Device for preventing oil throwing of crown block high-speed axial band-type brake wheel
By installing upper and lower protective seats and arc-shaped covers on the coupling of the overhead crane to prevent oil from splashing off the high-speed axial brake wheel, the problem of frequent hook slippage of the No. 22 overhead crane was solved, the risk of oil splashing onto the brake wheel was reduced, and the braking effect and versatility of the device were improved.
Patent Information
- Application Number
- CN202423049060.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-11
AI Technical Summary
In the existing technology, the main hoisting braking device of crane No. 22 has a lot of hook slippage problems, mainly due to oil stains on the main hoisting brake wheel, which poses a risk of cargo damage, equipment damage and personnel injury.
A device for preventing oil from splashing off the high-speed axial brake wheel of an overhead crane was designed. The upper and lower protective seats and the arc-shaped cover connected to the brake wheel by the coupling form a complete ring to prevent oil from overflowing from the oil seal gap and splashing onto the brake wheel. The position is adjusted by adjusting the rod and the handle to fit the coupling tightly, and gaps are provided to avoid friction.
It effectively prevents oil from overflowing from the oil seal gap and splashing onto the brake wheel, reduces hook slippage, improves braking performance, and enhances the versatility and protective effect of the device.
Smart Images
Figure CN223511764U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of overhead crane technology, specifically relating to a device for preventing oil slinging from the high-speed axial brake wheel of an overhead crane. Background Technology
[0002] Overhead cranes, also known as bridge cranes, are lifting equipment that spans across workshops, warehouses, and material yards for material handling. Because their ends rest on tall concrete pillars or metal supports, they resemble bridges. The bridge frame of an overhead crane runs longitudinally along tracks laid on elevated structures on both sides, making full use of the space beneath the bridge frame for material handling without being obstructed by ground equipment. It is the most widely used and numerous type of lifting machinery.
[0003] The main hoisting brake device of our No. 22 crane has a higher rate of hook slippage during use compared to other cranes. Upon inspection, it was found that there was oil residue on the main hoisting brake wheel of the No. 22 crane. Despite repeated cleaning and wiping by the crane operators, oil residue was still splashed onto the brake wheel, causing the hook slippage to occur more frequently than other cranes. This poses a risk of cargo damage, equipment damage, and even personal injury. Utility Model Content
[0004] To address the problem of frequent hook slippage in existing overhead crane No. 22, this invention provides a device to prevent oil from splashing off the high-speed axial brake wheel of the overhead crane. This device prevents oil overflowing from the coupling oil seal gap from splashing onto the brake wheel, thereby reducing hook slippage in the No. 22 overhead crane.
[0005] The technical solution adopted by this utility model for a device to prevent oil slinging from the high-speed axial brake wheel of an overhead crane is as follows:
[0006] A device for preventing oil slinging from the high-speed axial brake wheel of an overhead crane includes a high-speed shaft connected to the brake wheel via a coupling. The device is characterized in that: a lower protective seat is detachably connected to one side of the coupling connected to the high-speed shaft; a lower arc-shaped cover extending towards the brake wheel is provided on the side of the lower protective seat facing the brake wheel; an upper protective seat is hinged above the lower protective seat and detachably connected to the coupling; an upper arc-shaped cover extending towards the brake wheel is provided on the side of the upper protective seat facing the brake wheel; the lower arc-shaped cover and the upper arc-shaped cover form a complete ring when joined together, and a gap is provided between the lower arc-shaped cover, the upper arc-shaped cover and the brake wheel.
[0007] A further improvement of this utility model is that one end of the lower protective seat is connected to the corresponding end of the upper protective seat via a column hinge.
[0008] A further improvement of the present invention is that: a lower connecting seat is provided at the other end of the lower protective seat, and a lower connecting hole is provided on the lower connecting seat; an upper connecting seat corresponding to the lower connecting seat is provided at the other end of the upper protective seat, and an upper connecting hole corresponding to the lower connecting hole is provided on the upper connecting seat.
[0009] A further improvement of the present invention is that: the inner side of the lower protective seat is provided with a lower arc-shaped seat that can move up and down and fit with the coupling, and the inner side of the upper protective seat is provided with an upper arc-shaped seat that can move up and down and fit with the coupling.
[0010] A further improvement of the above-mentioned technical solution of this utility model is that: both the lower arc-shaped seat and the upper arc-shaped seat are hinged to the outer arc side with an adjusting rod that passes through the corresponding protective seat, and an adjusting handle is fixedly connected to the end of the adjusting rod away from the corresponding arc-shaped seat; and a telescopic rod is also provided between the arc-shaped seat and the corresponding protective seat.
[0011] A further improvement of the above-mentioned technical solution of this utility model is that: the curvature of the lower arc-shaped cover is greater than or equal to the curvature of the lower protective seat, and the curvature of the upper arc-shaped cover is greater than or equal to the curvature of the upper protective seat.
[0012] Due to the adoption of the above technical solution, the technical progress achieved by this utility model includes:
[0013] In this invention, the hinged upper and lower protective seats facilitate easy assembly and disassembly of the coupling. The complete ring formed by the upper and lower arc-shaped covers completely encloses the coupling. Oil overflowing from the oil seal gap will be thrown into the ring formed by the upper and lower arc-shaped covers as the coupling rotates, thus preventing oil overflowing from the oil seal gap from being thrown onto the brake wheel and causing a decrease in braking effect.
[0014] The present invention, with its column hinge, lower connecting seat, and upper connecting seat, can be easily fitted onto the coupling.
[0015] Meanwhile, the lower and upper arc-shaped seats can be adjusted by means of an adjusting rod and an adjusting handle until they are in contact with the coupling, thus fixing the present invention onto the coupling. Furthermore, since the positions of the lower and upper arc-shaped seats are adjustable, the present invention can be used on various types of couplings, improving its versatility.
[0016] In this invention, since the curvature of the arc-shaped cover is greater than or equal to the curvature of the corresponding protective seat, the protective effect of this invention on the coupling can be maximized. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a device for preventing oil slinging from the high-speed axial brake wheel of an overhead crane when applied according to this utility model;
[0018] Figure 2 and Figure 3This is a schematic diagram of the structure of a device for preventing oil slinging from the high-speed axial brake wheel of an overhead crane according to this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of a device for preventing oil spillage from the high-speed axial brake wheel of an overhead crane when it is opened.
[0020] In the attached diagram: 1. Coupling; 2. Brake wheel; 3. High-speed shaft;
[0021] 4. Lower protective seat; 41. Lower arc-shaped cover; 42. Lower connecting seat; 43. Lower connecting hole; 44. Lower arc-shaped seat;
[0022] 5. Upper protective seat; 51. Upper arc-shaped cover; 52. Upper connecting seat; 53. Upper connecting hole; 54. Upper arc-shaped seat;
[0023] 6. Adjusting rod; 61. Adjusting handle;
[0024] 7. Telescopic pole. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. In the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of this utility model.
[0026] First refer to Figure 2 , Figure 3 and Figure 4 As can be seen, this utility model includes an arc-shaped lower protective seat 4, one end of which is hinged (such as a column hinge) to an arc-shaped upper protective seat 5. Simultaneously, the other end of the lower protective seat 4 is fixedly connected to a lower connecting seat 42, which has a lower connecting hole 43. The other end of the upper protective seat 5 is fixedly connected to an upper connecting seat 52, which also has an upper connecting hole 53. When the upper protective seat 5 and the lower protective seat 4 are mated together, they form a complete ring. At this time, the upper connecting seat 52 and the lower connecting seat 42 fit together, and the upper connecting hole 53 and the lower connecting hole 43 are correspondingly connected.
[0027] The inner arc side of the lower protective seat 4 is provided with a lower arc-shaped seat 44 that can move up and down and can fit with the coupling 1. The lowest point of the outer arc side of the lower arc-shaped seat 44 is hinged with an adjusting rod 6 that runs vertically through the lower protective seat 4. Specifically, the adjusting rod 6 can be a threaded rod. The top end of the threaded rod is connected to the lowest point of the outer arc side of the lower arc-shaped seat 44 through a bearing. The threaded rod runs vertically downward through the lower protective seat 4 and is threadedly connected to the lower protective seat 4. The bottom end of the threaded rod is fixedly connected with an adjusting handle 61. At the same time, the outer arc side of the lower arc-shaped seat 44 and the inner arc side of the lower protective seat 4 are connected by a telescopic rod 7. In this embodiment, the telescopic rod 7 can be a manual telescopic rod 7 or a spring rod, etc., which can be telescopic. The number of telescopic rods 7 can be an even number such as 2, 4, or 6, and they are evenly distributed on both sides of the telescopic rod 7.
[0028] Continue to refer to Figure 2 , Figure 3 and Figure 4 It can be seen that in this utility model, the inner arc side of the upper protective seat 5 is provided with an upper arc-shaped seat 54 that can move up and down and can fit with the coupling 1. The highest point of the outer arc side of the upper arc-shaped seat 54 is hinged to an adjusting rod 6 that runs vertically through the upper protective seat 5. The connection method between the adjusting rod 6 and the upper arc-shaped seat 54 is the same as the connection method between the lower arc-shaped seat 44 and the adjusting rod 6. At the same time, an even number of telescopic rods 7 (such as manual telescopic rods 7 or spring rods that can extend and retract) are evenly and equidistantly distributed on both sides of the adjusting rod 6. The two ends of each telescopic rod 7 are connected to the outer arc side of the upper arc-shaped seat 54 and the inner arc side of the upper protective seat 5, respectively.
[0029] Continue to refer to Figure 2 , Figure 3 and Figure 4 It can be seen that a lower arc-shaped cover 41 is fixedly connected to one side of the lower protective seat 4. The arc of the lower arc-shaped cover 41 can be greater than or equal to the arc of the lower protective seat 4. At the same time, an upper arc-shaped cover 51 with the same arc as the lower arc-shaped cover 41 and corresponding to the lower arc-shaped cover 41 is fixedly connected to one side of the upper protective seat 5. When the lower arc-shaped cover 41 and the upper arc-shaped cover 51 are joined together, a complete ring can be formed.
[0030] The working principle of the device for preventing oil slinging from the high-speed axial brake wheel of the overhead crane in this embodiment is as follows: When using this utility model, first open to... Figure 4 In the first position, the open component is placed on the coupling 1, with the lower arc-shaped seat 44 and the lower protective seat 4 positioned below the coupling 1, and the upper arc-shaped seat 54 and the upper protective seat 5 positioned above the coupling 1. Then, the component is closed as follows. Figure 2 and Figure 3As shown, the upper connecting seat 52 and the lower connecting seat 42 are fitted together, and bolts are inserted into the connected upper connecting hole 53 and lower connecting hole 43. The upper protective seat 5 and the lower protective seat 4 are locked together by the cooperation of the bolts and nuts. At this time, the lower arc-shaped cover 41 and the upper arc-shaped cover 51 are joined together to form a complete ring.
[0031] In this embodiment, the lower arc-shaped cover 41 and the upper arc-shaped cover 51 facing the brake wheel 2 can be in contact with the brake wheel 2. However, when using this utility model, the lower arc-shaped cover 41 and the upper arc-shaped cover 51 rotate with the coupling 1. In order to prevent friction between the arc-shaped cover and the brake wheel 2 when the arc-shaped cover and the upper arc-shaped cover 51 rotate, the side of the lower arc-shaped cover 41 and the upper arc-shaped cover 51 facing the brake wheel 2 can be adjusted to have a certain gap with the brake wheel 2. This gap can be 1-3mm, preferably. 2mm; then rotate the adjusting handle 61 to adjust the position of the lower arc-shaped seat 44 and the upper arc-shaped seat 54 until the inner arc sides of the lower arc-shaped seat 44 and the upper arc-shaped seat 54 are tightly fitted together with the coupling 1, thereby fixing the present invention on the coupling 1. The oil overflowing from the oil seal gap will be thrown into the ring formed by the upper arc-shaped cover 51 and the lower arc-shaped cover 41 as the coupling 1 rotates, thereby preventing the oil overflowing from the oil seal gap from being thrown onto the brake wheel 2, which would lead to a decrease in braking effect.
[0032] Meanwhile, sealant can be applied to the connection between the upper arc-shaped cover 51 and the lower arc-shaped cover 41 to prevent oil from splashing out from the gap at the connection between the upper arc-shaped cover 51 and the lower arc-shaped cover 41.
[0033] In the above embodiments, this utility model provides a device to prevent oil from splashing off the high-speed axial brake wheel of an overhead crane. The upper and lower protective seats, hinged together, facilitate easy assembly and disassembly of the device on the coupling. The upper and lower arc-shaped covers prevent oil overflowing from the oil seal gap from being splashed onto the brake wheel, thus preventing a decrease in braking performance. Simultaneously, gaps are provided between the lower and upper arc-shaped covers and the brake wheel, ensuring that the lower and upper arc-shaped covers rotate with the coupling, preventing friction between them and the brake wheel during rotation.
[0034] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.
Claims
1. A device for preventing oil slinging from the high-speed axial brake wheel of an overhead crane, comprising a high-speed shaft (3) connected to the brake wheel (2) via a coupling (1), characterized in that: A lower protective seat (4) is detachably connected to one side of the coupling (1) and the high-speed shaft (3). A lower arc-shaped cover (41) extending towards the brake wheel (2) is provided on the side of the lower protective seat (4). An upper protective seat (5) is hinged above the lower protective seat (4) and detachably connected to the coupling (1). An upper arc-shaped cover (51) extending towards the brake wheel (2) is provided on the side of the upper protective seat (5) facing the brake wheel (2). When the lower arc-shaped cover (41) and the upper arc-shaped cover (51) are joined together, they form a complete ring.
2. The device for preventing oil slinging from the high-speed axial brake wheel of an overhead crane according to claim 1, characterized in that: One end of the lower protective seat (4) is connected to the corresponding end of the upper protective seat (5) via a column hinge.
3. The device for preventing oil slinging from the high-speed axial brake wheel of an overhead crane according to claim 2, characterized in that: The other end of the lower protective seat (4) is provided with a lower connecting seat (42), and the lower connecting seat (42) is provided with a lower connecting hole (43); the other end of the upper protective seat (5) is provided with an upper connecting seat (52) corresponding to the lower connecting seat (42), and the upper connecting seat (52) is provided with an upper connecting hole (53) corresponding to the lower connecting hole (43).
4. The device for preventing oil slinging from the high-speed axial brake wheel of an overhead crane according to claim 1, characterized in that: The lower protective seat (4) has a lower arc-shaped seat (44) that can move up and down and fit with the coupling (1) on its inner side, and the upper protective seat (5) has an upper arc-shaped seat (54) that can move up and down and fit with the coupling (1) on its inner side.
5. A device for preventing oil slinging from the high-speed axial brake wheel of an overhead crane according to claim 4, characterized in that: The lower arc-shaped seat (44) and the upper arc-shaped seat (54) are both hinged to the outer arc side with an adjusting rod (6) that passes through the corresponding protective seat. The end of the adjusting rod (6) away from the corresponding arc-shaped seat is fixedly connected to an adjusting handle (61). A telescopic rod (7) is also provided between the arc-shaped seat and the corresponding protective seat.
6. A device for preventing oil slinging from the axial brake wheel of a crane at high speed according to any one of claims 1-5, characterized in that: The curvature of the lower arc-shaped cover (41) is greater than or equal to the curvature of the lower protective base (4), and the curvature of the upper arc-shaped cover (51) is the same as the curvature of the lower arc-shaped cover (41).