CN214653201U - Tower crane standard knot - Google Patents
Tower crane standard knot Download PDFInfo
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- CN214653201U CN214653201U CN202120750992.5U CN202120750992U CN214653201U CN 214653201 U CN214653201 U CN 214653201U CN 202120750992 U CN202120750992 U CN 202120750992U CN 214653201 U CN214653201 U CN 214653201U
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Abstract
The utility model relates to a tower crane standard festival, including a plurality of stands, the stand is fixed with a plurality of pieces of marking time, a plurality of on the stand mark time the piece along the length direction evenly distributed of stand, mark time the piece along the one end and the stand fixed connection of vertical direction, the top of the piece of marking time is sunken along vertical direction has the joint groove, the one end that the stand was kept away from to the piece of marking time is fixed with a plurality of springs, the one end that the piece of marking time was kept away from to the spring is fixed with the guide block, the one end terminal surface slant downward sloping of spring is kept away from to the guide block, the one end edge that the stand was kept away from to the level of the top terminal surface of guide block is higher than the joint groove, the top terminal surface of guide block is towards the slant slope rather than the fixed direction of the piece of marking time. This application has the standard festival and adopts jacking system to connect the high in-process, and the effect of the difficult slope that appears of shoulder pole roof beam.
Description
Technical Field
The application relates to the technical field of tower crane equipment, in particular to a tower crane standard knot.
Background
The tower crane standard knot plays an important role in mechanical equipment such as cranes, tower cranes, elevators and the like; a qualified standard knot can not only improve the stability of the tower cranes, but also obviously improve the safety performance and the working efficiency of the tower cranes and the tower cranes, and even can achieve the effect of achieving twice the result with half the effort.
The standard section comprises four main limbs of seamless steel pipes and a triangular steel frame which are welded in a resistance welding mode, wherein step blocks are welded on the four main limbs; when the standard section is heightened by adopting a hydraulic jacking system, the stepping blocks are used for providing support in the vertical direction for two ends of the shoulder pole beam in the jacking system, so that the sleeve frame of the tower crane is jacked by the hydraulic cylinder, and a heightening space is vacated between the tower top and the bottom layer standard section.
In the standard section height connecting process, the shoulder pole beam continuously ascends by utilizing the stepping block, the shoulder pole beam ascends to the upper part of the stepping block at a higher layer from a lower layer to the stepping block by controlling the hydraulic cylinder, and then the shoulder pole beam descends to the clamping groove of the stepping block by controlling the hydraulic cylinder to realize the vertical clamping of the shoulder pole beam and the stepping block.
In view of the above-mentioned related technologies, the inventor believes that there is a defect that the two ends of the shoulder pole beam cannot accurately fall into the clamping grooves in the process that the shoulder pole beam descends into the clamping grooves of the stepping blocks, so that the shoulder pole beam is inclined.
SUMMERY OF THE UTILITY MODEL
In order to ensure that both ends of the shoulder pole beam can accurately fall into the clamping grooves of the stepping blocks in the descending process of the shoulder pole beam, the shoulder pole beam is not easy to incline in the process that the standard knot is connected by a jacking system; the application provides a tower crane standard festival.
The application provides a tower crane standard festival. The following technical scheme is adopted:
a tower crane standard knot comprises a plurality of upright posts, wherein a plurality of stepping blocks are fixed on the upright posts, the stepping blocks on the upright posts are uniformly distributed along the length direction of the upright posts, one end of the stepping block along the vertical direction is fixedly connected with the upright post, the top of the stepping block is recessed along the vertical direction and is provided with a clamping groove which is communicated with the end surface of one end of the stepping block away from the upright post, a plurality of springs are fixed at one end of the stepping block far away from the upright post, a guide block is fixed at one end of the spring far away from the stepping block, when the spring is in a normal state, a gap is left between the guide block and the stepping block, the end surface of one end of the guide block, which is far away from the spring, inclines downwards in an inclined way, the horizontal height of the top end face of the guide block is higher than one end edge of the clamping groove far away from the stand column, and the top end face of the guide block slants upwards towards the direction of the stepping block fixed with the guide block.
By adopting the technical scheme, in the standard section height connecting process, the shoulder pole beam continuously ascends by utilizing the stepping block, in the ascending process of the shoulder pole beam, two ends of the shoulder pole beam along the horizontal direction are firstly contacted with the guide blocks with the same horizontal height on the adjacent upright posts, because the end surfaces of the guide blocks, which are far away from the spring, are inclined downwards, the guide blocks are contracted by the acting force of the shoulder pole beam, the guide blocks move towards the stepping block, the shoulder pole beam continuously ascends to the upper part of the guide blocks, and at the moment, the spring returns to elastic deformation; the staff operation shoulder pole roof beam descends, when the shoulder pole roof beam descends and with guide block top end face contact, because guide block top end face upwards inclines to the direction of the piece of marking time rather than fixed, the shoulder pole roof beam receives the guide effect of guide block top end face this moment, the both ends of shoulder pole roof beam slide and slide to the joint inslot along guide block top end face for the shoulder pole roof beam can comparatively accurately descend to the joint inslot of the piece of marking time, the standard festival adopts jacking system to connect the high in-process, make the difficult slope that appears of shoulder pole roof beam.
Optionally, the guide block is close to the one end terminal surface of the piece of marking time and is fixed with the deflector, the one end terminal surface of deflector and the top terminal surface coplane of guide block, when the spring was in normal condition, the one end that the guide block was kept away from to the deflector contacts with the edge that the joint groove is close to guide block one end.
By adopting the technical scheme, the gap between the guide block and the stepping block is filled under the action of the guide plate, the two ends of the shoulder pole beam are not easily influenced by the gap between the guide block and the stepping block when the shoulder pole beam descends and slides into the clamping groove from the end surface at the top end of the guide block, the sliding of the shoulder pole beam is more flow, and the guide effect of the guide block on the shoulder pole beam is better.
Optionally, a plurality of mounting holes are formed in the step block, one end of each spring is inserted into and fixed in the corresponding mounting hole one by one, and one end of each spring extending into the corresponding mounting hole is fixed to the bottom of the corresponding mounting hole.
Through adopting above-mentioned technical scheme, the setting of mounting hole, when the shoulder pole roof beam produced the effort of vertical direction to the guide block, because the spring receives the spacing of mounting hole, the difficult deformation that produces along vertical direction of spring leads to the spring to take place the deformation that can not resume to the life of extension spring.
Optionally, a plurality of fixed orificess have been seted up to the one end terminal surface that the guide block is close to the piece of marking time, and is a plurality of the one end that the piece of marking time was kept away from to the spring inserts a plurality of fixed orificess one by one, the one end that the spring stretched into the fixed orifices is fixed with the bottom of fixed orifices.
Through adopting above-mentioned technical scheme, the setting of fixed orifices plays the guard action to the spring for when the shoulder pole roof beam produced the effort to the guide block, the difficult deformation that appears vertical direction of spring makes the spring produce the deformation that can not resume, the life of extension spring.
Optionally, the length of the spring extending into the mounting hole portion is greater than the length of the spring extending into the fixing hole portion.
Through adopting above-mentioned technical scheme, the length that the spring stretched into the mounting hole portion is greater than the setting of the length that the spring stretched into fixed hole portion increases the area to spacing in the spring vertical direction for when the shoulder pole roof beam produced the effort to the guide block, the difficult deformation of vertical direction that appears of spring.
Optionally, the guide block is far away from the one end terminal surface of marking time the piece and is the arcwall face, the guide block is far away from the one end terminal surface of marking time the piece and is protruding towards the direction of keeping away from the piece of marking time.
Through adopting above-mentioned technical scheme, the one end terminal surface that the piece of marking time was kept away from to the guide block is the arcwall face and the guide block keeps away from the one end terminal surface of the piece of marking time towards keeping away from the bellied setting of the direction of the piece of marking time, and when the shoulder pole roof beam produced the effort to the guide block and made the spring produce contraction deformation, the effect that the shoulder pole roof beam was followed the guide block surface and is slided is better.
Optionally, the mounting hole is the same as the fixing hole in diameter, and the spring abuts against the inner wall of the mounting hole.
Through adopting above-mentioned technical scheme, because the aperture of mounting hole and fixed orifices is unanimous, the inner wall butt of spring and mounting hole, when the shoulder pole roof beam produced the effort to the wire piece, the spring received the spacing of mounting hole inner wall for the skew of vertical direction is difficult for appearing in mounting hole and fixed orifices in the spring, and the limiting displacement of mounting hole and fixed orifices to the spring is better.
Optionally, the depth of the mounting hole and the depth of the fixing hole are both greater than the gap between the guide block and the stepping block.
Through adopting above-mentioned technical scheme, the degree of depth of mounting hole, the degree of depth of fixed orifices all are greater than the setting in the clearance between guide block and the piece of marking time for the spring is located the guide block and marks time the part in clearance between the piece less, and the spring is mostly located mounting hole and fixed orifices, makes the flexible comparatively stable of spring, is difficult for producing the deformation of vertical direction.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the two ends of the shoulder pole beam slide along the end face of the top end of the guide block and slide into the clamping grooves, so that the shoulder pole beam can be accurately lowered into the clamping grooves of the stepping blocks, and the shoulder pole beam is not easy to incline in the process that the standard section is connected by a jacking system;
2. the guide plate is used for filling the gap between the guide block and the stepping block, and the two ends of the shoulder pole beam are not easily influenced by the gap between the guide block and the stepping block in the process that the shoulder pole beam descends and slides into the clamping groove from the end face of the top end of the guide block;
3. the setting of mounting hole, when the shoulder pole roof beam produced the effort of vertical direction to the guide block, because the spring receives the spacing of mounting hole, the difficult deformation that produces along vertical direction of spring leads to the spring to take place the deformation that can not resume to the life of extension spring.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is a schematic view of the interior structure of the stepping block of the present embodiment.
Description of reference numerals: 1. a column; 11. a cross bar; 12. a diagonal bar; 2. a stepping block; 21. a clamping groove; 22. mounting holes; 3. a guide block; 31. a fixing hole; 4. a spring; 5. a guide plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to fig. 1-3 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The embodiment of the application discloses a tower crane standard festival. Referring to fig. 1, the tower crane standard pitch is a truss of cuboid shape, and it includes four stands 1, and the welding has horizontal pole 11 and down tube 12 to form the triangular frame between four stands 1, and four stands 1 all are fixed with two pieces 2 of marking time along length direction's lateral wall, and two pieces 2 of marking time are along the length direction evenly distributed of stand 1, and two pieces 2 of marking time on the adjacent stand 1 all set up along vertical direction symmetry.
Referring to fig. 2 and 3, one end of the stepping block 2 in the vertical direction is welded with the upright post 1, a clamping groove 21 is recessed in the top of the stepping block 2 in the vertical direction, and the clamping groove 21 is communicated with the end face of one end of the stepping block 2 away from the upright post 1; four mounting holes 22 are opened to the one end terminal surface that the piece 2 of marking time kept away from stand 1, and mounting hole 22 is seted up along the horizontal direction, and the bottom of mounting hole 22 is fixed with spring 4 and the inner wall and the spring 4 butt of mounting hole 22.
The one end terminal surface slant that spring 4 was kept away from to guide block 3 slopes down, the level of the top terminal surface of guide block 3 is higher than the one end edge that stand 1 was kept away from to joint groove 21, the top terminal surface of guide block 3 is towards the direction slant tilt up rather than fixed piece 2 of marking time, the one end terminal surface that guide block 3 is close to piece 2 of marking time is fixed with deflector 5, the one end terminal surface of deflector 5 and the top terminal surface coplane of guide block 3, when spring 4 is in normal condition, the one end that guide block 3 was kept away from to deflector 5 is close to the edge contact of guide block 3 one end with joint groove 21.
The one end terminal surface that the piece 2 was kept away from to guide block 3 is the arcwall face, and the one end terminal surface that the piece 2 was kept away from to guide block 3 is protruding towards the direction of keeping away from the piece 2 of marking time.
The implementation principle of a tower crane standard section in the embodiment of the application is as follows: in the standard section height connecting process, the shoulder pole beam continuously ascends by utilizing the stepping block 2, in the process that the shoulder pole beam ascends from the stepping block 2 at the lower position of the upright post 1 to the stepping block 2 at the higher position, two ends of the shoulder pole beam are contacted with one end face of the guide block 3 far away from the stepping block 2, the shoulder pole beam generates acting force on the arc face, so that four springs 4 are all contracted and deformed, and the guide block 3 moves towards the stepping block 2 to ensure that the gap between the guide block 3 and the stepping block 2 is reduced; the shoulder pole beam continuously rises above the guide block 3, at the moment, the spring 4 returns to elastic deformation, and then the staff controls the hydraulic cylinder to make the shoulder pole beam descend to the clamping groove 21.
In the process of descending the shoulder pole beam, the shoulder pole beam is contacted with the end face of the top end of the guide block 3, then the shoulder pole beam slides to the guide plate 5 under the guidance of the end face of the top end of the guide block 3, and finally slides to the clamping groove 21 under the guidance of the guide plate 5.
The guide plate 5 is used for filling the gap between the guide block 3 and the stepping block 2, and the two ends of the shoulder pole beam are not easily affected by the gap between the guide block 3 and the stepping block 2.
Due to the arrangement of the mounting holes 22 and the fixing holes 31, the spring 4 is not easy to deform in the vertical direction, so that the spring 4 is not deformed to be restored, and the service life of the spring 4 is prolonged.
The one end terminal surface that the piece 2 was kept away from to guide block 3 is the arcwall face and the guide block 3 keeps away from the one end terminal surface that the piece 2 was marked time towards the bellied setting of the direction of keeping away from the piece 2 of marking time for the effect that the shoulder pole roof beam is gliding along the 3 surfaces of guide block is better.
The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the application in any way, and any features disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Claims (8)
1. The utility model provides a tower crane standard festival, includes a plurality of stands (1), stand (1) is fixed with a plurality of pieces of marking time (2), a plurality of on stand (1) mark time piece (2) along the length direction evenly distributed of stand (1), mark time piece (2) along the one end and stand (1) fixed connection of vertical direction, the top of marking time piece (2) is sunken along vertical direction to have joint groove (21) and joint groove (21) intercommunication to mark time piece (2) and keep away from the one end terminal surface of stand (1), its characterized in that: the one end of marking time piece (2) keeping away from stand (1) is fixed with a plurality of springs (4), the one end that piece (2) were kept away from marking time in spring (4) is fixed with guide block (3), and when spring (4) were in normal condition, leave the clearance between guide block (3) and the piece (2) of marking time, the one end terminal surface slant decline that spring (4) were kept away from in guide block (3), the horizontal height of the top terminal surface of guide block (3) is higher than joint groove (21) and keeps away from the one end edge of stand (1), the top terminal surface of guide block (3) is towards the direction slant slope rather than fixed piece (2) of marking time.
2. The tower crane standard knot of claim 1, wherein: guide block (3) are close to the one end terminal surface of marking time piece (2) and are fixed with deflector (5), the one end terminal surface of deflector (5) and the top terminal surface coplane of guide block (3), when spring (4) are in normal condition, the one end that guide block (3) were kept away from in deflector (5) contacts with the edge that joint groove (21) are close to guide block (3) one end.
3. The tower crane standard knot of claim 1, wherein: a plurality of mounting holes (22) have been seted up in piece (2) of marking time, and is a plurality of the one end of spring (4) inserts one by one and fixes in a plurality of mounting holes (22), spring (4) stretch into mounting hole (22) one end and the bottom of mounting hole (22) is fixed.
4. The tower crane standard knot of claim 1, wherein: a plurality of fixed orificess (31) have been seted up to guide block (3) one end terminal surface that is close to mark time piece (2), and is a plurality of the one end that mark time piece (2) was kept away from in spring (4) inserts a plurality of fixed orificess (31) one by one, the one end that spring (4) stretched into fixed orifices (31) is fixed with the bottom of fixed orifices (31).
5. The tower crane standard knot of claim 4, wherein: the length of the part, extending into the mounting hole (22), of the spring (4) is larger than the length of the part, extending into the fixing hole (31), of the spring (4).
6. The tower crane standard knot of claim 1, wherein: the one end terminal surface that mark time piece (2) was kept away from in guide block (3) is the arcwall face, the one end terminal surface that mark time piece (2) was kept away from in guide block (3) is protruding towards the direction of keeping away from mark time piece (2).
7. The tower crane standard knot of claim 3, wherein: the diameter of the mounting hole (22) is consistent with that of the fixing hole (31), and the spring (4) is abutted against the inner wall of the mounting hole (22).
8. The tower crane standard knot of claim 3, wherein: the depth of the mounting hole (22) and the depth of the fixing hole (31) are both larger than the gap between the guide block (3) and the stepping block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120750992.5U CN214653201U (en) | 2021-04-13 | 2021-04-13 | Tower crane standard knot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120750992.5U CN214653201U (en) | 2021-04-13 | 2021-04-13 | Tower crane standard knot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214653201U true CN214653201U (en) | 2021-11-09 |
Family
ID=78461718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120750992.5U Active CN214653201U (en) | 2021-04-13 | 2021-04-13 | Tower crane standard knot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214653201U (en) |
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2021
- 2021-04-13 CN CN202120750992.5U patent/CN214653201U/en active Active
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