Side-hung battery replacement type power battery vibration reduction frame and mining wide-body dumper

Abstract

The utility model discloses a side-hung battery-changing type power battery damping frame and a mining wide-body dumper. The side-hung battery-changing type power battery damping frame comprises a primary battery frame, a secondary battery frame and a plurality of damping parts, the primary battery frame is fixed to the side of the frame girder through a fastener; a battery box is assembled in the secondary battery frame, and the secondary battery frame is arranged in the primary battery frame; the plurality of damping parts are arranged between the primary battery frame and the secondary battery frame and are used for fixing the secondary battery frame on the primary battery frame in a suspended manner, so that the secondary battery frame is elastically buffered in the vertical direction, the longitudinal direction and the transverse direction, and the transmission of medium-high frequency vibration is effectively isolated.

Description

Technical Field

[0001] The utility model relates to a side-mounted battery-changing power battery vibration reduction frame, belonging to the technical field of wide-body dump trucks for mining. Background Art

[0002] Pure electric wide-body dump trucks for mining are increasingly widely used in the transportation of earth and ore in mining areas due to their low energy consumption ratio and power performance. At present, the main installation methods of power batteries include side-mounted and backpack-mounted. The side-mounted type refers to arranging the battery frame on the outside or inside of the frame beam and stacking the power battery on the battery frame. The side-mounted battery replacement power battery system is based on the battery box designed to be replaceable to achieve efficient energy replenishment of the vehicle.

[0003] Due to the large vibrations in the operation of wide-body mining dump trucks, the battery box is subjected to the vertical, lateral and longitudinal vibrations transmitted from the frame. The battery frame of the battery-swap type often has a poor overall vibration reduction effect due to its structural layout, resulting in fatigue failure of the battery box and battery frame structure, and even reducing the service life of the battery. Summary of the invention

[0004] In view of the shortcomings of the prior art, the utility model provides a side-mounted battery-swap power battery vibration reduction frame, which achieves attenuation of impact and vibration in three directions (longitudinal, lateral, and vertical), and effectively isolates the transmission of medium and high frequency vibrations.

[0005] The utility model is implemented according to the following technical solutions:

[0006] In a first aspect, the utility model discloses a side-mounted battery-swap power battery vibration reduction frame, comprising:

[0007] A primary battery frame is fixed to the side of the frame beam by fasteners;

[0008] A secondary battery frame with a battery box assembled inside is arranged in the primary battery frame;

[0009] A plurality of shock-absorbing components are arranged between the primary and secondary battery frames and are used to fix the secondary battery frame in a suspended manner on the primary battery frame, thereby achieving elastic buffering of the secondary battery frame in vertical, longitudinal and lateral directions.

[0010] In some embodiments, the secondary battery frame is equipped with a plurality of rubber vibration-damping pads on the bottom surface facing the battery box to absorb vertical vibrations of the secondary battery frame and the battery box mounted thereon.

[0011] In some embodiments, the shock absorbing component is a wire rope isolator, and its ends are fixedly connected to the wire rope isolator bolt holes on the primary battery frame and the secondary battery frame by bolts.

[0012] In some embodiments, the primary battery frame is composed of a base plate and a plurality of spaced-apart frame connection seats located at the rear edge of the base plate and extending vertically upward; bolt holes are provided on the upper portion of the frame connection seats, which are fixed to the side of the frame beam by bolts.

[0013] In some embodiments, a plurality of frame reinforcement ribs opposed to each other are provided between the bottom plate and the frame connection seats on both sides; a plurality of side beam ribs spaced apart up and down are installed on the plurality of spaced-apart frame connection seats; and a plurality of bottom beam ribs spaced apart front and back are installed on the bottom plate.

[0014] In some embodiments, the secondary battery frame is mounted with a multi-stage positioning structure for facilitating assembly of the battery box.

[0015] In some embodiments, the multi-level positioning structure includes:

[0016] The auxiliary guide positioning block constituting the primary positioning structure, the battery box located above the secondary battery frame is parallel to and close to the auxiliary guide positioning block and then gradually falls down;

[0017] The coarse guide trapezoidal positioning block constituting the secondary positioning structure realizes the positioning of the battery box in the main viewing direction under the guidance of its conicity;

[0018] The fine guide trapezoidal positioning block constituting the three-level positioning structure realizes the left-right positioning of the battery box under the guiding action of the trapezoidal block, and the square block at the bottom of the trapezoidal block cooperates with the battery box to realize the precise positioning of the battery box.

[0019] In some embodiments, the secondary battery frame is equipped with a locking structure for fixing the battery box dropped therein.

[0020] In some embodiments, the locking structure includes:

[0021] The transverse locking block is a T-shaped wedge-shaped block, which is inserted into the transverse locking track on the back of the battery box to fasten the battery box to the side plate of the secondary battery frame to achieve longitudinal fixation of the battery box;

[0022] The longitudinal locking block is a wedge-shaped block as a whole, which is inserted into the longitudinal locking track on the side of the battery box to achieve transverse fixation of the battery box.

[0023] In some embodiments, the secondary battery frame is composed of a bottom plate, a rear plate and two side plates, and any one or both of the side plates are set as a hollow structure for use as an electrical compartment for installing electrical components; a plurality of reinforcing ribs are provided on the back of the rear plate and the bottom of the bottom plate.

[0024] In a second aspect, the utility model discloses a wide-body dump truck for mining, comprising a frame, on which the above-mentioned side-mounted battery-swap power battery vibration reduction frame is installed.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] 1. The use of wire rope vibration isolators and rubber vibration pads achieves double vibration reduction, effectively attenuating medium and high frequency vibrations and shocks. The vibration attenuation rate above 30Hz is greater than 80%;

[0027] 2. The three-level guide positioning mechanism consisting of auxiliary guide positioning blocks, coarse guide conical pins and fine guide trapezoidal blocks effectively reduces the difficulty of installation and positioning when replacing batteries by hoisting or fork-mounting, and improves the battery replacement efficiency.

[0028] 3. Use longitudinal and transverse locking blocks to lock the longitudinal and transverse movement of the battery box, ensuring the reliable connection of the power battery electrical interface and enhancing the connection stiffness between the battery box and the secondary battery frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0030] In the attached picture:

[0031] Figure 1 It is an isometric diagram of the overall structure of the side-mounted battery-swap power battery vibration reduction frame of the utility model;

[0032] Figure 2 This is a front view of the overall structure of the side-mounted battery-swap power battery vibration reduction frame of the utility model;

[0033] Figure 3 This is a rear view of the overall structure of the side-mounted battery-swap power battery vibration reduction frame of the utility model;

[0034] Figure 4 It is a top view of the overall structure of the side-mounted battery-swap power battery vibration reduction frame of the utility model;

[0035] Figure 5 This is a bottom view of the overall structure of the side-mounted battery-swap power battery vibration reduction frame of the utility model;

[0036] Figure 6 This is a left view of the overall structure of the side-mounted battery-swap power battery vibration reduction frame of the utility model;

[0037] Figure 7 This is a partial view of the overall structure of the side-mounted battery-swap power battery vibration reduction frame of the utility model;

[0038] Figure 8 This is an isometric view of the battery box installed on the side-mounted battery-swap power battery vibration reduction frame of the utility model.

[0039] Figure identification: 1 first-level battery frame, 2 second-level battery frame, 3 rubber vibration damping pad, 4 wire rope isolator, 5 battery box, 11 frame reinforcement rib plate, 12 frame connecting seat, 13 side beam rib plate, 14 bottom beam rib plate, 21 longitudinal locking block, 22 coarse guide conical locating pin, 23 electrical compartment, 24 auxiliary guide locating block, 25 transverse locking block, 26 wire rope isolator bolt hole, 27 fine guide trapezoidal locating block, 28 side reinforcement rib, 29 bottom reinforcement rib.

[0040] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5, Figure 6 , Figure 7 , Figure 8 As shown, the utility model provides a side-mounted battery-swap power battery vibration reduction frame, comprising a primary battery frame 1, a secondary battery frame 2, a rubber vibration reduction pad 3, and a wire rope vibration isolator 4.

[0045] The primary battery frame 1 is fixed to the side of the frame beam by bolts through the frame connecting seat 12, and multiple wire rope isolators 4 are installed between the secondary battery frame 2 and the primary battery frame 1, and the end of each wire rope isolator 4 is fixedly connected to the wire rope isolator bolt hole 26 of the primary battery frame 1 and the secondary battery frame 2 by bolts; multiple rubber vibration damping pads 3 are fixedly installed above the secondary battery frame 2 by bolts; the primary battery frame 1 is provided with a frame reinforcement rib plate 11, a side beam rib plate 13, and a bottom beam rib plate 14; the secondary battery frame 2 is provided with side reinforcement ribs 28 and a bottom reinforcement rib 29; the secondary battery frame 2 is provided with an electrical compartment 23; a multi-stage positioning structure and a locking structure are provided on the secondary battery frame 2 to realize the positioning and locking of the battery box 5 when replacing, specifically including an auxiliary guide positioning block 24, a coarse guide conical positioning pin 22, a fine guide trapezoidal positioning block 27, a longitudinal locking block 21 and a transverse locking block 25.

[0046] The above-mentioned primary battery framework is further described below:

[0047] like Figure 2 , Figure 3 As shown, the primary battery frame 1 is composed of a bottom plate and three frame connection seats 12 arranged at intervals and extending vertically upward at the rear edge of the bottom plate; the upper part of the frame connection seat 12 is provided with bolt holes, which are fixed to the side of the frame beam by bolts. In order to improve the strength of the primary battery frame 1, a plurality of frame reinforcement ribs 11 ( Figure 1 As shown, two side beam ribs 13 (arranged in intervals from top to bottom) are installed on a plurality of frame connection seats 12 arranged at intervals. Figure 3 As shown in FIG. 1 ), a plurality of bottom beam ribs 14 (such as Figure 5 as shown).

[0048] The secondary battery frame described above is further described below:

[0049] like Figure 1 As shown, the secondary battery frame 2 is composed of a bottom plate, a rear plate and two side plates. One or both side plates are set as a hollow structure, which is used as an electrical compartment 23 for installing electrical components to ensure that the electrical components are not exposed and improve the electrical safety of the electrical components. In order to improve the strength of the secondary battery frame 2, a plurality of side reinforcing ribs 28 ( Figure 3As shown, a plurality of bottom reinforcing ribs 29 ( Figure 5 As shown). Nine wire rope isolators 4 are evenly arranged at the bottom of the secondary battery frame 2, and six wire rope isolators 4 are evenly distributed at the rear of the secondary battery frame 2. A total of 15 wire rope isolators 4 are connected to the secondary battery frame 2 and the primary battery frame 1 by bolts, so that the secondary battery frame 2 is suspended and fixed on the primary battery frame 1. The wire rope isolators 4 have high attenuation when facing strong impact vibrations, so that the medium and high frequency vibrations and impacts in the vertical, longitudinal and transverse directions of the primary battery frame 1 are absorbed and weakened by the wire rope isolators 4, ensuring that the secondary battery frame 2 has elastic buffering in the vertical, longitudinal and transverse directions, effectively reducing road impact, rockfall impact in the cargo box and random vibration during the running process. Six rubber vibration damping pads 3 are set on the upper part of the secondary battery frame 2 to absorb the vertical high-frequency vibrations of the secondary battery frame 2 and the power battery box installed thereon.

[0050] In order to facilitate the rapid positioning and installation when replacing the battery box, auxiliary guide positioning blocks 24 are set on both sides of the rear plate of the secondary battery frame 2, a coarse guide conical positioning pin 22 is set on the top surface of one side plate of the secondary battery frame 2, a fine guide trapezoidal positioning block 27 is set on the top surface of the other side plate of the secondary battery frame 2, a transverse locking block 25 is set in the middle of the rear plate of the secondary battery frame 2, and a longitudinal locking block 21 is set on the inner side of the side plate of the secondary battery frame 2. The coarse guide conical positioning pin 22 is a conical pin with a draft angle greater than 3 degrees ( Figure 7 The upper part of the fine guide trapezoidal positioning block 27 is a trapezoidal block, and the lower part is a square block ( Figure 7 Partial view D); longitudinal locking block 21 is a wedge-shaped block ( Figure 7 Partial view A), the transverse locking block 25 is a T-shaped wedge block ( Figure 7 Partial view of C).

[0051] like Figure 8As shown, the guide positioning process of replacing the battery box 5 is as follows: a. The battery box 5 is hoisted or forked to the top of the secondary battery frame 2, and the battery box 5 slowly falls and approaches the auxiliary guide positioning block 24, so that the battery box 5 is as parallel as possible to the two auxiliary guide positioning blocks 24 and the distance between the two is less than 20mm; b. During the falling process of the battery box 5, the coarse guide conical positioning pin 22 is first inserted, and the positioning in the main viewing direction is achieved under the guiding effect of the conicity; c. The battery box 5 continues to fall and is inserted into the upper trapezoidal block of the fine guide trapezoidal positioning block 27, and the left and right direction positioning of the battery box is achieved under the guiding effect of the trapezoidal block; then the lower square block of the fine guide trapezoidal positioning block 27 and the battery box cooperate to achieve accurate positioning of the battery box. d. The battery box 5 continues to fall, and the transverse locking track of the battery box 5 enters the transverse locking block 25. The T-shaped track of the transverse locking block 25 fastens the battery box and the side plate of the secondary battery frame 2, thereby fixing the battery box 5 longitudinally and enhancing the connection rigidity of the battery box 5 and the secondary battery frame 2. e. The battery box 5 continues to fall, and the longitudinal locking track of the battery box 5 enters the longitudinal locking block 21 to achieve transverse fixation of the battery box 5.

[0052] In summary, the side-mounted battery-swap power battery vibration reduction frame provided by the utility model realizes the following functions:

[0053] a) 15 wire rope isolators are used between the primary battery frame and the secondary battery frame to fix the secondary battery frame in a suspended manner on the primary battery frame, achieving attenuation of impact and vibration in three directions (longitudinal, transverse, and vertical), and effectively isolating the transmission of medium and high frequency vibrations.

[0054] b) Auxiliary guide positioning blocks, coarse guide conical positioning pins and fine guide trapezoidal positioning blocks are used to achieve three-level guide positioning, which effectively solves the problem of difficult positioning when replacing batteries during hoisting or fork-mounted installation.

[0055] c) Use rubber vibration damping pads to perform secondary vibration damping on the battery box, effectively absorbing the vertical medium and high frequency vibrations of the secondary battery frame and battery box.

[0056] d) The use of transverse locking blocks and longitudinal locking blocks effectively limits the longitudinal and transverse fixation of the battery box, while enhancing the connection stiffness between the battery box and the secondary battery frame.

[0057] e) Multiple reinforcing ribs are added to the primary battery frame and the secondary battery frame, which reduces the mass of the battery vibration reduction frame while increasing the stiffness of the battery vibration reduction frame and enhancing the vibration fatigue strength of the battery vibration reduction frame.

[0058] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0059] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0060] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A side-mounted battery-swap power battery vibration reduction frame, characterized in that: include: A primary battery frame is fixed to the side of the frame beam by fasteners; A secondary battery frame with a battery box assembled inside is arranged in the primary battery frame; A plurality of shock-absorbing components are arranged between the primary and secondary battery frames and are used to fix the secondary battery frame in a suspended manner on the primary battery frame, thereby achieving elastic buffering of the secondary battery frame in vertical, longitudinal and lateral directions.

2. A side-mounted battery-swap power battery vibration reduction frame according to claim 1, characterized in that: The secondary battery frame is provided with a plurality of rubber vibration-damping pads on the bottom surface facing the battery box, so as to absorb the vertical vibration of the secondary battery frame and the battery box mounted thereon.

3. A side-mounted battery-swap power battery vibration reduction frame according to claim 1, characterized in that: The shock absorbing component is a wire rope isolator, and the ends of the wire rope isolator are fixedly connected to the bolt holes of the wire rope isolator on the primary battery frame and the secondary battery frame through bolts.

4. A side-mounted battery-swap power battery vibration reduction frame according to claim 1, characterized in that: The primary battery frame is composed of a bottom plate and a plurality of spaced apart frame connection seats located at the rear edge of the bottom plate and extending vertically upward; The upper part of the frame connecting seat is provided with bolt holes, and is fixed to the side of the frame beam by bolts.

5. A side-mounted battery-swap power battery vibration reduction frame according to claim 4, characterized in that: A plurality of frame reinforcing rib plates facing each other are provided between the bottom plate and the frame connection seats on both sides; A plurality of side beam ribs arranged at intervals from top to bottom are installed on the plurality of frame connection seats arranged at intervals; A plurality of bottom beam ribs arranged at intervals in front and back are installed on the bottom plate.

6. The side-mounted battery-swap power battery vibration reduction frame according to claim 1, characterized in that: The secondary battery frame is provided with a multi-stage positioning structure for assembling the battery box.

7. A side-mounted battery-swap power battery vibration reduction frame according to claim 6, characterized in that: The multi-level positioning structure comprises: The auxiliary guide positioning block constituting the primary positioning structure, the battery box located above the secondary battery frame is parallel to and close to the auxiliary guide positioning block and then gradually falls down; The coarse guide trapezoidal positioning block constituting the secondary positioning structure realizes the positioning of the battery box in the main viewing direction under the guidance of its conicity; The fine guide trapezoidal positioning block constituting the three-level positioning structure realizes the left-right positioning of the battery box under the guiding action of the trapezoidal block, and the square block at the bottom of the trapezoidal block cooperates with the battery box to realize the precise positioning of the battery box.

8. A side-mounted battery-swap power battery vibration reduction frame according to claim 1, 6 or 7, characterized in that: The secondary battery frame is provided with a locking structure for fixing the battery box dropped therein.

9. A side-mounted battery-swap power battery vibration reduction frame according to claim 8, characterized in that: The locking structure comprises: The transverse locking block is a T-shaped wedge-shaped block, which is inserted into the transverse locking track on the back of the battery box to fasten the battery box to the side plate of the secondary battery frame to achieve longitudinal fixation of the battery box; The longitudinal locking block is a wedge-shaped block as a whole, which is inserted into the longitudinal locking track on the side of the battery box to achieve transverse fixation of the battery box.

10. The side-mounted battery-swap power battery vibration reduction frame according to claim 1, characterized in that: The secondary battery frame is composed of a bottom plate, a rear plate and two side plates, and any one or both side plates are configured as a hollow structure for use as an electrical compartment for installing electrical components; A plurality of reinforcing ribs are arranged on the back side of the rear plate and the bottom side of the bottom plate.

11. A wide-body dump truck for mining, comprising a frame, characterized in that: The side-mounted battery-swap power battery vibration reduction frame according to any one of claims 1 to 10 is installed on the vehicle frame.

Images