Connecting pin press fitting device

Abstract

The utility model relates to the field of tools, and provides a connecting pin press-fitting device. The connecting pin press-fitting device comprises a pressurizing piece. The first end of the connecting rod is connected to the pressurizing piece; the connecting rod penetrates through the press-fitting sleeve, and the end face, deviating from the pressurizing piece, of the press-fitting sleeve is suitable for abutting against a web of the wheel set; the positioning sleeve is movably connected to the end, away from the pressurizing part, of the press-fitting sleeve, the second end of the connecting rod is connected to the positioning sleeve and the connecting pin, the pressurizing part is suitable for driving the connecting pin to be switched to the assembling position from the separating position, the positioning sleeve is located in a web hole of the wheel set at the separating position, and the connecting pin is located in the web hole of the wheel set at the assembling position. According to the connecting pin press-fitting device, the accurate position of the connecting pin in the press-fitting process is ensured, and press-fitting failure or wheel set damage caused by position deviation is avoided. The operation process is simple and fast, and the operation difficulty is low.

Description

Technical Field

[0001] This utility model relates to the field of tooling and provides a connecting pin press-fitting device. Background Technology

[0002] In related technologies, some rail vehicles use a hollow axle frame suspension method to mount the drive motor. Specifically, a hollow axle is mounted on the axle of the wheelset, and the hollow axle is connected to the wheel and drive gear through a six-bar linkage and elastic elements. This connection method presents many challenges in actual assembly. Traditional assembly methods involve fixing the axle on a platform, cleaning and lubricating the surface, and using process bolts to pull in the connecting pin. However, this method is labor-intensive, has a long production cycle, and makes it difficult to guarantee the accuracy of coaxial positioning. In addition, in the initial stage of pressing in the connecting pin, because only part of the thread is stressed, it is easy to cause the internal thread of the wheel axle connecting pin to be strained, deformed, or even scrapped, resulting in serious quality problems.

[0003] To address these challenges and achieve precise coaxial positioning and high-quality assembly, it is necessary to introduce a new press-fitting technology for connecting pins and develop a press-fitting fixture specifically designed for wheel and axle connecting pin assembly. Traditional manual press-fitting techniques and equipment cannot meet the demands of current working conditions, especially under the requirements of high-precision and high-efficiency assembly. Problems such as uneven pressing force and inaccurate positioning are prone to occur during the press-fitting process, necessitating the development of a press-fitting fixture that can effectively solve these problems. Utility Model Content

[0004] This utility model provides a connecting pin pressing device to solve the defects of time-consuming and labor-intensive connecting pin pressing in related technologies.

[0005] This utility model embodiment provides a connecting pin press-fitting device, including:

[0006] Pressure components;

[0007] A connecting rod, the first end of which is connected to the pressure member;

[0008] A press-fit sleeve, through which the connecting rod passes, and the end face of the press-fit sleeve facing away from the pressure member is adapted to abut against the web of the wheelset;

[0009] A positioning sleeve is movably connected to one end of the press-fit sleeve away from the pressure member. The second end of the connecting rod is connected to the positioning sleeve and the connecting pin. The pressure member is adapted to drive the connecting pin from a separated position to an assembled position. In the separated position, the positioning sleeve is located in the web hole of the wheelset. In the assembled position, the connecting pin is located in the web hole of the wheelset.

[0010] According to one embodiment of the present invention, a reset member is provided in the press-fit sleeve, and the second end of the connecting rod passes through the press-fit sleeve and the reset member. The reset member is adapted to drive the positioning sleeve to switch from the assembly position to the separation position.

[0011] According to one embodiment of the present invention, the press-fit sleeve is provided with a receiving cavity, and the end of the receiving cavity opposite to the pressurizing member is provided with a stepped surface. The two ends of the reset member abut against the bottom wall of the receiving cavity and the stepped surface, respectively.

[0012] According to one embodiment of the present invention, the side wall of the receiving cavity is provided with an elongated groove, the positioning sleeve is provided with an installation hole, a positioning pin is provided in the installation hole, and the positioning pin passes through the elongated groove.

[0013] According to one embodiment of the present invention, there are multiple long slots, which are spaced apart circumferentially along the receiving cavity, and the number of positioning pins corresponds one-to-one with the number of long slots.

[0014] According to one embodiment of the present invention, the connecting pin is provided with a threaded hole, and the second end of the connecting rod is provided with a first external thread section that is threaded to fit the thread of the threaded hole.

[0015] According to one embodiment of the present invention, the positioning sleeve has a light hole, and the connecting rod passes through the light hole.

[0016] According to one embodiment of the present invention, the first end of the connecting rod is provided with a second external thread section, and the second end of the connecting rod is connected to the pressure member through the second external thread section.

[0017] According to one embodiment of the present invention, a locking element is provided on the first end of the connecting rod that protrudes from the segment of the pressure member.

[0018] According to one embodiment of the present invention, an anti-loosening pad is provided between the locking member and the pressure member.

[0019] According to the connecting pin pressing device provided in this embodiment of the utility model, the accurate position of the connecting pin during the pressing process is ensured by the pre-positioning of the positioning sleeve, avoiding pressing failure or wheelset damage caused by positional deviation. The design of this connecting pin pressing device makes the pressing process of the connecting pin simpler and faster, reduces operational difficulty, and improves work efficiency. The pressure-applying component forms a stable pressure transmission chain with the pressing sleeve, positioning sleeve, and connecting pin through the connecting rod, ensuring stable pressure during the pressing process and improving pressing quality. The structural design of this connecting pin pressing device is flexible and can be adjusted according to the specifications of different wheelsets and connecting pins, possessing strong versatility and adaptability. The connecting pin pressing device provided in this embodiment of the utility model can improve pressing accuracy, simplify the operation process, enhance pressing stability and adaptability in the pressing operation of wheelset connecting pins, providing strong technical support for wheelset assembly and maintenance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic exploded view of the connecting pin press-fitting device provided by this utility model.

[0022] Figure 2 This is a schematic perspective view of the press-fit sleeve provided by this utility model.

[0023] Figure 3 This is a schematic perspective view of the positioning sleeve provided by this utility model.

[0024] Figure 4 This is a schematic perspective view of the wheelset provided by this utility model.

[0025] Figure 5 This is a schematic perspective view of the connecting pin provided by this utility model.

[0026] Figure label:

[0027] 100. Pressing component; 102. Connecting rod; 104. Press-fit sleeve; 106. Wheelset; 108. Positioning sleeve; 110. Connecting pin; 112. Reset component; 114. Long groove; 116. Mounting hole; 118. Positioning pin; 120. Locking component; 122. Anti-loosening pad. Detailed Implementation

[0028] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0029] like Figures 1 to 5 As shown, this utility model embodiment provides a connecting pin press-fitting device, including:

[0030] Pressure component 100;

[0031] Link 102, the first end of which is connected to pressure member 100;

[0032] The press-fit sleeve 104, the connecting rod 102 passes through the press-fit sleeve 104, and the end face of the press-fit sleeve 104 away from the pressure member 100 is adapted to abut against the web of the wheelset 106.

[0033] The positioning sleeve 108 is movably connected to one end of the press-fit sleeve 104 away from the pressure member 100. The second end of the connecting rod 102 is connected to the positioning sleeve 108 and the connecting pin 110. The pressure member 100 is adapted to drive the connecting pin 110 from the separated position to the assembled position. In the separated position, the positioning sleeve 108 is located in the web hole of the wheelset 106. In the assembled position, the connecting pin 110 is located in the web hole of the wheelset 106.

[0034] The connecting pin pressing device provided in this embodiment of the invention aims to efficiently and accurately complete the pressing operation of the connecting pin 110 in the web hole of the wheelset 106. The connecting pin pressing device mainly includes the following components:

[0035] The pressure-applying component 100 serves as a power source, providing the pressure required for press fitting. The pressure-applying component 100 can be a hydraulic cylinder, a pneumatic cylinder, or other mechanical device capable of providing stable pressure.

[0036] As a key component connecting the pressure member 100 and the press-fit sleeve 104, the first end of the connecting rod 102 is firmly connected to the pressure member 100 to ensure that the pressure generated by the pressure member 100 can be transmitted to the press-fit sleeve 104.

[0037] The press-fit sleeve 104 is fitted onto the connecting rod 102, and its end face facing away from the press-fit member 100 is designed to abut against the web of the wheelset 106. The structure and material selection of the press-fit sleeve 104 should ensure that it can provide sufficient support during the press-fitting process while avoiding damage to the web.

[0038] The positioning sleeve 108 is movably connected to the end of the press-fit sleeve 104 opposite to the pressure member 100. The positioning sleeve 108 is designed to be pre-positioned in the web hole of the wheelset 106 before press-fitting, serving to guide and position the connecting pin 110.

[0039] The connecting pin 110 is the component to be press-fitted, and it is connected to the positioning sleeve 108 and the pressure member 100 through the second end of the connecting rod 102. During the press-fitting process, the connecting pin 110 is pushed by the pressure member 100, and it switches from the separated position (at which time the positioning sleeve 108 is located in the web hole) to the assembled position (at which time the connecting pin 110 is fully inserted into the web hole).

[0040] During the press-fitting process, the press-fitting sleeve 104 is first placed against the web of the wheelset 106. Then, the connecting pin 110 is connected to the second end of the connecting rod 102. Next, the pressurizing component 100 is activated, causing the pressurizing component 100 to move the positioning sleeve 108 and the connecting pin 110 from the separated position to the assembled position. When the positioning sleeve 108 comes out of the hole in the web of the wheelset 106, the pressurizing component 100 slowly applies pressure until the connecting pin 110 is fully inserted into the hole in the web of the wheelset 106. After the press-fitting is completed, the pressurizing component 100 is removed first, and then the connecting rod 102 is removed from the connecting pin 110.

[0041] According to the connecting pin pressing device provided in this embodiment of the present invention, the pre-positioning of the positioning sleeve 108 ensures the accurate position of the connecting pin 110 during the pressing process, avoiding pressing failure or damage to the wheelset 106 due to positional deviation. The design of this connecting pin pressing device makes the pressing process of the connecting pin 110 simpler and faster, reduces operational difficulty, and improves work efficiency. The pressure-applying component 100 forms a stable pressure transmission chain with the pressing sleeve 104, positioning sleeve 108, and connecting pin 110 through the connecting rod 102, ensuring stable pressure during the pressing process and improving pressing quality. The structural design of this connecting pin pressing device is flexible and can be adjusted according to the specifications of different wheelsets 106 and connecting pins 110, exhibiting strong versatility and adaptability. The connecting pin pressing device provided in this embodiment of the present invention can improve pressing accuracy, simplify the operation process, enhance pressing stability and adaptability in the pressing operation of the connecting pin 110 of the wheelset 106, providing strong technical support for the assembly and maintenance of the wheelset 106.

[0042] According to one embodiment of the present invention, a reset member 112 is provided in the press sleeve 104, and the second end of the connecting rod 102 passes through the press sleeve 104 and the reset member 112. The reset member 112 is adapted to drive the positioning sleeve 108 to switch from the assembly position to the separation position.

[0043] In one embodiment of the present invention, a reset member 112 is added inside the press-fitting sleeve 104 in the connecting pin press-fitting device.

[0044] The reset element 112 is disposed within the press-fit sleeve 104. The reset element 112 is typically made of a material with elasticity or recoverable deformation, such as a spring or elastic sheet. The function of the reset element 112 is to help the positioning sleeve 108 and the connecting rod 102 (and the connecting pin 110 connected thereto) return from the assembled position (i.e., the position where the connecting pin 110 has been fully pressed into the web hole of the wheelset 106) to the separated position (i.e., the position where the positioning sleeve 108 is located at the web hole opening, ready for the next press-fit) after press-fitting.

[0045] The second end of the connecting rod 102 is connected not only to the positioning sleeve 108 and the connecting pin 110, but also passes through the press-fit sleeve 104 and the reset member 112. This means that when the pressurizing member 100 applies pressure to push the connecting rod 102, the reset member 112 will be compressed or deformed; and when the pressure is released, the reset member 112 will use its elasticity or restoring force to push the connecting rod 102 (as well as the positioning sleeve 108 and the connecting pin 110) back.

[0046] During the pressing process, the pressure-applying component 100 first drives the positioning sleeve 108 part into the pressing sleeve 104. After the pressing is completed, the pressure-applying component 100 releases the pressure. At this time, the reset component 112 begins to play its role, pushing the positioning sleeve 108 out of the pressing sleeve 104 to prepare for the next pressing.

[0047] The reset element 112 enables the connecting pin pressing device to automatically return to its initial position after pressing, eliminating the need for manual intervention and thus improving automation and work efficiency. Because the connecting pin pressing device can automatically reset, operators only need to control the start and stop of the pressing component 100, without manually moving the positioning sleeve 108 or the connecting pin 110, making operation simpler. The automatic reset function reduces the risk of incorrect positioning of the positioning sleeve 108 or the connecting pin 110 due to operator error or negligence, improving the accuracy and reliability of pressing. Furthermore, the design of the reset element 112 helps to disperse and mitigate stress and impact generated during pressing, thereby protecting the pressing sleeve 104, connecting rod 102, and other related components, extending the overall service life of the device.

[0048] According to one embodiment of the present invention, the press sleeve 104 is provided with a receiving cavity, and the end of the receiving cavity away from the pressurizing member 100 is provided with a stepped surface. The two ends of the reset member 112 abut against the bottom wall of the receiving cavity and the stepped surface, respectively.

[0049] In one embodiment of this utility model, the design of the press sleeve 104 has been further optimized, particularly in the arrangement of the receiving cavity and the stepped surface, as well as the installation method of the reset member 112.

[0050] The press-fit sleeve 104 has a receiving cavity inside, which is used to accommodate the reset member 112 and provide the necessary installation space for the reset member 112. The design of the receiving cavity should ensure that the reset member 112 can freely expand and contract within it, while preventing the reset member 112 from shifting or falling off during the press-fitting process.

[0051] A stepped surface is provided at the end of the receiving cavity opposite to the pressure member 100. The stepped surface is a protruding annular structure, and the inner diameter of the annular boss is smaller than the diameter of the receiving cavity, thus forming a step. This stepped surface provides a stable support surface for the reset member 112, enabling the reset member 112 to transmit force evenly when subjected to pressure, and preventing the reset member 112 from deforming or being damaged during the press-fitting process.

[0052] The two ends of the reset member 112 abut against the bottom wall of the receiving cavity and the stepped surface, respectively. For example, the reset member 112 can be placed directly in the receiving cavity and fixed with appropriate fasteners (such as screws, clips, etc.), or connected to the bottom wall and stepped surface of the receiving cavity by welding, bonding, or other means. The choice of installation method should ensure that the reset member 112 can remain stable and function correctly during the press-fitting process.

[0053] By providing a receiving cavity and a stepped surface, a stable installation environment is provided for the reset component 112, enabling it to maintain stable performance during press-fitting and thus improving the stability and accuracy of the press-fitting process. The two ends of the reset component 112 abut against the bottom wall of the receiving cavity and the stepped surface, respectively. This installation method allows the reset component 112 to transmit force more evenly when subjected to pressure and prevents deformation or damage during press-fitting, thereby optimizing the reset effect.

[0054] According to one embodiment of the present invention, a long groove 114 is provided on the side wall of the receiving cavity, and a mounting hole 116 is provided on the positioning sleeve 108. A positioning pin 118 is provided in the mounting hole 116 and passes through the long groove 114.

[0055] In one embodiment of this utility model, the connection and positioning method between the pressing sleeve 104 and the positioning sleeve 108 of the connecting pin pressing device has been further optimized.

[0056] A long groove 114 is formed on the side wall of the receiving cavity of the press sleeve 104. The design of this long groove 114 allows the positioning pin 118 to have a certain amount of movement space during the press-fitting process, while ensuring that the positioning pin 118 can be accurately positioned in a specific position when needed.

[0057] The positioning sleeve 108 has mounting holes 116 for mounting positioning pins 118. The positioning pin 118 is a mechanical element used for positioning and securing connecting parts. In this embodiment, the positioning pin 118 is installed in the mounting holes 116 of the positioning sleeve 108 and passes through an elongated groove 114 in the receiving cavity sidewall of the press-fit sleeve 104. The design of the positioning pin 118 should ensure that it can move freely in the elongated groove 114 while providing sufficient fixing force to prevent the positioning sleeve 108 from shifting or falling off during the press-fitting process.

[0058] By setting the elongated groove 114 and the positioning pin 118, the positioning sleeve 108 can be accurately positioned in a specific position during the pressing process, thereby improving the positioning accuracy and precision of the pressing. The fixing function of the positioning pin 118 can prevent the positioning sleeve 108 from shifting or falling off during the pressing process, thereby enhancing the stability and reliability of the pressing device.

[0059] According to one embodiment of the present invention, there are multiple long grooves 114, which are arranged at intervals along the circumference of the receiving cavity, and the number of positioning pins 118 corresponds one-to-one with the number of long grooves 114.

[0060] In one embodiment of this utility model, the design of the long groove 114 on the press sleeve 104 of the connecting pin press device has been further optimized.

[0061] Multiple long grooves 114 are formed on the side wall of the receiving cavity of the press-fit sleeve 104. These long grooves 114 are arranged at intervals along the circumference of the receiving cavity, that is, they are evenly distributed or distributed in a certain pattern around the circumference of the receiving cavity.

[0062] The number of locating pins 118 corresponds one-to-one with the number of long slots 114. This means that a locating pin 118 is inserted and fixed in each long slot 114. This design ensures that the locating sleeve 108 can be stably positioned and fixed in multiple directions during the press-fitting process, thereby improving the stability and accuracy of the press-fitting.

[0063] By setting multiple long slots 114 and corresponding positioning pins 118, the positioning sleeve 108 can be stably positioned and fixed in multiple directions during the press-fitting process. This design can greatly improve the stability and accuracy of press-fitting, and reduce the risk of press-fitting failure or damage to the wheelset 106 due to inaccurate positioning. The design of multiple long slots 114 and positioning pins 118 can form a stable support structure to prevent the positioning sleeve 108 from shifting or falling off during the press-fitting process. This design can further enhance the stability and reliability of the press-fitting device. Since the number and distribution of long slots 114 and positioning pins 118 can be adjusted according to different press-fitting requirements and the specifications of the positioning sleeve 108, the device has strong adaptability and flexibility. It can adapt to wheelsets 106 of different sizes and shapes, as well as connecting pins 110 and positioning sleeves 108 of different specifications.

[0064] According to one embodiment of the present invention, the connecting pin 110 is provided with a threaded hole, and the second end of the connecting rod 102 is provided with a first external thread section that is adapted to the thread of the threaded hole.

[0065] In one embodiment of this utility model, a threaded hole is provided on the connecting pin 110. The function of the threaded hole is to provide a connection interface that is adapted to the thread of the connecting rod 102, thereby ensuring a stable connection between the connecting pin 110 and the connecting rod 102.

[0066] The second end of the connecting rod 102 is provided with a first external thread section that is adapted to the threaded hole of the connecting pin 110. This means that the second end of the connecting rod 102 is machined into an external thread with a specific pitch and diameter. The length, diameter, pitch, and other parameters of the first external thread section should match the threaded hole on the connecting pin 110 to ensure that the two can be tightly and stably connected together.

[0067] During assembly, the second end of connecting rod 102 (i.e., the first external threaded section) is screwed into the threaded hole of connecting pin 110. By rotating connecting rod 102, a tight threaded connection is formed between the first external threaded section and the threaded hole. This connection method is not only simple and convenient, but also has high connection strength and stability. Due to the characteristics of threaded connections, it can withstand greater tensile and compressive forces, thereby ensuring the stability and reliability of connecting pin 110 and connecting rod 102 during the press-fitting process.

[0068] The threaded connection between the connecting pin 110 and the connecting rod 102 provides a tighter and more stable connection. This connection method can withstand greater tensile and compressive forces, ensuring the stability and reliability of the connection between the connecting pin 110 and the connecting rod 102 during the press-fitting process. The threaded connection also simplifies the connection process. Operators only need to screw the second end of the connecting rod 102 into the threaded hole of the connecting pin 110 to complete the connection, greatly simplifying the operation. The threaded connection offers high strength and durability. Compared to traditional connection methods, the threaded connection can withstand greater loads and has a longer service life. This not only reduces maintenance costs but also improves the overall performance and reliability of the equipment.

[0069] According to one embodiment of the present invention, a light hole is provided on the positioning sleeve 108, and the connecting rod 102 passes through the light hole.

[0070] In one embodiment of this utility model, a light hole is provided on the positioning sleeve 108. The function of the light hole is to provide a channel so that the connecting rod 102 can smoothly pass into the positioning sleeve 108, thereby realizing the cooperation and connection between the two.

[0071] The connecting rod 102 is designed to pass through the aperture of the positioning sleeve 108. The connecting rod 102 can be inserted directly or through a suitable guide device.

[0072] When the connecting rod 102 passes through the aperture of the positioning sleeve 108, a tight fit is formed between the two. This fit can be a clearance fit.

[0073] The design of the through-hole and connecting rod 102 ensures that the connecting rod 102 remains stably held within the positioning sleeve 108 during the press-fitting process. This design significantly improves the stability and accuracy of the press-fitting. The connecting rod 102 directly passes through the through-hole of the positioning sleeve 108, eliminating the need for additional connecting devices or steps. This greatly simplifies the operation process and improves work efficiency. The design of the through-hole can be adjusted according to different sizes and shapes of the connecting rod 102. This makes the invention applicable to connecting rods 102 and positioning sleeves 108 of different specifications and models, exhibiting strong adaptability and flexibility.

[0074] According to one embodiment of the present invention, the first end of the connecting rod 102 is provided with a second external thread section, and the second end of the connecting rod 102 is connected to the pressure member 100 through the second external thread section.

[0075] In one embodiment of this utility model, the first end of the connecting rod 102 is specially designed to have a second external thread section, and the first end of the connecting rod 102 is machined to have a second external thread section. This means that the outer surface of this section of the connecting rod 102 is machined into a thread shape so as to match the internal threads or other connection structures of the pressure member 100.

[0076] The pressure member 100 is designed to have an internal thread or other connection structure that matches the second external thread section of the connecting rod 102. In this way, when the second external thread section of the connecting rod 102 is screwed into the pressure member 100, the two can form a tight threaded connection.

[0077] The transmission connection between the connecting rod 102 and the pressure member 100 is achieved by engaging the second external thread section with the internal thread of the pressure member 100. When the connecting rod 102 is rotated, its second external thread section moves within the internal thread of the pressure member 100, thereby causing the pressure member 100 to rotate or move accordingly. This transmission connection method has the advantages of simple structure, stable connection, and high transmission efficiency.

[0078] The threaded connection allows for a more direct and efficient transmission between the connecting rod 102 and the pressure member 100. This helps reduce energy loss and frictional losses, improving the overall transmission efficiency of the pressing device. The threaded connection is self-locking, resisting the effects of external loads and vibrations. Therefore, the connection between the connecting rod 102 and the pressure member 100 is more secure and reliable, less prone to loosening or detachment. The connection and transmission with the pressure member 100 can be achieved simply by rotating the connecting rod 102, without the need for additional connectors or tools. This greatly simplifies the operation process and improves work efficiency.

[0079] According to one embodiment of the present invention, a locking member 120 is provided on the first end of the connecting rod 102 that protrudes from the segment of the pressure member 100.

[0080] In one embodiment of the present invention, a locking member 120 is provided on the first end of the connecting rod 102 that protrudes from the segment of the pressure member 100. This design is intended to ensure that the connection between the connecting rod 102 and the pressure member 100 is firm and reliable.

[0081] The first end of the connecting rod 102 is designed to pass through the segment of the pressure member 100. This means that the connecting rod 102 has a certain length and diameter to ensure that it can pass smoothly through the segment of the pressure member 100. The first end of the connecting rod 102 may have a specific shape or structure, such as threads, flanges, etc., to mate and connect with the locking member 120.

[0082] The locking element 120 is installed on the portion of the first end of the connecting rod 102 that protrudes from the segment of the pressure member 100. The function of the locking element 120 is to ensure that the connection between the connecting rod 102 and the pressure member 100 is secure and will not come loose.

[0083] The locking element 120 may take various forms, such as a nut, a locking plate, or a locking wire. These locking elements 120 can cooperate with the connecting rod 102 and the pressure element 100 through threaded connection, clamping, or pressing.

[0084] After the first end of the connecting rod 102 passes through the pressure member 100 segment, it is fixed in the correct position by the locking member 120. The locking member 120 may cooperate with the first end of the connecting rod 102 by means of threaded connection, clamping, pressing, etc., to ensure the stability of the connection.

[0085] The design of the locking element 120 ensures a secure connection between the connecting rod 102 and the pressure member 100, preventing them from falling off. This significantly improves the reliability and safety of the pressing device. The locking element 120 can be adjusted to accommodate different sizes and shapes of the connecting rod 102. This allows the connecting pin pressing device to be applicable to connecting rods 102 and pressure members 100 of different specifications and models, providing strong adaptability and flexibility.

[0086] According to one embodiment of the present invention, an anti-loosening pad 122 is provided between the locking member 120 and the pressure member 100.

[0087] In one embodiment of this utility model, an anti-loosening pad 122 is provided between the locking member 120 and the pressure member 100. This design aims to further enhance the connection stability between the locking member 120 and the pressure member 100 and prevent loosening caused by external factors such as vibration and impact.

[0088] The anti-loosening washer 122 is mainly used to prevent the locking parts 120 (such as nuts, bolts, etc.) from loosening under external loads such as vibration and impact. The anti-loosening washer 122 is placed between the locking parts 120 and the pressure member 100, and then the locking parts 120 are tightened to form a tight connection.

[0089] The anti-loosening washer 122 increases the friction between the locking member 120 and the pressure member 100, thereby preventing loosening. Because the anti-loosening washer 122 reduces the relative movement between the locking member 120 and the pressure member 100, it reduces wear and fatigue damage, extending service life. Using the anti-loosening washer 122 can reduce malfunctions and downtime caused by loosening, thus simplifying maintenance procedures and reducing maintenance costs.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A connecting pin press-fitting device, characterized in that, include: Pressure component (100); Link (102), the first end of which is connected to the pressure member (100). A press-fit sleeve (104) is provided, through which the connecting rod (102) passes. The end face of the press-fit sleeve (104) facing away from the pressure member (100) is adapted to abut against the web of the wheelset (106). A positioning sleeve (108) is movably connected to one end of the press-fit sleeve (104) away from the pressure member (100). The second end of the connecting rod (102) is connected to the positioning sleeve (108) and the connecting pin (110). The pressure member (100) is adapted to drive the connecting pin (110) from the separated position to the assembled position. In the separated position, the positioning sleeve (108) is located in the web hole of the wheelset (106). In the assembled position, the connecting pin (110) is located in the web hole of the wheelset (106).

2. The connecting pin press-fitting device according to claim 1, characterized in that, The press-fit sleeve (104) is provided with a reset member (112), and the second end of the connecting rod (102) passes through the press-fit sleeve (104) and the reset member (112). The reset member (112) is adapted to drive the positioning sleeve (108) to switch from the assembly position to the separation position.

3. The connecting pin press-fitting device according to claim 2, characterized in that, The press-fit sleeve (104) is provided with a receiving cavity, and the end of the receiving cavity away from the pressurizing member (100) is provided with a stepped surface. The two ends of the reset member (112) abut against the bottom wall of the receiving cavity and the stepped surface, respectively.

4. The connecting pin press-fitting device according to claim 3, characterized in that, The side wall of the receiving cavity is provided with an elongated groove (114), and the positioning sleeve (108) is provided with an installation hole (116). A positioning pin (118) is provided in the installation hole (116), and the positioning pin (118) passes through the elongated groove (114).

5. The connecting pin press-fitting device according to claim 4, characterized in that, There are multiple long slots (114), and the multiple long slots (114) are arranged at intervals along the circumference of the receiving cavity. The number of positioning pins (118) corresponds one-to-one with the number of long slots (114).

6. The connecting pin press-fitting device according to any one of claims 1 to 5, characterized in that, The connecting pin (110) has a threaded hole, and the second end of the connecting rod (102) has a first external thread section that is threaded to fit the thread of the threaded hole.

7. The connecting pin press-fitting device according to any one of claims 1 to 5, characterized in that, The positioning sleeve (108) has a light hole, and the connecting rod (102) passes through the light hole.

8. The connecting pin press-fitting device according to any one of claims 1 to 5, characterized in that, The first end of the connecting rod (102) is provided with a second external thread section, and the second end of the connecting rod (102) is connected to the pressure member (100) through the second external thread section.

9. The connecting pin press-fitting device according to claim 8, characterized in that, A locking element (120) is provided on the first end of the connecting rod (102) that extends through the segment of the pressure member (100).

10. The connecting pin press-fitting device according to claim 9, characterized in that, An anti-loosening pad (122) is provided between the locking member (120) and the pressure member (100).

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