CN112938793A - Counterweight device for construction machinery - Google Patents
Counterweight device for construction machinery Download PDFInfo
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- CN112938793A CN112938793A CN202110218109.2A CN202110218109A CN112938793A CN 112938793 A CN112938793 A CN 112938793A CN 202110218109 A CN202110218109 A CN 202110218109A CN 112938793 A CN112938793 A CN 112938793A
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- 238000010276 construction Methods 0.000 title claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 44
- 238000005096 rolling process Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004566 building material Substances 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
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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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- 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
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- General Engineering & Computer Science (AREA)
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- Aviation & Aerospace Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to the technical field of mechanical accessories and discloses a counterweight device for construction machinery, which comprises a mounting plate, wherein a counterweight box is fixedly connected to the right side of the mounting plate, a rectangular opening is formed in one side of the counterweight box, a counterweight block is connected in the rectangular opening, two support frames are fixedly connected to one side of the mounting plate, a support mechanism is commonly connected to the opposite sides of the two support frames, a bearing plate is transversely arranged on one side of the mounting plate, the side wall of the bearing plate is connected with the support mechanism, two strip-shaped mounting holes are symmetrically formed in the side wall of the mounting plate, and hydraulic cylinders are obliquely arranged in the two strip. This a counter weight device for building machine can effectively adjust the position of building machine self-weight body to adorn the balancing weight assembly convenience speed also fast outward, can also utilize and adorn the balancing weight effectively to reduce building machine's focus outward, increase the security of building machine during operation.
Description
Technical Field
The invention relates to the technical field of mechanical accessories, in particular to a counterweight device for construction machinery.
Background
The counterweight body is mounted on the rear end of the body frame of the construction machine (e.g., crawler crane) so as to achieve a balanced distribution of weight during operation, and when the crawler crane is transported on a trailer, it may be necessary to detach the counterweight body from the crawler crane due to restrictions such as the maximum load capacity of the trailer, in which case the dismounting operation of the counterweight body must be performed, and the fitting weight of the counterweight body can be fitted with the weight of the hoisted object, enabling free fitting within the maximum hoisting weighing range, i.e., reducing the transportation cost of transporting the counterweight body.
At present, although the counter weight body can directly be equipped on the body frame of construction machinery equipment, but the structure of the body frame on own counter weight body and adorn the balancing weight outward is all relatively more fixed, and is nearer apart from the distance of construction machinery body frame, consequently need use small-size hoisting equipment to install when using and adorn the balancing weight outward, the speed of hoist and mount building material has been reduced, and adorn the balancing weight outward and install the back on body frame from the counter weight body, lead to construction machinery's whole focus higher, the security is relatively poor during the handling.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a counterweight device for construction machinery, which has the advantages that the position of the self-provided counterweight body of the construction machinery is adjustable, the assembly of the externally-mounted counterweight is convenient and fast, the gravity center of the construction machinery can be effectively reduced after the counterweight device is installed, the safety of the construction machinery during working is improved, and the like, and the problems that the structure of the self-provided counterweight body of the construction machinery and the structure of the externally-mounted counterweight body are relatively fixed and are relatively close to the main body frame of the construction machinery, so that the externally-mounted counterweight body needs to be installed by using small-sized hoisting equipment during use, the speed of hoisting construction materials is reduced, and the integral gravity center of the construction machinery is higher and the safety is poorer during hoisting after the externally-mounted counterweight body and the self-.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a counterweight device for construction machinery comprises a mounting plate, wherein a counterweight box is fixedly connected to the right side of the mounting plate, a rectangular opening is formed in one side of the counterweight box, a counterweight block is connected in the rectangular opening, two support frames are fixedly connected to one side of the mounting plate, a support mechanism is connected to one side of the two support frames, a bearing plate is transversely arranged on one side of the mounting plate, the side wall of the bearing plate is connected with the support mechanism, two strip-shaped mounting holes are symmetrically formed in the side wall of the mounting plate, hydraulic cylinders are obliquely arranged in the two strip-shaped mounting holes, two opposite sides of the strip-shaped mounting holes are respectively and rotatably connected with a pin through a first rolling bearing, one ends of the two pins opposite to each other are respectively and fixedly connected with a cylinder body of the hydraulic cylinder, the tail ends of piston rods of the hydraulic cylinders, the supporting block is sleeved in the rectangular through hole in a sliding mode, one side of the supporting block is fixedly connected with the center of the lower end of the bearing plate, the rear side of the mounting plate is fixedly connected with a rectangular frame, a limiting mechanism is connected in the rectangular frame and connected with the side wall of the supporting block, and connecting pieces are fixedly connected to four corners of the left side of the mounting plate.
Preferably, the support mechanism comprises two support shafts which are parallel to each other, two ends of each support shaft are respectively and rotatably connected with one side of each support frame opposite to the corresponding support frame through second rolling bearings, two ends of one support shaft penetrate through the second rolling bearings and are fixedly connected with first support rods, two ends of the other support shaft penetrate through the second rolling bearings and are fixedly connected with second support rods, the first support rods and the second support rods are parallel to each other, the side wall of the bearing plate is fixedly connected with two connecting shafts through holes, two ends of one connecting shaft are respectively and rotatably connected with the rod walls of the two first support rods through third rolling bearings, two ends of the other connecting shaft are respectively and rotatably connected with the rod walls of the two second support rods through fourth rolling bearings, a transmission shaft is arranged on one side of the mounting plate, and the shaft wall of the transmission shaft is rotatably connected with the rod walls of the two first support rods through shaft sleeves, the sliding sleeve is sleeved on the shaft wall of the transmission shaft in a sliding mode, and one side of the sliding sleeve is fixedly connected with the tail end of a piston rod of the hydraulic cylinder.
Preferably, two sleeve pipes, two are cup jointed in the slip on the axle wall of transmission shaft equal fixedly connected with slope setting's transfer line, two on the sheathed tube pipe wall the transfer line is kept away from sheathed tube one end and has all been seted up the opening, be connected with the connecting block through rotation of axes in the opening, two right angle breach, two have been seted up to the upper end symmetry of weight box equal sliding connection has the fixed block in the right angle breach, the one end of fixed block pass the right angle breach and with the lateral wall fixed connection of balancing weight, the other end of fixed block and the lower extreme fixed connection of connecting block.
Preferably, the limiting mechanism comprises two gears which are meshed with each other, two positioning shafts are vertically arranged in the rectangular frame, the shaft walls of the two positioning shafts are fixedly connected with the central holes of the gears, both ends of the positioning shaft are rotatably connected with the inner walls of two opposite sides of the rectangular frame through sealing bearings, the two opposite sides of the rectangular through hole are both provided with holding tanks, one side of each holding tank is communicated with the left side of the mounting plate, one side of the holding tank is provided with a groove, a positioning pin is connected in the groove in a sliding manner, the upper end of the positioning pin is fixedly connected with a transmission arm, and the transmission arm is positioned in the accommodating groove, one end of the transmission arm is fixedly connected with the shaft wall of the positioning shaft, the upper end of the supporting block is provided with a positioning groove, the positioning groove is matched with the positioning pin, the upper side of the rectangular frame is provided with a worm wheel, and the upper end of the positioning shaft penetrates through the sealing bearing and is fixedly connected with the center of the lower side of the worm wheel.
Preferably, the upper end of the rectangular frame is fixedly connected with two mounting blocks, one opposite sides of the two mounting blocks are rotatably connected with a worm through ball bearings, the worm is meshed with one side of a worm wheel, and one end of the worm penetrates through a ball shaft and is fixedly connected with a hand wheel.
Preferably, one side of the support frame is fixedly connected with a positioning block, the upper end of the positioning block is transversely fixedly connected with a positioning plate, the upper end of the support frame is fixedly connected with a connecting block with a triangular structure, and one side of the connecting block is fixedly connected with the side wall of the mounting plate.
(III) advantageous effects
Compared with the prior art, the invention provides a counterweight device for construction machinery, which has the following beneficial effects:
1. when the counterweight device for the building machinery is used, the connecting piece is installed on a main body frame of the building machinery by using the high-strength bolt, the counterweight box and the counterweight block which are arranged on the building machinery are installed at the moment, an external counterweight block (not shown in the figure) is not needed when light building materials are lifted, when the external counterweight block is needed, the hydraulic cylinder is started to work, the hydraulic cylinder pushes the supporting mechanism by using the piston rod when working, when the structure of the supporting mechanism is changed, the bearing plate keeps a horizontal state, the height of the position of the bearing plate in the vertical direction is reduced and is far away from the main body frame of the building machinery, when the crawler of the building machinery is taken as a fulcrum, the counterweight effect of the counterweight block is adjusted by using the lever principle to realize that the counterweight block is far away from the fulcrum, when the external counterweight block is installed on the bearing plate, the position of the external counterweight, and the position of the lifting device is relatively low, so that the gravity center height of the construction machine can be relatively reduced while the lifting device plays a role of a counterweight, and the stability of the construction machine during lifting can be improved.
2. When the support mechanism is used, the hydraulic cylinder is started to push the sliding sleeve to stress the transmission shaft, the transmission shaft pushes the first support rod to swing around the support shaft under stress, the first support rod pushes the bearing plate to stress through the connecting shaft when swinging, the second support rod is pushed to swing around the support shaft when stress is applied to the bearing plate, the first support rod and the second support rod with the same height can be used for realizing stable movement of the bearing plate, the bearing plate is contacted with the positioning plate when moving, the bearing plate can be supported by utilizing the support force of the positioning block, the bearing plate is matched with the first support rod and the second support rod to reduce the acting force acting on the hydraulic cylinder when an external counterweight block is arranged on the bearing plate, when the transmission shaft on the first support rod moves, the transmission shaft does circular motion relative to the support shaft, and drives the sleeve to extrude the transmission shaft when the transmission shaft moves, the transfer line atress drives the connecting block and removes, it makes the balancing weight atress to drive the fixed block when the connecting block removes, roll-off weight box during the balancing weight atress, and then can make the mounted position of the body of the inherent counter weight on the construction machinery adjustable, realize changing the purpose of joining in marriage the effect, when the bearing plate is in the high order, first bracing piece and second bracing piece all are in relative negative angle with the support frame relatively, produce the skew relatively when supporting the bearing plate, make the bearing plate can extrude the mounting panel, and then can utilize the mounting panel to provide the holding power to the bearing plate, it provides the holding power to need not the pneumatic cylinder this moment, and then can alleviate the working strength of pneumatic cylinder.
3. When the bearing plate is reset to be in contact with the mounting plate, the supporting block on the bearing plate is inserted into the rectangular through hole, then the hand wheel is rotated by hands to rotate the worm, the worm rotates to drive the worm wheel to rotate, the worm wheel rotates to drive one positioning shaft to rotate, at the moment, the other positioning shaft synchronously and reversely rotates under the meshing transmission action of the two gears, the positioning shaft rotates to drive the transmission arm in the accommodating groove to move, when the transmission arm moves into the rectangular through hole from the accommodating groove, the positioning pin on the transmission arm moves into the positioning groove on the supporting block from the groove, the supporting block can be limited by the transmission arm and the positioning pin, the stability of the bearing plate is improved, the self-locking characteristic of the meshing of the worm wheel and the worm is utilized, the stable matching between the positioning pin and the positioning groove is realized, and the external counterweight block is installed by using the bearing plate, the hand wheel is directly operated reversely to rotate, so that the limiting mechanism can be unlocked in a reverse operation mode, and the use by a user is facilitated.
Drawings
Fig. 1 is a schematic structural view of a counterweight device for a construction machine according to the present invention;
fig. 2 is a schematic structural view of a counterweight device for a construction machine according to the present invention, illustrating a supporting mechanism of fig. 1;
fig. 3 is a schematic structural view of a mounting plate and a rectangular frame in fig. 1 of a counterweight device for a construction machine according to the present invention;
fig. 4 is a schematic structural view of a counterweight device for construction machinery according to the present invention, showing a mounting plate and a support block in fig. 1;
FIG. 5 is a left side view of the mounting plate and support block of FIG. 1 of a counterweight device for a construction machine according to the present invention;
fig. 6 is a schematic structural view of a counterweight device for construction machinery according to the present invention, and the limiting mechanism in fig. 3;
fig. 7 is a schematic structural view of a weight box and a weight block in fig. 1 of a weight device for a construction machine according to the present invention;
fig. 8 is an effect view of a counterweight device for construction machinery according to the present invention in use.
In the figure: 1. mounting a plate; 2. a bearing plate; 3. a second support bar; 4. positioning a plate; 5. a support frame; 6. a support shaft; 7. a balancing weight; 8. a weight box; 9. a connecting member; 10. a first support bar; 11. a strip-shaped mounting hole; 12. a rectangular through hole; 13. a hydraulic cylinder; 14. a drive shaft; 15. a sleeve; 16. a joining block; 17. a fixed block; 18. a transmission rod; 19. a sliding sleeve; 20. a connecting shaft; 21. positioning blocks; 22. a rectangular frame; 23. a gear; 24. a worm gear; 25. a worm; 26. a hand wheel; 27. positioning pins; 28. a drive arm; 29. a support block; 30. mounting blocks; 31. positioning the shaft; 32. connecting blocks; 33. a right-angle notch; 34. a groove; 35. positioning a groove; 36. and (6) accommodating the tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1 to 8, a counterweight device for construction machinery comprises a mounting plate 1, a counterweight box 8 is fixedly connected to the right side of the mounting plate 1, a rectangular opening is formed in one side of the counterweight box 8, a counterweight 7 is connected in the rectangular opening, two support frames 5 are fixedly connected to one side of the mounting plate 1, a support mechanism is commonly connected to the opposite sides of the two support frames 5, a bearing plate 2 is transversely arranged on one side of the mounting plate 1, the side wall of the bearing plate 2 is connected with the support mechanism, two strip-shaped mounting holes 11 are symmetrically formed in the side wall of the mounting plate 1, hydraulic cylinders 13 are obliquely arranged in the two strip-shaped mounting holes 11, pins are rotatably connected to the opposite sides of the strip-shaped mounting holes 11 through first rolling bearings, the opposite ends of the two pins are fixedly connected with cylinder bodies of the hydraulic cylinders 13, the tail ends of piston rods of the hydraulic, sliding sleeve has been connected supporting shoe 29 in the rectangle through-hole 12, one side of supporting shoe 29 and the lower extreme center department fixed connection of bearing plate 2, the rear side fixedly connected with rectangle frame 22 of mounting panel 1, rectangle frame 22 in-connection has stop gear, stop gear is connected with supporting shoe 29's lateral wall, the equal fixedly connected with connecting piece 9 in the left side four corners department of mounting panel 1, one side fixedly connected with locating piece 21 of support frame 5, the horizontal fixedly connected with locating plate 4 in upper end of locating piece 21, the upper end fixedly connected with triangle-shaped structure of support frame 5 links up piece 16, link up one side of piece 16 and mounting panel 1's lateral wall fixed connection.
When the invention is used, the connecting piece 9 is installed on the main body frame of the construction machine by using a high-strength bolt, the weight box 8 and the weight block 7 which are arranged on the construction machine are installed at the moment, when the light construction material is lifted, an external weight block (not shown in the figure) is not needed, when the external weight block is needed, the hydraulic cylinder 13 is started to work, the hydraulic cylinder 13 pushes the supporting mechanism by using the piston rod when working, when the structure of the supporting mechanism is changed, the bearing plate 2 keeps a horizontal state, the height of the position in the vertical direction is reduced, and the position is far away from the main body frame of the construction machine, when the crawler of the construction machine is taken as a fulcrum, the lever principle is used for realizing that the weight block is far away from the fulcrum to adjust the weight effect of the weight block, when the external weight block is installed on the bearing plate 2, the position, and the position of the lifting device is relatively low, so that the gravity center height of the construction machine can be relatively reduced while the lifting device plays a role of a counterweight, and the stability of the construction machine during lifting can be improved.
Example 2: the difference is based on example 1;
referring to fig. 1, 2, 7 and 8, the supporting mechanism includes two supporting shafts 6 parallel to each other, two ends of each supporting shaft 6 are rotatably connected to one side of each supporting frame 5 through second rolling bearings, two ends of one supporting shaft 6 pass through the second rolling bearings and are fixedly connected to a first supporting rod 10, two ends of the other supporting shaft 6 pass through the second rolling bearings and are fixedly connected to a second supporting rod 3, the first supporting rod 10 and the second supporting rod 3 are parallel to each other, two connecting shafts 20 are fixedly connected to the side walls of the bearing plate 2 through holes, two ends of one connecting shaft 20 are rotatably connected to the rod walls of the two first supporting rods 10 through third rolling bearings, two ends of the other connecting shaft 20 are rotatably connected to the rod walls of the two second supporting rods 3 through fourth rolling bearings, one side of the mounting plate 1 is provided with a transmission shaft 14, the axle wall of transmission shaft 14 rotates through the axle sleeve and is connected with the pole wall of two first bracing pieces 10, sliding sleeve 19 has been cup jointed in the slip on the axle wall of transmission shaft 14, one side of sliding sleeve 19 and the terminal fixed connection of piston rod of pneumatic cylinder 13, two sleeve pipes 15 have been cup jointed in the slip on the axle wall of transmission shaft 14, equal fixedly connected with slope setting's transfer line 18 on the pipe wall of two sleeve pipes 15, the opening has all been seted up to the one end that sleeve pipe 15 was kept away from to two transfer lines 18, rotate through the rotation axis in the opening and be connected with connecting block 32, two right angle breach 33 have been seted up to the upper end symmetry of weight box 8, equal sliding connection has fixed block 17 in two right angle breach 33, right angle breach 33 and the lateral wall fixed connection of balancing weight 7 are passed to the one.
When the support mechanism is used, the hydraulic cylinder 13 is started to push the sliding sleeve 19 to enable the transmission shaft 14 to bear force, the transmission shaft 14 pushes the first support rod 10 to bear force to swing around the support shaft 6 when bearing force is borne, the first support rod 10 pushes the bearing plate 2 to bear force through the connecting shaft 20 when swinging, the second support rod 3 is pushed to swing around the support shaft 6 when bearing plate 2 bears force, stable movement of the bearing plate 2 can be achieved through the first support rod 10 and the second support rod 3 with the same height, the bearing plate 2 is in contact with the positioning plate 4 when moving, the bearing plate 2 can be supported through the support force of the positioning block 21, the action force acting on the hydraulic cylinder 13 is relieved through cooperation with the first support rod 10 and the second support rod 3 when an external counterweight block is installed on the bearing plate 2, when the transmission shaft 14 on the first support rod 10 moves, the transmission shaft 14 does circular motion around the support shaft 6 relatively, drive sleeve pipe 15 extrusion transfer line 18 during the 14 motion of transmission shaft, transfer line 18 atress drives connecting block 32 and removes, connecting block 32 drives fixed block 17 when removing and makes the balancing weight 7 atress, roll-off weight box 8 during the balancing weight 7 atress, and then can make the mounted position of the automatic counterweight body on the construction machinery adjustable, the purpose of effect in the realization change is joined in marriage, when bearing plate 2 is in the high position, first bracing piece 10 and second bracing piece 3 all are in relative negative angle with support frame 5 relatively, produce the skew relatively when supporting bearing plate 2, make bearing plate 2 can extrude mounting panel 1, and then can utilize mounting panel 1 to provide the holding power to bearing plate 2, need not pneumatic cylinder 13 to provide the holding power this moment, and then can alleviate the working strength of pneumatic cylinder 13.
Example 3: the difference is based on example 1;
the limiting mechanism comprises two gears 23, the two gears 23 are meshed with each other, two positioning shafts 31 are vertically arranged in a rectangular frame 22, shaft walls of the two positioning shafts 31 are fixedly connected with a central hole of the gear 23, two ends of each positioning shaft 31 are rotatably connected with inner walls of two opposite sides of the rectangular frame 22 through sealing bearings, accommodating grooves 36 are formed in two opposite sides of a rectangular through hole 12, one sides of the two accommodating grooves 36 are communicated with the left side of the mounting plate 1, a groove 34 is formed in one side of each accommodating groove 36, a positioning pin 27 is slidably connected in each groove 34, a transmission arm 28 is fixedly connected to the upper end of each positioning pin 27 and is positioned in each accommodating groove 36, one end of each transmission arm 28 is fixedly connected with the shaft wall of each positioning shaft 31, a positioning groove 35 is formed in the upper end of each supporting block 29, each positioning groove 35 is matched with each positioning pin 27, a worm wheel 24 is arranged on the upper side of the rectangular frame 22, the upper, two mounting blocks 30 are fixedly connected to the upper end of the rectangular frame 22, one opposite sides of the two mounting blocks 30 are rotatably connected with a worm 25 through ball bearings, the worm 25 is meshed with one side of the worm wheel 24, and one end of the worm 25 penetrates through a ball shaft and is fixedly connected with a hand wheel 26.
When the limiting mechanism is arranged, when the bearing plate 2 is reset to be in contact with the mounting plate 1, the supporting block 29 on the bearing plate is inserted into the rectangular through hole 12, then the hand wheel 26 is rotated by hands to rotate the worm 25, the worm 25 drives the worm wheel 24 to rotate when rotating, the worm wheel 24 drives one positioning shaft 31 to rotate, at the moment, the other positioning shaft 31 synchronously and reversely rotates under the meshing transmission action of the two gears 23, the positioning shaft 31 drives the transmission arm 28 in the accommodating groove 36 to move when rotating, when the transmission arm 28 moves from the accommodating groove 36 to the rectangular through hole 12, the positioning pin 27 on the transmission arm 28 moves from the groove 34 to the positioning groove 35 on the supporting block 29, and further the supporting block 29 can be limited by the transmission arm 28 and the positioning pin 27, the stability of the bearing plate 2 is improved, and the self-locking characteristic is realized by the meshing of the worm wheel 24 and the worm 25, realize the firm cooperation between locating pin 27 and the constant head tank 35, when needing to use bearing plate 2 installation to adorn the balancing weight outward, direct reverse operation hand wheel 26 is rotatory, can make stop gear reverse operation unblock, convenience of customers uses.
It is to be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A counterweight device for construction machinery, comprising a mounting plate (1), characterized in that: the right side of the mounting plate (1) is fixedly connected with a weight box (8), one side of the weight box (8) is provided with a rectangular opening, a balancing weight (7) is connected in the rectangular opening, one side of the mounting plate (1) is fixedly connected with two supporting frames (5), one opposite side of the two supporting frames (5) is jointly connected with a supporting mechanism, one side of the mounting plate (1) is transversely provided with a bearing plate (2), the side wall of the bearing plate (2) is connected with the supporting mechanism, the side wall of the mounting plate (1) is symmetrically provided with two strip-shaped mounting holes (11), two hydraulic cylinders (13) are obliquely arranged in the two strip-shaped mounting holes (11), the two opposite sides of the strip-shaped mounting holes (11) are rotatably connected with pins through first rolling bearings, and the opposite ends of the two pins are fixedly connected with the cylinder bodies of the hydraulic cylinders, the piston rod end of pneumatic cylinder (13) is connected with supporting mechanism, rectangle through-hole (12) have been seted up to the lateral wall of mounting panel (1), sliding sleeve has supporting shoe (29) in rectangle through-hole (12), the lower extreme center department fixed connection of one side and bearing plate (2) of supporting shoe (29), the rear side fixedly connected with rectangle frame (22) of mounting panel (1), rectangle frame (22) in-connection has stop gear, stop gear is connected with the lateral wall of supporting shoe (29), the equal fixedly connected with connecting piece (9) in the left side four corners department of mounting panel (1).
2. A counterweight device for construction machinery according to claim 1, wherein: the supporting mechanism comprises two supporting shafts (6) which are parallel to each other, two ends of each supporting shaft (6) are respectively and rotatably connected with one side of each supporting frame (5) through second rolling bearings, two ends of one supporting shaft (6) penetrate through the second rolling bearings and are fixedly connected with first supporting rods (10), two ends of the other supporting shaft (6) penetrate through the second rolling bearings and are fixedly connected with second supporting rods (3), the first supporting rods (10) and the second supporting rods (3) are parallel to each other, the side wall of the bearing plate (2) is fixedly connected with two connecting shafts (20) through holes, two ends of one connecting shaft (20) are respectively and rotatably connected with the rod walls of the two first supporting rods (10) through third rolling bearings, and two ends of the other connecting shaft (20) are respectively and rotatably connected with the rod walls of the two second supporting rods (3) through fourth rolling bearings, one side of mounting panel (1) is equipped with transmission shaft (14), the pole wall rotation of the axle wall of transmission shaft (14) through axle sleeve and two first bracing pieces (10) is connected, sliding sleeve (19) has been cup jointed in the slip on the axle wall of transmission shaft (14), one side of sliding sleeve (19) and the terminal fixed connection of piston rod of pneumatic cylinder (13).
3. A counterweight device for construction machinery according to claim 2, wherein: two sleeve pipes (15), two have been cup jointed in the slip on the axle wall of transmission shaft (14) equal fixedly connected with slope transmission line (18) that set up, two on the pipe wall of sleeve pipe (15) the one end of keeping away from sleeve pipe (15) in transmission line (18) has all seted up the opening, be connected with connecting block (32) through the rotation axis rotation in the opening, two right angle breach (33), two have been seted up to the upper end symmetry of weight box (8) equal sliding connection has fixed block (17) in right angle breach (33), the one end of fixed block (17) pass right angle breach (33) and with the lateral wall fixed connection of balancing weight (7), the other end of fixed block (17) and the lower extreme fixed connection of connecting block (32).
4. A counterweight device for construction machinery according to claim 1, wherein: the limiting mechanism comprises two gears (23) and two gears (23) which are meshed with each other, two positioning shafts (31) are vertically arranged in a rectangular frame (22), the shaft walls of the positioning shafts (31) are fixedly connected with the center holes of the gears (23), two ends of each positioning shaft (31) are rotatably connected with the inner walls of two opposite sides of the rectangular frame (22) through sealing bearings, accommodating grooves (36) are formed in two opposite sides of a rectangular through hole (12), one sides of the two accommodating grooves (36) are communicated with the left side of a mounting plate (1), one side of each accommodating groove (36) is provided with a groove (34), a positioning pin (27) is slidably connected in each groove (34), a transmission arm (28) is fixedly connected to the upper end of each positioning pin (27), the transmission arm (28) is located in each accommodating groove (36), one end of each transmission arm (28) is fixedly connected with the shaft wall of each positioning shaft (31), the upper end of the supporting block (29) is provided with a positioning groove (35), the positioning groove (35) is matched with the positioning pin (27), the upper side of the rectangular frame (22) is provided with a worm wheel (24), and the upper end of the positioning shaft (31) penetrates through the sealing bearing and is fixedly connected with the center of the lower side of the worm wheel (24).
5. A counterweight device for construction machinery according to claim 4, wherein: two installation pieces (30) of upper end fixedly connected with of rectangle frame (22), two one side that installation piece (30) are relative all rotates through ball bearing and is connected with worm (25), one side meshing of worm (25) and worm wheel (24), the one end of worm (25) is passed ball axle and fixedly connected with hand wheel (26).
6. A counterweight device for construction machinery according to claim 1, wherein: one side fixedly connected with locating piece (21) of support frame (5), the horizontal fixedly connected with locating plate (4) in upper end of locating piece (21), the upper end fixedly connected with triangle-shaped structure of support frame (5) links up piece (16), the lateral wall fixed connection of one side and mounting panel (1) of linking up piece (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110218109.2A CN112938793A (en) | 2021-02-26 | 2021-02-26 | Counterweight device for construction machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110218109.2A CN112938793A (en) | 2021-02-26 | 2021-02-26 | Counterweight device for construction machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112938793A true CN112938793A (en) | 2021-06-11 |
Family
ID=76246471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110218109.2A Withdrawn CN112938793A (en) | 2021-02-26 | 2021-02-26 | Counterweight device for construction machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112938793A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114408766A (en) * | 2021-12-17 | 2022-04-29 | 湖南中联重科履带起重机有限公司 | Rear counterweight structure and crawler crane |
-
2021
- 2021-02-26 CN CN202110218109.2A patent/CN112938793A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114408766A (en) * | 2021-12-17 | 2022-04-29 | 湖南中联重科履带起重机有限公司 | Rear counterweight structure and crawler crane |
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Application publication date: 20210611 |