Leakage-proof structure of water inlet pipe and roller shot blasting device

Abstract

The invention discloses a water inlet pipe leakage-proof structure and a roller shot blasting device, the water inlet pipe leakage-proof structure has an automatic compensation function, and the water inlet end of the roller shot blasting device is provided with a water inlet leakage-proof structure. The sleeve ring is arranged on the water inlet small shaft, the threaded connector is arranged at the end of the sleeve ring, the coil rope is arranged between the sleeve ring and the water inlet small shaft, when the roller rotates for polishing, the roller drives the sleeve ring to rotate, so that the threaded connector on the sleeve ring is always in an inward tightening state, and the coil rope is firmly propped against the bearing to play a sealing role; therefore, even if the coiled rope is abraded, the coiled rope can be always in a sealed state through compensation, and the situation of water leakage at the coiled rope is avoided.

Description

Technical Field

[0001] The present invention relates to a shot blasting device, and particularly to a water inlet pipe leak prevention structure and a drum shot blasting device. Background Art

[0002] The main function of a shot blasting machine is to project shot at high speed onto the surface of a workpiece through a shot blasting device to remove impurities such as scale, rust, and welding slag, or to perform surface strengthening.

[0003] During the rotary shot blasting process of a drum shot blasting machine, water injection can reduce the shot blasting temperature, reduce noise, and improve the shot blasting effect.

[0004] Since the drum shot blasting machine needs to rotate, there is a problem of rotary sealing at the water inlet end. In the case of frequent rotary friction of the existing rotary sealing structure, due to local wear, the seal will fail, resulting in water leakage. In severe cases, it will even wash away the lubricating oil at the bearing. Summary of the Invention

[0005] Based on the deficiency that in the prior art, the shot blasting machine does not have a pressure relief and exhaust mechanism at the water inlet end, resulting in the gas mixed in the water affecting the shot blasting process, the present invention provides a water inlet pipe leak prevention structure and a drum shot blasting device.

[0006] The technical solutions adopted by the present invention to solve the above technical problems are as follows: A water inlet pipe leak prevention structure for supplying water to a drum type shot blasting machine, comprising: A water inlet pipe for supplying and draining water; A water inlet small shaft having a water inlet channel inside, the water inlet end of which is connected to the water inlet pipe and the water outlet end of which is provided with a bearing for cooperating with the drum of the drum type shot blasting machine; A collar sleeved on the water inlet small shaft and having a gap therebetween and the water inlet small shaft, one end of which is in interference fit with the rotating part of the drum type shot blasting machine and the other end of which is provided with an internal thread; A rope coiled in the gap between the collar and the water inlet small shaft; A threaded connector extending into the gap between the collar and the water inlet small shaft and threadedly connected to the collar; after the threaded connector is screwed in, the rope is pressed against the end of the bearing to form a seal and the collar rotates so that the threaded connector always has a tendency to be screwed in.

[0007] A drum shot blasting device comprising a frame, a drum rotatably provided on the frame and having a shot blasting chamber, and the above-mentioned water inlet pipe leak prevention structure. One end of the drum is provided with a hollow cylindrical body, the inner wall of the cylindrical body is a stepped structure and is in interference fit with the bearing on the water inlet small shaft, and the collar is in interference fit with the cylindrical body.

[0008] Preferably, the bearing is arranged at the junction of the two steps and one end of the bearing is flush with one of the step surfaces.

[0009] Preferably, a pressing and supporting structure is further included, which includes a hoop seat and a hoop type pressing plate. The hoop seat and the hoop type pressing plate are fixed by bolts, and a circular clamping space or supporting space is formed after they are fixed.

[0010] Preferably, two sets of pressing and supporting mechanisms are provided. One set has a clamping space and is used for pressing the small water inlet shaft, and the other set has a supporting space in which a supporting bearing for rotational cooperation is provided. The supporting bearing is fixedly connected to the outer wall of the cylindrical body for supporting the roller.

[0011] Preferably, the roller further includes a driving device, which includes a driving motor and a pulley arranged at the output end of the driving motor. A pulley is also provided at the side wall of the cylindrical body on one side, and the two pulleys are connected by a belt.

[0012] Preferably, a tee joint is provided at the water supply pipe. The bottom end of the tee joint is connected to a water pipe, a pressure relief valve for discharging gas is provided at the top end of the tee joint, and the right end of the tee joint is connected to the small water inlet shaft.

[0013] Preferably, a discharge port is provided on the drilling and shot blasting part. The discharge port is closed by a discharge door. A screen is provided below the discharge port. One side of the screen is rotatably connected to the frame, and a support spring is provided at the bottom of the other side of the screen.

[0014] Preferably, a cleaning pipe is provided on the frame. Sprayers or nozzles are provided on the cleaning pipe, and the sprayers or nozzles spray water on the middle part of the screen to clean the workpieces falling on the screen.

[0015] Compared with the prior art, the advantages of the present invention are as follows: A collar is provided on the small water inlet shaft outside the bearing in this application, a threaded connector is provided at the end of the collar, and a coiled rope is provided between the collar and the small water inlet shaft. When the roller rotates for polishing, the roller drives the collar to rotate so that the threaded connector on the collar is always in a state of being tightened inward, thereby pressing the coiled rope firmly against the bearing to play a sealing role. And because it has an automatic compensation function, even when the coiled rope is worn, the seal can be maintained at this place through compensation to avoid water leakage at this place. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0017] Figure 1 It is the front view of Embodiment 2; Figure 2 Is the perspective view of Example 2; Figure 3 Is the perspective view of Example 1; Figure 4 Is the sectional view of Example 1; Figure 5 Is the exploded view of Example 1; Figure 6 Is Figure 1 The enlarged view of part A in In the figure: 10, drum; 101, cylinder body; 20, pressure relief valve; 30, tee joint; 401, screen; 402, support spring; 403, cleaning pipe; 50, driving device; 501, driving motor; 502, belt; 601, water inlet small shaft; 602, collar; 603, threaded connector; 604, bearing; 605, coiled rope; 70, pressing support structure. Specific embodiments

[0018] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive and exemplary, and should not be construed as limiting the scope of the present invention.

[0019] It should be noted that: similar reference numerals represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it may not be further defined and explained in subsequent drawings. Embodiment

[0020] This embodiment mainly elaborates on the title of the water inlet pipe leak prevention structure, as follows: The water inlet pipe leak prevention structure, as Figures 3 - 5 shown, is used to supply water to the inside of a drum shot blasting machine, and includes: A water inlet pipe, which is used for water supply and drainage; A water inlet small shaft 50, which has a water inlet channel inside, whose water inlet end is connected to the water inlet pipe and whose water outlet end is provided with a bearing 604 for cooperating with the drum 10 of the drum shot blasting machine; A collar 602, which is sleeved on the water inlet small shaft 50 and has a gap between it and the water inlet small shaft 50, one end of which is in interference fit with the rotating part of the drum shot blasting machine, and the other end of which is provided with an internal thread; A coiled rope 605, which is coiled in the gap between the collar 602 and the water inlet small shaft 50; A threaded connector 603, which extends into the gap between the collar 602 and the water inlet small shaft 50 and is threadedly connected to the collar 602; after the threaded connector 603 is screwed in, the coiled rope 605 is pressed against the end of the bearing 604 to form a seal, and the collar 602 rotates, so that the threaded connector 603 always has a tendency to be screwed in. Embodiment

[0021] This embodiment mainly elaborates on the title of the drum 10 shot blasting device, specifically as follows: The drum 10 shot blasting device, as shown in Figure 1 , 2 , and Figure 6, includes a frame, a drum 10 rotatably arranged on the frame and having a shot blasting chamber, and the water inlet pipe leak-proof structure described in Embodiment 1. Both ends of the drum 10 are provided with hollow cylindrical bodies 101. The inner wall of the cylindrical body 101 is a stepped structure and is in interference fit with the bearing 604 on the water inlet small shaft 50. The collar 602 is in interference fit with the cylindrical body 101.

[0022] Preferably, the bearing 604 is arranged at the junction of the two steps and one end of the bearing 604 is flush with one of the step surfaces.

[0023] Preferably, it further includes a pressing and supporting structure 70, which includes a hoop seat and a hoop type pressing plate. The hoop seat and the hoop type pressing plate are fixed by bolts and form a circular clamping space or supporting space after being fixed.

[0024] Preferably, two sets of pressing and supporting mechanisms are provided. One set has a clamping space and is used to clamp the water inlet small shaft 50, and the other set has a supporting space and a supporting bearing for rotational fit is arranged in the supporting space. The supporting bearing is fixedly connected to the outer wall of the cylindrical body 101 for supporting the drum 10. One side of the two cylindrical bodies 101 on both sides has an opening and this side is for water inlet, and the other side is a closed structure and this side is for support and is in transmission connection with the driving device 50.

[0025] Preferably, the drum 10 further includes a driving device 50, which includes a driving motor 501 and a pulley 502 arranged at the output end of the driving motor 501. A pulley 502 is also arranged at the side wall of the cylindrical body 101 on one side. The two pulleys 502 are in transmission connection through a belt 502.

[0026] Preferably, a tee is provided at the water supply pipe. The bottom end of the tee is connected to a water pipe, a pressure relief valve 20 for discharging gas is provided at the top end of the tee, and the right end of the tee is connected to the water inlet small shaft.

[0027] Preferably, a discharge port is provided on the drilling and shot blasting part. The discharge port is closed by a discharge door. A screen 401 is provided below the discharge port. One side of the screen 401 is rotatably connected to the frame, and a support spring 402 is provided at the bottom of the other side of the screen 401.

[0028] Preferably, a cleaning pipe 403 is provided on the frame. A spray head or a spray port is provided on the cleaning pipe 403. The spray head or the spray port sprays water on the middle of the screen 401 to clean the workpieces falling on the screen 401.

[0029] The above has introduced the title provided by the present invention in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the present invention and its core idea. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. The water inlet pipe leak-proof structure is used to supply water to the drum shot blasting machine, and is characterized in that, Comprising: A water inlet pipe, which is used for water supply and drainage; A small water inlet shaft, which has a water inlet channel inside, the water inlet end of which is connected to the water inlet pipe and the water outlet end of which is provided with a bearing for cooperating with the drum of the drum shot blasting machine; A collar, which is sleeved on the small water inlet shaft and has a gap therebetween, one end of which is in interference fit with the rotating part of the drum shot blasting machine, and the other end of which is provided with an internal thread; A coiled rope, which is coiled in the gap between the collar and the small water inlet shaft; A threaded connector, which extends into the gap between the collar and the small water inlet shaft and is threadedly connected to the collar; after the threaded connector is screwed in, the coiled rope is pressed against the end of the bearing to form a seal, and the collar rotates, so that the threaded connector always has a tendency to be screwed in.

2. Drum shot blasting device, characterized in that, It comprises a frame, a drum rotatably arranged on the frame and having a shot blasting chamber, and the water inlet pipe leak-proof structure described in claim 1. One end of the drum is provided with a hollow cylinder body. The inner wall of the cylinder body is a stepped structure and is in interference fit with the bearing on the small water inlet shaft, and the collar is in interference fit with the cylinder body.

3. The barrel shot blasting device according to claim 2, characterized in that, The bearing is arranged at the junction of the two steps, and one end of the bearing is flush with one of the step surfaces.

4. The barrel shot blasting device according to claim 2, wherein It further comprises a pressing and supporting structure, which comprises a hoop seat and a hoop type pressing plate. The hoop seat and the hoop type pressing plate are fixed by bolts, and a circular clamping space or supporting space is formed after the two are fixed.

5. The barrel shot blasting device according to claim 4, characterized in that, Two groups of pressing and supporting mechanisms are provided. One group has a clamping space and is used for pressing the small water inlet shaft. The other group has a supporting space, and a supporting bearing for rotational cooperation is arranged in the supporting space. The supporting bearing is fixedly connected to the outer wall of the cylinder body for supporting the drum.

6. The barrel shot blasting device according to claim 2, characterized in that, The drum further comprises a driving device, which comprises a driving motor and a pulley arranged at the output end of the driving motor. A pulley is also arranged at the side wall of the cylinder body on one side. The two pulleys are connected by a belt for transmission.

7. The barrel shot blasting device according to claim 2, wherein, A tee joint is arranged at the water supply pipe. The bottom end of the tee joint is connected to a water pipe. The top end of the tee joint is provided with a pressure relief valve for discharging gas. The right end of the tee joint is connected to the small water inlet shaft.

8. The barrel shot blasting device according to claim 2, characterized in that, A discharge port is arranged on the drilling and shot blasting part. The discharge port is closed by a discharge door. A screen is arranged below the discharge port. One side of the screen is rotatably connected to the frame, and a support spring is arranged at the bottom of the other side of the screen.

9. The barrel shot blasting device according to claim 8, characterized in that, A cleaning pipe is arranged on the frame. A spray head or a spray port is arranged on the cleaning pipe. The spray head or the spray port sprays water on the middle part of the screen to clean the workpieces falling on the screen.

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