A hydraulic active type car pressing side tipping car dumper and its dumping method

Abstract

The present application relates to the technical field of dumper, and proposes a hydraulic active type car pressing side tipping dumper and its dumping method, comprising an end disc, a car leaning beam, a car supporting platform and a car pressing mechanism, the end disc can rotate around its rotation center; the car leaning beam is fixed on the inner side of the end disc and is located on the extension line of the rotation center of the end disc, the car leaning beam comprises a car leaning surface, the car leaning surface is used for abutting the outer side wall of the open car and supporting the open car during the unloading process of the open car. The hydraulic active type car pressing side tipping dumper and its dumping method replace the traditional mechanical type car pressing with a car pressing oil cylinder, set an inclined angle between the car leaning surface and the open car, actively press the car by the hydraulic mode, can provide sufficient pressing force, so that the car is safe and reliable during the dumping process, at the same time, the hydraulic car pressing can solve the tooth skipping problem of the original mechanical type car pressing, and guarantee the dumping efficiency and safety of the dumper.

Description

Technical Field

[0001] This invention relates to the field of tippler technology, and in particular to a hydraulically active tippler for tilting and unloading vehicles and its tipping method. Background Technology

[0002] Open wagons are a type of railway freight car characterized by their open roof and four-sided side panels, two of which have fold-down side doors for easy unloading. This type of wagon is primarily used for transporting bulk goods such as coal or ballast that are not susceptible to weathering. Open wagons are mainly used for transporting bulk goods such as coal, ore, mining construction materials, timber, and steel, and can also be used to transport lighter machinery. By covering the loaded cargo with waterproof tarpaulins or other coverings, they can replace covered wagons for transporting goods sensitive to rain. When transporting bulk materials such as coal and ore, open wagons typically use tippers to improve unloading efficiency. A tipper is a large piece of machinery used to unload bulk materials from railway open wagons. It is a loading and unloading machine that can tilt or overturn rail vehicles for unloading, and is suitable for ports with high transport volumes and industrial sectors such as metallurgy, coal, and thermal power.

[0003] Traditional side-tilting type II tippers use a purely mechanical pressing device. The locking mechanism of the pressing device relies on the interaction between its own pawl and the ratchet teeth of the end plate. However, this requires very high installation precision for the pawl and ratchet teeth. If the meshing positions of the pawl and ratchet teeth at both ends are not synchronized, it is easy for the teeth to jump. As a result, safety accidents such as car derailment may occur during the tipping process. At the same time, tippers with this pressing device structure are passive mechanical stepped pressing devices, which cannot achieve adaptive pressing of open cars at any height. The pressing force applied to the car is variable and uncontrollable. This can lead to insufficient pressing force, which seriously affects the reliability of the tipper, reduces working efficiency, and affects the unloading operation. Summary of the Invention

[0004] In view of this, the present invention proposes a hydraulic active car-tilting tipper and its tipping method, which replaces the current passive ratchet and pawl car-tilting scheme with a hydraulic car-tilting scheme. This not only solves the problem of skipped teeth, but also solves the problem of insufficient car-tilting force preventing the car from passing inspection. At the same time, the new hydraulic tipper has a simple structure and is easy to install and maintain.

[0005] The technical solution of this invention is implemented as follows:

[0006] On one hand, the present invention provides a hydraulically active vehicle-tilting tipper, comprising an end plate, a support beam, a trailer platform, and a vehicle-tilting mechanism, wherein,

[0007] The end plate can rotate around its center of rotation;

[0008] The car support beam is fixed to the inside of the end plate and located on the extension line of the end plate's rotation center. The car support beam includes a car support surface, which is used to fit against the outer side wall of the open wagon and to support it during the unloading process of the open wagon.

[0009] The trailer platform is set on the end plate and can rotate around the rotation center with the end plate. The trailer platform is connected to the open wagon track so that the open wagon can be moved onto the trailer platform and the open wagon can be tilted and unloaded following the trailer platform.

[0010] The pressing mechanism includes a pressing arm, a balance beam, and a pressing cylinder. The pressing arm is hinged to the backing beam, allowing the pressing mechanism to rotate relative to the backing beam toward the open wagon. The balance beam is hinged to one end of the pressing arm. The fixed end of the pressing cylinder is hinged to the backing beam, and the movable end is hinged to the pressing arm. The pressing cylinder is used to push the pressing arm to rotate relative to the backing beam, so that the balance beam abuts against the open side of the open wagon, thereby pressing the open wagon tightly onto the trailer platform.

[0011] When the open wagon is parked on the trailer platform and has not been overturned, the outer wall of the open wagon used to fit against the trailer beam and the trailer surface have an oblique angle, which is an acute angle.

[0012] When the open wagon rotates a certain angle around the rotation center of the end plate following the trailer platform, the tilt angle becomes zero, and the pressure cylinder pushes the equalizing beam to move toward the open side of the open wagon.

[0013] Based on the above technical solutions, preferably, it also includes a vehicle approach detection device, which is installed on the vehicle approach beam and has a detection movable end. The detection movable end can move perpendicular to the vehicle approach surface. The detection movable end is used to contact the open wagon and moves to the vehicle approach surface when the angle of approach becomes zero.

[0014] More preferably, the vehicle approach detection device includes a movable rod, an elastic element, and a positioning probe, wherein,

[0015] The movable rod is mounted on the back beam and can move perpendicular to the back surface. One end of the movable rod is used to contact the open wagon.

[0016] One end of the elastic element is fixed to the back beam, and the other end is fixed to the movable rod. The elastic element is used to push the movable rod out of the back surface after the open wagon leaves the back surface.

[0017] The positioning probe is fixed on the side beam. The positioning probe has a detection end, which is used to detect the position of the movable rod. When the tilt angle becomes zero, the end of the movable rod away from the open wagon is located outside the detection end.

[0018] Based on the above technical solutions, preferably, it also includes a positioning component, which is fixed relative to the ground and abuts against the trailer platform. The positioning component is used to support the trailer platform when the tipper is not tipping over.

[0019] More preferably, the trailer platform includes a first support part and a second support part, wherein,

[0020] The first support is set on the ground and can rotate and shift relative to the end plate as the open wagon comes into contact with the abutment beam;

[0021] The second support is fixed relative to the first support. The second support is used to hold the positioning member when the tipper is not tipping over, so as to support the trailer platform.

[0022] More preferably, it also includes a stabilizing device, which is mounted on the end plate. The stabilizing device includes a movable support end, which is used to provide stable support for the trailer platform when the open wagon is against the trailer beam and the balance beam is not in contact with the open wagon.

[0023] More preferably, the stabilizing device includes a support base, which is fixed to the inside of the end plate. The movable support end of the stabilizing device is slidably disposed on the support base. The trailer platform also includes a third support part, which is fixed relative to the first support part. The support base is used to support the third support part in conjunction with the stabilizing device after the open wagon is in contact with the abutment beam.

[0024] More preferably, the stabilizing device further includes a wedge, a stabilizing cylinder, and a top block, wherein,

[0025] The wedge is mounted on the support base and can slide relative to the support base. The wedge is provided with a stabilizing inclined surface.

[0026] The fixed end of the stabilizing cylinder is hinged to the end plate, and the movable end is connected to the wedge block drive.

[0027] The top block is slidably disposed inside the end plate, and one end abuts against the stabilizing inclined surface of the wedge block. The stabilizing cylinder is used to push the wedge block so that the other end of the top block abuts against the third support part under the action of the stabilizing inclined surface.

[0028] Based on the above technical solutions, preferably, the angle of the leaning angle is 4°-7°. When the open wagon is parked on the trailer platform and the end plate is not flipped, the end plate is in the initial position. When the leaning angle changes from an acute angle to zero, there is an angle of 25°-35° between the current position and the initial position of the end plate.

[0029] On the other hand, the present invention provides a method for unloading a hydraulically active tilting tipper, based on the aforementioned tilting tipper, comprising the following steps:

[0030] After the S1 heavy-duty open wagon is moved onto the trailer platform, the end plate is in the initial position;

[0031] The S2 end plate drives the trailer platform and the heavy-duty open wagon to rotate around the rotation center, so that the outer side wall of the open wagon is in contact with the back surface of the back beam;

[0032] After the outer wall of the S3 open wagon is in contact with the back surface of the back beam, the end plate continues to drive the open wagon to rotate. The end plate drives the open wagon to rotate through the trailer platform. The pressure cylinder pushes the pressure arm to rotate relative to the back beam, so that the equalization beam contacts and presses the open side of the open wagon before the end plate flips from the initial position to the first position. The first position of the end plate has an 80° angle with the initial position.

[0033] After the S4 equalizing beam presses tightly against the open wagon, the end plate continues to flip to the second position, completing the upright flip and unloading the material inside the open wagon. The second position of the end plate has an angle of 140°-160° with the initial position.

[0034] After the materials in the S5 open wagon are unloaded, the end plate is flipped back to the third position. The pressure cylinder begins to release pressure and the pressure arm rotates relative to the back beam so that the equalization beam moves away from the open wagon. The third position of the end plate has an angle of 60°-80° with the initial position.

[0035] After the S6 equalizer beam leaves the open wagon, the end plate continues to flip back until it returns to its initial position.

[0036] The hydraulically active tilting tipper and its unloading method of the present invention have the following advantages over the prior art:

[0037] (1) By replacing the traditional mechanical pressing with pressing cylinders and setting an angle between the car-side surface and the open car, the hydraulic pressing can provide sufficient clamping force, making the car body safe and reliable during the unloading process. At the same time, the hydraulic pressing can solve the problem of tooth skipping of the original mechanical pressing, ensuring the unloading efficiency and safety of the tipper. The angled angle allows the open car to reduce the offset distance by rotating at a small angle, so as to adapt to open cars of different widths for car-side pressing, and at the same time improve the stability of the hydraulic active pressing.

[0038] (2) By setting up a car-to-car detection device, the open wagon will contact the detection movable end during the process of coming close to the car-to-car surface and push the detection movable end toward the car-to-car surface. When the detection movable end moves to a certain distance, that is, when the open wagon is completely close to the car-to-car surface, the sensor of the car-to-car detection device will obtain the open wagon positioning signal, and then drive the pressing cylinder to act. This setting can drive the pressing cylinder to perform pressing operation in time after the car is in position and apply stable pressure to the open wagon, ensuring that open wagons of different widths can be pressed stably. (3) A large gap will be reserved between the third support part and the support seat in advance to allow the trailer platform to rotate at a small angle relative to the end plate. After rotation, since the third support part cannot directly contact the support seat, this solution uses a stabilizing device to adjust the length within the gap through the movable support end to compensate, so that the third support part can form a stable support relationship with the support seat through the movable support end, thereby avoiding the problem of uneven active pressing pressure caused by the deflection gap, which leads to problems such as open wagon derailment. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the side-tilting tipper of the hydraulic active vehicle pressing machine of the present invention;

[0041] Figure 2 This is a schematic diagram of the vehicle-pressing mechanism of the hydraulic active vehicle-pressing tipper of the present invention;

[0042] Figure 3 This is a schematic diagram of the stabilization device of the hydraulic active vehicle tilting tipper of the present invention;

[0043] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0044] Figure 5 This is a schematic diagram of the hydraulic active crusher after the side-tilting tipper end plate of the present invention has been flipped.

[0045] Figure 6 This is a side view of the hydraulic active vehicle tilting tipper of the present invention. Detailed Implementation

[0046] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0047] like Figure 1-6 As shown, the hydraulic active vehicle tilting tipper of the present invention includes an end plate 1, a vehicle support beam 2, a vehicle support platform 3, and a vehicle tilting mechanism 4.

[0048] There are two end plates 1, and the two end plates 1 can rotate synchronously around the rotation center. Specifically, a tipping motor and a support are also provided on the tipping machine. A connecting shaft is provided on the support and is located at the rotation center of the end plate 1 so that the end plate 1 can rotate around the rotation center. The output end of the tipping motor is connected to the edge of the end plate 1 for transmission, thereby driving the end plate 1 to rotate accordingly. Since the open wagon does not need to rotate 360 ​​degrees during tipping operations, the end plate does not need to be set as a complete disc. It is only necessary to set the arc according to the maximum tipping angle.

[0049] The abutment beam 2 is fixed to the inner side of the end plate 1. It should be noted that since there are two end plates 1, and the abutment beam 2 is set between the two end plates 1, the inner side refers to the inner side of the two end plates facing each other. The abutment beam 2 is provided with an abutment surface 201, which is used to fit against the outer wall of the open wagon and support it during the unloading process. The abutment beam 2 needs to withstand a large pressure during the overturning of the open wagon. In order to make the pressure transmitted to the connecting shaft more even, the abutment beam 2 is set at the rotation center of the end plate 1 to improve mechanical stability.

[0050] Since different open wagons have different widths, the distance between the open wagon and the backing beam 2 and the backing surface 201 is not completely equal during the parking process. In order to avoid excessive offset when the open wagon is against the backing beam 2, in this embodiment, the backing surface 201 is set as an inclined surface. When the open wagon is parked and has not been overturned, the backing surface 201 and the outer wall of the open wagon form an inclined angle, so that the open wagon can reduce the offset distance by rotating at a small angle to accommodate open wagons of different widths. The angle of the inclined angle is 4°-7°. If the angle is set too small, it may still be too large for some open wagons to offset. If the angle is set too large, it will cause a strong impact when the open wagon is against the backing beam 2, affecting the mechanical stability and the performance of the open wagon itself.

[0051] The trailer platform 3 is mounted on the end plate 1 and can rotate around the rotation center with the end plate 1. The trailer platform 3 is connected to the open wagon rail so that the open wagon can be moved onto the trailer platform 3 and the open wagon can be tilted and unloaded with the trailer platform 3. The trailer platform 3 is a bearing platform with a bearing surface. When the wagon is not tilting, the bearing surface is parallel to the ground. Two corresponding I-beam rails are set on the bearing surface. The two I-beam rails are used to connect with the rails laid on the ground so that the open wagon can be moved onto the I-beam rails of the trailer platform 3 under the traction of the load changer. It can be tilted synchronously by pressing it onto the trailer platform 3, thereby completing the tilting and unloading operation.

[0052] like Figure 2 As shown, the pressing mechanism 4 includes a pressing arm 41, a balance beam 42, and a pressing cylinder 43. The pressing arm 41 is hinged to the backing beam 2, allowing the pressing mechanism 4 to rotate relative to the backing beam 2 toward the open wagon. The balance beam 42 is hinged to one end of the pressing arm 41. The fixed end of the pressing cylinder 43 is hinged to the backing beam 2, and the movable end is hinged to the pressing arm 41. The pressing cylinder 43 is used to push the pressing arm 41 to rotate relative to the backing beam 2, so that the balance beam 42 abuts against the open side of the open wagon, thereby pressing the open wagon tightly onto the trailer platform 3.

[0053] For ease of explanation, Figure 1 As the main view, in this embodiment, the pressing arm 41 is an arc-shaped component. A protrusion is provided on the side of the middle section near the center of rotation, and a hinge hole is provided on the protrusion. A hinge seat is installed on the top of the vehicle beam 2. The pressing arm 41 is installed on the hinge seat through the hinge hole, so that the pressing arm 41 can rotate clockwise or counterclockwise. Specifically, when unloading, the pressing arm 41 first rotates clockwise, then rotates counterclockwise and returns to its original position. At both ends of the pressing arm 41, near the center of rotation, mounting seats and counterweights are fixed respectively. When the pressing arm 41 is not in the operation of unloading, the mounting seats are located at the upper end of the pressing arm 41, and the counterweights are located at the lower end of the pressing arm 41. The equalizing beam 42 is hinged to the pressing arm 41 through the mounting seats. A cylinder support is welded to the bottom of the vehicle beam 2, and the fixed end of the pressing cylinder 43 is hinged to the vehicle beam 2 through the cylinder support.

[0054] It should be noted that the pressing cylinder 43 has poor tensile strength. Excessive tensile force will damage the internal structure of the pressing cylinder 43. The counterweight can prevent the gravity generated by the equalizing beam 42 on the pressing arm 41 from pulling on the pressing cylinder 43, thereby protecting the pressing cylinder 43 and improving its service life.

[0055] In this embodiment, four pressing mechanisms 4 are set up, with two pressing mechanisms forming a group to simultaneously press one open wagon. The four pressing mechanisms 4 form two groups, which can simultaneously press two open wagons for material unloading operations. Since this embodiment adopts a hydraulic pressing method, a matching hydraulic system is required. However, the oil pipes of the hydraulic system cannot directly follow the rotation, so a separate hydraulic pipeline connection structure is also set up. Specifically, the hydraulic system includes a hydraulic station, an oil supply pipeline, a first support, and a second support. The hydraulic station is set on the ground near the tipper. The first support is fixed on the hydraulic station, and the second support is fixed on the outside of the connecting shaft on the support. Both supports are located on the end plate 1. The oil pipe is wound around the first support and the second support in an arc shape, forming a drop pipeline between the first support and the second support. The oil pipe then connects to each pressing cylinder 43 starting from the second support. During the rotation of the pressing arm 41, the bending amplitude of the drop pipeline changes to adapt to the rotation angle, providing stable oil supply to the pressing cylinder 43.

[0056] like Figure 5 As shown, in this embodiment, a contact angle is also set. When the open wagon follows the trailer platform 3 and rotates around the rotation center of the end plate 1, the contact angle becomes zero. The pressing cylinder 43 pushes the equalizing beam 42 to move towards the open side of the open wagon. That is, after the trailer platform 3 rotates relative to the initial position by a contact angle, the pressing cylinder 43 detects that the contact angle has become zero through the sensor. At this time, the movable end of the pressing cylinder 43 is driven to extend, thereby pushing the pressing arm 41 to rotate towards the open wagon. The contact angle is 25°-35°. Between this contact angle, the open wagon can stably contact the backing beam 2 and transfer some of its weight to the backing beam. It also allows time for other devices to operate. The contact angle is preferably 30°. At this angle, both wide and narrow open wagons can stably contact the backing beam 2. At the same time, it can reserve enough angle for the subsequent operation of the pressing arm 41 to maximize the rotational speed of the end plate 1 during this process, thereby improving the unloading efficiency.

[0057] To detect the zeroing of the leaning angle between the open wagon and the backing beam 2, a backing detection device 5 is installed. The backing detection device 5 is installed on the backing beam 2 and has a detection movable end. The detection movable end can move perpendicular to the backing surface 201. The detection movable end is used to contact the open wagon and moves to the backing surface 201 when the leaning angle becomes zero. During the process of the open wagon abutting against the backing surface 201, it will contact the detection movable end and push the detection movable end toward the backing surface 201. When the detection movable end moves to a certain distance, that is, when the open wagon is completely against the backing surface 201, the sensor of the backing detection device 5 will obtain the open wagon positioning signal, and then drive the pressing cylinder 43 to act.

[0058] Specifically, such as Figure 4As shown, the vehicle approach detection device 5 includes a movable rod 51, an elastic element 52, and a positioning probe 53. The movable rod 51 is mounted on the vehicle approach beam 2 and can move perpendicular to the vehicle approach surface 201. One end of the movable rod 51 is used to contact the open wagon. One end of the elastic element 52 is fixed to the vehicle approach beam 2, and the other end is fixed to the movable rod 51. The elastic element 52 is used to push the movable rod 51 out of the vehicle approach surface 201 after the open wagon leaves the vehicle approach surface 201. The positioning probe 53 is fixed on the vehicle approach beam 2 and has a detection function. The probe end is used to detect the moving position of the movable rod 51. When the lean angle becomes zero, the end of the movable rod 51 away from the open wagon is located outside the probe end. To make the sliding of the movable rod 51 more stable, a metal cover is also provided on the wagon beam 2. The metal cover is welded to the wagon beam 2 and has two through holes for the movable rod 51 to move through. The movable rod 51 passes through the two through holes and passes through the metal cover. At the same time, a limiting piece is welded on the movable rod 51 to limit the extension of the movable rod 51 on the wagon surface 201. The length of the elastic element 52 is determined by a spring, which is installed inside the metal cover and sleeved on the outside of the movable rod 51. One end of the spring is welded to the limiting plate, and the other end is fixed to the inner wall of the metal cover. Through the elastic element 52, when the open wagon leaves the approach surface 201, the movable rod 51 can be pushed back out of the approach surface 201, allowing it to reset and proceed with the next open wagon approach detection. The positioning probe 53 is directly fixed to the approach beam 2. The positioning probe 53 can be a photoelectric sensor. When the movable rod 51 reaches its travel distance... When its end is at the distance from the vehicle surface 201, the other end of the movable rod 51 will block the detection end of the positioning probe 53, thereby outputting a positioning signal. In addition, in order to prevent the unloaded coal slag and other materials from contaminating the detection end of the positioning probe 53, a baffle is also required on the vehicle beam 2. The baffle extends to the positioning probe 53 and leaves a certain distance from the detection end of the positioning probe 53 so that light can enter the detection end of the positioning probe 53. The baffle prevents the unloaded materials from contacting the positioning probe 53, thereby protecting the positioning probe 53.

[0059] In addition, since two open wagons can be unloaded at the same time, two wagon detection devices 5 are set up in this embodiment to detect the arrival of the two open wagons respectively.

[0060] Since the trailer platform 3 needs to rotate relative to the end plate 1 during the tipping process, the front beam 2 cannot support the open wagon before tipping. Therefore, a structure is needed to provide stable support for the trailer platform 3. In this embodiment, a positioning component 6 is also provided. The positioning component 6 is fixed relative to the ground and abuts against the trailer platform 3. The positioning component 6 is used to support the trailer platform 3 when the tipper is not tipping. The positioning component 6 is a rod-shaped component that is set on the ground by a bracket. When the trailer platform 3 is not tipping, it supports the bottom of the trailer platform 3, so that it can have a large load-bearing capacity and will not shift, thus affecting the movement of the open wagon onto the trailer platform 3.

[0061] In order to enable the trailer platform 3 to cooperate with the positioning component 6 and to offset and deflect at a small angle during the tipping process, the trailer platform 3 includes a first support part 31 and a second support part 32. The first support part 31 is set on the ground and can rotate and offset relative to the end plate 1 during the process of the open wagon touching the back beam 2. The second support part 32 is fixed relative to the first support part 31. The second support part 32 is used to hold the positioning component 6 when the tipping machine is not performing the tipping action, so as to support the trailer platform 3.

[0062] It should be noted that, in order to limit the relative position of the trailer platform 3 and the end plate 1, a hook is set on the end plate 1, and a corresponding pull rod is welded on the trailer platform 3 to prevent the inverted V groove from detaching from the end plate 1. An arc-shaped groove is opened on the second support part 32, which is adapted to the shape of the positioning part 6. When the second support part 32 contacts the positioning part 6, the position of the second support part 32 can be corrected by the arc-shaped groove. The second support part 32 will not have a large displacement during the reset process. When the tipper is not overturned, the first support part 31 contacts the bracket on the ground to support the trailer platform 3. This bracket and the bracket for installing the positioning part 6 can be the same component.

[0063] After the open wagon is placed against the backing surface 201, the active hydraulic pressure exerts a pressure force on the open side. The trailer platform 3 is only supported by the first support part 31 in contact with the end plate 1, resulting in low stability. The trailer platform 3 has a certain offset space. After the trailer platform is offset due to uneven pressure, it is easy for safety accidents such as falling off the platform to occur. Therefore, in this embodiment, the stabilizing device 8 is also provided on the end plate 1. The stabilizing device 8 includes a movable support end, which is used to provide stable support for the trailer platform 3 when the open wagon is placed against the backing beam 2 and the equalizing beam 42 is not in contact with the open wagon.

[0064] like Figure 3As shown, the stabilizing device 8 includes a support base 84, which is fixed to the inner side of the end plate 1. The movable support end of the stabilizing device 8 is slidably disposed on the support base 84. The trailer platform 3 also includes a third support part 33, which is fixed relative to the first support part 31. The support base 84 is used to support the third support part 33 in conjunction with the stabilizing device 8 after the open wagon is in contact with the abutment beam 2. The movable support end slides on the support base 84 to compensate for the gap between the support base 84 and the third support part 33, so that the support base 84 and the third support part 33 are relatively fixed and cannot move relative to each other.

[0065] Specifically, the stabilizing device 8 further includes a wedge 81, a stabilizing cylinder 82, and a top block 83. The wedge 81 is mounted on the support base 84 and can slide relative to the support base 84. The wedge 81 is provided with a stabilizing inclined surface. The fixed end of the stabilizing cylinder 82 is hinged to the end plate 1, and the movable end is connected to the wedge 81 in a transmission manner. The top block 83 is slidably mounted on the inner side of the end plate 1, and one end abuts against the stabilizing inclined surface of the wedge 81. The stabilizing cylinder 82 is used to push the wedge 81, so that the other end of the top block 83 abuts against the third support part 33 under the drive of the stabilizing inclined surface.

[0066] The top block 83 is the aforementioned movable support end. A slide rail is also provided on the support base 84. The wedge block 81 can move under the guidance of the slide rail. The top block 83 is pushed to move vertically by the stabilizing inclined plane, changing the overall height of the combination of the top block 83 and the wedge block 81. The insertion range of the wedge block 81 can be determined by the pressure on the movable end of the stabilizing cylinder 82. There is no need to pre-set the insertion depth. The deeper the stabilizing inclined plane is inserted, the larger the gap that needs to be compensated, and vice versa.

[0067] In addition, in order to form stable support at both ends of the trailer platform 3, two stabilizing devices 8 are provided, and they are respectively installed on opposite sides of the two end plates 1.

[0068] Compared to existing technologies, since this embodiment uses a hydraulic drive for active pressing, there is a possibility that materials may collide with the pressing cylinder 43 during the unloading process. To avoid this situation, and considering that one side of the pressing arm 41 has a hollow open structure, in this embodiment, the movable end of the pressing cylinder 43 is hinged to the inside of the pressing arm 41 through the open side of the pressing arm 41, and a protective cover is fixed on the back beam 2, so that the protective cover can rotate with the back beam 2 after pressing and be sleeved on the outside of the pressing cylinder 43, thereby protecting the pressing cylinder 43 from contact with the materials.

[0069] The hydraulic active vehicle tilting tipper unloading method of the present invention is based on the above-mentioned tilting tipper and specifically includes steps S1-S6.

[0070] Step S1: After the heavy-duty open wagon is moved onto the trailer platform 3, the end plate 1 is in the initial position.

[0071] Heavy-duty open wagons are open wagons that carry materials. Under the traction of the load changer, heavy-duty open wagons can be moved onto the load changer platform 3 via the rails docked on the load changer platform 3. When both open wagons are completely on the load changer platform 3, they are in the correct position. At this time, the position of the end plate 1 is the initial position. It should be noted that the end plate 1 must be in the initial position before and after the tipping operation.

[0072] Step S2: The end plate 1 drives the trailer platform 3 and the heavy-duty open wagon to rotate around the rotation center of the end plate 1, so that the outer side wall of the open wagon is in contact with the back surface 201 of the back beam 2.

[0073] like Figure 5 As shown, this step is the first step of the unloading process. The end plate 1 rotates, which drives the trailer platform 3 to rotate. Compared with the initial position, the end plate 1 rotates to a contact angle of 25°-35° during this process. After the flip is completed, the outer wall of the open wagon will be in contact with the contact surface 201 of the contact beam 2. At the same time, the open wagon will push the contact detection device 5, so that the contact detection device 5 detects that the open wagon is in contact with the contact surface.

[0074] Step S3: After the outer wall of the open wagon is attached to the backing surface 201 of the backing beam 2, the end plate 1 drives the open wagon to rotate through the trailer platform 3. During the rotation, the pressing cylinder 43 pushes the pressing arm 41 to rotate relative to the backing beam 2, so that the equalizing beam 42 contacts and presses the open side of the open wagon before the end plate 1 flips from the initial position to the first position. The first position of the end plate 1 has an angle of 80° with the initial position.

[0075] After the vehicle detection device 5 detects that the open wagon is in place, the pressing cylinder 43 is driven, which pushes the pressing arm 41 to perform the pressing action. When the end plate 1 is rotated between 35° and 80° from the initial position, the equalizing beam 42 presses against the open side of the open wagon. During this process, the weight of the open wagon and the material will not act on the equalizing beam 42. At the same time, the pressure sensor installed on the pressing cylinder 43 can detect whether the output force has reached the state of complete pressing.

[0076] Step S4: After the equalizing beam 42 presses down on the open wagon, the end plate 1 continues to flip to the second position, completing the forward flip and unloading the material in the open wagon. The second position of the end plate 1 has an angle of 140°-160° with the initial position.

[0077] After the end plate 1 completes its forward tilting, this position is marked as the maximum tilting position. It needs to remain for 3-6 seconds to ensure that the material in the wagon is completely unloaded. It should be noted that after the equalizing beam 42 presses down on the wagon, the material inside the wagon begins to be unloaded. During the process of the end plate 1 tilting to the maximum tilting position, the material inside the wagon continuously falls through the outside of the pressure arm 41 into the bottom of the tipper. In other words, the pressure arm 41 does not bear the weight of the wagon and all the material during the tilting process.

[0078] It should be noted that from step 1 to step 4, end plate 1 is constantly rotating, but the flipping speed is relatively slow during the process of approaching the car, and the flipping speed is faster after the car is pressed.

[0079] Step S5: After the material in the open wagon is unloaded, the end plate 1 is flipped back to the third position. The pressure cylinder 43 starts to release pressure and rotates the pressure arm 41 relative to the back beam 2 so that the equalization beam 42 leaves the open wagon. The third position of the end plate 1 has an angle of 60°-80° with the initial position.

[0080] When the end plate 1 is flipped back to 60°-80° from the initial position, the equalizer beam 42 no longer bears the weight of the open wagon. At this time, the pressure cylinder 43 can start to retract, causing the equalizer beam 42 to release pressure and leave the open wagon during the subsequent flipping process.

[0081] Step S6: After the equalizer beam 42 leaves the open wagon, the end plate 1 continues to flip back until it returns to its initial position.

[0082] When the end plate 1 flips back to 20° from the initial position, the open wagon has left the wagon surface 201, and the stabilizing cylinder 82 can then drive the wedge block 81 to retract.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydraulically operated, active-type tilting tipper for vehicles, characterized in that, It includes an end plate (1), a support beam (2), a trailer platform (3), a vehicle pressing mechanism (4), and a vehicle detection device (5), among which, The end plate (1) can rotate around its center of rotation; The back beam (2) is fixed to the inside of the end plate (1) and located on the extension line of the rotation center of the end plate (1). The back beam (2) includes a back surface (201), which is used to fit against the outer wall of the open wagon and to support it during the unloading process of the open wagon. The trailer platform (3) is set on the end plate (1) and can rotate around the rotation center with the end plate (1). The trailer platform (3) is connected to the open wagon track so that the open wagon can be moved onto the trailer platform (3) and the open wagon can be followed by the trailer platform (3) to overturn and unload. The pressing mechanism (4) includes a pressing arm (41), a balance beam (42) and a pressing cylinder (43). The pressing arm (41) is hinged to the backing beam (2), so that the pressing mechanism (4) can rotate relative to the backing beam (2) toward the open wagon. The balance beam (42) is hinged to one end of the pressing arm (41). The fixed end of the pressing cylinder (43) is hinged to the backing beam (2), and the movable end is hinged to the pressing arm (41). The pressing cylinder (43) is used to push the pressing arm (41) and the backing beam (2) to rotate relative to each other, so that the balance beam (42) abuts against the open side of the open wagon, so as to press the open wagon tightly onto the trailer platform (3). When the open wagon is parked on the trailer platform (3) and has not been overturned, the outer wall of the open wagon used to fit against the back beam (2) and the back surface (201) have an oblique angle, which is an acute angle; When the open wagon follows the trailer platform (3) and rotates around the rotation center of the end plate (1) by a certain angle, the tilt angle becomes zero, and the pressure cylinder (43) pushes the equalization beam (42) to move toward the open side of the open wagon; The vehicle approach detection device (5) is installed on the vehicle approach beam (2) and has a detection movable end. The detection movable end can move perpendicular to the vehicle approach surface (201). The detection movable end is used to contact the open vehicle and moves to the vehicle approach surface (201) when the angle of approach becomes zero.

2. The hydraulically operated, active, side-tilting tipper as described in claim 1, characterized in that, The vehicle approach detection device (5) includes a movable rod (51), an elastic element (52), and a positioning probe (53), wherein, The movable rod (51) is set on the back beam (2) and can move perpendicular to the back surface (201). One end of the movable rod (51) is used to contact the open wagon. One end of the elastic element (52) is fixed to the back beam (2), and the other end is fixed to the movable rod (51). The elastic element (52) is used to push the movable rod (51) out of the back surface (201) after the open wagon leaves the back surface (201). The positioning probe (53) is fixed on the car-side beam (2). The positioning probe (53) has a detection end, which is used to detect the position of the movable rod (51). When the lean angle becomes zero, the end of the movable rod (51) away from the open car is located outside the detection end.

3. The hydraulically operated, active, side-tilting tipper as described in claim 1, characterized in that, It also includes a positioning element (6), which is fixed relative to the ground and abuts against the trailer platform (3). The positioning element (6) is used to support the trailer platform (3) when the tipper is not tipping over.

4. The hydraulically operated, active, side-tilting tipper as described in claim 3, characterized in that, The trailer platform (3) includes a first support part (31) and a second support part (32), wherein, The first support (31) is set on the ground and can rotate and shift relative to the end plate (1) during the process of the open wagon abutting against the back beam (2); The second support (32) is fixed relative to the first support (31). The second support (32) is used to hold the positioning member (6) when the tipper is not tipping over, so as to support the trailer platform (3).

5. The hydraulically operated, active, side-tilting tipper as described in claim 4, characterized in that, It also includes a stabilizing device (8), which is mounted on the end plate (1). The stabilizing device (8) includes a movable support end, which is used to provide stable support for the trailer platform (3) when the open wagon is close to the back beam (2) and the equalizer beam (42) is not in contact with the open wagon.

6. The hydraulically operated, active, side-tilting tipper as described in claim 5, characterized in that, The stabilizing device (8) includes a support base (84), which is fixed inside the end plate (1). The movable support end of the stabilizing device (8) is slidably disposed on the support base (84). The trailer platform (3) also includes a third support part (33), which is fixed relative to the first support part (31). The support base (84) is used to support the third support part (33) in conjunction with the stabilizing device (8) after the open wagon is in contact with the back beam (2).

7. The hydraulically operated, active, side-tilting tipper as described in claim 6, characterized in that, The stabilizing device (8) further includes a wedge (81), a stabilizing cylinder (82), and a top block (83), wherein, The wedge (81) is disposed on the support base (84) and can slide relative to the support base (84), and the wedge (81) is provided with a stabilizing inclined surface; The fixed end of the stabilizing cylinder (82) is hinged to the end plate (1), and the movable end is connected to the wedge block (81) in a transmission manner; The top block (83) is slidably disposed inside the end plate (1), and one end abuts against the stabilizing inclined surface of the wedge block (81). The stabilizing cylinder (82) is used to push the wedge block (81) so that the other end of the top block (83) abuts against the third support part (33) under the drive of the stabilizing inclined surface.

8. The hydraulically operated, active, side-tilting tipper as described in claim 1, characterized in that, The angle of the leaning angle is 4°-7°. When the open wagon is parked on the trailer platform (3) and the end plate (1) is not flipped, the end plate (1) is in the initial position. When the leaning angle changes from an acute angle to zero, the current position of the end plate (1) has an angle of 25°-35° with respect to the initial position.

9. A method for unloading a hydraulically operated, actively tilting, tipper truck, characterized in that, The side-tilting tipper based on any one of claims 1-8 includes the following steps: After the S1 heavy-duty open wagon is moved onto the trailer platform (3), the end plate (1) is in the initial position; S2 end plate (1) drives the trailer platform (3) and the heavy-duty open wagon to rotate around the rotation center of the end plate (1), so that the outer side wall of the open wagon is in contact with the back surface (201) of the back beam (2). After the outer wall of the S3 open wagon is attached to the back surface (201) of the back beam (2), the end plate (1) drives the open wagon to rotate through the trailer platform (3). During the rotation, the pressing cylinder (43) pushes the pressing arm (41) to rotate relative to the back beam (2), so that the equalizing beam (42) contacts and presses the open side of the open wagon before the end plate (1) flips from the initial position to the first position. The first position of the end plate (1) has an angle of 80° with the initial position. After the S4 equalizing beam (42) presses the open wagon tightly, the end plate (1) continues to flip to the second position, completing the forward flip and unloading the material in the open wagon. The second position of the end plate (1) has an angle of 140°-160° with the initial position. After the materials in the S5 open wagon are unloaded, the end plate (1) is flipped back to the third position. The pressure cylinder (43) begins to release pressure and the pressure arm (41) rotates relative to the back beam (2) so that the equalization beam (42) leaves the open wagon. The third position of the end plate (1) has an angle of 60°-80° with the initial position. After the S6 equalizing beam (42) leaves the open wagon, the end plate (1) continues to flip back until it returns to the initial position of the end plate (1).

Images