WO2013086819A1

WO2013086819A1 - Truck-mounted concrete pump

Info

Publication number: WO2013086819A1
Application number: PCT/CN2012/073842
Authority: WO
Inventors: 朱红; 陈先; 李沙
Original assignee: 湖南三一智能控制设备有限公司; 三一重工股份有限公司
Priority date: 2011-12-16
Filing date: 2012-05-28
Publication date: 2013-06-20
Also published as: CN103161312B; CN103161312A

Abstract

Disclosed is a truck-mounted concrete pump, comprising a chassis (20) and an upper structure, wherein the upper structure comprises an arm support system, and middle components provided between the chassis (20) and the arm support system. The chassis (20) and the middle components are rotationally connected, and the centre of gravity of the chassis (20) and/or the middle components is offset from the centrelines of rotation of the chassis (20) and the middle components. The truck-mounted concrete pump requires no additional weights, and adjusts the centre of gravity of the truck-mounted concrete pump by taking the chassis (20) and the middle components as the weights, thereby reducing the supporting surface area and the space occupied by supporting legs, and increasing the stability of the pump.

Description

一种混凝土泵车本申请要求于 2011 年 12 月 16 日提交中国专利局、申请号为 201110424966.4、发明名称为"一种混凝土泵车"的中国专利申请的优先权，其全部内容通过引用结合在本申请中。 The present invention claims the priority of the Chinese patent application filed on Dec. 16, 2011, the Chinese Patent Application No. 201110424966.4, entitled "A Concrete Pump Truck", the entire contents of which are incorporated by reference. In this application.

技术领域 Technical field

本发明涉及工程机械技术领域，特别涉及一种混凝土泵车。 The invention relates to the technical field of engineering machinery, in particular to a concrete pump truck.

背景技术 Background technique

混凝土泵车包括底盘和上装，上装包括固定转塔和臂架***。固定转塔固接于底盘上，固定转塔的侧面用于连接支腿，固定转塔的上方设置回转机构，臂架***设于转台上，回转机构驱动转台相对于固定转塔转动，进而带动臂架相对于底盘转动。 The concrete pump truck includes a chassis and a top, and the top includes a fixed turret and boom system. The fixed turret is fixed on the chassis, the side of the fixed turret is used to connect the legs, and the slewing mechanism is arranged above the fixed turret. The jib system is arranged on the turret, and the slewing mechanism drives the turret to rotate relative to the fixed turret, thereby driving The boom rotates relative to the chassis.

混凝土泵车作业时，主要依靠支腿支撑于地面，支腿的支撑点连线形成混凝土泵车的支撑面，车体的重心位于该支撑面内，方能保证车体处于稳定不倾翻状态。当臂架较长、回转速度较快时，泵车的重心轨迹圓半径较大（重心相较于臂架未伸出时的重心，偏移量较大），为了保证支撑面能够满足稳定支撑的需求，泵车支腿往往需要伸出较长的距离，以扩大支撑面面积，保证偏移的重心仍能够落于支撑面内。 When the concrete pump truck is working, it mainly relies on the support legs to support the ground. The support points of the support legs form the support surface of the concrete pump truck. The center of gravity of the vehicle body is located in the support surface to ensure that the vehicle body is in a stable and non-rolling state. . When the boom is long and the turning speed is fast, the center of gravity of the pump truck has a large radius (the center of gravity is larger than the center of gravity when the boom is not extended, and the offset is large), in order to ensure that the supporting surface can satisfy the stable support. The demand for the pump truck legs often needs to extend a long distance to enlarge the support surface area, so that the offset center of gravity can still fall within the support surface.

然而，泵车支腿伸出较长距离必然需占据较大的场地，在施工场地有限的情况下，泵车的支腿无法按照稳定需求伸出，则无法满足车体的稳定性需求。此外，由于稳定性在一定程度上依赖于支腿的长度，故需加工出较长的支腿，增加了车体的重量和生产的成本。 However, when the pump truck legs extend a long distance, it is necessary to occupy a large space. When the construction site is limited, the legs of the pump truck cannot extend according to the stable demand, and the stability requirement of the vehicle body cannot be met. In addition, since the stability depends to some extent on the length of the legs, it is necessary to process the longer legs, which increases the weight of the body and the cost of production.

有鉴于此，如何改善混凝土泵车的结构，使其保证稳定性的同时，减小支腿伸出的长度，是本领域技术人员需要解决的技术问题。 In view of this, how to improve the structure of the concrete pump truck to ensure the stability and reduce the length of the extension of the legs is a technical problem to be solved by those skilled in the art.

发明内容 Summary of the invention

本发明的目的为提供一种混凝土泵车，该泵车中间部件与底盘转动连接，当泵车的臂架展开时，中间部件和底盘相对转动，使得中间部件或底盘可以作为配重以调节泵车的重心，增强稳定性，减少泵车支腿伸出的长度。 The object of the present invention is to provide a concrete pump truck. The intermediate part of the pump truck is rotatably connected with the chassis. When the boom of the pump truck is deployed, the intermediate member and the chassis are relatively rotated, so that the intermediate member or the chassis can be used as a counterweight to adjust the pump. The center of gravity of the car enhances stability and reduces the length of the pump legs.

为达到本发明的目的，（见权利要求书） For the purposes of the present invention (see claims)

本发明提供的混凝土泵车，在中间部件和底盘转动连接，当底盘重心偏离转动中心线时 , 可以展开支腿后再根据臂架展开方向和长度驱动底盘相对于中间部件转动，则底盘可以作为配重使用，以抵消臂架展开造成的重心偏移；当中间部件重心偏离转动中心线时，可以不展开支腿，根据臂架展开方向和长度驱动中间部件相对于底盘转动，则中间部件可以作为配重使用，抵消重心偏移。则该方案在不增加额外配重的情况下，以泵车自身的底盘或中间部件作为配重灵活调整泵车的重心，以增加稳定性。重心调整后，泵车的重心轨迹圓半径减小，所需的支撑面面积减小，则可以有效减少泵车支腿伸出的长度，从而减少支腿占用的工地空间，使泵车能够适用于空间狭小的施工场地，或在泵车支腿长度不足的情况下，避免车体发生倾翻；且，由于泵车的支腿长度可以缩短，从而能够降低生产成本并减少整车的重量。 The concrete pump truck provided by the invention is connected in rotation between the intermediate part and the chassis, when the center of gravity of the chassis When the center line is deviated, the legs can be unfolded and then the chassis is rotated relative to the intermediate member according to the direction and length of the boom. The chassis can be used as a counterweight to offset the center of gravity offset caused by the expansion of the boom; When the center line is deviated, the legs can be unfolded, and the intermediate member is driven to rotate relative to the chassis according to the direction and length of the boom. The intermediate member can be used as a counterweight to offset the center of gravity offset. Then, the scheme can flexibly adjust the center of gravity of the pump truck with the pump chassis or intermediate parts as the counterweight without increasing the additional weight to increase the stability. After the center of gravity is adjusted, the radius of the center of gravity of the pump truck is reduced, and the required support surface area is reduced, which can effectively reduce the length of the extension of the pump leg, thereby reducing the space occupied by the legs and making the pump suitable for use. In the construction site where the space is small, or when the length of the pump leg is insufficient, the car body is prevented from tipping over; and, since the length of the leg of the pump car can be shortened, the production cost can be reduced and the weight of the whole vehicle can be reduced.

附图说明 DRAWINGS

图 1为本发明所提供混凝土泵车第一种具体实施方式的结构示意图，该图中的臂架朝向车体前方展开； 1 is a schematic structural view of a first embodiment of a concrete pump truck provided by the present invention, in which the arm frame is deployed toward the front of the vehicle body;

图 2为图 1中混凝土泵车的主要车体示意图，该图中仅示出部分臂架；图 3为图 1中混凝土泵车的臂架处于收回状态的结构示意图；图 4为本发明所提供混凝土泵车第二种具体实施方式的结构示意图，该图仅示出部分臂架； 2 is a schematic view of the main body of the concrete pump truck of FIG. 1, only a part of the boom is shown in FIG. 3; FIG. 3 is a schematic structural view of the boom of the concrete pump truck of FIG. 1 in a retracted state; A structural schematic view of a second embodiment of a concrete pump truck is provided, which only shows a partial boom;

图 5为示出图 4中整体臂架***的结构示意图； Figure 5 is a schematic view showing the structure of the integral boom system of Figure 4;

图 6为本发明所提供混凝土泵车第三种具体实施方式中底盘上设置轨道的结构示意图； 6 is a schematic structural view showing a rail disposed on a chassis in a third embodiment of the concrete pump truck provided by the present invention;

图 7为图 6中 A部位的局部放大示意图； Figure 7 is a partial enlarged view of the portion A of Figure 6;

图 8为图 7中 B部位的局部放大示意图。 Fig. 8 is a partially enlarged schematic view showing a portion B of Fig. 7.

图 9为图 7中纵向滑轨和纵向滑槽配合的横截面示意图； Figure 9 is a schematic cross-sectional view of the longitudinal rail and the longitudinal chute in Figure 7;

图 10为本发明所提供混凝土泵车第四种具体实施方式的结构示意图，该图略去第一回转机构； 10 is a schematic structural view of a fourth embodiment of a concrete pump truck provided by the present invention, which omits the first swing mechanism;

图 11为图 10固定转塔的俯视图； Figure 11 is a plan view of the fixed turret of Figure 10;

图 12为图 11中滑轨和滑槽配合的结构示意图；图 13为图 12的侧视图。 Figure 12 is a schematic view showing the structure of the slide rail and the chute in Figure 11; Figure 13 is a side view of Figure 12.

具体实施方式本发明的核心为提供一种混凝土泵车，该泵车的中间部件与底盘转动连接，当泵车的臂架展开时，中间部件和底盘相对转动，使得中间部件或底盘可以作为配重以调节泵车的重心，增强稳定性，减少泵车支腿伸出的长度。 detailed description The core of the present invention is to provide a concrete pump truck. The intermediate part of the pump truck is rotatably connected with the chassis. When the boom of the pump truck is deployed, the intermediate member and the chassis are relatively rotated, so that the intermediate member or the chassis can be adjusted as a counterweight. The center of gravity of the pump truck enhances stability and reduces the length of the pump legs.

为了使本领域的技术人员更好地理解本发明的技术方案，下面结合附图和具体实施例对本发明作进一步的详细说明。 In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

请参考图 1至图 3 , 图 1为本发明所提供混凝土泵车第一种具体实施方式的结构示意图，该图中的臂架朝向车体前方展开；图 2为图 1中混凝土泵车的主要车体示意图，该图中仅示出部分臂架；图 3为图 1中混凝土泵车的臂架处于收回状态的结构示意图。 Please refer to FIG. 1 to FIG. 3 . FIG. 1 is a schematic structural view of a first embodiment of a concrete pump truck according to the present invention. The arm frame in the figure is deployed toward the front of the vehicle body. FIG. 2 is a concrete pump truck of FIG. 1 . Schematic diagram of the main vehicle body, only a part of the boom is shown in the figure; Fig. 3 is a structural schematic view of the boom of the concrete pump truck of Fig. 1 in a retracted state.

该实施方式中的混凝土泵车，具有底盘 20和上装，上装包括臂架***、设于臂架***和底盘 20之间的中间部件。底盘一般具有主梁，主梁为主要的承重结构；该实施例中的中间部件包括固定转塔 70, 固定转塔 70的侧面安装前支腿 301和后支腿 302, 固定转塔 70的内部还可以安装其他零部件，固定转塔 70的顶部设置第二回转机构 60, 臂架***包括臂架 10和转台，转台设于第二回转机构 60上，臂架 10和转台在第二回转机构 60的作用下相对于中间部件和底盘 20转动。 The concrete pump truck of this embodiment has a chassis 20 and a top assembly, and the top assembly includes a boom system, an intermediate member disposed between the boom system and the chassis 20. The chassis generally has a main beam, the main beam being the main load bearing structure; the intermediate member in this embodiment includes a fixed turret 70, the side mounting front leg 301 and the rear leg 302 of the fixed turret 70, the interior of the fixed turret 70 Other components may be installed. The top of the fixed turret 70 is provided with a second slewing mechanism 60. The jib system includes a boom 10 and a turret. The turret is disposed on the second slewing mechanism 60. The jib 10 and the turret are in the second slewing mechanism. Under the action of 60, it rotates relative to the intermediate member and the chassis 20.

泵车的中间部件和底盘 20之间设有第一回转机构 40, 以使中间部件与底盘 20发生相对转动。如图 3所示，第一回转机构 40的回转支撑的外圏固定于底盘 20的主梁上，回转支撑的内圏支撑于外圏中，内圏和外圏在驱动部件作用下发生相对转动，内圏与中间部件固定（比如，与安装固定转塔 70等构件的付梁固定），则实现了上装和底盘 20的相对转动。安装第一回转机构 40时，使中间部件和 /或底盘 20的重心偏离第一回转机构 40 的回转中心轴线。则第一回转机构 40带动中间部件或底盘 20转动时，泵车的整体重心得以改变。 A first swivel mechanism 40 is provided between the intermediate member of the pump truck and the chassis 20 to cause relative rotation of the intermediate member with the chassis 20. As shown in FIG. 3, the outer cymbal of the slewing support of the first slewing mechanism 40 is fixed on the main beam of the chassis 20, and the inner cymbal of the slewing support is supported in the outer cymbal, and the inner cymbal and the outer cymbal are relatively rotated by the driving member. The inner cymbal is fixed to the intermediate member (for example, fixed to the beam of the member such as the fixed turret 70), and the relative rotation of the upper body and the chassis 20 is achieved. When the first swivel mechanism 40 is installed, the center of gravity of the intermediate member and/or the chassis 20 is deviated from the center of rotation of the first swivel mechanism 40. When the first slewing mechanism 40 drives the intermediate member or the chassis 20 to rotate, the overall center of gravity of the pump is changed.

当臂架 10需要展开时，可以通过下述两种模式调整泵车的重心：第一种重心调整模式：先展开支腿再转动底盘 20。首先，前支腿 301 和后支腿 302展开并支撑于地面，则中间部件相对于地面固定，车轮离地，底盘 20处于可调状态，第一回转机构 40可以驱动底盘 20相对于中间部件和地面转动，底盘 20重心偏离回转中轴线时，底盘 20的转动可以改变整车重心。如图 1和图 2所示，当臂架 10朝车体前方展开时，第一回转机构 40驱动底盘 20转动，使底盘 20的重心转至车体的后方，以平衡臂架 10 前移造成的泵车整体中心的前移，或臂架 10朝向左侧展开时，底盘 20可以转动至重心朝向右侧的方向（左右方位以未转动之前为参考），即实际上，第一回转机构 40的设置使得在不增加额外配重的情况下，泵车自身的底盘能够作为配重灵活调整泵车的重心，以增加稳定性。重心调整后，泵车的重心轨迹圓半径减小（重心的最大偏移量减小），所需的支撑面面积减小（支撑面由支腿支撑点连线形成，泵车的稳定要求重心轨迹圓落入支撑面内 ), 则可以有效减少泵车支腿伸出的长度，从而减少支腿占用的工地空间，使泵车能够适用于空间狭小的施工场地，或在泵车支腿长度不足的情况下，避免车体发生倾翻；且，由于泵车的支腿长度可以缩短，从而能够降低生产成本并减少整车的重量。 When the boom 10 needs to be unfolded, the center of gravity of the pump truck can be adjusted by the following two modes: First gravity center adjustment mode: First, the legs are unfolded and then the chassis 20 is rotated. First, the front leg 301 and the rear leg 302 are deployed and supported on the ground, the intermediate member is fixed relative to the ground, the wheel is off the ground, and the chassis 20 is in an adjustable state. The first swing mechanism 40 can drive the chassis 20 relative to the intermediate member and When the ground rotates and the center of gravity of the chassis 20 deviates from the central axis of rotation, the rotation of the chassis 20 can be changed. The center of gravity of the car. As shown in FIG. 1 and FIG. 2, when the boom 10 is deployed toward the front of the vehicle body, the first swing mechanism 40 drives the chassis 20 to rotate, so that the center of gravity of the chassis 20 is turned to the rear of the vehicle body to balance the forward movement of the boom 10. When the overall center of the pump truck is moved forward, or when the boom 10 is deployed toward the left side, the chassis 20 can be rotated to a direction in which the center of gravity is toward the right side (the left and right orientations are referred to before the non-rotation), that is, the first swing mechanism 40 is actually The setting allows the pump's own chassis to flexibly adjust the center of gravity of the pump to increase stability without adding extra weight. After the center of gravity is adjusted, the radius of the center of gravity of the pump truck is reduced (the maximum offset of the center of gravity is reduced), and the required support surface area is reduced (the support surface is formed by the support points of the support legs, and the stability of the pump is required) If the trajectory circle falls into the support surface, the length of the pumping leg can be effectively reduced, thereby reducing the space occupied by the legs, so that the pump can be applied to a construction site with a small space, or the length of the pump leg. In the case of insufficient, the body body is prevented from tipping over; and, since the length of the leg of the pump truck can be shortened, the production cost can be reduced and the weight of the entire vehicle can be reduced.

第二种重心调整模式：先转动上装再展开支腿。该种模式下，要求中间部件重心偏离于第一回转机构 40回转中心轴线。该种模式下，支腿不展开，车轮支撑于地面，底盘 20相对于地面固定，第一回转机构 40带动中间部件相对于底盘 20和地面转动，则中间部件作为配重，与上述底盘 20 作为配重的工作原理相同，可以 ^据臂架 10的动作方向转动中间部件，以调整泵车重心，增加稳定性，并可以减小泵车支腿的伸出长度。 The second center of gravity adjustment mode: first turn the top and then expand the legs. In this mode, the center of gravity of the intermediate member is required to deviate from the center axis of rotation of the first slewing mechanism 40. In this mode, the legs are not deployed, the wheels are supported on the ground, the chassis 20 is fixed relative to the ground, the first turning mechanism 40 drives the intermediate member to rotate relative to the chassis 20 and the ground, and the intermediate member acts as a counterweight, with the chassis 20 as The counterweight works in the same way, and the intermediate member can be rotated according to the direction of movement of the boom 10 to adjust the center of gravity of the pump truck, increase stability, and reduce the extension length of the pump truck legs.

上述实施例中，中间部件和底盘 20通过第一回转机构 40连接，实现二者的相对转动，也可以采用其他常用的转动连接方式连接。 In the above embodiment, the intermediate member and the chassis 20 are connected by the first slewing mechanism 40 to achieve relative rotation of the two, and may also be connected by other common rotational connection means.

在另一实施例中，中间部件包括泵送*** 50。泵送*** 50—般包括混凝土料斗、 S 阀、混凝土缸、液压缸等部件，具备一定的重量。将泵送 *** 50作为中间部件的一部分，比如，将泵车的付梁安装于第一回转机构 40上，固定转塔 70以及泵送*** 50均安装于付梁上，则泵送*** 50成为中间部件的一部分，整体中间部件重量增加，则中间部件作为配重使用时，调整车体重心的作用更为明显，能够有效减小臂架 10展开而引起的泵车重心偏移。 In another embodiment, the intermediate component includes a pumping system 50. The pumping system 50 generally includes concrete hoppers, S valves, concrete cylinders, hydraulic cylinders, etc., and has a certain weight. The pumping system 50 is used as part of the intermediate component, for example, the beam of the pump truck is mounted on the first swing mechanism 40, the fixed turret 70 and the pumping system 50 are all mounted on the pay beam, and the pumping system 50 becomes When a part of the intermediate member is used, the weight of the entire intermediate member is increased, and when the intermediate member is used as a weight, the effect of adjusting the center of gravity of the vehicle is more remarkable, and the shift of the center of gravity of the pump caused by the deployment of the boom 10 can be effectively reduced.

上述实施例中混凝土泵车的支腿设于固定转塔 70上，作为中间部件的一部分，实际上，支腿也可以直接设置于底盘 20处，请参考图 4和图 5 , 图 4为本发明所提供混凝土泵车第二种具体实施方式的结构示意图，该图仅示出部分臂架；图 5为示出图 4中整体臂架***的结构示意图。 In the above embodiment, the legs of the concrete pump truck are disposed on the fixed turret 70 as part of the intermediate member. In fact, the legs may also be directly disposed on the chassis 20, please refer to FIG. 4 and FIG. 5, FIG. A schematic structural view of a second embodiment of a concrete pump truck provided by the invention, the figure Only a part of the boom is shown; Fig. 5 is a schematic view showing the structure of the integral boom system of Fig. 4.

如图 4所示，前支腿 301和后支腿 302可以直接连接于底盘 20的主梁。则泵车的支腿成为底盘 20的一部分，不随中间部件转动，该种结构适用于上述实施例中的第二种重心调整模式，即中间部件作为配重以调整泵车的重心。支腿直接连接于底盘 20,则中间部件转动时不易与车体其他部位（比如驾驶室）发生干涉，重心的调整更为灵活。支腿采取该种布置方式时，泵车的底盘 20上还可以不设置固定转塔 70, 第二回转机构 60、泵送*** 50等其他中间部件（图中省略其他中间部件）均可以直接安装于付梁上，付梁和第一回转机构 40的内圏固定。 As shown in Figure 4, the front leg 301 and the rear leg 302 can be directly coupled to the main beam of the chassis 20. Then, the leg of the pump truck becomes a part of the chassis 20 and does not rotate with the intermediate member. This structure is suitable for the second center of gravity adjustment mode in the above embodiment, that is, the intermediate member serves as a counterweight to adjust the center of gravity of the pump truck. When the legs are directly connected to the chassis 20, the intermediate members are less likely to interfere with other parts of the vehicle body (such as the cab) when rotating, and the adjustment of the center of gravity is more flexible. When the leg adopts such an arrangement, the fixed turret 70 may not be disposed on the chassis 20 of the pump truck, and other intermediate components such as the second slewing mechanism 60, the pumping system 50, and other intermediate components are omitted. On the beam, the inner beam of the beam and the first slewing mechanism 40 is fixed.

请参考图 6至图 8, 图 6为本发明所提供混凝土泵车第三种具体实施方式中底盘上设置轨道的结构示意图；图 7为图 6中 A部位的局部放大示意图；图 8为图 7中 B部位的局部放大示意图。 Please refer to FIG. 6 to FIG. 8. FIG. 6 is a schematic structural view showing a structure of a track on a chassis in a third embodiment of the concrete pump truck provided by the present invention; FIG. 7 is a partially enlarged view of the portion A in FIG. A partial enlarged view of the B portion in 7.

在该实施例中，泵车还设有第一驱动装置，底盘 20设有第一轨道，第一驱动装置驱动第一回转机构 40沿第一轨道运行。第一轨道可以为沿底盘 20的主梁长度方向延伸的纵向滑轨 201 ,如图 6和图 7所示，底盘 20的两根主梁上均设有纵向滑轨 201 , 第一回转机构 40的底部对应地设有两卡住纵向滑轨 201的纵向滑槽 401 , 纵向滑槽 401沿纵向滑轨 201滑动时，带动上装以及臂架 10前后移动。纵向滑轨 201和纵向滑槽 401的具体配合结构可以参考图 9, 图 9为图 7中纵向滑轨和纵向滑槽配合的横截面示意图，纵向滑槽 401的槽壁内扣，纵向滑轨 201的横截面大致呈 T形，则纵向滑槽 401卡住纵向滑轨 201后，二者仅可以相对滑行，无法沿横向或竖直方向移动，则第一回转机构 40及其上方的上装不会与底盘 20脱离，稳定性更高。该种结构更适用于底盘 20作为配重的工作模式，支腿展开后，上装相对于地面固定，车轮离地，第一驱动装置驱动纵向滑轨 201和纵向滑槽 401相对滑动，则底盘 20则相对于上装沿轨道运行。比如，当臂架 10朝泵车后方展开时，第一驱动装置可以驱动底盘 20沿轨道朝前方滑行，以抵消臂架 10后伸导致的重心后移；臂架 10朝前方展开时，底盘 20向后方运行；当臂架 10朝斜前方或斜后方伸出时，底盘 20同样可以向后方或前方伸出，依然可以在一定程度上起到调整重心的作用。当然，该种结构也可以适用于上装作为配重的模式，即前支腿 301和后支腿 302并不展开，支腿均随上装前后移动，由于臂架 10会随上装移动，故臂架 10伸长的长度需要作相应的改动，比如，臂架 10朝后方展开时，驱动上装和臂架 10向前方移动，臂架 10伸出的长度需变长方能达到预定位置，此时，也可以达到降低车体重心前移量的效果，但对臂架 10的伸缩量具有一定的限制（臂架 10的最远作业距离降低），其调节灵活性次于底盘 20作为配重的模式。 In this embodiment, the pump truck is further provided with a first drive device, the chassis 20 is provided with a first track, and the first drive device drives the first swing mechanism 40 to operate along the first track. The first rail may be a longitudinal rail 201 extending along the length of the main beam of the chassis 20. As shown in FIG. 6 and FIG. 7, the two main beams of the chassis 20 are provided with a longitudinal rail 201, the bottom of the first swing mechanism 40. Correspondingly, two longitudinal sliding slots 401 are formed to catch the longitudinal sliding rails 201. When the longitudinal sliding slots 401 slide along the longitudinal sliding rails 201, the upper loading and the boom 10 are moved forward and backward. For the specific cooperation structure of the longitudinal rail 201 and the longitudinal sliding slot 401, reference may be made to FIG. 9. FIG. 9 is a cross-sectional view showing the cooperation of the longitudinal sliding rail and the longitudinal sliding slot of FIG. 7, the slot wall of the longitudinal sliding slot 401 is buckled, and the longitudinal sliding rail is The cross section of the 201 is substantially T-shaped, and after the longitudinal sliding groove 401 is caught by the longitudinal sliding rail 201, the two can only slide relative to each other and cannot move in the lateral or vertical direction, and the first rotating mechanism 40 and the upper loading thereof are not It will be separated from the chassis 20 and has higher stability. The structure is more suitable for the working mode of the chassis 20 as a counterweight. After the legs are deployed, the upper body is fixed relative to the ground, the wheel is off the ground, and the first driving device drives the longitudinal sliding rail 201 and the longitudinal sliding slot 401 to slide relative to each other. Then it runs along the track relative to the top. For example, when the boom 10 is deployed toward the rear of the pump truck, the first driving device can drive the chassis 20 to slide forward along the track to offset the rearward shift of the center of gravity caused by the extension of the boom 10; when the boom 10 is deployed forward, the chassis 20 Running backwards; When the boom 10 projects obliquely forward or obliquely rearward, the chassis 20 can also protrude rearward or forward, and can still adjust the center of gravity to a certain extent. Of course, the structure can also be applied to the top loading as a counterweight, that is, the front leg 301 and the rear leg 302 are not deployed, The legs are moved back and forth with the top loading. Since the boom 10 moves with the top loading, the length of the boom 10 needs to be modified accordingly. For example, when the boom 10 is deployed rearward, the driving top and the boom 10 are moved forward. The length of the boom 10 needs to be extended to reach a predetermined position. At this time, the effect of reducing the amount of forward weight of the vehicle can also be achieved, but the amount of expansion and contraction of the boom 10 is limited (the most of the boom 10) The far working distance is reduced), and the adjustment flexibility is second to the mode in which the chassis 20 functions as a counterweight.

另外，第一回转机构 40的底部和纵向滑槽 401之间还可以设置横向滑轨 402和横向滑槽 403。请继续参考图 7 ,纵向滑槽 401之上还可以固定横向滑轨 402, 第一回转机构 40的底部固定有横向滑槽 403 (为清楚表现结构，该图并未示出与横向滑槽 403连接的第一回转机构 40 ),横向滑槽 403 卡住横向滑轨 402并可以沿横向滑轨 402移动，横向滑槽 403与横向滑轨 402配合的方式可以与纵向滑轨 201、纵向滑槽 401的配合方式相同。第一驱动装置可以包括第一驱动部件和第二驱动部件，第一驱动部件驱动纵向滑槽 401沿纵向滑轨 201滑动，第二驱动部件驱动横向滑槽 403沿横向滑轨 402滑动。如图 6所示，该种轨道设计方式使得底盘 20和上装不但可以相对前后移动，还可以左右移动，对泵车重心的调整更为灵活。 In addition, a lateral rail 402 and a transverse chute 403 may be disposed between the bottom of the first slewing mechanism 40 and the longitudinal chute 401. Referring to FIG. 7 , the horizontal sliding rail 402 can also be fixed on the longitudinal sliding slot 401. The bottom of the first rotating mechanism 40 is fixed with a lateral sliding slot 403 (for a clear representation structure, the figure is not shown with the lateral sliding slot 403 The first slewing mechanism 40), the lateral sliding groove 403 catches the horizontal sliding rail 402 and can move along the horizontal sliding rail 402. The transverse sliding groove 403 can cooperate with the horizontal sliding rail 402 in a manner similar to the longitudinal sliding rail 201 and the longitudinal sliding slot. The 401 works in the same way. The first drive means may include a first drive member that drives the longitudinal chute 401 to slide along the longitudinal slide 201 and a second drive member that drives the transverse chute 403 to slide along the transverse slide 402. As shown in Fig. 6, the track design method allows the chassis 20 and the upper loading to move not only back and forth, but also to move left and right, and the adjustment of the center of gravity of the pump is more flexible.

第一驱动部件和第二驱动部件可以分别为第一伸缩油缸 202和第二伸缩油缸 404。请继续参见图 7, 与两纵向滑轨 201 配合的两纵向滑槽 401 之间设有横置梁，两纵向滑轨 201之间也是有横置的连接梁，第一伸缩油缸 202的一端连接横置梁，另一端连接连接梁，则第一伸缩油缸 202的伸缩驱动纵向滑槽 401和纵向滑轨 201相对地向前或向后滑动。类似地，也可以设置相平行的横向滑槽 403 , 横向滑槽 403之间设有纵置梁，第二伸缩油缸 404的一端连接纵置梁，另一端连接一纵向滑槽 401 , 则第二伸缩油缸 404的伸缩可以驱动横向滑槽 403和横向滑轨 402相对地向左或向右滑动。使用滑槽和滑轨配合的方式，在实现底盘 20和上装相对运动的同时，可以防止上装脱离底盘 20, 保证支撑连接的稳定性。 The first drive member and the second drive member may be a first telescopic cylinder 202 and a second extension cylinder 404, respectively. Referring to FIG. 7 , a transverse beam is disposed between the two longitudinal sliding slots 401 that cooperate with the two longitudinal sliding rails 201 . The two longitudinal sliding rails 201 also have a transverse connecting beam. One end of the first telescopic cylinder 202 is connected. The transverse beam is connected to the connecting beam at the other end, and the telescopic driving longitudinal sliding groove 401 of the first telescopic cylinder 202 and the longitudinal sliding rail 201 are relatively slid forward or backward. Similarly, a parallel horizontal sliding groove 403 may be disposed, and a longitudinal beam is disposed between the horizontal sliding grooves 403. One end of the second telescopic cylinder 404 is connected to the longitudinal beam, and the other end is connected to a longitudinal sliding groove 401, and then the second The expansion and contraction of the telescopic cylinder 404 can drive the lateral chute 403 and the lateral rail 402 to slide relatively to the left or to the right. By using the cooperation of the chute and the slide rail, the relative movement of the chassis 20 and the upper loading can be realized, and the upper loading can be prevented from coming off the chassis 20, and the stability of the support connection is ensured.

为了进一步保证第一回转机构 40与底盘 20的连接稳定性，底盘 20 还可以设置第一锁定装置 203 , 第一锁定装置 203将第一回转机构 40锁定于底盘 20的预定位置处。预定位置即按照臂架 10展开方向和长度，按照重心调整需求需要第一回转机构 40停留的位置，操作人员可以按照当前工况确定该位置，或通过控制器设定的程序计算确定该位置。第一锁定装置 203可以是销轴，滑槽和滑轨上可以沿滑行方向设置若干间隔排列的销孔，当第一回转机构 40滑行至预定位置后，将销轴***滑槽与滑轨叠合的销孔中，即可固定滑槽和滑轨（该种锁定方式要求预定位置处，滑槽和滑轨的某一销孔可以重合），防止驱动部件失灵时，滑槽与滑轨发生相对滑动，影响重心调节。 In order to further ensure the connection stability of the first slewing mechanism 40 and the chassis 20, the chassis 20 may also be provided with a first locking device 203 that locks the first slewing mechanism 40 at a predetermined position of the chassis 20. The predetermined position is the position and length of the boom 10, and the position of the first swing mechanism 40 is required to adjust the demand according to the center of gravity. The operator can determine the position according to the current working condition, or determine the position by a program set by the controller. First locking device The 203 may be a pin shaft, and the pin grooves and the slide rails may be arranged with a plurality of spaced pin holes arranged in the sliding direction. When the first swing mechanism 40 is slid to a predetermined position, the pin shaft is inserted into the pin hole of the sliding groove and the slide rail. In the middle, the chute and the slide rail can be fixed (the locking method requires a predetermined position, and a certain pin hole of the chute and the slide rail can be overlapped), and when the driving component fails, the sliding groove and the sliding rail are relatively slipped, and the influence is affected. Center of gravity adjustment.

请继续参考图 8, 该图示出第一锁定装置的一种结构示意图。纵向滑槽 401沿滑行方向设置了若干缺口 4011 , 底盘 20的主梁上设置了第一锁定装置 203 , 第一锁定装置 203 包括与主梁固定的螺纹套，螺栓插于螺纹套内，转动螺栓，螺栓可以向上方伸长以***缺口 4011 处，则纵向滑槽 401和纵向滑槽 401被锁定；转动螺栓向下以脱离缺口 4011处，则纵向滑槽 401和纵向滑轨 201得以解锁，可以相对滑动。该种结构的第一锁定装置 203易于操作，锁定可靠。 Please continue to refer to FIG. 8, which shows a structural diagram of the first locking device. The longitudinal chute 401 is provided with a plurality of notches 4011 along the sliding direction. The main beam of the chassis 20 is provided with a first locking device 203. The first locking device 203 includes a threaded sleeve fixed to the main beam. The bolt is inserted into the threaded sleeve, and the bolt is rotated. The bolt can be extended upward to be inserted into the notch 4011, and the longitudinal sliding slot 401 and the longitudinal sliding slot 401 are locked; when the rotating bolt is downward to be separated from the notch 4011, the longitudinal sliding slot 401 and the longitudinal sliding rail 201 can be unlocked. Relative sliding. The first locking device 203 of this configuration is easy to operate and reliable in locking.

上述实施例中，第一轨道为纵向滑轨 201 , 纵向滑槽 401之上设有横向滑轨 402, 即第一回转机构 40仅可以前后或左右移动。实际上，第一轨道的延伸方向并不限于此，也可以倾斜（相对于纵向和横向而言）设于底盘 20处，同样可以达到调整重心的目的，当然，设置沿主梁延伸的纵向滑轨 201 , 使得上装和臂架 10的重量仍主要落于主梁上，可以保持车体的承重性能。此外，上述第一回转机构 40和底盘 20分别设置滑槽和滑轨，也可以于第一回转机构 40上设置滑轨，底盘 20上设置滑槽；也可以采取其他常用的轨道设置方式，当然，鉴于稳定性需求，滑槽和滑轨为优选的轨道结构。另，第一驱动部件和第二驱动部件均为伸缩油缸，伸缩油缸具有较大的驱动力，适合驱动第一回转机构 40及上装、臂架 10滑动，当然也可以采用其他常用的驱动部件，比如气缸、链轮等。 In the above embodiment, the first track is a longitudinal slide 201, and the longitudinal slide 401 is provided with a transverse slide 402, that is, the first swing mechanism 40 can only move forward or backward or left and right. Actually, the extending direction of the first track is not limited thereto, and may be inclined (relative to the longitudinal direction and the lateral direction) at the chassis 20, and the purpose of adjusting the center of gravity may also be achieved. Of course, the longitudinal sliding along the main beam is set. The rail 201 makes the weight of the upper body and the arm frame 10 mainly fall on the main beam, and can maintain the load-bearing performance of the vehicle body. In addition, the first swing mechanism 40 and the chassis 20 are respectively provided with a sliding slot and a slide rail, and a slide rail may be disposed on the first swing mechanism 40, and a sliding slot is disposed on the chassis 20; other commonly used track setting manners may also be adopted. Chutes and slides are preferred track structures due to stability requirements. In addition, the first driving component and the second driving component are both telescopic cylinders, and the telescopic cylinder has a large driving force, and is suitable for driving the first rotating mechanism 40 and the upper loading and the arm frame 10 to slide. Of course, other common driving components may also be used. Such as cylinders, sprocket wheels, etc.

请参考图 10至图 13 , 图 10为本发明所提供混凝土泵车第四种具体实施方式的结构示意图，该图略去第一回转机构；图 11为图 10固定转塔的俯视图；图 12为图 11中滑轨和滑槽配合的结构示意图；图 13为图 12的侧视图。 Referring to FIG. 10 to FIG. 13 , FIG. 10 is a schematic structural view of a fourth embodiment of a concrete pump truck according to the present invention, which omits the first swing mechanism; FIG. 11 is a top view of the fixed turret of FIG. 10; FIG. 13 is a side view of the structure of FIG.

该具体实施方式中，泵车还具有第二驱动装置，第二回转机构 60固定于混凝土泵车的固定转塔 70上，固定转塔 70上设有第二轨道，第二驱动装置驱动第二回转机构 60沿第二轨道运行。与第一轨道设置方式类似，第二轨道可以是设于固定转塔 70上的滑轨 701 , 第二回转机构 60具有卡住滑轨 701的滑槽 601 , 第二驱动装置驱动滑槽 601沿滑轨 701滑动。可以在固定转塔 70上设置平行设置的滑轨 701 , 第二回转机构 60的底部具有对应的平行设置的滑槽 601 , 滑槽 601之间设有横梁 6011 , 第二驱动装置也为伸缩油缸 602, 伸缩油缸 602的一端连接于横梁 6011 , 另一端与设于固定转塔 70上的横向连接梁 702连接，则伸缩油缸 602的伸缩可以带动臂架 10沿固定转塔 70的滑轨 701移动。如图 10所示，臂架 10需要朝前展开时，伸缩油缸 602驱动第二回转机构 60和臂架 10朝前运行；臂架 10 需要朝后展开时，伸缩油缸 602驱动第二回转机构 60和臂架 10朝后运行。第二回转机构 60和臂架 10沿轨道运行的距离使得臂架 10的长度和变幅调节更为灵活，且可以扩大臂架 10的作业范围。 In this embodiment, the pump truck further has a second driving device. The second swing mechanism 60 is fixed to the fixed turret 70 of the concrete pump truck. The fixed turret 70 is provided with a second rail, and the second driving device drives the second. The slewing mechanism 60 operates along the second track. Similar to the first track setting method, The second rail may be a slide rail 701 provided on the fixed turret 70. The second swing mechanism 60 has a sliding slot 601 for catching the slide rail 701, and the second driving device drives the sliding slot 601 to slide along the slide rail 701. A slide rail 701 disposed in parallel may be disposed on the fixed turret 70. The bottom of the second swing mechanism 60 has corresponding parallel sliding grooves 601. A cross beam 6011 is disposed between the sliding slots 601, and the second driving device is also a telescopic cylinder. 602, one end of the telescopic cylinder 602 is connected to the beam 6011, and the other end is connected to the transverse connecting beam 702 disposed on the fixed turret 70. The expansion and contraction of the telescopic cylinder 602 can drive the boom 10 to move along the sliding rail 701 of the fixed turret 70. . As shown in FIG. 10, when the boom 10 needs to be deployed forward, the telescopic cylinder 602 drives the second swing mechanism 60 and the boom 10 to run forward; when the boom 10 needs to be deployed rearward, the telescopic cylinder 602 drives the second swing mechanism 60. And the boom 10 runs backwards. The distance traveled by the second swivel mechanism 60 and the boom 10 along the track allows the length and width adjustment of the boom 10 to be more flexible, and the working range of the boom 10 can be expanded.

固定转塔 70上可以设置第二锁定装置，第二锁定装置可以将第二回转机构 60锁定于固定转塔 70的预定位置处，与第一锁定装置 203的原理类似，结构可以与第一锁定装置 203相同，在此不赘述。第三和第四实施例中，泵车均设置了驱动装置驱动滑槽相对于滑轨运行，实际上，驱动装置外置于泵车也可以，比如，第一回转机构 40与底盘 20采用锁定装置锁定，需要调整底盘 20和第一回转机构 40位置时，解锁使得底盘 20和第一回转机构 40处于可调状态，通过外置的驱动装置驱动二者相对运行。 A second locking device can be disposed on the fixed turret 70. The second locking device can lock the second slewing mechanism 60 at a predetermined position of the fixed turret 70. Similar to the principle of the first locking device 203, the structure can be locked with the first locking. The device 203 is the same and will not be described here. In the third and fourth embodiments, the pump truck is provided with a driving device to drive the chute to operate relative to the slide rail. In fact, the driving device may be externally mounted on the pump truck. For example, the first swing mechanism 40 and the chassis 20 are locked. When the device is locked and the position of the chassis 20 and the first swing mechanism 40 needs to be adjusted, the unlocking causes the chassis 20 and the first swing mechanism 40 to be in an adjustable state, and the relative driving is driven by an external driving device.

以上对本发明所提供的一种混凝土泵车进行了详细介绍。本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。 The concrete pump truck provided by the present invention has been described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, and the description of the above embodiments is only to assist in understanding the method of the present invention and its core idea. It should be noted that those skilled in the art can make various modifications and changes to the present invention without departing from the spirit and scope of the invention.

Claims

权利要求 Rights request

1、一种混凝土泵车，包括底盘和上装，所述上装包括臂架***、设于所述底盘和所述臂架***之间的中间部件，其特征在于，所述底盘和所述中间部件转动连接，且所述底盘和 /或所述中间部件的重心偏离所述底盘和所述中间部件的转动中心线。 What is claimed is: 1. A concrete pump truck comprising a chassis and a top garment, the top garment comprising a boom system, an intermediate member disposed between the chassis and the boom system, wherein the chassis and the intermediate member The connection is rotated and the center of gravity of the chassis and/or the intermediate member is offset from the centerline of rotation of the chassis and the intermediate member.

2、根据权利要求 1所述的混凝土泵车，其特征在于，所述底盘和所述中间部件之间设有第一回转机构，以驱动所述底盘和所述中间部件转动。 The concrete pump truck according to claim 1, wherein a first swinging mechanism is provided between the chassis and the intermediate member to drive the chassis and the intermediate member to rotate.

3、根据权利要求 2所述的混凝土泵车，其特征在于，所述中间部件包括混凝土泵车的泵送***。 3. A concrete pump truck according to claim 2, wherein said intermediate member comprises a pumping system for a concrete pump truck.

4、根据权利要求 2所述的混凝土泵车，其特征在于，所述混凝土泵车的支腿固定于所述底盘。 The concrete pump truck according to claim 2, wherein the leg of the concrete pump truck is fixed to the chassis.

5、根据权利要求 1至 3任一项所述的混凝土泵车，其特征在于，所述底盘和所述第一回转机构二者之一设有第一轨道，另一者能够沿所述第一轨道运行。 The concrete pump truck according to any one of claims 1 to 3, wherein one of the chassis and the first swinging mechanism is provided with a first rail, and the other can be along the first A track runs.

6、根据权利要求 5所述的混凝土泵车，其特征在于，所述底盘设有沿其主梁长度方向延伸的纵向滑轨；所述第一回转机构的底部设有卡于所述纵向滑轨的纵向滑槽；所述纵向滑槽之上固定有横向滑轨，所述第一回转机构的底部固定有横向滑槽；还包括驱动驱动所述纵向滑槽沿所述纵向滑轨滑动的第一驱动部件，和驱动所述横向滑槽沿所述横向滑轨滑动的第二驱动部件。 The concrete pump truck according to claim 5, wherein the chassis is provided with a longitudinal sliding rail extending along a longitudinal direction of the main beam; the bottom of the first rotating mechanism is provided with a card for the longitudinal sliding a longitudinal sliding groove of the rail; a transverse sliding rail is fixed on the longitudinal sliding slot; a bottom sliding slot is fixed to a bottom of the first rotating mechanism; and further comprising driving and driving the longitudinal sliding slot to slide along the longitudinal sliding rail a first driving member, and a second driving member that drives the lateral sliding groove to slide along the lateral sliding rail.

7、根据权利要求 6所述的混凝土泵车，其特征在于，所述第一驱动部件和所述第二驱动部件分别为第一伸缩油缸和第二伸缩油缸；两所述主梁上均设有所述纵向滑轨，两所述纵向滑轨之间设有横向连接梁，与两所述纵向滑轨配合的两所述纵向滑槽之间设有横置梁，所述第一伸缩油缸的一端连接所述横置梁，另一端连接所述连接梁；具有平行设置的所述横向滑槽，所述横向滑槽之间具有纵置梁，所述第二伸缩油缸的一端连接所述纵置梁，另一端连接一所述纵向滑槽。 The concrete pump truck according to claim 6, wherein the first driving member and the second driving member are a first telescopic cylinder and a second telescopic cylinder, respectively; a longitudinal rail, a transverse connecting beam is disposed between the two longitudinal sliding rails, and a transverse beam is disposed between the two longitudinal sliding slots that cooperate with the two longitudinal sliding rails, and one end of the first telescopic cylinder Connecting the transverse beam, the other end is connected to the connecting beam; the transverse sliding groove is arranged in parallel, the longitudinal sliding groove has a longitudinal beam, and one end of the second telescopic cylinder is connected to the vertical The beam is connected to the longitudinal slot at the other end.

8、根据权利要求 7所述的混凝土泵车，其特征在于，所述底盘还设有第一锁定装置，所述第一锁定装置将所述第一回转机构锁定于所述底盘的预定位置。 8. A concrete pump truck according to claim 7, wherein said chassis is further provided with a first locking means, said first locking means locking said first slewing mechanism to a predetermined position of said chassis.

9、根据权利要求 5所述的混凝土泵车，其特征在于，所述中间部件包括固定转塔，所述固定转塔上设有驱动臂架***转动的第二回转机构，，所述固定转塔和所述第一回转机构二者之一设有第二轨道，另一者沿所述第二轨道运行。 The concrete pump truck according to claim 5, wherein the intermediate member comprises a fixed turret, and the fixed turret is provided with a second slewing mechanism that drives the rotation of the boom system, and the fixed rotator One of the tower and the first slewing mechanism is provided with a second track, the other running along the second track.

10、根据权利要求 9所述的混凝土泵车，其特征在于，所述第二轨道为设于所述固定转塔上的滑轨，所述第一回转机构具有卡于所述滑轨的滑槽，还包括驱动所述滑槽沿所述滑轨滑动的驱动装置；且所述固定转塔设有第二锁定装置，所述第二锁定装置将所述回转机构锁定于所述固定转塔的预定位置。 The concrete pump truck according to claim 9, wherein the second rail is a slide rail provided on the fixed turret, and the first swing mechanism has a slippage stuck to the slide rail a slot, further comprising a driving device for driving the sliding slot to slide along the sliding rail; and the fixed turret is provided with a second locking device, the second locking device locking the rotating mechanism to the fixed turret The intended location.