CN211594819U - Self-propelled gantry crane capable of automatically installing prestressed steel cylinder concrete pipe - Google Patents
Self-propelled gantry crane capable of automatically installing prestressed steel cylinder concrete pipe Download PDFInfo
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- CN211594819U CN211594819U CN202020109905.3U CN202020109905U CN211594819U CN 211594819 U CN211594819 U CN 211594819U CN 202020109905 U CN202020109905 U CN 202020109905U CN 211594819 U CN211594819 U CN 211594819U
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- gantry crane
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 45
- 239000010959 steel Substances 0.000 title claims abstract description 45
- 239000004567 concrete Substances 0.000 title claims abstract description 23
- 239000011513 prestressed concrete Substances 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 22
- 238000010276 construction Methods 0.000 abstract description 11
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model particularly relates to a self-propelled gantry crane of prestressing force steel cylinder concrete pipe can install automatically, the operation mode of having solved current hoist engine and having pull the gantry crane has the problem that the suitability is poor, working strength is big, operating efficiency is low, factor of safety is low in the construction. A self-propelled gantry crane capable of automatically installing prestressed steel cylinder concrete pipes is characterized in that an installation platform is arranged above each hydraulic crawler assembly, a PCCP pipeline is arranged between the two installation platforms, a pipe jacking beam is arranged on the right end face of the PCCP pipeline, a bridge frame is arranged above the PCCP pipeline, and a plurality of electric hoists are arranged on the lower surface of the bridge frame; the upper surface of each mounting platform is provided with an adjusting oil cylinder, a pipe jacking oil cylinder and a fixed pulley, and the right end face of the bridge frame is provided with an electric hoist I; the upper surface of the bridge frame is provided with a hydraulic pump and a generator. The utility model discloses an automatic walking, the purpose of automatically regulated installation PCCP pipeline, the sound construction, convenient operation is swift, has reduced construction cost and operation working strength, has improved the operating efficiency.
Description
Technical Field
The utility model relates to a hoisting apparatus for hydraulic engineering specifically is a self-propelled portal crane that can install prestressing force steel cylinder concrete pipe automatically.
Background
In water conservancy projects, a prestressed concrete cylinder pipe (PCCP for short) is a common water conveying pipe and has the characteristics of high sealing property, high strength and high impermeability. When the PCCP pipeline is installed in a special section, the PCCP pipeline is transported and installed on a paved track by using a hoisting machine to pull a gantry crane.
However, practice shows that the operation mode of the existing winch traction gantry crane has the following problems in construction: firstly, a track can not be laid in a complex section to fix the winch, the applicability is poor, and the safety coefficient is low; secondly, the traveling speed of the traction type gantry crane of the winch is slow, the installation progress is influenced, and the operation efficiency is low; thirdly, the track and the winch are recycled, and the track and the winch need to be dismounted, moved, transported, laid, fixed and the like along with the installation progress of the pipeline, so that the installation operation cannot be continuously carried out, and the progress of an installation working face is seriously influenced; fourthly, during installation, the axis adjustment is realized by manually moving the jack; the pipeline is pulled in by fixing a hanging strip on the installed pipeline, erecting a pipe jacking beam in front of the pipeline to be installed, synchronously pulling in two sides by adopting an internal pulling method or an external pulling method through a chain block, carrying and following the pipe jacking beam and the chain block when the pipe jacking beam and the chain block are installed, all installation and auxiliary work need manual operation, the working strength is high, and the construction efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the operation mode that current hoist engine pull portal crane and have the problem that the suitability is poor, working strength is big, the operating efficiency is low, factor of safety is low in the construction, provide a self-propelled portal crane that can install prestressed steel cylinder concrete pipe automatically.
The utility model discloses an adopt following technical scheme to realize:
a self-propelled gantry crane capable of automatically installing a prestressed steel cylinder concrete pipe comprises the prestressed steel cylinder concrete pipe; the hydraulic crawler belt assembly is characterized by further comprising two hydraulic crawler belt assemblies distributed in the front and back direction, mounting platforms are horizontally arranged above each hydraulic crawler belt assembly, the prestressed steel cylinder concrete pipe is arranged between the two mounting platforms in the left and right direction, a top pipe beam arranged in the front and back direction is arranged on the right end face of the prestressed steel cylinder concrete pipe, a bridge frame is horizontally arranged above the prestressed steel cylinder concrete pipe, and a plurality of electric hoists connected to the prestressed steel cylinder concrete pipe are arranged on the lower surface of the bridge frame; a plurality of support legs which are distributed left and right are vertically arranged between the bridge frame and each mounting platform; the upper surface of each mounting platform is provided with an adjusting oil cylinder, a pipe jacking oil cylinder and a fixed pulley, and the pipe jacking oil cylinders and the fixed pulleys are distributed in the front-back direction; the outer end parts of the piston rods of the two adjusting oil cylinders face the outer side wall of the prestressed steel cylinder concrete pipe; piston rods of the two pipe-jacking oil cylinders are arranged towards the right and are connected with the pipe-jacking beam through steel wire ropes wound on the fixed pulleys; the right end face of the bridge frame is provided with a plurality of electric hoists I connected to the top pipe beam; the hydraulic motor, the adjusting oil cylinders and the pipe jacking oil cylinders of each hydraulic crawler assembly are communicated with the hydraulic pump through hydraulic distributors; the output end of the generator is connected with the power supply end of the hydraulic pump.
When the device works, firstly, a generator and a hydraulic pump are started, the generator supplies power to the hydraulic pump, the hydraulic pump drives two hydraulic track assemblies to travel, the two hydraulic track assemblies drive the gantry crane to move to an installation working surface, then the height of a PCCP pipeline to be installed is adjusted through each electric hoist, the front position and the rear position of the PCCP pipeline to be installed are adjusted through the front-rear same-direction movement of piston rods of two adjusting oil cylinders, when the axis of the PCCP pipeline to be installed and the axis of the installed PCCP pipeline are positioned on the same straight line, the piston rod of the pipe-jacking oil cylinder extends out rightwards, under the driving of the piston rod, the length of a steel wire rope between the piston rod and a fixed pulley is increased, the length of the steel wire rope between the fixed pulley and the pipe-jacking beam is shortened, the pipe-jacking beam is pulled to move leftwards, the pipe-jacking beam pushes the PCCP pipeline to be installed to move leftwards, and after the installation is finished, retracting a piston rod of the pipe jacking oil cylinder, disconnecting the steel wire rope from the pipe jacking beam, moving the pipe jacking beam upwards to the bridge frame through the electric hoist I, finishing the transportation and installation operation of the PCCP pipeline, and driving the gantry crane out of the installation working face. The problems of poor applicability, high working strength, low working efficiency and low safety factor in the construction of the conventional operation mode of the winch-driven gantry crane are solved.
The lower surface of each mounting table is fixed with two channel steel-shaped supporting plates which are erected on a cross beam of the hydraulic crawler assembly and distributed left and right.
The structural design of channel-section steel form backup pad can stabilize the support mount table, and then is favorable to the firm installation of adjustment hydro-cylinder and push pipe hydro-cylinder.
The upper surface of one of the mounting platforms is provided with a driving operation position, and the hydraulic distributor is positioned beside the driving operation position.
The operating personnel carry out centralized control through hydraulic distributor to hydraulic pressure track assembly, adjustment hydro-cylinder and push pipe hydro-cylinder, and convenient operation is swift, has effectively improved the operating efficiency.
A protection frame is horizontally arranged above the bridge frame, and four upright posts are arranged between the protection frame and the bridge frame.
The structural design of the protective frame can provide protection for the hydraulic pump and the generator, and further the service life of the gantry crane is prolonged.
The quantity of the landing leg that sets up between every mount table and the crane span structure is two, and the left and right sides of every landing leg all is provided with and is located between mount table and the crane span structure and the ascending bracing of slope.
Ribbed plates are arranged at the joint of each pipe jacking oil cylinder and the corresponding mounting platform, the joint of each supporting leg and the corresponding mounting platform and the joint of each supporting leg and the bridge.
The structural design of many landing legs, bracing, floor has increased the structural firmness of this portal crane, and then has increased the life of this portal crane, has improved the factor of safety of transportation and installation operation simultaneously.
The outer end part of the piston rod of each adjusting oil cylinder is provided with an arc-shaped steel base plate tightly attached to the outer side wall of the prestressed steel cylinder concrete pipe.
The outer side wall of the PCCP pipeline can be effectively protected through the structural design of the arc-shaped steel base plate, and the pipeline anticorrosive coating is prevented from being worn under the action of pressure.
The number of the electric hoists is four, and the electric hoists are all the electric hoists with the ring chains; the number of the electric hoists I is two, and the electric hoists I are all steel wire rope electric hoists; the top pipe beam is formed by welding two channel steels.
The structure improvement of the push pipe beam further reduces the manufacturing cost of the gantry crane on the basis of meeting the installation function of the push pipe.
The utility model has the advantages of reasonable design reliably, realized the purpose of automatic walking, automatically regulated installation PCCP pipeline, sound construction moreover, the operation is stable, and convenient operation is swift in the construction simultaneously, has effectively reduced the working strength in the operation, has increased substantially the operating efficiency, has reduced construction cost, has long service life, low in manufacturing cost, advantage that factor of safety is high, is applicable to the transportation and the installation of complicated district PCCP pipeline.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a left side view of FIG. 1;
fig. 3 is a partially enlarged schematic view at a in fig. 2.
In the figure, 1-a prestressed steel cylinder concrete pipe, 2-a hydraulic track assembly, 3-an installation platform, 4-a pipe jacking beam, 5-a bridge frame, 6-an electric hoist, 7-a supporting leg, 8-an adjusting oil cylinder, 9-a pipe jacking oil cylinder, 10-a fixed pulley, 11-a steel wire rope, 12-an electric hoist I, 13-a hydraulic pump, 14-a generator, 15-a cross beam, 16-a channel steel-shaped supporting plate, 17-a driving operation position, 18-a protective frame, 19-an upright post, 20-an inclined strut, 21-a rib plate and 22-an arc steel base plate.
Detailed Description
A self-propelled gantry crane capable of automatically installing a prestressed steel cylinder concrete pipe comprises a prestressed steel cylinder concrete pipe 1; the hydraulic crawler belt type prestressed concrete cylinder pipe is characterized by further comprising two hydraulic crawler belt assemblies 2 distributed in the front and back direction, an installation platform 3 is horizontally arranged above each hydraulic crawler belt assembly 2, the prestressed concrete cylinder pipe 1 is arranged between the two installation platforms 3 in the left and right direction, a top pipe beam 4 arranged in the front and back direction is arranged on the right end face of the prestressed concrete cylinder pipe 1, a bridge frame 5 is horizontally arranged above the prestressed concrete cylinder pipe 1, and a plurality of electric hoists 6 connected to the prestressed concrete cylinder pipe 1 are arranged on the lower surface of the bridge frame 5; a plurality of support legs 7 which are distributed left and right are vertically arranged between the bridge frame 5 and each mounting platform 3; the upper surface of each mounting platform 3 is provided with an adjusting oil cylinder 8, a pipe jacking oil cylinder 9 and a fixed pulley 10, and the pipe jacking oil cylinder 9 and the fixed pulley 10 are distributed in the front-back direction; the outer end parts of the piston rods of the two adjusting oil cylinders 8 face the outer side wall of the prestressed steel cylinder concrete pipe 1; piston rods of the two pipe-jacking oil cylinders 9 are arranged towards the right and are connected with the pipe-jacking beam 4 through a steel wire rope 11 wound on a fixed pulley 10; the right end face of the bridge frame 5 is provided with a plurality of electric hoists I12 connected to the top pipe beam 4; the upper surface of the bridge frame 5 is provided with a hydraulic pump 13 and a generator 14, and the hydraulic motor, the adjusting cylinders 8 and the pipe jacking cylinders 9 of each hydraulic crawler assembly 2 are communicated with the hydraulic pump 13 through hydraulic distributors; the output of the generator 14 is connected to the power supply of the hydraulic pump 13.
Two channel steel-shaped supporting plates 16 which are erected on a cross beam 15 of the hydraulic crawler assembly 2 and distributed left and right are fixed on the lower surface of each mounting table 3. The upper surface of one of the mounting platforms 3 is provided with a driving operation position 17, and the hydraulic distributor is positioned beside the driving operation position 17. A protective frame 18 is horizontally arranged above the bridge frame 5, and four upright posts 19 are arranged between the protective frame and the bridge frame. The number of the supporting legs 7 arranged between each mounting platform 3 and the bridge frame 5 is two, and inclined struts 20 which are positioned between the mounting platforms 3 and the bridge frame 5 and incline upwards are arranged on the left side and the right side of each supporting leg 7. Ribbed plates 21 are arranged at the joint of each pipe jacking oil cylinder 9 and the corresponding mounting platform 3, the joint of each supporting leg 7 and the corresponding mounting platform 3 and the joint of each supporting leg 7 and the bridge frame 5. The outer end part of the piston rod of each adjusting oil cylinder 8 is provided with an arc-shaped steel base plate 22 which is tightly attached to the outer side wall of the prestressed steel cylinder concrete pipe 1. The number of the electric hoists 6 is four, and the electric hoists are all chain electric hoists; the number of the electric hoists I12 is two, and the electric hoists are all steel wire rope electric hoists; the top tubular beam 4 is made of two channel steels by welding.
In the specific implementation process, the maximum bearing weight of the hydraulic crawler assembly 2 is 24t, the maximum driving speed is 3km/h, and the maximum climbing angle is 30 degrees; the hydraulic pump 13 is provided with an asynchronous motor with the rated power of 37kW, and a star-triangle step-down starting mode is adopted; the generator 14 is a diesel generator set with the output power of 100 kW; the lifting capacity of the electric hoist 6 is 10 t; the lifting capacity of the electric hoist I12 is 0.5 t; the mounting platform 3, the bridge frame 5, the supporting legs 7, the channel steel-shaped supporting plate 16, the protective frame 18, the upright posts 19, the inclined struts 20 and the rib plates 21 are all composed of existing I-steel and channel steel of a construction site; during operation, the pipe jacking beam 4 capable of moving up and down is placed at the central position of the PCCP pipeline to be installed; the pipe jacking oil cylinder 9 utilizes the counterforce to pull the steel wire rope 11 to pull the PCCP pipeline to be installed to the installation position.
Claims (8)
1. A self-propelled gantry crane capable of automatically installing a prestressed steel cylinder concrete pipe comprises a prestressed steel cylinder concrete pipe (1); the method is characterized in that: the prestressed concrete cylinder pipe is characterized by further comprising two hydraulic crawler assemblies (2) distributed front and back, mounting platforms (3) are horizontally arranged above each hydraulic crawler assembly (2), the prestressed concrete cylinder pipe (1) is arranged between the two mounting platforms (3) in the left-right direction, a top pipe beam (4) placed in the front-back direction is arranged on the right end face of the prestressed concrete cylinder pipe (1), a bridge frame (5) is horizontally arranged above the prestressed concrete cylinder pipe, and a plurality of electric hoists (6) connected to the prestressed concrete cylinder pipe (1) are arranged on the lower surface of the bridge frame (5); a plurality of supporting legs (7) which are distributed left and right are vertically arranged between the bridge frame (5) and each mounting platform (3);
the upper surface of each mounting platform (3) is provided with an adjusting oil cylinder (8), a pipe-jacking oil cylinder (9) and a fixed pulley (10), and the pipe-jacking oil cylinders (9) and the fixed pulleys (10) are distributed in the front-back direction; the outer end parts of the piston rods of the two adjusting oil cylinders (8) face the outer side wall of the prestressed steel cylinder concrete pipe (1); piston rods of the two pipe-jacking oil cylinders (9) are arranged towards the right and are connected with the pipe-jacking beam (4) through a steel wire rope (11) wound on the fixed pulley (10); the right end face of the bridge (5) is provided with a plurality of electric hoists I (12) connected to the top pipe beam (4);
the upper surface of the bridge (5) is provided with a hydraulic pump (13) and a generator (14), and a hydraulic motor, each adjusting oil cylinder (8) and each pipe jacking oil cylinder (9) of each hydraulic crawler assembly (2) are communicated with the hydraulic pump (13) through a hydraulic distributor; the output end of the generator (14) is connected with the power supply end of the hydraulic pump (13).
2. The self-propelled gantry crane capable of automatically installing the prestressed concrete cylinder pipe according to claim 1, is characterized in that: the lower surface of each mounting table (3) is fixed with two channel steel-shaped supporting plates (16) which are erected on a cross beam (15) of the hydraulic crawler assembly (2) and distributed left and right.
3. The self-propelled gantry crane capable of automatically installing the prestressed concrete cylinder pipe according to claim 1, is characterized in that: the upper surface of one of the mounting platforms (3) is provided with a driving operation position (17), and the hydraulic distributor is positioned beside the driving operation position (17).
4. The self-propelled gantry crane capable of automatically installing the prestressed concrete cylinder pipe according to claim 1, is characterized in that: a protective frame (18) is horizontally arranged above the bridge frame (5), and four upright posts (19) are arranged between the protective frame and the bridge frame.
5. The self-propelled gantry crane capable of automatically installing the prestressed concrete cylinder pipe according to claim 1, is characterized in that: the number of the supporting legs (7) arranged between each mounting platform (3) and the bridge frame (5) is two, and inclined struts (20) which are positioned between the mounting platforms (3) and the bridge frame (5) and incline upwards are arranged on the left side and the right side of each supporting leg (7).
6. The self-propelled gantry crane capable of automatically installing the prestressed concrete cylinder pipe according to claim 1, is characterized in that: ribbed plates (21) are arranged at the joint of each pipe jacking oil cylinder (9) and the corresponding mounting platform (3), the joint of each supporting leg (7) and the corresponding mounting platform (3), and the joint of each supporting leg (7) and the bridge (5).
7. The self-propelled gantry crane capable of automatically installing the prestressed concrete cylinder pipe according to claim 1, is characterized in that: the outer end part of the piston rod of each adjusting oil cylinder (8) is provided with an arc-shaped steel base plate (22) which is tightly attached to the outer side wall of the prestressed steel cylinder concrete pipe (1).
8. The self-propelled gantry crane capable of automatically installing the prestressed concrete cylinder pipe according to claim 1, is characterized in that: the number of the electric hoists (6) is four, and the electric hoists are all ring chain electric hoists; the number of the electric hoists I (12) is two, and the electric hoists I are all steel wire rope electric hoists; the top tubular beam (4) is formed by welding two channel steels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020109905.3U CN211594819U (en) | 2020-01-18 | 2020-01-18 | Self-propelled gantry crane capable of automatically installing prestressed steel cylinder concrete pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020109905.3U CN211594819U (en) | 2020-01-18 | 2020-01-18 | Self-propelled gantry crane capable of automatically installing prestressed steel cylinder concrete pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211594819U true CN211594819U (en) | 2020-09-29 |
Family
ID=72579377
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020109905.3U Expired - Fee Related CN211594819U (en) | 2020-01-18 | 2020-01-18 | Self-propelled gantry crane capable of automatically installing prestressed steel cylinder concrete pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211594819U (en) |
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2020
- 2020-01-18 CN CN202020109905.3U patent/CN211594819U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |