Sliding friction connecting device for feed port of composite sieve

Abstract

The utility model discloses a sliding friction connecting device for a feeding port of a composite sieve, which comprises a blanking fixed connecting pipe, a feeding fixed connecting pipe, a sliding blanking pipe assembly, a sliding plate and a wear-resisting plate assembly, and the upper end of the blanking fixed connecting pipe is connected with an outlet of an external feeding device. The lower end of the discharging fixed connecting pipe is connected with a sliding discharging pipe assembly through a flange ring, the lower end of the sliding discharging pipe assembly is located in the feeding fixed connecting pipe, the inner diameter of the feeding fixed connecting pipe is larger than the outer diameter of the sliding discharging pipe assembly, and the lower end of the feeding fixed connecting pipe is connected with a feeding port of the composite screen. A wear-resisting plate assembly is arranged on the outer side of the upper end of the feeding fixed connecting pipe, and a sliding plate for sealing the upper surface of the wear-resisting plate assembly in an attached mode is arranged on the outer side of the sliding discharging pipe assembly, so that the composite screen and the feeding machine flexible connection frequency can be effectively prevented from being damaged, and the device is not prone to being damaged and long in service life; and compared with common flexible connection, the sealing effect is not reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of composite screens, in particular to a composite screen feed inlet sliding friction connection device. Background Art

[0002] As a vibrating machine, the rotary vibrating screen is widely used in various industries such as chemical industry, metallurgy, ceramic abrasives, food, pharmaceuticals, papermaking, etc. At present, the rotary vibrating screen needs to be used for a long time, so a feeder is needed for feeding, and the discharge port of the feeder is connected to the upper inlet of the compound rotary vibrating screen through a soft connection. The feeder is stationary, and the inlet of the compound rotary vibrating screen needs to be shaken back and forth, so the soft connection is easily damaged and has a short service life. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a sliding friction connection device for the feed port of a composite screen. The device has a simple structure and is easy to operate. It can effectively prevent the frequent damage of the soft connection between the composite screen and the feeder, making the device not easy to be damaged and having a long service life. Moreover, the sealing effect is not reduced compared with ordinary soft connections, and the problems in the background technology can be effectively solved.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sliding friction connection device for the feed port of a composite screen, comprising a fixed connection pipe for feeding, a fixed connection pipe for feeding, a sliding feeding pipe assembly, a sliding plate and a wear-resistant plate assembly, the upper end of the fixed connection pipe for feeding is connected to the outlet of an external feeding device, the lower end of the fixed connection pipe for feeding is connected to the sliding feeding pipe assembly through a flange ring, the lower end of the sliding feeding pipe assembly is located inside the fixed connection pipe for feeding, and the inner diameter of the fixed connection pipe for feeding is larger than the outer diameter of the sliding feeding pipe assembly, the lower end of the fixed connection pipe for feeding is connected to the feed port of the composite screen, a wear-resistant plate assembly is provided on the outer side of the upper end of the fixed connection pipe for feeding, and a sliding plate that fits and seals the upper surface of the wear-resistant plate assembly is provided on the outer side of the sliding feeding pipe assembly.

[0005] Furthermore, the sliding discharge pipe assembly includes an upper connecting short tube, the upper end of the upper connecting short tube is connected to the lower end of the fixed discharge connecting tube through a flange, the inner side of the upper connecting short tube is provided with a sliding tube that can slide up and down, the outer side of the lower end of the sliding tube is fixed with a material guide tube, a rubber flexible connection is provided between the outer side of the lower end of the upper connecting short tube and the upper end of the material guide tube, the upper and lower ends of the rubber flexible connection are respectively connected to the upper connecting short tube and the material guide tube through a throat clamp, and the sliding plate is fixed to the outer side of the material guide tube, the sliding plate, the material guide tube and the sliding tube can slide up and down by gravity, so that the lower surface of the sliding plate can always fit with the upper surface of the wear-resistant plate assembly, and the upper connecting short tube and the material guide tube can be sealed through the rubber flexible connection to prevent dust from overflowing.

[0006] Furthermore, the wear-resistant plate assembly includes a support ring fixed to the upper end of the feed fixed connecting pipe, and a polytetrafluoroethylene wear-resistant sleeve is provided on the upper surface of the support ring. The upper end of the polytetrafluoroethylene wear-resistant sleeve is higher than the upper surface of the support ring. The cross-section of the polytetrafluoroethylene wear-resistant sleeve is a U-shaped structure. Two seals are formed by the polytetrafluoroethylene wear-resistant sleeve with a U-shaped cross-section and the sliding plate, which can effectively prevent dust from escaping.

[0007] Compared with the prior art, the utility model has the following beneficial effects: the sliding plate, the material guide tube and the sliding tube can slide up and down by gravity, so that the lower surface of the sliding plate can always fit with the upper surface of the wear-resistant plate assembly, and the upper end connecting short tube and the material guide tube can be sealed by the rubber soft connection to prevent dust from overflowing, and two seals are formed with the polytetrafluoroethylene wear-resistant sleeve with a U-shaped cross-section and the sliding plate, so that dust can be effectively prevented from escaping, thereby replacing the original soft connection. The sliding friction connection device of the composite screen feed port has a simple structure and is easy to operate. It can effectively prevent the composite screen and the feeder soft connection from being frequently damaged, so that the device is not easy to be damaged and has a long service life, and the sealing effect is not reduced compared with the ordinary soft connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model;

[0009] Figure 2 It is a partial enlarged structural schematic diagram of the utility model.

[0010] In the figure: 1 a fixed connecting pipe for material discharge, 2 a fixed connecting pipe for material feed, 3 a sliding material discharge pipe assembly, 31 an upper end connecting short pipe, 32 a sliding pipe, 33 a material guide pipe, 34 a rubber flexible connection, 35 a throat hoop, 4 a sliding plate, 5 a wear-resistant plate assembly, 51 a support ring, and 52 a polytetrafluoroethylene wear-resistant sleeve. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0012] See also Figure 1-2The utility model provides a technical solution: a sliding friction connection device for a composite screen feed port, comprising a fixed feed connection pipe 1, a fixed feed connection pipe 2, a sliding feed pipe assembly 3, a sliding plate 4 and a wear-resistant plate assembly 5, wherein the upper end of the fixed feed connection pipe 1 is connected to the outlet of an external feeding device, the lower end of the fixed feed connection pipe 1 is connected to the sliding feed pipe assembly 3 through a flange ring, the lower end of the sliding feed pipe assembly 3 is located inside the fixed feed connection pipe 2, and the inner diameter of the fixed feed connection pipe 2 is larger than the outer diameter of the sliding feed pipe assembly 3, and the fixed feed connection pipe 2 is The lower end is connected to the feed port of the composite screen, a wear-resistant plate assembly 5 is provided on the outer side of the upper end of the fixed feed connection pipe 2, a sliding plate 4 is provided on the outer side of the sliding feed pipe assembly 3, and the sliding feed pipe assembly 3 includes an upper end connecting short tube 31, the upper end of the upper end connecting short tube 31 is connected to the lower end of the fixed feed connection pipe 1 through a flange, a sliding tube 32 that can slide up and down is provided on the inner side of the upper end connecting short tube 31, a guide tube 33 is fixed on the outer side of the lower end of the sliding tube 32, and a rubber is provided between the outer side of the lower end of the upper end connecting short tube 31 and the upper end of the guide tube 33. The upper and lower ends of the rubber flexible connection 34 are connected to the upper connecting short tube 31 and the guide tube 33 through the throat clamp 35, and the sliding plate 4 is fixed on the outside of the guide tube 33. The sliding plate 4, the guide tube 33 and the sliding tube 32 can slide up and down by gravity, so that the lower surface of the sliding plate 4 can always fit with the upper surface of the wear-resistant plate assembly 5. The upper connecting short tube 31 and the guide tube 33 can be sealed by the rubber flexible connection 34 to prevent dust from overflowing. The wear-resistant plate assembly 5 includes a support ring 51 fixed to the upper end of the feed fixed connection tube 2. The support ring A polytetrafluoroethylene wear-resistant sleeve 52 is provided on the upper surface of 51, and the upper end of the polytetrafluoroethylene wear-resistant sleeve 52 is higher than the upper surface of the support ring 51. The cross-section of the polytetrafluoroethylene wear-resistant sleeve 52 is a U-shaped structure. The polytetrafluoroethylene wear-resistant sleeve 52 with a U-shaped cross-section forms two seals with the sliding plate 4, which can effectively prevent dust from escaping. The sliding friction connection device of the composite screen feed port has a simple structure and is easy to operate. It can effectively prevent the composite screen and the feeder soft connection from being frequently damaged, so that the device is not easy to be damaged and has a long service life. Moreover, the sealing effect is not reduced compared with the ordinary soft connection.

[0013] When in use: the sliding plate 4, the guide tube 33 and the sliding tube 32 can slide up and down due to gravity, so that the lower surface of the sliding plate 4 can always fit with the upper surface of the wear-resistant plate assembly 5, and the upper end connecting short tube 31 and the guide tube 33 can be sealed by the rubber soft connection 34 to prevent dust from overflowing, and the polytetrafluoroethylene wear-resistant sleeve 52 with a U-shaped cross-section forms two seals with the sliding plate 4, which can effectively prevent dust from escaping, thereby replacing the original soft connection.

[0014] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sliding friction connection device for a composite screen feed port, comprising a feed fixed connection pipe (1), a feed fixed connection pipe (2), a sliding feed pipe assembly (3), a sliding plate (4) and a wear-resistant plate assembly (5), characterized in that: The upper end of the fixed material connection pipe (1) is connected to the outlet of the external feeding device, and the lower end of the fixed material connection pipe (1) is connected to the sliding material connection pipe assembly (3) via a flange ring. The lower end of the sliding material connection pipe assembly (3) is located inside the fixed material connection pipe (2), and the inner diameter of the fixed material connection pipe (2) is larger than the outer diameter of the sliding material connection pipe assembly (3). The lower end of the fixed material connection pipe (2) is connected to the feed port of the composite screen. A wear-resistant plate assembly (5) is provided on the outer side of the upper end of the fixed material connection pipe (2), and a sliding plate (4) is provided on the outer side of the sliding material connection pipe assembly (3) for sealing against the upper surface of the wear-resistant plate assembly (5).

2. The sliding friction connection device for the composite screen feed port according to claim 1, characterized in that: The sliding material discharge pipe assembly (3) comprises an upper connecting short pipe (31), the upper end of the upper connecting short pipe (31) being connected to the lower end of the fixed material discharge connecting pipe (1) via a flange, a sliding pipe (32) being provided on the inner side of the upper connecting short pipe (31) and being capable of sliding up and down, a material guide pipe (33) being fixed on the outer side of the lower end of the sliding pipe (32), a rubber flexible connection (34) being provided between the outer side of the lower end of the upper connecting short pipe (31) and the upper end of the material guide pipe (33), the upper end and the lower end of the rubber flexible connection (34) being connected to the upper connecting short pipe (31) and the material guide pipe (33) respectively via a throat clamp (35), and a sliding plate (4) being fixed on the outer side of the material guide pipe (33).

3. The sliding friction connection device for the composite screen feed port according to claim 1, characterized in that: The wear-resistant plate assembly (5) comprises a support ring (51) fixed to the upper end of the feed fixed connection pipe (2); a polytetrafluoroethylene wear-resistant sleeve (52) is provided on the upper surface of the support ring (51); the upper end of the polytetrafluoroethylene wear-resistant sleeve (52) is higher than the upper surface of the support ring (51); and the cross-section of the polytetrafluoroethylene wear-resistant sleeve (52) is a U-shaped structure.

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