Hoisting device and working machine

Abstract

The application relates to the technical field of hoisting of spare parts, and discloses a hoisting device and a working machine. The hoisting device comprises a hoisting assembly and a hoisting piece. The hoisting assembly comprises a first arm section and a second arm section which are pivotally connected. When the swing arm swings to a position in the vertical direction, the hoisting assembly is located above the cab. One end of the first arm section, which is away from the second arm section, is connected with a mounting portion. The second arm section can swing in a horizontal plane relative to the first arm section. The hoisting piece is mounted at one end of the second arm section, which is away from the first arm section, and can be lifted in the height direction to separate the cab from the chassis, so that the cab can be conveniently hoisted and separated from the chassis. The second arm section can swing in a horizontal plane relative to the first arm section, thereby moving the cab to adjust the position of the cab in the horizontal direction, facilitating maintenance, and solving the technical problem that the cab is inconvenient to separate from the cab chassis in the prior art.

Description

Technical Field

[0001] This application belongs to the field of component hoisting technology, specifically relating to a hoisting device and operating machinery. Background Technology

[0002] In heavy machinery such as loaders and bulldozers, numerous hydraulic hoses and electronic components are installed in the cab. Maintenance requires detaching the cab from the chassis. Typically, detaching the cab during maintenance requires additional tools such as cranes or forklifts. However, these tools are often unavailable in field operations, making cab detachment difficult and hindering timely maintenance of the cab and chassis. Utility Model Content

[0003] The purpose of this application is to provide a hoisting device and operating machinery to solve the technical problem of inconvenience in detaching the cab from the cab chassis in the prior art.

[0004] In an embodiment of this utility model, a lifting device is proposed for use in operating machinery. The operating machinery includes a cab, a chassis, and a boom hinged to the front end of the cab. The boom has a mounting part. The lifting device includes: The lifting assembly is positioned above the cab when the boom swings to a vertical position. The lifting assembly includes a pivotally connected first boom section and second boom section. The end of the first boom section opposite to the second boom section is connected to the mounting part. The second boom section can swing in the horizontal plane relative to the first boom section. The lifting component is installed at the end of the second boom section opposite to the first boom section and can be raised and lowered in the height direction to lift the cab off the chassis.

[0005] In an embodiment of this utility model, the hoisting device further includes a first pin and a plurality of first locking members. The first arm section has a first protrusion at one end facing the second arm section, and the second arm section has a recess at one end facing the first arm section for the first protrusion to extend into. The first protrusion has a first insertion hole, and the recess has a second insertion hole. The first pin passes through the first insertion hole and the second insertion hole in sequence to pivotally connect the first protrusion and the recess. Each first locking member is sleeved on the first pin and used to limit the first pin in the height direction.

[0006] In an embodiment of this utility model, the hoisting device further includes a locking member. The first boom section has a second protrusion at one end facing the second boom section. The second protrusion and the first protrusion are arranged at intervals along the height direction. The second protrusion has a third insertion hole that is opposite to the first insertion hole along the height direction. The second protrusion has a first locking hole, and the second boom section has a second locking hole. The locking member is sequentially inserted into the first locking hole and the second locking hole to limit and lock the first boom section and the second boom section.

[0007] In an embodiment of this utility model, the hoisting device further includes a traction rope for pulling the first boom section and the second boom section. The first boom section and the second boom section are provided with multiple weight reduction notches. The two ends of the traction rope along the length direction are respectively connected to the wall surface of a weight reduction notch on the first boom section and the second boom section.

[0008] In an embodiment of this utility model, the hoisting device further includes a locking rod and a locking member. The second boom section is provided with multiple mounting holes near the end of the first boom section. The first end of the locking rod along the length direction is connected to the hoisting member, and the second end passes through the mounting hole. The locking member is sleeved on the locking rod and locks the locking rod to the second boom section.

[0009] In an embodiment of this utility model, the hoisting device further includes a connecting seat, a second pin, and a second locking member. The connecting seat includes a first insert portion, the second pin is used for pivotal connection between the first insert portion and the first boom section, and the second locking member is sleeved on the second pin and locks the second pin to the first insert portion.

[0010] In an embodiment of this utility model, the hoisting device further includes a third pin and a third locking member, and the connecting seat further includes a second insert portion. The opening of the second insert portion is opposite to the opening of the first insert portion. The third pin is used to connect the second insert portion and the mounting portion. The third locking member is sleeved on the third pin and locks the third pin to the second insert portion.

[0011] In an embodiment of this utility model, the mounting part includes two ear plates arranged in parallel and spaced apart, and a lifting shaft passing through the two ear plates. The lifting shaft is inserted into the opening of the second insertion part, and a third pin passes through the lifting shaft and the second insertion part in sequence.

[0012] In an embodiment of this utility model, the lifting component is an electric hoist, which is connected to the power input port on the chassis.

[0013] In an embodiment of this utility model, a working machine is also provided, including the hoisting device described above.

[0014] Through the above technical solutions, the hoisting device and operating machinery provided by the embodiments of this utility model have the following beneficial effects: The lifting device of this application is used in operating machinery, which includes a cab, a chassis, and a boom hinged to the front of the cab, with a mounting portion on the boom. The lifting device includes a lifting assembly and a lifting component. The lifting assembly includes a first boom section and a second boom section pivotally connected. When the boom swings to a vertical position, the lifting assembly is positioned above the cab. The end of the first boom section opposite to the second boom section is connected to the mounting portion, and the second boom section can swing horizontally relative to the first boom section. The lifting component is installed at the end of the second boom section opposite to the first boom section and can be raised and lowered in the height direction to lift the cab from the chassis. The lifting component installed on the lifting device of this application can be raised and lowered in the height direction to conveniently lift the cab and separate it from the chassis. The second boom section can swing horizontally relative to the first boom section, thereby moving the cab to achieve horizontal adjustment of the cab position, facilitating maintenance and solving the technical problem of inconvenient cab-to-chassis separation in the prior art.

[0015] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a structural diagram of the hoisting device installed on the operating machinery according to this application; Figure 2 This is a structural schematic diagram of the hoisting device from one perspective according to this application; Figure 3 This is a structural schematic diagram of the hoisting device from another perspective according to this application; Figure 4 This is a schematic diagram of the structure of the first arm segment according to this application; Figure 5 This is a schematic diagram of the structure of the second arm segment according to this application; Figure 6 This is a schematic diagram of the connector structure according to this application; Figure 7 This is a schematic diagram of the mounting part installed on the boom according to this application.

[0017] Explanation of reference numerals in the attached figures Detailed Implementation

[0018] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0019] The lifting device and working machinery according to this application are described below with reference to the accompanying drawings.

[0020] like Figure 1 As shown, in this embodiment, the lifting device of this application is used in a work machine, which includes a cab 200, a chassis 300, and a boom 100 hinged to the front end of the cab 200. The boom 100 has a mounting portion 400. The lifting device includes a lifting assembly 1 and a lifting component 2. The lifting assembly 1 includes a first boom section 11 and a second boom section 12 pivotally connected. When the boom 100 swings to a vertical position, the lifting assembly 1 is positioned above the cab 200 at intervals. The end of the first boom section 11 opposite to the second boom section 12 is connected to the mounting portion 400, and the second boom section 12 can swing horizontally relative to the first boom section 11. The lifting component 2 is installed on the end of the second boom section 12 opposite to the first boom section 11 and can be raised and lowered in the height direction to lift the cab 200 away from the chassis 300. The boom 100 can move relative to the cab 200, ensuring that the lifting component 2 is aligned with the center of the top of the cab 200, so that the cab 200 can be lifted stably. To facilitate lifting the cab 200, the top of the cab 200 can also be provided with lifting lugs, which are convenient for the hook 21 on the lifting component 2 to be engaged.

[0021] The lifting device of this application has a lifting component 2 that can be raised and lowered along the height direction to facilitate the lifting of the cab 200 and to separate the cab 200 from the chassis 300. The second boom 12 can swing relative to the first boom 11 in the horizontal plane, thereby moving the cab 200 to adjust the position of the cab 200 in the horizontal direction, which is convenient for maintenance. This solves the technical problem in the prior art that it is inconvenient to separate the cab 200 from the cab 200 chassis 300.

[0022] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in this embodiment, the hoisting device further includes a first pin 3 and a plurality of first locking members 4. The first arm section 11 has a first protrusion 111 at one end facing the second arm section 12, and the second arm section 12 has a recess 121 at one end facing the first arm section 11 for the first protrusion 111 to extend into. The first protrusion 111 is provided with a first insertion hole 113, and the recess 121 is provided with a second insertion hole 122. The first pin 3 passes through the first insertion hole 113 and the second insertion hole 122 in sequence to pivotally connect the first protrusion 111 and the recess 121. Each first locking member 4 is sleeved on the first pin 3 and is used to limit the first pin 3 in the height direction.

[0023] Specifically, when it is necessary to adjust the relative position between the cab 200 and the chassis 300, the cab 200 is first hooked onto the top of the cab 200 using the hook 21 on the lifting component 2. Then, the hook 21 is retracted to lift the cab 200 in the height direction, thus separating the cab 200 from the chassis 300. Next, since the first protrusion 111 and the recess 121 are pivotally connected by the first pin 3, the second boom 12 can be driven to swing horizontally relative to the first boom 11. This allows the lifting component 2 installed below the second boom 12 to move along with it, thereby moving the cab 200 horizontally and creating working space for workers to repair the electronic components on the chassis 300.

[0024] like Figure 2 and Figure 3 As shown, in this embodiment, the hoisting device further includes a locking member 5. The first boom section 11 has a second protrusion 112 at one end facing the second boom section 12. The second protrusion 112 and the first protrusion 111 are arranged at intervals along the height direction. The second protrusion 112 has a third insertion hole 114 that is opposite to the first insertion hole 113 along the height direction. The third insertion hole 114 is positioned corresponding to the first insertion hole 113. The first pin 3 passes through the third insertion hole 114 and the first insertion hole 113 in sequence to ensure a better pivotal connection between the first boom section 11 and the second boom section 12. The second protrusion 112 has a first locking hole 115, and the second boom section 12 has a second locking hole 123. The locking member 5 is inserted into the first locking hole 115 and the second locking hole 123 in sequence to limit and lock the first boom section 11 and the second boom section 12.

[0025] Specifically, when the position of the cab 200 does not need to be adjusted using a hoisting device, the locking member 5 is sequentially inserted into the first locking hole 115 and the second locking hole 123 to limit and lock the first boom section 11 and the second boom section 12, ensuring that the first boom section 11 and the second boom section 12 are in a straight line, effectively preventing swaying between the first boom section 11 and the second boom section 12. After the cab 200 is lifted in the height direction by the hook 21, the locking member 5 can be pulled out from the first locking hole 115 and the second locking hole 123. At this time, the limiting of the first boom section 11 and the second boom section 12 is released, and the second boom section 12 can pivot relative to the first boom section 11 and swing in the horizontal plane to leave sufficient working space for workers to repair the electronic components on the chassis 300.

[0026] like Figure 3 As shown, in this embodiment, the hoisting device further includes a traction rope 6 for pulling the first boom section 11 and the second boom section 12. Multiple weight-reducing notches 7 are provided on both the first boom section 11 and the second boom section 12. The two ends of the traction rope 6 along its length are respectively connected to the wall surface of a weight-reducing notch 7 on the first boom section 11 and the second boom section 12. A gripping space is provided between the traction rope 6 and the outer wall of the first boom section 11 and the second boom section 12, allowing workers to easily swing the first boom section 11 and the second boom section 12 relative to the mounting section 400 by manually pulling the traction rope 6.

[0027] like Figure 4 and Figure 5 As shown, in this application, the first arm segment 11 and the second arm segment 12 each have two weight-reducing notches 7, which can effectively reduce the overall weight of the first arm segment 11 and the second arm segment 12. The number of weight-reducing notches 7 can be adjusted according to actual needs. The traction rope 6 can adopt a rope structure such as hemp rope in the prior art. The two ends of the traction rope 6 along the length direction are connected to the first arm segment 11 and the second arm segment 12 respectively. In this application, one end of the traction rope 6 passes through the weight-reducing notch 7 on the first arm segment 11 and is locked to the first arm segment 11, and the other end passes through the weight-reducing notch 7 on the second arm segment 12 and is locked to the second arm segment 12, resulting in good installation stability. It should be noted that the first arm segment 11 and the second arm segment 12 form a hollow structure in the middle due to the weight-reducing notches 7. The first arm segment 11 and the second arm segment 12 can be integrally molded or assembled by welding, as long as the first arm segment 11 and the second arm segment 12 have sufficient structural strength.

[0028] like Figure 2 and Figure 3As shown, in this embodiment, the hoisting device further includes a locking rod 8 and a locking member 9. The second boom section 12, located away from the first boom section 11, has multiple mounting holes 124 near its end. The first end of the locking rod 8 along its length is connected to the hoisting member 2, and the second end passes through the mounting hole 124. The locking member 9 is sleeved on the locking rod 8 and locks the locking rod 8 to the second boom section 12. Specifically, in this application, there are two locking rods 8, both connected to the hoisting member 2. Similarly, there are also two locking members 9, each corresponding to one of the locking rods 8. The locking member 9 can lock the locking rod 8 onto the second boom section 12 via a threaded fit, ensuring that the hoisting member 2 can be securely installed on the second boom section 12.

[0029] Furthermore, a weight-reduction notch 7 is provided above the lifting component 2. Multiple mounting holes 124 in this application penetrate the inner wall of the weight-reduction notch 7. The locking rod 8 penetrates the mounting hole 124 and can extend into the weight-reduction notch 7. The locking element 9 is also located in the weight-reduction notch 7, which effectively reduces the overall space occupancy rate and can prevent the locking rod 8 and the locking element 9 from interfering with external components.

[0030] like Figure 2 , Figure 3 and Figure 6 As shown, in this embodiment, the hoisting device further includes a connecting seat 10, a second pin 20, and a second locking member 30. The connecting seat 10 includes a first insert portion 101, and the second pin 20 is used for pivotal connection between the first insert portion 101 and the first boom section 11. The second locking member 30 is sleeved on the second pin 20 and locks the second pin 20 to the first insert portion 101. Specifically, when the hoisting device moves the cab 200 horizontally, the first boom section 11 can swing around the first insert portion 101 to ensure that there is more working space between the cab 200 and the chassis 300, facilitating maintenance by personnel.

[0031] In this embodiment, the hoisting device further includes a third pin 40 and a third locking member 50. The connecting seat 10 also includes a second insert portion 102. The opening of the second insert portion 102 is opposite in direction to the opening of the first insert portion 101. The third pin 40 is used to connect the second insert portion 102 and the mounting portion 400. The third locking member 50 is sleeved on the third pin 40 and locks the third pin 40 to the second insert portion 102 to ensure that the connecting seat 10 can be stably installed on the mounting portion 400 and to ensure the reliability of the hoisting device.

[0032] It should be noted that the first locking member 4, the second locking member 30, and the third locking member 50 all use nuts as used in the prior art, and the outer walls of the first pin 3, the second pin 20, and the third pin 40 are all formed with external threads. The first locking member 4 is threadedly fitted to the first pin 3, the second locking member 30 is threadedly fitted to the second pin 20, and the third locking member 50 is threadedly fitted to the third pin 40. Furthermore, the pivotal connection between the connecting seat 10 and the first arm section 11, and the pivotal connection between the second arm section 12 and the first arm section 11, can also use a thrust bearing connection, which can also provide good swing performance. The lengths of the second arm section 12 and the first arm section 11 can be adjusted according to actual needs.

[0033] like Figure 7 As shown, in this embodiment, the mounting portion 400 includes two ear plates 410 arranged in parallel at intervals and a lifting shaft 420 passing through the two ear plates 410. The lifting shaft 420 is detachably mounted on the two ear plates 410. The lifting shaft 420 is inserted into the opening of the second insertion portion 102, and a third pin 40 passes through the lifting shaft 420 and the second insertion portion 102 in sequence to stably mount the connecting seat 10 on the mounting portion 400.

[0034] like Figure 2 and Figure 3 As shown, in this embodiment, the lifting device 2 is an electric hoist, which is connected to the power input port on the chassis 300. By using the power supply from the working machinery, the lifting device is ensured to have the ability to operate continuously. In addition, the hook 21 on the lifting device 2 can be controlled to move up and down in the height direction via a remote control to lift or lower the cab 200.

[0035] In this embodiment, a working machine is also proposed, including the lifting device described above. Since the working machine adopts all embodiments of the lifting device in this application, it also possesses all the beneficial effects of the lifting device, which will not be elaborated upon here. Using the lifting device of this application eliminates the need for additional forklifts or cranes, making it simple and convenient. The working machine includes, for example, loaders, bulldozers, and excavators. Taking an excavator as an example, during the entire excavator maintenance process, the lifting device of this application allows the cab 200 to be separated from the chassis 300 for inspection, significantly reducing maintenance costs and time compared to the prior art using forklifts and cranes.

[0036] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0039] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A lifting device for use in operating machinery, said operating machinery comprising a cab (200), a chassis (300), and a boom (100) hinged to the front end of said cab (200), characterized in that, The boom (100) has a mounting portion (400), and the lifting device includes: The lifting assembly (1) is positioned above the cab (200) when the boom (100) swings to a vertical position. The lifting assembly (1) includes a first boom section (11) and a second boom section (12) that are pivotally connected. The end of the first boom section (11) that is away from the second boom section (12) is connected to the mounting part (400). The second boom section (12) is able to swing in the horizontal plane relative to the first boom section (11). The lifting component (2) is installed on the end of the second boom (12) away from the first boom (11) and can be raised and lowered in the height direction to lift the cab (200) off the chassis (300).

2. The hoisting device according to claim 1, characterized in that, The hoisting device further includes a first pin (3) and a plurality of first locking members (4). The first arm section (11) has a first protrusion (111) at one end facing the second arm section (12), and the second arm section (12) has a recess (121) at one end facing the first arm section (11) for the first protrusion (111) to extend into. The first protrusion (111) is provided with a first insertion hole (113), and the recess (121) is provided with a second insertion hole (122). The first pin (3) passes through the first insertion hole (113) and the second insertion hole (122) in sequence to pivotally connect the first protrusion (111) and the recess (121). Each first locking member (4) is sleeved on the first pin (3) and used to limit the first pin (3) in the height direction.

3. The hoisting device according to claim 2, characterized in that, The hoisting device also includes a locking member (5). The first boom section (11) has a second protrusion (112) at one end facing the second boom section (12). The second protrusion (112) and the first protrusion (111) are arranged at intervals along the height direction. The second protrusion (112) has a third insertion hole (114) that is opposite to the first insertion hole (113) along the height direction. The second protrusion (112) has a first locking hole (115), and the second boom section (12) has a second locking hole (123). The locking member (5) is inserted into the first locking hole (115) and the second locking hole (123) in sequence to limit and lock the first boom section (11) and the second boom section (12).

4. The hoisting device according to claim 1, characterized in that, The hoisting device also includes a traction rope (6) for pulling the first boom (11) and the second boom (12). The first boom (11) and the second boom (12) are provided with multiple weight reduction notches (7). The two ends of the traction rope (6) along the length direction are respectively connected to the wall of one of the weight reduction notches (7) on the first boom (11) and the second boom (12).

5. The hoisting device according to claim 4, characterized in that, The hoisting device also includes a locking rod (8) and a locking member (9). The second boom section (12) is provided with a plurality of mounting holes (124) near the end of the end opposite to the first boom section (11). The first end of the locking rod (8) along the length direction is connected to the hoisting member (2), and the second end passes through the mounting hole (124). The locking member (9) is sleeved on the locking rod (8) and locks the locking rod (8) to the second boom section (12).

6. The hoisting device according to claim 1, characterized in that, The hoisting device further includes a connecting seat (10), a second pin (20), and a second locking member (30). The connecting seat (10) includes a first insert (101). The second pin (20) is used for pivotal connection between the first insert (101) and the first boom (11). The second locking member (30) is sleeved on the second pin (20) and locks the second pin (20) to the first insert (101).

7. The hoisting device according to claim 6, characterized in that, The hoisting device further includes a third pin (40) and a third locking member (50). The connecting seat (10) further includes a second insert (102). The opening of the second insert (102) is opposite in direction to the opening of the first insert (101). The third pin (40) is used to connect the second insert (102) and the mounting part (400). The third locking member (50) is sleeved on the third pin (40) and locks the third pin (40) to the second insert (102).

8. The hoisting device according to claim 7, characterized in that, The mounting part (400) includes two ear plates (410) arranged in parallel and spaced apart, and a lifting shaft (420) passing through the two ear plates (410). The lifting shaft (420) is inserted into the opening of the second insertion part (102), and the third pin (40) passes through the lifting shaft (420) and the second insertion part (102) in sequence.

9. The hoisting device according to any one of claims 1 to 8, characterized in that, The hoisting component (2) is an electric hoist, which is connected to the power outlet on the chassis (300).

10. A type of operating machinery, characterized in that, Includes the hoisting device according to any one of claims 1 to 9.

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