Preassembling tool for discharging door air cylinder of asphalt mixing equipment

Abstract

The utility model discloses a preassembling tool for a discharging door air cylinder of asphalt mixing equipment, and belongs to the technical field of asphalt mixing equipment parts. The preassembling tool comprises a head connecting seat, a simulation cylinder rod assembly, a cylinder body support and a stroke limiting assembly. The cylinder body support comprises a base connecting end plate, a cross-shaped end plate and four pieces of L-shaped angle steel, the base connecting end plate is connected with the head connecting seat, the four pieces of L-shaped angle steel are installed between the base connecting end plate and the cross-shaped end plate, a movable hole is formed in the middle of the cross-shaped end plate, and the simulation air cylinder rod assembly comprises an air cylinder rod and a lug plate connecting seat. A stroke limiting assembly is installed on the cylinder body support. A solid air cylinder is replaced by tool simulation, and the procedures of positioning, drilling, welding and the like in the preassembling process of the emptying door are completed; therefore, when the assembly procedure of a welding team stops, the welding team does not need to depend on a preassembling tool of a solid cylinder, so that the positioning, drilling and welding procedures are completed in advance, and the production progress and the installation precision are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to bituminous mixing equipment component technical field, more specifically refers to a kind of preloading tool for bituminous mixing equipment discharge door cylinder. BACKGROUND

[0002] In the manufacturing process of bituminous mixing equipment, the cylinder installation of discharge device such as hot stock bin, mixing cylinder and finished product bin is one of the key processes.

[0003] However, in actual production, due to the delay of supply of purchased cylinder, insufficient inventory in the factory or complicated material taking process, the cylinder often cannot be delivered to the assembly station in time, resulting in the stagnation of assembly process and the extension of production cycle. Meanwhile, when preassembling and welding cylinder support lugs, the welding team needs to take the cylinder in advance for positioning, but it needs to be removed later to prevent paint damage, which is a complicated process and prone to rework due to manual positioning deviation. Therefore, there is an urgent need for a preloading tool for bituminous mixing equipment discharge door cylinder. SUMMARY

[0004] The utility model provides a kind of preloading tool for bituminous mixing equipment discharge door cylinder, to solve the problem of stagnation of assembly process due to the delay of supply of purchased cylinder, insufficient inventory in the factory or complicated material taking process, etc., resulting in the extension of production cycle, and rework caused by manual positioning deviation in traditional operation.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] 1. A preloading tool for bituminous mixing equipment discharge door cylinder, comprising a head connection seat, a simulated cylinder rod assembly, a cylinder body support and a stroke limiting assembly; the cylinder body support comprises a base connection end plate, a cross-shaped end plate and four L-shaped angle steels, the base connection end plate is connected with the head connection seat, the four L-shaped angle steels are installed between the base connection end plate and the cross-shaped end plate, one L-shaped angle steel is arranged in each quadrant of the cross-shaped end plate, each adjacent two L-shaped angle steels form a limiting block guide sliding groove, a movable hole is formed in the middle of the cross-shaped end plate, the simulated cylinder rod assembly comprises a cylinder rod and an ear plate connection seat, one end of the cylinder rod passes through the movable hole into the cylinder body support, a limiting block is arranged at the end of the cylinder rod in the cylinder body support, a limiting rod for stopping the limiting block is also arranged in the cylinder body support, the other end of the cylinder rod is fixedly connected with the ear plate connection seat, and the stroke limiting assembly is installed on the cylinder body support.

[0007] Further, the limiting block is cylindrical, and the limiting block is detachably connected with the cylinder rod through a nut and a screw rod.

[0008] Further, the head connection seat is detachably connected with the base connection end plate through a bolt and a nut.

[0009] Further, a shaft sleeve is fixed at the active hole, and the cylinder rod passes through the shaft sleeve.

[0010] Further, the stroke limiting assembly is installed beside the limiting rod.

[0011] Further, the stroke limiting assembly comprises an L-shaped limiting plate, a mounting block, a fastening bolt and a fastening nut, the mounting block is fixed on the L-shaped angle steel, the mounting block is provided with a threaded connection hole, the L-shaped limiting plate is arranged above the mounting block, the L-shaped limiting plate is provided with a through hole, the fastening bolt is connected with the threaded connection hole and passes through the through hole, and the end of the fastening bolt is connected with the fastening nut.

[0012] Further, the head connecting seat and the equipment fixing connecting frame, the ear plate connecting seat and the discharge door ear plate are hinged through the pin shaft and the split pin.

[0013] From the above description of the structure of the utility model, compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The pre-assembly tool of the utility model comprises a head connecting seat, a simulated cylinder rod assembly, a cylinder body support and a stroke limiting assembly, the core principle of the pre-assembly tool is to replace the actual cylinder with the simulated cylinder rod assembly to complete positioning, drilling, welding and other processes in the pre-assembly process of the discharge door, so that the welding team can complete the positioning, drilling and welding processes in advance without relying on the pre-assembly tool of the entity cylinder when the assembly process is stalled, thereby guaranteeing the production progress and installation precision and greatly shortening the production cycle of the whole machine.

[0015] 2. The cylinder body support, the limiting rod and the stroke limiting assembly realize high-precision reference positioning and stroke locking, and avoid random errors caused by positioning according to the experience of workers in traditional operation. Welding is carried out based on the tool, so that the hole positions of the ear plate connecting seat and the connecting ear plate of the discharge door and the hole positions between the cylinder body support and the head connecting seat are corresponding when the actual cylinder is installed, quality hidden dangers such as jamming of the discharge door, incoordinate movement and poor sealing in the later installation are effectively eliminated, and the rework and maintenance costs caused by installation errors are greatly reduced.

[0016] 3. The cylinder rod and the cylinder body support have good universality, for different brands or models of cylinders, only the corresponding connecting seat needs to be replaced, so that the same tool body can quickly adapt to various installation requirements, the utilization rate of the tool is greatly improved, and the investment cost of special tools is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model.

[0018] Figure 2 It is an extension state view of the utility model.

[0019] Figure 3 Figure 2 is a schematic view of the present application in an expanded state. DETAILED DESCRIPTION

[0020] The specific embodiments of the present application will be described below with reference to the drawings. In order to fully understand the present application, many details will be described below, but the present application can be implemented without these details for those skilled in the art.

[0021] The pre-assembly tool mainly comprises a cylinder body support 10, a simulated cylinder rod assembly 20, a head connecting seat 30, and a stroke limiting assembly 40. Figure 1 The pre-assembly tool mainly comprises a cylinder body support 10, a simulated cylinder rod assembly 20, a head connecting seat 30, and a stroke limiting assembly 40.

[0022] In the present embodiment, the above-mentioned cylinder body support 10 comprises a base connecting end plate 11, a cross-shaped end plate 12, and four L-shaped angle steels 13. The base connecting end plate 11 is detachably connected with the head connecting seat 30 through a bolt 111 and a nut 112. The cross-shaped end plate 12 is a steel plate with a circular movable hole 120 in the middle, and the plate surface is divided into four quadrants.

[0023] The above-mentioned four L-shaped angle steels 13 are installed between the base connecting end plate 11 and the cross-shaped end plate 12. Specifically, each L-shaped angle steel 13 is arranged in each quadrant of the cross-shaped end plate 12, that is, one L-shaped angle steel 13 is installed in each quadrant. The two ends of each L-shaped angle steel 13 are respectively welded and fixed with the base connecting end plate 11 and the cross-shaped end plate 12. The inner sides of the right angles of each adjacent two L-shaped angle steels 13 are naturally enclosed to form a rectangular guide sliding groove 130. These guide sliding grooves 130 provide accurate linear motion tracks for internal moving parts.

[0024] Referring to Figures 1-2 The above-mentioned simulated cylinder assembly 20 comprises a cylinder rod 21 and an ear plate connecting seat 22. The cylinder rod 21 is axially movably arranged in the cylinder body support 10. Specifically, one end of the cylinder rod 21 passes through the movable hole 120 into the cylinder body support 10, and the end of the cylinder rod 21 in the cylinder body support 10 is provided with a limiting block 23. The limiting block 23 is preferably a cylindrical structure, and the limiting block 23 is detachably connected with the cylinder rod 21 through a screw rod and a nut 112. Specifically, a central hole can be formed in the center of the limiting block 23, a screw rod is fixed to the end of the cylinder rod 21, the screw rod passes through the central hole of the limiting block 23, and then is locked by the nut 112. The limiting block 23 can slide in the above-mentioned guide sliding groove 130. The other end of the cylinder rod 21 is fixedly connected with the ear plate connecting seat 22, and the ear plate connecting seat 22 is hingedly connected with the discharge door.

[0025] A shaft sleeve 121 is fixedly arranged at the movable hole 120 of the cross-shaped end plate 12, and the cylinder rod 21 passes through the shaft sleeve 121. A radial threaded hole is formed in the side wall of the shaft sleeve 121, and a fastening screw 122 is arranged in the radial threaded hole. When the limiting block of the cylinder rod 21 is slid to abut against the side surface of the cross-shaped end plate 12, the cylinder rod 21 is fixed by locking the fastening screw 122.

[0026] The limiting rod 14 is further arranged in the end of the cylinder support 10 away from the movable hole 120. The limiting rod 14 is used as a mechanical stop for the retraction stroke when the cylinder rod 21 is retracted.

[0027] Continuing to refer to Figure 1 , the stroke limiting assembly 40 is arranged on the cylinder support 10, and specifically beside the limiting rod 14. The stroke limiting assembly 40 comprises an L-shaped limiting plate 41, a mounting block 42, a fastening bolt 43 and a fastening nut 44. The mounting block 42 is fixedly arranged on one of the L-shaped angle steels 13 of the cylinder support 10. Threaded connection holes (not shown in the figure) are formed in the mounting block 42 and the corresponding L-shaped angle steel 13. The L-shaped limiting plate 41 is arranged above the mounting block 42. The L-shaped limiting plate 41 is provided with a through hole (not shown in the figure). The fastening bolt 43 is connected with the threaded connection holes and passes through the through hole. The end of the fastening bolt 43 is connected with the fastening nut 44.

[0028] When the limiting block 23 on the cylinder rod 21 is slid in the guide sliding groove 130 to abut against the end of the limiting rod 14 (i.e. the cylinder rod is in the retracted state), the fastening bolt 43 is loosened first, the L-shaped limiting plate 41 is rotated to the side surface opposite to the limiting rod 23, and then the fastening bolt 43 is tightened to limit the cylinder rod. When the fastening bolt 43 is loosened, the L-shaped limiting plate 41 is rotated to the initial position, and the cylinder rod 21 can be pulled out.

[0029] Continuing to refer to Figure 1 , the head connecting seat 30 and the equipment fixing connecting frame, and the ear plate connecting seat 22 and the discharge door ear plate are rotatably connected through the pin shaft 31 and the split pin 32. Specifically, the head connecting seat 30 is fixedly connected with two parallel connecting blocks 33. An axle hole (not shown in the figure) is formed in each connecting block 33. During installation, the two connecting blocks 33 are arranged between the original fixed connecting frames on the equipment, the pin shaft 31 passes through the holes in the fixed connecting frames and the two axle holes, and the split pin 32 is locked, so that the position reference of the head of the tool is completely consistent with the installation reference of the actual cylinder.

[0030] The tooling simulation replaces the entity cylinder, so that the welding team can independently and in advance complete positioning, drilling and welding of the connecting ear plate of the discharge door under the premise that the cylinder is not delivered or not received, and the production cycle originally stagnated due to waiting for the cylinder is compressed to nearly zero. After the actual cylinder is in place, only simple final assembly is required to complete the entire installation, significantly shortening the production cycle of the whole machine and effectively solving the problem of production line blockage caused by delayed external purchase.

[0031] Reference Figures 2-3 The working process of the utility model is as follows:

[0032] 1. Reference positioning: the head connecting seat 30 is connected with the equipment fixed connecting frame through the pin shaft 31 and the split pin 32, and the reference positioning of the tooling one end is completed. At the same time, the head connecting seat 30 is connected and fixed with the base connecting end plate 101 through the bolt.

[0033] 2. Stroke simulation and adjustment: according to the installation drawing of the actual cylinder, the angle of the simulated cylinder rod is adjusted, the ear plate connecting seat 22 is connected with the ear plate of the discharge door through the pin shaft 31 and the split pin 32. The extension and retraction mode is formed by pushing and pulling the cylinder rod 21, and the specific process is as follows:

[0034] When the limiting block 23 of the cylinder rod 21 slides in the guide sliding groove 130 and abuts against the side surface of the cross-shaped end plate 12, the cylinder rod 21 is fixed through the fastening screw on the locking shaft sleeve 121, so that the cylinder is in the outward ejection state.

[0035] When the limiting block 23 on the cylinder rod 21 slides in the guide sliding groove 130 and abuts against the end of the limiting rod 14, the L-shaped limiting plate 41 is rotated to the side surface opposite to the limiting block 23, and then the fastening bolt 43 is tightened to lock the position of the cylinder rod 21, so that the cylinder is in the retraction state.

[0036] 3. Pre-installation operation: at this time, the tooling has completely simulated the final installation state of the actual cylinder. Based on the locked cylinder rod 21, the welding and reinforcement of the connecting ear plate of the discharge door can be carried out. At the same time, the positioning plate of the cylinder support can also be welded according to the positioned cylinder body support 20, so as to reserve accurate position for subsequent actual cylinder installation.

[0037] 4. Disassembly and final installation: after all the pre-installation processes are completed, the locking parts are loosened, and the entire pre-installation tooling is disassembled. After the actual cylinder is delivered, the piston rod of the cylinder can be directly connected with the welded ear plate of the discharge door, and the cylinder body can be connected with the welded positioning plate, so that the installation is fast and accurate without the need for further adjustment.

[0038] The pre-assembly tool of the utility model is based on the accurate size parameter design of the cylinder, and realizes the high-precision reference positioning and stroke locking through the cylinder body support 20 and the stroke limiting assembly 40, completely avoids the random error caused by the positioning according to the worker's experience in the traditional operation. Welding is carried out based on the tool, can ensure that the hole positions of the ear plate connecting seat 22 and the discharge door connecting ear plate, the cylinder body support 20 and the head connecting seat 30 correspond when the actual cylinder is installed, effectively eliminates the quality hidden danger such as the discharge door jam, the incoordinate movement, the not tight sealing and the like in the later stage installation, greatly reduces the rework and the maintenance cost caused by the installation error.

[0039] It can be understood that the specific form of the head connecting seat 30 can be designed according to the actual brand, and is connected with the cylinder rod 21 through a detachable mode (such as a bolt), and only a small amount of components need to be replaced to quickly adapt, enhance the universality, and greatly improve the utilization rate and the economy of the tool.

[0040] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, should be covered in the protection scope of the utility model.

Claims

1. A preloading tool for a discharge gate cylinder of an asphalt mixing plant, characterized in that: The device comprises a head connecting seat, a simulated cylinder rod assembly, a cylinder body support and a stroke limiting assembly; the cylinder body support comprises a base connecting end plate, a cross-shaped end plate and four L-shaped angle steels, the base connecting end plate is connected with the head connecting seat, the four L-shaped angle steels are installed between the base connecting end plate and the cross-shaped end plate, one L-shaped angle steel is arranged in each quadrant of the cross-shaped end plate, each adjacent two L-shaped angle steels form a limiting block guide sliding groove, a movable hole is formed in the middle of the cross-shaped end plate, the simulated cylinder rod assembly comprises a cylinder rod and an ear plate connecting seat, one end of the cylinder rod passes through the movable hole and enters the cylinder body support, an end of the cylinder rod in the cylinder body support is provided with a limiting block, the cylinder body support is further provided with a limiting rod for stopping the limiting block, the other end of the cylinder rod is fixedly connected with the ear plate connecting seat, and the stroke limiting assembly is installed on the cylinder body support.

2. A preloading tool for a discharge gate cylinder of an asphalt mixing plant according to claim 1, characterized in that: The limiting block is cylindrical, and the limiting block is detachably connected with the cylinder rod through a nut and a screw rod.

3. A preloading tool for a discharge gate cylinder of an asphalt mixing plant according to claim 1, characterized in that: The head connecting seat is detachably connected with the base connecting end plate through bolts and nuts.

4. The preloading tooling for the discharge gate cylinder of an asphalt mixing plant according to claim 1, wherein: An axle sleeve is fixed corresponding to the movable hole, and the cylinder rod passes through the axle sleeve.

5. A preloading tool for a discharge gate cylinder of an asphalt mixing plant according to claim 1, characterized in that: The stroke limiting assembly is installed beside the limiting rod.

6. A preloading tool for a discharge gate cylinder of an asphalt mixing plant according to claim 5, characterized in that: The stroke limiting assembly comprises an L-shaped limiting plate, a mounting block, a fastening bolt and a fastening nut, the mounting block is fixed on the L-shaped angle steel, the mounting block is provided with a threaded connection hole, the L-shaped limiting plate is arranged above the mounting block, the L-shaped limiting plate is provided with a through hole, the fastening bolt is connected with the threaded connection hole and passes through the through hole, and the fastening nut is connected with the end of the fastening bolt.

7. A preloading tool for a discharge gate cylinder of an asphalt mixing plant according to claim 1, characterized in that: The head connecting seat and the equipment fixing connecting frame are hingedly connected through a pin shaft and a split pin, and the ear plate connecting seat and the discharging door ear plate are hingedly connected through a pin shaft and a split pin.

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