CN217374130U - Mounting frame and frame connection structure of battery pack and engineering machinery vehicle - Google Patents
Mounting frame and frame connection structure of battery pack and engineering machinery vehicle Download PDFInfo
- Publication number
- CN217374130U CN217374130U CN202221316729.6U CN202221316729U CN217374130U CN 217374130 U CN217374130 U CN 217374130U CN 202221316729 U CN202221316729 U CN 202221316729U CN 217374130 U CN217374130 U CN 217374130U
- Authority
- CN
- China
- Prior art keywords
- frame
- mounting
- mounting frame
- piston rod
- battery pack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a connection structure and engineering machinery vehicle of installation frame and frame of battery package relates to engineering machinery vehicle technical field. The frame is provided with a first positioning structure, the mounting frame is provided with a second positioning structure, and the first positioning structure is matched with the second positioning structure so as to position the mounting frame and the frame; the connecting structure comprises a locking oil cylinder and a locking assembly, the locking oil cylinder comprises a cylinder body and a piston rod, and the piston rod is slidably arranged in the cylinder body; the cylinder body is fixed on the frame, the piston rod is connected with the locking assembly, the frame is provided with a guide groove, the mounting frame is provided with a limit groove, the piston rod extends and can drive the locking assembly to penetrate through the guide groove to be matched with the limit groove so as to lock the mounting frame and the frame; the piston rod retracts to drive the locking component to be disengaged from the limiting groove. The mounting frame of battery package and the connection structure of frame can realize the quick assembly disassembly of the mounting frame of battery package to in changing the battery package, reduced operating personnel's intensity of labour.
Description
Technical Field
The utility model relates to an engineering machine tool vehicle technical field especially relates to a connection structure and engineering machine tool vehicle of installation frame and frame of battery package.
Background
Carbon emission reduction and environmental protection are key factors for promoting energy conservation and emission reduction in the engineering machinery industry, and the development of the engineering machinery industry to electromotion is further accelerated under the background of carbon peak and carbon neutralization.
The electric engineering machinery has the advantages of environmental protection and performance, but the engineering machinery belongs to production tools, most of the engineering machinery belongs to continuous operation, and a customer has a problem of endurance anxiety to the electric engineering machinery; in order to solve the problem of client cruising anxiety, on one hand, the battery capacity is increased, but the scheme also increases the cost of the whole machine and the space requirement of the whole machine, so that the cost of purchasing the machine by the client is increased. Therefore, the battery replacement of the engineering machinery vehicle is an important factor for the rapid development of the electromotion of the engineering machinery, compared with the highway machinery such as an automobile and the like, the engineering machinery vehicle has the disadvantages of severe working environment and large vibration impact, and the current scheme of integrating a frame and a battery pack mounting frame (welding or bolt connection) is mostly adopted, but the scheme realizes replacement by replacing the battery pack or disassembling a mounting bolt, so that the field operation is very inconvenient, and the working strength of operators is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a connection structure and engineering machine tool vehicle of installation frame and frame of battery package can realize the quick assembly disassembly of the installation frame of battery package and frame, has reduced the change time of battery package, has reduced operating personnel's intensity of labour.
To achieve the purpose, the utility model adopts the following technical proposal:
a connection structure of an installation frame and a frame of a battery pack is provided, wherein a first positioning structure is arranged on the frame, a second positioning structure is arranged on the installation frame, and the first positioning structure is matched with the second positioning structure so as to position the installation frame on the frame;
the connecting structure comprises a locking oil cylinder and a locking assembly, the locking oil cylinder comprises a cylinder body and a piston rod, and the piston rod is slidably arranged in the cylinder body; the cylinder body is fixed on the frame, the piston rod is connected with the locking assembly, a guide groove is formed in the frame, a limiting groove is formed in the mounting frame, the piston rod extends to drive the locking assembly to penetrate through the guide groove to be matched with the limiting groove, and the mounting frame and the frame are locked; the piston rod retracts to drive the locking assembly to be disengaged from the limiting groove.
As an alternative of the connection structure of the mounting frame and the frame of the battery pack, the frame includes a mounting side plate and a mounting bottom plate which are perpendicular to each other, the first positioning structure is disposed on the mounting bottom plate, the guide groove is disposed on the mounting side plate, and the cylinder body is fixed to the mounting side plate;
the installation frame includes installation curb plate and the mounting plate that mutually perpendicular set up, second location structure set up in mounting plate is last, the spacing groove set up in on the installation curb plate.
As an alternative of the connection structure of the mounting frame and the frame of the battery pack, one of the first positioning structure and the second positioning structure is a positioning column, and the other one is a positioning hole;
the top of the positioning column is provided with a conical surface, the bottom of the positioning hole is provided with a conical hole, and the conical surface is matched with the conical hole.
As an alternative to the connection structure of the mounting frame of the battery pack to the vehicle frame, the guide groove is used for guiding the locking assembly to move in a direction parallel to the assembly base plate;
the limiting groove comprises a first inclined surface, the locking assembly comprises a second inclined surface, and the first inclined surface is in butt fit with the second inclined surface and used for limiting the locking assembly to move in the direction parallel to the assembling bottom plate.
As an alternative of the connection structure between the mounting frame and the frame of the battery pack, the limiting groove further comprises a first opposite surface arranged opposite to the first inclined surface, the locking assembly further comprises a second opposite surface arranged opposite to the second inclined surface, and after the first inclined surface is in butt fit with the second inclined surface, a gap is reserved between the first opposite surface and the second opposite surface.
As an alternative of the connection structure of the mounting frame and the frame of the battery pack, the locking cylinder further comprises an elastic member, and the elastic member is disposed in the rodless cavity of the cylinder body.
As an alternative of the connection structure of the mounting frame and the frame of the battery pack, the locking assembly comprises a locking wedge block, the locking wedge block is connected with the piston rod, and the piston rod extends to drive the locking wedge block to penetrate through the guide groove to be matched with the limiting groove; and the piston rod retracts to drive the locking wedge block to be disengaged from the limiting groove.
As an alternative of the connection structure of the mounting frame and the frame of the battery pack, the frame is provided with a guide block, the guide groove is formed in the guide block, and the cylinder body is fixedly connected with one end, far away from the mounting frame, of the guide block.
As an alternative of the connection structure between the mounting frame and the frame of the battery pack, the locking assembly comprises a rocker arm, the rocker arm is rotatably connected with the frame through a first pin shaft, one end of the rocker arm is rotatably connected with the piston rod through a second pin shaft, the piston rod extends, and the other end of the rocker arm can penetrate through the guide groove to be matched with the limiting groove; the piston rod retracts, and the other end of the rocker arm can be disengaged from the limiting groove.
As an alternative of the connection structure of the mounting frame and the frame of the battery pack, the frame is provided with a first support frame and a second support frame, and the cylinder body is connected with the first support frame through a third pin shaft; the rocker arm is connected with the second support frame through the first pin shaft.
The utility model provides an engineering machinery vehicle, includes oil tank, battery package, installation frame and frame, the battery package install in the installation frame, the installation frame with the frame is through above arbitrary scheme the connection structure of the installation frame of battery package and frame fixed, the oil tank does the locking hydro-cylinder provides the drive fluid.
The utility model has the advantages that:
the utility model provides a connection structure of installation frame and frame of battery package through the cooperation of first location structure and second location structure, realizes the location of installation frame and frame. Through the extension of the piston rod of the control locking oil cylinder, the locking assembly can be driven to penetrate through the guide groove to be matched with the limiting groove, so that the mounting frame is locked with the frame. The piston rod of the locking oil cylinder is controlled to retract, so that the locking assembly can be driven to be disengaged from the limiting groove, the mounting frame and the frame are unlocked, the mounting and dismounting of the mounting frame of the battery pack are realized, the battery pack is convenient to replace, the replacement time of the battery pack is shortened, and the labor intensity of operators is reduced.
The utility model provides an engineering machinery vehicle, the connection structure of the installation frame of using foretell battery package and frame is with installation frame and connected to the frame, and the oil tank through engineering machinery vehicle provides drive fluid, easy operation for the locking hydro-cylinder. Compared with the connecting structure in the prior art, the fixing, unscrewing and other work of the connecting bolt in the process of mounting and dismounting the mounting frame and the frame are avoided, the replacement time is greatly shortened, the labor intensity of operators is reduced, and the quick replacement of the battery pack can be realized.
Drawings
Fig. 1 is a schematic structural diagram of a connection structure between a mounting frame and a frame of a battery pack according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a vehicle frame according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a mounting frame according to an embodiment of the present invention;
fig. 4 is a partial schematic view of a mounting frame and a vehicle frame before positioning according to an embodiment of the present invention;
fig. 5 is a partial schematic view of a mounting frame and a vehicle frame after positioning according to an embodiment of the present invention;
fig. 6 is a schematic structural view of the locking wedge block and the limiting groove in cooperation locking according to the first embodiment of the present invention;
fig. 7 is a schematic structural view illustrating a locking wedge disengaged from a limiting groove according to a first embodiment of the present invention;
fig. 8 is a schematic structural diagram of a connection structure between a mounting frame and a frame of a battery pack according to a second embodiment of the present invention;
fig. 9 is a schematic structural view of a vehicle frame provided in the second embodiment of the present invention;
fig. 10 is a schematic structural diagram of a mounting frame according to a second embodiment of the present invention;
fig. 11 is a schematic view of an installation structure of a rocker arm on a vehicle frame according to a second embodiment of the present invention;
fig. 12 is a schematic structural view of the locking of the rocker arm and the limiting groove provided in the second embodiment of the present invention;
fig. 13 is a schematic structural view illustrating a structure in which the rocker arm provided by the second embodiment of the present invention is disengaged from the limiting groove.
In the figure:
1. a frame; 2. a mounting frame; 3. locking the oil cylinder; 5. a first pin shaft; 6. a second pin shaft; 7. a third pin shaft;
11. assembling the side plates; 12. assembling a bottom plate; 13. a vertical plate; 14. a transverse plate; 15. a reinforcing plate; 16. a rib plate; 17. a flange plate; 21. installing a side plate; 22. mounting a bottom plate; 23. a connecting plate; 24. bending a plate; 31. a cylinder body; 32. a piston rod; 33. an elastic member; 34. a connecting ring; 35. a U-shaped connecting frame; 41. locking a wedge block; 42. a rocker arm; 401. a second inclined surface; 402. a second opposing face;
111. a guide groove; 112. a first support frame; 113. a second support frame; 121. a positioning column; 211. a limiting groove; 221. positioning holes;
2111. a first inclined surface; 2112. a first opposing face.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example one
The embodiment provides an engineering machinery vehicle, including battery package, installation frame and frame, the battery package is installed in the installation frame, and installation frame and frame are fixed through the connection structure of the installation frame of battery package and frame.
The engineering machinery vehicle needs continuous operation, but the battery capacity of the battery pack is limited, and the battery pack needs to be replaced if the electric quantity of the battery pack is used up in the working process of the engineering machinery vehicle. The frame of engineering machinery vehicle among the prior art and the connected mode of the installation frame of battery package have two kinds, and the first kind is with installation frame and frame welding structure as an organic whole, when changing the battery, need change at the scene, but engineering machinery vehicle's operational environment is abominable, is difficult for the operation when changing the battery. The second is that the mounting frame is connected with the frame through bolts, and when the battery pack is replaced, the bolts for connecting the mounting frame with the frame need to be disassembled and assembled, so that the field operation is very difficult.
The engineering machinery vehicle that this embodiment provided, the connection structure of the installation frame of battery package and frame of use for connection structure among the prior art, avoided work such as fastening and the unscrewing of battery package change in-process bolt, the change time that has significantly reduced has reduced operating personnel's intensity of labour, can realize the quick replacement of battery package.
As shown in fig. 1 to 7, the embodiment provides a connection structure of a mounting frame and a frame of a battery pack, which is applied to the above engineering machinery vehicle, wherein a first positioning structure is arranged on the frame 1, a second positioning structure is arranged on the mounting frame 2, and the first positioning structure and the second positioning structure are matched to position the mounting frame 2 and the frame 1; the connecting structure comprises a locking oil cylinder 3 and a locking assembly, the locking oil cylinder 3 comprises a cylinder body 31 and a piston rod 32, and the piston rod 32 is slidably arranged in the cylinder body 31; the cylinder body 31 is fixed on the frame 1, the piston rod 32 is connected with the locking component, the frame 1 is provided with a guide groove 111, the mounting frame 2 is provided with a limit groove 211, the piston rod 32 extends to drive the locking component to penetrate through the guide groove 111 to be matched with the limit groove 211 so as to lock the mounting frame 2 and the frame 1; the piston rod 32 retracts to drive the locking assembly to disengage from the retaining groove 211.
Engineering machine tool vehicle includes the oil tank, and the oil tank provides drive fluid for locking hydro-cylinder 3, when installing installation frame 2 on frame 1, through hoist device such as crane or fork truck with installation frame 2 hoist and mount to the top of frame 1, with the cooperation of second location structure and first location structure, realizes the automatic positioning of installation frame 2 and frame 1. Then the oil tank supplies oil to the rodless cavity of the locking oil cylinder 3, the piston rod 32 extends to drive the locking component to penetrate through the guide groove 111 to be matched with the limiting groove 211, and the mounting frame 2 and the frame 1 can be locked.
When the battery pack needs to be replaced, the oil tank supplies oil to the rod cavity of the locking oil cylinder 3, and the piston rod 32 retracts to drive the locking assembly to be disengaged from the limiting groove 211. Then the installation frame 2 is hoisted by a hoisting device such as a crane or a forklift, and the installation frame 2 can be quickly separated from the frame 1.
The installation frame 2 and the frame 1 are positioned by matching the first positioning structure and the second positioning structure. By controlling the extension of the piston rod 32 of the locking cylinder 3, the locking assembly can be driven to pass through the guide groove 111 to be matched with the limiting groove 211 so as to lock the mounting frame 2 and the frame 1. Piston rod 32 through control locking hydro-cylinder 3 retracts, can drive locking Assembly and spacing groove 211 and break away from the cooperation to with installation frame 2 and the unblock of frame 1, realize the quick replacement of battery package, easy operation has reduced the change time of battery package, has reduced operating personnel's intensity of labour.
As an alternative to the connection structure of the mounting frame of the battery pack and the frame, the lock cylinder 3 further includes an elastic member 33, and the elastic member 33 is disposed in the rodless cavity of the cylinder body 31.
The elastic member 33 is a spring. When the oil tank supplies oil to the rod cavity of the locking oil cylinder 3, the elastic element 33 in the rodless cavity is compressed, and the piston rod 32 retracts under the pressure of the hydraulic oil. When the oil tank supplies oil to the rodless cavity of the locking cylinder 3, the piston rod 32 is extended under the combined action of the elastic restoring force of the elastic member 33 and the hydraulic oil. The elastic element 33 is arranged, so that when the locking oil cylinder 3 locks the mounting frame 2, the mounting frame 2 is locked through the combined action of the hydraulic oil and the elastic element 33, even if no hydraulic oil exists in the rod-free cavity, the piston rod 32 of the locking oil cylinder 3 can also realize the effective locking of the frame 1 and the mounting frame 2 under the action of the elastic force of the elastic element 33, and the safety is higher.
As an alternative of the connection structure of the mounting frame of the battery pack and the vehicle frame, the vehicle frame 1 includes a mounting side plate 11 and a mounting bottom plate 12 which are disposed perpendicular to each other, the first positioning structure is disposed on the mounting bottom plate 12, the guide groove 111 is disposed on the mounting side plate 11, and the cylinder block 31 is fixed to the mounting side plate 11. The mounting frame 2 includes a mounting side plate 21 and a mounting bottom plate 22 which are perpendicular to each other, the second positioning structure is disposed on the mounting bottom plate 22, and the limiting groove 211 is disposed on the mounting side plate 21.
The first positioning structure and the second positioning structure are matched, so that the freedom degrees of the mounting frame 2 and the frame 1 in four directions, namely front, back, left and right directions, can be limited. Through locking Assembly and spacing groove 211 cooperation, can restrict the degree of freedom of installation frame 2 and frame 1 in two directions from top to bottom to install frame 2 and frame 1 locking.
Of course, in other embodiments, the first positioning structure may also be disposed on the assembling side plate 11, and correspondingly, the second positioning structure is disposed on the mounting side plate 21, and the first positioning structure and the second positioning structure cooperate to limit the freedom of the mounting frame 2 and the frame 1 in four directions, namely, up, down, front and back; the guide groove 111 is arranged on the assembly bottom plate 12, the limiting groove 211 is arranged on the installation bottom plate 22, and the locking component penetrates through the guide groove 111 to be matched with the limiting groove 211 so as to limit the freedom degrees of the installation frame 2 and the frame 1 in the left direction and the right direction.
The assembly bottom plate 12 and the assembly side plate 11 can be integrated or split; similarly, the mounting bottom plate 22 and the mounting side plate 21 may be integrated or separated.
The frame 1 further comprises a vertical plate 13, a horizontal plate 14, a reinforcing plate 15 and a rib plate 16, wherein the vertical plate 13 and the horizontal plate 14 are arranged in two, the two vertical plates 13 are symmetrically arranged and are connected to one side, far away from the installation side plate 21, of the assembly side plate 11, and the horizontal plate 14 is used for connecting the vertical plate 13 and the assembly side plate 11 so as to increase the connection strength between the vertical plate 13 and the assembly side plate 11. The reinforcing plate 15 is arranged on one side of the assembling side plate 11 far away from the installing side plate 21 and located between the two vertical plates 13, and the reinforcing plate 15 is arranged for increasing the strength of the assembling side plate 11. The plurality of rib plates 16 are arranged, and the rib plates 16 are arranged on one side of the assembly bottom plate 12 far away from the installation bottom plate 22, between the vertical plate 13 and the assembly side plate 11 and between the vertical plate 13 and the reinforcing plate 15, so that the strength of the frame 1 is increased.
As an alternative to the connection structure of the mounting frame of the battery pack and the vehicle frame, one of the first positioning structure and the second positioning structure is the positioning post 121, and the other is the positioning hole 221. The top of the positioning post 121 is set to be a tapered surface, the bottom of the positioning hole 221 is set to be a tapered hole, and the tapered surface is matched with the tapered hole.
Illustratively, the positioning posts 121 are disposed on the assembly base 12, and the positioning holes 221 are disposed on the mounting base 22. The positioning columns 121 and the positioning holes 221 are provided in a plurality, and the positioning columns 121 and the positioning holes 221 are arranged in a one-to-one correspondence manner.
The bottom of the positioning hole 221 is set to be a tapered hole, and the top of the positioning column 121 is set to be a tapered surface, so that automatic positioning of the positioning column 121 and the positioning hole 221 is facilitated.
As an alternative to the structure of connecting the mounting frame of the battery pack to the vehicle frame, the guide groove 111 is used to provide a guide for the movement of the locking assembly in a direction parallel to the mounting base plate 12 and the mounting base plate 22. The limiting groove 211 comprises a first inclined surface 2111, the locking component comprises a second inclined surface 401, and the first inclined surface 2111 is in abutting fit with the second inclined surface 401 and used for limiting the locking component to move along the direction parallel to the assembly base plate 12. By arranging the first inclined surface 2111 and the second inclined surface 401, on one hand, the locking device plays a role in guiding when the piston rod 32 drives the locking assembly to be locked; on the other hand, after installation frame 2 and frame 1 dismouting many times, the mating surface of locking Assembly and spacing groove 211 takes place wearing and tearing, and accessible piston rod 32 continues to extend, drives locking Assembly further to remove in order to compress tightly installation frame 2, realizes reliable locking. In addition, when the stopper groove 211 has a variation in the height direction due to a manufacturing variation, the first inclined surface 2111 and the second inclined surface 401 make contact with each other to compensate for the variation, thereby reducing the machining accuracy.
As an alternative of the connection structure between the mounting frame and the vehicle frame of the battery pack, the limiting groove 211 further includes a first opposing surface 2112 opposing to the first inclined surface 2111, the locking assembly further includes a second opposing surface 402 opposing to the second inclined surface 401, and after the first inclined surface 2111 and the second inclined surface 401 are in abutting engagement, a gap is left between the first opposing surface 2112 and the second opposing surface 402.
The locking assembly and the limiting groove 211 are limited by the first inclined surface 2111 and the second inclined surface 401, and the first opposite surface 2112 and the second opposite surface 402 are not in contact. When the mounting frame 2 is locked with the frame 1, the engineering machinery vehicle vibrates in the working process, so that the acting force borne by the locking assembly is transmitted to the frame 1 through the matching surface of the locking assembly and the limiting groove 211, and can not be transmitted to the locking oil cylinder 3, and the locking oil cylinder 3 is prevented from bearing radial force to cause damage.
Optionally, the locking assembly and the limiting groove 211 are not in contact in the width direction, and only the bottom of the locking assembly and the bottom of the limiting groove 211 are limited, that is, only the first inclined surface 2111 and the second inclined surface 401 are abutted and limited, and meanwhile, the processing precision of the limiting groove 211 in the width direction is reduced, and the situation that the locking assembly cannot enter the limiting groove 211 due to the manufacturing deviation of the limiting groove 211 in the width direction is avoided.
The inclination angle of the first inclined surface 2111 is the same as the inclination angle of the second inclined surface 401, and in this embodiment, the specific value of the inclination angle is not limited, and can be set by a person skilled in the art according to actual conditions.
As an alternative of the connection structure of the mounting frame and the frame of the battery pack, the locking assembly comprises a locking wedge 41, the locking wedge 41 is connected with the piston rod 32, and the piston rod 32 extends to drive the locking wedge 41 to pass through the guide groove 111 to be matched with the limiting groove 211; the piston rod 32 retracts, bringing the locking wedge 41 out of engagement with the retaining groove 211.
In this embodiment, locking of the mounting frame 2 to the frame 1 is achieved by the locking wedge 41 cooperating with the limiting groove 211. The locking wedge 41 is connected to the piston rod 32 by a connecting shaft.
The cross-section of the locking wedge 41 may be square and correspondingly the cross-section of the retaining groove 211 is square. Alternatively, the cross-section of the locking wedge 41 is circular and correspondingly the cross-section of the retaining groove 211 is circular.
As an alternative of the connection structure of the mounting frame and the frame of the battery pack, the frame 1 is provided with a guide block, the guide groove 111 is provided in the guide block, and the cylinder 31 is fixedly connected with one end of the guide block far away from the mounting frame 2.
The central line of the cylinder body 31 is perpendicular to the assembling side plate 11, the cylinder body 31 is connected with the guide block through a flange 17, the flange 17 is respectively arranged on the cylinder body 31 and the guide block, and the two flanges 17 are fixedly connected through fastening bolts.
In the present embodiment, six locking cylinders 3 and six locking wedges 41 are provided, and the mounting frame 2 is locked with the frame 1 by the six locking wedges 41, so as to ensure the stability of the connection between the mounting frame 2 and the frame 1.
The connection process of the connection structure of the installation frame and the frame of the battery pack provided by the embodiment is as follows:
when the battery pack needs to be replaced, the oil tank supplies oil to the rod cavity of the locking oil cylinder 3, hydraulic oil in the rod cavity compresses the elastic part 33 in the rodless cavity, the piston rod 32 retracts to drive the locking wedge block 41 to be separated from the limiting groove 211, the installation frame 2 is connected with the frame 1 only through the positioning column 121 and the positioning hole 221, the degree of freedom of the installation frame 2 and the frame 1 in the front-back left-right direction is limited, the installation frame 2 is hoisted through a hoisting device such as a crane or a forklift, and the installation frame 2 can be separated from the frame 1 quickly. After the mounting frame 2 is hoisted to the replacement position, the battery pack is taken out of the mounting frame 2 to be replaced.
After the battery package is changed, install frame 2 hoist to the top of frame 1 again, locating hole 221 and reference column 121 cooperation, install frame 2 and frame 1 and realize automatic positioning, after installation bottom plate 22 and assembly bottom plate 12 contact, install frame 2 and frame 1 around, left and right sides direction realize spacingly. At this time, the oil tank supplies oil for the rodless cavity, the piston rod 32 drives the locking wedge 41 to move in the guide groove 111 and to be matched with the limiting groove 211 under the combined action of the elastic restoring force of the elastic element 33 and the hydraulic oil, after the first inclined surface 2111 and the second inclined surface 401 are completely abutted, the limiting of the mounting frame 2 and the frame 1 in the vertical direction is realized, and the mounting frame 2 and the frame 1 are safely locked.
Example two
The embodiment provides a connection structure of a mounting frame and a frame of a battery pack, which is substantially the same as the connection structure of the mounting frame and the frame of the battery pack provided in the first embodiment, except that:
as shown in fig. 8-13, the locking assembly in this embodiment includes a rocker arm 42, the rocker arm 42 is rotatably connected to the frame 1 through a first pin 5, one end of the rocker arm 42 is rotatably connected to the piston rod 32 through a second pin 6, the piston rod 32 extends, and the other end of the rocker arm 42 can pass through the guide slot 111 and be engaged with the limiting slot 211; the piston rod 32 is retracted and the other end of the rocker arm 42 can disengage the retaining groove 211.
One end of the rocker arm 42, which is matched with the limiting groove 211, is provided with a second inclined surface 401 and a second opposite surface 402, and the second inclined surface 401 of the rocker arm 42 is abutted against the first inclined surface 2111 of the limiting groove 211, so that the mounting frame 2 and the frame 1 are locked. The second opposing surface 402 of the rocker arm 42 also does not contact the first opposing surface 2112 of the restriction slot 211. After the second inclined surface 401 of the rocker arm 42 completely abuts against the first inclined surface 2111 of the stopper groove 211, both sides of the rocker arm 42 in the width direction do not contact with both sides of the stopper groove 211 in the width direction, so that the requirement for the machining accuracy of the stopper groove 211 is reduced.
As an alternative of the connection structure of the mounting frame of the battery pack and the frame, the frame 1 is provided with a first support frame 112 and a second support frame 113, and the cylinder 31 is connected with the first support frame 112 through a third pin 7; the swing arm 42 is connected to the second support bracket 113 through the first pin 5.
The end of the cylinder 31 away from the piston rod 32 is provided with a connecting ring 34, the third pin 7 passes through the connecting ring 34 to be fixedly connected with both ends of the first supporting frame 112, and the connecting ring 34 rotates relative to the third pin 7.
A first connecting hole is formed in the middle of the rocker arm 42, a first pin 5 penetrates through the first connecting hole to be fixedly connected with two ends of the second support frame 113, and the rocker arm 42 rotates relative to the first pin 5.
The piston rod 32 is provided with a U-shaped connecting frame 35, one end of the rocker arm 42 connected with the piston rod 32 is provided with a second connecting hole, after the second pin shaft 6 passes through the second connecting hole, two ends of the second pin shaft 6 are fixedly connected with two side walls of the U-shaped connecting frame 35 respectively, and the rocker arm 42 rotates relative to the second pin shaft 6.
In the present embodiment, two locking cylinders 3 and two rocker arms 42 are provided, and the two rocker arms 42 lock the mounting frame 2 with the vehicle frame 1, so as to ensure the stability of the connection of the mounting frame 2 with the vehicle frame 1.
The connection process of the connection structure of the installation frame and the frame of the battery pack provided by the embodiment is as follows:
when the battery pack needs to be replaced, the oil tank supplies oil to the rod cavity of the locking oil cylinder 3, hydraulic oil in the rod cavity compresses the elastic part 33 in the rodless cavity, the piston rod 32 retracts, the rocker arm 42 rotates relative to the piston rod 32 and rotates anticlockwise (with the direction shown in fig. 13 as reference) around the first pin shaft 5, and then the rocker arm 42 is separated from the limiting groove 211, at the moment, the installation frame 2 is connected with the frame 1 only through the positioning column 121 and the positioning hole 221, only the freedom degree of the installation frame 2 and the frame 1 in the front-back left-right direction is limited, the installation frame 2 is hoisted through a hoisting device such as a crane or a forklift, and the quick separation of the installation frame 2 and the frame 1 can be realized. After the mounting frame 2 is hoisted to the replacement position, the battery pack is taken out of the mounting frame 2 to be replaced.
After the battery package is changed, install frame 2 hoist to the top of frame 1 again, locating hole 221 and reference column 121 cooperation, install frame 2 and frame 1 and realize automatic positioning, after installation bottom plate 22 and assembly bottom plate 12 contact, install frame 2 and frame 1 around, left and right sides direction realize spacingly. At this moment, the oil tank supplies oil for the rodless cavity, the piston rod 32 extends under the combined action of the elastic restoring force of the elastic element 33 and the hydraulic oil, the rocker arm 42 rotates relative to the piston rod 32 and rotates clockwise around the first pin shaft 5, so that the rocker arm 42 penetrates through the guide groove 111 to be contacted with the limiting groove 211, after the first inclined surface 2111 and the second inclined surface 401 are completely abutted, the limiting of the mounting frame 2 and the frame 1 in the up-down direction is realized, and the mounting frame 2 and the frame 1 are safely locked.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (11)
1. A connection structure of a mounting frame and a frame of a battery pack is characterized in that a first positioning structure is arranged on the frame (1), a second positioning structure is arranged on the mounting frame (2), and the first positioning structure and the second positioning structure are matched to position the mounting frame (2) on the frame (1);
the connecting structure comprises a locking oil cylinder (3) and a locking assembly, the locking oil cylinder (3) comprises a cylinder body (31) and a piston rod (32), and the piston rod (32) is slidably arranged in the cylinder body (31); the cylinder body (31) is fixed on the frame (1), the piston rod (32) is connected with the locking assembly, a guide groove (111) is formed in the frame (1), a limiting groove (211) is formed in the mounting frame (2), the piston rod (32) extends to drive the locking assembly to penetrate through the guide groove (111) to be matched with the limiting groove (211), and the mounting frame (2) and the frame (1) are locked; the piston rod (32) retracts, and the locking assembly can be driven to be disengaged from the limiting groove (211).
2. The connection structure of the mounting frame and the frame of the battery pack according to claim 1, wherein the frame (1) comprises a mounting side plate (11) and a mounting bottom plate (12) which are arranged perpendicular to each other, the first positioning structure is arranged on the mounting bottom plate (12), the guide groove (111) is arranged on the mounting side plate (11), and the cylinder body (31) is fixed on the mounting side plate (11);
the installation frame (2) includes installation curb plate (21) and mounting plate (22) that mutually perpendicular set up, second location structure set up in mounting plate (22) are last, spacing groove (211) set up in on installation curb plate (21).
3. The connection structure of the mounting frame and the frame of the battery pack according to claim 2, wherein one of the first positioning structure and the second positioning structure is a positioning column (121), and the other is a positioning hole (221);
the top of the positioning column (121) is provided with a conical surface, the bottom of the positioning hole (221) is provided with a conical hole, and the conical surface is matched with the conical hole.
4. The connection structure of a mounting frame and a frame for a battery pack according to claim 2, wherein the guide groove (111) is used for guiding the locking assembly to move in a direction parallel to the mounting base plate (12);
the limiting groove (211) comprises a first inclined surface (2111), the locking assembly comprises a second inclined surface (401), and the first inclined surface (2111) is in butt joint with the second inclined surface (401) and used for limiting the locking assembly to move in a direction parallel to the assembling base plate (12).
5. The connection structure of the mounting frame and the frame of the battery pack according to claim 4, wherein the limiting groove (211) further comprises a first opposite surface (2112) opposite to the first inclined surface (2111), the locking assembly further comprises a second opposite surface (402) opposite to the second inclined surface (401), and after the first inclined surface (2111) is in abutting fit with the second inclined surface (401), a gap is left between the first opposite surface (2112) and the second opposite surface (402).
6. The connection structure of the mounting frame and the frame of the battery pack according to claim 1, wherein the locking cylinder (3) further comprises an elastic member (33), and the elastic member (33) is disposed in the rodless cavity of the cylinder body (31).
7. The connection structure of a mounting frame and a frame of a battery pack according to any one of claims 1 to 6, wherein the locking assembly comprises a locking wedge (41), the locking wedge (41) is connected with the piston rod (32), the piston rod (32) is extended to drive the locking wedge (41) to pass through the guide groove (111) to be matched with the limiting groove (211); the piston rod (32) retracts to drive the locking wedge block (41) to be disengaged from the limiting groove (211).
8. The connection structure of the mounting frame and the frame of the battery pack according to claim 7, wherein the frame (1) is provided with a guide block, the guide groove (111) is provided on the guide block, and the cylinder (31) is fixedly connected with one end of the guide block far away from the mounting frame (2).
9. The connection structure of the mounting frame and the vehicle frame of the battery pack according to any one of claims 1 to 6, wherein the locking assembly comprises a rocker arm (42), the rocker arm (42) is rotatably connected with the vehicle frame (1) through a first pin shaft (5), one end of the rocker arm (42) is rotatably connected with the piston rod (32) through a second pin shaft (6), the piston rod (32) is extended, and the other end of the rocker arm (42) can pass through the guide groove (111) to be matched with the limiting groove (211); the piston rod (32) retracts, and the other end of the rocker arm (42) can be disengaged from the limiting groove (211).
10. The connection structure of the mounting frame and the frame of the battery pack according to claim 9, wherein the frame (1) is provided with a first support frame (112) and a second support frame (113), and the cylinder (31) is connected with the first support frame (112) through a third pin (7); the rocker arm (42) is connected with the second support frame (113) through the first pin shaft (5).
11. An engineering machinery vehicle, characterized by comprising an oil tank, a battery pack, a mounting frame (2) and a vehicle frame (1), wherein the battery pack is mounted in the mounting frame (2), the mounting frame (2) and the vehicle frame (1) are fixed through a connecting structure of the mounting frame and the vehicle frame of the battery pack according to any one of claims 1-10, and the oil tank provides driving oil for the locking oil cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221316729.6U CN217374130U (en) | 2022-05-30 | 2022-05-30 | Mounting frame and frame connection structure of battery pack and engineering machinery vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221316729.6U CN217374130U (en) | 2022-05-30 | 2022-05-30 | Mounting frame and frame connection structure of battery pack and engineering machinery vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217374130U true CN217374130U (en) | 2022-09-06 |
Family
ID=83089206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221316729.6U Active CN217374130U (en) | 2022-05-30 | 2022-05-30 | Mounting frame and frame connection structure of battery pack and engineering machinery vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217374130U (en) |
-
2022
- 2022-05-30 CN CN202221316729.6U patent/CN217374130U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016139226A1 (en) | Moving device for counterweight | |
| CN217374130U (en) | Mounting frame and frame connection structure of battery pack and engineering machinery vehicle | |
| CN212532085U (en) | Mechanical device for disassembling and assembling mine car oil cylinder | |
| CN219056037U (en) | Heavy-duty truck replacement locking structure and electric heavy-duty truck | |
| JP5119223B2 (en) | Work machine and work machine cab installation method | |
| CN216801900U (en) | Sintering machine trolley shaft sleeve dismounting device | |
| CN214237999U (en) | Crawler belt pin shaft press-fitting and dismounting device | |
| CN111704061B (en) | Installation device of combined counterweight and crane | |
| CN202510468U (en) | Safety device for horsehead pin of oil pumping unit | |
| CN220009428U (en) | Quick-change integrated battery pack fixing structure and battery-change electric engineering machinery | |
| CN213980670U (en) | Pressurization structure and rotary drilling rig | |
| CN221662377U (en) | Node mechanism for hoisting steel cofferdam | |
| CN111101717A (en) | Jacking device and tower support | |
| JP2559810Y2 (en) | Guide give mounting structure | |
| CN218538947U (en) | Electric shovel circular rail bracket | |
| CN216969319U (en) | Battery frame locking device for heavy truck side battery replacement | |
| CN216336377U (en) | Hydraulic elevator compatible with power battery and gearbox dismounting | |
| CN214186981U (en) | Oil cylinder dismounting workpiece | |
| CN215638725U (en) | Rotary kiln riding wheel assembly convenient to disassemble and assemble | |
| CN215048230U (en) | Clamping device for abrasion treatment of hinged shaft hole of cantilever box girder of grab ship unloader | |
| CN212669032U (en) | Novel arm pin limiting device | |
| CN218231630U (en) | Rotary table locking device, rotary table assembly and operation machine | |
| CN221398967U (en) | Drilling pile steel pile casing and lifting device capable of being recycled | |
| CN218428099U (en) | Cutter dismouting device | |
| CN215924161U (en) | Lifting lug for dismounting working of overlong overhanging steel structure cornice of high-rise building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |