Logistics transfer frame for rear axle of new energy automobile

Abstract

The utility model relates to the field of transportation equipment, and discloses a new energy automobile rear axle logistics transfer frame which comprises a bottom frame provided with universal wheels at the bottom, a lower limiting part used for supporting and limiting a rear axle from the bottom is arranged on the bottom frame, and a containing space allowing a half shell part of the rear axle to be suspended is formed in the lower limiting part; and an upper limiting part for pressing the rear axle downwards is arranged on the underframe and above the lower limiting part. Through the upper limiting part and the lower limiting part on the bottom frame, the lower limiting part supports the rear axle and can limit the rear axle to shake and rotate to a certain degree, and the half shell part of the rear axle can be arranged in the containing space so that the rear axle cannot roll; the rear axle is pressed on the lower limiting part through the upper limiting part so that the situation that the rear axle jumps in the transferring and bumping process can be avoided, and therefore the rear axle is well fixed, and stability of the rear axle in the moving process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of transportation equipment, and in particular to a logistics transfer frame for the rear axle of a new energy vehicle. Background Technology

[0002] With the booming development of the automotive industry, the scale of automobile production continues to expand. As a key component of the automobile chassis system, the production and transportation efficiency of the rear axle is crucial to the entire automobile manufacturing process. With automobile production increasing year by year, how to transport the rear axle efficiently and safely has become a key focus for both automakers and logistics providers.

[0003] Traditionally, rear axles need to be transported to the packing area before packaging. However, the rear axle is large and heavy, making manual handling impossible; therefore, a transfer frame is necessary. A traditional transfer frame consists only of a base, push rod, and wheels. After the rear axle is transferred directly onto the frame, its weight stabilizes it on the base. The frame is then pushed to the packing area, completing the short-distance transport of the rear axle. However, during the process of pushing the transfer frame, uneven surfaces can cause it to bounce, and the rear axle has rolling parts, making it easy for it to detach from the base due to inertia. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a logistics transfer frame for the rear axle of a new energy vehicle to fix the rear axle.

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution as follows: a new energy vehicle rear axle logistics transfer frame includes a base frame with universal wheels at the bottom, a lower limiting part for supporting and limiting the rear axle from the bottom on the base frame, and a placement space for suspending the half-shell part of the rear axle on the lower limiting part; an upper limiting part for pressing down the rear axle is provided on the base frame and above the lower limiting part.

[0006] Furthermore, the underframe includes a base plate, and the omnidirectional wheels are located at the four corners of the base plate; the lower limiting part includes a bracket protruding from the base plate and a limiting block located on the top of the bracket, and a limiting groove is recessed on the limiting block for the bottom of the rear axle to be inserted therein.

[0007] Furthermore, the limiting blocks are configured as four and arranged in a rectangular array, and each limiting groove on each limiting block is opened in a horizontal direction. The placement space is formed on the support between each limiting block.

[0008] Furthermore, the bracket has support plates on both sides of the horizontal direction and the placement space, wherein two of the limiting blocks are set on one support plate with an adjustable interval along a longitudinal direction, and the other two of the limiting blocks are set on the other support plate with an adjustable interval along a longitudinal direction.

[0009] Furthermore, each of the aforementioned limiting blocks is slidably mounted on the support plate along the longitudinal direction and locked by a first locking member.

[0010] Furthermore, the limiting block is made of an elastic material.

[0011] Furthermore, the base frame also includes side frames disposed on both sides of the base plate; the upper limit position includes a top frame and a lower pressure block disposed on the top frame, the two ends of the top frame are respectively movably connected to the side frames so that the top frame can move up and down, and the lower pressure block is disposed directly opposite each lower limit position.

[0012] Furthermore, both side frames are provided with vertically distributed sliding rods, and both ends of the top frame have sleeves that are slidably sleeved on the sliding rods. The sleeves are screwed with locking first bolts for pressing against the sliding rods to restrict the movement of the sleeves.

[0013] Furthermore, the top frame includes a first part connected to one side of the slide rod via a sleeve, a second part connected to the other side of the slide rod via a sleeve, and a third part hinged on one side to the first part and detachably connected to the second part on the other side, with the pressure block fixedly connected to the bottom of the third part.

[0014] Furthermore, the third part has an overlapping end that overlaps the second part from top to bottom, and the overlapping end is provided with a second locking member for locking.

[0015] The new energy vehicle rear axle logistics transfer frame of this utility model has at least the following beneficial effects: the lower limit part supports the rear axle through the upper limit part and the lower limit part on the base frame, and can limit the shaking and rotation of the rear axle to a certain extent. The half shell part of the rear axle can be set in the placement space so that the rear axle cannot roll. The upper limit part presses the rear axle against the lower limit part to prevent the rear axle from jumping during the transfer bumps, thereby fixing the rear axle well and ensuring the stability of the rear axle during the movement. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the logistics transfer rack of this utility model;

[0018] Figure 2 for Figure 1 An enlarged schematic diagram of part A shown;

[0019] Figure 3 for Figure 1 An enlarged schematic diagram of part B shown.

[0020] The meanings of the labels in the attached diagram are as follows:

[0021] Base frame 1, casters 11, base plate 12, side plate 121, side frame 13, slide bar 131, side connecting rod 14, bottom connecting rod 15, bracket 21, vertical bar 211, longitudinal bar 212, support plate 213, slide groove 214, limiting block 22, limiting groove 221, placement space 23, top frame 31, sleeve 311, locking bolt 312, first part 31a, second part 31b, third part 31c, first transverse bar 313, first longitudinal bar 314, second transverse bar 315, second longitudinal bar 316, third transverse bar 317, overlapping end 318, second locking piece 319, lower pressure block 32, sleeve bar 321, pressure strip 322. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Please see Figures 1 to 3 The new energy vehicle rear axle logistics transfer frame of this utility model includes a base frame 1 with universal wheels 11 at the bottom, a lower limit part set on the base frame 1, and an upper limit part set on the base frame 1 and located above the lower limit part. The base frame 1 is used to provide support for the upper limit part and the lower limit part. The lower limit part is used to support the rear axle and limit the rear axle, thereby preventing the rear axle from rolling. The upper limit part is used to press down on the rear axle to prevent the rear axle from jumping.

[0024] In this embodiment, the base frame 1 includes a base plate 12 and side frames 13 disposed on both sides of the base plate 12. The base plate 12 supports the lower limiting part, and the side frames 13 support the upper limiting part. The base plate 12 includes a rectangular frame and two side plates 121 fixedly welded to the inner side of the frame. There is a hollow space between the two side plates 121, and the lower limiting part is installed in the hollow space. Casters 11 are fixedly installed at the four corners of the frame to facilitate the movement of the base frame 1. The frame and the support plate 213 can both be supported by high-strength aluminum alloy, which ensures strength while reducing weight. The side frames 13 are three-sided portal frames and are also made of high-strength aluminum alloy. One side faces upward away from the base plate 12, and the other two sides are arranged vertically and welded to the two feet of the frame. Side connecting rods 14 are welded to the side of the two side frames 13 along the longitudinal direction (i.e., the width direction of the frame) to enhance the stability between the two side frames 13.

[0025] In this embodiment, the lower limiting part includes a bracket 21 protruding above the base plate 12 and a limiting block 22 disposed on the top of the bracket 21. The bracket 21 allows the rear axle to be suspended above the base plate 12, thereby reducing the wear of the base plate 12 on the rear axle. The limiting block 22 cooperates with the bracket 21 to support the rear axle and restrict the movement of the rear axle.

[0026] In this embodiment, the bottom connecting rods 15 are fixedly welded to both sides of the hollow space along the horizontal direction (i.e., the length direction of the substrate). The bracket 21 includes four vertical rods 211, two longitudinal rods 212, and two support plates 213, which are distributed in the vertical direction respectively. One end of the two vertical rods 211 is welded to one of the bottom connecting rods 15, and one end of the other two vertical rods 211 is welded to the other bottom connecting rod 15. The four vertical rods 211 are distributed in a rectangular array. Two longitudinal rods 212 are distributed parallel to each other in the longitudinal direction, and the two ends of the two longitudinal rods 212 are respectively welded to the top of the vertical rods 211 on the two bottom connecting rods 15. Two support plates 213 are distributed parallel to each other in the transverse direction, and the two ends are respectively welded to the top of the two vertical rods 211 on the bottom connecting rods 15 on their respective sides, so that the support plates 213 and the longitudinal rods 212 form a square frame and the inner side is surrounded to form a placement space 23. The placement space 23 is hollowed out in the vertical direction. The support plates 213 are respectively placed on both sides of the placement space 23 so that the bottom of the rear axle half shell can be inserted into the placement space 23 and suspended in the air when the rear axle is installed.

[0027] In this embodiment, the limiting blocks 22 are set to at least two, preferably an even number, and a limiting groove 221 is recessed on the limiting blocks 22 for the bottom of the rear axle to be inserted into. The limiting blocks 22 have a square structure, and the limiting groove 221 is formed by recessing downward from the top of the limiting blocks 22.

[0028] In one embodiment, two limiting blocks 22 are provided and respectively disposed on two support plates 213, with the placement space 23 located between the two limiting blocks 22. In this case, the limiting groove 221 is arranged transversely. In use, the rear axle is placed transversely above the bracket 21, wherein the two end shafts of the rear axle are respectively inserted into the limiting grooves 221, and the half-shell portion is located in the placement space 23. The limiting grooves 221 can limit the shaking of the rear axle shafts by limiting them, and the half-shell portion will not be worn due to being suspended, thus better protecting the rear axle. It should be noted that in this embodiment, the rear axle refers to the half-shell and wheel hub tube in the rear axle assembly.

[0029] In another embodiment, four limiting blocks 22 are arranged in a rectangular array, distributed in pairs on two support plates 213. Specifically, two limiting blocks 22 are mounted on one support plate 213 and spaced apart longitudinally, while the other two are mounted on the other support plate 213 and spaced apart longitudinally. The limiting grooves 221 also extend laterally through the limiting blocks 22, and the limiting blocks 22 are symmetrically distributed in pairs. Placement spaces 23 are formed on the brackets 21 between the limiting blocks 22. In use, the method is the same as in the previous embodiment, but two rear axles can be placed simultaneously. To facilitate the placement of rear axles of different sizes or rear axle assemblies, each limiting block 22 is longitudinally and adjustablely positioned on its corresponding support plate 213, allowing adjustment of the spacing between the two supports on each support plate 213. In use, the hub portion of the rear axle assembly can be inserted into the two limiting grooves 221 on any of the support plates 213, while the half-shell and other parts are placed facing the placement space 23. After the bottom of the half-shell extends into the placement space 23, the half-shell abuts against the support plate 213 to support and limit the rear axle assemblies of different sizes. Each support plate 213 has a vertically extending sliding groove 214. The sliding groove 214 is fixedly connected to the limiting block 22, and after the first bolt slides through the sliding groove 214, a first nut is screwed onto the first bolt from the bottom of the support plate 213. When the first nut is not pressed against the support plate 213, the limiting block 22 can slide longitudinally. When it is necessary to fix the position of the limiting block 22, the first nut is tightened onto the support plate 213. In this embodiment, the first nut is defined as a first locking element, which is used to lock the limiting block 22 to prevent it from sliding.

[0030] In this embodiment, in order to reduce the wear generated by the limiting block 22 during the rear axle support process, the limiting block 22 is made of an elastic material such as rubber, so as to reduce the damage to the rear axle surface through elastic buffering. At the same time, the elastic material can also increase the friction between the limiting block 22 and the rear axle surface, thereby achieving a certain degree of anti-slip effect and improving the limiting effect on the rear axle.

[0031] In this embodiment, the upper limit part includes a top frame 31 vertically connected to the side frame 13 and a lower pressure block 32 disposed on the top frame 31. The top frame 31 is used to support the lower pressure block 32 and drive the lower pressure block 32 to move up and down. The lower pressure block 32 is used to press against the rear axle in the limiting groove 221 to prevent the rear axle from jumping up and down.

[0032] In this embodiment, each of the two side frames 13 is provided with vertically distributed sliding rods 131, and each end of the top frame 31 has sleeves 311 that are slidably fitted onto the sliding rods 131. To ensure stable sliding, each side frame 13 is provided with two vertically arranged sliding rods 131, and each end of the top frame 31 is fixedly connected with two sleeves 311 to slide on the corresponding two sliding rods 131, so that the top frame 31 can slide vertically up and down. Each sleeve 311 has a screw hole in the transverse or longitudinal direction, and a locking bolt 312 is screwed into the screw hole of each sleeve 311 to abut against the sliding rod 131 and limit the movement of the sleeve 311. After the lower pressure block 32 presses against the rear axle, the locking bolt 312 is tightened, thereby preventing the rear axle from pushing the top frame 31 to move due to the force applied to the lower pressure block 32 under bumpy road conditions, thus failing to play a limiting role.

[0033] In this embodiment, the top frame 31 includes a first part 31a connected to one side of the slide rod 131 via a sleeve 311, a second part 31b connected to the other side of the slide rod 131 via a sleeve 311, and a third part 31c hinged to the first part 31a on one side and detachably connected to the second part 31b on the other side. The first part 31a includes two first transverse rods 313 and a first longitudinal rod 314. One end of the two first transverse rods 313 is welded to two sleeves 311 located on the same side, and both ends of the first longitudinal rod 314 are welded to the ends of the two first longitudinal rods 314 away from the sleeves 311. The second part 31b includes two second transverse rods 315 and a second longitudinal rod 316. One end of the two second transverse rods 315 is welded to two other sleeves 311 located on the same side, and both ends of the second longitudinal rod 316 are welded to the ends of the two second longitudinal rods 316 away from the sleeves 311 they are located in. The third part 31c includes two third transverse rods 317 and two third longitudinal rods. The ends of the two third transverse rods 317 near the second part 31b are hinged to the ends of the two second transverse rods 315 away from the sleeve 311. The other ends of the two third transverse rods 317 are detachably connected to the ends of the two first transverse rods 313 away from the sleeve 311. The two ends of the two third longitudinal rods are welded to the two third transverse rods 317 to increase structural strength. Thus, the third part 31c can rotate upwards relative to the second part 31b. The lowering block 32 is fixedly connected to the bottom of the two third longitudinal rods of the third part 31c and is located directly above the two support plates 213, for pressing down on the rear axle on the limiting block 22. The third part 31c has an overlapping end 318 at one end near the first part 31a, which overlaps the second part 31b from top to bottom. The bottom of the overlapping end 318 has a lower L-shaped notch, and the top of the end of the first transverse rod 313 has an upper L-shaped notch that overlaps with the lower L-shaped notch, so that the overlapping of the upper L-shaped notch and the lower L-shaped notch of the third part 31c supports the first part 31a. The overlapping end 318 is provided with a second locking member 319 for locking. The second locking member 319 includes a screw hole opened on the overlapping end 318 and communicating with the upper L-shaped notch. The second locking member 319 includes a second bolt. A screw hole is also opened on the lower L-shaped notch. After the third part 31c overlaps the first part 31a, it is connected and locked by the second bolt. The lower pressure block 32 is pressed against the rear axle by the sliding top bracket 31 to complete the fixation of the rear axle. When it is necessary to remove or place the rear axle, the third part 31c can be flipped upwards by loosening the second bolt, so as to reduce the obstruction of the top frame 31 and facilitate the movement of the rear axle.

[0034] In this embodiment, the lower pressure block 32 includes a sleeve 321 fixedly sleeved on the third longitudinal rod and a pressure strip 322 fixedly connected below the sleeve 321. The pressure strip 322 is also made of an elastic material such as rubber to ensure that the rear axle can be compressed while reducing damage to the rear axle. The two pressure strips 322 are directly opposite the two support plates 213 and directly opposite the limiting block 22 on the support plate 213. Therefore, there is a clearance space between the two pressure strips 322 corresponding to the placement space 23.

[0035] The working method of one embodiment of the new energy vehicle rear axle logistics transfer frame of this utility model is as follows: When in use, after loosening the second bolt to rotate away from the third part 31c, the rear axle hub or hub axle tube is inserted into the limiting groove 221. After sliding the position of the limiting block 22 as needed, the locking bolt 312 is loosened, the top frame 31 is slid until the lower pressure block 32 presses against the top of the rear axle, and then the locking bolt 312 is tightened. The rear axle can be transferred by pushing and pulling the side frame 13. The upper pressure block restricts the vertical movement of the rear axle, the limiting block 22 restricts the longitudinal movement, and the placement space 23 restricts the lateral movement, thus achieving all-round restriction.

Claims

1. A new energy vehicle rear axle logistics transfer frame, comprising a chassis provided with universal wheels at the bottom, characterized in that: The bottom frame is provided with a lower limiting part for supporting and limiting the rear axle from the bottom, and the lower limiting part has a placing space for the half shell part of the rear axle to be suspended; the bottom frame is provided with an upper limiting part for pressing down the rear axle above the lower limiting part.

2. The new energy vehicle rear axle logistics transfer frame according to claim 1, characterized in that: The bottom frame comprises a bottom plate, and the universal wheels are arranged at four corners of the bottom plate; the lower limiting part comprises a support which is protruded upward from the bottom plate and a limiting block arranged on the top of the support, and a limiting groove for clamping the bottom of the rear axle is recessed in the limiting block.

3. The new energy vehicle rear axle logistics transfer frame according to claim 2, characterized in that: The limiting blocks are arranged in a rectangular array, and each limiting groove in each limiting block is opened along a transverse direction; the placing space is formed on the support between the limiting blocks.

4. The new energy vehicle rear axle logistics transfer frame according to claim 3, characterized in that: The support has support plates on both sides of the placing space along the transverse direction, and two limiting blocks are arranged on one support plate in a longitudinally adjustable interval, and the other two limiting blocks are arranged on the other support plate in a longitudinally adjustable interval.

5. The new energy vehicle rear axle logistics transfer frame according to claim 4, characterized in that: Each limiting block is arranged on the support plate in a longitudinal sliding manner and is locked by a first locking member.

6. The new energy vehicle rear axle logistics transfer frame according to any one of claims 2 to 5, characterized in that: The limiting block is made of an elastic material.

7. The new energy vehicle rear axle logistics transfer frame according to claim 2, characterized in that: The bottom frame further comprises side frames arranged on both sides of the bottom plate; the upper limiting part comprises a top frame and a pressing block arranged on the top frame, and the two ends of the top frame are movably connected to the side frames so that the top frame can move up and down, and the pressing block is arranged opposite to each lower limiting part.

8. The new energy vehicle rear axle logistics transfer frame according to claim 7, characterized in that: Sliding rods are arranged on the two side frames in a vertical direction, and the two ends of the top frame have sleeves which are sleeved on the sliding rods, and first locking bolts are screwed on the sleeves to abut against the sliding rods to limit the movement of the sleeves.

9. The new energy vehicle rear axle logistics transfer frame according to claim 8, characterized in that: The top frame comprises a first part connected to one side of the sliding rod through the sleeve, a second part connected to the other side of the sliding rod through the sleeve, and a third part hingedly connected to the first part on one side and detachably connected to the second part on the other side, and the pressing block is fixedly connected to the bottom of the third part.

10. The new energy vehicle rear axle logistics transfer frame according to claim 9, characterized in that: The third part has a lap joint end which is lap jointed on the second part from top to bottom, and a second locking member is arranged on the lap joint end for locking.

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