CN212638846U

CN212638846U - Tensioning device for scraper conveyor

Info

Publication number: CN212638846U
Application number: CN202021224698.2U
Authority: CN
Inventors: 杨广明; 张小斌; 张进春; 吴春艳
Original assignee: Chongqing College of Electronic Engineering
Current assignee: Chongqing College of Electronic Engineering
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-03-02
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses a tensioning device for a scraper conveyor, which comprises a bottom plate arranged on a casing, wherein the middle part of the bottom plate is provided with a connecting hole, one side of the bottom plate is fixed with a supporting plate, the outer side of the supporting plate is fixedly welded with a first rib plate and a second rib plate, and the inner side of the supporting plate is also fixedly provided with a first connecting plate and a second connecting plate; install first locating lever in the backup pad of first connecting plate below, install the second locating lever in the backup pad of second connecting plate below, the one end of first locating lever passes through first nut locking behind the backup pad, the one end at the bracing piece is fixed to the other end of first locating lever, the one end of second locating lever passes and passes through second nut locking behind the backup pad, the other end at the bracing piece is fixed to the other end of second locating lever, the bracing piece sets up along the horizontal direction, the lower extreme of bracing piece is fixed on supporting steel plate. The utility model discloses the structure is solid, is convenient for install, and the later maintenance cost of equipment is also lower.

Description

Tensioning device for scraper conveyor

Technical Field

The utility model belongs to the technical field of electromechanical device and specifically relates to a overspeed device tensioner for scraper conveyor's part, especially one kind, belongs to scraper conveyor's overspeed device tensioner.

Background

The scraper conveyor is a conveyor which is dragged by a scraper chain and conveys bulk materials in a groove. In the current coal mining face, the scraper conveyor not only serves to convey coal and materials, but also serves as a running track of a coal mining machine, so that the scraper conveyor becomes an indispensable main device in the modern coal mining process. The scraper conveyor can keep continuous operation, and the production can be normally carried out. Otherwise, the whole coal face will be in a production stop state, so that the whole production is interrupted. At present, the chute of the scraper conveyor can be divided into a parallel type and an overlapped type according to the arrangement mode and the structure of the chute, and can be divided into 4 types of single chains, double-side chains, double-center chains and triple chains according to the number and the arrangement mode of the chains.

Generally, a scraper conveyor operates on the principle that an open chute is used as a receiving member for coal, gangue, materials, or the like, and a scraper is fixed to a chain (constituting a scraper chain) as a pulling member. After the transmission part of the machine head is started, the chain wheel on the shaft of the machine head is driven to rotate, so that the scraper chain circularly operates to drive the material to move along the chute until the material is unloaded at the machine head part, and the scraper chain circularly operates in a stepless closed manner by bypassing the chain wheel to finish the conveying of the material.

However, in the operation and use process, the problem that the existing tensioning device on the scraper conveyor is poor in stability is found, and because the equipment needs to work in a high-strength environment for a long time, the situation that the tensioning device on the equipment is loosened after the equipment is used for a period of time can be found, so that the shaking in the conveying process can be caused, and a large potential safety hazard also exists.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough among the prior art, the utility model discloses a main aim at solves the long-time tired problem that can appear becoming flexible after using of overspeed device tensioner on present scraper conveyor, and provides a overspeed device tensioner for scraper conveyor who has better operational reliability.

The technical scheme of the utility model: a tensioning device for a scraper conveyor is characterized by comprising a bottom plate installed on a machine shell, wherein a connecting hole for installing a transmission shaft is formed in the middle of the bottom plate, a supporting plate is fixed on one side of the bottom plate and is vertically arranged, a first rib plate and a second rib plate are fixedly welded on the outer side of the supporting plate, the first rib plate and the second rib plate are both of triangular structures, a first connecting plate and a second connecting plate are further fixedly arranged on the inner side of the supporting plate, and the first connecting plate and the second connecting plate are vertically arranged and distributed at two ends of the supporting plate; a first positioning rod is mounted on the supporting plate below the first connecting plate, a second positioning rod is mounted on the supporting plate below the second connecting plate, one end of the first positioning rod penetrates through the supporting plate and then is locked through a first nut, the other end of the first positioning rod is fixed at one end of the supporting rod, one end of the second positioning rod penetrates through the supporting plate and then is locked through a second nut, the other end of the second positioning rod is fixed at the other end of the supporting rod, the supporting rod is arranged along the horizontal direction, the lower end of the supporting rod is fixed on a supporting steel plate, the supporting steel plate is of a Z-shaped structure, the upper end of the supporting steel plate is fixed with the supporting rod through a first bolt, and the lower end of the supporting steel; a tensioning screw rod is further mounted in the middle of the supporting rod, one end of the tensioning screw rod is in threaded connection with the supporting rod, and the other end of the tensioning screw rod is positioned on the side face of the shell; a packing box is further mounted at an opening of the connecting hole, the packing box is composed of an annular shell and an annular upper cover, the shell is sleeved on the transmission shaft, the lower end of the shell is fixed on the bottom plate, a gasket is arranged between the shell and the transmission shaft, the upper cover is also sleeved on the transmission shaft, and the upper cover is arranged right above the gasket and is tightly attached to the gasket; the upper cover is provided with a bearing with a seat, the bearing with the seat is sleeved on the transmission shaft, and the upper part of the bearing with the seat is fixedly connected with the first connecting plate and the second connecting plate respectively.

In the present invention, the casing is a casing of a scraper conveyor, which belongs to the existing equipment, and the position and structure of the casing are generally known to those skilled in the art, so the position of the casing is not described in detail herein.

Preferably, a third nut is further sleeved on the tensioning screw rod. The tensioning screw rod is more conveniently positioned and locked through the third nut.

Optimally, the upper end face of the gasket is an inclined plane, and the lower end face of the upper cover is matched with the upper end face of the gasket. The utility model discloses cover the structure that has all adopted the inclined plane on gasket and upper cover, make the two laminate tightly more easily like this, simple to operate can not produce the gap moreover.

Optimally, a first reinforcing plate is connected between the first positioning rod and the supporting rod, a second reinforcing plate is connected between the second positioning rod and the supporting rod, the first reinforcing plate and the second reinforcing plate are of triangular structures and are arranged along the horizontal direction, and the first reinforcing plate and the second reinforcing plate are symmetrically arranged relative to the central axis of the tensioning screw rod. Here can strengthen the joint strength between locating lever and the bracing piece through the installation reinforcing plate for the structural stability of equipment is better.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a overspeed device tensioner structure is solid, can stand coal, waste rock or other materials dash, hit, pound, press the exogenic action such as, can adapt to the needs that coal face bottom plate is uneven, crooked lapse moreover, can bear the crooked of vertical or horizontal direction.

2. The machine body is short, is convenient to install, can be used as a track for the operation of the coal mining machine, can also be used as a fulcrum of the front section of the hydraulic support, and can reliably work under high strength for a long time.

3. Simple structure, dust flies upward and the polluted environment when can preventing to carry the material, and the later maintenance cost of equipment is also lower.

Drawings

Fig. 1 is a schematic structural diagram of the tensioning device for the scraper conveyor of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

In the figure, 1-casing, 2-bottom plate, 3-transmission shaft, 4-connecting hole, 5-backup pad, 6-first gusset, 7-second gusset, 8-first connecting plate, 9-second connecting plate, 10-first locating lever, 11-second locating lever, 12-first nut, 13-bracing piece, 14-second nut, 15-supporting steel plate, 16-first bolt, 17-second bolt, 18-tensioning screw, 19-packing box, 191-shell, 192-upper cover, 193-gasket, 20-seated bearing, 21-third nut, 22-first reinforcing plate, 23-second reinforcing plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1 and 2, the tensioning device for a scraper conveyor of the present invention comprises a bottom plate 2 installed on a casing 1, wherein a connecting hole 4 for installing a transmission shaft 3 is formed in the middle of the bottom plate 2, a supporting plate 5 is fixed on one side of the bottom plate 2, the supporting plate 5 is vertically arranged, a first rib plate 6 and a second rib plate 7 are welded and fixed on the outer side of the supporting plate 5, the first rib plate 6 and the second rib plate 7 are both triangular structures, a first connecting plate 8 and a second connecting plate 9 are also fixed on the inner side of the supporting plate 5, and the first connecting plate 8 and the second connecting plate 9 are both vertically arranged and distributed at two ends of the supporting plate 5; a first positioning rod 10 is mounted on the supporting plate 5 below the first connecting plate 8, a second positioning rod 11 is mounted on the supporting plate 5 below the second connecting plate 9, one end of the first positioning rod 10 penetrates through the supporting plate 5 and then is locked through a first nut 12, the other end of the first positioning rod 10 is fixed at one end of a supporting rod 13, one end of the second positioning rod 11 penetrates through the supporting plate 5 and then is locked through a second nut 14, the other end of the second positioning rod 11 is fixed at the other end of the supporting rod 13, the supporting rod 13 is arranged along the horizontal direction, the lower end of the supporting rod 13 is fixed on a supporting steel plate 15, the supporting steel plate 15 is of a Z-shaped structure, the upper end of the supporting steel plate 15 is fixed with the supporting rod 13 through a first bolt 16, and the lower end of the supporting steel plate 15 is fixed; a tensioning screw 18 is further mounted in the middle of the supporting rod 13, one end of the tensioning screw 18 is in threaded connection with the supporting rod 13, and the other end of the tensioning screw 18 is positioned on the side face of the machine shell 1; a packing box 19 is further installed at the opening of the connecting hole 4, the packing box 19 is composed of an annular shell 191 and an annular upper cover 192, the shell 191 is sleeved on the transmission shaft 3, the lower end of the shell 191 is fixed on the bottom plate 2, a gasket 193 is arranged between the shell 191 and the transmission shaft 3, the upper cover 192 is also sleeved on the transmission shaft 3, and the upper cover 192 is arranged right above the gasket 193 and is tightly attached to the gasket 193; a bearing with seat 20 is further arranged above the upper cover 192, the bearing with seat 20 is sleeved on the transmission shaft 3, and the upper part of the bearing with seat 20 is fixedly connected with the first connecting plate 8 and the second connecting plate 9 respectively.

Referring to fig. 1 and 2, a third nut 21 is further sleeved on the tensioning screw 18. The upper end surface of the gasket 193 is an inclined surface, and the lower end surface of the upper cover 192 is matched with the upper end surface of the gasket 193. A first reinforcing plate 22 is connected between the first positioning rod 10 and the support rod 13, a second reinforcing plate 23 is connected between the second positioning rod 11 and the support rod 13, the first reinforcing plate 22 and the second reinforcing plate 23 are both triangular structures and are arranged along the horizontal direction, and the first reinforcing plate 22 and the second reinforcing plate 23 are symmetrically arranged relative to the central axis of the tensioning screw 18.

The utility model discloses a tensioning device, during the installation directly with bottom plate and tensioning screw rod fix on the casing that corresponds can, the installation is very simple and convenient, then screw up the bolt and the nut that will correspond, accomplish promptly, stability after the installation is fine, difficult production is rocked, can work under high strength for a long time, is favorable to improve equipment's safety in utilization.

It should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and although the applicant has described the present invention in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions made on the technical solutions of the present invention can not be included in the spirit and scope of the technical solutions of the present invention, and all the modifications or equivalent substitutions should be included in the scope of the claims of the present invention.

Claims

1. The tensioning device for the scraper conveyor is characterized by comprising a bottom plate (2) installed on a machine shell (1), wherein a connecting hole (4) for installing a transmission shaft (3) is formed in the middle of the bottom plate (2), a supporting plate (5) is fixed on one side of the bottom plate (2), the supporting plate (5) is vertically arranged, a first rib plate (6) and a second rib plate (7) are fixedly welded on the outer side of the supporting plate (5), the first rib plate (6) and the second rib plate (7) are both of triangular structures, a first connecting plate (8) and a second connecting plate (9) are further fixed on the inner side of the supporting plate (5), and the first connecting plate (8) and the second connecting plate (9) are vertically arranged and distributed at two ends of the supporting plate (5); a first positioning rod (10) is arranged on a supporting plate (5) below a first connecting plate (8), a second positioning rod (11) is arranged on the supporting plate (5) below a second connecting plate (9), one end of the first positioning rod (10) penetrates through the supporting plate (5) and then is locked through a first nut (12), the other end of the first positioning rod (10) is fixed at one end of the supporting rod (13), one end of the second positioning rod (11) penetrates through the supporting plate (5) and then is locked through a second nut (14), the other end of the second positioning rod (11) is fixed at the other end of the supporting rod (13), the supporting rod (13) is arranged along the horizontal direction, the lower end of the supporting rod (13) is fixed on a supporting steel plate (15), the supporting steel plate (15) is of a Z-shaped structure, the upper end of the supporting steel plate (15) is fixed with the supporting rod (13) through a first bolt (16), the lower end of the supporting steel plate (15) is fixed with the bottom plate (2) through a second bolt (17); a tensioning screw (18) is further mounted in the middle of the supporting rod (13), one end of the tensioning screw (18) is in threaded connection with the supporting rod (13), and the other end of the tensioning screw (18) is positioned on the side face of the machine shell (1); a packing box (19) is further mounted at an opening of the connecting hole (4), the packing box (19) is composed of an annular shell (191) and an annular upper cover (192), the shell (191) is sleeved on the transmission shaft (3), the lower end of the shell (191) is fixed on the bottom plate (2), a gasket (193) is arranged between the shell (191) and the transmission shaft (3), the upper cover (192) is also sleeved on the transmission shaft (3), and the upper cover (192) is arranged right above the gasket (193) and tightly attached to the gasket (193); a bearing with a seat (20) is further arranged above the upper cover (192), the bearing with a seat (20) is sleeved on the transmission shaft (3), and the upper part of the bearing with a seat (20) is fixedly connected with the first connecting plate (8) and the second connecting plate (9) respectively.

2. The tensioning device for scraper conveyors as claimed in claim 1, characterized in that a third nut (21) is also fitted on the tensioning screw (18).

3. The tensioner for a scraper conveyor of claim 2, characterized in that the upper end face of the shim (193) is beveled, and the lower end face of the upper cover (192) matches the upper end face of the shim (193).

4. The tensioning device for the scraper conveyor as claimed in claim 3, characterized in that a first reinforcing plate (22) is connected between the first positioning rod (10) and the supporting rod (13), a second reinforcing plate (23) is connected between the second positioning rod (11) and the supporting rod (13), the first reinforcing plate (22) and the second reinforcing plate (23) are both triangular structures and are arranged in the horizontal direction, and the first reinforcing plate (22) and the second reinforcing plate (23) are arranged symmetrically relative to the central axis of the tensioning screw (18).