Railway box girder formwork wheel disc type polishing tool

Abstract

The utility model discloses a wheel disc type grinding tool for a railway box girder formwork, and relates to the technical field of railway box girder formwork machining. The top beam frame is matched with a top plate of a box girder formwork in shape, and the bottom supporting frame is matched with a bottom formwork and side formworks of the box girder formwork in shape and detachably connected with the top beam frame. The longitudinal rail mechanisms are arranged at the two ends of the top beam frame. The multiple sets of wheel disc type grinding units are installed at the bottom of the top beam frame and the side wall and the bottom of the bottom supporting frame correspondingly and used for grinding a top plate, side formworks and a bottom formwork of the box beam formwork. The height-adjustable supporting mechanism is arranged in the circumferential direction of the bottom of the bottom supporting frame. One-time clamping full-coverage automatic grinding of the box girder formwork polyhedron is achieved, the grinding uniformity and efficiency are improved, meanwhile, the height-adjustable supporting mechanism prevents the grinding head of the wheel disc type grinding unit from being abraded when equipment is idle, and the problems of quality fluctuation, low efficiency and high cost caused by manual multi-time grinding are solved.

Description

Technical Field

[0001] The present application relates to the technical field of railway box girder formwork processing, and in particular to a wheel-disc grinding tool for railway box girder formwork. Background Art

[0002] Railway box girders are widely used as concrete beam structures in railway bridge construction due to their light weight, high strength, and excellent bending resistance. As specialized prefabrication molds, the quality and design of railway box girder formwork play a decisive role in the dimensional accuracy, surface quality, and overall performance of the railway box girder. Therefore, during production, railway box girder formwork must be polished to meet these exceptional precision requirements.

[0003] Currently, the grinding of railway box girder formwork still largely relies on manual labor. For example, for a 32-meter-long, 540-square-meter railway box girder formwork, a typical grinding process would require a team of 10 using handheld electric angle grinders for 3.5 hours. This manual grinding method is extremely inefficient and cannot meet the construction schedule requirements of large-scale railway construction. Utility Model Content

[0004] The embodiments of the present application solve the problems raised in the background technology by providing a wheel-disc grinding tool for railway box girder templates.

[0005] The embodiment of the present application provides a wheel-disc grinding tool for railway box girder templates, comprising a top beam frame, a bottom support frame, a longitudinal track mechanism, a height-adjustable support mechanism, and a plurality of wheel-disc grinding units; the top beam frame is adapted to the shape of the top plate of the box girder template, the bottom support frame is adapted to the shape of the bottom mold and side mold of the box girder template, and is detachably connected to the top beam frame; the longitudinal track mechanism is arranged at both ends of the top beam frame for sliding along the longitudinal track of the top plate of the box girder template; a plurality of wheel-disc grinding units are provided. They are respectively installed on the bottom of the top beam frame, the side wall and the bottom of the bottom support frame, and are used for grinding the top plate, side form and bottom form of the box beam formwork; the height-adjustable support mechanism is arranged on the bottom circumference of the bottom support frame; wherein, when in the working state, the support height of the height-adjustable support mechanism makes the disc-type grinding unit located at the bottom of the bottom support frame abut against the grinding surface of the bottom form; when in the non-working state, the height-adjustable support mechanism lifts the bottom support frame so that the disc-type grinding unit located at its bottom is suspended in the air.

[0006] In a possible implementation, the railway box girder formwork wheel-type grinding tool also includes multiple first flanges, multiple second flanges and multiple fastening bolts; multiple first flanges are respectively arranged on the bottom circumference of the top beam frame; multiple second flanges are respectively arranged on the top circumference of the bottom support frame; multiple fastening bolts are used to connect the corresponding first flanges and second flanges to achieve a detachable connection between the top beam frame and the bottom support frame.

[0007] In one possible implementation, the wheel-type grinding unit includes a drive motor, a transmission mechanism, a reducer, a plurality of rotating grinding rods and a plurality of grinding wire brushes; the drive motor is installed at the bottom of the top beam frame, the side wall and the bottom of the bottom support frame; the output end of the drive motor is connected to the input end of the reducer through the transmission mechanism; the plurality of rotating grinding rods are arranged circumferentially along the output end of the reducer; and the plurality of grinding wire brushes are detachably connected to the corresponding rotating grinding rods.

[0008] In a possible implementation, the wheel-type grinding unit also includes multiple motor housings; the multiple motor housings are respectively installed on the bottom of the top beam frame, the side wall and the bottom of the bottom support frame; and the multiple drive motors are installed in the corresponding motor housings.

[0009] In one possible implementation, the transmission mechanism includes a driving wheel, a transmission belt and a driven wheel; the driving wheel is arranged at the output end of the drive motor; the driven wheel is arranged at the input end of the reducer; and the transmission belt is sleeved on the driving wheel and the driven wheel.

[0010] In a possible implementation, the wheel-type grinding unit further includes a plurality of protective covers; the plurality of protective covers are fixedly disposed on the motor housing; the rotating grinding rod is located within the protective cover, and the grinding wire brush partially extends out of the protective cover.

[0011] In one possible implementation, the height-adjustable support mechanism includes a sleeve, a support rod and a locking pin; the sleeve is fixedly arranged in the circumference of the bottom of the bottom support frame; the support rod is slidably arranged in the sleeve, and a plurality of first through holes are arranged along its height; the sleeve is provided with a second through hole corresponding to the first through hole; the locking pin passes through the second through hole and the corresponding first through hole to fix the support height.

[0012] In a possible implementation, the height-adjustable support mechanism further includes a plurality of support plates; the plurality of support plates are respectively disposed at the bottoms of the corresponding support rods.

[0013] In a possible implementation, the railway box girder template wheel-disc grinding tool further includes a power distribution control box; the power distribution control box is arranged in the middle of the bottom support frame and is electrically connected to the plurality of drive motors.

[0014] One or more technical solutions provided in the embodiments of this application have at least the following technical effects:

[0015] The embodiment of the present application switches the working state by lifting and lowering the height-adjustable support mechanism. When working, the height-adjustable support mechanism descends so that the disc-type grinding unit located at the bottom of the bottom support frame abuts against the bottom mold grinding surface. At the same time, the top beam frame slides along the longitudinal track of the box beam template, driving each disc-type grinding unit to synchronously perform disc-type grinding on the top plate, side mold and bottom mold. When not working, the height-adjustable support mechanism lifts the bottom support frame so that the disc-type grinding unit is suspended and out of contact. The present application realizes one-time clamping and full-coverage automated grinding of the box beam template polyhedron, improving grinding uniformity and efficiency. At the same time, the height-adjustable support mechanism prevents wear of the grinding head of the disc-type grinding unit when the equipment is idle, solving the problems of quality fluctuation, low efficiency and high cost caused by manual multi-step grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A schematic diagram of the structure of a wheel-type grinding tool for railway box girder templates provided in an embodiment of the present application;

[0018] Figure 2 for Figure 1 The main view;

[0019] Figure 3 This is a schematic structural diagram of the disc-type grinding unit provided in an embodiment of the present application.

[0020] Icons: 1-top beam frame; 11-top grinding beam; 12-top support; 13-first reinforcement rod; 14-second reinforcement rod; 2-bottom support frame; 21-support beam; 3-longitudinal track mechanism; 4-height-adjustable support mechanism; 41-sleeve; 42-support rod; 43-locking pin; 44-support plate; 5-wheel-disc grinding unit; 51-reinforcement member; 52-transmission mechanism; 521-transmission belt; 522-driven wheel; 53-reducer; 54-rotating grinding rod; 55-motor housing; 56-protective cover; 6-first flange; 7-second flange; 8-distribution control box; 9-inspection door. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0022] In the description of the embodiments of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present application. The terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0023] The embodiment of the present application provides a railway box girder template wheel type grinding tool, such as Figures 1 to 3 As shown, the railway box girder formwork wheel-disc grinding tooling includes a top beam frame 1, a bottom support frame 2, a longitudinal track mechanism 3, a height-adjustable support mechanism 4, and a plurality of wheel-disc grinding units 5. The top beam frame 1 is adapted to the shape of the top plate of the box girder formwork, the bottom support frame 2 is adapted to the shape of the bottom formwork and side formwork of the box girder formwork, and is detachably connected to the top beam frame 1. The longitudinal track mechanism 3 is provided at both ends of the top beam frame 1, and is used to slide along the longitudinal track of the top plate of the box girder formwork. Specifically, a track wheel is provided at the bottom of the longitudinal track mechanism 3, and the track wheel is slidably connected to the longitudinal track of the top plate of the box girder formwork.

[0024] Multiple sets of disc-type grinding units 5 are mounted on the bottom of the top beam frame 1 and the sidewalls and bottom of the bottom support frame 2, respectively, for grinding the top plate, side formwork, and bottom formwork of the box beam formwork. A height-adjustable support mechanism 4 is provided around the bottom of the bottom support frame 2. When in operation, the height of the height-adjustable support mechanism 4 ensures that the disc-type grinding units 5 located at the bottom of the bottom support frame 2 abut the grinding surface of the bottom formwork. When not in operation, the height-adjustable support mechanism 4 elevates the bottom support frame 2, leaving the disc-type grinding units 5 at its bottom suspended in the air.

[0025] It should be noted that the grinding tool switches its working state by lifting and lowering the height-adjustable support mechanism 4. When working, the height-adjustable support mechanism 4 descends so that the disc-type grinding unit 5 located at the bottom of the bottom support frame 2 abuts against the bottom mold grinding surface. At the same time, the top beam frame 1 slides along the longitudinal track of the box beam template, driving each disc-type grinding unit 5 to synchronously perform disc-type grinding on the top plate, side mold and bottom mold. When not working, the height-adjustable support mechanism 4 lifts the bottom support frame 2 so that the disc-type grinding unit 5 is suspended and out of contact. This design realizes the one-time clamping and full-coverage automated grinding of the box beam template polyhedron, improving the grinding uniformity and efficiency. At the same time, the height-adjustable support mechanism 4 avoids the wear of the grinding head of the disc-type grinding unit 5 when the equipment is idle, solving the quality fluctuation, low efficiency and high cost problems caused by manual multi-step grinding. The entire tool has a simple structure, low preparation cost and strong practicality.

[0026] Furthermore, the top beam frame 1 includes a top polishing beam 11, a top support 12, a plurality of first reinforcing rods 13, and a plurality of second reinforcing rods 14. The contour of the top polishing beam 11 is adapted to the shape of the top plate of the box beam formwork; the top support 12 is fixedly arranged on the upper surface of the top polishing beam 11, and its length is greater than the length of the top polishing beam 11; a plurality of first reinforcing rods 13 are arranged at intervals along the length direction of the top polishing beam 11 and are fixedly connected thereto; a plurality of second reinforcing rods 14 are arranged at intervals along the length direction of the top support 12 and are fixedly connected thereto; the longitudinal track mechanism 3 is symmetrically installed at both ends of the bottom of the top support 12, and is used to slide along the longitudinal track of the box beam formwork. This structure enables the top polishing beam 11 to precisely fit the top plate of the box beam formwork, ensuring polishing adaptability; the top support 12, the second reinforcing rods 14, and the first reinforcing rods 13 enhance overall strength and stability; the longitudinal track mechanism 3 enables flexible movement along the longitudinal direction of the box beam formwork, improving the efficiency and uniformity of the polishing operation.

[0027] In this embodiment of the present application, the wheel-type grinding tool for railway box girder formwork further includes a plurality of first flanges 6, a plurality of second flanges 7, and a plurality of fastening bolts. The plurality of first flanges 6 are disposed circumferentially around the bottom of the top beam frame 1. The plurality of second flanges 7 are disposed circumferentially around the top of the bottom support frame 2. The plurality of fastening bolts are used to connect the corresponding first flanges 6 and second flanges 7, thereby achieving a removable connection between the top beam frame 1 and the bottom support frame 2.

[0028] In the embodiment of the present application, the wheel-type grinding unit 5 includes a drive motor, a transmission mechanism 52, a reducer 53, a plurality of rotating grinding rods 54 and a plurality of grinding wire brushes. The bottom of the top beam frame 1 and the side walls and bottom of the bottom support frame 2 are all equipped with a drive motor. The output end of the drive motor is connected to the input end of the reducer 53 through the transmission mechanism 52. The plurality of rotating grinding rods 54 are circumferentially arranged along the output end of the reducer 53. The plurality of grinding wire brushes are detachably connected to the corresponding rotating grinding rods 54. During operation, the longitudinal track mechanism 3 slides along the longitudinal guide rail of the box beam template, and the drive motor drives the rotating grinding rod 54 through the transmission mechanism 52, so that the grinding wire brushes are fully covered and polished.

[0029] In the embodiment of the present application, the wheel-type grinding unit 5 further includes a plurality of motor housings 55. The plurality of motor housings 55 are respectively mounted on the bottom of the top beam frame 1 and the sidewalls and bottom of the bottom support frame 2. A plurality of drive motors are mounted in corresponding motor housings 55.

[0030] In the embodiment of the present application, the transmission mechanism 52 includes a driving wheel, a transmission belt 521, and a driven wheel 522. The driving wheel is arranged at the output end of the drive motor. The driven wheel 522 is arranged at the input end of the speed reducer 53. The transmission belt 521 is sleeved on the driving wheel and the driven wheel 522.

[0031] It should be noted that the drive motor transmits power to the reducer 53 via a transmission mechanism 52 consisting of a driving pulley, a transmission belt 521, and a driven pulley 522. After speed reduction and torque increase, it drives multiple circumferentially distributed rotating grinding rods 54 to rotate synchronously, driving detachable grinding wire brushes to scrape the box girder formwork surface at high speed. The motor housing 55 protects the drive motor. This structure enables multiple grinding wire brushes to work together for powerful grinding. The protective structure balances operational safety and equipment durability, improving the efficiency and consistency of grinding the complex curved surfaces of the box girder formwork. Furthermore, the modularized grinding wire brushes facilitate replacement based on wear and tear, reducing maintenance costs.

[0032] In this embodiment of the present application, the disc-type grinding unit 5 further includes a plurality of protective covers 56. The plurality of protective covers 56 are fixedly mounted on the motor housing 55. The rotating grinding rod 54 is located within the protective covers 56, and the grinding wire brush partially extends out of the protective covers 56. The protective covers 56 are used to enclose and protect the rotating grinding rod 54, preventing damage to the rotating grinding rod 54 during operation.

[0033] Specifically, the protective cover 56 of the present application is provided with an operating window on a side away from the motor housing 55, so that the grinding wire brush can be partially extended for operation.

[0034] Furthermore, a reinforcement member 51 is provided between the output end of the speed reducer 53 , ie, the output shaft, and the rotary polishing rod 54 , for improving the structural stability of the rotary polishing rod 54 .

[0035] In this embodiment of the present application, the height-adjustable support mechanism 4 includes a sleeve 41, a support rod 42, and a locking pin 43. The sleeve 41 is fixedly mounted circumferentially around the bottom of the bottom support frame 2. The support rod 42 slides within the sleeve 41 and has multiple first through-holes defined along its height. The sleeve 41 is provided with second through-holes corresponding to the first through-holes. The locking pin 43 passes through the second through-holes and the corresponding first through-holes to maintain a fixed support height.

[0036] In the embodiment of the present application, the height-adjustable support mechanism 4 further includes a plurality of support plates 44 . The plurality of support plates 44 are respectively disposed at the bottom of the corresponding support rods 42 .

[0037] It should be noted that the present application achieves support height locking by adjusting the lifting and lowering of the sliding support rod 42 in the sleeve 41, in conjunction with the locking pin 43 penetrating the first through-hole at different heights; the support plate 44 increases the contact area with the ground to ensure stability. When in working state, the support rod 42 is adjusted so that the wheel-type grinding unit 5 abuts against the grinding surface of the bottom mold. When not in working state, the support rod 42 is lifted so that the wheel-type grinding unit 5 is completely suspended. This mechanism realizes the rapid switching and reliable fixation of the working height of the equipment, avoids ineffective wear of the grinding head of the wheel-type grinding unit 5 during non-operating periods, and reduces the frequency of manual adjustments and equipment maintenance costs.

[0038] In the embodiment of the present application, the railway box girder formwork wheel-type grinding tool further includes a power distribution control box 8. The power distribution control box 8 is disposed in the middle of the bottom support frame 2 and is electrically connected to multiple drive motors. This layout not only facilitates centralized control of the drive motors, ensuring coordinated and unified operation of the grinding tool and improving the overall level of automated operation, but also facilitates rational cable routing due to its central location, reducing line clutter and potential safety hazards.

[0039] Furthermore, the surface of the distribution box of the present application is provided with an inspection door 9 to facilitate circuit maintenance.

[0040] It should be noted that the bottom support frame 2 is provided with a support beam 21 , and the power distribution control box 8 is installed on the support beam 21 .

[0041] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0042] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A railway box girder template wheel type grinding tool, characterized in that: It comprises a top beam frame (1), a bottom support frame (2), a longitudinal track mechanism (3), a height-adjustable support mechanism (4) and a plurality of wheel-type grinding units (5); The top beam frame (1) is adapted to the shape of the top plate of the box beam template, and the bottom support frame (2) is adapted to the shape of the bottom form and side form of the box beam template, and is detachably connected to the top beam frame (1); The longitudinal track mechanism (3) is arranged at both ends of the top beam frame (1) and is used for sliding along the longitudinal track of the top plate of the box beam template; A plurality of groups of the wheel-type grinding units (5) are respectively installed on the bottom of the top beam frame (1), the side wall and the bottom of the bottom support frame (2), and are used for grinding the top plate, side formwork and bottom formwork of the box beam formwork; The height-adjustable support mechanism (4) is arranged on the bottom circumference of the bottom support frame (2); wherein, in a working state, the support height of the height-adjustable support mechanism (4) enables the wheel-type grinding unit (5) located at the bottom of the bottom support frame (2) to abut against the grinding surface of the bottom mold; in a non-working state, the height-adjustable support mechanism (4) lifts the bottom support frame (2) so that the wheel-type grinding unit (5) located at the bottom thereof is suspended in the air.

2. The railway box girder template wheel-disc grinding tool according to claim 1 is characterized in that: It also includes a plurality of first flanges (6), a plurality of second flanges (7) and a plurality of fastening bolts; A plurality of the first flanges (6) are respectively arranged on the bottom circumference of the top beam frame (1); A plurality of second flanges (7) are respectively arranged on the top circumference of the bottom support frame (2); The plurality of fastening bolts are used to connect the corresponding first flange (6) and the second flange (7), thereby achieving a detachable connection between the top beam frame (1) and the bottom support frame (2).

3. The railway box girder template wheel-disc grinding tool according to claim 1 is characterized in that: The wheel-type grinding unit (5) comprises a driving motor, a transmission mechanism (52), a reducer (53), a plurality of rotating grinding rods (54) and a plurality of grinding wire brushes; The bottom of the top beam frame (1) and the side walls and bottom of the bottom support frame (2) are all equipped with the driving motor; The output end of the driving motor is connected to the input end of the reducer (53) through the transmission mechanism (52); A plurality of rotating grinding rods (54) are arranged circumferentially along the output end of the reducer (53); A plurality of the grinding wire brushes are detachably connected to the corresponding rotating grinding rods (54).

4. The railway box girder template wheel-disc grinding tool according to claim 3 is characterized in that: The wheel-type grinding unit (5) further includes a plurality of motor housings (55); The plurality of motor housings (55) are respectively mounted on the bottom of the top beam frame (1), and the side walls and bottom of the bottom support frame (2); A plurality of the driving motors are installed in the corresponding motor housings (55).

5. The railway box girder template wheel-disc grinding tool according to claim 4, characterized in that: The transmission mechanism (52) includes a driving wheel, a transmission belt (521) and a driven wheel (522); The driving wheel is arranged at the output end of the driving motor; The driven wheel (522) is arranged at the input end of the reducer (53); The transmission belt (521) is sleeved on the driving wheel and the driven wheel (522).

6. The railway box girder template wheel-disc grinding tool according to claim 4, characterized in that: The wheel-type grinding unit (5) further includes a plurality of protective covers (56); A plurality of protective covers (56) are fixedly arranged on the motor housing (55); The rotating grinding rod (54) is located in the protective cover (56), and the grinding wire brush partially extends out of the protective cover (56).

7. The railway box girder template wheel-disc grinding tool according to claim 1, characterized in that: The height-adjustable support mechanism (4) comprises a sleeve (41), a support rod (42) and a locking pin (43); The sleeve (41) is fixedly arranged on the circumference of the bottom of the bottom support frame (2); The support rod (42) is slidably disposed in the sleeve (41), and a plurality of first through holes are provided along the height of the support rod; The sleeve (41) is provided with a second through hole corresponding to the first through hole; The locking pin (43) passes through the second through hole and the corresponding first through hole to fix the support height.

8. The railway box girder template wheel-disc grinding tool according to claim 7, characterized in that: The height-adjustable support mechanism (4) further includes a plurality of support plates (44); The plurality of support plates (44) are respectively arranged at the bottom of the corresponding support rods (42).

9. The railway box girder template wheel-disc grinding tool according to claim 3, characterized in that: Also includes a power distribution control box (8); The power distribution control box (8) is arranged in the middle of the bottom support frame (2) and is electrically connected to the plurality of drive motors.

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