CN216447018U - Throttle control device for excavator - Google Patents
Throttle control device for excavator Download PDFInfo
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- CN216447018U CN216447018U CN202123265293.0U CN202123265293U CN216447018U CN 216447018 U CN216447018 U CN 216447018U CN 202123265293 U CN202123265293 U CN 202123265293U CN 216447018 U CN216447018 U CN 216447018U
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- support plate
- damping
- supporting plate
- excavator
- spring
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Abstract
The utility model discloses an accelerator control device for an excavator, which comprises an operating handle (21), a support plate (22) and an accelerator flexible shaft (23); further comprising a locking assembly (3); one end of an operating handle (21) is fixedly arranged on one end of a supporting plate (22) of the bending structure and drives the supporting plate (22) to rotate around the bending position of the supporting plate at a limiting angle on the supporting main body; the other end of the supporting plate (22) is rotationally connected with an accelerator flexible shaft (23); the locking assembly (3) comprises a spring (32) and a damping flap (31); the spring (32) exerts an elastic force on the damping flap (31) and causes the damping flap (31) to press against the support plate (22). The throttle control device for the excavator is simple in structure, realizes locking when the supporting plate rotates, has a damping effect, and ensures that the throttle motor is in a stable power output state.
Description
Technical Field
The utility model relates to the field of engineering machinery, in particular to an accelerator control device for an excavator.
Background
The control system of the excavator has higher use requirements because the excavator is often operated in a severe operation environment; in order to provide enough power, the throttle of the existing excavator mainly controls an operating rod manually, namely the operating rod is connected with a throttle pull rod, and the oil supply amount of a throttle motor is controlled by controlling the stretching of the throttle pull rod, so that the throttle motor has different output power;
under severe and variable operation load, the accelerator pull rod of the excavator is easy to loosen, and the accelerator motor cannot be kept in stable power output.
Disclosure of Invention
The utility model provides an accelerator control device for an excavator, which is simple in structure, realizes locking of a support plate during rotation, has a damping effect and ensures that an accelerator motor is in a stable power output state.
In order to achieve the purpose, the throttle control device for the excavator comprises an operating handle, a supporting plate and a throttle flexible shaft; the locking assembly is further included;
one end of the operating handle is fixedly arranged on one end of the supporting plate of the bending structure and drives the supporting plate to rotate around the bending position of the supporting plate at a limiting angle on the supporting main body;
the other end of the supporting plate is rotationally connected with the accelerator flexible shaft;
the locking assembly comprises a spring and a damping baffle; the spring acts on the damping baffle plate by elasticity and enables the damping baffle plate to tightly press the supporting plate.
Furthermore, a shaft sleeve is arranged at the bending part of the supporting plate, and the shaft sleeve is sleeved on a supporting main shaft on the support main body in a matching manner;
damping separation blade and spring from supreme suit in proper order down are sheathe in the axle sleeve to carry out spacing fixedly through spacing subassembly.
Furthermore, the limiting assembly comprises a supporting sheet and a fixing screw rod;
the supporting main shaft is provided with an internal thread;
one end of the fixed screw penetrates through the supporting sheet, the spring and the damping retaining sheet in sequence and is installed on the internal thread in a threaded mode.
Furthermore, the damping separation blade is provided with a clamping groove, and the clamping groove is clamped on a positioning pin on the support main body, so that the damping separation blade is circumferentially limited when the support plate rotates.
Further, the supporting plate is of an L-shaped structure;
the bracket main body is provided with a pair of limiting assemblies respectively positioned at two sides of the supporting plate, and each group of limiting assemblies comprises a second fixing block fixed on the bracket main body and a limiting rod installed on the second fixing block in a threaded manner;
when the supporting plate rotates to the limit position, the limiting rod is in contact with the supporting plate.
Furthermore, a first fixed block is arranged on the support main body, and a notch matched with the middle part of the accelerator flexible shaft is formed in the first fixed block.
Compared with the prior art, the throttle control device for the excavator is characterized in that the locking assembly is arranged at the bending position of the support plate, the spring always applies elastic force on the damping retaining piece and acts on the support plate through the damping retaining piece, and when the support plate rotates, the support plate is subjected to the friction force converted from the elastic force, so that the support plate can be locked on the support main shaft, and the unstable condition caused by overlarge vibration during working is avoided;
on the other hand, a clamping groove at one end of the damping separation blade is clamped on the positioning pin to realize circumferential limiting of the damping separation blade, so that the damping sense is better when the support plate rotates relative to the support main shaft, the locking effect of the spring on the support plate is ensured, and the accelerator motor is in a stable power output state;
because the two sides of the support plate are respectively provided with the limiting assemblies on the support main body, when the support plate rotates to the limit on the support main shaft, the limiting assemblies are used for limiting and fixing through the limiting rods, so that the throttle range is effectively controlled, and the throttle flexible shaft is protected from being damaged.
Drawings
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is an overall front view of the present invention;
FIG. 3 is an exploded view of the present invention in its entirety;
in the figure: 1. the device comprises a bracket main body, 11, a positioning pin, 12, a supporting main shaft, 21, an operating handle, 22, a supporting plate, 23, an accelerator flexible shaft, 24, a first fixing block, 3, a locking assembly, 31, a damping baffle, 32, a spring, 33, a supporting sheet, 34, a fixing screw rod, 41, a second fixing block, 42 and a limiting rod.
Detailed Description
The utility model will be further explained with reference to the drawings.
As shown in fig. 1, 2 and 3, the accelerator control device for the excavator comprises an operating handle 21, a support plate 22 and an accelerator flexible shaft 23; further comprising a locking assembly 3;
one end of the operating handle 21 is fixedly arranged on one end of the supporting plate 22 of the bending structure and drives the supporting plate 22 to rotate around the bending position of the supporting plate at a limiting angle on the supporting main body,
the other end of the supporting plate 22 is rotatably connected with an accelerator flexible shaft 23;
the locking assembly 3 comprises a spring 32 and a damping flap 31; the spring 32 exerts an elastic force on the damping flap 31 and causes the damping flap 31 to press the support plate 22;
further, a shaft sleeve is arranged at the bending position of the support plate 22, and the shaft sleeve is sleeved on the support main shaft 12 on the support main body 1 in a matching manner;
the damping baffle 31 and the spring 32 are sequentially sleeved on the shaft sleeve from bottom to top and are limited and fixed through the limiting assembly;
lubricating grease can be coated between the shaft sleeve and the support main shaft 12, or a bearing which can be in clearance fit is adopted for connection;
the limiting component mainly limits the damping baffle 31 and the spring 32, so that the spring 32 acts the elastic force on the damping baffle 31, and can be a sleeve with one end closed, and the sleeve is sleeved outside the spring 32 and then fixed on the bracket main body 1 through a screw;
in addition, the preferable technical scheme is that the limiting component comprises a supporting sheet 33 and a fixing screw 34;
the support main shaft 12 is provided with internal threads;
one end of the fixed screw 34 sequentially passes through the support sheet 33, the spring 32 and the damping baffle 31 and is then installed on the internal thread in a threaded manner;
that is, the spring 32 is located between the support plate 33 and the damping flap 31, and still has an elastic force by a telescopic action, and the elastic force of the spring 32 can be adjusted by rotating the fixing screw 34.
Furthermore, a clamping groove is formed in the damping blocking piece 31 and clamped on the positioning pin 11 on the bracket main body 1, so that the damping blocking piece 31 is circumferentially limited when the supporting plate 22 rotates.
Further, the supporting plate 22 is of an L-shaped structure;
a pair of limiting assemblies respectively positioned at two sides of the supporting plate 22 are arranged on the bracket main body 1, and each group of limiting assemblies comprises a second fixing block 41 fixed on the bracket main body 1 and a limiting rod 42 installed on the second fixing block 41 in a threaded manner;
when the support plate 22 rotates to the extreme position, the stopper rod 42 contacts the support plate 22;
in addition, the support plate 22 can also be a Z-shaped structure, when the support plate is in the Z-shaped structure, the shaft sleeve is positioned at the bending part of the support plate 22 close to the operating handle 21, and the accelerator flexible shaft 23 is connected to the other end of the support plate 22;
when the operating handle 21 drives the supporting plate 22 to rotate, the accelerator flexible shaft 23 can be driven to stretch out and draw back along with the operating handle, the oil inlet amount of an accelerator motor is guaranteed, the L-shaped or Z-shaped structure of the supporting plate 22 can be selected according to the actual situation, the accelerator flexible shaft is mainly used for correcting the position of the accelerator flexible shaft 23, and the accelerator flexible shaft 23 can be conveniently adjusted to be suitable for different installation spaces.
Further, a first fixing block 24 is arranged on the bracket main body 1, and a notch matched with the middle part of the accelerator flexible shaft 23 is arranged on the first fixing block 24;
namely, when the accelerator flexible shaft 23 is fixed, the accelerator flexible shaft can be directly clamped in the gap, one end (an accelerator pull wire) of the accelerator flexible shaft 23 is rotatably connected with the supporting plate 22, and the accelerator flexible shaft is stretched along with the rotation of the supporting plate 22 to realize the control of the accelerator motor.
When the throttle control device for the excavator is used, the supporting main shaft 12, the first fixing block 24, the second fixing block 41 and the positioning pin 11 can be welded and installed on the bracket main body 1;
the manual operation handle 21 drives the support plate 22 to rotate, bakelite convenient to hold by hand can be arranged on the operation handle 21, a shaft sleeve at the bent part of the support plate 22 rotates relative to the support main shaft 12, so that the accelerator flexible shaft 23 is pulled by the other end of the support plate 22, and the accelerator flexible shaft 23 controls the oil inlet amount of an accelerator motor to ensure the power output of the accelerator motor;
because the locking assembly 3 is arranged at the bending part of the support plate 22, the spring 32 always applies elastic force to the damping retaining sheet 31 and acts on the support plate 22 through the damping retaining sheet 31, when the support plate 22 rotates, the support plate 22 is subjected to the friction force converted from the elastic force, so that the support plate 22 can be locked on the support main shaft 12, and the unstable condition caused by overlarge vibration during working is avoided;
on one hand, the fixed screw 34 rotates to adjust the compression amount (elasticity) of the spring 32, so that the situation that the traditional mode of adopting a belleville spring 32 gasket is not easy to adjust is avoided, and on the other hand, a clamping groove at one end of the damping blocking piece 31 is clamped on the positioning pin 11, namely the damping blocking piece 31 can axially move under the action of the elasticity to press the support plate 22 and cannot rotate, so that the support plate 22 has damping feeling when rotating relative to the support main shaft 12, the locking effect of the spring 32 on the support plate 22 is better, and the throttle motor is in a stable power output state;
in addition, the support main body 1 is provided with limiting assemblies at two sides of the support plate 22, when the support plate 22 rotates to the limit on the support main shaft 12, the limiting assemblies are limited and fixed through the limiting rod 42, the throttle range is effectively controlled, and the throttle flexible shaft 23 is protected from being damaged.
The exemplary embodiments proposed by the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various changes and modifications can be made to the specific embodiments described above, and various combinations of the various technical features and structures proposed by the present invention can be made without departing from the concept of the present invention, and the scope of the present invention is determined by the appended claims.
Claims (6)
1. The accelerator control device for the excavator comprises an operating handle (21), a support plate (22) and an accelerator flexible shaft (23);
characterized in that it also comprises a locking assembly (3);
one end of an operating handle (21) is fixedly arranged on one end of a supporting plate (22) of the bending structure and drives the supporting plate (22) to rotate around the bending position of the supporting plate at a limiting angle on the supporting main body;
the other end of the supporting plate (22) is rotatably connected with an accelerator flexible shaft (23);
the locking assembly (3) comprises a spring (32) and a damping flap (31); the spring (32) exerts an elastic force on the damping flap (31) and causes the damping flap (31) to press against the support plate (22).
2. The throttle control device for the excavator as claimed in claim 1, wherein a shaft sleeve is arranged at the bending part of the support plate (22), and the shaft sleeve is sleeved on a support main shaft (12) on the bracket main body (1) in a matching way;
damping separation blade (31) and spring (32) from the supreme suit in proper order in down are sheathe in to carry out spacing fixed through spacing subassembly.
3. The throttle control apparatus for excavators according to claim 2, wherein the limit assembly comprises a support plate (33) and a fixing screw (34);
the supporting main shaft (12) is provided with internal threads;
one end of the fixed screw rod (34) sequentially penetrates through the supporting sheet (33), the spring (32) and the damping baffle sheet (31) and is installed on the internal thread in a threaded mode.
4. The throttle control device for the excavator according to any one of claims 1 to 3, wherein the damping blocking piece (31) is provided with a clamping groove, and the clamping groove is clamped on the positioning pin (11) on the bracket main body (1) so that the damping blocking piece (31) is circumferentially limited when the support plate (22) rotates.
5. The throttle control apparatus for excavators according to claim 4, characterized in that the support plate (22) has an L-shaped structure;
a pair of limiting assemblies respectively positioned at two sides of the supporting plate (22) are arranged on the bracket main body (1), and each group of limiting assemblies comprises a second fixing block (41) fixed on the bracket main body (1) and a limiting rod (42) installed on the second fixing block (41) in a threaded manner;
when the support plate (22) rotates to the limit position, the limiting rod (42) is in contact with the support plate (22).
6. The throttle control device for the excavator as claimed in claim 4, wherein the bracket body (1) is provided with a first fixing block (24), and the first fixing block (24) is provided with a notch matched with the middle part of the throttle flexible shaft (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123265293.0U CN216447018U (en) | 2021-12-23 | 2021-12-23 | Throttle control device for excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123265293.0U CN216447018U (en) | 2021-12-23 | 2021-12-23 | Throttle control device for excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216447018U true CN216447018U (en) | 2022-05-06 |
Family
ID=81375449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123265293.0U Active CN216447018U (en) | 2021-12-23 | 2021-12-23 | Throttle control device for excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216447018U (en) |
-
2021
- 2021-12-23 CN CN202123265293.0U patent/CN216447018U/en active Active
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