CN220785896U - Mining explosion-proof power car steering mechanism - Google Patents
Mining explosion-proof power car steering mechanism Download PDFInfo
- Publication number
- CN220785896U CN220785896U CN202322331488.3U CN202322331488U CN220785896U CN 220785896 U CN220785896 U CN 220785896U CN 202322331488 U CN202322331488 U CN 202322331488U CN 220785896 U CN220785896 U CN 220785896U
- Authority
- CN
- China
- Prior art keywords
- steering
- cylinder
- proof power
- explosion
- mode switching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005065 mining Methods 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 239000003921 oil Substances 0.000 claims description 130
- 239000010720 hydraulic oil Substances 0.000 claims description 34
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000017105 transposition Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The utility model provides a mining explosion-proof power car steering mechanism, includes front axle and rear axle, includes steering cylinder, steering cylinder is the front axle steering cylinder that sets up on the front axle and the rear axle steering cylinder that sets up on the rear axle specifically, steering cylinder includes the cylinder body, is equipped with the piston in the cylinder body, be equipped with left and right two tie rods respectively in the cavity of piston left and right sides, the one end that the tie rod kept away from the piston passes the through-hole that the cylinder body tip corresponds respectively and stretches out, stretches out the end and installs on the steering spindle head of wheel through the universal joint, and the piston drives the tie rod and translates left and right along length direction, drives the wheel and deflects to corresponding direction; the beneficial effects of the utility model are as follows: through all set up steering cylinder and corresponding steering external member of intercommunication on vehicle front axle and rear axle, improved mining explosion-proof power car's mobility performance by a wide margin when guaranteeing the stability of traveling, improved colliery underground transportation efficiency.
Description
Technical Field
The utility model relates to the technical field of underground transportation equipment, in particular to a steering mechanism of a mining explosion-proof power vehicle.
Background
The mining explosion-proof power vehicle is used as indispensable equipment in the mine environment and is mainly used for material transportation and power supply tasks in the mine. In extreme working environments within mines, such vehicles must possess excellent stability and safety to address a variety of unpredictable challenges such as ramps, uneven terrain, narrow aisles, and potentially explosive environments. In order to ensure the safety of workers and the continuous and efficient performance of coal mine production, the mining explosion-proof power vehicles must meet strict technical requirements and standards.
However, under the current state of the art, existing steering mechanisms for mining vehicles often still employ conventional two-wheel steering designs, which have significant limitations in some cases. In particular, in a narrow passage and a limited space, the turning radius of the conventional two-wheel steering mechanism is large, and the steering is difficult to realize flexibly enough, so that the operation and the running of the vehicle are limited. This not only affects the operating efficiency of the vehicle, but may also increase the risk of accidents and hazards.
Therefore, to overcome these problems, a new, more flexible and efficient steering mechanism design is needed to meet the practical demands of the mine work environment.
Disclosure of Invention
The utility model aims to solve the technical problems of the prior art, provides a mining explosion-proof power vehicle steering mechanism with small turning radius and flexible maneuver,
in order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a mining explosion-proof power car steering mechanism, includes front axle and rear axle, its characteristics are: comprises a steering cylinder, in particular a front axle steering cylinder arranged at any side of the front axle and the rear axle steering cylinder arranged at any side of the rear axle,
the steering cylinder comprises a cylinder body, a piston is arranged in the cylinder body, a left steering tie rod and a right steering tie rod are respectively arranged in cavities on the left side and the right side of the piston, one end of the steering tie rod, which is far away from the piston, respectively penetrates through a through hole corresponding to the end part of the cylinder body and stretches out, the stretching end is arranged on a steering shaft head of a wheel through a universal joint, and the piston drives the steering tie rod to horizontally move along the length direction and drive the wheel to deflect towards the corresponding direction;
the left cavity and the right cavity of the steering cylinder are connected with a hydraulic oil way of the explosion-proof power vehicle through a steering mode switching valve and a steering direction control valve, the steering direction control valve is specifically a three-position four-way electromagnetic reversing valve and is provided with three working positions of left turning, stopping and right turning, the steering mode switching valve is specifically a three-position six-way electromagnetic reversing valve and is provided with three working positions of front steering, four-wheel steering and oblique steering,
the first working oil port I of the steering direction control valve is communicated with the first working oil port II and the third working oil port II of the steering mode switching valve, the second working oil port I of the steering direction control valve is connected with the right cavity of the front axle steering cylinder, the steering direction control valve is connected with a pressure port and an oil return port in an explosion-proof power vehicle hydraulic oil way,
the second and fourth working oil ports II of the steering mode switching valve are connected with the left cavity of the front axle steering cylinder, the fifth working oil port II of the steering mode switching valve is connected with the right cavity of the rear axle steering cylinder, the sixth working oil port II of the steering mode switching valve is connected with the left cavity of the rear axle steering cylinder,
when the steering mode switching valve is positioned at the front steering position and the steering direction control valve is positioned at the left turning position, the front wheel of the explosion-proof power vehicle deflects leftwards, the vehicle turns leftwards,
when the steering mode switching valve is positioned at the front steering position and the steering direction control valve is positioned at the right steering position, the front wheel of the explosion-proof power vehicle deflects rightwards and the vehicle turns rightwards,
when the steering mode switching valve is in four-wheel steering direction and the steering direction control valve is in left turning, the front wheel of the explosion-proof power vehicle deflects leftwards, the rear wheel deflects rightwards, the vehicle turns leftwards,
when the steering mode switching valve is in four-wheel steering direction and the steering direction control valve is in right turning direction, the front wheel of the explosion-proof power vehicle deflects rightwards, the rear wheel deflects leftwards, the vehicle turns rightwards,
when the steering mode switching valve is in a diagonal steering position and the steering direction control valve is in left turning position, the front wheels of the explosion-proof power vehicle deflect leftwards, the rear wheels deflect leftwards, the vehicle turns leftwards,
when the steering mode switching valve is in a diagonal steering position and the steering direction control valve is in a right turning position, the front wheels of the explosion-proof power vehicle deflect rightwards, the rear wheels deflect rightwards, the vehicle turns rightwards,
when the steering direction control valve is in the stop position, the front wheel and the rear wheel of the explosion-proof power vehicle do not deflect.
The technical problem to be solved by the utility model can be further solved by the steps that the steering shaft head is L-shaped, one end of the inner side of the steering shaft head is hinged with the axle through a first pin shaft, the other end of the inner side of the steering shaft head is hinged with one end of the universal joint through a second pin shaft, and the wheels are rotatably arranged on the outer side of the steering shaft head.
The technical problem to be solved by the utility model can be further solved by the following steps, wherein the universal joint is specifically a three-pin shaft type universal joint.
The technical problem to be solved by the utility model can be further solved by arranging a filter on the hydraulic oil path between the pressure port and the steering direction control valve of the explosion-proof power vehicle and arranging a one-way valve on the hydraulic oil path between the oil return port and the steering direction control valve of the explosion-proof power vehicle.
The technical problem to be solved by the utility model can be further solved by the following steps that the front axle steering oil cylinder is arranged at the rear side of the front axle, and the rear axle steering oil cylinder is arranged at the front side of the rear axle.
The technical problem to be solved by the utility model can be further solved by the following steps that a second working oil port II of the steering mode switching valve is connected with a first overflow loop, and the first overflow loop is provided with a first overflow valve; the fourth working oil port II of the steering mode switching valve is connected with a second overflow loop, and the second overflow loop is provided with a second overflow valve.
Compared with the prior art, the utility model has the beneficial effects that: through all setting up steering cylinder and corresponding steering external member of intercommunication on vehicle front axle and rear axle to through corresponding hydraulic valve control, can switch three kinds of steering modes of front wheel steering, four-wheel steering and diagonal steering according to the use needs, improved mining explosion-proof power car's mobility performance by a wide margin when guaranteeing driving stability, improved colliery underground transportation efficiency, greatly reduced manufacturing cost and workman intensity of labour.
Drawings
FIG. 1 is a schematic diagram of the hydraulic principle of the present utility model;
FIG. 2 is a front wheel steering mode schematic diagram of the present utility model;
FIG. 3 is a schematic diagram of a four-wheel steering mode of the present utility model;
FIG. 4 is a schematic view of a diagonal steering mode of the present utility model;
in the figure: 1-front axle; 2-a front axle steering cylinder; 3-rear axle; 4-a rear axle steering cylinder; 5-steering shaft heads; 6-steering mode switching valve; 7-steering direction control valve.
Detailed Description
Specific embodiments of the utility model are described further below in order for those skilled in the art to further understand the utility model without limiting the claims thereto.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model.
The mining explosion-proof power vehicle comprises a vehicle frame, wherein the front part of the vehicle frame is provided with a front axle, the rear part of the vehicle frame is provided with a rear axle, two ends of the front axle are connected with two front wheels, two ends of the rear axle are connected with two rear wheels, the rear wheels are connected with a walking motor arranged on the rear axle,
an engine cabin for installing an engine is arranged in the middle of the frame, a driving oil pump connected with an output end of the engine is arranged at the rear of the engine cabin, the output end of the driving oil pump is connected with a traveling motor through a first hydraulic rubber pipe, and the output end of the traveling motor is connected with a rear wheel of a vehicle through a rear axle differential mechanism to provide power for the rear wheel; the driving oil pump is also provided with a hydraulic oil conveying pipe which is connected with a driving mechanism on the self-driven carrier vehicle and provides power for the self-driven carrier vehicle,
the front cockpit is arranged on the frame at the left side of the engine, the rear cockpit is arranged on the frame at the right side of the engine, and the cockpit positions of the front cockpit and the rear cockpit are arranged towards the central axis of the frame in opposite directions; the control panel of the power vehicle is integrated in the front cockpit, the control panel of the self-driven carrying platform is integrated in the rear cockpit, when the power vehicle is connected with the self-driven carrying vehicle through a circuit oil way, a driver in the front cockpit controls the power vehicle to walk in front, and a driver in the rear cockpit controls the self-driven carrying vehicle to walk behind.
Referring to fig. 1-4, a steering mechanism of a mining explosion-proof power vehicle comprises a front axle 1 and a rear axle 3, and comprises steering cylinders, wherein the steering cylinders comprise a front axle steering cylinder 2 arranged on any side of the front axle and the rear axle steering cylinder 4 arranged on any side of the rear axle, the steering cylinders can be adjusted to the front side or the rear side of an axle according to the design requirement of a vehicle chassis, the position of a steering sleeve member such as a steering tie rod, a universal joint and the like is only required to be correspondingly adjusted, the front axle steering cylinder 2 is arranged on the rear side of the front axle 1 in the embodiment, and the rear axle steering cylinder 4 is arranged on the front side of the rear axle 3, and the following description is given according to the setting.
The steering cylinder comprises a cylinder body, a piston is arranged in the cylinder body, a left steering tie rod and a right steering tie rod are respectively arranged in cavities on the left side and the right side of the piston, one end of the steering tie rod is fixedly arranged on the piston, one end of the steering tie rod, which is far away from the piston, respectively penetrates through a through hole corresponding to the end of the cylinder body and stretches out, the stretching end is arranged on a steering shaft head 5 of a wheel through a universal joint, and the piston drives the steering tie rod to translate left and right along the length direction and drives the wheel to deflect towards the corresponding direction.
The left cavity and the right cavity of the steering cylinder are connected with a hydraulic oil way of the explosion-proof power vehicle through two hydraulic valves of a steering mode switching valve 6 and a steering direction control valve 7, the steering direction control valve 7 is specifically a three-position four-way electromagnetic reversing valve, three working positions of left turning (right in the figure), stopping (middle in the figure) and right turning (left in the figure) are arranged, the steering mode switching valve 6 is specifically a three-position six-way electromagnetic reversing valve, and three working positions of front steering (middle in the figure), four-wheel steering (left in the figure) and diagonal steering (right in the figure) are arranged, and the steering direction control valve 7 and the working position of the steering mode switching valve 6 are similarly changed when the position of the steering cylinder relative to a vehicle axle is changed, and when the front axle steering cylinder 2 and the rear axle steering cylinder 4 are respectively arranged at the rear sides of a front axle and a rear axle, the diagonal steering position of the steering mode switching valve 6 is the left in the figure, and the four-wheel steering position is the right in the figure.
The output end of the driving oil pump is connected with the steering oil cylinder through a second hydraulic rubber pipe and used as a pressure port in a hydraulic oil way of the explosion-proof power vehicle to provide pressure for the steering oil cylinder.
The first working oil port IH of the steering direction control valve 7 is communicated with the first working oil port IIA and the third working oil port IIC of the steering mode switching valve 6, the second working oil port IA of the steering direction control valve 7 is connected with the right cavity of the front axle steering cylinder 2, the pressure port P in the steering direction control valve 7 and the explosion-proof power vehicle hydraulic oil circuit is connected with the oil return port R, when the steering direction control valve 7 is in left turning, the first working oil port IH is connected with the oil return port R, and the second working oil port IA is connected with the pressure port P; when the steering direction control valve 7 is in right turning, the first working oil port IH is connected with the pressure port P, and the second working oil port IG is connected with the oil return port R. The steering direction control valve 7 can switch different working positions according to the rotation information of the steering wheel of the explosion-proof power vehicle, and the steering direction of the wheels is controlled by controlling the direction of an oil path, so that the left turn, the right turn and the straight running of the vehicle are realized.
The second working oil port IIB and the fourth working oil port IID of the steering mode switching valve 6 are connected with the left cavity of the front axle steering cylinder 2, the fifth working oil port IIE of the steering mode switching valve 6 is connected with the right cavity of the rear axle steering cylinder 4, the sixth working oil port IIF of the steering mode switching valve 6 is connected with the left cavity of the rear axle steering cylinder 4,
when the steering mode switching valve 6 is in the front steering direction and the steering direction control valve 7 is in the left turning direction, the front wheels of the explosion-proof power vehicle are deflected to the left, the vehicle turns to the left,
when the steering mode switching valve 6 is in front steering position and the steering direction control valve 7 is in right steering position, the front wheels of the explosion-proof power vehicle are deflected to the right, the vehicle is turned to the right,
specifically, when the steering mode switching valve 6 is in the front steering direction (middle position in the figure), the second working oil port IIB, the third working oil port IIC, the fifth working oil port IIE and the sixth working oil port IIF are separated, the first working oil port IIA is connected with the fourth working oil port IID, the piston of the front axle steering cylinder 2 moves, the piston of the rear axle steering cylinder 4 stands by,
when the steering direction control valve 7 is at left turning position (right position in the figure), the first working oil port IH is an oil inlet, hydraulic oil is input from the pressure port P, sequentially passes through the first working oil port IH of the steering direction control valve 7, the first working oil port IIA and the fourth working oil port IID of the steering mode switching valve 6 and then enters the left cavity of the front axle steering cylinder 2, the piston of the front axle steering cylinder 2 moves rightwards under the pushing of pressure to drive the steering tie rod to move rightwards, the wheels are pulled to deviate leftwards, the vehicle turns leftwards, and the hydraulic oil in the right cavity of the front axle steering cylinder 2 flows out from the oil return port R through the second working oil port Ig;
when the steering direction control valve 7 is at right turning position (left position in the figure), hydraulic oil is input from the pressure port P, flows into the right cavity of the front axle steering cylinder 2 through the second working port IG of the steering direction control valve 7, the piston of the front axle steering cylinder 2 moves leftwards under the pushing of pressure to drive the steering tie rod to move leftwards, the front wheels are pulled to shift rightwards, the vehicle turns rightwards, and the hydraulic oil in the left cavity of the front axle steering cylinder 2 flows out from the oil return port R through the fourth working port IID of the steering mode switching valve 6, the first working port IIA and the first working port IH of the steering direction control valve 7 in sequence.
When the steering mode switching valve 6 is in four-wheel steering direction and the steering direction control valve 7 is in left turning direction, the front wheels of the explosion-proof power vehicle deflect leftwards, the rear wheels deflect rightwards, the vehicle turns leftwards,
when the steering mode switching valve 6 is in four-wheel steering direction and the steering direction control valve 7 is in right turning direction, the front wheels of the explosion-proof power vehicle deflect rightwards, the rear wheels deflect leftwards, the vehicle turns rightwards,
specifically, when the steering mode switching valve 6 is in the four-wheel steering mode, the first working oil port IIA and the fourth working oil port IID are separated, the second working oil port IIB and the fifth working oil port IIE are communicated, the third working oil port IIC and the sixth working oil port IIF are communicated, the pistons of the front and rear axle steering cylinders 2 and 4 move in the same direction,
when the steering direction control valve 7 is in left turning, the first working oil port IH is an oil inlet, hydraulic oil is input from the pressure port P, sequentially enters the left cavity of the rear axle steering oil cylinder 4 through the third working oil port IIC and the sixth working oil port IIF, the piston of the rear axle steering oil cylinder 4 moves rightwards under the pushing of pressure to drive the steering tie rod to move rightwards, the hydraulic oil in the right cavity of the rear axle steering oil cylinder 4 is pulled to shift rightwards, sequentially flows into the left cavity of the front axle steering oil cylinder 2 through the fifth working oil port IIE and the second working oil port IIB, pushes the piston of the front axle steering oil cylinder 2 to move rightwards, the front wheel shifts leftwards, and the hydraulic oil in the right cavity of the front axle steering oil cylinder 2 flows out from the oil return port R through the second working oil port IIG;
when the steering direction control valve 7 is in right transposition, hydraulic oil is input from a pressure port P, a second working oil port I G passing through the steering direction control valve 7 flows into a right cavity of the front axle steering cylinder 2, a piston of the front axle steering cylinder 2 moves leftwards under the pushing of pressure to drive the steering tie rod to move leftwards, the front wheels are pulled to deviate rightwards, hydraulic oil in the right cavity of the front axle steering cylinder 2 flows into a right cavity of the rear axle steering cylinder 4 sequentially through a second working oil port IIB and a fifth working oil port IIE, the piston of the rear axle steering cylinder 4 moves leftwards under the pushing of pressure to drive the steering tie rod to move leftwards, the rear wheels are pulled to deviate leftwards, and the hydraulic oil in the left cavity of the rear axle steering cylinder 4 flows out from an oil return port R sequentially through a sixth working oil port IIF, a third working oil port IIC and a first working oil port IH.
When the steering mode switching valve 6 is in a diagonal steering position and the steering direction control valve 7 is in left turning position, the front wheels of the explosion-proof power vehicle deflect leftwards, the rear wheels deflect leftwards, the vehicle turns leftwards,
when the steering mode switching valve 6 is in a diagonal steering position and the steering direction control valve 7 is in a right turning position, the front wheels of the explosion-proof power vehicle deflect rightwards, the rear wheels deflect rightwards, the vehicle turns rightwards,
specifically, when the steering mode switching valve 6 is in the inclined steering position, the first working oil port IIA and the fourth working oil port IID are separated, the third working oil port IIC and the fifth working oil port IIE are communicated, the sixth working oil port IIF and the second working oil port IIB are communicated, the pistons of the front and rear axle steering cylinders 2 and 4 move oppositely,
when the steering direction control valve 7 is in left turning, the first working oil port I H is an oil inlet, hydraulic oil is input from the pressure port P, sequentially passes through the first working oil port I H, the third working oil port II C and the fifth working oil port II E and enters the right cavity of the rear axle steering oil cylinder 4, the piston of the rear axle steering oil cylinder 4 is pushed to move leftwards under the pressure pushing, the steering tie rod is driven to move leftwards, the rear wheels are pulled to deviate leftwards, hydraulic oil in the left cavity of the rear axle steering oil cylinder 4 sequentially passes through the sixth working oil port II F and the second working oil port II B and enters the left cavity of the front axle steering oil cylinder 2, the piston of the front axle steering oil cylinder 2 is pushed to move rightwards under the pressure pushing, the steering tie rod is driven to move rightwards, the front wheels are pulled to deviate leftwards, and the hydraulic oil in the right cavity of the front axle steering oil cylinder 2 flows out of the oil return port R through the second working oil port I G;
when the steering direction control valve 7 is in right transposition, hydraulic oil is input from a pressure port P, a second working oil port I G passing through the steering direction control valve 7 flows into a right cavity of the front axle steering cylinder 2, a piston of the front axle steering cylinder 2 moves leftwards under the pushing of pressure to drive a steering tie rod to move leftwards, a front wheel is pulled to deviate rightwards, hydraulic oil in the right cavity of the front axle steering cylinder 2 sequentially passes through a second working oil port IIB and a sixth working oil port IIF to enter a left cavity of the rear axle steering cylinder 4, the piston of the rear axle steering cylinder 4 moves rightwards under the pushing of pressure to drive the steering tie rod to move rightwards, the rear wheel is pulled to deviate rightwards, and the hydraulic oil in the right cavity of the rear axle steering cylinder 4 sequentially flows out from an oil return port R through a fifth working oil port IIE, a third working oil port IIC and a first working oil port IH.
When the steering direction control valve 7 is in a stop position, the first working oil port IH and the second working oil port Ig are separated from the pressure port P and the oil return port R, and at the moment, the piston in the front and rear axle steering cylinder 4 is kept motionless, and the front wheel and the rear wheel of the explosion-proof power vehicle are not deflected.
Further, the steering shaft head 5 is L-shaped, one end of the inner side of the steering shaft head 5 is hinged with the axle through a first pin shaft, the other end of the inner side of the steering shaft head 5 is hinged with one end of the universal joint through a second pin shaft, and the wheels are rotatably arranged on the outer side of the steering shaft head 5. The steering angle of the wheels can be increased due to the hinged design of the two ends, and the flexibility of the whole vehicle is further enhanced.
Further, the universal joint is specifically a three-pin type universal joint. Compared with other universal joints, the three-pin shaft type universal joint has the advantages of large angle compensation, strong torque transmission capability, high use stability and the like, and the steering flexibility and stability of the vehicle can be further enhanced by the three-pin shaft type universal joint.
Further, a filter is installed on the hydraulic oil path between the pressure port of the explosion-proof power vehicle and the steering direction control valve 7, and a check valve is installed on the hydraulic oil path between the oil return port of the explosion-proof power vehicle and the steering direction control valve 7. The service life of hydraulic elements such as steering cylinders can be prolonged on the one hand, and the stability of the whole hydraulic system can be improved on the other hand.
Further, the front axle steering cylinder 2 is mounted on the rear side of the front axle, and the rear axle steering cylinder 4 is mounted on the front side of the rear axle. The arrangement is favorable for optimizing the layout of the chassis and improving the space utilization rate.
Further, a first overflow loop is connected to the second working oil port IIB of the steering mode switching valve 6, and a first overflow valve is installed on the first overflow loop; the fourth working oil port ii D of the steering mode switching valve 6 is connected with a second overflow loop, and the second overflow loop is provided with a second overflow valve. The hydraulic circuit can be prevented from being overloaded by the arrangement, and the overall stability is improved.
Further, the tail middle part fixed mounting of mining explosion-proof power car has articulated seat, and articulated seat is used for being connected with the buffering connecting rod, and then is connected with the self-driven carrier vehicle at power car rear through the buffering connecting rod, and two cars adopt articulated setting for the at utmost promotes whole flexibility ratio when guaranteeing the oil circuit and connects. It is obvious that the present utility model is not limited to the self-driven car and the buffer connecting rod, and the hinge seat can be connected to the common unpowered car hopper or the car through the common connecting rod or other connecting devices such as the iron chain.
Further, the front cockpit sets up in the frame front side, the back cockpit sets up in the frame rear side, so two cabs crisscross setting make the driver can see the visual field that the power car subtended clearly, and the dead zone is reduced to a greater extent. The front cockpit for controlling the power vehicle to walk is arranged in front, so that the conventional operation habit is more met; the rear cockpit of the self-driven carrier vehicle is controlled to be arranged behind, so that the running track of the self-driven carrier vehicle can be observed in a shorter distance, and a driver can conveniently adjust and correct the running track.
Further, a hydraulic oil tank is arranged on the frame behind the front cockpit, the hydraulic oil tank is connected with a driving oil pump through a connecting oil way, and the hydraulic oil tank is used as an oil return port of the explosion-proof power vehicle to be connected with a steering oil cylinder for recovering hydraulic oil flowing out of a cavity of the steering oil cylinder.
Furthermore, the engine is longitudinally arranged in the engine cabin, so that the whole vehicle layout is more facilitated, and the size of the vehicle body is reduced.
According to the steering mechanism, the steering oil cylinders and the corresponding steering external members which are mutually communicated are arranged on the front axle and the rear axle of the vehicle, and the steering mechanism is controlled by the corresponding hydraulic valves, so that three steering modes of front wheel steering, four-wheel steering and diagonal steering can be switched according to the use requirements. Specifically, the front wheel steering mode has larger turning radius, general flexibility but stronger stability, and is suitable for high-speed running on a wide road; the turning radius of the four-wheel steering mode is smaller, the stability is general, but the flexibility is extremely high, and the four-wheel steering mode is suitable for low-speed driving in narrow roadways or in-situ turning; the inclined steering mode is mainly used for working conditions such as getting rid of poverty or keeping the vehicle head to park in an angle side direction. Based on the special steering mechanism, a driver can flexibly switch the steering mode of the vehicle according to different use conditions, so that the power vehicle can flexibly shuttle in a rugged and complex roadway in a coal mine well at a high speed, and the transportation efficiency is greatly improved.
If only conventional goods or personnel need to be loaded, only the front cockpit is needed to participate in the work, and the rear cockpit can be used as a passenger cabin. The driver connects the carrying hopper or carrying carriage with the hinging seat at the tail of the power vehicle through the connecting device, and enters the front cab after confirming safety, and operates the power vehicle to walk at a stable speed to transport goods or personnel to a designated position.
If large mining equipment such as a coal mining machine and the like needs to be transported, the front cockpit and the rear cockpit need to participate in work. Two drivers need to connect the headstock of the self-driven carrier vehicle with the hinging seat at the tail part of the power vehicle through a buffer connecting rod, connect corresponding circuit oil ways of the two vehicles, and confirm that the two persons enter the front and rear cabins respectively after connection is finished, the driver in the front cab operates the power vehicle to walk in advance, the driver in the rear cab operates the self-driven carrier vehicle to walk behind, and large-scale cargoes loaded on the self-driven carrier vehicle are safely and efficiently transported to a designated place.
It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The technical solutions not specifically described in the present utility model all belong to common general knowledge.
Claims (6)
1. The utility model provides a mining explosion-proof power car steering mechanism, includes front axle and rear axle, its characterized in that: comprises a steering cylinder, in particular a front axle steering cylinder arranged at any side of the front axle and the rear axle steering cylinder arranged at any side of the rear axle,
the steering cylinder comprises a cylinder body, a piston is arranged in the cylinder body, a left steering tie rod and a right steering tie rod are respectively arranged in cavities on the left side and the right side of the piston, one end of the steering tie rod, which is far away from the piston, respectively penetrates through a through hole corresponding to the end part of the cylinder body and stretches out, the stretching end is arranged on a steering shaft head of a wheel through a universal joint, and the piston drives the steering tie rod to horizontally move along the length direction and drive the wheel to deflect towards the corresponding direction;
the left cavity and the right cavity of the steering cylinder are connected with a hydraulic oil way of the explosion-proof power vehicle through a steering mode switching valve and a steering direction control valve, the steering direction control valve is specifically a three-position four-way electromagnetic reversing valve and is provided with three working positions of left turning, stopping and right turning, the steering mode switching valve is specifically a three-position six-way electromagnetic reversing valve and is provided with three working positions of front steering, four-wheel steering and oblique steering,
the first working oil port I of the steering direction control valve is communicated with the first working oil port II and the third working oil port II of the steering mode switching valve, the second working oil port I of the steering direction control valve is connected with the right cavity of the front axle steering cylinder, the steering direction control valve is connected with a pressure port and an oil return port in an explosion-proof power vehicle hydraulic oil way,
the second and fourth working oil ports II of the steering mode switching valve are connected with the left cavity of the front axle steering cylinder, the fifth working oil port II of the steering mode switching valve is connected with the right cavity of the rear axle steering cylinder, the sixth working oil port II of the steering mode switching valve is connected with the left cavity of the rear axle steering cylinder,
when the steering mode switching valve is positioned at the front steering position and the steering direction control valve is positioned at the left turning position, the front wheel of the explosion-proof power vehicle deflects leftwards, the vehicle turns leftwards,
when the steering mode switching valve is positioned at the front steering position and the steering direction control valve is positioned at the right steering position, the front wheel of the explosion-proof power vehicle deflects rightwards and the vehicle turns rightwards,
when the steering mode switching valve is in four-wheel steering direction and the steering direction control valve is in left turning, the front wheel of the explosion-proof power vehicle deflects leftwards, the rear wheel deflects rightwards, the vehicle turns leftwards,
when the steering mode switching valve is in four-wheel steering direction and the steering direction control valve is in right turning direction, the front wheel of the explosion-proof power vehicle deflects rightwards, the rear wheel deflects leftwards, the vehicle turns rightwards,
when the steering mode switching valve is in a diagonal steering position and the steering direction control valve is in left turning position, the front wheels of the explosion-proof power vehicle deflect leftwards, the rear wheels deflect leftwards, the vehicle turns leftwards,
when the steering mode switching valve is in a diagonal steering position and the steering direction control valve is in a right turning position, the front wheels of the explosion-proof power vehicle deflect rightwards, the rear wheels deflect rightwards, the vehicle turns rightwards,
when the steering direction control valve is in the stop position, the front wheel and the rear wheel of the explosion-proof power vehicle do not deflect.
2. The mining explosion-proof power car steering mechanism as set forth in claim 1, wherein: the steering shaft head is L-shaped, one end of the inner side of the steering shaft head is hinged with the axle through a first pin shaft, the other end of the inner side of the steering shaft head is hinged with one end of the universal joint through a second pin shaft, and the wheels are rotatably arranged on the outer side of the steering shaft head.
3. The mining explosion-proof power car steering mechanism as set forth in claim 1, wherein: the universal joint is specifically a three-pin shaft type universal joint.
4. The mining explosion-proof power car steering mechanism as set forth in claim 1, wherein: a filter is arranged on a hydraulic oil path between a pressure port of the explosion-proof power vehicle and the steering direction control valve, and a one-way valve is arranged on the hydraulic oil path between an oil return port of the explosion-proof power vehicle and the steering direction control valve.
5. The mining explosion-proof power car steering mechanism as set forth in claim 1, wherein: the front axle steering cylinder is arranged at the rear side of the front axle, and the rear axle steering cylinder is arranged at the front side of the rear axle.
6. The mining explosion-proof power car steering mechanism as set forth in claim 1, wherein: the second working oil port II of the steering mode switching valve is connected with a first overflow loop, and the first overflow loop is provided with a first overflow valve; the fourth working oil port II of the steering mode switching valve is connected with a second overflow loop, and the second overflow loop is provided with a second overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322331488.3U CN220785896U (en) | 2023-08-29 | 2023-08-29 | Mining explosion-proof power car steering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322331488.3U CN220785896U (en) | 2023-08-29 | 2023-08-29 | Mining explosion-proof power car steering mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220785896U true CN220785896U (en) | 2024-04-16 |
Family
ID=90666201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322331488.3U Active CN220785896U (en) | 2023-08-29 | 2023-08-29 | Mining explosion-proof power car steering mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220785896U (en) |
-
2023
- 2023-08-29 CN CN202322331488.3U patent/CN220785896U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102963457B (en) | Short combination drive trackless rubber-tyred transport trolley | |
| CN103963825A (en) | Steering system and independent suspension wheel type overload vehicle | |
| CN103847820B (en) | A kind of crawler belt and wheeled switchable walking chassis | |
| CN110254558B (en) | Integral frame type carrier | |
| CN202641378U (en) | Coalmine transport cart capable of running in inclined shaft tunnel in two directions | |
| CN104724166A (en) | Hydraulic suspension heavy-load transportation vehicle | |
| CN103287491A (en) | Control system for compliance steer of roadway trackless wheeled hydraulic power vehicle group | |
| CN102785694B (en) | Hydraulic system for controlling vehicle to realize two-way travelling | |
| CN203581098U (en) | Four-wheel full-driving automobile pivot steering system | |
| CN220785896U (en) | Mining explosion-proof power car steering mechanism | |
| CN114312993A (en) | Four-wheel full hydraulic steering system of unmanned off-highway dump truck | |
| CN202896293U (en) | Short type combination-drive trackless rubber-wheel transport cart | |
| CN202657130U (en) | Double-head shuttle bus and head-changing driving switching device thereof | |
| CN220785947U (en) | Mining explosion-proof power source vehicle | |
| CN204222964U (en) | Wagon drill | |
| CN104015797A (en) | Gadding car | |
| CN215756196U (en) | Pneumatic crawler-type forklift | |
| CN102874309A (en) | Crane as well as steering system and rocker arm thereof | |
| CN113771942B (en) | Steering control system and working machine | |
| CN105857068B (en) | A kind of tractor trailer drive train | |
| CN101498217A (en) | Split type remote operation ultra-low laneway coal mining apparatus transportation platform | |
| CN201520989U (en) | Single-arm slide moving steering loading machine | |
| CN110843908B (en) | Narrow mining trackless vehicle power bogie and walking steering control system | |
| CN113184755A (en) | Pneumatic crawler-type forklift and method | |
| CN204110141U (en) | Steering swivel system and hoisting crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |