CN113479798B - Universal angle lorry-mounted crane telescopic arm - Google Patents
Universal angle lorry-mounted crane telescopic arm Download PDFInfo
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- CN113479798B CN113479798B CN202110777281.1A CN202110777281A CN113479798B CN 113479798 B CN113479798 B CN 113479798B CN 202110777281 A CN202110777281 A CN 202110777281A CN 113479798 B CN113479798 B CN 113479798B
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- Prior art keywords
- arm
- telescopic
- main body
- hand
- cylindrical sleeve
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- 230000000903 blocking effect Effects 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/42—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with jibs of adjustable configuration, e.g. foldable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/66—Outer or upper end constructions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a telescopic arm of a universal angle lorry crane, which belongs to the field of lorry cranes and comprises a main arm main body and a telescopic assembly, wherein the main arm main body is provided with the telescopic assembly, the telescopic assembly is suitable for moving along the axial line of the main arm main body in the stretching direction, one side of the telescopic assembly, which is opposite to the main arm main body, is provided with a hand-pulled arm, the hand-pulled arm is detachably connected with the telescopic assembly, one side of the hand-pulled arm, which is opposite to the telescopic assembly, is provided with a rotating arm, the rotating arm is provided with a central hole and a circumferential hole, the telescopic assembly is provided with a positioning hole, the central hole and Zhou Xiangkong are respectively suitable for installing a positioning piece and penetrating through the positioning hole for locking, the circumferential holes are provided with a plurality of groups, and the circumferential holes are suitable for being distributed along the central circumference of the central hole and are suitable for being detachably connected with the positioning piece and rotationally adjusting the rotating arm; the invention can solve the technical problems that the rotating arm cannot be adjusted at multiple angles, and the angle adjustment is required to be completely disassembled in different working environments.
Description
Technical Field
The invention belongs to the field of truck-mounted cranes, and particularly relates to a telescopic boom of a universal angle truck-mounted crane.
Background
In the design of a traditional folding arm telescopic arm of a lorry-mounted crane, the telescopic arm realizes the extension and the shortening of the telescopic arm through a telescopic oil cylinder. The design has the defect that when working in a narrow space, the telescopic oil cylinder interferes with an object above or the hoisted object interferes with the telescopic arm body when the elevation angle of the telescopic arm is overlarge. Thereby affecting the quality and market competitiveness of the product.
The manual variable angle of the folding arm of the lorry-mounted crane in the prior art is basically a fixed angle, only two directions can be changed, and when the angle is changed, the handle pulling arm is pulled out to be turned 180 degrees, the changing angle is limited, and the adjustment can not be realized to cope with different working environments.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the rotating arm can not be adjusted at multiple angles, so that the aim of coping with different working environments is achieved, and the adjusting angle is required to be completely disassembled.
In order to solve the technical problems, the inventor obtains the technical scheme of the invention through practice and summary, the telescopic arm comprises a main arm main body and a telescopic assembly, the telescopic assembly is arranged on the main arm main body and is suitable for moving along the axial direction of the main arm main body in the stretching direction, a hand pulling arm is arranged on one side of the telescopic assembly, which is opposite to the main arm main body, and is detachably connected with the telescopic assembly, a rotating arm is arranged on one side of the hand pulling arm, which is opposite to the telescopic assembly, and is provided with a central hole and a circumferential hole, the telescopic assembly is provided with a positioning hole, the central holes and Zhou Xiangkong are respectively suitable for being provided with positioning pieces and are locked through the positioning holes, the circumferential holes are provided with a plurality of groups, the circumferential holes are suitable for being circumferentially distributed along the center of the central hole, and the circumferential holes are suitable for being detachably connected with the positioning pieces and rotationally adjusting the rotating arm.
Preferably, the telescopic assembly comprises a first telescopic arm body, a second telescopic arm body, a third telescopic arm body, a fourth telescopic arm body and a fifth telescopic arm body, wherein the first telescopic arm body, the second telescopic arm body, the third telescopic arm body, the fourth telescopic arm body and the fifth telescopic arm body are suitable for being connected in sequence along the extending direction on the axis direction of the main arm body, and the fifth telescopic arm is provided with a positioning hole and is suitable for being detachably connected with a hand pulling arm.
Preferably, the hand pulling arm is straight tube-shape, waist type hole has been seted up on the hand pulling arm, waist type hole is provided with the multiunit, multiunit waist type hole is suitable for fifth flexible arm main part and hand pulling arm detachable connection.
Preferably, a friction plate is fixedly arranged at the upper end of the hand pulling arm, a friction layer is arranged on the surface of the friction plate, and the friction plate is used for increasing friction between the outer wall of the hand pulling arm and the inner wall of the fifth telescopic arm main body.
Preferably, the swinging boom includes rotation part and hanging ear portion, circumference hole and centre bore all set up on rotation part, the lug position is located the swinging boom and is opposite to one side of hand arm, lug portion is provided with lug and is the toper setting, the both sides of lug are equipped with the limiting plate, the limiting plate is used for blockking the lifting hook and gets into inside the lug.
Preferably, the positioning member comprises a cylindrical sleeve, the rotating portion comprises side plates, two groups of side plates are arranged on the side plates, the circumferential holes and the central holes are formed in the two groups of side plates, one end of the cylindrical sleeve is rotationally connected with one group of side plates, the other end of the cylindrical sleeve extends to the central hole in the other group of side plates and penetrates through the central hole, a gear member is arranged on the cylindrical sleeve, and the rotating portion further comprises a meshing plate, and the gear member is meshed with the meshing plate;
the pin shaft is arranged in the cylindrical sleeve, the pin shaft is suitable for being sleeved in the cylindrical sleeve, a locking piece is arranged at one end, extending out of the central hole, of the cylindrical sleeve, and the locking piece is suitable for locking the cylindrical sleeve and the pin shaft.
Preferably, the gear piece comprises two groups of parallel gears, the two groups of parallel gears are fixedly connected with the cylindrical sleeve, the meshing plate is arc-shaped, and one side of the meshing plate, which is opposite to the parallel gears, is provided with tooth shapes;
the pin shaft and the cylindrical sleeve are respectively provided with a mounting hole, the locking piece comprises a limiting pin and a locking nut, the pin shaft is provided with external threads, the locking nut is suitable for locking the pin shaft outside the side plate, the limiting pin is suitable for being inserted into the cylindrical sleeve and the pin shaft, and the limiting pin is suitable for limiting the locking nut to fall out of the pin shaft.
Preferably, the two groups of side plates are provided with angle measuring ranges, the hand pulling arm is provided with a comparison plate, and the comparison plate is fixedly connected with the outer end of the hand pulling arm.
Compared with the prior art, the invention can obtain the following technical effects:
Aiming at the problem that the prior art cannot be adjusted at multiple angles, a plurality of groups of circumferential holes and central holes are designed, the included angles of the rotating arms relative to the hand pulling arms are determined by the two groups of hole positions, and the multiple angles are selected so as to cope with the actual working state, for example, the problem that the arm frame interferes with a hoisted object when the arm of a lorry-mounted crane is too short and works in a narrow space is solved, and the size or the parts of the telescopic arm are enhanced due to the change of the angle;
Secondly, even if a plurality of groups of circumferential holes are formed to finish the change of multiple angles, partial angles still cannot be effectively realized, the use range of the telescopic arm can be enlarged due to the change of a larger angle range, and secondly, the mode of realizing the angle change is not limited to manual change, the meshed transmission mode is adopted, the gear meshing also has a locking effect in the locking state of the pin shaft, the pin shaft in the circumferential holes is removed, the effect of convenient rotation is realized when the pin shaft in the central hole is loosened, the actual angle included angle can be estimated according to the angle range, and the angle required by actual work is dealt with.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.
FIG. 1 is a view showing an installation structure of embodiment 1 of the present invention;
FIG. 2 is a disassembled view of a fifth telescoping body and a hand crank of embodiment 1 of the present invention;
FIG. 3 is a disassembled view of the hand pulling arm and the rotary arm according to embodiment 1 of the present invention;
Fig. 4 is a mounting structure diagram of embodiment 2 of the present invention;
FIG. 5 is a disassembled view of the hand pulling arm and the rotating arm according to embodiment 2 of the present invention;
FIG. 6 is a sectional view showing the installation of a cylindrical sleeve according to embodiment 2 of the present invention;
Fig. 7 is a horizontal sectional view of a rotary arm according to embodiment 2 of the present invention.
In the figure: 1. a main arm body; 2. a hand pulling arm; 3. a rotating arm; 4. a central bore; 5. a circumferential hole; 6. positioning holes; 7. a first telescopic body; 8. a second telescopic body; 9. a third telescopic body; 10. a fourth telescopic body; 11. a fifth telescopic body; 12. a waist-shaped hole; 13. a friction plate; 14. lifting lugs; 15. a limiting plate; 16. a side plate; 17. a cylindrical sleeve; 18. engaging the plate; 19. a pin shaft; 20. a parallel gear; 21. a mounting hole; 22. a limiting pin; 23. a lock nut; 24. angular range; 25. control plate.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The principles of the invention will be further described with reference to the drawings and specific examples.
Example 1
As shown in fig. 1 to 3, in an embodiment of the present invention, a telescopic arm of a universal angle lorry crane includes a main arm body 1 and a telescopic assembly, the main arm body 1 is provided with the telescopic assembly, the telescopic assembly is adapted to move along an axis of the main arm body 1 in an extending direction, a hand pulling arm 2 is installed at a side of the telescopic assembly opposite to the main arm body 1, the hand pulling arm 2 is detachably connected with the telescopic assembly, a rotating arm 3 is installed at a side of the hand pulling arm 2 opposite to the telescopic assembly, central holes 4 and Zhou Xiangkong are formed in the rotating arm 3, a positioning hole 6 is formed in the telescopic assembly, the central holes 4 and Zhou Xiangkong are respectively adapted to be installed with positioning members and locked by passing through the positioning holes 6, the plurality of groups of circumferential holes 5 are provided, the plurality of groups of circumferential holes 5 are adapted to be circumferentially distributed along a center of the central hole 4, and the plurality of groups of circumferential holes 5 are adapted to be detachably connected with the positioning members and rotationally adjust the rotating arm 3.
The hand-pulling arm of the universal angle lorry-mounted crane mainly comprises a main arm and a plurality of sections of extending arms, wherein the sections of extending arms are sequentially arranged in the main arm, and the telescopic arms are driven by a telescopic oil cylinder. The telescopic arm mainly enables the moving body to extend and retract under the traction action of the telescopic cylinder or the steel wire rope by the fixed body and the moving body, so that a larger radius and a reasonable loading height are achieved; the hand pulling arm of the universal angle lorry-mounted crane is characterized in that the movable body is stretched out and retracted by the fixed body and the movable body under the manual action, so that the loading height is reasonable, namely, the lengthening part realizes convenient hoisting.
Further, the telescopic assembly is designed into a plurality of groups of telescopic arm bodies, local extension and retraction are achieved through the telescopic cylinder, the telescopic assembly comprises a first telescopic arm body 7, a second telescopic arm body 8, a third telescopic arm body 9, a fourth telescopic arm body 10 and a fifth telescopic arm body 11, the first telescopic arm body 7, the second telescopic arm body 8, the third telescopic arm body 9, the fourth telescopic arm body 10 and the fifth telescopic arm body 11 are suitable for being sequentially connected along the extension direction on the axis direction of the main arm body 1, the fifth telescopic arm body 11 is provided with a positioning hole 6 and is suitable for being detachably connected with the hand pulling arm 2, the first telescopic arm body 7 to the fifth telescopic arm body 11 are all hexagon-like rigid structure bodies, are formed by welding a plurality of rigid iron parts in a step-by-step mode, and are driven to stretch through a telescopic cylinder.
Preferably, the hand pulling arm 2 is in a straight cylinder shape, the hand pulling arm 2 is provided with waist-shaped holes 12, two groups of waist-shaped holes 12 are arranged, the two groups of waist-shaped holes 12 are suitable for the detachable connection of the fifth telescopic arm main body 11 and the hand pulling arm 2, and the effective connection is realized by installing bolts in the waist-shaped holes 12.
Further, considering that in the actual installation, even if there is bolt fixation, after long-term use, the hand-pulling arm 2 is easy to shake in the fifth telescopic arm main body 11, the friction plate 13 is fixedly arranged at the upper end of the hand-pulling arm 2, the friction layer is arranged on the surface of the friction plate 13, the friction plate 13 is used for increasing friction between the outer wall of the hand-pulling arm 2 and the inner wall of the fifth telescopic arm main body 11, and weight reducing holes are formed in the hand-pulling arm 2 and the rotating arm 3, so that the weight of the hand-pulling arm is suitable to be reduced.
The swinging boom 3 includes rotation part and hanging ear portion, and circumference hole 5 and centre bore 4 all set up on rotation part, and the lug position is located the swinging boom 3 and is facing away from the one side of hand arm 2, and lug portion is provided with lug 14 and is the toper setting, and the both sides of lug 14 are equipped with limiting plate 15, and limiting plate 15 is used for blockking the lifting hook and gets into inside the lug 14.
Example 2
As shown in fig. 4 to 7, in another embodiment of the present invention, on the basis of example 1, preferably, the positioning member includes a cylindrical sleeve 17, the rotating portion includes side plates 16, the side plates 16 are provided with two groups, the circumferential holes 5 and the center holes 4 are provided on the two groups of side plates 16, one end of the cylindrical sleeve 17 is rotatably connected with one group of side plates 16, the other end of the cylindrical sleeve 17 extends to and passes through the center holes 4 on the other group of side plates 16, a gear member is provided on the cylindrical sleeve 17, and the rotating portion further includes an engaging plate 18, and the gear member is engaged with the engaging plate 18;
the pin 19 is arranged in the cylindrical sleeve 17, the pin 19 is suitable for sleeving in the cylindrical sleeve 17, and a locking piece is arranged at one end of the cylindrical sleeve 17 extending out of the central hole 4 and is suitable for locking the cylindrical sleeve 17 and the pin 19.
The pin shaft 7 is a circular member with a flange at one end and threads at the other end, and when the hand-pulling arm 2 is nested in the fifth telescopic arm main body 11, the hand-pulling arm 2 simultaneously penetrates into the fifth telescopic arm main body 11 to be positioned in the positioning hole 6 and the kidney-shaped hole 12, so that the hand-pulling arm 2 does not relatively move in the fifth telescopic arm main body 11.
Preferably, the gear member comprises two groups of parallel gears 20, the two groups of parallel gears 20 are fixedly connected with the cylindrical sleeve 17, the meshing plate 18 is arc-shaped, and one side of the meshing plate 18 opposite to the parallel gears 20 is provided with tooth shapes;
A notch is formed at one end of the hand pulling arm 2 opposite to the rotating arm 3, and the parallel gear 20 and the engagement plate 18 are convenient to install.
The pin shaft 19 and the cylindrical sleeve 17 are provided with mounting holes 21, the locking piece comprises a limiting pin 22 and a locking nut 23, the pin shaft 19 is provided with external threads, the locking nut 23 is suitable for locking the pin shaft 19 outside the side plate 16, the limiting pin 22 is suitable for being inserted into the cylindrical sleeve 17 and the pin shaft 19, and the limiting pin 22 is suitable for limiting the locking nut 23 to fall out of the pin shaft 19.
In order to observe and know the rotation angle conveniently, the outer sides of the two groups of side plates 16 are marked with angle measuring ranges 24, a comparison plate 25 is arranged on the hand pulling arm 2, and the comparison plate 25 is fixedly connected with the outer end of the hand pulling arm 2.
Working principle: firstly, the direction of the hand pulling arm 2 of the universal angle lorry-mounted crane is arbitrarily selected according to the use requirement, the hand pulling arm 2 is nested into the fifth telescopic arm main body 11, the pin shaft 19 simultaneously penetrates into the hole of the fifth telescopic arm main body 11 and the corresponding kidney-shaped hole 12, and the limit pin 22 is fixed after the nut 8 is screwed into the thread of the pin shaft 19 to finish the installation;
When adjustment is needed, in the embodiment 1, after the two sets of pin shafts 19 are disassembled, the rotating arm 3 is manually rotated to the next corresponding position of the circumferential hole 5, and new fixation is formed after the pin shafts 19 are installed;
In the mode of embodiment 2, after the pin 19 located on Zhou Xiangkong is removed, the pin 19 located in the central hole 4 is rotated, and the parallel gear 20 is meshed with the meshing plate 18 to form effective transmission, so that the rotating arm 3 rotates to achieve a rotating effect, and then effective observation is formed through the angle range 24, thereby facilitating adjustment of the rotating arm 3.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. The utility model provides a universal angle lorry-mounted crane telescopic boom which characterized in that: the telescopic arm comprises a main arm body (1) and a telescopic assembly, wherein the telescopic assembly is arranged on the main arm body (1) and is suitable for moving along the axis of the main arm body (1) towards the stretching direction, a hand-pulling arm (2) is arranged on one side of the telescopic assembly, which is opposite to the main arm body (1), the hand-pulling arm (2) is detachably connected with the telescopic assembly, a rotating arm (3) is arranged on one side, which is opposite to the telescopic assembly, of the hand-pulling arm (2), a central hole (4) and a circumferential hole (5) are formed in the rotating arm (3), a positioning piece is arranged on the hand-pulling arm (2) and penetrates through the positioning hole (6) to be locked, a plurality of groups of circumferential holes (5) are arranged, the circumferential holes (5) are suitable for being circumferentially distributed along the center of the central hole (4), and the circumferential holes (5) are suitable for being detachably connected with the positioning piece and rotating and adjusting the rotating arm (3);
The locating piece comprises a cylindrical sleeve (17), the rotating part comprises side plates (16), the side plates (16) are provided with two groups, the circumferential holes (5) and the central holes (4) are formed in the two groups of side plates (16), one end of the cylindrical sleeve (17) is rotationally connected with one group of side plates (16), the other end of the cylindrical sleeve (17) extends to the central hole (4) in the other group of side plates (16) and penetrates through the central hole, the cylindrical sleeve (17) is provided with a gear piece, the rotating part further comprises a meshing plate (18), and the gear piece is meshed with the meshing plate (18);
a pin shaft (19) is arranged in the cylindrical sleeve (17), the pin shaft (19) is suitable for being sleeved in the cylindrical sleeve (17), a locking piece is arranged at one end, extending out of the central hole (4), of the cylindrical sleeve (17), and the locking piece is suitable for locking the cylindrical sleeve (17) and the pin shaft (19);
The gear piece comprises two groups of parallel gears (20), the two groups of parallel gears (20) are fixedly connected with the cylindrical sleeve (17), the meshing plate (18) is arc-shaped, and one side of the meshing plate (18) opposite to the parallel gears (20) is provided with tooth shapes;
The novel locking device is characterized in that mounting holes (21) are formed in the pin shaft (19) and the cylindrical sleeve (17), the locking piece comprises a limiting pin (22) and a locking nut (23), an external thread is formed in the pin shaft (19), the locking nut (23) is suitable for locking the pin shaft (19) outside the side plate (16), the limiting pin (22) is suitable for being inserted into the cylindrical sleeve (17) and the pin shaft (19), and the limiting pin (22) is suitable for limiting the locking nut (23) to fall out of the pin shaft (19).
2. The telescopic boom of a universal angle lorry-mounted crane according to claim 1, characterized in that: the telescopic assembly comprises a first telescopic arm main body (7), a second telescopic arm main body (8), a third telescopic arm main body (9), a fourth telescopic arm main body (10) and a fifth telescopic arm main body (11), wherein the first telescopic arm main body (7), the second telescopic arm main body (8), the third telescopic arm main body (9), the fourth telescopic arm main body (10) and the fifth telescopic arm main body (11) are suitable for being connected in sequence along the extending direction on the axis direction of the main arm main body (1), and the fifth telescopic arm is provided with a positioning hole (6) and is suitable for being detachably connected with a hand-pulling arm (2).
3. The telescopic boom of a universal angle lorry-mounted crane according to claim 2, characterized in that: the hand pulling arm (2) is straight tube-shape, waist type hole (12) have been seted up on the hand pulling arm (2), waist type hole (12) are provided with the multiunit, multiunit waist type hole (12) are suitable for fifth flexible arm main part (11) and hand pulling arm (2) detachable connection.
4. A telescopic boom for a universal angle lorry-mounted crane according to claim 3, characterized in that: the friction plate (13) is fixedly arranged at the upper end of the hand pulling arm (2), a friction layer is arranged on the surface of the friction plate (13), and the friction plate (13) is used for increasing friction between the outer wall of the hand pulling arm (2) and the inner wall of the fifth telescopic arm main body (11).
5. The telescopic boom of a universal angle lorry-mounted crane according to claim 4, wherein: the rotating arm (3) comprises a rotating part and a hanging lug part, the circumferential hole (5) and the central hole (4) are formed in the rotating part, the hanging lug part is located on one side, opposite to the hand pulling arm (2), of the rotating arm (3), the hanging lug part is provided with a hanging lug (14) and the hanging lug (14) is in a conical shape, limiting plates (15) are arranged on two sides of the hanging lug (14), and the limiting plates (15) are used for blocking the hanging hooks from entering the hanging lug (14).
6. The telescopic boom of a universal angle lorry-mounted crane according to claim 5, characterized in that: the two groups of side plates (16) are provided with angle measuring ranges (24) outside, a comparison plate (25) is arranged on the hand pulling arm (2), and the comparison plate (25) is fixedly connected with the outer end of the hand pulling arm (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110777281.1A CN113479798B (en) | 2021-07-09 | 2021-07-09 | Universal angle lorry-mounted crane telescopic arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110777281.1A CN113479798B (en) | 2021-07-09 | 2021-07-09 | Universal angle lorry-mounted crane telescopic arm |
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| Publication Number | Publication Date |
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| CN113479798A CN113479798A (en) | 2021-10-08 |
| CN113479798B true CN113479798B (en) | 2024-06-07 |
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| CN202110777281.1A Active CN113479798B (en) | 2021-07-09 | 2021-07-09 | Universal angle lorry-mounted crane telescopic arm |
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| CN116588826B (en) * | 2023-05-23 | 2024-01-16 | 江阴市金欧起重机械设备有限公司 | Direct-drive gantry crane for clean room |
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| CN211998570U (en) * | 2019-10-28 | 2020-11-24 | 济宁山拓机电设备有限公司 | Telescopic arm type truck-mounted crane |
| CN213622988U (en) * | 2020-10-29 | 2021-07-06 | 咸宁职业技术学院 | Shore power cable conveying device |
| CN216997402U (en) * | 2021-07-09 | 2022-07-19 | 安徽星马专用汽车有限公司 | Universal angle lorry-mounted crane telescopic boom |
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2021
- 2021-07-09 CN CN202110777281.1A patent/CN113479798B/en active Active
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| CN104386592A (en) * | 2014-05-12 | 2015-03-04 | 金鹰重型工程机械有限公司 | Lorry-mounted crane special for railways |
| CN108083135A (en) * | 2018-02-05 | 2018-05-29 | 湖南中铁五新重工有限公司 | A kind of front swing-machine and lifting equipment |
| CN211998570U (en) * | 2019-10-28 | 2020-11-24 | 济宁山拓机电设备有限公司 | Telescopic arm type truck-mounted crane |
| CN213622988U (en) * | 2020-10-29 | 2021-07-06 | 咸宁职业技术学院 | Shore power cable conveying device |
| CN216997402U (en) * | 2021-07-09 | 2022-07-19 | 安徽星马专用汽车有限公司 | Universal angle lorry-mounted crane telescopic boom |
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| CN113479798A (en) | 2021-10-08 |
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