Adjusting arm spiral mandrel

Abstract

The utility model provides a spiral mandrel of an adjusting arm, and belongs to the technical field of automobile accessories. The adjusting arm spiral mandrel solves the problem that an existing adjusting arm spiral mandrel is high in use cost. The adjusting arm spiral mandrel comprises a mandrel body, the bottom of the outer portion of the mandrel body is sleeved with spiral teeth, the top of the mandrel body is connected with a positioning disc, the two sides of the top of the positioning disc are connected with a cooling liquid inlet pipe and a cooling liquid outlet pipe respectively, and the tops of the outer portions of the cooling liquid inlet pipe and the cooling liquid outlet pipe are movably sleeved with connecting pipes through bearings. A plurality of connecting inserting grooves are formed in the top of the exterior of the shaft body, the top of the exterior of the shaft body is sleeved with a transmission part, the transmission part comprises a plurality of connecting inserting strips, the exteriors of the connecting inserting strips are jointly connected with a gear sleeve, and a plurality of positioning bolts are arranged at the top and the bottom of the exterior of the gear sleeve. The sides, close to each other, of the multiple positioning bolts penetrate through the gear sleeve and the connecting insertion strip, and a cooling liquid flowing cavity is formed in the shaft body. The adjusting arm spiral mandrel has the advantages of low use cost and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile accessories, in particular to a spiral core shaft of an adjusting arm. Background Art

[0002] Auto parts are the various units that make up the entire car and the products that serve the car. There are many types of auto parts, including adjustment arms.

[0003] The adjusting arm is used in the braking system of the car. After multiple braking, the gear sleeve on the spiral core shaft of the adjusting arm will wear out, causing the coordination effect between it and the external transmission components to deteriorate. In order to maintain the effect, the spiral core shaft needs to be replaced as a whole, resulting in great waste and high cost of use. Summary of the Invention

[0004] The purpose of the utility model is to solve the above problems in the prior art and provide a spiral core shaft of an adjusting arm with a replaceable gear sleeve.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a spiral core shaft of an adjusting arm, comprising a shaft body, the bottom of the outer side of the shaft body is sleeved with spiral teeth, the top of the shaft body is connected to a positioning plate, the two sides of the top of the positioning plate are respectively connected to a coolant inlet pipe and a coolant outlet pipe, the tops of the outer sides of the coolant inlet pipe and the coolant outlet pipe are both provided with connecting pipes through bearing movable sleeves, the top of the outer side of the shaft body is provided with a plurality of connecting slots, the top of the outer side of the shaft body is sleeved with a transmission component, the transmission component includes a plurality of connecting strips, the outer sides of the plurality of connecting strips are commonly connected to a gear sleeve, a plurality of positioning bolts are provided on the top and bottom of the outer side of the gear sleeve, the adjacent sides of the plurality of positioning bolts pass through the gear sleeve and the connecting strip, and a coolant flow cavity is provided inside the shaft body.

[0006] The utility model cooperates with the shaft body, the transmission component and the connecting slot. After the gear sleeve is worn out after long-term use, the positioning bolts on the connecting plate are removed, the gear sleeve is pulled out from the outside of the shaft body, and a new gear sleeve is replaced with the positioning bolts.

[0007] In the aforementioned adjusting arm spiral mandrel, a connecting plate is provided on the exterior of the shaft body through a bearing sleeve. A plurality of connecting bolts are provided on the exterior of the top of the connecting plate, with the bottoms of the connecting bolts extending through the connecting plate. The cooperation between the connecting plate and the connecting bolts facilitates installation of the shaft body to the adjusting arm housing.

[0008] In the aforementioned adjusting arm spiral mandrel, the top and bottom of the inner wall of the connecting slot are provided with positioning screw holes for use with positioning bolts. The toothed sleeve is mounted on the exterior of the shaft, and the connecting strip is positioned within the connecting slot. The positioning bolts and positioning screw holes cooperate to stably secure the connecting strip within the connecting slot.

[0009] In the aforementioned adjusting arm spiral mandrel, a grease nipple is mounted on one side of the top of the connecting disc, and a plurality of oil outlet holes are formed on the outside of the connecting disc. The grease nipple and the oil outlet holes cooperate to facilitate the injection of grease from the outside into the connecting disc, which is then released by the connecting disc to provide a certain amount of lubrication between the shaft and the adjusting arm.

[0010] Compared with the existing technology, the advantages of this adjusting arm spiral mandrel are as follows: through the coordination of the shaft body, transmission components, coolant flow chamber, positioning plate, connecting pipe, coolant inlet pipe, coolant outlet pipe, connecting slot and mounting hole, after the gear sleeve is worn out due to long-term use, the positioning bolts can be removed, the gear sleeve can be pulled out from the outside of the shaft body, replaced with a new gear sleeve, and the positioning bolts can be reset in sequence, thereby reducing the cost of use. During the use of the spiral mandrel, the external coolant inlet pipe is connected to the connecting pipe on the coolant inlet pipe, and the external coolant outlet pipe is connected to the connecting pipe on the coolant outlet pipe. The coolant circulates back and forth in the coolant flow chamber, removing the heat from the shaft body, maintaining a normal temperature state, and avoiding deformation caused by excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic structural diagram of the utility model.

[0012] Figure 2 This is a schematic diagram of the transmission component structure of the utility model.

[0013] Figure 3 This is a schematic diagram of the local structure of the shaft body of the utility model.

[0014] Figure 4 This is a cross-sectional view of the shaft structure of the utility model.

[0015] In the figure: 1. spiral teeth; 2. shaft; 3. connecting plate; 4. transmission component; 41. connecting strip; 42. gear sleeve; 43. positioning bolt; 5. coolant flow chamber; 6. grease nipple; 7. positioning plate; 8. connecting pipe; 9. coolant inlet pipe; 10. coolant outlet pipe; 11. connecting slot; 12. positioning screw hole. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0017] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the spiral core shaft of the adjusting arm includes a shaft body 2, the bottom of the outside of the shaft body 2 is sleeved with a spiral tooth 1, the top of the shaft body 2 is connected to a positioning plate 7, and the two sides of the top of the positioning plate 7 are respectively connected to the coolant inlet pipe 9 and the coolant outlet pipe 10, and the top of the outside of the coolant inlet pipe 9 and the coolant outlet pipe 10 are provided with a connecting pipe 8 through a bearing movable sleeve, and a plurality of connecting slots 11 are opened at the top of the outside of the shaft body 2. The top of the outside of the shaft body 2 is sleeved with a transmission component 4, and the transmission component 4 includes a plurality of connecting strips 41, and the outside of the plurality of connecting strips 41 is commonly connected to a gear sleeve 42. The top and bottom of the outside of the gear sleeve 42 are provided with a plurality of positioning bolts 43, and the adjacent sides of the plurality of positioning bolts 43 pass through the gear sleeve 42 and the connecting strip 41, and a coolant flow cavity 5 is opened inside the shaft body 2.

[0018] A connecting plate 3 is provided on the outside of the shaft body 2 through a bearing sleeve. A plurality of connecting bolts are provided on the outside of the top of the connecting plate 3 , and the bottoms of the connecting bolts pass through the connecting plate 3 .

[0019] The top and bottom of the inner wall of the connecting slot 11 are penetrated by positioning screw holes 12 for use with positioning bolts 43. The gear sleeve 42 is mounted on the outside of the shaft body 2, and the connecting strip 41 is placed inside the connecting slot 11. A grease nipple 6 is installed on one side of the top of the connecting disk 3, and a plurality of oil outlet holes are opened on the outside of the connecting disk 3.

[0020] During use, if the gear sleeve 42 is worn out after long-term use, the positioning bolts 43 are removed, the gear sleeve 42 is pulled out from the outside of the shaft body 2, and a new gear sleeve 42 is installed, and the positioning bolts 43 are reset in sequence. During the use of the spiral mandrel, the external coolant inlet pipe is connected to the connecting pipe 8 on the coolant inlet pipe 9, and the external coolant outlet pipe is connected to the connecting pipe 8 on the coolant outlet pipe 10. The coolant circulates back and forth in the coolant flow chamber 5, removing the heat from the shaft body 2, maintaining a normal temperature state, and preventing deformation caused by excessive temperature.

[0021] Matters not described in detail in this specification constitute prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art to which the present invention relates may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A spiral core shaft of an adjusting arm, comprising a shaft body (2), characterized in that: The bottom of the shaft body (2) is sleeved with spiral teeth (1), the top of the shaft body (2) is connected to a positioning plate (7), the two sides of the top of the positioning plate (7) are respectively connected to a coolant inlet pipe (9) and a coolant outlet pipe (10), the tops of the coolant inlet pipe (9) and the coolant outlet pipe (10) are both provided with connecting pipes (8) through bearing movable sleeves, the top of the shaft body (2) is provided with a plurality of connecting slots (11), the top of the shaft body (2) is sleeved with a transmission component (4), the transmission component (4) includes a plurality of connecting strips (41), the outsides of the plurality of connecting strips (41) are commonly connected to a gear sleeve (42), the top and bottom of the outside of the gear sleeve (42) are provided with a plurality of positioning bolts (43), the adjacent sides of the plurality of positioning bolts (43) all pass through the gear sleeve (42) and the connecting strip (41), and the inside of the shaft body (2) is provided with a coolant flow cavity (5).

2. The spiral mandrel of an adjusting arm according to claim 1, characterized in that: The outside of the shaft body (2) is provided with a connecting disk (3) via a bearing movable sleeve, and a plurality of connecting bolts are provided on the outside of the top of the connecting disk (3), and the bottoms of the connecting bolts pass through the connecting disk (3).

3. The spiral mandrel of an adjusting arm according to claim 2, characterized in that: The top and bottom of the inner wall of the connecting slot (11) are penetrated by positioning screw holes (12) for use with positioning bolts (43), the gear sleeve (42) is sleeved on the outside of the shaft body (2), and the connecting strip (41) is placed inside the connecting slot (11).

4. The spiral mandrel of an adjusting arm according to claim 3, characterized in that: A grease nipple (6) is installed on one side of the top of the connecting plate (3), and a plurality of oil outlet holes are opened on the outside of the connecting plate (3).

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