Supporting system for stabilizing pumping of concrete pump truck

Abstract

The utility model relates to a supporting system for stabilizing pumping of a concrete pump truck, which comprises a reversing device arranged at the output ends of two conveying cylinders of the concrete pump truck; one end of the supporting device is fixedly arranged at the bottom end of the suspended part of the concrete pump truck conveying cylinder, and the other end is connected with the ground during working; the power device is used for outputting power to the supporting device; the power transmission device is connected with the power device and the supporting device and used for transmitting power output by the power device to the supporting device. The vibration source is located at the tail end of a cantilever structure, the local rigidity strengthening and vibration reduction effect is poor, a supporting device is arranged at the suspended part of a conveying cylinder, the cantilever length of a reversing device is reduced, the vibration source amplitude is limited from the source, the vibration of the whole machine can be reduced, the anti-fatigue performance of the whole machine is improved, and the service life is prolonged; in addition, the supporting device is only installed locally, and weight and space waste caused by rigidity reinforcement of a large structure is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pumping machinery, in particular to a support system for stabilizing the pumping of a concrete pump truck. BACKGROUND

[0002] A concrete pump truck is a common engineering machine serving various types of concrete facility construction, among which the most widely used is the double-cylinder alternating pumping mode, the basic principle of which is that two delivery cylinders alternately perform material suction and discharge actions. A reversing valve mechanism is provided in this pumping process, and the reversing valve can timely reverse to connect the delivery cylinder to the delivery pipe when discharging and to the hopper when sucking. When one of the two delivery cylinders is sucking, the other is discharging, achieving the purpose of continuous pumping.

[0003] The reversing valve is called a reversing device, and the structure and concrete resistance need to be overcome during reversing. To ensure continuous operation of the system, the reversing device needs to be fast and powerful, which in turn causes a large reversing impact, resulting in large vibrations of the structure near the reversing device and further causing the whole machine to shake. The shaking of the whole machine not only affects the construction quality but also poses a certain risk to the personal safety of the construction operators. On the other hand, the mechanical structure is prone to fatigue damage under the influence of long-term vibrations, resulting in cracking, welding, and even breaking accidents. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a support system for stabilizing the pumping of a concrete pump truck, which sets a support device at the source of vibration to limit the amplitude of the vibration source.

[0005] According to the support system for stabilizing the pumping of a concrete pump truck, the reversing device is arranged at the output end of the two delivery cylinders of the concrete pump truck, the support device is fixedly arranged at the bottom end of the suspended part of the delivery cylinder of the concrete pump truck at one end and connected to the ground at the other end during operation, the power device is used for outputting power to the support device, and the power transmission device is connected to the power device and the support device and used for transmitting the power output by the power device to the support device.

[0006] In one embodiment, the support device, power device, and power transmission device form a hydraulic transmission system.

[0007] In one embodiment, the support device, power device, and power transmission device form an electric transmission system.

[0008] In one embodiment, the support device, power device, and power transmission device form a pneumatic transmission system.

[0009] In one embodiment, the support device is arranged directly below the reversing device.

[0010] In one of the embodiments, a pressure locking device is further included for limiting the working pressure of the support device, and the support device loses the supporting ability when the working pressure of the support device exceeds the preset limit of the support device.

[0011] In one of the embodiments, a pressure reading device is further included for monitoring the working pressure of the support device.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] (1) The vibration of the whole machine caused by the reversing impact, the vibration source is at the end of the cantilever structure, the local rigid damping effect is not good, the support device is arranged at the suspended part of the conveying cylinder, the cantilever length of the reversing device is reduced, the vibration amplitude of the vibration source is limited from the source, the vibration of the whole machine is reduced, the fatigue resistance of the whole machine is improved, and the service life is improved.

[0014] (2) The support device is only installed locally, the weight and space waste caused by the rigid reinforcement of the large structure is avoided, and the whole machine arrangement is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model structure schematic diagram.

[0016] In the drawing: 1, support device, 2, reversing device, 3, power device, 4, pressure locking device, 5, pressure reading device, 6, pressure transmission pipeline. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned purposes, features and advantages of the application more obvious and easy to understand, the specific embodiments of the application will be described in detail below in conjunction with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the application. However, the application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the content of the application, therefore the application is not limited by the specific embodiments disclosed below.

[0018] In the application, unless otherwise explicitly specified and limited, if the terms "installation", "connection", "connection", "fixing" and the like appear, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0019] In this application, unless otherwise explicitly specified and limited, if there is a description such as "on" or "under" or similar description of the first feature to the second feature, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "on", "above" and "over" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0020] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation.

[0021] Referring to Figure 1 , Figure 1 A structural diagram in an embodiment of the present application is shown, and the support system for stabilizing the pumping of a concrete pump truck provided by the embodiment of the present application comprises: a reversing device 2 provided at the output end of two delivery cylinders of the concrete pump truck; a support device 1 fixedly provided at the directly below the reversing device 2, and connected with the ground during operation; a power device 3 for outputting power to the support device 1; and a power transmission device connected with the power device 3 and the support device 1, and used for transmitting the power output by the power device 3 to the support device 1. The two delivery cylinders alternately suck in and output concrete, so that there is always one delivery cylinder outputting concrete at the same time, and therefore the reversing device 2 needs to alternately connect the two delivery cylinders, resulting in severe vibration.

[0022] In this embodiment, the support device 1, the power device 3 and the power transmission device are a hydraulic transmission system. Specifically, the support device 1 is a hydraulic oil cylinder, the power device 3 is a hydraulic motor, and the power transmission device 6 is an oil pipeline. The hydraulic motor provides pressure for the hydraulic oil cylinder through the oil pipeline, so that the hydraulic oil cylinder is lifted up, and the support function of the reversing device 2 is completed, thereby reducing the vibration of the whole machine generated by the reversing device 2.

[0023] In this embodiment, a pressure locking device 4 is further included for limiting the working pressure of the support device 1, and the support device 1 loses the supporting ability when the working pressure of the support device 1 exceeds the preset limit of the support device 1. This embodiment mainly supports through four main support devices, and the main support devices have the possibility of internal leakage. If the working pressure of the support device 1 is not limited, the pressure borne by the support device 1 will exceed the limit, and when the main support device fails, the support device 1 will replace the main support device to generate a supporting effect, which will not only cause damage to the support device 1, but also hinder the construction personnel from discovering the problem of the main support device as soon as possible. Specifically, the pressure locking device 4 is a hydraulic lock, and when the cylinder pressure of the hydraulic cylinder exceeds the limit, the hydraulic lock will overflow to make the hydraulic cylinder lose the supporting ability. The hydraulic lock can protect the hydraulic cylinder from overload damage, and avoid the whole machine from tilting due to the failure of the main support.

[0024] In this embodiment, a pressure reading device 5 is further included for monitoring the working pressure of the support device 1. The pressure reading device 5 can more accurately detect the pressure of the support device 1, avoid damage to the support device 1, and also intuitively reflect whether the main support device is working normally.

[0025] When the embodiment is running:

[0026] (1) In the driving state, the hydraulic cylinder is retracted and is in a non-working state, which does not affect the normal driving of the vehicle.

[0027] (2) When the equipment enters the working posture, the hydraulic cylinder is extended and supports the ground or other fixed objects, enters the working state, and starts to reduce the vibration of the whole machine generated by the reversing device 2.

[0028] (3) The hydraulic lock and the pressure reading device work, and when the cylinder pressure of the hydraulic cylinder exceeds the limit, the hydraulic lock will overflow to make the hydraulic cylinder lose the supporting ability.

[0029] The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0030] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A support system for stabilizing concrete pumping operations, characterized in that, include: The reversing device is located at the output end of the two conveying cylinders of the concrete pump truck; The support device is fixed at one end to the bottom of the suspended part of the concrete pump truck's conveying cylinder, and the other end is connected to the ground when working. A power unit, used to output power to the support device; A power transmission device, connected to the power unit and the support device, is used to transmit the power output by the power unit to the support device; The support device is located directly below the reversing device.

2. The support system for stabilizing concrete pumping by a concrete pump truck according to claim 1, characterized in that, It also includes a pressure locking device for limiting the working pressure of the support device, which causes the support device to lose its supporting capacity when the working pressure of the support device exceeds the preset limit of the support device.

3. The support system for stabilizing concrete pumping by a concrete pump truck according to claim 1, characterized in that, It also includes a pressure reading device for monitoring the working pressure of the support device.

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