Swing mechanism angle detection device and trolley

Abstract

The utility model discloses a slewing mechanism angle detection device and a trolley. The slewing mechanism angle detection device comprises a slewing assembly arranged on a frame, a slewing angle encoder, a first gear, a second gear and a mounting seat, the first gear is arranged on the rotary assembly, the mounting seat is arranged on the frame, the rotary angle encoder is arranged on the mounting seat, the second gear is connected to the rotary input end of the rotary angle encoder, and the first gear is meshed with the second gear; and the assembly position of the mounting seat on the frame is adjustable so as to eliminate the assembly error between the first gear and the second gear. The angle measuring device is applied to the field of angle measurement, can accurately measure the rotation amount of the slewing mechanism, does not need to depend on the operation technology of an operator, and improves the accuracy and safety of construction operation.

Description

Technical Field

[0001] The utility model relates to the technical field of angle measurement, in particular to a rotary mechanism angle detection device and a trolley. Background Art

[0002] The crank arm of the drilling rig is mostly installed on the frame through a slewing mechanism. At present, most drilling rigs do not have a separate angle detection mechanism to detect the slewing angle of the crank arm. Instead, the operator relies on visual observation at the construction site and uses a remote control to manually control the rotation of the slewing mechanism. This method is not accurate in slewing angle control and is highly dependent on the operator's operating skills. The operator's working environment is not safe and has certain safety hazards. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a slewing mechanism angle detection device and a trolley, which can accurately measure the rotation amount of the slewing mechanism without relying on the operating skills of the operator, thereby improving the accuracy and safety of construction operations.

[0004] To achieve the above-mentioned purpose, the utility model provides a slewing mechanism angle detection device, comprising a slewing assembly arranged on a frame, a slewing angle encoder, a first gear, a second gear and a mounting seat;

[0005] The first gear is arranged on the rotary assembly, the mounting seat is arranged on the frame, the rotary angle encoder is arranged on the mounting seat, the second gear is connected to the rotation input end of the rotary angle encoder, and the first gear is meshed with the second gear;

[0006] The assembly position of the mounting seat on the frame is adjustable to eliminate the assembly error between the first gear and the second gear.

[0007] In one embodiment, a waist-shaped hole is provided on the mounting seat or the frame, and the mounting seat and the frame are assembled and fixed by bolts through the waist-shaped hole.

[0008] In one embodiment, a support member is rotatably connected to the mounting seat, and the rotation angle encoder is arranged on the support member;

[0009] An adjustment mechanism is provided between the support member and the mounting seat or the vehicle frame, so that the support member has a tendency to rotate relative to the mounting seat, thereby eliminating the meshing clearance between the first gear and the second gear.

[0010] In one embodiment, the support member includes a support plate and a rotary shaft;

[0011] The rotary shaft is rotatably matched with the mounting seat, the support plate is fixedly connected to the top of the rotary shaft, and the rotary angle encoder is arranged on the support plate.

[0012] In one embodiment, the slewing mechanism angle detection device further comprises a bearing, and a slewing hole is provided on the mounting seat;

[0013] The outer ring of the bearing is fixedly connected to the hole wall of the rotary hole, and the rotary shaft is fixedly connected to the inner ring of the bearing.

[0014] In one embodiment, the rotary mechanism angle detection device further includes a limiter, the rotary shaft includes a coaxial first shaft body and a second shaft body, and the diameter of the first shaft body is greater than that of the second shaft body;

[0015] The first shaft is fixedly connected to the inner ring of the bearing, the first end of the second shaft is connected to the top end of the first shaft, and the support plate is connected to the second end of the second shaft;

[0016] One end of the limiting member is connected to the mounting seat or the vehicle frame, and the other end is located above the top end of the first shaft.

[0017] In one embodiment, the adjustment mechanism is a spring disposed between the support member and the mounting seat or the frame.

[0018] In one embodiment, the gear radius of the first gear is larger than that of the second gear.

[0019] In one embodiment, the swivel assembly includes a swivel sleeve located in the frame and a swivel table located on the top of the frame;

[0020] The first gear is arranged on the rotating platform, and the rotation angle encoder and the mounting seat are both located on the top of the frame; or

[0021] The first gear is arranged on the rotary sleeve, and the rotary angle encoder and the mounting seat are both located inside the vehicle frame.

[0022] In order to achieve the above-mentioned purpose, the utility model also provides a trolley, on which the above-mentioned rotary mechanism angle detection device is provided.

[0023] Compared with the prior art, the utility model has the following beneficial technical effects:

[0024] 1. The utility model provides a first gear on the rotary assembly, and provides a second gear meshing with the first gear on the rotary input end of the rotary angle encoder. When the rotary assembly rotates, the first gear drives the second gear to rotate, thereby driving the rotary input end of the rotary angle encoder to rotate, thereby accurately measuring the rotation amount of the rotary mechanism without relying on the operating skills of the operator, thereby improving the accuracy and safety of the construction operation;

[0025] 2. The slewing mechanism angle detection device of the utility model can eliminate the cumulative assembly error when the first gear and the second gear are installed, and reduce the influence on the gear meshing center distance by designing the assembly position of the mounting seat on the frame to be adjustable;

[0026] 3. In the preferred embodiment of the utility model, the rotary angle encoder is rotatably connected to the mounting seat through a support, and the meshing center distance error is eliminated through an adjustment mechanism, so that the tooth surfaces of the first gear and the second gear are always kept close to eliminate the gap between the teeth, and the meshing accuracy is ensured to meet the angle measurement requirements;

[0027] 4. In the preferred embodiment of the present invention, the gear radius of the first gear is set to be larger than that of the second gear, thereby converting the large number of rotations of the rotating component into the small number of rotations of the second gear, thereby improving the detection accuracy of the rotation angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 This is a schematic diagram of the overall structure of the rotary mechanism angle detection device in Example 1 of the utility model;

[0030] Figure 2 This is a partial structural diagram of the rotary mechanism angle detection device in Embodiment 1 of the present utility model;

[0031] Figure 3 This is a partial structural diagram of the rotary mechanism angle detection device in Embodiment 2 of the present utility model;

[0032] Figure 4 It is a partial structural cross-sectional view of the rotary mechanism angle detection device in Embodiment 2 of the present utility model;

[0033] Figure 5 It is a cross-sectional view of the rotary mechanism angle detection device in Example 3 of the utility model.

[0034] Figure numbers: frame 1, rotation angle encoder 2, first gear 3, second gear 4, mounting seat 5, turntable 6, waist-shaped hole 7, support plate 8, rotating shaft 9, bearing 10, limiter 11, spring 12, rotating sleeve 13.

[0035] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] Example 1

[0042] like Figure 1 , Figure 2 The present embodiment shows a rotary mechanism angle detection device, which mainly includes a rotary assembly arranged on a frame 1, a rotary angle encoder 2, a first gear 3, a second gear 4 and a mounting seat 5, wherein the rotary assembly includes a rotary sleeve located in the frame 1 and a rotary table 6 located on the top of the frame 1. In the present embodiment, the first gear 3 is fixedly assembled on the outer wall of the rotary table 6 by fasteners such as bolts, the mounting seat 5 is mounted on the frame 1, the rotary angle encoder 2 is mounted on the mounting seat 5, and the second gear 4 is fixed on the rotation input end of the rotary angle encoder 2 by key connection. The first gear 3 is meshed with the second gear 4, so when the rotary assembly rotates, the first gear 3 drives the second gear 4 to rotate, thereby driving the rotation input end of the rotary angle encoder 2 to rotate, and then accurately measuring the rotation amount of the rotary mechanism, without relying on the operating skills of the operator, improving the accuracy and safety of the construction operation.

[0043] In this embodiment, the assembly position of the mounting seat 5 on the frame 1 is adjustable, that is, the position of the second gear 4 on the frame 1 is adjustable, thereby effectively eliminating the cumulative assembly error between the first gear 3 and the second gear 4, and avoiding the influence of the cumulative error on the gear meshing accuracy causing inaccurate angle detection. In the specific implementation process, a waist-shaped hole 7 is provided on the mounting seat 5 or the frame 1, and the mounting seat 5 and the frame 1 are assembled and fixed by the waist-shaped hole 7 and the bolts. By changing the matching position of the bolt and the waist-shaped hole 7, the assembly position of the mounting seat 5 on the frame 1 can be adjusted.

[0044] It is worth noting that, in the specific application process, it is not limited to using the waist-shaped hole 7 to change the assembly position of the mounting seat 5 on the frame 1. Multiple mounting seat 5 fixing positions can also be arranged on the frame 1, for example, multiple groups of bolt holes can be arranged. By selectively installing the mounting seat 5 at different positions, the assembly position of the mounting seat 5 on the frame 1 can also be adjusted.

[0045] As a preferred embodiment, the gear radius of the first gear 3 is greater than that of the second gear 4, so that there is a speed ratio between the first gear 3 and the second gear 4, so that the large number of rotations of the rotating component can be converted into the small number of rotations of the second gear 4. After the rotation angle encoder 2 measures the amplified angle, it is converted into the actual rotation angle of the rotating component through the speed ratio. Compared with the proportional measurement of the rotation angle of the rotating component, it has higher measurement accuracy.

[0046] It is worth noting that, since the rotary assembly on the trolley often does not need to achieve 360° rotation, the first gear 3 does not need to be set as a ring-shaped whole in the specific implementation process, but only needs to be set as an arc-shaped rack, thereby reducing costs. In addition, the rotary angle encoder 3 in this embodiment can adopt a conventional model on sale, so this embodiment will not repeat its implementation structure and measurement principle.

[0047] Example 2

[0048] This embodiment discloses a slewing mechanism angle detection device, and its implementation method is basically the same as that of Embodiment 1, except that: a support member is rotatably connected to the mounting seat 5 in this embodiment, a slewing angle encoder 2 is arranged on the support member, and an adjustment mechanism is provided between the support member and the mounting seat 5 or the frame 1, so that the support member has a tendency to rotate relative to the mounting seat 5, that is, the second gear 4 is continuously pressed against the first gear 3, thereby eliminating the meshing gap between the first gear 3 and the second gear 4.

[0049] refer to Figure 3 The support member includes a support plate 8 and a rotary shaft 9 which are welded and fixed, the rotary shaft 9 is rotatably matched with the mounting seat 5, the support plate 8 is fixedly connected to the top of the rotary shaft 9, and the rotary angle encoder 2 is arranged on the support plate 8. Preferably, a rotary hole is opened on the mounting seat 5, a bearing 10 is arranged in the rotary hole, the outer ring of the bearing 10 is fixedly connected to the hole wall of the rotary hole through interference fit, and the outer wall of the rotary shaft 9 is fixedly connected to the inner ring of the bearing 10, so that the support member can rotate smoothly relative to the mounting seat 5 to avoid jamming.

[0050] Further preferably, the rotary shaft 9 includes a first shaft body and a second shaft body which are coaxial, and the diameter of the first shaft body is larger than that of the second shaft body, that is, there is a step structure between the first shaft body and the second shaft body. The side wall of the first shaft body is fixedly connected to the inner ring of the bearing 10 by interference fit, the first end of the second shaft body is connected to the top of the first shaft body, and the support plate 8 is connected to the second end of the second shaft body. A limiter 11 is provided on the frame 1 or the mounting seat 5, one end of the limiter 11 is connected to the mounting seat 5 or the frame 1, and the other end is located above the top of the first shaft body to prevent the support member from being disengaged from the mounting seat 5 due to vibration or other reasons during operation or movement of the machine. Specifically in this embodiment, the limiter 11 is an annular plate-like structure, the inner diameter of which is smaller than the first shaft body and larger than the second shaft body. The limiter 11 is installed on the mounting seat 5 by bolts, and the inner ring edge of the limiter 11 covers the step structure on the rotary shaft 9, so as to achieve the limit of the support member. In a specific application process, a strip plate may be directly used as the limiting member 11 to also achieve the limiting of the supporting member.

[0051] refer to Figure 4 , the adjustment mechanism is a spring 12 disposed between the support member and the mounting seat 5 or the frame 1, wherein the spring 12 can be set to a pre-tensioned state or a pre-compressed state. Under the elastic force of the spring 12, the support member always has a tendency to rotate relative to the mounting seat 5, that is, the second gear 4 is continuously pressed against the first gear 3, thereby eliminating the meshing clearance between the first gear 3 and the second gear 4. It is worth noting that in the specific application process, the coil spring sleeved on the second shaft body can also be used as the adjustment mechanism, for example, the coil spring is in a pre-compressed state, and a stop rod is respectively disposed at the top of the mounting seat 5 and the bottom of the support plate 8 to abut the two ends of the coil spring. Since the stop rod on the mounting seat 5 is always fixed, the coil spring always has a tendency to restore to a free state, thereby making the support member always have a tendency to rotate relative to the mounting seat 5.

[0052] Example 3

[0053] This embodiment discloses a rotary mechanism angle detection device, and its implementation is basically the same as that of the embodiment 1, except that: the first gear 3 in this embodiment is arranged on the rotary sleeve 13, and the rotary angle encoder 2 and the mounting seat 5 are both located inside the frame 1, that is, Figure 5 As shown, the internal space of the vehicle frame 1 is fully utilized.

[0054] Example 4

[0055] This embodiment discloses a trolley, on which is provided the slewing mechanism angle detection device in Embodiment 1, Embodiment 2 or Embodiment 3, wherein the trolley can be a rock drilling trolley, an anchor trolley or the like.

[0056] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A slewing mechanism angle detection device, comprising a slewing assembly arranged on a frame, characterized in that: It also includes a rotary angle encoder, a first gear, a second gear and a mounting seat; The first gear is arranged on the rotary assembly, the mounting seat is arranged on the frame, the rotary angle encoder is arranged on the mounting seat, the second gear is connected to the rotation input end of the rotary angle encoder, and the first gear is meshed with the second gear; The assembly position of the mounting seat on the frame is adjustable to eliminate the assembly error between the first gear and the second gear.

2. The rotary mechanism angle detection device according to claim 1, characterized in that: The mounting seat or the frame is provided with a waist-shaped hole, and the mounting seat and the frame are assembled and fixed by bolts through the waist-shaped hole.

3. The rotary mechanism angle detection device according to claim 1, characterized in that: A support member is rotatably connected to the mounting seat, and the rotation angle encoder is arranged on the support member; An adjustment mechanism is provided between the support member and the mounting seat or the vehicle frame, so that the support member has a tendency to rotate relative to the mounting seat, thereby eliminating the meshing clearance between the first gear and the second gear.

4. The rotary mechanism angle detection device according to claim 3, characterized in that: The support member includes a support plate and a rotary shaft; The rotary shaft is rotatably matched with the mounting seat, the support plate is fixedly connected to the top of the rotary shaft, and the rotary angle encoder is arranged on the support plate.

5. The rotary mechanism angle detection device according to claim 4, characterized in that: It also includes a bearing, and a swivel hole is provided on the mounting seat; The outer ring of the bearing is fixedly connected to the hole wall of the rotary hole, and the rotary shaft is fixedly connected to the inner ring of the bearing.

6. The rotary mechanism angle detection device according to claim 5, characterized in that: It also includes a stopper, wherein the rotary shaft includes a first shaft body and a second shaft body which are coaxial, and the diameter of the first shaft body is larger than that of the second shaft body; The first shaft is fixedly connected to the inner ring of the bearing, the first end of the second shaft is connected to the top end of the first shaft, and the support plate is connected to the second end of the second shaft; One end of the limiting member is connected to the mounting seat or the vehicle frame, and the other end is located above the top end of the first shaft.

7. The rotary mechanism angle detection device according to any one of claims 3 to 6, characterized in that: The adjustment mechanism is a spring arranged between the support member and the mounting seat or the frame.

8. The rotary mechanism angle detection device according to any one of claims 1 to 6, characterized in that: The gear radius of the first gear is greater than that of the second gear.

9. The rotary mechanism angle detection device according to any one of claims 1 to 6, characterized in that: The slewing assembly includes a slewing sleeve located in the frame and a slewing platform located on the top of the frame; The first gear is arranged on the rotating platform, and the rotation angle encoder and the mounting seat are both located on the top of the frame; or The first gear is arranged on the rotary sleeve, and the rotary angle encoder and the mounting seat are both located inside the vehicle frame.

10. A trolley, characterized in that: The trolley is provided with a rotary mechanism angle detection device as described in any one of claims 1 to 9.

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