CN220642367U - A worm gear box for a return column winch - Google Patents

Abstract

The utility model discloses a worm gear case for a prop drawing winch, which comprises a worm gear case cover, a worm gear case bottom, a bearing sleeve, a half-round head bearing cover, a gap gear device and a worm gear device, wherein the worm gear case cover and the worm gear case bottom are movably connected through bolts in a matched mode, the bearing sleeve is arranged at the rear end of the worm gear case cover, the half-round head bearing cover is arranged at the left side of the bottom of the worm gear case bottom, the gap gear device is arranged at the middle position of the matched mode of the worm gear case cover and the worm gear case bottom, and the gap gear device is connected with the worm gear device in a matched mode.

Description

A worm gear box for a return column winch

Technical field

The utility model relates to the technical field of mining equipment, in particular to a worm gear box for a back column winch.

Background technique

The back-column winch, also known as the slow-speed winch, is used for back-column topping in underground coal mine mining working faces. Because of its low height and light weight, it is especially suitable for thin coal seams and sharply inclined coal seam mining working faces, as well as various A kind of coal mining working face recovers metal pillars that sink into the floor or are buried by gangue. With the improvement of mechanized coal mining, it is increasingly widely used in mechanized coal mining working faces. It is used as a variety of installation, recovery and traction tools. For equipment and spare parts, due to the complexity of coal seam conditions in my country's coal mines and the development of mechanization of small and medium-sized coal mines in my country, the reduction gearbox of general winches has problems such as large size, complex structure, and difficulty in adapting to the small working space of small and medium-sized coal mines.

Utility model content

In view of the above problems, the present utility model aims to provide a worm gear box for a return column winch.

In order to achieve this technical purpose, the solution of the present invention is: a worm gear box for a back column winch, including a worm gear box cover, a worm gear box bottom, a bearing sleeve, a semicircular head bearing cover, a bridge gear device and a worm gear device. The worm gear box The cover and the bottom of the worm gear box are movably connected through bolts. The bearing sleeve is set at the rear end of the worm gear box cover. The semicircular head bearing cover is set on the left side of the bottom of the worm gear box. The bridge gear device is set on the bottom of the worm gear box. In the middle position where the worm gear box cover and the worm gear box bottom match, the bridge gear device and the worm gear device are matched and connected. A high-speed driven device is provided inside the bottom of the worm gear box bottom. The high-speed driven device is located in the same position as the semicircular head bearing cover. The transverse centerline is provided with a high-speed driving device in cooperation with the high-speed driven device;

The high-speed driving device includes a high-speed shaft, the left end of the high-speed shaft is socketed with the shaft end cover, and the high-speed driven wheel is socketed in the middle. The high-speed driven device includes an arc-surface worm, and the right side of the arc-surface worm is socketed with a double shaft. row conical bearings, the right side of the double row conical bearing is provided with an adjusting sleeve, the right side of the adjusting sleeve is provided with the high-speed driven wheel, the left side of the arc surface worm is sleeved with a single row radial bearing, the single row radial bearing A two-way thrust ball bearing is provided on the left side of the bearing.

Preferably: a cover plate is provided at the top of the worm gear box cover, the top of the worm gear box cover is movably connected to the upper cover, and a breathable plug is provided in the middle of the upper cover;

Preferably: the bridge gear device includes a bridge gear shaft, the outer ring of the bridge gear shaft is sleeved with a spherical roller bearing, and the outer ring of the spherical roller bearing is sleeved with the bridge gear.

Preferably: the worm gear device includes a worm gear shaft, the bottom of the worm gear shaft is sleeved with a sliding bearing cover, the upper end of the sliding bearing cover is provided with a pinion, the top end of the worm gear shaft is provided with an adjustment cover, and the bottom of the adjustment cover is provided with a single row conical bearing. , a worm gear is provided at the bottom of the single row tapered bearing;

Preferably: the bridge gear is meshed with the pinion gear.

Beneficial effects of this utility model:

The worm gear reducer has a simple structure, light weight, smooth movement and low noise. It can adapt to the working space of small and medium-sized coal mines, thus greatly improving work efficiency.

Description of drawings

Figure 1 is a front view of the overall structure of the utility model;

Figure 2 is a left view of the overall structure of the utility model;

Figure 3 is a cross-sectional view of the overall structure of the present utility model.

The accompanying drawings are marked as follows: 1 worm gear case cover; 101 cover plate; 102 upper cover; 103 breather plug; 2 worm gear case bottom; 21 high-speed driving device; 211 high-speed shaft; 212 shaft end cover; 213 high-speed driven wheel; 22 high-speed driven device; 221 arc surface screw; 222 double-row tapered bearing; 223 adjustment sleeve; 224 single-row radial bearing; 225 double-direction thrust ball bearing; 3 bearing sleeve; 4 semicircular head bearing cover; 5 bridge gear device; 51 bridge gear shaft; 52 spherical roller bearing; 53 bridge gear; 6 worm gear device; 61 worm gear shaft; 62 sliding bearing cover; 63 pinion; 64 worm wheel; 65 single-row tapered bearing; 66 adjustment cover.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

6. As shown in the figure, the specific embodiment of the utility model is: a worm gear box for a return column winch, including a worm gear box cover 1, a worm gear box bottom 2, a bearing sleeve 3, a semicircular head bearing cover 4, and a bridge gear. Device 5 and worm gear device 6, the worm gear box cover 1 and the worm gear box bottom 2 are movably connected through bolts, the bearing sleeve 3 is arranged at the rear end of the worm gear box cover 1, and the semicircular head bearing cover 4 is arranged at the On the left side of the bottom of the worm gear box bottom 2, the bridge gear device 5 is arranged at the middle position where the worm gear box cover 1 and the worm gear box bottom 2 match. The bridge gear device 5 and the worm gear device 6 are matched and connected. The worm gear box bottom 2 A high-speed driven device 22 is provided inside the bottom. The high-speed driven device 22 and the dome bearing cap 4 are located on the same transverse center line. A high-speed driving device 21 is provided in cooperation with the high-speed driven device 22;

The high-speed driving device 21 includes a high-speed shaft 211, the left end of the high-speed shaft 211 is connected to a shaft end cover 212, and the middle is connected to a high-speed driven wheel 213. The high-speed driven device 22 includes an arc surface worm 221. The right side of the surface worm 221 is connected to a double-row conical bearing 222. The right side of the double-row conical bearing 222 is provided with an adjustment sleeve 223. The right side of the adjustment sleeve 223 is provided with the high-speed driven wheel 213. The left side of the arc-surface worm 221 The side sleeve is connected with a single-row radial bearing 224, and a two-way thrust ball bearing 225 is provided on the left side of the single-row radial bearing 224;

A cover plate 101 is provided at the top of the worm gear box cover 1. The top end of the worm gear box cover 1 is movably connected to an upper cover 102. A breathable plug 103 is provided in the middle of the upper cover 102;

The bridge gear device 5 includes a bridge gear shaft 51, the outer ring of the bridge gear shaft 51 is sleeved with a spherical roller bearing 52, and the outer ring of the spherical roller bearing 52 is sleeved with the bridge gear 53;

The worm gear device 6 includes a worm gear shaft 61. The bottom of the worm gear shaft 61 is sleeved with a sliding bearing cover 62. The upper end of the sliding bearing cover 62 is provided with a pinion 63. The top end of the worm gear shaft 61 is provided with an adjustment cover 66. The adjustment cover 66 is provided at the top of the worm gear shaft 61. A single-row conical bearing 65 is provided at the bottom of 66 . A worm gear 64 is provided at the bottom of the single-row conical bearing 65 . The bridge gear 53 is meshed with the pinion gear 63 .

The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any slight modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model shall be included in Within the protection scope of the technical solution of the present utility model.

Claims (5)

1. The utility model provides a worm gear case for prop drawing winch, includes worm gear case lid (1), worm gear case bottom (2), bearing housing (3), semicircle head bearing lid (4), carrier gear device (5) and worm gear device (6), its characterized in that: the novel worm gear box comprises a worm gear box cover (1) and a worm gear box bottom (2), wherein the worm gear box cover (1) and the worm gear box bottom (2) are matched and movably connected through bolts, a bearing sleeve (3) is arranged at the rear end of the worm gear box cover (1), a semicircular head bearing cover (4) is arranged at the left side of the bottom of the worm gear box bottom (2), a gap bridge gear device (5) is arranged at the middle position of the worm gear box cover (1) and the worm gear box bottom (2) which are matched, the gap bridge gear device (5) is matched and connected with a worm gear device (6), a high-speed driven device (22) is arranged in the bottom of the worm gear box bottom (2), the high-speed driven device (22) and the semicircular head bearing cover (4) are positioned at the same transverse center line, and a high-speed driving device (21) is matched and arranged with the high-speed driven device (22);

the high-speed driving device (21) comprises a high-speed shaft (211), a shaft end cover (212) is sleeved at the left end of the high-speed shaft (211), a high-speed driven wheel (213) is sleeved in the middle of the high-speed shaft, the high-speed driven device (22) comprises an arc surface worm (221), a double-row conical bearing (222) is sleeved on the right side of the arc surface worm (221), an adjusting sleeve (223) is arranged on the right side of the double-row conical bearing (222), the high-speed driven wheel (213) is arranged on the right side of the adjusting sleeve (223), a single-row radial bearing (224) is sleeved on the left side of the arc surface worm (221), and a bidirectional thrust ball bearing (225) is arranged on the left side of the single-row radial bearing (224).

2. The worm gear case for a prop drawing winch according to claim 1, wherein: the top of the worm gear box cover (1) is provided with a cover plate (101), the top end of the worm gear box cover (1) is movably connected with an upper cover (102), and a ventilation plug (103) is arranged in the middle of the upper cover (102).

3. The worm gear case for a prop drawing winch according to claim 1, wherein: the carrier gear device (5) comprises a carrier gear shaft (51), wherein an outer ring of the carrier gear shaft (51) is sleeved with a self-aligning roller bearing (52), and an outer ring of the self-aligning roller bearing (52) is sleeved with a carrier gear (53).

4. The worm gear case for a prop drawing winch according to claim 1, wherein: the worm gear device (6) comprises a worm gear shaft (61), a sliding bearing cover (62) is sleeved at the bottom of the worm gear shaft (61), a pinion (63) is arranged at the upper end of the sliding bearing cover (62), an adjusting cover (66) is arranged at the top end of the worm gear shaft (61), a single-row conical bearing (65) is arranged at the bottom of the adjusting cover (66), and a worm gear (64) is arranged at the bottom of the single-row conical bearing (65).

5. The worm gear case for a prop drawing winch according to claim 4, wherein: the carrier gear (53) is in meshed connection with the pinion (63).