Search

CN-121989367-A - Passive roller device and cutting machine

CN121989367ACN 121989367 ACN121989367 ACN 121989367ACN-121989367-A

Abstract

The invention relates to the field of cutting machines and discloses a passive roller device and a cutting machine, wherein the passive roller device comprises a passive shaft body, a shaft seat, a first rubber ring, a first bearing and a passive turntable; the driven shaft body is provided with a fixed shaft section and a first assembly shaft section, the fixed shaft section is fixedly connected with the shaft seat, a plurality of driven turntables are sequentially sleeved on the first assembly shaft section along the length direction, gaps are reserved between every two adjacent driven turntables, each driven turntable is rotationally connected with the first assembly shaft section through a first bearing, a first rubber ring is sleeved on the outer circumferential surface of each driven turntable, a positioning structure is arranged between each first rubber ring and each driven turntable, and a first accommodating groove for accommodating the bead string rope saw is annularly arranged on the outer circumferential surface of each first rubber ring. The invention has the advantages that the invention can passively drive the multi-strand beaded rope saw to move, thereby reducing the working energy consumption and the realization cost, and can conveniently install the beaded rope saw with the annular structure.

Inventors

  • YU XIN

Assignees

  • 余鑫

Dates

Publication Date
20260508
Application Date
20260211

Claims (10)

  1. 1. The passive roller device is characterized by comprising a passive shaft body, a shaft seat, a first rubber ring, a first bearing and a passive turntable; The driven shaft body is provided with a fixed shaft section and a first assembly shaft section, the fixed shaft section is fixedly connected with the shaft seat, a plurality of driven turntables are sequentially sleeved on the first assembly shaft section along the length direction, gaps are reserved between every two adjacent driven turntables, each driven turntable is rotationally connected with the first assembly shaft section through a first bearing, a first rubber ring is sleeved on the outer circumferential surface of each driven turntable, a positioning structure is arranged between each first rubber ring and each driven turntable, and a first accommodating groove for accommodating the bead string rope saw is annularly arranged on the outer circumferential surface of each first rubber ring.
  2. 2. The passive roller device according to claim 1, wherein waterproof discs for achieving limiting and waterproof functions are arranged at two ends of the first assembly shaft section, and waterproof structures are arranged between the waterproof discs and the passive rotary discs and between two adjacent passive rotary discs.
  3. 3. The passive roller device according to claim 2, wherein the waterproof structure comprises a plurality of first embedded concave rings and a plurality of first embedded convex rings which are arranged on two side surfaces of the passive turntable and on one side surface of the waterproof turntable, each first embedded concave ring and each first embedded convex ring of one opposite side of two adjacent passive turntables are embedded with each other, and each first embedded concave ring and each first embedded convex ring of one opposite side of the waterproof disk and the passive turntable are embedded with each other.
  4. 4. The passive roller device according to claim 2, wherein a limiting convex ring is formed between the fixed shaft section and the first assembling shaft section on the passive shaft body, and a waterproof disc near one end of the fixed shaft section is abutted against the limiting convex ring.
  5. 5. A passive roller device according to claim 2, characterized in that the free end of the first mounting shaft section is formed with a threaded section, on which a lock nut is arranged, and the top of the lock nut is abutted against a water-repellent disc near the free end of the first mounting shaft section.
  6. 6. The passive roller device according to claim 1, wherein the positioning structure comprises a second embedded concave ring annularly arranged on the outer circumferential surface of the passive turntable and a second embedded convex ring annularly arranged on the inner circumferential surface of the first rubber ring, and the second embedded convex ring is embedded in the second embedded concave ring; The cross section of the second embedded concave ring sequentially comprises a narrowed cavity section, a straight cavity section and an inverted trapezoid cavity section from shallow to deep, a limiting step is formed at the transition position of the straight cavity section and the inverted trapezoid cavity section, and the shape of the second embedded convex ring is matched with that of the second embedded concave ring.
  7. 7. The passive roller device according to claim 1, wherein the shaft seat comprises a first seat body and a second seat body, a shaft hole is formed in the first seat body in a penetrating manner, and the fixed shaft section penetrates through the shaft hole and is connected with the second seat body in a locking manner.
  8. 8. The passive roller device according to claim 7, wherein the second base body is provided with a limiting hole, and a free end of the fixed shaft section is provided with a limiting part inserted into the limiting hole.
  9. 9. The passive roller device according to claim 1, wherein the passive turntable is an aluminum disc, and the passive shaft body is of a hollow structure.
  10. 10. A cutting machine comprising a passive roller device according to any one of claims 1-9.

Description

Passive roller device and cutting machine Technical Field The invention relates to the technical field of cutting machines, in particular to a passive roller device and a cutting machine. Background The bead string saw is a cutting tool with diamond beads arranged on an annular steel wire rope at intervals, is suitable for cutting various hard materials, and is mainly applied to the fields of stone mining, construction, plate cutting and the like at present. The rope saw cutting machine is a device for driving the beaded rope saw to perform linear motion so as to realize the cutting function, such as a cutting device for a granite hairline board rope saw and a cutting method thereof disclosed in Chinese patent application with the application number of CN202310163266.7, wherein the application date is 2023, 02 and 24. However, the existing rope saw cutting machine can only drive one bead string rope saw to move generally, the defect of low cutting efficiency exists, and the installation is inconvenient because the bead string rope saw is of an annular structure, meanwhile, the existing rollers are all required to be provided with power mechanisms, so that the working energy consumption is high, and the realization cost is high. Therefore, it is desirable to provide a passive roller device that can passively drive a plurality of bead string rope saws to move and facilitate the installation of the bead string rope saws, so as to reduce the working energy consumption and the implementation cost. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a passive roller device and a cutting machine, which can passively drive a plurality of bead string rope saws to move, thereby reducing the working energy consumption and the realization cost and being convenient for installing the bead string rope saws with annular structures. In order to achieve the above purpose, the invention is realized by the following technical scheme: In a first aspect, a passive roller device includes a passive shaft body, a shaft seat, a first rubber ring, a first bearing and a passive turntable; The driven shaft body is provided with a fixed shaft section and a first assembly shaft section, the fixed shaft section is fixedly connected with the shaft seat, a plurality of driven turntables are sequentially sleeved on the first assembly shaft section along the length direction, gaps are reserved between every two adjacent driven turntables, each driven turntable is rotationally connected with the first assembly shaft section through a first bearing, a first rubber ring is sleeved on the outer circumferential surface of each driven turntable, a positioning structure is arranged between each first rubber ring and each driven turntable, and a first accommodating groove for accommodating the bead string rope saw is annularly arranged on the outer circumferential surface of each first rubber ring. Furthermore, waterproof discs for realizing limiting and waterproof functions are arranged at two ends of the first assembly shaft section, and waterproof structures are arranged between the waterproof discs and the driven turntables and between the adjacent two driven turntables. Further, the waterproof structure comprises a plurality of first embedded concave rings and a plurality of first embedded convex rings, wherein the first embedded concave rings and the first embedded convex rings are arranged on the two side surfaces of the driven turntable and the side surface of the waterproof disk face to the driven turntable, the first embedded concave rings and the first embedded convex rings on the opposite sides of the two adjacent driven turntables are embedded with each other, and the first embedded concave rings and the first embedded convex rings on the opposite sides of the waterproof disk and the driven turntable are embedded with each other. Further, a limiting convex ring is formed between the fixed shaft section and the first assembly shaft section on the driven shaft body, and a waterproof disc close to one end of the fixed shaft section abuts against the limiting convex ring. Further, a thread section is formed at the free end of the first assembly shaft section, a lock nut is arranged on the thread section, and a waterproof disc close to the free end of the first assembly shaft section is abutted against the lock nut. Further, the positioning structure comprises a second embedded concave ring which is annularly arranged on the outer circumferential surface of the passive turntable and a second embedded convex ring which is annularly arranged on the inner circumferential surface of the first rubber ring, and the second embedded convex ring is embedded in the second embedded concave ring; The cross section of the second embedded concave ring sequentially comprises a narrowed cavity section, a straight cavity section and an inverted trapezoid cavity section from shallow to deep, a limiting step is formed at the