Metal crawler belt capable of steering in single use
By designing a metal track structure that includes track plates, track posts, universal connectors, and other components, the problem of difficult steering in traditional tracked special vehicles has been solved, achieving flexible steering and improved stability of a single track.
Patent Information
- Application Number
- CN202423164673.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-21
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-21
AI Technical Summary
The steering of existing metal tracked special vehicles is limited by traditional mechanical structures, making it difficult to achieve left and right steering with a single track.
A metal track structure was designed, comprising track plates, track posts, track universal connectors, thickened inner square and outer round washers, large flat head screws, double-ended threaded pins, limit bushings, and cylindrical nuts. Through the combination of these components, the track can be flexibly turned.
It enables flexible steering of a single metal track, expands its application range, reduces costs, and improves track stability and flexibility.
Smart Images
Figure CN223686699U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to caterpillar technology field, concretely is a kind of metal caterpillar that single strip use can easily turn left and right. BACKGROUND
[0002] The metal caterpillar that we have seen before, structure and style are various, they give the advantages of strong traction and passing force to caterpillar type special vehicle, but due to the limitation of traditional mechanical structure design of metal caterpillar itself, the turning of these caterpillar type special vehicles using metal caterpillar is a big problem, some are realized by double caterpillar differential left and right, also by other ways, for example: half-wheel half-caterpillar type motorcycle, it is realized by front steering wheel, also half-snow shovel half-caterpillar type snowmobile, it is realized by front snow shovel, if there is no differential or no front steering wheel, or no front snow shovel, these caterpillar type special vehicles can only straight ahead or straight back. Therefore, breaking through the traditional design of metal caterpillar, changing the traditional mechanical structure of metal caterpillar, designing a metal caterpillar that can easily realize left and right turning even single strip use becomes the top priority. SUMMARY
[0003] The purpose of the present application is to provide a metal caterpillar that can realize left and right turning even single strip use, to solve the problem raised in the background art.
[0004] In order to achieve the above problem, the present application provides the following technical scheme:
[0005] The metal caterpillar that can turn even single strip use, comprising caterpillar plate, caterpillar column, caterpillar universal connecting piece, inner square outer circle thickened gasket, large flat head screw, double-headed threaded pin shaft, limiting shaft sleeve and cylindrical nut; the caterpillar plate is a rhombic metal thick plate with a center hole, and the surface in contact with the ground is welded with reinforcing ribs and anti-skid teeth; the caterpillar column has a longitudinal center point on the main body cylinder, a horizontal through hole is drilled at the center point, the top end face has internal threads, the top end is milled into a square column, the bottom has a welded cylinder, and the upper end of the welded cylinder is a protruding limiting part; the caterpillar universal connecting piece is made of a thick-walled metal square tube segment, and is divided into a large hole end and a small hole end; the large hole end of the large hole is sleeved on the main body cylinder of the caterpillar column; the inner square outer circle thickened gasket is sleeved on the square column at the top end of the caterpillar column and presses the caterpillar universal connecting piece; the large flat head screw is screwed into the internal threads of the end face of the top end of the caterpillar column and presses the inner square outer circle thickened gasket; the double-headed threaded pin shaft passes through the middle hole of the caterpillar column and also passes through the small hole of the small hole end of the adjacent caterpillar universal connecting piece; the limiting shaft sleeve has two in each caterpillar assembly, respectively sleeving on the two sides of the double-headed threaded pin shaft after passing through the middle hole of the caterpillar column; the cylindrical nut has two in each caterpillar assembly, respectively screwed on the threads at both ends of the double-headed threaded pin shaft.
[0006] As a further scheme of the patent: the track plate is a metal thick plate with a central hole, and the design of the rhombus is to leave more space for the steering radius when the metal track is realized to steer left and right, and the inner diameter of the central hole is equal to the diameter of the welded cylinder of the track column.
[0007] As a further scheme of the patent: when the track plate is processed, the two long diagonals are cut off and polished flat to prevent sharp diagonals from scratching personnel.
[0008] As a further scheme of the patent: when the track plate is processed, the side in contact with the ground is welded with reinforcing ribs and anti-skid teeth to increase the support strength and grip of the track plate itself.
[0009] As a further scheme of the patent: the track column is a key component of the track steering, with a hole in the middle, an inner thread on the top end face, a square column milled on the top, and a welded cylinder at the bottom, and the upper end of the welded cylinder is a protruding limiting part.
[0010] As a further scheme of the patent: when the track column is processed, the diameter of the main cylinder of the track column and the diameter of the cylinder for making the square column are equal, and according to the size of the part drawing, the metal round bar is first turned into the main cylinder of the track column and the overall cylinder for making the square column, then the protruding limiting part of the track column is turned, and then the welded cylinder of the track column is turned.
[0011] As a further scheme of the patent: when the track column is processed, the top end of the main cylinder of the track column and the overall cylinder for making the square column is processed into a square column, and the diagonal of the processed square column is equal to the diameter of the main cylinder, and the cross section of the square column is matched with the square hole of the inner square outer circle thickening gasket.
[0012] As a further scheme of the patent: the height of the square column at the top end of the track column can only be less than or equal to the thickness of the inner square outer circle thickening gasket, if it is greater than the thickness of the inner square outer circle thickening gasket, the track universal joint and the inner square outer circle thickening gasket will move up and down, and the parts will be easily damaged.
[0013] As a further scheme of the patent: the middle hole of the track column is a through hole drilled at the middle point of the main cylinder, the inner diameter of the middle hole is equal to the diameter of the double-threaded pin shaft, and the height of the main cylinder is equal to the single-side length of the outer diameter of the thick-walled metal square tube for making the track connecting piece.
[0014] As a further scheme of the patent: the height of the welded cylinder of the track column is equal to the thickness of the track plate, the welded cylinder is inserted through the central hole of the track plate and welded firmly, and when welding, the direction of the middle hole of the track column is consistent with the direction of the long diagonal of the track plate.
[0015] As a further scheme of the patent: the internal thread of the top end surface of the track column is matched with a large flat head screw.
[0016] As a further scheme of the patent: the track universal connecting piece is made of a thick-walled metal square tube segment, which is divided into a large hole end and a small hole end. The large hole end is drilled with a large through hole up and down, and the small hole end is drilled with a small through hole left and right. The square tube wall without drilling holes at both ends is removed to leave installation and movement space between the two adjacent track universal connecting pieces during assembly and after assembly.
[0017] As a further scheme of the patent: during processing and manufacturing, the two right angles of the top end of the square tube wall drilled with a large hole and a small hole are removed, and the top end of each square tube wall with two right angles removed is polished into a total semicircle to prevent the track universal connecting piece from being stuck by the right angle of the tube wall during the upwinding action and left and right turning action of the metal track.
[0018] As a further scheme of the patent: during processing and manufacturing, the width of each square tube wall drilled with a large hole and a small hole is less than the single side length of the inner diameter of the metal square tube, so that after the large hole end of the track universal connecting piece is assembled and combined with the small hole end of the adjacent track universal connecting piece through the corresponding parts, a movement space is left to prevent the occurrence of jamming.
[0019] As a further scheme of the patent: a certain size of original thick-walled metal square tube is left between the large hole end and the small hole end of the track universal connecting piece, which becomes a connecting body between the large hole end and the small hole end to increase the tension strength of the track universal connecting piece.
[0020] As a further scheme of the patent: the inner diameter of the large hole of the track universal connecting piece is equal to the diameter of the main cylindrical body of the track column, and the inner diameter of the small hole of the small hole end is equal to the diameter of the double-threaded pin shaft. The large hole of the large hole end is sleeved on the processed main cylindrical body of the track column, and the small hole of the small hole end is combined with the double-threaded pin shaft on the adjacent track column.
[0021] As a further scheme of the patent: the outer diameter of the inner square and outer circle thickened gasket is larger than the diameter of the large hole of the track universal connecting piece, which is sleeved on the square column at the top end of the track column to press the track universal connecting piece and prevent the track universal connecting piece from falling off the track column. The gasket is designed as an inner square and outer circle to press the track universal connecting piece and prevent the loosening of the tightened large flat head screw during the left and right turning of the metal track.
[0022] As a further scheme of the patent: the large flat head screw is installed in the inner thread of the square column top end surface of the track column, presses the inner square outer circle thickened gasket and is tightened, and the area of the screw cap is larger than the area of the square hole of the inner square outer circle thickened gasket.
[0023] As a further scheme of the patent: the double-threaded pin shaft is a key part for connecting the whole metal track, is installed in the middle hole of the track column, and passes through the small holes at the small hole ends of the adjacent track universal connecting pieces, and plays a role of connecting the adjacent track universal connecting pieces.
[0024] As a further scheme of the patent: the length of the double-threaded pin shaft is the sum of the length of the outer diameter of the thick-walled metal square tube for making the track universal connecting piece and the length of the two cylindrical nuts.
[0025] As a further scheme of the patent: the inner diameter of the limiting shaft sleeve is equal to the diameter of the double-threaded pin shaft, and there are two in each group of metal track assemblies, which are respectively sleeved on the two ends of the double-threaded pin shaft after passing through the middle hole of the track column, to prevent the double-threaded pin shaft from sliding left and right in the middle hole of the track column after tightening the two cylindrical nuts at the two ends, causing the track universal connecting piece to be not centered, and playing a role of limiting the track universal connecting piece.
[0026] As a further scheme of the patent: the length of the limiting shaft sleeve is the difference between the length of the outer diameter of the thick-walled metal square tube for making the track universal connecting piece and the diameter of the main body of the track column, divided by two, and the obtained value is the length of a single limiting shaft sleeve.
[0027] As a further scheme of the patent: there are two cylindrical nuts in each group of metal track assemblies, which are respectively tightened on the threads at the two ends of the double-threaded pin shaft.
[0028] As a further scheme of the patent: when the cylindrical nut is used after the assembly of the whole metal track is completed, the teeth of the drive wheel of the tracked special vehicle can catch and move the cylindrical nuts on both sides of the track universal connecting piece, so that the whole metal track can run.
[0029] As a further scheme of the patent: after the assembly of the single metal track that can also be turned, the head and tail are connected to form a loop, and the number of groups that need to be assembled is determined according to the size of use.
[0030] As a further scheme of the patent: each part of the single metal track that can also be turned is made of metal, mainly to increase the tensile strength and support force of the metal track itself.
[0031] Compared with the prior art, the metal track of the patent has the advantages of more ingenious design, more flexible use, wider use, lower cost, single-track use, more flexible use, double-track use and more stable use. BRIEF DESCRIPTION OF DRAWINGS
[0032] Figure 1 State diagram of the track of the metal track that can turn for single-track use.
[0033] Figure 2 Stereogram of the track plate and the accessory fittings of the metal track that can turn for single-track use.
[0034] Figure 3 Stereogram of the track universal connecting piece and the accessory fittings of the metal track that can turn for single-track use.
[0035] Figure 4 Assembling schematic diagram of the metal track that can turn for single-track use.
[0036] Figure 5 Assembling effect diagram of the metal track that can turn for single-track use.
[0037] Figure 6 State diagram of the track of the metal track that can turn for single-track use in straight running and winding.
[0038] 1 track plate, 101 track column, 102 inner square and outer round thickened gasket, 103 large flat head screw, 2 track universal connecting piece, 201 double-headed threaded pin shaft, 202 cylindrical nut, 203 limiting shaft sleeve. DETAILED DESCRIPTION
[0039] The technical solution of the patent is further described in detail, clearly and completely in the following embodiments combined with the drawings.
[0040] EMBODIMENT
[0041] REFERENCE Figures 1 to 6, The single metal track capable of turning in the patent embodiment includes a track plate 1, a track column 101, a track universal connecting piece 2, an inner square and outer round thickening pad 102, a large flat head screw 103, a double-headed threaded pin shaft 201, a limiting shaft sleeve 203, and a cylindrical nut 202. The track plate 1 is a long rhombic metal thick plate with a central hole, and the ground-contacting side is welded with reinforcing ribs and anti-skid teeth. The track column 101 has a transverse through hole drilled at the longitudinal center point of the main body cylinder, an inner thread at the top end face, a square column milled at the top, and a welded cylinder at the bottom, and the upper end of the welded cylinder is a protruding limiting part. The track universal connecting piece 2 is made of a thick-walled metal square tube segment, which is divided into a large hole end and a small hole end, and the large hole end of the large hole is sleeved on the track column 101. The inner square and outer round thickening pad 102 is sleeved on the square column at the top end of the track column 101 and presses the track universal connecting piece 2. The large flat head screw 103 is screwed into the inner thread at the top end face of the track column 101 and presses the inner square and outer round thickening pad 102. The double-headed threaded pin shaft 201 passes through the middle hole of the track column 101 and also passes through the small hole of the small hole end of the adjacent track universal connecting piece 2. The limiting shaft sleeve 203 has two in each track assembly, which are respectively sleeved on the two sides remaining after the double-headed threaded pin shaft 201 passes through the middle hole of the track column 101. The cylindrical nut 202 has two in each track assembly, which are respectively screwed on the threads at both ends of the double-headed threaded pin shaft 201.
[0042] The track plate 1 is a long rhombic metal thick plate with a central hole, and is designed to be long rhombic to provide more space for the turning radius of the metal track when turning left and right. The inner diameter of the central hole is equal to the diameter of the welded cylinder of the track column 101.
[0043] When the track plate 1 is processed and manufactured, the two long diagonals are cut off and polished flat to prevent sharp corners from scratching personnel.
[0044] When the track plate 1 is processed and manufactured, the ground-contacting side is welded with reinforcing ribs and anti-skid teeth to increase the support strength and grip of the track plate 1 itself.
[0045] The track column 101 is a key component of the track that can turn, with a hole in the middle, an inner thread at the top end face, a square column milled at the top, and a welded cylinder at the bottom, and the upper end of the welded cylinder is a protruding limiting part.
[0046] When the track column 101 is processed and manufactured, the diameter of the main body cylinder of the track column 101 is equal to the diameter of the cylinder for making the square column, and according to the size of the part drawing, the metal round bar is first turned into the main body cylinder of the track column 101 and the overall cylinder for making the square column, then the protruding limiting part is turned, and then the welded cylinder is turned.
[0047] The track column 101 is processed into a square column at the top of the main cylindrical body and the overall cylindrical body of the four-square column, and the diagonal of the processed square column is equal to the diameter of the main cylindrical body. The cross section of the square column is matched with the square hole of the inner square and outer circular thickened gasket 102.
[0048] The height of the square column at the top of the track column 101 can only be less than or equal to the thickness of the inner square and outer circular thickened gasket 102 during processing. If the height is greater than the thickness of the inner square and outer circular thickened gasket 102, the track universal connecting piece 2 and the inner square and outer circular thickened gasket 102 will move up and down, and the parts will be easily damaged.
[0049] The middle hole of the track column 101 is a through hole drilled at the middle point of the main cylindrical body, and the inner diameter of the middle hole is equal to the diameter of the double-threaded pin shaft 201. The height of the main cylindrical body is equal to the outer diameter single-side length of the thick-walled metal right square tube for making the track universal connecting piece 2.
[0050] The height of the welded cylindrical body of the track column 101 is equal to the thickness of the track plate 1. The welded cylindrical body is inserted through the center hole of the track plate 1 and welded firmly. During welding, the direction of the middle hole of the track column 101 is consistent with the direction of the long diagonal of the track plate 1.
[0051] The inner thread of the end face of the top end of the track column 101 is matched with the large flat head screw 103.
[0052] The track universal connecting piece 2 is made of a thick-walled metal right square tube segment, which is divided into a large hole end and a small hole end. The large hole end is an up-and-down large through hole, and the small hole end is a left-and-right small through hole. The square tube walls without holes at both ends are removed to leave installation and movement space between adjacent two track universal connecting pieces 2 during and after assembly.
[0053] During processing, the two right angles at the top of the square tube wall of each hole with a large hole and a small hole are removed, and the top of each square tube wall with two right angles removed is polished into a total semicircle to prevent the track universal connecting piece 2 from being stuck by the right angle of the tube wall during the up-and-down rolling action and left-and-right turning action of the metal track.
[0054] During processing, the width of each square tube wall with a large hole and a small hole is less than the inner diameter single-side length of the metal right square tube, so that the large hole end of the track universal connecting piece 2 and the small hole end of the adjacent track universal connecting piece 2 are combined through corresponding parts after assembly, leaving a movement space to prevent jamming.
[0055] The original thick-walled metal square tube between the large hole end and the small hole end of the track universal joint 2 is left with a certain size, which becomes the connecting body between the large hole end and the small hole end, so as to increase the tensile strength of the track universal joint 2.
[0056] The large hole inner diameter of the track universal joint 2 is equal to the diameter of the main cylindrical body of the track column 101, and the small hole inner diameter of the small hole end is equal to the diameter of the double-threaded pin shaft 201, the large hole end is sleeved on the main cylindrical body of the processed track column 101, and the small hole end is combined with the double-threaded pin shaft 201 on the adjacent track column 101.
[0057] The outer circle diameter of the inner square outer circle thickened gasket 102 is larger than the diameter of the large hole of the track universal joint 2, and is sleeved on the square column at the top end of the track column 101, presses the track universal joint 2, and prevents the track universal joint 2 from being pulled out of the track column 101, and the gasket is designed to be inner square and outer circle, mainly to press the track universal joint 2 and prevent the tightened flat head screw 103 from being loosened when the metal track is turned left and right.
[0058] The flat head screw 103 is installed in the inner thread of the end face of the square column at the top end of the track column 101, presses the inner square outer circle thickened gasket 102 and is tightened, and the area of the nut is larger than the area of the square hole of the inner square outer circle thickened gasket 102.
[0059] The double-threaded pin shaft 201 is a key component for connecting the whole metal track, which is installed in the middle hole of the track column 101 and passes through the small hole of the small hole end of the adjacent track universal joint 2, and plays a role in connecting the adjacent track universal joint 2.
[0060] The length of the double-threaded pin shaft 201 is the sum of the length of the outer diameter of the thick-walled metal square tube for making the track universal joint 2 and the length of the two cylindrical nuts 202.
[0061] The inner diameter of the limiting shaft sleeve 203 is equal to the diameter of the double-threaded pin shaft 201, and there are two in each group of metal track assemblies, which are respectively sleeved on the two ends remaining after the double-threaded pin shaft 201 passes through the middle hole of the track column 101, to prevent the double-threaded pin shaft 201 from sliding left and right in the middle hole of the track column 101 after tightening the two cylindrical nuts 202 at both ends, which causes the track universal joint 2 to be not centered, and plays a role of limiting the track universal joint 2.
[0062] The length of the limiting shaft sleeve 203 is the difference between the length of the outer diameter of the thick-walled metal square tube for making the track universal joint 2 and the diameter of the main cylindrical body of the track column 101, divided by two, and the obtained value is the length of a single limiting shaft sleeve 203.
[0063] The cylindrical nut 202 has two in each group of metal track assembly, respectively screwed on the threads of the threaded stud 201 both ends.
[0064] The cylindrical nut 202 in the whole metal track assembly after the completion of the use, the track type special vehicle drive wheel teeth can be stuck and play track universal connector 2 both sides of the cylindrical nut 202, can make the whole metal track running.
[0065] The single use can also be turned to the metal track assembly, will be connected to form a loop, and according to the size of the decision needs to be assembled groups.
[0066] The single use can also be turned to the metal track of each component is made of metal, mainly in order to increase the metal track itself tensile strength and support force.
[0067] The above only is the preferred embodiment of the patent, the protection scope of the patent is not limited to the above examples, all technical solutions under the patent idea of the patent protection scope, based on the examples of the patent, for the person skilled in the art without making the creative changes obtained all other examples, belong to the protection scope of the patent.
[0068] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit and essential characteristics of the present application, no matter from which point of view, the above examples should be regarded as exemplary, not restrictive, the scope of the present application is defined by the appended claims, not the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, any reference signs in the claims should not be regarded as limiting the claims involved.
[0069] Although the present application is described in the specification according to the embodiments, not every embodiment contains only one independent technical solution, the description of the specification is only for the purpose of clear description, the person skilled in the art should regard the specification as a whole, the technical solutions in the examples can also be properly combined to form other embodiments which can be understood by those skilled in the art.
Claims
1. A metal track that can steer even when used alone, including track shoes, track posts, track universal joints, thickened inner square and outer round washers, large flat head screws, double-ended threaded pins, limit bushings, and cylindrical nuts; characterized by: The track shoe is a long rhombic metal thick plate with a center hole, and the ground-contacting surface is welded with reinforcing ribs and anti-skid teeth; the track column has a transverse through hole drilled at the longitudinal center point of the main cylindrical body, an inner thread on the top end face, a square column milled at the top end, and a welded cylindrical body at the bottom, and the upper end of the welded cylindrical body is a convex limiting part; the track universal connecting piece is made of a thick-walled metal square tube segment, and is divided into a large hole end and a small hole end, and the large hole of the large hole end is sleeved on the main cylindrical body of the track column; the inner square and outer circular thickened gasket is sleeved on the square column at the top end of the track column, and presses the track universal connecting piece; the large flat head screw is screwed into the inner thread on the top end face of the track column, and presses the inner square and outer circular thickened gasket; the double-headed threaded pin shaft passes through the middle hole of the track column and also passes through the small hole of the small hole end of the adjacent track universal connecting piece; the limiting shaft sleeve is two in each track assembly, and is respectively sleeved on the two sides after the double-headed threaded pin shaft passes through the middle hole of the track column; the cylindrical nut is two in each track assembly, and is respectively screwed on the threads at the two ends of the double-headed threaded pin shaft.
2. The single track, turnable metal track of claim 1, wherein The track shoe is a rhombic metal thick plate with a center hole, and the rhombic design is to leave more space for the turning radius when the metal track is turned left and right.
3. The single track, turnable metal track of claim 1, wherein The middle hole of the track column is a through hole drilled at the middle point of the main cylindrical body, and the inner diameter of the middle hole is equal to the diameter of the double-headed threaded pin shaft.
4. The single track, turnable metal track of claim 1, wherein The height of the welded cylindrical body of the track column is equal to the thickness of the track shoe, and the welded cylindrical body is passed through the center hole of the track shoe and welded firmly.
5. The single track, turnable metal track of claim 1, wherein The inner thread on the top end face of the track column is matched with the large flat head screw.
6. The single track, turnable metal track of claim 1, wherein The track universal connecting piece is made of a thick-walled metal square tube segment, and is divided into a large hole end and a small hole end, and the large hole end is drilled with a large through hole up and down, and the small hole end is drilled with a small through hole left and right, and the tube walls without holes at both ends are removed, so as to leave installation and movement space between the two adjacent track universal connecting pieces during and after assembly.
7. The single track, turnable metal track of claim 6, wherein The width of the tube wall drilled with a large hole and a small hole during processing is less than the inner diameter of the metal square tube, so as to leave a movement space after the large hole end of the track universal connecting piece is assembled with the small hole end of the adjacent track universal connecting piece, and to prevent jamming.
8. The single track, turnable metal track of claim 7, wherein The track universal connecting piece has a certain size of original thick-walled metal square tube between the large hole end and the small hole end, so as to become a connecting body between the large hole end and the small hole end, so as to increase the tensile strength of the track universal connecting piece.
9. The single track, turnable metal track of claim 1, wherein The inner diameter of the large hole of the track universal connecting piece is equal to the diameter of the main cylindrical body of the track column, and the inner diameter of the small hole of the small hole end is equal to the diameter of the double-headed threaded pin shaft, and the large hole of the large hole end is sleeved on the main cylindrical body of the processed track column, and the small hole of the small hole end is combined with the double-headed threaded pin shaft on the adjacent track column.
10. The single track, turnable metal track of claim 1, wherein The outer circle diameter of the inner square and outer circle thickened gasket is larger than the diameter of the large hole of the track universal connecting piece, and is sleeved on the four square column top end of the track column, presses the track universal connecting piece, prevents the track universal connecting piece from being separated from the track column, and the inner square and outer circle thickened gasket is designed to mainly press the track universal connecting piece and prevent the loosening of the tightened flat head screw during left and right steering of the metal track.
11. The single track, turnable metal track of claim 1, wherein The flat head screw is installed in the inner thread of the four square column top end surface of the track column, presses the inner square and outer circle thickened gasket and is tightened, and the area of the nut is larger than the area of the square hole of the inner square and outer circle thickened gasket.
12. The single track, turnable metal track of claim 1, wherein The double-threaded pin shaft is a key component for connecting the entire metal track, is installed in the middle hole of the track column, and passes through the small hole at the small hole end of the adjacent track universal connecting piece, and plays a role in connecting the adjacent track universal connecting piece.
13. The single track, turnable metal track of claim 12, wherein The length of the double-threaded pin shaft is the sum of the length of the outer diameter of the thick-walled metal square tube for making the track universal connecting piece and the length of the two cylindrical nuts.
14. The single track, turnable metal track of claim 1, wherein The inner diameter of the limiting shaft sleeve is equal to the diameter of the double-threaded pin shaft, and there are two in each group of metal track assemblies, which are respectively sleeved on the two ends of the double-threaded pin shaft after passing through the middle hole of the track column, preventing the double-threaded pin shaft from sliding left and right in the middle hole of the track column after tightening the two cylindrical nuts at both ends, causing the track universal connecting piece to be not centered, and playing a role of limiting the track universal connecting piece.
15. The single track, turnable metal track of claim 14, wherein The length of the limiting shaft sleeve is the difference between the length of the outer diameter of the thick-walled metal square tube for making the track universal connecting piece and the diameter of the main cylindrical column of the track column, divided by two, and the obtained value is the length of a single limiting shaft sleeve.
16. The single track, turnable metal track of claim 1, wherein The cylindrical nut has two in each group of metal track assemblies, which are respectively tightened on the threads at both ends of the double-threaded pin shaft.
17. The single track, turnable metal track of claim 1, wherein When the cylindrical nut is used after the assembly of the entire metal track is completed, the teeth of the drive wheel of the tracked special vehicle can catch and move the cylindrical nuts on both sides of the track universal connecting piece, so that the entire metal track can be operated.
18. The single track, turnable metal track of claim 1, wherein The single metal track that can also be steered is connected end to end after assembly to form a loop.
19. The single track, turnable metal track of claim 1, wherein Each component of the single metal track that can also be steered is made of metal, mainly to increase the tensile strength and support force of the metal track itself.