Lower side bearing press fitting device

Abstract

The utility model provides a lower side bearing press-fitting device which comprises a workbench, a first positioning block and a second positioning block are oppositely arranged on the working face of the workbench, and the second positioning block is used for positioning a side bearing seat; the limiting part is arranged between the first positioning block and the second positioning block, a limiting space is formed by the limiting part, and the limiting part is used for limiting the side bearing body through the limiting space; the adjusting part is used for adjusting the size of the limiting space of the limiting part according to the size of the side bearing body; and the jacking and pressing part is positioned through the first positioning block, and the jacking and pressing part is used for pushing the side bearing body in the direction close to the second positioning block, so that the side bearing body is assembled on the side bearing seat. By means of the arrangement, the lower side bearing press-fitting device can be suitable for press-fitting operation of lower side bearings of different models and sizes, special tools do not need to be manufactured according to the lower side bearings of different models and sizes, the time cost, the labor cost and the material cost for manufacturing the tools are saved, and the space needed for storing the press-fitting device is saved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of lower side bearing of railway freight car, and particularly relates to a lower side bearing pressing device. BACKGROUND

[0002] In the related art, the elastic lower side bearing body needs to be pressed into the side bearing seat during the manufacturing and repairing process of the railway freight car. The use of the side bearing pressing device can make the side bearing pressing process more smooth and the pressing process more safe. Therefore, the lower side bearing pressing device is widely used in the railway freight car manufacturing and repairing industry. With the continuous increase of various heavy self-weight vehicles, long-stroke elastic lower side bearings will be applied to more and more vehicles. The increase in the types of lower side bearings makes the existing lower side bearing pressing device unsuitable, and corresponding pressing devices need to be manufactured according to different sizes of lower side bearings, resulting in high cost and time cost of pressing device manufacturing and more storage space.

[0003] Therefore, it is necessary to provide a lower side bearing pressing device to at least partially solve the problems in the prior art. SUMMARY

[0004] The present disclosure aims to at least solve one of the technical problems in the prior art or related art.

[0005] To this end, the present disclosure provides a lower side bearing pressing device;

[0006] Therefore, according to the embodiments of the present disclosure, a lower side bearing pressing device is provided, which comprises:

[0007] a workbench, a first positioning block and a second positioning block are oppositely arranged on the working surface of the workbench, wherein the second positioning block is used for positioning the side bearing seat;

[0008] a limiting part arranged between the first positioning block and the second positioning block, the limiting part forms a limiting space, and the limiting part is used for limiting the side bearing body through the limiting space;

[0009] an adjusting part used for adjusting the size of the limiting space of the limiting part according to the size of the side bearing body;

[0010] a pressing part positioned by the first positioning block, and the pressing part is used for pushing the side bearing body towards the second positioning block to assemble the side bearing body in the side bearing seat.

[0011] In a feasible implementation, the limiting part comprises:

[0012] a seat body arranged between the first positioning block and the second positioning block;

[0013] A limiting block is arranged on the seat body and used for abutting against the side bearing body;

[0014] The limiting block is provided with two limiting blocks, and a limiting space is formed between the two limiting blocks. The first opening size of the limiting space towards the first positioning block is greater than the second opening size of the limiting space towards the second positioning block. When the top pressing part pushes the side bearing body to move to the second opening, the elastic part on the side of the side bearing body is compressed to match the assembly size of the side bearing seat.

[0015] In an implementable embodiment, the adjusting part comprises:

[0016] A sliding groove is arranged on the seat body.

[0017] A sliding block is connected to the bottom of the limiting block and is slidingly connected to the sliding groove.

[0018] A driving member is connected to the sliding block and is used for driving the sliding block to move in the sliding groove towards or away from the side bearing body.

[0019] In an implementable embodiment, the driving member comprises:

[0020] A lead screw is arranged on the side of the seat body along the sliding direction of the sliding block. An installation hole is arranged on the side of the seat body along the sliding direction of the sliding block. One end of the lead screw passes through the installation hole and is connected to the sliding block.

[0021] A hand wheel is connected to the other end of the lead screw and is located outside the seat body.

[0022] In an implementable embodiment, the driving member further comprises:

[0023] A self-locking structure is arranged on the lead screw.

[0024] In an implementable embodiment, the driving member is a worm gear mechanism.

[0025] In an implementable embodiment, the top pressing part comprises:

[0026] A rod body is arranged on the first positioning block along the direction towards the second positioning block. A through hole is arranged on the first positioning block. The rod body passes through the through hole.

[0027] A pushing head is connected to one end of the rod body towards the second positioning block and is used for pressing the side bearing body.

[0028] In an implementable embodiment, the top pressing part further comprises:

[0029] A hydraulic structure is connected to the rod body and is used for driving the rod body to move towards or away from the side bearing body.

[0030] In an implementable embodiment, the first positioning block and the second positioning block are welded to the workbench; and / or

[0031] The hand wheel is welded to the screw rod; and / or

[0032] The seat body is welded to the workbench.

[0033] In an implementable embodiment, the device further comprises:

[0034] A pressure sensor is arranged on the limiting block and is used to detect the pressure value applied by the limiting block to the side bearing body.

[0035] Compared with the prior art, the present disclosure at least has the following beneficial effects: the lower side bearing press-fitting device provided by the embodiment of the present disclosure is provided with a workbench, a limiting part, an adjusting part and a pressing part. The workbench is provided with a first positioning block and a second positioning block on the working surface in a relative manner. The side bearing seat is positioned by the second positioning block. The limiting part is arranged between the first positioning block and the second positioning block, and the limiting part forms a limiting space. The side bearing body is placed in the limiting space to limit the side bearing body. The adjusting part can adjust the size of the limiting space of the limiting part according to the size of the direction of elastic deformation of the side bearing body to be press-fitted, so as to ensure that the limiting part can be applied to side bearing bodies of different models and sizes, and improve the applicability. The pressing part pushes the side bearing body to move in the direction of the second positioning block, so that the side bearing body is assembled on the side bearing seat. The first positioning block is used to position the pressing part, so that the direction of the pushing force generated by the pressing part is consistent with the direction in which the second positioning part is opposite to the first positioning part, and no other directional component force is generated. When the side bearing body is pushed, the side bearing body is prevented from being inclined, and the stability is improved. The lower side bearing press-fitting device provided by the embodiment of the present disclosure can be applied to the press-fitting work of lower side bearings of different models and sizes. Special tooling does not need to be made according to lower side bearings of different models and sizes. The time cost, labor cost and material cost of making tooling are saved, and the space required for storing the press-fitting device is also saved. BRIEF DESCRIPTION OF DRAWINGS

[0036] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the exemplary embodiments. The accompanying drawings are included to provide a description of the exemplary embodiments and are not meant to limit the present disclosure. Moreover, the same reference numerals in different figures represent the same or similar components. In the drawings:

[0037] Figure 1 FIG. 1 is a schematic structural diagram of a lower side bearing press-fitting device according to an embodiment of the present disclosure.

[0038] In the drawings, Figure 1 The correspondence between the reference numerals in the drawings and the component names is as follows:

[0039] 100 lower side bearing pressing device, 110 workbench, 111 first positioning block, 112 second positioning block, 120 limiting part, 121 seat body, 122 limiting block, 130 adjusting part, 131 sliding groove, 132 sliding block, 133 driving member, 1331 screw rod, 1332 hand wheel, 1333 self-locking structure, 140 pressing part, 141 rod body, 142 pushing head, 200 lower side bearing, 210 side bearing body, 220 side bearing seat, 230 elastic part. DETAILED DESCRIPTION

[0040] Exemplary embodiments of the present disclosure will be described in detail with reference to the drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood, and the scope of the present disclosure can be accurately conveyed to those skilled in the art.

[0041] As Figure 1 shown, according to the embodiment of the present disclosure, a lower side bearing 200 pressing device 100 is provided, comprising: a workbench 110, a first positioning block 111 and a second positioning block 112 are oppositely arranged on the working surface of the workbench 110, wherein the second positioning block 112 is used for positioning the side bearing seat; a limiting part 120 is arranged between the first positioning block 111 and the second positioning block 112, the limiting part 120 forms a limiting space, and the limiting part 120 is used for limiting the side bearing body 220 through the limiting space; an adjusting part 130 is used for adjusting the size of the limiting space of the limiting part 120 according to the size of the side bearing body 220; a pressing part 140 is positioned by the first positioning block 111, and the pressing part 140 is used to push the side bearing body 220 towards the second positioning block 112, so that the side bearing body 220 is assembled in the side bearing seat.

[0042] It can be understood that the present disclosure at least includes the following beneficial effects: the lower side bearing 200 pressing device 100 provided by the embodiment of the present disclosure is provided with a workbench 110, a limiting part 120, an adjusting part 130 and a pressing part 140. The work surface of the workbench 110 is oppositely provided with a first positioning block 111 and a second positioning block 112. The second positioning block 112 is used for positioning the side bearing seat. The limiting part 120 is arranged between the first positioning block 111 and the second positioning block 112, and the limiting part 120 forms a limiting space. The side bearing body 220 is placed in the limiting space, so as to limit the side bearing body 220. The adjusting part 130 can adjust the size of the limiting space of the limiting part 120 according to the size of the elastic deformation direction of the side bearing body 220 to be pressed, so as to ensure that the limiting part 120 can be suitable for side bearing bodies 220 of different models and sizes, and improve the applicability. The pressing part 140 pushes the side bearing body 220 to move towards the second positioning block 112, so that the side bearing body 220 is assembled to the side bearing seat. The first positioning block 111 is used for positioning the pressing part 140, so that the direction of the pushing force generated by the pressing part 140 is consistent with the direction in which the second positioning part is opposite to the first positioning part, and no other directional component force is generated. When the side bearing body 220 is pushed, the side bearing body 220 is inclined, and the stability is improved. The lower side bearing 200 pressing device 100 provided by the embodiment of the present disclosure can be suitable for pressing operation of lower side bearings 200 of different models and sizes. Special tooling does not need to be made according to lower side bearings 200 of different models and sizes. The time cost, labor cost and material cost of making tooling are saved, and the space required for storing the pressing device is saved.

[0043] In some examples, as shown in Figure 1 The limiting part 120 includes a seat body 121 arranged between the first positioning block 111 and the second positioning block 112, and a limiting block 122 arranged on the seat body 121 and used for abutting against the side bearing body 220. The limiting block 122 is provided with two limiting blocks 122, and the limiting space is formed between the two limiting blocks 122. The first opening size of the limiting space towards the first positioning block 111 is greater than the second opening size of the limiting space towards the second positioning block 112. In the case that the pressing part 140 pushes the side bearing body 220 to move to the second opening, the elastic part 230 on the side of the side bearing body 220 is compressed to conform to the assembly size of the side bearing seat.

[0044] It can be understood that the limiting part 120 can be provided with a seat body 121 and limiting blocks 122. The seat body 121 is arranged between the first positioning block 111 and the second positioning block 112. The limiting blocks 122 are arranged in pairs on the seat body 121, and a limiting space is formed between the two limiting blocks 122. The position of the limiting blocks 122 on the seat body 121 is adjusted by the adjusting part 130 to adjust the size of the limiting space. The first opening is formed at one end of the limiting space towards the first positioning block 111, and the second opening is formed at the other end of the limiting space towards the second positioning block 112. The size of the first opening is larger than the size of the side elastic part 230 of the side bearing body 220 that is not under pressure, and the size of the side elastic part 230 of the side bearing body 220 that is not under pressure is larger than the size of the second opening. In this way, after the adjusting part 130 adjusts the size of the limiting part 120 according to the size of the side bearing body 220, the side bearing body 220 is placed in the limiting space close to the first opening, and the top pressing part 140 pushes the side bearing body 220 to move in the direction of the second opening through the first opening. In the process of moving, the side elastic part 230 of the side bearing body 220 is compressed by the pressure applied by the side wall of the limiting block 122 to adapt to the size of the limiting space. When the side bearing body 220 moves to the second opening, the side elastic part 230 of the elastic member is compressed to the size of the second opening, which meets the assembly condition of the side bearing seat, so that the side bearing body 220 and the side bearing seat can be smoothly assembled into the lower side bearing 200.

[0045] In some examples, as shown in FIG. Figure 1 The adjusting part 130 includes a sliding groove 131 opened in the seat body 121, a sliding block 132 connected to the bottom of the limiting block 122, the sliding block 132 being slidingly connected to the sliding groove 131, and a driving member 133 connected to the sliding block 132 for driving the sliding block 132 to move in the sliding groove 131 towards or away from the side bearing body 220.

[0046] It can be understood that the adjusting part 130 is provided with a sliding groove 131 and a sliding block 132. The sliding groove 131 is formed on the seat body 121, and the extension direction of the sliding groove 131 is perpendicular to the direction of the first positioning block 111 to the second positioning block 112. The sliding block 132 is slidably connected to the sliding groove 131, and the sliding block 132 is provided with two, which are respectively connected to one end of the limiting block 122 towards the seat body 121. The limiting block 122 is driven by the sliding block 132 to relatively slide to reduce the limiting space, or to relatively slide away to expand the limiting space. The two sliding blocks 132 are respectively and parallelly arranged with the first positioning block 111 and the second positioning block 112, and the center lines of the first positioning block 111 and the second positioning block 112 are arranged in the same line. The force transmission direction is accurate and reliable. The sliding block 132 can be accurately driven to slide by the driving member 133. The driving force acts on the center position of the sliding block 132, and the driving force and the extension direction of the sliding groove 131 are the same, which ensures the accurate force transmission and avoids other directional component forces. The driving member 133 can be provided with two, which are respectively connected to the two sliding blocks 132, so that the two sliding blocks 132 relatively slide or relatively slide away.

[0047] In some examples, as shown in Figure 1 The driving member 133 includes a lead screw 1331, and a hand wheel 1332. The lead screw 1331 is connected to the sliding block 132 through a mounting hole formed in the side of the seat body 121. The hand wheel 1332 is connected to the other end of the lead screw 1331 and located outside the seat body 121.

[0048] It can be understood that the driving member 133 is provided with a lead screw 1331 and a hand wheel 1332. The mounting hole is formed in the side of the seat body 121, and the axis direction of the mounting hole is the same as the extension direction of the sliding groove 131. The lead screw 1331 is connected to the middle of the side surface of the sliding block 132 through the mounting hole, and the hand wheel 1332 is connected to the end of the lead screw 1331 extending out of the seat body 121. The lead screw is driven to rotate synchronously by rotating the hand wheel 1332, the rotation of the lead screw is converted into linear movement, the sliding distance of the sliding block 132 is accurately controlled, and the lead screw drives the sliding block 132 to slide towards or slide away by adjusting the rotation direction of the hand wheel 1332.

[0049] In some examples, as shown in Figure 1 The driving member 133 further includes a self-locking structure 1333 arranged on the lead screw 1331.

[0050] It can be understood that the driving member 133 is further provided with a self-locking structure 1333. The self-locking structure 1333 is arranged on the lead screw 1331, so that when the lead screw 1331 is no longer rotated, the sliding block 132 can still be maintained at the current position, the top pressure on the side bearing body 220 is maintained, and the reliability is improved.

[0051] In some examples, the driving member 133 is a worm gear mechanism.

[0052] It can be understood that the driving member 133 can be a worm gear structure, the worm is connected to the sliding block 132, and the two sliding blocks 132 are simultaneously slid relative to each other or away from each other through the worm gear transmission.

[0053] In some examples, as shown in Figure 1 The top pressing part 140 includes a rod body 141, a through hole is formed in the first positioning block 111, the rod body 141 is arranged in the through hole and moves towards or away from the second positioning block 112, and the first positioning block 111 is positioned through the through hole, so that the rod body 141 is prevented from tilting and stability is improved; and a pushing head 142 connected to one end of the rod body 141 towards the second positioning block 112, the center of the pushing head 142 coincides with the end surface center of the rod body 141, so that force transmission to the side bearing body 220 is accurate and stable, and the area of the one end of the pushing head 142 towards the second positioning block 112 is greater than the end surface area of the rod body 141, so that the stress area of the side bearing body 220 is increased and the pressure applied to the side bearing body 220 is uniform.

[0054] It can be understood that the top pressing part 140 is provided with the rod body 141 and the pushing head 142. The rod body 141 is arranged in the direction from the first positioning block 111 to the second positioning block 112, the first positioning block 111 is provided with a through hole, the rod body 141 is arranged in the through hole and moves towards or away from the second positioning block 112, the rod body 141 is positioned through the through hole, so that the rod body 141 is prevented from tilting and stability is improved. The pushing head 142 is connected to one end of the rod body 141 towards the second positioning block 112, the center of the pushing head 142 coincides with the end surface center of the rod body 141, so that force transmission to the side bearing body 220 is accurate and stable. The area of the one end of the pushing head 142 towards the second positioning block 112 is greater than the end surface area of the rod body 141, so that the stress area of the side bearing body 220 is increased and the pressure applied to the side bearing body 220 is uniform.

[0055] In some examples, the top pressing part 140 further includes a hydraulic structure connected to the rod body 141 and used to drive the rod body 141 to move towards or away from the side bearing body 220.

[0056] It can be understood that the top pressing part 140 can be further provided with a hydraulic structure. Specifically, the hydraulic structure is connected to the rod body 141 and drives the rod body 141 to move towards or away from the side bearing body 220 through hydraulic pressure.

[0057] In some examples, the first positioning block 111 and the second positioning block 112 are welded to the workbench 110; and / or the hand wheel 1332 is welded to the lead screw; and / or the seat body 121 is welded to the workbench 110.

[0058] It can be understood that the first positioning block 111 and the second positioning block 112 can be fixed to the workbench 110 by welding; the hand wheel 1332 can be fixed to the lead screw by welding; and the seat body 121 can be fixed to the workbench 110 by welding. The fixation is stable and reliable.

[0059] In some examples, further comprising: a pressure sensor arranged on the limiting block 122, configured to detect the pressure value applied by the limiting block 122 to the side bearing body 220.

[0060] It can be understood that the lower side bearing 200 pressing device 100 is also provided with a pressure sensor. Specifically, the pressure sensor is arranged on the limiting block 122, and the pressure value applied by the limiting block 122 to the side bearing body 220 can be detected through the pressure sensor. In the case that the detected pressure value is less than the preset pressure value range, it indicates that the limiting block 122 and the side bearing body 220 are not fitted in place; in the case that the detected pressure value is greater than the preset pressure value range, it indicates that the pressure of the limiting block 122 to the side bearing body 220 is too large, which makes it difficult for the top pressing part 140 to push the side bearing body 220, and even the pressure is too large to damage the side bearing body 220. The accuracy of the pressure of the side bearing body 220 is improved.

[0061] In the present disclosure, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connection", "connection", "limiting" and the like should be broadly understood, for example, "connection" can be limiting connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0062] In the description of the present disclosure, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, cannot be understood as a limitation on the present disclosure.

[0063] In the description of the present disclosure, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0064] The above merely preferred embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A lower side bearing pressure device, characterized in that, include: A workbench, wherein a first positioning block and a second positioning block are arranged opposite to each other on the work surface of the workbench, wherein the second positioning block is used to position the side bearing seat; A limiting part is disposed between the first positioning block and the second positioning block, the limiting part forming a limiting space, and the limiting part being used to limit the side bearing through the limiting space; An adjustment section is used to adjust the limiting space size of the limiting section according to the size of the side support; The top pressing part is positioned by the first positioning block. The top pressing part is used to push the side bearing body towards the second positioning block so that the side bearing body is assembled into the side bearing seat.

2. The lower side bearing pressure device according to claim 1, characterized in that, The limiting part includes: A base is disposed between the first positioning block and the second positioning block; A limiting block is provided on the base body for abutting against the side support body; The limiting block is provided in two parts, and the limiting space is formed between the two limiting blocks. The first opening size of the limiting space facing the first positioning block is larger than the second opening size of the limiting space facing the second positioning block. When the top pressing part pushes the side bearing to move to the second opening, the elastic part on the side of the side bearing is compressed to meet the assembly size with the side bearing seat.

3. The lower side bearing pressure device according to claim 2, characterized in that, The adjustment unit includes: A groove is formed in the base body; A slider is connected to the bottom of the limiting block, and the slider is slidably connected to the groove; A driving element, connected to the slider, is used to drive the slider to move in the groove toward or away from the side support.

4. The lower side bearing pressure device according to claim 3, characterized in that, The driving component includes: A lead screw is provided along the sliding direction of the slider. A mounting hole is provided on the side of the base body, and one end of the lead screw passes through the mounting hole and is connected to the slider. The handwheel is connected to the other end of the lead screw and is located on the outside of the base.

5. The lower side bearing pressure device according to claim 4, characterized in that, The driving component also includes: A self-locking structure is provided on the lead screw.

6. The lower side bearing pressure device according to claim 3, characterized in that, The driving component is a worm gear mechanism.

7. The lower side bearing pressure device according to any one of claims 1 to 6, characterized in that, The top pressure section includes: The rod body is positioned along the direction from the first positioning block toward the second positioning block, and the first positioning block has a through hole through which the rod body passes. A pusher head is connected to one end of the rod facing the second positioning block and is used to press down on the side bearing.

8. The lower side bearing pressure device according to claim 7, characterized in that, The top pressure section also includes: A hydraulic structure, connected to the rod, is used to drive the rod to move toward or away from the side bearing.

9. The lower side bearing pressure device according to claim 4, characterized in that, The first positioning block and the second positioning block are welded to the worktable; and / or The handwheel is welded to the lead screw; and / or The base is welded to the workbench.

10. The lower side bearing pressure device according to claim 2, characterized in that, Also includes: A pressure sensor is disposed on the limiting block to detect the pressure value applied by the limiting block to the side bearing.

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