A crane luffing device, a luffing device transport vehicle, and a truss arm crane

Abstract

The present invention discloses a crane luffing device, a luffing device transport vehicle and a lattice arm crane, which belong to the technical field of cranes and include a pull plate lifting mechanism, a switching mechanism and a connecting rod for driving the lifting mechanism to turn; the pull plate lifting mechanism includes a first lifting mechanism and a second lifting mechanism; the first lifting mechanism includes a first double pull plate, a first switching pull plate and a first single pull plate arranged on the connecting rod; the switching mechanism includes a first switching mechanism and a second switching mechanism; the entire lifting mechanism can be moved to the side of the arm by rotating the first steering pull plate and the second steering pull plate, and the height of the first double pull plate and the second double pull plate can be adjusted by rotating and adjusting the first single pull plate and the second single pull plate, thereby realizing the switching of the pull plate connection on the arm to the ground connection, avoiding the risk of personnel climbing up to work, and solving the problem that the current crane luffing device needs to be assembled at high altitude, which poses a safety risk and is time-consuming and labor-intensive.

Description

Technical Field

[0001] The present invention relates to a crane luffing device, a luffing device transport vehicle and a lattice boom crane, belonging to the technical field of cranes. Background Art

[0002] Crawler cranes are essential lifting equipment in modern construction, and their luffing mechanisms play a crucial role in force transmission. Common luffing mechanisms primarily use pull plates or cables, both of which require pre-assembly on the boom. Traditionally, during the assembly and connection of the pull plates / cables, boom operators have needed to stand on the boom and connect the pull plates / cables using auxiliary equipment. This involves high-altitude work, poses safety risks, and is time-consuming and labor-intensive. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a crane luffing device, a luffing device transport vehicle and a lattice boom crane, which solve the problem that the current crane luffing device needs to be assembled at high altitude, which poses a safety risk and is time-consuming and labor-intensive.

[0004] To achieve the above-mentioned purpose / solve the above-mentioned technical problem, the present invention is implemented by adopting the following technical solution: a crane luffing device includes a pull plate lifting mechanism, a switching mechanism for driving the lifting mechanism to turn, and a connecting rod;

[0005] The pull plate lifting mechanism includes a first lifting mechanism and a second lifting mechanism;

[0006] The first lifting mechanism includes a first double pull plate provided on the connecting rod, a first adapter pull plate, and a first single pull plate provided on the first adapter pull plate for adjusting the height of the first double pull plate;

[0007] The second lifting mechanism includes a second double pull plate provided on the connecting rod, a second adapter pull plate, and a second single pull plate provided on the second adapter pull plate for adjusting the height of the second double pull plate;

[0008] The switching mechanism includes a first switching mechanism and a second switching mechanism;

[0009] The first transfer mechanism includes a first supporting pull plate provided on the crane boom and a first steering pull plate provided on the first supporting pull plate for driving the first transfer pull plate to move in a horizontal plane;

[0010] The second transfer mechanism includes a second supporting pull plate provided on the crane boom and a second steering pull plate provided on the second supporting pull plate for driving the second transfer pull plate to move in a horizontal plane.

[0011] Optionally, the first double pull plate and the second double pull plate are symmetrical about the connecting rod.

[0012] Optionally, one end of the connecting rod is hinged to the first double pull plate, the end of the first double pull plate away from the connecting rod is hinged to the first single pull plate, and the end of the first single pull plate away from the first double pull plate is hinged to the first adapter pull plate; the other end of the connecting rod is hinged to the second double pull plate, the end of the second double pull plate away from the connecting rod is hinged to the second single pull plate, and the end of the second single pull plate away from the second double pull plate is hinged to the second adapter pull plate.

[0013] Optionally, the first supporting plate, the first adapter plate, the first steering plate, the second supporting plate, the second adapter plate and the second steering plate are located on the same horizontal plane.

[0014] Optionally, one end of the first supporting pull plate is hinged to the first steering pull plate, and the end of the first steering pull plate away from the first supporting pull plate is hinged to the first adapter pull plate; one end of the second supporting pull plate is hinged to the second steering pull plate, and the end of the second steering pull plate away from the second supporting pull plate is hinged to the second adapter pull plate.

[0015] A luffing device transport vehicle includes a vehicle body and a pull plate fixing frame arranged on the vehicle body; the pull plate fixing frame includes a base plate, a first baffle arranged on the base plate, and a second baffle arranged on the base plate; a card slot is formed between the first baffle and the second baffle, and the card slot is used to place a first single pull plate, a first double pull plate, a connecting rod, a second double pull plate, and a second single pull plate folded together.

[0016] A lattice boom crane comprises the above-mentioned crane luffing device.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is provided with a lifting mechanism and a transfer mechanism. By rotating the first steering pull plate and the second steering pull plate, the entire lifting mechanism can be moved to the side of the boom. By rotating and adjusting the first single pull plate and the second single pull plate, the height of the first double pull plate and the second double pull plate can be adjusted, and the first double pull plate, the second double pull plate and the connecting rod can move together, thereby realizing the transfer of the pull plate connection on the arm to the ground connection, avoiding the risk of personnel climbing up to work, and solving the problem that the current crane luffing device needs to be assembled at high altitude, which poses a safety risk and is time-consuming and labor-intensive.

[0019] 2. By arranging the bottom plate, the first stopper and the second stopper on the vehicle body, the first single pull plate, the first double pull plate, the connecting rod, the second double pull plate and the second single pull plate can be moved to the predetermined installation position of the crane boom before being connected. During installation, the vehicle body moves forward, and the single and double pull plates located in the slots can be unfolded as the trolley moves, thereby realizing quick installation and reducing workload and labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall schematic diagram of a crane luffing device provided by an embodiment of the present invention;

[0021] Figure 2 1 is a schematic top view of a crane luffing device provided by an embodiment of the present invention;

[0022] Figure 3 1 is a front view schematic diagram of a crane luffing device provided by an embodiment of the present invention;

[0023] Figure 4 This is an overall schematic diagram of a luffing device transport vehicle provided by an embodiment of the present invention;

[0024] Figure 5 It is an overall schematic diagram of a pull plate fixing frame of a luffing device transport vehicle provided by an embodiment of the present invention.

[0025] In the figure: 1. Pull plate lifting mechanism; 101. First lifting mechanism; 1011. First double pull plate; 1012. First transfer pull plate; 1013. First single pull plate; 102. Second lifting mechanism; 1021. Second double pull plate; 1022. Second transfer pull plate; 1023. Second single pull plate; 2. Transfer mechanism; 201. First transfer mechanism; 2011. First supporting pull plate; 2012. First steering pull plate; 202. Second transfer mechanism; 2021. Second supporting pull plate; 2022. Second steering pull plate; 3. Connecting rod; 4. Vehicle body; 5. Pull plate fixing frame; 501. Bottom plate; 502. First stopper; 503. Second stopper; 6. Slot. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0029] Example 1

[0030] like Figure 1 、 Figure 2 and Figure 3 As shown, a crane luffing device includes a plate lifting mechanism 1, a transfer mechanism 2 and a connecting rod 3; the plate lifting mechanism 1 includes a first lifting mechanism 101 and a second lifting mechanism 102; the first lifting mechanism 101 includes a first double plate 1011, a first transfer plate 1012 and a first single plate 1013; the left end of the connecting rod 3 is hinged to the right end of the first double plate 1011, and the left end of the first double plate 1011 is hinged to the first single plate 1013. The right end of the connecting rod 3 is hinged to the left end of the second double pull plate 1021, and the left end of the first double pull plate 1013 is hinged to the right end of the first adapter pull plate 1012; the second lifting mechanism 102 includes a second double pull plate 1021, a second adapter pull plate 1022 and a second single pull plate 1023, the right end of the connecting rod 3 is hinged to the left end of the second double pull plate 1021, the first double pull plate 1011 and the second double pull plate 1021 are symmetrical about the connecting rod 3, and the second double pull plate 1021 is symmetrical to the first double pull plate 101 1, the right end of the second double pull plate 1021 is hinged to the left end of the second single pull plate 1023, the right end of the second single pull plate 1023 is hinged to the left end of the second adapter pull plate 1022, the length of the first single pull plate 1013, the first double pull plate 1011, the connecting rod 3, the second double pull plate 1021 and the second single pull plate 1023 corresponds to the length of the crane boom to be installed; the first single pull plate 1013 and the second single pull plate 1023 are rotated to adjust The first single pull plate 1013 is supported by the first adapter pull plate 1012, and the second single pull plate 1023 is supported by the second adapter pull plate 1022. The first double pull plate 1011, the second double pull plate 1021 and the connecting rod can move together, and the height of the first double pull plate 1011 and the second double pull plate 1021 can be adjusted. The pull plate connection on the arm is connected to the ground connection, which avoids the time-consuming and labor-intensive installation at high altitude, and the risk of high-altitude operation.

[0031] The transfer mechanism 2 includes a first transfer mechanism 201 and a second transfer mechanism 202; the first transfer mechanism 201 includes a first supporting pull plate 2011 and a first steering pull plate 2012, the first supporting pull plate 2011 is located on the crane boom, and the left end of the first supporting pull plate 2011 is installed with the pull plate on the crane boom through a pin shaft, the right end of the first supporting pull plate 2011 is hinged to the front end of the first steering pull plate 2012, and the rear end of the first steering pull plate 2012 is hinged to the left end of the first transfer pull plate 1012; the second transfer mechanism 202 includes a second supporting pull plate 2021 and a second steering pull plate 2022, the second supporting pull plate 2021 is located on the crane boom, and the right end of the second supporting pull plate 2021 is installed with the pull plate on the crane boom through a pin shaft, and the left end of the second supporting pull plate 2021 is hinged to the front end of the first steering pull plate 2012 The front end of the second steering plate 2022 is hinged, and the rear end of the second steering plate 2022 is hinged to the right end of the second adapter plate 1022. The first support plate 2011, the first adapter plate 1012, the first steering plate 2012, the second support plate 2021, the second adapter plate 1022 and the second steering plate 2022 are located in the same horizontal plane; the first steering plate 2012 uses the first support plate 2011 as the support point, and the second steering plate 2022 uses the second support plate 2021 as the support point. The first adapter plate 1012 and the second adapter plate 1022 can be translated to the side of the crane boom to facilitate height adjustment of the first lifting mechanism 101 and the second lifting mechanism 102. They can also be moved to the crane boom after the first lifting mechanism 101 and the second lifting mechanism 102 are installed.

[0032] Example 2

[0033] like Figure 4 and Figure 5As shown, a luffing device transport vehicle includes a vehicle body 4 and a pull plate fixing frame 5 arranged on the vehicle body 4; the pull plate fixing frame 5 includes a bottom plate 501, a first block 502 and a second block 503; the bottom plate 501 is fixed to the left side of the vehicle body 4, the first block 502 is installed on the top of the bottom plate 501 by bolts, the second block 503 is located on the left side of the first block 502, and the second block 503 is installed on the top of the first block 502 by bolts, and the spacing between the first block 502 and the second block 503 is the same as the spacing of the first double pull plate 1011; a slot 6 is formed between the first block 502 and the second block 503, the first single pull plate 1013, the first double pull plate 1011, and the connecting The connecting rod 3, the second double pull plate 1021 and the second single pull plate 1023 are folded together and pre-installed in the slot 6. Before the pull plates are installed, the folded first single pull plate 1013, the first double pull plate 1011, the connecting rod 3, the second double pull plate 1021 and the second single pull plate 1023 can be transported to the predetermined installation position of the crane boom. During installation, ensure that the first single pull plate 1013 can be normally connected to the first adapter pull plate 1012, and the second single pull plate 1023 can be normally connected to the second adapter pull plate 1022. The car body 4 moves forward, and the single and double pull plates located in the slot 6 can be unfolded with the movement of the trolley, thereby realizing quick installation and reducing workload and labor intensity.

[0034] Example 3

[0035] A lattice boom crane comprises the crane luffing device described in the first embodiment.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A crane luffing device, characterized in that: It includes a pull plate lifting mechanism, a switching mechanism for driving the lifting mechanism to turn, and a connecting rod; The pull plate lifting mechanism includes a first lifting mechanism and a second lifting mechanism; The first lifting mechanism includes a first double pull plate provided on the connecting rod, a first adapter pull plate, and a first single pull plate provided on the first adapter pull plate for adjusting the height of the first double pull plate; The second lifting mechanism includes a second double pull plate provided on the connecting rod, a second adapter pull plate, and a second single pull plate provided on the second adapter pull plate for adjusting the height of the second double pull plate; One end of the connecting rod is hinged to the first double pull plate, the end of the first double pull plate away from the connecting rod is hinged to the first single pull plate, and the end of the first single pull plate away from the first double pull plate is hinged to the first adapter pull plate; the other end of the connecting rod is hinged to the second double pull plate, the end of the second double pull plate away from the connecting rod is hinged to the second single pull plate, and the end of the second single pull plate away from the second double pull plate is hinged to the second adapter pull plate; The switching mechanism includes a first switching mechanism and a second switching mechanism; The first transfer mechanism includes a first supporting pull plate provided on the crane boom and a first steering pull plate provided on the first supporting pull plate for driving the first transfer pull plate to move in a horizontal plane; The second transfer mechanism includes a second supporting pull plate provided on the crane boom and a second steering pull plate provided on the second supporting pull plate for driving the second transfer pull plate to move in a horizontal plane; The first supporting plate, the first adapter plate, the first steering plate, the second supporting plate, the second adapter plate and the second steering plate are located on the same horizontal plane.

2. A crane luffing device according to claim 1, characterized in that: The first double pull plate and the second double pull plate are symmetrical about the connecting rod.

3. The crane luffing device according to claim 1, characterized in that: One end of the first supporting plate is hinged to the first steering plate, and the end of the first steering plate away from the first supporting plate is hinged to the first adapter plate; one end of the second supporting plate is hinged to the second steering plate, and the end of the second steering plate away from the second supporting plate is hinged to the second adapter plate.

4. A lattice boom crane, characterized in that: A crane luffing device comprising the one described in any one of claims 1 to 3.

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