Anti-deviation adjustable catch wheel device of chain grate machine

Abstract

The invention discloses an anti-deviation adjustable catch wheel device for a chain grate machine, which comprises a fixed base, a catch wheel assembly, a catch wheel assembly, a catch wheel assembly, a catch wheel assembly and a catch wheel assembly, and is characterized in that the fixed base is mounted on a chain grate machine stand column; the position adjusting mechanism is connected to the fixed base and comprises a sliding assembly capable of moving in the axial direction of the grate bed and a fastener for locking the sliding assembly; the deviation rectifying catch wheel is pivoted to the sliding assembly, and the wheel surface of the deviation rectifying catch wheel is parallel to the side edge of the grate bed; and the fine adjustment driving unit is connected with the fixed base, the fine adjustment driving unit horizontally acts to push the sliding assembly, and the distance between the deviation correction catch wheel and the side edge of the grate bed is adjusted through linear displacement so as to push the deviated grate bed to reset. The distance between the catch wheel and the grate bed can be accurately controlled, timely intervention can be achieved during slight deviation, forced resetting can be achieved during serious deviation, the faults such as scraping between the grate bed and the supporting wheel and chain link breakage are effectively prevented, the shutdown risk is reduced, the operation stability of equipment is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of pellet chain grates, in particular to an adjustable blocking wheel device for preventing the chain grate from deviation. Background Art

[0002] Chain grates are key equipment in pellet production. Their grate beds, composed of hundreds of chain links connected in series, carry materials in high-temperature environments and complete drying and preheating processes. Due to long-term exposure to high temperatures, material impact, and inherent friction during operation, the chain links are prone to uneven wear and stretching, resulting in differences in link length on both sides, which can cause grate bed deviation.

[0003] In the prior art, the deviation adjustment of chain grate machines mainly relies on the counterweight structure of the tail tensioning device. This structure achieves fine-tuning by sliding the bearing seats on both sides along the slide rail. However, due to the limited travel design of the slide rail, the allowable misalignment of the bearing seats on both sides is usually only about 150mm. When the difference in the elongation of the chain links on both sides exceeds this range, the counterweight device can no longer adjust. At the same time, the side wheels on both sides of the grate bed only serve as limiters and cannot actively intervene in the deviation trend. As a result, the grate bed is prone to serious deviation to one side, causing problems such as scraping between the grate plate and the support wheel, chain link breakage, and even equipment downtime, seriously affecting production continuity and increasing maintenance costs. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an adjustable wheel blocking device for preventing a chain grate from running off, so as to solve the problems raised by the above-mentioned background technology.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an adjustable wheel blocking device for preventing a chain grate from running off, comprising:

[0006] A fixed base, the fixed base being mounted on a chain grate column;

[0007] A position adjustment mechanism is connected to the fixed base and includes a sliding assembly movable along the axial direction of the grate bed and a fastener for locking the sliding assembly;

[0008] A deviation-correcting stop wheel is pivotally connected to the sliding assembly, and a wheel surface of the deviation-correcting stop wheel is parallel to the side of the grate bed;

[0009] A fine-tuning drive unit is connected to a fixed base. The fine-tuning drive unit pushes the sliding assembly horizontally, and adjusts the distance between the deviation-correcting stop wheel and the side of the grate bed through linear displacement to push the deviated grate bed to reset.

[0010] As a further improvement of the present invention: the fixed base includes a bottom plate, the bottom plate is fixed on the columns on both sides of the chain grate, and at least two waist-shaped holes are provided on the surface of the bottom plate.

[0011] As a further improvement of the present invention: the position adjustment mechanism includes a roller fixing bracket, and the roller fixing bracket is slidably connected to the bottom plate by bolts passing through the waist-shaped hole, so that the roller fixing bracket can move axially along the grate bed.

[0012] As a further improvement of the present invention: the deviation-correcting blocking wheel is installed on the end of the roller fixing bracket through a bearing.

[0013] As a further improvement of the present invention: the fine-tuning drive unit includes an adjusting screw, which is horizontally screwed into the threaded hole of the base plate. The front end of the adjusting screw pushes the side of the roller fixing bracket, and the bracket is driven to move laterally by screwing the adjusting screw in or out.

[0014] As a further improvement of the present invention: the length direction of the waist-shaped hole is parallel to the running direction of the grate bed, the number of the waist-shaped holes is four, and the roller fixing bracket is locked and fixed to the waist-shaped holes by four groups of bolt assemblies.

[0015] As a further improvement of the present invention: the length of the waist-shaped hole is 100-150 mm.

[0016] As a further improvement of the present invention, a pressure sensor is further included, which is embedded in the axle of the correcting stop wheel and is used to monitor the contact pressure between the correcting stop wheel and the grate bed in real time.

[0017] As a further improvement of the present invention, it further comprises fixing screws, which vertically penetrate the base plate and are screwed into the preset screw holes of the columns to press and fix the base plate to the surface of the columns.

[0018] As a further improvement of the present invention: the deviation-correcting blocking wheel is a double-row roller structure, and the double-row roller structure includes two wheel bodies arranged in parallel.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention can achieve rapid and uniform cooling of blast furnace molten iron samples, improve cooling efficiency and safety, introduce 0.5-0.7MPa compressed air through the two-way airflow channel of the cylindrical body to form a counter-flow airflow field, and cool the 1400±50℃ molten iron sample to below 50℃ within 120 seconds at a speed of 15-20m / s, and the temperature difference between the core and the surface is ≤50℃, meeting the needs of rapid detection. The grille protective door and safety lock ensure safe operation, the annular groove fixes the sample to ensure cooling uniformity, and the pressure relief valve prevents overpressure risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structural implementation of the present invention;

[0022] Figure 2It is a structural schematic diagram of the present invention;

[0023] Figure numerals: 1, column, 2, base plate, 3, roller fixing bracket, 4, fixing screw, 5, deviation correction wheel, 6, adjusting screw, 7, grate bed. DETAILED DESCRIPTION

[0024] In order to enable a clear and complete understanding of the technical solution, the present invention is further described in conjunction with the embodiments and drawings. Obviously, the described embodiments are only some embodiments of the present invention, and all other embodiments obtained by technical personnel in the relevant field without making creative work are within the scope of protection of the present invention.

[0025] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0026] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in the specification and appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0027] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0028] An embodiment of the present invention provides an adjustable wheel blocking device for preventing a chain grate from running off the track, comprising:

[0029] A fixed base, the fixed base being mounted on the chain grate column 1;

[0030] A position adjustment mechanism, connected to the fixed base, comprising a sliding assembly movable along the axial direction of the grate bed 7 and a fastener for locking the sliding assembly;

[0031] The deflection correcting wheel 5 is pivotally connected to the sliding assembly, and the wheel surface of the deflection correcting wheel 5 is parallel to the side of the grate bed 7;

[0032] The fine-tuning drive unit is connected to the fixed base. The fine-tuning drive unit pushes the sliding assembly horizontally, and adjusts the distance between the deviation-correcting stop wheel 5 and the side of the grate bed 7 through linear displacement to push the deviated grate bed 7 to reset.

[0033] The adjustable stop wheel device for preventing the chain grate from running away in the present application mainly adopts a fixed base, a position adjustment mechanism, a correction stop wheel 5 and a fine-tuning drive unit, among which the fixed base provides stable support for the overall structure to ensure the installation reliability of the device in high temperature and vibration environments; the position adjustment mechanism can realize a large range of position adjustment of the correction stop wheel 5 through the axial movement of the sliding component and the locking of the fasteners, adapting to different degrees of chain link wear; the correction stop wheel 5 is parallel to the side of the grate bed 7 and can be evenly stressed during pushing, avoiding local friction that aggravates equipment loss; the fine-tuning drive unit realizes linear displacement adjustment through horizontal pushing, and can accurately control the distance between the stop wheel and the grate bed 7. It can intervene in time when there is a slight deviation, and can force it to reset when there is a serious deviation, effectively preventing the grate bed 7 from scratching with the support wheel, chain link breakage and other faults, reducing the risk of downtime, and improving the equipment operation stability and service life.

[0034] In one embodiment of the present invention, the fixed base includes a bottom plate 2, which is fixed to the columns 1 on both sides of the chain grate, and at least two waist-shaped holes are provided on the surface of the bottom plate 2.

[0035] In this embodiment, the base plate 2 is fixed to the columns 1 on both sides of the chain grate to ensure structural stability in the presence of vibration and high temperatures. At least two waist-shaped holes are provided on the surface of the base plate 2 to guide the position adjustment of the sliding assembly, allowing the sliding assembly to move smoothly along the waist-shaped holes to adapt to the varying degrees of grate bed 7 deviation.

[0036] In one embodiment of the present invention, the position adjustment mechanism includes a roller fixing bracket 3, which is slidably connected to the base plate 2 via bolts extending through the waist-shaped holes, allowing the roller fixing bracket 3 to move axially along the grate bed 7. The roller fixing bracket 3 is slidably connected to the base plate 2 via bolts extending through the waist-shaped holes, allowing the bracket to move smoothly axially along the grate bed 7, achieving a wide range of position adjustment for the deviation-correcting wheel 5 to accommodate varying degrees of chain link wear and deviation. The combination of the bolts and the waist-shaped holes not only provides guidance for bracket movement, but also allows the bracket to be quickly locked in position by tightening the bolts, preventing displacement and loosening due to equipment vibration after adjustment.

[0037] In one embodiment of the present invention, the deflection-correcting stop wheel 5 is mounted to the end of the roller mounting bracket 3 via a bearing. This mounting of the deflection-correcting stop wheel 5 to the end of the roller mounting bracket 3 enhances the wheel's rotational flexibility and service life. The bearing converts sliding friction between the deflection-correcting stop wheel 5 and the bracket into rolling friction, reducing frictional resistance and wear rate at the contact point between the two. This ensures that the stop wheel rotates smoothly and synchronously with the grate bed 7 when pushing against the deflected grate bed 7, preventing excessive wear on the sides of the grate bed 7 or the stop wheel itself due to frictional jamming.

[0038] In one embodiment of the present invention, the fine-tuning drive unit includes an adjustment screw 6 that is screwed horizontally into a threaded hole in the base plate 2. The front end of the adjustment screw 6 pushes against the side of the roller fixing bracket 3, and the bracket is driven to move laterally by screwing the adjustment screw 6 in or out. The adjustment screw 6 is screwed horizontally into the threaded hole in the base plate 2 and pushes against the side of the roller fixing bracket 3. The spiral motion of screwing in / out is converted into lateral linear displacement of the bracket, allowing millimeter-level fine-tuning of the spacing between the correcting wheel 5 and the grate bed 7, meeting the requirements of refined adjustment for different degrees of deviation.

[0039] In one embodiment of the present invention, the length of the waist-shaped holes is parallel to the direction of travel of the grate bed 7. There are four waist-shaped holes, and the roller fixing bracket 3 is locked and fixed to the waist-shaped holes by four sets of bolt assemblies. The length of the waist-shaped holes is parallel to the direction of travel of the grate bed 7, and the provision of four waist-shaped holes and the locking and fixing of the roller fixing bracket 3 by four sets of bolt assemblies can improve the adjustable adaptability and structural stability of the device. The adaptive design of the waist-shaped holes in the length direction allows the roller fixing bracket 3 to be precisely adjusted along the direction of travel of the grate bed 7, adapting to the needs of deviation correction in different areas.

[0040] In one embodiment of the present invention, the length of the waist-shaped hole is 100-150 mm.

[0041] In one embodiment of the present invention, a pressure sensor is further included, embedded within the axle of the correcting stop wheel 5, for real-time monitoring of the contact pressure between the correcting stop wheel 5 and the grate bed 7. The pressure sensor, embedded within the axle of the correcting stop wheel 5, monitors the contact pressure between the stop wheel and the grate bed 7 in real time, providing accurate data support for adjustment operations. When the pressure rises abnormally, it can provide timely feedback indicating that the grate bed 7 is deviating more or that the stop wheel is over-adjusted, thus avoiding deformation of the grate bed 7 or damage to the chain links due to excessive resistance. When the pressure is too low or disappears, it can indicate that the stop wheel and grate bed 7 are out of contact and need to be readjusted to restore the correcting capability.

[0042] In one embodiment of the present invention, a fixing screw 4 is further included. The fixing screw 4 vertically penetrates the base plate 2 and is screwed into a preset screw hole of the column 1 to press and fix the base plate 2 to the surface of the column 1.

[0043] In one embodiment of the present invention, the deflection-correcting stop wheel 5 is a double-row roller structure comprising two parallel wheels. This double-row roller structure improves the stability and force balance between the stop wheel and the grate bed 7. The two parallel wheels simultaneously contact the sides of the grate bed 7, distributing the thrust pressure and preventing wear on the sides of the grate bed 7 or deformation of the stop wheel caused by localized stress concentration when a single wheel is in contact.

[0044] In summary, after reading the present invention document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical solutions and technical concepts of the present invention without creative mental work, and all of them fall within the scope of protection of the present invention.

Claims

1. An adjustable wheel stop device for preventing chain grate from running off, characterized in that: include: A fixed base, the fixed base being mounted on a chain grate column; A position adjustment mechanism is connected to the fixed base and includes a sliding assembly movable along the axial direction of the grate bed and a fastener for locking the sliding assembly; A deviation-correcting stop wheel is pivotally connected to the sliding assembly, and a wheel surface of the deviation-correcting stop wheel is parallel to the side of the grate bed; A fine-tuning drive unit is connected to a fixed base. The fine-tuning drive unit pushes the sliding assembly horizontally, and adjusts the distance between the deviation-correcting stop wheel and the side of the grate bed through linear displacement to push the deviated grate bed to reset.

2. The adjustable wheel blocking device for preventing chain grate from deviation according to claim 1 is characterized in that: The fixed base comprises a bottom plate, which is fixed on the columns on both sides of the chain grate, and at least two waist-shaped holes are provided on the surface of the bottom plate.

3. The adjustable wheel blocking device for preventing the chain grate from running off as claimed in claim 2 is characterized in that: The position adjustment mechanism includes a roller fixing bracket, which is slidably connected to the bottom plate through bolts passing through the waist-shaped holes, so that the roller fixing bracket can move axially along the grate bed.

4. The adjustable wheel blocking device for preventing chain grate from deviation according to claim 3 is characterized in that: The deviation correcting blocking wheel is installed on the end of the roller fixing bracket through a bearing.

5. The adjustable wheel blocking device for preventing chain grate from deviation according to claim 4 is characterized in that: The fine-tuning drive unit includes an adjusting screw, which is screwed horizontally into the threaded hole of the base plate. The front end of the adjusting screw pushes the side of the roller fixing bracket, and the bracket is driven to move horizontally by screwing the adjusting screw in or out.

6. The adjustable wheel blocking device for preventing chain grate from deviation according to claim 5 is characterized in that: The length direction of the waist-shaped hole is parallel to the running direction of the grate bed. There are four waist-shaped holes. The roller fixing bracket is locked and fixed to the waist-shaped holes through four groups of bolt assemblies.

7. The adjustable wheel blocking device for preventing chain grate from deviation according to claim 2 is characterized in that: The length of the waist-shaped hole is 100-150 mm.

8. The adjustable wheel blocking device for preventing chain grate from deviation according to claim 1 is characterized in that: It also includes a pressure sensor, which is embedded in the wheel shaft of the correcting stop wheel and is used to monitor the contact pressure between the correcting stop wheel and the grate bed in real time.

9. The adjustable wheel blocking device for preventing chain grate from deviation according to claim 1 is characterized in that: It also includes fixing screws, which vertically penetrate the bottom plate and are screwed into the preset screw holes of the columns to press and fix the bottom plate to the surface of the columns.

10. The adjustable wheel blocking device for preventing chain grate from deviation according to claim 4, characterized in that: The deviation-correcting blocking wheel is a double-row roller structure, and the double-row roller structure includes two wheel bodies arranged in parallel.

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