Protective device of crane

Abstract

The utility model relates to the field of engineering machinery, and discloses a protective device of a crane, which comprises a first side protective assembly, a second side protective assembly, a rear end protective assembly and a bottom sealing plate, the rear end protection assembly is arranged between the rear end of the first side protection assembly and the rear end of the second side protection assembly, and the bottom sealing plate is horizontally arranged between the bottom of the first side protection assembly and the bottom of the second side protection assembly. The protective device plays a role in surrounding the device carried on the upper frame in all directions, and can play a good protective effect and a good noise shielding effect.

Description

Technical Field

[0001] The utility model belongs to the field of engineering machinery, and in particular relates to a protective device for a crane. Background Art

[0002] The main machine of the crane mainly includes the upper frame and the engine device, hydraulic oil pump main valve device, electronic control device, air conditioning cooling device, hydraulic oil tank and fuel tank, etc., which are all mounted on the upper frame. In the existing cranes, in order to protect the devices mounted on the upper frame and shield the noise, a protective device is usually provided around the edge of the upper frame. However, the protective device in the existing crane is a semi-enclosed structure, which has poor protection effect and noise reduction effect. Utility Model Content

[0003] In view of the above-mentioned deficiencies or defects in the prior art, the utility model provides a protective device for a crane, aiming to solve the technical problem that the protective device for the existing crane has poor protection effect and noise reduction effect.

[0004] In order to achieve the above object, the utility model provides a protective device for a crane, the protective device comprising:

[0005] a first side protection assembly and a second side protection assembly, wherein the first side protection assembly and the second side protection assembly are spaced apart and arranged opposite to each other in a horizontal direction;

[0006] A rear end protection component, disposed between a rear end of the first side protection component and a rear end of the second side protection component;

[0007] The bottom sealing plate is horizontally arranged between the bottom of the first side protection assembly and the bottom of the second side protection assembly.

[0008] Optionally, the first side protection assembly comprises a first top cover plate and a first protection shielding door, the first top cover plate is horizontally arranged, and a side edge of the first protection shielding door is hinged to an outer side edge of the first top cover plate;

[0009] The second side protection assembly includes a second top cover plate and a second protection shielding door. The second top cover plate is horizontally arranged. A side edge of the second protection shielding door is hinged to an outer side edge of the second top cover plate.

[0010] Optionally, the first top cover plate is provided with a fuel filling port, and the fuel filling port is provided with an openable and closable fuel tank cover.

[0011] Optionally, the first side protection assembly also includes a walking top plate and a main climbing ladder, the walking top plate is horizontally arranged and spaced apart directly above the first top cover plate, the main climbing ladder is vertically arranged and the top is connected to the front end of the first top cover plate, the main climbing ladder, the fuel tank cover plate and the walking top plate are arranged in sequence from front to back.

[0012] Optionally, the fuel tank cover plate, the walking top plate and the second top cover plate are respectively provided with a plurality of through holes with edges protruding upward.

[0013] Optionally, the outer edges of the walking top plate and the second top covering plate are both provided with retractable or foldable guardrails.

[0014] Optionally, the first protective shielding door and the second protective shielding door are both provided with a heat dissipation area and / or a shielding area, the heat dissipation area is provided with a plurality of heat dissipation holes, and the shielding area includes a thin plate layer, a porous plate layer and a sound-absorbing layer stacked sequentially from the outside to the inside.

[0015] Optionally, the rear end protection assembly includes a first rear end cover plate, a second rear end cover plate and an inspection door, the first rear end cover plate and the second rear end cover plate are both provided with a plurality of heat dissipation holes, the first rear end cover plate is vertically arranged and the top side edge is connected to the rear end edge of the first top cover plate, the second rear end cover plate is vertically arranged and the top side edge is connected to the rear end edge of the second top cover plate, the inspection door includes a door frame and a door body connected to the door frame in an openable and closable manner, the door frame is vertically arranged and connected between the first rear end cover plate and the second rear end cover plate.

[0016] Optionally, the bottom cover plate is provided with a plurality of heat dissipation holes, and the outer edges extend to the outer edges of the first top cover plate, the outer edges of the second top cover plate, the bottom edge of the first rear end cover plate, the bottom edge of the second rear end cover plate and directly below the bottom edge of the door frame.

[0017] Optionally, the first side protection assembly, the second side protection assembly, the rear end protection assembly and the bottom sealing plate are all made of aluminum alloy material.

[0018] Through the above technical scheme, the protective device of the utility model is a fully enclosed structure composed of a first side protection component, a second side protection component, a rear end protection component and a bottom sealing plate. In actual application, the first side protection component, the second side protection component, the rear end protection component and the bottom sealing plate are installed on the upper frame, which plays an all-round surrounding role for the device mounted on the upper frame, and can play a good protective effect and noise shielding effect.

[0019] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0021] Figure 1 It is a structural schematic diagram of a protective device for a crane in a specific implementation mode of the utility model;

[0022] Figure 2 for Figure 1 A top view of the protective device of the crane;

[0023] Figure 3 It is a structural schematic diagram of a crane protection device in a specific implementation mode of the utility model in an unfolded state.

[0024] Description of reference numerals:

[0025] 100 First side protection assembly

[0026] 101 first top cover plate 102 first protective shielding door

[0027] 103 Fuel tank cover 104 Walking top plate

[0028] 105 Main climbing ladder

[0029] 200 Second side protection assembly

[0030] 201 second top cover plate 202 second protective shielding door

[0031] 300 Backend protection components

[0032] 301 first rear end sealing plate 302 second rear end sealing plate

[0033] 303 Inspection door

[0034] 400 Bottom sealing plate

[0035] 500 Guardrail

[0036] a Heat dissipation area b Shielding area DETAILED DESCRIPTION

[0037] The specific implementation of the present invention 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 invention, and is not used to limit the present invention.

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0039] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings or are used to describe the relative positional relationships of components in the vertical, perpendicular or gravity direction.

[0040] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0041] The utility model firstly provides a protective device for a crane.

[0042] In one embodiment, referring to Figure 1 To Attachment Figure 3 As shown, the protective device includes a first side protective assembly 100, a second side protective assembly 200, a rear end protective assembly 300 and a bottom sealing plate 400. The first side protective assembly 100 and the second side protective assembly 200 are spaced apart and arranged relatively to each other in a horizontal direction. The rear end protective assembly 300 is arranged between the rear end of the first side protective assembly 100 and the rear end of the second side protective assembly 200. The bottom sealing plate 400 is horizontally arranged between the bottom of the first side protective assembly 100 and the bottom of the second side protective assembly 200.

[0043] The protective device of this embodiment is a fully enclosed structure composed of a first side protective component 100, a second side protective component 200, a rear end protective component 300 and a bottom sealing plate 400. In actual application, the first side protective component 100, the second side protective component 200, the rear end protective component 300 and the bottom sealing plate 400 are installed on the upper frame, which can fully surround the device mounted on the upper frame and achieve good protection and noise shielding effects.

[0044] In one embodiment, referring to Figure 1 To Attachment Figure 3 As shown, the first side protection assembly 100 includes a first top cover plate 101 and a first protective shielding door 102, the first top cover plate 101 is horizontally arranged, and one side edge of the first protective shielding door 102 is hinged to the outer edge of the first top cover plate 101; the second side protection assembly 200 includes a second top cover plate 201 and a second protective shielding door 202, the second top cover plate 201 is horizontally arranged, and one side edge of the second protective shielding door 202 is hinged to the outer edge of the second top cover plate 201.

[0045] In actual application, pre-installed frames are installed on both side edges of the upper frame of the crane through bolts and other fasteners. The pre-installed frames are door frame structures and can be made of Q355B steel to meet the rigidity requirements. The first top cover plate 101 and the second top cover plate 201 are installed on the tops of their respective corresponding pre-installed frames by means of fasteners such as bolts. The first protective shielding door 102 rotates relative to the first top cover plate 101, thereby having a closed position and an open position. In the closed position, the first protective shielding door 102 covers the pre-installed frame to play a protective and shielding role. In the open position, the first protective shielding door 102 rotates relative to the pre-installed frame by a predetermined angle to reveal the opening of the pre-installed frame, so as to facilitate the staff to inspect and repair the device on the upper frame. Similarly, the second protective shielding door 202 rotates relative to the second top cover plate 201, thereby having a closed position and an open position. In the closed position, the second protective shielding door 202 covers the pre-installed frame to play a protective and shielding role. In the open position, the second protective shielding door 202 rotates relative to the pre-installed frame by a predetermined angle to reveal the opening of the pre-installed frame, so as to facilitate the staff to inspect and repair the device on the upper frame.

[0046] In this embodiment, a gas spring may be connected between the first protective shielding door 102 and its corresponding pre-installed frame, and between the second protective shielding door 202 and its corresponding pre-installed frame. When the first protective shielding door 102 and the second protective shielding door 202 are opened, they are kept in the open position under the positive angle support force formed by the gas spring and the vertical direction, and when they are closed, they are kept in the closed state (i.e., self-locking state) under the negative angle support force formed by the gas spring and the vertical direction. In this way, the convenience of maintenance for the staff is further improved.

[0047] In addition, a locking assembly may be provided between the first protective shielding door 102 and its corresponding pre-installed frame, and between the second protective shielding door 202 and its corresponding pre-installed frame. The locking assembly may be used to lock the first protective shielding door 102 and the second protective shielding door 202 in a closed position, thereby preventing the first protective shielding door 102 and the second protective shielding door 202 from being accidentally opened during the operation or movement of the crane.

[0048] In actual application, the number of the first protective shielding door 102 and the second protective shielding door 202 is set according to demand. For example, as shown in the accompanying drawings, the number of the first protective shielding door 102 is set to three, and the three first protective shielding doors 102 are arranged side by side, corresponding to different devices on the upper frame.

[0049] Specifically, the frames of the first protective shielding door 102 and the second protective shielding door 202 can be formed in an integrated continuous bending form, which effectively reduces welding points and reduces manufacturing costs. Moreover, the middle position of the first protective shielding door 102 and the second protective shielding door 202 can be welded and reinforced with mold-extruded aluminum profiles to improve structural strength.

[0050] Specifically, the first protective shielding door 102 and the second protective shielding door 202 may be made of aluminum alloy material, which is light in weight and can be more flexibly designed in terms of size.

[0051] In one embodiment, referring to Figure 1 To Attachment Figure 3 As shown, the first top cover plate 101 is provided with a fuel filling port, and the fuel filling port is provided with an openable and closable fuel tank cover plate 103.

[0052] In actual application, the fuel tank can be arranged just below the fuel filling port. This arrangement makes it convenient for the staff to open the fuel tank cover 103 and fill the fuel into the fuel tank through the fuel filling port.

[0053] In one embodiment, the first side protection assembly 100 also includes a walking top plate 104 and a main climbing ladder 105. The walking top plate 104 is horizontally arranged and spaced directly above the first top cover plate 101. The main climbing ladder 105 is vertically arranged and the top is connected to the front end of the first top cover plate 101. The main climbing ladder 105, the fuel tank cover plate 103 and the walking top plate 104 are arranged in sequence from front to back.

[0054] In this way, the main climbing ladder 105, the fuel tank cover 103 and the walking top plate 104 together constitute a main walking passage, which is convenient for workers to climb to the top of the protective device for inspection and maintenance through the walking passage.

[0055] In order to improve the convenience and safety of climbing, an anti-slip structure can be set on the steps of the main climbing ladder 105, and handrails can be set on both sides of the steps. At the same time, an auxiliary handle can be set at one end of the fuel tank cover 103 close to the main climbing ladder 105, and a step ladder can be set under the end of the walking top plate 104 close to the fuel tank cover 103.

[0056] In one embodiment, referring to Figure 1 As shown, the second side protection assembly 200 also includes an auxiliary climbing ladder, which is vertically arranged and arranged in sequence from front to back with the second top cover plate 201. Workers can climb to the second top cover plate 201 via the auxiliary climbing ladder, that is, the auxiliary climbing ladder and the second top cover plate 201 together constitute a secondary walking passage.

[0057] In one embodiment, the fuel tank cover plate 103, the running top plate 104 and the second top cover plate 201 are respectively provided with a plurality of through holes with upwardly protruding edges. Such arrangement enables the fuel tank cover plate 103, the running top plate 104 and the second top cover plate 201 to have anti-slip, heat dissipation and lightweight effects.

[0058] In one embodiment, the outer edges of the walking top plate 104 and the second top cover plate 201 are both provided with retractable or foldable guardrails 500 .

[0059] With such arrangement, when the crane needs to pass through a height-restricted width-restricted area during its operation transfer, the guardrail 500 can be retracted or folded so that the crane meets the passability requirements.

[0060] Specifically, the outer sides of the walking top plate 104 and the second top cover plate 201 may be provided with fixings, the bottom of the guardrail 500 may be hinged on the fixings, and the fixings are provided with locking members that selectively engage with the bottom of the guardrail 500 to limit the rotation of the guardrail 500 relative to the fixings, so that the guardrail 500 can be folded.

[0061] Specifically, the outer sides of the walking top plate 104 and the second top cover plate 201 may be provided with fixings, and the bottom of the guardrail 500 may be slidably connected to the fixings along the vertical direction. The fixings are provided with locking members that selectively engage with the bottom of the guardrail 500 to limit the sliding of the guardrail 500 relative to the fixing members. In this way, the guardrail 500 is retractable.

[0062] In one embodiment, referring to Figure 1 As shown, the first protective shielding door 102 and the second protective shielding door 202 are both provided with a heat dissipation area a and / or a shielding area b. The heat dissipation area a is provided with a plurality of heat dissipation holes, and the shielding area b includes a thin plate layer, a porous plate layer and a sound-absorbing layer stacked sequentially from the outside to the inside.

[0063] The setting of the heat dissipation area a and / or the shielding area b is selected according to the device to be protected by the protective shielding door. Figure 1 To Attachment Figure 3 As shown, the first side protection component 100 includes three first protection shielding doors 102 arranged side by side from front to back, the first protection shielding door 102 located in the front is a structure fully covered by the shielding area b, the first protection shielding door 102 located in the middle is a structure half covered by the shielding area b and half covered by the heat dissipation area a, and the first protection shielding door 102 located at the back is a structure fully covered by the heat dissipation area a; the second side protection component 200 includes a second protection shielding door 202, and the second protection shielding door 202 is a structure half covered by the shielding area b and the other half covered by the heat dissipation area a, wherein the heat dissipation area a mainly plays a role of heat dissipation, and the shielding area b mainly plays a role of shielding noise. In actual application, the shielding area b corresponds to the protection of devices with severe working noise, and the heat dissipation area a corresponds to the protection of devices that require continuous cooling and heat dissipation.

[0064] Specifically, the thin plate layer is made of a thin plate; the porous plate layer is made of a cylindrical or honeycomb porous plate, and is connected to the thin plate layer by welding or gluing; the sound-absorbing layer is made of a polyester foam layer or a sound-absorbing cotton layer, and is connected to the porous plate layer by gluing. In other words, the shielding area b is a multi-layer laminated structure, which plays a good role in blocking noise propagation and suppressing noise generated by self-resonance.

[0065] Specifically, the multiple heat dissipation holes opened in the heat dissipation area a can be set as hexagonal honeycomb holes. Compared with circular holes, they have a larger heat dissipation area, better heat dissipation effect, and are lighter.

[0066] In one embodiment, the rear end protection assembly 300 includes a first rear end sealing plate 301, a second rear end sealing plate 302 and an inspection door 303. The first rear end sealing plate 301 and the second rear end sealing plate 302 are both provided with a plurality of heat dissipation holes. The first rear end sealing plate 301 is vertically arranged and its top side edge is connected to the rear end edge of the first top cover plate 101. The second rear end sealing plate 302 is vertically arranged and its top side edge is connected to the rear end edge of the second top cover plate 201. The inspection door 303 includes a door frame and a door body connected to the door frame in an openable and closable manner. The door frame is vertically arranged and connected between the first rear end sealing plate 301 and the second rear end sealing plate 302.

[0067] It can be understood that when the door body of the inspection door 303 is closed, the first rear end sealing plate 301, the second rear end sealing plate 302 and the inspection door 303 can fully surround the rear of the device on the upper frame, play a good role in protection and noise reduction, and the first rear end sealing plate 301 and the second rear end sealing plate 302 are provided with a plurality of heat dissipation holes, which also ensure the heat dissipation effect. When maintenance is needed, the door body of the inspection door 303 can be opened, which is convenient and quick, wherein the door body of the inspection door 303 can adopt a double-opening structure.

[0068] Specifically, the plurality of heat dissipation holes formed in the first rear end sealing plate 301 and the second rear end sealing plate 302 can be configured as hexagonal honeycomb holes, which have a larger heat dissipation area, better heat dissipation effect, and are lighter than circular holes.

[0069] In this embodiment, the first rear end sealing plate 301, the second rear end sealing plate 302 and the inspection door 303 can be made of aluminum alloy material to meet the lightweight requirements.

[0070] In order to further improve the noise shielding effect, the door body of the inspection door 303 can be configured to be a structure fully covered by the shielding area b.

[0071] In one embodiment, the bottom cover plate 400 is provided with a plurality of heat dissipation holes, and the outer edges extend to the outer edges of the first top cover plate 101, the outer edges of the second top cover plate 201, the bottom edge of the first rear end cover plate 301, the bottom edge of the second rear end cover plate 302, and directly below the bottom edge of the door frame. This arrangement can surround the lower part of the device on the upper frame, and play a good role in protection and noise reduction.

[0072] Specifically, the multiple heat dissipation holes formed in the bottom sealing plate 400 can be configured as hexagonal honeycomb holes, which have a larger heat dissipation area, better heat dissipation effect, and are lighter than circular holes.

[0073] In one embodiment, the first side protection assembly 100, the second side protection assembly 200, the rear end protection assembly 300 and the bottom cover plate 400 are all made of aluminum alloy material. This arrangement makes the overall weight of the protection device lighter and effectively improves the anti-corrosion performance.

[0074] The above are only preferred implementation modes of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0075] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0076] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A protective device for a crane, characterized in that: The protective device comprises: A first side protection component (100) and a second side protection component (200), wherein the first side protection component (100) and the second side protection component (200) are spaced apart and arranged opposite to each other in a horizontal direction; A rear end protection component (300) is arranged between the rear end of the first side protection component (100) and the rear end of the second side protection component (200); A bottom sealing plate (400) is horizontally arranged between the bottom of the first side protection assembly (100) and the bottom of the second side protection assembly (200).

2. The protective device for a crane according to claim 1, characterized in that: The first side protection assembly (100) comprises a first top cover plate (101) and a first protection shielding door (102); the first top cover plate (101) is arranged horizontally, and a side edge of the first protection shielding door (102) is hinged to an outer side edge of the first top cover plate (101); The second side protection assembly (200) comprises a second top cover plate (201) and a second protective shielding door (202); the second top cover plate (201) is arranged horizontally, and a side edge of the second protective shielding door (202) is hinged to an outer side edge of the second top cover plate (201).

3. The protective device for a crane according to claim 2, characterized in that: The first top cover plate (101) is provided with a fuel filling port, and the fuel filling port is provided with an openable and closable fuel tank cover plate (103).

4. The protective device for a crane according to claim 3, characterized in that: The first side protection assembly (100) further comprises a walking top plate (104) and a main climbing ladder (105); the walking top plate (104) is horizontally arranged and spaced just above the first top cover plate (101); the main climbing ladder (105) is vertically arranged and the top is connected to the front end of the first top cover plate (101); the main climbing ladder (105), the fuel tank cover plate (103) and the walking top plate (104) are arranged in sequence from front to back.

5. The protective device for a crane according to claim 4, characterized in that: The fuel tank cover plate (103), the walking top plate (104) and the second top cover plate (201) are respectively provided with a plurality of through holes with edges protruding upward.

6. The protective device for a crane according to claim 5, characterized in that: The outer edges of the walking top plate (104) and the second top cover plate (201) are both provided with retractable or foldable guardrails (500).

7. The protective device for a crane according to claim 2, characterized in that: The first protective shielding door (102) and the second protective shielding door (202) are both provided with a heat dissipation area (a) and / or a shielding area (b), the heat dissipation area (a) being provided with a plurality of heat dissipation holes, and the shielding area (b) comprising a thin plate layer, a porous plate layer and a sound-absorbing layer stacked in sequence from the outside to the inside.

8. The protective device for a crane according to claim 2, characterized in that: The rear end protection assembly (300) comprises a first rear end sealing plate (301), a second rear end sealing plate (302) and an inspection door (303); the first rear end sealing plate (301) and the second rear end sealing plate (302) are both provided with a plurality of heat dissipation holes; the first rear end sealing plate (301) is vertically arranged and the top side edge is connected to the rear end edge of the first top cover plate (101); the second rear end sealing plate (302) is vertically arranged and the top side edge is connected to the rear end edge of the second top cover plate (201); the inspection door (303) comprises a door frame and a door body connected to the door frame in an openable and closable manner; the door frame is vertically arranged and connected between the first rear end sealing plate (301) and the second rear end sealing plate (302).

9. The protective device for a crane according to claim 8, characterized in that: The bottom sealing plate (400) is provided with a plurality of heat dissipation holes, and the outer edges extend to the outer edges of the first top covering plate (101), the outer edges of the second top covering plate (201), the bottom edge of the first rear end sealing plate (301), the bottom edge of the second rear end sealing plate (302), and directly below the bottom edge of the door frame.

10. The protective device for a crane according to claim 1, characterized in that: The first side protection assembly (100), the second side protection assembly (200), the rear end protection assembly (300) and the bottom sealing plate (400) are all made of aluminum alloy material.

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