Self-propelled hydraulic riveting pump station

Abstract

The application discloses a self-propelled hydraulic riveting pump station, which comprises a moving platform, a hydraulic power system and a control system. The moving platform comprises two groups of moving tracks and platforms which are independently driven by hydraulic motors. The hydraulic power system is arranged on the moving platform and comprises a riveting hydraulic power system and a driving hydraulic power system. The riveting hydraulic power system and the driving hydraulic power system comprise eight hydraulic pumps which are directly driven by the same engine. Two hydraulic pumps are connected in parallel to supply oil to a hydraulic motor of a driving oil circuit to drive a moving track. Two hydraulic pumps are connected in parallel to a hydraulic motor through an electromagnetic reversing valve and a driving oil circuit to enhance oil supply. The other group is the same. The control system comprises a wireless driving control system and an electric control system. The application meets various requirements of walking and riveting, can provide power for riveting of short tail type pull rivets, pull-off type pull rivets and the like, and is safe and reliable.

Description

Technical Field

[0001] This invention belongs to the field of riveting and fastening technology, and particularly to the field of riveting and fastening equipment design and manufacturing technology. It specifically relates to a hydraulic equipment technology for rivet fastening connection, belonging to the riveting category (B21J), and is a hydraulic riveting pump station for a self-propelled tracked vehicle with a dual riveting circuit. Background Technology

[0002] With the increasing demands for fastener connection performance in modern mechanical products, equipment, high-speed trains, bridge construction, and aerospace research and development, riveting technology has become the preferred mechanical connection solution in the world today due to its reliable connection, light weight, low cost, and simple process.

[0003] Blind rivets are fasteners invented using Hooke's Law and the principle of unidirectional tension to prevent loosening. They are a collective term for rivets and collars. A rivet is equivalent to a bolt in a bolted connection, the main difference being that a rivet does not have a threaded groove, but rather a series of annular grooves. A collar is equivalent to a nut in a bolted connection, the main difference being that the inner surface of a collar has no internal threads, but is a smooth surface. During installation, specialized riveting equipment forces the metal material of the collar into the annular grooves of the rivet, thus achieving a permanent connection. Blind rivets also have advantages such as good vibration resistance, strong impermeability, high connection strength, convenient inspection, effective prevention of loosening of components during vibration, and long-term maintenance-free operation.

[0004] Rivets are simple to install, highly efficient, and perform excellently. Besides aerospace, they are widely used in high-speed rail vehicles, wind power, nuclear power, heavy-duty vehicles, mining machinery, steel structures, and bridge construction. This has led to increasingly complex and diverse application scenarios, and consequently, more complex and diverse application scenarios for riveting equipment. In these new application areas, riveting assembly is often done outdoors or in non-fixed-station environments. To address energy issues during riveting, indoor non-fixed-station operations place the hydraulic riveting pump station on the ground, using long oil pipes to connect the riveting tools to the pump station. Outdoor operations use generators to power the hydraulic riveting pump station. When encountering outdoor non-fixed-station operations (such as riveting operations at solar power plants), the generator, hydraulic riveting pump, or diesel / gasoline hydraulic riveting pump station needs to be placed on a freight car, constantly moving with the riveting location, requiring drivers, mechanics, electricians, and other support personnel, resulting in high costs. These factors contribute to the high cost of riveting installation, hindering the widespread application of rivets in new fields. During the riveting process, due to the different specifications of the rivets and the different loads on the riveting tools, existing electric riveting tools are difficult to maintain high riveting efficiency with a small motor under different loads, which easily leads to energy waste. Under heavy loads, electric riveting tools are unable to provide sufficient riveting force. Therefore, there is an urgent need for a hydraulic riveting pump station that can travel long distances on its own, adapt to complex terrains, is simple and convenient to operate, and does not require additional power generation facilities. Summary of the Invention

[0005] This invention discloses a self-propelled hydraulic riveting pump station to address the shortcomings of existing technologies. The purpose of this invention is to provide a self-propelled tracked vehicle hydraulic riveting pump station with a dual riveting circuit. This hydraulic riveting pump station can move long distances on its own, adapt to complex terrain, is simple and convenient to operate, requires no additional power generation facilities, has a compact structure, and is safe and reliable. It can solve the existing demand for self-propelled mobile hydraulic riveting pump stations for outdoor operations, reduce operating costs, facilitate outdoor operations, and improve work efficiency.

[0006] The present invention adopts the following technical solution:

[0007] A self-propelled hydraulic riveting pump station, characterized in that it includes a mobile platform, a hydraulic power system, and a control system;

[0008] The mobile platform is a tracked remote-controlled mobile mechanism, comprising two sets of mobile tracks driven independently by hydraulic motors and a carrier platform they support;

[0009] The hydraulic power system is installed on the mobile platform and includes a riveting hydraulic power system and a drive hydraulic power system. The riveting hydraulic power system and the drive hydraulic power system include eight hydraulic pumps directly driven by the same engine. Among them, hydraulic pump 1 and hydraulic pump 2 are connected in parallel to supply oil to hydraulic motor 1 of drive oil circuit 1, hydraulic pump 3 and hydraulic pump 4 are connected in parallel to supply oil to hydraulic motor 2 of drive oil circuit 2, drive oil circuit 1 and drive oil circuit 2 operate independently, hydraulic motor 1 drives one track, and hydraulic motor 2 drives another track. Hydraulic pump 5 and hydraulic pump 6 are connected in parallel and then connected in parallel with drive oil circuit 1 via a two-position three-way solenoid valve 1 to enhance the oil supply to hydraulic motor 1. At the same time, after being switched by the two-position three-way solenoid valve 1, they supply oil to hydraulic riveting gun 1 of riveting oil circuit 1. Hydraulic pump 7 and hydraulic pump 8 are connected in parallel and then connected in parallel with drive oil circuit 2 via a two-position three-way solenoid valve 2 to enhance the oil supply to hydraulic motor 2. At the same time, after being switched by the two-position three-way solenoid valve 2, they supply oil to hydraulic riveting gun 2 of riveting oil circuit 2.

[0010] The control system includes a wireless drive control system and an electronic control system. The wireless drive control system is a wireless control operating mechanism composed of wireless signal transmitting and receiving devices. The electronic control system includes a riveting electronic control system and a drive electronic control system. The riveting electronic control system is connected to the riveting hydraulic power system to realize riveting control, and the drive electronic control system is connected to the drive hydraulic power system to realize platform movement control.

[0011] The hydraulic motor one is connected to the drive oil circuit one via a three-position four-way solenoid directional valve one with manual adjustment function for drive control; the hydraulic motor two is connected to the drive oil circuit two via a three-position four-way solenoid directional valve two with manual adjustment function for drive control; each drive oil circuit is equipped with an overflow valve.

[0012] The hydraulic riveting gun one is driven and controlled by the riveting oil circuit one through the three-position four-way solenoid valve one; the hydraulic riveting gun two is driven and controlled by the riveting oil circuit two through the three-position four-way solenoid valve two; each riveting oil circuit is equipped with a pressure relay and can be detachably connected through a quick-connect coupling.

[0013] The drive electronic control system switches the drive oil circuit by controlling a three-position four-way solenoid directional valve with manual adjustment function, thereby controlling the hydraulic motor to rotate forward and reverse, and driving the track to move forward and backward. The drive electronic control system also controls the flow of the drive oil circuit and the rotation speed of the hydraulic motor by controlling the engine throttle or ignition switch, thereby controlling the track movement speed. The drive electronic control system controls the drive oil circuits of the two hydraulic motors separately, and achieves differential control of the hydraulic motors by controlling the three-position four-way solenoid directional valve with manual adjustment function on the two drive oil circuits respectively, thereby achieving movement control of the track in the left and right directions and other angular sub-directions.

[0014] The riveting electronic control system controls the riveting oil circuit drive switching by controlling the two-position three-way solenoid directional valve and the three-position four-way solenoid directional valve, and controls the hydraulic riveting tool to realize riveting and unriveting operations.

[0015] The pressure relay is connected to the riveting electrical control system and is used to detect the piston reset state of the rod-side and rodless sides of the riveting tool and then send a signal to release pressure and put the system back into standby mode.

[0016] The eight hydraulic pumps are either piston hydraulic pumps or gear hydraulic pumps; the piston hydraulic pump heads are distributed in a single plane or multiple planes in parallel, and the output structure adopts a horizontal axis output structure or a vertical axis output structure. The hydraulic pumps of this invention are immersed in the hydraulic oil tank via an integrated valve block, which is directly connected to the hydraulic oil tank and the hydraulic valve assembly.

[0017] The control system is also equipped with a safety protection system, which includes a manual emergency stop device and a wireless emergency stop device, as well as alarm lights and fire extinguishers. The safety protection system includes two sets of three-position four-way solenoid directional valves with manual adjustment function, which are used to perform emergency reversing operation to move and turn the tracked mobile platform when the system loses power.

[0018] Each oil circuit of the riveting hydraulic power system and the drive hydraulic power system of the hydraulic power system is equipped with a filter; the filter can be built-in or external, and the filter precision includes coarse filter and fine filter, which are used to filter oil impurities and protect pump station equipment.

[0019] The wireless control mechanism includes a display screen, a wireless signal transmitter and receiver, and a wireless controller consisting of battery components; the battery components include a rechargeable assembly consisting of a battery, a solar panel, and a charging interface.

[0020] The beneficial effects of this invention are as follows:

[0021] The hydraulic riveting pump station for tracked vehicles with a double riveting circuit developed in this invention can be used not only for fasteners with pull-out blind riveting, but also for non-pull-out short-tail rivets, repeatable rivets and other product types, meeting the needs of various products.

[0022] This invention relates to a hydraulic riveting pump station that utilizes self-propelled tracks, enabling it to traverse complex terrain and climb slopes up to 55 degrees. The equipment is simple and convenient to operate, requires no additional power generation facilities, has a compact structure, and is safe and reliable. It addresses the existing need for self-propelled mobile hydraulic riveting pump stations for outdoor operations, while also reducing operating costs, facilitating outdoor work, and improving work efficiency.

[0023] This invention develops a hydraulic riveting pump station for a tracked vehicle with a dual riveting circuit. It employs a dual riveting circuit, supporting riveting operations with a single riveting gun or simultaneous riveting operations with two riveting guns. The equipment utilizes wireless drive control, enabling movement control of the hydraulic riveting pump station in four main directions (forward, backward, left, and right) and other secondary directions with fast response and minimal latency. It also provides remote one-button start, one-button stop, wireless emergency stop, and one-button locking and unlocking functions.

[0024] The hydraulic riveting pump station of this invention uses a gasoline engine, diesel engine or other types of engine directly connected to a hydraulic pump via an eccentric shaft. The hydraulic pump is fully immersed in the hydraulic oil tank through an integrated valve block. The integrated valve block is directly connected to the hydraulic oil tank and hydraulic valve group, reducing the use of couplings and other structures, making the overall equipment have fewer parts, a more compact structure, lighter weight and higher reliability.

[0025] In this invention, heavy structural components such as the engine, hydraulic pump, integrated block, and oil tank are arranged at the center of gravity of the mobile tracked transport platform, which improves the stability of the whole machine during movement and its ability to pass through complex terrain. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the hydraulic power system according to an embodiment of the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram of an embodiment of the self-hydraulic riveting pump station of the present invention;

[0028] Figure 3 This is a three-dimensional structural schematic diagram of another embodiment of the self-hydraulic riveting pump station of the present invention;

[0029] Figure 4 This is a schematic diagram of the internal three-dimensional structure of an embodiment of the self-hydraulic riveting pump station of the present invention;

[0030] Figure 5 This is a schematic diagram of the internal structure of a self-hydraulic riveting pump station embodiment of the present invention from another perspective;

[0031] Figure 6 This is a schematic diagram of the arrangement of three sets of hydraulic pump heads for the self-hydraulic riveting pump station of the present invention;

[0032] Figure 7 This is a schematic diagram of the arrangement of six sets of hydraulic pump heads for the self-hydraulic riveting pump station of the present invention;

[0033] Attached reference numerals: 1 is hydraulic pump, 2 is two-position three-way solenoid directional valve, 3 is relief valve, 4 is pressure regulating valve, 5 is three-position four-way solenoid directional valve, 6 is three-position four-way solenoid directional valve, 7 is quick-connect coupling, 8 is pressure relay, 9 is hydraulic riveting gun, 10 is hydraulic motor, 11 is self-propelled track, 12 is pump station support frame, 13 is alarm signal light, 14 is auxiliary oil tank, 15 is storage frame, 16 is electrical control box, 17 is vehicle-mounted fire extinguisher, 18 is battery, 19 is engine, 20 is integrated valve block, 21 is hydraulic oil tank, 22 is oil tank, 23 is plunger pump head, 24 is eccentric bearing;

[0034] 1.1 Hydraulic pump one, 1.2 Hydraulic pump two, 1.3 Hydraulic pump three, 1.4 Hydraulic pump four, 1.5 Hydraulic pump five, 1.6 Hydraulic pump six, 1.7 Hydraulic pump seven, 1.8 Hydraulic pump eight; 2.1 Two-position three-way solenoid directional valve one, 2.2 Two-position three-way solenoid directional valve two; 3.1 Relief valve one, 3.2 Relief valve two, 3.3 Relief valve three, 3.4 Relief valve four; 4.1 Pressure regulating valve one, 4.2 Pressure regulating valve two; 5.1 Three-position four-way solenoid directional valve one with manual adjustment function, 5.2 Three-position four-way solenoid directional valve two with manual adjustment function; 6.1 Three-position four-way solenoid directional valve one, 6.2 Three-position four-way solenoid directional valve two; 9.1 Hydraulic riveting gun one, 9.2 Hydraulic riveting gun two; 10.1 Hydraulic motor one, 10.2 Hydraulic motor two. Detailed Implementation

[0035] The present invention will be further described below with reference to specific embodiments. These specific embodiments are further explanations of the principles of the present invention and are not intended to limit the present invention in any way. Any technology that is the same as or similar to the present invention does not exceed the scope of protection of the present invention.

[0036] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "longitudinal," "lateral," "horizontal," "inner," "outer," "front," "rear," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] Refer to the attached diagram.

[0039] The present invention relates to a hydraulic riveting pump station for a tracked vehicle with a dual riveting circuit, comprising a mobile platform, a hydraulic power system, and a control system;

[0040] The mobile platform is a tracked remote-controlled mobile mechanism, comprising two sets of mobile tracks driven independently by hydraulic motors and a carrier platform they support;

[0041] The hydraulic power system is installed on the mobile platform and includes a riveting hydraulic power system and a drive hydraulic power system. Both the riveting and drive hydraulic power systems consist of eight hydraulic pumps directly driven by the same engine. Hydraulic pump one and hydraulic pump two are connected in parallel to supply oil to hydraulic motor one in drive circuit one; hydraulic pump three and hydraulic pump four are connected in parallel to supply oil to hydraulic motor two in drive circuit two; drive circuit one and drive circuit two operate independently; hydraulic motor one drives one track, and hydraulic motor two drives another track; hydraulic pump five and hydraulic pump six are connected in parallel and then connected in parallel with drive circuit one via a two-position three-way solenoid valve one to enhance the oil supply to hydraulic motor one; simultaneously, after being switched by the two-position three-way solenoid valve one, they supply oil to riveting circuit one; hydraulic pump seven and hydraulic pump eight are connected in parallel and then connected in parallel with drive circuit two via a two-position three-way solenoid valve two to enhance the oil supply to hydraulic motor two; simultaneously, after being switched by the two-position three-way solenoid valve two, they supply oil to riveting circuit two.

[0042] The control system includes a wireless drive control system and an electronic control system. The wireless drive control system is a wireless control operating mechanism composed of wireless signal transmitting and receiving devices. The electronic control system includes a riveting electronic control system and a drive electronic control system. The riveting electronic control system is connected to the riveting hydraulic power system to realize riveting control, and the drive electronic control system is connected to the drive hydraulic power system to realize platform movement control.

[0043] The wireless control mechanism includes a wireless controller composed of components such as a display screen, a wireless signal transmitting and receiving device, and a battery.

[0044] The electrical control system includes a riveting electrical control system and a drive electrical control system. The riveting electrical control system, the drive electrical control system, and the electrical control cabinet, along with the main power switch, indicator lights, and other electrical components, together constitute the electrical control system.

[0045] The hydraulic power system is divided into a riveting hydraulic power system and a drive hydraulic power system. Both systems are directly driven by the same gasoline engine, diesel engine or other types of engine. The two systems are independent of each other, but also interconnected.

[0046] The control system is also equipped with a safety protection system, including an emergency stop device, a wireless emergency stop device, alarm lights, fire extinguishers and other safety protection devices; the mobile platform includes self-propelled tracks driven by hydraulic motors, a pump station support frame, detachable storage racks, etc.

[0047] The wireless drive control system can directly control the movement of the hydraulic riveting pump station of the double riveting circuit tracked vehicle in four main directions (front, back, left, and right) and other secondary directions via a wireless controller. It has a fast response speed and low latency. At the same time, it can realize remote one-key start, one-key shutdown, wireless emergency stop, and one-key locking and unlocking functions for the equipment.

[0048] The wireless drive control system also includes components such as batteries, solar panels, and charging interfaces. Its wireless controller achieves ultra-long battery life and can be charged in real time via solar panels. When the battery is too low, it can also be directly charged via the charging interface.

[0049] The wireless control mechanism of the wireless drive control system is equipped with a display that can show in real time information such as the running time, mileage, wireless control signal strength, and controller power of the hydraulic riveting pump station of the dual riveting circuit tracked vehicle.

[0050] The wireless drive control system has a wireless control distance of over 100 meters. Within 100 meters, it can achieve fast control response and low latency.

[0051] The wireless drive control system features a lightweight, small, and compact wireless controller that can be operated by a single person. It also boasts IPX6-level waterproof and dustproof capabilities.

[0052] The electrical control system includes a riveting electrical control system and a drive electrical control system. The riveting electrical control system comprises integrated circuits, control chips, pressure relays, and other electrical components. It controls the riveting oil circuit switching via a two-position three-way solenoid directional valve and a three-position four-way solenoid directional valve, controlling the hydraulic riveting tool to perform riveting and unriveting functions. It also allows for single-button control of the hydraulic riveting system using the riveting tool. The drive electrical control system comprises an electric starter, a wireless signal transmitter and receiver, a drive control chip, and other electrical components. It can receive signals from the wireless drive control system or directly receive signals from the equipment control elements, enabling movement control of the equipment in the four main directions (forward, backward, left, and right) and other secondary angular directions.

[0053] The pressure relay of the riveting electrical control system is used to send a signal to release pressure and put the system back into standby mode after the piston in the rod-side and rodless-side chambers of the riveting tool has been reset.

[0054] The drive electronic control system switches the drive oil circuit by controlling a three-position four-way solenoid directional valve, thereby controlling the hydraulic motor to rotate forward and reverse, driving the track to achieve the equipment's forward and backward driving functions. At the same time, the drive electronic control system controls the flow rate of the drive oil circuit by controlling the engine throttle or ignition switch, thereby controlling the rotation speed of the hydraulic motor and achieving functions such as controlling the equipment's movement speed.

[0055] The drive control system can control the drive oil circuits of the two hydraulic motors separately. By controlling the switching of the three-position four-way solenoid directional valves on the two drive oil circuits respectively, differential control of the hydraulic motors can be realized, thereby realizing the movement control of the equipment in the left and right main directions and other angular secondary directions.

[0056] The hydraulic power system is subdivided into a riveting hydraulic power system and a drive hydraulic power system. Each system uses two sets of oil circuits, which are independent of each other. Both systems are equipped with filters. These filters can be built-in or external, and their filtration precision can range from coarse to fine, effectively filtering impurities from the oil and protecting the pump station equipment.

[0057] The hydraulic power system is directly driven by the same gasoline engine, diesel engine or other type of engine, which drives eight hydraulic pumps. Each hydraulic pump is fully immersed in oil in the tank. Hydraulic pump one and hydraulic pump two are connected in parallel to supply oil to hydraulic motor one of drive circuit one. Hydraulic pump three and hydraulic pump four are connected in parallel to supply oil to hydraulic motor two of drive circuit two. Drive circuit one and drive circuit two are not connected to each other and operate independently. Hydraulic pumps five and six are connected in parallel and then connected to hydraulic pumps one and two via a two-position three-way solenoid directional valve one. This allows them to supply oil to hydraulic motor one in drive circuit one, increasing oil supply and improving the equipment's moving speed and driving force. Alternatively, after being switched via the two-position three-way solenoid directional valve one, they can supply oil to riveting circuit one independently to drive riveting tools. Hydraulic pumps seven and eight are connected in parallel and then connected to hydraulic pumps three and four via a two-position three-way solenoid directional valve two. This allows them to supply oil to hydraulic motor two in drive circuit two, and also, after being switched via the two-position three-way solenoid directional valve two, they can supply oil to riveting circuit two independently.

[0058] The eight hydraulic pumps are of the type such as piston hydraulic pumps or gear hydraulic pumps, with the piston hydraulic pump heads distributed on a single plane or multiple planes connected in parallel. Their output structure employs either a horizontal axis output structure or a vertical axis output structure.

[0059] The riveting hydraulic power system adopts two sets of riveting hydraulic circuits. Each circuit is supplied with oil by two hydraulic pumps in parallel, which can support riveting operations with one riveting gun or riveting operations with two riveting guns at the same time.

[0060] The input ends of hydraulic pumps five and six in the riveting hydraulic power system are connected to filters to draw oil from the main oil tank. After the output oil circuits are connected in parallel, they are directly connected to two-position three-way solenoid directional valve one, safety valve one, pressure gauge one, and pressure regulating valve one. After passing through two-position three-way solenoid directional valve one (reversed), they are directly connected to the input end of three-position four-way solenoid directional valve one. After passing through three-position four-way solenoid directional valve one, they are connected to pressure relay one and riveting tool one. After passing through two-position three-way solenoid directional valve one (not reversed), they are connected in parallel with the output ends of hydraulic pump one and hydraulic pump two to supply oil to drive oil circuit one. Similarly, the oil circuit connections of hydraulic pump seven and hydraulic pump eight are similar.

[0061] The input ends of hydraulic pump one and hydraulic pump two, which drive the hydraulic power system, are respectively connected to filters to draw oil from the main oil tank. After the output oil circuits are connected in parallel, they are directly connected to the output ends of three-position four-way solenoid valve one with manual adjustment function, safety valve four, pressure gauge three, and two-position three-way solenoid valve one. After passing through three-position four-way solenoid valve one with manual adjustment function, they are connected to hydraulic motor one. Similarly, the oil circuit connections of hydraulic pump three and hydraulic pump four are similar.

[0062] The safety protection system is equipped with both an emergency stop device and a wireless emergency stop device. The emergency stop device allows for direct emergency stop control, while the wireless emergency stop device provides an instant emergency stop command. The equipment also features alarm lights that issue an alarm to alert the user in case of equipment failure, and includes fire extinguishers and other safety protection devices. The safety protection system also includes a three-position four-way solenoid directional valve with manual adjustment, enabling emergency reversing of the tracked vehicle's movement and steering in the event of a power outage.

[0063] The mobile platform is a self-propelled tracked vehicle driven by a hydraulic motor. The tracks are distributed on both sides of the hydraulic riveting pump station support frame. The hydraulic riveting pump station support frame is fully covered by partitions, concealing the electrical control system, hydraulic power system, and safety protection system within the support frame. Ventilation grilles are installed on the four side partitions of the support frame, and lifting rings are installed on the four corner support columns. Pressure gauges and doors are installed on the front and rear side partitions of the support frame. The pressure gauges allow for real-time monitoring of the riveting oil circuit 1 and 2, and the drive oil circuit 1 and 2. The doors also allow for inspection, maintenance, and repair of the electrical control system, hydraulic power system, and safety protection system inside the support frame. Additionally, a detachable storage rack, direct drive control elements, and an auxiliary oil tank are embedded on the upper part of the support frame partitions.

[0064] The mobile platform can navigate complex terrain and has a maximum climbing angle of 55 degrees. Meanwhile, the hydraulic riveting pump station support frame adopts a full-partition covering design, enabling the entire equipment to achieve IPX3 waterproof rating.

[0065] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0066] like Figure 1The diagram shown is a schematic of the hydraulic power system. As shown, there are two sets of hydraulic circuits: one for riveting and one for driving. Riveting circuit one and riveting circuit two are not connected and do not affect each other. Driving circuit one and driving circuit two are also not connected and do not affect each other. However, driving circuit one is connected to riveting circuit one, and driving circuit two is connected to riveting circuit two.

[0067] Specifically, taking the drive oil circuit 1 and the riveting oil circuit 1 as examples, the drive oil circuit 1 consists of two hydraulic pumps 1, namely hydraulic pump 1.1 and hydraulic pump 2.2, which directly provide hydraulic power to the hydraulic motor 10.1. The riveting oil circuit 1 consists of two hydraulic pumps 1, namely hydraulic pump 5.5 and hydraulic pump 6.6, which directly provide hydraulic power to the riveting gun 9.1 via a two-position three-way solenoid directional valve 2.1 (when reversing). Alternatively, they can be connected in parallel to the drive oil circuit 1 via a two-position three-way solenoid directional valve 2.1 (when not reversing), together with hydraulic pumps 1.1 and 2.2, to provide hydraulic power to the hydraulic motor 10.1, increasing the flow supply and improving the travel speed. The drive oil circuit 2 is similar to the riveting oil circuit 2.

[0068] Specifically, hydraulic pump 1.1 and hydraulic pump 2.2 draw oil from oil tank 21 at their input ends, and their output ends are connected in parallel to the output end of two-position three-way solenoid directional valve 2.1, the input end of relief valve 3.4 (which serves as a safety valve), and the input end of three-position four-way solenoid directional valve 5.1 (which has a manual adjustment function). The relief valve 3.4 (which serves as a safety valve) is used to protect drive oil circuit 1 and limit its maximum operating pressure. It is then directly connected to hydraulic motor 10.1 via three-position four-way solenoid directional valve 5.1 (which has a manual adjustment function). The other set of hydraulic pumps 1.3 and 1.4 have the same oil circuit connection, but the two sets of oil circuits are not connected and each forms its own hydraulic oil circuit. Hydraulic pumps 1.5 and 1.6 draw oil from tank 21 at their input ends. Their output ends are connected in parallel to the input ends of two-position three-way solenoid directional valve 2.1, the input end of relief valve 3.1 (acting as a safety valve), and the input end of pressure regulating valve 4.1. Relief valve 3.1, acting as a safety valve, protects riveting oil circuit 1 and limits its maximum operating pressure. Pressure regulating valve 4.1 adjusts the real-time operating pressure of riveting oil circuit 1 after the two-position three-way solenoid directional valve 2.1 reverses direction. Then, via the two-position three-way solenoid directional valve 2.1 (during reversal), it connects to three-position four-way solenoid directional valve 6. 1. Then, the hydraulic riveting gun is connected to the hydraulic riveting gun 9.1 via a three-position four-way solenoid directional valve 6.1. At the same time, a pressure relay 8 is configured to send a signal to release pressure and restart the system after the piston in the rod-side and rodless-side chambers of the hydraulic riveting gun is reset. 2. The hydraulic pump 1.1 and hydraulic pump 2.2 are connected in parallel to the output terminals of the two-position three-way solenoid directional valve 2.1 (when not reversed). The hydraulic motor 10.1 is then directly connected to the three-position four-way solenoid directional valve 5.1 with manual adjustment function. The oil circuits of the other set of hydraulic pumps 7.1.7 and 8.1.8 are the same, but the two sets of oil circuits are not connected and each forms its own hydraulic oil circuit.

[0069] Specifically, the working process of the hydraulic riveting pump station of this double riveting circuit tracked vehicle is as follows: turn on the main power switch of the equipment's electrical control system and the wireless controller switch. The wireless controller automatically connects to the equipment. Press the start button of the wireless controller, and the equipment engine 19 starts, driving the 8 hydraulic pumps 1 to run. The hydraulic oil returns directly to the oil tank 21 through the three-position four-way solenoid valve 5.1 with manual adjustment function and the three-position four-way solenoid valve 5.2 with manual adjustment function in the middle position.

[0070] Specifically, according to the working conditions, the working process of the hydraulic riveting pump station of the double riveting circuit tracked vehicle is further subdivided into three types: The first type involves the equipment only moving and not riveting. At this time, the oil from all eight hydraulic pumps 1 supplies the drive oil circuit. Pressing the forward movement button on the wireless controller energizes the left solenoid 4DT of the three-position four-way solenoid valve 1 (5.1) and the left solenoid 9DT of the three-position four-way solenoid valve 2 (5.2), switching to the left position. Hydraulic motors 1 (10.1) and 2 (10.2) rotate in the forward direction, and the equipment moves forward. Releasing the forward movement button de-energizes solenoids 4DT and 9DT, switching to the middle position. The hydraulic oil returns directly to the oil tank 21, and hydraulic motors 1 (10.1) and 2 (10.2) stop rotating, keeping the equipment in its original position. Pressing the left movement button on the wireless controller... Turn the button. With the three-position four-way solenoid valve 5.1 in the neutral position (manual adjustment function), the left solenoid 9DT of the two-position four-way solenoid valve 5.2 is energized and switched to the left position. Hydraulic motor 10.1 stops rotating, while hydraulic motor 20.2 rotates forward, causing the equipment to rotate to the left. Releasing the left-turn button de-energizes the left solenoid 9DT, and the two-position four-way solenoid valve 5.2 switches to the neutral position. Hydraulic oil returns directly to the oil tank 21, and both hydraulic motors 10.1 and 20.2 stop rotating, keeping the equipment in its original position. Similarly, pressing the wireless controller's forward movement button works similarly to the right-turn button.

[0071] Specifically, the second type of equipment does not move, only performs riveting operations. Pressing the lock button for this working mode will keep the left and right electromagnets of the manually adjustable three-position four-way solenoid valve 5.1 and the manually adjustable three-position four-way solenoid valve 5.2 in both drive oil circuits one and two de-energized, and the solenoid valves will remain in the neutral position. The drive oil will return directly to the oil tank 21, preventing accidental movement of the equipment due to accidental activation of the movement button. Simultaneously, the left electromagnet 1DT of the two-position three-way solenoid valve 2.1 in riveting oil circuit one will be energized and switched to the left position. The oil from hydraulic pumps 1.5 and 1.6, after passing through the two-position three-way solenoid valve 2.1, will no longer flow into drive oil circuit one, but will instead return directly to the oil tank 21 through the three-position four-way solenoid valve 6.1. The same applies to riveting oil circuit two. Pressing the button on hydraulic riveting gun 9.1 energizes the left solenoid 2DT of the three-position four-way solenoid valve 6.1, switching it to the left position. Oil flows through the three-position four-way solenoid valve 6.1 and into hydraulic riveting gun 9.1, driving it to operate. Releasing the button on hydraulic riveting gun 9.1 energizes the right solenoid 3DT of the three-position four-way solenoid valve 6.1, switching it to the right position. Hydraulic riveting gun 9.1 begins to reset. When it reaches the end of its stroke, pressure relay 8 detects that the oil pressure has risen to the set value and sends a signal. Both the left solenoid 2DT and the right solenoid 3DT of the three-position four-way solenoid valve 6.1 are de-energized. Oil from hydraulic pumps 1.5 and 1.6 flows back to oil tank 21 through the middle position of the three-position four-way solenoid valve 6.1, unloading the riveting oil circuit and allowing it to run unloaded. Similarly, the working principle of hydraulic riveting gun 2 is the same, and hydraulic riveting gun 1 9.1 and hydraulic riveting gun 2 9.2 can work simultaneously or independently without affecting each other.

[0072] Specifically, the third type of equipment performs riveting operations while moving. Pressing the lock button for this working mode energizes the left solenoid 1DT of the two-position three-way solenoid valve 2.1 in riveting oil circuit one, switching it to the left position. The hydraulic pumps 1.5 and 1.6, after passing through the two-position three-way solenoid valve 2.1, no longer flow into drive oil circuit one, but instead return directly to the oil tank 21 via the three-position four-way solenoid valve 2.1. The same applies to riveting oil circuit two. Simultaneously, the left and right solenoids of the three-position four-way solenoid valve 5.1 and 5.2 with manual adjustment functions in drive oil circuits one and two will no longer remain de-energized, but will switch directions according to the energization and de-energization signals of the movement button. However, its travel speed will be lower than in the first working mode under the same working conditions. The working principle of the hydraulic riveting gun 9 is the same as in the second working mode, and will not be repeated here.

[0073] Specifically, after the equipment completes its work, press the wireless controller shutdown button to stop the equipment engine 19, turn off the main power switch of the equipment's electrical control system and the wireless controller switch, and complete the entire equipment operation process.

[0074] Specifically, the three-position four-way solenoid directional valve 1 (5.1) and the three-position four-way solenoid directional valve 2 (5.2) with manual adjustment function can be used for emergency reversing operation of equipment movement and steering in the event of system power failure. Both equipment movement speed and riveting speed are controlled by manually adjusting the throttle of engine 19.

[0075] Specifically, such as Figure 2 , Figure 3 As shown, the mobile platform is a self-propelled tracked vehicle driven by a hydraulic motor. The self-propelled tracks 11 are distributed on both sides of the hydraulic riveting pump station support frame 12, enabling passage through complex terrain. The support frame 12 is a fully enclosed structure, housing the electrical control system, hydraulic power system, and safety protection system within the support frame. Ventilation grilles are installed on the four sides of the support frame, and lifting rings are installed on the four corner support columns. Pressure gauges and doors are installed on the front and rear sides of the support frame. The pressure gauges allow for monitoring the real-time pressure of riveting oil circuits one and two, and drive oil circuits one and two. The doors allow for inspection, maintenance, and repair of the electrical control system, hydraulic power system, and safety protection system inside the support frame 12. Additionally, a detachable storage rack 15 and direct drive control elements are installed on the upper side of the support frame partitions, and an auxiliary oil tank 14 is embedded within them.

[0076] Specifically, such as Figure 4 , Figure 5 As shown, the hydraulic power system above the support frame uses engine 19 as a direct drive power source. The engine output shaft is connected to eccentric rolling bearing 24, and multiple hydraulic pump heads 23 drive hydraulic pump 1 through eccentric rolling of the bearing to achieve the oil suction and discharge process. The entire hydraulic pump 1 passes through integrated valve block 20 and is fully immersed in hydraulic oil tank 21. Hydraulic oil tank 21 is close to integrated valve block 20 to avoid too many external oil circuits. Various hydraulic valve components and oil circuits are carried on integrated valve block 20. The hydraulic valves are integrated on integrated valve block 20, which has a high degree of integration, compact structure, and small size. Quick-connect couplings 7 are installed on integrated valve block 20 for easy insertion and removal of pipelines and connection of hydraulic riveting gun 9.

[0077] Specifically, the hydraulic power system can adopt a horizontal axis output mode or a vertical axis output mode, which can supply oil to the hydraulic riveting gun at nine different flow rates to achieve rapid riveting.

[0078] Specifically, such as Figure 6 , Figure 7 As shown, Figure 6 A schematic diagram of the arrangement of three sets of plunger hydraulic pump heads; Figure 7 This is a schematic diagram showing the arrangement of six sets of plunger hydraulic pump heads. The hydraulic riveting pump station for the dual-riveting circuit tracked vehicle of this invention can also be used... Figure 7A plunger hydraulic pump with six pump heads, each plunger hydraulic pump head distributed on a single plane or multiple planes in parallel, enables rapid riveting with riveting tools.

[0079] The piston hydraulic pump described in this invention comprises multiple pump heads, and can have three sets of pump heads, such as... Figure 6 As shown, it could also be six sets of pump heads, such as... Figure 7 As shown, a central rotating shaft drives the pump head to operate cyclically, enabling a single plunger hydraulic pump to continuously output hydraulic oil. The number of pump heads in a plunger hydraulic pump affects its output performance. For example, a plunger hydraulic pump with three pump heads can output high pressure and low flow rate; a plunger hydraulic pump with six pump heads can output low pressure and high flow rate. This invention utilizes eight plunger hydraulic pumps with similar structures but different performance characteristics, all driven by the same rotating shaft.

Claims

1. A self-propelled hydraulic riveting pump station, characterized in that: Includes mobile platform, hydraulic power system and control system; The mobile platform is a tracked remote-controlled mobile mechanism, comprising two sets of mobile tracks driven independently by hydraulic motors and a carrier platform they support; The hydraulic power system is installed on the mobile platform and includes a riveting hydraulic power system and a drive hydraulic power system. The riveting hydraulic power system and the drive hydraulic power system include eight hydraulic pumps directly driven by the same engine. Among them, hydraulic pump 1 and hydraulic pump 2 are connected in parallel to supply oil to hydraulic motor 1 of drive oil circuit 1, hydraulic pump 3 and hydraulic pump 4 are connected in parallel to supply oil to hydraulic motor 2 of drive oil circuit 2, drive oil circuit 1 and drive oil circuit 2 operate independently, hydraulic motor 1 drives one track, and hydraulic motor 2 drives another track; hydraulic pump 5 and hydraulic pump 6 are connected in parallel and then connected in parallel with drive oil circuit 1 via two-position three-way solenoid valve 1 to enhance the oil supply to hydraulic motor 1. At the same time, after being switched by two-position three-way solenoid valve 1, they supply oil to hydraulic riveting gun 1 of riveting oil circuit 1; hydraulic pump 7 and hydraulic pump 8 are connected in parallel and then connected in parallel with drive oil circuit 2 via two-position three-way solenoid valve 2 to enhance the oil supply to hydraulic motor 2. At the same time, after being switched by two-position three-way solenoid valve 2, they supply oil to hydraulic riveting gun 2 of riveting oil circuit 2. The control system includes a wireless drive control system and an electronic control system. The wireless drive control system is a wireless control operating mechanism composed of wireless signal transmitting and receiving devices. The electronic control system includes a riveting electronic control system and a drive electronic control system. The riveting electronic control system is connected to the riveting hydraulic power system to realize riveting control, and the drive electronic control system is connected to the drive hydraulic power system to realize platform movement control.

2. The self-propelled hydraulic riveting pump station according to claim 1, characterized in that: The hydraulic motor one is connected to the drive oil circuit one via a three-position four-way solenoid directional valve one with manual adjustment function for drive control; the hydraulic motor two is connected to the drive oil circuit two via a three-position four-way solenoid directional valve two with manual adjustment function for drive control; each drive oil circuit is equipped with an overflow valve.

3. The self-propelled hydraulic riveting pump station according to claim 2, characterized in that: The hydraulic riveting gun one is driven and controlled by the riveting oil circuit one through the three-position four-way solenoid valve one; the hydraulic riveting gun two is driven and controlled by the riveting oil circuit two through the three-position four-way solenoid valve two; each riveting oil circuit is equipped with a pressure relay and can be detachably connected through a quick-connect coupling.

4. The self-propelled hydraulic riveting pump station according to claim 3, characterized in that: The drive electronic control system switches the drive oil circuit by controlling a three-position four-way solenoid directional valve with manual adjustment function, thereby controlling the hydraulic motor to rotate forward and reverse, and driving the track to move forward and backward. The drive electronic control system also controls the flow of the drive oil circuit and the rotation speed of the hydraulic motor by controlling the engine throttle or ignition switch, thereby controlling the track movement speed. The drive electronic control system controls the drive oil circuits of the two hydraulic motors separately, and achieves differential control of the hydraulic motors by controlling the three-position four-way solenoid directional valve with manual adjustment function on the two drive oil circuits respectively, thereby achieving movement control of the track in the left and right directions and other angular sub-directions.

5. The self-propelled hydraulic riveting pump station according to claim 3, characterized in that: The riveting electronic control system controls the riveting oil circuit drive switching by controlling the two-position three-way solenoid directional valve and the three-position four-way solenoid directional valve, and controls the hydraulic riveting tool to realize riveting and unriveting operations.

6. The self-propelled hydraulic riveting pump station according to claim 3, characterized in that: The pressure relay is connected to the riveting electrical control system and is used to detect the piston reset state of the rod-side and rodless sides of the riveting tool and then send a signal to release pressure and put the system back into standby mode.

7. The self-propelled hydraulic riveting pump station according to claim 3, characterized in that: The eight hydraulic pumps are either piston hydraulic pumps or gear hydraulic pumps; the piston hydraulic pump heads are distributed in a single plane or multiple planes in parallel, and the output structure adopts a horizontal axis output structure or a vertical axis output structure; the hydraulic pumps are immersed in the hydraulic oil tank through an integrated valve block, and the integrated valve block is directly connected to the hydraulic oil tank and the hydraulic valve group.

8. The self-propelled hydraulic riveting pump station according to claim 3, characterized in that: The control system is also equipped with a safety protection system, which includes a manual emergency stop device and a wireless emergency stop device, as well as alarm lights and fire extinguishers. The safety protection system includes two sets of three-position four-way solenoid directional valves with manual adjustment function, which are used to perform emergency reversing operation to move and turn the tracked mobile platform when the system loses power.

9. The self-propelled hydraulic riveting pump station according to claim 3, characterized in that: Each oil circuit of the riveting hydraulic power system and the drive hydraulic power system of the hydraulic power system is equipped with a filter; the filter can be built-in or external, and the filter precision includes coarse filter and fine filter, which are used to filter oil impurities and protect pump station equipment.

10. The self-propelled hydraulic riveting pump station according to claim 3, characterized in that: The wireless control mechanism includes a display screen, a wireless signal transmitter and receiver, and a wireless controller consisting of battery components; the battery components include a rechargeable assembly consisting of a battery, a solar panel, and a charging interface.

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