Tread sweeper with silencer easy to replace

Abstract

The tread sweeper comprises a cylinder body, a cylinder cover is fixed to the left end of the cylinder body, a piston rod is installed in the cylinder body in a sliding mode, a fixing base extending to the outside of the cylinder body is fixedly arranged at the right end of the piston rod, a grinding piece support is installed on the right side of the fixing base, and a grinding piece is installed on the grinding piece support. A dustproof sleeve is arranged between the right end of the cylinder body and the fixing seat and encloses a gap between the right end of the cylinder body and the fixing seat to form an air cavity, an air channel is formed in the fixing seat, an inner side port of the air channel is connected with the air cavity in a penetrating mode, an outer side port of the air channel faces the outside of the fixing seat, and a silencer is installed at the outer side port of the air channel. According to the tread sweeper with the silencer easy to replace, the silencer is installed at the position of the outer side port of the gas channel, when the silencer breaks down and needs to be overhauled or replaced, the silencer can be directly detached to be overhauled or replaced, a dustproof sleeve does not need to be detached, and therefore the overhauling workload of the silencer is greatly reduced, and the service life of the silencer is prolonged. The maintenance efficiency of the silencer is obviously improved; the whole structural design is simple, the original structure of the tread sweeper does not need to be greatly changed, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of tread cleaning equipment for rail transportation, in particular to a tread cleaning device with an easily replaceable muffler. Background Art

[0002] At present, when the wheel tread of a rail transit vehicle is damaged, out of round, or has low viscosity, the wheel surface condition can be improved, slipping and idling can be prevented, and the wheel tread can be corrected by contacting with the grinding wheel of the tread cleaning device. The tread cleaning device of the prior art has a structure including a cylinder body, a cylinder head fixed to the left end of the cylinder body, a piston rod slidably installed inside the cylinder body, a fixed seat extending to the outside of the cylinder body fixed to the right end of the piston rod, a grinding wheel holder installed on the right side of the fixed seat, a grinding wheel installed on the grinding wheel holder, a dust cover is provided between the right end of the cylinder body and the fixed seat, and the dust cover encloses the gap between the right end of the cylinder body and the fixed seat to form an air cavity. In order to keep the air pressure inside the air cavity always balanced with the external air pressure during the extension and contraction of the piston rod, so that the piston rod can be extended and contracted smoothly, a gas channel connecting the air cavity and the outside is usually directly opened on the fixed seat. In order to reduce the noise when the air cavity is inflated and deflated during the extension and contraction of the piston rod, a muffler is usually installed at one end of the gas channel facing the air cavity. The problem with the installation method of the muffler is that the dust cover is fixed between the right end of the cylinder body and the fixing seat. When the muffler fails and needs to be repaired, the dust cover needs to be removed. After the muffler is repaired, the dust cover needs to be re-fixed between the right end of the cylinder body and the fixing seat. The operation is cumbersome and seriously affects the maintenance efficiency of the muffler. Therefore, the utility model proposes a tread cleaner that is easy to replace the muffler, in order to solve the above technical problems. Summary of the invention

[0003] The purpose of the utility model is to overcome the defects in the prior art and provide a tread cleaner with an easy-to-replace muffler. By installing the muffler at the outer port position of the gas channel, when the muffler fails and needs to be repaired or replaced, the muffler can be directly removed for repair or replacement without removing the dust cover, thereby greatly reducing the maintenance workload of the muffler and significantly improving the maintenance efficiency of the muffler. The overall structural design is simple, and there is no need to make a lot of changes to the original structure of the tread cleaner, and the utility model is highly practical.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is to design a tread sweeper with an easy-to-replace silencer, comprising a cylinder body, a cylinder cover fixed to the left end of the cylinder body, a piston rod slidably installed inside the cylinder body, a fixed seat extending to the outside of the cylinder body is fixed to the right end of the piston rod, a grinder support is installed on the right side of the fixed seat, a grinder is installed on the grinder support, a dust cover is provided between the right end of the cylinder body and the fixed seat, the dust cover encloses the gap between the right end of the cylinder body and the fixed seat to form an air cavity, a gas channel is opened inside the fixed seat, the inner port of the gas channel is connected to the air cavity, the outer port of the gas channel faces the outside of the fixed seat, and a silencer is installed on the outer port of the gas channel.

[0005] The utility model discloses a tread cleaner for easily replacing a muffler. The muffler is installed at the outer port position of the gas passage. When the muffler fails and needs to be repaired or replaced, the muffler can be directly removed for repair or replacement without removing the dust cover, thereby greatly reducing the maintenance workload of the muffler and significantly improving the maintenance efficiency of the muffler. The overall structural design is simple, and there is no need to make a lot of changes to the original structure of the tread cleaner, so the utility model has strong practicality.

[0006] The preferred technical solution is that the outer port of the gas channel is provided with a threaded inner surface, the inner end of the muffler is provided with a threaded outer surface, and the inner end of the muffler is screwed and fixedly installed at the outer port of the gas channel. The muffler is screwed and installed at the outer port of the gas channel, and the fixed installation method is simple, ensuring the high efficiency of the muffler when it is repaired or replaced.

[0007] A further preferred technical solution is that the gas passage includes gas passage one and gas passage two, one end of the gas passage one crosses and penetrates with one end of the gas passage two, the other end of the gas passage one is connected to the air cavity, and the other end of the gas passage two faces the outside of the fixing seat and is equipped with the muffler. The gas passage is composed of gas passage one and gas passage two, and the structural design is simple, and a hole can be directly opened on the fixing seat, which ensures the processing efficiency of the tread cleaner of the utility model.

[0008] A further preferred technical solution is that the fixing seat has a connecting plate extending to the right, the connecting plate has a mounting hole penetrating the plate body, the grinding sub-holder is fixedly mounted on the connecting plate by a bolt assembly, and the port of the air duct 2 away from the air duct 1 is located on a side edge of the connecting plate. The muffler is installed on a side edge of the connecting plate on the fixing seat, and even if the muffler is located in a position that is convenient for the tread cleaner to be replaced, the overall operation efficiency during the maintenance of the muffler is further ensured.

[0009] A further preferred technical solution also includes a fixed sleeve, wherein the left end of the fixed sleeve is embedded and fixed in the right end of the cylinder body, and the left end of the dust cover is sleeved and fixed to the outer side of the right end of the fixed sleeve, and the right end is sleeved and fixed to the outer peripheral side of the fixed seat.

[0010] A further preferred technical solution is that the dust cover is a bellows.

[0011] A further preferred technical solution is that a sealing sleeve is embedded inside the cylinder body, the piston rod and the inner wall of the sealing sleeve are sealed and slidably matched, a lead screw sleeve is sleeved in the annular groove in the middle of the outer side of the piston rod, the piston rod has a cavity opening to the left, a piston rod and a return spring sleeved on the outside of the piston rod are installed inside the cavity of the piston rod, the left end of the return spring abuts against a spring retaining ring 1 fixed at the left end of the piston rod, and the right end abuts against a spring retaining ring 2 fixed at the right end of the piston rod. The overall structural design of the tread sweeper of the utility model is simple, the preparation and implementation feasibility is high, and the practicability is strong.

[0012] The advantages and beneficial effects of the utility model are:

[0013] 1. The utility model provides a tread cleaner with an easy-to-replace muffler. By installing the muffler at the outer port position of the gas channel, when the muffler fails and needs to be repaired or replaced, the muffler can be directly removed for repair or replacement without removing the dust cover, thereby greatly reducing the maintenance workload of the muffler and significantly improving the maintenance efficiency of the muffler. The overall structural design is simple, and there is no need to make a lot of changes to the original structure of the tread cleaner, so it is highly practical.

[0014] 2. The silencer is screwed and installed at the outer port of the gas channel. The fixed installation method is simple, ensuring the high efficiency when the silencer is repaired or replaced.

[0015] 3. The gas passage is composed of the first gas passage and the second gas passage, and the structure design is simple, and a hole can be directly opened on the fixed seat, thereby ensuring the processing efficiency of the tread cleaner of the utility model.

[0016] 4. The muffler is installed on one side edge of the connecting plate on the fixed seat, so that the muffler is located in a position that is convenient for the tread cleaner to be replaced, further ensuring the overall operational efficiency during the muffler maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the tread cleaner in use state with an easy-to-replace silencer of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the tread cleaner of the utility model, in which the muffler is easy to replace;

[0019] Figure 3 yes Figure 2 A longitudinal cross-sectional view along the AA direction of a tread cleaner with an easily replaceable muffler.

[0020] In the figure: 1. cylinder body; 2. cylinder head; 3. piston rod; 4. sealing cylinder; 5. fixing sleeve; 6. fixing seat; 7. piston pull rod; 8. return spring; 9. screw sleeve; 10. dust cover; 11. grinding wheel support; 12. grinding wheel; 13. gas channel; 14. muffler; 15. air cavity; 6-1. connecting plate; 6-1. spring retaining ring 1; 6-2. spring retaining ring 2; 13-1. airway 1; 13-2. airway 2. DETAILED DESCRIPTION

[0021] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0022] Example

[0023] like Figures 1 to 3 As shown, the utility model is a tread sweeper with an easy-to-replace silencer, comprising a cylinder body 1, a cylinder head 2 being fixed to the left end of the cylinder body 1, a piston rod 3 being slidably installed inside the cylinder body 1, a fixing seat 6 extending to the outside of the cylinder body 1 being fixed to the right end of the piston rod 3, a grinding sub holder 11 being installed on the right side of the fixing seat 6, a grinding sub holder 12 being installed on the grinding sub holder 11, a dust cover 10 being provided between the right end of the cylinder body 1 and the fixing seat 6, the dust cover 10 enclosing the gap between the right end of the cylinder body 1 and the fixing seat 6 to form an air cavity 15, a gas channel 13 being opened inside the fixing seat 6, an inner port of the gas channel 13 being connected to the air cavity 15, an outer port of the gas channel 13 facing the outside of the fixing seat 6, a muffler 14 being installed on the outer port of the gas channel 13.

[0024] Preferably, the outer port of the gas channel 13 is provided with a threaded inner surface, the inner end of the muffler 14 is provided with a threaded outer surface, and the inner end of the muffler 14 is threadedly fixedly installed at the outer port of the gas channel 13 .

[0025] Further preferably, the gas channel 13 includes an air channel 1 13-1 and an air channel 2 13-2, one end of the air channel 1 13-1 crosses and penetrates with one end of the air channel 2 13-2, the other end of the air channel 1 13-1 is connected to the air cavity 15, and the other end of the air channel 2 13-2 faces the outside of the fixing seat 6 and is installed with the muffler 14.

[0026] Further preferably, the fixing seat 6 has a connecting plate 6-1 extending to the right side, the connecting plate 6-1 has a mounting hole that passes through the plate body, the grinding sub-holder 11 is fixedly mounted on the connecting plate 6-1 by a bolt assembly, and a side port of the airway 2 13-2 away from the airway 1 13-1 is located on a side edge surface of the connecting plate 6-1.

[0027] Further preferably, it also includes a fixed sleeve 5, the left end of which is embedded and fixed on the right end of the cylinder body 1, and the left end of the dust cover 10 is sleeved and fixed on the outer side of the right end of the fixed sleeve 5, and the right end is sleeved and fixed on the outer peripheral side of the fixed seat 6.

[0028] Further preferably, the dust cover 10 is a bellows.

[0029] Further preferably, a sealing tube 4 is embedded in the cylinder body 1, and the piston rod 3 is sealingly and slidingly matched with the inner wall of the sealing tube 4. A screw sleeve 9 is sleeved in the annular groove in the middle part of the outer side of the piston rod 3, and the interior of the piston rod 3 has a cavity opening toward the left side. A piston pull rod 7 and a return spring 8 sleeved on the outside of the piston pull rod 7 are installed inside the cavity of the piston rod 3, and the left end of the return spring 8 abuts against a spring retaining ring 1 6-2 fixed at the left end of the piston pull rod 7, and the right end abuts against a spring retaining ring 2 6-3 fixed at the right end of the piston pull rod 7.

[0030] The utility model discloses a tread cleaner for easily replacing a muffler. The muffler is installed at the outer port position of the gas passage. When the muffler fails and needs to be repaired or replaced, the muffler can be directly removed for repair or replacement without removing the dust cover, thereby greatly reducing the maintenance workload of the muffler and significantly improving the maintenance efficiency of the muffler. The overall structural design is simple, and there is no need to make a lot of changes to the original structure of the tread cleaner, so the utility model has strong practicality.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A tread cleaner with an easily replaceable muffler, comprising a cylinder body (1), a cylinder head (2) being fixed at the left end of the cylinder body (1), a piston rod (3) being slidably mounted inside the cylinder body (1), a fixing seat (6) extending to the outside of the cylinder body (1) being fixed at the right end of the piston rod (3), a grinding child holder (11) being mounted on the right side of the fixing seat (6), a grinding child (12) being mounted on the grinding child holder (11), a dust cover (10) being arranged between the right end of the cylinder body (1) and the fixing seat (6), the dust cover (10) enclosing the gap between the right end of the cylinder body (1) and the fixing seat (6) to form an air cavity (15), characterized in that: A gas passage (13) is provided inside the fixing seat (6), an inner port of the gas passage (13) is connected to the gas cavity (15), an outer port of the gas passage (13) faces the outside of the fixing seat (6), and a muffler (14) is installed on the outer port of the gas passage (13).

2. The tread cleaner with an easily replaceable muffler as claimed in claim 1, characterized in that: The outer port of the gas channel (13) is provided with a threaded inner surface, the inner end of the muffler (14) is provided with a threaded outer surface, and the inner end of the muffler (14) is threadedly fixedly installed at the outer port of the gas channel (13).

3. The tread cleaner with an easily replaceable muffler as claimed in claim 2, characterized in that: The gas channel (13) includes an air channel 1 (13-1) and an air channel 2 (13-2), one end of the air channel 1 (13-1) crosses and penetrates with one end of the air channel 2 (13-2), the other end of the air channel 1 (13-1) is connected to the air cavity (15), and the other end of the air channel 2 (13-2) faces the outside of the fixing seat (6) and is installed with the muffler (14).

4. The tread cleaner with an easily replaceable muffler as claimed in claim 3, characterized in that: The fixing seat (6) has a connecting plate (6-1) extending to the right side, and the connecting plate (6-1) has a mounting hole penetrating the plate body. The grinding sub-holder (11) is fixedly mounted on the connecting plate (6-1) by a bolt assembly, and a port on a side of the airway 2 (13-2) away from the airway 1 (13-1) is located on a side edge surface of the connecting plate (6-1).

5. The tread cleaner with an easily replaceable muffler as claimed in claim 4, characterized in that: It also includes a fixed sleeve (5), the left end of which is embedded and fixedly mounted on the right end of the cylinder body (1), and the left end of the dust cover (10) is sleeved and fixedly mounted on the outer side of the right end of the fixed sleeve (5), and the right end is sleeved and fixedly mounted on the outer peripheral side of the fixed seat (6).

6. The tread cleaner with an easily replaceable muffler as claimed in claim 5, characterized in that: The dust cover (10) is a bellows.

7. The tread cleaner with an easily replaceable muffler as claimed in claim 6, characterized in that: A sealing sleeve (4) is embedded in the cylinder body (1), and the piston rod (3) is sealingly slidably matched with the inner wall of the sealing sleeve (4). A screw sleeve (9) is sleeved in the annular groove in the middle of the outer side of the piston rod (3). The piston rod (3) has a cavity with an opening toward the left side. A piston pull rod (7) and a return spring (8) sleeved on the outside of the piston pull rod (7) are installed in the cavity of the piston rod (3). The left end of the return spring (8) abuts against a spring retaining ring 1 (6-2) fixed at the left end of the piston pull rod (7), and the right end abuts against a spring retaining ring 2 (6-3) fixed at the right end of the piston pull rod (7).

Images