CN213171231U - Suspension arm steering device of crawler crane - Google Patents
Suspension arm steering device of crawler crane Download PDFInfo
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- CN213171231U CN213171231U CN202021601059.3U CN202021601059U CN213171231U CN 213171231 U CN213171231 U CN 213171231U CN 202021601059 U CN202021601059 U CN 202021601059U CN 213171231 U CN213171231 U CN 213171231U
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- rotary table
- carousel
- holes
- crawler crane
- vertical shaft
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Abstract
The utility model relates to the technical field of crane, and a crawler crane davit turns to device is disclosed, which comprises a fixing plate and i, the fixed plate is the rectangular plate, the upper end rear side fixed mounting of fixed plate has main gravity piece, the vertical axis that is provided with of intermediate position of fixed plate, the vertical axis is cylindrical stock, the excircle department fixed mounting of vertical axis has the column spinner, the parallel fixed mounting of front end of column spinner has the roof, the roof is the rectangular plate, the vertical downward fixed mounting of lower extreme of roof has the telescopic link, the intermediate position of vertical axis has cup jointed first carousel, first carousel is the circular disk, the extension hole has been seted up to the front end top surface of first carousel, the extension hole is the inside of circular port and telescopic link grafting in the extension hole. The utility model discloses in, make the davit when rotatory different angles through adding second carousel, third carousel and spliced eye, the rotation angle that second carousel and third carousel can correspond the davit realizes that the counter weight increases around the crane davit balanceability and overall stability automatically.
Description
Technical Field
The utility model relates to a hoist technical field especially relates to a crawler crane davit turns to device.
Background
The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. Also known as crown blocks, navigation cranes and cranes.
The tire crane is mainly characterized in that: the traveling cab and the crane control cab are integrated into a whole and are formed by evolving a crawler crane (crawler crane), a crawler and a traveling support part of a traveling mechanism are changed into a chassis with tires, the defect that a crawler plate of the crawler crane (crawler crane) damages a road surface is overcome, and the material handling machine belongs to material handling machinery.
At present, when the existing crane jib steering device on the market rotates, the gravity block of the counterweight is fixed with the rotating disk of the jib, so that the rotating disk of the jib is required to drive the whole counterweight block to synchronously rotate to stabilize the balance of the jib when the rotating disk of the jib rotates at a small angle to work. The counterweight mode ensures that the motor is always in a high-power load rotation state when the suspension arm is driven to rotate, and the long-term use of the motor can influence the service life of the suspension arm rotating shaft and the service life of the motor. Therefore, the crawler crane boom steering device is provided.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem existing in the prior art and provides a crawler crane boom steering device.
In order to achieve the above object, the present invention adopts the following technical solution, a boom turning device for a crawler crane, comprising a fixed plate, wherein the fixed plate is a rectangular plate, a main gravity block is fixedly installed at the rear side of the upper end of the fixed plate, the main gravity block is a rectangular metal block, a vertical shaft is vertically arranged at the middle position of the fixed plate, the vertical shaft is a cylindrical long rod, a rotary column is fixedly installed at the excircle of the vertical shaft, the rotary column is a circular column, a top plate is fixedly installed at the front end of the rotary column in parallel, the top plate is a rectangular plate, a telescopic rod is fixedly installed at the lower end of the top plate vertically and downwardly, a first rotary plate is sleeved at the middle position of the vertical shaft, the first rotary plate is a circular plate, an extension hole is opened at the top surface of the front end of the first rotary plate, the extension hole is a circular hole, and the telescopic rod is inserted in the extension hole, a second, the lower end of the second rotary disc is provided with a third rotary disc, the third rotary disc is a circular disc with the same diameter as the first rotary disc, auxiliary balancing weights are fixedly mounted on the rear sides of the second rotary disc and the third rotary disc respectively, the auxiliary balancing weights are arc-shaped metal blocks, and middle holes are formed in the middle positions of the second rotary disc and the third rotary disc respectively.
Preferably, the middle hole is a circular hole, the vertical shaft penetrates through the middle hole at the middle position of the second rotary table and the middle hole at the middle position of the third rotary table and extends to the lower end of the third rotary table, and the inserting hole is formed in the position, deviating from the middle line by thirty degrees, of the upper end face of the second rotary table.
Preferably, the insertion holes are circular through holes, the circular diameters of the insertion holes are the same as the circular diameters of the extension holes, the insertion holes are also formed in the position, deviating from the sixty degrees of the middle line, of the upper end of the third rotating disc, the lower end of the fixing plate corresponds to the position of the vertical shaft, and the driving motor is fixedly installed on the lower end of the fixing plate.
Preferably, an output shaft of the driving motor penetrates through the fixing plate and is fixedly connected with the vertical shaft, and bearings are sleeved inside middle holes in the middle positions of the second rotating disc and the third rotating disc.
Preferably, the two sets of bearings are sleeved on the outer circle of the vertical shaft, an angle rotation triggering element is installed inside the rotating column, and the triggering element is electrically connected with the driving device of the telescopic rod.
Advantageous effects
The utility model provides a crawler crane davit turns to device. The method has the following beneficial effects:
(1) when the whole crane boom does not rotate greatly, the rear side of the whole crane is subjected to counterweight through the main gravity block, so that the front and rear weights of the crane are balanced, when the crane boom needs to rotate by a large angle to work, the vertical shaft can drive the rotary column to rotate, the rotary column drives the telescopic rod to rotate through the top plate, when the telescopic rod rotates to thirty degrees, the extension hole can coincide with the insertion hole formed in the upper end surface of the second turntable, at the moment, the control element in the rotary column is triggered through the rotation angle of the rotary column, the control element drives the telescopic rod to extend downwards, the telescopic rod is inserted into the insertion hole in the upper end of the second turntable at the moment, the first turntable drives the second turntable to rotate, so that the auxiliary counterweight block and the crane boom keep rotating in opposite directions, the auxiliary counterweight block performs counterweight on the whole crane boom, when the rotary column rotates to sixty degrees, triggering the control element inside the rotary column through the rotation angle of the rotary column, the control element drives the telescopic rod to extend downwards, the telescopic rod is inserted in the insertion hole in the upper end of the third rotary disc at the moment, the first rotary disc drives the third rotary disc to rotate so that the auxiliary balancing weight and the suspension arm are kept to rotate in the opposite direction, the auxiliary balancing weight performs balancing on the whole suspension arm, the second rotary disc is added, the third rotary disc and the insertion hole enable the suspension arm to rotate at different angles, the second rotary disc and the third rotary disc can correspond to the rotation angle of the suspension arm to automatically realize the balancing of the balancing weight to increase the front-back balance and the overall stability of the suspension.
(2) This crawler crane davit turns to device, when the hoist davit is slightly rotatory, the counter weight that whole davit was given to main gravity piece, two sets of supplementary balancing weights can not follow the vertical axis synchronous revolution this moment, thereby the rotatory counter weight of hoist has been reduced, the rotatory resistance that the vertical axis received when rotatory this moment, reduce the load of rotation drive about driving motor, thereby increase driving motor's dynamic performance, guarantee that driving motor need not can drive the davit rotatory through great drive power, the resistance that unnecessary counter weight comes to the motor rotation has been reduced, energy-conserving effect has been reached, and davit pivot and driving motor's life has been improved greatly.
Drawings
Fig. 1 is an overall schematic view of the present invention;
fig. 2 is a detailed schematic diagram of a second turntable according to the present invention;
fig. 3 is an overall sectional view of the present invention.
Illustration of the drawings:
the device comprises a fixing plate 1, a main gravity block 2, a vertical shaft 3, a rotating column 4, a top plate 5, a telescopic rod 6, a first rotating disc 7, an extending hole 8, a second rotating disc 9, a third rotating disc 10, an auxiliary balancing weight 11, a middle hole 12, an inserting hole 13, a driving motor 14 and a bearing 15.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Example (b): a crawler crane boom steering device is shown in figures 1-3 and comprises a fixed plate 1, wherein the fixed plate 1 is a rectangular plate, a main gravity block 2 is fixedly installed on the rear side of the upper end of the fixed plate 1, the main gravity block 2 is a rectangular metal block, a vertical shaft 3 is vertically arranged in the middle of the fixed plate 1, the vertical shaft 3 is a cylindrical long rod, a rotary column 4 is fixedly installed at the excircle of the vertical shaft 3, the rotary column 4 is a circular column, a top plate 5 is fixedly installed at the front end of the rotary column 4 in parallel, the top plate 5 is a rectangular plate, a telescopic rod 6 is fixedly installed at the lower end of the top plate 5 in a vertically downward direction, a first rotary disc 7 is sleeved at the middle of the vertical shaft 3, the first rotary disc 7 is a circular disc, an extension hole 8 is formed in the top face of the front end of the first rotary disc 7, the extension hole 8 is a circular hole, the extension hole 6 is inserted in the extension, the second rotary table 9 is a circular table with the same diameter as the first rotary table 7, the lower end of the second rotary table 9 is provided with a third rotary table 10, the third rotary table 10 is a circular table with the same diameter as the first rotary table 7, the rear sides of the second rotary table 9 and the third rotary table 10 are both fixedly provided with an auxiliary balancing weight 11, the auxiliary balancing weight 11 is an arc-shaped metal block, the middle positions of the second rotary table 9 and the third rotary table 10 are both provided with a middle hole 12, the middle hole 12 is a circular hole, the vertical shaft 3 penetrates through the middle holes 12 at the middle positions of the second rotary table 9 and the third rotary table 10 and extends to the lower end of the third rotary table 10, the upper end surface of the second rotary table 9 is provided with an inserting hole 13 deviated from the middle line by thirty degrees, the inserting hole 13 is a circular through hole, the circular diameter of the inserting hole 13 is the same as that of the extending hole 8, the upper end of the third rotary table 10 is also provided with an inserting hole 13 deviated from the middle, fixed mounting has driving motor 14, and driving motor 14's output shaft runs through fixed plate 1 and vertical axis 3 fixed connection, and bearing 15 all is cup jointed in the inside of second carousel 9 and third carousel 10 intermediate position intermediate hole 12, and two sets of bearings 15 all cup joint in the excircle department of vertical axis 3, and the internally mounted of column spinner 4 has the rotatory trigger component of angle, and this trigger component passes through electric connection with the drive arrangement of telescopic link 6.
The utility model discloses a theory of operation:
when the crane boom does not rotate greatly, the rear side of the whole crane is counterbalanced through the main gravity block 2, so that the front and rear weights of the crane are balanced, when the crane boom needs to rotate by a large angle to work, the vertical shaft 3 can drive the rotary column 4 to rotate, the rotary column 4 drives the telescopic rod 6 to rotate through the top plate 5, when the telescopic rod 6 rotates to thirty degrees, the extension hole 8 can be overlapped with the insertion hole 13 formed in the upper end face of the second rotary disc 9, the control element in the rotary column 4 is triggered through the rotation angle of the rotary column 4, the control element drives the telescopic rod 6 to extend downwards, the telescopic rod 6 is inserted in the insertion hole 13 in the upper end of the second rotary disc 9, the first rotary disc 7 drives the second rotary disc 9 to rotate, so that the auxiliary counterweight block 11 and the crane boom keep rotating in opposite directions, and the auxiliary counterweight block 11 counterbalances the whole crane boom, when the column spinner 4 rotates to sixty degrees, trigger the inside control element of column spinner 4 through 4 rotation angles of column spinner, control element drive telescopic link 6 is extension downwards, telescopic link 6 pegs graft in the inside of third carousel 10 upper end spliced eye 13 this moment, first carousel 7 drives the rotation of third carousel 10 and makes supplementary balancing weight 11 and davit keep being the opposite direction rotation, supplementary balancing weight 11 carries out the counter weight to the davit is whole, through adding second carousel 9, third carousel 10 and spliced eye 13 make the davit when rotatory different angles, the automatic forward and backward equilibrium and the overall stability that realizes the counter weight increase and increase the hoist davit of second carousel 9 and third carousel 10 corresponding rotation angle of davit.
When the crane boom slightly rotates, the main gravity block 2 gives the balance weight of the whole boom, at the moment, the two groups of auxiliary balance weight blocks 11 cannot rotate synchronously along with the vertical shaft 3, so that the rotating balance weight of the crane is reduced, the rotating resistance of the vertical shaft 3 in rotation is small, the load of the left and right rotation driving of the driving motor 14 is reduced, the power performance of the driving motor 14 is increased, the driving motor 14 can be ensured to drive the boom to rotate without large driving force, the resistance of the unnecessary balance weight to the rotation of the motor is reduced, the energy-saving effect is achieved, and the service lives of the boom rotating shaft and the driving motor 14 are greatly prolonged.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a crawler crane davit turns to device, includes fixed plate (1), the upper end rear side fixed mounting of fixed plate (1) has main gravity piece (2), its characterized in that: the main gravity block (2) is a rectangular metal block, a vertical shaft (3) is vertically arranged in the middle of a fixing plate (1), a rotating column (4) is fixedly installed at the excircle of the vertical shaft (3), a top plate (5) is fixedly installed at the front end of the rotating column (4) in parallel, a telescopic rod (6) is fixedly installed at the lower end of the top plate (5) vertically and downwards, a first rotary table (7) is sleeved at the middle of the vertical shaft (3), an extending hole (8) is formed in the top face of the front end of the first rotary table (7), a second rotary table (9) is arranged at the lower end of the first rotary table (7), the second rotary table (9) is a circular disc with the same diameter as the first rotary table (7), a third rotary table (10) is arranged at the lower end of the second rotary table (9), and the third rotary table (10) is a circular disc with the same diameter as the;
the rear sides of the second rotary table (9) and the third rotary table (10) are fixedly provided with auxiliary balancing weights (11), the auxiliary balancing weights (11) are arc-shaped metal blocks, middle holes (12) are formed in the middle positions of the second rotary table (9) and the third rotary table (10), the middle holes (12) are circular holes, the vertical shaft (3) penetrates through the middle holes (12) in the middle positions of the second rotary table (9) and the third rotary table (10) and extends to the lower end of the third rotary table (10), the upper end face of the second rotary table (9) is deviated from the thirty-degree position of the middle line, the inserting holes (13) are formed in the upper end of the third rotary table (10) and deviates from the sixty-degree position of the middle line, the lower end of the fixing plate (1) corresponds to the position of the vertical shaft (3), a driving motor (14) is fixedly arranged, and the output shaft of the driving motor (14) penetrates through the fixing plate (1) and is fixedly connected with.
2. A crawler crane boom steering apparatus as claimed in claim 1, wherein: the extension holes (8) are circular holes, and the telescopic rods (6) are inserted in the extension holes (8).
3. A crawler crane boom steering apparatus as claimed in claim 1, wherein: the plug hole (13) is a circular through hole, and the diameter of the circle of the plug hole (13) is the same as that of the circle of the extension hole (8).
4. A crawler crane boom steering apparatus as claimed in claim 1, wherein: and bearings (15) are sleeved in middle holes (12) in the middle positions of the second rotary table (9) and the third rotary table (10).
5. A crawler crane boom steering apparatus according to claim 4, wherein: two sets of bearing (15) all cup joint in the excircle department of vertical axis (3), and the internally mounted of column spinner (4) has the rotatory trigger element of angle, and this trigger element passes through electric connection with the drive arrangement of telescopic link (6).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202021601059.3U CN213171231U (en) | 2020-08-05 | 2020-08-05 | Suspension arm steering device of crawler crane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202021601059.3U CN213171231U (en) | 2020-08-05 | 2020-08-05 | Suspension arm steering device of crawler crane |
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Publication Number | Publication Date |
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CN213171231U true CN213171231U (en) | 2021-05-11 |
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CN202021601059.3U Active CN213171231U (en) | 2020-08-05 | 2020-08-05 | Suspension arm steering device of crawler crane |
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CN (1) | CN213171231U (en) |
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2020
- 2020-08-05 CN CN202021601059.3U patent/CN213171231U/en active Active
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