Arm body, arm frame and concrete wet spraying machine
By using lap welding and sliding cover design, the problems of inconvenient welding and complex structure are solved, simplifying the welding process, reducing costs and improving quality, and expanding the operating range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN WUXIN TUNNEL INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-10
AI Technical Summary
The welding process of existing wet concrete spraying machine booms suffers from problems such as misaligned bevels, which makes welding inconvenient. In addition, the multi-section boom structure is complex, and the slide rail installation method results in a bulky structure.
The arm body is welded together with a first bending plate and a second bending plate. The protective cover is fixed to one end of the arm body and the other end is placed on the adjacent inner protective cover by a slider to achieve synchronous extension and retraction.
It simplifies the welding process, reduces costs and time, improves sealing, reduces boom deformation, simplifies the structure, reduces weight, and expands the operating range.
Smart Images
Figure CN224107266U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to engineering machinery technical field, concretely is a kind of arm body, jib and concrete wet spraying machine. BACKGROUND
[0002] Concrete wet spraying machine is a kind of equipment for mine support, mainly used for spraying concrete, to reinforce roadway and tunnel wall, prevent collapse.Currently, the upper and lower bending plate of wet spraying machine arm body is usually welded by butt joint, however, butt joint is prone to misalignment of upper and lower bending plate groove in the processing process, leading to inconvenient welding.In addition, the shroud of the arm body in the existing concrete wet spraying machine usually adopts the way of installing slide rail on side to control the movement of each section of arm shroud, which will cause complex structure, bloated, central side shift and other influences for multi-section arm. SUMMARY
[0003] In view of the above deficiencies in the prior art, the utility model provides an arm body, jib and concrete wet spraying machine, which adopts lap joint welding and sliding block moving type shroud, can maintain large operation range, simplify jib structure, optimize jib function and reduce jib quality.
[0004] To achieve the above object, the utility model provides an arm body, comprising first bending plate and second bending plate, the first end of the first bending plate and the first end of the second bending plate are mutually overlapped and welded and fixed, the second end of the first bending plate and the second end of the second bending plate are mutually overlapped and welded and fixed.
[0005] In one embodiment, the two ends of the first bending plate are located on the outer side of the two ends of the second bending plate; or
[0006] The first end of the first bending plate is located on the inner side of the first end of the second bending plate, and the second end of the first bending plate is located on the outer side of the second end of the second bending plate.
[0007] In one embodiment, the first bending plate comprises first plate body and second plate body and third plate body located at both ends of the first plate body and integrally formed;
[0008] The second bending plate comprises fourth plate body and fifth plate body and sixth plate body located at both ends of the fourth plate body and integrally formed;
[0009] The second plate body and the fifth plate body partially or entirely overlap, and are welded and fixed;
[0010] The third plate body and the sixth plate body partially or entirely overlap, and are welded and fixed;
[0011] The first plate body and / or the fourth plate body is flat plate, V-shaped plate or arc-shaped plate.
[0012] To achieve the above object, the utility model provides a kind of arm support, including rotating table and multiple above-mentioned arm bodies, each the arm body is gradually slid and cooperates to form telescopic arm;
[0013] First the arm body is hinged on the rotating table, and first the arm body is hinged with the rotating table and is hinged with pitching drive.
[0014] In one of the embodiments, the arm support further includes a shield corresponding to each of the arm bodies, each of the shields is gradually slid and cooperated, and each of the shields is rigidly connected to the corresponding arm body.
[0015] In one of the embodiments, the shield is an arc-shaped plate or a bent plate with a U-shaped structure, and the shield is arranged on the corresponding arm body.
[0016] The outer wall of the arm body is rigidly connected to a shield seat, and the shield seat is rigidly connected to the corresponding shield.
[0017] In one of the embodiments, a sliding block is arranged between two adjacent shields.
[0018] In one of the embodiments, the arm support further includes a binding oil cylinder with telescopic rods at both ends, and the number of the arm bodies is at least three.
[0019] The telescopic rod at the first end of the binding oil cylinder is hinged to the first arm body, and the telescopic rod at the second end of the binding oil cylinder is hinged to the third arm body.
[0020] In one of the embodiments, the arm support further includes a telescopic oil cylinder with one telescopic rod, and the number of the arm bodies is four.
[0021] The cylinder body of the telescopic oil cylinder is fixedly connected to the third arm body, and the telescopic rod of the telescopic oil cylinder is fixedly connected to the fourth arm body.
[0022] To achieve the above object, the utility model provides a kind of concrete wet spraying machine, including machine body, spray head and above-mentioned arm support, the rotating table on the arm support is arranged on the machine body, and the spray head is arranged on the arm body of the last stage of the arm support.
[0023] Compared with the prior art, the utility model has the following beneficial technical effects:
[0024] 1. In the utility model, the arm body is made by the way of lap joint welding of the first bent plate and the second bent plate, which does not need complex beveling processing compared with butt welding, not only the welding process is simple and suitable for automatic welding, but also time and cost are saved, and the mutual covering way of the two bent plates has good sealing performance, is beneficial to concentrated welding, and makes the double-layer part of the arm body not easy to deform.
[0025] 2. The arm support in the utility model, adopt one end fixed in a section of arm body, the other end is through the slide block to be placed on the adjacent inner layer shield, realize the function that the shield is fixed with the arm body synchronous extension and contraction sliding, compared with the way of installing slide rail in the arm support side, simple structure, not easy to damage, save space, can effectively reduce quality and cost.
[0026] 3. The arm support in the utility model can set different arm body quantity according to demand, for example, the arm support can be set to four sections of arms, three-stage telescopic form, can effectively expand the operation range distance, and the function is stronger. BRIEF DESCRIPTION OF DRAWINGS
[0027] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to the structure shown in these drawings without creating labor.
[0028] Figure 1 It is the sectional view of the arm body in the embodiment 1 of the utility model;
[0029] Figure 2 It is the isometric view of the arm support in the embodiment 2 of the utility model;
[0030] Figure 3 It is the sectional view of the telescopic arm in the embodiment 2 of the utility model;
[0031] Figure 4 It is the isometric view of the telescopic arm with shield in the embodiment 2 of the utility model;
[0032] Figure 5 It is the sectional view of the shield in the embodiment 2 of the utility model;
[0033] Figure 6 It is the partial isometric view of the telescopic arm with shield in the embodiment 2 of the utility model.
[0034] Drawing reference: first bending plate 1, first plate body 101, second plate body 102, third plate body 103, second bending plate 2, fourth plate body 201, fifth plate body 202, sixth plate body 203, rotary table 3, telescopic arm 4, arm body 401, pitch drive 5, shield 6, shield seat 7, connecting plate 8, slide block 9, binding oil cylinder 10, telescopic oil cylinder 11, spray head 12, 360 ° swing cylinder 13.
[0035] The realization of the utility model, functional characteristics and advantages will be further described with reference to the drawings. DETAILED DESCRIPTION
[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.
[0037] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.
[0038] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0039] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection, or physical connection or wireless communication connection; can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements or interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0040] In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the fact that those skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.
[0041] As Figure 1 The arm body disclosed in the embodiment mainly comprises a first bending plate 1 and a second bending plate 2. The first end of the first bending plate 1 and the first end of the second bending plate 2 are overlapped and welded and fixed. The second end of the first bending plate 1 and the second end of the second bending plate 2 are overlapped and welded and fixed.
[0042] The arm body is made by the way of lap welding of the first bent plate 1 and the second bent plate 2, compared with the conventional butt welding (i.e. welding after aligning the ends of the two bent plates), without complex beveling processing, not only the welding process is simple and suitable for automatic welding, but also time and cost are saved, at the same time, the sealing performance is good due to the mutual covering of the two bent plates, which is beneficial to concentrated welding, and the double-layer part of the arm body is not easy to deform.
[0043] In the specific implementation process, the first bent plate 1 includes a first plate body 101 and second and third plate bodies 102 and 103 integrally formed at both ends of the first plate body 101, and the second bent plate 2 includes a fourth plate body 201 and fifth and sixth plate bodies 202 and 203 integrally formed at both ends of the fourth plate body 201. The second plate body 102 and the fifth plate body 202 partially or completely overlap and are welded and fixed, and the third plate body 103 and the sixth plate body 203 partially or completely overlap and are welded and fixed.
[0044] Preferably, the widths of the second and third plate bodies 102 and 103 are greater than those of the fifth and sixth plate bodies 202 and 203, and the two ends of the first bent plate 1 are located outside the two ends of the second bent plate 2, that is, the side with a large width of the arm body entirely covers the side with a small width. By completely covering the narrow plate body with the wide plate body, a double-layer metal overlapping structure is formed in the lap area, which not only effectively blocks the invasion of external dust and water vapor into the weld gap, so that the arm body can be used for a long time in humid and dusty working conditions, but also provides additional support for the inner narrow plate body as the outer layer, which can significantly reduce the risk of shrinkage deformation caused by welding heat input.
[0045] It is worth noting that in the specific application process, the implementation structure of the wide plate body completely covering the narrow plate body is not limited, and the first end of the first bent plate 1 can be located inside the first end of the second bent plate 2, and the second end of the first bent plate 1 can be located outside the second end of the second bent plate 2 according to the use requirements. In addition, although the first and fourth plate bodies 101 and 201 are V-shaped plates in the embodiment, the first and fourth plate bodies 101 and 201 can be set as flat plates, arc-shaped plates or other shape structures in the specific application.
[0046] Embodiment 2
[0047] Reference Figure 2 The embodiment discloses an arm support, which mainly includes a rotary table 3 and a telescopic arm 4, and the telescopic arm 4 is composed of a plurality of arm bodies 401 in the embodiment 1. Reference Figure 3, a plurality of arm bodies 401 are arranged in a nested manner, and adjacent two layers of arm bodies 401 are slidably connected through a gap, so as to form an arm support capable of multi-stage expansion and contraction. The outermost arm body 401 is defined as the first-stage arm body, and the innermost arm body 401 is defined as the last-stage arm body. The first-stage arm body 401 is hingedly connected to the rotary table 3 through a pin shaft, and a pitch driving mechanism 5 is further hingedly connected between the outer wall of the first-stage arm body and the rotary table 3.
[0048] With reference to Figure 4 , Figure 5 The arm support in the embodiment further comprises a shield 6 corresponding to each arm body 401. Each shield 6 is slidably connected to the corresponding arm body 401 in a nested manner, and each shield 6 is rigidly connected to the corresponding arm body 401. That is, the shield 6 can synchronously expand and contract with the corresponding arm body 401. Compared with the structure of installing sliding rails on the side of the arm support, the synchronously slidable shield 6 in the embodiment is simple in structure, not easy to be damaged, saves space, and can effectively reduce the mass and cost of the arm support as a whole.
[0049] In the specific implementation process, the shield 6 is an arc-shaped plate or a bent plate in a U-shaped structure, and the shield 6 is arranged on the corresponding arm body 401 during assembly. Specifically, a shield seat 7 is rigidly connected to the outer wall of the arm body 401 by welding or bolt connection, and the shield seat 7 is fixedly connected to the corresponding shield 6 by a bolt or the like.
[0050] In the embodiment, the nested form of each shield 6 is opposite to that of each arm body 401. That is, the upper-stage arm body is nested on the lower-stage arm body, and the shield corresponding to the lower-stage arm body is nested on the shield corresponding to the upper-stage arm body. Figure 6 The first end of the shield 6 corresponding to the last-stage arm body 401 is welded with a connecting plate 8, and the connecting plate 8 is fixedly connected to the corresponding shield seat 7 by a bolt. The first end of the shield 6 corresponding to the second-to-last-stage arm body 401 is located on the inner side of the second end of the shield 6 corresponding to the last-stage arm body 401, and the inner wall of the first end of the shield 6 corresponding to the second-to-last-stage arm body 401 is fixedly connected to the corresponding shield seat 7 by a bolt. In the embodiment, the arm support is mainly applied to a concrete wet spraying machine. When the arm support is applied, the arm support is mostly in an inclined upward state. By setting the nested form of each shield 6 opposite to that of each arm body 401, that is, by nesting the shields 6 inward layer by layer from the last stage, a shelter structure similar to a “roof eave” can be formed, thereby effectively preventing concrete and sandstone from splashing into the gap between the arm bodies 401 from the connecting part of the shield 6.
[0051] In the specific implementation process, a sliding block 9 is arranged between adjacent two shields 6, so that the expansion and contraction process of the shield 6 can be more stable. Figure 6 In the specific implementation process, the sliding block 9 is fixedly connected to the inner wall of the second end of the shield 6 corresponding to the lower-stage arm body 401 by a bolt, as shown in
[0052] With reference toFigure 2 , the arm frame further comprises a binding oil cylinder 10 with telescopic rods at both ends, the number of the arm bodies 401 is at least three, the cylinder body of the binding oil cylinder 10 is fixedly connected to the second-stage arm body 401, the telescopic rod at the first end of the binding oil cylinder 10 is hingedly connected to the first-stage arm body 401, the telescopic rod at the second end of the binding oil cylinder 10 is hingedly connected to the third-stage arm body 401, the telescopic movement of the second-stage arm body 401 is controlled by the telescopic rod at the first end of the binding oil cylinder 10, and the telescopic movement of the third-stage arm body 401 is controlled by the telescopic rod at the second end of the binding oil cylinder 10, that is, two-stage telescopic control is realized. In the embodiment, the number of the arm bodies 401 is four, the arm frame further comprises a telescopic oil cylinder 11 with a telescopic rod, the cylinder body of the telescopic oil cylinder 11 is fixedly connected to the third-stage arm body 401, and the telescopic rod of the telescopic oil cylinder 11 is fixedly connected to the fourth-stage arm body 401, that is, the telescopic movement of the fourth-stage arm body 401 is realized by the telescopic oil cylinder 11, and three-stage telescopic control is realized.
[0053] Embodiment 3
[0054] The embodiment discloses a concrete wet spraying machine, which mainly comprises a machine body, a spraying head 12 and the arm frame of the embodiment 2, the rotating table 3 on the arm frame is arranged on the machine body, the spraying head 12 is arranged at the end of the arm body 401 of the last stage of the arm frame through a 360° swing cylinder 13, that is, Figure 2 as shown.
[0055] In the specific application process, the spraying position of the spraying head can be adjusted in a large range through the rotation of the rotating table 3 and the telescopic movement of the pitch driving 5, the spraying position of the spraying head can be finely adjusted in a small range through the 360° rotation of the 360° swing cylinder 13 and the independent swing of the spraying head 12.
[0056] The above only describes preferred embodiments of the utility model, and does not limit the protection scope of the utility model, equivalent structural transformation made by using the utility model specification and the drawings, or direct / indirect application in other related technical fields are included in the protection scope of the utility model.
Claims
1. An arm body, characterized by, The first bent plate and the second bent plate are overlapped and welded at the first ends and the second ends. The first bent plate comprises a first plate body and second and third plate bodies integrally formed at both ends of the first plate body, and the second bent plate comprises a fourth plate body and fifth and sixth plate bodies integrally formed at both ends of the fourth plate body. The second and third plate bodies have a width greater than that of the fifth and sixth plate bodies, and the two ends of the first bent plate are located outside the two ends of the second bent plate.
2. The arm of claim 1, wherein The first and fourth plate bodies are flat, V-shaped or arc-shaped.
3. An arm support, characterized in that The rotary table and a plurality of arms according to claim 1 or 2 are slidably connected to form a telescopic arm. The first arm is hingedly connected to the rotary table, and a pitch drive is arranged between the first arm and the rotary table.
4. The arm as claimed in claim 3, characterized in that A cover corresponding to each arm is further provided, and the covers are slidably connected to the arms.
5. The arm as claimed in claim 4, characterized in that The cover is a U-shaped arc-shaped plate or a bent plate. A cover seat is rigidly connected to the outer wall of the arm.
6. The arm as claimed in claim 4, characterized in that A sliding block is arranged between two adjacent covers.
7. The arm as claimed in claim 4, characterized in that A binding cylinder with telescopic rods at both ends is further provided, and the number of arms is at least three. The telescopic rod at the first end of the binding cylinder is hingedly connected to the first arm, and the telescopic rod at the second end of the binding cylinder is hingedly connected to the third arm.
8. The boom of claim 7, wherein, A telescopic cylinder with one telescopic rod is further provided, and the number of arms is four. The cylinder body of the telescopic cylinder is fixedly connected to the third arm, and the telescopic rod of the telescopic cylinder is fixedly connected to the fourth arm.
9. A concrete wet sprayer characterized by, The rotary table of the arm is arranged on the machine body, and the spray head is arranged on the last arm of the arm.