A rust removal and polishing device for rail joint

Abstract

The present application relates to the technical field of track repair, in particular to a rust removal and polishing device for track rail joints. It comprises a polishing machine and a supporting mechanism, the supporting mechanism comprises a base, a first supporting arm connected with the base, and a second supporting arm rotationally connected with the first supporting arm, the end of the second supporting arm is connected with the polishing machine, and the top of the base is provided with an insertion shaft. The supporting assembly is arranged to support the polishing machine at different heights, and the position of the polishing machine is sensed in cooperation with the first supporting arm and the second supporting arm. When the polishing machine is away from the joint position, the first supporting arm is driven to rotate by the second supporting arm, so that the first supporting arm falls to the next height during rotation. In this way, when the height needs to be adjusted, the operator only needs to push the polishing machine to move towards the base, so that the polishing machine can be lowered to the specified height, thereby improving the operation efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of track repair, in particular to a rust removal and polishing device for rail joint of track. BACKGROUND

[0002] Rail joint is the connection of two rails in the longitudinal direction, which is a key part that is indispensable but weak in the structure of railway track. The joint breaks the continuity of the rail. It is both a "break point" in structure and a "weak point" in mechanics. When the train wheels pass through, impact, vibration and noise will be generated, which will cause the joint components to wear out and increase the maintenance workload. With the continuous development of technology, welding joints can also be used, that is, using aluminum heat welding or flash welding to weld the rails into a whole.

[0003] Rail joint rust removal is a key operation of line maintenance, which requires fine treatment of the surfaces at different heights such as rail top, rail shoulder and rail waist. Due to the obvious height difference of each part, the height position of the grinding head must be frequently adjusted during operation. Limited by the power supply conditions around the track, the manual screw type adjusting mechanism commonly used at present is complicated and low in efficiency in actual operation.

[0004] Specifically, after completing the rail top polishing, the operator needs to manually rotate the screw to lower the grinding head to the rail shoulder position; after one side of the polishing is completed, the screw needs to be rotated in the opposite direction to raise the grinding head, move it horizontally to the other side of the rail, and then polish it by rotating and lowering the grinding head again. When processing the rail waist, similar lifting and adjusting need to be repeated. The whole process relies on manual repeated rotation operation, which affects the rust removal efficiency. SUMMARY

[0005] The purpose of the present application is to provide a rust removal and polishing device for rail joint of track, which can quickly drop to the preset height by setting the first support arm and the second support arm in cooperation with the support assembly, so as to solve the problem that the manual screw type adjusting mechanism commonly used at present is complicated and low in efficiency in actual operation.

[0006] To achieve the above purpose, the rust removal and polishing device for rail joint of track comprises a polishing machine and a support mechanism, the support mechanism comprises a base, a first support arm connected with the base, and a second support arm rotationally connected with the first support arm, and the end of the second support arm is connected with the polishing machine;

[0007] The top of the base is provided with a plug shaft, and the end of the first support arm is provided with a sleeve which is sleeved outside the outer circle of the plug shaft, so as to realize the up and down movement of the polishing machine;

[0008] It also comprises a support assembly and a stopper;

[0009] The stopper is protrudedly arranged at the outer ring of the sleeve and is used for synchronous movement with the sleeve;

[0010] The support assembly comprises a plurality of guide rings arranged on the movement path of the stopper, and the guide rings are used for supporting the grinder at a required height when the grinder is supported at different positions of the grinding track; the guide rings are partially provided with a notch for the stopper to pass through; when it is required to adjust the height of the grinder, the grinder is pushed to rotate the stopper to the notch, and the stopper falls to the next guide ring through the notch, and the height of the grinder is supported by the next guide ring.

[0011] In the above technical solution, the grinder rotates the first support arm and the second support arm during movement, and when it is required to adjust the height, the grinder only needs to be moved for a long distance, and at this time, the sleeve can drive the stopper to move to the notch of the guide ring, so that the falling is completed.

[0012] On this basis, the number of guide rings is two, and the two guide rings are a first guide ring and a second guide ring;

[0013] The first guide ring is used for supporting the grinding head of the grinder at the top height of the track;

[0014] The second guide ring is used for supporting the grinding head of the grinder at the shoulder height of the track;

[0015] The grinding head of the grinder is supported at the waist height of the track through the top of the base.

[0016] On this basis, the notch corresponding to the first guide ring is a first through hole, and the notch corresponding to the second guide ring is a second through hole, and the first through hole and the second through hole are in a non-overlapping state in a top view.

[0017] On this basis, the stopper is a stop rod, the stop rod is arranged at the bottom of the sleeve through one-way rotation of a one-way rotation piece, and one end of the stop rod protrudes from the outer ring of the sleeve and is used for contacting the first guide ring or the second guide ring.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] In the track rail joint rusting and grinding device, the support assembly is arranged to support the grinder at different heights, and the first support arm and the second support arm are used to sense the position of the grinder, and when the grinder is away from the joint position, the second support arm drives the first support arm to rotate, so that the first support arm falls to the next height during rotation. In this way, when it is required to adjust the height, the operator only needs to push the grinder to move towards the base, so that the grinder can be lowered to the specified height, thereby improving the operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1Structure diagram of the whole structure of the present application Figure 1 ;

[0021] Figure 2 Structure diagram of the whole structure of the present application Figure 2 ;

[0022] Figure 3 Structure diagram of the limiting cylinder of the present application

[0023] Figure 4 Structure diagram of the support assembly of the present application Figure 1 ;

[0024] Figure 5 Structure diagram of the support assembly of the present application Figure 2 ;

[0025] Figure 6 Structure diagram of the stop rod of the present application

[0026] Figure 7 Working state diagram of the stop rod of the present application

[0027] Figure 8 Position state diagram of the grinding head of the present application Figure 1 ;

[0028] Figure 9 Position state diagram of the grinding head of the present application Figure 2 .

[0029] The meanings of various labels in the drawings are as follows:

[0030] 100, base; 101, base plate; 102, screw rod; 103, insertion shaft; 110, first support arm; 111, sleeve; 112, groove; 113, rotating shaft; 114, stop block; 115, stop rod; 116, torsion spring; 117, roller; 120, second support arm; 121, limiting cylinder; 122, screw rod; 123, connecting piece; 130, grinding head; 131, power system; 132, base; 133, output shaft; 140, support assembly; 141, first guide ring; 142, second guide ring; 143, first through hole; 144, second through hole; 145, fixed tube; 200, track. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0032] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0034] The rail joint needs to use a polishing device for rust removal during maintenance, such as Figure 1 As shown, the polishing device mainly consists of a polishing machine and a supporting mechanism. The polishing machine includes a power system 131 and a grinding head 130 connected with the output shaft 133 of the power system 131, and the power system 131 is installed on the base 132. The supporting mechanism includes a base 100, a first supporting arm 110 rotationally connected with the base 100, and a second supporting arm 120 rotationally connected with the first supporting arm 110, and the end of the second supporting arm 120 is connected with the polishing machine.

[0035] As shown in Figure 2 The base 100 is composed of two inverted "U" shaped plates, and the two "U" shaped plates are connected by a base plate 101. A plurality of base plates 101 are arranged along the outer contour of the base 100, wherein the base plate 101 located at the top of the base 100 is used to install the shaft 103, and the base plate 101 located at both sides of the base 100 is used to connect the screw rod 102, and the base 100 can be fixed on the track 200 by tightening the screw rod 102.

[0036] As shown in Figure 3 A lead screw 122 is rotationally arranged in the limiting cylinder 121 at the end of the second supporting arm 120, and the operating personnel can drive the lead screw 122 to rotate by the hand wheel at the top of the lead screw 122. The outer circle of the lead screw 122 is threadedly connected with a connecting piece 123, one end of the connecting piece 123 slides through the limiting cylinder 121 and is connected with the base 132 in the polishing machine.

[0037] When the rust removal polishing operation is needed, the operating personnel controls the position of the polishing machine through the handrail connected with the second supporting arm 120, so that the polishing machine can move along the track 200 according to Figure 2The state in the middle of the track and along the length of the track 200, to achieve the polishing of the rail top. And in the polishing rail shoulder and rail waist, the need to rotate the screw 122 to adjust the height of the polishing machine. To improve operational efficiency. The present application first in the end of the first support arm 110 is provided with a sleeve 111 set in the outer ring of the shaft 103, sleeve 111 can slide along the axis of the shaft 103, for driving the polishing machine up and down movement; secondly, also provided with support assembly 140 and stop piece.

[0038] The stop piece is provided with a protruding sleeve 111 outside the ring, for synchronous movement with the sleeve 111; support assembly 140 includes a plurality of guide rings in the movement path of the stop piece, a plurality of guide rings for supporting the polishing machine at the required height when polishing the track 200 at different parts; and the local guide ring is provided with a through hole for the stop piece, when the height of the polishing machine needs to be adjusted, the polishing machine is pushed to make the stop piece rotate to the notch, and the stop piece falls to the next guide ring through the notch, and the height of the polishing machine is supported by the next guide ring.

[0039] Specifically, the number of guide rings can be three, three guide rings at different heights, respectively supporting the grinding head 130 of the polishing machine at the rail top height, rail shoulder height and rail waist height, so as to complete the rapid polishing of the track 200 at multiple parts. Alternatively, the number of guide rings can also be two, as shown in Figure 4 The first guide ring 141 is used to support the grinding head 130 at the rail top height, and the second guide ring 142 is used to support the grinding head 130 at the rail shoulder height. Since the rail waist height is the lowest, the grinding head 130 does not need to be moved down after polishing, and therefore the grinding head 130 can be supported at the rail waist height by the top of the base 100.

[0040] As shown in Figure 4 The first guide ring 141 and the second guide ring 142 are fixedly arranged in the inner ring of the fixed tube 145, and the fixed tube 145 is fixed to the top of the base plate 101. The height between the first guide ring 141 and the second guide ring 142 corresponds to the height of the grinding head 130 from the rail top to the rail shoulder, and the height between the second guide ring 142 and the top of the base plate 101 corresponds to the height of the grinding head 130 from the rail shoulder to the rail waist. That is, when the sleeve 111 is at the top of the first guide ring 141, the bottom of the grinding head 130 is in contact with the rail top; when the sleeve 111 is at the top of the second guide ring 142, the side wall of the grinding head 130 is in contact with the rail shoulder; and when the sleeve 111 is at the top of the base plate 101, the side wall of the grinding head 130 is in contact with the rail waist.

[0041] In addition, the first support arm 110 is connected to the top of the sleeve 111 to avoid contact between the first support arm 110 and the support assembly 140 during the downward movement of the sleeve 111.

[0042] As shown in Figure 5 and Figure 7 , the notch is symmetrically arranged along the length direction of the track 200 on the guide ring. The symmetric arrangement can enable the sleeve 111 to drive the stopper to move to the notch in both rotation directions. For example, when the sleeve 111 rotates to the left side of the track 200, it drives the stopper to move to the notch on the right side of the track 200, and when it rotates to the right side, it drives the stopper to move to the notch on the left side of the track 200.

[0043] Specifically, the notch corresponding to the first guide ring 141 is the first through hole 143, and the notch corresponding to the second guide ring 142 is the second through hole 144. In the top view, the first through hole 143 and the second through hole 144 are not in the overlapping state (the projection position of the first through hole 143 refers to the area A in Figure 5 , the reason is that if the first through hole 143 and the second through hole 144 overlap, the sleeve 111 will directly fall from the first guide ring 141 to the top of the base plate 101. For example, in combination with Figure 4 , the required angle of rotation of the stopper to the first through hole 143 is 50 degrees, and the required angle of rotation to the second through hole 144 is 60 degrees, that is, the required angle of rotation of the stopper to the first through hole 143 is less than the required angle of rotation to the second through hole 144. This design avoids the overlapping of the first through hole 143 and the second through hole 144 on the one hand, and on the other hand, when the stopper falls through the first through hole 143, it will fall in the area A in Figure 5 for easy resetting of the stopper.

[0044] As shown in Figure 6 , the stopper is a stop rod 115, which is arranged at the bottom of the sleeve 111 by a one-way rotation member, and one end of the stop rod 115 protrudes from the outer circle of the sleeve 111 for contacting the first guide ring 141 or the second guide ring 142. The one-way rotation member is used to enable the stop rod 115 to have the ability to rotate downward. In this way, when the stop rod 115 is on the top of the base plate 101, the sleeve 111 is directly lifted upward, and in the process of moving upward driven by the sleeve 111, the stop rod 115 rotates downward to pass through the first guide ring 141 and the second guide ring 142.

[0045] The unidirectional rotating component includes a stop block 114 fixedly or rotatably mounted at one end of the stop rod 115. The stop block 114 is rotatably mounted in a groove 112 at the bottom of the sleeve 111 via an internal rotating shaft 113 (the stop block 114 and the rotating shaft 113 are fixedly connected). The end of the stop block 114 away from the stop rod 115 has a semi-circular structure, and this semi-circular structure is coaxial with the rotating shaft 113. When the stop block 114 is in the groove 112, the top of the stop block 114 is in contact with the top of the groove 112. This design prevents the stop block 114 from driving the stop rod 115 to rotate upward. When the stop rod 115 is subjected to a downward force, the semi-circular structure at the end of the sleeve 111 does not interfere with the top of the groove 112, thus achieving unidirectional downward rotation. In addition, a torsion spring 116 is provided between the end of the rotating shaft 113 and the sleeve 111 to support the stop rod 115 in a horizontal state when no force is applied.

[0046] In addition, the outer ring of the stop lever 115 is provided with a roller 117 to reduce the frictional force when in contact with the first guide ring 141 and the second guide ring 142.

[0047] The working principle of the grinding device will be explained in detail below:

[0048] Firstly, as Figure 7 As shown, the joint is at position B. First, the rail top is ground. During grinding, the operator pushes the grinder at position B using the handrail to remove rust from the rail top. After the rail 200 is rust-removed, the grinder is moved to the left side of the rail 200 and then pushed towards the first support arm 110. At this point, the second support arm 120 and the first support arm 110 will form a "V" shape, causing the first support arm 110 to rotate the sleeve 111 and the stop rod 115. When the stop rod 115 rotates to the first opening 143, it falls to the ground under the influence of gravity. Figure 8 In the middle position, the second guide ring 142 restricts the grinding head 130 to the shoulder height.

[0049] refer to Figure 8 Next, the grinder is pulled to the joint position B. The grinder pulls the first support arm 110 back to its original position via the second support arm 120. At this time, the stop bar 115 will rotate between the two second ports 144, so that the grinding head 130 can grind and remove rust from the rail shoulder at the joint position B.

[0050] After the shoulder on the left side of track 200 is ground, continue pushing the grinder towards the first support arm 110. At this time, the stop bar 115 will fall onto the top of the base plate 101 through the second port 144. The base plate 101 supports the sleeve 111, so that the grinding head 130 is in a position where... Figure 9When the height of the grinding head 130 is higher than the height of the rail shoulder, the position of the grinding head 130 can be moved by the handrail, so that the grinding head 130 contacts the rail shoulder, and the grinding of the left rail shoulder is completed.

[0051] When the grinding of the rail shoulder and the rail waist on the left side of the rail 200 is completed, the grinding device is lifted by the handrail, so that the sleeve 111 moves upward. During the upward movement of the sleeve 111, the blocking rod 115 rotates downward and passes the second guide ring 142 and the first guide ring 141 in sequence. At this time, the sleeve 111 is reset to the top of the first guide ring 141. At this time, the above operation is repeated to grind the rail shoulder and the rail waist on the right side of the rail 200.

[0052] It should be noted that, with reference to Figure 9 When grinding the rail waist, the outer circle of the grinding head 130 is used for grinding, so the length of the output shaft 133 of the power system 131 should be referred to the state in Figure 9 so that the height of the base 132 connected with the power system 131 is higher than the top height of the rail 200, so as to avoid affecting the contact between the grinding head 130 and the rail waist.

[0053] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application, and are not used to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A rust removal and grinding device for rail joints, characterized in that: It includes a grinder and a support mechanism. The support mechanism includes a base (100), a first support arm (110) connected to the base (100), and a second support arm (120) rotatably connected to the first support arm (110). The end of the second support arm (120) is connected to the grinder. The base (100) is provided with a shaft (103) at the top, and the end of the first support arm (110) is provided with a sleeve (111) sleeved on the outer ring of the shaft (103), and the up and down movement of the grinder is realized through the sleeve (111). It also includes support components (140) and stops; The stop protrudes from the outer ring of the sleeve (111) and is used to move synchronously with the sleeve (111); The support assembly (140) includes multiple guide rings located on the movement path of the stop member. The multiple guide rings are used to support the grinder at different heights when it is positioned on different parts of the grinding track (200). The guide rings are partially provided with notches for the stop member to pass through. When the height of the grinder needs to be adjusted, the grinder is pushed to rotate the stop member to the notch and then drops it through the notch to the next guide ring, which supports the height of the grinder.

2. The rust removal and grinding device for rail joints according to claim 1, characterized in that: The end of the second support arm (120) is provided with a lead screw (122) for driving the grinder to move up and down, and the height of the grinder is adjusted by the lead screw (122).

3. The rust removal and grinding device for rail joints according to claim 1, characterized in that: The number of guide rings is three, and the three guide rings are at different heights, respectively supporting the grinding head (130) of the grinding machine at the rail top height, rail shoulder height and rail web height.

4. The rust removal and grinding device for rail joints according to claim 1, characterized in that: The number of guide rings is two, namely the first guide ring (141) and the second guide ring (142). The first guide ring (141) is used to support the grinding head (130) of the grinder at the height of the rail top; The second guide ring (142) is used to support the grinding head (130) of the grinder at the shoulder height; The grinding head (130) of the grinder is supported at the height of the rail by the top of the base (100).

5. The rust removal and grinding device for rail joints according to claim 4, characterized in that: The first guide ring (141) and the second guide ring (142) are both fixed to the top of the substrate (101) by a fixing tube (145).

6. The rust removal and grinding device for rail joints according to claim 4, characterized in that: The notch is symmetrically arranged on the guide ring along the length direction of the track (200).

7. The rust removal and grinding device for rail joints according to claim 4 or 6, characterized in that: The notch corresponding to the first guide ring (141) is the first opening (143), and the notch corresponding to the second guide ring (142) is the second opening (144). The first opening (143) and the second opening (144) are not overlapping when viewed from above.

8. The rust removal and grinding device for rail joints according to claim 7, characterized in that: The angle required for the stop to rotate to the first port (143) is less than the angle required to rotate to the second port (144).

9. The rust removal and grinding device for rail joints according to claim 4, characterized in that: The stop is a stop rod (115). The stop rod (115) is unidirectionally rotated at the bottom of the sleeve (111) by a one-way rotating member, and one end of the stop rod (115) protrudes from the outer ring of the sleeve (111) to contact the first guide ring (141) or the second guide ring (142).

10. The rust removal and grinding device for rail joints according to claim 9, characterized in that: The one-way rotating component includes a stop block (114) disposed at one end of the stop bar (115), and the stop block (114) is rotatably disposed in the groove (112) at the bottom of the sleeve (111) via an internal rotating shaft (113); The end of the stop block (114) away from the stop rod (115) is a semi-circular structure for the stop block (114) to rotate downward; A torsion spring (116) is provided between the end of the rotating shaft (113) and the sleeve (111) to support the stop bar (115) in a horizontal state when it is not under force.

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