Output assembly with torque sensor

Abstract

The output assembly with the torque sensor comprises the torque sensor and a pin roller type supporting bearing, the pin roller type supporting bearing comprises a fixed ring, a plurality of pin rollers, an inner moving ring and an outer moving ring, the bottom of the inner moving ring rotates on the inner periphery of the fixed ring in a limited mode through the pin rollers, and the outer moving ring rotates on the outer periphery of the fixed ring through the pin rollers. The outer moving ring is limited and rotated on the periphery of the fixed ring through a roller, the fixed ring is connected with a shell of power input equipment, the inner moving ring is simultaneously connected with a power output end of the power input equipment and an input inner ring of the torque sensor, and an output outer ring of the torque sensor is connected with the outer moving ring. The six rows of rigid roller type supporting bearings are adopted, the axial and circumferential supporting rigidity of the output end of the power equipment is improved, and the operation stability and the output precision of the output end of the power equipment are improved. Meanwhile, the interference of torque impact on torque signal acquisition is reduced, and the torque detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of torque sensing, in particular to an output component with a torque sensor. Background Art

[0002] Torque sensors are widely used in power equipment to detect the output torque of the power equipment.

[0003] The existence of a thin deformation area between the input inner ring and the output outer ring of the existing torque sensor greatly weakens the connection rigidity between the input inner ring and the output outer ring. At the same time, especially during high torque startup, a large impact will be generated in the axial direction, generating noise signals that affect the detection of torque signals. Utility Model Content

[0004] In response to the above problems, an embodiment of the present invention provides an output component with a torque sensor and proposes a rigid roller support structure to solve the technical problem of weakened rigidity of the output end of the power equipment carrying the torque sensor, thereby improving output stability and accuracy.

[0005] The present invention provides an output assembly with a torque sensor, comprising:

[0006] Torque sensor;

[0007] A roller-type support bearing comprises a fixed ring, a plurality of rollers, an inner moving ring and an outer moving ring. The bottom of the inner moving ring is limited for rotation on the inner periphery of the fixed ring by rollers, and the outer moving ring is limited for rotation on the outer periphery of the fixed ring by rollers. The fixed ring is connected to the housing of a power input device, and the inner moving ring is simultaneously connected to the power output end of the power input device and the input inner ring of a torque sensor. The output outer ring of the torque sensor is connected to the outer moving ring.

[0008] Preferably, the fixed ring, inner moving ring, outer moving ring, input inner ring, output outer ring and each roller are concentrically arranged.

[0009] Preferably, the longitudinal cross-section of the fixed ring is an I-shaped structure, the longitudinal cross-sections of the inner and outer moving rings are L-shaped structures, the outer flange at the bottom of the inner moving ring extends into the inner cavity of the fixed ring, and the outer flange at the bottom of the inner moving ring is rotatably connected to the inner cavity wall of the fixed ring through rollers; the outer flange at the bottom of the outer moving ring extends into the outer cavity of the fixed ring, and the outer flange at the bottom of the outer moving ring is rotatably connected to the outer cavity wall of the fixed ring through rollers.

[0010] Preferably, the top of the inner moving ring outer flange is connected to the top of the inner cavity wall of the fixed ring through a first transverse roller; the bottom of the inner moving ring outer flange is connected to the bottom of the inner cavity wall of the fixed ring through a second transverse roller; the inner side wall of the inner moving ring outer flange is connected to the inner cavity side wall of the fixed ring through a first radial roller.

[0011] Preferably, the top of the outer moving ring extension flange is connected to the top of the outer cavity wall of the fixed ring through a third transverse roller; the bottom of the outer moving ring extension flange is connected to the bottom of the outer cavity wall of the fixed ring through a fourth transverse roller; the inner side wall of the outer moving ring extension flange is connected to the outer cavity side wall of the fixed ring through a second radial roller.

[0012] Preferably, the fixing ring comprises:

[0013] A first fixing ring, the longitudinal cross section of which is T-shaped;

[0014] The second fixing ring is in the shape of a flat circular ring. The bottom of the second fixing ring is connected to the housing of the power input device. The first fixing ring is installed on the second fixing ring to form an I-shaped structure.

[0015] Preferably, the first fixing ring and the second fixing ring are fixed up and down by first bolts; and the fixing ring is fixed to the housing of the power input device by second bolts.

[0016] Preferably, the top of the inner moving ring is connected to the input inner ring through an inner ring bolt, and the input inner ring is rotatably connected to the fixed ring through an annular guide rail; the top of the outer moving ring is connected to the output outer ring through an outer ring bolt.

[0017] Preferably, the first transverse roller and the second transverse roller are symmetrically arranged in the upper and lower parts, and the third transverse roller and the fourth transverse roller are symmetrically arranged in the upper and lower parts.

[0018] Preferably, the first radial roller and the second radial roller are symmetrically arranged inside and outside, the first transverse roller and the third transverse roller are symmetrically arranged inside and outside, and the second transverse roller and the fourth transverse roller are symmetrically arranged inside and outside.

[0019] Beneficial effects of the utility model:

[0020] This utility model provides an output assembly with a torque sensor. It utilizes six rows of rigid roller support bearings to enhance the axial and circumferential support rigidity of the power equipment output, improving operational stability and output accuracy. It also reduces the interference of torque shock on torque signal acquisition, improving torque detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0022] Figure 1 Shows the overall schematic diagram of the output assembly with a torque sensor;

[0023] Figure 2 Shows the bottom structure diagram of the output component with a torque sensor;

[0024] Figure 3 Shows the bottom structure of the six-row roller support bearing;

[0025] Figure 4 A perspective view of a six-row roller support bearing is shown;

[0026] Figure 5 shows a cross-sectional view of an output assembly with a torque sensor;

[0027] Figure 6 Shows the internal structure of a six-row roller support bearing. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] It should be understood that terms such as "having", "including" and "comprising" used herein do not exclude the existence or addition of one or more other elements or their combinations. Terms such as "left and right", "front and back" and "up and down" used herein do not exclude descriptions of other positional relationships.

[0030] like Figure 1-6 As shown, the embodiment of the present invention provides an output assembly with a torque sensor, wherein the torque sensor 1 comprises an input inner ring 13, an output outer ring 12, and a thin deformable region 14 connected therebetween. The torque sensor 1 is used to detect the torque at the power output end of the power equipment.

[0031] The roller support bearing 2 includes a fixed ring, multiple rollers, an inner moving ring 24 and an outer moving ring 21. The bottom of the inner moving ring 24 is limited to rotate on the inner periphery of the fixed ring by the rollers, and the outer moving ring 21 is limited to rotate on the outer periphery of the fixed ring by the rollers, thereby realizing a rigid rotation configuration of the inner moving ring 24, the outer moving ring 21 and the fixed ring.

[0032] At the same time, the fixed ring is connected to the power input device housing, the inner dynamic ring 24 is connected to both the power output of the power input device and the input inner ring 13 of the torque sensor 1, and the output outer ring 12 of the torque sensor 1 is connected to the outer dynamic ring 21. This ensures a rigid installation of the torque sensor 1. During the torque sensor 1 detection process, the rollers provide a rigid connection in both the axial and circumferential directions, without affecting the connection rigidity of the power device output, thereby improving the operational stability and output accuracy of the power device output. Furthermore, the rigid roller support structure reduces the interference of torque shock on torque signal acquisition, thereby improving torque detection accuracy.

[0033] In the above technical solution, the fixed ring, inner moving ring 24, outer moving ring 21, input inner ring 13, output outer ring 12 and each roller are concentrically arranged, which ensures the stability and installation accuracy of the entire output assembly.

[0034] In this embodiment, the longitudinal cross-section of the fixed ring is an I-shaped structure, and the longitudinal cross-sections of the inner moving ring 24 and the outer moving ring 21 are L-shaped structures. The outer flange at the bottom of the inner moving ring 24 extends into the inner cavity of the fixed ring and is rotatably connected to the inner cavity wall of the fixed ring through rollers; similarly, the outer flange at the bottom of the outer moving ring 21 extends into the outer cavity of the fixed ring and is rotatably connected to the outer cavity wall of the fixed ring through rollers, thereby realizing the rotational connection between the inner moving ring 24 and the outer moving ring 21 and the fixed ring, and at the same time, the rotation of the inner moving ring 24 and the outer moving ring 21 is supported by the rollers to ensure the rigidity of the entire output assembly.

[0035] Specifically, this patent adopts a six-row roller support bearing structure, including 4 transverse rollers and 2 radial roller structures. The top of the outer flange of the inner moving ring 24 is connected to the top of the inner cavity wall of the fixed ring through the first transverse roller 241; the bottom of the outer flange of the inner moving ring 24 is connected to the bottom of the inner cavity wall of the fixed ring through the second transverse roller 242; the inner side wall of the outer flange of the inner moving ring 24 is connected to the inner cavity side wall of the fixed ring through the first radial roller 243, and the inner cavity side wall of the fixed ring is provided with an axial limiting structure of the first radial roller 243, thereby realizing a rigid rotation connection between the inner moving ring 24 and the fixed ring.

[0036] Similarly, the top of the outer flange of the outer moving ring 21 is connected to the top of the outer cavity wall of the fixed ring through the third transverse roller 211; the bottom of the outer flange of the outer moving ring 21 is connected to the bottom of the outer cavity wall of the fixed ring through the fourth transverse roller 213; the inner side wall of the outer flange of the outer moving ring 21 is connected to the outer cavity side wall of the fixed ring through the second radial roller 212, and the outer cavity side wall of the fixed ring is provided with an axial limiting structure of the second radial roller 212, thereby realizing a rigid rotational connection between the outer moving ring 21 and the fixed ring.

[0037] Each transverse roller is installed in the pocket of the transverse cage, and each radial roller is generally not equipped with a cage and is installed in a full-roll configuration or with spacer blocks.

[0038] In this embodiment, in order to facilitate assembly, the fixing ring is provided as a split structure. Specifically, the fixing ring includes:

[0039] The first fixing ring 22 has a T-shaped longitudinal cross section;

[0040] The second fixing ring 23 is in the shape of a flat circular ring. The bottom of the second fixing ring 23 is connected to the housing of the power input device. The first fixing ring 22 is installed on the second fixing ring 23 to form an I-shaped structure.

[0041] Specifically, a through hole 221 is formed on the first fixing ring 22, and a screw hole is formed on the second fixing ring 23. The first fixing ring 22 and the second fixing ring 23 are fixed up and down by a first bolt, thereby realizing the connection between the first fixing ring 22 and the second fixing ring 23; at the same time, a through hole 222 is also formed on the first fixing ring 22 and the second fixing ring 23. The fixing rings are fixed to the power input device housing by a second bolt that passes through the through holes 222 on the first fixing ring 22 and the second fixing ring 23 in sequence, thereby realizing the connection between the fixing rings and the power input device housing.

[0042] The top of the inner moving ring 24 is connected to the input inner ring 13 via an inner ring bolt 15, and the input inner ring 13 is rotatably connected to the fixed ring via an annular guide rail 16, and the fixed ring provides rotational support for the input inner ring 13; the top of the outer moving ring 21 is provided with a screw hole 244, which is connected to the output outer ring 12 via an outer ring bolt 11, thereby realizing the connection between the torque sensor 1 and the roller support bearing 2.

[0043] Furthermore, to enhance structural stability and compactness, the first and second transverse rollers 241 and 242 are arranged vertically and symmetrically, while the third and fourth transverse rollers 211 and 213 are also arranged vertically and symmetrically. The first and second radial rollers 243 and 212 are also arranged internally and externally symmetrically. The first and third transverse rollers 241 and 211 are also arranged internally and externally symmetrically, while the second and fourth transverse rollers 242 and 213 are also arranged internally and externally symmetrically. This arrangement balances forces in all directions, improving operational stability of the entire output assembly.

[0044] As described above, this utility model provides an output assembly with a torque sensor. It utilizes six rows of rigid roller support bearings to enhance the axial and circumferential support rigidity of the power equipment output, improving operational stability and output accuracy. Furthermore, it reduces the interference of torque shock on torque signal acquisition, thereby improving torque detection accuracy.

[0045] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. An output assembly with a torque sensor, characterized in that: include: Torque sensor; A roller-type support bearing comprises a fixed ring, a plurality of rollers, an inner moving ring and an outer moving ring. The bottom of the inner moving ring is limited for rotation on the inner periphery of the fixed ring by rollers, and the outer moving ring is limited for rotation on the outer periphery of the fixed ring by rollers. The fixed ring is connected to the housing of a power input device, and the inner moving ring is simultaneously connected to the power output end of the power input device and the input inner ring of a torque sensor. The output outer ring of the torque sensor is connected to the outer moving ring.

2. The output assembly with a torque sensor according to claim 1, characterized in that: The fixed ring, inner moving ring, outer moving ring, input inner ring, output outer ring and each roller are concentrically arranged.

3. The output assembly with a torque sensor according to claim 1, characterized in that: The longitudinal cross-section of the fixed ring is an I-shaped structure, and the longitudinal cross-sections of the inner and outer moving rings are L-shaped structures. The outer flange at the bottom of the inner moving ring extends into the inner cavity of the fixed ring, and the outer flange at the bottom of the inner moving ring is rotatably connected to the inner cavity wall of the fixed ring through rollers; the outer flange at the bottom of the outer moving ring extends into the outer cavity of the fixed ring, and the outer flange at the bottom of the outer moving ring is rotatably connected to the outer cavity wall of the fixed ring through rollers.

4. The output assembly with a torque sensor according to claim 3, characterized in that: The top of the inner moving ring outer flange is connected to the top of the inner cavity wall of the fixed ring through a first transverse roller; the bottom of the inner moving ring outer flange is connected to the bottom of the inner cavity wall of the fixed ring through a second transverse roller; the inner side wall of the inner moving ring outer flange is connected to the inner cavity side wall of the fixed ring through a first radial roller.

5. The output assembly with a torque sensor according to claim 4, characterized in that: The top of the outer moving ring extension flange is connected to the top of the outer cavity wall of the fixed ring through the third transverse roller; the bottom of the outer moving ring extension flange is connected to the bottom of the outer cavity wall of the fixed ring through the fourth transverse roller; the inner side wall of the outer moving ring extension flange is connected to the outer cavity side wall of the fixed ring through the second radial roller.

6. The output assembly with a torque sensor according to claim 3, characterized in that: The fixing ring comprises: A first fixing ring, the longitudinal cross section of which is T-shaped; The second fixing ring is in the shape of a flat circular ring. The bottom of the second fixing ring is connected to the housing of the power input device. The first fixing ring is installed on the second fixing ring to form an I-shaped structure.

7. The output assembly with a torque sensor according to claim 6, characterized in that: The first fixing ring and the second fixing ring are fixed up and down by a first bolt; and the fixing ring is fixed to the housing of the power input device by a second bolt.

8. The output assembly with a torque sensor according to claim 3, characterized in that: The top of the inner moving ring is connected to the input inner ring through an inner ring bolt, and the input inner ring is rotatably connected to the fixed ring through an annular guide rail; the top of the outer moving ring is connected to the output outer ring through an outer ring bolt.

9. The output assembly with a torque sensor according to claim 5, characterized in that: The first transverse roller and the second transverse roller are symmetrically arranged in the vertical direction, and the third transverse roller and the fourth transverse roller are symmetrically arranged in the vertical direction.

10. The output assembly with a torque sensor according to claim 5, characterized in that: The first radial roller and the second radial roller are symmetrically arranged inside and outside, the first transverse roller and the third transverse roller are symmetrically arranged inside and outside, and the second transverse roller and the fourth transverse roller are symmetrically arranged inside and outside.

Images