Brake control device for rotary tiller

Abstract

The utility model discloses a brake control device for a rotary tiller, comprising: a housing; a telescopic mechanism, the telescopic mechanism is arranged in the housing, the telescopic mechanism is used to connect with the brake line of the rotary tiller, the telescopic mechanism is provided with a limit rod, the telescopic mechanism can move relative to the housing; a drive motor, the drive motor is transmission-connected with the telescopic mechanism, the drive motor can drive the limit rod to move relative to the housing to a first position and a second position; a limit switch, the limit switch is electrically connected with the drive motor, the limit switch is arranged on the housing, when the limit rod is in the second position, the limit rod abuts against the limit switch and opens and / or disconnects the limit switch. The utility model can avoid damaging the brake mechanism of the rotary tiller, and enables the brake control device to better adapt to the harsh working environment of the rotary tiller.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a brake control device for a rotary tiller. Background Art

[0002] A rotary tiller is a tilling machine used to complete plowing and harrowing operations. It has been widely used because of its strong soil crushing ability and flat surface after plowing. It can also cut up the root stubble buried below the surface, which is convenient for the seed drill to operate and provide a good seed bed for later sowing. The electric control brake mechanism of the current rotary tiller generally uses a drive motor to directly pull the brake line, and then drives the brake mechanism to complete the braking action. Since the travel of the brake line cannot be effectively controlled, the drive motor still tightens the brake line after braking, which can easily cause damage to the brake line and brake mechanism, affecting the service life. Utility Model Content

[0003] The utility model provides a brake control device for a rotary tiller, which can avoid damaging the brake mechanism of the rotary tiller and enable the brake control device to better adapt to the relatively harsh working environment of the rotary tiller.

[0004] In order to solve the above technical problems, the utility model provides a brake control device for a rotary tiller, which is characterized by comprising:

[0005] case;

[0006] A telescopic mechanism, the telescopic mechanism is arranged in the housing, the telescopic mechanism is used to be connected to the brake line of the rotary tiller, the telescopic mechanism is provided with a limit rod, and the telescopic mechanism can move relative to the housing;

[0007] A driving motor, the driving motor is drivingly connected to the telescopic mechanism, and the driving motor can drive the limiting rod to move to a first position and a second position relative to the housing;

[0008] A limit switch, wherein the limit switch is electrically connected to the drive motor and is disposed on the housing. When the limit rod is located at the second position, the limit rod abuts against the limit switch and opens and / or disconnects the limit switch.

[0009] As a preferred embodiment of the above technical solution, a limit slot is provided on the shell, the limit rod is inserted in the limit slot, the limit rod can move to a first position and a second position in the limit slot, and the position of the limit switch corresponds to the position of the limit slot.

[0010] As a preferred embodiment of the above technical solution, a receiving groove is provided on the shell, the position of the receiving groove corresponds to the position of the telescopic mechanism, and the receiving groove is used to receive the brake line of the rotary tiller.

[0011] As a preferred embodiment of the above technical solution, a mounting portion is provided on the shell, and the mounting portion is a waist-shaped hole.

[0012] As a preferred embodiment of the above technical solution, a fixing hole is provided on the driving motor, a fixing shaft is provided on the housing, and the fixing shaft is inserted into the fixing hole.

[0013] As a preferred embodiment of the above technical solution, a fixing bracket is provided on the shell, and the fixing bracket abuts against the driving motor.

[0014] As a preferred embodiment of the above technical solution, the limit switch includes a switch body and a contact piece, and the contact piece can rotate to a first preset position and a second preset position relative to the switch body. When the contact piece is located at the second preset position, the limit switch is opened and / or disconnected.

[0015] As a preferred embodiment of the above technical solution, the limit switch includes an elastic reset member, one end of the elastic reset member abuts against the switch body, and the other end of the elastic reset member abuts against the contact piece.

[0016] As a preferred embodiment of the above technical solution, the elastic return member is a return spring, which is arranged between the switch body and the contact piece, one end of the return spring abuts against the switch body, and the other end of the return spring abuts against the contact piece.

[0017] As a preferred embodiment of the above technical solution, a roller is provided at one end of the contact piece, and the position of the roller corresponds to the position of the limiting rod.

[0018] The utility model provides a brake control device for a rotary tiller, comprising: a shell, a telescopic mechanism, a drive motor and a limit switch. When braking, the drive motor drives the telescopic mechanism to move so as to tighten the brake line of the rotary tiller, and drives the limit rod to move from a first position to a second position at the same time, and the limit rod abuts against the limit switch and opens and / or disconnects the limit switch, so as to stop the drive motor, and at the same time complete the braking, prevent the brake line from continuing to tighten and damage the brake mechanism of the rotary tiller; by arranging the cooperation between the limit rod and the limit switch, damage to the brake mechanism of the rotary tiller can be avoided, and the brake control device can better adapt to the relatively harsh working environment of the rotary tiller.

[0019] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a brake control device for a rotary tiller in an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of a brake control device for a rotary tiller in an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of a brake control device for a rotary tiller in an embodiment of the utility model;

[0023] In the figure: 1. shell; 2. telescopic mechanism; 3. driving motor; 4. limit switch; 101. limit slot; 102. accommodating slot; 103. mounting portion; 104. fixed shaft; 105. fixed bracket; 201. limit rod; 301. fixing hole; 401. switch body; 402. contact piece; 403. elastic reset member; 404. roller. DETAILED DESCRIPTION

[0024] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings 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 scope of protection of the utility model.

[0025] See also Figures 1 to 3 The present utility model provides a brake control device for a rotary tiller, which is characterized by comprising:

[0026] Shell 1;

[0027] A telescopic mechanism 2, wherein the telescopic mechanism 2 is disposed in the housing 1, and the telescopic mechanism 2 is used to be connected to a brake line of the rotary tiller. The telescopic mechanism 2 is provided with a limit rod 201, and the telescopic mechanism 2 can move relative to the housing 1;

[0028] A driving motor 3, wherein the driving motor 3 is in driving connection with the telescopic mechanism 2, and the driving motor 3 can drive the limiting rod 201 to move to a first position and a second position relative to the housing 1;

[0029] The limit switch 4 is electrically connected to the drive motor 3 , and the limit switch 4 is arranged on the housing 1 . When the limit rod 201 is located at the second position, the limit rod 201 abuts against the limit switch 4 and opens and / or disconnects the limit switch 4 .

[0030] The embodiment of the utility model provides a brake control device for a rotary tiller, comprising: a shell 1, a telescopic mechanism 2, a drive motor 3 and a limit switch 4. When braking, the drive motor 3 drives the telescopic mechanism 2 to move so as to tighten the brake line of the rotary tiller, and at the same time drives the limit rod 201 to move from a first position to a second position. The limit rod 201 abuts against the limit switch 4 and opens and / or disconnects the limit switch 4, thereby stopping the drive motor 3. While completing the braking, the brake line is prevented from continuing to tighten and damaging the brake mechanism of the rotary tiller. By arranging the cooperation between the limit rod 201 and the limit switch 4, damage to the brake mechanism of the rotary tiller can be avoided, and the brake control device can better adapt to the relatively harsh working environment of the rotary tiller.

[0031] In a further feasible embodiment of the present invention, a limit slot 101 is provided on the shell 1, the limit rod 201 is inserted into the limit slot 101, the limit rod 201 can move to a first position and a second position in the limit slot 101, and the position of the limit switch 4 corresponds to the position of the limit slot 101.

[0032] In this embodiment, a limit slot 101 is provided on the shell 1, and the limit rod 201 is inserted in the limit slot 101, which can prevent the limit rod 201 from deviating from the direction during operation, resulting in failure to effectively contact the limit switch 4, thereby resulting in failure to stop the drive motor 3 in time and affecting the service life of the brake mechanism of the rotary tiller. By providing the limit slot 101, the brake control device can better adapt to the relatively harsh working environment of the rotary tiller.

[0033] In a further implementable embodiment of the present invention, a receiving groove 102 is provided on the housing 1 , and the position of the receiving groove 102 corresponds to the position of the telescopic mechanism 2 , and the receiving groove 102 is used to receive the brake line of the rotary tiller.

[0034] In this embodiment, a receiving groove 102 is provided on the shell 1, and the brake line passes through the receiving groove 102 and is connected to the first end of the telescopic mechanism 2. During the braking process, the brake line moves in the receiving groove 102. By setting the receiving groove 102, the moving trajectory of the brake line during the braking process can be limited, thereby avoiding the brake line from deviating from the position and causing a malfunction, and further enabling the brake control device to better adapt to the relatively harsh working environment of the rotary tiller.

[0035] In a further implementable embodiment of the present invention, a mounting portion 103 is provided on the housing 1 , and the mounting portion 103 is a waist-shaped hole.

[0036] In this embodiment, a mounting portion 103 is provided on the shell 1, and the brake control device is installed on the rotary tiller through the mounting portion 103. The mounting portion 103 is a waist-shaped hole, which is convenient for adjusting the position of the brake control device on the rotary tiller, so that the position of the drive motor 3, the telescopic mechanism 2 and the limit switch 4 can be adjusted, so that the moving stroke of the brake line can be adjusted to achieve the effect of adjusting the brake tightness. By providing the waist-shaped hole, it is convenient for the operator to adjust the brake tightness, which can improve the convenience of operation.

[0037] In a further implementable embodiment of the present invention, a fixing hole 301 is provided on the driving motor 3 , and a fixing shaft 104 is provided on the housing 1 , and the fixing shaft 104 is inserted into the fixing hole 301 .

[0038] In this embodiment, a fixing hole 301 is provided on the drive motor 3, and a fixing shaft 104 is provided on the shell 1. During the assembly process, the drive motor 3 is first installed at a suitable position on the shell 1, and then the fixing shaft 104 is passed through the fixing hole 301 to fix the drive motor 3 to the shell 1. This can prevent the drive motor 3 from detaching from the shell 1 during operation and causing a malfunction. Through the cooperation of the fixing shaft 104 and the fixing hole 301, the connection strength between the drive motor 3 and the shell 1 can be strengthened, thereby further enabling the brake control device to better adapt to the relatively harsh working environment of the rotary tiller.

[0039] In a further implementable embodiment of the present invention, a fixing bracket 105 is disposed on the housing 1 , and the fixing bracket 105 abuts against the driving motor 3 .

[0040] In this embodiment, during assembly, after the drive motor 3 is fixed to the shell 1 by the fixed shaft 104, the bottom of the fixed bracket 105 is abutted against the top of the drive motor 3, thereby further fixing the drive motor 3 to the shell 1. By providing the fixed bracket 105, the connection strength between the drive motor 3 and the shell 1 can be further strengthened, thereby enabling the brake control device to better adapt to the relatively harsh working environment of the rotary tiller.

[0041] In a further feasible embodiment of the present invention, the limit switch 4 includes a switch body 401 and a contact piece 402, and the contact piece 402 can rotate to a first preset position and a second preset position relative to the switch body 401. When the contact piece 402 is located at the second preset position, the limit switch 4 is opened and / or opened.

[0042] In this embodiment, the limit switch 4 includes a switch body 401 and a contact piece 402. During the braking process, the limit rod 201 moves from the first position to the second position, and the limit rod 201 will first abut against the contact piece 402, and then drive the contact piece 402 to rotate from the first preset position to the second preset position, thereby opening and / or disconnecting the limit switch 4 and stopping the drive motor 3. By setting the contact piece 402, it is easy to contact with the limit rod 201, so that the drive motor 3 can be stopped in time to avoid malfunctions, thereby further enabling the brake control device to better adapt to the harsh working environment of the rotary tiller.

[0043] In a further implementable embodiment of the present invention, the limit switch 4 includes an elastic reset member 403 , one end of the elastic reset member 403 abuts against the switch body 401 , and the other end of the elastic reset member 403 abuts against the contact piece 402 .

[0044] In this embodiment, the limit switch 4 includes an elastic reset member 403. When the limit rod 201 moves from the second position to the first position, the contact piece 402 is driven by the elastic reset member 403 to rotate from the second preset position to the first preset position, completing the reset to facilitate the next braking operation.

[0045] In a further implementable embodiment of the present invention, the elastic return member 403 is a return spring, which is arranged between the switch body 401 and the contact piece 402 , one end of the return spring abuts against the switch body 401 , and the other end of the return spring abuts against the contact piece 402 .

[0046] In this embodiment, the elastic reset member 403 is a reset spring, which has a simple and reliable structure and is easy to assemble, thereby improving service life and production efficiency.

[0047] In a further implementable embodiment of the present invention, a roller 404 is disposed at one end of the contact piece 402 , and the position of the roller 404 corresponds to the position of the limiting rod 201 .

[0048] In this embodiment, a roller 404 is provided at one end of the contact piece 402. During braking, the limit rod 201 moves from a first position to a second position. The limit rod 201 first abuts against the roller 404, and then drives the contact piece 402 to rotate from the first preset position to the second preset position. By providing the roller 404, the direct friction between the limit rod 201 and the contact piece 402 is converted into rolling friction, which can effectively improve the service life of the contact piece 402.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0051] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A brake control device for a rotary tiller, characterized in that: include: case; A telescopic mechanism, the telescopic mechanism is arranged in the housing, the telescopic mechanism is used to be connected to the brake line of the rotary tiller, the telescopic mechanism is provided with a limit rod, and the telescopic mechanism can move relative to the housing; A driving motor, the driving motor is drivingly connected to the telescopic mechanism, and the driving motor can drive the limiting rod to move to a first position and a second position relative to the housing; A limit switch, wherein the limit switch is electrically connected to the drive motor and is disposed on the housing. When the limit rod is located at the second position, the limit rod abuts against the limit switch and opens and / or disconnects the limit switch.

2. The brake control device according to claim 1, characterized in that: The housing is provided with a limit slot, the limit rod is inserted in the limit slot, the limit rod can move to a first position and a second position in the limit slot, and the position of the limit switch corresponds to the position of the limit slot.

3. The brake control device according to claim 2, characterized in that: The shell is provided with a receiving groove, the position of which corresponds to the position of the telescopic mechanism, and the receiving groove is used to receive the brake line of the rotary tiller.

4. The brake control device according to claim 3, characterized in that: The shell is provided with a mounting portion, and the mounting portion is a waist-shaped hole.

5. The brake control device according to claim 1, characterized in that: The driving motor is provided with a fixing hole, the housing is provided with a fixing shaft, and the fixing shaft is inserted into the fixing hole.

6. The brake control device according to claim 5, characterized in that: A fixing bracket is arranged on the shell, and the fixing bracket abuts against the driving motor.

7. The brake control device according to claim 1, characterized in that: The limit switch comprises a switch body and a contact piece, wherein the contact piece can rotate relative to the switch body to a first preset position and a second preset position, and when the contact piece is located at the second preset position, the limit switch is opened and / or opened.

8. The brake control device according to claim 7, characterized in that: The limit switch comprises an elastic reset member, one end of which abuts against the switch body, and the other end of which abuts against the contact piece.

9. The brake control device according to claim 8, characterized in that: The elastic return member is a return spring, which is arranged between the switch body and the contact piece. One end of the return spring abuts against the switch body, and the other end of the return spring abuts against the contact piece.

10. The brake control device according to claim 9, characterized in that: A roller is arranged at one end of the contact piece, and the position of the roller corresponds to the position of the limiting rod.

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