Tail frame of reversed loader

Abstract

The utility model discloses a reversed loader tail frame which comprises a chain groove formed in the upper end of the tail frame and used for conveying materials, a chain wheel set arranged at one end of the tail frame and used for driving a chain to conduct transmission, and a driving unit arranged on one side of the tail frame and used for driving the chain wheel set to rotate. The adjusting unit comprises a receding assembly arranged in the machine tail frame in a sliding mode and used for driving the chain wheel set to be separated from the chain and a bearing assembly arranged in the middle of the upper end of the chain groove and used for bearing materials before the materials enter the chain groove, and the bearing assembly and the receding assembly move synchronously. The driving unit drives the chain wheel set to move in the direction of the chain groove, so that the receding assembly gradually moves towards the direction of the chain groove, and meanwhile, the driving unit further drives the bearing assembly to move towards the direction of the chain groove, so that the chain wheel set which is originally in a tightened state with the chain is switched to be in a loosened state with the chain; and the chain wheel group is cleaned and maintained to avoid obstruction of the chain, and the cleaning difficulty is low.

Description

Technical Field

[0001] This utility model relates to the field of transfer machine technology, specifically to the tail frame of a transfer machine. Background Technology

[0002] Scraper conveyors are commonly used in coal mining faces. During the operation of fully mechanized mining faces, they generally need to be connected with transfer conveyors. If the connection is not reasonable, the scraper conveyor may pull back coal, increase the running resistance of the conveyor, and cause electromechanical accidents such as chain breakage. Therefore, in actual operation, it is necessary to control the reasonable connection between the scraper conveyor and the transfer conveyor.

[0003] Currently, the tail section of the transfer machine connected to the cross-side unloading head frame of the scraper conveyor mainly uses a tail frame and a cover to fix the sprocket shaft assembly. Due to the narrow working space underground, it is difficult to remove the cover to clean and maintain the sprocket shaft assembly. In addition, the chain and sprocket shaft assembly are in a taut state, which further increases the difficulty of disassembling the sprocket shaft assembly, thus affecting the coal mine production efficiency. Therefore, it is necessary to improve this problem.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a tail frame for a transfer machine to solve the problem mentioned in the background art, which uses a tail frame and cover to fix the sprocket shaft assembly. Due to the narrow working space underground, when it is necessary to clean and maintain the sprocket assembly, removing the cover makes maintenance of the sprocket shaft assembly difficult. In addition, the chain and sprocket shaft assembly are in a taut state, which further increases the difficulty of maintaining the sprocket shaft assembly and thus affects the coal mine production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The tail frame of the transfer machine includes a chain groove located at the upper end of the tail frame for conveying materials, a sprocket assembly located at one end of the tail frame for driving the chain for transmission, and further includes:

[0008] The drive unit, located on one side of the tail frame, is used to drive the sprocket assembly to rotate;

[0009] The adjustment unit includes a retraction component slidably disposed inside the tail frame for driving the sprocket assembly to separate from the chain, and a receiving component disposed in the middle of the upper end of the chain groove for bearing the material before it enters the chain groove. The receiving component and the retraction component move synchronously.

[0010] Furthermore, the driving unit includes:

[0011] A driving motor is installed at one end of the chain wheel set and located at one side of the tail frame, a driving shaft at one end of the driving motor is fixedly inserted into the chain wheel set and rotationally connected to the inner sides of the tail frame, for driving the chain wheel set to rotate;

[0012] A support plate is fixedly connected at one side of the tail frame and located at the lower end of the driving motor, for supporting the driving motor.

[0013] Further, the lower end of the driving motor is fixedly connected with a sliding block;

[0014] The sliding block is slidably arranged at the upper end of the support plate, for reducing the friction between the driving motor and the support plate.

[0015] Further, the driving unit further comprises:

[0016] Two electric cylinders are fixedly installed at the two sides of the tail frame, for adjusting the position of the driving shaft;

[0017] Two first bearings are sleeved on the outer side of the driving shaft and correspond to the driving ends of the two electric cylinders.

[0018] Further, the position returning assembly comprises:

[0019] Two second bearings are respectively sleeved on the outer side of the sliding block and located at the inner wall of the tail frame;

[0020] A top rod is slidably inserted into the inner part of the tail frame and located at one side of the second bearing, for tightly pressing the second bearing.

[0021] Further, a position returning groove for accommodating the top rod is arranged at the inner part of the tail frame and located at the outer side of the top rod;

[0022] A tightening spring for tightly pressing the top rod is connected to one end of the top rod relative to the second bearing, and the tightening spring is located in the position returning groove, for tightly pressing the top rod.

[0023] Further, an arc-shaped groove is arranged at one end of the top rod relative to the second bearing, and the inner diameter of the arc-shaped groove is equal to the outer diameter of the second bearing, for increasing the contact area between the top rod and the second bearing.

[0024] Further, the bearing assembly comprises:

[0025] A bearing rod is connected between the two top rods, and the two ends of the bearing rod are fixedly connected with the two top rods, respectively;

[0026] A vertical rod is fixedly connected to the upper end of the bearing rod.

[0027] A guide frame is fixedly connected to the upper end of the vertical rod and used to compensate the spacing between the chain wheel set and the chain groove.

[0028] Further, one end of the guide frame extends into the chain groove and the guide frame is located at the upper end of the chain groove.

[0029] Further, a guide groove is arranged on the inner side of the tail frame and outside the bearing rod and used to guide and limit the movement of the bearing rod.

[0030] The guide groove is in communication with the retreat groove.

[0031] Compared with the prior art, the utility model has the advantages that:

[0032] 1、 the utility model discloses a drive unit is started, and drive unit drives chain wheel set and drives the direction along chain groove movement, make retreat subassembly gradually move towards the direction of chain groove, simultaneously, drive unit still drives the direction of the movement of the receiving subassembly towards chain groove, make the chain wheel set that originally with chain is in the state of being taut and switch to the state of being loose with chain, at this moment, the cleaning and maintenance of chain wheel set can avoid the hindrance of chain, and the whole cleaning and maintenance process does not need to remove the cover, and the cleaning difficulty is low. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is the whole structure schematic diagram of the utility model;

[0034] Figure 2 It is the cooperation relation diagram of drive unit and adjusting unit of the utility model;

[0035] Figure 3 It is the cooperation relation diagram of retreat subassembly and receiving subassembly of the utility model;

[0036] Figure 4 It is the inside structure schematic diagram of tail frame body of the utility model;

[0037] Figure 5 It is the structure schematic diagram of bearing assembly of the utility model.

[0038] Sign meaning: 1001, retreat groove, 1002, guide groove, 101, chain groove, 102, chain wheel set, 1, drive unit, 11, support plate, 12, drive motor, 121, sliding block, 122, drive shaft, 13, electric cylinder, 14, first bearing, 2, adjusting unit, 21, retreat subassembly, 211, second bearing, 212, jacking rod, 2121, arc slot, 213, jacking spring, 22, receiving subassembly, 221, bearing rod, 222, vertical rod, 223, guide frame. DETAILED DESCRIPTION

[0039] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0040] Embodiment one

[0041] Please refer to Figures 1-5 The present application provides a technical solution:

[0042] The tail frame of the reclaimer comprises a chain groove 101 arranged at the upper end of the tail frame for conveying materials, a sprocket set 102 arranged at one end of the tail frame for driving the chain to transmit, and further comprises:

[0043] The driving unit 1 is arranged at one side of the tail frame and is used to drive the sprocket set 102 to rotate;

[0044] The adjusting unit 2 comprises a retreat assembly 21 slidingly arranged in the tail frame and used to drive the sprocket set 102 to separate from the chain, and a receiving assembly 22 arranged at the middle of the upper end of the chain groove 101 and used to support the materials before entering the chain groove 101, wherein the receiving assembly 22 moves synchronously with the retreat assembly 21.

[0045] It should be noted that when the sprocket set 102 needs to be cleaned and maintained, the driving unit 1 is started, the driving unit 1 drives the sprocket set 102 to move along the direction of the chain groove 101, so that the retreat assembly 21 gradually moves towards the direction of the chain groove 101, at the same time, the driving unit 1 also drives the receiving assembly 22 to move towards the direction of the chain groove 101, so that the sprocket set 102 originally in the tensioned state with the chain is switched to the loosened state with the chain. At this time, cleaning and maintaining the sprocket set 102 can avoid the obstruction of the chain, and the whole cleaning and maintaining process does not need to disassemble the cover, and the cleaning difficulty is low.

[0046] Embodiment two

[0047] As Figures 2-3 shown, the same or corresponding parts as in the above embodiments are denoted by corresponding reference numerals, and for the sake of simplicity, only the different points from embodiment one will be described below. The difference between this embodiment two and embodiment one is that:

[0048] The driving unit 1 comprises:

[0049] A drive motor 12 is installed at one end of the sprocket assembly 102 and located on one side of the tail frame. The drive shaft 122 at one end of the drive motor 12 is fixedly inserted into the sprocket assembly 102 and rotatably connected to the two sides inside the tail frame, for driving the sprocket assembly 102 to rotate.

[0050] The support plate 11 is fixedly connected to one side of the tail frame and located at the lower end of the drive motor 12, and is used to support the drive motor 12.

[0051] Furthermore, a slider 121 is fixedly connected to the lower end of the drive motor 12;

[0052] The slider 121 is slidably placed on the upper end of the support plate 11 to reduce the friction between the drive motor 12 and the support plate 11.

[0053] Furthermore, the drive unit 1 also includes:

[0054] Two sets of electric cylinders 13 are fixedly installed on both sides of the tail frame and are used to adjust the position of the drive shaft 122.

[0055] The first bearing 14 has two sets, which are sleeved on the outside of the drive shaft 122 and correspond one-to-one with the drive ends of the two sets of electric cylinders 13.

[0056] It should be noted that when it is necessary to switch the sprocket assembly 102 and the chain from a tensioned state to a loose state, the electric cylinder 13 can be activated. The electric cylinder 13 drives the drive shaft 122 to move along the guide groove 1002 through the first bearing 14, so that the drive shaft 122 drives the sprocket assembly 102 and the chain from a tensioned state to a loose state, which facilitates the cleaning and maintenance of the sprocket assembly 102.

[0057] Example 3

[0058] like Figure 3 As shown, components that are the same as or corresponding to those in the above embodiments are represented by the same reference numerals as those in the above embodiments. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0059] The retraction component 21 includes:

[0060] The second bearing 211 has two sets, which are respectively sleeved on the outside of the slider 121 and located on the inner wall of the tail frame;

[0061] The push rod 212 is slidably inserted into the inside of the tail frame and located on one side of the second bearing 211, and is used to tighten the second bearing 211.

[0062] Furthermore, the tail frame is provided with a retraction groove 1001 for accommodating the top rod 212 inside and outside the top rod 212;

[0063] One end of the top rod 212 relative to the second bearing 211 is connected with a top-up spring 213 for top-up of the top rod 212, and the top-up spring 213 is located inside the position-retreating groove 1001 for top-up of the top rod 212.

[0064] Wherein, one end of the top rod 212 relative to the second bearing 211 is provided with an arc-shaped groove 2121, and the inner diameter of the arc-shaped groove 2121 is equal to the outer diameter of the second bearing 211, for increasing the contact area of the top rod 212 and the second bearing 211.

[0065] It should be noted that, in the process of driving the chain wheel set 102 to move along the guide groove 1002 by the driving shaft 122, the driving shaft 122 also drives the top rod 212 to move along the position-retreating groove 1001 by the second bearing 211 and gradually compresses the top-up spring 213, when the chain wheel set 102 is cleaned and maintained and the second bearing 211 is reset, the top-up spring 213 pushes the top rod 212 to move reversely along the position-retreating groove 1001 to top-up the second bearing 211, so as to ensure that the guide groove 1002 is always closed by the top rod 212 in the working process of the chain wheel set 102, and the coal material is prevented from entering into the position-retreating groove 1001 in the conveying process.

[0066] Embodiment four

[0067] As shown in FIG. 2, wherein the same or corresponding parts as in the above embodiments are denoted by the corresponding reference numerals in the above embodiments, for the sake of simplicity, only the difference from the embodiment one will be described below. The embodiment two is different from the embodiment one in that: Figures 4-5 The receiving assembly 22 comprises:

[0068] A bearing rod 221 is connected between the two groups of top rods 212, and the two ends of the bearing rod 221 are fixedly connected with the two groups of top rods 212, respectively.

[0069] A vertical rod 222 is fixedly connected to the upper end of the bearing rod 221.

[0070] A material guide 223 is fixedly connected to the upper end of the vertical rod 222, for compensating the spacing between the chain wheel set 102 and the chain groove 101.

[0071] Further, one end of the material guide 223 extends into the chain groove 101 and the material guide 223 is located at the upper end of the chain groove 101.

[0072] Still further, a guide groove 1002 for guiding and limiting the movement of the bearing rod 221 is arranged on the inner side of the tail frame and outside the bearing rod 221.

[0073]

[0074] ​The guide groove 1002 is in communication with the inside of the retreat groove 1001.

[0075] It should be noted that: by setting the guide frame 223 in the interval area between the chain wheel set 102 and the chain groove 101, the retreat space is provided for the chain wheel set 102, so that under the premise that the chain wheel set 102 is loosened with the chain, the coal falling into the interval area between the chain wheel set 102 and the chain groove 101 can still be brought into the chain groove 101 by the scraper, wherein, in the process that the driving shaft 122 drives the jacking rod 212 to move along the retreat groove 1001 and gradually compresses the jacking spring 213, the jacking rod 212 drives the guide frame 223 to move synchronously under the action of the vertical rod 222 through the bearing rod 221, and when the cleaning and maintenance of the chain wheel set 102 is completed, the guide frame 223 and the chain wheel set 102 are also reset synchronously.

[0076] As shown in Figures 1-5 The working principle of the utility model is as follows: in the normal working state of the tail frame, the chain wheel set 102 and the scraper chain are in a taut state, the driving motor 12 drives the chain wheel set 102 to rotate through the driving shaft 122, the chain wheel set 102 drives the scraper chain to rotate, so that the coal placed on the guide frame 223 is brought into the chain groove 101 by the scraper chain and continues to be conveyed, when the chain wheel set 102 needs to be cleaned and maintained, the electric cylinder 13 is started, the electric cylinder 13 drives the driving shaft 122 to move along the guide groove 1002 through the first bearing 14, the driving shaft 122 drives the driving motor 12 to slide along the supporting plate 11 at the same time, and also drives the chain wheel set 102 to retreat, so that the chain wheel set 102 and the chain are switched from the taut state to the loosened state, the driving shaft 122 also drives the jacking rod 212 to gradually compress the jacking spring 213 along the retreat groove 1001 through the second bearing 211, the jacking rod 212 drives the guide frame 223 to retreat synchronously under the action of the vertical rod 222 through the bearing rod 221.

[0077] When the cleaning and maintenance of the chain wheel set 102 are completed, the electric cylinder 13 drives the driving shaft 122 to reset through the first bearing 14, so that the driving motor 12, the guide frame 223 and the jacking rod 212 also complete the reset work synchronously.

[0078] It should be noted that: in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment.

[0079] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tail frame of a reclaimer, comprising a chain trough (101) arranged at the upper end of the tail frame for conveying materials, and a sprocket set (102) arranged at one end of the tail frame for driving the chain to transmit power, characterized in that, Also includes: The drive unit (1) is arranged on one side of the tail frame, used to drive the chain wheel set (102) to rotate; The adjusting unit (2) includes a slidingly arranged inside the tail frame for driving the chain wheel set (102) and the chain to separate the retreat component (21), arranged on the upper end of the chain groove (101) for carrying the material before entering the chain groove (101) The receiving assembly (22) moves synchronously with the retreat component (21).

2. The tail frame of the transfer station according to claim 1, wherein: The drive unit (1) comprises: The drive motor (12) is installed at one end of the chain wheel set (102) and located on one side of the tail frame, and the drive shaft (122) at one end of the drive motor (12) is fixedly inserted into the chain wheel set (102) and rotatably connected to the inside of the tail frame, used to drive the chain wheel set (102) to rotate; The support plate (11) is fixedly connected on one side of the tail frame and located at the lower end of the drive motor (12), used to support the drive motor (12).

3. The tail frame of the transfer station according to claim 2, wherein: The lower end of the drive motor (12) is fixedly connected with a sliding block (121); The sliding block (121) is slidingly arranged on the upper end of the support plate (11), used to reduce the friction between the drive motor (12) and the support plate (11).

4. The tail frame of the transfer station according to claim 3, wherein: The drive unit (1) further comprises: Electric cylinders (13) are arranged in two groups and fixedly installed on both sides of the tail frame, used to adjust the position of the drive shaft (122); The first bearing (14) is provided in two groups and is sleeved on the outside of the drive shaft (122) and corresponds to the drive end of the two groups of electric cylinders (13).

5. The tail frame of the transfer station according to claim 1, wherein: The retreat component (21) comprises: The second bearing (211) is provided in two groups and is sleeved on the outside of the sliding block (121) and located on the inner wall of the tail frame; The top rod (212) is slidingly inserted into the inside of the tail frame and located on one side of the second bearing (211), used to tighten the second bearing (211).

6. The tail frame of the transfer station according to claim 5, wherein: The inside of the tail frame and the outside of the top rod (212) are provided with a retreat groove (1001) for accommodating the top rod (212); One end of the top rod (212) relative to the second bearing (211) is connected with a tightening spring (213) for tightening the top rod (212), and the tightening spring (213) is located in the inside of the retreat groove (1001), used to tighten the top rod (212).

7. The tail frame of the transfer station according to claim 6, wherein: One end of the top rod (212) located on the second bearing (211) is provided with an arc-shaped groove (2121), and the inner diameter of the arc-shaped groove (2121) is equal to the outer diameter of the second bearing (211), used to increase the contact area of the top rod (212) and the second bearing (211).

8. The tail frame of the transfer machine according to claim 5, characterized in that: the receiving assembly (22) comprises: a bearing rod (221) connected between the two groups of the top rods (212), two ends of the bearing rod (221) being fixedly connected with the two groups of the top rods (212) respectively; a vertical rod (222) fixedly connected to the upper end of the bearing rod (221); a material guide frame (223) fixedly connected to the upper end of the vertical rod (222) and used for compensating the spacing between the chain wheel set (102) and the chain groove (101).

9. The tail frame of the transfer machine according to claim 8, characterized in that: one end of the material guide frame (223) extends into the chain groove (101) and the material guide frame (223) is located at the upper end of the chain groove (101).

10. The tail frame of the transfer machine according to claim 8, characterized in that: a guide groove (1002) for guiding and limiting the movement of the bearing rod (221) is arranged on the inner side of the tail frame and outside the bearing rod (221); the guide groove (1002) is in communication with the inside of the retreat groove (1001).

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