Self-propelled hydraulic riveting pump station

Abstract

The invention discloses a self-propelled hydraulic riveting pump station which comprises a movable platform, a hydraulic power system and a control system. The moving platform comprises two groups of moving tracks which are independently driven by hydraulic motors and a platform of the moving tracks; 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 in two groups directly driven by the same engine; wherein the two hydraulic pumps are connected in parallel to supply oil to a first hydraulic motor of a first driving oil way to drive a first moving crawler belt, the two hydraulic pumps are connected in parallel to the first driving oil way through a first electromagnetic reversing valve to enhance oil supply to the first hydraulic motor, meanwhile, the two hydraulic pumps are reversed through the first electromagnetic reversing valve to supply oil to a first riveter of a first riveting oil way, and the other set is the same; the control system comprises a wireless driving control system and an electric control system; the walking and riveting device meets various requirements of walking and riveting, can provide power for riveting of short-tail type pulling rivets, pulling-breaking type pulling rivets and the like, and is safe and reliable.

Description

Technical Field

[0001] The present invention belongs to the field of riveting and fastening technology, in particular to the field of riveting and fastening equipment design and manufacturing technology, and particularly relates to a rivet fastening connection hydraulic equipment technology, which belongs to the riveting category (B21J), specifically a self-propelled crawler vehicle hydraulic riveting pump station with double riveting circuits. Background Art

[0002] With the increasing requirements for fastener connection performance in modern mechanical products, equipment, high-speed trains, bridge construction, and aerospace research and development, rivet connection 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] A pull rivet is a fastener invented to prevent loosening using the principle of unidirectional tension based on Hooke's law. It is the combined name for rivets and collars. Rivets are equivalent to the bolts in bolted joints, differing primarily in that rivets lack threaded grooves but instead have a series of annular grooves. Collars are equivalent to the nuts in bolted joints, differing primarily in that the inner surface of the collar is smooth instead of internal threads. During installation, specialized riveting equipment squeezes the metal of the collar into the annular groove of the rivet, creating a permanent connection. Pull rivets also offer excellent vibration resistance, strong impermeability, high connection strength, easy inspection, effective prevention of loosening due to vibration, and long-term maintenance-free operation.

[0004] Rivets offer a simple installation process, high efficiency, and excellent performance. Beyond aerospace, they are widely used in high-speed rail vehicles, wind power, nuclear power, heavy-duty vehicles, mining machinery, steel structures, and bridge construction. These applications have become increasingly complex and diverse, and so have the corresponding applications of riveting equipment. In these new applications, rivet assembly is increasingly being performed outdoors and at non-stationary locations. To address energy constraints during the riveting process, hydraulic riveting pump stations are placed on the ground for indoor non-stationary work, with long oil pipes connecting the riveting tools to the pump stations. Outdoor operations use generators to power the hydraulic riveting pump stations. For outdoor non-stationary work (such as on-site riveting at solar farms), generators and hydraulic riveting pumps, or diesel or gasoline hydraulic riveting pump stations, are placed on trucks and constantly moved around with the riveting stations. These trucks require support personnel such as drivers, mechanics, and electricians, resulting in high costs. These factors contribute to the high cost of rivet installation, hindering the widespread application of rivets in these new applications. During the riveting process, due to the different specifications of the rivets being riveted and the different loads of the riveting tools, existing electric riveting tools are difficult to maintain high riveting efficiency using smaller power motors under different loads, which easily leads to energy waste. Under heavy loads, electric riveting tools are difficult to provide sufficient riveting force. Therefore, there is an urgent need for a hydraulic riveting pump station equipment that can move long distances, adapt to complex terrain, be simple and convenient to operate, and do not require additional power generation facilities. Summary of the Invention

[0005] In response to the shortcomings of the prior art, the present invention discloses a self-propelled hydraulic riveting pump station. The present invention aims to provide a self-propelled crawler vehicle hydraulic riveting pump station with dual riveting circuits. The hydraulic riveting pump station of the present invention can be self-propelled over long distances, adapts to complex terrain, is simple and convenient to operate, requires no additional power generation facilities, has a compact structure, and is safe and reliable. This hydraulic riveting pump station can address the existing demand for self-propelled mobile hydraulic riveting pump stations for outdoor operations, reduces operating costs, facilitates outdoor operations, and improves work efficiency.

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

[0007] A self-propelled hydraulic riveting pump station, characterized by comprising a mobile platform, a hydraulic power system and a control system;

[0008] The mobile platform is a crawler-type remote-controlled mobile mechanism, which includes two sets of mobile crawlers independently driven by hydraulic motors and the carrying platform they carry;

[0009] The hydraulic power system is arranged on the mobile platform, including a riveting hydraulic power system and a driving hydraulic power system; the riveting hydraulic power system and the driving 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 driving oil circuit 1, and hydraulic pump 3 and hydraulic pump 4 are connected in parallel to supply oil to hydraulic motor 2 of driving oil circuit 2, and driving oil circuit 1 and driving oil circuit 2 operate independently, hydraulic motor 1 drives one moving crawler, and hydraulic motor 2 drives another moving crawler; hydraulic pump 5 and hydraulic pump 6 are connected in parallel to increase oil supply to hydraulic motor 1 through a two-position three-way electromagnetic reversing valve 1 and driving oil circuit 1, and at the same time, after being switched by a two-position three-way electromagnetic reversing valve 1, they supply oil to hydraulic rivet gun 1 of riveting oil circuit 1; hydraulic pump 7 and hydraulic pump 8 are connected in parallel to increase oil supply to hydraulic motor 2 through a two-position three-way electromagnetic reversing valve 2 and driving oil circuit 2, and at the same time, after being switched by a two-position three-way electromagnetic reversing valve 2, they supply oil to hydraulic rivet 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 driving electronic control system. The riveting electronic control system is connected to the riveting hydraulic power system to realize riveting control, and the driving electronic control system is connected to the driving hydraulic power system to realize platform movement control.

[0011] The hydraulic motor 1 is connected to the driving oil circuit 1 through a three-position four-way electromagnetic reversing valve 1 with a manual adjustment function; the hydraulic motor 2 is connected to the driving oil circuit 2 through a three-position four-way electromagnetic reversing valve 2 with a manual adjustment function; each driving oil circuit is provided with a relief valve.

[0012] The hydraulic riveting gun 1 is connected to the riveting oil circuit 1 for driving control through the 3-position 4-way electromagnetic reversing valve 1; the hydraulic riveting gun 2 is connected to the riveting oil circuit 2 for driving control through the 3-position 4-way electromagnetic reversing valve 2; each riveting oil circuit is provided with a pressure relay and is detachably connected through a quick-change joint.

[0013] The drive electronic control system switches the drive oil circuit by controlling the three-position four-way electromagnetic reversing valve with a manual adjustment function, thereby controlling the forward and reverse rotation of the hydraulic motor and driving the crawler to move forward and backward; the drive electronic control system also controls the drive oil circuit flow by controlling the engine throttle or switch, controls the rotation speed of the hydraulic motor, and controls the movement speed of the crawler; the drive electronic control system controls the drive oil circuits of the two hydraulic motors separately, and realizes hydraulic motor differential by controlling the switching of the three-position four-way electromagnetic reversing valves with a manual adjustment function in the two drive oil circuits, thereby realizing movement control of the crawler in the left and right directions and other angular sub-directions.

[0014] The riveting electric control system realizes riveting oil circuit drive switching by controlling a two-position three-way electromagnetic reversing valve and a three-position four-way electromagnetic reversing valve, and controls the hydraulic riveting tool to realize riveting and unriveting operations.

[0015] The pressure relay is connected to the riveting electronic control system for detecting the reset state of the pistons in the rod chamber and the rodless chamber of the riveting tool and then sending a signal to the pressure relief system to resume standby.

[0016] The eight hydraulic pumps are either plunger or gear pumps; the plunger pump heads are distributed in a single plane or in parallel across multiple planes, and the output structure utilizes either a horizontal or vertical axis output structure. The hydraulic pumps 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 group.

[0017] The control system is also provided with a safety protection system, which includes a manual emergency stop device and a wireless emergency stop device, as well as an alarm light and a fire extinguisher; the safety protection system includes two sets of three-position four-way electromagnetic reversing valves with manual adjustment function, which are used for emergency reversing operation of the crawler mobile platform for walking and steering when the system loses power.

[0018] Each oil circuit of the riveting hydraulic power system and the driving hydraulic power system of the hydraulic power system is provided with a filter; the filter includes a built-in type or an external type, and the filter filtration accuracy includes a coarse filter and a fine filter, which is used to filter oil impurities and protect the pump station equipment.

[0019] The wireless control operating mechanism includes a wireless controller composed of a display screen, a wireless signal transmitting and receiving device, and a battery component; the battery component includes a rechargeable component composed of a battery, a solar panel, and a charging interface.

[0020] The present invention has the beneficial effects:

[0021] The double riveting circuit crawler vehicle hydraulic riveting pump station developed by the present invention can be used not only for pull-off blind rivet type fasteners, but also for non-pull-off short-tail rivets, repeatable rivets and other product types to meet the needs of various products.

[0022] The hydraulic riveting pump station of this invention utilizes self-propelled tracks, enabling it to navigate complex terrain and reach a maximum climbing angle of 55 degrees. The device is simple and easy to operate, requires no additional power generation facilities, and boasts a compact, safe, and reliable structure. This device addresses the existing demand for self-propelled mobile hydraulic riveting pump stations for outdoor operations, while also reducing operating costs, facilitating outdoor operations, and improving work efficiency.

[0023] The dual-riveting circuit hydraulic riveting pump station for crawler vehicles developed by this invention utilizes dual riveting circuits, capable of supporting riveting operations with a single rivet gun or two rivet guns simultaneously. The wireless drive control employed by the device enables movement control of the hydraulic riveting pump station in four primary directions (front, back, left, and right), as well as other secondary directions at angles, with rapid response and minimal lag. It also enables remote one-touch start and shut down, wireless emergency stop, and one-touch locking and unlocking of the device.

[0024] The hydraulic riveting pump station of the present invention adopts a gasoline engine or a diesel engine or other types of engines directly connected to the hydraulic pump through an eccentric shaft. The hydraulic pump is immersed in the oil of the hydraulic oil tank through an integrated valve block. The integrated valve block is directly connected to the hydraulic oil tank and the hydraulic valve group, which reduces the use of structures such as couplings, makes the overall equipment fewer parts, has a more compact structure, is lighter in weight, and has higher reliability.

[0025] The engine, hydraulic pump, integrated block, fuel tank and other heavy structural parts of the present invention are arranged at the center of gravity of the mobile crawler transport platform, thereby improving the stability of the entire machine during movement and its ability to pass through complex terrain. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0030] Figure 5 This is a schematic diagram of the internal structure of the self-propelled 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 groups of pump head plunger hydraulic pump heads in the self-propelled hydraulic riveting pump station of the present invention;

[0032] Figure 7 This is a schematic diagram of the arrangement of six groups of pump head plunger hydraulic pump heads in the self-propelled hydraulic riveting pump station of the present invention;

[0033] Figure 1: 1 is a hydraulic pump, 2 is a two-position three-way solenoid reversing valve, 3 is a relief valve, 4 is a pressure regulating valve, 5 is a three-position four-way solenoid reversing valve, 6 is a three-position four-way solenoid reversing valve, 7 is a quick-change connector, 8 is a pressure relay, 9 is a hydraulic riveting gun, 10 is a hydraulic motor, 11 is a self-propelled crawler, 12 is a pump station support frame, 13 is a warning signal light, 14 is an auxiliary oil tank, 15 is a storage frame, 16 is an electric control box, 17 is an on-board fire extinguisher, 18 is a battery, 19 is an engine, 20 is an integrated valve block, 21 is a hydraulic oil tank, 22 is an oil tank, 23 is a plunger pump head, and 24 is an eccentric bearing;

[0034] 1.1 is hydraulic pump one, 1.2 is hydraulic pump two, 1.3 is hydraulic pump three, 1.4 is hydraulic pump four, 1.5 is hydraulic pump five, 1.6 is hydraulic pump six, 1.7 is hydraulic pump seven, and 1.8 is hydraulic pump eight; 2.1 is two-position three-way solenoid directional valve one, 2.2 is two-position three-way solenoid directional valve two; 3.1 is overflow valve one, 3.2 is overflow valve two, 3.3 is overflow valve three, and 3.4 is overflow valve four; 4.1 is pressure regulating valve one, 4.2 is pressure regulating valve two; 5.1 is three-position four-way solenoid directional valve one with manual adjustment function, 5.2 is three-position four-way solenoid directional valve two with manual adjustment function; 6.1 is three-position four-way solenoid directional valve one, 6.2 is three-position four-way solenoid directional valve two; 9.1 is hydraulic rivet gun one, 9.2 is hydraulic rivet gun two; 10.1 is hydraulic motor one, 10.2 is hydraulic motor two. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with specific embodiments. The specific embodiments are further explanations of the principles of the present invention and do not limit the present invention in any way. Technologies that are the same or similar to the present invention do not exceed the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0037] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "having," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.

[0038] Combined with the attached drawings.

[0039] The hydraulic riveting pump station for a double riveting circuit crawler vehicle of the present invention comprises a mobile platform, a hydraulic power system and a control system;

[0040] The mobile platform is a crawler-type remote-controlled mobile mechanism, which includes two sets of mobile crawlers independently driven by hydraulic motors and the carrying platform they carry;

[0041] The hydraulic power system is arranged on the mobile platform, including a riveting hydraulic power system and a driving hydraulic power system; the riveting hydraulic power system and the driving 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 driving oil circuit 1, and hydraulic pump 3 and hydraulic pump 4 are connected in parallel to supply oil to hydraulic motor 2 of driving oil circuit 2, and driving oil circuit 1 and driving oil circuit 2 operate independently, hydraulic motor 1 drives one moving crawler, and hydraulic motor 2 drives another moving crawler; hydraulic pump 5 and hydraulic pump 6 are connected in parallel to drive oil circuit 1 through a two-position three-way electromagnetic reversing valve 1 to increase the oil supply to hydraulic motor 1, and at the same time, after being switched by the two-position three-way electromagnetic reversing valve 1, they supply oil to the riveting oil circuit 1; hydraulic pump 7 and hydraulic pump 8 are connected in parallel to drive oil circuit 2 through a two-position three-way electromagnetic reversing valve 2 to increase the oil supply to hydraulic motor 2, and at the same time, after being switched by the two-position three-way electromagnetic reversing valve 2, they supply oil to the riveting oil circuit 2;

[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 driving electronic control system. The riveting electronic control system is connected to the riveting hydraulic power system to realize riveting control, and the driving electronic control system is connected to the driving hydraulic power system to realize platform movement control.

[0043] The wireless control operating mechanism includes a wireless controller composed of display screen, wireless signal transmitting and receiving device, battery and other components;

[0044] The electrical control system includes the riveting electrical control system and the driving electrical control system. The riveting electrical control system and the driving electrical control system, together with the electrical control cabinet composed of the main power switch, indicator lights and other electrical components, constitute the electrical control system;

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

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

[0047] The wireless drive control system can directly realize the movement control of the hydraulic riveting pump station of the double riveting circuit crawler vehicle in the four main directions of front, back, left, right and other secondary directions through the wireless controller. It has a fast response speed and small delay lag. At the same time, it can realize remote one-button start, one-button shutdown, wireless emergency stop, and one-button locking and unlocking of the equipment.

[0048] The wireless control operating mechanism of 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 through solar panels. When the power is too low, it can also be directly replenished through the charging interface.

[0049] The wireless control operating mechanism of the wireless drive control system is equipped with a display, which can display in real time the operating time, mileage, wireless control signal strength, controller power and other information of the hydraulic riveting pump station of the double riveting circuit crawler vehicle.

[0050] The wireless control distance of the wireless drive control system can reach more than 100 meters. Within 100 meters, it can achieve fast control response speed of the equipment and small delay lag.

[0051] The wireless controller of the wireless drive control system is light in weight, small in size, compact in structure, and can be controlled and operated by one person. At the same time, the wireless controller has achieved IPX6 grade waterproof and dustproof functions.

[0052] The electronic control system consists of a riveting electronic control system and a drive electronic control system. The riveting electronic control system, comprised of integrated circuits, control chips, pressure relays, and other electrical and pneumatic components, switches the riveting oil circuit by controlling a two-position, three-way solenoid directional valve and a three-position, four-way solenoid directional valve. This controls the hydraulic riveting tool for riveting and unriveting, while also enabling single-button control of the hydraulic riveting system. The drive electronic control system, comprised of an electric starter, wireless signal transmitter and receiver, and a drive control chip, receives signals from both the wireless drive control system and the device's control components, enabling movement control in the four primary directions (front, back, left, and right) and other secondary directions.

[0053] The pressure relay of the riveting electronic control system is used to send a signal to relieve the pressure and put the system back into standby mode after detecting that the pistons in the rod chamber and rodless chamber of the riveting tool have reset.

[0054] The drive electronic control system switches the drive oil circuit by controlling the three-position four-way electromagnetic reversing valve, and then controls the forward and reverse rotation of the hydraulic motor, driving the crawler to realize the forward and backward driving functions of the equipment. At the same time, the drive electronic control system controls the size of the drive oil circuit flow by controlling the size of the engine throttle or switch, and then controls the rotation speed of the hydraulic motor to realize functions such as controlling the moving speed of the equipment.

[0055] The drive electronic control system can control the two hydraulic motor drive oil circuits separately. By controlling the switching of the three-position four-way electromagnetic reversing valves on the two drive oil circuits, the hydraulic motor differential is 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 divided into a riveting hydraulic power system and a drive hydraulic power system. Each system uses two oil circuits, which are independent of each other. Both systems are equipped with filters. These filters are available in internal or external types, with varying filtration accuracy, including coarse or fine filters, to filter out oil impurities and protect the pump station equipment.

[0057] The hydraulic power system is directly driven by the same gasoline engine or diesel engine or other types of engines to drive eight hydraulic pumps. Each hydraulic pump is fully immersed in the oil in the oil tank. Hydraulic pump 1 and hydraulic pump 2 are connected in parallel to supply oil to hydraulic motor 1 of drive oil circuit 1, and 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 are not connected to each other and operate independently. After hydraulic pump five is connected in parallel with hydraulic pump six, it can be connected in parallel with hydraulic pump one and hydraulic pump two through two-position three-way electromagnetic reversing valve one to supply oil to hydraulic motor one of drive oil circuit one, thereby increasing oil supply and improving the moving speed and driving force of the equipment. It can also be switched through two-position three-way electromagnetic reversing valve one to supply oil to riveting oil circuit one alone to drive riveting tools to operate. After hydraulic pump seven is connected in parallel with hydraulic pump eight, it can be connected in parallel with hydraulic pump three and hydraulic pump four through two-position three-way electromagnetic reversing valve two to supply oil to hydraulic motor two of drive oil circuit two. It can also be switched through two-position three-way electromagnetic reversing valve two to supply oil to riveting oil circuit two alone.

[0058] The eight hydraulic pumps are either plunger or gear pumps, with the plunger pump heads distributed in a single plane or in parallel across multiple planes. The output structure uses either a horizontal or vertical axis output structure.

[0059] The riveting hydraulic power system adopts two sets of riveting hydraulic oil circuits. Each set of oil circuits is supplied with oil by two hydraulic pumps in parallel. It can support the riveting operation of one riveting gun or the simultaneous riveting operation of two riveting guns.

[0060] The input ends of hydraulic pump five and hydraulic pump six of the riveting hydraulic power system are respectively connected to filters to absorb oil from the main oil tank. After the output oil circuits are connected in parallel, they are directly connected to the two-position three-way solenoid reversing valve one, the safety valve one, the pressure gauge one and the pressure regulating valve one. After the two-position three-way solenoid reversing valve one (reversing), they are directly connected to the input end of the three-position four-way solenoid reversing valve one, and then connected to the pressure relay one and the riveting tool one after passing through the three-position four-way solenoid reversing valve one; through the two-position three-way solenoid reversing valve one (not reversing), they are connected in parallel with the output ends of hydraulic pump one and hydraulic pump two to supply oil to the 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 1 and hydraulic pump 2 that drive the hydraulic power system are respectively connected to filters to absorb oil from the main oil tank. After the output oil circuits are connected in parallel, they are directly connected to the output end of three-position four-way solenoid reversing valve 1 with manual adjustment function, safety valve 4, pressure gauge 3 and two-position three-way solenoid reversing valve 1, and then connected to hydraulic motor 1 after passing through three-position four-way solenoid reversing valve 1 with manual adjustment function; similarly, the oil circuit connections of hydraulic pump 3 and hydraulic pump 4 are similar.

[0062] The safety protection system is equipped with an emergency stop device and a wireless emergency stop device. The emergency stop device can be directly controlled, and the wireless emergency stop device can stop the vehicle without delay. The equipment is also equipped with an alarm light to alert you of equipment failure. Safety protection devices such as a fire extinguisher are also included. The safety protection system is equipped with a three-position, four-way solenoid reversing valve with manual adjustment function, which can reverse the direction of the crawler vehicle in the event of a power failure.

[0063] The mobile platform is a self-propelled tracked vehicle driven by a hydraulic motor. The self-propelled tracks are located on the left and right sides of the hydraulic riveting pump station support frame. The hydraulic riveting pump station support frame adopts a fully partitioned cover, covering the electronic control system, hydraulic power system, and safety protection system inside the support frame. The partitions on the front, back, left, and right sides of the support frame are equipped with ventilation grilles. The support columns at the four corners of the support frame are equipped with lifting rings. Pressure gauges and doors are installed on the partitions on the front and back sides of the support frame. The pressure gauges can be used to check the real-time pressure of riveting oil circuits 1 and 2 and drive oil circuits 1 and 2. The doors can also be used to inspect, repair, and maintain the electronic control system, hydraulic power system, and safety protection system inside the support frame. At the same time, a removable shelf, direct drive control components, and an embedded auxiliary oil tank are installed on the upper side of the support frame partition.

[0064] The mobile platform can navigate complex terrain with a maximum climbing angle of 55 degrees. At the same time, the hydraulic riveted pump station support frame adopts a full partition covering type, so that the entire equipment can achieve IPX3 level waterproofing.

[0065] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0066] like Figure 1The figure shows the hydraulic power system schematic. As shown in the figure, the riveting hydraulic oil circuit and the drive hydraulic oil circuit each have two sets of oil circuits. Riveting oil circuit 1 and riveting oil circuit 2 are independent of each other and do not affect each other. Drive oil circuit 1 and drive oil circuit 2 are independent of each other and do not affect each other. Drive oil circuit 1 is connected to riveting oil circuit 1, and drive oil circuit 2 is connected to riveting oil circuit 2.

[0067] Specifically, taking drive oil circuit 1 and riveting oil circuit 1 as examples, drive oil circuit 1 consists of two hydraulic pumps 1, namely hydraulic pump 1.1 and hydraulic pump 2 1.2, which directly provide hydraulic power to hydraulic motor 10.1. Riveting oil circuit 1 also consists of two hydraulic pumps 1, namely hydraulic pump 5 1.5 and hydraulic pump 6 1.6, which directly provide hydraulic power to riveting gun 1 9.1 through 2-position 3-way solenoid reversing valve 1 2.1 (when reversing). Alternatively, they can be connected in parallel to drive oil circuit 1 through 2-position 3-way solenoid reversing valve 1 2.1 (when not reversing), and together with hydraulic pump 1.1 and hydraulic pump 2 1.2, provide hydraulic power to hydraulic motor 10.1, increasing flow supply and speed. Drive oil circuit 2 is similar to riveting oil circuit 2.

[0068] Specifically, the input ends of hydraulic pump 1.1 and hydraulic pump 2 1.2 draw oil from tank 21. Their output ends are connected in parallel to the output end of two-position, three-way solenoid directional valve 1 2.1, the input end of relief valve 4 3.4 (which serves as a safety valve), and the input end of three-position, four-way solenoid directional valve 1 5.1 with a manual adjustment function. Relief valve 4 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 1 5.1 with a manual adjustment function. Another set of hydraulic pumps 3 1.3 and 4 1.4 have the same oil circuit connections, but the two sets of oil circuits are disconnected and each forms a hydraulic oil circuit. The input ends of hydraulic pump 5 (1.5) and hydraulic pump 6 (1.6) draw oil from tank 21. Their output ends are connected in parallel to the input end of 2 / 3-way solenoid reversing valve 12.1, the input end of relief valve 13.1 (which serves as a safety valve), and the input end of pressure regulating valve 14.1. Relief valve 13.1, which serves as a safety valve, protects riveting oil circuit 1 and limits its maximum operating pressure. Pressure regulating valve 14.1 adjusts the actual operating pressure of riveting oil circuit 1 after 2 / 3-way solenoid reversing valve 12.1 is switched. The oil is then connected to 3 / 4-way solenoid reversing valve 16. 1, then connected to hydraulic riveting gun 9.1 through three-position four-way solenoid reversing valve 6.1, and configured with pressure relay 8 to send a signal to the pressure relief system to resume standby after detecting the reset of the pistons in the rod chamber and rodless chamber of the hydraulic riveting gun; through two-position three-way solenoid reversing valve 2.1 (when not reversing), it is connected in parallel with the output ends of hydraulic pump 1.1 and hydraulic pump 2 1.2, and then directly connected to hydraulic motor 10.1 through three-position four-way solenoid reversing valve 5.1 with manual adjustment function; the other group of hydraulic pump 7 1.7 and hydraulic pump 8 1.8 oil circuits are connected in the same way, but the two groups of oil circuits are not connected and each forms a hydraulic oil circuit.

[0069] Specifically, the working process of the hydraulic riveting pump station of the double riveting circuit crawler vehicle is as follows: turn on the main power switch of the equipment's electronic control system and the wireless controller switch, the wireless controller automatically connects to the equipment, press the start button of the wireless controller, the equipment engine 19 starts, and drives the 8 hydraulic pumps 1 to run, and the hydraulic oil passes through the neutral position of the three-position four-way solenoid reversing valve 1 5.1 with manual adjustment function and the two-position four-way solenoid reversing valve 2 5.2 with manual adjustment function directly back to the oil tank 21.

[0070] Specifically, according to the working conditions, the working process of the hydraulic riveting pump station of the double riveting circuit crawler vehicle is further divided into three types: the first type of equipment only moves and does not perform riveting operations. At this time, the oil of the 8 hydraulic pumps 1 is supplied to the drive oil circuit. Press the wireless controller to move forward. The left electromagnet 4DT of the three-position four-way solenoid reversing valve 1 5.1 with manual adjustment function and the left electromagnet 9DT of the three-position four-way solenoid reversing valve 2 5.2 with manual adjustment function are energized at the same time and switch to the left position. The hydraulic motor 10.1 and the hydraulic motor 2 10.2 rotate forward, and the equipment moves in the forward direction. Release the forward movement button, and the electromagnets 4DT and 9DT lose power at the same time and switch to the middle position. The hydraulic oil returns directly to the tank 21, the hydraulic motor 10.1 and the hydraulic motor 2 10.2 stop rotating, and the equipment remains in place. Press the wireless controller to move left. Turn button, with manual adjustment function. The three-position four-way solenoid reversing valve 1 5.1 remains in the middle position. The three-position four-way solenoid reversing valve 2 5.2 with manual adjustment function is energized by the left electromagnet 9DT and switches to the left position. The hydraulic motor 10.1 stops rotating, the hydraulic motor 2 10.2 rotates forward, and the equipment rotates to the left. Release the left turn movement button, the left electromagnet 9DT loses power, and has manual adjustment function. The three-position four-way solenoid reversing valve 2 5.2 switches to the middle position, and the hydraulic oil returns to the tank 21 directly. The hydraulic motor 10.1 and the hydraulic motor 2 10.2 both stop rotating, and the equipment remains in its original position. Similarly, pressing the wireless controller to move the backward button is similar to the right turn button.

[0071] Specifically, the second type of equipment does not move, and only performs riveting operations. Press the lock button for this working mode. At this time, the left and right electromagnets of the three-position four-way solenoid reversing valve 1 5.1 with manual adjustment function and the three-position four-way solenoid reversing valve 2 5.2 with manual adjustment function in drive oil circuit 1 and drive oil circuit 2 will always remain in the de-energized state. The solenoid reversing valve will always remain in the neutral position, and the oil in the drive oil circuit will directly return to the oil tank 21 to prevent accidental touching of the movement button and causing the equipment to move. At the same time, the left electromagnet 1DT of the two-position three-way solenoid reversing valve 1 2.1 in the riveting oil circuit 1 will be energized and switched to the left position. After passing through the two-position three-way solenoid reversing valve 1 2.1, the oil of hydraulic pump 5 1.5 and hydraulic pump 6 1.6 will no longer be merged into the drive oil circuit 1, but will directly return to the oil tank 21 through the three-position four-way solenoid reversing valve 1 6.1. The same action will be applied to the riveting oil circuit 2. Press the button of hydraulic riveting gun 9.1, the left electromagnet 2DT of three-position four-way solenoid reversing valve 6.1 is energized and switched to the left position. The oil passes through the three-position four-way solenoid reversing valve 6.1 and enters the hydraulic riveting gun 9.1, driving the hydraulic riveting gun 9.1 to operate; after releasing the button of hydraulic riveting gun 9.1, the right electromagnet 3DT of three-position four-way solenoid reversing valve 6.1 is energized and switched to the right position. The hydraulic riveting gun 9.1 starts to reset. When it resets to the end of the stroke, the pressure relay 8 detects that the oil pressure rises to the set value and sends a signal. The left electromagnet 2DT and the right electromagnet 3DT of three-position four-way solenoid reversing valve 6.1 are both de-energized. The oil of hydraulic pump five 1.5 and hydraulic pump six 1.6 returns to the oil tank 21 through the middle position of three-position four-way solenoid reversing valve 6.1, and the riveting oil circuit is unloaded and runs at no load. Similarly, the working principle of the hydraulic riveting gun 2 is the same, and the hydraulic riveting gun 1 9.1 and the hydraulic riveting gun 2 9.2 can work simultaneously or separately 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 electromagnet 1DT of the two-position, three-way solenoid reversing valve 1 2.1 in riveting oil circuit 1, switching it to the left position. After passing through the two-position, three-way solenoid reversing valve 1 2.1, the oil from hydraulic pump 5 1.5 and hydraulic pump 6 1.6 no longer flows into drive oil circuit 1, but instead flows directly back to the oil tank 21 through the three-position, four-way solenoid reversing valve 1 2.1. The same operation occurs in riveting oil circuit 2. Simultaneously, the left and right electromagnets of the three-position, four-way solenoid reversing valve 1 5.1 and the three-position, four-way solenoid reversing valve 2 5.2 with manual adjustment functions in drive oil circuit 1 and drive oil circuit 2 will no longer remain in a de-energized state, but will instead switch direction according to the movement button signal. However, under the same working conditions, its travel speed will be lower than that of the first working mode. The working principle of the hydraulic riveting gun 9 is consistent with that of the second working mode and will not be repeated here.

[0073] Specifically, after the device completes the operation, the wireless controller off button is pressed, the device engine 19 is shut down, the main power switch of the device electronic control system and the wireless controller switch are turned off, and the entire device working process is completed.

[0074] Specifically, the manually adjustable three-position, four-way solenoid directional valve 1 (5.1) and the manually adjustable three-position, four-way solenoid directional valve 2 (5.2) can be used to operate the equipment in an emergency manner in the event of a power outage. Both the equipment's travel speed and riveting speed are controlled by manually adjusting the throttle of the engine (19).

[0075] Specifically, such as Figure 2 、 Figure 3 As shown, the mobile platform is a self-propelled crawler vehicle driven by a hydraulic motor. The self-propelled crawlers 11 are distributed on the left and right sides of the hydraulic riveting pump station support frame 12, which can achieve passage in complex terrain. The support frame 12 adopts a full partition covering type, covering the electronic control system, hydraulic power system and safety protection system inside the support frame. Breathable grilles are set on the front, back, left and right partitions of the support frame. The four corner support columns of the support frame 12 are equipped with lifting rings. Pressure gauges and doors are set on the front and back partitions of the support frame. The real-time pressure of riveting oil circuit 1, oil circuit 2 and drive oil circuit 1, oil circuit 2 can be checked through the pressure gauge. The internal electronic control system, hydraulic power system and safety protection system of the support frame 12 can also be checked, repaired and maintained through the door. At the same time, a detachable shelf 15 and direct drive control components are set on the upper side of the support frame partition, and an auxiliary oil tank 14 is embedded.

[0076] Specifically, such as Figure 4 、 Figure 5 As shown, the hydraulic power system above the support frame uses an engine 19 as a direct drive power source. The engine output shaft is connected to an eccentric rolling bearing 24. Multiple hydraulic pump heads 23 drive the hydraulic pump 1 through the eccentric rolling of the bearing to achieve the oil suction and discharge process. The entire hydraulic pump 1 passes through the integrated valve block 20 and is fully immersed in the hydraulic oil tank 21. The hydraulic oil tank 21 is closely attached to the integrated valve block 20 to avoid excessive external oil circuits. The integrated valve block 20 carries a variety of hydraulic valve components and oil circuits, including the hydraulic valves integrated on the integrated valve block 20. It has a high degree of integration, a compact structure, and a small size. The integrated valve block 20 is equipped with a quick-change connector 7 to facilitate the insertion and removal of pipelines and the connection of the hydraulic rivet gun 9.

[0077] Specifically, the hydraulic power system can adopt a horizontal axis output mode or a vertical axis output mode, and can supply oil to the hydraulic riveting gun with a large flow rate to achieve rapid riveting.

[0078] Specifically, such as Figure 6 、 Figure 7 As shown, Figure 6 It is a schematic diagram of the arrangement of the plunger hydraulic pump head with three groups of pump heads; Figure 7 The schematic diagram of the arrangement of the plunger hydraulic pump head of six groups of pump heads. The double riveting circuit crawler vehicle hydraulic riveting pump station of the present invention can also be Figure 7The plunger hydraulic pump has six groups of pump heads, and each plunger hydraulic pump head is distributed in a single plane, or multiple planes are distributed in parallel to achieve rapid riveting of the riveting tool.

[0079] The plunger hydraulic pump of the present invention comprises a plurality of pump heads, which may be three groups of pump heads, such as Figure 6 As shown, there may also be six groups of pump heads, such as Figure 7 As shown, the central rotating shaft drives the pump heads to operate cyclically, enabling a single plunger hydraulic pump to continuously output hydraulic fluid. 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 have a high-pressure, low-flow output, while a plunger hydraulic pump with six pump heads can have a low-pressure, high-flow output. The eight plunger hydraulic pumps of the present invention utilize eight similarly structured but different-performance plunger hydraulic pumps driven by a single rotating shaft.

Claims

1. A self-propelled hydraulic riveting pump station, characterized by: Including mobile platform, hydraulic power system and control system; The mobile platform is a crawler-type remote-controlled mobile mechanism, which includes two sets of mobile crawlers independently driven by hydraulic motors and the carrying platform they carry; The hydraulic power system is arranged on the mobile platform, including a riveting hydraulic power system and a driving hydraulic power system; the riveting hydraulic power system and the driving 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 driving oil circuit 1, and hydraulic pump 3 and hydraulic pump 4 are connected in parallel to supply oil to hydraulic motor 2 of driving oil circuit 2, and driving oil circuit 1 and driving oil circuit 2 operate independently, hydraulic motor 1 drives one moving crawler, and hydraulic motor 2 drives another moving crawler; hydraulic pump 5 and hydraulic pump 6 are connected in parallel to increase oil supply to hydraulic motor 1 through a two-position three-way electromagnetic reversing valve 1 and driving oil circuit 1, and at the same time, after being switched by a two-position three-way electromagnetic reversing valve 1, they supply oil to hydraulic rivet gun 1 of riveting oil circuit 1; hydraulic pump 7 and hydraulic pump 8 are connected in parallel to increase oil supply to hydraulic motor 2 through a two-position three-way electromagnetic reversing valve 2 and driving oil circuit 2, and at the same time, after being switched by a two-position three-way electromagnetic reversing valve 2, they supply oil to hydraulic rivet 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 driving electronic control system. The riveting electronic control system is connected to the riveting hydraulic power system to realize riveting control, and the driving electronic control system is connected to the driving 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 1 is connected to the driving oil circuit 1 through a three-position four-way electromagnetic reversing valve 1 with a manual adjustment function; the hydraulic motor 2 is connected to the driving oil circuit 2 through a three-position four-way electromagnetic reversing valve 2 with a manual adjustment function; each driving oil circuit is provided with a relief valve.

3. The self-propelled hydraulic riveting pump station according to claim 2, characterized in that: The hydraulic riveting gun 1 is connected to the riveting oil circuit 1 for driving control through the 3-position 4-way electromagnetic reversing valve 1; the hydraulic riveting gun 2 is connected to the riveting oil circuit 2 for driving control through the 3-position 4-way electromagnetic reversing valve 2; each riveting oil circuit is provided with a pressure relay and is detachably connected through a quick-change joint.

4. The self-propelled hydraulic riveting pump station according to claim 3 is characterized in that: The drive electronic control system switches the drive oil circuit by controlling the three-position four-way electromagnetic reversing valve with a manual adjustment function, thereby controlling the forward and reverse rotation of the hydraulic motor and driving the crawler to move forward and backward; the drive electronic control system also controls the drive oil circuit flow by controlling the engine throttle or switch, controls the rotation speed of the hydraulic motor, and controls the movement speed of the crawler; the drive electronic control system controls the drive oil circuits of the two hydraulic motors separately, and realizes hydraulic motor differential by controlling the switching of the three-position four-way electromagnetic reversing valves with a manual adjustment function in the two drive oil circuits, thereby realizing movement control of the crawler in the left and right directions and other angular sub-directions.

5. The self-propelled hydraulic riveting pump station according to claim 3 is characterized in that: The riveting electric control system realizes riveting oil circuit drive switching by controlling a two-position three-way electromagnetic reversing valve and a three-position four-way electromagnetic reversing 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 electronic control system for detecting the reset state of the pistons in the rod chamber and the rodless chamber of the riveting tool and then sending a signal to the pressure relief system to resume standby.

7. The self-propelled hydraulic riveting pump station according to claim 3, characterized in that: The eight hydraulic pumps are plunger hydraulic pumps or gear hydraulic pumps; the plunger hydraulic pump heads are distributed in a single plane, or in parallel on multiple planes, and the output structure adopts a horizontal axis output structure or a vertical axis output structure; the hydraulic pumps are immersed in the oil 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 provided with a safety protection system, which includes a manual emergency stop device and a wireless emergency stop device, as well as an alarm light and a fire extinguisher; the safety protection system includes two sets of three-position four-way electromagnetic reversing valves with manual adjustment function, which are used for emergency reversing operation of the crawler mobile platform for walking and steering 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 driving hydraulic power system of the hydraulic power system is provided with a filter; the filter includes a built-in type or an external type, and the filter filtration accuracy includes a coarse filter and a fine filter, which is used to filter oil impurities and protect the pump station equipment.

10. The self-propelled hydraulic riveting pump station according to claim 3, characterized in that: The wireless control operating mechanism includes a wireless controller composed of a display screen, a wireless signal transmitting and receiving device, and a battery component; the battery component includes a rechargeable component composed of a battery, a solar panel, and a charging interface.

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