Lower supporting seat of supporting rod of backup plate of car dumper and supporting method

Abstract

The invention belongs to the technical field of tippler dumping backup plates, and particularly relates to a lower supporting seat of a tippler backup plate supporting rod and a supporting method.The lower supporting seat comprises a bottom plate and vertical rib plates, the vertical rib plates are welded to the left end and the right end of the upper surface of the bottom plate respectively, pin shaft holes are formed in the vertical rib plates, and bolt holes are formed in the positions, located on the two sides of the vertical rib plates, of the bottom plate. The supporting method comprises the following steps that S1, it is determined that the backup plate supporting rod is connected with the upper supporting base; s2, a lower supporting seat of the backup plate is cleaned up, and a bolt of the lower supporting seat on the side, with the large clearance, of the backup plate is removed, so that the backup plate inclines towards the side to the maximum; s3, outwards translating the lower supporting seat of the backup plate to the maximum, and returning to the opposite direction by 4-6mm; s4, the backup plate is temporarily fixed, bolt holes are formed in a bottom plate of the lower supporting seat again, and the bolt holes are fixed through bolts; and S5, the consistency of the centers of the lower supporting seats of the two supporting rods is guaranteed. According to the lower supporting seat and the supporting method, random movement of the backup plate in the vehicle entering and exiting direction is thoroughly eradicated, backup plate clearance is effectively reduced, and signal loss is prevented.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of the car dumper unloading rest plate, and particularly relates to a lower support seat of a car dumper rest plate support rod and a support method. BACKGROUND

[0002] The car dumper is a large-scale equipment used for unloading railway open car bulk materials, and is a key equipment for unloading materials in front of a steel enterprise. Currently, there are four car dumpers in the iron-making plant of TISCO, i.e., a south car dumper, a north car dumper, a double car dumper and a new car dumper. The south car dumper, the north car dumper and the new car dumper are C-type single-car dumpers, and the double car dumper is a C-type double-car dumper. The car dumpers unload all the train materials (pellets, coke, South African ore, Se ore, Yangdi ore, Caber ore, Yuanjiacun powder, coal and the like) of TISCO, and ensure the logistics of the coking, sintering, iron-making and power generation of TISCO.

[0003] The working process of the car dumper is simply described as follows: a hydraulic system motor is started, a pressure beam is raised to the highest position, a rest plate is retracted to the original position, a car shifter moves a car body to a designated parking position of the car dumper, the car shifter automatically uncouples and then drives out, the pressure beam is pressed down to the top of the car body on both sides of the car body, the rest plate is leaned out to one side of the car body, and then automatic unloading and returning are performed, the rest plate is retracted to the original position, the pressure beam is raised to the highest position, the car shifter is again used to pull the car body into the car dumper, and the empty car body after unloading is pushed out to a car moving platform, and the above operations are repeatedly and continuously performed to unload the open car.

[0004] During the unloading operation, the rest plate signal is often lost. The main reason for the signal loss is that the rest plate has too large play in the direction of entering and leaving the car body. According to the field measurement, the maximum play can reach 60 mm or even more, which causes the rest plate to be unable to be sensed by the original position and position close switches, and results in stopping and unloading. The main reason for the rest plate having too large play in the direction of entering and leaving the car body is the installation mode and structure of the lower support seat of the rest plate support rod.

[0005] The rest plate support seat of the car dumper frequently having such a fault has a parallelogram structure. The lower end of the rest plate is welded to the upper support seat, the upper support seat is connected to the upper end of the support rod through a pin shaft, a joint bearing is installed in the upper and lower nodes of the support rod, the lower end of the support rod is connected to the lower support seat through a pin shaft, and the lower support seat is connected to the main machine through a bolt, thereby forming a parallelogram structure. Moreover, the play of the rest plate gradually increases with the wear of the joint bearing. There is no good method or measure to control the play in view of the situation, and the rest plate signal is very unstable. Through analysis of the movement track of the support, it is found that the entire movement track of the support has the lower hinge point as the center, and the rest plate part randomly performs circular arc movement in the direction of entering and leaving the car body. It is difficult to control the change of the play, the original position signal or the position signal of the rest plate is frequently not sensed, the car dumper is not operated, and the continuous operation process is greatly affected. The unloading efficiency and zero fault of the car dumper are seriously restricted, and the car dumper becomes the most frequent fault. SUMMARY

[0006] The present application aims to provide a lower support seat of a support rod of a car dumper back plate and a support method, and solve the problem of frequent loss of back plate signal during the tipping operation.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solutions: A lower support seat of a support rod of a car dumper back plate, comprising a bottom plate and a vertical rib plate, vertical rib plates are welded to the left and right ends of the upper surface of the bottom plate, pin shaft holes are formed in the vertical rib plates, bolt holes are formed in the bottom plate on both sides of the vertical rib plates, the lower support seat is connected with the support rod through the pin shaft, and joint bearings are installed at the end portions of the support rod.

[0008] Preferably, the bottom plate is a 20mm steel plate connected with the main structure by M24 bolts.

[0009] A support method of a support rod of a car dumper back plate, and the specific steps are as follows: S1: welding the lower end portion of the back plate to the upper support seat, connecting the upper support seat with the upper end portion of the support rod, and installing joint bearings at the upper end portion and the lower end portion of the support rod; S2: cleaning the lower support seat of the back plate, removing the bolts of the lower support seat on the side with larger back plate play, and tilting the back plate to the maximum on the side; S3: translating the lower support seat of the back plate to the maximum outward, and then returning to the opposite direction (i.e. the original position direction) by 4-6mm (according to the play of the joint bearing, mainly to ensure that the joint bearing freely moves under the minimum play); S4: temporarily fixing the back plate, re-drilling bolt holes in the bottom plate of the lower support seat and fixing by bolts; S5: ensuring the consistency of the centers of the lower support seats of the two support rods during the whole process, effectively reducing the play of the back plate and preventing jamming.

[0010] Preferably, if the width of the bottom plate is insufficient in step S4, the width is widened as needed, the vertical rib plate is welded, the bottom plate is leveled, and then the lower support seat of the back plate is fixed through the pin shaft hole.

[0011] Compared with the prior art, the present application has the following beneficial effects: (1) The method greatly reduces the inclination of the support rod of the car dumper back plate, translates the lower support seat on the side with larger back plate play outward, changes the original parallelogram into an isosceles trapezoid, completely eliminates the random movement of the back plate in the direction of entering and exiting the car, effectively reduces the play of the back plate, prevents signal loss during the tipping operation, prolongs the service life of each component of the back plate system, significantly improves the tipping operation efficiency of the car dumper, improves the operation rate while avoiding fault shutdown and other economic losses; (2) The method has low cost, simple installation, obvious effect, can realize continuous tipping operation, improve operation efficiency, and ensure continuous operation of the system. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 These are side views and front views of the structure of an embodiment of the present invention.

[0013] Explanation of reference numerals in the attached diagram: 1. Base plate; 2. Vertical stiffener plate; 3. Pin hole; 4. Bolt hole. Detailed Implementation

[0014] The technical solution of the present invention will be described in detail below with reference to the embodiments.

[0015] like Figure 1 As shown, a lower support base for a tipper's backrest support rod includes a base plate 1 and vertical stiffener plates 2. The vertical stiffener plates 2 are welded to the left and right ends of the upper surface of the base plate 1, and pin holes 3 are opened on the vertical stiffener plates 2. Bolt holes 4 are opened on both sides of the vertical stiffener plates 2 on the base plate 1. The lower support base is connected to the support rod by pins. A spherical bearing is installed at the end of the support rod. The base plate 1 is a 20mm steel plate and is connected to the main structure with M24 bolts.

[0016] A method for supporting the support rod of a tippler's backrest, the specific steps of which are as follows: S1: Determine that the lower end of the backing plate is welded to the upper support seat, the upper support seat is connected to the upper end of the support rod, and the upper and lower ends of the support rod are installed with spherical bearings. S2: Clean the lower support base of the backplate, remove the bolts under the support base on the side with larger clearance of the backplate, and tilt the backplate to this side to a maximum of 60mm. S3: Move the lower support of the backing plate outward to the maximum, with a joint bearing clearance of 10mm, and then return it to the opposite direction (i.e., the original position direction) by 6mm; S4: Temporarily fix the backing plate, re-drill bolt holes 4 in the base plate 1 of the lower support seat and fix it with bolts; if the width of the base plate 1 is insufficient, weld the vertical stiffening plate 2, level the base plate 1, and then fix the lower support seat of the backing plate through the pin hole 3. S5: Ensure the consistency of the center of the lower support seat of the two support rods throughout the process.

[0017] Before the modification, the backplate had a large and uncontrollable range of motion, resulting in frequent malfunctions and damage to the backplate position detection switch. After the modification, the backplate's clearance was reduced to below 10mm, preventing these frequent issues. Furthermore, the reduced clearance prevents jamming, reducing wear on the joint bearings and extending their lifespan. The near-zero jamming also reduces pressure in the backplate's hydraulic system, preventing the bursting of oil seals, joints, hoses, etc., thus extending the lifespan of the hydraulic components, pipelines, and oil seals. The reduced clearance also decreases the range of motion of the backplate cylinder, extending the lifespan of the cylinder and its base.

Claims

1. A lower support shoe for a roll-over machine bed plate support rod, characterized by, It includes a bottom plate and a vertical stiffener plate, the upper surface of the bottom plate is welded with the vertical stiffener plate at both ends, the vertical stiffener plate is provided with a pin hole, the bottom plate is provided with a bolt hole at both sides of the vertical stiffener plate, the lower support base is connected with the support rod through a pin, and the end of the support rod is provided with a joint bearing.

2. A lower support base for a support rod of a roll-over machine back plate according to claim 1, wherein, The bottom plate is a 20mm steel plate, and is connected with the main body structure through M24 bolts.

3. A method of supporting a roll-over machine backstop support rod based on the under support shoe of claim 1, wherein, The specific steps are as follows: S1: welding the lower end of the backrest plate with the upper support base, connecting the upper support base with the upper end of the support rod, and installing joint bearings on the upper end and the lower end of the support rod; S2: cleaning the lower support base of the backrest plate, removing the bolt of the lower support base on the side with larger play of the backrest plate, and tilting the backrest plate to the maximum on the side; S3: translating the lower support base of the backrest plate outward to the maximum, and then back to 4-6mm in the opposite direction; S4: temporarily fixing the backrest plate, re-opening the bolt hole on the bottom plate of the lower support base and fixing it with a bolt; S5: ensuring the consistency of the centers of the lower support bases of the two support rods during the whole process.

4. The method of claim 3, wherein, If the width of the bottom plate is insufficient in the step S4, the width is widened according to the need, the vertical stiffener plate is welded, the bottom plate is leveled, and then the lower support base of the backrest plate is fixed through the pin hole.

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