A car pressing device of a side tipping car dumper and a retrofit method thereof

Abstract

A kind of side tipping car machine press car device and its retrofit method, including car beam, equalizing beam, multiple car clamping arms and multiple hydraulic cylinders, each car clamping arm is independently moved under the drive of its corresponding hydraulic cylinder, only need to add hydraulic cylinder and counterweight during retrofit process, the rest parts of side tipping hydraulic tipping car machine car clamping device all use old parts of original side tipping II type tipping car machine car clamping device, each car clamping arm is independently moved under the drive of its corresponding hydraulic cylinder after retrofit is completed, the rotation of car clamping arm can be controlled on car beam by the extension and retraction of hydraulic cylinder, to complete press car work, the rotation of car clamping arm is only controlled by hydraulic cylinder, without setting pawl and ratchet locking device, and then jump tooth phenomenon will not occur.The design not only can control each car clamping arm by hydraulic cylinder, but also can adapt different press car force requirements by different hydraulic cylinders.

Description

Technical Field

[0001] This invention relates to a vehicle pressing device, and more particularly to a vehicle pressing device for a side-tilting tipper and a method for modifying it. Background Technology

[0002] The Side-Tipping Type II tippler is a large-scale mechanical device used for unloading open railway wagons. It is suitable for large thermal power plants, chemical plants, ports, storage and transportation stations, and coking plants and sintering plants in the metallurgical industry. It is used to unload coal, ore, and other bulk materials transported in open wagons on various standard-gauge railways. The Side-Tipping Type II tippler adopts a modular, box-type structure assembly. It is a mechanical unloading device for bulk materials, using gravity pressing and mechanical locking. Its outstanding features include simple structure, high rigidity, large resistance to deformation, durability, low maintenance workload and cost, low cost, and strong environmental adaptability.

[0003] The existing side-tilting tipper has multiple clamping arms, with the middle of each arm hinged to the trailer beam. One end of each clamping arm is hinged to a balance beam, and the other end of each arm is mounted on a pressure beam. Pawl and ratchet locking devices are installed at both ends of the pressure beam corresponding to the end plates. During the tipping process, the end plates rotate clockwise, and the clamping arms swing backward about the pins on the top supports of the trailer beam. The pawl device moves along the arc of the ratchet teeth. Once the balance beam is fully in contact with the top of the vehicle, the clamping arms can no longer swing backward. The end plate drive platform, along with the vehicle being tipped, rotates the entire clamping mechanism through the balance beam. The cam in the pawl device then lifts off the ground to stop. Due to the cam's own weight, the pawl engages with the ratchet teeth, locking the clamping mechanism and ensuring that the vehicle does not fall when the tilt angle exceeds 90°.

[0004] Although this type of car-loading device can achieve rapid unloading by tipping the car body, it still has the following drawbacks:

[0005] 1. In the clamping device, each clamping arm is connected together by a clamping beam. There are errors between them, and it cannot be guaranteed that each clamping arm will make normal contact with the car body.

[0006] 2. Traditional side-tilting type II tippers use a purely mechanical clamping device. The clamping device's locking mechanism relies on the interaction between its own pawl and the ratchet teeth on the end plate. The installation accuracy of the pawl and ratchet teeth is very high. If the meshing positions of the pawl and ratchet teeth at both ends are not synchronized, it is easy to cause tooth skipping, which may lead to safety accidents such as car derailment during the tipping process.

[0007] 3. Purely mechanical clamping devices use passive pressing, and the pressing force applied to the car body is uncontrollable. This can result in insufficient pressing force, failing to meet the equipment's testing standards.

[0008] The information disclosed in this background section is intended only to enhance understanding of the overall background of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0009] The purpose of this invention is to overcome the shortcomings of existing purely mechanical clamping devices, which are prone to tooth skipping and have uncontrollable clamping force. This invention provides a clamping device for a side-tilting tipper and its modification method, which uses a hydraulic mechanism to clamp the vehicle, avoids tooth skipping, and allows for controllable clamping force.

[0010] To achieve the above objectives, the technical solution of the present invention is:

[0011] A vehicle pressing device for a side-tilting tipper and its modification method, wherein the vehicle pressing device for the side-tilting tipper includes: a vehicle support beam, a balance beam, multiple clamping arms and multiple hydraulic cylinders;

[0012] The vehicle support beam is located on one side of the unloading platform and is parallel to the unloading platform. Each end of the vehicle support beam is coaxially connected to a drive end plate. Multiple upper hinge seats are evenly fixed on the top of the vehicle support beam, and multiple hydraulic cylinder seats are evenly fixed on the bottom of the vehicle support beam. The vehicle support beam is rotatably engaged with the middle part of the clamping arm through the upper hinge seats on its top. The cylinder body of the hydraulic cylinder is hinged to its corresponding hydraulic cylinder seat, and the telescopic rod of the hydraulic cylinder is hinged to its corresponding clamping arm. The top of each clamping arm is rotatably engaged with a balance beam, and the clamping arms are evenly distributed on the vehicle support beam.

[0013] A protective device is provided on each side of the hydraulic cylinder. The protective device is an arc-shaped cover structure. The two protective devices are respectively located on the two sides of their corresponding hydraulic cylinders. The protective devices are clearance-fitted with the clamping arm. The straight side of the protective device is fixedly connected to the side wall of the vehicle beam.

[0014] The clamping arm has a clamping arm hinge hole, a hydraulic cylinder hinge hole, and a hydraulic cylinder movable groove on the side near the car beam. The clamping arm hinge hole is located in the middle of the clamping arm. The hydraulic cylinder hinge hole and the hydraulic cylinder movable groove are sequentially opened from the end of the clamping arm hinge hole towards the bottom end of the clamping arm. A coal cleaning groove is provided on the side of the clamping arm away from the car beam.

[0015] The weight of the counterweight is 880 to 1080 kilograms.

[0016] The modification method described above is applicable to the modification of the wheel-pressing device of a Type II tilting tipper:

[0017] The side-tilting type II tipper pressing device includes: a car-supporting beam, a balance beam, a car-clamping beam, a ground stop, a drive system, two end plates, multiple car-clamping arms, multiple pawls, and multiple arc-shaped ratchet racks;

[0018] The vehicle support beam is located on one side of the unloading platform and is parallel to the unloading platform. Each end of the vehicle support beam is coaxially connected to an end plate, which is in transmission cooperation with the drive system. Multiple upper hinge seats are evenly fixed on the top of the vehicle support beam, and a clamping arm is fixed on each upper hinge seat. The middle part of the clamping arm is hinged to its corresponding upper hinge seat. A balance beam is fixedly fixed on the top of the clamping arm and hinged to it. The bottom end of the clamping arm is fixedly connected to the clamping beam. A ground stop is fixedly installed below the clamping beam. Both ends of the clamping beam are fixedly equipped with mutually cooperating pawls, which cooperate with the arc-shaped ratchet rack on the end plate on the same side. The drive system is fixedly installed on the ground, and the power output end of the drive system is sequentially connected to each clamping arm through the end plate, the clamping beam, and the drive system.

[0019] The modification method includes the following steps:

[0020] S1, Fix the clamping arm. The operator controls the drive system to start working, so that the back beam drives the clamping arm to start rotating until the clamping arm moves directly above the back beam. At this time, the operator sets a channel steel on each side of the clamping arm and welds one end of the channel steel to the clamping arm and the other end of the channel steel to the back beam, so that the clamping arm and the back beam are connected as a whole structure. Then proceed to step S2 to disassemble the locking mechanism.

[0021] S2, Disassemble the locking mechanism. After the clamping arm and the back beam are connected as a whole, the operator removes each pawl, ground stop and curved ratchet rack. After the ground stop, pawl and curved ratchet rack are all removed, proceed to S3 to lift the clamping beam.

[0022] S3, Lifting the clamping beam, welding lifting lugs at the left and right ends of the beam and the clamping beam. After the lifting lugs are welded, connect the lifting lugs at the same end of the beam and the clamping beam with a wire rope and a hand chain hoist, and tighten the wire rope with the hand chain hoist to make the wire rope taut, and proceed to step S4 to disassemble the clamping beam.

[0023] S4, Disassemble the clamping beam. After the wire rope is taut, the operator removes the connecting bolts between the clamping beam and each clamping arm. After all the connecting bolts between the clamping beam and each clamping arm are removed, the operator uses a hand-operated hoist to loosen the wire rope until the clamping beam falls to the ground. After the clamping beam has completely fallen to the ground, the wire ropes on the lifting lugs at both ends of the clamping beam are removed, and the clamping beam is removed. After the clamping beam is removed, proceed to step S5, modify the clamping arm.

[0024] S5. Modify the clamping arm by creating clamping arm hinge holes, hydraulic cylinder hinge holes, hydraulic cylinder movable grooves, and coal cleaning grooves at corresponding positions on the clamping arm. Weld a hydraulic cylinder seat to the bottom of the car beam. After the hydraulic cylinder seat is welded, hinge the cylinder body of the hydraulic cylinder to the hydraulic cylinder seat and hinge the extension rod of the hydraulic cylinder to the hydraulic cylinder hinge hole. After the hydraulic cylinder is installed, install a protective device on each side of the hydraulic cylinder. After the protective devices are installed, weld a counterweight to the bottom of the clamping arm and remove the welded channel steel of the clamping arm. Connect each hydraulic cylinder and the main hydraulic station through hydraulic oil pipes. Once each hydraulic cylinder is connected to the main hydraulic station, the modification method is complete.

[0025] In the S3 lifting clamp beam, the rated load of the lifting lug, wire rope and hand chain hoist are all greater than ten tons.

[0026] The bottom end of each clamping arm is fixedly equipped with a counterweight block, the upper hinge seat and the cylinder seat are both double-ear plate structures, and multiple hydraulic cylinders are connected to the main hydraulic station.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1. In the side-tilting hydraulic tipper clamping device of the present invention, each clamping arm moves independently under the drive of its corresponding hydraulic cylinder. Furthermore, when the system deforms due to prolonged use, the independently operating hydraulic cylinders can compensate for the deformation through their stroke margin, ensuring that each car-holding beam and the equalizing beam 2 can maintain normal contact with the car body. Therefore, this design, through the independently operating hydraulic cylinders, avoids clamping errors and effectively extends the reliability of the clamping device.

[0029] 2. In the side-tilting hydraulic tipper clamping device of the present invention, each clamping arm is provided with a hydraulic cylinder hinge hole, and multiple hydraulic cylinder seats are evenly fixedly arranged at the bottom of the vehicle beam. Each hydraulic cylinder seat is hinged to its corresponding hydraulic cylinder seat, and the extension rod of each hydraulic cylinder is hinged to its corresponding clamping arm. The extension and retraction of the hydraulic cylinders can control the rotation of the clamping arm on the vehicle beam, thereby completing the clamping work. The rotation of the clamping arm is controlled only by the hydraulic cylinders, eliminating the need for a pawl and ratchet locking device, thus preventing tooth skipping. Therefore, this design eliminates the need for a pawl and ratchet locking device, preventing tooth skipping and effectively improving the safety of the clamping device.

[0030] 3. In the side-tilting hydraulic tipper clamping device of this invention, each clamping arm is driven to rotate by a hydraulic cylinder. The rotation amplitude of the clamping arm is controlled by the extension and retraction length of the hydraulic cylinder. Simultaneously, the clamping force of the device is controlled by the power of the hydraulic cylinder, enabling the device to perform active clamping. Furthermore, different specifications of hydraulic cylinders can be selected according to different clamping force requirements to ensure that the clamping force meets the equipment's testing standards. Therefore, this design can adapt to different clamping force requirements using different hydraulic cylinders, effectively expanding the system's adaptability.

[0031] 4. In the side-tilting hydraulic tipper clamping device of the present invention, a counterweight is fixedly installed at the bottom end of the clamping arm. The counterweight can balance the weight of the equalizing beam, preventing the clamping arm from becoming top-heavy due to the weight of the equalizing beam when the clamping device is not in use. This would prevent the hydraulic cylinder from being subjected to excessive tension for a long time, causing damage to the hydraulic cylinder. Therefore, this design can balance the weight of the equalizing beam through the counterweight, avoiding damage to the hydraulic cylinder and effectively extending the service life of the clamping device.

[0032] 5. In the side-tilting tipper's pressing device and its modification method of the present invention, a protective device is provided on the clamping arm. The protective device is an arc-shaped cover structure that covers both sides of the hydraulic cylinder to prevent mineral powder, ore, and other bulk materials from entering the hydraulic cylinder during use and causing damage to the hydraulic cylinder. Therefore, this design can prevent damage to the hydraulic cylinder through the protective device, effectively reducing system maintenance costs.

[0033] 6. In the modification method of the side-tilting hydraulic tippler clamping device of the present invention, the traditional side-tilting type II tippler clamping device is modified into a side-tilting hydraulic tippler clamping device through the following steps: first, fixing the clamping arm; second, disassembling the accessories; third, lifting the clamping beam; fourth, disassembling the clamping beam; and fifth, modifying the clamping arm. Only a hydraulic cylinder and a counterweight are needed. The remaining parts of the side-tilting hydraulic tippler clamping device are all reused from the original side-tilting type II tippler clamping device, effectively reducing the production cost and production cycle of the side-tilting hydraulic tippler clamping device. Therefore, this design can modify the traditional side-tilting type II tippler clamping device into a side-tilting hydraulic tippler clamping device, effectively reducing the production cost and production cycle of the side-tilting hydraulic tippler clamping device. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the present invention.

[0035] Figure 2 This is the front view of the present invention.

[0036] Figure 3 yes Figure 1 A schematic diagram of the middle clamp arm.

[0037] Figure 4 yes Figure 1 A bottom view of the middle clamp arm.

[0038] Figure 5 yes Figure 1 Top view of the middle clamp arm.

[0039] Figure 6 This is the front view of the tilting type II tipper clamping device in the S1 fixed clamping arm step.

[0040] Figure 7 This is a schematic diagram of the side-tilting type II tipper pressing device in the S1 fixed clamping arm step.

[0041] Figure 8 This is a structural diagram of the lifting lugs after welding during the S3 lifting and clamping beam process.

[0042] Figure 9 This is a schematic diagram of the structure after the steel wire rope is tightened during the S3 lifting and clamping beam process.

[0043] Figure 10 This is a structural diagram of the S4 disassembly and clamping beam steps.

[0044] Figure 11 This is a schematic diagram of the structure after installing the cylinder seat during the S5 modification clamping arm process.

[0045] Figure 12 This is a schematic diagram of the structure after installing the hydraulic cylinder during the S5 modification clamping arm process.

[0046] Figure 13 This is a schematic diagram of the structure after the modification of the present invention.

[0047] In the diagram: 1. Car-mounted beam, 11. Upper hinge seat, 12. Cylinder seat, 2. Balance beam, 3. Clamping arm, 31. Counterweight, 32. Protective device, 33. Clamping arm hinge hole, 34. Cylinder hinge hole, 35. Cylinder movable groove, 36. Coal cleaning trough, 4. Hydraulic cylinder, 5. Main hydraulic station, 6. Clamping beam, 7. Ground stop, 8. Drive system, 9. Pawl, 10. Arc-shaped ratchet rack, 13. Channel steel, 14. Lifting lug. Detailed Implementation

[0048] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0049] See Figures 1 to 13 A vehicle pressing device for a side-tilting tipper and its modification method, wherein the vehicle pressing device for the side-tilting tipper includes: a vehicle support beam 1, a balance beam 2, multiple vehicle clamping arms 3 and multiple hydraulic cylinders 4.

[0050] The vehicle support beam 1 is located on one side of the unloading platform and is parallel to the unloading platform. Each end of the vehicle support beam 1 is coaxially connected to a drive end plate. Multiple upper hinge seats 11 are uniformly fixed on the top of the vehicle support beam 1, and multiple cylinder seats 12 are uniformly fixed on the bottom of the vehicle support beam 1. The vehicle support beam 1 is rotatably engaged with the middle part of the clamping arm 3 through the upper hinge seats 11 on its top. The cylinder body of the hydraulic cylinder 4 is hinged to its corresponding cylinder seat 12, and the telescopic rod of the hydraulic cylinder 4 is hinged to its corresponding clamping arm 3. The top of each clamping arm 3 is rotatably engaged with the equalizing beam 2, and the clamping arms 3 are evenly distributed on the vehicle support beam 1.

[0051] A protective device 32 is provided on each side of the hydraulic cylinder 4. The protective device 32 has an arc-shaped cover structure. The two protective devices 32 are respectively provided on the two sides of their corresponding hydraulic cylinder 4. The protective device 32 is clearance-fitted with the clamping arm 3. The straight side of the protective device 32 is fixedly connected to the side wall of the vehicle beam 1.

[0052] The clamping arm 3 is provided with a clamping arm hinge hole 33, a hydraulic cylinder hinge hole 34 and a hydraulic cylinder movable groove 35 on the side near the car beam 1. The clamping arm hinge hole 33 is located in the middle of the clamping arm 3. The hydraulic cylinder hinge hole 34 and the hydraulic cylinder movable groove 35 are sequentially opened from the end of the clamping arm hinge hole 33 toward the bottom end of the clamping arm 3. A coal cleaning groove 36 is provided on the side of the clamping arm 3 away from the car beam 1.

[0053] The weight of the counterweight 31 is 880 to 1080 kg.

[0054] The modification method described above is applicable to the modification of the wheel-pressing device of a Type II tilting tipper:

[0055] The side-tilting type II tipper pressing device includes: a car-supporting beam 1, a balance beam 2, a car-clamping beam 6, a ground stop 7, a drive system 8, two end plates, multiple car-clamping arms 3, multiple pawls 9, and multiple arc-shaped ratchet racks 10.

[0056] The vehicle support beam 1 is located on one side of the unloading platform and is parallel to the unloading platform. Each end of the vehicle support beam 1 is coaxially connected to an end plate. The end plate is in transmission cooperation with the drive system 8. Multiple upper hinge seats 11 are evenly fixed on the top of the vehicle support beam 1. Each upper hinge seat 11 is fixedly equipped with a clamping arm 3. The middle part of the clamping arm 3 is hinged to its corresponding upper hinge seat 11. The top of the clamping arm 3 is fixedly equipped with a balance beam 2 that is hinged to it. The bottom end of the clamping arm 3 is fixedly connected to the clamping beam 6. A ground stop 7 is fixedly installed below the clamping beam 6. Both ends of the clamping beam 6 are fixedly equipped with mutually cooperating pawls 9. The pawls 9 cooperate with the arc-shaped ratchet rack 10 on the end plate on the same side. The drive system 8 is fixedly installed on the ground. The power output end of the drive system 8 is sequentially connected to each clamping arm 3 through the end plate, the clamping beam 6, and the drive system 8.

[0057] The modification method includes the following steps:

[0058] S1, Fix the clamping arm. The operator controls the drive system 8 to start working, so that the back beam 1 drives the clamping arm 3 to start rotating until the clamping arm 3 moves directly above the back beam 1. At this time, the operator sets a channel steel 13 on each side of the clamping arm 3, and welds one end of the channel steel 13 to the clamping arm 3, and welds the other end of the channel steel 13 to the back beam 1, so that the clamping arm 3 and the back beam 1 are connected as an integral structure. At this time, proceed to the S2 step of disassembling the locking mechanism.

[0059] S2, disassemble the locking mechanism. After the clamping arm 3 and the back beam 1 are connected as a whole, the operator removes each pawl 9, ground stop 7 and arc-shaped ratchet rack 10. After the ground stop 7, pawl 9 and arc-shaped ratchet rack 10 are all removed, proceed to the S3 lifting clamping beam step.

[0060] S3, lift the clamping beam, weld lifting lugs 14 at the left and right ends of the vehicle beam 1 and the clamping beam 6. After the lifting lugs 14 are welded, connect the lifting lugs 14 at the same end of the vehicle beam 1 and the clamping beam 6 with a wire rope and a hand chain hoist, and tighten the wire rope with the hand chain hoist to make the wire rope taut, and proceed to step S4 to disassemble the clamping beam 6.

[0061] S4, disassemble the clamping beam. After the wire rope is taut, the operator disassembles the connecting bolts between the clamping beam 6 and each clamping arm 3. After all the connecting bolts between the clamping beam 6 and each clamping arm 3 are disassembled, the operator uses a hand-operated hoist to loosen the wire rope until the clamping beam 6 falls to the ground. After the clamping beam 6 has completely fallen to the ground, the operator disassembles the wire ropes on the lifting lugs 14 at both ends of the clamping beam 6 and removes the clamping beam 6. After the clamping beam 6 is removed, proceed to step S5, modify the clamping arm.

[0062] S5. Modify the clamping arm by opening clamping arm hinge holes 33, cylinder hinge holes 34, cylinder movable grooves 35, and coal cleaning grooves 36 at corresponding positions on the clamping arm 3. Weld cylinder seats 12 to the bottom of the car beam 1. After the cylinder seats 12 are welded, hinge the cylinder body of the hydraulic cylinder 4 to the cylinder seat 12 and hinge the telescopic rod of the hydraulic cylinder 4 to the cylinder hinge hole 34. After the hydraulic cylinder 4 is installed, install a protective device 32 on each side of the hydraulic cylinder 4. After the protective devices 32 are installed, weld a counterweight 31 to the bottom of the clamping arm 3 and remove the channel steel 13 welded to the clamping arm 3. Connect each hydraulic cylinder 4 and the main hydraulic station 5 through hydraulic oil pipes. When each hydraulic cylinder 4 is connected to the main hydraulic station 5, the modification method is completed.

[0063] In the S3 lifting clamp beam, the rated load of the lifting lug 14, the wire rope, and the hand-operated hoist are all greater than ten tons.

[0064] The bottom end of each clamping arm 3 is fixedly provided with a counterweight 31, the upper hinge seat 11 and the cylinder seat 12 are both double-ear plate structures, and the multiple hydraulic cylinders 4 are all connected to the main hydraulic station 5.

[0065] The principle of this invention is explained as follows:

[0066] The modified side-tilting hydraulic tipper clamping device in this design is used...

[0067] The hydraulic cylinder 4 extends, pushing the hinge point on the hinge seat 11 above the clamping arm 3 to rotate around the center until the equalizing beam 2 contacts the car body. The equalizing beam 2 is passively adjusted by the push of the hydraulic cylinder 4 until the equalizing beam 2 is in full normal contact with the car body. At this time, the hydraulic cylinder 4 continues to extend until the car body is pressed tightly against the car beam 1, and the pressing process is completed.

[0068] This design also includes a hydraulic cylinder positioning and selection step, which is performed before the S1 step of fixing the clamping arm. The hydraulic cylinder positioning and selection step includes:

[0069] The first step is to determine the stroke and installation position of the hydraulic cylinder 4. Based on the pressing requirements of the modified tippler, the limit position of the clamping arm 3 in the pressing state is obtained. Then, based on the tippler structure, the limit position of the clamping arm 3 in the free state is obtained. The cylinder seat 12 and the clamping arm 3 in the two limit positions are drawn on the two-dimensional diagram of the tippler. The same point in the middle of the clamping arm 3 in the two limit positions is taken as the hinge point of the hydraulic cylinder 4. The maximum stroke of the hydraulic cylinder 4 is obtained based on the hinge point position in the two limit positions. The installation distance of the hydraulic cylinder 4 is obtained based on the distance between the hinge point and the cylinder seat 12 when the clamping arm 3 is in the highest position. At this time, the second step is to determine the remaining specifications of the hydraulic cylinder 4.

[0070] The second step is to determine the remaining specifications of hydraulic cylinder 4. After the hinge point position is determined, the force on hydraulic cylinder 4 during the tippler pressing process is calculated. Based on the force on hydraulic cylinder 4, the specifications of hydraulic cylinder 4 are selected. The size information of hydraulic cylinder 4 of this specification is used to calculate whether hydraulic cylinder 4 interferes with the car-supporting beam 1 or the clamping arm 3 during the tippler pressing process. If interference occurs, proceed to the third step of fine-tuning the hinge point. If no interference occurs, proceed to the fourth step of designing the protection device.

[0071] The third step is to fine-tune the hinge point. When the hydraulic cylinder 4 interferes with the vehicle beam 1 or the clamping arm 3, the hinge point position is adjusted. When the hinge point is adjusted to the point where there is no interference, the maximum and minimum distances between the hinge point and the cylinder seat 12 are calculated. When the maximum distance is greater than the maximum length of the hydraulic cylinder 4, or the minimum distance is less than the minimum length of the hydraulic cylinder 4, the process returns to step S1.1, which determines the stroke and installation position of the hydraulic cylinder 4. When the maximum distance is less than or equal to the maximum length of the hydraulic cylinder 4, and the minimum distance is greater than or equal to the minimum length of the hydraulic cylinder 4, the process proceeds to step four, which involves designing the protection device.

[0072] The fourth step is to design the protection device. Draw the hydraulic cylinder 4 when the telescopic rod is extended to its maximum stroke on the two-dimensional drawing of the tipper, and take the outer contour of the hydraulic cylinder 4 as the area to be protected. Design the shape and installation position of the protection device 32 according to the area to be protected, so that the protection device 32 can cover the area to be protected. After the design is completed, proceed to the S1 step of fixing the clamping arm.

[0073] Example 1:

[0074] A vehicle pressing device for a side-tilting tipper and its modification method are disclosed. The vehicle pressing device of the side-tilting tipper includes: a vehicle-supporting beam 1, a balance beam 2, multiple clamping arms 3, and multiple hydraulic cylinders 4. The vehicle-supporting beam 1 is disposed on one side of the unloading platform and is parallel to the unloading platform. Each end of the vehicle-supporting beam 1 is coaxially connected to a drive end plate. Multiple upper hinge seats 11 are uniformly fixedly disposed on the top of the vehicle-supporting beam 1, and multiple cylinder seats 12 are uniformly fixedly disposed on the bottom of the vehicle-supporting beam 1. The vehicle-supporting beam 1 rotates with the middle part of the clamping arms 3 through the upper hinge seats 11 on its top. The cylinders of the hydraulic cylinders 4... The hydraulic cylinder 4 is hinged to its corresponding cylinder seat 12. The telescopic rod of the hydraulic cylinder 4 is hinged to its corresponding clamping arm 3. The top of the clamping arm 3 is fixedly connected to the top of the equalizing beam 2. The top of each clamping arm 3 is rotatably engaged with the equalizing beam 2. The clamping arms 3 are evenly distributed on the back beam 1. A protective device 32 is provided on each side of the hydraulic cylinder 4. The protective device 32 has an arc-shaped cover structure. The two protective devices 32 are respectively provided on both sides of their corresponding hydraulic cylinder 4. The protective device 32 is clearance-fitted with the clamping arm 3. The straight side of the protective device 32 is fixedly connected to the side wall of the back beam 1.

[0075] The modification method described above is applicable to the modification of the wheel-pressing device of a Type II tilting tipper:

[0076] The side-tilting type II tipper's pressing device includes: a car-supporting beam 1, a balancing beam 2, a car-clamping beam 6, a ground stop 7, a drive system 8, two end plates, multiple car-clamping arms 3, multiple pawls 9, and multiple arc-shaped ratchet racks 10. The car-supporting beam 1 is located on one side of the unloading platform and is parallel to the unloading platform. Each end of the car-supporting beam 1 is coaxially connected to an end plate, and the end plates are in transmission cooperation with the drive system 8. Multiple upper hinge seats 11 are evenly fixedly installed on the top of the car-supporting beam 1, and each upper hinge seat 11 is fixedly equipped with a car-clamping arm. 3. The middle part of the clamping arm 3 is hinged to its corresponding upper hinge seat 11. The top end of the clamping arm 3 is fixedly provided with a balance beam 2 that is hinged to it. The bottom end of the clamping arm 3 is fixedly connected to the clamping beam 6. A ground stop 7 is fixedly provided below the clamping beam 6. Both ends of the clamping beam 6 are fixedly provided with mutually cooperating pawls 9. The pawls 9 cooperate with the arc-shaped ratchet rack 10 on the end plate on the same side. The drive system 8 is fixedly provided on the ground. The power output end of the drive system 8 is sequentially connected to each clamping arm 3 through the end plate, the clamping beam 6, and the drive system 8.

[0077] The modification method includes the following steps:

[0078] S1, Fix the clamping arm. The operator controls the drive system 8 to start working, so that the back beam 1 drives the clamping arm 3 to start rotating until the clamping arm 3 moves directly above the back beam 1. At this time, the operator sets a channel steel 13 on each side of the clamping arm 3, and welds one end of the channel steel 13 to the clamping arm 3, and welds the other end of the channel steel 13 to the back beam 1, so that the clamping arm 3 and the back beam 1 are connected as an integral structure. At this time, proceed to the S2 step of disassembling the locking mechanism.

[0079] S2, disassemble the locking mechanism. After the clamping arm 3 and the back beam 1 are connected as a whole, the operator removes each pawl 9, ground stop 7 and arc-shaped ratchet rack 10. After the ground stop 7, pawl 9 and arc-shaped ratchet rack 10 are all removed, proceed to the S3 lifting clamping beam step.

[0080] S3, lift the clamping beam, weld lifting lugs 14 at the left and right ends of the vehicle beam 1 and the clamping beam 6. After the lifting lugs 14 are welded, connect the lifting lugs 14 at the same end of the vehicle beam 1 and the clamping beam 6 with a wire rope and a hand chain hoist, and tighten the wire rope with the hand chain hoist to make the wire rope taut, and proceed to step S4 to disassemble the clamping beam 6.

[0081] S4, disassemble the clamping beam. After the wire rope is taut, the operator disassembles the connecting bolts between the clamping beam 6 and each clamping arm 3. After all the connecting bolts between the clamping beam 6 and each clamping arm 3 are disassembled, the operator uses a hand-operated hoist to loosen the wire rope until the clamping beam 6 falls to the ground. After the clamping beam 6 has completely fallen to the ground, the operator disassembles the wire ropes on the lifting lugs 14 at both ends of the clamping beam 6 and removes the clamping beam 6. After the clamping beam 6 is removed, proceed to step S5, modify the clamping arm.

[0082] S5. Modify the clamping arm by opening clamping arm hinge holes 33, cylinder hinge holes 34, cylinder movable grooves 35, and coal cleaning grooves 36 at corresponding positions on the clamping arm 3. Weld cylinder seats 12 to the bottom of the car beam 1. After the cylinder seats 12 are welded, hinge the cylinder body of the hydraulic cylinder 4 to the cylinder seat 12 and hinge the telescopic rod of the hydraulic cylinder 4 to the cylinder hinge hole 34. After the hydraulic cylinder 4 is installed, install a protective device 32 on each side of the hydraulic cylinder 4. After the protective devices 32 are installed, weld a counterweight 31 to the bottom of the clamping arm 3 and remove the channel steel 13 welded to the clamping arm 3. Connect each hydraulic cylinder 4 and the main hydraulic station 5 through hydraulic oil pipes. When each hydraulic cylinder 4 is connected to the main hydraulic station 5, the modification method is completed.

[0083] Example 2:

[0084] Example 2 is basically the same as Example 1, except that:

[0085] The clamping arm 3 has a clamping arm hinge hole 33, a hydraulic cylinder hinge hole 34, and a hydraulic cylinder movable groove 35 on the side near the car beam 1. The clamping arm hinge hole 33 is located in the middle of the clamping arm 3. The hydraulic cylinder hinge hole 34 and the hydraulic cylinder movable groove 35 are sequentially opened from the end of the clamping arm hinge hole 33 towards the bottom end of the clamping arm 3. A coal cleaning groove 36 is provided on the side of the clamping arm 3 away from the car beam 1. The weight of the counterweight 31 is 880 to 1080 kg.

[0086] Example 3:

[0087] Example 3 is basically the same as Example 2, except that:

[0088] In the S3 lifting clamp beam, the rated load of the lifting lug 14, the wire rope and the hand chain hoist are all greater than ten tons; the bottom end of the clamp arm 3 is fixedly equipped with a counterweight block 31; the upper hinge seat 11 and the cylinder seat 12 are both double lug structures; and multiple hydraulic cylinders 4 are connected to the main hydraulic station 5.

[0089] The above description is only a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.

Claims

1. A method for modifying the pressing device of a side-tilting tipper, characterized in that: The modification method described above is applicable to the modification of the wheel-pressing device of a Type II tilting tipper: The side-tilting type II tipper pressing device includes: a car-supporting beam (1), a balance beam (2), a car-clamping beam (6), a ground stop (7), a drive system (8), two end plates, multiple car-clamping arms (3), multiple pawls (9), and multiple arc-shaped ratchet racks (10). The vehicle support beam (1) is located on one side of the unloading platform and is parallel to the unloading platform. Each end of the vehicle support beam (1) is coaxially connected to an end plate, and the end plate is driven by the drive system (8). Multiple upper hinge seats (11) are evenly fixedly arranged on the top of the vehicle support beam (1). Each upper hinge seat (11) is fixedly equipped with a clamping arm (3). The middle part of the clamping arm (3) is hinged to its corresponding upper hinge seat (11). The top of the clamping arm (3) is fixedly arranged with... There is a balance beam (2) hinged to it. The bottom end of the clamping arm (3) is fixedly connected to the clamping beam (6). A ground stop (7) is fixedly installed below the clamping beam (6). The clamping beam (6) has pawls (9) that cooperate with each other. The pawls (9) cooperate with the arc-shaped ratchet rack (10) on the end plate on the same side. The drive system (8) is fixedly installed on the ground. The power output end of the drive system (8) is connected to each clamping arm (3) through the end plate, the clamping beam (6) in sequence. The modification method includes the following steps: S1, Fix the clamping arm, the operator controls the drive system (8) to start working, so that the back beam (1) drives the clamping arm (3) to start rotating until the clamping arm (3) runs directly above the back beam (1). At this time, the operator sets a channel steel (13) on each side of the clamping arm (3), and welds one end of the channel steel (13) to the clamping arm (3), and welds the other end of the channel steel (13) to the back beam (1), so that the clamping arm (3) and the back beam (1) are connected as an integral structure. At this time, proceed to the S2 step of disassembling the locking mechanism. S2, disassemble the locking mechanism. After the clamping arm (3) and the back beam (1) are connected as a whole, the operator removes each pawl (9), ground stop (7) and arc-shaped ratchet rack (10). After the ground stop (7), pawl (9) and arc-shaped ratchet rack (10) are all removed, proceed to S3 to lift the clamping beam. S3, lift the clamping beam, weld lifting lugs (14) at the left and right ends of the beam (1) and the clamping beam (6), after the lifting lugs (14) are welded, connect the lifting lugs (14) at the same end of the beam (1) and the clamping beam (6) with a wire rope and a hand chain hoist, and tighten the wire rope with the hand chain hoist to make the wire rope taut, and proceed to step S4 to disassemble the clamping beam (6); S4, disassemble the clamping beam. After the wire rope is taut, the operator disassembles the connecting bolts between the clamping beam (6) and each clamping arm (3). After all the connecting bolts between the clamping beam (6) and each clamping arm (3) are disassembled, the operator loosens the wire rope by pulling the hoist until the clamping beam (6) falls to the ground. After the clamping beam (6) has completely fallen to the ground, the operator disassembles the wire rope on the lifting lugs (14) at both ends of the clamping beam (6) and removes the clamping beam (6). After the clamping beam (6) is removed, proceed to the S5 step of modifying the clamping arm. S5, Modify the clamping arm, and open the clamping arm hinge hole (33), cylinder hinge hole (34), cylinder movable groove (35) and coal cleaning groove (36) at the corresponding positions on the clamping arm (3), and weld the cylinder seat (12) at the bottom of the car beam (1). After the cylinder seat (12) is welded, the cylinder body of the hydraulic cylinder (4) is hinged to the cylinder seat (12), and the telescopic rod of the hydraulic cylinder (4) is hinged to the cylinder hinge hole (34). After the hydraulic cylinder (4) is installed, a protection device (32) is installed on each side of the hydraulic cylinder (4). After the protection device (32) is installed, a counterweight block (31) is welded to the bottom of the clamping arm (3), and the channel steel (13) welded to the clamping arm (3) is removed. The hydraulic cylinders (4) and the main hydraulic station (5) are connected through the hydraulic oil pipe. When the hydraulic cylinders (4) are connected to the main hydraulic station (5), the modification method is completed.

2. The method for modifying the vehicle pressing device of a side-tilting tipper according to claim 1, characterized in that: In the S3 lifting clamp beam, the rated load of the lifting lug (14), wire rope and hand hoist is greater than ten tons.

3. The method for modifying the vehicle pressing device of a side-tilting tipper according to claim 2, characterized in that: The bottom end of each clamping arm (3) is fixedly provided with a counterweight (31), the upper hinge seat (11) and the cylinder seat (12) are both double-ear plate structures, and the multiple hydraulic cylinders (4) are all connected to the main hydraulic station (5).

4. A method for modifying the vehicle pressing device of a side-tilting tipper according to claim 1, 2 or 3, characterized in that: The modification method yields a vehicle-pressing device for the side-tilting tipper: The vehicle support beam (1) is set on one side of the unloading platform. The vehicle support beam (1) is set parallel to the unloading platform. Each end of the vehicle support beam (1) is coaxially connected to a drive end plate. Multiple upper hinge seats (11) are uniformly fixed on the top of the vehicle support beam (1). Multiple cylinder seats (12) are uniformly fixed on the bottom of the vehicle support beam (1). The vehicle support beam (1) rotates with the middle part of the clamping arm (3) through the upper hinge seat (11) on its top. The cylinder body of the hydraulic cylinder (4) is hinged to its corresponding cylinder seat (12). The telescopic rod of the hydraulic cylinder (4) is hinged to its corresponding clamping arm (3). The top of the clamping arm (3) rotates with the equalization beam (2). The clamping arms (3) are evenly distributed on the vehicle support beam (1).

5. A method for modifying the vehicle pressing device of a side-tilting tipper according to claim 4, characterized in that: A protective device (32) is provided on each side of the hydraulic cylinder (4). The protective device (32) is an arc-shaped cover structure. The two protective devices (32) are respectively located on the sides of their corresponding hydraulic cylinder (4). The protective device (32) is in clearance fit with the clamping arm (3). The straight side of the protective device (32) is fixedly connected to the side wall of the car beam (1).

6. A method for modifying the pressing device of a side-tilting tipper according to claim 5, characterized in that: The clamping arm (3) is provided with a clamping arm hinge hole (33), a hydraulic cylinder hinge hole (34) and a hydraulic cylinder movable groove (35) on the side near the car beam (1). The clamping arm hinge hole (33) is located in the middle of the clamping arm (3). The hydraulic cylinder hinge hole (34) and the hydraulic cylinder movable groove (35) are opened sequentially from the end of the clamping arm hinge hole (33) toward the bottom end of the clamping arm (3). The clamping arm (3) is provided with a coal cleaning groove (36) on the side away from the car beam (1).

7. A method for modifying the vehicle pressing device of a side-tilting tipper according to claim 1, characterized in that: The weight of the counterweight (31) is 880 to 1080 kg.

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