Protective cover device for telescopic boom of wet spraying machine

Abstract

The utility model discloses a protective cover device for a telescopic boom of a wet spraying machine. The protective cover device comprises the telescopic boom and a telescopic protective cover, wherein the tail end of the telescopic boom is fixed; the telescopic protective cover is sleeved outside the telescopic boom; the telescopic arm frame comprises a fixed arm with a fixed tail end and a multi-stage nested telescopic arm nested in the fixed arm; the telescopic protective cover comprises a fixed cover with a fixed tail end and a telescopic cover which is arranged outside the fixed cover in a sleeving manner and is arranged in a multi-stage sleeving manner; the side wall of the front end of the fixed cover is connected with the side wall of the front end of the fixed arm through a mounting frame; and the side wall of the front end of each stage of telescopic cover is also connected with the side wall of the front end of the telescopic arm corresponding to the stage of telescopic cover through a mounting frame. The device can well cope with springback materials generated in the wet spraying process, protect telescopic motion of the arm frame and prevent the arm frame from being directly collided, and meanwhile can well protect a hydraulic pipeline passing through the arm frame of the wet spraying machine and prevent the hydraulic pipeline from being hit by springback stone materials in the spraying process.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a telescopic arm protective cover device for a wet spraying machine. Background Art

[0002] When wet spraying machines and other spraying machines are spraying on arches and slopes, a lot of rebound materials are often generated. At present, wet spraying machines with booms on the market are basically in the form of exposed booms, which easily cause the concrete sprayed on the rock wall to rebound onto the boom. The rebound material will not only impact the boom, material conveying and hydraulic pipelines, causing wear, but also because the arch surface wet spraying requires the addition of additives such as accelerators, which greatly advances the initial setting time of the concrete. If it is not cleaned in time, the concrete will solidify in the expansion gap of the boom, causing the boom to be unable to expand and contract normally, which has a very serious impact on production efficiency. At the same time, because the entire boom is exposed to the outside, it does not look advanced enough, affecting the overall aesthetics of the equipment.

[0003] Therefore, a utility model is needed to develop a protective device that can not only effectively deal with the rebound material generated during the wet spraying process, protect the telescopic movement of the arm and prevent the arm from directly colliding, but also effectively protect the hydraulic pipeline passing through the wet spraying machine arm and prevent the hydraulic pipeline from being hit by rebound stones during spraying. It is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provides a protective cover device for a telescopic arm of a wet spraying machine.

[0005] In order to achieve the above-mentioned object, the utility model provides a technical solution as follows: the wet spraying machine telescopic arm protection device comprises a telescopic arm (1) with a fixed end and a telescopic protective cover (2) sleeved outside the telescopic arm (1) and fixed at the end, the end of the telescopic arm (1) and the end of the telescopic protective cover (2) are at the same end; the telescopic arm (1) comprises a fixed arm (3) with a fixed end and a multi-stage nested telescopic arm nested in the fixed arm (3); the telescopic protective cover (2) comprises a fixed cover (4) with a fixed end and a multi-stage sleeved telescopic cover sleeved outside the fixed cover (4), A sliding pad (3) is provided between the fixed cover (4) and the first-stage telescopic cover (5), and a sliding pad (6) is also provided between the upper-stage telescopic cover and the lower-stage telescopic cover. The front end side wall of the fixed cover (3) and the front end side wall of the fixed arm (3) are connected via a mounting frame (7); the front end side walls of the telescopic covers of each stage are also connected to the front end side walls of the telescopic arms corresponding to the telescopic covers of the same stage via the mounting frame (7); or, the front end side walls of the telescopic covers of the other stages except the outermost first-stage telescopic cover are also connected to the front end side walls of the telescopic arms corresponding to the telescopic covers of the same stage via the mounting frame (7).

[0006] Preferably, the front end surface of the outermost first-stage telescopic cover is provided with a front wall plate (8).

[0007] Preferably, the multi-stage nested telescopic arms include a first-stage telescopic arm (9), a second-stage telescopic arm (10) and a third-stage telescopic arm (11); the multi-stage telescopic cover includes a first-stage telescopic cover (5), a second-stage telescopic cover (12) and a third-stage telescopic cover (13); the front inner wall of the first-stage telescopic cover (5) is connected to the front outer wall of the first-stage telescopic arm (9) via a mounting frame (7); the front inner wall of the second-stage telescopic cover (12) is connected to the front outer wall of the second-stage telescopic arm (10) via a mounting frame (7); and the front end face of the third-stage telescopic cover (13) is provided with a front wall plate (8).

[0008] Preferably, the multi-stage nested telescopic arms include a first-stage telescopic arm (9), a second-stage telescopic arm (10) and a third-stage telescopic arm (11); the multi-stage telescopic cover includes a first-stage telescopic cover (5), a second-stage telescopic cover (12) and a third-stage telescopic cover (13); the front inner side wall of the first-stage telescopic cover (5) is connected to the front outer side wall of the first-stage telescopic arm (9) via a mounting frame (7); the front inner side wall of the second-stage telescopic cover (12) is connected to the front outer side wall of the second-stage telescopic arm (10) via a mounting frame (7); and the front inner side wall of the third-stage telescopic cover (13) is connected to the front outer side wall of the third-stage telescopic arm (11) via a mounting frame (7).

[0009] Preferably, the front end surface of the third-stage telescopic cover (13) is provided with a front wall plate (8).

[0010] Preferably, a pipeline hanging ring (14) is provided on the mounting frame (7).

[0011] Preferably, the mounting frame (7) is provided with an eye bolt (15).

[0012] Preferably, the mounting frame (7) comprises a connecting column, and bearing plates are respectively provided at both ends of the connecting column, and the telescopic cover and the telescopic arm are respectively fixedly connected to the bearing plates at both ends of the connecting column.

[0013] Preferably, the cross section of the protective cover is in an inverted U shape, and the telescopic protective cover (2) is buckled on the upper part of the telescopic arm (1).

[0014] The utility model is further described below:

[0015] The utility model discloses a protective cover device for the telescopic arm of a wet spraying machine based on a telescopic arm frame. The telescopic arm frame adopts a telescopic sleeve method. A multi-level nested telescopic arm is arranged in the fixed arm of the telescopic arm frame. The telescopic arm is sleeved layer by layer from the outside to the inside. Correspondingly, the telescopic protective cover also adopts a multi-level and layer-by-layer sleeve method. A multi-level telescopic cover is arranged outside the fixed cover. The fixed arm and the fixed cover serve as the starting section. The fixed cover is used to cover and protect the fixed arm. Each level of telescopic cover is used to cover and protect the corresponding level of telescopic arm. The sliding pads between the fixed cover and the first level of telescopic cover and between the two adjacent levels of telescopic covers effectively reduce the friction between the steel structures and facilitate the telescopic extension of the arm frame. A mounting frame is arranged at one end of the fixed arm and the telescopic arm away from the fixed arm after the fixed arm and the telescopic arm are extended. The mounting frame is arranged between the telescopic arm and the telescopic cover, and is used to connect the fixed cover and the fixed arm as well as the telescopic covers and the telescopic arms of each level, so as to achieve the effect of synchronous extension and retraction. When the multi-stage telescopic arm is in a retracted state, the multi-stage telescopic covers are stacked layer by layer to cover the top of the fixed arm. When the wet spraying machine is operating, the telescopic arm is extended step by step and the telescopic covers of each level are extended synchronously through the mounting frame. The telescopic cover can always be located above the telescopic arm of the corresponding level, thereby playing a protective role in preventing rebound material from falling on the telescopic arm.

[0016] In order to improve the protection effect of the front end of the telescopic arm, a front wall plate is set at the front end of the outermost telescopic cover to prevent the impact of the front rebound material, and the front wall plate is connected to the front end surface of the frontmost telescopic arm. The outermost telescopic cover with the front wall plate can be connected to the telescopic arm corresponding to the telescopic cover of this level through the mounting frame, or can be connected to the telescopic arm corresponding to the telescopic cover of this level through the front wall plate, or a combination of the two connection methods.

[0017] This scheme takes a telescopic arm frame composed of a fixed arm, a first-level telescopic arm, a second-level telescopic arm and a third-level telescopic arm nested step by step as an example, and the structure is based on a fixed cover, a first-level telescopic cover, a second-level telescopic cover and a third-level telescopic cover that are nested step by step. When the telescopic arm frame is in an extended state, the fixed cover covers the fixed arm, the first-level telescopic cover covers the first-level telescopic arm, the second-level telescopic cover covers the second-level telescopic arm, and the third-level telescopic cover covers the third-level telescopic arm, thereby protecting the three-level telescopic arm. Each level of telescopic cover is connected to the corresponding telescopic arm of this level through a mounting frame, or except for the third-level telescopic cover, the first and second-level telescopic covers are respectively connected to the first and second-level telescopic arms through a mounting frame. According to the needs of the work site, a front wall plate can be set at the front end of the third-level telescopic cover to prevent the impact of the front rebound material.

[0018] During the extension of the telescopic boom, the overlapping parts are connected by sliding pads. When the boom is extended or retracted, the friction between the steel structures is effectively reduced, which is convenient for the extension of the boom and can be replaced in time after excessive wear. The cross section of the protective cover is an inverted U-shape, and a pentagonal protective plate with the opening facing downward is used to cover the entire telescopic boom. The mounting frame can adopt a structure in which a connecting column connects the bearing plate. The telescopic arm and the telescopic cover are respectively connected to the bearing plates at both ends of the connecting column. Since the connecting column has a certain length, there is a routing space in the telescopic cover that can be used for hydraulic pipelines and various feed pipelines. The hydraulic hose extending to the head of the boom can be well integrated and protected under the protective cover through the hydraulic pipeline lifting ring to prevent splashes from hitting the hydraulic hose during work. The hydraulic hose lifting ring makes the overall routing of the hydraulic hose more regular and the appearance more neat and beautiful; the lifting bolt can be installed according to the use of the boom, which can meet the hoisting of concrete pipelines, gas pipelines, and water pipelines, facilitating the use and installation of these boom supporting equipment.

[0019] Compared with the existing technology, it has the following advantages:

[0020] 1. The multi-level protective cover can provide good protection for the overall telescopic part of the boom, so that the entire boom will not be affected by splashes during work. At the same time, the number of protective covers can be changed according to the number of telescopic arms of the boom, with strong adaptability and reliable structure;

[0021] 2. The hydraulic pipe lifting ring is installed on the mounting frame and is located under the protective cover, which can effectively protect the hydraulic hose during construction. At the same time, the hydraulic hose is routed according to the position of the hydraulic pipe lifting ring, which makes the overall appearance more regular and beautiful.

[0022] 3. The installation position of the lifting bolt is reserved on the mounting frame. If the equipment needs to be connected to other pipelines, the lifting bolt can be used to lift it to ensure the use of the pipeline.

[0023] 4. The structure can be adjusted according to the needs of the equipment (size, number of protective covers, etc.), and can be widely used in various telescopic arms to effectively protect the arms.

[0024] In summary, the protective cover device for the telescopic boom of the wet spraying machine proposed by the utility model is widely applicable, can well deal with the rebound material generated during the wet spraying process, protect the telescopic movement of the boom and prevent the boom from directly bumping. At the same time, this structure can well protect the hydraulic pipeline passing through the boom of the wet spraying machine, prevent the hydraulic pipeline from being hit by rebounding stones during spraying, and cover the telescopic part of the boom and the place where the pipeline is hung, which greatly improves the overall aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a structural schematic diagram of the telescopic arm protective cover device of the wet spraying machine of the utility model;

[0026] Figure 2 It is a bottom view of the protective cover device of the telescopic arm of the wet spraying machine of the utility model;

[0027] Figure 3 for Figure 2 AA section view.

[0028] In the utility model figure: 1, telescopic arm frame; 2, telescopic protective cover; 3, fixed arm; 4, fixed cover; 5, first-stage telescopic cover; 6, sliding pad; 7, mounting frame; 8, front wall plate; 9, first-stage telescopic arm; 10, second-stage telescopic arm; 11, third-stage telescopic arm; 12, second-stage telescopic cover; 13, third-stage telescopic cover; 14, pipeline lifting ring; 15, lifting eye bolt. DETAILED DESCRIPTION Example 1

[0029] See also Figures 1 to 3 The telescopic arm protection device of the wet spraying machine includes a telescopic arm 1 with a fixed end and a telescopic protective cover 2 which is sleeved outside the telescopic arm 1 and fixed at the end. The end of the telescopic arm 1 and the end of the telescopic protective cover 2 are at the same end; the telescopic arm 1 includes a fixed arm 3 with a fixed end and a multi-stage nested telescopic arm nested in the fixed arm 3; the telescopic protective cover 2 includes a fixed cover 4 with a fixed end and a multi-stage sleeved telescopic cover sleeved outside the fixed cover 4, a sliding pad 3 is provided between the fixed cover 4 and the first-stage telescopic cover 5, and a sliding pad 3 is provided between the upper-stage telescopic cover and the lower-stage telescopic cover. A sliding pad 6 is also provided between the covers, and the multi-stage nested telescopic arms include a first-stage telescopic arm 9, a second-stage telescopic arm 10 and a third-stage telescopic arm 11; the multi-stage telescopic covers include a first-stage telescopic cover 5, a second-stage telescopic cover 12 and a third-stage telescopic cover 13, the front end inner wall of the first-stage telescopic cover 5 is connected to the front end outer wall of the first-stage telescopic arm 9 through a mounting frame 7, the front end inner wall of the second-stage telescopic cover 12 is connected to the front end outer wall of the second-stage telescopic arm 10 through a mounting frame 7, and the front end face of the third-stage telescopic cover 13 is provided with a front wall plate 8.

[0030] The mounting frame 7 is provided with a pipe lifting ring 14. The mounting frame 7 is provided with a lifting eye bolt 15. The mounting frame 7 includes a connecting column, and the two ends of the connecting column are respectively provided with a bearing plate, and the telescopic cover and the telescopic arm are respectively fixed to the bearing plates at the two ends of the connecting column. The cross section of the protective cover is an inverted U shape, and the telescopic protective cover 2 is buckled on the upper part of the telescopic arm frame 1. Example 2

[0031] See also Figures 1 to 3The telescopic arm protection device of the wet spraying machine includes a telescopic arm 1 with a fixed end and a telescopic protective cover 2 which is sleeved outside the telescopic arm 1 and fixed at the end. The end of the telescopic arm 1 and the end of the telescopic protective cover 2 are at the same end; the telescopic arm 1 includes a fixed arm 3 with a fixed end and a multi-stage nested telescopic arm nested in the fixed arm 3; the telescopic protective cover 2 includes a fixed cover 4 with a fixed end and a multi-stage sleeved telescopic cover sleeved outside the fixed cover 4, a sliding pad 3 is provided between the fixed cover 4 and the first-stage telescopic cover 5, and a sliding pad 6 is also provided between the upper-stage telescopic cover and the lower-stage telescopic cover. The retractable arm includes a first-stage telescopic arm 9, a second-stage telescopic arm 10 and a third-stage telescopic arm 11; the multi-stage telescopic cover includes a first-stage telescopic cover 5, a second-stage telescopic cover 12 and a third-stage telescopic cover 13, the front end inner wall of the first-stage telescopic cover 5 is connected to the front end outer wall of the first-stage telescopic arm 9 through a mounting frame 7, the front end inner wall of the second-stage telescopic cover 12 is connected to the front end outer wall of the second-stage telescopic arm 10 through a mounting frame 7, the front end inner wall of the third-stage telescopic cover 13 is connected to the front end outer wall of the third-stage telescopic arm 11 through a mounting frame 7, and the front end face of the third-stage telescopic cover 13 is provided with a front wall plate 8.

[0032] The mounting frame 7 is provided with a pipe lifting ring 14. The mounting frame 7 is provided with a lifting eye bolt 15. The mounting frame 7 includes a connecting column, and the two ends of the connecting column are respectively provided with a bearing plate, and the telescopic cover and the telescopic arm are respectively fixed to the bearing plates at the two ends of the connecting column. The cross section of the protective cover is an inverted U shape, and the telescopic protective cover 2 is buckled on the upper part of the telescopic arm frame 1.

Claims

1. A protective cover device for a telescopic boom of a wet spraying machine, characterized in that: The wet spraying machine telescopic arm protective cover device comprises a telescopic arm (1) with a fixed end and a telescopic protective cover (2) sleeved outside the telescopic arm (1) and with a fixed end, wherein the end of the telescopic arm (1) and the end of the telescopic protective cover (2) are at the same end; The telescopic arm frame (1) comprises a fixed arm (3) with a fixed end and a multi-stage nested telescopic arm nested in the fixed arm (3); the telescopic protective cover (2) comprises a fixed cover (4) with a fixed end and a multi-stage telescopic cover sleeved outside the fixed cover (4); a sliding pad (6) is provided between the fixed cover (4) and the first-stage telescopic cover (5), and a sliding pad (6) is also provided between the upper-stage telescopic cover and the lower-stage telescopic cover; the front end side wall of the fixed cover (4) and the front end side wall of the fixed arm (3) are connected via a mounting frame (7); the front end side wall of each stage of the telescopic cover and the front end side wall of the telescopic arm corresponding to the telescopic cover of the same stage are also connected via the mounting frame (7); or, the front end side walls of the telescopic covers of other stages except the outermost first-stage telescopic cover and the front end side walls of the telescopic arms corresponding to the telescopic covers of the same stage are also connected via the mounting frame (7).

2. The telescopic arm protective cover device of the wet spraying machine according to claim 1, characterized in that: The front end surface of the outermost first-stage telescopic cover is provided with a front wall plate (8).

3. The protective cover device for the telescopic arm of a wet spraying machine according to claim 1, characterized in that: The multi-stage nested telescopic arms include a first-stage telescopic arm (9), a second-stage telescopic arm (10) and a third-stage telescopic arm (11); the multi-stage telescopic cover includes a first-stage telescopic cover (5), a second-stage telescopic cover (12) and a third-stage telescopic cover (13); the front inner wall of the first-stage telescopic cover (5) is connected to the front outer wall of the first-stage telescopic arm (9) via a mounting frame (7); the front inner wall of the second-stage telescopic cover (12) is connected to the front outer wall of the second-stage telescopic arm (10) via a mounting frame (7); and the front end surface of the third-stage telescopic cover (13) is provided with a front wall plate (8).

4. The protective cover device for the telescopic arm of a wet spraying machine according to claim 1, characterized in that: The multi-stage nested telescopic arms include a first-stage telescopic arm (9), a second-stage telescopic arm (10) and a third-stage telescopic arm (11); the multi-stage telescopic cover includes a first-stage telescopic cover (5), a second-stage telescopic cover (12) and a third-stage telescopic cover (13); the front inner side wall of the first-stage telescopic cover (5) is connected to the front outer side wall of the first-stage telescopic arm (9) via a mounting frame (7); the front inner side wall of the second-stage telescopic cover (12) is connected to the front outer side wall of the second-stage telescopic arm (10) via a mounting frame (7); and the front inner side wall of the third-stage telescopic cover (13) is connected to the front outer side wall of the third-stage telescopic arm (11) via a mounting frame (7).

5. The protective cover device for the telescopic arm of a wet spraying machine according to claim 4, characterized in that: The front end surface of the third-stage telescopic cover (13) is provided with a front wall plate (8).

6. The protective cover device for the telescopic arm of a wet spraying machine according to claim 1, characterized in that: The mounting frame (7) is provided with a pipeline hanging ring (14).

7. The protective cover device for the telescopic arm of a wet spraying machine according to claim 1, characterized in that: The mounting frame (7) is provided with an eye bolt (15).

8. The protective cover device for the telescopic arm of a wet spraying machine according to claim 1, characterized in that: The mounting frame (7) comprises a connecting column, and bearing plates are respectively provided at both ends of the connecting column, and the telescopic cover and the telescopic arm are respectively fixedly connected to the bearing plates at both ends of the connecting column.

9. The protective cover device for the telescopic arm of a wet spraying machine according to claim 1, characterized in that: The cross section of the protective cover is in an inverted U shape, and the telescopic protective cover (2) is buckled on the upper part of the telescopic arm frame (1).

Images