Driven wheel mechanism and loading device of heading machine

Abstract

The utility model relates to the technical field of heading machines, in particular to a driven wheel mechanism and a loading device of a heading machine. The driven wheel mechanism is applied to the loading device of the heading machine and comprises a driven wheel shaft, an outer shaft sleeve, two bearing assemblies and two wheel seats, the driven wheel shaft is sleeved with the two bearing assemblies and the two wheel seats, the two bearing assemblies are arranged on the driven wheel shaft in a spaced mode, the bearing assemblies are sleeved with the outer shaft sleeve, and part of the bearing assemblies are used for supporting the outer shaft sleeve; the outer shaft sleeve is used for making contact with a chain on a loading device. The two wheel seats are located on the sides, away from the outer shaft sleeve, of the two bearing assemblies respectively, the ends, facing the wheel seats, of the bearing assemblies are provided with at least one first matching part, the ends, facing the bearing assemblies, of the wheel seats are provided with at least one second matching part, and the first matching parts and the second matching parts are connected in an inserted mode in a one-to-one correspondence mode so that the bearing assemblies and the wheel seats can be connected. According to the driven wheel mechanism, the sealing effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel boring machines, and in particular to a driven wheel mechanism and a loading device of a tunnel boring machine. Background Art

[0002] The roadheader is a comprehensive tunnel excavation equipment that integrates cutting, loading, transportation and traveling, and can realize continuous cutting, loading and transportation operations. The roadheader includes a cutting part, a shovel part, a main body, a traveling part and a first conveyor. Among them, the shovel part is also called the loading part. The shovel part includes a main shovel, a side shovel, a shovel drive device and a driven wheel device. The driven wheel device is used to change the movement direction of the scraper chain, so as to smoothly transport the cut coal, ore and other broken materials to the subsequent conveying mechanism.

[0003] In the related art, the driven wheel device includes a driven wheel shaft, a driven wheel body, two sleeves and two glands, wherein the driven wheel body is arranged on the driven wheel shaft, the two sleeves are respectively sleeved on the two ends of the driven wheel shaft, and the two glands are respectively covered on the two sleeves.

[0004] However, the gland is directly mounted on the shaft sleeve, which results in poor sealing effect and easily leads to loss of lubricating oil in the driven wheel device, thereby causing damage to the device. Utility Model Content

[0005] The present application provides a driven wheel mechanism and a loading device for a tunnel boring machine, which improve the sealing effect of the driven wheel mechanism.

[0006] In the first aspect, the driven wheel mechanism provided in the present application is applied to the loading device of the tunnel boring machine, including a driven wheel shaft, an outer sleeve, two bearing assemblies and two wheel seats mounted on the driven wheel shaft, the two bearing assemblies are arranged on the driven wheel shaft at intervals, the outer sleeve is mounted on the bearing assembly, part of the bearing assembly is used to support the outer sleeve, and the outer sleeve is used to contact the chain on the loading device.

[0007] The two wheel seats are respectively located on the side of the two bearing assemblies away from the outer sleeve. At least one first matching portion is provided at the end of the bearing assembly facing the wheel seat, and at least one second matching portion is provided at the end of the wheel seat facing the bearing assembly. The first matching portion and the second matching portion are plugged in one-to-one to connect the bearing assembly and the wheel seat.

[0008] In a possible implementation, in the driven wheel mechanism provided by the present application, one of the first matching portion and the second matching portion is a slot, and the other is a protrusion matching the slot.

[0009] In a possible implementation, the driven wheel mechanism provided by the present application, the driven wheel shaft includes a first mounting section, a first connecting section, a supporting section, a second connecting section, and a second mounting section that are coaxially arranged in sequence.

[0010] The outer diameters of the first installation section and the second installation section are equal, the outer diameters of the first connecting section and the second connecting section are equal, the outer diameter of the first connecting section is larger than the outer diameter of the first installation section, and the outer diameter of the supporting section is larger than the outer diameter of the first connecting section.

[0011] The two bearing assemblies are respectively located on the first connecting section and the second connecting section, and the two wheel seats are respectively located on the first mounting section and the second mounting section.

[0012] In a possible implementation, the driven wheel mechanism provided in the present application, the bearing assembly includes a support bearing and a bearing seat, the two ends of the support section are respectively abutted against the two support bearings, and the side of the support bearing facing away from the support section is correspondingly abutted against the bearing seat.

[0013] The support bearing is used to support part of the outer sleeve, the bearing seat is used to be connected to the end of the outer sleeve, and the first matching portion is located on a side of the bearing seat away from the support bearing.

[0014] In a possible implementation, the driven wheel mechanism provided in the present application further includes a plurality of first connecting members, a plurality of first connecting holes are provided at opposite ends of the outer sleeve, a plurality of second connecting holes are provided on the bearing seat, and the first connecting members pass through the second connecting holes and are connected to the corresponding first connecting holes.

[0015] In a possible implementation, the driven wheel mechanism provided in the present application further includes a first seal, and the side of the bearing seat facing the outer sleeve has a first accommodating groove, the first accommodating groove is used to place the first seal, and the bearing seat and the outer sleeve are both in contact with the first seal.

[0016] In a possible implementation, the driven wheel mechanism provided in the present application further includes a skeleton oil seal and a second seal, and the bearing seat has a second accommodating groove on the side facing the driven wheel shaft, the second accommodating groove is used to place the skeleton oil seal and the second seal, the second seal is located on the side of the skeleton oil seal away from the support bearing, and the bearing seat and the skeleton oil seal are both in contact with the second seal.

[0017] In one possible implementation, the driven wheel mechanism provided in the present application further includes two second connecting members and a plurality of third connecting members, each of the two wheel seats has two oppositely arranged first mounting holes and a plurality of second mounting holes, each of the first mounting section and the second mounting section has a first through hole and a plurality of second through holes, and a second connecting member is used to pass through the first mounting hole and the first through hole and connect to the loading device.

[0018] A third connecting member passes through the second mounting hole and the second through hole so that the first mounting section and the second mounting section are respectively connected to the two wheel seats.

[0019] In a possible implementation, the driven wheel mechanism provided in the present application has a boss on the side of the wheel seat facing away from the bearing seat, and the boss is used to be plugged into the corresponding groove on the loading device to connect the wheel seat and the loading device.

[0020] In a second aspect, the loading device of a tunnel boring machine provided in the present application comprises a loading device body of the tunnel boring machine and any one of the driven wheel mechanisms provided in the first aspect above and arranged on the loading device of the tunnel boring machine.

[0021] The driven wheel mechanism and the loading device of the tunnel boring machine provided by the present application are applied to the loading device of the tunnel boring machine. The driven wheel mechanism is applied to the loading device of the tunnel boring machine. The driven wheel shaft, the outer sleeve, two bearing assemblies and two wheel seats are arranged on the driven wheel shaft. The two bearing assemblies are arranged on the driven wheel shaft at intervals. The outer sleeve is sleeved on the bearing assembly. Part of the bearing assembly provides support for the outer sleeve. The outer sleeve is used to contact with the chain on the loading device. The chain drives the outer sleeve to rotate through the friction between the chain and the outer sleeve, thereby changing the movement direction of the chain and realizing continuous transmission of the chain. The two wheel seats are respectively located on the side of the two bearing assemblies away from the outer sleeve. At least one first matching portion is provided at the end of the bearing assembly facing the wheel seat, and at least one second matching portion is provided at the end of the wheel seat facing the bearing assembly. The first matching portion and the second matching portion are plugged in one by one, which reduces the gap between the bearing assembly and the wheel seat, making the connection between the bearing assembly and the wheel seat tighter, thereby improving the sealing effect of the driven wheel mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the structure of a driven wheel mechanism provided in an embodiment of the present application;

[0024] Figure 2 for Figure 1 Schematic diagram of the internal structure;

[0025] Figure 3 for Figure 1 A schematic diagram of the structure of the driven wheel shaft;

[0026] Figure 4 A schematic structural diagram of a loading device for a tunnel boring machine provided in an embodiment of the present application.

[0027] Description of reference numerals:

[0028] 100-driven wheel mechanism;

[0029] 110-driven wheel shaft; 111-first mounting section; 1111-first through hole; 1112-second through hole; 112-first connecting section; 113-supporting section; 1131-retaining ring; 1132-annular groove; 114-second connecting section; 115-second mounting section;

[0030] 120-outer sleeve;

[0031] 130-bearing assembly; 131-support bearing; 132-bearing seat; 1321-first matching portion;

[0032] 140-wheel seat; 141-second matching portion; 142-second mounting hole; 143-boss;

[0033] 150-first connecting member;

[0034] 160 - first sealing member;

[0035] 170-skeleton oil seal;

[0036] 180 - second sealing member;

[0037] 190- third connecting piece;

[0038] 200-Loading device.

[0039] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0041] Secondly, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] Then, it should be noted that, in the description of the present application, the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 application.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0044] As shown in the background technology, in the related technology, the driven wheel device includes a driven wheel shaft, a driven wheel body, two sleeves and two glands. Among them, the driven wheel body is arranged on the driven wheel shaft, the two sleeves are respectively sleeved on the two ends of the driven wheel shaft, and then the two glands are respectively covered on the two sleeves. However, the gland is directly covered on the sleeve, and the sealing effect is poor, which easily leads to the loss of lubricating oil in the driven wheel device, and the rotating parts in the device lack lubrication and are easily worn and deformed, thereby causing damage to the device.

[0045] Based on this, the driven wheel mechanism and the loading device of the tunnel boring machine provided by the present application are applied to the loading device of the tunnel boring machine. The driven wheel mechanism is applied to the loading device of the tunnel boring machine. The driven wheel shaft, the outer sleeve, two bearing assemblies and two wheel seats are arranged on the driven wheel shaft. The two bearing assemblies are arranged on the driven wheel shaft at intervals. The outer sleeve is sleeved on the bearing assembly. Part of the bearing assembly provides support for the outer sleeve. The outer sleeve is used to contact the chain on the loading device. The chain drives the outer sleeve to rotate through the friction between the chain and the outer sleeve, thereby changing the movement direction of the chain and realizing continuous transmission of the chain. The two wheel seats are respectively located on the side of the two bearing assemblies away from the outer sleeve. At least one first matching portion is provided at the end of the bearing assembly facing the wheel seat, and at least one second matching portion is provided at the end of the wheel seat facing the bearing assembly. The first matching portion and the second matching portion are plugged in one by one, which reduces the gap between the bearing assembly and the wheel seat, making the connection between the bearing assembly and the wheel seat tighter, thereby improving the sealing effect of the driven wheel mechanism.

[0046] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0047] Reference Figure 1 , Figure 2 and Figure 4 As shown, the driven wheel mechanism 100 provided in the present application is applied to the loading device 200 of the tunnel boring machine, including a driven wheel shaft 110, an outer sleeve 120, two bearing assemblies 130 and two wheel seats 140 sleeved on the driven wheel shaft 110, the two bearing assemblies 130 are arranged on the driven wheel shaft 110 at intervals, the outer sleeve 120 is sleeved on the bearing assembly 130, part of the bearing assembly 130 is used to support the outer sleeve 120, and the outer sleeve 120 is used to contact the chain on the loading device 200.

[0048] The two wheel seats 140 are respectively located on the side of the two bearing assemblies 130 away from the outer sleeve 120. At least one first matching portion 1321 is provided at the end of the bearing assembly 130 facing the wheel seat 140, and at least one second matching portion 141 is provided at the end of the wheel seat 140 facing the bearing assembly 130. The first matching portion 1321 and the second matching portion 141 are plugged in one-to-one to connect the bearing assembly 130 and the wheel seat 140.

[0049] It can be understood that the outer sleeve 120 is in contact with the chain on the loading device 200, and the chain drives the outer sleeve 120 to rotate through the friction between the chain and the outer sleeve 120, thereby changing the movement direction of the chain and realizing continuous transmission of the chain. Therefore, the driven wheel mechanism 100 provided in the present application can be suitable for the loading device 200 with a medium single chain.

[0050] Furthermore, two bearing assemblies 130 are spaced apart on the driven wheel shaft 110 , and the two bearing assemblies 130 provide support for both ends of the outer sleeve 120 , so that the outer sleeve 120 can rotate freely relative to the driven wheel shaft 110 under the action of external force.

[0051] Exemplarily, the number of the first matching parts 1321 and the second matching parts 141 may be one or more, as long as the number of the first matching parts 1321 and the second matching parts 141 is the same, and the present application does not impose any limitation on this.

[0052] Specifically, by setting a first matching portion 1321 at the end of the bearing assembly 130 facing the wheel seat 140, and setting a second matching portion 141 at the end of the wheel seat 140 facing the bearing assembly 130, the first matching portion 1321 and the second matching portion 141 are plugged into each other in a one-to-one correspondence, thereby reducing the gap between the bearing assembly 130 and the wheel seat 140, making the connection between the bearing assembly 130 and the wheel seat 140 tighter, thereby improving the sealing effect of the driven wheel mechanism 100, preventing the loss of lubricating oil, and preventing external dust particles from entering the interior of the driven wheel mechanism 100.

[0053] It should be noted that the first matching portion 1321 and the second matching portion 141 can be made of metal with a smaller friction coefficient, so that the first matching portion 1321 and the second matching portion 141 can fit tightly to reduce the gap between the bearing assembly 130 and the wheel seat 140. At the same time, the first matching portion 1321 can rotate relative to the second matching portion 141, thereby ensuring that the bearing assembly 130 can rotate relative to the wheel seat 140.

[0054] In some embodiments, reference Figure 2 As shown, one of the first matching portion 1321 and the second matching portion 141 is a slot, and the other is a protrusion matching the slot.

[0055] Exemplarily, the first matching portion 1321 may be a slot, the second matching portion 141 may be a protrusion, and the second matching portion 141 is inserted into the first matching portion 1321 , thereby connecting the wheel seat 140 to the bearing assembly 130 .

[0056] Exemplarily, the second matching portion 141 may also be a slot, and the first matching portion 1321 may be a protrusion. The first matching portion 1321 is inserted into the second matching portion 141 , thereby connecting the bearing assembly 130 to the wheel seat 140 .

[0057] Exemplarily, the first matching portion 1321 is staggeredly provided with a plurality of slots and protrusions in sequence along the direction toward the driven wheel shaft 110 , and the second matching portion 141 is correspondingly provided with a plurality of protrusions and slots in sequence, so as to further improve the sealing effect of the driven wheel mechanism 100 .

[0058] In some embodiments, reference Figure 2 and Figure 3 As shown, the driven wheel shaft 110 includes a first installation section 111, a first connecting section 112, a supporting section 113, a second connecting section 114 and a second installation section 115 which are coaxially arranged in sequence.

[0059] The first mounting section 111 and the second mounting section 115 have the same outer diameters, the first connecting section 112 and the second connecting section 114 have the same outer diameters, the first connecting section 112 has a larger outer diameter than the first mounting section 111 , and the supporting section 113 has a larger outer diameter than the first connecting section 112 .

[0060] The two bearing assemblies 130 are respectively located on the first connecting section 112 and the second connecting section 114 , and the two wheel seats 140 are respectively located on the first mounting section 111 and the second mounting section 115 .

[0061] It can be understood that the outer diameter of the first connecting section 112 and the second connecting section 114 is larger than the outer diameter of the first mounting section 111 and the second mounting section 115, the outer diameter of the supporting section 113 is larger than the outer diameter of the first connecting section 112 and the second connecting section 114, the first connecting section 112 and the second connecting section 114 provide installation positions for the two bearing assemblies 130, and the first mounting section 111 and the second mounting section 115 provide installation positions for the two wheel seats 140, thereby facilitating installation.

[0062] In some embodiments, reference Figure 2 and Figure 3 As shown, the bearing assembly 130 includes a support bearing 131 and a bearing seat 132 . The two ends of the support section 113 are respectively abutted against the two support bearings 131 , and the side of the support bearing 131 away from the support section 113 is correspondingly abutted against the bearing seat 132 .

[0063] The support bearing 131 is used to support a portion of the outer sleeve 120 , the bearing seat 132 is used to be connected to the end of the outer sleeve 120 , and the first matching portion 1321 is located on a side of the bearing seat 132 away from the support bearing 131 .

[0064] It can be understood that the bearing seat 132 is connected to the end of the outer sleeve 120 so that the bearing seat 132 can rotate synchronously with the outer sleeve 120.

[0065] It should be noted that the support bearing 131 includes an inner ring and an outer ring, the inner ring is clamped on the driven wheel shaft 110 , and the outer ring can rotate together with the outer sleeve 120 and the bearing seat 132 .

[0066] Furthermore, an annular groove 1132 may be provided in the first connecting section 112 and the second connecting section 114 of the driven wheel shaft 110, and a retaining ring 1131 may be provided between the support bearing 131 and the bearing seat 132. The annular groove 1132 provides an installation position for the retaining ring 1131. Thus, one side of the support bearing 131 abuts against the support section 113, and the other side of the support bearing 131 abuts against the retaining ring 1131, so as to limit the axial position of the support bearing 131 and prevent the support bearing 131 from axially moving, that is, to prevent the support bearing 131 from moving along the axis of the shaft. Figure 2 Move in the +X or -X direction as indicated by the arrow.

[0067] In some embodiments, reference Figure 1 and Figure 2As shown, it also includes a plurality of first connecting members 150, a plurality of first connecting holes are provided at opposite ends of the outer sleeve 120, a plurality of second connecting holes are provided on the bearing seat 132, and the first connecting members 150 pass through the second connecting holes and are connected to the corresponding first connecting holes.

[0068] Exemplarily, the first connecting member 150 may be a screw, which is not limited in the present application.

[0069] It should be noted that the two bearing seats 132 are respectively connected to the opposite ends of the outer sleeve 120 through a plurality of first connecting members 150 , thereby achieving the fixation of the bearing seats 132 , and the bearing seats 132 can rotate together with the outer sleeve 120 .

[0070] In some embodiments, reference Figure 2 As shown, a first seal 160 is also included. The side of the bearing seat 132 facing the outer sleeve 120 has a first accommodating groove, and the first accommodating groove is used to place the first seal 160. The bearing seat 132 and the outer sleeve 120 are both in contact with the first seal 160.

[0071] Exemplarily, the first sealing member 160 may be a rubber sealing ring, and the present application does not limit the type of the first sealing member 160 .

[0072] Specifically, by providing a first receiving groove on the bearing seat 132, a placement space is provided for the first sealing member 160. The bearing seat 132 and the outer sleeve 120 are both in contact with the first sealing member 160, thereby reducing the gap between the bearing seat 132 and the outer sleeve 120, further improving the sealing effect, and preventing external impurities such as dust and particles from entering the inner cavity through the gap between the bearing seat 132 and the outer sleeve 120.

[0073] In some embodiments, reference Figure 2 As shown, it also includes a skeleton oil seal 170 and a second seal 180. The bearing seat 132 has a second accommodating groove on the side facing the driven wheel shaft 110. The second accommodating groove is used to place the skeleton oil seal 170 and the second seal 180. The second seal 180 is located on the side of the skeleton oil seal 170 away from the support bearing 131. The bearing seat 132 and the skeleton oil seal 170 are both in contact with the second seal 180.

[0074] It should be noted that a second receiving groove is provided on the bearing seat 132 to provide a placement space for the skeleton oil seal 170 and the second seal 180. The skeleton oil seal 170 has a good sealing effect and can play a bidirectional sealing role, which can effectively prevent the erosion of soil and sand and prevent the lubricating oil from leaking outward, thereby ensuring the stable operation of the driven wheel mechanism 100 and extending the service life.

[0075] Exemplarily, the second seal 180 may be a rubber seal ring, and the present application does not limit the type of the second seal 180. The bearing seat 132 and the skeleton oil seal 170 are both in contact with the second seal 180 to limit the skeleton oil seal 170 and improve the stability of the skeleton oil seal 170.

[0076] It should also be noted that an oil filling hole can be provided in the middle of the outer sleeve 120 for filling lubricating oil. When the lubricating medium in the driven wheel mechanism 100 is insufficient, the driven wheel mechanism 100 does not need to be disassembled, and the lubricating medium can be directly added through the oil filling hole to meet the lubrication needs of the support bearing 131 during the production process. The oil filling hole is provided in the middle of the outer sleeve 120, so that the lubricating medium flows from the middle to both sides, further improving the efficiency of adding the lubricating medium.

[0077] In some embodiments, reference Figure 2 and Figure 4 As shown, two second connecting members and a plurality of third connecting members 190 are also included, the two wheel seats 140 each have two oppositely arranged first mounting holes and a plurality of second mounting holes 142, the first mounting section 111 and the second mounting section 115 each have a first through hole 1111 and a plurality of second through holes 1112, and a second connecting member is used to pass through the first mounting hole and the first through hole 1111 and be connected to the loading device 200.

[0078] A third connecting member 190 passes through the second mounting hole 142 and the second through hole 1112 so that the first mounting section 111 and the second mounting section 115 are connected to the two wheel seats 140 respectively.

[0079] Exemplarily, the second connecting member may be a screw, which is not limited in the present application.

[0080] It can be understood that the second connecting member is used to pass through the first mounting hole and the first through hole 1111 and connect to the loading device 200, thereby fixing the driven wheel mechanism 100 on the loading device 200, facilitating installation and disassembly, and improving the assembly efficiency of the driven wheel mechanism 100 and the loading device 200.

[0081] Exemplarily, the third connecting member 190 may be an elastic cylindrical pin, which is not limited in the present application.

[0082] Specifically, the third connecting member 190 connects the first mounting section 111 and the second mounting section 115 to the two wheel seats 140 respectively, so that the two wheel seats 140 are fixed on the driven wheel shaft 110, thereby limiting the axial movement of the driven wheel shaft 110, that is, preventing the driven wheel shaft 110 from moving along the Figure 2 Move in the +X or -X direction as indicated by the arrow in the middle to reduce vibration and noise.

[0083] In some embodiments, reference Figure 1 , Figure 2 and Figure 4 As shown, the wheel seat 140 has a boss 143 on one side facing away from the bearing seat 132 , and the boss 143 is used to be plugged into a corresponding groove on the loading device 200 to connect the wheel seat 140 and the loading device 200 .

[0084] Exemplarily, the cross-section of the boss 143 may be U-shaped. As long as the boss 143 can be plugged into the groove on the loading device 200 accordingly, the present application does not impose any limitation on its shape.

[0085] Specifically, by providing a boss 143 on the wheel seat 140 and plugging the boss 143 into the corresponding groove on the loading device 200, the connection between the wheel seat 140 and the loading device 200 is achieved. At the same time, the contact surfaces of the wheel seat 140 and the loading device 200 are tightly fitted, thereby improving the stability of the driven wheel mechanism 100.

[0086] Reference Figure 4 As shown, the present application also provides a loading device 200 for a tunnel boring machine, comprising a loading device 200 body for a tunnel boring machine and a driven wheel mechanism 100 arranged on the loading device 200 for a tunnel boring machine.

[0087] The specific structure and working mode of the driven wheel mechanism 100 are described in detail in the above embodiments, and will not be described in detail here.

[0088] Those skilled in the art can understand that, the driven wheel mechanism 100 and the loading device 200 of the tunnel boring machine provided in the present application, the driven wheel mechanism 100 is applied to the loading device 200 of the tunnel boring machine, by setting a driven wheel shaft 110, an outer sleeve 120 and two bearing assemblies 130 and two wheel seats 140 sleeved on the driven wheel shaft 110, the two bearing assemblies 130 are arranged on the driven wheel shaft 110 at intervals, the outer sleeve 120 is sleeved on the bearing assembly 130, part of the bearing assembly 130 provides support for the outer sleeve 120, the outer sleeve 120 is used to contact with the chain on the loading device 200, the chain drives the outer sleeve 120 to rotate through the friction between the chain and the outer sleeve 120, thereby changing the movement direction of the chain and realizing continuous transmission of the chain. The two wheel seats 140 are respectively located on the side of the two bearing assemblies 130 away from the outer sleeve 120. At least one first matching portion 1321 is provided at the end of the bearing assembly 130 facing the wheel seat 140, and at least one second matching portion 141 is provided at the end of the wheel seat 140 facing the bearing assembly 130. The first matching portion 1321 is plugged into the second matching portion 141 in a one-to-one correspondence, which reduces the gap between the bearing assembly 130 and the wheel seat 140, makes the connection between the bearing assembly 130 and the wheel seat 140 tighter, and thus improves the sealing effect of the driven wheel mechanism 100.

[0089] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0090] It should be understood that the various numerical numbers involved in the embodiments of the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0091] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A driven wheel mechanism, applied to a loading device (200) of a roadheader, characterized in that: It comprises a driven wheel shaft (110), an outer shaft sleeve (120), two bearing assemblies (130) sleeved on the driven wheel shaft (110), and two wheel seats (140), wherein the two bearing assemblies (130) are arranged on the driven wheel shaft (110) at intervals, the outer shaft sleeve (120) is sleeved on the bearing assemblies (130), a part of the bearing assembly (130) is used to support the outer shaft sleeve (120), and the outer shaft sleeve (120) is used to contact the chain on the loading device (200); The two wheel seats (140) are respectively located on the side of the two bearing assemblies (130) away from the outer sleeve (120); at least one first matching portion (1321) is provided at the end of the bearing assembly (130) facing the wheel seat (140); at least one second matching portion (141) is provided at the end of the wheel seat (140) facing the bearing assembly (130); the first matching portion (1321) and the second matching portion (141) are plugged in one-to-one to connect the bearing assembly (130) and the wheel seat (140).

2. The driven wheel mechanism according to claim 1, characterized in that: One of the first matching portion (1321) and the second matching portion (141) is a slot, and the other is a protrusion matching the slot.

3. The driven wheel mechanism according to claim 1, characterized in that: The driven wheel shaft (110) comprises a first mounting section (111), a first connecting section (112), a supporting section (113), a second connecting section (114) and a second mounting section (115) which are coaxially arranged in sequence; The first mounting section (111) and the second mounting section (115) have the same outer diameter, the first connecting section (112) and the second connecting section (114) have the same outer diameter, the outer diameter of the first connecting section (112) is greater than the outer diameter of the first mounting section (111), and the outer diameter of the supporting section (113) is greater than the outer diameter of the first connecting section (112); The two bearing assemblies (130) are respectively located on the first connecting section (112) and the second connecting section (114), and the two wheel seats (140) are respectively located on the first mounting section (111) and the second mounting section (115).

4. The driven wheel mechanism according to claim 3, characterized in that: The bearing assembly (130) comprises a support bearing (131) and a bearing seat (132); the two ends of the support section (113) are respectively in contact with the two support bearings (131); and the side of the support bearing (131) facing away from the support section (113) is in contact with the bearing seat (132) accordingly; The support bearing (131) is used to support part of the outer sleeve (120), the bearing seat (132) is used to be connected to the end of the outer sleeve (120), and the first matching portion (1321) is located on a side of the bearing seat (132) away from the support bearing (131).

5. The driven wheel mechanism according to claim 4, characterized in that: It also includes a plurality of first connecting members (150), the outer sleeve (120) is provided with a plurality of first connecting holes at opposite ends, the bearing seat (132) is provided with a plurality of second connecting holes, and the first connecting members (150) pass through the second connecting holes and are connected to the corresponding first connecting holes.

6. The driven wheel mechanism according to claim 4, characterized in that: It also includes a first sealing member (160), and the bearing seat (132) has a first accommodating groove on the side facing the outer sleeve (120), and the first accommodating groove is used to place the first sealing member (160), and the bearing seat (132) and the outer sleeve (120) are both in contact with the first sealing member (160).

7. The driven wheel mechanism according to claim 4, characterized in that: It also includes a skeleton oil seal (170) and a second seal (180); the bearing seat (132) has a second accommodating groove on the side facing the driven wheel shaft (110); the second accommodating groove is used to place the skeleton oil seal (170) and the second seal (180); the second seal (180) is located on the side of the skeleton oil seal (170) facing away from the supporting bearing (131); the bearing seat (132) and the skeleton oil seal (170) are both in contact with the second seal (180).

8. The driven wheel mechanism according to any one of claims 3 to 7, characterized in that: It also includes two second connecting members and a plurality of third connecting members (190), the two wheel seats (140) each have two first mounting holes and a plurality of second mounting holes (142) that are arranged opposite to each other, the first mounting section (111) and the second mounting section (115) each have a first through hole (1111) and a plurality of second through holes (1112), and a second connecting member is used to pass through the first mounting hole and the first through hole (1111) and be connected to the loading device (200); A third connecting member (190) passes through the second mounting hole (142) and the second through hole (1112) so that the first mounting section (111) and the second mounting section (115) are respectively connected to the two wheel seats (140).

9. The driven wheel mechanism according to any one of claims 4 to 7, characterized in that: The wheel seat (140) has a boss (143) on the side facing away from the bearing seat (132), and the boss (143) is used to be plugged into a corresponding groove on the loading device (200) to connect the wheel seat (140) and the loading device (200).

10. A loading device for a roadheader, characterized in that: The invention comprises a loading device (200) body of a roadheader and a driven wheel mechanism (100) according to any one of claims 1 to 9 arranged on the loading device (200) of the roadheader.

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