CN216734539U - Tensioning device of tracked vehicle - Google Patents
Tensioning device of tracked vehicle Download PDFInfo
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- CN216734539U CN216734539U CN202220348248.7U CN202220348248U CN216734539U CN 216734539 U CN216734539 U CN 216734539U CN 202220348248 U CN202220348248 U CN 202220348248U CN 216734539 U CN216734539 U CN 216734539U
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- connecting shaft
- adjusting
- rod
- point
- crank arm
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Abstract
The utility model discloses a tensioning device of a tracked vehicle, which mainly comprises a connecting shaft, a crank arm, an inducer, a locking nut, an adjusting seat, a fixed seat, an adjusting rod, a balancing rod, a buffer device and the like. The utility model adopts the adjusting rod, the balance rod and the buffer device to form a floating type adjusting mechanism, adopts the crank arm and the connecting shaft to form a guide structure form, ensures the normal motion of the adjusting mechanism and the sealing in the vehicle body under the condition that one end of the adjusting rod is fixed and one end of the adjusting rod does circular motion, enables the balance rod on the inner side of the vehicle body to rotate through the adjusting rod, and drives the crank arm on the outer side of the vehicle body to rotate through the connecting shaft connected with the balance rod, thereby leading the inducing wheel arranged on the crank arm to do circular motion and realizing the tensioning or loosening of the crawler.
Description
Technical Field
The utility model relates to a track tensioning device of a tracked vehicle, belonging to the technical field of vehicle engineering.
Background
For tracked vehicles, the inducer is moved by the tensioner as the track is tensioned or loosened. The tensioner determines the direction of movement of the inducer and transmits a portion of the track tension to the vehicle body. Most of the crawler propelling devices all use linear type tensioning devices, and aiming at large-tonnage crawler vehicles, the weight borne by the inducer arranged on the cantilever is large, and the working reliability of the crawler cannot be guaranteed due to the linear type. Meanwhile, the unilateral crank arm adjusting mechanism is complex in structure, large in occupied arrangement space and difficult to adjust, and time is consumed during regular maintenance.
Disclosure of Invention
The utility model aims to provide the tensioning device of the tracked vehicle, which has the advantages of high reliability of the tensioning mechanism, simple tensioning mechanism, small occupied space, convenience and time saving in adjustment, easiness in maintenance and certain waterproof function.
The technical scheme of the utility model is as follows:
a tensioning device of a tracked vehicle is connected with an inducer of the tracked vehicle and is positioned on one side of the axis direction of the inducer, and comprises a tension device,
the first end of the crank arm is connected with the inducer;
the first end of the connecting shaft is connected with the second end of the crank arm;
the balance rod is connected with the second end of the connecting shaft, and the connecting point is a first connecting point;
the first end of the adjusting rod is hinged with the first end of the balancing rod, and the hinged point is a first hinged point;
the first connecting point, the first hinge point and the second hinge point are positioned on the balancing rod, and the first connecting point is positioned between the first hinge point and the second hinge point;
the adjusting seat is tightly attached to the fixed seat, and the second end of the adjusting rod penetrates through the adjusting seat and the fixed seat;
the locking nut is in threaded connection with the second end of the adjusting rod and is tightly attached to the surface of the adjusting seat, and the linear distance from the locking nut to the first hinge point is greater than the linear distance from the adjusting seat to the first hinge point;
the first end of the buffer device is hinged with the second end of the balancing rod, the hinge point is a second hinge point, and the length of the buffer device is variable;
the linear distance from the fixed seat to the first connecting point, the linear distance from the second end of the buffer device to the first connecting point and the linear distance from the fixed seat to the second end of the buffer device are fixed values.
As an alternative, the tensioning device of the tracked vehicle also comprises,
and the supporting cover is sleeved on the connecting shaft, is close to the first end of the connecting shaft and is far away from the second end of the connecting shaft.
As an alternative, the tensioning device of the tracked vehicle also comprises,
the connecting shaft penetrates through the first mounting plate, and one end of the supporting cover is connected to the first mounting plate.
As an alternative, the tensioning device of the tracked vehicle also comprises,
the second mounting panel, fixing base fixed connection is on the surface of second mounting panel, buffer's second end is connected on the surface of second mounting panel, and fixing base and buffer are located the different sides of second mounting panel respectively, the second end of adjusting the pole runs through the second mounting panel.
As an alternative, the tensioning device of the tracked vehicle also comprises,
and the fixing bolts are respectively positioned on the first end face and the second end face of the connecting shaft.
Alternatively, the first end of the connecting shaft is connected with the crank arm through a spline, and the second end of the connecting shaft is connected with the balance bar through a spline.
Alternatively, the adjusting seat and the fixed seat are tightly attached through spherical fit.
Alternatively, the damping means is a spring.
Alternatively, the axis of the connecting shaft is parallel to the axis of the inducer, and the crank arm is perpendicular to the connecting shaft.
Alternatively, the first end of the crank arm is connected at the center of the inducer.
The crawler tensioning device adopts a rotating structure form of crank arms at two sides, and the balance rod at the inner side of the vehicle body is rotated by adjusting the movement of the floating type adjusting rod to drive the crank arm at the other side connected with the inducer to rotate, so that the inducer is forced to do circular motion, and the tensioning or loosening function of the crawler is realized.
The utility model enables the guide device to transfer the tension force of part of the track to the vehicle body through a double-side supporting structure form, and adopts an adjusting rod (screw rod) mechanism which adjusts the tension of the other side by one side, thereby simplifying the structure and having reliable work. The adjusting mechanism is matched in a spherical floating mode, so that one end of the adjusting rod can be fixed, and the other end of the adjusting rod can do circular motion, the problem of interference and clamping stagnation of nonlinear motion of the adjusting rod in the adjusting process of the tensioning device is solved, and the sealing problem of the external adjusting mechanism and a vehicle body is also ensured. When the vehicle runs in wading, the sealing of the vehicle body and the tensioning force of the track are both guaranteed, and the working reliability of the tensioning of the track is improved.
Compared with the prior art, the track tensioning device is suitable for tensioning and loosening adjustment of a track, a floating type adjusting mechanism is formed by matching an adjusting rod (generally a screw rod) with a balance rod and a buffer device, a guide structure form is formed by a crank arm and a connecting shaft, normal movement of the adjusting mechanism and sealing in a vehicle body are guaranteed under the condition that one end of the adjusting rod is fixed and one end of the adjusting rod does circular movement, the balance rod on the inner side of the vehicle body rotates through the adjusting rod, the connecting shaft connected with the balance rod drives the crank arm on the outer side of the vehicle body to rotate, so that an inducing wheel arranged on the crank arm does circular motion, and tensioning or loosening of the track is realized.
Drawings
FIG. 1 is a schematic view of a tensioner;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is an enlarged view of a portion of the connecting shaft of FIG. 1 supporting the crank arm;
FIG. 4 is a top view of the tensioner;
in the figure, 1, a connecting shaft; 2. a support cover; 3. a crank arm; 4. an inducer; 5. locking the nut; 6. an adjusting seat; 7. a fixed seat; 8. adjusting a rod; 9. a connecting pin; 10. a balancing pole; 11. fixing the bolt; 12. a buffer device.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but it should not be understood that the scope of the subject matter of the present invention is limited to the following embodiments, and various modifications, substitutions and alterations made based on the common technical knowledge and conventional means in the art without departing from the technical idea of the present invention are included in the scope of the present invention.
Referring to fig. 1 to 4, the track tensioning device of the utility model mainly comprises a connecting shaft 1, a supporting cover 2, a crank arm 3, an inducer 4, a locking nut 5, an adjusting seat 6, a fixed seat 7, an adjusting rod 8, a connecting pin 9, a balancing pole 10, a fixing bolt 11, a buffer device 12 and the like.
The track tensioning device adopts the crank arm 3 as a guide device to guide the shaft of the inducer 4 to move along an arc, the other end of the guide device is connected with the adjusting rod 8 (a screw rod is selected for use) through the connecting shaft 1, the rotating angle control of the inducer 4 is realized by the extension and retraction of the adjusting rod 8, the balancing rod 10 is used as a buffer device 12 through a spring to adjust the rotating angle of the connecting shaft 1 and fix the connecting shaft, so that the inducer 4 is stably fixed at a required position, and the tensioning requirement of the track is met.
Referring to fig. 1 to 4, the main components of the track tensioning mechanism include a connecting shaft 1, a supporting cover 2, a crank arm 3, an inducer 4, a locking nut 5, an adjusting seat 6, a fixing seat 7, a screw (adjusting rod 8), a connecting pin 9, a balancing rod 10, a fixing bolt 11, a spring (buffer device 12), a first mounting plate and a second mounting plate, wherein:
the first mounting plate and the second mounting plate are vertically connected to form a mounting shell of the tensioning device, the connecting shaft 1, the adjusting rod 8, the connecting pin 9, the balancing rod 10 and the buffer device 12 are positioned inside the mounting shell (inside a vehicle body), and the locking nut 5, the adjusting seat 6, the fixed seat 7, the supporting cover 2 and the crank arm 3 are positioned outside the mounting shell;
the supporting cover 2 is positioned between the crank arm 3 and the first mounting plate, the connecting shaft 1 is positioned in the supporting cover 2, and one end of the supporting cover 2 is fixed on the surface of the first mounting plate;
the crank arm 3 can be a linear rod or a curved rod, the crank arm 3 comprises a first end and a second end, and the first end of the crank arm 3 is connected with the central axis position of the inducer 4;
the first end of the connecting shaft 1 is connected with the second end of the crank arm 3, the axis of the connecting shaft 1 is parallel to the central axis of the inducer 4, and splines are arranged on the first end and the second end of the connecting shaft 1 and are respectively used for being connected with the balance rod 10 and the crank arm 3;
a connecting hole is formed in the balance rod 10, the balance rod 10 is connected with the second end, provided with the spline, of the connecting shaft 1 through the connecting hole, and the connecting point is a first connecting point;
the fixing bolt 11 is used for fixedly mounting the connecting shaft 1, the balance rod 10 and the crank arm 3 in the axial direction of the connecting shaft 1;
the adjusting rod 8 is a screw rod with a hinge hole at a first end and a thread at a second end, the first end of the adjusting rod 8 is hinged with the first end of the balancing rod 10 through a connecting pin 9, and the hinge point is a first hinge point;
the first connecting point, the first hinge point and the second hinge point are positioned on the balance bar 10, the first connecting point is positioned between the first hinge point and the second hinge point, and the first hinge point and the second hinge point can rotate clockwise or anticlockwise around the first connecting point;
the adjusting seat 6 and the fixed seat 7 are tightly fitted through a spherical surface, so that the position of the adjusting rod 8 can be conveniently adjusted while a sealing surface is formed, through holes are formed in the adjusting seat 6 and the fixed seat 7, the second end of the adjusting rod 8 penetrates through the through holes in the adjusting seat 6 and the fixed seat 7, the fixed seat 7 is fixed on the surface of a second mounting plate, the second mounting plate is also provided with through holes, and the adjusting rod 8 penetrates through the through holes;
the locking nut 5 is in threaded connection with a second end with threads on the adjusting rod 8 and is tightly attached to the surface of the adjusting seat 6, the linear distance from the locking nut 5 to a first hinge point is greater than the linear distance from the adjusting seat 6 to the first hinge point, and the locking nut 5 adjusts the movement of the adjusting rod 8 relative to the adjusting seat 6 and the fixed seat 7 through rotation on the adjusting rod 8;
the buffer device 12 adopts a cylindrical spring, the first end of the cylindrical spring is hinged with the second end of the balancing rod 10 through a connecting block and a connecting pin 9, the hinge point is a second hinge point, the second end of the cylindrical spring is hinged with another connecting block, the connecting block is fixed on a second mounting plate, the length of the cylindrical spring is variable, and the effect of compression buffer or stretching buffer is achieved through the deformation in the length direction;
the linear distance from the fixed seat 7 to the first connection point, the linear distance from the second end of the buffer device 12 to the first connection point, and the linear distance from the fixed seat 7 to the second end of the buffer device 12 are fixed values, that is, the fixed seat 7, the second end of the buffer device 12, and the first connection point are located at three vertexes of a fixed triangle, and the positions are kept unchanged.
When the crawler belt is sleeved in the inducer 4, the tensioning and loosening adjustment of the crawler belt is realized by moving the inducer 4 to do circular motion (taking the connecting shaft 1 as a rotating axis).
As shown in fig. 2, during tensioning adjustment, the lock nut 5 is pulled to rotate clockwise, the adjusting rod 8 penetrates through the fixing seat 7 and the adjusting seat 6 to extend outwards (the left side of the second mounting plate is the outer side in fig. 2), the balancing rod 10 is driven to rotate anticlockwise, the connecting shaft 1 is driven to rotate through the spline, the connecting shaft 1 drives the crank arm 3 to rotate through the spline, the inducer 4 is driven to do circular arc motion, the crawler is induced to move outwards, and the purpose of tensioning the crawler is achieved.
As shown in figure 2, when the adjustment is loosened, the locking nut 5 is pulled to rotate along the anticlockwise direction, the adjusting rod 8 penetrates through the fixed seat 7 and the adjusting seat 6 to move inwards, the balancing rod 10 is driven to rotate clockwise, the connecting shaft 1 is driven to rotate through the spline, the connecting shaft 1 drives the crank arm 3 to rotate through the spline, the inducer 4 is driven to do circular arc motion, the crawler is induced to move inwards, and the purpose of loosening the crawler is achieved.
The buffer device 12 can keep the balance bar 10 at a certain counter torque to keep the adjusting base 6 in certain stress contact with the fixed base 7, and the sealing purpose is achieved through spherical matching between the adjusting base 6 and the fixed base 7 under the condition that the normal work of the adjusting rod 8 is ensured. The spherical surface matching can prevent water from entering the interior of the vehicle body through the clearance of the adjusting mechanism when the vehicle wades to run.
The crawler tensioning device is different from the traditional linear tensioning device and is suitable for tensioning and loosening adjustment of a crawler, a floating type adjusting mechanism is formed by matching an adjusting rod 8 with a balance rod 10 and a buffer device 12, a guide structure form is formed by a crank arm 3 and a connecting shaft 1, the normal movement of the adjusting mechanism and the sealing of the tensioning device in a vehicle body are ensured under the condition that one end of the adjusting rod 8 is fixed and one end of the adjusting rod does circular movement, the balance rod 10 on the inner side of the vehicle body is rotated by the adjusting rod 8, and the connecting shaft 1 connected with the balance rod 10 drives the crank arm 3 on the outer side of the vehicle body to rotate, so that an inducer 4 arranged on the crank arm 3 does circular motion, and tensioning or loosening of the crawler is realized.
Claims (10)
1. A tensioning device of a tracked vehicle, associated with an inducer (4) of the tracked vehicle, characterized in that: is positioned at one side of the axis direction of the inducer (4) and comprises,
the first end of the crank arm (3) is connected with the inducer (4);
the first end of the connecting shaft (1) is connected with the second end of the crank arm (3);
the balance rod (10), the balance rod (10) is connected with the second end of the connecting shaft (1), and the connecting point is a first connecting point;
the first end of the adjusting rod (8) is hinged with the first end of the balancing rod (10), and the hinged point is a first hinged point;
the first connecting point, the first hinge point and the second hinge point are positioned on the balancing rod (10), and the first connecting point is positioned between the first hinge point and the second hinge point;
the adjusting device comprises an adjusting seat (6) and a fixed seat (7), wherein the adjusting seat (6) is tightly attached to the fixed seat (7), and the second end of the adjusting rod (8) penetrates through the adjusting seat (6) and the fixed seat (7);
the locking nut (5) is in threaded connection with the second end of the adjusting rod (8) and is tightly attached to the surface of the adjusting seat (6), and the linear distance from the locking nut (5) to the first hinge point is larger than the linear distance from the adjusting seat (6) to the first hinge point;
the first end of the buffer device (12) is hinged with the second end of the balance bar (10), the hinged point is a second hinged point, and the length of the buffer device (12) is variable;
the linear distance from the fixed seat (7) to the first connecting point, the linear distance from the second end of the buffer device (12) to the first connecting point and the linear distance from the fixed seat (7) to the second end of the buffer device (12) are fixed values.
2. Tensioner according to claim 1, characterized in that: also comprises the following steps of (1) preparing,
the supporting cover (2) is sleeved on the connecting shaft (1), is close to the first end of the connecting shaft (1) and is far away from the second end of the connecting shaft (1).
3. A tensioner for a track vehicle as claimed in claim 2, wherein: also comprises the following steps of (1) preparing,
the connecting shaft (1) penetrates through the first mounting plate, and one end of the supporting cover (2) is connected to the first mounting plate.
4. Tensioner according to claim 1, characterized in that: also comprises the following steps of (1) preparing,
the second mounting panel, fixing base (7) fixed connection is on the surface of second mounting panel, the second end of buffer (12) is connected on the surface of second mounting panel, and fixing base (7) and buffer (12) are located the different sides of second mounting panel respectively, the second end of adjusting pole (8) runs through the second mounting panel.
5. Tensioner according to claim 1, characterized in that: also comprises the following steps of (1) preparing,
and the fixing bolts (11) are respectively positioned on the first end face and the second end face of the connecting shaft (1).
6. Tensioner according to claim 1, characterized in that: the first end of the connecting shaft (1) is connected with the crank arm (3) through a spline, and the second end of the connecting shaft (1) is connected with the balance bar (10) through a spline.
7. Tensioner according to claim 1, characterized in that: the adjusting seat (6) and the fixing seat (7) are tightly attached through spherical surface matching.
8. Tensioner according to claim 1, characterized in that: the buffer device (12) is a spring.
9. Tensioner according to claim 1, characterized in that: the axis of the connecting shaft (1) is parallel to the axis of the inducer (4), and the crank arm (3) is perpendicular to the connecting shaft (1).
10. Tensioner according to claim 1, characterized in that: the first end of the crank arm (3) is connected to the center of the inducer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220348248.7U CN216734539U (en) | 2022-02-21 | 2022-02-21 | Tensioning device of tracked vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220348248.7U CN216734539U (en) | 2022-02-21 | 2022-02-21 | Tensioning device of tracked vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216734539U true CN216734539U (en) | 2022-06-14 |
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ID=81919639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220348248.7U Active CN216734539U (en) | 2022-02-21 | 2022-02-21 | Tensioning device of tracked vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216734539U (en) |
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2022
- 2022-02-21 CN CN202220348248.7U patent/CN216734539U/en active Active
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