two oppositely arranged limiting members;
[0026] And / or, in the third direction, the distance between the guide surfaces of the two oppositely positioned limiting members is greater than or equal to the distance between the limiting surfaces of the two oppositely positioned limiting members.
[0027] Using the above scheme, the limiting surfaces of multiple limiting components abut against the same battery to limit the battery's position; while the guiding surface guides the battery during the loading process, ensuring that the battery is accurately placed between at least two limiting surfaces, facilitating the battery loading operation.
[0028] Since the position of the limiting component is fixed during the feeding process, the battery first contacts the guide surface when it enters the clamping assembly, and then is guided to contact the limiting surface. This can reduce the alignment accuracy between the battery and the limiting component in the second and / or third directions during the feeding process.
[0029] Optionally, in some embodiments of this application, the limiting member further comprises:
[0030] A transition surface is located between the limiting surface and the guiding surface;
[0031] The transition surface and the limiting surface are smoothly connected, and the transition surface and the guide surface are smoothly connected.
[0032] By adopting the above scheme, a smooth transition is achieved between the limiting surface and the guiding surface through the setting of the transition surface, so that the battery can fall smoothly into the space between the limiting surfaces.
[0033] Optionally, in some embodiments of this application, the limiting member further includes:
[0034] The body has the limiting surface and the guiding surface;
[0035] The stop portion protrudes relative to the body in a direction closer to the base;
[0036] In the second direction or the third direction, the stop part abuts against the tray.
[0037] By adopting the above solution and setting the stop section, the limiting component can be quickly positioned on the tray.
[0038] Optionally, in some embodiments of this application, the base has:
[0039] A lifting window extends through the base along the first direction;
[0040] The tray covers the lifting window.
[0041] By adopting the above solution, a lifting window is set in the base to provide space for the lifting mechanism to perform lifting operations on the pallet, which has a high space utilization rate and can reduce the weight of the base.
[0042] Optionally, in some embodiments of this application, the first positioning structure is disposed at the periphery of the lifting window.
[0043] By adopting the above solution, the first positioning structure is set around the lifting window, which can improve the compactness of the structure while ensuring the positioning effect of the pallet.
[0044] Optionally, in some embodiments of this application, the tray has:
[0045] A lifting slot is configured to cooperate with an external lifting mechanism so that the tray can be separated from the base under the action of the lifting mechanism;
[0046] Wherein, on the projection plane perpendicular to the first direction, at least a portion of the projection of the jacking groove wall is located inside the projection of the inner wall of the jacking window.
[0047] By adopting the above scheme, the lifting slot allows the pallet to be better held by the lifting mechanism, improving the stability of the pallet during lifting and lowering. Furthermore, the projection limitations of the lifting slot and lifting window ensure that the lifting mechanism can pass through the lifting window and cooperate with the lifting slot.
[0048] Optionally, in some embodiments of this application, the supporting device further includes:
[0049] A pad is disposed on the side of the tray away from the base;
[0050] At least a portion of the pad is embedded in the tray.
[0051] By adopting the above solution and setting up the pad, the impact force can be absorbed, preventing the battery from being collided, squeezed or worn during transportation.
[0052] Secondly, embodiments of the present invention provide a transmission system, including a conveying device and a carrying device as described above;
[0053] The base is mounted on the conveying device so that the conveying device drives the base. Attached Figure Description
[0054] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0055] Figure 1This is a three-dimensional schematic diagram of the support device provided in an embodiment of this utility model;
[0056] Figure 2 This is a three-dimensional schematic diagram of the carrier device and battery provided in an embodiment of this utility model;
[0057] Figure 3 This is an exploded view of the supporting device provided in an embodiment of this utility model;
[0058] Figure 4 yes Figure 3 Enlarged view of section A;
[0059] Figure 5 This is a three-dimensional schematic diagram of the tray in the carrying device provided in an embodiment of this utility model;
[0060] Figure 6 yes Figure 5 Enlarged view of section B;
[0061] Figure 7 This is a three-dimensional schematic diagram of the tray and clamping components in the carrying device provided by an embodiment of this utility model;
[0062] Figure 8 yes Figure 7 Enlarged view of section C;
[0063] Figure 9 yes Figure 7 Enlarged view of section D.
[0064] Explanation of reference numerals in the attached figures:
[0065] 100. Bearing device;
[0066] 110. Base; M1. First positioning structure; 111. Positioning hole; 112. Lifting window;
[0067] 120. Pallet; M2. Second positioning structure; 121. Positioning pin; 122. Lifting groove;
[0068] N, Clamping components;
[0069] 130. Limiting element; 130a. Accommodation space;
[0070] 131. Body; 131a. Limiting surface; 131b. Guiding surface; 131c. Transition surface;
[0071] 132. Gear shift section;
[0072] 140. Pad; 210. Battery. Detailed Implementation
[0073] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model.
[0074] In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in its actual use or operating state, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. Furthermore, in the description of this application, the term "comprising" means "including but not limited to". The terms first, second, third, etc., are used merely as illustrative purposes and do not impose numerical requirements or establish a numerical order.
[0075] In this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural.
[0076] Firstly, referring to Figure 1 , Figure 2 , Figure 3 and Figure 5 This application provides a carrying device 100, including: a base 110, a tray 120 and a clamping assembly N.
[0077] The base 110 is configured to connect to an external conveying device; the tray 120 is detachably connected to the base 110 along a first direction; a holding assembly is mounted on the tray 120, and the clamping assembly N is configured to limit the battery 210 to a first preset position on the tray 120. The base 110 is provided with a first positioning structure M1, and the tray 120 is provided with a second positioning structure M2 that cooperates with the first positioning structure M1 to position the tray 120 to a second preset position on the base 110.
[0078] It is understood that the base 110 can be fixed to the conveying device so that the pallet 120 and the battery 210 can be transported to the designated workstation under the drive of the conveying device; the pallet 120 can be attached to the base 110 or separated from the base 110 along the first direction; during the process of attaching the pallet 120 to the base 110, the positioning of the pallet 120 and the base 110 can be assisted by the cooperation of the first positioning structure M1 and the second positioning structure M2. The first preset position and the second preset position can be the same position or different positions on a coordinate plane perpendicular to the first direction.
[0079] By adopting the above scheme, the battery 210 can be positioned at a first preset position on the tray 120 by setting the clamping component N, so as to effectively clamp the battery 210. Furthermore, through the detachable connection between the base 110 and the tray 120, if the specifications of the battery 210 exceed the applicable range of the clamping component N, different trays 120 can be replaced to adapt to the specifications of the battery 210, thereby improving the applicability of the carrying device 100. At the same time, through the setting of the first positioning structure M1 and the second positioning structure M2, the accurate positioning of the tray 120 and the base 110 can be achieved during the replacement of the tray 120.
[0080] It should be noted that the first direction, indicating the up and down direction, is only for the convenience of introducing specific embodiments of this application. There is no absolute correspondence between the first direction and the up and down direction. Similarly, there is no absolute correspondence between the second direction and the left and right direction, and between the third direction and the front and back direction. Furthermore, the first direction, second direction, and third direction of this application are only used to express relative positional relationships; they only indicate approximate locations, not absolute geometric relationships.
[0081] In one example of this application, the first preset position may be the position of the upper surface of the tray 120, and the second preset position may be the position of the upper surface of the base 110.
[0082] In some specific embodiments, the number of trays 120 installed on the same base 110 can be adjusted according to the design requirements of the battery 210 processing production line; the number of clamping components N set on the same tray 120 can also be adjusted according to the design requirements of the battery 210 processing production line.
[0083] In one example of this application, reference is made to Figure 1 and Figure 2 Two trays 120 are mounted on the same base 110, and a battery 210 is held on the same tray 120.
[0084] In some embodiments of this application, reference is made to Figures 3 to 6 The first positioning structure M1 includes a positioning hole 111. The second positioning structure M2 includes a positioning pin 121. At least a portion of the positioning pin 121 is inserted into the positioning hole 111.
[0085] By adopting the above solution, the positioning pin 121 and the positioning hole 111 can be used to quickly position the pallet 120 on the base 110, improve the replacement efficiency of the pallet 120, and reduce the downtime of the conveying device.
[0086] In one example of this application, the positioning hole 111 is provided on the upper surface of the base 110, while the positioning pin 121 protrudes from the lower surface of the tray 120.
[0087] It should be noted that the positions of the locating pin 121 and the locating hole 111 can also be interchanged, that is, the specific structure of the first locating structure M1 and the second locating structure M2 can be selected according to the design requirements.
[0088] In some other embodiments of this application, the first positioning structure M1 includes a positioning pin 121. The second positioning structure M2 includes a positioning hole 111. At least a portion of the positioning pin 121 is inserted into the positioning hole 111.
[0089] In some specific implementations, the number and position of the positioning holes 111 and the positioning pins 121 correspond one-to-one; or the number of positioning holes 111 is greater than the number of positioning pins 121, so as to provide more positioning options.
[0090] In some embodiments of this application, reference is made to Figure 5 On the projection plane perpendicular to the first direction, the projections of at least two locating pins 121 are located diagonally opposite the projection of the tray 120.
[0091] By adopting the above scheme, the projections of the two positioning pins 121 are positioned diagonally opposite the projection of the tray 120, and the two positioning pins 121 are far apart, resulting in high positioning accuracy. Simultaneously, under this projection relationship constraint, 180° reverse installation errors can be avoided when the tray 120 is assembled with the base 110, thus ensuring the consistency of the battery 210 orientation (e.g., the orientation of the positive and negative terminals) on each tray 120.
[0092] In some other embodiments of this application, the first positioning structure M1 and the second positioning structure M2 may also be engaged by a snap-fit mechanism.
[0093] In some embodiments of this application, reference is made to Figure 7 The clamping component N includes: a limiting member 130.
[0094] The limiting member 130 is detachably connected to the tray 120; at least two limiting members 130 are spaced apart along a second direction, and at least two limiting members 130 are spaced apart along a third direction to enclose a receiving space 130a for receiving the battery 210; the second direction and the third direction intersect the first direction respectively, and the second direction intersects the third direction. More specifically, the first direction, the second direction, and the third direction are inclined to each other or perpendicular to each other.
[0095] It is understood that only one limiting member 130 or at least two limiting members 130 can be set on the same side of the same accommodating space 130a. Multiple limiting members 130 on the same pallet 120 can also enclose one accommodating space 130a or at least two accommodating spaces 130a. The number and arrangement of the limiting members 130 can be selected according to the design requirements.
[0096] By adopting the above solution, the battery 210 can be stably clamped by the cooperation of the limiting member 130 in the second direction and the third direction upward. At the same time, since the limiting member 130 is detachably connected to the tray 120, different sizes of limiting members 130 can be replaced according to the specifications of the battery 210, thereby improving the applicability of the clamping assembly N.
[0097] In some embodiments of this application, reference is made to Figure 7 and Figure 8 The limiting member 130 has a limiting surface 131a and a guiding surface 131b. The limiting surface 131a is configured to abut against the battery 210; the guiding surface 131b is located on the side of the limiting surface 131a away from the tray 120.
[0098] It is understood that the limiting surfaces 131a of multiple limiting members 130 abut against the same battery 210 to limit the battery 210; while the guiding surface 131b guides the battery 210 during the feeding process, so that the battery 210 is accurately placed between at least two limiting surfaces 131a, which facilitates the feeding operation of the battery 210.
[0099] In some embodiments of this application, reference is made to Figure 7 and Figure 8 In the second direction, the distance between the guide surfaces 131b of the two oppositely arranged limiting members 130 is greater than or equal to the distance between the limiting surfaces 131a of the two oppositely arranged limiting members 130.
[0100] It can be understood that the two limiting members 130 being arranged opposite each other in the second direction indicates that the two limiting members 130 are located on opposite sides of the receiving space 130a, and the two limiting members 130 can be arranged symmetrically relative to a reference surface perpendicular to the second direction; the distance between the guide surfaces 131b of the two limiting members 130 being arranged opposite each other can be the distance between the intersection of a virtual straight line parallel to the second direction and the two guide surfaces 131b.
[0101] By adopting the above scheme, since the position of the limiting member 130 is fixed during the feeding process, the battery 210 first contacts the guide surface 131b when it enters the clamping assembly N, and then is guided to contact the limiting surface 131a. This can reduce the alignment accuracy between the battery 210 and the limiting member 130 in the second direction during the feeding process.
[0102] In some embodiments of this application, reference is made to Figure 7 and Figure 8 In the third direction, the distance between the guide surfaces 131b of the two relatively positioned limit members 130 is greater than or equal to the distance between the limiting surfaces 131a of the two relatively positioned limit members 130.
[0103] It can be understood that the two limiting members 130 being arranged opposite each other in a third direction indicates that the two limiting members 130 are located on opposite sides of the receiving space 130a, and the two limiting members 130 can be arranged symmetrically relative to a reference surface perpendicular to the third direction; the distance between the guide surfaces 131b of the two limiting members 130 being arranged opposite each other can be the distance between the intersection of a virtual straight line parallel to the third direction and the two guide surfaces 131b.
[0104] By adopting the above solution, since the position of the limiting member 130 is fixed during the feeding process, the battery 210 first contacts the guide surface 131b when it enters the clamping assembly N, and then is guided to contact the limiting surface 131a. This can reduce the alignment accuracy of the battery 210 with the limiting member 130 in the third direction during the feeding process.
[0105] It should be noted that, in the same clamping assembly N, it may be limited only to the second direction that the distance between the guide surfaces 131b of the two oppositely arranged limiting members 130 is greater than or equal to the distance between the limiting surfaces 131a of the two oppositely arranged limiting members 130; or, in the same clamping assembly N, it may be limited only to the third direction that the distance between the guide surfaces 131b of the two oppositely arranged limiting members 130 is greater than or equal to the distance between the limiting surfaces 131a of the two oppositely arranged limiting members 130; or, in the same clamping assembly N, the distance relationship in both of the above directions may be satisfied simultaneously.
[0106] In one example of this application, the guide surface 131b can be set as a slope or a curved surface.
[0107] In some embodiments of this application, reference is made to Figure 8 The limiting member 130 also has a transition surface 131c. The transition surface 131c is located between the limiting surface 131a and the guide surface 131b; the connection between the transition surface 131c and the limiting surface 131a is smoothly provided, and the connection between the transition surface 131c and the guide surface 131b is smoothly provided.
[0108] By adopting the above scheme, a smooth transition is achieved between the limiting surface 131a and the guiding surface 131b through the setting of the transition surface 131c, so that the battery 210 can fall smoothly into the limiting surface 131a.
[0109] In one example of this application, the transition surface 131c can be set as an arc surface.
[0110] In some embodiments of this application, reference is made to Figure 8 The limiting member 130 also includes a body 131 and a stop portion 132. The body 131 forms a limiting surface 131a and a guide surface 131b; the stop portion 132 protrudes relative to the body 131 in a direction close to the base 110; in a second direction or a third direction, the stop portion 132 abuts against the tray 120.
[0111] It is understood that the stop portion 132 of the limiting member 130, which is spaced apart along the second direction, abuts against the side wall of the tray 120 along the second direction; the stop portion 132 of the limiting member 130, which is spaced apart along the third direction, abuts against the side wall of the tray 120 along the third direction.
[0112] By adopting the above solution and setting the stop part 132, the limiting part can be quickly positioned on the tray 120.
[0113] In some specific embodiments, the body 131 and the tray 120 are fixed by bolts, screws, pins, etc., so as to achieve a detachable connection between the limiting member 130 and the tray 120; or the body 131 and the tray 120 are fixed by a snap-fit connection, so as to achieve a detachable connection between the limiting member 130 and the tray 120.
[0114] In some embodiments of this application, reference is made to Figure 3 The base 110 has a lifting window 112. The lifting window 112 extends through the base 110 in a first direction; the tray 120 covers the lifting window 112.
[0115] By adopting the above solution, by setting a lifting window 112 in the base 110, space is provided for the lifting mechanism to perform lifting operations on the pallet 120, and the space utilization rate is high, while the weight of the base 110 can be reduced.
[0116] In one example of this application, on the projection plane perpendicular to the first direction, the projection of the inner wall of the lifting window 112 is inside the projection of the tray 120, ensuring that the tray 120 can be stably erected on the base 110.
[0117] In some embodiments of this application, reference is made to Figure 3 and Figure 4 The first positioning structure M1 is located around the lifting window 112.
[0118] By adopting the above scheme, the first positioning structure M1 is set at the periphery of the lifting window 112, which can improve the compactness of the structure while ensuring the positioning effect of the pallet 120.
[0119] In one example of this application, two positioning holes 111 are located diagonally opposite the lifting window 112.
[0120] In some embodiments of this application, reference is made to Figure 5 and Figure 7 The tray 120 has a lifting groove 122. The lifting groove 122 is configured to cooperate with an external lifting mechanism so that the tray 120 can be separated from the base 110 under the action of the lifting mechanism; on a projection plane perpendicular to the first direction, at least a portion of the groove wall projection of the lifting groove 122 is located inside the inner wall projection of the lifting window 112.
[0121] By adopting the above scheme, the lifting groove 122 allows the pallet 120 to be better held by the lifting mechanism, improving the stability of the pallet 120 during lifting and lowering. Furthermore, the projection limitation of the lifting groove 122 and the lifting window 112 ensures that the lifting mechanism can pass through the lifting window 112 and cooperate with the lifting groove 122.
[0122] In one example of this application, a portion of the lifting slot 122 extends through the tray 120.
[0123] In some embodiments of this application, a positioning protrusion is provided at the bottom of the tray 120. The size of the positioning protrusion is the same as the inner wall size of the lifting window 112, so that the positioning of the tray 120 on the base 110 can also be achieved through the cooperation of the positioning protrusion and the lifting window 112. In this embodiment, the first positioning structure M1 can be the lifting window 112, and the second positioning structure M2 can be the positioning protrusion.
[0124] In some embodiments of this application, reference is made to Figure 7 and Figure 9 The support device 100 also includes a pad 140. The pad 140 is disposed on the side of the pallet 120 away from the base 110; at least a portion of the pad 140 is embedded in the pallet 120.
[0125] It is understandable that the stiffness of the pad 140 is less than that of the pallet 120.
[0126] By adopting the above solution, the pad 140 can absorb the impact force and prevent the battery 210 from being collided, squeezed or worn during transportation.
[0127] In some specific embodiments, the material of the pad 140 can be one of plastic, rubber, etc.
[0128] To accommodate batteries 210 of different specifications, and while ensuring the limiting effect of the tray 120 on the pad 140, the size of the pad 140 can be slightly smaller than the size of the tray 120. In this case, the limiting member 130 will cover both the pad 140 and the tray 120. In one example of this application, the upper surface of the pad 140 is flush with the upper surface of the tray 120, which can prevent the limiting member 130 from tilting due to the height difference between the pad 140 and the tray 120.
[0129] Secondly, this application provides a transmission system including a conveying device and a carrying device 100 as described above; a base 110 is mounted on the conveying device to enable the conveying device to drive the base 110.
[0130] The transmission system has all the beneficial effects of the aforementioned carrier device 100, which will not be repeated here.
[0131] In some specific embodiments, the conveying device may be a guide rail conveyor line, a conveyor belt, etc., but the embodiments of this application do not limit the conveying device.
[0132] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A supporting device, characterized in that, include: The base is configured to connect to an external conveying device; The tray is detachably connected to the base along the first direction; A clamping assembly is mounted on the tray, the clamping assembly being configured to limit the battery to a first preset position on the tray; The base is provided with a first positioning structure, and the tray is provided with a second positioning structure that cooperates with the first positioning structure to position the tray to a second preset position on the base.
2. The bearing device according to claim 1, characterized in that, One of the first positioning structure and the second positioning structure includes: a positioning hole; The other of the first and second positioning structures includes: a positioning pin; At least a portion of the positioning pin is inserted into the positioning hole.
3. The bearing device according to claim 2, characterized in that, On a projection plane perpendicular to the first direction, the projections of at least two of the locating pins are located diagonally opposite the projection of the tray.
4. The bearing device according to any one of claims 1 to 3, characterized in that... The clamping assembly includes: A limiting component, detachably connected to the tray; Among them, at least two limiting members are spaced apart along the second direction, and at least two limiting members are spaced apart along the third direction to enclose a receiving space for accommodating the battery; The second direction and the third direction intersect the first direction, and the second direction intersects the third direction.
5. The bearing device according to claim 4, characterized in that, The limiting member has: The limiting surface is configured to abut against and cooperate with the battery; A guide surface is located on the side of the limiting surface away from the tray; In the second direction, the distance between the guide surfaces of the two oppositely arranged limiting members is greater than or equal to the distance between the limiting surfaces of the two oppositely arranged limiting members; And / or, in the third direction, the distance between the guide surfaces of the two oppositely positioned limiting members is greater than or equal to the distance between the limiting surfaces of the two oppositely positioned limiting members.
6. The bearing device according to claim 5, characterized in that, The limiting member also has: A transition surface is located between the limiting surface and the guiding surface; The transition surface and the limiting surface are smoothly connected, and the transition surface and the guide surface are smoothly connected.
7. The bearing device according to claim 5, characterized in that, The limiting component also includes: The body has the limiting surface and the guiding surface; The stop portion protrudes relative to the body in a direction closer to the base; In the second direction or the third direction, the stop part abuts against the tray.
8. The bearing device according to any one of claims 1 to 3, characterized in that, The base has: A lifting window extends through the base along the first direction; The tray covers the lifting window.
9. The bearing device according to claim 8, characterized in that, The first positioning structure is located around the periphery of the lifting window.
10. The bearing device according to claim 8, characterized in that, The tray has: The lifting slot is configured to cooperate with an external lifting mechanism so that the tray can be separated from the base under the action of the lifting mechanism; Wherein, on the projection plane perpendicular to the first direction, at least a portion of the projection of the jacking groove wall is located inside the projection of the inner wall of the jacking window.
11. The bearing device according to any one of claims 1 to 3, characterized in that, The supporting device further includes: A pad is disposed on the side of the tray away from the base; At least a portion of the pad is embedded in the tray.
12. A transmission system, characterized in that, Includes a conveying device and a carrying device as described in any one of claims 1 to 11; The base is mounted on the conveying device so that the conveying device drives the base.