CN223213706U - Transport fixing device, herringbone frame and crawler crane - Google Patents
Transport fixing device, herringbone frame and crawler craneInfo
- Publication number
- CN223213706U CN223213706U CN202421754207.3U CN202421754207U CN223213706U CN 223213706 U CN223213706 U CN 223213706U CN 202421754207 U CN202421754207 U CN 202421754207U CN 223213706 U CN223213706 U CN 223213706U
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- fixing
- crank arm
- hole
- pin shaft
- supporting crank
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Abstract
The utility model discloses a transportation fixing device, a propeller strut and a crawler crane in the technical field of crawler cranes, and aims to solve the problem that a movable pulley in a fixed variable-amplitude pulley block is improperly arranged in the prior art. The movable pulley fixing device comprises a connecting part and a fixing part, wherein the fixing part comprises a supporting crank arm, a fixing seat and a fixing crank buckle, the front end of the supporting crank arm is rotatably connected to the connecting part, the rear end of the supporting crank arm is fixedly connected with the fixing seat, a limiting piece is arranged on the connecting part and used for limiting the rotation of the supporting crank arm to a horizontal position or a vertical position, two ends of the fixing crank buckle are detachably connected to the fixing seat respectively and used for fixing the movable pulley, and the movable pulley fixing device is suitable for a crawler crane and used for fixing the movable pulley in an amplitude pulley block in the transportation process and guaranteeing the safety of parts in the transportation process.
Description
Technical Field
The utility model relates to a transportation fixing device, a propeller strut and a crawler crane, and belongs to the technical field of crawler cranes.
Background
Referring to fig. 7 and 6 correspondingly, in the luffing system of a general crawler crane in the prior art, luffing motion of the crawler crane propeller strut is completed by matching a propeller strut or a mast through a steel wire rope, the luffing pulley block generally comprises a movable pulley block and a fixed pulley block, the fixed pulley is generally connected and fixed on a propeller strut main structure by using a pulley shaft, and the movable pulley is required to be installed and fixed on a fixing device on the propeller strut, so that pulley block slipping caused by shaking of a vehicle in the transportation process is avoided.
The structural design of the pulley frame knot of the amplitude pulley block is often influenced by limited space structures such as amplitude steel wire rope span size of a crane boom and span of a main arm anti-backward tilting buffer rod, so that the situation that the span of a fixed point on the pulley frame of the movable pulley block cannot be matched with the span of a main girder of the propeller strut is caused. When the span of the fixed point on the pulley yoke is smaller than the innermost span of the main beam of the propeller strut, the pulley block can not be effectively fixed, and the problem is solved for the transportation of the pulley block on the propeller strut.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of utility model
The utility model aims to overcome the defects in the prior art and provide a transportation fixing device, a propeller strut and a crawler crane, which have the advantages of simple structure, easy production and manufacture and convenient use and fixation, rotate a supporting crank arm to be in a horizontal state during use to fix a movable pulley block so as to avoid slipping, rotate the supporting crank arm to fold and retract when the movable pulley block is used, and avoid interference of the transportation fixing device during the working process
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
The utility model provides a transportation fixing device which comprises a connecting part and a fixing part, wherein the fixing part comprises a supporting crank arm, a fixing seat and a fixing crank buckle, the front end of the supporting crank arm is rotatably connected to the connecting part, the rear end of the supporting crank arm is fixedly connected with the fixing seat, a limiting piece is arranged on the connecting part and used for limiting the rotating horizontal position or the vertical position of the supporting crank arm, and two ends of the fixing crank buckle are detachably connected to the fixing seat respectively and used for fixing a movable pulley.
The connecting part comprises a welding fixing plate which is arranged at left and right intervals, the limiting piece comprises a first pin shaft, a second pin shaft, a cotter pin, an upper fixing hole and a lower rotating hole, the upper fixing hole and the lower rotating hole are formed in the welding fixing plate from top to bottom, therefore, the first pin shaft penetrates through the lower rotating hole and the supporting crank arm and then is limited and fixed through the cotter pin, and when the supporting crank arm rotates to a horizontal state or a vertical state around the first pin shaft, the second pin shaft correspondingly penetrates through the supporting crank arm and the upper fixing hole to conduct horizontal or vertical limiting.
Further, the supporting crank arm is respectively provided with a rotating fit hole, a vertical fixing hole and a horizontal fixing hole, the first pin shaft penetrates through the lower rotating hole and the rotating fit hole and then is fixed through the clamp, the second pin shaft penetrates through the vertical fixing hole and the upper fixing hole to enable the supporting crank arm to be in a vertical arrangement state, or the second pin shaft penetrates through the horizontal fixing hole and the upper fixing hole to enable the supporting crank arm to be in a horizontal arrangement state.
The fixing seat comprises a supporting plate and a groove seat, the groove seat is arranged on the supporting plate, the groove seat comprises a connecting section and a U-shaped limiting fixing groove which are integrally formed, two sides of the U-shaped limiting fixing groove are respectively extended outwards to form two connecting sections, a first connecting hole is formed in each connecting section, second connecting holes are respectively formed in two ends of the fixing curved buckle, and a third pin shaft penetrates through the first connecting hole and the second connecting hole and is clamped and fixed.
Further, the fixing seat also comprises a baffle plate, and the baffle plate is arranged on the supporting plate and is contacted with the outer side of the U-shaped limiting fixing groove.
Further, the height of the baffle is not higher than that of the U-shaped limiting and fixing groove.
The utility model provides a propeller strut, which comprises a main beam and a transportation fixing device, wherein the transportation fixing device is adopted by any one of the above, and the fixing part is rotationally connected to the main beam through the connecting part and is used for being matched with a movable pulley of an amplitude pulley block to limit and fix.
In a third aspect, the utility model provides a crawler crane, which comprises an amplitude-variable pulley block and a herringbone frame, wherein the amplitude-variable pulley block and the herringbone frame are matched and arranged on a host, and the herringbone frame is fixed on the host through a pulling plate.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a transportation fixing device, which is characterized in that a connecting part of the transportation fixing device can be fixed on a herringbone frame, a supporting crank arm in a matched fixing part rotates around the connecting part, a limiting part is used for assisting in supporting the supporting crank arm to limit the supporting crank arm to a horizontal position or a vertical position, when the supporting crank arm is in a working state, the limiting part is matched with the supporting crank arm to be in a horizontal state, a movable pulley in an amplitude pulley block is fixedly limited between a fixed bent buckle and a fixed seat, the phenomenon that the movable pulley slides forwards and backwards in the transportation process is avoided, the safe transportation of the amplitude pulley block is ensured, and the whole transportation fixing device is simple in structure and easy to manufacture.
The limiting piece is a first pin shaft, a second pin shaft, an upper fixing hole and a lower rotating hole which are arranged on the welding fixing plate. The first pin shaft is assembled with the lower rotating hole to be matched with the supporting crank arm to be connected in a rotating way, and when the supporting crank arm rotates to be in a horizontal state or a vertical state around the first pin shaft, the second pin shaft correspondingly penetrates through the supporting crank arm and the upper fixing hole to realize horizontal or vertical limiting. The limiting piece is simple in structure and easy to operate and install. The U-shaped limiting and fixing groove on the fixing seat is used for being matched with the fixed handle of the movable pulley, the connecting section of the fixed curved buckle and the fixing seat is fixedly connected through the third pin shaft, the movable pulley is fixed in the fixing seat, the movable pulley is prevented from moving forwards and backwards during transportation, one side of the U-shaped limiting and fixing groove is provided with a baffle, the baffle can limit the movable pulley in the axial direction, and the movable pulley is prevented from moving leftwards and rightwards during transportation.
Drawings
FIG. 1 is a schematic view of the overall structure of a transportation and fixing device according to the present utility model;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
FIG. 3 is a disassembled view of FIG. 2;
FIG. 4 is a schematic view of the use state of FIG. 1;
FIG. 5 is a schematic view of the non-use configuration of FIG. 1;
The prior luffing pulley block in FIG. 6 is fixed on a bottom knuckle arm and is transported and used along with the whole machine;
FIG. 7 is a schematic illustration of the use of a prior art stationary device for fixing a luffing pulley block;
The device comprises a supporting crank arm, a fixed seat, a fixed buckle, a welding fixing plate, a first pin shaft, a second pin shaft, a split pin, an upper fixing hole, a lower rotating hole, a 10 rotating fit hole, a 11 vertical fixing hole, a 12 horizontal fixing hole, a 13 supporting plate, a 14 connecting section, a 15U-shaped limiting fixing groove, a 16 first connecting hole, a 17 second connecting hole, a 18 third pin shaft, a 19 baffle plate, a 20, a clip, a 21, a propeller strut, a 22, a girder, a 23, a pulling plate, a 24, a crawler crane, a 25, a fixed handle, a 26 and an amplitude pulley block.
Detailed Description
The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
The utility model provides a transportation fixing device which comprises a connecting part and a fixing part. The fixing part comprises a supporting crank arm, a fixing seat and a fixing crank buckle. The front end of the supporting crank arm is rotationally connected with the connecting part, and the rear end of the supporting crank arm is fixedly connected with the fixing seat. The connecting part is fixedly arranged on the equipment parts which are required to be matched. And the connecting part is provided with a limiting part which is used for limiting the rotation of the supporting crank arm to a horizontal position or a vertical position. The two ends of the fixed curved buckle are detachably connected with the fixed seat respectively and are used for limiting and fixing the movable pulley. The specific implementation mode is as follows:
example 1
As shown in connection with fig. 1 to 5, the present embodiment provides specific connection portions and fixing portions. The connecting part comprises two welding fixed plates 4, and the two welding fixed plates 4 are arranged at left and right intervals. The limiting piece on the connecting part comprises a first pin shaft 5, a second pin shaft 6, a cotter pin 7, an upper fixing hole 8 and a lower rotating hole 9. The upper fixing hole 8 and the lower rotating hole 9 are formed on the welding fixing plate 4 from top to bottom. After the first pin shaft 5 penetrates through the lower rotating hole 9 and the supporting crank arm 1, the cotter pin 7 is used for limiting and fixing the first pin shaft 5, so that the supporting crank arm 1 is rotationally connected to the welding fixing plate 4. When the supporting crank arm 1 rotates around the first pin shaft 5 to be in a horizontal state, the second pin shaft 6 penetrates through the supporting crank arm 1 and the upper fixing hole 8 and is fixedly limited by being matched with the clip 20, so that the supporting crank arm 1 is in a horizontal setting state. Or when the supporting crank arm 1 rotates around the first pin shaft 5 to be in a vertical state, the second pin shaft 6 correspondingly penetrates through the supporting crank arm 1 and the upper fixing hole 8 and is matched with the clip 20 to be fixed, so that the supporting crank arm 1 is in a vertical setting state.
In correspondence with the above, as shown in fig. 2 and 3, a rotation fitting hole 10, a vertical fixing hole 11 and a horizontal fixing hole 12 are formed in the supporting crank arm 1. The first pin shaft 5 penetrates through the lower rotating hole 9 and the rotating fit hole 10 and is limited and fixed by the clip 20, so that the crank arm 1 is supported to rotate around the connecting part. As shown in fig. 5, the second pin shaft 6 penetrates through the vertical fixing hole 11 and the upper fixing hole 8, and is fixed by the clip 20, so that the supporting crank arm 1 is in a vertical arrangement state. As shown in fig. 4, the second pin shaft 6 penetrates through the horizontal fixing hole 12 and the upper fixing hole 8, so that the supporting crank arm 1 is in a horizontally arranged state.
As shown in fig. 2, the fixing base 2 includes a supporting plate 13 and a slot base. The groove seat is arranged on the supporting plate 13. The groove seat comprises an integrally formed connecting section 14 and a U-shaped limiting and fixing groove 15. Two sides of the U-shaped limiting and fixing groove 15 are respectively extended outwards to form two connecting sections 14. That is, there are four connecting sections 14, each connecting section 14 is provided with a first connecting hole 16, and two corresponding ends of the fixing buckle 3 are respectively provided with a second connecting hole 17. When the fixing buckle 3 is assembled, the third pin shaft 18 correspondingly penetrates through the first connecting hole 16 and the second connecting hole 17. When the movable pulley is fixed, the pin shafts at one end of the fixed curved buckle 3 can be removed, or after the pin shafts at two ends of the fixed curved buckle 3 are removed, the U-shaped limiting and fixing groove 15 is placed in the fixed handle 25 of the movable pulley, and the third pin shaft 18 is used for fixing the fixed curved buckle 3, so that the movable pulley is limited between the U-shaped limiting and fixing groove 15 and the fixed curved buckle 3.
Optionally, as shown in fig. 2 and 3, the fixing base 2 further includes a baffle 19, where the baffle 19 is fixedly disposed on the supporting plate 13 and is disposed in contact with the outer side of the U-shaped limiting fixing groove 15. The outer side of the U-shaped limit fixing groove 15 is the side close to the connecting part. The U-shaped limiting and fixing groove 15 is used for avoiding the sliding phenomenon of the movable pulley in front and back during transportation. The height of the baffle 19 is not higher than the height of the U-shaped limit fixing groove 15. In the transportation process, when the movable pulley is clamped with the U-shaped limiting and fixing groove 15 due to the action of an external force environment, the baffle 19 is arranged at a high level, so that an external tool can conveniently act on the inner side of the baffle to assist in lifting the fixed handle 25 of the movable pulley, and in addition, the baffle 19 also effectively prevents the left-right (moving along the axial direction of the movable pulley) movement of the fixed handle 25 of the movable pulley in the transportation process.
Example two
The present embodiment provides a propeller strut 21, with reference to fig. 4 and 5, comprising a main beam 22 and a transportation fixing device as described in any of the above embodiments, wherein the fixing part of the transportation fixing device is rotatably mounted on the main beam 22 through a connecting part, and is fixedly limited by a movable pulley in cooperation with an amplitude pulley block 26. The transportation fixing device described in the first embodiment is adopted in the propeller strut 21 in this embodiment, and the technical effects produced by the transportation fixing device are the same as those produced in the first embodiment, and are not described again.
Examples
With reference to fig. 6, this embodiment provides a crawler crane 24 comprising a main machine, a luffing pulley block 26 and a propeller strut 21 as described in the second embodiment above. The propeller strut 21 is arranged on the main machine through a pull plate 23. The variable amplitude pulley block 26 is matched and arranged on the host machine according to actual requirements, wherein a movable pulley in the variable amplitude pulley block 26 can be matched and fixed on a transportation fixing device on the propeller strut 21 through the specific working state of the crawler crane 24. The technical effect of the propeller strut 21 according to the second embodiment is the same as that of the second embodiment, and detailed description thereof will be omitted.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.
Claims (8)
1. The transportation fixing device is characterized by comprising a connecting part and a fixing part, wherein the fixing part comprises a supporting crank arm, a fixing seat and a fixing buckle, the front end of the supporting crank arm is rotatably connected to the connecting part, the rear end of the supporting crank arm is fixedly connected with the fixing seat, a limiting piece is arranged on the connecting part and used for limiting the rotation of the supporting crank arm to a horizontal position or a vertical position, and two ends of the fixing buckle are detachably connected to the fixing seat respectively and used for fixing a movable pulley.
2. The transportation fixing device according to claim 1, wherein the connecting portion comprises welding fixing plates which are arranged at intervals left and right, the limiting piece comprises a first pin shaft, a second pin shaft, a cotter pin, an upper fixing hole and a lower rotating hole, the upper fixing hole and the lower rotating hole are formed in the welding fixing plates from top to bottom, the first pin shaft penetrates through the lower rotating hole and the supporting crank arm and then is limited and fixed through the cotter pin, and when the supporting crank arm rotates around the first pin shaft to be in a horizontal state or a vertical state, the second pin shaft correspondingly penetrates through the supporting crank arm and the upper fixing hole to conduct horizontal or vertical limiting.
3. The transportation fixing device according to claim 2, wherein the supporting crank arm is provided with a rotation matching hole, a vertical fixing hole and a horizontal fixing hole respectively, a first pin shaft penetrates through the lower rotation hole and the rotation matching hole and then is fixed through a clip, the second pin shaft penetrates through the vertical fixing hole and the upper fixing hole to enable the supporting crank arm to be in a vertical setting state, or the second pin shaft penetrates through the horizontal fixing hole and the upper fixing hole to enable the supporting crank arm to be in a horizontal setting state.
4. The transportation fixing device according to claim 1 or 2, wherein the fixing seat comprises a supporting plate and a groove seat, the groove seat is arranged on the supporting plate, the groove seat comprises a connecting section and a U-shaped limiting fixing groove which are integrally formed, two connecting sections are respectively and outwards extended from two sides of the U-shaped limiting fixing groove, a first connecting hole is formed in each connecting section, second connecting holes are respectively formed in two ends of the fixing curved buckle, and a third pin shaft penetrates through the first connecting holes and the second connecting holes and then is clamped and fixed.
5. The transportation fixing device according to claim 4, wherein the fixing base further comprises a baffle plate, and the baffle plate is arranged on the supporting plate and is in contact with the outer side of the U-shaped limiting fixing groove.
6. The shipping fixture of claim 1, wherein the height of the baffle is no higher than the height of the U-shaped limit groove.
7. The herringbone frame is characterized by comprising a main beam and a transportation fixing device according to any one of claims 1 to 6, wherein the fixing part is rotationally connected to the main beam through the connecting part and is used for being matched with a movable pulley of an amplitude pulley block to limit and fix.
8. The crawler crane is characterized by comprising an amplitude pulley block matched with a host machine and the herringbone frame as claimed in claim 7, wherein the herringbone frame is fixed on the host machine through a pulling plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421754207.3U CN223213706U (en) | 2024-07-24 | 2024-07-24 | Transport fixing device, herringbone frame and crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421754207.3U CN223213706U (en) | 2024-07-24 | 2024-07-24 | Transport fixing device, herringbone frame and crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223213706U true CN223213706U (en) | 2025-08-12 |
Family
ID=96654110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421754207.3U Active CN223213706U (en) | 2024-07-24 | 2024-07-24 | Transport fixing device, herringbone frame and crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223213706U (en) |
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2024
- 2024-07-24 CN CN202421754207.3U patent/CN223213706U/en active Active
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