CN217352650U - Electric wheel type excavator - Google Patents
Electric wheel type excavator Download PDFInfo
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- CN217352650U CN217352650U CN202220649848.7U CN202220649848U CN217352650U CN 217352650 U CN217352650 U CN 217352650U CN 202220649848 U CN202220649848 U CN 202220649848U CN 217352650 U CN217352650 U CN 217352650U
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Abstract
The invention relates to an electric wheel type excavator which comprises a frame assembly, a motor, an operating mechanism, a slewing mechanism, a travelling mechanism and a transmission mechanism, wherein the frame assembly comprises a frame, a motor, a working mechanism, a slewing mechanism and a transmission mechanism; the frame assembly comprises an upper frame and a lower frame, the upper frame is provided with a motor and an operation mechanism, the lower frame is provided with a walking mechanism and a transmission mechanism, the upper frame and the lower frame are connected through a swing mechanism, the swing mechanism is connected with the output end of the motor, and the swing mechanism is used for driving the upper frame to rotate relative to the lower frame; the transmission mechanism is connected with the output end of the motor, the transmission mechanism is in transmission connection with the travelling mechanism, the transmission mechanism is used for transmitting the power of the motor to the travelling mechanism, and the travelling mechanism is used for driving the excavator to travel forwards or backwards. Above-mentioned technical scheme can realize the advance and retreat of complete machine and the free rotation function of frame through a motor drive action, compares the mode that hydraulic oil pump supplied oil to hydraulic motor drive, and the efficient and the energy consumption greatly reduced of motor.
Description
Technical Field
The application relates to the field of electric wheel type excavators, in particular to an electric wheel type excavator.
Background
The upper frame and the lower frame of the electric wheel type excavator are connected by adopting a slewing bearing, and in the traditional fuel oil excavator, the hydraulic motor arranged on the upper frame drives a gear meshed with a slewing gear ring to realize the slewing of the upper frame, so that the functions of excavating and unloading by bucket indexing are achieved. However, once rotation is needed when excavation and unloading are finished once, the working surface leveling process is realized by bucket swinging, the rotation of the upper frame is needed, and the energy consumed by rotation in the whole machine energy consumption process accounts for 20% -30% of the energy consumed by the whole machine in the working process; the hydraulic pump provides power oil for the hydraulic motor, and the hydraulic pump and the hydraulic motor work together and have the problems of low volumetric efficiency and high energy consumption.
Disclosure of Invention
In view of the above problems, the present application provides an electric wheel excavator, which is used for solving the technical problems of low volumetric efficiency and high energy consumption in the operation of a rotary hydraulic motor.
In order to achieve the above object, the inventor provides an electric wheel type excavator, which comprises a frame assembly, a motor, an operating mechanism, a swing mechanism, a travelling mechanism and a transmission mechanism;
the frame assembly comprises an upper frame and a lower frame, the upper frame is provided with the motor and the operating mechanism, the lower frame is provided with the travelling mechanism and the transmission mechanism, the upper frame and the lower frame are connected through the swing mechanism, the swing mechanism is connected with the output end of the motor, and the swing mechanism is used for driving the upper frame to rotate relative to the lower frame;
the transmission mechanism is connected with the output end of the motor, the transmission mechanism is in transmission connection with the travelling mechanism, the transmission mechanism is used for conveying the power of the motor to the travelling mechanism, and the travelling mechanism is used for driving the excavator to travel forwards or backwards.
In some embodiments, the electric wheel excavator further includes a swing brake mechanism provided on the swing mechanism for restricting the swing of the swing mechanism.
In some embodiments, the rotation braking mechanism includes a rotation brake disc disposed on the rotation mechanism, and a rotation brake caliper disposed on the rotation brake disc, the rotation brake caliper being configured to clamp the rotation brake disc to limit rotation of the rotation mechanism.
In some embodiments, the swing mechanism includes a swing bearing, an inner ring of the swing bearing is connected with the upper frame, and an outer ring of the swing bearing is connected with the lower frame.
In some embodiments, the rotating brake disc is fixedly connected to the outer race of the slewing bearing.
In some embodiments, the traveling mechanism includes a front axle and a rear axle, the front axle and the rear axle are respectively connected to two ends of the lower frame, and the transmission mechanism is in transmission connection with the front axle and/or the rear axle;
front axle wheels are arranged at two ends of the front axle, and rear axle wheels are arranged at two ends of the rear axle.
In some embodiments, a front axle brake assembly is disposed at each end of the front axle, and the front axle brake assembly includes a front axle brake disc disposed in the front axle wheel, and a front axle brake caliper disposed on the front axle brake disc, and the front axle brake caliper is configured to clamp the front axle brake disc to limit movement of the front axle wheel.
In some embodiments, both ends of the rear axle are provided with rear axle brake assemblies, each rear axle brake assembly comprises a rear axle brake disc and a rear axle brake caliper, each rear axle brake disc is arranged in a corresponding rear axle wheel, each rear axle brake disc is provided with the corresponding rear axle brake caliper, and each rear axle brake caliper is used for clamping the corresponding rear axle brake disc so as to limit the movement of the corresponding rear axle wheel.
In some embodiments, the transmission mechanism is in transmission connection with the front axle and/or the rear axle through a transmission shaft.
Different from the prior art, the technical scheme is provided with the transmission mechanism and the motor, and the swing mechanism and the walking mechanism are driven by one motor. Specifically, the output end of the motor is connected with the rotating mechanism, and the motor drives the rotating mechanism to rotate, so that the upper frame is driven to rotate relative to the lower frame. The output end of the motor is also connected with a transmission mechanism, and the transmission mechanism is in transmission connection with the traveling mechanism, so that the power of the motor is transmitted to the traveling mechanism to drive the traveling mechanism to travel. The driving and reversing of the whole machine and the free rotation function of the frame can be realized through the driving action of the motor, and compared with the mode that a hydraulic oil pump supplies oil to the hydraulic motor, the efficiency of the motor is high, and the energy consumption is greatly reduced.
The above description of the present invention is only an overview of the technical solutions of the present application, and in order to make the technical solutions of the present application more clearly understood by those skilled in the art, the present invention may be further implemented according to the content described in the text and drawings of the present application, and in order to make the above objects, other objects, features, and advantages of the present application more easily understood, the following description is made in conjunction with the detailed description of the present application and the drawings.
Drawings
The drawings are only for purposes of illustrating the principles, implementations, applications, features, and effects of particular embodiments of the application, as well as others related thereto, and are not to be construed as limiting the application.
In the drawings of the specification:
fig. 1 is a schematic structural view of an electric wheel excavator according to an embodiment;
FIG. 2 is a schematic structural view of the electric wheel excavator without a working mechanism according to an embodiment;
FIG. 3 is another schematic view of an embodiment of the electric wheel excavator without a working mechanism;
FIG. 4 is an enlarged view of A in FIG. 3;
fig. 5 is a schematic structural diagram of a slewing braking mechanism according to an embodiment.
The reference numerals referred to in the above figures are explained below:
1. an operating mechanism;
2. a frame assembly;
21. an upper frame;
22. a lower frame;
3. a swing mechanism;
31. a slewing bearing;
4. a traveling mechanism;
41. a front axle;
411. a front wheel;
412. a front axle brake assembly;
42. a rear axle;
421. a rear wheel;
422. a rear axle brake assembly;
5. a transmission mechanism;
51. a drive shaft;
6. a motor;
7. a rotation braking mechanism;
71. a rotating brake disk;
72. a rotary brake caliper.
Detailed Description
In order to explain in detail possible application scenarios, technical principles, practical embodiments, and the like of the present application, the following detailed description is given with reference to the accompanying drawings in conjunction with the listed embodiments. The embodiments described herein are merely for more clearly illustrating the technical solutions of the present application, and therefore, the embodiments are only used as examples, and the scope of the present application is not limited thereby.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or related to other embodiments specifically defined. In principle, in the present application, the technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable solution as long as there is no technical contradiction or conflict.
Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the use of relational terms herein is intended only to describe particular embodiments and is not intended to limit the present application.
In the description of the present application, the term "and/or" is a expression for describing a logical relationship between objects, indicating that three relationships may exist, for example, a and/or B, indicating that: there are three cases of A, B, and both A and B. In addition, the character "/" herein generally indicates that the former and latter associated objects are in a logical relationship of "or".
In this application, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any actual such relationship or order between such entities or operations.
Without further limitation, in this application, the use of the phrases "comprising," "including," "having," or other similar expressions, is intended to cover a non-exclusive inclusion, and these expressions do not exclude the presence of additional elements in a process, method, or article that includes the elements, such that a process, method, or article that includes a list of elements may include not only those elements defined, but other elements not expressly listed, or may include other elements inherent to such process, method, or article.
As is understood in the examination of the guidelines, the terms "greater than", "less than", "more than" and the like in this application are to be understood as excluding the number; the expressions "above", "below", "within" and the like are understood to include the present numbers. In addition, in the description of the embodiments of the present application, "a plurality" means two or more (including two), and expressions related to "a plurality" similar thereto are also understood, for example, "a plurality of groups", "a plurality of times", and the like, unless specifically defined otherwise.
In the description of the embodiments of the present application, spatially relative expressions such as "central," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used, and the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the specific embodiments or drawings and are only for convenience of describing the specific embodiments of the present application or for the convenience of the reader, and do not indicate or imply that the device or component in question must have a specific position, a specific orientation, or be constructed or operated in a specific orientation and therefore should not be construed as limiting the embodiments of the present application.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and "disposed" used in the description of the embodiments of the present application are to be construed broadly. For example, the connection can be a fixed connection, a detachable connection, or an integrated arrangement; it can be a mechanical connection, an electrical connection, or a communication connection; they may be directly connected or indirectly connected through an intermediate; which may be communication within two elements or an interaction of two elements. Specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains in accordance with specific situations.
Referring to fig. 1 and 2, the present embodiment relates to an electric wheel excavator, which includes a frame assembly 2, a motor 6, a working mechanism 1, a swing mechanism 3, a traveling mechanism 4, and a transmission mechanism 5. The frame assembly 2 comprises an upper frame 21 and a lower frame 22, the upper frame 21 is provided with a motor 6 and an operation mechanism 1, the lower frame 22 is provided with a walking mechanism 4 and a transmission mechanism 5, the upper frame 21 and the lower frame 22 are connected through a swing mechanism 3, the swing mechanism 3 is connected with an output end of the motor 6, and the swing mechanism 3 is used for driving the upper frame 21 to rotate relative to the lower frame 22. The transmission mechanism 5 is connected with the output end of the motor 6, the transmission mechanism 5 is in transmission connection with the traveling mechanism 4, the transmission mechanism 5 is used for transmitting the power of the motor 6 to the traveling mechanism 4, and the traveling mechanism 4 is used for driving the excavator to travel forwards or backwards.
The frame assembly 2 is a full vehicle frame, and specifically includes an upper frame 21 and a lower frame 22. The upper frame 21 is provided on the lower frame 22. The upper frame 21 is provided with a motor 6, an operation mechanism 1 and a cab, and the lower frame 22 is provided with a traveling mechanism 4 and a transmission mechanism 5. A turning mechanism 3 is arranged between the upper frame 21 and the lower frame 22, and the upper frame 21 rotates relative to the lower frame 22 under the action of the turning mechanism 3.
The motor 6 is arranged on the upper frame 21 and provides power for the rotating mechanism 3 and the travelling mechanism 4.
The operation mechanism 1 comprises a movable arm, a bucket rod and a bucket, wherein one end of the movable arm is hinged with the upper frame 21, the other end of the movable arm is hinged with one end of the bucket rod, and the bucket is hinged at the other end of the bucket rod. The boom, the arm, and the bucket are driven by the servo motor 6 and the screw mechanism, respectively, the boom has a lifting degree of freedom by driving of the servo motor 6, the arm and the bucket have a rotational degree of freedom by driving of the respective servo motors 6, and the boom, the arm, and the bucket rotate with the upper frame 21. The servo motors 6 for driving the movable arm, the bucket rod and the bucket are identical in structure with the screw rod mechanism, the screw rod mechanism comprises a shell, a screw rod, a nut and an output shaft, the servo motors 6 are mounted on the shell, the output end of each servo motor 6 is connected with a gear, the gear is in meshing transmission with the screw rod mounted in the shell, the nut is in threaded connection with the screw rod, one end of the output shaft is connected with the nut, and the other end of the output shaft is connected with the movable arm, the bucket rod or the bucket.
The running gear 4 may be a crawler track or a wheel track.
The transmission mechanism 5 is a transmission case, and an output flange of the motor 6 is connected with the angle transmission case through a flange to transmit power. Alternatively, the transmission case is an angle transmission case, and an angle transmission generally means a right-angle transmission, i.e., the axes of the input shaft and the output shaft are perpendicular to each other. In some embodiments, the angle drive box comprises a reversing box and a wheel edge assembly, and the reversing box and the wheel edge assembly are integrally arranged. The reversing box is internally provided with an angle transmission part, such as a bevel gear or a worm gear and worm, and the angle transmission part is used for changing the transmission direction of the power transmitted to the reversing box; the wheel edge assembly is arranged at the output end of the reversing box and can rotate under the driving of the output end of the reversing box, and the wheel edge assembly comprises a wheel hub, a tire and related structural members. The reversing box and the wheel side assembly are integrated, the wheel side assembly is mounted on the reversing box in advance, the reversing box and the wheel side assembly can be directly mounted on the lower frame 22 as an integral part during the whole vehicle assembly, and the wheel side assembly does not need to be separately assembled during the whole vehicle assembly.
Different from the prior art, the technical scheme is provided with the transmission mechanism 5 and the motor 6, and the swing mechanism 3 and the walking mechanism 4 are driven by one motor 6. Specifically, the output end of the motor 6 is connected to the swing mechanism 3, and the swing mechanism 3 is driven by the motor 6 to swing, so as to drive the upper frame 21 to rotate relative to the lower frame 22. The output end of the motor 6 is also connected with the transmission mechanism 5, the transmission mechanism 5 is in transmission connection with the traveling mechanism 4, and the power of the motor 6 is transmitted to the traveling mechanism 4 to drive the traveling mechanism 4 to travel. The driving and reversing of the whole machine and the free rotation function of the frame can be realized through the driving action of the motor 6, and compared with a mode that a hydraulic oil pump supplies oil to the hydraulic motor for driving, the efficiency of the motor 6 is high, and the energy consumption is greatly reduced.
According to some embodiments of the present application, optionally, as shown in fig. 3 to 5, the electric wheeled excavator further includes a swing brake mechanism 7, the swing brake mechanism 7 is disposed on the swing mechanism 3, and the swing brake mechanism 7 is used for limiting the swing of the swing mechanism 3.
In order to make the power of the motor 6 reasonably utilized, when the traveling mechanism 4 is only needed to travel, the rotating mechanism 3 does not rotate, and a rotating brake mechanism 7 is arranged for limiting the rotation of the rotating mechanism 3. Specifically, the turning mechanism 3 is provided with a turning brake mechanism 7, and the turning brake mechanism 7 is a disc brake. In some embodiments, the rotating brake mechanism 7 includes a rotating brake disc 71 and a rotating brake caliper 72, the rotating brake disc 71 is disposed on the rotating mechanism 3, the rotating brake disc 71 is disposed with the rotating brake caliper 72, and the rotating brake caliper 72 is used for clamping the rotating brake disc 71 to limit the rotation of the rotating mechanism 3. Here, the rotary brake disk 71 is fixed to the rotary mechanism 3, the rotary brake caliper 72 is fixed to the upper frame 21 and provided on the rotary brake disk 71, and the rotary brake caliper 72 is neither rotatable nor movable in the brake disk axial direction. Two rotary brake wheel cylinder pistons are arranged in the rotary brake caliper 72 and respectively press rotary brake blocks on two sides of the rotary brake disc 71. When the turning brake is required, the turning brake fluid from the turning brake master cylinder is pressed into the turning brake cylinder, the hydraulic pressure of the turning brake cylinder is increased, the two turning wheel cylinder pistons are moved to the turning brake disc 71 under the hydraulic pressure, the turning brake pads are pressed against the turning brake disc 71, the turning brake pads clamp the turning brake disc 71, and the friction torque for preventing the turning mechanism 3 from turning is generated, thereby realizing the braking.
The working principle is as follows: when the whole machine needs to move forwards and backwards, the rotary brake caliper 72 clamps the rotary brake disc 71 through air pressure or hydraulic pressure, so that the upper frame 21 and the lower frame 22 cannot rotate relatively, at the moment, after the motor 6 is electrified, a rotor of the motor 6 rotates, and through the meshing of a driving wheel and a driven wheel of the angle transmission box, driving force is transmitted to the walking mechanism 4, so that the whole machine moves forwards and backwards. In particular use, when the swing brake caliper 72 is released, the upper frame 21 and the lower frame 22 may rotate relative to each other. When the rotary brake caliper 72 is clamped, the upper frame 21 and the lower frame 22 cannot rotate relatively, the power of the motor 6 is transmitted to the traveling mechanism 4 through the transmission mechanism 5, and the traveling mechanism 4 drives the whole vehicle to advance and retreat.
According to some embodiments of the present application, optionally, as shown in fig. 2, the swing mechanism 3 includes a swing bearing 31, an inner ring of the swing bearing 31 is connected with the upper frame 21, and an outer ring of the swing bearing 31 is connected with the lower frame 22. The swing mechanism 3 rotates the upper frame 21 relative to the lower frame 22 via the swing bearing 31. Specifically, the motor 6 and the inner ring of the slewing bearing 31 are connected with the upper frame 21 through bolts; the outer ring of the slewing bearing 31 is connected with the lower frame 22 through bolts, and the brake disc is fixedly connected with the outer ring of the slewing bearing through bolts.
According to some embodiments of the present application, optionally, as shown in fig. 2, the traveling mechanism 4 includes a front axle 41 and a rear axle 42, the front axle 41 and the rear axle 42 are respectively connected to two ends of the lower frame 22, and the transmission mechanism 5 is in transmission connection with the front axle 41 and/or the rear axle 42. Front wheels 411 are provided at both ends of the front axle 41, and rear wheels 421 are provided at both ends of the rear axle 42.
Specifically, a front axle 41 and a rear axle 42 are respectively disposed on both sides of the lower frame 22, a front wheel 411 is disposed on both ends of the front axle 41, and a rear wheel 421 is disposed on both ends of the rear axle 42. The excavator moves by the front wheels 411 and the rear wheels 421. Specifically, the output end of the transmission mechanism 5 is connected to the front axle 41 and the rear axle 42 through a transmission shaft 51, and the excavator is driven to move by the front axle 41 and the rear axle 42 by directly transmitting power to the front axle 41 and the rear axle 42. In other embodiments, when the front axle 41 is a driving axle (transmitting power) and the rear axle 42 is a driven axle (not transmitting power, and performing steering), the output end of the transmission mechanism 5 is directly connected with the front axle 41 through the transmission shaft 51. Similarly, when the rear axle 42 is a driving axle (for transmitting power), the front axle 41 is a driven axle (for transmitting no power and performing steering), and the output end of the transmission mechanism 5 is directly connected with the rear axle 42 through the transmission shaft 51.
According to some embodiments of the present application, optionally, as shown in fig. 3, both ends of the front axle 41 are provided with a front axle brake assembly 412, and the front axle brake assembly 412 includes a front axle brake disc disposed inside the front wheel 411 and a front axle brake caliper disposed on the front axle brake disc and used for clamping the front axle brake disc to limit the movement of the front wheel 411.
In order to make the power of the motor 6 be used properly, when the upper frame 21 is rotated only by the rotating mechanism 3, the traveling mechanism 4 is stopped, and a front axle brake assembly 412 is provided to limit the movement of the front wheel 411. Specifically, when the front axle 41 is a driving axle (for transmitting power), and the rear axle 42 is a driven axle (for not transmitting power and performing a steering function), the output end of the transmission mechanism 5 may be directly connected to the front axle 41 through the transmission shaft 51. At this time, it is only necessary to provide front axle brake assemblies 412 at both ends of front axle 41. The front axle brake disc is fixed to the front axle hub, and the front axle brake caliper is fixed to the front axle 41 so as not to rotate nor move axially along the brake disc. Two front axle brake wheel cylinder pistons are arranged in the front axle brake caliper and respectively press front axle brake blocks on two sides of the front axle brake disc. When a driver steps on a brake pedal to brake the automobile, brake fluid from a front axle brake master cylinder is pressed into a front axle brake cylinder, the hydraulic pressure of the front axle brake cylinder rises, two front axle cylinder pistons move towards a front axle brake disc under the action of hydraulic pressure to press a front axle brake block against the front axle brake disc, the front axle brake block clamps the front axle brake disc, and friction torque for preventing the front wheel 411 from rotating is generated to realize braking.
According to some embodiments of the present application, optionally, as shown in fig. 3, both ends of the rear axle 42 are provided with rear axle brake assemblies 422, each rear axle brake assembly 422 includes a rear axle brake disc and a rear axle brake caliper, the rear axle brake disc is disposed in the rear wheel 421, the rear axle brake disc is provided with a rear axle brake caliper, and the rear axle brake caliper is used for clamping the rear axle brake disc to limit the movement of the rear wheel 421.
Similarly, in order to make the power of the motor 6 reasonably utilized, when the upper frame 21 is driven by the turning mechanism 3 to turn, the traveling mechanism 4 is stopped, and a rear axle brake assembly 422 is provided for limiting the movement of the rear wheel 421. Specifically, when the rear axle 42 is a driving axle (power transmission), the front axle 41 is a driven axle (power transmission, steering function), and the output end of the transmission mechanism 5 is directly connected to the rear axle 42 through the transmission shaft 51. In this case, it is only necessary to provide rear axle brake assemblies 422 at both ends of the rear axle 42.
In some embodiments, to enable full wheel braking, a front axle brake assembly 412 is provided on front axle 41 and a front axle brake assembly 412 is provided on rear axle 42. Alternatively, in other embodiments, when the output end of the transmission mechanism 5 is connected to the front axle 41 and the rear axle 42 through the transmission shaft 51, the power is directly transmitted to the front axle 41 and the rear axle 42, and the excavator is driven by the front axle 41 and the rear axle 42 to move, the front axle brake assembly 412 and the rear axle brake assembly 422 need to work together. The front axle brake assembly 412 and the rear axle brake assembly 422 have the same structure and different arrangement positions. When the excavator needs to rotate, the front axle brake caliper and the rear axle brake caliper are controlled to tightly hold the respective hubs, and the whole excavator stops. After the motor 6 is electrified, the rotor of the motor 6 is fixed, at the moment, the shell of the motor 6 drives the upper frame 21 to rotate, and an operator controls the rotation angles of the upper frame 21 and the lower frame 22 according to the operation requirement.
In actual use, the rotation brake assembly, the front axle brake assembly 412 and the rear axle brake assembly 422 are required to be used together. Specifically, when the whole machine needs to move forward and backward, the rotary brake caliper 72 clamps the rotary brake disc 71 through air pressure or hydraulic pressure, so that the upper frame 21 and the lower frame 22 cannot rotate relatively. After the motor 6 is electrified, the rotor of the motor 6 rotates, and through the meshing of the driving wheel and the driven wheel of the angle transmission box, the driving force is transmitted to the front wheel 411 and/or the rear wheel 421, so that the whole vehicle is driven to move back and forth. When the whole machine needs to dig, the whole machine stops, the front axle brake assembly 412 and the rear axle brake assembly 422 are used for tightly holding the wheels of the whole machine, and the whole machine stops moving. When the upper frame 21 of the excavator needs to perform rotary excavation or discharging, the rotary brake caliper 72 is released, and as the front wheel 411 and the rear wheel 421 are braked, the rotor of the motor 6 is fixed after the motor 6 is electrified, at the moment, the shell of the motor 6 drives the upper frame 21 to rotate, and after an operator controls the rotation angles of the upper frame 21 and the lower frame 22 according to the operation requirement, the motor 6 is controlled to be powered off, the rotary brake caliper 72 is controlled to clamp the rotary brake disc 71, the whole excavator starts to perform discharging or excavating, and the action that the motor 6 is electrified and driven, and the rotary brake caliper 72 and the motor 6 are powered off to control the clamping of the rotary brake caliper 72 is repeated, so that the rotary control requirement of the upper frame 21 can be met. The whole machine can move forward and backward by utilizing the rotary driving action of one motor 6, and the free rotation function of the upper frame 21 can be realized by matching with the action of the rotary brake caliper 72, so that the structure is simple; the high efficiency drive of motor 6 compares the mode that hydraulic oil pump fuel feeding supplied hydraulic motor drive, and energy consumption greatly reduced.
Finally, it should be noted that, although the above embodiments have been described in the text and drawings of the present application, the scope of the patent protection of the present application is not limited thereby. All technical solutions which are generated by replacing or modifying the equivalent structure or the equivalent flow according to the contents described in the text and the drawings of the present application, and which are directly or indirectly implemented in other related technical fields, are included in the scope of protection of the present application.
Claims (9)
1. An electric wheel type excavator is characterized by comprising a frame assembly, a motor, an operating mechanism, a slewing mechanism, a travelling mechanism and a transmission mechanism;
the frame assembly comprises an upper frame and a lower frame, the upper frame is provided with the motor and the operating mechanism, the lower frame is provided with the travelling mechanism and the transmission mechanism, the upper frame and the lower frame are connected through the swing mechanism, the swing mechanism is connected with the output end of the motor, and the swing mechanism is used for driving the upper frame to rotate relative to the lower frame;
the transmission mechanism is connected with the output end of the motor, the transmission mechanism is in transmission connection with the travelling mechanism, the transmission mechanism is used for conveying the power of the motor to the travelling mechanism, and the travelling mechanism is used for driving the excavator to travel forwards or backwards.
2. The electric wheel excavator of claim 1 further comprising a swing brake mechanism disposed on the swing mechanism for limiting swing of the swing mechanism.
3. The electric wheel excavator as set forth in claim 2 wherein the swing brake mechanism includes a swing brake disc provided on the swing mechanism and a swing caliper for catching the swing brake disc to restrict the swing mechanism from swinging.
4. The electric wheel excavator of claim 3 wherein the swing mechanism includes a swing bearing having an inner race coupled to the upper frame and an outer race coupled to the lower frame.
5. The electric wheeled excavator of claim 4 wherein the slewing brake disc is fixedly connected to an outer race of the slewing bearing.
6. The electric wheel excavator as claimed in claim 1, wherein the traveling mechanism comprises a front axle and a rear axle, the front axle and the rear axle are connected to both ends of the lower frame, respectively, and the transmission mechanism is in transmission connection with the front axle and/or the rear axle;
front axle wheels are arranged at two ends of the front axle, and rear axle wheels are arranged at two ends of the rear axle.
7. The electric wheeled excavator of claim 6 wherein the front axle is provided with front axle brake assemblies at both ends thereof, the front axle brake assemblies comprise a front axle brake disc and a front axle brake caliper, the front axle brake disc is disposed in the front axle wheel, the front axle brake disc is provided with the front axle brake caliper, and the front axle brake caliper is used for clamping the front axle brake disc to limit the movement of the front axle wheel.
8. The electric wheeled excavator of claim 6 wherein each end of the rear axle is provided with a rear axle brake assembly, the rear axle brake assembly comprises a rear axle brake disc and a rear axle brake caliper, the rear axle brake disc is disposed in the rear axle wheel, the rear axle brake disc is provided with the rear axle brake caliper, and the rear axle brake caliper is used for clamping the rear axle brake disc to limit the movement of the rear axle wheel.
9. The electric wheeled excavator of claim 6 wherein said drive mechanism is drivingly connected to said front axle and/or said rear axle by a drive shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220649848.7U CN217352650U (en) | 2022-03-23 | 2022-03-23 | Electric wheel type excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220649848.7U CN217352650U (en) | 2022-03-23 | 2022-03-23 | Electric wheel type excavator |
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| Publication Number | Publication Date |
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| CN217352650U true CN217352650U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220649848.7U Active CN217352650U (en) | 2022-03-23 | 2022-03-23 | Electric wheel type excavator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809172A (en) * | 2022-03-23 | 2022-07-29 | 福建万润新能源科技有限公司 | Digging machine |
-
2022
- 2022-03-23 CN CN202220649848.7U patent/CN217352650U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809172A (en) * | 2022-03-23 | 2022-07-29 | 福建万润新能源科技有限公司 | Digging machine |
| CN114809172B (en) * | 2022-03-23 | 2023-10-27 | 福建万润新能源科技有限公司 | Excavator |
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