87 results about "Backhoe loader" patented technology

The invention relates to a lock system which is manufactured for the assembly of the ground engaging wear parts in multi-purpose backhoe loaders and developed for use for different purposes (mining, highway and dam projects, road construction, maintenance and repair, water canal construction, decoupage, soil excavation, loading and spreading, etc.) in the construction and building sector, wherein it enables impact-free assembly of ground engaging wear parts of construction equipment.

The present disclosure relates to a method for controlling a backhoe loader and a backhoe loader, and relates to the field of engineering machinery. The method for controlling a backhoe loader includes: setting a power upper threshold P_0 for a variable displacement pump of the backhoe loader according to an operating mode of the backhoe loader; where the backhoe loader includes an engine, the variable displacement pump, a traveling system, a loading operation system, and a digging operation system; the operating mode includes: a traveling mode, a loading operation mode, and a digging operation mode; and adjusting the power upper threshold P_0 of the variable displacement pump according to an actual load of the backhoe loader in a current operating mode. In the technical solutions, the power upper thresholds P_0 are different in different operating modes. Power of the variable displacement pump is adjusted in real time.

The utility model discloses an excavation type loader bucket convenient to replace, which relates to the technical field of buckets and particularly comprises a bucket body, a first mounting seat and a second mounting seat, a detachable connecting mechanism is arranged at the bottom of the first mounting seat, and a driving arm is mounted at the bottom of the second mounting seat. U-shaped seats with downward openings are arranged at the bottom of the driving arm and the bottom of the detachable connecting mechanism; an oil cylinder fixing base is installed in the middle of the interior of each U-shaped base, a double-end hydraulic cylinder is arranged in each oil cylinder fixing base, the two free ends of each double-end hydraulic cylinder are coaxially connected with telescopic shafts, and the telescopic shafts movably penetrate through the side faces of the U-shaped bases. During use, when the bucket needs to be replaced, only the bucket needs to be placed on the ground, then the double-end hydraulic cylinder is controlled to be shortened, the double-end hydraulic cylinder drives the telescopic shafts to be separated from the connecting rings, and certainly, during installation, the bottom of the mechanical arm is controlled to be placed between the connecting rings, so that the bucket can be replaced. And the double-head hydraulic cylinder is controlled to drive the telescopic shaft to be arranged in the connecting ring.

The invention discloses a swing oil cylinder of a backhoe loader, which relates to the technical field of swing oil cylinders, and comprises a cylinder body assembly, and the cylinder body assembly comprises an oil cylinder shell. According to the swing oil cylinder of the backhoe loader, after the swing oil cylinder is used for a period of time, the interior of the swing oil cylinder needs to be cleaned, during cleaning, the first oil inlet and the second oil inlet need to be connected with a container containing a cleaning agent, cleaning liquid is injected into the first oil inlet and the second oil inlet, and the cleaning agent can be cleaned; the movable sleeve can be driven to move while the piston moves, the threaded groove outside the movable sleeve can pass through the cleaning shovel pipe, the valve is arranged outside the connecting pipe, the valve is closed when oil enters, the valve is opened when a cleaning agent enters, and under the action of the cleaning agent, the cleaning agent can enter the cleaning shovel pipe. Impurities adhered to the inner wall of the thread groove can be dissolved.

1. The name of the product of this design: cab (excavator loader). 2. Purpose of this design product: This design product is used as the cab of an excavator loader. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: main view. 5. The bottom surface of this design product is a part that is not easily visible or cannot be seen when in use, so the top view is omitted.

1. The name of the product under this design: Backhoe Loader (4CX). 2. Purpose of the product of this design: an excavator loader with integrated excavation and loading functions. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1. 5. The top surface of the product with this design has been shown in each three-dimensional diagram, and the top view has been omitted; the bottom surface of the product with this design is a part that is not easy to see or cannot be seen when in use, and the top view has been omitted.

The utility model relates to the technical field of engineering machinery, in particular to a supporting leg device and a backhoe loader. The supporting leg device comprises a sleeve, at least one fixing piece, at least one driving piece and a plurality of wear-resisting pads, and the fixing pieces are used for being connected to the outer pipe. The wear-resistant pad is arranged in the mounting hole of the outer pipe, and part of the wear-resistant pad extends out of the mounting hole. The sleeve is arranged on the outer pipe in a sleeving mode, a plurality of abutting parts are arranged on the inner wall of the sleeve, and the driving piece is correspondingly connected with the fixing piece and the sleeve. The driving piece drives the sleeve to move relative to the fixing piece, so that part of the abutting part abuts against the extending abrasion-resistant pad, and the abrasion-resistant pad is pushed to move towards the inner pipe. According to the supporting leg device and the backhoe loader, the frequency of replacing the wear-resisting pad is reduced, and operation is convenient.

The invention discloses a driving position reversing system for a backhoe loader. The driving position reversing system comprises a seat, a steering wheel and a controller. The steering wheel is arranged behind the cab front gear through the adjusting mechanism; a loading position sensor and an excavating position sensor are correspondingly arranged at a loading driving position and an excavating driving position in the cab respectively, and a sensing plate is arranged at the bottom of a seat; when a loading driving position needs to be switched to an excavating driving position, the controller firstly controls the adjusting mechanism to enable the steering wheel to be far away from the seat; then, the seat is controlled to steer, and when the sensing plate moves from the loading position sensor to the excavating position sensor, the seat stops rotating; when the excavation driving position needs to be switched to the loading driving position, the controller firstly controls the seat to turn, and when the induction plate moves to the loading position sensor from the excavation position sensor, the seat stops rotating; controlling the adjusting mechanism to enable the steering wheel to be located at the set position of the loading driving mode; one-key adjustment of the driving position is achieved, and the operation comfort and the driving experience feeling of a driver are improved.

The utility model discloses an excavation type loader convenient to overhaul, which relates to the technical field of loaders and particularly comprises a cab arranged in the middle of a frame, driving arms and an engine which are respectively arranged at two ends of the frame and connected with the cab, the cab is connected with the frame through a lifting mechanism, and the lifting mechanism comprises a supporting seat fixedly connected with the frame. A mounting seat is arranged right above the supporting seat; the top of the supporting base is symmetrically connected with two second rotating supports, the tops of the two second rotating supports are rotationally connected with first rotating supports and second rotating supports, the first rotating supports are each of a cross-shaped structure, one side of each second rotating support is rotationally connected with the supporting base, and the other side of each second rotating support is slidably connected with the supporting base. Under the driving of the second rotating bracket and the first rotating bracket, the lifting motion of the cab can be realized, so that constructors can conveniently maintain and overhaul the device.

The utility model relates to the technical field of engineering machinery control, in particular to an excavation main control valve for a backhoe loader, which comprises a valve body with a hydraulic channel, and the valve body sequentially comprises an oil inlet joint, an excavation joint, a support leg joint and a tail joint which are hermetically connected in series into a whole; the excavating unit and the supporting leg unit are three-position six-way manual valves, and an electromagnetic valve is arranged on the tail unit; the number of the excavating units is four, and the number of the supporting leg units is two. Wherein the oil inlet connector is provided with an oil pump connector communicated with the hydraulic channel; the tail connector is further provided with an X connector and an oil tank connector which are communicated with the hydraulic channel; pressure regulating assemblies A used for limiting and stabilizing pressure are arranged between the hydraulic channel and the opening A and the opening B of the excavation unit, and each pressure regulating assembly A comprises an oil supplementing one-way valve A and an overload overflow valve A which are connected into a whole in parallel; in the using process, the excavating unit and the supporting rod unit complete hydraulic oil circulation through the hydraulic channel; oil pressure adjustment is conducted through the pressure adjusting assembly A, it is guaranteed that excavation movement is conducted rapidly and stably, and unified specification production is facilitated.

A working machine, which may be a backhoe loader. has a body, a ground-engaging propulsion structure 16, an operator station 36 and an operator seat 19 moveable between a first position and a second p

1. The name of the design product: excavator cab (BL90-25). 2. The use of the design product: cab for loader. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view. 5. The rear view is omitted because the part of the design product is not easy to see or cannot be seen during use; the top view is omitted because the part of the design product is not easy to see or cannot be seen during use.

The utility model relates to the technical field of backhoe loaders, in particular to a supporting and limiting mechanism of a wheel type backhoe loader, which increases the supporting area of a machine body, ensures the stability during construction, improves the safety and is convenient to change working ends. Comprising a machine body, position adjusting assemblies are installed at the left end and the right end of the machine body, supporting assemblies are installed on the position adjusting assemblies, and each position adjusting assembly comprises a rotating rod, two bevel gears, a hydraulic motor, two sets of driven bevel gears, two threaded rods, two transverse telescopic arms, two sets of limiting plates and two sets of fixing bases; a seat plate is mounted at the top of the machine body through a steering assembly, and a damping assembly is mounted at the bottom of the seat plate.

This invention relates to an automatic retraction system for armored excavator loader (backhoe loader) vehicles, which allows the operator to retract the front boom, rear boom, stick, bucket, rotation mechanism, and stabilizing legs with a single button once the digging operation is completed and / or in emergency situations.

The utility model discloses a safety valve structure of a gearbox of a backhoe loader. The safety valve structure comprises a box body, a valve cover, a spring, a valve core, a locking bolt and a spring washer, the box body is provided with an oil drainage hole, a main oil duct and two threaded holes, and the main oil duct is located between an oil outlet of the variable-speed oil pump and an oil inlet of the pressure regulating valve; the valve cover is provided with a valve core hole; one end of the valve core is embedded into the oil drainage hole, and the other end is sleeved on the valve core hole of the valve cover; the spring is sleeved on the valve core and is positioned in the valve cover; and the valve cover is fastened on the box body by two locking bolts and a spring washer through two threaded holes. The pressure regulating valve is simple and compact in structure, convenient and efficient to assemble and long in service life, and solves the problem that other parts are damaged due to clamping stagnation of the pressure regulating valve core caused by substandard cleanliness of hydraulic transmission oil in the prior art.

The utility model relates to the technical field of engineering machines, in particular to a supporting leg structure and a backhoe loader. The supporting leg structure comprises a cylinder barrel, a piston rod, a first air bag, a second air bag and an air pressure assembly. The cylinder barrel is used for being connected with a vehicle body. A first air bag and a second air bag are arranged on the two sides of the piston rod respectively. The air pressure assembly controls the first airbag to inflate and the second airbag to exhaust so as to drive the piston rod to move away from the cylinder barrel. The air pressure assembly controls the second airbag to inflate and the first airbag to exhaust so as to drive the piston rod to move towards the cylinder barrel. According to the supporting leg structure and the backhoe loader, the supporting leg structure can bear acting force in the horizontal direction, the problems of sealing ring damage and hydraulic oil leakage are solved, and the reliability of the supporting leg structure is improved.

The invention belongs to the technical field of backhoe loaders, and discloses a swing oil cylinder of a backhoe loader, which comprises a cylinder body serving as a main body bearing structure of the swing oil cylinder and providing an accommodating space for internal hydraulic oil; the piston rod is connected to the middle of the cylinder body, reciprocates under the action of hydraulic oil and converts hydraulic energy into mechanical energy; the two oil ports are connected to the outer side of the cylinder body and are used as channels for hydraulic oil to enter and exit from the cylinder body; according to the swing oil cylinder of the backhoe loader, through cooperative operation of magnetic attraction and a mechanical structure, the sealing performance is remarkably improved, the anti-permeation sealing ring can be comprehensively extruded, a multi-layer sealing protection system is formed, in the operation process, the sealing performance of the swing oil cylinder is greatly improved, and the service life of the swing oil cylinder is prolonged. Tiny self-movement is formed through magnetic attraction, so that hydraulic oil leakage is effectively prevented, normal operation of equipment is guaranteed, and faults and pollution problems caused by leakage are reduced.

The utility model discloses an oil storage and suction device of a gearbox of a backhoe loader. A sealing box is welded at the upper end of a heightening frame; the overflow hole joint is inserted into and welded with an oil overflow hole formed in the left upper side of the sealing box; the oil inlet connector is inserted into and welded with an oil inlet formed in the top of the sealing box; an oil outlet joint is inserted into and welded with an oil outlet in the right lower side of the sealing box, the right end of the oil outlet joint is fixed with the left end of a transparent hose through a hose clamp, and the right end of the transparent hose is fixed with the left end of an oil suction pipe joint through a hose clamp; the outer circle of the oil suction pipe connector is connected with a fixing plate with four bolt holes in a welded mode, and the fixing plate is locked on the box body through four bolts and a gasket in the working process. And the O-shaped rubber ring is arranged on a sealing groove of an inner cavity at the right end of the oil suction pipe joint. The test device is simple and compact in structure, convenient to operate and reliable to use, and can prevent transmission oil in the oil tank from being polluted due to the contact between the transmission oil in the oil tank and the outer surfaces of the box body and the box cover casting when the gearbox of the backhoe loader simulates the bench test of the real use condition of the whole machine.

The utility model discloses a fuel and electric energy dual-energy driving system and a backhoe loader thereof, which belong to the technical field of vehicle engineering, and the fuel and electric energy dual-energy driving system comprises a power battery, a distribution box, a walking motor, a walking motor controller, a generator, a generator controller and a fuel engine, the walking motor drives the axle transmission shaft to rotate through the transfer case, the generator controller is electrically connected with the generator, and the generator is in driving connection with the fuel engine. The backhoe loader comprises the fuel and electric energy dual-energy driving system, and a hydraulic system of the backhoe loader is connected with an oil pump. Under the allocation of the distribution box, the power battery can be freely and flexibly matched with a power generation system formed by the fuel engine and the generator to provide power output, the power output is diversified, the problems of no charging and endurance time anxiety are solved, the fuel oil consumption is low, the use cost is reduced, the high-grade emission requirement can be met more easily, and the environment-friendly effect is achieved.

The invention provides an accelerator control method and device of a backhoe loader, and relates to the technical field of backhoe loaders. The method comprises the steps that in response to a received operation instruction for the loader-digger, the operation intention of the operation instruction is recognized according to the operation instruction, and the operation intention comprises digging or loading; an accelerator control mode corresponding to the operation intention is determined, the accelerator control mode is adopted to control an engine in the backhoe loader, and the accelerator control mode comprises a constant rotating speed control mode or a constant torque control mode. The operation intention of the driver is automatically recognized according to the operation signal of the driver, the corresponding accelerator control mode is accurately switched, the operation mode of operation is matched with the accelerator mode, and the dynamic property and economical efficiency of driving of the loader-digger are guaranteed.

The present disclosure relates to a backhoe loader energy recovery and reuse system and a control method thereof, and a backhoe loader, wherein the system comprises: an actuator, configured to drive a working device to perform an action with hydraulic oil as a medium, and having a first cavity and a second cavity; a reversing valve, having a first working oil port communicated with the first cavity and a second working oil port communicated with the second cavity, the reversing valve being configured to reverse the actuator; a stabilizing valve group, having a first oil port, a second oil port, a third oil port and a fourth oil port, the first oil port and the second oil port being communicated with the first cavity and the second cavity, respectively, and the third oil port being communicated with an oil tank; and an energy storage part, communicated with the fourth oil port and configured to store hydraulic energy; wherein the first oil port and the third oil port have a first communication state therebetween, in which the hydraulic oil in the first cavity can enter the oil tank; the second oil port and the fourth oil port can be selectively connected or disconnected, and in a connected state, the second cavity is communicated with the energy storage part.

The utility model relates to the field of backhoe loader vehicle throttle control, and discloses a backhoe loader throttle control switching circuit, which comprises a key electric power supply, a starting electric power supply, an engine ECU (Electronic Control Unit) controller, a normally open relay and a display instrument. Wherein the key electric power supply is connected with the engine ECU controller in parallel and is electrically connected with the normally open relay, and the display instrument is connected to the normally open relay. The engine ECU controller is further electrically connected with the loading pedal electronic accelerator and the digging knob fixed accelerator. According to the design, operation is easy and convenient, the speed of the loader and the excavator can be controlled through the electric signal voltage value, and meanwhile starting and running of the engine are effectively controlled through connection of the engine ECU controller, the key electric power source and the starting electric power source. In addition, the display instrument is immediately electrified after the engine is started, the convenience of an operator is improved, and necessary information related to the running state of the engine can be provided through electrical connection between the engine ECU controller and the display instrument.

The utility model provides a tool device for a hose fixing seat of a cab of a backhoe loader. The tool device comprises a base, a first supporting plate, a second supporting plate, a third supporting plate and a fourth supporting plate. During welding, a workpiece only needs to be placed on the tool device, so that the effect that the workpiece does not need to be held by hands is achieved, and the problem of low manual welding efficiency is solved. By adopting the tool device provided by the utility model, the welding operation is simple and safe, and the efficiency is improved. Practice proves that compared with a welding mode of manually measuring the size, the tool device is high in positioning precision and good in welding quality, and the welding efficiency of a single piece is improved.

This invention relates to an automatic retraction system for armored excavator loader (backhoe loader) vehicles, which allows the operator to retract the front boom, rear boom, stick, bucket, rotation mechanism, and stabilizing legs with a single button once the digging operation is completed and / or in emergency situations.

The utility model discloses an excavation type loader form relieved tooth convenient to disassemble and assemble, which relates to the technical field of form relieved teeth and specifically comprises a tooth body, one end of the tooth body is provided with a containing opening, the upper end and the lower end of the containing opening are connected with clamping plates, and two reinforcing ribs are symmetrically arranged on the sides, away from each other, of the two clamping plates. Reinforcing bases of strip-shaped structures are arranged on the upper surface and the lower surface of the tooth body, and the tail ends of the reinforcing ribs and the tail ends of the reinforcing bases are connected into a whole. A certain distance is arranged between the two reinforcing ribs on the same layer, the distance forms an installation groove, and a pin hole is formed in the clamping plate in the installation groove. When the shovel tooth is used, the reinforcing base and the two reinforcing ribs form a Y-shaped supporting mechanism, the tooth body can be effectively supported, the shovel tooth is prevented from being deformed and broken, and the strength of the shovel tooth is improved; and the pin hole is formed in the mounting groove, is perpendicular to the bottom of the bucket and is not parallel to the bottom of the bucket, so that the pin shaft can be conveniently inserted and detached.

A dual-purpose milling and digging tunneling loader is used for collecting and loading materials in urban underground pipe networks, highway bridges and culverts, water diversion projects, and underground mine tunnels. It consists of a working mechanism, a cab operation control mechanism, a hydraulic control system, a vehicle chassis travel mechanism, an electrical control system, and a material conveying mechanism; the milling and digging head or bucket assembly of the working mechanism is hingedly assembled on the forearm, and the bucket assembly is used for excavation when the material hardness is f≤3, and the milling and digging head is used for milling and digging when the material hardness is f≥3; the loader has a height of 1.4-1.6 meters and a width of 1.5-1.7 meters, and can be used for digging and loading in narrow pipe culverts and tunnels. The present invention can perform excavation operations and material loading in narrow pipe culvert tunnels, and the excavation method is dual-purpose. When the material hardness is f≤3, the bucket is used for excavation operations, and when the material hardness is f≥3, the milling and digging head is used for milling and digging operations. It can effectively reduce the risk of casualties and construction costs in manual operations, eliminate safety hazards, save energy in mechanical operations, improve excavation progress, and have high work efficiency.

The utility model discloses a novel cleaning type oil tank for a wheel type two-end-busy backhoe loader, which relates to the technical field of loaders and particularly comprises an oil tank body, and a filtering structure and a cooling structure are arranged at the top end of an inner cavity of the oil tank body from top to bottom. A tank cover is fixed to the top of an inner cavity of the oil tank body, an oil supplementing pipe and an oil returning pipe are arranged on the tank cover, an oil outlet pipe is fixed to one side of the oil tank body, and the bottom end of the oil outlet pipe extends to the bottom end of the inner cavity of the oil tank body. The cooling structure comprises a first cooling plate fixed to one end of an inner cavity of the oil tank body and a second cooling plate fixed to the other end of the inner cavity of the oil tank body. Through the arrangement of the rotating motor, the gear and the gear ring, the rotating motor can drive the filtering structure to rotate, hydraulic oil among impurities intercepted by the filtering structure can be rapidly separated from the impurities, rapid recovery of the hydraulic oil among the impurities is achieved, loss of the hydraulic oil is reduced, and the hydraulic oil filtering efficiency can be improved through rotation of the filtering structure.

The invention discloses an excavation end steering system of a backhoe loader and a control method. The system comprises an excavation end steering control component, an excavation end oil pumping branch and an excavation end oil return branch. If the vehicle-mounted controller receives a left steering signal output by the excavation end steering control component, the vehicle-mounted controller controls an excavation end oil pumping branch to be communicated with a left steering oil supply path and controls an excavation end oil return branch to be communicated with a right steering oil supply path; and if the vehicle-mounted controller receives a right steering signal output by the excavation end steering control component, the vehicle-mounted controller controls the excavation end oil pumping branch to be communicated with the right steering oil supply path and controls the excavation end oil return branch to be communicated with the left steering oil supply path. The excavating end steering system is additionally arranged on an existing excavating loader, the moving direction of the excavating loader can be directly controlled at the excavating end when the excavating end works, a driver does not need to operate a steering wheel on the back, and convenience and safety are achieved.

The utility model discloses a machining clamp for a torque converter shell of a backhoe loader. The machining clamp comprises a clamp body, a positioning mandrel, a stud, a nut, a supporting stud, an inner pressing plate, a first screw, a step nut, an outer pressing plate, a first cushion block, a second cushion block, a second screw, an outer stud and a positioning stud. The positioning mandrel is fixed at the upper end of the clamp body through four screws (1); the two cushion blocks (1) and the cushion block (2) are respectively fixed at the upper end of the clamp body through a screw (2); the stud is screwed into the threaded hole of the positioning mandrel and is fixed by a nut; the supporting stud, the outer stud and the positioning stud are screwed into threaded holes of the clamp body and fixed through nuts. The inner pressing plate penetrates into the stud through the U-shaped groove and is fixed by the step nut; the outer pressing plate penetrates into the outer stud through the U-shaped groove and is fixed through the step nut. The device is simple and compact in structure, low in manufacturing cost, high in machining precision of the torque converter shell of the backhoe loader and reliable to use, and solves the problem that the machining size of the torque converter shell in the prior art is out of tolerance.

The hydrostatic transmission structure comprises a walking motor, an engine, a walking pump, a transfer case and a walking driving device, the engine, the walking pump, the transfer case and the walking motor are sequentially arranged from left to right with the engine as the starting point, the left side of the walking pump is connected with the output end of the engine, and the right side of the walking pump is connected with the output end of the transfer case. The walking pump is connected with the walking motor through a connecting pipeline, the walking motor is connected with an input shaft on the right side of the transfer case, the walking driving device is located below the walking motor and connected with the transfer case, mechanical energy of an engine can be converted into hydraulic energy through the walking pump, and the hydraulic energy is converted into mechanical energy through the walking motor. And finally, the mechanical energy is transmitted to the walking driving device by virtue of the transfer case, so that the transmission efficiency of the backhoe loader can be improved, and the working efficiency of walking, excavating and loading is further improved.