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CN-121988801-A - Cutting blade edge grinding device for firefighting rescue cutting saw

CN121988801ACN 121988801 ACN121988801 ACN 121988801ACN-121988801-A

Abstract

The invention discloses a cutting edge grinding device of a fire rescue cutting saw blade, and mainly relates to the technical field of fire-fighting equipment. The polishing device comprises a working platform, a supporting mechanism, a pushing mechanism and a polishing mechanism, wherein the pushing mechanism comprises a driving shaft, a rotary table, a push rod and a push plate, the polishing mechanism comprises a swing arm, a first polishing wheel and a second polishing wheel, and the first linkage mechanism comprises a rotating frame, a cam and a supporting rod. The turntable rotates to drive the push rod and the push plate to push the saw blade to move at intervals, the moving distance is fixed, and the cutting edge can be aligned when the polishing mechanism descends and polishes. When the swing arm swings downwards, the first polishing wheel polishes the cutting edge, the two second polishing wheels polish the side surface of the saw blade, the cutting edge polishing and the side surface polishing of the saw blade are synchronously carried out, and the two second polishing wheels are integrated on one piece of equipment, so that the cost is reduced. The interval fixed-distance forward movement of the saw blade and the lifting of the polishing mechanism can be realized through a driving mechanism, so that the cost is reduced, the beat is compact, the efficiency is high, the misoperation can be effectively prevented, and the reliability is good.

Inventors

  • YANG DONG

Assignees

  • 山东博澳消防工程有限公司

Dates

Publication Date
20260508
Application Date
20260324

Claims (10)

  1. 1. The cutting edge grinding device for the fire rescue cutting saw blade comprises a working platform (1), a supporting mechanism, a pushing mechanism and a polishing mechanism, wherein the supporting mechanism is arranged on the working platform (1) and used for supporting the saw blade, the pushing mechanism is used for moving the saw blade at fixed distance, and the polishing mechanism is used for polishing the saw blade, and the cutting edge grinding device is characterized in that the pushing mechanism comprises a driving shaft (2), a turntable (3), a push rod (4) and a push plate (5), the driving shaft (2) is arranged on the working platform (1) and rotates on the working platform (1), the turntable (2) is arranged on the turntable, the upper end of the push rod is in rotary connection with the eccentric position of the turntable (3), and the push plate (5) is arranged at the lower end of the push rod (4); The polishing mechanism comprises a swing arm (15) arranged on the working platform (1) and swinging on the working platform (1), a first polishing wheel (16) arranged on the swing arm (15) and used for polishing a cutting edge, and a second polishing wheel (17) symmetrically arranged at the lower end of the swing arm (15) and used for polishing the side surface of a saw blade, wherein the rotating shaft of the first polishing wheel (16) is inclined downwards from left to right, and the rotating shaft of the second polishing wheel (17) is horizontally arranged; The swing arm (15) swings up and down under the action of a first linkage mechanism when the driving shaft (2) rotates, the first linkage mechanism comprises a rotating frame (21) which is supported on the working platform (1) at a middle position and is rotationally connected with the working platform (1), a cam (19) arranged on the driving shaft (2) and a supporting rod (20) arranged on the swing arm (15), the right end of the rotating frame (21) is in contact with the bottom of an outer cylindrical surface of the cam (19), and the left end of the rotating frame (21) is in contact with the bottom of the supporting rod (20).
  2. 2. The cutting edge grinding device for the fire rescue cutting saw blade according to claim 1, wherein the working platform (1) is provided with a stand column (6), the driving shaft (2) is arranged on the stand column (6) and rotates on the stand column (6), and the stand column (6) is provided with a motor (7) for driving the driving shaft (2) to rotate.
  3. 3. The cutting edge grinding device for the fire rescue cutting saw blade according to claim 1, wherein a cross rod (8) is arranged at the eccentric position of the rotary table (3), supporting blocks (9) are rotatably connected to the end parts of the cross rod (8), vertical plates (10) are symmetrically arranged at the upper ends of the supporting blocks (9), the upper ends of the push rods (4) sequentially penetrate through the vertical plates (10) and are in sliding connection with the vertical plates (10), compression springs (11) are arranged at the upper ends of the push rods (4), baffle plates (12) are arranged between the two vertical plates (10) at the upper ends of the push rods (4), the lower ends of the compression springs (11) are in contact with the baffle plates (12), and the upper ends of the compression springs (11) are in contact with the vertical plates (10) at the upper ends.
  4. 4. A fire rescue cutting blade edge grinding device as defined in claim 3, wherein the push rod (4) comprises a slide rod and a sleeve, the upper end of the slide rod penetrates through the vertical plate (10), the lower end of the slide rod penetrates into the sleeve and slides in the sleeve, the slide rod and the sleeve are locked by a screw, and the push plate (5) is fixed at the lower end of the slide rod.
  5. 5. A fire rescue cutting saw blade edge grinding device according to claim 3, wherein the lower end of the push plate (5) is provided with a roller (13), and the push plate (5) is provided with a balancing weight (14).
  6. 6. The cutting edge grinding device for the fire rescue cutting saw blade according to claim 1, wherein a bracket (18) is arranged on the working platform (1), a rotating shaft which is rotationally connected with the bracket (18) is arranged on the swing arm (15), and a rotary spring is arranged between the rotating shaft and the bracket (18).
  7. 7. The cutting edge grinding device for the fire rescue cutting saw blade according to claim 1, wherein a supporting plate (22) is arranged at the upper end of the swing arm (15), and the upper end of the supporting rod (20) penetrates through the supporting plate (22) and is fixed through a nut.
  8. 8. The fire rescue cutting saw blade edge grinding device according to claim 1, wherein the supporting mechanism comprises a U-shaped frame (23) symmetrically arranged on the working platform (1) and a mounting frame (24) arranged below the first grinding wheel (16), a supporting wheel (25) is arranged at the bottom of the mounting frame (24), and guide wheels (26) matched with the side surfaces of the saw blade are arranged on two side walls of the mounting frame (24).
  9. 9. The fire rescue cutting saw blade edge grinding device according to claim 1, further comprising an oil tank (27), a first lubrication pipeline (28) and a second lubrication pipeline (29) communicated with the upper end of the first lubrication pipeline (28), wherein the first lubrication pipeline (28) and the second lubrication pipeline (29) are communicated at intervals under the action of a second linkage mechanism when the swing arm (15) swings.
  10. 10. The fire rescue cutting saw blade edge grinding device according to claim 9, wherein the second linkage mechanism comprises a piston rod (30) and a piston (31) which is arranged at the lower end of the piston rod (30) and is lifted in the first lubrication pipeline (28), a guide rod (32) is arranged at the upper end of the piston rod (30), a swing rod (33) is arranged at the rear end of the swing arm (15), and a strip hole (34) matched with the guide rod (32) is formed in the swing rod (33).

Description

Cutting blade edge grinding device for firefighting rescue cutting saw Technical Field The invention relates to the technical field of fire-fighting equipment, in particular to a cutting edge grinding device of a fire-fighting rescue cutting saw blade. Background The fire-fighting rescue cutting saw blade is a core tool for emergency rescue breaking and dismantling operation, and is mainly used for cutting barriers such as metal protective nets, burglary-resisting windows, reinforcement cages, vehicle metal structures and the like. In a rescue scene, the time is life, and the breaking and dismantling operation needs to be completed quickly and efficiently, so that extremely high requirements on sharpness, durability and cutting efficiency of the cutting saw blade are provided. In order to ensure the sharpness of the cutting saw blade, the prior patent with the application number of CN202423052178.9 is named as a bimetal band saw blade tooth edge repairing device, which comprises a fixing frame, the top of the fixing frame is fixedly provided with a transverse electric sliding rail, the inside of horizontal electronic slide rail is equipped with horizontal electronic slider, and the fixed cylinder that is equipped with in bottom of horizontal electronic slider, the terminal fixed mounting of piston rod of cylinder have the batch oil tank, and the bottom of batch oil tank is fixed and is equipped with the grinding rod. The utility model can automatically finish polishing the bimetallic band saw blade. The automatic band saw blade grinding mechanism comprises a frame, wherein band saw blade fixing mechanisms are respectively arranged on the frame and used for fixing band saw blades, grinding devices are used for grinding the side faces of the band saw blades and are respectively located on the outer side and the inner side of a certain section of the band saw blades, each grinding device comprises a fixing plate, a grinding wheel assembly and a transverse moving assembly, the grinding wheel assembly is arranged on the fixing plate, the transverse moving assembly is arranged on the frame, the transverse moving assembly drives the fixing plates to be close to the band saw blades and then drives the grinding wheel assemblies to grind the band saw blades, and the band saw blade fixing mechanisms drive the band saw blades to sequentially move between the two grinding devices. However, the above proposal has the problems that 1) the polishing mechanism cannot precisely align the cutting edge, resulting in damage to the cutting edge. 2) Two devices are needed to respectively make the costs for the cutting edge and the two sides of the saw blade high. 3) The advancing of the saw blade and the lifting of the polishing mechanism respectively require two driving mechanisms, which leads to high equipment cost. Therefore, a polishing mechanism which can precisely polish both sides of a cutting edge and a saw blade and has low equipment cost is lacking in the prior art. Disclosure of Invention The invention aims at the defects in the prior art, and provides the cutting edge grinding device for the firefighting rescue cutting saw blade, which can accurately grind the cutting edge, and can grind the cutting edge and two sides of the saw blade at the same time, so that the cost is low. The technical scheme adopted for solving the technical problems is as follows: The cutting edge grinding device for the fire rescue cutting saw blade comprises a working platform, a supporting mechanism, a pushing mechanism and a polishing mechanism, wherein the supporting mechanism is arranged on the working platform and used for supporting the saw blade, the pushing mechanism is used for moving the saw blade at fixed intervals, and the polishing mechanism is used for polishing the saw blade; The pushing mechanism comprises a driving shaft, a rotary table, a push rod and a push plate, wherein the driving shaft is arranged on the working platform and rotates on the working platform, the rotary table is arranged on the driving shaft, the upper end of the push rod is rotationally connected with the eccentric position of the rotary table, and the push plate is arranged at the lower end of the push rod; The polishing mechanism comprises a swing arm arranged on the working platform and swinging on the working platform, a first polishing wheel arranged on the swing arm and used for polishing a cutting edge, and a second polishing wheel which is arranged at the lower end of the swing arm and used for polishing the side surface of the saw blade in a front-back symmetry manner, wherein the rotating shaft of the first polishing wheel is inclined downwards from left to right, and the rotating shaft of the second polishing wheel is horizontally arranged; The swing arm is swung up and down under the effect of first link gear when the drive shaft rotates, first link gear includes intermediate position support work platform is last and with work platform betwe