Telescopic star wheel with stepless diameter change and working method thereof

Abstract

The present invention relates to a telescopic star wheel with a stepless variable diameter and a working method thereof, wherein the telescopic star wheel with a stepless variable diameter comprises: a star wheel body, a plurality of telescopic mechanisms arranged around the star wheel body, and a wheel claw fixedly connected to the telescopic mechanism; the telescopic mechanism is engraved with a circumferential scale, and the telescopic mechanism is suitable for adjusting the extension length of each wheel claw and displaying it through the circumferential scale. The position of the wheel claw is changed by the telescopic mechanism, thereby realizing the stepless change of the diameter of the star wheel, and meeting the matching requirements of various loading mechanisms.

Description

Technical Field

[0001] The invention relates to the field of loading mechanisms, and in particular to a telescopic star wheel with a stepless variable diameter and a working method thereof. Background Art

[0002] Most of the shovels of roadheaders are equipped with star wheel drive devices to shovel materials. Therefore, the size of the star wheel drive device has an important influence on the size of the entire shovel. Due to the different widths of the tunnels, shovels of different widths are required. The diameters of the star wheels that match the shovel widths are also different. At present, in most cases, a star wheel with a diameter that matches the shovel width needs to be configured separately, which brings great inconvenience to the design, production and supporting services. At the same time, due to the serious wear of the star wheel claws, directly replacing the entire star wheel brings many inconveniences to the replacement of the star wheel.

[0003] At present, there are very few star wheels that change the star wheel diameter by replacing extension blocks of different lengths on the wheel claws. This method requires different length extension blocks, which wastes costs, is inconvenient to replace, and has a limited range of diameter change, which cannot be changed at will, and still cannot meet the matching needs of shovels of different widths.

[0004] How to solve the above problems is currently an urgent issue to be resolved. Summary of the invention

[0005] The purpose of the present invention is to provide a telescopic star wheel with stepless variable diameter and a working method thereof, so as to solve the technical problem that the diameter of the star wheel cannot be adjusted at will, thereby meeting the working needs of shovels with different widths.

[0006] In order to solve the above technical problems, the present invention provides a telescopic star wheel with a stepless variable diameter, comprising:

[0007] A star wheel body, a plurality of telescopic mechanisms arranged around the star wheel body, and a wheel claw fixedly connected to the telescopic mechanisms;

[0008] The telescopic mechanism is engraved with a circumferential scale, and the telescopic mechanism is suitable for adjusting the extension length of each wheel claw and displaying it through the circumferential scale.

[0009] Furthermore, the telescopic mechanism includes a rack and an adjusting member;

[0010] The star wheel body is provided with a rack cavity suitable for the rack to slide and an adjustment cavity suitable for the adjustment member to rotate;

[0011] The rack is meshed with the adjusting member;

[0012] The wheel claw is fixedly connected to the rack and is suitable for extending and retracting under the drive of the adjusting member.

[0013] Furthermore, the adjusting member includes: a gear, a connecting rod and a rotating part;

[0014] The gear is sleeved on the connecting rod and fixedly connected to the connecting rod;

[0015] The rotating part is sleeved on an end of the connecting rod away from the gear;

[0016] The regulating cavity has an opening;

[0017] The rotating portion is exposed from the opening.

[0018] Furthermore, the rotating part is engraved with a first circumferential scale among the circumferential scales.

[0019] Furthermore, the adjusting member also includes a screw;

[0020] The lower end of the screw is threaded;

[0021] The connecting rod is provided with an axial hole suitable for the screw to pass through;

[0022] The screw is suitable for passing through the shaft hole and then being fixedly connected with the star wheel body.

[0023] Further, the adjusting member includes at least two cover plates;

[0024] The at least two cover plates are in a circular shape after being engaged.

[0025] The plurality of cover plates are adapted to cover the opening of the regulating cavity after being engaged, and are adapted to prevent the regulating member from shaking in a radial direction.

[0026] Furthermore, the cover plate is engraved with a second circumferential scale among the circumferential scales;

[0027] The first circumferential scale and the second circumferential scale are suitable for displaying the extension distance of the wheel claws, thereby ensuring that the extension distances of multiple wheel claws are the same.

[0028] The present invention also provides a working method for a telescopic star wheel with a continuously variable diameter. The working method for a telescopic star wheel with a continuously variable diameter drives the wheel claw to extend and retract through a telescopic mechanism, thereby adjusting the diameter of the star wheel.

[0029] The beneficial effect of the present invention is that the present invention provides a telescopic star wheel with a stepless variable diameter and a working method thereof, wherein the telescopic star wheel with a stepless variable diameter comprises: a star wheel body, a plurality of telescopic mechanisms arranged around the star wheel body, and a wheel claw fixedly connected to the telescopic mechanism; the telescopic mechanism is engraved with a circumferential scale, and the telescopic mechanism is suitable for adjusting the extension length of each wheel claw and displaying it through the circumferential scale. The position of the wheel claw is changed by the telescopic mechanism, thereby realizing a stepless change in the diameter of the star wheel, and meeting the matching requirements of various loading mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0031] Figure 1 It is a structural schematic diagram of the telescopic star wheel with stepless diameter change provided by the present invention.

[0032] Figure 2 It is a schematic structural diagram of an adjusting member of a telescopic star wheel with a stepless variable diameter provided by the present invention.

[0033] Figure 3 It is a structural schematic diagram of a cover plate of a telescopic star wheel with a stepless variable diameter provided by the present invention.

[0034] Figure 4 It is a cross-sectional view of the mounting portion of the adjusting member of the telescopic star wheel with a stepless diameter change provided by the present invention.

[0035] In the figure: 110-star wheel body; 120-telescopic mechanism; 121-rack; 122-adjusting member; 1221-gear; 1222-connecting rod; 1223-rotating part; 1224-first circumferential scale; 123-screw; 124-cover plate; 125-second circumferential scale; 130-wheel claw. DETAILED DESCRIPTION

[0036] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0037] Example 1

[0038] like Figure 1As shown, this embodiment 1 provides a telescopic star wheel with a stepless variable diameter. The telescopic star wheel with a stepless variable diameter includes: a star wheel body 110, a plurality of telescopic mechanisms 120 arranged around the star wheel body 110, and a wheel claw 130 fixedly connected to the telescopic mechanism 120; the telescopic mechanism 120 is engraved with a circumferential scale, and the telescopic mechanism 120 is suitable for adjusting the extension length of each wheel claw 130 and displaying it through the circumferential scale. The position of the wheel claw 130 is changed by the telescopic mechanism 120, so as to realize the stepless change of the diameter of the star wheel, and meet the matching requirements of various loading mechanisms. Figure 1 The middle dotted line A represents the circle formed when the star wheel rotates, and the diameter of the circle is the diameter of the star wheel.

[0039] In this embodiment, the telescopic mechanism 120 includes a rack 121 and an adjusting member 122; the star wheel body 110 is provided with a gear 1221 cavity suitable for the rack 121 to slide and an adjusting cavity suitable for the adjusting member 122 to rotate; the rack 121 is meshed with the adjusting member 122; the wheel claw 130 is fixedly connected to the rack 121 and is suitable for telescopic operation under the drive of the adjusting member 122. After the wheel claw 130 is worn out after long-term use, the wheel claw 130 can be directly replaced to avoid replacing the entire star wheel.

[0040] See also Figure 2 and Figure 4 In this embodiment, the adjusting member 122 includes: a gear 1221, a connecting rod 1222 and a rotating part 1223; the gear 1221 is sleeved on the connecting rod 1222 and fixedly connected to the connecting rod 1222; the rotating part 1223 is sleeved on the end of the connecting rod 1222 away from the gear 1221; the adjusting cavity has an opening; the rotating part 1223 is exposed from the opening. The adjustment is performed through the gear 1221 and the rack 121, ensuring that the length of each adjustment is the same, and it is convenient and quick. The length of the rack 121 can be adjusted according to different usage ranges.

[0041] The rotating portion 1123 is engraved with a first circumferential scale 1124 among the circumferential scales.

[0042] In this embodiment, the adjusting member 122 further includes a screw 123; the lower end of the screw 123 is threaded; the connecting rod 1222 is provided with an axial hole suitable for the screw 123 to pass through; the screw 123 is suitable for passing through the axial hole and fixedly connected to the star wheel body 110. The adjusting member 122 is fixed by the screw 123. When the star wheel diameter needs to be adjusted, the screw 123 is loosened, the adjusting member 122 is rotated to adjust, and the screw 123 is tightened after the adjustment is completed.

[0043] See also Figure 3 In this embodiment, the adjusting member 122 includes at least two cover plates 124; the at least two cover plates 124 are in a circular ring shape after being engaged; the plurality of cover plates 124 are suitable for covering the opening of the adjusting cavity after being engaged, and are suitable for preventing the adjusting member 122 from shaking in the radial direction. On the one hand, the adjusting member 122 is prevented from shaking in the radial direction, causing the adjusting member 122 to loosen, and on the other hand, dust and the like are prevented from entering the rack cavity from the adjusting cavity, causing dust and the like to accumulate therein and affect the adjustment.

[0044] Specifically, there are two cover plates 124 , and the two cover plates 124 are in a circular shape after being engaged.

[0045] In this embodiment, the second circumferential scale 125 of the circumferential scale is engraved on the cover plate 124; the first circumferential scale 1224 and the second circumferential scale 125 are suitable for displaying the extension distance of the wheel claw 130, thereby ensuring that the extension distances of multiple wheel claws 130 are the same. The extension amount of the wheel claw 130 is displayed according to the scales on the cover plate 124 and the rotating part 1223, thereby ensuring that the extension amount of each wheel claw 130 is the same, which is convenient for use.

[0046] In this embodiment, the number of the telescopic mechanisms 120 is four.

[0047] The present invention also provides a working method of a telescopic star wheel with a stepless variable diameter. The working method of the telescopic star wheel with a stepless variable diameter drives the wheel claw 130 to extend and retract through the telescopic mechanism 120 to adjust the diameter of the star wheel, and the telescopic mechanism 120 is engraved with a circumferential scale, and the telescopic mechanism 120 is suitable for adjusting the extension length of each wheel claw 130 and displaying it through the circumferential scale. The position of the wheel claw 130 is changed through the telescopic mechanism 120, so as to realize the stepless change of the diameter of the star wheel, and meet the matching requirements of various loading mechanisms.

[0048] In summary, the present invention provides a telescopic star wheel with a stepless variable diameter and a working method thereof, wherein the telescopic star wheel with a stepless variable diameter comprises: a star wheel body, a plurality of telescopic mechanisms arranged around the star wheel body, and a wheel claw fixedly connected to the telescopic mechanism; the telescopic mechanism is engraved with a circumferential scale, and the telescopic mechanism is suitable for adjusting the extension length of each wheel claw and displaying it through the circumferential scale. The position of the wheel claw is changed by the telescopic mechanism, thereby realizing a stepless change in the diameter of the star wheel, and meeting the matching requirements of various loading mechanisms.

[0049] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A working method based on a telescopic star wheel with a stepless variable diameter, characterized in that: The telescopic star wheel with infinitely variable diameter includes: A star wheel body, a plurality of telescopic mechanisms arranged around the star wheel body, and a wheel claw fixedly connected to the telescopic mechanisms; The telescopic mechanism is engraved with a circumferential scale, and the telescopic mechanism is suitable for adjusting the extension length of each wheel claw and displaying it through the circumferential scale; The telescopic mechanism includes a rack and an adjusting member; The star wheel body is provided with a rack cavity suitable for the rack to slide and an adjustment cavity suitable for the adjustment member to rotate; The rack is meshed with the adjusting member; The wheel claw is fixedly connected to the rack and is suitable for being extended and retracted under the drive of the adjusting member; The adjusting member comprises: a gear, a connecting rod and a rotating part; The gear is sleeved on the connecting rod and fixedly connected to the connecting rod; The rotating part is sleeved on an end of the connecting rod away from the gear; The regulating cavity has an opening; The rotating portion is exposed from the opening; The rotating part is engraved with a first circumferential scale among the circumferential scales; The adjusting member further comprises a screw; The lower end of the screw is threaded; The connecting rod is provided with an axial hole suitable for the screw to pass through; The screw is suitable for passing through the shaft hole and then being fixedly connected to the star wheel body; The adjusting member comprises at least two cover plates; The at least two cover plates are in a circular shape after being engaged; The plurality of cover plates are adapted to cover the opening of the regulating cavity after being engaged, and are adapted to prevent the regulating member from shaking in the radial direction; The cover plate is engraved with a second circumferential scale among the circumferential scales; The first circumferential scale and the second circumferential scale are suitable for displaying the extension distance of the wheel claws, so as to ensure that the extension distances of the plurality of wheel claws are the same; The working method of the telescopic star wheel with stepless variable diameter is to drive the wheel claw to extend and retract through the telescopic mechanism so as to adjust the diameter of the star wheel, and the telescopic mechanism is engraved with a circumferential scale, and the telescopic mechanism is suitable for adjusting the extension length of each wheel claw and displaying it through the circumferential scale.

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