CN116177423A - Counterweight displacement device and working machine - Google Patents
Counterweight displacement device and working machine Download PDFInfo
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- CN116177423A CN116177423A CN202310324569.2A CN202310324569A CN116177423A CN 116177423 A CN116177423 A CN 116177423A CN 202310324569 A CN202310324569 A CN 202310324569A CN 116177423 A CN116177423 A CN 116177423A
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- plate
- counterweight
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- piston
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
- B66C23/76—Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/18—Counterweights
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
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- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to the technical field of engineering machinery, and provides a counterweight displacement device and an operation machine, wherein the counterweight displacement device comprises an ear plate, a first driving mechanism, a first detection element for detecting the horizontal position of the ear plate, a sliding plate for supporting a counterweight, a lifting driving mechanism and a controller, wherein the ear plate is in sliding connection with a winch box of the operation machine, and the ear plate is used for connecting the counterweight; the first driving mechanism drives the lug plate to horizontally move along the direction approaching or separating from the turntable of the working machine; the second driving mechanism is used for driving the sliding plate to move, and the moving path of the sliding plate is consistent with that of the lug plate; the lifting driving mechanism is arranged on the frame of the working machine and used for driving the sliding plate to lift; the controller controls the first driving mechanism and the second driving mechanism to stop according to the detection signal of the first detection element respectively, so that the horizontal positions of the lug plate and the counterweight are matched. The accurate alignment of the counterweight and the lug plate can be realized, the lifting driving mechanism is arranged on the frame, the gravity of the received counterweight can be transferred to the frame, and the phenomena of oil circuit abrasion and the like are avoided.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a counterweight displacement device and a working machine.
Background
The counterweight of the engineering machinery is a part which is arranged at the lower end of the turntable winding box to keep the moment balance of the whole machine and prevent the engineering machinery from overturning. At present, the position of the counterweight arranged on the hoisting box is relatively fixed, but the lifting performance of the engineering machinery is limited by the fixed position of the counterweight, the engineering machinery needs larger anti-overturning moment and can be realized only by increasing the weight of the counterweight, so that the cost is increased, and meanwhile, the weight of the whole vehicle is increased, so that the engineering machinery does not meet the requirement of road-up.
Therefore, in the prior art, the stability of the whole machine is improved by adjusting the position of the counterweight, for example, in one mode, the movement of the counterweight can be realized by adjusting the position of the hanging lug on the hoisting box, then the counterweight is lifted to the position of the hanging lug, so that the counterweight is connected with the hanging lug, and the position of the counterweight is adjusted, thus the counterweight is not easy to align in the connecting process with the hanging lug or a lifting oil cylinder, and the position of the counterweight needs to be corrected for multiple times, and the counterweight is not easy to move and is inconvenient to operate because of the heavy weight; or in another mode, the balance weight is directly connected with the displacement driving piece such as the oil cylinder and the like, and the balance weight is moved by the expansion and contraction of the displacement driving piece such as the oil cylinder and the like, so that the balance weight position is adjusted, and the oil cylinder and the like cannot adjust the position of the balance weight due to the fact that the balance weight is large and the oil cylinder and the like are subjected to overlarge stress and are easy to break down; in addition, the driving parts such as the lifting oil cylinder are arranged on the winch box, an oil way for controlling the driving parts is arranged on the winch box, and the driving parts such as the oil cylinder cannot be used due to the fact that the oil way is easily worn in the rotation process of the winch box, so that the counterweight displacement cannot be realized. Therefore, in the existing mode of improving the stability of the whole machine by adjusting the position of the counterweight, the counterweight and the hanging lugs are not easy to align, the operation is inconvenient, or the position-changing driving piece is easy to fail, so that the counterweight position change can not be realized.
Disclosure of Invention
The invention provides a counterweight shifting device and an operation machine, which are used for solving the defects that in the prior art, in a mode of improving the stability of a whole machine by adjusting the position of a counterweight, the counterweight and a hanging lug are not easy to align, the operation is inconvenient, or a shifting driving piece is easy to fail and the counterweight shifting cannot be realized.
The invention provides a counterweight position changing device, comprising:
the lug plate is in sliding connection with a winch box of the working machine and is used for connecting a counterweight;
the first driving mechanism is used for driving the lug plate to horizontally move along the direction approaching to or separating from the turntable of the working machine;
a first detecting element for detecting a horizontal position of the ear plate;
a slip plate for supporting the weight;
the second driving mechanism is used for driving the sliding plate to move, and the moving path of the sliding plate is consistent with the moving path of the lug plate;
the lifting driving mechanism is arranged on the frame of the working machine and used for driving the sliding plate to lift;
and the controller is in communication connection with the first driving mechanism, the first detection element and the second driving mechanism, and respectively controls the first driving mechanism and the second driving mechanism to stop according to detection signals of the first detection element so as to enable the horizontal positions of the lug plate and the counterweight to be matched.
According to the invention, the lifting driving mechanism comprises:
the sliding plate is in sliding connection with the supporting plate;
and the lifting driving piece is arranged on the frame and used for driving the supporting plate to lift.
According to the invention, the counterweight displacement device further comprises:
and the controller is in communication connection with the controller, and controls the brake to act according to the detection signal of the first detection element so as to enable the sliding plate and the supporting plate to be relatively fixed.
According to the present invention, there is provided a weight displacement device, the brake comprising:
a friction plate provided on one of the support plate and the slip plate;
a piston provided on the other of the support plate and the slip plate;
and the brake driving assembly is used for driving the piston to be close to or far away from the friction plate, the brake driving assembly is in communication connection with the controller, and the controller controls the brake driving assembly to act according to the detection signal of the first detection element so as to enable the piston to be in contact with the friction plate.
According to the present invention, there is provided a weight shifting device, the brake driving assembly comprising:
a linear drive for driving the piston between a first vertical position and a second vertical position, wherein:
when the piston is positioned at the first vertical position, a gap exists between the piston and the friction plate; when the piston is in the second vertical position, the piston is in contact with the friction plate.
According to the present invention, there is provided a weight shifting device, the brake driving assembly further comprising:
the elastic piece, the both ends of elastic piece respectively with the slip board with the piston links to each other or offsets, wherein:
when the piston is positioned at the first vertical position, the elastic piece is in a compressed state;
when the piston is positioned at the second vertical position, the elastic piece is in a unfolding state and enables the piston to be abutted against the friction plate.
According to the present invention, there is provided a counterweight displacement device, the first driving mechanism includes:
the screw is arranged on the winding box, and the lug plate is in threaded connection with the screw;
the driving motor is used for driving the screw to rotate, and the first detection element is used for detecting the rotation number of turns of the driving motor.
According to the counterweight displacement device provided by the invention, the rollers are arranged between the supporting plate and the sliding plate.
According to the counterweight displacement device provided by the invention, the two ends of the supporting plate are respectively provided with the first limiting plate and the second limiting plate, and the first limiting plate and the second limiting plate are respectively used for blocking the sliding plate.
The invention also provides a working machine comprising the counterweight displacement device according to any one of the above.
The invention provides a counterweight shifting device and a working machine, wherein the counterweight shifting device comprises an ear plate, a first driving mechanism, a first detection element, a sliding plate, a second driving mechanism, a lifting driving mechanism and a controller, wherein the ear plate is in sliding connection with a winch box of the working machine and can be used for being connected with a counterweight; the lifting drive mechanism is provided on the frame of the work machine, and the lifting drive mechanism can drive the slide plate to lift so as to be able to lift the counterweight. The controller is in communication with the first drive mechanism, the first detection element, and the second drive mechanism, respectively. And the controller controls the first driving mechanism and the second driving mechanism to stop according to the detection signals of the first detection element, so that the ear plate and the counterweight stop moving, the horizontal positions of the ear plate and the counterweight are matched, and the ear plate and the counterweight can be accurately aligned.
The first detection element is used for detecting the moving position of the ear plate in real time, the controller can control the starting and stopping of the first driving mechanism according to the detection signal of the first detection element, the ear plate can be ensured to be fixed at a required position, and the starting and stopping of the second driving mechanism are controlled, so that the counterweight can be stopped at a horizontal position opposite to the ear plate, and the counterweight can be accurately aligned with the ear plate; and the lifting drive mechanism drives the sliding plate to lift, so that the lifting of the counterweight can be realized, the counterweight can be moved to a height capable of being connected with the lug plate, and the counterweight and the lug plate are accurately aligned.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram of the positional relationship of a counterweight displacement device provided by the present invention on a work machine;
fig. 2 is a schematic view of the ear plate according to the present invention after being connected to a counterweight (schematic view after displacement);
FIG. 3 is a perspective view of the connection between the lifting drive mechanism and the sliding plate provided by the invention;
FIG. 4 is one of the cross-sectional views of the connection of the lift drive mechanism and the skid plate provided by the present invention;
FIG. 5 is a second cross-sectional view of the connection between the lift drive mechanism and the slip plate provided by the present invention.
Reference numerals:
1. a frame; 2. a winding box; 3. a counterweight;
4. ear plates; 5. a screw; 6. a transmission piece connecting plate;
7. a lifting driving member; 8. a slip plate; 9. a support plate;
10. positioning bolts; 11. a first limiting plate; 12. a second limiting plate;
13. a buffer member; 14. a friction plate; 15. a piston;
16. a pin shaft; 17. an elastic member; 18. a limit baffle;
19. a roller.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The weight shifting device and the working machine of the present invention will be described below with reference to fig. 1 to 5.
As shown in fig. 1, the counterweight displacement device provided by the invention can comprise an ear plate 4, a first driving mechanism, a first detection element, a sliding plate 8, a second driving mechanism, a lifting driving mechanism and a controller.
Wherein the lug plate 4 can be slidingly connected with the hoisting box 2 of the work machine and the lug plate 4 can be used for connecting the counterweight 3.
The first drive mechanism may be used to drive the lug plate 4 to move horizontally in a direction toward or away from the work machine turntable.
The first detection element may be used to detect the horizontal position of the ear plate 4 in order for the operator to adjust the horizontal position of the ear plate 4.
The sliding plate 8 may be used to support the counterweight 3, and the second driving mechanism may be used to drive the sliding plate 8 to move, where the movement path of the sliding plate 8 may coincide with the movement path of the ear plate 4. In this way, the horizontal positions of the counterweight 3 and the ear plate 4 can be adapted so that the counterweight 3 and the ear plate 4 can be accurately aligned.
The lifting drive mechanism may be provided on the frame 1 of the working machine, and the lifting drive mechanism may drive the slide plate 8 to lift so as to be able to lift the counterweight 3. In this way, the lifting of the counterweight 3 can be achieved by the lifting drive mechanism so that the counterweight 3 can be connected to the lug plate 4 and thus to the hoisting box 2.
The controller may be communicatively coupled to the first drive mechanism, the first detection element, and the second drive mechanism, respectively. And the controller can control the first driving mechanism and the second driving mechanism to stop according to the detection signal of the first detection element, so that the ear plate 4 and the counterweight 3 stop moving, the horizontal positions of the ear plate 4 and the counterweight 3 are matched, and the ear plate 4 and the counterweight 3 can be accurately aligned.
The arrangement can detect the moving position of the ear plate 4 in real time through the first detection element, the controller can control the starting and stopping of the first driving mechanism according to the detection signal of the first detection element, can ensure that the ear plate 4 is fixed at a required position, and can control the starting and stopping of the second driving mechanism, so that the counterweight 3 can stop at a horizontal position opposite to the ear plate 4, and the counterweight 3 can be accurately aligned with the ear plate 4; and lifting drive mechanism drive slip board 8 goes up and down, can realize the lift of counter weight 3, make counter weight 3 can remove to the height that can be connected with otic placode 4, realize the accurate counterpoint of counter weight 3 and otic placode 4, in addition, lifting drive mechanism sets up on the frame 1 of operating machine, on the one hand can give frame 1 with the weight part of counter weight 3 that receives, on the other hand need not to rotate along with hoist box 2 synchronization, there is not phenomenon such as oil circuit wearing and tearing, lifting drive mechanism is difficult for breaking down, lifting drive mechanism's life has been improved.
In an alternative embodiment, the counterweight displacement device may include two lugs 4 and two first driving mechanisms, where the two lugs 4 may be respectively slidably disposed on two sides of the winding box, and the two first driving mechanisms respectively drive the two lugs 4 to move.
In an alternative embodiment, the weight shifting device may further include a position input module, where the position input module is in communication with the controller, and an operator may input, through the position input module, a preset position to which the ear plate 4 needs to reach, and the controller determines, according to a detection signal of the first detection element, whether the ear plate 4 moves to the preset position, so as to control the first driving mechanism and the second driving mechanism according to a determination result.
Here, the controller includes a comparison module, and the comparison module is used for comparing the preset position of input and the position that the first detecting element detected, and when the comparison module judges that the position of the otic placode 4 that the first detecting element detected is consistent with the preset position, the controller controls the first actuating mechanism to stop, makes the otic placode 4 fix in the preset position to control the second actuating mechanism to stop, makes the sliding plate 8 fix in the position relative with the preset position, makes counterweight 3 and otic placode 4 can accurate counterpoint.
Thus, the counterweight 3 can be adjusted to any horizontal position, and the counterweight 3 and the ear plate 4 can be accurately aligned.
In an alternative embodiment of the invention, the weight displacing device may further comprise a second detecting element, which may be used for detecting the horizontal position of the sliding plate 8, the second detecting element may be in communication with the controller, and the controller may be capable of controlling the start and stop of the second driving mechanism according to the detection signal of the second detecting element, so as to adjust the position of the sliding plate 8, i.e. the horizontal position of the weight 3.
Wherein, when the horizontal position of the sliding plate 8 detected by the second detecting element matches with the horizontal position of the ear plate 4 detected by the first detecting element, the controller controls the second driving mechanism to stop moving the sliding plate 8, thereby stopping moving the counterweight 3. Like this, detect the position of sliding plate 8 through the second detecting element, can avoid counterweight 3 to remove too big or remove too little and can't counterpoint with otic placode 4, can guarantee that counterweight 3 on sliding plate 8 counterpoint with otic placode 4 accuracy, improve counterpoint precision to counterweight 3 can be connected with otic placode 4 accurately of being convenient for.
In an alternative embodiment of the invention, the lifting drive mechanism may comprise a support plate 9 and a lifting drive 7, the skid plate 8 may be slidably connected to the support plate 9, the lifting drive 7 may be provided on the frame 1 of the work machine, and the lifting drive 7 may be used to drive the support plate 9 to lift to drive the skid plate 8 to lift, thereby driving the counterweight 3 to lift. In this way, both the horizontal position of the counterweight 3 and the vertical position of the counterweight 3 can be adjusted.
In this embodiment, the lifting drive 7 may be an oil cylinder or an air cylinder or a linear drive.
In an alternative embodiment, the lifting drive may comprise at least two lifting drives 7, each lifting drive 7 being evenly distributed under the support plate 9. Thus, the stability of the counterweight 3 in the lifting process can be improved, the external force applied to each lifting driving piece 7 can be reduced, and the service life of the lifting driving piece 7 can be prolonged.
In an alternative embodiment of the present invention, the weight shifting device may further include a brake, and the brake may be communicatively connected to the controller, and the controller may control the brake to act according to the detection signal of the first detection element, so that the sliding plate 8 and the supporting plate 9 are relatively fixed. In this way, the sliding plate 8 can be further stopped, so that the counterweight 3 is stopped, so as to ensure that the counterweight 3 can be accurately aligned with the ear plate 4.
In this embodiment, when the horizontal position of the sliding plate 8 detected by the second detecting element coincides with the horizontal position of the ear plate 4 detected by the first detecting element, the controller controls the brake to act so that the sliding plate 8 and the support plate 9 are relatively fixed.
In an alternative embodiment, the brake may include a friction plate 14, a piston 15, and a brake driving assembly, the friction plate 14 may be disposed on one of the support plate 9 and the slip plate 8, the piston 15 may be disposed on the other of the support plate 9 and the slip plate 8, the brake driving assembly may be used to drive the piston 15 toward or away from the friction plate 14, and the brake driving assembly may be communicatively connected to a controller, and the controller may control the brake driving assembly to act according to the detection signal of the first detection element so that the piston 15 contacts the friction plate 14, thereby achieving braking of the slip plate 8, and thus stopping the counterweight 3 at a desired position.
In an alternative embodiment, the brake actuation assembly may include a linear actuator that may be used to actuate the piston 15 between the first and second vertical positions.
Wherein when the piston 15 is in the first vertical position, a gap exists between the piston 15 and the friction plate 14. At this time, the brake does not act on the slip plate 8.
When the piston 15 is in the second vertical position, the piston 15 is in contact with the friction plate 14, at which point the brake can act on the slide plate 8.
In an alternative embodiment, the brake actuating assembly may further comprise an elastic member 17, and both ends of the elastic member 17 may be connected to or abutted against the sliding plate 8 and the piston 15, respectively.
Wherein, when the piston 15 is located at the first vertical position, the elastic member 17 is in a compressed state, and at this time, the elastic member 17 does not exert a squeezing action on the piston 15.
When the piston 15 is in the second vertical position, the elastic member 17 is in the expanded state, and the elastic member 17 can bring the piston 15 into abutment with the friction plate 14. In this way, the friction force between the piston 15 and the friction plate 14 can be increased, so that the braking performance can be improved, the counterweight 3 can be quickly and accurately stopped at a required position, and the accuracy of the alignment of the counterweight 3 and the ear plate 4 can be improved; and the relative braking of the piston 15 and the friction plate 14 is realized through the elastic piece 17, so that the damage caused by overlarge stress of the linear driving piece due to overlarge inertia of the counterweight 3 can be avoided.
In an alternative embodiment, the linear drive may be connected to the piston 15 by a pin 16. Specifically, a clamping groove may be disposed on the piston 15, the bottom end of the pin 16 is located in the clamping groove and is clamped with the piston 15, and the top end of the pin 16 may be connected with the linear driving member. In this way, the linear drive can be moved vertically by the drive pin 16 to effect vertical movement of the piston 15.
Here, the linear driving member may be a linear motor. The elastic member 17 is a spring.
In an alternative embodiment, the piston 15 may be provided with an elastic member mounting groove, the elastic member is located in the elastic member mounting groove, the notch of the elastic member 17 mounting groove is disposed toward the sliding plate 8, and the bottom end of the elastic member 17 may be connected to or abutted against the groove bottom of the elastic member mounting groove.
In this embodiment, the brake driving assembly may include at least two elastic members 17, and each elastic member 17 is disposed at a circumferential side of the pin 16, so that both braking performance of the brake and stability of movement of the piston 15 may be improved.
In an alternative embodiment, the bottom end of the sliding plate 8 may be further provided with two limit stops 18, the piston 15 may be located between the two limit stops 18, and the piston 15 may be slidably connected with the limit stops 18. In this way, the two limit stops 18 can limit the piston 15, so that the piston 15 can move up and down, avoiding the occurrence of offset.
In an alternative embodiment of the present invention, the first driving mechanism may include a screw 5 and a driving motor, the screw 5 may be provided on the winding box 2, and the lug plate 4 may be screw-coupled with the screw 5, and the movement of the lug plate 4 may be achieved by rotating the screw 5. A drive motor may be used to drive the rotation of the screw 5 to enable movement of the ear plate 4.
Here, the first detecting element may be used to detect the number of turns of the driving motor to calculate the moving stroke of the ear plate 4 from the number of turns of the driving motor, so that the horizontal position of the ear plate 4 can be determined.
In particular, the first detecting element may be a motor rotation speed measuring instrument, by measuring the rotation speed of the driving motor, the movement stroke of the ear plate 4 is determined.
In an alternative embodiment, the first driving mechanism may further include two transmission connection plates 6, the two transmission connection plates 6 are respectively disposed at a first end and a second end of the winding box 2, and both ends of the screw 5 may be respectively rotatably disposed on the two transmission connection plates 6 through bearings.
Here, the first end of the winding case 2 may be an end close to the turn table, and the second end of the winding case 2 may be an end far from the turn table.
In an alternative embodiment of the present invention, the two ends of the supporting plate 9 may be respectively provided with a first limiting plate 11 and a second limiting plate 12, and the first limiting plate 11 and the second limiting plate 12 may be respectively used for blocking the sliding plate 8 so as to prevent the sliding plate 8 from slipping during the sliding process.
Specifically, a first end of the support plate 9 may be provided with a first limiting plate 11, and a second end of the support plate 9 may be provided with a second limiting plate 12.
In an alternative embodiment, the end surface of the second limiting plate 12 facing the first limiting plate 11 may be provided with a buffer member 13, and when the counterweight 3 moves to the first limiting plate 11, the buffer member 13 can stably stop the counterweight 3, so as to prevent impact.
In an alternative embodiment, a second detection element may be provided on the end face of the second limiting plate 12 facing the first limiting plate 11 to be able to detect the horizontal position of the sliding plate 8.
Here, the second detecting element may be a distance sensor that may be used to detect a distance between the sliding plate 8 and the second limiting plate 12, so as to be able to derive a horizontal position of the sliding plate 8 according to a change in the distance between the sliding plate 8 and the second limiting plate 12, thereby determining the horizontal position of the counterweight 3.
In an alternative embodiment, a second driving mechanism may be provided on the first limiting plate 11, and the second driving mechanism may be a cylinder or an oil cylinder or an electric cylinder or a linear driver.
In an alternative embodiment of the present invention, a roller 19 may be disposed between the sliding plate 8 and the supporting plate 9, so that not only the sliding connection between the sliding plate 8 and the supporting plate 9 may be realized, but also the friction between the sliding plate 8 and the supporting plate 9 may be reduced, so that the sliding plate 8 moves more smoothly, and the horizontal position of the counterweight 3 may be adjusted more easily.
Here, the rollers 19 may be rotatably disposed under the sliding plate 8 by a coupling frame so as to drive the sliding plate 8 to move along the support plate 9.
In an alternative embodiment of the present invention, the weight shifting device may further include a first fixing member for locking the lug plate 4, the first fixing member being for fixedly connecting the lug plate 4 and the winding box 2.
Specifically, the ear plate 4 may be provided with at least one fixing hole, and the first fixing member may be connected to the winding box 2 through the fixing hole.
Here, the first fixing member may be a bolt, and the bolt may be screwed with the winding case 2 through the fixing hole. Thus, after the lug plate 4 moves to the required position, the lug plate 4 can be fixed on the winding box 2 through bolts, which is beneficial to improving the stability of the counterweight 3.
In an alternative embodiment of the invention, the ear plate 4 may be provided with a plurality of pin holes, which may be distributed in the vertical direction.
Here, the weight shifting device may further include a second fixing member that may be used to connect the weight 3 and the pin hole so that the weight 3 may be mounted on the ear plate 4.
Specifically, through the connection of the second mounting and the pinhole of different positions, can adjust the vertical position of counter weight 3 to adjust the height of counter weight 3, thereby reach the purpose of shifting.
In an alternative embodiment, the counterweight displacing device may further include a vertical position detecting element, where the vertical position detecting element may be used to detect the vertical position of the counterweight 3, and the vertical position detecting element may be in communication with a controller, where the controller may control the start and stop of the lifting driving mechanism according to a detection signal of the vertical position detecting element, so that the vertical position of the counterweight 3 may be adjusted.
Here, the vertical position detecting element may be a distance sensor that may be provided on the frame 1 of the work machine, the distance sensor being capable of detecting the vertical movement distance of the support plate 9.
In an alternative embodiment of the invention, the slip plate 8 is provided with connection holes for connecting the weights 3.
Specifically, the counterweight 3 may be connected to the connection hole on the sliding plate 8 through a third fixing member, so that the counterweight 3 is fixed on the sliding plate 8. In this way, the counterweight 3 and the slip plate 8 do not move relative to each other when the horizontal and vertical positions of the counterweight 3 are adjusted.
Here, the third fixing member may be the set screw 10.
The counterweight 3 is displaced by the counterweight displacement device in the following manner:
the lug plate 4 on the winding box 2 is shifted: the screw 5 is driven to rotate by the driving motor to drive the lug plate 4 to move, and the first detection element detects the rotation number of the driving motor to obtain the moving distance of the lug plate 4, so that the horizontal position of the lug plate 4 can be determined; after the lug plate 4 moves to the designated position, the lug plate 4 is connected with the winding box 2 through the first fixing piece, and the position change of the lug plate 4 is completed.
And the counterweight 3 is shifted: firstly, placing the counterweight 3 on the sliding plate 8 through other machines such as a crane and the like, and fixing the counterweight 3 on the sliding plate 8 through a positioning bolt 10; then the second driving mechanism drives the sliding plate 8 to move, when the second detecting element detects that the horizontal position of the sliding plate 8 corresponds to the position of the lug plate 4 detected by the first detecting element, the controller controls the second driving mechanism to stop, and the controller controls the linear driving piece of the brake to drive the piston 15 to move to the second position, so that the elastic piece 17 of the brake tightly props the piston 15 and the friction plate 14, the braking of the sliding plate 8 is realized, and the sliding plate 8 is kept at a specified position; the lifting driving piece 7 drives the supporting plate 9 to move upwards, and when the vertical detection element detects that the counterweight 3 moves to the required height, the controller controls the lifting driving piece 7 to stop moving so as to keep the counterweight 3 at the designated height; finally, the counterweight 3 is connected with the ear plate 4 through the second fixing piece, the counterweight 3 is fixedly installed on the ear plate 4, the positioning bolt 10 is detached, the counterweight 3 is separated from the sliding plate 8, and the controller controls the lifting driving piece 7 to drive the supporting plate 9 and the sliding plate 8 to move downwards to the initial position, so that the deflection of the counterweight 3 is completed.
The working machine provided by the invention will be described below, and the working machine described below and the counterweight displacement device described above can be referred to correspondingly.
The invention also provides a working machine comprising the counterweight displacement device according to any one of the embodiments.
The beneficial effects achieved by the working machine provided by the invention are consistent with those achieved by the counterweight displacement device provided by the invention, and are not repeated here.
The work machine may be a crane, an excavator, or other construction machines.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A weight deflection device, comprising:
the lug plate is in sliding connection with a winch box of the working machine and is used for connecting a counterweight;
the first driving mechanism is used for driving the lug plate to horizontally move along the direction approaching to or separating from the turntable of the working machine;
a first detecting element for detecting a horizontal position of the ear plate;
a slip plate for supporting the weight;
the second driving mechanism is used for driving the sliding plate to move, and the moving path of the sliding plate is consistent with the moving path of the lug plate;
the lifting driving mechanism is arranged on the frame of the working machine and used for driving the sliding plate to lift;
and the controller is in communication connection with the first driving mechanism, the first detection element and the second driving mechanism, and respectively controls the first driving mechanism and the second driving mechanism to stop according to detection signals of the first detection element so as to enable the horizontal positions of the lug plate and the counterweight to be matched.
2. A weight displacement device according to claim 1, wherein the lifting drive mechanism comprises:
the sliding plate is in sliding connection with the supporting plate;
and the lifting driving piece is arranged on the frame and used for driving the supporting plate to lift.
3. A weight deflection apparatus according to claim 2, further comprising:
and the controller is in communication connection with the controller, and controls the brake to act according to the detection signal of the first detection element so as to enable the sliding plate and the supporting plate to be relatively fixed.
4. A weight deflection apparatus according to claim 3 wherein the brake comprises:
a friction plate provided on one of the support plate and the slip plate;
a piston provided on the other of the support plate and the slip plate;
and the brake driving assembly is used for driving the piston to be close to or far away from the friction plate, the brake driving assembly is in communication connection with the controller, and the controller controls the brake driving assembly to act according to the detection signal of the first detection element so as to enable the piston to be in contact with the friction plate.
5. A weight deflection apparatus according to claim 4 wherein the brake drive assembly comprises:
a linear drive for driving the piston between a first vertical position and a second vertical position, wherein:
when the piston is positioned at the first vertical position, a gap exists between the piston and the friction plate; when the piston is in the second vertical position, the piston is in contact with the friction plate.
6. A weight deflection apparatus according to claim 5 wherein the brake drive assembly further comprises:
the elastic piece, the both ends of elastic piece respectively with the slip board with the piston links to each other or offsets, wherein:
when the piston is positioned at the first vertical position, the elastic piece is in a compressed state;
when the piston is positioned at the second vertical position, the elastic piece is in a unfolding state and enables the piston to be abutted against the friction plate.
7. A weight displacement device according to claim 1, wherein the first driving mechanism comprises:
the screw is arranged on the winding box, and the lug plate is in threaded connection with the screw;
the driving motor is used for driving the screw to rotate, and the first detection element is used for detecting the rotation number of turns of the driving motor.
8. A weight deflection apparatus according to claim 2 wherein rollers are provided between the support plate and the slip plate.
9. The counterweight displacement device according to claim 2, wherein a first limiting plate and a second limiting plate are respectively arranged at two ends of the supporting plate, and the first limiting plate and the second limiting plate are respectively used for blocking the sliding plate.
10. A working machine comprising a weight displacement device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310324569.2A CN116177423A (en) | 2023-03-29 | 2023-03-29 | Counterweight displacement device and working machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310324569.2A CN116177423A (en) | 2023-03-29 | 2023-03-29 | Counterweight displacement device and working machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116177423A true CN116177423A (en) | 2023-05-30 |
Family
ID=86450783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310324569.2A Pending CN116177423A (en) | 2023-03-29 | 2023-03-29 | Counterweight displacement device and working machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116177423A (en) |
-
2023
- 2023-03-29 CN CN202310324569.2A patent/CN116177423A/en active Pending
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