Guiding device for wheel bearing and shaft assembly

Abstract

The utility model provides a guiding device for assembling a wheel bearing and a shaft, which comprises a conical section and a cylindrical section, the conical section is connected with one end part of the cylindrical section, and the conical section is in arc transition connection with the cylindrical section through a middle section; the cylindrical section is installed on the first end portion of a wheel axle to be assembled, the first end portion of the wheel axle is provided with a chamfer, and the diameter of the cylindrical section is smaller than the diameter of the wheel axle and larger than the diameter of the first end portion. The guide device for assembling the wheel bearing and the shaft can realize quick positioning when the bearing is assembled in the horizontal direction, overcomes the obstruction of running of a space ring in the bearing to the shaft penetrating process, and is convenient to use and remarkable in effect. Meanwhile, the guide device can play an effective role in guiding the middle space ring of the bearing.

Description

Technical Field

[0001] The utility model relates to the field of shore container crane installation, in particular to a guide device for assembling wheel bearings and shafts. Background Art

[0002] Figure 1 The following is a schematic diagram of the wheel assembly of the carriage trolley. Figure 1 As shown, the wheel 50 of the trolley of the quay crane has a bearing 10 inside, and the bearing 10 is assembled on the wheel shaft 20. The end of the wheel shaft 20 is provided with an end cover 30, and the bearing 10 is pressed and fixed on the shaft shoulder through the end cover 30 (for example, using bolts 51).

[0003] The bearing 10 itself is a precision component, and has a spacer ring 40 inside. The assembly process needs to be carefully adjusted so that the wheel axle 20 can be assembled with the bearing 10 smoothly.

[0004] The installation of bearings and shafts generally adopts the shrink fitting process. After the bearing is heated, the inner diameter becomes larger, and it is quickly assembled on the shaft before cooling, which requires high assembly efficiency. When conditions permit, the bearing is usually placed flat, with the bearing hole facing up and the shaft vertically downward for assembly, which is convenient and quick.

[0005] However, if you encounter some special working conditions and cannot assemble vertically, threading the shaft will be more troublesome. Because the components are heavy, they usually need to be assembled in a hoisted state. At this time, on the one hand, the components will shake in the hoisted state, and it is not easy to align the inner hole of the bearing with the shaft, and the adjustment work in the initial stage of assembly will take a lot of time.

[0006] On the other hand, the inner spacer of the bearing is movable. During the assembly process, it will fall due to the influence of gravity, shaking, etc. and hinder the insertion of the shaft. It is necessary to specially check and fine-tune the spacer to make it centered to avoid interference in the threading process.

[0007] Due to the above reasons, the assembly process may be delayed for a long time, which may easily cause the bearing temperature to drop, making the matching tolerance tighter and making it impossible to complete the assembly work smoothly. Rework is time-consuming and labor-intensive.

[0008] In view of this, in order to solve the above problems, the inventors of the present application designed a guide device for assembling wheel bearings and shafts, which can realize rapid positioning and assembly of shafts and holes, and solve the problem of shaking of bearing spacers affecting assembly. Utility Model Content

[0009] The technical problem to be solved by the utility model is to overcome the defects in the prior art such as low assembly efficiency of wheel bearings and shafts, easy variation of matching tolerances, and inability to smoothly complete the assembly work, and to provide a guide device for assembling wheel bearings and shafts.

[0010] The utility model solves the above technical problems through the following technical solutions:

[0011] A guide device for assembling a wheel bearing and a shaft, characterized in that the guide device comprises a conical section and a cylindrical section, the conical section is connected to one end of the cylindrical section, and the conical section and the cylindrical section are connected via an intermediate section circular arc transition;

[0012] The cylindrical section is mounted to the first end of a wheel axle to be assembled, the first end of the wheel axle is provided with a chamfer, and the diameter of the cylindrical section is smaller than the diameter of the wheel axle and larger than the diameter of the first end.

[0013] According to an embodiment of the present utility model, the conical section and the cylindrical section are integrally formed.

[0014] According to an embodiment of the utility model, an open countersunk hole is provided on the side of the guide device, and a connecting hole is provided in the open countersunk hole for connecting the guide device and the wheel axle.

[0015] According to an embodiment of the utility model, a plurality of axial end threaded holes are formed on the first end portion of the wheel axle, and the guide device is assembled to the wheel axle by connecting the connecting holes and the axial end threaded holes via a fixing member.

[0016] According to an embodiment of the present invention, the two open countersunk holes are arranged oppositely on two side surfaces of the guide device.

[0017] According to an embodiment of the present invention, the open counterbore extends from the end of the conical section to the cylindrical section.

[0018] According to an embodiment of the utility model, a weight-reducing hole is provided in the guide device.

[0019] According to an embodiment of the utility model, the weight-reducing hole is close to the center of gravity of the guide device, or the weight-reducing hole is located at the center of gravity of the guide device.

[0020] According to an embodiment of the present utility model, the weight-reducing hole extends from the conical section to the cylindrical section.

[0021] According to an embodiment of the utility model, the weight-reducing hole and the open countersunk hole are interconnected.

[0022] The positive and progressive effects of the utility model are:

[0023] The utility model is a guide device for wheel bearing and shaft assembly, which can realize the rapid positioning of the bearing during horizontal assembly, overcome the obstacle of the inner spacer of the bearing running to the shaft threading process, and is easy to use and has significant effect. At the same time, the guide device can effectively guide the middle spacer of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always represent the same features, wherein:

[0025] Figure 1 Schematic diagram of the wheel assembly of the carriage trolley.

[0026] Figure 2 It is a stereoscopic view of the guide device for assembling a wheel bearing and axle according to the utility model.

[0027] Figure 3 The utility model is a front view of a guide device for assembling a wheel bearing and an axle.

[0028] Figure 4 for Figure 3 Sectional view taken along line AA.

[0029] Figure 5 for Figure 3 Cross-sectional view taken along line BB.

[0030] Figure 6 This is a three-dimensional diagram of a guide device for assembling a wheel bearing and an axle according to the utility model, and an assembled wheel axle.

[0031] Figure 7 This is a guide device for assembling a wheel bearing and an axle according to the utility model, and a front view of an assembled wheel axle.

[0032] Figure 8 The utility model is a guide device for assembling a wheel bearing and an axle, and a side view of an assembled wheel axle.

[0033] Fig. 9 The utility model is a schematic diagram of the installation of a guide device for assembling a wheel bearing and a shaft.

[0034] Fig.10 This is a schematic diagram of the first installation step of the guide device for assembling a wheel bearing and axle according to the present invention.

[0035] Fig.11 This is a schematic diagram of the second installation step of the guide device for assembling a wheel bearing and axle according to the utility model.

[0036] Fig.12This is a schematic diagram of the third installation step of the guide device for assembling a wheel bearing and axle according to the utility model.

[0037] [Reference Signs]

[0038] Bearing 10

[0039] Wheel axle 20

[0040] End cap 30

[0041] Spacer 40

[0042] Wheel 50

[0043] Bolt 51

[0044] Guide device 100

[0045] Cone segment 110

[0046] Cylindrical segment 120

[0047] Middle arc 130

[0048] Wheel axle 200

[0049] First end portion 210

[0050] The diameter of the cylindrical segment D1

[0051] Wheel axle diameter D2

[0052] Diameter D3 of the first end

[0053] Open counterbore 140

[0054] Connection hole 141

[0055] Weight reduction hole 150

[0056] Fixing 160

[0057] Shaft end threaded hole 220

[0058] Wheel-bearing assembly 300 DETAILED DESCRIPTION

[0059] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0060] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.Preferred embodiments of the present invention will now be described in detail, examples of which are shown in the accompanying drawings.Where possible, the same reference numerals will be used throughout the drawings to represent the same or similar parts.

[0061] In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the specification of the present invention may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article.

[0062] Furthermore, it is required that the present invention be understood not only by the actual terms used but also by the meanings contained in each term.

[0063] like Figures 2 to 8 As shown, the utility model discloses a guide device 100 for assembling a wheel bearing and a shaft, which includes a conical section 110 and a cylindrical section 120. The conical section 110 is connected to one end of the cylindrical section 120, and the conical section 110 and the cylindrical section 120 are transitionally connected through an intermediate arc 130. The surfaces of the conical section 110 and the cylindrical section 120 are smooth surfaces.

[0064] During the assembly of the wheel bearing and the shaft, the cylindrical section 120 is first installed to the first end 210 of the wheel shaft 200 to be assembled. At the same time, a chamfer 220 is provided at the first end 210 of the wheel shaft 200, and the diameter D1 of the cylindrical section 120 is smaller than the diameter D2 of the wheel shaft 200, and larger than the diameter D3 of the first end 210.

[0065] In particular, the diameter D1 of the cylindrical section 120 is slightly smaller than the diameter D2 of the wheel axle 200 assembled with the bearing, and is slightly larger than the diameter D3 of the chamfered end face of the wheel axle 200, so that the bearing can smoothly pass through the guide device and quickly locate on the wheel axle 200 after the transition of the chamfered end face of the wheel axle 200. The end diameter of the conical section 110 needs to ensure that it can effectively guide the middle spacer of the wheel bearing.

[0066] Preferably, in this embodiment, the conical section 110 and the cylindrical section 120 are preferably integrally formed. Here, the guide device is made of metal and has a bullet head shape, with the front section being the conical section 110, the rear section being the cylindrical section 120, the middle section being a transitional arc 130, and a smooth surface.

[0067] Further preferably, an open counterbore 140 is provided on the side of the guide device 100, and a connecting hole 141 is provided in the open counterbore 140 for connecting the guide device and the wheel axle 200. Preferably, the open counterbore 140 extends from the end of the conical section 110 to the cylindrical section 120.

[0068] A plurality of shaft end threaded holes 220 are provided on the first end of the wheel shaft 200, and the guide device 100 is assembled to the wheel shaft 200 by connecting the connecting hole 141 and the shaft end threaded hole 220 through a fixing member 160 (e.g., a bolt). The shaft end threaded hole 220 here is used to install the end cover, and the compression bearing is fixed on the shaft shoulder. The guide device 100 can be installed on the shaft end by bolts using the shaft end threaded hole 220 at the shaft end, and after appropriate fine-tuning to ensure the coaxiality of the guide device 100 and the wheel shaft 200, the bolts can be tightened to securely fix the guide device 100.

[0069] For example, two open countersunk holes 140 are arranged oppositely on the two side surfaces of the guide device 100. The open countersunk holes 140 can meet the construction space requirements for inserting and tightening bolts, and determine the bolt hole positioning size on the guide device 100 according to the positioning of the axial end threaded hole 220 of the wheel axle 200.

[0070] Further preferably, a weight-reducing hole 150 is further provided in the guide device 100. The weight-reducing hole 150 is close to the center of gravity of the guide device 100, or the weight-reducing hole 150 is located at the center of gravity of the guide device 100.

[0071] In this embodiment, a lightening hole 150 is provided in the middle of the guide device 100, and the lightening hole 150 is provided near the center of gravity of the guide device 100. If it is found that the weight is too heavy to be held in hand during use, a sling can be passed through the hole to assist in positioning through the device. Since the hole is located near the center of gravity, it is helpful to keep the component stable.

[0072] In particular, the lightening hole 150 may be configured to extend from the conical section 110 to the cylindrical section 120. The lightening hole 150 and the open counterbore 140 are in communication with each other.

[0073] like Figures 9 to 12 As shown, according to the above structural description, the use process of the guide device for wheel bearing and shaft assembly of the utility model is as follows:

[0074] First, the guide device 100 is assembled to the first end portion 210 (eg, Fig.10 As shown, considering that the bearing has a relatively high requirement for vertical guidance when assembled from the side, the guide device 100 needs to be controlled in the downward direction when assembled. The smooth conical surface is preferably upward, the bolts are on both sides, the coaxiality is finely adjusted, and then the bolts are tightened.

[0075] Then, if Fig.10 Step 1 shown is: after the bearing assembly is heated, it is hoisted next to the axle, the inner hole of the wheel-bearing assembly 300 is heated to the required temperature by an induction heater, and the wheel is quickly hoisted next to the wheel axle.

[0076] like Fig.11The second step shown is: assemble the bearing assembly, apply external force symmetrically, and use the copper rod to apply external force symmetrically with the aid of the guide device 100.

[0077] like Fig.12 Step three shown is: assemble the wheel assembly into place.

[0078] Next, loosen the bolts, remove the guide device 100, and then install the end cover in place to complete the relevant work.

[0079] In summary, the guide device for wheel bearing and shaft assembly of the utility model can realize the rapid positioning of the bearing during horizontal assembly, overcome the obstacle of the inner spacer of the bearing running to the shaft threading process, and is easy to use and has significant effect. At the same time, the guide device can effectively guide the middle spacer of the bearing.

[0080] For those skilled in the art, the above invention disclosure is only used as an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary implementation of the present application.

[0081] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0082] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus facilitate the understanding of one or more embodiments of the invention, in the foregoing description of the embodiments of this application, multiple features are sometimes grouped into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the subject matter of this application requires more features than those mentioned in the claims. In fact, the features of an embodiment are less than all the features of a single embodiment disclosed above.

[0083] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A guide device for assembling a wheel bearing and an axle, characterized in that: The guide device comprises a conical section and a cylindrical section, wherein the conical section is connected to one end of the cylindrical section, and the conical section and the cylindrical section are connected via an arc transition in the middle section; The cylindrical section is mounted to the first end of a wheel axle to be assembled, the first end of the wheel axle is provided with a chamfer, and the diameter of the cylindrical section is smaller than the diameter of the wheel axle and larger than the diameter of the first end.

2. The guide device for wheel bearing and shaft assembly according to claim 1, characterized in that: The conical section and the cylindrical section are integrally formed.

3. The guide device for wheel bearing and shaft assembly according to claim 1, characterized in that: An open countersunk hole is provided on the side of the guide device, and a connecting hole is provided in the open countersunk hole for connecting the guide device and the wheel axle.

4. The guide device for wheel bearing and shaft assembly according to claim 3, characterized in that: A plurality of shaft end threaded holes are formed on the first end portion of the wheel shaft, and the guide device is assembled to the wheel shaft by connecting the connection holes and the shaft end threaded holes via a fixing member.

5. The guide device for wheel bearing and shaft assembly according to claim 3, characterized in that: The two open counterbores are arranged oppositely on two side surfaces of the guide device.

6. The guide device for wheel bearing and shaft assembly according to claim 3, characterized in that: The open counterbore extends from the end of the conical section to the cylindrical section.

7. The guide device for wheel bearing and shaft assembly according to claim 3, characterized in that: A weight-reducing hole is arranged in the guide device.

8. The guide device for wheel bearing and shaft assembly according to claim 7, characterized in that: The weight-reducing hole is close to the center of gravity of the guide device, or the weight-reducing hole is located at the center of gravity of the guide device.

9. The guide device for wheel bearing and shaft assembly according to claim 7, characterized in that: The weight-reducing hole extends from the conical section to the cylindrical section.

10. The guide device for wheel bearing and shaft assembly according to claim 7, characterized in that: The lightening hole is communicated with the open counterbore.

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