A narrow-gauge frame structure for mining with adjustable track gauge

Abstract

The utility model discloses a narrow-gauge mining frame structure with adjustable track gauge, comprising: a wheel axle; two rail wheel assemblies, respectively sleeved on the left and right ends of the wheel axle; two adjustment assemblies, respectively arranged corresponding to the two rail wheel assemblies, the adjustment assembly comprising a plurality of adjustment sleeves, the adjustment sleeves being sleeved on the wheel axle and located on the left and / or right sides of the corresponding rail wheel assemblies; wherein a positioning structure is provided on the wheel axle for left and right positioning of the rail wheel assembly and the adjustment assembly, and the adjustment assembly is configured to adjust the position of the rail wheel assembly in the left and right directions by changing the orientation of the adjustment sleeve relative to the rail wheel assembly. The narrow-gauge mining frame structure with adjustable track gauge of the utility model embodiment can adjust the spacing between the two rail wheel assemblies, and has strong versatility.

Description

Technical Field

[0001] The utility model relates to mining machinery, in particular to a narrow-gauge frame structure for mining with adjustable track gauge. Background Art

[0002] Gauge refers to the fixed distance between the wheel flanges on both sides of the track. Different mines choose the appropriate gauge for use according to their needs and engineering conditions. At present, due to various reasons, the same mine has narrow tracks with gauges of 600mm, 762mm and 900mm. However, the gauge of existing narrow-gauge mining vehicles cannot be adjusted, that is, the distance between the two rail-wheel assemblies at both ends of the axle is fixed, and it cannot be used on rails of different gauges. It is only suitable for narrow tracks with a single fixed gauge. Therefore, there is an urgent need for a narrow-gauge mining vehicle frame structure with an adjustable gauge. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a narrow-gauge mining frame structure with adjustable track gauge, which can adjust the distance between two rail wheel assemblies and has strong versatility.

[0004] The narrow-gauge mining frame structure with adjustable track gauge according to the embodiment of the utility model comprises:

[0005] axle;

[0006] Two rail wheel assemblies are respectively sleeved on the left and right ends of the wheel axle;

[0007] Two adjustment assemblies are respectively arranged corresponding to the two rail wheel assemblies, and the adjustment assemblies include a plurality of adjustment sleeves, which are sleeved on the wheel axle and located on the left side and / or right side of the corresponding rail wheel assembly;

[0008] Wherein, a positioning structure is provided on the wheel axle for positioning the rail wheel assembly and the adjustment assembly left and right, and the adjustment assembly is configured to adjust the position of the rail wheel assembly in the left and right directions by changing the orientation of the adjustment sleeve relative to the rail wheel assembly.

[0009] The narrow-gauge mining vehicle frame structure with adjustable track gauge according to the embodiment of the utility model has at least the following beneficial effects:

[0010] The rail wheel assembly is sleeved on the wheel axle, and a plurality of adjustment sleeves are sleeved on the wheel axle, the adjustment sleeves are located on the left and / or right side of the corresponding rail wheel assembly, and the rail wheel assembly and the plurality of adjustment sleeves are positioned in the left and right directions by a positioning structure. In this way, the position of the rail wheel assembly in the left and right directions can be adjusted by changing the orientation of the adjustment sleeve relative to the rail wheel assembly, thereby adjusting the distance between the two rail wheel assemblies at the left and right ends of the wheel axle, so that the two rail wheel assemblies can have a variety of distances, which is suitable for the situation where narrow rails with a variety of track gauges exist in the same mine at the same time, and has strong versatility.

[0011] According to some embodiments of the utility model, the wheel axle includes a middle section and mounting sections arranged at the left and right ends of the middle section, the diameter of the mounting section is smaller than the diameter of the middle section, the positioning structure includes a positioning shoulder formed between the mounting section and the middle section and a locking piece detachably arranged at one end of the mounting section away from the positioning shoulder, the rail wheel assembly and the adjustment sleeve are both sleeved on the mounting section and located between the positioning shoulder and the locking piece.

[0012] According to some embodiments of the present invention, the locking member includes a locking nut, and an end of the installation section away from the positioning shoulder is provided with a threaded connection section, and the threaded connection section is provided with an external thread for threadedly installing the locking nut.

[0013] According to some embodiments of the utility model, the rail wheel assembly includes a rail wheel and a rolling bearing, the rail wheel is provided with a center hole penetrating left and right, the minimum diameter of the center hole is greater than or equal to the diameter of the mounting section, the rolling bearing is embedded in the center hole and sleeved on the mounting section.

[0014] According to some embodiments of the present utility model, the rolling bearing is clearance-fitted with the mounting section.

[0015] According to some embodiments of the utility model, the rail wheel includes a wheel body and an end cover, the wheel body is provided with a first inner hole extending left and right, the end cover is detachably provided at a side opening of the first inner hole, the end cover is provided with a second inner hole extending left and right, the first inner hole and the second inner hole together form the center hole, a step surface facing the end cover is formed in the first inner hole, the rolling bearing is embedded in the first inner hole, and the left and right ends of the outer ring of the rolling bearing respectively abut the step surface and the inner end surface of the end cover.

[0016] According to some embodiments of the utility model, the installation section is respectively provided with bushings on the left and right sides of the rolling bearing for abutting the inner ring of the rolling bearing, and a sealing structure is provided between the outer wall of the bushing and the hole wall of the center hole.

[0017] According to some embodiments of the utility model, an oil filling hole is provided on the rail wheel, which is used to inject lubricating grease into the center hole to lubricate the rolling bearing.

[0018] According to some embodiments of the present utility model, the adjustment sleeve is clearance-matched with the wheel axle.

[0019] According to some embodiments of the present utility model, the adjustment sleeve includes two detachably connected half sleeves, and the facing sides of the two half sleeves are provided with semicircular grooves.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the state of the embodiment of the utility model when the adjustment sleeve and the rail wheel assembly are in one of the relative position relationships;

[0024] Figure 3 It is a schematic diagram of the state of the adjustment sleeve and the rail wheel assembly in another relative position relationship according to the embodiment of the utility model;

[0025] Figure 4 It is a schematic diagram of the state of the adjustment sleeve and the rail wheel assembly in another relative position relationship of the embodiment of the utility model;

[0026] Figure 5 It is a structural schematic diagram of a wheel body of an embodiment of the utility model;

[0027] Figure 6 It is a structural schematic diagram of an adjustment sleeve according to an embodiment of the utility model.

[0028] Figure Number:

[0029] Axle 100, middle section 110, mounting section 120, positioning shoulder 130, locking member 140, threaded connection section 150;

[0030] Rail wheel assembly 200, rail wheel 210, wheel body 211, end cover 212, step surface 213, oil filling hole 214, rolling bearing 220, center hole 230;

[0031] Adjusting sleeve 300, half sleeve 310, profile groove 311;

[0032] Bushing 400. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] At present, due to various reasons, the same mine has narrow-gauge tracks of 600mm, 762mm and 900mm. However, the existing narrow-gauge mining vehicles cannot be adjusted in gauge and cannot be used on rails of different gauges. They are only suitable for narrow-gauge tracks with a single fixed gauge.

[0038] To this end, the utility model provides a narrow-gauge mining frame structure with adjustable track gauge, which can adjust the distance between the two rail wheel assemblies 200 to be suitable for the situation where narrow tracks with multiple track gauges exist in the same mine, and has strong versatility.

[0039] Reference Figures 1 to 4 As shown, a narrow-gauge mining vehicle frame structure with adjustable track gauge according to an embodiment of the utility model comprises: a wheel axle 100, a rail-wheel assembly 200, and an adjustment assembly.

[0040] There are two rail wheel assemblies 200, and the two rail wheel assemblies 200 are respectively sleeved on the left and right ends of the wheel axle 100; it should be noted that, in this embodiment, the axial direction of the wheel axle 100 is the left and right direction.

[0041] There are two adjustment components, which are respectively arranged corresponding to the two rail wheel components 200, that is, one adjustment component is arranged corresponding to one rail wheel component 200, and the adjustment component includes a plurality of adjustment sleeves 300, which are sleeved on the wheel axle 100 and are located on the left and / or right side of the corresponding rail wheel component 200, that is, when one adjustment sleeve 300 is arranged, the adjustment sleeve 300 can be located on the left or right side of the rail wheel component 200, and when multiple adjustment sleeves 300 are arranged, there are three situations, one is that all the adjustment sleeves 300 are located on the left side of the rail wheel component 200, one is that all the adjustment sleeves 300 are located on the right side of the rail wheel component 200, and one is Adjustment sleeves 300 are provided on the left and right sides of the rail wheel assembly 200; wherein, a positioning structure is provided on the wheel axle 100 for positioning the rail wheel assembly 200 and the adjustment assembly on the left and right sides, and the adjustment assembly is configured as follows: by changing the orientation of the adjustment sleeve 300 relative to the rail wheel assembly 200, the position of the rail wheel assembly 200 in the left and right directions can be adjusted. Obviously, when the rail wheel assembly 200 and the adjustment assembly are regarded as a whole, the distance between the leftmost end and the rightmost end thereof is fixed; in this embodiment, two adjustment sleeves 300 are provided, taking the adjustment assembly and the rail wheel assembly 200 located on the left side of the wheel axle 100 as an example, when both adjustment sleeves 300 are located on the left side of the rail wheel assembly 200, as shown in FIG. Figure 4 As shown, the distance between the rail-wheel assembly 200 at the left and right ends of the wheel axle 100 is a first distance. When the left and right sides of the wheel-rail assembly are both provided with adjustment sleeves 300, as shown in FIG. Figure 3 As shown in FIG. 1 , the distance between the rail wheel assembly 200 at the left and right ends of the wheel axle 100 is a second distance. When the adjustment sleeve 300 is located on the right side of the rail wheel assembly 200, as shown in FIG. Figure 2 As shown, the spacing between the rail wheel assemblies 200 at the left and right ends of the axle 100 is the third spacing, and the values ​​of the first spacing, the second spacing, and the third spacing increase sequentially, that is, by changing the orientation of the adjustment sleeve 300 relative to the rail wheel assembly 200, the position of the rail wheel assembly 200 in the left and right direction can be adjusted, thereby adjusting the spacing between the two rail wheel assemblies 200.

[0042] The track gauge adjustable narrow-gauge mining frame structure of the embodiment of the utility model has a rail wheel assembly 200 sleeved on the wheel axle 100, and a plurality of adjustment sleeves 300 sleeved on the wheel axle 100, the adjustment sleeves 300 are located on the left and / or right side of the corresponding rail wheel assembly 200, and the rail wheel assembly 200 and the plurality of adjustment sleeves 300 are positioned in the left and right directions by a positioning structure, so that the position of the rail wheel assembly 200 in the left and right directions can be adjusted by changing the orientation of the adjustment sleeve 300 relative to the rail wheel assembly 200, thereby adjusting the distance between the two rail wheel assemblies 200 at the left and right ends of the wheel axle 100, so that the two rail wheel assemblies 200 can have a variety of distances, so as to be suitable for the situation where narrow rails with multiple track gauges exist in the same mine at the same time, and the versatility is strong.

[0043] In some embodiments of the present invention, referring to Figure 1 and Figure 2 As shown, the wheel axle 100 includes a middle section 110 and mounting sections 120 disposed at the left and right ends of the middle section 110. The diameter of the mounting section 120 is smaller than the diameter of the middle section 110. The positioning structure includes a positioning shoulder 130 formed between the mounting section 120 and the middle section 110 and a locking member 140 detachably disposed at one end of the mounting section 120 away from the positioning shoulder 130. The rail wheel assembly 200 and the adjustment sleeve 300 are both sleeved on the mounting section 120 and located between the positioning shoulder 130 and the locking member 140. The locking member 140 cooperates with the positioning shoulder 130 to position the rail wheel assembly 200 and the adjustment sleeve 300 to the left and right. The structure is simple and the adjustment assembly is convenient to disassemble and assemble. When disassembling the rail wheel assembly 200, first remove the locking piece 140, and then pull out the adjustment assembly and the rail wheel assembly 200 along the axial direction of the installation section 120; when it is necessary to adjust the spacing between the two rail wheel assemblies 200, first remove the locking piece 140, then remove the adjustment sleeve 300 and the rail wheel assembly 200, change the relative position of the adjustment sleeve 300 and the rail wheel assembly 200 (for example, adjust the adjustment sleeve 300 from the left side of the rail wheel assembly 200 to the right side), then reinstall the adjustment sleeve 300 and the rail wheel assembly 200 on the installation section 120 and use the locking piece 140 to lock and position them, so as to achieve the position adjustment of the rail wheel assembly 200.

[0044] In some embodiments of the present invention, referring to Figure 1 and Figure 2 As shown, the locking member 140 includes a locking nut, and a threaded connection section 150 is provided at one end of the mounting section 120 away from the positioning shoulder 130. The threaded connection section 150 is provided with an external thread for threadedly mounting the locking nut. The structure is simple and the disassembly and assembly operation is convenient. Obviously, the diameter of the threaded connection section 150 needs to meet the condition that the adjustment sleeve 300 and the rail wheel assembly 200 can be slid out along the axial direction of the mounting section 120.

[0045] In some embodiments of the present invention, referring to Figure 2 As shown, the rail wheel assembly 200 includes a rail wheel 210 and a rolling bearing 220. The rail wheel 210 is provided with a center hole 230 that runs through the left and right sides. The minimum diameter of the center hole 230 is greater than or equal to the diameter of the mounting section 120. The rolling bearing 220 is embedded in the center hole 230 and sleeved on the mounting section 120. The axial relative position of the rolling bearing 220 and the rail wheel 210 is fixed. The rail wheel assembly 200 is sleeved on the mounting section 120 through the rolling bearing 220. Since the minimum diameter of the center hole 230 is greater than or equal to the diameter of the mounting section 120, it can be ensured that the rail wheel assembly 200 can adjust the position along the axial direction of the mounting section 120 and that the rail wheel assembly 200 can be removed from the mounting section 120. In some specific embodiments, in order to facilitate disassembly and assembly, the rolling bearing 220 and the mounting section 120 are clearance-fitted.

[0046] In some embodiments of the present invention, referring to Figure 2 and Figure 5 As shown, the rail wheel 210 includes a wheel body 211 and an end cover 212. The wheel body 211 is provided with a first inner hole running through the left and right sides. The end cover 212 is detachably arranged at a side opening of the first inner hole. The end cover 212 is provided with a second inner hole running through the left and right sides. The first inner hole and the second inner hole together form a center hole 230. The first inner hole is a stepped hole. A step surface 213 facing the end cover 212 is formed in the first inner hole. The rolling bearing 220 is embedded in the first inner hole. The outer ring of the rolling bearing 220 is interference fit with the first inner hole. The left and right ends of the outer ring of the rolling bearing 220 respectively abut the step surface 213 and the inner end surface of the end cover 212 to axially position the rolling bearing 220 and the rail wheel 210 relatively. When the rolling bearing 220 needs to be disassembled, it is only necessary to remove the end cover 212. In some specific embodiments, the end cover 212 is fixed to the wheel body 211 by screws.

[0047] In some embodiments of the present invention, referring to Figure 2 As shown, the installation section 120 is respectively provided with bushings 400 on the left and right sides of the rolling bearing 220 for abutting the inner ring of the rolling bearing 220, and a sealing structure is provided between the outer wall of the bushing 400 and the hole wall of the center hole 230, so as to prevent dust from entering the center hole 230 and affecting the normal operation of the rolling bearing 220. Specifically, the sealing structure is provided as a sealing ring, and the hole wall of the center hole 230 is provided with an annular groove for installing the sealing ring. It can be understood that the bushing 400 is used to abut against the positioning shoulder 130 or the locking member 140 or the adjusting sleeve 300. In a further embodiment, referring to Figure 5 and Figure 2 As shown, the rail wheel 210 is provided with an oil filling hole 214 for injecting lubricating grease into the center hole 230 to lubricate the rolling bearing 220 .

[0048] In some embodiments of the present invention, the adjustment sleeve 300 and the wheel axle 100 are clearance-matched, so that the adjustment sleeve 300 can be easily assembled and disassembled.

[0049] In some embodiments of the present invention, referring to Figure 2 and Figure 6 As shown, the adjustment sleeve 300 includes two detachably connected half sleeves 310, and the facing sides of the two half sleeves 310 are provided with semicircular grooves 311. When the two half sleeves 310 are assembled together, the two semicircular grooves 311 form a circular hole adapted to the wheel axle 100. With the above arrangement, the adjustment sleeve 300 can be removed from the wheel axle 100 by disassembling the connection structure between the two half sleeves 310, providing another disassembly and assembly form besides sliding the adjustment sleeve 300 out along the axial direction of the wheel axle 100, which is more flexible and practical.

[0050] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A narrow-gauge mining frame structure with adjustable track gauge, characterized in that: include: Axle (100); Two rail wheel assemblies (200) are respectively sleeved on the left and right ends of the wheel axle (100); Two adjustment assemblies are respectively arranged corresponding to the two rail wheel assemblies (200), the adjustment assemblies comprising a plurality of adjustment sleeves (300), the adjustment sleeves (300) being sleeved on the wheel axle (100) and located on the left side and / or the right side of the corresponding rail wheel assembly (200); The wheel axle (100) is provided with a positioning structure for left-right positioning of the rail wheel assembly (200) and the adjustment assembly, and the adjustment assembly is configured to adjust the position of the rail wheel assembly (200) in the left-right direction by changing the orientation of the adjustment sleeve (300) relative to the rail wheel assembly (200).

2. The narrow-gauge mining frame structure with adjustable track gauge according to claim 1 is characterized in that: The wheel axle (100) comprises a middle section (110) and mounting sections (120) arranged at left and right ends of the middle section (110); the diameter of the mounting section (120) is smaller than the diameter of the middle section (110); the positioning structure comprises a positioning shoulder (130) formed between the mounting section (120) and the middle section (110) and a locking member (140) detachably arranged at one end of the mounting section (120) away from the positioning shoulder (130); the rail wheel assembly (200) and the adjustment sleeve (300) are both sleeved on the mounting section (120) and located between the positioning shoulder (130) and the locking member (140).

3. The narrow-gauge mining frame structure with adjustable track gauge according to claim 2 is characterized in that: The locking member (140) comprises a locking nut, and an end of the mounting section (120) away from the positioning shoulder (130) is provided with a threaded connection section (150), and the threaded connection section (150) is provided with an external thread for threadedly mounting the locking nut.

4. The narrow-gauge mining frame structure with adjustable track gauge according to claim 2 is characterized in that: The rail wheel assembly (200) comprises a rail wheel (210) and a rolling bearing (220); the rail wheel (210) is provided with a center hole (230) penetrating left and right; the minimum diameter of the center hole (230) is greater than or equal to the diameter of the mounting section (120); the rolling bearing (220) is embedded in the center hole (230) and sleeved on the mounting section (120).

5. The mining narrow-gauge vehicle frame structure with adjustable track gauge according to claim 4 is characterized in that: The rolling bearing (220) is clearance-fitted with the mounting section (120).

6. The mining narrow-gauge vehicle frame structure with adjustable track gauge according to claim 4 is characterized in that: The rail wheel (210) comprises a wheel body (211) and an end cover (212), wherein the wheel body (211) is provided with a first inner hole penetrating left and right, the end cover (212) is detachably arranged at a side opening of the first inner hole, the end cover (212) is provided with a second inner hole penetrating left and right, the first inner hole and the second inner hole together form the center hole (230), a step surface (213) facing the end cover (212) is formed in the first inner hole, the rolling bearing (220) is embedded in the first inner hole, and the left and right ends of the outer ring of the rolling bearing (220) respectively abut against the step surface (213) and the inner end surface of the end cover (212).

7. The narrow-gauge mining frame structure with adjustable track gauge according to claim 4 is characterized in that: The mounting section (120) is respectively provided with bushings (400) on the left and right sides of the rolling bearing (220) for abutting against the inner ring of the rolling bearing (220), and a sealing structure is provided between the outer wall of the bushing (400) and the hole wall of the center hole (230).

8. The mining narrow-gauge vehicle frame structure with adjustable track gauge according to claim 7 is characterized in that: The rail wheel (210) is provided with an oil injection hole (214) for injecting lubricating grease into the central hole (230) to lubricate the rolling bearing (220).

9. The narrow-gauge mining frame structure with adjustable track gauge according to claim 1 is characterized in that: The adjustment sleeve (300) is clearance-matched with the wheel axle (100).

10. The narrow-gauge mining frame structure with adjustable track gauge according to claim 1, characterized in that: The adjustment sleeve (300) comprises two detachably connected half sleeves (310), and the facing sides of the two half sleeves (310) are both provided with a semicircular groove (311).

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