CN203817120U - Bending structure of pipe fitting - Google Patents
Bending structure of pipe fitting Download PDFInfo
- Publication number
- CN203817120U CN203817120U CN201420215247.0U CN201420215247U CN203817120U CN 203817120 U CN203817120 U CN 203817120U CN 201420215247 U CN201420215247 U CN 201420215247U CN 203817120 U CN203817120 U CN 203817120U
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- China
- Prior art keywords
- block
- hydraulic cylinder
- pipe fitting
- support
- straight pipe
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Abstract
The utility model discloses a bending structure of a pipe fitting. The bending structure comprises a support frame, on which a stand column is arranged. An annular groove is formed in the stand column. A hydraulic cylinder is arranged on the support frame and has an output end connected with a block just opposite to an arc top of the annular groove. A semi-circular groove is formed in the block. Rollers are arranged at the inner walls at two ends of the semi-circular groove and a groove bottom and connected with the semi-circular groove via a rotary shaft. The bending structure of the pipe fitting has following beneficial effects: with one side of the annular groove where the annular groove is just opposite to the block as a support point, two ends of the semi-circular groove apply forces on the straight pipe fitting so that the straight pipe fitting starts to deform by bending; cooperation between the annular groove and the semi-circular groove enables the straight pipe to gradually deform in bent and enclosed space with all parts being evenly stressed; the straight pipe is prevented from being partially elevated at the bending part; and service lifetime of an exhaust pipe is prolonged.
Description
Technical field
The utility model relates to tubing apparatus for bending, specifically vial part bending structure.
Background technology
Loading machine is mainly used to shovel, loading, unloading, muck haulage and building stones one class bulk material, also can carry out slight spading operation to rock, pan soil.If change different equipments, can also complete the work of soil-shifting, lifting, handling unclassified stores.In construction of the highway, be mainly used in filling out of subgrade engineering and dig, the operation such as the gathering materials of pitch and coagulating cement borrow pit, charging.Due to it, to have operating speed fast, and mobility is good, operates the advantages such as light, therefore becomes the main machinery in restoration in earth-rock construction.
In the time that loading machine is worked, because its live load is large, therefore compared with being generally parallel to backward ground with the angle direction of car and light weight domestic automobile exhaust pipeline, and the angle of the oversize vehicle discharge ducts such as the loading machine that high-power transport vehicle and engineering are used is normally folded to ground.In the production process of blast pipe, bending for discharge duct adopts simple bend pipe equipment conventionally, by manual operation, pipe fitting is carried out to bend pipe, though these class methods are simple, but not only increase staff's working strength, on blast pipe after bend pipe, there will be obvious fine wrinkle, being pipe fitting makes local eminence because of unbalance stress, and local eminence place of pipe fitting easily produces metal fatigue, in use easily being got rid of thing by oil cylinders such as waste gas corrodes, make the exhaust emissions of loading machine not up to standard, cause environmental pollution.
Utility model content
The purpose of this utility model is to provide pipe fitting bending structure, avoids blast pipe to occur metal fatigue and service life of reducing blast pipe in pipe bent position in the time of bending, improves the quality of bend pipe when reducing labor strength.
The purpose of this utility model is achieved through the following technical solutions:
Pipe fitting bending structure, comprise bearing support, on described bearing support, column is installed, on described column, have cannelure, hydraulic cylinder is installed on bearing support, the output of hydraulic cylinder is connected with block, and described block is the arc top to cannelure just, on described block, have half slot, on the inwall at the two ends of half slot and bottom land, roller is installed, roller is connected with half slot by rotating shaft; Also comprise slide slot, described slide slot is arranged on bearing support, and the end, two ends of slide slot is provided with travel switch, and described travel switch is connected with the control device of hydraulic cylinder by wire, and shock-damping structure is also installed in described rotating shaft.When the utility model uses, the straight pipe of blast pipe is placed on the cannelure on column, primer fluid cylinder pressure, the output of hydraulic cylinder promotes block and moves to column direction in slide slot, in the time that block contacts with column and straight pipe is clamped, roller on two walls and the bottom land of half slot contacts with straight pipe, hydraulic cylinder continues to move in slide slot, taking cannelure just the arc of the side to block push up as the strong point, the two ends of half slot apply an active force to straight pipe respectively, make straight pipe start the bending deformation that occurs, cannelure and half slot cooperatively interact, make straight pipe that deformation occur gradually in bending confined space, and straight pipe each several part in bending confined space is stressed evenly, avoid occurring local eminence in the knee of straight pipe, extend the service life of blast pipe, in the time that block moves to the end of slide slot, the end face of block contacts with the travel switch on chute cell wall, travel switch is connected with the control device of hydraulic cylinder by wire, described hydraulic cylinder is piston-type hydraulic cylinder, the control device of hydraulic cylinder is oil pump, travel switch is connected with oil pump, and control oil pump is respectively to oil-out, oil-in oiling, control the flexible of hydraulic cylinder with this, travel switch can be controlled hydraulic cylinder and quit work, avoid the excessive propelling of block to cause blast pipe curved transitions and cause damage, after bend pipe operation finishes, the output rollback of hydraulic cylinder, drive block to separate with column, block continues to move in slide slot, be after the travel switch contact on slide slot other end cell wall, travel switch control hydraulic cylinder quits work, completed the bend pipe of blast pipe.
Described shock-damping structure comprises rolling wheel support and support tube, support tube is fixed in half slot, roller is arranged on rolling wheel support by rotating shaft, bottom at rolling wheel support is provided with support bar, support bar is arranged in support tube, support bar is provided with limited block, between the cylinder end of limited block and support tube, torsionspring is installed.In the time of the straight pipe of blast pipe and two end in contact of half slot, under the progradation of hydraulic cylinder, roller on cell wall and the bottom land of half slot starts to exert pressure to straight pipe, after straight pipe generation deformation simultaneously, can apply a reaction force to half slot, be easy to cause the two ends torsional deformation of half slot, end at half slot two ends arranges support tube, between support tube and rolling wheel support, torsionspring is installed, work as roller stress, rolling wheel support compression torsionspring, the elastic force that torsionspring produces can fall most pressure buffer, alleviate the extent of damage of half slot with this, improve service life of the present utility model.
The angle that the axial line of the roller on inwall and the bottom land at the two ends of described half slot becomes is 60 °.The distribution on half slot of three rollers directly affects the stressing conditions of the straight pipe of blast pipe, the angle that axial line between roller becomes is 60 °, make straight pipe in half slot, have three equally distributed stress points, in the time that block is pushed ahead, ensure the stress balance of straight pipe, avoid occurring impression on straight pipe.
Also comprise U-shaped piece, the two ends of described U-shaped piece are fixed on bearing support, have through hole at the bend of U-shaped piece, and the output of described hydraulic cylinder is connected with block through through hole.Inverted U-shaped piece can play certain guide effect to the output of hydraulic cylinder, ensures that hydraulic cylinder output and block are stable mobile in slide slot.
In described through hole, sleeve pipe is installed, between described sleeve pipe and through-hole wall, is provided with multiple springs.In the time that block contacts with straight pipe, the output of hydraulic cylinder can be subject to stress radially, make block that certain beating occur, and then cause the cannelure on block and column to misplace, affect the precision of straight pipe bend pipe, sleeve pipe is set in through hole, and the spring being positioned on sleeve pipe and through-hole wall can be eliminated radial stress, ensures hydraulic cylinder and block stable movement in the horizontal direction.
The utility model compared with prior art, has following advantage and beneficial effect:
1, the utility model pipe fitting bending structure, taking cannelure just the arc of the side to block push up as the strong point, the two ends of half slot apply an active force to straight pipe respectively, make straight pipe start the bending deformation that occurs, cannelure and half slot cooperatively interact, and make straight pipe that deformation occur gradually in bending confined space, and straight pipe each several part in bending confined space is stressed evenly, avoid occurring local eminence in the knee of straight pipe, extend the service life of blast pipe;
2, the utility model pipe fitting bending structure, the distribution on half slot of three rollers directly affects the stressing conditions of the straight pipe of blast pipe, the angle that axial line between roller becomes is 60 °, make straight pipe in half slot, have three equally distributed stress points, in the time that block is pushed ahead, ensure the stress balance of straight pipe, avoid occurring impression on straight pipe;
3, the utility model pipe fitting bending structure arranges sleeve pipe in through hole, and the spring being positioned on sleeve pipe and through-hole wall can be eliminated radial stress, ensures hydraulic cylinder and block stable movement in the horizontal direction.
Brief description of the drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model embodiment, forms the application's a part, does not form the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is the sectional view of block;
Fig. 3 is the structural representation of block;
Fig. 4 is the sectional view of U-shaped piece;
Mark and corresponding parts title in accompanying drawing:
1-bearing support, 2-column, 3-hydraulic cylinder, 4-cannelure, 5-block, 6-half slot, 7-slide slot, 8-travel switch, 9-U shape piece, 10-roller, 11-rolling wheel support, 12-support tube, 13-support bar, 14-limited block, 15-torsionspring, 16-rotating shaft, 17-straight pipe, 18-through hole, 19-spring, 20-sleeve pipe.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment 1
As shown in Figures 1 to 4, the utility model pipe fitting bending structure, comprise bearing support 1, on described bearing support 1, column 2 is installed, on described column 2, have cannelure, hydraulic cylinder 3 is installed on bearing support 1, the output of hydraulic cylinder 3 is connected with block 5, and the just arc top to cannelure of described block 5, on described block 5, has half slot 6, on the inwall at the two ends of half slot 6 and bottom land, roller 10 is installed, roller 10 is connected with half slot 6 by rotating shaft 16; Also comprise slide slot 7, described slide slot 7 is arranged on bearing support 1, and the end, two ends of slide slot 7 is provided with travel switch 8, and described travel switch 8 is connected with the control device of hydraulic cylinder 3 by wire, in described rotating shaft 16, shock-damping structure is also installed.When the utility model uses, the straight pipe of blast pipe 17 is placed on the cannelure on column 2, primer fluid cylinder pressure 3, the output of hydraulic cylinder 3 promotes block 5 and moves to column 2 directions slide slot 7 is interior, in the time that block 5 contacts with column 2 and straight pipe 17 is clamped, roller 10 on two walls and the bottom land of half slot 6 contacts with straight pipe 17, hydraulic cylinder 3 continues in the interior movement of slide slot 7, taking cannelure just the arc of the side to block 5 push up as the strong point, the two ends of half slot 6 apply an active force to straight pipe 17 respectively, make straight pipe 17 start the bending deformation that occurs, cannelure and half slot 6 cooperatively interact, make straight pipe 17 that deformation occur gradually in bending confined space, and straight pipe 17 each several part in bending confined space is stressed evenly, avoid occurring local eminence in the knee of straight pipe 17, extend the service life of blast pipe, in the time that block 5 moves to the end of slide slot 7, the end face of block 5 contacts with the travel switch 8 on chute cell wall, travel switch 8 is connected with the control device of hydraulic cylinder 3 by wire, described hydraulic cylinder 3 is piston-type hydraulic cylinder, the control device of hydraulic cylinder 3 is oil pump, travel switch is connected with oil pump, and control oil pump is respectively to oil-out, oil-in oiling, control the flexible of hydraulic cylinder 3 with this, travel switch 8 can be controlled hydraulic cylinder 3 and quit work, avoid the excessive propelling of block 5 to cause blast pipe curved transitions and cause damage, after bend pipe operation finishes, the output rollback of hydraulic cylinder 3, drive block 5 to separate with column 2, block 5 continues to move in slide slot 7, be after travel switch 8 contacts on slide slot 7 other end cell walls, travel switch 8 is controlled hydraulic cylinder 3 and is quit work, completed the bend pipe of blast pipe.
Embodiment 2
As shown in figures 1 and 3, the present embodiment is on the basis of embodiment 1, described shock-damping structure comprises roller 10 supports and support tube 11, support tube 11 is fixed in half slot 6, roller 10 is arranged on roller 10 supports by rotating shaft 16, is provided with support bar 13 in the bottom of roller 10 supports, and support bar 13 is arranged in support tube 11, support bar 13 is provided with limited block 14, between the cylinder end of limited block 14 and support tube 11, torsionspring 15 is installed.In the time of the straight pipe 17 of blast pipe and two end in contact of half slot 6, under the progradation of hydraulic cylinder 3, roller 10 on cell wall and the bottom land of half slot 6 starts to exert pressure to straight pipe 17, straight pipe 17 occurs can apply a reaction force to half slot 6 after deformation simultaneously, be easy to cause the two ends torsional deformation of half slot 6, end at half slot 6 two ends arranges support tube 11, between support tube 11 and roller 10 supports, torsionspring 15 is installed, when roller 10 stressed, roller 10 support compression torsionsprings 15, the elastic force that torsionspring 15 produces can fall most pressure buffer, alleviate the extent of damage of half slot 6 with this, improve service life of the present utility model.
Embodiment 3
As shown in Figure 3, the present embodiment is on the basis of embodiment 1, and the angle that the axial line of the roller 10 on inwall and the bottom land at the two ends of described half slot 6 becomes is 60 °.The distribution on half slot 6 of three rollers 10 directly affects the stressing conditions of the straight pipe 17 of blast pipe, the angle that axial line between roller 10 becomes is 60 °, make straight pipe 17 in half slot 6, have three equally distributed stress points, in the time that block 5 is pushed ahead, ensure the stress balance of straight pipe 17, avoid occurring impression on straight pipe 17.
Embodiment 4
As shown in Figures 1 to 4, the present embodiment, on the basis of embodiment 1, also comprises U-shaped piece 9, and the two ends of described U-shaped piece 9 are fixed on bearing support 1, have through hole 18 at the bend of U-shaped piece 9, and the output of described hydraulic cylinder 3 is connected with block 5 through through hole 18; In described through hole 18, sleeve pipe 20 is installed, between described sleeve pipe 20 and through hole 18 inwalls, is provided with multiple springs 19.Inverted U-shaped piece 9 can play certain guide effect to the output of hydraulic cylinder 3, ensures that hydraulic cylinder 3 outputs and block 5 are in the interior stable movement of slide slot 7;
In the time that block 5 contacts with straight pipe 17, the output of hydraulic cylinder 3 can be subject to stress radially, make block 5 that certain beating occur, and then cause block 5 and the cannelure on column 2 to misplace, affect the precision of straight pipe 17 bend pipes, at the interior sleeve pipe 20 that arranges of through hole 18, be positioned at sleeve pipe 20 and radial stress can be eliminated with the spring 19 on through hole 18 walls, ensure hydraulic cylinder 3 and block 5 stable movement in the horizontal direction.
Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only detailed description of the invention of the present utility model; and be not used in limit protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. pipe fitting bending structure, comprise bearing support (1), column (2) is installed on described bearing support (1), it is characterized in that: on described column (2), have cannelure (4), hydraulic cylinder (3) is installed on bearing support (1), the output of hydraulic cylinder (3) is connected with block (5), and described block (5) is the arc top to cannelure (4) just, on described block (5), have half slot (6), on the inwall at the two ends of half slot (6) and bottom land, roller (10) is installed, roller (10) is connected with half slot (6) by rotating shaft (16); Also comprise slide slot (7), described slide slot (7) is arranged on bearing support (1), the end, two ends of slide slot (7) is provided with travel switch (8), described travel switch (8) is connected with the control device of hydraulic cylinder (3) by wire, in described rotating shaft (16), shock-damping structure is also installed.
2. pipe fitting bending structure according to claim 1, it is characterized in that: described shock-damping structure comprises rolling wheel support (11) and support tube (12), support tube (12) is fixed in half slot (6), roller (10) is arranged on rolling wheel support (11) by rotating shaft (16), be provided with support bar (13) in the bottom of rolling wheel support (11), support bar (13) is arranged in support tube (12), support bar (13) is provided with limited block (14), between the cylinder end of limited block (14) and support tube (12), torsionspring (15) is installed.
3. pipe fitting bending structure according to claim 1, is characterized in that: the angle that the axial line of the roller (10) on inwall and the bottom land at the two ends of described half slot (6) becomes is 60 °.
4. pipe fitting bending structure according to claim 1, it is characterized in that: also comprise U-shaped piece (9), the two ends of described U-shaped piece (9) are fixed on bearing support (1), have through hole (18) at the bend of U-shaped piece (9), the output of described hydraulic cylinder (3) is connected with block (5) through through hole (18).
5. pipe fitting bending structure according to claim 4, is characterized in that: sleeve pipe (20) is installed in described through hole (18), between described sleeve pipe (20) and through hole (18) inwall, is provided with multiple springs (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420215247.0U CN203817120U (en) | 2014-04-30 | 2014-04-30 | Bending structure of pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420215247.0U CN203817120U (en) | 2014-04-30 | 2014-04-30 | Bending structure of pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203817120U true CN203817120U (en) | 2014-09-10 |
Family
ID=51472663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420215247.0U Expired - Fee Related CN203817120U (en) | 2014-04-30 | 2014-04-30 | Bending structure of pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203817120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920762A (en) * | 2014-04-30 | 2014-07-16 | 成都海凌达机械有限公司 | Bending structure for exhaust pipe |
-
2014
- 2014-04-30 CN CN201420215247.0U patent/CN203817120U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920762A (en) * | 2014-04-30 | 2014-07-16 | 成都海凌达机械有限公司 | Bending structure for exhaust pipe |
| CN103920762B (en) * | 2014-04-30 | 2016-05-04 | 成都海凌达机械有限公司 | For the structure of blast pipe bending |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20150430 |
|
| EXPY | Termination of patent right or utility model |