Moisture removal air door mounting structure of airflow cut-tobacco dryer

Abstract

The utility model discloses an airflow cut-tobacco dryer moisture removal air door installation structure which comprises a moisture removal air pipe, a moisture removal air door is arranged in the moisture removal air pipe, the upper end of the moisture removal air door is fixed on an air door installation shaft, the air door installation shaft is rotatably installed on the moisture removal air pipe through an installation structure, and the installation structure comprises a first installation assembly. The free end of the air door mounting shaft is rotationally mounted on the left side of the moisture removal air pipe through a first mounting assembly, the first mounting assembly comprises a bearing seat, a first bearing and a bearing seat mounting sleeve, the bearing seat mounting sleeve is fixedly mounted outside the left side wall of the moisture removal air pipe, and the bearing seat is detachably mounted in a mounting cavity of the bearing seat mounting sleeve; a first bearing is embedded in the bearing seat, and the free end of the air door mounting shaft leftwards penetrates out of a penetrating hole in the left side wall of the moisture removal air pipe and then is tightly matched with an inner hole of the first bearing. Compared with the prior art, the air door mounting shaft has the advantages that the free end of the air door mounting shaft is rotatably supported, and the air door mounting shaft is guaranteed to rotate smoothly without clamping stagnation.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette processing equipment, in particular to an installation structure of a moisture exhaust door of an airflow tobacco drying machine. Background Art

[0002] The airflow wire drying machine includes a dehumidification air duct, and the front and rear ends of the dehumidification air duct are respectively connected to the dehumidification pipe by flange connection. A dehumidification damper that can be flipped is arranged in the dehumidification air duct, and the upper end of the dehumidification damper is fixed on the damper mounting shaft, one end of the damper mounting shaft is the driving end, and the other end is the free end, and the driving end of the damper mounting shaft is rotatably mounted on the side wall of the dehumidification air duct through a sliding bearing, and the free end of the damper mounting shaft passes through the side wall of the dehumidification air duct and is gap-matched with the inner hole of the mounting sleeve arranged outside the side wall of the dehumidification air duct, and there is no structure for rotationally supporting the free end of the damper mounting shaft, and after long-term use, the free end of the damper mounting shaft is prone to dirt accumulation and jamming, and the large friction resistance makes it difficult to rotate the damper mounting shaft, thereby making the damper opening adjustment control inaccurate, and when it is necessary to clean or replace the bearing, the operation steps are cumbersome and difficult to maintain and replace. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a moisture removal damper installation structure for an airflow tobacco drying machine to achieve rotational support for the free end of the damper installation shaft, to ensure that the damper installation shaft rotates smoothly without getting stuck, and to enable accurate positioning of the damper opening.

[0004] The utility model is realized by the following technical solutions:

[0005] A dehumidification air door installation structure for an air flow wire drying machine, the air flow wire drying machine includes a dehumidification air duct, a dehumidification air door that can be flipped is arranged in the dehumidification air duct, the upper end of the dehumidification air door is fixed on the air door installation shaft, the air door installation shaft is rotatably installed on the dehumidification air duct through the installation structure, the left end of the air door installation shaft is a free end, and the right end is a driving end, the installation structure includes a first installation assembly, the free end of the air door installation shaft is rotatably installed on the left side of the dehumidification air duct through the first installation assembly, the first installation assembly includes a bearing seat, a first bearing, and a bearing seat installation sleeve, the bearing seat installation sleeve is fixedly installed outside the left side wall of the dehumidification air duct, the bearing seat installation sleeve is provided with an installation cavity open on the left side, the bearing seat is detachably installed in the installation cavity of the bearing seat installation sleeve, the first bearing is embedded in the bearing seat, and the free end of the air door installation shaft passes through the through hole of the left side wall of the dehumidification air duct to the left and is tightly fitted with the inner hole of the first bearing.

[0006] As a preferred embodiment of the above-mentioned mounting structure, the mounting structure also includes a second mounting component, and the driving end of the damper mounting shaft is rotatably mounted on the right side of the dehumidification air duct through the second mounting structure. The second mounting component includes a sliding bearing and a sliding bearing seat. The sliding bearing seat is fixedly mounted outside the right side wall of the dehumidification air duct, and the sliding bearing is embedded in the sliding bearing seat. The driving end of the damper mounting shaft passes through the through hole on the right side wall of the dehumidification air duct to the right and then fits tightly with the inner hole of the sliding bearing.

[0007] As a preferred solution of the above-mentioned installation structure, the bearing seat and the installation cavity of the bearing seat installation sleeve are threadedly connected.

[0008] As a preferred solution for the above-mentioned mounting structure, the bearing seat is provided with an internal channel with an open left end, the first bearing is embedded in the internal channel of the bearing seat, and the axial limitation of the bearing in the bearing seat is achieved by a retaining spring installed in the internal channel of the bearing seat, and the left end of the internal channel of the bearing seat is sealed by a rotating cover of the bearing seat.

[0009] As a preferred solution of the above-mentioned installation structure, the first bearing is a deep groove ball bearing.

[0010] As a preferred solution of the above-mentioned installation structure, the right end of the sliding bearing seat is threadedly connected with a plug cover, the right end of the sliding bearing is limited by the plug cover, and a sealing gasket is provided between the left end of the sliding bearing and the right side wall of the moisture exhaust duct.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The utility model provides a dehumidification damper installation structure for an air flow tobacco drying machine, wherein a first installation component is arranged at the free end of the damper installation shaft, and a first bearing of the first installation component is used to realize rotational support for the free end of the damper installation shaft, thereby ensuring smooth rotation of the damper installation shaft without jamming, so that the damper opening is accurately positioned; at the same time, the installation structure is convenient and quick to disassemble and assemble, and is conducive to maintenance or replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional assembly diagram of the utility model.

[0014] Figure 2 It is a three-dimensional exploded view of the utility model.

[0015] Numbers in the figure: 1 dehumidification duct; 2 dehumidification air door; 3 mounting hole; 4 air door mounting shaft; 5 thread hole; 6 mounting screw; 7 bearing seat; 8 first bearing; 9 bearing seat mounting sleeve; 10 mounting cavity; 11 internal channel; 12 retaining spring; 13 bearing seat screw cover; 14 sliding bearing; 15 plug screw cover; 16 sealing gasket; 17 top cover. DETAILED DESCRIPTION

[0016] The following is a detailed description of an embodiment of the utility model. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0017] See also Figure 1 to Figure 2 The present embodiment discloses a dehumidification door installation structure of an airflow tofu drying machine, the airflow tofu drying machine comprises a dehumidification air duct 1, a dehumidification air duct 2 which can be turned over is arranged in the dehumidification air duct 1, and the top of the dehumidification air duct 1 is sealed by a top cover 17 at the position of the dehumidification air duct 2. The upper end of the dehumidification air duct 2 is fixedly sleeved on the air door installation shaft 4 through the installation hole 3, and the air door installation shaft 4 is provided with three thread holes 5. Three installation screws 6 are respectively passed through the dehumidification air door 2 and tightened in the three thread holes 5 of the air door installation shaft 4, so as to realize the fixed installation of the dehumidification air door 2 and the air door installation shaft 4. The damper mounting shaft 4 is rotatably mounted on the dehumidification air duct 1 through the mounting structure. The left end of the damper mounting shaft 4 is a free end and the right end is a driving end. The mounting structure includes a first mounting assembly. The free end of the damper mounting shaft 4 is rotatably mounted on the left side of the dehumidification air duct 1 through the first mounting assembly. The first mounting assembly includes a bearing seat 7, a first bearing 8, and a bearing seat mounting sleeve 9. The bearing seat mounting sleeve 9 is fixedly mounted on the outside of the left side wall of the dehumidification air duct 1 by welding. The bearing seat mounting sleeve 9 is provided with a mounting cavity 10 open on the left side. The bearing seat 7 is detachably mounted in the mounting cavity 10 of the bearing seat mounting sleeve 9. The bearing seat 7 and the bearing seat mounting sleeve 9 The first bearing 8 is embedded in the bearing seat 7, and an internal channel 11 with an open left end is opened on the bearing seat 7. The first bearing 8 is a deep groove ball bearing. The first bearing 8 is embedded in the internal channel 11 of the bearing seat 7, and the axial limitation of the bearing in the bearing seat 7 is realized by a retaining ring 12 installed in the internal channel 11 of the bearing seat 7. The left end of the internal channel 11 of the bearing seat 7 is blocked by a bearing seat screw cover 13, and the bearing seat screw cover 13 and the internal channel 11 of the bearing seat 7 are screwed tightly; the free end of the damper mounting shaft 4 passes through the through hole of the left side wall of the dehumidification air duct 1 to the left and is tightly matched with the inner hole of the first bearing 8.

[0018] The mounting structure also includes a second mounting assembly. The driving end of the damper mounting shaft 4 is rotatably mounted on the right side of the dehumidification air duct 1 through the second mounting structure. The second mounting assembly includes a sliding bearing 14 and a sliding bearing seat. The sliding bearing seat is fixedly mounted outside the right side wall of the dehumidification air duct 1 by welding. The sliding bearing 14 is embedded in the sliding bearing seat. The right end of the sliding bearing seat is threadedly connected with a plug screw cap 15. The right end of the sliding bearing 14 is limited by the plug screw cap 15. A sealing gasket 16 is provided between the left end of the sliding bearing 14 and the right side wall of the dehumidification air duct 1. The driving end of the damper mounting shaft 4 passes through the perforation of the right side wall of the dehumidification air duct 1 to the right and is tightly matched with the inner hole of the sliding bearing 14. Among them, the sliding bearing 14 adopts a graphite sliding bearing 14.

[0019] The installation structure provided in this embodiment adds a first installation component to the free end of the damper installation shaft 4, and the first bearing 8 of the first installation component realizes the rotation support of the free end of the damper installation shaft 4, which ensures that the damper installation shaft 4 rotates smoothly without jamming, so that the damper opening is accurately positioned; at the same time, in the first installation component, the bearing seat 7 and the bearing seat installation sleeve 9 are threadedly connected. When the first bearing 8 needs to be cleaned or replaced, it is only necessary to unscrew the bearing seat 7 from the bearing seat installation sleeve 9, and then screw it on in the opposite direction after cleaning or replacement; disassembly and assembly are convenient and quick, which is conducive to maintenance or replacement.

[0020] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An airflow dryer moisture exhaust door installation structure, the airflow dryer comprises a moisture exhaust air duct, a reversible moisture exhaust air door is arranged in the moisture exhaust air duct, the upper end of the moisture exhaust air door is fixed on the air door installation shaft, the air door installation shaft is rotatably installed on the moisture exhaust air duct through the installation structure, the left end of the air door installation shaft is a free end, and the right end is a driving end, characterized in that: The mounting structure includes a first mounting component, and the free end of the damper mounting shaft is rotatably mounted on the left side of the dehumidification air duct through the first mounting component. The first mounting component includes a bearing seat, a first bearing, and a bearing seat mounting sleeve. The bearing seat mounting sleeve is fixedly mounted outside the left side wall of the dehumidification air duct, and the bearing seat mounting sleeve is provided with a mounting cavity open on the left side. The bearing seat is detachably mounted in the mounting cavity of the bearing seat mounting sleeve, and the first bearing is embedded in the bearing seat. The free end of the damper mounting shaft passes through the through hole of the left side wall of the dehumidification air duct to the left and is tightly fitted with the inner hole of the first bearing.

2. The moisture exhaust door installation structure of the airflow tofu drying machine according to claim 1, characterized in that: The mounting structure also includes a second mounting component. The driving end of the damper mounting shaft is rotatably mounted on the right side of the dehumidification air duct through the second mounting structure. The second mounting component includes a sliding bearing and a sliding bearing seat. The sliding bearing seat is fixedly mounted outside the right side wall of the dehumidification air duct. The sliding bearing is embedded in the sliding bearing seat. The driving end of the damper mounting shaft passes through the through hole on the right side wall of the dehumidification air duct to the right and fits tightly with the inner hole of the sliding bearing.

3. The moisture exhaust door installation structure of the airflow tofu drying machine according to claim 1, characterized in that: The bearing seat is threadedly connected to the mounting cavity of the bearing seat mounting sleeve.

4. The moisture exhaust door installation structure of the airflow tofu drying machine according to claim 1, characterized in that: The bearing seat is provided with an internal channel with an open left end, the first bearing is embedded in the internal channel of the bearing seat, and the axial limitation of the bearing in the bearing seat is achieved by a retaining ring installed in the internal channel of the bearing seat, and the left end of the internal channel of the bearing seat is sealed by a rotating cover of the bearing seat.

5. The moisture exhaust door installation structure of the airflow tofu drying machine according to claim 1, characterized in that: The first bearing is a deep groove ball bearing.

6. The moisture exhaust door installation structure of the airflow tofu drying machine according to claim 2, characterized in that: The right end of the sliding bearing seat is threadedly connected with a plug and a screw cap, and the right end of the sliding bearing is limited by the plug and the screw cap. A sealing gasket is provided between the left end of the sliding bearing and the right side wall of the moisture exhaust duct.

Images