Sliding type rotation detection mechanism and trolley

Abstract

The utility model discloses a sliding type rotation detection mechanism and a trolley. The sliding type rotation detection mechanism comprises a rotation assembly arranged on a frame, a rotation angle encoder, a first gear, a second gear and a support. The first gear is arranged on the rotation assembly, the rotation angle encoder is arranged on the support, the second gear is connected to the rotation input end of the rotation angle encoder, and the first gear is meshed with the second gear; the support is slidably connected to the frame, and the sliding direction of the support is collinear with the center connecting line of the first gear and the second gear. The angle measuring device is applied to the field of angle measurement, can effectively eliminate accumulated assembly errors when the gear is installed, accurately measures 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 sliding rotary detection mechanism 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 sliding type rotary detection mechanism and a trolley, which can accurately measure 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.

[0004] To achieve the above-mentioned purpose, the utility model provides a sliding type rotation detection mechanism, comprising a rotation assembly arranged on a frame, a rotation angle encoder, a first gear, a second gear and a support;

[0005] The first gear is arranged on the rotary assembly, the rotary angle encoder is arranged on the support, 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 support is slidably connected to the frame, and a sliding direction of the support is colinear with a center line connecting the first gear and the second gear.

[0007] In one embodiment, a driving mechanism is provided between the support and the frame so that the support has a tendency to slide toward the direction approaching the slewing assembly.

[0008] In one embodiment, the driving mechanism is a pre-stretched spring;

[0009] One end of the spring is connected to the support, and the other end is connected to the frame, and the spring is located between the support and the slewing assembly.

[0010] In one embodiment, the driving mechanism is a pre-compressed spring;

[0011] One end of the spring is connected to the support, and the other end is connected to the frame, and the support is located between the spring and the rotating assembly.

[0012] In one embodiment, a slide rail is fixedly provided on the frame, and the support is slidably connected to the slide rail.

[0013] In one embodiment, a protective cover with an opening at one end is provided on the support, and the opening of the protective cover faces the rotary assembly;

[0014] The rotation angle encoder and the second gear are both located in the protective cover.

[0015] 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;

[0016] The first gear is arranged on the rotating platform, and the rotation angle encoder and the support are both located on the top of the frame; or

[0017] The first gear is arranged on the rotary sleeve, and the rotary angle encoder and the support are both located inside 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 first gear is a rack with an arc-shaped structure.

[0020] In order to achieve the above-mentioned purpose, the utility model also provides a trolley, on which the above-mentioned sliding rotation detection mechanism is provided.

[0021] Compared with the prior art, the utility model has the following beneficial technical effects:

[0022] 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;

[0023] 2. The utility model can eliminate the cumulative assembly error when the first gear and the second gear are installed by slidingly connecting the support to the frame, thereby reducing the influence on the gear meshing center distance;

[0024] 3. In the preferred embodiment of the utility model, the drive mechanism is provided so that the support has a tendency to slide toward the direction close to the rotary assembly, so that the first gear and the second gear always keep the tooth surfaces close to each other, eliminate the gap between the teeth, and ensure that the meshing accuracy meets the angle measurement requirements;

[0025] 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 structure into the small number of rotations of the second gear, thereby improving the detection accuracy of the rotation angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] Figure 1 This is a schematic diagram of the overall structure of the sliding type rotation detection mechanism in Example 1 of the utility model;

[0028] Figure 2 It is a schematic diagram of the partial structure of the sliding rotation detection mechanism in Example 1 of the utility model.

[0029] Reference numerals: frame 1, rotary assembly 2, rotary angle encoder 3, first gear 4, second gear 5, support 6, driving mechanism 7, slide rail 8, protective cover 9.

[0030] 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

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] like Figure 1 , Figure 2 The sliding type rotary detection mechanism disclosed in this embodiment is shown, which mainly includes a rotary assembly 2 arranged on a frame 1, and a rotary angle encoder 3, a first gear 4, a second gear 5 and a support 6. Among them, the first gear 4 is fixedly assembled on the rotary assembly 2 by fasteners such as bolts, the rotary angle encoder 3 is fixedly installed on the support 6, and the second gear 5 is connected to the rotation input end of the rotary angle encoder 3 by key connection and the like. And the first gear 4 is meshed with the second gear 5, so when the rotary assembly 2 rotates, the first gear 4 drives the second gear 5 to rotate, thereby driving the rotary input end of the rotary angle encoder 3 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.

[0037] In this embodiment, the support 6 is slidably connected to the frame 1, and the sliding direction of the support 6 is colinear with the center line of the first gear 4 and the second gear 5. The support 6 is slidably connected to the frame 1 along the center line of the first gear 4 and the second gear 5, so that the center distance between the first gear 4 and the second gear 5 is adjustable, thereby effectively eliminating the cumulative assembly error between the first gear 4 and the second gear 5, and avoiding the influence of the cumulative error on the gear meshing accuracy causing inaccurate angle detection. In the specific implementation process, a plurality of pin holes can be arranged on the support 6 and the frame 1 along the center line of the first gear 4 and the second gear 5. Therefore, after the support 6 is slid to a suitable position, the support 6 is fixed to the frame 1 by the pin, so that the position of the support 6 can be manually adjusted to eliminate the cumulative assembly error.

[0038] As a preferred embodiment, a driving mechanism 7 is provided between the support 6 and the frame 1, so that the support 6 has a tendency to slide toward the direction close to the rotating assembly 2, even if the second gear 5 has a tendency to move toward the direction close to the first gear 4, so that the second gear 5 continues to press against the first gear 4, and the meshing clearance between the first gear 4 and the second gear 5 is automatically and real-time eliminated, ensuring that the meshing accuracy meets the angle measurement requirements.

[0039] In the specific implementation process, the driving mechanism 7 has multiple implementation modes, namely:

[0040] In the first embodiment, the driving mechanism 7 is a pre-stretched spring, in which one end of the spring is connected to the support 6, and the other end is connected to the frame 1, and the spring is located between the support 6 and the rotating assembly 2. Since the spring is in a pre-stretched state, it has a tendency to retract to a free state, thereby pulling the support 6 to move toward the rotating assembly 2, so that the second gear 5 continues to press against the first gear 4;

[0041] In the second embodiment, the driving mechanism 7 is a pre-compressed spring, one end of the spring is connected to the support 6, and the other end is connected to the frame 1, and the support 6 is located between the spring and the rotating assembly 2. Since the spring is in a pre-compressed state, it has a tendency to stretch to a free state, thereby pushing the support 6 to move in a direction close to the rotating assembly 2, so that the second gear 5 continues to press against the first gear 4;

[0042] In the third embodiment, the driving mechanism 7 can adopt a cylinder, one end of which is hinged to the frame 1 and the other end is hinged to the support 6. The cylinder is extended and retracted to drive the support 6 to slide, so that the second gear 5 continues to press against the first gear 4.

[0043] In a specific implementation process, a slide rail 8 is fixedly provided on the vehicle frame 1 , the support 6 is slidably connected to the slide rail 8 , and the spring serving as the driving mechanism 7 can be connected between the slide rail 8 and the support 6 .

[0044] As a preferred embodiment, a protective cover 9 with an opening at one end is provided on the support 6, and the opening of the protective cover 9 faces the rotary assembly 2. The rotary angle encoder 3 and the second gear 5 are both located in the protective cover 9 to prevent external flying objects from damaging the rotary angle encoder 3.

[0045] In this embodiment, the rotary assembly 2 includes a rotary sleeve located in the frame 1 and a rotary table located on the top of the frame 1. The first gear 4 is arranged on the rotary table. The rotary angle encoder 3 and the support 6 are both located on the top of the frame 1. Figure 1 Alternatively, the first gear 4 may be arranged on the rotary sleeve, and the rotary angle encoder 3 and the support 6 are both located inside the frame 1, thereby making full use of the internal space of the frame 1.

[0046] As a preferred embodiment, the gear radius of the first gear 4 is greater than that of the second gear 5, so that there is a speed ratio between the first gear 4 and the second gear 5, so that the large number of rotations of the rotating component 2 can be converted into the small number of rotations of the second gear 5. After the rotation angle encoder 3 measures the amplified angle, it is converted into the real rotation angle of the rotating component 2 through the speed ratio. Compared with the proportional measurement of the rotation angle of the rotating component 2, it has higher measurement accuracy.

[0047] It is worth noting that since the rotary assembly 2 on the trolley often does not need to achieve 360° rotation, the first gear 4 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.

[0048] Example 2

[0049] This embodiment discloses a trolley having the sliding rotary detection mechanism in Embodiment 1, wherein the trolley can be a rock drilling trolley or an anchor trolley, etc.

[0050] 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 sliding type rotation detection mechanism, comprising a rotation assembly arranged on a frame, characterized in that: It also includes a rotary angle encoder, a first gear, a second gear and a support; The first gear is arranged on the rotary assembly, the rotary angle encoder is arranged on the support, 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 support is slidably connected to the frame, and a sliding direction of the support is colinear with a center line connecting the first gear and the second gear.

2. The sliding type rotation detection mechanism according to claim 1, characterized in that: A driving mechanism is provided between the support and the frame so that the support has a tendency to slide toward the direction approaching the rotary assembly.

3. The sliding type rotation detection mechanism according to claim 2, characterized in that: The driving mechanism is a pre-stretched spring; One end of the spring is connected to the support, and the other end is connected to the frame, and the spring is located between the support and the slewing assembly.

4. The sliding type rotation detection mechanism according to claim 2, characterized in that: The driving mechanism is a pre-compressed spring; One end of the spring is connected to the support, and the other end is connected to the frame, and the support is located between the spring and the rotating assembly.

5. The sliding type rotation detection mechanism according to any one of claims 1 to 4, characterized in that: A slide rail is fixedly arranged on the frame, and the support is slidably connected to the slide rail.

6. The sliding type rotation detection mechanism according to any one of claims 1 to 4, characterized in that: The support is provided with a protective cover with an opening at one end, and the opening of the protective cover faces the rotary assembly; The rotation angle encoder and the second gear are both located in the protective cover.

7. The sliding type rotation detection mechanism according to any one of claims 1 to 4, 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 support 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 support are both located inside the frame.

8. The sliding type rotation detection mechanism according to any one of claims 1 to 4, characterized in that: The gear radius of the first gear is greater than that of the second gear.

9. The sliding type rotation detection mechanism according to any one of claims 1 to 4, characterized in that: The first gear is a rack with an arc-shaped structure.

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

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