Oil injection system for drying drum gear ring

Abstract

The oil injection system for the tooth ring of a drying roller comprises a tooth ring, a driving gear and a driving device, the driving gear is arranged at the lower part of the tooth ring and engaged with the tooth ring, the driving device is connected with the driving gear, further comprises a tooth ring cover and an oil injection pipe, the tooth ring cover is matched and assembled on the tooth ring, the oil injection pipe is connected at the lower part of the side plate of the tooth ring cover, the lower end of the oil injection pipe is provided with a bend pipe, the bend pipe penetrates through the side plate and extends into the tooth ring cover and is opposite to the engaging part of the driving gear and the tooth ring; the lower part of the tooth ring cover is provided with an oil outlet, the driving gear is located in the oil outlet; the tooth ring cover is installed on the tooth ring, the tooth ring cover covering the tooth ring can effectively play a dustproof role, avoids that the material dust adheres to the tooth ring to aggravate the abrasion, meanwhile, the oil injection pipe penetrating into the engaging part of the tooth ring and the driving gear is arranged on the tooth ring cover, the engaging part can be conveniently sprayed with lubricating oil through the oil injection pipe, the convenience of the maintenance of the tooth ring is improved, and the stable operation of the roller drying is beneficial to be ensured.

Description

Technical Field

[0001] This utility model relates to the field of dryers, and in particular to an oil injection system for the toothed ring of a drying drum. Background Technology

[0002] The gear ring of a rotary drum dryer is a core component of the transmission system. It is typically installed on the outer side of the drum near the thrust rollers and support rollers. It transmits power from the drive unit to the drum through meshing with the pinion gear, driving the drum to rotate and dry the material. It also assists in drum positioning, ensuring stability and coaxiality during operation. For specific structure and principles, please refer to the drying drum disclosed in utility model patent CN202121710902.6. Currently, the gear ring in these rotary drum dryers is usually exposed, making it easy for material dust to adhere to its surface, causing accelerated wear. Furthermore, lubrication is currently typically achieved manually by applying or spraying lubricant to the meshing area between the gear ring and the pinion gear. However, continuously operating equipment requires lubrication replenishment every 8-12 hours. Frequent manual lubrication complicates the maintenance process, increases the risk of missed lubrication, and is detrimental to ensuring stable operation of the rotary drum dryer. Utility Model Content

[0003] To solve the above problems, this utility model proposes an oil injection system for the toothed ring of a drying drum.

[0004] The technical solution of this utility model is: a drying drum gear ring oil injection system, including a gear ring, a drive gear and a drive device. The drive gear is located at the lower part of the gear ring and meshes with it. The drive device is connected to the drive gear and drives the drive gear to rotate. It also includes a gear ring cover and an oil injection pipe. The gear ring cover is fitted onto the gear ring. The gear ring cover is generally circular. The oil injection pipe is connected to the lower part of the side plate of the gear ring cover. The lower end of the oil injection pipe is provided with a bend. The bend and the oil injection pipe are integrally bent and formed. The bend passes through the side plate and extends into the gear ring cover and is directly opposite the meshing part of the drive gear and the gear ring.

[0005] Preferably, the lower part of the gear ring cover is provided with an oil outlet, which is a square tube, and the drive gear is located inside the oil outlet.

[0006] Preferably, the support of the drive device is located below the oil outlet, and a collection tank is provided inside the support. One end of the bottom surface of the collection tank is provided with a discharge port, and a discharge pipe is connected to the discharge port.

[0007] Preferably, the toothed ring cover includes a semi-circular cover, an arc-shaped cover A, and an arc-shaped cover B. The semi-circular cover and the two arc-shaped covers have the same cross-sectional dimensions. The arc-shaped cover A and the arc-shaped cover B are joined together by flange plates to form a semi-circle. The two arc-shaped covers are connected to the two ends of the semi-circular cover by flange plates.

[0008] Preferably, the lower part of the semi-circular cover is provided with a right-angle shell, the bottom surface of the right-angle shell is a horizontal plane, and the oil outlet is set on an independent base shell. The base shell is connected to the right-angle shell and the semi-circular cover through a flange plate.

[0009] Preferably, the toothed ring cover has an observation port on its side, a cover plate is hinged to the observation port, and a latch is provided between the other side of the cover plate and the side plate.

[0010] Preferably, the oil injection pipe is equipped with a flow valve and a shut-off valve, and the toothed ring cover side plate is equipped with an ear plate with a through hole, and the oil injection pipe is fitted into the through hole for fixation.

[0011] Preferably, the drive device includes a motor, a reducer, and a coupling. The output end of the motor is connected to the input end of the reducer, and the reducer is connected to the axle of the drive gear through the coupling.

[0012] The beneficial technical effects of this utility model are: This invention features a gear ring cover installed on the gear ring. This gear cover effectively prevents dust from adhering to the gear ring and aggravating wear. At the same time, an oil injection pipe is provided on the gear ring cover, extending into the meshing part of the gear ring and the drive gear. The oil injection pipe allows for convenient spraying of lubricating oil into the meshing part, improving the convenience of gear ring maintenance and ensuring the stable operation of the drum dryer.

[0013] This invention features an oil outlet and a collection groove at the bottom of the gear ring cover. Excess lubricating oil on the gear ring can drip into the gear ring cover and slide from the oil outlet into the collection groove, which helps to keep the drive area of ​​the drying drum clean. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 yes Figure 1 A schematic diagram of the side view structure; Figure 3 yes Figure 2 A schematic diagram of the AA-direction cross-section structure; Figure 4 yes Figure 3 A magnified view of a portion of the image; Figure 5 This is a schematic diagram of the three-dimensional structure after some of the side plates at the bottom of the gear ring cover have been removed. Figure 6 yes Figure 5 A magnified view of a portion of the image.

[0015] In the diagram, 11. Gear ring, 111. Oil outlet, 12. Drive gear, 13. Gear ring cover, 131. Semi-circular cover, 132. Arc-shaped cover A, 133. Arc-shaped cover B, 134. Right-angle housing, 135. Observation port, 14. Oil injection pipe, 141. Flow valve, 142. Bend, 15. Collection tank, 161. Motor, 162. Reducer, 163. Coupling. Detailed Implementation

[0016] Example 1, see appendix Figure 1-6 A drying drum gear ring oil injection system includes a gear ring 11, a drive gear 12 and a drive device. The drive device includes a motor 161, a reducer 162 and a coupling 163. The reducer is connected to the axle of the drive gear through the coupling. The driving gear 12 is located at the lower part of the gear ring 11 and meshes with it. The driving device is connected to the driving gear 12 and drives the driving gear 12 to rotate. The driving gear meshes with and drives the gear ring to rotate. The gear ring 11 also includes a gear ring 11 cover 13 and an oil injection pipe 14. The gear ring cover is fitted onto the gear ring. There is a certain gap between the gear ring 11 cover 13 and the gear ring 11 so that the lubricating oil dripping from the gear ring 11 can flow into the gear ring cover. The oil injection pipe 14 is connected to the lower part of the side plate of the gear ring cover. The lower end of the oil injection pipe 14 is provided with a bend 142. The bend is L-shaped and extends through the side plate into the gear ring cover and is directly opposite the meshing part of the driving gear and the gear ring. There is a certain gap between the bend 142 and the meshing part to avoid interference between the gear ring 11 or the driving gear 12 and the bend 142.

[0017] The lower part of the gear ring 11 cover 13 is provided with an oil outlet 111, the drive gear 12 is located inside the oil outlet 111, the bracket of the drive device is located below the oil outlet, and a collection groove 15 is provided inside the bracket to collect the lubricating oil flowing out of the oil outlet 111 in real time.

[0018] The gear ring 11 is provided with an observation port 135 on the side of the cover 13. A cover plate is hinged to the observation port. The observation port 135 is exposed when the cover plate is opened, and the lubrication status of the gear ring 11 can be observed through the observation port.

[0019] The oil injection pipe 14 is equipped with a flow valve 141 and a shut-off valve. The flow valve 141 can accurately display the amount of oil injected, improve the accuracy of oil injection and lubrication, and avoid the waste of lubricating oil. The outer end of the oil injection pipe 14 is connected to the oil tank or oil sump of lubricating oil. The lubricating oil is pumped into the oil injection pipe 14 by a pump. The cut-off valve is used to open or close the oil injection pipe 14.

[0020] When the drying drum gear ring 11 oil injection system is working, the gear ring 11 rotates synchronously with the drum. The gear cover covers the gear ring 11 to prevent dust from adhering to the gear ring and aggravating wear. When the gear ring needs additional lubricating oil, lubricating oil is sprayed onto the meshing part through the oil injection pipe 14, which improves the convenience of maintenance of the gear ring 11 and ensures the stable operation of the drum drying. During the operation of the gear ring 11, the lubricating oil is squeezed and some of it drips into the gear ring 11 cover 13 and slides from the oil outlet 111 into the collection tank 15, keeping the driving area of ​​the drying drum clean.

[0021] Example 2, see appendix Figure 1-3 This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that the gear ring 11 cover 13 includes a semi-circular cover 131, an arc-shaped cover A 132, and an arc-shaped cover B 133. Right-angle supports are provided on both sides of the semi-circular cover. The semi-circular cover 131 is fixedly connected to the frame of the dryer through the two right-angle supports. Lifting lugs are provided at both ends of the arc-shaped cover A 132 and arc-shaped cover B 133, which can stably suspend the arc-shaped covers for movement and assembly. The arc-shaped cover A 132 and arc-shaped cover B 133 are joined together by flange plates to form a semi-circle. The two arc-shaped covers are connected to the two ends of the semi-circular cover 131 through flange plates. This gear ring 11 cover 13 consists of three covers, forming a modular combination structure, which facilitates convenient assembly and disassembly of the three parts.

[0022] A right-angled shell 134 is provided on the lower side of the semi-circular cover 131. The bottom surface of the right-angled shell is a horizontal plane. The right-angled shell 134 forms a horizontal support for the lower part of the gear ring 11 cover 13, thereby improving the assembly stability of the gear ring cover.

Claims

1. A drying drum gear ring oil injection system, comprising a gear ring, a drive gear, and a drive device, wherein the drive gear is disposed at the lower part of the gear ring and meshes with it, and the drive device is connected to the drive gear, characterized in that: It also includes a gear ring cover and an oil injection pipe. The gear ring cover is fitted onto the gear ring, and the oil injection pipe is connected to the lower part of the side plate of the gear ring cover. The lower end of the oil injection pipe is provided with a bend, which passes through the side plate and extends into the gear ring cover, facing the meshing part of the drive gear and the gear ring.

2. The drying drum gear ring oil injection system according to claim 1, characterized in that: The lower part of the gear ring cover is provided with an oil outlet, and the drive gear is located inside the oil outlet.

3. The drying drum gear ring oil injection system according to claim 2, characterized in that: The support of the drive device is located below the oil outlet, and a collection trough is provided inside the support.

4. The drying drum gear ring oil injection system according to claim 1, characterized in that: The toothed ring cover includes a semi-circular cover, an arc-shaped cover A, and an arc-shaped cover B. The arc-shaped cover A and the arc-shaped cover B are joined together by flange plates to form a semi-circle, and the two arc-shaped covers are connected to the two ends of the semi-circular cover by flange plates.

5. The drying drum gear ring oil injection system according to claim 4, characterized in that: The lower part of the semi-circular cover is provided with a right-angled shell, and the bottom surface of the right-angled shell is a horizontal plane.

6. The drying drum gear ring oil injection system according to claim 1, characterized in that: The gear ring cover has an observation port on its side, and a cover plate is hinged to the observation port.

7. The drying drum gear ring oil injection system according to claim 1, characterized in that: The oil injection pipe is equipped with a flow valve and a shut-off valve.

8. The drying drum gear ring oil injection system according to claim 1, characterized in that: The drive device includes a motor, a reducer, and a coupling. The reducer is connected to the axle of the drive gear via the coupling.

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