Chain tensioning and locking mechanism for an apron conveyor

Abstract

The utility model discloses a kind of chain locking mechanism of scraper conveyor, including permanent magnet motor and the integrated speed reducer connected therewith, integrated speed reducer is integrated with one-stage planetary carrier gear ring, mounting seat and transmission shaft installed on mounting seat are installed on integrated speed reducer, the butt gear is rotatably installed on transmission shaft, the butt gear is engaged with one-stage planetary carrier gear ring, brake boss disc is fixed on the butt gear;Brake groove disc is slidably installed on transmission shaft, the limiting portion that brake groove disc is equipped with rotation stop relative to mounting seat;Mounting seat is equipped with connecting plate and the buffer structure installed on connecting plate, buffer structure is connected with brake groove disc, electric cylinder is equipped on mounting seat, the connecting rod of electric cylinder is connected with connecting plate;By changing the stop structure improvement to gear in speed reducer, non-site operation can be realized, and operation convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to scraper conveyor tight chain mechanism technical field especially relates to a scraper conveyor's tight chain locking mechanism. BACKGROUND

[0002] The power of the scraper conveyor is transmitted through the transmission chain, and the transmission chain will be loose after running for a period of time, so the transmission chain needs to be tensioned, generally integrating the permanent magnet motor and the planetary reducer connected with the permanent magnet motor in the scraper conveyor, the transmission chain is tensioned by the permanent magnet motor driving the novel reducer, that is, the rotation direction of the permanent magnet motor is actually opposite to the power mechanism of the scraper conveyor, specifically, the planetary reducer is connected with the tensioning sprocket to realize transmission when tensioning adjustment is carried out, and the planetary reducer needs to be stopped after tensioning adjustment to avoid being reversed by the power mechanism of the scraper conveyor.

[0003] The existing stop structure mainly stops the gear in the planetary reducer through manual operation, which needs to be operated on site, and the operation convenience is not high. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a scraper conveyor's tight chain locking mechanism, which improves the stop structure of the gear in the reducer, realizes non-site operation and improves the operation convenience.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A scraper conveyor's tight chain locking mechanism, comprising a permanent magnet motor and an integrated reducer connected therewith, the integrated reducer is integrated with a primary planetary carrier gear ring, an installation seat and a transmission shaft installed on the installation seat are installed on the integrated reducer, a docking gear is rotatably installed on the transmission shaft, the docking gear is engaged with the primary planetary carrier gear ring, a brake boss disc is fixed on the docking gear, a brake groove disc is slidably installed on the transmission shaft, a limiting portion that is rotationally stopped relative to the installation seat is arranged on the brake groove disc, a connecting plate and a buffer structure installed on the connecting plate are arranged on the installation seat, the buffer structure is connected with the brake groove disc, an electric cylinder is arranged on the installation seat, and the extension rod of the electric cylinder is connected with the connecting plate.

[0007] Preferably, the buffer structure comprises a screw that is spaced apart and slidably installed on the connecting plate, the screw is fastened with the brake groove disc, a buffer spring is sleeved on the screw, and the two ends of the buffer spring are respectively abutted on the connecting plate and the brake groove disc.

[0008] Preferably, the brake boss disc comprises a first disc body, and the first disc body is spaced apart and uniformly distributed with bosses in the circumferential direction.

[0009] Preferably, the brake groove disc comprises a second disc body, limit grooves are arranged on the second disc body at intervals and are uniformly distributed in the circumferential direction, and the protrusions are matched with the shapes of the limit grooves; and the limit portions are respectively arranged on both sides of the second disc body and extend outward.

[0010] Preferably, a through groove is arranged on the mounting seat and exposes the abutting gear, fixing seats are arranged on the mounting seat at intervals and are located on both sides of the through groove, and the transmission shaft is fixed on the two fixing seats.

[0011] Preferably, a bearing is arranged on the transmission shaft, and the abutting gear is arranged on the bearing.

[0012] Preferably, a protective shell is arranged on the mounting seat.

[0013] Preferably, a proximity switch is further arranged on the brake protrusion disc or the brake groove disc, and the proximity switch is used for detecting the abutting distance between the brake protrusion disc and the brake groove disc.

[0014] Beneficial effects:

[0015] By arranging the mounting seat on the integral speed reducer, the abutting gear is arranged on the transmission shaft and is engaged with the primary planetary carrier gear ring in the integral speed reducer after the transmission shaft is arranged, and the brake protrusion disc is fixed on the abutting gear; the brake groove disc is arranged on the transmission shaft in a sliding mode and is connected to the telescopic rod of the electric cylinder through the connecting plate and the buffer structure, the electric cylinder is connected with the control system of the scraper conveyor to realize remote control; when the chain needs to be tightened, the brake groove disc is separated from the brake protrusion disc by the electric cylinder, and the primary planetary carrier gear ring can rotate at this time; after the tightening operation is completed, the brake groove disc is matched with the brake protrusion disc by the electric cylinder, and the brake groove disc is braked on the primary planetary carrier gear ring under the rotation limiting effect of the limiting portion of the brake groove disc on the mounting seat.

[0016] The buffer structure is arranged to form buffer adjustment during the matching process of the brake groove disc and the brake protrusion disc, until the brake groove disc and the brake protrusion disc are completely matched. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 FIG. 4 is a structural schematic diagram of the utility model embodiment in which the protective shell is disassembled;

[0019] Figure 3 FIG. 5 is a structural schematic diagram of the brake protrusion disc in the utility model embodiment;

[0020] Figure 4 FIG. 6 is a structural schematic diagram of the brake groove disc in the utility model embodiment;

[0021] Figure 5 It is a structural schematic view of the integral speed reducer in the embodiment of the utility model;

[0022] In Figures 1 to 5 In the embodiment of the utility model, the correspondence between the component names or lines and the figure numbers is as follows:

[0023] Integral speed reducer 1, primary planetary carrier gear 2, mounting seat 3, transmission shaft 4, butt joint gear 5, brake boss disc 6, first disc body 61, protruding block 62, brake recess disc 7, second disc body 71, limiting groove 72, limiting part 8, connecting plate 9, electric cylinder 10, screw 11, buffer spring 12, through groove 13, fixing seat 14, protective shell 15. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0025] Referring to Figures 1-5 The embodiment of the utility model provides a chain tightening locking mechanism of a scraper conveyor, which comprises a permanent magnet motor and an integral speed reducer 1 connected with the permanent magnet motor. The integral speed reducer 1 is internally integrated with a primary planetary carrier gear 2. When the chain tightening operation is performed, the permanent magnet motor and the integral speed reducer 1 are used to realize the transmission of the tensioning power. After the chain tightening operation is completed, the integral speed reducer 1 needs to be braked to avoid the reverse rotation. Specifically, a mounting seat 3 is mounted on the integral speed reducer 1, and a transmission shaft 4 is mounted on the mounting seat 3. A butt joint gear 5 is rotatably mounted on the transmission shaft 4. The butt joint gear 5 is engaged with the primary planetary carrier gear 2. A brake boss disc 6 is fixed on the butt joint gear 5. A brake recess disc 7 is slidably mounted on the transmission shaft 4. The brake recess disc 7 is provided with a limiting part 8 which is rotationally stopped relative to the mounting seat 3. After the brake recess disc 7 is engaged with the brake boss disc 6, the limiting part 8 is rotationally stopped on the mounting seat 3, so that the butt joint gear 5, the brake boss disc 6 and the brake recess disc 7 are braked relative to the mounting seat 3, thereby forming the brake for the primary planetary carrier gear 2.

[0026] Specifically, a connecting plate 9 is arranged on the mounting base 3, and a buffering structure is arranged on the connecting plate 9 and connected with the brake groove disc 7. An electric cylinder 10 is arranged on the mounting base 3, and the telescopic rod of the electric cylinder 10 is connected with the connecting plate 9. The electric cylinder 10 is used to adjust the position of the brake groove disc 7. Generally, when the brake is released, the electric cylinder 10 pulls the brake groove disc 7 to separate from the brake boss disc 6, and when the brake is applied, the electric cylinder 10 pushes the brake groove disc 7 to engage with the brake boss disc 6. Since the engagement process may not be exactly aligned, the buffering structure is used to buffer during the engagement process until the brake is completely engaged.

[0027] The buffering structure includes a screw 11 which is slidably arranged on the connecting plate 9 and is fastened to the brake groove disc 7. A buffering spring 12 is arranged on the screw 11, and the two ends of the buffering spring 12 are abutted on the connecting plate 9 and the brake groove disc 7, respectively. The buffering spring 12 is used to buffer during the engagement of the brake groove disc 7 and the brake boss disc 6, and the brake groove disc 7 is gradually pressed to the completely engaged state during the dynamic adjustment of the relative engagement state.

[0028] Specifically, the brake boss disc 6 includes a first disc body 61, and the first disc body 61 is arranged with protrusions 62 which are uniformly distributed along the circumferential direction. The protrusions 62 are used to form the rotation stop function. The brake groove disc 7 includes a second disc body 71, and the second disc body 71 is arranged with limiting grooves 72 which are uniformly distributed along the circumferential direction. The shapes of the protrusions 62 and the limiting grooves 72 are matched. The limiting portions 8 are arranged on both sides of the second disc body 71 and extend outward. The protrusions 62 and the limiting grooves 72 are engaged after mutual cooperation, and the limiting portions 8 form the rotation limiting position of the second disc body 71 relative to the mounting base 3. The protrusions 62 and the limiting grooves 72 bear the rotation limiting force, and have a certain cooperation thickness. The structure can be fan-shaped to improve the structural strength.

[0029] Meanwhile, a through groove 13 is arranged on the mounting base 3 and exposes the butt gear 5. Fixed seats 14 are arranged on both sides of the through groove 13. The transmission shaft 4 is fixed on the two fixed seats 14. Bearings are arranged on the transmission shaft 4, and the butt gear 5 is arranged on the bearings. The butt gear 5 is stably rotated relative to the transmission shaft 4.

[0030] Specifically, a protective shell 15 is arranged on the mounting base 3 to protect the internal devices.

[0031] Specifically, in order to further detect the engagement state of the brake convex disc 6 and the brake concave disc 7, in the case that the engagement is still not complete during the buffering, a certain angle rotation is realized by controlling the permanent magnet motor to ensure complete engagement, and specifically, a proximity switch is arranged on the brake convex disc 6 or the brake concave disc 7, the proximity switch is used for detecting the fitting distance between the brake convex disc 6 and the brake concave disc 7, the proximity switch is a prior art and can be embedded in the corresponding limiting groove 72, and the depth of the protrusion 62 relative to the limiting groove 72 is detected, of course, this structure is mainly for further detection of the engagement state, so as to ensure the engagement state and avoid the risk of disengagement in the case of incomplete engagement.

[0032] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the description of the present application, it should be pointed out that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the product of the present application is used, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a specific orientation, structure and operation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for description, and cannot be understood as indicating or implying relative importance.

[0034] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A chain tension locking mechanism of a scraper conveyor, comprising a permanent magnet motor and an integrated reducer (1) connected therewith, wherein a first planetary carrier gear (2) is integrated in the integrated reducer (1), characterized in that: an installation seat (3) is installed on the integrated reducer (1), and a transmission shaft (4) is installed on the installation seat (3), wherein a butt gear (5) is rotatably installed on the transmission shaft (4), the butt gear (5) is engaged with the first planetary carrier gear (2), and a brake boss disc (6) is fixed on the butt gear (5); a brake groove disc (7) is slidably installed on the transmission shaft (4), wherein a limiting portion (8) for rotation stopping relative to the installation seat (3) is arranged on the brake groove disc (7); a connecting plate (9) is arranged on the installation seat (3), and a buffer structure is installed on the connecting plate (9), wherein the buffer structure is connected with the brake groove disc (7), an electric cylinder (10) is arranged on the installation seat (3), and a telescopic rod of the electric cylinder (10) is connected with the connecting plate (9). The buffer structure comprises a screw (11) which is slidably installed on the connecting plate (9) and is tightly connected with the brake groove disc (7), a buffer spring (12) is sleeved on the screw (11), and two ends of the buffer spring (12) are respectively abutted on the connecting plate (9) and the brake groove disc (7).

2. A chain tensioning and locking mechanism for an apron conveyor as claimed in claim 1, characterized in that The brake boss disc (6) comprises a first disc body (61), wherein a plurality of lugs (62) which are uniformly distributed in a circumferential direction are arranged on the first disc body (61).

3. The chain tensioning and locking mechanism of the flight conveyor according to claim 1, characterized in that: The brake groove disc (7) comprises a second disc body (71), wherein a plurality of limiting grooves (72) which are uniformly distributed in a circumferential direction are arranged on the second disc body (71), and the lugs (62) are matched with the limiting grooves (72) in shape.

4. A chain tensioning and locking mechanism for an apron conveyor as claimed in claim 3, characterized in that: The limiting portions (8) are respectively arranged on both sides of the second disc body (71) and extend outward. A through groove (13) which exposes the butt gear (5) is arranged on the installation seat (3), a fixing seat (14) is arranged on the installation seat (3) and located on both sides of the through groove (13), and the transmission shaft (4) is fixed on the two fixing seats (14).

5. The chain tensioning and locking mechanism of an apron conveyor according to any one of claims 1 to 4, characterized in that: A bearing is installed on the transmission shaft (4), and the butt gear (5) is installed on the bearing.

6. A chain tensioning and locking mechanism for an apron conveyor as claimed in claim 5, characterized in that: A protective shell (15) is arranged on the installation seat (3).

7. A chain tensioning and locking mechanism for an apron conveyor as claimed in claim 6, characterized in that: A proximity switch is arranged on the brake boss disc (6) or the brake groove disc (7), and the proximity switch is used for detecting a fitting distance between the brake boss disc (6) and the brake groove disc (7).

8. A chain tensioning and locking mechanism for an apron conveyor as claimed in claim 7, characterized in that: ​

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