Boom system of concrete guniting vehicle

Abstract

The utility model discloses a cantilever crane system of a concrete spraying vehicle. The cantilever crane system comprises a rotary table, a first arm, an arm seat and a second arm, the first arm is hinged to the rotary table, and a first pitching drive is hinged between the rotary table and the first arm. The arm seat is hinged to the first arm, a connecting rod is hinged to the first arm, a connecting frame is hinged to the arm seat, and the connecting rod is hinged to the connecting frame; a second pitching drive is hinged between the connecting rod and the first arm, or a second pitching drive is hinged between the hinged point of the connecting rod and the connecting frame and the first arm; and the second arm is arranged on the arm seat. The cantilever crane is applied to the field of tunnel construction, the connecting rod and the connecting frame are arranged to form a triangular hinge structure between the first arm and the second arm, large-amplitude pitching action and stress of the cantilever crane are achieved, the angle design and the stress condition of a cantilever crane system can be effectively optimized, and the problems that the pitching angle is small, stress is complex, and stability is poor are solved; the construction requirements are met, the manufacturing cost is reduced, the occupied space is reduced, and wide market application prospects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a concrete shotcrete vehicle boom system. Background Art

[0002] With the development of the automated boom system of concrete spraying vehicles, the existing booms of concrete spraying vehicles on the market generally use telescopic cylinders to directly connect the two booms, but the cylinder support is large in size, occupies a large space, has high manufacturing costs, and has a small pitch control angle. Some concrete spraying vehicles also use arc-shaped connecting rods to connect the base and the boom to achieve this, such as the anti-node boom connecting rod mechanism provided by utility model patent CN203805109U. Although this structure is simple, it has less force, is top-heavy, and has concentrated boom weight, which poses a risk of tipping over. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a concrete shotcrete vehicle boom system, which can fully utilize space and reduce manufacturing costs, solve the problems of small pitch angle, complex force, poor stability, etc., and has broad market application prospects.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a concrete shotcrete vehicle arm system, comprising a turntable, a first arm, an arm seat and a second arm;

[0005] The first arm is hinged on the turntable, and a first pitch drive is hinged between the turntable and the first arm;

[0006] The arm seat is hinged on the first arm, a connecting rod is hinged on the first arm, a connecting frame is hinged on the arm seat, and the connecting rod and the connecting frame are hinged to each other;

[0007] A second pitch drive is hinged between the connecting rod and the first arm, or a second pitch drive is hinged between the connecting rod, the hinge point of the connecting frame and the first arm;

[0008] The second arm is arranged on the arm seat.

[0009] In one embodiment, the number of the connecting rods is two, and the two connecting rods are symmetrically hinged on both sides of the first arm;

[0010] The connecting frame and the second pitch drive are located between the two connecting rods and are respectively hinged to the two connecting rods.

[0011] In one embodiment, the connecting rod is a rod-shaped structure;

[0012] The first end of the connecting rod is hinged to the first arm, and the connecting frame and the second pitch drive are both hinged to the second end of the connecting rod.

[0013] In one embodiment, the connecting rod is a special-shaped plate structure;

[0014] The first end of the connecting rod is hinged to the first arm, the second end of the connecting rod is hinged to the connecting frame, and the third end of the connecting rod is hinged to the second pitch drive.

[0015] In one embodiment, the second arm is connected to the side of the arm base, and a lamp holder device is provided on the top of the arm base.

[0016] In one embodiment, the turntable includes a bottom plate and a supporting body disposed on the bottom plate, and the supporting body is a tapered structure that is narrow at the top and wide at the bottom;

[0017] The first arm is hinged on the top of the support body, and the first pitch drive is hinged on the side of the support body and / or the bottom plate.

[0018] In one embodiment, the support body includes two support plates and two connecting rib plates;

[0019] The support plate is a trapezoidal plate or a triangular plate, the two support plates are symmetrically connected to the bottom plate, and the first arm is hinged on the top of the two support plates;

[0020] The connecting rib plate is a rectangular plate, and the two sides of the two support plates are connected via the connecting rib plate.

[0021] In one embodiment, the turntable further comprises an ear plate, a side end of the ear plate is connected to the supporting body, and a bottom end of the ear plate is connected to the bottom plate;

[0022] The first pitch drive is hinged on the ear plate.

[0023] In one embodiment, the support body further includes a reinforcing rib plate;

[0024] The reinforcing rib plate is a rectangular plate, and the reinforcing rib plate is respectively connected to the two supporting plates and the two connecting rib plates.

[0025] In one embodiment, the support body further includes side panels corresponding to the support panels one by one;

[0026] The side panel is a bent plate or an arc-shaped plate, both ends of the side panel are connected to the outer wall of the corresponding support plate, and the bottom of the side panel is connected to the bottom plate.

[0027] Compared with the prior art, the utility model has the following beneficial technical effects:

[0028] 1. The utility model arranges a connecting rod and a connecting frame between the first arm and the second arm to articulate the second pitch drive, forms a triangular hinge structure between the first arm and the second arm, and utilizes a stable triangular support to achieve a large pitch motion and force of the arm. By reasonably arranging the hinge points, the angle design and force condition of the arm system can be effectively optimized, and the problems of small pitch angle, complex force, poor stability, etc. can be solved, which meets the construction requirements, reduces the manufacturing cost and reduces the occupied space, and has a wide market application prospect;

[0029] 2. The first arm and the second arm on the boom system of the utility model form a five-node connecting rod through the connecting rod, the connecting frame and the second pitch drive, which enhances the synchronization of the first pitch drive and the second pitch drive, thereby achieving the effects of improving overall strength and quality, facilitating operation control, uniform force, extending service life and ensuring stability;

[0030] 3. In the preferred embodiment of the utility model, the turntable adopts a conical structure support body, so that the turntable has higher strength and better stability to cope with long-term and large-angle mechanical arm rotation operations, effectively improve the reliability and safety of the concrete spraying truck during the construction process, and ensure its efficient operation in complex working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0032] Figure 1 It is a first isometric view of the boom system in the embodiment of the utility model;

[0033] Figure 2 It is a second axonometric view of the boom system in the embodiment of the utility model;

[0034] Figure 3 This is a front view of the boom system in the embodiment of the utility model when operating at a low position;

[0035] Figure 4 This is a front view of the boom system in the embodiment of the utility model when operating at a high position;

[0036] Figure 5 It is an axonometric view of the turntable in the embodiment of the utility model.

[0037] Figure numbers: turntable 1, base plate 101, support plate 102, connecting rib plate 103, ear plate 104, reinforcing rib plate 105, side panel 106, first arm 2, arm seat 3, second arm 4, first pitch drive 5, connecting rod 6, connecting frame 7, second pitch drive 8, lamp stand device 9.

[0038] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0044] like Figure 1 , Figure 2 The figure shows a concrete spraying vehicle boom system (hereinafter referred to as “boom system”) disclosed in this embodiment, which mainly includes a turntable 1, a first arm 2, an arm seat 3 and a second arm 4.

[0045] The turntable 1 is connected to the slewing support on the concrete shotcrete vehicle to drive the entire arm system to slew on the concrete shotcrete vehicle. The first arm 2 is hinged on the turntable 1, and a first pitch drive 5 is hinged between the turntable 1 and the first arm 2. The first pitch drive 5 is specifically a telescopic cylinder, so that the first arm 2 can perform a pitching motion on the turntable 1 under the action of the first pitch drive 5.

[0046] The second arm 4 is arranged on the arm seat 3, the arm seat 3 is hinged on the first arm 2, a connecting rod 6 is hinged on the first arm 2, a connecting frame 7 is hinged on the arm seat 3, and the connecting rod 6 and the connecting frame 7 are hinged to each other, a second pitch drive 8 is hinged between the connecting rod 6 and the first arm 2, or a second pitch drive 8 is hinged between the hinge point of the connecting rod 6 and the connecting frame 7 and the first arm 2.

[0047] refer to Figure 3 When the boom system is performing low-position construction work, the first pitch drive 5 contracts to make the first arm 2 at the lowest horizontal point. At the same time, the second pitch drive 8 extends and retracts to push the connecting rod 6 and the connecting frame 7 to rotate. The angle between the first arm 2 and the arm seat 3 changes, and the pitch action of the second arm 4 can be realized. Figure 3 The figure shows a posture in which the first arm 2 and the second arm 4 are at the same level.

[0048] refer to Figure 4 When the boom system performs high-position construction work, the first arm 2 is lifted up by the first pitch drive 5, driving the second arm 4 to be lifted up as a whole, driving the second pitch drive 8, and the angle between the connecting rod 6 and the connecting frame 7 changes. The angle between the first arm 2 and the arm seat 3 changes accordingly, and the second arm 4 fixedly connected to the arm seat 3 can pitch. Figure 4 The figure shows the posture of the second arm 4 working horizontally and forwardly.

[0049] By arranging the connecting rod 6 and the connecting frame 7 between the first arm 2 and the arm seat 3 to hinge the second pitch drive 8, a triangular hinge structure is formed between the first arm 2 and the second arm 4, and a large pitch motion and force of the boom are realized by using a stable triangular support. In addition, by reasonably arranging the hinge points, the angle design and force conditions of the boom system can be effectively optimized, and the problems of small pitch angle, complex force, and poor stability of the boom system can be solved, so as to meet the construction requirements, reduce the manufacturing cost and reduce the occupied space. At the same time, the first arm 2 and the second arm 4 form a five-node connecting rod through the connecting rod 6, the connecting frame 7 and the second pitch drive 8, which enhances the synchronization of the first pitch drive 5 and the second pitch drive 8, so as to achieve the effects of improving the overall strength and quality, good operation control, uniform force, extended service life and guaranteed stability, so that the boom system in this embodiment has a broad market application prospect.

[0050] As a preferred embodiment, there are two connecting rods 6, and the two connecting rods 6 are symmetrically hinged on both sides of the first arm 2 through two pins or one pin, and the connecting frame 7 and the second pitch drive 8 are located between the two connecting rods 6 and are respectively hinged to the two connecting rods 6, so as to effectively increase the stability of the connection structure between the first arm 2 and the arm base 3. Of course, in the specific application process, the connecting rod 6 can be set to one, the connecting frame 7 can be set to two, or the connecting rod 6 and the connecting frame 7 can be set to one.

[0051] refer to Figure 1 , Figure 2 The connecting rod 6 in this embodiment is a rod-shaped structure. Specifically, the first end of the connecting rod 6 is hinged to the first arm 2, and the connecting frame 7 and the second pitch drive 8 are both hinged to the second end of the connecting rod 6, that is, the connecting rod 6, the connecting frame 7, and the second pitch drive 8 are hinged at the same point.

[0052] It is worth noting that in the specific application process, the connecting rod is not limited to a rod-shaped structure. For example, the connecting rod can also be set as a special-shaped structure such as a triangular plate, the first end of the connecting rod is hinged to the first arm, the second end of the connecting rod is hinged to the connecting frame, and the third end of the connecting rod is hinged to the second pitch drive.

[0053] In the specific implementation process, the second arm 4 is fixedly connected to the side of the arm base 3 by a clamp, a bolt and other structures, and the top of the arm base 3 is fixed with a lamp holder device 9 by bolts. Among them, the second arm 4 can be a telescopic arm, and there is a hinge between the lamp holder device 9 and the arm base 3, so that the lighting direction can be adjusted as needed.

[0054] In this embodiment, the turntable 1 includes a bottom plate 101 and a supporting body arranged on the bottom plate 101, the supporting body is a tapered structure that is narrow at the top and wide at the bottom, the first arm 2 is hinged at the top of the supporting body, and the first pitch drive 5 is hinged at the side of the supporting body and / or the bottom plate 101. By adopting a supporting body with a tapered structure, the turntable 1 has higher strength and better stability to cope with long-term and large-angle arm rotation operations, effectively improve the reliability and safety of the concrete spraying vehicle during the construction process, and ensure that it can operate efficiently in a complex working environment.

[0055] refer to Figure 5 , the support body includes two support plates 102 and two connecting ribs 103. The support plates 102 are trapezoidal plates or triangular plates. The two support plates 102 are symmetrically connected to the base plate 101 by welding. A hinge hole is provided on the top, and a reinforcing ring is provided at the position corresponding to the hinge hole on the support plate 102 to disperse the load and resist impact and vibration. The connecting rib 103 is a rectangular plate. The two sides of the two support plates 102 are connected by the connecting ribs 103, that is, the two sides of the connecting ribs 103 are welded to the inner walls of the two support plates 102, thereby forming a support body of a hollow quadrangular pyramid structure. The support body is formed by welding four plates, and there is no high requirement for welding. The structure is simple and easy to weld and assemble, thereby saving materials and working hours.

[0056] More specifically, the turntable 1 further includes an ear plate 104, the side end of the ear plate 104 is connected to a connecting rib plate 103, the bottom end of the ear plate 104 is connected to the bottom plate 101, and the first pitch drive 5 is hinged on the ear plate 104. This allows the ear plate 104 to transfer the load to the supporting body and the bottom plate 101, thereby improving the service life of the ear plate 104.

[0057] As a preferred embodiment, the support body further includes a reinforcing rib plate 105 and a side panel 106. The reinforcing rib plate 105 is a rectangular plate, and the reinforcing rib plate 105 is respectively welded and fixed to the two support plates 102 and the two connecting rib plates 103, and the side panel 106 is a bent plate or an arc plate, and the two ends of the side panel 106 are connected to the outer wall of the support plate 102, and the bottom of the side panel 106 is connected to the bottom plate 101, so as to further improve the structural strength of the support body.

[0058] As a preferred embodiment, hollow grooves are provided on the bottom plate 101, the support plate 102, the connecting rib plate 103 and / or the reinforcing rib plate 105 to reduce the weight of the turntable 1. Specifically in this embodiment, the bottom plate 101, the support plate 102, the connecting rib plate 103 and the reinforcing rib plate 105 are each provided with at least one hollow groove.

[0059] As a preferred embodiment, a sunken clearance groove is provided on the top of the connecting rib plate 103 to avoid interference with the first arm 2 hinged on the top of the support plate 102 .

[0060] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A concrete spraying vehicle boom system, characterized in that: It includes a turntable, a first arm, an arm base and a second arm; The first arm is hinged on the turntable, and a first pitch drive is hinged between the turntable and the first arm; The arm seat is hinged on the first arm, a connecting rod is hinged on the first arm, a connecting frame is hinged on the arm seat, and the connecting rod and the connecting frame are hinged to each other; A second pitch drive is hinged between the connecting rod and the first arm, or a second pitch drive is hinged between the connecting rod, the hinge point of the connecting frame and the first arm; The second arm is arranged on the arm seat.

2. The concrete spraying vehicle boom system according to claim 1, characterized in that: The number of the connecting rods is two, and the two connecting rods are symmetrically hinged on both sides of the first arm; The connecting frame and the second pitch drive are located between the two connecting rods and are respectively hinged to the two connecting rods.

3. The concrete spraying vehicle boom system according to claim 1 or 2, characterized in that: The connecting rod is a rod-shaped structure; The first end of the connecting rod is hinged to the first arm, and the connecting frame and the second pitch drive are both hinged to the second end of the connecting rod.

4. The concrete spraying vehicle boom system according to claim 1 or 2, characterized in that: The connecting rod is a special-shaped plate structure; The first end of the connecting rod is hinged to the first arm, the second end of the connecting rod is hinged to the connecting frame, and the third end of the connecting rod is hinged to the second pitch drive.

5. The concrete spraying vehicle boom system according to claim 1 or 2, characterized in that: The second arm is connected to the side of the arm seat, and a lamp holder device is arranged on the top of the arm seat.

6. The concrete spraying vehicle boom system according to claim 1 or 2, characterized in that: The turntable comprises a bottom plate and a supporting body arranged on the bottom plate, wherein the supporting body is a tapered structure that is narrow at the top and wide at the bottom; The first arm is hinged on the top of the support body, and the first pitch drive is hinged on the side of the support body and / or the bottom plate.

7. The concrete spraying vehicle boom system according to claim 6, characterized in that: The supporting body comprises two supporting plates and two connecting rib plates; The support plate is a trapezoidal plate or a triangular plate, the two support plates are symmetrically connected to the bottom plate, and the first arm is hinged on the top of the two support plates; The connecting rib plate is a rectangular plate, and the two sides of the two support plates are connected via the connecting rib plate.

8. The concrete spraying vehicle boom system according to claim 6, characterized in that: The turntable further comprises an ear plate, a side end of the ear plate is connected to the supporting body, and a bottom end of the ear plate is connected to the bottom plate; The first pitch drive is hinged on the ear plate.

9. The concrete spraying vehicle boom system according to claim 7, characterized in that: The support body also includes a reinforcing rib plate; The reinforcing rib plate is a rectangular plate, and the reinforcing rib plate is respectively connected to the two supporting plates and the two connecting rib plates.

10. The concrete spraying vehicle boom system according to claim 7, characterized in that: The support body also includes side panels corresponding to the support panels one by one; The side panel is a bent plate or an arc-shaped plate, both ends of the side panel are connected to the outer wall of the corresponding support plate, and the bottom of the side panel is connected to the bottom plate.

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