Rotary table and overhead working truck

Abstract

The utility model provides a rotary table and an overhead working truck. The rotary table comprises a body and a balance weight. The body comprises a bottom plate, two first vertical plates arranged on the bottom plate in a spaced mode, two second vertical plates arranged on the outer sides of the two first vertical plates respectively, and a back plate connected between the two first vertical plates. The counter weight comprises a first box body and second box bodies connected to the two ends of the first box body, a mounting cavity is formed between the two second box bodies, the bottom plate is arranged on the lower surface of the counter weight, one ends of the two second vertical plates and one ends of the two first vertical plates are arranged in the mounting cavity, and the first box bodies are connected with the back plate. Aiming at the characteristics of the electric crank arm aerial work platform, the utility model provides the novel rotary table, the design of a traditional covering piece is cancelled, the design structure of the rotary table is simplified, the arrangement space in the rotary table is reduced, and the problem that collision is easy to generate under complex working conditions is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric aerial work platforms, in particular to a turntable and an aerial work vehicle. Background Art

[0002] Traditional diesel-powered boom lifts typically have an engine and diesel tank mounted on a turntable. This, on the one hand, requires a larger turntable installation space, and on the other, requires the placement of large covers. However, with the increasing adoption of electric boom lifts, the use of engines and diesel tanks will be eliminated. Using a diesel-powered turntable in an electric boom lift would result in a significant waste of cover space. Furthermore, due to complex construction conditions on site, the turntable's rotation could easily cause collisions with the cover, increasing points of failure and repair. Utility Model Content

[0003] The purpose of the utility model is to provide a turntable and an aerial work vehicle suitable for an electric vehicle, which can reduce the turntable space and the arrangement of covering parts.

[0004] The technical solution of the present utility model is: a turntable, including a main body and a counterweight, the main body including a bottom plate, two first vertical plates spaced apart on the bottom plate, two second vertical plates respectively arranged on the outside of the two first vertical plates and a back plate connected between the two first vertical plates; the counterweight includes a first box body and a second box body connected to both ends of the first box body, an installation cavity is formed between the two second boxes, the bottom plate is placed on the lower surface of the counterweight, the two second vertical plates and one end of the two first vertical plates are placed in the installation cavity, and the first box body is connected to the back plate.

[0005] In the above scheme, based on the characteristics of the electric articulated boom aerial work platform, a new turntable is provided, which eliminates the design of traditional covering parts, simplifies the design structure of the turntable, reduces the layout space inside the turntable, and solves the problem of collisions that are prone to occur in complex working conditions.

[0006] Preferably, the second vertical plate is flush with one end of the first vertical plate and is connected to the flush end via a first sealing plate; the length of the second vertical plate is shorter than that of the first vertical plate, and the second vertical plate is connected to the first vertical plate via a second sealing plate.

[0007] Preferably, the second vertical plate is provided with a first hinge hole and a second hinge hole which pass through the first vertical plate, a shaft sleeve is installed in the first hinge hole, and the second hinge hole is located above the first hinge hole.

[0008] Preferably, a first mounting hole is provided on the back plate, and a connecting piece is provided on the side wall of the first box body located in the mounting cavity, and the connecting piece is connected to the first mounting hole.

[0009] Preferably, a door hinged by a door hinge is provided on a side wall of the second box body away from the installation cavity, a gas spring is connected between the door and the side wall of the second box body, and a door lock is provided on the side of the door away from the door hinge.

[0010] Preferably, a cover plate detachably connected via fasteners is provided on a side wall of the second box body away from the first box body.

[0011] Preferably, the upper surface of the first box body is provided with a pouring cover for pouring concrete into the first box body.

[0012] Preferably, a first notch extending upward is provided on a side of the first box body facing the installation cavity, and a second notch extending upward is provided on a side of the second box body facing the installation cavity.

[0013] Preferably, a first process hole is provided on the side wall of the second box body forming the installation cavity, and a second process hole is provided on the side wall of the second box body forming the second notch. The second pin is installed through the first process hole, and the first pin is installed through the second process hole.

[0014] The utility model also provides an aerial work vehicle, comprising a chassis, an arm and the above-mentioned turntable, wherein the bottom plate of the turntable is mounted on the chassis, and the arm is hinged to the body of the turntable.

[0015] Compared with the related art, the beneficial effects of the present invention are:

[0016] 1. This utility model provides a new turntable based on the characteristics of the electric articulated boom aerial work platform, which eliminates the design of traditional covers, simplifies the design structure of the turntable, reduces the layout space inside the turntable, and solves the problem of collisions easily occurring in complex working conditions;

[0017] Second, the counterweight is formed by three box-shaped structures, which not only increases the stability of its own structure, but also provides stability when the main body is working and rotating;

[0018] 3. The counterweight is divided into three boxes according to its function. The first box is filled with concrete to reduce costs and improve the counterweight effect. The electric control box and hydraulic main valve are placed in the functional area, and a door is provided on the second box for easy operation and maintenance.

[0019] 4. The end where the main body is connected to the counterweight is designed as a box-type structure surrounded by a bottom plate, a first closing plate, two vertical plates and a second closing plate, which greatly improves the bearing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the aerial work vehicle provided by the utility model;

[0021] Figure 2 This is a schematic diagram of the installation of the turntable and arm;

[0022] Figure 3 It is a structural diagram of the main body in the turntable;

[0023] Figure 4 Schematic diagram of the structure when the counterweight is in the turntable and the door is closed;

[0024] Figure 5 is a top view of the counterweight;

[0025] Figure 6 Schematic diagram of the structure with the counterweight in the turntable and the door open;

[0026] Figure 7 Schematic diagram of the turntable and arm installation process.

[0027] In the accompanying drawings: 1, chassis; 2, turntable; 21, body; 211, bottom plate; 212, first vertical plate; 213, second vertical plate; 214, first closing plate; 215, back plate; 216, first hinge hole; 217, second hinge hole; 218, second closing plate; 219, first mounting hole; 2110, second mounting hole; 2111, shaft sleeve; 22, counterweight; 221, second box; 2211, door; 2212, cover plate; 2213, Door hinge; 2214, gas spring; 2215, door lock; 222, first box body; 223, installation cavity; 224, first notch; 225, second notch; 226, first process hole; 227, second process hole; 228, casting cover; 229, connector; 23, first pin shaft; 24, angle sensor; 25, ground control box; 26, second pin shaft; 3, boom; 31, first hinge point; 32, second hinge point; 4, working platform. DETAILED DESCRIPTION

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments and features of the embodiments of the present invention may be combined unless they conflict. For ease of description, the words "upper," "lower," "left," and "right" appear below merely to indicate the directions of upper, lower, left, and right in the accompanying drawings and do not limit the structure.

[0029] like Figure 1 As shown, the aerial work platform provided in this embodiment includes a chassis 1, a turntable 2, an arm 3 and a work platform 4. The turntable 2 is rotatably mounted on the chassis 1, one end of the arm 3 is hinged to the turntable 2, and the other end of the arm 3 is connected to the work platform 4.

[0030] like Figure 2 As shown, the turntable 2 includes a body 21 and a counterweight 22. Figure 3As shown, the body 21 includes a bottom plate 211 , two first vertical plates 212 spaced apart on the bottom plate 211 , two second vertical plates 213 disposed outside the two first vertical plates 212 , and a back plate 215 connected between the two first vertical plates 212 .

[0031] The second vertical panel 213 is shorter than the first vertical panel 212. It is flush with one end of the first vertical panel 212 and connected to this flush end via a first sealing panel 214. The remaining space between the second vertical panel 213 and the first vertical panel 212 is connected via a second sealing panel 218. The bottom panel 211, the first vertical panel 212, the second vertical panel 213, and the first sealing panel 214 form a box body, which is symmetrically arranged outside the first vertical panel 212.

[0032] A second mounting hole 2110 for connecting to the counterweight 22 is provided at one end of the bottom plate 211, near the second vertical plate 213. A hole for mounting a slewing bearing is provided at the other end of the bottom plate 211, between the two first vertical plates 212. A first hinge hole 216 and a second hinge hole 217 are provided on the second vertical plate 213, extending through the first vertical plates 212. A sleeve 2111 for mounting the second pin 26 is installed in the first hinge hole 216, and the second hinge hole 217 is located above the first hinge hole 216. The back plate 215 is located near the first closing plate 214 and is provided with a first mounting hole 219.

[0033] like Figure 5 As shown, the counterweight 22 includes a first box body 222 and a second box body 221 vertically connected to both ends of the first box body 222, and a mounting cavity 223 is formed between the two second boxes 221. The first box body 222 is provided with a connecting piece 229 on the side wall of the mounting cavity 223. Figure 2 As shown, the bottom plate 211 is placed on the lower surface of the counterweight 22, the two second vertical plates 213 and one end of the two first vertical plates 212 are placed in the installation cavity 223, the connecting piece 229 on the first box body 222 is installed in the first installation hole 219 on the back plate 215, and the lower end of the second box body 221 of the counterweight 22 is connected to the second installation hole 2110.

[0034] like Figure 4 、 Figure 6 As shown, a door 2211 hinged by a door hinge 2213 is provided on a side wall of the second box body 221 away from the installation cavity 223. A gas spring 2214 is connected between the door 2211 and the side wall of the second box body 221, and a door lock 2215 is provided on the side of the door 2211 away from the door hinge 2213. Figure 7 As shown, a ground control box 25 is placed in the second box body 221. The door 2211 is opened to facilitate operation and maintenance.

[0035] A cover plate 2212 detachably connected to the second box body 221 is provided on one side of the second box body 221 away from the first box body 222. A first notch 224 extending upward is provided on the side of the first box body 222 facing the installation cavity 223. The first notch 224 is used to avoid the end of the arm 3 (such as Figure 2 The second box body 221 has a second notch 225 extending upward on one side facing the installation cavity 223. The second notch 225 is used to avoid the angle sensor 24 (as shown) installed on the main body 21. Figure 7 As shown), it is convenient for installing and removing the angle sensor 24.

[0036] like Figure 4 As shown, a first process hole 226 is provided on the side wall of the second housing 221 forming the mounting cavity 223, and a second process hole 227 is provided on the side wall of the second housing 221 forming the second notch 225. The second process hole 227 is coaxial with the second hinge hole 217. The first process hole 226 mates with the first hinge hole 216. A pouring cover 228 is provided on the upper surface of the first housing 222 for pouring concrete into the first housing 222.

[0037] like Figure 7 As shown, the arm 3 is provided with a first hinge point 31 and a second hinge point 32. During installation, one end of the arm 3 is first hoisted between the two first vertical plates 212, the first hinge point 31 is aligned with the second hinge hole 217, and the first pin 23 is installed in the first hinge point 31 and the second hinge hole 217 using the second process hole 227. The second hinge point 32 on the arm 3 is then aligned with the first hinge hole 216. The door 2211 is opened, and the second pin 26 is installed in the second hinge point 32 and the first hinge hole 216 using the first process hole 226. This completes the installation of the arm 3 and the turntable 2.

[0038] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A turntable, characterized in that: The invention comprises a body (21) and a counterweight (22), wherein the body (21) comprises a bottom plate (211), two first vertical plates (212) spaced apart on the bottom plate (211), two second vertical plates (213) arranged outside the two first vertical plates (212), and a back plate (215) connected between the two first vertical plates (212); the counterweight (22) comprises a first box (222) and a second box (221) connected to both ends of the first box (222); an installation cavity (223) is formed between the two second boxes (221); the bottom plate (211) is placed on the lower surface of the counterweight (22); the two second vertical plates (213) and one end of the two first vertical plates (212) are placed in the installation cavity (223); and the first box (222) is connected to the back plate (215).

2. The turntable according to claim 1, wherein: The second vertical plate (213) is flush with one end of the first vertical plate (212) and is connected to the flush end via a first sealing plate (214); the length of the second vertical plate (213) is shorter than the length of the first vertical plate (212), and the second vertical plate (213) is connected to the first vertical plate (212) via a second sealing plate (218).

3. The turntable according to claim 1, wherein: The second vertical plate (213) is provided with a first hinge hole (216) and a second hinge hole (217) that pass through the first vertical plate (212); a shaft sleeve (2111) is installed in the first hinge hole (216); and the second hinge hole (217) is located above the first hinge hole (216).

4. The turntable according to claim 1, wherein: A first mounting hole (219) is provided on the back plate (215), and a connecting piece (229) is provided on a side wall of the first box body (222) located in the mounting cavity (223), and the connecting piece (229) is connected to the first mounting hole (219).

5. The turntable according to claim 1, wherein: A door (2211) hingedly connected via a door hinge (2213) is provided on a side wall of the second box (221) away from the installation cavity (223); a gas spring (2214) is connected between the door (2211) and the side wall of the second box (221); and a door lock (2215) is provided on a side of the door (2211) away from the door hinge (2213).

6. The turntable according to claim 1, wherein: A cover plate (2212) detachably connected via fasteners is provided on a side wall of the second box body (221) away from the first box body (222).

7. The turntable according to claim 1, wherein: The upper surface of the first box body (222) is provided with a pouring cover (228) for pouring concrete into the first box body (222).

8. The turntable according to claim 1, wherein: A first notch (224) extending upwards is provided on a side of the first box body (222) facing the installation cavity (223), and a second notch (225) extending upwards is provided on a side of the second box body (221) facing the installation cavity (223).

9. The turntable according to claim 8, wherein: A first process hole (226) is provided on the side wall of the second box body (221) forming the installation cavity (223), and a through second process hole (227) is provided on the side wall of the second box body (221) forming the second notch (225).

10. An aerial work vehicle, comprising a chassis (1) and an arm (3), characterized in that: It also comprises a turntable according to any one of claims 1 to 9, wherein the bottom plate (211) of the turntable is mounted on the chassis (1), and the arm (3) is hinged to the body (21) of the turntable.

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