CN220842181U - Battery box fixing device and engineering machinery - Google Patents

Abstract

The utility model belongs to the technical field of engineering machinery, and discloses a battery box fixing device and engineering machinery. The battery box fixing device comprises a power exchange base, wherein the power exchange base comprises a supporting plate, a limiting structure and a damping structure. The layer board passes through limit structure and shock-absorbing structure to be connected on engineering machine tool frame's mounting panel, at least part shock-absorbing structure is located between layer board and the mounting panel, vibration between layer board and the mounting panel can be buffered, and limit structure makes the layer board have the activity level of predetermineeing for the mounting panel along vertical direction, when engineering machine tool produced great vibration, the activity level of predetermineeing can compensate the vibration of mounting panel, avoid layer board and mounting panel hard contact, the vibration of mounting panel can not transmit to the battery box and cause the damage to the battery box, further avoid the battery box impaired, this kind of battery box fixing device can ensure the stability of battery box in the use, ensure the safety in utilization of battery.

Description

Battery box fixing device and engineering machinery

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a battery box fixing device and engineering machinery.

Background

Along with the rapid development and popularization of electric automobiles, the engineering machinery has a trend of electric engineering machinery, and the main problems of the existing electric engineering machinery are large power consumption and long charging time, so that the experience of customers is seriously affected, the electric engineering machinery is limited in vehicle body accommodating space and high in power battery price, more batteries cannot be loaded on the engineering machinery, and the operation duration can be seriously extruded by frequent long-time charging.

In the heavy truck field, the power conversion becomes one of the main energy supplementing modes of the electric heavy truck, the efficient energy supplementing mode improves the operation efficiency, the approval of users is won, the market sales volume is improved, and a solution is provided for engineering machinery dynamization. But trade electric heavy truck belongs to road vehicle, and the operating mode is good, has the tire moreover, hangs multistage shock attenuation, and heavy truck's battery fixing device does not have special shock attenuation usually, but engineering machine tool operating mode is abominable, and impact vibration is big, and heavy truck's battery box and battery box fixing device can not directly be applied to engineering machine tool, adopts new battery box to increase manufacturing cost, adopts heavy truck's battery box fixing device can lead to the battery box to install unstably on engineering machine tool, can influence engineering machine tool battery box's life and high-voltage electricity safety even.

Therefore, a battery case fixing device and a construction machine are needed to solve the above problems.

Disclosure of utility model

The utility model aims to provide a battery box fixing device and engineering machinery, which can enable a battery box of a heavy truck to be suitable for the engineering machinery, can ensure the adaptation of the battery box and the engineering machinery, reduce the production cost, can improve the installation stability of the battery box, and ensures the service life and the use safety.

To achieve the purpose, the utility model adopts the following technical scheme:

The battery box fixing device, battery box fixing device is with battery box fixed mounting in engineering machine tool's frame, the frame includes the mounting panel, battery box fixing device includes:

The power conversion collet comprises a supporting plate, a limiting structure and a damping structure, wherein the limiting structure and the damping structure are both used for connecting the mounting plate with the supporting plate, at least part of the damping structure is located in a gap between the supporting plate and the mounting plate and used for buffering vibration between the supporting plate and the mounting plate, and the limiting structure is configured to enable the supporting plate to have a preset activity amount relative to the mounting plate along the vertical direction.

As an optional technical scheme, limit structure includes four at least groups of limit components, and wherein four of them in all limit components are close to respectively four turning settings of layer board, limit component includes a locating part at least, the locating part includes connecting bolt and locknut, seted up first through-hole on the layer board, set up the second through-hole on the mounting panel, connecting bolt pass in proper order first through-hole the second through-hole back with locknut threaded connection, in order will the layer board with the mounting panel is connected, just locknut with the mounting panel interval sets up.

As an optional technical scheme, the limiting part further comprises a first cushion block and a second cushion block, the first cushion block and the second cushion block are all arranged on the connecting bolt in a penetrating mode, the first cushion block is located between a nut of the connecting bolt and the supporting plate, the second cushion block is located between the locknut and the mounting plate, and the second cushion block is arranged at intervals with the mounting plate.

As an optional technical scheme, the limiting piece further comprises two gaskets, the two gaskets are all arranged on the connecting bolt in a penetrating mode, one gasket is located between the first cushion block and the supporting plate, the other gasket is located between the second cushion block and the mounting plate, and the gasket located between the second cushion block and the mounting plate is arranged at intervals with the mounting plate.

As an optional technical scheme, the shock-absorbing structure includes damper, the layer board is provided with along the both sides of the length direction of battery box damper.

As an optional technical scheme, the damper assembly includes a plurality of damper, and is a plurality of the damper is followed the length direction equidistant setting of layer board, the damper includes mounting and shock absorber, the mounting is used for with the shock absorber connect in layer board with the mounting panel, and at least part the shock absorber is located the layer board with between the mounting panel, so that layer board with mounting panel elastic connection.

As an optional technical scheme, the shock absorber is provided with two clamping portions, a clamping groove is formed between the two clamping portions, the supporting plate is provided with a third through hole, and the side wall of the third through hole is accommodated in the clamping groove, so that the two clamping portions are respectively located on two sides of the supporting plate.

As an optional technical solution, the battery box fixing device further includes a supporting structure, where the supporting structure is supported on at least one side of the battery box and is used for preventing the battery box from toppling over.

As an optional technical solution, the supporting structure includes at least two supporting components, and the at least two supporting components are arranged at intervals along the extending direction of the battery box body; the support assembly comprises a first mounting seat, a second mounting seat and a support rod, wherein the first mounting seat is fixedly arranged on the battery box body, the second mounting seat is fixedly arranged on the frame, and two ends of the support rod are respectively and rotatably arranged on the first mounting seat and the second mounting seat.

The utility model adopts the following technical scheme:

The engineering machine comprises a frame and a battery box body, wherein the battery box body fixing device is further arranged on the engineering machine, the frame comprises a mounting plate, the battery box body fixing device is arranged above the mounting plate, and the battery box body is arranged on the battery box body fixing device.

The utility model has the beneficial effects that:

The utility model discloses a battery box fixing device which comprises a battery changing base, wherein the battery changing base comprises a supporting plate, a limiting structure and a damping structure, at least part of the damping structure is positioned in a gap between the supporting plate and a mounting plate and used for buffering vibration between the supporting plate and the mounting plate, and the limiting structure is configured to enable the supporting plate to have a preset activity amount relative to the mounting plate along the vertical direction. The supporting plate is connected to the mounting plate of the engineering machinery frame through the limiting structure and the damping structure, the damping structure is connected between the supporting plate and the mounting plate, and at least part of the damping structure is positioned between the supporting plate and the mounting plate, so that vibration between the supporting plate and the mounting plate can be buffered; and limit structure makes the layer board have the activity that presets for the mounting panel along vertical direction, when engineering machine tool produced great vibration, the vibration of mounting panel can be compensated to the activity that presets, avoids layer board and mounting panel hard contact, and the vibration of mounting panel can not transmit to the battery box and cause the damage to the battery box, further avoids the battery box impaired, and this kind of battery box fixing device can ensure the stability of battery box in the use, ensures the safety in utilization of battery.

The utility model also discloses engineering machinery, which comprises a frame and a battery box body, wherein the engineering machinery further comprises the battery box body fixing device, the frame comprises a mounting plate, the battery box body fixing device is arranged above the mounting plate, and the battery box body is arranged on the battery box body fixing device. The engineering machinery can quickly change electricity, and meets the operation duration use requirement; and the battery box body is stable to install, has long service life and can ensure the electricity safety in the use process.

Drawings

FIG. 1 is a schematic view of a part of construction of a construction machine according to an embodiment of the present utility model;

FIG. 2 is a schematic illustration of the connection of the present utility model to the battery exchange base, frame and battery box;

FIG. 3 is an enlarged view of a portion of FIG. 2A;

FIG. 4 is an exploded view of FIG. 2;

FIG. 5 is a partial cross-sectional view of a power conversion shoe and frame of an embodiment of the present utility model;

FIG. 6 is an enlarged view of a portion of B in FIG. 5;

FIG. 7 is an enlarged view of a portion of C in FIG. 5;

FIG. 8 is a schematic view of a shock absorbing member according to an embodiment of the present utility model;

Fig. 9 is a schematic diagram showing the connection of the support rod, the pin shaft and the cotter pin according to the embodiment of the present utility model.

In the figure:

2. A frame; 201. a mounting plate; 3. a battery case;

10. A power-exchanging bottom bracket; 11. a supporting plate; 12. a limiting piece; 121. a connecting bolt; 122. a locknut; 123. a first pad; 124. a second cushion block; 125. a gasket; 13. a shock absorbing member; 131. a fixing member; 1311. a fixing bolt; 1312. a nut; 1313. a locking gasket; 132. a shock absorber; 1321. a clamping part; 1322. a clamping groove; 14. a first guide; 141. a first guiding inclined surface; 15. a guide cylinder; 16. a quick-insertion structure; 17. a locking structure;

21. A support assembly; 211. a first mount; 212. a second mounting base; 213. a support rod; 2131. a connection hole; 214. a pin shaft; 2141. a pin hole; 215. and (5) a cotter pin.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1 to 4, in this embodiment, a battery box fixing device is provided, in which a battery box 3 is fixedly mounted on a frame 2 of an engineering machine, the frame 2 includes a mounting plate 201, the battery box fixing device includes a power exchanging base 10, the power exchanging base 10 includes a supporting plate 11, a limiting structure and a damping structure, both of which are used for connecting the mounting plate 201 and the supporting plate 11, at least part of the damping structure is located in a gap between the buffering supporting plate 11 and the mounting plate 201 for buffering vibration between the supporting plate 11 and the mounting plate 201, and the limiting structure is configured such that the supporting plate 11 has a preset activity amount relative to the mounting plate 201 in a vertical direction. Specifically, in this embodiment, the supporting plate 11 is connected with the mounting plate 201 through the limiting structure and the damping structure, when the engineering machine is in actual use, the vibration of the frame 2 is transmitted to the mounting plate 201, the mounting plate 201 is connected with the supporting plate 11 through the damping structure, and the damping structure can play a role in buffering, so that the vibration of the frame 2 is not transmitted to the battery box 3 above the supporting plate 11 or the vibration of the frame 2 is transmitted to the battery box 3 after being attenuated, the effect of reducing the vibration of the battery box 3 can be achieved, and the use safety and the service life of the battery box 3 are ensured; the limit structure makes the layer board 11 have the activity of predetermineeing for mounting panel 201 along vertical direction, and when engineering machine tool's vibration was great, the vibration of mounting panel 201 can be compensated to the activity of predetermineeing, avoids layer board 11 and mounting panel 201 hard contact, and then makes the vibration of mounting panel 201 further attenuate, avoids causing the damage to battery box 3.

Preferably, in this embodiment, the battery replacement shoe 10 further includes a guiding component, a locking structure 17 and a quick-insertion structure 16, the guiding component is used for guiding the battery box 3 during installation, the locking structure 17 is used for locking the battery box 3 to the battery replacement shoe 10, and the quick-insertion structure 16 is used for being inserted into a battery interface of the battery box. Specifically, in this embodiment, the guiding assembly includes a first guiding structure and a second guiding structure, both of which are used for guiding in the installation process of the battery box 3, the first guiding structure is higher than the second guiding structure, the first guiding structure includes a plurality of first guiding pieces 14 disposed on the supporting plate 11, the first guiding pieces 14 in this embodiment are provided with 4, and are respectively disposed in four corner directions of the supporting plate 11, and a first guiding inclined plane 141 is provided at the top of the first guiding piece 14 for performing first-stage guiding; the second guiding structure is a guiding cylinder 15, and four guiding cylinders 15 are arranged at four corners of the quick-inserting structure 16 and used for ensuring accurate butt joint of the quick-inserting structure 16 and the battery box 3 and ensuring a conductive effect, and the two-stage guiding structure is used for carrying out secondary guiding on the battery box 3, so that the position is accurate when the battery box 3 is mounted to the battery replacement collet 10, the quick-inserting structure 16 can be accurately butted with a battery interface of the battery box, and normal realization of functions of the battery box 3 is ensured; the locking structure 17 can ensure that the battery box 3 is locked on the battery replacement collet 10, so that the battery box 3 cannot be separated from the battery replacement collet 10 due to vibration in the use process of the engineering machinery, and the normal power consumption of the engineering machinery, the installation stability and the use safety of the battery box 3 are ensured.

In the actual power change process, firstly separating the battery box body 3 to be replaced from the power change base 10, opening the locking structure 17 to unlock the battery box body 3 during separation, then hoisting the battery box body 3 by using a hoisting tool, separating the battery box body 3 from the second guide structure and the first guide structure in sequence during hoisting, and then placing the battery box body 3 on the ground or other bearing devices to finish the disassembly of the old battery box body 3; then use lifting means to lift up new battery box 3 to remove it to the top of trading the electricity collet 10, rethread control lifting means descends battery box 3 gradually, in the in-process of putting down, first direction inclined plane 141 of first guide 14 gradually with battery box 3 go on contact with the structure that corresponds with first direction inclined plane 141, and then carry out preliminary direction to battery box 3, along with battery box 3's gradual decline, guide cylinder 15 carries out the cooperation of pegging graft with the jack that battery box 3 corresponds, carry out the secondary location to battery box 3, ensure battery box 3 mounted position's accuracy, quick interface 16 pegging graft with battery box 3's battery interface, until battery box 3 is placed on trading the electricity collet 10 completely under the effect of gravity, lock locking structure 17 finally, make battery box 3 lock in trading the electricity collet 10, avoid leading to battery box 3 and trading the separation of electricity collet 10 owing to rocking the external world, ensure the stability and the security of battery box 3 in engineering machine tool use.

Alternatively, the locking structure 17 is a telescopic locking device commonly used in the art, and the detailed structure thereof will not be described here in detail.

Further, the limiting structure includes at least four sets of limiting components, four of which are disposed near four corners of the pallet 11 and the mounting plate 201, respectively. Specifically, in this embodiment, the limiting components are disposed at four corners of the supporting plate 11 and the mounting plate 201, so that the distance between the four groups of limiting components is larger, and the limiting components can bear vertical vibration as large as possible, so that the limiting components are more suitable for the working conditions of engineering machinery.

In other embodiments, the limit structure includes the limit assembly group number can carry out specific setting according to the in-service use, for example when layer board 11 length is longer, can add one or more limit assembly at layer board 11's middle part, can further promote the spacing effect between layer board 11 and the mounting panel 201, avoid appearing layer board 11 middle part's vibration too big, lead to battery box 3 to install unstable condition, promote battery box fixing device's commonality and flexibility.

Further, as shown in fig. 5 and 6, the limiting component at least includes a limiting member 12, the limiting member 12 includes a connecting bolt 121 and a locknut 122, a first through hole is formed on the supporting plate 11, a second through hole is formed on the mounting plate 201, and the connecting bolt 121 sequentially passes through the first through hole and the second through hole and then is in threaded connection with the locknut 122, so as to connect the supporting plate 11 with the mounting plate 201, and the locknut 122 is arranged at intervals with the mounting plate 201. Specifically, in this embodiment, spacing subassembly includes a locating part 12, adopts connecting bolt 121 and locknut 122 to be connected layer board 11 and mounting panel 201, can make the dismouting of layer board 11 and mounting panel 201 comparatively convenient, and adopts locknut 122 can enough guarantee that the clearance between locknut 122 and the mounting panel 201 remains unchanged and is convenient for adjust all the time, can ensure the stability of battery box 3 installation again, avoids locknut 122 pine to take off, leads to spacing inefficacy of spacing subassembly.

Alternatively, in other embodiments, the number of the limiting members 12 included in the limiting assembly may be specifically set according to actual use, for example: 2, 3, or even more, are not described in detail herein.

Alternatively, in other embodiments, the mounting plate 201 and the supporting plate 11 may be connected by using a stepped shaft and a cotter pin 215, which has the advantage of being more convenient to assemble and disassemble, but has the disadvantage of inconvenient gap adjustment, and is suitable for the occasion of fixing the gap, which is not described herein.

Further, the limiting member 12 further includes a first spacer 123 and a second spacer 124, the first spacer 123 and the second spacer 124 are both disposed through the connecting bolt 121, the first spacer 123 is disposed between the nut of the connecting bolt 121 and the supporting plate 11, the second spacer 124 is disposed between the locknut 122 and the mounting plate 201, and the second spacer 124 is disposed at intervals with the mounting plate 201. Specifically, in this embodiment, the locknut 122 can make the dismouting of first cushion 123 and second cushion 124 comparatively convenient, and because second cushion 124 sets up for the interval with mounting panel 201, can make to have suitable clearance between layer board 11 and the mounting panel 201, first cushion 123 is located between the nut of connecting bolt 121 and layer board 11, can avoid the nut of connecting bolt 121 and layer board 11 hard contact, second cushion 124 is located between locknut 122 and mounting panel 201, can avoid locknut 122 and mounting panel 201 hard contact, when engineering machine tool vibrates, can avoid the mutual collision between locknut 122 and the mounting panel 201 as far as possible, can ensure safe in utilization, can avoid producing too big noise again.

Further, the limiting member 12 further includes two spacers 125, the two spacers 125 are all disposed through the connecting bolt 121, one spacer 125 is located between the first cushion block 123 and the supporting plate 11, the other spacer 125 is located between the second cushion block 124 and the mounting plate 201, and the spacers 125 located between the second cushion block 124 and the mounting plate 201 are disposed at intervals with the mounting plate 201. In particular, in the present embodiment, the gasket 125 is provided to further resist impact, further protect the battery case 3 and reduce noise.

Optionally, in this embodiment, the gasket 125 is an engineering plastic gasket, which has low cost, high strength, long service life, good damping effect, and low production cost.

Further, as shown in fig. 5 and 8, the shock absorbing structure includes shock absorbing members provided to both sides of the pallet 11 in the length direction of the pallet 11. Specifically, in this embodiment, the damping structure includes two sets of damping components, and the two sets of damping components are respectively disposed on two sides of the supporting plate 11 along the length direction of the supporting plate 11. This arrangement not only enables a better support of the pallet 11, but also has a better damping effect and also has the advantage of lower costs.

Optionally, in other embodiments, depending on the actual use, the three sides or four sides of the supporting board 11 are provided with damping components, so as to further improve the damping effect.

Further, the damping assembly includes a plurality of damping members 13, the plurality of damping members 13 are disposed at equal intervals along the length direction of the supporting plate 11, the damping members 13 include fixing members 131 and damping bodies 132, the fixing members 131 are used for connecting the damping bodies 132 to the supporting plate 11 and the mounting plate 201, and at least part of the damping bodies 132 are located between the supporting plate 11 and the mounting plate 201, so that the supporting plate 11 is elastically connected with the mounting plate 201. Specifically, in this embodiment, the shock absorbing members 13 disposed at two sides of the supporting plate 11 are symmetrically disposed, and the plurality of shock absorbing members 13 disposed at one side of the supporting plate 11 are disposed at equal intervals, which is capable of facilitating the promotion of the shock absorbing effect of the shock absorbing structure, so that the vibration received by each shock absorbing member 13 is substantially the same, and facilitating the promotion of the stability of the whole power conversion base 10. In this embodiment, the fixing member 131 is a fixing bolt 1311 and a nut 1312, a fourth through hole is formed in the supporting plate 11, a fifth through hole is formed in the mounting plate 201, and the fixing bolt 1311 sequentially passes through the fourth through hole and the fifth through hole and is in threaded connection with the nut 1312, so that the convenience in assembly and disassembly can be ensured, and the mounting stability of the shock absorber 132 can be ensured.

Preferably, in order to improve the installation stability, a locking washer 1313 is disposed between the installation plate 201 and the nut 1312, so as to prevent the nut 1312 and the fixing bolt 1311 from loosening, and the battery box 3 can be more suitable for multiple vibration working conditions of engineering machinery, and further ensure the installation stability of the battery box 3.

Further, the shock absorber 132 is provided with two clamping portions 1321, a clamping groove 1322 is formed between the two clamping portions 1321, the supporting plate 11 is provided with a third through hole, and a sidewall of the third through hole is accommodated in the clamping groove 1322, so that the two clamping portions 1321 are respectively located at two sides of the supporting plate 11. Specifically, in this embodiment, the shock absorber 132 is a rubber member, the rubber member includes two clamping portions 1321, and a clamping groove 1322 is formed between the two clamping portions 1321, and this kind of arrangement can promote the stability of installation, effectively prevents the position deviation of the rubber member, ensures the shock absorbing effect.

Specifically, in this embodiment, the shock absorber 132 is a split structure, including a first shock absorber 132 and a second shock absorber 132, the first shock absorber 132 includes rubber members with different diameters at two ends of the connection, and the first shock absorber 132 is hollow, and the second shock absorber 132 is an annular rubber member. During installation, the fixing bolt 1311 passes through the middle hole of the first shock absorber 132 and then passes through the fourth through hole, meanwhile, the small-diameter section of the first shock absorber 132 is inserted into the fourth through hole, then the second shock absorber 132 passes through the fixing bolt 1311, and then the fixing bolt 1311 passes through the fifth through hole and then is in threaded connection with the nut 1312.

Optionally, in other embodiments, the shock absorber 132 is integrally provided, and when in actual installation, after one of the clamping portions 1321 needs to be pushed through the fourth through hole, the two clamping portions 1321 of the shock absorber 132 are respectively located at two sides of the supporting plate 11, which can also satisfy the requirement of use, and the specific structure is not repeated herein.

Alternatively, in another embodiment, the shock absorbing member may also be a silicone shock absorbing pad assembly, which is a prior art and will not be described in detail herein.

Further, as shown in fig. 1, the battery case fixing device further includes a support structure supported on at least one side of the battery case 3 for preventing the battery case 3 from falling down. Specifically, in this embodiment, bearing structure supports between battery box 3 and frame 2, and bearing structure is located engineering machine tool direction of advance's rear side, can provide certain support to battery box 3, avoids because the battery box 3 of heavy truck is higher to lead to toppling over of battery box 3, can ensure the installation stability of battery box 3, and then ensures battery box 3's life and safety in utilization.

Optionally, in other embodiments, the front and rear sides, the left side or the right side of the battery box 3, or the periphery of the battery box 3 is provided with a supporting structure, so that the installation stability of the battery box 3 can be further improved, which is not described herein.

Further, referring to fig. 1 and 9, the support structure includes at least two support assemblies 21, and the at least two support assemblies 21 are spaced apart along the extending direction of the battery case 3; the support assembly 21 comprises a first mounting seat 211, a second mounting seat 212 and a support rod 213, wherein the first mounting seat 211 is fixedly arranged on the battery box body 3, the second mounting seat 212 is fixedly arranged on the frame 2, and two ends of the support rod 213 are respectively rotatably arranged on the first mounting seat 211 and the second mounting seat 212. Specifically, in this embodiment, two support assemblies 21 are provided, and two support assemblies 21 are disposed at intervals, so as to provide support for the battery box 3, and ensure the safety of the battery box 3 in use. The first mounting seat 211 and the second mounting seat 212 are respectively provided with two lugs, mounting holes are formed in the two lugs, a connecting hole 2131 is formed in the supporting rod 213, a pin hole 2141 is formed in the pin shaft 214, and after the pin shaft 214 sequentially passes through the mounting hole in one lug, the connecting hole 2131 and the mounting hole in the other lug, the cotter pin 215 passes through the pin hole 2141, so that two ends of the supporting rod 213 are rotatably arranged on the first mounting seat 211 and the second mounting seat 212. This kind of setting makes battery box 3 when rocking, and bracing piece 213 can provide pulling force and holding power to battery box 3, prevents that battery box 3 from appearing empting when receiving external vibration, ensures the safety of battery box 3 in the use.

Alternatively, in other embodiments, the number of support assemblies 21 included in the support structure may be specifically set according to actual use, for example: 3, 4, or even more, and are not described in detail herein.

Preferably, the two ends of the supporting rod 213 in this embodiment are provided with an outer steel sleeve and an inner steel sleeve, and an elastic element is further arranged between the outer steel sleeve and the inner cylinder sleeve, so that the elasticity of the supporting rod is further improved, the stability of the battery box 3 can be further improved, and the use safety of the battery box 3 is ensured, which is not described in detail herein.

As shown in fig. 1, the present embodiment further provides a construction machine, which includes a frame 2 and a battery box 3, the construction machine further includes a battery box fixing device as described above, the frame 2 includes a mounting plate 201, the battery box fixing device is disposed above the mounting plate 201, and the battery box 3 is mounted on the battery box fixing device. The engineering machinery can quickly change electricity, and meets the operation duration use requirement; and the battery box body 3 is stable to install, has long service life and can ensure the electricity safety in the use process.

Alternatively, the engineering machine in this embodiment may be an excavator or a loader, which will not be described here.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. Battery box fixing device, battery box (3) fixed mounting is in frame (2) of engineering machine tool to battery box fixing device, frame (2) include mounting panel (201), its characterized in that, battery box fixing device includes:

Trade electric collet (10), trade electric collet (10) include layer board (11), limit structure and shock-absorbing structure, limit structure with shock-absorbing structure all is used for connecting mounting panel (201) with layer board (11), at least part shock-absorbing structure is located the buffering layer board (11) with in the clearance between mounting panel (201), be used for the buffering layer board (11) with vibration between mounting panel (201), limit structure is configured so that layer board (11) have the activity of predetermineeing for mounting panel (201) along vertical direction.

2. The battery box body fixing device according to claim 1, wherein the limiting structure comprises at least four groups of limiting components, four groups of the limiting components are respectively close to four corners of the supporting plate (11), the limiting components at least comprise one limiting piece (12), the limiting piece (12) comprises a connecting bolt (121) and a locknut (122), a first through hole is formed in the supporting plate (11), a second through hole is formed in the mounting plate (201), and the connecting bolt (121) sequentially penetrates through the first through hole and the second through hole and then is in threaded connection with the locknut (122) so as to connect the supporting plate (11) with the mounting plate (201), and the locknut (122) is arranged at intervals with the mounting plate (201).

3. The battery box fixing device according to claim 2, wherein the limiting piece (12) further comprises a first cushion block (123) and a second cushion block (124), the first cushion block (123) and the second cushion block (124) are both arranged through the connecting bolt (121), the first cushion block (123) is located between a nut of the connecting bolt (121) and the supporting plate (11), the second cushion block (124) is located between the locknut (122) and the mounting plate (201), and the second cushion block (124) is arranged at intervals with the mounting plate (201).

4. A battery box fixing device according to claim 3, wherein the limiting member (12) further comprises two gaskets (125), the two gaskets (125) are both arranged through the connecting bolt (121), one gasket (125) is located between the first gasket (123) and the supporting plate (11), the other gasket (125) is located between the second gasket (124) and the mounting plate (201), and the gasket (125) located between the second gasket (124) and the mounting plate (201) is arranged at intervals with the mounting plate (201).

5. The battery box fixing device according to claim 1, characterized in that the shock absorbing structure comprises shock absorbing components, and the supporting plates (11) are provided with the shock absorbing components along two side edges of the length extending direction of the battery box (3).

6. The battery box fixing device according to claim 5, wherein the shock absorbing assembly comprises a plurality of shock absorbing members (13), the plurality of shock absorbing members (13) are arranged at equal intervals along the length direction of the supporting plate (11), the shock absorbing members (13) comprise fixing members (131) and shock absorbing bodies (132), the fixing members (131) are used for connecting the shock absorbing bodies (132) to the supporting plate (11) and the mounting plate (201), and at least part of the shock absorbing bodies (132) are located between the supporting plate (11) and the mounting plate (201) so that the supporting plate (11) is elastically connected with the mounting plate (201).

7. The battery box fixing device according to claim 6, wherein the shock absorbing body (132) is provided with two clamping portions (1321), a clamping groove (1322) is formed between the two clamping portions (1321), the supporting plate (11) is provided with a third through hole, and the side wall of the third through hole is accommodated in the clamping groove (1322) so that the two clamping portions (1321) are respectively located on two sides of the supporting plate (11).

8. Battery compartment securing device according to any of claims 1-7, characterized in that the battery compartment securing device further comprises a support structure supported on at least one side of the battery compartment (3) for preventing tilting of the battery compartment (3).

9. The battery box fixing device according to claim 8, characterized in that the support structure comprises at least two support assemblies (21), the at least two support assemblies (21) being arranged at intervals along the extension direction of the battery box (3); the support assembly (21) comprises a first mounting seat (211), a second mounting seat (212) and a support rod (213), wherein the first mounting seat (211) is fixedly arranged on the battery box body (3), the second mounting seat (212) is fixedly arranged on the frame (2), and two ends of the support rod (213) are respectively rotatably arranged on the first mounting seat (211) and the second mounting seat (212).

10. Engineering machinery comprising a frame (2) and a battery box (3), characterized in that the engineering machinery further comprises a battery box fixing device according to any one of claims 1-9, the frame (2) comprises a mounting plate (201), the battery box fixing device is arranged above the mounting plate (201), and the battery box (3) is mounted on the battery box fixing device.