Walking mechanism and laneway stacker

Abstract

The utility model discloses a walking mechanism and a roadway stacking machine, and belongs to the technical field of roadway stacking machines. The walking mechanism comprises a supporting frame, a driving wheel assembly and a driven wheel assembly. The supporting frame is arranged on the ground rail; the driving wheel assembly comprises a driving wheel body and a driving part, one end of the driving wheel body is rotationally connected into the supporting frame around the Y axis, the driving wheel body comprises a driving wheel shaft extending along the Y axis, the other end of the driving wheel shaft extends out of the supporting frame along the Y axis to be connected with the driving part, and the driving part is used for driving the driving wheel shaft to rotate around the Y axis along the ground rail. The driving wheel shaft is made of a casting; the driven wheel assembly is rotationally connected into the supporting frame around the Y axis and comprises a driven wheel shaft, and the driven wheel shaft is made of a casting. The walking mechanism is simple and compact in structure, the applicability and durability of the driving wheel assembly and the driven wheel assembly can be improved, the maintenance time is shortened, and the running stability of the walking mechanism and the whole roadway stacking machine is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to roadway stacker technology field especially relates to walking mechanism and roadway stacker. BACKGROUND

[0002] At present, the filter stick of cigarette process is transported and conveyed, because roadway stacker has the characteristics of flexible and efficient, safe and reliable and wide application range, therefore, is widely used in filter stick's logistics technology. Among them, the operation stability of roadway stacker greatly influences the transfer efficiency of filter stick, therefore, need to ensure the normal steady operation of the whole roadway stacker.

[0003] However, because the main drive wheel assembly and driven wheel assembly of the walking mechanism of roadway stacker have high failure frequency in the long-time use process, the applicability and durability of the main drive wheel assembly and driven wheel assembly are low, which leads to long maintenance time of the main drive wheel assembly and driven wheel assembly, and seriously affects the operation stability of the walking mechanism and the whole roadway stacker.

[0004] In view of the above problems, a walking mechanism and roadway stacker are needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of walking mechanism and roadway stacker, its structure is simple and compact, can improve the applicability and durability of main drive wheel assembly and driven wheel assembly, shorten the maintenance time of main drive wheel assembly and driven wheel assembly, ensure the operation stability of walking mechanism and the whole roadway stacker.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Walking mechanism, along X-axis sliding is located on ground rail, the ground rail extends along X-axis, include:

[0008] Support frame, is located on the ground rail;

[0009] Main drive wheel assembly, including main drive wheel main body and driving part, one end of the main drive wheel main body is rotatably connected in the support frame around Y axis, the main drive wheel main body includes the main drive wheel shaft extending along Y axis, the other end of the main drive wheel shaft extends to the support frame outside along Y axis, to connect the driving part, the driving part is used to drive the main drive wheel shaft rotates around Y axis along the ground rail, and the material of the main drive wheel shaft is casting;

[0010] Driven wheel assembly, rotatably connected in the support frame around Y axis, the driven wheel assembly includes driven wheel shaft, and the material of the driven wheel shaft is casting.

[0011] As optional scheme, the main drive wheel main body further includes:

[0012] a driving wheel coaxially sleeved on the driving wheel shaft, the driving wheel being located at a central position in the support frame and being arranged parallel to the ground rail;

[0013] a first shaft sleeve, the first shaft sleeve being arranged on opposite sides of the driving wheel along the Y axis, the first shaft sleeve being interference-fitted on the driving wheel shaft;

[0014] a first bearing, an outer ring of the first bearing being fixedly arranged in the support frame, the driving wheel shaft being interference-inserted into an inner ring of the first bearing, one of the first bearings being arranged on each side of the first shaft sleeve away from the driving wheel, the first shaft sleeve being used to abut against the inner ring of the first bearing along the Y axis in an axial direction, and a first clamping spring being fixedly arranged in the support frame and abutting against the outer ring of the first bearing along the Y axis in an axial direction.

[0015] As an optional solution, the driving wheel is provided with a first through hole, the driving wheel shaft is arranged through the first through hole, an inner wall surface of the first through hole is concavely provided with a first key groove, an outer peripheral surface of the driving wheel shaft is concavely provided with a second key groove, and a first flat key is arranged in the first key groove and the second key groove.

[0016] As an optional solution, the driving wheel is further provided with a mounting clamping groove, the mounting clamping groove is in communication with the first through hole, and an end of the first shaft sleeve away from the first bearing is interference-fitted in the mounting clamping groove.

[0017] As an optional solution, the material of the driving wheel is cast material.

[0018] As an optional solution, the material of the first shaft sleeve is stainless steel material.

[0019] As an optional solution, the first bearing is a self-aligning roller bearing.

[0020] As an optional solution, the driving wheel body further comprises:

[0021] a first end cover, the first end cover being arranged on one side of one of the first bearings, an outer diameter of the first end cover being greater than a diameter of the inner ring of the first bearing and smaller than a diameter of the outer ring of the first bearing, and the driving wheel shaft being arranged out of the other first bearing along the Y axis;

[0022] a first fastener, the first fastener being threadedly connected to the first end cover and the driving wheel shaft along the Y axis.

[0023] As an optional solution, the driven wheel assembly further comprises:

[0024] a driven wheel, the driven wheel being coaxially sleeved on the driven wheel shaft, the driven wheel being located at a central position in the support frame and being arranged parallel to the ground rail;

[0025] Second shaft sleeve, the driven wheel is provided with the second shaft sleeve along the opposite sides of Y axis respectively, the second shaft sleeve is provided on the driven wheel shaft with interference;

[0026] Second bearing, the outer ring of the second bearing is fixedly arranged in the support frame, the driven wheel shaft is inserted in the inner ring of the second bearing with interference, each second shaft sleeve is provided with one second bearing away from the side of the driven wheel, the second shaft sleeve is used for abutting the inner ring of the second bearing along the Y axis, and the support frame is fixedly provided with a second snap spring, the second snap spring is used for abutting the outer ring of the second bearing along the Y axis;

[0027] Second end cover, the outer side of each second bearing is arranged in one second end cover, the outer diameter of the second end cover is greater than the diameter of the inner ring of the second bearing and less than the diameter of the outer ring of the second bearing;

[0028] Second fastener, the second end cover and the driving wheel shaft are connected along the Y axis with threads.

[0029] Road header, including walking mechanism, ground rail and guide mechanism as described above, four corners of the support frame are connected with the guide mechanism respectively, and the opposite two guide mechanisms along the Y axis rotate and abut against the ground rail.

[0030] The utility model discloses the beneficial effects are:

[0031] By the support frame is arranged on the ground rail, one end of the driving wheel main body is rotationally connected in the support frame around the Y axis, the other end of the driving wheel shaft of the driving wheel main body extends to the outside of the support frame along the Y axis, to connect the driving part, so that the driving part drives the driving wheel shaft to rotate around the Y axis along the ground rail, thereby driving the whole driving wheel main body to rotate, so as to drive the support frame to move linearly along the X axis through the rotation of the driving wheel main body, thereby the driving, positioning and bearing effects can be provided by the driving wheel assembly; at the same time, the driven wheel assembly is rotationally connected in the support frame around the Y axis, so that the whole driven wheel assembly can be driven to rotate around the Y axis through the linear movement of the support frame along the X axis, thereby the balance, positioning and bearing effects can be provided by the driven wheel assembly, so that the layout of the whole driving wheel assembly and the whole driven wheel assembly on the support frame is reasonable, the structure is simple and compact, and the occupied area is small; and the material of the driving wheel shaft and the material of the driven wheel shaft are both castings, the stiffness and stability of the driving wheel shaft and the driven wheel shaft are improved, so as to ensure that the driving wheel shaft and the driven wheel shaft can provide stable bearing function and stable operation, reduce the failure frequency of the driving wheel assembly and the driven wheel assembly, make the applicability and durability of the driving wheel assembly and the driven wheel assembly higher, shorten the maintenance time of the driving wheel assembly and the driven wheel assembly, and further ensure the operation stability of the walking mechanism and the whole road header.

[0032] By optimizing the material of the driving wheel, the first shaft sleeve and the first bearing, that is, the material of the driving wheel is cast material, the material of the first shaft sleeve is stainless steel material, and the first bearing adopts a self-aligning roller bearing capable of improving the load capacity of the rated dynamic load, the rated static load and the fatigue load, the applicability and durability of the entire driving wheel assembly can be improved, and the running stability of the walking mechanism and the entire roadway stacker can be better ensured.

[0033] By comprising the driving wheel shaft, the driving wheel, the first shaft sleeve, the first bearing, the first end cover and the first fastener, and the driven wheel assembly comprising the driven wheel shaft, the driven wheel, the second shaft sleeve, the second bearing, the second end cover and the second fastener, the matching mode between the wheel shafts can be optimized according to the structural process characteristics of the driving wheel assembly and the driven wheel assembly and the specific size of the ground rail and the support frame, so that the structural layout of the entire driving wheel assembly and the entire driven wheel assembly is simple, the design is compact, the size is appropriate, and the occupied area is small, thereby improving the size precision and assembly precision of the driving wheel assembly and the driven wheel assembly. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a structural schematic view of a roadway stacker provided in the utility model;

[0035] Figure 2 is a structural schematic view of a driving wheel assembly (excluding a driving part) provided in the utility model;

[0036] Figure 3 is an exploded structural schematic view of the driving wheel assembly (excluding the driving part) provided in the utility model;

[0037] Figure 4 is a structural schematic view of a driving wheel provided in the utility model;

[0038] Figure 5 is a structural schematic view of a driving wheel shaft provided in the utility model;

[0039] Figure 6 is a structural schematic view of a driven wheel assembly provided in the utility model;

[0040] Figure 7 is an exploded structural schematic view of the driven wheel assembly provided in the utility model;

[0041] Figure 8 is a structural schematic view of a driven wheel shaft provided in the utility model.

[0042] BRIEF DESCRIPTION OF DRAWINGS

[0043] 10-ground rail; 20-guiding mechanism;

[0044] 1-support frame;

[0045] 2-driving wheel assembly; 21-driving wheel body; 211-driving wheel shaft; 2111-second key groove; 2112-first threaded hole; 212-driving wheel; 2121-first through hole; 2122-first key groove; 2123-mounting clamping groove; 213-first shaft sleeve; 214-first bearing; 215-first end cover; 216-first fastener; 217-first flat key;

[0046] 3-following wheel assembly; 31-following wheel shaft; 311-third key groove; 312-second threaded hole; 32-following wheel; 33-second shaft sleeve; 34-second bearing; 35-second end cover; 36-second fastener; 37-second flat key. DETAILED DESCRIPTION

[0047] All features disclosed in this specification, and / or all steps of any methods or processes disclosed, may be combined in any combination, except combinations where at least some of such features and / or steps are mutually exclusive.

[0048] Any of the features disclosed in this specification, unless explicitly stated otherwise, can be replaced by alternative features serving the same, equivalent or similar purpose.

[0049] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the utility model will be further explained below by combining with the drawings and through specific implementation manners.

[0050] The embodiment proposes a walking mechanism and a roadway stacker comprising the walking mechanism, as shown in the figure, the roadway stacker further comprises a ground rail 10 and a guide mechanism 20, the ground rail 10 extends along the X axis, and the ground rail 10 is fixedly arranged, and the guide mechanism 20 is connected to four corners of the walking mechanism respectively, and the guide mechanism 20 opposite along the Y axis rotates and abuts against the ground rail 10, so that the guide effect can be provided through the guide mechanism 20, the movement deviation of the walking mechanism in the working process is avoided, the linear movement of the whole walking mechanism along the X axis on the ground rail 10 is ensured, and the normal steady operation of the whole roadway stacker is ensured. Figure 1 It is worth noting that the improvement in the embodiment focuses on the specific structural arrangement of the walking mechanism, therefore, the other structures and working principles of the roadway stacker are not described in detail here, and the common roadway stacker in the prior art can be referred to.

[0051] It is worth noting that the improvement in the embodiment focuses on the specific structural arrangement of the walking mechanism, therefore, the other structures and working principles of the roadway stacker are not described in detail here, and the common roadway stacker in the prior art can be referred to.

[0052] Specifically, as shown in Figures 1 to 8 The walking mechanism is arranged on the ground rail 10 along the X axis and includes the support frame 1, the driving wheel assembly 2, and the driven wheel assembly 3. The support frame 1 is arranged on the ground rail 10, and the guide mechanism 20 is fixedly connected to the support frame 1. The driving wheel assembly 2 includes a driving wheel body 21 and a driving member. One end of the driving wheel body 21 is rotatably connected to the support frame 1 along the Y axis. The driving wheel body 21 includes a driving wheel shaft 211 extending along the Y axis. The other end of the driving wheel shaft 211 extends out of the support frame 1 along the Y axis to connect the driving member. The driving member is used to drive the driving wheel shaft 211 to rotate along the Y axis on the ground rail 10. The material of the driving wheel shaft 211 is a casting. The driven wheel assembly 3 is rotatably connected to the support frame 1 along the Y axis. The driven wheel assembly 3 includes a driven wheel shaft 31. The material of the driven wheel shaft 31 is a casting. The driving member can be a driving motor.

[0053] The walking mechanism in the embodiment optimizes the layout and material setting of the driving wheel assembly 2 and the driven wheel assembly 3. The support frame 1 is arranged on the ground rail 10. One end of the driving wheel body 21 is rotatably connected to the support frame 1 along the Y axis. The other end of the driving wheel shaft 211 of the driving wheel body 21 extends out of the support frame 1 along the Y axis to connect the driving member. The driving member drives the driving wheel shaft 211 to rotate along the Y axis on the ground rail 10, thereby driving the entire driving wheel body 21 to rotate. The rotation of the driving wheel body 21 drives the support frame 1 to move linearly along the X axis, thereby providing the driving, positioning, and bearing functions of the driving wheel assembly 2. The driven wheel assembly 3 is rotatably connected to the support frame 1 along the Y axis. The linear movement of the support frame 1 along the X axis drives the entire driven wheel assembly 3 to rotate along the Y axis, thereby providing the balancing, positioning, and bearing functions of the driven wheel assembly 3. The layout of the driving wheel assembly 2 and the driven wheel assembly 3 on the support frame 1 is reasonable, the structure is simple and compact, and the occupied area is small. The materials of the driving wheel shaft 211 and the driven wheel shaft 31 are castings, which improves the rigidity and stability of the driving wheel shaft 211 and the driven wheel shaft 31, ensures the stable bearing function and stable operation of the driving wheel shaft 211 and the driven wheel shaft 31, reduces the failure frequency of the driving wheel assembly 2 and the driven wheel assembly 3, and improves the applicability and durability of the driving wheel assembly 2 and the driven wheel assembly 3. The maintenance time of the driving wheel assembly 2 and the driven wheel assembly 3 is shortened, thereby ensuring the stable operation of the walking mechanism and the entire laneway stacker.

[0054] Specifically, since the driving axle 211 and the driven axle 31 need to provide certain load-bearing function and running stability in the structural process, in the actual design of the processing technology of the driving axle 211 and the driven axle 31, 40Cr castings are specifically used, and the 40Cr castings are correspondingly heat treated to ensure that the required stiffness and stability of the driving axle 211 and the driven axle 31 are achieved, thereby ensuring the applicability and durability of the driving axle 211 and the driven axle 31.

[0055] Further, as shown in Figures 1 to 4 The driving wheel body 21 further comprises a driving wheel 212, a first shaft sleeve 213 and a first bearing 214; the driving wheel 212 is coaxially arranged on the driving axle 211, so that the driving wheel 212 rotates synchronously with the driving axle 211 around the Y axis, and the driving wheel 212 is located at the center position in the support frame 1 and is parallel to the ground rail 10; the first shaft sleeve 213 is arranged on the opposite sides of the driving wheel 212 along the Y axis, and the first shaft sleeve 213 is interference-fitted on the driving axle 211; the outer ring of the first bearing 214 is fixedly arranged in the support frame 1, and the driving axle 211 is interference-fitted with the inner ring of the first bearing 214, so as to ensure the tightness between the driving axle 211 and the inner ring of the first bearing 214; and one first bearing 214 is arranged on the side of each first shaft sleeve 213 away from the driving wheel 212, the first shaft sleeve 213 is used to abut against the inner ring of the first bearing 214 along the Y axis, and a first clamping spring is fixedly arranged in the support frame 1 and abuts against the outer ring of the first bearing 214 along the Y axis.

[0056] By arranging the first shaft sleeve 213 and the first clamping spring which cooperate with each other, the axial limiting and fixing of the first bearing 214 along the Y axis can be realized, so as to avoid the axial shaking or movement of the first bearing 214 on the driving axle 211, thereby ensuring the axial position stability of the first bearing 214 on the driving axle 211. Since the inner ring of the first bearing 214 is interference-fitted with the driving axle 211, the radial position stability of the first bearing 214 on the driving axle 211 can be ensured.

[0057] Further, as shown in Figures 3 to 5As shown in the drawings, the first through hole 2121 is arranged on the driving wheel 212, the driving shaft 211 is arranged in the first through hole 2121, and the first key groove 2122 is arranged on the inner wall surface of the first through hole 2121. The second key groove 2111 is arranged on the outer circumferential surface of the driving shaft 211. The first flat key 217 is arranged in the first key groove 2122 and the second key groove 2111. That is, a part of the first flat key 217 is arranged in the first key groove 2122, and the other part of the first flat key 217 is arranged in the second key groove 2111. Thus, the driving wheel 212 and the driving shaft 211 can be fixedly connected through the cooperation between the first key groove 2122, the second key groove 2111 and the first flat key 217, thereby ensuring the stability of the connection position between the driving wheel 212 and the driving shaft 211.

[0058] Specifically, as shown in Figure 2 and Figure 4 The mounting clamping groove 2123 is arranged on the driving wheel 212 and is in communication with the first through hole 2121. The first shaft sleeve 213 is arranged in the mounting clamping groove 2123 in an interference manner away from the first bearing 214, so as to provide a mounting space for the first shaft sleeve 213, thereby ensuring the stability of the mounting position between the first shaft sleeve 213 and the driving wheel 212.

[0059] Specifically, since the driving wheel 212 needs to provide certain bearing function and stable rotation in the structural process, the material of the driving wheel 212 is cast material in the design of the processing technology of the driving wheel 212. Specifically, ZG340-640 cast material can be used, and the ZG340-640 cast material is subjected to corresponding heat treatment, so as to achieve the required rigidity and stability of the driving wheel 212, thereby improving the applicability and durability of the driving wheel 212.

[0060] Further, since the first shaft sleeve 213 needs to provide stable supporting and limiting action to the first bearing 214 in the structural process, the material of the first shaft sleeve 213 is stainless steel material. Specifically, 316 stainless steel material can be used, so as to achieve the required hardness and wear resistance of the first shaft sleeve 213, thereby improving the applicability and durability of the first shaft sleeve 213.

[0061] Specifically, since the first bearing 214 needs to ensure certain bearing and durability, and the first bearing 214 is a standard part, that is, the specific model of the first bearing 214 is associated with the actual size, a self-aligning roller bearing capable of improving the bearing capacity of the rated dynamic load, the rated static load and the fatigue load is used, so as to achieve the required bearing capacity of the first bearing 214, thereby improving the service life of the first bearing 214.

[0062] Further, as shown in Figure 2 andFigure 3 As shown, the driving wheel body 21 further comprises a first end cover 215 and a first fastener 216; wherein the first end cover 215 is arranged on one side of one of the first bearings 214, the outer diameter of the first end cover 215 is greater than the diameter of the inner ring of the first bearing 214 and less than the diameter of the outer ring of the first bearing 214, that is, the outer peripheral edge of the first end cover 215 is arranged between the inner ring and the outer ring of the first bearing 214, and the driving wheel shaft 211 penetrates out of the other first bearing 214 along the Y-axis, so that the part of the driving wheel shaft 211 penetrating out of the first bearing 214 is connected with the driving member; the first fastener 216 is threadedly connected to the first end cover 215 and the driving wheel shaft 211 along the Y-axis, that is, one end of the driving wheel shaft 211 located in the support frame 1 is provided with a first threaded hole 2112, and the first end cover 215 is provided with a second through hole, the first fastener 216 penetrates through the second through hole and is threadedly connected in the first threaded hole 2112, so as to realize the axial locking of the driving wheel shaft 211 and the first bearing 214 along the Y-axis, so as to axially limit and fix the driving wheel shaft 211 along the Y-axis. Wherein, the first fastener 216 can be a bolt.

[0063] Further, as shown in Figure 1 , Figures 6 to 8 The driven wheel assembly 3 further comprises a driven wheel 32, a second shaft sleeve 33, a second bearing 34, a second end cover 35 and a second fastener 36; wherein the driven wheel 32 is coaxially sleeved on the driven wheel shaft 31, the driven wheel 32 is located at the center position in the support frame 1 and is arranged parallel to the ground rail 10; the driven wheel 32 is provided with the second shaft sleeve 33 on the opposite sides along the Y-axis, and the second shaft sleeve 33 is interference-fitted on the driven wheel shaft 31; the outer ring of the second bearing 34 is fixedly arranged in the support frame 1, and the driven wheel shaft 31 is interference-fitted with the inner ring of the second bearing 34, and each second shaft sleeve 33 is provided with one second bearing 34 away from the driven wheel 32, and the second shaft sleeve 33 is used for abutting against the inner ring of the second bearing 34 along the Y-axis; a second circlip is fixedly arranged in the support frame 1, and the second circlip is used for abutting against the outer ring of the second bearing 34 along the Y-axis; and the outer side of each second bearing 34 is arranged with one second end cover 35, and the outer diameter of the second end cover 35 is greater than the diameter of the inner ring of the second bearing 34 and less than the diameter of the outer ring of the second bearing 34; the second fastener 36 is threadedly connected to the second end cover 35 and the driving wheel shaft 211 along the Y-axis.

[0064] Specifically, by setting the second shaft sleeve 33 and the second circlip used in cooperation, the axial positioning and fixing of the second bearing 34 along the Y axis can be realized, avoiding the axial shaking or movement of the second bearing 34 along the Y axis on the driven wheel shaft 31, so as to ensure the axial position stability of the second bearing 34 on the driven wheel shaft 31. Wherein, since the inner ring of the second bearing 34 is interference-fitted with the driven wheel shaft 31, the radial position stability of the second bearing 34 on the driven wheel shaft 31 can be ensured.

[0065] Specifically, the key connection is also adopted between the driven wheel 32 and the driven wheel shaft 31, that is, as shown in Figures 6 to 8 the third key groove 311 is recessed on the outer circumferential surface of the driven wheel shaft 31, the fourth key groove is provided on the driven wheel 32, and the second flat key 37 is placed in the third key groove 311 and the fourth key groove in cooperation, that is, part of the second flat key 37 is placed in the third key groove 311, and the other part of the second flat key 37 is placed in the fourth key groove, so that the fixed connection between the driven wheel 32 and the driven wheel shaft 31 can be realized through the cooperation and connection between the third key groove 311, the fourth key groove and the second flat key 37, so as to ensure the connection position stability between the driven wheel 32 and the driven wheel shaft 31.

[0066] It is worth noting that the basic structure, connection layout and working principle of the driven wheel assembly 3 are basically the same as those of the above-mentioned driving wheel assembly 2, and the difference lies in that since the driven wheel shaft 31 does not need to be connected with the driving member, the second end cover 35 is threadedly fastened at both ends of the driven wheel shaft 31.

[0067] Specifically, as shown in Figures 6 to 8 the second threaded holes 312 are respectively provided at opposite ends of the driven wheel shaft 31, and the third through holes are provided on the second end cover 35, one second fastener 36 passes through one third through hole and is threadedly connected in one second threaded hole 312 aligned therewith, so as to axially lock the driven wheel shaft 31 and the second bearing 34 along the Y axis at opposite ends of the driven wheel shaft 31, so as to axially position and fix the driven wheel shaft 31 along the Y axis. Wherein, the second fastener 36 can be a bolt.

[0068] That is, the material of the driven wheel 32 is also cast material, which can specifically adopt ZG340-640 cast material; the driven wheel shaft 31 also specifically adopts 40cr cast material; the material of the second shaft sleeve 33 is also stainless steel material, which can specifically adopt 316 stainless steel material; the second bearing 34 also adopts a self-aligning roller bearing which can improve the load-carrying capacity of the rated dynamic load, the rated static load and the fatigue load.

[0069] Further, in order to better ensure the assembly accuracy of the above-mentioned driving wheel assembly 2 and the above-mentioned driven wheel assembly 3, the sizes of each component included in the driving wheel assembly 2 and the driven wheel assembly 3 are designed by adopting the base shaft system, that is, the driving wheel assembly 2 is produced and assembled by taking the driving wheel shaft 211 as the reference quantity, and the driven wheel assembly 3 is produced and assembled by taking the driven wheel shaft 31 as the reference quantity, so as to ensure that the entire driving wheel assembly 2 maintains the same reference and the entire driven wheel assembly 3 maintains the same reference; and the above-mentioned mutually matching surfaces, for example, the matching surface between the driving wheel 212 and the driving wheel shaft 211, the matching surface between the driven wheel 32 and the driven wheel shaft 31, the matching surface between the driving wheel shaft 211 and the inner ring of the first bearing 214, and the matching surface between the driven wheel shaft 31 and the inner ring of the second bearing 34, all adopt the interference fit mode, so as to reduce the gap amount between the matching surfaces by increasing the interference amount, thereby ensuring that the above-mentioned each matching surface can always maintain a relatively static state during movement, and further improving the running stability of the entire driving wheel assembly 2 and the entire driven wheel assembly 3.

[0070] By making the driving wheel assembly 2 include the above-mentioned driving wheel shaft 211, driving wheel 212, first shaft sleeve 213, first bearing 214, first end cover 215 and first fastener 216, and the driven wheel assembly 3 include the above-mentioned driven wheel shaft 31, driven wheel 32, second shaft sleeve 33, second bearing 34, second end cover 35 and second fastener 36, the matching mode between the wheel shafts can be optimized according to the structural process characteristics of the driving wheel assembly 2 and the driven wheel assembly 3, and the specific size of the ground rail 10 and the support frame 1, so as to make the structural layout of the entire driving wheel assembly 2 and the entire driven wheel assembly 3 simple, compact in design, and suitable in size, and occupy a smaller area, thereby improving the size accuracy and assembly accuracy of the driving wheel assembly 2 and the driven wheel assembly 3; and the material of the driving wheel 212, the driving wheel shaft 211, the first shaft sleeve 213, the first bearing 214, the driven wheel 32, the driven wheel shaft 31, the second shaft sleeve 33 and the second bearing 34 is optimized, thereby improving the applicability and durability of the entire driving wheel assembly 2 and the entire driven wheel assembly 3.

[0071] The specific installation steps of the driving wheel assembly 2 in the embodiment are as follows:

[0072] First, the entire support frame 1 is lifted upward, and the driving wheel 212 is placed at the installation position in the support frame 1; then, the first flat key 217 is fixedly placed in the second key groove 2111 of the driving wheel shaft 211, and one end of the driving wheel shaft 211 is inserted into the support frame 1 and is connected with the first flat key 217 and the first key groove 2122 of the driving wheel 212 through clamping cooperation, so as to fixedly connect the driving wheel 212 and the outer circumferential surface of the driving wheel shaft 211 through the first flat key 217.

[0073] Then, the first shaft sleeve 213 is respectively inserted into the installation clamping groove 2123 on the opposite sides of the driving wheel 212, and then the inner ring of the first bearing 214 is inserted into the driving wheel shaft 211, and the first bearing 214 is pushed until the first bearing 214 abuts with the first shaft sleeve 213, at this time, the outer ring of the first bearing 214 is fixedly arranged in the installation position in the support frame 1; and the outer ring of the first bearing 214 abuts with the first clamping spring in the support frame 1, so as to fix the first bearing 214 along the Y-axis.

[0074] Finally, the first fastener 216 is inserted into the second through hole on the first end cover 215 and is screwed into the first threaded hole 2112 of the driving wheel shaft 211, so as to axially lock the driving wheel shaft 211 and the first bearing 214 along the Y-axis, thereby axially fixing the driving wheel shaft 211.

[0075] The specific installation steps of the driven wheel assembly 3 in the embodiment are as follows:

[0076] The installation steps of the driven wheel assembly 3 are basically the same as the installation steps of the driving wheel assembly 2, and the difference is that when installing the second end cover 35, the second end cover 35 needs to be assembled on the opposite ends of the driven wheel shaft 31, that is, one of the second fasteners 36 is inserted into the third through hole on one of the second end covers 35 and is screwed into one of the second threaded holes 312 of the driven wheel shaft 31, and the other second fastener 36 is inserted into the third through hole on the other second end cover 35 and is screwed into the other second threaded hole 312 of the driven wheel shaft 31, so as to axially lock the driven wheel shaft 31 and the second bearing 34 on the opposite ends of the driven wheel shaft 31, thereby axially fixing the driven wheel shaft 31.

[0077] The walking mechanism in the embodiment optimizes the materials of the driving wheel 212, the driving wheel shaft 211, the first shaft sleeve 213, the first bearing 214, the driven wheel 32, the driven wheel shaft 31, the second shaft sleeve 33 and the second bearing 34, that is, the materials of the driving wheel 212 and the driven wheel 32 are ZG340-640 castings, the driving wheel shaft 211 and the driven wheel shaft 31 are 40cr castings, the materials of the first shaft sleeve 213 and the second shaft sleeve 33 are 316 stainless steel, and the first bearing 214 and the second bearing 34 are self-aligning roller bearings which can improve the load capacity of the rated dynamic load, the rated static load and the fatigue load, thereby improving the applicability and durability of the entire driving wheel assembly 2 and the entire driven wheel assembly 3.

[0078] The walking mechanism in the embodiment, by making the driving wheel assembly 2 including the above structure of the driving wheel shaft 211, the driving wheel 212, the first shaft sleeve 213, the first bearing 214, the first end cover 215 and the first fastener 216; the driven wheel assembly 3 includes the above structure of the driven wheel shaft 31, the driven wheel 32, the second shaft sleeve 33, the second bearing 34, the second end cover 35 and the second fastener 36; in order to be able to optimize the matching mode between the wheel shaft according to the structure process characteristics of the driving wheel assembly 2 and the driven wheel assembly 3 respectively, and the specific size of the ground rail 10 and the support frame 1, so that the structure layout of the whole driving wheel assembly 2 and the whole driven wheel assembly 3 is simple, the design is compact, the size is more appropriate, the occupied area is smaller, thereby the size precision and the assembly precision of the driving wheel assembly 2 and the driven wheel assembly 3 can be improved.

[0079] The structure content not described in detail in the embodiment belongs to the prior art known to those skilled in the art; in the embodiment, each technical scheme only focuses on the difference from other schemes, and each technical scheme can be combined arbitrarily as long as it does not conflict with each other, and the formed embodiment after combination is also within the scope disclosed by the utility model, considering the brevity of the text, the formed embodiment after combination will not be described separately.

[0080] The above content is only the preferred embodiment of the utility model, for those skilled in the art, according to the idea of the utility model, the specific implementation mode and application range will have the change, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A walking mechanism which is provided on a ground rail (10) so as to slide along an X axis, the ground rail (10) extending along the X axis, characterized in that, The utility model relates to a ground rail drive device, including: Support frame (1) is located on the ground rail (10); Driving wheel assembly (2) includes driving wheel main body (21) and driving part, one end of driving wheel main body (21) is rotatably connected in support frame (1) around Y axle, and driving wheel main body (21) includes driving wheel shaft (211) extending along Y axle, and the other end of driving wheel shaft (211) extends to support frame (1) outside along Y axle to connect driving part, and driving part is used to drive driving wheel shaft (211) rotates along ground rail (10) around Y axle, and the material of driving wheel shaft (211) is casting; Driven wheel assembly (3) is rotatably connected in support frame (1) around Y axle, and driven wheel assembly (3) includes driven wheel shaft (31), and the material of driven wheel shaft (31) is casting.

2. The walking mechanism of claim 1, wherein, Driving wheel main body (21) further includes: Driving wheel (212) is coaxially sleeved on driving wheel shaft (211), and driving wheel (212) is located at the central position in support frame (1) and is parallelly arranged on ground rail (10); First shaft sleeve (213) is arranged on the opposite sides of driving wheel (212) along Y axle respectively, and first shaft sleeve (213) is interference fitted on driving wheel shaft (211); First bearing (214) is fixedly arranged in support frame (1) with outer ring, and driving wheel shaft (211) is interference inserted in inner ring of first bearing (214), and one first bearing (214) is arranged on the side of each first shaft sleeve (213) away from driving wheel (212), and first shaft sleeve (213) is used to abut on the inner ring of first bearing (214) along Y axle, and first clamping spring is fixedly arranged in support frame (1) and is used to abut on the outer ring of first bearing (214) along Y axle.

3. The walking mechanism of claim 2, wherein, Driving wheel (212) is provided with first through hole (2121), and driving wheel shaft (211) is arranged in first through hole (2121), and the inner wall surface of first through hole (2121) is concavely provided with first key groove (2122), and the outer circumferential surface of driving wheel shaft (211) is concavely provided with second key groove (2111), and first flat key (217) is placed in first key groove (2122) and second key groove (2111) in cooperation.

4. The walking mechanism of claim 3, wherein, Driving wheel (212) is further provided with mounting clamping groove (2123), and mounting clamping groove (2123) is communicated with first through hole (2121), and one end of first shaft sleeve (213) away from first bearing (214) is interference fitted in mounting clamping groove (2123).

5. The walking mechanism of claim 2, wherein, The material of driving wheel (212) is cast material.

6. The walking mechanism of claim 2, wherein, The material of first shaft sleeve (213) is stainless steel material.

7. The walking mechanism of claim 2, wherein First bearing (214) is a self-aligning roller bearing.

8. The walking mechanism according to any one of claims 2 to 7, wherein Driving wheel main body (21) further includes: A first end cover (215) is attached to one side of one of the first bearings (214). The outer diameter of the first end cover (215) is greater than the inner diameter of the inner ring of the first bearing (214) and less than the outer diameter of the outer ring of the first bearing (214). The driving shaft (211) penetrates the other first bearing (214) along the Y axis. A first fastener (216) is threadedly connected to the first end cover (215) and the driving shaft (211) along the Y axis.

9. The walking mechanism according to any one of claims 1 to 7, wherein The driven wheel assembly (3) further comprises: A driven wheel (32) coaxially sleeved on the driven shaft (31). The driven wheel (32) is located at the center of the support frame (1) and is parallel to the ground rail (10). Second shaft sleeves (33) are arranged on the opposite sides of the driven wheel (32) along the Y axis. The second shaft sleeves (33) are interference-fitted on the driven shaft (31). Second bearings (34) are fixedly arranged in the support frame (1). The driven shaft (31) is interference-fitted in the inner ring of the second bearing (34). Each second bearing (34) is arranged on the side of the second shaft sleeve (33) away from the driven wheel (32). The second shaft sleeve (33) is used for abutting against the inner ring of the second bearing (34) along the Y axis. The support frame (1) is fixedly provided with a second clamp spring. The second clamp spring is used for abutting against the outer ring of the second bearing (34) along the Y axis. Second end covers (35) are attached to the outer sides of the second bearings (34). The outer diameter of the second end cover (35) is greater than the inner diameter of the inner ring of the second bearing (34) and less than the outer diameter of the outer ring of the second bearing (34). Second fasteners (36) are threadedly connected to the second end covers (35) and the driving shaft (211) along the Y axis.

10. A railcar characterized by, The walking mechanism, the ground rail (10), and the guide mechanism (20) are connected to the four corners of the support frame (1). The opposite guide mechanisms (20) are rotationally abutted against the ground rail (10) along the Y axis.

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