Anti-bump vibration motor
By setting a support flange to enclose the motor housing and cover the eccentric block assembly in the vibratory motor, and by introducing lubricating oil into the bearing, the problem of spark generation in flammable and explosive environments is solved, thus achieving higher safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINXIANG HONGDA VIBRATION EQUIPMENT CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-24
AI Technical Summary
Existing vibratory motors are not thoroughly explosion-proofed in flammable and explosive environments, and are prone to generating sparks.
A support flange is provided at the connection between the stator structure and the end cover to seal the motor housing. The end cover covers the eccentric block assembly, and lubricating oil is introduced to the bearing through the lubrication oil passage to prevent sparks and splashing.
It effectively prevents the generation and splashing of sparks from the vibratory motor in flammable and explosive environments, thus improving safety.
Smart Images
Figure CN224555343U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vibration motor technology, specifically an explosion-proof vibration motor. Background Technology
[0002] A vibratory motor is a power device that converts rotational motion into periodic mechanical vibration. It generates centrifugal force when rotating through a built-in eccentric block assembly, which drives the entire equipment or related structures to vibrate continuously. It is widely used in mining, metallurgy, building materials, chemical, and food industries for material screening, conveying, compaction, and discharge.
[0003] Because vibratory motors vibrate continuously during operation, they are prone to generating sparks. In flammable and explosive environments, explosion-proof measures are required. Currently, the main approach is to add an explosion-proof enclosure to the outside, but this still poses a risk. Utility Model Content
[0004] The purpose of this invention is to provide an explosion-proof vibration motor to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof vibration motor, comprising:
[0006] Stator structure, end covers, rotor, rotor shaft, and junction box;
[0007] The stator structure has end caps on both sides of its outer wall, and a support flange is provided at the connection between the stator structure and the end caps. A rotor shaft is inserted between the end caps on both sides, and the rotor is mounted on the outer wall of the rotor shaft and located inside the stator structure. The junction box is connected to the outer wall of the stator structure.
[0008] Both ends of the rotor shaft pass through the end caps on both sides and extend to the outside of the end caps. Both ends of the rotor shaft are connected to an eccentric block assembly.
[0009] The end cap is equipped with a bearing assembly inside, which is sleeved on the outer wall of the rotor shaft.
[0010] Preferably, an end cover is provided on the outer side of the end cap, and the rotor shaft is located on the inner side of the end cover.
[0011] Preferably, the eccentric block assembly includes an outer eccentric block, an inner eccentric block, and a flat key. The outer eccentric block and the inner eccentric block are respectively sleeved on the outer side and inner side of the outer wall end of the rotor shaft. The flat key is embedded between the inner wall of the inner eccentric block and the outer wall of the rotor shaft. A shaft retaining ring is embedded on the outer wall end of the rotor shaft, and the shaft retaining ring is supported on the outer wall of the outer eccentric block.
[0012] Preferably, the bearing assembly includes a bearing and a bearing inner cover, both of which are fitted onto the outer wall of the rotor shaft, and the outer ring of the bearing is connected to the inner wall of the end cover.
[0013] Preferably, the end cap has a lubrication oil passage on its body, one end of which corresponds to the side of the bearing, and the other end of which is provided with an end cap.
[0014] Preferably, the end cover and the end cap are connected by hexagonal bolts, and the stator structure is provided with lifting rings on the outside.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This design incorporates a support flange at the connection between the stator structure and the end cover to seal the stator structure and the end cover. The stator structure includes the stator and the motor housing located outside the stator. The support flange is located at the connection between the motor housing and the end cover. By engaging the support flange, the interior is better sealed, preventing sparks generated by wear from splashing outwards.
[0017] By setting up a lubrication circuit, lubricating oil can be supplied to the bearing, which lubricates the rotating bearing and prevents sparks from being generated.
[0018] The outer side is covered by an end cap to prevent sparks from flying. Attached Figure Description
[0019] Figure 1 This is a cross-sectional view of the upper part of the present invention;
[0020] Figure 2 This is a side view of the structure of this utility model.
[0021] In the diagram: 1. Shaft retaining ring; 2. Outer eccentric block; 3. Flat key; 4. Inner eccentric block; 5. Bearing; 6. End cover; 7. End cap; 8. Junction box; 9. Stator structure; 10. Rotor; 11. End cover; 12. Bearing inner cover; 13. Hex bolt; 14. Lifting eye. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] Example 1:
[0025] Please see Figure 1-2 This utility model provides a technical solution: an explosion-proof vibration motor, comprising: a stator structure 9, an end cover 11, a rotor 10, a rotor shaft, and a junction box 8;
[0026] The stator structure 9 has end caps 11 on both sides of its outer wall. A supporting flange is provided at the connection between the stator structure 9 and the end caps 11. A rotor shaft is inserted between the end caps 11 on both sides. The rotor 10 is mounted on the outer wall of the rotor shaft and is located inside the stator structure 9. The junction box 8 is connected to the outer wall of the stator structure 9. The two ends of the rotor shaft pass through the end caps 11 on both sides and extend to the outside of the end caps 11. An eccentric block assembly is connected to both ends of the rotor shaft. A bearing assembly is provided inside the end cap 11 and is sleeved on the outer wall of the rotor shaft.
[0027] Analysis of the above content: Junction box 8 supplies power to the motor. The stator structure 9 here includes the external motor housing and the stator coil located inside the motor housing. The rotor 10 is a permanent magnet (existing motor structure, which will not be described in detail here). After the rotor shaft rotates, it can drive the eccentric block assembly to rotate, resulting in unbalanced forces and vibration.
[0028] A support flange is provided at the connection between the stator structure 9 and the end cover 11 to seal the inside of the motor housing.
[0029] Example 2:
[0030] Please see Figure 1-2 The present invention provides a technical solution: an end cover 6 is provided on the outer side of the end cover 11, and the rotor shaft is located on the inner side of the end cover 6.
[0031] Analysis of the above content: End cover 6 covers the outside of the eccentric block assembly, which can both enclose the eccentric block assembly and prevent sparks from splashing during the rotation of the eccentric block assembly.
[0032] Example 3:
[0033] Please see Figure 1-2The present invention provides a technical solution: the eccentric block assembly includes an outer eccentric block 2, an inner eccentric block 4, and a flat key 3. The outer eccentric block 2 and the inner eccentric block 4 are respectively sleeved on the outer side and inner side of the outer wall end of the rotor shaft. The flat key 3 is embedded between the inner wall of the inner eccentric block 4 and the outer wall of the rotor shaft. A shaft retaining ring 1 is embedded on the outer wall end of the rotor shaft. The shaft retaining ring 1 is supported on the outer wall of the outer eccentric block 2.
[0034] Analysis of the above content: The inner eccentric block 4 is connected to the outer wall of the rotor shaft through the flat key 3. The inner eccentric block 4 and the rotor shaft will not rotate relative to each other. An outer eccentric block 2 is set on the outer side. Both the outer eccentric block 2 and the inner eccentric block 4 are fixed to the outer wall of the rotor shaft and will not rotate relative to each other.
[0035] Example 4:
[0036] Please see Figure 1-2 This utility model provides a technical solution: the bearing assembly includes a bearing 5 and a bearing inner cover 12, both of which are sleeved on the outer wall of the rotor shaft. The outer ring of the bearing 5 is connected to the inner wall of the end cover 11. A lubrication oil passage is provided on the body of the end cover 11, one end of which corresponds to the side of the bearing 5, and the other end of which is provided with an end cap 7.
[0037] Analysis of the above content: Lubricating oil can be added to bearing 5 to lubricate bearing 5, and at the same time, to prevent sparks from being generated by bearing 5 due to rotational wear.
[0038] Example 5:
[0039] Please see Figure 1-2 The present invention provides a technical solution: the end cover 6 and the end cap 11 are connected by hexagonal bolts 13, and the stator structure 9 is provided with a lifting ring 14 on the outside.
[0040] Analysis of the above content: The setting of lifting ring 14 facilitates the lifting and moving of this solution.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An explosion-proof vibration motor, characterized in that, include: Stator structure (9), end cover (11), rotor (10), rotor shaft and junction box (8); The stator structure (9) has end caps (11) on both sides of its outer wall. A support flange is provided at the connection between the stator structure (9) and the end caps (11). A rotor shaft is inserted between the end caps (11) on both sides. The rotor (10) is mounted on the outer wall of the rotor shaft and is located inside the stator structure (9). The junction box (8) is connected to the outer wall of the stator structure (9). The rotor shaft has two ends that pass through the end caps (11) on both sides and extend to the outside of the end caps (11). Both ends of the rotor shaft are connected to eccentric block assemblies. The end cap (11) is provided with a bearing assembly inside, which is sleeved on the outer wall of the rotor shaft.
2. The explosion-proof vibration motor according to claim 1, characterized in that: An end cover (6) is provided on the outside of the end cover (11), and the rotor shaft is located on the inside of the end cover (6).
3. The explosion-proof vibration motor according to claim 1, characterized in that: The eccentric block assembly includes an outer eccentric block (2), an inner eccentric block (4), and a flat key (3). The outer eccentric block (2) and the inner eccentric block (4) are respectively sleeved on the outer side and inner side of the outer wall end of the rotor shaft. The flat key (3) is embedded between the inner wall of the inner eccentric block (4) and the outer wall of the rotor shaft. A shaft retaining ring (1) is embedded on the outer wall end of the rotor shaft. The shaft retaining ring (1) is supported on the outer wall of the outer eccentric block (2).
4. The explosion-proof vibration motor according to claim 1, characterized in that: The bearing assembly includes a bearing (5) and a bearing inner cover (12), both of which are fitted onto the outer wall of the rotor shaft. The outer ring of the bearing (5) is connected to the inner wall of the end cover (11).
5. The explosion-proof vibration motor according to claim 4, characterized in that: The end cap (11) has a lubrication oil passage on its body. One end of the lubrication oil passage corresponds to the side of the bearing (5), and the other end of the lubrication oil passage is provided with an end cap (7).
6. The explosion-proof vibration motor according to claim 2, characterized in that: The end cover (6) and the end cap (11) are connected by hexagonal bolts (13), and the stator structure (9) is provided with a lifting ring (14) on the outside.