Guide sliding shoe of thrust wheel

Abstract

The utility model discloses a thrust wheel guide sliding shoe which comprises a supporting plate and two hoop plates which are fixedly connected, an installation hole is formed in the supporting plate, the two hoop plates are symmetrically arranged relative to the installation hole, a guide groove for inserting a pin row is formed between the hoop plates and the supporting plate, extension plates are arranged on the sides, away from each other, of the two hoop plates respectively, and the extension plates are connected with the installation hole. A thrust wheel is arranged in the extension plate and is in rolling connection with the pin row; the extension plates are arranged on the two sides of the guide sliding shoe, the thrust wheels are arranged in the extension plates, the bottom walls of the thrust wheels make contact with the pin row of the scraper conveyor, sliding friction between the guide sliding shoe and the pin row is changed into rolling friction, and a certain distance is formed between the two thrust wheels due to the arrangement of the two extension plates. Therefore, the contact area of the guide sliding shoe and the pin row is increased equivalently, the stability of the guide sliding shoe is improved, and the coal mining machine walks more stably due to small friction force when the guide sliding shoe is matched with rolling friction.

Description

Technical Field

[0001] The utility model relates to the technical field of mining machinery and equipment, in particular to a guide shoe for a track wheel. Background Art

[0002] Coal mining machine is the core equipment of fully mechanized mining face, mainly completing coal dropping and coal loading operations. Coal mining machine is divided into four types: sawing type, planing type, drilling type and milling type.

[0003] The milling coal mining machine consists of a cutting part, a power part and a traction part. The cutting part includes a working mechanism and a reducer; the power part includes an electric motor and an electrical control box; the traction part includes walking wheels and guide shoes, etc. The guide shoes are an important part of the traction part, mainly used to bear the weight of the coal mining machine body and play a guiding role during the travel process.

[0004] In the prior art, the guide shoe of the coal mining machine has defects during its operation: when the coal mining machine is working underground, the coal mining machine moves on the scraper conveyor through the meshing between the walking wheel and the pin row. Since the guide shoe of the coal mining machine slides through the wear-resistant plate at the bottom and the pin row of the scraper conveyor, there is sliding friction, causing severe wear of the wear-resistant plate, and at the same time causing the coal mining machine to tilt toward the coal wall side, thereby affecting the stability of the coal mining machine during operation. The life of the guide shoe is short, and the guide shoe needs to be completely replaced after being worn, which increases the cost of use.

[0005] Based on this, the existing technology needs to be further improved. Utility Model Content

[0006] In view of the shortcomings of the prior art, a guide shoe for a supporting wheel is proposed, which solves the problems in the above-mentioned background technology that the guide shoe is severely worn, has a short service life, and needs to be completely replaced after the guide shoe is worn.

[0007] In order to achieve the above purpose, the utility model proposes the following technologies to achieve it:

[0008] A guide shoe for a supporting roller comprises a support plate and a hoop plate which are fixedly connected, the support plate being provided with a mounting hole, two hoop plates being symmetrically arranged relative to the mounting hole, a guide groove for plugging a pin row being formed between the hoop plate and the support plate, extension plates being arranged on the sides of the two hoop plates which are away from each other, supporting rollers being arranged in the extension plates, and the supporting rollers being rollingly connected to the pin row.

[0009] Furthermore, the extension plate is provided with a mounting groove, and the supporting wheel is rotatably mounted in the mounting groove.

[0010] Furthermore, the length of the track roller is not greater than the width of the guide groove, and the bottom of the track roller is located inside the guide groove.

[0011] Furthermore, a reinforcing plate is provided above the hoop plate, the reinforcing plate is fixedly connected to the support plate, and the reinforcing plate is arc-shaped and cocentric with the mounting hole.

[0012] Furthermore, the mounting groove passes through the thickness direction of the extension plate, and the mounting groove includes a first mounting groove and a second mounting groove that are connected to each other, the first mounting groove passes through the extension plate, and the supporting wheel includes a wheel axle and a support wheel sleeved on the periphery of the wheel axle, the wheel axle is arranged inside the second mounting groove, and the support wheel is arranged inside the first mounting groove.

[0013] Furthermore, the wheel axle is fixedly installed in the second installation groove, the supporting wheel is rotatably connected to the wheel axle, and a bushing is arranged between the supporting wheel and the wheel axle.

[0014] Furthermore, retaining rings are provided at both ends of the support wheel, the retaining rings are clamped between the support wheel and the mounting groove, and the retaining rings are fixedly connected to the wheel axle.

[0015] Furthermore, the wheel axle is provided with oil passages that intersect vertically and horizontally and are evenly distributed, and the openings of the oil passages are provided with oil plugs.

[0016] Furthermore, a floating seal is provided between the retaining ring and the bushing, an oil injection nozzle is provided on the floating seal, and the oil injection nozzle is connected to the oil channel.

[0017] Compared with the prior art, the comprehensive effects brought by the utility model include:

[0018] (1) Extension plates are arranged on both sides of the guide sliding shoe, and supporting rollers are arranged inside the extension plates. The bottom wall of the supporting roller contacts the pin row of the scraper conveyor, and the sliding friction between the guide sliding shoe and the pin row is converted into rolling friction. The arrangement of the two extension plates allows a certain distance between the two supporting rollers, which is equivalent to increasing the contact area between the guide sliding shoe and the pin row, improving the stability of the guide sliding shoe, and the smaller friction force during rolling friction makes the coal mining machine walk more smoothly.

[0019] (2) The supporting roller greatly reduces the friction between the roller and the pin row of the scraper conveyor, thereby reducing the wear of the guide shoe during operation and greatly extending the service life of the guide shoe. The supporting roller is composed of a support wheel and a wheel axle. When a specific component is worn, the corresponding structure can be directly replaced without replacing the entire shoe, thereby reducing the cost of use. The supporting roller is provided with a wear-resistant bushing, which has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 2 This is a side view of the structure of an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the front view structure of an embodiment of the utility model;

[0023] Figure 4 for Figure 3 Schematic diagram of the AA section view.

[0024] Legend: 1. Support plate; 2. Clamp plate; 3. Mounting hole; 4. Guide groove; 5. Extension plate; 6. Track roller; 7. Reinforcement plate; 8. Axle; 9. Support wheel; 10. Bushing; 11. Retaining ring; 12. Oil channel; 13. Floating seal; 14. Oiling nozzle. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings 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 them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the utility model.

[0026] In this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "top", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0027] like Figures 1 to 4 As shown, a guide shoe for a supporting roller comprises a support plate 1 and a hoop plate 2 which are fixedly connected. The support plate 1 is provided with a mounting hole 3. Two hoop plates 2 are symmetrically arranged relative to the mounting hole 3. A guide groove 4 for plugging a pin row is formed between the hoop plate 2 and the support plate 1. Extension plates 5 are respectively arranged on the sides of the two hoop plates 2 which are away from each other. A supporting roller 6 is arranged in the extension plate 5. The supporting roller 6 is rollingly connected to the pin row.

[0028] Specifically, the supporting roller 6 is arranged perpendicular to the extension direction of the guide groove 4, extension plates 5 are arranged on both sides of the guide sliding shoe, and the supporting roller 6 is arranged in the extension plate 5. During operation, when the coal mining machine walks on the scraper conveyor by engaging with the pin row, the bottom wall of the supporting roller 6 contacts with the pin row of the scraper conveyor, so that the supporting roller 6 rolls along the pin row as it engages with the pin row. At the same time, due to the arrangement of the two extension plates 5, a certain distance is provided between the two supporting rollers 6, thereby achieving rolling friction while increasing the contact area between the guide sliding shoe and the pin row, improving the stability of the guide sliding shoe, and cooperating with the smaller friction force during rolling friction to make the coal mining machine walk more smoothly; the supporting roller 6 converts the sliding friction between the guide sliding shoe and the pin row into rolling friction, greatly reducing the friction between the pin row of the scraper conveyor, thereby reducing the wear of the guide sliding shoe during operation and greatly extending the service life of the guide sliding shoe.

[0029] In the track roller guide shoe of this embodiment, a mounting groove is provided on the extension plate 5, and the track roller 6 is rotatably mounted in the mounting groove.

[0030] The mounting groove is provided to accommodate the supporting roller 6, and at the same time, the position between the supporting roller 6 and the extension plate 5 is limited to prevent the supporting roller 6 from rotating unstably.

[0031] Preferably, the top surface of the extension plate 5 is located above the top surface of the hoop plate 2, that is, the longitudinal thickness of the extension plate 5 is greater than the thickness of the hoop plate 2, thereby improving the strength of the extension plate 5, better supporting the supporting wheel 6, and improving the stability of the guide shoe.

[0032] In the track roller guide shoe of this embodiment, the length of the track roller 6 is not greater than the width of the guide groove 4 , and the bottom of the track roller 6 is located inside the guide groove 4 .

[0033] The above arrangement ensures that the supporting wheel 6 is in full contact with the pin row installed in the guide groove 4, while preventing the supporting wheel 6 from being too long, which would cause uneven force on the middle and two ends of the supporting wheel 6 and lead to concentrated force, thus affecting the service life of the supporting wheel 6. Furthermore, the above structure makes the overall structure of the guide shoe more compact.

[0034] In the guide shoe of the supporting roller of the present embodiment, a reinforcing plate 7 is arranged above the hoop plate 2 , and the reinforcing plate 7 is fixedly connected to the support plate 1 . The reinforcing plate 7 is arc-shaped and is concentric with the mounting hole 3 .

[0035] A reinforcing plate 7 is provided to enhance the connection strength between the support plate 1 and the hoop plate 2, further improving the overall strength of the extension plate 5 and the guide shoe. The reinforcing plate 7 is provided in an arc shape to guide and protect the end of the traveling wheel installed in the mounting hole 3.

[0036] In the supporting wheel guide shoe of this embodiment, the mounting groove passes through the thickness direction of the extension plate 5, and the mounting groove includes a first mounting groove and a second mounting groove that are connected. The first mounting groove passes through the extension plate 5. The supporting wheel 6 includes an axle 8 and a support wheel 9 sleeved on the periphery of the axle 8. The axle 8 is arranged inside the second mounting groove, and the support wheel 9 is arranged inside the first mounting groove.

[0037] The support wheel 9 is arranged to be rotatably connected in the first installation groove which passes through the extension plate 5, so as to ensure that the rolling surface of the support wheel 9 only contacts with the pin row, thereby reducing the friction between the support wheel 9 and the installation groove and improving the service life of the support wheel 9. Meanwhile, the smaller friction makes the coal mining machine more stable in walking.

[0038] Through the above structure, the support wheel 9 can be directly replaced after being worn, and the axle 8 can be directly replaced after being worn, without having to replace the entire guide shoe, thereby reducing the use cost.

[0039] In the guide shoe of the supporting wheel of this embodiment, the wheel axle 8 is fixedly installed in the second installation groove, the supporting wheel 9 is rotatably connected to the wheel axle 8, and a bushing 10 is arranged between the supporting wheel 9 and the wheel axle 8.

[0040] Specifically, the second mounting groove is located at the bottom of the extension plate 5, and its length is greater than that of the first mounting groove and the groove depth matches the diameter of the wheel axle 8, so as to facilitate fixing the wheel axle 8 inside the extension plate 5. A bushing 10 is provided to avoid direct contact between the support wheel 9 and the wheel axle 8, reduce the friction between the support wheel 9 and its rotating shaft, and improve the service life of the support wheel 9.

[0041] In the guide shoe of the supporting wheel of this embodiment, retaining rings 11 are provided at both ends of the supporting wheel 9, the retaining rings 11 are clamped between the supporting wheel 9 and the mounting groove, and the retaining rings 11 are fixedly connected to the wheel shaft 8. The retaining rings 11 are provided to limit the supporting wheel 9 in the axial direction of the wheel shaft 8 to avoid displacement resulting in unstable rotation of the supporting wheel 9.

[0042] In the guide shoe of the supporting roller of this embodiment, the inside of the wheel shaft 8 is provided with oil passages 12 which intersect vertically and horizontally and are evenly distributed, the opening of the oil passages 12 abuts against the bushing 10, and an oil plug is provided between the oil passages 12 and the extension plate 5. The provision of the oil passages 12 facilitates the flow of lubricating oil to between the supporting wheel 9 and the wheel shaft 8 and the bushing 10, thereby lubricating, reducing the friction of the rotation of the supporting wheel 9, and making the supporting wheel 9 roll more smoothly on the pin row.

[0043] In the guide shoe of the supporting wheel of this embodiment, a floating seal 13 is arranged between the retaining ring 11 and the bushing 10, and the floating seal seals the lubricating oil to prevent the lubricating oil leakage from affecting the lubrication effect. An oil filling nozzle 14 is arranged between the floating seal 13 and the mounting groove, and the oil filling nozzle 14 is connected to the oil channel 12.

[0044] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "rotation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, 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 utility model can be understood according to the specific circumstances.

[0045] Although the embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guide shoe for a track roller, characterized in that: It includes a support plate and a hoop plate that are fixedly connected, the support plate is provided with a mounting hole, two hoop plates are symmetrically arranged relative to the mounting hole, a guide groove for plugging a pin row is formed between the hoop plate and the support plate, and extension plates are respectively arranged on the sides of the two hoop plates that are away from each other, supporting rollers are arranged in the extension plates, and the supporting rollers are rollingly connected to the pin row.

2. The guide shoe of the track roller according to claim 1, characterized in that: The extension plate is provided with a mounting groove, and the supporting wheel is rotatably mounted in the mounting groove.

3. The guide shoe of the supporting wheel according to claim 1, characterized in that: The length of the supporting roller is not greater than the width of the guide groove, and the bottom of the supporting roller is located inside the guide groove.

4. The guide shoe of the track roller according to claim 1, characterized in that: A reinforcing plate is arranged above the hoop plate, the reinforcing plate is fixedly connected to the supporting plate, and the reinforcing plate is arc-shaped and has the same center as the mounting hole.

5. The guide shoe of the track roller according to claim 2, characterized in that: The mounting groove passes through the thickness direction of the extension plate, and the mounting groove includes a first mounting groove and a second mounting groove that are connected, the first mounting groove passes through the extension plate, and the supporting wheel includes a wheel axle and a support wheel sleeved on the periphery of the wheel axle, the wheel axle is arranged inside the second mounting groove, and the support wheel is arranged inside the first mounting groove.

6. The guide shoe of the track roller according to claim 5, characterized in that: The wheel axle is fixedly installed in the second installation groove, the supporting wheel is rotatably connected to the wheel axle, and a bushing is arranged between the supporting wheel and the wheel axle.

7. The guide shoe of the track roller according to claim 6, characterized in that: Securing rings are arranged at both ends of the supporting wheel, the securing rings are clamped between the supporting wheel and the mounting groove, and the securing rings are fixedly connected to the wheel shaft.

8. The guide shoe of the track roller according to claim 7, characterized in that: The wheel axle is provided with oil passages which are intersected vertically and horizontally and evenly distributed, and the openings of the oil passages are provided with oil plugs.

9. The guide shoe of the track roller according to claim 8, characterized in that: A floating seal is arranged between the retaining ring and the bushing, and an oil injection nozzle is arranged on the floating seal, and the oil injection nozzle is connected to the oil channel.

Images