Heading machine trailer, heading machine and walking wheel set

Abstract

The utility model belongs to the technical field of tunneling equipment of tunnels or footrills, and particularly provides a tunneling machine trailer, a tunneling machine and a walking wheel set. The heading machine trailer adopts a traveling wheel set composed of traveling wheels with rims and traveling wheels without rims, and in the traveling wheel set, the traveling wheels without rims are located at the positions, away from the center of the trailer, in the traveling wheel set during installation. The heading machine comprises the heading machine trailer. The traveling wheel set can be used for the trailer of the heading machine. Compared with the prior art that all the walking wheels are arranged to be walking wheels with rims, the distance between the walking wheels with the rims on the same side can be reduced, so that the turning radius of the trailer is reduced, and the trailer is suitable for construction of tunnels with small turning radius.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel or adit excavation equipment, in particular to a tunnel excavator trailer and a tunnel excavator and a traveling wheel set. Background Art

[0002] The full-face tunnel boring machine (hereinafter referred to as the tunnel boring machine) includes a main machine and a rear supporting system. The main machine is used to excavate the tunnel forward, and the rear supporting system is mainly used to provide working support conditions for the main machine, including a connecting bridge, a rear supporting trailer (hereinafter referred to as the trailer) and auxiliary equipment, among which the auxiliary equipment includes a hydraulic pump station, an electric control cabinet, a concrete tank, an auxiliary drilling rig, etc., which are mainly carried on the trailer. The trailer includes outriggers, and the outriggers include front outriggers and rear outriggers arranged in front and back. The front and rear outriggers are respectively arranged on the left and right sides of the trailer, and the outriggers are equipped with a traveling mechanism that moves along the bottom of the tunnel. During the excavation process, as the main machine changes steps and excavates forward, the trailer can also move forward with the main machine.

[0003] There are generally three types of traveling structures equipped on trailers. One is the traveling wheels (track steel wheels) used for traveling along the track. During construction, as the main machine moves forward, the track needs to be continuously extended and laid; one is the rubber wheels or steel wheels that travel directly along the tunnel wall. The rubber wheels or steel wheels are generally arranged in pairs and in an "eight" shape; one is the skid that slides directly along the tunnel wall (on the left and right sides of the bottom); among them, the traveling wheels have the advantages of strong load-bearing capacity and good stability, and are suitable for a variety of geological conditions and working conditions.

[0004] Due to the heavy weight of some supporting equipment and the bearing capacity of the track, when arranging the running wheels on the legs, two running wheels arranged front and back are generally configured on each leg, that is, in the form of a wheel set, to increase the fulcrum of the track on the trailer and avoid the track being deformed due to excessive load on a single fulcrum. In addition, in order to prevent the trailer from accidentally derailing when traveling, the running wheels are generally steel wheels with flanges, and the flanges can cooperate with the track limit stops in the horizontal direction.

[0005] The turning radius of the tunnels designed for some engineering projects is small, which requires the tunnel boring machine to have strong flexibility to achieve small turning excavation. Unlike passenger trains such as high-speed trains and subways, trailers move very slowly. Considering the cost of trailers, trailers are generally not equipped with complex bogies. When turning is required, the running wheels of the trailer can slide left and right along the track to change the posture of the trailer, thereby achieving turning. However, since the running wheels have rims, when turning, the rims of the running wheels in the front and rear legs cooperate with the track limit stops, which may cause the trailer to be unable to turn smoothly, making it difficult to adapt to small turning excavation.

[0006] Analysis of the steering process shows that the main reason why the trailer cannot make a small turn is that the distance between the front and rear outriggers with wheel rims is too large. For technicians in this field, it is not difficult to think of shortening the distance between the front outriggers and the rear outriggers. However, shortening the distance between the front outriggers and the rear outriggers will reduce the supporting performance of the trailer. If heavy supporting equipment is placed at the front or rear end of the trailer, the rear or front end of the trailer may be tilted up, which may easily damage the equipment or injure the staff. Utility Model Content

[0007] The purpose of the utility model is to provide a roadheader trailer to solve the technical problem of poor turning passability of the trailer in the prior art without affecting the supporting performance of the trailer. The purpose of the utility model is also to provide a roadheader to solve the same technical problem. The purpose of the utility model is also to provide a running wheel set, which can improve the turning passability of the trailer when the running wheel set is installed on the trailer in a set manner.

[0008] In order to achieve the above-mentioned purpose, the technical solution of a roadheader trailer provided by the utility model is:

[0009] A tunnel boring machine trailer is provided with a front running wheel group and a rear running wheel group on the left and right sides of the trailer, at least the designated running wheels in the front running wheel group and / or the rear running wheel group are rimless running wheels, and the designated running wheels refer to at least the frontmost running wheel in front of the last running wheel of the front running wheel group and at least the rearmost running wheel behind the frontmost running wheel of the rear running wheel group.

[0010] As a further improvement, the front walking wheel group includes n walking wheels, and each walking wheel is numbered 1, 2...n from front to back, and the walking wheel numbered n is a rim-equipped walking wheel, and the arrangement of the rimless walking wheels is as follows: the walking wheels numbered 1, 2...n-1 are rimless walking wheels, the walking wheels numbered 1, 2...n-2 are rimless walking wheels... and the walking wheel numbered 1 is a rimless walking wheel.

[0011] As a further improvement, in the front running wheel set, except for the last running wheel, the other running wheels are all rimless running wheels, and in the rear running wheel set, all running wheels are rimmed running wheels.

[0012] As a further improvement, the rear walking wheel group includes n walking wheels, and each walking wheel is numbered 1, 2...n from the back to the front, and the walking wheel numbered n is a rim-equipped walking wheel, wherein the rimless walking wheels are arranged as follows: the walking wheels numbered 1, 2...n-1 are rimless walking wheels, the walking wheels numbered 1, 2...n-2 are rimless walking wheels... and the walking wheel numbered 1 is a rimless walking wheel.

[0013] As a further improvement, in the rear running wheel set, except for the front running wheel, the other running wheels are all rimless running wheels, and in the front running wheel set, all running wheels are rimmed running wheels.

[0014] As a further improvement, in the front running wheel set, except for the last running wheel, the other running wheels are all rimless running wheels, and in the rear running wheel set, except for the front running wheel, the other running wheels are all rimless running wheels.

[0015] The beneficial effect is that the utility model belongs to an improved invention. Specifically, by analyzing the steering process of the trailer, it can be known that the distance between the two rimmed running wheels on the same side of the left and right sides that are the farthest apart determines the turning radius of the trailer. In the utility model, the designated running wheels in the front and rear running wheel groups are rimless. For the front running wheel group, except for the last running wheel with a rim, the other at least is the frontmost running wheel without a rim. For the rear running wheel group, except for the front running wheel with a rim, the other at least is the rearmost running wheel without a rim. Therefore, compared with the prior art in which all running wheels are provided with rims, the rimmed running wheels configured on the trailer are not all located at the positions of the two running wheels with the farthest distance from the outside, so that the distance between the rimmed running wheels can be shortened, thereby reducing the turning radius of the trailer without changing the distance between the front legs and the rear legs (to ensure the load span), thereby improving the steering passability of the trailer.

[0016] In order to achieve the above-mentioned purpose, another technical solution of a roadheader trailer provided by the utility model is:

[0017] A tunnel boring machine trailer is provided with four traveling wheel groups, and the connecting line between the installation points of the four traveling wheel groups is a parallelogram structure. Among the four traveling wheel groups, the designated traveling wheels in the two traveling wheel groups at the two ends of a diagonal line are flangeless traveling wheels, and the designated traveling wheels refer to at least the frontmost traveling wheel in front of the last traveling wheel of a front traveling wheel group that is located in the front of the two traveling wheel groups and at least the rearmost traveling wheel behind the frontmost traveling wheel of a rear traveling wheel group that is located in the rear of the two traveling wheel groups.

[0018] As a further improvement, the front walking wheel group includes n walking wheels, and each walking wheel is numbered 1, 2...n from front to back, and the walking wheel numbered n is a rim-equipped walking wheel, and the arrangement of the rimless walking wheels is as follows: the walking wheels numbered 1, 2...n-1 are rimless walking wheels, the walking wheels numbered 1, 2...n-2 are rimless walking wheels... and the walking wheel numbered 1 is a rimless walking wheel.

[0019] As a further improvement, the rear walking wheel group includes n walking wheels, and each walking wheel is numbered 1, 2...n from the back to the front, and the walking wheel numbered n is a rim-equipped walking wheel, wherein the rimless walking wheels are arranged as follows: the walking wheels numbered 1, 2...n-1 are rimless walking wheels, the walking wheels numbered 1, 2...n-2 are rimless walking wheels... and the walking wheel numbered 1 is a rimless walking wheel.

[0020] As a further improvement, in the front running wheel set, except for the last running wheel, the other running wheels are all rimless running wheels, and in the rear running wheel set, except for the front running wheel, the other running wheels are all rimless running wheels.

[0021] The beneficial effect is that the utility model belongs to an improved invention. Specifically, it can be known from the analysis of the steering process of the trailer that the distance between the two running wheels with rims on the same side of the left and right sides that are the farthest apart determines the turning radius of the trailer. In the running wheel group of the trailer in the utility model, in the running wheel group in the diagonal position, for the front running wheel group, except for the last running wheel with a rim, the others are at least the front running wheel without a rim, and for the rear running wheel group, except for the front running wheel with a rim, the others are at least the rear running wheel without a rim. Therefore, compared with the prior art in which all running wheels are provided with rims, the running wheels with rims configured on the trailer are not all located at the positions of the two running wheels with the farthest distance from the outside, so that the distance between the running wheels with rims can be shortened, thereby reducing the turning radius of the trailer without changing the distance between the front legs and the rear legs (to ensure the load span), thereby improving the steering passability of the trailer.

[0022] In order to achieve the above-mentioned purpose, the technical solution of the running wheel set provided by the utility model is:

[0023] A traveling wheel set comprises a wheel frame, on which at least two traveling wheels arranged in front and behind are mounted, wherein the traveling wheel at the edge of one side has a rim, and among the other traveling wheels, at least the traveling wheel farthest from the traveling wheel with the rim has no rim.

[0024] As a further improvement, the walking wheel group includes n walking wheels, and the walking wheels arranged from one side to the other are numbered 1, 2...n, and the walking wheel numbered n has a rim, and the walking wheels without a rim are arranged as follows: the walking wheels numbered 1, 2...n-1 have no rim, the walking wheels numbered 1, 2...n-2 have no rim... and the walking wheel numbered 1 has no rim.

[0025] The beneficial effect is that the utility model belongs to an improved invention. Specifically, a walking wheel group that can be used for a tunnel boring machine trailer to improve the turning passability of the tunnel boring machine trailer is provided, and the walking wheel group includes a walking wheel with a rim and a walking wheel without a rim, and at least one walking wheel without a rim is located at the edge of the walking wheel group. When installing the walking wheel group, for example, for the front walking wheel group installed on the front leg, the walking wheel without a rim can be kept at the position of the front edge of the front walking wheel group; for the rear walking wheel group installed on the rear leg, the walking wheel without a rim can be kept at the position of the rear edge of the rear walking wheel group. For the trailer equipped with the walking wheel group in the utility model in the above manner, compared with the prior art in which all the walking wheels are provided with rims, the walking wheels with rims configured on the trailer are not all located at the positions of the two walking wheels with the farthest distance from the outermost, so that the distance between the walking wheels with rims can be shortened, thereby reducing the turning radius of the trailer without changing the distance between the front leg and the rear leg (ensuring the load span), thereby improving the turning passability of the trailer.

[0026] In order to achieve the above-mentioned purpose, one technical solution of the tunnel boring machine provided by the utility model is:

[0027] A tunnel boring machine includes a trailer, wherein a front running wheel group and a rear running wheel group are arranged on the left and right sides of the trailer, at least the designated running wheels in the front running wheel group and / or the rear running wheel group are rimless running wheels, and the designated running wheels refer to at least the frontmost running wheel in front of the last running wheel of the front running wheel group and at least the rearmost running wheel behind the frontmost running wheel of the rear running wheel group.

[0028] As a further improvement, the front walking wheel group includes n walking wheels, and each walking wheel is numbered 1, 2...n from front to back, and the walking wheel numbered n is a rim-equipped walking wheel, and the arrangement of the rimless walking wheels is as follows: the walking wheels numbered 1, 2...n-1 are rimless walking wheels, the walking wheels numbered 1, 2...n-2 are rimless walking wheels... and the walking wheel numbered 1 is a rimless walking wheel.

[0029] As a further improvement, in the front running wheel set, except for the last running wheel, the other running wheels are all rimless running wheels, and in the rear running wheel set, all running wheels are rimmed running wheels.

[0030] As a further improvement, the rear walking wheel group includes n walking wheels, and each walking wheel is numbered 1, 2...n from the back to the front, and the walking wheel numbered n is a rim-equipped walking wheel, wherein the rimless walking wheels are arranged as follows: the walking wheels numbered 1, 2...n-1 are rimless walking wheels, the walking wheels numbered 1, 2...n-2 are rimless walking wheels... and the walking wheel numbered 1 is a rimless walking wheel.

[0031] As a further improvement, in the rear running wheel set, except for the front running wheel, the other running wheels are all rimless running wheels, and in the front running wheel set, all running wheels are rimmed running wheels.

[0032] As a further improvement, in the front running wheel set, except for the last running wheel, the other running wheels are all rimless running wheels, and in the rear running wheel set, except for the front running wheel, the other running wheels are all rimless running wheels.

[0033] The beneficial effect is that the utility model belongs to an improved invention. Specifically, by analyzing the steering process of the trailer, it can be known that the distance between the two rimmed running wheels on the same side of the left and right sides that are the farthest apart determines the turning radius of the trailer. In the utility model, the designated running wheels in the front and rear running wheel groups are rimless. For the front running wheel group, except for the last running wheel with a rim, the other at least is the frontmost running wheel without a rim. For the rear running wheel group, except for the front running wheel with a rim, the other at least is the rearmost running wheel without a rim. Therefore, compared with the prior art in which all running wheels are provided with rims, the rimmed running wheels configured on the trailer are not all located at the positions of the two running wheels with the farthest distance from the outside, so that the distance between the rimmed running wheels can be shortened, thereby reducing the turning radius of the trailer without changing the distance between the front legs and the rear legs (to ensure the load span), thereby improving the steering passability of the trailer.

[0034] In order to achieve the above-mentioned purpose, another technical solution of the tunnel boring machine provided by the utility model is:

[0035] A tunnel boring machine includes a trailer on which four traveling wheel groups are installed, and the connecting line between the installation points of the four traveling wheel groups is a parallelogram structure. Among the four traveling wheel groups, the designated traveling wheels in the two traveling wheel groups at the two ends of a diagonal line are flangeless traveling wheels, and the designated traveling wheels refer to at least the frontmost traveling wheel in front of the last traveling wheel of a front traveling wheel group that is located in the front of the two traveling wheel groups and at least the rearmost traveling wheel behind the frontmost traveling wheel of a rear traveling wheel group that is located in the rear of the two traveling wheel groups.

[0036] As a further improvement, the front walking wheel group includes n walking wheels, and each walking wheel is numbered 1, 2...n from front to back, and the walking wheel numbered n is a rim-equipped walking wheel, and the arrangement of the rimless walking wheels is as follows: the walking wheels numbered 1, 2...n-1 are rimless walking wheels, the walking wheels numbered 1, 2...n-2 are rimless walking wheels... and the walking wheel numbered 1 is a rimless walking wheel.

[0037] As a further improvement, the rear walking wheel group includes n walking wheels, and each walking wheel is numbered 1, 2...n from the back to the front, and the walking wheel numbered n is a rim-equipped walking wheel, wherein the rimless walking wheels are arranged as follows: the walking wheels numbered 1, 2...n-1 are rimless walking wheels, the walking wheels numbered 1, 2...n-2 are rimless walking wheels... and the walking wheel numbered 1 is a rimless walking wheel.

[0038] As a further improvement, in the front running wheel set, except for the last running wheel, the other running wheels are all rimless running wheels, and in the rear running wheel set, except for the front running wheel, the other running wheels are all rimless running wheels.

[0039] The beneficial effect is that the utility model belongs to an improved invention. Specifically, it can be known from the analysis of the steering process of the trailer that the distance between the two running wheels with rims on the same side of the left and right sides that are the farthest apart determines the turning radius of the trailer. In the running wheel group of the trailer in the utility model, in the running wheel group in the diagonal position, for the front running wheel group, except for the last running wheel with a rim, the others are at least the front running wheel without a rim, and for the rear running wheel group, except for the front running wheel with a rim, the others are at least the rear running wheel without a rim. Therefore, compared with the prior art in which all running wheels are provided with rims, the running wheels with rims configured on the trailer are not all located at the positions of the two running wheels with the farthest distance from the outside, so that the distance between the running wheels with rims can be shortened, thereby reducing the turning radius of the trailer without changing the distance between the front legs and the rear legs (to ensure the load span), thereby improving the steering passability of the trailer. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a front view of an embodiment of a tunnel boring machine in the utility model during construction;

[0041] Figure 2 for Figure 1 A magnified view of the mid-tail position;

[0042] Figure 3 A top view of the tunnel boring machine embodiment of the utility model when turning;

[0043] Figure 4 A front view of a wheel set used in a trailer of a roadheader embodiment of the present utility model;

[0044] Figure 5 A front view of the front and rear wheel groups of a trailer of an embodiment of a roadheader in the utility model;

[0045] Figure 6 It is a front view of the front and rear wheel groups of another implementation manner of the trailer of the roadheader embodiment of the utility model;

[0046] Figure 7 A front view of the front and rear wheel groups of another embodiment of the trailer of the tunnel boring machine embodiment of the present utility model;

[0047] Figure 8 A front view of the front and rear wheel groups of one embodiment of the trailer of the roadheader embodiment of the utility model;

[0048] Fig. 9 A top view of a wheel set of a trailer of a roadheader embodiment of the utility model;

[0049] Fig.10 A top view of a wheel set of another trailer of a roadheader embodiment of the present utility model;

[0050] Fig.11 It is a top view of the wheel set of another trailer of the roadheader embodiment of the utility model.

[0051] Description of reference numerals:

[0052] 1. Main machine; 2. Trailer; 3. Connecting bridge; 4. Track; 201. Front outrigger; 202. Rear outrigger; 203. Flanged running wheel; 204. Flanged running wheel; 205. Wheel frame. DETAILED DESCRIPTION

[0053] When using a tunnel boring machine to construct a tunnel with a small turning radius, whether the trailer can turn smoothly is also related to whether the construction can proceed normally. For trailers that use a wheel set consisting of two or more rail steel wheels as running wheels, it is necessary to set a rim on the running wheel to ensure that the trailer can run along the track without derailing. However, when turning, if the turning radius is small, the rim will prevent the running wheel from sliding along the track, causing the trailer to be unable to pass.

[0054] In order to solve the above problems, the basic technical concept of the utility model is to provide a trailer using a running wheel set consisting of running wheels with rims and running wheels without rims, and when installed, the running wheels without rims in the running wheel set are located at a position far away from the center of the trailer. Compared with the prior art in which all running wheels are set as running wheels with rims, this can reduce the distance between the running wheels with rims on the same side, thereby reducing the turning radius of the trailer, so that the trailer is suitable for the construction of tunnels with small turning radius.

[0055] The present invention is further described in detail below in conjunction with the embodiments and drawings.

[0056] The specific embodiment of the tunnel boring machine provided by the utility model:

[0057] The tunnel boring machine provided in this embodiment is as follows: Figure 1As shown, it includes a main machine 1 and a rear supporting system. The main machine 1 is a Kai-type TBM main machine 1 with a smaller turning radius, which includes a cutter head, a shield, a main drive, a propulsion cylinder, a rear support, etc. The specific parts are all existing technologies and will not be described in detail here. The rear supporting system includes a connecting bridge 3 and a trailer 2. The front end of the connecting bridge 3 is connected to the main machine 1, and the rear end is connected to the trailer 2. The trailer 2 includes more than two ( Figure 1 One is given as an example), and two adjacent trailers 2 are connected.

[0058] Specifically, Figure 1 and Figure 2 As shown, Figure 1 The left and right directions in the figure are the front and rear directions of the trailer 2 during excavation. The trailer 2 has a front leg 201 and a rear leg 202. The front leg 201 is arranged on the left and right sides of the trailer 2, and the rear leg 202 is also arranged on the left and right sides of the trailer 2. Both the front leg 201 and the rear leg 202 are equipped with a running wheel set. For ease of understanding, the running wheel set arranged on the front leg 201 is defined as the front running wheel set, and the running wheel set arranged on the rear leg 202 is defined as the rear running wheel set. Each running wheel set includes a wheel frame 205, on which two running wheels are mounted. Each running wheel is arranged front and back. One of the two running wheels is a wheel wheel 203 without a rim, and the other is a wheel wheel 204 with a rim. The installation method of each running wheel on the wheel frame 205 is a prior art and will not be repeated here.

[0059] like Figure 1-Figure 4 As shown, when the walking wheel set is installed, for the front walking wheel set configured with the front support leg 201, the walking wheel in front of the rim walking wheel 204 is the rimless walking wheel 203; for the rear walking wheel set configured with the rear support leg 202, the walking wheel behind the rim walking wheel 204 is the rimless walking wheel 203.

[0060] Compared with the prior art (all the running wheels have rims), Figure 3 As shown, when turning, the distance between the two wheeled running wheels 204 that play the role of track blocking (which can be compared to the wheelbase of a car) is reduced, and the turning ability of the trailer 2 is improved. According to the calculation of the inventor, the minimum turning radius of the trailer 2 can be reduced from R150m to R80m. When the trailer 2 is moving normally, the wheeled running wheels 204 can still play a limiting role in cooperation with the track 4 to prevent the trailer 2 from derailing.

[0061] In addition, the trailer 2 in this embodiment does not need to change the distance between the front legs 201 and the rear legs 202 while reducing the turning radius, thereby ensuring the carrying capacity of the trailer 2. In addition, the tread of the running wheel does not need to be widened, thereby ensuring that the trailer 2 is not prone to sliding left and right when traveling normally.

[0062] In addition, for different tunnel construction projects, in other implementations, for the trailer 2, such as Figure 5 As shown, it is also possible to only set the wheel group including the wheel with rim 204 and the wheel without rim 203 in the rear wheel group of the front leg 201 and the rear leg 202, and all the wheels can still be the wheel with rim 204. Or as Figure 6 As shown, only the running wheel group including the running wheel with rim 204 and the running wheel without rim 203 can be arranged on the rear leg 202, and in the front running wheel group of the front leg 201, all the running wheels can still be running wheels with rim 204. Compared with the prior art, the distance between the running wheels with rim 204 can also be reduced, and at least the distance of the diameter of one running wheel can be reduced. In this case, the trailer 2 is still suitable for construction projects with a turning radius of R100m or R120m.

[0063] Of course, in other embodiments, for the traveling wheel set, whether it is the front traveling wheel set or the rear traveling wheel set, it can include three traveling wheels, or even more traveling wheels. For such a traveling wheel set consisting of more than three traveling wheels, taking three traveling wheels as an example, for the front traveling wheel set, except for the last traveling wheel, all other traveling wheels can be replaced with rimless traveling wheels, and in this case, all the rear traveling wheel sets can be rimmed traveling wheels. For the rear traveling wheel set, except for the front traveling wheel, all other traveling wheels can be replaced with rimless traveling wheels, and in this case, all the front traveling wheel sets can be rimmed traveling wheels.

[0064] Of course, it is also possible to replace only one of the front running wheel set or the rear running wheel set with a rimless running wheel. Figure 7 As shown, the rearmost running wheel in the rear running wheel group on the rear legs 202 can be set as a rimless running wheel 203, and the other running wheels are still rimmed running wheels 204; in the front running wheel group on the front legs 201, all running wheels are still rimmed running wheels 204. Compared with the running wheel group composed of three rimmed running wheels 204 in the prior art, this can also reduce the turning radius of the trailer. Similarly, if Figure 8 As shown, the frontmost running wheel in the front running wheel group on the front support leg 201 can be set as a rimless running wheel 203, and the other running wheels are still running wheels 204 with rims; in the rear running wheel group on the rear support leg 202, all running wheels are still running wheels 204 with rims.

[0065] Therefore, for the front running wheel group, assuming that the front running wheel group includes n running wheels, from front to back, the running wheels are numbered 1, 2...n, and the running wheel numbered n is a rim-equipped running wheel. There are many ways to set the rimless running wheel. According to the use requirements, for a smaller turning radius, the running wheels numbered 1, 2...n-1 are rimless running wheels. At the same time, according to the principle of increasing turning radius, the running wheels numbered 1, 2...n-2 are rimless running wheels, and so on, until the running wheel numbered 1 is a rimless running wheel. Here is an optimized arrangement of the running wheels in the running wheel group, that is, rimless running wheels are adjacent to rimless running wheels. Of course, it is not difficult to understand that in other embodiments, if the walking wheel group includes four walking wheels, then there are actually the following forms: No. 1 is a rimless walking wheel, No. 2 is a rimmed walking wheel, No. 3 is a rimless walking wheel, and No. 4 is a rimmed walking wheel, that is, the rimmed walking wheels and the rimless walking wheels are arranged in an alternating manner. At this time, as long as No. 1 is a rimless walking wheel, it can still play a role in reducing the turning radius compared to when all the wheels are rimmed walking wheels.

[0066] For the rear running wheel set, it is assumed that the rear running wheel set includes n running wheels, and from the back to the front, the running wheels are numbered 1, 2...n, and the running wheel numbered n is a running wheel with a rim. The setting method of the running wheel without a rim is the same as that of the front running wheel set, and will not be repeated.

[0067] In general, in order to reduce the turning radius of the trailer, for the wheel set configured on the trailer, whether it is the front wheel set or the rear wheel set, a portion of the designated wheels are rimless wheels. Specifically, for the front wheel set, among the designated wheels before the last wheel, at least the frontmost wheel should be a rimless wheel; for the rear wheel set, among the designated wheels after the frontmost wheel, at least the rearmost wheel should be a rimless wheel.

[0068] In addition to the above-mentioned replacement of at least one of the front running wheel group and the rear running wheel group with a running wheel group consisting of a rimless running wheel and a rimmed running wheel, in other embodiments, the running wheel group in the diagonal position of the four running wheel groups of the trailer can actually be replaced with a running wheel group consisting of a rimless running wheel and a rimmed running wheel, which can also reduce the turning radius of the trailer.

[0069] Specifically, Fig. 9 As shown in the figure, from a top-down perspective (the left and right directions in the figure are the front and rear directions of the trailer), the connecting lines (virtual lines) between the installation points of the four running wheel groups form a parallelogram structure, which is divided by the diagonal lines of the parallelogram. Among the running wheels at both ends of the diagonal lines, the designated running wheels are rimless running wheels. For example, each running wheel group includes two running wheels. Fig. 9As shown, for the diagonal running wheel set, it also includes the running wheel set at the front position and the running wheel set at the rear position. Here, the running wheel set at the front position can be defined as the front running wheel set, and the running wheel set at the rear position can be defined as the rear running wheel set. Similarly, for the front running wheel set, it is specified that among the running wheels before the last running wheel, at least the front running wheel should be a rimless running wheel; for the rear running wheel set, it is specified that among the running wheels after the front running wheel, at least the rear running wheel should be a rimless running wheel.

[0070] It is not difficult to understand that, compared with the prior art in which all trailers have rimmed running wheels, the turning ability of the trailer is also improved, whether turning left or right.

[0071] If the wheel group includes more than three wheels, the above arrangement of the three wheels can be directly replaced. For example, when each wheel group includes three wheels, the wheel closest to the center of the trailer can be reserved as a wheel with a rim, and the other wheels can be set as wheels without a rim. Fig.10 As shown, the running wheel in the diagonal running wheel group, which is farthest from the running wheel with rim 204 closest to the center of the trailer, can also be replaced by the running wheel without rim 203.

[0072] In fact, if the running wheel groups at both ends of a diagonal line adopt the above-mentioned running wheel groups, then the running wheel groups at both ends of another diagonal line can adopt running wheel groups consisting entirely of running wheels with rims, or running wheel groups consisting entirely of running wheels without rims. Fig.11 As shown, the flanged running wheel 204 is a double-flange running wheel, so that no matter which direction the trailer deflects during travel, it can have a good limiting effect.

[0073] From the above analysis, it can be seen that no matter which type of trailer is used, a wheel assembly including a wheel with a rim and a wheel without a rim is used. For the wheel assembly, the wheel at the edge of one side is a wheel with a rim, and among the other wheels, at least the wheel farthest from the wheel with a rim is a wheel without a rim. This type of wheel assembly can improve the turning ability of the trailer when installed on the trailer in the above-mentioned combination of several forms.

[0074] Specific embodiment of the tunnel boring machine trailer in the utility model:

[0075] The embodiment of the tunnel boring machine trailer is the trailer described in the above-mentioned tunnel boring machine embodiment, which will not be described in detail here.

[0076] Specific embodiment of the traveling wheel set in the utility model:

[0077] The embodiment of the traveling wheel group is the traveling wheel group described in the embodiment of the above-mentioned tunnel boring machine, and will not be described in detail here.

[0078] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A roadheader trailer, which is provided with a front running wheel set and a rear running wheel set on the left and right sides of the trailer, and is characterized in that: At least the designated running wheels in the front running wheel set and / or the rear running wheel set are rimless running wheels, and the designated running wheels refer to at least the frontmost running wheel in front of the last running wheel of the front running wheel set and at least the rearmost running wheel behind the frontmost running wheel of the rear running wheel set.

2. The tunnel boring machine trailer according to claim 1, characterized in that: The front running wheel group includes n running wheels, and each running wheel is numbered 1, 2...n from front to back. The running wheel numbered n is a running wheel with a rim, and the running wheels without a rim are arranged as follows: the running wheels numbered 1, 2...n-1 are running wheels without a rim, the running wheels numbered 1, 2...n-2 are running wheels without a rim... The running wheel numbered 1 is a running wheel without a rim.

3. The tunnel boring machine trailer according to claim 2, characterized in that: In the front running wheel set, except for the last running wheel, the other running wheels are all rimless running wheels, and in the rear running wheel set, all running wheels are rimmed running wheels.

4. The tunnel boring machine trailer according to claim 1, characterized in that: The rear traveling wheel group includes n traveling wheels, and each traveling wheel is numbered 1, 2...n from the back to the front. The traveling wheel numbered n is a traveling wheel with a rim, and the arrangement of the traveling wheels without a rim is as follows: the traveling wheels numbered 1, 2...n-1 are traveling wheels without a rim, the traveling wheels numbered 1, 2...n-2 are traveling wheels without a rim... The traveling wheel numbered 1 is a traveling wheel without a rim.

5. The tunnel boring machine trailer according to claim 4, characterized in that: In the rear running wheel set, except for the front running wheel, the other running wheels are all rimless running wheels, and in the front running wheel set, all running wheels are rimmed running wheels.

6. The tunnel boring machine trailer according to claim 1, characterized in that: In the front running wheel set, except for the last running wheel, the other running wheels are all rimless running wheels, and in the rear running wheel set, except for the front running wheel, the other running wheels are all rimless running wheels.

7. A roadheader trailer, which is equipped with four running wheel assemblies, and the connecting lines between the mounting points of the four running wheel assemblies are parallelogram structures, characterized in that: Among the four walking wheel groups, the designated walking wheels in the two walking wheel groups at the two ends of a diagonal line are rimless walking wheels, and the designated walking wheels refer to at least the frontmost walking wheel in front of the last walking wheel of the front walking wheel group that is located in the front of the two walking wheel groups and at least the rearmost walking wheel behind the frontmost walking wheel of the rear walking wheel group that is located in the rear of the two walking wheel groups.

8. The roadheader trailer according to claim 7, characterized in that: The front running wheel group includes n running wheels, and each running wheel is numbered 1, 2...n from front to back. The running wheel numbered n is a running wheel with a rim, and the running wheels without a rim are arranged as follows: the running wheels numbered 1, 2...n-1 are running wheels without a rim, the running wheels numbered 1, 2...n-2 are running wheels without a rim... The running wheel numbered 1 is a running wheel without a rim.

9. The roadheader trailer according to claim 7, characterized in that: The rear traveling wheel group includes n traveling wheels, and each traveling wheel is numbered 1, 2...n from the back to the front. The traveling wheel numbered n is a traveling wheel with a rim, and the arrangement of the traveling wheels without a rim is as follows: the traveling wheels numbered 1, 2...n-1 are traveling wheels without a rim, the traveling wheels numbered 1, 2...n-2 are traveling wheels without a rim... The traveling wheel numbered 1 is a traveling wheel without a rim.

10. The tunnel boring machine trailer according to claim 7, characterized in that: In the front running wheel set, except for the last running wheel, the other running wheels are all rimless running wheels, and in the rear running wheel set, except for the front running wheel, the other running wheels are all rimless running wheels.

11. A walking wheel assembly, comprising a wheel frame, on which are mounted at least two walking wheels arranged in a front-to-rear manner, characterized in that: The running wheel at the edge position of one side has a wheel rim, and among the other running wheels, at least the running wheel farthest from the running wheel with the wheel rim has no wheel rim.

12. The traveling wheel assembly according to claim 11, characterized in that: The traveling wheel group includes n traveling wheels, which are numbered 1, 2...n from one side to the other, and the traveling wheel numbered n has a rim, and the traveling wheels without a rim are arranged as follows: the traveling wheels numbered 1, 2...n-1 have no rim, the traveling wheels numbered 1, 2...n-2 have no rim... and the traveling wheel numbered 1 has no rim.

13. A roadheader, comprising a trailer, wherein the left and right sides of the trailer are provided with a front running wheel set and a rear running wheel set, wherein: At least the designated running wheels in the front running wheel set and / or the rear running wheel set are rimless running wheels, and the designated running wheels refer to at least the frontmost running wheel in front of the last running wheel of the front running wheel set and at least the rearmost running wheel behind the frontmost running wheel of the rear running wheel set.

14. The tunnel boring machine according to claim 13, characterized in that: The front running wheel group includes n running wheels, and each running wheel is numbered 1, 2...n from front to back. The running wheel numbered n is a running wheel with a rim, and the running wheels without a rim are arranged as follows: the running wheels numbered 1, 2...n-1 are running wheels without a rim, the running wheels numbered 1, 2...n-2 are running wheels without a rim... The running wheel numbered 1 is a running wheel without a rim.

15. The tunnel boring machine according to claim 14, characterized in that: In the front running wheel set, except for the last running wheel, the other running wheels are all rimless running wheels, and in the rear running wheel set, all running wheels are rimmed running wheels.

16. The tunnel boring machine according to claim 13, characterized in that: The rear traveling wheel group includes n traveling wheels, and each traveling wheel is numbered 1, 2...n from the back to the front. The traveling wheel numbered n is a traveling wheel with a rim, and the arrangement of the traveling wheels without a rim is as follows: the traveling wheels numbered 1, 2...n-1 are traveling wheels without a rim, the traveling wheels numbered 1, 2...n-2 are traveling wheels without a rim... The traveling wheel numbered 1 is a traveling wheel without a rim.

17. The tunnel boring machine according to claim 16 is characterized in that, in the rear traveling wheel group, except for the front traveling wheel, the other traveling wheels are all rimless traveling wheels, and in the front traveling wheel group, all traveling wheels are rimmed traveling wheels.

18. The tunnel boring machine according to claim 13, characterized in that: In the front running wheel set, except for the last running wheel, the other running wheels are all rimless running wheels, and in the rear running wheel set, except for the front running wheel, the other running wheels are all rimless running wheels.

19. A roadheader, comprising a trailer, on which four running wheel assemblies are mounted, and the connecting lines between the mounting points of the four running wheel assemblies are parallelogram structures, wherein: Among the four walking wheel groups, the designated walking wheels in the two walking wheel groups at the two ends of a diagonal line are rimless walking wheels, and the designated walking wheels refer to at least the frontmost walking wheel in front of the last walking wheel of the front walking wheel group that is located in the front of the two walking wheel groups and at least the rearmost walking wheel behind the frontmost walking wheel of the rear walking wheel group that is located in the rear of the two walking wheel groups.

20. The tunnel boring machine according to claim 19, characterized in that: The front running wheel group includes n running wheels, and each running wheel is numbered 1, 2...n from front to back. The running wheel numbered n is a running wheel with a rim, and the running wheels without a rim are arranged as follows: the running wheels numbered 1, 2...n-1 are running wheels without a rim, the running wheels numbered 1, 2...n-2 are running wheels without a rim... The running wheel numbered 1 is a running wheel without a rim.

21. The tunnel boring machine according to claim 19, characterized in that: The rear traveling wheel group includes n traveling wheels, and each traveling wheel is numbered 1, 2...n from the back to the front. The traveling wheel numbered n is a traveling wheel with a rim, and the arrangement of the traveling wheels without a rim is as follows: the traveling wheels numbered 1, 2...n-1 are traveling wheels without a rim, the traveling wheels numbered 1, 2...n-2 are traveling wheels without a rim... The traveling wheel numbered 1 is a traveling wheel without a rim.

22. The tunnel boring machine according to claim 19, characterized in that: In the front running wheel set, except for the last running wheel, the other running wheels are all rimless running wheels, and in the rear running wheel set, except for the front running wheel, the other running wheels are all rimless running wheels.

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