Chain wheel box structure

Abstract

The utility model discloses a chain wheel box structure which comprises a box body, a first chain wheel is arranged on one side in the box body, a second chain wheel is arranged on the other side in the box body, a transmission chain is arranged on one side of the first chain wheel, the transmission chain is connected with the first chain wheel and the second chain wheel in a meshed mode, and a tension mechanism is installed in the box body and comprises a tension roller. The tension roller is located at the top of the transmission chain and is in extrusion connection with the transmission chain, a limiting frame is arranged at one end of the tension roller, a limiting groove is formed in one side of the limiting frame, a limiting block is sleeved with the limiting groove, a pressure sensor is arranged at the top of the limiting groove, a sliding screw rod is arranged on the other side of the limiting frame, and one side of the sliding screw rod is sleeved with a sliding block; a motor is arranged at one end of the sliding screw rod, and an oiling mechanism is further installed in the box body. The tension of the transmission chain is adjusted through the tension mechanism, the oiling work is carried out through the oiling mechanism, the effect of automatically adjusting the tightness is achieved, and the characteristic of automatic oiling maintenance is also achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sprocket boxes, in particular to a sprocket box structure. Background Art

[0002] Agricultural machinery, the full name of which is agricultural machinery, is a type of mechanical equipment widely used in agricultural production; the main functions of agricultural machinery include but are not limited to farmland reclamation, tillage, sowing, fertilization, irrigation, harvesting and other links; with the advancement of science and technology and the modernization of agriculture, agricultural machinery has also become an important part of modern agricultural production; currently some transmission agricultural machinery mainly performs simple transmission work through the transmission chain in the sprocket box.

[0003] However, the transmission chain in the transmission sprocket box will become loose after long-term use, which will affect the transmission efficiency of the sprocket box. In the past, the staff needed to manually disassemble the sprocket box to adjust the transmission chain tension, which was very cumbersome. In addition, the transmission chain needed to be oiled and maintained regularly. Otherwise, the transmission chain will be damaged due to wear and tear after long-term work. The oiling maintenance also required disassembling the sprocket box, which brought great inconvenience to the staff. It was impossible to quickly and labor-savingly adjust the tension and carry out oiling maintenance. This application proposes a sprocket box structure to solve this problem.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] The purpose of the utility model is to provide a sprocket box structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a sprocket box structure, including a box body, a first sprocket is provided on one side of the interior of the box body, and a second sprocket is provided on the other side of the interior of the box body, a transmission chain is provided on one side of the first sprocket, and the transmission chain is meshed and connected with the first sprocket and the second sprocket respectively, and a tension mechanism is installed inside the box body, and the tension mechanism includes a tension roller, the tension roller is located at the top of the transmission chain, the tension roller is extruded and connected with the transmission chain, a limit frame is provided at one end of the tension roller, a limit groove is provided on one side of the limit frame, a limit block is sleeved inside the limit groove, a pressure sensor is provided on the top of the limit groove, the tension roller is connected with the limit block bearing, a sliding rod is provided on the other side of the limit frame, a slider is sleeved on one side of the sliding rod, a motor is provided at one end of the sliding rod, the slider is fixedly connected with the limit frame by bolts, and an oiling mechanism is also installed inside the box body.

[0007] Preferably, an input shaft is fixedly mounted on one side of the first sprocket, and the first sprocket is connected to a box bearing; an output shaft is fixedly mounted on one side of the second sprocket, and the second sprocket is connected to a box bearing.

[0008] Preferably, the limit block is movably connected to the limit groove, the pressure sensor is fixedly connected to the limit frame by bolts, and the limit block is extrusion-connected to the pressure sensor.

[0009] Preferably, the screw rod is connected to the box bearing, the slider is movably connected to the box, the motor is fixedly connected to the box bolts, and the screw rod is connected to the output end of the motor.

[0010] Preferably, the oiling mechanism comprises an oil storage box, an oil dripping nozzle and an oiling roller, the oiling roller is located on one side of the transmission chain, the oiling roller is in contact with the transmission chain, and the oiling roller is connected to the box bearing.

[0011] Preferably, the oil storage box is located at the top of the oil coating roller, the oil dripping nozzle is fixedly installed at the bottom of the oil storage box, the oil dripping nozzle is connected to the internal pipeline of the oil storage box, and the oil dripping nozzle is located above the oil coating roller.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model is a sprocket box structure, which is provided with a box body and a tension mechanism. The motor in the tension mechanism drives the tension roller to move up and down, so that the tension roller squeezes the transmission chain in the box body to adjust the tension of the transmission chain. At the same time, the pressure sensor detects the downward pressure value of the tension roller, thereby achieving the effect of inductive automatic adjustment of tightness.

[0014] 2. The utility model is a sprocket box structure, which is provided with an oiling mechanism. Lubricating oil is stored in an oil storage box in the oiling mechanism. The lubricating oil drips from the oil drip nozzle onto the surface of the oiling roller. When the transmission chain rotates, the lubricating oil on its surface is applied to the surface of the transmission chain, achieving the effect of automatic oiling maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a sprocket box structure according to an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of a box body in a sprocket box structure according to an embodiment of the utility model;

[0018] Figure 3It is a schematic diagram of the connection structure of a transmission chain in a sprocket box structure according to an embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of a tension mechanism in a sprocket box structure according to an embodiment of the utility model;

[0020] Figure 5 The utility model is a schematic structural diagram of an oiling mechanism in a sprocket box structure according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] 1. Box body; 101. First sprocket; 102. Input shaft; 103. Second sprocket; 104. Output shaft; 105. Transmission chain; 2. Tension mechanism; 201. Tension roller; 202. Limiting frame; 203. Limiting groove; 204. Limiting block; 205. Pressure sensor; 206. Slide rod; 207. Sliding block; 208. Motor; 3. Oiling mechanism; 301. Oil storage box; 302. Oil drip nozzle; 303. Oiling roller. DETAILED DESCRIPTION

[0023] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0024] See also Figure 1-5 According to a sprocket box structure of an embodiment of the utility model, it includes a box body 1, a first sprocket 101 is provided on one side of the box body 1, a second sprocket 103 is provided on the other side of the box body 1, a transmission chain 105 is provided on one side of the first sprocket 101, and the transmission chain 105 is respectively meshed and connected with the first sprocket 101 and the second sprocket 103, a tension mechanism 2 is installed inside the box body 1, and the tension mechanism 2 includes a tension roller 201, the tension roller 201 is located at the top of the transmission chain 105, the tension roller 201 is squeezed and connected with the transmission chain 105, a limit frame 202 is provided at one end of the tension roller 201, and a limit groove 203 is provided on one side of the limit frame 202, The limiting block 204 is sleeved inside the limiting groove 203, a pressure sensor 205 is provided on the top of the limiting groove 203, the tension roller 201 is connected to the bearing of the limiting block 204, a sliding rod 206 is provided on the other side of the limiting frame 202, a slider 207 is sleeved on one side of the sliding rod 206, a motor 208 is provided at one end of the sliding rod 206, the slider 207 is fixedly connected to the limiting frame 202 with bolts, and an oiling mechanism 3 is also installed inside the box 1. The utility model adjusts the tension of the transmission chain 105 through the tension mechanism 2, and performs oiling through the oiling mechanism 3. It not only has the effect of automatically adjusting the tightness, but also has the characteristics of automatic oiling maintenance.

[0025] According to the above scheme of the utility model, an input shaft 102 is fixedly installed on one side of the first sprocket 101, and the first sprocket 101 is connected to the bearing of the box body 1. An output shaft 104 is fixedly installed on one side of the second sprocket 103, and the second sprocket 103 is connected to the bearing of the box body 1. The first sprocket 101 is driven to rotate through the transmission mechanism, and the first sprocket 101 drives the transmission chain and the second sprocket 103 to rotate to perform transmission work.

[0026] According to the above scheme of the utility model, the limit block 204 is movably connected to the limit groove 203, the pressure sensor 205 is fixedly connected to the limit frame 202 by bolts, the limit block 204 is squeezed and connected to the pressure sensor 205. Through the setting of the pressure sensor 205, the pressure value of the tension roller 201 can be fed back to the agricultural machinery operating table, so that the operator can adjust the tightness. The sliding rod 206 is connected to the bearing of the box body 1, the slider 207 is movably connected to the box body 1, the motor 208 is fixedly connected to the box body 1 by bolts, the sliding rod 206 is connected to the output end of the motor 208, and the motor 208 is composed of a reduction motor, which can drive the tension roller 201 to move up and down to squeeze the transmission chain 105, thereby adjusting the tightness of the transmission chain 105.

[0027] According to the above scheme of the utility model, the oiling mechanism 3 includes an oil storage box 301, an oil dripping nozzle 302 and an oiling roller 303. The oiling roller 303 is located on one side of the transmission chain 105. The oiling roller 303 is in contact with the transmission chain 105. The oiling roller 303 is connected to the bearing of the box body 1. The oil storage box 301 is located at the top of the oiling roller 303. The lubricating oil is stored in the oil storage box 301. The oil dripping nozzle 302 is fixedly installed at the bottom of the oil storage box 301. The oil dripping nozzle 302 is connected to the internal pipeline of the oil storage box 301. The oil dripping nozzle 302 is located above the oiling roller 303 and is used to drip lubricating oil onto the oiling roller 303. The oiling roller 303 applies the lubricating oil to the surface of the transmission chain 105 for automatic oiling work.

[0028] When in use, the transmission mechanism on the agricultural machine is connected to the input shaft 102, and the second sprocket 103 is driven to rotate through the first sprocket 101 and the transmission chain 105, and the second sprocket 103 drives the output shaft 104 to rotate, so as to perform the output transmission of the agricultural machine. The transmission chain 105 will become loose after working for a long time, which will affect the transmission efficiency of the agricultural machine. At this time, the control system in the agricultural machine can be used to control the motor 208 to work, and the motor 208 drives the sliding screw 206 to rotate, and the sliding screw 206 drives the slider 207 to move downward along the box body 1, and the slider 207 drives the limit frame 202 and the limit block 204 to move downward, and the limit block 204 drives the tension roller 2 01 moves downward, so that the tension roller 201 squeezes the transmission chain 105. While the tension roller 201 squeezes the transmission chain 105, the limit block 204 moves upward along the limit groove 203, so that the limit block 204 squeezes the pressure sensor 205. After the pressure sensor 205 detects that the preset pressure value has been reached, the motor 208 stops working, and the tension adjustment is completed, thereby achieving the effect of inductive automatic adjustment of tightness; the lubricating oil is stored in the oil storage box 301, and the lubricating oil drips from the oil drip nozzle 302 onto the surface of the oiling roller 303. When the transmission chain 105 rotates, the oiling roller 303 coats the lubricating oil on its surface onto the surface of the transmission chain 105, thereby achieving the effect of automatic oiling maintenance.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sprocket box structure, comprising a box body (1), characterized in that: A first sprocket (101) is provided on one side of the interior of the box (1), and a second sprocket (103) is provided on the other side of the interior of the box (1); a transmission chain (105) is provided on one side of the first sprocket (101), and the transmission chain (105) is meshedly connected with the first sprocket (101) and the second sprocket (103) respectively; a tension mechanism (2) is installed inside the box (1), and the tension mechanism (2) comprises a tension roller (201), the tension roller (201) is located at the top of the transmission chain (105), the tension roller (201) is squeezed and connected with the transmission chain (105), and one end of the tension roller (201) is provided with a limit frame (201). 2), a limiting groove (203) is provided on one side of the limiting frame (202), a limiting block (204) is sleeved inside the limiting groove (203), a pressure sensor (205) is provided on the top of the limiting groove (203), the tension roller (201) is connected to the limiting block (204) by a bearing, a sliding rod (206) is provided on the other side of the limiting frame (202), a slider (207) is sleeved on one side of the sliding rod (206), a motor (208) is provided at one end of the sliding rod (206), the slider (207) is fixedly connected to the limiting frame (202) by bolts, and an oiling mechanism (3) is also installed inside the box body (1).

2. A sprocket box structure according to claim 1, characterized in that: An input shaft (102) is fixedly mounted on one side of the first sprocket (101), and the first sprocket (101) is connected to a bearing of the housing (1); an output shaft (104) is fixedly mounted on one side of the second sprocket (103), and the second sprocket (103) is connected to a bearing of the housing (1).

3. A sprocket box structure according to claim 2, characterized in that: The limit block (204) is movably connected to the limit groove (203), the pressure sensor (205) is fixedly connected to the limit frame (202) by bolts, and the limit block (204) is extrusion-connected to the pressure sensor (205).

4. A sprocket box structure according to claim 3, characterized in that: The screw rod (206) is connected to the bearing of the housing (1), the slider (207) is movably connected to the housing (1), the motor (208) is fixedly connected to the housing (1) by bolts, and the screw rod (206) is connected to the output end of the motor (208).

5. A sprocket box structure according to claim 1, characterized in that: The oiling mechanism (3) comprises an oil storage box (301), an oil dripping nozzle (302) and an oiling roller (303); the oiling roller (303) is located on one side of the transmission chain (105); the oiling roller (303) is in contact with the transmission chain (105); and the oiling roller (303) is connected to a bearing of the box body (1).

6. A sprocket box structure according to claim 5, characterized in that: The oil storage box (301) is located at the top of the oil coating roller (303), the oil dripping nozzle (302) is fixedly installed at the bottom of the oil storage box (301), the oil dripping nozzle (302) is connected to the internal pipeline of the oil storage box (301), and the oil dripping nozzle (302) is located above the oil coating roller (303).

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