Load loading device

Abstract

The invention provides a load loading device, which comprises a loading disc, a radial moment loading module, a first upsetting moment loading module, a second upsetting moment loading module and an axial moment loading module, and is characterized in that the radial moment loading device is arranged at the top position of the loading disc, and the radial moment loading device is in contact with the top of the loading disc; the first upsetting moment loading device is arranged on the first side of the loading disc, and the first upsetting moment loading device is in contact with a first position of the edge of the first side; the second upsetting moment loading module is arranged on the second side of the loading disc, and the second upsetting moment loading module is in contact with a second position of the edge of the second side; the first position and the second position are respectively positioned at two ends of the same axis of the loading disc; the axial torque loading module is arranged on the first side of the loading disc, and the axial torque loading module is in contact with the center position of the first side. By means of the device, loads in all directions can be conveniently applied to the main bearing of the shield tunneling machine when the shield tunneling machine bearing simulation load test is carried out.

Description

Technical Field

[0001] The present application relates to the technical field of shield machine bearings, and in particular to a load loading device. Background Art

[0002] When conducting a simulated load test on the main bearing of a shield machine, it is necessary to apply loads in different directions to the main bearing of the shield machine. In the related technology, the load application method is relatively complicated. Summary of the invention

[0003] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0004] In a first aspect, the present application proposes a load loading device, comprising: a loading disk, a radial moment loading module, a first overturning moment loading module, a second overturning moment loading module and an axial moment loading module, wherein the radial moment loading device is arranged at the top position of the loading disk, and the radial moment loading device is in contact with the top of the loading disk; the first overturning moment loading device is arranged on the first side of the loading disk, and the first overturning moment loading device is in contact with the first position of the first side edge; the second overturning moment loading module is arranged on the second side of the loading disk, and the second overturning moment loading module is in contact with the second position of the second side edge; the first position and the second position are respectively located at two ends of the same axis of the loading disk; the axial moment loading module is arranged on the first side of the loading disk, and the axial moment loading module is in contact with the center position of the first side.

[0005] In one implementation, the axial torque loading module includes: a first hydraulic cylinder, a first flange, a first hollow pressure sensor, a loading head and a first cylinder bracket, wherein a first transverse through hole is provided on the first cylinder bracket; the first hydraulic cylinder is connected to one side of the first cylinder bracket; the first hydraulic rod of the first hydraulic cylinder passes through the first transverse through hole and is connected to one side of the first flange; the other side of the first flange is connected to the first hollow pressure sensor; the loading head passes through the first hollow pressure sensor and is connected to the first flange.

[0006] In an optional implementation, the loading disc includes a disc body, a hollow bearing seat, a roller bearing, a loading sleeve and a retaining ring, wherein one side of the hollow bearing seat is connected to one side of the loading disc; the other side of the hollow bearing seat has a recessed structure; the roller bearing is arranged in the recessed structure; one end of the loading sleeve passes through the roller bearing and is connected to the disc body; the other end of the loading sleeve contacts the loading head; one end of the retaining ring is embedded in the loading sleeve, and the other end of the retaining ring is embedded in the disc body.

[0007] In an optional implementation, at least one first transverse guide rod is provided on the first cylinder bracket, at least one first through hole is opened on the first flange, each of the first through holes is passed through a first vertical guide rod, and each of the first transverse guide rods is connected to the first flange.

[0008] In one implementation, the overturning moment loading module includes: a second hydraulic cylinder, a second flange, a second hollow pressure sensor, a first loading roller mounting seat, a first ball bearing and a second cylinder bracket, wherein a second transverse through hole is provided on the second cylinder bracket; the second hydraulic cylinder is connected to one side of the second cylinder bracket; the second hydraulic rod of the second hydraulic cylinder passes through the second transverse through hole and is connected to one side of the second flange; the other side of the second flange is connected to the second hollow pressure sensor; one end of the first loading roller mounting seat passes through the second hollow pressure sensor and is connected to the second flange; the other end of the first loading roller mounting seat is connected to the first ball bearing.

[0009] In an optional implementation, at least one second transverse guide rod is provided on the second cylinder bracket, at least one second through hole is opened on the second flange, each of the second through holes is passed through a second vertical guide rod, and each of the second transverse guide rods is connected to the second flange.

[0010] In an optional implementation, a loading raceway is provided on the edge of the loading disk.

[0011] In one implementation, the radial moment loading module includes a third hydraulic cylinder, a third flange, a third hollow pressure sensor, a connecting rod, a second loading roller mount, a second ball bearing and a third cylinder bracket, wherein a vertical through hole is provided at the top of the third cylinder bracket; the third hydraulic cylinder is connected to the top of the third cylinder bracket; the third hydraulic rod of the third hydraulic cylinder passes through the vertical through hole from top to bottom, and the third hydraulic rod is connected to the top of the third flange; the bottom of the third flange is connected to the third hollow pressure sensor; the top of the connecting rod is connected to the third hollow pressure sensor; the bottom of the connecting rod is connected to the top of the second loading roller mount; the bottom of the second loading roller mount is connected to the second ball bearing.

[0012] In an optional implementation, at least one vertical guide rod is provided on the third cylinder bracket, at least one through hole is opened on the third flange, one vertical guide rod passes through each through hole, and each vertical guide rod is connected to the third flange.

[0013] In an optional implementation, the ball bearing is a double-row self-aligning ball bearing.

[0014] The load-applying device provided in the present application can conveniently apply loads in all directions to the main bearing of the shield machine when conducting a simulated load test on the shield machine bearing, thereby conveniently conducting a simulated load test on the shield machine bearing.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of a load loading device provided in an embodiment of the present application;

[0018] Figure 2A It is a structural schematic diagram of an axial moment loading module provided in an embodiment of the present application;

[0019] Figure 2B is a structural schematic diagram of a loading disk provided in an embodiment of the present application;

[0020] Figure 3A It is a structural schematic diagram of an overturning moment loading module provided in an embodiment of the present application;

[0021] Figure 3B is a structural schematic diagram of another overturning moment loading module provided in an embodiment of the present application;

[0022] Figure 4 is a schematic diagram of the structure of another loading disk provided in an embodiment of the present application;

[0023] Figure 5A It is a structural schematic diagram of a radial moment loading module provided in an embodiment of the present application;

[0024] Figure 5B It is a structural schematic diagram of another radial moment loading module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0026] 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, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] The load applying device according to an embodiment of the present application will be described below with reference to the accompanying drawings.

[0028] It should be noted that the load applying device provided in the embodiment of the present application can be applied to the simulated load test of the main bearing of the shield machine.

[0029] Figure 1 Schematic diagram of a load loading device provided in an embodiment of the present application. Figure 1 As shown, the device includes: a loading disk 101, a radial moment loading module 102, a first overturning moment loading module 103, a second overturning moment loading module 104 and an axial moment loading module 105, wherein the radial moment loading device is arranged at the top position of the loading disk 101, and the radial moment loading device is in contact with the top of the loading disk 101; the first overturning moment loading module is arranged on the first side of the loading disk 101, and the first overturning moment loading module is in contact with the first position of the first side edge; the second overturning moment loading module 104 is arranged on the second side of the loading disk 101, and the second overturning moment loading module 104 is in contact with the second position of the second side edge; the first position and the second position are respectively located at two ends of the same axis of the loading disk 101; the axial moment loading module 105 is arranged on the first side of the loading disk 101, and the axial moment loading module 105 is in contact with the center position of the first side.

[0030] For example, when conducting a simulated load test on the main bearing of a shield machine, after the main bearing of the shield machine is connected to the loading plate 101, loads in various directions are applied to the main bearing of the shield machine through the above-mentioned radial moment loading module 102, the first overturning moment loading module 103, the second overturning moment loading module 104 and the axial moment loading module 105.

[0031] See also Figure 2A , Figure 2A Schematic diagram of the structure of an axial moment loading module provided in an embodiment of the present application. Figure 2AAs shown, the module includes a first hydraulic cylinder 201, a first flange 202, a first hollow pressure sensor 203, a loading head 204 and a first cylinder bracket 205, wherein a first transverse through hole is provided on the first cylinder bracket 205; the first hydraulic cylinder 201 is connected to one side of the first cylinder bracket 205; the first hydraulic rod of the first hydraulic cylinder 201 passes through the first transverse through hole and is connected to one side of the first flange 202; the other side of the first flange 202 is connected to the first hollow pressure sensor 203; the loading head 204 passes through the first hollow pressure sensor 203 and is connected to the first flange 202.

[0032] Exemplarily, the axial moment loading module uses an L-shaped cylinder bracket as a carrier, and improves the bearing capacity of the first cylinder bracket 205 through a rib plate. The first hydraulic cylinder 201 is a loading drive. A first flange 202 is installed on the hydraulic cylinder of the first hydraulic cylinder 201, and a loading head 204 is connected to a first hollow pressure sensor 203 and integrally installed on the first flange 202. During the loading process, the first hydraulic cylinder 201 provides pressure to move the loading head 204 and apply a load to the loading disk.

[0033] See also Figure 2A and Figure 2B , Figure 2B Schematic diagram of a loading disk provided in an embodiment of the present application. Figure 2A and Figure 2B As shown, in some embodiments, in order to cooperate with the axial torque loading module to realize dynamic loading of the axial load, the loading disk includes a disk body 206, a hollow bearing seat 207, a hollow roller bearing 208, a loading sleeve 209 and a retaining ring 210, wherein one side of the hollow bearing seat 207 is connected to one side of the disk body 206; the other side of the hollow bearing seat 207 has a recessed structure; a hollow roller bearing 208 is arranged in the recessed structure; one end of the loading sleeve 209 passes through the hollow roller bearing 208 and the hollow bearing seat 207 and is connected to the disk body 206; the other end of the loading sleeve 209 contacts the loading head 204; one end of the retaining ring 210 is embedded in the loading sleeve 209, and the other end of the retaining ring 210 is embedded in the disk body 206.

[0034] For example, by installing the hollow bearing seat 207 at the center of the loading disk, the hollow roller bearing 208 is selected to cooperate with the loading sleeve 209 and is installed as a whole in the hollow bearing seat 207. At the same time, in order to prevent the loading sleeve 209 from spinning, a retaining ring 210 is installed at the tail of the loading sleeve 209. When the loading head 204 contacts the loading sleeve 209, the axial load is applied to the inner ring of the hollow roller bearing 208, and its outer ring rotates with the loading disk to realize the dynamic loading of the axial load. This structure also ensures the centering and accuracy of the axial load loading.

[0035] In some embodiments, at least one first transverse guide rod is provided on the first cylinder bracket, at least one first through hole is opened on the first flange, a first vertical guide rod is passed through each first through hole, and each first transverse guide rod is connected to the first flange, so as to prevent the hydraulic rod from deflecting significantly during loading.

[0036] See also Figure 3A and Figure 3B , Figure 3A is a structural schematic diagram of an overturning moment loading module provided in an embodiment of the present application, Figure 3B Schematic diagram of another overturning moment loading module provided in an embodiment of the present application. Figure 3A and Figure 3B As shown, the module includes a second hydraulic cylinder 301, a second flange 302, a second hollow pressure sensor 303, a first loading roller mounting seat 304, a first ball bearing 305 and a second cylinder bracket 306, wherein a second transverse through hole is provided on the second cylinder bracket 306; the second hydraulic cylinder 301 is connected to one side of the second cylinder bracket 306; the second hydraulic rod of the second hydraulic cylinder 301 passes through the second transverse through hole and is connected to one side of the second flange 302; the other side of the second flange 302 is connected to the second hollow pressure sensor 303; one end of the first loading roller mounting seat 304 passes through the second hollow pressure sensor 303 and is connected to the second flange 302; the other end of the first loading roller mounting seat 304 is connected to the first ball bearing 305.

[0037] For example, a second flange 302 is installed on the hydraulic rod of the second hydraulic cylinder 301. The first loading roller mounting seat 304 is connected to the second hollow pressure sensor 303 and integrally mounted on the second flange 302. Similarly, in order to realize the dynamic loading of the overturning moment, a first ball bearing 305 is installed on the first loading roller mounting seat 304. Figure 3B As shown, the overturning moment loading module can apply the overturning moment to the loading plate through the first ball bearing 305 in contact with the edge of the loading plate.

[0038] In some embodiments, in order to prevent the hydraulic rod from deflecting significantly during loading, at least one second transverse guide rod is provided on the second cylinder bracket, at least one second through hole is opened on the second flange, a second vertical guide rod is passed through each second through hole, and each second transverse guide rod is connected to the second flange.

[0039] In some embodiments, the edge of the loading plate is provided with a loading raceway. As an example, see Figure 4 , Figure 4 Schematic diagram of another loading disk provided in an embodiment of the present application. Figure 4As shown, in order to cooperate with the overturning moment loading module, the loading plate is provided with an overturning moment loading raceway in the circumferential direction, and a reinforcing rib is welded on the back of the loading plate to improve the strength. Four lifting holes are evenly opened on the plate body of the loading plate to facilitate the disassembly and assembly of the plate in the later test.

[0040] See also Figure 5A and Figure 5B , Figure 5A is a schematic structural diagram of a radial moment loading module provided in an embodiment of the present application, Figure 5B Schematic diagram of another radial moment loading module provided in an embodiment of the present application. Figure 5A and Figure 5B As shown, the module includes a third hydraulic cylinder 501, a third flange 502, a third hollow pressure sensor 503, a connecting rod 504, a second loading roller mounting seat 505, a second ball bearing 506 and a third oil cylinder bracket 507, wherein a vertical through hole is provided at the top of the third oil cylinder bracket 507; the third hydraulic cylinder 501 is connected to the top of the third oil cylinder bracket 507; the third hydraulic rod of the third hydraulic cylinder 501 passes through the vertical through hole from top to bottom, and the third hydraulic rod is connected to the top of the third flange 502; the bottom of the third flange 502 is connected to the third hollow pressure sensor 503; the top of the connecting rod 504 is connected to the third hollow pressure sensor; the bottom of the connecting rod 504 is connected to the top of the second loading roller mounting seat 505; the bottom of the second loading roller mounting seat 505 is connected to the second ball bearing 506.

[0041] Exemplarily, the part of the hydraulic piston rod of the third hydraulic cylinder 501 that passes through the through hole of the third cylinder bracket is installed with a third flange 502, the connecting rod 504 is connected to the third hollow pressure sensor 503 and is installed as a whole on the third flange 502, the bottom of the connecting rod 504 is connected to the top of the second loading roller mounting seat 505; the bottom of the second loading roller mounting seat 505 is connected to the second ball bearing 506.

[0042] In some embodiments, at least one vertical guide rod is provided on the third cylinder bracket, at least one through hole is opened on the third flange, each through hole passes through one of the vertical guide rods, and each of the vertical guide rods is connected to the third cylinder bracket and the third flange.

[0043] The device of the embodiment of the present application can conveniently apply loads in all directions to the main bearing of the shield machine when conducting a simulated load test on the shield machine bearing.

[0044] In the description of the aforementioned embodiments, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 representations of the above terms do 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. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A load loading device, characterized in that: include: A loading disk, a radial moment loading module, a first overturning moment loading module, a second overturning moment loading module and an axial moment loading module, wherein: The radial moment loading device is disposed at the top of the loading disk, and the radial moment loading device is in contact with the top of the loading disk; The first overturning moment loading device is disposed on a first side of the loading plate, and the first overturning moment loading device is in contact with a first position of the first side edge; The second overturning moment loading module is disposed on the second side of the loading plate, and the second overturning moment loading module contacts a second position of the second side edge; The first position and the second position are respectively located at two ends of the same axis of the loading plate; The axial moment loading module is disposed on a first side of the loading disk, and the axial moment loading module is in contact with a center position of the first side.

2. The device according to claim 1, characterized in that The axial moment loading module comprises: a first hydraulic cylinder, a first flange, a first hollow pressure sensor, a loading head and a first oil cylinder bracket, wherein: The first oil cylinder bracket is provided with a first transverse through hole; The first hydraulic cylinder is connected to one side of the first cylinder bracket; The first hydraulic rod of the first hydraulic cylinder passes through the first transverse through hole and is connected to one side of the first flange; The other side of the first flange is connected to the first hollow pressure sensor; The loading head passes through the first hollow pressure sensor and is connected to the first flange.

3. The device according to claim 2, characterized in that The loading disc comprises a disc body, a hollow bearing seat, a roller bearing, a loading sleeve and a retaining ring, wherein: One side of the hollow bearing seat is connected to one side of the loading plate; The other side of the hollow bearing seat has a concave structure; The roller bearing is arranged in the recessed structure; One end of the loading sleeve passes through the roller bearing and is connected to the disc body; The other end of the loading sleeve is in contact with the loading head; One end of the retaining ring is embedded in the loading sleeve, and the other end of the retaining ring is embedded in the disc body.

4. The device according to claim 2, characterized in that At least one first transverse guide rod is arranged on the first oil cylinder bracket, at least one first through hole is opened on the first flange, each of the first through holes is penetrated by a first vertical guide rod, and each of the first transverse guide rods is connected to the first flange.

5. The device according to claim 1, characterized in that The overturning moment loading module includes: a second hydraulic cylinder, a second flange, a second hollow pressure sensor, a first loading roller mounting seat, a first ball bearing and a second oil cylinder bracket, wherein: The second oil cylinder bracket is provided with a second transverse through hole; The second hydraulic cylinder is connected to one side of the second cylinder bracket; The second hydraulic rod of the second hydraulic cylinder passes through the second transverse through hole and is connected to one side of the second flange; The other side of the second flange is connected to the second hollow pressure sensor; One end of the first loading roller mounting seat passes through the second hollow pressure sensor and is connected to the second flange; The other end of the first loading roller mounting seat is connected to the first ball bearing.

6. The device according to claim 5, characterized in that At least one second transverse guide rod is arranged on the second oil cylinder bracket, at least one second through hole is opened on the second flange, a second vertical guide rod is passed through each of the second through holes, and each of the second transverse guide rods is connected to the second flange.

7. The device according to claim 5, characterized in that A loading raceway is arranged on the edge of the loading plate.

8. The device according to claim 1, characterized in that The radial moment loading module includes a third hydraulic cylinder, a third flange, a third hollow pressure sensor, a connecting rod, a second loading roller mounting seat, a second ball bearing and a third oil cylinder bracket, wherein: A vertical through hole is provided on the top of the third oil cylinder bracket; The third hydraulic cylinder is connected to the top of the third oil cylinder bracket; The third hydraulic rod of the third hydraulic cylinder passes through the vertical through hole from top to bottom, and the third hydraulic rod is connected to the top of the third flange; The bottom of the third flange is connected to the third hollow pressure sensor; The top of the connecting rod is connected to the third hollow pressure sensor; The bottom of the connecting rod is connected to the top of the second loading roller mounting seat; The bottom of the second loading roller mount is connected to the second ball bearing.

9. The device according to claim 8, characterized in that At least one vertical guide rod is arranged on the third oil cylinder bracket, at least one through hole is opened on the third flange, one vertical guide rod passes through each through hole, and each vertical guide rod is connected to the third flange.

10. The device according to claim 8, characterized in that The ball bearing is a double-row self-aligning ball bearing.

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