Tractor hand accelerator cable mounting structure and tractor

Abstract

The utility model relates to a tractor hand throttle cable installation structure and a tractor, and relates to the tractor field, the tractor hand throttle cable installation structure comprises a cable, the cable comprises a cable core and a sheath, the sheath is slidably sleeved in the middle of the cable core, and the sheath comprises a first guide sleeve, a flexible sleeve and a second guide sleeve which are fixedly connected in sequence; the first guide sleeve is used for being fixedly connected with a first stay wire fixing frame, one end of the first guide sleeve is bent towards the hand accelerator stay wire connecting end of the hand accelerator, and the second guide sleeve is used for being fixedly connected with a second stay wire fixing frame. The beneficial effects of the utility model are that the first guide sleeve is changed from an original linear structure into a bending structure and follows the trend of the wire core, so that the included angle between the wire core and the end part of the first guide sleeve is reduced or the wire core is parallel to the end part of the first guide sleeve, thereby reducing the abrasion and fracture of the wire core and the first guide sleeve. The tractor stay wire is particularly suitable for tractors with severe and complex working conditions. The practicability and reliability of the stay wire are improved, and the service life of the stay wire is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to tractor field, concretely relates to a tractor hand throttle pull wire mounting structure and tractor. BACKGROUND

[0002] The hand throttle of tractor is driven through the throttle pull wire support of engine, and the middle part of pull wire is installed on the first pull wire fixed frame of tractor, in part model, the cabin structure is compact (for example, the national second small horsepower tractor model), the connecting point of hand throttle and pull wire and the installation point of pull wire on the first pull wire fixed frame exist height difference, the wire core and the end of guide sleeve of pull wire are a certain angle, and the repeated movement of wire core can easily cause the wire core abrasion, breakage. SUMMARY

[0003] The utility model solves the technical problem of how to reduce the wire core abrasion.

[0004] The utility model discloses a tractor hand throttle pull wire mounting structure, including pull wire, the pull wire includes wire core and sheath, the sheath is slidably sleeved in the middle part of wire core, the sheath includes the first guide sleeve, flexible sleeve and second guide sleeve that fixed connection follows, the first guide sleeve is used to with the fixed connection of first pull wire fixed frame, the one end of first guide sleeve is bent to the hand throttle pull wire connecting end of hand throttle, the second guide sleeve is used to with the fixed connection of second pull wire fixed frame.

[0005] The utility model has the advantages that the first guide sleeve changes from the original straight line structure to the bending structure, complies with the trend of wire core, makes the wire core and the first guide sleeve end part angle reduce or parallel, thereby reducing the wire core and the first guide sleeve abrasion breakage, improves the practicability and reliability of pull wire, prolongs the service life, and is especially suitable for tractor in the harsh and complex working condition, wherein the sheath is used to protect the middle part of wire core.

[0006] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0007] Further, the included angle of the two ends of the first guide sleeve is 150 °.

[0008] Further, the pull wire further includes two dust caps, the dust caps are sleeved on the wire core, and the two dust caps are detachably connected with the two ends of the sheath.

[0009] The beneficial effects of the above further scheme are that the dust caps are arranged at the two ends of the sheath to reduce or avoid the entry of dust or sundries into the end of the sheath.

[0010] Further, one end of the wire core is fixedly connected with a first connecting head, and the first connecting head is used for detachable connection with the hand throttle pull wire connecting end.

[0011] The beneficial effect of the further scheme is that the first connecting head is detachably connected with the hand throttle pull wire connecting end, and the disassembly and assembly are convenient.

[0012] Further, the other end of the wire core is fixedly connected with a second connecting head, and the second connecting head is used for detachable connection with an engine throttle pull wire support.

[0013] Further, a pull wire fixing seat is fixedly installed on the throttle pull wire support, and the second connecting head is screwedly connected with the pull wire fixing seat.

[0014] The beneficial effect of the further scheme is that, compared with the existing structure in which a nut is used to compress the wire core, the screw connection structure of the second connecting head is firm, is suitable for operation under harsh working conditions, and cannot cause the wire core to be loose or even to be broken away. In addition, the length of the wire core can be adjusted within the length range of the screw thread, the stroke requirement of different engine fuel injection pumps can be met, and the adaptability is improved.

[0015] Further, the material of the wire core is stainless steel.

[0016] Further, the surface of the wire core has a layer of lubricating grease.

[0017] The beneficial effect of the further scheme is that the lubricating grease is coated on the surface of the wire core, the friction of the wire core is reduced, the wire core is protected, and the operating force is reduced.

[0018] Further, the two end portions of the wire core have a tin layer.

[0019] The beneficial effect of the further scheme is that the end portions of the wire core are treated with tin, the steel wire bundle can be reinforced, and the steel wire can be prevented from being scattered.

[0020] The utility model also provides a tractor, which comprises the tractor hand throttle pull wire mounting structure. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a hand throttle and pull wire connection structure diagram of the tractor hand throttle pull wire mounting structure of the utility model;

[0022] Figure 2 It is Figure 1 It is an enlarged view of A of the first guide sleeve;

[0023] Figure 3 It is an engine and pull wire connection structure diagram of the tractor hand throttle pull wire mounting structure of the utility model;

[0024] Figure 4 It isFigure 3 Enlarged view of the throttle pull cable support at B;

[0025] Figure 5 Structure diagram of the pull cable, with the dust cap on the left side in a detached state, showing the connection structure of the dust cap and the sheath;

[0026] Figure 6 Structure diagram of the first guide sleeve of the prior art.

[0027] In the drawings, the components represented by each reference numeral are listed as follows:

[0028] 1. Pull cable; 101. Core; 102. Sheath; 1021. First guide sleeve; 1022. Flexible sleeve; 1023. Second guide sleeve; 103. Dust cap; 104. First connecting head; 105. Second connecting head;

[0029] 2. First pull cable fixing bracket;

[0030] 3. Hand throttle; 301. Hand throttle pull cable connecting end;

[0031] 4. Second pull cable fixing bracket;

[0032] 5. Engine; 501. Throttle pull cable support; 502. Pull cable fixing seat. DETAILED DESCRIPTION

[0033] The principles and features of the present application are described below in conjunction with the drawings, and the examples are used only to explain the present application and are not intended to limit the scope of the present application.

[0034] As shown in Figure 6 , the first guide sleeve 1021 of the prior art is a straight cylinder. Since the first guide sleeve 1021 has a height difference with the hand throttle pull cable connecting end 301 of the hand throttle 3, the core 101 of the pull cable 1 is at an angle with the end of the first guide sleeve 1021, and repeated movement of the core 101 can easily cause the core 101 to wear out and break.

[0035] Example One

[0036] As shown in Figures 1-5 , the present embodiment provides a tractor hand throttle pull cable installation structure, which comprises a pull cable 1, the pull cable 1 comprising a core 101 and a sheath 102, the sheath 102 being slidably sleeved on the middle part of the core 101, the sheath 102 comprising a first guide sleeve 1021, a flexible sleeve 1022 and a second guide sleeve 1023 fixedly connected in sequence, the first guide sleeve 1021 being used for fixed connection with a first pull cable fixing bracket 2, one end of the first guide sleeve 1021 being bent towards a hand throttle pull cable connecting end 301 of a hand throttle 3, and the second guide sleeve 1023 being used for fixed connection with a second pull cable fixing bracket 4.

[0037] The first guide sleeve 1021 is changed from the original straight structure to a bent structure, which conforms to the trend of the wire core 101, so that the angle between the wire core 101 and the end of the first guide sleeve 1021 is reduced or parallel, thereby reducing the wear and breakage of the wire core 101 and the first guide sleeve 1021. The practicability and reliability of the pull wire 1 are improved, the service life is prolonged, and it is especially suitable for tractors in harsh and complex working conditions. The sheath 102 is used to protect the middle part of the wire core 101.

[0038] Specifically, the first guide sleeve 1021 and the second guide sleeve 1023 are both rigid structures.

[0039] On the basis of the above technical scheme, the included angle between the two ends of the first guide sleeve 1021 is 150°.

[0040] On the basis of the above technical scheme, the pull wire 1 further comprises two dust caps 103, the dust caps 103 are sleeved on the wire core 101, and the two dust caps 103 are detachably connected with the two ends of the sheath 102.

[0041] The dust caps 103 are arranged at the two ends of the sheath 102, which reduces or avoids the entry of dust or sundries into the end of the sheath 102.

[0042] Specifically, as shown in Figure 5 The two dust caps 103 are threadedly connected with the ends of the first guide sleeve 1021 and the second guide sleeve 1023, respectively.

[0043] On the basis of the above technical scheme, one end of the wire core 101 is fixedly connected with a first connecting head 104, and the first connecting head 104 is used for detachable connection with the hand throttle pull wire connecting end 301.

[0044] The first connecting head 104 is detachably connected with the hand throttle pull wire connecting end 301, which is convenient to disassemble and assemble.

[0045] Specifically, the first connecting head 104 has an external thread, and the first connecting head 104 is threadedly connected with the hand throttle pull wire connecting end 301.

[0046] On the basis of the above technical scheme, the other end of the wire core 101 is fixedly connected with a second connecting head 105, and the second connecting head 105 is used for detachable connection with the throttle pull wire support 501 of the engine 5.

[0047] On the basis of the above technical scheme, specifically, a pull wire fixing seat 502 is fixedly installed on the throttle pull wire support 501, and the second connecting head 105 is threadedly connected with the pull wire fixing seat 502.

[0048] In the prior art, the wire core 101 is pressed between the nut and the pull wire fixing seat 502 by a screwed bolt nut, and after long use time, the wire core 101 will appear loose and break free, resulting in out-of-control of the throttle stroke. Compared with the prior art structure of pressing the wire core 101 by a nut, the threaded connection structure of the second connecting head 105 is fixed firmly and is suitable for operation under harsh working conditions. The wire core 101 will not appear loose or even break free. And within the length range of the thread, the length of the wire core 101 can be moderately adjusted to adapt to the stroke requirements of different engine fuel pumps and improve the adaptability.

[0049] On the basis of the above technical scheme, the material of the wire core 101 is stainless steel.

[0050] On the basis of the above technical scheme, the surface of the wire core 101 has a layer of lubricating grease.

[0051] The wire core 101 is coated with lubricating grease on the surface, which reduces the friction of the wire core 101, protects the wire core 101, and reduces the operating force.

[0052] Specifically, the surface of the wire core 101 is coated with lithium-based lubricating grease or other types of lubricating grease.

[0053] On the basis of the above technical scheme, the two ends of the wire core 101 have a tin layer.

[0054] Specifically, the wire core 101 is tin-coated at the end, which can reinforce the steel wire bundle and prevent the steel wire from scattering.

[0055] Embodiment two

[0056] The embodiment also provides a tractor comprising the tractor hand throttle pull wire mounting structure of the first embodiment.

[0057] In the description of the present application, it should be pointed out that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0058] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0059] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, a person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0060] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0061] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tractor driver's throttle cable installation structure, characterized in that: The invention comprises a pull wire (1), wherein the pull wire (1) comprises a wire core (101) and a sheath (102), wherein the sheath (102) is slidably sleeved on the middle part of the wire core (101), and wherein the sheath (102) comprises a first guide sleeve (1021), a flexible sleeve (1022) and a second guide sleeve (1023) which are fixedly connected in sequence, wherein the first guide sleeve (1021) is used for being fixedly connected to a first pull wire fixing frame (2), wherein one end of the first guide sleeve (1021) is bent toward a hand throttle pull wire connection end (301) of a hand throttle (3), and the second guide sleeve (1023) is used for being fixedly connected to a second pull wire fixing frame (4).

2. A tractor driver throttle cable installation structure according to claim 1, characterized in that: The included angle between the two ends of the first guide sleeve (1021) is 150°.

3. The tractor driver throttle cable installation structure according to claim 1, characterized in that: The pull wire (1) further comprises two dust caps (103), the dust caps (103) being sleeved outside the wire core (101), and the two dust caps (103) being detachably connected to the two ends of the sheath (102).

4. A tractor driver throttle cable installation structure according to claim 1, characterized in that: One end of the wire core (101) is fixedly connected to a first connector (104), and the first connector (104) is used for detachably connecting to the hand throttle cable connection end (301).

5. The tractor driver's throttle cable installation structure according to claim 1, characterized in that: The other end of the wire core (101) is fixedly connected to a second connector (105), and the second connector (105) is used for detachably connecting to a throttle cable bracket (501) of the engine (5).

6. A tractor driver's throttle cable installation structure according to claim 5, characterized in that: A cable fixing seat (502) is fixedly mounted on the throttle cable bracket (501), and the second connector (105) is threadedly connected to the cable fixing seat (502).

7. The tractor driver throttle cable installation structure according to claim 1, characterized in that: The material of the wire core (101) is stainless steel.

8. The tractor driver's throttle cable installation structure according to claim 1, characterized in that: The surface of the wire core (101) is provided with a grease layer.

9. A tractor driver's throttle cable installation structure according to any one of claims 1 to 8, characterized in that: Both ends of the wire core (101) are provided with a tin layer.

10. A tractor, characterized in that: The invention comprises a tractor driver's throttle cable installation structure as described in any one of claims 1 to 9.

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