Automatic grinding equipment for abnormal wear of rigid contact network

Abstract

An automatic grinding device for abnormal abrasion of a rigid contact network is characterized by comprising two sets of fixed suspension walking units, two sets of axial movement suspension walking units, two sets of manual lead screw voltage regulating units and two sets of direct-current brushless motor driving polishing wheel grinding and polishing units. The two sets of fixed suspension walking units are arranged on one side of a busbar, the two sets of axial movement suspension walking units are arranged on the other side of the busbar, the direct-current brushless motor drives the polishing wheel to rotate, the lead screw stepping motor adjusts the pressure of the polishing wheel and the contact line of the contact network, and the polishing effect on the contact line of the contact network is achieved. The grinding efficiency is high, and the problems that turning grinding cannot be achieved through rigid grinding, and the contact pressure of a rigid grinding wheel is difficult to control are solved.

Description

Technical Field

[0001] The invention relates to the technical field of rail transit contact wire grinding, and in particular to an automatic grinding device for abnormal wear of a rigid contact network. Background Art

[0002] In the rail transit power supply system, the rigid contact network is one of the main traction power supply methods. The rigid contact network is an overhead rigid suspension busbar system, which is a power supply method for urban rail transit in which the contact wire is clamped in the busbar and the locomotive directly contacts the contact wire through the pantograph to draw current. This system is mainly used for power supply to tunnels, stations, and underpasses. Compared with the traditional overhead flexible contact network, it has a stronger current carrying capacity, no risk of disconnection, high safety and reliability, fewer parts, easy installation, simple maintenance, low maintenance cost, reduced tunnel clearance, and saved civil engineering investment. In the process of improving the quality of the rigid contact network, the problem of contact wire surface wear is solved. Uneven wear or rough surface is one of the most important issues in improving the bow-net relationship. The basic measure to solve this kind of problem in the industry is to use grinding tools to grind the contact line, that is, to grind the uneven wear or rough surface of the contact line, and improve the smoothness of the contact line surface to achieve the purpose of improving the bow-net relationship. At present, the main grinding tools for rigid contact lines in rail transit are traditional tools such as sandpaper and angle grinders. Traditional tools have low operating efficiency and cannot guarantee operating accuracy, and cannot achieve large-area, efficient and high-precision contact line grinding. In order to solve the above problems, an automatic grinding device for abnormal wear of rigid contact network is proposed. Summary of the invention

[0003] In view of the above existing technical problems, the present invention provides an automatic grinding device for abnormal wear of a rigid contact network, which is characterized by comprising a fixed suspension walking unit, an axially movable suspension walking unit, a manual screw lifting and pressure regulating unit, a grinding wheel polishing and grinding unit, and a tensioning unit. An axially movable suspension walking unit is arranged next to the fixed suspension walking unit, a tensioning unit is arranged below the axially movable suspension walking unit, a grinding wheel polishing and grinding unit is arranged below the fixed suspension walking unit, and a manual screw lifting and pressure regulating unit is arranged at the lower end of the fixed suspension walking unit;

[0004] Furthermore, the fixed suspension walking unit includes a roller D40, a roller shaft, a cover plate, a bearing, an upper sliding block, a bearing pressure cover, a cam, a core shaft, a lower sliding block, and a cushion block. The roller shaft is provided with a roller D40, the roller shaft is provided with a bearing, the roller shaft is provided with an upper sliding block, the roller shaft is provided with a bearing pressure cover, the roller shaft is provided with a shoulder, one end of which is in contact with the end surface of the roller D40, and the other end is in contact with the end surface of the bearing, the bearing pressure cover is connected to the upper sliding block by a screw, the lower part of the upper sliding block is provided with an axial hole, and is connected to one end of the core shaft through the axial hole, the middle part of the core shaft is provided with a cam, the other end of the core shaft is connected to the upper end part of the lower sliding block, the end surfaces of both sides of the upper sliding block and the lower sliding block are respectively provided with threaded holes and are connected to the cover plate, and a cushion block is provided at the lower end of the lower sliding block;

[0005] Furthermore, the axially movable suspension travel unit has the same structure as the fixed suspension travel unit, and the lower end of the axially movable suspension travel unit is connected to a slider, and the slider is located in the slide rail;

[0006] Furthermore, the fixed suspension walking unit has two groups, namely fixed suspension walking unit 1 and fixed suspension walking unit 2, and the fixed suspension walking unit 1 and the fixed suspension walking unit 2 are connected by handle 1;

[0007] Furthermore, the axially movable suspension walking unit has two groups, namely, axially movable suspension walking unit 1 and axially movable suspension walking unit 2, and the axially movable suspension walking unit 1 and the axially movable suspension walking unit 2 are connected by handle 2;

[0008] Further, the tensioning unit comprises a dovetail rail, a dovetail slider, a tensioning block, a star handle, and a mounting block. The dovetail rail is provided with a dovetail slider, the dovetail slider is provided with a tensioning block, the tensioning blocks are respectively provided with star handles, the mounting block is provided with a blind hole, and the screw of the star handle is placed in the blind hole of the mounting block;

[0009] Furthermore, the manual screw lifting and voltage regulating unit includes a bracket 20°, a linear slider is provided on each side of the bottom plate of the bracket 20°, a support block is provided in the middle, the two linear sliders are respectively connected to the linear slide rails, a threaded hole is provided on one end face of the support block, and is connected to the screw nut, the screw nut is connected to the screw M8, the two shaft ends of the screw M8 are respectively provided with a seat bearing and a rotating fixed seat, the seat bearing is placed on the bottom cushion block, one end face of the bottom cushion block is provided with an end fixing plate, and the other end face is provided with two baffles 2, and the shaft end of the screw M8 is provided with a rotating handwheel;

[0010] Furthermore, the grinding wheel polishing unit includes a square bearing seat, which is located in front of the upper 20° part of the bracket, and a rotating shaft is provided in the bearing hole of the square bearing seat, one end of the rotating shaft is provided with a bevel gear 2, and a ratchet metal chuck is provided in the middle, and a scouring pad grinding head is provided on the clamping hole of the ratchet metal chuck, and a motor bracket is provided at the rear of the upper 20° part of the bracket, and a DC brushless motor is provided on the motor bracket, and a bevel gear 1 is provided at the shaft end of the DC brushless motor, and the bevel gear 1 at the shaft end of the DC brushless motor is meshed with the bevel gear 2 at the shaft end of the rotating shaft.

[0011] Beneficial effects of the present invention:

[0012] The present invention drives the polishing wheel to rotate through a DC brushless motor, and the lead screw stepping motor adjusts the pressure between the grinding wheel and the contact line of the contact network, thereby achieving a grinding and polishing effect on the contact line of the contact network, with high grinding efficiency, and solving the problems that rigid grinding cannot achieve grinding at corners and the contact pressure of the rigid grinding wheel is difficult to control. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of an automatic grinding device for abnormal wear of a rigid contact network according to the present invention;

[0014] Figure 2 It is a front view of an automatic grinding device for abnormal wear of a rigid contact network according to the present invention;

[0015] Figure 3 It is a side view of an automatic grinding device for abnormal wear of a rigid contact network according to the present invention;

[0016] Figure 4 It is a top view of an automatic grinding device for abnormal wear of a rigid contact network according to the present invention;

[0017] Figure 5 It is a rear view of an automatic grinding device for abnormal wear of a rigid contact network according to the present invention;

[0018] Figure 6 It is a side view of a mobile suspension travel unit of an automatic grinding device for abnormal wear of a rigid contact network according to the present invention;

[0019] Figure 7 It is a side view of a fixed suspension travel unit of an automatic grinding device for abnormally worn rigid contact network according to the present invention;

[0020] Figure 8 The invention is an automatic grinding device for abnormal wear of a rigid contact network. Figure 7 Cross-sectional view in the BB direction;

[0021] Fig. 9The invention is an automatic grinding device for abnormal wear of a rigid contact network. Figure 7 Section view in AA direction;

[0022] Fig.10 It is a front view of a grinding wheel polishing unit, a lead screw pressure regulating unit of an automatic grinding device for abnormal wear of a rigid contact network according to the present invention;

[0023] Fig.11 The invention is an automatic grinding device for abnormal wear of a rigid contact network. Fig.10 Section view in AA direction;

[0024] Fig.12 The invention is an automatic grinding device for abnormal wear of a rigid contact network. Fig.10 Right view of;

[0025] As shown in the figure: (1) fixed suspension travel unit, (2) axial movable suspension travel unit, (3) manual screw lifting and pressure regulating unit, (4) grinding wheel polishing and grinding unit, (5) tensioning unit, (11) fixed suspension travel unit 1, (12) fixed suspension travel unit 2, (21) movable suspension travel unit 1, (22) movable suspension travel unit 2, (101) roller D40, (102) roller shaft, (103) cover plate, (104) bearing, (105) upper sliding block, (106) bearing pressure cover, (107) cam, (108) core shaft, (109) lower sliding block, (110) pad, (111) handle 1, (113) slider, (114) slide rail, (115) handle 2, (30 1) Screw M8, (302) rotating fixed seat, (303) screw nut, (304) bearing with seat, (305) support block, (306) linear slider, (307) linear slide rail, (308) baffle, (309) bracket 20°, (310) bottom pad, (311) end fixing plate, (314) baffle II, (401) DC brushless motor, (402) motor bracket, (403) bevel gear I, (404) bevel gear II, (405) rotating shaft, (406) square bearing seat, (407) ratchet metal chuck, (408) scouring pad grinding head, (501) dovetail slide rail, (502) dovetail slider, (503) tension block, (504) star handle, (505) mounting block. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] Example 1

[0030] The present invention provides an automatic grinding device for abnormal wear of a rigid contact network, which is characterized by comprising a fixed suspension travel unit (1), an axially movable suspension travel unit (2), a manual screw lifting and pressure regulating unit (3), a grinding wheel polishing and grinding unit (4), and a tensioning unit (5); an axially movable suspension travel unit (2) is arranged beside the fixed suspension travel unit (1); a tensioning unit (5) is arranged below the axially movable suspension travel unit (2); a grinding wheel polishing and grinding unit (4) is arranged below the fixed suspension travel unit (1); and a manual screw lifting and pressure regulating unit (3) is arranged at the lower end of the fixed suspension travel unit (1);

[0031] The fixed suspension walking unit (1) comprises a roller shaft (102), a roller D40 (101) is arranged on the roller shaft (102), a bearing (104) is arranged on the roller shaft (102), a sliding block (105) is arranged on the roller shaft (102), a bearing cover (106) is arranged on the roller shaft (102), the roller shaft (102) is provided with a shaft shoulder, one end of which is in contact with the end face of the roller D40 (101) to achieve axial positioning, and the other end of which is in contact with the end face of the bearing (104) to achieve axial positioning, and the bearing cover (106) is connected to the upper sliding block (105) by screws to achieve axial positioning of the bearing (104). The upper sliding block (105) is provided with an axial hole at the lower part, and cooperates with one end of the core shaft (108) through the axial hole. A cam (107) is provided in the middle of the core shaft (108). The cam (107) realizes the axial limit function of the roller D40 (101) during the walking process. The other end of the core shaft (108) is connected to the upper end of the lower sliding block (109). The end surfaces of both sides of the upper sliding block (105) and the lower sliding block (109) are respectively provided with threaded holes and connected to the cover plate (103). The cover plate (103) plays the role of sealing the plate and increasing the structural strength. The lower end of the sliding block - symmetrical (109) is connected to the cushion block (110);

[0032] Furthermore, the fixed suspension walking unit (1) has two groups, namely fixed suspension walking unit one (11) and fixed suspension walking unit two (12), and the fixed suspension walking unit one (11) and the fixed suspension walking unit two (12) are connected via a handle one (111);

[0033] Furthermore, the axially movable suspension walking unit (2) has the same structure as the fixed suspension walking unit (1). The lower end of the axially movable suspension walking unit (2) is connected to the slider (113). The slider (113) is located in the slide rail (114). The slider (113) drives the suspension walking unit to slide on the slide rail (114) to realize the axial movement function, thereby realizing the grinding equipment installation and disassembly function. When the grinding equipment is installed on the bus, the slider (113) of the movable walking unit moves to the axial outermost side, that is, the distance relative to the two rollers D40 (101) is the farthest. When the roller D40 (101) of the fixed suspension walking unit is tangent to the upper end surface of the bus, the slider (113) of the movable walking unit moves to the axial innermost side, that is, the distance relative to the two rollers D40 (101) is the shortest. At this time, the tensioning unit (5) starts to start, that is, the screw of the star handle (504) extends into the blind hole provided in the mounting block (505) to realize the axial limiting function.

[0034] Furthermore, the axially movable suspension walking unit (2) has two groups, namely, the axially movable suspension walking unit 1 (21) and the axially movable suspension walking unit 2 (22), and the axially movable suspension walking unit 1 (21) and the axially movable suspension walking unit 2 (22) are connected via a handle 2 (115);

[0035] Furthermore, the tensioning unit (5) comprises a dovetail slide rail (501), a dovetail slider (502), a tensioning block (503), a star handle (504), and a mounting block (505); the dovetail slider (502) slides freely on the dovetail slide rail (501); the dovetail slider (502) is provided with a tensioning block (503); the tensioning block (503) is provided with a star handle (504); the working process of the tensioning unit (5) is: by tightening the star handle (504), the axial limit of the axially movable suspension travel unit (21) and the axially movable suspension travel unit (22) is realized. At this time, the grinder is in the working position, that is, the grinder is located on the busbar, and the grinding operation can be performed. When the grinding work is completed, the star handle (504) is loosened, that is, the screw of the star handle is out of the blind hole of the mounting block (505). At this time, the dovetail slider (502) can slide freely, and it is relatively slid to the middle position of the dovetail slide rail (501). At this time, the slider (113) is in a free state, and it is slid to the outermost axial side, that is, the distance between the two relative rollers D40 (101) is the farthest. At this time, the grinder can be separated from the busbar, realizing the disassembly function of the grinder;

[0036] The manual screw lifting and pressure regulating unit (3) comprises a bracket 20° (309), a linear slider (306) is arranged on each side of the bottom plate of the bracket 20° (309), a support block (305) is arranged in the middle, the two linear sliders (306) are respectively connected to the linear guide rail (307) and the linear guide rail (313), a threaded hole is arranged on one end surface of the support block (305), and the threaded hole is connected to the screw nut (303), and the screw nut (303) is connected to the screw M8 (301), so as to convert the rotational motion of the screw M8 (301) into the linear motion of the screw nut (303), and the screw M8 (301) is connected to the screw nut (303). ) are respectively provided with a seat bearing (304) and a rotating fixed seat (302) at two shaft ends, the rotating fixed seat (302) has both the function of a bearing and the function of preventing the screw rod M8 from rotating, the seat bearing is placed on a plane protruding from one end face of the bottom cushion block (310), one end face of the bottom cushion block (310) is provided with an end fixing plate (311), and the other end face is provided with two baffle plates (314), the end fixing plate (311) and the baffle plate (314) have a limiting function to prevent the linear slider (306) from detaching from the slide rail (307) during the sliding process, and a rotating hand wheel is provided at the shaft end of the screw rod M8 (301);

[0037] The grinding wheel polishing unit (4) comprises a square bearing seat (406), the square bearing seat (406) is located in front of the upper part of the bracket 20° (309), a rotating shaft (405) is arranged in the bearing hole of the square bearing seat (406), a bevel gear 2 (404) is arranged at one end of the rotating shaft (405), a ratchet metal chuck (407) is arranged in the middle, a scouring pad grinding head (408) is arranged on the clamping hole of the ratchet metal chuck (407), and a rotating shaft (405) is arranged in the upper part of the bracket 20° (309). A motor bracket (402) is provided, the motor bracket (402) supports a DC brushless motor (401), a bevel gear 1 (403) is provided at the shaft end of the DC brushless motor (401), the bevel gear 1 (403) at the shaft end of the DC brushless motor (401) is meshed with a bevel gear 2 (404) at the shaft end of the rotating shaft (405) to achieve power transmission, and the polishing wheel grinding unit (4) can achieve axial movement, thereby adjusting the contact pressure between the scouring pad grinding head (408) and the contact line.

[0038] Example 2

[0039] Hang the grinder on the bus, move the mobile suspension walking unit to the outermost axial side, that is, the relative position distance between the two pairs of rolling wheels is the farthest, make the roller of the fixed suspension walking unit tangent to the upper end face of the bus, move the suspension walking unit, make the roller of the mobile walking unit tangent to the other end face of the bus, at this time, the relative position of the two symmetrically arranged rollers is closest, move the dovetail slider of the tensioning unit to the two ends of the dovetail slide rail, rotate the star handle, screw the star handle bolt into the blind hole provided in the mounting block, complete the installation of the grinder, and the grinder is in the working position at this time; adjust the contact pressure between the scouring pad grinding wheel and the contact line of the bus, loosen the fixed handle of the anti-rotation fixing part, rotate the handwheel to make the contact pressure between the grinding wheel and the contact line of the bus appropriate, start the grinding button, start grinding, and complete the grinding process; after the grinding is completed, remove the grinder from the bus according to the reverse procedure of the installation process.

[0040] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. The various components mentioned in the present invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic grinding device for abnormal wear of rigid contact network, characterized in that: It includes a fixed suspension walking unit, an axially movable suspension walking unit, a manual screw lifting and pressure regulating unit, a grinding wheel polishing and grinding unit, and a tensioning unit. An axially movable suspension walking unit is arranged next to the fixed suspension walking unit, a tensioning unit is arranged below the axially movable suspension walking unit, a grinding wheel polishing and grinding unit is arranged below the fixed suspension walking unit, and a manual screw lifting and pressure regulating unit is arranged at the lower end of the fixed suspension walking unit.

2. The automatic grinding device for abnormal wear of rigid contact network according to claim 1 is characterized in that: The fixed suspension walking unit includes a roller D40, a roller shaft, a cover plate, a bearing, an upper sliding block, a bearing pressure cover, a cam, a core shaft, a lower sliding block, and a cushion block. The roller shaft is provided with a roller D40, the roller shaft is provided with a bearing, the roller shaft is provided with an upper sliding block, the roller shaft is provided with a bearing pressure cover, the roller shaft is provided with a shoulder, one end of which is in contact with the end face of the roller D40, and the other end is in contact with the end face of the bearing. The bearing pressure cover is connected to the upper sliding block by a screw, an axial hole is provided at the lower part of the upper sliding block, and is connected to one end of the core shaft through the axial hole, a cam is provided in the middle part of the core shaft, and the other end of the core shaft is connected to the upper end part of the lower sliding block, and the end faces on both sides of the upper sliding block and the lower sliding block are respectively provided with threaded holes and connected to the cover plate, and a cushion block is provided at the lower end of the lower sliding block.

3. The automatic grinding device for abnormal wear of rigid contact network according to claim 1 is characterized in that: The axially movable suspension traveling unit has the same structure as the fixed suspension traveling unit. The lower end of the axially movable suspension traveling unit is connected to a sliding block, and the sliding block is located in a sliding rail.

4. The automatic grinding device for abnormal wear of rigid contact network according to claim 1 is characterized in that: The fixed suspension walking unit has two groups, namely fixed suspension walking unit one and fixed suspension walking unit two, and the fixed suspension walking unit one and fixed suspension walking unit two are connected through handle one.

5. The automatic grinding device for abnormal wear of rigid contact network according to claim 1 is characterized in that: The axially movable suspension walking unit has two groups, namely, axially movable suspension walking unit one and axially movable suspension walking unit two. The axially movable suspension walking unit one and axially movable suspension walking unit two are connected by handle two.

6. The automatic grinding device for abnormal wear of rigid contact network according to claim 1 is characterized in that: The tensioning unit comprises a dovetail slide rail, a dovetail slider, a tensioning block, a star handle and a mounting block. The dovetail slide rail is provided with a dovetail slider, the dovetail slider is provided with a tensioning block, the tensioning blocks are respectively provided with star handles, the mounting block is provided with a blind hole, and the screw of the star handle is placed in the blind hole of the mounting block.

7. The automatic grinding device for abnormal wear of rigid contact network according to claim 1 is characterized in that: The manual screw lifting and pressure regulating unit includes a bracket 20°, a linear slider is provided on each side of the bottom plate of the bracket 20°, a support block is provided in the middle, the two linear sliders are respectively connected to the linear slide rails, a threaded hole is provided on one end face of the support block, and is connected to the screw nut, the screw nut is connected to the screw M8, and the two axial ends of the screw M8 are respectively provided with a seat bearing and a rotating fixed seat, the seat bearing is placed on the bottom cushion block, one end face of the bottom cushion block is provided with an end fixing plate, and the other end face is provided with two baffles two, and the axial end of the screw M8 is provided with a rotating handwheel.

8. The automatic grinding device for abnormal wear of rigid contact network according to claim 1 is characterized in that: The grinding wheel polishing unit includes a square bearing seat, which is located in front of the upper 20° part of the bracket. A rotating shaft is provided in the bearing hole of the square bearing seat. A bevel gear 2 is provided at one end of the rotating shaft, and a ratchet metal chuck is provided in the middle. A scouring pad grinding head is provided on the clamping hole of the ratchet metal chuck. A motor bracket is provided at the rear of the upper 20° part of the bracket. A DC brushless motor is provided on the motor bracket. A bevel gear 1 is provided at the shaft end of the DC brushless motor. The bevel gear 1 at the shaft end of the DC brushless motor is meshed with the bevel gear 2 at the shaft end of the rotating shaft.

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