Elastic automatic grinding and polishing device for rigid contact net

Abstract

The utility model relates to an elastic automatic grinding and polishing device for a rigid contact net, which comprises a suspension mechanism, an elastic automatic grinding mechanism and a busbar, and one end of the busbar is provided with a contact line; the suspension mechanism is composed of two supports, and protective covers are installed on the sides, opposite to each other, of the two supports. The elastic automatic grinding mechanism comprises a spring adjusting structure and an electric grinding head structure; the spring adjusting structure comprises a mounting seat, a guide frame and a lower support, the mounting seat is mounted on the top of the protective cover, the side edge of the mounting seat is in butt joint with the support, the lower support is mounted on the inner edge of the bottom of the protective cover, the side edge of the lower support is in butt joint with the support, and the guide frame is in butt joint between the mounting seat and the lower support. And through the spring adjusting mechanism, the electric grinding head is always pressed on the surface of the contact line of the rigid contact net, and even if the grinding head is abraded, the position of the grinding head does not need to be manually adjusted by stopping the machine, so that the grinding efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of urban rail power supply, and in particular relates to an elastic automatic grinding and polishing device for a rigid contact network. Background Art

[0002] Rigid contact network is widely used in the field of rail transit contact network power supply because it is suitable for installation in low-headroom tunnels. In actual operation, due to long-term friction between the bow and the catenary, the contact line of the rigid contact network suffers from defects such as uneven wear, ablation, and wire drawing. It is necessary to improve the bow-catenary relationship of the rigid contact network by grinding and polishing the contact line.

[0003] A rigid contact network grinding and polishing device proposed in publication number CN114211339A includes a frame, a guide wheel, a positioning wheel and a grinding wheel. The grinding wheel is driven by a motor to realize the function of automatically grinding and polishing the contact line. However, when the device is grinding the contact line, the grinding wheel adjusts the upper and lower positions of the grinding wheel through the fixing bolt adjustment holes at the lower part of the frame. In actual use, due to the friction between the grinding wheel and the contact line, the grinding wheel will be worn into a groove shape, and the grinding effect will gradually deteriorate. It is necessary to loosen the fixing bolts again and adjust the upper and lower positions of the grinding wheel, which will take a long time, and the adjustment of the grinding wheel position needs to rely on the operator's experience. If the pressure between the grinding wheel and the contact line is too large, the contact line will be over-grinded, and the pressure of the guide wheel on the bus wing will be increased, which will cause permanent damage to the bus wing in severe cases. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a rigid contact network elastic automatic grinding and polishing device, comprising a suspension mechanism, an elastic automatic grinding mechanism and a bus bar, wherein a contact wire is arranged at one end of the bus bar;

[0006] The suspension mechanism is composed of two brackets, and a protective cover is installed on the back side of the two brackets;

[0007] The elastic automatic grinding mechanism includes a spring adjustment structure and an electric grinding head structure;

[0008] The spring adjustment structure includes a mounting seat, a guide frame and a lower support, wherein the mounting seat is mounted on the top of the protective cover, and the side of the mounting seat is docked with the support, the lower support is mounted on the bottom inner edge of the protective cover, and the side of the lower support is docked with the support, the guide frame is docked between the mounting seat and the lower support, and the guide frame is located in the protective cover;

[0009] A motor seat is installed on one side opposite to the two brackets, and a mounting frame is arranged on the outer side of the motor seat.

[0010] As a preferred technical solution for a rigid contact network elastic automatic grinding and polishing device, a suspension wheel mechanism is installed at the top position of each bracket, and a cross bar is arranged between the two brackets so that the two brackets form a whole, and two symmetrically distributed guide wheels are arranged on the outside of the cross bar at the two extremes.

[0011] As an optimal technical solution for a rigid contact network elastic automatic grinding and polishing device, the mounting seat has an adjusting bolt threadedly transmitted, the bottom end of the adjusting bolt extends into the top end of the guide frame, and a spring shaft is provided at one end of the adjusting bolt telescopic guide frame.

[0012] As an optimal technical solution for a rigid contact network elastic automatic grinding and polishing device, a limit spring is arranged on the outer side of the bottom end of the spring shaft, and the limit spring is located inside a guide frame. A slider is slidably connected to the guide frame, and a protrusion is provided on the top of the slider to dock with the bottom end of the limit spring. The pressure of the limit spring can be adjusted by tightening and loosening the adjusting bolt.

[0013] As a preferred technical solution for a rigid contact network elastic automatic grinding and polishing device, an arc-shaped slide groove is opened on the side of the bracket, and a limit rod is slidably connected in the arc-shaped slide groove.

[0014] As a preferred technical solution for a rigid contact network elastic automatic grinding and polishing device, an insertion rod is provided at one end of the limit rod close to the slider, and a transverse groove is provided on the side of the slider close to the limit rod. The insertion rod is inserted into the transverse groove, and the internal size of the transverse groove is larger than the size of the insertion rod.

[0015] As an optimal technical solution for a rigid contact network elastic automatic grinding and polishing device, a mounting frame is provided on the outside of the motor seat, a DC motor is installed in the protective cover, an output end of the DC motor is connected to an output shaft, a positioning sleeve is provided on the outside of the output shaft located in the protective cover, the output shaft passes through the bracket, the motor seat and the mounting frame in sequence, and a grinding head is provided on one end of the output shaft that passes through and extends out of the mounting frame.

[0016] Beneficial effects of the present invention:

[0017] 1. The spring adjustment mechanism allows the electric grinding head to always be pressed against the contact line surface of the rigid contact network. Even if the grinding head is worn, there is no need to stop the machine to manually adjust the position of the grinding head, which greatly improves the grinding efficiency;

[0018] 2. By controlling the speed and direction of the DC motor, the forward, backward, acceleration, deceleration and in-situ grinding functions of the rigid contact network elastic automatic grinding and polishing device are realized, making the grinding operation more flexible and more practical.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the back of the present invention.

[0023] Figure 3 It is a schematic diagram of the main view plane of the present invention.

[0024] Figure 4 The half cutaway diagram of the present invention is shown in FIG. Figure 1 .

[0025] Figure 5 For the present invention Figure 4 Enlarged schematic diagram at point A in the middle.

[0026] Figure 6 The half cutaway diagram of the present invention is shown in FIG. Figure 2 .

[0027] Figure 7 The half cutaway diagram of the present invention is shown in FIG. Figure 3 .

[0028] Figure 8 It is a schematic diagram of the motor base and mounting base structure of the present invention.

[0029] Fig. 9 For the present invention Figure 8 Schematic diagram of partial cutaway.

[0030] 1. The support frame includes the support rod, the support rod and the guide rod. The support rod includes the support rod and the guide rod. The support rod includes the support rod and the guide rod. The support rod includes the support rod and the guide rod. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0035] Example

[0036] Reference Figures 1 to 9 , is an embodiment of the present invention, which provides a rigid contact network elastic automatic grinding and polishing device, including a suspension mechanism, an elastic automatic grinding mechanism and a busbar 300, one end of which is provided with a contact wire 301; the suspension mechanism is composed of two brackets 100, and a protective cover 200 is installed on the back side of the two brackets 100; the elastic automatic grinding mechanism includes a spring adjustment structure and an electric grinding head structure;

[0037] The spring adjustment structure includes a mounting seat 400, a guide frame 404 and a lower support 405. The mounting seat 400 is installed on the top of the protective cover 200, and the side of the mounting seat 400 is docked with the bracket 100. The lower support 405 is installed on the bottom inner edge of the protective cover 200, and the side of the lower support 405 is docked with the bracket 100. The guide frame 404 is docked between the mounting seat 400 and the lower support 405, and the guide frame 404 is located in the protective cover 200; the motor seat 600 is installed on the opposite sides of the two brackets 100, and the mounting frame 601 is arranged on the outer side of the motor seat 600.

[0038] Specifically, a suspension wheel mechanism 101 is installed at the top position of each bracket 100, and a cross bar 102 is arranged between the two brackets 100, so that the two brackets 100 form a whole, and two symmetrically distributed guide wheels 103 are arranged on the outside of the cross bar 102 at the two extremes, and an arc-shaped slide groove 500 is opened on the side of the bracket 100, and a limit rod 501 is slidably connected in the arc-shaped slide groove 500.

[0039] Specifically, the mounting seat 400 has an adjusting bolt 401 in threaded transmission, the bottom end of the adjusting bolt 401 extends into the top end of the guide frame 404, and a spring shaft 402 is provided at one end of the adjusting bolt 401 to extend and retract the guide frame 404; a limit spring 403 is provided on the outer side of the bottom end of the spring shaft 402, and the limit spring 403 is located inside the guide frame 404, and a slider 406 is slidably connected in the guide frame 404, and a protrusion is provided on the top end of the slider 406 to dock with the bottom end of the limit spring 403, and the pressure of the limit spring 403 can be adjusted by tightening and loosening the adjusting bolt 401.

[0040] Specifically, an insertion rod 502 is provided at one end of the limiting rod 501 close to the slider 406 , and a transverse groove 407 is provided on one side of the slider 406 close to the limiting rod 501 . The insertion rod 502 is inserted into the transverse groove 407 , and the internal size of the transverse groove 407 is larger than the size of the insertion rod 502 .

[0041] Specifically, a mounting frame 601 is provided on the outside of the motor base 600, a DC motor 604 is installed in the protective cover 200, an output shaft 603 is connected to the output end of the DC motor 604, a positioning sleeve 605 is provided on the outside of the output shaft 603 located in the protective cover 200, the output shaft 603 passes through the bracket 100, the motor base 600 and the mounting frame 601 in sequence, and a grinding head 602 is provided on one end of the output shaft 603 that extends through the mounting frame 601.

[0042] Through this implementation, it can be achieved that: the suspension wheel mechanism 101 is operated, so that the output end of the suspension wheel mechanism 101 is connected with the two sides of the bus 300, and the adjusting bolt 401 is tightened at this time, so that the spring shaft 402 squeezes the slider 406 through the limit spring 403. When the slider 406 is squeezed, the position of one end of the motor base 600 can be adjusted by using the insertion rod 502 and the horizontal slide groove 407. When one end of the motor base 600 is fixed and the other end rotates, the position of the grinding head 602 can be changed. At this time, the grinding head 602 is always in contact with the surface of the contact line 301, and the DC motor 604 controls the grinding head 602 to rotate, thereby realizing the grinding of the contact line 301.

[0043] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A rigid contact network elastic automatic grinding and polishing device, characterized in that: It comprises a suspension mechanism, an elastic automatic grinding mechanism and a busbar (300), wherein one end of the busbar (300) is provided with a contact line (301); The suspension mechanism is composed of two brackets (100), and a protective cover (200) is installed on the back side of the two brackets (100); The elastic automatic grinding mechanism includes a spring adjustment structure and an electric grinding head structure; The spring adjustment structure comprises a mounting seat (400), a guide frame (404) and a lower support (405); the mounting seat (400) is mounted on the top of the protective cover (200), and the side of the mounting seat (400) is docked with the support (100); the lower support (405) is mounted on the inner edge of the bottom of the protective cover (200), and the side of the lower support (405) is docked with the support (100); the guide frame (404) is docked between the mounting seat (400) and the lower support (405), and the guide frame (404) is located in the protective cover (200); A motor seat (600) is installed on one side opposite to the other of the two brackets (100), and a mounting frame (601) is arranged on the outside of the motor seat (600).

2. The rigid contact network elastic automatic grinding and polishing device according to claim 1 is characterized by: A suspension wheel mechanism (101) is installed at the top of each bracket (100), a crossbar (102) is arranged between the two brackets (100), and two symmetrically distributed guide wheels (103) are arranged outside the crossbar (102) at two extreme ends.

3. The rigid contact network elastic automatic grinding and polishing device according to claim 1 is characterized by: An adjusting bolt (401) is threadedly driven in the mounting seat (400), the bottom end of the adjusting bolt (401) extends into the top end of the guide frame (404), and a spring shaft (402) is provided at one end of the adjusting bolt (401) that telescopes the guide frame (404).

4. The rigid contact network elastic automatic grinding and polishing device according to claim 3 is characterized by: A limit spring (403) is arranged outside the bottom end of the spring shaft (402), the limit spring (403) is located inside the guide frame (404), a slider (406) is slidably connected to the guide frame (404), and a protrusion is arranged at the top end of the slider (406) to butt against the bottom end of the limit spring (403).

5. The rigid contact network elastic automatic grinding and polishing device according to claim 1 is characterized by: An arc-shaped sliding groove (500) is provided on the side of the bracket (100), and a limit rod (501) is slidably connected in the arc-shaped sliding groove (500).

6. The rigid contact network elastic automatic grinding and polishing device according to claim 5 is characterized by: An insertion rod (502) is provided at one end of the limiting rod (501) close to the slider (406), and a transverse sliding groove (407) is provided on one side of the slider (406) close to the limiting rod (501). The insertion rod (502) is inserted into the transverse sliding groove (407), and the internal size of the transverse sliding groove (407) is larger than the size of the insertion rod (502).

7. The rigid contact network elastic automatic grinding and polishing device according to claim 1 is characterized by: A mounting frame (601) is arranged outside the motor seat (600), a DC motor (604) is installed in the protective cover (200), an output shaft (603) is connected to the output end of the DC motor (604), a positioning sleeve (605) is arranged outside the output shaft (603) located in the protective cover (200), the output shaft (603) passes through the bracket (100), the motor seat (600) and the mounting frame (601) in sequence, and a grinding head (602) is arranged at one end of the output shaft (603) that passes through and extends out of the mounting frame (601).

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