Fixing device and method for solving fan vibration caused by looseness of embedded bolt foundation

Abstract

The invention discloses a fixing device and method for solving fan vibration caused by looseness of an embedded bolt foundation, and relates to the technical field of blast furnace dust removal. The fixing device comprises a base, a fan bearing seat, a portal frame and a telescopic limiting piece, and the base is used for being fixedly connected with a concrete foundation through embedded foundation bolts; the fan bearing seat is detachably and fixedly connected to the top of the base, and the fan bearing seat is used for being connected with a blast furnace dust removal fan so as to fix the blast furnace dust removal fan; the bottom of the portal frame is fixedly connected with a concrete foundation; the top end of the telescopic limiting piece is used for being fixedly connected with the portal frame, the bottom end of the telescopic limiting piece is used for abutting against the loose pre-embedded foundation bolt on the base, the top of the loose pre-embedded foundation bolt can be wrapped and fixed, the structure is simple, use is convenient, and vibration of the blast furnace dust removal fan is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of blast furnace dust removal, and in particular to a fixing device and a method for solving the problem of fan vibration caused by loosening of a pre-embedded bolt foundation. Background Art

[0002] Large mechanical equipment is usually fixed with anchor bolts, one end of which is fixed in the concrete and the other end is fixed with screws to the structural member or mechanical equipment.

[0003] The blast furnace dust removal fan is placed outdoors and is subject to fan vibration, environmental corrosion, the weight of the fan itself, and various external forces acting on the fan connection base. These external forces cause the fan bearing base to produce upward and downward pressure, as well as lateral external forces, resulting in bending of the anchor bolts, damage to the thread ends, or excessive position deviation. During routine maintenance, the inspection personnel found that an anchor bolt of the fan connection base was loose, which would cause the fan to vibrate irregularly and with a large amplitude, which could seriously cause accidents and affect personal safety. Therefore, a device and method are needed to stably fix the blast furnace dust removal fan to avoid vibration after an anchor bolt is loosened. Summary of the invention

[0004] The purpose of the present invention is to provide a fixing device and method for solving the problem of fan vibration caused by loosening of embedded bolt foundation, so as to solve the problems existing in the above-mentioned prior art. The device has a simple structure, is easy to use, and can effectively avoid vibration of blast furnace dust removal fans.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a fixing device for solving the problem of fan vibration caused by loosening of embedded bolt foundation, comprising: a base, a fan bearing seat, a gantry and a telescopic limiter, wherein the base is used to be fixedly connected to a concrete foundation through embedded anchor bolts; the fan bearing seat can be detachably fixedly connected to the top of the base, and the fan bearing seat is used to be connected to a blast furnace dust removal fan to fix the blast furnace dust removal fan; the bottom of the gantry is used for fixed connection to the concrete foundation; the top of the telescopic limiter is used for fixed connection to the gantry, and the bottom end of the telescopic limiter is used to tighten the position of the loose embedded anchor bolts on the base, and can wrap and fix the loose top of the embedded anchor bolts.

[0007] Preferably, it also includes a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are respectively fixedly connected to both sides of the concrete foundation, the gantry includes a first support column, a second support column and a crossbeam, the two ends of the crossbeam are respectively fixedly connected to the top ends of the first support column and the second support column, the bottom end of the first support column is used for welding and fixing to the first fixing plate, the bottom end of the second support column is used for welding and fixing to the second fixing plate, and the top of the telescopic limit member is used for welding and fixing to the crossbeam.

[0008] Preferably, the telescopic limit member includes a connecting rod, an abutment plate and a jack, the top end of the connecting rod is used to be fixedly connected to the cross beam, the abutment plate is used to be fixedly connected to the bottom end of the connecting rod, the top end of the jack is used for abutment connection with the abutment plate, and the bottom end of the jack is used to wrap and fix with the top of the loose embedded anchor bolt.

[0009] Preferably, a limiting hole is provided at the bottom of the jack, and the limiting hole is used to be sleeved and fixed on the outer side of the top of the loose embedded anchor bolt.

[0010] Preferably, it also includes a plurality of fasteners, each of which is arranged along the circumference of the fan bearing seat, one end of the fastener is used to connect with the base, and the other end is used to connect with the fan bearing seat to limit the movement or rotation of the fan bearing seat.

[0011] Preferably, the fastener includes a nut and a fixing bolt, the nut is used to be fixedly connected to the base, a plurality of positioning holes are circumferentially arranged on the fan bearing seat, and the fixing bolt is used to be threadedly connected to the nut and one end of the fixing bolt passes through the nut and is inserted into the positioning hole.

[0012] Preferably, the number of the fasteners is eight.

[0013] The present invention also provides a method for using the fixing device for solving the problem of fan vibration caused by loosening of the embedded bolt foundation according to any one of the above items, comprising the following steps:

[0014] During routine maintenance, the inspection personnel found that an anchor bolt connecting the fan to the base was loose, so they fixed the gantry to the concrete foundation and fixed it to the gantry through the top of the telescopic limiter. The bottom end of the telescopic limiter pressed against the loose embedded anchor bolt on the base and was able to wrap and fix the top of the loose embedded anchor bolt.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] The present invention provides a fixing device and method for solving the problem of fan vibration caused by loose embedded bolt foundation. During daily maintenance, the inspection personnel find that an anchor bolt connecting the fan to the base is loose, so the gantry is fixedly connected to the concrete foundation, and the top of the telescopic limiter is fixedly connected to the gantry, and the bottom end of the telescopic limiter is pressed against the position of the loose embedded anchor bolt on the base, and the top of the loose embedded anchor bolt can be wrapped and fixed. The structure is simple, easy to use, and the vibration of the blast furnace dust removal fan can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a fixing device provided by the present invention for solving the problem of fan vibration caused by loosening of the embedded bolt foundation;

[0019] Figure 2 A top view of a fan bearing seat in a fixing device for solving the problem of fan vibration caused by loosening of the embedded bolt foundation provided by the present invention;

[0020] In the figure: 1. first fixed plate; 2. gantry; 3. concrete foundation; 4. jack; 5. connecting rod; 6. fixing bolts; 7. nuts; 8. fan bearing seat; 9. loose embedded anchor bolts; 10. base. DETAILED DESCRIPTION

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

[0022] The purpose of the present invention is to provide a fixing device and method for solving the problem of fan vibration caused by loosening of embedded bolt foundation, so as to solve the problems existing in the above-mentioned prior art. The device has a simple structure, is easy to use, and can effectively avoid vibration of blast furnace dust removal fans.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Embodiment 1

[0025] The present invention provides a fixing device for solving the problem of fan vibration caused by loosening of the embedded bolt foundation. Figure 1 As shown, it includes: a base 10, a fan bearing seat 8, a gantry 2 and a telescopic stopper, the base 10 is used to be fixedly connected to the concrete foundation 3 through embedded anchor bolts; the fan bearing seat 8 can be detachably fixedly connected to the top of the base 10, and the fan bearing seat 8 is used to connect with the blast furnace dust removal fan to fix the blast furnace dust removal fan; the bottom of the gantry 2 is used for fixed connection with the concrete foundation 3; the top of the telescopic stopper is used to be fixedly connected to the gantry 2, and the bottom of the telescopic stopper is used to tighten the position of the loose embedded anchor bolt 9 on the base 10, and can wrap and fix the top of the loose embedded anchor bolt 9. By setting the base 10, the fan bearing seat 8, the gantry 2 and the telescopic stopper, the loose embedded anchor bolt 9 can be effectively fixed, thereby solving the fan vibration problem caused by the loose embedded bolt foundation. The connection between the base 10 and the concrete foundation 3 and the connection between the fan bearing seat 8 and the blast furnace dust removal fan ensure the stability of the entire device. The telescopic limiter can be adjusted according to the actual situation to adapt to different degrees of looseness of the anchor bolts.

[0026] In a preferred solution of the present embodiment, a first fixing plate 1 and a second fixing plate are further included, and the first fixing plate 1 and the second fixing plate are fixedly connected to the two sides of the concrete foundation 3, respectively. The gantry 2 includes a first support column, a second support column and a crossbeam, and the two ends of the crossbeam are fixedly connected to the top ends of the first support column and the second support column, respectively. The bottom end of the first support column is used for welding and fixing with the first fixing plate 1, and the bottom end of the second support column is used for welding and fixing with the second fixing plate. The top of the telescopic limiter is used for welding and fixing with the crossbeam. The first fixing plate 1 and the second fixing plate are provided to provide a more stable fixing foundation for the gantry 2. The welding and fixing of the first and second support columns of the gantry 2 to the first and second fixing plates, and the welding and fixing of the telescopic limiter to the crossbeam, enhance the structural strength of the entire device and improve the fixing effect of loose anchor bolts.

[0027] In a preferred solution of the present embodiment, the telescopic limiter includes a connecting rod 5, an abutment plate and a jack 4. The top of the connecting rod 5 is used to be fixedly connected to the crossbeam, the abutment plate is used to be fixedly connected to the bottom of the connecting rod 5, the top of the jack 4 is used to abut the abutment plate, and the bottom of the jack 4 is used to wrap and fix with the top of the loose embedded anchor bolt 9. The telescopic limiter consists of the connecting rod 5, the abutment plate and the jack 4, and has a simple and practical structure. The fixed connection between the connecting rod 5 and the crossbeam and the fixed connection between the abutment plate and the connecting rod 5 ensures the stable support of the jack 4. The jack 4 can exert pressure on the loose anchor bolt by adjusting the height to achieve effective fixation.

[0028] In a preferred solution of the present embodiment, a limiting hole is provided at the bottom of the jack 4, and the limiting hole is used to be mounted and fixed on the outer side of the top of the loose embedded anchor bolt 9. The limiting hole at the bottom of the jack 4 can be accurately mounted on the outer side of the top of the loose embedded anchor bolt 9, ensuring a tight connection between the jack 4 and the anchor bolt, thereby improving the reliability of fixation.

[0029] In a preferred solution of this embodiment, a plurality of fasteners are further included, each fastener being arranged along the circumference of the fan bearing seat 8, one end of the fastener being used to connect with the base 10, and the other end being used to connect with the fan bearing seat 8 to limit the movement or rotation of the fan bearing seat 8. The arrangement of a plurality of fasteners can effectively limit the movement or rotation of the fan bearing seat 8, thereby further enhancing the stability of the fan. The fasteners arranged along the circumference of the fan bearing seat 8 can fix the fan bearing seat 8 from multiple directions, thereby improving the fixing effect.

[0030] In a preferred solution of the present embodiment, the fastener includes a nut 7 and a fixing bolt 6. The nut 7 is used for fixed connection with the base 10. The fan bearing seat 8 is provided with a plurality of positioning holes in the circumference. The fixing bolt 6 is used for threaded connection with the nut 7 and one end of the fixing bolt 6 passes through the nut 7 and is inserted into the positioning hole. The fastener adopts a combination of the nut 7 and the fixing bolt 6, which has a simple structure and is easy to install. The fixed connection between the nut 7 and the base 10 and the threaded connection between the fixing bolt 6 and the nut 7 can ensure that the fan bearing seat 8 is firmly connected to the base 10, limit the movement or rotation of the fan bearing seat 8, and improve the stability of the fan.

[0031] In a preferred solution of this embodiment, the number of fasteners is eight, which can more stably fix the fan bearing seat 8 from multiple angles, further improving the stability and reliability of the fan.

[0032] Embodiment 2

[0033] This embodiment also provides a method for using the fixing device for solving the problem of fan vibration caused by loosening of the embedded bolt foundation as in the above embodiment, comprising the following steps:

[0034] During routine maintenance, the inspection personnel found that one of the anchor bolts connecting the fan to the base 10 was loose. The first fixing plate 1 and the second fixing plate were fixedly connected to both sides of the concrete foundation 3 respectively, and the tops of the first support column and the second support column were fixedly connected to the two ends of the beam. Then, the bottom end of the first support column was welded and fixed to the first fixing plate 1, and the bottom end of the second support column was welded and fixed to the second fixing plate. The top of the connecting rod 5 of the telescopic limiter was fixedly connected to the beam, and the abutment plate was fixedly connected to the bottom end of the connecting rod 5. The top of the jack 4 was abutted and connected to the abutment plate. At the same time, the bottom end of the jack 4 was sleeved on the outer side of the top of the loose embedded anchor bolt 9 on the base 10, and fixed using the limiting hole at the bottom of the jack 4. The nut 7 was fixedly connected to the base 10, and arranged along the circumference of the fan bearing seat 8. The fixing bolt 6 was threadedly connected to the nut 7, and inserted into the positioning hole to ensure a firm connection. Repeat this step, install eight fasteners, and fix the fan bearing seat 8 from multiple angles.

[0035] According to the actual situation, adjust the height of jack 4 and apply appropriate pressure to the loose anchor bolts to achieve effective fixation. Check whether the connection of each component is tight and firm to ensure the stability of the entire fixture. Start the blast furnace dust removal fan and observe whether there is any abnormal vibration. If there is still vibration, further check and adjust the fixture until the fan runs smoothly.

[0036] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A fixing device for solving the problem of fan vibration caused by loosening of embedded bolt foundation, characterized in that: include: A base, the base being used to be fixedly connected to the concrete foundation by pre-buried anchor bolts; A fan bearing seat, the fan bearing seat is detachably fixedly connected to the top of the base, and the fan bearing seat is used to connect to a blast furnace dust removal fan to fix the blast furnace dust removal fan; A gantry, the bottom of which is used for fixed connection to the concrete foundation; as well as A telescopic limiter, the top end of which is used to be fixedly connected to the gantry, and the bottom end of which is used to tighten the position of the loose embedded anchor bolts on the base, and can wrap and fix the top of the loose embedded anchor bolts.

2. The fixing device for solving the problem of fan vibration caused by loosening of the embedded bolt foundation according to claim 1 is characterized in that: It also includes a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are respectively fixedly connected to both sides of the concrete foundation, the gantry includes a first support column, a second support column and a crossbeam, the two ends of the crossbeam are respectively fixedly connected to the top ends of the first support column and the second support column, the bottom end of the first support column is used for welding and fixing to the first fixing plate, the bottom end of the second support column is used for welding and fixing to the second fixing plate, and the top of the telescopic limiter is used for welding and fixing to the crossbeam.

3. The fixing device for solving the problem of fan vibration caused by loosening of the embedded bolt foundation according to claim 2 is characterized in that: The telescopic limit member includes a connecting rod, an abutment plate and a jack, the top end of the connecting rod is used to be fixedly connected to the crossbeam, the abutment plate is used to be fixedly connected to the bottom end of the connecting rod, the top end of the jack is used to abut against the abutment plate, and the bottom end of the jack is used to wrap and fix with the top of the loose embedded anchor bolt.

4. The fixing device for solving the problem of fan vibration caused by loosening of the embedded bolt foundation according to claim 3 is characterized in that: A limiting hole is arranged at the bottom of the jack, and the limiting hole is used for being sleeved and fixed on the outer side of the top of the loose embedded anchor bolt.

5. The fixing device for solving the problem of fan vibration caused by loosening of the embedded bolt foundation according to claim 1 is characterized in that: It also includes a plurality of fasteners, each of which is arranged along the circumference of the fan bearing seat, one end of the fastener is used to connect with the base, and the other end is used to connect with the fan bearing seat to limit the movement or rotation of the fan bearing seat.

6. The fixing device for solving the problem of fan vibration caused by loosening of the embedded bolt foundation according to claim 5 is characterized in that: The fastener includes a nut and a fixing bolt, the nut is used to be fixedly connected to the base, a plurality of positioning holes are arranged circumferentially on the fan bearing seat, and the fixing bolt is used to be threadedly connected to the nut and one end of the fixing bolt passes through the nut and is inserted into the positioning hole.

7. The fixing device for solving the problem of fan vibration caused by loosening of the embedded bolt foundation according to claim 6 is characterized in that: The number of the fasteners is eight.

8. A method for using the fixing device according to any one of claims 1 to 7 to solve the problem of fan vibration caused by loosening of the embedded bolt foundation, characterized in that: The following steps are involved: During routine maintenance, the inspection personnel found that an anchor bolt connecting the fan to the base was loose, so they fixed the gantry to the concrete foundation and fixed it to the gantry through the top of the telescopic limiter. The bottom end of the telescopic limiter pressed against the loose embedded anchor bolt on the base and was able to wrap and fix the top of the loose embedded anchor bolt.

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