Driving device force transmission pin press machine

Abstract

The utility model discloses a driving device force transmission pin press machine, and belongs to the technical field of railway locomotives. Comprising a main body framework, a hydraulic system, a fixing structure, a moving mechanism, a safety limiting mechanism and an overturning table, the main body framework and the hydraulic system are mounted in an area above the fixed structure; the moving mechanism is arranged above the overturning table; the moving structure is fixedly connected with the fixed structure through the safety limiting mechanism; the main body framework comprises a press body and a pressure cylinder; the hydraulic system drives the pressure cylinder arranged in the press body to move; the moving structure comprises a slide way; the slide way is arranged in the side face area of the fixing structure. By means of the slidable hydraulic press-fitting mechanism on the driving overturning table, stable and controllable press-fitting operation is achieved, and accurate and lossless press-fitting of a force transmission pin in a vehicle type complex wheel pair structure is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of railway locomotive technology, specifically relates to a driving device transmission force pin press. BACKGROUND

[0002] In the manufacture and maintenance of railway locomotives, advanced electric locomotive models such as SS7D, SS7E, and SS8 have extremely complex wheelset designs for their drive device structures, integrating high-precision mechanical components and advanced transmission technologies to ensure the stability and efficiency of trains at high speeds. The wheelsets of these models not only bear the entire weight of the vehicle but also directly transmit traction and braking forces through the built-in drive devices, serving as the core components for power transmission and control of trains. In this complex structure, the transmission force pin, as a key component connecting the wheelset and the drive device, directly affects the performance and lifespan of the entire drive system in terms of installation precision and reliability. However, due to the special nature of the wheelset structure of these models, traditional presses face significant challenges in the process of pressing the transmission force pin.

[0003] Traditionally, presses are mainly divided into two categories: fixed presses and frame presses. Both have significant limitations when dealing with complex wheelset structures. Fixed presses, as the name suggests, have fixed installation positions and cannot be flexibly adjusted according to the specific positions of workpieces, which brings great inconvenience in actual operation. Especially when dealing with the wheelsets of models such as SS7D / SS7E / SS8, due to their large size and compact structure, precise assembly often needs to be done in limited space. The fixed nature of fixed presses makes it difficult for them to adapt to such variable working environments, and they cannot ensure that the transmission force pin is accurately pressed into place. In addition, fixed presses often have difficulty controlling the direction and uniformity of pressure when applying pressure, increasing the risk of damage to the transmission force pin due to uneven stress.

[0004] On the other hand, frame presses, although to some extent solve the problem of mobility, their frame structure can be adjusted to some extent according to needs, but they have obvious shortcomings in load-bearing capacity. When designing this type of press, more attention is paid to flexibility rather than load-bearing capacity. Therefore, when facing the pressing task of large and heavy transmission force pins on the wheelsets of SS7D / SS7E / SS8 models, they often lack the necessary strength and cannot provide stable and sufficient pressure, resulting in poor pressing effect, and even the possibility of damaging other parts of the wheelset structure due to excessive pressure. In addition, frame presses also have difficulty in accurately controlling the direction of pressure during operation, making the transmission force pin prone to head breakage and other quality problems due to deviation of the stress direction from the expected direction during installation. This not only increases the cost and time of rework, but also may pose a potential threat to the safety of the entire drive system. SUMMARY

[0005] In view of the problem that the traditional press machine is difficult to realize the accurate and non-destructive press fitting of the transmission pin in the complex wheel set structure of the SS7D / SS7E / SS8 vehicle type due to the insufficient fixing, bearing capacity or flexibility in the prior art, the utility model provides a kind of driving device transmission pin press machine, using slidable hydraulic press fitting mechanism on driving turnover platform, realizes stable, controllable press fitting operation, guarantees the accurate and non-destructive press fitting of the transmission pin in the complex wheel set structure of the vehicle type.

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme.

[0007] The utility model provides a kind of driving device transmission pin press machine, including main body framework, hydraulic system and fixed structure, moving mechanism, safety limiting mechanism and turnover platform;The main body framework and the hydraulic system are installed in the upper region of the fixed structure;The moving mechanism is arranged above the turnover platform;The moving mechanism is fixedly connected between the safety limiting mechanism and the fixed structure;The main body framework includes press machine body and pressure cylinder;The hydraulic system drives the pressure cylinder movement arranged in the press machine body;The moving mechanism includes slide;The slide is arranged in the side area of the fixed structure.

[0008] Optionally, the press machine body includes a horizontal support and a vertical support;The bottom of the vertical support is connected with the fixed structure;The top of the vertical support is connected with one end of the horizontal support;The other end of the horizontal support is provided with a first hole;The pressure cylinder is arranged in the first hole;The central axis of the first hole is perpendicular to the fixed structure.

[0009] Optionally, the hydraulic system includes a hydraulic oil tank, an oil tank base and an oil pump;The hydraulic oil tank is arranged on the oil tank base;The hydraulic oil tank is connected with the oil pump.

[0010] Optionally, the fixed structure includes a press machine base;The bottom of the press machine body is mounted on the press machine base;The oil tank base is fixed on the press machine base.

[0011] Optionally, the fixed structure further includes a positioning block;The positioning block is arranged in the front end region of the press machine base.

[0012] Optionally, the slide includes a first slide and a second slide;The first slide is arranged on one side of the press machine base;The second slide is arranged on the other side of the press machine base.

[0013] Optionally, the safety limiting mechanism includes an index pin;The index pin is used for fixing the slide and the fixed structure.

[0014] Optionally, a limit stop is arranged on the index pin.

[0015] Optionally, the press body is further provided with an oil pressure gauge for detecting the hydraulic system state.

[0016] Optionally, the press body is further provided with a control switch for controlling the hydraulic system action.

[0017] Compared with the prior art, the drive device power pin press has the following beneficial effects:

[0018] The drive device power pin press provided by the utility model, through main body frame, hydraulic system, fixed structure, moving mechanism, safety limiting mechanism and turnover table, aims at the problems of traditional press in fixing, insufficient bearing capacity and lack of flexibility when power pin is pressed in complex wheel set structure of SS7D / SS7E / SS8 etc. vehicle type. The main body frame and the hydraulic system are installed above the fixed structure, which ensures the stability and efficiency of equipment operation. At the same time, the moving mechanism is introduced, which is arranged above the turnover table and is stably connected with the fixed structure through the safety limiting mechanism. The moving mechanism not only greatly improves the flexibility of operation, but also ensures the safety and accuracy in the operation process. The slide in the moving mechanism is arranged in the side area of the fixed structure, so that the hydraulic pressing mechanism can slide smoothly on the turnover table, thereby accurately positioning and acting on the power pin in the complex wheel set structure, avoiding the damage problem caused by inaccurate positioning or excessive pressure in the traditional pressing mode.

[0019] Further, the hydraulic system drives the pressure cylinder to move accurately in the press body, ensuring that the force output in the pressing process is not only strong but also controllable, which can perfectly adapt to the pressing needs of the power pin in the wheel set structure of different vehicle types, greatly improving the success rate and efficiency of pressing operation.

[0020] Further, the coordinated operation of the moving mechanism and the turnover table not only realizes the three-dimensional flexible adjustment of the pressing work, but also simplifies the power pin pressing process of the wheel set bottom or difficult-to-reach parts through the turnover function, reduces manual intervention and reduces the operation difficulty and labor intensity. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the utility model disclosure in any way. In the drawings:

[0022] Figure 1 It is a whole schematic view of the drive device power pin press of the utility model;

[0023] Figure 2 It is a pressing use schematic view of the drive device power pin press of the utility model.

[0024] In the figure, 1 is a press body; 11 is an oil pressure gauge; 12 is a pressure cylinder; 121 is a first hole; 13 is a control switch; 2 is a press base; 31 is a dividing pin; 32 is a limit stop; 4 is a safety stop plate; 5 is a positioning block; 61 is a hydraulic oil tank; 62 is a tank base; 63 is an oil pump; 711 is a first sliding way; 712 is a second sliding way; 72 is a roller; 8 is a turnover table; 9 is a driving device fixing base; 101 is a rotating disc; 102 is a force transmission pin; 103 is a hollow shaft. DETAILED DESCRIPTION

[0025] In order to make the personnel in the technical field better understand the technical solutions in the utility model, the technical solutions in the utility model will be clearly and completely described below in combination with the drawings in the utility model, and the described embodiments are only some of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative efforts should belong to the protection scope of the utility model.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] In view of the problem that the traditional press in the prior art is difficult to realize accurate and non-destructive press fitting of the force transmission pin in the complex wheel set structure of the SS7D / SS7E / SS8 and other vehicle models due to insufficient fixation, bearing capacity or flexibility, the utility model provides a driving device force transmission pin press, which comprises a main frame, a hydraulic system and a fixing structure, a moving mechanism, a safety limiting mechanism and a turnover table 8.

[0028] As shown in Figure 1 The main frame and the hydraulic system are installed above the fixing structure, the moving mechanism is arranged at the side of the fixing structure and is used to drive the fixing structure to move, the moving mechanism and the fixing structure are fixed through the safety limiting mechanism, and the moving mechanism is installed on the turnover table 8.

[0029] The main frame comprises a press body 1 and a pressure cylinder 12.

[0030] The press body 1 comprises a transverse support and a longitudinal support. One end of the longitudinal support is connected with the end of the transverse support; the other end of the longitudinal support is connected with the fixed structure; the front end region of the transverse support is provided with a first hole 121, which is parallel to the longitudinal support and perpendicular to the fixed structure. The pressure cylinder 12 is arranged in the first hole 121, and the longitudinal support of the press body 1 is further provided with a control switch 13 for controlling the pressure cylinder 12 to act.

[0031] The hydraulic system comprises a hydraulic oil tank 61, a tank base 62 and an oil pump 63.

[0032] The hydraulic oil tank 61 is arranged on the tank base 62, and is connected with the oil pump 63 and the oil pressure gauge 11. The oil pressure gauge 11 is arranged on the longitudinal support of the press body 1.

[0033] The pressing force of the hydraulic system required by the calculation of the size and interference of the force transmission pin is determined according to the related setting parameters. The lifting of the pressure cylinder 12 is realized by the circuit control of the oil pump 63, and the pressing work of the force transmission pin 102 is completed. The oil pressure gauge 11 is installed to monitor the change process of the pressing force.

[0034] The fixed structure comprises a press base 2 and a positioning block 5.

[0035] The press body 1 and the tank base 62 are fixedly installed on the press base 2, the front end of the press base 2 is provided with a safety stop plate 4, and the positioning block 5 is arranged on the press base 2 below the first hole 121.

[0036] The moving mechanism comprises a slide and a roller 72.

[0037] The slide is arranged on the side of the press base 2 and is parallel to the longitudinal support. The roller 72 is arranged between the slide and the press base 2. The slide is provided with a slide mounting hole in the upper region, and the press base 2 is provided with a base mounting hole on the side. The slide mounting hole and the base mounting hole are oppositely arranged.

[0038] The slide comprises a first slide 711 and a second slide 712.

[0039] The first slide 711 is arranged on one side of the press base 2, and the second slide 712 is arranged on the other side of the press base 2. A plurality of rollers 72 are arranged between the first slide 711 and the press base 2, and a plurality of rollers 72 are arranged between the second slide 712 and the press base 2.

[0040] The safety limiting mechanism comprises an index pin 31 and a limiting stop 32.

[0041] The indexing pin 31 passes through the slide mounting hole to the base mounting hole, and the limit stop 32 is fixed on the indexing pin 31 to fix the press base 2 to the slide.

[0042] like Figure 2 As shown, the slide is mounted on the tilting table 8 below, and the front end area of ​​the tilting table 8 is provided with a drive device fixing seat 9. The drive device fixing seat 9 can be extended and retracted, and the drive device fixing seat 9 can extend to the bottom of the first hole 121.

[0043] This application utilizes a sliding hydraulic pressing mechanism on the drive tilting table 8 to achieve a smooth and controllable pressing operation, ensuring the precise and non-destructive pressing of the force transmission pins in the complex wheelset structure of the vehicle model.

[0044] Hollow shaft 103 is installed in positioning block 5. Drive device fixing seat 9 presses against the lower end face of the pin hole of hollow shaft 103 for fit. The size of positioning block 5 at the front end of press base 2 is determined according to the diameter of hollow shaft 103.

[0045] The same number of rollers 72 are installed on both sides of the press base 2, and a slide is set in the area above the tilting table 8 to realize the back and forth sliding of the press. The positions of the two ends of the slide are limited by the indexing pin 31, and a safety stop plate 4 is also set in the front area of ​​the press base 2 to limit the press body 1 from two aspects to prevent it from falling off the track and ensure safety.

[0046] This application utilizes a tilting table 8 as a positioning and clamping device for the press. A sliding hydraulic pressing mechanism is designed on the upper plane of the tilting table 8, allowing the press to slide back and forth. When pressing is needed, it is pushed to the pressing position; when not in use, it is pushed back to the rear of the tilting table, without affecting the original tilting table's function of rotating the drive device. Mechanical pressing provides stable pressing speed and controllable pressure, with a maximum pressing force of 30T. It also ensures that the pressing force is perpendicular to the pressing plane of the force transmission pin 102, resulting in uniform force distribution on the force transmission pin. This effectively avoids the head of the force transmission pin breaking off during manual hammering, thus preventing rework, and also avoids damage to the force transmission pin hole during manual hammering. Rotating disks 101 are provided at both ends of the force transmission pin 102, and the rotating disks 101 are fixed to the wheels.

[0047] This invention enables the press-fitting of force transmission pins in six-link wheel sets of locomotives such as the SS7D, SS7E, and SS8 models. It changes the traditional method of manually hammering the force transmission pins during assembly, replacing manual hammering with mechanical work, saving manpower and significantly reducing the workload of employees. The press-fitting efficiency and quality are also greatly improved. Utilizing a sliding hydraulic press-fitting mechanism on a drive tilting platform, a stable and controllable press-fitting operation is achieved, ensuring precise and non-destructive press-fitting of force transmission pins in complex wheel set structures of various locomotive models.

[0048] Many embodiments and many applications other than those described herein will be apparent to those skilled in the art from consideration of the specification and practice of the teachings herein. Thus, the scope of the present teachings should not be limited to the specific embodiments described herein, but should be given the broadest interpretation of the appended claims and the full scope of equivalents thereof. All articles and references including patent applications and publications are herein incorporated by reference for the articles or documents as specifically referenced. Any aspect of the subject matter disclosed herein that is not recited in the claims is hereby abandoned.

[0049] The above is further detailed description of the present application, can not be determined that the specific embodiments of the present application is limited to this, for the ordinary skilled in the art to which the present application belongs, without departing from the concept of the present application, can also make a number of simple deduction or replacement, all should be regarded as belonging to the present application by the claims submitted to determine the scope of protection.

Claims

1. A drive device force transmission pin press, characterized in that, Including the main frame, hydraulic system and fixed structure, moving mechanism, safety limit mechanism and tilting table (8); The main frame and the hydraulic system are installed in the area above the fixed structure; the moving mechanism is located above the tilting table (8); the moving mechanism and the fixed structure are fixedly connected by the safety limiting mechanism; The main frame includes a press body (1) and a pressure cylinder (12). The hydraulic system drives the pressure cylinder (12) located in the press body (1) to move; The moving mechanism includes a slide rail; The slide is located on the side area of ​​the fixed structure.

2. The drive device force transmission pin press according to claim 1, characterized in that, The press body (1) includes a transverse support and a longitudinal support; The bottom of the longitudinal support is connected to the fixed structure; the top of the longitudinal support is connected to one end of the transverse support. The other end of the transverse support is provided with a first hole (121). The pressure cylinder (12) is disposed in the first hole (121); The central axis of the first hole (121) is perpendicular to the fixed structure.

3. A drive device force transmission pin press according to claim 1, characterized in that, The hydraulic system includes a hydraulic oil tank (61), an oil tank base (62), and an oil pump (63). The hydraulic oil tank (61) is mounted on the tank base (62); The hydraulic oil tank (61) is connected to the oil pump (63).

4. A drive device force transmission pin press according to claim 3, characterized in that, The fixed structure includes a press base (2); The bottom of the press body (1) is mounted on the press base (2); The oil tank base (62) is fixed on the press base (2).

5. A drive device force transmission pin press according to claim 4, characterized in that, The fixing structure also includes a positioning block (5); The positioning block (5) is located in the front end area of ​​the press base (2).

6. A drive device force transmission pin press according to claim 4, characterized in that, The slide includes a first slide (711) and a second slide (712); The first slide (711) is disposed on one side of the press base (2); The second slide (712) is located on the other side of the press base (2).

7. A drive device force transmission pin press according to claim 1, characterized in that, The safety limit mechanism includes an indexing pin (31); The indexing pin (31) is used to fix the slide rail to the fixing structure.

8. A drive device force transmission pin press according to claim 7, characterized in that, The indexing pin (31) is provided with a limit stop (32).

9. A drive device force transmission pin press according to claim 1, characterized in that, The press body (1) is also equipped with an oil pressure gauge (11) for detecting the status of the hydraulic system.

10. A drive device force transmission pin press according to claim 1, characterized in that, The press body (1) is also equipped with a control switch for controlling the operation of the hydraulic system.

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