Wheelchair hub bearing press device

Abstract

The utility model discloses a wheelchair hub bearing pressing device, including base, bottom plate, support rod, pressboard, limit board, bottom plate fixed setting is on the base, the upper surface middle part of bottom plate is equipped with with the limit slot of the shape adaptation of bearing to be pressed and installs, four support rods two two symmetry settings are fixed respectively in the four corners of base, the pressboard is equipped with the through -hole of passing through for support rod, the top of pressboard is used for with lifting drive equipment cooperation, and two limit boards are left and right symmetry settings on bottom plate, one side of limit board towards bottom plate center is equipped with arc -shaped groove.

Description

Technical Field

[0001] This utility model relates to the field of fixture design technology, specifically a wheelchair hub bearing clamping device. Background Technology

[0002] In the wheelchair manufacturing industry, the pressing process of wheel hub bearings is crucial. However, while manual pressing is low-cost, it has many drawbacks: firstly, relying solely on manual pressing makes it difficult to ensure uniform and stable pressing force, often resulting in incomplete bearing pressing and affecting assembly accuracy; secondly, manual pressing is inefficient, failing to meet the needs of large-scale production, and requires highly skilled operators, otherwise improper operation can easily damage the bearing or lead to pressing failure. While complex equipment can improve pressing accuracy, its purchase and maintenance costs are high, it has stringent operating environment requirements, and its repair is difficult and time-consuming, placing a heavy economic burden on small wheelchair manufacturers or repair shops. Therefore, there is an urgent market need for a wheelchair wheel hub bearing pressing device that is simple in structure, low in cost, easy to operate, and can effectively guarantee pressing quality, to overcome the shortcomings of existing technologies and meet the urgent needs of industry development. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model relates to a wheelchair hub bearing clamping device. This device has a simple and reliable structure, effectively solves the aforementioned technical problems, and is suitable for widespread use. To achieve the above objectives, this utility model employs the following technical solution:

[0004] A wheelchair hub bearing clamping device includes a base, a base plate, support rods, a pressure plate, and a limiting plate. The base plate is fixedly mounted on the base. The upper surface of the base plate has a limiting groove in the middle that matches the shape of the bearing to be clamped. Four support rods are symmetrically arranged in pairs and fixed at the four corners of the base. The pressure plate has through holes for the support rods to pass through. The upper part of the pressure plate is used to cooperate with a lifting drive device. Two limiting plates are symmetrically arranged on the base plate. The limiting plate has an arc-shaped groove on the side facing the center of the base plate.

[0005] Based on the above scheme and as a preferred embodiment of the above scheme: it further includes a guide seat, the inner hole of which is slidably engaged with the support rod, and the convex part of the guide seat is connected to the pressure plate by bolt connection.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: a first spring is sleeved on the outer side of the two diagonally arranged support rods, and the first spring is located between the pressure plate and the base.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: a bolt mounting hole is provided at each of the four corners of the base plate, and a threaded hole that mates with the bolt mounting hole is provided on the base. The bolt mounting hole is used to insert a bolt, and the base plate is detachably connected to the base by bolt connection.

[0008] Based on the above solution and as a preferred embodiment, the solution further includes an adjustable limiting component, which comprises a fixed block, a guide rail, a slider, a limiting rod, and a second spring. A groove is provided on the base plate, and the guide rail is installed within the groove. One end of the guide rail points towards the center of the base plate. The slider slides in cooperation with the guide rail. The limiting plate is installed above the slider. The fixed block is disposed on the base plate and is positioned opposite to the limiting plate. One end of the limiting rod is fixedly connected to the fixed block, and the other end of the limiting rod engages with the guide hole of the limiting plate. The second spring is sleeved on the outside of the limiting rod and is located between the fixed block and the limiting plate.

[0009] The outstanding and beneficial technical effects of this utility model compared with the prior art are as follows: This wheelchair hub bearing pressing device achieves precise positioning and stable pressing of the hub bearing through the coordinated action of the limiting groove, support rod, pressure plate and limiting plate on the base plate. The detachable connection between the base plate and the base facilitates quick replacement of the base plate according to the bearing model, improving the versatility of the device. The sliding cooperation between the guide seat and the support rod and the buffering effect of the spring ensure that the pressure plate runs smoothly during the lifting process. The overall design structure is simple and low cost, effectively solving the contradiction between insufficient accuracy of manual pressing and high cost of complex equipment in the prior art, and significantly improving pressing efficiency and quality. Attached Figure Description

[0010] Figure 1 This is a diagram illustrating the use of the jig;

[0011] Figure 2 This is a diagram showing the bearing positions;

[0012] Figure 3 This is a schematic diagram of the base plate structure;

[0013] Figure 4 This is a schematic diagram of an adjustable limit component. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.

[0015] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The directions or positional relationships shown are for the purpose of describing this utility model only, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0017] It is worth noting that in order to solve the above-mentioned technical problems, such as Figure 1-4 As shown, this utility model designs a wheelchair hub bearing clamping device, including a base 1, a base plate 2, support rods 3, a pressure plate 4, and limiting plates 5. The base plate 2 is fixedly mounted on the base 1. The upper surface of the base plate 2 has a limiting groove 16 in the middle that matches the shape of the bearing 8 to be clamped. Four support rods 3 are symmetrically arranged in pairs and fixed at the four corners of the base 1. The pressure plate 4 has through holes for the support rods 3 to pass through. The upper part of the pressure plate 4 is used to cooperate with a lifting drive device (not shown in the figure). The lifting drive device can be a cylinder, hydraulic cylinder, etc., without specific limitations. The pressure plate can be driven to move back and forth in the vertical direction. A baffle is provided above the support rods 3 to limit the pressure plate 4 from above and prevent it from moving too far. Two limiting plates 5 are symmetrically arranged on the base plate 2. The positioning plate 5 has an arc-shaped groove on the side facing the center of the base plate 2. During operation, the wheelchair hub 6 bearing 8 to be pressed is first placed in the limiting groove of the base plate 2 to ensure the bearing 8 is in an accurate position. Then, the hub 6 is placed above the bearing 8, and the hub 6 is limited by the arc-shaped grooves on the two limiting plates 5 and the edge of the hub 6 to ensure that the hub 6 and the bearing 8 are coaxially aligned. Then, the lifting drive device is started, so that the pressure plate 4 moves downward along the support rod 3 to press the hub 6 and the bearing 8. During the downward movement of the pressure plate 4, the limiting plates 5 and the limiting groove work together to ensure that the hub 6 and the bearing 8 maintain a stable position during the pressing process. When the pressure plate 4 is pressed down to the set position and the pressing process of the bearing 8 is completed, the lifting drive device reverses, and the pressure plate 4 rises along the support rod 3 to complete one pressing cycle.

[0018] The four support rods 3 are symmetrically arranged in pairs to ensure that the pressure plate 4 remains stable during the lifting process and avoids impact on the bearing 8. Through the coordinated action of the limiting groove on the base plate 2, the support rods 3, the pressure plate 4 and the limiting plate 5, the precise positioning and stable pressing of the wheel hub 6 bearing 8 are achieved. The overall design is simple and low-cost, effectively solving the contradiction between insufficient precision of manual pressing and high cost of complex equipment in the existing technology, and significantly improving pressing efficiency and quality.

[0019] In this embodiment, it is further preferred to include a guide seat 7, the inner hole of which is slidably engaged with the support rod 3, and the convex part of the guide seat 7 is connected to the pressure plate 4 by bolt connection. The slidable engagement between the inner hole of the guide seat 7 and the support rod 3 can effectively ensure that the movement trajectory of the pressure plate 4 is more stable and accurate during the lifting process, avoid the pressure plate 4 from shaking or deviating, and thus improve the stability of the pressing operation.

[0020] In this embodiment, it is further preferred that the two diagonally arranged support rods 3 are fitted with a first spring 9 on their outer sides. The first spring 9 is located between the pressure plate 4 and the base 1. When the pressure plate 4 is pressed down, the first spring 9 is compressed, which can buffer the pressing action of the pressure plate 4, reduce the impact force on the bearing 8 and the hub 6 at the moment of pressing, prevent the bearing 8 or hub 6 from being damaged due to excessive impact force, and improve the pressing quality.

[0021] In this embodiment, it is further preferred that each of the four corners of the base plate 2 is provided with a bolt mounting hole 10, and the base 1 is provided with a threaded hole that mates with the bolt mounting hole 10. The bolt mounting hole 10 is used to insert a bolt. The base plate 2 is detachably connected to the base 1 by bolt connection. This design allows for quick replacement of the base plate 2 that is compatible with the shape of the corresponding bearing 8 when it is necessary to press different models of wheelchair hub 6 bearings 8, without the need for complex adjustments or replacements of the entire device. This greatly improves the versatility and flexibility of the device, reduces equipment costs, and also facilitates individual maintenance or replacement of the base plate 2, reducing maintenance time and costs.

[0022] Further improvements to the above embodiments include, specifically, an adjustable limiting component. This adjustable limiting component comprises a fixing block 11, a guide rail 12, a slider 13, a limiting rod 14, and a second spring 15. The base plate 2 has a groove, and the guide rail 12 is installed within the groove. One end of the guide rail 12 points towards the center of the base plate 2. The slider 13 slides with the guide rail 12. The limiting plate 5 is installed above the slider 13. The fixing block 11 is disposed on the base plate 2 and opposite to the limiting plate 5. One end of the limiting rod 14 is fixedly connected to the fixing block 11, and the other end slides with the guide hole of the limiting plate 5. The second spring 15 is sleeved on the outside of the limiting rod 14. The spring 15 is located between the fixed block 11 and the limiting plate 5. The adjustable limiting component significantly improves the flexibility and adaptability of the device. Through the cooperation of the slider 13 and the guide rail 12, the limiting plate 5 can slide along the guide rail 12, thereby quickly adjusting the position of the limiting plate 5 according to the actual size of the wheel hub 6, achieving precise limiting for wheel hubs 6 of different diameters. The design of the second spring 15 provides elastic support for the limiting plate 5, ensuring that it can closely fit the edge of the wheel hub 6 during the pressing process, enhancing the limiting effect. Since the outer diameter specifications of the wheel hubs 6 of different wheelchairs are different, but the bearings 8 used are usually shared, the pressing device can quickly complete the limiting setting without complicated adjustments when facing wheel hubs 6 of different specifications, greatly improving work efficiency.

[0023] The lifting drive device, spring, bolt connection and other technical features involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement of these technical features can be adopted by conventional choices in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0024] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made by those skilled in the art based on the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A wheelchair hub bearing clamping device, characterized in that: The device includes a base, a base plate, support rods, a pressure plate, and a limiting plate. The base plate is fixedly mounted on the base. The upper surface of the base plate has a limiting groove in the middle that matches the shape of the bearing to be pressed. Four support rods are symmetrically arranged in pairs and fixed at the four corners of the base. The pressure plate has through holes for the support rods to pass through. The top of the pressure plate is used to cooperate with a lifting drive device. Two limiting plates are symmetrically arranged on the base plate. The limiting plate has an arc-shaped groove on the side facing the center of the base plate.

2. The wheelchair hub bearing clamping device according to claim 1, characterized in that: It also includes a guide seat, the inner hole of which is slidably engaged with the support rod, and the convex part of the guide seat is connected to the pressure plate by bolts.

3. The wheelchair hub bearing clamping device according to claim 1, characterized in that: Two diagonally positioned support rods are fitted with first springs on their outer sides, with the first springs located between the pressure plate and the base.

4. The wheelchair hub bearing clamping device according to claim 1, characterized in that: The base plate has a bolt mounting hole at each of its four corners. The base has a threaded hole that mates with the bolt mounting hole. The bolt mounting hole is used to insert a bolt. The base plate is detachably connected to the base by bolt connection.

5. The wheelchair hub bearing clamping device according to claim 1, characterized in that: It also includes an adjustable limiting component, which includes a fixed block, a guide rail, a slider, a limiting rod, and a second spring. The base plate has a groove, the guide rail is installed in the groove, one end of the guide rail points to the center of the base plate, the slider slides with the guide rail, the limiting plate is installed above the slider, the fixed block is set on the base plate and is opposite to the limiting plate, one end of the limiting rod is fixedly connected to the fixed block, and the other end of the limiting rod cooperates with the guide hole of the limiting plate, the second spring is sleeved on the outside of the limiting rod, and the second spring is located between the fixed block and the limiting plate.

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