Axle box clamp

Abstract

The utility model discloses an axle box clamp which comprises a base plate, supports are arranged on the two sides of the base plate, clamping units are arranged on the supports, the two clamping units are used for clamping a bearing plate in a matched mode, positioning cores are arranged at the two ends of the base plate, the positioning cores are provided with positioning units, and the positioning units are arranged on the two ends of the base plate. The positioning unit penetrates through the axle box and is used for positioning the axle box on the positioning core; according to the axle box clamp, the two positioning cores are arranged, two axle box blanks can be positioned at the same time, the machining efficiency is improved, the clamping unit and the positioning unit are adopted, the axle box body and the bearing plate are effectively fixed, the influence of vibration on the machining precision is eliminated, and the qualification rate and the consistency of axle boxes are improved; in addition, a pneumatic supporting rod is adopted, vibration in the machining process can be buffered, and the machining precision of axle box finish machining is further improved.

Description

Technical Field

[0001] The utility model relates to an axle box technology, in particular to an axle box clamp. Background Art

[0002] In railway locomotives and vehicles, the parts that are sleeved on the axle necks to connect the wheelset and the bogie frame or the two-axle vehicle body are referred to as axle boxes. Its function is to transfer the weight and load of the vehicle body to the wheelset, lubricate the axle necks, reduce friction, and reduce running resistance. Axle box devices are divided into two types according to the type of bearings used: sliding bearing axle box devices and rolling bearing axle box devices. Early locomotives and vehicles used sliding bearing axle box devices. Rolling bearing axle box devices began to be tried in the early 20th century and have gradually replaced sliding bearing axle box devices. China Railway's passenger cars, diesel locomotives, and electric locomotives have all adopted rolling bearing axle box devices, and freight cars have partially adopted the source; the existing axle box is generally composed of an axle box body and spring bearing plates on both sides.

[0003] The cast axle box blank needs to be fixed on the machine for fine processing. The existing axle box fixing method generally directly clamps the axle box body through the clamping claws on the machine, which cannot provide effective fixation for the bearing plates on both sides, resulting in vibration and inconsistent thickness of the bearing plates on both sides during fine processing, which greatly affects the qualified rate of the axle box. Moreover, the clamping claw fixation can only fix one axle box blank, and the processing efficiency is low. Utility Model Content

[0004] In order to solve the defects of the above-mentioned prior art, the utility model provides an axle box clamp, which can simultaneously position two axle box blanks, improve processing efficiency, and fix both the axle box body and the bearing plate, eliminate the influence of vibration on processing accuracy, and improve the qualification rate and consistency of the axle box.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: an axle box clamp, including a base plate, both sides of the base plate are arranged on a support, the support is provided with a clamping unit, the two clamping units are used to clamp the carrier plate, both ends of the base plate are provided with a positioning core, the positioning core is provided with a positioning unit, the positioning unit passes through the axle box and is used to position the axle box on the positioning core.

[0006] The clamping unit includes a connecting column, a clamping plate and a clamping bolt. The connecting column is fixed to the side of the support relative to the base plate. The connecting column is provided with a clamping groove and a threaded hole at one end relative to the support. The clamping bolt is threadedly matched with the threaded hole. A through hole is provided at the center of the clamping plate. The connecting column passes through the clamping plate through the through hole. A push rod is provided in the through hole. The push rod passes through the clamping groove. The clamping bolt adjusts the position of the push rod in the clamping groove. Grooves are provided at both ends of the clamping plate facing the base plate, and the grooves are matched with the ends of the supporting plate.

[0007] Preferably, the positioning unit includes a positioning nut, a positioning plate and a positioning column, the positioning column is vertically arranged on the positioning core, a threaded column is provided on the top of the positioning column, the positioning plate is sleeved on the threaded column, the positioning nut is threadedly matched with the threaded column, and the positioning nut is used to adjust the position of the positioning plate.

[0008] Preferably, both the positioning core and the base plate are provided with mounting holes, the mounting holes are threaded with mounting bolts, the mounting bolts fix the positioning core to the base plate, and the top of the mounting bolts abuts against the inner wall of the shaft hole of the axle box.

[0009] Preferably, a support column is provided at the center of the base plate, a limit bolt and a limit block are provided on the top of the support column, the limit bolt is threadedly matched with the limit block, the limit bolt can be rotatably connected to the support column, and both sides of the limit block are against the axle box.

[0010] Preferably, a pneumatic support rod is connected between the support column and the support, one end of the pneumatic support rod is inserted into the support column, and the other end of the pneumatic support rod is inserted into the support, the end surface of the pneumatic support rod inserted into the support is inclined, and an adjusting bolt is threaded on the support, the adjusting bolt is perpendicular to the pneumatic support rod and its end is against the inclined surface.

[0011] Preferably, a bottom plate is provided below the substrate, through holes are provided at the bottom plate and the center of the substrate, a rotating shaft is provided between the bottom plate and the substrate, and two ends of the rotating shaft are inserted into the through holes.

[0012] In summary, the utility model has achieved the following technical effects:

[0013] The axle box clamp of the utility model is provided with two positioning cores, which can position two axle box blanks at the same time, thereby improving the processing efficiency; and adopts a clamping unit and a positioning unit to effectively fix the axle box body and the bearing plate, thereby eliminating the influence of vibration on the processing accuracy and improving the qualified rate and consistency of the axle box; in addition, the pneumatic support rod is adopted to buffer the vibration during the processing and further improve the processing accuracy of the axle box finishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the axle box clamp of the utility model;

[0015] Figure 2 It is a cross-sectional view of the axle box clamp of the utility model;

[0016] Explanation of the reference numerals in the drawings in the specification: 1. Base plate; 2. Support column; 3. Limit block; 4. Limit bolt; 5. Support; 6. Pneumatic support rod; 7. Adjusting bolt; 8. Connecting column; 9. Clamping plate; 10. Clamping bolt; 11. Mounting hole; 12. Positioning nut; 13. Positioning plate; 14. Positioning column; 15. Positioning core; 16. Bottom plate. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] Embodiment 1:

[0024] like Figure 1-2 As shown, an axle box clamp includes a base plate 1, both sides of the base plate 1 are arranged on a support 5, the support 5 is provided with a clamping unit, the two clamping units are used to clamp the carrier plate, both ends of the base plate 1 are provided with a positioning core 15, the positioning core 15 is provided with a positioning unit, the positioning unit passes through the axle box and is used to position the axle box on the positioning core 15; two positioning cores 15 are provided, which can simultaneously position two axle box blanks and improve processing efficiency.

[0025] The clamping unit includes a connecting column 8, a clamping plate 9 and a clamping bolt 10. The connecting column 8 is fixed to the side of the support 5 relative to the base plate 1. A clamping groove and a threaded hole are provided at one end of the connecting column 8 relative to the support 5. The clamping bolt 10 is threadedly matched with the threaded hole. A through hole is provided at the center of the clamping plate 9. The connecting column 8 passes through the clamping plate 9 through the through hole. A push rod is provided in the through hole. The push rod passes through the clamping groove. The clamping bolt 10 adjusts the position of the push rod in the clamping groove. Grooves are provided at both ends of the clamping plate 9 facing the base plate 1, and the grooves are matched with the ends of the bearing plate; a support column 2 is provided at the center of the base plate 1, and a limit bolt 4 and a limit block 3 are provided on the top of the support column 2. The limit bolt 4 is threadedly matched with the limit block 3, and the limit bolt 4 can be rotatably connected to the support The column 2 and the limit block 3 are against the axle box on both sides; a pneumatic support rod 6 is connected between the support column 2 and the support 5, one end of the pneumatic support rod 6 is inserted into the support column 2, and the other end of the pneumatic support rod 6 is inserted into the support 5, and the end face of the pneumatic support rod 6 inserted into the support is inclined, and the support 5 is threaded with an adjusting bolt 7, which is perpendicular to the pneumatic support rod 6 and its end is against the inclined surface; a clamping unit is used to effectively fix both sides of the bearing plate and connect the two axle boxes into one, which is conducive to eliminating the influence of vibration on the processing accuracy and improving the qualified rate and consistency of the axle boxes; in addition, the pneumatic support rod 6 is used to buffer the vibration during the processing and further improve the processing accuracy of the axle box finishing.

[0026] The positioning unit includes a positioning nut 12, a positioning plate 13 and a positioning column 14. The positioning column 14 is vertically arranged on the positioning core 15. A threaded column is arranged on the top of the positioning column 14. The positioning plate 13 is sleeved on the threaded column. The positioning nut 12 is threadedly engaged with the threaded column. The positioning nut is used to adjust the position of the positioning plate 13. The positioning core 15 and the base plate 1 are both provided with mounting holes 11. The mounting holes 11 are threadedly engaged with mounting bolts. The mounting bolts fix the positioning core 15 to the base plate 1, and the top of the mounting bolts abuts against the inner wall of the shaft hole of the axle box. The positioning unit is used to effectively fix the axle box body, thereby improving the qualified rate and consistency of the axle box.

[0027] A bottom plate 16 is provided below the substrate 1, and through holes are provided at the center of the bottom plate 16 and the substrate 1, and a rotating shaft is provided between the bottom plate 16 and the substrate 1, and both ends of the rotating shaft are inserted into the through holes; wherein the bottom plate 16 is fixed to the machine table, and the substrate 1 is detachable and fixed to the machine table by a clamp, and this arrangement can facilitate the removal of the substrate 1, which is beneficial to the subsequent replacement of the axle box and adjustment of the angle of the substrate 1.

[0028] Working principle: First, lock the positioning core 15 to the base plate 1 by installing bolts, then place the two axle box blanks on the positioning core 15 through the preliminary positioning of the installing bolts, then tighten the limit bolts 4, adjust the height of the limit block 3, so that the two axle box bodies are arranged in parallel and symmetrically, and then tighten the two clamping bolts 10, adjust the position of the clamping plate 9, limit the bearing plates on the same side of the two axle boxes, and the two clamping units effectively fix the bearing plates of the two axle boxes, finally tighten the positioning nut 12, adjust the height of the positioning plate 13, fix the axle box body on the positioning core 15, and complete the fixation of the axle box as a whole.

[0029] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. An axle box clamp, characterized in that: It includes a base plate, both sides of which are arranged on a support, a clamping unit is arranged on the support, and the two clamping units cooperate to clamp the carrier plate, and both ends of the base plate are provided with a positioning core, and the positioning core is provided with a positioning unit, and the positioning unit passes through the axle box and is used to position the axle box on the positioning core; The clamping unit includes a connecting column, a clamping plate and a clamping bolt. The connecting column is fixed to the side of the support relative to the base plate. The connecting column is provided with a clamping groove and a threaded hole at one end relative to the support. The clamping bolt is threadedly matched with the threaded hole. A through hole is provided at the center of the clamping plate. The connecting column passes through the clamping plate through the through hole. A push rod is provided in the through hole. The push rod passes through the clamping groove. The clamping bolt adjusts the position of the push rod in the clamping groove. Grooves are provided at both ends of the clamping plate facing the base plate, and the grooves are matched with the ends of the supporting plate.

2. The axle box clamp according to claim 1, characterized in that: The positioning unit includes a positioning nut, a positioning plate and a positioning column. The positioning column is vertically arranged on the positioning core. A threaded column is provided on the top of the positioning column. The positioning plate is sleeved on the threaded column. The positioning nut is threadedly matched with the threaded column. The positioning nut is used to adjust the position of the positioning plate.

3. The axle box clamp according to claim 1, characterized in that: The positioning core and the base plate are both provided with mounting holes, the mounting holes are threadedly matched with mounting bolts, the mounting bolts fix the positioning core to the base plate, and the top of the mounting bolts abuts against the inner wall of the shaft hole of the axle box.

4. The axle box clamp according to claim 1, characterized in that: A support column is provided at the center of the base plate, and a limiting bolt and a limiting block are provided on the top of the support column. The limiting bolt is threadedly matched with the limiting block, and the limiting bolt can be rotatably connected to the support column. Both sides of the limiting block are against the axle box.

5. The axle box clamp according to claim 4, characterized in that: A pneumatic support rod is connected between the support column and the support, one end of the pneumatic support rod is inserted into the support column, and the other end of the pneumatic support rod is inserted into the support, the end surface of the pneumatic support rod inserted into the support is inclined, and an adjusting bolt is threaded on the support, the adjusting bolt is perpendicular to the pneumatic support rod and its end is against the inclined surface.

6. The axle box clamp according to claim 1, characterized in that: A bottom plate is provided below the substrate, through holes are provided at the center of the bottom plate and the substrate, a rotating shaft is provided between the bottom plate and the substrate, and two ends of the rotating shaft are inserted into the through holes.

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