Power unit of suction excavating equipment and suction excavating equipment

Abstract

The utility model relates to a power unit of a suction excavating device and the suction excavating device, the power unit comprises an engine, a gearbox, a safety mechanism and a fan assembly, the gearbox is in transmission connection with the engine; the safety mechanism is in transmission connection with the gearbox; the fan assembly is in transmission connection with the safety mechanism, and the safety mechanism is used for controlling the torque, so that the fan assembly is started smoothly, and the fan assembly is prevented from being damaged under the overload condition. During rescue operation, the engine is started, the engine transmits power to the gearbox, the gearbox transmits the power to the safety mechanism after speed change and torque change, and finally the power is transmitted to the fan assembly through the safety mechanism, so that the fan assembly operates to work, and in the transmission process of the engine and the fan assembly, the fan assembly is driven to work. Torque is controlled by arranging the safety mechanism, so that the fan assembly is started smoothly, the fan assembly is prevented from being damaged under the overload condition, the service life of the fan assembly is prolonged, and flameout of an engine is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of emergency rescue equipment, and particularly relates to a power unit of a suction and excavation device and the suction and excavation device. Background Art

[0002] At present, vehicle-mounted pneumatic suction and excavation vehicles are widely used in industries such as personnel rescue, earthquake rescue, construction and maintenance of inflammable and explosive pipelines, construction and maintenance of urban pipe networks, industrial waste cleaning, and construction and maintenance of highways and railways due to their flexibility and strong environmental adaptability, and they are not likely to cause secondary injuries in personnel rescue.

[0003] At present, a fan is provided on the existing suction and excavation vehicle. By means of the fan, negative pressure is generated in the loading box, so that materials are sucked into the loading box. The fan of the existing suction and excavation vehicle is usually connected to the engine by belt drive. In this kind of drive mode, when the fan starts, it has a large impact on the fan, reducing the service life of the fan and easily causing the engine to stall. Summary of the Utility Model

[0004] Therefore, it is necessary to provide a power unit of a suction and excavation device and the suction and excavation device to solve the technical problem that the fan of the existing suction and excavation vehicle is usually connected to the engine by belt drive. In this kind of drive mode, when the fan starts, it has a large impact on the fan, reducing the service life of the fan and easily causing the engine to stall.

[0005] To achieve the above object, the inventor provides a power unit of a suction and excavation device, including:

[0006] An engine;

[0007] A gearbox, the gearbox is in transmission connection with the engine;

[0008] A safety mechanism, the safety mechanism is in transmission connection with the gearbox;

[0009] And a fan assembly, the fan assembly is in transmission connection with the safety mechanism, and the safety mechanism is used to control the torque so that the fan assembly starts smoothly and prevent the fan assembly from being damaged under overload conditions.

[0010] As a preferred structure of the utility model, the safety mechanism includes a steel ball clutch and a first belt assembly. The output shaft of the gearbox is in transmission connection with the steel ball clutch, and the steel ball clutch and the fan assembly are in transmission connection through the first belt assembly.

[0011] As a preferred structure of the present utility model, the first belt assembly includes a first pulley, a second pulley, and a belt member. The first pulley is disposed on the steel ball clutch, the second pulley is disposed on the input shaft of the fan assembly, and the belt member is sleeved between the first pulley and the second pulley.

[0012] As a preferred structure of the present utility model, the fan assembly includes a speed increasing box and a fan. The safety mechanism is in transmission connection with the input shaft of the speed increasing box, and the output shaft of the speed increasing box is in transmission connection with the input shaft of the fan.

[0013] As a preferred structure of the present utility model, the power unit of the suction and excavation device further includes an air compressor and a second belt assembly. The air compressor is in transmission connection with the steel ball clutch through the second belt assembly.

[0014] As a preferred structure of the present utility model, the power unit of the suction and excavation device further includes a first transmission shaft. The engine is in transmission connection with the input shaft of the gearbox through the first transmission shaft.

[0015] As a preferred structure of the present utility model, the power unit of the suction and excavation device further includes a first power take-off and a hydraulic system. The first power take-off is in transmission connection with the engine, and the first power take-off is in transmission connection with the hydraulic pump of the hydraulic system.

[0016] Different from the prior art, the beneficial effects of the above technical solution are as follows: The power unit of the suction and excavation device of the present utility model includes an engine, a gearbox, a safety mechanism, and a fan assembly. The gearbox is in transmission connection with the engine; the safety mechanism is in transmission connection with the gearbox; the fan assembly is in transmission connection with the safety mechanism. The safety mechanism is used to control the torque so that the fan assembly starts smoothly and prevents the fan assembly from being damaged under overload conditions. When the power unit of the suction and excavation device of the present utility model is used for emergency rescue operations, the engine is started. The engine transmits power to the gearbox. After the gearbox changes speed and torque, it transmits power to the safety mechanism, and finally transmits power to the fan assembly through the safety mechanism, so that the fan assembly operates to work. During the transmission process between the engine and the fan assembly, the safety mechanism is provided to control the torque, so that the fan assembly starts smoothly, prevents the fan assembly from being damaged under overload conditions, improves the service life of the fan assembly, and prevents the engine from stalling, ensuring the orderly development of emergency rescue operations.

[0017] To achieve the above object, the inventor also provides a suction and excavation device, including the power unit of the suction and excavation device as described in any one of the above provided by the inventor.

[0018] Different from the prior art, the beneficial effects of the above technical solution are as follows: For the suction and excavation equipment of the present utility model, during emergency rescue operations, when the engine is started, the engine transmits power to the gearbox. After the gearbox changes speed and torque, it transmits power to the safety mechanism, and finally the safety mechanism transmits power to the fan assembly, causing the fan assembly to operate. During the transmission process between the engine and the fan assembly, a safety mechanism is provided to control the torque, so that the fan assembly starts smoothly, preventing the fan assembly from being damaged under overload conditions, improving the service life of the fan assembly, and preventing the engine from stalling, ensuring the orderly progress of emergency rescue operations.

[0019] The above description of the utility model content is only an overview of the technical solution of this application. In order to enable those of ordinary skill in the art to more clearly understand the technical solution of this application, and thus be able to implement it according to the content recorded in the description and the drawings, and in order to make the above objects, other objects, features, and advantages of this application more easily understood, the following is described in conjunction with the specific embodiments of this application and the drawings. Brief Description of the Drawings

[0020] The drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of the specific embodiments of this application and other related contents, and should not be considered as a limitation to this application.

[0021] In the drawings of the specification:

[0022] Figure 1 It is one of the front views of the power unit of the suction and excavation equipment described in the specific embodiment;

[0023] Figure 2 It is the second front view of the power unit of the suction and excavation equipment described in the specific embodiment;

[0024] Figure 3 It is the third front view of the power unit of the suction and excavation equipment described in the specific embodiment;

[0025] Figure 4 It is one of the structural schematic diagrams of the power unit of the suction and excavation equipment described in the specific embodiment;

[0026] Figure 5 It is the second structural schematic diagram of the power unit of the suction and excavation equipment described in the specific embodiment.

[0027] The reference numerals involved in the above drawings are explained as follows:

[0028] 1. Engine,

[0029] 11. First transmission shaft,

[0030] 2. Gearbox,

[0031] 3. Steel ball clutch

[0032] 4. Fan assembly

[0033] 41. Speed increasing box

[0034] 42. Fan

[0035] 5. First belt assembly

[0036] 51. First pulley

[0037] 52. Second pulley

[0038] 53. Belt component

[0039] 6. Air compressor

[0040] 61. Second belt assembly

[0041] 7. First power take-off

[0042] 8. Hydraulic pump Detailed implementation manners

[0043] To illustrate in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of this application, the following will be described in detail with reference to the specific examples listed and in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application, so they are only used as examples and cannot be used to limit the protection scope of this application.

[0044] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The term "embodiment" appearing in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0045] Unless otherwise defined, the meanings of the technical terms used herein are the same as those generally understood by those skilled in the technical field to which this application belongs; the use of the relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0046] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships. For example, A and / or B means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " in this text generally represents an "or" logical relationship between the associated objects before and after.

[0047] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary-secondary, or sequential relationships between these entities or operations.

[0048] Without further limitation, in this application, the expressions "comprising", "including", "having", or other similar expressions used in a statement are intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method, or product that includes the described elements. Thus, a process, method, or product that includes a series of elements may include not only those defined elements, but also other elements that are not explicitly listed, or elements that are inherent to such a process, method, or product.

[0049] Similar to the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than", "exceeding", etc. are understood not to include the specified number; expressions such as "above", "below", "within", etc. are understood to include the specified number. In addition, in the description of the embodiments of this application, the meaning of "a plurality of" is two or more (including two). Similar expressions related to "many", such as "multiple groups", "multiple times", etc., are understood in the same way, unless otherwise specifically defined.

[0050] In the description of the embodiments of this application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiment or the drawing. This is only for the convenience of describing the specific embodiments of this application or for the reader's understanding, and does not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element.

[0051] Unless otherwise clearly specified or defined, in the description of the embodiments of the present application, the terms such as "installation", "connection", "attachment", "fixation", "setting" and the like shall be understood in a broad sense. For example, the "connection" may be a fixed connection, a detachable connection, or an integral setting; it may be a mechanical connection, an electrical connection, or a communication connection; it may be a direct connection, or an indirect connection through an intermediate medium; it may be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which the present application pertains, the specific meanings of the above terms in the embodiments of the present application may be understood according to specific circumstances.

[0052] Please refer to Figures 1 to 5 , this embodiment relates to a power unit of a suction excavation device, wherein the suction device in this embodiment is a suction excavation vehicle; the power unit of the suction excavation device includes:

[0053] An engine 1; wherein the engine 1 converts the chemical energy of fuel into the mechanical energy of piston movement and outputs power externally; the engine 1 in this embodiment is a diesel engine 1; in other embodiments, the engine 1 may also be a gasoline engine 1, an electric vehicle motor, and a hybrid power, etc.

[0054] A gearbox 2, the gearbox 2 is in transmission connection with the engine 1; wherein in this embodiment, the gearbox 2 is a belt gearbox 2, and the reason for selecting the belt gearbox 2 is that it has advantages such as smooth operation and strong reliability.

[0055] A safety mechanism, the safety mechanism is in transmission connection with the gearbox 2;

[0056] And a fan assembly 4, the fan assembly 4 is in transmission connection with the safety mechanism, the safety mechanism is used to control the torque, so that the fan assembly 4 starts smoothly, and prevents the fan assembly 4 from being damaged under overload conditions. The fan assembly 4 is driven by the engine 1 to operate, and the fan assembly 4 starts, so that a negative pressure is generated in the material box of the suction excavation device, and the material is sucked into the material box through the suction pipe; wherein in the transmission process between the engine 1 and the fan assembly 4, the torque is controlled by providing a safety mechanism, so that the fan assembly 4 starts smoothly, prevents the fan assembly 4 from being damaged under overload conditions, improves the service life of the fan assembly 4, and prevents the engine 1 from stalling, ensuring the orderly development of the emergency rescue operation.

[0057] Specifically, in the power unit of the suction excavation equipment in this embodiment, during rescue operations, the engine 1 is started, and the engine 1 transmits power to the gearbox 2. After the gearbox 2 changes speed and torque, it transmits power to the safety mechanism, and finally transmits power to the fan assembly 4 through the safety mechanism, so that the fan assembly 4 can operate and work. During the transmission process between the engine 1 and the fan assembly 4, the torque is controlled by providing a safety mechanism to ensure that the fan assembly 4 starts smoothly, prevent the fan assembly 4 from being damaged under overload conditions, increase the practical life of the fan assembly 4, and prevent the engine 1 from stalling, thereby ensuring the orderly development of the rescue operation.

[0058] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the safety mechanism includes a steel ball clutch 3 and a first belt assembly 5, the output shaft of the gearbox 2 is connected to the steel ball clutch 3, and the steel ball clutch 3 is connected to the fan assembly 4 through the first belt assembly 5. Specifically, during the rescue operation, the engine 1 is started, the engine 1 transmits power to the gearbox 2, the gearbox 2 transmits power to the steel ball clutch 3 after speed and torque change, the steel ball clutch 3 and the fan assembly 4 are connected through the first belt assembly 5, and finally the power is transmitted to the fan assembly 4, so that the fan assembly 4 operates to work, wherein during the transmission process between the engine 1 and the fan assembly 4, the torque is controlled by the steel ball clutch 3, so that the fan assembly 4 starts smoothly, prevents the fan assembly 4 from being damaged under overload conditions, improves the practical life of the fan assembly 4, and prevents the engine 1 from stalling, so as to ensure the orderly development of the rescue operation. The steel ball clutch 3 is selected because it has the advantages of simple structure, large transmission power, automatic stop of transmission under overload conditions, and convenient maintenance. It should be noted that the structure of the safety mechanism of this embodiment is not limited thereto, and those skilled in the art may select other appropriate safety mechanisms according to the teaching of this embodiment.

[0059] Specifically, in this embodiment, if Figures 1 to 5 As shown, the first belt assembly 5 includes a first pulley 51, a second pulley 52 and a belt component 53, the first pulley 51 is arranged on the housing of the steel ball clutch 3, the second pulley 52 is arranged on the input shaft of the fan assembly 4, the belt component 53 is sleeved between the first pulley 51 and the second pulley 52, the steel ball clutch 3 and the fan assembly 4 are connected by the belt component 53, the power is transmitted to the fan assembly 4, so that the fan assembly 4 operates to work. It should be noted that the structure of the first belt assembly 5 of this embodiment is not limited to this, and those skilled in the art can select other suitable first belt assemblies 5 according to the teachings of this embodiment.

[0060] Optionally, in some embodiments, such asFigures 1 to 5 As shown, the fan assembly 4 includes a speed increaser 41 and a fan 42. The safety mechanism is in transmission connection with the input shaft of the speed increaser 41, and the output shaft of the speed increaser 41 is in transmission connection with the input shaft of the fan 42. A speed increaser 41 is provided to drive the impeller of the fan 42 to rotate at a high speed, increasing the impeller speed, thereby improving the working efficiency of the fan 42.

[0061] Optionally, in some embodiments, as Figures 1 to 5 shown, the power unit of the suction excavation device further includes an air compressor 6 and a second belt assembly 61. The second belt assembly 61 is arranged on one side of the first belt assembly 5. The air compressor 6 is in transmission connection with the steel ball clutch 3 through the second belt assembly 61 to drive the air compressor 6 to work. The steel ball clutch 3 drives the fan assembly 4 and the air compressor 6 to operate simultaneously, with a compact structure and reduced occupied space. The air compressor 6 is used to provide gas for the pulse dust removal of the suction device. It should be noted that the structure of the second belt assembly 61 in this embodiment is the same as that of the first belt assembly 5, and will not be elaborated here.

[0062] Optionally, in some embodiments, as Figures 1 to 5 shown, the power unit of the suction excavation device further includes a first transmission shaft 11. The engine 1 is in transmission connection with the input shaft of the gearbox 2 through the first transmission shaft 11.

[0063] Optionally, in some embodiments, as Figures 1 to 5 shown, the power unit of the suction excavation device further includes a first power take-off 7 and a hydraulic system. The first power take-off 7 is in transmission connection with the engine 1, and the first power take-off 7 is in transmission connection with the hydraulic pump 8 of the hydraulic system to drive the hydraulic pump 8 to work. The hydraulic system includes a hydraulic oil tank, a hydraulic pump 8, a hydraulic valve group, and hydraulic pipelines. The hydraulic oil tank, the hydraulic pump 8, and the hydraulic valve group are connected through the hydraulic pipelines to form a circuit.

[0064] Please refer to Figures 1 to 5, this embodiment also relates to a suction excavation equipment, including a power unit of the suction excavation equipment as described in any one of the above-mentioned embodiments; wherein the suction equipment in this embodiment is a suction excavation vehicle. Specifically, during the rescue operation, the engine 1 is started, and the engine 1 transmits power to the gearbox 2. After the gearbox 2 changes speed and torque, it transmits power to the steel ball clutch 3. The steel ball clutch 3 and the fan assembly 4 are connected by a belt component 53, and finally the power is transmitted to the fan assembly 4, so that the fan assembly 4 operates to work. During the transmission process between the engine 1 and the fan assembly 4, the torque is controlled by providing a steel ball clutch 3, so that the fan assembly 4 starts smoothly, prevents the fan assembly 4 from being damaged under overload conditions, increases the practical life of the fan assembly 4, and prevents the engine 1 from stalling, so as to ensure the orderly development of the rescue operation.

[0065] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A power unit for a suction excavation device, characterized in that: include: engine; A gearbox, the gearbox being drivingly connected to the engine; A safety mechanism, the safety mechanism being transmission-connected to the gearbox; And a fan assembly, the fan assembly is transmission-connected to the safety mechanism, and the safety mechanism is used to control the torque so that the fan assembly starts smoothly and prevents the fan assembly from being damaged under overload conditions.

2. The power unit of the suction excavation equipment according to claim 1, characterized in that: The safety mechanism comprises a steel ball clutch and a first belt assembly. The output shaft of the gearbox is transmission-connected to the steel ball clutch. The steel ball clutch is transmission-connected to the fan assembly via the first belt assembly.

3. The power unit of the suction excavation equipment according to claim 2, characterized in that: The first belt assembly includes a first pulley, a second pulley and a belt component. The first pulley is arranged on the steel ball clutch, the second pulley is arranged on the input shaft of the fan assembly, and the belt component is sleeved between the first pulley and the second pulley.

4. The power unit of the suction excavation equipment according to any one of claims 1 to 3, characterized in that: The fan assembly includes a speed increasing box and a fan, the safety mechanism is drivingly connected to the input shaft of the speed increasing box, and the output shaft of the speed increasing box is drivingly connected to the input shaft of the fan.

5. The power unit of the suction excavation equipment according to claim 2 or 3, characterized in that: The power unit of the suction excavation equipment also includes an air compressor and a second belt assembly, and the air compressor is transmission-connected to the steel ball clutch via the second belt assembly.

6. The power unit of the suction excavation equipment according to claim 1, characterized in that: The power unit of the suction excavation equipment further comprises a first transmission shaft, and the engine is transmission-connected to the input shaft of the gearbox via the first transmission shaft.

7. The power unit of the suction excavation equipment according to claim 1, characterized in that: The power unit of the suction excavation equipment also includes a first power take-off and a hydraulic system. The first power take-off is transmission-connected to the engine, and the first power take-off is transmission-connected to the hydraulic pump of the hydraulic system.

8. A suction excavation device, characterized in that: A power unit comprising the suction excavation equipment as claimed in any one of claims 1 to 7.

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