Waterproof Structure of Tensioning Telescopic Guide Rod of Gang Saw

Abstract

The present invention discloses a waterproof structure for the tensioning telescopic guide rod of a gang sawing machine, which includes a guide rod disposed in a guide rod waterproof sleeve. The guide rod waterproof sleeve includes a front waterproof sleeve body and a rear waterproof sleeve body. The rear waterproof sleeve body is fixedly installed in the tensioning box and includes a front sleeve part sleeved on the guide rod and a rear sleeve part installed on the guide rod through a front oil-free lubricating bearing and a rear oil-free lubricating bearing. A dust-proof sealing ring Ⅰ sealed on the guide rod is provided at the rear end of the rear sleeve part; the front waterproof sleeve body is sleeved on the front sleeve part and fixedly installed on the guide rod. An interval greater than the stroke of the tensioning oil cylinder is reserved between the front waterproof sleeve body and the rear sleeve part. A dust-proof sealing ring Ⅱ sealed on the front sleeve part is provided at the rear end of the front waterproof sleeve body. In the structure of the present invention, the telescopic part of the guide rod is effectively protected by the front waterproof sleeve body and the rear waterproof sleeve body, preventing the entry of water vapor and dust, and enabling the guide rod to be telescopically used for a long time without being corroded, rusted or deformed.

Description

Technical Field

[0001] The present invention relates to the structural components of a wire saw machine, specifically to a waterproof structure for the tensioning telescopic guide rod of a multi-group saw machine. Background Art

[0002] The applicant's unit has developed a large multi-group wire saw machine, which installs several to dozens of wire saws side by side and can cut several to dozens of granite slabs simultaneously.

[0003] Since the wire saw for each group is a closed-loop wire saw made of steel wire ropes about 25 meters long through a special process, there are certain errors in the lengths of dozens of wire saws in each group. In order to ensure that the cutting efficiency of each group of wire saws is consistent when cutting large slabs and to ensure that the quality of the cut board surface meets the requirements, it is required that each tensioning wheel be independently tensioned. This requires that the synchronism of the telescopic tensioning guide rod of the designed tensioning wheel must be very high, and there should be no jamming or other situations.

[0004] Moreover, the working conditions of the multi-group saw machine are very harsh during operation. The entire working process is in a water environment, and the mud carried out by cutting the stone has certain corrosiveness. Therefore, there are high requirements for the waterproof and anti-corrosion performance of the entire tensioning guide rod. It is required that dozens of tensioning wheels in the same group must be able to expand and contract freely during operation to ensure that each wire saw is under a reasonable cutting tension. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a waterproof structure for the tensioning telescopic guide rod of a multi-group saw machine with no jamming during expansion and contraction.

[0006] A waterproof structure for the tensioning telescopic guide rod of a multi-group saw machine that can solve the above technical problems includes a guide rod disposed in a guide rod waterproof sleeve, characterized in that the guide rod waterproof sleeve includes a front waterproof sleeve body and a rear waterproof sleeve body, wherein:

[0007] 1. The rear waterproof sleeve body is fixedly installed in the tensioning box and includes a front sleeve part sleeved on the guide rod and a rear sleeve part installed on the guide rod through a front oil-free lubricating bearing and a rear oil-free lubricating bearing. A dust-proof sealing ring Ⅰ that seals on the guide rod is provided at the rear end of the rear sleeve part.

[0008] 2. The front waterproof sleeve body is sleeved on the front sleeve part and fixedly installed on the guide rod. There is a space greater than the stroke of the tensioning oil cylinder reserved between the front waterproof sleeve body and the rear sleeve part. A dust-proof sealing ring Ⅱ that seals on the front sleeve part is provided at the rear end of the front waterproof sleeve body.

[0009] To obtain good lubrication, an oil supply pipe for supplying lubricating oil to the rod body is provided in the guide rod.

[0010] To evenly distribute the lubricating oil, a spiral oil groove is provided on the rod body of the guide rod.

[0011] To enhance the force-bearing capacity of the guide rod, a spacer sleeve sleeved on the guide rod is provided between the front oil-free lubricating bearing and the rear oil-free lubricating bearing.

[0012] Furthermore, a tightening screw ring is screwed onto the rear part of the sleeve to lock the rear waterproof sleeve body in the tension box.

[0013] Advantages of the present invention:

[0014] 1. In the waterproof structure of the tensioning telescopic guide rod of the present invention's gang saw, the telescopic part of the guide rod is effectively protected by the front waterproof sleeve body and the rear waterproof sleeve body, preventing the entry of water vapor and dust, and enabling long-term telescopic use without being corroded, rusted, or deformed.

[0015] 2. In the structure of the present invention, the lubrication between the guide rod and the rear waterproof sleeve body is uniform, and the telescoping is not stuck, ensuring the uniformity of the tensioning force, and providing necessary technical support for the stable operation of the entire gang saw equipment and the cutting quality of the board. Description of the drawings

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0017] Figure 2 It is Figure 1 the A-A cross-sectional view in

[0018] Figure 3 Figure 1 A partial enlarged view of the assembly of the guide rod waterproof sleeve on the guide rod in the embodiment.

[0019] Drawing number identification: 1. Guide rod; 1-1. Flat position; 2. Front waterproof sleeve body; 3. Rear waterproof sleeve body; 3-1. Front part of the sleeve; 3-2. Rear part of the sleeve; 4. Front oil-free lubricating bearing; 5. Rear oil-free lubricating bearing; 6. Dust-proof sealing ring I; 7. Dust-proof sealing ring II; 8. Spacing; 9. Oil groove; 10. Oil supply pipe; 11. Spacer sleeve; 12. Tightening screw ring; 13. Dust-proof sealing ring III; 14. Key retaining ring assembly. Specific implementation mode

[0020] The technical solution of the present invention will be further described below in conjunction with the embodiments shown in the drawings.

[0021] The waterproof structure of the tensioning telescopic guide rod of the present invention's gang saw includes a guide rod 1 and a guide rod waterproof sleeve. The guide rod 1 is slidably installed in the guide rod waterproof sleeve, and the guide rod waterproof sleeve is installed in the tension box. A tensioning wheel is installed on the flat position 1-1 at the front end of the guide rod 1. An axial oil supply pipe 10 located at the rear part of the guide rod 1 is opened inward at the rear end of the guide rod 1, as Figure 1 shown.

[0022] The guide rod waterproof sleeve includes a front waterproof sleeve body 2 and a rear waterproof sleeve body 3. The front waterproof sleeve body 2 is sleeved on the front part of the guide rod 1 (with a relatively large sleeving gap). The front end of the front waterproof sleeve body 2 is flush with the tail end of the flat position 1-1 of the guide rod 1. The front end of the front waterproof sleeve body 2 is fixedly installed on the guide rod 1 with screws and is provided with a dust-proof sealing ring III 13. The rear waterproof sleeve body 3 includes a coaxial sleeve front part 3-1 and a sleeve rear part 3-2. The sleeve rear part 3-2 is slidably installed on the guide rod 1 through a front oil-free lubricating bearing 4 and a rear oil-free lubricating bearing 5. A spacer sleeve 11 slidably sleeved on the guide rod 1 is arranged between the front oil-free lubricating bearing 4 and the rear oil-free lubricating bearing 5. The front oil-free lubricating bearing 4 is axially limited by the inner hole step of the spacer sleeve 11 and the front end part of the sleeve rear part 3-2. The rear oil-free lubricating bearing 5 is axially limited by the spacer sleeve 11 and a keyway retaining ring assembly 14 at the rear end part of the sleeve rear part 3-2. A dust-proof sealing ring I 6 sealed on the guide rod 1 (located at the rear side of the keyway retaining ring assembly 14) is also arranged at the rear end part of the sleeve rear part 3-2. The sleeve front part 3-1 is sleeved in the sleeving gap between the guide rod 1 and the front waterproof sleeve body 2. A dust-proof sealing ring II 7 sealed on the sleeve front part 3-1 is arranged at the rear end part of the front waterproof sleeve body 2. A certain distance of interval 8 is reserved between the front end face of the sleeve rear part 3-2 and the rear end face of the front waterproof sleeve body 2, as Figure 1 , Figure 2 , Figure 3 shown.

[0023] A tightening screw ring 12 is screwed on the sleeve rear part 3-2. The tightening screw ring 12 is tightened at the rear side of the tensioning box. The front side of the tensioning box is limited by the outer edge step of the front end part of the sleeve rear part 3-2. A spiral oil groove 9 (with a semicircular cross-section) is opened on the middle rod body of the guide rod 1. The oil groove 9 is communicated with an oil supply pipe 10 through a radial oil passage, as Figure 2 , Figure 3 shown.

[0024] When the tensioning wheel works, the guide rod 1 and the front waterproof sleeve body 2 extend or retract under the thrust or pulling force of the tensioning oil cylinder. During this process, the guide rod 1 expands and contracts inside the rear waterproof sleeve body 3, and the front waterproof sleeve body 2 expands and contracts on the sleeve front part 3-1 of the rear waterproof sleeve body 3. When the stroke of the tensioning oil cylinder is less than the interval 8, it can ensure that external water vapor, mud, etc. will not enter between the guide rod 1 and the rear waterproof sleeve body 3, thus protecting the guide rod 1 from corrosion and rust.

[0025] After working for a period of time, lubricating oil can be filled through the oil supply pipe 10, so that there is sufficient lubrication between the guide rod 1 and the rear waterproof sleeve body 3, ensuring the smooth expansion and contraction of the guide rod 1 without jamming.

Claims

1. Waterproof structure for tensioning telescopic guide rod of gang sawing machine, including a guide rod (1) arranged in a guide rod waterproof sleeve, characterized in that The guide rod waterproof sleeve includes a front waterproof sleeve body (2) and a rear waterproof sleeve body (3), where: The front waterproof sleeve body (2) is sleeved on the front part of the guide rod (1). The front end of the front waterproof sleeve body (2) is fixedly installed on the guide rod (1) with screws and is provided with a dust-proof sealing ring III (13); The rear waterproof sleeve body (3) includes a coaxial sleeve front part (3-1) and a sleeve rear part (3-2). The sleeve rear part (3-2) is slidably installed on the guide rod (1) through a front oil-free lubricating bearing (4) and a rear oil-free lubricating bearing (5). A spacer sleeve (11) slidably sleeved on the guide rod (1) is arranged between the front oil-free lubricating bearing (4) and the rear oil-free lubricating bearing (5). The front oil-free lubricating bearing (4) is axially limited by the inner hole step of the spacer sleeve (11) and the front end of the sleeve rear part (3-2). The rear oil-free lubricating bearing (5) is axially limited by the spacer sleeve (11) and the key retaining ring assembly (14) at the rear end of the sleeve rear part (3-2). A dust-proof sealing ring I (6) sealed on the guide rod (1) is also arranged at the rear end of the sleeve rear part (3-2); The sleeve front part (3-1) is sleeved in the sleeving gap between the guide rod (1) and the front waterproof sleeve body (2). A dust-proof sealing ring II (7) sealed on the sleeve front part (3-1) is arranged at the rear end of the front waterproof sleeve body (2). A certain distance of interval (8) is reserved between the front end face of the sleeve rear part (3-2) and the rear end face of the front waterproof sleeve body (2); When the tensioning wheel works, the guide rod (1) and the front waterproof sleeve body (2) extend or retract under the thrust or pull of the tensioning oil cylinder. During this process, the guide rod (1) telescopically moves inside the rear waterproof sleeve body (3), and the front waterproof sleeve body (2) telescopically moves on the sleeve front part (3-1) of the rear waterproof sleeve body (3). When the stroke of the tensioning oil cylinder is less than the interval (8), it can ensure that external water vapor and mud will not enter between the guide rod (1) and the rear waterproof sleeve body (3), thereby protecting the guide rod (1) from corrosion and rust.

2. The waterproof structure of the tensioning telescopic guide rod of the gang sawing machine according to claim 1, characterized in that: An oil supply pipe (10) for supplying lubricating oil to the rod body is provided inside the guide rod (1).

3. The waterproof structure of the tensioning telescopic guide rod of the gang sawing machine according to claim 2, wherein: A spiral oil groove (9) is provided on the rod body of the guide rod (1).

4. The waterproof structure of the tension telescopic guide rod of the gang sawing machine according to any one of claims 1 to 3, characterized in that: A spacer sleeve (11) sleeved on the guide rod (1) is arranged between the front oil-free lubricating bearing (4) and the rear oil-free lubricating bearing (5).

5. The waterproof structure of the tensioning telescopic guide rod of the gang sawing machine according to any one of claims 1 to 3, characterized in that: A tightening screw ring (12) for locking the rear waterproof sleeve body (3) in the tensioning box is screwed on the sleeve rear part (3-2).

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