CN203699737U - Tower crane cargo boom connector connecting mechanism - Google Patents
Tower crane cargo boom connector connecting mechanism Download PDFInfo
- Publication number
- CN203699737U CN203699737U CN201420061693.0U CN201420061693U CN203699737U CN 203699737 U CN203699737 U CN 203699737U CN 201420061693 U CN201420061693 U CN 201420061693U CN 203699737 U CN203699737 U CN 203699737U
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- CN
- China
- Prior art keywords
- connecting panel
- mounting hole
- connecting plate
- locating dowel
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000009434 installation Methods 0.000 description 11
- 210000003205 muscle Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009432 framing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model discloses a tower crane cargo boom connector connecting mechanism comprises a connecting plate I (1) and a connecting plate II (2), wherein the connecting plate I (1) is fixedly connected with one end of an arm section I (4); a mounting hole I (1.1) and a positioning pin (1.2) are arranged on the connecting plate I; the positioning pin is perpendicular to the connecting plate I; the connecting plate II is fixedly connected with one end of an arm section II (5); a mounting hole II (2.1) is formed in the connecting plate II; the mounting hole II is the same as the mounting hole I in size; a guide sleeve (2.2) fixedly connected with the connecting plate II is arranged on the connecting plate II and is perpendicular to the connecting plate II; the diameter of bore of the guide sleeve is matched with the outer diameter of the positioning pin. The tower crane cargo boom connector connecting mechanism adopts the positioning pin and the guide sleeve, is simpler in structural style and craftsmanship, easy to produce, short in production cycle, convenient to mount, safe and reliable.
Description
Technical field
The utility model relates to a kind of joint bindiny mechanism, and specifically a kind of derrick runway girder joint bindiny mechanism, belongs to tower machine mechanical field.
Background technology
Tower crane is called for short tower machine, that a kind of tower body is erect, the hoisting crane of crane arm revolution work, along with scientific and technical development, building operation is more and more higher to the performance requriements of tower crane, and crane arm is the topmost operating mechanism of tower machine and guarantees the most important mechanism of safety, derrick runway girder bears larger dynamic load, lifting is played an important role, good firm connection between crane arm joint can not only improve the stability of tower machine, and has promoted the safety performance of complete machine.
As shown in Figure 1 and Figure 2, conventionally between crane arm joint and joint, being connected of lower boom is by having tongue-and-groove 7 and the coupling end cooperation of tenon 6 and the cooperation of bearing pin 8 and pin-and-hole realizes by being connected, the spring cotter 9 of bearing pin inner side can prevent from connecting that bearing pin 8 rotates and come off from crane arm outside, this traditional connection mode can realize and connect each crane arm joint, but also has following defect:
1. under the Dynamic Loading in the time that crane arm is worked, pin-and-hole easily produces plastic deformation under the extruding of bearing pin, cause that tolerance clearance increases, pin-and-hole out of roundness increases, the power that makes bearing pin produce end float misalignment and circumferentially to rotate increases, thereby bearing pin is increased the shearing force of spring cotter, and spring cotter is cut off in the recent period, and then cause that bearing pin comes off from crane arm outside, even can cause that tower machine folding arm and overthrow accident occur;
2. tongue-and-groove and tenon generally adopt forging, manufacture craft more complicated, fabrication cycle is long, and coordinate make more complicated;
3. because the pin shaft hole of bearing pin and crane arm connecting joint belongs to little free-running fit, in the time that the relevant installation dimension deviation of framing member is larger, bearing pin is squeezed into and in crane arm connecting joint, is become very difficult, even cannot squeeze into connecting joint, therefore tongue-and-groove is higher to the accuracy requirement of relevant installation dimension after welding with crane arm joint respectively to tenon, and owing to existing relevant installation dimension error, bearing pin and pin shaft hole to exist the factors such as Mismachining tolerance all can cause bearing pin that difficulty is installed, when installation, need to beat bearing pin and greatly consume installation personnel muscle power, install more difficult;
4. crane arm joint must be considered the installing space of tongue-and-groove and tenon and bearing pin in the time of design, and the diagonal brace that each arm saves can not lean on very closely in junction, and the therefore easy local pressure in junction is unfavorable for structure stress and affects service life of framing member.
Summary of the invention
For the problems referred to above, the utility model provides a kind of derrick runway girder joint bindiny mechanism, makes simple, reasonable stress, and easy for installation, can guarantee that connection structure entirety is stressed, safe and reliable.
For achieving the above object, this derrick runway girder joint bindiny mechanism comprises connecting panel I and connecting panel II;
Connecting panel I is fixedly connected with arm joint I one end, and connecting panel I is provided with mounting hole I and is welded and fixed with connecting panel I the locating dowel pin being connected, and locating dowel pin arranges perpendicular to connecting panel I;
Connecting panel II is fixedly connected with arm joint II one end, in connecting panel II, be provided with mounting hole II corresponding to the position of mounting hole I, the size of mounting hole II and mounting hole I measure-alike, connecting panel II is provided with the orienting sleeve being fixedly connected with connecting panel II corresponding to the position of locating dowel pin, orienting sleeve arranges perpendicular to connecting panel II, and the diameter of bore size of orienting sleeve coordinates with the outside dimension of locating dowel pin.
As further improvement of the utility model scheme, described locating dowel pin is through the knock hole I that in connecting panel I, outside dimension coordinates with it, and is fixedly connected with knock hole I at its afterbody; The front end of described orienting sleeve is through the knock hole II that in connecting panel II, outside dimension coordinates with it, and its front end face is concordant with the binding face of connecting panel II, and the back side of connecting panel II is fixedly connected with orienting sleeve.
As further improvement of the utility model scheme, described locating dowel pin leading section is arranged to taper.
Compared with prior art, the location of this derrick runway girder joint bindiny mechanism is owing to adopting locating dowel pin and orienting sleeve, not to adopt tongue-and-groove and tenon structure, therefore version and manufacture craft are relatively simple, be easy to manufacture, stock size accuracy requirement can meet operating needs, thereby has saved the loaded down with trivial details operation in production process, and then promoted the efficiency of production and processing, shorten fabrication cycle, owing to adopting orienting sleeve to carry out guide-localization, and between locating dowel pin and dowel hole, there is certain gap, between the high strength bolt of connection use and bolt hole, also there is certain gap, so bindiny mechanism is lower to the accuracy requirement of relevant installation dimension, good to the adaptive capacity of manufacturing errors, therefore as long as guarantee this critical size of fixed position of locating dowel pin and locating bush, in the time connecting, relevant installation dimension has less error, do not affect entirety guiding and install yet, reduce compared with the dimension precision requirement of tongue-and-groove and tenon structure, avoided beaing while saving by bearing pin connecting arm bearing pin simultaneously, save muscle power, be convenient to install, because arm joint is fixed connection by connecting panel, what use high strength bolt connection is the crane arm arm joint lower boom of pressurized, reasonable stress, and locating dowel pin and orienting sleeve are perpendicular to connecting panel setting, the installation site outside occupying volume not, therefore the diagonal brace of each arm joint can draw closer together in junction, be beneficial to structural entity stressed, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art derrick runway girder joint bindiny mechanism;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is structural representation of the present utility model;
Fig. 4 is the B-B view of Fig. 3.
In figure: 1, connecting panel I, 1.1, mounting hole I, 1.2, locating dowel pin, 1.3, knock hole I, 2, connecting panel II, 2.1, mounting hole II, 2.2, orienting sleeve, 2.3, knock hole II, 4, arm joint I, 5, arm joint II, 6, tenon, 7, tongue-and-groove, 8, connect bearing pin, 9, spring cotter.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 3, Figure 4, this derrick runway girder joint bindiny mechanism comprises connecting panel I 1 and connecting panel II 2.
Connecting panel I 1 is welded and fixed and is connected with arm joint I 4 one end, and connecting panel I 1 is provided with mounting hole I 1.1 and is welded and fixed with connecting panel I 1 locating dowel pin 1.2 being connected, and locating dowel pin 1.2 arranges perpendicular to connecting panel I 1.
Connecting panel II 2 is welded and fixed and is connected with arm joint II 5 one end, in connecting panel II 2, be provided with mounting hole II 2.1 corresponding to the position of mounting hole I 1.1, the size of mounting hole II 2.1 and mounting hole I 1.1 measure-alike, connecting panel II 2 is provided with connecting panel II 2 and is welded and fixed the orienting sleeve 2.2 being connected corresponding to the position of locating dowel pin 1.2, orienting sleeve 2.2 arranges perpendicular to connecting panel II 2, and the diameter of bore size of orienting sleeve 2.2 coordinates with the outside dimension of locating dowel pin 1.2.
In order to guarantee Joint strenght, can make connecting panel I 1 fit tightly in the time being connected with connecting panel II 2, as further improvement of the utility model scheme, described locating dowel pin 1.2 is through the knock hole I 1.3 that in connecting panel I 1, outside dimension coordinates with it, and welds and realize locating dowel pin 1.2 and be fixedly connected with connecting panel I 1 in its afterbody and knock hole I 1.3; The front end of described orienting sleeve 2.2 is the knock hole II 2.3 through outside dimension coordinates with it in connecting panel II 2, and its front end face is concordant with the binding face of connecting panel II 2, the back side of connecting panel II 2 is realized orienting sleeve 2.2 with orienting sleeve 2.2 welding and is fixedly connected with connecting panel II 2.
Can locate fast and enter smoothly orienting sleeve 2.2 for the ease of locating dowel pin 1.2 when mounted, as further improvement of the utility model scheme, described locating dowel pin 1.2 leading sections are arranged to taper.
This derrick runway girder joint bindiny mechanism is because arm joint is fixed connection by connecting panel, and locating dowel pin and orienting sleeve are perpendicular to connecting panel setting, the installation site outside occupying volume not, therefore the diagonal brace of each arm joint can lean on very closely in junction, be beneficial to structural entity stressed, make to connect rear structural entity stressed evenly.
In the time that derrick runway girder is installed connection, lead arm joint I 4 is near arm joint II 5, locating dowel pin 1.2 in arm joint I 4 penetrates in orienting sleeve 2.2, realize the mounting hole I 1.1 of arm joint I 4 and the location of mounting hole II 2.1 installation sites of arm joint II 5, penetrate corresponding high strength bolt, packing ring and nut and tighten, realizing arm joint I 4 and be connected with arm joint the firm of II 5.
This derrick runway girder joint bindiny mechanism adopts locating dowel pin and orienting sleeve, and version and manufacture craft are relatively simple, are easy to manufacture, and fabrication cycle is short; Avoid beaing bearing pin while saving by bearing pin connecting arm, saved muscle power, be convenient to install; What use high strength bolt connection is the crane arm arm joint lower boom of pressurized, and reasonable stress is safe and reliable.
Claims (3)
1. a derrick runway girder joint bindiny mechanism, is characterized in that, comprises connecting panel I (1) and connecting panel II (2);
Connecting panel I (1) is fixedly connected with arm joint I (4) one end, and connecting panel I (1) is provided with mounting hole I (1.1) and the locating dowel pin (1.2) being fixedly connected with connecting panel I (1), and locating dowel pin (1.2) arranges perpendicular to connecting panel I (1);
Connecting panel II (2) is fixedly connected with arm joint II (5) one end, connecting panel II (2) is upper is provided with mounting hole II (2.1) corresponding to the position of mounting hole I (1.1), the size of mounting hole II (2.1) and mounting hole I (1.1) measure-alike, connecting panel II (2) is provided with the orienting sleeve (2.2) being fixedly connected with connecting panel II (2) corresponding to the position of locating dowel pin (1.2), orienting sleeve (2.2) arranges perpendicular to connecting panel II (2), and the diameter of bore size of orienting sleeve (2.2) coordinates with the outside dimension of locating dowel pin (1.2).
2. derrick runway girder joint according to claim 1 bindiny mechanism, it is characterized in that, described locating dowel pin (1.2) is through the knock hole I (1.3) that in connecting panel I (1), outside dimension coordinates with it, and is fixedly connected with knock hole I (1.3) at its afterbody; The front end of described orienting sleeve (2.2) is the knock hole II (2.3) through outside dimension coordinates with it in connecting panel II (2), and its front end face is concordant with the binding face of connecting panel II (2), the back side of connecting panel II (2) is fixedly connected with orienting sleeve (2.2).
3. derrick runway girder joint according to claim 1 and 2 bindiny mechanism, is characterized in that, described locating dowel pin (1.2) leading section is arranged to taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420061693.0U CN203699737U (en) | 2014-02-11 | 2014-02-11 | Tower crane cargo boom connector connecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420061693.0U CN203699737U (en) | 2014-02-11 | 2014-02-11 | Tower crane cargo boom connector connecting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203699737U true CN203699737U (en) | 2014-07-09 |
Family
ID=51050205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420061693.0U Expired - Lifetime CN203699737U (en) | 2014-02-11 | 2014-02-11 | Tower crane cargo boom connector connecting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203699737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113562638A (en) * | 2021-07-22 | 2021-10-29 | 大连益利亚工程机械有限公司 | Large-arm-length crane boom and crane |
-
2014
- 2014-02-11 CN CN201420061693.0U patent/CN203699737U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113562638A (en) * | 2021-07-22 | 2021-10-29 | 大连益利亚工程机械有限公司 | Large-arm-length crane boom and crane |
| CN113562638B (en) * | 2021-07-22 | 2024-01-30 | 大连益利亚工程机械有限公司 | Large-arm-length crane boom and crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
|
| CX01 | Expiry of patent term |