Sealing device for shaft end of simply supported wheel of gate
By designing the guide assembly and sealing assembly in the gate, the water leakage and rust problems caused by the assembly accuracy deviation of the simple support wheel are solved, and better sealing and guide smoothness are achieved, and the service life is extended.
Patent Information
- Application Number
- CN202421044547.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The simple supporting wheels in existing gates have different assembly accuracy between the support shaft and the gate, resulting in increased wear and gap, which is prone to water leakage and rust, affecting rotational smoothness and stability.
A gate simple support wheel shaft end sealing device is designed, adopting a guide assembly and sealing assembly, including a limit simple support wheel, a follow-up disc, a ball bearing, a limit stop cover, an anti-displacement ring, a mechanical seal and a sealing ring. Improve sealing and guide smoothness through water conduction through holes and sealing rings to prevent rainwater erosion.
It effectively improves the sealing between the support shaft and the gate and the smoothness of the guide assembly, avoids rust of the ball bearing, and ensures the smoothness and service life of the limit simple support wheel.
Smart Images
Figure CN222334493U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water conservancy gates, in particular to a gate simply supported wheel shaft end sealing device. Background Art
[0002] The supports for plane gates and emergency gates are generally roller or slide type, and the wheel supports are generally simply supported wheel type. It can be seen that simply supported wheels are widely used in gates.
[0003] Most of the simply supported wheels in the gates in the prior art are fixed to the side plates of the gates through support shafts. Since the assembly accuracy deviation between the support shafts for the simply supported wheels and the gates is difficult to control, the gap between the support shafts for the simply supported wheels and the gates increases due to long-term wear, making it very easy for water to leak. Once water seepage occurs, the internal bearings are easily corroded, and the rusted bearings will affect the smoothness and stability of the rotation of the support shafts, thereby affecting the guiding effect of the simply supported wheels. Utility Model Content
[0004] The utility model aims to provide a gate simply supported wheel shaft end sealing device to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A gate simply supported wheel shaft end sealing device comprises a gate frame, a blocking gate plate, a worm gear hoist and a mounting plate, wherein the mounting plate is fixedly connected to the side of the gate frame, the worm gear hoist is mounted on the upper end surface of the gate frame, a blocking gate plate is mounted on the lower side of the gate frame, a guide assembly is arranged on the side of the blocking gate plate, and the guide assembly is used to improve the smoothness of lifting and lowering of the blocking gate plate, a sealing assembly is arranged between the guide assembly and the blocking gate plate, and the sealing assembly is used to improve the sealing between the guide assembly and the blocking gate plate.
[0007] Preferably, the guiding assembly includes a limited simply supported wheel, an anti-dropping nut, a support shaft and a follower plate. The left and right end surfaces of the blocking gate plate are symmetrically equipped with follower plates. The middle position of the left end surface of the follower plate is connected to a support shaft. The limited simply supported wheel is installed on the annular side surface of the support shaft, and the anti-dropping nut is installed on the left side of the annular side surface of the support shaft.
[0008] Preferably, the sealing assembly includes a limit stop cover, an anti-slip ring, a mechanical seal and a primary sealing ring. The limit stop cover is symmetrically installed on the left and right end surfaces of the blocking gate plate, the anti-slip ring is installed on the left end surface of the limit stop cover, the mechanical seal is embedded in the inner wall of the limit stop cover, and the primary sealing ring is embedded in the inner wall of the anti-slip ring.
[0009] Preferably, water conducting holes are symmetrically provided on the upper and lower sides and the front and rear sides inside the limit stop cover, and a sealing ring is installed on the right end surface of the limit stop cover, and the sealing ring is made of water-swellable rubber.
[0010] Preferably, a secondary sealing ring is embedded in the left end surface of the limit stop cover, and the secondary sealing ring matches the support shaft. The secondary sealing ring is made of carbon fiber packing, and the primary sealing ring is made of flexible graphite sealing ring.
[0011] Preferably, a ball bearing is installed on the annular side surface of the follower plate, the follower plate and the support shaft are an integrated structure, and an external thread is provided on the left side of the annular side surface of the support shaft.
[0012] Preferably, sealing strips are provided on the front and rear end surfaces of the blocking gate plate, and guide grooves are symmetrically provided on the left and right sides of the inner wall of the gate frame.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. This device installs a primary sealing ring to improve the sealing between the anti-slip ring and the support shaft, and the secondary sealing ring can further improve the sealing between the limit stop cover, the anti-slip ring and the support shaft, and the water guide hole will guide the rainwater inside the guide groove to the sealing ring, so that the sealing ring can expand when it encounters water, thereby improving the sealing between the limit stop cover and the blocking gate plate, thereby preventing the ball bearing from being eroded by rainwater during use, thereby ensuring the smoothness of the guide of the limit simply supported wheel;
[0015] 2. This device installs a follower plate and a ball bearing to enable the support shaft to rotate, so that the support shaft can support the limit simple support wheel while also enabling the limit simple support wheel to rotate, and the limit simple support wheel can roll up and down synchronously inside the guide groove, thereby reducing the resistance to the up and down displacement of the blocking gate plate, thereby making the blocking gate plate smoother during the opening and closing process. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;
[0017] Figure 2 It is a structural diagram of the guide assembly in the utility model;
[0018] Figure 3 It is a top cross-sectional view of the guide assembly and the sealing assembly in the utility model;
[0019] Figure 4 It is a dispersed structural diagram (exploded diagram) of the guide assembly and the sealing assembly in the utility model;
[0020] Figure 5 for Figure 3A is an enlarged view of the middle image.
[0021] In the figure: 1. gate frame; 2. blocking gate plate; 21. sealing strip; 3. worm gear hoist; 4. mounting plate; 5. guide assembly; 51. limit simply supported wheel; 52. anti-drop nut; 53. support shaft; 54. follower plate; 55. ball bearing; 6. sealing assembly; 61. limit stop cover; 62. secondary sealing ring; 63. anti-drop stop ring; 64. mechanical seal; 65. sealing ring; 66. water guide hole; 67. primary sealing ring. DETAILED DESCRIPTION
[0022] 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.
[0023] See also Figure 1-5 , the utility model provides a technical solution:
[0024] Embodiment 1:
[0025] A gate simply supported wheel shaft end sealing device comprises a gate frame 1, a blocking gate plate 2, a worm gear hoist 3 and a mounting plate 4. The mounting plate 4 is fixedly connected to the side of the gate frame 1, and the mounting plate 4 is convenient for the installer to install the gate frame 1. A worm gear hoist 3 is installed on the upper end surface of the gate frame 1, and the worm gear hoist 3 can move the blocking gate plate 2 up and down when working. Since the internal detailed structure and working principle of the worm gear hoist 3 are relatively mature technologies in the prior art, they are not described in detail here. A blocking gate plate 2 is installed on the lower side of the gate frame 1, and the blocking gate plate 2 can block the river channel and store water when closed. The front and rear end surfaces of the blocking gate plate 2 are both provided with sealing strips 21, and the sealing strips 21 are connected to the blocking gate plate 2 by bonding. The sealing strips 21 make the sealing between the blocking gate plate 2 and the gate frame 1 better, and prevent the blocking gate plate 2 from easily leaking.
[0026] A guiding component 5 is arranged on the side of the blocking gate plate 2, and the guiding component 5 is used to improve the lifting and lowering smoothness of the blocking gate plate 2. A sealing component 6 is arranged between the guiding component 5 and the blocking gate plate 2, and the sealing component 6 is used to improve the sealing between the guiding component 5 and the blocking gate plate 2.
[0027] The guide assembly 5 includes a limited simply supported wheel 51, an anti-dropping nut 52, a support shaft 53 and a follower plate 54. The follower plates 54 are symmetrically installed on the left and right end surfaces of the blocking gate plate 2. The follower plate 54 and the support shaft 53 are an integrated structure. The follower plate 54, which is an integrated structure with the support shaft 53, enables the support shaft 53 to have the ability to rotate. The support shaft 53 is connected to the middle position of the left end surface of the follower plate 54. The support shaft 53 can support the limited simply supported wheel 51. The limited simply supported wheel 51 is installed on the annular side surface of the support shaft 53. The limited simply supported wheel 51 makes the blocking gate plate 2 have less resistance when moving up and down. An anti-dropping nut 52 is installed on the left side of the annular side surface of the support shaft 53. The anti-dropping nut 52 is made of a loosening nut. The anti-dropping nut 52 made of a loosening nut can not only fix the limited simply supported wheel 51 on the annular side surface of the support shaft 53, but also will not easily loosen during use.
[0028] An external thread is provided on the left side of the annular side surface of the support shaft 53, and the external thread is meshed with the anti-slip nut 52. The external thread facilitates the installation of the anti-slip nut 52 on the annular side surface of the support shaft 53. A ball bearing 55 is installed on the annular side surface of the follower plate 54. The ball bearing 55 matches the follower plate 54. The ball bearing 55 makes the rotation of the follower plate 54 smoother. Guide grooves are symmetrically provided on the left and right sides of the inner wall of the gate frame 1. The guide grooves facilitate the up and down movement of the limited simply supported wheel 51 inside the gate frame 1.
[0029] Embodiment 2:
[0030] On the basis of Example 1, in this embodiment, a primary sealing ring 67 is installed to improve the sealing between the anti-slip ring 63 and the support shaft 53, and the secondary sealing ring 62 can further improve the sealing between the limit cover 61 and the anti-slip ring 63 and the support shaft 53, and the water conducting hole 66 will guide the rainwater inside the guide groove to the sealing ring 65, so that the sealing ring 65 can expand when it encounters water, thereby improving the sealing between the limit cover 61 and the blocking gate plate 2, thereby preventing the ball bearing 55 from being eroded by rainwater during use, thereby ensuring the smoothness of the guiding of the limit simply supported wheel 51.
[0031] The sealing assembly 6 includes a limit stop cover 61, an anti-slip ring 63, a mechanical seal 64 and a primary sealing ring 67. The limit stop cover 61 is symmetrically installed on the left and right end surfaces of the blocking gate plate 2. The limit stop cover 61 can block and limit the follower plate 54 and the ball bearing 55 to prevent the follower plate 54 and the ball bearing 55 from displacement or shaking during the rotation and use. The left end surface of the limit stop cover 61 is installed with an anti-slip ring 63, which can block and limit the primary sealing ring 67 and the secondary sealing ring 62 to prevent In order to prevent the primary sealing ring 67 and the secondary sealing ring 62 from loosening or deviating during use, a mechanical seal 64 is embedded in the inner wall of the limit stop cover 61. The mechanical seal 64 improves the sealing performance between the limit stop cover 61 and the support shaft 53. A primary sealing ring 67 is embedded in the inner wall of the anti-slip ring 63. The primary sealing ring 67 is made of a flexible graphite sealing ring. The primary sealing ring 67 made of a flexible graphite sealing ring is not only resistant to high temperature, corrosion and wear, but also improves the sealing performance between the anti-slip ring 63 and the support shaft 53.
[0032] Water conducting holes 66 are symmetrically provided on the upper and lower sides and the front and rear sides inside the limit stop cover 61. The water conducting holes 66 are convenient for guiding rainwater inside the guide groove to the sealing ring 65. A sealing ring 65 is installed on the right end face of the limit stop cover 61, and the sealing ring 65 is made of water-swelling rubber. The sealing ring 65 made of water-swelling rubber can swell when exposed to water, thereby making the sealing between the limit stop cover 61 and the blocking gate plate 2 better. A secondary sealing ring 62 is embedded on the left end face of the limit stop cover 61, and the secondary sealing ring 62 is matched with the support shaft 53. The secondary sealing ring 62 is made of carbon fiber packing. The secondary sealing ring 62 made of carbon fiber packing is not only wear-resistant and has a long service life, but also can further improve the sealing between the limit stop cover 61 and the anti-detachment stop ring 63 and the support shaft 53.
[0033] Working principle: During the use of the blocking gate plate 2, the follower plate 54 and the ball bearing 55 enable the support shaft 53 to be rotatable, so that the support shaft 53 can support the limiting simple support wheel 51 while also enabling the limiting simple support wheel 51 to be rotatable, so that during the up and down displacement of the blocking gate plate 2, the limiting simple support wheel 51 can synchronously roll up and down inside the guide groove, thereby reducing the resistance to the up and down displacement of the blocking gate plate 2, so that the blocking gate plate 2 has better smoothness during the opening and closing process, and the anti-slip nut 52 can fix the limiting simple support wheel 51 on the annular side surface of the support shaft 53 to prevent the limiting simple support wheel 51 from loosening during use, and the limiting cover 61 can block and limit the follower plate 54 and the ball bearing 55 to prevent the follower plate 54 and the ball bearing 55 from displacement or shaking during rotation; At the same time, the primary sealing ring 67 makes the sealing between the anti-slip ring 63 and the support shaft 53 better, preventing external water from penetrating into the interior through the gap between the anti-slip ring 63 and the support shaft 53, and the secondary sealing ring 62 can further improve the sealing between the limit cover 61, the anti-slip ring 63 and the support shaft 53, preventing external water from penetrating into the interior through the gap between the limit cover 61, the anti-slip ring 63 and the support shaft 53. At the same time, the mechanical seal 64 makes the sealing between the limit cover 61 and the support shaft 53 better, and the water guiding hole 66 will guide the rainwater inside the guide groove to the sealing ring 65, so that the sealing ring 65 made of water-swellable rubber can expand when it comes into contact with water, thereby making the sealing between the limit cover 61 and the blocking gate plate 2 better, thereby preventing the ball bearing 55 from being eroded by rainwater during use, thereby ensuring the service life of the ball bearing 55.
[0034] 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 gate simply supported wheel shaft end sealing device, comprising a gate frame (1), a blocking gate plate (2), a worm gear hoist (3) and a mounting plate (4), characterized in that: The gate frame (1) is fixedly connected to a mounting plate (4) on its side, a worm gear hoist (3) is mounted on the upper end surface of the gate frame (1), and a blocking gate plate (2) is mounted on the lower inner side of the gate frame (1); A guide component (5) is provided on the side of the blocking gate plate (2), and the guide component (5) is used to improve the smoothness of the lifting and lowering of the blocking gate plate (2). A sealing component (6) is provided between the guide component (5) and the blocking gate plate (2), and the sealing component (6) is used to improve the sealing between the guide component (5) and the blocking gate plate (2).
2. A gate simply supported wheel shaft end sealing device according to claim 1, characterized in that: The guide assembly (5) comprises a limited simple support wheel (51), an anti-dropping nut (52), a support shaft (53) and a follower plate (54); the left and right end surfaces of the blocking gate plate (2) are symmetrically mounted with the follower plate (54); the middle position of the left end surface of the follower plate (54) is connected with the support shaft (53); the limited simple support wheel (51) is mounted on the annular side surface of the support shaft (53); and the anti-dropping nut (52) is mounted on the left side of the annular side surface of the support shaft (53).
3. The gate simply supported wheel shaft end sealing device according to claim 1, characterized in that: The sealing assembly (6) comprises a limit stop cover (61), an anti-slip ring (63), a mechanical seal (64) and a primary sealing ring (67); the limit stop cover (61) is symmetrically mounted on the left and right end surfaces of the blocking gate plate (2); the anti-slip ring (63) is mounted on the left end surface of the limit stop cover (61); the mechanical seal (64) is embedded in the inner wall of the limit stop cover (61); and the primary sealing ring (67) is embedded in the inner wall of the anti-slip ring (63).
4. A gate simply supported wheel shaft end sealing device according to claim 3, characterized in that: The upper and lower sides and the front and rear sides of the limit stop cover (61) are symmetrically provided with water conducting holes (66). The right end surface of the limit stop cover (61) is provided with a sealing ring (65), and the sealing ring (65) is made of water-swellable rubber.
5. The gate simply supported wheel shaft end sealing device according to claim 3, characterized in that: A secondary sealing ring (62) is embedded in the left end surface of the limit stop cover (61), and the secondary sealing ring (62) matches the support shaft (53). The secondary sealing ring (62) is made of carbon fiber packing, and the primary sealing ring (67) is made of a flexible graphite sealing ring.
6. A gate simply supported wheel shaft end sealing device according to claim 2, characterized in that: A ball bearing (55) is installed on the annular side surface of the follower plate (54); the follower plate (54) and the support shaft (53) are an integrated structure; and an external thread is arranged on the left side of the annular side surface of the support shaft (53).
7. The gate simply supported wheel shaft end sealing device according to claim 1, characterized in that: The front and rear end surfaces of the blocking gate plate (2) are both provided with sealing strips (21), and the inner wall of the gate frame (1) is symmetrically provided with guide grooves on both left and right sides.