Protective device for working machine and working machine

Abstract

The utility model discloses a protective device for an operation machine and the operation machine. The protective device comprises a protective fence and a protective cover, the first connecting assembly is arranged on the protective fence and is used for connecting the protective fence with a first mounting piece of the operation machine; and the second connecting assembly is located between the protective fence and a second mounting piece of the operation machine and can adaptively compensate for the height mounting error between the protective fence and the second mounting piece. The protection device is simple in structure, can adaptively compensate for height installation errors, and can reduce the types of materials and avoid the generation of prestress.

Description

Technical Field

[0001] The present application belongs to the technical field of operating machinery, and specifically relates to a protective device for an operating machinery and an operating machinery. Background Art

[0002] Most existing working machines (such as excavators) are equipped with protective devices to protect operators or parts of the working machines. However, due to manufacturing errors, there may be height errors between the installation position of the protective device and its corresponding mounting parts. When installing existing protective devices, various specifications of adjustment gaskets are usually used to pad between the protective device and its mounting parts (such as Figure 4 and Figure 5 As shown), the height gap between the two is compensated, but the number of adjusting gaskets used in this method is uncontrollable, and the opening needs to be centered when the adjusting gasket is inserted into the gap, which is inconvenient to operate and has a low aesthetic appearance. Too many gaskets are prone to loosening, and the management cost is increased due to the excessive variety of materials. If the gap is too large and the gaskets are insufficient, the protective device is easily forced to be installed, which will produce excessive prestress and is prone to breakage in the later stage. Utility Model Content

[0003] The purpose of the present application is to provide a protective device for an operating machine and an operating machine. The protective device has a simple structure, can adaptively compensate for height installation errors, can reduce material types and avoid prestress.

[0004] In order to achieve the above-mentioned object, the first aspect of the present application provides a protective device for a working machine, the protective device comprising:

[0005] Guardrails;

[0006] A first connecting component, disposed on the guardrail and used to connect the guardrail and a first mounting member of the operating machine;

[0007] The second connecting component is located between the guardrail and the second mounting member of the working machine and can adaptively compensate for the height installation error between the guardrail and the second mounting member.

[0008] In an embodiment of the present application, the second connection component includes:

[0009] A connecting rod, rotatably connected to the guardrail at a first preset position;

[0010] A first connecting seat is rotatably connected to an end of the connecting rod away from the guardrail;

[0011] The first connecting member is arranged on the first connecting seat in a transversely movable manner and is used to connect the first connecting seat and the second mounting member.

[0012] In an embodiment of the present application, the first connecting seat includes a planar connecting portion and a rotating connecting portion rotatably connected to the connecting rod. The planar connecting portion is provided with a first strip-shaped connecting hole distributed along the transverse direction, and the connecting end of the first connecting member passes through the first strip-shaped connecting hole to be connected to the second mounting member.

[0013] In an embodiment of the present application, a first accommodating space is formed on the rotating connection part for part of the connecting rod to extend into, and the protective device also includes a first screw and a first nut. The first end of the first screw is clamped on the side end surface of the rotating connection part, and the second end of the first screw passes through the rotating connection part, the connecting rod and is threadedly connected to the first nut.

[0014] In an embodiment of the present application, the protective device further comprises a first washer which is sleeved on the first screw rod and is in close contact with the side end surface of the rotating connection part.

[0015] In an embodiment of the present application, the protective device also includes a second connecting seat, a second screw and a second nut. The second connecting seat is arranged on the guardrail and forms a second accommodating space for part of the connecting rod to extend into. The first end of the second screw is clamped on the side end surface of the second connecting seat, and the second end of the second screw passes through the second connecting seat and the connecting rod and is threadedly connected to the second nut.

[0016] In an embodiment of the present application, the protective device further includes a second washer which is sleeved on the second screw rod and is tightly attached to the side end surface of the second connecting seat.

[0017] In an embodiment of the present application, the first connecting component includes a plurality of connecting plates each of which is arranged at the bottom of the guardrail and has second strip-shaped connecting holes distributed along the longitudinal direction. The protective device also includes a second connecting member, and the connecting end of the second connecting member passes through the second strip-shaped connecting hole and is connected to the first mounting member.

[0018] In an embodiment of the present application, the protective device further includes a third gasket which is sleeved on the second connecting member and is tightly attached to the top surface of the connecting plate.

[0019] A second aspect of the present application provides a working machine, which includes the above-mentioned protective device for the working machine.

[0020] It can be known from the above technical scheme that the protective device includes a guardrail, a first connecting component and a second connecting component. The first connecting component is arranged on the guardrail and is used to connect the guardrail and the first mounting part of the operating machinery; the second connecting component is located between the guardrail and the second mounting part of the operating machinery and can adaptively compensate for the height installation error between the guardrail and the second mounting part. By using the second connecting component, the height installation error between the guardrail and the second mounting part can be adaptively compensated during the installation process, without the need to use an adjustment gasket to compensate for the height gap between the second connecting component and the second mounting part as in the prior art. The prestress caused by the installation can be eliminated, making the overall structure of the protective device more stable and reliable, and can be better suitable for protective devices and operating machinery with low manufacturing precision. The use of adjustment gaskets can be eliminated, reducing the types of materials, which is beneficial to saving production costs and material management costs, and can also improve the aesthetics.

[0021] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the protective device in the embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of the partial structure of the protective device in the embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the explosion structure of the protection device in the embodiment of the utility model;

[0026] Figure 4 It is a structural schematic diagram of a protective device in the prior art;

[0027] Figure 5 It is a schematic diagram of the partial structure of the protective device in the prior art.

[0028] Description of Reference Numerals

[0029] 1 Guardrail 2 First connection component

[0030] 201 connecting plate 2011 second strip connecting hole

[0031] 3 First mounting member 4 Second connecting component

[0032] 401 connecting rod 402 first connecting seat

[0033] 4021 plane connection part 4022 rotation connection part

[0034] 4023 first strip-shaped connecting hole 4024 first accommodation space

[0035] 403 first connecting piece 5 second mounting piece

[0036] 6 First screw 7 First washer

[0037] 8 Second connecting seat 801 Second accommodation space

[0038] 9 Second screw 10 Second washer

[0039] 11 Second gasket 12 Third gasket

[0040] 13 Adjusting shims DETAILED DESCRIPTION

[0041] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0042] In an embodiment of the present application, a protective device for an operating machine is provided, such as Figure 1-Figure 3 As shown, the protective device includes:

[0043] Guardrail 1;

[0044] A first connecting component 2, which is arranged on the guardrail 1 and is used to connect the guardrail 1 and a first mounting member 3 of the operating machine;

[0045] The second connecting component 4 is located between the guardrail 1 and the second mounting member 5 of the working machine and can adaptively compensate for the height installation error between the guardrail 1 and the second mounting member 5 .

[0046] Specifically, the working machine in this embodiment can be selected as an excavator, the guardrail 1 is distributed in the vertical direction, the second mounting member 5 is arranged on the first mounting member 3, the first mounting surface of the first mounting member 3 is the top surface of the first mounting member 3, and the second mounting surface of the second mounting member 5 is the top surface of the second mounting member 5; the first connecting component 2 is arranged at the bottom of the guardrail 1, that is, the guardrail 1 is installed on the first mounting surface of the first mounting member 3 through the first connecting component 2; the second connecting component 4 is connected to the first preset position of the guardrail 1 and is located above the first connecting component 2, and the guardrail 1 is connected to the second mounting surface of the second mounting member 5 through the second connecting component 4. If it is caused by a manufacturing error If there is a height difference between the first preset position and the second mounting surface, the height installation error can be adaptively compensated for by using the second connecting component 4 during the installation process, without the need to use the adjusting gasket 13 to compensate for the height gap between the second connecting component 4 and the second mounting component 5 as in the prior art. The prestress caused by the installation can be eliminated, making the overall structure of the protective device more stable and reliable, and can be better suitable for protective devices and operating machinery with low manufacturing precision. The use of the adjusting gasket 13 can be eliminated, reducing the types of materials, which is beneficial to saving production costs and material management costs, and can also improve the aesthetics.

[0047] In one embodiment of the present application, the second connection component 4 includes:

[0048] The connecting rod 401 is rotatably connected to the guardrail 1 at a first preset position;

[0049] The first connecting seat 402 is rotatably connected to the end of the connecting rod 401 away from the guardrail 1;

[0050] The first connecting member 403 is disposed on the first connecting seat 402 in a transversely movable manner and is used to connect the first connecting seat 402 and the second mounting member 5 .

[0051] Specifically, the transverse direction in this embodiment refers to a direction perpendicular to the length direction of the guardrail 1 (eg Figure 1As shown in the figure, by changing the angle between the connecting rod 401 and the vertical plane, the vertical gap between the first connecting seat 402 and the second mounting member 5 can be adjusted, so that the height installation error between the first preset position and the second mounting member 5 can be adaptively compensated, and this compensation is stepless adjustment compensation; the first connecting seat 402 is rotatably connected to the end of the connecting rod 401 away from the guardrail 1, so that the installation angle of the first connecting seat 402 can be adaptively adjusted, so that the installation surface of the first connecting seat 402 (that is, the bottom surface of the first connecting seat 402) can be better aligned with the guardrail 1. The second mounting surface of the second mounting member 5 is in fit with each other; further, when the angle between the connecting rod 401 and the vertical plane changes, the vertical distance between the first connecting seat 402 and the guardrail 1 on the horizontal plane will also change accordingly, while the position where the second mounting member 5 is connected to the first connecting seat 402 will not change. Therefore, in this case, the lateral mounting position of the first connecting member 403 on the first connecting seat 402 should be adaptively adjusted (this lateral mounting position adjustment is a stepless adjustment) to achieve the connection between the first connecting seat 402 and the second mounting member 5.

[0052] In this embodiment, if there is only a lateral installation error between the guardrail 1 and the second mounting member 5 (i.e., there is no height installation error between the guardrail 1 and the second mounting member 5 at this time), that is, only the above-mentioned lateral installation error needs to be compensated, the installer can adaptively change the lateral installation position of the first connecting member 403 on the first connecting seat 402 according to the above-mentioned lateral installation error. The second connecting component 4 of the above-mentioned structural form can adaptively and steplessly compensate for the lateral installation error between the guardrail 1 and the second mounting member 5, and can also adaptively and steplessly compensate for the height installation error between the guardrail 1 and the second mounting member 5, which is conducive to further expanding the scope of application of the protective device. In addition, manufacturers can also reduce the time for on-line assembly, reduce the types of materials and speed up production progress through pre-assembly.

[0053] In one embodiment of the present application, the first connecting seat 402 includes a planar connecting portion 4021 and a rotating connecting portion 4022 rotatably connected to the connecting rod 401, and the planar connecting portion 4021 is provided with a first strip-shaped connecting hole 4023 distributed along the transverse direction, and the connecting end of the first connecting member 403 passes through the first strip-shaped connecting hole 4023 to be connected to the second mounting member 5.

[0054] Specifically, the rotating connection part 4022 is arranged on the planar connection part 4021 and is perpendicular to the planar connection part 4021. The first strip-shaped connection hole 4023 can be rectangular or waist-shaped and extend laterally. The first connecting member 403 in this embodiment can be optionally a screw or a bolt, and the threaded end of the first connecting member 403 is its connection end. When the vertical distance between the planar connection part 4021 and the guardrail 1 on the horizontal plane changes, the installer adaptively adjusts the installation position of the first connecting member 403 in the first strip-shaped connection hole 4023, so that the threaded end of the first connecting member 403 can be threadedly connected to the threaded connection hole on the second mounting member 5 after passing through the first strip-shaped connection hole 4023.

[0055] In one embodiment of the present application, a first accommodating space 4024 is formed on the rotating connection part 4022 for a portion of the connecting rod 401 to extend into, and the protective device also includes a first screw rod 6 and a first nut. The first end of the first screw rod 6 is clamped on the side end surface of the rotating connection part 4022, and the second end of the first screw rod 6 passes through the rotating connection part 4022, the connecting rod 401, and is threadedly connected to the first nut.

[0056] Specifically, the rotating connection part 4022 includes a first plate body and a second plate body welded on the plane connection part 4021 and distributed in parallel and spaced apart, a first accommodating space 4024 is formed between the first plate body and the second plate body, the first end of the first screw rod 6 is clamped on the side end surface of the first plate body, the second end of the first screw rod 6 passes through the first plate body, the connecting rod 401, and the second plate body in sequence and is threadedly connected with the first nut, the above-mentioned components have a simple structure, which can not only meet the connection requirements between the rotating connection part 4022 and the connecting rod 401, but also have the advantages of low cost and easy production and manufacturing. In the process of installing the protective device, the installer first pre-connects the connecting rod 401 and the first connecting seat 402 together through the first screw rod 6 and the first nut (that is, the first screw rod 6 and the first nut are not completely tightened), after adjusting the installation position of the first connecting member 403 and stably and reliably installing the first connecting seat 402 and the second mounting member 5 together through the first connecting member 403, the installer then completely tightens the first screw rod 6 and the first nut, which can avoid the generation of prestress to ensure the installation stability of the protective device.

[0057] In one embodiment of the present application, the protective device also includes a first washer 7 which is sleeved on the first screw rod 6 and is tightly attached to the side end surface of the rotating connection part 4022. Specifically, the first washer 7 is located between the rod head of the first screw rod 6 and the rotating connection part 4022, which can protect the side end surface of the rotating connection part 4022 from being scratched by the first screw rod 6, and can also disperse the pressure of the rod head of the first screw rod 6 on the rotating connection part 4022, and can also prevent the first screw rod 6 and the first nut from loosening when the two vibrate, thereby further ensuring the connection stability between the connecting rod 401 and the first connecting seat 402.

[0058] In one embodiment of the present application, the protective device also includes a second connecting seat 8, a second screw rod 9 and a second nut. The second connecting seat 8 is arranged on the guardrail 1 and forms a second accommodating space 801 for part of the connecting rod 401 to extend into. The first end of the second screw rod 9 is clamped on the side end surface of the second connecting seat 8, and the second end of the second screw rod 9 passes through the second connecting seat 8 and the connecting rod 401 and is threadedly connected to the second nut.

[0059] Specifically, the second connection seat 8 includes a third plate body and a fourth plate body welded to a longitudinal rod body of the guardrail 1 and distributed in parallel and spaced apart, a second accommodation space 801 is formed between the third plate body and the fourth plate body, the first end of the second screw rod 9 is clamped on the side end surface of the third plate body, the second end of the second screw rod 9 passes through the third plate body, the connecting rod 401, and the fourth plate body in sequence and is threadedly connected with the second nut, the above-mentioned components have a simple structure, can not only meet the connection requirements between the second connection seat 8 and the connecting rod 401, but also have the advantages of low cost and easy production and manufacturing. In the process of installing the protective device, the installer first pre-connects the connecting rod 401 and the second connection seat 8 together through the second screw rod 9 and the second nut (that is, the second screw 9 and the second nut are not completely tightened), after adjusting the installation position of the first connecting member 403 and stably and reliably installing the first connection seat 402 and the second mounting member 5 together through the first connecting member 403, the installer then completely tightens the second screw 9 and the second nut, which can avoid the generation of prestress to ensure the installation stability of the protective device.

[0060] In one embodiment of the present application, the protective device also includes a second washer 1011 which is sleeved on the second screw rod 9 and tightly attached to the side end surface of the second connecting seat 8. Specifically, the second washer 1011 is located between the rod head of the second screw rod 9 and the second connecting seat 8, which can protect the side end surface of the second connecting seat 8 from being scratched by the second screw rod 9, disperse the pressure of the rod head of the second screw rod 9 on the second connecting seat 8, and prevent the second screw rod 9 and the second nut from loosening when the two vibrate, thereby further ensuring the connection stability between the connecting rod 401 and the second connecting seat 8.

[0061] In one embodiment of the present application, the first connecting component 2 includes a plurality of connecting plates 201 each of which is arranged at the bottom of the guardrail 1 and has second strip-shaped connecting holes 2011 distributed along the longitudinal direction. The protective device also includes a second connecting member, and the connecting end of the second connecting member passes through the second strip-shaped connecting hole 2011 and is connected to the first mounting member 3.

[0062] Specifically, the guardrail 1 in this embodiment includes a plurality of vertical rods parallel and spaced apart on a vertical plane, a plurality of connecting plates 201 are arranged at the bottom of the vertical rods, and the length of each connecting plate 201 can be set according to actual circumstances, the second strip-shaped connecting hole 2011 can be rectangular or waist-shaped and extend in the longitudinal direction (the longitudinal direction in this embodiment refers to the direction consistent with the length direction of the guardrail 1), and the second connecting member in this embodiment can be optionally a screw or a bolt, and the threaded end of the second connecting member is its connecting end. When there is a longitudinal installation error between the first mounting member 3 and the guardrail 1 (the position where the first mounting member 3 is connected to the connecting plate 201 will not change), the installer adaptively adjusts the installation position of the second connecting member in the second strip-shaped connecting hole 2011 so that the threaded end of the second connecting member can be threadedly connected to the threaded connection hole on the first mounting member 3 after passing through the second strip-shaped connecting hole 2011.

[0063] In one embodiment of the present application, the protective device also includes a third gasket 12 which is sleeved on the second connecting member and tightly attached to the top surface of the connecting plate 201. Specifically, the third gasket 12 is located between the rod head of the second connecting member and the connecting plate 201, which can protect the top surface of the connecting plate 201 from being scratched by the second connecting member, disperse the pressure of the rod head of the second connecting member on the connecting plate 201, and prevent the second connecting member from loosening from the connecting plate 201 when the second connecting member vibrates, thereby further ensuring the connection stability between the connecting plate 201 and the first mounting member 3.

[0064] Another embodiment of the present application provides a working machine, which includes the protective device for the working machine in the above embodiment.

[0065] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0068] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A protective device for an operating machine, characterized in that: The protective device comprises: Guardrail (1); A first connecting component (2) is arranged on the guardrail (1) and is used to connect the guardrail (1) and a first mounting member (3) of the operating machine; A second connecting component (4), the second connecting component (4) is located between the guardrail (1) and the second mounting member (5) of the operating machine and can adaptively compensate for the height installation error between the guardrail (1) and the second mounting member (5), wherein the second connecting component (4) includes a connecting rod (401), a first connecting seat (402) and a first connecting member (403), the connecting rod (401) is rotatably connected to the guardrail (1) at a first preset position; the first connecting seat (402) is rotatably connected to an end of the connecting rod (401) away from the guardrail (1); the first connecting member (403) is laterally movably arranged on the first connecting seat (402) and is used to connect the first connecting seat (402) and the second mounting member (5).

2. The protective device for working machinery according to claim 1, characterized in that: The first connecting seat (402) includes a planar connecting portion (4021) and a rotating connecting portion (4022) rotatably connected to the connecting rod (401), and the planar connecting portion (4021) is provided with first strip-shaped connecting holes (4023) distributed in the transverse direction, and the connecting end of the first connecting member (403) passes through the first strip-shaped connecting hole (4023) to be connected to the second mounting member (5).

3. The protective device for working machinery according to claim 2, characterized in that: The rotating connection part (4022) is provided with a first accommodating space (4024) for allowing part of the connecting rod (401) to extend therein, and the protective device further comprises a first screw rod (6) and a first nut, wherein the first end of the first screw rod (6) is clamped on the side end surface of the rotating connection part (4022), and the second end of the first screw rod (6) passes through the rotating connection part (4022), the connecting rod (401) and is threadedly connected to the first nut.

4. The protective device for working machinery according to claim 3, characterized in that: The protective device also includes a first washer (7) which is sleeved on the first screw rod (6) and is tightly attached to the side end surface of the rotating connection part (4022).

5. The protective device for working machinery according to claim 1, characterized in that: The protective device also includes a second connecting seat (8), a second screw rod (9) and a second nut. The second connecting seat (8) is arranged on the protective fence (1) and forms a second accommodating space (801) for allowing part of the connecting rod (401) to extend into. The first end of the second screw rod (9) is clamped on the side end surface of the second connecting seat (8), and the second end of the second screw rod (9) passes through the second connecting seat (8), the connecting rod (401) and is threadedly connected to the second nut.

6. The protective device for working machinery according to claim 5, characterized in that: The protective device also includes a second washer (10) (11) which is sleeved on the second screw rod (9) and tightly attached to the side end surface of the second connecting seat (8).

7. The protective device for a working machine according to any one of claims 1 to 6, characterized in that: The first connection assembly (2) comprises a plurality of connection plates (201) which are all arranged at the bottom of the guardrail (1) and have second strip-shaped connection holes (2011) distributed in the longitudinal direction. The guard device also comprises a second connection member, and the connection end of the second connection member passes through the second strip-shaped connection hole (2011) and is connected to the first mounting member (3).

8. The protective device for working machinery according to claim 7, characterized in that: The protective device also includes a third gasket (12) which is sleeved on the second connecting member and tightly attached to the top surface of the connecting plate (201).

9. A working machine, characterized in that: The working machine comprises a protective device for a working machine according to any one of claims 1-8.

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