Structure for assisting engine tray to rotate through gas spring

Abstract

The utility model relates to a gas spring auxiliary engine tray rotation structure, which belongs to the technical field of engines, and comprises a gas spring arranged between a frame of a high-altitude operation vehicle and an engine tray, and a pin shaft penetrates through the end part of the frame and the end part of the engine tray to rotatably connect the frame and the engine tray together. The frame and the engine tray are respectively welded with a screw seat, and two ends of the gas spring are respectively installed on the two screw seats. An operator can screw in and out the engine tray by means of the gas spring, operation is convenient, time and labor are saved, after the engine tray is screwed in and screwed out in place, the gas spring in the contraction state and the stretching state can provide a limiting effect, the situation that the engine tray is accidentally screwed out and closed and hurts people is prevented, and when the outer side space is insufficient and the engine tray cannot be rotated to the bottom, the gas spring is closed. The engine tray can be stopped at any rotation angle according to actual needs of an operator, the gas spring can support to prevent the engine tray from rotating reversely, and the defect that an original rotating tray can only be opened to the bottom to be limited is overcome.

Description

Technical Field

[0001] The utility model relates to a gas spring assisted engine tray rotation structure, belonging to the technical field of engines. Background Art

[0002] In the technical field of aerial work vehicles and aerial work platforms, in order to improve the space utilization on both sides of the frame and the adaptability to different engine configurations, a rotating engine tray has appeared on the market. Although this tray basically solves the adaptability problem of the frame to different engine configurations, the current engine tray is completely manually screwed in and out by workers without external auxiliary force, which is quite laborious. When rotating the tray, the worker needs to actively hold the pin to fix it. If the fasteners are not tightened or installed, it is very easy to squeeze the worker's fingers or collide with the worker's upper abdomen under inertia, which is very dangerous.

[0003] 1. When the fasteners are not installed, or the workers forget to install the fasteners during maintenance, the engine tray is easy to accidentally rotate out, which can easily cause injury to the workers.

[0004] 2. The current engine tray requires the operator to generate a large pulling force and thrust to rotate the tray due to the friction of the mechanical structure and the resistance caused by the accompanying hydraulic pipelines, which is time-consuming and laborious.

[0005] 3. The current engine tray is generally pushed by manpower, and the operator is also required to actively operate the mechanical limit device (such as a fixed pin). Under inertia, there is a risk of mechanical trauma, which further increases the risk factor of the operation.

[0006] 4. The current engine tray requires a large pulling force or pushing force to rotate the tray when rotating it out from the initial position or rotating it in from the final position. In this way, the tray will generate inertia due to acceleration. In this case, the tray is very likely to hit other metal parts, causing bumps and paint peeling.

[0007] 5. The current engine tray can only be limited when the tray rotates to the final position and cannot be stopped at any position. Utility Model Content

[0008] The utility model aims to provide a gas spring assisted engine tray rotation structure to solve the technical problems that the engine tray rotation out and rotation in operations are time-consuming and labor-intensive and have poor safety.

[0009] The utility model is realized by the following technical solutions:

[0010] That is, a gas spring assisted engine tray rotation structure, including a gas spring installed between the frame of the aerial work vehicle and the engine tray, using a pin shaft to pass through the end of the frame and the end of the engine tray to rotatably connect the frame and the engine tray, a wire seat is welded on the frame and the engine tray respectively, and the two ends of the gas spring are respectively installed on the two wire seats.

[0011] The operator can use the gas spring to rotate the engine tray in and out, which is easy to operate and saves time and effort. After the engine tray is rotated in and out, the gas spring in the retracted and extended states can provide a limiting effect to prevent the engine tray from accidentally rotating out or closing and injuring people. When there is insufficient space on the outside and it cannot be rotated to the bottom, it can be stopped at any rotation angle according to the actual needs of the operator and the gas spring can provide support to prevent the engine tray from rotating in the opposite direction, thus solving the shortcoming that the original rotating tray can only be limited when it is opened to the bottom.

[0012] A further improvement of the utility model is that both the end of the vehicle frame and the end of the engine tray are provided with an extension arm, a sleeve is fixed on the extension arm of the engine tray, and a pin passes through the extension arm on the engine tray and the sleeve on the vehicle frame. The rotation connection structure between the vehicle frame and the engine tray is simple and reliable.

[0013] A further improvement of the utility model is that two extending arms are provided at the end of the engine tray, and the two extending arms are located at the upper and lower sides of the sleeve, and the limiting structure of the engine tray is simple, stable and reliable.

[0014] A further improvement of the utility model is that a latch is used to penetrate the top end of the pin shaft to limit the position.

[0015] A further improvement of the utility model is that a tray fixing support device for fixing and connecting the frame and the engine tray is welded on the frame.

[0016] A further improvement of the utility model is that the tray fixing support device includes a U-shaped rod fixedly mounted at the bottom of the frame, a support plate is provided on the U-shaped rod, an L-shaped rod is provided at the bottom of the engine tray, and the U-shaped rod and the L-shaped rod are connected together by bolts, nuts, and washers. The tray fixing support device is used to fasten the engine tray. When the bolts, nuts, and washers are loose or forgotten to be assembled after maintenance, the tension of the gas spring in the contracted state can prevent the engine tray from being suddenly rotated out, thereby protecting the safety of workers.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The operator can use the gas spring to rotate the engine tray in and out, which is easy to operate and saves time and effort. After the engine tray is rotated in and out, the gas spring in the retracted and extended states can provide a limiting effect to prevent the engine tray from accidentally rotating out or closing and injuring people. When there is insufficient space on the outside and it cannot be rotated to the bottom, it can be stopped at any rotation angle according to the actual needs of the operator and the gas spring can provide support to prevent the engine tray from rotating in the opposite direction, thus solving the shortcoming that the original rotating tray can only be limited when it is opened to the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the main structure of a specific implementation method of the utility model.

[0021] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0022] Figure 3 It is a schematic diagram of the top structure of a specific implementation method of the utility model.

[0023] Figure 4 It is a bottom view structural schematic diagram of a specific implementation mode of the utility model.

[0024] Figure 5 It is a schematic diagram of the top structure of a specific implementation mode of the utility model (gas spring extended state).

[0025] In the figure: 1. frame; 2. engine tray; 3. gas spring; 4. sleeve; 5. pin; 6. latch; 7. wear-resistant washer; 8. bushing; 9. thread seat; 10. bolt; 11. nut; 12. washer; 13. tray fixing support device. DETAILED DESCRIPTION

[0026] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0027] like Figures 1 to 5 The gas spring assisted engine tray rotation structure shown includes a gas spring 3 installed between the frame 1 of the aerial work vehicle and the engine tray 2, and a pin shaft 5 is used to pass through the end of the frame 1 and the end of the engine tray 2 to rotatably connect the frame 1 and the engine tray 2. A wire seat 9 is welded to the frame 1 and the engine tray 2 respectively, and the two ends of the gas spring 3 are respectively installed on the two wire seats 9.

[0028] The operator can use the gas spring 3 to rotate the engine tray 2 in and out, which is easy to operate and saves time and effort. After the engine tray 2 is rotated in and out, the gas spring 3 in the retracted state and the extended state can provide a limiting effect to prevent the engine tray 2 from accidentally rotating out or closing and injuring people. When there is insufficient space on the outside and it cannot be rotated to the bottom, it can be stopped at any rotation angle according to the actual needs of the operator and the gas spring 3 can support to prevent the engine tray 2 from rotating in the reverse direction, thereby solving the shortcoming that the original rotating tray can only be limited when it is opened to the bottom.

[0029] Among them, the ends of the frame 1 and the engine tray 2 are both provided with extension arms, the extension arms of the engine tray 2 are fixed with sleeves 4, and the pin 5 passes through the extension arms on the engine tray 2 and the sleeves 4 on the frame 1. The rotation connection structure between the frame 1 and the engine tray 2 is simple and reliable.

[0030] Two extending arms are provided at the end of the engine tray 2, and the two extending arms are located at the upper and lower sides of the sleeve 4. The limiting structure of the engine tray 2 is simple, stable and reliable.

[0031] Among them, the top end of the pin shaft 5 is limited by a latch pin 6 that penetrates through it.

[0032] Among them, a tray fixing support device 13 for fixing the frame 1 and the engine tray 2 is welded on the frame 1. The tray fixing support device 13 includes a U-shaped rod fixedly installed at the bottom of the frame 1, a support plate is provided on the U-shaped rod, and an L-shaped rod is provided at the bottom of the engine tray 2. The U-shaped rod and the L-shaped rod are connected together by bolts 10, nuts 11, and washers 12. The tray fixing support device 13 is used to fasten the engine tray 2. When the bolts 10, nuts 11, and washers 12 are loose or forgotten to be assembled after maintenance, the tension of the gas spring 3 in the contracted state can prevent the engine tray 2 from being suddenly rotated out, thereby protecting the safety of workers.

[0033] Working principle:

[0034] The operator can use the gas spring to rotate the engine tray in and out, which is easy to operate and saves time and effort. After the engine tray is rotated in and out, the gas spring in the retracted and extended states can provide a limiting effect to prevent the engine tray from accidentally rotating out or closing and injuring people. When there is insufficient space on the outside and it cannot be rotated to the bottom, it can be stopped at any rotation angle according to the actual needs of the operator and the gas spring can provide support to prevent the engine tray from rotating in the opposite direction, thus solving the shortcoming that the original rotating tray can only be limited when it is opened to the bottom.

[0035] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0036] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gas spring assisted engine tray rotation structure, characterized in that: The invention comprises a gas spring (3) installed between a frame (1) and an engine tray (2) of an aerial work vehicle, wherein a pin shaft (5) capable of rotatably connecting the frame (1) and the engine tray (2) is penetrated through the end of the frame (1) and the end of the engine tray (2), a wire seat (9) is welded to the frame (1) and the engine tray (2), and the two ends of the gas spring (3) are respectively installed on the two wire seats (9).

2. The gas spring assisted engine tray rotation structure according to claim 1, characterized in that: An extension arm is provided at the end of the vehicle frame (1) and the end of the engine tray (2); a sleeve (4) is fixedly provided on the extension arm of the engine tray (2); and a pin shaft (5) passes through the extension arm on the engine tray (2) and the sleeve (4) on the vehicle frame (1).

3. The gas spring assisted engine tray rotation structure according to claim 2, characterized in that: Two extension arms are provided at the end of the engine tray (2), and the two extension arms are located at the upper and lower sides of the sleeve (4).

4. The gas spring assisted engine tray rotation structure according to claim 1, characterized in that: The top end of the pin shaft (5) is limited by a latch pin (6).

5. The gas spring assisted engine tray rotation structure according to claim 1, characterized in that: A tray fixing support device (13) for fixing and connecting the vehicle frame (1) and the engine tray (2) is welded on the vehicle frame (1).

6. The gas spring assisted engine tray rotation structure according to claim 5, characterized in that: The tray fixing support device (13) comprises a U-shaped rod fixedly mounted on the bottom end of the vehicle frame (1), a support plate being provided on the U-shaped rod, and an L-shaped rod being provided at the bottom end of the engine tray (2), and the U-shaped rod and the L-shaped rod are connected together by bolts (10), nuts (11) and washers (12).

Images