Overhead hoist transport track and overhead hoist transport system

Abstract

Disclosed in the present invention are an overhead hoist transport track and an overhead hoist transport system. The overhead hoist transport track comprises: a track body, wherein the upper surface of the track body is configured for movement wheels of an overhead hoist transport vehicle to move thereon; a side plate, which comprises a first plate, a second plate and a third plate, wherein the first plate and the second plate are connected to each other and abut against the upper surface and the outer side surface of the track body, respectively, the third plate is arranged on the outer side of the movement wheels and extends upwards from the junction of the first plate and the second plate, and the outer side surface of the side plate is provided with a first inclined surface inclined towards the outer side from top to bottom; and a first block body, which is connected to the track body, wherein part of the inner side surface of the first block body is provided with a second inclined surface matching the first inclined surface, and the first inclined surface abuts against the second inclined surface. The overhead hoist transport track can effectively inhibit the diffusion of particles into a semiconductor manufacturing factory, thereby improving the cleanliness of the factory.

Description

A crane rail and crane system TECHNICAL FIELD

[0001] The present application relates to the field of material handling system for semiconductor manufacturing, in particular to a crane rail and crane system. BACKGROUND

[0002] In the field of semiconductor manufacturing, an automatic material handling system (AHMS) is usually used to transport wafers in wafer boxes. The automatic material handling system includes a crane system and a storage library, wherein the crane system (OHT) includes a crane and a crane rail, and the crane walks along a predetermined path under the guidance of the crane rail to transport the wafer boxes.

[0003] Semiconductor manufacturing has very strict requirements for cleanliness levels, and in the semiconductor industry, particle detection and control are very important. However, during the movement of the crane on the crane rail, the running wheels of the crane and the crane rail will rub and generate a large amount of particles. Since the outer side of the crane rail is open, these particles will be scattered into the semiconductor manufacturing factory outside the crane rail during the movement of the crane, thereby affecting the cleanliness of the entire factory. SUMMARY

[0004] To overcome the above-mentioned shortcomings, the purpose of the present application is to provide a crane rail and crane system that can effectively inhibit the diffusion of particles into the semiconductor manufacturing factory and improve the cleanliness of the factory.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows: a crane rail, comprising:

[0006] a rail body, the upper surface of the rail body being used for the running wheels of the crane to run;

[0007] a side plate, the side plate including a first plate, a second plate and a third plate, the first plate and the second plate being connected and abutting the upper surface and the outer side of the rail body respectively, the third plate being arranged outside the running wheels and extending upward from the connection of the first plate and the second plate, the outer side of the side plate being provided with a first inclined surface inclined outward from top to bottom;

[0008] a first block body connected with the rail body, the inner side of part of the first block body being provided with a second inclined surface matched with the first inclined surface, the first inclined surface and the second inclined surface being abutted.

[0009] Further, the first inclined surface is located at the connection of the first plate and the second plate.

[0010] Further, the first block body includes a pressing portion, the pressing portion being provided with a first groove body outward along the inner side thereof, part of the side plate being embedded in the first groove body, and the upper surface of the first groove body being the second inclined surface.

[0011] Further, the first block further comprises a connecting portion below the pressing portion, the connecting portion extends below the third plate, the upper end of the connecting portion is pre-tightly connected with the track body, and the lower end of the connecting portion is in abutment with the outer side of the track body.

[0012] Further, the track further comprises a second block, the second block is connected with the upper end of the connecting portion through a first fastener, the track body is provided with a second groove along the outer side to the inner side, the second groove comprises an opening and first and second stop surfaces on the upper and lower sides of the opening, and the side of the second block close to the opening is in abutment with the first and second stop surfaces.

[0013] Further, the second groove further comprises a third inclined surface above the second block, the third inclined surface extends upward along the first stop surface and is inclined to the side away from the opening.

[0014] Further, the inner side of the first block extends an positioning boss in the inner side, the positioning boss is inserted into the opening, and the thickness of the positioning boss in the horizontal direction is less than the thickness of the opening in the horizontal direction.

[0015] Further, the vertical distance from the top end of the third plate to the upper surface of the track body is greater than or equal to 40 mm and less than or equal to 60 mm, and the distance from the inner side of the top end of the third plate to the outer side of the walking wheel in the horizontal direction is not less than 20 mm.

[0016] The application further discloses a crown block system, which comprises the track and a power taking assembly on the inner side of the track body.

[0017] The outer side of the wire fixing member is provided with a first protrusion protruding outward, and the inner side of the wire fixing member is suspended, the inner side of the track body is provided with a third groove for inserting the first protrusion, and the first protrusion at least partially abuts with the third groove;

[0018] The connecting assembly is fixedly connected with the track body, and the connecting assembly fixes the wire fixing member on the track body.

[0019] Further, the third groove comprises a third groove top surface close to the outer side and a third groove bottom surface close to the inner side, the upper surface of the first protrusion close to the outer side abuts with the third groove top surface, and the lower surface of the first protrusion close to the inner side abuts with the third groove bottom surface.

[0020] Further, the connecting assembly comprises a connecting plate and a second fastener, the connecting plate is connected with the guide rail body through the second fastener, one end of the connecting plate close to the wire fixing member is provided with a second protrusion protruding downward, the second protrusion forms a slot with the inner side of the track body, the outer side of the wire fixing member is provided with a third protrusion protruding upward, and the third protrusion is inserted into the slot. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a structural schematic diagram of a crown block system according to an embodiment of the present application;

[0022] Fig. 2 is an enlarged view of part A in Fig. 1;

[0023] Fig. 3 is an enlarged view of part B in Fig. 2;

[0024] Fig. 4 is an enlarged view of part D in Fig. 2;

[0025] Fig. 5 is a structural schematic diagram of a side plate according to an embodiment of the present application;

[0026] Fig. 6 is a structural schematic diagram of a block body 1 according to an embodiment of the present application;

[0027] Fig. 7 is a structural schematic diagram of a track body according to an embodiment of the present application;

[0028] Fig. 8 is an enlarged view of part C in Fig. 1. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art, and the scope of protection of the present application can be more clearly defined.

[0030] As shown in Figs. 1 to 8, an embodiment of a crown block track and a crown block system is provided.

[0031] Fig. 1 shows a crown block system according to an embodiment of the present application. Two crown block tracks of the crown block system are arranged in parallel, and two rows of walking wheels 51 of a crown block are arranged on the two crown block tracks respectively. The crown block 5 can travel along the extension direction of the crown block tracks through the walking wheels 51. In the following, the outer side refers to the side opposite to the two rows of walking wheels 51, and the inner side refers to the side opposite to the two rows of walking wheels 51. The outer side surface refers to the surface facing the outer side, and the inner side surface refers to the surface facing the inner side.

[0032] Referring to FIG. 2, FIG. 3 and FIG. 5, the overhead rail includes a rail body 1, a side plate 2 and a first block 3. The side plate 2 includes a first plate 21, a second plate 22 and a third plate 23, the first plate 21 abuts against the upper surface 11 of the rail body, a first closed path in horizontal direction is formed between the first plate 21 and the upper surface 11 of the rail body, the second plate 22 is connected with the first plate 21, the second plate 22 abuts against the outer side surface 12 of the rail body, a second closed path in vertical direction is formed between the second plate 22 and the outer side surface 12 of the rail body, the third plate 23 is located outside the walking wheel 51 and extends upward from the connection between the first plate 21 and the second plate 22, the outer side surface of the side plate 2 is provided with a first inclined surface 201 inclined outward from top to bottom; the first block 3 is connected with the rail body 1, the inner side surface of part of the first block 3 is provided with a second inclined surface 3111 matched with the first inclined surface 201, and the first inclined surface 201 and the second inclined surface 3111 abut against each other.

[0033] When the walking wheel 51 walks along the rail body 1, friction occurs between them and generates particles, by locating the third plate 23 outside the walking wheel 51, the particles caused by the airflow drifting with the traveling of the overhead crane 5 can be blocked from drifting to the outside of the rail body 1, thereby avoiding a large number of particles from falling into the semiconductor manufacturing factory and damaging the cleanliness of the semiconductor manufacturing factory;

[0034] By abutting the first plate 21 against the upper surface 11 of the rail body and abutting the second plate 22 against the outer side surface 12 of the rail body, two closed paths are formed between the upper surface 11 of the rail body and the first plate 21 and between the outer side surface 12 of the rail body and the second plate 22, thereby sealing the connection between the side plate 2 and the rail body 1 from two directions, which can avoid particles from leaking from the connection between the side plate 2 and the rail body 1 to the semiconductor factory below;

[0035] By providing the outer side surface of the side plate 2 with the first inclined surface 201 inclined outward from top to bottom and providing the inner side surface of part of the first block 3 with the second inclined surface 3111 matched with the first inclined surface 201, when the first block 3 is connected with the rail body 1, the first inclined surface 201 and the second inclined surface 3111 can abut against and abut each other. The side plate 2 will be pressed by the pressing force of the first block 3 substantially perpendicular to the first inclined surface 201 at the first inclined surface 201, which can press the first plate 21 and the second plate 22 of the side plate 2 on the rail body 1 at the same time, thereby improving the sealing performance of the two closed paths;

[0036] By setting the root of the third plate 23 at the connection of the first plate 21 and the second plate 22, the compression force not only compresses the first plate 21 and the second plate 22, but also makes the root of the third plate 23 more stable. When the third plate 23 is disturbed by the airflow caused by the running of the overhead crane 5, the stable root of the third plate 23 can reduce the swing amplitude of the top end of the third plate 23, and further avoid the interference between the top end of the third plate 23 and the overhead crane 5 due to the excessive swing amplitude.

[0037] When the third plate 23 has a tendency to move upward due to the airflow caused by the running of the overhead crane 5, the first inclined surface 201 of the side plate 2 will be stopped by the second inclined surface 3111 of the first block 3, thereby preventing the upward movement of the side plate 2 and avoiding the increase of the gap of the first closed path between the second plate 22 and the upper surface 11 of the track body, so as to improve the sealing reliability of the connection between the side plate 2 and the track body 1.

[0038] Referring to FIG. 3, in an embodiment, the first inclined surface 201 is located at the connection of the first plate 21 and the second plate 22. When the first inclined surface 201 is subjected to a compression force perpendicular to the first inclined surface 201, by locating the first inclined surface 201 at the connection of the first plate 21 and the second plate 22, the position of the compression force can be avoided to be at the lower end of the second plate 22, which causes the lower end of the second plate 22 to be elastically deformed and tightly contact the outer side surface 12 of the track body to generate a large friction force, thereby failing to compress the first plate 21 connected to the second plate 22 on the upper surface 11 of the track body. The position of the compression force can also be avoided to be at the upper end of the third plate 23, which causes the outer side of the lower end of the second plate 22 to be extruded by the inner side wall of the first block 3 to generate a large friction force, thereby failing to compress the first plate 21 connected to the second plate 22 on the upper surface 11 of the track body.

[0039] Referring to FIGS. 2 and 6, in an embodiment, the first block 3 includes a compression portion 31, and a first groove 311 is formed in the inner side surface of the compression portion 31 to the outer side surface. Part of the side plate 2 is embedded in the first groove 311, and the upper surface of the first groove 311 is a second inclined surface 3111.

[0040] The first block 3 further includes a connecting portion 32 below the compression portion 31, the connecting portion 32 extends below the second plate 22, the upper end of the connecting portion 32 is pre-tightly connected to the track body 1, and the lower end of the connecting portion 32 abuts against the outer side surface 12 of the track body.

[0041] The upper end of the connecting part 32 is pre-tightened to the track body 1, for example, by screwing, the upper end of the connecting part 32 is pre-tightened to the track body 1 by screwing, under the action of the pre-tightening force, the lower end of the connecting part 32 is pressed against the outer side surface 12 of the track body, the second inclined surface 3111 of the pressing part 31 is pressed against the first inclined surface 201 of the side plate, the first inclined surface 201 makes the first block 3 have a tendency to move upward, the lower end of the connecting part 32 is subjected to a downward friction force from the outer side surface 12 of the track body, and the downward friction force and the pressing force of the second inclined surface 3111 against the first inclined surface 201 make the first inclined surface 201 be subjected to a pressing component force that is substantially perpendicular to the first inclined surface 201, which can press the first plate 21 and the second plate 22 of the side plate against the upper surface 11 of the track body and the outer side surface 12 of the track body, respectively, thereby improving the sealing performance of the two closed paths.

[0042] As shown in FIG. 3, the first groove body 311 further includes a first groove bottom surface 3112 and a first groove side surface 3113, and the second inclined surface 3111, the first groove side surface 3113 and the first groove bottom surface 3112 are connected in sequence. When the first inclined surface 201 and the second inclined surface 3111 are tightly fitted, the inner side surface 321 of the connecting part, the outer side surface 12 of the track body, the inner side surface 312 of the pressing part, the outer side surface 231 of the third plate, the first groove side surface 3113 and the outer side surface 222 of the second plate, and the first groove bottom surface 3112 and the lower surface 223 of the second plate are in contact, or there is a small gap between the inner side surface 321 of the connecting part, the outer side surface 12 of the track body, the inner side surface 312 of the pressing part, the outer side surface 231 of the third plate, the first groove side surface 3113 and the outer side surface 222 of the second plate, and the first groove bottom surface 3112 and the lower surface 223 of the second plate. When the first block 3 needs to apply pressure to the side plate 2, other surfaces of the first block 3 should not interfere with the fitting of the first inclined surface 201 and the second inclined surface 3111, so that the first inclined surface 201 and the second inclined surface 3111 can be tightly fitted and pressed.

[0043] When installing the crane track on the spot of the semiconductor manufacturing factory, the track body 1 needs to be connected to the grappling hook on the roof to avoid the equipment on the top of the factory, and the screw connecting the first block 3 to the track body 1 also needs to avoid the grappling hook position. Since the position of the equipment on the top of the semiconductor manufacturing factory is uncertain, the screw hole on the track body 1 cannot be opened in the accurate position in advance, and the position of the screw hole connecting the first block 3 to the track body 1 and the grappling hook position interfere with each other, making it difficult to smoothly install the side plate 2 on the track body 1.

[0044] To this end, in one embodiment, referring to FIG. 2, FIG. 4 and FIG. 7, the overhead rail further comprises a second block 4 connected with the upper end of the connecting part 32 by a first fastener, the rail body 1 is provided with a second slot 13 along the outer side 12 of the rail body 1, the second slot 13 comprises an opening 131 and a first stop surface 132 and a second stop surface 133 located on the upper and lower sides of the opening 131, and the side of the second block 4 close to the opening 131 abuts against the first stop surface 132 and the second stop surface 133.

[0045] The second block 4 can be obliquely installed into the second slot 13 from the opening 131, after the second block 4 is installed into the second slot 13, the second block 4 is pushed to abut against the bottom of the second slot 13 so that the threaded hole on the second block 4 matched with the first fastener is aligned with the opening, and then the second block 4 is fastened with the first block by the first fastener, at this time, the side of the second block 4 close to the opening 131 is tightly abutted against the first stop surface 132 and the second stop surface 133, and the second block 4 will not be pulled out of the second slot 13, at this time, the first block 3 is pulled by the first fastener, part of the pulling force makes the first block 3 clamps the rail body 4 together with the second block 4 to realize the connection between the first block 3 and the rail body 1, and the other part of the pulling force makes the first block 1 tightly press the side plate 2 on the rail body 1, so that the side plate 2 can be connected with the rail body 1 at any position without opening a threaded hole on the rail body 1, thereby avoiding the situation that the screw hole is needed to be set on the rail body 1 and the side plate 2 is difficult to be smoothly installed on the rail body 1 due to the interference between the screw hole and the position of the grab hook.

[0046] The rail body 1 can be formed by die extrusion without machining, and the rail body 1 does not need to be machined. When the side plate 2 needs to be fixed at any position of the rail body 1, the second block 4 is inserted into the second groove 13 at the position, and the first block 3 is fastened by the first fastener such as a screw or a bolt. The pressing part 31 of the first block 3 can press the first plate 21 and the second plate 22 of the side plate 2 synchronously on the rail body 1. Thus, the rail body 1 of the embodiment is simple to process, and the rail body 1 and the side plate 2 are simple to install. As shown in FIG. 4 and FIG. 7, further, the second groove 13 further includes a third inclined surface 134 extending upward along the first stop surface 132 and inclined toward the side away from the opening 131. The distance between the upper end of the first stop surface 132 and the lower end of the second stop surface 133 is not less than the length of the second block 4. When the second block 4 is limited in the second groove 13, the third inclined surface 134 is above the second block 4. When the second block 4 has a tendency to slide upward, the third inclined surface 134 can limit the second block 4 from sliding upward, so as to avoid the problem that only one of the first stop surface 132 and the second stop surface 133 contacts the second block 4 after the second block 4 slides upward, and the screw is broken by a bending moment.

[0047] The second groove 13 includes a second groove bottom surface 135 extending horizontally along the lower edge of the second stop surface 133. When the second block 4 is fixed with the first block 3, the second block 4 abuts against the second groove bottom surface 135 or a small gap is left between the second block 4 and the second groove bottom surface 135, so as to avoid the problem that the second block 4 slides downward or the distance of sliding is too large, and only one of the first stop surface 132 and the second stop surface 133 contacts the second block 4, and the screw is broken by a bending moment.

[0048] When the second block 4 is installed, the second block 4 is inclined from below to above and enters the second groove 13 toward the inside. When the second block 4 enters the second groove 13, the lower end of the second block 4 is pushed to abut against the second groove bottom surface 135. In this process, the second block 4 slides downward along the third inclined surface 134 and rotates to a vertical state.

[0049] As shown in FIG. 7, the second groove 13 includes a first part 13a and a second part 13b located on both sides of the horizontal plane where the center line of the opening 131 is located. The height H1 of the first part 13a in the vertical direction is greater than the height H2 of the second part 13b in the vertical direction, and the depth H3 of the top of the first part 13a in the horizontal direction is greater than the depth H4 of the second part 13b in the horizontal direction. Thus, the inclined second block 4 is given space, and it is ensured that the second block 4 can be inclined to enter the second groove 13.

[0050] In one embodiment, referring to FIG. 6 and FIG. 4, the inner side of the connecting part 321 extends inwardly with a positioning boss 322, which matches and is inserted into the opening 131. The thickness of the positioning boss 322 in the horizontal direction is less than the thickness of the opening 131 in the horizontal direction, so that the positioning boss 322 does not extend into the second groove body 13 and does not interfere with the installation of the mounting block. At the same time, the length of the positioning boss 322 in the vertical direction is slightly less than the length of the opening 131 in the vertical direction. When the first block 3 is installed, the positioning boss 322 is first inserted into the opening 131, which preliminarily limits the position of the first block 3, and at the same time, the first block 3 can be slightly adjusted in the vertical direction.

[0051] The third plate 23 is usually a thin plate with a small thickness, but the height of the third plate 23 should not be too high, otherwise the root of the third plate 23 close to the first plate 21 will be subjected to a large alternating force when the third plate 23 is disturbed. At the same time, the height of the third plate 23 should not be too low, otherwise it cannot block the drifting of particles. Therefore, in one embodiment, referring to FIG. 2, the distance between the top end of the third plate and the upper surface 11 of the track body in the vertical direction is L1, and 60mm≥L1≥40mm.

[0052] Similarly, the distance between the third plate 23 and the walking wheel 51 in the horizontal direction should not be too small, otherwise the third plate 23 will interfere with the crown block 5 when it is disturbed. Therefore, the vertical distance between the inner side 232 of the third plate and the outer side of the walking wheel 51 in the horizontal direction is L2, and L2≥20mm. When the inner side 232 of the third plate is a bending surface, it is ensured that the distance between the inner side of the top end of the third plate and the outer side of the walking wheel in the horizontal direction is not less than 20mm.

[0053] In one embodiment, referring to FIG. 1, the overhead crane system of the present application comprises a power taking assembly 6, the overhead crane track and the overhead crane 5, wherein the power taking assembly 6 is fixedly connected with the track body 1 one by one, and the power taking assembly 6 is used to supply power to the overhead crane 5. The power taking assembly 6 is located on the inner side of the track body 1, and it can collect the particles drifting towards the inner side, so as to avoid the particles falling into the semiconductor manufacturing plant from the inner side of the track body 1 and reduce the cleanliness of the semiconductor manufacturing plant.

[0054] Referring to FIG. 7 and FIG. 8, the power taking assembly 6 comprises a Litz wire 61, a wire fixing part 62 and a connecting assembly 63. The wire fixing part 62 is fixedly connected with the track body 1 through the connecting assembly 63. The outer side of the wire fixing part 62 is provided with a first protrusion 621 protruding outwardly, and the inner side of the track body 1 is provided with a third groove body 14 formed by opening outwardly along the inner side of the track body 1. The first protrusion 621 is inserted into the third groove body 14, the Litz wire 61 is fixed on the inner side of the wire fixing part 62, and the inner side of the wire fixing part 62 is suspended.

[0055] The wire fixing member 62 is a cantilever structure fixed to the track body 1 at the outer side. The wire fixing member 62 is used for fixing the Litz wire 61, and the upper surface of the wire fixing member 62 can carry the particles drifting inwardly when the trolley 5 is running, so as to avoid the particles falling into the semiconductor manufacturing factory from the inner side of the track body 1 and reduce the cleanliness of the semiconductor manufacturing factory.

[0056] Referring to FIG. 8, the third groove body 14 includes a third groove top surface 141 and a third groove bottom surface 142 close to the inner side. The outer side of the first protrusion 621 extends upwardly with a protrusion 6211, and the upper surface of the protrusion 6211 abuts against the third groove top surface 141. The lower surface of the first protrusion 621 abuts against the third groove bottom surface 142. When the first protrusion 621 is inserted into the third groove body 14, the wire fixing member 62 is fixed to the track body 1 at the outer side, and the upper surface of the protrusion 6211 is tightly attached to the third groove top surface 141 by the gravity of the wire fixing member 62, so as to form a third closed path between the two. Meanwhile, the lower surface of the first protrusion 621 is tightly attached to the third groove bottom surface 142, so as to form a fourth closed path between the two. The third closed path and the fourth closed path can effectively avoid the particles leaking from the joint of the wire fixing member 62 and the track body 1, and play a sealing role.

[0057] The outer side of the first protrusion 621 can not be provided with the upward protrusion 6211, and the upper surface of the first protrusion 621 directly abuts against the third groove top surface 141. Or the lower surface of the first protrusion 621 close to the inner side extends downwardly with a downward protrusion, and the downward extending protrusion abuts against the third groove bottom surface 142. As long as the first protrusion 621 has a tendency of swinging upwardly at the outer side by the gravity of the wire fixing member 62, two closed paths can be formed.

[0058] Of course, only the fourth closed path can be formed, that is, only the lower surface of the first protrusion 621 close to the outer side is tightly attached to the third groove bottom surface 142. However, the two closed paths have obviously better sealing effect.

[0059] Referring to FIG. 8, the connecting assembly 63 includes a connecting plate 631 and a second fastener 632. The connecting plate 631 is fixedly connected to the track body 1 through the second fastener 632. The connecting plate 631 includes a second protrusion 6311 extending in the vertical direction, and the second protrusion 6311 and the inner side of the track body 1 form a clamping groove. The outer side of the wire fixing member 62 is provided with a third protrusion 622 capable of being inserted into the clamping groove. When the third protrusion 622 is inserted into the clamping groove, the second protrusion 6311 presses the third protrusion 622 towards the track body 1, and the third protrusion 622 is limited between the second protrusion 6311 and the inner side of the track body 1.

[0060] Referring to FIG. 7 and FIG. 8, the track body 1 is further provided with a fourth slot 15, and a part of the connecting plate 631 is embedded in the fourth slot 15, and the fourth slot 15 is used to preliminarily limit the position of the connecting plate 631. Of course, the fourth slot 15 can not be provided, and the connecting plate 631 and the track body 1 can be directly fixed and connected through the second fastener 632.

[0061] The second fastener 632 is a sliding block nut and a screw, and the connecting plate 631 and the track body 1 at any position can be connected, pressed and fixed through the sliding block nut and the screw. The second fastener 632 can also be a screw, and the connecting plate 631 is connected with the track body 1 through the screw.

[0062] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable the person skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A crown block rail, characterized in that, The utility model relates to a track for a travelling crane, comprising: a track body, an upper surface of the track body for a travelling wheel of a travelling crane to travel on; a side plate, the side plate comprising a first plate, a second plate and a third plate, the first plate and the second plate being connected and abutting against the upper surface and the outer side of the track body respectively, the third plate being arranged outside the travelling wheel and extending upward from the connection between the first plate and the second plate, an outer side of the side plate being provided with a first inclined surface inclined outward from top to bottom; a first block, the first block being connected with the track body, an inner side of part of the first block being provided with a second inclined surface matched with the first inclined surface, the first inclined surface and the second inclined surface abutting against each other.

2. The crown rail as claimed in claim 1, wherein: The first inclined surface is located at the connection between the first plate and the second plate.

3. The crown rail as claimed in claim 1 or 2, characterized in that: The first block comprises a pressing part, the pressing part being provided with a first groove along an inner side of the pressing part, part of the side plate being embedded in the first groove, and an upper surface of the first groove being the second inclined surface.

4. The crown rail of claim 3, wherein: The first block further comprises a connecting part below the pressing part, the connecting part extending below the third plate, an upper end of the connecting part being pre-tightened with the track body, and a lower end of the connecting part abutting against the outer side of the track body.

5. The crown rail of claim 4, wherein: The utility model further comprises a second block, the second block being connected with the upper end of the connecting part through a first fastener, the track body being provided with a second groove along an outer side of the track body, the second groove comprising an opening and a first stop surface and a second stop surface located on both sides of the opening, and a side of the second block close to the opening abutting against the first stop surface and the second stop surface.

6. The crown rail of claim 5, wherein: The second groove further comprises a third inclined surface above the second block, the third inclined surface extending upward along the first stop surface and inclined toward a side away from the opening.

7. The crown rail of claim 5, wherein: An inner side of the first block extends a positioning boss inward, the positioning boss being inserted into the opening, and a thickness of the positioning boss in a horizontal direction being less than a thickness of the opening in the horizontal direction.

8. The crown rail of claim 1, wherein: A distance between a top end of the third plate and an upper surface of the track body in a vertical direction is greater than or equal to 40 mm and less than or equal to 60 mm, and a distance between an inner side of the top end of the third plate and an outer side of the travelling wheel in a horizontal direction is not less than 20 mm.

9. A crown block system characterized by: The utility model further comprises a power taking assembly arranged inside the track body, the power taking assembly comprising: a wire fixing part, an outer side of the wire fixing part being provided with a first protrusion protruding outward, and an inner side of the wire fixing part being suspended, an inner side of the track body being provided with a third groove for the first protrusion to be inserted into, and the first protrusion at least partially abutting against the third groove; a connecting assembly, the connecting assembly being fixedly connected with the track body, and the connecting assembly fixing the wire fixing part on the track body.

10. The crown block system of claim 9, wherein: The third groove comprises a third groove top surface close to the outer side and a third groove bottom surface close to the inner side, an upper surface of the first protrusion close to the outer side abutting against the third groove top surface, and a lower surface of the first protrusion close to the inner side abutting against the third groove bottom surface.

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