High-stability rolling wheel machine

Abstract

The utility model relates to a high-stability grinding wheel machine, which comprises a rack, a main forming grinding wheel part, two groups of secondary forming grinding wheel parts and an axial clamping part, the main forming grinding wheel part is arranged in the upper end of the rack, and the two groups of secondary forming grinding wheel parts are respectively arranged in the rack close to the front side and the rear side of the lower end; the axial clamping part comprises a left clamping part and a right clamping part, and the left clamping part and the right clamping part are installed at the positions, close to the left side and the right side of the lower end, in the rack correspondingly. The rolling mill has the advantages that the two driven rolling wheels are supported on the two sides below a blank at a certain included angle, the main rolling wheel presses the upper face of the blank from the position over the blank, the three rolling wheels support the peripheral face of the rolled blank, a three-point supporting mode is formed, the structure is stable, deviation is avoided, safety and reliability are achieved, and the service life of the rolling mill is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of milling wheel processing, in particular to a milling wheel machine with high stability. Background Art

[0002] In the past, the processing of overhead crane wheels was done by casting, which was then turned into a blank. However, this method reserved too much processing for the outer circumference of the wheel, which increased the cost of raw materials. Currently, there is also a forging method, which clamps the upper and lower axes and extrude the outer circumference of the blank left and right. However, due to this structural extrusion method, it is easy to cause front and rear deviations, and the center position of the blank is very high. Once it deviates, it will cause the upper and lower clamping shafts to bend and deform. Once deformed, it cannot meet production needs. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a high-stability roller mill with ingenious design and reasonable and compact structure.

[0004] The technical solution of this utility model:

[0005] A high-stability roller mill, which includes a frame, a main forming roller mill part, a secondary forming roller mill part, and an axial clamping part. The main forming roller mill part is installed inside the upper end of the frame. Two groups of secondary forming roller mill parts are provided and the two groups are respectively installed inside the frame near the front and rear sides of the lower end. The axial clamping part includes a left clamping part and a right clamping part. The left clamping part and the right clamping part are respectively installed inside the frame near the left and right sides of the lower end. The main forming roller mill part includes a lifting cylinder, a slider, a roller rotation drive mechanism, and a main roller. The lifting cylinder is designed in two groups and is respectively installed on both sides of the upper end of the frame. The lower end driving ends of the two groups of lifting cylinders respectively drive the two sides of the upper end of the slider. The roller rotation drive mechanism The slider is installed in the middle position of the upper end, and the lower end of the roller rotation driving mechanism passes through the slider and drives the main roller; the two groups of slave forming roller parts respectively include a driven oil cylinder and a driven roller, and the two driven oil cylinders are respectively installed at the two sides of the lower end inside the frame and the front ends of the two driven oil cylinders are respectively lifted upward, and the front end driving ends of the two driven oil cylinders are respectively rotatably installed with a driven roller, so that the two driven rollers are matched at a certain angle; the two driven rollers are respectively supported on the lower sides of the outer circumference of the round cake blank, and the left clamping part and the right clamping part axially clamp the round cake blank from both sides; the lifting cylinder controls the slider to descend and drives the main roller to press down on the outer circumference of the round cake blank.

[0006] The driven roller forms a certain angle of 120 degrees, and the main roller and the two driven rollers also form angles of 120 degrees.

[0007] The main roller and the driven roller have the same structural design, both comprising a pancake-shaped main body, an annular protrusion is arranged in the middle of the outer circumference of the main body, and annular steps are formed between the axial sides of the annular protrusion and the outer circumference of the main body.

[0008] The left clamping part and the right clamping part are symmetrically designed, and both include a clamping oil cylinder and a male mold. The male mold is rotatably mounted on the driving end of the clamping oil cylinder.

[0009] A sliding sleeve is fixedly installed on the driving end of the clamping oil cylinder, one end of the connecting shaft is installed in the middle of the rear end of the male mold, the other end of the shaft extends into the interior of the sliding sleeve and the shaft is rotatably installed in the sliding sleeve through a bearing.

[0010] The front end of the male mold is designed to be a protrusion that imitates the shape of the axial end face of a wheel.

[0011] The outer side of the sliding sleeve is slidably mounted on the frame through a fixing sleeve, the fixing sleeve is fixed on the frame, and the sliding sleeve is slidably mounted inside the fixing sleeve.

[0012] A wear ring is respectively installed at two sides of the interior of the fixed sleeve, and the sliding sleeve is slidably installed in the wear ring.

[0013] The roller rotation drive mechanism includes a motor, a reducer, a driving gear and a driven gear. The motor and the reducer are respectively installed on the slider. The motor drives the reducer. The output end of the reducer is installed with a driving gear. The driven gear is rotatably installed on the lower end of the slider through a rotating shaft. The main roller is fixedly installed on the rotating shaft, and the driving gear drives the driven gear to mesh.

[0014] The roller rotation driving mechanism also includes a bridge gear, which is rotatably mounted in the middle of the slider, the driving gear drives the upper side of the bridge gear to mesh, and the lower side of the bridge gear drives the driven gear to mesh.

[0015] A U-shaped frame is installed at the front driving end of the driven oil cylinder, and the driven roller is rotatably installed in the U-shaped frame. An inclined slide groove is designed on both sides of the lower end of the frame. The driven oil cylinder is inclinedly installed on both sides of the lower part of the frame, and the lower end of the U-shaped frame slides on the inclined slide groove.

[0016] The advantages of the utility model are:

[0017] 1. Two driven rolling wheels are supported at a certain angle on both sides below the blank. The main rolling wheel presses down on the blank from directly above it. The three rolling wheels support the outer peripheral surface of the rolled blank, forming a three-point support method. The structure is stable, will not deviate, is safe and reliable, and ensures the service life of the equipment;

[0018] 2. The outer circumference of the main roller and the driven roller is designed with an annular convex structure to form the outer circumference structure of the contoured crane wheel, which squeezes out the required wheel groove structure. The machining allowance of the wheel groove turning is reduced, which is convenient for machining and improves efficiency.

[0019] 3. The inner side of the male mold is designed to be the axial end face structure of the contoured crane wheel. Through extrusion, the blank can be not only axially positioned, but also the shapes on both sides of the axial direction of the blank can be extruded and formed; the male mold can rotate after the two male molds clamp the blank through the rotating shaft and the sliding sleeve rotation design. At the same time, the sliding sleeve can slide with the fixed sleeve to realize the expansion and contraction of the male mold. The fixed sleeve is fixed on the frame, the fixed sleeve holds the sliding sleeve, and the sliding sleeve limits the rotating shaft. After the two male molds clamp the blank, the force can also be effectively shared on the frame, ensuring the stable operation of the structure, safety and reliability;

[0020] 4. The main rolling wheel is rotatably installed under the slider. The motor drives the main rolling wheel to rotate actively through the gear structure, so that the outer peripheral surface of the main rolling wheel can be pressed down on the outer peripheral surface of the blank and provide a rotational driving force. It also ensures that the main rolling wheel can effectively extrude the blank and ensure the outer peripheral surface of the blank is formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a main schematic diagram of the utility model.

[0022] Figure 2 It is a side view schematic diagram of the utility model.

[0023] Figure 3 It is a partially enlarged schematic diagram of the main forming roller part of the utility model.

[0024] Figure 4 It is a partial enlarged schematic diagram of the forming roller part and the axial clamping part of the utility model. DETAILED DESCRIPTION

[0025] See attached Figure 1-4A high-stability roller mill comprises a frame 1, a main forming roller mill portion 2, a secondary forming roller mill portion 3, and an axial clamping portion 4. The main forming roller mill portion 2 is mounted inside the upper end of the frame 1. Two groups of secondary forming roller mill portions 3 are arranged and the two groups are respectively mounted inside the frame 1 near the front and rear sides of the lower end. The axial clamping portion 4 comprises a left clamping portion 41 and a right clamping portion 42. The left clamping portion 41 and the right clamping portion 42 are respectively mounted inside the frame 1 near the left and right sides of the lower end. The main forming roller mill portion 2 comprises a lifting cylinder 21, a slider 22, a roller rotation drive mechanism 23, and a main roller 24. The lifting cylinder 21 is designed in two groups and is respectively mounted on both sides of the upper end of the frame 1. The lower end driving ends of the two groups of lifting cylinders 21 respectively drive the upper ends of the sliders 22. The roller rotation drive mechanism 23 is arranged on The slider 22 is installed in the middle position of the upper end, and the lower end of the roller rotation driving mechanism 23 passes through the slider 22 and then drives and connects to the main roller 24; the two groups of slave forming roller parts 3 respectively include a driven cylinder 31 and a driven roller 32, and the two driven cylinders 31 are respectively installed at the two sides of the lower end of the frame 1 and the front ends of the two driven cylinders 31 are respectively lifted upward, and the front end driving ends of the two driven cylinders 31 are respectively rotatably installed with a driven roller 32, so that the two driven rollers 32 are matched at a certain angle; the two driven rollers 32 are respectively supported on both sides of the outer circumference of the round cake blank 5, and the left clamping part 41 and the right clamping part 42 respectively clamp the round cake blank 5 axially from both sides; the lifting cylinder 21 controls the slider 22 to descend and drives the main roller 24 to press down the outer circumference of the round cake blank 5.

[0026] The driven roller 32 is at an angle of 120 degrees, and the main roller 24 and the two driven rollers 32 also form angles of 120 degrees.

[0027] The main roller 24 and the driven roller 32 have the same structural design, both of which include a pancake-shaped main body, an annular protrusion 201 is arranged in the middle of the outer circumference of the main body, and annular steps are formed between the axial sides of the annular protrusion 201 and the outer circumference of the main body.

[0028] The left clamping part 41 and the right clamping part 42 are symmetrically designed, and both include a clamping cylinder 401 and a male mold 402 . The male mold 402 is rotatably mounted on the driving end of the clamping cylinder 401 .

[0029] A sleeve 403 is fixedly mounted on the driving end of the clamping cylinder 401, one end of a connecting shaft 404 is mounted in the middle of the rear end of the male mold 402, the other end of the shaft 404 extends into the sleeve 403 and the shaft 404 is rotatably mounted in the sleeve 403 via a bearing.

[0030] The front end of the male mold 402 is designed to be a protrusion 405 that imitates the axial end face shape of a wheel.

[0031] The outer side of the sliding sleeve 403 is slidably mounted on the frame 1 through a fixing sleeve 406 . The fixing sleeve 406 is fixed on the frame 1 , and the sliding sleeve 403 is slidably mounted inside the fixing sleeve 406 .

[0032] A wear ring 407 is installed at both sides of the fixed sleeve 406 , and the sliding sleeve 403 is slidably installed in the wear ring 407 .

[0033] The roller rotation drive mechanism 23 includes a reducer 231, a driving gear 232, a driven gear 233 and a motor 234. The motor 234 and the reducer 231 are respectively installed on the slider 22. The motor 234 drives the reducer 231. The output end of the reducer 231 is installed with a driving gear 232. The driven gear 233 is rotatably installed on the lower end of the slider 22 through a rotating shaft 236. The main roller 24 is fixedly installed on the rotating shaft 236. The driving gear 232 drives the driven gear 233 to mesh.

[0034] The roller rotation driving mechanism 23 further comprises a bridge gear 235 , which is rotatably mounted in the middle of the slider 22 , the driving gear 232 drives the upper surface of the bridge gear 235 to mesh, and the lower surface of the bridge gear 235 drives the driven gear 233 to mesh.

[0035] A U-shaped frame 33 is installed at the front driving end of the driven cylinder 31, and the driven roller 32 is rotatably installed in the U-shaped frame 33. An inclined slide groove 35 is designed on both sides of the lower end of the frame 1. The driven cylinder 31 is inclinedly installed on both sides below the frame 1, and the lower end of the U-shaped frame 33 slides on the inclined slide groove 35.

[0036] The working steps and process of the utility model are as follows:

[0037] 1. The first step is to cut the round steel into pieces (as required) and heat them in a heating furnace to 1250° before leaving the furnace.

[0038] 2. The round cake blank is placed in a 1600T hydraulic press by a robot, and then sent to a 4000T hydraulic press for shaping, and then sent to a roller mill for rolling and forming, and then punched (hoisting hole and middle hole), put on the tail assembly line, measured and put into storage.

[0039] 3. Principle of roller mill:

[0040] Control the round cake blank to enter the roller mill. Since the bottom of the roller mill is composed of two driven rollers at an angle of 120°, the round cake blank can stand upright. At the same time, the two clamping cylinders on the side clamp and support the round cake blank in place and stabilize it, and a certain amount of pressure is added to ensure that the round cake blank will not be extended axially to the left and right when rolling. Next, the upper main roller presses down and the two driven rollers at the bottom form a three-point rolling force toward the center at the same time, acting on the outer circumference of the round cake blank, and through continuous rolling to meet the design size requirements of the drawing. After the main roller and the two driven rollers are in contact with the round cake blank, it is required to control the lifting cylinder and the feeding requirements of the two driven cylinders to feed synchronously. According to the ruler requirements, it will automatically return to the original position when it is in place. The finished product requires the round cake blank size to be processed with a turning amount of 1~2mm. The finished product is clamped out by the last robot, measured, cooled, and stored.

[0041] The implementation scheme of the utility model is a vertical structure, but the utility model can be set to a horizontal structure without exceeding the actual protection structure scope of the utility model and should belong to the protection scope of the utility model.

Claims

1. A high-stability roller mill, characterized in that: It includes a frame, a main forming roller part, a secondary forming roller part, and an axial clamping part. The main forming roller part is installed inside the upper end of the frame. Two groups of secondary forming roller parts are arranged and the two groups are respectively installed inside the frame near the front and rear sides of the lower end. The axial clamping part includes a left clamping part and a right clamping part. The left clamping part and the right clamping part are respectively installed inside the frame near the left and right sides of the lower end. The main forming roller part includes a lifting cylinder, a slider, a roller rotation drive mechanism, and a main roller. The lifting cylinder is designed in two groups and is respectively installed on both sides of the upper end of the frame. The lower end driving ends of the two groups of lifting cylinders respectively drive the two sides of the upper end of the slider. The roller rotation drive mechanism is installed on the slider In the middle position of the end, the lower end of the roller rotation driving mechanism passes through the slider and drives the main roller; the two groups of slave forming roller parts respectively include a driven oil cylinder and a driven roller, the two driven oil cylinders are respectively installed at the two sides of the lower end of the frame, and the front ends of the two driven oil cylinders are respectively lifted upward, and the front end driving ends of the two driven oil cylinders are respectively rotatably installed with a driven roller, so that the two driven rollers are matched at a certain angle; the two driven rollers are respectively supported on both sides of the outer circumferential surface of the round cake blank, and the left clamping part and the right clamping part axially clamp the round cake blank from both sides; the lifting cylinder controls the slider to descend and drives the main roller to press down on the outer circumferential surface of the round cake blank.

2. A high-stability roller mill according to claim 1, characterized in that: The driven roller forms a certain angle of 120 degrees, and the main roller and the two driven rollers also form angles of 120 degrees.

3. A high-stability roller mill according to claim 1, characterized in that: The main roller and the driven roller have the same structural design, both comprising a pancake-shaped main body, an annular protrusion is arranged in the middle of the outer circumference of the main body, and annular steps are formed between the axial sides of the annular protrusion and the outer circumference of the main body.

4. A high-stability roller mill according to claim 1, characterized in that: The left clamping part and the right clamping part are symmetrically designed, and both include a clamping oil cylinder and a male mold. The male mold is rotatably mounted on the driving end of the clamping oil cylinder.

5. A high-stability roller mill according to claim 4, characterized in that: A sliding sleeve is fixedly installed on the driving end of the clamping oil cylinder, one end of the connecting shaft is installed in the middle of the rear end of the male mold, the other end of the shaft extends into the interior of the sliding sleeve and the shaft is rotatably installed in the sliding sleeve through a bearing.

6. A high-stability roller mill according to claim 4, characterized in that: The front end of the male mold is designed to be a protrusion that imitates the shape of the axial end face of a wheel.

7. A high-stability roller mill according to claim 5, characterized in that: The outer side of the sliding sleeve is slidably mounted on the frame through a fixing sleeve, the fixing sleeve is fixed on the frame, and the sliding sleeve is slidably mounted inside the fixing sleeve.

8. A high-stability roller mill according to claim 7, characterized in that: A wear ring is respectively installed at two sides of the interior of the fixed sleeve, and the sliding sleeve is slidably installed in the wear ring.

9. A high-stability roller mill according to claim 1, characterized in that: The roller rotation driving mechanism includes a motor, a reducer, a driving gear and a driven gear. The motor and the reducer are respectively installed on the slider. The motor drives the reducer. The output end of the reducer is installed with a driving gear. The driven gear is rotatably installed on the lower end of the slider through a rotating shaft. The main roller is fixedly installed on the rotating shaft, and the driving gear drives the driven gear to mesh. The roller rotation driving mechanism also includes a bridge gear. The bridge gear can be rotatably installed in the middle of the slider. The driving gear drives the upper side of the bridge gear to mesh, and the lower side of the bridge gear drives the driven gear to mesh.

10. A high-stability roller mill according to claim 1, characterized in that: A U-shaped frame is installed at the front driving end of the driven oil cylinder, and the driven roller is rotatably installed in the U-shaped frame. An inclined slide groove is designed on both sides of the lower end of the frame. The driven oil cylinder is inclinedly installed on both sides of the lower part of the frame, and the lower end of the U-shaped frame slides on the inclined slide groove.

Images