CN-121976451-A - Crack repairing equipment and method for traffic highway maintenance

CN121976451ACN 121976451 ACN121976451 ACN 121976451ACN-121976451-A

Abstract

The invention relates to crack repairing equipment for traffic highway maintenance, which comprises a vehicle body, a cold air inlet pipe, a tuyere, a necking section, a throat part, a flaring section, a hot air supply assembly, a controller, a telescopic device and a valve plate, wherein the controller is connected with the vehicle body; according to the invention, high-temperature low-speed hot air is supplied to the venturi tube through the hot air supply assembly, the vehicle body moves from the initial end to the tail end of the crack, the controller controls the telescopic device to open the valve plate, when the hot air passes through the venturi tube, part of ambient cold air is sucked from the cold air inlet tube under the action of venturi effect, the cold air is mixed with the hot air to generate an air flow with increased speed but reduced temperature to blow away dust, then the vehicle body moves from the tail end to the initial end of the crack, the controller controls the telescopic device to close the valve plate, the high-temperature low-speed hot air directly passes through the venturi tube, deep moisture can be evaporated at high temperature, the crack wall is preheated, the temperature difference between the telescopic device and the sealant is reduced, the flow and infiltration of the sealant are promoted, and the crack repairing quality is improved.

Inventors

ZHANG YINGLI
WANG YACHAO
FENG KUN
LOU BIN
Liu Niuzhi

Assignees

河南交院工程技术集团有限公司

Dates

Publication Date: 20260505
Application Date: 20260325

Claims (10)

1. A crack repair apparatus for traffic highway maintenance, comprising: a vehicle body; The dual-mode tuyere comprises a venturi tube, a cold air inlet tube and a tuyere, wherein the venturi tube comprises a necking section, a throat and a flaring section which are connected in sequence, the cold air inlet tube is fixedly connected with the throat, and the tuyere is connected with the flaring section; The hot air supply assembly is connected with the necking section of the venturi tube and is used for supplying hot air to the venturi tube; the control assembly comprises a controller, a telescopic device and a valve plate, wherein the controller is arranged on a vehicle body, the telescopic device is vertically arranged at the lower end of the vehicle body and is electrically connected with the controller, the valve plate is fixedly connected with the telescopic end of the telescopic device, and the valve plate is used for opening or closing a cold air inlet pipe.
2. The crack repairing device for traffic highway maintenance according to claim 1, wherein the hot air supply assembly comprises a storage tank arranged on a vehicle body and used for storing sealant in a heating state, a sleeve sleeved outside the storage tank, a cavity formed between the sleeve and the storage tank, a necking section of the venturi tube connected with the lower part of the cavity, and a fan connected with the upper part of the cavity and electrically connected with the controller.
3. The crack repairing device for traffic highway maintenance according to claim 2, wherein a spiral blade is arranged in the cavity, the inner side of the spiral blade is fixedly connected with the storage tank, and the outer side of the spiral blade is fixedly connected with the inner wall of the sleeve.
4. The crack repairing device for traffic highway maintenance according to claim 2, wherein the outer wall of the storage tank is provided with radiating fins extending into the cavity.
5. The crack repairing device for traffic highway maintenance according to claim 2, wherein the outer side of the sleeve is sleeved with a vacuum heat-insulating layer.
6. The crack repairing device for traffic highway maintenance according to claim 2, wherein a heater electrically connected with the controller is arranged inside the storage tank.
7. The crack repairing apparatus for traffic highway maintenance according to claim 1, wherein said tuyere is provided obliquely downward.
8. The crack repairing device for traffic highway maintenance according to claim 2, wherein the storage tank is connected with a feed pump electrically connected with the controller, and the feed pump is connected with a feed pipe.
9. The crack repairing device for traffic highway maintenance according to claim 1, wherein two side plates are oppositely arranged at the bottom of the vehicle body, the connecting line direction of the two side plates is perpendicular to the advancing direction of the vehicle body, a rotating shaft is fixedly connected between the two side plates, two mounting plates are rotatably connected on the rotating shaft, an abutting plate and a pressing roller are arranged between the two mounting plates, the abutting plate and the pressing roller are positioned at two sides of the rotating shaft, and the abutting plate is contacted with the bottom of the valve plate under the action of gravity of the pressing roller.
10. A method for repairing a crack for a traffic highway maintenance, which is carried out by the crack repairing apparatus for a traffic highway maintenance according to claim 7, comprising the steps of: S1, heating sealant in a storage tank by a heater, wherein part of heat is dissipated in a cavity through the wall of the storage tank; S2, a fan extracts cold air in the environment, and the cold air exchanges heat with the cavity in the process of passing through the cavity to form high-temperature low-speed hot air; s3, the controller controls the telescopic device to open the valve plate, when the hot air passes through the venturi tube, part of ambient cold air is sucked from the cold air inlet tube under the action of the venturi effect, the cold air and the hot air are mixed to generate an air flow with increased speed and reduced temperature, and the vehicle body moves from the starting end to the tail end of the crack to thoroughly blow away dust; and S4, the controller controls the telescopic device to close the valve plate, high-temperature and low-speed hot air directly passes through the Venturi tube, the vehicle body moves from the tail end to the starting end of the crack, and the sealant is poured after evaporating the moisture in the crack and preheating the crack.

Description

Crack repairing equipment and method for traffic highway maintenance Technical Field The invention relates to the technical field of road maintenance, in particular to crack repairing equipment and method for traffic road maintenance. Background With the increasing traffic flow and the increasing life of roads, the road surface inevitably becomes cracked. These cracks, if not handled in time, can lead to a serious set of problems. First, the cracks can allow rainwater and the like to penetrate into the pavement base layer, weaken the structural strength of the base layer, and further cause pavement damage of larger area, such as potholes, subsidence and the like. Secondly, the existence of the crack can also influence the comfort and the safety of driving, the vehicle can bump when driving on the road surface with the crack, and the crack can possibly block the tire of the vehicle or cause dangerous situations such as vehicle out of control. Therefore, effective repair of road cracks is a critical task in road maintenance, which is the use of crack repair equipment. In highway crack repair equipment, the sealant is poured and flows by the dead weight of materials, dust and sundries in cracks can form an isolation layer to prevent the sealant from being directly adhered to crack walls, meanwhile, water vapor in wet cracks can be instantaneously gasified when the high-temperature sealant contacts, closed bubbles are formed to destroy adhesion, the bubbles are cracked under the action of a later vehicle load to cause local sedimentation, secondary asphalt filling is needed when the asphalt is locally sedimented to generate a height difference, and as the asphalt filled for the first time is completely solidified, new asphalt naturally flows under the action of gravity and is difficult to break through a closed interface of old asphalt, layering phenomenon can occur, and secondary damage of a repair area is caused when the vehicle load is repeatedly rolled. At present, a common method is to blow away dust particles in the cracks and remove moisture in the cracks by using a hot air gun, and then to perform sealant filling, wherein dust can be baked to the inner wall of the cracks at high temperature of the hot air machine, so that the dust is not thoroughly removed, the sealant filling is negatively influenced, and finally the crack repairing quality is reduced. Disclosure of Invention The embodiment of the invention provides a crack repairing device and method for traffic highway maintenance, which can solve the problems that dust can be baked to the inner wall of a crack at high temperature of an air heater when the air heater is used for cleaning the crack, so that the dust is not thoroughly cleaned, the filling of sealant is negatively influenced, and the crack repairing quality is finally reduced in the prior art. In order to solve the technical problems, the invention adopts the following technical scheme that the crack repairing device and the method for traffic highway maintenance comprise the following steps: a vehicle body; The dual-mode tuyere comprises a venturi tube, a cold air inlet tube and a tuyere, wherein the venturi tube comprises a necking section, a throat and a flaring section which are connected in sequence, the cold air inlet tube is fixedly connected with the throat, and the tuyere is connected with the flaring section; The hot air supply assembly is connected with the necking section of the venturi tube and is used for supplying hot air to the venturi tube; the control assembly comprises a controller, a telescopic device and a valve plate, wherein the controller is arranged on a vehicle body, the telescopic device is vertically arranged at the lower end of the vehicle body and is electrically connected with the controller, the valve plate is fixedly connected with the telescopic end of the telescopic device, and the valve plate is used for opening or closing a cold air inlet pipe. Preferably, the hot air supply assembly comprises a storage tank, a sleeve, a fan and a controller, wherein the storage tank is arranged on a vehicle body and used for storing sealant in a heating state, the sleeve is sleeved on the outer side of the storage tank, a cavity is formed between the sleeve and the storage tank, a necking section of the venturi tube is connected with the lower portion of the cavity, the fan is connected with the upper portion of the cavity, and the fan is electrically connected with the controller. Preferably, a spiral blade is arranged in the cavity, the inner side of the spiral blade is fixedly connected with the storage tank, and the outer side of the spiral blade is fixedly connected with the inner wall of the sleeve. Preferably, the outer wall of the storage tank is provided with radiating fins extending into the cavity. Preferably, the outer side of the sleeve is sleeved with a vacuum heat-insulating layer. Preferably, a heater electrically connected with the controller is arr