Balanced hydraulic device with alarm function and brake pad hot press

Abstract

The utility model relates to the technical field of brake pad production, in particular to a balance hydraulic device with an alarm function and a brake pad hot press. The balance hydraulic device with the alarm function comprises a base, an alarm and a plurality of suspension mounting seats, the base is provided with a plurality of piston cavities; the bottom of each suspension mounting base is connected with a piston column, the piston columns are connected to the piston cavities in a sliding mode, liquid storage cavities are formed between the piston columns and the piston cavities, the liquid storage cavities are filled with hydraulic oil, all the liquid storage cavities communicate with one another, and all the suspension mounting bases ascend and descend independently; the alarm is connected to the base, each suspension mounting seat is connected with a triggering piece, and the triggering pieces can trigger the alarm; when at least one of the suspension mounting seats is higher than or lower than the original set height, the trigger part triggers the alarm. According to the balance hydraulic device with the alarm function and the brake pad hot press, the alarm can be triggered when the amount of friction layer powder in the hot pressing cavity is too large or too small, and losses of manufacturers are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of brake pad production, in particular to a balanced hydraulic device with an alarm function and a brake pad hot press. Background Art

[0002] Brake pads generally include a steel back and a friction layer laminated on the steel back. The raw material of the friction layer is in powder form. During production, the friction layer powder is laminated on the steel back by hot pressing to obtain the brake pad. Therefore, a hot press is required in the brake pad production process.

[0003] In order to meet the pressure requirements in hot pressing, the hot press machine is provided with a hydraulic cylinder, and the hot pressing cylinder drives the hot pressing mold to open and close. In order to improve production efficiency, the brake pad hot pressing mold in the prior art generally includes multiple hot pressing chambers, and one opening and closing of the mold can complete the production of brake pads in multiple hot pressing chambers at the same time. However, the prior art has the following problems: when adding friction layer powder to the mold, there may be a situation of adding too much or too little. When the friction layer powder is added more or less than a certain degree, the quality of the brake pad will not meet the standard. The reason for the above problems is generally that the metering equipment in the production line has errors, or the powder adding equipment is blocked. When the above problems occur, similar problems will occur in the subsequent products. Therefore, product quality problems generally occur in batches. In the past, it was difficult to find the above problems in the process of brake pad production. They were only found in the product inspection link, resulting in a large number of unqualified products. The manufacturer will suffer great losses if it is not possible to know the wrong amount of powder added in time during production. Utility Model Content

[0004] The utility model aims to provide a balanced hydraulic device with an alarm function, aiming to solve the problem in the prior art that the manufacturer suffers great losses due to the inability to timely know the error of adding powder amount during production.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a balancing hydraulic device with an alarm function, which includes a base, an alarm and multiple suspended mounting seats; the base is provided with multiple piston chambers opening upward; the bottom of each suspended mounting seat is respectively connected to a piston column, the piston column is slidably connected to the piston chamber, a sealing structure is provided between the piston column and the piston chamber to form a liquid storage chamber, the liquid storage chamber is filled with hydraulic oil, all the liquid storage chambers are interconnected, and each suspended mounting seat is independently raised and lowered; the alarm is connected to the base, and each suspended mounting seat is respectively connected to a trigger member, which can trigger the alarm; when the height of all the suspended mounting seats is at the original set height, the alarm is not triggered; when at least one of the suspended mounting seats is higher or lower than the original set height, at least one of the trigger members triggers the alarm.

[0006] Furthermore, the suspension mounting seats are arranged in the transverse direction.

[0007] Furthermore, three piston columns are connected to the bottom of each suspension mounting seat, and the three piston columns are arranged in the longitudinal direction.

[0008] Furthermore, the suspension mounting seat includes a suspension plate and a lower mold mounting plate arranged above the suspension plate; the suspension plate is provided with a first connecting hole, the piston column is provided with a second connecting hole, and a connecting column or stud is provided to pass through the first connecting hole and the second connecting hole to connect the suspension plate to the piston column.

[0009] Furthermore, the trigger member is provided with a pressing portion, the alarm is a press-type alarm and its trigger button is arranged at the top, and the pressing portion can press the trigger button when the trigger member moves downward.

[0010] Further, the number of the suspension mounting seats is an even number, the number of the alarms is half of the number of the suspension mounting seats, and one alarm is opposite to the triggering members in two suspension mounting seats.

[0011] Furthermore, the base is provided with a connecting groove extending from the outer wall of the base to the inside of the base, the connecting groove extends in the horizontal direction and the vertical direction, and the liquid storage chambers are connected with each other via the connecting groove.

[0012] Furthermore, an elastic structure is provided between the suspension mounting seat and the base, and the elastic structure causes the suspension mounting seat to tend to be close to the base.

[0013] Furthermore, the elastic structure includes a spring and a guide column, the suspension mounting seat is provided with a connecting ear extending outward, the guide column is connected to the base, the connecting ear is vertically slidably connected to the guide column, a butt head is provided on the top of the guide column, the spring is sleeved on the guide column and both ends of the spring butt against the connecting ear and the butt head.

[0014] The utility model also provides a brake pad hot press, which includes a hydraulic cylinder and multiple lower molds, and also includes the above-mentioned balanced hydraulic device with alarm function. The base is installed at the telescopic end of the hydraulic cylinder, and the multiple lower molds are respectively installed on multiple suspended mounting seats.

[0015] The utility model provides a balanced hydraulic device with an alarm function. When in use, the base is installed on the telescopic end of the hydraulic oil cylinder, and the lower molds are respectively installed on the suspension mounting seats. The liquid storage chambers are interconnected to form a communicating vessel structure. During production, the hydraulic cylinder drives the balancing hydraulic device to rise, that is, drives the lower mold to rise; after the mold is closed, if the amount of friction layer powder in each hot pressing cavity of the mold meets the standard, the height of each suspended mounting seat is at the original set height, and the alarm is not triggered; and if the amount of friction layer powder in the hot pressing cavity is too much, then the suspended mounting seat corresponding to the hot pressing cavity will sink relative to other suspended mounting seats during hot pressing, that is, the suspended mounting seat will be lower than the original set height, and the trigger of the suspended mounting seat will trigger the alarm; and if the amount of friction layer powder in the hot pressing cavity is too little, then the suspended mounting seat corresponding to the hot pressing cavity will float relative to other suspended mounting seats during hot pressing, and at the same time, other suspended mounting seats will sink relative to the original set height, and the trigger of other suspended mounting seats will trigger the alarm; therefore, whether the amount of friction layer powder in the hot pressing cavity is too much or too little, the alarm will be triggered, so that the production personnel can know in time and stop the machine for maintenance, reducing the loss of the manufacturer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the balancing hydraulic device with alarm function of the utility model;

[0017] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0018] Figure 3 It is an exploded structural diagram of the balanced hydraulic device with alarm function of the utility model;

[0019] Figure 4 This is a front view of the balancing hydraulic device with alarm function of the utility model;

[0020] Figure 5 It is an exploded structural diagram between the suspension plate and the piston column;

[0021] Figure 6 It is a three-dimensional structural diagram of the base;

[0022] Figure 7 It is a three-dimensional structural diagram of a part of the structure of the brake pad hot press of the utility model.

[0023] Description of reference numerals:

[0024] 1. Base; 11. Piston chamber; 12. Communication groove;

[0025] 2. Alarm; 21. Trigger button;

[0026] 3. Suspension mounting seat; 31. Piston column; 311. Second connecting hole; 32. Trigger; 321. Pressing part; 33. Suspension plate; 331. First connecting hole; 34. Lower mold mounting plate; 35. Connecting ear;

[0027] 4. Elastic structure; 41. Spring; 421. Abutment head; 42. Guide column;

[0028] 51. Hydraulic cylinder; 52. Lower die. DETAILED DESCRIPTION

[0029] The following is a detailed description of the embodiments of the present utility model.

[0030] In this embodiment, unless otherwise clearly specified and limited, when terms such as "set on", "connected", and "connected" appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or connected through one or more intermediate media. For those skilled in the art, the specific meanings of the above terms in this embodiment can be understood according to the specific circumstances. The directional words that appear in this embodiment are to better illustrate the characteristics of the features and the relationship between the features. It should be understood that when the placement direction of this embodiment changes, the characteristics of the features and the direction of the relationship between the features also change accordingly. Therefore, the directional words do not constitute an absolute limitation on the characteristics of the features and the relationship between the features in space, but only play a relative limitation role.

[0031] The utility model provides a balanced hydraulic device with an alarm function, such as Figures 1 to 6 As shown, it includes a base 1, an alarm 2 and a plurality of suspended mounting seats 3; the base 1 is provided with a plurality of piston chambers 11 opening upward; the bottom of each suspended mounting seat 3 is respectively connected with a piston column 31, the piston column 31 is slidably connected to the piston chamber 11, a sealing structure is provided between the piston column 31 and the piston chamber 11 to form a liquid storage chamber, the liquid storage chamber is filled with hydraulic oil, all the liquid storage chambers are interconnected, and each suspended mounting seat 3 is independently raised and lowered; the alarm 2 is connected to the base 1, and each suspended mounting seat 3 is respectively connected with a trigger member 32, and the trigger member 32 can trigger the alarm 2; when the height of all the suspended mounting seats 3 is at the original set height, the alarm 2 is not triggered; when at least one of the suspended mounting seats 3 is higher or lower than the original set height, at least one of the trigger members 32 triggers the alarm 2.

[0032] When using, Figure 7 As shown, the base 1 is installed at the telescopic end of the hydraulic cylinder 51, and the lower mold 52 is installed on the suspension mounting seat 3, and each liquid storage cavity is interconnected to form a communicating vessel structure.

[0033] Based on the above structural setting, during production, the hydraulic cylinder 51 drives the balancing hydraulic device to rise, that is, drives the lower mold 52 to rise; after the mold is closed, if the amount of friction layer powder in each hot pressing cavity of the mold meets the standard, the height of each suspension mounting seat 3 is at the original set height, and the alarm 2 is not triggered; if the amount of friction layer powder in the hot pressing cavity is too much, then the suspension mounting seat 3 corresponding to the hot pressing cavity will sink relative to other suspension mounting seats 3 during hot pressing, that is, the suspension mounting seat 3 will be lower than the original set height, and the trigger member 32 of the suspension mounting seat 3 will trigger the alarm 2; if the amount of friction layer powder in the hot pressing cavity is too little, then the suspension mounting seat 3 corresponding to the hot pressing cavity will float relative to other suspension mounting seats 3 during hot pressing, and at the same time, other suspension mounting seats 3 will sink relative to the original set height, and the trigger members 32 of other suspension mounting seats 3 will trigger the alarm 2; therefore, whether the amount of friction layer powder in the hot pressing cavity is too much or too little, the alarm 2 will be triggered, so that the production personnel can know in time and stop the machine for maintenance, reducing the loss of the manufacturer.

[0034] Of course, if the powder in all the hot pressing chambers increases or decreases at the same time, and the increase amount is the same, or the decrease amount is the same, then the balanced hydraulic device with alarm function will not alarm. However, such a situation will not occur in the normal production process. When an error occurs, generally only one or two hot pressing chambers will have an error in the amount of material added. Even if an error occurs, some suspension mounting seats 3 will sink and some suspension mounting seats 3 will float due to the different amounts of error, which will trigger the alarm 2. When producing different batches of brake pads, the amount of friction layer powder required for different brake pads is also different under normal circumstances. However, as long as the powder in each pressing chamber is basically the same (within the range of the amount set for production), that is, the amount of powder meets the amount required for the production of this model of brake pads, then the balanced hydraulic device with alarm function will not alarm. Therefore, it is not necessary to replace the balanced hydraulic device with alarm function when changing the mold.

[0035] In this embodiment, the suspension mounting seats 3 are arranged in the transverse direction. The bottom of each suspension mounting seat 3 is connected to three piston columns 31, and the three piston columns 31 are arranged in the longitudinal direction.

[0036] In this embodiment, the suspension mounting seat 3 includes a suspension plate 33 and a lower mold mounting plate 34 arranged above the suspension plate 33; the suspension plate 33 is provided with a first connection hole 331, and the piston column 31 is provided with a second connection hole 311. A connection column or a stud is arranged to pass through the first connection hole 331 and the second connection hole 311 to connect the suspension plate 33 with the piston column 31. The connection between the suspension plate 33 and the piston column 31 is realized by means of the above structure, which is simple in structure and easy to process and produce.

[0037] In this embodiment, the trigger member 32 is provided with a pressing portion 321, the alarm 2 is a push-type alarm and its trigger button 21 is arranged at the top, and the pressing portion 321 can press the trigger button 21 when the trigger member 32 moves downward. The alarm 2 of this embodiment is triggered by physical pressing, and has high reliability. Preferably, the number of suspension mounting seats 3 is an even number, the number of alarms 2 is half the number of suspension mounting seats 3, and one alarm 2 is opposite to the trigger members 32 in two suspension mounting seats 3. In this way, the number of alarms 2 set can be reduced, and the production cost can be reduced. Of course, by further improving the structure, it can be set so that one alarm 2 corresponds to more suspension mounting seats 3, which is also possible.

[0038] In this embodiment, the base 1 is provided with a connecting groove 12 extending from the outer wall of the base 1 to the inside of the base 1, and the connecting groove 12 extends in the horizontal direction and the vertical direction, and the liquid storage chambers are connected to each other via the connecting groove 12. During processing, the liquid storage chambers are connected to each other by drilling horizontal holes and vertical holes from the outer wall of the base 1 in a horizontal manner. Of course, the through holes on the outer wall need to be re-sealed after the holes are processed.

[0039] In this embodiment, an elastic structure 4 is provided between the suspension mount 3 and the base 1, and the elastic structure 4 makes the suspension mount 3 tend to approach the base 1. The elastic structure 4 makes the suspension mount 3 close to the piston column 31 from top to bottom, so that the suspension mount 3 rises and falls closely following the rise and fall of the piston column 31. Preferably, the elastic structure 4 includes a spring 41 and a guide column 42, and the suspension mount 3 is provided with a connecting ear 35 extending outward, the guide column 42 is connected to the base 1, the connecting ear 35 is vertically slidably connected to the guide column 42, and a butting head 421 is provided on the top of the guide column 42, and the spring 41 is sleeved on the guide column 42, and the two ends of the spring 41 butt against the connecting ear 35 and the butting head 421.

[0040] The utility model also provides a brake pad heat press, such as Figure 7 As shown, it includes a hydraulic cylinder 51 and multiple lower molds 52, and also includes the above-mentioned balancing hydraulic device with alarm function. The base 1 is installed at the telescopic end of the hydraulic cylinder 51, and the multiple lower molds 52 are respectively installed on multiple suspended mounting seats 3.

[0041] In summary, this balanced hydraulic device with alarm function can trigger the alarm 2 when the amount of friction layer powder in the hot pressing chamber is too much or too little, so that production personnel can know in time and stop the machine for maintenance, reducing the loss of the manufacturer.

[0042] In the absence of conflict, the above-mentioned embodiments and features thereof may be combined with each other.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the preferred technical solutions of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solutions of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the utility model.

Claims

1. A balanced hydraulic device with an alarm function, characterized in that: It comprises a base (1), an alarm (2) and a plurality of suspension mounting seats (3); The base (1) is provided with a plurality of piston chambers (11) with openings facing upward; The bottom of each suspension mounting seat (3) is respectively connected to a piston column (31), the piston column (31) is slidably connected to the piston cavity (11), a sealing structure is provided between the piston column (31) and the piston cavity (11) to form a liquid storage cavity, the liquid storage cavity is filled with hydraulic oil, all the liquid storage cavities are interconnected, and each suspension mounting seat (3) is independently raised and lowered; The alarm (2) is connected to the base (1), and each suspension mounting seat (3) is respectively connected to a trigger member (32), and the trigger member (32) can trigger the alarm (2); When the heights of all the suspension mounting seats (3) are at the original set heights, the alarm (2) is not triggered; When at least one of the suspension mounting seats (3) is higher or lower than an originally set height, at least one of the triggering members (32) triggers the alarm (2).

2. The balanced hydraulic device with alarm function according to claim 1, characterized in that: The suspension mounting seats (3) are arranged in the transverse direction.

3. The balanced hydraulic device with alarm function according to claim 2, characterized in that: The bottom of each suspension mounting seat (3) is connected to three piston columns (31), and the three piston columns (31) are arranged in the longitudinal direction.

4. The balanced hydraulic device with alarm function according to claim 3, characterized in that: The suspension mounting seat (3) comprises a suspension plate (33) and a lower mold mounting plate (34) arranged above the suspension plate (33); the suspension plate (33) is provided with a first connecting hole (331), the piston column (31) is provided with a second connecting hole (311), and a connecting column or a stud is provided to pass through the first connecting hole (331) and the second connecting hole (311) so as to connect the suspension plate (33) with the piston column (31).

5. The balanced hydraulic device with alarm function according to claim 1, characterized in that: The trigger member (32) is provided with a pressing portion (321), the alarm (2) is a press-type alarm and its trigger button (21) is arranged at the top, and the pressing portion (321) can press the trigger button (21) when the trigger member (32) moves downward.

6. The balanced hydraulic device with alarm function according to claim 5, characterized in that: The number of the suspension mounting seats (3) is an even number, the number of the alarms (2) is half the number of the suspension mounting seats (3), and one alarm (2) is opposite to the triggering members (32) in two suspension mounting seats (3).

7. The balanced hydraulic device with alarm function according to claim 1, characterized in that: The base (1) is provided with a connecting groove (12) extending from the outer wall of the base (1) to the inside of the base (1), the connecting groove (12) extending in the transverse direction and the longitudinal direction, and the liquid storage chambers are connected to each other via the connecting groove (12).

8. The balanced hydraulic device with alarm function according to claim 1, characterized in that: An elastic structure (4) is provided between the suspension mounting seat (3) and the base (1), and the elastic structure (4) causes the suspension mounting seat (3) to tend to approach the base (1).

9. The balanced hydraulic device with alarm function according to claim 8, characterized in that: The elastic structure (4) comprises a spring (41) and a guide column (42); the suspension mounting seat (3) is provided with a connecting ear (35) extending outward; the guide column (42) is connected to the base (1); the connecting ear (35) is vertically slidably connected to the guide column (42); a butt head (421) is provided on the top of the guide column (42); the spring (41) is sleeved on the guide column (42) and both ends of the spring (41) butt against the connecting ear (35) and the butt head (421).

10. A brake pad hot press, characterized in that: It comprises a hydraulic cylinder (51) and a plurality of lower molds (52), and also comprises a balancing hydraulic device with an alarm function as described in any one of claims 1 to 9, wherein the base (1) is mounted on the telescopic end of the hydraulic cylinder (51), and the plurality of lower molds (52) are respectively mounted on a plurality of suspended mounting seats (3).

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