Special bottom plate protection device for crawler-type pushing equipment and use method

Abstract

The invention relates to the technical field of crawler-type pushing equipment, and particularly discloses a special bottom plate protection device for crawler-type pushing equipment and a using method.The using method comprises the steps that rubber protection belts are installed on the upper surface and the lower surface of a crawler belt through support assemblies arranged on the two sides of the crawler-type pushing equipment; a closed transmission rubber protection belt is formed around the crawler belt; the pushing oil cylinder serves as power for driving the crawler belt to rotate to drive the crawler belt to act, and the distance sensors arranged at the upper end and the lower end of the pushing oil cylinder are used for measuring pushing distance signals of the pushing oil cylinder in real time. And the pushing distance signal is transmitted to a control system, the control system obtains the pushing speed of a pushing oil cylinder based on the pushing distance signal, and the rotating speed of a servo driving motor is adjusted according to the pushing speed so that the rubber protection belt can automatically follow a crawler belt to synchronously rotate. Automatic sensing and automatic following are achieved, the speed can be automatically changed according to the pushing speed, and external force on the rubber belt is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of crawler-type pushing equipment, and in particular to a special bottom plate protection device for crawler-type pushing equipment and a use method thereof. Background Art

[0002] The steel box girder jacking construction is an important construction form in the field of steel box girder installation, and is particularly suitable for the erection of steel box girder bridges such as multi-span continuous beam bridges and overpass bridges. At present, the widely used jacking construction technologies include the thorn block jacking technology and the walking jacking technology. Through a series of studies on the steel box girder jacking construction technology, a new crawler jacking equipment is developed by combining the advantages and disadvantages of the two. For example, the patent with the publication number of "CN 115110438 A" discloses a crawler jacking system and jacking construction method for steel box girders. When this technology is used, in order to protect the steel box girder coating from being damaged, a layer of rubber sheet needs to be laid between the equipment and the steel box girder. However, the steel box girder has a huge tonnage, which causes the rubber sheet to deform after repeated use. At the same time, under high temperature in summer, it cannot be bonded to the steel crawler, and a large area of ​​​​falling off occurs. The rubber sheet can only be replaced manually on site, which is time-consuming and laborious. At the same time, workers must pay attention to safety during replacement to prevent being involved in the crawler gap. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a bottom plate protection device and a use method for a crawler-type jacking equipment to solve the problems raised in the background technology.

[0004] The main purpose of the present application is to provide a special bottom plate protection device for crawler-type jacking equipment, including:

[0005] A pushing device, the pushing device at least comprising a pushing cylinder and a crawler, the pushing cylinder serving as a driving force for driving the crawler to rotate;

[0006] The support components are arranged on both sides of the push-up device, and one of the support components is provided with a driving roller, and a servo drive motor is arranged on the side of the support component near the driving roller;

[0007] A friction drive wheel is arranged on the motor shaft of the servo drive motor, and the friction drive wheel and the friction driven wheel are pressed against each other to generate a set positive pressure to realize friction transmission, and the friction driven wheel and the active roller are arranged on the same rotating shaft;

[0008] A passive roller is arranged on the other bracket assembly;

[0009] The rubber protection belt is arranged along the upper and lower surfaces of the crawler track and is installed on the active roller and the passive roller on both sides of the crawler track respectively;

[0010] A cleaning and tensioning mechanism is arranged on a side close to the passive roller, through which the rubber protective belt passes, and through which the rubber protective belt is tensioned and cleaned;

[0011] Distance sensors are respectively arranged on both sides of the pushing cylinder, and the distance sensors are used to measure the pushing distance signal of the pushing cylinder in real time, and transmit the obtained pushing distance signal to the control system in real time. The control system obtains the pushing speed of the pushing cylinder based on the pushing distance signal, and adjusts the rotation rate of the servo drive motor according to the pushing speed so that the rubber protection belt automatically rotates synchronously with the crawler.

[0012] Furthermore, the support assembly arranged on one side of the active roller is a main support, and the main support is arranged on the right side of the crawler and is in the same horizontal position as the crawler;

[0013] The main support comprises a support body, on which a main shaft is arranged which passes from the outside of the support body to the inside, and the active roller is arranged on the main shaft and located inside the support body;

[0014] The support body on one side of the distal main shaft is fixed to the ejection device by bolts.

[0015] Furthermore, a group of bearing seats on the same axis are arranged on the support body, the main shaft is installed on the bearing seats, and a friction passive wheel is installed on the side of the support body and on the main shaft.

[0016] Furthermore, the bracket assembly arranged on one side of the passive roller is a passive bracket, and the passive bracket is arranged on the left side of the crawler and is in the same horizontal position as the crawler;

[0017] The passive support comprises a passive support body, on which a passive shaft is arranged to pass from the outside to the inside of the passive support body, and the passive roller is arranged on the passive shaft and located inside the passive support body;

[0018] The passive support body on one side of the far passive shaft is fixed on the ejection device by bolts.

[0019] Furthermore, a group of passive bearing seats on the same axis are arranged on the passive support body, and the passive shaft is mounted on the passive bearing seats.

[0020] Furthermore, the cleaning and tensioning mechanism includes at least one set of tensioning wheels, and the tensioning wheels are used for cleaning and tensioning the rubber protective belt.

[0021] Furthermore, the distance sensors arranged on both sides of the pushing cylinder are configured to only read the pushing distance signal when the pushing cylinder is extended, and not read the retraction distance signal when the cylinder is retracted.

[0022] Furthermore, the servo drive motor drives the friction drive wheel to rotate via the motor shaft, and the corresponding transmission ratio is set by setting the positive pressure between the friction drive wheel and the friction driven wheel, so that the friction driven wheel can rotate according to the set number of revolutions.

[0023] The present invention also provides a method for using a special bottom plate protection device for crawler-type jacking equipment, comprising the special bottom plate protection device for crawler-type jacking equipment described above, comprising the following steps:

[0024] The rubber protection belt is installed on the upper and lower surfaces of the crawler belt by means of bracket assemblies arranged on both sides of the push-up device, and a closed transmission rubber protection belt is formed around the crawler belt;

[0025] The push-up oil cylinder is used as the driving force for the crawler to rotate and drive the crawler to move. The push-up distance signal of the push-up oil cylinder is measured in real time by the distance sensors arranged at the upper and lower ends of the push-up oil cylinder.

[0026] The ejection distance signal is transmitted to a control system, and the control system obtains the ejection speed of the ejection cylinder based on the ejection distance signal, and adjusts the rotation rate of the servo drive motor according to the ejection speed so that the rubber protection belt automatically rotates synchronously with the crawler belt.

[0027] Furthermore, the control system calculates the pushing rate based on a set of pushing distance signals measured by distance sensors arranged at the upper and lower ends of the pushing cylinder, and can automatically adjust the rubber protection belt to follow the pushing speed and working conditions under different speeds and working conditions in real time.

[0028] The present invention has the following advantages:

[0029] Since the rubber protective belt described in the present application automatically rotates synchronously with the crawler belt, the rubber protective belt and the crawler belt can be started and stopped synchronously when the steel box girder is pushed up. The speed of the rubber protective belt can be automatically adjusted according to the pushing process and speed. On the one hand, the rubber protective belt is attached to the crawler belt to protect the coating of the steel box girder from being damaged. At the same time, the use of manpower is reduced through automated operations.

[0030] The rubber protective belt is made into a standard part, and the installation and replacement of the rubber protective belt is completed through the bracket assembly provided in this application. At the same time, the equipment has automatic cleaning and automatic tensioning functions to ensure the cleanliness and pre-tightening of the rubber protective belt and avoid damage to the paint surface of the box girder.

[0031] The present application realizes automatic sensing and automatic following, and the speed can be automatically changed according to the pushing speed, thereby reducing the external force on the rubber belt, increasing its service life, and saving costs.

[0032] When installing the jacking equipment, a special bottom plate protection device for crawler jacking equipment is installed at the same time. When the jacking equipment is working, the control system reads the distance change through the distance sensor installed on the jacking cylinder, and only reads the data when the jacking cylinder is extended. When the cylinder is retracted, the servo drive motor is set to not work. During the entire construction period, workers only need to observe the operating status of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the present invention;

[0034] Figure 2 It is a schematic diagram of the installation of a set of bracket components in the present invention;

[0035] Figure 3 It is a schematic diagram of the installation of the friction passive wheel and the friction driving wheel in the present invention.

[0036] The structural components of the present invention are as follows: 1 passive bracket, 2 passive roller, 3 rubber protection belt, 4 distance sensor, 5 active roller, 6 active bracket, 7 cleaning tensioning mechanism, 8 control system, 9 friction passive wheel, 10 friction driving wheel, 11 servo driving motor, 12 pushing device. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The present application discloses a bottom plate protection device for crawler-type jacking equipment, including a passive bracket 1, a passive roller 2, a rubber protection belt 3, an active bracket 6, an active roller 5, a servo drive motor 11, a friction drive wheel 10, a friction passive wheel 9, a distance sensor 4, a power supply, a control system, and a cleaning tensioning mechanism 7. The operation of the whole equipment can realize that the rubber protection belt automatically follows the jacking speed and working conditions under different speeds and different working conditions to adjust. The distance sensor is installed at both ends of the jacking cylinder to accurately measure the jacking speed in real time, and the drive motor speed is automatically calculated through these two data control components. The servo drive motor 11 is directly connected to the friction drive wheel 10, and the friction passive wheel 9 is driven by friction. The transmission mechanism can avoid damage caused by the error between the motor speed and the actual required speed, such as deformation of the rubber belt and burning of the motor due to overload. The passive bracket and the active bracket are bolted to the jacking equipment for easy disassembly and replacement; the passive roller is installed together with the passive bracket; the active roller is installed together with the active bracket, and the cleaning tensioning mechanism is installed behind the equipment for easy cleaning and tensioning.

[0039] Specifically, the main purpose of the present application is to provide a bottom plate protection device for crawler-type jacking equipment, including: a jacking device 12, the jacking device 12 at least including a jacking cylinder and a crawler, the jacking cylinder serving as a power to drive the crawler to rotate;

[0040] The support components are arranged on both sides of the push-up device, and a driving roller is arranged on one of the support components, and a servo drive motor 11 is arranged on the side of the support component near the driving roller;

[0041] A friction drive wheel 10 is arranged on the motor shaft of the servo drive motor 11. The friction drive wheel 10 and the friction driven wheel 9 are pressed against each other to generate a set positive pressure to realize friction transmission. The friction driven wheel 9 and the active roller 5 are arranged on the same rotating shaft.

[0042] A passive roller 2 is arranged on another bracket assembly;

[0043] The rubber protection belt 3 is arranged along the upper and lower surfaces of the crawler and is installed on the active roller 5 and the passive roller 2 on both sides of the crawler respectively;

[0044] A cleaning and tensioning mechanism 7 is arranged on the side near the passive roller, and the rubber protective belt passes through the cleaning and tensioning mechanism, and the rubber protective belt is tensioned and cleaned by the cleaning and tensioning mechanism; distance sensors are respectively arranged on both sides of the pushing cylinder, and the distance sensors are used to measure the pushing distance signal of the pushing cylinder in real time, and transmit the obtained pushing distance signal to the control system 8 in real time. The control system 8 obtains the pushing speed of the pushing cylinder based on the pushing distance signal, and adjusts the rotation rate of the servo drive motor according to the pushing speed so that the rubber protective belt automatically rotates synchronously with the crawler.

[0045] In the above, the support assembly arranged on one side of the active roller is the main support, the main support is arranged on the right side of the crawler and is in the same horizontal position as the crawler; the main support includes a support body, on which a main shaft is arranged that passes from the outside of the support body to the inside, the active roller is arranged on the main shaft and is located on the inside of the support body; the support body on the far side of the main shaft is fixed to the push-up device by bolts. Furthermore, a group of bearing seats on the same axis are arranged on the support body, the main shaft is installed on the bearing seat, and a friction passive wheel is installed on the side of the support body and on the main shaft.

[0046] In the above, the bracket assembly arranged on one side of the passive roller is a passive bracket, the passive bracket is arranged on the left side of the crawler and is in the same horizontal position as the crawler; the passive bracket includes a passive bracket body, a passive shaft passing from the outside to the inside of the passive bracket body is arranged on the passive bracket body, the passive roller is arranged on the passive shaft and is located on the inside of the passive bracket body; the passive bracket body on the side far from the passive shaft is fixed to the push-up device by bolts. A group of passive bearing seats on the same axis are arranged on the passive bracket body, and the passive shaft is installed on the passive bearing seat.

[0047] It should be noted that the main components of the support body are two parallel support beams, and a through hole for installing the bearing seat is opened on the side of the support beam. The bearing seat is installed in the through hole, and the two bearing seats are kept on the same axis. The support beam is installed on the front and rear sides of the push-up device, and the position is located on the front and rear sides of the track, and the main shaft is located on the right side of the track. Similarly, the passive shaft is located on the left side of the track, and the rubber protection belt is installed on the upper and lower surfaces of the track, and a closed transmission rubber protection belt is formed around the track through the active roller and the passive roller; on the one hand, the rubber protection belt is completely fitted with the track, and the rubber protection belt is made into a standard part, and the installation and replacement of the rubber protection belt is completed through the bracket assembly provided in this application.

[0048] In the above, the cleaning and tensioning mechanism includes at least one set of tensioning wheels, which are used for cleaning and tensioning the rubber protective belt. In this application, the equipment has automatic cleaning and automatic tensioning functions to ensure the cleanliness and pre-tensioning of the rubber protective belt and avoid staining of the box beam paint surface. In order to ensure that the cleaning work can be completed, a scraper is provided in the reserved space between a set of tensioning wheels, or a flushing water pipe is provided in the reserved space between a set of tensioning wheels. As for which method is adopted, it is set according to the specific implementation of this application.

[0049] In the above, the distance sensors arranged on both sides of the push-up oil cylinder are arranged to read only the push-up distance signal when the push-up oil cylinder is extended, and do not read the retraction distance signal when the oil cylinder is retracted. Specifically, by arranging an acquisition module in the control system, the acquisition module has a first acquisition unit and a second acquisition unit, wherein the first acquisition unit is configured to couple with the distance sensor arranged at one end of the push-up oil cylinder, and read the real-time push-up distance signal measured by the distance sensor arranged at one end of the push-up oil cylinder, and the second acquisition unit is configured to couple with the distance sensor arranged at the other end of the push-up oil cylinder, and read the real-time push-up distance signal measured by the distance sensor arranged at the other end of the push-up oil cylinder; the control module is arranged in the control system, and the control module is configured to couple to the first acquisition unit and the second acquisition unit, and shield the push-up distance signal that has been read by the first acquisition unit and the second acquisition unit when the oil cylinder is retracted through the reverse signal shielding unit arranged in the control module, and only read the push-up distance signal when the push-up oil cylinder is extended. It should be noted that the reverse signal shielding unit is also coupled with the first acquisition unit and the second acquisition unit respectively. When the pushing cylinder is extended, the reverse signal shielding unit is in a disconnected state from the first acquisition unit and the second acquisition unit. At this time, the control module can receive the read pushing distance signal in real time through the first acquisition unit and the second acquisition unit. When the cylinder retracts, the reverse signal shielding unit is in a connected state with the first acquisition unit and the second acquisition unit. At this time, the reverse signal shielding unit shields the pushing distance signal that has been read by the first acquisition unit and the second acquisition unit when the cylinder retracts.

[0050] It should be noted that in the present application, a preprocessing unit is also provided in the control module, and the preprocessing unit is used to receive a set of pushing distance signals that have been read by the first acquisition unit and the second acquisition unit, and to determine whether the pushing cylinder is extended or retracted through a set of pushing distance signals, and to control the reverse signal shielding unit and the signal reading and shielding reading of the first acquisition unit and the second acquisition unit through the judgment result of the preprocessing unit.

[0051] The servo drive motor drives the friction drive wheel to rotate through the motor shaft, and the corresponding transmission ratio is set by setting the positive pressure between the friction drive wheel and the friction driven wheel, so that the friction driven wheel can rotate according to the set number of revolutions. The transmission mechanism set in this way can avoid damage caused by the error between the motor speed and the actual required speed, such as deformation of the rubber belt and burning of the motor due to overload. At the same time, the transmission between the friction drive wheel and the friction driven wheel is maintained according to the set transmission ratio to form a stable output.

[0052] The present invention also provides a method for using a special bottom plate protection device for crawler-type jacking equipment, comprising the special bottom plate protection device for crawler-type jacking equipment described above, comprising the following steps:

[0053] The rubber protection belt is installed on the upper and lower surfaces of the crawler belt by means of bracket assemblies arranged on both sides of the push-up device, and a closed transmission rubber protection belt is formed around the crawler belt;

[0054] The push-up oil cylinder is used as the driving force for the crawler to rotate and drive the crawler to move. The push-up distance signal of the push-up oil cylinder is measured in real time by the distance sensors arranged at the upper and lower ends of the push-up oil cylinder.

[0055] The ejection distance signal is transmitted to a control system, and the control system obtains the ejection speed of the ejection cylinder based on the ejection distance signal, and adjusts the rotation rate of the servo drive motor according to the ejection speed so that the rubber protection belt automatically rotates synchronously with the crawler belt.

[0056] The control system calculates the ejection rate according to a set of ejection distance signals measured by distance sensors arranged at the upper and lower ends of the ejection oil cylinder, and can automatically adjust the rubber protection belt to follow the ejection speed and working conditions in real time under different speeds and working conditions.

[0057] In the above,

[0058] Since the rubber protective belt described in the present application automatically rotates synchronously with the crawler belt, the rubber protective belt and the crawler belt can be started and stopped synchronously when the steel box girder is pushed up. The speed of the rubber protective belt can be automatically adjusted according to the pushing process and speed. On the one hand, the rubber protective belt is attached to the crawler belt to protect the coating of the steel box girder from being damaged. At the same time, the use of manpower is reduced through automated operations.

[0059] The present application realizes automatic sensing and automatic following, and the speed can be automatically changed according to the pushing speed, thereby reducing the external force on the rubber belt, increasing its service life, and saving costs.

[0060] When installing the jacking equipment, a special bottom plate protection device for crawler jacking equipment is installed at the same time. When the jacking equipment is working, the control system reads the distance change through the distance sensor installed on the jacking cylinder, and only reads the data when the jacking cylinder is extended. When the cylinder is retracted, the servo drive motor is set to not work. During the entire construction period, workers only need to observe the operating status of the equipment.

[0061] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A special bottom plate protection device for crawler-type jacking equipment, characterized in that: include: A pushing device, the pushing device at least comprising a pushing cylinder and a crawler, the pushing cylinder serving as a driving force for driving the crawler to rotate; The support components are arranged on both sides of the push-up device, and one of the support components is provided with a driving roller, and a servo drive motor is arranged on the side of the support component near the driving roller; A friction drive wheel is arranged on the motor shaft of the servo drive motor, and the friction drive wheel and the friction driven wheel are pressed against each other to generate a set positive pressure to realize friction transmission, and the friction driven wheel and the active roller are arranged on the same rotating shaft; A passive roller is arranged on the other bracket assembly; The rubber protection belt is arranged along the upper and lower surfaces of the crawler track and is installed on the active roller and the passive roller on both sides of the crawler track respectively; A cleaning and tensioning mechanism is arranged on a side close to the passive roller, through which the rubber protective belt passes, and through which the rubber protective belt is tensioned and cleaned; Distance sensors are respectively arranged on both sides of the pushing cylinder, and the distance sensors are used to measure the pushing distance signal of the pushing cylinder in real time, and transmit the obtained pushing distance signal to the control system in real time. The control system obtains the pushing speed of the pushing cylinder based on the pushing distance signal, and adjusts the rotation rate of the servo drive motor according to the pushing speed so that the rubber protection belt automatically rotates synchronously with the crawler.

2. The bottom plate protection device for crawler-type jacking equipment according to claim 1 is characterized in that: The support assembly arranged on one side of the active roller is a main support, and the main support is arranged on the right side of the crawler and is in the same horizontal position as the crawler; The main support comprises a support body, on which a main shaft is arranged which passes from the outside of the support body to the inside, and the active roller is arranged on the main shaft and located inside the support body; The support body on one side of the distal main shaft is fixed to the ejection device by bolts.

3. The bottom plate protection device for crawler-type jacking equipment according to claim 2 is characterized in that: A group of bearing seats on the same axis are arranged on the support body, the main shaft is installed on the bearing seats, and a friction driven wheel is installed on the side of the support body and on the main shaft.

4. The bottom plate protection device for crawler-type jacking equipment according to claim 1 is characterized in that: The bracket assembly arranged on one side of the passive roller is a passive bracket, and the passive bracket is arranged on the left side of the crawler and is in the same horizontal position as the crawler; The passive support comprises a passive support body, on which a passive shaft is arranged which passes from the outside of the passive support body to the inside, and the passive roller is arranged on the passive shaft and located inside the passive support body; The passive support body on one side of the far passive shaft is fixed on the ejection device by bolts.

5. The bottom plate protection device for crawler-type jacking equipment according to claim 4 is characterized in that: A group of passive bearing seats on the same axis are arranged on the passive support body, and the passive shaft is installed on the passive bearing seats.

6. The bottom plate protection device for crawler-type jacking equipment according to claim 1 is characterized in that: The cleaning and tensioning mechanism comprises at least one set of tensioning wheels, and the tensioning wheels are used for cleaning and tensioning the rubber protective belt.

7. The bottom plate protection device for crawler-type jacking equipment according to claim 1 is characterized in that: The distance sensors arranged on both sides of the pushing oil cylinder are arranged to only read the pushing distance signal when the pushing oil cylinder is extended, and not read the retraction distance signal when the oil cylinder is retracted.

8. The bottom plate protection device for crawler-type jacking equipment according to claim 1 is characterized in that: The servo drive motor drives the friction drive wheel to rotate via the motor shaft, and the corresponding transmission ratio is set by setting the positive pressure between the friction drive wheel and the friction driven wheel, so that the friction driven wheel can rotate according to the set number of revolutions.

9. A method for using a special bottom plate protection device for crawler-type jacking equipment, comprising the special bottom plate protection device for crawler-type jacking equipment according to any one of claims 1 to 8, characterized in that: The steps include: The rubber protection belt is installed on the upper and lower surfaces of the crawler belt by means of bracket assemblies arranged on both sides of the push-up device, and a closed transmission rubber protection belt is formed around the crawler belt; The push-up oil cylinder is used as the driving force for the crawler to rotate and drive the crawler to move. The push-up distance signal of the push-up oil cylinder is measured in real time by the distance sensors arranged at the upper and lower ends of the push-up oil cylinder. The ejection distance signal is transmitted to a control system, and the control system obtains the ejection speed of the ejection cylinder based on the ejection distance signal, and adjusts the rotation rate of the servo drive motor according to the ejection speed so that the rubber protection belt automatically rotates synchronously with the crawler belt.

10. The method for using the bottom plate protection device for crawler-type jacking equipment according to claim 9, characterized in that: The control system calculates the ejection rate according to a set of ejection distance signals measured by distance sensors arranged at the upper and lower ends of the ejection oil cylinder, and can automatically adjust the rubber protection belt to follow the ejection speed and working conditions in real time under different speeds and working conditions.

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