Hydraulic crane

Abstract

The utility model discloses a hydraulic crane which comprises an advancing hoisting mechanism, double hydraulic hoisting assemblies, a lifting protection assembly and a fixing assembly, the double hydraulic hoisting assemblies are arranged on the two sides of the advancing hoisting mechanism, and the lifting protection assembly is arranged on the outer side of the double hydraulic hoisting assemblies. The fixing assembly is arranged in the center of the outer side of the dual-hydraulic lifting assembly, and the dual-hydraulic lifting assembly comprises a mounting base, a positioning cross rod, a first hydraulic cylinder body, a clamping groove, a first fixing block, a limiting sliding sleeve and a second fixing block. The hydraulic crane provided by the utility model has the advantages of multiple protection and good hoisting effect, and solves the problems that hoisting accidents are possibly caused when any hydraulic cylinder of the hydraulic crane is damaged when the hydraulic crane in the prior art is used, and the existing hydraulic crane does not have a multiple protection limiting function, so that the hoisting accidents are caused. And the hoisting risk exists in the using process of the hoisting device.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic crane technical field, concretely relates to a hydraulic crane. BACKGROUND

[0002] The crane is the multi -action hoisting machinery of vertical promotion and horizontal handling heavy object in a certain range, also called the sky crane, the navigation, the crane, the hoisting equipment has the intermittent movement characteristic, namely in a working cycle, the corresponding mechanism of taking material, moving, unloading etc.

[0003] The prior art hydraulic crane when using, when its any one hydraulic cylinder is damaged, may cause hoisting accident, because the existing hydraulic crane does not have multiple protection limiting function, leading to the hoisting risk when using, therefore, the hydraulic crane that urgently needs to overcome the above -mentioned defects. UTILITY MODEL CONTENT

[0004] The utility model discloses a hydraulic crane has multiple protection and the advantage that hoisting effect is good to solve the problem in the background art mentioned above.

[0005] To achieve the above object, the utility model provides the following technical scheme: a hydraulic crane, including advancing hoisting mechanism, double hydraulic hoisting assembly, lifting protection subassembly and fixed subassembly, double hydraulic hoisting assembly all are arranged at the both sides of advancing hoisting mechanism, lifting protection subassembly is arranged at the outside of double hydraulic hoisting assembly, fixed subassembly is arranged at the center of the outside of double hydraulic hoisting assembly, double hydraulic hoisting assembly includes mounting seat, positioning cross bar, first hydraulic cylinder body, clamping groove, first fixed block, limiting sliding sleeve, positioning base, moving wheel, mounting block, second hydraulic cylinder body and second fixed block, lifting protection subassembly includes containing seat, drive motor, first sliding slot, first sliding block, threaded rod, link rod and protection sliding seat, fixed subassembly includes U type seat, cylinder and fixed column.

[0006] Further, the positioning cross bar slides in the inner chamber of the clamping groove, the bottom of the positioning cross bar is fixedly installed with the positioning base, both sides of the bottom of the positioning base are fixedly installed with the moving wheel, the mounting block is fixedly installed at the center of the side opposite to the positioning base.

[0007] Further, the limiting sliding sleeve is fixedly installed with the second fixed block on the front and back two sides, the second fixed block is fixedly installed with the second hydraulic cylinder body on the bottom, the bottom of the second hydraulic cylinder body is fixedly connected with the top of the positioning base, the top of the second fixed block is provided with the first fixed block.

[0008] Further, the first fixed block is fixedly connected with the two sides of the limiting sliding sleeve relative to the close side, a first hydraulic cylinder body is fixedly installed on the top of the first fixed block, and a mounting seat is fixedly installed on the top of the positioning cross rod.

[0009] Further, the clamping grooves are evenly formed in the inside of the positioning cross rod, a containing seat is fixedly installed on the top of the mounting block, a driving motor is fixedly installed on the bottom of the inner cavity of the containing seat, and the first sliding grooves are formed on the two sides of the inside of the containing seat.

[0010] Further, the first sliding groove is slidably connected with a first sliding block, the first sliding block is fixedly connected with a connecting rod relative to the close side, the connecting rod is rotatably connected with a threaded rod through the inside of the connecting rod by screw threads, and the output shaft of the driving motor is fixedly connected with the bottom of the threaded rod.

[0011] Further, the bottom of the limiting sliding sleeve is provided with a protection sliding seat, the top of the connecting rod is fixedly connected with the bottom of the protection sliding seat, a U-shaped seat is fixedly installed on the side of the limiting sliding sleeve relative to the far side, and a gas cylinder is fixedly installed on the outside of the U-shaped seat.

[0012] Further, the fixing column is arranged in the inner cavity of the U-shaped seat, the side of the gas cylinder relative to the close side penetrates into the inner cavity of the U-shaped seat and is fixedly connected with the side of the fixing column relative to the far side, the side of the limiting sliding sleeve relative to the close side is fixedly connected with the two sides of the traveling hoisting mechanism, and a controller is fixedly installed on the center of the back of the traveling hoisting mechanism.

[0013] In conclusion, due to the adoption of the above-mentioned technology, the beneficial effects of the present application are:

[0014] This invention utilizes a traveling hoisting mechanism to lift and move heavy objects, a dual hydraulic lifting assembly to raise and lower the position of the traveling hoisting mechanism, a fixing assembly to fix the position of the traveling hoisting mechanism, and a lifting protection assembly to protect the dual hydraulic lifting assembly. In use, the traveling hoisting mechanism lifts the heavy object. During lifting and lowering, the first and second hydraulic cylinders are activated. The second hydraulic cylinder causes the second fixing block to move upward, while the first hydraulic cylinder causes the first fixing block to move the limiting sleeve upward, thus adjusting the height of the traveling hoisting mechanism. Even if either the first or second hydraulic cylinder fails, the limiting sleeve will still be activated. Maintaining balance with the traveling lifting mechanism, the drive motor rotates the threaded rod as the second and first hydraulic cylinder bodies start, causing the connecting rod to slowly move the protective slide block, thus protecting the bottom of the limit sleeve. When the limit sleeve moves to a certain position, the cylinder is opened, and the cylinder drives the fixed column to move inward. The fixed column passes through the slot into the interior of the positioning crossbar, thereby fixing the limit sleeve and the traveling lifting mechanism. It has the advantages of multiple protections and good lifting effect, solving the problem that when any hydraulic cylinder of the existing hydraulic crane is damaged, it may cause a lifting accident. Because the existing hydraulic crane does not have multiple protection limit functions, it has the problem of lifting risks during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the dual hydraulic lifting assembly of this utility model;

[0017] Figure 3 This is a schematic diagram of the side cross-sectional structure of the lifting protection component of this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixing component of this utility model.

[0019] In the diagram: 1. Traveling hoisting mechanism; 2. Double hydraulic lifting assembly; 21. Mounting seat; 22. Positioning crossbar; 23. First hydraulic cylinder body; 24. Slot; 25. First fixing block; 26. Limiting sleeve; 27. Positioning base; 28. Moving wheel; 29. ​​Mounting block; 291. Second hydraulic cylinder body; 292. Second fixing block; 3. Lifting protection assembly; 31. Receiving seat; 32. Drive motor; 33. First slide groove; 34. First slider; 35. Threaded rod; 36. Connecting rod; 37. Protective slide; 4. Fixing assembly; 41. U-shaped seat; 42. Cylinder; 43. Fixing column. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] This utility model provides, for example Figures 1-4 As shown, a hydraulic crane includes a traveling lifting mechanism 1, a double hydraulic lifting assembly 2, a lifting protection assembly 3, and a fixing assembly 4. The double hydraulic lifting assemblies 2 are both located on both sides of the traveling lifting mechanism 1. The lifting protection assembly 3 is located on the outer side of the double hydraulic lifting assembly 2. The fixing assembly 4 is located at the center of the outer side of the double hydraulic lifting assembly 2. The double hydraulic lifting assembly 2 includes a mounting base 21, a positioning crossbar 22, a first hydraulic cylinder body 23, a slot 24, a first fixing block 25, a limiting sleeve 26, a positioning base 27, a moving wheel 28, a mounting block 29, a second hydraulic cylinder body 291, and a second fixing block 292. The lifting protection assembly 3 includes a receiving seat 31, a drive motor 32, a first sliding groove 33, a first slider 34, a threaded rod 35, a connecting rod 36, and a protective sliding seat 37. The fixing assembly 4 includes a U-shaped seat 41, a cylinder 42, and a fixing column 43.

[0022] More specifically, the dual hydraulic lifting assembly 2 is protected by a lifting protection component 3. During use, the heavy object is lifted by the traveling lifting mechanism 1. Then, during lifting, the first hydraulic cylinder body 23 and the second hydraulic cylinder body 291 are activated. Under the action of the second hydraulic cylinder body 291, the second fixed block 292 moves upward. Simultaneously, under the action of the first hydraulic cylinder body 23, the first fixed block 25 drives the limit sleeve 26 to move upward, thereby adjusting the position and height of the traveling lifting mechanism 1. Regardless of whether the first hydraulic cylinder body 23 or the second hydraulic cylinder body 291 fails, the limit sleeve 292 will still be activated. The limiting sleeve 26 and the traveling hoisting mechanism 1 maintain balance. When the second hydraulic cylinder body 291 and the first hydraulic cylinder body 23 are started, the drive motor 32 drives the threaded rod 35 to rotate, so that the connecting rod 36 drives the protective slide 37 to move slowly, thereby protecting the bottom of the limiting sleeve 26. When the limiting sleeve 26 moves to a certain position, the cylinder 42 is opened, and the cylinder 42 drives the fixing column 43 to move inward. The fixing column 43 passes through the slot 24 into the interior of the positioning crossbar 22, thereby fixing the limiting sleeve 26 and the traveling hoisting mechanism 1. It has the advantages of multiple protections and good hoisting effect.

[0023] In some embodiments, the positioning crossbar 22 slides in the inner cavity of the slot 24, and a positioning base 27 is fixedly installed at the bottom of the positioning crossbar 22. Movable wheels 28 are fixedly installed on both sides of the bottom of the positioning base 27, and the mounting block 29 is fixedly installed at the center of the positioning base 27 on the side relatively away from the center. More specifically, the movable wheels 28 are provided to facilitate the movement of the entire device, and the mounting block 29 is provided to install the receiving seat 31.

[0024] In some embodiments, a second fixing block 292 is fixedly installed on both the front and rear sides of the limiting sleeve 26. A second hydraulic cylinder body 291 is fixedly installed on the bottom of the second fixing block 292. The bottom of the second hydraulic cylinder body 291 is fixedly connected to the top of the positioning base 27. A first fixing block 25 is provided on the top of the second fixing block 292. More specifically, the traveling hoisting mechanism 1 is lifted and moved by setting the limiting sleeve 26 to prevent the traveling hoisting mechanism 1 from falling off and shaking during movement. The positions of the second fixing block 292 and the limiting sleeve 26 are moved by setting the second hydraulic cylinder body 291.

[0025] In some embodiments, the side of the first fixing block 25 that is relatively close to each other is fixedly connected to both sides of the limiting sleeve 26. The top of the first fixing block 25 is fixedly mounted with the first hydraulic cylinder body 23. The top of the positioning crossbar 22 is fixedly mounted with the mounting seat 21. The two sides of the mounting seat 21 are fixedly connected to the side of the first hydraulic cylinder body 23 that is relatively close to each other. More specifically, the first fixing block 25 is lifted by setting the first hydraulic cylinder body 23, and moves synchronously with the second hydraulic cylinder body 291.

[0026] In some embodiments, the slots 24 are evenly distributed inside the positioning crossbar 22, the top of the mounting block 29 is fixedly mounted with a receiving seat 31, the bottom of the inner cavity of the receiving seat 31 is fixedly mounted with a drive motor 32, and the first sliding grooves 33 are all distributed on both sides inside the receiving seat 31. More specifically, the first sliding grooves 33 are used to limit the first slider 34 to prevent the first slider 34 from shaking during movement, and the first slider 34 is used to limit the connecting rod 36 to prevent the connecting rod 36 from shaking during movement.

[0027] In some embodiments, a first slider 34 is slidably connected inside the first slide groove 33, and a connecting rod 36 is fixedly installed on the side of the first slider 34 that is relatively close to it. A threaded rod 35 is rotatably connected inside the connecting rod 36 by a thread. The output shaft of the drive motor 32 is fixedly connected to the bottom of the threaded rod 35. More specifically, the position of the connecting rod 36 is indirectly moved by driving the threaded rod 35 through the drive motor 32.

[0028] In some embodiments, a protective slide block 37 is provided at the bottom of the limiting slide sleeve 26. The bottom of the protective slide block 37 is fixedly connected to the top of the connecting rod 36. The U-shaped seat 41 is fixedly installed on the side of the limiting slide sleeve 26 that is relatively far away from it. The cylinder 42 is fixedly installed on the outside of the U-shaped seat 41. More specifically, the cylinder 42 is installed by setting the U-shaped seat 41, and the bottom of the limiting slide sleeve 26 is limited by setting the protective slide block 37.

[0029] In some embodiments, the fixing column 43 is disposed in the inner cavity of the U-shaped seat 41, the cylinder 42 is fixedly connected to the fixing column 43 on the side that is relatively close to it through the inner cavity of the U-shaped seat 41, and the limiting sleeve 26 is fixedly connected to both sides of the traveling hoisting mechanism 1 on the side that is relatively close to it. A controller is fixedly installed at the center of the back of the traveling hoisting mechanism 1. More specifically, the fixing column 43 is moved by setting the cylinder 42, which passes through the slot 24 into the interior of the positioning crossbar 22 to fix the limiting sleeve 26.

[0030] Working principle:

[0031] Step 1: When in use, the heavy object is lifted by the traveling hoisting mechanism 1. Then, during lifting, the first hydraulic cylinder body 23 and the second hydraulic cylinder body 291 are opened. Under the action of the second hydraulic cylinder body 291, the second fixed block 292 moves upward. At the same time, under the action of the first hydraulic cylinder body 23, the first fixed block 25 drives the limit sleeve 26 to move upward, thereby adjusting the position and height of the traveling hoisting mechanism 1. No matter which one of the first hydraulic cylinder body 23 and the second hydraulic cylinder body 291 is damaged, the limit sleeve 26 and the traveling hoisting mechanism 1 will remain balanced.

[0032] Step 2: Simultaneously with the start of the second hydraulic cylinder body 291 and the first hydraulic cylinder body 23, the drive motor 32 drives the threaded rod 35 to rotate, causing the connecting rod 36 to slowly move the protective slide block 37, thereby protecting the bottom of the limiting slide sleeve 26. When the limiting slide sleeve 26 moves to a certain position, the cylinder 42 is opened, and the cylinder 42 drives the fixing column 43 to move inward. The fixing column 43 passes through the slot 24 into the interior of the positioning crossbar 22, thereby fixing the limiting slide sleeve 26 and the traveling hoisting mechanism 1. This has the advantages of multiple protections and good hoisting effect.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A hydraulic crane, characterized in that: The system includes a traveling hoisting mechanism (1), a double hydraulic lifting assembly (2), a lifting protection assembly (3), and a fixing assembly (4). The double hydraulic lifting assembly (2) is located on both sides of the traveling hoisting mechanism (1). The lifting protection assembly (3) is located on the outside of the double hydraulic lifting assembly (2). The fixing assembly (4) is located at the center of the outside of the double hydraulic lifting assembly (2). The double hydraulic lifting assembly (2) includes a mounting base (21), a positioning crossbar (22), a first hydraulic cylinder body (23), and a slot (…). 24) First fixing block (25), limiting slide sleeve (26), positioning base (27), moving wheel (28), mounting block (29), second hydraulic cylinder body (291) and second fixing block (292), the lifting protection component (3) includes receiving seat (31), drive motor (32), first slide groove (33), first slider (34), threaded rod (35), connecting rod (36) and protective slide (37), the fixing component (4) includes U-shaped seat (41), cylinder (42) and fixing column (43).

2. The hydraulic crane according to claim 1, characterized in that: The positioning crossbar (22) slides in the inner cavity of the slot (24). A positioning base (27) is fixedly installed at the bottom of the positioning crossbar (22). Moving wheels (28) are fixedly installed on both sides of the bottom of the positioning base (27). The mounting block (29) is fixedly installed at the center of the positioning base (27) on the side furthest away from the center.

3. The hydraulic crane according to claim 1, characterized in that: The limiting sleeve (26) is fixedly installed with a second fixing block (292) on both the front and rear sides. The bottom of the second fixing block (292) is fixedly installed with a second hydraulic cylinder body (291). The bottom of the second hydraulic cylinder body (291) is fixedly connected to the top of the positioning base (27). The top of the second fixing block (292) is provided with a first fixing block (25).

4. The hydraulic crane according to claim 1, characterized in that: The first fixing block (25) is fixedly connected to the two sides of the limiting sleeve (26) on the side that is relatively close to each other. The first hydraulic cylinder body (23) is fixedly installed on the top of the first fixing block (25). The mounting seat (21) is fixedly installed on the top of the positioning crossbar (22). The two sides of the mounting seat (21) are fixedly connected to the side that is relatively close to the first hydraulic cylinder body (23).

5. The hydraulic crane according to claim 1, characterized in that: The slots (24) are evenly opened inside the positioning crossbar (22). The top of the mounting block (29) is fixedly installed with a receiving seat (31). The bottom of the cavity of the receiving seat (31) is fixedly installed with a drive motor (32). The first slide grooves (33) are all opened on both sides inside the receiving seat (31).

6. The hydraulic crane according to claim 1, characterized in that: The first slide groove (33) is slidably connected to the first slider (34), and a connecting rod (36) is fixedly installed on the side of the first slider (34) that is relatively close to it. The connecting rod (36) is rotatably connected to a threaded rod (35) through a thread. The output shaft of the drive motor (32) is fixedly connected to the bottom of the threaded rod (35).

7. The hydraulic crane according to claim 1, characterized in that: The bottom of the limiting slide sleeve (26) is provided with a protective slide seat (37), the bottom of the protective slide seat (37) is fixedly connected to the top of the connecting rod (36), the U-shaped seat (41) is fixedly installed on the side of the limiting slide sleeve (26) that is relatively far away, and the cylinder (42) is fixedly installed on the outside of the U-shaped seat (41).

8. The hydraulic crane according to claim 1, characterized in that: The fixed column (43) is set in the inner cavity of the U-shaped seat (41). The cylinder (42) is fixedly connected to the inner cavity of the U-shaped seat (41) on the side that is relatively close to it. The fixed column (43) is fixedly connected to the side that is relatively far away from it on the side that is relatively close to it. The limiting sleeve (26) is fixedly connected to both sides of the traveling hoisting mechanism (1) on the side that is relatively close to it. A controller is fixedly installed at the center of the back of the traveling hoisting mechanism (1).

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