WO2012071874A1

WO2012071874A1 - Connecting device for articulated elbow and concrete pump using the same

Info

Publication number: WO2012071874A1
Application number: PCT/CN2011/075537
Authority: WO
Inventors: 董旭辉; 李继波; 黄立
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: 2010-12-01
Filing date: 2011-06-09
Publication date: 2012-06-07
Also published as: CN201953074U

Abstract

An adjustable connecting device for an articulated elbow and a concrete pump using the same are provided. The adjustable connecting device for an articulated elbow, connecting an articulated elbow (1) and a hopper, includes an adjusting seat (2) positioned at a side of the articulated elbow (1). The adjusting seat (2) has an articulated part and a connecting plate (21) which are connected with each other. The articulated part is used for articulating with the articulated elbow (1), and the connecting plate (21) is provided with mounting holes (211,212) for connecting the hopper positioned outside of the articulated part. The concrete pump using the connecting device for an articulated elbow has a compact structure and a high reliability.

Description

Hinge elbow connecting device and concrete pumping device using same

This application claims priority to Chinese Patent Application No. 201020637186.9, entitled "Hinged Bend Pipe Connection Device and Concrete Pumping Equipment", filed on December 1, 2010, the entire contents of which are hereby incorporated by reference. Combined in this application. Technical field

The invention relates to the technical field of concrete pumping equipment, in particular to a hinge elbow connecting device for connecting a hinge elbow and a hopper. The invention further relates to a concrete pumping apparatus having the above-described hinge elbow connecting device.

Background technique

Concrete pumping equipment such as concrete pump, pump truck, truck pump, wet spray machine, etc. In the process of pumping concrete, as shown in Fig. 1, concrete is transported from the hopper 2 with one distribution valve 2Γ to the conveying pipe 3, Inside, the hopper 2 is connected to the conveying pipe 3, usually through a hinged pipe ,, and the hinge pipe Γ is used to connect the discharge port of the hopper 2 and the conveying pipe 3.

In the prior art, the installation method of the hinge elbow includes two types: a fixed installation and an adjustable installation. The fixed installation method of the hinge elbow is usually to align the inlet of the hinge elbow with the discharge port of the hopper and fix the connection therebetween. This installation method cannot adjust the gap between the hinge elbow and the hopper, and needs The rubber gasket is installed at the joint surface of the hinge elbow and the hopper to compensate for the gap. Under the scouring action of the concrete, the rubber gasket is easily worn, so that the reliability of the concrete pumping equipment is low.

The adjustable installation of the hinge elbow is shown in Figure 2. The hinged elbow is provided with a hinged joint 4 on one side. The first end of the hinged connecting member 4 is provided with a hinge hole, and the second end is a bolt structure. The first end of the hinge connecting member 4 is hinged with the hinge bent pipe, and the second end is connected with the hopper 2 to form a bolt connection. By adjusting the position of the nut, the gap between the hinge bend and the hopper 2 can be achieved.

The hinge elbow connection method of the structure has a suitable adjustable range for the gap between the hinge elbow and the hopper, and the hinge elbow is installed in a large size, and the inlet of the hinge elbow cannot be directly connected with the hopper. When the material is fitted, it is necessary to provide a discharge connecting pipe between the two for transition, thereby increasing the structural space of the concrete pumping device; under the scouring action of the concrete, the discharging connecting pipe is easy to wear, and the vulnerable parts are added. , reducing the reliability of concrete pumping equipment; At the same time, due to the increase in parts, the manufacturing precision of each component is required to be high.

Therefore, how to develop a hinge elbow connecting device which can make the structure of the concrete pumping device more compact, less vulnerable parts and high reliability is a technical problem to be solved by those skilled in the art.

Summary of the invention

A first object of the present invention is to provide a hinge elbow connecting device that can adjustably connect a hinge elbow to a hopper gap, and that can make the concrete pumping device structure more compact and easy Less damage components and higher reliability. A second object of the present invention is to provide a concrete pumping apparatus having the above-described hinge elbow connecting device.

In order to achieve the above first object, the present invention provides a hinge elbow connecting device for connecting a hinge elbow and a hopper, comprising an adjusting seat provided on one side of the hinge elbow, the adjusting seat having an interconnection a hinge portion and a connecting plate, the hinge portion being hinged to the hinge elbow, the connecting plate being provided with a mounting hole for forming a connection with the hopper, the mounting hole being located outside the hinge portion.

Preferably, the hinge portion includes a first hinge plate and a second hinge plate disposed in parallel above and below, and the first hinge plate and the second hinge plate are respectively provided with aligned first hinge holes and second hinge holes.

Preferably, the mounting hole is bolted to the hopper by an adjusting screw.

Preferably, one end of the adjusting screw is fixed to the hopper by a lock nut.

Preferably, one end of the adjusting screw is fixed to the hopper by welding.

Preferably, the method further includes a wedge mechanism disposed on the other side of the hinge elbow, the wedge mechanism including a connecting shaft and a wedge pin; one end of the connecting shaft is fixed to the hopper, and the other end is fixed to the hinge bend The fixing plate of the tube is sleeved, and the socket end of the connecting shaft is provided with a socket, and the wedge pin is inserted into the socket.

Preferably, the fixing plate is provided with a waist hole, and the connecting shaft is sleeved in the waist hole. The hinge elbow connecting device provided by the present invention comprises an adjusting seat disposed on one side of the hinge elbow, the hinge portion of the adjusting seat is hinged to the side of the hinge elbow, and the connecting plate of the adjusting seat is provided with the hopper. a mounting hole located outside the hinge portion, that is, a connecting member for connecting the connecting plate and the hopper is located outside the hinge portion, and the connecting member can adjust the hinge The gap between the elbow and the hopper.

The hinge elbow connecting device of the structure is used for connecting the hinge portion of the hinge elbow and the bolt connecting member for connecting the hopper, that is, the hinge portion and the bolt connecting portion have less space in the axial direction of the hinged elbow The feeding port of the hinge elbow can be directly matched with the discharge port of the hopper, and there is no need to provide a discharge connecting pipe between the two to make a transition, thereby ensuring a suitable adjustable range between the hinge elbow and the hopper. The gap will not increase the installation size of the hinge elbow, and thus will not increase the structural space of the concrete pumping equipment; it will also reduce the vulnerable parts such as the rubber gasket or the discharge connecting pipe, and improve the reliability of the concrete pumping equipment. Due to the reduction of parts, the manufacturing precision requirements for each component can be reduced.

A second object of the present invention is to provide a concrete pumping apparatus in which the hinge bends and hoppers of the concrete pumping apparatus are connected by the above-described adjustable hinge elbow connecting means. Since the above-mentioned adjustable hinge elbow connecting device has the above technical effects, the concrete pumping device having the adjustable hinge elbow connecting device should also have corresponding technical effects.

DRAWINGS

Figure 1 is a schematic view showing the structure of the connection of the hopper and the conveying pipe of the concrete pumping device;

2 is a schematic structural view of an adjustable installation method of a hinged bent pipe in the prior art;

3 is a schematic structural view of an adjustable hinge elbow connecting device provided by the present invention; FIG. 4 is a schematic front view showing the adjusting seat of FIG.

Figure 5 is a side view showing the structure of the adjusting seat of Figure 3;

Figure 6 is a top plan view of the adjusting seat of Figure 3;

Figure 7 is a schematic structural view of the hinge elbow of Figure 3;

Figure 8 is a schematic structural view of the wedge mechanism of Figure 3;

Among them, Figure 1 - Figure 8:

Hinge elbow 1\ hopper 2\ distribution valve 2Γ, delivery pipe 3\ articulated joint 4, discharge connection pipe 5;

a hinge elbow 1, a hinge hole 11, a waist hole 12, a fixing plate 13, an adjusting seat 2, a connecting plate 21, a first mounting hole 211, a second mounting hole 212, a first hinge plate 22, a first hinge hole 221, The second hinge plate 23, the pin shaft 3, the adjusting screw 4, the first lock nut 5, the second lock nut 6, the adjusting nut 7, the wedge mechanism 8, the connecting shaft 81, and the wedge pin 82. detailed description

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 drawings and specific embodiments.

Please refer to FIG. 3 to FIG. 8. FIG. 3 is a schematic structural view of an adjustable hinge elbow connecting device according to the present invention; FIG. 4 is a front view of the adjusting seat of FIG. Figure 6 is a schematic plan view of the adjustment seat of Figure 3; Figure 7 is a schematic view of the structure of the hinged pipe of Figure 3; Figure 8 is a schematic view of the structure of the wedge mechanism of Figure 3.

As shown in FIG. 3, the adjustable hinge elbow connecting device provided by the present invention comprises an adjusting seat 2, and the adjusting seat 2 is disposed at one side of the hinge elbow 1. The adjusting seat 2 has a hinge portion and a connecting plate 21 connected to each other. The hinge portion can be hinged with the hinged elbow, and the connecting plate 21 can form a bolt connection with the hopper to form a gap between the adjustable hopper and the hinge elbow 1. Specifically, the connecting plate 21 is provided with a bolt for connection with the hopper. a hole, the mounting hole is located outside the hinge portion, and the adjusting screw 4 is connectable to the hopper through the mounting hole.

In a specific embodiment, one end of the adjusting screw 4 is fixed to the hopper, and the other end of the adjusting screw 4 is inserted into the mounting hole, and an adjusting nut 7 is disposed outside the mounting hole, and the hinge bend can be adjusted by adjusting the position of the adjusting nut 7. The gap between the tube 1 and the hopper.

The adjusting screw 4 can be fixed to the hopper by the first lock nut 5. In a preferred embodiment, in order to more accurately adjust the gap between the hinge elbow 1 and the hopper, a second lock nut 6 can be provided on the inner side of the connecting plate 21. The gap between the hinge elbow 1 and the hopper can be accurately adjusted by adjusting the position of the second lock nut 6 on the adjusting screw 4.

In a specific embodiment, the first mounting hole 211 and the second mounting hole 212 are disposed on the connecting plate 21, and the first mounting hole 211 and the second mounting hole 212 are located in the same vertical plane to ensure the connection between the connecting plate 21 and the hopper. The firmness.

The hinge elbow connecting device of the structure is used for connecting the hinge portion of the hinge elbow 1 and the bolt connecting member for connecting the hopper, that is, the space required for the hinge portion and the bolt connecting member in the axial direction of the hinged elbow Small, the feeding port of the hinge elbow 1 can directly fit with the discharge port of the hopper, and there is no need to provide a discharge connecting pipe between the two to make a transition, which can ensure the proper fit between the hinge elbow 1 and the hopper. Adjusting the gap of the range does not increase the installation size of the hinge elbow 1, and thus does not increase the structural space of the concrete pumping equipment; it also reduces the ease of the rubber gasket or the discharge connecting pipe. Damaged components improve the reliability of concrete pumping equipment; due to the reduction of components, the manufacturing accuracy requirements for each component can be reduced.

In a specific embodiment, as shown in FIG. 4-6, the hinge portion may specifically include a first hinge plate 22 and a second hinge plate 23 disposed in parallel, and the first hinge plate 22 and the second hinge plate 23 may be The first hinge plate 22 and the second hinge plate 23 are respectively provided with aligned first hinge holes 221 and second hinge holes (not shown in the figure), correspondingly, as shown in FIG. 7 . As shown, the hinge elbow 1 is provided with a hinge hole 11 which is aligned with the first hinge hole 221 and the second hinge hole and is hinged by the pin shaft 33.

In a preferred embodiment, the adjustable hinge elbow 1 connecting device further includes a wedge mechanism 8 disposed on the other side of the hinge elbow 1, as shown in FIG. The connecting shaft 81 and the wedge pin 82 may be included. One end of the connecting shaft 81 is fixed to the hopper, and the other end of the connecting shaft 81 is sleeved with the fixing plate 13 fixed on the hinge elbow 1. Specifically, the fixing plate 13 may be provided. a through hole through which the connecting shaft 81 can pass, and an end of the connecting shaft 81 extends to the outer side of the fixing plate 13, and a socket is provided at the socket end of the connecting shaft 81, and the jack can be located adjacent to the fixing plate 13 or partially located in the through hole, the wedge pin 82 is inserted into the insertion hole, one side of the wedge pin 82 abuts against the fixing plate 13, and the other side abuts against the insertion hole.

When the wedge pin 82 is inserted in the direction of the insertion hole, the gap between the hinge elbow 1 and the hopper can be reduced. Conversely, when the wedge pin 82 is pulled out, the gap between the hinge elbow 1 and the hopper can be made large.

In a preferred embodiment, the through hole in the fixing plate 13 may be a waist hole 12, and the connecting shaft 81 is sleeved in the waist hole 12, and the position of the hinge elbow 1 can be adjusted in the left-right direction or the up-and-down direction through the waist hole 12. So that the hinge elbow 1 can be in the desired position.

In this embodiment, the mounting hole is located outside the hinge portion, and it may be referred to that the mounting hole is located on the upper side of the hinge portion. It can also be said that the mounting hole is located on the right side of the hinge portion. It can be understood that the installation position of the mounting hole should be within the protection scope of the present invention as long as the bolt connector and the hinge portion are misaligned.

In the above embodiment, the adjusting screw 4 is fixed to the hopper by the lock nut, and the present invention is not limited thereto, and the end portion of the adjusting screw 4 may be fixed to the hopper by welding or the like.

In the above embodiment, the wedge mechanism 8 is provided on the other side of the hinge elbow 1 to adjust the gap between the hinge elbow 1 and the hopper, and the present invention is not limited thereto, in the case where the structural space of the concrete pumping device permits It is also possible to provide the adjustment seat 2 structure on the other side of the hinge elbow 1 as well The specific structure is similar to the above embodiment, and will not be described in detail herein. Such a solution should also be within the scope of the present invention.

The invention also provides a concrete pumping device, wherein the hinge bends and hoppers of the concrete pumping device are connected by the adjustable hinge elbow connecting device described above. Since the above-mentioned adjustable hinge elbow connecting device has the above technical effects, the concrete pumping device having the adjustable hinge elbow connecting device should also have corresponding technical effects, and will not be described in detail herein.

The above description is only a description of a preferred embodiment of the invention. It should be noted that due to the finiteness of the textual expression, there is an infinitely specific structure objectively, and those skilled in the art will not deviate from the principles of the present invention. A number of improvements and retouchings may also be made, and such improvements and refinements are also considered to be within the scope of the present invention.

Claims

Rights request

An adjustable hinge elbow connecting device for connecting a hinge elbow (1) and a hopper, characterized in that it comprises an adjusting seat (2) provided on one side of the hinge elbow (1), the adjustment The seat (2) has an articulated joint portion and a connecting plate (21), the hinge portion is hinged with the hinge elbow (1), and the connecting plate (21) is provided with a mounting hole for forming a connection with the hopper. The mounting hole is located outside the hinge portion.

The adjustable hinge elbow connecting device according to claim 1, wherein the hinge portion comprises a first hinge plate (22) and a second hinge plate (23) disposed in parallel above and below, the first hinge The plate (22) and the second hinge plate (23) are respectively provided with aligned first hinge holes (221) and second hinge holes.

The adjustable hinge elbow connecting device according to claim 2, wherein the mounting hole is bolted to the hopper by an adjusting screw (4).

The adjustable hinge elbow connecting device according to claim 3, characterized in that one end of the adjusting screw (4) is fixed to the hopper by a lock nut.

The adjustable hinge elbow connecting device according to claim 3, characterized in that one end of the adjusting screw (4) is fixed to the hopper by welding.

The adjustable hinge elbow connecting device according to any one of claims 1 to 5, further comprising a wedge mechanism (8) provided on the other side of the hinge elbow (1), the wedge shape mechanism

(8) comprising a connecting shaft (81) and a wedge pin (82); one end of the connecting shaft (81) is fixed to the hopper, and the other end is fixed to the fixing plate (13) fixed on the hinge elbow (1) The socket is provided with a socket, and the wedge pin (82) is inserted into the socket.

The slidable hinge elbow connecting device according to claim 6, wherein the fixing plate (13) is provided with a waist hole (12), and the connecting shaft (81) is sleeved on the waist type Inside the hole (12).

8. A concrete pumping device, characterized in that the hinged pipe of the concrete pumping device

(1) The hopper is connected by the adjustable hinge elbow connecting device according to any one of claims 1-7.