CN218946828U - Gear and axle press-fitting device - Google Patents

Abstract

The utility model provides a gear and axle press-fitting device, which comprises a detection module, a control module and an operation module, wherein the output end of the detection module is connected with the input end of the control module, the output end of the control module is connected with the input end of the operation module, the detection module can simultaneously detect the runout of at least two detection positions, and particularly can simultaneously detect the runout of a gear spoke and a wheel hub, and the device also comprises a protection module. The utility model comprises a detection module, wherein the detection module can directly detect the jump of the large gear after the press mounting of the large gear is finished, and a workpiece does not need to be moved, so that the working efficiency is improved; the detection module can simultaneously perform runout detection on the gear spoke and the wheel hub in one detection process, so that the detection efficiency is effectively improved; the utility model comprises a protection module, which can prevent the gear and/or the axle from being knocked to damage in the press mounting process.

Description

Gear and axle press-fitting device

Technical Field

The utility model belongs to the technical field of gear press-fitting, and particularly relates to a gear and axle press-fitting device.

Background

With the development of the high-speed rail industry, a bogie as a running gear is receiving more and more attention. The bogie comprises a welding framework, a foundation braking device, a driving device, a traction device and the like, a gear box is used as an important part on the bogie, one side of the gear box is suspended on the welding framework, and the gear box suspender is used for hoisting; one side is hung on the axle, and is pressed on the axle by utilizing a gear box gear. The gear box transmission adopts a primary reduction gear pair, the traction motor drives the pinion at the input end to rotate through the coupling, the pinion transmits power to the gear through meshing, the gear drives the wheel pair to advance, and the gear box gear plays a role in transmission power, so that the gear and the axle are required to meet the interference fit requirement.

When the gearbox of the motor train unit returns to the factory to carry out advanced repair, the gear needs to be disassembled and then is pressed again, the problems of insufficient pressing force, jumping of a pressing curve, workpiece damage in the pressing process and the like occur in the pressing process, and the gear hub and the gear spoke jumping still need to be measured after the gear pressing is finished.

Disclosure of Invention

The utility model mainly aims to solve the technical problems and provide the gear and axle press-fitting device which can ensure efficient and stable press-fitting of axles and gears.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a gear and axle press-fitting device, which comprises a detection module, a control module and an operation module, wherein the output end of the detection module is connected with the input end of the control module, the output end of the control module is connected with the input end of the operation module, the detection module is provided with a detection unit and a mounting assembly, the detection unit is used for detecting the jump of a workpiece and is mounted on the mounting assembly, the mounting assembly is provided with a switch for controlling the detection module to be opened and closed, and the detection unit is at least two point-type measurement units.

Preferably, the detection module performs runout detection on the gear spoke and the hub at the same time.

Preferably, the mounting assembly comprises:

the base is provided with a switch;

the support rod is connected with the base and extends vertically upwards;

the installation pole, with the bracing piece links to each other, extends along the horizontal direction, the installation pole includes connecting portion and installation department, connecting portion with the bracing piece is connected, detecting element installs on the installation department.

Preferably, the base comprises a magnetic assembly which is fixed on the press-fitting device in a magnetic attraction manner, and/or the base comprises a sucker which is fixed on the press-fitting device.

Preferably, the connecting part of the mounting rod is provided with a connecting hole, and the top of the supporting rod penetrates through the connecting hole and is rotatably connected with the mounting rod.

Preferably, the mounting bar is height-adjustable.

Preferably, the device further comprises a protection module.

Preferably, the protection module is in a cylinder shape matched with the shapes of the wheels and the axles, and is arranged on the gears and/or the axles to prevent the gears and/or the axles from being knocked in the press-fitting process.

The gear and axle press-fitting device provided by the utility model has the following beneficial effects:

1. the utility model comprises a detection module, and can directly detect the jump of the large gear after the press fitting of the large gear is finished, so that the workpiece does not need to be moved, and the working efficiency is improved.

2. The detection module can simultaneously perform runout detection on the gear spoke and the hub in one detection process, and effectively improves detection efficiency.

3. The utility model comprises a protection module, which can prevent the gear and/or the axle from being knocked to damage in the press mounting process.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort.

In the drawings:

FIG. 1 is a schematic diagram of the overall system of a gear and axle press-fitting apparatus of the present utility model;

FIG. 2 is an overall schematic diagram of a detection module according to the present utility model;

FIG. 3 is a schematic view of a detection module mounting bar of the present utility model;

fig. 4 is a schematic diagram of a protection module in the present utility model.

Description of the drawings:

1. a detection module; 11. a mounting rod; 111. a connection part; 1111. a connection hole; 112. a mounting part; 1121. a fixing bolt; 113. a detection unit; 12. a support rod; 13. a base; 131. a switch; 2. a control module; 3. an operation module; 4. a protection module; 41. a sidewall; 42. and a mating part.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The embodiment provides a gear, axle pressure equipment device, and this device is particularly useful for the pressure equipment of EMUs gear wheel, axletree, including control module 2, operation module 3, and control module 2's output links to each other with operation module 3's input, and preferably, links to each other and can communicate each other between control module 2 and the operation module 3, and is further:

the control module 2 receives an instruction input by a user and outputs an execution signal to the operation module 3, or an automatic press-fitting program is preset in the control module 2 and the execution signal is automatically output to the operation module 3;

the operation module 3 receives the execution signal sent by the control module 2 and executes the press-fitting action. Preferably, the operation module 3 includes components such as a hydraulic system, an electric control system, a pressure head device, and the like, and specifically, a person skilled in the art can select a specific component of the operation module and adjust the specific component according to actual situations.

In the press fitting process, an operator can control the device at any time through vision or experience under the condition that a workpiece is possibly damaged, and the press fitting action is stopped.

Preferably, a feedback module (not shown in the figure) is integrated in the operation module 3, and is used for feeding back the data of the press-fitting force and the press-fitting displacement to the control module 2 in the press-fitting process, and an automatic press-fitting program preset in the control module 2 processes the data.

Further preferably, the gear and axle press-fitting device provided in this embodiment may further include a video module (not shown in the figure), where the control module 2 forms a press-fitting curve according to the obtained press-fitting force and the data of the press-fitting displacement according to the change relationship of the press-fitting force along with the press-fitting displacement, and outputs the press-fitting curve through the video module, so that a worker can more intuitively and accurately see the stress and deformation conditions of the workpiece in the press-fitting process, and can more effectively judge the condition of possible damage, and avoid the damage of the workpiece.

Even more preferably, analysis of a large number of press-fit curves on an operation site shows that once the change rate of the press-fit force along with the press-fit displacement is abrupt, the damage to the workpiece is easy to occur, but the change rate of the press-fit force along with the press-fit displacement is reflected on the press-fit curve as a slope of the curve, which can be generally judged by the inclination degree of the press-fit curve, in particular, the press-fit curve is relatively gentle, which indicates that the change rate of the press-fit force along with the press-fit displacement is relatively low, the press-fit curve is relatively steep, which indicates that the change rate of the press-fit force along with the press-fit displacement is relatively high, the press-fit curve suddenly changes from gentle to steep or from steep to gentle, which means that the damage to the workpiece is hard to distinguish on the press-fit curve, and the pre-judgment is difficult. Therefore, the first-order derivation of the press-fit force on the press-fit displacement is performed on the press-fit curve, a curve of the change rate of the press-fit force along with the press-fit displacement (hereinafter referred to as a change rate curve) is formed and is output through the video module, the accuracy of judging the situation that the damage is likely to occur by a worker can be further increased, and compared with the analysis of the press-fit curve, the inflection point of the change rate curve can occur earlier, so that the curve has certain prejudgement property, and the damage to the workpiece can be avoided more favorably.

Still further preferably, the press-fitting curve and the change rate curve of the work piece can be collected without damage, the determination condition of the damage to the work piece can be summarized, and the press-fitting device can automatically perform the action before the damage to the work piece occurs through the automatic press-fitting procedure, for example, the press-fitting action is forcibly stopped when the press-fitting curve or the change rate curve reaches the determination condition of the damage to the work piece. It can be understood that no matter in a manual judgment or automatic program judgment mode, the control method can adopt a range control method, specifically, an early warning range of the judging condition of the damage of the workpiece is set, the equipment gives early warning and outputs through the video output module when the press-fit curve or the change rate curve reaches the early warning range, and audio prompt can be added, so that fine adjustment can be carried out on the press-fit force or the press-fit process through manual adjustment or the equipment automatically, and the damage of the workpiece is avoided.

In some embodiments of the present utility model, the workpiece is pre-processed before press-fitting, and in the following, taking a gear box large gear and an axle of a motor train unit as examples, the pre-processing process includes:

s1, measuring the sizes of an axle large gear seat and an inner hole of a large gear, and selecting and matching to meet the interference requirement;

s2, polishing and repairing the axle large gear seat;

s3, polishing and repairing the axle guide end;

s4, cleaning the repaired axle surface by using alcohol;

s5, roughness measurement is carried out on the surface of the axle, so that corresponding requirements are met;

s6, smearing lubricating grease on the axle large gear seat;

s7, polishing and repairing the inner hole of the large gear, and cross polishing the inner hole of the large gear;

s8, polishing and repairing the guide end of the inner hole of the large gear and the oil groove;

s9, cleaning an inner hole of the large gear by using alcohol;

s10, measuring the roughness of an inner hole of a large gear, wherein the requirement meets the requirement;

s11, smearing lubricating grease on an inner hole of a large gear;

and S12, pressing the axle and the large gear lifting value pressing machine.

The materials of the gears and the axles are often hard but have poor toughness, that is, the workpieces have high strength but are easily damaged when being collided, so in some preferred embodiments of the utility model, as shown in fig. 4, the gears and the axles press-mounting device further comprise a protection module 4 for preventing damage caused by collision of the gears and/or the axles during the press-mounting process.

Further, the protection module 4 is of a cylindrical structure matched with diameters of wheels and axles, and comprises a side wall 41, the protection module is installed on the gear when in use, one end of the protection module 4 is provided with a matching part 42 matched with the shape of the end part of the gear, and after the protection module is installed, the gear and axles are pressed and assembled, so that the collision of the big gear of the axles is avoided.

Preferably, the protection module 4 is formed integrally from a sheet material, and has higher strength.

Further preferably, the gear and axle press-fitting device is provided with a storage space for storing and preserving the protection module, and the protection module is convenient to take.

The gear hub and the gear spoke runout are required to be measured after the gear press-fitting is finished, particularly, after the axle and the large gear of the motor train unit are press-fitted, the weight of the gear hub and the gear spoke runout is difficult to move, so that in some preferred embodiments of the utility model, the gear and axle press-fitting device further comprises a detection module 1, the runout measurement can be carried out in situ, and the detection efficiency is improved.

Further, as shown in fig. 1, the gear and axle press-fitting device in this embodiment includes a detection module 1, a control module 2, and an operation module 3, where an output end of the detection module 1 is connected to an input end of the control module 2, an output end of the control module 2 is connected to an input end of the operation module 3, and control methods of the control module 2 and the operation module 3 are referred to the foregoing and are not described herein again. The detection module 1 transmits the detected runout data of the components such as the gear spoke, the hub and the like to the control module 2, and preferably the control module also comprises a video module, and the control module 2 outputs the data through the video module after carrying out visual processing, or the control module 2 outputs related data to a computer, a server or other intelligent equipment connected with the control module.

As shown in fig. 2 to 3, the inspection module 1 has an inspection unit 113 and an installation assembly, the inspection unit 113 performs the runout inspection of the workpiece, and the inspection unit 113 is installed on the installation assembly, the installation assembly has a switch for controlling the inspection module 1 to be opened and closed, specifically, the installation assembly includes a base 13, a support rod 12 and an installation rod 11 connected in sequence, wherein the support rod 12 extends upward in a vertical direction, the installation rod 11 extends in a horizontal direction, preferably, the installation rod 11 and the support rod 12 are both in a cylindrical structure, more preferably, the installation rod 11 has a connection hole 1111, the top end of the support rod 12 passes through the connection hole 1111, so that the installation rod 11 can rotate with the support rod 12 as an axis, and preferably, a height adjusting member is provided on the installation rod 11 and/or the support rod 12, so that the height of the installation rod 11 can be adjusted.

Further, the mounting rod 11 has a connection portion 111 and a mounting portion 112, the connection portion 111 is located at an end of the mounting rod 11 near the support rod 12, the connection hole 1111 is located at the connection portion 111, and the connection portion 111 is connected to the mounting rod 11. The mounting portion 112 is located at an end of the mounting bar 11 remote from the support bar 12, and the mounting portion 112 is used to mount the detecting unit 113, preferably, in order to facilitate the mounting of the detecting unit 113, both the top and bottom of the mounting portion 112 are flattened. Further preferably, the detection unit 113 is fixed to the mounting portion 112 by a fixing bolt 1121.

Furthermore, the detecting unit 113 detects the jump of the workpiece below the detecting unit, and transmits the detected data to the control module 2 through a data line or a wireless connection, or other devices for data processing, such as a computer, a server, a smart phone, etc.

It will be appreciated that when the detecting unit 113 is a dot type detecting unit and the number is 1, a single workpiece position may be detected, and when both the gear hub and the spoke need to be detected, two tests are required, and the relative positions of the detecting unit 113 and the workpiece are moved, the following manner may be adopted for the movement: 1) The detection unit 113 may be moved by providing a slide rail structure on the mounting portion 112, or by providing a plurality of mounting points for changing the positions of the detection unit 113 on the mounting portion 112; 2) The mounting rod 12 is of a telescopic structure, and the connecting part 111 and the mounting part 112 can form a nested structure to generate relative displacement, so that the position of the detection unit 113 is changed; 3) The entire detection module 1 is moved. Those skilled in the art can make a selection from the above, and can also use other modes, not limited herein.

Preferably, the detecting units 113 are dot type detecting units, and the number is at least 2, or the detecting units 113 are line type detecting units, and with this embodiment, it is possible to perform the beat detection on at least two detecting positions at the same time. More preferably, the detection module 1 can detect runout of the gear spokes and the hub at the same time. Therefore, the gear spokes and the wheel hub can be subjected to runout detection in one detection process, and the detection efficiency is effectively improved.

As shown in fig. 2, the base 13 has a switch 131 for controlling the opening and closing of the detection module 1. Further, the detection module 1 is fixed on the press-fitting device through the base 13. Preferably, the detection module 1 includes a magnetic component, and is fixed on the press-fitting device by means of magnetic attraction, or has a sucker structure, and is fixed by means of a sucker, or is fixed by means of a screw, or is glued, or can be formed by integrally forming the base and the press-fitting device, and a person skilled in the art can adopt an optimal fixing manner according to the use situation, and is not limited herein.

As mentioned above, similar technical solutions can be derived from the solution content presented in connection with the figures. However, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims (8)

1. The utility model provides a gear, axletree pressure equipment device, the device includes detection module, control module, operation module, its characterized in that: the output end of the detection module is connected with the input end of the control module, the output end of the control module is connected with the input end of the operation module, the detection module is provided with a detection unit and a mounting assembly, the workpiece is subjected to jumping detection through the detection unit, the detection unit is mounted on the mounting assembly, the mounting assembly is provided with a switch for controlling the detection module to be opened and closed, and the detection unit is at least two point-type measuring units.

2. The gear, axle press-fit device of claim 1, wherein: the detection module is used for detecting the runout of the gear spokes and the hub.

3. The gear, axle press-fit device of claim 1 or 2, wherein the mounting assembly comprises:

the base is provided with a switch;

the support rod is connected with the base and extends vertically upwards;

the installation pole, with the bracing piece links to each other, extends along the horizontal direction, the installation pole includes connecting portion and installation department, connecting portion with the bracing piece is connected, detecting element installs on the installation department.

4. A gear, axle press-fit device as claimed in claim 3, wherein: the base comprises a magnetic force component which is fixed on the press-fitting device in a magnetic attraction mode, and/or the base comprises a sucker which is fixed on the press-fitting device.

5. A gear, axle press-fit device as claimed in claim 3, wherein: the connecting part of the mounting rod is provided with a connecting hole, and the top of the supporting rod penetrates through the connecting hole and is rotatably connected with the mounting rod.

6. The gear and axle press-fitting device according to claim 5, wherein: the height of the mounting rod is adjustable.

7. The gear, axle press-fit device of claim 1, wherein: the apparatus also includes a protection module.

8. The gear and axle press-fit device according to claim 7, wherein: the protection module is in a cylinder shape matched with the shapes of the wheels and the axles, and is arranged on the gears and/or the axles to prevent the gears and/or the axles from being knocked in the press mounting process.

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